هدف انتخاب تأمین‌کنندگان و تخصیص سفارش بر اساس ابعاد پایداری ریسک پایداری، در شرایط عدم‌­قطعیت برخی پارامترها است؛ همچنین با محدودیت استراتژی کاهش برای مدیریت همراه است. معیارهای ریسک، امتیاز توسط روش‌های تاپسیس فازی تجزیه‌وتحلیل آثار شکست محاسبه شده است سپس برنامه تصادفی چندمرحله‌ای ایجاد معیار ارزش معرض شرطی، پیرامون تأمین منابع یک فضای چند­دوره‌ای برنامه‌‎ریزی دستیابی به برنامه‌ریزی انعطاف‌پ...

During the first 2 years of Geoffrey Harris’ tenure as Fitzmary Professor of Physiology, University of London (1952–1962), I was one of the four fellows in his laboratory based in the ‘Huts’, two prefabricated buildings on the grounds of Maudsley Hospital, South London. Peter Fawcett, a later collaborator, remarked, ‘It was an enigma to me why this eminent man should be stuck in a bunch of ex-a...

background: intertrochanteric fracture is one of the most common fractures of the hip especially in the elderly with osteoporotic bones, usually due to low-energy trauma like simple falls. dynamic hip screw (dhs) is still considered the gold standard for treating intertrochanteric fractures by many. not many studies compare the dhs with proximal femoral nail (pfn), in type ii intertrochanteric ...

One way to optimize social learning is to be selective when choosing from what sources to accept information. Preschoolers prefer to learn from previously accurate or competent sources, rather than from unreliable ones (e.g., Koenig, Clément, & Harris, 2004). The current study extends this work by comparing the ability to monitor an actor’s success in two species: children and chimpanzees. Memb...