Results 251 to 260 of about 2,329,116 (298)
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Electrical and Mechanical Response in Biventricular Mechanical Alternans
Archives Internationales de Physiologie et de Biochimie, 1979Mechanical alternans of various degrees is produced by rapid heart rates, slower rates in failing hearts and can be brought about by a single extra systole. It has also been shown that the two ventricles may exhibit different degrees of mechanical alternation.
Y, Hasin, O, Sarel, S, Rogel
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Localization and Mechanisms of Airway Responses
New England Journal of Medicine, 1977The air passages of the lung are not rigid tubes; they can reduce their caliber in response to chemicals, such as sulfur dioxide, drugs, such as histamine, and antigenic agents, such as ragweed pol...
Howard L. Bleich +3 more
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On Vestibular Response to Mechanical Irritation
Acta Oto-Laryngologica, 1970In the belief that stapedectomy provides an wartunity for studying labyrinthine response to mechanical irritation, peroperatory electronystagmography was performed on 10 consecutive otosclerotic pa...
A, Man, G, Leventon
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Mechanisms responsible for the photocurrent in bacteriorhodopsin
Physical Review E, 2015Recently, there has been growing interest in the electrical properties of bacteriorhodopsin (bR), a protein belonging to the transmembrane protein family. Several experiments pointed out the role of green light in enhancing the current flow in nanolayers of bR, thus confirming potential applications of this protein in the field of optoelectronics.
ALFINITO, ELEONORA, REGGIANI, Lino
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Mechanism for regulation of immune responses
Journal of Theoretical Biology, 1976Several mechanisms for the control of immune responses have been postulated ( Bretscher & Cohn, 1968; Cohen, 1970; Bretscher, 1972; Jerne, 1974; Marchalonis, Morris & Harris, 1974 ). During the course of several lines of investigation carried out in our laboratory, evidence has been accumulating that would suggest a possible mechanism for the ...
J, Jaroszewski, A, Ahmed, K W, Sell
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The Mechanisms Responsible for the Urge to Defecate
Gastroenterology, 1957Summary The urge to defecate was studied in 49 patients ranging in age from 23 to 71. By means of 2 tandem intra-rectal balloons connected to tambours, motility was studied as the rectum was progressively distended and as patients reported their urges to defecate. Rectal distention appeared to elicit urges when it stimulated rectal contractions.
H P, ROTH, S B, FEIN, M F, STURMAN
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The Molecular Mechanism of Macrophages in Response to Mechanical Stress
Annals of Biomedical EngineeringMacrophages, a type of functionally diversified immune cell involved in the progression of many physiologies and pathologies, could be mechanically activated. The physical properties of biomaterials including stiffness and topography have been recognized as exerting a considerable influence on macrophage behaviors, such as adhesion, migration ...
Yuntong, Su, Xing, Yin
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Mechanisms to Explain Surfactant Responses
Neonatology, 2006Surfactant is now standard of care for infants with respiratory distress syndrome. Surfactant treatments are effective because of complex metabolic interactions between surfactant and the preterm lung. The large treatment dose functions as substrate; it is taken up by the preterm lung and is reprocessed and secreted with improved function.
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Leucodepletion and immune response mechanisms
Vox Sanguinis, 2004The recipient and donor mechanisms responsible for mediat-ing alloimmunity and immunomodulation during bloodtransfusions are complex and most probably superimposedthus creating multilevel fields of potential interaction andregulation. For example, at the recipient level, both the innateand adaptive immune systems can be significantly affectedby various ...
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Mechanics of innovative responsive polymers
Mechanics Research Communications, 2019Abstract The study of responsive structural systems and materials, whose main aim is the development of so-called smart devices capable of autonomously respond to external stimuli with some desired detectable reaction, is nowadays a very attractive research field.
Roberto BRIGHENTI +2 more
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