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Now showing items 12571-12590 of 13291
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The mixed-proficiency language class in the associate's program in English at UNASRB: the consequences for students, teachers and the institution.
(Escuela de Literatura y Ciencias del Lenguaje. Maestría en Segundas Lenguas y Culturas, 2011)Este estudio de caso se llevo a cabo con estudiantes de ingles como lengua extranjera del programa de Diplomado en Ingles de la Universidad Nacional Sede Regional Brunca. El propósito de esta investigación era investigar ... -
The mixed-proficiency language class: consequences for students, professors and the institution
(Editorial Universidad Nacional, 2013-02-19)Se examinan los efectos de reunir estudiantes con varios niveles lingüísticos en una sola clase de inglés como lengua extranjera y sus efectos en la participación, progreso, retención y el desarrollo de la clase en el ... -
The Mw 6.4 Damas, Costa Rica, Earthquake of 20 November 2004: Aftershocks and Slip Distribution
(Seismological Society of America, 2006-08)The earthquake of 20 November 2004 was located north of Damas Island in the Pacific coast of Costa Rica, within the Costa Rica Deformed Belt. The earthquake was located at 24 km depth and reported with a magnitude (Mw) of ... -
The myth of native speakers and native speakerism in Costa Rica
(Universidad Nacional, Costa Rica, 2021)Speaking English has become the universal language which people use to communicate, nonetheless to what extent do second language learners should master English to the point of having “Native” like mastery. This essay ... -
The Nicoya segment of Middle American Trench: an Excellent Target for Drilling and Monitoring the Shallow Portion of the Seismogenic Zone
(2011-06-28)The Nicoya segment of Middle America Trench has generated large earthquakes in 1883, 1900 and 1950. Since the Nicoya peninsula sits right over the seismogenic zone, it has proved to be a unique site for near field monitoring ... -
The NS segment of H5N1 avian influenza viruses (AIV) enhances the virulence of an H7N1 AIV in chickens
(Veterinary Research, 2014-01-25)Some outbreaks involving highly pathogenic avian influenza viruses (HPAIV) of subtypes H5 and H7 were caused by avian-to-human transmissions. In nature, different influenza A viruses can reassort leading to new viruses ... -
The one hundred year journey of the genus Brucella (Mayer and Shaw 1920)
(Oxford University Press, 2021-01-01)The genus Brucella, described by Meyer and Shaw in 1920, comprises bacterial pathogens of veterinary and public health relevance. For 36 years, the genus came to include three species that caused brucellosis in livestock ... -
The opening of vents like decompression valves of the hydrothermal system at Turrialba volcano, Costa Rica
(International Association of Volcanology and Chemistry of the Earth's Interior, 2013-07-24) -
The opossum and other didelphids in the cultures of Costa Rican society and indigenous peoples: an approach to ecology and conservation
(Cold Spring Harbor Laboratory (Estados Unidos), 2024)The opossum Didelphis marsupialis, commonly referred to as the zorro pelón in Costa Rica, is a marsupial that holds significant representation in both Costa Rican and indigenous cultures, such as the Talamanca natives. ... -
The persistent embrace of onychophorans: What determines copulation duration in velvet worms?
(Universidad de Costa Rica (Costa Rica), 2019)In the only onychophorans mating that has been photographed, instead of fleeing, the couple remained together despite being manipulated. Why? The duration of copulation in onychophoran sis possibly controlled by the female, ... -
The pertinence of addressing the affective filter in EFL Costa Rican classrooms and strategies to lower it
(Universidad Nacional, Costa Rica, 2022)This paper explains the relevance that the affective filter has on students’ learning processes and the different approaches that can be implemented to reduce its negative effects. At this time, several studies have confirmed ... -
The polynucleotide kinase 3′-phosphatase gene (PNKP) is involved in Charcot-Marie-Tooth disease (CMT2B2) previously related to MED25
(Springer, 2018-07-24)Charcot-Marie-Tooth disease (CMT) represents a heterogeneous group of hereditary peripheral neuropathies. We previously reported a CMT locus on chromosome 19q13.3 segregating with the disease in a large Costa Rican family ... -
The potential use of Rattus norvegicus (Mammalia, Muridae) in experimental infections with metacercariae of Paragonimus mexicanus (Digenea, Troglotematidae)
(Universidad Nacional, Costa Rica, 2017-01-15)Seven Wistar rats (Rattus norvegicus) were experimentally infected with Paragonimus mexicanus metacercariae, obtained from organs and tissues of freshwater crabs (Brachyura: Pseudothelphusidae) collected from the Caribbean ... -
The principles of cooperative learning in an oral communication course in English: A descriptive analysis
(Universidad Nacional, 2014)This article reports on the findings of a research conducted to describe the occurrence and effect of the principles of Cooperative Learning in an oral communication course in English for sophomores during one semester at ... -
The promotion of online student-centered classes to achieve Communicative Language Teaching with the help offered by technological tools
(Universidad Nacional, Costa Rica, 2021)Nowadays, teaching virtually has become a challenge due to the COVID 19 emergency. However, with the help of technological tools, English as aforeign language (EFL) classes can be directed towards a student-centered ... -
The proteolytic digestive activity and growth during ontogeny of Parachromis dovii larvae (Pisces: Cichlidae) using two feeding protocols
(2014)Se evaluó la actividad proteolítica digestiva y el crecimiento de larvas de Parachromis dovii durante la ontogenia en un sistema de recirculación utilizando dos estrategias de alimentación durante un período de 28 días. ... -
The Providence and Port of Limón: Metaphors for Afro-Costa Rican Black Identity
(Universidad Nacional, Costa Rica, 2015)Durante mis años como estudiante de la disciplina de Historia, me preocupaba que tanto en la historiografía costarricense como en la caribeña no hubiera suficientes estudios sobre los inmigrantes afrocaribeños del siglo ... -
The regionalization of a university project of educational robotics to help Costa Rican youth to avoid drug consumption
(Institute of Electrical and Electronics Engineers Inc., 2019)The following article presents the experience of the regionalization of the Training of Trainers in Robotics project in Schools in vulnerable areas of Costa Rica to the different regions outside the Greater Metropolitan ... -
The regulon of Brucella abortus two- component system BvrR/BvrS reveals the coordination of metabolic pathways required for intracellular life
(PLOS ONE, 2022-09-21)Brucella abortus is a facultative intracellular pathogen causing a severe zoonotic disease worldwide. The two-component regulatory system (TCS) BvrR/BvrS of B. abortus is con- served in members of the Alphaproteobacteria ... -
The relationship between humidity, light and the activity pattern of a velvet worm, Epiperipatus sp. (Onychophora: Peripatidae), from Bahía Drake, South Pacific of Costa Rica
(Instituto Internacional de Ecología (Brasil), 2018-10-31)Even though the Onychophora represent a whole phylum, observations of their activity pattern in nature are almost non-existent. Here we report on the relationship between humidity and light and activity pattern of a new ...