Examples of Organic Chemistry in Everyday Life

Organic chemistry is the study of carbon compounds, which extends to understanding chemical reactions in living organisms and products derived from them. There are numerous examples of organic chemistry in everyday life. Theyre All Around Us Here are examples of organic chemistry at work: Polymers consist of long chains and branches of molecules. Common polymers you encounter every day are organic molecules. Examples include nylon, acrylic, PVC, polycarbonate, cellulose, and polyethylene.Petrochemicals are chemicals derived from crude oil or petroleum. Fractional distillation separates the raw material into organic compounds according to their different boiling points. Examples include gasoline, plastics, detergents, dyes, food additives, natural gas, and medicines.Although both are used for cleaning, soap and detergent are two different examples of organic chemistry. Soap is made by the saponification reaction, which reacts to hydroxide with an organic molecule (e.g., an animal fat) to produce glycerol and crude soap. While soap is an emulsifier, detergents tackle oily, greasy (organic) soiling mainly because they are surfactants, which lower the surface tension of the water and increase the solubility of organic compounds.Whether a perfume fragrance comes from a flo wer or a lab, the molecules you smell and enjoy are an example of organic chemistry.The cosmetics industry is a lucrative sector of organic chemistry. Chemists examine changes in the skin in response to metabolic and environmental factors, formulate products to address skin problems and enhance beauty, and analyze how cosmetics interact with the skin and other products. Products With Common Organic Chemicals These common products make use of organic chemistry: ShampooGasolinePerfumeLotionDrugsFood and food additivesPlasticsPaperInsect repellentSynthetic fabrics (nylon, polyester, rayon)PaintMothballs (naphthalene)EnzymesNail polish removerWoodCoalNatural gasSolventsFertilizersVitaminsDyesSoapCandlesAsphalt Most  products you use involve organic chemistry. Your computer, furniture, home, vehicle, food, and body contain organic compounds. Every living thing you encounter is organic. Inorganic items, such as rocks, air, metals, and water, often contain organic matter, too.

Poverty With Hiv And Aids - 2242 Words

Due to gaps in policy oversight, the percentage of minorities living with HIV and AIDS in the United States remains high. It has remained high due in part to policies that were implemented during the early 90’s, emblematically The Ryan White Care Act, along with in policy makers for their failure to recognize the special needs and factors that pertain to minority groups, specifically African Americans and Non-white Hispanics. The racial disparities that have historically plagued these minority groups were initially overlooked in the policy making and implementation process. In turn, it is no disheartening wonder that certain figures and data are now representative of the minority demographic; example: African Americans, who make up only 14†¦show more content†¦Of those gay and bisexual men, 39% (4,321) were young men aged 13 to 24.6 From 2005 to 2014, the number of new HIV diagnoses among African American gay and bisexual men increased 22%. But that number stabilized in recent years, increasing less than 1% since 2010.6 From 2005 to 2014, the number of new HIV diagnoses among young African American gay and bisexual men (aged 13 to 24) increased 87%. But that trend has leveled off recently, with the number declining 2% since 2010.6 In 2014, an estimated 48% (10,045) of those diagnosed with AIDS in the United States were African Americans. By the end of 2014, 42% (504,354) of those ever diagnosed with AIDS were African Americans.6 One could only surmise how drastically different these statistic might have been if policy took a more holistic approach in the initial implementation process. The Ryan White Care Act It is often cited that the HIV/Aids epidemic that hit the United States in the 1980’s (though there is some evidence that it started even before then), came into light due to several high profile incidents and the eventual loss of several thousand lives. Many believe that due to

The Role of Food in The Great Gatsby and The Grapes of...

