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工程建设领域串通投标犯罪案件的侦查难点及对策

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江苏警官学院学报 2024年第3期39卷 72-80页

作者：李正平宋利红中国人民公安大学侦查学院

招投标制度是提高资源配置效率、完善市场体系建设的重要保障。近年来,串通投标犯罪在工程建设领域频发,案件数量迅速增长,犯罪嫌疑人大肆利用工程资质、评分项目、投标价格串通投标。此类案件地区分布广泛,涉案项目利润高,且与商业贿... 详细信息

招投标制度是提高资源配置效率、完善市场体系建设的重要保障。近年来,串通投标犯罪在工程建设领域频发,案件数量迅速增长,犯罪嫌疑人大肆利用工程资质、评分项目、投标价格串通投标。此类案件地区分布广泛,涉案项目利润高,且与商业贿赂犯罪及黑社会性质的有组织犯罪相交织,产业化特征明显。当前,在串通投标犯罪案件侦查中,存在犯罪线索获取难、招投标数据展开分析难、大量再生证据干扰侦查视线、串通的主观故意证明难等困境。对此,公安机关应运用犯罪研判模型扩大案件线索,以投标文件和资金作为侦查突破口,通过“四流分析”固定串通投标犯罪事实,充分利用再生证据及原生证据打开讯问突破口,从而实现对此类犯罪的精准打击。

关键词：工程建设串通投标侦查对策

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跨境电商独立站评价指标体系标准研究

中国标准化 2024年第15期 115-118页

作者：宋丽红丁凯浙江省标准化研究院(浙江省标准化智库)

跨境电商独立站已成为跨境电商的重要渠道,带动跨境电商品牌出海促进跨境电商产业高质量发展。通过跨境电商独立站评价能够全面衡量跨境电商独立站发展水平,推动跨境电商独立站高质量发展。然而,跨境电商独立站评价缺乏统一的规范,急需... 详细信息

跨境电商独立站已成为跨境电商的重要渠道,带动跨境电商品牌出海促进跨境电商产业高质量发展。通过跨境电商独立站评价能够全面衡量跨境电商独立站发展水平,推动跨境电商独立站高质量发展。然而,跨境电商独立站评价缺乏统一的规范,急需标准进行支撑。本文对跨境电商独立站评价指标体系标准开展研究,通过梳理跨境电商独立站标准化现状,提出跨境电商独立站评价指标体系标准的核心技术内容,为跨境电商独立站建设及发展评价提供参考。

关键词：跨境电商独立站评价指标体系评价标准

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New Exact Solutions for Konopelchenko-Dubrovsky Equation Using an Extended Riccati Equation Rational Expansion Method

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Communications in Theoretical Physics 2006年第5期45卷 I0003-I0003,770-776页

作者： song li-Na ZHANG hong-Qing Department of Applied Mathematics Dalian University of Technology Dalian 116024 China

Taking the Konopelchenko-Dubrovsky system as a simple example, some familles of rational formal hyperbolic function solutions, rational formal triangular periodic solutions, and rational solutions are constructed by using the extended Riccati equation rational expansion method presented by us. The method can also be applied to solve more nonlinear partial differential equation or equations.

关键词： Konopelchenko-Dubrovsky equation extended Riccati equation rational expansion method nonlinear partial differential equation or equations

Extended sine-Gordon Equation Method and Its Application to Maccari＇s System

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Communications in Theoretical Physics 2005年第5X期44卷 783-788页

作者： song li-Na ZHANG hong-Qing Department of Applied Mathematics Dalian University of Technology Dalian 116024 China

An extended sine-Gordon equation method is proposed to construct exact travelling wave solutions to Maccari's equation based upon a generalized sine-Gordon equation. It is shown that more new travelling wave solutions can be found by this new method, which include bell-shaped soliton solutions, kink-shaped soliton solutions, periodic wave solution, and new travelling waves.

