苏轼诗注辨正

在苏轼诗的各种当代选注本中,陈迩冬先生选注的《苏轼诗选》,是出版较早、质量较高、影响较大的一种,但其中也有一些误读。对其加以辨正,有助于学人。     

拍卖诚信岂同儿戏？

近几个月来，北京接连发生两起知名画家打假事件，但最终结果却截然相反。7月，著名画家史国良在雅昌艺术网发现北京传是拍卖公司准备上拍他的三幅作品，细一看其中两件是伪作，他立即通知拍卖方要求撤拍。但拍卖公司置之不理，假画依然出现在拍卖预展并进行了拍卖，史国良一怒之下于8月23日在新浪网开博客打假。几天之后，吴冠中通过朋友寄来的拍卖图录得知，北京圣天阁文升拍卖公司在9月17日举办吴冠中作品专场拍卖，其中的21幅速写、1幅油画、1幅水粉画、1件水彩画竟然无一真迹，全部是假的。8月28日吴冠中致电该公司称即将拍卖的画作不是他的真迹，要求撤拍。出于对画家的尊重和维护公司的声誉，该公司决定立即终止这场拍卖会。     

CUBA与NCAA的比较研究

通过查阅文献、比较分析等方法,对CUBA与NCAA的赛事、运动员选材、文化学习、运动训练、教练员等方面进行比较,并提出建议。     

新型师生关系的涵义及其构建途径

目前,新型师生关系的建立越来越受到人们的关注,师生关系的和谐与否已经成为制约课堂教学的关键因素。在我国,影响建立民主、平等师生关系的因素主要有三个:(1)“二元对立”的思维方式;(2)传统的师道观念;(3)教学评价方式。为了重构课堂教学中和谐、民主的新型师生关系,就必须改变我国传统的教育理念,加强教师的道德修养,以及构建新型的课堂,通过这一系列措施的实施来切实改变我国课堂教学的现状。     

Hypertonic saline resuscitation reduces apoptosis of intestinal mucosa in a rat model of hemorrhagic shock

Objective: To investigate the early effects of hypertonic and isotonic saline solutions on apoptosis of intestinal mueosa in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was established in 21 Spragne-Dawley (SD) rats. The rats were randomly divided into the sham group, normal saline resuscitation (NS) group, and hypertonic saline resuscitation (HTS) group, with 7 in each group. We detected and compared the apoptosis in small intestinal mucosa of rats after hemorrhagic shock and resuscitation by terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL), FITC (fluo-rescein-iso-tbiocyanate)-Annexin V/PI (propidium iodide) double staining method, and flow cytometry. Results: In the early stage of hemorrhagic shock and resuscitation, marked apoptosis of small intestinal mucosa in the rats of both NS and HTS groups was observed. The numbers of apoptotic cells in these two groups were significantly greater than that in the sham group (P＜0.01). In the HTS group, the apoptic cells significantly decreased, compared with the NS group (P＜0.01). Conclusion: In this rat model of severe hemorrhagic shock, the HTS resuscitation of small volume is more effective than the NS resuscitation in reducing apoptosis of intestinal mucosa in rats, which may improve the prognosis of trauma.     

中职学校数学课程改革的思考

经济的发展需要大量高素质的技术工人与中职生源质量大幅度下降的矛盾日益突出,中职数学课程的普教化和学生的厌学情绪越来越严重。面对这种现实,中职数学课程必须改革。在改革过程中,必须以学生为本,以社会需求为本,突出“实用、够用、生动”,着力培养学生学习数学的兴趣和良好的学习习惯。     

高职院校学生艾滋病知识和态度的调查及启示

调查表明,高职院校学生对艾滋病病原、致病机理、传播途径及艾滋病在我国的流行情况等方面有较高的认知水平,但在对待艾滋病患者的态度上,有相当一部分学生持鄙视的态度或觉得“令人恐惧”,提示我们应加强艾滋病的健康教育,以增进大学生艾滋病预防知识,改善其对待艾滋病患者的态度。     

