ABSTRACT
El presente artículo de investigación da a conocer los resultados de una investigación que tuvo como objetivo identificar el nivel de confiabilidad y validez del "Inventario para la Medición del Engagement en el Trabajo" (IMET). Los objetivos se alcanzaron a través de un estudio instrumental en el que se aplicó dicho inventario a 572 docentes de la ciudad de Durango, México. Los resultados obtenidos con la aplicación de este instrumento, permitieron demostrar una alta confiabilidad y validez para medir el engagement.
This article shows the results of a study that identified the level of reliability and validity of the "Inventory for Measuring Engagement at Work" (IMET). The objectives were achieved through an instrumental study. The instrument was administered to 572 teachers in the city of Durango, Mexico. The results obtained with the application of this instrument, allowed to demonstrate high reliability and validity for measuring engagement.
ABSTRACT
The geosciences contribution along the 50 years of the Revista de BiologÝa Tropical had been scarcity and episodic. Until now there are 2374 papers but only 21 (0.88) have some relation with geological sciences. It's possible to recognize two periods with geological contributions, one between 1963 and 1978. It's appropriate to underline the importance of the biologist L. D. Gómez with his contributions about Costa Rican Paleobotanic in this period. The other period includes from 1988 to the present, and it's typified by an increase of biologist and geologist participation in different topics regarding with geosciences. Foreign and national researches are in the same ratio and belong from several countries like Costa Rica, MÚxico and Dominican Republic. The subjects are concerning mainly about fossil taxonomy (Paleontology: 81), only 19 are related with geological topics. Such distribution could be explained because the affinity between the fossil studies and the biological sciences.
Subject(s)
Biology , Geology , Paleontology , Periodical/history , Tropical Climate , Costa RicaABSTRACT
The outcrops at Jesús Maria (Turrialba, Cartago Province, Costa Rica) present limestone sequences 12 to 30 m thick (packstones: biolithites, biomicrites; and wackstones: biosparites, biomicrosparites), sandstones and conglomerates of Upper Oligocene-Lower Miocene age, correlated to the Punta Pelada Formation. The limestones are characterized by patch reefs with an irregular distribution and a reduced lateral extension (50 m), composed of corals (40%), calcareous algae and foraminiferans (30%), mollusks (20%), and in minor amounts fragments of barnacles, decapods, echinoderms and bryozoans. They consisted of low diversity communities possibly due to diverse geographical, geological and tectonic factors: a narrow continental shelf, very shallow and isolated environments, sea level fluctuations, and exposure to clastic sedimentation associated with intermitent volcanic activity. Equity was also low, with corals making up 40% of all macrofossils, and one species, Antiguastrea cellulosa, as predominant (80% of the corals present). These bioconstructions were developed in an open circulation lagoon environment with transitions, in several occasions, to shallower environments represented by elastic sediments.
Subject(s)
Animals , Anthozoa , Biodiversity , Calcium Carbonate , Geologic Sediments , Costa Rica , SeawaterABSTRACT
A new species of scleractinian coral is described: Euphyllia donatoi. This is the first report of this genus from Central America. The outcrop is located on the north-west of Costa Rica. It consists of large colonies (1.2 m high by 0.5 m in diameter), from a patch reef which had a dendroid habit. They are part of a very distintive facies in a micritic limestones of the Barra Honda Formation (Paleogene). The finding is important because these are the only macrofossils found in Barra Honda Formation. The growth took place under unstable ecological conditions resulting in a low diversity autocthonous community. It probably developed in very shallow water with a high sedimentation rate.