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Situational Leadership Theory, now named the Situational Leadership Model, is a model created by Dr. Paul Hersey and Dr. Ken Blanchard, developed while working on the text book, Management of Organizational Behavior. [1] The theory was first introduced in 1969 as "Life Cycle Theory of Leadership". [2]
George Leonard Hersey (August 30, 1927 – October 23, 2007) was an American art historian. Hersey was an expert on Italian Renaissance art and architecture, as well as 19th century American art and architecture. His work discussed the relationship between biology and sexuality to art and architecture. [1]
Chaos Theory is a concept taken from the physical sciences. It challenges models that postulate linear and sequential processes, and instead suggests that development is inherently unpredictable. Chaos theory argues that it's unrealistic for a system to go through deterministic, predictable, and repeated stages.
Modelski wrote that the cycle is a 'learning process' and a 'motor of modernity', providing leadership on a global scale. [28] The cycle ushers in new waves of innovation in orderly fashion. Awareness of the cycle provides a balanced perspective, and a counter to the widespread belief in global anarchy. [29]
Life span refers to duration of life and characteristics that are closely related to age but that vary little across time and place. In contrast, the life course perspective elaborates the importance of time, context, process, and meaning on human development and family life (Bengtson and Allen 1993).
Life-cycle assessment (LCA or life cycle analysis) is a technique used to assess potential environmental impacts of a product at different stages of its life. This technique takes a "cradle-to-grave" or a "cradle-to-cradle" approach and looks at environmental impacts that occur throughout the lifetime of a product from raw material extraction, manufacturing and processing, distribution, use ...
All organisms follow a specific sequence in their development, [9] beginning with gestation and ending with death, which is known as the life cycle. Events in between usually include birth, childhood, maturation, reproduction, and senescence, and together these comprise the life history strategy of that organism.
Some scientists have proposed in the last few decades that a general theory of living systems is required to explain the nature of life. [1] Such a general theory would arise out of the ecological and biological sciences and attempt to map general principles for how all living systems work. Instead of examining phenomena by attempting to break ...