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Feeding rumen-protected choline during the periconceptional period programs postnatal phenotype of suckled beef calves
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作者 Masroor Sagheer McKenzie L.J.Haimon +9 位作者 Samuel Hincapie Montoya Daniella Heredia Federico Tarnonsky Mauro E.Venturini Angella Gonella-Diaza Nicolas DiLorenzo Joseph W.McFadden Gabriela Dalmaso de Melo Ky G.Pohler Peter J.Hansen 《Journal of Animal Science and Biotechnology》 2025年第4期1696-1703,共8页
Background Supplementation of choline chloride in culture medium programs the preimplantation bovine embryo to increase weaning weight of the resultant calf.Here,it was hypothesized that similar programming actions of... Background Supplementation of choline chloride in culture medium programs the preimplantation bovine embryo to increase weaning weight of the resultant calf.Here,it was hypothesized that similar programming actions of choline can be induced by feeding rumen-protected choline(RPC)to beef cows during the periconceptional period.Results A preliminary experiment was conducted to determine changes in circulating concentrations of choline and its metabolites after RPC supplementation.Suckled beef cows were individually fed 0,30,60,and 90 g of RPC(i.e.,0,8.6,17.3 and 25.9 g choline chloride)and blood samples were collected at random times after feeding.There were no differences in plasma concentrations of choline or its metabolites between groups.In the second experiment,effects of feeding 60 g/d RPC from d-1 to 7 relative to timed artificial insemination were examined for suckled beef cows.Feeding RPC did not affect pregnancy or calving rates,pregnancy losses,plasma concentrations of pregnancy-associated glycoproteins,gestation length or calf birth weight.Calves from RPC fed dams were lighter than control calves at~118 days of age(range 75–150;age included in the statistical model)and at weaning at~248 days of age.There was no effect of treatment on hip height at~118 days of age although there was a trend for RPC calves to be shorter at weaning.Weight/height ratio was lower for RPC than control at both 118 and 248 days of age.Treatment did not affect testis weight at~118 days of age.Conclusions Supplementation of RPC during the periconceptional period programmed development to alter calf phenotype in the postnatal period.The net result,reduced body weight,was the opposite of the phenotype caused by the addition of choline to embryo culture medium. 展开更多
关键词 Beef cattle CHOLINE PREGNANCY PROGRAMMING
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National prevention programs and their effects on gastric cancer Incidence and mortality in East Asian countries
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作者 Min Cai Ruiqi Xia +2 位作者 Ziyang Wang Ruoxin Zhang Wanghong Xu 《Cancer Biology & Medicine》 2025年第5期488-495,共8页
