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Hygiene hypothesis. In medicine, the hygiene hypothesis states that early childhood exposure to particular microorganisms (such as the gut flora and helminth parasites) protects against allergies by properly tuning the immune system. [ 1 ][ 2 ] In particular, a lack of such exposure is thought to lead to poor immune tolerance. [ 1 ]
Development theory is a collection of theories about how desirable change in society is best achieved. Such theories draw on a variety of social science disciplines and approaches. In this article, multiple theories are discussed, as are recent developments with regard to these theories. Depending on which theory that is being looked at, there ...
Social development theory attempts to explain qualitative changes in the structure and framework of society, that help the society to better realize aims and objectives.. Development can be defined in a manner applicable to all societies at all historical periods as an upward ascending movement featuring greater levels of energy, efficiency, quality, productivity, complexity, comprehension ...
Frederick Irving Herzberg (April 18, 1923 – January 19, 2000 [1]) was an American psychologist who became one of the most influential names in business management. [2] [3] He is most famous for introducing job enrichment and the Motivator-Hygiene theory.
Definition and overview. Hygiene is a practice [3] related to lifestyle, cleanliness, health, and medicine. In medicine and everyday life, hygiene practices are preventive measures that reduce the incidence and spread of germs leading to disease. [4] Hygiene practices vary from one culture to another. [5]
The theory is a classification system intended to reflect the universal needs of society as its base, then proceeding to more acquired emotions. [3] The hierarchy of needs is split between deficiency needs and growth needs, with two key themes involved within the theory being individualism and the prioritization of needs. While the theory is ...
Lawrence Kohlberg's stages of moral development constitute an adaptation of a psychological theory originally conceived by the Swiss psychologist Jean Piaget. Kohlberg began work on this topic as a psychology graduate student at the University of Chicago in 1958 and expanded upon the theory throughout his life. [1][2][3]
Three with second wife. Scientific career. Fields. Eugenics, genetics, medicine. Alfred Ploetz (22 August 1860 – 20 March 1940) was a German physician, biologist, Social Darwinist, and eugenicist known for coining the term racial hygiene (Rassenhygiene), [1] a form of eugenics, and for promoting the concept in Germany. [2]: 28.