Saturday, January 25, 2020

Analysis of Reasons for Banning Nuclear Power

Analysis of Reasons for Banning Nuclear Power Nuclear Power Should Be Stopped In Japan Electricity is necessary for life. Most items need electricity. There are many kinds of natural resources, such as oil, coal, and fossil fuels in the world. However, there is a limit on consuming these resources. Electricity also can be produced by many methods, such as thermal power, wind power, solar power, geothermal electric power, and hydroelectric power. Each country uses different methods to get electricity. Some countries focus on cost. Other countries focus on carbon emission or damage to humans when accidents happen. In Japan, many methods are being used. There are seventeen nuclear power plants and these are helpful to generate electricity because nuclear power can produce huge amounts of electricity at once. However, nuclear power also has disadvantages. When the Tohoku earthquake occurred on March 11 2011, Fukushima Daiichi Nuclear Power Plant in Japan was broken. Thus, people who live in Japan had a limit of spending electricity. Nuclear power plants should be stopped i n Japan because it creates the possibility of radioactive accidents, gives humans cancer, and pollutes air, soil, and water. The main reason for nuclear power plants to be banned in Japan is that nuclear power creates the possibility of radioactive accidents. On March 11 2011, the Tohoku earthquake and tsunami happened. Fukushima Daiichi Nuclear Power Plant in Japan was broken by this earthquake. Even workers who work at the Tokyo Electric Power Company could not control nuclear power plants at that time. This accident was managed by Nuclear Regulatory Commission. They wrote a document which listed the Fukushima Daiichi Nuclear Power Plant as one of the most trouble-prone nuclear facilities in Japan. (Wang and Chen 2611) This shows that nuclear power plants create the possibility of radioactive accidents, and gives people fear. Therefore, this is terrible to use for electricity. Even now, many people who live around Fukushima Daiichi Nuclear Power Plant cannot go back to their town. There are more than 90,000 residents, who were evacuated from areas surrounding the Fukushima Daiichi Nuclear Power Plant. (Cuttler 1) â€Å"The total amount of released radionuclides has been estimated to be 520 PBq (excluding noble gases); for releases of 137Cs, estimations are about 12 PBq, which is about 15% of that released at Chernobyl.† (Higaki et al. 1) Radionuclides which were released from Fukushima Daiichi Nuclear Power Plant were spread out from Fukushima to Kanto area. Air, soil, and water were polluted directly. Although 15% of that released at Chernobyl, radioactivity which was released by nuclear power plants was higher percentage than average. â€Å"Availability of cooling water has been one of the major issues in the selection of nuclear power plant sites.†(Zhao et al. 41) When a radioactive accident happened in Japan, sea water was used for coolin g down.[1] The water which was used for cooling down was contaminated and leaked. As a result, vegetables, fish, and livestock were polluted indirectly by contaminated soil and water. This shows that radioactivity can spread out quickly. â€Å"After the Fukushima nuclear accident from the 17th March 2011 to the 31st March 2012 the Japanese Ministry of Health, Labour and Welfare set a provisional regulatory value of 500 Bq/kg (fresh weight basis) for radiocesium (134Cs and 137Cs) in vegetables and crops.†(Higaki et al. 1) Prefectural government and the Ministry of Health, Labour and welfare serveied food safety and reported. â€Å"Products including spinach, mushrooms, bamboo shoots, tea, milk, plumes, and fish have been found to be contaminated with cesium and iodine as far as 360 km from Fukushima Nuclear Power Plant.† (Zheng, Tagami, and Uchida. 1-2) However, food which is made in near Fukushima and did not find radioactivity was criticized. For example, the north pa rt of Japan is a great place to grow rice, yet rice was not bought because rice might be contaminated. Thus, this accident gave farmers who live in the north part of Japan economic damage. Possibly, if people eat food which contains radioactivity, they are exposed to radiation. Likewise, humans were contaminated. Many people were killed by not only an earthquake but also radiation exposure. Humans absorbed radioactivity both directly and indirectly from air, soil, and food. Radioactivity causes cancer, such as leukemia. On August 6 1945, an atomic bomb was dropped in Hiroshima. This bomb also gave humans radiation exposure. This tragedy happened 70 years ago. Nonetheless, many people who experienced this tragedy was dropped is suffering from radiation exposure. â€Å"When most or all of the human body is exposed to a single dose of more than 1 Gy of radiation, acute radiation sickness can occur† (Christodouleas et al. 2337) This means that even a small amount of radioactivity can give humans radiation sickness. Clinicians have been interested in x-ray exposure during pregnancy since the 1950s, and they reported an approximately 40% increase in the risk forms of radiation, for instance CT scan, fluoroscopy, or mammography. (Smits and Dolores 441) Radi oactivity is used for diagnosis at hospitals. The radioactivity which is used at hospitals should be safe. Nevertheless, even at hospitals, radioactivity can be dangerous. If pregnant mothers are examined by CT scans, fluoroscopy, or mammography, unborn babies may get trouble. For these reasons, radioactivity is dangerous and harmful for health. On the other hand, some people prefer to use nuclear power plants because they are ecofriendly. â€Å"World Nuclear Association and International Atomic Energy Agency (IAEA), contend that nuclear power is a sustainable energy source that reduces carbon emissions.† (Bhasin and Aparna 1) Thermal power plants release carbon dioxide instead of radioactivity. This mean nuclear power plants can help to prevent global warming. â€Å"Energy installations, especially thermal power plants that use coal as a fuel, can influence the environment, sometimes leading even to ecological balance damage within areas where they are located, so that the energy field be considered as the main pollution source.† (Costel 1) If carbon emissions are focused, nuclear power plants are better than thermal power plants. â€Å"A large number of studies have illustrated the public concern about the adverse effects of mobile phone radiation and possible health hazards.† (Marica, Luinica and Lumi nita 561) Not only nuclear power plants, but also some electricity, such as cell phones release radioactivity. â€Å"Human populations have always been exposed to ionizing radiation from natural sources.† (Pehlivanglu and Kilincarslan 275) This means that there is radioactivity in the air already before why radiation accidents. In addition, radioactivity is used for medication, such as CT scans, and radiotherapy. Radioactivity causes cancer, whereas it is also effective to cure cancer. â€Å"The report, released by the UN Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) warns that the damage caused by stress and worry over radiation will likely cause much more damage than the radiation itself.†(ASIA 1) The Majority of people think that cancer risk was increased by radioactivity. However, some people think the reason cancer risks increased is not only radioactivity. People who live in Fukushima were under stress because people could not get exact information. When the earthquake happened, media, internet, phone services, and transportations were confusing. Cancer risk was increased by not only radioactivity, but also stress. Nuclear power plants can be hazardous weapons. â€Å"Fukushima is an eerie replay of the denial and controversy that began with the atomic bombings of Hiroshima and Nagasaki.† (Perrow 56) Japan is only one country that suffered an atomic bomb attack. Accordingly, Japanese people tend to already know how much radioactivity is dangerous. They also notice that they cannot control nuclear power plants if radioactive accidents were to happened. â€Å"The nuclear disaster in the Japan nuclear power plant Fukushima Daiichi has reminded the importance of proofed and reliable systems used in the active or passive mode for application in case of serious nuclear accident†. (Maar and 81) The radioactive accident that happened in Fukushima warned that nuclear power plants creates the possibility of radioactive accidents. Nuclear power plants can be ecofriendly because carbon emission is low. Nuclear power plants produced 13% of all electricity in the world in 2008. (Islam and Ahiduzzaman 26) In Japanese case, 30% of electricity was produced by nuclear power plants before