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收入差距是否影响环境质量?——国内外研究综述

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中国人口·资源与环境 2020年第4期30卷 116-124页

作者：杨曼莉北京大学经济学院北京100871

近年来,收入差距扩大与环境质量恶化成为许多国家同时面临的问题,也让一些经济学家开始思考,这两者之间是否存在关联。继20世纪90年代环境库兹涅茨曲线提出以来,一些研究发现不仅收入的绝对水平会对环境质量产生影响,收入差距对环境质... 详细信息

近年来,收入差距扩大与环境质量恶化成为许多国家同时面临的问题,也让一些经济学家开始思考,这两者之间是否存在关联。继20世纪90年代环境库兹涅茨曲线提出以来,一些研究发现不仅收入的绝对水平会对环境质量产生影响,收入差距对环境质量也有影响。本文对这一课题的理论研究进行了梳理,发现现有理论中收入差距对环境质量的影响途径主要有三条。第一条途径是消费者途径,即收入差距影响着以消费为主的个人经济行为,进一步影响着社会消费总量和消费结构,及其过程中产生的污染总量。第二条途径是企业途径,即认为收入差距的扩大会削弱环保型产品的正外部性,不利于环保技术的创新活动,对未来环境质量的改善产生动态影响。第三条途径是政府途径,即认为收入差距会影响相关的环境政策方式与强度选择;而且在不同的社会政策决策机制下,收入差距对环境政策的影响也是不同的,现有的社会决策机制分析框架主要有两种——权利权重型社会决策规则和简单多数规则。此外,本文还对现存的主要实证研究进行了总结,发现大多数研究结论都支持收入差距对环境质量存在着影响,但这种影响并不是线性的。一方面,收入差距对环境的影响与研究的污染物种类有关,大多数研究都显示,收入不平等对CO 2排放和土壤污染存在着负向影响,但有关收入差距对空气污染和水污染影响的研究结论并不统一或并不显著。另一方面,这种影响还与经济发展水平相关,在高收入国家与低收入国家是不同的,存在着阈值效应。最后本文总结了针对中国的研究现状,讨论了其在我国的适用性。

关键词：收入差距环境质量消费行为环境政策

Treatment Outcomes in COVID-19 Patients with Brucellosis:Case Series in Heilongjiang and Systematic Review of literature

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Biomedical and Environmental Sciences 2023年第10期36卷 930-939页

作者： yang man li WANG Jing Ya ZONG Xing Yu GUAN li li Hui Zhen XIONG Yi Bai liU Yu Qin li Ting JI Xin Yu SHANG Xi Yu ZHANG Hui Fang GUO yang GONG Zhao Yuan ZHANG Lei TONG lin CHEN Ren Bo FAN Yi Pin QIN Jin WANG Fang liN Gang SHI Nan Nan WANG Yan Ping MA Yan Nanjing University of Chinese Medicine Nanjing 210023JiangsuChina Community Health Service management Center Dongcheng DistrictBeijing 100700China Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical SciencesBeijing 100700China Infectious Disease Hospital of Heilongjiang Province Harbin 150030HeilongjiangChina Institute of Information on Traditional Chinese Medicine China Academy of Chinese Medical SciencesBeijing 100700China Beijing University of Chinese Medicine Beijing 101121China

Objective Clinical characteristics and outcome in COVID-19 with brucellosis patients has not been well demonstrated,we tried to analyze clinical outcome in local and literature COVID-19 cases with brucellosis before and after *** We retrospectively collected hospitalization data of comorbid patients and prospectively followed up after discharge in Heilongjiang Infectious Disease Hospital from January 15,2020 to April29,***,epidemiological,clinical symptoms,radiological and laboratory data,treatment medicines and outcomes,and follow up were analyzed,and findings of a systematic review were *** A total of four COVID-19 with brucellosis patients were *** patient had active brucellosis before covid and 3 patients had nonactive brucellosis before *** median age was54.5 years,and all were males(100.0%).Two cases(50.0%)were moderate,and one was mild and asymptomatic,*** cases(75.0%)had at least one comorbidity(brucellosis excluded).All4 patients were found in COVID-19 nucleic acid *** C and D had only headache and fever on admission,*** cases were treated with Traditional Chinese medicine,western medicines for three cases,no adverse reaction occurred during *** patients were cured and ***,one case(25.0%)had still active brucellosis without re-positive COVID-19,and other three cases(75.0%)have no symptoms of discomfort except one case fell fatigue and anxious during the follow-up period after *** the literature review,two similar cases have been reported in two case reports,and were both recovered,whereas,no data of follow up after *** These cases indicate that COVID-19 patients with brucellosis had favorable outcome before and after *** clinical studies should be conducted to confirm our findings.

