Pragmatism, Empiricism and David Hume Essay Example for Free

Pragmatism, Empiricism and David Hume Essay Pragmatism is based on the philosophy that ideas must be tested and re-tested, that experiences dictate reality. Pragmatists also believe in no absolute truths or values existing. David Hume argues that, no proof can be derived from any fact, of which we are so intimately conscious; nor is there anything of which we can be certain, if we doubt this (Treatise 2645). Humes empiricist ideals were roots to early pragmatic thought, by way of the theory that, in our reality, nothing is certain and everything that can be sensed must be constantly qualified to find a place in reality. Humes position on our experiences deciding our veracity follows the school of pragmatism by staying away from any conclusive ideals. Thus, his angle on empiricism melds with pragmatism on the level of determining ones selfs existence. Similar to Descartes, he explains that even, and more often than not as per constant perception, metaphysical experience can mold ones identity. And were all my perceptions removed by death . . . I should be entirely annihilated, nor do I conceive what is farther requisite to make me a perfect nonentity (2645). Based so heavily in perception, he further deduces that when insensible during sleep and all perception of environment lies dormant, existence may halt (2645). Hume speculates most closely on miracles and opens his essay with the stance that, A miracle is a violation of the laws of nature . . . the proof against a miracle, from the very nature of the fact, is as entire as any argument from experience can possibly be imagined (Enquiry 2647). He continues throughout his essay, supporting his claim and also breaking down Christianity, highly-based in such phenomena, proving the impossibility of the existence of miracles. This trend is something a pragmatist would argue against, firmly believing in there being nothing absolute. Yet, despite his resistance he concludes, whoever is moved by faith . . . is conscious of a continued miracle in his own person . . . and gives him a determination to believe what is most contrary to custom and experience (2650). This statement, although a bit contradictory to his thesis, appeases to pragmatist thought, allowing for an explanation to those who are still determined to believe in miracles and the like and allows for them to own an identity under his definition. It is at this end where his level of pragmatism veers from Charles Peirce to William James end of the spectrum. Humes doctrine, were it truly classified as pragmatism, is all-encompassing and goes beyond pure knowledge shaping the self. Hume utilizes experiences of every kind as an influence in realitys perpetual state of progress and even further takes on the pragmatist protocol by denying religion that believes in an all-knowing entity. This Agnostician point-of-view is what further fuels Humes philosophy and persists in categorizing him as a pragmatist. In his efforts to liken the mind to a theater he breaks down identity to a simplistic nature. The mind is a kind of theater, where several perceptions successively make their appearance: pass, re-pass, glide away, and mingle in an infinite variety of postures and situations (Treatise 2645). Hume believes all concepts to be greater, complicated and more intricate combinations of simpler forms. Like individual ingredients baked into a cake, everything can be broken down into smaller, easier to understand parts. These many pieces or ideas fit together to create perception and thus, identity which is constantly evolving, finally leading to pragmatism. Hume would likely have subscribed to such a school of thought, the more developed formula. It seems, though, that he had the roots within his empiricist theories and the continuing progress would have led Hume down that path.

The Ethical Dilemmas That Social Workers Face Social Work Essay

The Ethical Dilemmas That Social Workers Face Social Work Essay This essay will look at how social workers address ethical dilemmas in their work with service users and carers. This will be evidenced in case examples illustrating how the codes of practice and codes of ethics guide social work decisions while making them accountable for their work. When working with ethical dilemmas social workers have to understand the origins of these values and codes. Taking into account their own personal values and being aware of how these could influence their decisions. Values and ethics are one of the most important characteristic of an individual the fundamentals define who we are and what we believe (Banks, 2001). Whether individuals are consciously aware of them or not, every individual has a core set of values and ethics. Values are socially constructed moral codes that guide and control our actions within the social world (IFSW). Values and ethics start to develop from birth and are mainly developed by major influences in an individual life. Factors of culture, religion and many more affect our beliefs and ethics. According to Banks (2001, p.6) values are particular types of belief that people hold about what is regarded as worthy or valuable, values determine what a person thinks he ought to do. Social work values are based on the principal of respect for persons which comes from the Deontological approach of German philosopher Immanuel Kant (1724-1804). From these writings Biestek a Catholic priest developed seven principles for effective practice. Kantian principles are individualisation, purposeful expression of feelings, controlled emotional involvement, acceptance, non-judgemental attitude, service user self-determination and confidentiality (Shardlow, 2002). Although Kantianism is primarily focused on the sense of peoples duty, critics have argued that the perspective gives no allowance for compassion and sympathy to motivate peoples actions. Furthermore, Kantian has a lack of guidelines when dealing with conflicting requirements. Kants moral philosophy has been influential in the values and ethics of social work, in particular respect for people and self- determination. These philosophical underpinnings are a major influence in the social care profession. On the other hand Utilitarianism believes that action is right if it generates, or tends to generate the best possible outcome for the majority of people that are affected by that action. Utilitarianism is a form of consequentialism where the rightness of an action is determined by its consequences. There are three main types of utilitarianism act, rule and preference. Act takes into account the individual circumstances, maintaining that the action is good if it generates the best possible outcome in a particular situation. Rule is concerned with the amount of good that a moral action produces, conforming to a rule or law. The rule or law is correct and is determined by the amount of good that is generated when the rule is followed. Preference is one of the more popular forms of utilitarianism it takes into account peoples preferences. The moral action is right if it produces a satisfaction of each persons individual desires or preference (Banks,2001). All of these are open to interpretation and will mean different things to different people, which is why social work codes should be referred to. Social work codes set out an expected code of conduct that social workers have to comply with in order to gain the trust of the public so that service users are informed of what they can expect from their social workers. Protect the rights and promote the interests of service users and carers the codes are as follows: Strive to establish and maintain the trust and confidence of service users and carers, Promote the independence of service users while protecting them as far as possible from danger or harm, Respect the rights of service users whilst seeking to ensure that their behaviour does not harm themselves or other people, Uphold public trust and confidence in social care services, Be accountable for the quality of our work and take responsibility for maintaining and improving our knowledge and skills. The COP form part of the wider package of legislation, practice standards and employers policies that social care workers must meet. When codes are not adhered to there can be serious repercussions involved for all (CCW, 2002). Social works professional values, as described in the British Association of Social Workers (BASW) code of ethics (COE), including respect for all persons including service users beliefs values, culture, goals, needs and preferences, relationships and affiliations, and a commitment to social justice, including the fair and equitable distribution of resources to meet basic needs.