Friday, January 31, 2020
Psychology Essay Example | Topics and Well Written Essays - 500 words - 40
Psychology - Essay Example eeling and 1ehaviour of individuals are influenced by the actual, imagined or implied presence of other human beings.†In other words, the concept itself talks about the mindset of a crowd of people living in a particular environment, brought up in a particular manner and dealing with everyday situations the way that they feel best, however, at the same time, their thoughts may not be compatible with people belonging to a different society. The main aim of this subject is to understand various topics like social behaviour, individual conformity to a group of peers, as well as emotions that one experiences like aggression or prejudice towards something. Understanding social interaction is very important because it forms the basis of human relationships; only when one is able to understand the thinking of another will he be able to act in an appealing manner to be accepted by that person. This is a subject that is prevalent in all streams and aspects of the world; may it be education, work or a personal life, it is pertinent to understand social behaviour in order to comprehend the social psyche of an individual and act in a befitting manner. It cuts across all other subjects especially other disciplines of sociology itself because it aims to decipher people’s notions and apply it to daily living. The interesting thing about this subject is that it focuses not on a particular individual and his characteristics or traits but on a group of such people and their collective behaviour while being part of a bigger picture and being caught in a different situation. People often manipulate their emotions and conduct in order to fit into various situations and feel comfortable in various circumstances and thus this subject assists in breaking down the psyche of an individual with respect to the entire social surrounding or setting and finding out where he or she may be going wrong with respect to their own identities. Social psychologists thus focus on situations that
Thursday, January 23, 2020
Good Things About Oregons New Driving Law :: essays research papers
                                                  Oregon’s new driving law is going to make a major difference The new law changes the ages of becoming a fully licensed driver. The new program goes in three steps instead of two like the current program. It works like this: When a potential driver is 15, he can get his learners permit. He must have a licensed adult with him at all times while driving. When he turns 16, he can get a license that only allows him to drive during the day and never with any other teenagers in the car when by himself. Then, when he turns 18, he can get a full license. The law is designed to foster the development of maturity in teens, , and the new law has worked successfully in other states.      The new driving program is made to fit the maturity level of teens better than the current one. It gives teens a chance to learn to drive, but during the period of time in a teens life that causes, cuts out some of the most major distractions that cause accidents like night driving and when there are other teens in the car. This, many lawmakers believe, should help reduce the number of accidents and car-related deaths drastically. Many young drivers, like myself, hope it will help lower the price of insurance so that we will have a little more money in our pockets for the future. This is one reason why the new law is going to make driving safer.      Another big distraction eliminated with Oregon’s new driving law is the presence of other teenagers in the car. Studies have shown that the chance of an accident by a teen driver is greatly increased with the presence of teen passengers. The main theory behind that is that teens like to show off to their piers and in so doing so can kill them because of inexperience or plain stupidity. Many politicians, lawmakers, and drivers hope this will help eliminate a fair amount of the wreckless driving that takes too many peoples lives each year.      Another hopeful sign of the new law is that it has already been used in other states showing promising results. Car-related teen deaths and accidents dropped a significant amount in other states like Georgia and South Carolina. Many people are looking forward to seeing those same results here.      Many teens don’t agree with the new law because they want to get their drivers licenses
Wednesday, January 15, 2020
Identifying the science involved in nuclear fusion Essay
