Abstract This paper reviews, discusses and analyzes the effect that chemicalfertilizer has on the aquaticlife in the water surrounding the areas that have been treated by such fertilizers. The paper provides an overview of water systems and how they function, followed by a discussion of the different types of chemicalfertilizers in use today.
Outline:
Introduction
Review and Discussion
Conclusion
From the Paper "The quality of water systems is determined by the degree to which bodies of water are able to support aquatic life while also meeting standards for the protection of human health and the preservation of human life; this level of contamination is determined by establishing baseline standards to measure the periodic relative quality of each individual water system against these original standards (Henning & Mangun 251). Attempts to either maintain or restore the quality of the water in these systems are developed according to the amounts and kinds of material that are emptied into the waterways; the quality of water in streams, rivers, lakes and oceans therefore depends on the capacity of each of these water systems to clean themselves of the various pollutants. According to Henning and Mangun, this ability depends on the types and amounts of the pollutants as well as with water temperatures, rate of water flow, degree of sedimentation, and mineral content (251). The mineral content of pollutants containing chemical fertilizers already account for the lion's share of the nitrogen being released into the world's water systems, but there are other elements involved in modern chemical fertilizers as well, and these are discussed further below."
Abstract This is a detailed and illustrated paper on using organic fertilizers instead of chemicalfertilizers on plants. Results of experiments concerning this topic are included with the paper.
From the Paper "Organic fertilizers can provide enough nutrients to plants, that is the reason why the plants can grow well. Also the organic fertilizers can change the structure of soil and create a good drainage system, and well-ventilated environment which can be a better place for microorganisms to survive. The organic fertilizers contribute a lot to the growth of plants, but they still have some disadvantages. If one adds too much organic fertilizers, the plants will die because the concentration of organic fertilizers is very high."
Abstract This paper is on the job description of an aquatic biologist. It includes the main prospective of the job, how biologists deal with it and what is it all about, the different categories of jobs within the same field, what attracts people to the field of biology, and the requirements to be fulfilled for this job.
Abstract This paper looks at the harrowing effects of chemical warfare and how it changed the face of war during WWI. It gives examples of the types of weaponry used, their side effects and how these have developed to become the destructive arms of today.
From the Paper "According to many of the period's experts, WWI was supposed to be fought by large numbers of men, in a heroic fashion, with the other technologically advanced weapons such as planes, machine-guns and tanks. Instead of the 'normal' war of the attacker winning and the defender put on the run, this war was interrupted by trench warfare and battles of attrition. Trenches were the norm, and to help get battles back to 'natural' means, gas was put into practice to help each side get back into (in their eyes at the time) a more modern conflict. So what were these chemical weapons? How and when were they used? What role did they play in the soldier's day-to-day life both physically and psychologically? "
Tags: bombs, chemicals, france, gas, germany, hague, history, military, trench, war, warfare, wwi
Abstract This paper examines the issues surrounding 'In Vitro' fertilization. It describes what it is medically, who is eligible for this treatment, and the legal ramification of conceiving a child outside the biological uterus. The author writes that IVF often causes birth defects in children.
Table of Contents
Introduction to Infertility and In Vitro Fertilization Causes of Infertility
Indicators for IVF (in vitro fertilization)
Steps in the IVF Treatment
Positive and Negative Effects of IVF Treatment
Conclusion
From the Paper "In vitro treatment is often used as an infertility treatment because "IVF offers couples who cannot have children naturally" a chance of having a baby? and even though fertilization takes place outside the woman's body, the couple will still experience the process of natural pregnancy and conception, as well as the opportunity to conceive their own child. In vitro fertilization also prevents the problem of custody over a child that usually happens when couples adopt or subsist to surrogacy, wherein the child was conceived in another woman's womb (fertility Confidential 2001). These problems are not only legally demanding, but also emotionally straining to couples that have used these measures to have their own child."
Abstract This paper presents an analysis of the fertility rate in Third World countries and its impact on consumers and laborers in both developed and Third World nations. The paper discusses the declining fertility rate world wide, and U.N. population projections. It includes an outline.
