Saturday, January 25, 2020

Human sexual reproduction

Human sexual reproduction Introduction In human sexual reproduction, the males always produce sperms and the females produce ovum. Generally, the sperms and the ova are what are referred to as the gametes. These gametes contain chromosomes which are coiled threads of DNA and protein found in the nucleus of the cells. A chromosome is that which carries the hereditary information of an individual and constitutes of densely packed coiled up Chromatin. Sperm and Babys Sex The pairing of chromosomes is responsible for the different sexes evident in the human and widely on most of the animal species. Genetically sperms contain X and Y chromosomes while the ovum contains the X chromosomes alone. An individual with both the Y and X chromosome is referred to as the male while an individual with only the chromosome is the female. During normal fertilization a male always contributes one chromosome while the female contributes the other chromosome. Together they will form an individual. If the male contributes a Y chromosome then the resulting sex will be that of a male since the final set will be XY. However, if the male contributes an X chromosome the resulting set will be a XX and hence a female. A female in all the cases produces an X chromosome. This means the sperm is of importance since it will contribute the all important Y chromosome to male the child male. Possible Complicating Factors Although meiosis is a precise mechanism that separates the two sex chromosomes of a diploid cell into a single chromosome of haploid gamete cells, errors sometimes do take place. Nondisjuction is one of the commonest errors. Nondisjuction is the failure of chromosomes to separate properly during one of the stages of meiosis. This Nondisjuction error can produce gametes that contain either two sex chromosomes or no sex chromosome. Lack of sex chromosomes or having two sex chromosomes is a direct contrast to the normal condition of one sex chromosome. When either of these gametes joins with a normal gamete during fertilization, its result is a person with an abnormal count of sex chromosomes. This leads to a number of disorders. Most common disorders are turner syndrome and Klinefelter syndrome. Victims of turner syndrome are female in appearance but their female genital organs do not develop at puberty. They are also sterile. The turner syndrome is abbreviated as 45X or 45X0, where 0 denotes the absence of second sex chromosomes. People with Klinefelter syndrome are male in appearance and they too, are unable to sire children. Klinefelter is abbreviated as 47XXY. All babies must have x chromosomes for it contains a number of genes that are vital for normal human development. Other disorders, though not very common, which are as a result of nondisjunction are; the Down syndrome, Edward syndrome, Patau syndrome, triple x syndrome and XYY syndrome. Triple X syndrome is as a result of an extra x chromosome in female where as the XYY syndrome is as a result of an extra y chromosome in male. Victims of Edward syndrome usually experience abnormal development of body organs such as kidneys, intestines and the heart . Conclusion An X chromosome is absolutely essential for survival. Sex seems to be determined by the presence or absence of a y chromosome and not by the number of X. chromosomes. An example is the evidence of reported cases of people who have genotypes 48XXXY and 49XXXXY and are male in appearance. The Y chromosome contains a gene that switches on the male pattern of growth during embryological development. If this gene is absent, the embryo follows a female pattern of growth. Reference Komisaruk, B. R. (1986). Reproduction: Behavioral and Neuroendoctrine Behavior. New York Academy of Sciences, Papalia, D. E., Olds, S. W and Feldman, R. D. (2001). Human Development (8th Ed). McGraw-Hill Education

