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Now showing items 6069-6088 of 13352
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Groundwater flow modeling using iMOD for Barva and Colima aquifers in the Central Valley of Costa Rica: validation of a conceptual model using tracer data
(Universidad Nacional de Salta, 2018)A stationary numerical model of groundwater flow was developed using iMOD to better understand the recharge processes within Barva and Colima aquifers (BCS), located in the northwestern region of the Central Valley of Costa ... -
Groundwater recharge mechanisms inferred from isoscapes in a complex tropical mountainous region
(AGU Publications, 2016-05-23)Stable isotope variations and groundwater recharge mechanisms remain poorly understood across the tropics, particularly in Central America. Here stable isotopes (δ18O and δ2H) in groundwater, surface water, and rainfall ... -
Growth and alkaline digestive proteases activity of Parachromis dovii larvae fed live prey and formulated diets with different protein sources
(Universidad Técnica de Manabí (Ecuador), 2022-07-16)Parachromis dovii is a carnivorous cichlid fish from Central America, which easily accepts formulated feeds since exogenous feeding starts; however, its larval growth is lower than that obtained using live food. For this ... -
Growth and feed utilization of Dow cichlid (Cichlasoma dovii) larvae fed Artemia nauplii
(Universidad de Costa Rica (Costa Rica), 1995-12-01)Growth and feed utilization of Dow cichlid larvae (Cichlasoma dovii) fed with Artemia nauplii during the [lISt 12 days are assessed and compared with the growth of the larvae of the jaguar cichlid (Cichlasoma managuense). Growth ... -
Growth and fillet yield in recirculation systems of Lobotes pacificus (Perciformes: Lobotidae), a species with aquaculture potential
(Universidad Nacional (Costa Rica), 2019-07)The genus Lobotes extends across tropical and subtropical areas of oceans such as the Atlantic and the Pacific; it is extracted in artisanal fisheries, and its aquaculture production technology is still under investigation. ... -
Growth and hydrogen production by three Chlamydomonas strains cultivated in a commercial fertilizer
(Elsevier Ltd, 2019-04-19)In the present investigation, we report the growth and hydrogen production of two wild type Chlamydomonas reinhardtii strains isolated from a tropical oxidation pond in Costa Rica. The performance of these two new isolates ... -
Growth and photosynthetic performance of five tree seedlings species in response to natural light regimes from the Central Pacific of Costa Rica
(Universidad de Costa Rica, 2013)Growth and photosynthetic performance of five seedlings of tree species in response to natural light regimes in the Central Pacific of Costa Rica. Environmental heterogeneity mostly dominated by differing light regimes ... -
Growth of Jaguar Cichlid (Cichlasoma managuense) juveniles at different oxygen levels
(Universidad Nacional, Costa Rica, 1992-01-01)The dependence of growth on the dissolved oxygen level was analyzed un juveniles of the guapote tigre, Cichlasoma managuense, in a recirculated system. The guapote tigre is relatively tolerant to low oxygen levels, averaging ... -
Growth of Mantled Howler Groups in a Regenerating Costa Rican Dry Forest
(Universidad Nacional, Costa Rica., 1998)We examined population dynamics in mantled howlers (Alouatta palliata palliata) in a regenerating tropical dry forest in Santa Rosa National Park (SRNP), Costa Rica. The population has grown at a rate of about 7% per annum ... -
Growth of Oreochromis aureus fed with diets containing graded levels of coffee pulp and reared in two culture systems
(Aquaculture vol.217 no.1-4 275-283 2003, 2003)A study was conducted to compare growth and feed utilization of Oreochromis aureus fed graded levels of coffee pulp (CoP) and reared in aquaria or in pens. Diets contained 0, 130, 260 and 390 g kg 1 of oven-dried CoP. ... -
Growth of pacific snook (Centropomus nigrescens) juveniles at different salinities
(Universidad Nacional (Costa Rica), 1995-09-21)Se evaluó el crecimiento de juveniles del róbalo del Pacífico, Centropomus nigrescens con salinidades de 0, 18 y 36 ppt. No hubo diferencias estadísticas significativas ni en el crecimiento ni en el factor de conversión. ... -
Growth performance of Colossoma macropomum (Cuvier) juveniles at different feed rations
(Wiley & Sons, 1992)Growth performance, feed utilization and changes in body composition of Colossoma macropomum (Cuvier) juveniles — in the weight range 2 to 200 g — fed an artificial high protein diet, have been analysed against feed ... -
Growth, feed utilization and nutrient digestibility in tilapia fingerlings (Oreochromis aureus Steindachner) fed diets containing bacteria-treated coffee pulp
(Universidad Nacional, Costa Rica, 2002)The effectiveness of bacteria treated-coffee pulp (BT-CoP) in fish diets was evaluated in a feeding trial with Oreochromis aureus (Steindachner) fingerlings. Five diets were formulated to contain 0%, 6%, 12%, 18% and 24% ... -
El grupo de teatro Kärätiä explora en el empoderamiento femenino y ahora buscará integrar a comunidades a través de talleres
(El Guapileño, el periódico de la provincia de Limón, 2020)Entrevista profesor de teatro Juan Manuel Blanco Umaña del Campus Sarapiquí UNA -
Los grupos de apoyo a la lactancia materna y su contribución al capital social de mujeres en Purral de Goicoechea, Costa Rica
(Universidad Nacional (Costa Rica). Escuela de Ciencias Agrarias. Maestría en Desarrollo Comunitario Sustentable, 2017)Analiza las sesiones del grupo de apoyo a la lactancia materna llevadas a cabo en Purral de Goicoechea, a partir de la observación y seguimiento de las dinámicas que se establecieron entre las participantes, y la ... -
Grupos de apoyo con pacientes cardiópatas para el fortalecimiento del apoyo social y la adherencia al tratamiento: Una experiencia piloto en el Centro Nacional de Rehabilitación (CENARE)”
(Universidad Nacional, Costa Rica, 2022-04-07)El objetivo del presente proyecto de graduación para alcanzar el grado de Licenciatura en Psicología, fue potenciar el apoyo social en pacientes cardiópatas de fase II que asistieron al programa de Rehabilitación Cardiaca ... -
Grupos sociales y el proceso de enseñanza aprendizaje de las ciencias en secundaria
(Red Durango de Investigadores Educativos, 2016)Con la intención de hacer un acercamiento a la forma en que pueden afectar los grupos sociales al proceso de aprendizaje de las ciencias, se realizó una investigación con el aporte de 26 estudiantes de tercer año de la ... -
GTPases of the Rho subfamily are required for Brucella abortus internalization in nonprofessional phagocytes
(The American Society for Biochemistry and Molecular Biology, Inc., 2001-11-30)Members of the genus Brucella are intracellular -Proteobacteria responsible for brucellosis, a chronic disease of humans and animals. Little is known about Brucella virulence mechanisms, but the abilities of these ... -
Guatemala cafetalera: tierra, trabajo y política
(Editorial Universidad Nacional, 1994-07-01)Estudio de los trabajos sobre historia guatemalteca, el complejo y contratictorio proceso histórico, desde la lucha política entre liberales y conservadores, hasta el proceso de privatización mediante la eliminación del ... -
Guatemala: cultura de oposición, resistencia y liberación
(Editorial de la Universidad Nacional, 1991-12)No constituye nada nuevo el afirmar que en los pueblos latinoamericanos, uno de los medios más extendidos de resistencia frente a la conquista y colonización europeas lo constituyó el refugio de los pueblos autóctonos en ...