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太阳翼驱动机构对卫星姿态扰动特性评估

中国空间科学技术 2024年第1期44卷 75-82页

作者：宋慧心晏也绘李奎航天行云科技有限公司武汉430040

为了研究太阳翼驱动机构(solar array drive assembly,SADA)对卫星平台姿态的扰动特性,建立了考虑SADA驱动太阳翼旋转的整星姿态动力学模型,设计了一种测量SADA带载运动特性的试验方案。通过试验得到了SADA驱动负载的运动特性曲线,对试... 详细信息

为了研究太阳翼驱动机构(solar array drive assembly,SADA)对卫星平台姿态的扰动特性,建立了考虑SADA驱动太阳翼旋转的整星姿态动力学模型,设计了一种测量SADA带载运动特性的试验方案。通过试验得到了SADA驱动负载的运动特性曲线,对试验数据进行拟合得到了SADA带载驱动的传递函数。将拟合的SADA运动模型代入到整星姿态动力学模型中进行仿真,得到了考虑SADA运动时的卫星姿态控制指标。基于SADA的运动特性和安装方式,设计了将两台SADA驱动信号的相位交错180°的扰动抑制策略。仿真验证了该策略对SADA运动的扰动抑制效果,具有良好的工程应用价值。

关键词：整星姿态动力学模型太阳翼驱动机构(SADA) 运动特性传递函数扰动抑制

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Role of post-hepatectomy portal hypertension in predicting the outcome of hepatocellular carcinoma after curative resection

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Portal Hypertension & Cirrhosis 2024年第2期3卷 75-85页

作者： Jian lin liangrui Chen Xiaodong Shi Fengwei li Qian Xu Hongzhi liu Jingfeng liu kui Wang Feng Shen Department of Hepatic Surgery Eastern Hepatobiliary Surgery HospitalSecond Military Medical UniversityShanghaiChina Department of Public Health Fujian University of Traditional Chinese MedicineCollege of Integrative MedicineFuzhouFujianChina Department of Hepatopancreatobiliary Surgery Mengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouFujianChina Department of Hepatopancreatobiliary Surgery Cancer Hospital of Fujian Medical UniversityFuzhouFujianChina

Aims:Portal venous pressure frequently increases after a major *** aimed to assess the outcomes of patients with hepatocellular carcinoma(HCC)with different post-hepatectomy portal pressure statuses and the predictive factors correlated with prognosis and post-hepatectomy portal hypertension(PHPH).Methods:Data from consecutive patients who underwent curative-intent hepatectomy for HCC at the Eastern Hepatobiliary Surgery Hospital and Mengchao Hepatobiliary Hospital of Fujian Medical University between January 2008 and December 2016 were retrospectively *** were followed up until March 1,*** was defined as new-onset portal hypertension(PH)in patients without preoperative PH within 1 month of *** were classified into two groups according to the presence or absence of PHPH:non-PH and *** clinicopathological characteristics were compared between the two *** and multivariate analyses were used to identify independent risk factors for early and late recurrence of HCC,overall survival(OS),and ***:Disease-free survival rates were significantly higher in the non-PH group(n=1068)than those in the PHPH group(n=423)(62.0%,39.0%,and 31.0%vs.46.2%,24.5%,and 19.3%at 1,3,and 5 years,respectively;all p40 U/L,and major hepatectomy were identified as independent risk factors for ***:PHPH was associated with early recurrence of HCC and poor OS but not with late ***,PHPH may be an attractive target for therapeutic inte

关键词： hepatocellular carcinoma hepatectomy portal hypertension prognosis predictive factors

何种领导行为更能促进知识共享?来自元分析的证据

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南开管理评论 2024年第2期27卷 127-136,I0024,I0025页

作者：尹奎迟志康彭坚李培凯王宏蕾北京科技大学经济管理学院东南大学经济管理学院利兹大学商学院东北农业大学经济管理学院

领导行为是知识共享的重要影响因素,但尚不明确何种领导行为更能促进知识共享。本研究基于自我决定理论,对220项实证研究的223个独立样本(N=73747)进行了元分析,考察不同导向领导行为与知识共享的关系以及两者关系的影响因素。结果表明:... 详细信息

