Laws Against Gun Laws - 835 Words

Firearms have made a large impact on our society. When people think of America they think of gun toting men and women who fought for their freedom. Firearms are a very integral part of how America came to be and to how America fought to get where we are today. Many see firearms as weapons used only for killing and harm so strict laws have been put in place. These laws are only affecting law abiding citizens. I strongly believe that gun laws do not deter crime, but rather gun ownership does. In inner cities where gun laws are the most rigid, firearm related crimes are the highest. These are some of the reasons why I think more rigorous gun laws do not reduce gun related crimes. Laws that are enacted only affect citizens who will†¦show more content†¦In places like Switzerland, where every male is required to join the military where they get trained to use them properly and are highly encouraged to own their own personal firearms the crime rate is some of the lowest in the wo rld. There are studies that show how very few crimes are actually stopped by the use of firearms and that is partly due to the fact that criminals want an easy target. Someone with a firearm and knows how to use it is definitely not an easy target. That is why I think gun ownership by law abiding citizens does a better job at limiting gun related crimes than gun laws. Some of the states that have the most stringent gun laws also have an extremely high gun related crime rate. Detroit has an extremely high gun related crime rate; in fact, it is second in the country. This like other major cities such as washington D.C. have an extremely high gun related crime rates. Places in the world like Switzerland, where every male is required to join the military for four years and is not required to, but encouraged to own a firearm, have some of the lowest gun related crime rates in the world. Criminals actually prefer the most strict gun laws because they are going to break the law anyways so it will only make what they are going to do easier and safer because no one can protectShow MoreRelatedThe Issue Of Gun Control1058 Words   |  5 Pagesacross the United States currently than that of gun control. Advocates on either side of the issue are quick to voraciously fight for what they believe, as well as to tear down anyone who sees the issue differently. But unlike other issues, it seems that gun control advocacy does not rest on a spectrum; either you are pro-gun control or you are against it, and anyone caught in the middle is likely to get flak from both sides. But why is the issue of gun control such a hot topic? And why is it thatRead MoreArmed and Prepared: An Age of Defense Essay995 Words   |  4 Pagesof preparation, staff training, or school-wide drills can prepare the university for something so terrible. This tragedy will forever change the way students and teachers operate the school. One man. One gun. And the sad part is that all of this can all be averted. For this reason, the law should consent to â€Å"licensed concealed carry† (carrying a weapon with a license) on campus. If students were allowed to defend themselves with their own weapons, they would. Teachers and students should beRead MoreThe Recent State Legislation And The Rulings In Courts,1297 Words   |  6 Pagescampuses, with Texas being one. The question exists, am I for or against campus carry? Due to the experiences of my previous military career, as a former marine, I understand some may think my views are myopic because of that part of my life. However, I will also focus on past and recent active shooter incidents that initiated the argument on methods for future prevention. In addition to exploring the counter argument against campus carry, I will also present my rebuttal of those arguments. InRead MoreAccording To A Violence Policy Center Analysis Of News1332 Words   |  6 PagesAccording to a Violence Policy Center analysis of news reports, concealed carry permit holders have killed at least 11 law enforcement officers and 319 private citizens since May 2007, 19 of these were mass shootings, and 27 murder-suicides. I personally believe that individuals in America without a criminal record should not be able to carry a concealed weapon in public settings. Carrying a concealed weapon in public setting s is automatically imposing a threat on those around you. It increasesRead MoreConcealed Handguns Should Be Carried Anywhere On All Texas Public Universities2488 Words   |  10 Pagesconcealed handguns are now allowed to be carried anywhere on all Texas public universities. This shocking dispensation, from earlier prohibiting regulations, is now enforced by the new law in the state of Texas. This law is known as S.B. 11 or Senate Bill 11. For those of you who don’t know how a bill becomes a law, it’s a long, crazy process. The fact that this bill made it through every step of it is an insane thought that questions, how? Let’s start by going through the basics of the procedureRead MoreConcealed Carry And College Campuses Essay1816 Words   |  8 PagesAnother commonly discussed issue is if concealed handguns actually do deter crime, and if they are capable of aiding in stopping a mass shooting spree? Or if guns on campus, carried by fellow classmates would make students as a whole feel more cautious or on the opposing hand make students feel more secure with guns carried on campus? If guns are allowed on campus, how will this affect a growing student’s ideology? These questions and many more are highly spoken of in our social media based generationRead MoreGuns : Students Now Armed On College Campuses1926 Words   |  8 PagesGuns: Students Now Armed on College Campuses On June 13, 2015, the state of Texas, state legislature passed Senate Bill 11 (S.B. 11). With the passage of S.B. 11 Texas joined seven other states (Colorado, Idaho, Kansas, Mississippi, Oregon, Utah, and Wisconsin) that allow or have provisions that allow for the carry of concealed weapons on public campuses (National Conference of State Legislature, 2015). For a majority of higher education history, both states and individual institutions have bannedRead MoreGun Control And The Second Amendment Essay1294 Words   |  6 PagesGuns, Guns, Guns. In today’s news Gun Control, has become a controversial topic. I have heard many people say that, â€Å"Guns don’t kill people, people kill people†. So, do we need gun control? People talk because they have mouths, they don’t know the extent about gun violence. About half of the country’s population is for / against gun control. Consistently, the media outlets are reporting shootings, that is accidental or intentional whichever way it is trending across the United States. Stronger gunRead MoreThe Issue Of Gun Control1420 Words   |  6 Pagesresult of gun violence. Millions more have been the victim of assaults, robberies, and other crimes involving a gun† (â€Å"FACT SHEET: New Executive Actions to Reduce Gun Violence and Make Our Communities Safer†). Gun Control is one of the main political issues that has been debated for years now; Guns have led to the mass increase of fatalities and deaths in the U.S. today, being a controversial issue for the past decade. From assassinations, to mass shootings, and homicides, every time guns and violenceRead MoreGun Control Essay692 Words   |  3 PagesGun Control [Name of the Writer] [Supervisor Name] [Subject] [Date] Gun Control Introduction Gun control has been a debatable issue for all times. This essay aims to put forward an argument against gun control. The essay asserts that prevalence of gun control should not be a part of the society. Society should be against gun control because people should be able to protect themselves, the crime rate would decrease, and people have the right to bear arms. Discussion The controversy regarding

Use Of Force And The Police Force Essay - 1785 Words

The Use of Police Force Police encounter different situations in their daily activities. The diverse nature of the circumstances implies that the members of the police also have to adopt different strategies of handling them. In some circumstances, the police have to use force as a way of addressing the situations. Unfortunately, when the police apply their own discretion in the use of force, the outcomes of this approach may end in fatalities or serious injuries. In recent times, diverse opinions have emerged in relation to the use of discretionary force. In some quarters, the use of discretionary force has been hailed as beneficial while in other case such as the 2008 Shooting of Tyler Cassidy, concerns have been applied concerning the appropriateness of the strategy. Against this backdrop, this essay examines whether the police use of force is a necessary component of the job and describes the benefits and limitations connected to the discretionary use of force by the police. A striking aspect that differentiates the profession of policing from other forms of professions entails the legal authority bestowed upon the police to use force should situations call for it (Greenfeld 2012). According to 2009 Victorian police data, the situations involving the use of force was encountered in every 2.5 hours and for every 49hours, there was a critical incident related to the use of force by police (Office of Police Integrity 2009). These statistics show that at some point, theShow MoreRelated Police Use of Force Essay1079 Words   |  5 PagesIn certain situations, the police may have to act quickly on their instincts. Sometimes, a situation is unpredictable and a decision needs to be made in a split second. The quick decision may to be to take a person down physically with the officer’s own hands, or to use deadly force, unfortunately. Anything can happen and the officer needs to be ready for every scenario. The different levels of force can be anywhere fr om just a police officer being present, to having to kill someone to prevent himRead MoreEssay on Police Use of Force1577 Words   |  7 PagesThe police forces in every community are deemed law enforcement officers and have to take necessary precautions in executing their job. Individuals that police officers encounter may at any time threaten the security of the officer or others. Police officers have to follow procedures that are necessary to maintain control of situations that can cause harm to others or property. The three topics that will be discussed in police use of force are; the explanation and background of use of force, limitationsRead MorePolice Officers Use Of Force2643 Words   |  11 Pages Police Officers use of force has been an big issue for many decades, But has now made its way to mainstream. From news to social media there s always a recent relevant story/ case on police officers use of force. In 2016 Baton Rouge man, Alton Sterling was killed do to Police officers use of excessive force. This sparked an outrage in the nation after Mr. Sterlings murder went viral through social media. The shooting led to protests in Baton Rouge and a request for a civil rights investigationRead MorePolice Use And Excessive Force1757 Words   |  8 PagesIn most cases the police is permitted to use any form of necessary force to suppress a suspected criminal with minimal consequences if they use excessive force (â€Å"Police Use Of Force†). According to the current law all law enforcement officers should use only the amount of force necessary to weaken an incident, make an arrest, and protect themselves and others from harm (â€Å"Police Use of Force†). Officers rece ive guidance from their individual agencies, but no universal set of rules that governs whenRead MoreUse Of Excessive Force By Police Essay2388 Words   |  10 Pages Use of excessive force by police Name Institutional affiliation Introduction This paper will discuss issues related to the use of excessive force by the police. In doing this the paper will look at the concepts such as the need for police officers to use force, the definition of excessive force and causes that contribute to the use of excessive force. The paper identifies inadequate training, adrenalin overload, accidental application and retribution as the major causesRead MorePolice Use of Force Essay2187 Words   |  9 PagesPolice Use of Force Introduction Police officers are authorized to use force under certain circumstances, for instance; controlling a disruptive, aggressive and disturbing demonstration, undergoing arrest of an accused person or controlling a combative individual. These officers are trained properly regarding use of force while fulfilling their duties. However, the use of force by police is a subject of hot discussion amongst public, as many times law enforcement agencies, televisions, newspapersRead MoreUse of Excessive Force by Police3642 Words   |  15 PagesUse of Excessive Force by Police Use of Excessive Force by Police Police officers are given a significant amount of discretion simply due to the nature of the job. Officers are faced with many threatening situations forcing them to react quickly, yet appropriately. They have the power to infringe upon any citizen’s rights to freedom and therefore they must use this power effectively. One major concern with the amount of discretion officers have is their power to decide when to use force orRead MoreUnderstanding Police Use Of Force1789 Words   |  8 PagesUnderstanding Police Use of Force Police Officer shoots unarmed teen to death. Police Officer shoots unarmed teen to death who is violently attacking an officer. Which one is a catchier headline? The first one may attract ratings or sell newspapers but it is not only unfair to the police, it is also unfair to the public being fed this type of information. For years, news outlets have been bad mouthing police and their tactics because it makes for good stories. This type of coverage is dangerousRead MoreThe Use Of Deadly Force By Police Officers3165 Words   |  13 Pages The Use of Deadly Force by Police Officers in the Field: Understanding the Complexities and Issues Surrounding Deadly Force Jessica Woodward Columbia College MSCJ 501 Current Issues and Future Directions in Criminal Justice Abstract In light of the recent spate of police-involved homicides of suspects who may or may not have put the lives of the police involved in fear for their safety and well-being, this paper seeks to examine the use of deadly force by police officers in the lineRead MorePolice Use Of Force Too Far1191 Words   |  5 PagesNow days i feel as if the police that the use of force too far. Studies show that over 45% of police use the use of force too far. The use of Force is there for the police to make them feel safe but in anyway you could see something the is misleading and lead to use of force in the wrong way. I think that someone needs to take a stand and say something about it because its getting out of hand with police at school and just police in the public. The way the police use force is only to keep them safe

