Thursday, October 31, 2019

How to Resolve an Ethnic Conflict- Case Study of Bosnia Research Paper

How to Resolve an Ethnic Conflict- Case Study of Bosnia - Research Paper Example The Serbs were seeking political dominance in Bosnia by eliminating the weak Bosnian Muslims. According to Horowitz (2000), a weak state cannot manage the differing ethnic interests peacefully in order to provide protection to all ethnic groups. The Bosnian conflict was also politically fueled by government and military leaders. Political leaders can have discriminatory inter-ethnic politics and ideologies that favor some ethnic groups (Jesse & Williams, 2011). Serbian leaders such as General Mladic and Radovan Karadzic were the masterminds of the Srebrenica massacre. Serbian political leaders had empowered Serb militias to fight the defenseless Bosnian Muslims. Cultural factors such as propaganda, stereotyping and religious differences also lead to ethnic conflict (Jesse & Williams, 2011). Stereotyping creates tension between ethnic groups and hinders social cohesion (Horowitz, 2000). Bosnia was composed of Muslims and non-Muslims. In 1992, fierce propaganda was spread by Serbs depi cting Muslims as extremist fundamentalists. This made Bosnia Serbs support Serbian militia fighting against Bosnia Muslims. Other factors such as economic factors and weak national institutions had little impact among the causes of the Bosnia war. However, these factors still remain valid causes of ethnic conflict among different ethnic groups. Several countries in Africa and Asia experience conflict due to imbalance in economic development and institutions that disregard the law. The Bosnia conflict was ended by the signing of the Dayton Peace Agreement in 1995. The peace deal had been brokered by the U.S government. The Serbian leader Slobodan Milosevic, Bosnian president Alija Izetbegovic, and Croatian President Franjo Tudjman signed the peace agreement. The United States, Russia, France, Germany, and Britain initiated the peace deal that ended the war in 1995. Sarajevo was made the capital city of Bosnia, and the country was divided into two regions along ethnic lines. The Serbs were given 49 per cent of the country, and the remaining 51 per cent was allocated to the Bosnia Muslims. The deal led to the establishment of a Peace Implementation Council to coordinate reconstruction and development projects. The deal included the deployment of NATO troops in the country for peace keeping. A UN High Representative was appointed to make and enforce the law at the state and entity level. The country conducted national elections that established a government of three presidents. Through the peace agreement, political differences that led to the conflict had been addressed. According to Horowitz (2000), differences in political ideologies and the desire for political dominance lead to ethnic conflict. The peace agreement led to the establishment of a central government that would rule over Bosnia. Each entity also has a state government, police, and the military. The issue of weak institutions that disregard the law and a weak nation or ethnic group was addressed. T he weak Bosnia Muslims were given the biggest portion of the country and established a state government and a military force. This gave them an institution that guarantees their security and makes laws that govern the state. The PIC makes decisions that have been implemented by international organizations such as IMF, the World Bank,

Monday, October 28, 2019

Asylum Seekers in Australia Essay Example for Free

Asylum Seekers in Australia Essay Australias mandatory detention of asylum seekers are of a serious concern. There has been aroused intense national and international debate. In the past few years we have been bombarded with images of detainees suffering from depression, mental anguish, trauma and psychological damage. Australia has a policy of mandatory detention for all refugees and asylum seekers who arrive by boat to Australian shores. Those who have reached Australias shores should not be placed in inhumane conditioned detentions, it is a breach of human rights. There have been proposed alternatives to detention of asylum seekers, many of which should be considered. The Human Rights Watch has established many reasons to why asylum seekers have come to Australia, many of which to seek safety and hope for a better life. Once reaching Australias shores, for the majority, hope for a better life is not the case. Instead, these aslyum seekers are imprisoned. Many, if not all, are innocent. Being punished for being innocent? People working in the field of migrant and refugee, claim that non-genuine applicants for refugee status are a very small minority, this is highly unfair to genuine applicants, the majority. (http//www. socialjustice. catholic. org. au). Like the saying, Keeping the whole class in because one child spoke. By Australian law, these refugees are eligible to stay on Australian soil. But, under Government policies (administrated by the Department of Immigration and Multicultural Affairs (DIMA)), asylum seekers are prevented claim of asylum, they not permitted to work, are denied access to medicare and foremost are forced into detention. These asylum seekers should not be placed in detention, it is unethical. We are the only developed country to put into practice indiscriminate detention of asylum seekers. We have indeterminately jailed them all the elderly, the children, the sick and the preganant (A speech by The Hon Justice Marcus R. Einfeld http//www. westnet. com. au/jackhsmit/detention. htm). Unauthorised asylum seekers are detained in one of six on-shore or one of three off-shore detention facilities. Detention generates the most attention of any asylum issue. These detention facilities are in inhumane conditions, where there are riots, frequent beatings, psychotic breakdowns and suicide attempts. Is this really the sort of place to be living in? Detention facilities very much resemble jail-like cells behind razor wires. An investigation from the Federal Parliament Human Rights Committee found conditions in some of the centres appalling, reporting that conditions were often below Australian jail standards. Asylum seekers have been subjected to unneccessary use of force and have had their rooms trashed by guards for no apparent reason. The detention facilities in Woomera and Port Headland have attracted the most attention. Both these detention centres are in inhospitable remote locations with overcrowded conditions. Both have also generated violent riots and breakouts. Human rights have been violated due to the conditions of these detentions; restricted access to services; and restricted access to judicial review. These asylum seekers have come to Australia to sought refuge in a, what was thought to be a compassionate and humane country, not to be sentence to imprisonment. There have been proposed alternatives to detention of asylum seekers The Alternative detention model and The Detention Standards Document. Both wanting similar outcomes. The treatment of aslyum seekers is inhumane, the Australian government should provide a more flexible detention regime. They should only detain these people for only a limited period enough for a complete health and criminal check, a prediction of less than a month. After initial compulsory checks, asylum seekers awaiting for their status to be decided should be allowed to roam freely in communities, with access to facilities, support and help. They should only be detained if they pose a threat to communities/Australia. There should be closure to detention centres and for them to be replaced with reception centres with community support suggested by Pamela Curr Victorian Greens spokesperson on refugee (http//www. esistance. org. au/zine/news4. html). These receptions would be friendlier places, with leisure and educational facilities open spaces. The housing of asylum seekers in well-resourced, open receptions while their claims are to be decided offers the most logical and humane alternative Although, there may be some restrictions on what they are allowed to do and are not allowed to do, this is a much better alternative to the current mandatory detention system. Australia has turned a blind-eye to the fact that one of the reasons for asylum seekers leaving their country of origin is because of risk of persecution and have come to Australia to sought protection, their treatment here in Australia is unjust. The Australian government should provide a more felixble system. The asylum seekers have not come to Australia to be imprisoned, yet we are treating them as criminals. What really have they done wrong but to seek a better life for their family?

Saturday, October 26, 2019

Understand the background to organizational strategic change

Understand the background to organizational strategic change LO 1 Understand the background to organisational strategic change I. John P Kotters eight steps to successful change; Harvard-Professor Kotter, studying the process of organizational change for over three decades. While any change can be successfully implemented or otherwise be a failure. Kotter worked out an 8-step model. The first four steps here focus on de-freezing the organization; the next three make the change happen; and the last step re-freezes the organization with a new culture (Leading Change by John P. Kotter). The change management guru also mentions that when someone people need to make big changes significantly and effectively, he says that this goes best if the 8 steps happen in order. They have been summarised as below: Create Urgency One needs to create and imbibe an increased sense of urgency. This motivates people to make a move, make real and relevant objectives. Form Team A strong and able guiding team needs to be built. Remembering to get the right people in place for the right job as commitment, and various levels of skill sets need to be matched. Create Vision The team establishes a vision and strategy required to deliver quality service and efficiency. Communicate Vision Involve as many people as possible, communicate the essentials, simply, and to appeal and respond to peoples needs. As the vision competes with various day to day organizational tasks one needs to communicate it frequently and powerfully, and embed it within everything. One should also lead by example. Remove Obstacles At this stage one has to put in place a structure for imminent change. Empower leaders removing any hierarchical obstacles, enabling healthy feedback and enough support from all stakeholders. Create short-term wins Create and set short-term targets that are easy to achieve. Manage the number of initiatives and finish running stages before starting new ones. Consolidate Improvements Consolidate and encourage determination and persistence for ongoing change. Highlight achievements; reward progress; and set future goals. Instil new projects and themes. Make it Culture One has to weave change into the corporate culture. Reinforce and institutionalise the value of successful change via recruitment, promotion. At this step one has to create plans to replace key leaders of change as they move on. This will help ensure that their legacy is not lost or forgotten. It has been accepted the world over that change is inevitable. A change can be small restricted to a single or more processes, or even for that matter a system-wide change. Under Kotters theory create a sense of urgency, recruit powerful change leaders, build a vision and effectively communicate it, remove obstacles, create quick wins, and build on your momentum. Such a documented and methodical process can help make the change part of ones organizational culture. II. McKinseys 7S (strategy) framework; Two consultants working at consulting firm McKinsey, in the early 1980s, Tom Peters and Robert Waterman developed this model. It says that, in order to ensure that all parts of the organization work as a single unit, there are seven internal aspects. (Ethan M. Rasiel, Paul N. Friga The McKinsey Mind: Understanding and Implementing the Problem-Solving Tools and Management Techniques.) The seven independent factors could be categorized as Hard Elements: Strategy, Structure and Systems; these are relatively easy to identify. Soft Elements are Shared Values, Style, Staff and Skills, which are more difficult to identify and influence. These are less tangible and more of the cultural aspect.(In Search of Excellence) Shared values: This interconnecting centre of the model mentions the central beliefs and attitudes of the organization. Strategy: Plans for resource allocation to attain identified goals. Need to look at factors like environment, competition and customers. Structure: The way the firms units relate to each other: centralized or decentralized, matrix, network, holding, etc. System: The procedures, processes and routines that say how to perform day to day work: financial systems, hiring performance appraisal; information systems. Staff: Numbers and the type of personnel required for the organization. Style: Cultural style of the business leaders. Skill: Skill sets and capabilities of the firms personnel as a whole. These can be applied to a team or a project. It should be noted that alignment issues do apply, regardless of how the scope is defined. For example this strategy helps to: align processes and departments amidst mergers or acquisitions. improve company performance. determine the best possible way to implement the proposed strategy. scrutinize the likely effects of imminent changes internally. Whatever be the type of change, this model can be used to understand how the organizational machinery is inter-related, ensuring that the broader effect of changes made in one area are considered. The 7S model helps analyze the current situation (Point A), a proposed future situation (Point B) and to identify gaps and inconsistencies between them. Its then a question of adjusting and tuning the elements of the 7S model to ensure that your organization works effectively and well once you reach the desired endpoint. III. Burke-Litwins causal change model; Burke Litwins Causal Model of Organizational Performance and Change, enumerates how performance is affected by internal and external factors. Its framework gauges organizational and environmental factors key to bring in a successful change. It also reveals how these factors can be linked causally to achieve a change in performance. Interestingly it incorporates all the variables in the 7S model adding 5 of its own, describing organisational variables and the relationship between them. Each of the variables interact and a change in any one of them can eventually impact others. This helps in understanding how organisations perform, and how they can be changed. The causal model links what could be understood from practice to what is known from research and theory. The model not only discusses how different dimensions link with each other but also discusses how external environment affects the different dimensions in organization. The model focuses on providing a guide for both organizational diagnosis and planned, managed organization change, one that clearly shows cause-and-effect relationships. Understanding assessing the complexity of organizational change Most organizational change is driven by environmental impact Boxes indicate primary variables affecting organizational performance Arrows indicate critical linkages A change in any variable will affect every other variable Higher level variables have greater weight in effecting organizational change (A causal model of organizational performance and change, W. Warner Burke George H. Litwin, Journal of Management, 1992, vol. 18.) The model outlines that, important elements of organisational success, such as mission strategy, leadership organisational culture, are often forced by changes that finds its source outside of the firm. The change manager has to identify these external changes and understand the implications for him/her and the entire team. The model also distinguishes between transformational and transactional organizational dynamics. IV. David Gleichers change formulae Richard Beckhard and David Gleicher created the Formula for Change. It was later refined by Kathie Dannemiller. This formula, like other theories devised to manage change, provides a model to assess the relative strengths affecting the likely success or otherwise of the programs implemented to bring in change. Change = (Dissatisfaction)(Vision)(First Steps) > Resistance C= D x V x F > R Three factors must be present for meaningful organizational change to take place. These factors are: D = Dissatisfaction with how things are now; V = Vision of what is possible (tangible and concrete); F = First, concrete steps that can be taken towards the vision; If the product of these three factors is greater than R = Resistance, then only is change possible. If not, the system would be not capable of overcoming the resistance. It is essential to include planned tactical thinking, and authority to create vision and identify those crucial, early steps towards ensuring a successful change. The models applications could be before change or during the process of change. When planning a major change, planning teams see to it that all the three elements are built in. During the change, the formula is used to trouble-shoot people resisting change finding out the reasons to any resistance. Being different from earlier management theories, such as F.W. Taylors scientific management approach, this approach advocates employee involvement in change, and the use of the internal or external consultants to manage reactions to change. In modern organizations, employees are taking cognizance of the bigger role of the management and realizing their own role and involvement in the organizational success. Employers are now showing more trust in them. The two roles are, now, not mutually exclusive. M1. Since the General Election in May 2010, the UK Prime Minister has announced a handful of changes to a number of government tools and systems. One of the most urgent task facing the country is to wriggle out of the record debt situation and attain better financial position. This requires reforms to the structure of government, including ensuring that the government has the best machinery possible to deliver efficiencies. Restructuring the Civil Services departments was one such thing. Context and rationale The Governments rationale was to ensure that its public machinerys running costs are tightly managed, benefits are delivered and that any changes represent value for money. The change has been made in order to support him in carrying out his Ministerial responsibilities. David Gleichers change formulae could be used to push further the need for change. It has been generally accepted that the British public has various levels of (D) dissatisfaction with how things are now and they would like change. The top priority and need for them is change from the present situation. This brought in a change of guard at the highest level of governance. Overview The people in-charge envisioned a plan to usher in the required objectives. Possible (V) vision both tangible and concrete are drawn and the (F) first, concrete steps that can be taken towards the vision were implemented. As, in the formula, the product of the above factors is greater than (R) resistance, change was possible. Signs of the new government and the changes brought in are highly visible: departments renamed; websites reset to year zero; and advisers appointed at the order of the coalitions new ministers. The appointment of special advisers to the new cabinet ministers also revealed a subtle shift in the spin operation Camerons government will run. The majority have been taken from the ranks of policy advisors, as opposed to press officers, and some ministers have been told they can only have one special advisor instead of the usual two. Ministers also have a team of civil servant press officers within their departments. Q1.3 Briefly explain any four out of the following strategic intervention techniques in organization change management; I. Autocratic versus participative style In an autocratic style of leadership is one where a single person holds unlimited power or authority. In such a system the team members are not encouraged and cannot put forward their views. They cannot criticize or question the leaders way of getting things done. Owing to a single decision maker, the biggest advantage this style offers is that it leads to speedy decision-making and greater productivity. On the other hand, this form of leadership leads to greater employee absenteeism and turnover. In a participative leadership style, also referred as the democratic style, leaders invite and encourage the team members to play an important role in decision-making process. However, one should note that the ultimate decision-making power is held by the leader. Here employees communicate to the leader their experience and suggestions. Its advantages are that it leads to satisfied and motivated employees. Such a system fosters employee skill development, encouraging creativity. However, in this style a lot of time is consumed and it is most often slow. II. Proactive and reactive, Proactive Strategies are interventions techniques used on an ongoing basis. Such steps on an ongoing basis attempts to reduce the probability of occurrence of a challenging behaviour. They are preventative in nature. Reactive Strategies are interventions which are used only once a problem occurs. They are consequences to the behaviour. It is a damage minimization technique. In positive approaches to change management the emphasis of proactive strategies is encouraged. If one does a good job with the proactive strategies, then reactive steps and policies need not be necessary. Sometimes it fully eliminates the challenges. Techno-structural interventions; Techno-structural interventions purpose is to form appropriate work designs and organizational structures providing strategic support of organizational development (E lawler III, 1974). In this form of intervention, the restructuring of the organization is very important. Here, workload is divided in the overall organization via sub-units for effective task completion (M Tushman, E Romanelli, 1986). Restructuring can be performed on at least five major factors environment, organization size, technology, organization strategy and worldwide operation (Thomas G Cummings; Christopher G Whorley, 2002). Employee involvement and work design are other major components. IV. Human process interventions; In todays corporate world, strong emphasis is being laid on humanistic values. Focus is now turning on helping members to enhance themselves, each other and the ways in which they work together in order to enhance their overall organization. The following human process interventions might be particularly helpful during change projects: many new employees, different cultures working together, many complaints among organizational members, many conflicts, low morale, high turnover, ineffective teams, etc. D1 Managing change is as important as ushering in change itself. Proper diagnosis of desired organizational changes, allows application of such strategic intervention as role playing, team development, survey feedback, process consulting, etc. Adopting strategic intervention methods, modern organizations can build success and advancement within and outside their organization. LO 2 Understand issues relating to strategic change in an organisation Q2.1 examine and briefly comment on the need for strategic change in an organisation (P4) Change has become the essence of organizational growth and development. Most change programmes arise from management whims such as culture change, business process re-engineering, and empowerment among others. Another reason for initiating change is competition and the organisations need to reposition it. The following are the some key reasons that initiate the need for change in an organization. They are forced, telling, participatory, or transformational changes. By identifying the root cause, you can determine which mode of change you are actually dealing with in your business. Situations that require a mode of change can be financial, technological, economic, environmental or human focused. The time between the change and the realization of the results of that change is what William Bridges termed as the â€Å"neutral-zone† (Managing Transitions, W. Bridges). Most initiatives are given up because organizations do not see the gap for what it is; the transition between the old world and the new Q2.2 Outline the forces that are impacting on an organisation and driving the need for change (P5). And critically analyse the current position of an organization of your choice and assess the factors in the organisation that are driving the need for change. (M2) As discussed in the question above, situations that require a mode of change can be anything. Factors could be financial, technological, economic, environmental or human focused. The change may be driven from internal or external circumstances such as a new competitive advantage or threat, economic considerations, advancing technology, management restructuring or ownership change, customer dissatisfaction, vendor disruption, or loss of key personnel just to name a few. The figure below shows the contextual features and design choices for a change process undertaken by Glaxo Pharmaceuticals in 1988, prior to its merger with Wellcome in the early 1990s. (Balogun and Hope Hailey) Glaxo was undertaking a proactive change initiative with time on its side. The initial scope was only realignment, as the aim was to generate readiness in its complacent sales division for the transformational changes that were to come to match the changing customer requirements of the National Health Service and the reduced income that would result from one of Glaxos major drugs coming off-patent in the mid-1990s. Interestingly Glaxos balance sheet was heavy, and had the capacity to invest in the change process. However, it wanted to ensure that the change process did not antagonise its sales force and cause them to leave and join competitors. The timescales and the two phases of the scope allowed it to follow a path of reconstruction to generate the required levels of readiness, followed by a longer term evolution. Its capacity and time enabled it to invest in participative personal development initiatives and other symbolic interventions as part of the reconstruction, which would have been out of reach for a less profitable organisation. Q.2.3 If strategic change is important, why do some people find it difficult to accept and what are the consequences of this on the resources of the organisation and on the change process. (P6) As change can be for the proverbial good or bad for an organisation, there are more often than not resistance to the change process. Resistance could come from the following factors: A lack of awareness about the change Low tolerance to change Comfort with the ways things are and fear of the unknown. Conflict over the need for change Misunderstanding Parochial self interest Fear of failure. Loss of status and/or job security. Peer pressure. Disruption of cultural traditions and/or group relationships. Change is also resisted because of the poor way in which change is managed. Although most people feel comfortable with minor changes, it is not easy for people to live and work by yesterdays reality. While a degree of resistance is acceptable, it could lead to Disruption, Stress, Project delays, Missed objectives, Decline in production, Absenteeism, Loss of valued employees, and The ultimate failure of the whole process of implementing change or even the whole organization. LO 3 Be able to lead stakeholders in developing a strategy for change Q3.1 Briefly explain how to involve stakeholders in the planning of change (P7). Use an organization of your choice to demonstrate it is workable in the selected organization. (D2) It is important to consider and understand that people and all stakeholders would be personally be affected by the change process. On a broader scale change requires that â€Å"people do something they have not done before† (Galvin 2003). People are generally the most critical resource, supporter, barrier and risk when managing change. At the onset of the change being conceptualised, the articulation of vision cannot be done exclusively and has to take all parties involved in the process. It is essential that at this stage one involves all of those who will have a stake in the achieving the vision. Strategic plan development requires consideration and articulation of values and priorities; the plan should reflect views expressed by all those involved in the process. Q3.2 List and identify the different strategies that are available in the process of change management in an organization of your choice that would involve ‘stakeholders of such organisation. (P8) For the organizational change exercise to succeed, the management team has to depend on an assortment of people at various stages of the organization. They can be divided into five groups. (Managing Change in the Workplace (2nd Edition) Stakeholders at various Stages Description Examples Change recipients Intended receivers of change or change outcomes End-users of new software Employees of merged companies Decision makers People who approve a change exercise and decide its scope and direction Steering Committee Members Project Sponsor Chief Executive Officer Resource holders People empowered to release financial and human resources required by a change effort Chief Financial Officer Financial institution such as a bank Line Manager Program implementers People charged with the responsibility for bringing about the change Program Manager Project Manager Project Team Members External parties People that are not the intended recipients but who are impacted by the change suppliers whose access to a business is restricted after a change in business hours broader community impacted adversely by a new product that contaminates the local environment Once you have identified your stakeholders at each stage, consider the key messages you will need to deliver to each group in order to gain their support. 3.3 Evaluate ‘six step stakeholders circle as an effective system used to involve stakeholders in the development of a change strategy (P9). You need to evaluate the process, taking account of anything that worked well and anything that did not work well or could have worked better in an organisation of your choice. (D3) The concept of ‘Stakeholder Circle is a registered trademark of the Mosaic Project Services Pty Ltd, Australia. The following are considered when positioning a stakeholder within the circle The radical depth of each stakeholders segment represents the power of that stakeholder. Each stakeholders degree of influence is represented by the width of their segment, the wider the segment, the greater the influence. The proximity of a stakeholder to the project is represented by how close their segment is to the project in the centre. The outcome of the visualisation above is to facilitate decisions on where the project team need to concentrate on their stakeholder management effort. This is based on the understanding of each element like key and relevant stakeholders. After such a careful study can one make a stakeholder-centric planning process be started. 3.4 Using the same organisation in 3.3. Create a strategy for managing possible resistance to change that is appropriate to the selected organization (P10). You need to address the issues and provide a workable approach to overcoming the resistance. (M3) LO 4 Be able to plan to implement models for ensuring ongoing change Q4.1, 4.2 and 4.3 briefed below By looking at change as a process with distinct stages, the change management team needs to prepare itself for what to expect at each stage and make subsequent set of plans. In such a method it becomes easier to manage transition, rather than being caught unawares. Understanding the why the change needs to place, is one of the foremost in any successful change process. Lewin said that, â€Å"Motivation for change must be generated before change can occur. One must be helped to re-examine many cherished assumptions about oneself and ones relations to others.† This is the unfreezing stage from which change begins. After the initiation in the first stage, the change stage is where people begin to make up their mind and are coaxed to look for alternative behaviours. Ideally team members begin to believe and act in ways that support the new direction. The final stage is all about stability. In the stage before this changes have been made and established. At this level changes are accepted and they replace the previous norm and become the new model. Team members shape new relationships and become comfortable with their routines. This can take time. UK retailer, Marks Spencer (MS), found its way into trouble in late 1990s and it subsequently tried to put in place programme of change. It explored issues concerning to the organisational culture, strategic drift, strategic choice and the management of change. The Unfreeze stage: One of the biggest and foremost needs for change came from the customers front. The management and staffs attitude at MS were now being termed as ‘rude and arrogant by some analysts. This was owing to MS stellar performance and the distant competition. This way of doing things, had to be changed as its growth trajectory was taking a slight southward path. This was extremely difficult to change. The internal workings of at the retailer, which were mainly run by family members at the helm of affairs, had also become highly deferential, male oriented, with considerable bureaucracy. Amid this, the market began to see the tides of changes. More and more customers began to value higher levels of service, and were seeking novelty and difference. Competition was picking up too and the quality of service and range of products being offered started to take a toll on sales for the market leader. The Change stage: Luc Vandevelde, Chairman and Chief Executive, gathered info and talked to all stakeholders. It set up an executive team in place and began a strategic review which was rigorous and all inclusive and was radical. The change management team kept all people informed and took feedback from every important person who had something to offer. The Refreeze Stage: The change leader in the form of Vandevelde chalked out some successful strategies like A rebrand and update of the corporate image thus avoiding the confusing ‘Marks Spencer and ‘St Michael symbols. A restructuring of the supply chain where stores were stocked based on demographic patterns. stressed the importance of restoring confidence to MS ‘core customers

Thursday, October 24, 2019

johnny tremain essay :: essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  This book starts in the pre-revolutionary time. At the beginning of the book, Johnny Tremain, is working as an apprentice to Mr. Lapham. Mr. Lapham is a blacksmith. Johnny’s parents died in a fire several years before, and this is why he lived with the Laphams. He worked there with enthusiasm for several years until he hurt his arm, scolding it in hot metal. After the accident, Mr. Lapham told Johnny that he needs to find a different profession, but he can stay with the laphams.   Ã‚  Ã‚  Ã‚  Ã‚  Johnny, after a lot of searching, finally finds a job delivering papers. While delivering papers he meets Rab, who works with him. Rab introduces him to the rebel underground. At that point Johnny agrees to deliver messages between the groups of rebels.   Ã‚  Ã‚  Ã‚  Ã‚  This book is a very interesting read, if you have some self discipline. I mean that you need some self discipline because this book didn’t really captivate me in the sense that I couldn’t put it down. But after reading it for a while, I started to appreciate the author’s way of describing the characters and actions in this book.   Ã‚  Ã‚  Ã‚  Ã‚  There are several things that I like about this book. First off, I love historical fiction, and this is the genre of this book. Also, despite the author being too descriptive, the book went at a steady pace. For me, pace usually determines whether I will read the book or not, and I never really hesitated, or thought about changing books.   Ã‚  Ã‚  Ã‚  Ã‚  This book was interesting to me, but I think that anyone older than I would find this book a slight bit easy, despite the fact that the author, Ester Forbes does use old English words that are no longer used. So I would recommend this book for anyone between the ages of 12-14, and strongly recommend it at that.   Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Despite the book being well written, there are several parts that I would re-write; here I will describe two of them.   Ã‚  Ã‚  Ã‚  Ã‚  The first one is when Johnny hurts his hand by pouring hot metal on it.

