منابع مشابه
Fatness and fertility: which direction?
Metabolic status has long been thought to determine reproductive status, with abnormal metabolic phenotypes altering reproductive cascades, such as the onset of puberty. In this issue of the JCI, Tolson and colleagues provide evidence that kisspeptin, a hormone that promotes sexual maturation, regulates metabolism. Female mice lacking the kisspeptin receptor (KISS1R) gained more weight than con...
متن کاملValidity and reliability of skinfold measurement in assessing body fatness of Chinese children.
BACKGROUND Validity and reliability of skinfold equations in estimating body fat in Chinese Children has not been documented. OBJECTIVE Using Air Displacement Plethysmography (ADP) as a criterion, the validity and reliability of skinfold (SKF) measurement in predicting percent body fat (% fat) of Chinese children in Hong Kong were evaluated. DESIGN 230 Chinese children in Hong Kong were rec...
متن کاملAn Efficient Markov Chain Monte Carlo Method for Distributions with Intractable Normalising Constants
We present new methodology for drawing samples from a posterior distribution when (i) the likelihood function or (ii) a part of the prior distribution is only specified up to a normalising constant. In the case (i), the novelty lies in the introduction of an auxiliary variable in a Metropolis-Hastings algorithm and the choice of proposal distribution so that the algorithm does not depend upon t...
متن کاملcompactifications and representations of transformation semigroups
this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...
15 صفحه اولMiscellanea An efficient Markov chain Monte Carlo method for distributions with intractable normalising constants
Maximum likelihood parameter estimation and sampling from Bayesian posterior distributions are problematic when the probability density for the parameter of interest involves an intractable normalising constant which is also a function of that parameter. In this paper, an auxiliary variable method is presented which requires only that independent samples can be drawn from the unnormalised densi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Lancet
سال: 1987
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(87)91212-8