نتایج جستجو برای: deficiency sources

تعداد نتایج: 424461  

2014
Gaëtan Parseihian Christophe Jouffrais Brian F. G. Katz

Sound localization studies over the past century have predominantly been concerned with directional accuracy for far-field sources. Few studies have examined the condition of near-field sources and distance perception. The current study concerns localization and pointing accuracy by examining source positions in the peripersonal space, specifically those associated with a typical tabletop surfa...

2015
Kamal Hassan

BACKGROUND Most of the folic acid sources are rich also in potassium. Patients with chronic kidney disease (CKD) usually receive a low potassium diet. We investigated the possibility of an association between low potassium diet and folic acid deficiency. METHODS In total, 128 CKD patients participated in this cross-sectional study. Sixty-four patients with CKD grades 1 and 2 were on an unrest...

2016
Min Zhu Ting Wang Chengdi Wang Yulin Ji

BACKGROUND In recent years, the pleiotropic roles of vitamin D have been highlighted in various diseases. However, the association between serum vitamin D and COPD is not well studied. This updated systematic review and meta-analysis aimed to assess the relationship between vitamin D and the risk, severity, and exacerbation of COPD. METHODS A systematic literature search was conducted in PubM...

Journal: :iranian journal of blood and cancer 0
sm abdelsalam me awad ae eldesouky

background: the aim of the present study was to assess the mean corpuscular volume (mcv) as a surrogate marker for detecting early iron deficiency prior to definitive investigation and treatment. materials and methods: this study was done on one hundred students in swada preparatory school – sharkia governorate from 2010 to 2011. they were subdivided into three groups: group (a): comprised of 3...

Journal: :iranian journal of public health 0
r. keshavarz f. siasi s. sadvandian

six- to sixty months old children were studied in sirjan villages, divided into villages with or without a health house (hh). all the 893 children were medically examined and their food intake was assessed, using the 24-hours dietary recall method. ascorbic acid was determined in blood samples of 199 children. the results obtained are as follows: 1; the average vitamin c intake for all the chil...

2017
Rahel Struchen Flavie Vial Gunnar Andersson

Introduction Taking into account reporting delays in surveillance systems is not methodologically trivial. Consequently, most use the date of the reception of data, rather than the (often unknown) date of the health event itself. The main drawback of this approach is the resulting reduction in sensitivity and specificity1. Combining syndromic data from multiple data streams (most health events ...

2014
Wang Yan Le Jiajin Zhang Yun

The main challenges that marine heterogeneous data integration faces are the problem of accurate schema mapping between heterogeneous data sources. In order to improve the schema mapping efficiency and get more accurate learning results, this paper proposes a heterogeneous data schema mapping method basing on multianalyzer machine learning model. The multianalyzer analysis the learning results ...

Journal: :The Gerontologist 2001
M J Turner T G Shields D Sharp

PURPOSE The goal of this project was to examine the factors related to the high level of voter turnout among older adults and how these factors have changed across the past 50 years. The study builds on previous research efforts by combining individual level analyses from three nationally representative surveys. DESIGN AND METHODS We examined voter turnout among older citizens using the Ameri...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Yu Xie Xiang Zhou

Using multiple data sources, we establish that China's income inequality since 2005 has reached very high levels, with the Gini coefficient in the range of 0.53-0.55. Analyzing comparable survey data collected in 2010 in China and the United States, we examine social determinants that help explain China's high income inequality. Our results indicate that a substantial part of China's high incom...

2003
Pamela Young

The purpose of this research-in-practice study in Edmonton, Alberta, Canada, was to determine what writing strategies adult high school students use and whether these strategies help them to succeed in their school-based writing assignments. Since student journals were used as a data source, the study features student descriptions of writing strategies and their effectiveness. The author shares...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید