Essays on Chemist

A chemist may be draw to the science because it contains physics and mathematics, with results clearly defined. On the other hand, biology can be messy, with fluids and disrupted bodies and patient suffering. For the nursing professional, there may be the temptation to define a physical process present in a patient as either biological or chemical. Technically, the definition for biology is simply the “scientific study of living organisms” (TheFreeDictionary.com), while chemistry is “a science that deals with the composition, structure, and properties of substances and of the transformations that they undergo” (Merriam-webster.com). However, the lines blur when ...

Philosophy

I. Introduction A common definition of whistle-blowing refers to it as the manner by which an employee discloses an unethical practice within an organization. The disclosure is usually done to concerned authority, and it typically involved compromising one’s loyalty to an employer, in favor of the greater good. Consequently, there are essential components of whistle-blowing, a) a person intends to make the information known by the public, b) the information is communicated and becomes part of public record, c) the given information relates to a nontrivial offense within an organization, and d) the person who made the report ...

Uranium (U) element was discovered by a German chemist, Heinrich Klaproth, in 1789. Uranium is a radioactive element with an atomic weight of 238.02891 and an atomic number of 92. The uranium element initially discovered by Heinrich was an oxide, uranium oxide. A French chemist, Eugène-Melchoir Péligot, was the first person to produce pure uranium by reacting it with potassium in a heated platinum crucible. The element’s radioactive properties were established in 1896 by a French physicist known as Antoine Henri Becquerel. Currently, uranium can be extracted from various ores such as carnotite (K2(UO2)2VO4· ...

Biology

(Department)

DNA and its importance in our lives

Introduction Deoxyribonucleic acid (DNA) is a long linear polymer located in the nucleus of a cell. It is developed from nucleotides and shaped like a double helix. It is related to the transmission of hereditary information from one generation to the second generation. DNA contains the information for the development as well as reproduction of an organism, thereby leading to a normal life. In the year 1953, James Watson, a biologist, and Francis Crick, a physicist, discovered the structure of DNA in a laboratory in England (LEROY, 2003). The structure of DNA helped scientists to know the process ...

Research paper about Lithium

Introduction Metal minerals are critical for the economic development and technological advancement. In the world, many minerals play an important part in easing and improving the development of new and advanced materials. Lithium mineral is an example of the mineral found in some various part of the world and is use in multiple applications in industries. This research paper majorly focuses on lithium production and manufacturing. It gives the brief history of mining and production of lithium, the countries, and companies that are well recognized for the mineral production. It also gives the industrial application of lithium. Furthermore, the ...

Introduction

Dietary fiber is a combined term for a diversity of plant matters that are resistant to digestion by human gastrointestinal enzymes. Dietary fibers can be categorized into two major groups according to their solubility in water. In humans, natural gel-forming fibers (gums, pectins, mucilage, and the remains of the hemicelluloses) are soluble. Whereas the matrix fibers or the structural (lignins, some hemicelluloses, and cellulose,) are insoluble, Dietary fiber and whole grains are among the best sources of nutrients including minerals, a slowly digestive energy and vitamins. (Byrne, 2011). They also contain phytochemicals such as carotenoids, lignans, inulin, beta-glucan and phenolic. These chemicals ...

Illicit drugs such as MDMA are typically thought to be in a category of their own when compared to alcohol. Most think illegal substances share nothing in common with ones that we are allowed to purchase on a daily basis. Many forget that MDMA had very humble roots, having been synthesized in a lab and used for therapeutic purposes. Eventually, it morphed into something that could harm people. Alcohol has a similar history. Once used as something that would relax an individual after a long day of work, it is now something that people become addicted to every day. Though the two drugs are ...

MDMA

MDMA, otherwise known as “ecstasy” has been in circulation since for many decades. Once a tool for psychologists it eventually devolved into a street narcotic. Sometimes, if not always, it can be very dangerous to the user. With a variety of side effects that are alluring to the typical miscreant, MDMA/ecstasy has built itself a strong reputation as one of the more fun street drugs, despite its dangers. In 1912, Anton Kollisch was a Merck chemist and the first person to synthesize MDMA in a lab. Initially, the drug was being developed in an attempt to stop abnormal bleeding. In 1927, Max Oberlin became the ...

