Monday, April 6, 2020
762000-219075 Essays - Foreign Relations, International Relations
762000-219075 Essay nuclear weapons have made the world a more dangerous place GROUP10 Hamad saeed AL shamsi (BSBAW - 171023) Hamad hadef Al shamsi (BSBAW - 171024 ) Khalifa ibrahim alhamadi (BSBAW - 171014 ) Does the spread of nuclear weapons make the world safer or more dangerous? Most people usually have an instinctive reply to this question: Of course, it makes things more dangerous. How could it not? It might seem surprising, therefore, that not all nuclear analysts agree, and the debate remains unresolved. Like so many of the issues relating to nuclear weapons, the debate is built largely on speculation and ambiguous historical experience. Nuclear weapons remain attractive to insecure or ambitious states. In regional rivalries such as the subcontinent, East Asia, and the Middle East, the bomb still has influence. Whatever else one has to say - and presumably not much has been left unsaid about the nuclear strategy of the past six decades - nuclear status still imparts extraordinary prestige and power. The nine current members of the nuclear weapon club still possess about 27,000 operational nuclear weapons of various types between them. At least another 15 countries have on hand enough highly enriched uranium for a nuclear weapon. Since 1945, many influential voices have expressed alarm that the spread of nuclear weapons will inevitably lead to world destruction. So far, that prediction has not been proved right. But is that because of effective efforts to stop the spread of nuclear weapons, or, to borrow a phrase from former Secretary of State Dean Acheson, after the Cuban Missile Crisis, just plain dumb luck'? Nuclear proliferation remains urgent not just because of the risk of a terrorist organization getting its hands on nuclear weapons, but because the proliferation of weapons necessarily means a proliferation of nuclear deterrents. Nuclear weapons have long been a force multiplier, able to make up for imbalances in conventional military power. Paradoxically, then, the unassailable lead of the United States in military power and technology might actually invite other nations to acquire the bomb as a way to influence or even deter American foreign policy initiatives. The lesson of the first Gulf War, one Indian general was reported as saying, is that you do not go to war with the United States without the bomb, the 2003 invasion of Iraq serving as yet another glossy advertisement of the protective power of a nuclear arsenal. This is not a new development. It is, in fact, a lesson American policymakers have been concerned about for some time, and one for which no easy solution seems likely. Bill Clinton's Secretary of Defense, Les Aspin, outlined the problem in December 1993: During the Cold War, our principal adversary had conventional forces in Europe that were numerically superior. For us, nuclear weapons were the equalizer. The threat to use them was present and was used to compensate for our smaller numbers of conventional forces. Today, nuclear weapons can still be the equalizer against superior conventional forces. But today it is the United States that has unmatched conventional military power, and it is our potential adversaries who may attain nuclear weapons. Accordingly, Aspin concluded, the United States could wind up being the equalized. To take an earlier example, John F. Kennedy acknowledged in the wake of the Cuban Missile Crisis that even a small number of nuclear weapons could deter even the most powerful states. A central element of the proliferation debate revolves around the perceived effectiveness of nuclear deterrence. If deterrence works reliably, as optimists argue, then there is presumably less to be feared in the spread of nuclear weapons. But if nuclear deterrence does not work reliably, pessimists maintain, more nuclear weapons states will presumably lead not just to a more complicated international arena but a far more dangerous one. Some analysts have made a compelling case that the fear of nuclear proliferation, or the spread of nuclear weapons, has been exaggerated. Some go even further and argue that proliferation may actually increase global stability. It is an argument peculiar to nuclear weaponry, as it does not apply and is not made with regard to other so-called weapons of mass destruction such as chemical and biological weapons. Nuclear weapons are simply so destructive, this
Sunday, March 8, 2020
Attachment Theory
