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基于meta-ACON自适应软阈值的旋转机械故障诊断方法 认领 引用
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作者 刘保罗 王国强 +1 位作者 石念峰 王国勇 《振动与冲击》 EI CSCD 北大核心 2026年第9期211-221,共11页
为提升旋转机械在强背景噪声及复杂工业环境下的故障诊断性能,提出了一种融合软阈值机制与元自适应开关(meta-activate or not, meta-ACON)结构的创新性诊断方法。该方法首次在meta-ACON中引入可学习软阈值机制,构建具有自适应软阈值与... 为提升旋转机械在强背景噪声及复杂工业环境下的故障诊断性能,提出了一种融合软阈值机制与元自适应开关(meta-activate or not, meta-ACON)结构的创新性诊断方法。该方法首次在meta-ACON中引入可学习软阈值机制,构建具有自适应软阈值与动态非线性激活双重特性的软阈值元自适应开关(soft-thresholding meta-ACON,STMA)激活函数。为实现参数的动态调节,基于注意力机制设计元学习模块STMA-FilterUnit,根据输入特征自适应学习滤波阈值、激活非线性参数和通道响应权重。在此基础上,将STMA-FilterUnit嵌入残差深度可分离卷积中,构建多分支残差收缩卷积网络,该网络采用并行双通道残差连接实现多尺度特征提取,利用STMA-FilterUnit进行噪声特征的抑制、关键特征的增强及跨尺度特征的融合。在凯斯西储大学轴承数据集和东南大学的齿轮箱数据集上的试验结果表明,该方法在低信噪比和变载荷条件下故障诊断准确率与泛化性能均优于对比组模型,验证了STMA在复杂工业环境中抑制干扰与提取判别性特征的有效性。 展开更多
关键词 软阈值 元学习 元自适应开关(meta-ACON) 故障诊断 旋转机械
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Comparative efficacy of group versus individual reminiscence therapy for depression in older adults:A network meta-analysis stratified by severity 认领 引用
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作者 Shan Wang Shuang Chen +3 位作者 Caiqin Wu Kunpeng Li Libing Liang Yonghong Shen 《International Journal of Nursing Sciences》 CSCD 2026年第3期348-356,I0006,I0007,共9页
Objectives To directly compare the efficacy of individual reminiscence therapy(IRT)and group reminiscence therapy(GRT)for alleviating depressive symptoms in older adults,and to evaluate their effects on secondary outc... Objectives To directly compare the efficacy of individual reminiscence therapy(IRT)and group reminiscence therapy(GRT)for alleviating depressive symptoms in older adults,and to evaluate their effects on secondary outcomes,including anxiety,cognitive function,life satisfaction,and quality of life.Methods A systematic review and network meta-analysis(NMA)was conducted.Eleven Chinese and English databases were searched from inception to December 1,2025.Randomized controlled trials(RCTs)comparing IRT or GRT against a medication control group(MCG),a non-medication control group(NCG),or each other were included.Risk of bias(RoB)was assessed using the RoB 2 tool,and evidence certainty was evaluated using the Grading of Recommendations Assessment,Development and Evaluation(GRADE)framework.Pairwise and network meta-analyses were performed,with comparisons further stratified by baseline depression severity(mild,moderate,severe).Treatment rankings were based on the surface under the cumulative ranking(SUCRA)statistic.Subgroup analyses were conducted to examine potential effect modifiers,including intervention format,baseline depression severity,control type,intervention duration,session frequency,total sessions,cumulative intervention time,geographical region,setting,and provider qualification.Results Twenty RCTs with 1,633 participants were included.For depression,both IRT and GRT were significantly superior to MCG and NCG,with no statistically significant difference between the two modalities overall(SMD=−0.03;95%CI:−0.49,0.42).Severity-stratified analysis revealed that GRT had the highest probability of being optimal for mild depression(SUCRA=92.5%),while IRT ranked highest for moderate(SUCRA=80.6%)and severe depression(SUCRA=84.5%).For secondary outcomes,IRT was superior to GRT for reducing anxiety and improving cognitive function,whereas GRT was more effective for enhancing life satisfaction.Subgroup analyses showed no significant moderating effects for any of the examined variables(all P>0.05).Conclusions Both IRT and GRT are effective for depression in older adults,with no statistically significant difference between them.GRT may be preferred for mild depression,while IRT may be more suitable for moderate-to-severe depression.IRT shows additional benefits for anxiety and cognition,whereas GRT excels in improving life satisfaction.These findings support a personalized,severity-informed approach to selecting RT delivery formats in clinical practice. 展开更多
关键词 Aged Depression Network meta-analysis Reminiscence therapy Systematic review
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Comparative effectiveness of various intubation fixation devices for patients undergoing tracheal intubation in the ICU:A systematic review and network meta-analysis 认领 引用
