نتایج جستجو برای: calculated pearson coefficients of correlation
تعداد نتایج: 21194816 فیلتر نتایج به سال:
. introduction not only have clouds and precipitation (snow, rain and hail) made up an important part of the subsystem atmospheric phenomena of terrestrial climate, but are also considered as the main components of the water cycle. aerosols play an important role in cloudiness and precipitation. in warm clouds with the same liquid water path, increase in aerosols concentration results in the re...
BACKGROUND & AIM To develop and evaluate a culture-specific nutrient intake assessment tool for use in adults with pulmonary tuberculosis (TB) in Tbilisi, Georgia. METHODS We developed an instrument to measure food intake over 3 consecutive days using a questionnaire format. The tool was then compared to 24 h food recalls. Food intake data from 31 subjects with TB were analyzed using the Nutr...
Background: The study was conducted to assess reliability of modified semi-quantitative food frequency questionnaire (SQFFQ) as a part of the Amirkola Health and Aging Project (AHAP). Methods: The study was carried out in a sample of 200 men and women aged 60 years and older. A 138-item SQFFQ and two 24-hour dietary recalls were completed. The reliability of SQFFQ was evaluated by comparing ei...
Seismic record of an earthquake contains important and significant data about characteristics of a ground motion. In this study, interdependencies between important seismic parameters and three overall structural damage indices including the Bracci index, the modified flexural damage ratio (MFDR) index and the drift index were determined for several records of earthquakes occurred in the Iran. ...
Google Flu Trends (http://www.google.org/flutrends/) (GFT) aggregates Google search data to estimate flu activity in 28 countries. This study explored the correlation of GFT with Japanese national sentinel surveillance data in 2009. We obtained GFT and national sentinel surveillance data for influenza in all 47 Japanese prefectures from 29 June– 31 Dec 2009. Pearson correlation coefficients wer...
Olfactory event-related potentials (OERP) have been used to investigate olfactory processing in health and disease. However, the reliability of the OERP has yet to be established statistically. The present study examined test-retest reliability of the OERP over a 4-week interval. EEG was recorded from Fz, Cz, and Pz, using a single-stimulus paradigm with amyl acetate. Reliabilities for ERP comp...
malnutrition and depression are highly prevalent in the elderly and can lead to unfavorable outcomes. the aims of the current study were to determine the association between malnutrition and depression and also to find any correlation of depression with some anthropometric indices in free living elderly.in this cross-sectional study, 337 elderly subjects (193 females) were selected using cluste...
The purpose of this study is determination of factor structure and psychometric features "negative self-picture scale" (NSPS). So, after preparation of mentioned scale and implementation of basic steps as well as omission of possible problems, NSPS was done on 574 Shahed University bachelor students, selected by cluster sampling and factor structure of this tool was surveyed by heuristic confir...
BACKGROUND Few studies have examined parent-child resemblance in body weight status using nationally representative data for the US. DESIGN We analyzed Body Mass Index (BMI), weight status, and related correlates for 4,846 boys, 4,725 girls, and their parents based on US nationally representative data from the 2006 and 2007 Medical Expenditure Panel Survey (MEPS). Pearson partial correlation ...
OBJECTIVE To assess the validity and reliability of the most recent adaptation of Block's full-diet food-frequency questionnaire (FFQ) among a sample of Canadian women. DESIGN Participants completed a self-administered FFQ (FFQ1), two unannounced 24-hour recalls (weekday and weekend) and a second FFQ (FFQ2) between October 2003 and February 2004. FFQs and recalls were analysed for 32 nutrient...
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