Results 51 to 60 of about 1,520,463 (346)

Does education level affect the efficacy of a community based salt reduction program? - A post-hoc analysis of the China Rural Health Initiative Sodium Reduction Study (CRHI-SRS)

BMC Public Health, 2016
Background Whether educational level influences the effects of health education is not clearly defined. This study examined whether the impact of a community-based dietary salt reduction program was affected by the level of education of participants ...
Xin Wang, Xian Li, Ilonca Vaartjes, Bruce Neal, Michiel L. Bots, Arno W. Hoes, Yangfeng Wu   +6 more
doaj   +1 more source

Cluster identification, selection, and description in cluster randomized crossover trials: the PREP-IT trials

Trials, 2020
Background In cluster randomized crossover (CRXO) trials, groups of participants (i.e., clusters) are randomly allocated to receive a sequence of interventions over time (i.e., cluster periods).
Sheila Sprague, Taryn Scott, Shannon Dodds, David Pogorzelski, Paula McKay, Anthony D. Harris, Amber Wood, Lehana Thabane, Mohit Bhandari, Samir Mehta, Greg Gaski, Christina Boulton, Francesc Marcano-Fernández, Ernesto Guerra-Farfán, Joan Hebden, Lyndsay M. O’Hara, Gerard P. Slobogean, on behalf of the PREP-IT Investigators   +17 more
doaj   +1 more source

Embedded formative assessment and classroom process quality. How do they interact in promoting students\u27 science understanding [PDF]

, 2015
In this study we examine the interplay between curriculum-embedded formative assessment-a well-known teaching practice-and general features of classroom process quality (i.e., cognitive activation, supportive climate, classroom management) and their ...
Büttner, Gerhard, Decristan, Jasmin, Fauth, Benjamin, Hardy, Ilonca, Hertel, Silke, Hochweber, Jan, Hondrich, Anna Lena, Klieme, Eckhard, Kunter, Mareike, Rieser, Svenja   +9 more
core   +1 more source

More Powerful Cluster Randomized Control Trials

Economic Development and Cultural Change, 2022
Balanced experimental designs, in which the number of treatment and control units are the same, do not maximize power subject to a cost constraint when treat-ment units are more expensive than control ones. Despite this, such balanced designs are the norm in economics. This paper describes methods to optimally choose the number of treatment and control
Marcos Vera-Hernandez, Brendon McConnell
openaire   +3 more sources

Citywide cluster randomized trial to restore blighted vacant land and its effects on violence, crime, and fear

Proceedings of the National Academy of Sciences of the United States of America, 2018
Significance Blighted and vacant urban land is a widespread and potentially risky environmental condition encountered by millions of people every day. About 15% of the land in US cities is deemed vacant or abandoned, translating into an area roughly the ...
C. Branas, Eugenia C South, M. Kondo, Bernadette C Hohl, Philippe Bourgois, D. Wiebe, J. Macdonald   +6 more
semanticscholar   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Eliminating Monitor Overuse (EMO) type III effectiveness-deimplementation cluster-randomized trial: Statistical analysis plan

Contemporary Clinical Trials Communications, 2023
Background: Deimplementing overused health interventions is essential to maximizing quality and value while minimizing harm, waste, and inefficiencies. Three national guidelines discourage continuous pulse oximetry (SpO2) monitoring in children who are ...
Rui Xiao, Christopher P. Bonafide, Nathaniel J. Williams, Zuleyha Cidav, Christopher P. Landrigan, Jennifer Faerber, Spandana Makeneni, Courtney Benjamin Wolk, Amanda C. Schondelmeyer, Patrick W. Brady, Rinad S. Beidas, Enrique F. Schisterman   +11 more
doaj   +1 more source

Impact of early initiation versus national standard of care of antiretroviral therapy in Swaziland's public sector health system : study protocol for a stepped-wedge randomized trial [PDF]

, 2017
Background: There is robust clinical evidence to support offering early access to antiretroviral treatment (ART) to all HIV-positive individuals, irrespective of disease stage, to both improve patient health outcomes and reduce HIV incidence. However, as
Barnighausen, Till, Delva, Wim, Fleming, Yvette, Khumalo, Gavin, Lejeune, Charlotte L, Mazibuko, Sikhathele, Mlambo, Charmaine Khudzie, Okello, Velephi, Reis, Ria, Spiegelman, Donna, Walsh, Fiona J, Zwane, Mandisa   +11 more
core   +5 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Selection bias and subject refusal in a cluster-randomized controlled trial

BMC Medical Research Methodology, 2017
Background Selection bias and non-participation bias are major methodological concerns which impact external validity. Cluster-randomized controlled trials are especially prone to selection bias as it is impractical to blind clusters to their allocation ...
Rochelle Yang, Barry L. Carter, Tyler H. Gums, Brian M. Gryzlak, Yinghui Xu, Barcey T. Levy   +5 more
doaj   +1 more source