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作者 Zexi Huang Nianqi Cui +5 位作者 Yanmin Zheng Jianyan Yang Yueli Ping Ruiqin Sha Yonggang Liu Ying Tian 《International Journal of Nursing Sciences》 CSCD 2026年第3期340-347,I0006,共8页
Objectives This study aimed to compare and rank the efficiency of various devices used for intubation fixation in patients undergoing orotracheal intubation in the ICU.Methods A comprehensive search of pertinent datab... Objectives This study aimed to compare and rank the efficiency of various devices used for intubation fixation in patients undergoing orotracheal intubation in the ICU.Methods A comprehensive search of pertinent databases was conducted,encompassing all available records from their inception until March 2025.The databases included PubMed,Embase,Web of Science,the Cochrane Library,China Knowledge Resource Integrated Database(CNKI),Wanfang Databases,Chinese Biomedical Databases disc(CBM disc),and VIP Database.The review concentrated on randomized controlled trials(RCTs)that examined various intubation fixation devices for patients with tracheostomy in the ICU.A network meta-analysis was then performed to compare and rank the efficacy of these devices,with catheter displacement,facial pressure injuries,and patient-reported pain as the primary outcomes,by evaluating the odds ratios(ORs)and rank probabilities.Results This network meta-analysis synthesized data from 16 RCTs assessing five different intubation fixation devices.No significant differences were found among devices regarding catheter displacement or facial pressure injuries.However,hybrid fixation(using adhesive tapes and straps)provided significantly better pain relief than dental pad fixation(OR=16.27,95%CI:3.56,74.30)and had the highest ranking probability(78%)for minimizing pain.Conclusions While no single device was superior across all outcomes,hybrid fixation demonstrated a significant advantage in reducing patient pain.Future high-quality RCTs with standardized outcomes are needed to strengthen these findings and inform clinical guidelines. 展开更多
关键词 Catheter displacement Endotracheal tube Intensive Care Units Intubation fixation devices Network meta-analysis
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水稻苗期耐冷性Meta-QTL分析及候选基因预测 认领 引用
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作者 王洋洋 杨传铭 +6 位作者 张喜娟 杨贤莉 王立志 崔士泽 许鑫凯 李红宇 姜树坤 《中国水稻科学》 CAS CSCD 北大核心 2026年第3期312-326,共15页
【目的】挖掘鉴定耐冷基因进而选育耐冷品种是解决水稻低温冷害难题的最简单、直接和有效的手段之一。利用Meta-QTL分析可以有效整合不同遗传背景下控制水稻耐冷等农艺性状的基因位点,提高候选基因定位的精度和可靠性,为水稻耐冷基因的... 【目的】挖掘鉴定耐冷基因进而选育耐冷品种是解决水稻低温冷害难题的最简单、直接和有效的手段之一。利用Meta-QTL分析可以有效整合不同遗传背景下控制水稻耐冷等农艺性状的基因位点,提高候选基因定位的精度和可靠性,为水稻耐冷基因的克隆和育种利用提供数据支撑。【方法】本研究收集并整理了38项独立研究中的353个水稻苗期耐冷相关QTL,利用BioMercator 4.2软件对QTL关键信息进行整合分析。并利用GO分析和KEGG分析对鉴定的Meta-QTL进行候选基因挖掘。【结果】共鉴定出了82个Meta-QTL,其中67个(81.71%)的置信区间小于1 Mb,共包含9282个注释基因,包括已报道的25个苗期耐冷基因。利用GO分析筛选出了99、230和119个分别与非生物逆境应答、环境胁迫反应和转录因子相关的基因。进一步利用KEGG富集筛选出27、69和9个分别与非生物逆境应答、胁迫反应和转录因子相关的差异显著性基因。【结论】对353个苗期耐冷QTL进行整合分析鉴定出82个苗期耐冷Meta-QTL,GO分析确定了448个候选基因,KEGG进一步确定了105个差异表达候选基因。上述结果为水稻苗期耐冷的分子标记辅助育种和基因克隆提供有用的信息。 展开更多
关键词 水稻 耐冷性 数量性状位点 Meta分析 候选基因
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Effect of probiotics on Alzheimer’s disease:a system review and meta-analysis of randomized controlled trials 认领 引用
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作者 LÜ Meng-ze WANG Ru-yu +9 位作者 ZHOU Zi-jing HAO Zong-yun CHEN Si-qi LIN Hong-ji GUO Yang-yang ZHAO Zi-hao BA Ya-nan YANG Yi-meng YANG Heng-yao MA Jun 《解剖学报》 CAS CSCD 2026年第4期410-417,共8页
Objective To explore possible healing advantages of probiotics in controlling Alzheimer’s diseese(AD).Methods Conducting an extensive evaluation of probiotics’healing effects,encompassing various facets and perspect... Objective To explore possible healing advantages of probiotics in controlling Alzheimer’s diseese(AD).Methods Conducting an extensive evaluation of probiotics’healing effects,encompassing various facets and perspectives.We conducted an extensive search across 9 databases with no language restrictions,spanning from the inception of research to March 7,2025,to identify randomized controlled studies examining the impact of probiotic therapy on.A meta-analysis was then performed using random-effects models to determine the standardized mean difference(SMD),I2 statistic,and 95%confidence interval(CI).Results The study eventually incorporated eight randomized controlled trials(RCT),with 261 individuals in probiotic cohort and 256 in the placebo group.Probiotics significantly improved cognitive function,promoted total anti-oxidant capacity and mitigated the pro-oxidant process and inflammation.Conclusion The significance of probiotic supplements lies in their ability to enhance cognitive abilities in individuals with cognitive deficits,offering both theoretical underpinnings and actionable advice for using probiotics clinically in AD treatment. 展开更多
关键词 Alzheimer’s disease Cognition Meta-analysis Oxidative stress Probiotic
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基于改进长短时记忆网络和Meta-Learning的碳排放预测模型 认领 引用
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作者 刘年 唐宝 +1 位作者 陈晖 赵晓凤 《自动化与仪器仪表》 2026年第2期43-47,共5页
针对现有的碳排放预测方法存在小样本预测精度低的问题,研究提出了融合改进长短时记忆网络和Meta-Learning的碳排放预测模型。该模型利用Kolmogorov-Arnold Network(KAN)替代长短时记忆网络的激活函数,增强其非线性拟合能力,融入模型不... 针对现有的碳排放预测方法存在小样本预测精度低的问题,研究提出了融合改进长短时记忆网络和Meta-Learning的碳排放预测模型。该模型利用Kolmogorov-Arnold Network(KAN)替代长短时记忆网络的激活函数,增强其非线性拟合能力,融入模型不可知元学习,改进数据抽样策略。实验表明,融合模型前期收敛速度更快,最小均方根误差为0.006,较基准模型长短时记忆网络下降了93.7%,最小平均绝对误差为0.002。融合模型的预测准确率98.6%,比第二优的模型不可知元学习-长短期记忆网络提升了2.5%。融合模型的均方根误差在60%样本量之前下降速度最快,采用模型不可知元学习算法优化后的模型前期收敛速度更快。由此可得,融合模型能够有效提升碳排放小样本预测能力,为碳排放政策提供决策依据。 展开更多
关键词 LSTM Meta-Learning KAN 自回归模型 碳排放
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Meta-RAG:基于元数据驱动的电力领域检索增强生成框架 认领 引用 被引量：18
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作者 王合庆 魏杰 +2 位作者 景红雨 宋晖 徐波 《计算机工程》 CAS CSCD 北大核心 2026年第2期383-392,共10页
大语言模型(LLM)在对话、推理和知识保留能力方面展现了显著优势,但在处理电力领域知识密集型任务时仍面临事实准确性不足、知识更新难以及高质量领域数据集匮乏的问题。针对这些挑战,引入一种改进的检索增强生成(RAG)策略,该策略融合... 大语言模型(LLM)在对话、推理和知识保留能力方面展现了显著优势,但在处理电力领域知识密集型任务时仍面临事实准确性不足、知识更新难以及高质量领域数据集匮乏的问题。针对这些挑战,引入一种改进的检索增强生成(RAG)策略,该策略融合了混合检索策略和经过微调的生成模型,提供了更高效的知识捕获和更新能力。基于对现有方法的深入分析,针对电力领域的知识问答(QA)任务,提出了元数据驱动的RAG框架Meta-RAG,该框架包含数据准备、模型微调和检索推理3个阶段。数据准备阶段包括文档转换、元信息抽取与增强及文档解析模块,在此阶段,借助元信息的提取与增强确保了电力规范文档的高效索引和结构化处理,并且构建了电力领域的EleQA(Electricity Question Answering)数据集,这是一个包含19 560个问答对的电力规范问答数据集。在模型微调阶段,通过多问题生成、思维链提示生成和监督指令微调数据集构建模块,优化了模型在特定电力问答任务上的推理能力。在检索推理阶段则采用混合编码和重排序策略,结合检索和生成模块,进一步提高了答案的准确性和合理性。通过一系列实验,Meta-RAG的有效性得到验证。与Self-RAG、Corrective-RAG、Adaptive-RAG、RA-ISF等基线模型相比,Meta-RAG具有更高的回答准确率和检索命中率,其中,基于Qwen1.5-14B-Chat模型的Meta-RAG达到了整体准确率0.804 3,高于其他方法。消融实验和文档召回实验结果表明文档检索对框架性能影响最大,失去检索能力整体准确率下降了0.292 8。 展开更多
关键词 EleQA数据集 元信息抽取 知识问答 电力领域 检索增强生成 模型微调 文档转换
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基于Meta-SGD+ANIL元学习框架的小样本入侵检测研究 认领 引用
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作者 黄新卿 付长滨 曾庆鹏 《信息安全研究》 CSCD 北大核心 2026年第8期712-720,共9页
针对网络入侵检测中某些攻击类型样本稀缺、攻击样本不平衡以及新型攻击难以检测等问题,本文提出一种基于Meta-SGD+ANIL算法的元学习框架,旨在提升小样本入侵检测的效率及准确性,增强模型对少数类攻击和未知攻击的识别能力。本文从数据... 针对网络入侵检测中某些攻击类型样本稀缺、攻击样本不平衡以及新型攻击难以检测等问题,本文提出一种基于Meta-SGD+ANIL算法的元学习框架,旨在提升小样本入侵检测的效率及准确性,增强模型对少数类攻击和未知攻击的识别能力。本文从数据增强和元学习算法的应用与优化层面展开研究,首先,对不平衡数据集进行过采样和欠采样处理,动态生成小样本任务,为模型构建训练场景。使用Meta-SGD算法为特定网络模型的每个参数学习自适应学习率,提升模型在不同攻击场景下的参数调整效率。其次,本文在Meta-SGD基础上引入ANIL算法思想,仅对分类层或部分网络层的参数进行动态学习率调整,有效平衡了模型适应性和计算效率的矛盾。在小样本图像数据集Omniglot上进行实验,时间开销减少了20%,准确率仅下降不到1%。在CIC-IDS2017、CSE-CIC-IDS2018两个数据集上使用Meta-SGD算法相比传统方法训练模型准确率平均提升8.89%,引入ANIL之后,准确率仅略微下降但训练时间分别减少18%和22%。 展开更多
关键词 入侵检测 小样本学习 元学习 未知攻击检测
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基于元学习与VAE-GAN的META-VAEGANDNN网络入侵检测方法 认领 引用
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作者 王璐 赵利辉 +2 位作者 安洋 符赫 常家瑜 《中北大学学报（自然科学版）》 CAS 2026年第4期541-552,共12页
针对网络入侵检测中数据集不平衡导致少数类攻击识别困难的问题,本文提出一种基于元学习与变分自编码器生成对抗网络(VAE-GAN)的网络入侵检测方法META-VAEGAN-DNN。首先,构建META-VAEGAN数据增强模型以缓解数据集不平衡的问题;其次,提... 针对网络入侵检测中数据集不平衡导致少数类攻击识别困难的问题,本文提出一种基于元学习与变分自编码器生成对抗网络(VAE-GAN)的网络入侵检测方法META-VAEGAN-DNN。首先,构建META-VAEGAN数据增强模型以缓解数据集不平衡的问题;其次,提出差异化样本处理策略,并针对少数类样本设计渐进式质量筛选机制,在提升整体样本质量的同时确保少数类样本的有效生成;最后,通过结合通道注意力与多层残差连接的DNN模型对生成的平衡数据集进行分类。基于NSL-KDD数据集的实验表明,META-VAEGAN-DNN模型在网络攻击检测中的准确率、F1分数和AUC分别达到了89%,90%和98%;其中U2R类别的精确率和召回率分别提升至98%和99%;R2L类别的精确率和召回率分别提升至99%和73%,显著优于传统方法。在CIC-IDS-2017数据集上的辅助验证进一步证明了模型的通用性。 展开更多
关键词 变分自编码器 生成对抗网络 元学习 入侵检测
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Correlated factors of posttraumatic growth in patients with colorectal cancer:A systematic review and meta-analysis 认领 引用 被引量：3