From the Paper "A Expanding world population with declining average fertility rates B The majority of the world's population and the highest fertility rates are in the Third World ..."
Tags:fertility rate, population, U.N., IMF, World Bank, literacy, birth control
A review of a study, "Semen Quality of Fertile U.S. Males in Relation to Their Mothers' Beef Consumption During Pregnancy," by S.H. Swan, F. Liu, J.W. Overstreet, C. Brazil and N.E. Skakkebaek, on the effect of diet on pregnancy.
Abstract The paper is a review of a study on the effect of diet on pregnancy and discusses the relation of men's semen parameters to their mothers' intake of beef during their pregnancies. The study, "Semen Quality of Fertile U.S. Males in Relation to Their Mothers' Beef Consumption During Pregnancy," by S.H. Swan, F. Liu, J.W. Overstreet, C. Brazil and N.E. Skakkebaek, which is included with this paper, is well-documented with references and tables. The paper relates that partners of pregnant women took part in the study and recorded whether the male's mother had consumed beef or not and whether or not the consumption of beef during pregnancy had any effect on their son's fertility.
Outline:
Methodological Aspects
Research Design
Methods
Interpretive Aspects
Ethical Aspects
From the Paper "How were issues of reliability and validity of the measures adequately addressed? The deciding variables for the subjects were analyzed statistically, and the mother's beef consumption was compared with their son's recorded sperm concentration. Sub fertile men's sperm concentration was examined in relation to the amount of beef their mothers consumed during pregnancy, and all men's sperm count was transformed with a logarithmic base 10 in order to distribute the parameter more evenly. Other factors taken into consideration in the analysis were the men's age, smoking, alcohol, body mass index (BMI), history of STD, abstinence time, and their own meat consumption. The mother's age, whether or not she smoked, whether or not she nursed her son and her meat consumption were initially examined in the model. This selection of variants was based on their proven importance in past studies, biological plausibility, sufficient numbers and evidence of the effect on the strength of the association with beef consumption."
Abstract This paper discusses the advanced reproductive technologies that enable In Vitro Fertilization (IVF). The author describes the various possible reasons for infertility and indicates that IVF is a favorable solution to such problems. He further examines the advantages and disadvantages of IVF.
From the Paper "With only a 40 percent chance of survival, Lance Armstrong, a noted racer bicyclist, was determined that his name live on?not through newspaper clippings, magazine articles, nor even through awards earned at the Tour de France. Armstrong wanted a child. So, although he had been diagnosed with testicular cancer, he had the foresight to freeze some of his own sperm. Thanks to his planning, in October 1999?his wife gave birth to a healthy son. And Armstrong, having overcome the cancer, can enjoy a baby that would have possibly been only a pipe dream had his wife not been fertilized with her husband's sperm. (Shifting 78). Had his child been cloned, the likelihood of that child suffering cancer in his lifetime could have been avoided.
?By applying decades of expertise in IVF [in vitro fertilization], it's possible to make cloning as safe and efficient for people as are other reproductive technologies. ?Some IVF physicians already screen human embryos by plucking out one cell and checking it for specific mutations before placing the rest of the embryo in a woman's uterus.? (Travis 250)."
Abstract This paper takes a look at the artificial method of reproduction, in vitro fertilization, or IVF. Reasons why one might turn to IVF are listed as well as the usual pre-requisites clinics doctors might require before IVF treatments can commence for a couple. The author describes the process of getting IVF treatments and also touches on the objections that some Christian groups have regarding IVF.
Outline:
The Process
Controversy
Bibliography
From the Paper "In Vitro Fertilization is an artificial method of reproduction, usually used when other attempts at assisted reproduction have been tried without success. In Vitro fertilization usually involves ripening the female's eggs, then removing them from the body, and then fertilizing them outside of the female's womb. The eggs are then replaced within the womb; several are usually inserted at once, since this makes it more likely that a pregnancy will result."
Abstract This paper presents a review of legal issues surrounding a chemical castration law for the state of California. It looks at the design of the law as a measure to protect children from sexual offenders. The paper looks at current methods of chemical castration, the vagueness of the law and the question of whether chemical castration is a treatment or punishment.