President Candidates Free Essays

Michael Brandenburg F. Abraham Macroeconomics 23 October 2011 Six Republican Candidates Mitt Romney solution to our unemployment crises is to have people pay for unemployment insurance like the pay for heath or home insurance. Then the government can use their extra money to help create extra jobs. We will write a custom essay sample on President Candidates or any similar topic only for you Order Now One of the things that Newt Gingrich wants to do is lower the corporation tax to make the United States more desirable. This will help companies that moved to China to come back to the USA. Michele Bachmann believes that when you take the minimum wage off it will create more jobs. The competitive market will increase the minimum wage on its own while providing more jobs. Rick Perry claims that stimulus money should only be used occasionally not constantly. Another thing he plans on doing is cut taxes so companies can hire more employees. Ron Paul wants to strengthen the dollar value in such so the things we own and sell are worth more. Paul also informs us that when you decrease inflation it stabilizes the job market. Herman Cain says that people at or below the poverty line should not have to pay income tax. Also he agrees to get rid of minimum wage to promote competition between businesses. Works Cited http://www. sodahead. com/united-states/romney-workers-should-pay-their-own-unemployment-benefits/question-1388133/ http://www. lsureveille. com/bachmann-s-repeal-of-minimum-wage-will-not-fix-economy-1. 2604388 http://offthekuff. com/wp/? p=18061 http://www. nolanchart. com/article4214-ron-paul-could-fix-the-dollar. html http://www. dailykos. com/story/2011/10/21/1028782/-Herman-Cains-fix-to-his-9-9-9-plan:-create-opportunity-zones-of-corporatederegulation How to cite President Candidates, Papers

New Zealand free essay sample

Country study: geology, climate, flora fauna, native population social development, economics, politics. This document examines a research article relating to the New Zealand financial markets. The article in question is entitled Capital Market Development-New Zealand Case Study published in 2007. The purpose of the research article is to illustrate the importance of a smoothly operating capital market in a developing or developed nation such as New Zealand. The article being examined is a research document designed to develop a better understanding of capital markets. Specifically, the report was New Zealand free essay sample New Zealand. It was sort of my family’s new beginning. In fact, when I look back at it, it was my new beginning. An exciting new chapter in our lives full of opportunity and great experiences. I had never seen my parents so enthralled in an idea. They felt that leaving for New Zealand and leaving everyone behind was the best thing for us. Naturally, being the naive eleven year old that I was, I had a very different point of view. To me, moving was the end of all things. Truth be told I was a very shy kid back then and change was just detrimental to me. I had never moved before, I had never even given the concept thought and then there it was being thrust upon me. I was going to leave behind all of my friends, my house, my pet bird, everything I loved was being taken away. We will write a custom essay sample on New Zealand or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Who was to blame? My parents. I could have sworn I was on another planet. There were strange people with strange accents and lingo and I felt completely lost. Almost immediately I began to hide—from everything. I became even quieter than I was and I had a dark outlook on everything. In truth, I lost hope. Things spiraled downward from there. I specifically remember running out of the house after a fight with my mom screaming, â€Å"I hate you! I hate you!† I didn’t look back. What was I to do? I was forced to live in a horrible place, ripped away from everything I loved and I blamed everything and everyone for my situation. I have to be thankful though, because not long afterward I learned the greatest lesson of my life. I’m a strong believer in that people usually do not change until they have to. I know this from experience. I was at the breaking point and it was at that crucial moment I had to make a decision. I didn’t truly consciously make the decision it just happened. It was like a switch flipped in my brain and everything changed. One day, I woke up, and I was happy. Not only that, but I understood. I was the source of my problems and no one was to blame except myself. I finally had the knowledge that happiness was within me and that I could be my own person. The thing that shook me to the core most, that still reverberates through my soul, is that I can be whatever I want to be no matter what.

Behavior Goals for Individual Education Plans

Behavior Goals for Individual Education Plans Behavioral Goals may be placed in an IEP when it is accompanied by a Functional Behavioral Analysis (FBA) and Behavior Improvement Plan (BIP). An IEP that has behavioral goals should also have a behavioral section in the present levels, indicating that behavior is an educational need. If the behavior is one that could be handled by changing the environment or by establishing procedures, you need to attempt other interventions before you alter an IEP. With RTI (Response to Intervention) entering the area of behavior, your school may have a procedure for being sure that you attempt interventions before you add a behavioral goal to an IEP. Why Avoid Behavioral Goals? Behavioral goals will automatically withdraw a student from the progressive discipline plan in place in your school, as you have identified behavior as a part of the students disability.An IEP that has a BIP attached often labels a student when he or she is moved to another teacher, either to a new classroom or to a new schedule in middle school or high school.A BIP must be followed across all educational environments and can create new challenges not only to the teacher of record but also for specials, general education classroom teachers. It will not make you popular. It is best to attempt behavioral interventions such as learning contracts  before you move to a full FBA, BIP and behavioral goals.​ What Makes a Good Behavioral Goal? In order for a behavioral goal to legally be an appropriate part of an IEP, it should: Be stated in a positive manner. Describe the behavior you want to see, not the behavior you dont want. i.e.: Dont write: John wont hit or terrorize his classmates. Do Write: John will keep hands and feet to himself. Be measurable. Avoid subjective phrases like will be responsible, will make appropriate choices during lunch and recess, will act in a cooperative manner. (These last two were in my predecessors article on behavioral goals. PLEEZZ!) You should describe the topography of the behavior (what does it look like?) Examples: Tom will remain in his seat during instruction 80 percent of observed 5 minute intervals. or James will stand in line during class transitions with hands at his side, 6 out of 8 daily transitions. Should define the environments where the behavior is to be seen: In the classroom, Across all school environments, In specials, such as art and gym. A behavior goal should be easy for any teacher to understand and support, by knowing exactly what the behavior should look like as well as the behavior it replaces. Proviso We do not expect everyone to be quiet all the time. Many teachers who have a rule No talking in class usually do not enforce it. What they actually mean is No talking during instruction or directions. We are often not clear about when that is happening. Cueing systems, are invaluable to help students know when they can talk quietly and when they must remain in their seats and be silent. Examples of Common Behavior Challenges and Goals to Meet Them. Aggression: When John is angry he will throw a table, scream at the teacher, or hit other students. A Behavior Improvement Plan would include teaching John to identify when he needs to go to the cool down spot, self- calming strategies and social rewards for using his words when he is frustrated instead of expressing it physically. In his general education classroom, John will use a time out ticket to remove himself to the in class cool down spot, reducing aggression (throwing furniture, shouting profanities, hitting peers) to two episodes a week as recorded by his teacher in a frequency chart. Out of Seat Behavior: Shauna has difficulty spending much time in her seat. During instruction she will crawl around her classmates legs, get up and go to the classroom sink for a drink, she will rock her chair until she falls over, and she will throw her pencil or scissors so she needs to leave her seat. Her behavior is not a reflection only of her ADHD but also functions to get her the teacher and her peers attention. Her behavior plan will include social rewards such as being line leader for earning stars during instruction. The environment will be structured with visual cues which will make it clear when an instruction is happening, and breaks will be built into the schedule so Shauna can sit on the pilates ball or take a message to the office. During instruction, Shauna will remain in her seat for 80 percent of five minute intervals during 3 of 4 consecutive 90 minute data collection periods.

Landing on Mars †Science Essay

Landing on Mars – Science Essay Free Online Research Papers Landing on Mars Science Essay When we are on Mars, we are going to research on how we can build a colony on Mars and how we can survive there. We are looking for ways on how we can provide ourselves with oxygen, food and water, and how we can dispose of our garbage without going to Earth and getting the supply’s we need. We need to know if the ground is stable enough to build structures on, we have to know the temperature, the soil, and the terrain. Mars is known as the Roman god of war or the Red planet. The surface on Mars is very rocky and has a lot of craters that are 18 kilometers in diameter and even larger. The surface of Mars is almost the same as the Earths surface except that the rocks on Mars look pink and red. Mars has dust storms that cover the entire planet. The particles in the dust suspend in the planet’s thin atmosphere and give the sky a pinkish orange glow. The surface on Mars is the closest planet surface to Earth. The atmosphere is very thin and is saturated with Carbon dioxide gas. There are also canyons and volcanoes, but they are not active, the soil is very rich in iron oxide, and also has ice caps just like the Earth containing frozen carbon dioxide. Surface temperature varies from –128 C (-199 F) during polar night to 27 C (80 F) at equator during midday. The volcanoes and canyons on Mars are the largest and deepest canyons in the solar system. The volcano that is on Mars is called Olympus Mons. Because of the tilt of the planets axis, it also has different seasons just like the Earth. The sun appears about half the size on Mars as it does on Earth. Data from the Mars Global indicates that Mars’s crust is about 80 kilometers thick in the southern hemisphere but only about 35 kilometers in the north hemisphere. The southern hemisphere of Mars is predominantly ancient cratered highlands somewhat similar to the Moon. Most of the northern hemisphere consists of plains which are much younger, lower in elevation and have a much more complex history. Mars has a low density compared to the other terrestrial planets indicates that it’s core contains a large amount of sulfur, iron, and iron sulfide. Sulfide is a mineral compo und formed through the binding of sulfur and metal. Mars has a very thin atmosphere composed mostly of the tiny amount of remaining carbon dioxide (95.3%) plus nitrogen (2.7%), argon (1.6%) and traces of oxygen (0.15%) and water (0.03%). In our solar system, Mars is in between Earth and Jupiter. It is the fourth planet from the sun and is about 227.7 million kilometers away from it. It is the last of the inner planets and is the seventh largest planet in orbit, diameter, and mass. Mars is 72 million miles away from the Earth and it would take 2 Â ½ months to get there by spaceship. Research Papers on Landing on Mars - Science EssayAnalysis Of A Cosmetics AdvertisementCanaanite Influence on the Early Israelite ReligionThe Spring and Autumn19 Century Society: A Deeply Divided EraThe Masque of the Red Death Room meaningsAnalysis of Ebay Expanding into AsiaMind TravelMarketing of Lifeboy Soap A Unilever ProductThe Effects of Illegal ImmigrationDefinition of Export Quotas

Defense Weapons System (Abstract) Essay Example | Topics and Well Written Essays - 250 words

Defense Weapons System (Abstract) - Essay Example Early defense systems operated on a one-way identification mechanism, whereby the system classified approaching aircrafts as domestic or enemy. Presumably, the defense systems did not give additional information on the nature or degree of threat presented by an approaching aircraft. B-52 systems are likely to have remained relevant due to due to their flexibility. Their adaptability has facilitated key modifications aimed at enhancing the system’s monitoring capabilities. However, security experts are likely to be concerned with its capacity to detect modern aircrafts. In addition, experts are pessimistic about its identification mechanism and its flexibility in the current environment. In particular, will the system keep pace with the development of military hardware and aircrafts particularly the F series of fighter jets? Sustainability of the B-25 system will determine the United States’ potential as a military and political superpower of the modern

Trangenic Animals Essay Example | Topics and Well Written Essays - 1500 words

Trangenic Animals - Essay Example By transferring foreign DNA into animal cells, new genes can be inserted or functioning genes can be switched off. In some cases, new genes can be transmitted to the next generation. The precondition for the elimination or insertion of genes is that is possible to transfer into the cell recombinant DNA that integrates itself firmly into the DNA of the mammal. (EIBE, 1998) 2.2 Techniques for Transgenesis The most direct way of integrating a new gene into a cell is to inject a piece of DNA into the nucleus in the hope that it will become integrated into the genome> This technique is called microinjection. Microinjection is the most frequently used method of inserting a foreign gene into the genome of the mouse in order to develop a model for investigations into hereditary diseases. With each microinjection, 50-500 copies of the modified DNA fragments are inserted into the pre-nucleus. Until recently, pronuclear microinjection of deoxyribonucleic acid (DNA) was the standard method for producing transgenic animals. This technique is now being replaced by more efficient protocols based on somatic nuclear transfer that also permit targeted genetic modifications. Lentiviral vectors and small interfering ribonucleic acid technology are also becoming important tools for transgenesis.(Prosperi, 2000) 3. Transgenic Mice and Cancer 3.1 Underlying Principle What triggers cell to abandon their normal behavior and to divide out of control to produce a tumor Why do cancer cells move to other parts of the body to produce tumor there as well Is the change from a normal cell a consequence of genetic change, external factors, disturbance of the immune system or is cancer only a result of growing old The following questions may be answered by testing known... This report stresses that transgenesis is a radically new technology for altering the characteristics of the animals by directly changing the genetic material. Since DNA contains a universal genetic code for living organisms, it can in principle, be transferred between completely unrelated organisms to produce organisms with useful characteristics that would not be available. Many different genes have now been characterized. This knowledge opens up the possibility of looking for methods of changing genes in ways that are useful. By transferring foreign DNA into animal cells, new genes can be inserted or functioning genes can be switched off. In some cases, new genes can be transmitted to the next generation. The precondition for the elimination or insertion of genes is that is possible to transfer into the cell recombinant DNA that integrates itself firmly into the DNA of the mammal. This essay makes a conclusion that the use of transgenic mice in cancer research is very prevalent. Its use enables us humans to understand cancer better and come up with solutions. The problem, however, is that many scientists are contesting the appropriateness of relating results from transgenic mice to humans. Many animals are far more genotypically closer to humans. There have been developments lately that humans can be used for clinical tests without wasting lives. Although this remains to be seen, the use of transgenic mouse model can serve as a good source of insights for us humans to understand the malignance that is happening to our body.

Does language determine thought, does thought determine language, or Essay

Does language determine thought, does thought determine language, or is the relationship more complicated than this Discuss wit - Essay Example The linguistic relativity hypothesis is a relatively simple one: Differences in language across cultures can represent different Weltanschauung and contribute to different perceptions of the world (Swoyer, 2003). The linguistic relativity hypothesis is somewhat at odds with other types of linguistics: For example, Chomskyan cognitive linguistics holds that the differences between languages is fairly trivial and likely based on underlying syntatical and grammatical principles that are generated by the brain (Swoyer, 2003). Of course, these hypotheses are not strictly mutually exclusive. Clearly, different languages exist; also clearly, languages do not routinely refer to how things look like in six dimensions of space, with time flowing backwards, or in the ultraviolet spectrum, because those are things that human beings cannot easily perceive or comprehend even intellectually. The linguistic relativity hypothesis is sometimes called the Whorf-hypothesis or Whorf-Sapir hypothesis, bas ed on the work of Benjamin Lee Whorf and (to a slightly lesser extent) Edward Sapir (Swoyer, 2003). Regrettably, while fascinating work has been done in the field of linguistic relativity, there has not been consistent, methodologically ironclad work on how the implications of this research speak about the relationship between thought and language (Lucy, 1992). About the best that can be said is that linguistic relativity research has been able to demonstrate that language has an impact upon but does not control thought or reality, and that there is a mutual feedback loop between social and lived reality, language, and thought, which plays out over time (Tohidian, 2009). Davies and Corbett (1997), carrying out work that has also been done by Borditsky (2009), found that colour-grouping varies across societies. Russians, for example, sub-divide blue differently than English speakers (Borditsky, 2009). But Davies and Corbett (1997) found only weak support for linguistic relativity: Lo oking at English, Russian and Setswana, they found that, while Setswana speakers who have one term for blue and green would group blue and green together, Russian speakers (even with two words for blue) did not group light and dark blue separately. And within each of the samples, consensus in grouping, groups formed and distribution varied. Moreover, the research assumes that there is a blue-green connection, a gradation between the two on the light spectrum that allows there to be reasonable linguistic variation. The research assumes, logically enough, that no language would classify red and blue together, or white and black, since they are sharply and clearly different. Davies and Corbett (1997) thus end up supporting perceptual universalism with weak linguistic relativism, which does indicate that thought has some precedence over language: Language differences do not make people see different colours, they only make them disagree as to which linguistic pigeonhole to use, and even then only in marginal cases. However, variation in color categorisation and emphasis is tremendous (Ottenheimer, 2008). Hanunoo people in the Philippines have four primary colour terms: One for black and very dark colors, one for white and very pale colors, a green color which is associated with succulence and freshness, and a red color associated

