نتایج جستجو برای: 462
تعداد نتایج: 2660 فیلتر نتایج به سال:
گاو سیستانی نژاد گوشتی و از ذخایر ژنتیکی باارزش کشور است که از لحاظ تولید گوشت، کمیت و کیفیت لاشه و بازده غذایی مناسب است. در پژوهش حاضر به منظور بررسی چندشکلی ژن TFAM (Mitochondrial transcription factor A) با استفاده از PCR-RFLP، از 150 رأس گاو سیستانی به صورت تصادفی و انفرادی خونگیری از ورید گردنی انجام گرفت. سپس نمونههای خون دامها با روش شستشوی نمکی بهی...
Introduction: The purpose of this study was to investigate the mediating role of mental adjustment in the relationship between cognitive processing with post-traumatic stress symptoms and fear of recurrence in patients with cancer. Method: This is a cross-sectional study with a convenience sampling method. A total of 200 women and man with one of the types of cancer (breast, blood and gastroint...
BACKGROUND Latent autoimmune diabetes in adults (LADA) refers to a specific type of diabetes characterized by adult onset, presence of islet auto-antibodies, insulin independence at the time of diagnosis, and rapid decline in β-cell function. The prevalence of LADA among patients with type 2 diabetes varies from 2% to 20% according to the study population. Since most studies on the prevalence o...
OBJECTIVE As cluster headache (CH) is often referred to as "suicide headache," we wanted to assess the prevalence of depression in CH patients, and to investigate determinants of depression such as sleep disturbances. METHODS In a cross-sectional, web-based, validated questionnaire study among 462 well-defined CH patients and 177 controls, we diagnosed CH according to the ICHD-III. We assesse...
Several studies, using pH monitoring with event markers, have identified patients with normal oesophageal exposure to acid despite an apparent relation between symptoms and reflux episodes. In this series of 771 consecutive patients referred for 24 hour oesophageal pH monitoring, a probability calculation was used to evaluate the relation between symptoms and reflux episodes. Oesophageal exposu...
How domestication bottlenecks and artificial selection shaped the amount and distribution of genetic variation in the genomes of modern crops is poorly understood. We analyzed diversity at 462 simple sequence repeats (SSRs) or microsatellites spread throughout the maize genome and compared the diversity observed at these SSRs in maize to that observed in its wild progenitor, teosinte. The resul...
In α-proteobacteria, strict regulation of cell cycle progression is necessary for the specific cellular differentiation required for adaptation to diverse environmental niches. The symbiotic lifestyle of Sinorhizobium meliloti requires a drastic cellular differentiation that includes genome amplification. To achieve polyploidy, the S. meliloti cell cycle program must be altered to uncouple DNA ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید