论大学本科课堂教学中“扯”的能力培养及其发展

在大学本科课堂教学中,有目的及有准备地适当“闲扯”能够激发学生学习兴趣,使其保持持续有效的学习状态;能够拓 展学生知识面,调整学生知识结构;同时也能促进学生对相关知识的认识,强化相关知识的记忆。在本科课堂教学中,“扯”的 内容准备应与所授课程基本知识有直接或间接联系;应具有时代感,能引起学生的兴趣;同时,也应提供针对性评论,最好能在 学生中形成共鸣。本科课堂教学中“扯”的时间长度应控制在适度范围内。“扯”在大学本科课堂教学中是一门“艺术”,只有经 过时间的锤炼与经验的积累,大学教师“扯”的能力才能相对成熟,“扯”的实际效果才能充分展现。     

Do Preparation for Bias and Cultural Socialization Protect Against Discrimination for Transracially Adopted Adolescents?

This study of transracially adopted adolescents and their White parents examines the role of two types of parental racial socialization, preparation for bias and cultural socialization, in protecting adoptees from the impact of discrimination. Sixty-six transracially adopted adolescent–parent dyads in the United States completed an online questionnaire. Preparation for bias, and not cultural socialization, protected transracial adoptees from discrimination-related stress, in particular when experiencing high levels of racism. The importance of parents talking to their transracially adopted adolescents about racism and how to cope with it and the value of researchers examining types of racial socialization separately as opposed to broadly are discussed.     

零售企业创业理性思考

零售企业创业前的理性思考与充分准备是提高创业成功率的重要保障。本文在阐述零售企业创业理性的必要性、创业所面临困境的基础上，提出了零售领域创业者创业前需做好的准备工作。     

Exploratory Analysis of Factors Associated with Participation in Self-Directed and Traditional Marriage and Relationship Education

Although self-directed marriage and relationship education (MRE) has the potential to reach a larger or different audience than traditional MRE, little has been done to examine the characteristics of self-directed MRE participants. This study examined whether various individual, couple, family, and sociocultural context variables predicted participation in both self-directed and traditional MRE programs. A series of logistic regressions were conducted on a cross-sectional data set. Different factors predicted participation for each intervention. For self-directed programs, factors predictive of involvement included older age, religiosity, higher education, being more self-regulated, having a neurotic partner, more open relationship boundaries, a history of divorce, more relationship problems, and more family-of-origin problems. A wider range of factors predicted participation in traditional programs. Some factors increasing odds for participation in one intervention decreased odds in the other. Implications for MRE are discussed. This study provides evidence that some higher risk couples may choose self-directed MRE over more traditional programs.     

胶囊破胶剂的介质分散分相法制备研究

针对压裂施工过程中破胶过早的问题，以过硫酸铵为芯材，选用适宜的聚合物为囊衣材料，采用分散分相法制备胶囊破胶剂。通过比较，确定了聚乙烯醇（PVA）和乙烯醋酸乙烯共聚物（EVA）为较好的囊衣材料，通过正交实验研究了两种胶囊破胶剂的制备工艺。结果表明：搅拌速率、温度、衣材与囊芯的质量比、衣材溶液和分散剂的质量分数对胶囊破胶剂性能有较大影响。制备PVA胶囊破胶剂的最佳条件为:温度25℃，搅拌速率270r/min，衣材与囊芯的质量比2:8，分散剂用量为1%；制备EVA胶囊破胶剂的最佳条件为:温度25℃，搅拌速率300r/min，衣材溶液和分散剂的用量为5%和2%。     

熔体发泡法制备泡沫铝工艺研究

本文对熔体发泡法制备闭孔泡沫铝的工艺进行了初步探索.通过调整工业纯铝的熔炼温度、搅拌速度、搅拌时间、保温时间和增粘剂、发泡剂的加入方式等工艺参数,得到了孔隙率为40%~70%、孔径比较均匀的泡沫铝样品,同时分析了各工艺参数对泡沫体形成的作用及影响.     

教唆犯的未完成形态比较研究

教唆犯的未完成形态即教唆犯的预备、未遂和中止。在比较德国、日本、俄罗斯等大陆法系国家刑事立法和刑法理论的基础上，结合我国《刑法》规定及刑法学界的通行观点，独立教唆犯有成立预备犯的可能。教唆犯的二重性决定了教唆犯的未遂有时表现为未实行终了的未遂，但更多的表现为实行终了的未遂。教唆犯成立犯罪中止并不一定要以自动有效地制止被教唆者的犯罪行为或有效防止被教唆者犯罪行为可能发生的犯罪结果为必要条件．教唆犯甚至无需采取任何措施也可成立中止犯。     

氟化钕的制备条件及组成研究

探讨了以碳酸氢铵转型制备氟化钕工艺中的有关影响因素。用Ｘ射线衍射分析、Ｘ射线荧光光谱分析、电镜及热分析等方法对产物进行了表征。研究结果表明在选定的条件下，氟化钕沉淀速度快，容易过滤洗涤，稀土收率高，产品纯净     

利用废镍铬合金电阻丝制备硫酸镍和铬矾

报道了一种利用废镍铬合金电阻丝回收制备硫酸镍和铬矾的方法。     

Ti3+自掺杂纳米TiO2的制备、表征与可见光催化活性

以Ti H2和H2O2为原料,采用水热法制备了米粒状Ti3+自掺杂的TiO2纳米颗粒.采用X-射线衍射(XRD)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)和X-射线光电子能谱(XPS)对所制备样品的结构、结晶性、形貌和元素的存在状态进行了表征分析.电子顺磁共振谱(ESR)结果表明所制备的样品中含有晶格Ti3+和表面Ti3+.紫外—可见(UV-Vis)漫反射光谱表明这种Ti3+自掺杂的纳米TiO2在可见光区中有较强的吸收.在可见光辐射下,所制备的样品具有优于商业化P25 TiO2的光催化分解水和光催化降解次甲基蓝(MB)溶液的性能.其中160℃下水热处理27 h所得样品光催化降解MB的性能是P25 TiO2的9倍,而光催化分解水制氢的性能是P25 TiO2的12.5倍.