International Challenges for Ubers Expansion

International Challenges for Ubers Expansion Uber’s future depends on international growth, but currently they are experiencing international challenges within their non-U.S. markets. I will introduce their brief history, explain their current challenges, international expansion plans, their strategy plans, and a few insights on how they can achieve greater success in international markets. Predominantly, Uber has brutally underestimated the challenges of operating in countries that embody totally different economic, political, and cultural environments. Their definitive goal is to become one of the only international ride-hailing company, however they didn’t realize all the major setbacks they would come across internationally. Quick Uber History Uber headquarters is â€Å"located in San Francisco, California and operates in 632 other cities worldwide† (Uber Technologies Inc., 2017). In conjunction, â€Å"Uber has expanded to more than 80 countries since its June 2010 initial launch in San Francisco, California† (Hyder, 2014).   Uber was â€Å"founded March of 2009 by Travis Kalanick and Garrett Camp† (Uber Technologies Inc., 2017).   Uber Technologies, Inc. â€Å"provides e-commerce services for car hire and the company offers a website which develops applications that allow users to request a car for hire from any mobile device text message while serving customers worldwide† (Bloomberg, 2017). Moreover, the company was originally an idea that Travis Kalanick and Garrett Camp originated, while encountering some trouble attaining a cab. Their idea was to simply invent something that with the tap of a button you could get a cab/ride and not have to struggle like they did. Stated on the Uber website, â€Å"What started as an app to request premium black cars in a few metropolitan areas is now changing the logistical fabric of cities around the world. Whether it’s a ride, a sandwich, or a package, we use technology to give people what they want, when they want it† (Uber Technologies Inc., 2017). Uber not only provides rides to their customers, but they also provide men and women a way to earn money by letting them use their own vehicle to give their clienteles rides. Also, noted on the Uber website, â€Å"for the women and men who drive with Uber, our app represents a flexible new way to earn money. For cities, we help strengthen local economies, improve access to transportation as reliable as running water, everyone benefits† (Uber Technologies Inc., 2017). Current Challenges Uber was the first major ride-hailing company with mobile on-demand transportation. As competition started to intensify, Uber strategized on how to remain number one in this market area. They realized in recognition of the risk posed by these followers into the market, they needed to rapidly and aggressively grow both domestically and internationally. However, along the way â€Å"Uber’s expansion was met with both excitement and major blocks resulting from lawsuits, technological limitations, and government regulation† (Hyder, 2014). Ubers expensive push into china ended abruptly in 2016, when its domestic rival Didi Chuxing announced it had acquired Uber China and more recently Uber merged with Yandex, marking its exit from another major international market, Russia. Governments, drivers, and passengers launched a seemingly endless stream of lawsuits and taxi firms organized protests in Europe and South America as they recognized their business were under threat. Ubers legal and ethical conduct was put under further scrutiny when their drivers argued that they were being exploited as part of the sharing economy. Additionally, I will list some initial challenges Uber faced within these following countries. As mentioned in Recode article written by Johana Bhuiyan, â€Å"in Russia, it was a fierce opponent willing to play the subsidy game that drove the company out, while it was regulatory issues that has stymied it in Europe† (Bhuiyan, 2017). Also, in Denmark, where â€Å"Uber announced it was leaving in March, it was new regulations that required it to act more like a taxi company, requiring that drivers install things like meters in their cars. The company said it plans to revive its operation in Denmark when laws change† (Bhuiyan, 2017). Following in Spain, â€Å"the company had been previously banned in cities across the country, Uber has continued to face protests from taxi drivers in these cities† (Bhuiyan, 2017). France currently had legal disagreements with Uber regarding they should be treated as a taxi service hence controlled like one too which then charged Uber for being an illegal taxi service (Bhuiyan, 2017). In many more places like, Southeast Asia, Hong Kong, Taiwan, and Thailand they have all charged Uber penalties for operating on their land illegally. In regard to India and China, â€Å"they are similar markets in terms of both size and the cost of undercutting prices to maintain or grow demand. Expansion within the region on its own would require significant capital† (Bhuiyan, 2017). These are just a few of the many different challenges Uber has been faced with since branching out internationally. International Expansion and Strategy Plans Astonishingly, in less than eight years Uber has accomplished expansion in more than 450+ markets all over the world and is continuously growing. As stated in an article, â€Å"expanding internationally has involved a series of changes to the mobile application and business model in order to localize it to the market and culture. Uber has had to make changes to accommodate different languages, currencies, and distance measures (e.g. miles vs. kilometers)† (Hyder, 2014). As cited by Hyder she mentioned, â€Å"Travis Kalanick wrote about Uber’s international expansion in a blog posting: as we started expanding, it became clear that individual cities were the unique factor in our launches. Each city is unique in its transportation pain points, its density, its transportation alternatives, regulation, even its transportation culture† (2014). Moreover, Uber first tried implementing what worked in the U.S. and applied some of those techniques to respective countries however, they were one of the companies that learned the hard way, realizing that what may have worked in the U.S. wouldn’t work elsewhere. Stated in an article written by Suhas Manangi, â€Å"the young tech company has committed a classic globalization mistake: it naively assumed that its business model and market approach, which ultimately solidified its market-leading position in the U.S., could translate just as seamlessly to other countries. It severely underestimated the challenges of operating in countries that embody totally different economic, political, and cultural environments† (2017). What Uber predominantly saw was the common transportation problem within many countries that required a solution. As specified in an article, â€Å"localization is a key ingredient of Uber’s Asia Pacific (APAC) marketing strategy as it battles to stay ahead of regional competition. However, localization goes beyond services which might include cash payments for some emerging markets where credit cards are not feasible, or in China, where Uber has partnered with Alibaba’s Ali-pay system – the preferred payment method of Chinese consumers† (Manangi, 2017). Correspondingly, this article mentions â€Å"Uber calls its globalization strategy â€Å"launch playbook,† a list of business strategies and operating guidelines that have been complied by an internal team of about forty employees. At the same time, Uber is smart to have flexibility in different markets that local Uber leaders can adapt and not have the same features everywhere† (Manangi, 2017). Examples of this include, UberCHOPPER in Shanghai, UberBOATS in Istanbul, and UberAUTO in New Delhi, India. Recommendations for Greater Success Internationally Following the six quick rules of thumb for doing business across cultures is a strategy Uber should incorporate. They need to be prepared, be considerate of time, establish trust, understand the importance of language, respect the culture, and understand components of the culture they are in.   As stated by Ball and Geringer, â€Å"knowing your customer is just as important in the world as it is in your hometown. Each culture has its logic, and within that logic are real, sensible reasons for the way they do things† (2013). Uber needs a â€Å"businessperson who can figure out the basic pattern of the culture which in turn will be increasingly effective interacting with foreign clients† (Ball & Geringer, 2013). Furthermore, for greater success internationally, Uber should be more careful in looking at its practice and policies therefore, considering if they are appropriate to incorporate in each specific country. China, India, and Europe differ in many ways from their home country, Uber will have greater success if they ask for permission to operate in specific countries instead of just intruding and then consequently finding out they were doing business illegally. Doing so will then convey respect to those countries regulations and organizations. As mentioned previously, aggressive entry tactics should be eliminated and instead Uber should initially invest time building solid relationships with the various unions within the country. Another tactic Uber should integrate is preparation and planning. Uber generally did not produce a plan before going international they just learned and adapted as they went resulting in cost inefficiency. Which, reverts back to the six quick rules of thumb, rule number one, being prepared is key. In order to help Uber with better preparation with planning, they should follow the global strategic planning process as referenced by Ball and Geringer, â€Å"global strategic planning provides a formal structure in which managers (1) analyze the company’s external environment, (2) analyze the company’s internal environment, (3) define the company’s business and mission, (4) set corporate objectives, (5) quantify goals, (6) formulate strategies, and (7) make tactical plans† (2013). Lastly, instead of withdrawing from the countries that already have a big advantage over Uber, because of their already existing taxi companies within the local country, they should instead try partnering with its local rivals. Simply because trying to do everything on their own is a strategically challenging, hence the reason why they have backed out of multiple countries. Conclusion To conclude, Uber has had to overcome many challenging obstacles along the way of becoming an international business. Failing to plan, failure to fit local market objectives, and learning from their mistakes are all topics resulting from expanding internationally. Uber needs to respectively appreciate and keep in mind while operating in different countries, their different economic, political, and cultural environments. Also, â€Å"providing customization to local markets is an expensive task requiring significant financial backing and of the mind share from the senior executives, hence the need for a carefully thought out strategy for global expansion is required† (Manangi, 2017). Their goal is to maintain number one within international ride-hailing companies, but with all the competition and challenges in today’s world there is potential in them losing this sustainability if a new direction in strategic planning is not met. References Ball, D. A. (2013).  International Business: The Challenge of Global Competition  (13th ed.).New York: McGraw-Hill/Irwin. Bhuiyan, J. (2017, July 14). It’s a Hard World After all in Uber’s Path to Global Domination. Retrieved February 13, 2018, from https://www.recode.net/2017/7/14/15964808/uber-global-domination-yandex-didi Bloomberg L.P. (2017). Uber Technologies Inc: Company Profile Bloomberg. Retrieved from https://www.bloomberg.com/profiles/companies/0084207D:US-uber-technologies-inc Hyder, Y. (2014, February 7). Case: Uber. Retrieved February 13, 2018, from http://soumyasen.com/IDSC6050/Case15/Group15_index.html Manangi, S. (2017, August 1). Uber’s Global Expansion Strategy – â€Å"Think Local to Expand Global† – Will it Work for Startups? Retrieved February 13, 2018, from https://www.linkedin.com/pulse/ubers-global-expansion-strategy-think-local-expand-work-manangi Uber Technologies Inc. (2017). The Uber Story. Retrieved from https://www.uber.com/our-story/

Usefullness of Mathematics in Everyday Life Essay -- Math Mathematics

Usefullness of Mathematics in Everyday Life G H Hardy once said that "Very little of mathematics is useful practically, and that little is comparatively dull". This statement is blatantly incorrect. Mathematics appears in virtually all fields in some form or another, and it is the only truly universal language. Even fields considered the opposite of mathematics, such as literature, are filled with different forms of math. Music is based very heavily on numbers, and even religions hold different numbers as sacred. Of course one could say that all these examples are merely basic arithmetic. What about higher mathematics? Can we really use algebra, probability, calculus or any other higher form of math in today's society? The answer to that question is a resounding "Yes!" Even higher mathematics has been and is still used in all sorts of fields, and it is the purpose of this paper to show just a few ways in which higher math has been applied to life. First of all, no discussion about the uses of higher mathematics in the real world would be complete without mentioning something that happened over sixty years ago. On September 3, 1939, Britain and France declared war on Germany in response to their invasion of Poland. To combat their new enemies, Germany quickly sent a land army to overrun France, and then prepared to take on England. Hitler's plan to defeat this small island was to stop all resources from getting through to them, effectively starving them into surrender. The Nazi army had a very effective weapon with which they could challenge the British supremacy of the waves, the U-boat. The German submarines wreaked havoc on the British supply routes, and Churchill knew that if a way couldn't be found to stop the German s... ...they owe the government and how to pay the least. Nearly all people on earth are affected by math everyday. Without mathematics, it is very possible that the Allies would have lost WW2 and we'd all be speaking German right now. Countless buisnesses would be alterred or totally gone if mathematics was not around. A world without math would certainly be a very different world to live in. Works Cited: [1] Davis, Donald M. The nature and power of mathematics. Princeton, N.J. : Princeton University Press, c.1993. [2] Prabhu, N. U. Stochastic storage processes : queues, insurance risk, dams, and data communication. New York : Springer, c.1998. [3] Stewart, James. Calculus: Early Trancendentals. Thomson Learning. Stanford, CT. 2001. [4] PBS Online c.1996-2001 WGBH Educational Foundation. Update Nov. 2000. http://www.pbs.org/wgbh/nova/ <October 11, 2001>

