The City Natural: “Garden and Forest” Magazine and the Rise of American Environmentalism Shen Hou. Pittsburgh,PA: University of Pittsburgh Press, 2013.          下载免费PDF全文

Ben Engel 《Journal of American culture (Malden, Mass. : 2003)》2015,38(2):190-191

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Going Against the Grain in an Urban Arizona High School: Secondary Preservice Teachers Emerging as Culturally Responsive Educators     

Pablo Ramirez  Margarita Jimenez-Silva  April Boozer  Ben Clark 《Multicultural Perspectives》2016,18(1):20-28

This one year study examines the journey of two preservice urban high-school teachers in Arizona as they enact Culturally Responsive Teaching in a year-long student teaching residency. Factors that influenced their Culturally Responsive Teaching practices are discussed along themes that emerged from interviews and classroom observations. Recommendations for ways of integrating Culturally Responsive Teaching in teacher education programs are provided.  相似文献   

Snap-N-Send: A valid and reliable method for assessing the energy intake of elite adolescent athletes     

Nessan Costello  Kevin Deighton  Joshua Dyson  Jim Mckenna  Ben Jones 《European Journal of Sport Science》2017,17(8):1044-1055

To ensure that elite adolescent athletes meet their unique training, growth and maturation demands, it is imperative to have access to valid measures of energy intake. Contemporary methods demand close attention-to-detail, meaning that athletes often do not fully adhere to real-time protocols. This study represents the first investigation of a real-time dietary assessment designed using a comprehensive behaviour change framework (COM-B). In a crossover design, 12 elite adolescent male rugby players recorded their energy intake via an estimated food diary (est-FD) and photography-based mobile assessment (‘Snap-n-Send’), combined with a 24-h dietary recall interview. Two 4-day assessment periods were divided into three separate recording environments: 96?h free-living and researcher-observed; 72?h free-living and 10?h researcher-observed. Assessment periods were one month apart. All foods and beverages were provided and weighed by the research team to quantify actual intakes. ‘Snap-n-Send’ reported a small mean bias for under-reporting across 96?h (?0.75?MJ?day^?1; 95% confidence interval [CI] for bias?=??5.7% to ?2.2%, p?<?.001), 72?h (?0.76?MJ?day^?1; 95% CI for bias?=??5.6% to ?2.1%, p?=?.004) and 10?h (?0.72?MJ?day^?1; 95% CI for bias?=??8.1% to ?0.1%; p?=?.067) environments. The est-FD reported a moderate mean bias for under-reporting across 96?h (?2.89?MJ?day^?1; 95% CI for bias?=??17.9% to ?10.2%; p?<?.001), 72?h (?2.88?MJ?day^?1; 95% CI for bias?=??17.9% to ?10.1%; p?<?.001) and 10?h (?2.52?MJ?day^?1;?26.1% to ?5.3%; p?=?.023) environments. Results evidence the ability of ‘Snap-n-Send’ to accurately assess the diet of elite adolescent athletes, signalling the exciting promise of this comprehensive and theoretical behavioural approach within valid dietary assessment.  相似文献   

河南旅游资源开发对策     

史本林 《周口师范学院学报》2000,(3)

文章在综述河南旅游资源发展状况后指出 ,河南旅游资源开发至今没有摆脱粗放型经营方式 ,并对河南旅游资源开发提出了一系列对策  相似文献   

适应人工智能快速发展的知识产权制度研究     

余翔  张润哲张奔 王华 《科研管理》2021,42(8):176-183

基于深度学习算法的进步,人工智能逐渐有能力独立进行发明创造和文艺作品创作。本文主要探讨现行专利及著作权制度中规定的保护对象、权利人资格、专利及著作权的权属、侵权判定、侵权责任主体等对人工智能技术快速发展的适应及协调程度,研究指出：现有的专利和版权制度应当对人工智能的发明和作品持鼓励的态度,在排除不适宜作为专利或著作权保护对象的同时,人工智能的发明或作品的权利授予标准应当与人类的有所区分;相关权利人仍须对应自然人或法人,而非人工智能本身;相关专利侵权行为应包括间接侵权,同时应对人工智能作品安排“登记-授权”的著作权制度、参考临摹作品为人工智能绘画作品提供相应的授权使用制度等。本文还探讨了当前的专利法及著作权法在人工智能时代符合公平原则的程度,并提出解决方案：在“强人工智能时代”将人工智能的发明创造或作品作为公共财产,授予相应的开发者“数据处理权”作为一种新的邻接权,赋予人工智能创造物新的特别权利（Sui Generis）,修改专利法与著作权法中关于主要权利的相关规定等。  相似文献   

