An article from Science News Feb 2021
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An article from Science News Feb 2021
Some Neandertal genes in people today may protect against severe COVID-19
An article from Science News Feb 2021
Pfizer’s vaccine appears to reduce coronavirus transmission
An article from Science News Feb 2021
Diabetes during pregnancy is tied to heart trouble later in life
Article
Abscisic acid
A major plant hormone that plays an important role in plant growth and development. Abscisic acid (ABA), with a chemical formula of C15H20O4 (Fig. 1), is one of the most significant hormones found in plants. It is responsible for regulating various…
Article
Addiction and addictive disorders
Habituation to a specific practice, such as drinking alcoholic beverages or using drugs (for example, heroin, cocaine, or amphetamines), and disorders characterized by the chronic use of a drug, alcohol, or similar substance. Addiction and addictive…
Biography
Alexander, Hattie Elizabeth (1901–1968)
Article
Alzheimer's disease
A disease of the nervous system characterized by a progressive dementia that leads to profound impairment in cognition and behavior. Dementia occurs in a number of brain diseases where the impairment in cognitive abilities represents a decline from…
Biography
Alzheimer, Alois (1864–1915)
Biography