نتایج جستجو برای: bias and monitoring

تعداد نتایج: 16888053  

ژورنال: حیات 2016
جانانی, لیلا, محمدی, مینا,

Background & Aim: Randomized clinical trials (RCTs) are studies which are able to provide the most valid evidence to compare various interventions in health research. Biases can affect the quality of research and ultimately make the results of a study invalid. One of the most important biases is selection bias. The best way to reduce selection bias is the use of random allocation. The aim of th...

Journal: :Health technology assessment 2015
Pawana Sharma Graham Scotland Moira Cruickshank Emma Tassie Cynthia Fraser Chris Burton Bernard Croal Craig R Ramsay Miriam Brazzelli

BACKGROUND Self-monitoring (self-testing and self-management) could be a valid option for oral anticoagulation therapy monitoring in the NHS, but current evidence on its clinical effectiveness or cost-effectiveness is limited. OBJECTIVES We investigated the clinical effectiveness and cost-effectiveness of point-of-care coagulometers for the self-monitoring of coagulation status in people rece...

Journal: :تحقیقات جغرافیایی 0
مریم کریمیان پژوهشکده اقلیم شناسی ایمان بابائیان پژوهشکده اقلیم شناسی ایمان بابائیان پژوهشکده اقلیم شناسی راهله مدیریان پژوهشکده اقلیم شناسی

â â â  in this study, ability and skill of the nesting version of the regcm3 regional climate model in simulation of monthly and seasonal amount of precipitation and temperature using four different cumulus parameterization of grell-as, grell-fc, emanuel and kuo have been studied over khorasan area including three provinces of north khorasan, khorasan razavi and south khorasan. in this regards,...

Journal: :iranian journal of nuclear medicine 2014
vahid-reza dabbagh kakhki ramin sadeghi maryam torabian-kakhki maseoud pezeshki-rad kayvan sadri

introduction: it is recommended that the physician apply at least a semi-quantitative segmental scoring system in myocardial perfusion spect.  we aimed to assess the agreement between automated semi-quantitative analysis using qps (quantitative perfusion spect) software and visual approach for calculation of summed stress  score (sss), summed rest score (srs) and summed difference score (sds). ...

2011
Christopher H. R. Goatley David R. Bellwood

Canopies are common among autotrophs, increasing their access to light and thereby increasing competitive abilities. If viewed from above canopies may conceal objects beneath them creating a 'canopy effect'. Due to complexities in collecting 3-dimensional data, most ecosystem monitoring programmes reduce dimensionality when sampling, resorting to planar views. The resultant 'canopy effects' may...

A. Eskandari-asl

The one photon absorption (OPA) cross section of a current carrying two-orbital quantum dot (QD) with strong electron-phonon interaction (polaron regime) is considered. Using the self-consistent non-equilibrium Hartree-Fock (HF) approximation, we determine the dependence of OPA cross section on the applied bias voltage, the strength of effective electron-electron interaction, and level spacing ...

2010
Jaehoon Kim K.-S. Lee J.-G. Oh

This study aimed to replace the current discontinuous rail monitoring system by applying “Plug and Play” technology to rail system monitoring to enable real-time monitoring, and by confirming on-condition maintenance efficiency and reliability. It examined a wireless sensor monitoring system which uses SAW (Surface Acoustic Wave) technology to monitor temperature changes in the axle box bearing...

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