What is your relationship between text and performance How is text Essay

What is your relationship between text and performance How is text used in, for and as art, design and performance - Essay Example By providing access, that is, to every form of extremism, including the prostitute, the madman, the artist, and the critic, modern society had stripped man of his ability to approach the society from without, and therefore to critique. Gavin Butt, writing specifically about art and literature criticism more than a half a century later, in 2005, claimed that the position of the critic had not substantially changed. He argued that criticism had suffered a crisis following post-structuralism in which the â€Å"space for criticality† had â€Å"withered† (p 1). Specifically, he claimed that theorists following Derrida, through declaring a deconstructive stance in regard to text in which the critic lives inside the text rather than outside of it, thereby becoming unmoored from any objective or â€Å"anterior† position from which to judge a text’s intent, have lost claim to any constructive ground by which to judge such texts (p 3). Taking, as one must in the pos tmodern world, the notion of text to its logical conclusion, one comes to the same argument that Marcuse presented. The artist cannot find room to critique society because he lives within the text that society represents. But is this necessarily so? If, that is, Marcuse found it possible to write his book, or Butt found it worthwhile to discuss the role of the critic, there must be some possibility of critical distance still available to the artist. Or else why so much spilled ink? The answer, it is believed here, is found in the continuing argument provided by Butts – and indeed hinted at in the work of both Marcuse and Derrida, as well as others. Through what Butt calls the â€Å"performative† act of criticism, the artist as well as the critic, is able to form an act of criticism of â€Å"text.† Butt calls for a criticism â€Å"after criticism† which rests on the â€Å"event-ness† or immanence of an act as the significant factor, rather than any supposed transcendent or theoretical quality concerning the notion of criticism. In other words, the artist, by acting on a text, defined however it may be defined, is able to approach that text in a way that is instructive or altering or controlled or otherwise understood. In this brief paper, the role of the artist in defining the interaction between text and performance will be considered. Using the framework that Butts suggests, as presaged by other theorists working in the same vein, and as applied through the work of select contemporary artists, the paper will consider how text, both literally and figuratively configured, relates to performance, and how the artist may make use of this relationship as a critical function. Brief definition of the notion of â€Å"text† will be offered, followed by a critical examination of how the relevant working artists have used actual and figurative text in their art to significant effect. Following this exposition, conclusions will be offered regarding the use of performance and text within my own approach to art as a means of achieving critical distance from the society in which I live and communicative proximity to my viewers, so that my art may be both meaningful and substantive. Text Defined In their film about the French philosopher who defined the deconstruction movement, Jacques Derrida, Kirby Dick and Amy Ziering weigh his influence and theoretical suppositions against the man himself. This is a fitting tribute in many ways, since Derrida believed that the notion of a â€Å"text† includes a structurally infinite set of possibilities, a network of associations that spring from any given object or

The Scarlet Letter as a Love Story Essay Example | Topics and Well Written Essays - 1500 words

The Scarlet Letter as a Love Story - Essay Example In much the same way, Nathaniel Hawthorne’s penultimate novel, The Scarlet Letter, has continued to evoke a level of controversy among scholars and casual readers alike. The underlying root of this controversy is whether or not this particular novel can in fact be described as a love story between Hester Prynne and Arthur Dimmesdale; the two main characters around whom the novel focuses. Accordingly, in seeking to analyze this particular question and providing a level of textual support to serve as evidence with regards to the stance of this particular student, the following discussion will be concentric upon promoting the idea and understanding that even though many other themes exist within this particular novel, an unmistakable and easily denoted reality is that the action of the entire piece is predicated not upon lust, betrayal, adultery, or public censure; rather, it is predicated upon a disarmingly complex yet simple love story between the two main characters.... Ultimately, the author, Hawthorne, was somewhat disquieted about writing such a simple love story. In this way, the introductory quote that is referenced above helps to serve as something of a preliminary apology with regards to presenting such a complex love story within the guise of something seemingly different. Further on in the story, Pearl asks a telling question that turns into something of a prophetic comment which further helps to prove the underlying nature of the novel as a love story. Says Pearl, â€Å"Mother,† said little Pearl, â€Å"the sunshine does not love you. It runs away and hides itself, because it is afraid of something on your bosom. . . . It will not flee from me, for I wear nothing on my bosom yet!† (Hawthorne 99). The clear level of understanding that can be had with regards to this specific quote is the fact that even though it is not clear whether or not Hester waits for the father of Pearl to come back into her life, Pearl seems to understa nd perfectly well that this is the case; equating â€Å"the sunshine† with Dimmesdale; retreating, hesitant, uncertain, and fearful because of the stigma that the adulteress has upon her character. In this way, even though a clear determination at this point of the story does not reveal whether or not the entire tale should be considered a â€Å"love story†, Pearl’s prophetic level of understanding seems to leave no doubt with regards to the true nature of the novel. Similarly, another quote that helps to solidify the understanding that the novel of the Scarlet Letter is in fact a love story is with regards to the following quote. Says Hawthorne, But Hester Prynne, with a mind of native

Basement Car Park Design

Basement Car Park Design A basement car park has to be design in this project to meet the property developers requirement. The car park will have 3 below ground level as the figure attached in the appendix (page 2). A site investigation has been completed and supplied as the information in this project. The construction technique for the basement walls has to be identified, then design the basement walls and produce a report justifying the solution. 1.2 Project Aim and Objective This project title is set up for student who is having their third year study in Civil and Structural Engineering. The objective of this project is to reflect the design and construction process of a geotechnical structure that students are likely to encounter in their future industry life. There are several aim have to be achieved in order to meet the objective in this project. Those aims are: To gain the overall thinking in a project construction and understanding those factors influence the development of the project. To gain deeper knowledge in the geotechnical field such as type of retaining structure and soil profiles. To develop the rational thinking and view of the constructability of the project. To identify the engineering problems in a project and minimize it to the minimum. To justify the proposed concepts into engineering fields. To apply engineering thinking into a project and design the structure in accordance. To communicate with the supervisor for seeking appropriate advice and self study to complete the project. 1.3 Project Scope This project had been separated into two main parts which are conceptual design and detailing design. In the conceptual design part, the choices of pile have to be considered wisely and justify it before get into the detailing design part. In this project, there are several type of retaining structure can be used but just the most appropriate one will be chosen to carry out into the detailing design part. There are few factors have to be concerned while selecting the choice of retaining structure. Those factors are the type of soil, durability, constructability, estimated costs and others. By having a good comparison among type of retaining structure, then the most adoptable type of retaining structure will be selected to construct the retaining wall. For the detailing design part, an adequate design calculation has to be produced in order to show that the retaining structure is satisfied with several circumstances and sufficient drawings have to be prepared if needed. The construction sequences have to indentify and list out clearly. Last but not least, a detailed method statement for the safe construction of the building including any supporting risk assessments, and an outline construction programs in the form of a bar have to be provided. 2.0 Background Study and Constraints The background study is the first stage of this entire project and a work must to be done before a project begin to progress on. The main purpose of this stage is to gather information as much as possible and analysis to figure out the restriction of the project. There must be some restriction in every single project that has to be concerned and further rational thinking to manipulate a good design. The discussion of the constraints has to be done in the early part of the project then the better final design will be produced by passing through this process. 2.1 Deep Excavation and Site The site tolerance is limited due to a public highway located just next to the footpath which is 2m away from the site. There must be some disturbance will face by the public highway due to this significant issue. This point has to be considering while choosing the type of retaining structure to be construct and minimizing it to the minimum when the construction is going on. Deep excavation has to be taking part in this entire project, so the hazards of deep excavation either supported or unsupported case has to be indicated and it is a considerable concern while making decision for the type of earth retaining structure. For example, the dewatering problems might be exist base on the water table and the excavation is variable base on different type of soil in the area as well. 2.2 Soil Profiles The soil profiles are the interesting and concerning part for the geotechnical engineering especially the engineering soils found beneath the topsoil [1]. The engineering properties and the behaviour of these soils are their concerning and interesting point [1]. Different type of soil profiles will be having different ability for a structure. Therefore, site investigation process has to carry out to determine the soil profiles. The layer and the type of soil or rock beneath the ground surface will be determined by this process. Its behaviour and the properties of each layer will be obtained as well to progress on. In this project, there are three boreholes given from the site investigation data which named as BH-02, BH-03 and BH-09. The boreholes record is attached at the back of the report which in the appendix part (from page 1 to page 2). The location of BH-02 and BH-03 are shown inside the plan view of the site but there is nothing relevant to BH-09 can be figured out from the view. The plan view is attached in the appendix (page 1). A simple analytic of the height and depth of each layer have done which shown in the Figure 2.1, 2.2 and 2.3. C:UsersFuhDesktopZzz_Study thingsCIVE 3709ProjectIMG_0619.JPG Figure 2.1 Borehole Record, BH-02 C:UsersFuhDesktopIMG_0617.JPG Figure 2.2 Borehole Record, BH-03 C:UsersFuhDesktopIMG_0618.JPG Figure 2.3 Borehole Record, BH-09 From the figure of the three boreholes records, it shown that they are about the same. The soil profiles for the top layer is made ground then followed by clay and then mudstone as the bottom layer. Clay is a naturally occurring material composed primarily of fine-grained minerals, which is generally plastic at appropriate water contents and will harden with dried or fired. Although clay usually contains phyllosilicates, it may contain other materials that impart plasticity and harden when dried or fired. Associated phases in clay may include materials that do not impart plasticity and organic matter [14]. In the other hands, mudstone is a fine grained sedimentary rock which is formed by clays or muds with the pressure over long time. It looks like hardened clay but depending on the situation when it was formed. 2.3 Water level Groundwater observation where the water seeps or ingress has to be recorded in the site investigation logs as they link with the casing and the boreholes depth [2]. Groundwater observation is the concern for geotechnical engineering due to the water pressure too. The water pressure is an issue that will affect the decision of the choice of retaining structure and the depth of the pile as well. The water table is not given in this particular project specification therefore proper consideration is needed before making any assumption. The water level is to be assumed one meter below ground level after a long consideration and communication with supervisor. This should be the best assumption and go on for the later part of design. 2.4 Time, Cost and Quality As a designer, the concern of the property developer has to be taking into consideration while designing a project. Time, cost and quality are playing the important roles for a single project which will be the concern of the developer. These three elements are the key issues and related to each other. The cost of the project will be increased if a project construction time getting longer. Base on this, the shorter the construction period the lower the cost of the project so a proper planning of the construction method and procedure is needed to minimize the construction cost but the quality of the project must be still maintain in a satisfy adoptable level. 3.0 Type of Earth Retaining Structure Earth retaining structures are mainly used to support the soil and structure due to the difference in elevation of the ground surface. It can be either propped or cantilever. There is various type of earth retaining structures which are used in geotechnical field for civil engineering. Those retaining structure more commonly used in basement car park and more suitable for this project are: Sheet Pile Walls Diaphragm Walls Bored Pile Walls There is different capable of each type of wall, the typical applications of walls have shown in the figure below. Figure 3.1 Typical applications of embedded walls ([8] pages 98) 3.1 Sheet Pile Walls Sheet pile walls are made of timber or precast concrete previously but nowadays sheet pile walls are more commonly made of steel. Sheet pile walls are formed by individually driven sheet pile into the ground and form the series of interlocking piles to support the soil and the structure [1]. Sheet pile wall can be category into two main types which are cantilever wall and anchored wall. Sheet piles are light to handle and being robust. It can handle the high compressive loads whiles it driven into a hard ground surface [3]. It has the ability of being driven into deep penetration to reach a bearing stratum or to develop a high frictional resistance [3]. There are two method of driving sheet piles into stratum which is: Pitch and Drive This is the simplest method, each sheet pile or pair of piles will be driving into the finished level (full depth) before repeating the next sheet pile. By the way, this method is preferable for loose soils and short piles only. Panel Driving In this method, the first pair of piles has to be pitched carefully, plumbed and driven partly to form adjacent piles. Then, the remaining of piles are pitched and interlocked. Finally, the last pair of piles pitched into the panel are then driven partially and followed by the partial driving of the rest of the panel, working back towards the first pair in the panel [4]. The piles is arranged as whole panel, therefore it is no need to drive all piles fully to maintain the piling operations. The risk of driving problem and difficulties of de-clutching will be minimised too [5]. This method is suitable for dense sands and stiff cohesive soils. http://www.earthwork.us/files/DSCN2063.JPG Figure 3.2, Sheet Pile Walls There are few issues have to be discuss while considering to be used sheet pile walls for design. Firstly, the deep of the basement has to be constructed. If the depth of the basement too deep which mean the length of the pile will be quite long and the ability of transporting, pitching and driven those piles has to be taken into consideration especially in urban area. Cost will be affected in this issue as well because it is hard to manufacture a big size of sheet piles. Basement car park recently constructed in urban area to fully utilize the space in the cities. While sheet pile walls can be act as a permanent structure or temporary work in a construction project, but there is a concern if the sheet piles act as the temporary work. The ability to remove the sheet piles after constructed the retaining structure has to be think twice base on the limited spaces around the cities for the crane to remove it. Even there is some improvement of the technology on the noise and vibration problems for sheet piles while driven it into the stratum but vibration and noise are still exit which is the disadvantages of sheet piles. The improvement just mainly overcomes the problem on some type of soil layer only, such as by using some hydraulic pressure equipment to press the sheet piles into stiff clay layer. Refer to this entire issue; there must be rational consideration if steel pile has to be used specially in the urban area. 3.2 Diaphragm Walls A diaphragm wall basically is the combination of reinforced concrete wall and sheet pile wall. It has the ability of the combination of reinforced concrete and sheet pile wall. A diaphragm wall are formed and fixed by vertical reinforced concrete slab in position with the same manner to support the soil. In the other hand, the sheet pile held in the lower part of the diaphragm wall by the passive and active soil pressures that act upon it [1]. Most of the diaphragm walls are the reinforced concrete wall that cast in situ by a machine digging a trench in panels of limited length. It acts as temporary support during construction and a permanent wall, sometimes with lining [8]. The stability of the excavation to the required depth is filled by the use of a drilling fluid, usually is bentonite slurry [6]. This slurry has thixotropic properties, as it forms into gel when left undisturbed but becomes a liquid when disturbed [1]. The bentonite slurry initially penetrates into the soil and the virtually impervious skin of bentonite particles is formed [1]. It is only about few millimetres thick on the sides of the trench. There is no penetration of the slurry into clays, sand and silt water. The main purpose of the use of slurry is to prevent collapse of the trench by creates lateral pressures that act on the side of the short trench panel. When the excavation is done, the required steel reinforcement is place into the trench panel. The walls are constructed by filled with concrete in discrete panel lengths ranging typically between 2.5m and 7.0m using purpose in appropriate circumstances. Those displaced slurry being collected for cleaning and further use. Standard widths of diaphragm walling equipment are 600, 800, 1000, 1200 and 1500mm although greater can be provided as required. Depths of the diaphragm wall are constructed up to 50m by using grabs and up to 80m using standard hydromills (milling machines). The remaining intermediate panels are excavated and constructed to fully complete the wall when the concrete has developed sufficient strength. The length of each panel is limited to the amount that the soil will arch, in a horizontal direction, to support the ground until the concrete has been placed [6]. A simplified Figure 3.3 has been attached to shown the various construction stages. In the Figure 3.3, the processes of each stage are: Guide-wall construction Panel excavation in progress Installing stop ends Panel concreting Figure 3.3, the stage of construction a diaphragm walls. http://www.stroyinject.com/images/gallery/pics_new.08.08/thumb_SZ_2.JPG Figure 3.4, Diaphragm Walls There still exists another type of diaphragm walls which are precast reinforced concrete diaphragm walls. The use for this type of diaphragm wall is nearly the same with diaphragm wall that reinforced concrete cast in situ. It provides both temporary and permanent soil support but with limited depth. There must be some advantages and disadvantages for every single earth retaining structure. Therefore the discussion of pros and cons for this type of retaining structure has to be done, while considering of using diaphragm walls. The construction time and cost of diaphragm wall is generally efficient where it is used for both permanent and temporary subsoil retention for walls of medium, and greater, depth [8]. Diaphragm walls also allow the effective transfer of vertical load from the building superstructure to subsoil below basement level. The vertical load transfer is not added in the wall design while the early of diaphragm wall in UK. The reluctance of designers to allow such load transfer was due no doubt to lack of published test results. This situation changed gradually when the diaphragm more commonly use in the construction of basement [8]. While constructing the diaphragm walls, it has the minimum noise and vibration disturbance. This is an advantage of using diaphragm walls as a retaining structure. The noise and vibration in diaphragm wall installation are about the same compare with the normal civil engineering equipment, such as cranes and generators. Base on this, it suitable to be constructed in urban area. Diaphragm walls can be constructed under groundwater condition so there is not any affection in groundwater problems for this kind of structure. Diaphragm walls have the advantages of high bearing capacity and good in horizontal or vertical bearing capacity. The allowances of settlement for this kind of structure are small which is good for superstructure [9]. Although there are many advantages of using diaphragm wall but there is some limitations for this structure to be used. It could not be use either in very soft soil such as soft clay due to trench stability problem or very stiff rock. The principal disadvantages of diaphragm walling are the risk of loss or spillage of bentonite slurry, the relatively high cost of cleaning and the disposal of the slurry, the site space needed for large reinforcement cages and the large cranes needed to handle them. Above all, the need for continuity in the construction process from excavation through concreting to removal of temporary stop formers is a disadvantage of the method [8]. A good quality control is needed in the diaphragm wall construction. Diaphragm walls are the new type of retaining structure which is more modern and construct by some modern equipment. Those skilful and more specialist workers needed while installation the walls. 3.3 Bored Pile Walls Bored pile walls are an earth retaining structure that form by bored cast in situ piles either small or large diameter. This technique often used in deep basements and underground structure as a temporary or permanent retaining structure. It commonly used for those structures with limited working space or constraint of adjacent existing structures that prevent excessive bulk excavation and help to control the movement of the ground [6]. The construction method of bored pile walls are slightly different compare to the diaphragm wall, initially a casing has to be driven into the ground by using the vibro-hammer and leaving 1 metre length of the casing above the ground. Casing can be ignored where the soil profiles are firm to stiff cohesive soils [11]. The power-driven rotary auger (a drilling tool) will be used to cut and remove the soil within the casing to form a borehole. The range of diameters and depths possible is considerable, from 300 to over 5000mm and down to 100. The used of the casing is to support the surrounding soil. If the length of the casing not enough long to reach the required depth in the ground, bentonite slurry could be used to support the soil below the casing. The steel reinforcement will be lifted up and placed into the borehole by crane. If the depth of the boreholes too deep, reinforcements have to be over lapping and welding if possible. The concrete is poured into the borehole to form th e bored pile. Finally, the bored pile is formed by using the vibro-hammer to withdrawn the casing [3][10]. A bored pile wall has its own characteristic that have to take into consideration while selecting the type for retaining structure. The presence of the advantages and disadvantages of the bored pile walls have to be taken into consideration if bored pile walls chosen to be used. The length of bored pile walls can be varied to suit the varying ground condition which is more adoptable for most of the design project. Moreover, the soil can be inspected and if necessary sampled or in situ tests made when it is cut and removed from the boreholes. By using this method, the large excavations and subsequent backfill are eliminated. The noise and vibration are existed while constructing the bored pile but it is acceptable and will not disturb the adjacent pile or structure [12]. Basically, the disadvantages of bored pile wall are not much. The transportation of the casing could be one of it. The unable to place the concrete under the ideal condition and cannot subsequently inspected are one of the disadvantages as well. Figure 3.5, the steps of constructing contiguous bored pile walls. Bored pile walls are categorised into two types, which are: Contiguous Bored Pile Walls Secant Bored Pile Walls Several factors have to be concerned while choosing the type of bored pile walls. Those factors are: Soil Type The ground water profile Construction time available Propping requirements Cost Life span 3.3.1 Contiguous Bored Pile Walls A single row or double row of piles pitched and constructed next to each other with leaving some gaps. Alternative piles are cast first and the intermediate piles are then installed. Figure 3.6 and Figure 3.7 are attached for more detail and understanding. For this type of retaining structure, the water will flow through the gaps between piles [1]. This type retaining structure suitable where the soils are between firm to stiff and the water level is below the depth of excavation. This method is the fastest method and most economic option to construct. Figure 3.6, an example for the plan view of contiguous bored pile wall http://www.sbe.napier.ac.uk/esm/images/bored_pile_small.jpg Figure 3.7, contiguous bored pile wall 3.3.2 Secant Bored Pile Walls Secant bored pile walls are similar with the contiguous bored pile wall, except that the gap of the piles are either filled with concrete or secondary pile are cut into the primary piles as shown in Figure 3.8 and Figure 3.9.This technique is suitable for high water level due to the continuous wall had formed and it is a watertight condition that stops the inflow of water. The procedure of this method is slightly more complicated compare to bored pile wall. Figure 3.8, an example of plan view of secant bored pile walls http://www.amplusltd.com/upldimages/ISecant%20piled%20wal%20-%20Battricks%20-MG_0042.jpg Figure 3.9, Secant bored pile walls 4.0 Comparing and Selecting Of Retaining Structure. By using a simple matrix analysis table as shown in Table 4.1, it can be determined the best selection of retaining structures as in general concept. The selection of the retaining structures can be determined by rational comparisons by applying the weighting into the matrix table. The weighting in the matrix table are represented with numerical numbers from 1 to 3 in which the higher the value, the more beneficial for the route while the lower the value indicates as otherwise. From the table, it shown that each type of the retaining structures is about the same, they have their own characteristic and advantages in different aspects. Secant bored pile walls gained the most point in the weighting but it might not be the best choice because this is just a general concept comparing within the type of retaining structures so a proper comparison that fit with this entire project issues will be done later on. The soil profiles of this project are made ground, firm to stiff clay and mudstone which adoptable for all of the retaining structure mentioned above except sheet pile walls. In this soil conditions, sheet pile walls are not suitable to be driven into the ground due to the hardness of the mudstone layer. This problem can be solved by providing bigger size of sheet pile which significantly increased the cost and waste of materials. Therefore, sheet pile walls are not recommended and if possible choose other type of retaining structure into design. Water level is a problem which will be affected the decision of selecting retaining structures. The water level is to be assumed at 1m below ground level. It is quite high and proper consideration has to be done base on this issue. Diaphragm walls, sheet pile walls and secant pile walls are capable to construct in high water level condition. Contiguous pile walls are not able to construct below ground water condition due to the gaps between the piling which allowed the inflow of the water. This might a concern while selecting this as the retaining structures. Diaphragm walls are a good retaining structure among all of the retaining structure. It allowed the highest depth of excavation which is about 7 to 30m length but 8m of excavation is sufficiently enough in this entire project. In the other hand, the other retaining structures are more adoptable which allowed 4 to 15 or 20m depth of excavation length. This will be an issue while selecting the choice of retaining structures. Basically, there is specific difficulty of constructing each type of retaining structures just in different restriction. There is not much to comment on the ease of construct issue but it must be fit with the site restriction. The durability of each type retaining structure is about the same and it could be ignored while comparing with each other. The cost of construction must be minimizing to the minimum if possible because it is a concern of the project developer and economical problem. Sheet pile walls are rejected in this project due to several concerns. First, the main concern of using sheet pile is the size and area of the pile to be used due to the depth and area of excavation are quite big. It is hard to manufacture such big size of sheet pile in the factory and hard to transport large number of them to the site. If sheet pile chosen into design for basement car park, it will commonly act as temporary work and the ability to withdraw the sheet piles after the construction is an issue because a highway just located 2m away from the boundary of the site. Moreover, the soil profile contains lot of the mudstone which cause the sheet pile hard to be driven into the ground. There will be some vibration which will be affected the public highway either on the foundation or the whole structure while the sheet pile is driven into the ground. Diaphragm walls are good to be used in basement construction which is commonly in urban area. Honestly, it is capable with all the construction constraints in this entire project such as it is able to construct under groundwater condition and there isnà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢t any vibration problem in diaphragm walls construction. Even it is so good compare with other retaining structures but it still will not be selecting as the retaining structure. First, large amount of steel reinforcements needed for a diaphragm walls, it have to be tied up before they lifted up by crane and placed into the panels. Base on the number of materials and skilful workers needed, the cost of the construction will increased directly. It is also relatively high cost of cleaning and the disposal of the slurry. Diaphragm walls are good enough which is a bit over for this project because some of the advantages is not needed in this project. Consequently, diaphragm walls are not suitable for this p roject and some other retaining structure will do because the overall estimated construction cost is too expensive compare with others. Bored pile walls are the most adequate retaining structure to be used in this project compare to the others. Even there are some disadvantages in this type of retaining structure but the advantages of using it are higher after proper consideration and comparing. Then, the vibration and noise of constructing bored pile walls are in the acceptable range and will not affect those structure next to it especially the public highway. Bored pile walls are able to consort with the soil conditions in this project too. It is the cheapest retaining structure as well. Bored pile walls are chosen either secant bored pile wall or contiguous bored pile wall. As a conclusion, secant bored pile wall is chosen as the retaining structure in this project because it offers a watertight alternative compare with contiguous bored pile walls. 4.1 Selected Retaining Structure à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬ Secant Bored Pile Walls Secant bored pile walls basically are bored cast in situ piles either small or large diameter. It will be constructed in a line and the gap between piling will be filling with cement or concrete to form a watertight condition for preventing the inflow of water. The filling technique will be mentioned in the later part of report. Secant bored pile walls are categorised into 3 types which are: Hard / Soft Secant Pile Wall Hard / Firm Secant Pile Wall Hard / Hard Secant Pile Wall 4.1.1 Hard / Soft Secant Pile Wall The female pile has a characteristic compressive strength of 10-20 N/mm2, which is retarded to reduce the strength of the mix while the mail piles are drilled between the female piels. 4.1.2 Hard / Firm Secant Pile Wall 4.1.3 Hard / Hard Secant Pile Wall

Cadmium :: essays research papers fc

Cadmium, symbol, Cd, is a silvery white metallic chemical element with a faint blue tinge to it. It is the fifty-seventh most commonly found element in the earth. It was discovered by F. Stromeyer, in 1817, in Germany. Stromeyer was studying a sample of zinc carbonate which separated into a the new element ultimately called cadmium. The only cadmium materials, greenockite (cadmium sulfide) and otavile (cadmium carbonate) are found in zinc oxide and zinc carbonate. Cadmium, which is usually associated with zinc has some differences; some of which are that cadmium is softer and has a lower melting and boiling point than zinc. There are five basic states of cadmium. First, there is the regular raw metal cadmium. Then there is cadmium oxide which is formed by burning the raw metal in the air producing brown smoke. Cadmium oxide can also be formed by heating cadmium carbonate in acid or ammonia producing a brown powder. By doing this, cadmium and oxygen are being mixed. Cadmium carbonate is made by absorbing carbon dioxide into the raw metal or mixing cadmium salts with ammonium carbonate, forming a salt-like substance. Cadmium sulfide is made by mixing hydrogen sulfide with a solution of cadmium ions, resulting in a range of colors from lemon yellow to a deep red. Cadmium halides are compounds with complex cadmium ions in them to form varied structure solutions. The regular structure of a cadmium atom is that it has four electron shells with a total of 48 electrons in it. The main use for cadmium is to plate iron, steel and other metals, protecting them from corrosion. This method has been used since 1919. The use of cadmium has to be limited because it gives off large numbers of toxins into the environment. The use of cadmium has gradually decreased in order to help the environment. It is not used to plate food processing parts or ovens because of this. Cadmium may be found in some cereals, nuts and vegetables, but scientists doubt that, if taken is small quantities, it would prove harmful. Cadmium is also used for nickel-cadmium batteries and nuclear control rods. It is used in compounds, for example, with copper to harden them. Since the color of cadmium sulfide varies it is useful for

Outline and assess Functionalist explanations of the role of the education system.

As a theory which places heavy emphasis on the analysis of institutions and their relationship with society, especially with regards to the functions of institutions, Functionalists place a significant amount of focus on the education system. However, this perspective is not always accepted, it’s macro theory approach is often seen as too wide bearing to be applied to the study of the education system as well as critics which dispute the functions of the education system as portrayed by functionalists.Nevertheless, its macro theory approach puts the education system in context and is therefore a theory which is notable when discussing the role of the education system. Firstly, it cannot be ignored that one of the main principles of the theory is that society is based upon consensus, – agreement between norms and values. As an institution of secondary socialisation, Functionalist theorists see the education system as one of the main institutions which help to achieve val ue consensus within society, allowing society to operate in a smooth manner.Durkheim suggested that the education system is an institution which helps to create a â€Å"collective consciousness†, uniting society into one body, with the system creating â€Å"social beings†. As put forward by Durkheim, the education system helps to achieve this through the National Curriculum, brought in by the Education Reform Act 1988, which helps to create shared values amongst all pupils throughout the country.Furthermore, Durkheim suggests that subjects made compulsory through the National Curriculum such as History and Religious studies help to enhance cohesion and social stability, minimising conflict within society through value consensus,- keeping social order. In this sense, Functionalism places significant emphasis upon the education system as an institution which contributes to the wellbeing of society.However, it may be that in reality value consensus does not exit, as today the diversity of society means that there is not agreement about norms and values. Ethnic and cultural diversity may therefore be attributed as factors which mean that the education system is not an institution which unites society, as it may not be able to change the norms and values instilled upon members of society by other forms of socialisation, such as the family or the areas of media young people are exposed to.Although, in defence, it is very much true that educational establishments do aim to create a â€Å"collective consciousness† through individual school ethos’s and uniforms, which are in operation to reduce conflict within society. Critically though, these could be seen as polices which aim to stabilise the school learning environment, as opposed to society.In addition, it is true to say that the inclusion of Citizenship is evidence that the government and educationalists are aiming to use education as an institution which aims to promote social cohesion , and indeed â€Å"social beings†. Perhaps it could also been seen, that in terms of the relationship between education and society, that the education system cannot necessarily make up for the diversity of attitudes within society,- to what degree can the education system compensate for differences in values and shape behaviours and attitudes?

Neolithic development Essay

Neolithic development is characterized by the first agricultural revolution, when people moved from hunting – gathering to agriculture and settlement. They developed tools for farming, pottery, spinning, and weaving. 2. The Hebrew is chosen by their God to go to the Promised Land. The Hebrew covenant with their god is characterized by the Ten Commandments that they have to follow throughout their lives. The Talmud is a set of discussions regarding Jewish laws, ethics, customs and history and is held important in Rabbinic Judaism. The Hebrews came to Palestine because some parts of it were defined as part of the Promised Land or Canaan. 3. It was Ahmose I who reunified Egypt in the 8th century by conquest and expulsion of the Hykos and reassertion of Egypt’s power over Nubia and Canaan. 4. It was the Sumerian people who invented taxation in order to make taxation easier. Sumerian scribes are record keepers, which are usually for the records of taxation. Mesopotamia was generally polytheistic, or the belief in many gods. These gods are the ones which provided them whatever they needed to survive. With the harsh environment of the Middle East, these people adapted laws that would punish offenders severely so as to avoid repetition of crimes. Egyptian and Mesopotamian religions differ with the gods they rule and the characteristics of these gods. 5. After Solomon’s death, the Hebrew state became separated, as the ten northern tribes revolted and successfully seceded to create their own kingdoms. 6. The Battle of Kadesh marked the first international peace treaty ever made, and it was between Egyptians and the Hittites. 7. Assyrians maintained political cohesion and military preparedness because they all followed only one rule, and that is of their King. 8. The Magi is a group of people from Media who were known for their religious and funerary practices of the people of ancient Persia. Zend-avesta refers to the interpretation of the Avesta or the primary collection of sacred texts of Zoroastrianism in the Avestan language. Zoroaster taught religion and philosophy, about the universe and the struggle between truths and lies. Ahriman is basically the demon in Zoroastrianism and Ahura Mazda is the god. Satraps are the governors of Median and Persian empires. 9. The weaknesses of the human condition can be overcome by not overindulging or by following a simple life. Attachment and craving can be ceased by following the eightfold path. Nirvana is the state of being of a person wherein he is free from suffering and the cycle of being reborn. Human beings, like all things are impermanent, and there is no constant self. Human existence can be associated with suffering. 10. Jains preach that by cultivating a person’s own personal wisdom and control, he can achieve spiritual development. According to the Bhagavad Gita, the human condition is temporary and can still transcend to a supreme being. Dharma is the duty of a person that he must fulfill. Upanishads teach about the universal spirit and the individual soul and how both asserts an identity in an individual. Here, ascetism is characterized by doing away with wants and desires and following a life away from human indulgence. 11. Zhou China boasted of an organized medical system wherein physicians have specialties. Zhou was different in the aspect of government because it became feudal. Mandate of heaven means that the rulers are legitimately blessed by the heavens, and if the heaven would be displeased, the mandate would be revoked. 12. Yao, Shun, and Yu are the holy and virtuous mythical rulers of China who divided it into its regions. According to Confucius, the family is the basic unit of the society. A just and peaceful society would be obtained if people follow the rules. Mutual obligation would only be evident in the family, of parent and child and of husband and wife. 13. Yin and yang are the two opposing forces in any phenomenon. They are at the same time complimentary, and this is the basis of the system of correspondence in the Chinese philosophy and study of science. Daoism teaches reverence for nature, as it is a way of life. Han Feizi taught Legalism, wherein the ruler should be the one that controls the state. This is based on the concepts of his position of power, certain techniques and laws. Sima quan is a scribe of emperor Wu who made detailed biographies of Royal affairs. Tang is known as the period of golden age for arts and literature, as they called for perfection in one’s skills if they ever wished to pass the examinations of the empire. 14. Geography affected the development of Greece because it is surrounded by other areas. This made Greece a melting pot of intellectuals though this made them vulnerable to the advances of invaders. Hoplites are the soldiers of Ancient Greek, while Polis is the city state itself. Agora on the other hand, is an open place of assembly for the Greeks. Women in Athens are revered and treated highly while women in Sparta are treated inferior to the males. Messenian helots were mistreated and humiliated, and a Spartan can do anything he desire without fear of punishment to a Messenian helot. Greek’s defeat of Persia boosted their confidence and has set forward to more conquests. 15. Sophists taught philosophy and rhetoric. Socrates taught using the Socratic Method wherein you have to ask a series of questions in order to learn. He taught politics, philosophy, ethics, and many more. Socrates was executed because of his pursuit of virtue and truth, and he has praised Sparta which is the rival of Athens. Women were given more importance in the public affairs in the Hellenistic society. Solon was the founding father of the Athenian polis. Greek drama originated from Greek tragedy, wherein performances were made in various festivities. Epicurus advocated for a life without pain and with the pursuit of pleasure. 16. Mystery religion restricted to those who underwent certain secret rites or process. Greek religion is highly based on what the current ruler believes in, and the people would just follow suit. Philip II unified Greek by conquering the lands and using a great destructive army to threaten enemies to submission. The consequence of Alexander’s conquest of Macedonia is that many people aspired for his power, and when he died, the empire was divided. 17. The Bactrian camel was important because it was the only means of travel that could withstand the long arduous trade route for the Chinese. Hans used advance technologies, like cast iron and steel. Han cities were advanced with efficient agriculture and iron industry. In order to solve the poverty among peasantry, some rich Han people were stripped of their land and was given to the peasants for them to work on. The Hans invent Hydraulic powered hammer for agriculture and iron sector and winnowing machine for agriculture. Emperor Wu expanded the Chinese territory, nearly doubling its size. Buddhism in these countries aimed to resolve the problems in a simpler way of life. Korean Buddhism made variations to it because of its inconsistencies. Shinto is a Japanese religion that was native of the country and was considered once as the state religion of Japan.

Governmental decisions essays

Governmental decisions essays Everyday people are faced with hard decisions that effect not only themselves but others as well. On May 24, 1920 on the cover of The New York Times, were many controversial issues and huge governmental decisions that were in action. There was talk of Senate nominations and presidential honor. The big topic however was the discussion by Congress and Gompers about the cost of living. These were all important things that had to be deicide by the people of the United States at this time. There was tension between the government and the people of the United States that had to be ended. In the article Johnson and Wood Close in Oregon there was a race for being crowned as senator. At this time they were doing the senator nominations. Senator Hiram W. Johnson had a lead of seven hundred and seventy five votes over Major General Leonard Wood for the Oregon Republican Presidential preference. According to the counting, the votes stood: Johnson 40,544: Wood 39,769: Lowden 14487: and Hoover 13,036. In the contest between senator George E. Chamberlain and Harvey Stark, the votes were Chamberlain 12,885 and Harvey 7,158.This was the election for the United States Senator. This election at the time was important according to Johnson Jr. senators must be nominated or the west will go democratic. In another article Commend Davis As Fit To Receive Presidential Honor the people had to determine whether one man was a good, strong person to represent them. The people of this time had to determine whether the man was suitable for presidential honor. John W. Davis was known as a strong democrat. That is what the people wanted to represent them in the presidential elections, which were soon to be held. Davis had spoken at democratic councils. There were regrets that the people who liked him did not bring his name to the attention of the democratic leaders. There were a lot of people that followed Davis, that agr...

Illusions in the Great Gatsby essays

Illusions in the Great Gatsby essays Fitzgerald implicates the idea of ignorance is bliss. He helps to show this idea by quoting in the preface, ...the loss of those illusions that give such color to the world so that you dont care weather things are true or false... Gatsby has an ever-lasting love for Daisy. While Gatsby is having this obsession over Daisy, he is content with his life until he losses the illusion that he can have her. An illusion is also occurring in the marriage of Tom and Daisy. They both continue to live together even though they both are having affairs. Gatsby has an ever-lasting love of Daisy. He goes as far as moving across from Daisys house so he can look at Daisys light. The light represents the burning desire he has for Daisy. Gatsby again shows his want for Daisy; he subconsciously knocks over a clock. This symbolizes that he wants to stop time, so it could be like the time when he was with Daisy before the war. This desire is present until a short time before he is murdered. Tom and Daisys marriage is also an illusion. Bot of them are having affairs and they continue to live together as if they are happily married. They probably did this because they wanted to still be sociable with other rich members of high society; they did not want to become out casts. In both cases, Gatsby, Tom and Daisy are happy until their illusion comes crashing down on them, revealing the horrors of reality. Even after all the parties Gatsby has thrown, nobody comes to his funeral. The members of high society have realized the illusion that he has created around himself. I feel this novel moral is, live in the present, dont dwell on the past. "The Grate Gatsby". F. Scott Fitzgerald ...

Charles Darwin

Charles Darwin is the man who formed our way of thinking about modern evolution. He proposed and explained the theory of natural selection and the theory of survival of the fittest. In order to fully understand the contemporary evolutionary theory, we must fully understand Charles Darwin's early theory. In this article, I will explain the complete background of Charles Darwin to the reader, explain his voyage to HMS Beagle, and discuss his theory of natural selection. Charles Robert Darwin, founder of Evolution, was born in the English countryside on February 12, 1809. Charles Darwin was born on February 12, 1809. Charles Darwin was struggling at school as a child. In 1825 Charles became a lucky person and went to the medical department. Darwin is a British scientist who built the foundation of evolution and changed our view of the natural world. Charles Darwin is a discovery of evolutionary biology theory. Charles Darwin is married to his cousin Emma Darwin for 43 years. - To date, Charles Darwin has revolutionized the biology that modern society knows well. He is responsible for the evolution that people are still experiencing today. Born in England on February 12, 1809, he became the fifth child of Dr. Robert and the Susanna Darwin family. He has three sisters and one brother. As his father succeeded as a doctor and his mother belonged to the Wedgwood family, the Darwin family is considered to be wealthy. Charles Darwin was born in Shrewsbury, England. Charles Darwin's grandfather is a naturalist, a philosopher, and a doctor Erasmus Darwin, and he has published four volumes of his articles, including his views on species development. Charles Darwin's father is also a doctor and I hope his son will inherit the family's tradition. At the age of sixteen, Darwin was sent to the University of Edinburgh to study medicine. Darwin is more interested in his zoology and geology courses. Eventually, his father took him out of Edinburgh and sent him to Cambridge to stud y theology. Charles Darwin Charles Darwin is the man who formed our way of thinking about modern evolution. He proposed and explained the theory of natural selection and the theory of survival of the fittest. In order to fully understand the contemporary evolutionary theory, we must fully understand Charles Darwin's early theory. In this article, I will explain the complete background of Charles Darwin to the reader, explain his voyage to HMS Beagle, and discuss his theory of natural selection. Charles Robert Darwin, founder of Evolution, was born in the English countryside on February 12, 1809. Charles Darwin was born on February 12, 1809. Charles Darwin was struggling at school as a child. In 1825 Charles became a lucky person and went to the medical department. Darwin is a British scientist who built the foundation of evolution and changed our view of the natural world. Charles Darwin is a discovery of evolutionary biology theory. Charles Darwin is married to his cousin Emma Darwin for 43 years. - To date, Charles Darwin has revolutionized the biology that modern society knows well. He is responsible for the evolution that people are still experiencing today. Born in England on February 12, 1809, he became the fifth child of Dr. Robert and the Susanna Darwin family. He has three sisters and one brother. As his father succeeded as a doctor and his mother belonged to the Wedgwood family, the Darwin family is considered to be wealthy. Charles Darwin was born in Shrewsbury, England. Charles Darwin's grandfather is a naturalist, a philosopher, and a doctor Erasmus Darwin, and he has published four volumes of his articles, including his views on species development. Charles Darwin's father is also a doctor and I hope his son will inherit the family's tradition. At the age of sixteen, Darwin was sent to the University of Edinburgh to study medicine. Darwin is more interested in his zoology and geology courses. Eventually, his father took him out of Edinburgh and sent him to Cambridge to stud y theology.

Authoritarianism in the Middle East Essay Example | Topics and Well Written Essays - 250 words

Authoritarianism in the Middle East - Essay Example By disguising to advocate Islamic teachings, the royal family tends to justify monopolization of power that promotes authoritarianism. Islam, therefore, is an obstacle to transition from authoritarianism to democracy in the Middle East3. Further, Middle East states lack the prerequisites to enforce the principles of democratization. Lack of a strong civil society, a market driven economy, low income among a great part of the population, and literacy levels and regressive culture contribute to derail development of democratization in the Middle East4. External powers play a fundamental role in instilling ideal and democratic governance in the Middle East5. Strategic guidance and control of the Middle East states by the external powers steers is a key input to help them in the constituting democratic rules and institutions. In addition, external powers precipitate in promoting investments and economic growth needed to expand all the middle class or citizens in the Middle East to enhance economic and social independence that are a prerequisite for democratization. In the process of expansion, external powers increase regime legitimacy and dampening Islamic radicalization. The strategies aid in steering further

Emerging Technology Essay Example | Topics and Well Written Essays - 1750 words

Emerging Technology - Essay Example Emerging technology is a segment of information technology. It is responsible for the development of new products or devices that are expected to be used widely in the upcoming 5 to 10 years. Businesses regularly look to emerging technologies for the devices or new services they provide will help them to build their competitive advantage of the business. Emerging technologies also include the advancement in technologies that business is already using. The advancement in technologies often helps business to accelerate their production process and allow the business to enhance the operations of the business at a cheaper cost. Talking more about emerging technologies in businesses, there are two important fields in emerging technology for businesses, Artificial Intelligence, and Robotics. Robotics can be described as a technological field and part of an engineering science that uses technology of mechanics or electronic to give substitute of human labor. Many production and manufacturing industries have adopted the technology of robotics in their systems. The industry of robotics technology seeks to expand to further businesses industries. While Artificial intelligence is used to make machines intelligent to use in businesses. Businesses use the technology of Artificial Intelligence by entering business information into the business machines that help in developing the information and forecast accurate predictions and identify trends for the company (Wood-Harper, Jayaratna, & Wood, 2013). Emerging technologies have vast effects on business in both the ways; it is benefiting many businesses as well as it is affecting businesses adversely. To talk about the positive effects of emerging technologies on businesses include the effects on research and development of any company. It helps companies in developing more effective and less expensive research and development processes.