(BASW, 2002, 3.1, 3.2). These are a set of moral principles used to set standards which regulates the social work profession. These offer a general guidance and as yet carry no sanctions if broken (Shardlow, 2002). An ethical code also contributes to the strengthening of professional identity. They add clarity to the tasks and should lead to greater ethical observance within the organisation, but the primary objective of the COE is the protection of the clients (Banks, 2001). Ethics are generally distinguished in three different ways by philosophy, meta-ethics, normative ethics and descriptive ethics. Meta-ethics seeks to understand the nature of morality, moral judgements and moral terms such as good, bad and duty. Normative ethics endeavours to answer moral questions, such as what is the right action to take in a particular situation or what is the right direction to take? Descriptive ethics examines how individuals moral opinions and beliefs reflect their behaviour and attitudes towards it (Bowles, 2006). A good social worker needs to be aware of the societal and professional values underlying his or her work so as to empower individuals, families and communities. Both Anti-oppressive practice and values are embodied in the BASW code of ethics (BASW, 2012). Parrott (2006) describes Anti-oppressive practice (AOP) as a general value orientation towards countering oppression experienced by service users on such grounds as race, gender and culture. AOP are also values of working in partnership and empowerment. It is also a way of linking our lived experience with the categories of the relations of ruling (Parrot, 2006). While Thompson (2001) saw oppression as an inhuman or degrading treatment of individuals or groups; in hardship and in justice brought about by the dominance of one group over another; the negative and demeaning exercise of power. Oppression often involves disregarding the rights of an individual or group and this is a denial of citizenship. Social work is often seen as the caring profession who work with service users who need help. Every service user is unique and very social worker is an individual who uses their own lived experiences and to be an effective helper needs insight into her own formation with its potentials for strength and weakness (Clark, 2011). At the core of this is what service users expect of social workers a relationship that is built on trust, being open and honest with each other and achieved by communicating in a clear way that service users understand (Care Council for Wales, 2002, 2.1 2.2) as well as committed, reliable and punctual. Social workers rely on traditional values of confidentiality, acceptance and user self-determination while being non-judgemental in order to gain the trust of service users. These core values are not unique to social work but shared with other caring professions in medicine, nursing and counselling (Banks, 1995). Values have a variety of meanings referring to one or all of moral, political or ideological principles, religious, beliefs or attitudes. However the social work context uses values to mean a set of fundamental moral/ethical principles by which social workers show commitment. While moral judgements promote the satisfaction of human needs and happiness and apply to all people in similar circumstances. On the other hand ethics refers to the study and analysis of right or wrong and good or bad in social work practice. Ethical dilemmas leave social workers using careful consideration to choose between two unwelcome alternatives relating to human welfare (Banks, 1995). Having choices does not make the decision any easier and social workers have to take responsibility and accountability for the outcomes of any decisions they make. Decisions are made by conducting investigations with both the legal and moral rights of all parties involved being taken into account. Societal values and norms are often reflected in laws, although there are some laws which we may regard as immoral the immigration laws being one. How we interpret the law is influenced by our values and ethical principles (Banks, 1995). Social work involves balancing the complexities between ones own moral integrity to the user, society and agency. The ability to analyse a situation and make the best decision is a critical skill which involves recognising our beliefs and behaviours and how they influence our ideas and actions. These values are derived from our culture and social norms and can change over time and across cultures. Therefore social workers need to maintain and improve their knowledge and skills in order to protect the learning and development of others (CCW, 2002, 6.8). Codes of practice(COP) guide and protect service users not be telling them what they can or cannot do but by establishing a professional identity for workers who agree to work in a trustworthy, honest, skilled and respectful manner (Bowles, 2006). However many believe that misuse of codes can be dangerous and cause unethical actions in particular in Western Australia in 1991 emergency foster care was sought for a 4 year-old girl while her mother was in hospital. The worker of a non-government agency placed the girl in an approved foster home which they frequently used. In the home was a 15 year old youth who was a ward of state who held a prior record for sexual offences against young children. The home also had another young foster child and a 4 year-old grandchild of the foster family. The social worker who approved the foster home for the youth and foster carers were unaware of the youths sex offending history. Although his history was known by the youths previous foster carers and 4 days after the girl was placed she died from being raped by the youth (Bowles, 2006, p.78). This illustrates the issues that arise when prioritising confidentiality over client safety and welfare when applied out of context. While the foster-carer is not a professional and does not have to abide by the COP she is guided by a moral code of ethics. Therefore confidentiality can be broken when it is considered the information puts either the client or others at harm. The foster-carer is a part of a team and a member of a child care agency so there would be employers policies and procedure that would have guided this ethical dilemma. Social workers have a responsibility to maintain the trust and confidence of service users and carers by respecting confidential information and explaining agency policies around confidentiality (CCW, 2002, 2.3). Postmodernist believe that there is no single truth and that ethics have no relevance in todays society, as they do not replicate the numerous realities of the same society, and ignore peoples individual perspectives and interpretation. Omitting cultural diversity and reinforcing the oppressive and dominant voices of the most powerful. Furthermore they are rarely used when making ethical decisions so they are considered irrelevant (Bowles, 2006). As in the above example there would have been a number of other professionals involved with the youth such as youth offending team and medical professionals so this is a prime example of lack of information sharing and poor communication as the new foster-carers should have been made aware of the issues on a need to know basis. Below are further examples of some of the ethical dilemmas that social workers face every day: An Asian woman with 5 children under the age of 6 years, who has fled a violent husband but still gets harasses by him. Has been locking up her children in the house and going out for help or a break. One of the workers on the Asian Womens Project she has recently joined to help with her feelings of isolation has discovered this. The worker has spoken with the woman explaining the risks and implications of her actions. However the woman has continued to leave the children unattended. The worker eventually informed social services as she felt the welfare of the children was paramount and she had repeatedly discussed the risks and implications of her behaviour including the British Laws and her responsibilities as a social care worker (CCW,2002, 3.2 3.8). The worker felt the dilemma was due to the view that generally social services and other agencies have often been insensitive the holistic wellbeing of the Asian women and fail to take into account their life experiences, religious a nd cultural background (Banks,2012.p.156). (BASW, 2002, 2.1,4, 2.2,5) A social worker who has been involved in admitting a woman to hospital for 28 days under the Mental Health Act starts to notice deterioration in her physical health. The woman then dies from pneumonia. The social worker felt that the deterioration in her physical health was due to the medication she received. Although at the time he felt unable to question the consultants and trusted that the hospital was the best place to pick up on any serious physical problems (BASW, 2002, 2.2,4). This is often attached to a hierarchy of power where the social worker felt the consultant was in a higher position and had more medical knowledge so was better equipped to make the decision. However in hindsight the social worker felt that he should have questioned the treatment before renewing the section for six months. While the social