نتایج جستجو برای: in most developing countries
تعداد نتایج: 17052120 فیلتر نتایج به سال:
cryptosporidium species are one of the most common causes of gastrointestinal infection in humans around the world. this study has aimed to investigate the hyper variable region of the 18s rrna gene in cryptosporidium for exact parasite identification . dna was extracted from 26 fecal samples from which initially cryptosporidium oocysts were identified by ziehl-neelsen acid-fast , auramine phen...
context distributing health care services in remote and rural areas have become a major health problem for many developing countries. telemedicine presents solutions to developing countries for better disease prevention, disease management, emergency services and practicing medicine in areas with limited access to healthcare services and facilities. although the willingness of developing countr...
drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...
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