关键词： COVID-19 Brucellosis Treatment outcomes Sequelae Relapse

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网络控制系统的时延和负载分析

控制与决策 2006年第1期21卷 68-72页

作者：杨丽曼李运华北京航空航天大学自动化学院北京100083

针对运动体机械和大型制造装备多机电子系统协调运动控制所涉及的控制网络的特殊性,分别从控制和网络两方面给出了回路时延和网络时延的界定,并从目的、性质和获取方法等角度进行了比较.通过对网络时延的特性和评价指标的理论分析和数... 详细信息

针对运动体机械和大型制造装备多机电子系统协调运动控制所涉及的控制网络的特殊性,分别从控制和网络两方面给出了回路时延和网络时延的界定,并从目的、性质和获取方法等角度进行了比较.通过对网络时延的特性和评价指标的理论分析和数学描述,指出在系统运行过程中网络负载和负载波动是产生时延和时延抖动的直接原因,进一步讨论了控制网络中的负载构成和具体的估计方法.仿真结果验证了理论分析方法的有效性.

关键词：网络控制系统时延网络负载

The clinical evaluation of Iressa first-line treatment of senium advanced-stage non-small cell lung cancer

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The Chinese-German Journal of Clinical Oncology 2008年第4期7卷 203-206页

作者： Xiuhua Sun yang Zhang Xian Zhang Jing Yu Yinghua li Xiaoyan yang Zhaoxia Dai man li Department of Oncology the Second Affiliated Hospital Dalian Medical University Dalian 116023 China

Objective: To evaluate the response and the side effects of Iressa on the first line treatment in senium advanced stage non-small cell lung cancer. Methods: Sixteen non-small cell lung cancer patients were observed from November 2005 to September 2007, the date of patients belong to the Second Affiliated Hospital of Dalian Medical University. I was prescribed on the first line at oral dose of 250 mg daily as a continuous dose. Then the response and side-effects of Iressa were evalu-ated. Results: Among 16 patients, CR, PR, SD, PD were 0% (0/16), 37.5% (6/16), 50% (8/16), 12.5% (2/16) respectively. CR + PR + SD was 87.5% (14/16). Adverse events: rash 37.5% (6/16), dry skin 18.75% (3/16), itching of skin 12.5% (2/16), diarrhea 31.25 (5/16), and hepatic dysfunction (GPT increase) 12.5% (2/16). Conclusion: Iressa is active on the first line treatment in old age advanced stage non-small cell lung cancer. It is well tolerated with adverse events. The quality of life may be improved significantly.

关键词： lung neoplasms/therapy epidermal growth factor receptor Iressa

土地产权残缺与西北地区生态环境治理制度创新

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特区经济 2006年第3期 237-238页

作者：杨曼利西安文理学院经济与管理系西安陕西710065

西北地区经济发展面对的最大障碍是生态问题。作为生态环境治理制度创新核心的农村土地产权制度创新有助于稳定预期、扩大融资渠道、实现规模经济以及外部影响“内在化”,塑造出新的激励机制激发个人、企业参与生态建设的积极性。

关键词：产权残缺生态环境治理制度所有权

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西部生态治理中的生态效益补偿机制研究

特区经济 2006年第4期 236-237页

作者：杨曼利西安文理学院经济与管理系陕西西安710068

传统生态环境治理效果不佳的主要原因是激励功能缺失,不符合具有“经济人”特征的农户的真正需要。要实现生态建设的可持续发展,提高治理制度绩效,必须建立有效的生态效益补偿机制。本文分析了现行生态效益补偿机制的许多不完善之处,并... 详细信息

传统生态环境治理效果不佳的主要原因是激励功能缺失,不符合具有“经济人”特征的农户的真正需要。要实现生态建设的可持续发展,提高治理制度绩效,必须建立有效的生态效益补偿机制。本文分析了现行生态效益补偿机制的许多不完善之处,并提出了一些对策。

关键词：西部地区生态环境公共产品生态效益补偿机制经济人

Predictive value of a constructed artificial neural network model for microvascular invasion in hepatocellular carcinoma:A retrospective study

