The Crisis at Three Mile Island essays

The Crisis at Three Mile Island essays In Middletown, PA, a quiet rural community, sits the nuclear power plant at Three Mile Island, better known as TMI. It was at this station that the worst commercial nuclear accident in the country's history occurred. Early in the morning of March 28, 1979, during routine operations a false reading on a valve caused the hot nuclear core of the reactor to be without water to cool it. The operators also wrongly thought the cooling system was full. The opposite was true. The core began to melt and build up of hydrogen took place in the building that housed it. The fear was that the nuclear core would melt through the floor and contaminate all the groundwater for miles around. Also, it was feared that the hydrogen would spark an explosion which would devastate the area. Government officials struggled all day on March 28th and 29th to size up the scope of the accident. The governor ordered all pre-school children and pregnant women to be evacuated from areas in proximity to the plant. Through careful analysis, the operators and government experts were able to bring the reactor to a cold, stable, but unstable condition. By April 4th, the people who were evacuated began to return. However, life for the plant and the industry that spawned it was forever changed. Protests abounded as the cleanup began. Officials wanted to vent what they claimed were small amounts of radioactive gas. There was also strong opposition to the transport of nuclear waste from the site. A plant that had once hosted tours and ran an observation site was now off limits and patrolled by armed security forces. The value of land in the area plummeted as peopled feared contamination. Today this issue still rages within the scientific community. Government scientists claim there was no significant environmental or genetic damage to the area of its residents. Conversely, groups such as the Union of Concerned Scientist point to private studies showing an increase in...

How Neon Lights Work (A Simple Explanation)

How Neon Lights Work (A Simple Explanation) Neon lights are colorful, bright, and reliable, so you see them used in signs, displays, and even airport landing strips. Have you ever wondered how they work and how different colors of light are produced? Key Takeaways: Neon Lights A neon light contains a tiny amount of neon gas under low pressure.Electricity provides energy to strip electrons away from neon atoms, ionizing them. Ions are attracted to terminals of the lamp, completing the electric circuit.Light is produced when neon atoms gain enough energy to become excited. When an atom returns to a lower energy state, it releases a photon (light). How a Neon Light Works A neon light consists of a glass tube filled with a small amount (low pressure) of neon gas. Neon is used because it is one of the noble gases. One characteristic of these elements is that each atom has a filled electron shell, so the atoms dont react with other atoms and it takes a lot of energy to remove an electron.There is an electrode at either end of the tube. A neon light actually works using either AC (alternating current) or DC (direct current), but if DC current is used, the glow is only seen around one electrode. AC current is used for most neon lights you see.When an electric voltage is applied to the terminals (about 15,000 volts), enough energy is supplied to remove an outer electron from the neon atoms. If there is not enough voltage, there will not be enough kinetic energy for the electrons to escape their atoms and nothing will happen. The positively charged neon atoms (cations) are attracted to the negative terminal, while the free electrons are attracted to the pos itive terminal. These charged particles, called plasma, complete the electric circuit of the lamp. So where does the light come from? Atoms in the tube are moving around, hitting each other. They transfer energy to each other, plus a lot of heat is produced. While some electrons escape their atoms, others gain enough energy to become excited. This means they have a higher energy state. Being excited is like climbing a ladder, where an electron can be on a particular rung of the ladder, not just anywhere on its length. The electron can return to its original energy (ground state) by releasing that energy as a photon (light). The color of the light that is produced depends on how far apart the excited energy is from the original energy. Like the distance between rungs of a ladder, this is a set interval. So, each excited electron of an atom releases a characteristic wavelength of photon. In other words, each excited noble gas releases a characteristic color of light. For neon, this is a reddish-orange light. How Other Colors of Light Are Produced You see lots of different colors of signs, so you might wonder how this works. There are two main ways of producing other colors of light besides the orange-red of neon. One way is to use another gas or a mixture of gases to produce colors. As mentioned earlier, each noble gas releases a characteristic color of light. For example, helium glows pink, krypton is green, and argon is blue. If the gases are mixed, intermediate colors can be produced. The other way to produce colors is to coat the glass with a phosphor or other chemical that will glow a certain color when it is energized. Because of the range of coatings available, most modern lights no longer use neon, but are fluorescent lamps that rely on a mercury/argon discharge and a phosphor coating. If you see a clear light glowing in a color, its a noble gas light. Another way to change the color of the light, although its not used in light fixtures, is to control the energy supplied to the light. While you usually see one color per element in a light, there are actually different energy levels available to excited electrons, which correspond to a spectrum of light that element can produce. Brief History of the Neon Light Heinrich Geissler (1857) Geissler is considered the Father of Fluorescent Lamps. His Geissler Tube was a glass tube with electrodes at either end containing a gas at partial vacuum pressure. He experimented arcing current through various gases to produce light. The tube was the basis for the neon light, mercury vapor light, fluorescent light, sodium lamp, and metal halide lamp. William Ramsay Morris W. Travers (1898) Ramsay and Travers made a neon lamp, but neon was extremely rare, so the invention was not cost-effective. Daniel McFarlan Moore (1904) Moore commercially installed the Moore Tube, which ran an electric arc through nitrogen and carbon dioxide to produce light. Georges Claude (1902) While Claude did not invent the neon lamp, he did devise a method to isolate neon from air, making the light affordable. The neon light was demonstrated by Georges Claude in December of 1910 at the Paris Motor Show. Claude initially worked with Moores design, but developed a reliable lamp design of his own and cornered the market for the lights until the 1930s. Make a Fake Neon Sign (no neon required)

