Dynamic Programming Essay

Dynamic Programming is a mathematical technique dealing with the optimization of multistage decision processes. In this technique, decisions regarding a certain problem are typically optimized in stages rather than simultaneously. This generally signifies that the original decision problem is divided into small sub-problem (stages) which can then be handled more efficiently from the computational view point. Basic Elements of Dynamic Programming To apply Dynamic Programming, we have to pay special attention to the three basic elements of the DP Model. They are: 1. Definition of the stages. 2. Definition of the alternatives at each stage. 3. Definition of the states for each stage. Definition of the states varies depending on the situation being modeled. Nevertheless, as we investigate each application, we will find it helpful to consider the following questions: 1. What relationships bind the stages together? 2. What information is needed to make feasible decisions at the current stage without reexamining the decisions made at previous stages? Application of the Dynamic Programming in the Business World We will try to present three application models and finally a worked out implementation of Dynamic Programming showing the superiority of DP over the usual or straight forward method of solution. 1. Work Force Model: In some construction projects, hiring and firing are exercised to maintain a labour force that meets the needs of the project. Given that the activities of hiring and firing both incur additional costs. In such cases, through the implementation of DP Model, we can get the optimum result regarding how the labor force should be maintained throughout the life of the project. For example: A construction contractor estimates that the size of the work force needed over the next 5 weeks is to be 5, 7, 8, 4 and 6 workers respectively. Excess labor kept on the force will cost $300 per week and new hiring in any week will incur a fixed cost of $400 plus $200 per worker per week. The elements of this DP model are: 1. Stage i Such problem can optimally be solved through DP Model. Equipment Replacement Model: The longer a machine stays in service, the higher is its maintenance cost, and the lower its productivity. When a machine reaches a certain age, it may be more economical to replace it. The problem thus turns into determining the most economical age of a machine. Suppose that we are studying the machine replacement problem over a span of n years. At the start of each year, we decide whether to keep the machine in service an extra year or to replace it with a new one. For example: Shajib Farms wants to develop a replacement policy for its 2-year-old tractor over the next 5 years. A tractor must be kept in service for at least 3 years, but must be disposed of after 5 years. The current purchase price of a tractor is $40,000 and increases by 10% a year. The salvage value of a 1-year-old tractor is $30,000 and decreases by 10% a year. The current annual operating cost of the tractor is $1,300 but is expected to increase by 10% a year. Such problem can optimally be solved easily by applying DP Model. Investment Model We commonly assume that an investor wants to maximize â€Å"Total Return†. Suppose that Mr. Jamal wants to invest Tk. 4,000,000 (4 Million) now and 2,000,00 (2 Million) at the starts of years 2 to 4. The interest rate offered by NCC Bank is 8% compounded annually and the bonuses over the next 4 years are 1.8%, 1.7%, 2.1% and 2.5% respectively. The annual interest rate offered by Eastern Bank is 2% lower than that of NCC Bank, but its bonus is .5% higher. The objective is to maximize the accumulated capital at the end of 4 years. Such problem can also optimally be solved easily by applying DP Model. A company is selecting the advertising for its productand the frequency of advertising by each material are shown in the following table: |Frequency per week |Expected Sales (In Tk. 1,000) | | |Television |Radio |Newspaper | |0 |0 |0 |0 | |1 |25 |20 |33 | |2 |42 |38 |43 | |3 |55 |54 |47 | |4 |63 |65 |50 | We have to determine the optimum combination of advertising frequency and sales. Solution: States: Let X1= The frequency of advertisement at stage-1 (0~6) X2= The frequency of advertisement at stage-2 (0~6) X3= The frequency of advertisement at stage-3 (=6) S= Total Frequncy Stage-1 |Total Frequency (S) |Frequency at |Expected Sales | | |Stage-1(X1) | | |0 |0 |0 | |1 |1 |25 | |2 |2 |42 | |3 |3 |55 | |4 |4 |63 | Stage-2 | X2 |f 2(S, X2)=R2(X2)+ f 1*(S-X2) | | | | | |f2*(S) |X2* | |S | | | | | |0 |1 |2 |3 |4 | | | |0 |0+0=0 | | | | |0 |0 | |1 |0+25=25 |20+0=20 | | | |25 |0 | |2 |0+42=42 |20+25=45 |38+0=38 | | |45 |1 | |3 |0+55=55 |20+42=62 |38+25=63 |54+0=54 | |63 |2 | |4 |0+63=63 |20+55=75 |38+42=80 |54+25=79 |65+0=65 |80 |2 | Stage-3 | X2 |f 3(S, X3)=R3(X3)+ f 2*(S-X3) | | | | | |f3*(S) |X3* | |S | | | | | |0 |1 |2 |3 |4 | | | |4 |0+80=80 |33+63=96 |43+45=88 |47+25=72 |50+0=50 |96 |1 | Now we can derive the optimal values: X1=1 X2=2 X3=1 Expected Sales= 96,000 Usual or Straight forward method of solution √ Circle indicates alternative plans at each stage & √ Arrows represent the decision. The features of the above exhaustive enumeration scheme are: 1. All the decisions of any combination must specified before a combination can be evaluated. Here during solution, we have to make 64 alternative plans first. 2. An optimum policy cannot be determined until all combinations have been evaluated. This method is inefficient because some of the combination may not be feasible. 3. In other cases the number of combination may be too large to allow exhaustive listing. The Dynamic Programming approach avoids the above mentioned difficulties by first breaking up the problem into smaller sub-problems which are called stages in DP. A stage here signifies a portion of the problem for which a separate decision can be made.