领导行为是知识共享的重要影响因素,但尚不明确何种领导行为更能促进知识共享。本研究基于自我决定理论,对220项实证研究的223个独立样本(N=73747)进行了元分析,考察不同导向领导行为与知识共享的关系以及两者关系的影响因素。结果表明:(1)变革导向、任务导向、关系导向领导行为与知识共享正相关,破坏性领导行为与知识共享负相关,并且相关性依次降低;(2)相比建设性领导行为,破坏性领导行为对知识共享的解释力有限(2.58%);(3)中国内地情境下变革导向领导行为与知识共享的相关性高于西方;(4)相比服务业、高新技术业,制造业中的建设性领导行为与知识共享的相关性更高,破坏性领导与知识共享的负相关性在服务业中最低。上述结论对后续领导行为与知识共享关系的理论研究,以及在实践管理者的知识管理方面具有借鉴意义。

关键词：领导行为知识共享元分析自我决定理论

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父母体重体形相关批评言论对青少年进食障碍症状的影响

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中国临床心理学杂志 2024年第2期32卷 344-349,343页

作者：李丹阮淑贞王葵中国科学院心理健康重点实验室中国科学院心理研究所北京100101 中国科学院大学心理学系北京100049 广州市真光中学广州510000

目的:考察父母体重、体形相关的批评言论对青少年进食障碍症状的影响。方法:采用问卷法调查了630名中学生(363名女生,267名男生)的来自父母体重、体形相关批评言论的情况及进食障碍症状水平,运用SPSS进行相关分析、差异检验和回归分析... 详细信息

目的:考察父母体重、体形相关的批评言论对青少年进食障碍症状的影响。方法:采用问卷法调查了630名中学生(363名女生,267名男生)的来自父母体重、体形相关批评言论的情况及进食障碍症状水平,运用SPSS进行相关分析、差异检验和回归分析。结果:来自父母的体重、体形相关批评言论与男女生的进食障碍症状均有显著相关。在控制被试BMI的情况下,来自母亲的批评言论能显著预测男女生的进食障碍症状,而父亲的批评言论仅能显著预测男生进食障碍症状。结论:来自父母的体重、体形相关的批评言论与青少年进食障碍症状密切相关,其中来自母亲的影响尤为明显。

关键词：父母体重体形批评进食障碍青少年

Screening for metastasis-related genes in mouse melanoma cells through sequential tail vein injection

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Biophysics Reports 2024年第1期10卷 15-21页

作者： Qinggang Hao Rui Dong Weiyu Bai Dong Chang Xinyi Yao yingru Zhang Huangying Xu Huiyan li Xiang kui Feng Wang Yan Wang Chengqin Wang Yujie Lei Yan Chen Junling Shen Lei Sang Yan Bai Jianwei Sun Center for life Sciences Yunnan Key Laboratory of Cell Metabolism and Diseases State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan School of Life Sciences Yunnan University Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province Yan'an Hospital Affiliated to Kunming Medical University Shandong Provincial Key Laboratory of Animal Resistance Biology Collaborative Innovation Center of Cell Biology in Universities of Shandong Center for Cell Structure and Function Institute of Biomedical Science College of Life Sciences Shandong Normal University Department of Pathology The Second Affiliated Hospital of Kunming Medical University State Key Laboratory of Bioactive Molecules and Druggability Assessment Institute of Genomic Medicine College of Pharmacy Jinan University Department of Pathology School of Basic Medicine Qingdao University Department of Thoracic Surgery Yunnan Cancer Hospital & The Third Affiliated Hospital of Kunming Medical University & Yunnan Cancer Center

Tumor metastasis, responsible for approximately 90% of cancer-associated mortality, remains poorly understood. Here in this study, we employed a melanoma lung metastasis model to screen for metastasis-related genes. By sequential tail vein injection of mouse melanoma B16F10 cells and the subsequently derived cells from lung metastasis into BALB/c mice, we successfully obtained highly metastatic B16F15 cells after five rounds of in vivo screening. RNA-sequencing analysis of B16F15 and B16F10 cells revealed a number of differentially expressed genes, some of these genes have previously been associated with tumor metastasis while others are novel discoveries. The identification of these metastasis-related genes not only improves our understanding of the metastasis mechanisms, but also provides potential diagnostic biomarkers and therapeutic targets for metastatic melanoma.

