Results 71 to 80 of about 2,013,324 (312)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Contrast enhancement by searching discriminant color projections in dermoscopy images

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2016
El uso del color como una estrategia de incremento del contraste para procedimientos de extracción de características en imágenes con altos desórdenes de iluminación es de gran utilidad; por lo tanto, con el fin de corregir los problemas de contraste en ...
Cristian Felipe Ocampo-Blandón   +3 more
doaj  

Volatility in EMU sovereign bond yields: Permanent and transitory components [PDF]

open access: yes
This paper explores the evolving relationship in the volatility of sovereign yields in the European Economic and Monetary Union (EMU). To that end, we examine the behaviour for daily yields for 11 EMU countries (EMU-11), during the 2001-2010 period. In a
Amalia Morales-Zumaquero   +1 more
core  

Anatomía, fisiología, componentes y alteraciones de la consciencia. [PDF]

open access: yes, 2017
En la actualidad se conoce muy poco sobre los mecanismos de la consciencia y cómo estos se ven afectados cuando se sufre daño cerebral. Esto despierta gran debate en la comunidad científica y por ello es importante marcar unas bases que sirvan como ...
Suárez González, Diego Eduardo
core  

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Conexidad en pequeño y conexidad local en C¿(X) [PDF]

open access: yes, 2006
Sean X un continuo y C∞ (X) el conjunto de los subconjuntos no vacíos y cerrados de X que tienen un número finito de componentes. En este trabajo demostraremos que, para A ∈ C∞ (X): 1. C∞ (X) es localmente conexo en A si y sólo si
OROZCO ZITLI, FERNANDO   +1 more
core  

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Un Sistema de Anotaciones para la Especificación de Componentes en una Línea de Productos de Software

open access: yesTecnología y Ciencia, 2019
Las Líneas de Productos de Software (LPS) promueven el reuso y la mejorara de tiempos, costos y calidad de los productos obtenidos. Además, utilizar un enfoque basado en componentes para el desarrollo de los servicios requeridos por las mismas ...
Matias Pol’la   +3 more
doaj  

SELEÇÃO INDIRETA EM AVEIA PARA O INCREMENTO NO RENDIMENTO DE GRÃOS INDIRECT SELECTION IN OAT TO IMPROVE GRAIN YIELD

open access: yesCiência Rural, 2001
Os diferentes caracteres de importância econômica para a cultura da aveia estão correlacionados entre si em magnitude e sentido variado. Tal fato implica que a seleção realizada sobre um caráter pode proporcionar alterações em outros, cujo resultado pode
Eduardo Caierão   +5 more
doaj   +1 more source

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