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Classroom Safety, 2007.
An analysis of the importance of safety standards and procedures for elementary school science classes.
2,143 words (approx. 8.6 pages), 9 sources, APA, $ 67.95
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Abstract
This paper discusses what procedures and plans should be known to every elementary science school teacher. In particular, the paper looks at how teachers should "pre-plan" activities and why it is vital that the guidelines for classroom deportment be set down from the very beginning and rigorously maintained. The paper then discusses what safety protocols teachers should have in place when dealing with potentially hazardous chemicals, flammable elements and animals. The paper also briefly examines why it is essential that science teachers understand the limitations of the facilities within which they work.
Table of Contents:
Abstract
What Every Elementary Science Teacher Should Know
From the Paper
"The matters of shoddy ventilation or over-crowding lead into a discussion of emergency procedures. Understandably, these should be brought to the attention of students prior to any science activity being performed. Beyond that, some emergency procedures appear to be more important - or more likely - than others. For instance, the Committee on Chemical Safety of the American Chemical Society (2001) reveals that emergency procedures should be put in place for emergency first aid, for poisoning, for burns, for evacuations, for chemical spills, and for animal bites. The same body also takes the position that experiments should be evaluated before-hand so that possible plans for potential contingencies can be arranged. Likewise, teachers who expect to be using Bunsen burners or chemicals which could be dangerous (especially if ingested by students) must have in place procedures for expeditiously contacting authorities in the event of an emergency (Committee on Chemical Safety of the American Chemical Society, 2001). All in all, it is hard to escape the conclusion that classroom safety begins with provisional plans being drawn up long before the first experiment is drawn up on a chalkboard or in a lesson plan."
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Superfoods, 2007.
This paper discusses the superior antioxidant effects of superfoods named mangosteen, acai and goji.
2,970 words (approx. 11.9 pages), 24 sources, APA, $ 87.95
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Abstract
This paper discusses the various phytonutrients and their structures contained in the mangosteen, acai and goji berry. Following this, a detailed discussion is provided on how these various phytonutrients can be applied to health issues ranging from cardiovascular disorders to cancer.
Table of Contents:
Definition of Free-Radical/Oxidation and Antioxidant
Phytonutrient Examination
Mangosteen
Acai
Goji
How Antioxidants Work in Relation to Illness
Anti-Aging
Skin Disorders and Allergies
Immune System
Cancer
Cardiovascular
Diabetes
Weight Control
Cholesterol
Synergy
From the Paper
"The primary antioxidants contained in mangosteen are referred to as xanthone that Rothstein (2006) claims are a new classification of antioxidants. Templeman (2003) describes them as stable "six carbon conjugated ring structures" that can be transported from cell to cell and bind to other xanthones. There are over 200 xanthones in nature, with over 37 having been identified within the mangosteen rind alone. Each xanthone has its own specific purpose. For example, gamma mangostin has anti-inflammatory properties and Garcinone E carries anti-tumor properties."
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Transforming Growth Factor (TGFa) Signaling Pathway, 2007.
This paper is an article review of the research by Z. Xaio, X. Liu, YI Henis, and HF Lodish entitled 'A Distinct Nuclear Localization Signal in the N Terminus of Smad 3 Determines Its Ligand-Induced Nuclear Translocation'.
850 words (approx. 3.4 pages), 3 sources, APA, $ 30.95
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Abstract
This paper explains that transforming growth factor TGFa is one member of a large family of proteins that are secreted from different types of cells and regulate growth, differentiation and development. The author points out that the binding of TGFa to its receptor on target cells initiates a series of events that result in changes in gene transcription of specific genes. The paper describes the reported experiment and concludes that its results provide added information to the current knowledge base on Smads, Growth Factor - signaling and the translocation process.
Table of Contents
Introduction
Aim of the Research Study
Experiments Performed
Results
Conclusions
From the Paper
"Xaio et al. (2000) performed their experiments on Smad 3 and Smad 4 protein structures that they cloned in a laboratory. This was the beginning of a long chain of events that allowed for assessing the reaction of the proteins before and after transaction . A group of control/stable cell lines was also used to transect the various GFP Smad proteins and constructs. Smad3 and Smad 4 proteins were also exposed to site-directed mutagenesis in order to mimic Smad 4's variation of Lys to Glu. Florescent microscopy was utilized to photograph the cells throughout the process before and after transaction."
