This paper provides background on the basic mechanisms of speciation and then compares the three different ways that species can form in plants and animals.
3,360 words (approx. 13.4 pages), 5 sources, 2001, $ 95.95
Abstract This paper examines the three basic steps required before speciation: geographic or genetic isolation of individuals, either through a physical barrier (as in allopatric speciation) through differential habitat preferences (as in parapatric and sympatric speciation) and genetic divergence.
From the Paper "The Earth is home to an estimated 13 million species. The roots of this remarkable biodiversity can be found in the process of speciation, the slow accumulation of genetic differences that eventually prevents the exchange of genes between two populations of plants or animals. Speciation results when genetically diverse groups of individuals become reproductively isolated from one another. This isolation can be caused by extrinsic factors, such as geographical or temporal separation, or intrinsic factors, such as differences in courtship signals or dispersal ability. For both plants and animals, speciation can be allopatric if populations become separated due to geographic isolation, parapatric if hybrid zones are formed in areas of habitat overlap, or sympatric if niche specialization and reinforcement of reproductive isolating mechanisms takes place."
Abstract This paper presents a detailed examination of the methodological strengths and drawbacks of participation observation. The writer uses examples to introduce the link between ethnography and participant observation. In addition, several practical issues including gaining access to and being accepted by the group are highlighted.
From the Paper "Many of the things we now know about life were derived from research that was done to discover the answers. The things we like, the products we purchase, the way therapy is handled, and thousands of other decisions are made in part because research determined what would be best or what we want most. Research is the cornerstone of civilized society and there are many approaches that can be used."
Abstract This essay addresses the overwhelming effects of population growth as a direct result of globalization. As possible solutions, better family planning and national health care programs are suggested. Issues such as education, sex, and race are taken into consideration.
From the Paper "In an increasingly expanding global community, one subject above all others, must be addressed in order to secure the progression of the human race as a whole. Population stabilization, although not an immediate concern in the United States, is nonetheless a major threat to our world. Statistics project that the global population will increase at about a quarter of a million people each day for the next twenty years and henceforth one can easily assess the urgency of the situation. The most effective means through which stabilization can be achieved is through the implementation of national strategies geared towards family planning and health care programs."
Abstract This paper presents an overview of the disorders Bulimia nervosa and Hypothyroidism, including a description of both syndromes and their effects (diagnoses/onset of Bulimia and role of thyroid gland), as well as a review of various research findings interconnecting the two. In particular, long term damaging effects of Bulimia such as low blood sugar and hyperglycemia, lower resting metabolic rates, and malnutrition are examined in order to correlate it with the possible onset of hypothyroidism.
From the Paper "A brief description of Bulimia Nervosa according to the latest DSM IV entails recurrent episodes of binge eating characterized of larger than normal portions in shorter than average time spans. These episodes are accompanied by a lack of control over feeding behavior and typically followed by a period of compensatory behavior such as self-induced vomiting; misuse of laxatives, diuretics, enemas, or other medications; fasting, or excessive exercise. Binges and purges occur in ongoing cycles for an average of at least twice a week for three months. An onset of bulimia usually occurs in later adolescence and more prevalent in females. People suffering this condition may or may not be overweight and may or may not have suffered previously or are concurrently suffering from Anorexia Nervosa."
Abstract This paper discusses a plan to implement an emergency disaster management system at a large hazardous chemicals plant in New York. The author includes specific steps that need to be taken, assigns roles, instructions for emergency response, etc.
From the Paper "The plan should also contain detailed building plans of the chemical plant, so each team member knows the layout of the buildings. These layouts will include all storage areas, aisles, entrances and exits, windows; fire extinguishers, fire alarms, sprinklers, smoke/fire detectors, annunciators; shut-offs and master switches for power, water, gas, HVAC (heating, ventilation, and air-conditioning) system, and elevator controls, etc. There should also be a detailed list of keys needed for entry to any and all buildings, and their locations."
Abstract This paper addresses the issue of rapidly diminishing national boundaries in an increasingly globalized community. The author suggests a cosmopolitan model as a possible solution.
