نتایج جستجو برای: system b
تعداد نتایج: 2986474 فیلتر نتایج به سال:
Background & Objectives: This study was conducted to evaluate the completeness and geographical representativeness of the hepatitis B surveillance system between 2007 and 2013 in Hamadan Province. Methods: In this descriptive study, all reported cases in Hamadan Province were extracted. The analytical literature review method was used to examine completeness. We used studies on the prevalenc...
background: chitin is an abundant natural polysaccharide found in fungi, algae, and exoskeleton of insects. several bacterial species are capable of utilizing chitin as their carbon source. these bacteria produce chitinases for degradation of chitin into n-acetyl-d-glucosamine. so far, regulation of the chitinase encoding genes has been studied in different bacterial species. among bacillus spe...
Background: Chitin is an abundant natural polysaccharide found in fungi, algae, and exoskeleton of insects. Several bacterial species are capable of utilizing chitin as their carbon source. These bacteria produce chitinases for degradation of chitin into N-acetyl-D-glucosamine. So far, regulation of the chitinase encoding genes has been studied in different bacterial species. Among Bacillus spe...
chronic hepatitis b is still a major public health issue despite the successful prophylactic vaccination attempts. chronicity of hepatitis b virus(hbv) is mainly due to its ability to debilitate host's immune system. therefore, major measures have been taken to stop this process and help patients with chronic hepatitis b infection recover from their illness. while satisfactory results have...
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