Gastric cancer(GC)remains one of the most common cancers and leading causes of cancer deaths globally1with 60.0%of cases and 56.6%of deaths occurring in East Asia.South Korea and Japan have conducted nationwide GC scr... Gastric cancer(GC)remains one of the most common cancers and leading causes of cancer deaths globally1with 60.0%of cases and 56.6%of deaths occurring in East Asia.South Korea and Japan have conducted nationwide GC screening programs for decades but with essential differences in strategies,organization,and coverage2. 展开更多
关键词 screening programs gastric cancer gc remains national prevention programs East Asian countries gastric cancer incidence MORTALITY Japan South Korea
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Examining communication effectiveness in multicultural fitness programs-multivariate analyses
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作者 Ran Wei Yuanlong Liu Xinxin Li 《Translational Exercise Biomedicine》 2025年第3期188-200,共13页
Objectives:The objective of this study was to examine communication effectiveness(CE)in conjunction with participant satisfaction in a multicultural fitness program.Methods:Adults from a fitness program site with part... Objectives:The objective of this study was to examine communication effectiveness(CE)in conjunction with participant satisfaction in a multicultural fitness program.Methods:Adults from a fitness program site with participant diversity and multicultural backgrounds were selected and asked to complete a three-part Fitness CE Evaluation Scale questionnaire:CE Questionnaire and Customer Satisfaction(CS)Scale plus a short demographic survey.A sample of 95 participants was recruited from a Midwest Functional 45 Fitness Training Program site in the U.S.A.Multivariate Analysis of Variance(MANOVA)tests were conducted for CE and CS variable vectors.Results:The results showed that there were significant main effects on CE and CS for nationality(p=0.001;p<0.001)and language(p=0.006;p<0.001),but no effect for participation frequency,respectively;there were also significant main effects on CS for gender(p=0.006)and membership type(p=0.019).Univariate tests revealed that domestics and/or first language participants scored significantly higher on reactionto strangers(p=0.001;p=0.001),uncertainty(p<0.001;p<0.001),facilities/services(p<0.001;p<0.001),individual/psychological factor(p=0.009;p=0.034),relaxation(p=0.018;p=0.021),social factor(p<0.001;p=0.002),and health/fitness(p<0.001;p=0.001),respectively.Conclusions:Being highly aware of fitness participants’uncertainty and reaction to strangers can help multicultural fitness program managers or trainers improve their communication effectiveness,which will continue improving their customers’satisfaction. 展开更多
关键词 communication effectiveness customer satisfaction fitness program anxiety/uncertainty management theory multicultural setting
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Research on the Revision of Employment-Oriented Talent Training Programs in Xinjiang Vocational Colleges of Physical Education