Religion on social change Essay

This essay is to assess the contribution of religion as a cause of social change and what it has cause throughout the years, some say that religion acts as a conservative force, other say it is a major contributor of social change and some like to take the middle ground on this topic. Religion to sociologist can be seen in two types of ways which is either a conservative force (keeping thing the way they are) or a force for change. Those who see it as a conservative are the ones who believe it’s a force of stability and order whereas the force for change sociologist would say religion encourages societies to change. Religion being a conservative force function is to preserve status quo by maintaining traditional beliefs and maintaining patriarchy. Religion has many functions functionalist believe that religion maintains social solidity, social stability and a value consensus and is therefore supports religion being a concretive force. Marxist on the other hand see it as an ide ology that prevents social change by legitimating and reproducing inequality and also disguises exploitation. Feminist also believe religion being a conservative force is a negative force because it legitimates patriarchal power and maintains women’s subordination. Religion can be seen as a conservative force as well as being force for change, the most famous of these being Max Weber study of the protestant ethic and spirit of capitalism. Weber argues that the religious beliefs of the Calvinist helped bring about a major social change, specifically the emergence of modern capitalism in n northern Europe in the 16th and 14th centuries. The Calvinist had several distinctive beliefs which were: predestination which was that God has already predestination which souls will be saved and who’s not and that no individual can change that. Another belief of theirs is the divine transcendence which is that God is immortal and no human can claim to know his will (including priests) and which this combined creates that Weber refers to as ‘salvation panic’. One other belief the Calvinist believe in is asceticism which is being abstinence, having self discipline and self denial to just live a simple life as Jesus did. The last but no least belief is the idea of a vocation or calling which are defined by two functions, 1 is it helped the Calvinist to cope with their salvation panic as they took this as a sign of God’s favour ad their  salvation- for why else would they have prospered and 2 is their accumulated wealth by the most efficient and rational means possible and not spending it on luxuries but instead reinvesting it (which in Weber’s view is the spirit of modern capitalism). It is very important to note that Weber’s was not arguing that the Calvinist beliefs were the cause of modern capitalism but simply that they were one of its causes. Other societies had a higher rate of economic growth than northern Europe in the 16th and 17th century but failed to adopt modern capitalism. China and India were more materially advanced but didn’t adopt capitalism due to their lack of religious belief like the Calvinist. They promote rewards in the other life, good deeds and other goals that lacked the material drive that Calvinism created. Weber has theory has many criticisms some of these are that for example Kautsky argues that Weber overestimates the role of ideas and underestimates economic factors in bring capitalism in to being, he argues that in fact capitalism preceded rather than followed Calvinism . Similarly R.H Tawney argues that technological change, not religious ideas, caused the birth of capitalism. Weber has also been criticised because capitalism did not develop in every country where there were Calvinist, for example in Scotland. Steve Bruce is interested in the relationship between religion and social change, he therefore used two case studies to analyse this, The American civil rights movements and The New Christian Right. The new Christian movement is a religiously motivated movement to end racial segregation in America in the 1950s to 60s. The black clergy played a major role (Dr Martin Luther King) giving moral legitimacy to activists, they provided sanctuary and unity, appealed to common Christian values of equality. Bruce sees religion is an ideological resource he identified several ways in which religious organisations are well equipped to support protest and contributes to social change: 1) Taking the moral high ground which is the black clergy pointed out the hypocrisy of white clergy who preached ‘love thy neighbour’ but supported racial segregation, 2) channelling dissent is religion provides channels to express political dissent, For example the funeral of Martin Luther king was a rallying point for the civil right cause. 3) Acting as honest broker because churches can provide a context for negotiating changes because they are often respected by both sides in a conflict and see n as standing above ‘mere politics’ and lastly 4) Mobilising public opinion is  when black churches in the south successfully campaigned for support across the whole of America. It had the shared values of those in power and those in wider society and could use these to push for change. The New Christian Rights is a politically and morally conservative, protestant fundamentalist movement it has gained prominence since 1960s because of its opposition to the liberalising of American society. They want to take America ‘back to God’. As well as want abortion, homosexuality and divorce illegal and ban SRE in schools. They also want to bring back the traditional family and gender roles (patriarchy) and teach only the creationism, nothing about evolution or big bang theory. The new Christian right has been largely unsuccessful in achieving their aim, reasons are because the ‘moral majority’ was never a majority, but 15% of the population at most, also its campaigners find it difficult to cooperate with people from other religious groups and they lack widespread support and has met with strong opposition from groups who stand for freedom of choice. The new Christian rights is described as a failed movement for change , despite enormous publicity and a high profile in the media it has not achieved its aims of taking America ‘back to god’. In conclusion religion has played such a big role in past and current society, some might say for the best others may disagree. As in item A ‘†¦ religion can play an important part in bringing about social change for example religious ideas can be a powerful motivation for change, as Weber showed in his study of Calvinist.’ , as well as also campaigning for social reform.

Free Essays on Bill Of Rights

In 1791, the Bill of Rights, consisting of 10 amendments, was ratified into the constitution. The document’s purpose was to spell out the liberties of the people that the government could not infringe upon. Considered necessary by many at the time of its development, the Bill of Rights became the cause for a huge debate between two different factions: The Federalists and the Anti-Federalists. The Federalists were those who thought that there should be a new Union created with a strong centralized government and individual regional governments. They felt that it was not necessary for there to be a bill of rights because it was implied that those rights the Constitution did not specifically state would be handed down to the states. On the other hand, the Anti-Federalists were opposed to such a form of government on the grounds that the Constitution, in which it was outlined, lacked clarity in the protections of the individuals. The Anti-Federalists- whose memory of British oppre ssion was still fresh in their minds- wanted certain rights and guarantees that were to be apart of the constitution (Glasser 1991). A clear demonstration of the Anti-Federalist attitude was performed by Samuel Bryan, who published a series of essays named the ‘Cenitnal Essays,’ which â€Å"assailed the sweeping power of the central government, the usurpation of state sovereignty, and the absence of a bill of rights guaranteeing individual liberties such as freedom of speech and freedom of religion (Bran 1986).† Of course, the freedoms stated above are a portion and not the whole of The Bill of Rights. Ultimately, The Bill of Rights was adopted to appease the Anti-Federalists, whose support was necessary to ratify the constitution, and who believed that without the liberties granted therein, the new constitution- that they thought was vague and granted too much power to the central government- would give way to an elite tyrannical government. The purpose... Free Essays on Bill Of Rights Free Essays on Bill Of Rights In 1791, the Bill of Rights, consisting of 10 amendments, was ratified into the constitution. The document’s purpose was to spell out the liberties of the people that the government could not infringe upon. Considered necessary by many at the time of its development, the Bill of Rights became the cause for a huge debate between two different factions: The Federalists and the Anti-Federalists. The Federalists were those who thought that there should be a new Union created with a strong centralized government and individual regional governments. They felt that it was not necessary for there to be a bill of rights because it was implied that those rights the Constitution did not specifically state would be handed down to the states. On the other hand, the Anti-Federalists were opposed to such a form of government on the grounds that the Constitution, in which it was outlined, lacked clarity in the protections of the individuals. The Anti-Federalists- whose memory of British oppre ssion was still fresh in their minds- wanted certain rights and guarantees that were to be apart of the constitution (Glasser 1991). A clear demonstration of the Anti-Federalist attitude was performed by Samuel Bryan, who published a series of essays named the ‘Cenitnal Essays,’ which â€Å"assailed the sweeping power of the central government, the usurpation of state sovereignty, and the absence of a bill of rights guaranteeing individual liberties such as freedom of speech and freedom of religion (Bran 1986).† Of course, the freedoms stated above are a portion and not the whole of The Bill of Rights. Ultimately, The Bill of Rights was adopted to appease the Anti-Federalists, whose support was necessary to ratify the constitution, and who believed that without the liberties granted therein, the new constitution- that they thought was vague and granted too much power to the central government- would give way to an elite tyrannical government. The purpose... Free Essays on Bill Of Rights The first ten amendments of the Constitution of the United States are called the Bill of Rights. These amendments were ratified on December 15, 1791. The first amendment deals with religion, speech, assembly, and politics. The second amendment talks about the militia and right to bear arms. The third amendment discuses the topic of quartering soldiers. The fourth amendment talks about search and seizures. The Fifth Amendment talks about juries, self-incrimination, double jeopardy, due process and eminent domain. The sixth amendment deals with criminal court procedures. The seventh amendment is the right of trial by jury in common law cases. The eighth amendment discusses bail, cruel and unusual punishment. The ninth amendment deals with the rights retained by the people. The last amendment talks about powers to the people and/or states. The first amendment states the congress can not make any laws respecting a religion. Everyone has the right to pick his or her own religion. The government is not allowed to tell the people that they have to all picks the same religion. The amendment also talks about the freedom of speech and/or the press. The people are allowed to speak their mind. No one can tell someone to be quiet to this amendment. First amendment also discusses the freedom to peacefully assemble. This means that people can protest as long as that they do it in a peacefulable way. They can not interfere with other things going on like traffic. They can not block traffic, doors and entrances. The second amendment is about the militia and the right to bear arms. We will always need the National Guard in case of any state disasters. We need to be able to keep on running well and trained. If we don’t keep up a good Guard then we will not be able to respond to disasters. There are a lot of associations that make sure we can have the right to bear arms. The NRA (National Rifle Association) is a very outspoken group for the amendm...