关键词： Melanoma Lung metastasis model Gene screening Tail vein injection

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财产赠与个人所得税处理比较分析

国际税收 2024年第8期 59-64页

作者：禹奎李霄宇中国人民大学财政金融学院

本文通过分析部分发达国家(地区)的个人所得税制度发现,其赠与财产增值额的个人所得税处理包括课税模式、递延模式和免税模式三种模式。绝大多数发达国家(地区)未将接受赠与财产纳入应税所得,不计征个人所得税。超过半数的发达国家(地区... 详细信息

本文通过分析部分发达国家(地区)的个人所得税制度发现,其赠与财产增值额的个人所得税处理包括课税模式、递延模式和免税模式三种模式。绝大多数发达国家(地区)未将接受赠与财产纳入应税所得,不计征个人所得税。超过半数的发达国家(地区)对财产赠与课征遗产和赠与税,开征遗产和赠与税的发达国家(地区)对赠与财产的个人所得税处理主要选择免税模式和递延模式,并对财产赠与相关的纳税义务有清晰明确的界定。在借鉴相关经验的基础上,本文提出我国对财产赠与个人所得税处理宜选择递延模式,并应进一步完善个人所得税制度设计,包括明确财产赠与不视同销售、接受赠与不纳入应税所得,以及受赠人接受赠与财产的原值口径。

关键词：财产赠与个人所得税遗产和赠与税

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云环境下协同作业的密码服务优化调度算法

通信学报 2024年第7期45卷 84-100页

作者：曹晓刚李凤华耿魁李子孚寇文龙中国科学院信息工程研究所北京100085 中国科学院大学网络空间安全学院北京100049 网络空间安全防御重点实验室北京100085

针对云环境下密码按需服务中多个计算作业协同服务的需求,提出了多密码作业协同服务的调度算法,能够充分应对密码算法种类多、并发需求高、作业随机交叉和作业负载瞬时激增等云环境下的新挑战。考虑每个密码计算作业之间的依赖关系、密... 详细信息

针对云环境下密码按需服务中多个计算作业协同服务的需求,提出了多密码作业协同服务的调度算法,能够充分应对密码算法种类多、并发需求高、作业随机交叉和作业负载瞬时激增等云环境下的新挑战。考虑每个密码计算作业之间的依赖关系、密码作业的完成时间需求以及密码计算单元的最大算力,以最小化能耗、迁移成本和瞬时激增负载的适应度为优化目标,将多密码作业协同服务调度问题建模为多目标优化的作业流调度问题,并提出“选择-排序”两阶段调度算法,在选择阶段,采用改进NSGA-III算法为密码计算作业选择合适的计算单元,在排序阶段,根据作业紧迫程度决定执行顺序。仿真结果表明,所提调度算法在能耗、迁移成本和对瞬时激增的作业负载的适应度方面优于传统调度算法。

关键词：云计算密码按需服务作业流调度 NSGA-III

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Towards an actionable One Health approach

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贫困所致传染病(英文) 2024年第2期13卷 1-6页

作者： Zhang Xiao-Xi Lederman Zohar Han Le-Fei Schurer Janna M. Xiao li-Hua Zhang Zhi-Bing Chen Qiu-Lan Pfeiffer Dirk Ward Michael P. Sripa Banchob Gabri?l Sarah Dhama Kuldeep Acharya Krishna Prasad Robertson Lucy J. Deem Sharon L. Aenishaenslin Cécile Dantas-Torres Filipe Otranto Domenico Grace Delia Wang Yang li Peng Fu Chao Poeta Patrícia Rahman Md. Tanvir Kassegne Kokouvi Zhu Yong-Zhang yin Kun liu Jiming Wang Zhao-Jun Guo Xiao-kui Gong Wen-Feng Schwartl?nder Bernhard Ren Ming-Hui Zhou Xiao-Nong School of Global Health Chinese Center for Tropical Diseases Research Shanghai Jiao Tong University School of Medicine Shanghai People’s Republic of China Institute of One Health Shanghai Jiao Tong University Shanghai People’s Republic of China Medical Ethics and Humanities Unit Hong Kong University Hong Kong People’s Republic of China Center for One Health University of Global Health Equity Butaro Rwanda College of Veterinary Medicine South China Agricultural University Guangzhou People’s Republic of China School of Ecology and Environment Hainan University Haikou Hainan People’s Republic of China Branch of animal and vector-borne diseases Division of Infectious Disease Control Chinese Center for Disease Control and Prevention Beijing People’s Republic of China Centre for Applied One Health Research and Policy Advice Department of Infectious Diseases and Public Health Jockey Club College of Veterinary Medicine and Life Sciences City University of Hong Kong Hong Kong SAR People’s Republic of China Department of Pathobiology and Population Sciences Royal Veterinary College London United Kingdom Sydney School of Veterinary Science The University of Sydney Camden Australia Tropical Disease Research Center Department of Tropical Medicine Faculty of Medicine Khon Kaen University Khon Kaen Thailand Laboratory of foodborne parasitic zoonoses Department of translational physiology infectiology and public health Chair Faculty Committee on Internationalisation Faculty of Veterinary Medicine Ghent University Merelbeke Belgium Division of Pathology ICAR-Indian Veterinary Research Institute (IVRI) Bareilly Uttar Pradesh India Department of livestock Services Animal Quarantine Office-Kathmandu Budhanilkantha Kathmandu Nepal Parasitology Department of Paraclinical Sciences Faculty of Veterinary Medicine Norwegian University of Life Sciences ?s Norway One Government Drive Saint Louis Zoo Institute for Conservation Medicine St. Louis USA Groupe de Recherche en épidémi

