Neuronal models in temperature regulation are primarily considered explicit statements of assumptions and premises used in design of experiments and development of descriptive equations concerning the relationships between thermal inputs and control actions. Some of the premises of current multiplicative models are discussed in relation to presently available experimental evidence. The results ...

Seasonal changes in temperature and photoperiod are important environmental cues used by small birds to adjust their body mass (Mb) and thermogenesis. However, the relative importance of these cues with respect to seasonal adjustments in Mb and thermogenesis is difficult to distinguish. In particular, the effects of temperature and photoperiod on energy metabolism and thermoregulation are not w...

OBJECTIVE White adipose tissue (WAT) and brown adipose tissue (BAT) play distinct roles in adaptation to changes in nutrient availability, with WAT serving as an energy store and BAT regulating thermogenesis. We previously showed that mice maintained on a leucine-deficient diet unexpectedly experienced a dramatic reduction in abdominal fat mass. The cellular mechanisms responsible for this loss...

Infusion of 5-20% glucose, 1.8-3.6% NaCl, 20% methylglucose, 20% fructose, or 5-10% solutions of various amino acids (10 ml x kg(-1)) into the duodenum induced dose-dependent thermogenesis in urethane-anaesthetized rats. In contrast, infusion of 0.9% NaCl, distilled water, or safflower oil had no effect on the metabolic rate. Infusion of 7.2% urea induced a small and transient increase in the m...

It is probably unprecedented that an afterdinner speech for the general public is converted into a review article that, 65 years later, is still on an exponential growth curve of citations in the primary scientific literature. But then again, Archibald Vivian Hill was not your average after-dinner speaker. Hill shared a Nobel Prize in 1922 for his discoveries related to muscle heat production a...

The market of small or micro electric energy generation units, often combined with local heat production, is becoming increasingly important. For these applications the classical asynchronous machine with cage rotor is an interesting generator. The grid-connected induction generator has some advantages over the synchronous generators: e.g. it is cheap, robust and maintenance-free. Since the ind...