Eating and drinking is not only a necessity, but also a pleasure. Humans have known and experienced this since the beginning of man. Food plays a very important part in everybody’s daily life. However, the role of food in F. Scott Fitzgerald’s work The Great Gatsby and John Steinbeck’s novel The Grapes of Wrath vary immensely. The complexity and need for sustenance differ between the books, but both reflect the events, viewpoints, and attitudes of the time periods they are set in. The complexity of food and drink changes from book to book. Extravagant and sophisticated food and drink litter the background in The Great Gatsby. For instance, chapter three of The Great Gatsby describes â€Å"buffet tables, garnished with glistening†¦show more content†¦Chapter 3 incorporates a description of five crates of oranges and lemons arriving at Gatsby’s house, amongst many other elaborate food items (Thomas, 2010). These guests take notice of the lavish dishes scattered about the house, but further mentions of indulgence in his cuisine never surface. Also, the story never references Gatsby eating. His body never seems to experience physical hunger. Instead, emotional hunger pervades his mind. Gatsby yearns for Daisy’s love. His made up world engrosses him so much that actual food never is a must. However, the Joads find food immeasurably necessary. To them, sustenance is just that: a way to sustain themselves. Their meals deliver minimum nourishme nt, but it is just enough to keep them alive. It maintains their strength both physically and mentally. Meals offer time for the family to connect and inspire confidence in each other. Bonding occurs during mealtimes. In addition, they reassure one another that everything will be all right, no matter how dreadful their situation becomes. Food only provides somatic nutrition for the individuals in The Great Gatsby, but the characters from The Grapes of Wrath need food for both physical strength and emotional stability. The role of food also pertains to the time period in which the stories take place. The Roaring Twenties, a period of American prosperity and optimism, provides a backdrop for The Great Gatsby. Food closely parallels the wealthShow MoreRelatedInterpretations Of The American Dream1718 Words   |  7 Pages this deviation of the American Dream from its spiritual quest for the materialistic means of spirit produced a form of beauty and charm in its surface but resulted ungodliness in the spirit if inner mind. American Dream and ‘The Grapes of Wrath’. The Grapes of Wrath was published exploring the American Dream of farmers in Oklahoma as well as the landowners in there and California. The Joad family in the novel lives for an American Dream, which is to have a secure business and a place to liveRead MoreThemes And Styles Of John Steinbeck s The 4033 Words   |  17 Pageshis childhood there and readers learn about his home city and childhood in his works. Steinbeck wrote novels, non-fiction books, short stories, poetry, and plays. Some of his most impactful and recognized works include: Of Mice and Men, The Grapes of Wrath, The Pearl, The Moon is Down, East of Eden, In Dubious Battle, and Tortilla Flat. He was an investigative journalist who worked for the San Francisco News during his lifetime. He was a very controversial writer whose goal was to reform the currentRead MoreThe Blind Side Vs. Great Expectations2207 Words   |  9 PagesClassic Novels: The Blind Side vs. Great Expectations Classic novels are almost abundant in this day and age. One can find them almost anywhere, and the meanings can impact life in a major way. Although many books hold the honor of being considered a classic, some stories are on the outskirts, hoping to have the chance to join the ranks. Stories like these hope to one day join this honorable list. The Blind Side by Michael Lewis is one of those stories. The characters are relatable, the

