نتایج جستجو برای: بادبند ebf
تعداد نتایج: 881 فیلتر نتایج به سال:
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 ...
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...
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 ...
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...
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...
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 ...
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 ...
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...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید