Search results for "Costa Rica"
showing 10 items of 32 documents
A new genus and species of asteraceae-inhabiting aphid (hemiptera: aphididae) from Costa Rica and Mexico
2013
P. 323-331 Ucrimyzus villalobosi Mier Durante & Pérez Hidalgo gen. n., sp. n. (Hemiptera: Aphididae: Macrosiphini) are described from apterous and alate viviparous females collected on species of genera Bidens, Schkuhria, Senecio and Stevia (Asteraceae: Asteroideae) in Costa Rica and Mexico. Principal components analysis (PCA) was done to verify that the studied aphids belong to a single species regardless of their geographical origin or host plant. Molecular analyses were carried out on the sequences of a fragment of the mitochondrial gene encoding for cytochrome c oxidase subunit 1 (COI) and of a fragment of the nuclear gene encoding elongation factor 1α (EF1α). The taxonomic discussion t…
Giurisprudenza costituzionale e rapporti Stato-Chiesa in Costa Rica.
2013
SOMMARIO: 1. Introduzione. La clausola confessionista nella valutazione attuale della Sala Constitucional della Corte suprema. 2. A proposito del finanziamento pubblico del culto cattolico. 3. Ragionevolezza e legittimità del sistema matrimoniale in vigore. 4. Incostituzionalità della norma sull’idoneità degli insegnanti di religione cattolica. 5. Verso una nuova configurazione degli attuali rapporti.
Intercultural competence needs of exchange students coming to or going abroad from the university of Costa Rica
2012
Internationalization of higher education is a process in constant development that has occurred over many years. It involves efforts of the entire academic community and the implementation of diverse strategies. Focusing on the academic exchange, the less developed regions face certain particularities that limit them. The following study portraits this situation from the perspective of intercultural competence, in the context of one Latin American University, the University of Costa Rica (UCR). It explores the intercultural competence needs of exchange students, whose common ground is the UCR. The population considered in the study are regular students of the University of Costa Rica, who p…
Short-period volcanic gas precursors to phreatic eruptions: Insights from Poás Volcano, Costa Rica
2016
Texto completo del documento Volcanic eruptions involving interaction with water are amongst the most violent and unpredictable geologic phenomena on Earth. Phreatic eruptions are exceptionally difficult to forecast by traditional geophysical techniques. Here we report on short-term precursory variations in gas emissions related to phreatic blasts at Poás volcano, Costa Rica, as measured with an in situ multiple gas analyzer that was deployed at the edge of the erupting lake. Gas emitted from this hyper-acid crater lake approaches magmatic values of SO2/CO21–6 days prior to eruption. The SO2flux derived from magmatic degassing through the lake is measureable by differential optical absorpti…
Turmoil at Turrialba Volcano (Costa Rica): Degassing and eruptive processes inferred from high-frequency gas monitoring
2016
OVSICORI Eruptive activity at Turrialba Volcano (Costa Rica) has escalated significantly since 2014, causing airport and school closures in the capital city of San José. Whether or not new magma is involved in the current unrest seems probable but remains a matter of debate as ash deposits are dominated by hydrothermal material. Here we use high‐frequency gas monitoring to track the behavior of the volcano between 2014 and 2015 and to decipher magmatic versus hydrothermal contributions to the eruptions. Pulses of deeply derived CO2‐rich gas (CO2/Stotal > 4.5) precede explosive activity, providing a clear precursor to eruptive periods that occurs up to 2 weeks before eruptions, which are acc…
Aprenentatge ètico-moral en la primera infantesa. Una experiència a Costa Rica
2019
espanolEste articulo muestra los resultados mas relevantes de una experiencia investigativa que se realizo en Costa Rica en torno a la contextualizacion del modelo de aprendizaje etico-moral dentro de la cultura escolar y familiar. Desde un paradigma socio-critico, el estudio responde a una investigacionaccion tecnica. En ella participaron directores, docentes, padres y madres de familia, asi como ninos (as) de 5-6 anos de edad, procedentes de tres instituciones educativas de la Region Occidental de este pais. Mediante seminarios, conversatorios, entrevistas semiestructuradas, grabaciones de audio y fotografias se recogieron evidencias en torno a una serie de incidentes criticos derivados d…
Compensación ambiental en Costa Rica: Aplicación del método hábitat/hectárea como alternativa para la estimación de áreas a indemnizar
2022
Para proyectos encaminados a la producción de bienes y servicios, la mayoría de países cuentan con legislación ambiental que, de una u otra manera, trata de reducir los impactos negativos que estos proyectos tengan con el entorno. El resarcimiento de hábitat o elementos del ambiente afectados suele presentarse como una sustitución a partir de recursos ecológicamente equivalentes. Sin embargo, una limitante frecuente es que los procedimientos de cómo realizar evaluaciones apropiadas de equivalencia ecológica no siempre son claros. Este trabajo provee una visión teórica del uso de compensación ambiental como instrumento jurídico/técnico integrado al manejo del entorno natural. Además, evalúa …
Aspiration development among rural youth : case study Liceo Rural Sámara
2017
The aim of this thesis is to provide a preliminary analysis of the aspirations of rural youth in Sámara, Costa Rica and the factors influencing them. This study will supplement the existing literature on aspirations, while providing a new approach to this field. By assessing which factors are most influential to youth’s development of aspirations this study hopes to provide information which can help to improve infrastructure for the development of aspirations in the future. The ultimate goal is to guide future structural changes to promote the development and realization of youth’s aspirations. The study implements an actor-centered approach by utilizing questionnaire data gathered in the …
Insights on Hydrothermal‐Magmatic Interactions and Eruptive Processes at Poás Volcano (Costa Rica) From High‐Frequency Gas Monitoring and Drone Measu…
2019
Texto completo del documento Identification of unambiguous signals of volcanic unrest is crucial in hazard assessment. Processes leading to phreatic and phreatomagmatic eruptions remain poorly understood, inhibiting effective eruption forecasting. Our 5‐year gas record from Poás volcano, combined with geophysical data, reveals systematic behavior associated with hydrothermal‐magmatic eruptions. Three eruptive episodes are covered, each with distinct geochemical and geophysical characteristics. Periods with larger eruptions tend to be associated with stronger excursions in monitoring data, particularly in SO2/CO2 and SO2 flux. The explosive 2017 phreatomagmatic eruption was the largest erupt…
Evolución comparativa del discurso dominante del desarrollo en materia migratoria desde 2008 en el contexto de la crisis global en España y Costa Ric…
2015
La crisis financiera internacional, que desde 2008 está arrastrando a muchos países supuestamente desarrollados hacia la pobreza y está hundiendo aún más profundamente a los países tradicionalmente considerados como subdesarrollados, está dando lugar a una nueva situación de indefensión de millones de personas ante la constante especulación de los mercados. Al mismo tiempo la misma crisis está impulsando los beneficios de las élites financieras, las cuales continúan haciendo negocio con la deuda de los nuevos países en quiebra y con la de los países del Sur que profundizan dramáticamente sus índices de pobreza, dando lugar a nuevas y diferentes fluctuaciones migratorias en todo el mundo. En…