نتایج جستجو برای: cohort series
تعداد نتایج: 563776 فیلتر نتایج به سال:
این پایان نامه براساس مقاله ای تحت عنوان "discontinuous derivations from algebras of power series" تهیه شده که توسط dales و bade درسال 1989 ارائه شده است . فرض کنیم a جبرباناخ جابجائی باشد. درسالهای اخیر تعدادی از مقاله ها مسئله دادن شرایط لازم وکافی روی a برای اینکه همه مشتقات از a بداخل هر -a مدول باناخ بطور خودکار پیوسته باشند را مطالعه کرده اند. برای مثال، فرض کنیم a جبرباناخ جدائی پذیر جاب...
خشکبار و آجیل از محصولات صادراتی کشور می باشند که کیفیت بالا و عاری از آلودگی بودن آن ها به آفات، مانند کنه های انباری اهمیت ویژه ای دارد. برای بررسی فون کنه های محصولات خشکبار و میوه های خشک در سه شهر مشهد، نیشابور و سبزوار در طول سال 93-1392 نمونه گیری هایی انجام شد. نمونه ها از محصولاتی شامل: توت خشک، آلو، گردو، انجیر خشک، هلو، تخمه هندوانه، تخمه کدو، کشمش، خرمای تازه، خرمای خشک، زردآلو، تخم...
Study selection Study designs of evaluations included in the review Randomised controlled trials (RCTs) or systematic reviews of RCTs of more than 4 weeks' duration were included for questions about cardiovascular disease. Cohort or case-control studies with more than 50 participants, or RCTs were included for questions about cancer. Case reports, case series, cohort or surveillance studies, or...
This is the final article in a series based on a study of a cohort of Irish drug abusers. Previous papers dealt with the overall social (Carr et al., 1980) and psychological (Carr et al., 1981) characteristics of the cohort. While certain general trends were identified, perhaps the most striking feature of the data was the variability that exists between subjects. In the present paper this vari...
INTRODUCTION Difficulties with visual perception (VP) are often described in children with neurological or developmental problems. However, there are few data regarding the range of visual perceptual abilities in populations of normal children, or on the impact of these abilities on children's day-to-day functioning. METHODS Data were obtained for 4512 participants in an ongoing birth cohort ...
Researchers have described the association of a common DNA polymorphism, rs7566605, near INSIG2 (insulin-induced gene 2) with obesity in multiple independent populations that include subjects ages 11-60 years.1 To our knowledge, no studies have examined the association of this polymorphism with weight status during early childhood. We explored the association of the rs7566605 polymorphism with ...
Building upon evidence linking socio-economic position (SEP) in childhood and adulthood with health-related behaviours (HRB) in adulthood, we examined how pre-adolescent SEP predicted membership of three HRB clusters: "Risky", "Moderate Smokers" and "Mainstream" (the latter pattern consisting of more beneficial HRBs), that were detected in our previous work. Data were taken from two British coh...
OBJECTIVES Prior work has examined the shape of the income-mortality association, but work has not compared gradients between countries. In this study, we focus on changes over time in the shape of income-mortality gradients for 4 Nordic countries during a period of rising income inequality. Context and time differentials in shape imply that the relationship between income and mortality is not ...
BACKGROUND The aim of this article was to investigate time trends 1972-2002 in leisure time, occupational and commuting physical activity across birth cohorts in Finnish adults. METHODS The study population comprised 59 028 men and women aged 25-64 years who participated in the FINRISK Study. The first birth cohort was born in 1913 and the last in 1977. Prevalence of physical activity was rep...
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