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Toward the Design and Implementation of Traceability Engineering Tool Support
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作者 Subik Pokharel Hassan Reza 《Journal of Software Engineering and Applications》 2019年第6期249-265,共17页
Requirements of a system keep on changing based on the need of stakeholders or the system developers, making requirement engineering an important aspect in software development. This develops a need for appropriate re... Requirements of a system keep on changing based on the need of stakeholders or the system developers, making requirement engineering an important aspect in software development. This develops a need for appropriate requirement change management. The importance of requirements traceability is defining relationships between the requirements and artefacts extracted by the stakeholder during the software development life-cycle and gives vital information to encourage software understanding. In this paper, we have concentrated on developing a tool for requirement traceability that can be used to extend the requirement elicitation and identification of system-wide qualities using the notion of quality attribute scenarios to capture the non-functional requirements. It allows us to link the functional and non-functional requirements of the system based on the quality attribute scenarios template proposed by the Carnegie Mellon Software Engineering Institute (SEI). Apart from this, the paper focuses on tracing the functional and non-functional requirements of the system using the concept of requirement traceability matrix. 展开更多
关键词 REQUIREMENT ENGINEERING REQUIREMENT ENGINEERING tool tool support Quality Attributes REQUIREMENT TRACEABILITY Software ENGINEERING
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Utilization and Uptake of the UpToDate Clinical Decision Support Tool in Five Medical Schools in Uganda (August 2022-August 2023): A Partnership with the Better Evidence Program
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作者 Alison Annet Kinengyere Glorias Asiimwe +4 位作者 Adrine Nyamwiza Wilson Adriko Emmanuel Twinamasiko Arthur Karemani Julie Rosenberg 《International Journal of Clinical Medicine》 2025年第2期171-198,共28页
Background: Clinical decision support tools provide suggestions to support healthcare providers and clinicians, as they attend to patients. Clinicians use these tools to rapidly consult the evidence at the point of ca... Background: Clinical decision support tools provide suggestions to support healthcare providers and clinicians, as they attend to patients. Clinicians use these tools to rapidly consult the evidence at the point of care, a practice which has been found to reduce the time patients spend in hospitals, promote the quality of care and improve healthcare outcomes. Such tools include Medscape, VisualDx, Clinical Key, DynaMed, BMJ Best Practice and UpToDate. However, use of such tools has not yet been fully embraced in low-resource settings such as Uganda. Objective: This paper intends to collate data on the use and uptake of one such tool, UpToDate, which was provided at no cost to five medical schools in Uganda. Methods: Free access to UpToDate was granted through the IP addresses of five medical schools in Uganda in collaboration with Better Evidence at The Global Health Delivery Project at Harvard and Brigham and Women’s Hospital and Wolters Kluwer Health. Following the donation, medical librarians in the respective institutions conducted training sessions and created awareness of the tool. Usage data was aggregated, based on logins and content views, presented and analyzed using Excel tables and graphs. Results: The data shows similar trends in increased usage over the period of August 2022 to August 2023 across the five medical schools. The most common topics viewed, mode of access (using either the computer or the mobile app), total usage by institution, ratio of uses to eligible users by institution and ratio of uses to students by institution are shared. Conclusion: The study revealed that the tool was used by various user categories across the institutions with similar steady improved usage over the year. These results can inform the librarians as they encourage their respective institutions to continue using the tool to support uptake of point-of-care tools in clinical practice. 展开更多
关键词 UpToDate Clinical Decision support tool Medical Schools Uganda Digital Health Medical Education Evidence-Based Medicine
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Increasing Yields and Partial Factor Productivity of Rice Grown in Tropical Alfisols Using a Decision Support Tool
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作者 Tharindu Nuwan KULASINGHE Udaya W.A.VITHARANA +4 位作者 Darshani KUMARAGAMAGE Randombage Saman DHARMAKEERTHI Kaushik MAJUMDAR Dinaratne Nihal SIRISENA Upul Kumari RATHNAYAKE 《Rice science》 2025年第4期453-456,I0018-I0022,共9页
