Results 51 to 60 of about 842,680 (234)

How much biotic nativeness matters across human demographic groups

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley   +1 more source

Pre-ingreso escolar

open access: yes, 1942
“Al llegar nosotros, después de largas y alegres vacaciones a la ciudad capital y pasar por nuestro claustro, tal vez, en un primer pensamiento, sintamos en el espíritu cierta manifiesta pereza por volver a las aulas...”
openaire   +2 more sources

Elephant barrier behaviors in response to conflict mitigation fences

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Human–wildlife conflict is a major conservation issue, particularly in lower income countries, where it affects marginalized people and leads to the extirpation of threatened species. Managers increasingly use fences to reduce this conflict but lack evidence on the effectiveness of these barriers, especially on whether this reduces the number ...
Dominique Gonçalves   +2 more
wiley   +1 more source

El contexto de vulnerabilidad social de pescadores ribereños en la península de Yucatán

open access: yesSociedad y Ambiente, 2014
En este trabajo se analiza el contexto social y económico en el que se lleva a cabo la pesca ribereña en la península de Yucatán. Se utiliza el marco conceptual de vulnerabilidad, amenazas y riesgo para explicar situaciones a las que se enfrentan los ...
Cynthia Gutiérrez Pérez
doaj   +1 more source

NMR‐Based Structural Analysis of Highly Substituted Pyridines From Kondrat'eva Aza‐Diels–Alder Cycloadditions

open access: yesMagnetic Resonance in Chemistry, Volume 64, Issue 3, Page 324-332, March 2026.
We report the results from a kinetic and mechanistic investigation of an inverse‐electron‐demand Diels–Alder (IEDDA) cycloaddition involving an oxazole‐type diene synthesized via an Ugi–Zhu multicomponent reaction (UZ‐3CR). ABSTRACT Pyridines are a crucial class of heterocycles with widespread applications in natural products, pharmaceuticals, and ...
Galdina V. Suárez‐Moreno   +6 more
wiley   +1 more source

Práticas de governança eletrônica e eficiência na utilização das receitas: uma análise nos estados brasileiros Prácticas de gobierno electrónico y el uso eficiente de los ingresos: un análisis en los estados brasileños Electronic governance practices and efficiency in the use of the revenue: an analysis on the Brazilian states

open access: yesRevista de Administração Pública, 2013
A pesquisa objetiva analisar as práticas de governança eletrônica dos estados brasileiros e sua correlação com a eficiência na utilização das receitas. Pesquisa descritiva foi conduzida por meio de análise documental e abordagem quantitativa.
Ilse Maria Beuren   +2 more
doaj  

Valoración socioeconómica del impacto de la variabilidad climática sobre la pesca artesanal en Costa Rica

open access: yesUniciencia, 2018
La mayor cantidad de pesca en Costa Rica la realiza la flota artesanal con el 81,41% del total en el periodo 1990-2009. Muchas son las presiones que esta flota debe afrontar para desarrollar su actividad.
Mary-Luz Moreno-Díaz, Eric J. Alfaro
doaj   +1 more source

Ingresos Digitales - Impuestos Análogos

open access: yesEconomía y Negocios, 2020
A mediados de 2019 en Japón, el G20 acordó crear un impuesto digital (cuyo borrador sería debatido los primeros meses de 2020, e inclusive desde esta fecha ya se pretende empezar a cambiar la legislación en algunos países), dirigido a las grandes empresas cuyas operaciones se basan principalmente en el internet para generar enormes ingresos como ...
openaire   +3 more sources

Wildland–urban interface expansion: Towards comprehensive planning processes

open access: yesPeople and Nature, Volume 8, Issue 3, Page 754-766, March 2026.
Abstract Wildland–urban interface (WUI) expansion is accelerating in numerous regions around the world due to increasing amenity‐led migration processes, defined as the movement of people seeking higher environmental quality. While WUI areas are complex social–ecological systems requiring holistic planning and management, they are usually approached ...
Clara Mosso   +2 more
wiley   +1 more source

Jugando a la violencia en Colombia: el dilema de pagar o no pagar Playing at violence in Colombia: the dilemma of to play or not to Play

open access: yesCuadernos de Economía, 1996
¿Cuál será el comportamiento de equilibrio de los agentes de más altos ante las amenzas de la subversión a sus vidas y a su patrimonio? En el contexto de un modelo de teoría de juegos, una de las dos estrategias que se discuten, pagar el "contrato de ...
Salazar Boris, Castillo María del Pilar
doaj  

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