Results 71 to 80 of about 856,246 (211)

Using Environmental DNA Sampling for Simultaneous Detection of Hosts and Their Pathogens: A Case Study With the Critically Endangered Frog Genus Atelopus

open access: yesAnimal Conservation, Volume 28, Issue 5, Page 663-674, October 2025.
Environmental DNA is a powerful tool for simultaneous detection of rare species and their pathogens. We confirmed the presence of Atelopus at multiple sampling locations and found that the concentration of the amphibian pathogen Bd in eDNA samples was correlated with stream characteristics and the pathogen load of the amphibian community.
Jamie Voyles   +6 more
wiley   +1 more source

Estimación de Tres Índices de Concentración Económica: Una Aplicación al Sector Bancario en Nicaragua [PDF]

open access: yes, 2016
El artículo presenta tres indicadores para estimar el grado de concentración económica del sector bancario en Nicaragua. Utilizando datos anuales del periodo 2007 al 2015 del Banco Central de Nicaragua.
Canales Salinas, Ricardo José   +1 more
core   +3 more sources

Mejora del equilibrio, atención y concentración después de un programa de entrenamiento exergame en la persona adulta mayor (Balance, attention and concentration improvements following an exergame training program in elderly)

open access: yes, 2017
Objetivo: determinar si la practica aguda y cronica con el videojuego Dance Dance Revolution (DDR®) produce una mejora significativa en la atencion, concentracion, balance estatico y balance dinamico en personas adultas mayores.
Keven Gerard Santamaría   +3 more
semanticscholar   +1 more source

Salty suitors: High larval sodium intake reduces adult lifespan and influences reproductive behaviour in a lepidopteran herbivore

open access: yesEcological Entomology, Volume 50, Issue 5, Page 886-898, October 2025.
Low‐sodium females took significantly longer to start mating than high‐sodium females, but no pairings differed in the duration of copulation. Reproductive outputs, measured by number of clutches, hatching young, adult offspring and pupation time, did not differ across parental sodium pairings.
Maggie C. Vincent   +3 more
wiley   +1 more source

La concentración urbana [PDF]

open access: yes, 1970
La concentración ...
Terán, Fernando de
core   +1 more source

Environmental and human factors shape the trophic ecology of a widespread marine predator

open access: yesJournal of Animal Ecology, Volume 94, Issue 9, Page 1784-1799, September 2025.
Our study reveals how environmental factors and fishing pressure influence swordfish diet, highlighting trophic shifts under future climate scenarios. We provide a novel framework to strengthen our ability to plan for and manage the redistribution of species under global change ensuring that the energetic needs of predators are met.
Elena Fernández‐Corredor   +7 more
wiley   +1 more source

La concentración de inmigrantes en las escuelas españolas [PDF]

open access: yes, 2009
La concentración de alumnos inmigrantes en algunas escuelas genera intensos debates y ha provocado la puesta en marcha de diversas medidas. Este análisis aborda uno de los asuntos que más preocupan a las poblaciones autóctonas en los países receptores
Cebolla Boado, Héctor
core  

Influencia del control del estrés en el rendimiento deportivo: la autoconfianza, la ansiedad y la concentración en deportistas (Influence of stress control in the sports performance: self-confidence, anxiety and concentration in athletes)

open access: yes, 2016
En esta investigacion se realiza un estudio sobre el control del estres en deportistas, utilizando como muestra 100 jugadores de futbol semiprofesionales.
Gloria González Campos   +4 more
semanticscholar   +1 more source

Increasingly conservative N cycling in a wet tropical forest: Litter and stream N concentrations decline over 29 years despite surges from hurricanes

open access: yesJournal of Ecology, Volume 113, Issue 9, Page 2476-2496, September 2025.
Conceptual model integrating short‐ and long‐term responses of N in litterfall and stream water in a wet tropical forest subject to hurricanes. Despite N surges following hurricanes, N cycling becomes more conservative in the absence of frequent hurricanes.
Heather E. Erickson   +3 more
wiley   +1 more source

La concentración espacial de la industria en España: nuevos métodos de medición [PDF]

open access: yes, 2007
Comunicación presentada en el XXXI Congreso de la Asociación Española de Ciencia Regional, Alcalá de Henares, 17-18 de Noviembre de 2005Para el estudio de la concentración industrial en España se han utilizado diversas técnicas cuantitativas que, sin ...
Fuster, Antonio   +2 more
core  

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