HUMAN REPRODUCTIVE BIOLOGY QUESTION ASSIGNMENT Example | Topics and Well Written Essays - 750 words

HUMAN REPRODUCTIVE BIOLOGY QUESTION - Assignment Example Unlike meiosis which occurs in the gamete cells. The first mitotic stage is prophase. During this stage, the observable changes include the fading of the nucleolus while the chromatin material condenses together and forms the chromosomes. A chromosome is made up of two chromatids which have identical genetic material. Another significant change is the disassembling of the microtubules of the cytoskeleton. These are responsible for cell shape and motility. After this the cell moves to the next stage. Metaphase is the second stage in mitosis, during this stage, the nuclear envelope breaks making the nucleus no longer distinct. Another notable change is the elongation of spindle fibers. These elongate from the centrosomes and attach themselves to the kinetochores. After this, all the chromosomes are aligned in one plane at the center of the cell. This is due to the tension created by the spindle fibers. In anaphase, the third stage in mitosis, the spindle fibers shorten. The chromatids are pulled apart to opposite poles of the cell. In telophase, the fourth stage in mitosis, the daughter chromosomes are at the poles. The spindle fibers degenerate. Cytokinesis involves, the cleavage of a contractile ring that cleaves into the two daughter cells. After this microtubules responsible for cell shape reorganize it. Mitosis is important for growth and repair in eukaryotic organisms. The daughter cells have same number of chromosomes as their parent. It is important to note that unicellular organisms also use mitosis for reproduction. This is the type of cell division that divides the number of chromosomes by two. It occurs in gamete cells. Unlike mitosis, meiosis occurs in phase I and phase II of all the stages discussed in mitosis. The result is that the genetic material is divided by two. Prophase I: Chromosomes become visible at this time due to the condensation of the chromatin material. During the S phase, the chromatid duplicates so they are two

Detainees in Afghanistan Research Paper Example | Topics and Well Written Essays - 1750 words

Detainees in Afghanistan - Research Paper Example The collection of materials is primary objective of the HUMINTS and should be pursued with due diligence in order to enhance the credibility of their findings. The purpose of the human intelligence should be intended to enhance human and technical collection techniques with due respect to the national laws. Collection of Information Collection of information is the major duty of HUMINT operations and it must be done with utmost care to safeguard their operations and yield good results. The credibility of collected information is vital to the success of the HUMNT operations and must be safeguarded at all costs in their operation. This is because this is their core mandate in their operations both nationally and internationally. The elements of the intelligence community are authorized to collect and retain any information based on the command of the organization in which they work for and the interest of the information they pursue.2 The procedures or information use and retention sho uld also be done after the consultation with the attorney general of the concerned state. Such procedures protect constitutional and other legal rights and limit the use of such information to unlawful government purposes thus infringing the rights of the victim. The use of electronic surveillance is only limited for the purposes of training, testing and conducting countermeasures to hostile electronic surveillance and is thus avoided in most instances. Inconsequential physical searches by the elements of intelligence community are also highly restricted by the law. The attorney general is delegated the power to give the necessary legal assistance and advice in the operations of the HUMINT practices. The elements of intelligence services are expected to cooperate with other appropriate law enforcement agencies for the purposes of protecting information and property of any element of the intelligence community. The members of the intelligence are authorized to provide special equipme nt, technical knowledge and necessary assistance when the lives of the suspects are endangered and support the local law enforcement agencies in necessary sectors. The provision of personnel services is limited to the approval by the general counsel in the concerned cases. The intelligence members are permitted to render any assistance and cooperate to law enforcement agencies and other civil authorities not precluded by the law in the course of their services.3 All the operations of the human intelligence members are required to be consistent with the law and any act of violation of the constitution is punishable by the courts of law. The participants of human intelligence services are not entitled to join or participate in any organization as they wish in the course of their operations. This can only be done in accordance of the procedures established by the head of intelligence and should be of the interest of the intelligence services. HUMINT Military Regulations The HUMINT has got various limitations and capabilities with regard to military operations in any part of the world. They have the ability to collect information and cross cue from endless variety of potential sources in all respects including detainees and related documents. They are to focus on collection of information not available by other means which includes information on threat intentions

Disscussion Question 1 Week 3 Assignment Example | Topics and Well Written Essays - 250 words