杭州大雪的气候诊断分析     

查贲  张炎  方汉杰 《科技通报》2010,26(1):63-66,76

通过对杭州1951年以来的48个大雪个例资料,结合海温、大气环流特征资料进行周期分析、突变检测、相关分析,给出杭州大雪出现频次的周期、突变点,发现大雪出现频次、降雪强度与海温冷暖事件存在高关联．特别是与NINO1＋2区海温存在密切的联系,根据所得结论可以较好的对大雪发生趋势作出预测。  相似文献   

铝电解故障诊断的研究现状及发展趋势     

周昊  李界家  李世涛  王奔 《科技广场》2010,(9)

铝电解是一个非线性、多耦合、时变和大时滞过程,受强电场、强磁场、强热场交互干扰,故障发生频繁。本文综述了国内外铝电解故障诊断研究状况,阐述了目前铝电解故障诊断的主要方法和发展趋势,为铝电解故障诊断技术的实用化提供理论依据。  相似文献   

Socioeconomic Implications of Telecommunications Liberalization: India in the International Context     

Ben A. Petrazzini Girija Krishnaswamy 《The Information Society》1998,14(1):3-18

Telecommunications restructuring have evolved differently in Asia and Latin America. While Asian governments have moved cautiously in bringing changes to the sector, Latin American nations have implemented radical ownership and market transformations. The Indian telecommunications reform falls in between these two general regional trends. The choice of a high component of competition, increased private participation, and no privatization of the national carrier set conditions that will trigger unique socioeconomic effects. This article identifies and highlights the likely implications of the Indian reform on key economic and social issues, such as the cost of services, cross-subsidies, network interconnection, private investments, universal services, employment, and the possible rise of an information-intensive economy. It does so by comparing and contrasting the Indian experience with dominant reform strategies elsewhere in the developing world.  相似文献   

Equity in college physics student learning: A critical quantitative intersectionality investigation     

Ben Van Dusen  Jayson Nissen 《科学教学研究杂志》2020,57(1):33-57

We investigated the intersectional nature of race/racism and gender/sexism in broad scale inequities in physics student learning using a critical quantitative intersectionality. To provide transparency and create a nuanced picture of learning, we problematized the measurement of equity by using two competing operationalizations of equity: Equity of Individuality and Equality of Learning. These two models led to conflicting conclusions. The analyses used hierarchical linear models to examine student's conceptual learning as measured by gains in scores on research-based assessments administered as pretests and posttests. The data came from the Learning About STEM Student Outcomes' (LASSO) national database and included data from 13,857 students in 187 first-semester college physics courses. Findings showed differences in student gains across gender and race. Large gender differences existed for White and Hispanic students but not for Asian, Black, and Pacific Islander students. The models predicted larger gains for students in collaborative learning than in lecture-based courses. The Equity of Individuality operationalization indicated that collaborative instruction improved equity because all groups learned more with collaborative learning. The Equality of Learning operationalization indicated that collaborative instruction did not improve equity because differences between groups were unaffected. We discuss the implications of these mixed findings and identify areas for future research using critical quantitative perspectives in education research.  相似文献   

从“5W”模式看科技传播   总被引：5，自引：0，他引：5  

常本瑞  谢瑞东 《图书馆论坛》2000,20(5):19-21

从“５Ｗ”模式探讨获取最佳科技传播效果的途径与方法,以期对我国的科普工作,甚至对充发发挥图书馆传递科学的作用有借鉴意义。  相似文献