نتایج جستجو برای: بادبند ebf

تعداد نتایج: 881  

Journal: :The Journal of Experimental Medicine 2006
Heather L. Van Epps

Bone marrow cavities fill up with fat in mice lacking the transcription factor EBF-1 (early B cell factor-1), according to data The evolutionarily conserved EBF transcription factors (EBF-1–4) are required for the development of olfactory neurons and B cells. EBF-1 also promotes fat cell (adipocyte) differentiation when overexpressed in preadipocyte cell lines, but the mecha-nism—and in vivo si...

با توجه به نیاز روزافزون مقاوم‌سازی ساختمان‌ها، روش‌های مختلفی برای مقاوم‌سازی ساختمان‌هایی که با قاب خمشی ساخته شده‌اند و در برابر زلزله مقاومت کافی ندارند، ارائه شده است. یکی از این روش‌ها استفاده از بادبندهای هم‌مرکز است که به‌لحاظ اقتصادی نیز مقرون‌به‌صرفه است. اما بادبندهای هم‌مرکز از شکل‌پذیری کمی برخوردارند و هنگام به‌کارگیری آنها برای مقاوم‌سازی در قاب‌های خمشی، علاوه بر لزوم مقاوم‌سا...

اضافه‌کردن مهاربند به قاب، سختی قاب را افزایش و نیز تغییرمکان‌های جانبی در اثر نیروهای عرضی را کاهش داده، همچنین شکل‌پذیری را نسبت به قاب خمشی کاهش می‌دهد. در این پژوهش، نوعی مهاربند کابلی جدید پیشنهاد می‌شود. چندین قاب خمشی، قاب خمشی با بادبند کابلی X شکل و با بادبند پیشنهادی با هم مقایسه شدند و نتایج نشان دادند که رفتار قاب با مهاربند پیشنهادی، حالتی مابین قاب خمشی و قاب خمشی با بادبند کابلی ...

2014
John O Okanda Craig B Borkowf Sonali Girde Timothy K Thomas Shirley Lee Lecher

BACKGROUND One of the most effective ways to promote the prevention of mother-to-child transmission (PMTCT) of HIV-1 in resource-limited settings is to encourage HIV-positive mothers to practice exclusive breastfeeding (EBF) for the first 6 months post-partum while they receive antiretroviral therapy (ARV). Although EBF reduces mortality in this context, its practice has been low. We studied th...

2014
Stanley Onah Donatus Ignatius Chidiebere Osuorah Joy Ebenebe Clement Ezechukwu Uchenna Ekwochi Ifeyinwa Ndukwu

BACKGROUND Malnutrition is an underlying factor in more than 50% of the major cause of infant mortality-Pneumonia, diarrhoeal disease and measles which account for 70% of infant mortality. Therefore, programs to promote adequate nutrition for age can help reduce mortality from these disease conditions and indispensible to achievement of MDG 4. AIM To describe the feeding practices of infants ...

2017
Qing-ni Song Hui Lu Jun Liu Jun Yang Guang-yao Yang Qing-pei Yang

Bamboo (Phyllostachys pubescens) expansion into adjacent forests is a widespread phenomenon in subtropical regions, and it has greatly changed the dominance hierarchy from trees to bamboos. This process may be accompanied by changes in productivity, nutrients accumulation and biogeochemical cycles. We compared the net primary production (NPP) and major pools and fluxes of nitrogen (N) in bamboo...

Journal: :BMC Infectious Diseases 2008
Julius Atashili Linda Kalilani Vidyunmala Seksaria Emily E Sickbert-Bennett

BACKGROUND Although breast-feeding accounts for 15-20% of mother-to-child transmission (MTCT) of HIV, it is not prohibited in some developing countries because of the higher mortality associated with not breast-feeding. We assessed the potential impact, on HIV infection and infant mortality, of a recommendation for shorter durations of exclusive breast-feeding (EBF) and poor compliance to these...

2014
Tatiana O Vieira Graciete O Vieira Nelson F de Oliveira Carlos M C Mendes Elsa Regina J Giugliani Luciana R Silva

BACKGROUND Determinants of the duration of exclusive breastfeeding (EBF) differ in effect and magnitude across populations. The present study aimed to identify factors associated with discontinuation of EBF in a municipality in northeastern Brazil, including variables that have received little or no attention in previous literature. METHODS This cohort study involved 1,344 mother-child pairs ...

2017
Wilasinee Bootsri Surasak Taneepanichskul

BACKGROUND Grandmothers are important to successful breastfeeding because their knowledge, attitudes and experiences influence adolescent mothers' decision to initiate and to continue breastfeeding. The purpose of this study was to assess the effectiveness of an experiential learning with empowerment strategies and social support (ELESSS) programme for grandmothers according to improvements in ...

2018
Felix Akpojene Ogbo Andrew Page John Idoko Kingsley E. Agho

BACKGROUND Non-exclusive breastfeeding (non-EBF) is a risk factor for many of the 2300 under-five deaths occurring daily in Nigeria - a developing country with approximately 40 million children. This study aimed to quantify and compare the attributable burden of key modifiable risk factors associated with non-EBF in Nigeria to inform strategic policy responses and initiatives. METHODS Relativ...

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