Nitro苜蓿和鹰嘴紫云英根瘤菌的分离与鉴定

采用划线和稀释分离相结合的方法对美国Ｎｉｔｒｏ苜蓿和鹰嘴紫云英根瘤的分离物进行纯化，并对分离的菌株进行了鉴定及理化测试，研究结果表明，这两种根瘤菌株生长速度快，结瘤率高，具有较强的耐盐性，其耐受浓度达到０．６ｍｏｌ／Ｌ和０．７ｍｏｌ／ＬＮａＣｌ，从鹰嘴紫云英的根瘤中分离的根瘤菌株在ＢＴＢ培养基中培养产酸，在石蕊牛奶培养基中培养产碱。     

In Between Us: On the Transparency and Opacity of Technological Mediation

In recent years several approaches??philosophical, sociological, psychological??have been developed to come to grips with our profoundly technologically mediated world. However, notwithstanding the vast merit of each, they illuminate only certain aspects of technological mediation. This paper is a preliminary attempt at a philosophical reflection on technological mediation as such??deploying the concepts of ??transparency?? and ??opacity?? as heuristic instruments. Hence, we locate a ??theory of transparency?? within several theoretical frameworks??respectively classic phenomenology, media theory, Actor Network Theory, postphenomenology, several ethnographical, psychological, and sociological perspectives, and finally, the ??Critical Theory of Technology.?? Subsequently, we render a general, systematic overview of these theories, thereby conjecturing what a broad analysis of technological mediation in and of itself might look like??finding, at last, an essential contradiction between transparency of ??use?? and transparency of social origins and effects.     

农电降损探讨

分析了农电损耗组成、讨论了降低农电损耗的主要措施,对实施降损的步骤和方法进行了说明     

开采多层裂缝性储层井的压力反映特征

运用数值模拟方法对开采多层双重介质储层井的压力反映特征的研究表明：开采多层储层的油气井的动态与开采其等效单层油气井的动态不相同，层间或层内非均质性会显著影响到油气井的动态；当层间有越流时，层间非均质性使得压力反映曲线可能是规则的，也可能是不规则的，这两种可能取决于越流强度、窜流系数以及储容比的相对大小。     

寒鸦繁殖习性的观察

本文报道了寒鸦的配对、巢区的选择，育雏等繁殖习性。     

合浦珍珠的宝石学特征及珍珠优化处理研究

研究了化学优化处理前后合浦珍珠的宝石学特征及影响珍珠质量的因素．提出了珍珠具多元构造的特征．珍珠久置变黄及优化后珍珠返黄是由于珍珠中有机物质和变价微量元素等受侵蚀氧化分解所致．     

Complex SNP-related sequence variation in segmental genome duplications

There is uncertainty about the true nature of predicted single-nucleotide polymorphisms (SNPs) in segmental duplications (duplicons) and whether these markers genuinely exist at increased density as indicated in public databases. We explored these issues by genotyping 157 predicted SNPs in duplicons and control regions in normal diploid genomes and fully homozygous complete hydatidiform moles. Our data identified many true SNPs in duplicon regions and few paralogous sequence variants. Twenty-eight percent of the polymorphic duplicon sequences we tested involved multisite variation, a new type of polymorphism representing the sum of the signals from many individual duplicon copies that vary in sequence content due to duplication, deletion or gene conversion. Multisite variations can masquerade as normal SNPs when genotyped. Given that duplicons comprise at least 5% of the genome and many are yet to be annotated in the genome draft, effective strategies to identify multisite variation must be established and deployed.     

茶叶多糖对小白鼠红细胞内 SOD 活性的影响

研究了茶叶多糖（ＴＰ）对小白鼠红细胞内ＳＯＤ活性的影响,结果表明了茶叶多糖对小白鼠红细胞内ＳＯＤ的活性有明显增强作用（ｐ＜０．００１）。     

吸附剂对三丁基氯化锡的吸附特性研究

比较了４种吸附剂对三丁基氯化钥的吸附特性及机理．通过对吸附剂的孔径和比表面积的研究结果，得出了Ｘ－５树脂是一种优良的吸附剂．研究了三丁基氯化锡的浓度以及环境温度对吸附的影响，得到了吸附等温线Ｑ＝１６８６．１６Ｃ￣（０．４７５５）．     

杉木炭疽病菌(Glomerella cingulata)潜伏侵染的研究

杉木针叶上炭疽病菌(Glomerella cingulata)的潜伏侵染研究结果表明:(1)杉木不同冠位、不同枝段和不同叶片部位的潜伏侵染率不同;(2)当年针叶5月中旬开始受侵,8月末达侵染高峰,当半个月平均气温低于10℃时不发生侵染,(3)针叶潜伏侵染率随杉木林地位级升高而增加,发病程度随地位级升高而降低,(4)病害症状于4～6月表现在先年枝梢的顶端,病害程度同针叶潜伏侵染率无关;(5)针叶中还原糖含量高似乎是影响病菌打破潜伏侵染的因素。