نتایج جستجو برای: periconceptional period

تعداد نتایج: 490693  

2013
Andrew E. Czeizel Istvan Dudás Attila Vereczkey Ferenc Bánhidy

Diet, particularly vitamin deficiency, is associated with the risk of birth defects. The aim of this review paper is to show the characteristics of common and severe neural-tube defects together with congenital heart defects (CHD) as vitamin deficiencies play a role in their origin. The findings of the Hungarian intervention (randomized double-blind and cohort controlled) trials indicated that ...

2014
J. J. Goeman R. Monajemi H. Gu H. Putter Elmar W. Tobi Jelle J. Goeman Ramin Monajemi Hongcang Gu Hein Putter Yanju Zhang Roderick C. Slieker Arthur P. Stok Peter E. Thijssen Fabian Müller Erik W. van Zwet Christoph Bock Alexander Meissner L. H. Lumey P. Eline Slagboom Bastiaan T. Heijmans

Periconceptional diet may persistently influence DNA methylation levels with phenotypic consequences. However, a comprehensive assessment of the characteristics of prenatal malnutrition-associated differentially methylated regions (P-DMRs) is lacking in humans. Here we report on a genome-scale analysis of differential DNA methylation in whole blood after periconceptional exposure to famine duri...

Journal: :Southern medical journal 2001
M M Iqbal S P Gundlapalli W G Ryan T Ryals T E Passman

Pregnancy presents a special problem to the clinician treating bipolar disorders in women. Since the first episode of mania typically occurs before the age of 30, many women in their prime childbearing years may be exposed to potentially teratogenic mood-stabilizing agents. This exposure may also continue for the nursing infant during lactation. Pregnancy itself can exacerbate bipolar symptoms ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و زبانهای خارجی 1393

the current study aimed at investigating the relationship between motivation and test preparation strategies (tpss) used by iranian pre-university students in their preparation period for the university entrance exam (uee). due to the importance of uee in iran, this study also attempted to show its impact on these two important variables. to this end, 100 pre-university students in an iranian p...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Bastiaan T Heijmans Elmar W Tobi Aryeh D Stein Hein Putter Gerard J Blauw Ezra S Susser P Eline Slagboom L H Lumey

Extensive epidemiologic studies have suggested that adult disease risk is associated with adverse environmental conditions early in development. Although the mechanisms behind these relationships are unclear, an involvement of epigenetic dysregulation has been hypothesized. Here we show that individuals who were prenatally exposed to famine during the Dutch Hunger Winter in 1944-45 had, 6 decad...

Journal: :Attention, perception & psychophysics 2013
Kyunghun Jung Eric Ruthruff Nicholas Gaspelin

Much research has suggested that facial identification has some characteristics of automaticity, in that it is rapid, nonconscious, and mandatory. However, little research has tested whether it can occur even if attention is already devoted to the demanding central processes of another task. In the present study, we addressed this type of automaticity using the psychological refractory period p...

2010
JOHN GARNETT ROWAN KILLIP RAANAN SCHUL

For d ≥ 2, we construct a doubling measure ν on Rd and a rectifiable curve Γ such that ν(Γ) > 0.

Journal: :Psychology and aging 2002
Philip A Allen Mei-Ching Lien Martin D Murphy Raymond E Sanders Katherine S Judge Robert S McCann

Two psychological refractory period (PRP) experiments were conducted to examine overlapping processing in younger and older adults. A shape discrimination task (triangle or rectangle) for Task 1 (T1) and a lexical-decision task (word or nonword) for Task 2 (T2) were used. PRP effects, response time for T2 increasing as stimulus onset synchrony (SOA) decreased, were obtained for both age groups....

2000
STAVROS GAROUFALIDIS

Even though the (untwisted) Whitehead doubling operation kills all known abelian invariants of knots (and makes them topologically slice), we show that it does not kill the rational function that equals to the 2-loop part of the Kontsevich integral.

2012
Joshua W. Pollock Nadia Khoja Kevin P. Kaut Mei-Ching Lien Philip A. Allen

The present study examined adult age differences in processing emotional faces using a psychological refractory period paradigm. We used both behavioral and event-related potential (P1 component) measures. Task 1 was tone discrimination (fuzzy vs. pure tones) and Task 2 was emotional facial discrimination ("happy" vs. "angry" faces). The stimulus onset asynchrony (SOA) between the two tasks was...

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