444 research outputs found

    投资银行与地方政府财务顾问业务委托代理的分析

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    文章运用委托代理理论 ,对投资银行与地方政府财务顾问业务委托代理等问题进行了分析探讨

    新公共管理视角下我国纳税服务体系的构建

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    文章首先介绍了新公共管理及其对纳税服务观念的影响 ,以新公共管理的视角审视目前我国纳税服务的不足 ,提出构建体现新公共管理精神的人性化、高效、透明、完善的我国纳税服务体系

    A Study on Electrochemical Activity and ECL Properties of Some Bioactive Peptides

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    探讨了某些生物活性肽的电化学和电致化学发光特性的联系.The relativity of the peptides′ electrochemistry active and chemiluminescence intensity information are investigated.The electrochemiluminescence behavior of some bioactive peptides was studied by FIA-ECL.These peptides′ electrochemistry active at the glassy carbon electrode was also studied using a BAS-100 model electrochemical analyzer.国家自然科学基金!(296750003);福建省自然科学基金!(B9810006

    The Establishment of a FIA System with ECL Detection

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    讨论了一种流动注射电致化学发光检测系统的研制, 并用luMInOl 对其性能进行了测试.A novel ECL detection system for HPLC and FIA has been set-up.The performance of our detection system has been studied with luminol.国家自然科学基金!(296750003);福建省自然科学基金!(B9810006

    Determination of Glutathione by FIA with ECL Detection

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    发现氧化型谷胱甘肽能增强钌联吡啶的电致化学发光, 而还原型谷胱甘肽抑制钌联吡啶的电致化学发光. 根据增强或抑制程度的大小, 可定量测定谷胱甘肽.We reported the determination of glutathione based on electrogenerated chemiluminescence in the presence of ruthenium compound.The various parameter influencing the ECL-FIA of peptides as electroysis pulse parameters and medium conditions were optimized indetail.The sensitivity is sufficient.国家自然科学基金!(296750003);福建省自然科学基金!(B9810006

    The population dynamics and parameter of growth and mortality of Sillago sihama in the Minnan-Taiwan fishing grounds

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    以2001~2003年在闽南-台湾浅滩渔场底拖网渔获物采集的多鳞鱚样品,进行渔获群体结构和生长与死亡的研究,并从生态学参数的变化探讨种群动态。结果表明,多鳞鱚渔获群体叉长范围65~237mm,优势组131~150mm,平均134.5mm,体重范围5~110g,优势组11~30g,平均26.1g。年龄范围0~3龄,优势组1龄,平均0.91龄。生长参数L∞为260.89mm、W∞为153.81g、k为0.6614、t0为-0.6158、tr为0.8474龄。Z为2.7728,M为1.3004,F为1.4724,开发比率为0.5310。与1992~1993年比较,种群趋向个体小型化、低龄化,开发程度由未充分向过度开发变化。1994年以来该渔场不断加大捕捞的投入和产出,连续13年超过了估算的渔业资源最大可持续渔获量和最大可持续捕捞力量。大量捕杀幼鱼,致使包括多鳞鱚在内的多数底层、近底层鱼类过度开发。因此必须强化对渔业和渔业资源的管理力度,严格控制渔业的投入和产出量及开捕规格。在当前渔获量和捕捞力量超过最大可持续渔获量和最大可持续捕捞力量的情况下,应采取"负增长"的策略,渔业资源方能得以有效恢复,才能持久为人们所利用和实现海洋捕捞业的可持续发展。The population structure,characters of growth and mortality of Sillago sihama collected by bottom trawl in the southern Taiwan Strait during 2001~2003 were studied, and S.sihama population dynamics discussed using ecological parameters. The results showed that the fork length of S.sihama population ranged from 65 to 237mm, 131~150 mm being predominant,and the mean value was 134.5 mm. The body weight ranged from 5 to 110g, 11~30g being predominant,and the mean value was 26.1g. The age ranged from 0 to 3 years, 1 year being predominant,and the mean value was 0.91 year. The parameters of growth were as follows: L∞=260.89 mm, W∞=153.81g, k=0.6614, t0= -0.6158, tr=0.847 4; the coefficient of total mortality was 2.772 8, the coefficient of natural mortality was 1.300 4 and the coefficient of fishing mortality was 1.472 4, the exploitation rate was 0.531 0.Compared with data of 1992~1993,the population have been miniaturized in size,low-aged, and excessively exploited.The input-output of fishing in this fishing ground was enhanced continuously, the actual annual yield has exceeded their maximum sustainable yield and maximum sustainable fishing efforts for the last 13 years since 1994, and the juvenile fishes were captured heavily,resulted in over-exploitation of both benthic and near bottom fishes including S.sihama. Therefore, it is suggested that protection and management of the fish resources should be intensified, and effective measures should be taken to control the input-output of fishing and the capture size. In the current situation that fishing output and fishing efforts exceed the surplus output of fishery resources,the "negative increase" strategy must be taken to restore the fishery resources and then achieve sustainable development and sustainable use of fish stocks.福建省海洋与渔业局(闽海渔科2001-06);; 海洋生物多样性项目(2004)资