Decision Support Tool(DST)enables farmers to make site-specific crop management decisions;however,comprehensive calibration can be both costly and time-consuming.This study assessed the production and economic benefit... Decision Support Tool(DST)enables farmers to make site-specific crop management decisions;however,comprehensive calibration can be both costly and time-consuming.This study assessed the production and economic benefits of two calibrations of the Nutrient Expert(NE)tool for rice in Sri Lanka’s Alfisols:the basic calibration(Nutrient Expert Sri Lanka 1,NESL1)and the comprehensive calibration(Nutrient Expert Sri Lanka 2,NESL2).NESL1 was developed by adapting the South Indian version of NE to local conditions,while NESL2 was an updated version,using three years of data from 71 farmer fields. 展开更多
关键词 decision support tool tropical alfisols adapting south indian version ne nutrient expert yield decision support tool dst enables partial factor productivity RICE
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Computer System Reliability Allocation Method and Supporting Tool 被引量:1
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作者 Ben Ke\|rong 1, Yan Jiong 2, Wang Ji 2 1 Department of Computer Science, Naval University of Engineering, Wuhan 430033, China Software Engineering Key Lab.,Wuhan University,Wuhan 430072, China 2 Department of Computer Science, National Universit 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期505-510,共6页
This paper presents a computer system reliability allocation method that is based on the theory of statistic and Markovian chain,which can be used to allocate reliability to subsystem, to hybrid system and software mo... This paper presents a computer system reliability allocation method that is based on the theory of statistic and Markovian chain,which can be used to allocate reliability to subsystem, to hybrid system and software modules. A relevant supporting tool built by us is introduced. 展开更多
关键词 software Reliability reliability allocation method supporting tool
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A Components Library System Model and the Support Tool
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作者 MIAOHuai-kou LIUHui LIUJing LIXiao-bo 《Wuhan University Journal of Natural Sciences》 EI CAS 2004年第5期722-730,共9页
Component-based development needs a well-designed components library and a set of support tools. This paper prasents the design and implementation of a components library system model and its support tool UMLCASE, A s... Component-based development needs a well-designed components library and a set of support tools. This paper prasents the design and implementation of a components library system model and its support tool UMLCASE, A set of practical CASE tools is constructed. UMLCASE can use UML to design Use Case Diagram, Class Diagram etc. And it integrates with components library system. Key words component technology - components library - support tool for components library CLC number TP 311. 52 - TP 311 Foundation item: Supported by the National Natural Science Fundation of China (60373072) and National 973 Program (2002CB312001)Biography: MIAO Huai-kou (1953-), male. Professor, research direction: formal methods, software engineering and automatic reasoning. 展开更多
关键词 component technology components library support tool for components library
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Analysis and Improvement of Standing-Up Action for Elderly People from a Chair Using a Cushion-Type Support Tool
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作者 Masakazu Takahashi Reiji Nanba 《Computer Technology and Application》 2012年第11期713-722,共10页
This paper reports the problems that elderly people have when they stand up from a chair, and proposes an adequate standing-up procedure that solves these problems. The important points for an adequate standing-up pro... This paper reports the problems that elderly people have when they stand up from a chair, and proposes an adequate standing-up procedure that solves these problems. The important points for an adequate standing-up procedure are "leaning the upper body forward" and "pulling the legs to the side". Furthermore, this paper proposes a standing-up support tool. The characteristics of the support tool are a cushion-type shape with an adjustable flange and an air-pressure-driven mechanism. When the proposed standing-up procedure and support tool are applied to elderly people, the measured values related to standing-up, such as maximum acceleration, arm force, standing-up time, heel position and forward-bending angle, are improved. Furthermore, elderly people felt that it made the standing-up action easy. We could confirm the effectiveness of the proposed standing-up procedure and support tool. 展开更多
关键词 Elderly people standing-up procedure standing-up support tool cushion-type shape air-pressure-driven mechanism.
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An Implementation of a Decision Support Tool to Assess Treatment of Emerging Contaminants in India
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作者 Zara Visanji Seyed M. K. Sadr Fayyaz A. Memon 《Journal of Water Resource and Protection》 2018年第4期422-440,共19页
Emerging contaminants have been increasingly studied over the past decade to improve the understanding of their fate, occurrence and toxicological effects on the environment and human health. Originally wastewater tre... Emerging contaminants have been increasingly studied over the past decade to improve the understanding of their fate, occurrence and toxicological effects on the environment and human health. Originally wastewater treatment plants were not designed to remove these pollutants of emerging concern. However, research is now focusing on determining which existing treatment unit processes are suited to their removal. This research sets out to determine suitable treatment options for thirty nine emerging contaminants including various Pharmaceuticals and Personal Care products. The treatment options used in this study are taken from a developed decision support tool (WiSDOM) which formulates wastewater trains/packages for treatment of wastewater in India. The tool also evaluates the performance of each optimal solution in terms of removal of conventional pollutants (such as biochemical oxygen demand, chemical oxygen demand, total nitrogen, total phosphorous, faecal coliform etc.), using multi-objective genetic algorithms and multi-criteria decision analysis. An Excel Spreadsheet Program (ESP) was developed as an add-on to the tool, allowing the ESP to take an initial concentration of any of the thirty nine emerging contaminant and pass it through the treatment trains (generated/selected by the WiSDOM tool) to determine the removal efficiency. Three scenarios were developed to analyse the removal of emerging contaminants in India. The scenarios were designed to capture the influence of different socio-economic contexts and wastewater characteristics on the treatment technology selection. The tool generated results suggest that the use of constructed wetlands can remove a large proportion of emerging contaminants, resulting in low energy requirements and operational costs and wildlife habitats. However, the land requirement for this process is not always suited to urban areas in India. Advanced oxidation processes were also efficient at removing emerging contaminants. However, the energy requirements for this process were high. Emerging contaminants have different physical and chemical properties;therefore, future evaluations of each chemical should be monitored separately to generate suitable technologies suited to optimal removal. 展开更多
