نتایج جستجو برای: 2039 cent 3
تعداد نتایج: 1830409 فیلتر نتایج به سال:
تغییر اقلیم باعث تغییراتی در الگوهای بارش و دما و مقدار آنها میشود و این تغییرات میتواند عملکرد گیاهان راتحتتاثیرقراردهد. در این پژوهش با استفاده از مدل aquacropبه شبیهسازی مقدار عملکرد دانه و زیست توده گیاه سویا تحت اقلیم آینده، در تیمارهای مختلف آبیاری و تاریخهای کشت مختلف بهعنوان یک راهکار سازگاری، پرداخته شد. به این منظور، از دادههای تولیدی بارش، دمای کمینه، دمای بیشینه و ساعت آفتابی...
The aim of the study was to establish the prevalence of dental features that indicate a need for early orthodontic treatment (EOT). A group of schoolchildren in the mixed dentition stage (7-11 years old) (n = 432) was clinically screened for indications for EOT. Over 1/3 of the youngsters (34.7 per cent) presented at least one of the indications for EOT: anterior and posterior crossbites (inclu...
In a 12-month prospective study incorporating four neighbouring district general hospitals, 228 patients required a total of 236 admissions with intestinal obstruction. The aetiological factors included adhesions 75 (32 per cent), malignant disease 61 (26 per cent), strangulated hernias 59 (25 per cent), volvulus 10 (4 per cent), acquired megacolon 6 (3 per cent), pseudo-obstruction 4 (2 per ce...
A total of 1429 Saudi children of either sex and under 5 years of age who were admitted to King Khalid University Hospital, Riyadh during a three year period (April 1993-March 1996) with complaints suggestive of acute respiratory tract infections (ARTI) were investigated for viral aetiology of the infection. Viruses could be detected in 522 (37 per cent) cases with respiratory syncytial virus (...
HIV-1 specific IgA antibody testing using commercially available reagents was evaluated at birth to 15 months in a group of infants born to HIV-seropositive South African women. Following IgG depletion of serum samples, 33/35 (94 per cent) of the infected infants and 3/99 (3 per cent) of the uninfected infants showed positive IgA reactivity. Sensitivity at birth was 24 per cent and improved wit...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید