Results 111 to 120 of about 1,735,623 (275)

Solvent-free mechanosynthesis of Schiff bases derived from thiadiazole with potential application in sensing ionic species and NLO applications

open access: yesChemical Physics Impact
In this work, we report the solvent-free mechanosynthesis of three Schiff bases (SBs) derived from 1,3,4-thiadiazole covalently bonded to indole (Th-In), quinoline (Th-Qn) and triphenylamine (Th-TPA) groups.
C.U. Vite-Morales   +7 more
doaj   +1 more source

Retención de conocimiento en las agencias espaciales [PDF]

open access: yes, 2018
Este trabajo de fin de máster revisa desde una perspectiva eminentemente práctica, una de las actividades clave de la gestión del conocimiento en el ámbito de las agencias espaciales: la retención del conocimiento.
Fresneda Pacheco, Alfonso
core  

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade   +7 more
wiley   +1 more source

Gestión académica y valor público del conocimiento [PDF]

open access: yes, 2008
La ponencia toma como punto de partida el nuevo contrato entre la universidad, la sociedad y el estado formulado a mediados de los noventa como base una formulación política para el mejoramiento del sistema.
Ferré, Norberto G.
core  

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

open access: yesJournal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea   +15 more
wiley   +1 more source

Operative Improvement in the Naphtha Catalytic Reforming Process to Reduce the Environmental Impact of Benzene Fugitive Emissions from Gasoline

open access: yesChemEngineering
A challenge for the oil refinement industry is the production of high-octane gasoline with a low benzene content. This work reports the calculation of the atmospheric benzene emissions generated from gasoline storage, transfer, and transport operations ...
Fabiola Velázquez-Alonso   +9 more
doaj   +1 more source

Conocimiento de los padres sobre la alimentación en niños en edad escolar [PDF]

open access: yes, 2014
Este trabajo se plantea investigar qué relación existe entre el conocimiento de los padres sobre la alimentación y el estado nutricional de los niños de 6 a 13 años de la localidad de Villa de la Quebrada de la provincia de San Luis, en el año 2013.
Baracco, Adriana del Valle   +2 more
core  

Successful Application of the Mast Cell Activation Test in Immediate Hypersensitivity to Amoxicillin

open access: yesAllergy, EarlyView.
This study included 28 amoxicillin‐allergic patients and 11 healthy exposed controls. Mast cells were differentiated from CD34+ progenitors over 8 weeks using cytokine cocktails. The mast cell activation test involved sensitization with patient or control sera and stimulation with free amoxicillin or G4/G5‐AXO dendrimers with successfully activated ...
Jose A. Céspedes   +11 more
wiley   +1 more source

Transitional analysis for multi-objective operative improvement of reformate quality and hydrogen production from a naphtha catalytic reforming process

open access: yesHeliyon
The hydrogen produced (H2) in the Catalytic Naphtha Reforming (CNR) is important in quantity and quality, for the feedback of the process and for supplying the hydrotreatment processes in current refineries.
F. Velázquez-Alonso   +7 more
doaj   +1 more source

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