Why Obama Won the 08 Presidential Election

Why Obama Won the 08 Presidential Election Barack Obama decisively won the presidential election, for many solid reasons and due to many factors, including weaknesses of his Republican opponent, Sen. John McCain. This article enumerates and explains the five top reasons why Obama won win the 2008 race to become the 44th President of the United States. Reasons Why Barack Obama Won the 2008 U.S. Presidential Election Reason #1 - Empathy and Genuine Help for Middle-Class Americans Barack Obama gets what it means for a family to worry financially, to work hard simply to make it, and to do without essentials. Obama was born to a teenage mother, abandoned by his father at age two, and raised largely in a small apartment by his middle-class grandparents. At one point, Obama, his mother, and younger sister relied on food stamps to put meals on the family table. Michelle Obama, close counselor and best friend to her husband, and her brother were similarly raised in modest circumstances in a one-bedroom apartment on the south side of Chicago. Both Barack and Michelle Obama speak frequently about what it means for middle-class Americans to be at a disadvantage financially and otherwise. Because they get it, both Obamas refer with heartfelt eloquence to middle-class fears, including to: the climbing unemployment ratethe staggering home foreclosure rate gripping the nationcrashing 401(k) and pension plans, leaving retirements in limbo48 million Americans without healthcare insurancehigh percentages of public schools failing our childrenthe continuing struggle of middle-class families to balance work and parenting demands In vivid contrast, John and particularly Cindy McCain exude an aura of financial insularity and well-heeled elegance. Both were born wealthy, and have been quite wealthy for their entire lives. When cornered by Pastor Rick Warren several months ago, John McCain defined rich as I think if youre just talking about income, how about 5 million. Middle-class anger is palpable about economic fairness in these unusually tough financial times, and subsequent to what many viewed as President Bushs $700 billion bailout of rich Wall Streeters. Obama offered actual, understandable policy solutions to help middle-class Americans, including: a detailed 12-point program to repair the economy for middle-class families, including a $1,000 tax cut, creation of 5 million new jobs, protection of family homes from foreclosure, and reform of unfair bankruptcy laws.a Small Business Emergency Rescue Plan which includes emergency lending for small and family-owned businesses, special tax incentives, and tax cuts, and expansion of Small Business Administration support and services.a specific plan to reform Wall Street practices, including new regulation of the financial markets, to blunt the greedy influence of special interests, crackdown on manipulation of financial markets, and more. John McCains tin ear on middle-class financial woes were evident in his prescription for the economy: more tax-cuts for major corporations, and continuation of the Bush tax cuts for U.S. millionaires. And this McCain stance is consistent with his stated desires to slash Medicare and privatize Social Security. The American public is fed-up with failed Bush/McCain economics, which claim that prosperity will eventually trickle down to everyone else. Obama won the presidential race largely because voters correctly perceive that he, and not John McCain, care about and will address middle-class economic struggles and inequities. Reason #2 - Steady Leadership and Calm Temperament As of October 21, 2008, Barack Obama earned more than 120 newspaper endorsements, versus 33 for John McCain. Without exception, every Obama endorsement referred to his presidential-like personal and leadership qualities. And all echo the same basics about Obamas calm, steady, thoughtful nature, versus McCains impetuousness and unpredictability. Explained  The Salt Lake Tribune, which has rarely endorsed a Democrat for president: Under the most intense scrutiny and attacks from both parties, Obama has shown the temperament, judgment, intellect and political acumen that are essential in a president that would lead the United States out of the crises created by President Bush, a complicit Congress and our own apathy. Summed  The Los Angeles Times: We need a leader who demonstrates thoughtful calm and grace under pressure, one not prone to volatile gesture or capricious pronouncement... as the presidential race draws to its conclusion, it is Obamas character and temperament that come to the fore. It is his steadiness. His maturity. And from  The Chicago Tribune, founded in 1847, which has never before endorsed a Democrat for the presidency: We have tremendous confidence in his intellectual rigor, his moral compass and his ability to make sound, thoughtful, careful decisions. He is ready... Obama is deeply grounded in the best aspirations of this country, and we need to return to those aspirations.... He has risen with his honor, grace and civility intact. He has the intelligence to understand the grave economic and national security risks that face us, to listen to good advice and make careful decisions. In contrast, during the past two months of the 08 presidential campaign, John McCain acted (and overreacted) inconsistently, unpredictably, and without forethought. Two examples of McCains unsteady leadership were his erratic behavior during the financial markets meltdown, and in his poorly-vetted pick of Sarah Palin as his running mate. John McCain served as the perfect foil to highlight Obamas solidly grounded leadership skills. Obamas even-keel temperament made him seem well-suited to be President for these troubled, turbulent times. And the mere image of ultra-volatile, careless John McCain in the White House was enough to scare the majority of the