Default Risk Identification of P2P Borrower-Taking“RenRenDai”as Example

P2P网络借贷是一种新型的金融交易平台，它基于小微借款，将借款人和贷款人直接联系起来。相对于金融中介来说，经典的P2P网络借贷平台是一种信息中介。中国的P2P网络借贷的面临的风险中信用风险问题尤其突出。我国P2P网络借贷平台一般都会有自己的信用评价机制，即根据借款人的一些信息对借款人评定信用等级以供投资者决策参考。本文将通过构建模型研究我国P2P网络借贷平台的这种信用评价机制是否足够有效，以及我国的P2P投资者是否有足够能力识别出借款人的违约风险。 本文的主要学术贡献在于对影响P2P网贷平台的借款人信用风险的相关变量的深入探索以及对我国P2P网贷投资人风险识别能力的分析。虽然对我国P2P网络...P2P lending is a new type of financial trading platform, which linked the borrower and the lender directly based on micro-finance. Compared to financial intermediaries, classical P2P lending platform is more like an information intermediary.P2P lending in China is facing some risks, credit risk is particularly prominent in these risks. P2P lending platform in China generally have their own credit ...学位：管理学硕士院系专业：管理学院_技术经济及管理学号：1772014115106

厦门市某医院体检人群中有机氯农药暴露与胆石症发病的关联性研究

目的探讨厦门市第二医院体检人群中有机氯农药暴露与胆结石发生的关联及其发病危险因素。方法收集2015年2月-8月在医院健康体检人群中经B超确诊的新发胆囊结石患者100例,以同期参加体检的非胆囊结石者为对照,进行1∶2配比的病例对照研究。进行流行病学调查,采用气相色谱联用电子捕获器检测研究对象外周血中有机氯农药水平。应用多因素条件Logistic回归模型分析有机氯农药与胆囊结石发病的关系。结果病例组血清中α-HCH残留水平高于对照组,差异有统计学意义;Logistic回归分析非酒精性脂肪肝、2型糖尿病、血清α-HCH含量增高可能增加胆结石的患病危险,OR值及95%CI分别为5.134(1.952~13.502)、4.754(1.849~12.220)和1.357(1.094~1.854)。结论环境有机氯农药暴露可能是胆囊结石病发生的危险因素。厦门市科技计划项目(3502Z20163006)；厦门市集美区科技计划项目(20142C01)；厦门大学校长基金(20720152012)

“双循环”背景下中国东北与白俄罗斯经济发展互补性分析

Under the background of "double cycle", the complementary economic cooperation between Northeast China and Belarus is an inevitable choice for the two regions to restore economic and social development, expand opening up, and reshape international cooperation and new competitive advantages. Northeast China and Belarus should fully recognize their own strengths and weaknesses, learn from each other's strengths in infrastructure, factors, industries, trade, and innovation, play complementary advantages, and adhere to the principle of mutual benefit and win-win, adhere to the establishment of a modern market system and industrial modernization system , Achieve a high level of openness, and establish regional partnerships

Morphology Control and Vitamins Optimization of a Novel Arachidonic Acid-producing Strain Mortierella alpina LU166

以本课题组自主分离并鉴定的一株花生四烯酸(arachidonic acid, ARA)生产菌株,即高山被孢霉(Mortierella; alpina)LU166为研究对象,首先利用凹槽摇瓶培养,较为稳定地将菌体形态控制为刺突状小球,这一形态比絮状和大球状更有利于油脂和ARA的积累; .在此基础上优化了4种B族维生素($V{B_1}$、$V{B_{12}}$、生物素和泛酸钙)的添加量,并复合添加优化后的维生素浓度,最终获得的菌; 体生物量、油脂和ARA产量分别达到24.74,12.66和6.46 g/L,相比对照组分别提高了10%,30%和16%.An arachidonic acid (ARA)-producing strain Mortierella alpina LU166,; which is independently isolated by our lab, was studied in the present; work.Firstly,it's found that the mycelial morphology can be steadily; kept as fluffy small pellets when cultured in baffled flask,which is; more favorable for the accumulation of total lipids and ARA than that by; filaments and big pellets morphology. Then, the concentration of B-group; vitamins ($V{B_1}$,$V{B_{12}}$,biotin and calcium pantothenate) was; optimized to enhance the lipid production.When adding the combination of; vitamins with the optimized concentration into the culture,the; biomass,lipids and ARA yield reached 24.74,12.66 and 6.46; g/L,respectively,which increased by 10%,30% and 16%,compared to the; control group.厦门市科技计划项目; 厦门南方海洋研究中心项

A Novel Sc-promoted CuO-ZnO-Al_2O_3 Catalyst for Dehydrogenation of Cyclohexanol to Cyclohexanone