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作者 Dingyuan Wei Xue Wang +4 位作者 Mengxing Wang Jiayan Wang Fangping Chen Luyang Jin Xuemei Xian 《International Journal of Nursing Sciences》 CSCD 2025年第1期96-105,I0005,共10页
Objectives:This systematic review and meta-analysis aimed to identify and synthesize the factors correlated with posttraumatic growth(PTG)in patients with colorectal cancer(CRC).Methods:PubMed,Web of Science,Embase,Ps... Objectives:This systematic review and meta-analysis aimed to identify and synthesize the factors correlated with posttraumatic growth(PTG)in patients with colorectal cancer(CRC).Methods:PubMed,Web of Science,Embase,PsycINFO,CINAHL,Cochrane Library,China National Knowledge Infrastructure(CNKI),Wanfang database,China Science and Technology Journal Database(VIP)and SinoMed were searched for studies that reported data on the correlated factors associated with PTG in patients with CRC from inception to September 3,2024.The methodological quality of the included studies was assessed via the Agency for Healthcare Research and Quality(AHRQ)methodology checklist and the Newcastle-Ottawa Scale(NOS).Pearson correlation coefficient(r)was utilized to indicate effect size.Meta-analysis was conducted in R Studio.Results:Thirty-one eligible studies encompassing 6,400 participants were included in this review.Correlated factors were identified to be significantly associated with PTG in patients with CRC including demographic factors:residential area(r=0.13),marital status(r=0.10),employment status(r=0.18),education level(r=0.19),income level(r=0.16);disease-related factors:time since surgery(r=0.17),stoma-related complications(r=0.14),health-promoting behavior(r=0.46),and sexual function(r=0.17);psychosocial factors:confrontation coping(r=0.68),avoidance coping(r=-0.65),deliberate rumination(r=0.56),social support(r=0.47),family function(r=0.50),resilience(r=0.53),selfefficacy(r=0.91),self-compassion(r=-0.32),psychosocial adjustment(r=0.39),gratitude(r=0.45),stigma(r=-0.65),self-perceived burden(r=-0.31),fear of cancer recurrence(r=-0.45);and quality of life(r=0.32).Conclusions:This meta-analysis identified 23 factors associated with PTG in CRC patients.Medical workers can combine those relevant factors from the perspective of positive psychology,further explore the occurrence and development mechanism of PTG,and establish targeted interventions to promote PTG. 展开更多
关键词 Colorectal cancer Correlated factors Meta-analysis Posttraumatic growth Positive psychology
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Effectiveness of nulliparous women’s different childbirth positions during the second stage of labor:A systematic review and network meta-analysis 认领 引用 被引量：1
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作者 Hongyan Liu Lingling Li +5 位作者 Xiaojiao Wang Xinli Zhu Liping Sun Chunxiang Zhu Hui Min Chunyi Gu 《International Journal of Nursing Sciences》 CSCD 2025年第3期268-275,共8页
Objectives A systematic review and network meta-analysis was conducted to evaluate the effectiveness of different childbirth positions in reducing the duration of the second stage of labor,providing evidence-based ins... Objectives A systematic review and network meta-analysis was conducted to evaluate the effectiveness of different childbirth positions in reducing the duration of the second stage of labor,providing evidence-based insights for obstetric institutions to guide interventions related to childbirth positions.Methods A comprehensive literature search was conducted in databases,including PubMed,Web of Science,the Cochrane Library,Embase,Wanfang Databases,China National Knowledge Infrastructure Databases(CNKI),China Science and Technology Journal Database(CSTJ),and China Biology Medicine disc(CBMdisc)to identify studies on the effectiveness of different childbirth positions in reducing the duration of the second stage of labor.The search included randomized controlled trials published from database inception to September 30,2024.The Cochrane risk-of-bias tool was used to assess the quality of the studies.Two independent reviewers screened the literature,extracted data,and evaluated study quality.Subsequently,a network meta-analysis was performed using STATA software.The study protocol has been registered in PROSPERO(CRD42023428217).Results This study