Results 101 to 110 of about 29,380 (303)

Enhancing Recruitment Using Teleconference and Commitment Contract (ERUTECC): study protocol for a randomised, stepped-wedge cluster trial within the EFFECTS trial

open access: yesTrials, 2018
Background Many randomised controlled trials (RCTs) fail to meet their recruitment goals in time. Trialists are advised to include study recruitment strategies within their trials. EFFECTS is a Swedish, academic-led RCT of fluoxetine for stroke recovery.
Erik Lundström   +4 more
doaj   +1 more source

Stepped wedge cluster randomised trials: a review of the statistical methodology used and available [PDF]

open access: yes, 2016
Background: Previous reviews have focussed on the rationale for employing the stepped wedge design (SWD), the areas of research to which the design has been applied and the general characteristics of the design.
Barker, D.   +3 more
core   +3 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Stepped wedge cluster randomized controlled trial designs: a review of reporting quality and design features [PDF]

open access: yes, 2017
Background The stepped wedge (SW) cluster randomized controlled trial (CRCT) design is being used with increasing frequency. However, there is limited published research on the quality of reporting of SW-CRCTs.
Grayling, Michael J   +2 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

The use of permutation tests for the analysis of parallel and stepped-wedge cluster randomized trials [PDF]

open access: yes, 2016
We investigate the use of permutation tests for the analysis of parallel and stepped-wedge cluster randomized trials. Permutation tests for parallel designs with exponential family endpoints have been extensively studied.
DeGruttola, Victor, Wang, Rui
core   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

open access: yesFEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth   +6 more
wiley   +1 more source

Reporting quality of stepped wedge design randomized trials: a systematic review protocol

open access: yesClinical Epidemiology, 2016
Alex Thabane,1,2 Brittany B Dennis,3,4 Olga Gajic-Veljanoski,3,9,10 James Paul,2,3 Lehana Thabane2,3,5-8 1Life Sciences Program, Queen’s University, Kingston, ON, Canada; 2Department of Anesthesia, McMaster University Hamilton ON, 3Department of ...
Thabane A   +4 more
doaj  

The hunt for efficient, incomplete designs for stepped wedge trials with continuous recruitment and continuous outcome measures

open access: yesBMC Medical Research Methodology, 2020
Background We consider the design of stepped wedge trials with continuous recruitment and continuous outcome measures. Suppose we recruit from a fixed number of clusters where eligible participants present continuously, and suppose we have fine control ...
Richard Hooper   +2 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

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