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The Oral History Project describes a middle school project thatbegan with a statewide effort to improve students languagearts achievement scores. Pennsylvania educators proposed anintegrative instructional model that would involve adolescentsin intergenerational interviews. Teachers implemented the modelin a variety of settings. This book represents Pennsylvaniaeducators attempt to share the integrative intergenerationalinterview model with others. Donald Graves, a nationally known expert in language arts educationand author of the Foreword, asserts the instructional modelrepresented in The 相似文献
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Jon M. Erlandson Torben C. Rick Todd J. Braje Alexis Steinberg René L. Vellanoweth 《Journal of archaeological science》2008
We use measurements of more than 11,000 marine shells from 41 archaeological components to construct a 10,000 year record of human impacts on ancient mussel and abalone stocks on San Miguel Island, California. General reductions in the mean size of mussel and abalone shells gathered through time are attributed to growing human population and predation pressure. Based on comparison with historically documented changes in shellfish communities caused by the local extinction of sea otters in the 19th century, changes in mean shell size and the abundance of other shellfish species may have been facilitated by Native American predation on sea otters as early as 7500 years ago. Despite having measurable impacts on local ecosystems, Native Americans on San Miguel harvested huge quantities of shellfish throughout the Holocene. Such long-term harvests appear to have been sustained by an early emphasis on fishing at lower trophic levels, by periodically shifting village locations, and by intensifying the use of finfish and sea mammals through time. This pattern of “fishing up the food web” contrasts with many modern fisheries, suggesting that the study of ancient fisheries can help us better manage our own endangered coastal ecosystems. 相似文献
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R. Lee Lyman Todd L. VanPool Michael J. O'Brien 《Journal of archaeological science》2008,35(10):2805-2812
The appearance of the bow and arrow in North America as a weapon-delivery system is predicted to have prompted an increase in variation among antecedent projectile points that tipped darts propelled by atlatls. Attributes of dart points are expected to display greater variation with the appearance of the bow as prehistoric artisans experimentally sought points that worked effectively as arrow points. Attributes of arrow points are predicted to also initially display much variation. Subsequent to the initial burst of variation, less-effective variants of attributes were winnowed out, causing a reduction in variation of attributes of both dart points and arrow points. Both coefficients of variation for individual attributes and summed coefficients of variation for multiple attributes of three sequences of projectile points from evolutionarily independent areas in North America confirm these predictions. 相似文献
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Todd Donovan 《Australian journal of political science》2014,49(4):626-646
This article assesses religion and voting in Australia since 1987 and examines how Tony Abbott's status as Liberal leader corresponded with changes in leader evaluations and voting, and with significant changes in Australian parties and the electorate. Religious attendance became associated more strongly with Liberal voting in 2010. Catholics voted Liberal significantly more from 2010, in significantly higher numbers they viewed the Liberal leader more positively in 2013, and they viewed the Labor leader significantly less so. Evaluations of Abbott were structured by attitudes about abortion and same-sex marriage, whereas evaluations of Kevin Rudd were not. The article discusses how these results are not unique to Australia, but fit patterns observed with centre-right parties in other western democracies.
本文考察了1987年以来的宗教和投票,并研究了托尼·阿伯特作为自由党党首如何应对在党首评价及投票方面的变化,以及澳大利亚政党和选举上的重大变化。宗教的参与和2010年的自由党投票关系密切。而自2010年起,天主教徒明显地更多投自由党的票;2013年更多天主教徒对自由党领导人做正面评价;他们对工党领导人评价就要低得多。对阿伯特的评价主要取决于堕胎和同性结婚问题,而对陆克文的评价则不是这样。本文讨论了为什么这样的结果并不是澳大利亚的独特现象,其他中右翼当政的西方民主国家也是这样。 相似文献