منابع مشابه
conditional copula-garch methods for value at risk of portfolio: the case of tehran stock exchange market
ارزش در معرض ریسک یکی از مهمترین معیارهای اندازه گیری ریسک در بنگاه های اقتصادی می باشد. برآورد دقیق ارزش در معرض ریسک موضوع بسیارمهمی می باشد و انحراف از آن می تواند موجب ورشکستگی و یا عدم تخصیص بهینه منابع یک بنگاه گردد. هدف اصلی این مطالعه بررسی کارایی روش copula-garch شرطی در برآورد ارزش در معرض ریسک پرتفویی متشکل از دو سهام می باشد و ارزش در معرض ریسک بدست آمده با روشهای سنتی برآورد ارزش د...
Investigating the diagnostic value of tumor markers compared to ultrasound in the diagnosis of ovarian tumors
Aims: Ovarian cancer has the worst prognosis among female genital tract malignancies, but if detected in the early stages, it is one of the most treatable malignancies. The aim of this study was to investigate the diagnostic value of tumor markers compared to ultrasound in the diagnosis of ovarian tumors. Materials and methods: In this cross-sectional-analytical study, 210 women referred to ...
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Objective(s)Distinction of hydatidiform moles from non-molar specimens and subclassification of hydatidiform moles as complete and partial are important for clinical practice, but diagnosis based solely on histomorphology suffers from poor interobserver reproducibility. Nowadays, pathologists rely on molecular techniques, however these methods are technically difficult, relatively expensive, an...
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Objective: This study aimed to compare the diagnostic value of 4 questionnaires for the diagnosis of neurocognitive disorders (NCDs) in the elderly. Methodology: In this project, people older than 60 years who lived in Tehran were investigated. A total of 99 literate persons were enrolled in the study, and 4 questionnaires of functional assessment staging tool (FAST), abbreviated mental test s...
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Introduction: The liver fibrosis is caused by extracellular accumulation of cluster, glycos amino glycans and proteoglycans, which this extracellular accumulation may limit the penetration and molecular movement of water in the tissue, so the Diffusion weighted imaging(DWI) technique is due to the sensitivity to the movement and release of water molecules Can show this restrict...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1939
ISSN: 0035-9157
DOI: 10.1177/003591573903201010