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Active inference and free energy
Behavioral and Brain Sciences, 2013AbstractWhy do brains have so many connections? The principles exposed by Andy Clark provide answers to questions like this by appealing to the notion that brains distil causal regularities in the sensorium and embody them in models of their world. For example, connections embody the fact that causes have particular consequences.
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Activation energies of the ATPase activity of sarcoplasmic reticulum
Biochemical and Biophysical Research Communications, 1974Summary Arrhenius plots of Ca ++ -stimulated ATP hydrolysis by sarcoplasmic reticulum (SR) show breaks (T t ) at 16.7°C and 11.5°C for rabbit and lobster preparations, respectively. The energies of activation (Eact) are about 10 and 19.5 Kcal/mole above and below T t , respectively, and are similar for both lobster and rabbit SR.
V M, Madeira +2 more
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ERDA's fossil energy activities
Environmental Science & Technology, 1976Highlights of the direction of ERDA's fossil fuel activities are reviewed. Synfuels from coal and enhanced methods to recover oil, natural gas and oil shale may be competitive and socially acceptable options to alternative energy sources in the not-too-distant future.
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Medium reorganization energy and enzymatic reaction activation energy
Journal of Theoretical Biology, 1985Reorganization and activation energies for charge transfer reactions occurring inside a dielectric sphere have been calculated by solving the problem of polar medium reorganization within and outside a dielectric sphere placed in another infinite dielectric. The dielectric sphere is assumed to simulate a protein globule, i.e. an enzyme molecule. It has
, Kharkats YuI, L I, Krishtalik
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Energy coding and energy functions for local activities of the brain
Neurocomputing, 2009In this paper, the intrinsic relationship between energy consumption and neural information coding in local neural networks of the cerebral cortex is studied. The energy functions of a variety of membrane potential are obtained under some conditions of mutual coupling at both the supra-threshold and the sub-threshold states in a neural population ...
Rubin Wang, Zhikang Zhang, Guanrong Chen
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Energy Cost and Energy Sources During a Simulated Firefighting Activity
Journal of Strength and Conditioning Research, 2010This study aimed to 1) analyze the energy requirement (VO2eq) and the contribution of the aerobic (VO2ex), anaerobic alactic (VO2al), and anaerobic lactic (VO2la-) energy sources of a simulated intervention; 2) ascertain differences in mean VO2 and heart rate (HR) during firefighting tasks; and 3) verify the relationship between time of job completion ...
Perroni F. +6 more
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Fuzzy Energy-Based Active Contours
IEEE Transactions on Image Processing, 2009This paper presents a novel fast model for active contours to detect objects in an image, based on techniques of curve evolution. The proposed model can detect objects whose boundaries are not necessarily defined by gradient, based on the minimization of a fuzzy energy, which can be seen as a particular case of a minimal partition problem.
Stelios Krinidis, Vassilios Chatzis
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Active Transport and Transfer of Energy
Nature, 1963THE transport of ions and molecules across the cell membrane against a concentration gradient is usually defined by the term ‘active transport’. The word ‘active’ conveys the idea of active participation of the cells in these transport processes, the energy required being supplied by the metabolic processes within the cells.
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The Energy of Activation of Protein Denaturations
Science, 1937The abnormally large values of the energy and the entropy of activation encountered in protein denaturations and enzyme destructions are illusory, since the customary method of calculating these quantities by the comparison of rates at constant p H alone is fallacious.
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