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作者 Fengmei Zhang Yanbing Yang 《Journal of Contemporary Educational Research》 2025年第11期140-143,共4页
Focusing on the reform of talent training under the background of the integration of production and education in vocational education,this paper takes Xinjiang Vocational College of Physical Education as the research ... Focusing on the reform of talent training under the background of the integration of production and education in vocational education,this paper takes Xinjiang Vocational College of Physical Education as the research object.Based on the field survey data of 36 enterprises and public institutions in Urumqi and Kashgar regions from May to June 2023,it systematically analyzes the demand characteristics,ability requirements of employers for sports professionals,and their feedback on current training programs.The research finds that employers have a strong demand for talent in sports training and physical education,and generally attach importance to professional skills and comprehensive quality,but they believe that graduates need pre-job training to be competent for the positions.Most units recognize the existing curriculum structure and support school-enterprise cooperation.Accordingly,this paper proposes that we should take moral education as the fundamental,optimize professional positioning,reconstruct the modular curriculum system,strengthen practical teaching and the integration of“courses,certificates,competitions,and posts,”deepen the coordination of production and education,and build a new employment-oriented training mechanism for high-quality sports technical and skilled talents. 展开更多
关键词 Employment orientation Vocational colleges of physical education Talent training program Integration of production and education
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Usefulness of cardiac rehabilitation programs among older patients undergoing transcatheter aortic valve replacement:how should we do it?
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作者 Vicente Arrarte Esteban Raquel Campuzano Ruiz +4 位作者 Rosa Fernández Olmo Armando Oterino Pablo Diez-Villanueva Miryam González Cebrián Lucía Matute-Blanco 《Journal of Geriatric Cardiology》 2025年第9期818-827,共10页
Severe aortic stenosis has increased exponentially as a result of the aging of the population.Transcatheter aortic valve replacement(TAVR)procedures increase by 20%-30%per year in Spain.Referred patients are increasin... Severe aortic stenosis has increased exponentially as a result of the aging of the population.Transcatheter aortic valve replacement(TAVR)procedures increase by 20%-30%per year in Spain.Referred patients are increasingly older,have comorbidities,and frailty.TAVR cardiac rehabilitation(CR)programs significantly improve both functional capacity and quality of life of patients.However,there are no guidelines on how to carry out them and few elderly patients are referred to CR.Furthermore,mortality in women who undergo TAVR is higher than in