electorate into supporting Obama. Reason #3 - Fair, Cost-Effective Health Care Insurance Americans were finally fed-up enough with the unfairness of health care delivery in this country, to be ready to make the issue a priority in selecting a president. The U.S. is the only wealthy, industrialized nation that does not have a universal health care system. As a result, in 2008, more than 48 million U.S. men, women, and children have no healthcare insurance. Despite being ranked #1 in health care spending by the World Health Organization (WHO), the U.S. was ranked  72nd among 191 nations  in 2000 in overall level of health of its citizens. And the state of U.S. healthcare deteriorated further under the Bush administration. Barack Obamas health care plan and policies will fairly ensure that every American will have access to good quality medical care services. John McCains health care plan was a stunningly radical scheme that will: still exclude millions of the uninsured,raise income taxes for most American families and,in the opinion of most experts, causes millions of employers to drop health care policies for their employees. And unbelievably, McCain wanted to deregulate the healthcare insurance industry, much as Republicans disastrously deregulated U.S. financial markets under President George Bush. Obamas Health Care Plan Briefly, Obama will make available a new plan to all Americans, including the self-employed and small businesses, to buy affordable health coverage that is similar to the plan available to members of Congress. The new plan will include: Guaranteed eligibilityNo one will be turned away from any insurance plan because of illness or pre-existing conditionsComprehensive benefitsAffordable premiums, co-pays, and deductiblesEasy enrollmentPortability and choice Employers that do not offer or make a significant contribution to the cost of quality health coverage for their employees will be required to contribute a percentage of payroll toward the costs of this plan. Most small businesses will be exempt from this mandate. The Obama plan requires only that all children have health care coverage. McCains Health Care Plan John McCains health care plan was designed to control health care costs and to deregulate, and thus enrich, the healthcare industry, and is not necessarily designed to offer health care coverage to the uninsured. For consumers, the McCain plan: required that insurance policies from employers be included in employees taxable income, along with salary and bonuses, thereby causing employees income taxes to increase;then provided a $5,000 tax credit to partially offset increased income taxes;deleted the employee health care insurance income tax deduction for all employers. Innumerable experts predicted that these massive McCain changes would: cause the taxable income of the average family of four to rise by about $7,000;cause employers to drop health care insurance for employees;would cause an increase, not decrease, in Americans without health care coverage. McCains plan was intended to push millions of Americans into the market to buy their own individual health care policies, which will be offered by a newly deregulated healthcare insurance industry. Newsweek reported, The Tax Policy Center estimates that 20 million workers will leave the employer-based system, not always voluntarily. Midsize and smaller companies are likely to drop their plans... CNN/Money added, McCain sorely lacks a plan for people in their 50s without corporate benefits, and Americans with pre-existing conditions, who would be brutally stripped of coverage if insurance crosses state lines. Observed blogger Jim MacDonald, The result... won’t be healthy competition that will lower costs for everyone. It’ll be higher costs and fewer options for the poor, the old, and the sick. That is, the people who need health care. Young, healthy, rich people won’t be affected... Obamas Plan: The Only Viable Choice In summary, Obamas plan, in which long-time health care advocate Hillary Clinton will be deeply involved, will fairly and inexpensively ensure that all Americans have access to quality health care services, but without the government providing those services. McCains so-called health care plan was intended to free the business community from providing for its employees, to enrich the healthcare insurance industry, and increase income taxes for all Americans. But not to provide health care services for the uninsured. For anyone who valued their health care insurance, Barack Obama was the only viable choice for president. Reason #4 - Withdrawal of Combat Troops from Iraq Barack Obama bested Hillary Clinton by a small margin for the 08 Democratic presidential nomination due mainly to their differing positions on the Iraq War, especially at the wars inception in 2002. Sen. Hillary Clinton  voted YES in 2002  to give the Bush administration authorization to attack and invade Iraq. Sen. Clinton rightfully believes that Congress was misled by Bush, and after a while, she admitted her regret for her vote. But Clintons 2002 support for the unpopular war was brutal fact. In contrast, Barack Obama famously  spoke out in late 2002 against the Iraq War  before Congress voted, declaring: I dont oppose all wars. What I am opposed to is a dumb war. What I am opposed to is a rash war. What I am opposed to is the cynical attempt... to shove their own ideological agendas down our throats, irrespective of the costs in lives lost and in hardships borne. What I am opposed to is the attempt by political hacks like Karl Rove to distract us from a rise in the uninsured, a rise in the poverty rate, a drop in the median income, to distract us from corporate scandals and a stock market that has just gone through the worst month since the Great Depression. Obama on the Iraq War Obamas stance on the Iraq War  is unambiguous: he plans to immediately begin to remove