Disscussion Question 1 Week 3 - Assignment Example From the funding, small businesses are able to increase their performance and operations width. In the current economy, it would be risky to expand operations in a business without proper funding (Bruchey, 2003). The funding gives small businesses the confidence they need to venture into high rewarding business ventures. Apart from the financial offering help, the SBA has much greater significant. The body offers business resources which are at the disposal of the small businesses. Additionally, the body plays the advocate for businesses in the government. The body also develops programs which are of great help to small businesses and offer direct loans (Bruchey, 2003). As a small business owner I would request for the help of the SBA. Firstly, I have to generate a business plan with future prospects of profit making. It would be advisable to ask for a suitable financial program and plan before asking for financial assistance. With an advised operating and financial program I would then request for a loan to foresee the drafted financial program by the

Compare and contrast at least two types of industrialization strategy Coursework

Compare and contrast at least two types of industrialization strategy - Coursework Example Further more, it will explain the advantages of the strategies and how different countries have used them to ensure that they are doing well economically. At the end of it all, it will give a clear picture to which strategy can work best for countries thus the comparison of the two strategies. Industrialisation is a process that allows people within a society to change their social and economic status. Industrialisation is a great contributor to modernisation of an area. People go through changes like better and stronger buildings, more intensified machines for processing things, better technology, and large scale production of energy like electricity and better communication and transportation channels. It is also a major contributor to cultural changes that is, with industrialisation, many people change how they view and do things. Their attitudes change completely. Industrialisation comes in with the influence of politics, skilled labour and large scale production with low costs. Industrialization is a major contributor to the economic welfare of a country. Thus many economists attribute economic success to good industrialisation processes1. There are two main industrialization strategies that can be discussed and have been used by many countries to uplift their econom ic status. The ISI strategy is also known as the import substitution industrialisation while, the EOI strategy that is also known as export-oriented industrialization1. Import substitution is an economic strategy that involves a country coming up with trade policies. It is the attempt a country makes to ensure that it produces its own materials instead of importing. It tries to copy how other countries are producing certain goods and products thus start its own production within the country. It involves a lot of government spending in producing the goods. It requires acquiring the

Arab spring Annotated Bibliography Example | Topics and Well Written Essays - 500 words

Arab spring - Annotated Bibliography Example The authors argue that todays students require an altogether different training than the students who preceded them. They say that the 21st Century education is of low standard, The article analyse a person desires yearnings, academics, disposition, values, convictions, social life, attitude and governmental issues, this book paints a faultless representation of todays people. The book offers advice on how to handle current students. The authors of the article Tarek al-Tayeb Mohamed Bouazizi, a Tunisian road seller who sets himself ablaze on 17 December 2010, in challenge of the appropriation of his wares and the badgering and mortification that he reported was delivered on him by a metropolitan authority and her helpers. His protest turned into an impetus for the Tunisian Revolution and the more extensive Arab Spring, actuating shows and mobs all around Tunisia in dissent of social and political issues in the nation. General societys resentment and roughness strengthened emulating Bouazizis passing, heading then-President Zine El Abidine Ben Ali to venture down on 14 January 2011, following 23 years in power. This source was useful because it inspired protests in several other Arab countries, plus several non-Arab countries. The young Tunisian man acts as a role model in fight for human rights and freedoms. According to this article The Worlds Muslims: Unity and Diversity, Pew Forum estimates that 87-90% of the world’s Muslims are Sunnis, while 10-13% are Shias. This new study of Muslims by Pew explores the religious practices and beliefs of the world’s 1.6 billion Muslims. While there is broad agreement on core tenets of Islam, the study also finds that Muslims differs significantly on the importance of religion in their lives and on the groups and practices they accept as part of Islam. The survey was conducted in 39 countries or territories with substantial Muslim populations and

The Perfect Copy (Unraveling the Cloning Debate) by Nicholas Agar Essay Example for Free

