FDI对行业环境绩效的影响及门槛效应研究——对2004--2010年江苏省制造业29个行业的实证分析

采用2004--2010年江苏省制造业29个行业面板数据,分析FDI与制造业环境绩效的关系,并从工资水平门槛和环境规制门槛两个角度检验了FDI对环境绩效影响的门槛效应。分析结果表明：FDI与清洁生产型行业的环境绩效正相关,而与污染密集型行业的环境绩效负相关;清洁生产型行业的环境绩效与FDI的环境规制和工资水平均呈现倒“N”型曲线关系,污染密集型行业的环境绩效与FDI的环境规制和工资水平分别呈现倒“u”和正“u”型曲线关系;绝大部分行业没有同时处在工资水平门槛和环境规制门槛的最优区间,总体上存在工资水平较低、环境规制强度较弱的情况。FDI对制造业行业环境绩效存在显著的门槛效应,地方政府应有选择地吸纳能够兼顾经济效益和环境效益的外资投入,在制定相关政策时,切忌盲目地、一刀切地提高或者降低环境规制强度和行业工资水平,可依据门槛最优区间对不同行业的环境规制和工资水平加以相应调整。     

Factors affecting the career progress of academic accountants in Australia: Cross-institutional and gender perspectives

Since the late 1980s, Australian highereducation has undergone significant reforms andpolicy changes based on economic rationalismand modernisation of management. This paperexamines the outcomes of the reform processesbased on the career attributes, status andperceptions of work environment of academicaccountants in Australian universities.Similarities and differences between academicaccountants are explored fromcross-institutional and gender perspectives.The data provide insight into a number ofsystemic inequalities between the older andmore established universities and the neweruniversities. In specific, across-institutional analysis based on fouruniversity types: Sandstones/Redbricks,Gumtrees, Unitechs and New (Marginson 1999)indicates that academic accountants in Newuniversities employ a much lower proportion ofstaff with PhD qualification, a weakerpublication profile, and perceive greaterbarriers for conducting research in terms of ashortage of research mentors, colleagues withresearch experience, and post-graduatestudents. Further, the commitment to flexiblelearning and delivery strategies iscomparatively stronger in Unitechs, and posesadditional demands on accounting academics'overall workload. Perceptions of gender-baseddiscrimination by female academic accountantsare generally stronger than their malecounterparts, particularly, in Newuniversities. These results raise severalissues for academic accountants at both theinstitutional and individual level in terms ofequal employment opportunities, management ofresearch programmes, development of teachingstrategies and individual time management.     

60~#道路沥青的粘温特性测定

本文测定了茂名石化公司生产的60＃道路沥青的粘温特性.得出公式lglg(V 0.6)=8.327-3.042lgT作为该沥青包装、运输、施工等的工作参数.同时采用较简便的混合法测定沥青的粘温特性.     

Performance‐approach goals,task‐avoidant behaviour and conceptual knowledge as predictors of first graders’ school performance

The present paper aims to examine the relationship between first grade children’s performance‐approach goal orientation, task‐avoidant behaviours, conceptual knowledge and their achievement in maths and literacy. The sample consisted of 174 first grade children and their class teachers. Children’s self reports of their performance‐approach goals and avoidant behaviours as well as teacher‐reports of children’s avoidant behaviours were used. Our results indicate that performance‐approach goal orientation positively predicts children’s self‐reported task‐avoidant behaviours which in turn have a negative effect on children’s achievement outcomes. The negative effect of teacher‐rated avoidant behaviours on children’s achievement outcomes was even greater than the positive influence of children’s conceptual knowledge. These results suggest that the relationships between goal‐orientations, achievement behaviours and achievement outcomes start to form early in children’s school career (or even before that) and that children’s self‐report of their achievement goals and behaviours provide a valuable knowledge already in this early age.     

心理学专业学生人格特征对其学业成绩的影响

本研究采用卡特尔16种人格因素量表(16-PF)和艾森克人格问卷(EPQ)对187名心理学专业学生进行人格特征调查,探讨心理学专业学生的人格特征对其学习成绩的影响。结果表明:(1)心理学专业学生的聪慧性、兴奋性与学习成绩呈正相关(ps<0.01);世故性与学习成绩呈负相关(ps<0.01)。(2)心理学专业学生神经质、精神质人格与学习成绩呈显著负相关(p<0.01,p<0.05)。     

紫外诱变酿酒酵母筛选耐高温菌株

以实验室保存的酿酒酵母为初始菌株,采用紫外分光光度法测定菌株浓度,绘制出菌株生长曲线,由此确定出最佳诱变菌龄为3～10h,在此期间利用紫外线对菌株进行诱变,筛选出一株适于在高温下发酵的菌株,紫外线诱变条件为：紫外灯功率10w,照射距离30cm,照射时间3min。此菌株在37℃下培养72h,其成熟发酵醪酒精产率为3．837％。     

不同烘烤阶段温湿度改变对 K326烟叶品质的影响

为探求 K326中上部烟叶最适宜的烘烤工艺模式,研究不同烘烤温度与升温速度对 K326中上部烟叶烤后品质及等级结构的影响．结果表明,T2处理为最佳烘烤工艺,即中部烟叶变黄期温度39～42℃、湿球温度36℃;定色期以平均2 h 升温1℃的速度提高到温度55℃、湿球温度37～38℃;干筋期温度68℃、湿球温度40℃．上部烟叶变黄期温度38～42℃、湿球温度36℃;定色期温度47～55℃、湿球温度38℃;干筋期温度68℃、湿球温度41℃．T2处理的烟叶橘黄,油分多,身份适中,色度强;烟叶总糖、还原糖、烟碱含量适中,内在化学成分更加协调;感官质量香气量足,香气质细腻,烟气醇和度、舒适性最好;烟叶中上等烟比例、均价、正组烟叶比例提高．说明在烘烤过程中对温湿度及升温速度的调整是有效的,能有效改善烟叶内在品质,提高烟叶工业可用性．     

树脂浓度对三维针刺CFRP复合材料显微结构的影响

以三维针刺碳毡作为预制体,采用树脂浸渍-热压固化工艺快速制备了碳纤维增强树脂基复合材料(Carbon fiber reinforced polymer,CFRP)。通过光学和扫描电子显微镜观察了材料的显微结构,使用阿基米德方法测定材料的密度和气孔率,并利用压汞仪分析了材料的孔隙分布。主要研究了树脂浓度对CFRP复合材料显微结构的影响,结果表明,当树脂浓度由1.0增大到1.8时,材料的开气孔率由9%降低为3%,密度由1.40 g/cm3增大到1.45 g/cm3。树脂浓度1.0所制得CFRP-1材料束间孔隙尺度较大,但其他区域均比较致密;而树脂浓度增大到1.8所制得的CFRP-2材料更为致密,但由于热压固化过程残余的热应力未能及时释放,CFRP-2材料包含纤维-基体界面脱粘和纤维束内部的贯穿裂纹。