Results 371 to 380 of about 10,661,666 (408)
The American Journal of Digestive Diseases, 1963 1. The intramural blood vessels of the human colon have been described. 2. Five methods that have been used to study colonic mucosal blood flow in patients with colostomies or with normal colons were briefly outlined along with some of the limitations of each technic. 3.
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Archives of General Psychiatry, 1986
To evaluate dorsolateral prefrontal cortex (DLPFC) physiology and function simultaneously, 20 medication-free patients with chronic schizophrenia and 25 normal controls underwent three separate xenon Xe 133 inhalation procedures for determination of ...
D. Weinberger, K. Berman, R. Zec
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To evaluate dorsolateral prefrontal cortex (DLPFC) physiology and function simultaneously, 20 medication-free patients with chronic schizophrenia and 25 normal controls underwent three separate xenon Xe 133 inhalation procedures for determination of ...
D. Weinberger, K. Berman, R. Zec
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The Bulletin of Mathematical Biophysics, 1967
The rigidity of the skull and the inertial characteristics and incompressibility of its contents cause the elastic cerebral arteries and veins to act over brief periods of time like rigid tubes of relatively small diameter. Poiseuille's law is applicable to their behavior.
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The rigidity of the skull and the inertial characteristics and incompressibility of its contents cause the elastic cerebral arteries and veins to act over brief periods of time like rigid tubes of relatively small diameter. Poiseuille's law is applicable to their behavior.
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Blood flows and magnetohydrodynamics
2009In order to improve the quality of the images provided by Magnetic Resonance Imaging (MRI), the magnetic field used in MRI is getting larger and larger: from 3T nowadays, it might increase in the future up to 10T in clinical scanners. The impact of such a large magnetic field on health is still in debate.
Martin, Vincent +6 more
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New England Journal of Medicine, 1966
TWENTY years ago Drs. Seymour Kety and Carl Schmidt first described the inert-gas technic for the quantitative measurement of cerebral blood flow.
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TWENTY years ago Drs. Seymour Kety and Carl Schmidt first described the inert-gas technic for the quantitative measurement of cerebral blood flow.
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The Flow of Blood in the Capillaries
Physics in Medicine & Biology, 1968A model consisting of right circular cylinders moving through a tube is chosen to represent the flow of corpuscles through the capillaries. A numerical solution of the equations of motion enables the flow to be considered in detail. The pressure gradient-volume flux relationships are calculated for different values of the parameters of the system. Flow
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Magnetic Resonance in Medicine, 1996
The authors review the theoretical basis of determination of cerebral blood flow (CBF) using dynamic measurements of nondiffusible contrast agents, and demonstrate how parametric and nonparametric deconvolution techniques can be modified for the special ...
L. Østergaard +4 more
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The authors review the theoretical basis of determination of cerebral blood flow (CBF) using dynamic measurements of nondiffusible contrast agents, and demonstrate how parametric and nonparametric deconvolution techniques can be modified for the special ...
L. Østergaard +4 more
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, 2017
The cardiovascular system transports gases (oxygen and carbon dioxide), nutrients, enzymes, hormones, and heat between the respiratory, digestive, endocrine, and excretory systems and the cells of the body.
Alberto Figueroa +2 more
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The cardiovascular system transports gases (oxygen and carbon dioxide), nutrients, enzymes, hormones, and heat between the respiratory, digestive, endocrine, and excretory systems and the cells of the body.
Alberto Figueroa +2 more
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Journal of Biomechanics, 1979
Abstract Pulmonary hemodynamics is studied in terms of the quasi one-dimensional unsteady nonlinear fluid flow equations which are applied to the 40-odd generations of branched arterial, capillary and venous distensible vessel segments making up the four lobes of the complete lung.
J.A. Maccario, R. Collins
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Abstract Pulmonary hemodynamics is studied in terms of the quasi one-dimensional unsteady nonlinear fluid flow equations which are applied to the 40-odd generations of branched arterial, capillary and venous distensible vessel segments making up the four lobes of the complete lung.
J.A. Maccario, R. Collins
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Pediatrics, 1984
To the Editor.— Hansen and co-workers1 have taken the time to address a question of considerable import, ie, whether the use of Doppler continuous wave forms provides a means of reflecting changes in brain blood flow when the anterior cerebral artery is used.
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To the Editor.— Hansen and co-workers1 have taken the time to address a question of considerable import, ie, whether the use of Doppler continuous wave forms provides a means of reflecting changes in brain blood flow when the anterior cerebral artery is used.
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