As a concept, âresearch ethicsâ refers to a complex set of values, standards and institutional. schemes that help constitute and regulate scientiï¬ c activity. Ultimately, research ethics is. a codiï¬ cation of ethics of science in practice.
Vitamin B-3, also known as niacin, is an essential nutrient for the body. It helps major organs function properly. It also helps the body repair DNA. The recommended daily dose of vitamin B-3 for different groups varies: 2 to 12 mg a day for children. 14 mg a day for women. 16 mg a day for men.
Excess niacin can do harm to the following organs or systems. 1  Skin and hair. Too much niacin can lead to terrible side effects, including the loss of your hair, cracked and dry skin, rashes, skin flushing, and severe itching. 2  Liver.