Attachment Theory Introduction This paper reports on the attachment theory and how life experience affects oneââ¬â¢s emotional attachment to others. Attachment theory advanced by John Bowlby in the early 1950s, seeks to explain how early life relations affects an individualââ¬â¢s emotional bonding in future Hutchison (89). Advertising We will write a custom essay sample on Attachment Theory specifically for you for only $16.05 $11/page Learn More The theory gives an understanding of the different personalities as relates to emotional relationships. The theory was first focused on the relationship between children and their parents, but was later expanded to look at the whole lifespan. The theory looks at ones attachment as being influenced by both psychological conditions and the social environment. The Attachment Theory and Life Experiences According to the proponents of the attachment theory, children develop a bond with their caregivers, which grow into an emotional bond. Further research on the theory indicates that life experiences in childhood direct the course of oneââ¬â¢s personality as well as the social and emotional development throughout his or her life. Besides the explanation advanced by the theory regarding the connection between a baby and its mother or a care giver, the theory also seeks to explain the attachment between adults Hutchison (43). Among adults, an emotional attachment is felt more especially during bereavement or separation of spouses. Babies are born without the ability to move or feed themselves. They depend on care givers to for these needs; they however have pre-programmed set of behavior that comes into action due to the environmental stimuli. Environmental stimuli may trigger a sense of fear or distress in the baby making it cry for help from the mother or the care giver. The protection or comfort offered to the baby makes it develop a stronger emotional bond with the mother and others who are closer to it. Children grow to relate comfort from distress to the people who are close to them during their early stages of development. The nature of the environment a child grows in, together with the ââ¬Å"psychological framework builds up a childââ¬â¢s internal working modelâ⬠Hutchison (52). The internal working model comprises of the development of expectations that an individual perceives in social interactions. The theory explains the effect of challenging parenting such as; neglect or abuse. Parents and caregivers should endeavor to develop an environment that makes children feel secure and comfortable. Advertising Looking for essay on psychology? Let's see if we can help you! Get your first paper with 15% OFF Learn More The type of relationship parents establish with their children at their early stages of development determines the type of emotional attachment a child develops with them. A child who grows up in a loving and sensitive environment deve lops secure relationships in with others. Such a child grows to recognize others as being caring, loving and reliable. They also develop high self esteem and learn to deal with negative feelings. Research indicates that people who grow up in secure attachment relationships are able to demonstrate good social aptitude throughout their life. On the contrary, children brought up in unsecure environment develop an avoidant attachment. An unsecure environment to children is often characterized by fear, anxiety and rejection. This type of environment makes a child make children to downplay their emotional feelings. There is a group of children who grow up with care givers that are not consistent in responding to their emotional needs. Their care givers are sometimes sensitive, and sometimes insensitive to their feelings. Such children develop ââ¬Å"an attachment seeking habit as they try to conquer the insensitivity of their caregiversâ⬠Hutchison (34). This sort of behavior by c hildren is referred to as ambivalent attachment, where the children seek to compensate for the inconsistent responsiveness by the caregiver. Such a child tries to manage other peopleââ¬â¢s attention through behavior sets such as; seduction, bullying rage and necessity. Hutchison, Elizabeth. Dimensions of human behavior: The changing life course. 4th Ed. Thousand oaks, CA: Sage publications, 2011. Print
Friday, February 21, 2020
The Problem of Consumer Skepticism Case Study Example | Topics and Well Written Essays - 500 words
The Problem of Consumer Skepticism - Case Study Example However, there are many factors inhibiting development towards greener practices. One might think that any effort made by a company to be eco friendly is well received by those who are concerned about the environment. For example, Coca Colaââ¬â¢s effort towards greener practices has been faced by numerous setbacks. The bottles are still made of plastic and even though it is recyclable most consumers through them away leading to environmental pollution. Secondly, the green idea is no exception as it has been faced by a huge controversy inhibiting its progress. Although, the idea would have positive impacts on the environment, such as reducing rainwater runoff by 38 percent and minimize heat island impact by 26 percent, there are those who are against the idea. Critics state that the new by law behind the idea of green rooftops may dampen the efforts of the green movement, as it will limit developersââ¬â¢ options in constructing, as they will be concerned towards making the building eco-friendly thus increase the building costs. Consumer attitudes towards eco-friendly products limit greener practices since most of them are skeptical about paying a high price for these products.
