Results 301 to 310 of about 1,342,284 (362)

Emergence of Local Magnetic Moment in Ternary TaWSe2 Single Crystal via Atomic Clustering

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates local magnetic moments in ternary TaWSe2. Triangular Ta clusters with consistent shapes are identified through STM/S, and DFT calculations. These clusters induce localized strain, generating magnetic moments at the cluster corners. Magnetic measurements confirm a magnetic anomaly at ∼50 K.
Nguyen Huu Lam   +13 more
wiley   +1 more source

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

open access: yesAdvanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa   +4 more
wiley   +1 more source

A Construct Validation Study of PLAYfun

Medicine & Science in Sports & Exercise, 2018
Physical Literacy Assessment for Youth (PLAYfun) is a measure of motor competence, comprehension, and confidence which is part of a suite of scales used to assess physical literacy in children and youth; however, its measurement properties have not been reported in the published literature.
Cairney, John   +6 more
openaire   +4 more sources

Narratives of Construct Validation

Evaluation & the Health Professions, 1994
This article presents a critique of the social and political context in which the idea of construct validation developed. Itoutlines the rhetorical as well as the empirical andphilosophical dimensions of the concept Finaly, the essay offers an alternative viewpoint for the conceptulizaton of construct validation and links it to current treatments of ...
openaire   +3 more sources

The Social Construction of Validity

Qualitative Inquiry, 1995
Validation of qualitative research is here discussed in relation to postmodern conceptions of knowledge. A modernist notion of true knowledge as a mirror of reality is replaced by a postmodern understanding of knowledge as a social construction. Of the common psychometric concepts of validity, predictive validity is related to a modernist correspon ...
openaire   +3 more sources

All Validity Is Construct Validity. Or Is It?

Measurement: Interdisciplinary Research & Perspective, 2012
Paul E. Newton's article on the consensus definition of validity tackles a number of big issues and makes a number of strong claims.
openaire   +2 more sources

Construct Validation of Metacognition

The Journal of Psychology, 1993
Abstract Recent investigations have established the importance of metacognition in the acquisition and application of learning skills in diverse domains of inquiry. Despite the voluminous theoretical and empirical research, there remain some unanswered questions regarding the specific components underlying the construct and whether these components are
Eleanor Armour-Thomas, Brenda A. Allen
openaire   +2 more sources

Home - About - Disclaimer - Privacy