Results 111 to 120 of about 2,244,395 (267)

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Bioorthogonal Photoactivation of 2‐Nitrobenzyl Caged Doxorubicin Anticancer Prodrugs on Gold Nanostars

open access: yesAdvanced Materials, EarlyView.
Bioorthogonal chemistry was applied to intracellularly photoactivate Doxorubicin (Dox) using gold nanostars (AuNSt) and near‐infrared (NIR) light. Two prodrugs were used: one photoactivatable, masked with 2‐nitrobenzyl carbamate (proDox1) and another photolabile, masked with 2‐nitrobenzyl diol (proDox2), which was attached to the AuNSt surface.
Juan José Esteve‐Moreno   +15 more
wiley   +1 more source

La investigación como una aventura de producción dialógica: La relación con el otro y los criterios de validación en la metodología cualitativa contemporánea Research as an adventure of dialogic production: The relationship with the other and the criterion for validation in contemporry qualitative methodology

open access: yesPsicoperspectivas, 2008
El presente texto aborda algunas de las temáticas más relevantes para el devenir contemporáneo de la investigación cualitativa luego de la crisis de los paradigmas positivistas.
Vicente Sisto
doaj  

La responsabilidad social en la investigación: un caso Universidad-Estado-Pymes [PDF]

open access: yes, 2007
En la actualidad hay coincidencia en llamar al siglo XXI : el tiempo de la responsabilidad. Esta ética de la responsabilidad, por cierto, atraviesa a todos los ámbitos: la ciencia, la empresa, los partidos políticos, las organizaciones libres del pueblo,
Campagna, María Cristina
core  

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

open access: yesAdvanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez   +9 more
wiley   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced 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   +17 more
wiley   +1 more source

Perceveid Social Support in middle school students [PDF]

open access: yes, 2016
Research on school climate has among its purposes to contribute to improving the quality of education, one of the main challenges of the Mexican educational system, particularly at the level of basic education.
Comesaña, Ana   +4 more
core  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

PRACTICALITY OF THE SOCIAL EDUCATOR: A LOOK ETHNOGRAPHIC IN A FLOOR OF SUPPORT TO THE TREATMENT FOR DRUG DEPENDENTS

open access: yesTendencias Pedagógicas, 2015
This field research deal with some theorical and practical points about a reconceptualization of Social Education. This research shows the field work perfomed in a residential-home for drug addiction treatment (P.A.T.) during 15 months.
Francisco Javier Pericacho Gómez   +2 more
doaj  

Auto cuido en adolescentes de quinto y sexto grado, escuela nicarao, comunidad las banquitas municipio de Matagalpa, periodo agosto 2015 a diciembre 2016 [PDF]

open access: yes, 2017
La presente investigación titulada “Auto cuido en adolescentes de quinto y sexto grado de la escuela Nicarao, comunidad las Banquitas municipio de Matagalpa durante el periodo agosto 2015 a diciembre 2016”.
Garcia Davila, Yaritza Sofia   +1 more
core  

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