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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
On Top of the World This winter wonderland called Austria is full of small villages surrounded by snow capped mountains that look like someone has come along with some icing sugar and generously topped each one. Mountain after Mountain clustered together, with pine trees placed here and there that are dappled with snow. A real life picture post card with chocolate box wooden houses and roof tops covered in crisp clean snow. Pretty balconies with people sat enjoying a glass or two of the local Gluevine which tastes of hot red wine with a hint on cinnamon that warms your very soul. People sat inside the houses in front of raging log fires cosily wrapped in thick warm blankets with a huge mug of hot chocolate covered with a generous topping of grated chocolate. Going up the mountain in the lift with the mountains leering over you like a huge dragon ready to pounce and the tiny houses below getting smaller and smaller as they disappear, passing through fluffy white cotton wool like clouds you must remember to hold on tight as the lift comes to a sudden abrupt jolt just before it reaches its destination at nearly the top of the mountain. Walking around up here, high above the madness of the world below you find peace within yourself, you feel you are catching up on lost time spent rushing around at home. Stopping and taking a moment to close my eyes and breath in the fresh clean spring like air then slowly opening them to the wonder of the view around me I feel Iâ€™m making the most of life. Standing here with a whimsical look on my face, life feels magnificent, and it feels good to be alive watching the children playing in the snow with glowing red tipped noses and rosy cheeks there smiles telling a story of happiness and freedom to just be children unrestricted by the rules of the world below. Adults free of the troubles of everyday life with huge smiles enjoying the local culinary specialities like large bowls of hot delicious soup with great chunks of fresh bread. How wrong I was to feel so daunted at the thought of my first winter holiday being on top of an artic slushy snow laden mountain freezing to death for a whole week didnâ€™t exactly fill me with excitement and wonder. Before me is the most incredible view Iâ€™ve ever seen, I always believed that good old Blighty was the prettiest place on earth with its countryside of rolling hills and lush green landscape.