Results 121 to 130 of about 2,120,082 (314)

ENTRE LA ESPADA Y LA PARED: AGRICULTORES FAMILIARES EN LA ZONA OCCIDENTAL DEL VALLE CENTRAL DE COSTA RICA

open access: yesRevista de Ciencias Sociales, 2022
Este artículo explora las formas de adaptación al estado de la economía agrícola del siglo XXI asumidas por pequeños agricultores familiares en la región occidental del Valle Central de Costa Rica.
Joanna Dreby   +2 more
doaj  

Response to technological change : the international wine industry, 1850–1939. [PDF]

open access: yes
Nuevas tecnologías; Industria del vino; Francia; España; Argelia; Australia; Estados Unidos;
Simpson, James
core  

Seasonal expression of apospory in bahiagrass [PDF]

open access: yes, 2013
This paper was presented at the 22nd International Grassland Congress, Sydney, Australia, 15−19 September 2013. Its publication in Tropical Grasslands – Forrajes Tropicales is the result of a co-publication agreement with the IGC 2013 Organizing ...
Acuña, Carlos Alberto   +4 more
core   +3 more sources

Regulamentação do estrogênio sintético 17α-etinilestradiol em matrizes aquáticas na Europa, Estados Unidos e Brasil

open access: yes, 2016
O estrogenio sintetico 17α-etinilestradiol, principal componente utilizado em formulacoes de contraceptivos orais, tem sido apontado como um dos principais compostos responsaveis por provocar efeitos adversos no sistema endocrino de varias especies.
Danieli Lima da Cunha   +5 more
semanticscholar   +1 more source

The effect of different neutral-detergent-soluble polysaccharides in digestive cynetics in vitro of neutral detergent forrage fiber and the synthesis of microbial protein

open access: yesRevista Científica, 2010
The purposes of this experiment were to compare the pH-independent effects of starch, fructans, and pectins, described in this study as neutral detergent-soluble polysaccharides (NDSP), on forage neutral detergent fiber (NDF) digestion kinetics and ...
Oswaldo Rosendo   +3 more
doaj  

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