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Theory X and Theory Y. Theory X and Theory Y are theories of human work motivation and management. They were created by Douglas McGregor while he was working at the MIT Sloan School of Management in the 1950s, and developed further in the 1960s. [1] McGregor's work was rooted in motivation theory alongside the works of Abraham Maslow, who ...
Sex. The XY sex-determination system is a sex-determination system present in many mammals, including humans, some insects (Drosophila), some snakes, some fish (guppies), and some plants (Ginkgo tree). In this system, the sex of an individual usually is determined by a pair of sex chromosomes. Typically, females have two of the same kind of sex ...
Content theory. Content theory is a subset of motivational theories that try to define what motivates people. Content theories of motivation often describe a system of needs that motivate peoples' actions. While process theories of motivation attempt to explain how and why our motivations affect our behaviors, content theories of motivation ...
Douglas Murray McGregor (September 6, 1906 – October 1, 1964) was an American management professor at the MIT Sloan School of Management and president of Antioch College from 1948 to 1954. [1] He also taught at the Indian Institute of Management Calcutta. His 1960 book The Human Side of Enterprise had a profound influence on education practices.
Theory Z is a name for various theories of human motivation built on Douglas McGregor 's Theory X and Theory Y. Theories X, Y and various versions of Z have been used in human resource management, organizational behavior, organizational communication and organizational development. McGregor's Theory X states that workers inherently dislike and ...
Sex-determination system. Some chromosomal sex determination systems in animals. A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. [1] Most organisms that create their offspring using sexual reproduction have two common sexes and a few less common intersex variations.
A spacetime diagram is a graphical illustration of locations in space at various times, especially in the special theory of relativity. Spacetime diagrams can show the geometry underlying phenomena like time dilation and length contraction without mathematical equations. The history of an object's location through time traces out a line or ...
Covariance. The sign of the covariance of two random variables X and Y. Covariance in probability theory and statistics is a measure of the joint variability of two random variables. [1] The sign of the covariance, therefore, shows the tendency in the linear relationship between the variables. If greater values of one variable mainly correspond ...