中国闪蛛属一新种记述(蜘蛛目：跳蛛科)

记述了我国闪蛛属１新种：尖闪蛛Ｈｅｌｉｏｐｈａｎｕｓ ｃｕｓｐｉｄａｔｕｓ Ｘｉａｏ,ｓｐ．ｎｏｖ．,标本采自内蒙古包头市,保存于湖南中医学院生物教研室。新种雄蛛腿节突和插入器均尖直,故定名为尖闪蛛。     

吉林省长白山区鞭突蛛属一新种（蜘蛛目：皿蛛科：微蛛亚科）

本文记述采自我国吉林省长白山区的鞭蛛属一新种,即腹斑鞭突蛛Ｔｒｉｃｈｏｎｃｕｓ ｍａｃｕｌａｔｕｓ ｓｐ．ｎｏｖ．本文测量单位为ｍｍ,模式标本均保存在白求恩医科大学生物教研室。     

中国隙蛛属七新种（蜘蛛目：漏斗蛛科）

隙蛛属Ｃｏｅｌｏｔｅｓ隶属呈漏斗蛛科Ａｇｅｌｅｎｉｄａｅ．本文记述隙蛛属蜘蛛七新种：双轮隙Ｃ．ｓｙｚｙｇｉａｔｕｓ ｓｐ．ｎｏｖ．,月形隙蛛Ｃ．ｌｕｎｉｆｏｒｍｉｓ ｓｐ．ｎｏｖ．,似阴暗隙蛛Ｃ．ｓｕｂｌｕｃｔｕｏｓｕｓ ｓｐ．ｎｏｖ．,弯曲隙Ｃ．ｐａｌｉｎｉｔｒｏｐｕｓ ｓｐ．ｎｏｖ．。     

中国园蛛2雄蛛（蜘蛛目：园蛛科）

首次记述２种中国园蛛－类高居金蛛ＡｒｇｉｏｐｅａｅｈｅｒｏｉｄｅｓＹｉｎｅｔ．ａｌ．１９８９和双隆园蛛ＡｒａｎｅｕｓｐｒｏｍｉｎｅｎｓＹｉｎｅｔａｌ．１９８９的雄蛛。     

中国管巢蛛属六亲新种：（蜘蛛目：管巢蛛科）

本文记述管巢蛛属Ｃｌｕｂｉｏｎａ６新种,即环管巢蛛Ｃｌｕｂｉｏｎａ ｃｉｒｃｕｌａｔａ ｓｐ．ｎｏｖ,以齿管巢蛛Ｃｈｕｂｉｏｎａ ｄｉｄｅｎｔａｔａ ｓｐ．ｎｏｖ,丝歧管巢蛛Ｃｌｕｂｉｏｎａ ｆｉｌｏｒａｍｕｌａ ｓｐ．ｎｏｖ,异管管巢蛛Ｃｌｕｂｉｏｎａ ｈｅｔｅｒｏｄｕｃｔａ ｓｐ．ｎｏｖ．,曲管巢蛛Ｃｌｕｂｉｏｎａ ｔｏｒｔｕｏｓａ ｓｐ．ｎｏｖ,列管巢蛛Ｃｌｕｂｉｏｎａ ｔｒａｎｓｖｅｒｓａ     

陕西蟹蛛科蜘蛛三新种记述

本文记述陕西秦岭山区蟹蛛科Ｔｈｏｍｉｓｉｄａｅ蜘蛛三新种：高寒花蟹蛛,新种Ｘｙｓｔｉｃｕｓ ａｌｓｕｓ ｓｐ．ｎｏｖ．,太白峭腹蛛,新种Ｔｍａｒｕｓ ｔａｉｂａｉｅｎｓｉｓ ｓｐ．ｎｏｖ．,秦岭峭腹蛛,新种Ｔｍａｒｕｓ ｑｉｎｌｉｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ,。     

中国南方漏斗蛛三新种（蜘蛛目：漏斗蛛科）

本文记述神农架地区隙蛛属和蟋蛛属的蜘蛛三新种：珍珠隙蛛Ｃｏｅｌｏｔｅｓ ｂａｃｃａｔｕｓ ｓｐ．ｎｏｖ．;距形隙蛛Ｃｏｅｌｏｔｅｓ ｃａｌｃａｒｉｆｏｒｍｉｓｓｐ．ｎｏｖ．;象牙蟠蛛Ｃｉｃｕｒｉｎａ ｅｂｕｒｎｕｓｓｐ．ｎｏｖ．。     

中国微蛛三新种和一新纪录（蜘蛛目：皿蛛科）

本文记述采自长白山区皿蛛科微蛛亚科３新种和１新纪录种。新种包括：钩镰蛛Ｄｒｅｐａｎｏｔｙｌｕｓ ａｄｕｎｃｕｓ ｓｐ．ｎｏｖ．，圆双突蛛Ｔｉｂｉｏｐｌｏｉｄｅｓ ｃｙｃｌｉｃｕｓ ｓｐ．ｎｏｖ．和具结荫湿蛛Ｈｉｌａｉｒａ ｔｕｂｅｒｃｕｌｉｆｅｒａ ｓｐ．ｎｏｖ．。模式标本均保存于白求恩医科大学生物教研室。     

我国艾蛛属4新种（蜘蛛目：园蛛科）

记述了我国艾蛛属４新种,名称为,柱艾蛛Ｃｙｃｌｏｓａｃｙｌｉｎｄｒａｔａｓｐ．ｎｏｖ畸形艾蛛Ｃ．ｉｎｆｏｒｍｉｓｓｐ．ｎｏｖ．小艾蛛Ｃ．ｍｉｎｏｒｓｐ．ｎｏｖ．,五突艾蛛Ｃ．ｐｅｎｔａｔｕｂｅｒｃｕｌａｔａｓｐ．ｎｏｖ。     

中国屿蛛属一新种（蜘蛛目：皿蛛科：微蛛亚科）

屿蛛属Ｎａｓｏｏｎａ Ｌｏｃｋｅｔ,１９８２为中国新记录属。黑斑屿蛛,新种Ｎａｓｏｏｎａ ｎｉｇｒｏｍａｃｕｌａｔａ ｓｐ．ｎｏｖ．。模式标本保存于白求恩医科大学生物教研室。     

MCM7与RACK1在肺癌中的表达及其临床意义

目的探讨MCM7与RACK1在各类型肺癌中的表达及其相关性。方法收集肺腺癌150例、鳞癌150例、大细胞癌20例和小细胞癌50例及其癌旁正常肺组织石蜡标本,采用免疫组织化学S-P法检测各类型肺癌组织和癌旁正常肺组织中MCM7与RACK1的表达,并分析二者与肺癌临床病理因素的关系。结果 MCM7与RACK1在癌组织中的表达明显高于癌旁正常肺组织;χ~2检验结果显示肺癌中MCM7与RACK1的表达均与肺癌的病理分级、淋巴结转移、组织学分类和临床TNM分期相关;Pearson相关性分析结果显示,肺癌中MCM7与RACK1的表达呈正相关;Kaplan-Meier法分析显示MCM7与RACK1高表达患者生存时间缩短。结论肺癌中MCM7与RACK1的表达呈正相关,二者表达在肺癌中起促进作用,可作为检测肺癌细胞的增殖状态、新的判断预后的重要因子,以其为靶向进行临床治疗的重要指标。     

Life as a professor at a small liberal arts college

We present a look at what it is like to be a professor at a small college: one professor at Grinnell College, one at Oberlin College, and one at Whitman College.     

The Botanic Garden of Trinity College Dublin 1687 to 1987

WYSE JACKSON, P. S., 1987. The Botanic Garden of Trinity College Dublin 1687 to 1987. The first botanic gardens in Europe were Physic Gardens. In Britain the earliest established was at Oxford (1621) and in Ireland at Trinity College Dublin (1687). Apart from a short-lived garden at Harold's Cross the Physic Garden remained in the College until 1806 when land was leased at Ballsbridge.
In 1804 James Townsend Mackay was appointed as gardener in the College, marking a change in the College to pure botany for the first time. The new Botanic Garden was created and cared for by Mackay for almost 60 years. He was succeeded as Curator in 1862 by John Bain, who was followed by Frederick Moore in 1877. In 1879 Moore succeeded his father David Moore as Curator of the Royal Botanic Gardens, Glasnevin. Frederick W. Burbidge then came to the post of Curator from England in 1879.
The Curatorship of the garden was abolished from 1905 to 1981, and the Professor of Botany became Director. In 1967, when the lease of the College's land at Ballsbridge was ending, a new Botanic Garden was established at Dartry and the valuable plant collection was transferred. Today-it has a high national and international reputation and is widely used for botany teaching and research.     

基于激光共聚焦扫描显微技术分析激光对扁藻的影响

本文以亚心形扁藻为样品,波长1 341 nm的Nd∶YAP激光为光源,通过激光共聚焦扫描显微技术,研究Nd∶YAP激光辐照亚心形扁藻对亚心形扁藻叶绿体自体荧光强度和叶绿体面积大小的影响。Nd∶YAP激光辐照后的亚心形扁藻通过488 nm Ar^+激光激发获得亚心形扁藻自体荧光图像及其荧光光谱。结果表明,试验中除(10 W,60 s)辐照剂量组外,其余辐照剂量组均提高了亚心形扁藻的自体荧光强度,且所有的辐照剂量组均增大了亚心形扁藻的叶绿体面积。Nd∶YAP激光可刺激亚心形扁藻的叶绿体发育,促进藻细胞的生长,改善叶绿体光合作用的活性。     

外源硅对干旱胁迫下烟草幼苗生长、叶片光合及生理指标的影响

采用营养液水培法,研究了施用不同浓度外源硅(0、0.5、1.0 mmol/L)对干旱胁迫(10%PEG、20%PEG)下烟草幼苗生长、叶片光合特性和生理指标的影响。结果表明:干旱胁迫严重抑制了烟草幼苗生长和光合作用,膜质稳定性降低和引起氧化应激反应;施用不同浓度外源硅有效改善了干旱胁迫下烟草幼苗生长,均表现为株高、叶面积、根系体积、根系干重和地上部干重等生长指标增加,提高叶绿素a、叶绿素b、叶绿素a+b和类胡萝卜素含量,显著提高净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)并降低胞间CO2浓度(Ci),膜质过氧化产物MDA含量显著降低,提高叶片含水量、膜稳定性系数和渗透调节物质(脯氨酸、可溶性糖)含量,显著提高SOD、POD和CAT等抗氧化酶活性,而且1.0 mmol/L Si处理对干旱胁迫下烟草幼苗生长和生理特性的影响显著优于0.5 mmol/L Si处理。以上结果说明,施用外源硅能提高干旱胁迫下烟草幼苗光合作用、抗氧化和渗透调节能力,缓解干旱胁迫对烟草幼苗的伤害,促进其生长。     

绵枣儿的开花物候与传粉特性

该文对绵枣儿的开花物候与传粉特性进行了研究,分析了绵枣儿的开花进程、开花物候指数、开花物候指数对其生殖成功的影响,重点探讨了绵枣儿对传粉昆虫的种类及其活动规律。结果表明:(1)绵枣儿始花日期为7月中下旬,单株持续时间15 d左右,种群持续时间30~35 d。呈现出"M"型开花物候曲线,其两年的开花同步指数分别为0.862、0.885,表明开花的年际间差异较小。并且分析出植株的相对开花强度分布在30%~60%之间。(2)相关分析表明:绵枣儿的开花数目与坐果数和持续时间呈现出极显著正相关(P0.01),绵枣儿的持续时间与坐果数之间呈现出显著相关(P0.05),而其始花日期与开花数目、坐果数和持续时间并没有显现出相关性,即绵枣儿植株开花的数目越多,其坐果率越高,持续时间也就越长。(3)绵枣儿的访花昆虫总共有14种,可分属为5目10科。其中传粉昆虫有5科10种。该研究结果表明各传粉昆虫在单花停留的时间和其访花频率上呈现出显著的差异,在日访花频率上也差异明显。     

Defining the physician's duty to warn: consensus statement of Ontario's Medical Expert Panel on Duty to Inform

Ontario''s Medical Expert Panel on Duty to Inform was formed to consider the duty of Ontario physicians in circumstances where a patient threatens to kill or cause serious bodily harm to a third party. The panel was concerned about the implications of any duty to inform on the integrity of the physician-patient relationship, particularly with respect to confidentiality. The panel agreed that regulations safeguarding the confidentiality of patient information ought to be changed only if there is a critical reason for doing so, but, after deliberation, the panel members concluded that the need to protect the public from serious risk of harm is a paramount concern that should supersede the duty of confidentiality. The recommendations reported here were endorsed in principle by the panelists and the groups they represented (the Royal College of Physicians and Surgeons of Canada, the Canadian Medical Protective Association, the College of Physicians and Surgeons of Ontario, the Ontario College of Family Physicians and the Ontario Medical Association) and are being implemented by the College of Physicians and Surgeons of Ontario.     

Exemplars and the reproduction of everyday life: The Amherst affair

Frederick Errington is Aaaociate Professor of Anthropology, at Keene State College, New Hampshire. Deborah Gewertz is Professor of Anthropology, at Amherst College, Massachusetts.     

对大学语文的定位和教学现状的思考

列举了当前大学语文教学面临的尴尬现象,并分析其产生的原因。从大学语文的属性和功能入手,重新定位课程,并结合学生的实际,提出了要从教学内容和教学方法上时大学语文教学进行改革。     

Contamination of humic acid by silica gel and sodium bicarbonate

Summary The extent of contamination of soil humic fractions by silica gel, sodium bicarbonate and sodium carbonate was investigated by infrared spectroscopy. Humic fractions were extracted with 0.1 N NaOH from a surface sample of a Davidson soil (Rhodic Paleudult, Reddish-brown Lateritic soil). After careful purification, the humic preparations were characterized by scanning with the Beckman IR-18A spectrophotometer using the micro KBr pellet technique. The spectra of the various humic fractions corresponded to the respective spectra reported in the literature. No indications were obtained for the presence of silica gel, sodium bicarbonate or sodium carbonate. Strong absorption at 1000 cm^-1, as exhibited by non-purified humic acid, could be caused by Si-O vibrations. However, this band disappeared after washing humic acid with HCl-HF.Contribution of the University of Georgia, College of Agric. Expt. Sta., College Sta., Athens, Georgia, USA.Contribution of the University of Georgia, College of Agric. Expt. Sta., College Sta., Athens, Georgia, USA.