Methamphetamine

In his drug education book, Methamphetamine, journalist Hal Marcovitz (2006) called methamphetamine “the ugliest drug there is”. The section immediately below discusses the drug’s history—its progression to ugliness. Subsequent sections describe the preparation and effects of methamphetamine, legal issues, and recovery from methamphetamine addiction.

History

In 1887, a Japanese chemist extracted ephedrine, the precursor to methamphetamine, from the ephedra plant. Ephedrine was soon found useful in treating respiratory illness, especially asthma. About the same time, a German chemist combined ephedrine with other chemicals and produced amphetamine, which was also used to treat nasal and chest congestion. Due to the expense ...

Abstract

The fugacity is a term that has Latin origins, referring to pace and speed. Early work somewhere in the 20th century, on fugacity, demonstrated that chemical equilibrium is established by the free energies of reacting material. Since then, various approaches and concepts on fugacity have been provided. The gas fugacity of noble gasses has been studied, and models have been proposed for calculating the solubility of noble gasses. The development of various models has considered pressure effects, differential equilibrium between components and temperature changes. The paper discusses the evolution of various multimedia fugacity models and the fugacity of pure ...

Artist of OP Art

Artist of OP Art

Introduction

Op art refers to the artwork that involves the paintings and sculptures based upon illusion. It is described as an “Optical Art” that revolves around movements and directly attacks an eye. It uses optics and by having an immense use of disorientating and optical effects, the paintings are finalized by using brilliant colors, geometrical shapes, and different patterns. OP art is mainly an abstract art in which forms, lines, and space play a major role of bringing out a painting of ambiguous nature. In other and simple words, an op art is an illusion of movement meaning ...

What is sunlight?

The sun provides tirelessly every square meter of the earth's surface, which it attacks, with an average of about 1370 watts of power (in the form of electromagnetic radiation). We say that the sun burns, but actually it does not. Instead, the sun is a giant nuclear reactor (Layton & Freudenrich, 2000). This solar energy is called the solar constant, since it does not change, except for minor fluctuations. Solar energy is sent in the form of light waves. Light is an electromagnetic wave. The frequency of light - or how fast the waves vibrate - determines the differences in color. ...

The story of women in science and technology throughout the ages is a deeply inspirational account of how a class of females, most of whose names have been lost through the great annals of time, helped change the world for the better. How can a lot of people have missed this truth? It seems, as one will reflect upon the current stature of women folk in society these days, that there has been a deliberate gap in introducing the concept to the populace. Most people have never heard about them. How come? In this present time and age where -- throughout the ...

Introduction

The task of this report requires the development and analysis of a counterintelligence activity, which specializes in the involvement of drugs, pertaining to an operation conducted by the Federal Bureau of Investigation (FBI). A plethora of counterintelligence sectors exist including matters involving illegal drug activities, terrorism, child pornography rings, money laundering, Internet scams, corporate security, and more. In general, counterintelligence competes with these aforementioned areas sometimes in ways that overlap. For example, an Internet scam may involve theft of consumer credit card information – as well as running illegal or non-existent gambling websites. The chosen case study to be developed concerns ...

The principle of utility is also the greatest happiness principle. This principle justifies actions in reference to their ability to result in happiness. A right action results in happiness. A wrong action on the other hand results in sadness. Happiness in this context is a feeling of pleasure. It also means the absence of pain in an individual. Sadness on the hand results in unhappiness, pain, and lack of pleasure in an individual. This principle describes what is right and wrong in reference to the actions of an individual. The principle explains that right actions result in happiness among people ...

The purpose of the survey is to ascertain whether counseling for patients effect on their medicine adherence. The population of my interest is patients who are on medication. For the purpose of my survey, the sample is sourced from patients who come to get their medicine supply from Right Aid Pharmacy in the Bronx on Eastchester Road . This makes my sample a non-randomized convenience sample. The choice of the population as those under medication is objective in my study. The rationale is that the population is diverse as it consists of both male and female and the ages are diverse ...

Chemistry has had a major impact in the world. This paper examines the importance of chemistry, and the jobs that a person that has a chemistry major can be able to perform. Chemistry has shaped the past of human beings. In fact, it has helped people to understand what air is, the general understanding about atoms as well as an understanding of how matter changes. It is imperative to understand that without chemistry, modern medicine would not have been achieved and diseases would be running riot by the 17th century, the modern chemistry had started to take shape, the average life ...