our troops from Iraq. He will remove one to two combat brigades each month, and have all of our combat brigades out of Iraq within 16 months. Under an Obama administration, the U.S. will not build or maintain any permanent bases in Iraq. He, of course, plans to temporarily maintain some non-combat troops in Iraq to protect our embassy and diplomats, and to complete the training of Iraq troops and police forces, as necessary. Also, Obama plans to launch the most aggressive diplomatic effort in recent American history to reach a new compact on the stability of Iraq and the Middle East. This effort will include all of Iraq’s neighbors, including Iran and Syria. McCain on the Iraq War McCain, a third generation Naval officer, voted in 2002 to give President Bush full authority to attack and invade Iraq. And hes continually served as supporter and cheerleader for the U.S. War in Iraq, albeit with occasional objections to strategies. At the 08 Republican Convention and on the campaign trail, McCain and running mate Gov. Palin frequently proclaimed a goal of victory in Iraq and scoff at withdrawal timetables as foolish and premature. McCains website proclaimed ... it is strategically and morally essential for the U.S. to support the Government of Iraq to become capable of governing itself and safeguarding its people. He strongly disagrees with those who advocate withdrawing American troops before that has occurred. McCain took this stance: despite the  $12 billion monthly pricetag  to U.S. taxpayers;despite the fact that the Iraqi government has a substantial budgetary surplus;despite mounting deaths and permanent maimings of U.S. soldiers;despite exhaustion of U.S armed forces;despite the crippling effect the Iraq War has on U.S. armed forces abilities to address other conflicts and emergencies. General Colin Powell, former Chairman of the Joint Chiefs of Staff and former Secretary of State, disagreed with McCain, as did General Wesley Clark, former Supreme Allied Commander Europe of NATO, and as do dozens of other retired generals, admirals and other top brass. Heres the really odd part: the Bush administration also disagreed with John McCain. Per various international  sources on October 20, 2008, the U.S. is finalizing negotiations on a security agreement with Iraq: The agreement also contains a timetable for the withdrawal of the U.S. military from Iraqi cities and towns by June 30, 2009 and from Iraqi territory by Dec. 31, 2011. Even General David Petraeus, often referred to with great reverence by McCain,  recently told the British press  that he would never use the word victory to describe U.S. involvement in Iraq and  commented: This is not the sort of struggle where you take a hill, plant the flag and go home to a victory parade... its not war with a simple slogan. The hard truth is that John McCain, Vietnam War POW, was obsessed with the Iraq War. And he couldnt seem to shake his angry, unhealthy obsession despite either reality or exorbitant cost. U.S. Voters Want Out of Iraq Per  CNN/Opinion Research Corp. polling  from October 17 to 19, 2008, 66% of all Americans disapprove of the Iraq war. Barack Obama was on the correct side of this issue, per the entire voting public, especially per the centrist, swing voters who decide most election outcomes. Barack Obama won the 2008 presidential election in part because he consistently exhibited wise judgment on the Iraq War, and because he insists on the obviously correct course of action. Reason #5 - Joe Biden as Running Mate Sen. Barack Obama won the presidency in part because of his wise selection of highly experienced, well-liked Sen. Joe Biden of Delaware as his vice-presidential running mate. The first job of the vice president is to assume the presidency should the president become incapacitated. No one doubts that Joe Biden is fully prepared to become President of the United States, should that terrible occasion arise. The second job of the vice president is to be of constant counsel to the president. In his 36 years in the U.S. Senate, Biden is one of the  most respected American leaders on foreign policy, the U.S. judiciary, crime, civil liberties, and many other vital areas. With his gregarious, warm personality, Biden is suited to offer direct, smart counsel to the 44th president, as he has done for many other U.S. presidents. As an added bonus, the working chemistry and mutual respect between Obama and Biden is excellent. For Americans concerned about Barack Obamas level of experience, Joe Bidens presence on the ticket added a large dose of gravitas. Had he selected one of the able, but far less experienced candidates on this short list (Kansas Gov. Kathleen Sebelius and Virginia Gov. Tim Kaine, to name two top contenders), Barack Obama may have been less likely to reassure a majority of voters that the Democratic ticket was experienced enough to tackle todays tough issues. Joe Biden vs. Sarah Palin Joe Bidens deep grasp of the issues, appreciation of U.S. history and laws, and steady, experienced leadership were in jarring contrast to that of Alaska Gov. Sarah Palin, the Republican vice-presidential candidate. Republican nominee, 72-year-old John McCain, has wrestled with three episodes of melanoma, the most aggressive form of skin cancer, and gets an in-depth skin cancer check every few months. Mr. McCains serious health challenges greatly increased the risk that he could become incapacitated and/or pass away in office, which would require his vice president to become President of the United States. It was widely recognized, even by a plethora of conservative pundits, that Sarah Palin was wholly unprepared to assume the presidency. In contrast, Joe Biden was widely regarded as well prepared to assume the presidency. Due to these five important political factors, Barack Obama won the November 4, 2008 election to become the 44th President of the United States.

