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13 resultater
"Choking game" awareness and participation among 8th graders--Oregon, 2008.
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The "choking game" is an activity in which persons strangulate themselves to achieve euphoria through brief hypoxia. It is differentiated from autoerotic asphyxiation. The activity can cause long-term disability and death among youths. In 2008, CDC reported 82 deaths attributed to the choking game
Effect of hypoxia on the development of Drosophila melanogaster (Meigen).
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Specimens of Oregon-R Drosophila melanogaster (Meigen) were bred in a defined sexual ratio in test chambers under different partial pressures of O2. In the gas mixture of 5--7% O2 plus 93--95% N2, the number of ovules dropped to nearly half even in the first generation, the time period of each
[The effect of altered oxygen partial pressure on the resisitance to hypoxia and expression of oxygen-sensitive genes in Drosophila melanogaster].
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As a result of resistance test to hypoxia of Drosophilas melanogaster of Oregon strain, we identified a high resistance (Group II) and low resistance (Group III) subpopulations of flies. Flies from groups II and III were incubated in a constant normobaric hypoxia (Po2=62-64 mm Hg) for 10
All rainbow trout (Oncorhynchus mykiss) are not created equal: intra-specific variation in cardiac hypoxia tolerance.
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All of our previous work, and that of other investigators, shows that the trout heart only partially recovers following brief exposure to severe hypoxia or anoxia (i.e. it is hypoxia-sensitive). However, in preliminary studies, we found evidence to suggest that rainbow trout reared at a farm in
Different effects of metformin and phenformin on hypoxia-induced Ca 2+ fluxes in cultured primary neurons
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Recent evidence suggests that metformin and phenformin may exert beneficial effects against neuronal injury in the ischemic brain, however, the difference of action between these two drugs and the molecular mechanism of such protection is not clear. In this study, we investigated whether mild
Processes influencing seasonal hypoxia in the northern California Current System.
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This paper delineates the role of physical and biological processes contributing to hypoxia, dissolved oxygen (DO) < 1.4 mL/L, over the continental shelf of Washington State in the northern portion of the California Current System (CCS). In the historical record (1950-1986) during the summer
Anoxia-mediated calcium release through the mitochondrial permeability transition pore silences NMDA receptor currents in turtle neurons.
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Mammalian neurons are anoxia sensitive and rapidly undergo excitotoxic cell death when deprived of oxygen, mediated largely by Ca(2+) entry through over-activation of N-methyl-d-aspartate receptors (NMDARs). This does not occur in neurons of the anoxia-tolerant western painted turtle, where a
Individual-based energetic model suggests bottom up mechanisms for the impact of coastal hypoxia on Pacific harbor seal (Phoca vitulina richardii) foraging behavior.
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Wind-driven coastal hypoxia represents an environmental stressor that has the potential to drive redistribution of gilled marine organisms, and thereby indirectly affect the foraging characteristics of air-breathing upper trophic-level predators. We used a conceptual individual-based model to
An hypoxia-tolerant flatfish: consequences of sustained stress on the slender sole Lyopsetta exilis (Pleuronectidae) in the context of a changing ocean.
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Slender sole Lyopsetta exilis is an abundant groundfish on the continental shelf and inner waters of British Columbia, Canada, where it reaches a maximum standard length of 44 cm. Benthic image surveys coupled with oxygen measurements in Saanich Inlet document a dense population (up to 200 100
[Propofol sedation administered by nurses for endoscopic procedures].
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BACKGROUND
As an increasing number of therapeutic and diagnostic procedures are performed endoscopically, the demand for sufficient sedation during endoscopy is rising. Propofol sedation administered by nurses (NAPS) has gained increasing popularity. NAPS was introduced at Gentofte Hospital in
Transcriptome-wide polymorphisms of red abalone (Haliotis rufescens) reveal patterns of gene flow and local adaptation.
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Global climate change is projected to accelerate during the next century, altering oceanic patterns in temperature, pH and oxygen concentrations. Documenting patterns of genetic adaptation to these variables in locations that currently experience geographic variation in them is an important tool in
Low-dose propofol for the abortive treatment of pediatric migraine in the emergency department.
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OBJECTIVE
Limited progress has been made in the past decade for abortive treatment of migraine headache in the pediatric emergency department (PED). Propofol, a general anesthetic, has been reported to be effective in the treatment of refractory headaches in adults at subanesthetic doses but never
Effects of harmful algal blooms and associated water-quality on endangered Lost River and shortnose suckers
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Anthropogenic eutrophication contributes to harmful blooms of cyanobacteria in freshwater ecosystems worldwide. In Upper Klamath Lake, Oregon, massive blooms of Aphanizomenon flos-aquae and smaller blooms of other cyanobacteria are associated with cyanotoxins, hypoxia, high pH, high concentrations
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