Results 11 to 20 of about 77,815 (254)

Distribución de Stenocercus guentheri (Sauria: Iguanidae) en el sur de los Andes de Colombia [PDF]

open access: yesCaldasia, 1993
The morphology of a population of Stenocercus guentherifrom Colombia is described in detail and compared to information from ecuadorean specimens. The range of the species is extended northward to include the colombian departments (provinces) of Nariño and Cauca along the Andes.
Castro Herrera, Fernando   +1 more
openaire   +3 more sources

PAULLINIA TRIFOLIOLATA (SAPINDACEAE) UNA NUEVA ESPECIE DE LOS ANDES DE COLOMBIA

open access: yesCaldasia, 2004
Se describe e ilustra Paullinia trifoliolata, una nueva especie de los Andes deCundinamarca (Colombia). La nueva especie se contrasta con Paullinia turbacensis,su presunto pariente más cercano.
Obando, Sandra   +2 more
openaire   +4 more sources

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 [PDF]

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. In the introduction are given geographical details of the proper area where the material was secured.
Olivares Antonio, Olivares, Antonio
openaire   +3 more sources

Los Chibchas: adaptación y diversidad en los Andes orientales de Colombia [PDF]

open access: yes, 2001
Los Andes orientales de Colombia constituyen uno de los ecosistemas mejor definidos en la geografía colombiana, tanto por su delimitación fisiográfica como por el entorno cultural que albergó en épocas prehispánicas en el transcurso de varios milenios. / Contenido.
Correa Rubio, François   +7 more
openaire   +2 more sources

Synthesis, Characterization, and Anti-Plasmodium falciparum Activity of a New Copper(II) Complex Containing 2-(Tert-Butoxy)-6-(1H-imidazol-1-yl)pyridine. [PDF]

open access: yesChemMedChem
The graphical abstract illustrates the formation of a Cu(II) complex from azole‐based ligand, highlighting metal–ligand synergy. The resulting coordination compound acts as a bioactive entity against Plasmodium, where metal coordination enhances antiparasitic activity, outperforming the free ligand and demonstrating its potential as an antimalarial ...
Patiño-Cubides A   +6 more
europepmc   +2 more sources

Co(II), Cu(II), and Ni(II) Coordination Complexes: Synthesis, Characterization, Experimental, and Computational Study on Potential Antiplasmodial Activity. [PDF]

open access: yesChemMedChem
Four isostructural complexes (C1–C4) derived from 2‐(tert‐butoxy)‐6‐(1H‐imidazol‐1‐yl)pyridine with axial halides exhibit octahedral trans M(L)4X2 geometries, confirmed by X‐ray diffraction. They feature a discrete 1,6M7−1 topology, identified using ToposPro analysis.
Ezenarro-Salcedo D   +10 more
europepmc   +2 more sources

Especies Nuevas de Piperaceae de los Andes al Sur de Colombia

open access: yesNovon, 1997
Three new species of Piperaceae, Pe- peromia alwynii, Piper curvinervium, and Piper dol- ichostylum, from the southern Andes region of Co- lombia, are described and illustrated, and their relationships, geographical distribution, habitat, and ecology are discussed.
Betancur, J, Callejas-Posada, Ricardo
openaire   +2 more sources

Evaluating the Relationship Between the Area and Latitude of Large Igneous Provinces and Earth's Long‐Term Climate State

open access: yesGeophysical Monograph Series, Page 153-168., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Yuem Park   +3 more
wiley  

+1 more source

Epiphytic diversity patterns in lowland and subandean forests

open access: yesColombia Forestal, 2012
Tropical rainforests are the most diverse ecosystems on the planet. Although many theories have been proposed to explain their richness we currently know little about their relative importance.
Luis Francisco Henao-Diaz   +4 more
doaj   +1 more source

Procesos de reconfiguración identitaria en hombres que son los principales cuidadores de sus hijas e hijos

open access: yesRevista de Estudios Sociales, 2022
The role distribution in couples in which fathers are the primary caregivers for their children while mothers are the primary breadwinners, typically transgresses traditional gender norms and challenges the identities of men and women.
María Constanza González Viveros   +2 more
doaj   +1 more source

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