Stem Cells Research Paper Example | Topics and Well Written Essays - 1500 words

Stem Cells - Research Paper Example Stem Cells are specialized and powerful cells found in the body. The stem cells are non-differentiated cells, and have the potentiality of differentiating to form other cells. In the process of differentiation of the stem cells, they divide through mitosis. The stem cells in adults can be harvested from three main areas. The bone marrow is a special area where the cells can be extracted. From the bone marrow, the cells are harvested by drilling through the bones of the iliac crest or the femur where the stem cells are in abundance. Other than the bone marrow, adipose tissue (lipid cells) is another of the key areas where stem cells could be harvested. The stem cells from the adipose tissues are harvested through the means of liposuction. Additionally, the stem cells can be extracted from the blood tissues. The process of extraction of stem cell from the blood is called apheresis. In this process, blood is drawn from a donor similar to the typical blood donation mechanism, but in this procedure, the blood is flown through a specialized machine that separates the stem cells from the blood (Rodriguez et al., 2005). Apart from extraction of stem cells from mature adults, the cells can be gotten from the umbilical cord and are usually extracted immediately at birth. Of all the means through which the stem cells can be harvested, it is safer when a stem cell from an individual is implanted to the same individual. In this means, a stem cell from one part of the body (bone) can be transplanted to another. Implantation of auto stem cells decreases the risk of immune sensitivity and immune rejection of the implanted stem cells (Blanpain et al., 2012). Contrary to other cells of the body, stem cells are unspecialized. In this essence, the stem cells are capable of self-renewal through cell division, especially after a long period of inactivity. Another classical difference between stem cells and other cells of

Drinking Research Paper Example | Topics and Well Written Essays - 750 words

Drinking - Research Paper Example Supporting Arguments Nowadays, an alliance has been formed youth and drinking. It is not only spoiling the youth’s health but also causing a great deal of immorality in them. They are destroying themselves by filling their body with such fluids. Youth is now unable to present itself as a healthy part of society; rather, the young have lost their focus of life and become irresponsible. In the past, school was an institution which was a place for the young to nurture their abilities and talents. But now it has become a place of fun funded by parents. They just have found a place where they can party and do whatever they want to (Should the Legal Drinking Age Be Raised to 25 to Eliminate Deadly College Partying?). The health experts of University of Otago conducted a study showing correlation between suicides, homicides, and age of drinking (Elder). People who start drinking early in their lives have a higher tendency to commit suicide or kill others (Elder). Same study found out that there is a decrease in suicide ratio among people who began drinking alcohol late in life (Elder). This is an effective supporting evidence for increasing the minimum age of drinking. ... In this way, this habit which spreads through company can be avoided to some extent. Youngsters can concentrate more on studies and achieving ambitions of their life. Research also shows that adults react quite differently to alcohol as compared to youth (Knudsen). Adults have more sense of when to stop drinking as compared to the young; also, they do not drink as frequently as school going youngsters (Knudsen). Brain development of adults is more stable as compared to youngsters, so they do not go to extreme extents for partying. If drinking is started at early age, there is more probability that a person will endure depression and will be psychologically distant from the society (Knudsen). Drinking has more hazardous effect on developing brains of the young (Knudsen). Some scholars say that youngsters are not sensible and responsible enough to understand the purpose of alcohol even at the age of 21 because alcohol is the most abused drug (Lianne H.). So, according to some scholars, the minimum drinking age should be raised to 23 because brain keeps on developing until the age of 23 (Lianne H.). Also, at the age of 23, people graduate and are ready to start their professional lives. So, there are less chances of spreading this habit in the whole group. At the age of 21, most people are at university and colleges enjoying and partying with friends and more of their attention is towards enjoying life and breaking rules (Lianne H.). Automobile accidents are also very common and there are many cases of drunk driver ruining a number of lives, which results in an endless trauma (Lianne H.). Adults at the age of 23 have mature minds and they are conscious enough not to drive after drinking (Lianne H.). However, teenagers do not have this