men and even fewer are referred to CR programs.Multidisciplinary patient care,including comorbidities and frailty,is essential.It is necessary to ensure exquisite continuity of care during TAVR,CR,and the rest of the patient's life.Telerehabilitation could be an option in some lower-risk patients to include more patients in CR programs after TAVR,given the high demand.This article reviews the evidence on why CR should be performed in post-TAVR patients and proposes a practical and novel approach to the care process and the recommended aspects and components of the CR program. 展开更多
关键词 COMORBIDITIES TELEREHABILITATION severe aortic stenosis older patients cardiac rehabilitation cr programs transcatheter aortic valve replacement FRAILTY aortic valve replacement tavr procedures
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新疆地热资源分布、成因及开发利用方向:第三次新疆综合科学考察地热科考成果综述
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作者 孔彦龙 董远卓 +26 位作者 叶灿滔 程远志 乃尉华 庞忠和 马伟斌 张健 龚宇烈 李义曼 姜光政 王迎春 古丽波斯坦·吐逊江 田小明 李棱雪 师德扬 张程凯 田逸楠 李斌 陈锋 张磊 王珂 任亚倩 张伟尊 罗冠中 段佳斌 陈娅奎 张小雷 汪集暘 《地学前缘》 北大核心 2026年第1期283-295,共13页
基于“冷壳冷幔”的理论认识,新疆一直被认为是地热资源相对贫瘠的地区,其总体勘查和开发利用情况远落后于内地。第三次新疆综合科学考察课题“地热等清洁能源资源综合调查与评价”在收集整理全疆地热已有成果的基础上,重点开展野外补... 基于“冷壳冷幔”的理论认识,新疆一直被认为是地热资源相对贫瘠的地区,其总体勘查和开发利用情况远落后于内地。第三次新疆综合科学考察课题“地热等清洁能源资源综合调查与评价”在收集整理全疆地热已有成果的基础上,重点开展野外补充调查,新发现了地热点位11处,补充确定了地热资源赋存形式2种,估算新疆地热资源量折合超过18亿吨标准煤。调查结果显示,新疆地热资源主要分布于盆间隆起山地,与其主要人口分布保持高度一致,而较少的人口基数决定了新疆人均地热资源量较高,反而说明了其具有较大的开发利用潜力。新疆地热资源表现出“北疆禀赋差,南疆禀赋好”的分布格局:北疆天山、阿勒泰山地区广泛发育以断裂深循环成因的中低温水热型地热资源,而在南疆帕米尔高原,受印度欧亚板块碰撞的影响,形成了目前新疆唯一发现的高温地热资源。然而,新疆地热资源开发利用整体水平相对较低,开发利用方式单一,以洗浴保健和旅游疗养为主,且主要在经济发展较好、交通较方便的北疆,南疆地热开发利用程度较低。通过本次科学考察摸清了新疆地热资源分布与开发利用现状情况,结合新疆国土空间规划,围绕新疆“双碳”发展战略,课题组提出新疆地热能源资源开发利用路线建议:在南疆塔什库尔干塔吉克自治县等地区推动“地热发电+综合利用”发展,在北疆温泉县等地区大力推进“地热+”综合能源开发,在乌昌石城市群全面深化浅层、中深层岩土地热能利用。 展开更多
关键词 第三次新疆综合科学考察 能源转型 资源禀赋 地热开发 地热发电 地热供暖
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含大规模分布式光伏的低压配电网综合治理技术
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作者 王书征 孙玉柱 +3 位作者 赵景涛 郑舒 吴志 石春虎 《电力自动化设备》 北大核心 2026年第1期171-178,208,共9页
随着越来越多的分布式光伏并入低压配电网,配电网的线路损耗、电压越限、三相不平衡等问题日益严重,而单一的治理手段无法满足光伏并网产生的多样化治理需求。为此,提出一种基于电抗器、AC/DC变换器协调配合的低压台区综合治理装置,该... 随着越来越多的分布式光伏并入低压配电网,配电网的线路损耗、电压越限、三相不平衡等问题日益严重,而单一的治理手段无法满足光伏并网产生的多样化治理需求。为此,提出一种基于电抗器、AC/DC变换器协调配合的低压台区综合治理装置,该装置提供2个直流接口,可以灵活增配储能以及实现台区间的柔性互联。基于该装置,构建以减小台区电压偏差、治理三相不平衡以及降低网损为目标的低压配电网运行优化模型;利用对称半正定规划算法,通过凸松弛将原始的非凸非线性模型转换成便于求解的对称半正定规划模型。在某实际系统上对不同综合治理装置配置方式下的治理效果进行对比分析,验证了综合治理装置对解决分布式光伏并网带来的一系列问题的有效性。 展开更多
关键词 综合治理 光伏并网 低压台区 对称半正定规划算法 配电网 运行优化
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基于CDIO理念的“Python程序设计”课程教学实践改革
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作者 骆岩红 曹维萍 《计算机应用文摘》 2026年第1期53-55,62,共4页
针对传统程序设计语言课程中普遍存在的理论与实践脱节、学生知识应用能力薄弱等问题,文章基于CDIO工程教育模式,提出了一套“Python程序设计”课程教学改革方案。该方案以培养学生解决实际工程问题的能力为核心目标,通过将CDIO理念深... 针对传统程序设计语言课程中普遍存在的理论与实践脱节、学生知识应用能力薄弱等问题,文章基于CDIO工程教育模式,提出了一套“Python程序设计”课程教学改革方案。该方案以培养学生解决实际工程问题的能力为核心目标,通过将CDIO理念深度融入教学内容与教学方法,旨在帮助学生掌握编程技术的实践应用,激发学生对程序设计课程的学习兴趣。改革方案更加注重学生在学习过程中应具备的能力与素质培养,强调创新能力、团队协作能力和实践能力的综合发展,从而有效提升学生的实际应用水平与就业竞争力。 展开更多
