Stem Cells Research Paper Example | Topics and Well Written Essays - 1250 words - 1

Stem Cells - Research Paper Example Most other cells in our bodies are capable of either no replication at all, or only limited multiplication. Stem cells however can continue to replicate mitotically in an endless series of cell divisions in which a single progenitor call can give rise to populations of several million cells. 2. stem cells lack the functional characteristics of other cells in our bodies. For example the red blood cells can carry oxygen bound to the hemoglobin. The muscle cells can utilize ATP to contract and relax in response to nerve stimulation. But stem cells cannot perform any of these specialized tasks. 3. when stem cells in our bodies are subjected to the appropriate stimuli, they undergo differentiation, a process by which stem cells give rise to different end-organs and tissues. These cells which arise from the stem cells are functional in the different body processes. Thus stem cells, by differentiation along different lines give rise to all the organs and tissues in our bodies. Research into stem cells has opened gateways in biological studies that would have been deemed unbreachable just a few decades ago. The most astounding results that stem cell research have yielded are in the field of cell based therapies. The theory behind the use of stem cells in this field is that since stem cells are the progenitor calls that have given rise to all the tissues and organs in our body during our embryonic life, they can also be used to replenish the aforementioned organs and tissues should they become damaged or defective during our adult life. Theoretically, the stem cells can be used as a reservoir to supply any type of cells that become defective in our bodies. For example, in diabetics, they can be used to create a new population of beta cells which can be transplanted to the patients pancreas. They can even be used to constitute entire organs, like kidneys, liver, cornea and even the heart for purposes of transplantation. In practical use, cell based therapies have only so far been applied on a limited scale in hematological malignancies, to reconstitute the cell population after intensive chemotherapy meant to eradicate the patients own bone marrow. Their success and popularity as a mode of treatment in these illnesses is widely established. Stem cell research can also yield excessive information about the processes of cell division and differentiation that are involved in the development of the different organ systems of the embryo from the unicellular zygote. These mechanisms are of intense interest to scientists because they play key roles in diseases that are genetically inherited as well as in the development of cancers. If the defects in cell division and differentiation that give rise to certain genetically inherited traits can be identified, and the key growth or induction factors responsible for causing these defects elucidated, then perhaps these defects can be prevented or corrected in the very early stages of fetal life. If the genetic changes

Technological advances of globalization Essay Example | Topics and Well Written Essays - 1000 words

Technological advances of globalization - Essay Example But government policy and technical developments of the last few years have urged increases in cross border trade, migration, and investment. The volume of world trade has increased in recent years. Comparatively, today globalization is very faster cheaper, farther and deeper than olden years. The current policies such as domestically and internationally open economies are major reasons for the current wave of the globalization. In the last two decades, many governments have tried or adapted free-market economy systems for international trade and investment. To promote trade in goods, services, and investment government also have provided reductions in barriers to commerce. Corporations have opened factories in foreign countries and established production and marketing preparations with foreign associates by getting a benefit of new opportunities in overseas markets. Technology is known as the other chief driver of globalization. Information technologies have given all kinds of indiv idual financial players - consumers, investors, businesses - valuable new tools for recognizing and continuing economic opportunities, including quicker and more conversant analyses of economic styles around the globe, easy transfers of belongings, and alliance with distant partners. Globalization has now become a controversial matter. ... Resistance to globalization has therefore taken figure both at a popular and at a government level as people and government attempt to supervise the flow of investment, merchandise, employment, and ideas that represent the present wave of globalization. Even though globalization has now become a fiscal, political and social concept, it is not a new occurrence. Travelers such as Marco polo, and Ibn Battuta were innovators of globalization facing casualty and risk in their mission to explore new distant land. But in 21st century, globalization receives on a new definition. It might mean sitting in your room in U.S while talking with a companion in U.K. Trade, Health, Environment, and culture Trade is a significant part of globalization. It steers globalization. Current shipping and telecommunication facilities enable exports to and imports from distant places without any difficulty. But few trade policies, international rules and regulations can still create problems for developing nations. Globalization has had spectacular effects on health department. Treatments for deceases such as HIV/AIDS are commonly accessible, and their costs have fallen by the reason of international agreements. Latest medicinal stuffs to identify, measure, and treat known and emerging diseases are being used all over the globe. The people are more conscious on health issues by the entry of internet and e-mail. At the same time the global actions teams such as national institutes, international bodies, and public society are helping to amplify alertness, monitor developments, and generate solutions to health issues. On the other hand, cross border voyage increases HIV/AIDS and other contagious