A quasi-experimental study of a peer-assisted strategy-based reading intervention in elementary school

Promising methods of reading instruction for elementary school students incorporate peer-assisted learning routines and reading strategies. In addition, models of reading comprehension point to the importance of various determinants of reading competence such as reading fluency and vocabulary knowledge. Multicomponent reading intervention programs need to be evaluated to determine IF and HOW they unfold their effects on the reading competence of elementary school students on the basis of such theoretical and empirical models. Accordingly, the present study was designed as a quasi-experimental study of a 20-lesson peer-assisted and strategy-based multicomponent intervention for whole-class instruction in elementary school. Linear mixed models and latent growth models were used to analyze the longitudinal data (pre-, post- and follow-up test) on the reading competencies (reading fluency, vocabulary knowledge, reading strategy competence, reading comprehension) and intrinsic reading motivation of students in the intervention (N = 187) and control group (N = 177). The results showed an interaction between the groups and the change in reading comprehension, indicating a significantly increased score in the intervention group at the posttest (d = 0.15) but not at the follow-up test (d = 0.12). The results of the latent growth model point to the importance of designing interventions that explicitly integrate reading strategies, reading fluency and vocabulary knowledge and also foster intrinsic reading motivation. In addition, reading fluency was revealed to be the strongest predictor of reading comprehension and the change in fluency over time was closely linked to reading comprehension development.     

碲锌镉晶体生长技术的研究进展

碲锌镉单晶体是近年发展起来的一种性能优异的三元化合物晶体材料,具有良好的光电性质,被广泛用于制作核辐射探测器、红外探测器外延衬底等而引起了越来越多的研究者重视。研究碲锌镉晶体生长方法,对于低成本制备大体积、高质量的碲锌镉单晶体具有重要意义。数值模拟的发展,加深了对各种生长碲锌镉单晶体技术的认识,对加大碲锌镉单晶生长及应用的研究具有重要的意义。     

四川省地震灾区婴幼儿营养监测状况分析

作者通过对四川省青川县和彭州市两个地震灾区6-24个月龄婴幼儿健康状况的统计分析,发现该地区生长发育状况不佳,存在营养不良现象,其中贫血率较高。经过对比进行营养包6个月干预后的人群统计分析,发现营养状况稍得到改善,其中彭州市目标人群贫血改善明显,由此提出面对四川其它或其它类似贫困地震地区,由于贫困,天灾必然加剧受灾人群的营养状况,特别是贫血率状况,针对这些地区的求援,必须紧迫加强营养包的干预,而且需要持续性的干预,比较可靠的预算应该在灾难期6个月以上方有一定的作用,同时必要的管理措施有利于保证营养干预对象的稳定性,提高营养干预的有效性的。     

手枪速射运动员4 s射击节奏研究简

利用高速摄像机对4名优秀男子手枪速射运动员4s组射击进行现场动作拍摄,同时采用秒表记录各动作时相时间,通过对动作录像和秒表采集时间的分析,来揭示4s射击的时间节奏特点.将4s组射击的动作阶段划分为五个时相：举枪至第1靶击发、第1靶至第2靶、第2靶至第3靶、第3靶至第4靶、第4靶至第5靶.研究发现：4s组每发子弹击发所用帧数为5～6帧（频率为63帧/s）,发与发之间间隔帧数间隔帧数在26～38帧,大多数在28～34帧之间;举枪到第1发枪响,时间都在1.4～1.7 s之间,发与发之间的时间间隔在0.4～0.6 s范围内.对于男子手枪速射项目的节奏研究,高速摄像是一种精确、可靠的研究手段.     

论中国古典舞身韵传统组合“驯龙”的训练价值与意义

中国古典舞身韵传统组合“驯龙”采用了以人物设置为前提的方法,由于其编排的原型是盖叫天的一套拳法,编排成身韵组合后,降龙伏虎之势的英雄形象鲜明活脱。教学是一个由浅入深,再深入浅出的过程,其最终目的是要将风格性融入一切舞姿与技术技巧中,表现在节奏处理、起始连接、点线处理、动势渲染、内在修养等诸多方面,以达到以神带形、以形传神的目的。它是沟通课堂教学与舞台表演的桥梁。     

快节奏形势下高校素质选修课出现的问题及改进探讨

在强化素质教育的大背景下,素质选修课的开设成为高校教育的重要内容和环节。随着现代生活节奏加快,走在思想前沿的大学教育受到冲击,素质教育课的实践效果也出现相应的问题,本文就此类现象加以分析和探讨。     

韵律教学在大学体育教育中的应用

近年来,韵律活动在社会上越来越普遍,各年龄层的人对韵律活动都有着很大的热情。为了有效地促进课堂教学水平,体育教师越来越重视韵律教学并把它带入体育课堂。现在它基本已经被运用在所有的体育教学中。实践证明韵律教学也可以陶冶学生情操,提高学生的学习兴趣,使体育课堂充满轻松愉快的氛围。体育教学应该结合大学生的年龄,考虑学生的性格特点,从实际情况出发,在体育教学中合理的运用韵律教学的方法,促进学生生动活泼,既能接受知识又使学生在课堂上享受到轻松愉快的氛围。     

环境因子对银杏香菇生长的影响

本文通过对银杏香菇在不同温度、相对空气湿度、光照环境因子变化试验,结果是：银杏香菇在20~25益时,菌丝体及子实体生长最好;空气相对湿度在70~75%时,菌丝体生长快,分布均匀。子实体生长阶段,空气相对湿度为85~90%最适宜;光照遮光度在80%时菇体厚实,菌盖圆整。     

Biodeterioration of Incralac used for the protection of bronze monuments

Outdoor bronze sculptures are highly susceptible to corrosion in many environments and organic coatings are widely used for their protection. The purpose of this study was to determine the susceptibility of the commonly used coating Incralac to biodeterioration by microorganisms. A yeast was isolated from a bronze statue treated with Incralac and its ability to degrade Incralac was determined using growth curves, scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). The organism grew slowly on Incralac in liquid culture, but SEM images demonstrated its ability to adhere to Incralac coated metal. Additionally, the yeast caused a rapid drop in the low frequency impedance of Incralac coated metal that was not observed under sterile conditions, indicating that the organism accelerated deterioration of the coating. The potential for microbial growth to accelerate deterioration of Incralac should be considered when developing a maintenance strategy for the protection of outdoor metal monuments.     

体育院系跨栏跑教学运用速度节奏法的实验研究

如何迅速形成以速度为核心的跨栏跑是田径技术教学改革的一个现实问题。本文采用教学对比实验方法,实验结果表明:新教法教学效果明显优于传统教法。