The discovery of DNA as the genetic material was one of the landmark events in the field of biology. By confirming DNA as the genetic material scientists made a huge leap that has advanced the cause of medical science to a great degree. While discussing the discovery of DNA as the genetic material, we mostly speak of Friedrich Miescher (1871), the man who discovered DNA. After the discovery of DNA a significant number of studies were conducted that proved DNA as the genetic material. Then Griffith, (1928) conducted studies on bacterial transformation and indicated that genetic information can be transferred from one ...

Lloyd Augustus Hall

Lloyd Augustus Hall’s contribution to science largely involves food preservation. Lloyd’s interest in food chemistry, a new area of chemistry, started while working at Boher Chemical Laboratory. Before his inventions, table salt (sodium chloride) was used as the major food preservative especially in preserving meat (Wilson and Jane, 34). However, table salt was not effective enough, as meat could only be preserved in a short period using this technique. Following various experiments, Lloyd came up with “flash-drying” technique as an alternative to table salt preservation. The technique involved a combination of sodium nitrate crystals and nitrite and sodium chloride, which ...

Georges Méliès was the one of the first directors in the history of world cinema to leave the audience in awe. The stalwart’s works have continued to impress gazillion film lovers across the globe in the past century. What made him stand apart was the fact that his films were not documents of prosaic events. Rather, the man portrayed scenes that could only exist in the vivid imagination of the audience before this. The eminent film theorist, Tom Gunning, tags his films with the phrase ‘cinema of attractions’ which describes his works as a perfect mesh of spectatorship, ...

Childhood vaccination is a subject that has constantly been in the news in recent years, with two sides hotly debating whether vaccines are a necessity for child safety or if they are unsafe and responsible for disorders such as autism. Proponents of vaccination argue that vaccines are responsible for the health, safety, and lower mortality rates for children all over the world. People who are against vaccines include celebrities such as Jenny McCarthy and Jim Carrey, physician Dr. Andrew Wakefield, and others who believe vaccines cause more harm for children than they do good. It is no wonder that new parents ...

With close to 2.8% of the earth’s crust consisting of sodium in compounds, Sodium is by no doubt one of the most abundant elements on earth. The element has an atomic mass of about 22.98 amu and belongs to period 3 Group 1 (1A) (between Lithium and potassium) hence has an atomic number of 11, a valance of 1 and an oxidation state of +1. The Latin name for the symbol of Sodium is Natrium hence the symbol Na while the “Sodium” in Latin is referred to as Sodanum. Additionally, even though the element has 14 isotopes, the only ...

Fritz Haber, born in 1868, was a world-renowned German chemist whose multifaceted works in the field of chemistry earned him a Nobel Prize in chemistry in 1918. His most notable work involves the chemical process of synthesizing ammonia, which is used as one of the core ingredients in fertilizers and explosives (Stoltzenberg 84). The entire food industry is arguably dependent on his ingenious method, as most of the food is produced using fertilizers and other elemental components produced using his premier method. Perhaps the most unsettling role he played as one of the world’s most notable genius chemists was in ...

Research Question

Polystyrene is a very commonly-used material in the food and consumer electronic packaging industries. This paper will revolve around the research question “can polystyrene have other uses aside from its common uses?” The HIPS will be of particular importance here because much of the paper will revolve around the use of HIPS, how it is used, and how it differs from typical polystyrene. HIPS, which stands for High Impact Polystyrene is used in the research and development and manufacture of mechanical prototypes and other tools that are often subjected to high impact environments, stress, and tension. It is one of ...

Short Term Benefits

1. Microeconomics and macroeconomics both utilize different scales for managing the economy. Microeconomics deals with how everyday companies and families interact with the market to set a balance between the demand and supply price. Macro economics on the other hand deals with the bigger picture of economic activities. It includes the components of taxes, unemployment, economic growth and inflation. Macroeconomics deals with laying policies in which the micro system functions. The areas of concern in this branch include management of the numerous individual economic units which can be very complicated and contradictory considering the varied interest of each microeconomic firm. ...