coupling biology definition function

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  • Coupling Reaction - Definition, Types, Examples, Applications

    What is the function of coupling? Both couplings have the basic purpose of transmitting power, accommodating misalignment and compensating for axial movement (end shaft movement). A coupling is often requested to withstand shock or vibration.

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  • Gap Junction: Definition, Function, Structure | Biology ...

    Illustration of reaction coupling using ATP. In the uncoupled reaction, glucose and fructose combine to form sucrose. This reaction is thermodynamically unfavorable (requires energy). When this reaction is coupled to ATP hydrolysis, it can take place, …

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  • ATP cycle and reaction coupling | Energy (article) | Khan ...

    It is known that during bone remodeling cycle, there are direct and indirect communications among bone cells in a process called coupling mechanism, which include soluble coupling factors stored in bone matrix that would be released after osteoclast bone resorption .

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  • Development of structure–function coupling in human brain ...

    2021-5-19 · Having undertaken live cell imaging studies to define the coupling of metabolism to a physiological increase in glucose concentration in β and α cells in health and under conditions of β cell …

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  • Biology of Bone Tissue: Structure, Function, and Factors ...

    2017-2-12 · Chemiosmosis Definition. Chemiosmosis is when ions move by diffusion across a semi-permeable membrane, such as the membrane inside mitochondria. Ions are molecules with a net electric charge, such as Na +, Cl –, or specifically in chemiosmosis that generates energy, H +. During chemiosmosis, ions move down an electrochemical gradient, which is a gradient of …

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  • Live-cell imaging of glucose-induced metabolic coupling of ...

    2011-7-23 · The coupling of a proton to an electron, proton-coupled electron transfer (PCET), is the basic mechanism of chemical and bio-energy conversion. Small-molecule activation, redox-driven proton pumps, and radical initiation and transport all involve the coupling of electrons to protons. However, the mechanistic details of how the electron and proton ...

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  • Chemiosmosis - Definition, Function and Examples | Biology ...

    2021-6-28 · Coupling: Coupling is the measure of the degree of interdependence between the modules. A good software will have low coupling. Types of Coupling: Data Coupling: If the dependency between the modules is based on the fact that they communicate by passing only data, then the modules are said to be data coupled. In data coupling, the components are independent …

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  • 38.4F: Excitation–Contraction Coupling - Biology LibreTexts

    2020-8-14 · Excitation–contraction coupling is the physiological process of converting an electrical stimulus to a mechanical response. It is the link (transduction) between the action potential generated in the sarcolemma and the start of a muscle contraction. Figure 38.4 F. 1: Excitation-contraction coupling: This diagram shows excitation-contraction ...

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  • Structure-function coupling in the human connectome: A ...

    2021-2-1 · Structure-function coupling is therefore likely to be more complex than a one-to-one linear correspondence. High-order interactions among neural elements, involving polysynaptic communication across multiple structural connections, may give rise to complex mappings between structure and function (Seguin et al., 2018).

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  • ATP cycle and reaction coupling | Energy (article) | Khan ...

    2011-10-21 · Neurovascular coupling refers to the relationship between local neural activity and subsequent changes in cerebral blood flow (CBF). The magnitude and spatial location of blood flow changes are tightly linked to changes in neural activity through a complex sequence of coordinated events involving neurons, glia, and vascular cells.

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  • Neurovascular coupling - Scholarpedia

    2014-12-10 · biology faces a similar definition problem. It is, as it says on the label, about synthesizing the living. This ... coupling the survival of the host cells to the function of the designed switches or circuits, the researchers put their

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  • What exactly is synthetic biology?

    2021-5-15 · A 6 mm-radius sphere was centred on the peak coordinate of each locus, and the overlapping voxels between the sphere and meta-analysis loci were taken as the seeds for extracting the attention sub-networks (Supplementary Figure 1B and Supplementary Table 1).The building of attention sub-networks and their connectors are based on methods from previous …

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  • Anatomical and functional coupling between the dorsal and ...

    The outer boundary was set at 20 chord lengths from the wing. The non-dimensional time step was 0.02 (non-dimensionalized by c/U where c is the mean chord of the wing of the insect and U is the mean flapping speed of the wing; see below for the definition of U). A detailed study of the numerical variables such as grid size, domain size,time ...

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  • Hovering of model insects: simulation by coupling ...

    2021-4-13 · Learning biological properties from sequence data is a logical step toward generative and predictive artificial intelligence for biology. Here, we propose scaling a deep contextual language model with unsupervised learning to sequences spanning evolutionary diversity. We find that without prior knowledge, information emerges in the learned representations on …

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  • Brain-to-Brain coupling: A mechanism for creating and ...

    Brain-to-brain coupling also relies on stimulus-to-brain coupling as a vehicle for conveying information. However, in brain-to-brain coupling, the signal is generated by another brain and body that resemble our own, rather than by inanimate objects in the physical environment (Figure 1B).Brain-to-brain coupling is analogous to a wireless communication system in which two brains …

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  • Coupling of the RAS-MAPK Pathway to Gene Activation by ...

    1996-8-16 · A signaling pathway has been elucidated whereby growth factors activate the transcription factor cyclic adenosine monophosphate response element-binding protein (CREB), a critical regulator of immediate early gene transcription. Growth factor-stimulated CREB phosphorylation at serine-133 is mediated by the RAS-mitogen-activated protein kinase (MAPK) …

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  • Measuring Phase-Amplitude Coupling Between Neuronal ...

