Results 11 to 20 of about 75,992 (205)

Improving the physical, mechanical and energetic properties of Quercus spp. wood pellets by adding pine sawdust [PDF]

open access: yesPeerJ, 2020
Background Biomass usage for energy purposes has emerged in response to global energy demands and environmental problems. The large amounts of by-products generated during logging are rarely utilized.
Víctor Daniel Núñez-Retana   +4 more
doaj   +2 more sources

La documentación del archivo secreto Vaticano (Fondo congr. Concilio, Concilia) sobre los concilios provinciales en Latinoamérica (s. XIX)

open access: yesHispania Sacra, 2001
Se recoge información sobre los fondos que hay en los Archivos Vaticanos acerca de concilios provinciales en el siglo XX. El A. menciona documentación sobre los siguientes concilios: Quito (1863, 1869, 1873, 1885); Nueva Granada o Colombia (1868, 1873 ...
Luis Martínez Ferrer
doaj   +1 more source

Systematic revision of the genus Coelotrachelus Schmidt, 1913 (Scarabaeoidea: Scarabaeidae: Aphodiinae) [PDF]

open access: yes, 2009
The species belonging to the genus Coelotrachelus Schmidt, 1913 are redescribed and figured.
Dellacasa, Giovanni   +2 more
core   +2 more sources

‘Yes-in-my-backyard’: Spatial differences in the valuation of forest services and local co-benefits for carbon markets in México [PDF]

open access: yes, 2014
Forests provide many and large benefits, including cost-efficient climate change mitigation. However international carbon markets have not stimulated the demand for forestry offsets.
Lovett, Jon C.   +3 more
core   +6 more sources

Comparison of traditional knowledge about edible plants among young Southern Tepehuans of Durango, Mexico

open access: yesBotan‪ical Sciences, 2021
Background: Traditional ecological knowledge is an important part of biocultural heritage of societies; it has been reported their disappearance and in some cases this phenomenon has been associated with socioeconomic factors such as formal education.
Raúl Ernesto Narváez-Elizondo   +5 more
doaj   +1 more source

Actividad microsísmica en el área de Canatlán, Durango y su relación con la geología regional

open access: yesGeofísica Internacional, 1993
Los hipocentros de 22 microsismos (-0.09≥l.l) que ocurrieron en el área de Canatlán, Durango (24°38'N, 105°W) del 30 de abril al 2 de mayo de 1972 fueron determinados.
Jaime Yamamoto
doaj   +1 more source

Amphibians and reptiles of the state of Durango, Mexico, with comparisons with adjoining states

open access: yesZooKeys, 2018
A summary of the species of amphibians and reptiles of Durango, as well as their geographic distributions, habitat, and conservation status have been compiled.
Julio A. Lemos-Espinal   +4 more
doaj   +3 more sources

Biomass Estimation of Agave durangensis Gentry Using High-Resolution Images in Nombre de Dios, Durango

open access: yesDrones, 2022
The high demand for distilled agave products reduces wild populations. The use of geospatial technologies such as unmanned aerial vehicles (UAVs) offer enormous benefits in spatial and temporal resolution and lower costs than traditional direct field ...
Pablito Marcelo López-Serrano   +5 more
doaj   +1 more source

Thamnophis rufipunctatus [PDF]

open access: yes, 1990
Number of Pages: 2Integrative BiologyGeological ...
Tanner, Wilmer W.
core   +1 more source

Systematic revision of the american taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae) [PDF]

open access: yes, 2011
The American species belonging to the genera Alloblackburneus Bordat and Blackburneus Schmidt (Coleoptera: Scarabaeidae: Aphodiinae) are redescribed and figured. Seven new species are described: Alloblackburneus guadalajarae, A.
Dellacasa, Giovanni   +2 more
core   +1 more source

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