Friday, January 17, 2020

Negative Impacts

Industry production systems are unsustainable which can also have negative Impacts on environments. In response, there has been a rapid growth aimed at getting industry to â€Å"clean up its act†, because enforcement of the environment is growing up only slowly. In addition, the environmental and social performance of enterprises has Increasingly been used as a factor In deciding whether to do business with them, and this means that environmental demands are being made on enterprises.The methodology to be adopted will basically be with relevant, recognizing that they must adapt to the environmental demands made of heir products or of their manufacturing procedures, and to do this they need companies that can offer specialized services relating to the development of various management systems and products.The response to the problems outlined Lies In enabling output to continue to grow while minimizing growth in inputs of materials and energy, and they can support the establish ment of institutions meeting the standards in monitoring the development of environment related In affecting trade, identify gaps In normative laws and regulations and other policies which promote of Industry especially In the support yester by promoting the establishment of specialized enterprises in the 1 org knowledge and skills in enterprises to public-private partnerships in the environment field.Agile Noreen A. Bossily 2012103039 2 The view to the above mentioned, focuses on the paths to industrial development; efficient use of non-energy raw materials and of recycled industrial and non-industrial wastes; adoption of relevant products and technologies to meet environmental standards; adoption of environmental and related management systems with a view to entry into global value chains; and creation of businesses that an offer services. This concludes some challenges faced by some industries to properly utilize resources, which somehow gives opportunities. 4 Introduction ? Tabl e of Contents Definition of Industrial Development 2 Table of Contents 5 Main Body How Industrial Development Through the Years Affect How Industrial Development Made Life Easier Conclusion 11 References ? 12 4 Introduction The unsustainable patterns of industrial development may not have been appreciated until quite recently, it has been recognized since the start of the industrial revolution that enterprises can have obvious and visible impacts on their local communities and environments.As a response to these manifest health and environmental impacts, the last 40 years have seen an unparalleled growth in environmental matter. There has been a growing determination by different stakeholders in the developed countries to use the environmental and social performance of enterprises as a factor in deciding whether to do business with them. The first to feel this pressure are often the transitional corporations and other large companies, but they in turn are exerting a similar pressure on their suppliers. As a result of the globalization of trade, many of these are now located in developing countries.This paper explores in more detail these challenges and opportunities on how can enterprises in these countries become greener and shrink their environmental footprint, while at the same time continuing to grow and deliver goods, services and Jobs to their populations? What were the advantages and disadvantages of industrialization? Answers to these questions must take into account one overriding imperative: that industries need to grow. Industrial development is the only mechanism that will enable developing countries to reduce he level of poverty and hardship they face.This conclusion offers a strategy for the development aid community, which is designed to help developing countries bridge the gap between the present and the future. 6 Industrial development any development of an industrial nature. The industrial revolution led to the development of factories for la rge-scale production, with consequent changes in society. Originally the factories were steam-powered, but later transitioned to electricity once an electrical grid was developed. The mechanized assembly line was introduced to assemble arts in a repeatable fashion, with individual workers performing specific steps during the process.This led to significant increases in efficiency, lowering the cost of the end process. Later automation was increasingly used to replace human operators. This process has accelerated with the development of the computer and the robot. 7 How Economic Development Through the Years Affect the Environment The economic development through the years affected the environment by the increase in population, industrialization started, and the shortage of nonrenewable energy sources. The increase in population means that ore forest and rain forest will be destroyed to make more room for the people to live.Destroying rain forests are bad because forest alone produce s 40% of the world's oxygen. There are now a lot of industries around the world but even though there are so many, it is a big burden to the environment. The burning of gasoline and coal produces carbon dioxide that, over time, has settled in a layer in the earth's upper atmosphere. This creates a situation know as greenhouse effect. The greenhouse effect is a situation in which an excess of carbon dioxide in the earth's upper atmosphere lets the sun's rays through but traps heat close to the earth's surface. Nonrenewable energy resources might run out.This might occur because of the increase and demand in oil which is the basic necessity we all use. We use oil for multiple proposes. Since industries use oil and coal a lot it will eventually pollute everything and will cause acid rain which pollutes the stream. These were some examples of how economic development can led to disasters for the environment. There might be a smudge of a change that this will not happen, but, it is guara nteed that those things would happen. Especially that global warming is already taking place. 8 How Industrial Development Made Life Easier?It would Just be unbearable to think that life would be better without the Industrial Revolution. All the inventions that were invented back then are used all the time. The inventions have greatly changed society. The light bulb was made to create light that would last for a long time and that could be used anywhere. In today's society, people just makes it easier to see anywhere whenever it's the daytime or night time. â€Å"Edition's eventual achievement was inventing not Just an incandescent electric light, but also an electric lighting system that contained all the elements necessary to make the incandescent light practical, safe, and economical. Before it was created, human beings had to use fire and now you're able to Just turn the light switch on and you automatically have whatever lighted. Louis Daggered invented the first camera Just t o capture things for memory. The camera was invented to capture a picture of anything you wanted to save as a memory. In today's world, people use the camera during many special occasions to remember that specific day. It helps a lot because so many people can enjoy or see what an occasion was like even if they weren't there by looking at the pictures.George Stephenson first attempted to create the first locomotive since others who tried failed. The locomotive was invented to try and succeed in an invention but lead to more better things. In today's society, we use the transportation for many reasons. We use it to haul cargo and 9 transport people to many places. â€Å"It was now that George Stephenson, about twenty years of age, set about the construction of his first locomotive. As we before stated, the want of good and skillful workmen was a great Arabica. Before it was invented, it was more difficult to transport anything to different locations. The period of the Industrial Rev olution greatly contributed to the world. It was a revolution which helped everyone in a positive way no matter what the situation was to them. Society became easier and less hard to live by having many inventions do our hard work for us. 10 Conclusion The Industrial development was a mixed blessing. It has its advantages and disadvantages; through this study I was able to appreciate the efforts of the inventors Just to make our life easier and more comfortable.Throughout those years everything were created and studied well, yet we were not able to see the needs of our environment while we were all happy inventing and making technologies as much as we want. The industries were able to brought countries and people together. There was an international awareness among people because developments in one country influenced the others, there were better transport, communications and mechanized goods made life comfortable for man. Unfortunately cities became crowded, smoky, with problems o f slums, housing, sanitation, accidents and epidemics.