关键词 EMERGING CONTAMINANTS DECISION support tool Pharmaceuticals PERSONAL CARE Products
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A framework for the use of decision-support tools at various spatial scales for the management of irrigated agriculture in West-Africa
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作者 Joost Wellens Farid Traoré +1 位作者 Mamadou Diallo Bernard Tychon 《Agricultural Sciences》 2013年第8期9-15,共7页
The Kou watershed, situated in the Southwestern part of Burkina Faso, has succumbed since a couple of decades in a typical theater play of anarchistic water management. With its 1800 km2, this small watershed holds th... The Kou watershed, situated in the Southwestern part of Burkina Faso, has succumbed since a couple of decades in a typical theater play of anarchistic water management. With its 1800 km2, this small watershed holds the second largest city of Burkina Faso (Bobo-Dioulasso), a former State ran irrigated rice scheme and several informal agricultural zones. Despite the abundance on water resources, most water users find themselves regularly facing to water shortages due to an increase in population and low irrigation efficiencies. Local stakeholders are hence in need of easy-to-use and low-cost decision support tools for the monitoring and exploitation of the water resources at different spatial and user levels. A top-to-bottom string of adapted water management tools has been successfully installed to tackle the problems: from watershed (top) to field level (bottom), passing by the 1200 ha irrigation scheme. Land use maps have been derived from time-series of free satellite images. Combined with data from a network of hydrologic gauging stations, regional water use maps were established. SIMIS was put in place for the public-private management of the regions irrigated rice scheme. Day to day water use on irrigated plots was followed by soil humidity and crop canopy measurements. A simple field-cropwater balance model Aqua Crop was used by extension workers to draft optimal irrigation charts. Each tool was applied independently, requiring only limited data;but their combined results contributed to an improved integrated water management. 展开更多
