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The motherhood penalty refers to the economic disadvantages women face in the workplace as a result of becoming mothers. [1] [2] [3] This sociological concept highlights how working mothers often experience wage reductions, diminished perceived competence, and fewer career advancement opportunities compared to their childless counterparts.
In genetics, a maternal effect occurs when the phenotype of an organism is determined by the genotype of its mother. [1] For example, if a mutation is maternal effect recessive, then a female homozygous for the mutation may appear phenotypically normal, however her offspring will show the mutant phenotype, even if they are heterozygous for the mutation.
Anna Aizer is a labor and health economist, who currently serves as the Maurice R. Greenberg Professor of Economics at Brown University where she is also a Faculty Associate at the Population Studies and Training Center. Her research focuses on child health and well-being, in particular the effect of societal factors and social issues on ...
The data indicated a widening disparity in black-white infant mortality as maternal ages increase. Subsequently, Geronimus proposed the "weathering hypothesis", which she initially conceived as a potential explanation for the patterns of racial variation in infant mortality with increasing maternal age. [11]
The maternal wall is a term referring to stereotypes and various forms of discrimination encountered by working mothers and mothers seeking employment. Women hit the maternal wall when they encounter workplace discrimination because of past, present, or future pregnancies or because they have taken one or more maternity leaves. [ 1 ]
Maternal effect dominant embryonic arrest (Medea) is a selfish gene composed of a toxin and an antidote. A mother carrying Medea will express the toxin in her germline, killing her progeny. If the children also carry Medea , they produce copies of the antidote, saving their lives.
Sexual selection is an evolutionary concept that has been used to explain why, in some species, male and female individuals behave differently in selecting mates. In 1930, Ronald Fisher wrote The Genetical Theory of Natural Selection, [3] in which he introduced the modern concept of parental investment, introduced the sexy son hypothesis, and introduced Fisher's principle.
Maternal deprivation is a scientific term summarising the early work of psychiatrist and psychoanalyst John Bowlby on the effects of separating infants and young children from their mother (or primary caregiver). [1]