Results 71 to 80 of about 23,933 (167)

Uso de zeolita faujasita para adsorción de iones en aguas residuales municipales

open access: yesTecnología y ciencias del agua, 2018
En este trabajo se sintetizó una zeolita tipo faujasita a partir de aluminio y sílica gel, por el método sol-gel. Dicho procedimiento se realizó por medio de espectroscopía de infrarrojo (FTIR por su nombre en inglés), difracción de rayos X (XRD por su ...
Dayana P. De La Vega   +4 more
doaj   +1 more source

Mapping Peatland Distribution and Quantifying Peatland Below‐Ground Carbon Stocks in Colombia's Eastern Lowlands

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 4, April 2025.
Abstract The extent and distribution of tropical peatlands, and their importance as a vulnerable carbon (C) store, remain poorly quantified. Although large peatland complexes in Peru, the Congo basin, and Southeast Asia have been mapped in detail, information on many other tropical areas is uncertain.
A. Uhde   +9 more
wiley   +1 more source

Contribution to the knowledge of diurnal butterflies (Lepidoptera: Papilionoidea) of the Uruki – El Manantial Community and Ecotourism Nature Reserve, Florencia (Colombia)

open access: yesActualidades Biológicas
In the Neotropics, butterfly diversity is threatened by the loss and transformation of natural habitats, mainly due to deforestation and the expansion of human activities. Diurnal butterflies, recognized as bioindicators of habitat quality, allow for the
Kimberly I. Nieto-Morea   +2 more
doaj   +1 more source

Competencia matemática pensar y razonar: el caso de la razón y la proporción [PDF]

open access: yes, 2012
Este es un avance de una investigación en curso, que se adelanta en el marco de la Maestría en Educación con Énfasis en Didáctica de la Matemática, en la línea de investigación: competencias Matemáticas.
Bornachera, César Augusto   +2 more
core  

An integrative approach to silvopastoral system design: perspectives, potentials and principles

open access: yesNew Zealand Journal of Agricultural Research, Volume 68, Issue 2, Page 218-258, April 2025.
ABSTRACT Silvopastoral systems have complex impacts on a diverse range of outcomes, making it essential to design these systems using an integrative approach to maximise positive impacts to farms. This paper comprises firstly a systematic review of global silvopastoral processes, and secondly stakeholder‐driven synthesis of key opportunities and ...
Thomas H. Mackay‐Smith   +4 more
wiley   +1 more source

lessons learned from monitoring conservation agreements in the Colombian Amazon [PDF]

open access: yes, 2010
Many environmental issues can be attributed to misaligned distribution of the costs of conservation and the benefits of conservation. For instance, biodiversity represents value for the global community, but biodiversity protection imposes various ...
Mora, Margarita   +4 more
core   +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
core  

Análisis comparativo del indicador del desempeño fiscal de los departamentos categoría 4 y 1 de Colombia vigencia 2016 [PDF]

open access: yes, 2018
Trabajo de InvestigaciónUn análisis comparativo del indicador del desempeño fiscal de los departamentos categoría 4 y 1, con el fin de identificar la capacidad de ahorro, inversión, endeudamiento, nivel de ingresos que corresponden a recursos propios ...
Solano-Pérez, Heriberto   +1 more
core  

Economía verde, estado del campo y líneas futuras en el marco del desarrollo sostenible - Green economy: Current trends and future directions in the context of sustainable development

open access: yesSuma de Negocios
RESUMEN - Introducción/objetivo: en el contexto actual, la economía verde ha ganado en importancia como campo de estudio y línea de investigación multidisciplinaria. Por ello, se precisó alcanzar un entendimiento profundo de sus tendencias bibliométricas,
Javier González-Argote   +2 more
doaj   +1 more source

Incidence of agroforestry systems Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg. on physical properties of soil hilly in Caquetá department, Colombia

open access: yesActa Agronómica, 2016
Between April and July 2010, the effects of different agroforestry systems with rubber (Hevea brasiliensis Muell) on the physical properties of soil in hilly area in the municipalities of Belén de los Andaquíes, Florencia and El Doncello (Department of ...
Gelber Rosas Patiño   +2 more
doaj   +1 more source

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