Micro and mesozooplankton composition during winter in Ushuaia and Golondrina Bays (Beagle Channel, Argentina)

Gravity Wave Generation and Breaking Observedwith Radiosondes at Ushuaia (argentina)

High resolution radiosondes that were launched at Ushuaia (54.8S) during October-December, 1995 are examined. Episodes of high gravity wave activity are found in the lower stratosphere (from 10 km to 24 km). The enhancement of gravity wave activity is ascribed to the conjuction of two factors: gravity wave generation and Doppler-shifting. Two radiosondes with high wave activity cases are examin...

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Variations of Mesozooplankton Composition in a Eutrophicated Semi-enclosed System (encerrada Bay, Tierra Del Fuego, Argentina)

response articles: micro and macro analysis

the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...

effectiveness of hedstroum files and rotary k3 instruments in removal of obturation materials during retreatment in curved canals

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