关键词 IRRIGATION REMOTE Sensing MULTI-LEVEL DECISION-support tool
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我国托育服务人才队伍建设的政策选择与未来进路——基于政策工具视角 被引量:2
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作者 洪秀敏 宋秋菊 朱文婷 《现代教育管理》 北大核心 2025年第1期44-56,共13页
高质量普惠托育服务的发展离不开高素质的托育服务人才队伍建设。基于“政策工具—建设要素”的二维分析框架,发现在政策工具维度上,当前我国托育服务人才队伍能力建设型工具使用最多,命令型工具次之,激励型工具和系统变革型工具较为缺... 高质量普惠托育服务的发展离不开高素质的托育服务人才队伍建设。基于“政策工具—建设要素”的二维分析框架,发现在政策工具维度上,当前我国托育服务人才队伍能力建设型工具使用最多,命令型工具次之,激励型工具和系统变革型工具较为缺乏;建设要素维度呈现类别化的特点,托育服务人才队伍建设政策体系初步形成。与此同时,托育服务人才队伍建设面临政策偏失转向有效均衡、基本规范转向内涵建设、差异管理转向精准服务的挑战。为进一步加强我国托育服务人才队伍建设,需要坚持动态平衡的系统思维,丰富并优化各类政策工具的使用;完善“发展保障”类建设要素,推动人才高质量可持续发展;增强政策工具与建设要素的适切性,建立健全人才政策保障体系。 展开更多
关键词 托育服务 托育服务人才队伍 政策工具 生育支持 权益保障
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土地制度综合配套改革对城乡收入差距的影响 被引量:4
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作者 丰雷 李聪 《中国土地科学》 北大核心 2025年第1期50-59,共10页
研究目的:考察土地制度综合配套改革对缩小城乡收入差距的政策效果,为实现更加公平合理的土地收益分配提出政策建议。研究方法:理论建模、固定效应模型。研究结果:(1)土地制度综合配套改革对缩小城乡收入差距具有显著影响,土地制度综合... 研究目的:考察土地制度综合配套改革对缩小城乡收入差距的政策效果,为实现更加公平合理的土地收益分配提出政策建议。研究方法:理论建模、固定效应模型。研究结果:(1)土地制度综合配套改革对缩小城乡收入差距具有显著影响,土地制度综合改革的政策配套度越高,越有利于城乡收入差距的缩小。(2)土地制度综合配套改革主要包括政策主体配套以及政策工具配套两种形式,这两种形式的配套度提高,都能显著缩小城乡收入差距。(3)土地制度综合配套改革的政策效应具有区域异质性,对东、中部地区城乡收入差距的缩小效应比西部地区更大。研究结论:进一步完善政策主体配套以及政策工具配套,整合土地、劳动力、社保以及资金等要素配套,有助于促进土地增值收益的全民共享,缩小城乡收入分配差距。 展开更多
关键词 土地制度综合配套改革 政策主体配套 政策工具配套 城乡收入差距 固定效应模型
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城市绿地文娱服务供需评估模型开发与应用
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作者 刘红晓 庞钰巾 +3 位作者 陈玉玲 刘可 罗乐 隋春花 《生态学报》 北大核心 2025年第20期9868-9880,共13页
城市绿地的文娱服务是文化服务的重要组成部分,对维持居民身心健康与福祉提升具有重要意义。然而,目前将绿地文娱服务融入规划决策依然有待推进。生态系统服务模型为土地利用规划中生态系统服务保护和提升提供了决策支持工具。然而,相... 城市绿地的文娱服务是文化服务的重要组成部分,对维持居民身心健康与福祉提升具有重要意义。然而,目前将绿地文娱服务融入规划决策依然有待推进。生态系统服务模型为土地利用规划中生态系统服务保护和提升提供了决策支持工具。然而,相比于调节服务,城市绿地文娱服务评估模型鲜有报道。构建了一个城市绿地文娱服务供需评估模型,该模型包含默认模型、分绿地类型拓展模型和分人口类型拓展模型3个子模型。默认模型可基于广泛易获得的数据计算不同尺度(栅格尺度、行政单元尺度)绿地的文娱服务供需平衡;分绿地类型和分人口类型的拓展模型可以结合调查问卷数据和环境经济学方法,计算不同绿地类型文娱服务供需和不同人群绿地文娱服务供需。模型数据需求灵活、与绿地规划相关政策衔接性好、操作简单并具有可视化功能。另外,本模型能与环境经济学方法结合,为准确评估文娱服务提供了新思路,有助于促进文娱服务应用到城市绿地规划中。通过广州和巴黎2个案例展示了本模型在不同城市的适用性和促进文娱服务融入绿地系统规划中的作用。结果表明,由于绿地多分布于人口稀少的地区,广州、巴黎都有大量人口处于文娱服务赤字;老年人等弱势群体可能面临更广泛的赤字,在绿地规划中需要充分考虑人群对绿地的偏好。 展开更多
关键词 绿地供给 城市生态智慧管理系统(IUEMS) 决策支持工具 生态系统文娱服务 两步移动模型
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育龄期女性癌症患者生育力保护决策辅助工具的编制与应用 被引量:1
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作者 袁甜 刘丽华 何育兰 《中国护理管理》 北大核心 2025年第2期208-213,共6页
目的:构建育龄期女性癌症患者生育力保护决策辅助工具并评价其应用效果,以期为育龄期女性癌症患者生育力保护提供临床指导。方法:通过文献分析、质性访谈及专家函询法构建决策辅助工具。采用方便抽样方法,于2023年11月至2024年1月选取... 目的:构建育龄期女性癌症患者生育力保护决策辅助工具并评价其应用效果,以期为育龄期女性癌症患者生育力保护提供临床指导。方法:通过文献分析、质性访谈及专家函询法构建决策辅助工具。采用方便抽样方法,于2023年11月至2024年1月选取湖南省某三级甲等医院肿瘤科的50名育龄期女性癌症患者为研究对象,采用随机数字表法随机分为对照组和干预组各25例。对照组采用常规的生育保护支持和决策过程,干预组使用育龄期女性癌症患者生育力保护决策辅助工具。比较两组患者决策冲突量表得分等,以及干预组患者对工具的接受度和使用评价。结果:干预后,干预组患者生育力保护知识问卷得分、自我决策效能得分高于对照组,决策冲突量表得分低于对照组,差异均具有统计学意义(P<0.05);干预组患者的用户接受度得分为(16.84±1.49)分,对决策辅助工具的接受度较高。结论:患者对育龄期女性癌症患者生育力保护决策辅助工具接受度较高,应用决策辅助工具可有效提升患者生育力保护知识以及决策自我效能水平,减少患者决策困境。 展开更多
关键词 决策辅助工具 育龄期女性 癌症 生育力保护
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基于多传感器融合的不同纤维方向下CFRP铣削刀具磨损监测研究 被引量:1
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作者 贺继宏 陈燕 +1 位作者 王晓宇 胡良涛 《工具技术》 北大核心 2025年第9期13-22,共10页
为提高CFRP加工过程中刀具磨损监测精度,考虑纤维方向对刀具磨损的影响,提出基于多传感器信号融合的刀具磨损监测方法。通过开展0°,45°,90°和135°不同纤维方向的CFRP刀具磨损侧铣试验,采集加工过程中的切削力信号... 为提高CFRP加工过程中刀具磨损监测精度,考虑纤维方向对刀具磨损的影响,提出基于多传感器信号融合的刀具磨损监测方法。通过开展0°,45°,90°和135°不同纤维方向的CFRP刀具磨损侧铣试验,采集加工过程中的切削力信号、振动信号和声发射信号进行时频域分析提取特征,探讨各信号特征量、纤维方向与刀具磨损之间的联系。融合多传感器特征,由优化后的支持向量回归模型对各纤维方向CFRP铣削过程中的刀具磨损进行预测。试验结果表明,不同纤维方向下的刀具磨损状态明显不同,90°和45°纤维方向下的刀具磨损较为严重。同时,不同纤维方向下的信号特征变化趋势也存在差异性,选取各纤维方向敏感特征进行特征融合作为预测模型输入,支持向量回归监测模型的平均绝对误差最大值仅为0.0172,与单一传感器相比,多源融合支持向量回归模型预测精度均达97%以上,相比CNN、RF、BPNN算法模型模型,准确率最大提高12.3%,具备较强的可适用性。 展开更多
关键词 纤维方向 刀具磨损监测 特征融合 铣削 支持向量回归
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衰弱老年人社会参与研究进展 被引量:2
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作者 雷健克 刘艳飞 +3 位作者 陈星运 宋辛颖 李鑫鑫 张伟宏 《护理学杂志》 北大核心 2025年第1期124-128,共5页
主要对老年人社会参与的概念、衰弱老年人社会参与测评工具、现状及影响因素进行综述,提出改善衰弱老年人社会参与的措施,旨在为改善衰弱老年人社会参与提供参考。
关键词 老年人 衰弱 社会参与 社会支持 互联网 测评工具 影响因素 综述文献
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基于云平台的高可靠性电力信息系统的设计 被引量:1
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作者 齐春平 《信息与电脑》 2025年第2期43-45,共3页
电力信息系统是电力生产中的关键支撑,其脆弱性已成为各电力企业关注的重点。随着越来越多的企业业务向数字化和云化转型,确保信息系统的业务连续性是业界需重点研究的问题。文章针对主流云平台组件,首先介绍了信息系统的容灾建设和业... 电力信息系统是电力生产中的关键支撑,其脆弱性已成为各电力企业关注的重点。随着越来越多的企业业务向数字化和云化转型,确保信息系统的业务连续性是业界需重点研究的问题。文章针对主流云平台组件,首先介绍了信息系统的容灾建设和业务连续性,其次设计了云环境下高可靠性系统,最后描述了应急管理和工具支撑。 展开更多
关键词 云平台 电力信息系统 高可靠性系统 应急管理 工具支撑
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决策辅助工具在2型糖尿病病人血糖管理中的应用进展
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作者 刘佳 周常春 张雪 《循证护理》 2025年第22期4634-4638,共5页
对糖尿病决策辅助工具的概念、类型、特点和应用效果等进行综述,旨在为我国开展糖尿病相关决策辅助工具的研究提供参考依据。
关键词 糖尿病 决策辅助工具 共享决策 血糖管理 综述 护理
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老年人双向社会支持的研究进展 被引量:1
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作者 曾亚玲 曹梅娟 +3 位作者 凌喆懿 吴海璐 王亚婷 陈琦 《全科护理》 2025年第4期636-639,共4页