iOS Development in C# with Xamarin and Visual Studio

iOS Development in C# with Xamarin and Visual Studio In the past, you may have considered Objective-C and iPhone development but the combination of a new architecture and a new programming language together may have been too much. Now with Xamarin Studio, and programming it in C#, you may find the architecture not that bad. You may end up coming back to Objective-C though Xamarin makes feasible any type of iOs programming including games. This is the first of a set of tutorials on programming iOS Apps (ie both iPhone and iPad) and eventually Android Apps in C# using Xamarin Studio. So what is Xamarin Studio? Previously known as MonoTouch Ios and MonoDroid (for Android), the Mac software is Xamarin Studio. This is an IDE that runs on Mac OS X and its pretty good. If youve used MonoDevelop, then youll be on familiar ground. Its not quite as good as Visual Studio in my opinion but thats a matter of taste and cost. Xamarin Studio is great for developing iOS Apps in C# and likely Android, though that depends on your experiences creating those. Xamarin Versions Xamarin Studio comes in four versions: Theres the free one that can create Apps for the App store but those are limited to 32Kb in size which is not a lot! The other three cost starting with the Indie version for $299. On that, you develop on the Mac and can produce Apps of any size. Next is the Business version at $999 and thats the one used for these examples. As well as Xamarin Studio on the Mac it integrates with Visual Studio so you can develop iOS/Android apps as if writing .NET C#. The clever trick is that it uses your Mac to build and debug the App using the iPhone/iPad simulator while you step through code in Visual Studio. The big version is the Enterprise edition but that wont be covered here. In all four cases you need to own a Mac and to deploy Apps in the App store needs you to pay Apple $99 each year. You can manage to offset paying that until you need it, just develop against the iPhone simulator that comes with Xcode. You have to install Xcode but its in the Mac Store and its free. The Business edition does not have a big difference, just that it is on Windows instead of the Mac with free and Indie editions, and it uses the full power of Visual Studio (and Resharper). Part of that comes down to whether you prefer to develop Nibbed or Nibless? Nibbed or Nibless Xamarin integrates into Visual Studio as a plugin that gives new menu options. But it doesnt yet come with a designer like the Xcodes Interface Builder. If you are creating all your views ( the iOS word for controls) at runtime then you can run nibless. A nib (extension .xib) is an XML file that defines the controls etc in views and links events together so when you click on a control, it invokes a method. Xamarin Studio also requires you to use Interface Builder to create nibs but at the time of writing, they have a Visual designer running on the Mac in alpha state. It will likely become available on the PC as well. Xamarin Covers the Whole iOS API The whole iOS API is pretty massive. Apple currently has 1705 documents in the iOS developer library covering all aspects of iOS development. Since they were last reviewed, the quality has improved a lot. Likewise, the iOS API from Xamarin is pretty comprehensive, though you will find yourself referring back to the Apple docs.​ Getting Started After installing Xamarin software on your Mac, create a new Solution. The project choices include iPad, iPhone, and Universal and also with Storyboards. For iPhone, you then have the choice of an Empty Project, Utility Application, Master-Detail Application, Single View application, Tabbed Application or OpenGl Application. You have similar choices for Mac and Android development. Given the lack of designer on Visual Studio, you can take the nibless (Empty Project) route. Its not that difficult but nowhere as easy to get the design looking spot on. In this case, as you are mainly dealing with square buttons, its not a worry. Architecting iOS Forms You are entering into a world described by Views and ViewControllers and these are most important concepts to understand. A ViewController (of which there are several types) controls how data is displayed and manages view and resource management tasks. The actual displaying is done by a View (well a UIView descendant). The User Interface is defined by ViewControllers working together. Well see that in action in tutorial two with a simple nibless App like this one. In the next tutorial, well look in depths at ViewControllers and develop the first complete App.

Geology Volcanoes&Earthquake Assignment8 Assignment

Geology Volcanoes&Earthquake Assignment8 - Assignment Example An inevitable tide was moving red-hot lava onshore and people watched helplessly. However, a small crew led by Thorbjorn Sigurgeirsson squirted the lava in the front with fire hoses producing vapors of steam (John A. McPhee. 102). The courageously watered and cooled the advancing lava until they stopped the lava flow (John A. McPhee. 107) The gas content in magma or lava determines whether a volcanic eruption will be explosive or effusive. These gases include sulfur dioxide, water vapor and carbon dioxide. A gas highly dissolves in magma that is situated deep underground, where pressure is very high. The rate of dissolution decreases as the lava moves up to the earth’s surface due to reducing pressure, thus, the gas form bubbles that drag magma to the surface. The eruption is explosive if more bubbles form and effusive when there are few bubbles. A cinder cone forms when lava with more bubbles is expelled and cools in the air (Gates and Ritchie p.157). Magma comprises of solid minerals, liquid rocks and gas. The amount of the silica mineral in lava or magma determines a volcanic rock to be formed. The mafic rocks include all basalts and some andesites: have lower silica content, intermediate rocks such as some dacites and most andesites with intermediate silica content, and silicic rocks. Silicic rocks have higher silica content and include all rhyolites and some dacites. Apart from silica, volcanic rocks have other minerals such as titanium, aluminum, iron, manganese, magnesium, calcium, sodium, potassium, and phosphorus. These chemicals are mix with oxygen to form their respective chemical compounds (Park, 2001, p. p.177). A magma viscosity determines a volcano shape, texture and shape of lava, and whether a volcano erupts effusively or explosively. A less viscous lava forms shield volcanoes with wide sloping sides while more viscous lava builds conical volcanoes with steep sides.

Aspects of United States society in the late 20th century and aspects Essay

Aspects of United States society in the late 20th century and aspects of life in the contemporary U.S - Essay Example Fast food is just like cigarettes because they both are horrible for ones self and still millions upon millions of people fall into the manufacturers trap of good advertising. America, as opposed to most of Europe, is always rushed. The average working week is forty hours, with maybe forty-five minutes as a lunch break. This is not enough time for a lavish lunch, leaving fast food as the menu of the day. (Schlosser, 2004) Americans, who live to work, will often bring home fast food as an alternative to the time consuming process of preparing dinner. Fast food is targeted to cater to the speed of an on-the-go American. The popular quote "In, out, and on your way" describes exactly how convenient fast food truly is. Now one doesnt need to go the lengths of in and out, just wait in the drive thru and go. If a person was hungry at 1:00 AM in 1940, he was out of luck. In todays world, one has their choice from a variety of fast food restaurants on every corner; they even have drive through windows so a person doesnt have to get out in their pajamas. For example, Wendys, doesnt close shop until 2:00 AM. In spirit with competitive American capitalism, McDonalds doesnt close now until 2:30. (Maze, 2004) Most cities and towns have rows of fast food restaurants so a person can jump from roof to roof, just in case they felt like Mexican food from Taco Bell rather than a McDonalds hamburger. In recent decades, the family structure of many Americans has changed. In most families, both parents need to work to support their families and to own a house, limiting the amount of time to spend with their children - let alone cooking meals. Fast food restaurants solve this equation easily by giving parents the option of killing two birds with one stone. They can take their kid(s) to a place like McDonalds that allows a parent to feed their children with

Organisational Decision Making Essay Example | Topics and Well Written Essays - 5000 words

Organisational Decision Making - Essay Example The major constituents of a business organization are analysed in the light of the Cadbury case study to justify the aforementioned argument. Human Resource: The staff members of the organization or the human resource of the organization is deemed as the pillar for an organization's sustainability both at operational and strategic levels as argued by Richard Lynch (2003)ii. This is also because of the fact that the human resource is the indispensable asset for an organization. Hence, the inability of an organization to effectively manage the human resource not only to improve their performance but also address their concerns is the primary reason for an organization's failure or financial loss in the target market as argued by Derek Torrington and Laura Hall (2003)iii. From the video, it is clear that the organization was initially one of the preferred places to work by many in the British general public. The strive of the organization to generate more revenue since 1966 was the major factor that influenced the Human Resource of the organization. ... The view on the company under consideration reveals that the effectiveness of the organization was mainly because of its rather 'unusual' method of people management, which not only had direct contact of the senior management with the operational staff but also enabled a sense of responsibility and team working amongst the staff members. The arguments of Kathy Ball - one of the employees of the organization who worked in the company for over forty years in the video justifies the aforementioned. The arguments on the team working and the contact with the management team that was emphasised by Kathy Ball are the critical elements that contribute to the motivation of the staff members. This is the critical element for a strategic growth in the organization as argued by Janice E Carrillo and Cheryl Gaimon (2004)iv. From the Cadbury case study video it is clear that the changes implemented in the organization for the purpose of increasing the revenue through the procedural approach to management and strict portfolios proposed by Mckinsey and Company were the major hurdles for the organization's growth. This is evident from the opinion of not only the ex-staff members but also by Adrian Cadbury the then managing director of the organization. Alongside it is also clear that the company's approach to increasing profits through cutting costs involved with the subsidies provided to the staff members is another critical area where the human resource or the workforce was de-motivated due to organization decision-making. Although the withdrawal of the subsidies are justifiable with the soaring costs in the market, the introduction of middle managers in the team as an approach to streamlining the operations in the organization

