Tuesday, August 25, 2020
English Spelling is Not Total Chaos
English Spelling isn't Total Chaos English Spelling isn't Total Chaos English Spelling isn't Total Chaos By Maeve Maddox Daniels late fun spelling test made me consider English spelling. Google English spelling and youll get 23,300,000 hits. Visit a couple of the destinations and you will be told how silly, insane, preposterous, coldblooded, and needing change is English orthography. English spelling is more entangled than that of some different dialects, yet its not absolute mayhem. The weirdest spellings are those of the commonest words, so practice before long acclimates even little youngsters with the most sporadic structures. Generally speaking, there are unsurprising examples and rules to manage the spelling of most English words. It is difficult to cover all the phonetic realities of English spelling in one article, so hold on for a succession of articles (you can likewise check the spelling segment on TeachingIdeas.co.uk, which summarizes a large portion of the principles). First of all, Id like to bring up certain parts of the English letter set that lead to misconceptions about English orthography. The 26 letters of the English letter set are lacking to speak to the 44 or so sounds used to communicate in the English language. Composed English has made up for this absence of letters by concocting additional letters to speak to eight consonant sounds and seven vowel sounds that don't have letters of their own. For instance, the mix sh doesn't speak to the joined hints of/s/and/h/. The sound spoke to is/sh/, which is the sound heard toward the start of the word transport. Composed English has redressed, however overcompensated for its deficient letters in order. Various interchange spellings exist to speak to sounds previously spoke to by letters or letter mixes. This excess of spellings is an aftereffect of Englishs audacious propensity for bringing in words from different dialects. In numerous occasions new words brought along the spelling shows of the language of birthplace. Obviously English orthography requires more examination than that of other present day dialects. Remember, notwithstanding, that English language structure is more straightforward than most. You can utilize the time spared in examining the sentence structure to become familiar with the spelling framework! I hear many individuals confess to being not able to spell as though it were a hereditary imperfection. I guess that in a little level of the populace it might be. By and large, notwithstanding, poor spelling is the consequence of deficient data. In whole: the English letters in order has 26 letters; communicated in English uses 40+ discourse sounds; composed English utilizes 70 spelling images. English spelling is perplexing, yet learning 70 phonograms (sound images) and a couple of rules is a little cost to pay for the utilization of the gigantic jargon of English. Need to improve your English in a short time a day? Get a membership and begin getting our composing tips and activities day by day! Continue learning! Peruse the Spelling classification, check our famous posts, or pick a related post below:50 Synonyms for ââ¬Å"Leaderâ⬠Replacement for and substitution of50+ Words That Describe Animals (Including Humans)
Saturday, August 22, 2020
Mental Illness Essays (448 words) - Psychiatric Diagnosis
Psychological maladjustment Psychological maladjustment Psychological maladjustment is a confusion that is portrayed by unsettling influences in an individual's idea, feelings, or conduct. Dysfunctional behavior alludes to a wide assortment of disarranges, extending from those that cause mellow pain to those that debilitate an individual's capacity to work in day by day life. Many have attempted to make sense of the explanations behind psychological maladjustments. These reasons have been taken a gander at and thought of for a great many years. The natural viewpoint sees dysfunctional behavior as a real procedure. Where as the mental points of view think the job of an individual's childhood and condition are reasons for psychological instabilities. Specialists gauge that 24 percent of individuals more than eighteen in the United States experience the ill effects of a type of basic psychological maladjustment, for example, melancholy and fears. Studies have likewise demonstrated that 2.6 percent of grown-ups in the United States experience the ill effects of a type of serious type of dysfunctional behavior, for example, schizophrenia, alarm issue, or bipolar issue. More youthful individuals additionally experience the ill effects of psychological sicknesses a similar way that grown-ups do. 14 to 20 percent of people younger than eighteen experience the ill effects of an instance of psychological maladjustment. Studies demonstrate that 9 to 13 percent of youngsters between the ages of nine and seventeen experience the ill effects of a genuine enthusiastic aggravations, that disturbs the kid's every day life. Significant gloom is a serious issue. Side effects incorporate pull back from family or potentially companions, weight reduction, resting issues, visit crying, escaping defenseless, dreams, and visualizations. This ailment is typically analyzed during puberty; guardians may see grades dropping, poor mental self portrait, disturbed social relations, and self-destructive acts. This infection might be deadly if the individual gets self-destructive. Fear is where an individual has a silly dread of an item or circumstance. A few instances of fears are dread of flight, felines, statures, encased spaces, reptiles, and the most extreme is agoraphobia the dread to leave a sheltered spot, for example, home. Fears are analyzed personhows sings of a specific dread commonly. This can possibly influence an individual's life if the fear is serious. For instance, in the event that an individual has agoraphobia, dread of leaving a protected spot then such individual's reality would be confined. In the event that an individual has the dread ailurophobia, dread of statures then that individual can at present carry on with an ordinary life. This illness isn't deadly except if the individual becomes discouraged on account of being separated. Schizophrenia is an aggravation that makes you have misperceptions of the real world; this may likewise cause mental trips and hallucinations. Individual may likewise show deficient discourse designs, hindered social and word related working, and terrible individual cleanliness. This infection is normally analyzed at a youthful age. Family and additionally companions may see side effects.
Monday, July 27, 2020
Can Self-Help Help My Eating Disorder
Can Self-Help Help My Eating Disorder Eating Disorders Treatment Print Self-Help for Treating Your Eating Disorder By Lauren Muhlheim, PsyD, CEDS facebook twitter linkedin Lauren Muhlheim, PsyD, is a certified eating disorders expert and clinical psychologist who provides cognitive behavioral psychotherapy. Learn about our editorial policy Lauren Muhlheim, PsyD, CEDS Medically reviewed by Medically reviewed by Steven Gans, MD on August 31, 2015 Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital. Learn about our Medical Review Board Steven Gans, MD Updated on November 20, 2019 Tetra Images, Getty Images More in Eating Disorders Treatment Symptoms Diagnosis Awareness and Prevention Specialized treatment for eating disorders is expensive and can be hard to find. The good news: if you have bulimia nervosa, binge eating disorder, or subclinical versions of either of these, self-help may bridge the gap. Research shows self-help can be beneficial. Through the use of a manual, workbook, or smartphone or web-based platform, you can work through a series of steps to learn about your problem and develop skills to overcome and manage the disorder. Self-help, however, is not recommended for anorexia nervosa given the special medical needs of patients with this disorder. Not all self-help is equally effective. The enhanced version of cognitive behavioral therapy (CBT-E) is the most effective treatment for individuals with bulimia and binge eating disorder; outcome studies show that approximately 65% of people recover after 20 sessions of psychotherapy. Self-help approaches based on CBT have been the most studied. Pure Self-Help and Guided Self-Help In pure self-help, the patient works through the material entirely independent of the guidance of a professional. In contrast, guided self-help consists of self-help plus the support of another person or facilitator who may not be a professional eating disorder therapist. This support person can be, for example, a lay person or recovered person; support can be delivered in a variety of formats, such as in-person, over the phone, by text message, or over the internet. The frequency of support can vary but is usually less intensive than weekly psychotherapy. Pure self-help and guided self-help for eating disorders have proven effective for subsets of individuals with bulimia nervosa, binge eating disorder, and OSFED (Other Specified Feeding Eating Disorder). Of these, there is the most support for its use among individuals with binge eating disorder. There is more support for guided self-help than pure self-help. Self-help has also been shown to be superior to no treatment. In 2013, Rutgers Universityâs Counseling Center began routinely offering guided self-help for eating disorders after a graduate studentâs research proved this was a feasible and effective model. In a two-year study Zandberg, the student, trained a group of seven graduate psychology students who in turn provided guided self-help treatment to 38 students diagnosed with either bulimia nervosa or binge eating disorder. The support, which was based on cognitive behavioral therapy principles, was offered in ten 25-minute sessions. At the end of the 12-week program, 42 percent of the subjects experienced no binge episodes and 63 percent no longer met criteria for an eating disorder. Should You Try Self-Help? Not everyone needs a full course of individual therapy to recover from binge eating disorder, bulimia, and other forms of disordered eating. Researchers have proposed that individuals who have eating disorders start with the least-intensive appropriate treatment and then progress to more intensive treatments if there is no improvement. In this stepped-care model, the starting point is self-help. Self-help for eating disorders may be especially beneficial for those who cannot find a specialist provider or for those who have difficulty accessing treatment due to cost, location, or other barriers. Compared to other treatments, self-help is cost-effective. It is also flexible and can be done on oneâs own time. If you are underweight, have recently lost a significant amount of weight, or are diagnosed with anorexia nervosa or similar problems, self-help is not recommended â" it is imperative that you seek professional help. If you are experiencing disordered eating, binge eating disorder or bulimia nervosa, it is best to start by seeking medical and professional mental health treatment. However, if specialized treatment is not available and your problem is not severe, you may want to start with one of the resources below. Even if you are in some sort of treatment, you may want to consider one of the self-help resources as an adjunct; though itâs a good idea to discuss recovery-oriented books with your treatment team. Most clinical trials for eating disorders (regardless of treatment studied) show that if there is no improvement by week 4, the individual is less likely to benefit from that treatment. Thus, if after giving self-help a try, you are not showing progress by week 4, you should seek additional help or a higher level of treatment. A Word From Verywell Keep in mind that recovery from an eating disorder takes work. Set aside time to focus on recovery. Recognize that when you begin to address problems it is common to feel worse before you begin to feel better. Reach out to your support system. It is important to remember that many individuals do not make a full recovery with self-help interventions alone. This is not a reason to feel ashamed. Eating disorders are pernicious and sometimes intractable illnesses and other treatments are often necessary. Recommended Reading Overcoming Binge Eating (Fairburn, 1995), a truncated version of CBT-E treatment, is the self-help manual most frequently used in randomized controlled trials of guided self-help. It has demonstrated effectiveness for bulimia nervosa, binge eating disorder, and EDNOS (eating disorder not otherwise specified, the predecessor diagnosis to OSFED) across multiple studies. An updated version was published in 2013. Overcoming Binge Eating has two sections. The first contains psycho-education about eating disorders and the second a six-step self-help program. Each step includes specific homework tasks (e.g. self-monitoring, regular eating, problem-solving) and checklists that allow participants to monitor their progress.Overcoming Disordered Eating â" Part A and Overcoming Disordered Eating â" Part B comprise a self-help program available free for download for users worldwide through the Center for Clinical Interventions (CCI) of Western Australia. CCI workbooks, made available as user- friendly pdf files, address a number of mental health disorders. The eating disorder workbooks also closely follow the evidence-based CBT-E protocol.Overcoming Your Eating Disorder: A Cognitive-Behavioral Therapy Approach for Bulimia Nervosa and Binge-Eating Disorder, Guided Self Help Workbook. This workbook also closely follows the CBT treatment manual for bulimia and binge-eating.
Friday, May 22, 2020
Friday, May 8, 2020
Human Rights And International Law - 1078 Words
In order to understand the ASEAN Political and Economic Integration, it is crucial to understand the issues that happened surround ASEAN, particularly to Human Rights and International law issues. With regards to human right issues, the question is whether the ASEAN way is still working or ASEAN should start moving and interfere when the issue involves Human Right. This chapter will study how ASEAN state members solve problems when in relations to Human Rights and International law. It will discuss whether ASEAN can provide solutions on these problems or active passively on these issues. This chapter argues that ASEAN failed to provide any solution to the international law conflicts as well as human rights issues that happens in theâ⬠¦show more contentâ⬠¦Most of these cases are usually handled by International Arbitration or International Court. ASEAN rarely gets involved due to their non-involvement principles. Many had seen this as a failure within the region and had even l abelled ASEAN as toothless and lacking of clear mandate (Gil, 2014). In this article, it will use the case of Singapore and Malaysia in studying how ASEAN solve international law issues mainly, related to borders and boundaries among ASEAN state members. Singapore and Malaysia had always have a unique relations among them. This is due to factors such as geography, history, politics, ideology, economy, culture and ethnicity as well as interdependence with each other with regards to economy and security (Omar, n.d). However, due to these unique relations conflicts and tenses sometimes occurs between the two countries. One of the conflicts that occurs between the two countries is the conflicts with regards to Pedra Branca (previously known as Batu Puteh). It is an island that is located 8 miles from the shore of Malaysia and 28miles of the shore of Singapore (Omar, n.d). Malaysia had first published a map in 1974 after their territorial sea was extended to 12n.m, it shows that the island was a part of Singapore territories (Trost, 1993:28). However, Trost noted that the disputes began in 1979 when Malaysia had drawn a map that
Wednesday, May 6, 2020
The Internet Brings About Some Disadvantages to Users and Society Free Essays
It is obvious that in todayââ¬â¢s modern world, people access to information technology for granted. Although it is necessary for our life to contact with each other easily, technology also causes some problems, which affected relationship people. In my point of view, there are two aspects both positive and negative impact from technological development. We will write a custom essay sample on The Internet Brings About Some Disadvantages to Users and Society or any similar topic only for you Order Now Since the internet was invented, which has made great changes lifestyle in society, almost activities are able to implement with technology. To start with, the online- communication tools such as: email, teleconference software, messengerâ⬠¦ it is helpful to connect people, who live far from their family or colleagues work in different regions. For example, everyone can perform various activities by e-commerce like booking accommodation, flights, purchasing stuffâ⬠¦. without leaving home. Therefore, the internet becomes prevalent device in modern life, which seems like a major technological breakthrough. Otherwise, overusing the internet and neglecting the real life can lead to social isolation. Researchers reveal that people who spend too much time at the computer tend to have difficulties when they communicate with somebody in real world. When internet access fills most peopleââ¬â¢s time, and even their leisure time, this is cause of disconnection with their family, friends or community. Furthermore, it also result in some healthââ¬Ës problems such as obesity, myopiaâ⬠¦ In conclusion, technology has both pros and cons. In my opinion, the advantages are stronger than disadvantages; the internet brings many benefits and will not disappear. Thus people should learn to use technology efficiently so that we can limit their bad effects. How to cite The Internet Brings About Some Disadvantages to Users and Society, Papers
Tuesday, April 28, 2020
Writing Effective Press Releases
If you want to boost your businessââ¬â¢s visibility and media coverage, you need to know how to write a good press release. An effective press release is a powerful branding tool ââ¬â it can help you get the word out about your businessââ¬â¢s products and services, establish your companyââ¬â¢s credibility, generate social media engagement and direct traffic back to your website. However, itââ¬â¢s also different from crafting a blog post or creating website copy. So, Iââ¬â¢ve put together a few tips and tactics to get the most out of your press releases. 1. Make Sure Your Story Is Newsworthy Before you get to work on your press release, ask yourself if thereââ¬â¢s anything ââ¬Å"newâ⬠or unexpected in your story. Is it something that anyone outside your specific niche would even be interested in? If the answer is no, itââ¬â¢s probably best to hold off. 2. Write a Clear, Direct Headline Avoid the temptation to test out some clever wordplay or devise clickbait-y headlines for your press releases. These tactics muddle your message and make it harder for journalists to figure out the real story. Michael Long, the director of writing for Georgetown Universityââ¬â¢s graduate public relations program, likes to use the following template when he writes press releases for clients: ââ¬Å"Headline: Client Does Something.â⬠This format puts the businessââ¬â¢s name at the forefront, where it belongs, and it tells you what the real story is right away. 3. Fit Your Press Release On One Page Your release should fit on a standard 8.5 x 11 sheet of paper, but you also donââ¬â¢t need to fill the whole page. Keep your paragraphs short and aim for a total of 300 to 400 words. The point of your release isnââ¬â¢t to reveal every detail of your story but to tempt people to reach out for more information. If the first sentence doesnââ¬â¢t grab a journalist, theyââ¬â¢re probably not going to keep reading. Thatââ¬â¢s why you need to get your most important information into the very beginning of your press release. Ideally, the first line of the release should sound similar to the opening lines of a news story. Try to squeeze in as many of the ââ¬Å"five Wsâ⬠as you canââ¬âwho, what, where, when and why. 5. Brush Up On AP Style When you write a press release, most adhere to Associated Press style guidelines. If you donââ¬â¢t have much experience with this style, it can take some getting used to. For example, AP style uses only one space after punctuation, even though you might be accustomed two spaces after a period or a colon. You also wonââ¬â¢t see any serial commas in AP style. Take a bit of time to review the key standards of these guidelines and youââ¬â¢ll find your releases will be much more effective. Spread the Word A press release is a great opportunity to spread the word about your business and its accomplishments. If you can publish one that effectively reaches the right people, youââ¬â¢ll be able to spread your message to an even greater number of people. Click here to download your free press release template.
Friday, March 20, 2020
Free Essays on Sony Ericsson
Sony Ericsson, a 50:50 joint venture of Sony Corporation and Ericsson AB, was established in October 2001. It stands by the mission ââ¬Å"â⬠¦to establish Sony Ericsson as the most attractive and innovative global brand in the mobile handset industry.â⬠Sony Ericsson Mobile Communications (SEMC) is a global provider of mobile multimedia devices, including feature-rich phones and accessories, PC cards and M2M solutions. SEMC is a global provider of mobile multimedia devices, including feature-rich phones and accessories, PC cards and M2M solutions. The products combine powerful technology with innovative applications for mobile imaging, communications and entertainment. The net result is that Sony Ericsson is an enticing brand that creates compelling business opportunities for mobile operators and desirable, fun products for end users. Sony Ericsson Mobile Communications was established in 2001 by telecommunications leader Ericsson and consumer electronics powerhouse Sony Corporation. The company is owned equally by Ericsson and Sony and had announced its first joint products in March 2002. Product Portfolio Sony Ericsson products have universal appeal and are tangibly different in the key areas of imaging, design and applications. The company has consistently launched products that make best use of the major mobile communications technologies, such as the 2G and 3G platforms, while enhancing its offerings to entry-level markets. In early 2005, Sony Ericsson announced a large number of new phones, networking products and accessories that move the portfolio significantly forward and are anticipated to stimulate a new phase of growth for the company. Included were the stunning yet affordable K600 3G UMTS handset that brings the possibilities of the 3G network to a wider public; the K750, the companyââ¬â¢s first 2 Megapixel, auto focus camera phone; and the W800 Walkmanà ® branded music phone that combines a ... Free Essays on Sony Ericsson Free Essays on Sony Ericsson Sony Ericsson, a 50:50 joint venture of Sony Corporation and Ericsson AB, was established in October 2001. It stands by the mission ââ¬Å"â⬠¦to establish Sony Ericsson as the most attractive and innovative global brand in the mobile handset industry.â⬠Sony Ericsson Mobile Communications (SEMC) is a global provider of mobile multimedia devices, including feature-rich phones and accessories, PC cards and M2M solutions. SEMC is a global provider of mobile multimedia devices, including feature-rich phones and accessories, PC cards and M2M solutions. The products combine powerful technology with innovative applications for mobile imaging, communications and entertainment. The net result is that Sony Ericsson is an enticing brand that creates compelling business opportunities for mobile operators and desirable, fun products for end users. Sony Ericsson Mobile Communications was established in 2001 by telecommunications leader Ericsson and consumer electronics powerhouse Sony Corporation. The company is owned equally by Ericsson and Sony and had announced its first joint products in March 2002. Product Portfolio Sony Ericsson products have universal appeal and are tangibly different in the key areas of imaging, design and applications. The company has consistently launched products that make best use of the major mobile communications technologies, such as the 2G and 3G platforms, while enhancing its offerings to entry-level markets. In early 2005, Sony Ericsson announced a large number of new phones, networking products and accessories that move the portfolio significantly forward and are anticipated to stimulate a new phase of growth for the company. Included were the stunning yet affordable K600 3G UMTS handset that brings the possibilities of the 3G network to a wider public; the K750, the companyââ¬â¢s first 2 Megapixel, auto focus camera phone; and the W800 Walkmanà ® branded music phone that combines a ...
