نتایج جستجو برای: availability during the whole year
تعداد نتایج: 16351193 فیلتر نتایج به سال:
Background: Lice are the human permenant external parasites which causing irritation,pruritus, fatigue,malaise, poor health and learning disfunction.The aim of this study was to examine the prevalence of head lice infestation in urban female students of Rabat Karim primary schools during the years 2008-2009. Method: In an observational and multistage cluster sampling design, 10000 female st...
شیوع مصرف انواع مشتقات مختلف خون در نوزادان بستری در بیمارستان شهید بهشتی کاشان در سالهای 1380-1379
The Prevalence of Different Blood Derivatives Consumption in Neonates Admitted to Kashan Shahid Beheshti Hospital (2000-2001) Considering the significance of blood component therapy in neonates and the potential risks of transfusion in this patient group and due to having little information about the types of blood component used in neonatal unit, this descriptive study was carried out at B...
BACKGROUND The Synar Amendment requires states and territories to enact a law prohibiting the sale of tobacco to minors and to enforce that law in a manner that could reasonably be expected to decrease the availability of tobacco to minors. OBJECTIVE To determine if the Department of Health and Human Services (DHHS) and applicant states and territories are complying with the Synar Amendment. ...
Potassium (K) fixation in soil is an important process which affects the availability of K to plants. There is limited information on K fixation capacity (PFC) of soils in Chahar Mahal & Bakhtiary province. This study was carried out with the aim of determining PFC and its relation with soil characteristics in 10 samples of surface soils in Chahar Mahal & Bakhtiary province. PFC was determined ...
ندارد
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
normal 0 false false false en-us x-none ar-sa background: headache is one of the most common complaints during medical curriculum and it occurs due to numerous psychological and physical stressors, which are more common in medical students than general population . the purpose of this study was to evaluate the frequency of different types of headache and associated factors. materials and method...
Background Valvular heart disease is a steadily increasing socioeconomic burden worldwide. The proportion of valvular surgeries has increased over the past decades and these procedures now account for more than 20% of all cardiac surgeries with the number of replacement per year expected to triple by 2050 [1]. Tissue engineering (TE) of heart valves might overcome the well-known complications o...
lehmannia valentiana is one of the most important pests of ornamental plants, vegetables and other agricultural crops, which causes noticable damages. in a food experiment four kinds of food for 24 and 72 hours were offered. the preferences of food were amaranthus tricolor, cineraria grandiflora, pelargonium peltatum, rosa damascena and l. valentiana. the l. valentiaiia is active the whole year...
BACKGROUND The number of physicians available in a given country, their efficiency, quality and specialization is of utmost epidemiological importance. AIM To evaluate the availability of physicians in Chile. MATERIAL AND METHODS The information about the number of physicians in Chile up to the year 2004, was obtained from the Ministry of Health, national universities and the register of im...
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