The Pre-Trial Motions Stage of a Criminal Case

The Pre-Trial Motions Stage of a Criminal Case After it is decided that a criminal case will proceed to trial, pre-trial motions can be presented to the court that can influence how the trial is conducted. Those motions can address many different topics and issues. Pre-trial motions can address the evidence to be presented at the trial, the witnesses who will testify and even the type of defense the defendant can present. For example, if a defendant plans to plead not guilty by reason of insanity, a pre-trial motion must be made to the court and a hearing conducted to determine if that defense will be allowed. The same is true if the defendant pleads guilty but mentally ill. Each pre-trial motion can prompt a mini-trial before the judge in which witnesses can be presented. Most pre-trial motion hearings consist of the prosecution and defense making oral arguments to support their case, along with written arguments citing case law precedents. In pre-trial motions, the judge makes the final decision. There is no jury present. For each side, depending on how the judge rules, that ruling can be the basis for a future appeal. The defense can argue that the judge made an error in the ruling, affecting the outcome of the eventual trial. Pre-trial motions can address a broad range of issues. Some common ones include: Motion to Dismiss An attempt to get a judge to dismiss a charge or the entire case. If may be used when there is not enough evidence or when the evidence or facts in the case do not equal a crime. It is also filed when the court does not have the authority or jurisdiction to make a ruling in the case. For example, if a will is being contested, the case would have to be decided by a probate court and not a small claims court. A motion to dismiss the case based on lack of subject matter jurisdiction would likely be filed. Motion for Change of Venue Most often a request for a change of venue of the trial is due to pre-trial publicity. Famous Cases When Changes of Venue were Granted The four Los Angeles police officers charged with assault of Rodney King in 1991, had their trial moved from  Los Angeles County to  Ventura County.Oklahoma City Bomber Timothy McVeigh was granted a change of venue  from Oklahoma to the U.S. District Court in Denver, Colorado.Beltway snipers Lee Boyd Malvo and John Allen Muhammad had their trials moved from northern Virginia to Chesapeake and Virginia Beach, in southeastern Virginia. Motion to Suppress Evidence Used to keep certain statements or evidence from being introduced as evidence. Seasoned judges will not admit any statement or evidence into evidence that could serve as a basis for a reversal of a conviction. A motion to suppress evidence often addresses issues such as Evidence seized illegally.Confessions wrongly obtained.Statements improperly obtained.If there was probable cause to make an arrest. For example, if police conducted a search without probable cause (in violation of the Fourth Amendment), an attempt to suppress the evidence found as a result of that search might be granted. The Casey Anthony Case; Motion to Suppress Evidence Casey Anthony was found not guilty of first-degree murder, aggravated child abuse, and aggravated manslaughter of her child, Caylee Anthony. Judge Belvin Perry denied Anthonys defense attorneys motions to suppress statements made by Anthony to George, Cindy, and Lee Anthony, pen pal Robyn Adams and corrections officer Sylvia Hernandez. The judge also denied the defenses motion to suppress statements Anthony made to law enforcement because she had not been read her Miranda Rights. The judge agreed with prosecutors that at the time of the statements, Anthony was not a suspect. Although the defense motions to suppress evidence were denied, Anthony was found not guilty. However, had she been found guilty, the denial to suppress evidence could have been used in the appeals process to reverse the conviction. Other Examples of Pre-Trial Motions To challenge the search warrant issued in the case.To exclude some evidence gathered during the search.To exclude statements made by the defendant to investigators.To determine if expert witnesses can testify.To challenge expert testimony.To request a gag order in the case.