Management Essay Example | Topics and Well Written Essays - 3000 words - 5

Management - Essay Example A similar pattern of social influence was also reported by those who were identified as in-group members and as protà ©gà ©s. In-group members and mentored individuals reported greater use of expert and referent power than out-group members and non-mentored people. Further, out-group members and non-mentored individuals both reported a greater use of coercive power than did in-group members and protà ©gà ©s. Research interest in mentor/protà ©gà © relationships developed during the 1980s. It arose largely without articulated conceptual links to other topics in social/organizational psychology such as leadership, social influence, pro-social behavior, or social exchange. The first studies of this developmental relationship were descriptive and exploratory, such as Krams early research (2003) which identified two functions that mentors provide their protà ©gà ©s: career and psychosocial. More recent research (Noe, 1998a, 458) has examined the process and outcome of formal assigned mentor-protà ©gà © pairings and, in particular, the difference in outcomes between formal and naturally developing informal mentoring relationships (Chao, Walz, & Gardner, 2002, 619). Noe (1998b, 68) reviewed work on mentoring as it pertains to womens career development. He recommended clarifying the nature of the mentoring construct, suggesting several research questions about the development and effectiveness of these relationships. Noe also stated that "the use of leader-member exchange theory may further understanding of the dynamics involved in the formation of mentorships" (p. 73). Consistent with Noes recommendations, the present study was designed to investigate the convergence of mentoring relationships with another construct in social/organizational psychology: high-quality leader-member exchange (LMX). To explore the convergence of LMX and mentoring, we propose that

Research paper about lululemon Example | Topics and Well Written Essays - 500 words - 2

About lululemon - Research Paper Example The industry also has many established players such as Nike, Adidas, and GAP inc. among others. Economic factors such as increasing production costs and regulated prices across political jurisdictions are significant. Legal provisions such as intellectual property laws and political environments such as trade policies are also significant (Forgeon, et al. 38, 40). Delta Galil is one of the major suppliers. The supplier is established, with about 10000 workers and annual revenue of about one billion dollars. This suggests stability of the suppliers whose clients include Lululemon’s major competitors such as Nike. Eclat Textile company is another of the suppliers, has high revenue level and deals in Lululemon’s competitors. Workday INC is another major supplier. The suppliers are stable and deal with Lululemon’s competitors, a factor that suggests fair supplier powers, but Lululemon only commands a limited percentage of the suppliers’ revenues, and this limits its bargaining powers (Forgeon, et al. 25, 26). Lululemon’s distinct product design is one of its strengths ans allows it to develop brand image. The design also aims at establishing product quality and therefore develops a competitive advantage. The attained high quality also allows for price increase towards greater profit margins. Short lifecycle that ensures faster product inception is also strength and allows the company to respond to possible dynamic changes in the market. Research and development that focus on data from customers’ opinions is strength and allows for immediate response to customers’ changing needs (Forgeon, et al. 18, 19). The company has limited partnerships in distribution of products and this is its major weakness. Apart from its retail stores, Lululemon only deals with clubs and studios, while partnerships with other stores and franchises could facilitate more revenues. The company has significant growth opportunities in North America and

