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Occupational whole body vibration has long been associated with low back injuries. However, the mechanism of these injuries is not well understood. In this paper, the effect of whole body vibration on proprioception and dynamic stability was examined. Subjects exposed to 20 minutes of vertical, seated, whole body vibration were found to have a 1.58 fold increase in position sense errors after vibration relative to controls exposed to 20 minutes of the same seated posture without vibration exposure. To understand the potential effect of a sensory loss on dynamic low back stability a lumped parameter model of the trunk and neuromotor response was created. Using this model, an increase in the threshold of the sensory system was predicted to increase trunk flexion and delay neuromotor response with a sudden, unexpected perturbation. ...
After synthesizing the scholarly literature on what makes a task in language teaching, the author presents a detailed look at one implementation of task-based language teaching in an beginning-level Russian language classroom. Appendices include classroom materials and lesson plans.
Elite Minoan women (Bronze Age Crete) practiced waist compression (or corsetting). This study gives the evidence for this practice and uses the experience of modern practictioners of waist compression, as given in blogs on websites, to reproduce the experience of the ancient Minoans.
When reading authentic texts, intermediate-level students face many problems (lack of vocabulary, difficulties with word order and syntax, unfamiliar target language discourse practices) that can significantly impede their comprehension. Intermediate-level students of Russian read two newspaper articles online, where they could click on any word and receive a contextual gloss. Before receiving the guess, they had to guess the meaning of the word and give a reason for their guess. The data reveal interesting patterns in student reading strategies as well as patterns of misreading.
The natural history of two Costa Rican species of sweat bees was studied to better understand the advantages and disadvantages associated with group-living and cooperative behavior in bees. One of the bees was a new species, and was described and named after Jose Figueres Ferrar, a famous Costa Rican patriot. Studies of the behavior of these bees, in turn, are used as general models for studying social behavior. Experimental studies on one of the species (Lasioglossum figueresi) showed that females recognize their homes (nests) in part by means of individual "chemical signatures" deposited at the entrance-way. The use of chemical signatures by solitary bees to recognize their nests is useful because the same perceptual systems can be used by the bees to recognize other bees, and so form stable social groups. Experiments on mate recogni...
The opening phrase of the title succinctly states the economic situation of the Church in eighteenth century Honduras. This study comprises an analysis of episcopal leadership, the relationship between royal authorities and the Church, tithe administration, collection, and distribution in theory and practice, and the origins of anti-clerical Liberalism in Honduras at the close of the Bourbon era. Appendices provide a revised list of bishops who served the diocese and tithe yields for Comayagua [Honduras], Guatemala, Leon [Nicaragua], Chiapas, New Spain [Mexico], Chile, and Havana [Cuba]. A glossary of Spanish colonial terms is included. Although colonial Honduras was too poor to attract ambitious Spanish clerics, the bishops appointed to serve Comayagua were, as a group, estimable men. Five of the appointees, including the reknowned An...
Publishing a sealstone in the Museum of Art and Archaeology, University of Missouri-Columbia.
This pamphlet is written for junior faculty members and advanced graduate students who are at the beginning of their professional research careers and who might benefit from a brief introduction to the “why” and “how” of writing individual grant proposals in the humanities.
Recent taxonomic works have recognized only two species of spiny pocket mice of the genus Heteromys (Rodentia: Heteromyidae) from Costa Rica. Within Costa Rica, the widespread H. desmarestianus is considered to occur throughout the wet Caribbean lowlands, as well as at middle and high elevations on the Caribbean and Pacific slopes of the country’s main montane systems. In contrast, H. oresterus is known from only a few localities at high elevations in the western portion of the Cordillera de Talamanca in central Costa Rica. Our morphological and morphometric analyses of specimens from northwestern Costa Rica reveal the presence of an undescribed species of the genus, which we describe as Heteromys nubicolens. This new species ranges from 750–1840 m in elevation in the Cordillera de Tilarán and Cordillera de Guanacaste. Heteromys desmar...
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