happening the earthquake. (Wohns 5) Most electricity is being made by other ways in the world. However, Japan count on nuclear plants. Japan can get technology from other countries. Furthermore, Japan can use alternative energy. Alternative energy is energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels and nuclear power. (Oxford d[2]ictionary) Examples of alternative energy are solar energy, biomass energy, wind energy, and geothermal energy. In Japan, solar energy has been becoming common. Solar panels are attached on each house roof. Solar power plants release 40 g/kWh and nuclear power plants release 30 g/kWh. (Murphy and David 522) These two amounts are lower than other power plants. One of benefits of solar power plants is that if electricity which is made by solar power plants so not use everything, the electricity can sale to power company in Japan. In my case, my house has solar panels on roof. The panels can produce electricity for whole my house. Moreover, a few of electricity can sale to power company, so my house does not buy electricity from power company. Solar power plants can replace with nuclear power plants. Some people said that cancer was caused by not only radioactivity but also stress. This opinion could be true. However, after leaking out radioactivity by accidents, such as Chernobyl, Hiroshima, Nagasaki, and Fukushima, cancer rate was increased. â€Å"In the Ukraine, children were born with deformities and developed cancer; today, most children there still[3] develop leukemia at an early age.† (Robertson 11) This result shows radioactivity gives humans huge impacts. It also shows children are exposed indirectly. â€Å"In pregnancy, the diagnosis of pulmonary embolism (PE) is problematic.† (Nijkeuter et al. 1857) This shows that radioactivity which is used at hospital is also can expose fetus indirectly. Aftereffects which are caused by radiotherapy are known. Although radiotherapy is effective for cancer, patients get damages, such as nausea or fallen hair. â€Å"People are always exposed to ionizing radiation, which could badly influence their health.† (Samadi , Bahman, and Nima 52) this means that radioactivity already exists in the air without radioactive accidents, but the radioactivity is not huge amounts. However, if radioactive accidents happen, radioactivity is leaked in the air. After leaking radioactivity, the amount of radioactivity should be more than the average amount which exits in the air. In conclusion, nuclear power plants can be dangerous when radioactive accidents happen because, air, soil, food, and water are contaminated by radioactivity directly and indirectly after accidents happen. Moreover, radioactivity can cause cancer. For these reason, nuclear power plants should be stopped in Japan. Works Cited ASIA. No Cancer Increase After Fukushima UN. TCE: The Chemical Engineer 876 (2014): 17. Academic Search Complete. Web. 23 July 2014. Bhasin, Amit, and Aparna, Ahuja. Harnessing Nuclear Energy: Health Risks. Indian Journal Of Medical Specialities 2.1 (2011): 46-53. Academic Search Complete. Web. 19 July 2014. Costel, Alic. Laurean, Marinel, Manea. Traian, Vasiu. Gheorghe, Dobrei. Environmental Impact Due To Use Of Coal In Mintia Thermal Power Plant. Revista Minelor / Mining Revue 19.1 (2013): 2-7. Academic Search Complete. Web. 20 July 2014. Cuttler, Jerry M. Commentary On The Appropriate Radiation Level For Evacuations. Dose-Response 10.4 (2012): 473-479. Academic Search Complete. Web. 23 July 2014. Higaki T, Higaki S, Hirota M, Hasezawa S. Radiocesium Distribution In Bamboo Shoots After The Fukushima Nuclear Accident. Plos ONE 9.5 (2014): 1-9. Academic Search Complete. Web. 17 July 2014. John P. Christodouleas, M.D., M.P.H., Robert D. Forrest, C.H.P., Christopher G. Ainsley, Ph.D., Zelig Tochner, M.D., Stephen M. Hahn, M.D., and Eli Glatstein, M.D. Short-term and long term health risks of nuclear-power-plant accidents. New England journal of medicine 364.24 (2011): 2334-2341. Academic Search Complete. Web. 22 July 2014. Marica, Lucia, and Luminita Moraru. Study Regarding Electromagnetic Radiation Exposure Generated By Mobile Phone. AIP Conference Proceedings 1400.1 (2011): 560-564. Academic Search Complete. Web. 23 July 2014. Maar, Tomas, and Jiri Martinec. Possibilities Of Vapour Condensation And Heat Accumulation Systems For Loca Accidents In Nuclear Power Plants. Annals Of The