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针对患者利益的机器学习和人工智能研究:在透明性、可重复性、伦理和有效性等方面的20个关键问题

英国医学杂志中文版 2020年第9期23卷 522-533页

作者： Sebastian Vollmer Bilal A Mateen Gergo Bohner Franz J Kirdly Rayid Ghani Pall Jonsson Sarah Cumbers Adrian Jonas Katherine S L McAllister Puja Myles David Granger Mark Birse richard branson Karel G M Moons Gary S Collins John P A Chris Holmes Harry Hemingwayp 李峰(译) 徐磊(校) 赵邑(校) Alan Turing Institute Kings CrossLondonUK Departments of Mathematics and Statistics University of WarwickCoventryUK Warwick Medical School University of WarwickCoventryUK Kings College Hospital Denmark HillLondonUK Department of Statistical Science University College LondonLondonUK University of Chicago ChicagoILUSA Science Policy and Research National Institute for Health and Care ExcellenceManchesterUK Health and Social Care Directorate National Institute for Health and Care ExcellenceLondonUK Data and Analytics Group National Institute for Health and Care ExcellenceLondonUK Clinical Practice Research Datalink Medicines and Healthcare products Regulatory AgencyLondonUK Medicines and Healthcare products Regulatory Agency LondonUK Julius Centre for Health Sciences and Primary Care UMC UtrechtUtrecht UniversityUtrechtNetherlands UK EQUATOR Centre Centre for Statistics in MedicineNDORMSUniversity of OxfordOxfordUK Meta-Research Innovation Centre at Stanford Stanford UniversityStanfordCAUSA Department of Statistics University of OxfordOxford 0X13LBUK Health Data Research UK London University College LondonLondon.UK Institute of Health Informatics University College LondonLondonUK National Institute for Health Research University College London Hospitals Biomedical Research CentreUniversity College LondonLondonUK 深圳智影医疗公司首都医科大学附属北京安贞医院清华大学附属北京清华长庚医院皮肤科

机器学习(ML)、人工智能(AI)和其他现代统计方法正为利用先前尚未开发且极速增长的数据资源提供新的机会,以期让患者获益。尽管目前正在进行许多有前景的研究,特别是在图像方面,但就文献整体而言还缺乏透明度、对可重复性清晰的阐述、... 详细信息

机器学习(ML)、人工智能(AI)和其他现代统计方法正为利用先前尚未开发且极速增长的数据资源提供新的机会,以期让患者获益。尽管目前正在进行许多有前景的研究,特别是在图像方面,但就文献整体而言还缺乏透明度、对可重复性清晰的阐述、对潜在伦理问题的探究,以及对有效性的明确验证。这些问题的存在有许多原因,其中最重要的一点(为此我们提供了初步解决方案)就是当前缺乏针对ML和AI的最佳实践指南。我们认为从事研究的跨学科团队和应用ML/AI影响健康的项目,将因解决有关透明度、可重复性、伦理和有效性(TREE)的一系列问题而受益。这里提出的20个关键问题为研究团队提供了一个研究设计、实施和报告框架;帮助编辑和同行评审专家评估文献的贡献;让患者、临床医生和政策制定者评估新发现可能会给患者带来的获益。

关键词：人工智能研究机器学习同行评审数据资源缺乏透明度可重复性透明性跨学科团队

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混凝土自复位墙结构地震全过程损伤分析

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建筑结构学报 2024年第2期45卷 189-204页

作者：鲁懿虬 HENRY richard S 周颖 RODGERS Geoffrey W 杨群顾安琪同济大学土木工程学院上海200092 奥克兰大学土木与环境系新西兰奥克兰1010 坎特伯雷大学土木与自然资源工程系新西兰基督城8140

后张法预应力混凝土自复位墙是一种有效的可恢复功能结构。虽然自复位墙自身在地震中损伤较小,但其与周边构件的变形不协调可使结构损伤严重。为控制结构层面的损伤,设计了1个框架-自复位墙结构,对自复位墙底、梁柱节点、墙梁节点、墙-... 详细信息

