Results 21 to 30 of about 23,801 (236)

Biodiversidad y ecosistemas: una revisión sistemática en Didáctica de las Ciencias Experimentales (2012-2024)

Revista Eureka sobre Enseñanza y Divulgación de las Ciencias
El conocimiento y comprensión de la biodiversidad y de los ecosistemas constituyen en el contexto actual una necesidad educativa.
Juliana Valencia Ruiz , María del Carmen Acebal Expósito, Antonio Joaquín Franco Mariscal   +2 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Ostrácodos de la desembocadura del río Guadalquivir (SO de España)

Estudios Geologicos
Este trabajo estudia las asociaciones de ostrácodos del río Guadalquivir desde su desembocadura hasta 35 km aguas arriba. Se describen cuatro zonas en función de las especies presentes, cuya distribución espacial está condicionada principalmente por la ...
María Luz González-Regalado, José Borrego, Berta Carro, Francisco Ruiz, Joaquín Rodríguez Vidal, Luis Miguel Cáceres, Paula Gómez, Antonio Toscano, Verónica Romero, Manuel Abad, Tatiana Izquierdo, Gabriel Gómez   +11 more
doaj   +1 more source

EL DESENCUENTRO ENTRE CIENCIA Y EDUCACIÓN; un problema científico-social

International Journal of Sociology of Education, 2017
Este trabajo pretende abordar la problemática ante la cual se enfrentan los países occidentales ante el incremento tecnológico del sistema productivo, y la carencia de licenciados en ciencias experimentales. En el mercado laboral existen muchos trabajos
Jesús Alberto Valero-Matas, Irene Valero-Oteo, Juan Romay Coca   +2 more
doaj   +1 more source

Proteasomal degradation of intracellularly expressed Amblyomin‐X limits suicide gene therapy potential in melanoma cells

FEBS Open Bio, EarlyView.
This study explores the feasibility of expressing the antitumoral protein Amblyomin‐X through a suicide gene therapy approach and investigates its intracellular fate after gene delivery. Although the gene is efficiently expressed, melanoma cells rapidly degrade the Amblyomin‐X protein via proteasome activity.
Victor Dal Posolo Cinel, Carlos DeOcesano Pereira, Aline Ramos Maia Lobba, Melissa Regina Fessel, Ana Marisa Chudzinski‐Tavassi   +4 more
wiley   +1 more source

Potential of science to address the hunger issue: Ecology, biotechnology, cattle breeding and the large pantry of the sea

Journal of Innovation & Knowledge, 2018
The knowledge about the real possibilities that current science gives us is basic to support everything that is not negative either for men or for our environment.
José Tena Medialdea, Jesús A. Prieto Ruiz, Carmen Fagoaga García, Antonio Calvo Capilla, Jerónimo Chirivella Martorell, Joel Bueso Rodenas   +5 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

A Study of the Usefulness of Physical Models and Digital Models for Teaching Science to Prospective Primary School Teachers

Education Sciences, 2023
This study focuses on the impact of the use of teaching resources on future teachers in different formats, physical and digital. We worked with a single task dealing with nutrition in humans with two groups of students, but one group worked with a ...
F. Javier Robles-Moral, Manuel Fernández-Díaz, Gabriel Enrique Ayuso-Fernández   +2 more
doaj   +1 more source

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

FEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão, Diogo M. Engrácia, Graça Soveral, Filipa Mendes   +3 more
wiley   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source