Faculty Of Engineering Hunedoara International Journal Of Engineering 12.2 (2014): 81-84. Academic Search Complete. Web. 24 July 2014. Murphy, Patrick, and David J. Browne. Solar Energy: Competitive On Carbon Emissions?. Engineers Journal 62.9 (2008): 550-555. Academic Search Complete. Web. 28 July 2014. Nijkeuter, M.,Grlrijns, J, De Roos , A, Meinders, E, and Huisman, M. Diagnosing Pulmonary Embolism In Pregnancy: Rationalizing Fetal Radiation Exposure In Radiological Procedures. Journal Of Thrombosis Haemostasis 2.10 (2004): 1857-1858. Academic Search Complete. Web. 28 July 2014. Pehlivanogl, F., and S Kilincarslan. Determination Of Natural Radioactivity In Aggregates From Western Mediterranean Region. Acta Physica Polonica, A 125.2 (2014): 275-277. Academic Search Complete. Web. 21 July 2014 Perrow, Charles. Nuclear Denial: From Hiroshima To Fukushima. Bulletin Of The Atomic Scientists 69.5 (2013): 56-67. Academic Search Complete. Web. 24 July 2014. Robertson, Naomi. Harnessing The Power Of Radioactivity. Young Scientists Journal 4.9 (2011): 10-12. Academic Search Complete. Web. 28 July 2014. Sadrul Islam, A. K. M., and M. Ahiduzzaman. Biomass Energy: Sustainable Solution For Greenhouse Gas Emission. AIP Conference Proceedings 1440.1 (2012): 23-32. Academic Search Complete. Web. 24 July 2014. Samadi, Mohamad Taghi, Bahman GolzarKhojasteh, and Nima Rostampour. Indoor Natural Radiation Level In Hamadan Province, 2012. (English). Journal Of Mazandaran University Of Medical Sciences (JMUMS) 23.99 (2013): 52-59. Academic Search Complete. Web. 28 July 2014. Smits, Ariel K., Heather L. Paladine, and Dolores Zegar Judkins. What Are The Risks To The Fetus Associated With Diagnostic Radiation Exposure During Pregnancy?. Journal Of Family Practice 55.5 (2006): 441-444. Academic Search Complete. Web. 23 July 2014. Wang, Qiang, and Xi Chen. Regulatory Failures For Nuclear Safety – The Bad Example Of Japan – Implication For The Rest Of World. Renewable Sustainable Energy Reviews 16.5 (2012): 2610-2617. Academic Search Complete. Web. 17 July 2014. Wohns, Anthony. Fukushimas Lessons For Boston: Debating The Future Of Nuclear Energy. Harvard International Review 35.3 (2014): 4-5. Academic Search Complete. Web. 28 July 2014. Zhao, Haihua. Zhang, Hongbin, Sharpe, Phil, Hamanaka, Blaise, Yan, Wei., and Jeong, WoonSeong. Ice Thermal Storage Systems For Nuclear Power Plant Supplemental Cooling And Peak Power Shifting. Journal Of Energy Engineering 139.1 (2013): 41-47. Academic Search Complete. Web. 23 July 2014. Zheng, Jian, Keiko Tagami, and Shigeo Uchida. Rapid Analysis Of U Isotopes In Vegetables Using ICP-MS: Application To The Emergency U Monitoring After The Nuclear Accident At TEPCOs Fukushima Dai-Ichi Power Station. Journal Of Radioanalytical Nuclear Chemistry 292.1 (2012): 171-175. Academic Search Complete. Web. 19 July 2014. [1]incomplete sentence [2]capitalize [3]misspelling

Friday, January 17, 2020

The Effects of Obesity in Adults

In today's society overeating can create a vast amount of changes, that may affect lifestyles of daily living. According to CDC, more than one-third of U.S. adults were obese in 2011-2012. The effects of obesity can lead a person down a road, which can be hard to manage in life. A BMI of 30 is about 30 lb overweight and equivalent to 221 lb in a 6'0†³ person and to 186 lb in one 5'6†³ (American Journal). The National Institutes of Health (NIH) now defines normal weight, overweight, and obesity according to BMI rather than the traditional height/weight charts (NIH). People with a body mass index of 30 or more are considered obese, and those with a B.M.I. of 40 or more are severely obese (NYTimes). Obese individuals have a high risk for chronic health conditions and complications. To name a few: hypertension, cardiovascular disease, knee / joint problems, psychological issues, diabetes, and death. Obesity is a measure by body mass index, which is determined by height and weight. If a person gains between 10-20 pounds they are at a high risks of hypertension (OAC). As you gain weight, so does stress throughout the body which causes hypertension. The more food and drink a person consumes in turn will increase their sodium level. Due to the increase of sodium and fat into the diet the endocrine system is forced to compensate and can result in an increase in blood pressure. Hypertension is a chronic condition caused by an increase in blood pressure and is a common complication for obese patients.Abdominal distention is a common complication due to layers of fat that have accumulated on top of muscle. The abdominal wall compressing against the diaphragm causes discomfort for an obese patient and also limits sleeping positions. Sleep apnea is another common complication of obese patients due to the softening of the tissue in the mouth and throat causing the airway to be obstructed. Many of these patients must be placed on a bipap machine while they sleep to help regulate their breathing. Obesity is also associated with knee and joint issues. Increase weigh strains the body, as a person tries to walk with additional weight. Ideal body weight is classified as 50 kilograms for 5 ft. Anything past 5ft is multiplied by 2.3 + 50 to get ideal body weight. For example; a 6'0 ft person ideal body weight would be 50 + 2.3 x 12 equals 77.6 kilograms. Any weight above the average weight is considered obese. Over time the tissues and connective tendons become damaged from the strain of the weight that is bearing down on the knee. Being only 10 pounds overweight increases the force on the knee by 30-60 pounds with each step (John Hopkins). Being overweight increases, the load placed on the joints such as the knee, which increases stress and could possibly hasten the breakdown of cartilage (John Hopkins). Clearly increase weight does have significant impact on walking, causing fatigue, and joint / knee issues.Psychological consequences of being overweight or obese can include lowered self-esteem and anxiety, and more serious disorders such as depression and eating disorders such as binge eating, bulimia and anorexia (MentalHelp). Obese people are made fun of and looked down upon. Obese people have less energy, due to taking more momentum to get their body going. More weight means more force needed to get moving. Hollywood paints an image that everyone around is thin. When it comes to obese people there's a tendency for depression, trying to compare with society. While being depressed obese people have a tendency to want to eat more and lay around doing nothing. Within that mind state leads to eating more and gaining additional weight. Over time, even ordinary tasks of daily life like going up a flight of stairs can lead to exhaustion and a sense of premature aging (Mentalhelp). Diabetes is another consequence associated with being obese. Obese people have a tendency, to eat more sweets, and carbohydrates that turn into glucose. People who are overweight or have obesity have added pressure on their body's ability to use insulin to properly control blood sugar levels, and are therefore more likely to develop diabetes (Obesity Society). Obese people are at high risk of developing type 2 diabetes. Type 1 diabetes, which often occurs in children or adolescents, is caused by the body's inability to make insulin or type 2 diabetes, which occurs as a result of the body's inability to react properly to insulin (insulin resistance). Type 2 diabetes is more prevalent than type 1 diabetes and is therefore seen in roughly 90% of all diabetes cases (Obesity Society). Compared with normal-weight adults, obese adults had at least 20% significantly higher rate of dying with cardiovascular disease (NIH). Plaque builds up due to more fats in diet, which leads to coronary artery disease. As the buildup continues throughout duration of life, so does blockage in the coronary arteries. A block in the coronary arteries with cause decrease cardiac output. With the decrease in blood flow, cardiac tissue death starts to form. Blockage in the heart creates myocardial infarction. Prolong tissue necrosis will lead to cardia death, resulting in death itself. For CVD, death was advanced by 10.3 and 12.8 years in adults aged 45 to 64 years categorized as grades II and III obese (Luisa N. Borrell). Obesity can cause a lot of issues that can be detrimental to activities of daily living. Just as a little of increase weight, the body starts to break itself down. While, normal healthy adult weight is less than BMI of 26, and obesity is anything above BMI 30. A little increase in weight can be life altering. The activities daily living related with obesity decreases in an adult's life. Several different diseases are involved with obesity, most can be cured with just a minor decrease in weight.