Discuss the relationship between institutions and growth Essay Example for Free

Discuss the relationship between institutions and growth Essay North’s definition of institutions implies that the institutions could be formal (for example a legal code, a constitutions, or a regulatory body) and they could also have less formal constraints (for example social norms, or traditions, that help to determine outcomes). It will be difficult to mention institutions without mentioning government and the role it has to play in establishing the rules of the game. Government intervention in the economy is justified by the existence of market failures – the case where the unfettered operation of the market fails to produce the best possible outcome. Market failures include externalities like pollution and the inability of private firms to provide public goods, such as roads. Another form of market failure that can motivate government economic policy is the existence of monopolies, single firms that are the sole suppliers of a particular commodity. And industry such as electricity transmission is often viewed as a natural monopoly because it would be impractical for several companies to string electric wire to every house. In this case, there is a role of government regulation to prevent the monopolist from charging an inefficiently high price. The market failure can also occur in cases requiring the coordination of activities by many firms or many people. Some potential coordination failures and the need for the government to correct them are obvious. It useful for everyone to drive on the same side of the road, and even the most diehard free marketer would have little objection to letting the government announce which side it should be. However, a market failure is not the only reason that governments become involved in the economy. Another motivation for the government to get involved in economic matters is the income redistribution – the transfer of income from rich to poor, from working-age adults to the elderly, or from the general population to members of some favored groups – as one of their proper roles. On the other hand, only few economists argue that there should be no government intervention in the economy. It is rather a question of in which degree the government should intervene. The case against government intervention starts with the observation that, although proper government policy can theoretically fix any market failure, in practice it often fails to achieve its goals. When government tries to take the place of private firms, the resulting enterprises tend to operate inefficiently because they lack the incentives, specifically profit, that motivate private firms. In cases where industries are regulated as natural monopolies, often such regulation effectively preserves the absence of competition In the case of public goods, the debate centers on the question of whether some of the goods that governments supply could have been supplied privately if government had not taken over their provision. In different countries, privatized activities have included the building of roads and telephone networks and the operation of jails. A parallel trend has been the deregulation of industries – removing them from government supervision. The issue of income redistribution presents some of the most difficult questions regarding the proper role of government. In this case, the benefits of such a policy (a greater degree of equality) are of a different nature than the costs of the policy (a lower degree of efficiency). However, critics of big government point out that much of the income that governments redistribute does not flow from rich to poor. Rather, it is redistributed among people in the same income groups, who are at different stages of their life cycles, as when taxes are taken from working-age adults and transfers are paid to elderly. Critics argue that these redistributions have a large effect on the efficiency with which the economy operates but do little or nothing to improve equity. In general, the success of any government intervention depends crucially on the ability and the honesty of the officials entrusted to carry it out. When these qualities are lacking, the resulting government failure can be worse than any market failure that government policy was designed to correct. By looking at different cases of government intervention and the cases against government intervention, I will focus on explaining the tools that governments use to influence the economy. These tools include: the provision of the rule of law, regulation of how firms behave, planning (direction of resources to certain targeted industries), trade policies such as tariffs and quotas, and outright ownership of the means of production. One of the most important public goods that governments provide is the rule of law. In an environment where the rule of law is weak, the factors of production would not be accumulated and the economic activity would be plagued by inefficiency. For both these reasons, the output would decline. In the absence of a legal infrastructure, many of the investments made in a modern economy would not take place because investors would be unable to earn a reasonable return on their money. The rule of law cannot be taken for granted in most of the world. In many countries the judicial systems are weak, and legal cases are as likely to be settled on the basis of who has better political connections as on legitimate legal claims. According to Douglass North, who won the Nobel Prize in economics in 1993, â€Å"The inability of societies to develop effective, low-cost enforcement of contracts is the most important source of both historical stagnation and contemporary underdevelopment in the Third World†. One of the best examples that illustrates the importance of the rule of law is the former Soviet Union case. With the breakup of the communism, the legal structure surrounding basic economic activity became highly uncertain. The line between legitimate business and organized crime blurred, as assets formerly owned by the government in trust for the citizenry as a whole rapidly found their way into the hands of a well-connected few. In this legally unstable environment, income per capita in the Russian Federation fell by 12% in the decade following the 1991 breakup of the Soviet Union. Another important way in which the government affects the state of the economy is by its sheer size. Government that spends a lot of money requires big government revenue and vice versa. Governments raise funds by taxing the citizens and businesses. A few countries, such as Saudi Arabia, make the exception where the natural resource is the primary source of revenue. According to the social scientist Adolph Wagner â€Å"the size of the government would inevitably increase as countries became wealthier, because a more developed economy requires more complex regulation and because many public goods provided by the government are of the type where desired spending rises more than proportionally with income†. Taxes are relevant for economic growth because they directly affect the efficiency with which output is produced. The larger the tax is imposed in a given market the smaller will be the number of transactions that will take place. This means that raising the tax rate will lower the tax base. When taxes are high, some of the potential transactions between buyers and sellers will not take place, and these transactions would have made both groups better off. No tax will be collected on these forgone transactions, but by discouraging transactions, the tax made the potential buyers and sellers worse off. The size of this inefficiency grows with the size of the tax. Because higher taxes shrink the tax base, increases in revenue collected when tax rates rise are not proportional to increases in tax rates. The fact that taxes cause inefficiency in the economy does not mean that there should be no taxes. Government provides public goods without which the economy could not function at all. These public goods are paid for taxation. Thus, even if the government were solely concerned with maximizing GDP per capita, the optimal choice of public goods and taxation involves a trade-off between the costs and benefits. However, not all of the money that governments collect as tax revenues goes toward supplying public goods. One of the major functions of government is to make transfers of income to people. The largest transfers are old-age pensions; other transfers include unemployment benefits and welfare payments to the poor. Government planning and the protection of infant industries with tariffs have failed, in almost most of the cases. The economic planning occurred in the decades after WWII, when governments in newly independent countries in the developing world experimented with various policies to improve their backward conditions. State enterprises, for example, were totally inefficient. The managers of these enterprises, facing neither competition from other firms nor pressure from shareholders to produce profits, had little incentive to strive for efficiency in production. Marketing boards, which were initially supposed to raise farmers’ income, ended up doing just the opposite as government officials could not resist the temptation of the revenues that passed through their hands. Trade restrictions were also counterproductive. In theory, infant industry protection should have been offered only to industries where a country had a chance of being a competitive producer. In practice, governments protected any industry which enough political power – and often all industries indiscriminately. Furthermore, most of the â€Å"infant† industries that were protected never managed to grow up. Facing no pressure from foreign competition, they remained inefficient. As one can notice, institutions determine incentives and constraints and shape outcomes. Different groups and individuals will benefit from different institutions. Therefore, the institutional choices will depend on who has the political power.

