西部地区农业信贷投入的经济效应研究

利用面板模型对西部地区1978—2009年农业信贷投入的经济效应进行实证分析,结果表明:农业信贷投入促进农业产出增长的作用比较明显,而在提高农村居民收入增长方面则显得比较乏力;农业信贷资金的产出弹性逐渐得到改善,农业产出对信贷投入的响应更趋积极;农业产出和农村居民收入对农业信贷利率的变化不敏感,农村金融市场上信贷配给的现象依然普遍;农业信贷投入的经济效应存在省际差异。因此,应完善农业信贷的征信机制,增加农业信贷资金的有效供给并调整投入结构,调整西部地区农业生产结构,改善农民收入结构,以增强农业信贷投入的经济效应。     

企业异质性与贸易中介理论研究新进展

新新贸易理论诞生近十年来,贸易理论家围绕企业异质性假定进行了细致而富有成效的拓展研究。其中引人注目的是融入贸易中介的分析,打破了已有研究关于直接出口的局限,并分别基于异质性和企业内生边界视角,解释了中介技术和不完全合约对企业直接出口和中介出口等不同出口决策及福利分配的影响。本文梳理了国外最新文献中企业异质性与贸易中介理论的研究进展,解析了将贸易中介引入新新贸易理论的微观机理,并展望了其未来的发展方向。     

FDI对行业环境绩效的影响及门槛效应研究——对2004--2010年江苏省制造业29个行业的实证分析

采用2004--2010年江苏省制造业29个行业面板数据,分析FDI与制造业环境绩效的关系,并从工资水平门槛和环境规制门槛两个角度检验了FDI对环境绩效影响的门槛效应。分析结果表明：FDI与清洁生产型行业的环境绩效正相关,而与污染密集型行业的环境绩效负相关;清洁生产型行业的环境绩效与FDI的环境规制和工资水平均呈现倒“N”型曲线关系,污染密集型行业的环境绩效与FDI的环境规制和工资水平分别呈现倒“u”和正“u”型曲线关系;绝大部分行业没有同时处在工资水平门槛和环境规制门槛的最优区间,总体上存在工资水平较低、环境规制强度较弱的情况。FDI对制造业行业环境绩效存在显著的门槛效应,地方政府应有选择地吸纳能够兼顾经济效益和环境效益的外资投入,在制定相关政策时,切忌盲目地、一刀切地提高或者降低环境规制强度和行业工资水平,可依据门槛最优区间对不同行业的环境规制和工资水平加以相应调整。     

Hypoglycemic, hypolipidemic and antioxidant properties of combination ofCurcumin fromCurcuma longa, Linn, and partially purified product fromAbroma augusta, Linn. in streptozotocin induced diabetes

Dietary spice components ofCurcuma longa andAbroma augusta have been screened for their protective effect against reactive oxygen species induced lipid peroxidation. They have been found to be efficient antioxidant when administered in combination. The purpose of the study was to investigate the effect of oral administration (300mg/Kg) of the aqueous extract of turmeric whose active ingredient isCurcumin andAbromine powder as a hypoglycemic agent mixed with diet. The effect of this aqueous extract on blood glucose, lipid peroxidation (LPO) and the antioxidant defense system in rat tissues like liver, lung, kidney and brain was studied for 8 weeks in streptozotocin induced diabetic rats. The administration of an aqueous extract of turmeric and abromine powder resulted in a significant reduction in blood glucose and an increase in total haemoglobin. The aqueous extract also resulted in decreased free radical formation in the tissues studied. The decrease in thiobarbituric acid reactive substances (TBARS) and increase in reduced glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT) clearly showed the antioxidant property of the mixture. It is suggested that these changes initially counteract the oxidative stress in diabetes however, a gradual decrease in the antioxidative process may be one of the factors which results in chronic diabetes. These results indicate that the mixture of the two plants have shown antidiabetic activity and also reduced oxidative stress in diabetes. A combination ofAbroma augusta and Curcuma longa also restored the other general parameters in diabetic animals. The results were statistically analyzed and indicated that combination of herbal extracts showed better efficacy as compared to individual herbal plant extracts used.     

汉英广告语对比分析

广告有着自身的语言特点和用法。文章从语言组织结构、修辞手法、语用效果等方面对汉英广告语言进行了对比分析,旨在探讨汉英广告语言的异同之处、归纳广告语言的语用规则。     

下坡跑运动对骨骼肌α7β1整合素及FAK表达的影响

通过观察下坡跑运动后α7β1整合素及FAK的表达和FAK活性的变化,探讨α7β1整合素在运动重复效应中作用机制。将32只小鼠随机分为安静对照组,运动后3 h组、24 h组、8 d组。小鼠进行一次性下坡跑运动,速度为17 m/min,坡度为-20°,时间为30 min。各组于各时刻点摘眼球取血及取双侧腓肠肌。比色法检测血清CK活性,Real-time PCR检测α7β1整合素及FAK的m RNA表达,Western blot检测α7β1整合素及p FAK397的蛋白表达。结果显示一次下坡跑运动后CK活性升高显著,且在24 h增幅增大。α7 integrin m RNA在一次运动后3 h显著增加,但在24 h变化不明显,但8 d时仍增加显著,其蛋白水平在运动后3 h显著增加,虽在24 h和8 d时升高程度逐渐降低但仍呈显著。β1 integrin m RNA在一次运动后3 h显著增加,24 h及8 d变化不明显,蛋白水平在一次运动后3 h呈显著升高,24 h升高程度增加,在8 d时回复。FAK m RNA在一次运动后3 h显著增加,24 h及8 d变化不明显,p FAK397水平在一次运动后呈现显著升高,24 h升高程度降低,8 d时基本回复。结果表明α7β1整合素-FAK信号通路介导了运动重复效应。     

“阳光体育运动”在宁高校贯彻现状探析

教体艺[2006]6号《教育部国家体育总局共青团中央关于开展全国亿万学生阳光体育运动的决定》已推出三年了,各学校的贯彻落实情况究竟如何？运用文献资料法、问卷调查法、专家访谈法和数理统计法,对南京部分高校进行了调研,发现阳光体育运动贯彻落实并没有得到保障,更没有达到预期的目标。     

Braided composite materials for the production of lightweight, high rigidity golf shafts

Braiding is not currently used in the production of golf shafts. The objective of this work was to develop, through a modelling process consisting of altering lamina sequence, a golf shaft, using braided laminas, which would have mass, stiffness and torque comparable to commercially available composite and steel shafts. A 2D conical braided composite model was previously developed and validated to predict elastic constants of braided closed meshed structures. Energy methods were used to calculate the stiffness and torque of shafts using prescribed industry approaches. Shaft mass was calculated based on geometry and density of constitutent materials. Modelled shafts had both braided and unidirectional layers and compared favourably with or were better than commercially available composite and steel shafts in terms of deflection force and twist angle; they had the same weight as composite shafts but were much lighter than steel shafts. If these findings are verified, braided composites would be a viable and effective approach to the design of future golf shafts.