关键词： Maccari's system exact travelling wave solution extended sine-Gordon equation method

Extended Jacobi Elliptic Function Rational Expansion Method and Its Application to （2＋1）-Dimensional Stochastic Dispersive Long Wave System

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Communications in Theoretical Physics 2007年第6期47卷 969-974页

作者： song li-Na ZHANG hong-Qing Department of Applied Mathematics Dalian University of Technology Dalian 116024 China

In this work, by means of a generalized method and symbolic computation, we extend the Jacobi elliptic function rational expansion method to uniformly construct a series of stochastic wave solutions for stochastic evolution equations. To illustrate the effectiveness of our method, we take the （2＋ 1）-dimensional stochastic dispersive long wave system as an example. We not only have obtained some known solutions, but also have constructed some new rational formal stochastic Jacobi elliptic function solutions.

关键词： stochastic evolution equations (2+ 1)-dimensional stochastic dispersive long wave system rational formal stochastic Jacobi elliptic function solutions

Brassinosteroids Regulate the Differential Growth of Arabidopsis Hypocotyls through Auxin Signaling Components IAA19 and ARF7

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Molecular Plant 2013年第3期6卷 887-904页

作者： Xiao-Yi Zhou li song hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 300 Fenglin Road 200032 Shanghai China

Brassinosteroids （BRs） are an important class of phytohormones which regulates a wide range of physiological processes. Genetic and physiological studies have revealed that BR responses usually depend on an intact auxin signaling pathway. Here, we demonstrate that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hypocotyls and result in the morphological changes, while auxin-resistant mutants, msg2 （dominant mutant of IAA19） and arf7, are insensitive to the BR effect and can partially suppress the phenotype of bzrl-D （dominant mutant of BZR1 with enhanced BR signaling）. Interestingly, BZR1 protein can directly bind to the promoter regions of both IAA19 and ARFT, indicating that IAA19 and ARF7 mediate the BR-induced differential growth by serving as direct targets of BZR1. Systemic microarray analysis revealed that a number of BR-responsive genes showed reduced BR response in msg2, confirming that BR employs auxin signaling components IAA19 and ARF7 to modulate the specific downstream processes. These results provide informative clues on the crosstalk of BR-auxin signaling and the mechanisms of BR-auxin effects in regulating differential growth.

关键词： brassinosteroids (BRs) auxin IAA19 ARF7 differential growth Arabidopsis.

Arabidopsis MSBP1 Is Activated by HY5 and HYH and Is Involved in Photomorphogenesis and Brassinosteroid Sensitivity Regulation

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Molecular Plant 2011年第6期4卷 1092-1104页

作者： Qiu-Ming Shi Xi Yang li song hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 300 Fenglin Road 200032 Shanghai PR China

Membrane Steroid Binding Protein 1 （MSBP1） can bind steroids in vitro and negatively regulates brassinosteroid （BR） signaling, as well as cell elongation and expansion. Detailed analysis of the MSBP1 expression pattern based on quantitative real-time RT-PCR and promoter-GUS fusion studies revealed that MSBP1 expression in hypocotyls is stimulated by various light conditions, Interestingly, MSBP1 expression is greatly suppressed in hyS, hyh, or hy5hyh mutants but enhanced in cop1 mutants, Further analysis employing a yeast one-hybrid assay, an electrophoretic mobility shift assay （EMSA）, and a Chromatin IP （CHIP） assay confirmed the direct binding of Long Hypocotyl 5 （HY5） and HY5 Homolog （HYH） to the promoter region of MSBP1, indicating that MSBP1 is involved in light-regulated hypocotyl growth by serving as a direct target for HY5 and HYH. In addition, hy5 and hy5 hyh mutants show altered BR responses to light, which is consistent with the suppressed expression of MSBP1 in these mutants. These results suggest that light triggers MSBP1 ex- pression through direct binding to and activation by HY5 and HYH, thereby inhibiting hypocotyl elongation. The findings also provide informative clues regarding the mechanisms for the negative regulation of BR sensitivity and photomorpho- genesis during the dark-light transition.

关键词： MSBP1 HY5 HYH photomorphogenesis BR signaling.

