نتایج جستجو برای: usually less than 1000 hecto
تعداد نتایج: 2340198 فیلتر نتایج به سال:
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
In a 4-year period the neonatal survival rate for 26 infants weighing 501-750 g was 42% and for 81 infants weighing 751-1000 g it was 61%. All 59 surviving infants have been assessed at follow-up; 39 were at least 2 years old (corrected for prematurity) and data from the remaining 20 were derived from assessment at 1 year corrected age. Five children had cerebral palsy, 4 had multiple handicaps...
employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...
OBJECTIVE To examine the neurosensory and cognitive status of extremely low-birth-weight (ELBW; < 1,000 g) children born from January 1, 1992, through December 31, 1995, and to identify the significant predictors of outcome. DESIGN An inception cohort of ELBW infants admitted to the neonatal intensive care unit (NICU) and observed to 20 months' corrected age. SETTING A tertiary level urban ...
The Millennium Development Goals (MDGs) 4 and 5 called for reducing the mortality of under-5-year-olds by two-thirds between 1990 and 2015, and reducing maternal mortality by three-quarters over the same period. Substantial progress towards this has been made worldwide. The global maternal mortality ratio fell by 47% between 1990 and 2010 and the under-5 mortality rate also fell by 47% between ...
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