Results 41 to 50 of about 60,131 (235)

Morphological and Structural Evaluation of Hydration/Dehydration Stages of MgSO4 Filled Composite Silicone Foam for Thermal Energy Storage Applications [PDF]

, 2020
Salt hydrates, such as MgSO4·7H2O, are considered attractive materials for thermal energy storage, thanks to their high theoretical storage density. However, pure salt hydrates present some challenges in real application due to agglomeration, corrosion ...
Brancato, Vincenza, Bruzzaniti, Paolo, Cabeza, Luisa F., Calabrese, Luigi, Caprì, Angela, Frazzica, Andrea, Milone, Candida, Palomba, Valeria, Piperopoulos, Elpida, Proverbio, Edoardo   +9 more
core   +2 more sources

Factorial validity and measurement invariance across gender groups of the German version of the Interpersonal Reactivity Index

Measurement Instruments for the Social Sciences, 2020
The Interpersonal Reactivity Index (IRI) is the most widely used measure of empathy, but its factorial validity has been questioned. The present research investigates the factorial validity of the German adaptation of the IRI, the “Saarbrücker ...
Dennis Grevenstein
doaj   +1 more source

The Quest for Comparability: Studying the Invariance of the Teachers' Sense of Self-Efficacy (TSES) Measure across Countries. [PDF]

PLoS ONE, 2016
Teachers' self-efficacy is an important motivational construct that is positively related to a variety of outcomes for both the teachers and their students.
Ronny Scherer, Malte Jansen, Trude Nilsen, Shaljan Areepattamannil, Herbert W Marsh   +4 more
doaj   +1 more source

Structure, bonding and morphology of hydrothermally synthesised xonotlite [PDF]

, 2009
The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite ...
A. Stumm, Black L., Black L., Black L., Black L., Chan C. F., Churakov S. V., Hejny C., K. Garbev, L. Black, Liebau F., Low N. M. P., Mamedov K. S., McWhinney H. G., Mekki A., Mollah M. Y. A., Qian G. R., Regourd M., Saito F., Thomassin J. H.   +19 more
core   +1 more source

Evidence for the reliability and validity, and some support for the practical utility of the two-factor Consideration of Future Consequences Scale-14 [PDF]

, 2016
Researchers have proposed 1-factor, 2-factor, and bifactor solutions to the 12-item Consideration of Future Consequences Scale (CFCS-12). In order to overcome some measurement problems and to create a robust and conceptually useful two-factor scale the ...
Cole, Jon C., McKay, Michael T., Percy, Andrew, Perry, John L.   +3 more
core   +1 more source

Construct Validation of Self-Determination Theory in Second Language Scale: The Bifactor Exploratory Structural Equation Modeling Approach

Frontiers in Psychology, 2021
The present study aimed to assess the construct validity of the Self-Determination Theory in Second Language Scale (SDT-L2; Alamer, 2021). The study involved 266 undergraduate students learning English as a second language (L2) in Saudi Arabia.
Abdullah Alamer, Abdullah Alamer
doaj   +1 more source

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

Advanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu, Xinyi Zhang, Lan Wen, Hongjiang Chen, Yudhistira Tirtayasri Amrillah, Vivi Fauzia, Hongzhen Dong, Shaoqiang Su, Wenjun Luo, Ferry Anggoro Ardy Nugroho, Patrick H.‐L. Sit, Yun Hau Ng, Fatwa F. Abdi   +12 more
wiley   +1 more source

Factorial validity of the Twi versions of five measures of mental health and well-being in Ghana.

PLoS ONE, 2020
BACKGROUND:Mental health is considered an integral part of human health. Reliable and valid measurement instruments are needed to assess various facets of mental health in the native language of the people involved.
Richard Appiah, Lusilda Schutte, Angelina Wilson Fadiji, Marié P Wissing, Amanda Cromhout   +4 more
doaj   +1 more source

Effect of calcium aluminate cement variety on the hydration of Portland cement in blended system [PDF]

, 2014
Two kinds of CACs with different monocalcium aluminate (CA) contents were used in the PC/CAC (PAC) mixtures. Effects of CA and CACs on the properties of PAC were analyzed by setting times and the compressive strength tests, and also by means of ...
De Schutter, Geert, Wang, Peiming, Wu, Guangming, Xu, Linglin   +3 more
core   +2 more sources

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

Advanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell, Xiao‐Meng Sui, Neta Varsano, Stephen Weiner, Lia Addadi   +4 more
wiley   +1 more source