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 88-100页

作者： Hai-yang Nong Yong-Yi Cen Shan-Jin Lu Rui-Sui Huang Qiong Chen li-Feng Huang Jian-Ning Huang Xue Wei man-Rong liu lin li Ke Ding Department of Radiology The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina Department of Radiology Affiliated Hospital of Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Guangxi Clinical Medical Research Center for Hepatobiliary Diseases Affiliated Hospital of Youiiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Ultrasound The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina Department of Hepatobiliary Surgery The Third Affiliated Hospital of Guangxi Medical UniversityNanning 530031Guangxi Zhuang Autonomous RegionChina

BACKGROUND Microvascular invasion(MVI)is a significant risk factor for recurrence and metastasis following hepatocellular carcinoma(HCC)***,there is a paucity of preoperative evaluation approaches for *** To investigate the predictive value of texture features and radiological signs based on multiparametric magnetic resonance imaging in the non-invasive preoperative prediction of MVI in *** Clinical data from 97 HCC patients were retrospectively collected from January 2019 to July 2022 at our *** were classified into two groups:MVI-positive(n=57)and MVI-negative(n=40),based on postoperative pathological *** correlation between relevant radiological signs and MVI status was ***4.6 software and the mutual information method were employed to identify the top 10 dominant texture features,which were combined with radiological signs to construct artificial neural network(ANN)models for MVI *** predictive performance of the ANN models was evaluated using area under the curve,sensitivity,and *** models with relatively high predictive performance were screened using the DeLong test,and the regression model of multilayer feedforward ANN with backpropagation and error backpropagation learning method was used to evaluate the models’*** The absence of a pseudocapsule,an incomplete pseudocapsule,and the presence of tumor blood vessels were identified as independent predictors of HCC *** ANN model constructed using the dominant features of the combined group(pseudocapsule status+tumor blood vessels+arterial phase+venous phase)demonstrated the best predictive performance for MVI status and was found to be automated,highly operable,and very *** The ANN model constructed using the dominant features of the combined group can be recommended as a noninvasive method for preoperative prediction of HCC MVI status.

关键词： Hepatocellular carcinoma Texture analysis Magnetic resonance imaging Microvascular invasion Pseudocapsule Tumor blood vessels

大型轮式工程车辆转向系统的神经网络PID控制

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系统仿真学报 2005年第5期17卷 1185-1187,1191页

作者：袁海斌李运华袁海文杨丽曼北京航空航天大学自动化科学与电气工程学院北京100083

根据大型轮式工程车辆转向系统的对象特点和操纵方式,提出采用基于RBF神经网络控制器来改进常规PID控制器实现系统控制性能。该控制系统结构中,RBF神经网络辨识器(RBFNNI)实现对被控对象的Jacobian矩阵信息的辨识,神经网络控制器(NNC)... 详细信息

根据大型轮式工程车辆转向系统的对象特点和操纵方式,提出采用基于RBF神经网络控制器来改进常规PID控制器实现系统控制性能。该控制系统结构中,RBF神经网络辨识器(RBFNNI)实现对被控对象的Jacobian矩阵信息的辨识,神经网络控制器(NNC)是基于RBF神经网络实现的单神经元的PID控制器。在对算法进行改进的基础上设计了神经网络结构,并进行了被控对象的仿真分析。实际结果表明该控制方法具有较好的实用性和鲁棒性,可以用于多操纵模式工程车辆转向系统的控制。

关键词：工程车辆 RBF神经网络 PID控制转向系统

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机械电子专业课程设计的教学改革

实验室研究与探索 2012年第8期31卷 117-120,133页

作者：杨丽曼沈东凯北京航空航天大学自动化科学与电气工程学院北京100191

在"机械电子专业课程设计"现状分析的基础上,开展了教学内容与教学模式的改革与探索性实践。坚持航空航天特色和工程观点,将教学与科研相结合,更新丰富了课程设计题目,细化和规范化了课程设计过程。基于任务教学和研讨教学理论建立了集... 详细信息

在"机械电子专业课程设计"现状分析的基础上,开展了教学内容与教学模式的改革与探索性实践。坚持航空航天特色和工程观点,将教学与科研相结合,更新丰富了课程设计题目,细化和规范化了课程设计过程。基于任务教学和研讨教学理论建立了集中授课、分组协作、汇报与研讨相结合的多层次研究型教学模式和关注过程的综合成绩评定方法。初步的教学实践表明新的教学内容和方法激发了学生潜在的创新意识和自主学习的兴趣,在培养和提升创新实践能力与工程素养方面取得了显著效果。

关键词：机械电子专业课程设计教学改革工程素养研究型教学模式