From the Paper "Our world is in a continuing state of change. This change is evident on various levels and has harbored itself most prominently in the vessel of political communities. As our global community pushes for a faster, simpler, more efficient way of life, we find ourselves face to face with various nation-states across the globe. We are witnessing the melding together of national communities on an international level as issues continue to break through the confines of national agenda and pose themselves as threats to the vital planetary interest. Globalization has become a major player in today's political forum and the changes it has spurred necessitate a reevaluation of our present democratic system."
This is a research paper outlining the current issues in mental health, like the stigma that those afflicted will face. The paper looks at who was more likely to stigmatize based on age, sex and experience with mental health.
Abstract This study examines who is more likely to stigmatize the mentally ill according to their experiences. Specifically, the study examines the level of knowledge each participant has about mental health issues and their viewpoints on the mentally ill, and whether it is related to gender.
From the Paper "Stigma, has "traditionally been defined as a sign or mark that designates the bearer defective, and therefore as meriting less valued treatment than normal people" (Heatherton 2000:88). This view of an individual is apparent in all societies. The actual experience of stigma is common. Virtually everyone has experienced some form of stigmatization. Whether it is our personality, our dress, or our economic status. However it has been the mentally ill and former mentally ill individuals who "have traditionally been degraded and rejected; they have experienced prejudice similar to that experienced by racial and ethnic minorities" (Heatherton 2000:103). It is a fault in society to assume that everyone stigmatizes in the same way. It is the way we socialize our children that anyone different is less of a person. The mass media constantly characterizes the mentally ill as "sick", "dangerous", "worthless", "unpredictable" (Heatherton 2000:103). Literature found on mental illness usually states that stigma for the mentally ill is common to all society, but a closer look shows that it fails to differentiate between its origins. Specifically that everyone looks at the mentally ill the same way: that they are negative and violent."
Abstract The human brain is mind boggling when one thinks of all the intimate parts and how they affect learning. The study of Neuroanatomy of the brain and learning styles helps individuals to try to understand their individual dominance in right/left hemisphere. The paper studies several sources of literature where experiments were carried out to test right/left dominance, and discusses their results. Methods used by psychologists such Nagae are also discussed.
From the Paper "In this study students were instructed to make a fist with their thumb pointing upward at an arms length away. Once they lined up with the target, they were asked to close their left eye and decide if it was still on target. Once they did this, they were asked to line up their thumbs on target and asked to close their right eye. Which eye was closest to target? They divided the students into right/left and mixed dominant sections. The students were then told how to do create a hypercard. The assignment was to create a sales presentation to an imaginary client. They were asked to indicate their right/left or mixed brain dominancy.
"The findings demonstrated the right-brain dominant individuals outperformed the left-brain and mixed-brain dominant students."
Abstract The paper starts with a general discussion of reading comprehension and its importance for academic success. Factors involved in reading comprehension, such as phonological memory and word recognition, are examined, as well as other influential forces, such as time limitation and silent reading are outlined. Then the topic of comprehension of fiction versus non-fiction material is explored through a review of the relevant literature.
From the Paper "Literacy and reading comprehension are subjects that have been explored for decades. Through these explorations we have discovered that comprehension is an essential component in the ability of a person to succeed in academia and in life. Comprehension is defined as "the act or action of grasping with the intellect"the capacity for understanding fully.?(The Dictionary) Comprehension is important because it allows us to gain knowledge of new concepts; without comprehension it would be impossible to learn anything.
"This discourse will present a literary review of the aforementioned topic so that we can understand comprehension and the effect of comprehension on academic success. The literature presented will seek to display this information in a manner that will inform and enlighten.
Reading comprehension covers a broad range of topics. For the purposes of this literary review we will seek to explain what comprehension is and the effect that fiction and nonfiction works have on comprehension. This review will use a wide range of sources including journals, digests and academic studies."
Abstract This paper examines psychological theory on the development of inferential reasoning skills. The pragmatic view and the natural logic view are discussed. The work of Shaw-Jing and Cheng as well as the work of Braine are presented.
From the Paper "The Development of deductive reasoning skills has been of interest to psychologists since the 1960s. There are two contrasting views on the development of reasoning skills. The first is the pragmatic view, which proposes that pragmatic rules develop first and that these then generalize and develop into formal rules. The natural logic view is that a set of formal rules develops first and that pragmatic rules follow. Many studies prior to the one conducted by Shaw-Jing and Cheng attempted to explain the development of logic using one of these two models."
