Results 221 to 230 of about 1,395,647 (265)
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Analysis of Human Epidural Pressures
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control, 1992Background and Objectives. During performance of epidural injection, entry into the epidural space has traditionally been determined by identification of negative pressure to the advancing needle by indirect means such as hanging drop; loss of resistance to air, saline, or water; or use of a MacIntosh balloon ...
P S, Thomas, J I, Gerson, G, Strong
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Cough Gastric Pressure and Maximum Expiratory Mouth Pressure in Humans
American Journal of Respiratory and Critical Care Medicine, 2003Abstract Maximal expiratory mouth pressure is a well established test that is used to assess expiratory muscle strength. However, low values are difficult to interpret, as they may result from technical difficulties in performing the test, particularly in patients with facial muscle weakness or bulbar dysfunction. We hypothesized that
MAN W. D. C. +8 more
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Pain and pressure in the human pulp
Oral Surgery, Oral Medicine, Oral Pathology, 1972Abstract The rich innervation of the pulp loses its mystery and the uniqueness of its sensation only to pain when the gate theory is applied to it. In the intact tooth, with its protective shell of enamel and dentine, there is a low level of ongoing neural activity probably related to blood flow and cardiac systole.
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Pressure-Induced Apoptosis in Human Lymphoblasts
Experimental Cell Research, 1997The viability of human lymphoblasts was investigated after compression at 37 degrees C for 30 min. Immediately after decompression, necrotic cells were observed and the viability decreased sigmoidally to 0 with increasing pressure from 85 to 200 MPa. Apoptotic cells began to be observed from 8 h after decompression in the case of compression at 100 MPa
K J, Takano +3 more
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Effect of Dichlorphenamide on the Intraocular Pressure of Humans
Archives of Ophthalmology, 1958Introduction The effect of acetazolamide (Diamox), a carbonic anhydrase inhibitor, on the intraocular pressure of humans was first reported by Becker (1954), who pointed out the value of this drug in the treatment of glaucoma. Becker's observations have been confirmed and extended by other investigators (Grant and Trotter, 1954; Breiner and Gortz ...
E, GONZALES-JIMENEZ, I H, LEOPOLD
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PRESSURE WAVE VELOCITY IN THE HUMAN AORTA*
Journal of the American Geriatrics Society, 1968A bstract After introduction of a catheter into the aorta, the pressure wave velocity was measured in 26 subjects whose ages ranged from 9 to 68 years. The first site of registration was approximately 10 cm from the aortic valve, and the second was 50 cm ...
B L, Nielsen, J S, Nielsen, J, Fabricius
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Peristaltic Pressure Profiles of the Human Esophagus
Journal of Clinical Gastroenterology, 2000Using a low-compliance pneumohydraulic infusion system, we mapped the entire esophagus of nine volunteers with no history of esophageal disease, centimeter by centimeter, to see if there was pressure symmetry throughout the esophagus during 5 mL wet swallows. We found that esophageal length varied from 21-25 cm.
G W, Meyer, D C, Gernhardt, D O, Castell
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Heredity and blood pressure in humans: an overview
Pediatric Nephrology, 1987This paper presents a review of the genetic transmission of normal blood pressure and of essential hypertension. Familial aggregation of normal blood pressure has been reported in adults, in children and even in newborns. Blood pressure aggregation phenomenon, however, is the result of both a genetic component and shared environmental factors.
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Effect of Reduced Pressure on Human Performance
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1967The purpose of this study was to determine whether reduced pressure (1.5 psi) versus ambient pressure (14.7 psi) had a differential effect on man's performance in a pressurized (3.7 psi) Apollo suit. Two subjects were tested on three different types of tasks: psychomotor, a lunar mission-specific task, and walking.
J L, Seminara +2 more
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2007
Abstract The BP is a highly multifactorial variable, meaning that it is influenced by virtually all that goes on in the circulation. This makes it of the utmost value as an indicator of future cardiovascular risk, assuming that it is measured by adequate methodology.
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Abstract The BP is a highly multifactorial variable, meaning that it is influenced by virtually all that goes on in the circulation. This makes it of the utmost value as an indicator of future cardiovascular risk, assuming that it is measured by adequate methodology.
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