树qu(Tupaia belangeri)淋巴细胞的自体花结

花结试验表明, 树qu的外周血淋巴细胞(TPBL)和胸腺细胞都能形成A 花结, 结花率分别为20.9%和11.1%; 而绵羊红细胞花结(E花结)形成率分别是20.9%和1.1% 。以4种单克隆抗体(McAb)(Leu 5,0-275, AICD2.1和E_(2)McAb)进行树quA花 结和E花结的抑制与抗原调变试验,结果表明, 这些抗体对树qu的A花结都没有明 显的抑制或调变作用, 但对E花结的抑制及调变作用明显。图1表2参22

中国现生六种非人灵长类和树qu大脑两半球不对称性的比较研究

对懒猴、猕猴、灰叶猴、川金丝猴、滇金丝猴、长臂猿以及与灵长类关系密 切的树qu的大脑两半球形态、功能的不对称性以及由此引起的行为不对 称性进 行了研究。上述几种动物均存在大脑两半球不对称现象, 认为这种不对称性可 能经历了长期演化历程。图4参25

云南、广西树qu乳酸脱氢酶(LDH)同功酶的比较研究

用同功酶丙酰胺圆盘电泳技术, 对云南昆明、广西南宁和瑶山三种树qu的六 种组织(心、肝、肺、脾、肾和肌肉)的LDH作了比较分析, 其酶谱表现出组织 的异质性, 但 无性别的差异。不同产地的树qu的LDH同功酶酶谱也出现一定的差 异。这三种树qu似应为三 个亚种。图4表3参18

蛋白质含量不同的饲料对树qu氮平衡的影响

五组成长期的树qu, 分别喂从以蛋白质含量为10%、15%、20%、25%和30%的 配合饲料,为时15d。统计学分析各组日均氮沉积量和沉积率差异极为显著(P<0.01) 。表明树qu饲料中蛋白质的含量以25%较为合适。按采食量折算生长树qu每日每千克体重应进食52.0—62.0克蛋白质。图2表9参9

树qu(Tupaia belangeri chinensis)的脊神经丛

树qu脊神经丛的研究结果: 颈丛恒定由C_(2-4)组成, 但各条神经的组成不十分恒定; 没有真正的舌下袢, 支配肩胛舌骨肌、胸骨舌骨肌和胸骨甲状肌的神经仅来自C_(10); C_(4)和C_(5)为膈神经的恒定成分, 其变化范围为C_(3-7); 臂丛由C_(5)-T_(2)组成, 结合为三干三索; 肩胛上神经在组成上有变化, 可由C_(5,6)或C_(5-7)组成; 腰骶丛由L_(1)-S_(2)或L_(2)-S_(2)组成;腰骶丛各条神经的组成有一定的变化, 似乎没有一条神经在其神经根组成上是恒定不变的。图5参21

树qu精母细胞联会复合体的电镜观察

利用界面铺张-硝酸银染色技术, 对树qu精母细胞联会复合体电镜观察结果 表明, 常染色体联会复合体的相对长度和着丝点指数与体细胞染色体的相应参数具有很好的吻合性。性染色体联会复合体的形态和行为与灵长类的十分相似,并对此进行了比较和讨论。图版2图1表1参9

树qu(Tupaia belangeri Chinensis)的动脉

中国树qu动脉系的主要特征与树qu科中的其他种类如笔尾树qu、普通树qu和 地树qu等的动脉系极为相似,而与灵长类中的猿猴类有较大差异。图4参14

树Qu(Tupaia belangeri Chinensis)卵巢的显微结构及不同季节的卵巢活动

树Qu卵巢的间质腺组织稀少,但普遍有“睾丸索”型的髓质索结构。卵泡发育过程类似于大多数哺乳类和灵长类。孕期黄体和副黄体结构见于7月份 ,10月份未见孕期卵巢结构,多数卵巢缺乏生长活性的大囊状卵泡的发育,表明树Qu的卵巢活动同睾丸的精子发生一样,有季节性变化。图版1表3参14