Abstract This paper discusses sexual molestation of children. It provides a review of pertinent literature and quotes statistics relating to sexual offenders and victims. The paper outlines a proposal for a research, the purpose being to discover if females who are sexually abused before puberty are more likely to become sexually promiscuous when they begin the pubescent stage compared to females who were not sexually abused before puberty.
From the Paper "Child sexual abuse, CSA, is said to occur when children experience sexual contact with an adult or an older child through coercion or deceptive manipulation at an age and stage of development at which the child does not posses sufficient maturity to understand the nature of the acts and therefore are not able to provide informed consent. Physical force is often not necessary due to the fact that the perpetrator is likely someone with whom the child has a trusting relationship and who is in a position of authority over the child (Arcus 1998). "The type of sexual contact may involve intercourse, touching or fondling the genitals or secondary sex organs with hands, mouth, or objects, or being forced to perform sexual acts with another person" (Arcus 1998). A child may be coerced into disrobing and exposing themselves, or watching adults disrobe or engage in sexual activity, thus contact may not involve actually touching the child."
Abstract This paper is based on the hypothesis that teenage males who are socially excluded in schools become more aggressive toward individuals and may become bullies. This paper provides a thorough study into this hypothesis using a literature review, methodology, questionnaire and measures to validate the argument. Statistics are also provided and examined. The limitations of the study are presented along with its findings.
From the Paper "Ricky was a student that suffered with asthma. Often he had to use his inhaler to be able to breathe. Ricky was tormented by a group of male bullies. This group of boys who were continually would take his inhaler medication from him to play with it by spraying classmates or themselves. They essentially wasted the inhaler that was vital for Ricky. This went on until one cold day in December 1994. Ricky was found dead at school. He died of an asthma attack. His inhaler was found empty (Noll 2000). In the past research has shown a correlation between problems in the home and aggression in the adolescent. However, it has been overlooked that many children are daily abused by verbal and physical acts of violence in the schools. "Between 1979 and 1991, nearly 50,000 American children were killed by guns"more than the number of Americans killed in Vietnam in 25 years? (Webber 1997). Research shows that boys who are bullied during the elementary school years may become aggressive during the middle school or high school years. The number of violent acts in schools is continuing to grow. It is important to recognize why students are becoming more violent and to take measures in preventing these acts of violence. "Few schools take the necessary steps to screen routinely for students displaying risk for these behaviors, and interventions, when implemented are often less than effective" (Acker and Talbott 1999). More research should be done considering this topic to prevent further school violence."
From the Paper "Research Proposal:
Acculturation of Iranians in America
Background of the Problem
The United States has been variously characterized as either a "melting pot" or a society that reflects cultural pluralism (Hess, Markson, & Stein, 1990). The "melting pot" model suggests that differences among groups are "melted down" over time and cease to exist, creating a social system of a high degree of homogeneity. In the model of cultural pluralism, it is proposed that the special contributions of immigrant groups and cultures add to the diversity and vitality of American cultural life (Hess, Markson, & Stein, 1990). Cultural pluralism implies an acceptance of differences in relatively personal matters such as food, family, religious rituals, and community associations. Further..."
From the Paper "Purpose
The purpose of this research is to investigate the benefits of soy for menopause and osteoporosis. The technical component for this study is a questionnaire developed by the researcher as a survey instrument to assist in the determining of benefits of soy. Studies have shown the possible potential for soy as a supplement providing relief for menopause symptoms as well as bone loss in osteoporosis; further research is needed to confirm these findings. This project will provide additional support regarding soy benefits.
Review of Literature
This review of the literature will provide information regarding areas of relevance to the research topic, to include.."
From the Paper "Statement of Purpose
Burnout has been described as a state of fatigue or frustration brought about by an individual's devotion to a cause or way or life (or profession) that has failed to meet expectations (Vredenburgh, Carlozzi, & Stein, 1999). It further represents a state in which individuals expect little reward and compensation along with considerable punishment from work because of a lack of valued reinforcement, controllable outcomes, or personal competence (Vredenburgh, et al, 1999). The problem is viewed as significant in a number of fields, especially in education, where research suggests that many teachers leave the profession within a few years of entering (Betancourt-Smith, 1994). "
