Results 1 to 10 of about 861,631 (286)

The Role of Random Allocation in Randomized Controlled Trials: Distinguishing Selection Bias from Baseline Imbalance

Journal of MultiDisciplinary Evaluation, 2013
Background: This paper addresses one threat to the internal validity of a randomized controlled trial (RCT), selection bias. Many authors argue that random allocation is used to ensure baseline equality between study conditions in a given study and ...
Allyn Fives, Daniel W. Russell, Noreen Kearns, Rena Lyons, Patricia Eaton, John Canavan, Carmel Devaney, Aoife O'Brien   +7 more
doaj   +3 more sources

Dynamic Resource Allocation of Random Access for MTC Devices

ETRI Journal, 2017
In a long term evolution‐advanced (LTE‐A) system, the traffic overload of machine type communication devices is a challenge because too many devices attempt to access a base station (BS) simultaneously in a short period of time.
Sung‐Hyung Lee, So‐Yi Jung, Jae‐Hyun Kim   +2 more
doaj   +2 more sources

A Novel Method for Generating Spatially Resolved Synthetic Populations for Health Impact Assessments in Vulnerable Populations [PDF]

GeoHealth
The spatial resolution of environmental exposure and sociodemographic population data is often mismatched given limited publicly available population data that complies with privacy requirements for individuals. To address this limitation, we developed a
Flannery Black‐Ingersoll, Chad W. Milando, Zachary T. Popp, Mariangelí Echevarría‐Ramos, M. Patricia Fabian, Amruta Nori‐Sarma, Jonathan I. Levy   +6 more
doaj   +2 more sources

An Easily Accessible Web-Based Minimization Random Allocation System for Clinical Trials

Journal of Medical Internet Research, 2013
BackgroundMinimization as an adaptive allocation technique has been recommended in the literature for use in randomized clinical trials.
Xiao, Lan, Huang, Qiwen, Yank, Veronica, Ma, Jun   +3 more
doaj   +2 more sources

Randomization methods and cluster size in cluster randomized trials conducted in elementary and high schools [PDF]

Vojnosanitetski Pregled, 2022
Background/Aim. Randomization allows for study groups to be formed so that they are similar in all characteristics except outcomes. The aim of this study was to examine the frequency of randomization methods and their effect on achieving baseline balance
Pajčin Mirjana, Bukumirić Zoran, Tomašević Jelena, Ilić Aleksandra   +3 more
doaj   +1 more source

On the Numbers of Particles in Cells in an Allocation Scheme Having an Even Number of Particles in Each Cell

Mathematics, 2022
We consider the usual random allocation model of distinguishable particles into distinct cells in the case when there are an even number of particles in each cell. For inhomogeneous allocations, we study the numbers of particles in the first K cells.
Alexey Nikolaevich Chuprunov, István Fazekas   +1 more
doaj   +1 more source

Stress Management as a Clinical Approach to the Complementary Treatment of Fibromyalgia

Applied Sciences, 2021
Fibromyalgia is a chronic syndrome that can have a devastating effect on the lives of those who suffer from it. These types of patients experience high levels of pain, as well as deficits in terms of positive affect and social relationships, which are ...
María del Carmen Zabala-Baños, Jorge Luis Merchán-Pinto, Álvaro Astasio-Picado   +2 more
doaj   +1 more source

Efficacy of an online course in developing competency for prescribing balanced diet by medical students: A non - inferiority trial

Indian Journal of Public Health, 2021
Background: In the COVID era, medical education has been hit hard. Paradoxically, the need for health professionals has increased. Online methods are being widely used, but its efficacy is rarely measured. Objectives: This study was conducted to find the
Zinia T Nujum, P Devanand, G Remya, U Anuja   +3 more
doaj   +1 more source

Intraoral clinical examinations of pediatric patients with anticipatory anxiety and situational fear facilitated by therapy dog assistance: A pilot RCT

Clinical and Experimental Dental Research, 2023
Objective To evaluate whether the presence of a certified therapy dog specially trained for working in a dental setting may facilitate dental care of anxious pediatric patients.
Anne M. Gussgard, Kerstin Carlstedt, Malin Meirik   +2 more
doaj   +1 more source

Interference Spreading through Random Subcarrier Allocation Technique and Its Error Rate Performance in Cognitive Radio Networks

Sensors, 2020
In this letter, we investigate the idea of interference spreading and its effect on bit error rate (BER) performance in a cognitive radio network (CRN). The interference spreading phenomenon is caused because of the random allocation of subcarriers in an
Amit Kachroo, Adithya Popuri, Mostafa Ibrahim, Ali Imran, Sabit Ekin   +4 more
doaj   +1 more source