鱼类血液电流变特性的初步研究

本文测定了白鲢和花鲢的ηs(b),Kb,EPM ESR和Hct等5个反映血液电流变性质的参数,并分析了它们之间的回归相关关系的形态,发现ηs(b)与Kb,Kb与Hct的回归相关形态与人类血液所具有的形态基本相似,不同的是,鱼血液的Kb与Hct的回归曲线是常用指数函数型,而人类则是自然指数函数型;鱼类也存在受红细胞膜表面电荷数量多寡左右的“电粘度”效应,ηs(b)和EPM二参数的回归关系形态是线性的。本文还讨论了鱼类红细胞的聚集性问题,指出ESR随EPM的增大而按对数规律减小。     

Immune recovery after fluid resuscitation in rats with severe hemorrhagic shock

Objective

To investigate the effects of resuscitation with normal saline (NS), hypertonic saline (HTS), and hydroxyethyl starch (HES) on regulatory T cells (Tregs), helper T 1 (Th1)/Th2 and cytotoxic T 1 (Tc1)/Tc2 profiles in the treatment of hemorrhagic shock.

Methods

Rats subjected to severe hemorrhagic shock were resuscitated for 30 min with NS (n=8), HTS (n=8), or HES (n=8); sham (n=8) and naive control (n=8) groups were used for comparison. Following fluid resuscitation, the whole shed blood was reinfused for 30 min, and the rats were observed with continuous hemodynamic monitoring for 120 min. CD4⁺CD25⁺Foxp3⁺ Treg proportions, Th1/Th2 and Tc1/Tc2 profiles in spleen were analyzed by three-color flow cytometry.

Results

The proportion of CD4⁺CD25⁺Foxp3⁺ Tregs and ratios of Th1/Th2 and Tc1/Tc2 did not differ among control, sham, and HTS groups, but were significantly lower in NS and HES groups (both P<0.05 vs. sham); NS and HES levels were similar. The level of Tc1 was significantly increased in HTS (P<0.05 vs. sham), and levels of Tc2 were increased in NS, HES, and HTS groups compared to sham (all P<0.05), but did not differ from each other.

Conclusions

HTS resuscitation has a greater impact on immune system recovery than NS or HES by preserving the proportion of Tregs and maintaining the balance between Th1/Th2 and Tc1/Tc2 cells in the spleen. Thus, HTS resuscitation provides potential immunomodulatory activity in the early stage after hemorrhagic shock.

     

黄淮白山羊心脏冠状动脉形态特征研究

目的:观察黄淮白山羊心脏冠状动脉的形态学特征,为其研究提供基础资料.方法:选择成年健康黄淮白山羊10头,采用颈静脉放血方式处死,其中6只心脏取不同管径大小的冠状动脉,多聚甲醛溶液固定,经水洗、脱水、二甲苯透明,石蜡包埋以HE、Masson三色及Verhoeff VG染色等步骤,观察冠状动脉的基本组织结构特点;另4只心脏标本经左、右冠状动脉口分别加压注入丁腈苯乙烯(ABS)丙酮溶液,经凝固成型后于70%浓盐酸溶液中腐蚀,观察冠状动脉的分支与分布.结果:黄淮白山羊的心脏左、右冠状动脉均起自于主动脉窦,行走于肺动脉与左心耳之间的左冠状动脉较粗大.黄淮白山羊弹性冠状动脉中弹性纤维含量丰富,外膜层有散在分布的块状平滑肌;肌性冠状动脉内外弹性膜结构清晰,中膜层主要由发达的平滑肌构成,含少量弹性纤维;微冠状动脉由一层内皮细胞构成.结论:黄淮白山羊冠状动脉属于左优势型,可分为弹性冠状动脉、肌性冠状动脉和微动脉三种类型.