集体经营性建设用地入市农户满意度影响因素研究——基于Logistic-ISM模型的分析

农户满意程度可以反映政策改革成效,探究农户集体经营性建设用地入市满意度影响因素,有助于评价政策实施效果,同时对提升农村发展和农民幸福感也有一定的现实意义.采用问卷调查和访谈的方式,选取重庆市大足区作为研究区域,基于Logistic模型确定农户满意度的影响因素,结合ISM模型分析各影响因素之间的层次关系,对农民的政策实施满意度影响因素进行实证分析.研究结果显示:(1)针对入市实施效果,绝大部分农户持满意态度,不满意的地方集中在收益分配不及时和环境污染方面;(2)家中是否有村干部、生态环境变化情况、是否参与表决、分配公平性、入市实际收益、程序透明性、入市风险存在情况、对入市土地所有者的认知对入市农户满意度有显著影响.其中对入市土地所有者的认知、入市风险存在情况、入市实际收益为表层直接因素,中层间接因素有生态环境变化情况、是否参与表决、分配公平性以及程序透明性,家中是否有村干部为深层根源因素.应进一步完善土地产权制度,明晰入市到期后土地权属问题;健全监督管理机制,建立集体经营性建设用地入市单位的产业目录和准入标准制度;完善收益分配机制,制定集体土地入市指导性分配意见;将村集体负责人纳入政府基层领导队伍体系,提高程序透明性.

The Status Quo of Chinese Agro-products Logistics and the Establishment of the Third-Party Logistics Mode

The status quo of Chinese agro-products logistics is analyzed from the following five aspects:the circulation mode,exchange mode,storage and transportation situation,food security.The following problems in Chinese agro-products logistics are pointed out,including excessive circulation sections,bad time efficiency,single payment,slow circulation,backward information processing,obvious bullwhip effect,low logistics efficiency,low logistics technology,inadequate professional equipments,low standardization degree,organized operation mode and low degree of scale.The third-party logistics mode of agro-products is analyzed and the advantages of the mode are analyzed as well.Firstly,establishing information network through integrating circulation section to accelerate the circulation of agro-products;secondly,making the operation norms by providing professional equipments to secure the quality of agricultural products;thirdly,improving the core competitiveness of the whole logistics chain by intensifying specialized work division in each section of the supply chain;fourthly,through forming scale economy to reduce logistics costs and increase the diversity of products;fifthly,through signing contracts to clarify duties and responsibilities and materialize the profit integration of the supply chain.The measures for establishing the third-party logistics of agro-products are put forward,including establish the awareness and concept of socialized logistics services;intensify the support on the third-party logistics enterprises of agro-products;lay stress on the cultivation of logistics talents of agro-products;and vigorously apply the modern marketing means.

A Positive Analysis for BPR of the Third Party Logistics

Facing the opportunities and challenges of China’s en try into WTO, logistics enterprises take BPR as an important way to improve the core competence.But modern logistics is a systematic engineering and its require ments are the standardization and normalization for enhancing the Chinese enterp rises’ level of logistic activities.This paper reveal the importance of manageme nt technique,information technique and business model in enterprise’s BPR throug h the positive analysis for business process of the third party logistics as a new system after reengineering businees process. Reorganization of marketing target. The characters of business procedure after N ew Sunshine recomposed include: "the last mile " service systems of logistics; s etting up HUB to control many end-points in big and middle cities, setting up s ingle-points in small cities, the small parts acting delivering system which st yle of "assembly and allot" are made of in. Reorganization of business model. The New Sunshine reorganized has three aspects of business model which set up: HUB, end-point and single-point. Reorganization of business process.The mainly business process of restructure Ne w Sunshine include : standard quote declaring prices to all attendants; on line, timely and exactly declaring prices; The net contract of B2C work on line; Tran smit to attendant; Logistice operating; feedback the working information; User t rack goods condition; Settling information; paying and so on, the different busi ness can separate into kinds of right corresponding to the business process, suc h as the picture of distributing parcel, ordering, moving, picking, transporting , delivering, information, inquiring and settling. Set up standard systems. Aims to execute standard management is to make distribu te and logistics for norm and standard, according to the resources share tog ether with the progresses especially and base on reducing the necessary expenses to reduce the living expenses, while low cost and effectively to ensure the goo d service for satisfy the present and potential needs of the customers.

Research on Resources Integration of the Fourth Party Logistics based on Multiple Agent

The key of the effective operation for the fourth party logistics is to integrate logistics resources with supply chain management concept and technology. According to the essence of the fourth party logistics resources integration, understand the characteristics of complexi .ty, the virtual and dynamic and so on, the paper analyzed the three kinds of Agent attribute for fourth party logistics resources integration system using the Agent technology and the principle, and then puts forward the fourth party logistics resources integration model of based on multi Agent.

Hybrid Intelligent Approach for the Selection of Third-Party Reverse Logistics Provider under Uncertainty

A hybrid intelligent approach is proposed to help the decision maker to select the appropriate third-party reverse logistics provider. The following process is included: firstly,the evaluation team is established to determine the selection criteria and evaluate them by triangular fuzzy numbers; secondly,calculate the weight of criteria by the proposed hybrid algorithm integrating particle swarm optimization( PSO) and simulated annealing( SA); then, the performance evaluation for each supplier is predicted by the proposed self-feedback neural network( SFBNN) based on the historical data. A numerical example is also presented to interpret the methodology above.

Integrated logistics facilities network design for 3PLS under uncertainty

According to the operational characteristics of the logistics networks for the third party logistics supplier （3PLS）, the forward and reverse logistics networks together for 3PLS under the uncertain environment are designed. First, a fuzzy model is proposed by taking multiple customers, multiple commodities, capacitated facility location and integrated logistics facility layout into account. In the model, the fuzzy customer demands and transportation rates are illustrated by triangular fuzzy numbers. Secondly, the fuzzy model is converted into a crisp model by applying fuzzy chance constrained theory and possibility theory, and one hybrid genetic algorithm is designed for the crisp model. Finally, two different examples are designed to illustrate that the model and solution discussed are valid.

S100钙结合蛋白β与α突触核蛋白与帕金森病患者抑郁及运动障碍的关系

目的研究帕金森病(PD)患者血清S100钙结合蛋白β(S100β)及α突触核蛋白(α-syn)水平与患者抑郁及运动障碍的关系。方法选择2022年1月至12月聊城市人民医院收治的PD患者194例,根据汉密尔顿抑郁量表评分分为非抑郁组102例(0~13分)及抑郁组92例(≥14分)。运动障碍采用Hoehn-Yahr(H-Y)分级及统一帕金森病评定量表Ⅲ(UPDRS-Ⅲ)进行评分,用多因素logistic回归分析PD患者抑郁的独立危险因素,用Spearman相关性分析血清S100β及α-syn水平与患者抑郁及运动障碍的关系。结果抑郁组体质量指数低于非抑郁组,H-Y分级、UPDRS-Ⅲ评分、S100β、α-syn均高于非抑郁组,差异有统计学意义(P<0.05,P<0.01)。多因素logistic回归分析显示,H-Y分级、UPDRS-Ⅲ评分、S100β、α-syn为PD患者抑郁的独立危险因素(P<0.05)。Spearman相关性分析显示,PD患者S100β水平与H-Y分级、UPDRS-Ⅲ评分呈正相关(r=0.698,P=0.005;r=0.637,P=0.011);α-syn水平与H-Y分级、UPDRS-Ⅲ评分呈正相关(r=0.654,P=0.021;r=0.611,P=0.035)。ROC曲线显示,S100β、α-syn诊断PD患者抑郁的截断值分别为486.65μg/L、3894.27 ng/L,曲线下面积分别为0.889(95%CI:0.812~0.923)、0.761(95%CI:0.714~0.828),S100β曲线下面积显著优于α-syn(P<0.05)。结论PD患者血清S100β、α-syn水平与其抑郁发生及运动功能障碍密切相关。

Development of Agricultural Product Logistics from the Perspective of the 4PL

From the perspective of the Fourth Party Logistics(4PL),this paper elaborates the concept,background and development plight of agricultural products logistics,advises developing 4PL under the background of rapid development of agricultural products and logistics,etc.and explores issues of information,efficiency and supervision of agricultural products logistics,draws the conclusion that only construct an 4PL agricultural products logistics system can alleviate the aporia of cost,and speed the efficiency of China's agricultural products logistics.