综述老年人双向社会支持的概念与分类、测评工具以及影响因素等,提出双向社会支持正向促进老年人的身心健康,提出应发展适合我国老年人双向社会支持的概念及内涵、测评工具和干预策略,提升老年人双向社会支持水平。
关键词 双向社会支持 老年人 测评工具 影响因素 综述
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政策工具视角下我国的生育支持政策的多维审视——以党的十八大以来的政策为中心 被引量:1
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作者 张凯淇 徐硕 王延隆 《中国卫生事业管理》 北大核心 2025年第2期177-181,216,共6页
目的:通过对党的十八大以来的生育支持政策文本进行政策工具分析,为生育支持政策的优化提供参考,推动生育支持政策配套衔接,完善生育支持政策体系。方法:采用政策文本分析方法,通过借助政策工具理论,构建政策工具-政策风格二维分析框架... 目的:通过对党的十八大以来的生育支持政策文本进行政策工具分析,为生育支持政策的优化提供参考,推动生育支持政策配套衔接,完善生育支持政策体系。方法:采用政策文本分析方法,通过借助政策工具理论,构建政策工具-政策风格二维分析框架,对党的十八大以来的19份生育支持政策展开分析。结果:生育支持政策的发布共涉及27个部门,多是党中央、国务院领导统领,各部门主题相互协同。其中环境型政策工具应用占比最高,为58.4%。三种政策风格相对协调,各占30%左右。结论:我国生育支持政策制定以中共中央、国务院为引领,多部门协同联动,引导激励较为充分。但存在政策工具应用比例及其内部工具使用失衡、需求型政策工具不足、政策体系不完善等问题。应加大需求型政策工具供给,完善激励型政策工具的使用,构建完备的生育支持政策体系,健全多元主体服务供给,推动政策配套衔接,进一步完善生育支持政策体系。 展开更多
关键词 生育 生育支持政策 政策工具 生育友好型社会
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围绝经期症状管理非药物治疗决策辅助工具的构建与评价研究
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作者 牛旭蕾 郭晓琴 +2 位作者 郭雪桃 王倩倩 田昱敏 《中华护理教育》 2025年第10期1265-1272,共8页
目的构建围绝经期症状管理非药物决策辅助工具,为围绝经期症状管理及医患共同决策提供参考。方法以渥太华决策支持框架为理论依据,以中国患者决策辅助工具开发流程与方法为指导,经文献回顾、网状Meta分析及证据总结形成供医护人员使用... 目的构建围绝经期症状管理非药物决策辅助工具,为围绝经期症状管理及医患共同决策提供参考。方法以渥太华决策支持框架为理论依据,以中国患者决策辅助工具开发流程与方法为指导,经文献回顾、网状Meta分析及证据总结形成供医护人员使用的决策辅助工作表和面向围绝经期女性的决策辅助手册。通过2轮德尔菲法对决策辅助工作表进行评价、修订;经专家会议确定手册内容及形式;经外部评审评价工具的可用性与可接受性。选取20名女性进行试点应用,采用访谈法评估工具的可读性和可行性,修订形成终版工具。结果2轮专家函询的专家积极系数分别为85%和100%,权威系数均为0.888,专家协调系数分别为0.296和0.384(P<0.05)。专家会议的权威系数为0.865。外部评审表明,工具质量较高,符合应用条件。试点应用中,95%的女性认为工具信息易懂,具备良好的可读性和可行性。形成决策辅助工作表(4个一级项目、13个二级项目、59个三级项目)和64页决策辅助手册(包括更年期症状管理非药物决策一览表、更年期知识、症状评估、生活方式调整、非药物疗法、附录)。结论该工具具有科学性和适用性,将最佳证据和女性价值偏好相结合,可为围绝经期症状管理决策提供参考。 展开更多
关键词 围绝经期 症状管理 非药物 决策辅助工具 护理
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基于切削力的机床主轴轴向热误差建模新方法
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作者 汤滨瑞 王四宝 +2 位作者 王浩 黄强 赵增亚 《计算机集成制造系统》 北大核心 2025年第2期544-553,共10页
为解决现有热误差建模方法依靠经验选择温度测量点,导致模型稳健性差等问题,提出一种基于切削力的机床主轴轴向热误差建模新方法。研究数控机床主轴轴向热误差对未变形切屑形貌的影响机制,建立考虑机床主轴轴向热误差的切削力模型,揭示... 为解决现有热误差建模方法依靠经验选择温度测量点,导致模型稳健性差等问题,提出一种基于切削力的机床主轴轴向热误差建模新方法。研究数控机床主轴轴向热误差对未变形切屑形貌的影响机制,建立考虑机床主轴轴向热误差的切削力模型,揭示相同切削工艺参数下的热误差致切削力演变规律;分析机床主轴轴向热误差与切削力的关联关系,利用支持向量回归建立基于切削力的机床主轴轴向热误差模型。与传统热误差模型相比,基于切削力的热误差建模方法不需要大量的温度传感器和复杂的温度敏感点确定过程,而且不用考虑温度敏感点动态变化对模型稳健性的影响。通过不同环境和工况下的实验证明,模型预测精度达到90%以上,具有较强的预测能力与泛化能力,为机床轴向热误差在线辨识提供了新方法,同时为机床在线误差补偿以及在智能制造过程中提升零件质量提供了技术基础。 展开更多
关键词 热误差建模 切削力 支持向量回归 数控机床
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