CJUS 310 DB5 Essay Example | Topics and Well Written Essays - 250 words

CJUS 310 DB5 - Essay Example Community structure and the way it is organized has been assumed to be a recognizable factor when researching on the variation between crime rates and the respective communities from where the juveniles reside. High population density, low degree of attachment to the neighborhood, increased urbanization, and extreme residential mobility may worsen the probability of children to decide to engage in criminal acts. Overcrowded living environs, absence of, or limited natural surveillance, poor housing, and physical deterioration by the immediate population also associate with childhood delinquency minds and conduct disorder. Other related external factors in the community structure like poverty may interrelate with negative community characteristics and as a result produce many financial issues that may make children vulnerable to crime. Weak community bonds may also be a root to the inability to resist the penetration and distribution of drugs among ganged-up children, whose minds may be focused on carrying out criminal offenses to either get finances for the purchase of drugs or are just influenced to engage in acts like robbery and rape (Bursik & Webb,

Degree Plan Essay Example | Topics and Well Written Essays - 1250 words

Degree Plan - Essay Example With my current military experience, I have confidence in my ability to remain focused therefore allowing me to accomplish these two long-term goals Concentration I believe the concentration of courses that that I have selected constitute a well-focused, in-depth program that will grant me the ability to perform well in my desired career goal. I started my studies at Mohawk Valley Community College (MVCC), and focused on criminal justice related courses such as Ethics in Criminal Justice, Juvenile Delinquency, and Introduction to Criminal Justice. These courses were introductory level components that have prepared me for more advanced courses at Empire State College. These courses increased my knowledge within the criminal justice field, and they also fit the degree program similar to MVCC. The courses that I selected at Empire State focus primarily on social science related subjects. They include a broad range of subjects within this field which will make me a well-rounded individua l. I have focused heavily on advanced-level courses not only to meet Empire State advanced standards, but to increase my knowledge extensively within the field of criminal justice. The course that I have chosen in my degree program that focuses heavily on terrorism is Terrorism and Homeland. This study will offer me the in-depth focus on terrorism by examining the roles of law enforcement in managing terrorist events. It will also familiarize me with history, politics, and policies of terrorism. Having a subject in terrorism will benefit me if I look into a Homeland Security field as a career goal. In addition, I selected a class on deviant behavior, and it will allow me to explore socially deviant behavior of adults, and youth. General Learning and General Educational Requirements In every degree program, I believe a breadth of learning is necessary in order to become a well-educated individual, instead of being narrow-minded towards education. In my criminal justice program, I fin d it to be extremely important to have the required liberal arts classes to understand the complex nature of the world around me. Throughout life an individual is met with tasks on a daily basis that require a broad-range of learning, and having a variety of liberal arts courses can provide that. For example, when I traveled to many countries and saw ancient buildings, I was unaware of the architectural features these buildings had. I took a class called Western Architecture, and it provided me with the knowledge to understand these magnificent architectural masterpieces. Without this course I would have simply looked past the design aspects. Many of the courses that I have taken, and the ones I selected to develop my degree plan provide me the opportunity to enhance my knowledge and skills in writing, math, history, science, art, and language. During my service in the military I have gained a great deal of knowledge that correlates with some educational aspects at Empire State Coll ege. These courses include Physical Education, Military Science, Ethics, First Aid and Safety, and Principles of Leadership. All of the skills gained from these courses will enable me to become a more productive individual with my desired career choice. Not only does my military education bring breadth into

The Sales Promotion Article Example | Topics and Well Written Essays - 250 words

The Sales Promotion - Article Example They include employment agencies, classified advertisements, web search and other employment placement service sites. The selection is based on key attributes like being self- motivated, having a disciplined work style, ability to close the sale and lastly capability to build a solid customer relationship. Next is the training of the sales team which is done through various programs such as seminars and meetings on Products, Company and Service. Thirdly, there is sales force compensation which is achieved through salaries, commissions, vacations, pensions and even repays for well job-related expenses. Fourthly, there is sales force supervision and subsequent evaluation of their performance for further improvements. Selling is a complex process that involves several steps. First, there is prospecting and qualifying which briefly involves identifying potential customers, then a pre-approach stage which involves knowing more about the needs of customers. Thirdly, there is the meeting of customers for the first time. Then a salesperson has to handle various objections to customer buying, asking the customer for order and finally making a follow-up. Relationship marketing, on the other hand, involves campaigns by aimed at customer satisfaction and retention. The sales promotion program is developed through a number of steps. There is the size of incentive determination and subsequent setting of conditions for participants. Then, a decision is made on promotion and distribution to the sales team.

Movie review 2 Example | Topics and Well Written Essays - 250 words

2 - Movie Review Example It represents crime scenes. The director presents this perception when Paul’s wife and daughter are killed and raped respectively, his boss sends him specifically to New York to fight crime (Brian and Winner, 2003). The role race plays in the film is evident when Kersey kills more black muggers with the intent of increasing the number of the white muggers. Race is used to indicate that most for the criminals in the setting were of the black origin and this necessitated the discriminative killing (Brian and Winner, 2003). Gender plays a significant role of indicating that the muggers targeted women in their criminal activities. This is evident from the killing of Kersey’s wife, rape of Kersey’s daughter and the killing of a young woman at the parking garage. In essence, gender is used to show that, women fall victims of the muggers’ criminal activities. Gender is represented as an indicator of the safety loophole. This implies that women needed more safety measures than their male counterparts (Brian and Winner, 2003). Class plays a key role of enhancing criminal activities. It is represented by drug barons who engage in a fierce competition in selling hard drugs such as cocaine. They kill each other’s accomplices. For instance, Zacharias gang competes with brothers Jack and Romero’s gang. This is an elite class but grossly involved in criminal activities. This leaves the society a rotten and unsafe place for peaceful dwelling (Brian and Winner, 2003). The film reflects the political situation of the society. There is no political willingness to solve the problems facing the subjects. The coordination between the police and the Kersey indicates a rotten political set up. The film reflects the aspects of racism in fighting crime and this extends to the broader perspective of a racist political milieu existing tin the society (Brian and Winner,

The Sales Promotion Article Example | Topics and Well Written Essays - 250 words

The Sales Promotion - Article Example They include employment agencies, classified advertisements, web search and other employment placement service sites. The selection is based on key attributes like being self- motivated, having a disciplined work style, ability to close the sale and lastly capability to build a solid customer relationship. Next is the training of the sales team which is done through various programs such as seminars and meetings on Products, Company and Service. Thirdly, there is sales force compensation which is achieved through salaries, commissions, vacations, pensions and even repays for well job-related expenses. Fourthly, there is sales force supervision and subsequent evaluation of their performance for further improvements. Selling is a complex process that involves several steps. First, there is prospecting and qualifying which briefly involves identifying potential customers, then a pre-approach stage which involves knowing more about the needs of customers. Thirdly, there is the meeting of customers for the first time. Then a salesperson has to handle various objections to customer buying, asking the customer for order and finally making a follow-up. Relationship marketing, on the other hand, involves campaigns by aimed at customer satisfaction and retention. The sales promotion program is developed through a number of steps. There is the size of incentive determination and subsequent setting of conditions for participants. Then, a decision is made on promotion and distribution to the sales team.

A History of World in Six Glasses Essay Example for Free

A History of World in Six Glasses Essay A History of World in Six Glasses by Tom Standage: An Analysis In his book, Standage presents the readers not just an evolution of time and unraveling of history but also the embodiment of people and their culture in the image portrayed by the six types of drink. In this paper, we shall deal with the ramification a certain drink can contribute to the evolution of society. In particular, we shall discuss the role played by these drinks in the economic, political and social aspects of human life. Tom Standage reveals how the six drinks have played certain roles in history. First, he mentions beer as the drink that symbolizes the dawn of civilization. According to him, the farmers in the ancient times planted barley and made beer out of it. Also, â€Å"the guys who built the pyramids were paid in beer and bread. It was the defining drink of Egypt and Mesopotamia. Everybody drank it. Today its the drink of the working man, and it was then as well. This denotes that from the beginning, beer had been part of history and commerce as people used it everyday in their meals, and to celebrate occasions. From this, we can also infer that people used the drink to establish connections or build good relationships. The concept of beer being used as a medium for celebration is similar to the way other prodigious drinks are being served today including the wine. â€Å"Wines may be as old as beer or even older† (Standage 2003). Unlike beer, though, wines are more difficult to produce and preserve. The earlier people used it on special occasions such as weddings and other religious rites. In the Bible, we see different kinds of wine befitting occasions or the people who drank them . Wines also served seemingly as the demarcation line between the rich and the poor, with the first able to afford the more precious and older wines. The history of wine suggests its value in commerce as it was used to trade with other countries for metals, leather and even slaves. Today, wine still marks its place in the important events in society from the simplest family gatherings to grand celebrations of the most important people in the society. Spirits such as brandy and rum were mentioned as drinks associated mostly with sailors and pirates. Although they were consumed limitedly due to their effect, these drinks have also evolved with time as they marked history during the 17th Century in the Caribbean islands with sailors tasked to protect planters from pirates and European enemies. Rum was given as a reward to sailors for the sacrifice they endured aboard, but essentially these drinks helped the crew shake off their hardships and nostalgia, and continue with days ahead. To this day, spirits are still very popular among younger generations as they are mixed with juice and other flavors. Another famous drink that originated centuries ago was coffee. From the Arab Peninsula where it first originated, the aroma and taste of brewed beans have traveled across the world, in every house or establishment that appreciates the warmth coffee can bring. Its popularity can be attributed to the concept of alcohol-free drinks during the Age of Reason in the 18th Century. Today, coffee is loved and enjoyed by billions of people not only for its taste and aroma but also for its anti-oxidant effects. Its caffeine content is said to increase the speed of rapid information processing by ten percent, and a cup of regular (caffeine-containing) coffee after lunch helps to counteract the normal post-lunch dip inability to sustain concentration, aiding alertness. Tea, a drink widely associated with China dates back to as early as the third century A. D. According to Standage, it played a leading role in the expansion of imperial and industrial power of Great Britain for many centuries later. Similar to coffee, it helps workers and those who need to stay alert with its caffeine content, which is why tea or coffee breaks have been part of every business establishment. Remarkable of the 19th Century, the Coca-Cola began was introduced to the market by its inventor, the pharmacist John Stith Pemberton. It has become a symbol of the United States due to its unprecedented sales all over the world among popular drinks today. Notes in history ascertain â€Å"East Germans quickly reaching for Cokes when the Berlin Wall fell, while Thai Muslims poured it out into the streets to show disdain for the U. S. in the days leading up to the 2003 invasion of Iraq† (Standage 2003). The popularity of Coca-Cola also represents the rise of consumer capitalism and instigates the emergence of America as a superpower. Overall, Standage believes that it is globalization in a bottle. Seeing the history of the world in these six types of drink, Standage is able to show us the role that each drink played in economy and society in general. It impresses upon us how each stage in history can be changed or affected by what people drink and how each drink reflects the market it represents. In particular, market technologists and economists can make a good sense out of the pattern rooted out by Standage for every drink. They can take note of the marketability of their product based on the points offered inductively by Standage. As established, these drinks have helped change the economic situations of the countries of their origin. In particular, we see these drinks being used for trade as export products and as factors or images responsible for commercialism and achieving niche in the economic scene. We also see how these drinks have become part of the political systems of the world in the form of symbols of unity or disparity among nations. Furthermore, the six drinks have served as images to represent social status, conventions, and individuality of the people who drink them. While it is commendable of Standage to use these drinks as portals to what developed in history, it may also be wise to look at other drinks that similarly mirror our evolution. In this regard, we may suggest the inclusion of other drinks such as juice, chocolate drinks, and other liquids sold today which are very popular among the youth in the present generation, and which do not necessarily explain political or economic status but simply elucidate on the options people take in response to stimuli in their environment. To give an account of these drinks would complete the details of history of his book, not just centering on the antiquities but also explicating on the modern times. Works Cited Ancient Greece. All About Greek Wine. 2003. 24 November 2007. http://www. allaboutgreekwine. com/history. htm. Coffee and Your Health. Heine Brothers’ Coffee. 24 November 2007. http://www. heinebroscoffee. com/. Handwerk, Brian. â€Å"The World in a Glass: Six Drinks That Changed History†. National Geographic News. 3 October 2003. 24 November 2007. http://news. nationalgeographic. com/news/2005/10/1003_051003_six_drinks. html. Jesus Changes Water to Wine. Biblegateway. com. 1995. 26 November 2007. http://www. biblegateway. com/passage/? book_id=50chapter=2version=31. Standage, Tom. A History of World in Six Glasses. Canada: Doubleday Canada, 2005. The Tradition of Rum and the Sea. The Ministry of Rum. 2003. 25 November 2007. http://www. ministryofrum. com/articles. php.