Both windings of the transformer is what the current is induced from to heat up the plasma. Although this type of Ohmic heating technique can heat plasmas into temperatures of around 20-30 million Kelvin, it is not quite effective because the amount of heat generated depends on the resistance between the plasma and the current (the Joule Effect which states that the amount of electrical energy produced is dependent upon the resistance of the substance through which electricity is passing). The reason for the ineffectiveness of Ohmic heating from the Joule effect principle is because at temperatures of over 1 million degrees centigrade, the electrical conductivity of the plasma is very high which means that there is very low resistance. In needing higher temperatures for larger fusion reactions to occur, other methods of plasma heating are introduced to enhance the Ohmic heating technique (in order to reach higher temperatures for bigger scaled fusion reactions to occur). Neutral Beam Heating: This is an enhancing plasma heating technique of ohmic heating whereby accelerated neutral beams of deuterinium or tritium ions are injected into the already heated plasma. The beams of ions carry large kinetic energies and are neutralized in order for easier access through the magnetic fields confining the plasma. When these beams are injected into the plasma, electrons are lost and the nuclei become ionized due to high temperature particle collisions (making them positively charged ions). â€Å"In the series of subsequent ion-ion, ion-electron and electron-electron collisions, the group velocity of beam ions is transferred into an increased mean velocity of chaotic motion of all plasma particles†. This results in the neutral beam of ions heating up the pre heated plasma and increasing it’s temperature by a maximum of 21MW. http://www. jet. efda. org/pages/focus/006heating/index. html#ohmic Lower Hybrid Current Drive: This additional pre-heating technique is a process whereby micro electromagnetic waves of up to 10MW propel charged particles in a plasma at 3. 7GHz of cycles per second to produce currents of up to 3MA which increases plasma temperature. http://www. jet. efda. org/pages/focus/006heating/4c. jpg Radiofrequency Heating: This type of plasma heating technique is also known as Ion Cyclotron Resonant Heating (in a more scientifical understanding). It is a process whereby the antennae in the vacuum vessel of the tokamak â€Å"propagate waves in the frequency range of 25-55 MHz into the core of the plasma to increase the energy of the ions†thus increasing the temperature for more fusion reactions to occur. This heating method provides additional energy of up 20MW of power t http://www. jet. efda. org/pages/focus/006heating/index. html#ohmic Magnetic Confinement Of Plasma A magnetic field is defined as a force produced by moving electric charges or currents that exerts a power on other moving charges. Because the incredible temperature of plasma (which is over 100 million i C) inside the tokamak cannot be contained inside the inner vessel walls of the nuclear reactor alone, the use of magnetic fields gives an alternative technique in actually restraining the high temperature plasma particles from touching the walls of the reactor. This is called confinement. The reason why plasma is restrained from touching the walls of the reacting vessel is that it cools down very rapidly and terminates itself at once when contact is made. A plasma is made up of ionized particles. In the absence of magnetic fields, the ionized particles move in straight lines and in random directions. This eventually leads to contact with the inner chamber walls of the reacting vessel and results in the plasma quickly cooling down and terminating itself. But when a constant presence of a magnetic field is introduced, the ionized particles in the plasma flow through these fields in a spiral path on the magnetic lines. The movement of the particles across the magnetic field lines are restricted and this also prevents contact to the walls of the containment vessel. Below is a picture illustrating the movement of charged particles with and without the presence of magnetic fields: . http://www. plasma. inpe. br/LAP_Portal/LAP_Site/Text/Plasma_Confinement. htm On the torus, there two main components of magnetic fields used. The main type of magnetic field used in the plasma confining process is the toroidal field. This is a field whereby 32 large (D-shaped) coils surround the vacuum vessel of the nuclear reactor and when current flows around these coils, a toroidal magnetic field is generated which controls the position of the plasma inside the torus and also modifies the poloidal field (the second magnetic field). The other magnetic field (the poloidal field) is produced by current being flown through the plasma which is initially induced from transformers. The created poloidal field with the combination of the toroidal field confines the plasma well and stabilizes it which allows confinement times of plasma temperatures to be longer. . http://www. fys. uio. no/plasma/plasma/norsk/tokamak. gif Limitations Of The Jet Fusion Tokamak The foremost limitation on the Jet fusion tokamak is the small amount of time the plasma lasts for inside the reactor. This is because of the plasma being continuously cooled down by tiny impurities inside the chamber walls. Also, the efficiency of the fusion reaction inside the nuclear reactor is quite an important aspect of limitations that has a need to be solved. This is because large amounts energy are put in initially just to start the fusion reaction at a plasma state and only half the energy is acquired when fusion is completed. On a typical Jet experiment, 30MW of energy is the power input used and only 16MW of energy is successfully extracted out from the reactor as power output . From an efficiency equation (Pout / Pin), this gives an efficiency of 53. 