Results 31 to 40 of about 2,193 (114)

Genotipificación de la región 3´UTR del gen Nramp1, en ganado Holstein y en criollo Hartón del Valle

open access: yesRevista Colombiana de Ciencias Pecuarias, 2006
En investigaciones sobre respuesta a infecciones por diferentes patógenos intracelulares en humanos y en ratones, el gen Nramp1 se ha descrito como un gen controlador de la resistencia y de la susceptibilidad a algunasenfermedades. En el presente trabajo
Esperanza Trujillo Bravo   +1 more
doaj  

Caracterización serológica y molecular de Brucella spp. en ganaderías bovinas del cantón Guaranda

open access: yesSiembra
Brucelosis es una enfermedad causada por bacterias gramnegativas del género Brucella, provocando principalmente abortos e infertilidad, ocasionando pérdidas económicas significativas, con riesgo para la salud pública, el objetivo es identificar y ...
Willian Conde Castillo   +1 more
doaj   +1 more source

Cryptosporidium hominis Phylogenomic Analysis Reveals Separate Lineages With Continental Segregation

open access: yesFrontiers in Genetics, 2021
Cryptosporidium is a leading cause of waterborne outbreaks globally, and Cryptosporidium hominis and C. parvum are the principal cause of human cryptosporidiosis on the planet.
Felipe Cabarcas   +10 more
doaj   +1 more source

Can induced drying modulate the response of leaf litter decomposition and fungal diversity to wastewater effluents in permanent streams?

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3543-3555, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Watercourses are among the most threatened ecosystems globally and face multiple anthropogenic stressors of different origins and intensities that reduce biodiversity and disrupt ecosystem functioning.
Manuel Pinilla‐Rosa   +6 more
wiley   +1 more source

Ocurrencia y distribución de Bemisia tabaci y Trialeurodes vaporariorum (Hemiptera: Aleyrodidae) en cultivos de tomate en Panamá

open access: yesActa Agronómica
Las principales regiones productoras de tomate a campo abierto y en invernadero en Panamá (provincias de Los Santos, Herrera, Veraguas y Chiriquí) fueron muestreadas para determinar la ocurrencia y distribución de Bemisia tabaci y Trialeurodes ...
José Ángel Herrera Vasquez   +8 more
doaj   +1 more source

COVID‐19 Vaccine Effectiveness Against Hospitalization in Older Adults, VEBIS Hospital Network, Europe, September 2024–May 2025

open access: yesInfluenza and Other Respiratory Viruses, Volume 19, Issue 11, November 2025.
ABSTRACT We estimated COVID‐19 vaccine effectiveness (VE) against PCR‐confirmed SARS‐CoV‐2 hospitalization in patients ≥ 60 years with severe acute respiratory infection, using a multicenter, test‐negative, case–control study across seven sites in six European countries between September 2024 and May 2025.
Madelyn Rojas‐Castro   +37 more
wiley   +1 more source

Impacto de la melaza y el silicato sobre bacterias del género Bacillus y Vibrio en sedimentos acuícolas: Un análisis metagenómico comparativo

open access: yesManglar
La gestión de comunidades microbianas en sistemas acuícolas es fundamental para mantener la sanidad del ambiente y favorecer la producción sostenible.
Rodrigo Saavedra   +2 more
doaj   +1 more source

Histological and Gene Expression Analyses of the Arm and Finger Macroglands of Two Hyloxalus Frogs (Dendrobatidae)

open access: yesMolecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Diana Abondano Almeida   +4 more
wiley   +1 more source

Navigating the seven seas of arthropod collection protocols: Metabarcoding arthropod diversity in a tropical forest

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 10, Page 2395-2407, October 2025.
Abstract Insects and other arthropods represent one of the most diverse groups of life on Earth, with an estimated 70% of species awaiting discovery. Advances in DNA‐based tools have accelerated species discovery, while high‐throughput sequencing has enabled large‐scale biodiversity surveys.
Daniel Souto‐Vilarós   +13 more
wiley   +1 more source

Definición y Evaluación de la dificultad del problema de secuenciación de unidades homogéneas

open access: yesWPOM : Working Papers on Operations Management, 2016
El problema de secuenciación de unidades homogéneas es un caso muy tratado en la literatura donde en la mayor parte de los casos se intenta encontrar procedimientos exactos o heurísticos que permitan calcular en un tiempo computacional reducido una ...
Julien Maheut
doaj   +1 more source

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