نتایج جستجو برای: socioeconomic base
تعداد نتایج: 306179 فیلتر نتایج به سال:
A rea based measures of socioeconomic deprivation are often used as proxies for personal socioeconomic position. But sometimes people of high socioeconomic position live in deprived areas, and vice versa. 2 This means that adjusting for area deprivation (only) may leave residual confounding for any exposure-outcome association in which socioeconomic position is strongly implicated. The purpose ...
موضوع این تحقیق به تهیه ی سیستم های کاتالیزوری باز شیف مولیبدن{pvc-en-sciff base -[moo2(acac)] , pvc-en-schiff base-[mo(co)4] و pvc-ea-[moo2(acac) } متصل به پلی وینیل کلرید و بررسی فعالیت کاتالیزوری آنها اختصاص دارد. بر این اساس ابتدا ترکیبات مولیبدن باز شیف از طریق پیوند کووالانسی به پلی وینیل کلرید متصل و به وسیله تکنیک های اسپکتروسکوپی شناسایی شدند. این سیستم ها در اپوکسایش آلکن ها درنقش کات...
در این پروژه تاثیر مواد جوانه زای حاوی تیتانیم و بور (al-5ti-1b) و زیرکنیم (al-15zr)، همراه با اثر عناصر نادر خاکی (misch metal) بر خواص کششی و ریز ساختار آلیاژ al-12zn-3mg-2.5cu بررسی شد. دو دسته از عناصر میش متال یعنی غنی از سریم (ce base) و غنی از لانتانیم (la base) مورد استفاده قرار گرفت. مقدار بهینه جوانه زاها که 05/0 درصد تیتانیم و 3/0 درصد زیرکنیم است، جداگانه به همراه 1/0، 3/0، 5/0، 1، ...
This longitudinal study examined the protective influence of psychological and family factors on academic achievement in 123 Latino college (101 Mexican American, 14 Central American, 8 mixed Mexican/Central American) students. Three cultural resources--ethnic identity, family interdependence, and parental support--were hypothesized as protective factors that modify the effects of socioeconomic...
OBJECTIVE Despite a rapidly growing economy and rising income levels in India, improvements in child malnutrition have lagged. Data from the most recent National Family Health Survey reveal that the infant and young child feeding (IYCF) practices recommended by the WHO and the Indian Government, including the timely introduction of solid food, are not being followed by a majority of mothers in ...
This study aimed to establish a correlation between anthropometric and socioeconomic variables and repetition in school for first grade pupils, as well to determine the predictive value of such variables vis-à-vis repetition. A study with a prospective and concurrent approach was developed in four elementary schools in Belo Horizonte, Minas Gerais State, with 699 children (95% of those eligible...
In Bangladesh, preference for place of delivery and socioeconomic factors associated with caesarean section are not well-understood. This paper examines the socioeconomic correlates of preference for institutional delivery and caesarean sections in Bangladesh. The study used data from the nationally-representative 2007 Bangladesh Demographic and Health Survey. Both bivariate and multivariate bi...
BACKGROUND Our knowledge of the influence of place of birth and socioeconomic status on attempted suicide in a defined national population is limited. METHODS The study population at baseline in 1993 included approximately 4.5 million Swedish persons aged 25 to 64 years, of whom 570 000 had been born abroad. Each individual was tracked until attempted suicide, remigration, death, or the end o...
The first years of life are the most dynamic period for childhood growth. There are limited data available on growth patterns of infants and children living in rural Latin America. The aim of this study was to describe the growth patterns from birth to 5years in children living in a rural District of tropical coastal Ecuador using data from a birth cohort of 2404 neonates. We hypothesize that t...
OBJECTIVE To assess the relation between socioeconomic factors and the use of physician services among children and whether variations of the level of co-payment are correlated with different levels of inequalities in health services use. DESIGN Description of the socioeconomic differences in the use of health care using data from countrywide postal surveys to parents. SETTING The five Nord...
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