Tuesday, March 3, 2020
Dear Abby Letters for Learning English
Dear Abby Letters for Learning English This lesson plan focuses on modeling a lesson on Dear Abby, written by Abigail Van Burenin, in order to practice a wide range of English skills including reading, vocabulary extension, writing, and pronunciation. Its a fun exercise that helps students practice concepts they have learned in class and is suitable for upper intermediate to advanced level students. Introduction to Dear Abby For those of you who have never heard of Dear Abby, Dear Abby is an advice column in the United States which is syndicated in many newspapers throughout the country. People from all walks of life write in with their problems - family, financial, but mostly relationships - to ask for advice from Dear Abby. Writers usually sign the letters to Dear Abby with a descriptive phrase such as Hoping to feel better soon or Looking for an answer. Abby then replies to the letters with sound advice that is usually quite reasonable, even for very complicated situations. Why Advice Columns in Class? Using advice columns in class allows students have quite a bit of fun with some crazy - or not so crazy - situations while, at the same time, practicing some very high-level skills and integrating quite a lot of new vocabulary related to relationships, family life, etc. I have found students enjoy themselves. However, they also feel challenged as they will need to communicate in both written and spoken form. Lesson Outline Aim: Practice reading, writing, and pronunciation with special focus on giving advice Activity: Reading, then creating and finally presenting and commenting orally on advice column letters Level: Upper intermediate to advanced Outline Begin by introducing advice columns by asking students whether they have ever read an advice column. If they are unfamiliar with this term, describe a typical reader letter and advice response as most students will be familiar with this type of column.Read or show the students an example Dear Abby letter provided as an example at the bottom of this page.Split students into pairs.Visit Dear Abby online and present a few letters and responses to your student. Its best if you use a projector in class, but using one or more computers can work as well.Ask each pair to read both the reader letter and the response of different columns. Students should take note of new vocabulary and expressions to share with the rest of the class.Once students understand their advice column, have them switch partners and each partner should explain the basic problem and response of the advice letter they read.After students have worked through their readings, list new vocabulary and discuss idiomatic usage with the entire class. Have each student write their own advice column letter. Go around the room helping the students with grammar and vocabulary issues.Once everyone has written their advice column letter, quickly review the concept of stress and intonation as a means of improving pronunciation skills.Ask students to mark up their letter by underlining content words to help with pronunciation.Have each student read their advice column letter to the class. Students should then choose an Abby to provide suggestions on their issue.If students have difficulty in understanding, request that the letter in question be reread by the student to the class. Advice Column Letters Worried about Love Dear ...: I dont know what to do! My boyfriend and I have been dating for over two years, but I feel like he doesnt really love me. He rarely asks me out anymore: We dont go to restaurants, or shows. He doesnt buy me even the smallest of presents. I love him, but I think hes taking me for granted. What should I do? - Worried About Love Response Dear Worried About Love: I think its clear from your description that your boyfriend doesnt really love you. Two years is not such a long time to be dating, and the fact that he treats you like a toy he can ignore speaks volumes about his true feelings. Get out of the relationship as fast as you can! There are many more wonderful men out there who will appreciate, and treasure your love - dont waste it on an oaf who clearly has no clue as to your worth!
Sunday, February 16, 2020
The Transformation of the Social Sphere Essay Example | Topics and Well Written Essays - 2500 words
The Transformation of the Social Sphere - Essay Example It also kept the general population informed on current affairs, helped the educational system and provided literature to entertain the people. The next biggest invention that impacted mass media was the radio. The radio united humans by adding the cognitive element of beingà able to hear additional communicative elements such as vocal inflexion as information travelled through radio waves into peoplesââ¬â¢ homes. This influence was itself rendered nearly obsolete with the invention of film and television. The latest medium that surged at the end of the 20th century to rival the influence of the television has been the introduction of the desktop computer and widespread access to the internet. The purpose of this paper is to analyze the effect the mass media had on the temporal and spatial foundation of the social sphere. It is helpful to start with a common conception of what is meant when referring to the spatial and temporal foundations of the social sphere. The spatial dimension refers to the physical space that separates humans in different parts of the world in terms of geographical location. ââ¬Å"Spatial structure is now seen not merely as an arena in which social life unfolds, but rather as a medium in which social relations are produced and reproducedâ⬠(Pries, 2002, p. 2), such as the virtual spaces of the television and the computer screen. Mass media also extends the space of experience because it provides a greater accessibility to a variety of information and places (Carpignano, 1997). In addition, it can bridge the gap between spatial linguistic barriers such as those that exist within the Peopleââ¬â¢s Republic of China, where regional dialects prevent oral communication between regions. Because all literate Chinese share a similar written language, though, mass media enables these regions of China to communicate. Mass media has changed the way people have perceived the world for the last 500 years. à It has impacted the behaviour of human beings through technological advances such as the television by altering their daily patterns of activity and the established means of communicating important cultural values and ideas among members of a society.à However, with new technologies, some of the necessary interaction may return to these cultural interactions as they become more ââ¬Ëreal-timeââ¬â¢ and enable individuals to not only hear the vocal inflexions of the individual they are speaking with but also visualize their facial features and other symbols of a physical presence through the virtual medium of the video screen.
Sunday, February 2, 2020
Strategic management Essay Example | Topics and Well Written Essays - 3250 words - 1
Strategic management - Essay Example Every organisation is subjected to factors which affect the functions and overall revenue generation of the firm. In the current report, FedEx Corporation has been analysed taking few of its major strategic management policies and their evaluation. FedEx is one of the biggest players in shipping and logistics industry. The company has always been a frontrunner providing differentiated services which have provided a competitive edge to the company. However, the company has seen various environmental changes and constant volatility in the business due to globalisation, financial crisis and increasing competitors. As a result of these strategic management have become more and more important for FedEx. The current report provides a critical analysis as well as evaluation of FedEx Corporationââ¬â¢s strategic development. The report has covered three principle strategies followed by the company. In the first part, the value chain analysis of Porter and their relevance in the practical f ield has been outlined. Further, the Companyââ¬â¢s application of the value chain has been described in detail. Then the vertical and horizontal strategic management policies of the company have been discussed. This part has evaluated the diversification strategy of the company in order to gain expertise and control over its businesses. In the final part the customer relationship strategy has been discussed. FedEx has always focussed on providing differentiated services to its customers. The companyââ¬â¢s foray into the services market and the strategies followed to crate differentiation and brand loyalties have been evaluated. Task: Part 2 Introduction Strategic management is characterised by a combination of analysis, action and decisions which a firm undertakes in order to sustain and create competitive advantage (Charles and Gareth, 2004). Each feature of a strategic management process consists of various action plans. The initial step of strategy management is analysis of goals, objectives and mission along with a thorough analysis of the external and internal environment. The decisions and subsequent actions are necessary steps for the implementation of the strategies. An analysis of strategies followed by an organization or firm helps in understanding its position with respect to its competitors as well as industry (Hutt and Speh, 2001). There are few strategies which give competitive advantage to some companies over others. In the current report FedEx Corporation and its strategic management policies have been evaluated. FedEx provides a wide range of shipment and transportation services. It is one of the largest logistic and shipping organizations in the world. Even though consumer goods marketing and business marketing are known to have similar principles and theories, they differ in their functionality and target market. The current report will throw light on the customer relationship management strategy as well as networking strategies of the organization. Business marketing can be described as an action to promote selling of products or services to other businesses, institutions, government etc. On the other hand, consumer goods marketing can make use of the services and products for consumptions, reselling or operational purpose. Looking at the present consumer as well as business markets, it can be said that in terms of market transactions volume, business markets
Saturday, January 25, 2020
Defining And Understanding Crisis Intervention Social Work Essay
Defining And Understanding Crisis Intervention Social Work Essay We live in an era in which crisis-inducing events and acute crisis episodes are prevalent. Each year, millions of people are confronted with crisis-inducing events that they cannot resolve on their own, and they often turn for help to crisis units of community mental health centers, psychiatric screening units, outpatient clinics, hospital emergency rooms, college counseling centers, family counseling agencies, and domestic violence programs (Roberts, 2005). Crisis clinicians must respond quickly to the challenges posed by clients presenting in a crisis state. Critical decisions need to be made on behalf of the client. Clinicians need to be aware that some clients in crisis are making one last heroic effort to seek help and hence may be highly motivated to try something different. Thus, a time of crisis seems to be an opportunity to maximize the crisis clinicians ability to intervene effectively as long as he or she is focused in the here and now, willing to rapidly assess the clients problem and resources, suggest goals and alternative coping methods, develop a working alliance, and build upon the clients strengths. At the start it is critically important to establish rapport while assessing lethality and determining the precipitating events/situations. It is then important to identify the primary presenting problem and mutually agree on short-term goals and tasks. By its nature, crisis intervention involves identifying failed coping sk ills and then helping the client to replace them with adaptive coping skills. It is imperative that all mental health clinicians-counseling psychologists, mental health counselors, clinical psychologists, psychiatrists, psychiatric nurses, social workers, and crisis hotline workers-be well versed and knowledgeable in the principles and practices of crisis intervention. Several million individuals encounter crisis-inducing events annually, and crisis intervention seems to be the emerging therapeutic method of choice for most individuals. Crisis Intervention: The Need for a Model A crisis has been deà ¬Ã ned as An acute disruption of psychological homeostasis in which ones usual coping mechanisms fail and there exists evidence of distress and functional impairment. The subjective reaction to a stressful life experience that compromises the individuals stability and ability to cope or function. The main cause of a crisis is an intensely stressful, traumatic, or hazardous event, but two other conditions are also necessary: (1) the individuals perception of the event as the cause of considerable upset and/or disruption; and (2) the individuals inability to resolve the disruption by previously used coping mechanisms. Crisis also refers to an upset in the steady state. It often has à ¬Ã ve components: a hazardous or traumatic event, a vulnerable or unbalanced state, a precipitating factor, an active crisis state based on the persons perception, and the resolution of the crisis. (Roberts, 2005, p. 778) Given such a de à ¬Ã nition, it is necessary that crisis workers have in mind a framework or blueprint to guide them in responding. In short, a crisis intervention model is needed, and one is needed for a host of reasons, such as the ones given as follows. When confronted by a person in crisis, clinicians need to address that persons distress, impairment, and instability by operating in a logical and orderly process (Greenstone Leviton, 2002). The profetional, often with limited clinical experience, is less likely to exacerbate the crisis with well-intentioned but haphazard responding when trained to work within the framework of a systematic crisis intervention model. A inclusive intervention allows the novice as well as the experienced clinician to be mindful of maintaining the à ¬Ã ne line that allows for a response that is active and directive enough but does not take problem ownership away from the client. Finally, a intervention should suggest steps for how the crisis worker can intenti onally meet the client where he or she is at, assess level of risk, mobilize client resources, and move strategically to stabilize the crisis and improve functioning. Crisis intervention is no longer regarded as a passing fad or as an emerging discipline. It has now evolved into a specialty mental health à ¬Ã eld that stands on its own. Based on a solid theoretical foundation and a praxis that is born out of over 50 years of empirical and experiential grounding, crisis intervention has become a multidimensional and à ¬Ã¢â¬Å¡exible intervention method. However, the primary focus of crisis literature has been on giving aid and support, which is understandable given that the first concern in the aftermath of a crisis is always to provide assistance (McFarlane, 2000), not to conduct systematic research (Raphael, Wilson, Meldrum, McFarlane, 1996). Experts in crisis intervention have focused on practical issues such as developing intervention models that manage postcrisis reactions (Paten, Violanti, Dunning, 2000), with little attention being given to the development of theory (Slaikeu, 1990). Slaikeu stated that crisis theories are more like a cluster of assumptions, rather than principles based on research that explain or predict the effect of crises on individuals. Ursano et al. (1996) agreed, stating that clinical observations and implications derived from mediators of traumatic stress have guided interventions, rather than theory. Although these efforts have increased the understanding of the nature of crises, a need exists to mo ld these assumptions and observations into theory. The field of crisis intervention is predicated upon the existence of the phenomenon of psychological crisis. Because crisis intervention is the natural corollary of the psychological crisis, this review begins with a definition of the crisis phenomenon. Definition of crisis by Caple Crisis occurs when people encounter an obstacle in achieving the important objectives of life. This obstacle and cannot be overcome by means of customary methods used dealing with difficulties.à This results in a state of disorganization and confusion, in which made numerous unsuccessful attempts of solutions. Moreover, the crisis resulted from the problems on the road practically important in achieving objectives, obstacles where people feel that they are not able to overcome through the usual choices and behavior. (1964) by CARKHUFFA and Berenson Crises are crises so that the affected people do not know any ways of dealing themselves with the situation (1977) by Belkin Crises of this personal difficulties or situations that deprive people of ability and prevent conscious control of his life (1984) by Brammer Crisis is a state of disorganization in which man is confronted with the destruction of important objectives of life or profound impairment of their life cycle and methods of dealing with stressful factors.à The term crisis typically refers to a sense of fear, shock and experienced difficulties in connection with the disorder, and not to the same disorder (1985) by MARINO Crisis develops in clear stages: a) the situation is critical, which controls whether the normal mechanisms for dealing deal with difficult enough; b) the mounting tension and disorganization accompanying this situation excess capacity it affected people to cope with difficulties; c) the situation requires reaching for the extra resources (ex. professional counseling); d) may prove necessary referral to a specialist who will help in removal of serious personality disorder (1995) by Badura-Madej The crisis is transitional state of internal imbalance, caused by critical event or life events.à This condition requires significant changes and decisions. (1999) The Chinese word for crisis presents a good depiction of the components of a crisis. The wordà crisisà in Chinese is formed with the characters forà dangerà andà opportunity. A crisis presents an obstacle, trauma, or threat, but it also presents an opportunity for either growth or decline.à Crisis is self-defined , because crisis is any situation for which a person does not have adequate coping skills. Therefore, What is a crisis for one person may not be a crisis for another person. In mental health terms, a crisis refers not necessarily to a traumatic situation or event, but to a persons reaction to an event. One person might be deeply affected by an event, while another individual suffers little or no ill effects. Crises may range from seemingly minor situations, such as not being prepared for class, to major life changes, such as death or divorce. Crisis is environmentally based. What is now a crisis may not have been a crisis before or would not be a crisis in a different setting.à Basic Crisis Theory: Since Lindemanns (1944, 1956) seminal contribution of a basic crisis theory stemming from his work in loss and grief, the development of crisis theory has advanced considerably. Lindemann identified crises as having: (1) a period of disequilibrium; (2) a process of working through the problems; and (3) an eventual restoration of equilibrium. Together with the contributions of Caplan (1964), this work evolved to eventually include crisis intervention for psychological reactions to traumatic experiences and expanded the mental health fields knowledge base in applying basic crisis theory to other types of crises experienced by people. In addition to recognizing that a crisis is accompanied by temporary disequilibrium, crisis theorists identify the potential for human growth from the crisis experience and the belief that resolution may lead to positive and constructive outcomes such as enhanced coping abilities. Thus, the duality contained in a crisis is the co-existence of danger and opportunity (Gilliland James, 1997). One part of the crisis state is a persons increased vulnerability and reduced defensiveness. This creates an openness in people for trying different methods of problem-solving and leads to change characterizing life crises (Kendricks, 1985). Expanded Crisis Theory: While expanded crisis theory, as we understand it today, merges key constructs from systems, adaptation, psychoanalytic and interpersonal theories (Gilliland James, 1997), the advent of systemic thinking heralded a new way of viewing crisis states. By shifting away from focusing exclusively on the individual in crisis to understanding their state within interpersonal/familial relationships and life events, entry points and avenues for intervention significantly increase. Systems theory promotes the notion that traditional cause and effect formulations have a tendency to overlook the complex and difficult to understand symptomlogy often observed in people in crisis. Especially with younger populations, crisis assessments should occur only within the familial and social context of the child in crisis. More recently the ecological perspective is gaining popularity as it evolves and develops into models of crisis intervention. From this perspective, crises are believed to be best viewed in the persons total environmental context, including political and socio-economic contexts. Thus, in the United States, mobile crisis teams primarily responding to adult populations use an ecological model. Issues of poverty, homelessness, chronicity, marginalization and pervasive disenfranchisement characterize the client population served (Cohen, 1990). Ecocsystem Theory: Most recently an ecosystem theory of crisis is evolving to explain not only the individual in crisis, but to understand those affected by crisis and the ecological impact on communities. For example, the devastating rate of suicide and attempted suicide in Inuit youth reverberates through their communities on multiple levels. Ecosystem theory also deals with larger scale crises from environmental disasters (e.g. oil spills) to human disasters (e.g. Columbine school shootings). Applied Crisis Theory: Applied crisis theory encompasses the following three domains: Developmental crisesà which are events in the normal flow of human growth and development whereby a dramatic change produces maladaptive responses; Events such as birth, which is a crisis both for the mother and the infant, the onset of puberty and adolescence, marriage, the menopause, and so on as we progress through the biological stages of life, are known as developmental crises, These differ from situational crisis in that they necessarily occur at a given point in development and everyone has to pass through them. This goes along with Eriksons theory of personality development, in that personality continues to develop through life, changing radically as a function of how an individual deals with each stage of development. There are several causes of developmental crisis. One cause is a deficit in skills that can keep a person from achieving developmental tasks or turn a predictable transition into a crisis. For example, if a parent does not have the skills to be a parent, having a baby could become a crisis situation. Developmental crisis can also occur when the individual is not prepared for milestone events, such as menopause, widowhood, etc. Another cause is when one of lifes developmental transition is perceived by the individual as being out of phase with societys expectations. Examples of this could be leaving home, choosing a partner, marrying, having kids, and retiring. Situational crisesà which emerge with the occurrence of uncommon and extraordinary events which the individual has no way of predicting or controlling; Traumatic events which might or might not happen at a given time. These could either be major catastrophes such as earthquakes, floods, etc., which could affect a whole section of society. In other words occurs in response to a sudden unexpected event in a persons life. The critical life events revolve around experiences of grief and loss. like loss of a job, divorce, abortion, death of a love one, severe physical or mental illness, or any other sudden tragic event. One characteristic of situational crises is their sudden onset and unpredictability. While a struggle with developmental issues usually builds over time, situational crises strike from nowhere all at once. Unexpectedness is another factor of situational crises. People generally believe it wont happen to me, and are blind-sided when it does happen to them. Emergency quality is another characteristic of situational crises. When a situational crisis hits, it needs to be dealt with immediately. Situational crises also impact the entire community. These events usually affect large numbers of people simultaneously, requiring intervention with large groups in a relatively short period of time. The last characteristic of situational crises is the presence of both danger and opportunity. Reorganization must eventually begin. This reorganization has the potential for the individual to emerge on either a higher or lower level of functioning. Existential crisesà which refer to inner conflicts and anxieties that relate to human issues of purpose, responsibility and autonomy (e.g., middle life crisis). It is a stage of development at which an individual questions the very foundations of their life: whether their life has any meaning, purpose or value. An existential crisis is often provoked by a significant event in the persons life marriage, separation, major loss, the death of a loved one; a life-threatening experience; psycho-active drug use; adult children leaving home; reaching a personally-significant age (turning 30, turning 40, etc.), etc. Usually, it provokes the sufferersà introspectionà about personal mortality, thus revealing the psychological repression of said awareness Each person and situation is unique and should be responded to as such. Therefore, it is useful to understand the crisis from one or more of these domains in order to understand the complexities of the individuals situation and to intervene in more effective ways. One would also tend to see a younger population with developmental and/or situational crises (Gilliland James, 1997). Due to the duration of the crisis, we may distinguish Acute crises Chronic crises Stages of a Crisis In order to articulate the elements of a responsive mobile crisis service a conceptual framework of the stages of crisis is presented. There is agreement in the literature that most crisis interventions should last about one to six weeks (Caplan, 1964; Kendricks, 1985). This suggested time frame is based on identifiable stages of a crisis. Frequently cited in the literature (Gilliland James, 1997; Smith, 1978) is Caplans four stages of crisis: Phase I The person has an increase in anxiety in response to a traumatic event;à if the coping mechanisms work, theres no crisis;à if coping mechanisms do not work (are ineffective) a crisis occurs. Phase II In the second phase anxiety continues to increase. Phase III Anxiety continues to increase the person asks for help. (If the person has been emotionally isolated before the trauma they probably will not have adequate support a crisis will surely occur). Phase IV Is theà active crisisà here the persons inner resources supports are inadequate. The person has a short attention span, ruminates (goes on about it), wonders what they did or how they could have avoided the trauma. Their behavior is impulsive unproductive. Relationships with others suffer,à they view others in terms of how can they help to solve the problem. The person feels like they are losing their mind,à this is frightening Be sure to teach them that when the anxiety decreases that thinking will be clearer. While others have proposed slightly varying stages, there are commonalties in understanding that crises are time-limited, have a beginning, middle and end, and that intervention early in a crisis can produce stabilization and a return to the pre-crisis state. No intervention, or inadequate intervention, can result in chronic patterns of behavior that result in transcrisis states (Gilliland James, 1997). Transcrisis: the original crisis event becomes submerged into the unconscious and re-emerges when anxiety is re-experienced. A