ASD与非ASD语言发育迟缓儿童的语言行为能力差异分析

目的通过比较孤独症谱系障碍(autism spectrum disorder,ASD)与非ASD语言发育迟缓儿童的各项语言行为能力,分析两者的特征差异。方法回顾收集2020年1月至2022年12月就诊的确诊为ASD(98例)和非ASD(122例)语言发育迟缓儿童的年龄、性别、ABC量表和S-S量表得分资料,对两组儿童的结果先进行单因素分析,对单因素分析有统计学差异的项目进行多因素二元logistic回归分析。结果经单因素分析,两组儿童年龄无统计学差异,其他项目包括性别,S-S交流态度能力、S-S操作性课题能力、S-S语言理解能力、S-S语言表达能力和ABC总分均有统计学差异(均P<0.05)。采用输入法把两组有差异的性别、S-S交流态度能力、S-S操作性课题能力、S-S语言理解能力、S-S语言表达能力和ABC总分共6个项目进行多因素二元logistic回归分析,结果表明S-S交流态度能力和ABC总分两个项目是区分两组儿童的独立影响因素(均P<0.05),S-S交流态度不良和ABC总分高均是危险因素。结论S-S交流态度能力和ABC总分是区分ASD和非ASD语言发育迟缓儿童的独立影响因素,临床上对于S-S交流态度不良及ABC总分高的语言发育迟缓儿童要高度警惕是否ASD儿童。

Current Situations and Problems of Logistics for Guangxi Fresh Agricultural Products in the New Period and Recommendations

In recent years,Guangxi realized consecutive bumper harvests in fresh agricultural products,leading increase of logistics demand;logistics infrastructure begins to take shape,and logistics of fresh agricultural products takes on diversified development form with wholesale market as main form. However,traditional fresh agricultural products are not selling well and it lacks construction of supply chain; the construction of logistics information system for fresh agricultural products lags behind; organizational level of production and operation of fresh agricultural products is low. Through analyzing current situations and existing problems of logistics of Guangxi fresh agricultural products in the new period( 21 st century),this paper came up with recommendations for developing logistics of fresh agricultural products of Guangxi. Government should increase policy and financial support,build and manage supply chain of fresh agricultural products,accelerate construction of logistics information system for agricultural products,and improve organizational level of logistics of fresh agricultural products,to ensure healthy development of logistics of fresh agricultural products in Guangxi.