Wednesday, October 23, 2019

Market Entry Timing Strategy Essay

Empirical study (Robinson and Fornell, 1985) shows that first mover 20%, early followers 17%, and late entrants 13% market share. Robinson (1988) believes that the order of entry alone explain 8.9% of the variation in market shares. It has been shown that the longer the elapsed time between entry of the first mover and that of later entrants, the more opportunities becomes available to the first mover to achieve cost and differentiation advantages. A longer response time provides the first mover to promote awareness and trial that contribute to category learning and for consumers to integrate into their memory additional information through media and WoM. Lieberman and Montgomery (1988) believe that first-mover advantages arise from three primary sources: Technological leadership, pre-emption of assets, and buyer switching costs. Technological leadership provides a learning curve, where unit production fall with cumulative output, which generates a sustainable cost advantage for the early entrant if learning can be kept proprietary and the firm can maintain leadership in market share. If the first-mover has superior information, it may be able to purchase assets at market prices below those that will prevail later in the evolution of the market, such as natural resources and retailing or manufacturing locations. Where there is room for only a limited number of profitable firms, the first-mover can often select the most attractive niches and may be able to take strategic actions that limit the amount of space available for subsequent entrants. With switching costs, late entrants must invest extra resources to attract customers away from the first-mover firm. Buyer may rationally stick with the first brand they encounter that performs the job satisfactorily. Brand loyalty of this sort may be particularly strong for low-cost convenience goods. Thus, late entrants must have a truly superior product, or else advertise more frequently or more creatively. Schnaars (1986) implies that the early bird normally catches and retains the worm. ‘Me-too’ products introduced by later entrants were much more likely to fail. Second entrants obtain on the average only about three-quarters of the market share of the pioneer, and later entrants are able to capture progressively smaller shares. Consumers tend to know and favour the pioneering product, they have no reason to experiment with subsequent entries. These cost advantages put later entrants at a competitive disadvantage, and pioneers may be able to erect entry barriers that lock out subsequent entrants. Late entrants can also find that the field is crowded and the market offers little opportunity. However, a well-conceived ‘second-but-better’ entry, backed by aggressive advertising, may be able to surpass the pioneer’s entry. Later entrants must be better in terms of performance or price, or both, if they are to have any chance of success. Many firms with str ong market orientation seem to embrace later entry. No one entry strategy proved best in all situations. Primary benefit for the pioneer is to build an unassailable position before later entrants recognize the promise of the market or are willing to take the risks of an early entry. It is most appropriate when image and reputation are important to the customer, experience effects are important and not easily copied, brand loyalty accrues to the pioneer, and cost advantages can be obtained by early commitment to suppliers and channels. It carriers many risks, because almost every aspect of an emerging market is unknown. Many pioneers end up pursuing false leads that later entrants are able to avoid. Thus it must be willing to commit a great deal of money – for R&D and educate customers’. The chances of a pioneer getting the product right for the first time are almost nil. One study found that it takes seven to eight years on the average before a firm that enters a new line of business actually turns a profit. Golder and Tellis (1993) state that for pioneers, consumer-based advantage relate to the benefits that can be delivered from the way consumers first choose and then repurchase the product. The pioneer may become the standard for the product category, and a pioneer can lock-in some customers in categories that have high switching costs. Seventy percent of market leaders are pioneers, and almost half of all pioneers are market leaders. Second firm to enter the market would obtain only 71% as much market share as the pioneer, and third firm to enter would obtain only 58% as much. On the other hand, they believe that if later entrants can leapfrog pioneers with superior technology, positioning, or brand names, firms could better off entering late. Evidence shows that the advantages of being first-in are almost equally balanced by the many pitfalls and disadvantages. Kerin, Vradarajan, and Peterson (1992) state that one can achieve first-mover status by producing a new product, use a new process, and/or enter a new market. They distinguish between two perspectives: the economic-analytical and the behavioural. The former indicates that the pioneer creates barriers to entry so it becomes costly for others to follow, this in turn lengthens the lead time, thus enabling the first mover to benefit initially from no competition, and being more experienced once new entrants emerge. From the behavioural view, the first mover communication is more effective and it obtains reputational advantage. Through purchase and trial, customers can become more reluctant to switch. Similarly, there are economic and behavioural views on market contingencies. From the former perspective, the uncertainty of product demands can lower resource commitments and reduce cost advantage due to scale, but small scale operations are more efficient. A first mover can influence how attributes are valued, define the ideal attribute combination, and ultimately influence consumer’s preferences to its benefit over later entrants. The industry relies heavily on advertising and marketing, thus early consumer exposures to advertising is even more beneficial. The technology changes quickly, so the legal protection and experience advantage decreases. From the behavioural perspective, products can be easily evaluated before purchase, so the purchase and trial benefits decrease. The cost of evaluating a product and making a purchase mistake is lower, hence switching costs decreases. But when consumers need to invest in special, related assets, the switching costs increase. However, following firms may benefit from the ability to free-ride on first-mover investments, resolution of technological and market uncertainty, technological discontinuities that provide ‘gate-ways’ for new entry, and various types of incumbent inertia. They can achieve a CA by influencing consumers’ preferences rather than responding to them, such by moving away from the pioneer and develop a more desirable position. Early entrants’ main benefit is to learn from the pioneer’s experience, and avoid many of the onerous costs, along with being able to assess the market’s reaction to the pioneer’s entry. Many early entrants have relied on some combination of marketing clout, product enhancement and low-cost production. Later entries can benefit from the passage of time. If the product form is changing rapidly and standardization has not been achieved, the later entrant may be able to leapfrog earlier entrants by introducing a superior product, backed by market clout. The later entrant can gain a sizable share of proven growth marketing by capitalizing on the low-cost production of me-too products. Many foreign companies pursue this strategy. Late entrant is risky when earlier entrants are able to erect entry barriers, or the market is already flooded with products that leave no room for enhancement. Level Brother’s Persil entered the tablet detergent market as a pioneer, whereby P&G’s Ariel entered as a follower. The former achieved satisfying customers that stuck to the brand, despite low switching costs. It built a brand image that indicated it was the best, it was innovative and technological advanced. It increased customer choice, which could lead to increased satisfaction and loyalty. Persil soon enjoyed large or monopoly market-share in the category, and had potentially highest share after followers enter. Moreover, entering early allowed it to learn from experiences, with more time for trial and error. By entering first, it could create barriers for entry in the retail through shelf-space, and have patent on technology. Persil also set rules for competition on features, benefits and added services. It could also set the price value based or cost based, thus deciding the market. Ariel, on the hand, had the opportunity to assess the market profitability upon entrance, and needed less knowledge to educate the market. It could learn from Persil’s mistakes in terms of pricing, and had less risk to brand equity. Ariel also enjoyed lower R&D costs and could free-ride on Persil’s effort, in addition to develop a better product. The saved time can be used for optimal positioning. The two competitors were competing heavily on the price per wash, higher and lowering accordingly to each other, starting at 22.0p and 28.0p respectively in 1999, both finishing at 20.0p in 2004, but Ariel did better in the end through learning. In conclusion, one can say that faster entry into the industry does not necessary guarantee absolute competitive advantage. The magnitude of first-mover advantage depends on the degree of fit between the environmental opportunity and the first-mover’s skills and resources. Market pioneering is not a strategy that is appropriate for all firms. In organizational reality, firms are more often a later entrant than a pioneer.

Tuesday, October 22, 2019

Modern Greece 5 Themes of Geography Essay Essays

Modern Greece 5 Themes of Geography Essay Essays Modern Greece 5 Themes of Geography Essay Paper Modern Greece 5 Themes of Geography Essay Paper Absolute Location of Greece:The absolute location of Greece is located at 39oN. 22oE because that’s where its capital. Athens. is located. Relative Location of Greece:South of Macedonia. West of TurkeyThis is a image of Modern Greece that shows the co-ordinates of Greece. This image relates to the subject location because it shows the absolute location of Greece which is the co-ordinates of Athens which is the capital of Greece and absolute location ever shows the co-ordinates of the capital of a state. This is of import because it shows where the capital of Greece. Topographic point Physical Features:Greece is 80 % made of mountains. This is a image of Greece with a mountain in the background. This relates to the subject because mountains are a physical feature because an illustration of a physical feature is a landform and mountains are a type of landform. This is of import because mountains provide us with tonss of resources. Human Features: The Greeks built the Parthenon in award of the goddess Athena. This is a image of the Parthenon. the memorial to Athena. This relates to the subject of topographic point because the Parthenon is a edifice which is a human feature because a human feature is something that was manufactured or created by a human. This is of import because a batch of things worlds build are edifices. Human/Environment Interaction How Humans in Greece Adapt: Peoples adapt in Greece by have oning different apparels for different seasons. For illustration. in the summer people wear short arms to maintain themselves cooled off in the hot portion of the twelvemonth and in the winter wear long arms to maintain themselves warm in the cold portion of the twelvemonth. How Humans in Greece Modify: Peoples in Greece modify by utilizing stuffs for edifices because they’re modifying the environment by destructing the environment in order to do edifices like houses and mills. How the Environment Influences Life/How Humans depend on the environment in Greece: Peoples in Greece depend on the environment for nutrient like fish and farm animal. This is a image of farm animal in Greece. This relates to the subject because people in Greece depend on these animate beings for nutrient. This is of import because without nutrient people would hunger. Motion How Goods Move in Greece: Goods move in and out of Greece by aeroplanes. trains. boats. and choppers. This is a image of an aeroplane transporting goods out of Greece. This relates to the subject because the plane is transporting goods. This is of import because without this there wouldn’t be any manner to acquire goods out of other states to the U. S. or other states. How People Move in Greece: Peoples in Greece move utilizing autos. planes. trains. and boats. How Ideas Move in Greece: Ideas in Greece move utilizing the cyberspace. and by speaking on telephones. Region What Characteristics Unite Greece?Some features that unite Greece are their faith ( Hellenism ) . linguistic communication ( Grecian ) . its mountains. and its attractive forces ( e. g. The Parthenon ) This is a map demoing the mountains of Modern Greece because a feature of Greece are its mountains. This relates to theme because a mountain is a characteristic that is portion of part. This is of import because unifying features bring states together. Other names for Greece:Even though most states call it the state Greece the existent Greeks name their state Hellas and Greek’s functionary name is Hellenic Republic. Bibliography * World Wide Web. nut. wikipedia. org* World Wide Web. greeceathensaegian. com* World Wide Web. enchantedlearning. com* World Wide Web. ericsonlivestock. com* World Wide Web. copterplane. cyberspace* hypertext transfer protocol: //www. Central Intelligence Agency. gov/library/publications/the-world-factbook/

Monday, October 21, 2019

American Themes Essays - Politics, Philosophy, Political Philosophy

American Themes Essays - Politics, Philosophy, Political Philosophy American Themes American Theme-Individualism Literary works reflect the main ideas of the American mind. An American theme that is seen in various works of literature is individuality. Individuality is expressed in three different literary works from Frost, Chopin, and Paine. These works of literature aid us in developing an open mind about what the American people should expect in society. Following others doesnt guide us in any way because it does not allow for us to express our innermost feelings. Throughout these three works, individualism is expressed in various ways. Although all three works do illustrate the idea of individualism, Paine seems to approach it in a different way. Robert Frosts poem, The Road Not Taken, is an insightful idealistic attempt in illustrating the paradox of free will. In the first line, Frost uses the metaphor Two roads diverged (1), to establish not only the hard decision the traveler must make in the poem, but life itself. The decisions we make in life, like the traveler in this poem are not to be taken carelessly. Many have a desire to be adventurous, yet we fear possibilities of failing if we are different from others. In this poem, the road that he decides to take is wanted wear. This road is not a well-traveled path and no one has taken it before. The central idea of Frosts poem is individualism. Frost shows that being his own person makes life so much easier. Frost shows us that we should all express our feelings and be our own person, even if no one else will follow. He took the path that no one else did and that has made all the difference. Similarly, in Kate Chopins short story The Story of an Hour, the central theme of individuality is also expressed. When Mrs. Mallard received the news of her husband s death, she was in a deep state of grief. After she realized that she would now have freedom, she began to rejoice. Even though she loved her husband and will weep for him again, one thought comes to her over and over again: free, free, free!(546). Mrs. Mallard realizes at that instant that her life from now on is her own to live as she chooses; no more will she have to give in to the needs and wishes of her husband. She experiences a sense of independence to be who she wants to be without having to worry about her husband. This reflects the idea of individuality because Mrs. Mallard would live for herself(548). She was delighted to be able to make her own decisions and be free! Body and soul free(548). In contrast, Thomas Paines The Crisis, Number 1, expresses the theme of individualism in a different way. I love the man that can smile at trouble: that can gather strength from distress, and grow brave by reflection(124). Thomas Paine illustrates the idea that those who are free and can look at themselves and see that they live their own life without anyone else, have courage. People, who decide to be independent and not follow anyone else, demonstrate their bravery. Paine expresses his thoughts on giving up on something. He feels that we should strive for what we want to do for though the flame of liberty may sometimes cease to shine, the coal can never expire(125). Therefore, we can see that American themes do imitate the essential thoughts of the American mind. Most American people illustrate the American theme of individualism and it plays a major role in shaping our world today.

