Results 81 to 90 of about 52,738 (228)

Niche diversification of Sphagnum in Bolivia [PDF]

open access: yes, 1997
Niche breadth values of Sphagnum species in the páramo and cloud forests of Bolivia are similar to those reported for Sphagnum-dominated peatlands in North America, but niche overlap values are higher for Sphagnum species in Bolivia. The pH, conductivity,
McQueen, Cyrus B.
core  

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

open access: yes, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim   +8 more
core   +2 more sources

Simulidos (Diptera: Simuliidae) presentes entre las vertientes magdalenense y orinocense, en su sector al centro de Colombia

open access: yesCaldasia, 1997
In order to make a comparison between the species of the Simuliidae family present in the east cordillera (east slope vs west slope) and characterize the simuliids from cold, medium and hot climates, the simuliid group of the ICN-MHN collected them in ...
Muñoz de Hoyos Paulina   +1 more
doaj  

OCURRENCIAS DE FÓSILES PALEOZOICOS AL ESTE DE LA PARTE NORTE DE LA CORDILLERA CENTRAL Y DISCUSIÓN SOBRE SU SIGNIFICADO GEOLÓGICO

open access: yesBoletín de Ciencias de la Tierra, 2007
La edad y origen del núcleo metamórfico de la Cordillera Central (Complejo Cajamarca, sensu lato) permanece como uno de los grandes enigmas de la Geología colombiana.
MARIO MORENO SÁNCHEZ   +2 more
doaj  

Oligocene and Miocene continental sedimentation, tectonics, and S-type magmatism in the southeastern Andes of Peru (Crucero basin) : geodynamic implications [PDF]

open access: yes, 1988
Dans le bassin de Crucero, la formation Cayconi est constituée par des dépôts d'origine continentale; des roches volcaniques basiques et acides y sont intercalées.
Carlier, Gabriel   +3 more
core   +1 more source

Esquema de evolución tectonosedimentaria para las Cuencas Cenozoicas de la Cordillera Oriental (22º a 23º lat. S.), Argentina [PDF]

open access: yes, 1997
The structural style of the Eastern Cordillera between 22" and 23" S. L. is the result of stacking of Precambrian sheets. In the Cenozoic, the sedimentary basins were developed under the control of this type of thick skinned structure. The combined study
Rubiolo, D.G.
core   +1 more source

Cuerpos volcánicos ácidos de la parte central de la cordillera Oriental

open access: yesCuadernos de Geografía: Revista Colombiana de Geografía, 1991
El presente artículo tiene como fin, mostrar algunos conceptos generales del volcanismo Terciario de la Cordillera Oriental de Colombia, además, de su ubicación. Es amplia la cantidad de interrogantes y contradicciones; especialmente en la que se refiere
Fernando Helí Romero O.
doaj   +2 more sources

A new species of Hyptis (Labiatae) from Colombia

open access: yesAnales del Jardín Botánico de Madrid, 2010
The shruby new species, Hyptis jacobi Fern. Alonso, only known from the central Chicamocha valley (Department of Santander) in the western slope of the Cordillera Oriental of Colombia, is described and illustrated. This species is related to the Andine H.
José Luis Fernández-Alonso
doaj   +1 more source

PIPER ANDAKIENSIS (PIPERACEAE) UNA ESPECIE NUEVA DE LA VERTIENTE AMAZÓNICA DE LA CORDILLERA ORIENTAL DE COLOMBIA

open access: yesCaldasia, 2015
Se describe e ilustra Piper andakiensis W. Trujillo & Callejas, sp. nov. (Piperaceae) procedente del piedemonte oriental de la cordillera Oriental en la jurisdicción de los departamentos de Caquetá y Putumayo (SE de Colombia).
WILLIAM TRUJILLO-C.   +1 more
doaj   +1 more source

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