The common frog, Rana temporaria, overwinters under the ice of frozen lakes and ponds, during which time metabolic, respiratory and behavioural adjustments act in concert to conserve metabolic fuels by promoting aerobic metabolism. Animal behaviour…
INTRODUCTION: Critical Care Transport teams use various strategies to maintain temperature sensitive drugs and equipment at optimal temperature. The purpose of this study was to examine the effectiveness of current passive refrigeration of…
The effect of incorporation of 1-palmitoyl-sn-glycero-3-phosphocholine (PLPC) on the bilayer structures occurring in aqueous dispersions of 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine (DPPE) has been studied by phosphorus 31 nuclear magnetic…
Penetration of the KOS strain of herpes simplex virus type 1 (HSV-1) and the MS and 333 strains of herpes simplex virus type 2 (HSV-2) into HEp-2 cells at pH 6.3 was at least 100-fold less efficient than at pH 7.4. Penetration of two low passage…
Background: Usually, pleural fluid (PF) pH is measured immediately following thoracentesis, and if there is any delay in the measurement, the PF sample is preserved on ice. Objective: To determine if PF pH changes significantly at room temperature…
Amphibians overwintering in ice-covered aquatic environments encounter levels of hypoxia that present significant challenges to the maintenance of aerobic metabolism. Earlier laboratory experiments showed that cold-submerged frogs will seek out lower…
At the low temperatures of the overwintering environment of the frog Rana temporaria, small changes in ambient temperature have large effects on metabolism and behaviour, especially since Q(10) values are often greatly elevated in the cold. How the…
Arboreal primates actively navigate a complex thermal environment that exhibits spatial, daily, and seasonal temperature changes. Thus, temperature measurements from stationary recording devices in or near a forest likely do not reflect the thermal…
Thyroid hormones boost animals' basal metabolic rate and represent an important thermoregulatory pathway for mammals that face cold temperatures. Whereas the cold thermal pressures experienced by primates in seasonal habitats at high latitudes and…
The interaction of eight n-alkanols with bilayers of dimyristoylphosphatidylcholine (DMPC) has been studied by deuterium nuclear magnetic resonance (2H-NMR). At comparable temperatures and concentrations of solute in the bilayer, order parameters…
