منابع مشابه
Perchlorate in wet deposition across North America.
Natural perchlorate is believed to be of atmospheric origin, yet no systematic study has been conducted to evaluate perchlorate deposition rate and possible seasonal or spatial variations. This study evaluated perchlorate concentrations in weekly composite wet deposition samples acquired through the National Atmospheric Deposition Program from 26 sites across the continental United States, Alas...
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[1] Imaging of seismic velocity discontinuities along a 3000 km profile across central South America at 20 S suggests that the depth variations of the 410-km (d410) and 660-km (d660) discontinuities are closely associated with the high-velocity Nazca slab and juxtaposed low-velocity oceanic mantle beneath the slab. The mantle transition zone thickness ranges from 220 km in the oceanic mantle to...
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SALA II is a project co-sponsored by several companies that focuses on collecting linguistic data dedicated for training speaker independent speech recognizers for mobile/cellular network telephone applications. The goal of the project is to produce SpeechDatlike databases in all the significant languages and dialects spoken across Latin America, US and Canada. Utterances will be recorded direc...
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AMERICAN METEOROLOGICAL SOCIETY | 1743 T he transport and transformations of water substance in the global water cycle are of fundamental and primary importance for understanding the ecosystems, the land surface hydrology that supports them, and the management of water resources for humans. Th e water cycle is also critical for predicting weather, and the long-term climate balance of the planet...
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* Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil. E-mail: [email protected] Financial support: none. This paper was developed for the written test of the competition examination for the position of locum tenens Professor of Child and Adolescent Psychiatry at the Department of Psychiatry and Legal Medicine of Universidade Federal do Rio Gran...
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ژورنال
عنوان ژورنال: The Geographical Journal
سال: 1924
ISSN: 0016-7398
DOI: 10.2307/1781799