Thursday, January 9, 2020

Travel Agency - 1721 Words

Chapter 1 Introduction Hospitality Industry is dynamically growing in the recent years, not only in the number of tourist but also the number of it’s different fields. One of these is the expansion of Travel Agencies. Travel Agency is one of the service intensive industries and indispensible among the tourism business. But what is the specific role of travel agency in the hospitality industry and how does it affect the whole industry. Travel Agency is defined as a retail business selling travel-related products and services to customers on behalf of suppliers such as airlines, car rentals, cruise lines, hotels, sight-seeing tours and package holidays. When we say Travel Agency they are the one who can assist you in planning your trip†¦show more content†¦To the Travel Agencies- This research will help to promote Travel Agency as the readers become aware of the important role of it in the Hospitality Industry. To future researcher. The proposed study will benefits and help the future researcher as their guide. The study can also open in development of this study. To the Tourism Industry- The result of this study can provide recommendations on how to evaluate the performance of a certain Travel Agency in accordance to marketing the tourism industry. Statement of the Problem: This research intends to investigate the role of a Travel Agency in the Tourism Industry. 1. What are the characteristics of a travel agency. 2. How does a travel agency helps in marketing the tourism industry. 3. How does tourism Industry depend on travel agency. 4. Which aspect of tourism industry and travel agency do they relate to each other. 5. What is the advantage of booking in a Travel Agency compare to online-booking. Conceptual Framework I named this Conceptual Framework as the â€Å"The Descriptive Concept†. This research will show the characteristics, benefits, and the importance of a Travel Agency; it’s performance in the previous 5 years within the area of Malolos; it’s competitors and threats; and will also show how the Tourism Industry will become if without Travel Agecies. This facts will show us the significant role of the TravelShow MoreRelatedDialogue At the Travel Agency1436 Words   |  6 PagesL – Travel agent O– Fiancà © S – Fiancà ©e O – Hello. L – Good afternoon. Welcome to our travel agency. How can I help you? S – Hi! Oh! I’m so excited! We have our wedding in four weeks. I can’t help thinking of our living together. I assure you John, you’ll have the best wife in the world. O – Honey, I have no doubts about it, but let’s proceed to the main question. Mrs..? L – Not Mrs., Miss. Miss Andrews. So I guess you are here because of your forthcoming honeymoon. Am I right? O – Yes, Miss AndrewsRead MoreThe Global Online Travel Agency1184 Words   |  5 PagesOrbitz Worldwide Inc. 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Wednesday, January 1, 2020

Essay about Edward Wittens Work Led to a Revolution

Witten was born in Baltimore, Maryland. He is the son of Lorraine (Wollach) Witten and Louis Witten, a theoretical physicist specializing in gravitation and general relativity.[3] Witten attended the Park School of Baltimore (class of 68), and received his Bachelor of Arts with a major in history and minor in linguistics from Brandeis University in 1971. He published articles in The New Republic and The Nation. In 1968, Witten published an article in The Nation arguing that the New Left had no strategy.[4] He worked briefly for George McGoverns presidential campaign. McGovern lost the 1972 election in a landslide to Richard Nixon. Witten attended the University of Wisconsin–Madison for one semester as an economics graduate student before†¦show more content†¦In the late 1980s, Witten coined the term topological quantum field theory for a certain type of physical theory in which the expectation values of observable quantities encode information about the topology of spacetime.[5] In particular, Witten realized that a physical theory now called Chern-Simons theory could provide a framework for understanding the mathematical theory of knots and 3-manifolds.[6] Although Wittens work was based on the mathematically ill-defined notion of a Feynman path integral and was therefore not mathematically rigorous, mathematicians were able to systematically develop Wittens ideas, leading to the theory of Reshetikhin–Turaev invariants.[7] Another result for which Witten was awarded the Fields Medal was his (nonrigorous) proof in 1981 of the positive energy theorem in general relativity.[8] This theorem asserts that (under appropriate assumptions) the total energy of a gravitating system is always positive and can be zero only if the geometry of spacetime is that of flat Minkowski space. It establishes Minkowski space as a stable ground state of the gravitational field. While the original proof of this result due to Richard Schoen and Shing-Tung Yau used variational methods,[9][10] Wittens proof used ideas from supergravity theory to simplify the argument. A third area mentioned in Atiyahs address is