Legalizing Torture to Collect Information essays

Legalizing Torture to Collect Information essays The issue of torture is a rising and very debatable topic in the government and the American publics eyes. The authors Jonathan Alter and Henry Porter have different takes on the topic of how torture should be legal or why torture is against the law today in the articles: Time To Think About Torture, posted in Newsweek Magazine and Now The Talk is About Bringing Back Torture, posted in The Guardian. In comparing and contrasting these two articles in which the first focused solely on how torture could be useful and helpful for the government, and the second article focuses on the effects of the medias support of torture, also the negative effects of torture. The meaning of torture is an act committed by a person acting under the color of law specifically intended to inflict severe physical or mental pain or suffering upon another person within their custody or physical control. There are laws in the U.S. against torture, the law states Whoever outside the United States commits or attempts to commit torture shall be fined under this title or imprisoned no more than 20 years, or both, and if death results to any person from conduct prohibited by this subsection, shall be punished by death or imprisonment for life (1). In 2005 Senator John McCain who himself was a prisoner of war in Vietnam proposed an amendment that would outlaw the process of torture for U.S. held detainees. The vote passed ninety to one but faced veto by the White House over objections that the bill might hinder the CIAs ability to gather intel from detainees. In October 2006 the U.S. enacted the Military Commissions Act of 2006, authorizing the executive to conduct military tribunals of so-called enemy combatants and to detain them under the terms of habeas corpus. Both authors refer to torture that pertains the government. Alter states that one sign of how much things have changed is ...

Childrens Attachment Styles Essay Example | Topics and Well Written Essays - 1250 words