    2010-8-1 · METHODS. In this section we describe how our phase-amplitude CFC measure is computed and the rationale for its definition. To be consistent with previous reports (Tort et al. 2008, 2009), we call the measure the modulation index (MI).The MI is able to detect phase-amplitude coupling between two frequency ranges of interest: the “phase-modulating” and …

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  • Adenosine Diphosphate: Definition & Function | Study.com

    2020-4-1 · Quantum biology revisited. 1 Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. 2 Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Science, University of Glasgow, Glasgow G12 8QQ, UK. 3 Department of Chemistry, Boston University, 590 ...

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  • Software Engineering | Coupling and Cohesion - javatpoint

    2017-4-12 · A new sliding mode control model of discrete chaotic systems based on multimodal function series coupling is proposed to overcome the shortcomings of the standard PSO algorithm in multimodal function optimization. Firstly, a series coupled PSO algorithm (PP algorithm) based on multimodal function is constructed, which is optimized by multipeak solution on the basis of the …

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  • Excitation Contraction Coupling - an overview ...

    Excitation–Contraction Coupling. Excitation–contraction (e–c) coupling is the term used to describe the progression from membrane excitation with an AP to the rise of the Ca transient to myocyte contraction. The time course of e–c coupling can be observed for a mammalian myocyte in Figure 1. Notice the central role of the Ca transient ...

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  • Nocera Lab: Proton-Coupled Electron Transfer

    2011-7-23 · The coupling of a proton to an electron, proton-coupled electron transfer (PCET), is the basic mechanism of chemical and bio-energy conversion. Small-molecule activation, redox-driven proton pumps, and radical initiation and transport all involve the coupling of electrons to protons. However, the mechanistic details of how the electron and ...

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  • What exactly is synthetic biology?

    2014-12-10 · biology faces a similar definition problem. It is, as it says on the label, about synthesizing the living. This ... coupling the survival of the host cells to the function of the designed switches or circuits, the researchers put their

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  • Dynamic coupling of whole-brain neuronal and ...

    2020-4-28 · In a technical tour de force, we have created a framework demonstrating the underlying fundamental principles of bidirectional coupling of neuronal and neurotransmitter dynamical systems. Specifically, in the present study, we combined multimodal neuroimaging data to causally explain the functional effects of specific serotoninergic receptor (5-HT2AR) …

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  • Hovering of model insects: simulation by coupling ...

    The outer boundary was set at 20 chord lengths from the wing. The non-dimensional time step was 0.02 (non-dimensionalized by c/U where c is the mean chord of the wing of the insect and U is the mean flapping speed of the wing; see below for the definition of U). A detailed study of the numerical variables such as grid size, domain size,time ...

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  • Quantum biology revisited | Science Advances

    2020-4-1 · Quantum biology revisited. 1 Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. 2 Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Science, University of Glasgow, Glasgow G12 8QQ, UK. 3 Department of Chemistry, Boston University, 590 ...

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  • Coupling agent - definition of coupling agent by The Free ...

    Define coupling agent. coupling agent synonyms, coupling agent pronunciation, coupling agent translation, English dictionary definition of coupling agent. n. 1. One that acts or has the power or authority to act. 2. One empowered to act for or represent another: an author's agent; an insurance agent…

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  • membrane | Definition, Structure, & Functions | Britannica

    2021-6-25 · Function in biology is what a part of the body or cell does in relation to the whole. It is the reason some part or process occurred in a system which evolved by natural selection.. A similar definition is 'the function of a component in an organism is the contribution it makes to that organism's fitness'.. The term is used especially in physiology, in phrases like 'the function of the …

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  • Regulation of Sodium Channel Function by Bilayer Elasticity

    2003-12-30 · The bilayer-protein hydrophobic coupling therefore will have little impact on any given protein conformation; but if two protein conformations differ in free energy (ΔG tot 0) by a few kJ/mole, changes in ΔG def 0 will be important for protein function (Sackmann, 1984; Gruner, 1991; Andersen et al., 1992; Lundbæk and Andersen, 1994).

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  • BioMath: Linear Functions - The Biology Project

    2006-4-6 · Definition: A linear function is a function that has a constant rate of change and can be represented by the equation y = mx + b, where m and b are constants. That is, for a fixed change in the independent variable there is a corresponding fixed change in the dependent variable.

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  • Coupling effect and pole assignment in trajectory ...

    2021-3-1 · Coupling effect and pole assignment in trajectory regulation of multi-agent systems ... Functional observer-based finite-time adaptive ISMC for continuous systems with unknown nonlinear function. Automatica, Volume 125, 2021, Article 109468. Download PDF View details.

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  • Spin-orbit coupling suppression and singlet-state blocking ...

    In S′, singlet pairs couple with the singlet wave function of S′ and create two-series junction behavior, and hence, singlet supercurrents do not show a decay . Triplet pairs, however, are not able to couple with the singlet wave function of S′ and hence decay within the order of the singlet coherence length (30 nm; Fig. 3A).

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  • ATP5PF - ATP synthase-coupling factor 6, mitochondrial ...

    Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core and F(0) - containing the membrane …

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  • Genome Biology | Home page

    26 January 2016. The Erratum to this article has been published in Genome Biology 2016 17 :181. Accurate normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes. Authors: Jo Vandesompele, Katleen De Preter, Filip Pattyn, Bruce Poppe, Nadine Van Roy, Anne De Paepe and Frank Speleman.

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  • Encyclopedia of Cell Biology - 1st Edition

    Biology definition is - a branch of knowledge that deals with living organisms and vital processes. How to use biology in a sentence.

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