3% . Another important limitation of fusion reactions inside the tokamak reactor is the instability of the plasma that has a need to be controlled. This is because of excited and charged particles inside the plasma wanting to escape as they are being compressed into higher temperatures. Although this is controlled by the use of magnetic fields, the slightest error in confining these charged particles could result in the plasma escaping and quickly cooling down and thus all the total energy put initially put into the reaction being wasted. Also if the plasma escapes, this results in it touching the inner walls of the tokamak and eroding or damaging the components surrounding the plasma and by therefore reducing the lifetime of these components. Although these problems or limitations cause less energy efficiencies inside the tokamak, modern day advances of computer aided technology is gradually providing remedies in sorting these limitations out. Future Developments. From my knowledge of future developments in nuclear reactors, experimental studies which is currently being carried on the JET experiment is believed to provide some detailed background information in acquiring similar basic properties in the building process of ITER.. Currently, The JET experiment holds the world record for released fusion power at 16 million Watts (16MW). This is â€Å"a value comparable to the power needed for heating one thousand households in a cold winter. †http://www. jet. efda.org/pages/focus/010jetanditer/index. html#overall In future developments, it is predicted that the ITER experiment which is estimated to finish construction at the end of year 2006 in France would release an amazing fusion power of 500 Million Watts. This, by my accurate calculations, is enough to power up to 31,250 homes on a cold winter night. The future properties of ITER when construction is finished is going to be entirely based around a hydrogen plasma torus which would operate at temperatures of above 200 Million i C and also by the use of super conducting coils to generate high temperature plasmas which would yield better energy efficiencies give more energy outputs. In the size of ITER’s components compared to the current JET nuclear reactor, ITER is estimated to be 10 times bigger than JET in size. Bibliography Books Name Of Book Authors Name ISBN Number Name Of Publisher’s Year Of Publishment Understanding Physics For Advanced Level (Second Edition) Jim Breithaupt 0-7487-0510-4 Stanley Thornes Publishers Ltd 1990 Salters Horners Advanced Physics Heinimann 0435 628909Heinimann Educational Publishers 2000. Internet 1) http://www. jet. efda. org/images/gallery/images/82-348cmed. jpg. 2) http://www. plasma. inpe. br/LAP_Portal/LAP_Site/Text/Plasma_Confinement. htm 3) http://www. sbf. admin. ch/htm/international/org/fusion-e. html 4) http://europa. eu. int/comm/research/energy/fu/fu_rt/fu_rt_mc/article_1227_en. htm 5) http://www-fusion-magnetique. cea. fr/gb/fusion/principes/principes01. htm 6) http://www. jet. efda. org/pages/focus/006heating/index. html#ohmic 7) http://www-fusion-magnetique. cea. fr/gb/fusion/principes/principes01. htm.
Tuesday, January 7, 2020
Steroids Is The Single Most Abused Performance Enhancing...
Steroids are the single most abused performance-enhancing substance in the history of sports. As popular as the drug may be, the DEA listed anabolic steroids as a controlled substance under the Controlled Substance Act in 1990: meaning steroids can only be prescribed by a medical professional (Parks 12). Steroids are not only creating a poor image of professional sports, they also set a terrible example for the athletic, competitive youth of this generation. Children venerate their role models - like Mark McGwire and Barry Bonds - and think the only way to be as successful as they are is to do as they do: use steroids. What the youth are too naà ¯ve to consider is that steroids do not improve agility, skill or cardiovascular capacity, and can prematurely stunt growth and destroy the liver of adolescents (ESPN). While the effects on the youth cannot be ignored, the everlasting effects on sports themselves leave a tarnished sense of distrust. Dr. Paul Finkelman stated, â€Å"Steroids undermine the integrity [of the game] by placing in doubt the skill of players, as fans assume that homers are hit because of steroids, not skill†(ProCon). The problem with making a stricter Performance Enhancing Drug (PED) testing policy is that if one substance becomes too recognizable, there will always be new, untested drugs which can cause more harm to one’s body than steroids ever would (Ropp). Random drug testing has proven successful in the past, but tests are very expensive and can sometimes beShow MoreRelatedPerformance Enhancing Drugs in Sports527 Words  | 2 PagesThe use of performance-enhancing steroids in sports is forming a problem. The sports that they play end up being cheated by these frauds. This is a disgusting epidemic. For example, â€Å"The National Institute on Drug Abuse (NIDA) recently estimated that over half of a million 8th through 10th grade students are abusing AAS, and that many high school seniors do not believe their use constit utes a health risk†(steroidabuse.com). The problem exists in professional