Childrens Attachment Styles - Essay Example According to Van Wagner (n.d.), "attachment is a special emotional relationship that involves an exchange of comfort, care, and pleasure". Attachment, which has branched out to many researches and studies have originated from John Bowlby's theory of attachment. That is, it is in human's nature to have the tendency to make strong emotional bonds and connections to particular individuals. Attachment styles that are attained in childhood can have a probable effect on how a child grows into adulthood. Through this theory, there is a better understanding of child development. Kassin (2004) defines styles of attachments as the secure and insecure attachment. These types of attachments were recognized after the "Strange Situation" test done on parents and their infants to test their reactions after a "separation and reunion" procedure. An infant with a secure attachment is secure when the parent is present. Although distressed by separation, there is no significant trouble when this happens. Upon reuniting with parents after separation, a securely attached child welcomes the parent positively. The insecure styles ... Though distressed if separated from parent or caregiver, the infant seems to feel no relief in the parent's return and may show hostility toward the parent. For the avoidant-insecure attached child, they tend to avoid parents. While they do not reject attention from parents, they also do not seek comfort from parents whenever scared or frightened. The avoidant-insecure attached child seems to have no preference between a stranger and the parent. On the other hand, the disorganized-insecure attached child seems to have a mixed reaction to their parents or caregiver that includes avoidance and resistance. Here, the child appears to show a hesitant or unsure behavior towards the parent or caregiver. After separation, the child probably might seek contact with the parent but will resist the comfort given by the parent. The child's confusing behavior could be caused by a parent being both a fear and reassurance figure to a child. While children do develop styles of attachment at infancy, there are a great many possibilities in how he behaves at adulthood. Ainsworth (1989) stresses in her research that "one must be alert on the fact that key changes in the nature of attachment may be occasioned by hormonal, neurophysiological, and cognitive changes and not merely by socioemotional experience" Here, Ainsworth extended the attachment theory throughout the life cycle to consider the developmental changes in children's attachment style towards parents or surrogate figures and other affectional bonds that he may develop towards others later in life. In another research by Bartholomew and Horowitz (1991), they proposed a new 4-group model of attachment styles at adulthood. Through

An Investigation of Customers on Branding - A Case Study of Samsung Essay

An Investigation of Customers on Branding - A Case Study of Samsung - Essay Example Suppliers and retailers alike should be able to let their consumers notice their products and services, and correspondingly develop their interest in these offerings (Zielke and Dobbelstein 2007). Trying the product is critical towards the path to satisfaction and for developing their preference of the brand; the latter develops loyalty behaviour towards the company and their goods. Given this process, the first trial of a brand plays a particularly critical part. From an organisation’s point of view, knowledge and understanding of the factors that determine the willingness of customers to purchase a particular brand is necessary for product or service development (Zielke and Dobbelstein 2007). Majority of the research about brands have focused on understanding the influences of brand awareness and image (Keller 1993). Other studies have delved into the ways with which customer experiences can be developed (Berry 2000; Vargo and Lusch 2004). Knowing one’s consumer is a primary principle of brand management and marketing. Consumers, however, are not fixed targets owing to the fact that they often change their needs and preferences(Zielke and Dobbelstein 2007). Moreover, existing customers of a brand likewise change their habits on purchasing and consumption. In addition, new customers come into the market with their personal needs, preferences and characteristics (Corstjens and Lal 2000). Given all these, this era has taken a more customer-oriented approach to commerce, implying that changes on customer attitudes towards brands are to be expected. The ways with which brands are developed and managed shall correspondingly change in the coming years (Zielke and Dobbelstein 2007). Customer-centric commerce alter the transactions between companies and individuals, resulting in a relationship that is mutually beneficial to both parties. Since it is necessary that companies be able to identify the needs and preferences of customers to develop and customize their brands in a way that will provide satisfactory experiences among consumers.

Categorical definition arguement writing about heros Essay

Categorical definition arguement writing about heros - Essay Example His personality used to be exalted. In mythology or in the great epic of the world Ramayana, the hero is Ram. Ram is shown as an obedient, selfless, and the most valiant person of the world. But in the modern time the concept of hero has changed. The hero is supposed to be the person who has glamour due to his qualities. The modern heroes can be of different field such as the hero in sport, cinema, or politics. The hero in modern term is the person who has his influence on the people and he is an idol for them. The influence of the hero could go even to that height where the ordinary people start thinking him as a divine figure and they worship him. In India, especially in South India the people are so crazy about films and the heroes of the film that they have built the temples of these heroes. It is the different thing whether these people deserve worship or not, but the major point here to be considered is that the height of influence of the hero can go at any stage. It is always the quality of the hero to battle hard and reach to the pinnacle of success by overcoming all odds. These heroes have tremendous power and strength. There are different types of heroes; among them are seeker, victim hero, anti-hero, tragic hero, epic hero, culture hero, folk hero and reluctant hero. A Hero is a man who ardently devotes his life to the divine and inner truth and shares his vision with the rest of the world. For Carlyle, this is the definition of a true man: one who is a deep and spiritual being, living his life by divine truths. Carlyle in his book â€Å"On Heroes, hero-worship and the heroic in history,† he talks about the following different categories of the heroes† â€Å"All sorts of Heroes are intrinsically of the same material; that given a great soul, open to the Divine Significance of Life, then there is given a man fit to speak of this, to sing of this, to fight and work for this, in a great, victorious, enduring manner; there is