Effects Of Alzheimer s Disease Description Of The Disease

Effects of Alzheimer’s disease Description of the Disease Alzheimer’s disease is a neurodegenerative disorder which attacks brain cells and neurons. This disease results in loss of memory, lower thinking capacity, loss of coordination and poor language skills. Alzheimer disease is majorly caused by brain cell death where neurons producing acetylcholine or neurotransmitters breaks connections with other nerve cell resulting to inflammation in the brain system connection (Munoz Feldman, 2012). When nerve cells in the hippocampus are destroyed by Alzheimer’s disease a person experiences the loss of short-term memory, while the destruction of neurons in the cerebral cortex results to decline in person’s judgment and language skills. Causes†¦show more content†¦In addition to that, patients with Alzheimer’s disease are reported to having loss of memory because of disconnection in the process involving signal transduction. The brain tissue shrinks and brain cells also die as a result of inflammation. Most of the patients with Alzheimer’s disease are people of age 65 years and above. It is therefore, believed that age is an environmental factor that increases the risk of Alzheimer’s development. Even though it is not proven scientifically, the statisticians have reported half of the people over the age of 80 having Alzheimer’s disease (Causes and Risk Factors for Alzheimer’s Disease., n.d.). Other risk factors that may lead to the disease development are; smoking, Hypertension, accumulation of cholesterol in the body, poorly controlled diabetes, lack of social engagement, lack of exercise and mild cognitive impairment. The 7 Stages of Alzheimer’s Disease Per Dr. Barry Reisberg of New York University, there are 7 progression stages of Alzheimer’s disease. During stage 1, the are no observable signs of Alzheimer’s disease or dementia. In stage 2, patients seem to have normal age related memory loss like losing things around the house. They can still pass memory and cognitive testing and their memory loss is unlikely to be noticed by family or doctor. At stage 3, family members start to notice memoryShow MoreRelatedThe Most Common Risk Factor For Alzheimer Disease1537 Words   |  7 Pageshave done extensive research on the factors that may afflict alzheimer s disease. Risk factors on their own are not causes of a disease. Risk factors represent an increased chance, but not a certainty, that Alzheimer’s disease will develop. The most common risk factors are age,history and heredity but evidence suggests that there may other factors that can be influenced. Ageing is the most common risk factor for alzheimer disease. 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What Is the Sherman Anti-Trust Act Free Essays

The American government has engaged in the process of creating and enforcing legislation as the course of action for everyone to follow when dealing with labor issues and the workforce. In my research, I found several pieces of legislation such as the Sherman Antitrust Act of 1890, and the Federal Trade Commission Act, the Clayton Act (Federal Trade Commission, n.d. We will write a custom essay sample on What Is the Sherman Anti-Trust Act? or any similar topic only for you Order Now ), and per text the Wagner Act of 1935, and the Taft-Hartley Act (DeCenzo, 2016). Congress passed this legislation as the determining element in how much control that management and/ or unions would have in protecting the rights of the workers and the organizations. The US government has been involved in the process of acting as a mediator between the organizations and unions with labor clashes. In the 1800’s, there weren’t many laws that would govern how unions would operate within the organization. So in the early stages of unions organizations thought that the unions were illegal and that they would interfere with the progress of the organization. The Sherman Antitrust Act was the initial legislation adopted that shaped labor unions. This act was important to the organization because it prevented any â€Å"restraint of commerce across state lines and the courts ruled that union strikes or boycotts would be covered by the law†. There is two additional act of the Sherman Act, they are the Federal Trade Commission Act the prohibit bias procedures concerning competition and misleading forms of practice, the Clayton Act focuses on certain issues such as mergers and joining boards members. The main strike in 1894 between the Pullman Palace Car Company and the American Railway Union, where workers walked off of the job because wages were cut by as much as forty percent. At that time the organization was able to obtain a ruling that stopped both the strike and boycott. And because of this labor unions discovered that it would be harder to organize successfully (Shmoop, 2018). The National Labor Relation Act of 1935, which is also known as the Wagner Act was endorsed to protect both employers, and employees, it is the main key to union rights. The Wagner Act distinctively insist that employers should bargain in excellent confidence on issues such as wages, hours, and employment environments. This gave unions control over bias labor habits. Therefore, the Wagner Act empowered unions to be able to grow and advance, plus to establish unions permitting them to protect and bargain together, which means the workforce has the right to come as one to make their demands known even without a union (DeCenzo, 2016) (Shmoop, 2018). Because the Wagner Act sheltered the unions it led to the Taft-Hartley Act which is known as the Labor-Management Act (DeCenzo, 2016). This act covered the concerns of the employer in preventing bias practices of the unions. It prohibited closed stops by declaring them illegal and empowering the states to pass laws that would decrease mandatory union representation. It also disallowed secondary boycotts by giving the president authority whenever differences may influence national security. Both parties must bargain in â€Å"good faith† by coming to the table intending to reach an agreement. But if they don’t reach one the Taft-Hartley developed the FMCS to help in the talks (DeCenzo, 2016). All of these laws are vital to the organization and unions since they’re the basis of the relationship that is between the workforce and the employer. While the NLRA has changed over time it is very important because it includes how both should work together throughout the bargaining process. And how the Taft-Hartley controls the duration of the relationship. But they safeguard that everyone should work together during the conditions of the association. As a result, unionized workers through combined efforts of both the union and organizations cooperative bargaining have produced better wages, benefits, safe environment, and health conditions for the workforce. They have also included better opportunities for the non-unionized workers (Walters, 2003). References DeCenzo, D. A. (2016). Fundamentals of Human Resource Management, 12th Edition. Hoboken, NJ: John Wiley and Sons Inc. Federal Trade Commission. (n.d.). Retrieved from The Antitrust Laws: https://www.ftc.gov/tips-advice/competition-guidance/guide-antitrust-laws/antitrust-laws Shmoop. (2018). Retrieved from History of Labor Unions: https://www.shmoop.com/history-labor-unions/law.html Walters, M. a. (2003, 8 26). Economic Policy Institute. Retrieved from How unions help all workers: https://www.epi.org/publication/briefingpapers_bp143/ How to cite What Is the Sherman Anti-Trust Act?, Papers

