Predicting transition and adjustment to college: biomedical and behavioral science aspirants’ and minority students’ first year of college

The purpose of this study is to explore key factors that impact the college transition of aspiring underrepresented minority students in the biomedical and behavioral sciences, in comparison with White, Asian students and non-science minority students. We examined successful management of the academic environment and sense of belonging during the first college year. Longitudinal data were derived from the Higher Education Research Institute’s (HERI) 2004 Cooperative Institutional Research Program (CIRP) Freshman Survey and the 2005 Your First College Year (YFCY) Survey. Using a reformulation of the integration model (Nora, Barlow, and Crisp, 2005), we find concerns about college financing, negotiating family support and responsibility, and campus racial dynamics (perceived and behavioral) affect student adjustment and sense of integration in the first year. This study was made possible by the support of the National Institute of General Medical Sciences, NIH Grant Number 1 RO1 GMO71968-01. This independent research and the views expressed here do not indicate endorsement by the sponsor.     

论远程考试

远程考试是远程教育发展的必然要求,是考试改革发展的必然要求。基于远程考试的法律基础、技术基础和社会基础,远程考试必须坚持科学性原则和以人为本的原则。     

Tandem Biocatalysis by CotA-TJ102@UIO-66-NH2 and Novozym 435 for Highly Selective Transformation of HMF into FDCA

2,5-Furandicarboxylic acid(FDCA) is a potential biorenewable chemical for applications including plastics, polyamides, drugs, etc. The selective biosynthesis of FDCA from 5-hydroxymethylfurfural(HMF) by a specific enzyme poses a great challenge. In this study, we reported an efficient strategy to produce FDCA from HMF by the tandem biocatalysis of laccase(Cot A-TJ102@UIO-66-NH_2) and Novozym 435. For the first step, a nanoparticle metal–organic framework was synthesized as a carrier to immobilize Cot A-TJ102@UIO-66-NH_2, which was assigned for the production of 5-formyl-2-furancarboxylic acid(FFCA) and featured an enzyme loading of 255.54 mg/g, specific activity of 135.90 U/mg, and solid loading ratio of 99.65%. Under optimal conditions, an ideal FFCA yield of 98.5% was achieved, and the Cot A-TJ102@UIO-66-NH_2 presented a high recycling capacity after 10 cycles. For the second step, Novozym 435 was applied for the further conversion of FFCA into FDCA, presenting a high FDCA yield of 95.5% under the optimized conditions. Novozym 435 also exhibited a high recyclability after eight cycles. As a result, the tandem biocatalysis strategy provided a 94.2% FDCA yield from HMF, indicating its excellence as a method for FDCA production.     

试论吴宓的孔教观

在新文化运动后期,吴宓受西方新人文主义的影响,针对新文化运动和孔教活动,站在与新文化运动反孔批儒相对立的立场,通过学理辩析,凸现孔子在中国文化的中心地位,阐明孔教是一种具有宗教性的人文道德学说,并站在中西古今文化比较的高度,提出了以孔教为基础,融合世界上其他宗教和哲学的中国文化重建构想,这对于我们今天正确理解孔子儒学以及儒教的本质有重要参考价值和思想启迪.     

试探解决中国乡村教育边缘化问题的对策

本文依据中国乡村教育边缘化的事实和特征，对现行乡村教育管理体制进行了结构功能分析，阐述了全球化与中国乡村教育边缘化的内在关联，提出了建立九年一贯制乡村学校、校长民主选举制、“喷灌式”乡村教育财政体制、乡村教师自治委员会基础上的校长负责制的乡村教育人、财、事的管理体制，以应对全球化的挑战。     

A long-term experiment to investigate the relationships between high school students’ perceptions of mobile learning and peer interaction and higher-order thinking tendencies

In this study, a one-year program was conducted to investigate the relationships between students’ perceptions of mobile learning and their tendencies of peer interaction and higher-order thinking in issue-based mobile learning activities. To achieve the research objective, a survey consisting of eight scales, namely, usability, continuity, adaptive content, collaboration, communication, problem-solving, critical thinking and creativity, was developed. A total of 658 students from 38 high schools in Taiwan filled in the questionnaire after experiencing issue-based mobile learning activities. From the exploratory and confirmatory factor analyses, it was found that the questionnaire had high reliability and validity. The structural equation model further revealed that the provision of adaptive content in the mobile learning had positive impacts on the students’ tendency to interact with peers (i.e., collaboration and communication), which further affected their tendency to engage in higher-order thinking (i.e., problem-solving, critical thinking, and creativity). The findings of this study provide a good reference for researchers and school teachers who intend to promote mobile learning in school settings.     

水电建设项目风险评价方法概述

水电建设项目受地质、地理位置,气候等一些自然或非自然因素的影响,不可避免地存在诸多风险因素,业界相继对风险识别、风险分析以及风险评价等做了深入研究,但鲜有人概括了水电建设项目前的常用的风险评价方法。通过对水电建设项目前存在的风险评价方法进行概括,在其中提出了一种新的改进的评价方法,并比较分析了各自的适用条件以及优缺点,能为水电建设项目合理选择使用评价方法提供了有效的参考依据,进而能使风险预测与客观实际相接近。     

浅谈情感教育在高职高专英语教学中的应用

情感教育是现代学校素质教育不可忽视的重要方面和核心内容,在高职高专英语教学中,针对学生特点融入情感教育,对于开发学生的身心潜能、培养学生的创新素质、提高教师教学素养、优化教育教学过程,深化学校素质教育具有关键性的作用。     

乌兰察布地区胡萝卜优化施肥方案初步研究

本试验通过正交旋转回归设计在乌兰察布地区选取氮、磷、钾和有机肥为参试变量,以胡萝卜产量为目标函数,建立了胡萝卜产量与参试因子间的数学模型,得出了各变量与产量的主次关系及各因素对产量的效应。最后,通过模拟寻优获得了本试验地条件下胡萝卜产量高于6000kg/667m2的施肥方案：N（8.06-8.72kg/667m2）、P2O5（3.89-4.26kg/667m2）、K2O（19.10-20.45kg/667m2）、有机肥（6346-6907kg/667m2）。     

上海生命科学课程课堂教学目标的制定与实施

本文就上海生命科学课堂教学的教学过程提出建议及一些具体做法,以促进新课程理念更好地转化为课堂教学的实践。