关键词 CDIO Python程序设计 项目驱动
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“N221四元一体”大学生科技竞赛团队组建模式研究
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作者 刘亮 贺超 +2 位作者 李亚猛 张志萍 杨绍旗 《科教文汇》 2026年第1期20-23,共4页
大学生是未来科技创新活动的主力军,培养大学生的科技创新能力是国家战略科技力量建设的关键环节。科技竞赛是培养大学生科技创新能力的重要载体,而团队建设是保障竞赛效果的核心引擎。当前大学生科技竞赛团队组建面临一系列问题,限制... 大学生是未来科技创新活动的主力军,培养大学生的科技创新能力是国家战略科技力量建设的关键环节。科技竞赛是培养大学生科技创新能力的重要载体,而团队建设是保障竞赛效果的核心引擎。当前大学生科技竞赛团队组建面临一系列问题,限制了大学生科技竞赛的育人效果。因此,本文提出构建“N221四元一体”梯级协同育人团队,为提高大学生科技竞赛的育人效果提供系统性支撑。 展开更多
关键词 科技竞赛 团队组建 结构化 本硕联动 学科联动
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基于多目标优化的复杂热电联产系统运行规划
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作者 陈坚红 王国雲 +2 位作者 左克清 张洪坤 鲍彦克 《浙江大学学报(工学版)》 北大核心 2026年第1期148-157,共10页
热电厂的扩建、改造和升级显著增加了热电联产系统在机组数量、种类及性能劣化程度等方面的复杂性.针对复杂热电联产系统的运行规划,综合考虑机组在实际运行过程中的启停状态、爬坡速率等影响因素,构建基于能效、㶲、经济、环境等的多目... 热电厂的扩建、改造和升级显著增加了热电联产系统在机组数量、种类及性能劣化程度等方面的复杂性.针对复杂热电联产系统的运行规划,综合考虑机组在实际运行过程中的启停状态、爬坡速率等影响因素,构建基于能效、㶲、经济、环境等的多目标优化模型.引入熵权法客观地分配各目标的权重,将多目标优化问题转化为单目标优化问题;采用动态规划算法进行求解,确保最优解的确定性和客观性.以某热电厂的复杂热电联产系统为例,随机选取24 h的热电负荷需求进行运行规划和计算分析,并将优化结果与原设计方案进行对比,结果表明优化计算后运行成本降低了7.96万元/d.所提模型能够有效地提升复杂热电联产系统运行的经济性与可靠性. 展开更多
关键词 复杂热电联产系统 多目标优化 运行规划 熵权法 动态规划法
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供应链数字化对企业可持续发展绩效的影响效应研究
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作者 杨恺钧 向晚逸 《工业技术经济》 北大核心 2026年第1期110-119,共10页
推动供应链数字化是实体经济和数字经济深度融合发展的核心路径之一,也是现阶段驱动企业可持续发展的重要抓手。本文基于上市企业微观面板数据,系统探究供应链数字化对企业可持续发展绩效的影响机制,研究发现:(1)基准回归结果证实供应... 推动供应链数字化是实体经济和数字经济深度融合发展的核心路径之一,也是现阶段驱动企业可持续发展的重要抓手。本文基于上市企业微观面板数据,系统探究供应链数字化对企业可持续发展绩效的影响机制,研究发现:(1)基准回归结果证实供应链数字化对企业可持续发展绩效具有显著正向促进作用,该结论经稳健性检验后依然成立;(2)创新投入在二者间发挥中介作用,供应链数字化可以通过提升研发投入强度间接赋能企业可持续发展;(3)异质性分析显示这一影响存在区域和企业性质分化特征,东部地区企业以及国有企业和民营企业的正向效应更为显著。本文研究有助于企业精准推进供应链数字化转型、提升可持续发展能力,也为政府制定差异化支持政策提供了实证参考。 展开更多
关键词 供应链数字化 企业可持续发展绩效 供应链创新与试点 创新投入 高质量发展 区域差异 创新驱动 绿色转型
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Monadically slicing programs with procedures
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作者 张迎周 张卫丰 《Journal of Southeast University(English Edition)》 EI CAS 2008年第2期178-182,共5页
A two-phase monadic approach is presented for monadically slicing programs with procedures. In the monadic slice algorithm for interprocedural programs, phase 1 initializes the slice table of formal parameters in a pr... A two-phase monadic approach is presented for monadically slicing programs with procedures. In the monadic slice algorithm for interprocedural programs, phase 1 initializes the slice table of formal parameters in a procedure with the given labels, and then captures the callees' influence on callers when analyzing call statements. Phase 2 captures the callees' dependence on callers by replacing all given labels appearing in the corresponding sets of formal parameters. By the introduction of given labels, this slice method can obtain similar summary information in system-dependence-graph(SDG)-based algorithms for addressing the calling-context problem. With the use of the slice monad transformer, this monadic slicing approach achieves a high level of modularity and flexibility. It shows that the monadic interprocedural algorithm has less complexity and it is not less precise than SDG algorithms. 展开更多
