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基于领域知识辅助的机器学习方法对软磁金属玻璃性能的预测

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Transactions of Nonferrous Metals Society of china 2023年第1期33卷 209-219页

作者：李鑫单光存赵鸿滨石燦鴻北京航空航天大学仪器科学与光电工程学院北京100191 香港城市大学材料科学与工程系香港特别行政区有研科技集团有限公司智能传感功能材料国家重点实验室北京100088

提出一种领域知识辅助的机器学习方法,实现对软磁金属玻璃饱和磁化强度(B_(s))和临界尺寸(D_(max))的预测。基于公开的实验数据,建立软磁合金数据库。提出一个通用的特征空间,适用于面向不同预测任务的机器学习模型训练。结果表明,机器... 详细信息

提出一种领域知识辅助的机器学习方法,实现对软磁金属玻璃饱和磁化强度(B_(s))和临界尺寸(D_(max))的预测。基于公开的实验数据,建立软磁合金数据库。提出一个通用的特征空间,适用于面向不同预测任务的机器学习模型训练。结果表明,机器学习模型的预测能力比基于物理知识的估计方法精度更高。此外,领域知识辅助的特征选择可在有效减少特征数量的同时,不显著降低模型的预测精度。最后,对软磁金属玻璃临界尺寸的二分类预测进行讨论。

关键词：金属玻璃软磁性玻璃形成能力机器学习材料描述符

Intratracheally Administered Liposomal α-Tocopherol Protects the Lung against Long-Term Toxic Effects of Paraquat

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Biomedical and Environmental Sciences 1995年第4期8卷 289-300页

作者： Z. E. SUNTRES AND P. N. shek(To whom correspondencc should be addressed at Defence and Civil Institute of Environmental Medicine, 1133 Sheppard Avenue West, North York, Ontario M3M 3B9, Canada.Operational Medicine Division, Defence and Civil Institute of Operational Medicine Division Defence and Civil Institute of Environmental Medecine North York Ontario Canada.

Paraquat is a broad-spectrum herbicide known to produce lung injury via oxidative stress-mediated mechanisms. Different pharmacological strategies have been explored to reduce the formation of these reactive oxygen species and/or prevent their toxic effects in the treatment of paraquat poisoning. The present study was carried out to investigate whether the antioxidant (L-tocopherol, incorporated into liposomes and delivered directly to the lungs of rats, could protect the organ against the long-term toxic effects of *** liposomes (composed of dipalmitoylphosphatidylcholine, DPPC) or α-tocopherol liposomes (8 mg α-tocopherol/kg body weight) were administered intratracheally to animals 24 h prior to an intraperitoneal injection of paraquat dichloride (20 mg/kg) and rats wefe killed 0, 1, 4, 6, 8, 10, 12, 16, 19 or 24 days after paraquat treatment. Results of this study showed that lungs of animals treated with paraquat were extensively damaged,as evidenced by significant increases in lung weight and decreases in lung angiotensin converting enzyme (ACE) and alkaline phosphatase enzyme (AKP) activities. Moreover,paraquat treatme; resulted in a significant reduction in the number of neutrophils in the blood of rats with a concurrent increase in the pulmonary myeloperoxidase activity,suggestive of neutrophil infiltration in the lungs of treated animals. Pretreatment of rats with liposomes alone did not significantly alter the paraquat-induced changes of all parameters examined. On the other hand, pretreatment of rats with (t-tocopherol liposomes,24 h prior to paraquat challenge, attenuated paraquat-induced changes in ACE, AKP and myeloperoxidase activities but failed to prevent increases in lung weight. Thus, pretreatment of rats with liposome-associated α-tocopherol appears to protect the lung against some of the toxic effects of paraquat

关键词： lung Am Tocopherol Protects the Lung against Long-Term Toxic Effects of Paraquat Rev Long

经会阴3D/4D超声检查对直肠膨出诊断价值的探讨

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经会阴3D/4D超声检查对直肠膨出诊断价值的探讨

青少年对父母亲职及亲子关系质量的认知:香港与上海的比较

中国超声医学工程学会第四届全国妇产及计划生育超声医学学术会议

作者：张新玲 HP.Dietz shek Kalai 广州市中山大学附属三院超声科

目的探讨经会阴超声诊断直肠膨出及与临床排泄障碍的相关性。方法对261例临床检查怀疑直肠膨出的患者进行经会阴3D/4D超声检查,存储获得的容积数据并应用4DVi ew软件进行分析。同时采用ROC曲线对其诊断效能进行评估。结果直肠膨出超声...

