Results 11 to 20 of about 804,868 (218)

Meta‐analysis of Red List conservation assessments of Mexican endemic and near endemic tree species shows nearly two thirds of these are threatened

open access: yesPLANTS, PEOPLE, PLANET, Volume 5, Issue 4, Page 581-599, July 2023., 2023
Mexico's extraordinary tree diversity is threatened by the increasing demand for resources because of the tenfold population growth in the last century. The conservation status of trees, and both urban and rural livelihoods, are also negatively affected by agriculture, mining and tourism.
Marie‐Stéphanie Samain   +9 more
wiley   +1 more source

Uneven geographies: ageing and population dynamics in Latvia

open access: yesRegional Science Policy &Practice, Volume 15, Issue 4, Page 893-908, May 2023., 2023
Abstract The twin phenomena of ageing populations and declining populations are profoundly transforming societies and economies in Europe. Driven by decreasing fertility rates and the continuing increased life expectancy, populations have not been ageing uniformly across time and space.
Zaiga Krisjane   +4 more
wiley   +1 more source

A transdisciplinary approach to define and assess wild food plant sustainable foraging in Norway

open access: yesPLANTS, PEOPLE, PLANET, Volume 5, Issue 1, Page 112-122, January 2023., 2023
Foraging wild food plants is sometimes perceived as a conservation threat or, alternatively, as an opportunity for sustainable development. Little is known of how foragers themselves define and ensure sustainable foraging. Here, we collaboratively assessed the activities and motivations of the forager community in Norway in order to achieve a combined ...
Irene Teixidor‐Toneu   +4 more
wiley   +1 more source

Defensa comunitaria y culturas del terror: Crimen organizado y violencia de Estado en comunidades originarias de Guerrero, México

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 27, Issue 4, Page 564-574, December 2022., 2022
Abstract Rich in raw materials, the state of Guerrero, Mexico, is one of the main enclaves of opium production, mineral extraction, and a focus for the multiplication of armed actors in Latin America, which, together with the overlapping of counterinsurgent violence in the past, post‐colonial violence and the militarization of the policies of the so ...
Inés Giménez Delgado
wiley   +1 more source

Data linkage and pain medication in people with cerebral palsy: a cross‐sectional study

open access: yesDevelopmental Medicine &Child Neurology, Volume 63, Issue 9, Page 1085-1092, September 2021., 2021
Aim To explore data linkage and pain medication as a proxy for pain, to assess differences in pain medication between the cerebral palsy (CP) and the general populations, and to identify factors associated with pain medication in CP. Method This cross‐sectional study linked the Northern Ireland CP Register and two administrative health care databases ...
Elena Guiomar García Jalón   +5 more
wiley   +1 more source

La atípica elección presidencial boliviana

open access: yesCuestiones Constitucionales, 2004
El presente estudio de caso pretende, tras un somero análisis del sistema político boliviano a través de su sistema de gobierno, su sistema de partidos y su sistema electoral, centrarse en su atípico sistema electoral presidencial para intentar mesurar ...
Rafael Martínez
doaj   +1 more source

Simulación del Péndulo Doble como Herramienta para la Enseñanza del Caos

open access: yesGóndola, Enseñanza y Aprendizaje de las Ciencias, 2023
En la enseñanza de la física se suelen tener problemas a la hora de explicar un tema, es común que se cometan errores en la explicación o que se den ejemplos que no son adecuados para abordar el tema, de modo que se le complique al estudiante la ...
Daniel Mauricio Martin Rojas
doaj   +1 more source

Realización de un filtro activo de potencia empleando una FPGA [PDF]

open access: yes, 1995
En este artículo se presenta un sistema para compensación de reactiva y eliminación de armónicos en la conexión de una carga a una red eléctrica. El sistema emplea una simple tarjeta que incorpora una FPGA, un microprocesador, una memoria doble puerta y ...
Alarcón, D.   +7 more
core   +1 more source

Modelo de Autentificación de Doble Factor

open access: yesInnovación y Software, 2023
El presente artículo tiene como objetivo principal el desarrollo de un modelo que permita la autentificación de un usuario para el control de accesos mediante el modelo de Autentificación de doble factor.
Anderson Jhanyx Reyes Riveros   +2 more
doaj   +1 more source

Gerencia y Productividad en Sistemas Ganaderos de Doble Propósito.

open access: yesRevista Venezolana de Gerencia, 2009
La ganaderia de doble proposito se maneja con criterios gerenciales que poco se asocian a sus resultados productivos. El objetivo de esta investigacion es explicar esta posible interrelacion en 22 fincas situadas en el Municiapio Sucre del Estado Zulia, seleccionadas por medio de un muestreo aleatorio simple.
Nava Rosillón, Marbelis   +2 more
openaire   +4 more sources

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