关键词 program slicing monadic semantics interprocedural slicing calling-context problem
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Approach to evaluating exception handling of programs
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作者 姜淑娟 徐宝文 《Journal of Southeast University(English Edition)》 EI CAS 2007年第4期524-528,共5页
To solve the problems that the exception handling code is hard to test and maintain and that it affects the robustness and reliability of software, a method for evaluating the exception handling of programs is present... To solve the problems that the exception handling code is hard to test and maintain and that it affects the robustness and reliability of software, a method for evaluating the exception handling of programs is presented. The exception propagation graph (EPG) that describes the large programs with exception handling constructs is proposed by simplifying the control flow graph and it is applied to a case to verify its validity. According to the EPG, the exception handling code that never executes is identified; the points that are the most critical to controlling exception propagation are found; and the irrational exception handling code is corrected. The constructing algorithm for the EPG is given; thus, this provides a basis for automatically constructing the EPG and automatically correcting the irrational exception handling code. 展开更多
关键词 software robustness exception handling exception propagation evaluating program control flow graph
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美国SpaceX“星链”计划产业创新生态构建及对我国商业航天发展的启示
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作者 丁新宇 李湘黔 +1 位作者 李思远 陈全 《中国科技论坛》 北大核心 2026年第1期172-180,共9页
发展商业航天既是国际竞争和大国博弈的重要战略支撑,也是建设航天强国、加快发展新质生产力的必然要求。美国SpaceX的“星链”计划无疑是商业航天发展的成功范例,其独特的产业创新生态更是引人注目。借鉴“星链”计划的发展经验和有益... 发展商业航天既是国际竞争和大国博弈的重要战略支撑,也是建设航天强国、加快发展新质生产力的必然要求。美国SpaceX的“星链”计划无疑是商业航天发展的成功范例,其独特的产业创新生态更是引人注目。借鉴“星链”计划的发展经验和有益成果,对加强我国商业航天发展具有重要理论和实践价值。本文以“星链”计划为例,通过解构SpaceX构建“星链”产业创新生态的内在逻辑,并结合我国商业航天发展的现状,在借鉴“星链”计划经验做法的基础上,进一步提出适配我国商业航天发展的新思路和政策建议,以加快构建以企业为主导的产业创新生态,推动科技创新和产业创新深度融合,提升我国商业航天的国际竞争力,促进我国航天事业高质量发展。 展开更多
关键词 商业航天 SpaceX“星链”计划 产业创新生态 启示
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中国成人疫苗接种健康促进策略专家共识
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作者 清华大学健康中国研究院 北京大学公共卫生学院 +3 位作者 南方科技大学全科医学院 公共安全科学技术学会公共卫生安全与健康专业委员会 梁万年 刘珏 《中国全科医学》 北大核心 2026年第6期681-687,共7页
疫苗可预防的疾病给成年人带来了沉重的健康负担,当下我国成人免疫规划方面存在的诸多短板亟待正视与解决。《中国成人疫苗接种健康促进策略专家共识》由清华大学健康中国研究院、北京大学公共卫生学院、南方科技大学全科医学院、公共... 疫苗可预防的疾病给成年人带来了沉重的健康负担,当下我国成人免疫规划方面存在的诸多短板亟待正视与解决。《中国成人疫苗接种健康促进策略专家共识》由清华大学健康中国研究院、北京大学公共卫生学院、南方科技大学全科医学院、公共安全科学技术学会公共卫生安全与健康专业委员会牵头,联合国内多家机构的专家学者共同制订。该共识结合免疫促进相关领域多学科专家的循证科学证据及实践智慧与经验,从成人疫苗接种的必要性与健康价值、我国成人疫苗接种服务体系的现状与挑战,以及从医防融合理论出发,到推进全科医生疫苗处方、构建成人免疫战略规划形成专家共识,提供科学、系统、可操作的共识性意见建议,旨在为政府决策部门、公共卫生机构、医疗服务提供者及健康促进从业者提供科学指导,推动基于全生命周期视角的重点成人群体疫苗接种工作。 展开更多
