نتایج جستجو برای: randomized and counterbalanced design
تعداد نتایج: 16976648 فیلتر نتایج به سال:
OBJECTIVE: To measure muscle temperature of ultrasound at 1-MHz and 3-MHz frequencies at a depth of 2.5 cm and to compare treatment durations for vigorous heating (increase of 4 degrees C) and for heating to 40 degrees C. DESIGN AND SETTING: A counterbalanced, repeated-measures design with 1 fixed, independent variable, 1.5-W/cm(2) ultrasound treatment (1 MHz, 3 MHz, or control [sham]) using a ...
The present study sought to explore the impact of story maps and audio podcasts as scaffolds on oral proficiency of Iranian EFL learners. The quasi-experimental study was launched with 36 EFL undergraduates in three groups by adopting a counterbalanced 3 3 Latin squared design. All participants were indiscriminately, but in a specified order, exposed to the three treatment conditions of story ...
background: organic nitrates relax all kinds of smooth muscle , not only vascular smooth muscle , a fact that has allowed the use of these drugs to treat many different aliments. objective.-the purpuse of this study was to examine prosepectively benefical effects , if any, of sublingual nitroglycerin on the pain of renal colic. design.- prospective , randomised , double blind, placebo- contoled...
in order to comprise the effects of sodium bicarbonate supplementation on anaerobic performance and some plasma metabolites, 16 young male athletes (age 20.58?3.25, height 175.33?2.48 cm and bmi 21.57? 2.68 kg/m2) participated in two 400 m running sessions one hour following sodium bicarbonate or placebo (calcium bicarbonate) supplementation with the counterbalanced order. there were three bloo...
The benefits provided by health-related technologies are often counterbalanced by the societal, legal and ethical challenges connected with the pervasive monitoring of people, as necessitated by such technological interventions. Through the ProtoPolicy research project we explored the co-creation and use of design fictions as a tool for open debate of pervasive health systems. Design fictions w...
wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...
My object in this lecture will be to give an overview of the statistical aspects of current clinical trial methodology, including a very brief history, my view of current practice, recent relevant statistical developments, and areas that need further statistical research. My primary concern will be clinical experiments, though I will have some comments on other types of study of clinical data a...
Two-level factorial and fractional factorial designs have played a prominent role in the theory and practice of experimental design. Though commonly used in industrial experiments to identify the significant effects, it is often undesirable to perform the trials of a factorial design (or, fractional factorial design) in a completely random order. Instead, restrictions are imposed on the randomi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید