منابع مشابه
Lost and Found: The Secret Sex Lives of Bdelloid Rotifers.
FIFTEEN years ago, Mark Welch and Meselson published a landmark paper that threw down a gauntlet to evolutionary biologists. They presented the first compelling molecular evidence that a large group of animals called bdelloid rotifers had been evolving for many millions of years without sex (Mark Welch and Meselson 2000). Their findings challenged the importance of sexual reproduction for long-...
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One of the longstanding complaints against the death penalty is that it “distort[s] the course of the criminal law.” Capital prosecutions are expensive and complicated; they draw sensational attention from the press; they are litigated—before, during, and after trial—at greater length and depth than other felonies; they generate more intense emotions, for and against; they last longer and live ...
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Leprosy causes nerve damage which leads to repeated injuries or ulcers causing the loss or absorption of digits. The loss of digits is also common in traumatic injuries. Irrespective of the etiology, the loss of a finger has a considerable negative functional and psychological impact on an individual. In order to solve these problems, prostheses are provided to patients. This short report demon...
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This paper presents a novel solution method for joint energy and Spinning Reserve (SR) dispatch problem. In systems in which the Lost Opportunity Cost (LOC) should be paid to generators, if the LOC is not considered in the dispatch problem, the results may differ from the truly optimum solution. Since the LOC is a non-differentiable function, including it in the formulation makes the problem so...
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Multi-echelon inventory systems are one of the most important and attractive areas in modelling supply chain management so that several researches and studies have been done about. In this paper, the total cost function of a two-echelon inventory system with central warehouse and many identical retailers controlled by continuous review inventory policy is estimated. We have assumed the demand i...
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ژورنال
عنوان ژورنال: Nature
سال: 2003
ISSN: 0028-0836,1476-4687
DOI: 10.1038/421587a