worker acted within the law and according to agency rules. Did he have a moral responsibility to question the diagnosis? (Banks, 1995, p.150). Also social workers shou ld maintain clear, impartial and accurate records and provision of evidence to support professional judgements. A young pregnant woman tells her community health counsellor that she will seek to have her child circumcised because a girl cannot be offered for marriage if she is not clean. The woman explains that she was also a subjected to Female genital mutilation (FGM) in her country of origin. The woman is aware that the practice is illegal and that she would have to go to a backyard operator in her community to have it done. While the counsellor is not a social worker she would still have to abide by the rules of confidentiality and this would have been explained to the woman at the beginning of the counselling sessions (CCW, 2002, 2.3 BASW,2.3,5). The counsellor should also explain the penalties for breaking the law including the law on child abuse. However it would be more beneficial to engage the young woman with others from her community who are endeavouring to break out of traditional roles who can provide her with support. Social workers have a duty to support service users rights to control their lives and make informed choices about the services they receive, whilst respecting diversity and their different cultures and values (CCW,2002, 1.3, 1.6). Furthermore social workers must promote the independence of the service user this is done by identifying and providing information and support enabling her to make informed choices. The social worker also has a responsibility to the unborn child. The social worker can prevent the harm to the mother by making her aware of the law regarding FGM which is illegal in this country, which is why no hospital will perform it. She also has to make her aware of the consequences of her actions that she could have her child removed or face imprisonment. The social worker can help prevent harm to the child by putting her mother into contact with others from the same community who could help support her make the right decision (CCW, 2002, 3). In modern day society social workers have to work as part of a multi-disciplinary team and at the core of this is information sharing so that everyone is responsible for the health and welfare of service users. As with any dilemmas guidance and support should be discussed with the social workers manager. While dealing with such ethical dilemmas social workers have to be aware of their own personal values and make sure that they do not influence the decisions that they make and while we may not always choose the options given for ourselves it does not mean that they are wrong (Bowles, 2006). The social work role is about empowering the user by providing the service user with the information, resources and support they need to make an informed choice and be prepared to accept the consequences. Many believe that ethical dilemmas in social work may be related to ideological issues. For example to what degree are the public society responsible for an individuals situation and how much responsibility should an individual take for their own situation. Social workers are often seen as agents of social control. This can lead to domineering and coercive practices where social workers dealing with marginalised groups or cultures can mistake their emotional reactions for firm moral truths (Bowles, 2006). While showing tolerance and doing nothing brings us back to the central tenents of ethical social work. As the above examples show the contents of the codes of practice are very general and therefore provide little help to social workers or service users when determining how social workers behave towards client. As in the above examples its does not provide the answer to Is it the social workers duty to inform the police if they discover that the service user has committed a crime? (Shardlow, 2002). The codes do however outline how social workers should work and interact with service users. Below is an example of when a social work student crossed these boundaries. A social work student is allocated to the case of two children siblings who live with their parents. The social worker has access to confidential information about the family which was given to her by the mother who herself is a vulnerable adult. During her placement the social work student meets the childrens father in a night club and starts a relationship with him. She even left the children stay at her home while the mother was in hospital. The social worker did not inform her employers of this relationship. The relationship with the father is compromising her judgement, and the relationship between service users and social workers is about meeting the needs of the client not their own needs. The codes of practice state that as a social worker, you must uphold public trust and confidence in social care services (CCW, 2002, 5). It goes on to state that you should not exploit service users in any way (CCW, 2002, 5.2), abuse their trust or the access you have to personal information (CCW, 2002, 5.3) or behave in a way, outside of work which would call into question your suitability to work in social care services (CCW, 2002, 5.8). In addition social workers must inform their employer or the appropriate authority about any personal difficulties that might affect their ability to do their job competently and safely. What are evident from the above examples are the complex issues that face social workers in their everyday practice. The core foundations of this work are values and ethics and while these can often conflict due to the variety of sources that social workers are accountable for instance the service user, carer and employer. The social worker must be prepared to explain and justify their actions and be open to scrutiny if they are to work in a professional manner (Clark, 2005). Values and ethics are a combination of thoughts and feelings which are used to weigh up the pros and cons of an argument and help make an ethical decision. However there needs to be distinctions on how to apply social work values and ethics into their professional work, without causing personal conflict. Above all the social worker must remain non-judgemental, and stay focused on the task ahead while upholding public trust in social care services.

Reinforced Concrete Frame Structure Advantages

Reinforced Concrete Frame Structure Advantages Reinforced concrete is one of the most widely used modern building materials. Concrete is artificial stone obtained by mixing cement, sand, and aggregates with water. Fresh concrete can be molded into almost any shape, which is an inherent advantage over other materials. Concrete become very popular after the invention of Portland cement in 19th century. However, its limited tension resistance prevented its wide use in building construction. To overcome this weakness, steel bard are embedded in concrete to form a composite material called reinforced concrete. Developments in the modern reinforced concrete design and construction practice were pioneered by European engineers in the late 19th century. At the present time, reinforced concrete is extensively used in a wide variety of engineering applications. The worldwide use of reinforced concrete construction stems from the wide availability of reinforcing steel as well as the concrete ingredients. Unlike steel, concrete production does not require expensive manufacturing mills. Concrete construction, does, however, require a certain level of technology, expertise, and workmanship, particularly in the field during construction. In some cases, single-family houses or simple low-rise residential buildings are constructed without any engineering assistance. The extensive use of reinforced concrete construction, especially in developing countries, is due to its relatively low cost compared to other materials such as steel. The cost of construction changes with the region and strongly depends on the local practice. As an example, a unit area of a typical residential building made with reinforced concrete costs approximately $100/m ² in India, $250/m ² in Turkey, and $500/m ² in Italy. With the rapid growth of urban population in both the developing and the industrialized countries, reinforced concrete has become a material of choice for residential construction. Unfortunately, in many cases there is not the necessary level of expertise in design and construction. Design applications ranges from single-family buildings in countries like Colombia to high rises in China. Frequently, reinforced concrete construction is used in regions of high seismic risk. Introduction Steel reinforced concrete is a specific type that has had strong steel rebar or fibers added to it while wet, creating a very strong type of concrete that is able to withstand almost anything when it has dried. Because the result of using steel reinforced are so good for the strength of the building, most modern building today use steel reinforced concrete in the construction process. By adding thin steel bars to concrete can increase the strength of the concrete, making it better to use in variety of application. Today, many of the buildings located nations use reinforced concrete to make the buildings stronger and better able to in industrialized withstand the ravages of time and the weather. Reinforcing the concrete that will be used on the buildings add tensile strength to the concrete, making it much stronger and more flexible that regular concrete, which helps prevent cracking and breakage. Steel reinforced concrete can be used in a number of building applications, including fl oors, beams, supports, walls, and frames. Steel reinforced concrete is a concrete in which steel reinforcement bars, plates or fibers have been incorporated to build up a material that would otherwise be fragile. If a material with high strength in tension, such as steel, is placed in concrete, then the composite material, reinforced concrete, resists compression but also bending, and other direct tensile action. A reinforced concrete section where the concrete resists the compression and steel resists the tension can be made into almost any shape and size for the construction industry. Reinforcing Steel Before placing reinforcing steel in forms, all form oiling should be completed. As mentioned earlier, oil or other coating should not contact the reinforcing steel in the formwork. Oil on reinforcing bars reduces the bond between the bars and the concrete. Use a piece of burlap to clean the bars of rust, scales, grease, mud or other foreign matter. A light film of rust or mild film is not objectionable. Rebars must be tied together for the bars tore main in a desired arrangement during pouring. Tying is also a means of keeping laps or splices in place. Laps allow bond stress to transfer the load from one bar, first into the concrete and then into the second bar. Advantages Behaviour Materials Concrete is a mixture of cement, stone aggregate, and small amount of water. Cement hydrates from microscopic opaque crystal lattices encapsulating and locking the aggregate into a rigid structure. Typical concrete mixes have low tensile strength. Steel, is placed in concrete, then it will not only resists compression but also bending, and other direct tensile actions. Steel also made the bonding of the aggregate in a concrete better. Physical characteristics of steel reinforced concrete: The coefficient of thermal expansion of concrete is similar to that of steel, eliminating internal stresses due to differences in thermal expansion or contraction. When the cement paste within the concrete hardens this conforms to the surface details of the steel, permitting any stress to be transmitted efficiently between the different materials. The alkaline chemical environment provided by calcium carbonate causes a passivating film to form on the surface of the steel, making it much more resistant to corrosion than it would be in neutral or acidic conditions. Common Failure Modes of Steel Reinforced Concrete Conventional steel reinforced concrete can failed due to inadequate strength, leading to mechanical failure, or due to a reduction in its durability. Corrosion and freeze may damage poorly designed or constructed reinforced concrete. When rebar corrodes, the oxidation products expand and tends to flake, cracking the concrete and unbonding the rebar from the concrete. Typical mechanisms leading to durability problems are as below: Mechanical failure Steel reinforced concrete may be considered to have failed when significant cracks occur. Cracking of the concrete section cannot be prevented. However, the size and location of the cracks can be limited and controlled by reinforcement, placement of control joints, the curing methodology and the mix design of the concrete. Cracking defects can allow moisture to penetrate and corrode the reinforcement. This is a serviceability failure in limit state design. Cracking is normally the result of an inadequate quantity of rebar, or rebar spaced at too great a distance. The concrete then cracks either under excess loadings, or due to internal effects such as early thermal shrinkage when it cures. Ultimate failure leading to collapse can be caused by crushing of the concrete matrix, when stresses exceed its strength by yielding of the rebar or by bond failure between the concrete and the rebar. Carbonation Carbonation or neutralisation, is a chemical reaction between carbon dioxide in the air and calcium hydroxide and hydrated calcium silicate in the concrete. The water in the pores of Portland Cement Concrete is normally alkaline with a pH in the range of 12.5 to 13.5. This highly alkaline environment is one in which the embedded steel is passivated and is protected from corrosion. The carbon dioxide in the air reacts with the alkaline in the cement and makes the pore water more acidic, thus lowering the pH. Carbon dioxide will start to carbonate the cement in the concrete from the moment the object is made. This carbonation process will start at surface, then slowly move deeper and deeper into the concrete. If the object is cracked, the carbon dioxide in the air will be better able to penetrate into the concrete. Carbonated concrete only becomes a durability problem when there is also sufficient moisture and oxygen to cause electro-potential corrosion of the reinforcing steel. Chlorides Chlorides, including sodium chloride, can promote the corrosion of embedded steel rebar if present in sufficient concentration. So, only use fresh raw water or portable water for mixing concrete. It was once common for calcium chloride to be use as an admixture to promote rapid set-up of the concrete. It was also mistakenly believed that it would prevent freezing. Alkali Silica Reaction This is a reaction of amorphous silica sometimes present in the aggregates with alkali, for example from the cement pore solution. The silica reacts with the alkali to form a silicate in the Alkali silica reaction, this causes localize swelling which causes cracking. The conditions are: aggregate containing an alkaline reactive constituent, sufficiently availability of alkali ions and sufficient moisture. This phenomenon referred as concrete cancer. This reaction occurs independently of the presence of rebar. Conversion of High Alumina cement Resistant to weak acids and especially sulfates, this cement cures quickly and reaches very high durability and strength. However, it can lose strength with heat or time, especially when not properly cured. Sulfates Sulfates in the soil or in groundwater, in sufficient concentration, can react with the Portland cement in concrete causing the formation of expansive products which can lead to early failure of the structure. Corrosion and Passivation of steel reinforcement Exposed steel will corrode in moist atmospheres due to differences in the electrical potential on the steel surface forming anodic and cathodic sites. Concrete as an environment The environment provided by good quality concrete to steel reinforcement is one of high alkalinity due to the presence of the hydroxides of sodium, potassium and calcium produced during the hydration reactions. The bulk of surrounding concrete acts as a physical barrier to many of the steels aggressors. In such an environment steel is passive and any small breaks in its protective oxide film are soon repaired. However, the alkalinity of its surroundings are reduced, such as by neutralization are able to reach the steel then severe corrosion of the reinforcement can occur. This in turn can result in to staining of the concrete by rust and spalling of the cover due to the increase in volume associated with the conversion of iron to iron oxide. Factors affecting corrosion rates of steel in concrete The permeability of the concrete is important in determining the extent to which aggressive external substances can attack the steel. A thick concrete cover of low permeability is more likely to prevent chloride ions from an external source from reaching the steel and causing depassivation. Alternatives for the reinforcing phase Where an adequate depth of cover is difficult to achieve due to design considerations or where aggressive environments are expected such as in marine structures or bridge decks, additional protection may be required for the embedded steel. This may take many and varied forms and commercial interest in this field is strong. The steel reinforcement itself may be made more able to maintain its passivity by providing it with a protective coating. In extreme circumstances, solid stainless steel may be used, although the perceived additional cost restricts its use in all but the most specialized applications. The ideal situation There can be little doubt that the most effective way of protecting steel which is embedded in concrete is to provide it with an adequate depth of cover by high strength, low permeability concrete