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Prioritizing and selecting a research topic

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Prioritizing and selecting a research topic Why do we prioritize public health problems? 1.       Limited resources. 2.       Not enough people. 3.       Not enough time. 4.       Not enough money. Criteria for selecting a research topic: Relevance: The topic you choose should be a priority problem. Questions to be asked include: How large or widespread is the problem? Who is affected? How severe is the problem? q How large or widespread is the problem? q Who is affected? q How severe is the problem? Avoidance of duplication: Before you decide to carry out a study, it is important that you find out whether the suggested topic has been investigated before, either within the proposed study area or in another area with similar conditions. If the topic has been researched, the results should be reviewed to explore whether major questions that deserve fur...

Nutrition and Variety of Foods is Essential for A Balanced Diet

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Nutrition is the process of taking in food and using it for growth, metabolism, and repair. Nutritional stages are ingestion, digestion, absorption, transport, assimilation, and excretion. Nutrient is a substance or ingredient that promotes growth, provides energy, and maintains life. Food is any substance consumed to provide nutritional support for an organism. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. A  meal  is an eating occasion that takes place at a certain time and includes prepared food.      The names used for specific meals vary greatly, depending on the person's culture, the time of day, or the si...

Sampling Methods

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Sampling: It is the procedure by which some members are selected as representative of the entire population. Some sampling terms: Population: Collection of units sharing common characteristics  Ex : Finite: Possibility of counting all units such as students in a school. Infinite: such as RBCs of an individual . Sample: A subset of a population obtained to investigate properties of the parent population. Target population: Population upon which the results of the study will be generalized. Sampling population: Population from which the sample was taken. Sampling unit: Population unit used for sampling Subject under observation on which information is collected such as: Children events. years, hospital discharges health. Study population: The population selected to be sampled it is a subset of the target population Sampling frame: Any list of all the sampling units in the population: List of households, health care units. Sampling scheme: ...

Fatty acid Metabolism Cont.

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In the previous post of Fatty acid metabolism, we talked about first part of oxidation of fatty acids with even number of carbon atoms. SO, today we will talk about second part of oxidation relating to odd number of carbon atoms of Fatty acids, unsaturated fatty acids and ω-oxidation. Fatty acid oxidation (odd number): This process proceeds by the same reaction steps as that of an even number of carbon atoms until final 3 carbons are formed no 2 carbons as in even number. This compound is called Propionyl CoA .  Propionyl CoA is metabolized on 3 pathways:    a) Propionyl CoA is carboxylated into D- methylmalonyl CoA by propionyl CoA carboxylase which requires coenzyme called biotin . b) D-methylmalonyl CoA is converted into L-methylmalonyl CoA by methylmalonyl CoA racemase. c) Carbons of L-methylmalonyl is rearranged forming succinyl CoA which enters TCA cycle by enzyme methylmalonyl mutase which requires Coenzyme called Vitamin B12 . Wh...