The Strict Internet Censorship Of China

The Strict Internet Censorship Of China Undoubtedly, the Internet has played an active role in the average Chinese life (Internet Content Control in China, p.3) The Internet is expected to enable Chinese to have more chances to access wide-ranging information sources, which are essential for democracy. As a main way of accessing to information, search engine has played a crucial role in the process of building public sphere in china. According to the survey, in the first half-year of 2010, the utilization rate of search engine among all net citizens has increased by 3%, to 76.3%; the number of users for search engine has reached 320 million and. Since 2009, search engine had entered into a period of rapid development of new cycle. Internet users have applied search engine more frequently and turned to Internet and search engine as to the acquisition of all information in life more (CINIC, 2010). Google is the largest search engine company that supplies global information services in the world. In 2006, Google began to operate google.cn for Chinese public. As a global available search engine, Google can provide more sources outside of china to Chinese. In 2005, 32.9% users would use Google to search information in Beijing of china (CINIC, 2005 , P.11). It is generally agreed that Internet contribute to fostering a virtual space of communication by offering new forms of bonding and solidarity on cyberspace new ways of forging cultural communities in local contexts (Morley, 2000). Specifically, peoples open access to information by using global Internet search engines, such as Google may create a healthier public sphere on cyberspace, which can work as a cultural and social space that should be open, diverse and accessible (Golding Murdock, 1991). To this extent, globally available search engine, such as Google, can contribute to establish public sphere in china. It assumed that Google is playing a positive role to facilitate public sphere in china. However, the situation is contrary. Although Google censored considerably less than the other search engines, it also need to obey the regulation and law of censorship of china. Internet companies all acknowledged filtering out and censoring politically sensitive information due to Chinas restrictive censorship policies. When Google complied with Chinese censorship in order to enter Chinas fast-growing market, it became to the tool of Chinese censorship to control the flow of information. Why google cannot facilitate public sphere in china? In general there are two reasons. First reason is that profit motive makes Google compromise with china. Behind the surface tensions between the Chinese regulatory power and Internet corporations, it can be widely acknowledged that the corporate-Chinese government deal provides considerable financial gains to US technology companies by enabling them to attract Chinese consumers in a lucrative Chinese Internet market with appealing, yet non-controversial material (MDMH, P.411). According to the statistics from survey, china is a considerable large market over world. As a company, Googles main goal is to gain the profit, when face to the economic interest, its responsibility to protect the human rights becomes less important. Googles capability of facilitate public sphere is restricted by the censorship of china. Because of the profit motives, Google have to comply the censorship that is the cost of doing business in china (china dilemma, p.4). For chasing the financial benefit, Googles compromise of Chinese censorship undermine its ability of contribute to form public sphere in china. This new alliance between the two different power groups is based on both state and corporate censorship measures. While the global dissemination of Internet communication operates under fundamental corporate guidelines, such as the free market principle along with the freedom of expression ideology, global Internet information flow is also mediated by local censorship and surveillance policies and political particulars within a social context (MDMH, P.411). Strict censorship of china Once google accepted to censor the information that means googles information are under harsh control. China has a very restrict system of censorship on Internet, which curb google to contribute information to establish the public sphere in china. Chinese government control the flow of information on interentet not only limit network services but also monitor traffic and users (Great leap or long march, p.705). Chine Internet censorship can be divided into two parts, one is regulation and law, and another one is the technologic control. Law and regulation was considered as the internal control of Internet in china. It is impossible to block the use Internet, as a result, Chinese government issued the law and regulation to make the access of information were under the officially control. Chinese communist party (CCP) makes the surveillance on the Internet legal by publishing related regulations and laws. Chinese government published a directive to regulate the use of the Internet in 1996(Great leap or long march, p.705). In 1997, Internet control law was added into Chinese Criminal Law. Since 1995, when commercial Internet accounts were began permitting in china, more and more laws issued to control content of Internet. For instance, Decision of the Standing Committee of the National Peoples Congress on Maintaining Internet Security (2000); Measures for Managing Internet Information Services (2000); Provisional Rules for the Administration of the Operation of News Publication Services by Web Sites (2000); Rules for the Administration of Internet Bulletin Board System Services (2000); Rules for the Administration of Computer Internet Bulletin Board System Services in the Colleges (2001); Interim Provisions on the Administration of Internet Publication (2002)50. Other rules are aimed at Internet cafà ©, state secrecy, network security, and encryption, but they also indirectly have a strong impact on Internet content regulation. Even some rules for infrastructure or connections include provisions on content governance (Internet content control in china, p.18). According to the law and regulation in 2000, the forbidden of sensitive content and the restrictions on the distribution of news aim to control the spread the information that be critical to Chinese government. Moreover, Internet service providers (ISPs) and Internet content providers (ICPs) are required to storage users data to monitor whether user post or access to information that are unapproved by Chinese government (Internet in china). For Internet company, they must get ICP licence that allowed it operate business in china. For example, google has to comply the rules on licences that apply a range of permits. According to that, google are imposed to do self-censorship for filtering keywords that unapproved by CCP. If google do not obey the rules, Chinese government can cancel the licences to prohibit googles right to engage business even accuse google. To put the regulation and law into practice, Chinese government also censor the information by using technical means. Millions of dollars have invested to develop the information technology that distributes the system to limit the accessibility of online resources in china (The china Dilemma, p.3). Chinese government is also implementing its own e-government project which is called Government Online Project(E-government in china, p.3). Internet content filtering in china has been considered as the most complex and sophisticated around the world. Chinese government planed the Golden Shield project in 1998 and started that plan in 2003. It claimed that Golden Shied project employ advanced information technology to safeguard the security of online information and crime combating capacity, which aim to develop efficient police work (Golden shield project). It estimated that Golden Shied project had spent 70 million dollars on research to date, and that the total spending would likely be even more than that. One of the most important parts of this project is the Great firewall of china. The main function of the Great firewall is to block the accessing of forbidden materials on sites outside China. The Great firewall employ newer domain name server IP address filtering, URL keyword filtering, Web Server IP address filtering, HTML Response Keyword filtering, and DNS redirection to achieve the goal of blocking undesirable information. One hand, these technologies including the hardware and software are implemented to prevent police work from attack. On the other hand, the most important role of these technologies is to monitor and filter the flow of information. It is argued that google should reject the self-censorship in china. However, under dual pressure of stringent law and advanced technological control, google faces the dilemma in china. There only two choices for google, one is to do self- censorship, another is to be filtered by Great firewall in china. No matter google chose which side, Chinese government will enforce google to filter the keywords that crucial to public debate and democracy. David Drummond, Googles senior vice president, said that if google do not filter keywords, Chinese government could block even more sites which still disappointed Chinese public. (Google rules, p. 41) This is one of the reasons Google, in 2006, started Google.cn. Among other characteristics, Google.cn was more quickly accessed than Google.com because it filtered out content in- side China, bypassing the Great Firewall. For example, a search for Tiananmen Square on Go- ogle.com results in pictures of the man standing in front of the tank, as well as other websites related to 1989. Google.cn, in contrast, shows tourist sites re- lated to the Square and pleasant looking holiday images. No mention is made of the events of 1989.7 Moreover, if a search for images of the Dalai Lama is made on Google.cn, of the 161 images returned only one is of the Tibetan Buddhist. The same search on Google.com results in 2,030 found images.8 If one lived in China it might be forgiven for thinking many of these historical events and persons never existed (Just doing business or doing just business, p.221). The whole system of censorship on Internet works effectively. Why the Internet can be controlled in china? There are two main reasons behind the phenomena. Political aspect makes the role of Internet in china different from other countries. In general, most of keywords censored are related to politics in china and CCP have opened the diffusion of non-political information. Take the BBC sites as a instance, it can be accessed expect political news. As is know to all, china is not a democratic country that has a unique political environment. CCP has absolute authority to affect the public sphere. Since Republic of China has been established in 1949, CCP have made effort to strength the control of ideology by employing sophisticated censorship. The mainly information from Chinese media are used for propaganda. Internet, especially the searching engine used to be the tool to monitor the public opinion to reinforce CCPs one-party regime. In 1990s, when internet has been introduced in china, it has provided a forum of public debate and democracy for Chinese. Then CCP has relaised the important role of internet and apply law and technology to filter the keyword which risk the authority. As Kellner (1999) argues, Internet can be used as a tool for state power to increase the control or can be used as a tool to establish public sphere. According to that, CCP form authoritarian censorship on interenet to enforce it only to server for Government. In addition, CCP control the flow of information outside china because the fear of against Chinese communist government from west countries. For example, Wei Wu (great leap) claimed that since the end of cold war, Chinese government still worried about those anti-chinese communist government reporters from west might offer information on internet to against CCP. While the internet is global available, Chinese can access some information related to democracy and other west ideology. CCP consider that west ideology can affect the public opinion to endanger one-party regime. To safeguard the surveillance, CCP establish the great firewall to block the sites related to those west ideology about democracy and freedom of speech. Besides the political aspect, china has a lack of fundamental social environment of freedom of speech. Most of Chinese people tend have no sense of freedom of speech. Although scholars like Guobin Yang (the power of the internet in china) argued that more and more online debate and movements about democracy have took place online since 1990, china is lack of the basic to form public sphere on Internet. To begin with, Chinese people educated by Marxist which do not emphasise the importance of freedom of speech. Since 1949, Marxist which is the mainstream ideology in china is deferent from west ideology about democracy. To this extent, Chinese people do not have deep understan of democracy and freedom of speech, which are negative to establish the public sphere. Furthermore, Chinese citizen trend to have more concerns about economy than politicos. Generally speaking, china is a developing country with large population. A number of people in china focus on the developing of economy to improve their level of life condition rather than consider the public sphere. For some Chinese people who are suffering from poverty, the freedom of speech even is a luxury right (Internet content contrl). Future of Google and china Because of hack attack, Google.cn was shut down on 12 January 2010 and visitors are now being redirected to Google.com.hk (google rules). It is believed that Google.com.hk is an appropriate way to solve the problem between china and Google (Google offical blog). Google.com.hk is legal to uncensored and provide more information, yet it would be filtered by Great firewall even it has the risk to be prohibited in mainland of china. As a result, it is difficult to judge that whether google.com.hk can continue to supply information to facilitate public sphere in china. Googles ability to contribute public sphere of china still depends on the censorship of china. David Drummond argued that governments in the West should put pressure on Chinese government to improve the internet enviroment in china(Google rules, p. 35). U.S. government and the European Union have not complained or strongly against Chinas filtering of the Internet. The U.S. Congress has not passed its own laws or resolutions to address the issue of censorship in China. It continues to support business with China (Google china). Nevertheless, Chinese government is under pressure recently and attempting to establish more open and transparent media system. One significant example is the filtering during the 2008 Olympic Games. In 2001, Chinese government promised that there would be no restrictions on journalists in reporting on the Olympic Games (Access controlled, p.468). Although some websites were still blocked, websites containing politically sensitive content were accessible during 2008 Olympic Games. Moreover, most international social media websites were accessible, such as Blogspot, Facebook, and Twitter. Another example is happened in 2010 shanghai expo in china. Computer users can access to most of websites that may blocked before. These two examples indicates that Chinese government has realised that their responsibility to create more open public sphere for Chinese and international public. The open of internet environment just need to be taking gradually in china. Conclusion This emerging public sphere on the Web tends to enable more democratic sharing of information and lead to a new political awareness based on informed civic engagement (Fischer, 2000). However, average citizens are not in a good position relative to both global corporate forces and influential government regulatory regimes in terms of making rules and policies to manage the global flow of cyber- communication. Given that technology brings change, both positive and negative, in relation to social interactions and power dynamics, it should be recognized that technology also involves regulation or restriction by the state or other social forces because the information technology, i.e., the Internet, is not separated from the social and political context in which it is created and operated (Marshall, 2003; Fischer, 2000). The question is no longer how the Internet will affect china; it is how china will affect the Internet (Who controls the internet, p.104).