From the Paper "Today as it tries to deal with the reality of the sexual abuse of children within its borders the state of California is faced with a quandary. On the one hand the sexual abuse of children is an appalling fact that devastates thousands ..."
Abstract This paper shows that one of the main concerns in Chemical Mechanical Planarization processing is the material removal rate (MRR). The paper also critically reviews the existing MRR models of CMP and compares the assumptions, application aspects and limitations of the two groups? models.
From the Paper "Chemical Mechanical Planarization (CMP) is the process of surface smoothing and planing by a combination of mechanical action and chemical dissolution. This process is achieved by rubbing a work piece against a polishing pad under load in the presence of chemically active slurry containing an abrasive. CMP is one of the most effective planarization technologies for achieving smaller feature size for the integrated circuit (IC) industry. "
Abstract Mosquitoes are insects that have been around for approximately 30 million years. Mosquitoes can sense carbon dioxide and lactic acid up to 100 feet away. If a person wears light or white clothing, mosquitoes can see him/her and zero in on him/her. Mosquitoes can detect heat. One way to stop mosquitoes is to confuse their chemical receptors.
Tags: NURSING, HEALTHCARE / HEALTH AND HEALTHCARE ISSUES, chemical mosquito pesticides
Abstract This paper describes chemical warfare in insects. The paper begins by offering a definition of the chemistry of vision. Next the paper discusses the role of polycyclic aromatic hydrocarbons in cancer. Then the paper explains the effect of chlorfluorocarbons on the ozone layer, nature, chemistry and sources of petroleum.
Tags:chemical warfare among insects, chemistry of vision, polycylic aromatic hydrocarbons and cancer, chlorofluorocarbons and the ozone hole, petroleum
Abstract This paper discusses the philosophy of good life given by the great thinker Aristotle. It looks at Aristotle's view that there are certain external and internal goods available to man, and it is through the attainment of internal goods that man is able to live a life that can be identified as a ?good life?.
From the Paper "Aristotle was the prized student of Socrates and his works though are not widely available are still considered to be of great significant to the world of euphemism. The philosophical thought is incomplete without the works of Aristotle as his contribution is huge and some of his views are studies even today by the students of philosophy. Aristotle's theory of a good life is based one certain actions and virtues which fall in the realm of ethics. It was the view of Aristotle that good life means a man should act while in possession of certain external goods. By this it means that one should possess all moral and intellectual virtues in order to qualify as someone with a good life. The moral virtues to him were prudence, justice, fortitude and temperance. All these virtues are based on reason and it was the Aristotelian view that reason and logic should be given precedence over passion. Intellectual virtues are based on pure theoretical contemplation and they cannot be considered very practical as they seem to arise from Aristotle's views on logic and a Stoic philosophy which meant that man must first not act purely on impulse or passion but should think carefully before acting."
Abstract This paper takes a critical look at the book "Rare Earth: Why Complex Life is Uncommon in the Universe", by Peter Ward and Donald Brownlee. It discusses their theories of the beginning of life on Earth and additional theories to life on other planets. It challenges their research and data and offers other explanations and theories.
From the Paper "Was the occurrence of complex life on the planet Earth an isolated event or simply the next logical step in evolution? Ward and Brownlee seem to believe complex life is unique to our home world or at least extremely scarce in the Universe.1 In addition to the factors in their Rare Earth equation, mentioned in their book are some specific factors peculiar to Earth that may have affected the development of complex life. Beginning with the planet Mars, W&B argue that the fossil record shows that the cooling Earth developed bacterial life as soon as conditions permitted. They suggest that this may be because the bacteria first developed on Mars, which cooled earlier, and that perhaps Earth was then seeded with these bacteria carried by meteorites reaching our planet after having been ejected from Mars by asteroid impacts. The low gravity of Mars makes this more likely, and it is estimated that ten percent of meteors ejected from Mars may impact Earth. A system lacking a Mars-like planetary companion might have been slower to develop bacterial life."