用SC2O3作为促进剂,研发出一种高效新型SC2O3促进的Cu-znO-Al2O3基催化剂(记为CuIznJAlk-XSCX),考察其对环己醇脱氢制环己酮的催化性能.实验结果显示,在组成经优化的Cu6zn3Al0.7SC0.3催化剂上,常压,523 k,n(C6H11OH)∶n(n2)=1∶19和空速(gHSV)=43 200Ml/(H·g)的反应条件下,环己醇脱氢的转化率达53.7%,产物环己酮的时空产率为5 344Mg/(H·g),这2个值均为不含SC2O3的基质催化剂Cu6zn3Al1的相应值(42.4%,4 222Mg/(H·g))的1.27倍.催化剂的表征结果显示,SC2O3的修饰调变作用可能是由于SC2O3在znO晶格中高的溶解度.少量SC2O3在znO晶格中的溶解在znO表面产生阳离子空位形式的SCHOTTky缺陷,通过这些表面阳离子空位接纳Cu+离子使Cuy0-Cu+原子簇得以稳定化.这有助于抑制催化活性Cuy0纳米颗粒的团聚烧结,保持Cu组分的高分散度,于是显著地提高催化剂的活性和操作稳定性.该催化剂具有应用前景.A type of Sc2O3-promoted Cu-ZnO-Al2O3 catalyst was developed.The catalyst displays excellent performance for dehydrogenation of cyclohexanol to cyclohexanone.Over a Cu6Zn3Al0.7Sc0.3catalyst under the reaction condition of atmospheric pressure,523 K,n(C6H11OH)∶n(N2)=1∶19and GHSV=43 200 mL/(h·g),the conversion of cyclohexanol dehydrogenation reached53.7%,with the STY of cyclohexanone being 5 344mg/(h·g);both values were 1.27 times of those obtained with the Cu-ZnOAl2O3 catalyst not containing Sc2O3,42.4% and 4 222 mg/(h·g).Characterization of the catalyst revealed that the pronounced modification action of Sc3+may be due to the high solubility of Sc2O3 in the ZnO lattice.Solution of a small amount of Sc2O3 in the ZnO lattice resulted in the formation of Schottky defects in the form of cationic vacancies at the surface of ZnO,where the Cuy0-Cu+clusters can be better stabilized through the Cu+accommodated at the surface vacant cation-sites.This would be conducive to inhibiting the aggregation and sintering of the catalytically active Cuy0nano-particles and preserving high dispersion degree of Cu composition,so that the activity and operating stability of the catalyst were markedly improved.国家重点基础研究发展计划(973)项目(2011CBA00508); 优秀国家重点实验室基金项目(20923004); 教育部创新团队项目(IRT1036

天然抗氧化剂对黄油氧化稳定性的影响Effects of natural antioxidants on oxidative stability of butter

为给黄油中复配天然抗氧化剂的开发提供思路，通过DPPH法测定DPPH自由基清除率和Rancimat法测定氧化诱导时间，研究单一和复配添加α-生育酚、γ-谷维素和植物甾醇3种天然抗氧化剂对黄油氧化稳定性的影响。结果表明：3种天然抗氧化剂均能提高黄油的氧化稳定性；不同复配组合对黄油氧化稳定性的影响有差异，其中α-生育酚和γ-谷维素（125 mg/kg和1 250 mg/kg）、α-生育酚和植物甾醇（125 mg/kg和1 250 mg/kg）、γ-谷维素和植物甾醇（均为800 mg/kg）3种复配组合对黄油氧化稳定性的提升较大，特别是α-生育酚和γ-谷维素（125 mg/kg和1 250 mg/kg）组合的氧化诱导时间可提升3.70 h，DPPH自由基清除率达80.4%，氧化稳定性能优于其他复配组合。综上，将复配天然抗氧化剂添加到黄油中可提高其氧化稳定性。 To provide ideas for the development of compounded natural antioxidants in butter, DPPH radical scavenging rate was evaluated by DPPH method and oxidation induction time was analyzed by Rancimat method. The effects of single or compound addition of three natural antioxidants, α-tocopherol, γ-oryzanol and phytosterol on oxidative stability of butter were investigated. The results showed that all three natural antioxidants could enhance oxidative stability of butter, and different combinations had different effects on oxidative stability of butter. With the three combinations of α-tocopherol and γ-oryzanol (125 mg/kg and 1 250 mg/kg), α-tocopherol and phytosterol (125 mg/kg and 1 250 mg/kg), and γ-oryzanol and phytosterol (both 800 mg/kg) showed greater improvement in the oxidative stability of butter. In particular, the oxidation induction time of group α-tocopherol and γ-oryzanol (125 mg/kg and 1 250 mg/kg) could be increased by 3.70 h, and the DPPH radical scavenging rate reached 80.4%, and the oxidative stability was better than other combinations. In conclusion, the addition of the compounded natural antioxidants to butter can improve its oxidative stability

中国脑血管病临床管理指南（第2版）（节选）——第3章 脑血管病高危人群管理 Chinese Stroke Association Guidelines for Clinical Management of Cerebrovascular Diseases (Second Edition) (Except) ——Chapter Three Management of Patients at Hige-risk of Cerebrovascular Diseases

针对脑血管病的危险因素积极进行早期干预管理是减少脑血管病危害最有效的方法。本章节介绍脑血管病高危人群管理的推荐意见，包括对不可干预和可干预血管危险因素的控制，阿司匹林在缺血性卒中一级预防中的应用以及首次卒中风险评估等方面。 Abstract: Early intervention to manage the risk factors of cerebrovascular disease is the most effective way to reduce the harm of cerebrovascular diseases. This chapter presents recommendations for the management of populations at high risk for cerebrovascular disease, including control of non-interventionable and interventionable vascular risk factors, the use of aspirin in the primary prevention of ischaemic stroke, and the risk assessment of first-time stroke