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Fluidity (adaptability)
Fluidity may refer to: In science *Reciprocal of viscosity * Cognitive fluidity *Fluid intelligence *Membrane fluidity *Sexual fluidity Sexual fluidity is one or more changes in sexuality or sexual identity (sometimes known as sexual orientation identity). Sexual orientation is stable and unchanging for the vast majority of people, but some research indicates that some people may e ... Other * ''Fluidity'' (video game) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viscosity
The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water. Viscosity quantifies the internal frictional force between adjacent layers of fluid that are in relative motion. For instance, when a viscous fluid is forced through a tube, it flows more quickly near the tube's axis than near its walls. Experiments show that some stress (such as a pressure difference between the two ends of the tube) is needed to sustain the flow. This is because a force is required to overcome the friction between the layers of the fluid which are in relative motion. For a tube with a constant rate of flow, the strength of the compensating force is proportional to the fluid's viscosity. In general, viscosity depends on a fluid's state, such as its temperature, pressure, and rate of deformation. However, the dependence on some of these properties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steven Mithen
Steven Mithen, (born 16 October 1960) is a Professor of Archaeology at the University of Reading. He has written a number of books, including ''The Singing Neanderthals'' and ''The Prehistory of the Mind: The Cognitive Origins of Art, Religion and Science.'' Early life and education Mithen was born on 16 October 1960. He received a BA in prehistory and archaeology from Sheffield University, a MSc degree in biological computation from York University and a PhD in archaeology from Cambridge University. Academic career Mithen began his academic career as a research fellow in archaeology at Trinity Hall, Cambridge from 1987 to 1990. He was additionally a Cambridge University lecturer in archaeology (1989–1991), and then a research associate at the McDonald Institute for Archaeological Research from 1991 to 1992. In 1992, he joined the University of Reading as a lecturer in archaeology. He was promoted to senior lecturer in 1996, made Reader in Early Prehistory in 1998, and h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluid And Crystallized Intelligence
The concepts of fluid intelligence (''g''f) and crystallized intelligence (''g''c) were introduced in 1963 by the psychologist Raymond Cattell. According to Cattell's psychometrically-based theory, general intelligence (''g'') is subdivided into ''g''f and ''g''c. Fluid intelligence is the ability to solve novel reasoning problems and is correlated with a number of important skills such as comprehension, problem-solving, and learning. Crystallized intelligence, on the other hand, involves the ability to deduce secondary relational abstractions by applying previously learned primary relational abstractions. History Fluid and crystallized intelligence are constructs originally conceptualized by Raymond Cattell. The concepts of fluid and crystallized intelligence were further developed by Cattell and his former student John L. Horn. Fluid versus crystallized intelligence Fluid intelligence (''g''f) refers to basic processes of reasoning and other mental activities that depend on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Membrane Fluidity
In biology, membrane fluidity refers to the viscosity of the lipid bilayer of a cell membrane or a synthetic lipid membrane. Lipid packing can influence the fluidity of the membrane. Viscosity of the membrane can affect the rotation and diffusion of proteins and other bio-molecules within the membrane, there-by affecting the functions of these things. Membrane fluidity is affected by fatty acids. More specifically, whether the fatty acids are saturated or unsaturated has an effect on membrane fluidity. Saturated fatty acids have no double bonds in the hydrocarbon chain, and the maximum amount of hydrogen. The absence of double bonds decreases fluidity, making the membrane very strong and stacked tightly. Unsaturated fatty acids have at least one double bond, creating a "kink" in the chain. The double bond increases fluidity. Membrane fluidity is also affected by cholesterol. Cholesterol can make the cell membrane fluid as well as rigid. Factors determining membrane fluidity Membra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Fluidity
Sexual fluidity is one or more changes in sexuality or sexual identity (sometimes known as sexual orientation identity). Sexual orientation is stable and unchanging for the vast majority of people, but some research indicates that some people may experience change in their sexual orientation, and this is slightly more likely for women than for men. * * * * * There is no scientific evidence that sexual orientation can be changed through psychotherapy. Sexual identity can change throughout an individual's life, and may or may not align with biological sex, sexual behavior or actual sexual orientation.Sinclair, Karen, About Whoever: The Social Imprint on Identity and Orientation, NY, 2013 Sexual orientation is not a choice. There is no consensus on the exact cause of developing a sexual orientation, but genetic, hormonal, social and cultural influences have been examined. Scientists believe that it is caused by a complex interplay of genetic, hormonal, and environmental influences ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
