关于“经济发展方式转变进程中的财税政策”的探讨(笔谈)

转变经济发展方式是当前中国的热门话题,而上海在城市发展中又肩负着率先转变的重要任务,在这一意义和背景下,2010年4月24日由上海金融学院学院主办、上海金融学院公共经济管理学院承办的“《中国城市财政发展报告2009/2010:促进‘两个中心’建设的上海城市财政》首发式暨‘经济发展方式转变进程中的财税政策’论坛“在我校举行。与会专家围绕经济发展方式转变进程中的财税政策的“趋势与目标“、“机遇和挑战“、“实施方略“和“地方实践“等四个专题进行研讨,各抒己见,智慧交锋。现将其真知灼见整理摘要与读者分享,以期待更多学者共同关注当前经济发展方式转变进程中的财税政策

Screening of High Lipid-producing Fungus and Analysis of Composition of the Lipid

通信作者:[email protected][中文文摘]以早期从海洋环境中分离得到的38株海洋真菌为材料,采用苏丹黑染色法初筛,摇瓶法复筛,得到1株油脂产率相对较高(27.96%)的菌株MD2,经鉴定,该菌株为粘红酵母(Rhodotorula glutinis).再以MD2为出发菌株,经紫外诱变、亚硝基胍诱变和紫外-亚硝基胍复合诱变,最终得到突变菌株MD2-1;采用酸热法提取粘红酵母MD2-1的菌体油脂,测定了其产脂能力,并采用气相色谱-质谱联用法(GC-MS)测定其脂肪酸组成.结果表明:MD2-1的产脂能力较强,油脂质量达菌体干质量的45.32%,较MD2提高17.36%;MD2-1菌体油脂中检测出9种脂肪酸,其脂肪酸组成与植物油近似,其中10-十八(碳)烯酸占脂肪酸总量的71.53%,为10-十八(碳)烯酸工业化生产提供菌种资源,为其规模化生产奠定基础.[英文文摘]Thirty-eight marine fungi strains were isolated from marine environment and subjected to preliminary screening with Sudan Black dye and further screening by shake-flask culture.As a result,strain MD2 was found to have the highest lipid content of 27.96% and identified as Rhodotorula glutinis.The strain was mutagenized respectively with UV light,nitrosoguanidine(NTG) and their combination,obtaining the mutant MD2-1.The lipid was extracted from the strain Rhodotorula glutinis MD2-1 by acid-heat extracting methods,and its fatty acids was analyzed by GC-MS.The results showed that R.glutinis MD2-lexhbited strong ability to produce lipid,and the total amount of lipid represented an average of 45.32% of the dry strain weight..The fatty acid composition of the lipid from R.glutinis MD2-1 was similar to vegetable oil and fat,and the 10-octadecenoic acid accounted for 71.53% of the total fatty acids,so this research made a major significance:provided seed resources for industrial production of 10-octadecenoic acid and laid the foundation for its large-scale production.国家自然科学基金重点项目(40930847)、面上项目(31070442); 福建省自然科学基金项目(2012J01150

Study on the Indirect Determination of Chitosan by Square Wave Voltammetry

建立了以茜素红(AR)为电活性探针方波伏安法间接测定无电活性的壳聚糖(CS)的新方法。在0 1mol/LHAc＿NaAc(pH4 5)缓冲溶液中,AR与CS＿AR在GCE上均能形成一准可逆的吸附伏安峰(Vpc=-0 46V,Vpa=-0 41V)。实验表明,CS在低浓度(1 25×10-8～2 5×10-7mol/L)和高浓度(2 5×10-7～1 25×10-5mol/L)的条件下对体系的峰电流分别具有线性增敏和减敏效应。采用标准加入法测定了不同样品中壳聚糖的含量,其回收率在97 33%～102 00%之间,结果满意。广西壮族自治区自然科学基金资助项目(0141037;0342018

地面授时氢原子钟

本实用新型公开了一种地面授时氢原子钟，包括储存泡，所述储存泡大致呈椭球形结构，其中可以为中间段为圆柱面、两端为球面的胶囊形或雪茄形结构。采用该技术方案的地面授时氢原子钟通过将现有氢原子钟的球形储存泡结构调整为椭球型结构，使得其填充因子大大增加。有效的增加S参数，有利于信号的稳定度。?