History of the Laser

History of the Laser INTRODUCTION The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. Light is really an electromagnetic wave. Each wave has brightness and color, and vibrates at a certain angle, so-called polarization. This is also true for laser light but it is more parallel than any other light source. Every part of the beam has (almost) the exact same direction and the beam will therefore diverge very little. With a good laser an object at a distance of 1 km (0.6 mile) can be illuminated with a dot about 60 mm (2.3 inches) in radius. As it is so parallel it can also be focused to very small diameters where the concentration of light energy becomes so great that you can cut, drill or turn with the beam. It also makes it possible to illuminate and examine very tiny details. It is this property that is used in surgical appliances and in CD players. It can also be made very monochromic, so that just one light wavelength is present. This is not the case with ordinary light sources. White light contains all the colors in the spectrum, but even a colored light, such as a red LED (light emitting diode) contains a continuous interval of red wavelengths. On the other hand, laser emissions are not usually very strong when it comes to energy content. A very powerful laser of the kind that is used in a laser show does not give off more light than an ordinary streetlight; the difference is in how parallel it is. Before the Laser there was the Maser In 1954, Charles Townes and Arthur Schawlow invented the maser (microwave amplification by stimulated emission of radiation), using ammonia gas and microwave radiation the maser was invented before the (optical) laser. The technology is very close but does not use a visible light. The maser was used to amplify radio signals and as an ultrasensitive detector for space research. Many different materials can be used as lasers. Some, like the ruby laser, emit short pulses of laser light. Others, like helium-neon gas lasers or liquid dye lasers emit a continuous beam of light. Laser action Lasers are possible because of the way light interacts with electrons. Electrons exist at specific energy levels or states characteristic of that particular atom or molecule. The energy levels can be imagined as rings or orbits around a nucleus. Electrons in outer rings are at higher energy levels than those in inner rings. Electrons can be bumped up to higher energy levels by the injection of energy-for example, by a flash of light. When an electron drops from an outer to an inner level, excess energy is given off as light. The wavelength or color of the emitted light is precisely related to the amount of energy released. Depending on the particular lasing material being used, specific wavelengths of light are absorbed (to energize or excite the electrons) and specific wavelengths are emitted (when the electrons fall back to their initial level). In a cylinder a fully reflecting mirror is placed on one end and a partially reflecting mirror on the other. A high-intensity lamp is spiraled around the ruby cylinder to provide a flash of white light that triggers the laser action. The green and blue wavelengths in the flash excite electrons in the atoms to a higher energy level. Upon returning to their normal state, the electrons emit their characteristic ruby-red light. The mirrors reflect some of this light back and forth inside the ruby crystal, stimulating other excited chromium atoms to produce more red light, until the light pulse builds up to high power and drains the energy stored in the crystal. High-voltage electricity causes the quartz flash tube to emit an intense burst of light, exciting some of the atoms in the ruby crystal to higher energy levels. At a specific energy level, some atoms emit particles of light called photons. At first the photons are emitted in all directions. Photons from one atom stimulate emission of photons from other atoms and the light intensity is rapidly amplified. Mirrors at each end reflect the photons back and forth, continuing this process of stimulated emission and amplification. The photons leave through the partially silvered mirror at one end. This is laser light. EINSTEINS THEORY OF LASER Although Einstein did not invent the laser his work laid the foundation. It was Einstein who pointed out that stimulated emission of radiation could occur along with spontaneous emission absorption. He used his photon mathematics to examine the case of a large collection of atoms full of excess energy and ready to emit a photon at some random time in a random direction. If a stray photon passes by, then the atoms are stimulated by its presence to emit their photons early. More remarkably, the emitted photons go in the same direction and have exactly the same frequency as the original photon ! Later, as the small crowd of identical photons moves through the rest of the atoms, more and more photons will leave their atoms early to join in the subatomic parade. All it took to invent the laser was for someone to find the right kind of atoms and to add reflecting mirrors to help the stimulated emission along .The acronym LASER means Light Amplification by (using Einsteins ideas about) Stimulated Emission of Radiation. Stimulated Emission A third type of photon-related electron transitions in an atom is stimulated emission. Suppose an electron is in a higher energy level and a photon comes along with an energy equal to the difference between the electrons energy and a lower energy.Then the photon will stimulate the electron to fall into the lower energy state, thereby emitting a photon. The emitted photon will have the same energy as the original photon, and viewed as waves we will then have two waves emerging from the atom in phase with the same frequency. Such waves will constructively interfere, leading to a more intense wave. This is the principle behind the laser, which stands for Light Amplification by Stimulated Emission of Radiation. In a laser atoms are kept in an excited state by pumping the laser, and some photons are inserted. This causes some atoms to undergo stimulated emission, and the resulting photons cause other atoms to undergo stimulated emission, leading to a chain reaction. The resultant light is very intense and coherent (composed of one frequency), and can be easily focused. TYPES OF LASER ON THE BASIS OF ENERGY LEVEL Two level: In this photon from mata stable state jumps to second level on excitation Three level: In this photon from mata stable state jumps to third level on excitation Four level: In this photon from mata stable state jumps to fourth level on excitation ON THE BASIS OF MATERIAL USED Gas lasers Helium Neon Laser It is used in Interferometer, holography, spectroscopy, barcode scanning, alignment, optical demonstrations. Argon Laser It is used in Retinal phototherapy (for diabetes), lithography, confocal microscopy,spectroscopy pumping other lasers. Krypton Laser This laser is used in Scientific research, mixed with argon to create white-light lasers, light shows. Xenon ion Laser used in scientific research. In this type of laser many lines throughout visible spectrum extend into the UV and IR. Nitrogen Laser It is used in Pumping of dye lasers, measuring air pollution, scientific research. Nitrogen lasers can operate superradiantly (without a resonator cavity). Amateur laser construction. Carbon Dioxide laser It is used in Material processing (cutting, welding, etc.), surgery. It is produced by Transverse (high power) or longitudinal (low power) electrical discharge. Excimer Laser This type of laser is produced by excimer recombination via electrical discharge.It is used in Ultraviolet lithography for semiconductor manufacturing, laser surgery, LASIK Chemical lasers These type of lasers are used as directed-energy weapons like: Hydrogen Fluoride laser: It is formed by Chemical reaction in a burning jet of ethylene and nitrogen trifluoride (NF3) and is used in research for laser weaponry by the U.S. DOD, operated in continuous wave mode, can have power in the megawatt range. Deuterium fluoride laser: It is used in MIRACL, Pulsed Energy Projectile Tactical High Energy Laser COIL (Chemical oxygen-iodine laser): It is produced by Chemical reaction in a jet of singlet delta oxygen and iodine and is used in Laser weaponry, scientific and materials research, laser used in the U.S. militarys Airborne laser, operated in continuous wave mode, can have power in the megawatt range. DYE LASER: These type of lasers are used in Research, spectroscopy, birthmark removal, isotope separation. The tuning range of the laser depends on which dye is used. Metal-vapor lasers Helium-cadmium (HeCd) metal-vapor laser: They are used in Printing and typesetting applications, fluorescence excitation examination (ie. in U.S. paper currency printing), scientific research. Helium-mercury (HeHg) metal-vapor laser: They are used in Rare, scientific research, amateur laser construction. Helium-silver (HeAg) metal-vapor laser, Neon-copper (NeCu) metal-vapor laser: They are used in scientific research. Copper vapor laser: It is used in Dermatological uses, high speed photography, pump for dye lasers. Gold vapor laser: This type of laser is used in Rare, dermatological and photodynamic therapy uses. Solid-state laser Ruby laser: Used in Holography, tattoo removal. The first type of visible light laser invented; May 1960. Nd:YAG laser : used in Material processing, rangefinding, laser target designation, surgery, research, pumping other lasers (combined with frequency doubling to produce a green 532 nm beam). One of the most common high power lasers. Usually pulsed (down to fractions of a nanosecond) Er:YAG laser: used in Periodontal scaling, Dentistry Neodymium YLF (Nd:YLF) solid-state laser: Mostly used for pulsed pumping of certain types of pulsed Ti:sapphire lasers, combined with frequency doubling. Neodymium doped Yttrium orthovanadate (Nd:YVO4) laser: Mostly used for continuous pumping of mode-locked Ti:sapphire or dye lasers, in combination with frequency doubling. Also used pulsed for marking and micromachining. A frequency doubled nd:YVO4 laser is also the normal way of making a green laser pointer. Neodymium glass (Nd:Glass) laser: Used in extremely high power (terawatt scale), high energy (megajoules) multiple beam systems for inertial confinement fusion. Nd:Glass lasers are usually frequency tripled to the third harmonic at 351 nm in laser fusion devices. Cerium doped lithium strontium(or calcium) aluminum fluoride (Ce:LiSAF, Ce:LiCAF): Used in Remote atmospheric sensing, LIDAR, optics research. Erbium doped and erbium-ytterbium codoped glass lasers: These are made in rod, plate/chip, and optical fiber form. Erbium doped fibers are commonly used as optical amplifiers for telecommunications. Semiconductor laser Semiconductor laser diode has working wavelength between 0.4-20Â µm, depending on active region and are used in Telecommunications, holography, printing, weapons, machining, welding, pump. There are many different types of semiconductor lasers like: AlGaAs : used in Optical discs, laser pointers, data communications. 780 nm Compact Disc player laser is the most common laser type in the world. Solid-state laser pumping, machining, medical. InGaAsP : used in Telecommunications, solid-state laser pumping, machining, medical. Quantum cascade laser : used in Research,Future applications may include collision-avoidance radar, industrial-process control and medical diagnostics such as breath analyzers. Other types of lasers Free electron laser : This type of laser is having a broad wavelength range (about 100 nm several mm); one free electron laser may be tunable over a wavelength range and is basically used in atmospheric research, material science, medical applications. Gas dynamic laser : used In Military applications; can operate in CW mode at several megawatts optical power and is produced by Spin state population inversion in carbon dioxide molecules caused by supersonic adiabatic expansion of mixture of nitrogen and carbon dioxide. Nickel-like Samarium laser : It has pumping source Lasing in ultra-hot samarium plasma formed by double pulse terawatt scale irradiation fluences created by Rutherford Appleton Laboratorys Nd:glass Vulcan laser and first demonstration of efficient saturated operation of a sub-10 nm X-ray laser, possible applications in high resolution microscopy and holography, operation is close to the water window at 2.2 to 4.4 nm where observation of DNA structure and the action of viruses and drugs on cells can be examined. Raman laser, uses inelastic stimulated Raman scattering in a nonlinear media, mostly fiber, for amplification. It finds its applications in Complete 1-2 Â µm wavelength coverage; distributed optical signal amplification for telecommunications; optical solitons generation and amplification APPLICATIONS Industrial Applications of Laser Today, laser can be found in a broad range of applications within industry, where it can be used for such things as pointing and measuring. In the manufacturing industry, laser is used to measure the ball cylindricity in bearings by observing the dispersion of a laser beam when reflected on the ball.Laser also works as a spirit level and can be used to indicate a flat surface by just sweeping the laser beam along the surface. This is, for instance, used when making walls at building sites. In the mining industry, laser is used to point out the drilling direction. Laser technologies have also been used within environmental areas. One example is the ability to determine from a distance the environmental toxins in a column of smoke. Other examples are being able to predict and measure the existence of photochemical smog and ozone, both at ground level where it isnt wanted and in the upper layers of the atmosphere where it is needed. Laser is also used to supervise wastewater purification. Laser works as a light source in all fiber optics in use. It has greater bandwidth. It is insensitive to interference from external electrical and magnetic fields. Fiber optics is used increasingly often in data and telecommunications around the world. Medicine Laser is used in medicine to improve precision work like surgery. Brain surgery is an example of precision surgery that calls for the surgeon to reach the intended area precisely. To make sure of this, lasers are used both to measure and to point in the area in question. Birthmarks, warts and discoloring of the skin can easily be removed with an unfocused laser. The operations are quick and heal quickly and, best of all, they are less painful than ordinary surgery performed with a scalpel. RECENT APPLICATIONS DVD A DVD player contains laser that is used not because it produces a parallel beam, but rather because the light emerges from a tiny point, which enables it to be focused on the different layers of the disc. The information, ones and zeros, is stored in several layers, and only one layer is to be read at a time. Every point on a particular layer is read during every revolution of the disc. In order to make room for a lot of information on every disc, the beam has to be focused on as small an area as possible. This cannot be done with any other light source than a laser. Laser Pointers Lasers pointers are made from inexpensive semiconductors laser as together with lens produce a parallel beam of light that can be used to make a bright spot to point with. Their range is very large. If one points at a surface 200 meters (220 yards) distant in the dark, a person standing close to the object being pointed at will have no trouble seeing the shining spot (of course, someone else has to hold the laser). On the other hand, the one holding the pointer will have difficulty seeing the spot. The eternal question of range has more to do with the lights behavior on its way back to the sender than with the length of the beam. Laser Sights Laser sights for rifles and guns can be based on several different principles. Some send a laser beam parallel to the trajectory so that the point of impact becomes visible. This method exposes the marksman. Some project a red dot inside a telescopic sight (instead of cross hairs). In both cases, the dot can be produced with a ring around it. Speed Measurement Using Laser The method the police use to measure car speed is based on a laser signal that is sent towards the target. This beam bounces back and is mixed with light that has not hit the car. The result is an oscillation the same as when you tune a guitar with higher frequency (more treble) the faster the target moves. The speed has to be measured straight from the front or from the back. If it is measured at an angle, the speed is underrated. This means that you cannot get false values that are too high. The measurement is dependent on the car having something that reflects well. The license plate is perfect, as are different types of reflecting objects. Fogged surfaces are okay, but reduce the maximum distance. Laser Distance Meter The primary use of laser distance meters today is surveyors and constructors, Least spectacular is the so-called parking assistance that helps the driver to estimate the distance to the car behind when parking. A more recent application measures the distance to the car in front of the driver when driving on highways or other roads. You simply lock in the distance to the car in front of you in order to maintain that distance. This makes driving more efficient and faster as long as it all works. This kind of laser is found in most robots with mechanical vision. LASER DISCOVERIES 1971 Gabor (alone) was given the prize, having founded the basic ideas of the holographic method, which is a famous and spectacular application of laser technology. At first just a method of creating 3-D pictures, it has since become a useful tool for the observation of vibrating objects. Much of what we today know about how musical instruments produce their tones is due to the use of holograms. In addition to holograms that can be bought and hung on a wall, simpler holograms can be found on many other things where you might not expect to find them. Small holograms are present on many credit cards and identity cards in order to make them more difficult to forge. 1981 Bloembergen and Schawlow received the prize for their contribution to the development of laser spectroscopy. One typical application of this is nonlinear optics which means methods of influencing one light beam with another and permanently joining several laser beams (not just mixing them compare the difference between mixing two substances and making them chemically react with one another). These phenomena mean that a light beam can in principle be steered by another light beam. If in the future someone intends to build an optical computer (that could be much faster and much more efficient in storing data), it would have to be based on a nonlinear optic. When using optical fibers, for example in broadband applications, several of the switches and amplifiers that are used require nonlinear optical effects. 1997 Chu, Cohen-Tannoudji and Phillips et al. received the prize for their developments of methods to cool and trap atoms with laser light which is a method for inducing atoms to relinquish their heat energy to laser light and thus reach lower and lower temperatures. When their temperature sinks very close to absolute zero, atoms form aggregates (make clumps) in a way that reveals some of the innermost aspects of nature. And that is the important application of laser cooling, namely to make us understand more of nature. Very soon after the discovery other scientists started to use the technique to further develop closely related areas. 2000 Alferov and Kroemer were given the prize for their development within the field of semiconductor physics, where they had studied the type of substances that was first used to build semiconductor lasers, that is, the kind of miniature lasers that today have become the cheapest, lightest and smallest. The idea is to produce both the light source and energy supply and place the mirrors in one crystal (less than 1 mm facet, with many sequences). This has become not only the basis for many cheap and portable appliances, but also the foundation in optical information networks. The CD player, laser writer, laser pointer and the bar code reader the cashier at the supermarket uses, are all based on their discovery. REFRENCES NEWAGE PUBLISHER PVT. LTD.,LASERANDNONLINEAROPTICS,P.B LAUD macmillan publisher,laser theory and application,k.dhyacagrajan,ak.ghatak universities publishers,laser,e.a siegman http://www.nobel.org