The Project Development Risk Management of Real Estate Enterprises

房地产投资是进行房地产开发和经营的基础，在这个投资活动过程中，收益与风险往往是同时存在的。风险是一种特殊事件，这种事件会带来多个不确定的结果，风险一旦发生，就可能使开发商蒙受巨大损失，甚至导致破产。因此，针对房地产企业在项目开发中的风险因素及管控方法的研究是学术界及业界值得关注的重要问题。 论文系统地研究了项目开发各个阶段可能出现的风险，运用有关数学模型，从定性分析到定量计算，对风险因素进行评价，用以指导房地产开发实践。具体反映在第三章中分析识别了房地产项目开发过程中存在的风险因素，然后在对比分析各类风险评价方法的基础上，构建了基于模糊综合评价的风险决策模型；在第四章中，针对模型评价的结果，...Real estate investment is a base of development of real estate and management. In such investment process, income and risk usually exist at the same time. The risk is a kind of special incident, such incident will bring a great deal of uncertain results, once the risk takes place, may make the developer suffer enormous losses, even it is bankrupt to cause. So, study on risk factors appeared in the...学位：工程硕士院系专业：管理学院管理科学系_项目管理学号：X20043705

逆转素对人肝癌细胞HepG2增殖、克隆形成及凋亡的影响

目的探讨逆转素（reversine）对人肝癌细胞HepG2细胞增殖、克隆形成和凋亡的影响。方法人肝癌细胞HepG2经不同浓度reversine(0.1～1.6μmol·L-1)处理后,应用MTS法检测其对细胞增殖能力的影响;克隆形成实验评估reversine作用于肝癌细胞HepG2的远期效应;流式细胞术Annexin V-FITC/PI双染法检测reversine处理后肝癌细胞HepG2的凋亡率;Western blot法检测凋亡相关蛋白PARP、Bax、Bcl-2及Bcl-xL表达水平的变化。结果与对照组（DMSO）相比,不同浓度reversine对人肝癌细胞HepG2的增殖均有抑制作用（P<0.05）,且呈剂量依赖关系,IC50为0.94μmol·L-1。Reversine可以明显抑制Hep G2细胞的克隆形成能力（P <0. 05）,且较高浓度reversine处理后,Hep G2细胞几乎不能形成肉眼可见的细胞克隆; reversine可以诱导Hep G2细胞凋亡（P <0. 05）,且细胞的凋亡率与reversine的浓度呈正相关; Western blot结果显示,reversine孵育48 h后,Hep G2细胞中活化PARP、Bax的表达明显上调;同时,Bcl-2及Bcl-xL蛋白的表达下降。结论 Reversine可以明显抑制人肝癌细胞Hep G2细胞的增殖和克隆形成能力,并且可诱导Hep G2细胞的凋亡,其诱导凋亡与线粒体凋亡途径相关。福州总医院创新团队项目(No 2014cxtd05

开启中国设计育种新篇章——“分子模块设计育种创新体系”战略性先导科技专项进展

"分子模块设计育种创新体系"战略性先导科技专项以水稻为主,小麦、鲤等为辅,利用野生种、农家品种和主栽(养)优良品种等种质资源,综合运用基因组学、系统生物学、合成生物学等手段,解析高产、稳产、优质、高效等重要农艺(经济)性状的分子模块,揭示水稻复杂性状全基因组编码规律,发展多模块非线性耦合理论和"全基因组导航"分子模块设计育种技术,优化多模块组装的品种设计的最佳策略,建立从"分子模块"到"设计型品种"的现代生物技术育种创新体系,为实现全基因组水平多模块优化组装、培育新一代超级品种提供系统解决方案。文章介绍了该专项的背景、总体目标、研究内容、进展及发展展望

开启中国设计育种新篇章——“分子模块设计育种创新体系”战略性先导科技专项进展

“分子模块设计育种创新体系”战略性先导科技专项以水稻为主,小麦、鲤等为辅,利用野生种、农家品种和主栽(养)优良品种等种质资源,综合运用基因组学、系统生物学、合成生物学等手段,解析高产、稳产、优质、高效等重要农艺(经济)性状的分子模块,揭示水稻复杂性状全基因组编码规律,发展多模块非线性耦合理论和“全基因组导航”分子模块设计育种技术,优化多模块组装的品种设计的最佳策略,建立从“分子模块”到“设计型品种”的现代生物技术育种创新体系,为实现全基因组水平多模块优化组装、培育新一代超级品种提供系统解决方案。文章介绍了该专项的背景、总体目标、研究内容、进展及发展展望

