Results 41 to 50 of about 592,515 (267)

ESTADO DEL CONOCIMIENTO DE LA FLORA DE HEPÁTICAS DE COLOMBIA

Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales
La flora de hepáticas de Colombia es muy rica. Cerca del 60% de las especies de América tropical y una sexta parte de las hepáticas del mundo están presentes en Colombia.
J. Uribe, S. R. Grandstein
semanticscholar   +1 more source

Estado del conocimiento en ecología y conservación de los roquedales de la Argentina: Una revisión

, 2019
Rocky outcrops provide resources that are used by different species and make them extremely important sites for biodiversity conservation. However, these systems remain poorly studied at a global level, and Argentina is not an exception. For this reason,
Dulce S. Gómez Carella, Karina Speziale, Sergio A. Lambertucci   +2 more
semanticscholar   +1 more source

Effect of Deep Eutectic Solvent Composition on the Corrosion Behavior of Electrodeposited Cadmium Coatings on Carbon Steel

International Journal of Electrochemical Science, 2018
Deep eutectic solvents prepared by mixing choline chloride with urea or thiourea (1:2 molar ratio) were employed to evaluate their effects on the formation of cadmium electrodeposits on a reactive electrode composed of carbon steel 1018.
Evelin Gutierrez, Jose A. Rodriguez, Julian Cruz-Borbolla, Yolanda Castrillejo, Enrique Barrado   +4 more
doaj   +1 more source

Estado del conocimiento y amenazas de la tortuga sabanera (Podocnemis vogli, Podocnemididae) en Colombia

, 2017
Podocnemis vogli (Podocnemididae) es una especie de tortuga dulceacuicola, que se distribuye en los Llanos Orientales de Colombia y en Venezuela. Esta especie habita cuerpos de agua lenticos de las sabanas y tiene una dieta principalmente herbivora ...
M. Ortiz-Moreno, J. Rodríguez-Pulido
semanticscholar   +1 more source

Estado actual del conocimiento en rinitis alérgica local

Revista Alergia México, 2020
In recent years, a new phenotype of rhinitis has been described; it is characterized by the local production of specific IgE. There isn’t any evidence of systemic atopy and it has been called local allergic rhinitis. Understanding the involved physiopathological mechanisms and the behavior of this phenotype translates into the development of strategies
Ana Calle, Luis Santamaría, Jorge Sánchez, Ricardo Cardona   +3 more
openaire   +2 more sources

Estado del conocimiento de los ecosistemas de las sabanas inundables en la Orinoquia Colombiana

, 2015
Flooded savannas are 12.5% of the Orinoco basin, a strategic ecosystem of great economical, biological, and ecologic importance. The aim of our study was to update and inform the reader on the state of knowledge of the ecosystems associated to flooded ...
C. Mora-Fernández, Lourdes Peñuela-Recio, Francisco Castro-Lima   +2 more
semanticscholar   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

A roe deer from the Pliocene of Hidalgo, central Mexico [PDF]

Acta Palaeontologica Polonica, 2015
Mexican Pliocene cervids are very poorly known. We report on new fossil material of the roe deer Capreolus constantini recovered from the Pliocene Atotonilco El Grande Formation of Santa María Amajac, Hidalgo (central Mexico).
Eduardo Jiménez-Hidalgo, Victor M. Bravo-Cuevas   +1 more
doaj   +1 more source

COMPORTAMIENTO SÍSMICO DE PUENTES ARCO. UN PANORAMA DEL ESTADO DEL CONOCIMIENTO

Revista de Ingeniería Sísmica, 2003
Los terremotos de Loma Prieta en 1989, de Northridge en 1994, y de Hyogo-ken Nanbu en 1995, han mostrado que los puentes son estructuras sísmicamente vulnerables. Aún cuando los puentes arco no han sufrido daños severos en sismos pasados, ni aún en los eventos mencionados, esto no significa que no puedan sufrirlo en algún futuro sismo de gran ...
José de Jesús Álvarez, Ángel Carlos Aparicio Bengoechea   +1 more
openaire   +3 more sources