Results 101 to 110 of about 981,244 (354)

Weighing evidence ‘steampunk’ style via the Meta-Analyser [PDF]

open access: yes, 2016
The funnel plot is a graphical visualization of summary data estimates from a meta-analysis, and is a useful tool for detecting departures from the standard modeling assumptions.
Bowden, Jack, Jackson, Chris
core   +2 more sources

Observation of Dislocation Bound States and Skin Effects in Non‐Hermitian Chern Insulators

open access: yesAdvanced Materials, EarlyView.
Experimental observation of the dislocation‐induced bound states and skin effects is demonstrated in a line‐gap non‐Hermitian acoustic lattice. By utilizing active meta‐atoms to measure the full complex spectrum and biorthogonal eigenstates, the study reveals the exceptional‐point‐driven melting of defect modes.
Jia‐Xin Zhong, Bitan Roy, Yun Jing
wiley   +1 more source

Association between uric acid and the risk of hemorrhagic transformation in patients with acute ischemic stroke: a systematic review and meta-analysis

open access: yesFrontiers in Neurology
BackgroundThe relationship between hemorrhagic transformation (HT) and uric acid (UA) remains controversial. This study aimed to investigate the relationship between UA concentrations and the risk of HT following acute ischemic stroke (AIS ...
Ying Qian   +12 more
doaj   +1 more source

Constrained MSSM favoring new territories: The impact of new LHC limits and a 125 GeV Higgs boson

open access: yes, 2012
We present an updated and extended global analysis of the Constrained MSSM (CMSSM) taking into account new limits on supersymmetry from ~5/fb data sets at the LHC.
A. Djouadi   +11 more
core   +1 more source

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

open access: yesAdvanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen   +10 more
wiley   +1 more source

CdTe Quantum Dots Encapsulated on Perovskite Grains Enable Highly Efficient and Stable Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Present work demonstrates an efficient laser‐assisted localized interfacial engineering strategy that achieves epitaxial‐grade atomic coherence in spatially defined p‐n microscopic heterointerfaces, via precisely embedding p‐type CdTe QDs into an n‐type perovskite matrix, which concurrently establishes dual optimization of microscale carrier management
Wenhao Zhao   +7 more
wiley   +1 more source

Capture-recapture method for assessing publication bias

open access: yesJournal of Research in Medical Sciences, 2010
Background: Publication bias is an important factor that may result in selection bias and lead to overestimation of the intervention effect. In this study, the focus was on using capture-recapture method as a statistical procedure which may possibly be a
Jalal Poorolajal   +5 more
doaj  

Problem-Based Learning Model On Students’ Mathematical Ability: A Meta-Analysis

open access: yesJournal of Mathematics Instruction, Social Research and Opinion
Mathematical ability is a core competence that students must master and develop in mathematics education. One instructional model considered effective for enhancing this competence is Problem-Based Learning (PBL), which positions students at the center ...
Yadi Mulyadi, Iva Sarifah, Mahmud Yunus
doaj   +1 more source

Guidelines on constructing funnel plots for quality indicators: A case study on mortality in intensive care unit patients

open access: yesStatistical Methods in Medical Research, 2017
Funnel plots are graphical tools to assess and compare clinical performance of a group of care professionals or care institutions on a quality indicator against a benchmark.
I. Verburg   +4 more
semanticscholar   +1 more source

Conducting Meta-Analyses in R with the metafor Package [PDF]

open access: yes
The metafor package provides functions for conducting meta-analyses in R. The package includes functions for fitting the meta-analytic fixed- and random-effects models and allows for the inclusion of moderators variables (study-level covariates) in these
Wolfgang Viechtbauer
core   +1 more source

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