Results 71 to 80 of about 679,696 (249)

Devil and angel shifts in collective action: A call for integration and improvements

open access: yesPolicy Studies Journal, Volume 53, Issue 4, Page 1014-1044, November 2025.
Abstract Devil and Angel Shifts are commonly applied concepts in policy research. Using the two concepts in related but different theoretical frameworks – the Advocacy Coalition Framework (ACF) and the Narrative Policy Framework (NPF) – provokes potential challenges of cross‐theoretical dialogue, the establishment of methodological best practices, and ...
Johanna Hornung   +2 more
wiley   +1 more source

Competição de cultivares de mandioca (Manihot esculenta Crantz) no Município de Irará - Bahia. [PDF]

open access: yes, 2015
Com o objetivo de conhecer os melhores cultivares para produção de raíz de mandioca (Manihot esculenta Crantz) no Município de Irará na Bahia, conduziu-se um experimento de competição, testando-se oito cultivares bons produtores da região de Cruz das ...
FERREIRA, J. R., MATTOS, P. L. P.
core  

Microbial drivers of root plasticity

open access: yesNew Phytologist, Volume 248, Issue 1, Page 52-67, October 2025.
Summary Soils are highly heterogeneous and dynamic systems, experiencing a constant flow of plant root exudates and moisture fluctuations that affect nutrient distribution, soil physicochemical properties, and microbial metabolisms. Plant roots adjust their development within the soil matrix (growth, branching, root angle, and anatomical features) by ...
Francisco Dini‐Andreote   +5 more
wiley   +1 more source

Anatomía de Lepidium peruvianum Chacón (Brassicaceae)

open access: yesLilloa, 2004
El objetivo de este trabajo es la caracterización anatómica de las hojas apicales, raíz, hipocótilo y semilla. Se estudió material procedente de Perú. La lámina foliar es pinnatífida a bipinntatifida. Cutícula estriada.
Graciela I. Ponessa   +2 more
doaj  

Universidad I+D: el retorno del Buscón [PDF]

open access: yes, 1992
Análisis de los contactos existentes entre los departamentos universitarios y el mundo empresarial, a raíz del artículo 11 de la Ley de Reforma ...
Martín Pereda, José Antonio
core   +1 more source

ANÁLISES QUÍMICAS E DENSIDADE BÁSICA DA MADEIRA DE RAIZ, FUSTE E GALHO DE BARBATIMÃO [(Stryphnodendron adstringens) Coville] DE BIOMA CERRADO

open access: yes, 2012
The Cerrado region has been a major provider to meet the growing demand of vegetal, animal or agribusiness consumer goods. However, studies on the vegetation of this biome are still incipient and that has been preventing use of Cerrado species, whether ...
Selma Lopes Goulart   +5 more
semanticscholar   +1 more source

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

open access: yesChemistry &Biodiversity, Volume 22, Issue 9, September 2025.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

Biología y regulación molecular de la micorriza arbuscular

open access: yesAIA Avances en Investigación Agropecuaria, 2005
Las micorrizas arbusculares son asociaciones simbióticas formadas entre un amplio rango de especies de plantas y hongos del orden Glomales. El hongo coloniza el apoplasto y células corticales de la raíz.
S. Guzmán-González, J. Farías-Larios
doaj  

Seleção de isolados de Metarhizium anisopliae (Metsch.) sorok. contra a cigarrinha da raiz da cana-de-açúcar Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) em laboratório

open access: yes, 2005
O corte mecanizado da cana-de-acucar resulta num acumulo da palhada depositada no solo, proporcionando temperatura e umidade favoraveis a cigarrinha-da-raiz, Mahanarva fimbriolata (Stal), que provoca serios problemas devido a sua ocorrencia generalizada ...
E. S. Loureiro   +3 more
semanticscholar   +1 more source

Reactive oxygen species act as signaling molecules to control root hair initiation and tip growth

open access: yesNew Phytologist, Volume 247, Issue 5, Page 2042-2048, September 2025.
Summary Root hairs (RHs) increase the surface area of roots, facilitating nutrient and water uptake and plant anchorage. RHs form from root epidermal cells and elongate by polar tip growth. Reactive oxygen species (ROS) have recently been implicated as important signals that drive RH formation and elongation using both genetic and imaging approaches ...
Megan E. Gerber   +2 more
wiley   +1 more source

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