Wednesday, February 5, 2020
Business Environment Essay Example | Topics and Well Written Essays - 1750 words - 1
Business Environment - Essay Example The countryââ¬â¢s decision regarding the resource allocation represents the economic systems that it practices. Normal economic systems range from market economy to command economy. In a planned or command economy, all the decisions are performed by the government. The role played by the government in such economy is related to the economic decisions, which it formulates by taking advices of the top hierarchical bodies. After the decisions have been finalised, they are enforced upon the bodies presented below the hierarchical level. The production process of any country is usually planned, coordinated and organised by the government. A planned economy involves an intensive deal of strategic planning. It has been further observed that governmental planning of allocation of resources is generally organised in such a manner which facilitates to satisfy the requirements of all the citizens dwelling within a country. The greatest advantage of resource allocation under the vigilance of government is equal distribution of wealth (Palacios & Harischandr, 2008). Free market economy refers to the economic system, wherein decisions are farmed by considering the market mechanism. Demand and supply results frame the vital element of the decisions pertaining to resources allocation. Within the free economy, the government does not interfere in any decision-making process. The advantage of resource allocation in free economy is that the goods are sent to that particular area, where it is in demand. Furthermore, in such economy there exists no requirement for any overriding body to interfere in the decision process (Palacios & Harischandr, 2008). Mixed economy incorporates the characteristics of both the economies discussed above. In such economy, a few of the goods and services are produced by the free-market sector, whereas the other products and services are produced by the government. The balance that exists between the governmentââ¬â¢s provision and the market econo my provision is equal. Government plays a vital role in the development of mixed economy. Initiatives taken by the government to perk up the industrial development can facilitate to ensure benefit for the dwellers in the economy at large. Moreover, the other crucial benefits of a mixed economy entail the facet of lesser inequality related to the earned income, balanced growth of regions and freedom of possessing private property among others (Palacios & Harischandr, 2008). 2. Assess The Impact Of Higher Taxes On Employees (An Instrument Of Fiscal Policy) And Higher Interest Rate (An Instrument Of Monetary Policy) On The Costs Of Borrowing Of A Business Rise in the taxation rate lays a greater impact on the employees. When tax is charged on a product, it usually increases the rate of it. This excess rate of the product that includes the economic cost is the ââ¬Ëexcess burdenââ¬â¢ of the tax. It has been further ascertained that higher rate of taxation usually decreases the grow th along with investment pattern of an individual. Taxes usually disrupt the individualsââ¬â¢
Tuesday, January 28, 2020
History Of Brakes And Principles Of Hydraulics Engineering Essay
History Of Brakes And Principles Of Hydraulics Engineering Essay Landing gears are one of the most important parts of the aircraft and play an important role because it can make the aircraft run through runways and lands the aircraft to safety with the aid of the braking system and other systems. The modern brake system has been refined for over 100 years and has become extremely dependable and efficient. The whole draft talks about the hydraulic brake system. Modern braking systems are complicated and understanding the operation of a braking system requires specialized skills and training. Brakes are the most important feature of any modern transportation these days. The principles of brakes in a landing gear of the aircraft gave us the idea that making a simple hydraulic break system would be our main project. The content is designed to show the insight of the principles of operation of the hydraulic break, components and its functions. The advantages and disadvantages against different types of brakes and other terminology. :History oF Brakes: All cars need a brake system; therefore it has been present in the automobile since its invention. However, the technology of the components and the design of the brake system have evolved throughout the years. In the early days of the automobile, drum brakes were the standard. Drum brakes offered several advantages over other types of brakes. One of these was that the