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Beer-Making, 2007.
This paper describes the history and complexity of beer-making.
1,420 words (approx. 5.7 pages), 11 sources, APA, $ 47.95
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Abstract
This paper explains that beer-making, which is a complex process involving the conversion of grains into usable sugars and requiring much skill and patience, has not changed fundamentally in centuries. The author points out that some people believe that beer-making originated about 10,000 years ago in Africa and was apparently made then, as it is now, from cereal grains. The paper relates that beer-making is captive to a sequential process, including a variety of essential ingredients, which must be closely adhered to if it is to achieve its full potential, at least in the eyes and palates of beer connoisseurs.
From the Paper
"For their part, hops and yeast also play key roles in the creation of commendable beer. To wit, the former is a "twining vine" that grows in the summer months and is commonly eaten as a vegetable with the leaves "blanched" and used a soup. But most of all, hops serve to add "bitterness and aroma" to a beer - even if they are considered an integral part of every brewing operation. Finally, yeast is another significant ingredient in the "typical" beer and it serves to convert fermentable sugars into alcohol - and into beer flavors."
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The Detrimental Effects of Bisphenol A, 2007.
This paper explores the dangers associated with bisphenol A (BPA), an industrial chemical used widely today.
2,438 words (approx. 9.8 pages), 18 sources, MLA, $ 74.95
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Abstract
The paper relates that bisphenol A (BPA), the industrial chemical used to make epoxy resins and polycarbonate plastic used in a wide variety of products in today's market, is generally accepted as safe by many governmental agencies. The paper further discusses recent studies involving human exposure to BPA and shows how these studies have indicated a wide range of possible detrimental effects to humans and fetuses. The paper discusses the response of San Francisco to this issue and shows that the banning of products using BPA is a viable solution.
Outline:
Abstract
Introduction
Background
Literature Review
Community Responses to BPA Findings
Recommendations
Conclusion
From the Paper
"By evaluating current research on the effects of BPA on cancer cells, fetuses, and the body, it was hoped such evidence would support the banning of BPA in specific products, and the use of alternative chemical compounds that are less dangerous to human populations. After examining several studies published in peer-reviewed medical and scientific journals, it was found that over 100 research studies show clearly a link between BPA exposure and possible detrimental effects on the body, including an increase in breast and prostate cancer growth, abnormalities of the hippocampus, and an increase in neurodegenerative disease. These findings suggest that the banning of BPA and the use of substitute chemicals would avoid possible irreversible effects of BPA exposure."
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Sodium Bicarbonate, 2007.
A look at sodium bicarbonate, one of the most widely used chemicals in the household, in business and in medicine.
793 words (approx. 3.2 pages), 5 sources, MLA, $ 28.95
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Abstract
The paper describes sodium bicarbonate as a non-hazardous substance found in a number of household and industrial applications. The paper outlines the health and safety issues and medical uses of this compound.
Outline:
Health and Safety Issues
Medical Uses
From the Paper
"Sodium bicarbonate is, in general, a non-hazardous substance found in a number of household and industrial applications. The formula for Sodium bicarbonate is NaHCO3. Its molecular weight is 81.01 (1). It is also known by the common names Sodium hydrogen carbonate; sodium acid carbonate; baking soda; and bicarbonate of soda (1). It appears as a white, solid crystalline form, but sometimes as a fine, white powder (1). It can be purchased from a number of scientific and general population sources."
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Erbium: The Metal and Its Uses, 2007.
A discussion of the history, physical properties and availability of the metal erbium.
918 words (approx. 3.7 pages), 9 sources, MLA, $ 32.95
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Abstract
This paper explores the metallic element erbium. The paper describes this rare element as typically gray in color but also containing pink compounds, making it useful as an addition to glass or porcelain products aesthetically. The paper discusses the history of erbium, provides an overview of its physical properties and outlines its uses and functions.
Outline:
Introduction
Who Discovered/When
Physical Properties and Locations
Companies Involved In Preparation and Sale
Methods of Preparation & Uses
Commercial Compounds
Conclusions
From the Paper
"Erbium is one of many elements listed in the periodic table, a metallic chemical element specifically (Columbia 15785). Symbolized by the abbreviation Er, most credit the discovery of this element to a scientist named Carl G. Mosander, who although did not isolate the element, located it and separated it from "three oxide fractions" (Columbia 15785). It was not until 1934 that pure erbium was isolated from it's fractions by other scientists (Columbia 15785) allowing for greater exploration into its uses for commercial purposes."