目的探讨经会阴超声诊断直肠膨出及与临床排泄障碍的相关性。方法对261例临床检查怀疑直肠膨出的患者进行经会阴3D/4D超声检查,存储获得的容积数据并应用4DVi ew软件进行分析。同时采用ROC曲线对其诊断效能进行评估。结果直肠膨出超声表现为:直肠壶腹部自阴道直肠隔缺损处疝入阴道内。直肠膨出的高度≥15mm时与排泄障碍密切相关,可作为诊断显著直肠膨出的截断值,诊断的

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来源： cnki会议评论

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社会 2006年第3期26卷 137-157页

作者：石丹理韩晓燕李美羚香港中文大学社会工作学系社会福利实践及研究中心上海社会科学院青少年研究所

本研究最基本的问题是:香港和上海的青少年在父母控制,亲子关系质量,以及心理健康方面是否存在着差异。香港(3,017名)和上海(3,022名)的中学生对以下几方面表达了自己的观点:父母行为控制、父母心理控制、透过中国文化本土观念评估的父... 详细信息

本研究最基本的问题是:香港和上海的青少年在父母控制,亲子关系质量,以及心理健康方面是否存在着差异。香港(3,017名)和上海(3,022名)的中学生对以下几方面表达了自己的观点:父母行为控制、父母心理控制、透过中国文化本土观念评估的父母管教、父母对传统中国文化亲职信念的认同、亲子关系质量,以及心理健康。从数据中可以得出以下结论:1)相对于上海的父母,香港父母的行为控制较弱,就传统中国文化管教观念而言的管教较弱,对传统中国文化管教子女信念的认同较弱,但他们的心理控制较强;2)相对于上海的青少年,香港的青少年认为亲子关系质量较差,他们的心理健康较差,并不太愿意在放学后回家,与父母或其他成年人在一起。

关键词：青少年父母控制亲子关系质量心理健康

感知课程的内容与影响因素的初步研究——以小学语文课程为例

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教育学报 2007年第5期3卷 28-38页

作者：刘彩祥谢锡金吴凤平香港大学教育学院

课程改革理念存在不同的呈现方式,课程理念得以实现,经历了理想课程、正式课程、感知课程、运作课程和体验课程的传递和阐释。在大陆课程改革的背景下,由于实行教材审定制,小学语文感知课程的表现形式就更为复杂。通过对政策文件、教材... 详细信息

课程改革理念存在不同的呈现方式,课程理念得以实现,经历了理想课程、正式课程、感知课程、运作课程和体验课程的传递和阐释。在大陆课程改革的背景下,由于实行教材审定制,小学语文感知课程的表现形式就更为复杂。通过对政策文件、教材编写资料、教材培训者的工作记录等文本资料的分析,发现小学语文感知课程表现形式有三种:感知课程一,通过编写实验教材体现的小学语文课程;感知课程二,实验教材的培训过程中传达的小学语文课程;感知课程三,教师个人认识和理解的小学语文课程。不同的课程感知者的身份、已有的课程经验、对课程改革的态度以及所处的外部环境等等的差异,直接影响感知课程形式所包含的内容。

关键词：课程改革感知课程小学语文课程小学语文教材

Establishing a Multifaceted Comprehensive Maternity Cohort Facilitates Understanding of How Environmental Exposures Impact Perinatal Health

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Environment & Health 2024年第11期2卷 766-775页

作者： Haitong Zhe Sun Haiyang Tang Qingyi Xiang Siyuan Xu Yijia Tian Huan Zhao Jing Fang Haizhen Dai Rui Shi Yuxia Pan Ting Luo Hangbiao Jin Chenyang Ji Yuanchen Chen Hengyi Liu Meirong Zhao Kun Tang Sheena Nishanti Ramasamy Evelyn Xiu-Ling Loo Lynette P.shek Yuming Guo Wei Xu Xiaoxia Bai Centre for Sustainable Medicine Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117609Republic of Singapore Department of Paediatrics Yong Loo Lin School of Medicine and Saw Swee Hock School of Public HealthNational University of SingaporeSingapore 117609Republic of Singapore Department of Obstetrics Women’s HospitalZhejiang University School of MedicineHangzhouZhejiang 310006PR China Yusuf Hamied Department of Chemistry University of CambridgeCambridge CB21EWUnited Kingdom Department of Earth Sciences University of CambridgeCambridge CB23EQUnited Kingdom Department of Obstetrics and Gynecology The Fourth Affiliated HospitalZhejiang University School of MedicineYiwuZhejiang 322000PR China Wenling Women’s and children’s Hospital TaizhouZhejiang 317500PR China Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of EnvironmentZhejiang University of TechnologyHangzhouZhejiang 310032PR China Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province Interdisciplinary Research AcademyZhejiang Shuren UniversityHangzhouZhejiang 310006PR China Institute of Reproductive and child Health/National Health Commission Key Laboratory of Reproductive Health School of Public HealthPeking University Health Science CentreBeijing 100191PR China Vanke School of Public Health Tsinghua UniversityBeijing 100084PR China Department of Paediatrics Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117609Republic of Singapore Department of Paediatrics Yong Loo Lin School of Medicine and Human Potential Translational Research ProgrammeYong Loo Lin School of MedicineNational University of SingaporeSingapore 117609Republic of Singapore Singapore Institute for Clinical Sciences(SICS) Agency for ScienceTechnology and Research(A^(*)STAR)Singapore 117609Republic of Singapore School of Public Health and Preventive Medicine Monash UniversityMelbourneVictoria 3004Australia Maternal and chi