Uses of Marijuana :: Free Essays Online

Hemp is a very useful plant. The reason why it is illegal today seems an easy question to answer, right? Because of the effects that it causes on the brain and body. Right? Wrong! The reasons why hemp was made illegal were reasons that the public were never exposed to. Before 1883 about seventy-five to ninety percent of the world's paper was manufactured from hemp bast fiber. The United States Department of Agriculture first proposed making paper from hemp pulp in the early 1930's. Although production had to wait until someone invented a machine that would separate the hemp pulp from the fiber cheaply. Meanwhile, Dupont Chemicals, Hearst Paper and Timber, and several other companies had developed a new way to make whiter paper out of trees. Just when they got all their patents and business going in 1936, someone invented the hemp 'decorticating' machine. This threatened to put all the tree companies out of business, because of the fact that hemp paper is cheaper to make. A huge sum o f capital was tied up in making tree pulp paper and shipping it for sale. Most of the tree-paper companies were very powerful and had many connections with the government. So in 1937, they launched a country-wide campaign to put a prohibitive tax on hemp. This was the first 'Reefer Madness Movement' and when we began to call cannabis-"Marijuana". At that time no one knew that marijuana was really cannabis hemp. The only knowledge about hemp that the public knew had been obtained from the many fabricated stories. All the public knew was that it was "the killer weed with roots in hell", because of the supposedly harmful effects that it had on the human body and mind, which by the way have all been reaserched again in depth and the previous conclusions of the effects of marijuana on the human body and mind, have all been disproven. Because of this most American's did not know where their clothes used to come from because synthetic fabrics had just becom popular. The first Levi's blue j eans were made from the hemp plant. I will including the following information in my paper; the many useful uses of hemp as a perspective product for the future, products such as; fiber, rope and twine, canvas, cloth and cotton, how it can replace our dependence on our forests for our paper products, and finally how easily it can be cultivated.

The Fenian Movement :: Essays Papers

The Fenian Movement In 1884 a movement started that changed Ireland forever. The Fenian Movement evolved because of the horrible deeds of King Henry VIII and his durable militia. Britain was trying to govern Ireland, and the people of Ireland fought for the freedom of there country. They didn’t have much money or much military action, on the other hand Britain did. This wasn’t the only reason the Fenian movement occurred though the great potato famine 1845 forced people from there homeland. The Fenian movement was when the people of Ireland were forced from there homeland because of the lack of natural resources and military action by the British. Another aspect to the Fenian movement was that Irish citizens didn’t have much money because they are not industrialized and they have an agricultural economy, which led up to the potato famine. Irish farmers didn’t have enough money to produce potatoes efficiently; this is when the blight occurred. Another branch that led from living in poverty was lack of military supplies. This was a huge problem because they couldn’t protect there country or even there freedom. Due to lack of funds many people migrated over seas to America where they could make money and live a successful life. In Ireland potatoes were the most popular product. â€Å"The potato grew well in Irish soil, producing the high yields that small-pot tenant farmers needed to feed their families and pay their rent†(Michael 1). During the potato famine the farmlands in Ireland were rotting away due to the blight. â€Å"Beginning with 1847, the potato blight left famine and death on every hand; emigration was excessive, and disaffection widespread, yet the British government did little to relieve the deplorable conditions. Goaded by almost unbearable economic distress, the young Irelanders decided to act†(Walker, 2) This led to poverty, migration and even death( how many people). People in Ireland were forced out of there homes to other countries because of the horrible natural resources. Many people starved, and these unfortunate citizens migrated to the United States, Canada, South America, and Australia. Ship-owners packed hundreds of boats to flee from Ireland to English speaki ng countries. Many of the Irish people didn’t even make it to these countries because of the horrible disease typhoid. Another one of the major causes of this horrific problem in Ireland was that British military decided they wanted to take over the Irish government and control the land.

Carbohydrate and Peptide †Based Vaccines: The Way Forward

Abstract Existing treatments and therapies have supported a huge variety of diseases and infections, a significant example being antibiotics. However the increasing presence of multi-resistant bacteria, as well as increased changes observed in the mechanisms responsible for variation in viruses, involving accumulation of mutations within the genes that code for antibody-binding sites (known as antigenic drift), has resulted in these new strains not being inhibited as effectively by those treatments that originally targeted them (Reche, Fernandez-Caldas, Flower, Fridkis-Hareli and Hoshino, 2014). The knock-on effect has been that the bacteria or virus is able to spread more easily, and therapeutic treatments (used after a person contracts a disease), become less effective, unable to work by boosting the host’s own immune system. As a result, it has been recognised that the vaccine offers the advantage of preventing the anticipation of disease occurrence, using advance action to countera ct infection and chronic illness. Prophylactic, and to a lesser extent therapeutic, vaccines are the most cost-effective and efficient alternative to other treatments and prevention of infectious and chronic diseases. They work by causing changes to the T- and B-cells of the adaptive immune system to eliminate or prevent pathogen growth (Plotkin, Orenstein, and Offit, 2013). Going back to the introduction of vaccines more than 200 years ago, these were initially composed of killed pathogens, which although successful, also caused unacceptably high levels of adverse reactions. During the years of research that have since followed, as with the changes observed with antibiotics and other treatments becoming less effective, the need for safer and more effective vaccines has also been acknowledged. In addition, an improved understanding of antigen presentation and subsequent recognition has supported the development of newer vaccine types (Flower, 2013). Equally, whilst many diseases and infections are controlled by vaccines, for some, no vaccines have been developed, including Streptococcus pyogenes, human immunodeficiency virus (HIV) and hepatitis C virus (HCV) (Wang and Walfield, 2005; Barrett and Stanberry, 2009). Efforts to develop new vaccines are discussed in more details, with a focus on peptide-based and carbohydrate-based vaccines. Challenges are also discussed, leading to a summary of the potential direction of vaccination and research, which describes a promising future. Peptide-based vaccines An example of a newer category of vaccine is peptide-based vaccines. Peptides are short sequences of proteins, and diseases/infections use these proteins as part of their attack on the immune system. In many cases, the immune system has the ability to recognise the proteins associated with an attack by disease or infectious causing pathogens and can respond effectively. However as observed with many cancers, HIV, HCV and other conditions, an effective immune response is not triggered, hence the need for newer vaccine developments including those based on peptides, which encompass single proteins or synthetic peptides encompassing many antigenic determinants (B- and T-cell epitopes) (Flower, 2013). Peptide vaccines are a type of subunit vaccine, which presents an antigen to the immune system, using the peptide of the original pathogen, supporting immunity. Such peptide-based vaccines avoid the adverse effects described with traditional whole-organism vaccines (Moisa and Kolesanova, 20 12) with additional benefits also noted (Ben-Yedidia and Arnon, 1997), including: The absence of infectious material An immune response that is specific, focusing only on the targeted epitope, with the induction of site-specific antibodies No risk of an immune attack or cross-reactivity with the host tissues Flexibility, with an ability to modify products accordingly Improved effectiveness in relation to manufacturing on a large scale, and long-term storage where necessary e.g. a pandemic. However, a number of difficulties have been encountered during the development of such vaccines (Simerska, Moyle and Toth, 2011; Dudek, Perlmutter, Aguilar, Croft and Purcell, 2010) including: A short biological activity of peptides due to degradation by enzymes The trigger of a weak immune response when used alone i.e. single peptides Finding optimal delivery systems. As a result, and to overcome the difficulties mentioned above, synthetic peptide vaccines have been developed, on the basis that a greater more accurately targeted immune response will be achieved. Peptide antigens are not immunogenic by themselves, so this has led to investigations into co-administration of subunit peptide antigens with adjuvants (immunostimulants) to increase the peptide-induced responses to corresponding antigens. Appropriate delivery systems and often toxic adjuvants have demonstrated effective immunity, however, although many adjuvants are described in the literature, only a few have been approved for use with vaccines for delivery in humans due to their toxicity and include water/oil emulsions, liposomes, and bacterial lipophilic compounds to offer a few examples (Heegaard et. al., 2010). Incomplete Freund’s adjuvant (IFA) and Montanide ISA (both oil-based) have been used in clinical trials. Focusing on liposomes as another example, researchers have demo nstrated that use of lipid core peptide (LCP) technology (lipidation of peptides) improves the effectiveness of a self-adjuvanting vaccine delivery system, targeting a specific disease and triggering an effective immune response. This system provides a promising platform for human vaccine development (Zhong, Skwarczynski and Toth, 2009; Moyle and Toth, 2008). In animal models, peptide vaccines have been effective in generating the required immune response, and during recent years, peptide-based vaccines have advanced from animal models and pre-clinical studies, to human clinical trials (Yang et al., 2001). Although currently, all known peptide vaccines under development for humans remain at the stage of clinical trials, these trials should build on the promising evidence resulting from research to date of the potential application of vaccine candidates based on a LCP system, as well as other strategies. Prevention of not only many infectious diseases including hepatitis C virus, mal aria, human immunodeficiency virus and group A streptococci), but also for cancer immunotherapy and improved allergen specific tolerance, remains an exciting, and very real possibility. Carbohydrate-based vaccines The development of vaccines based on carbohydrates not only has quite a history, but is also an area that is fast moving in the current research world. The literature provides evidence as far back as the early 1900s where researchers discovered a connection between type-specific polysaccharides and the induction of antibodies being developed against certain types of pneumococci (Francis and Tillett, 1930). This was confirmed by evidence of pneumococcal capsular polysaccharides being used as vaccines, providing effective and long lasting immunity (Heidelberger, Dilapi, Siegel and Walter, 1950). However despite these early findings, the discovery and success of other treatments such as antibiotics and chemotherapeutics led to this area of research being put on hold. As mentioned earlier however, due to increased resistance to existing treatments such as antibiotics, coupled with the recognition for a need of newer treatments including improved vaccines, renewed interest into preventive vaccines has resulted in novel approaches, which include carbohydrate vaccines. Vaccines are commonly made from weakened pathogens, or, as we now know, other approaches also use immunogenic proteins or polysaccharides. Carbohydrates have been the centre of attention in the research field of vaccination because not only do they exhibit more stability than proteins, but they have roles in both physiology and pathophysiology, including cell interaction and signalling, inflammation, pathogen host adhesion/recognition, to name a few examples (Doshi, Shanbhag, Aggarwal, Shahare and Martis, 2011). During the last ten years or so, they have been used as adjuvants, as carriers for protein antigens to aid immunotherapy, and as targets for vaccines against bacteria. Additionally, as observed with DNA and proteins, carbohydrates are now recognised as biopolymers also, playing a role in many molecular and biological activities (Doshi et. al., 2011). These discoveries, partnered by an improved u nderstanding of the immune system and the identification of specific and relevant carbohydrate structures, led to the development of glycoconjugates, which in turn led to carbohydrate vaccine development (Holemann and Seeberger, 2004). Glycoconjugates are present in the surfaces of cells, as well as in the surrounding extracellular matrices and connective tissue. Therefore both the identified structure and presence of glyconjugates, plus the role they play, means they are a suitable basis for the development of new vaccines. Induction of protective antibodies is key to an effective immune response as a result of a vaccine, and as with peptide vaccines, challenges have been evident in the research to develop effective carbohydrate vaccines, including the following: Glycans struggle to effectively induce protective antibodies Carbohydrates have a low immunogenic impact by themselves (as observed with peptides). There are two main carbohydrate vaccine types: 1. Natural carbohydrate vac cines: these include small amounts of impurities 2. Synthetic carbohydrate vaccines: these are produced with no contaminants, and are cost-effective due large-scale production. Synthetic carbohydrate antigens used to develop vaccines have triggered immune responses in clinical studies and are favourable given the risk of adverse effects with natural vaccines. Four crucial aspects need to be considered for the design of carbohydrate-based vaccines (Astronomo and Burton, 2010): The antigen source: glycan antigens are diverse, ranging from large polysaccharide capsules, to small monosaccharides, to oligosaccharides, all of which have been shown to be adequate for preparation of vaccines. The carrier: this is most often proteins, although other materials have been investigated, with the aim of ensuring that the link between the antigen and the carrier is specific. The method of conjugation (or ligation): protein conjugates, lipid conjugates and polyvalent scaffold conjugates have been d eveloped. The success of a conjugate vaccine depends partly on the method of conjugation employed. This should be simple and efficient, as well as causing minimal distortion to the individual components involved, with many differing techniques used (Zou & Jennings, 2009; Ada and Isaacs, 2003). The choice of adjuvant: required to improve immunogenicity of the carbohydrate antigens being targeted, with a limited choice approved for use in humans. Examples of diseases targeted by carbohydrate-based vaccines The discussion will now move on to the use of carbohydrate-based vaccines in three disease areas: Group A Streptococcus (GAS), HIV/AIDS and Haemophilus influenza type b. GAS The need for a safe, effective, affordable and practical vaccine against GAS (also known as Streptococcus pyogenes), has been recognised for many years, as has the research into a vaccine against this disease, given the global burden on health that this disease causes in particular in less developed countries. More than 500,000 deaths result from the GAS each year, with the bacteria causing a range of both less complicated and life-threatening illnesses (Carapetis, Steer, Mulholland and Weber, 2005). The diversity of GAS strains is the major challenge for the development of an anti-GAS vaccine, with more than 100 different strains identified, of which the genetic sequence for several different strains have been determined (Johnson and Pinto, 2002). Rese arch has identified that GAS bacteria contain a surface polysaccharide made up of long, repetitive polysaccharide chains. The conserved and constant arrangement of these chains suggests conjugate vaccines to be an attractive and achievable option, with animal models supporting this theory (Cunningham, 2000). Synthetic carbohydrate vaccines, although only studied in a limited set of GAS infections, have demonstrated a protective immune response (Robbins et al., 2009). In addition, some areas of research have focused on the molecular analysis of a surface protein labelled the M protein, which is encoded by the emm gene. This particular gene has been found to be the major cause of GAS related clinical manifestations (Smeesters, McMillan and Sriprakash, 2010). These findings have allowed a greater understanding of the functioning of specific proteins responsible for the virulence of the disease, which in turn, supports the development of potential GAS vaccines. Vaccine prevention of GAS and the resulting symptoms and complications has been a goal of researchers for many years. A number of vaccines have been in research development to offer protection against GAS, with the research vaccine strategies focusing on either M protein, or non-M protein antigens (Smeesters, 2014). However only those vaccines that use the M protein as the antigen have progressed to clinical trials (McNeil et. al., 2005), and have included conserved antigens coverage across the many strains of GAS, a type-specific vaccine based on the N-terminal portion of the M protein, and a recombinant vaccine that reached phase II clinical trials (Pandey, Wykes, Hartas, Good and Batzloff, 2013; Bauer, 2012). However no vaccine has currently reached licensing and so the diseases caused remain uncontrolled in many areas, with reviews covering the research suggesting that even those vaccines developed with the aim of providing large coverage of GAS strains, these vaccine might achieve acceptable coverage i n developed countries, but in less developed countries where the disease burden is much greater, the positive impact of the vaccines would be much lower due to a greater strain diversity (Smeesters, McMillan, Sriprakash, and Georgousakis, 2009; Steer, Law, Matatolu, Beall and Carapetis, 2009; McMillan and Sanderson, 2013). Equally, antibiotic treatment is either impractical with regards to implementation (specifically in less developed countries) or ineffective. One research group targeted the bacteria by synthesising a new self-adjuvanting vaccine candidate, incorporating a carbohydrate carrier and an amino acid-based adjuvant, resulting in successful synthesis and characterisation of the vaccine candidate. This may contribute to the identification of a safe and effective vaccine against GAS in the future (Simerska et. al., 2008; Simerska, Lu and Toth, 2009). HIV/AIDS One of the main challenges researchers have faced within the field of vaccine development against HIV/AIDS, is that the virus surface is covered with layers of glycans, which conceal underlying viral antigens that are potential good targets in the production of vaccines (Scanlan, Offer, Zitzmann, and Dwek, 2007). They are produced by the host cell, which makes the virus appear as â€Å"self† resulting in no attack being triggered by the host immune system. The layers of carbohydrate also contain mannose residues, making these another potential target for a vaccine aimed at preventing HIV infection, whereby lectins preferentially bind to ? 1-2 linked mannose residues. Such lectins are being investigated as possible therapeutic tools (Tsai et al., 2004) although the fact that lectins are often toxic needs to be researched further to avoid the host immune system damaging host cells. Indeed, other drugs that are known to inhibit synthesis of carbohydrates only have this effect at often toxic concentrations to cause antiviral activity. Another strategy based on the same principle of developing a carbohydrate vaccine, is the identification of antibodies that again recognise and bind to glycans. (Scanlan et al., 2002, Scanlan et al., 2007). The antibody appears to recognize these glycans because although they belong to the host, they are arranged in a â€Å"non-self† manner (Scanlan et al., 2002; Scanlan et al., 2007), making the production of effective ant-HIV vaccines a real possibility, in addition to vaccines for other diseases such as cancer (Galonic and Gin, 2007). Studies have also been described using immune enhancing adjuvants, carrier peptides such as keyhole limpet hemocyanin and altered glycan structure constructs that support immune recognition in the development of vaccines against cancer (Galonic and Gin, 2007). These same strategies are being used in development of possible HIV vaccines, where antibodies target self-carbohydrates arranged slightly differently on cancer cells and HIV-infected cells, in comparison to healthy cells. (Galonic and Gin, 20 07). These approaches have not as yet led to clinically effective vaccines, but it is clear that antibodies that strongly bind to carbohydrate antigens on, for example, prostate cancer cells, have been generated (Slovin et al., 2003) and this appears to be a highly promising approach. Further exploration is required based on the carbohydrate coat of the virus, which may lead to improved prevention treatment of HIV. Haemophilus influenza type b The first synthetic vaccine for human application was developed in 2003 for protection against Haemophilus influenza type b vaccine, not only providing protection against this bacterium, but also against all the associated diseases it causes ranging from meningitis, septicaemia, pneumonia and arthritis (Doshi, Shanbhag, Aggarwal, Shahare and Martis, 2011). Indeed this bacterium is the leading cause of serious illnesses in children under 5 years worldwide. The majority of strains of Haemophilus influenza are non-encapsulated, and are lacking in any carbohydrate polysaccharide protective structure, as opposed to the GAS bacteria and HIV virus described earlier. This structural information armed researchers with the knowledge that carbohydrate polysaccharide conjugate vaccines would be required to ensure the development of an effective vaccine (Verez-Bencomo et. al., 2004). As a result, carbohydrate-based vaccines have been licensed for protection in humans against haemophilus influenza type b, using oligomerization and a carrier protein (Doshi et. al., 2011).Evidence of progressTo end this section of the discussion, several conjugate polysaccharide carbohydrate vaccines are now well into pre-clinical/clinical development, or have been licensed and are now commercially available. Examples of licensed vaccines include the following (Astronomo and Burton, 2010): Haemophilus influenza type b (Hib) – 4 carbohydrate-based vaccines are licensed via 3 different pharmaceutical companies: ActHIB and Hiberix; Pentacel; PedvaxHIB; and Comvax Neisseria meningitides A, C, Y and W-135 – 2 carbohydrate-based vaccines are licensed via the same pharmaceutical company: Menactra; and Menomune-A/C/Y/W-135 Salmonella typhi – 1 carbohydrate- based vaccine is licensed: TYPHIM Vi Streptococcus pneumonia variants – 2 carbohydrate-based vaccines are licensed via 2 different pharmaceutical companies: Prevnar; and Pneumovax 23. Examples of carbohydrate-based vaccines in development include the following, where the disease is described in addition to the phase of development (Astronomo and Burton, 2010): Breast cancer – with 1 vaccine at the preclinical phase and a second at phase I Prostate cancer – 4 vaccines are in development at the preclinical, phase I and phase II stages HIV-1 – 1 vaccine at the preclinical phase Group A streptococcus – 1 vaccine at the preclinical phase Group B streptococcus – 1 vaccine at phase II. Conclusion It is fact that vaccines have had a major role to play in the success of preventing and treating many diseases, however many challenges remain. Diseases exist for which no effective vaccines have yet been discovered, including HIV/AIDs. In addition, diseases that have been controlled by vaccines in some parts of the world continue to affect the lives of people adversely in other areas where infrastructures for vaccination are poor/non-existent. Continued research is necessary to develop vaccines not only for those diseases with no vaccine available, but also to improve the effectiveness of existing vaccines. In addition to research focusing on novel and promising approaches such as carbohydrate and peptide based vaccines, efforts also need to concentrate on areas such as lower cost, more convenient delivery of vaccines, and longer-term protection. The future direction of research in this field has become focused with the help of new evidence-based information and promising data. The advent of synthetic peptide-based and carbohydrate-based vaccines signified a new era for vaccines, over-taking traditional treatments and vaccines which have become either ineffective or only offer short term protection. As the discussion demonstrates, a number of vaccines are already successfully protecting humans against some pathogens and disease, with the potential for further vaccines to follow. 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