Results 151 to 160 of about 1,991,396 (304)

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

Advanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán, Elena Pérez‐Elvira, Diego J. Vicent, Marco Lozano, Diego Soler‐Polo, Koen Lauwaet, José M. Gallego, Rodolfo Miranda, José I. Urgel, Pavel Jelínek, Nazario Martín, David Écija   +11 more
wiley   +1 more source

Autoconcepto, motivación y rendimiento escolar en alumnos de 5º de EGB [PDF]

, 1994
En este trabajo se estudian las relaciones entra las dimensiones académicas y no académicas del autoconcepto, la orientación motivacional intrínseca/extrínseca en el aula y el rendimiento académico en una muestra de 668 estudiantes de 5º de EGB.
González-Torres, M.C. (María Carmen), Iriarte-Redín, C. (Concha), Tourón, J. (Javier)   +2 more
core  

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Hubungan Antara Konsep Diri Dengan Intensi Menyontek [PDF]

, 2016
Intension of cheating is the intention or desire to get answers during the test to obtain the value of unlawfully using the information from the outside, based on the person's attitudes and beliefs as well as attitudes and beliefs of others that ...
, Taufik Kasturi, S.Psi., M.Si., Ph.D, ARIFAH, ENIS RACHMAWATI   +1 more
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Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

The relationship between self-concept, self-efficacy, self-esteem, anxiety and science performance among Iranian students [PDF]

, 2012
This study examined if students’ general self-concept, science self-concept, self-efficacy, science self-efficacy, self-esteem, anxiety and science anxiety can be considered as predictors for science performance among lower secondary school students. The
Hassan, Siti Aishah, Sahranavard, Maryam
core  

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

Learning strategies, self-concept and academic achievement in adolescents [PDF]

, 2013
[Resumen] Las estrategias de aprendizaje en los procesos de estudio forman parte intrínseca de las herramientas básicas de las que hacen uso los estudiantes a la hora de proceder a la adquisición, retención, comprensión, elaboración, transferencia y ...
Barca Enríquez, Eduardo, Barca-Lozano, Alfonso, Castro, Florencio Vicente, Peralbo, Manuel, Porto Rioboo, Ana María, Santorum Paz, Rosa   +5 more
core   +1 more source

An Examination of the relationships between academic self-concept, global self-concept, locus of control, and academic achievement

, 1986
Bibliography: p. 62-77.
openaire   +2 more sources

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source