woman who experienced rape will re-experience problems with being sexually intimate with a man and experience problems in intimate relationships. Crisis stages can be distinguished from mental disorders in that the person in crisis can be described as having normal and functional mental health before and after the crisis. Additionally crisis tend to be of limited duration and after the crisis is over, the clients turmoil will frequently subside. There however persons who can stay in crisis state for month or years. Such individual is described as being In transcrisis state. Its also possible for transcris state to lead to the development of anxiety and other tipes of mental disorder (ex.PTSD). Crisis Intervention Crisis intervention is the form of psychological help, that is focused on therapeutic contact, concentrated on the problem, that caused the crisis, limited in time, when the person is confronted with the crisis and has to solve it. That kind of help lets us reduce the crisis response and minimize functional impairment. (Badura-Madej, 1999) Crisis intervention is emergency first aid for mental health (Ehly, 1986). Crisis intervention involves three components: 1) the crisis, the perception of an unmanageable situation; 2) the individual or group in crisis; and 3) the helper, or mental health worker who provides aid. Crisis intervention requires that the person experiencing crisis receive timely and skillful support to help cope with his/her situation before future physical or emotional deterioration occurs. Crisis intervention provides the opportunity and mechanisms for change to those who are experiencing psychological disequilibrium, who are feeling overwhelmed by their current situation, who have exhausted their skills for coping, and who are experiencing personal discomfort. Crisis intervention is a process by which a crisis worker identifies, assesses, and intervenes with the individual in crisis so as to restore balance and reduce the effects of the crisis in his/her life. The individual is then connected with a resource network to reinforce the change. HISTORY Crisis Intervention Origins of crisis intervention, should be found in the topics related to the suicide prevention, the development of environmental psychiatry, as well as a vocation to life services dealing with emergency psychotherapeutic assistance for victims of traumatic events, such as: war or natural disasters (Badura-Madej, 1999). The roots of crisis intervention come from the pioneering work of two community psychiatrists-Erich Lindemann and Gerald Caplan in the mid-1940s, 1950s, and 1960s. We have come a far cry from its inception in the 1950s and 1960s. Specià ¬Ã cally, in 1943 and 1944 community psychiatrist, Dr. Erich Lindemann at Massachusetts General Hospital conceptualized crisis theory based on his work with many acute and grief stricken survivors and relatives of the 493 dead victims of Bostons worst nightclub à ¬Ã re at the Coconut Grove. Gerald Caplan, a psychiatry professor at Massachusetts General Hospital and the Harvard School of Public Health, expanded Lindemanns (1944) pioneering work. Caplan (1961, 1964) was the à ¬Ã rst clinician to describe and document the four stages of a crisis reaction: initial rise of tension from the emotionally hazardous crisis precipitating event, increased disruption of daily living because the individual is stuck and cannot resolve the crisis quickly, te nsion rapidly increases as the individual fails to resolve the crisis through emergency problem-solving methods, and the person goes into a depression or mental collapse or may partially resolve the crisis by using new coping methods. A number of crisis intervention practice models have been promulgated over the years (e.g., Collins Collins, 2005; Greenstone Leviton, 2002; Jones, 1968; Roberts Grau, 1970). The goals of crisis intervention are relatively limited, relate to the immediate crisis situation and are the following: Reduction in disequilibriurn or relief of symptoms of crisis Restoration to precrisis level of functioning Some understanding of the relevant precipitating events Identification of remedial measures which the client can take or make available through community resources. Connecting the current situation with past life experiences and conflicts Initiating new modes of thinking, perceiving feeling and developing new adaptive and coping responses which are useful beyond the immediate crisis situation, leading to an emancipated maturation and empowerment. Basic Principles While there is no one single model of crisis intervention (Jacobson, Strickler, Mosley, 1968), there is common agreement on the general principles to be employed by EMH practitioners to alleviate the acute distress of victims, to restore independent functioning and to prevent or mitigate the aftermath of psychological trauma and PTSD (Butcher, 1980; Everly Mitchell, 1999; Flannery, 1998; Raphael, 1986; Robinson Mitchell, 1995; Sandoval, 1985; Wollman, 1993). 1. Intervene immediately. By definition, crises are emotionally hazardous situations that place victims at high risk for maladaptive coping or even for being immobilized. The presence onsite of EMH personnel as quickly as possible is paramount. 2. Stabilize. One important immediate goal is the stabilization of the victims or the victim community actively mobilizing resources and support networks to restore some semblance of order and routine. Such a mobilization provides the needed tools for victims to begin to function independently. 3. Facilitate understanding. Another important step in restoring victims to pre-crisis level of functioning is to facilitate their understanding of what has occurred. This is accomplished by gathering the facts about what has occurred, listening to the victims recount events, encouraging the expression of difficult emotions, and helping them understand the impact of the critical event. 4. Focus on problem-solving. Actively assisting victims to use available resources to regain control is an important strategy for EMH personnel. Assisting the victim in solving problems within the context of what the victim feels is possible enhances independent functioning. 5. Encourage self-reliance. Akin to active problem-solving is the emphasis on restoring self-reliance in victims as an additional means to restore independent functioning and to address the aftermath of traumatic events. Victims should be assisted in assessing the problems at hand, in developing practical strategies to address those problems, and in fielding those strategies to restore a more normal equilibrium. The practice of crisis intervention, typically consist of the following (Badura Madej, 1999): Providing emotional support to facilitate the reaction to emotion; Confronted with the reality and countering tendencies to deny and distorted to form at the moment the most important problem to solution; Assess the current ways of coping in terms of their adaptive nature; Referring to good coping strategies or creating new strategies; A plan of assistance. Characteristics of a crisis intervention (Badura-Madej, 1999): Assistance as soon as possible after the critical event, preferably at the time, when the existing ways of coping are exhausted with crisis, and new constructive behaviors yet not created to provide the support reduces the risk run adaptive ways of coping; Focus on the situation and the current problem associated with the crisis (the here and now ), taking into account the individual history of man (analysis of this story helps to understand the nature and depth of the crisis reaction) Emotional support, often also material support (accommodation, shelter, food, drinking, etc.) to ensure a sense of security to the person in crisis; A large intensity of contacts (depending on the situation) and sometimes even daily; Time limit (6 10 meetings) flexibility in assisting interactions from the directive operation, client collaboration, to the non-directive action; Mobilizing the natural support system for people in crisis, cooperation with other institutions, providing possible support from institutions to holistic approach to people in crisis (eg, OPS, police, etc.). Crisis Intervention Models (Gilliland and James, 2005) Practice and intervention literature indicate the usefulness of certain general theoretical models for the construction of concrete measures for persons in crisis.à Belkin (1984) proposes a classification includes equilibrium model, cognitive model and psycho-social model of transformation (Gilliland and James, 2005). Equilibrium model Equilibrium model indicates a basic fact of the continuum balance imbalance, which differentiates functioning non-crisis and crisis.à Persons in crisis, experiencing state of disorganization, lack of balance of basic psychological functions, are not able to effectively use their customary ways of coping and methods of solving problems. The aim of the intervention from the point of view of equilibrium model is to assist the client in regained pre-crisis equilibrium.à therefore the use of this approach is the most justified in the initial stages of intervention, when a person has no sense of control over himself and course of events is confused and unable to take adequate decisions and appropriate action.à Until the client does not recover even though part of the capacity to coping, the main effort should be directed to stabilize the condition of the person.à Only then it is possible to use his abilities to cope, and other internal and external resources to solve a crisis problem.à Equilibrium model considered is the cleanest model of crisis intervention (Caplan, 1961; for: Gilliland and James, 2005). Cognitive model The cognitive model of crisis intervention is based on the premise that crisis are rooted in faulty thinking about the event or situations that surround the crisis not in the events themselves or the facts about events or situations (Ellis, 1962). The goal of this model is to help people become aware of and change their views and beliefs about crisis events or situations. The basic tenet of the cognitive model is that people can gain control of crisis in their lives by changing their thinking, especially by recognizing and disputing the irrational and self-defeating parts of their cognitions and by retaining and focusing on the rational and self-enhancing elements of their thinking. The messages that people in crisis send themselves become very negative and twisted, in contrast to the reality of the situation. Dilemmas that are constant and grinding wear people out, pushing their internal state of perception more and more toward negative self-talk until their cognitive sets are so negative that no amount of preaching can convince them anything positive will ever come from the situation. Crisis intervention in this model can be compared to work on rewriting your own program by the client, which on a positive Coupling back and repeat the exercise in self-assessment of the new situation, be able to change emotions and behavior in a more positive and constructive. Cognitive model can be used in practice when the client has already regained some sufficient level of psychological stability, allowing where appropriate perception, drawing conclusions, making decisions and experimenting with new behaviors. Basic concepts of this approach are fond in the rational-emotive work of Ellis (1982), the cognitive-behavioral approach of Meichenbaum (1977), and the cognitive system of Beck (1976). Psychosocial transition model Psychosocial transition model is another useful approach to intervention in crisis.à This model is based on the assumption that man is the result of the interaction between the genetic equipment, and the learning process, setting the social environment. Both people and their environment and social influence processes are subject to constant change. Therefore, crises may be related to both internal and external (psychosocial, social and environmental) difficulties. The purpose of crisis intervention, as seen from this perspective, is to help, cooperation with client in an adequate assessment of both internal and external circumstances influencing the emergence of the crisis, as well as assist in the selection of effective alternatives to the (clients) existing, inefficient behavior, inappropriate attitudes and inefficiencies how to use the resources of the environment in which I live. To obtain a stand-alone control over his private life customers can be needed for obtaining adequate internal mechanisms to deal with difficulties, as well as social support and environmental resources. The Psychosocial transition model does not perceive crisis simply an interal state of affairs that resides totally within the individual. It reaches outside the individual and askes what system need to be changed. Systems such as family, peer group, work environment, religious community are examples who can also support or interfere with the psychological ada
Friday, January 17, 2020
Leaders Arenââ¬â¢t Born They Are Made Essay