Porphyria’s Lover: Love, Sex, and Sin Essays -- Literary Analysis, Bro

Porphyria’s Lover: Love, Sex, and Sin While it is easy to say that this poem is simply a frightening and perverse account of a man who cannot properly express his feelings for a woman, it is much more complex. Two major motifs in the poem, love and sin, create a sense of contradiction. Browning uses this contradiction to explore the relationship between art and morality. The title of the poem leads the reader to believe that the speaker and the woman have been in a relationship for some time. It evokes the image of a woman secretly visiting her lover. Then, the speaker tells the reader that Porphyria â€Å"glides† into his house and â€Å"kneel’d and make the cheerless grate/Blaze up, and all the cottage warm† (6-9). Only someone who had visited the man’s home many times before would feel comfortable enough to â€Å"glide† in and start a fire. This confirms that this relationship has been ongoing and that this is not the first time the two have met. Throughout the poem, â€Å"love† is described in terms of a struggle for power, suggesting that the balance of power, dominance, and control in the relationship between this man and woman will never be equal; that one will always be vying for agency over the other and the relationship. In the beginning, Porphyria is â€Å"murmuring how she loved [the speaker]â₠¬  (21). Women of the Victorian era were supposed to stifle their sexuality and ignore it altogether. The woman in this poem makes it clear that Browning did not agree with this view. Although Porphyria has not been able to fully repress her desires, as evident in the fact that she even went to the man’s house, she is attempting to practice some restraint. Instead of shouting or even simply saying at a normal volume that she loves him, she only murmurs. T... ...cheme, ABABB, CDCDD, EFEFF, GHGHH, etcetera. While it does follow a certain pattern, the rhyme scheme is a bit unbalanced. It is heavy on the B rhymes, the D rhymes, and so on. This imbalance in rhyme adds to the thought of the speaker’s imbalance. The most striking thing about the poem’s form is that there is no shift in its sound at any point. While describing the tumultuous storm, he uses clear language. His tone does not change when the woman enters his house; he does not give the reader any indication that he is or is not happy that she is there. The reader expects some sort of change in language as the man murders the woman, but the poem remains in the same rhythmic pattern. All of these details seem small and may even be missed upon first reading the poem, but they add enormously to the thought that the speaker may be suffering from his own type of imbalance.

The simultaneous leadership in social science

Understanding the scope of drug use and addiction in the world includes knowing the prevalence among various populations and researching the many health and social consequences. The United States is both the largest producer of drug research in the world and the world’s only â€Å"drug-control superpower.†The simultaneous leadership in social science and world agenda setting is not the result of a symbiotic relationship between American research and policy making.During adolescence, friends and peers become far more influential than before, and intimate dating relationships become primary interests (Laursen & Williams, 1997).Along with these important developmental changes, however, come increased risks of pregnancy, sexually transmitted disease, and abuse by and toward dating partners (Leaper & Anderson, 1997).As well, alcohol and drug use and abuse enters the picture, which may contribute to the occurrence of the other risk behaviors (Milgram, 1993; National Center on Addiction and Substance Abuse, 1999). Although some of these developments are harmless, there is a growing awareness of the importance of education and prevention to increase teens' personal safety and responsibility.Not surprisingly, prominent adolescent risk behaviors are alcohol and drug abuse, unsafe sexual behavior, and dating violence-share many of the same contributing risk factors, although to important and differing degrees.These include problems related to the family, such as family conflict and violence, poor relationship attachment, early and persistent behavior problems, as well as peer and academic problems, such as school failure, peer rejection, and exposure to community violence. In addition to the above, teen pregnancy, early sexual intercourse, and risky sexual behaviors are associated with early onset of puberty, truancy, and delinquency (Kilpatrick, Acierno, Saunders, Resnick, & Best, 2000).In the absence of compensatory factors, such as education and social co mpetence, these varied risk factors can contribute to or become risk behaviors (e.g., alcohol use is associated with teen pregnancy and violence).Common Elements:A common family element found among teens who engage in these high risk behaviors is the amount of time spent without proper adult involvement or supervision (Dishion, Capaldi, Spracklen, & Li, 2005).Not surprisingly, children who grow up in caring and supportive homes are more likely to resist risky behaviors, while children who have grown up witnessing or experiencing alcohol abuse or violence in their homes, having poor family structure and insecure attachment-related experiences are more likely to be less resistant to these same risky, unhealthy behaviors.A description of the age, gender, and ethnic identities of youth who engage in high risk behavior is provided by the Youth Risk Behavior Surveillance, which tracks data regarding many health risk behaviors for adolescents in the United States.According to this data, bl ack youth, for example, report significantly higher rates of sexual intercourse before age 13 than do Whites and Hispanics, while White youth report the highest levels of forced sexual intercourse. Black youth also report less alcohol consumption at last sexual intercourse and higher condom use than do White and Hispanic youth.Not surprisingly, males report more alcohol use before the age of 13 than females, across all ethnic groups (YRBSS). However, these data on prevalence of self-reported adolescent risk behaviors is descriptive only, and tells little about the contextual factors contributing to such risk.While looking closer at some of the factors that may contribute to the mentioned risk behaviors, the one can see that alcohol use among teenagers remains prevalent in today's society. A national probability sample of 4,023 adolescents between the ages of 12 and 17 found that 15% of the sample used alcohol, 10% used marijuana, and 2% reported hard drug use in the past year (Kilpa trick et al. 2000).Although some alcohol consumption among adolescents is considered normative, there is great concern for the number of teens who are exhibiting signs of alcohol abuse or dependence with 7% of the above sample meeting diagnostic criteria for alcohol, marijuana, or hard drug abuse or dependence.Trends in alcohol use reported in the Youth Risk Behavior Survey indicate that binge drinking (five or more drinks on one occasion during the 30 days prior to the survey) has shown little variation over the past several years, ranging from 31.3% in 1991 to 33.4% in 1997 to 31.5% in 1999 (Centers for Disease Control, 2000). Binge drinking continues to be a problem among youth and needs to be targeted specifically.

