Results 141 to 150 of about 3,941,884 (326)

Sistemas Contextuales Interpretados [PDF]

open access: yes, 2006
El tratamiento lógico de los contextos y del conocimiento han recorrido carriles paralelos. Los contextos comienzan ha ser tomados con atención desde la lógica, a partir de una tradición dedicada a dar cuenta de los problemas que quedaron sin resolver ...
Dahlquist, Manuel, Urtubey, Luis A.
core  

An integrated social and natural sciences case study for the reuse of organic wastes as soil amendments

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Reusing organic waste materials, such as animal manure, as soil amendments reduces water and fertiliser demand, contributing to achieving the Sustainable Development Goals. However, organic wastes may contain contaminants of emerging concern (CECs), posing potential ecosystem and human health risks. Despite the importance of this issue, there is a lack
Felicity C. T. Elder   +7 more
wiley   +1 more source

Produtividade e eficiência biológica de sistemas de produção de gado de corte de ciclo completo no Rio Grande de Sul

open access: yesRevista Brasileira de Zootecnia, 2002
Um modelo estático determinístico, com base em resultados de pesquisas, avaliou por intermédio de simulações, a produtividade e a eficiência biológica de sistemas de ciclo completo de produção de bovinos de corte no Rio Grande do Sul, diferindo na idade ...
Virgínia Beretta   +2 more
doaj  

Eficiencia del policultivo maíz-frijol-calabaza bajo manejo orgánico en la Frailesca, Chiapas, México

open access: yesAgroecosistemas, 2020
La investigación se efectuó durante el secano 2017, con el objetivo de evaluar la eficiencia de los sistemas de cultivo: maíz-frijol, maíz-calabaza, maíz-frijol-calabaza, maíz, frijol y calabaza manejados bajo el enfoque orgánico.
Carlos Ernesto Aguilar Jiménez   +4 more
doaj  

Ethnobotanical insights into the medicinal and food uses of Lamiaceae in the Mediterranean region: A systematic review and meta‐analysis

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
For generations, Mediterranean communities have used Lamiaceae or Labiatae plants like rosemary, thyme or mint to care for their health and to enrich their food. By bringing together dispersed knowledge from across the Mediterranean region, our review revealed the continuing relevance of Lamiaceae while also compiling past uses that may hold future ...
Fuencisla Cáceres   +3 more
wiley   +1 more source

Particularismo político alrededor del mundo [PDF]

open access: yes
(Disponible en idioma inglés únicamente) En este trabajo se presenta un nuevo conjunto de datos sobre sistemas electorales y se bosqueja sus usos potenciales en nuevas investigaciones sobre las conexiones entre los sistemas electorales y los resultados ...
Alejandro Gaviria   +3 more
core  

Biología de Sistemas... ¿qué biología de sistemas? [PDF]

open access: yes, 2011
In December 2010, I had the honor and satisfaction of participating as an invited speaker at the international Scientific Meeting ‘Systems Biology: Bridging the Gaps between Disciplines’ organized in Barcelona by the Spanish Network of Systems Biology ...
Medina, Miguel Ángel
core   +2 more sources

Open‐land‐derived agroforestry and effects of abandonment of management of the main crop on ecosystem services and woody plant diversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Tropical forests are rapidly declining. One promising strategy to reverse the loss of tropical forest is the establishment of agroforestry on open land. We combined interviews with biodiversity surveys to learn general lessons from success and nonsuccess stories of the establishment of open‐land‐derived coffee agroforests in one of the world's ...
Lucas M. Fonzaghi   +3 more
wiley   +1 more source

Snapshots of Motion: A Novel Structural Intermediate Reveals Conserved Dynamics in Archaeal DNA Ligases

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT We present the first x‐ray crystallographic structural evidence of an archaeal DNA ligase showing the AMP covalent adduct together with further cofactor hydrolysis, capturing a transient intermediary in the first step of the ligation reaction, triggered by the pyrophosphate hydrolysis.
A. X. Quintana‐Armas   +3 more
wiley   +1 more source

Sistemas Expertos [PDF]

open access: yes, 1998
Evolución y áreas de aplicación de la inteligencia artificial.
Climent Serrano, Salvador
core  

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