搜索结果: 1-12 共查到“军事医学与特种医学 activity”相关记录12条 . 查询时间(0.197 秒)
Changes in left ventricular activity during apnea and face immersion
human face immersion left ventricular function apnea cardiac
2009/7/20
Apneic face immersion in water has been analyzed with respect to its effects upon heart rate and ventricular function in a group of highly trained teenaged swimmers of both sexes. Both parameters have...
Spontaneous activity of rat portal vein at normal and elevated hydrostatic pressure
portal vein hyperbaric animal rat
2009/7/16
The effects of high hydrostatic pressure on the spontaneous contractile activity of isolated rat portal veins were studied. During compression, an increase of activity was seen, whereas stable elevate...
Effects of helium-oxygen and hyperbaric helium-oxygen environment on drug-metabolizing enzyme activity in rat liver
heliox drug enzymology Cocaine Morphine O-Demethylase animal rat
2009/7/15
The effects of room-air normoxic (22 degrees C +/- 1 degree C), 1.2-ATA He-O2 (400 mmHg PO2, 29.0 degree C +/- 1 degree C), and 21-ATA He-O2 (400 mmHg PO2, 32.5 degrees C +/- 1 degree C) environments ...
Effect of propranolol on brain electrical activity during hyperbaric oxygenation in the rat
drug brain electrical activity propranolol oxygen toxicity animal rat
2009/7/14
The effect of 1, 2, and 5 mg/kg propranolol on the neuroelectrophysiological manifestations of CNS oxygen toxicity was studied in conscious rats. Cortical electrodes for electrocorticographic (ECoG) r...
Voluntary breath holding affects spontaneous brain activity measured by magnetoencephalography
breath hold magnetoencephalography brain
2009/6/8
Spontaneous brain activity was measured by multichannel magnetoencephalography (MEG) during voluntary breath holds. Significant changes in the activity are limited to the alpha rhythm: 0.25 Hz frequen...
Autonomic nervous activity and stress hormones induced by hyperbaric saturation diving
Autonomic Nervous System physiology Biological Markers analysis Blood Pressure Chromogranin A
2009/6/4
This study describes the changes in autonomic nervous activity and stress hormones during a hyperbaric saturation dive up to 4.1 MPa in six subjects. Their autonomic nervous activity was assessed by a...
Sonar versus whales: noise may disrupt neural activity in deep-diving cetaceans
Orientation physiology Species Specificity Startle Reaction physiology Whales physiology
2009/6/3
INTRODUCTION
In humans, and other terrestrial
animals, acoustic and non-acoustic detrimental
effects of noise have been described long
ago (1,2). In the recent years there is an
increase in publi...
Effect of intermittent hyperbaric oxygen on adjuvant and collagen arthritis in rats: Lack of correlation with activity of oxygen radical scavenging enzymes
Hyperbaric Oxygenation adjuvant arthritis superoxide dismutase collagen arthritis
2009/5/8
We have confirmed a previous report that intermittent hyperbaric oxygen (HBO, 6 h of 100% oxygen at 2 atm followed by 18 h of normobaric room air) ameliorated adjuvant disease of rats, although the m...
Effect of Hyperbaric Oxygen on Free Radical Activity in a Patient With Lepromatous Leprosy
Free Radical Leprosy
2009/5/8
Bertholds M, Andreyev G, Goldstein N. Effect of Hyperbaric Oxygen on Free Radical Activity in a Patient With Lepromatous Leprosy. J. Hyperbaric Med 1989; 4(3):131-134.
The goal of this presentation is to give a brief overview of German activity
in cold water scientific diving. First, we will outline the requirements for
scientific diving under German legislation. ...
Effect of helium and heliox on glutamate decarboxylase activity
helium heliox air glutamate decarboxylase
2009/3/30
The activity of glutamate decarboxylase (GAD) in pure helium at 6.8 MPa was significantly enhanced when compared to GAD activity in air at 0.1 MPa (906 vs. 602 nmol.h-1.mg-1 protein, respectively). No...
Pressure-induced tremor-associated activity in ventral roots in isolated spinal cord of newborn rats
hyperbaric spinal cord animal rat High Pressure Neurologic Syndrome
2009/3/25
Hyperbaric pressure induces hyperexcitability, tremor, and convulsions in intact animals by mechanisms that are not understood. High pressure induces spontaneous electrical discharges in the spinal ve...