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51.
Yu Ren Dong 《Social Studies》2017,108(4):143-151
Second language research and Culturally Relevant Pedagogy have shown a consensus that ELLs who have studied social studies in their home countries will have a better chance of understanding social studies concepts and quickly catching up to their native English-speaking peers. This article discusses strategies to make good use of ELLs' prior knowledge, native language and culture, and previous literacy to teach social studies concepts meaningfully and effectively to this group of students. 相似文献
52.
Motivated by the need to analyze the National Longitudinal Surveys data, we propose a new semiparametric longitudinal mean‐covariance model in which the effects on dependent variable of some explanatory variables are linear and others are non‐linear, while the within‐subject correlations are modelled by a non‐stationary autoregressive error structure. We develop an estimation machinery based on least squares technique by approximating non‐parametric functions via B‐spline expansions and establish the asymptotic normality of parametric estimators as well as the rate of convergence for the non‐parametric estimators. We further advocate a new model selection strategy in the varying‐coefficient model framework, for distinguishing whether a component is significant and subsequently whether it is linear or non‐linear. Besides, the proposed method can also be employed for identifying the true order of lagged terms consistently. Monte Carlo studies are conducted to examine the finite sample performance of our approach, and an application of real data is also illustrated. 相似文献
53.
Outer product of gradients (OPG) achieves dimension reduction via estimating the gradients of the regression function. In this paper, we propose two novel OPG estimators via local rank regression: the rank OPG estimator and the Walsh-average OPG estimator. Both proposals guard against a wide range of error distributions, and are safe alternatives to existing OPG estimators based on local linear regression or local L1 regression. The effectiveness of the new proposals are demonstrated via extensive numerical studies. 相似文献
54.
幼儿的撒谎行为是幼儿成长过程中面临的普遍问题,如果忽视这一问题,将会对幼儿的健康成长造成影响。对幼儿的撒谎行为教育者既不可漠不关心、任其发展,也不可过分斥责、大打出手。文章分析了影响幼儿撒谎行为的内外因素,提出了一系列矫正幼儿撒谎行为的有效策略,以促进幼儿身心健康发展。 相似文献
55.
曹禺《北京人》中的曾思懿并非一般读者心目中的大奸大恶之人,她的所作所为是有客观原因的,封建制度、男权意识、悲剧婚姻、性格异化都造成了她长久以来被读者误解误读的现象,她需要一个相对公道的评价。 相似文献
56.
本文对费孝通和利奇的理论作了较为详细的对比分析 ,并找出了他们的分歧所在 ,有助于社会人类学学者对我国社会问题的进一步研究 相似文献
57.
本试验通过连续四年的观测,认为山野豌豆是适合大面积栽培的优良豆科牧草,该草利用年限长、耐践踏,更适于做人工放牧地的骨干豆科牧草. 相似文献
58.
民族经济学于1979年创建,适应了中国多民族国家的国情与社会主义现代化建设需要,具有民族学与经济学的双重学科归属.这门由中国人自己创建的经济学分支学科,在学科理论建设、学术成果积累与专业人才培养方面取得了巨大成就.并通过不可取代的学科地位与鲜明的应用性特征,展现出民族经济学的发展前景. 相似文献
59.
元代回回人的宗教制度与伊斯兰教法 总被引:3,自引:1,他引:3
本文研究了元代回回社会中的宗教制度和伊斯兰教法。作者认为,元代回回社会中存在着官方认可的管理者和更小的民间宗教事务管理者两套系统。伊斯兰教法约束了回回人的行为规范,并且对元代多元法律文化的形成产生了影响。在多元文化的发展过程中,“回回法”同“汉法”及“蒙古法”有一个冲突和融合的过程。 相似文献
60.
Software packages usually report the results of statistical tests using p-values. Users often interpret these values by comparing them with standard thresholds, for example, 0.1, 1, and 5%, which is sometimes reinforced by a star rating (***, **, and *, respectively). We consider an arbitrary statistical test whose p-value p is not available explicitly, but can be approximated by Monte Carlo samples, for example, by bootstrap or permutation tests. The standard implementation of such tests usually draws a fixed number of samples to approximate p. However, the probability that the exact and the approximated p-value lie on different sides of a threshold (the resampling risk) can be high, particularly for p-values close to a threshold. We present a method to overcome this. We consider a finite set of user-specified intervals that cover [0, 1] and that can be overlapping. We call these p-value buckets. We present algorithms that, with arbitrarily high probability, return a p-value bucket containing p. We prove that for both a bounded resampling risk and a finite runtime, overlapping buckets need to be employed, and that our methods both bound the resampling risk and guarantee a finite runtime for such overlapping buckets. To interpret decisions with overlapping buckets, we propose an extension of the star rating system. We demonstrate that our methods are suitable for use in standard software, including for low p-value thresholds occurring in multiple testing settings, and that they can be computationally more efficient than standard implementations. 相似文献