The Perfect Copy (Unraveling the Cloning Debate) by Nicholas Agar Essay Nicholas Agar is a professor of ethics and a senior lecturer at Victoria University of Wellington (VUW). Agar has an MA from VUW and a PhD from the Australian National University. He has been teaching at VUW since 1996. He has been known as an expert writer particularly in the field of genetics and ethics. In his book The Perfect Copy: Unraveling The Cloning Debate, he attempts to unravels the science and the ethics of cloning and proposes ideas on how we should face this highly controversial topic.   To clone or not to clone, that is the question that is in the center of one of the most controversial debates within the scientific community today. The present technology today has given our imagination an opportunity to deal with the perils and possibilities of cloning. Even Hollywood has ridden the cloning bandwagon and has turned out many films which exploit the topic.   Although these films are a departure to what is possible, they still manage to pique our imagination and implant in us false notions and promises. These past few years, with the advances made in regards to cloning, the ethics of this act has become a great issue. Both sides present valid reasons to defend their claim. The debate over the morality of cloning human beings becomes a debate over contrasting images of cloning. The method of moral consistency may not give us a simple permitted or not permitted answer. The reason is that no single familiar practice will resemble cloning in every morally interesting respect. In all likelihood, we will end up constructing a moral image of cloning out of a variety of familiar activities and practices. It is often pointed out that cloning differs from the natural sexual way of having children. Some say that this unnaturalness alone suffices to make cloning wrong. A solid rebuttal to this is that things deemed unnatural but have received no objection like insulin shots, airplanes, and life saving medicine are a integral part of mainstream society. If you would follow the unnatural proposal, these things must also be unallowed. The main concern in ethics is the unease which people have regarding cloning. This instinctive revulsion is said to be due to ingrained wisdom or to an upset stomache. Agar argues that if this was the basis to oppose cloning, then it is very unscientific and flimsy. Moral progress is all about subjecting sub-rational moral urges and aversions to rational scrutiny. The word clone obtains it etymological origin from the greek word klon meaning branch. Clones are copies of organisms currently or previously existing with the exact same nuclear DNA. They do not result from a sexually beginning and thus are not genetically different from their parent organism. In our world, clones are the rule rather than the exception. Most low level organisms like algae, bacteria, lower vertebrates, and plants use cloning as a means to ensure their reproductive survival. The case of twins is a clear example of cloning which occurs in nature, even among human beings. Twins come from one egg that divides into two. There is cloning from the moment when multiplication begins to produce two genetically identical children. Cloning ensures that the exact genetic code of the parent is passed on as opposed to sex where only half of each parent is transmitted. This makes cloning more efficient in ensuring the survival of a genetically fit species. One technology that has been used to create clones is reproductive cloning. An example of this is Dolly, the first ever cloned sheep. Dolly was cloned using the process called somatic cell nuclear transfer (SCNT).   A reconstructed egg which derives its genetic material from an adult donor is electrified or treated chemically. The resulting cloned embryo is then implanted unto the uterus of a female host. It is relevant to point out that clones produced by using nuclear transfer technology are not a truly identical clone of the parent animal. This is because nuclear DNA composes only 99.7% of the actual heritable data. The rest are found in genes located in the mitochondria. There are numerous barriers in cloning humans. Aside from the legal and social issues still currently being debated, cloning with today’s technology is also very inefficient and dangerous. Cloning technology today is highly expensive. Also the success rate is dismal with only less than 10% of cloning attempts achieving success. Also, clones have relatively poor health, and are susceptible to diseases, tumors and other illnesses. And clones like the first cloned sheep of Australia have been known to die without known cause. Scientist theorize that these defects are due to errors in the reprogramming process. However there has been several claims by Clonaid and Italian scientists led by Antinori that they are either capable or on the verge of creating human clones. A problem arises in a cloned embryo due to imprinting. It is the marking of the genetic material for the mother and the father so that only one can be utilized. An error in the genetic imprint from a single donor cell may cause some of the developmental abnormalities of cloned embryos. Also it is postulated that clones are unhealthy due to the fact that they have short telomeres. Telomeres act as clocks, directly affecting the cell structure of an organism before they pass away. Due to the process clones have short telomeres, making them sickly and frail. Cloning is deemed wrong for many reasons. First the process results in the death of many embryos, which may constitute murder.   Also cloning is seen as unnatural when they are view in concepts that are taboo to society, like having clones of the dead, the unborn and the dying. This problem comes from an individual’s sense of uniqueness. This can be repudiated by the cases of identical twins. Twins may have identical genetic components but they turn out to be different individuals. Moralists have also a problem that cloning gives us a concept of playing God. Bringing back a dead person or ensuring that a baby will be born as well as extending the life of a dying person is seen to be in the realm of the Almighty. The promise of being able to create an exact replica of a given genetic code has given many opportunities for those incapable of having children. Of primary concern are those who are infertile. Cloning as with artificial insemination and other in vitro techniques provide a way for their aim of having children to come true. Another is the families of those with deceased or dying children. They view cloning as a means to once more experience the love of their child. Also, lesbian couples who wish to have a child look on cloning to fulfill their dream. But it must be noted that were the technology realizable and actual human clones producible, cloning can only go so far. The debate of whether a cloned person still has the same trait and behavior as the original leans in favor of no.   It is vital to note that it is not only the genetic code that forms the person’s identity but that person’s experiences, teachers and influences. The issue regarding human clones is that they are born with a genetic bias of who they are, denying them the open future that is a right to every human being. They may be treated as objects rather than as persons. This underlies the discussion o whether the act is that of making rather that begetting. The problem is will being cloned from the somatic cell of an existing person result in the child being regarded as less of a person whose humanity and dignity would not be fully respected. This points us to the dilemma as to the humanity of clones. And the question is clones less human than we? Are clones of us us in every way, or are they new individuals? One reason to clone humans is for research. The process of therapeutic cloning uses cloned human embryos for research. cloned human beings are not the target of this process but the production of stem cells for research. Any specialized cell in the human body can be derived from stem cells. Stem cells come from five day old eggs..   This act destroys the embryo, raising ethical concerns. Therapeutic cloning has been touted as being able to produce human organs for transplants. Scientists say that for this to be possible, DNA would be obtained from the transplant recipient and injected into a enucleated egg. Stem cells can then be gathered from the egg. These can then be used as a template to produce the specific tissue or organ needed which would be an exact genetic match to the transplant recipient. Because of this fact, it is postulated that the organ will not be rejected by the body during transplant. Another use of therapeutic cloning is the creation of genetically modified pigs which can also be utilized as a source of human organs. The process of xenotranspalntation or the transplanting of animal organs into humans is seen as a medically viable way to accommodate the increasing demand for organs. Pigs are used due to their high rate of reproduction and their being able to be cloned with relative ease. Primates, who are of a much closer genetic match to humans, are more complex and thus much harder to clone. In comparison to other animals, the tissues and organs of pigs are the ones more similar to humans. To be able to achieve this, scientists deactivate the gene in individual pig cells that when detected by the human body, leads to organ rejection. Harvesting of the organs of the resulting clones is then done. Cloning has been seen as an advance in eugenics. Eugenics is the act of manipulating a population to promote one race or type as superior to others with the end goal of ultimately taking over the population. The idea is that people who are exceptional, who are deemed superior to others in one or many fields, must be cloned since they represent the best of the human race. This idea has many ambiguities particularly on the concept of superior and inferior. Although there were some unlikely ideas in the book, like trading gene samples as a commodity, Agar fails to fully express the debate in this topic. What he does show is that eugenics, by using positive methods would be beneficial to the race. And he also shows the impact of being a clone born under a eugenic driven ideal. There are different cases and different problems with cloning as a reproductive tool. Striking the right balance between procreative freedom and childrens welfare in the age of reproductive cloning is likely to require a case-by-case approach. Nevertheless, the transcendental advantage of cloning will be brought about not for simple transplants in mans body to replace his sick organs, but for the complete cloning of the human being to eventually achieve the immortality of the individual. Man will no longer change the parts of a body damaged to a greater or less degree, but he will leave the old body and change to a new one, which will be also improved by genetic engineering. Thus, the long-sought-after immortality, which man has always desired with all his being, will be achieved. It has been repeated insistently that the human being has a right to life. To ban cloning, then, would be to deny him the right to continue living. If clones were to be feasible, they would probably suffer. This can be brought upon by errors in their production leading to medical illnesses or to the preconceived notions that surround them. It is stipulated by Agar that the human race may not be ready to incorporate the idea of clones living among us. We simply have too many fears and false notions that inevitably we would end up stigmatizing them. Agar proposes that we get rid of these notions and keep an open and intelligent mind as to what cloning can offer us. We must learn as a society to separate fact from fiction and to rationalize our views about cloning.    References: Alan Man Humanity and the Cloning Question: Comparing and Contrasting Arguments http://www.amsa.org/bio/clone.cfm searched October 21 at using google.com What Are Some Issues In Cloning? http://learn.genetics.utah.edu/units/cloning/clissues/ searched at Yahoo.com CloningFactSheethttp://www.ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml searched October 22 using google.com

