心室颤时脑微动脉血管的应力实验

实验测得了猫在心室颤前，后的脑微动脉内径及血压的变化，引入增量应力和应变的概念，计算了在心室颤前后微动脉血管（内径小于１００μｍ）应力与应变的变化规律，并获得了在不同期间内血管的本构方程。     

引进日本席草品种的比较解剖与质量分析

本文报道了对引进日本席草品种“冈山三号”和“伊索拉米”（）地上茎的比较解剖与质量分析研究结果．根据比较解剖，二者都具有大量发达的纤维．有聚集成束的，也有分布于维管束中的．组成较大纤维束的纤维细胞则相互缠绕成束．有限维束成内、中、外三层排列在基本组织细胞中．仅在茎长、粗、颜色、气孔数、基本组织厚度及茎基髓部直径大小等方面存在一定的差异．茎秆中的大量机械组织使支撑能力增加．发达的气腔和髓部为植物提供了良好的通气条件，并加强了茎的弹性和耐压力．并认为茎尖部分枯梢的产生与该处缺乏输导组织有关，且常因开花而使茎秆成为无效草．     

［蒙古］百灵、燕雀和雀鹰生理常数的研究与比较

鸣禽类和非鸣禽类在鸣叫行为和发声核团等结构都存在着明显的差别．为了全面地了解它们的生理特点及其差异，对鸣禽类的［蒙古］百灵、燕雀和非鸣禽类的雀鹰的主要生理常数进行了分析测定与比较。结果表明：三种鸟在体形上有明显的形态学差异，其食性不同，呼吸、体温、心率、血细胞数和血红蛋白值等生理常数指标有显著地差异（Ｐ＜０．０５～０．０１）．鸣禽类的心率较快，而且体形大的鸟、呼吸频率、心率都比体形小的鸟慢。此外、３种鸟的体温在一天内均呈周期性的变化，中午体温最高，晚上体温最低．     

Regulation of the retinal interphotoreceptor matrix Na by the retinal pigment epithelium during the light response

We examined the rabbit retinal pigment epithelium (RPE) for Na transport properties which would allow it to buffer undesirable changes in Na concentrations in the interphotoreceptor matrix (IPM) during light and dark cycles. The RPE is selectivity permeable to sodium. Open and short circuit transport studies with RPE indicate a circulating (choroid to retina and back) Na current which does not compromise the electrical integrity of the blood brain barrier but together with the Na permeselectivity is of sufficient magnitude to buffer both upwards and downwards movements of IPM [Na] during light or dark responses.     

A morphometric study of spermatogenesis in the testes of mice of a senescence accelerated strain

The morphometric parameters of spermatogenic cells in a mouse strain prone to accelerated senescence (SAM-P), a novel murine model of spontaneously promoted aging, were compared with those of a SAM resistant strain (SAM-R) after birth until 40 weeks (mean life span of SAM-P). A mixture of gonocytes and spermatogonia were present in the testis in 1-week-old mice, and no gonocytes were observed in 2-week-old mice. At 6 weeks of age, the absolute number of spermatogonia in SAM-P was 27% greater than that in SAM-R, whereas the cell number in 40-week-old SAM-P was 17% less than in SAM-R. Primary spermatocytes were first observed in 3-week-old animals, and the cell numbers in SAM-P at 3, 5 and 6 weeks were 78%, 31% and 25%, respectively, greater than in SAM-R, whereas the cell number in SAM-P at 40 weeks was 30% less than SAM-R. Round spermatids were first observed in all SAM-P at 4 weeks old, but 20% of SAM-r had no spermatids and the rest had only a few. At 5 and 6 weeks old, the absolute numbers of round spermatids in SAM-P was about 34% and 41%, respectively, greater than in SAM-R, whereas the cell number in 40-week-old SAM-P was about 34% less than SAM-R. These results indicate that testicular maturation begins at an earlier age in SAM-P than SAM-R. Furthermore, at the age of 40 weeks signs of testicular deterioration are evident in SAM-P mice only     

Nb对Li／MgO甲烷氧化偶联催化剂的助催化作用

Ｌｉ／ＭｇＯ甲烷氧化偶联催化剂引入铌的氧化物可降低活性温度，７５０℃以下便达到最高Ｃ２烃产率。铌与锂、镁有多种结合方式，引入方法对活性测试结果有重要影响。铌不与镁紧密结合且分布于锂、镁之间时作用最好。     

Ni，Cu间的相互作用及其对CO加氢反应性能的影响

本文采用ＸＲＤ，ＴＰＲ，ＴＰＤ－ＭＳ，ＴＰＳＲ－ＭＳ和ＩＲ技术，研究了负载于ＳｉＯ＿２担体上的Ｎｉ，Ｃｕ间的相互作用以及所引起的ＣＯ加氢反应性能的变化。实验结果表明，双金属Ｎｉ和Ｃｕ之间可以很好地形成合金，Ｃｕ的４ｓ电子迁入Ｎｉ的３ｄ轨道的电子效应，使双金属催化剂对Ｈ＿２和ＣＯ的吸附能力有别于单金属Ｎｉ，Ｃｕ催化剂；ＣＯ加氢在Ｎｉ中心上按“表面碳”机理生成烃类，在Ｃｕ中心上通过ＨＣＯ＿（ａ）活性中间物生成醇类，Ｎｉ和Ｃｕ的合金化则有利于Ｃ＿２以上的物质生成。     

齐型空间上Littlewood－Paley算子在Lipschitz函数类上的有界性

证明了齐型空间上Ｌｉｔｔｌｅｗｏｏｄ－Ｐａｌｅｙ算子作为Ｌｉｐｓｃｈｉｔｚ函数类上的算子，当算子的像函数值在一点有限时，它们都是Ｌｉｐ（α）上的有界算子．