Sunday, October 20, 2019

buy custom Application Essay essay

buy custom Application Essay essay Today, human beings have turned out to be self-centred. We are always busy, thinking about own benefits and doing only things that help to fulfil our intentions. We think neither about other persons, nor about entire society. The thought that we should be our brothers keepers provoked me to continue staring at Mathew Johnsons lifeless body. After making a journal entry on July 14th, I evaluated how he fought endlessly for society. Soldier Matthew J. Johnson died today in Operation Enduring Freedom, Afghanistan War 2010. He had not died alone since images of other soldiers frequently appeared on BBC News television screen. Haunting and torturous experience they underwent remained in my mind. The nagging memory prompted me to think more about the political interests of nations, which made innocent men like Mathew die. It is unfair that while feigned authorities rule, soldiers try to pursue and execute interests of other people. I felt the need to take on responsibility to raise awarene ss. This memory called me to get out of my comfort zone. One Sunday afternoon, as I was studying for my final 9th grade exam, I exploded. I could barely concentrate since the heavy burden of why should it happen this way? was weighing heavily on me. I lost my countenance and I needed to share my feelings with somebody. I went downstairs, looking for someone to share my feelings with. On my way down, I was having an argument with myself. Although I promised myself to appreciate peoples advice and to turn their passion into constructive emotions, I was already tired of empty opinions and adults attempts to deflate my dreams and control my self-expression. Let me understand you, honey, my father said, why are you upset?. Peoples lack of international responsibility makes me furious was all that came out of my mouth. My father tried to calm me down, when I desperately explained my disappointment with peoples indifference towards international responsibilities, but he did not succeed. People only care about themselves, I concluded, storming out of the door. Nonetheless, several months after this event, I began looking for an explanation of peoples selfishness. I suddenly sensed an enlightenment, knowledgeability and some relief. The fact is people care more about themselves and their individual lives and know little about international concerns. I realized that I was unconsciously shaped by society in which personal interest supersedes morality and, as a result, I felt uncomfortably out of place. When people like dad takee care of their family responsibilities, forgetting everything about fallen soldiers like Mathew Johnson, they are still regarded as good citizens. I could not help thinking about paltry moral standards of small society. The truth was that highlighting others passivity helped me to hide mine. I supposed that the same social patterns could also pertain to me, but I refused to accept the concept of responsibility as newfound limitation. From my perspective, responsibility was not just personal, but also political and even international. I never thought of a dramatic experience of an epiphany that I would come to terms with reality, but that Sunday afternoon, I saw the light. The feeling denoted the start of my quest to bring change to the world. I knew that my efforts would be inconsequential if I attacked the system wholly. Eventually, I knew that knowledge regarding international politics was my strongest weapon. Owing to that occasion, I decided to transform myself. I started to work with many people, volunteered in political projects, and created a website that helps people understand international politics. Finally, I realized that I had to change myself in order to change the world. Hence, I liberated my mind from personal, cultural and family ties to become a global citizen. Nothing changed in the world that day, except me. Buy custom Application Essay essay

Saturday, October 19, 2019

How to maintain effective accountability in project management Essay

How to maintain effective accountability in project management - Essay Example Hence, since most projects are implemented by teams whose heart is performance delivery, project managers need to be accountable to their teams and other project shareholders by ensuring they are empowered and dynamic. Accountability is undoubtedly one of the most important factors involved in the critical path of ensuring project managers account for the efforts of his or her team. The need for accountability in project management is to make sure that all finances and project resources are well utilized throughout a project life cycle (Barron & Barron, 2011). Hence, the ability of project managers to easily avail project data to the clients is important for ensuring good client relationships are maintained as well as establishing trust in the used methodologies. Therefore, accountability is very important to the involved teams because it ensures accountability is kept amongst project team members, a situation which prevents resentment in the project as well as helping to maintain mo rale (Gunlach, 2009). However, in order to make sure that accountability is maintained in project management there are issues which must be focused on throughout the project period. Firstly, one of such things involves maintaining effective communication within the project team and other stakeholders such as the sponsors or clients (Barron & Barron, 2011). Thus, since project management is usually a team effort, emphasis should always be placed on collaboration and communication in order to make sure everyone involved in the project can appropriately account for the allocated resources such as funds, labour, time, and so on. The significance of communication on maintaining effective accountability in management of projects is because it allows fast and easy process of making enquiries where some issues are not well understood. In addition, it also facilitates easy way of responding to concerns raised by colleagues in the project team as well as sponsors of the project or clients. Th erefore, in order to ensure accountability throughout the life cycle of a project, effective communication should be emphasized on because it is the only most important tool for the manager of the project and his or her team members (Gunlach, 2009). This is due to the fact that apart from helping in addressing concerns by team members and clients it also facilitates an easy way of addressing other obstacles to the project such as overlapping responsibilities, changes in project scope, complex integration as well as decentralization of the decision-making processes all of which pose potential conflicts in the project (Ten Step, n.d.). Secondly, maintaining effective accountability in management of any project requires establishment of the necessary project controls whereby planning plays the most significant role (Barron & Barron, 2011). This is mainly because it has been ascertained through experience, that planning for a project long before it commences lays the groundwork for acco untability from the project managers and project team as well as ensuring successful completion of the project. Thus, maintaining effective accountability in management of any project and its successful implementation and performance are highly depended on appropriate planning (Gunlach, 2009). In addition, execution of a project is

Friday, October 18, 2019

(Choose the Topic) Essay Example | Topics and Well Written Essays - 750 words

(Choose the Topic) - Essay Example The story subsequently follows these dissenters, Bernard and Lenina, as they meet a guy named John who was born and fostered outside the bounds of society. While World State has advanced a nearly complete utopian vision, one may doubt if the individuals in this society are truly fulfilled. This essay implements Maslow’s hierarchy of needs in examining the extent that the characters in the text have achieved self-actualization. Abraham Maslow was a 20th century humanist psychologist who posited a hierarchy of needs at the center of human motivation. Maslow’s needs begin with physiological needs at the bottom (Maslow 370). After the individual has attained these needs they move to safety, love/belonging, and esteem needs (Maslow 370). Finally, the individual enters the self-actualization stage of existence, where they have attained all the underlining needs (Maslow. 374). The characters in Brave New World demonstrate varying levels on this hierarchy. One of the most notab le characters in these regards is John. While Bernard is the predominant character in the novel, after the visit to the reservation John becomes the central focus. John is unique in terms of psychological perspectives because he is a savage that developed outside of World State. In terms of John’s physiological needs, for the most part these are taken care of. ... Rather than embrace facts and reality citizens in World State regularly take soma. John instead rejects this indicating, â€Å"I don't want comfort. I want God, I want poetry, I want real danger, I want freedom, I want goodness. I want sin† (Huxley 230). John’s rejection of the inoculation of society and his embracement of poetry and danger and freedom, indicate a higher degree of self-actualization that the typical World State citizen. Even while John demonstrates a higher degree of self-actualization than other characters his needs are perhaps not those that are most satiated throughout the novel. Instead it appears that Lenina, who largely embraces World State society, has many of her needs taken care. Lenina’s physiological, safety, love/belonging, and esteem needs are taken care of. This is contrasted with John who struggles at times with many of these needs. Lenina’s embracement of soma further contributes to her happiness, as soma seems to function to ensure a general balance over existence. Lenina actively embraces hypnopaedic phrases in response to Bernard’s voiced despondency, stating, â€Å"Everybody’s happy nowadays†¦Every one works for every one else . . . When the individual feels, the community reels†¦Ã¢â‚¬  (Huxley 34). In this way Lenina’s embracement of these themes seems to indicate that she is at least partially content in the World State. The argument might be made, however, that Lenina’s lack of self-actualization results in her intermittent need for soma. One considers Bernard’s achievement of needs on the hierarchy of needs as lacking Lenina’s contentment, yet achieving a degree of self-actualization through his scientific investigation of John. In this way Bernard was implementing his creative and

Othello Essay Example | Topics and Well Written Essays - 500 words - 9

Othello - Essay Example Persons hypersensitive to racial prejudice could make the charge that this eye-rolling, pink-lipped, tongue-thrusting, coal-black Puppy is a demonstration of the most rear-guard white mans concept of the primitive Negro. Race relations in the 21st century are not stained compared to the previous century, particularly in 1960s when the film was shot. Times have changed and the definition of appropriate sensitive language has also transformed whereas in the ancient times those hypersensitive to race issues would meet such portrayal; presently, such would be concluded to be genuine talents. Sensitive behaviour has also changed with the change in time; in fact, the Time magazine had complained that Laurence had overdone the acting and the makeup, equating that to a mere mummy singer and that the depiction was a modern stereotype (Arogundae). In 1960, there was an aggressive agitation for black rights in the United States of America and any white man stereotypical portrayal of a black man would be adjudged racial. In the present times his portrayal of the Othello character in the movie would not be deemed racist, he plays the role of Othello by showing that the character even though valued for his military dexterity and nobility of character, he portrays a culture in which racial tensions, particularly questions about the mixing of races through intermarriage. Additionally, Shakespeare had made the character to have an ambiguous race, the character was not specifically black, but had that likelihood. However, the character in the movie was without doubt black, with the typical African crinkled hair; he additionally imitated black Caribbean immigrants in England such as rolling his eyes and smacking of pink lips. A white man blackening typically portrayed the primitive ways of the black people, and many people argued agai nst