基于随机森林和Logistic回归的大脑半球凸面脑膜瘤显微镜术后继发性癫痫影响因素分析

目的探讨大脑半球凸面脑膜瘤显微镜术后继发性癫痫影响因素,建立多因素Logistic回归模型、随机森林模型,对比两种模型对显微镜术后继发性癫痫的预测效能。方法选取2020年1月—2023年1月收治的90例大脑半球凸面脑膜瘤显微镜术后继发性癫痫作为研究组,同期90例大脑半球凸面脑膜瘤显微镜术后无继发性癫痫作为对照组。采用单纯随机抽样方法,分别从研究组、对照组抽取80%样本量作为训练集,剩余20%作为测试集。统计2组人口学特征、实验室指标,分别构建多因素Logistic回归模型、随机森林模型,采用受试者工作特征(ROC)曲线及曲线下面积(AUC)评价两种模型对显微镜术后继发性癫痫的预测效能。结果研究组血清同型半胱氨酸(Hcy)、S100钙结合蛋白B(S100B)、神经元特异性烯醇化酶(NSE)水平高于对照组,血清甘丙肽(GAL)水平低于对照组(P<0.05);研究组术后瘤腔出血、术中神经电生理监测异常、术后脑积水占比高于对照组(P<0.01,P<0.05);多因素Logistic回归分析显示,Hcy、NSE、S100B、术后脑积水、术中神经电生理监测异常为显微镜术后继发性癫痫影响因素(P<0.01);随机森林模型分析显示,不同变量中排名前5位依次为NSE、S100B、Hcy、术后脑积水、术中神经电生理监测异常;随机森林模型预测显微镜术后继发性癫痫的AUC大于多因素Logistic回归模型(P<0.05)。结论Hcy、NSE、S100B、术后脑积水、术中神经电生理监测异常为大脑半球凸面脑膜瘤显微镜术后继发性癫痫影响因素,基于上述因素构建的多因素Logistic回归模型可直观解释不同变量对显微镜术后继发性癫痫发生的风险度,而随机森林模型对显微镜术后继发性癫痫的预测效能更优,有助于临床制订防治措施。

基于Logistic回归的古代玻璃制品化学成分分析和研究

文章主要通过研究玻璃含有的不同化学成分,分析和鉴别古代的玻璃制品。首先分析了现有玻璃文物的数据,利用Spearman’s rank correlation coefficient和卡方检验表面分化、纹饰、颜色和玻璃类型之间的联系,采用Logistic回归鉴别未知文物,分析其所属的类型,并分析了分类结果的灵敏度。通过分析可知,文章采用的分类方法,能较好地通过化学成分对玻璃进行分类。

基于熵权-TOPSIS法的第三方物流企业服务质量提升研究

物流企业服务质量关乎着快递企业的长远发展,是企业提升竞争力的关键因素,只有提升快递企业物流服务质量,才能不断提升企业的竞争力。以ST快递公司为研究对象,设计了快递企业物流服务质量的问卷调查,利用改进后的SERVQUAL模型,并运用熵权-TOPSIS法,对调查问卷的数据进行整理和计算。结果表明:(1)移情性>可靠性>时效性>安全保密性>有形性;(2)这19项评价指标中,Q2包裹整齐有序,易于取件、Q3快递的价格合理、Q4快递可以实时追踪、Q6员工的业务熟练、Q7退货方便快捷、Q10快递及时发货、Q13网点能及时通知取件,这7个评价指标较低,不到0.2。指出了ST快递公司的服务质量相对较低,很有提升的必要。

China's logistics market:the road to wealth

The total value of China’s do mestic logistics in the first quarter of 2004 arrived at 8.21 trillion yuan(US$993billion),31.7 percent higher than the corresponding period last year,according to statistics from the national logistics information center.

China's logistics reform imperative

China’s logistics market is still fledg-ling and muddy,said Ding Junfa,vice-presi-dent of the China Federation of Logisticsand Purchasing. "We are expected to come up witha set of new rules and policies to cleanup industrial monopolies,excessive ad-ministrative intervention and regionalprotectionism,"said Ma Liqiang,direc-tor of the Economic Operations Bureauunder the National Develonment

基于粒子群优化算法的Logistic模型参数估计

将Logistic模型的参数估计问题转化为一个多维无约束函数优化问题，然后利用粒子群优化算法（PSO）的全局搜索能力对此问题求解.仿真实验中所使用的数据包括真实数据和随机采样数据.实验结果表明，在这两种数据条件下PSO算法均能够较准确地估计获得Logistic模型的参数，证实了PSO算法是Logistic模型参数估计的一种可靠有效的算法.同时也分析了参数维数和噪声对PSO算法的收敛性和稳定性的影响.