后张法预应力混凝土自复位墙是一种有效的可恢复功能结构。虽然自复位墙自身在地震中损伤较小,但其与周边构件的变形不协调可使结构损伤严重。为控制结构层面的损伤,设计了1个框架-自复位墙结构,对自复位墙底、梁柱节点、墙梁节点、墙-基础连接、柱-基础连接以及墙-板连接开展损伤控制设计,并对设计的结构进行足尺振动台试验。结构共经历了39次不同设计工况下不同烈度的地震激励,峰值加速度最大达1.0g,位移角最大达3.3%。对结构在历次地震作用下整体、局部构件和节点的损伤发展进行全过程定量分析,结果表明:自复位墙-开槽梁结构在地震作用下的损伤能够得到有效控制,其中多遇、设防地震作用下结构基本无损伤,罕遇地震作用下墙底损伤仅限角部剥落且面积仅为400 cm2,楼板有开裂且裂缝最大仅为1.2 mm,梁端剥落可忽略;自复位墙-开槽梁结构可使整个结构在不同设计位移角下实现多遇、设防地震不坏,罕遇地震小修甚至不修的抗震性能目标;设计的连接方式解决了结构中构件之间的变形不协调问题,提高了自复位墙结构层面的可修复性。

关键词：自复位墙开槽梁墙板连接振动台试验结构损伤

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避免创业犯错四步曲

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中关村 2012年第4期 63-63页

作者：理查德.布兰森维珍(Virgin)集团

经常有人问我，创业者在创业之初最常犯的错误是什么？“犯错”是创业过程的必经之路，最重要的是要从错误中吸取教训，跌倒之后马上爬起来。创业过程中人们总难免犯错，因此创业者必须付诸全部毅力、动力以及决心。但是创业的道路并非... 详细信息

经常有人问我，创业者在创业之初最常犯的错误是什么？“犯错”是创业过程的必经之路，最重要的是要从错误中吸取教训，跌倒之后马上爬起来。创业过程中人们总难免犯错，因此创业者必须付诸全部毅力、动力以及决心。但是创业的道路并非总是不确定。当发掘到其他人尚未发掘到的机会时，你可以按照一定的步骤将你的构想变为现实。你必须要制订一份创新的商业计划书、寻找资金、招募合适的人员来实施这个计划．并且在恰当的时机退居幕后。

关键词：创业者创业过程商业计划书发掘资金

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Surgical management of the diabetic foot:The current evidence

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World Journal of Orthopedics 2024年第5期15卷 404-417页

作者： richard Henry Randall Roberts Gareth Rhys Davies-Jones James Brock Vaishnav Satheesh Greg AJ Robertson Department of Trauma and Orthopaedics Wrexham Maelor HospitalWrexham LL137TDUnited Kingdom Department of Trauma and Orthopaedics The Robert Jones and Agnes Hunt Orthopaedic HospitalOswestry SY107AGUnited Kingdom

The prevalence of diabetes mellitus and its associated complications,particularly diabetic foot pathologies,poses significant healthcare challenges and economic burdens *** review synthesises current evidence on the surgical management of the diabetic foot,focusing on the interplay between neuropathy,ischemia,and infection that commonly culminates in ulcers,infections,and,in severe cases,*** escalating incidence of diabetes mellitus underscores the urgency for effective management strategies,as diabetic foot complications are a leading cause of hospital admissions among diabetic patients,significantly impacting morbidity and mortality *** review explores the pathophysiological mechanisms underlying diabetic foot complications and further examines diabetic foot ulcers,infections,and skeletal pathologies such as Charcot arthropathy,emphasising the critical role of early diagnosis,comprehensive management strategies,and interdisciplinary care in mitigating adverse *** addressing surgical interventions,this review evaluates conservative surgeries,amputations,and reconstructive procedures,highlighting the importance of tailored approaches based on individual patient profiles and the specific characteristics of foot *** integration of advanced diagnostic tools,novel surgical techniques,and postoperative care,including offloading and infection control,are discussed in the context of optimising healing and preserving limb function.

关键词： Diabetes Diabetic foot Charcot Osteomyelitis Amputation Diabetic foot attack Conservative surgery

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The association of physical activity duration and intensity on emotional intelligence in 10-13 year-old Children

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Sports Medicine and Health Science 2024年第4期6卷 331-337页

作者： Marie C.Gabour Tongjian You richard Fleming Paul D.McNicholas Philimon N.Gona Department of Health Sciences Regis College235 Wellesley StreetWestonMA02493USA Department of Exercise and Health Sciences University of Massachusetts Boston100 Morrissey BlvdBostonMA02125USA Department of Mathematics&Statistics McMaster UniversityHamiltonOntarioCanada L8S 4L8