Modern Translation Technology Essay Example | Topics and Well Written Essays - 3000 words

Modern Translation Technology - Essay Example Translation is the transfer of literal information from one form to a form desired by the user. This may include the transfer of information from one language to another or the interpretation of information from a technical form to a form that is familiar with the recipient; for example the translation of scientific and technical information to a layman language. Technology is at the heart of all these activities with the language translating software playing a major role in translation. With the widespread use of smartphone and other computerized resources, they are used to translate various print materials to electronic materials (Cronin 2013, p.1). The use of copyrighted materials in the various website has created controversy with the technology enabling the access of copyrighted electronic material (Song 2011, p.58). This has led to the infringement of the rights of the owners of the material. The increased demand for translation in line with the 24hour economy has made increase d application of technology in translation is inevitable. Technology has had its toll in translation and more effects are expected in the near future. Anybody can translate information, though this may lead to distortion of the original information in the process thus the need for professional translators. Therefore, not all translators are professional and not all information available in the translation software is always correct since they are all created by human beings and are likely to have errors, thus a professional translator should be consulted to ensure the correct information is passed on. Translation has, therefore, become one of the basic language skills in the modern world.Translation is an age-old art that has been practiced since time immemorial. The lack of recognition of translated work may have set a shadow on translation for a very long time until recently when technology started being applied in translation.

Thursday, October 17, 2019

ACCOR Group's Expansion Strategy Research Paper

ACCOR Group's Expansion Strategy - Research Paper Example 8,121 + 6.8 EBITDAR 2,321 11.4 EBITDAR margin 28.6% 1.2 Operating profit Before tax 907 24.8 The growth rates for the company in revenues for year 2007 were as per the following: Revenues + 6.5% Expansion + 4.3% Impacts of the currency (decline of dollar against Euro) - 2.7% Disposals - 1.3% Growth rate + 6.8% Analysis Amnt In m 9000 - 8000 -7000 - 6000 - - 5000 - 4000 - 3000 - 2000 - 1000 - Revenue EBITDAR Profit (before tax) Graph of the two financial statements; Revenue, EBITDAR, profit (before tax) Year 2004 Year 2007 11 -10 - 9.0 - 8.0 -7.0 - 6.0 - - % 5.0 - 4.0 - 3.0 - 2.0 - 1.0 - Revenue EBITDAR Profit (before tax) Graph of the two financial statements; Revenue (reported change), EBITDAR (reported change), profit before tax (reported change) Year 2004 Year 2007 i. Before implementation of the new strategies As per the above table, the company's profit before taxation amounted to 592 million which was13.2% for that year. In the same year, the company's consolidated revenues shot up by 4.3% which were the same as moving from 295 million to 7,123 million. Not including...While carrying out the research regarding ACCOR group of companies, importance of selecting the appropriate paradigm is emphasized. This includes the opinions on how to carry out the research as well as the necessary approach of data collection and analysis. The methods used to collect the appropriate data included a quantitative data collection approach: getting the relevant data from the company's management information systems where it has provided its financial reports before the implementation of the strategies and after this period. The collected data is then analyzed using tables and charts in order to draw conclusion on whether the strategies made any changes to the company. There is also analysis of the strategies used by two other major rivals of ACCOR group of companies which are used to corroborate the hypothesis to be deductive. Roy 1995As per the above table, the company's profit before taxation amounted to 592 million which was13.2% for that year. In the same year, the company's consolidated revenues shot up by 4.3% which were the same as moving from 295 million to 7,123 million. Not including the effects of transitions in scope of exchange rates and consolidation, the revenues went up by 4.6% for the same year as well as 5.1% in the fourth section of the year. This indicated the company's demand in the group's activities.

Cause And Effect Paper Essay Example | Topics and Well Written Essays - 500 words

Cause And Effect Paper - Essay Example Before the internet revolution era, available lines for communication were not only expensive but also slow and cumbersome; these lines were also subject to physical damages and other interference hampering their applications. However, revolutionized internet allows million users to share costs of high-performing circuits, reduce the number of lines and provide automatic re-routing of information in case of any interference. Internet has significantly contributed to effective and timely communication across the globe. Some of its significant contributions include timely sharing of information. Sharing information and occurrences across the world is an undemanding experience. Access to global news is easy using internet connectivity. Social networking renders it easy to access news through platforms such as Google+, Twitter and Facebook. Besides easy sharing of information, obtaining relevant and educational literature from online scholarly databases is easier and efficient for its users to access than before internet invention. Nearly all forms of literature are now easily retrievable from the internet. Easier retrieval of information from the internet is a cause of revolution in the education sector (Livingstone, 2009). Learners can do online research using information from Google books, academic database and other scholarly sites. Communications within cities, across borders and overseas is now easier and faster with internet than before the invention of internet. E-mail services render sending of information easier, faster and cheaper compared to conventional methods. The internet is a platform that provides convenience undertaking online transactions. Online business transactions improve lives; business partners need not to physically acquire goods and services after invent of online transactions. In some insta nces, people need no to be physically present at

Wednesday, October 16, 2019

Modern Translation Technology Essay Example | Topics and Well Written Essays - 3000 words

Modern Translation Technology - Essay Example Translation is the transfer of literal information from one form to a form desired by the user. This may include the transfer of information from one language to another or the interpretation of information from a technical form to a form that is familiar with the recipient; for example the translation of scientific and technical information to a layman language. Technology is at the heart of all these activities with the language translating software playing a major role in translation. With the widespread use of smartphone and other computerized resources, they are used to translate various print materials to electronic materials (Cronin 2013, p.1). The use of copyrighted materials in the various website has created controversy with the technology enabling the access of copyrighted electronic material (Song 2011, p.58). This has led to the infringement of the rights of the owners of the material. The increased demand for translation in line with the 24hour economy has made increase d application of technology in translation is inevitable. Technology has had its toll in translation and more effects are expected in the near future. Anybody can translate information, though this may lead to distortion of the original information in the process thus the need for professional translators. Therefore, not all translators are professional and not all information available in the translation software is always correct since they are all created by human beings and are likely to have errors, thus a professional translator should be consulted to ensure the correct information is passed on. Translation has, therefore, become one of the basic language skills in the modern world.Translation is an age-old art that has been practiced since time immemorial. The lack of recognition of translated work may have set a shadow on translation for a very long time until recently when technology started being applied in translation.

Tuesday, October 15, 2019

Cause And Effect Paper Essay Example | Topics and Well Written Essays - 500 words

Cause And Effect Paper - Essay Example Before the internet revolution era, available lines for communication were not only expensive but also slow and cumbersome; these lines were also subject to physical damages and other interference hampering their applications. However, revolutionized internet allows million users to share costs of high-performing circuits, reduce the number of lines and provide automatic re-routing of information in case of any interference. Internet has significantly contributed to effective and timely communication across the globe. Some of its significant contributions include timely sharing of information. Sharing information and occurrences across the world is an undemanding experience. Access to global news is easy using internet connectivity. Social networking renders it easy to access news through platforms such as Google+, Twitter and Facebook. Besides easy sharing of information, obtaining relevant and educational literature from online scholarly databases is easier and efficient for its users to access than before internet invention. Nearly all forms of literature are now easily retrievable from the internet. Easier retrieval of information from the internet is a cause of revolution in the education sector (Livingstone, 2009). Learners can do online research using information from Google books, academic database and other scholarly sites. Communications within cities, across borders and overseas is now easier and faster with internet than before the invention of internet. E-mail services render sending of information easier, faster and cheaper compared to conventional methods. The internet is a platform that provides convenience undertaking online transactions. Online business transactions improve lives; business partners need not to physically acquire goods and services after invent of online transactions. In some insta nces, people need no to be physically present at