城市化Logistic过程的阶段划分及其空间解释——对Northam曲线的修正与发展

城市化过程在宏观意义上是一种Logistic过程,可以采用S形曲线描述。Northam注意到城市人口比重变化的Logistic曲线特征,并且将其分为三个演化阶段。Northam曲线在国内城市地理学研究中具有较大的影响,但其划分结果不尽准确,前因后果也未澄清。借助系统论的有关思想,从城市—乡村人口的异速生长关系出发,导出城市化水平的Logistic方程,揭示城市化过程的理论基础;进而运用导数原理、Logistic曲线的内禀特征尺度以及城市化水平与经济发展水平的关系模型修正并且改进了Northam曲线,得到一个四阶段的划分结果,最后对重新分段的结果进行了地理空间解释。

基于Logistic模型的农地流转农户意愿影响因素研究

为了分析影响农户农地流转的因素,为农地流转的定性研究提供量化的依据和支持,采用抽样调查、Logistic模型进行分析。结果表明,农户参与土地流转的意愿是受到非农就业率等多种因素的影响和制约的,农户农地流转意愿的影响因素按贡献率由大到小排序为非农就业率、恩格尔系数、单位面积农业纯收入、交通便捷度、签订流转书面合同比率、农地流转主导因素、家庭最高文化程度、粮食安全保障率、经济发展水平、家庭人口数、农业劳动力人数和被访者年龄。为提高农户参与土地流转的积极性,促进农村土地流转,建议给农民创造更多的就业机会,提高农业比较效益,完善农村基础设施,发挥政府的监督管理和服务职能,加强部分农民的思想改造工作,扩大农民受教育的途径,提高农民文化素质。

Logistic回归模型评价常规超声及实时剪切波弹性成像技术对甲状腺结节良恶性鉴别诊断的价值

目的应用Logistic回归模型评价常规超声特征及实时剪切波弹性成像技术对甲状腺良恶性结节鉴别诊断的价值。方法对80例甲状腺结节患者(108个结节)行常规超声及实时剪切波弹性成像检查,测得结节的杨氏模量值,以病理结果为金标准,应用ROC曲线得出良恶性结节的诊断临界值。总结结节术前二维灰阶、彩色多普勒及剪切波弹性成像的声像图特征,筛选出对甲状腺结节良恶性鉴别诊断最有价值的指标,并建立二分类Logistic回归模型。结果病理诊断108个甲状腺结节,良性组36个,恶性组72个。甲状腺良、恶性结节的最大杨氏模量值分别为(46.43±20.84)k Pa和(81.79±32.06)k Pa;平均杨氏模量值分别为(36.59±19.29)k Pa和(62.96±29.13)k Pa。良、恶性结节杨氏模量最大值和平均值差异均有统计学意义(P<0.05)。最大值与平均值ROC曲线下面积分别为0.828和0.783,分别以最大值52.00 k Pa和平均值37.35 k Pa作为诊断截点值,其诊断敏感度、特异度为91.7%、61.1%和86.1%、55.6%。Logistic回归分析显示进入回归方程的3个特征变量为纵横比、钙化及杨氏模量值,该Logistic回归模型对甲状腺结节良恶性预报的正确率为89.7%(35/39),ROC曲线下面积为0.949。结论实时剪切波弹性成像技术有助于鉴别甲状腺结节的良恶性,二分类Logistic回归模型筛选出对甲状腺结节良恶性鉴别诊断有意义的诊断指标,具有较高的临床应用价值。

基于多因素Logistic回归分析的废旧物资处理系统设计与实现

废旧物资可以视为第二资源,废旧物资的合理回收利用可以大幅度降低生产成本,节约物资耗损,对构建环境友好型社会具有积极意义。本文针对目前废旧物资处理过程中出现的信息化水平失衡现象,综合权衡多个影响因素,设计并实现了一款基于多因素Logistic回归分析的废旧物资处理系统,采用多因素Logistic回归分析定量分析废旧物资处理机制与多影响因素之间的概率型非线性回归关系。该系统采用B/S架构,MVC开发模式进行整体架构设计,采用ASP.NET语言实现动态Web网页,采用协同过滤技术和Apriori算法进行废旧物资处理个性化推荐和数据挖掘。平台设计完成后,实际运行表明平台整体运行稳定,对提高废旧物资信息化处理水平具有积极意义。