Results 151 to 160 of about 3,407,736 (336)

Educació i valors

open access: yesTemps d'Educació, 1989
Quan ens plantegem el tema de les relacions entre l'educació i els valors -utilitzant, com fem habitualment, el terme 'valors' en un sentit més ampli i més planer que en l'axiologia- podem referint-nos a una varietat de temàtiques prou diferents entre si, bo i que probablement serven també lligams mutus prou clars.
openaire   +3 more sources

Transaccións exentas para emisores de títulos-valores [PDF]

open access: yes, 2016
Traballo fin de mestrado (UDC.DER). Asesoramento Xurídico Empresarial.
Domínguez Varela, Victoria
core   +1 more source

Closing the nutrient loop between urban and rural areas: a case study analyzing the technical potential of recycling fertilizers from urban biorefineries

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The world's population is expected to grow rapidly, with the vast majority of people living in urban areas. Closing nutrient loops is therefore increasingly important for food security and environmental stability. In Germany however, the current treatment of organic and green waste and sewage sludge (derived from wastewater) includes ...
Marielle Trenkner   +7 more
wiley   +1 more source

New solvents for extracting gallic acid from chestnut shells: deep eutectic solvents

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Chestnut (Castanea sativa Mill.) shell, a byproduct of chestnut processing, is a valuable source of phenolic compounds that have a range of industrial applications. This study investigated the optimization of gallic acid extraction from the outer shell of the chestnut using ultrasound‐assisted extraction (UAE) and deep eutectic solvents (DES).
Ayben Kilic‐Pekgözlü   +3 more
wiley   +1 more source

Exploiting agricultural residues for sustainable bioconversion: production of cellulolytic and lignin‐degrading enzymes

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Agroindustrial activity generates substantial waste during harvesting and processing. This study investigated the potential use of sugarcane bagasse, corn cob husk, and wheat bran as substrates for enzyme production by Aspergillus niger and Ceriporiopsis subvermispora. Aspergillus niger and C. subvermispora exhibited comparable filter paperase
Arianne Tairyne de Souza   +4 more
wiley   +1 more source

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