Wireless Mouse: History and Types

Wireless Mouse: History and Types Introduction Mouse is an input device for computer and it is used to access or run on the computer screen, without mouse we cant move cursor or arrow on the screen, without mouse we cant open, close, there is no such thing or device to replace instead of mouse. In this wireless mouse technology is now running in present world and wireless mouse works with Bluetooth connection and it uses battery power, battery power withstands longtime minimum period of one year and mouse consumes less power in it, in wireless mouse Bluetooth slot is present without losing transmitter. Mouse are of different types: Wire mouse Wireless mouse Touchpad mouse Key contributors: First mice were invented in the year 1944 by Ralph Benjamin and he was invented for the purpose for the fir control radar at world war II. Mouse was conceived by Doug Engelbart in the year 1960. The Engelbart thought up this idea in 1961 and first prototype mouse was created by English in 1964. (4) Engelbart English approached NASA for fund further research and to determine which input device is best for controlling cursor. In the year 1967 Bill English was analyzing the results of the various characteristics of input devices, Periodic table of the elements which has characteristics to define groups along rows and columns, periodic table is the main led to discovery of certain unknown elements, this defined the characteristics of a device that didnt exist before. That device was the mouse, (1) http://www.todayifoundout.com/wp-content/uploads/2016/03/canadian-mouse-340259.jpg The cursor was controlled by a simple mechanism using joystick that Benjamin after thinking and he came up with roller ball and it functions alike to the standard mechanical mouse. Roller ball was coated with rubber and it contacts to the sides of the rollers, rollers can turn in x y directions and that movement was transfer in to proper movement of pointer on screen. This device gave birth to the mouse. First developed: First prototype was developed by Bill English, and kept secretly without knowing outside of the world. Bill English Engelbart approach NASA for further research to get best results. (1) (5) http://www.superkids.com/aweb/pages/features/mouse/mouse.gif Mouse has only two directions to move freely i.e; X and y directions.After few inventions from mechanical mouse, ball mouse was replaced with single ball it can rotate in all direction when compared to mechanical mouse moves only in x and y directions. This version of mouse was changed the entire world later it became the predominant form ans used with personal computer throughtout 1980s and 1990s.(1) Mouse Mechanism http://www.madehow.com/images/hpm_0000_0005_0_img0035.jpg Mouse works with the help of roller ball and ball moves forward and backward direction with the help of diode motion was detected and transforms the motion onto the screen, there is special software to detect the motion of the roller ball and translate the motion on to the screen. Roller ball is used to control the cursor on the graphical user interface on screen, vertical wheel and horzontal wheel are used to move cursor from one point to another point on screen, roller ball has three guides which are used to guide the ball without getting out from the instrument while operating the mouse, the motion of the rollers sends electrical signals to the computer and software is used to convert signals in to user interface i.e; cursor.Mouse connects directly with the help of wire. The basic mouse has one button. http://www.iphone-tips-and-advice.com/image-files/apple_desig_one_mouse_button.jpg The single button has name LISA MOUSESingle button was first introduced by apple company in the year 1983 and material is steel and it was used until 2000.This design was not changed for almost 20 years due to it compact design, for this design they have done a lot of research to get final product, it was acctually designed and renamed by IDEO in 1991. Lisa mouse was failed due to it technical reasons, after that they changed and introduced The Macintosh Mouse material is used is rubber. After this apple introduced two more designs and it doesnt take any effect. (2) https://i0.wp.com/512pixels.net/wp-content/uploads/S3/2012-11-27-mighty.jpg?w=640 In 2005 apple introduced new product witout using mechanism and the name of the product is The Mighty Mouse after 22 years of strugulling they succeded in this product and it works good, the mouse body respond to the click.