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医院工作人员呼吸道防护能力的评价研究

中国感染控制杂志 2024年第1期23卷 25-31页

作者：贾会学姚希胡美华张冰丽孙昕霙李子涵邓明卓卢联合李杰宋丽红路简羽宋雪梅高航李六亿北京大学第一医院感染管理-疾病预防控制处北京100034 北京大学公共卫生学院社会医学与健康教育系北京100191 首都医科大学附属北京友谊医院北京100050 北京地坛医院感染管理科北京100015 首都医科大学附属复兴医院医院感染与疾病预防控制处北京100038 北京市密云区医院感控科北京101599 北京市第二医院院感科北京100031

目的了解医院工作人员呼吸道防护能力。方法选取北京市6所不同级别、性质的医院不同风险级别的工作人员,包括医生、护士、医技、工勤人员进行呼吸道防护能力知识测评。根据呼吸道传染病暴露风险,以实际案例及日常工作场景出发,从呼吸道... 详细信息

目的了解医院工作人员呼吸道防护能力。方法选取北京市6所不同级别、性质的医院不同风险级别的工作人员,包括医生、护士、医技、工勤人员进行呼吸道防护能力知识测评。根据呼吸道传染病暴露风险,以实际案例及日常工作场景出发,从呼吸道传染病的识别、呼吸道传染病的传播途径与相应防护要求和口罩的正确选择与使用三个方面设计呼吸道防护能力测评内容,分别包括6、6、8个知识点,共20个知识点,均为选择题。多选题全选对为满分,部分选正确且无错误选项为部分得分,有错误选项不得分。根据经典测评理论对每个知识点题目进行难度、区分度分析。结果对6所医院326名不同风险级别的工作人员呼吸道防护能力知识测评结果显示,20个知识点中,得满分比率在60%以上的有6个,其他题目得满分比例较低,其中空气传播疾病种类、飞沫传播疾病种类、呼吸道传染病医院感染防控常规措施、医用防护口罩的佩戴指征和医用外科口罩的佩戴指征5个知识点得满分比率在10%以下。在20道知识题中,难度分析较为容易、难度中等和较难的题目分别有5、1、14道;区分度在≥0.4、0.30~0.39、0.20~0.29、≤0.19的题目分别为6、1、4、9道。结论医院工作人员呼吸道防护能力还有很大提升空间,尤其在不同传播途径疾病种类的认知和不同类型口罩佩戴指征的掌握方面。

关键词：工作人员医院工作人员呼吸道防护能力评价

Establishment of a Predictive Diagnostic Model for Acute Mycoplasma Pneumoniae Infection in Elderly Patients with Community-acquired Pneumonia

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Biomedical and Environmental Sciences 2017年第7期30卷 540-544页

作者： XiAO hong li XIN De li WANG Yan CUI li Jian liU Xiao Ya liU song song li hong liU Chun ling YIN Cheng hong Department of Emergency Medicine Beijing Friendship Hospital Capital Medical University Beijing 100050 China Beijing Institute of Clinical Medicine Beijing Friendship Hospital Capital Medical University Beijing 100050 China Department of Infectious Disease and Critical Care Medicine Beijing Friendship Hospital Capital Medical University Beijing 100050 China Department of Internal Medicine Beijing Obstetrics and Gynaecology Hospital Capital Medical University Beijing 100026 China Respiratory Department Beijing Friendship Hospital Capital Medical University Beijing 100050 China Department of Emergency Medicine Beijing Guang Wai Hospital Beijing 100080 China Department of Infectious Disease Air Force General Hospital PLA Beijing 100142 China

We established a diagnostic model to predict acute Mycoplasma pneumoniae （M. pneumonia） infection in elderly Community-acquired pneumonia （CAP） patients. We divided 456 patients into acute and non-acute M. pneumoniae infection groups. Binary logistic regression and receiver operating characteristic （ROC） curves were used to establish a predictive model. The following independent factors were identified： age 〉 70 years; serum cTNT level 〉 0.0S ng/mL; lobar consolidation; mediastinal lymphadenopathy; and antibody titer in the acute phase 〉 1：40. The area under the ROC curve of the model was 0.923 and a score of 2 7 score predicted acute M. pneumoniae infection in elderly patients with CAP. The predictive model developed in this study has high diagnostic accuracy for the identification of elderly acute M. pneumoniae infection.

关键词： in as of were Establishment of a Predictive Diagnostic Model for Acute Mycoplasma Pneumoniae Infection in Elderly Patients with Community-acquired Pneumonia for with