Results 11 to 20 of about 72,683 (212)

Linaria sagrensis (Plantaginaceae), a new high mountain species from the SE Iberian Peninsula

open access: yesNordic Journal of Botany, Volume 2023, Issue 9, September 2023., 2023
Linaria sagrensis, from the south‐eastern Iberian Peninsula, is here newly described, illustrated, and compared with its morphologically closest relatives from L. sect. Supinae: L. pruinosa, L. nevadensis, L. glacialis and L. alpina subsp. alpina. The species is characterized by being perennial, entirely glandular‐hairy, with inflorescence dense and ...
Gabriel Blanca   +5 more
wiley   +1 more source

Building blocks of polycentric governance

open access: yesPolicy Studies Journal, Volume 51, Issue 3, Page 475-499, August 2023., 2023
Abstract Success or failure of a polycentric system is a function of complex political and social processes, such as coordination between actors and venues to solve specialized policy problems. Yet there is currently no accepted method for isolating distinct processes of coordination, nor to understand how their variance affects polycentric governance ...
Tiffany H. Morrison   +6 more
wiley   +1 more source

Valorization of different landrace and commercial sorghum (Sorghum bicolor (L.) Moench) straw varieties by anaerobic digestion

open access: yesGCB Bioenergy, Volume 15, Issue 3, Page 332-345, March 2023., 2023
Landrace cultivars presented greater biomass, compactness and grain production. Zahina (landrace cultivar) obtained the highest final methane yield: 413 NL CH4 kg−1 VS. Zahina gigante and Trigomillo (landrace cultivars) achieved the highest methane per biomass production.
David de la Lama‐Calvente   +7 more
wiley   +1 more source

Effects of interactions between anthropogenic stressors and recurring perturbations on ecosystem resilience and collapse

open access: yesConservation Biology, Volume 37, Issue 1, February 2023., 2023
Abstract Insights into declines in ecosystem resilience and their causes and effects can inform preemptive action to avoid ecosystem collapse and loss of biodiversity, ecosystem services, and human well‐being. Empirical studies of ecosystem collapse are rare and hampered by ecosystem complexity, nonlinear and lagged responses, and interactions across ...
David A. Keith   +8 more
wiley   +1 more source

An open-source LED lamp for use with the LI-6800 photosynthesis system. [PDF]

open access: yesAppl Plant Sci
Abstract Premise Controlling light flux density during carbon dioxide assimilation measurements is essential in photosynthesis research. Commercial lamps are expensive and are based on monochromatic light‐emitting diodes (LEDs), which deviate significantly in their spectral distribution compared to sunlight.
Vélez-Ramírez AI   +6 more
europepmc   +2 more sources

Cinética de crecimiento in vitro de Brevibacillus brevis en diferentes medios de cultivo

open access: yesEcosistemas y Recursos Agropecuarios, 2020
El desarrollo de técnicas para la reproducción de rizobacterias benéficas del suelo abre una gama de alternativas para su investigación. El desconocimiento de condiciones químicas y físicas de un medio óptimo para el desarrollo Brevibacillus brevis ...
Uldárico Bigurra-Quintero   +3 more
doaj   +1 more source

Evaluación de lombricompuestos como sustrato de crecimiento de Acer Negundo l. en Río Turbio

open access: yesInformes Científicos y Técnicos (Universidad Nacional de la Patagonia Austral), 2014
Con el fin de buscar una alternativa de uso a la deposición final de residuos biodegradables (RB) se procesaron las corrientes más significativas de RB para Río Turbio mediante el compostaje y vermicompostaje de los mismos; con el objetivo dedeterminar ...
Estefanía Ayelen Cosio   +4 more
doaj   +1 more source

Caracterización de materiales con uso potencial como sustratos en sistemas de cultivo sin suelo

open access: yesCiencia y Tecnología Agropecuaria, 2021
A pesar de su baja capacidad de retención de agua y de cationes, la cascarilla de arroz es el sustrato más utilizado en cultivos sin suelo (CSS) en Colombia; sin embargo, su disponibilidad ha venido disminuyendo debido a la diversificación de su uso ...
Oscar Iván Monsalve Camacho   +2 more
doaj   +1 more source

Eficiencia de la lombriz roja Eisenia Foetida en colonizar sustratos

open access: yesRevista Colombiana de Ciencia Animal Recia, 2014
Con base en camas de bovinaza (BOV), conejaza (CON), porquinaza (POR) y un testigo homogéneo (Mezcla), se midió la capacidad de la lombriz roja en colonizar sustratos en camas verticales.
DIANA MARIA VALENCIA L.   +2 more
doaj   +1 more source

DIVERSIDAD DE CALLIPHORIDAE RECOLECTADAS EN DIFERENTES TEJIDOS HÍGADO Y CORAZÓN DE CERDOS DOMÉSTICOS (Sus scrofa), COMO INDICADOR FORENSE EN ÁREAS BOSCOSAS CONTRASTANTES, EN PANAMÀ

open access: yesTecnociencia, 2023
Se estudiaron las Calliphoridae en dos áreas: un área intervenida y una boscosa, con el propósito de conocer las principales especies del área, que pudieran servir como indicadoras forense.
Percis A. Garcés   +2 more
doaj   +2 more sources

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