Marketing Analysis Lululemon Manufacturers And Sells...

Introduction lululemon manufacturers and sells high quality running, yoga and training apparel. Lululemon was founded in 1998 and as of 2016 has 354 stores worldwide.Lululemon designs high end leggings that are lightweight and made to maximise comfort.They provide a wide range of colours , styles, materials and feels, to suit every individual.Different to other brands, they base their tights off feel and sensation to give the buyer a customized product. Leggings and all other products are sold exclusively in Lululemon stores only. The brand receives low cost free publicity through its brand ambassador program , which makes the brand visible throughout the community. Target Market Lululemon products are geared towards â€Å"sophisticated and†¦show more content†¦All of these things are telling you how you’re interacting with the world. For us, understanding sensation is really about understanding how your body is moving and what you make that mean†.The sensations include ;Held-in sensation , hugged sensation , naked sensation, reakaxed sensation , tight sensation. These sensations depend on the fabric used . Overall lululemon are providing a eccentric experience when a consumer is wearing their tights. The exact raw materials lululemon use to make their leggings is keep under strict confidentiality but the main fabric used is often released as it is a point of difference from other brands. The unique sensations the leggings provide all depends on the fabrics used. Lululemon employs designers that are designated to advancing fabric technology used in the creation of their leggings. These fabrics are Luon,luxtreme,swift, nulu,silverescent and nulux but no one knows how these fabrics are created or what other materials are used to prevent rival companies being able to created sensation fitted tights because it would eliminate the originality of their leggings.By employing these ingenious designers , it is an extra cost to lululemon so this also impacts the final high price the final product has. Lululemon s main competition are Nike and under armour they provide similar products that are of mid -high quality but do not include the unique fabrics lululemon produces but are well known established andShow MoreRelatedLululemon Business Strategy2016 Words   |  9 Pagesï » ¿ Lululemon was founded by Chip Wilson who took a commercial yoga class in Vancouver and was immediately drawn in to the concept. After spending many years in the surf, skate, and snowboarding business, he found yoga was performed using cotton clothing and this seemed inappropriate because it neither removed sweat adequately nor did it allow for maximum flexibility. Given his passion and expertise in technical athletic fabrics, he began a movement in yoga clothing where he relied on feedback fromRead MoreLululemon Athletica Inc.: Annual Report44040 Words   |  177 Pages1934| For the fiscal year ended January 29, 2012 OR     ¨ |TRANSITION REPORT PURSUANT TO SECTION  13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934| For the transition period from  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  to  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Commission file number 001-33608       lululemon athletica inc. (Exact name of registrant as specified in its charter)    ||| Delaware|  |20-3842867| (State or other jurisdiction of incorporation or organization)|  |(I.R.S. Employer Identification Number)| ||| 1818 Cornwall Avenue Vancouver