美国黑人文学中女性形象的演变

黑人文学是美国文学的一个重要分支,也是美国文学中最敏感的问题之一。美国的黑人女性背负着性别与种族歧视的双重压迫,美国黑人文学中的女性形象具有其独特的特征。本文试图循着历史的轨迹,对美国黑人男作家和黑人女作家的作品中的女性形象做具体分析,探讨美国黑人文学中的女性形象从＂扁＂到＂圆＂的发展过程。     

传统的桎梏与传统的悲剧色彩——解读莫里森笔下的黑人女性传统

非洲裔美国人一直受到种族主义的困扰,而作为黑人女性更是受到种族和男权的双重压迫。着重关注莫里森笔下在双重重压下的黑人女性受到的传统的桎梏以及恪守传统观念带来的悲剧色彩,为黑人女性的生存发出质问。     

Male teacher shortage: black teachers’ perspectives

In this paper the authors draw on the perspectives of black teachers to provide a more nuanced analysis of male teacher shortage. Interviews with two Caribbean teachers in Toronto, Canada, are employed to illuminate the limits of an explanatory framework that foregrounds the singularity of gender as a basis for advocating male teachers as role models. The study concludes that educational policy attempting to address male teacher shortage would benefit from engaging with both analytic frameworks and empirical research that is capable of unravelling the politics of representation and intersectionality as they relate to addressing questions of male teacher shortage in elementary schools.     

徽州园林艺术再论

徽州园林由山水、花木、建筑、书画四大要素构成。就其山水而言,包括自然山水与人工山水,二者均富于动静、软硬、黑白之美。徽州园林重视叠山理水。就叠山而,其假山具有瘦、透、漏、皱、怪的特点;就理水而言,其池、瀑、泉的营造,均崇尚自然。     

黑色幽默特点探析

从黑色幽默的几部学代表作品可以看出,黑色幽默具有以下几个显特点：幽默与恐惧相结合,但这两种成分的份量并不是对等的,而是成反比例增减的。情节混乱无序,但无序的下面掩盖着的是一个完整的框架,读可以从无序中建造有序。以游戏字为特色的语言风格。     

论“黑哨”行为的法律性质

“黑哨”行为不仅损害了裁判员职务行为的廉洁性,而且已经严重影响了我国职业体育的健康发展。对“黑哨”行为的惩治,关键在于对“黑哨”行为的法律性质的确定。     

磁场对绿豆芽长及超氧化物歧化酶的实验研究

用恒定强度的磁场(1T)对绿豆进行不同时间的处理,得出了不同磁场处理时间和培养时间对绿豆芽长和超氧化物歧化酶(SOD)活性的影响。实验结果表明:恒定磁场强度下不同处理时间对绿豆的芽长和SOD活性是有影响的,磁场强度为1T时,在6个处理时间中,30 min处理组在每次测量时芽最长。对绿豆的SOD测定表明:经过磁场处理后的绿豆SOD含量产生了明显的差异,培养时间为7 h的实验组在各磁场处理时间下的SOD活性均高于对照组,在培养21 h后差异最大;磁处理具有滞后效应,磁处理短期内并不产生明显的效果;豆芽SOD含量和芽长并不成对应关系。     

职业联赛中裁判"黑哨"行为的经济学分析与制度防范

运用经济学原理,对职业联赛中裁判"黑哨"行为进行了分析和探讨,指出:"黑哨"是球队"寻租"与裁判的"政治创租"与"政治抽租"的结果;当裁判"黑哨"行为的MR=MC时,其实现利润最大化;裁判"黑哨"行为是代理人道德风险的一种表现,当MRm = MCm时,裁判实现道德风险净收益达到最大化;不同风险偏好类型的裁判有着不同的"黑哨"行为选择.为防范裁判"黑哨"行为,建议:推进裁判职业化;加大监督和查处力度;提高裁判执法津贴;促进竞争,末位淘汰;完善财务监督机制,建立、健全有效的激励约束机制等.     

Characterization and RNA2 nucleotide sequence of broad bean wilt virus 2 isolate P158

Broad bean wilt virus 2 (BBWV2) isolate P158 was characterized and the complete nucleotide sequence of viral genomic RNA2 was determined. P158 has 30 nm diameter isometric particles. Double immunodiffusion test suggested that P158 has high antigenicity homology with BBWV2 isolate B935. SDS-PAGE result showed that the coat protein of P158 was comprised of two types of polypeptide with molecular weight of 44.7 kD and 21.9 kD, respectively. The genome of P158 was made up of two RNA molecules with the length of 6.0 kb and 3.6 kb, respectively. cDNA of RNA2 was cloned by RT-PCR and sequenced. RNA2 was composed of 3597 nucleotide (nt) residues excluding the poly(A) tail and contained single long open reading frame extending from nt 230 to nt 3424 in the viral sense RNA, and encoded a polyprotein ofMr 119002 (119K). Comparison of the polyprotein and the counterpart of isolate B935 indicated that the polyprotein was cleaved at Q/G (465/466) and Q/A (867/868), to release three mature proteins: a protein of unknown function, large and small subunit. Sequence comparisons of P158 with fabaviruses showed P158 had very high sequence homology with BBWV2 isolates and patchouli mild mosaic virus, but to a less extent with BBWV1 isolates. Project supported by NSFC (No 39770035; 39900005). The GenBank accession number of the sequence reported in this paper is AF228423.     

当代大学生教育考试诚信的现状与应对研究

文章以当代大学生考试舞弊现象为切入点,选取了具有代表性的三类大学的学生和老师进行问卷调查及采访,运用统计学方法和比较分析方法,分析了大学生考试舞弊的原因和改革出路;研究了现行诚信教育机制存在弊端的根源及机制改革的理论方向;提出“黑箱数据库”的概念,为教育考试诚信机制改革提供了新的思路。