| Papers [253-264] of 1889 :: [Page 22 of 158] | | Go to page : <— 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 —> | |
|
|
The Columbian Exchange, 2007.
An analysis of the roots, purpose and significance of the Columbian Exchange.
1,850 words (approx. 7.4 pages), 6 sources, MLA, $ 59.95
»
Click here to show/hide summary
Abstract
This paper looks at the Columbian Exchange, an accidental byproduct of the Old World coming together with the New World which provided a forum for the exchange of many things including plants, animals and disease. It further discusses how the Columbian Exchange provided a massive transformation of the world's eco-system which had a significant impact on mankind.
Outline:
Introduction
How the Process Began
The Not so Nice Side of the Exchange
Understanding the Environmental Impact
Significance
Conclusion
From the Paper
"The beginning of what is now referred to as the Columbian Exchange arrived during the second voyage to North America by Christopher Columbus and the 1,200 men he brought with him. It was at that time that Europeans arrived on North American soil. This event triggered a massive transformation of the global ecosystem because the arrival of the Europeans sparked the beginning of the two areas of the world sharing and trading flora, fauna and disease(Columbia pp). It was a time in which the Old World met with the New World and neither side was prepared ecologically for the onslaught that the introduction of eco-system elements to the environments would bring. "
| |
|
Marine Ecology, 2007.
This paper explores marine ecology with a focus on organisms' specialized adaptations.
787 words (approx. 3.1 pages), 2 sources, MLA, $ 28.95
»
Click here to show/hide summary
Abstract
The paper defines marine ecology as how plants and animals in a marine setting interact with the physical attributes of a water-dominated environment, such as in the major oceans of the world which are predominately saline. The paper shows how a great variety of animals and plants have managed to adapt themselves to this often harsh environment in order to survive and flourish. The paper relates that one particular adaptation is the application of camouflage, meaning that some marine animals are capable of disguising themselves in order to elude predators. The paper demonstrates how flounder, mussel, the sponge and barnacles have adapted themselves to their marine environment.
From the Paper
"One particular adaptation is the application of camouflage, meaning that some marine animals are capable of disguising themselves in order to elude predators. A specific type of camouflage is called disruptive coloration, best illustrated by certain types of fish that are striped or spotted or have external markings or colors that blend in with the environment, making it very hard to see them when set against a sandy or rocky bottom. A prime example is the flounder, a flatfish belonging to the families of Pleuronectidae or Bothidae and well-known for its ability to conceal itself on the ocean bottom to primarily escape detection by predatory fish."
| |
|
Stem Cell Research, 2007.
This paper examines aspects relating to stem cell research.
1,393 words (approx. 5.6 pages), 10 sources, MLA, $ 46.95
»
Click here to show/hide summary
Abstract
In this article, the writer points out that on March 02, 2006 Rick Weiss reported in The Washington Post that due to the myriad of laws and ethics rules governing human embryonic stem cell research, an international community of scientists, ethicists and others have begun to collaborate on setting out a set of universal principles that will guide stem cell research worldwide. The writer notes that among the emerging principles are that restrictions should be rare, well-justified and flexible, and that scientists should be free to work abroad if research is banned in their own country. Further, the writer discusses that the group is hoping that the principles will, over time, gain widespread acceptance much as did early declarations of human rights.
From the Paper
"In the April 02, 2005 issue of the National Journal, Neil Munro discussed the potential use of stem cells in accelerating the development of new drugs. According to James Battey, chairman of the stem-cell task force at the National Institutes of Health, says that embryonic stem cells could be sued to shorten the drug-development process."
"Munro notes that this is one of several new twists in the long-running debate over stem cells that surfaced as advocates stepped up their promotion of new initiatives in several states that, like the 2004 successful initiative on the California ballot, would pump hundreds of millions of dollars into embryo-cell technologies."
| |
|
The Circulatory System, 2007.
An in-depth examination of the circulatory system and cardiovascular disease.
