Results 41 to 50 of about 71,150 (219)

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

Advanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz, Nicole Siegel, Guillermo Serrera, Javier González‐Colsa, Fangjia Zhu, Karol Kołątaj, Minoru Fujii, Hiroshi Sugimoto, Pablo Albella, Guillermo P. Acuna   +9 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

Psicoperspectivas, 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  

Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy

Advanced Functional Materials, EarlyView.
This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez, Jose I. Garcia‐Peiro, Jose L. Hueso, Eduardo Caleiras, Laura Notario, Felipe Hornos, Pilar Martin‐Duque, Antonio De la Vieja, Jesus Santamaria   +8 more
wiley   +1 more source

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

Mapping the Cerebral Organoid Landscape: A Systematic Review of Preclinical 3D Models in Neuroscience

Advanced Healthcare Materials, EarlyView.
Cerebral organoids are transforming brain research, yet the field remains fragmented. This comprehensive systematic review maps 738 studies published between 2014 and 2024 to uncover trends, gaps, and opportunities across neuroscience. Introducing OrganoidMap—an interactive, open‐access platform to explore and compare models—this work enables ...
Anna Wolfram, Vanessa Arnold, Maik Wolfram‐Schauerte, Anastassiya Moskalchuk, Caroline Trust, Marie Vontz, Mona Scheurenbrand, Vijayasarathy Sampath‐Kumar, Sogand Ahari, Carlos Romero‐Nieto, Lisa Sevenich   +10 more
wiley   +1 more source

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

Tendencias 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, Mario Andrés Candelas, Itziar Fernández Cortés   +2 more
doaj  

Copper–Collagen Interactions Regulate the Mechanical and Invasive Properties of Tumor Spheroids

Advanced Healthcare Materials, EarlyView.
Ionic copper is investigated as a modulator of tumor spheroid growth and invasiveness in a 3D microfluidic glioblastoma model. Copper exposure alters metabolic activity, cytoskeletal organization, protrusion dynamics, and EMT‐related phenotypes in a dose‐ and timing‐dependent manner, revealing how copper bioavailability shapes tumor aggressiveness ...
Paula Guerrero‐López, Jose I. Garcia‐Peiro, Felipe Hornos, Jose L. Hueso, Jesus Santamaria, J. Manuel Garcia‐Aznar   +5 more
wiley   +1 more source

Prevalencia de prácticas cuestionables de investigación en la sociología española: aproximación comparada a otras disciplinas y países

methaodos.revista de ciencias sociales
El objetivo del presente artículo es explorar la prevalencia de prácticas cuestionables de investigación (en adelante, PCI) de la sociología en España desde una perspectiva comparada con otras disciplinas y países del entorno. Para ello se hace uso de la
Daniel de Gracia Palomera, Álvaro Suárez-Vergne   +1 more
doaj   +1 more source

És possible una explicació objectiva sobre la realitat social? Reflexions bàsiques i imprescindibles per a investigadors novells

Didacticae, 2017
L'article té una intenció clarament formativa per als investigadors novells. Conté sis apunts assagístics en els que es plantegen les qüestions més recurrents quan tractem la investigació en les didàctiques: la naturalesa del coneixeement; una ...
Joaquim Prats, Roberto Fernández
doaj   +1 more source

The paradoxes of reason in tasks of university research and teaching

Revista Katálysis, 2020
This article proposes a reflection on the challenge of overcoming the paradoxes of modern reason regarding the tasks of university research and teaching, based on the changes in students’ profile.
Carolina González Laurino
doaj   +1 more source