نتایج جستجو برای: before birth
تعداد نتایج: 586259 فیلتر نتایج به سال:
AIM Determine if the association of HIF3A DNA methylation with weight and adiposity is detectable early in life. MATERIAL & METHODS We determined HIF3A genotype and DNA methylation patterns (on hybridization arrays) in DNA extracted from umbilical cords of 991 infants. Methylation levels at three CpGs in the HIF3A first intron were related to neonatal and infant anthropometry and to genotype ...
Anencephaly is one of the most frequent type of all fetal monstrosities. Sprangler7, who studied 11,52i births, has reported the incidence of anencephaly as I in every goo, or approximately O.1 per cent. The condition was not successfully diagnosed previous to labor until 1917, when Case2 reported such a monstrosity, recognized roentgenologically before the onset of labor. Since that time there...
Chromosome analysis of amniotic cell cultures was achieved in 29 out of 30 consecutive patients who were referred for genetic counselling during pregnancy. Amniocentesis was performed without any apparent untoward maternal or fetal complication. The only pregnancy terminated was that of a carrier of X-linked granulomatous disease, in whom the amniotic cells showed that the fetus was male and al...
I propose a new measure of common, time-varying tail risk for large cross sections of stock returns. Stock return tails are described by a power law in which the power law exponent is allowed to transition smoothly through time as a function of recent data. It is motivated by asset pricing theory and is estimable via quasi-maximum likelihood. Estimates indicate substantial time variation in sto...
In a distributed system, it is often important to detect the causal relationships between events, where event e1 is causally before event e2 if e1 happened before e2 and could possibly have aaected the occurrence of e2. In this paper we argue that it can be essential to security that a process determine, in the face of malicious attack, how two events are causally related. We formulate attacks ...
In this article, we present a particle filter (PF)-based track-before-detect (PF TBD) procedure for detection of extended objects whose shape is modeled by an ellipse. By incorporating of an existence variable and the target shape parameters into the state vector, the proposed algorithm performs joint estimation of the target presence/ absence, trajectory and shape parameters under unknown nuis...
background: preterm birth is the major cause of neonatal mortality and morbidity. objective: the aim of this study was to evaluate the effect of prophylactic vaginal progesterone on decreasing preterm birth rate and neonatal complications in a high-risk population. materials and methods: a randomized, double-blind, placebo-controlled study was performed on 100 high-risk singleton pregnancies. v...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید