Results 81 to 90 of about 35,712 (241)

Book review: Mining and Quarrying in the Ancient Andes: Sociopolitical, Economic and Symbolic Dimensions

open access: yesJournal of Lithic Studies, 2016
The high Andes is one of the world’s great metallogenic provinces having produced and still providing very significant amounts of copper, silver, tin and historically, of course, gold.
Robert A. F. F.-X. Ixer
doaj   +1 more source

Gaps and bias of the Colombian Andes flora in databases

open access: yes, 2023
El presente documento esta orientado a identificar vacíos de información disponible en bases de datos de la flora andina de Colombia, en terminos geográficos ambientales y taxonómicos y explorar posibles fuentes de informacion que permitan completar la informacion faltante.
openaire   +2 more sources

Measuring the Impact of Armed Conflict on Population Health: A Guide for Researchers

open access: yesPopulation and Development Review, EarlyView.
Abstract The humanitarian impact of armed conflict remains a significant international issue, with an estimated 2 billion people residing in fragile or conflict‐affected settings. Despite increasing attention and study of armed conflict and its impact on human populations, few studies have evaluated the methods necessary to assess such relationships ...
Maya Luetke   +2 more
wiley   +1 more source

Aves de la ladera oriental de los Andes Orientales, alto río Cusiana, Boyacá, Colombia Aves de la ladera oriental de los Andes Orientales, alto río Cusiana, Boyacá, Colombia

open access: yesCaldasia, 1971
The bird collection (52 species and subspecies) treated in this paper was collected in the upper Cusiana River, eastern slope of the Eastern Andes, Departamento de Boyacá, Colombia.
Olivares Antonio
doaj  

Quantitative analysis of channel characteristics of distributive fluvial systems

open access: yesSedimentology, EarlyView.
ABSTRACT Distributive fluvial systems (DFSs) are characterised by a radial distributive channel pattern in planform and dominate modern‐day sedimentary basins. Where aggradation occurs, such as in sedimentary basins, there is increased preservation potential, and therefore, DFSs are hypothesised to constitute a significant portion of the continental ...
Kwetishe Joro Danjuma   +4 more
wiley   +1 more source

Drugs and violence in Colombia: a VECM analysis [PDF]

open access: yes, 2009
It has been widely argued that the production of illegal drugs, particularly cocaine, has financed guerrilla activity in Colombia. This paper uses quarterly time-series data for Colombia 1994-2005 to examine the interaction between legal agricultural ...
Gonzalez, T., Smith, Ron P.
core  

Anti‐Astrotropik — Outer Space, Technology and Resistance in the Tropics

open access: yesSingapore Journal of Tropical Geography, EarlyView.
This paper traces an intellectual and geographical arc of thinking about outer space in the tropics, connecting Peter Redfield's Space in the Tropics: From Convicts to Rockets in French Guiana (2000), Sean T. Mitchell's Constellations of Inequality: Space, Race, and Utopia in Brazil (2017) and Asif Siddiqi's Cosmic Fragments: Dislocation and Discontent
Rob Krawczyk
wiley   +1 more source

Systematics of Marmosa Subgenus Micoureus With Emphasis in ‘rapposa’ Group (Didelphidae, Marmosini): Geographic Variation and Revalidation of M. budini

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Micoureus is the most species‐rich subgenus within the genus Marmosa. Conflicting arrangements regarding the number of species comprising this subgenus have been proposed and the validity of M. budini has been debated. Here, we used an approach integrating genetic and morphological data were conducted to reanalyze the ‘rapposa’ group ...
Maria Clara Santos Ribeiro   +3 more
wiley   +1 more source

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
core  

Collective Action forWatershed Management: Field Experiments in Colombia and Kenya [PDF]

open access: yes
The dilemma of collective action around water use and management involves solving both the problems of provision and appropriation. Cooperation in the provision can be affected by the rival nature of the appropriation and the asymmetries in the access ...
Juan Camilo Cárdenas   +2 more
core   +3 more sources

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