Previous studies have shown that Physical Activity(PA)has a positive association with emotional health and intelligence in adolescents but none have focused on the relationship of PA duration and intensity on Emotional Intelligence(EI).The purpose of this study was to cross-sectionally assess the association of PA measures on overall EI and its domains in a cohort of 2029 adolescents aged 10-13 years of age in the National Longitudinal Survey for Children and Youth(NLSCY)from *** linear regression analysis of EI was adjusted for age,sex,annual household income,and health ***-way analysis of variance(ANOVA)was used to relate PA duration measured in minutes,frequency,and intensity categories with continuous GEI scores and also the corresponding scores for domains of *** mean GEI scores were(28.3±6.6)for 0-30 minute(min)PA duration,(30.0±6.5)for 30 to<60 min,(30.8±6.7)for 60-120 min,and(30.1±6.5)for≥121 *** was a statistically significant linear trend across PA duration categories,p?***-hoc pairwise comparison revealed that compared to the referent category(<30 min PA category)was statistically significantly lower GEI than each of the other two PA categories(30-59 min;and 60-120 min),both p-values<*** World Health Organization(WHO)guidelines for duration and vigorous intensity were positively associated with the higher overall EI and its domains except for Stress Management.

关键词： Physical activity Duration Intensity Emotional Intelligence Adolescents

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Migration and Spatiotemporal Land Cover Change: A Case of Bosomtwe Lake Basin, Ghana

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Advances in Remote Sensing 2024年第1期13卷 18-40页

作者： richard Kwabena Adams Lingling Zhang Zongzhi Wang School of Public Administration Hohai University Nanjing China National Key Laboratory of Water Disaster Prevention Nanjing Institute of Hydraulic Research Nanjing China

Internal migration is highly valued due to its increasingly acknowledged potential for social and economic development. However, despite its significant contribution to the development of towns and cities, it has led to the deterioration of many ecosystems globally. Lake Bosomtwe, a natural Lake in Ghana and one of the six major meteoritic lakes in the world is affected by land cover changes caused by the rising effects of migration, population expansion, and urbanization, owing to the development of tourist facilities on the lakeshore. This study investigated land cover change trajectories using a post-classification comparison approach and identified the factors influencing alteration in the Lake Bosomtwe Basin. Using Landsat imagery, an integrated approach of remote sensing, geographical information systems (GIS), and statistical analysis was successfully employed to analyze the land cover change of the basin. The findings show that over the 17 years, the basin’s forest cover decreased significantly by 16.02%, indicating that population expansion significantly affects changes in land cover. Ultimately, this study will raise the awareness of stakeholders, decision-makers, policy-makers, government, and non-governmental agencies to evaluate land use development patterns, optimize land use structures, and provide a reference for the formulation of sustainable development policies to promote the sustainable development of the ecological environment.

关键词： Land Cover Change Supervised Classification Migration Landsat Imagery Environmental Sustainability

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基因组结构变异研究的前瞻性及临床应用

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Science Bulletin 2024年第6期69卷 705-708页

作者：陈仲中 richard H.Finnell 雷云平王红艳 Obstetrics and Gynecology Hospital State Key Laboratory of Genetic EngineeringInstitute of Reproduction and DevelopmentFudan UniversityShanghai 200011China Shanghai Children’s Hospital School of MedicineShanghai Jiao Tong UniversityShanghai 200062China Center for Precision Environmental Health Department of Molecular and Cellular BiologyBaylor College of MedicineHouston 77030USA Departments of Molecular and Human Genetics and Medicine Baylor College of MedicineOne Baylor PlazaHouston 77030USA Shanghai Key Laboratory of Metabolic Remodelling and Health Institute of Metabolism and Integrative BiologyFudan UniversityShanghai 200438China Children’s Hospital of Fudan University Shanghai 201102China

The challenges and breakthroughs in human genetics can largely depend on the depth of exploring the missing heritability[1]and understanding of genetic variants,which enabled scientists to better elucidate the underlying causes of diseases and apply this knowledge in clinical *** genomes differ from one individual to another in the form of single nucleotide variants(SNVs),small insertions and deletions(indels)(<50 base pairs(bp)),and structural variants(SVs)[2].

关键词： diseases breakthrough insertion

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Distortions in focusing laser pulses due to spatio-temporal couplings:an analytic description

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High Power Laser Science and Engineering 2024年第3期12卷 20-40页

作者： Klaus Steiniger Fabia Dietrich Daniel Albach Michael Bussmann Arie Irman Markus Loeser richard Pausch Thomas Püschel Roland Sauerbrey Susanne Schöbel Ulrich Schramm Mathias Siebold Karl Zeil Alexander Debus Helmholtz-Zentrum Dresden-Rossendorf DresdenGermany CASUS-Center for Advanced Systems Understanding GörlitzGermany Technische Universität Dresden DresdenGermany

