نتایج جستجو برای: آزمون GRS
تعداد نتایج: 121868 فیلتر نتایج به سال:
یکی از پرکاربردترین روش‌های سنجش اعتبار تجربی مدلهای قیمتگذاری دارایی، استفاده از آزمون موسوم به GRS است. این مقاله درصدد است تا ضمن انجام این آزمون برای دو مدل مشهور قیمتگذاری دارایی (مدل قیمتگذاری دارایی سرمایهای و مدل سه عاملی فاما و فرنچ) در بازار سهام ایران برای نخستین بار، ملاحظات مربوط به توان آزمون و سطح بهینه معنیداری را نیز لحاظ نماید. بر این اساس با استفاده از دادههای بازدهی ...
پژوهش حاضر به دنبال بررسی تأثیر ریسک نکول بر توان توضیحی مدل 5 عاملی فاما و فرنچ در بورس اوراق بهادار تهران طی سالهای 1396-1388 است. در این راستا در این پژوهش از رگرسیونهای سری زمانی و آزمون GRS استفاده شده است. به منظور دستیابی به هدف پژوهش، نتایج مدل 5 عاملی فاما و فرنچ با مدل 6 عاملی شامل ریسک نکول، با استفاده از آزمون GRS مقایسه میشوند. علاوه بر این به منظور بررسی تأثیر ریسک نکول بر بازد...
THE 1997 IEEE Geoscience and Remote Sensing Society’s Awards were presented by the IEEE President Charles Alexander, GRS-Society President Martti Hallikainen, and GRS-Society Vice-President Nahid Khazenie on August 5, 1997, at the Awards Luncheon during IGARSS’97 in Singapore. The call for nomination for the GRS-S Distinguished Achievement Award is published in the GRS-S Newsletter. Nominations...
Introduction: Although variants in the FTO gene have been found to be associated with susceptibility to obesity, however, recent studies suggest that dietary intakes may modify the association. This study aimed to investigate the interaction of the Mediterranean dietary pattern (MD) and fiber intake with FTO gene polymorphisms in relation to obesity phenotypes. Materials and Methods: Participan...
PURPOSE To investigate the genetic risk score (GRS) from a large-scale exome-wide association study as a tool of prediction for biochemical recurrence (BCR) after radical prostatectomy (RP) in prostate cancer (PCa). RESULTS The 16 SNPs were selected as significant predictors of BCR. The GRS in men experiencing BCR was -1.21, significantly higher than in non-BCR patients (-2.43) (p < 0.001). T...
This paper considers group reconstruction systems (GRS’s), for finite dimensional real or complex Hilbert spaces H, that are associated with unitary representations of finite abelian groups. The relation between these GRS’s and the generalized Fourier matrix is established. A special type of Parseval GRS, called harmonic reconstruction system (HRS), is defined. It is shown that there exist HRS’...
Glutinous rice flour (GRF) and glutinous rice starch (GRS) were modified by dry-heat treatment and their rheological, thermal properties and freeze-thaw stability were evaluated. Compared with the native GRF and GRS, the water-holding ability of modified GRF and GRS were enhanced. Both the onset and peak temperatures of the modified samples increased while the endothermic enthalpy change decrea...
The bronchomotor effects of a deep inhalation (DI) may provide relevant information about the mechanisms of exercise-induced airway obstruction in children and may be assessed by respiratory conductance (Grs) measured using the forced oscillation technique. The aims of the present study were to assess the effect of DI on Grs after exercise in relationship to the lung function response to exerci...
BACKGROUND Multiple single-nucleotide polymorphisms have been associated with low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglyceride (TG) levels. In this paper, we evaluate a weighted and an unweighted approach for estimating the combined effect of multiple markers (using genotypes and haplotypes) on lipid levels for a given individual. MET...
OBJECTIVES To confirm the association of previously discovered psoriasis (Ps) risk loci with the disease in a Polish population and to create predictive models based on the combination of these single nucleotide polymorphisms (SNPs). MATERIAL AND METHODS Thirty-eight SNPs were genotyped in 480 Ps patients and 490 controls. Alleles distributions were compared between patients and controls, as ...
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