Results 81 to 90 of about 29,378 (245)

A Single Amino Acid Substitution in CspA Increases Germination Sensitivity and Broadens Bile Salt Germinant Specificity in Clostridioides difficile Spores

open access: yesEnvironmental Microbiology, Volume 28, Issue 6, June 2026.
In reservoir‐associated RT033 strains, we observe a natural rewiring of spore germination that lowers the activation threshold and broadens bile‐salt specificity, enabling germination at low germinant levels and in response to typically inhibitory bile‐salts common in animal hosts.
Isabel Roseiro   +7 more
wiley   +1 more source

Maternidad en niñas: acoplamiento, filiación y artefactos legales en Ecuador del siglo XXI

open access: yes, 2023
El gobierno de Rafael Correa (2007-2017) se caracterizó por reformar todo el sistema legal. Al mismo tiempo, el país ha experimentado un incremento en las cifras de madres entre 10 y 14 años de edad.
Páez Vacas, Carolina Verónica
core   +1 more source

Malassezia restricta‐Derived Extracellular Vesicles Drive Ovarian Cancer Progression Through JAK2/STAT3‐Mediated M2 Macrophage Polarisation

open access: yesMicrobial Biotechnology, Volume 19, Issue 6, June 2026.
Schematic diagram of the potential mechanism by which Malassezia restricta promote ovarian cancer progression. Malassezia restricta‐derived extracellular vesicles promoted epithelial ovarian cancer progression by inducing M2 macrophage polarisation via activation of the JAK2/STAT3 signalling pathway.
Ying Jiang   +7 more
wiley   +1 more source

Efeito de diferentes níveis de ingestão de energia sobre a produção e viabilidade de embriões em novilhas e vacas Effect of different levels of energy intake on production and viability of embryos in heifers and cows

open access: yesRevista Brasileira de Zootecnia, 2003
O objetivo do trabalho foi estudar o efeito do nível de ingestão de matéria seca (IMS/% do PV) sobre ganho de peso, produção e viabilidade de embriões em novilhas mestiças e vacas Nelore.
Luiz Paulo Rigolon   +4 more
doaj   +1 more source

(Re)framing Teacher Resilience Through an Ethico‐Onto‐Epistemological Lens

open access: yesEuropean Journal of Education, Volume 61, Issue 2, June 2026.
ABSTRACT In the face of teacher shortages and early‐career teacher attrition, resilience has emerged as a central focus in preservice teacher education particularly in the Global South, where resource disparities and socio‐political instabilities worsen existing constraints.
Shwe Ye Phyo, Erika Kopp
wiley   +1 more source

Implementación del programa multimedia interactivo eFieldbook para la enseñanza-aprendizaje de las Ciencias Naturales en el Grado de Maestro [PDF]

open access: yes, 2013
Memoria ID12-0110. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2012-2013.Según las directrices oficiales, para lograr la formación científica y didáctica de los maestros que han de impartir la asignatura de Ciencias Naturales ...
Urones Jambrina, Carmen   +2 more
core  

Utilización de ensilaje de caña de azúcar con y sin la adición de NaOH como único forraje para vacas lecheras en el trópico

open access: yesRevista Mexicana de Ciencias Pecuarias, 1981
El objetivo de este experimento fue el de estudiar el efecto de alimentar con ensilaje de caña de azúcar con y sin la adicción de NaOH ( 4%), como única fuente de forraje, sobre vacas lecheras en producción.
Guillermo Gleaves, Marcelo Pérez
doaj  

A Paisagem da Vaca

open access: yes, 2015
The text outlines the transformation of the agricultural landscape in the Entre-Douro-e-Minho region, from a complex, self-sufficient traditional system based on intensive polyculture and integrated use of natural resources, to its gradual dismantling through industrialization and “de-ruralization.” In its place, three main trajectories emerge ...
Domingues, Álvaro, Martins, Ivo
openaire   +2 more sources

Immune Evasion of Helicobacter pylori and Extra‐Gastric Cancer Risk

open access: yesJournal of Gastroenterology and Hepatology, Volume 41, Issue 6, Page 1722-1742, June 2026.
ABSTRACT Helicobacter pylori (H. pylori) is a group 1 gastric carcinogen that plays a significant role in extra‐gastric digestive system cancers. H. pylori disrupts host cell homeostasis through expression of virulence factors leading to immune evasion as well as persistent gastric mucosal colonization. H. pylori infection has been shown to play a role
Evren Doruk Engin   +2 more
wiley   +1 more source

Comportamiento reproductivo de ganado bovino lechero en clima tropical 1. Características reproductivas de vacas holstein y suizo prado

open access: yesRevista Mexicana de Ciencias Pecuarias, 1983
Se analizaron 611 registros reproductivos de las vacas Holstein (H; 277) y Suizo Pardo (SP; 334) pertenecientes al Centro Experimental Pecuario "La Posta" de Paso del Toro, Ver.
Heriberto Román Ponce   +2 more
doaj  

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