منابع مشابه
Energy intake: reduced as prescribed?
A classic clinical observation is an overweight or obese patient’s failure to lose weight despite reporting a severely restricted caloric intake (1). Similarly, very modest weight loss is observed in numerous long-term calorie restriction studies (2). Although in both cases we suspect that the participants are eating more than reported or prescribed, confirming this hypothesis is remarkably dif...
متن کاملEnergy balance as a function of adjustment of energy intake.
Humans maintain a perfect energy balance as shown by a constant body weight in adult life. However, energy intake does not balance energy expenditure on a daily basis, as in small animals. Humans can afford to rely on body reserves while smaller species show signs of energy shortage sooner, as expressed in a lowered body temperature and reduced physical activity. Thus, a mouse cannot survive 3 ...
متن کاملSemilinear Parabolic Equations with Prescribed Energy
In this paper we study the following reaction-di usion equation ut = u+ f(u; k(t)) subject to appropriate initial and boundary conditions, where f(u; k(t)) = u k(t) or k(t)u with p > 1 and k(t) is an unknown function. An additional energy type condition is imposed in order to nd the solution u(x; t) and k(t). This type of problem is frequently encountered in nuclear reaction process, where the ...
متن کاملAmmonotely in a neotropical frugivorous bat as energy intake decreases.
We tested the role of increased ammonia in urine as an energy- and/or nitrogen (N)-saving mechanism in the great fruit-eating bat Artibeus lituratus (Phyllostomidae). We compared N excretion in two groups of bats fed energy-rich (2.75 kJ g(-1) wet mass) or energy-poor diets (0.7 kJ g(-1) wet mass). Within each diet, bats were assigned to different N contents. In order to function as an energy-s...
متن کاملRanks and eigenvalues of states with prescribed reduced states
For a quantum state represented as an n×n density matrix σ ∈ Mn, let S(σ) be the compact convex set of quantum states ρ = (ρij) ∈ Mm·n with the first partial trace equal to σ, i.e., tr1(ρ) = ρ11 + · · ·+ ρmm = σ. It is known that if m ≥ n then there is a rank one matrix ρ ∈ S(σ) satisfying tr1(ρ) = σ. If m < n, there may not be any rank one matrix in S(σ). In this paper, we determine the ranks ...
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ژورنال
عنوان ژورنال: The American Journal of Clinical Nutrition
سال: 2011
ISSN: 0002-9165,1938-3207
DOI: 10.3945/ajcn.111.018630