sports and below. Steroid use in sportsRead MoreHow Society Is Affected By Drug Usage In Sport?1540 Words  | 7 PagesDrugs have been a problem in our society for years. They have been used and abused by many groups, including amateur and professional athletes. Drugs are also used for recreational use not just for performance enhancement. Society is directly influenced by the usage of drugs in sport. A study in 2002 showed that An estimated 3 million people aged 15 or older reported that they used marijuana or hashish at least once in the year before the survey This shows that 12.2% of all Canadians either haveRead MoreThe Use of Steroids in Professional Sports Essay1499 Words  | 6 PagesThe Use of Steroids in Professional Sports They’re among the world’s most controversial drugs. Not Heroin, Ganja, Coke or Crystal Meth, but Anabolic Steroids. Steroids are medical treatments that come in two varieties: Anabolic Steroids and Corticosteroids. These are both synthetic versions of hormones produced naturally in the body but they perform two completely different tasks. Corticosteroids are used by doctors to decrease inflammation. Anabolic Steroids are the familiar term for the syntheticRead MoreSteroids Abuse in Baseball1746 Words  | 7 PagesSteroid Abuse Hurts Baseball The abuse of steroids among players in Major League Baseball is corrupting the image of Americas Pastime as well as endangering the health of those who use the illegal substances. The lack of testing and punishment for the use of illegal substances like steroids in the Major Leagues portrays a negative image to aspiring young athletes. They see their role models using steroids and becoming better athletes rather than seeing suspensions for the illegal behavior orRead More Steroid Abuse Hurts Baseball Essay1701 Words  | 7 PagesSteroid Abuse Hurts Baseball      The abuse of steroids among players in Major League Baseball is corrupting the image of America?s Pastime as well as endangering the health of those who use the illegal substances. The lack of testing and punishment for the use of illegal substances like steroids in the Major Leagues portrays a negative image to aspiring young athletes. They see their role models using steroids and becoming better athletes rather than seeing suspensions for the illegal behaviorRead More Use of Performance Enhancing Drugs in Sports Essay2025 Words  | 9 PagesThe use of performance enhancing drugs in sports (doping) is done to improve athletic performance. Doping in sports has become a highly controversial topic among professional sporting venues and in the media. With the increased pressure to perform, high priced contracts, increased competition, and advanced training methods today’s athletes will try to gain an edge by any means necessary. Performance enhancing drugs used by athletes today include Human Growth Hormone (HGH), anabolic steroids, peptideRead MoreThe Development of Anabolic Steroids in Sports Essay2058 Words  | 9 Pagestestosterone-propionate, a specific form of testosterone, was first used by the soviets to improve athletic performance. This led to the Soviets dominance in the olympics in the 60’s. From then on the evolution of performance enhancing drugs expanded exponentially and in turn the use increased dramatically. Other athletes began to follow in the Soviet Union’s steps by implementing performance enhancing drugs into their training regimen in order to compete with the soviets. In 1972 the olympic communityRead MoreEssay on The Use of Steroids in Major League Baseball3073 Words  | 13 PagesThe Use of Steroids in Major League Baseball He walked into his hotel bathroom and cautiously closed the door. Clanging his 60 lb. dumbbell against the floor, he set his travel bag full of needles on the counter. While filling his syringe with THG, he began to think about the consequences of his actions; it is a serious problem, but he doesnt have the willpower to give up the success rewarded from it. As the needle slowly penetrated through the skin and half way through his muscle, he unloadedRead MoreOutcome 1 Know the Main Forms of Mental Ill Health2124 Words  | 9 Pagesthe external expression observed by others. Two groups of mood disorders are broadly recognized; the division is based on whether amanic or hypomanic episode has ever been present. Thus, there are depressive disorders, of which the best-known and most researched is major depressive disorder (MDD) commonly called clinical depression or major depression, and bipolar disorder (BD), formerly known as manic depression and characterized by intermittent episodes of mania or hypomania, usually interlacedRead MoreEssay on Tour de France Drug Abuse4746 Words  | 19 Pagesimage of other sports. The media response to the scandal took differing positions on what should be done next to clean up cycling. The scandal also affected advertisements, sales, and without question the 1999 Tour and Lance Armstrong. Since even the most naà ¯ve fan no longer trusts the cyclists, drug-testing procedures have been instituted. Also, the question now arises regarding medications used by seriously ill cyclists. Certainly, future Tours will be significantly affected. The Union Cycliste Internationale
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