Results 71 to 80 of about 238,274 (228)

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

Flujo de energía, potencia y factor de potencia en circuitos eléctricos no lineales de iluminación y alumbrado [PDF]

open access: yes, 2015
El estudio sistemático de la transmisión de energía eléctrica en sistemas no lineales (no sinusoidales) cobra una primordial importancia por la implantación, cada vez más ex-tendida, de sistemas no lineales de conversión de la energía eléctrica en las ...
Bugallo Siegel, Francisco J.   +2 more
core  

Control para el voltaje de salida de un inversor multinivel de capacitores flotantes

open access: yesIngenius: Revista de Ciencia y Tecnología, 2020
Este artículo presenta el diseño de un controlador mediante la técnica de rechazo activo de perturbaciones para el seguimiento de la trayectoria de referencia para el voltaje de salida de un inversor multinivel de capacitores flotantes.
Beatriz Angélica Aguilar-López   +5 more
doaj   +1 more source

Populism and the Prosecution of Former Democratic Leaders

open access: yesPolitics &Policy, Volume 53, Issue 5, October 2025.
ABSTRACT The rise of populist leaders to power in recent decades has prompted a growing literature on the impacts of populist rule, especially in democracies. Research addressing the effects on key democratic institutions finds the result to be predominantly negative: populist rule undermines several key mechanisms of accountability.
Donna Bahry, Young Hun Kim
wiley   +1 more source

Every Choice Comes With a Consequence: Exploring Unintended Consequences of the COVID‐19 Crisis Governance in Long‐Term Care Facilities in the Netherlands, Finland, and Ireland

open access: yesRisk, Hazards &Crisis in Public Policy, Volume 16, Issue 3, September 2025.
ABSTRACT The COVID‐19 pandemic put tremendous pressure on the long‐term care sector, exacerbating existing financing and staffing difficulties. This study explores the unintended consequences of the COVID‐19 crisis governance in the long‐term care sector.
C. Janssen   +5 more
wiley   +1 more source

Los métodos de programación lineal aplicados al análisis en rotura: el caso de los arcos de fábrica. [PDF]

open access: yes, 2010
En este trabajo se presenta una formulación que permite aplicar los métodos de programación lineal, y en particular el método simplex, al análisis de la estática de rotura de cualesquiera estructuras de barras o elementos lineales, que son considerados ...
Cervera Bravo, Jaime
core  

Influence of sex‐organ positions on pollen transfer and self‐interference in plants with stylar polymorphisms: An experimental approach using three‐dimensional printed flowers

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2526-2538, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Heterostylous plants are defined by the reciprocal positioning of stigmas and anthers in floral morphs—a trait proposed by Darwin to enhance the efficiency of disassortative (intermorph) pollen transfer.
Victoria Ferrero   +3 more
wiley   +1 more source

Comparacion de modelaciones alternativas del tiempo de produccion de un skidder de garra [PDF]

open access: yes, 2005
67 p.Se estimo el tiempo por ciclo de producción de un skidder garra en faenas de tala rasa de Pino radiata D. Don. Dos modelaciones alternativas fueron consideradas: 1) una regresión lineal para el tiempo por ciclo completo; y 2) un conjunto de ...
Aedo Ortiz, Dario (Prof. Guía)   +1 more
core  

Superposición de interacciones causales en la teoría de Phil Dowe [PDF]

open access: yes, 2005
La teoría de causación de Dowe (1992) de cantidades conservadas contenía las bases sobre las que intenta dar cuenta de la causación; reciéntemente en (2000) Dowe presenta la teoría en un estado de desarrollo que permite aplicarla con más detalle a los ...
Miguel, Hernán, Paruelo, Jorge
core   +2 more sources

Trump, Personalism, and US Administrative Capacity

open access: yesPolitics &Policy, Volume 53, Issue 4, August 2025.
ABSTRACT Donald Trump represents an extraordinary degree of personalism in American politics, especially given the traditional power and capacity of the Republican Party and American democracy. A lesson Trump drew from his first term in office is that he needed to better institutionalize mechanisms of personal loyalty to deal with perceived betrayals ...
Donald Moynihan
wiley   +1 more source

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