|The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
The metabolism of glucose is the vital process of a living body. In glucose metabolism, glucose plays the most important role in providing the human body the energy required for various other works and for survival as well. Once consumed, glucose is absorbed by the intestines leading to the flow into the blood. Extra glucose that is stored in the muscles and liver as glycogen is hydrolyzed to glucose and released into the blood when needed. Glycogen is mobilized and converted to glucose by gluconeogenesis when the blood glucose concentration is low. Glucose may also be produced from non-carbohydrate precursors, such as pyruvate, amino acids and glycerol, by gluconeogenesis. It is gluconeogenesis that maintains blood glucose concentrations, for example during starvation and intense exercise.