The Validity of Recovered Memories Essay Example for Free

The Validity of Recovered Memories Essay The sudden recovery of repressed memories from a traumatic event such as childhood sexual abuse can be both validating and confusing for clients that are seeking help with various problems. These new memories might be able to help client identify the cause of their feelings and issues that are affecting their life. However for others it can be a very difficult time because of the conflicting emotions about the abuser. Worst of all when dealing with the recovery of repressed memories they may be all together false. The accuracy of recovered memories in regards to sexual abuse is low and can come with significant consequences. These false memories can be very harmful to the client as well as anyone falsely accused of sexual abuse. In the late nineteenth century Sigmund Freud began using the term repression to explain how memories of a traumatic event can be inaccessible for a period of time and then return at a later date sometimes suddenly while during other times slowly developing over a period of time into a more clear memory. It was believed that repressed memories or motivated forgetting was a defense mechanism for people who needed to protect themself from the harmful and painful memories of a traumatic experience (Boag, 2006). More recently repressed memories being recovered about childhood sexual abuse (CSA) has caused more studies to be conducted to determine if the memories being recovered are valid or if false memories are be produced due to the fact that â€Å"human memories are vulnerable to distortion, that illusory memories can be created and therapies designed to recover memories of repressed abuse may inadvertently foster false memories of trauma† (Clancy, Schacter, McNally, Pitman, 2000, p. 26) Some therapist believes that memories that have been repressed can be successfully recovered with therapy and that these memories accurately portray the past events to the extent that legal action can be taken. Some states have even ratified laws to accommodate the recovery of repressed memories so that believed offender of CSA can be prosecuted once the client has recovered their memory of the traumatic event (Partlett Nurcombe, 1998). These memories can be recovered using various therapies such as hypnosis, dream interpretation, guided imagery and truth serum. Many of the therapies used for recovering repressed memories include having the client  in a relaxed state so that the memories can then be recalled more effectively. However a fallacy can occur when trying to help a client recover a repressed memory. If a therapist explains how a type of therapy such as hypnosis is helpful in recovering memories of CSA the client may then remember such instances of abuse simply because th ey believe the therapy works, so it does. ***As with any type of memory recovered memories are also subject to corruption and can vary from partially true to completely false. Recovered memories can be a fabrication of events and details that never actually took place. Because of these false memories being about such extreme information such as CSA an organization called False Memory Foundation was created in 1992 to help those who have been accused of such acts. The foundation will help the accused get in touch with attorneys that specialize in cases regarding repressed and recovered memories (Lein, 1999). For example a women’s recovered memory of being forced to drink blood as a child was later discovered to be nothing more than her drinking from a communion cup as a child. The wine she drank was explained to her as the blood of Christ when going to church and as a child thought the wine to be of real blood. This caused what appeared to be a traumatic memory but turned out to be a memory that was explained easily and while the memory was true the actual act of drinking blood was not (Pope Brown, 1996). At times the memories that are recovered are later found to be true with evidence from an outside source such as collaboration from another family member that was present at the time of the abuse or documentation such as diary’s kept by the abuser. Currently there is not a clear black and white understanding of recovered memories so theses type of therapies will continued to be practiced but should be done so cautiously. Not all memories recovered are false making it difficult for some to decide how they feel about the issue of repressed and recovered memories. I believe that memories can be forgotten and later recalled with prompting from exposure to an outside stimulus that brings the memory to the surface again. However because of the number of ways a memory can be corrupted I am forced to doubt the validity of recovered memories. Without substantiated proof that a memory that has been recovered is true I feel it would be unjust to presume that memory is truly factual, especially when accusation  of CSA can be so traumatic for not only the client but for their family as well. In most cases clients accuse their fathers of the assault which result in disruption of the family and for some court cases (Groman, 2008). The practice of therapist trying to help clients recover repressed memories can become unethical extremely quickly depending on how the therapy progresses. Therapists have been sued and found guilty of implanting false memories (Stocks, 1998). It is important the therapist use open ended questions that allow the client to proceed with the sessions as they see fit rather than using suggestive or leading questions (Holmes, 2006). â€Å"Clients can be asked if they had any experiences in childhood that they found sexually inappropriate, uncomfortable, or frightening† (Pope Brown, 1996, p. 158). However informing a client that their symptoms present in a way that the therapist believes the client has been a victim of CSA is a leading statement and can begin an unethical path to false recovered memories. Participation in survival groups can also cause these false memories of CSA. These memories appear to be real to the client however groups can cause conformity and may be causing false memories in the absence of any real CSA memories to be recovered(Stocks, 1998). Asch (1956) also demonstrated how groups can cause conformity to the point that members will make reports that are inconsistent with observable facts. Also with the therapist being in a position of authority clients can feel the desire to please their therapist and will push them self to remember the tragic memory believed to be repressed in order to satisfy the therapist. Having a therapist in anyway push or persuade a client in to believing that they have repressed memories of CSA or any other repressed memory that needs to be recovered is extremely unethical due to the highly damaging effects this can have on the client’s life. Because of these and other ethical concerns some organizations have decided to create a code of ethics in regards to repressed and recovered memories. This code of ethics gives therapist a place to seek help when ethical dilemmas arise. Giving therapist a variety of choices and steps they can take if presented with such a case (Pettifor, Crozier, Ch ew, 2001). While it is important for people who have either actually repressed a memory of CSA or have been afraid to come forward before that point to have the ability to peruse their offender in court it is also important to remember  the consequences of false memories. When a client recovers a false memory of CSA not only will the client have to deal with the emotions that come with that false memory but they can also become cut off from their family. For some the false memory has become so over whelming that they begin to hurt themselves with suicidal thoughts, self-mutilation, sleep disorders, and nightmares in an attempt to handle the information they have recovered and perceive as true. These symptoms appear to lessen after terminating therapy (Stocks, 1998) Along with the client the accused person must also deal with ramifications of the false memories. The accused can be taken to court and put in jail if found guilty. Because of the lack of imperial data supporting that a significant number of recovered memories are indeed factual I find myself unable to support a therapy that can be so damaging to everyone involved from the client, to therapist and the family of both the client and the therapist. If false memories are produced and legal action is taken against the presumed abuser or the therapist for implanting false memories regardless if it was done purposefully it can cause damaging consequences for all parties involved. References Asch, S. E. (t956). Studies of independence and conformity: 1. A minority of one against a unanimous majority. Psychological Monographs, 70(9), 1-70. Boag, S. (2006). Freudian repression, the common view, and pathological science. Review of General Psychology, 10(1), 74-86. Clancy, S. A., Schacter, D. L., McNally, R. J., Pitman, R. K. (2000). False recognition in women reporting recovered memories of sexual abuse. Psychological Science, 11(1), 26-31. Gorman, G. (2008). The recovered memory controversy—A new perspective. European Journal of Clinical Hypnosis, 8(1), 22-31. Holmes, L. (May 06, 2006). The debate over recovered memories In About.com. Retrieved December 3, 2012, from http://mentalhealth.about.com/cs/dissociative/a/dabaterec.htm. Lein, J. (1999). Recovered memories: context and controversy. Social Work, 44(5), 481-484. Partlett, D.F., Nurcombe, B. (1998). Recovered memories of child sexual abuse and liability: Society, Science, and the law in a comparative setting. Psychology, Publice Policy, and Law, 4(4), 1253-1306. Pettifor, J., Crozier, S., Chew, J. (2001). Recovered memories: Ethical Guidelines to Support Professionals. Journal of child Sexual abuse, 10(2), 1. Pope, K. S., Brown, L. S. (1996). Clinical work with people who report recovered memories. In Recovered memories of abuse: Assessment, therapy, forensics (pp. 145-205). Washington, DC US: American Psychological Association. Stocks, J.T. (1998). Recovered memory therapy: A dubious practice technique. Social Work, 43(5), 423-436.

