Results 251 to 260 of about 3,945,385 (300)
Some of the next articles are maybe not open access.
Market agents with a sense for mechanisms
IEEE International Conference on e-Business Engineering (ICEBE'05), 2005When software agents act on markets they typically face a predetermined market mechanism. Their strategies are a priori tailored by the agent designer to suit the market mechanism at stake. So, the market mechanisms are only considered and examined at design time.
Luckner, S. +3 more
openaire +2 more sources
Cellular Mechanism of Oxygen Sensing
Annual Review of Physiology, 2001▪ Abstract O2sensing is a fundamental biological process necessary for adaptation of living organisms to variable habitats and physiological situations. Cellular responses to hypoxia can be acute or chronic. Acute responses rely mainly on O2-regulated ion channels, which mediate adaptive changes in cell excitability, contractility, and secretory ...
J, Lopez-Barneo +2 more
openaire +2 more sources
Intracellular Mechanisms of Oxygen Sensing
Biochemistry (Moscow), 2020The review describes molecular mechanisms for sensing oxygen levels in various compartments of animal cell. Several pathways for intracellular oxygen sensing are discussed together with details of functioning of the near-membrane and cytoplasmic pools of molecular components in hypoxic cells.
openaire +2 more sources
The International Journal of Robotics Research, 1990
This paper has three main themes: design of a cylindrical tactile sensor, mechanical analysis using planar linear elas ticity models, and signal analysis for determining basic infor mation about the applied contact. An analysis of appropriate sensor depth has been used to allow accurate localization of contacts and reduced spatial aliasing.
openaire +2 more sources
This paper has three main themes: design of a cylindrical tactile sensor, mechanical analysis using planar linear elas ticity models, and signal analysis for determining basic infor mation about the applied contact. An analysis of appropriate sensor depth has been used to allow accurate localization of contacts and reduced spatial aliasing.
openaire +2 more sources
Bacterial sensing mechanism revealed
Science, 2017Structural Biology Escherichia coli use a transmembrane sensor protein to sense nitrate in their external environment and initiate a biochemical response. Gushchin et al. compared crystal structures of portions of the NarQ receptor that included the transmembrane helices in ligand-bound or unbound states. The structures suggest a signaling mechanism by
openaire +2 more sources
Mechanisms of Membrane Curvature Sensing
Annual Review of Biochemistry, 2011Bacteria and eukaryotic cells contain geometry-sensing tools in their cytosol: protein motifs or domains that recognize the curvature, concave or convex, deep or shallow, of lipid membranes. These sensors contrast with classical lipid-binding domains by their extended structure and, sometimes, counterintuitive chemistry.
openaire +2 more sources
Environmental Sensing Mechanisms in Bordetella
2001The success of a bacterial pathogen may depend on its ability to sense and respond to different environments. This is particularly true of those pathogens whose survival depends on adaptation to different niches both within and outside the host. Members of the genus Bordetella cause infections in humans, other animals and birds.
openaire +2 more sources
Brain glucose sensing: a subtle mechanism
Current Opinion in Clinical Nutrition & Metabolic Care, 2006Brain nutrient sensing allows a fine regulation of different physiological functions, such as food intake and blood glucose, related to energy homeostasis. Glucose sensing is the most studied function and a parallel has been made between the cellular mechanisms involved in pancreatic beta cells and neurons.Two types of glucosensing neurons have been ...
Luc, Pénicaud +4 more
openaire +2 more sources
Sense Organs: Mechanical and Chemical Senses
1972THE SIMPLEST mechanical sense is that of touch. This may be subserved by (i) receptors of contact projecting from the surface of the body, (ii) sense organs stimulated by the strains set up in the cuticle by pressure, or (iii) organs sensitive to changes of tension within the body.
openaire +1 more source
The Functional Sense of Mechanism
Philosophy of Science, 2013This article presents a distinct sense of ‘mechanism’, which I call the functional sense of mechanism. According to this sense, mechanisms serve functions, and this fact places substantive restrictions on the kinds of system activities ‘for which’ there can be a mechanism.
openaire +1 more source