Results 41 to 50 of about 1,575,178 (222)

Las fuentes abiertas de información. Un sistema de competencia perfecta [PDF]

open access: yesInteligencia y Seguridad, 2010
A partir de un planteamiento histórico se presenta el reciente origen de las fuentes abiertas de información dentro y fuera de Internet. Asimismo se tratan las cuestiones epistemológicas relativas a la terminología para fijar este concepto. Se contrastan algunas definiciones surgidas recientemente y se establecen los criterios para una definición ...
Martin-de-Santos, Ines   +1 more
openaire   +1 more source

Introduced dung beetles suppress methane emissions from cattle dung and alter the temporal dynamics of greenhouse gas flux Los escarabajos peloteros introducidos suprimen las emisiones de metano del estiércol de ganado y alteran la dinámica temporal del flujo de gases de efecto invernadero Besouros coprófagos introduzidos suprimem as emissões de metano do esterco bovino e alteram a dinâmica temporal do fluxo de gases de efeito estufa

open access: yesEcological Entomology, Volume 51, Issue 5, Page 1025-1035, October 2026.
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley   +2 more
wiley   +1 more source

Panes, hogazas y fogones portátiles. Dos formas cerámicas destinadas a la cocción del pan en Al-Andalus: el hornillo (tannur) y el plato (tabag)

open access: yesLucentum, 1991
En este trabajo pretendemos identificar diversos repertorios cerámicos aparecidos en contextos arqueológicos altomedievales rurales del levante peninsular, con dos sistemas portátiles de coción del pan —el hornillo o tannur y el plato o tabaq ...
Sonia Gutiérrez Lloret
doaj   +1 more source

Impacts of Species Introductions on the Trait Diversity of Interacting Avian Frugivores and Fleshy‐Fruited Plants Depend on Native Trait Diversity

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 10, October 2026.
ABSTRACT Aim The introduction of non‐native species to native ecological communities by humans is a major driver of global biodiversity change. Studying how species introductions influence interacting species is essential to understanding possible functional consequences of global change because biotic interactions are ecologically crucial.
Larissa Nowak   +3 more
wiley   +1 more source

Sistema Nefelometrico Auto-referenciado Inmune a Fuentes de Luz Externas

open access: yesKnE Engineering, 2018
This paper describes the concepts and procedures for the design and implementation of a water turbidity sensor.  It is designed with the purpose of offering us water turbidity readings.  The sensor is designed according to the standard ISO 7027 "The water quality, determination of turbidity", which specifies four methods for the determination of the ...
Vargas, Salvador, Calvo, Jossue
openaire   +4 more sources

Behavioral Response of Arctocephalus australis to Pedestrian Disturbance During the Breeding Season: Implications for Wildlife Tourism Management

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The South American fur seal (Arctocephalus australis) breeds in dense colonies along the Peruvian coast, mostly within protected areas managed by the Servicio Nacional de Áreas Naturales Protegidas por el Estado (SERNANP). To support responsible wildlife tourism near breeding sites, we evaluated the behavioral responses to controlled ...
Maite Arangüena‐Proaño   +2 more
wiley   +1 more source

Selección de configuraciones de despliegue usando Sistemas de Recomendación en Android

open access: yes, 2018
Los sistemas de alta variabilidad son sistemas de software que describen una gran cantidad de configuraciones. Gestionar la variabilidad en estos sistemas es costoso y a menudo difícil por la cantidad de configuraciones que pueden derivarse.
Rodas, Jorge L.   +3 more
core   +1 more source

A synthetic eco‐evolutionary proposal for the conservation of wild relatives of the olive tree

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1904-1924, September 2026.
Societal Impact Statement Crop wild relatives (CWR) are valuable sources of genetic diversity for plant breeding. However, the identification of wild untapped genetic resources (i.e., unexploited in crops) is not always straightforward. We propose a methodology to guide the identification and conservation of these resources that integrates both genetic
Andrés Barea‐Márquez   +6 more
wiley   +1 more source

Sistemas de Control Automático. Tema 2: Análisis de sistemas (curso 2010-2011)

open access: yes, 2011
Presentación tema 2 de sistemas de control automático.
Pomares, Jorge
core   +1 more source

With Knowledge Comes Responsibility: Increasing Conservation Scientists’ Impact in a Time of Global Crises

open access: yesConservation Letters, Volume 19, Issue 5, September/October 2026.
ABSTRACT The dual crises of climate change and biodiversity loss continue despite overwhelming scientific evidence of their impacts on human well‐being and planetary health. Those of us working in the fields of conservation and ecology are acutely aware that current efforts to avert these crises are profoundly inadequate.
Tara G. Martin   +33 more
wiley   +1 more source

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