In ultra-short laser pulses,small changes in dispersion properties before the final focusing mirror can lead to severe pulse distortions around the focus and therefore to very different pulse properties at the point of laser±matter interaction,yielding unexpected interaction *** mapping between far-and near-field laser properties intricately depends on the spatial and angular dispersion properties as well as the focal *** a focused Gaussian laser pulse under the influence of angular,spatial and group-delay dispersion,we derive analytical expressions for its pulse-front tilt,duration and width from a fully analytic expression for its electric field in the time±space domain obtained with scalar diffraction *** expression is not only valid in and near the focus but also along the entire propagation distance from the focusing mirror to the *** relating angular,spatial and group-delay dispersion before focusing at an off-axis parabola,where they are well measurable,to the respective values in the pulse’s focus are obtained by a ray tracing ***,these formulas are used to show in example setups that the pulse-front tilts of lasers with small initial dispersion can become several tens of degrees larger in the vicinity of the focus while being small directly in the *** formulas derived here provide the analytical foundation for observations previously made in numerical *** numerically simulating Gaussian pulse propagation and measuring properties of the pulse at distances several Rayleigh lengths off the focus,we verify the analytic expressions.

关键词： group-delay dispersion pulse-front tilt spatio-temporal couplings third-order dispersion ultra-short laser pulses

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Beyond cotton and polyester: An evaluation of emerging feedstocks and conversion methods for the future of fashion industry

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Journal of Bioresources and Bioproducts 2024年第2期9卷 130-159页

作者： Ryen M.Frazier Keren A.Vivas Ivana Azuaje Ramon Vera Alonzo Pifano Naycari Forfora Hasan Jameel Ericka Ford Joel J.Pawlak richard Venditti Ronalds Gonzalez Department of Forest Biomaterials North Carolina State UniversityRaleighNC 27695USA Department of Textile Engineering Chemistry and ScienceThe Nonwovens InstituteNorth Carolina State UniversityRaleighNC 27695USA

As the global population grows,the demand for textiles is increasing ***,this puts immense pressure on manufacturers to produce more *** synthetic fibers can be pro-duced cheaply,they have a negative impact on the *** the other hand,fibers from wool,sisal,fique,wood pulp(viscose),and man-made cellulose fibers(MMCFs)from cotton can-not alone meet the growing fiber demand without major stresses on land,water,and existing markets using these *** a greater emphasis on transparency and circular economy practices,there is a need to consider natural non-wood alternative sources for MMCFs to supple-ment other fiber ***,introducing new feedstocks with different compositions may require different biomass conversion ***,based on existing work,this review ad-dresses the technical feasibility of various alternative feedstocks for conversion to textile-grade ***,alternative feedstocks are introduced,and then conventional(dissolving pulp)and emerging(fibrillated cellulose and recycled material)conversion technologies are evaluated to help select the most suitable and promising processes for these emerging alternative sources of *** is important to note that for alternative feedstocks to be adopted on a meaningful scale,high biomass availability and proximity of conversion facilities are critical *** North America,soybean,wheat,rice,sorghum,and sugarcane residues are widely available and most suitable for conventional conversion through various dissolving pulp production methods(pre-hydrolysis kraft,acid sulfite,soda,SO2-ethanol-water,and potassium hydroxide)or by emerging cellulose fibrillation *** dissolving pulp conversion is well-established,fibrillated cel-lulose methods could be beneficial from cost,efficiency,and environmental ***,the authors strongly encourage more work in this growing research ***,conducting thorough cost and sustainability assessment

关键词： Non-wood Residue Regenerated cellulose Dissolving pulp Man-made cellulose fiber Apparel textile

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Full Dynamic Model for Liquid Sloshing Simulation in Cylindrical Tank Shape

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World Journal of Mechanics 2024年第4期14卷 55-72页

作者： Omar Noui Mohamed Bouazara Marc J. richard Department of Applied Science University of Quebec at Chicoutimi Chicoutimi Canada Department of Mechanical Engineering Laval University Quebec Canada

This study presents a comprehensive full dynamic model designed for simulating liquid sloshing behavior within cylindrical tank structures. The model employs a discretization approach, representing the liquid as a network of interconnected spring-damper-mass systems. Key aspects include the adaptation of liquid discretization techniques to cylindrical lateral cross-sections and the calculation of stiffness and damping coefficients. External forces, simulating various vehicle maneuvers, are also integrated into the model. The resulting system of equations is solved using Maple Software with the Runge-Kutta-Fehlberg method. This model enables accurate prediction of liquid displacement and pressure forces, offering valuable insights for tank design and fluid dynamics applications. Ongoing refinement aims to broaden its applicability across different liquid types and tank geometries.

关键词： Fluid-Structure Interaction Equivalent Mechanical Model Liquid Discretization Spring-Mass Model Spring-Mass Network Liquid Simulation

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