free from depassivating ions such as chlorides. However, in the real world, concrete is laid by the tone in all weathers and environments, exposed to industrial atmospheres, de-icing salts and seawater. The real situation Contaminated materials and poor workmanship are hard to avoid completely but by understanding the often complex chemical and electrochemical conditions that can exists it should be possible to develop ways of producing structures which will last long into the next century. Deterioration mechanisms The majority of reinforced concrete around the world performs adequately and gives few problems. A minority of structures have deteriorated due to either the action of aggressive components from the external environment or incompatibility of the mix constituents. Problems can arise as a result of incomplete or inaccurate site investigation, poor design, badly specified concrete, poor workmanship and a range of other factors. Stages of deterioration The mechanisms of deterioration are primarily chemico-physical in nature and occur in three discrete stages which are initiation, propagation, and deterioration. Modes of deterioration Deterioration may occur due to a number of mechanisms on which a large body of literature already exists. These include: Corrosion of reinforcement due to chloride ions, carbonation and change in the rebar reinforcement. Sulphate attack of concrete Salt recrystallisation Soft water or acid attack of concrete Alkali aggregate reaction Thermal incompatibility of concrete components Shrinkage Frost damage Depth of cover Inadequate cover is invariably associated with areas of high corrosion risk due to both carbonation and chloride ingress. By surveying the surface of a structure with an electromagnetic covermeter and producing a cover contour plot, the high-risk areas can be easily identified. A cover survey of newly completed structures would rapidly identify likely problem areas and permit additional protective measures to be taken. Cracked cover It should be remembered that reinforced concrete is intrinsically a cracked material because the steel stops the structure failing in tension but the brittle concrete cracks to the depth of the reinforcement. Only those cracks above a critical width which intersect the steel are liable to assist the corrosion processes. Cost Incurred After a period of unprecedented growth in prices during 2004, early date for 2005 indicates that the constructional steel market faces greater stability in the year ahead. Despite the price increases, demand for steel in the UK market remained at a very high level in 2004. One of the principal concerns for steel users was the availability of material, but the year ended with more steel in the supply chain than there had been at the beginning. Structural steel frame costs The leading benchmark cost unit for structural steelwork is its unit cost per tonne which includes the steel and the following elements: Connection design, detail drawing, fabrication, testing, treatment and delivery, offloading, erection These are calculated against the overall estimated tonnage for the building to generate an overall frame cost. Unit costs per tonne can vary enormously as there are a combination of factors that influence the overall cost. Care should be taken in considering each projects characteristics in arriving at a tonnage rate. This can be calculated either on the number of beams and column in a building or a weight per m ². The relative costs of each element will vary depending on the nature of the project. The tonnage rate could be divided as follows: Materials 30% Engineering 5% Fabrication 35% Priming 8% Delivery 2% Erection 20% The costs assume that the structural steelwork contractor will provide their own crane for all the projects with the exception of office buildings, for which the main contractor provides a tower crane. The early involvement of structural steelwork fabricators is the most effective way to value engineer cost savings into steelwork frame. For example, using more substantial and therefore more expensive steel columns in a design could remove the need for stiffeners. The steel may cost more but it is cheaper overall than paying for labour to fabricate and weld stiffeners to the column. If this value is adopted early enough in the project across the whole frame design, significant cost savings can be achieved. The cost of a frame system alone should not dictate the choice of frame for a project. Rather it should be just one of a number of issues that should be considered when making the choice of frame material. The recent rises in reinforcement and steel prices have increased frame costs but the difference between steel and concrete frame costs remains insignificant. A 50% increase in European steel prices during 2004 has left many in the construction industry reviewing design solutions that have a heavy reliance on steel. The impact of the steel price rises and found that the whole project costs for concrete framed buildings are marginally less than for steel framed buildings. Foundation costs The foundations typically represent approximately 3% of whole project initial cost. For the heaviest reinforced concrete solutions, the foundations will be more expensive, but this represents only a small cost and can be offset by using post-tensioned slabs, which are typically 15% lighter. Cladding costs The thinner the overall structural and services zone, the less the cladding costs. Given that cladding can represent up to 25% of the construction cost it is worth minimizing the cladding area. The minimum floor-to-floor height is almost always achieved with a concrete flat slab and separate services zone. Partitions Sealing and fire stopping at partitions heads is simplest with flat soffits. Significant savings of up to 10% of the partitions package can be made compared to the equivalent dry lining package abutting a profiled soffit with downstands. This can represent up to 4% of the frame cost. Services co-ordination/ Installation/ Adoptability The soffit of a concrete flat slab provides a zone for services distribution free of any downstand beams. This reduces coordination effort for the design team and therefore the risk of errors. It permits flexibility in design and allows coordination effort to be focused elsewhere. Services installation is simplest below a flat soffit. This permits maximum off site fabrication of services, higher quality of work and quicker installation. These advantages should be reflected in cost and value calculations. Indeed, ME contractors quote an additional cost of horizontal services distribution below a profited slab of up to 15%. Flat soffits also allowed greater future adaptability. Fire protection For concrete structures fire protection is generally not needed as the material has inherent fire resistance of up to four hours. This remove the time, cost and separate trade required to attend the site for fire protection. Vibration The inherent mass of concrete means that concrete floors generally meet vibration criteria at no extra cost and without any extra stiffening. For more stringent criteria, the additional cost to meet vibration criteria is small compared to other structural material. Exposed soffit A concrete structure has a high thermal mass. By exposing the soffits this can be utilized through fabric energy storage to reduce initial plant costs and ongoing operational costs. Furthermore, the cost of suspended ceilings can be reduced or eliminated. Conclusion As a conclusion, the majority of reinforced concrete structures show excellent durability and perform well over their design life. Adverse environments or poor construction practice can lead to corrosion of the reinforcing steel in concrete. The major mechanisms for corrosion are atmospheric carbon dioxide ingress and chloride attack from cast-in or diffused chlorides. The corrosion and deterioration mechanisms are essentially the same for both carbonation and chloride attack. Proper choice of materials, adequate cover to reinforcement, good quality concrete and attention to the environment during construction will enhance the durability of reinforced concrete structures. For cost incurred, concretes range of inherent benefits including fabric energy storage, fire resistance and sound installation means that concrete buildings tend to have lower operating costs and lower maintenance requirements. For structure subjected to aggressive environments, combinations of moisture, temperature and chlorides may result in the corrosion of reinforcing and prestressing steel, leading to the deterioration of concrete and loss of serviceability. One preferred solution which has assumed the status of cutting-edge research in many industrialized countries, is the use of fiber reinforced polymer rebars in concrete. Fiber concrete is also becoming an increasingly popular construction material due to its improved mechanical properties over non-reinforced concrete and its ability to enhance the mechanical