drum could keep out water and dust, materials that could damage disc brakes which were out in the open. The other, more important advantage was that drum brakes required drivers to apply less pressure on the pedal as compared to disc brakes. This was especially important in the days before hydraulic and power brake systems, both of which decreased the amount of pedal pressure needed. The next major advancement in brake technology came in 1918 with the invention of four-wheel hydraulic brake systems by Malcolm Loughead. It is interesting to note that Loughead was a member of the Lockheed family, a company known better for producing airplanes. The hydraulic brake system replaced the mechanical brake system that was in use at this time. The mechanical system had numerous disadvantages. It made it difficult to brake all the wheels evenly, often causing a loss of control. In addition, it required drivers to exert tremendous amounts of force on the brake pedal to slow the car. The hydraulic brake system multiplied the force that was applied to the brake, lessening the amount of force needed to be applied to the brake pedal by the driver. This system was first used in the 1918 Duesenberg. Its advantages quickly caught on and by 1929, four wheel hydraulic braking systems were standard equipment on most higher priced cars. It took a few more years for the feature to becom e common on lower price cars. As the speed of automobiles and their weight increased, better braking systems were required. The main problem with drum brakes is that the heat is not efficiently disbursed. The heat that is produced inside the drum does not escape easily since the drum prevents wind from drawing it away. However, disc brakes were open to the passing wind. This allowed the heat to be carried away which increased the efficiency of the brake. It is interesting to note that disc brakes were first used in 1902. However, their use was limited up until the 1950s since their efficiency was not required and they required more pedal pressure to operate. The reason for the higher pedal pressure is that disc brakes have no self-servo effect or no self-energizing capacity that the drum brakes have. The self-servo effect is caused by the forward motion of the car. This forward motion helps pull the brake shoe into contact with the drum. This helped lower the required pedal pressure. Now that their efficiency was needed and the hydraulic brake system multiplied the force applied to the brake pedal, disc brakes seemed to be the better alternative. Chrysler was the first to widely introduce the disc brake in its cars in the early 1950s. The system did not have much success. It seemed that the brake pressure required of the driver was still a little to great for the system to gain widespread consumer acceptance and therefore it was dropped. It finally took the failing automaker Studebaker to reintroduce the system in 1964. This time it saw much more success and in a few years, disc brakes were common on most new cars. One of the reasons that disc brakes were a success with the Studebaker and not the Chrysler was due to the development of the power braking system. Power brakes became common in the 1950s, after Chrysler had developed and dropped its disc brake program. The system assisted the movement of the piston in the master cylinder which meant that the driver needed to apply less peddle pressure to get the same braking effectiveness. Therefore, since ease of braking was no longer an issue, the adoption of the more efficient disc brake became widespread. Another development in braking systems came with anti-lock or anti-skid braking. With conventional braking systems, when the brakes are applied with enough pressure, the wheels will lock up. This results in a loss of steering effectiveness which may cause a loss of control. With anti-lock braking, the wheels do not lock up, allowing the driver to continue steering. Anti-lock brakes are not a new technology. They had been used in large aircraft since the 1950s and the British had used them in race cars in the 1960s. The first automaker to use this technology in its cars was Ford in 1969. It placed anti-lock brakes in the luxury Thunderbird and Continental Mark III. Today, anti-lock brakes are common on many new cars. : Basic Principles of Hydraulics: What is pressure? Pressure can be defined as the force per unit area and is expressed in Newtons per square millimeter (N/mmà ²) or in bars and pounds per square inch (lbs/inà ²) or p.s.i. in U.S. pressure. Formula: P = F / A Where: P = Pressure; F = Force; A = Area What is hydraulics? Liquids or fluids which are under pressure are usually used to transmit power through pipelines. The fluid power is converted into