analyzed data from 25 randomized controlled trials involving 9,844 women.The findings indicated that in comparison to lithotomy position,free position(MD=20.53,95%CI[11.38,29.68])and upright position(MD=−24.13,95%CI[−42.94,-5.32])were found to be superior in reducing the duration of the second stage of labor.Free position outperformed kneeling position(MD=21.48,95%CI[4.67,38.28])and squatting position(MD=23.43,95%CI[1.88,44.97]);upright position was superior to kneeling position(MD=−25.08,95%CI[−46.93,−3.22]);semirecumbent position surpassed squatting position(MD=19.71,95%CI[2.05,37.38]);and upright position was also superior to squatting position(MD=−27.03,95%CI[−51.48,−2.57]).According to the surface under the cumulative ranking curve(SUCRA),the upright position emerged as the most effective for reducing the duration of the second stage of labor(87.4%),followed by free position(81.1%),semirecumbent position(70.0%),and lateral position(62.3%).Conclusion These findings offer valuable insights for midwifery practice and help inform future research directions.Considering the limitations of this review,more larger-scale,multicenter randomized controlled trials are warranted to further evaluate the relative effectiveness of different childbirth positions in reducing the duration of the second stage of labor. 展开更多
关键词 Childbirth Position Nulliparous women Network meta-analysis Second stage of labor
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Meta-synthesis of the experience of nurses with“Internet Nursing Service”in China 认领 引用 被引量：2
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作者 Wenyan Liu Yao Li +3 位作者 Huanhuan Zhu Kexin Li Haiting Deng Xiaoyan Cai 《International Journal of Nursing Sciences》 CSCD 2025年第3期233-240,I0003,I0004,共8页
Objective Systematically integrate nurses’experience with“Internet Nursing Service”to analysis the nurses’experiences with“Internet Nursing Service”,and to provide a theoretical reference for formulating a more ... Objective Systematically integrate nurses’experience with“Internet Nursing Service”to analysis the nurses’experiences with“Internet Nursing Service”,and to provide a theoretical reference for formulating a more rational“Internet Nursing Service”model.Methods A systematic search in PubMed,Embase,Web of Science,the Cochrane Library,CINAHL,China National Knowledge Infrastructure(CNKI),Wanfang Database,and Chinese Biomedical Literature Database was conducted to collect qualitative research on nurses’experiences with“Internet Nursing Service,”with a retrieval time limit from December 2019 to June 2024.Qualitative meta-synthesis was performed through line-by-line coding of relevant quotes,organization of codes into descriptive themes,and development of analytical themes.Results A total of 19 studies were included,one study was rated as Grade A in quality evaluation,and the remaining studies were rated as Grade B.Collectively synthesized into three integrated results:Harvest and growth,Difficulties and challenges,and Expectations and support.Harvest and growth,include 1)manifestation of self-value,2)enhancing nursing capabilities,3)optimizing nursing resources;Difficulties and challenges,include 1)lack of safety guarantee,2)role conflict;Expectations and support include,1)expectation for professional knowledge and skill training,2)expectations for service platform optimization,3)expectation for reasonable charges,4)expectation for related policy support.Conclusion“Internet Nursing Service”model benefits both nurses and patients,but still full of challenges.It aids in the decentralization of medical resources.Management departments still need to encourage nurses to actively invest in“Internet Nursing Service”while ensuring their safety and interests. 展开更多
关键词 Internet Nursing Service Meta-synthesis Nursing Nurse work experience Qualitative research
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Efficacyand safety of exercise rehabilitation in the vulnerable phase in patients with acute decompensated heart failure:A systematic review and meta-analysis 认领 引用 被引量：2
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作者 Lihua Zhao Jing Ye +2 位作者 Zhuo Zhao Lei Yang Yimei Zheng 《International Journal of Nursing Sciences》 CSCD 2025年第4期408-414,I0006,I0007,共7页
Objectives:This study aimed to assess the impact of exercise rehabilitation during the vulnerable period on cardiac recovery(CR)outcomes in patients with acute decompensated heart failure(ADHF).Methods:Multiple databa... Objectives:This study aimed to assess the impact of exercise rehabilitation during the vulnerable period on cardiac recovery(CR)outcomes in patients with acute decompensated heart failure(ADHF).Methods:Multiple databases including PubMed,Web of Science,Embase,the Cochrane Library,CINAHL,China National Knowledge Infrastructure(CNKI),Chinese Science and Technology Periodical Database(VIP),Wanfang database,SinoMed,ClinicalTrials.gov,and American Heart Association(AHA)and European Society of Cardiology(ESC)were searched for RCTs on exercise rehabilitation in ADHF patients’vulnerable period from inception to April 2,2025.The risk of bias was assessed with Cochrane Risk of Bias 2.0,and data were analyzed in RevMan 5.3.Results:A total of seven RCTs involving 946 patients were included.The results demonstrated that exercise rehabilitation training during the vulnerable period in patients with ADHF significantly increased the 6-min walk test distance(6-MWTD)(SMD=0.37;95%CI:0.09,0.65;P=0.01),short physical performance battery(SPPB)score(MD=1.26;95%CI:0.82,1.70;P<0.001)and peak oxygen consumption(VO2peak)(SMD=1.43;95%CI:0.53,2.34;P=0.002),improved quality of life(QoL)(SMD=0.85;95%CI:0.07,1.64,P=0.03),reduced depression score(MD=-0.73;95%CI:1.27,-0.18;P=0.009),frailty(MD=-0.22;95%CI:-0.48,0.05;P=0.11),and decreased 6-month all-cause readmission(OR=0.67;95%CI:0.49,0.91;P=0.01).However,no statistically significantdifferences were observed between the two groups in left ventricular ejection fraction(LVEF)(MD=0.96;95%CI:-1.84,3.77;P=0.50),6-month heart failure(HF)-related readmission(OR=1.01;95%CI:0.66,1.53;P=0.98),and all-cause mortality(OR=0.63;95%CI:0.18,2.24;P=0.47).There were no adverse events reported.Conclusions:Exercise rehabilitation during the vulnerable phase improves exercise tolerance,QoL,and depressive symptoms while reducing 6-month all-cause readmissions in ADHF patients,with no reported adverse events.Although trends toward improved LVEF,HF-related readmissions,and all-cause mortality were observed.Large-scale,high-quality studies are warranted to explore individualized responses and long-term outcomes. 展开更多
关键词 Acute decompensated heart failure Exercise rehabilitation Evidence-based nursing Meta-analysis Vulnerable period
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基于Meta-AHP-IPA的城市蓝绿空间生态系统服务功能评价——以马鞍山市为例 认领 引用 被引量：1
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作者 涂燕茹 邢龙 +2 位作者 伍旭坤 陈阵 张琼 《白城师范学院学报》 2025年第2期67-74,共8页
科学评价城市蓝绿空间生态系统服务功能,对于维护生态平衡、改善人居环境及促进可持续发展具有重要意义.选取蓝绿交织特征典型的马鞍山市为研究对象,引入Meta-AHP-IPA组合模型,构建了城市蓝绿空间生态系统服务功能评价指标体系并进行了... 科学评价城市蓝绿空间生态系统服务功能,对于维护生态平衡、改善人居环境及促进可持续发展具有重要意义.选取蓝绿交织特征典型的马鞍山市为研究对象,引入Meta-AHP-IPA组合模型,构建了城市蓝绿空间生态系统服务功能评价指标体系并进行了重要性与绩效评价.结果表明:(1)生态系统服务功能具有多样性和层次性,评价指标体系主要由供给服务、调节服务、支持服务、文化服务4类12项要素组成,不同视角下各项指标重要度评判结果一致性较高,综合权重确定休闲娱乐、精神满足、美学体验、空气质量调节优先;(2)各项服务功能的优先级和绩效水平存在差异,美学体验、生物圈稳定性维持、气候调节位于保持优势区,水资源供给、生物栖息地多样性、水文调节位于级次过渡区,土壤保持、养分循环、食材供给位于低序优先区,休闲娱乐、精神满足、空气质量调节位于重点改善区;(3)Meta-AHP-IPA组合模型为城市生态系统服务功能评价提供了一种系统、适用、可行、有效的新途径. 展开更多
关键词 Meta-AHP-IPA 蓝绿空间 生态系统服务 马鞍山
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玉米茎秆倒伏相关性状 Meta-QTL 分析及候选基因初步验证 认领 引用
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作者 房海悦 栾天宇 +8 位作者 王雪 曲文利 张春宵 周小辉 董菁 李淑芳 刘学岩 李晓辉 金峰学 《玉米科学》 CAS CSCD 北大核心 2025年第8期35-44,共10页
借助IBM22008 neighbors高密度遗传图谱整合802个玉米茎秆倒伏相关QTL,采用元分析方法获得64个MQTL(meta quantitative trait loci,MQTL),覆盖玉米全基因组。与水稻抗倒伏基因同源比对获得5个玉米茎秆倒伏相关候选基因,分别定位在玉米第... 借助IBM22008 neighbors高密度遗传图谱整合802个玉米茎秆倒伏相关QTL,采用元分析方法获得64个MQTL(meta quantitative trait loci,MQTL),覆盖玉米全基因组。与水稻抗倒伏基因同源比对获得5个玉米茎秆倒伏相关候选基因,分别定位在玉米第1、3、4和9染色体上。通过基因表达分析表明,5个候选基因可能参与茎秆发育生物学过程,进而调控对茎秆机械强度。玉米茎秆倒伏相关性状MQTL及候选基因分析可以为分子标记辅助育种及相关基因克隆提供信息。 展开更多
关键词 玉米 茎秆倒伏 元分析 Meta-QTL 候选基因
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Prevalence of workplace violence against nurses in Saudi Arabia:A systematic review and meta-analysis 认领 引用
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作者 Mohammed Abdelmalik Atallah Alenezi +9 位作者 Mohamed Abdallah Ibrahim Ibrahim Mohammed Ahmed Mohammead O.Mohammead Almoez M.Mohammed Abdalrahman Saeed Fahad M.Alhowaymel Abdulaziz F.Abaoud Binyameen Sambu Ibraheem A.Alhowaymel 《International Journal of Nursing Sciences》 CSCD 2025年第5期438-444,I0002,共7页