Thursday, January 9, 2020

Observing A Right Hip Fracture Repair - 963 Words

Operating Room Observation Experience This past week, I was able to observe a right hip fracture repair. The patient had broken his hip and was undergoing surgery to place screws and plates into his hip. I was able to see the whole process through the preoperative, intraoperative and postoperative stages. The preoperative stage is when the patient comes to the OR and is being prepped for the surgery. The patient is verified by the nurse, who needs to check patient identification, patient records and make sure is calm for the surgery. Before this particular surgery, the anesthesiologist came down before the surgery to administer a block to the patient. The block is to dull the nerve ending so when the patients comes out of surgery he will be in less pain. The consent form is signed by two people, the patient and the doctor performing the surgery. The consent form is the responsibility of the doctor, the nurse just verifies that both the doctor and the patient signed the form. It is ve ry common for a patient to be anxious right before a major surgery. My patient didn’t seem anxious but just wanted it to be over and done with. One of the most important part of a nurse’s job is to keep the patient calm and relaxed. That can be accomplished just by talking to them and reassuring them. Keeping the patient company will also ease their nerves. The nurse makes sure the patient is calm and relaxed right before surgery. It is also important for the holding area nurse to make sureShow MoreRelatedAnterior Cruciate Ligament Injury?2540 Words   |  11 Pagesstrengthening, balancing exercises, and getting enough rest between performances and/or practices (McDaniel et al. 2010). Reconstruction of the ACL is most likely necessary, especially if the patient is an athlete wanting to return to sports performance. Repair of the ACL once it has been torn is not possible—once the ligament is torn, the blood supply to the ligament diminishes, and the ligament becomes nonviable (McDaniel et al. 2010). Reconstruction requires a new graft, and graft selection depends onRead MoreHesi Practice31088 Words   |  125 Pagesrequirements increase greatly during labor. 3. A client with left-sided heart failure complains of increasing shortness of breath and is agitated and coughing up pink-tinged, foamy sputum. The nurse should recognize these as signs and symptoms of A. right-sided heart failure. B. acute pulmonary edema. C. pneumonia. D. cardiogenic shock. 4. What s the most appropriate nursing diagnosis for a client exhibiting obsessive-compulsive behavior? A. Ineffective coping. B. Imbalanced nutrition: Less than bodyRead MoreAutobilography of Zlatan Ibrahimov ic116934 Words   |  468 Pagesworked out for me. --------------------------------------------------------------------------- CHAPTER 1 Pep Guardiola, the coach in Barcelona, with his grey suits and troubled face, came up to me looking concerned. I thought he was all right at that time, certainly not a Mourinho or Capello, but an ok guy. This was way before we started our war. It was the fall of 2009 and I was living my childhood dream. I was playing in the best team in the world and had been welcomed by 70 000 peopleRead More_x000C_Introduction to Statistics and Data Analysis355457 Words   |  1422 PagesCompositor: Newgen–India Printer: Courier Corporation/Kendallville  © 2008, 2005 Duxbury, an imprint of Thomson Brooks/Cole, a part of The Thomson Corporation. Thomson, the Star logo, and Brooks/Cole are trademarks used herein under license. ALL RIGHTS RESERVED. No part of this work covered by the copyright hereon may be reproduced or used in any form or by any means—graphic, electronic, or mechanical, including photocopying, recording, taping, Web distribution, information storage and retrievalRead MoreLogical Reasoning189930 Words   |  760 Pagesbuild upon this work. An earlier version of the book was published by Wadsworth Publishing Company, Belmont, California USA in 1993 with ISBN number 0-534-17688-7. When Wadsworth decided no longer to print the book, they returned their publishing rights to the original author, Bradley Dowden. The current version has been significantly revised. If you would like to suggest changes to the text, the author would appreciate your writing to him at dowden@csus.edu. iv Praise Comments on the earlier

Wednesday, January 1, 2020

Academic Institutions and Education - 984 Words

Academic institutions are posed with the responsibilities of ensuring that all its students gain meaningful education. Education, takes place in many forms and one of these ways is through extra curricula activities and/or involvement. Co-curricular learning can be highlighted in participation in student groups including student government, departmental groups, interest groups, honor and recognition societies as well as pan-hellenic organizations-sororities, fraternities. The Adviser Often times, participating in groups can develop a number of professional skills which can transcend college. Student groups are also a great way to foster interpersonal relationships and to be involved in the academic atmosphere. But the groups do not run on their own. In fact, they are normally headed by a governing body including an adviser. Advisers are faculty or staff of the institution who have agreed to dedicate time and effort in carrying out or in ensuring that the mission and goals of the group are carried out successfully. With some colleges housing more than 100 groups or student organizations, there is a great need for student group advisers. The University of California-Los Angeles alone has 800 registered groups. The structure of the institution would determine the goals of the adviser. For instance, a more culturally diverse population would call for an adviser attuned to the needs of the institution and the students as well as be able to forecast additional actions that mayShow MoreRelatedWhy Plagiarism Is Important For Academic Integrity?1731 Words   |  7 PagesWhat is the Role of Plagiarism in regards to Academic Integrity? 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