关于改进国有企业审计的内容和方法

本文就国有企业改革形势下,如何改进国企审计的内客和方法,提出了一些建议。     

The Ecological Value and Feasibility of Composting Technology for Garden Soil Improvement

Soil quality of garden plants is an important factor for good growth of garden plants.Based on the analysis of the current situation of garden soil,the ecological value and feasibility of composting technology applied in garden soil improvement were discussed.This study provided a basis for strengthening the quality management of garden soil,improving the standard of garden soil improvement,and helping the healthy and sustainable development of modern garden greening.     

The effects of onion and salt treatments on essential oil content and composition of Rosa damascena Mill

Due to the low oil content of Rosa damascena Mill., on one hand, and the wide spectrum of its application, on the other hand, it is desirable to find ways to increase the oil yield and also its quality. Therefore, in the present study the effects of chopped onion (1.0, 1.5, 2.0 and 4.0 g per 220 g of rose flower) and sodium chloride (11.0, 15.5, 22.0 and 30.0 g per 220 g of rose flower) which were added to rose flowers before distillation, were investigated on the quality and quantity of the oil. The quantity was measured as the ratio of oil to rose flower (w/w, %) and the quality was evaluated using the oil composition especially the content of monoterpene alcohols and hydrocarbons. Compared with corresponding control sample, treating with 1.5 g of chopped onion increased the oil content by 41% but it resulted in a lower quality; whereas in the presence of 1.0 g of onion, an increase of 30% and a decrease of 18% were observed in the percentage of monoterpene alcohols and hydrocarbons, respectively without any considerable change in the oil content. However, the effect of sodium chloride was somehow different from that of onion; such that in the optimal amount (22.0 g), the salt had no considerable effect on the quality but an increase of 21% in the oil yield.     

竹子DNA提取方法改良及ITS-RFLP分析的初步研究

通过对传统方法的比较、改进,形成一种快速、简易的适用于竹子DNA提取的方法。另外,通过PCR扩增和7种限制性内切酶(AluⅠ、BbeⅠ、BbvⅠ、DpnⅠ、EagⅠ、hindⅢ和RsaⅠ)酶切,对云南世博园内的灰香竹、秀叶箭竹、云南箭竹和滑竹等4个竹种rDNA-ITS进行分析,发现竹子种间甚至是属间的rDNA-ITS序列的RFLP图谱差异很小,不适宜用来作竹子种属鉴定的标准。     

An evaluation of genetic diversity indices of the Red Bororo and White Fulani cattle breeds with different molecular markers and their implications for current and future improvement options

The genetic diversity of the Red Bororo and White Fulani cattle breeds of Cameroon and Nigeria was assessed with a panel of 32 markers. Estimates for the various indices of genetic diversity, total number of alleles (TNA), mean observed number of alleles (MNA), mean effective number of alleles (MNE), observed heterozygosity (H _ob) and expected heterozygosity (H _ex), were higher at microsatellite loci than at protein loci. Mean H _ex values were above 71% at microsatellite loci in all the breeds and ranged from 37% to 41.6% at milk protein loci and from 40.9% to 45.6% at blood protein loci. The highest TNA and MNA of microsatellites were recorded for the Nigerian White Fulani. MNE of milk protein loci was highest in the Cameroonian Red Bororo, while TNA of blood protein loci was highest in the Cameroonian White Fulani. The high genetic diversity levels indicate the presence of the necessary ingredients for improvement breeding and conservation. Multi-locus estimates of within-population inbreeding (f), total inbreeding (F) and population differentiation (θ) of the breeds were significantly different from zero, except for θ of blood proteins. A high level of gene flow was found between the breeds (5.829). The phylogenetic relationship existing among the four breeds is greatly influenced by location. The high gene flow between the breeds may lead to a loss of genetic diversity through genetic uniformity and a reduction in opportunities for future breed development. We propose an improvement scheme with aims to prevent loss of genetic diversity, improve productivity and reduce uncontrolled genetic exchanges between breeds.     

甘油和戊二醛对丝素膜性能的改良效果

为改善丝素膜的使用性能,在丝素溶液中添加甘油和戊二醛后制膜,探讨利用甘油的吸湿性能和戊二醛的交联作用对丝素膜性能的改良效果。结果表明:添加甘油的丝素膜持水性增强、耐水性能和相对伸长大幅度提高;戊二醛可以弥补添加甘油引起的丝素膜拉伸强度的下降。甘油和戊二醛的添加的质量分数分别为0.5%和0.2%时所制成的丝素膜质地湿润、光滑、柔软而富有弹性,其综合性能指标优于表面经80%甲醇处理的丝素膜。     

西门塔尔牛改良当地黄牛效果试验

[目的]为了加快当地黄牛改良步伐,进一步提高黄牛生产性能.[方法]通过对西本杂交一代牛与本地黄牛育肥试验对比,[结果]显示,西杂牛各生长阶段生产性能均高于本地黄牛,育肥效果良好.[结论]试验对加快肉牛产业的发展步伐具有重要的参考价值.     

湟源县黄牛改良效果的调查

为了解湟源县牛品种改良效果,掌握良种奶牛的饲养量,从2004年我们根据各牛改点的配种记录,深入农户,对牛受胎、产犊情况进行了调查,结果表明:良种母畜比例提高了35%,良种畜存栏达到22 389头.     

分子标记辅助选择技术在水稻稻瘟病抗性改良中的应用

利用分子标记辅助选择是现代植物育种的手段之一。本文介绍了水稻稻瘟病及其抗性机理、分子标记辅助选择在水稻稻瘟病抗性改良育种中的优越性和近年来取得的进展。     

我国《城乡规划法》的不足及完善对策——基于我国城市建筑“短命”现象的反思

基于当前我国城市建筑"短命"现象与城市规划存在的随意性与权力滥用等问题以及城市规划存在的问题与我国《城乡规划法》的功能性缺失和制度性缺陷之间关系的研究,提出我国《城乡规划法》应注重控制城乡规划主管部门行政权的行使并严格城市规划的修改制度、明确城市规划应考虑产权保护、限制规划管理部门的自由裁量权等对策与建议,从而遏制城市建筑"短命"现象、规范城市规划行为,为完善我国《城乡规划法》提供参考。