(2) Wireless Mouse: Wireless mouse or Optical mouse was first demonstrated by two independent inventors in 1980s by John Markoff Sol Sherr, it uses a infrared led and a four-quadrant infrared instrument to detect grid lines in pattern with infrared engrossing ink on a special metallic surface. (Optical Mouse.En.wikipedia.org.N.p.,2017.web.23 Mar.2017.) Optical mouse or wireless mouse uses a light source to detect movements relative to surface, it is different from mechanical mouse, in optical mouse moving parts are not present. https://commons.wikimedia.org/wiki/File:Microsoft-wireless-mouse.jpg Wireless mouse consist of transmitter, reciever, battery, and reciver can be placed behind the battery inside the mouse. The reciever is connected to the computer and transmitter is inbuilt in side of the mouse, reciever and transmitter uses radio frequency to communicate each other to transfer signals from both sides and it is a continous process, if battery power drainsout we need to replace or if the battery is rechargable we need to charge before using. Functions of mouse:- Left click Single click Double click Click and hold Right click Scroll wheel Navigation or Sensor Left click is used for selecting options in left click or button there are three options in that single click is used to highlight folder or selecting the particular tab while browsing web. Double click is used for opening folder, selecting words, opening documents in that folder. Click and hold is for copying files from other sources in to the particular folder, copying images into word documents, highlight the words, drag and drop in web browsing, copying files from usb to pc. Right click is mainly for shortcuts for new folders, new ms office files, for documents or folders right click is to open,edit,rename,cut,copy,delete,properties.This functions are highlighted in that particular button or click. Scroll wheel is used to scroll page up down, zoom in zoom out in maps,images, in some applications scroll wheel is also used to exit particular command i.e; creo software. Navigation or sensor is nothing but identifying where cursor or pointer is located. Sensor identifies the location of cursor or pointer. Touch pad: Touch pad was first introduced by Olivetti and Triumph-Adler in 1992, after that Cirque corporation was developed and commercilaized the touchpad and it was used commonly for various products like notebook and computers. Cirque corporation branded as Glidepoint in 1994, Glidepoint wass the first technology adopted in the notebook omputers as system pointing devices, it performs the same as mouse. Glide point technology reconiged as one of six best products on cover Best products of 1994. PC Magazine 10 january 1995. (3) Apple announced touchpads to powerbook series in the year 1992.(3) http://netdna.webdesignerdepot.com/uploads/2009/01/powerbook_100_pose.jpg Touchpad works two types of working principle, conductive sensing and capacitive sensing. Conductive sensing has two layers one is horizontal and vertical set of wires between two layers there are low conductive material is used for intersection and doesnt flow electricity between these layers. Capacitive sensors detect anything is conductive and it has two parts one is ground and other is sensor. Capacitive sensor is the most common sensor is widely used in everyday life. https://i.stack.imgur.com/CBxTN.jpg when we touch the two layers by using finger for contact to each other at a point and the point gets coordinates and coordinates sends to the system. Functions of touchpad is like mouse; relative motion enables us to move our finger across the surface of touchpad and moves cursor on screen. Under the touchpad two buttons are present and it was like the mouse buttons and it functions same as mouse clicks i.e.; left button, right button. Mouse has scroll wheel and in touch pad it doesnt provide in it, instead of that in touchpad there is an option of hotspot which enables the scroll wheel function in touchpad, there is an option in hotspot like, one finger, multi finger, additional. One-finger there are different option tapping; button, left click, right click; drag and drop. Multi-finger there are zooming; scrolling; rotation; three-finger; four-finger. Additional there are palm tracking; sensitivity; smart motion. Future: Touchpads are replaced with virtual reality, we can control everything on screen using our finger and we no need any physical contact to the object or product, and we can virtually move anything on screen. In future, we cant see mice due to virtual reality is useful for bright future. Mice transforms from mechanical to electrical from past to present, further we can see virtual reality. Virtual reality is the latest technology. Bibliography Battery optimization for mouse technology. Engineering research and applied science 5(1).2147-3471 (2016): 328-331.web. AppleS Mouse: A history -512. 512pixels.net N.p., 2017.web. 30 Mar.2017. First laptops with touchpad as mouse replacement?. Vintage computer forum. N.p., 2017. Web.30 Mar.2017 Father of The Mouse: Doug Engelbart. An Exclusive Interview in Superkids Software Review. Superkids.com.N.p.,2017.web.23 Mar.2017. Smallwood, karl. who invented The computer Mouse?. Today I Found Out.N.p., 2017.web. 26 Mar.2017.