Over the years since their meager beginnings, agribusiness cooperatives in the U.S. have compiled a checkered history of both praise and condemnation. Some observers have argued that cooperatives no longer communicate with, nor represent the best interests of their farmer members. Some critics suggest that cooperatives have stymied, or at least diffused, free market transactions in the agricult...

MANY departments of government in present-day Africa are the outcome of developments which reach back well into pre-independence times. In Malawi the development of the Ministry of Health can be traced to the very beginning of colonial rule, and as a distinct functional unit of central government it is almost as old as the Government itself. It is the purpose of this article to trace this devel...

It is now connected with the coast town of Mombassa by a line of railway through British territory. The Uganda Protectorate lies round the Northern Lake. Until recent years Uganda was practically closed to trade, but with the opening up ('antral Africa it ceased to be so. In this connection Sir Ray Lankester writes + : " The Sleeping Sickness of tropical Africa furnishes an example of one of th...

Hardy was surprised by Ramanujan’s remark about a London taxi numbered 1729: “it is a very interesting number, it is the smallest number expressible as a sum of two cubes in two different ways”. In memory of this story, this number is now called Taxicab(2) = 1729 = 9 + 10 = 1 + 12, Taxicab(n) being the smallest number expressible in n ways as a sum of two cubes. We can generalize the problem by...

طیف گامای آنی تولید شده حین تابش پروتون به بافت، برای آنالیز عنصری بافت تحت درمان کار گرفته می‌­شود. هدف اصلی این در پروتون­درمانی ردیابی غلظت اکسیژن تومور است. پایش برخط تغییر عنصر پزشک را سمت ارزیابی روند بهبود و تخمین پاسخ بدن بیمار هدایت می‌­کند. مطالعه گاما یک فانتوم چشم انسان آشکارساز HPGe با استفاده از ابزار Geant4 شبیه‌سازی ­کارگیری شبکه عصبی انجام شد. 33 نمونه حاوی تومورهای متفاوت نظر ...