performance of conventionally reinforced concrete. DEFINITION OF FIBRE REINFORCED POLYMER Fibre-reinforced polymer (FRP), also known as fibre-reinforced plastic) are composite materials made of a polymer matrix reinforced with fibres. FRPs are commonly used in the aerospace, automotive, marine, and construction industries. FRPs are typically organized in a laminate structure, such that each lamina (or flat layer) contains an arrangement of unidirectional fibres or woven fibre fabrics embedded within a thin layer of light polymer matrix material. The fibres, typically composed of carbon or glass, provide the strength and stiffness. The matrix, commonly made of polyester, Epoxy or Nylon, binds and protects the fibers from damage, and transfers the stresses between fibers. TYPES OF MATERIAL USED Polymer There are two main types of polymer used for resins: thermosets and thermoplastics. The thermosetting polymers used in the construction industry are the polyesters and the epoxides. There are many thermoplastic resins used in composite manufacture: polyolefins, polyamides, vinylic polymers, polyacetals, polysulphones, polycarbonates, polyphenylenes and polyimides. Fibre A wide range of amorphous and crystalline materials can be used as the fibre. In the construction industry the most common fibre used is glass fibre (there are 4 types of glass fibre: E-glass, AR-glass, A-glass and high strength glass). Carbon fibre, of which there are 3 types (Type I, II, III) can be used separately or in conjunction with the glass fibre as a hybrid to increase the stiffness of a structural member or the area within a structure, so that the stiffness exceeds the value possible using only glass fibre. Aramid fibres can be used instead of glass fibres to give increased stiffness to the composite. Today each of these fibers is used widely in industry for any applications that require plastics with specific strength or elastic qualities. Glass fibers are the most common across all industries, although carbon fiber and carbon fiber aramid composites are widely found in aerospace, automotive and sporting good applications. Additives For structural applications it is mandatory to achieve some degree of flame retardant. Fire retardants are usually incorporated in the resin itself or as an applied gel-coat. Fillers and pigments are also used in resins for a variety of purposes, the former principally to improve mechanical properties and the latter for appearance and protective action. APPLICATIONS OF FRP IN CONSTRUCTION There are three broad divisions into which applications of FRP in civil engineering can be classified: applications for new construction, repair and rehabilitation applications, and architectural applications. NEW CONSTRUCTION FRPs have been used widely by civil engineers in the design of new construction. Structures such as bridges and columns built completely out of FRP composites have demonstrated exceptional durability, and effective resistance to effects of environmental exposure. Pre-stressing tendons, reinforcing bars, grid reinforcement, and dowels are all examples of the many diverse applications of FRP in new structures. REPAIR AND REHABILITATION One of the most common uses for FRP involves the repair and rehabilitation of damaged or deteriorating structures. Several companies across the world are beginning to wrap damaged bridge piers to prevent collapse and steel-reinforced columns to improve the structural integrity and to prevent buckling of the reinforcement. ARCHITECTURAL Architects have also discovered the many applications for which FRP can be used. These include structures such as siding/cladding, roofing, flooring and partitions. DESIGN CONSIDERATION The strength properties of FRPs collectively make up one of the primary reasons for which civil engineers select them in the design of structures. A materials strength is governed by its ability to sustain a load without excessive deformation or failure. When an FRP specimen is tested in axial tension, the applied force per unit cross-sectional area (stress) is proportional to the ratio of change in a specimens length to its original length (strain). When the applied load is removed, FRP returns to its original shape or length. In other words, FRP responds linear-elastically to axial stress.   FRP allows the alignment the glass fibers of thermoplastics to suite specific design programs. Specifying the orientation of reinforcing fibers can increase the strength and resistance to deformation of the polymer. Glass reinforced polymers are strongest and most resistive to deforming forces when the polymers fibers are parallel to the force being exerted, and are weakest when the fibers are perpendicular. Thus this ability is can be an advantage or a limitation depending on the context of use. Weak spots of perpendicular fibers can be used for natural hinges and connections, but can also lead to material failure when production processes fail to properly orient the fibers parallel to expected forces. When forces are exerted perpendicular to the orientation of fibers, the strength and elasticity of the polymer is less than the matrix alone. In cast resin components made of glass reinforced polymers such as UP and EP, the orientation of fibers can be oriented in two-dimensional and three-dimensional weaves. This means that when forces are possibly perpendicular to one orientation, they are parallel to another orientation; this eliminates the potential for weak spots in the polymer. COST With the rising cost of nickel, FRP has become a very competitive material of construction. It is very competitive with acid brick or rubber-lined carbon steel and much less expensive than alloy-clad carbon steel. It is generally more expensive than resin-coated carbon steel but has a longer service life in most applications. Because FRP does not require insulation, FRP ductwork is actually less expensive than resin-coated carbon steel. ADVANTAGES OF FRP Composites offer the designer a combination of properties not available in traditional materials. It is possible to introduce the fibres in the polymer matrix at highly stressed regions in a certain position, direction and volume in order to obtain the maximum efficiency from the reinforcement, and then, within the same member to reduce the reinforcement to a minimal amount at regions of low stress value. FRP products are a cost effective alternative to steel in many of the harshest industrial environments. The advantages of FRP products over other materials include: Corrosion Resistant Fibre Reinforced Polymer materials are designed to operate in aggressive environments. Little or no coating or treating required. Low maintenance requirements Designed and engineered to last, composite structural materials are virtually maintenance free. Impact resistant Inherent flexibility allows products to resist impact and failure. Non-conductive and Non metallic FRP constructions provide additional safety by stopping sparks and potential electrical hazards. Fire Retardant FRP has a low flame spread index when tested under ASTM E-84 and meets self extinguishing requirements of ASTM D-635. High strength-to-weight ratio The strong, but light weight alternative where heavy lifting or access is an issue. Reduced installation time and cost FRP products are easier and lighter to install. Normal hand tools are used to make adjustments. Therefore FRP offers greater efficiency in construction compared with the more conventional materials. DISADVANTAGES OF FRP Structural failure can occur in FRP materials when tensile forces stretch the matrix more than the fibers, causing the material to shear at the interface between matrix and fibers, tensile forces near the end of the fibers exceed the tolerances of the matrix, separating the fibers from the matrix and tensile forces can also exceed the tolerances of the fibers causing the fibers themselves to fracture leading to material failure. A serious matter relating to the use of FRPs in civil applications is the lack of design codes and specifications. For nearly a decade now, researchers from Canada, Europe, and Japan have been collaborating their efforts in hope of developing such documents to provide guidance for engineers designing FRP structures. FRP plastics are liable to a number of the issues and concerns surrounding plastic waste disposal and recycling. Plastics pose a particular challenge in recycling processes because they are derived from polymers and monomers that often cannot be separated and returned to their virgin states, for this reason not all plastics can be recycled for re-use, in fact some estimates claim only 20% to 30% of plastics can be material recycled at all. In addition, fibers themselves are difficult to remove from the matrix and preserve for re-use means FRP amplify these challenges. FRP are inherently difficult to separate into base a material that is into fiber and matrix, and the matrix into separate usable plastic, polymers, and monomers. These are all concerns for environmentally informed design today, but it must be noted that plastics often offer savings in energy and economic savings in comparison to other materials, also with the advent of new more environmentally friendly matrices such as bioplastics and UV-degradable plastics, FRP will similarly gain environmental sensitivity. DIFFERENCES BETWEEN CONVENTIONAL STEEL REINFORCED CONCRETE AND FIBRE-REINFORCED POLYMER (FRP) CONCRETE No. Conventional Steel Reinforced Concrete Fibre-Reinforced Polymer (FRP) Concrete 1 Definition: Steel reinforced concrete is a specific type that has had strong steel rebar added to it while wet, creating a very strong type of concrete that is able to withstand almost anything when it has dried. Definition: FRP concrete is composite materials made of a polymer matrix reinforced with fibres and typically organized in a laminate structure, such that each lamina (or flat layer) contains an arrangement of unidirectional fibres or woven fibre fabrics embedded within a thin layer of light polymer matrix material. 2 Corrosion of steel reinforcement: Exposed steel will corrode in moist atmospheres due to differences in the electrical potential on the steel surface forming anodic and cathodic sites. Corrosion Resistant: Fibre Reinforced Polymer materials are designed to operate in aggressive environments. Little or no coating or treating

Peace, Prosperity and American Relative Power Capability :: essays papers

Peace, Prosperity and American Relative Power Capability There appears to be in the world an era of unprecedented peace. Contrary to the predictions that the end of the Cold War will bring about the fragmentation of international order and the emergence of multipolar rivalry among atomistic national units, today the world’s major powers enjoy co-operative relations and world economy is progressively liberalising and integrating. The peace and prosperity of the current era, however are sustained by the constant operation of a single factor: American relative power capability (Kupchan, 1998, p. 40). In this paper, a clear foreign policy strategy for the United States of America in Europe and Eurasia will be outlined. Such an outline should be necessarily made from the perspective of American national interests. America is a global power and it has vital global interests. The perception of the global interests of America is shaped by the desired future that the American political elite is envisioning. A viable foreign policy strategy then will be simply the roadmap for achieving, to the greatest extent possible, the objectives which are substantiated by that desired future starting from the present condition of the international landscape. The means to achieve these objectives are determined by the relative power capability that America has at present, as well as the capability self-image in the context of the international landscape of the political elite; its world view. The prevailing world view often shapes the motivations of the decision-makers and consequently determines the perceived foreign policy objectives , as well as the very means to achieve these objectives. Misperception of the behaviour of other actors within the international context leads to erroneous foreign policy motivations on behalf of the decision-making elite, which in turn result in a foreign policy strategy that may be, at best misguided, at worst—catastrophe. That has been the sad, costly lesson from the Cold War—a global low-intensity conflict caused by a mutual misperception of threat with excessively high risk potential for escalating into a thermonuclear war. To downsize the potentiality of similar perceptually-based geopolitical disasters, a clear understanding of the true motivations of the other actors on the international scene is vital. The true motivations can best be outlined through the inferential analysis of the foreign policy behaviour of the other actors. Peace, Prosperity and American Relative Power Capability :: essays papers Peace, Prosperity and American Relative Power Capability There appears to be in the world an era of unprecedented peace. Contrary to the predictions that the end of the Cold War will bring about the fragmentation of international order and the emergence of multipolar rivalry among atomistic national units, today the world’s major powers enjoy co-operative relations and world economy is progressively liberalising and integrating. The peace and prosperity of the current era, however are sustained by the constant operation of a single factor: American relative power capability (Kupchan, 1998, p. 40). In this paper, a clear foreign policy strategy for the United States of America in Europe and Eurasia will be outlined. Such an outline should be necessarily made from the perspective of American national interests. America is a global power and it has vital global interests. The perception of the global interests of America is shaped by the desired future that the American political elite is envisioning. A viable foreign policy strategy then will be simply the roadmap for achieving, to the greatest extent possible, the objectives which are substantiated by that desired future starting from the present condition of the international landscape. The means to achieve these objectives are determined by the relative power capability that America has at present, as well as the capability self-image in the context of the international landscape of the political elite; its world view. The prevailing world view often shapes the motivations of the decision-makers and consequently determines the perceived foreign policy objectives , as well as the very means to achieve these objectives. Misperception of the behaviour of other actors within the international context leads to erroneous foreign policy motivations on behalf of the decision-making elite, which in turn result in a foreign policy strategy that may be, at best misguided, at worst—catastrophe. That has been the sad, costly lesson from the Cold War—a global low-intensity conflict caused by a mutual misperception of threat with excessively high risk potential for escalating into a thermonuclear war. To downsize the potentiality of similar perceptually-based geopolitical disasters, a clear understanding of the true motivations of the other actors on the international scene is vital. The true motivations can best be outlined through the inferential analysis of the foreign policy behaviour of the other actors.

Confucius and Confucianism Essay -- Religion

One of the most famous people in ancient China was a wise philosopher named Confucius (circa 551-479 BC). He was a great Chinese philosopher, educator, and political figure. His teachings and proverbs are in the Analects, which is the base of many Chinese theories. He was born in the village of Zou, and the state of Lu. His father died three years after Confucius' birth leaving the family in destitution, but Confucius did have a decent education. He was married at the age of 19 and had one son and two daughters. He worked as a keeper of a market. Then he was a farm worker who took care of parks and farm animals. When he was 20, he worked for the governor of his province. After a while he decided to teach, and he began traveling around and teaching few disciples that gathered around him. He became known as a man of learning and character. He had a great personality which people were attracted to. His respect for typical Chinese customs soon spread through out Lu. Confucius lived in China when it was really unsettled. The rulers were catastrophic, and Confucius thought the only way to keep life in order was for everyone to go back to traditional principles. He wanted China to go back to the quiet days of the "sage Kings". This was a time in Chinese history when Kings ruled organized kingdoms. They were peaceful because everyone knew their place in life and acted accordingly. Confucius taught in his school his beliefs about respecting family and ancestors for many years. His theories and principles were spread throughout China by his disciples, and soon many people learned from his wise sayings. One of his rules said, "Rulers can be great only if t... ...who was a devout follower of Confucious. These nine books were considered all you needed to live a good life. Confucianism started in 136 BC when Wudi?s advisors finally convinced Emperor Wudi that Confucianism was the superior school. Soon, emperor Wudi set up a Confucian academy to train officials. In order to get to the Confucian academy, there were a series of examinations. The examination system spread throughout China and the books previously listed became the basis for these examinations. First there were the preliminary exams. After that, the first level, if you passed your social class would be raised higher. Then the second level,which only one in a hundred passed. Finally the final exam, and the few that passed this exam then had an interview with the emperor who hand picked finalists for the highest government posts.

