منابع مشابه
When Hymenopteran Males Reinvented Diploidy
In most plants and animals, a consistent relationship exists between the DNA content of a cell and its metabolic activity. The male-haploid sex determination of Hymenoptera and other arthropods may therefore impose a particular selective pressure upon males, which must evolve adaptations to cope with a genomic DNA reduced by half compared with that of females. Here, we show that a nuclear DNA c...
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The recent joint statement by the European Society of Cardiology (ESC) and the American College of Cardiology (ACC) proposing a “redefinition” of myocardial infarction has aroused much interest but also sparked considerable controversy. The basis of the new definition is the promotion of troponins to a pivotal role in the diagnosis of acute myocardial infarction, coupled with the relegation of ...
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THE EVIDENCE FOR NEWLY DISCOVERED ROLES FOR VITAMIN D An important clue to roles of vitamin D beyond calcium homeostasis came with the finding that the 1,25dihydroxyvitamin D nuclear receptor is present in most tissues. A reevaluation of the physiological and pharmacological actions of vitamin D produced evidence that vitamin D can regulate the immune system and thereby is implicated in several...
متن کاملReliability analysis of tube hydroforming process
In this paper, we propose a reliability–mechanical study combination to treat the tube hydroforming process (THP). This process consists to apply an inner pressure combined to an axial displacement to manufacture the part. Our goal is the computation of the failure probability of the hydroforming process. Normally, this process is particularly complex and have to be solved numerically. There ar...
متن کاملSimulative Analysis of Tube Hydroforming Process
The tube hydro forming process (THF) is an unconventional metal forming process, where in tube is deformed internally and thus it is forced to expand and conform to the shape of the surrounding die. The performance of this process depends on various parameters like internal pressure, axial loading etc. For FEA simulation, it requires proper combination of material selection, part design and bou...
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ژورنال
عنوان ژورنال: MATEC Web of Conferences
سال: 2015
ISSN: 2261-236X
DOI: 10.1051/matecconf/20152106006