Lighting and Switching Coordination in Substations

Question: Discuss about theLighting and Switching Coordination in Substations. Answer: Introduction Insulation coordination is a sure way of protecting the substation power system by coordinating switching. One of the biggest safety risks in substation is the occasional lightning being experienced in most parts of the country. An S/S that is not properly designed against this natural phenomenon would often experience dangerous power surges. Therefore, the process of designing the power switching coordination systems in a substation is a critical undertaking that would ensure overall safety of the equipment and operators. The various equipments in the substation must be protected against these dangerous power surges that mostly frequent the system. Normally the lightning would strike and last for about 0.25 seconds. Although this could be a very short time but the damage caused afterwards can be transmitted to the entire system. Notably, surge protection can never be a 100% in any given power system where large voltages are generated. Most systems would work by confining the damage to a designated section in the system. Properly designed systems with proper switching coordination would mostly guarantee an automatic protection system. So how does the lightning affect the system? When it strikes the system, there is normally dramatic escalation of the voltage level. Consequently, the current wave propagation also escalates to levels that the system can not withstand. In such situations, system breakdown results preceded by melting of the conductors and arcing hence the system become dangerously unsafe to the human operators. Therefore, it is often desired to design more effective and efficient surge protection systems that would guarantee safety even when it strikes unexpectedly. Surge protection systems are often integrated into the overall power network so as to carry out the function of regulating power surges. It is common to analyze their characteristics so that they can be designed to smoothly operate within the safe limits. Therefore, firstly, it is imper ative to study the lightning strokes and how switching coordination could be used to protect the substation system against overvoltage and power surges. Literature Review Many researchers have greatly attempted to uncover different methods that could be used for surge protection. The following paragraphs outline some of the tremendous contributions by various researchers in this area: Elahi, H et al (1989) Although this is an old paper, it is still very relevant to assist in the analysis of the modern power network systems. The author mainly explored the purpose of performing insulation coordination in hvdc converter stations. He opines that insulation is mainly done to achieve the following purpose: -The maximum steady state, temporary and transient voltage levels could be determined hence exposing the equipment requirement voltage levels -The protective devices, commonly used such as the surge arresters could have their characteristics analyzed hence establishing the extent of surge protection and ultimately their durability. The paper also proposed a procedure for surge protection where gapless metal oxide arresters could be used for insulation protection .According to the author, this method is cost-effective and performs better than other designs. Das Kanabar (2015) This paper proposed a dynamic tool for grid power control. The authors admit that the modern power system has become more dynamic and complex hence there is need to protect the grid power using a more sophisticated protection system. They proposed a centralized substation protection control system. He attributes that the evolution of relays has occurred since the 1960s where electromechanical relays were the common types. Later, solid state relays dominated the field but the most modern systems have microprocessor based relays that are more superior in functionality than the solid state relays. They operate using logic and often described as intelligent. Therefore, modern technologies around the surge protection system normally are constituted of the hardware platforms onto which the software configurations can be built. The linkage between the two elements is via a sophisticated communications channel with supported protocols such as the MMS, GOOSE and synchrophasor (Das Kanabar, 2 015). The authors also opine that the element of control