关键词 成人疫苗接种 健康促进 专家共识 免疫规划
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Reprogramming induced neurons from olfactory ensheathing glial cells: A feasible approach for spinal cord injury repair
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作者 Javier Sierra María Portela-Lomba +1 位作者 Diana Simón M.Teresa Moreno-Flores 《Neural Regeneration Research》 2026年第1期296-297,共2页
Every year, around the world, between 250,000 and 500,000 people suffer a spinal cord injury(SCI). SCI is a devastating medical condition that arises from trauma or disease-induced damage to the spinal cord, disruptin... Every year, around the world, between 250,000 and 500,000 people suffer a spinal cord injury(SCI). SCI is a devastating medical condition that arises from trauma or disease-induced damage to the spinal cord, disrupting the neural connections that allow communication between the brain and the rest of the body, which results in varying degrees of motor and sensory impairment. Disconnection in the spinal tracts is an irreversible condition owing to the poor capacity for spontaneous axonal regeneration in the affected neurons. 展开更多
关键词 INJURY feasible PROGRAMMING
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小鼠抗猪PD-L2单克隆抗体的制备
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作者 许晓东 唐钰冰 +2 位作者 刘玉钤 王泊皓 杨桂红 《福建农林大学学报(自然科学版)》 北大核心 2026年第1期88-97,共10页
【目的】制备猪源程序性死亡配体2(pPD-L2)蛋白特异性的单克隆抗体(mAb),用于其生物学功能研究及相关猪免疫抑制性疾病的诊断与治疗。【方法】构建pPD-L2原核表达质粒,进行目的蛋白诱导表达及纯化;将pPD-L2重组蛋白注射至小鼠中,将免疫... 【目的】制备猪源程序性死亡配体2(pPD-L2)蛋白特异性的单克隆抗体(mAb),用于其生物学功能研究及相关猪免疫抑制性疾病的诊断与治疗。【方法】构建pPD-L2原核表达质粒,进行目的蛋白诱导表达及纯化;将pPD-L2重组蛋白注射至小鼠中,将免疫小鼠的脾细胞与骨髓瘤细胞融合后,采用间接酶联免疫吸附试验(ELISA)筛选能稳定分泌抗猪PD-L2的阳性杂交瘤细胞。采用蛋白质免疫印迹(Western blotting)鉴定鸡脾脏、鸭脾脏、猪肺泡巨噬细胞(3D4/21)、人非小细胞肺癌细胞(A549)、非洲绿猴肾细胞(Vero)和犬肾细胞(MDCK)与pPD-L2 mAb的种属交叉反应性。采用Western blotting和间接免疫荧光试验(IFA)检测pPD-L2 mAb的适用性。【结果】成功获得一株能稳定分泌抗猪pPD-L2蛋白的杂交瘤细胞3C10。间接ELISA检测显示,该pPD-L2 mAb的效价高达1∶1×10^(7)。种属交叉反应性检测表明,该pPD-L2 mAb仅与猪源细胞(3D4/21)发生特异性反应,具有高度的种属特异性。Western blotting和IFA检测表明,该pPD-L2 mAb适用于检测pPD-L2蛋白的表达和定位。【结论】成功制备了一株特异性强、效价高的pPD-L2 mAb杂交瘤细胞3C10。 展开更多
关键词 程序性死亡配体2 单克隆抗体 效价 特异性
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中青年早期肺癌术后病人居家康复期体力活动方案的构建与初步应用
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作者 陈道明 杨丽琴 +7 位作者 妞美娥 钱红英 赵茜 吴振云 孙锦庭 秦春兰 钱佳慧 苏钰斌 《护理研究》 北大核心 2026年第1期9-20,共12页
目的:构建中青年早期肺癌术后病人居家康复期体力活动方案并评价其初步应用效果。方法:提取并分析肺癌术后病人居家康复期体力活动相关文献,结合焦点小组访谈,了解中青年早期肺癌术后病人居家康复期体力活动干预需求,形成中青年早期肺... 目的:构建中青年早期肺癌术后病人居家康复期体力活动方案并评价其初步应用效果。方法:提取并分析肺癌术后病人居家康复期体力活动相关文献,结合焦点小组访谈,了解中青年早期肺癌术后病人居家康复期体力活动干预需求,形成中青年早期肺癌术后病人居家康复期体力活动方案初稿,并按照TIDieR干预模板进行报告;后经2轮德尔菲专家咨询对方案初稿进行修订完善,形成中青年早期肺癌术后病人居家康复期体力活动方案终稿。招募2023年9月—10月在苏州市某三级甲等医院胸外科住院并计划行肺癌切除术的中青年早期肺癌病人50例并随机分为对照组及试验组。对照组病人采用常规出院指导,试验组病人在常规出院指导基础上接受形成的中青年早期肺癌术后病人居家康复期体力活动方案,比较两组病人干预前和干预8周后的体力活动水平、身体功能、不良事件发生率,并收集试验组病人的干预依从性以及病人对干预方案的接受情况。结果:2轮函询问卷的有效回收率均为100%,第2轮专家权威系数为0.86,肯德尔和谐系数为0.337(均P<0.001),变异系数为0.00~0.11;构建的中青年早期肺癌术后病人居家康复期体力活动方案终稿包含12个模块、25项内容。本研究最终共招募中青年早期肺癌病人38例(排除12例),其中对照组及试验组各19例。初步应用结果显示,干预8周后,试验组病人的体力活动水平和身体功能高于对照组(P<0.05);两组病人在干预中均无不良事件发生,且试验组病人的干预依从性较好,病人对方案的接受度较高。结论:构建的中青年早期肺癌术后病人居家康复期体力活动方案具有科学性及实用性,有助于提高病人居家康复期体力活动水平和身体功能,且病人对方案的接受度较高,方案具有较好的适用性。 展开更多
