نتایج جستجو برای: frequencies of occurrence
تعداد نتایج: 21169344 فیلتر نتایج به سال:
Frequency of homologous synapsis at pachytene for a relatively short heterozygous inversion was compared to the frequency of crossover occurrence within the inversion and to the frequency of the presence of a recombination nodule within the homologously synapsed inverted region. Crossover frequencies were estimated from bridge-fragment frequencies at anaphase I and anaphase II. Recombination no...
nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...
although genetic variants that affect susceptibility to coronary artery disease (cad) have been greatly known, a number of these single nucleotide polymorphisms (snps) remain to be analyzed in populations with different ethnicities. cad is influenced by numerous genetic, environmental, and lifestyle factors, and is an important reason for mortality around the globe. in this study, a novel snp (...
Background and purpose: Retinitis Pigmentosa (RP) is one of the retinal degeneration diseases affecting the eye signals. Electroretinogram (ERG) is a signal that plays an important role in diagnosis and treatment of RP. This signal includes useful information that cannot be revealed just in time domain. We aimed to investigate the effect of RP on time, frequency, and time-frequency parameters o...
In this paper we present a method for detecting the text genre quickly and easily following an approach originally proposed in authorship attribution studies which uses as style markers the frequencies of occurrence of the most frequent words in a training corpus (Burrows, 1992). In contrast to this approach we use the frequencies of occurrence of the most frequent words of the entire written l...
Abstract Background and Objectives Immune platelet refractoriness is a complication of blood transfusion in patients with multiple platelet transfusions. Antibodies against surface antigens, including human platelet antigens (HPAs) and human leukocyte antigens (HLAs), can be produced which can cause the degradation of transfused platelets by macrophages. In this study, the frequency of platele...
In this work the procedure to the synthesis of Ba2GdSbO6 complex perovskite by the solid-state reaction method is reported. Theoretically a study of the crystalline and electronic structure was performed into the framework of the Density Functional Theory (DFT). The most stable structure is obtained to be a rhombohedral perovskite with a lattice constant a=6,0840 Å. Due the occurren...
Abstract Background: NOD2 gene located on chromosome 16 (IBD1) is known to have a strong association with Crohn’s disease. Three common polymorphisms of this gene including R702W, G908R, 1007fsinsC, were reported to be frequent in many western populations while rare occurrence of them was observed in eastern countries. The aim of this study was to assess the frequency of these polymorphisms ...
In this paper we study a variation of the signature Ale access method for text and attribute retrieval. According to this method, the documents (or records) are stored sequentially in the “text flle”. Abstractions (“signatures”) of the documents (or records) are stored in the “signature Ale”. The latter serves as a Alter on retrieval: It helps discarding a large number of non-qualifying documen...
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