ââ¬Å"There are many well-educated and motivated people who lack the knowledge of how to lead others. So they donââ¬â¢t assume leadership positions, or if they do, they donââ¬â¢t do very well in them. They and others too, assume that these individuals just werenââ¬â¢t born to be leaders. Thatââ¬â¢s really a tragedy, because our country and our people need good leaders. Corporations, associations, and athletic teams all need good leaders. Even parents must be good leaders or their families can become dysfunctional. It is hardly an exaggeration to say that our very success as a nation depends upon good leadership. But my research shows conclusively that effectiveness as a leader depends less on some innate trait you are born with, and much more on specific principles that anyone can follow.â⬠There have been a numbers of debates concerning the issue of what makes a great leader. This debate is usually summarized into two schools of thought. The one school proposes that leaders are a select few people who are born with the unique set of skill and have rare leadership abilities. The other school of thought proposes that leaders are made, that is they learn, grow and develop into great leaders through the books they read, the people they associate with and from their personal experiences. My take on this discussion is that I believe that Leaders are made, and I am not the only one with this belief. ââ¬Å"â⬠¦leaders are made, not born, and made more by themselves than by any external means. Secondâ⬠¦that no leader sets out to be a leader per se, but rather to express himself freely and fully.â⬠ââ¬â Warren Bennis The truth is the most people have the potential to become leaders. The real issue is that leadership takes time to developâ⬠¦ à § People need time to figure out what theyââ¬â¢re passionate about à § People need time to understand their personal vision and purpose à § People need time to learn how to express who they à § People need time to learn how to use their unique strengths and skills à § People need time to learn how to express their purpose in their own unique way. As the saying goesâ⬠¦. the fighter does not win in the ringâ⬠¦ he is only recognized there! You see leadership is not something youââ¬â¢re born with, it cannot be taught, it cannot be copiedâ⬠¦ itââ¬â¢s learnt! ââ¬Å"Leadership cannot really be taught. It can only be learned.â⬠ââ¬â Harold Geneen Leaders learn through life experience, by making room in our lives for lots of trial and errorâ⬠¦ ââ¬Å"Leaders arenââ¬â¢t born, they are made. And they are made just like anything else, through hard work. And thatââ¬â¢s the price weââ¬â¢ll have to pay to achieve that goal, or any goal.â⬠ââ¬â Vince Lombardi Leaders are made when they understanding their purpose, their unique strengths and have a deep passion to make a difference by living out whom they are in the real world. ââ¬Å"Leadership is an observable, learnable set of practices. Leadership is not something mystical and ethereal that cannot be understood by ordinary people. Given the opportunity for feedback and practice, those with the desire and persistence to lead can substantially improve their abilities to do so.ââ¬
Thursday, January 9, 2020
Analysis Of Shakespeare s Hamlet By William Shakespeare
In Hamlet by William Shakespeare, human agency is demonstrated by the actions of Polonius and Claudius throughout the play. Human agency is defined as the extent of power to act freely in taking responsibility for oneââ¬â¢s actions, and the degree which intervention is possible by one to assert a will. In Hamlet, Claudius exerts his agency on the characters Laertes, and Rosencrantz and Guildenstern. Similarly, Polonius restricts the freedom of his daughter, Ophelia, and constrains her agency as well, accented by the patriarchal society around the characters at this time. Through characterization and an animated setting, human agency in Hamlet entices the reader to question the extent of power that an individual can exert oneââ¬â¢s force on aâ⬠¦show more contentâ⬠¦In this way, the two courtiers are nothing more than puppets for Claudius to use. Hamlet recognizes this inability to act as good friends and confronts them in the The Mousetrap scene. He discloses, ââ¬Å"You would play upon me, you would seem to know my stops, you would pluck out the heart of my mystery, you would sound me from my lowest note to the top of my compass.â⬠(3.2) Hamlet is cognisant of the true intentions of Rosencrantz and Guildenstern which are not honest at all, but rather, corrupted. Rosencrantz and Guildenstern, at this point in the play, have utterly lost their ties to Hamlet as a friend, and only see him as a puzzle that if deciphered, they can return and be praised by Claudius. According to Prof. McKinney, Rosencrantz and Guildenstern are like sponges to be soaked up and drained by Claudius and discarded when they are of no more use. Claudius has manipulated the minds of Rosencrantz and Guildenstern by way of desire for royal appeasement, and corrupts their ability to frankly help their childhood friend, Hamlet. Laertes is also a victim to the controlling power of Claudius. Laertes comes in a rage to the palace seeking revenge for the murder of his father, Polonius. Claudius takes advantage
Wednesday, January 1, 2020
Macon Bolling Allen, the First African-American Licensed Attorney
Macon Bolling Allen was not only the first African-American licensed to practice law in the United States, he was also the first to hold a judicial post. Allen was born A. Macon Bolling in 1816 in Indiana. As a free African-American, Allen learned to read and write. As a young adult, he gained employment as a schoolteacher. Allen Becomes an Attorney During the 1840s, Allen moved to Portland, Maine. Although it is unclear why Allen moved to Maine, historians believe it may have been because it was a free state. While in Portland, he changed his name to Macon Bolling Allen. Employed by General Samuel Fessendenââ¬âan abolitionist and lawyerââ¬âAllen worked as a clerk and studied law. Fessenden encouraged Allen to pursue a license to practice law because anyone could be admitted to the Maine Bar association if they were considered to have good character. However, Allen was initially rejected because he was not considered a citizen because he was African-American. However, Allen then decided to take the bar examination to bypass his lack of citizenship. On July 3, 1844, Allen passed the exam and became licensed to practice law. Yet, despite earning the right to practice law, Allen was unable to find much work as an attorney for two reasons: many whites were not willing to hire a black attorney and there were very few African-Americans living in Maine. By 1845, Allen moved to Boston. Allen opened an office with Robert Morris Sr. Their office became the first African-American law office in the United States. Although Allen was able to make a modest income in Boston, racism and discrimination were still present--preventing him from being successful. As a result, Allen took an exam to become a Justice of the Peace for Middlesex County in Massachusetts. As a result, Allen became the first African-American to hold a judicial position in the United States. Allen decided to relocate to Charleston following the Civil War. Once settled, Allen opened a law office with two other African-American attorneys--William J. Whipper and Robert Brown. The passing of the fifteenth amendment inspired Allen to become involved in politics and he became active in the Republican Party. By 1873, Allen was appointed a judge on the Inferior Court of Charleston. The following year, he was elected as a probate judge for Charleston County in South Carolina. Following the Reconstruction period in the south, Allen relocated to Washington D.C. and worked as a lawyer for the Land and Improvement Association. Abolition Movement After becoming licensed to practice law in Boston, Allen caught the attention of abolitionists such as William Lloyd Garrison. Allen attended an anti-slavery meeting in Boston. Most notably, he attended the anti-slavery convention in May 1846. At the convention, a petition was passed around in opposition to involvement in the Mexican War. However, Allen did not sign the petition, arguing that he was supposed to defend the United States Constitution. This argument was made public in a letter written by Allen that was published in the Liberator. However, Allen ended his letter arguing that he still adamantly opposed enslavement. Marriage and Family Life Very little is known about Allens family in Indiana. However, once moving to Boston, Allen met and married his wife, Hannah. The couple had five sons--John, born in 1852; Edward, born in 1856; Charles, born in 1861; Arthur, born in 1868 and Macon B. Jr., born in 1872. According to United States Census records, all of Allens sons worked as schoolteachers. Allens Death Allen died on October 10, 1894, in Washington D.C. He was survived by his wife and one son.
Monday, December 23, 2019
Similarities Between Edgar Allan Poe And Cask Of Amontillado
Edgar Allan Poe, a writer known for his mysterious and dark works, has had a lot of time perfecting his style of writing in short stories. His short stories, all usually dealing with the concept of death, relates back to his childhood, linking to his past experiences. As a small child, Poes father had abandoned his family, leaving his mother to take care of him and his sister. When Poe turned three, his mother had passed away due to tuberculosis. Exposed to death at such a young age, it connects to his writing style and how he incorporates death in his stories. Throughout the course of his childhood, Poe had encountered many other traumatic experiences dealing with the deaths of loved ones. The repeating occurrence of death in his lifeâ⬠¦show more contentâ⬠¦Based on The Cask of Amontillado, Montresor says, for the half of a century no mortal has disturbed them. In pace requiescat (Edgar Allan Poe 7). The phrase in pace requiescat translates to rest in peace. By using the phra se rest in peace, it gives the story mystery, putting an eerie tone to the story. Additionally, in the short story, The Black Cat, the narrator reminisces about the experiences he has had with his black cat. He and his wife, both animal lovers, had gotten many pets, his black cat, warming up to him immediately. Pluto, the cat, had been the narrators favorite pet, creating a special bond between them. The narrator soon developed a short temper, and had started to lash out on everyone around him, having sudden outbursts for nothing of significance. Pluto, who had once been his playmate, had turned into a creature that the narrator had felt such loathing and hatred towards. The black cat had followed the narrator, everywhere, acting like a shadow and pestering him. After days of complete and utter irritation and displeasure, the narrator scraped out the cats eye. Shortly after, the narrator hangs the cat, killing it immediately. A new black cat shows up and the narrator explains his fe elings towards the cat with specific words. Poe also uses word choice in The Black Cat to express a cruel and eerie tone throughout his story. He uses specific words to describe emotions that hisShow MoreRelatedThe Masque of the Red Death vs. the Cask of Amontillado1564 Words à |à 7 PagesLester Small LITR 220 24 February 2013 The Masque of the Red Death vs. The Cask of Amontillado ââ¬Å"The Masque of the Red Deathâ⬠and ââ¬Å"The Cask of Amontilladoâ⬠written by Edgar Allan Poe are somewhat different. The major themes of these stories differ significantly, as does the emphasis placed on each character which dealt more to The Cask of Amontilladoâ⬠than to ââ¬Å"The Masque of the Red Deathâ⬠Regardless of this, the stories are similar in many ways. For instance, both belong to the literacy of theRead MoreThe Cask Of Amontillado : William Shakespeare1450 Words à |à 6 PagesFinal Paper 17 December 2014 The Cask of Amontillado: Shakespeare in American Literature There are a few names in literature which represent the ability to captivate an audience with suspense and gloom. Though masters of different genres, Edgar Allen Poe and William Shakespeare both embody this unique ability. One of Poeââ¬â¢s work in particular resembles the beauty and darkness that is found in Shakespeareââ¬â¢s tragedies. In the intriguing short story ââ¬Å"The Cask of Amontillado,â⬠two wealthy gentlemen from anRead MoreCommen Elemements of Fiction 1570 Words à |à 7 Pagesliteracy genius Edgar Allen Poe. Most of Poeââ¬â¢s works do not have the slightest bit of joy or happiness in them. His literature mainly consists of a dark and gothic mood; mostly due to the fact that his actual life was worse than his stories. For those who have read a few of his stories or poems you might notice a similarity in plot. In his worksââ¬Å" The Cask of Amontillado,â⬠ââ¬Å" The Black Cat,â⬠and ââ¬Å" The Tell-Tale Heart,â⬠there is clear similarity of plot between the three stories. In ââ¬Å" The Cask of AmontilladoRead MoreComparing Fall of the House of Usher and The Cask of Amontillado1299 Words à |à 5 PagesCompare Contrast Edgar Allan Poe Short Stories Introduction The Fall of the House of Usher and The Cask of Amontillado are two of Edgar Allan Poes most well-known and noteworthy stories. This paper compares and contrasts the two stories and provides and outline as well. The Fall of the House of Usher is based on terror just as The Cask of Amontillado (hereafter called Cask) is based on terror but there are many different components that Poe uses that contrast with the Cask, and they willRead MoreAnalysis of Edgar Allan Poes Writing Style Essay776 Words à |à 4 Pageshorror, Edgar Allan Poe is known for his Gothic writing style. His style is created through his use of punctuation, sentence structure, word choice, tone, and figurative language. Punctuation-wise; dashes, exclamation marks, semicolons, and commas are a favorite of Poe. His sentences vary greatly; their structures are influenced by punctuation. Much of his word choice set the tone of his works. Figurative language colors his writings with description. Such is observed in the similarities between twoRead MoreEdgar Allan Poe s The Red Death And Cask Of Amontillado1595 Words à |à 7 Pages American author and poet, Edgar Allan Poe, was born January 19th, 1809, and died at the age of 40 on October 7th, 1849. Poe had a horrendous childhood. As a child, he was abandoned by his father, David Poe Jr., and later, his foster father, John Allan. His mother, Eliza Poe, died of tuberculosis, along with his foster mother, Frances Allan and Virginia Clemm, Poeââ¬â¢s wife. After the death of his wife, Poe attempted suicide out of grief. The traumatic events of his life affected Poeââ¬â¢s writing styleRead MoreFive Short Stories of Edgar Allan Poe Essay1311 Words à |à 6 PagesBarnabà ¡s Kanik Five short stories of Edgar Allan Poe Edgar Allan Poe (1809-1849) pioneered many of the most enduring forms of American popular culture, including detective story and the Gothic or sensational tale. I will compare and contrast five short stories of Poe: The Gold-Bug, The Purloined Letter, ââ¬Å"Thou Art the Manâ⬠, The Cask of Amontillado and The Pit and the Pendulum. The genre, the purpose and role of the narrator and the parallelism between all of the stories will be examined. Read More Big Heads and Short Tempers: Edgar Allan Poe in Context Essay2064 Words à |à 9 PagesEdgar Allan Poe was the epitome of a tormented genius. He possessed uncontrollable and self-inflicted internal problems. In addition, Poe was plagued by external difficultiesââ¬âsome preventable, some not. Most doctors today would pronounce Poe to be bipolar, chronically depressed, and perhaps even OCD. Most people today, and any day, would declare Poe to be self-obsessed and arrogant, orââ¬âat the leastââ¬âsnobbish. His personal life would also be considered less than ideal, though how much he was personallyRead MoreGothic Literature : The Dark Side Of Romanticism1518 Words à |à 7 PagesGothic literature is the dark side of Romanticism. The theme of Gothic stories is either mysterious, horror, or even death. Nathaniel Hawthorne and Edgar Allan Poe are authors that demonstrate Gothic literature. Some of their work include, ââ¬Å"The Cask of Amontilladoâ⬠written by Edgar Allan Poe and ââ¬Å"The Birthmarkâ⬠by Nathaniel Hawthorne. The Cask of Amontillado tells how the narrator Montresor seeks revenge on his acquaintance, Fortunato. Montresor to desperate measures and did not catch. However, in ââ¬Å"TheRead More Juxtaposing the Most Similar Contradiction in Edgar Allan Poes Work2077 Words à |à 9 PagesThroughout all of Edgar Allan Poes works are common ideas that oppose each such as madness versus sanity, reality versus the imagined reality and life versus death. Usually these sentiments are taken as contrasting ideas with little similarities to each other, like black and white. However, many of these motifs are situated in the grey category. Poe uses the communal thought pathway to highlight its antithesis; the pathway of grey. With the new pathway, he emphasizes the similarities of the opposing