关键词 中青年 肺癌 居家康复 体力活动 干预方案 不良事件 依从性
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Fluid Forces on a Hydrofoil for Kitefoil and Windfoil Boards:Experimental Investigation on Their Dependence on the Froude Number Based on Submergence
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作者 H.Martínez-Barberá J.Calderon-Sanchez +1 位作者 L.Moulian A.Souto-Iglesias 《哈尔滨工程大学学报(英文版)》 2026年第1期1-14,共14页
Races using kitefoil and windfoil surfboards have been in the Olympic Games for the first time in Paris 2024,signalling their relevance in sailing sports.However,the dynamics of these devices is yet not well understoo... Races using kitefoil and windfoil surfboards have been in the Olympic Games for the first time in Paris 2024,signalling their relevance in sailing sports.However,the dynamics of these devices is yet not well understood,in particular the influence on the hydrodynamic forces and moments of the distance of the foil to the free surface.Considering this,the present paper documents an experimental investigation in which forces and torque produced,under uniform flow,by a full-scale state-of-the-art hydrofoil(suitable both for kitesurf and windsurf)were measured.A range of velocities,angles of attack,and submergences were tested,leading to Froude numbers based on submergence with maximum values around five,a typical range in actual sailing conditions.From these tests,formulae for the hydrodynamic coefficients have been proposed.They can be used for developing Velocity Prediction Programs(VPP)for this kind of craft,a necessary tool to plan racing configurations and to analyze their racing performance.With the aim of making the experimental data useful for benchmarking numerical models and for future research on related topics such as foil ventilation and transition to turbulence,the specimen’s 3D file is provided as supplementary material to this paper. 展开更多
关键词 HYDROFOIL Kitefoil Windfoil Velocity prediction programs Lift coefficient Drag coefficient
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程序性细胞死亡配体1与头颈癌风险的孟德尔随机化研究
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作者 尚宏悦 刘铁军 +4 位作者 姚曼曼 路月亭 董博 宋炜晶 张纪傲 《国际口腔医学杂志》 北大核心 2026年第1期67-75,共9页
目的评估程序性细胞死亡配体1(PD-L1)与不同类型头颈癌风险之间的因果关系。方法利用大规模遗传数据进行孟德尔随机化(MR)分析,通过逆方差加权法(IVW)、孟德尔随机化-艾格法(MR-Egger)、简单模式法和加权中位数法等方法评估PD-L1与不同... 目的评估程序性细胞死亡配体1(PD-L1)与不同类型头颈癌风险之间的因果关系。方法利用大规模遗传数据进行孟德尔随机化(MR)分析,通过逆方差加权法(IVW)、孟德尔随机化-艾格法(MR-Egger)、简单模式法和加权中位数法等方法评估PD-L1与不同类型头颈癌风险之间的因果关系。同时采用MR-Egger和孟德尔随机化多效性残差和离群值(MR-PRESSO)来评估水平多效性,Cochran’s Q检验来评估异质性,留一法实验来评估敏感性。结果遗传预测结果显示,PD-L1与头颈部鳞状细胞癌(HNSCC)(OR=1.0003,95%CI:1.0000~1.0006,P=0.049)、口腔及口咽癌(OC&PC)(OR=1.0003,95%CI:1.0001~1.0006,P=0.018)存在因果关系。结论本研究分析表明,PD-L1是HNSCC、OC&PC的危险因素。 展开更多
关键词 孟德尔随机化 程序性死亡配体1 头颈癌 风险
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