2,460 words (approx. 9.8 pages), 11 sources, MLA, $ 74.95
»
Click here to show/hide summary
Abstract
The paper describes the composition of the circulatory system. The paper explores the common disorders associated with the circulatory system; arterial damage, inflammation and blood clots, hypertension and arterial aneurysms. The paper identifies common procedures and treatment for these disorders. The paper reveals that one of the most pervasive forms of preventative treatment for cardiovascular disease is lifestyle modification, especially a change in diet. The paper details angioplasty, coronary artery bypasses and anti-hypertensives.
Outline:
Make Up of the Circulatory System
Common Disorders Associated with the Circulatory System
Common Procedures and Treatment for the Disorders Identified
From the Paper
"The circulatory system, also known as the cardiovascular system, has several functions. These functions include: the transport of substances to and from the cells, maintenance of body temperature, and maintenance of pH as part of homeostasis. The circulatory system of all vertebrates, including humans, is a closed system, meaning the blood is not meant to leave the system. The primary components of the system are the heart, blood and blood vessels ("Circulatory System")."
| |
|
Photosynthesis, 2007.
A research paper, including two experiments, to better understand photosynthesis.
1,733 words (approx. 6.9 pages), 5 sources, MLA, $ 56.95
»
Click here to show/hide summary
Abstract
The paper examines the absorption spectrum of a chloroplast suspension. The paper further examines the determination of the effect of light quality (wavelength) on photosynthetic rate. The paper explores how to measure photosynthetic rate with dichlorophenolindophenol (DCPIP), determining the extent of color loss of the dye DCPIP.
Outline:
Abstract
Introduction
Method
Results
Discussion
References
From the Paper
"The second experiment of this lab is determination of the effect of light quality on photosynthetic rate. The cabbage has the highest photosynthetic rate, xxxx(nm) in blue light. But the spinach has the highest photosynthetic rate, xxxxx(nm), in green light. Red cabbage and spinach have different photosynthetic rates in four different kinds of light, because red cabbage and spinach have different-colored leaves. For red cabbage, the highest to lowest photosynthetic rate is blue (xxxxx nm), broad spectrum (xxxxx nm), red (xxxxxnm), and green (xxxx nm)."
| |
|
Petco Company, 2007.
This paper offers an analysis of the Petco company, which is comprised of a chain of pet stores.
3,528 words (approx. 14.1 pages), 12 sources, MLA, $ 99.95
»
Click here to show/hide summary
Abstract
In this article, the writer examines the company Petco, a chain of pet stores offering a full line of merchandise, from the animals themselves to housing, feed and toys for pets. The writer discusses the pet industry as a whole, looking into its history. The writer then explains how Petco grew and expanded into a national chain and looks at this company that has played a leading role in reshaping the industry. The writer concludes that Petco has gained a leading position in the pet superstore segment and has made good use of advertising, promotions, and other marketing tools to attain and maintain this position. Further, the writer notes that the marketing for the company's stores has helped make it the number two pet store chain in the country.
Outline:
Description of the Industry
Historical Development
Current Status
Future Outlook
Description of the Organization
Historical Development
Current Status
Micro-environment
Target Market
Conclusion
Works Cited
From the Paper
"The pet store has long been a staple in the retail market, with small single stores in cities across the country selling pets and pet supplies to consumers. Pets have been an important part of many households in America for a long time. In early America, animals were commonly part of farms, with many animals kept for pets. Some dogs served both as pets and working dogs, a dual role that continues to this day on farms and ranches across the country. As more and more people moved into urban regions, they brought animals along as pets. Dogs and cats are the most common pets in American households, followed by fish and birds. Among the other creatures kept as pets are snakes, lizards, and even certain types of pigs. These animals have to be fed, and stores emerged to sell food products for these pets. Industries developed around producing healthy foods for pets, showing that people were willing to spend a good deal of money to provide for their pets."
| |
|
Neurology, 2007.
This paper looks at the issue of gene transfer and examines various neurological disorders.