Sunday, December 15, 2019
Background The Evolution of the Internet Free Essays
The Internet has undergone explosive growth since the first connections were established in 1969. This growth has necessitated an extremely large system scale-up that has required new developments in the technology of information transfer. These new developments allow simplified solutions to the problem of how to reliably get information from point A to point B. We will write a custom essay sample on Background The Evolution of the Internet or any similar topic only for you Order Now Unfortunately, the rapid pace of the required technological advancement has not allowed for optimal solutions to the scale-up problem. Rather, these solutions appear to have been the most convenient and practical at the time. Thus, the information transfer technology of todayââ¬â¢s internet does not guarantee the ââ¬Ëbest pathââ¬â¢ for data transmission. The definition of the best path may mean the most cost effective or the fastest path or some path based on optimization of multiple protocols, but the current technology used in the internet cannot guarantee that the best path for data transmission will be chosen. The result is a reduction in economic and system resource efficiency. The Evolution of the Internet The Internet has become integrated into the economic, technological and security infrastructure of virtually every country in the world. However, the internet had quite a humble beginning. It was originally designed as a back-up military communications network (MILNET) and as a university research communications network (National Science Foundation Network, NFSNET / Advanced Research Projects Agency Network, ARPANET). The original technology developed for these limited systems was not designed for the massive scale-up that has occurred since inception. Moreover, the original design of the internet system was based on the sharing of resources. The recent applications of the internet for commerce and proprietary information transfer processes make resource sharing an undesirable aspect. A more recent development is resource usage based on policies limiting what part of the internet can use a specific service or data transmission line. An Introduction to Networks and Routing What is a network? A network is a group of computers linked together by transmission lines that allow communication between the computers. Some of these computers are the equipment used by people on their desktop. Other computers in the network are computers that are designed only to direct traffic on the network or between different networks. Computer scientists often think of networks as large graphs with lines used to connect dots. The dots are called nodes and correspond to computers and the lines correspond to the transmission lines that connect the computers. The Internet is a giant network of smaller networks, called autonomous systems, that allows computers to be connected around the globe. What is routing? The process of transmitting information from a source computer to a destination computer is called routing. The way this is done can greatly effect how quickly the information is transmitted between the two computers. What is a router? A router is a computer with more than one connection to the rest of the network that is programmed to choose which transmission lines to send information. Some routers or designed to route information between networks, as on the Internet, while other routers work to route information between computers on the same network. How do routers route? In order for routers to choose the best route (or path) from the source computer to the destination computer, it is necessary that the routers communicate with each other about what computers and networks they are connected to and the routes that can be used to reach these computers and networks. Often these routes must go through other routers. What are advertisements? Advertisements are the messages sent between routers to communicate information about routes to reach each destination. What is convergence? Convergence occurs on the network or internet when all the routers know all the routes to all the destinations. The time required for all the routers to agree on the state of the network, the network topology, is known as the convergence time. When convergence does not occur, then data can be transmitted to a router which does not know how to get to a destination and this data is then lost. This is called a black hole. It is also possible that the data can be passed around a set of routers continuously without getting to the destination. This is called a routing loop. What is a data packet? When a large message is being transmitted, the message will probably be broken up into smaller messages called data packets, and these data packets may not all be sent by the same path across the Internet, although they will hopefully all reach the same destination What is a metric? A routing metric is a measure associated with a particular path between a source and a destination used by the router to decide what path is the best path. Typical metrics used by routing algorithms include path length, bandwidth, load, reliability, delay (or latency) and communication cost. Path length is a geometric measure of how long the transmission lines are. Bandwidth is used to describe the available transmission rate (bps) of a given section the possible transmission path. The load is the data packet transmission per unit time. The reliability of a data transmission path is essentially the number of errors per unit time. The delay in data transmission along a certain path is due to a combination of the metrics that have already been discussed, including geometric length of the transmission lines, bandwidth, and data traffic congestion. The communication cost is essentially the commercial cost of data transmission along a certain transmission line. What is a router protocol? A router protocol is the way the router is programmed to choose the best path for data transmission and communicate with other routers. This algorithm will consider path metrics associated with each path in a way defined by the by the manager of each AS. What is an internet address? In order for routers to identify the destination of a data transmission, every destination must have an address. The internet protocol (IP) method of addressing destinations uses a series of digits separated by dots. An example of an Internet address is 227. 130. 107. 5. Each of the 4 numbers separated by a dot has a value between 0 and 255. This range of values is set from the amount of computer memory designated for addressing at the beginning of the internet. The internet addressing scheme is similar to a scheme for international telephone calls. There is a ââ¬Ëcountry codeââ¬â¢ which is a fixed number for each country, and then there are other numbers which change on the phone number to refer to specific locations within the country. The numbers on the IP address for a network on the internet correspond to what would be the country code on an international phone number are referred to as ââ¬Ëprefixââ¬â¢. The other numbers on the IP address change to refer to individual computers on that particular network. A ââ¬Ënetmaskââ¬â¢ can also be used to specify which numbers on the IP address for a given network are fixed and which ones can be changed. A netmask is a series on ones and zeroes that can be put over the IP address. The part of the IP address under the ones is fixed as a network address. The part of the IP address under the zeros can be changed to indicate specific computers on the network. What is a Domain Name System (DNS), the domain name and the Uniform Resource Locator (URL)? The DNS is a combination of computer hardware and software that can rapidly match the text specification of an IP address, like www. helpmegetoutofthis. com, to an IP address. The part, helpmegetoutofthis. com, is called the domain name. The whole text, www. helpmegetoutofthis. com, is called the Uniform Resource Locator (URL). When you send an e-mail or use the Internet, you use the domain name and the URL to locate specific sites. This allows people to type in the text name, or domain name, of an internet site into the Netscape browser instead of trying to remember the numerical IP address. The DNS automatically matches the text name to the IP address for the user when the transmission request is submitted. What are servers and clients? All of the computers on the Internet are classified as either servers or clients. The computers that provide services to other computers are called servers. The computers that connect to servers to use the services are called clients. Examples of servers are Web servers, e-mail servers, DNS servers and FTP servers. The computers used at the desktop are generally clients. How the internet works. Although the details of routing and software are complex, the operation of the internet from the usersââ¬â¢ perspective is fairly straight forward. As an example of what happens when the Internet is used, consider that you type the URL www. helpmegetoutofthis. com into the Netscape browser. The browser contacts a DNS server to get the IP address. A DNS server would start its search for an IP address. If it finds the IP address for the site, then it returns the IP address to the browser, which then contacts the server for www. helpmegetoutofthis. com, which then transmits the web page to your computer and browser so you can view it. The user is not aware that of the operation of an infrastructure of routers and transmission lines behind this action of retrieving a web page and transmitting the data from one computer to another. The infrastructure of the internet can be seen as a massive array of data relay nodes (routers) interconnected by data transmission lines, where each node can service multiple transmission lines. In the general case where information must be sent across several nodes before being received, there will be many possible pathways over which this transmission might occur. The routers serve to find a path for the data transmission to occur. The routing of a file or data packets of a file is either be done by the technique of source routing or the technique of destination routing. In source routing, the path the data transmission will follow id specified at the source of the transmission, while destination routing is controlled by the routers along the path. In the modern internet, almost all routing is done by destination routing because of security issues associated with source routing. Thus, the routers must be programmed with protocols that allow a reasonable, perhaps optimum, path choice for each data packet. For the routers to choose an optimum path also requires that the interconnected routers communicate information concerning local transmission line metrics. Router communication is thus itself a massive information transfer process, given that there is more than 100,000 networks and millions of hosts on the Internet. When viewing the enormity of the problem, it is perhaps easier to understand why engineers have accepted a sub-optimal solution to the problem of efficiency in data transfer on the Internet. When initially confronting a problem, the practical engineering approach is to simplify the problem to the point where a working solution can be obtained and then refine that solution once the system is functional. Some of the simplifying assumptions used by engineers for the current internet data transmission system include 1) A transmission line is never over capacity and is always available as a path choice. 