Results 41 to 50 of about 2,588,475 (274)

Type I interferons modulate autophagy to shape gemcitabine response in pancreatic cancer cells

open access: yesFEBS Open Bio, EarlyView.
Type I interferons differentially modulate autophagy and the response of pancreatic cancer cells to gemcitabine. IFNα2b stimulates autophagic flux and protects cells from gemcitabine‐induced cell death, contributing to chemoresistance. In contrast, IFNβ1a inhibits autophagosome formation and enhances gemcitabine‐induced cell death, resulting in ...
Lucy E. Bonilla   +10 more
wiley   +1 more source

Evolución de las competencias científicas en las carreras de Bioquímica y Biotecnología de la Universidad Nacional del Litoral, Argentina. Un estudio longitudinal

open access: yesEnseñanza de las Ciencias, 2015
Este estudio está fundamentado en el marco de las pruebas PISA 2006 (OCDE, 2008), sobre competencia científica. En la presente tesis se indagó en qué medida una muestra de alumnos de las carreras de Bioquímica y Biotecnología de la Universidad Nacional ...
Claudia Beatriz Falicoff
doaj  

Oil-in-water food emulsions stabilized by tuna proteins

open access: yesGrasas y Aceites, 2010
This work is focused on the development of o/w salad dressing-type emulsions stabilized by tuna proteins. The influence of protein conservation methods after the extraction process (freezing or liofilization) on the rheological properties and ...
D. Ruiz-Márquez   +3 more
doaj   +1 more source

Aspectos del concepto de aprendizaje de las ciencias y el papel de la metacognición [PDF]

open access: yes, 1999
RESUMEN: En este artículo se aborda la perspectiva metacognitiva sobre el aprendizaje de las ciencias, se plantean los roles tanto de estudiantes como de profesores dentro de un modelo didáctico de aprendizaje y se clarifica lo que se debe entender por ...
Soto Lombana, Carlos Arturo   +1 more
core  

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

Virtual escape room and STEM content: Effects on the affective domain on teacher trainess

open access: yesJournal of Technology and Science Education, 2021
In recent times, there has been growing disinterest by students in STEM disciplines (science, technology, engineering, and mathematics). This trend is especially acute in those students who do not take STEM content during their secondary or high school ...
Félix Yllana Prieto   +2 more
doaj   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

open access: yesAdvanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar   +1 more
wiley   +1 more source

Table Games as a Tool to Learn about Material Science in Engineering and Architecture Studies

open access: yesEducation Sciences
The project involved applying gamification methodology in the teaching of engineering and materials science through the creation of a board game. This game facilitated the active study of the subject, encouraged self-assessment, and developed general ...
Ainhoa Riquelme   +8 more
doaj   +1 more source

Clay raw materials from the Triassic Red Beds (Northern Jaen, Spain) for making ceramic construction materials

open access: yesMateriales de Construccion, 2004
The suitability of Triassic Red Beds from northern Jaén in the production of structural clay products has been evaluated. These materials have high phyllosilicate contents (36-69%), although some samples are enriched in quartz (
M. Vázquez, J. Jiménez-Millán
doaj   +1 more source

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