    全面深化改革导向的政府会计改革探索——第五届“政府会计改革理论与实务研讨会”综述

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    党的十八届三中全会通过的《中共中央关于全面深化改革若干重大问题的决定》(以下简称《决定》)中,多项决议都直接或间接地对中国的政府会计改革提出了需求,为开展政府会计改革理论研究和实践提供了很好的动力与导向。在此背景下,由中国会计学会政府及非营利组织会计专业委员会主办、厦门大学承办、厦门国家会计学院和厦门市财政局协办的第三届“公共管理、公共财政与政府会计跨学科论坛“暨第五届“政府会计改革理论与实务研讨会“于2014年5月10日至11日在厦门大学召开。与会者在政府会计准则制定、政府综合财务报告建设、政府会计改革的目标、路径、内容等若干方面达成了诸多共识

    Clinical Value of Immune Fecal Occult Blood Test in Detecting Gastrointestinal Bleeding from Digestive Disease

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    目的探讨免疫法粪便隐血试验在消化系统疾病患者出血评估的临床价值。方法回顾性分析厦门大学附属中山医院2009年1月—2010年6月住院的消化系统疾病患者免疫法粪便隐血检测结果,比较不同年龄、性别、疾病部位和疾病种类的阳性率差异。结果 1 500例消化系统疾病患者粪便隐血试验阳性率为35.3%(529/1 500),其中男性阳性率为37.6%(376/999),女性为30.5%(153/501),二者差异无统计学意义(χ2=7.37,P=0.07);大于70岁患者阳性率高于70岁以下,不同年龄组患者阳性率间差异有统计学意义(χ2=13.89,P=0.03);胃、结肠与直肠肿瘤患者粪便隐血试验阳性率分别为53.0%(70/132)、61.3%(38/62)和71.1%(32/45),与同组内其他非肿瘤疾病患者比较差异有统计学意义(P<0.05);消化道外的胰腺和肝胆疾病患者粪便隐血试验阳性率达到20%左右。结论免疫法粪便隐血试验对于胃、结肠、直肠等消化道肿瘤具有一定的辅助诊断价值;对于评估胰腺、肝胆等消化道外疾病的消化道出血情况也有一定的临床应用价值。Objective To evaluate the clinical value of fecal occult blood test in detecting gastrointestinal bleeding from digestive disease.Methods We retrospectively analyzed the fecal occult blood test results of the inpatients with digestive diseases in Xiamen University affiliated Zhongshan Hospital between January 2009 and June 2010.Positive rates were compared among the groups by age,gender,disease location and disease type.Results The positive rate of fecal occult blood test among the 1 500 inpatients with digestive diseases was 35.3%.No significant difference was observed between male(37.6%,376/999) and female patients(30.5%,153/501)(χ2=7.37,P=0.07).The positive rate was higher among those above 70 years old than those below(χ2=13.89,P=0.03).The positive rates among patients with gastric tumor,colon tumor and rectal tumor were 53.0%(70/132),61.3%(38/62),and 71.1%(32/45),respectively,which were all significantly higher than those of the benign diseases of the same location(P<0.05).The positive rate was about 20% for diseases outside the digestive tract,including the pancreatic and hepatobiliary diseases.Conclusion The fecal occult blood test has significant value in assisting diagnosis of gastrointestinal cancer,and can also be used for the evaluation of gastrointestinal bleeding in pancreatic and hepatobiliary diseases

    有机玻璃表面增强增透的研究

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    采用溶胶-凝胶体系制备光学塑料(有机玻璃:PMMA)表面增强的有机硅树脂涂层,制得Si-O-Si刚性交联网络涂层,具有良好的耐磨性及附着力,其表面平整、光滑,同时对PMMA基板的透光性具有明显的改善.并通过红外吸收光谱(FT-IR),紫外分光光度计(UV-vis)等手段,对涂层固化过程及各项性能进行表征

    PET碳酸饮料瓶结晶与流变性能研究

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    通过偏光透射法研究PET碳酸饮料瓶结晶分布情况,稳态与动态流变法研究PET树脂的流变性能,探讨PET瓶应力开裂的原因.结果表明:瓶身结晶分布不均匀,树脂分子量分布窄、有极高分子量存在、粘性太大易造成应力集中或应力残留,使PET碳酸饮料瓶耐应力开裂能力变差
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