Results 81 to 90 of about 60,449 (229)

Propiedades estructurales y magnéticas de aleaciones Gd0.257 -xTbxFe0.743 obtenidas por aleamiento mecánico

open access: yesRevista de la Facultad de Ciencias, 2017
En el presente trabajo se reporta el estudio de las propiedades estructurales y magnéticas de la composición en forma de polvo de Gd0.257-xTbxFe0.743 con x=0,  0.1285,  0.257,preparados por Aleamiento Mecánico (AM) en atmosfera de argón durante 72 horas ...
Mauricio Galvis-Patiño   +4 more
doaj   +1 more source

Consumo voluntario y ganancia de peso en corderos alimentados con ensilaje de Cenchrus purpureus Schum y Tithonia diversifolia (Hemsl.) A. Gray

open access: yesRevista de Investigación Agraria y Ambiental, 2018
Hoy en día es notable el reconocimiento a los pequeños rumiantes como una opción para la seguridad alimentaria, por lo tanto, se requiere fortalecer programas de investigación tendientes a optimizar las potencialidades productivas de los ovinos mediante ...
Vilma Holguín   +4 more
doaj   +1 more source

Structural Interdependence among Colombian Departments [PDF]

open access: yes
This paper advances on the analysis of the structural interdependence among Colombian departments. The results show that Bogotá has a large influence in the other regional economies through its purchasing power.
Eduardo A. Haddad   +3 more
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A Regional Study of the Colombian Corporate Sector: Differences, Trends and Developments in Different Cities [PDF]

open access: yes
The study presented here looks at the Colombian corporate sector broken down by city. In particular, it studies the eight main cities of the country.
Peter Rowland
core  

A geography of illicit crops (coca leaf) and armed conflict in Colombia [PDF]

open access: yes, 2004
Colombia is currently the world’s largest producer of coca leaf and the principal producer of opium poppies in the Americas; the plants are the basic raw materials used to produce cocaine and heroin.
Díaz, Ana María, Sánchez, Fabio
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Birds of Ibagué - Tolima, Colombia

open access: yesBiota Colombiana, 2007
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Ronald Mauricio Parra-Hernández   +14 more
openaire   +1 more source

Prevalencia de anticuerpos anti-Leptospira spp. en personas con exposición laboral en el departamento del Tolima / Prevalence of anti-Leptospira spp. antibodies among people with occupational exposure in Tolima Department

open access: yesRevista Facultad Nacional de Salud Pública, 2016
Resumen Objetivo: estimar la prevalencia de anticuerpos IgM contra Leptospira spp., mediante el Ensayo de Inmunoabsorción Ligado a Enzimas (elisa), en la población de riesgo laboral de 8 municipios del Tolima.
Blanca L. Guzmán-Barragán   +5 more
doaj   +1 more source

Riesgo suicida en población carcelaria del Tolima, Colombia

open access: yesRevista de la Facultad de Medicina, 2014
Antecedentes. Las prisiones implican situaciones de riesgo, que pueden generar comportamientos suicidas, puesto que la privación de la libertad impacta de manera significativa a los sujetos que experimentan esta condición. Objetivo. Caracterizar el riesgo suicida en población carcelaria masculina del Tolima, Colombia. Materiales y métodos.
Rubio, Luz Adriana   +5 more
openaire   +4 more sources

Toxicity of the herbicide propanil (Propanil Trust® 500ec) to embryos and tadpoles of three anuran species

open access: yesActa Biológica Colombiana, 2016
Propanil is an herbicide used to control weeds that can affect non-target organisms such as anurans. The aim of this study was to assess the lethal (median lethal concentration, LC50) and sublethal effects (delays in development, total length and maximum
Teófila María Triana Velásquez   +2 more
doaj   +1 more source

Community based pedagogy as an eye–opening for pre-service teachers’ initial connections with the school curriculum

open access: yesColombian Applied Linguistics Journal, 2018
Today more than ever it is critical to guide future teachers in the direction of understanding how people participate and constitute social reality as a seedbed to create more significant language curriculums that respond to school students’ needs and ...
Sandra Patricia Lastra   +2 more
doaj   +1 more source

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