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Wine, 2007.
This paper discusses the subject of wine and fermentation.
877 words (approx. 3.5 pages), 1 source, MLA, $ 31.95
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Abstract
In this article, the writer notes that in pre-industrial cultures, dating back to very ancient times and before the Industrial Revolution of the 18th century, the wine was far more practical than mere grape juice, simply because grape juice spoiled by itself if left in the open or unrefrigerated. The writer points out that it was easier to keep and store wine because after it was made, it did not spoil as much as compared to grape juice. The writer discusses that the overall character or taste of various types of wine can be determined by making and storing the wine in different types of containers. As to the types of fermentation processes which truly affect the taste of various wines, the writer notes that some include barrel fermentation, carbonic maceration, rose wine-making, fermentation in a bottle, malolactic fermentation and secondary fermentation.
From the Paper
"As it applies to wine, fermentation is the process which converts sugar to ethanol (i.e., ethanol alcohol) and carbon dioxide effected by the anaerobic, oxygen-free metabolism of yeast. One of the main reasons why grape juice was not kept or made before the Industrial Revolution was that it tended to spoil rather rapidly. But by the middle of the 19th century, the nature of fermentation began to be clearly understood, due in part to the experiments of French scientist Louis Pasteur who determined that ferments and their agents yeast and bacteria as primarily responsible for alcoholic fermentation. Chemically speaking, these agents act through their internal enzymes which functioning as catalysts, govern and control the series of reactions involved in the conversion of sugar into alcohol and carbon dioxide."
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Agent Orange, 2007.
This paper discusses the use of a chemical, known as Agent Orange, in Vietnam.
2,393 words (approx. 9.6 pages), 8 sources, APA, $ 73.95
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Abstract
In this article, the writer discusses Agent Orange which was a red-orange 50-50 liquid mixture of 2,4,5-trichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetic acid. The writer notes that American and Allied Forces soldiers recalled Agent Orange as a red liquid dropping from jungle leaves, which soaked their uniforms as they went on patrol. The writer explains that its purpose was to defoliate trees and remove the enemies' jungle cover in Vietnam. The writer also notes that this deadly liquid is now known to be responsible for a wide range of ailments, including disabilities and death, to an estimated 2.6 million Vietnam veterans and their offspring. The writer concludes that it has been more than 30 years since the use of these herbicides and that it was past the time for full and open disclosure of the hard facts in this regard.
From the Paper
"Federal authorities first became aware of the condition in 1979 when the Veterans Affairs offered health care and medical examination to the veterans. The medical surveillance program was meant to review the veterans' health concerns. The VA examined 334,000 of the 3.4 million veterans and registered the findings in a computer database. The VA has an Advisory Committee on Health-Related Effects of the Herbicides, established in 1979 to record and evaluate the health effects of the herbicides used in Vietnam by the soldiers. The VA also set up the Veterans' Advisory Committee on Environmental Hazards, composed of non-VA experts on dioxin and radiation exposure. Its duty was to advise on the outcomes of activities surrounding the use of Agent Orange. A 1991 federal law directed the VA to ask the National Academy of Sciences to or NAS to review the diseases linked to herbicide exposure."
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William Gosset, 2007.
A description of th life and achievements of William Sealey Gosset in the realm of statistics.
863 words (approx. 3.5 pages), 2 sources, MLA, $ 30.95
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Abstract
This paper discusses the life and work of William Sealey Gosset, who was one of the leading statisticians of his time, particularly with his work on the concept of standard deviation in small samples. It gives examples of some of his achievements in the realm of statistics. The paper describes Gosset as both brilliant in his professional work as a chemist and statistician and as a loved and respected man.
From the Paper
"After Gosset had worked for many years developing the practical application of his theory, he was involved in a terrible car accident in 1934 which left him incapacitated for many months. During this time, he had the opportunity to continue to work on his statistical work. He recovered enough after a year to move to London where he became the head brewer and scientist of production at a new Guinness brewery. Gosset continued to publish the results of his statistical findings while working in London. He did not hold his position there long as he died in Beaconsfield, England, on October 16, 1937 (O'Connor and Robertson)."
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