Background Despite the increasing focus on strengthening One Health capacity building on global level, challenges remain in devising and implementing real-world interventions particularly in the Asia-Pacific region. Recognizing these gaps, the One Health Action Commission (OHAC) was established as an academic community for One Health action with an emphasis on research agenda setting to identify actions for highest *** text This viewpoint describes the agenda of, and motivation for, the recently formed OHAC. Recognizing the urgent need for evidence to support the formulation of necessary action plans, OHAC advocates the adoption of both bottom-up and top-down approaches to identify the current gaps in combating zoonoses, antimicrobial resistance, addressing food safety, and to enhance capacity building for context-sensitive One Health *** By promoting broader engagement and connection of multidisciplinary stakeholders, OHAC envisions a collaborative global platform for the generation of innovative One Health knowledge, distilled practical experience and actionable policy advice, guided by strong ethical principles of One Health.

关键词： One Health Global Health One Health Action Commission Research agenda

贵州县域综合经济密度时空特征及影响因素研究

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长江流域资源与环境 2024年第1期33卷 27-39页

作者：应奎黄小丽丁金宏华东师范大学人口研究所上海200241

经济均衡发展是区域经济高质量发展的重要内涵,这也是贵州等相对落后省份所面临的经济新常态发展要求。以2000、2010和2020年为基础,构建县域经济密度评价指标体系,运用熵权TOPSIS法、核密度估计法、空间自相关方法和空间面板模型,测算... 详细信息

经济均衡发展是区域经济高质量发展的重要内涵,这也是贵州等相对落后省份所面临的经济新常态发展要求。以2000、2010和2020年为基础,构建县域经济密度评价指标体系,运用熵权TOPSIS法、核密度估计法、空间自相关方法和空间面板模型,测算经济密度综合得分,探究其时空特征及影响因素。结果表明:(1)2000~2020年,贵州县域经济密度总体上随时间递增,核密度曲线以多峰为主,主峰随时间不断增高且宽度呈小幅收缩状态。(2)空间上,经济密度高值中心不断缩减,2000~2010年以正增长县域为主,2010~2020年以负增长县域为主;全局空间自相关中,经济密度空间聚集程度先增后减,局部空间自相关则以高-高和低-低方式聚集为主。(3)经济密度在空间上存在显著的内生交互作用,邻近县域的经济密度每提升1%,将促进本地经济密度提升0.2%。(4)影响因素方面,人才禀赋与医疗床位对经济密度呈正向作用,其他要素呈负向作用;直接效应的影响强度排序为:人才禀赋>降水#>人口老龄化#>民族结构#>植被覆盖度#>医疗床位(#表示负向影响),空间溢出效应贡献大小排序为:人才禀赋>人口老龄化#>降水#>民族结构#>医疗床位。因此,贵州应注重经济发展的区域均衡性,在继续吸引人才和改善社会福利条件下,补齐民族县域经济发展短板。

关键词：经济密度熵权TOPSIS法时空特征空间滞后模型空间溢出贵州