2) The performance of the router and transmission line does not depend on the amount of traffic. These two assumptions do simplify the problem of path choice considerably because now all the transmission lines and nodes may be considered equal in capacity and performance completely independent of traffic. As such, it is a much simpler optimization problem consisting of finding the route with the shortest path length. To simplify the problem even further, another assumption is made: 3) Consider that an ââ¬Å"Autonomous Systemâ⬠(AS), is a small internet inside the Internet. An AS is generally considered to be a sub-network of an Internet with a common administrative authority and is regulated by a specific set of administrative guidelines. It is assumed that every AS is the same and provides the same performance. The problem of Internet routing can now be broken down into the simpler problem of selecting optimum paths inside the AS and then considering the optimum paths between the AS. Since there are ââ¬Ëonlyââ¬â¢ around 15,000 active ASââ¬â¢s on the Internet, the overall problem is reduced to finding the best route over 15,000 AS nodes, and then the much simpler problem of finding the best route through each AS. There is an important (to this thesis) set of protocols which control the exchange of routing information between the ASââ¬â¢s. The sort of routers in an AS which communicates with the rest of the internet and other ASââ¬â¢s are called border routers. Border routers are controlled by a set of programming instructions known as Border Gateway Protocol, BGP. A more detailed discussion of computer networking principals and the Internet facts can be found in e. g. [7]. An Introduction to Router Protocols. Routers are computers connected to multiple networks and programmed to control the data transmission between the networks. Usually, there are multiple paths that are possible for transmission of data between two points on the Internet. The routers involved in the transmission between two points can be programmed to choose the ââ¬Ëbest pathââ¬â¢ based on some metric. The ââ¬Ëprotocolsââ¬â¢ used to determine the path for data transmission are routing algorithms. Typical metrics used by routing algorithms include path length, bandwidth, load, reliability, delay (or latency) and communication cost. Path length. Path length is a geometric measure of how long the transmission lines are. The routers can be programmed to assign weights to each transmission line proportional to the length of the line or each network node. The path length is then the sum of the weights of the nodes, lines or lines plus nodes along the possible transmission path. Bandwidth. Bandwidth is used to describe the available transmission rate (bps) of a given section the possible transmission path. An open 64 kbps line would not generally be chosen as the pathway for data transmission if an open 10 Mbps Ethernet link is also open, assuming everything else is equal. However, sometimes the higher bandwidth path is very busy and the time required for transmission on a busy, high bandwidth line is actually longer than on a path with a lower bandwidth. Load. This data packet transmission per unit time or the percent of CPU utilization of a router on a given path is referred to as the load on this path. Reliability. The reliability of a data transmission path can be quantitatively described as the bit error rate and results in the assignment of numeric reliability metrics for the possible data transmission pathways. Delay. The delay in data transmission along a certain path is due to a combination of the metrics that have already been discussed, including geometric length of the transmission lines, bandwidth, and data traffic congestion. Because of the hybrid nature of the communications delay metric, it is commonly used in routing algorithms. Communication Cost. In some cases, the commercial cost of data transmission may be more important the time cost. Commercial organisations often prefer to transmit data over low capacity lines which they own as opposed to using public, high capacity lines that have usage charges. The routing algorithms do not have to use just one metric to determine the optimum route; rather it is possible to choose the optimum route based on multiple metrics. In order for the optimum path to be chosen by the routers between the data source and the data destination, the routers must communicate information about the relevant metrics with other routers. This nature of this communication process is also defined by the routing algorithm and the transmission time is linked to the time required for the routers to have the necessary information about the states of the surrounding routers. The time required for all the routers to agree on the state of the network, the network topology, is known as the convergence time and when all routers are aware of the network topology, the network is said to have converged. Some of the common routing algorithm types can indeed affect the convergence of the network. Some of the different algorithms characteristics that must be chosen when designing are static or dynamic routing, single path or multi-path routing and link state or distance vector routing. Static Routing. Static routing is done by use of a static list of attributes describing the network topology at the initiation of the network. This list, called a routing table, is used by the routers to decide the optimum routes for each type of data transmission and can only be changed manually. Therefore, if anything changes in the network, such as a cable breaking or a router crashing, the viability of the network is likely to be compromised. The advantage is that there is no communication required between routers, thus the network is always converged. Dynamic Routing. In contrast to static routing, dynamic routing continually updates the routing tables according to changes that might occur in the network topology. This type of real time information processing allows the network to adjust to variations in data traffic and component reliability, but does require communication between the routers and thus there is a convergence time cost associated with this solution. Single Path vs Multi-path Routing. Single path and muli-path routing are accurate descriptive terms regarding the use of either a single line to send multiple packets of data from a given source to a given destination as opposed to using multiple paths to send all the data packets from the source to the destination. Multiple path algorithms achieve a much higher transmission rate because of a more efficient utilization of available resources. Link State vs Dynamic Routing Protocols. Link-state algorithms are dynamic routing algorithms which require routers to send routing table information to all the routers in the network, but only that information which describes its own operational state. Distance-vector algorithms, however, require each router to send the whole of its router table, but only to the neighbouring routers. Because the link-state algorithms require small amounts of information to be sent to a large number of routers and the distance vector algorithm requires large amounts of information sent to a small number of routers, the link state algorithm will converge faster. However, link state algorithms require more system resources (CPU time and memory). There is a new type of algorithm developed by CISCO which is a hybrid of the link-state algorithm and the distance vector algorithm [8].. This proprietary algorithm converges faster than the typical distance-vector algorithm but provides more information to the routers than the typical link-state algorithm. This is because the routers are allowed to actively query one another to obtain the necessary information missing from the partial tables communicated by the link-state algorithms. At the same time, this hybrid algorithm avoids communication of any superfluous information exhibited in the router communications of the full tables associated with distance-vector algorithm. Switching. The distance vector, link state or hybrid algorithms all have the same purpose, to insure that all of the routers have an updated table that gives information on all the data transmission paths to a specific destination. Each of these protocols requires that when data is transmitted from a source to a destination, the routers have the ability to ââ¬Ëswitchââ¬â¢ the address on the data transmission. When a router receives a data packet from a source with the destination address, it examines the address of the destination. If the router has a path to that destination in the routing table, then the router determines the address of the next router the data packet will ââ¬Ëhopââ¬â¢ to and changes the physical address of packet to that of the next hop, and then transmits the packet. This process of physical address change is called ââ¬Ëswitchingââ¬â¢. It will be repeated at each hop until the packet reaches the final destination. Although the physical address for the forwarding transmission of the data packet changes as the packet moves across the Internet, the final destination address remains associated with the packet and is a constant. The internet is divided up into hierarchical groups that are useful in the description of the switching process. At the bottom of this hierarchy are network devices without the capability to switch and forward packets between sub-networks, where an AS is a sub-network. These network devices are called end systems (ESs), because if a packet is transmitted there, it cannot be forwarded and has come to the end. At the top of the hierarchy are the network devices that can switch physical addresses are called intermediate systems (ISs). An IS which can only forward packets within a sub-network are referred to as intra-domain ISs while those which communicate either within or between sub-networks are called intra-domain ISs. Details of Routing Algorithms Link State Algorithms In a link state algorithm, every router in the network is notified of a topology change at the same time. This avoids some of the problems associated with the nearest neighbour update propagation that occurs in the distance vector algorithms. The ââ¬ËOpen Shortest Path Firstââ¬â¢ (OSPF) protocol uses a graph topology algorithm like Dijkstraââ¬â¢s Algorithm to determine the best path for data transmission between a given data source and a data destination. The metric used for route optimisation is specific to the manual configuration of the router. However, the default metric is the speed of the interface. The OSPF uses a two level, hierarchical network classification. The lower level of hierarchy is groups of routers called areas. All the routers in an area have full knowledge of all the other routers in the area, but reduced knowledge of routers in a different area. The different areas organized within the OSPF algorithm are connected by border routers, which have full knowledge of multiple areas. The upper level of the hierarchy is the backbone network, to which all areas must be connected. That is, all data traffic going from one area to another must pass through the backbone routers. Distance Vector Algorithms In order for data to be transmitted from a source to a destination on the Internet, the destination must be identified using some mechanism. That is, each possible destination for data transmission must be described with an address. The scheme currently used to address the internet space is the Internet Protocol (IP) version 4. The IP version 4 uses an address length limited by 32 bits. An example of an Internet address is 227. 130. 107. 5 with the corresponding bit vector 11100011 10000010 01101011 00000101. An initial difficulty in managing the available address space was the implementation of a class structure, where large blocks of internet address space was reserved for organisations such as universities, leaving commercial applications with limited address space. Routing of data transmission in this address environment was referred to as class-full routing. To alleviate this problem of limited address space, the internet community has slowly evolved to a classless structure, with classless routing. In distance vector protocols, each router sends adjacent routers information about known paths to specific addresses. The neighbouring routers are sent information giving a distance metric of each one from a destination address. The distance metric could be the number of routers which must be used to reach the destination address, known as the ââ¬Ëhop countââ¬â¢, or it could be the actual transmission distance in the network. Although this information is advertised only to the adjacent routers, these routers will then communicate the information with their neighbouring routers, and so on, until the entire network has the same information. This information is then used to build the routing table which associates the distance metric with a destination address. The distance vector protocol is implemented when a router receives a packet, notes the destination, determines the path with the shortest distance to the destination and then forwards the packet to the next router along the shortest distance path. One of the first distance vector protocols implemented on the Internet was the Routing Information Protocol (RIP). RIP uses the distance metric of hop count to determine the shortest distance to the destination address. It also implements several protocols to avoid having data packets pass through the same router more than once (router loops). The path vector protocol is a distance vector protocol that includes information on the routes over which the routing updates have been transmitted. It is this information on path structure which is used to avoid routing loops. Path Vector Protocols are also somewhat more sophisticated than RIP because an attempt is made to ââ¬Ëweightââ¬â¢ each path based on a locally defined criteria that may not simply reflect the highest quality of service, but rather the highest profit for an ISP. The implementation of these types of router algorithms may be different in different parts of the Internet. When the algorithms are implemented inside an autonomous system, they are called Interior Gateway Protocols (IGP). Because the different autonomous systems that make up the Internet are independent from one another, the type of routing algorithm used within the autonomous systems can also be independent of one another. That is, the managers of each autonomous system are free to choose the type of algorithm which best suits their particular network, whether it is static or dynamic link-state or dynamic distance-vector. When the algorithms are implemented to control data transmission between autonomous systems, they are referred to as Exterior Gateway Protocols (EGP). The EGP connect all autonomous systems together to form the Internet and thus all EGP should use the same algorithm. The specific algorithm currently used as the EGP on the Internet is the Border Gateway Protocol (BGP), which is a type of distance vector algorithm called a path vector algorithm [9]. A path vector algorithm uses information about the final destination of the data transmission in addition to the attributes of the neighbouring links. It should be noted that the BGP algorithm can also be used as a router protocol within an autonomous system and is called an interior BGP (IBGP) in that instance. This necessitates calling the BGP an EBGP when it is implemented as an EGP. How to cite Background The Evolution of the Internet, Papers
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