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《The Journal of geography》2012,111(6):287-288
Abstract Geography and Air Transport, by Brian Graham, New York: John Wiley &; Sons, Inc. 1995. 288 pp. Maps, diagrams, tables. ISBN 0-471-95757-7. Geographies of Global Change: Remapping the World in the Late Twentieth Century, by R. J. Johnson, Peter J. Taylor, and Michael J. Watts, eds., Cambridge, MA: Blackwell Publishers, Inc. 1995. 462 pp. Bibliography, further reading, index. ISBN 0-631-19327-8. $19.95. paper. Political Geography, by Martin Ira Glassner, New York: John Wiley &; Sons, Inc. 1996.2nd edition. 716 pp. Bibliographies, index. ISBN 0-471-11496-0. $64.95, hardcover. 相似文献
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《The Journal of geography》2012,111(5):296-302
Abstract The study involved an evaluation of a conceptual geography unit intended for use at the kindergarten level. Unit appropriateness was assessed on the basis of pupil success and teacher usability. Pupil success was evaluated by examining the variances in achievement and learning gains that existed among pupil groups based on sex, race, socio-economic status, and pretesting. Variances among pupil groups based on race and socio-economic status were statistically significant. Teacher usability was evaluated by examining the variances in achievement and learning gains that existed among pupil groups based on teacher background in geography, experience with the unit, teacher perception of the overall appropriateness of the unit, and appropriateness of the unit at the kindergarten level. Variances among pupil groups based on all teacher variables except geography background were statistically significant. In all cases, learning gains were significant. The main hypothesis that the unit was appropriate for use at the kindergarten level was not rejected. 相似文献
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高速远程崩滑动力学的研究现状及发展趋势 总被引：11，自引：0，他引：11
高速远程崩滑动力学机理的研究,一直是国内外工程地质与山地灾害领域崩塌、滑坡灾害研究的前沿热点问题。对这一研究领域,最近几十年来所取得的研究成果、研究现状及发展趋势进行了述评。厘定了高速远程崩滑的定义;详细地阐述了国内外众多典型重大高速远程崩滑灾害事件的几何学、运动学特征;概述了迄今为止所提出的高速远程崩滑形成的各种动力学机理;分析与讨论了高速远程崩滑动力学机理研究的发展趋势与动向;提出了今后进一步研究的总体思路、目标与应重点解决的关键问题。 相似文献
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Zakia MOKRANE Mustapha BOUDJENAH Yasmina BELKACEM EL Hadi MORSLI Ahmed INAL Fahima BOUARAB 《资源与生态学报(英文版)》2019,10(4):432-440
The phytoplankton group’s composition is an excellent indicator of the state of coastal waters. The aim of this study is to explore spatial variability of phytoplankton in shallow coastal areas from different regions (East, Center and West) of the Algerian coast. The quantitative and qualitative study of the phytoplankton population was conducted on samples taken during the 2012-2013 period by the research vessel GRINE BELKACEM. The qualitative results show a significant diversity of diatoms and dinoflagellates, which rank first and second in the total flora (Fr > 50%). This finding is also confirmed quantitatively by the abundance values in both 2013 and 2012 samples which largely exceeds the average value in most other areas of the western region (56%) and slightly exceeding 52% in all central areas which represent an equi-distribution between diatoms and dinoflagellates. The Dinoflagellates contribute significantly to the quantitative richness in the eastern region (>60%). The minimum value of Dia/Dino index, recorded in the eastern region confirms the dominance of the dinoflagellates especially in Skikda (0.31) (Skikda).However, our results reveal the presence, in smaller proportion, of other groups such as the cocolithophoridae and euglenophyceae. 相似文献
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ZHANG Chaosheng 《地理学报》2013,23(1):192-192
The 2012 Sino-European Symposium on Environment and Health (SESEH 2012) was successfully held at National University of Ireland, Galway during August 20-25, 2012. 相似文献
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