Electrochemical Behavior and Determination of Luteolin at a Glassy Carbon Electrode

应用循环伏安法研究木犀草素于玻碳电极的电化学行为.在磷酸盐缓冲液中(pH 4.0),-0.2~+0.8V电位区间内,木犀草素于玻碳电极表面发生的电极反应是吸附控制的准可逆2电子转移过程,电子转移系数α=0.66;建立了检测木犀草素含量的差示脉冲伏安法(DPV).在富集电位+0.4 V下,经富集240 s后,测得木犀草素氧化峰电流Ip与其浓度在1.0×10-8~1.0×10-6mol.L-1范围内呈良好的线性关系,最低检出限为5.0×10-9mol.L-1.本法操作简单、快速、灵敏、准确,可为木犀草素药物质量的控制和检测提供一种简便的新方法.The electrochemical behavior of luteolin was studied by voltammetry at a glassy carbon electrode in phosphate buffer solution.The results exhibited that the well-defined redox peak of luteolin is observed and the electrode process is adsorption-controlled.The charge transfer coefficient(α) was calculated as 0.66 in phosphate buffer solution(pH 4.0).The relationships between oxidation peak current and the concentration of luteolin are linear in the range of 1.0×10-8 ～ 5.0×10-6 mol·L-1 by differential pulse voltammetric method.The detection limit had been estimated as 1.0×10-8 molL-1.This method can be used for the determination of luteolin with satisfactory results.作者联系地址：福建医科大学药学院药物分析系,福建医科大学药学院药物分析系,福建医科大学药学院药物分析系,福建医科大学药学院药物分析系,福建医科大学药学院药物分析系,福建医科大学药学院药物分析系,福建医科大学药学院药物分析系 福建福州350004,福建福州350004,福建福州350004,福建福州350004,福建福州350004,福建福州350004,福建福州350004Author's Address: Department of Pharmaceutical Analysis of the Fujian Meidical University,Fuzhou 350004,Chin

Cytosporone B is an agonist for nuclear orphan receptor Nur77

Nuclear orphan receptor Nur77 has important roles in many biological processes. However, a physiological ligand for Nur77 has not been identified. Here, we report that the octaketide cytosporone B (Csn-B) is a naturally occurring agonist for Nur77. Csn-B specifically binds to the ligand-binding domain of Nur77 and stimulates Nur77-dependent transactivational activity towards target genes including Nr4a1 (Nur77) itself, which contains multiple consensus response elements allowing positive autoregulation in a Csn-B-dependent manner. Csn-B also elevates blood glucose levels in fasting C57 mice, an effect that is accompanied by induction of multiple genes involved in gluconeogenesis. These biological effects were not observed in Nur77-null (Nr4a1(-/-)) mice, which indicates that Csn-B regulates gluconeogenesis through Nur77. Moreover, Csn-B induced apoptosis and retarded xenograft tumor growth by inducing Nur77 expression, translocating Nur77 to mitochondria to cause cytochrome c release. Thus, Csn-B may represent a promising therapeutic drug for cancers and hypoglycemia, and it may also be useful as a reagent to increase understanding of Nur77 biological function.National Natural Science Fund of China [30630070, 30425014, 30325044]; Ministry of Science and Technology [2006CB503905, 2004CB518800, 2007CB914402]; Ministry of Education [706036, 306010, 705030

Amplitude analysis of the decays D0 → π+π−π+π− and D0 → π+π−π0π0*

Using e+e− annihilation data corresponding to an integrated luminosity of 2.93 fb−1 taken at the center-of-mass energy √s = 3.773 GeV with the BESIII detector, a joint amplitude analysis is performed on the decays D0 → π+π−π+π− and D0 → π+π−π0π0 (non-η). The fit fractions of individual components are obtained, and large interferences among the dominant components of the decays D0 → a1(1260)π, D0 → π(1300)π, D0 → ρ(770)ρ(770), and D0 → 2(ππ)S are observed in both channels. With the obtained amplitude model, the CP-even fractions of D0 → π+π−π+π− and D0 → π+π−π0π0 (non-η) are determined to be (75.2 ± 1.1stat. ± 1.5syst.) % and (68.9 ± 1.5stat. ± 2.4syst.)%, respectively. The branching fractions of D0 → π+π−π+π− and D0 → π+π−π0π0 (non-η) are measured to be (0.688 ± 0.010stat. ± 0.010syst.)% and (0.951 ± 0.025stat. ± 0.021syst.)%, respectively. The amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of D0 → 4π when used to determine the CKM angle γ(φ3) via the B− → DK− decay

Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024

We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^