Results 21 to 30 of about 422,815 (134)

Gestión académica y administrativa de la carrera Ingeniería Agronómica de la UNED y los procesos de investigación y extensión asociados en tiempos de COVID-19

, 2020
Como consecuencia de la declaración de pandemia a nivel mundial y el Decreto Ejecutivo de emergencia sanitaria en todo el territorio de Costa Rica, las actividades académicas presenciales fueron suspendidas y las autoridades implementaron la modalidad de
Laura Sánchez Calvo, Alfonso Rey Corrales, Priscilla Morales Córdoba, Adriana Mora Jiménez, Marco Córdoba Cubillo, Karla Montero Jara, Wagner Peña Cordero, A. Zúñiga Orozco, Karla Mora Rivera, Patricia Oreamuno Fonseca, Adrián José Bonilla Mora, Catalina Vargas-Meneses   +11 more
semanticscholar   +1 more source

Patterns of Z chromosome divergence among Heliconius species highlight the importance of historical demography

Molecular Ecology, Volume 27, Issue 19, Page 3852-3872, October 2018., 2018
Abstract Sex chromosomes are disproportionately involved in reproductive isolation and adaptation. In support of such a “large‐X” effect, genome scans between recently diverged populations and species pairs often identify distinct patterns of divergence on the sex chromosome compared to autosomes.
Steven M. Van Belleghem, Margarita Baquero, Riccardo Papa, Camilo Salazar, W. Owen McMillan, Brian A. Counterman, Chris D. Jiggins, Simon H. Martin   +7 more
wiley   +1 more source

Risk Factors Associated with Dengue Transmission and Spatial Distribution of High Seroprevalence in Schoolchildren from the Urban Area of Medellin, Colombia

Canadian Journal of Infectious Diseases and Medical Microbiology, Volume 2018, Issue 1, 2018., 2018
Dengue fever is an increasing health problem in tropical and subtropical regions. During 2010 in Medellin, the younger population presented a particularly high dengue incidence rate. This study estimated dengue virus (DENV) transmission in schoolchildren (aged 5–19 years) in Medellin from 2010 to 2012.
Leidy Diana Piedrahita, Ivony Y. Agudelo Salas, Katherine Marin, Andrea I. Trujillo, Jorge E. Osorio, Sair Orieta Arboleda-Sanchez, Berta Nelly Restrepo, Rosa Polo   +7 more
wiley   +1 more source

Submicroscopic and Asymptomatic Congenital Infection by Plasmodium vivax or P. falciparum in Colombia: 37 Cases with Placental Histopathology and Cytokine Profile in Maternal and Placental Blood

Journal of Tropical Medicine, Volume 2017, Issue 1, 2017., 2017
Problem. Congenital plasmodial infection (CPI) is a rare event, which has been little studied in Colombia. Objective. To measure the frequency of CPI and to describe the immune and histological characteristics in maternal blood and placentas when CPI occurs. Methodology. A cross‐sectional study was carried out in northwest Colombia. A sample size of 39
Olga María Agudelo-García, Eliana María Arango-Flórez, Jaime Carmona-Fonseca, Shyam Sundar   +3 more
wiley   +1 more source

Incidencia de la movilidad laboral en la satisfacción de los empleados públicos del Instituto Colombiano del Bienestar Familiar [PDF]

, 2017
103 páginas y anexos.Este trabajo parte de las regulaciones que, en materia de movilidad laboral aplica a los empleados públicos de carrera y, busca identificar su incidencia en el nivel de motivación, satisfacción y aspiraciones de los empleados para ...
Arango Álvarez, Olga Lucía, Villegas Duque, Sonia Isabel   +1 more
core   +2 more sources

Generation of Perfect Optical Vortices by Using a Transmission Liquid Crystal Spatial Light Modulator

International Journal of Optics, Volume 2017, Issue 1, 2017., 2017
We have experimentally created perfect optical vortices by the Fourier transformation of holographic masks with combination of axicons and spiral functions, which are displayed on a transmission liquid crystal spatial light modulator. We showed theoretically that the size of the annular vortex in the Fourier plane is independent of the spiral phase ...
Nelson Anaya Carvajal, Cristian H. Acevedo, Yezid Torres Moreno, Stefan Wabnitz   +3 more
wiley   +1 more source

Ingreso a la carrera administrativa

, 1999
El origen de la Carrera Administrativa lo encontramos en Francia en el siglo pasado cuando surgió la preocupación de modernizar el Estado y así obtener un mayor rendimiento de la fuerza laboral, cuyo costo aumentaba día a día, motivo por el ...
Mosquera Delgado, Gicela, Hoyos Salame, Katia   +1 more
openaire   +1 more source

Assessment of Pasteurella multocida A Lipopolysaccharide, as an Adhesin in an In Vitro Model of Rabbit Respiratory Epithelium

Veterinary Medicine International, Volume 2017, Issue 1, 2017., 2017
The role of the P. multocida lipopolysaccharide (LPS) as a putative adhesin during the early stages of infection with this bacterium in the respiratory epithelium of rabbits was investigated. By light microscopy and double enzyme labeling of nasal septa tissues, the amount of bacteria attached to the respiratory epithelium and the amount of LPS present
Carolina Gallego, Stefany Romero, Paula Esquinas, Pilar Patiño, Nhora Martínez, Carlos Iregui, Douglas Morck   +6 more
wiley   +1 more source

La discrecionalidad administrativa y los derechos de carrera del personal activo de los oficiales y suboficiales de las fuerzas militares.

Vis Iuris, 2018
En el sistema jurídico colombiano para la Administración pública, la discrecionalidad es fundamental y con ella se materializan los fines y la función del Estado, preocupa que se legitime la actuación cuando puede darse la desviación y abuso del poder ...
Luis Rafael Vergara Camargo
semanticscholar   +1 more source

La carrera administrativa en las superintendencias [PDF]

, 2013
La temática de la investigación hace parte del derecho administrativo en Colombia, específicamente al área del derecho administrativo laboral, y dentro de éste contexto, desarrolla el sistema específico de carrera administrativa para las ...
Martin Cruz, Wilson Alexis, Sánchez Navarro, Homero   +1 more
core