Channel Structure and strategic choice in distribution channels Essay

This article mainly talks about the importance of marketing channel of marketing channel strategy decisions, they are highlighted by: 1) term consequences and 2) the constraints andopportunities that they represent..The present paper incorporates strategic management theory into marketingchannels literatures to examine the impact of different channel structures onthe choice of a generic channels strategy. Specifically, the contingent effects of channel power/control and the degree ofvertical integration are examined as they affect the choice between thegeneric strategies of overall costleadership, differentiation, focus, andcombination strategies. Besides research on the manipulation of power and influence attempts, littleattention has been given to the study of channel strategies. The intent of the present paper is to examine how one strategy concept,choice of a generic strategy, can be applied in a channel context. The basis of the discussion of strategy will be Porter’s str ategy typology,though supporting literature wiU also be used. Overall LowCost Leader, The OLC strategy stresses economies of scale,proprietary knowledge, preferendal access to raw materials, aggressive pricingpolicies, cost minimizadon, stable product lines and other factors which leadthe firm to become â€Å"The† low-cost producer or supplier in its industry. Specifically, I will be concerned with how varying levels of vertical integrationand power/control within the channel affect the choice of a generic strategy. I first need to provide a brief review of the strategy framework to be utilized. The Strategic Framework The work by Porter defines three generic strategieswhich firms might choose to pursue in order to establish a competidveadvantage: overall low-cost leader, differentiation and focus. According to Porter, a firm’s compeddve advantage combines with its scope ofacdvides to determine which of the three generic strategies the firm willchoose. The generic strategy, will, in turn affect the performance of the firm. 80 Firms stressing the differendadon strategy seek to be unique in theirindustry along some dimensions that are widely valued by buyers. Focus The focus strategy rests on the choice of a narrow compeddve  scopewithin an industry. The firm following this strategy selects a segment or subsecdon of an industryand s ets a strategy to serve it better than anyone else in the industry. Combination Strategies Porter states that each of his strategies is a†Fundamentally different approach to creadng and sustaining a compeddveadvantage†. Further support for a combination strategy is found in Wright, et al. Interestingly, the firms with the highest performance followed a combinationstrategy. Vertical Integration and Strategy The literature just discussed providesevidence that organizations may pursue more than one strategy at a time,thus allowing for a combination strategy. The current paper will include four potential strategies from which firms mightchoose: OLC, differentiation, focus, and combination. The following section will develop propositions, which identify contingentchannel conditions, which affect the choice of a generic strategy. Development of Propositions A number of management researchers have putforth contingency approaches, identifying under what conditions each genericstrategy is appropriate. On the internal end, are cost minimization, low cost leader, and defenderstrategies, consistent with the vertically integrated firm? At the other end ofthe continuum are maximizing, prospecting, and differentiating strategies,consistent with the nonintegrated firm. PI: Firms which are highly vertical integrated are more likely to choose an OLCstrategy. P2: Firms with low levels of integration are more Ukely to choose adifferentiation strategy. In terms of a combination strategy, there is evidence to suggest that firms,which generate high growth and high profits, are better equipped to use botha differentiation and an OLC strategy. When combined, these strategies produce enhanced economies of scale andimproved ROI. Some researchers take the position that power is necessarily a negativeaspect in that, those who possess it will attempt to infiuence exchangepartners by use of coercive influence strategies. If the firm chooses a focus strategy, it will attempt to â€Å"Own† a particularmarket segment either through price leadership or differentiation. The difference between this strategy and the focus strategy is the fact thatfocus concentrates on a particular segment, while this strategy is industry-wide. The choice between these two strategies is likely to depend on the scope  ofthe supplier’s activities. While these firms are able to compete on an OLC strategy, there is not muchincentive to do so. When competing firms counter the low cost leader strategy, firms musteventually turn to some form of differentiation or suffer long-runconsequences for the industry. P5: When faced with the superior power of buyers, suppliers with a regionalcompetitive scope will attempt to combat the power of buyers by choosing afocus strategy. As discussed in the section on vertical integration, the pursuit of tactics suchas integration, cost reductions, and reliance on standardization of practices,is consistent with an overall low-cost leader strategy. P6: When faced with high levels of supplier power, buying firms willemphasize on a differentiated focus strategy. The concept of channel strategy has received little attention. Specifically, the contingent effects of channel power/control and the degree ofvertical integration have been examined as they affect the choice betweenthe geneVic strategies of overall cost-leadership, differentiation, focus, andcombination strategies. Contingent propositions is meant to show the interrelationship of channelstructure and subsequent channel strategies.

Porter Generic Stratey Essay

The key drivers of competitive advantage are cost leadership and differentiation product †¢COMPETITIVE STRATEGY- the means by which an organisation seeks to achieve and sustain a competitive advantage†¦Ã¢â‚¬ ¦ Porter suggests that competitive strategy means taking an offensive or defensive action to create a defendable position to cope with the competitive forces- this would lead to greater returns †¢Porter suggests that a firm’s strengths fall into two headngs; cost advantage and differentiation. By applying these strengths in a broad or narrow focus, three generic strategies result: COST LEADERSHIP, DIFFERENTIATION AND FOCUS†¦Ã¢â‚¬ ¦they are generic because they are not specific to a firm or industry. †¢4 strategies to gain a competitive advantage: COST LEADERSHIP-(superior profits through lower costs), DIFFERENTIATION-(higher profits by adding value the products areas that are of real significance for customers who are willing to pay a premium price), FOCUS STRATEGY-(concentrate on a specific area on the market) †¢COST LEADERSHIP- concentrates on becoming the lowest cost producer through economies of scale. With this, the organisation can compete on price with the potential to earn higher unit profits. Cost reduction provides the focus for the orgaisations strategy. Competitive advantage is achieved by driving costs down. There is room for only one cost leader †¢Firms that succeed in cost leadership have the following strengths: access to capital to make big investment, design skills, high level of expertise in manufacturing process, efficient distribution channels †¦. EXAMPLES- RYANAIR, TOYOTA, TESCO, AND WALMART †¢Cost leadership is often seen as a strategy that aims to attract customers with low prices made by low costs†¦.. ut this doesn’t necessarily mean the lowest selling price, but due to low costs, the profit margins are higher †¢DIFFERENTIATION- this strategy calls for a development of a product or service that offers unique and valued attribute by customers. The customers believe that the product is different than rivals. – the uniqueness gives a product added value which enables companies to charge a higher price premium. Successful differentiation- differentiating products from competitiors, charging a higher price†¦. an base differentiation on omage, durability, after-sales customer service/ needs strong R&D †¢HOWEVER, adding value increases a firms cost base for a product which reduces the unit profit margin- these costs can only be recouped if the consumer is willing to pay the premium price. Also, customers must recognise these differences†¦. EXAMPLES: BMW, MIELE (HIGHER QUALITY DOMESTIC APPLIANCES), BANG AND OLUFSEN, MERC, ETC †¢Benefit – a chance of charging a premium price, demand for differentiated less elastic, above average profits, additional barriers to entry? Risks – difficult to sustain, higher costs, risk of creating differences, comsumers may become too price sensitive, compititors who attain a focus strategy may achieve greater differentiation. †¢FOCUS STRATEGY- Like differentiation, but organisation concentrates on one or more segments of the market, this may offer the firm more security for achieving its competitive advantage†¦. However there are specific requirements for the focus strategy†¦. Firms benefit form specialisation, differentiation on a lower scale, so the costs are lower than full scale differentiation