盘qu属鱼类口吸盘的形态分化及其意义

具大、小吸盘的两个类群是盘qu鱼类在演化进程中分化成的两个自然类群, 它们为适应不同的栖息环境, 吸盘的微观结构和须的长短等进一步分化, 分化途径在两个类群各不相同。图版2参9

云南盘qu口吸盘发育、表面亚显微结构及功能

云南盘qu口及盘发育可划分为5个时期。在野外观察和室内饲养观察相结合、宏观和微观形 态比较相结合的基础上, 阐述口吸盘的功能和适应意义。口吸盘是抵御急流冲击的吸附器官和运动辅助器官, 在取食活动中的作用不可忽视。图版1图1参6

树qu红核的细胞构筑和红核脊髓束的起源

用Nissl法染色和HRP注入树qu脊髓的不同节段,结果表明,树qu红核和上丘高度向吻侧延伸至乳头体内侧核尾端,细胞柱呈梭状,长约3.7mm,最大处直径2mm。它由大(60-100#mu#m)、中(30-50#mu#m)和小型(10-25#mu#m)细胞构成。红核吻段大细胞较多,占60.7%,中尾段中小型细胞多,占71.7%,, 中、小细胞散在分布于大细胞之间。树qu的红核-脊髓束主要由对侧红核大、中和小型细胞发出的纤维组成;红核吻段背侧部,中尾段的腹部、腹中部和腹中背部细胞发出的纤维交叉投射到颈吻段;红核吻、中、尾段的腹部、腹中部和腹中背部细胞发出的纤维还投射到对侧颈尾段;红核中尾段的腹部、腹中部、腹中背部细胞也有纤维交叉投射到腰段;只有红核吻段和尾段少量细胞发出的纤维投射到同侧颈段。

Heteroepitaxial gold (111) rings on mica substrates

Two-dimensionally arranged gold rings were prepared by depositing a polymeric membrane bearing a dense array of uniform pores onto a mica substrate, filling the pores with a solution of a gold precursor, evaporation of the solvent and calcinations. The epitaxy of gold rings is confirmed by x-ray diffraction measurements, and the epitaxial relationship between gold rings and the mica was found to be Au(111)[1-10]parallel to mica(001)[010]. The polar and azimuthal angular spreads are 0.3 degrees and 1 degrees, respectively, which is at least equal to or better than the quality of the corresponding epitaxial gold-film on mica. (c) 2005 American Institute of Physics.

Adsorption behaviors of methanol, ethanol, n-butanol, n-hexanol and n-octanol on mica surface studied by atomic force microscopy

The adsorption behavior of methanol, ethanol, n-butanol, n-hexanol and n-octanol on mica surface was investigated by atomic force microscopy. All these alcohols have formed homogeneous films with different characteristics. Upright standing bilayer structure was formed on methanol adsorbed mica surface. For ethanol, bilayer structure and monolayer one were simultaneously formed, while for n-butanol and n-hexanol, rough films were observed. What was formed for n-octanol? Close-packed flat film was observed on n-octanol adsorbed mica substrate, the film was assumed to be a tilted monolayer. The possible adsorption model for each alcohol molecule was proposed according to its adsorption behavior.

Direct patterning of rhodamine 6G molecules on mica by dip-pen nanolithography

Dip-pen nanolithography (DPN) has been developed to pattern monolayer film of various molecules on suitable substrate through the controlled movement of ink-coated atomic force microscopy (AFM) tip, which makes DPN a potentially powerful tool for making the functional nanoscale devices. In this paper, the direct patterning of rhodamine 6G on mica by dip-pen nanolithography was demonstrated. R6G features patterned on the mica was successfully achieved with different tip movement which can be programmed by Nanoscript(TM) language. From the AFM image of R6G patterns, we know that R6G molecule is flatly binding to the mica surface through electrostatic interaction, thus stable R6G nanostructures could be formed on mica. The influence of translation speed and contact time on DPN was discussed. The method can be extended to direct patterning of many other organic molecules, and should open many opportunities for miniaturized optical device and site-specific biological staining.