in such protection system is often complex and a system architectural implementation such as SCADA normally offer better monitoring and control. Every tiny but critical portion of the system could be monitored by this system hence providing real-time data to the operators for necessary action to be taken. However, the author agrees that more work need to done to improve the performance of such a system and even they go further to recommend various architectural designs of the system. Fulchiron, D (1995) This author attempted to explain exactly what happens to the substation power network when lightning strikes. During stormy weather, lightning are usually common and sometimes they can unexpectedly strike the substation power network. Mostly their polarity is negative to the substation and they dangerously damage the entire system by escalating the voltage levels in the network. Consequently, the current flowing in the network also surges to levels that cause breakdown of the conductors hence system breaks down completely. According to Fulchiron (1995) the voltage surge is given by the formula: U = Zc i/2 where Zc = is line zero characteristics impedance and I is the injected current into the system. The surged voltage value is normally in the range of million volts, a level that no system can withstand hence arcing is normally experienced before the network can shut down completely. Pacificorp (2010) It establishes various protection schemes that could be used against the lightning. Notably, the arresters combined with the breaker protection are often viewed as better option. The transformer is being rated as the most critical part of the substation hence they are often protected on both sides by the breakers with the arresters connected on both sides as well such that when it strikes, the system goes offline automatically hence preventing damage that may occur in the absence of these surge protection systems. It is also being proposed that substations with capacities of 138kV and below be protected by shielding, and use of lightening arresters. Furthermore, breaker protection could be used for capacities between 69kV and 139kV. Hypothesis Hence the hypothesis that would guide the research-to-be-done include: Centralized protection provides better switching coordination than decentralized system Challenges The major challenges that are likely to be faced include: The lack of standardized methods and techniques for surge protection and network insulation making it difficult to characterize the networks The information about substation insulation is still at infantile stage hence expectedly data on the existing systems may not be sufficient for the research work Seemingly the research work in this area has stalled; hardly do we have the designers seriously considering this risk (natural phenomenon) to the power network system Conclusion The work of providing a near perfect insulation system in power network system is still in progress. Certainly, more research work is still expected especially in discovering methods and techniques that could be used to temporarily switch off the system during lightening strikes but almost go online automatically. The existing ones operate in such a manner that ones they go offline, it will require a human operator to bring it back to operation. Besides, reportedly, some of the existing systems have been jamming severally during operation. Therefore, the future work will certainly focus on delivering solutions that are more reliable; although it should be noted that 100% efficiency can never be guaranteed. Reference Fulchiron, D. (1995).Overvoltages and insulation coordination in MV and HV. Available at: https://www.studiecd.dk/cahiers_techniques/Overvoltages_and_insulation_coordination_in_MV_and_HV.pdf Das, R Kanabar, M. (2015).Centralized Substation Protection and Control. Available at: https://www.pes-psrc.org/Reports/IEEE_PES_PSRC_WG%20K15_Report_CPC_Dec_2015.pdf Elahi, H et al. (1989). Insulation Coordination Process for HVDC Converter Stations: Preliminary and Final Designs. Available at: https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4310601 Arrester works.(2010). Insulation Coordination FAQ. Available at: https://www.arresterworks.com/services/insulation_studies.php Pacificorp. (2010). Lightning and Other Overvoltage Protection. Available at: https://www.rockymountainpower.net/content/dam/pacific_power/doc/Contractors_Suppliers/Power_Quality_Standards/1B_7.pdf