Monday, October 14, 2019

Operation Of TWT And Magnetrons

Operation Of TWT And Magnetrons A traveling-wave tube (TWT) is an electronic device used to amplify radio frequency signals to high power, usually in an electronic assembly known as a traveling-wave tube amplifier (TWTA). The bandwidth of a broadband TWT can be as high as three octaves, although tuned (narrowband) versions exist, and operating frequencies range from 300Â  MHz to 50Â  GHz. The voltage gain of the tube can be of the order of 70 decibels. Traveling-Wave Tubes Traveling-wave tubes (TWTs) are high-gain, low- noise, wide and width microwave amplifiers, capable of gains of 40 dB or more, with bandwidths of over an octave. (A bandwidth of 1 octave is one in which the upper frequency is twice the lower frequency.) TWTs have been designed for frequencies as low as 300 MHz and as high as 50 GHz. The primary use for TWTs is voltage amplification (although high-power TWTs, with characteristics similar to those of a power klystron, have been developed). Their wide bandwidth and low-noise characteristics make them ideal for use as RF amplifiers. CONSTRUCTION: The device is an elongated vacuum tube with an electron gun (a heated cathode that emits electrons) at one end. A magnetic containment field around the tube focuses the electrons into a beam, which then passes down the middle of a wire helix that stretches from the RF input to the RF output, the electron beam finally striking a collector at the other end. A directional coupler, which can be either a waveguide or an electromagnetic coil, fed with the low-powered radio signal that is to be amplified, is positioned near the emitter, and induces a current into the helix. The helix acts as a delay line, in which the RF signal travels at near the same speed along the tube as the electron beam. The electromagnetic field due to the RF signal in the helix interacts with the electron beam, causing bunching of the electrons (an effect called velocity modulation), and the electromagnetic field due to the beam current then induces more current back into the helix (i.e. the current builds up and thus is amplified as it passes down). A second directional coupler, positioned near the collector, receives an amplified version of the input signal from the far end of the helix. An attenuator placed on the helix, usually between the input and output helicies, prevents reflected wave from travelling back to the cathode. Higher powered TWTs usually contain beryllium oxide ceramic as both a helix support rod and in some cases, as an electron collector for the TWT because of its special electrical, mechanical, and thermal properties. OPERATION AND WORKING While the electron beam in a klystron travels primarily in regions free of RF electric fields, the beam in a TWT is continually inter- acting with an RF electric field propagating along an external circuit surrounding the beam. To obtain amplification, the TWT must propagate a wave whose phase velocity is nearly synchronous with the dc velocity of the electron beam. It is difficult to accelerate the beam to greater than approximately one- fifth the velocity of light. Therefore, the forward velocity of the RF field propagating along the helix must be reduced to nearly that of the beam. The phase velocity in a waveguide, which is uniform in the direction of propagation, is always greater than the velocity of light. However, this velocity can be reduced below the velocity of light by introducing a periodic variation of the circuit in the direction of propagation. The simplest form of variation is obtained by wrapping the circuit in the form of a helix, whose pitch is equal to the desire d slowing factor. TWT MIXER.- A TWT is also used as a micro- wave mixer. By virtue of its wide bandwidth, the TWT can accommodate the frequencies generated by the heterodyning process (provided that the frequencies have been chosen to be within the range of the tube). The desired frequency is selected by the use of a filter on the output of the helix. A TWT mixer has the added advantage of providing gain as well as simply acting as a mixer. TWT MODULATION.- A TWT can be modulated by applying the modulating signal to a modulator grid. The modulator grid can be used to turn the electron beam on and off, as in pulsed microwave applications, or to control the density of the beam and its ability to transfer energy to the traveling wave. Thus, the grid can be used to amplitude modulate the output. TWT OSCILLATOR.- A forward-wave TWT can be constructed to serve as a microwave oscillator. Physically, a TWT amplifier and an oscillator differ in two major ways. The helix of the oscillator is longer than that of the amplifier, and there is no input connection to the oscillator. TWT oscillators are often called backward-wave oscillators (BWOs) or carcintrons. The Traveling-Wave Tube The TRAVELING-WAVE TUBE (twt) is a high-gain, low-noise, wide-bandwidth microwave amplifier. It is capable of gains greater than 40 dB with bandwidths exceeding an octave. (A bandwidth of 1 octave is one in which the upper frequency is twice the lower frequency.) Traveling-wave tubes have been designed for frequencies as low as 300 megahertz and as high as 50 gigahertz. The twt is primarily a voltage amplifier. The wide-bandwidth and low-noise characteristics make the twt ideal for use as an RF amplifier in microwave equipment. The physical construction of a typical twt is shown in figure 2-13. Fig-2 The twt contains an electron gun which produces and then accelerates an electron beam along the axis of the tube. The surrounding magnet provides a magnetic field along the axis of the tube to focus the electrons into a tight beam. The HELIX, at the center of the tube, is a coiled wire that provides a low-impedance transmission line for the RF energy within the tube. The RF input and output are coupled onto and removed from the helix by directional couplers that have no physical connection to the helix. If the RF energy is transported on coaxial cables, the coaxial couplers are wound in a helical manner similar to that shown in figure 2. If the RF energy is transported in waveguides, waveguide directional couplers are used. The attenuator prevents any reflected waves from traveling back down the helix. Physical construction of a twt. A simplified version of twt operation is shown in fig below. In the figure, an electron beam is passing along a nonresonant transmission line represente d by a straight wire. The input to the transmission line is an RF wave which travels on the line from input to output. The line will transport a wide range of RF frequencies if it is terminated in the characteristic impedance of the line. The electromagnetic waves traveling down the line produce electric fields that interact with the electrons of the beam. Fig:-3 If the electrons of the beam were accelerated to travel faster than the waves traveling on the wire, bunching would occur through the effect of velocity modulation. Velocity modulation would be caused by the interaction between the traveling-wave fields and the electron beam. Bunching would cause the electrons to give up energy to the traveling wave if the fields were of the correct polarity to slow down the bunches. The energy from the bunches would increase the amplitude of the traveling wave in a progressive action that would take place all along the length of the twt, as shown in figure . However, because the waves travel along the wire at the speed of light, the simple twt shown in figure 3 will not work. At present no way is known to accelerate an electron beam to the speed of light. Since the electron beam cannot travel faster than the wave on the wire, bunching will not take place and the tube will not work. The twt is therefore designed with a delay structure to slow the tra veling wave down to or below the speed of the electrons in the beam. A common twt delay structure is a wire, wound in the form of a long coil or helix, as shown in figure , view (A). The shape of the helix slows the effective velocity of the wave along the common axis of the helix and the tube to about one-tenth the speed of light. The wave still travels down the helix wire at the speed of light, but the coiled shape causes the wave to travel a much greater total distance than the electron beam. The speed at which the wave travels down the tube can be varied by changing the number of turns or the diameter of the turns in the helix wire. The helical delay structure works well because it has the added advantage of causing a large proportion of electric fields that are parallel to the electron beam. The parallel fields provide maximum interaction between the fields and the electron beam. In a typical twt, the electron beam is directed down the center of the helix while, at the same time, an RF signal is coupled onto the helix. The electrons of the beam are velocity-modulated by the electric fields produced by the RF signal. Amplification begins as the electron bunches form and release energy to the signal on the helix. The slightly amplified signal causes a denser electron bunch which, in turn, amplifies the signal even more. The amplification process is continuous as the RF wave and the electron beam travel down the length of the tube. Any portion of the twt output signal that reflects back to the input will cause oscillations within the tube which results in a decrease in amplification. Attenuators are placed along the length of the helix to prevent reflections from reaching the input. The attenuator causes a loss in amplitude, as can be seen in figure , view (B), but it can be placed so as to minimize losses while still isolating the input from the output. The rel atively low efficiency of the twt partially offsets the advantages of high gain and wide bandwidth. The internal attenuator reduces the gain of the tube, and the power required to energize the focusing magnet is an operational loss that cannot be recovered. The twt also produces heat which must be dissipated by either air-conditioning or liquid-cooling systems. All of these factors reduce the overall efficiency of the twt, but the advantages of high gain and wide bandwidth are usually enough to overcome the disadvantages. THE MAGNETRON The MAGNETRON, shown in figure 4-A, is a self-contained microwave oscillator that operates differently from the linear-beam tubes, such as the twt and the klystron. Figure 4-B is a simplified drawing of the magnetron. CROSSED-ELECTRON and MAGNETIC fields are used in the magnetron to produce the high-power output required in radar and communications equipment. Figure 4.A.-Magnetron Figure4 b.-Magnetron The magnetron is classed as a diode because it has no grid. A magnetic field located in the space between the plate (anode) and the cathode serves as a grid. The plate of a magnetron does not have the same physical appearance as the plate of an ordinary electron tube. Since conventional inductive- capacitive (LC) networks become impractical at microwave frequencies, the plate is fabricated into a cylindrical copper block containing resonant cavities which serve as tuned circuits. The magnetron base differs considerably from the conventional tube base. The magnetron base is short in length and has large diameter leads that are carefully sealed into the tube and shielded. The cathode and filament are at the center of the tube and are supported by the filament leads. The filament leads are large and rigid enough to keep the cathode and filament structure fixed in position. The output lead is usually a probe or loop extending into one of the tuned cavities and coupled into a waveguide or coaxial line. The plate structure, shown in figure 5, is a solid block of copper. The cylindrical holes around its circumference are resonant cavities. A narrow slot runs from each cavity into the central portion of the tube dividing the inner structure into as many segments as there are cavities. Alternate segments are strapped together to put the cavities in parallel with regard to the output. The cavities control the output frequency. The straps are circular, metal bands that are placed across the top of the block at the entrance slots to the cavities. Since the cathode must operate at high power, it must be fairly large and must also be able to withstand high operating temperatures. It must also have good emission characteristics, particularly under return bombardment by the electrons. This is because most of the output power is provided by the large number of electrons that are emitted when high-velocity electrons return to strike the cathode. The cathode is indirectly heated and is constructed of a high- emission material. The open space between the plate and the cathode is called the INTERACTION SPACE. In this space the electric and magnetic fields interact to exert force upon the electrons. Figure 5.-Cutaway view of a magnetron The magnetic field is usually provided by a strong, permanent magnet mounted around the magnetron so that the magnetic field is parallel with the axis of the cathode. The cathode is mounted in the center of the interaction space. BASIC MAGNETRON OPERATION.-Magnetron theory of operation is based on the motion of electrons under the influence of combined electric and magnetic fields. The following information presents the laws governing this motion. The direction of an electric field is from the positive electrode to the negative electrode. The law governing the motion of an electron in an electric field (E field) states: The force exerted by an electric field on an electron is proportional to the strength of the field. Electrons tend to move from a point of negative potential toward a positive potential. This is shown in figure 6. In other words, electrons tend to move against the E field. When an electron is being accelerated by an E field, as shown in figure 6, energy is taken from the field by the electron. Figure 6.-Electron motion in an electric field The law of motion of an electron in a magnetic field (H field) states: The force exerted on an electron in a magnetic field is at right angles to both the field and the path of the electron. The direction of the force is such that the electron trajectories are clockwise when viewed in the direction of the magnetic field. This is shown in figure 7. Figure 7.-Electron motion in a magnetic field In figure 7, assume that a south pole is below the figure and a north pole is above the figure so that the magnetic field is going into the paper. When an electron is moving through space, a magnetic field builds around the electron just as it would around a wire when electrons are flowing through a wire. In figure 7 the magnetic field around the moving electron adds to the permanent magnetic field on the left side of the electrons path and subtracts from the permanent magnetic field on the right side. This action weakens the field on the right side; therefore, the electron path bends to the right (clockwise). If the strength of the magnetic field is increased, the path of the electron will have a sharper bend. Likewise, if the velocity of the electron increases, the field around it increases and the path will bend more sharply. A schematic diagram of a basic magnetron is shown in figure 8A. The tube consists of a cylindrical plate with a cathode placed along the center axis of the p late. The tuned circuit is made up of cavities in which oscillations take place and are physically located in the plate. When no magnetic field exists, heating the cathode results in a uniform and direct movement of the field from the cathode to the plate, as illustrated in figure 8B. However, as the magnetic field surrounding the tube is increased, a single electron is affected, as shown in figure 9. In figure 9, view (A), the magnetic field has been increased to a point where the electron proceeds to the plate in a curve rather than a direct path. Figure 8A.-Basic magnetron. SIDE VIEW Figure 9.-Effect of a magnetic field on a single electron In view (B) of figure 9, the magnetic field has reached a value great enough to cause the electron to just miss the plate and return to the filament in a circular orbit. This value is the CRITICAL VALUE of field strength. In view (C), the value of the field strength has been increased to a point beyond the critical value; the electron is made to travel to the cathode in a circular path of smaller diameter. View (D) of figure 9. shows how the magnetron plate current varies under the influence of the varying magnetic field. In view (A), the electron flow reaches the plate, so a large amount of plate current is flowing. However, when the critical field value is reached, as shown in view (B), the electrons are deflected away from the plate and the plate current then drops quickly to a very small value. When the field strength is made still greater, as shown in view (C), the plate current drops to zero. When the magnetron is adjusted to the cutoff, or critical value of the plate current, and the electrons just fail to reach the plate in their circular motion, it can produce oscillations at microwave frequencies. These oscillations are caused by the currents induced electrostatically by the moving electrons. The frequency is determined by the time it takes the electrons to travel from the cathode toward the plate and back again. A transfer of microwave energy to a load is made possible by connecting an external circuit between the cathode and the plate of the magnetron. Magnetron oscillators are divided into two classes: NEGATIVE-RESISTANCE and ELECTRON-RESONANCE MAGNETRON OSCILLATORS. A negative-resistance magnetron oscillator is operated by a static negative resistance between its electrodes. This oscillator has a frequency equal to the frequency of the tuned circuit connected to the tube. An electron-resonance magnetron oscillator is operated by the electron transit time required for electrons to travel from cathode to plate. This oscillator is capable of generati ng very large peak power outputs at frequencies in the thousands of megahertz. Although its average power output over a period of time is low, it can provide very high-powered oscillations in short bursts of pulses.