Objectives:Workplace violence is a serious issue in healthcare settings.Nurses are particularly vulnerable,and such violence significantly impacts their professional lives,leading to decreased productivity and care qu... Objectives:Workplace violence is a serious issue in healthcare settings.Nurses are particularly vulnerable,and such violence significantly impacts their professional lives,leading to decreased productivity and care quality.We aimed to estimate the pooled prevalence of workplace violence against nurses through systematic review and meta-analysis in Saudi Arabia.Methods:Databases were searched for articles published in English from 2013 to 2023,including PubMed,Web of Science,Science Direct,Medline,Emerald,Wiley,and ProQuest.The quality of the included studies was rigorously assessed using the Joanna Briggs Institute(JBI)critical appraisal tools.Meta-analysis was conducted using Comprehensive Meta-Analysis software.Subgroup analysis,metaregression,and publication bias tests were performed.Results:The pooled prevalence of workplace violence among nurses in Saudi Arabia was 61.8%(95%CI:45.8%-75.6%).Subgroup analysis showed the highest prevalence of workplace violence in studies conducted before 2020 at 69.7%(95%CI:42.0%-88.0%)and 2020-2023 at 57.0%(95%Cl:35.6%-76.1%);in the western region at 90.2%(95%CI:70.2%-97.3%);among female nurses at 81.8%(95%Cl:66.9%-90.9%);with patient relatives as perpetrators at 70.8%(95%Cl:46.4%-87.2%);during afternoon shifts at 78.5%(95%CI:64.4%-88.1%);for verbal abuse at 54.9%(95%Cl:31.3%-76.6%);and in the intensive care unit at 68.1%(95%Cl:28.1%-92.1%).Meta-regression analysis revealed that the night shift significantly contributed to heterogeneity.The funnel plot and Egger's regression test(P=0.647)indicated no significant publication bias.Conclusions:This meta-analysis showed the estimate of workplace violence against nurses in Saudi Arabia is 61.8%.Nursing managers and health policymakers should implement targeted interventions to prevent workplace violence,especially among female nurses,during afternoon shifts,in intensive care units,and in the western region of Saudi Arabia. 展开更多
关键词 Meta-analysis Nurses Prevalence Saudi Arabia Systematic review Workplace violence
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基于Meta-Gaussian模型的陕西省农业干旱风险评估 认领 引用 被引量：4
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作者 闫瀚文 粟晓玲 吴海江 《华北水利水电大学学报（自然科学版）》 北大核心 2025年第1期41-52,共12页
近年来,世界各地高温干旱复合极端气候事件频发,导致农业干旱风险加剧,严重威胁区域的粮食安全和水资源安全。因此,定量评估高温干旱复合事件驱动下的农业干旱风险对防旱减灾具有重要意义。分别以6个月尺度的标准化降水指数(SPI)、3个... 近年来,世界各地高温干旱复合极端气候事件频发,导致农业干旱风险加剧,严重威胁区域的粮食安全和水资源安全。因此,定量评估高温干旱复合事件驱动下的农业干旱风险对防旱减灾具有重要意义。分别以6个月尺度的标准化降水指数(SPI)、3个月尺度的标准化温度指数(STI)和标准化土壤湿度指数(SSI)表征气象干旱、高温事件和农业干旱,并基于Meta-Gaussian模型的多变量条件概率和联合概率评估不同事件组合下陕西省夏季发生农业干旱的风险。结果表明:①随着驱动组合事件变量的增多和严重程度的加剧,陕西省遭受农业干旱的风险增大(条件概率二维>0.30,三维>0.35,四维>0.50)。其中,气象干旱和高温事件条件下,农业干旱发生风险最大的月份分别为8月和6月。②随着并发事件增多和严重程度的加剧,陕西省多变量复合事件的风险减小(联合概率二维<0.30,三维<0.20,四维<0.15)。相比陕北和陕南地区,关中平原遭遇多变量复合事件驱动的农业干旱风险更大。 展开更多
关键词 农业干旱 多变量复合事件 Meta-Gaussian模型 风险评估
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Meta-analysis of the clinical efficacy of wax therapy combined with conventional pharmacotherapy in rheumatoid arthritis treatment 认领 引用 被引量：1
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作者 Wangxing Zeng Qian Deng +4 位作者 Zining Peng Fanyu Meng Weitian Yan Nian Liu Jiangyun Peng 《Journal of Chinese Pharmaceutical Sciences》 CAS CSCD 2025年第3期284-292,共9页
This study aimed to systematically evaluate the clinical efficacy of combining wax therapy with conventional drug therapy for rheumatoid arthritis(RA)and to provide evidence supporting its clinical application.A compr... This study aimed to systematically evaluate the clinical efficacy of combining wax therapy with conventional drug therapy for rheumatoid arthritis(RA)and to provide evidence supporting its clinical application.A comprehensive search was conducted across PubMed,Cochrane Library,China Biomedical Literature Database(CBM),China National Knowledge Infrastructure(CNKI),Wanfang,and VIP databases from their inception to May 2024.Randomized controlled trials(RCTs)investigating the