منابع مشابه
Hand (and orthopaedic) surgery in primitive war conditions
Old Chinese and Egyptian physicians used some chemical methods for the treatment of wounds and injuries. Although the beneficial effect of passing surgical instruments through flame was well known to ancient civilizations, the heat as a preservative method in medical industry, was first introduced in 1809 in France. Joseph Lister (1827–1912) believed that it was microbes carried in the air that...
متن کاملConditions for the Existence of Generalized Fibonacci Primitive Roots
Consider sequences of integers {Un}TM=0 defined by U„ = aUn_x +bUn_2 for all integers n > 2, where U0 = 0, C/j = 1, a and b are given integers. We call these sequences generalized Fibonacci sequences with parameters a and b. In the case where a = b = 1, the sequence {Un}TM=0 is called the Fibonacci sequence, and we denote its terms by F0,Fl9.... The polynomial f(x) = x-ax-h with discriminant D ...
متن کاملA production of amino acids under possible primitive earth conditions.
Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/page/info/about/policies/terms.jsp. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive o...
متن کاملSandblasting under uncontrolled and primitive conditions in Turkey.
Abrasive blasting involves forcefully projecting a stream of abrasive particles onto a surface, usually with compressed air or steam. Since silica sand is commonly used in this process, workers who perform abrasive blasting are often called sandblasters. A material with rough particles should be used in order to have a sufficient effect on resistant surfaces such as glass or metal. Mostly quart...
متن کاملPrimitive Ideal Space of Ultragraph $C^*$-algebras
In this paper, we describe the primitive ideal space of the $C^*$-algebra $C^*(mathcal G)$ associated to the ultragraph $mathcal{G}$. We investigate the structure of the closed ideals of the quotient ultragraph $ C^* $-algebra $C^*left(mathcal G/(H,S)right)$ which contain no nonzero set projections and then we characterize all non gauge-invariant primitive ideals. Our results generalize the ...
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ژورنال
عنوان ژورنال: The Course of Study
سال: 1901
ISSN: 1545-5890
DOI: 10.1086/452861