Results 121 to 130 of about 3,055,346 (291)

Visiones alternas de ciudad: Complejidad, sostenibilidad y cotidianidad

Bitácora Urbano Territorial, 2012
Las visiones alternas de ciudad han sido muy importantes desde la aparición de las ciencias sociales en la investigación y discusión sobre lo urbano. En este momento y desde hace una década asistimos a la emergencia de las ciencias de la complejidad y de
Iliana Hernandez Garcia, Jaime Hernandez Garcia, Raul Niño Bernal   +2 more
doaj  

Particularismo político alrededor del mundo [PDF]

(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, Ernesto H. Stein, Jessica Seddon Wallack, Ugo Panizza   +3 more
core  

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima, Hidehito Okada, Sadatomo Hisamatsu, Kenji Suetsugu   +3 more
wiley   +1 more source

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

PLANTS, PEOPLE, PLANET, EarlyView.
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, Guillaume Besnard, Miguel González Ximénez‐Embún, Carlos García‐Verdugo, Concepción M. Diez, José Carlos Pérez‐Girón, Rafael Rubio de Casas   +6 more
wiley   +1 more source

Sistema [PDF]

, 1982
Los términos "Modelo" y "Sistema" son dos temas escritos por Manuel Martín Serrano para la docencia universitaria. De cada uno de ellos, se ha depositado en E-Prints la versión más difundida. Proporcionan conceptos y categorías que hacen posible la aplicación de las metodologías sistémicas en la investigación de las ciencias sociales.
  +4 more sources

Perspectives and behaviors surrounding planting practices in North America inform genetic conservation realities for American ginseng (Panax quinquefolius)

PLANTS, PEOPLE, PLANET, EarlyView.
American ginseng is a shade‐obligate, North American medicinal plant that is widely traded and used internationally. To meet global demand, ginseng is cultivated in forest farms in the Appalachian region of the USA and field‐based artificial shade farms in two regions: Ontario, Canada and Wisconsin, USA. We conducted social research leveraging in‐depth
Rachel E. Palkovitz, Mary K. Shenk, Eric P. Burkhart   +2 more
wiley   +1 more source

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

, 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

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

Proteins: 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, E. Flores‐Hernández, C. Cardona‐Félix, E. Rudiño‐Piñera   +3 more
wiley   +1 more source

Diseño de circuitos de control para válvulas proporcionales en sistemas hidráulicos [PDF]

, 2012
Este artículo trata sobre los aspectos relacionados a la técnica de control electrónico de las válvulas proporcionales utilizadas en maquinaria con sistemas hidráulicos inventadas en los años 30.
Morales Hernández, Rigoberto Alfonso
core  

Susceptibility of Phthorimaea absoluta (Meyrick) (Lepidoptera: Gelechiidae) to novel and established insecticides in Brazil: resistance survey, baseline, and implications for management

Pest Management Science, EarlyView.
Baseline susceptibility of Phthorimaea absoluta to novel insecticides isocycloseram and tolfenpyrad was established in Brazil. Diagnostic doses were proposed for early resistance detection. Early tolfenpyrad tolerance and abamectin‐driven cross‐tolerance to isocycloseram via oxidases highlight cross‐resistance risks, emphasizing the need for routine ...
Vitor Quintela, Teófilo P Langa, José VCR Dantas, Marcos de Oliveira, Herbert AA Siqueira   +4 more
wiley   +1 more source