combination of wax therapy and conventional drug therapy for RA were included in the analysis.Statistical analysis was performed using Review Manager 5.3 software.Nine studies,encompassing a total of 843 patients,were included.The results demonstrated that the combination therapy significantly improved clinical efficacy compared to conventional drug therapy alone[RR=1.22,95%CI(1.11,1.34)].Moreover,the combination therapy led to notable improvements in DAS 28 scores[MD=-0.90,95%CI(-1.23,-0.57),P<0.00001],VAS scores[MD=-0.90,95%CI(-1.13,-0.66),P<0.00001],reduction in joint tenderness[MD=-1.27,95%CI(-1.81,-0.72),P<0.00001],decreased duration of morning stiffness[MD=-25.47,95%CI(-34.33,-16.61),P<0.00001],and lowered C-reactive protein levels[MD=-6.29,95%CI(-12.02,-0.57),P<0.05].In conclusion,wax therapy combined with conventional anti-rheumatic drugs significantly enhanced the clinical outcomes for RA patients by alleviating symptoms,reducing joint pain and morning stiffness,and decreasing inflammatory markers more effectively than conventional drug therapy alone. 展开更多
关键词 Rheumatoid arthritis Wax therapy Clinical effects Meta-analysis
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Public participation willingness in out-of-hospital cardiopulmonary resuscitation: A systematic review and meta-analysis 认领 引用 被引量：1
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作者 Yuqiu Cheng Chunzhi Zhang +3 位作者 Li Chen Hongjun Liu Wanling He Zeya Shi 《International Journal of Nursing Sciences》 CSCD 2025年第2期192-199,共8页
Objective This systematic review and meta-analysis aimed to identify the main factors influencing the public’s willingness to participate in out-of-hospital emergency care.Methods Studies were searched in online data... Objective This systematic review and meta-analysis aimed to identify the main factors influencing the public’s willingness to participate in out-of-hospital emergency care.Methods Studies were searched in online databases,including PubMed,Embase,Web of Science,and the Cochrane Library.The articles included in this review were published from inception to July 31,2024.The Iain Crombie assessment tool was used to assess study quality.Meta-analysis was performed using RevMan(version 5.4)software.The review protocol has been registered with PROSPERO(CRD42024570491).Results A total of 1,434 research articles were initially identified,among which 18 were incorporated into this study,and all of the included studies were cross-sectional.Meta-analysis results demonstrated that gender(male;OR=1.37,95%CI:1.28–1.47),profession(healthcare provider;OR=0.17,95%CI:0.06–0.47),knowledge and skill level(OR=1.63,95%CI:1.25–2.11),willingness to undergo training(OR=2.68,95%CI:1.89–3.79),interest in first aid(OR=2.08,95%CI:1.60–2.69),previous training(OR=2.14,95%CI:1.49–3.08),and previous first-aid experience(OR=1.70,95%CI:1.37–2.11)were the principal influencing factors of the public’s willingness to engage in out-of-hospital cardiopulmonary resuscitation.Conclusion Demographic factors,knowledge,belief,and behavior are crucial in influencing public emergency decision-making.Medical personnel could create specialized training programs based on relevant factors to enhance the public's willingness to engage in out-of-hospital CPR. 展开更多
关键词 Cardiopulmonary resuscitation Factors Meta-analysis Out-of-hospital cardiac arrest Public Willingness
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小样本下基于原型域增强的Meta-DAE故障诊断 认领 引用 被引量：1
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作者 马萍 梁城 +2 位作者 王聪 李新凯 张宏立 《华南理工大学学报（自然科学版）》 EI CAS CSCD 北大核心 2025年第1期62-73,共12页
滚动轴承作为一种精密的机械元件,已广泛运用于现代工业机械设备中。在轴承运行时,采用合理的方法诊断轴承的故障具有重大的意义。但在实际复杂多变环境下,采集振动信号不仅面临样本量少的问题,还受到噪声干扰、工况变换等因素的影响,... 滚动轴承作为一种精密的机械元件,已广泛运用于现代工业机械设备中。在轴承运行时,采用合理的方法诊断轴承的故障具有重大的意义。但在实际复杂多变环境下,采集振动信号不仅面临样本量少的问题,还受到噪声干扰、工况变换等因素的影响,导致故障诊断的准确率低。因此,针对噪声干扰和变工况下的小样本滚动轴承故障诊断问题,该文提出了一种基于原型域增强的元学习去噪模型(Meta-DAE)。首先,构造基于时频图的小样本故障样本集,引入深度卷积生成对抗网络并对数据进行预处理,生成相似分布的伪样本集;然后,将故障样本集输入Meta-DAE模型进行自适应特征提取,Meta-DAE模型采用原型域增强策略,使同类别原型点在嵌入空间中凝聚更紧密;同时,构建了具有降噪性能的编码器,设计了基于原型域增强和去噪的目标函数,通过在小样本下进行模型微调,以提高小样本下模型的噪声鲁棒性和分类准确率。噪声及变工况下小样本故障诊断实验结果表明,相比于其他模型,所提模型在-8dB强噪声干扰下,仅用10个样本微调模型,分类准确率提高了35.78~57.25个百分点,具有较强的噪声鲁棒性。 展开更多
关键词 小样本 故障诊断 元学习 原型域增强 去噪自编码器
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