نتایج جستجو برای: validation study

تعداد نتایج: 4087172  

Journal: :research in pharmaceutical sciences 0
m shahlaei a fassihi l saghaie e arkan a pourhossein

quantitative relationships between molecular structure of forty eight aldehyde compounds with their known cathepsin k inhibitory effects were discovered by partial least squares (pls) method. evaluation of a test set of 10 compounds with the developed pls model revealed that this model is reliable with a good predictability. since the qsar study was performed on the basis of theoretical descrip...

Journal: :iranian journal of neurology 0
hosein shamshiri resident, department of neurology, shariati hospital, tehran university of medical sciences, tehran, iran. mohammad reza eshraghian professor, department of statistics and epidemiology, school of health, tehran university of medical sciences, tehran, iran nastaran ameli department of biostatistics and epidemiology, tehran university of medical sciences, tehran, iran shahriar nafissi associate professor, department of neurology, shariati hospital, tehran university of medical sciences, tehran, iran

background: as a disease of motor nervous system (motor neuron  disease), amyotrophic  lateral  sclerosis (als)  has  a great  impact  on  several  aspects  of  quality  of  life (qol). generic questionnaires of qol do not address all the especial features  of als and  therefore  translation  and  validation of disease specific questionnaires such as amyotrophic lateral sclerosis assessment  qu...

Journal: :مهندسی زراعی 0
نسرین زلکی بدیلی دانش آموخته کارشناسی ارشد خاکشناسی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز غلامعباس صیاد استادیار گروه خاکشناسی، دانشکده کشاورزی، دانشگاه دانشگاه شهید چمران اهواز کاظم حمادی عضو هیئت علمی سازمان آب و برق استان خوزستان سمیرا اخوان استادیار گروه علوم آب، دانشکده کشاورزی، دانشگاه بوعلی سینا همدان علی عبدی کارشناس ارشد خاکشناسی، گروه خاکشناسی، دانشکده مهندسی کشاورزی، دانشگاه رازی کرمانشاه

in iran, most mountainous watersheds do not have enough hydrometery stations and defective stations have sparse data. because of limited availability of hydrologic data, watershed modeling plays a crucial role in development of local resources. in this study, swat was applied to simulate runoff in marun dam (idanak) watershed, a sub-basin of marun catchment. calibration and sensivity analyses w...

Journal: :iranian chemical communication 0
mehdi nekoei department of chemistry, shahrood branch, islamic azad university, shahrood, iran

in this paper, the quantitative structure activity-relationship (qsar) of the ccr2b receptor inhibitors was scrutinized. firstly, the molecular descriptors were calculated using the dragon package. then, the stepwise multiple linear regressions (sw-mlr) and the genetic algorithm multiple linear regressions (ga-mlr) variable selection methods were subsequently employed to select and implement th...

Journal: :international journal of automotive engineering 0
esfahanian mahmoodian amiri masih tehrani nehzati hejabi

in the present study, a model of a large lithium polymer (li-po) battery for use in the simulation of hybrid electric vehicles (hevs) is developed. to attain this goal, an equivalent circuit (ec) consisting of a series resistor and two rc parallel networks is considered. the accuracy and the response time of the model for use in an hev simulator are studied. the battery parameters identificatio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...

Journal: :international journal of environmental research 2011
w.j.s. mwegoha

a mathematical model was developed to predict the effects of wind speed, light, ph, temperature, dissolved carbon dioxide and chemical oxygen demand (cod) on dissolved oxygen (do) in fish ponds. the effects of organic feeds, aeration and fish activity were added to the model developed by kayombo et al. for waste stabilization ponds (ecological modeling 127(2000): 21-31) to reflect the situat...

Journal: :the international journal of humanities 2014
mohammad ali khatami firouzabadi

mathematical models have the potential to provide a cost-effective, objective, and flexible approach to assessing management decisions, particularly when these decisions are strategic alternatives. in some instances, mathematical model is the only means available for evaluating and testing alternatives.  however, in order for this potential to be realized, models must be valid for the applicati...

Journal: :iranian red crescent medical journal 0
mahnoush reisi department of health education and health promotion, school of health, isfahan university of medical sciences, isfahan, ir iran firoozeh mostafavi department of health education and health promotion, school of health, isfahan university of medical sciences, isfahan, ir iran homamodin javadzede department of health education and health promotion, school of health, bushehr university of medical sciences, bushehr, ir iran behzad mahaki department of bio-statistics and epidemiology, school of health, isfahan university of medical sciences, isfahan, ir iran gholamreza sharifirad department of public health, school of health, qom university of medical sciences, qom, ir iran; department of public health, school of health, qom university of medical sciences, qom, ir iran. tel: +98-9131290174 elahe tavassoli department of public health, school of health, shahrekord university of medical sciences, shahrekord, ir iran

conclusions we concluded that the fcchl scales are valid and reliable, and can be used to measure health literacy among iranian diabetic patients. however, further research is needed to establish stronger psychometric properties for the use of this questionnaire in iran. results exploratory factor analysis (efa) identified three main factors with 27.07%, 22.46%, and 16.23% of extracted variance...

Journal: :iranian red crescent medical journal 0
forough mortazavi department of midwifery, faculty of nursing and midwifery, sabzevar university of medical sciences, sabzevar, ir iran seyed abbas mousavi research center of psychiatry, golestan university of medical sciences, gorgan, ir iran; research center of psychiatry, golestan university of medical sciences, gorgan, ir iran. tel: +98-2332395003, fax: +98-2332395006 reza chaman department of community medicine, school of medicine, yasuj university of medical sciences, yasuj, ir iran ahmad khosravi center for health related social and behavioral sciences research, shahroud university of medical sciences, shahroud, ir iran jill r. janke school of nursing, university of alaska, anchorage, usa

objectives we aimed to translate the bapt into farsi, assess its content validity, and examine its reliability and validity to identify exclusive breastfeeding discontinuation in iran. materials and methods the bapt was translated into farsi and the content validity of the farsi version of the bapt was assessed. it was administered to 356 pregnant women in the third trimester of pregnancy, who ...

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