Results 51 to 60 of about 77,087 (231)

Evaluación retrospectiva de fiebre amarilla selvática en Venezuela, período 2003 - 2005

open access: yesKasmera, 2008
: Yellow fever is a viral disease, typical of some tropical regions in South America and Africa, causing numerous epidemics with high mortality rates. In order to characterize retrospectively the jungle yellow fever outbreak in Venezuela in the year 2003,
Finol B Esteban   +7 more
doaj  

Estudio epidemiológico de un brote de casos con síntomas irritativos en trabajadores del laboratorio de microbiología y análisis clínicos en un hospital público de tercer nivel

open access: yesArchivos de Prevención de Riesgos Laborales, 2020
Antecedentes: En abril de 2018 se detectó un número inusualmente elevado de síntomas irritativos, digestivos y mareos en trabajadores de los laboratorios de microbiología (LAM) y análisis clínicos (LAC) de un hospital de tercer nivel de Mallorca ...
José María Ramada   +3 more
doaj   +1 more source

Can species adapt to drought using multiple strategies? Lessons from the California poppy

open access: yesNew Phytologist, Volume 250, Issue 5, Page 2918-2932, June 2026.
Summary Plants can escape drought by completing life cycles early, tolerate drought by increasing physiological limits, or avoid drought stress by obtaining or using water more efficiently. It remains unclear whether strategies vary within species across their distributional ranges due to trade‐offs, and whether species can exhibit plasticity in ...
Stuart T. Schwab   +7 more
wiley   +1 more source

Phylogenetic history shapes the composition of floral scents in a specialized pollination mutualism

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3428-3443, June 2026.
Summary Most studies of the chemical ecology of plant–pollinator interactions emphasize the role of pollinator‐mediated selection in shaping floral scent composition. Nevertheless, phylogeny may constrain the metabolic pathways underlying these profiles, thereby influencing the evolutionary trajectory of the emitted signals.
Li Cao   +8 more
wiley   +1 more source

Perfil epidemiológico de la mortalidad por influenza humana A (H1N1) en México Epidemiological profile of mortality due to human influenza A (H1N1) in Mexico

open access: yesSalud Pública de México, 2009
OBJETIVO: Efectuar el análisis epidemiológico de 122 defunciones por influenza A (H1N1) confirmadas por laboratorio y contribuir a mejorar el diagnóstico y atención oportuna de casos.
Germán E Fajardo-Dolci   +8 more
doaj  

Alteraciones motoras, cognitivas y emocionales en la encefalomielitis autoinmune experimental [PDF]

open access: yes, 2017
La esclerosis múltiple (EM) es una enfermedad neuroinflamatoria y desmielinizante del sistema nervioso central (SNC). Actualmente, el modelo animal experimental más adecuado para la EM humana es la encefalomielitis autoinmune experimental (i.e.
Sánchez-Morales, Cristina
core  

Ligand‐induced ubiquitination regulates endocytosis and homeostasis of the ERECTA receptor kinase for stomatal development

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3167-3181, June 2026.
Summary Stomatal patterning on the plant epidermis is regulated by the ERECTA family of leucine‐rich repeat receptor kinases (LRR‐RKs). While ubiquitination has emerged as a key regulatory mechanism for the endocytosis of receptor kinases, the precise molecular connections among ERECTA ubiquitination, endocytosis, and its biological functions remain ...
Liangliang Chen   +5 more
wiley   +1 more source

The abundance of pollen coat small signaling proteins shows limited convergence between independent selfing transitions in Arabidopsis and Capsella

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3460-3474, June 2026.
Summary In plants, a key example of convergence is the repeated evolution of floral traits associated with the transition from outcrossing to self‐fertilization, often resulting in the ‘selfing syndrome’ (e.g. reduced flower size and loss of scent). However, potentially overlooked changes concern the pollen coat, which plays a role in different aspects
Ömer İltaş   +7 more
wiley   +1 more source

Estudio clínico de un brote de peritonitis infecciosa felina [PDF]

open access: yes, 1990
Se describe un brote de peritonitis infecciosa felina (P.L.F) en una comunidad de 6 gatos. La baja prevalencia de la enfermedad, la inespecificidad de sus síntomas y la complejidad del diagnóstico dieron como resultado que sólo se detectase la enfermedad
Martín Castillo, Margarita   +1 more
core  

Somatic genome‐doubling is the most parsimonious route to allopolyploidy

open access: yesNew Phytologist, Volume 250, Issue 5, Page 2845-2851, June 2026.
Summary The origin of a polyploid can hinge on a single errant cell division, a mistake in the cell cycle that leads to genome‐doubling and re‐writes the rules of chromosome pairing and segregation. In plants, the evolutionary significance of these errors is magnified by lack of an early sequestered germline, meaning somatic mutations can be heritable.
Robin Burns   +2 more
wiley   +1 more source

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