11 Result(s)
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Article
C. E. Cooper
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Numbats and aardwolves—how low is low? A re-affirmation of the need for statistical rigour in evaluating regression predictions
Many comparative physiological studies aim to determine if a particular species differs from a prediction based on a linear allometric regression for other species. However, the judgment as to whether the spec...
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Effect of torpor on the water economy of an arid-zone marsupial, the stripe-faced dunnart (Sminthopsis macroura)
Metabolic rate and evaporative water loss (EWL) were measured for a small, arid-zone marsupial, the stripe-faced dunnart (Sminthopsis macroura), when normothermic and torpid. Metabolic rate increased linearly wit...
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Ventilatory physiology of the numbat (Myrmecobius fasciatus)
This study examines the ventilatory physiology of the numbat (Myrmecobius fasciatus), a small to medium-sized (550 g) termitivorous marsupial. Ventilatory parameters at thermoneutrality reflect the slightly low (...
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Field metabolic rate and water turnover of the numbat (Myrmecobius fasciatus)
The numbat (Myrmecobius fasciatus) is a diurnal and exclusively termitivorous marsupial. This study examines interrelationships between diet, metabolic rate and water turnover for wild, free-living numbats. The n...
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Proton Magnetic Resonance Spectroscopy of the Brain during Acute Hypoxia-Ischemia and Delayed Cerebral Energy Failure in the Newborn Piglet
Studies of the brains of severely birth-asphyxiated infants using proton(1H) magnetic resonance spectroscopy (MRS) have shown changes indicating a rise in cerebral lactate (Lac) and a fall in N- acetylaspartate (...
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Mild Hypothermia after Severe Transient Hypoxia-Ischemia Reduces the Delayed Rise in Cerebral Lactate in the Newborn Piglet
This study tested the hypothesis that mild hypothermia after severe transient hypoxia-ischemia reduces the subsequent delayed rise in cerebral lactate peak-area ratios as determined by proton (1H) magnetic resona...
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The Noninvasive Measurement of Absolute Cerebral Deoxyhemoglobin Concentration and Mean Optical Path Length in the Neonatal Brain by Second Derivative Near Infrared Spectroscopy
We have used second differential near infrared spectroscopy of water to determine the mean optical path length of the neonatal brain. By obtaining the ratio of the second differential features of deoxyhemoglob...
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Mild Hypothermia after Severe Transient Hypoxia-Ischemia Ameliorates Delayed Cerebral Energy Failure in the Newborn Piglet
ABSTRACT: Severely birth-asphyxiated human infants develop delayed (“secondary”) cerebral energy failure, which carries a poor prognosis, during the first few days of life. This study tested the hypothesis tha...
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Delayed (“Secondary”) Cerebral Energy Failure after Acute Hypoxia-Ischemia in the Newborn Piglet: Continuous 48-Hour Studies by Phosphorus Magnetic Resonance Spectroscopy
ABSTRACT: Phosphorus (31P) spectra from the brains of severely birth-asphyxiated human infants are commonly normal on the first day of life. Later, cerebral energy failure develops, which carries a serious progno...
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Transport of K+ and other cations across phospholipid membranes by nonesterified fatty acids
The rate of change of internal pH and transmembrane potential has been monitored in liposomes following the external addition of various cation salts. Oleic acid increases the transmembrane movement of H+ followi...
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Temocillin
Temocillin, a 6-α-methoxy penicillin derivative, was tested in vitro against 516 recent clinical isolates of Enterobacteriaceae. The compound exhibited good antibacterial activity, with 95% of is...