mechanical power by using rotary or linear actuators. What is Pascals Law? Pascals Law comprises a set of principles formulated in 1648 and states that pressure applied to a confined fluid at any point is transmitted undiminished throughout the fluid in all directions and acts upon every part f the confining vessel at right angles to its interior surfaces and equally upon equal areas. It defines the fundamental principle of power transmission by a hydraulic system. Figure 2: Pascals Law Pressure is created only when: The system is closed There is no air trapped in the system An attempt is made to compress the fluid Another important relationship in hydraulics is the area of the piston, the distance it moves, and the volume of fluid displaced. Formula: Volume =Area * Distance Fluid Compressibility: All liquids have a very high resistance to compression while air has a very low resistance to compression. Liquids used in hydraulic systems are also known as hydraulic fluids. Figure 3: Hydraulic fluid Bramahs Press: States that under a given load, the smaller the area it acts upon the greater the pressure produced and the greater the area under pressure, the greater the force available. Pressure = Load / Area Figure 4: Bramahs Press In an aircraft hydraulic system, Bramahs principle can be applied to the movement of different loads using actuators subject to one pressure. The figure above shows a large load and a small load being pushed by actuators having different piston areas. Bernoullis Principle : The relationship between the velocity and pressure exerted by a moving liquid is described by the Bernoullis principle: as the velocity of a fluid increases, the pressure exerted by that fluid decreases and as fluid decreases, pressure is increased. Figure 5: Bernoullis Principle Figure 6: Bernoullis principle also allows wings to produce lift Hydraulic Fluids: Hydraulic system fluid or liquids are used to transmit and to distribute the fluid to various units to be actuated. They are able to do this because they are almost compressible. If a number of passages exist in a system, pressure can be distributed to all of system by means of the liquid. Manufacturers of hydraulic devices usually specify the type of liquid best suited for use with their equipment, during working conditions, the service required, temperatures expected inside and outside the systems, pressures the liquid may withstand, the possibilities of corrosion, and other conditions. Figure 7: Types of hydraulic fluid Figure 8: Hydraulic Fluid (Aeroshell brand) Properties of Fluid: Fluids are incompressible They have a reasonable density with very little variation changes in temperature. Low rate of change of viscosity with temperature changes Large working range of temperature (-80à °C to +70à °C) Good Lubricating Properties It isnt harmful when in in contact (skin, hands) It doesnt foam Chemically stable with changes in temperature Good storage life Doesnt attack nor damage rubber. Fluid is preferably non-flammable Efficiency: Friction between the fluid and the walls of the pipes depends upon: The velocity of the fluid of the pipelines The bore, length and internal finish of the pipelines The number of bends in the pipelines and the radii of the bends The viscosity of the fluid What is Viscosity? It is one of the properties of hydraulic fluid. Viscosity is internal resistance to flow. Viscosity increases with a decrease in temperature. The knowledge of viscosity is needed for proper design of required temperatures for storage, pumping or injection of fluids. There are two related measures of fluid viscosity known as dynamic (or absolute) and kinematic viscosity. Types of Hydraulic Fluid: 1 Vegetable Based: (MIL-H-7644) is composed of a caster oil and alcohol. It is dyed blue. They are mostly used in older type aircraft. Natural rubber seal are used with vegetable base hydraulic fluid. This type is flammable. And the system may be cleaned with the use of alcohol. Figure 9: Vegetable based fluid 2 Mineral Base: (MIL-H-5606) it is processed from petroleum. It has an odour similar to penetrating oil and is dyed red. Synthetic rubber seals are used with petroleum base fluids. This type of fluid is flammable. They are used in common aircrafts and the precaution is damaging to rubber tyres. Figure 10: Mineral base fluid 3 Synthetic Base: (MIL-H-8446) This is one of the most commonly used fluid of this type. This fluid is of a clear purple colour or either dyed green. They are fire resistant. The seal material used is synthetic butyl Teflon and the precaution is of damaging to surface finishes. Figure 11: Synthetic base fluid These three types of fluids cannot be mixed nor any of them are compatible with each other.
Monday, January 20, 2020
Coffee Industry in the UK Essay -- Business Marketing Essays
Coffee Industry in the UK The coffee industry has grown rapidly since the 1990s; before Starbucks emerged, people were used to drinking low quality coffee from tins. Starbucks introduced fresh coffee made from top quality beans that have excellent taste and drinks such as the caffe latte and cappuccino, which have helped to fuel the development of the coffee market into a multi million pound industry. The size of UK branded coffee chains have quadrupled from 1999 to 2004, with a current market turnover of over à £1 billion. 2 Market Forecasts The coffee market is forecast for continued growth and expansion, without threat of saturation in the near future. In 2004 the coffee market was estimated at having around 2,299 outlet units and it 2006 it is predicted that the number of units will have increased to an estimated 2,965, with the growth of the branded coffee sector predicted to increase by 11% between 2004 and 2006. Indeed, branded chain outlets have accounted for most of the coffee market growth according to forecasts by industry analysts Allegra Strategies. Allegra claims that although there are more independents than branded coffee chains, in 2005 and 2006 it is expected that more branded than independent chains will be opening. Indeed, some independents. such as Bewleyââ¬â¢s in London, have had to close down. 3 Macro - environment analysis of the market Social The coffee market must adapt to a change in consumer attitudes or else it may be threatened by health and lifestyle issues. In 2003 the hot drinks market declined by an estimated 2.3%. Consumers, especially young people, are becoming more health conscious which makes coffee a less attractive choice; the increasing number of alternatives available such as health and energy drinks are becoming competitors in the coffee industry. Research carried out by Mintel shows that there is an increased diversification of tea, with a trend towards premium and herbal teas. The coffee industry are responded to this change in attitude by provision of de-caf drinks, options such as soy milk, and alternative drinks such as freshly squeezed fruit juices, chai lattes and herbal teas. People are now working harder than ever before but have more leisure time; they now use coffee shops to socialise. Allegra research claims that dwelling time in coffee shops has increased; 44.9% of consumers stay... ...au then tic cost a coffee e www.dandad.org/inspiration/ creativityworks/pdf/authentic.pdf UK coffee shop market statistics 14 Mar 2005, Caterer & Hotelkeeper magazine, http://www.caterer-online.com/archive/articledetail.asp?articleID=57531 Nestle Caterer & Hotelkeeper magazine, http://www.caterer-online.com/archive/articledetail.asp?articleID=50580 Branded coffee bars are squeezing independents http://www.thehospitalitysite.com.au/article/44/OcO2db44.asp 2005 Allegra Strategies Ltd. No.1 Northumberland Av, Trafalgar Square. London, http://www.allegra.co.uk/project-cafe5-keyfindings.html Oxfam to open coffee shops BB News May 2004 Http://news.bbc.co.uk/1/hi/magazine/3708585.stm Starbuckââ¬â¢s success - More than just coffee ICFAI University Press http://www.icfaipress.org/304/AN-Starbuckway_72.asp The Coffee Market ââ¬ËA Background Studyââ¬â¢ Oxfam International Commodity Research http://www.maketradefair.com/en/assets/english/BackgroundStudyCoffeeMarket.pdf . The State of Sustainable Coffee Executive Summary http://www.ico.org/libser/executive%20summary.pdf . Whitbread Briefing Book 2005 Volume 1 http://www.whitbread.co.uk/docs/Briefing_Book_2005_voll.pdf
Saturday, January 11, 2020
Why plastic bags should be banned
They use up natural resourcesââ¬âââ¬Å"Every time we use a new plastic bag they go and get more petroleum from the Middle East and bring it over in tankers,â⬠. ââ¬Å"We are extracting and destroying the Earth to use a plastic bag for 10 minutes.â⬠. They harm wildlife and marine life-plastic bags are now in all places in our environment, and animals, on land and water, are getting choked, strangled and killed by them. They create litter-Aside from polluting beaches and waterways, plastic bags for example in China plastic bags are blowing around streets of China, they are so common they've earned the name ââ¬Å"white pollution.â⬠It is not environmentally friendly and may cause harm to children and water life all around the world. It should also be banned for a list of reasons such as it is unfriendly to the environment and may be harmful to children and water life all around the world and also it takes years for plastic bags to break down and we're not even able to recycle them. No, because plastic doesn't break as easily as glass and is water-proof. They take a long time to biodegrade-Most plastic bags used either end up as litter or in landfills. Plastic bags pose a suffocation hazard to people, particularly children, and pets. Plastic bags are made out of non-biodegradable substances. They are durable they do not rot. Making plastic bags can lead to exhaustion of oil, because to make a lot of plastic bags, we need a lot of oil. If we reduce oil we could save much more oil. Plastic bags even kill a lot of marine animals. Plastic bags gets blown into the ocean and floats around like a jelly-fish. A lot of sea-creatures choke and die for mistaking them as their food.
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