نتایج جستجو برای: calculated pearson coefficients of correlation

تعداد نتایج: 21194816  

The heart is one of the most important organs in the body, which is responsible for pumping blood into the valvular systems. Beside, heart valve disorders are one of the leading causes of death in the world. These disorders are complications in the heart valves that cause the valves to deform or damage, and as a result, the sounds caused by their opening and closing compared to a healthy heart....

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An AO is an example of teleconnection pattern in the northern hemisphere’s winter. In this study, the effect of AO on the monthly minimum temperatures in the North-East region of Iran is investigated. The required statistics, including statistics monthly minimum temperatures for 17 synoptic stations of the under study area was provided from Iran Meteorological Organization’s (IRMO). Pearson cor...

2003
WEI PAN KENNETH A. FRANK Wei Pan Kenneth A. Frank

Many methodological studies depend on the product of two dependent correlation coefficients. However, the behavior of the distribution of the product of two dependent correlation coefficients is not well known. The distribution of sets of correlation coefficients has been well studied, but not the distribution of the product of two dependent correlation coefficients. The present study derives a...

2012
Mahshid Dehghan Silvia del Cerro Xiaohe Zhang Jose Maini Cuneo Bruno Linetzky Rafael Diaz Anwar T. Merchant

BACKGROUND The Food Frequency Questionnaire (FFQ) is the most commonly used method for ranking individuals based on long term food intake in large epidemiological studies. The validation of an FFQ for specific populations is essential as food consumption is culture dependent. The aim of this study was to develop a Semi-quantitative Food Frequency Questionnaire (SFFQ) and evaluate its validity a...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Journal: :تحقیقات نظام سلامت 0
فاطمه رجعتی گروه بهداشت عمومی، دانشکده بهداشت، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران فیروزه مصطفوی گروه آموزش بهداشت و ارتقا سلامت، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران غلامرضا شریفی راد گروه آمارو اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران آوات فیضی گروه آمارو اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشک اصفهان، اصفهان، ایران معصومه صادقی دانشیار، مرکز تحقیقات بازتوانی قلبی، پژوهشکده قلب و عروق اصفهان، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مهنوش رئیسی دانشجوی دکترا، کمیته تحقیقات دانشجویی، گروه آموزش بهداشت و ارتقای سلامت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: heart failure is a severe chronic disease and has a negative impact on the health-related quality of life (hrql). in addition to preventing disease progress, one of the important goals in heart failure treatment is to improve the patient’s quality of life. this study is aimed to compare three generic to specific quality of life instruments that are used in cardiac rehabilitation set...

Journal: :journal of current ophthalmology 0
علی عبداللهی ali abdollahi محمدرضا پنجتن پناه mohammad reza panjtan panah حیدر امینی heydar amini قاسم فخرایی ghasem fakhraei رضا زارعی reza zarei محمد سلیمانی mohammad soleimani ساسان مقیمی

purpose : to compare the ability of scanning laser polarimetry (gdx vcc), and optical coherence tomography (oct) to discriminate eyes with primary open angle glaucoma (poag) from normal eyes and to assess the relationship between their parameters methods : eighty-seven glaucomatous eyes of 87 patients and 25 normal eyes were enrolled. the mean age of patients and normal group were 54.96±18.34 a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم تربیتی و روانشناسی 1393

the purpose of this study was to investigate the relationship between teachers’ class management practices with students’ self- regulated learning and academic self-efficacy. in this study relating to the management class, three dimensions, (training management, people management and behavior management) and three style (interventionist, interactionist and non-interventionist) was considered. r...

2013
Horng-Jeng Shyu Chia-Chi Lung Chien-Chang Ho Yi-Hua Iris Sun Pei-Chieh Ko Jing-Yang Huang Chia-Chen Pan Yi-Chen Chiang Shih-Chang Chen Yung-Po Liaw

BACKGROUND Many studies have examined the risk factors for HCC (including hepatitis B virus, hepatitis C virus, aflatoxin, retinol, cigarette smoking, and alcohol consumption). However, data from previous studies on the association between iron exposure, land subsidence, and HCC mortality/incidence were limited, especially in Taiwanese population. We aimed to explore the geographical distributi...

2017
Kwon-Hee Park Hee-Won Lee Kee-Boem Park Jin-Youn Lee Ah-Ra Cho Hyun-Mi Oh Joo Hyun Park

OBJECTIVE To develop the Korean version of the Cognitive Assessment Scale for Stroke Patients (K-CASP) and to evaluate the test reliability and validity of the K-CASP in stroke patients. METHODS The original CASP was translated into Korean, back-translated into English, then reviewed and compared with the original version. Thirty-three stroke patients were assessed independently by two examin...

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