2,635 words (approx. 10.5 pages), 24 sources, MLA, $ 79.95
»
Click here to show/hide summary
Abstract
In this article, the writer discusses that today, understanding and comprehension of the central nervous system and immune system has progressed much beyond previous years. The writer points out that this is perhaps due to the development and progress of advanced molecular genetic techniques. The writer then explains that in medical and technical terms, this means that it is now possible to isolate, characterize and eventually clone a gene related to certain specialized disease states. The writer maintains that the very combination of gene transfer and grafting would be a reasonable and practical approach to the problem of alleviating biochemical deficits and to restoring function wherever necessary. The writer then looks at communication difficulties in children. Further, the writer discusses various language disorders in children and adults.
From the Paper
"Today, several institutes like for example, the NINDS or the National Institute of Neurological Disorders and Stroke, are conducting research on the topic, and they hope to find a better understanding of trauma to the brain caused by injury or disease, and they also hope to develop strategies that would effectively limit primary and secondary brain damage after an injury or trauma. The device that has been developed by the team simulates the condition of trauma in cells under culture. The purpose of the devise would be to allow researchers to be able to control the degree of injury to the cells, and therefore, to be able to study the biological and physiological effects and responses that those cells would demonstrate towards the trauma."
| |
|
Anthrax: A Public Health Concern, 2007.
A look at the transmission, symptoms and treatment of anthrax.
2,946 words (approx. 11.8 pages), 5 sources, MLA, $ 87.95
»
Click here to show/hide summary
Abstract
Anthrax, which is caused by a spore-forming bacterium called Bacillus anthracis, actually occurs as an acute and infectious disease, and is generally found in animals, both wild and domestic. This paper examines how the disease spreads, its different forms, its symptoms and its prevention. In particular, it looks at how it is used as part of bioterrorism.
From the Paper
"Anthrax is termed a zoonotic disease (meaning that it is acquired by people from animals) (Brachman & Friedlander, 1994). The earliest accounts of humans getting this disease are thought to be caused by anthrax dating from the Fifth Egyptian Plague, which was 3500 years ago (Brachman & Friedlander, 1994). During the Middle Ages, anthrax, which was then called "The Black Bane," actually killed very large numbers of people and animals over in Europe. At that time, there was no understanding of the disease, and there was no vaccine (Brachman & Friedlander, 1994). Much like the bubonic plague, people simply did not seem to understand how the disease worked or how they should prevent it."
| |
|
Stem Cell Research, 2006.
A discussion regarding the controversial issue of stem cell research.
753 words (approx. 3.0 pages), 6 sources, MLA, $ 26.95
»
Click here to show/hide summary
Abstract
This paper takes a look at the hot topic of stem cell research. The paper discusses how stem cells have the potential to develop into many different cell types within the body and because they can theoretically divide without limit to replenish other cells as long as the individual or animal is still alive, they serve as a repair system.
From the Paper
"According to the National Institutes of Health, the most important potential application of human stem cells is the generation of cells and tissues that could be used for cell-based therapies (Stem). Donated organs and tissues are often used today to replace ailing or destroyed tissue, however the need for transplantable tissues and organs far outweighs the available supply (Stem). Because of the ability to differentiate into specific cell types, stem cells offer the possibility of a renewable source of replacement cells and tissues to treat diseases such as Parkinson's and Alzheimer's diseases, spinal cord injury, stroke, burns, heart disease, diabetes, osteoarthritis, and rheumatoid arthritis (Stem)."
| |
|
Growth Hormone, 2006.
A discussion regarding pharmaceutical and biotechnological uses of growth hormone.
1,435 words (approx. 5.7 pages), 12 sources, MLA, $ 47.95
»
Click here to show/hide summary
Abstract
This study helps to ascertain whether the use of growth hormone has any beneficial effect on those who wish to use it for cosmetic purposes. The paper further discusses whether its use should be restricted to those who have deficits in their body's secretions of somatotropin as children.
From the Paper
"Dr. Richard Sadovsky, in the journal, American Family Physician treats children to improve height velocity and bone maturation in children. However, he says "the use of growth hormone in children with non-growth hormone-deficient short stature is controversial." He cites a study by Kawai and Associates with 27 boys of short stature that were divided into a control group that received nothing that would affect growth or bone maturation and a treatment group that received pituitary-derived or recombinant human growth hormone five or six times every week for 3.5 to 4.8 years. The surprising findings were that growth hormone therapy during prepubery did not improve height and actually resulted in shorter final height than what would have been attained naturally. "This may be the result of accelerated bone maturation and reduction of the duration of puberty." Rosenfeld, who conducted the study, commented that short children with normal growth velocities may be negatively affected by "the early and rapid pubertal progression caused by growth hormone therapy." Those involved must carefully select the children, as the time that they utilize this drug affects and is affected by puberty. (Sadovsky 1997)"
| |
|
Periodontal Disease and Low Birth Weight, 2007.
This paper discusses a research report on "Periodontal Disease and Prematurity among Non-smoking Sri Lankan Women" by P.S. Rajapakse, M. Nagarathne, K.B. Chandrasekra, and A.P. Dasanayake.
1,898 words (approx. 7.6 pages), 6 sources, APA, $ 60.95
»
Click here to show/hide summary
Abstract
In this article, the writer examines the research in the article "Periodontal Disease and Prematurity among Non-smoking Sri Lankan Women". The writer discusses the hypothesis that periodontal disease has a role in causing preterm low birth weight deliveries among rural primi-gravida women who are free of tobacco, alcohol, and drug use. The writer notes that various factors have been associated with the delivery of preterm and low-birth weight infants and the role of infection is receiving increasing attention. The writer concludes that the data and statistics presented link periodontal disease as one of the contributing factors for preterm low birth weight deliveries. Further, the writer maintains that this study can educate mothers that even if they feel they are perfectly healthy and free from smoking, alcohol consumption, and drug use, they are not guaranteed to have a term infant with normal weight.
From the Paper
"Periodontal disease is associated with a chronic Gram-negative infection of the periodontal tissues which results in long-term local elevation of pro-inflammatory prostaglandins and cytokines and an increase in the systemic levels of some of these inflammatory mediators. Hence, periodontal disease has the potential to influence preterm low birth weight through an indirect mechanism involving inflammatory mediators or a direct bacterial assault on the amnion which is suggested in this study conducted in Matale, Sri Lanka. 227 subjects were studied, resulting in a cohort of 66 subjects with the exposure and 161 without the exposure. In this study, the authors observed a higher proportion of preterm low birth weight among subjects with higher pocket depths, plaque, and bleeding scores (the exposed group). This can be linked to a series of animal and clinical studies by Offenbacher and co-investigators that indicate an association between periodontal infection and adverse pregnancy outcome."
| |
|
HIV Infection, 2007.
This paper examines the HIV disease and discusses related aspects.
3,172 words (approx. 12.7 pages), 9 sources, MLA, $ 91.95
»
Click here to show/hide summary
Abstract
In this article, the writer presents a brief history of HIV and discusses the treatment options that exist throughout the world. The writer addresses the quality and quantity of life as it relates to treating the disease. The writer concludes that HIV is a very serious illness that leads to AIDS and ultimately death. The writer further notes that the research indicates that while the number of people receiving treatment has increased in recent years there are still challenges associated with obtaining the treatment that is needed. The research also suggests that the development of a successful vaccine is near.
Table of Contents:
Introduction
Brief History
Treatment
Status for treatment overall
Cost associated with these drugs
HIV VACCINE
Conclusion
References
From the Paper
"Overall when people are diagnosed early with HIV they can live for 10 years or more before being diagnosed with AIDS. Sadly in many cases people are not diagnosed early and in many cases when they are diagnosed they do not have access to the drugs that will increase their life spans. When people who are deteriorating because of the effects of the disease, receive treatment the results can be drastic particularly for children. People on he medication experience weight gain and a greater amount of energy. Overall when people who are HIV positive receive treatment their quality and length of life improve."
|
|
|