china’s“three-child policy”,implemented in response to population aging,has made the protection of maternal and infant health an urgent *** this environmental and medical big-data era,the Zhejiang Environmental and Birth Health Research Alliance(ZEBRA)maternity cohort was established with the aim of identifying risk factors for perinatal morbidity and mortality from the perspectives of both observational epidemiology and experimental *** with conventional birth cohorts,the inclusion of a maternity cohort allows greater scope for research and places an emphasis on maternal *** particular,it allows us to focus on pregnant women with a history of pregnancy-related illnesses and those planning to have a second or third *** are currently many pressing issues in perinatal health,including the risk associations between exogenous together with endogenous factors and the occurrence of perinatal abnormalities,pregnancy complications,and adverse pregnancy *** is crucial to explore the interaction between environmental exposures and genetic factors affecting perinatal health if we are to improve *** is also worthwhile to assess the feasibility of the early stage prediction of major perinatal *** hope to study this in the ZEBRA cohort and also seek nationwide and international collaborations to establish a multicenter cohort consortium,with the ultimate goal of contributing epidemiological evidence to literature and providing evidence-based insights for global maternal and child healthcare.

关键词： cohort profile prospective maternity cohort perinatal health pre-eclampsia preterm birth low birth weight environmental exposure

社会工作质性评估研究的回顾(1990-2003)对中国社会工作的启示

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社会 2005年第3期25卷 70-100页

作者：石丹理韩晓燕邓敏如香港中文大学社会工作学系上海社会科学院青少年研究所香港中文大学性别研究课程

Objective: This paper reviewed and examined the quality of all the qualitative evaluation studies indexed by two key search terms of “qualitative” and “evaluation” in the Social Work Abstracts database from 1990 to 2003 against a number of criteria typically adopted in the field of qualitative research. The review led to a dissatisfactory finding of the low quality of many qualitative evaluation studies due to their insensitivity to the following issues: philosophical basis of the study, auditability (detailed documentation of the participants and data collecting procedure), biases (acknowledgement of biases and preoccupation, and steps to deal with them), credibility or trustworthiness (triangulation, peer checking and participant verification of the findings), consistency (reliability consciousness and audit trails), and critical interpretation of the data (alternative explanations, disconfirming evidence, and limitations of the study). It was recommended that researchers be cautious when utilizing findings from the published qualitative evaluation studies; that social workers be sensitive to the issue of quality when conducting qualitative evaluation studies; that researchers be critical when judging the qualitative evaluation studies in social work; that researchers develop a clear set of guidelines for qualitative studies; that social work training institutes design qualified qualitative research courses; that a database of social work in china be established; that researchers be engaged in more qualitative studies that demonstrate high quality; that myths in qualitative research be debunked; and that adequate training for social workers on qualitative evaluation studies be provided.

关键词：社会工作评估研究 database Abstracts that 中国回顾质性 search when work design the and from audit china This Work many with more high for of be to all two The led set on

非胰島素依賴型糖尿病(NIDDM)304例報告

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镜湖医学 1996年第1期 32-34页

作者：陳寅譚錫勳鏡湖医院内科中國澳門

本文總結1993~1995年鏡湖醫院内科收治的NIDDM 304例,佔同期内科住院病人2.92%,病者男女比例約1:1,年齡31~96歲,平均65.3歲,約有77.6%的病例年齡介乎50~70歲之間。病程從不足1年至25年,平均8.7年,大部份病人缺乏糖尿病知識,沒有合理的... 详细信息

本文總結1993~1995年鏡湖醫院内科收治的NIDDM 304例,佔同期内科住院病人2.92%,病者男女比例約1:1,年齡31~96歲,平均65.3歲,約有77.6%的病例年齡介乎50~70歲之間。病程從不足1年至25年,平均8.7年,大部份病人缺乏糖尿病知識,沒有合理的飲食治療,只是不規則地用口服降血糖藥,基本上沒有應用胰島素。本組病例都是因為發生各種併發症而住院,併發症多的原因是由於糖尿病沒有得到合理的治療,高血糖長期沒有得到合理的控制,故筆者認為必須大力推行糖尿病的衛生教育,使病能得到早期診斷和合理治療,以預防和減少併發症發生。

关键词：病者型糖尿病住院病人 NIDDM 高血糖降血糖男女比例治療

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清风作伴月同吟

民主 2023年第3期 53-53页

作者： shek