期刊文献+
共找到23,357篇文章
< 1 2 250 >
每页显示 20 50 100
Perceptions and emotions in postoperative recovery of patients with perianal diseases 被引量:1
1
作者 Bryan Adrian Priego-Parra Jose Maria Remes-Troche 《World Journal of Psychiatry》 SCIE 2025年第1期179-184,共6页
This article examines the complex relationship between disease perception,negative emotions,and their impact on postoperative recovery in patients with perianal diseases.These conditions not only cause physical discom... This article examines the complex relationship between disease perception,negative emotions,and their impact on postoperative recovery in patients with perianal diseases.These conditions not only cause physical discomfort,but also carry a significant emotional burden,often exacerbated by social stigma.Psycho-logical factors,including stress,anxiety,and depression,activate neuroendocrine pathways,such as the hypothalamic–pituitary–adrenal axis,disrupting the gut microbiota and leading to dysbiosis.This disruption can delay wound healing,prolong hospital stay,and intensify pain.Drawing on the findings of Hou et al,our article highlights the critical role of illness perception and negative emotions in shaping recovery outcomes.It advocates for a holistic approach that integrates psychological support and gut microbiota modulation,to enhance healing and improve overall patient outcomes. 展开更多
关键词 Perianal disease Illness perception Gut microbiota Post-surgical outcomes MICROBIOTA
暂未订购
Healthcare providers’perceptions of artificial intelligence in diabetes care:A cross-sectional study in China 被引量:5
2
作者 Yongzhen Mo Fang Zhao +8 位作者 Li Yuan Qiuling Xing Yingxia Zhou Quanying Wu Caihong Li Juan Lin Haidi Wu Shunzhi Deng Mingxia Zhang 《International Journal of Nursing Sciences》 2025年第3期218-224,I0003,共8页
Objectives Diabetes remains a major global health challenge in China.Artificial intelligence(AI)has demonstrated considerable potential in improving diabetes management.This study aimed to assess healthcare providers... Objectives Diabetes remains a major global health challenge in China.Artificial intelligence(AI)has demonstrated considerable potential in improving diabetes management.This study aimed to assess healthcare providers’perceptions regarding AI in diabetes care across China.Methods A cross-sectional survey was conducted using snowball sampling from November 12 to November 24,2024.We selected 514 physicians and nurses by a snowball sampling method from healthcare providers across 30 cities or provinces in China.The self-developed questionnaire comprised five sections with 19 questions assessing medical workers’demographic characteristics,AI-related experience and interest,awareness,attitudes,and concerns regarding AI in diabetes care.Statistical analysis was performed using t-test,analysis of variance(ANOVA),and linear regression.Results Among them,20.0%and 48.1%of respondents had participated in AI-related research and training,while 85.4%expressed moderate to high interest in AI training for diabetes care.Most respondents reported partial awareness of AI in diabetes care,and only 12.6%exhibited a comprehensive or substantial understanding.Attitudes toward AI in diabetes care were generally positive,with a mean score of 24.50±3.38.Nurses demonstrated significantly higher scores than physicians(P<0.05).Greater awareness,prior AI training experience,and higher interest in AI training in diabetes care were strongly associated with more positive attitudes(P<0.05).Key concerns regarding AI included trust issues from AI-clinician inconsistencies(77.2%),increased workload and clinical workflow disruptions(63.4%),and incomplete legal and regulatory frameworks(60.3%).Only 34.2%of respondents expressed concerns about job displacement,indicating general confidence in their professional roles.Conclusions While Chinese healthcare providers show moderate awareness of AI in diabetes care,their attitudes are generally positive,and they are considerably interested in future training.Tailored,role-specific AI training is essential for equitable and effective integration into clinical practice.Additionally,transparent,reliable,ethical AI models must be prioritized to alleviate practitioners’concerns. 展开更多
关键词 Artificial intelligence ATTITUDES DIABETES Medical workers NURSING perceptions
暂未订购
Perceptions of Sierra Leonean Mango Farmers on the Pest Status and Current Management Practices for the Control of Fruit Fly in Sierra Leone
3
作者 Paul Borbor Brewah Alusaine Edward Samura +2 位作者 Abu James Sundufu Vandi Amara Raymonda Adeline Bernadette Johnson 《Advances in Entomology》 2025年第1期94-106,共13页
Tephritid fruit flies are considered one of the world’s most notorious pests of horticultural crops, including mango (Mangefera indica L.) in Sierra Leone, causing extensive direct and indirect damage. A survey was c... Tephritid fruit flies are considered one of the world’s most notorious pests of horticultural crops, including mango (Mangefera indica L.) in Sierra Leone, causing extensive direct and indirect damage. A survey was conducted among 60 mango farmers in 7 districts in Sierra Leone between June and August, 2022, to assess their perceptions regarding fruit fly pest status and the current management options adopted for the control of this pest. Semi-structured questions designed in an open and closed-ended fashion were used for the study. The majority (83%) of the farmers were already aware of the fruit fly problem in the country with 62% perceiving it to be very severe. The majority (60%) of farmers, however, demonstrated poor knowledge of identifying fruit fly species, especially Bactrocera dorsalis, Ceratitis capitata, and Ceratitis cosyra. Farmers were more conversant about the direct damage symptoms to host fruits and the economic impact of fruit flies. A total of 32% of growers took no action to control fruit flies on their farms. Sixty-nine percent (69%) of the farmers adopted cultural control measures, like practicing prompt harvesting, collection and disposal of infested fruits, and weeding to maintain better sanitary conditions on their farms. Recommended fruit fly management strategies such as the use of botanicals and resistant varieties were either unknown or inaccessible to growers. A total of 52% applied chemicals that were not recommended for the control of fruit flies without considering their environmental and health risks. It is important to train fruit growers to improve their capabilities for fruit fly management through extension agents that are appropriate for helping them acquire basic knowledge of fruit fly pests and their management. 展开更多
关键词 Fruit Growers Fruit Fly Pests KNOWLEDGE perceptions Sierra Leone
在线阅读 下载PDF
Perceptions and experiences of generative artificial intelligence training to support research for Chinese nurses:A qualitative focus group study
4
作者 Ling Tong Yirou Niu +3 位作者 Lixue Zhou Shuai Jin Yanling Wang Qian Xiao 《International Journal of Nursing Sciences》 2025年第3期210-217,I0002,共9页
Objectives Nurses’clinical research activities have contributed to optimizing the care process and improving patient outcomes,and generative artificial intelligence(GAI)may help clinical nurses strengthen their resea... Objectives Nurses’clinical research activities have contributed to optimizing the care process and improving patient outcomes,and generative artificial intelligence(GAI)may help clinical nurses strengthen their research skills.To support research,this study aimed to explore the Chinese nurses’perceptions and experiences of GAI training.Methods This study used a descriptive qualitative design.The China Nurses Network conducted a three-day training session on“GAI for Nursing Research”theme,we selected 23 nurses by a convenience sampling method among participating in the training.The researchers conducted three focus group interviews at the end of each day.All focus groups were interviewed face-to-face to facilitate interaction,data collection,and observation.The data were analyzed using conventional content analysis and coded manually.Results The results showed that nurses’use of GAI to support scientific research was dynamic and characterized by evolving perceptions and practices.Four themes and 11 sub-themes emerged from the analysis:1)utilization efficacy:cope with research ability,affected by many factors;2)booster research:growth and challenges go hand in hand;3)role reversal:from GAI-dominated to nurse-dominated;4)beautiful dream:more features on research,more assistants on clinical care.Conclusions The effectiveness of GAI in supporting clinical nurses in conducting research is mainly limited by differences in personal research literacy,lack of ethical regulation,and information accuracy.In the future,it is necessary to improve nurses’relevant skills through specialized training and promote the standardization of technical regulations to ensure the appropriate application of GAI in nursing research. 展开更多
关键词 EXPERIENCE Generative artificial intelligence NURSE perceptions Qualitative study Research capacity
暂未订购
Bridging the gap:Nursing faculty’s perceptions and challenges in teaching generation Z students
5
作者 Poonam SHARMA Lisa CHADHA +1 位作者 Inu ARYA Rajwant KAUR 《Journal of Integrative Nursing》 2025年第3期171-178,共8页
Objective:This study aims to assess nursing faculty’s perceptions and challenges in teaching Generation Z students,providing insights into the barriers and opportunities in bridging the generational learning gap.Mate... Objective:This study aims to assess nursing faculty’s perceptions and challenges in teaching Generation Z students,providing insights into the barriers and opportunities in bridging the generational learning gap.Material and Methods:A descriptive cross-sectional study was conducted among 335 nursing faculty members in the Delhi NCR region.Participants were recruited using a snowball sampling technique,and data were collected via a self-administered structured questionnaire.The questionnaire measured faculty perceptions and challenges using a Likert scale,with reliability assessed using Cronbach’s alpha.Data were analyzed through Descriptive and inferential statistics.Results:Findings revealed that while faculty recognize the need for technology integration and student-centered learning,they face challenges such as academic integrity concerns,psychological stress,and adapting to Gen Z’s expectations for personalized learning.The correlation between faculty perceptions and challenges was negligible(r=0.020,P=0.717),indicating that faculty perceptions remain stable despite these difficulties.Conclusion:Nursing faculty need to adapt pedagogical approaches to meet the evolving needs of Gen Z students.Bridging the gap between traditional teaching methods and the evolving needs of Generation Z requires faculty training,institutional support,and curriculum innovations. 展开更多
关键词 Faculty perceptions Generation Z nursing education nursing faculty pedagogical challenges technology integration
在线阅读 下载PDF
Perceptions of sex education among college students:A case study of a medical school
6
作者 Shang-Yu Lv Zhuo-Cong Bao +6 位作者 Zhao-Dong Liu Ye Zhang Yu-Le Gu Bing-Kui Li Yun-Shu Deng Yu-Ji Zhang Yan Zhang 《World Journal of Psychiatry》 2025年第4期237-250,共14页
BACKGROUND Sex education was introduced early in foreign countries.For example,there is a more systematic sex education system abroad,which can better achieve the popularization of sex education.China's sex educat... BACKGROUND Sex education was introduced early in foreign countries.For example,there is a more systematic sex education system abroad,which can better achieve the popularization of sex education.China's sex education started relatively late,yet there are many problems in the development of sex education in China;for example,college students lack knowledge of sexuality.AIM To explore the perception of sex education among medical college students.METHODS Students majoring in medicine in a medical school were selected as the survey subjects.Anonymous online questionnaires were used to conduct the survey,and the results were analyzed using GraphPad Prism,SPSS,Microsoft Excel,and other software.The questionnaire was administered to understand the source of sexual knowledge,sexual responsibility,mastery of sexual knowledge,and distress caused by sexual problems.RESULTS Most students majoring in medicine had no formal sex education,lacked sexual knowledge,or had a biased understanding of sexual responsibility.This study analyzed future research trends in sex education based on relevant achievements in the Chinese context and abroad to further realize the practical significance and value of sex education popularization in China and provide recommendations for parents and schools at different levels.CONCLUSION Sex education should be conducted among college students,and medical colleges and universities should strengthen scientific sex education. 展开更多
关键词 College students Sex education Medical schools perceptions Observational study
暂未订购
Emotional intelligence and perceptions of patient safety competence among nursing students in clinical practice: The moderating role of moral courage
7
作者 Huan Ma Jinmei Zou Ying Zhong 《Journal of Psychology in Africa》 2025年第1期21-27,共7页
This study explored the mediating role of moral courage in the relationship between emotional intelligence and perceptions of patient safety competence among nursing students in clinical practice.The study sample comp... This study explored the mediating role of moral courage in the relationship between emotional intelligence and perceptions of patient safety competence among nursing students in clinical practice.The study sample comprised 220 nursing students from a teaching hospital(female=93.6%;mean age=20.64 years,SD=1.78 years).Nursing students completed standardized measures of Emotional Intelligence Scale,the Moral Courage Scale,and the Health Professional Education in Patient Safety Survey.Following hierarchical regression analysis and bootstrap analysis,the results showed that emotional intelligence and moral courage significantly predicted high levels of the perceptions of patient safety competence among nursing students in clinical practice.Moreover,moral courage partially mediated the relationship emotional intelligence and perceptions of patient safety competence.The results indicate measures focused on improving emotional intelligence and moral courage levels among nursing students in clinical practice will be effective at increasing their perceptions of patient safety competence. 展开更多
关键词 moral courage emotional intelligence perceptions of patient safety competence nursing students clinical practice
在线阅读 下载PDF
Perceptions and recommendations of multiparas and health-related professionals on appropriate birth intervals:A descriptive qualitative study
8
作者 Hongyan Liu Xinli Zhu +5 位作者 Zhijing Xu Shuang Liang Ya Liu Xiaojiao Wang Xu Qian Chunyi Gu 《International Journal of Nursing Sciences》 2025年第5期469-476,I0003,共9页
Objectives:This study aimed to explore the perceptions and recommendations of multiparas and health-related professionals regarding appropriate birth intervals(Bis)and key determinants.Methods:In-depth semi-structured... Objectives:This study aimed to explore the perceptions and recommendations of multiparas and health-related professionals regarding appropriate birth intervals(Bis)and key determinants.Methods:In-depth semi-structured interviews were conducted between April 1 and June 30,2022.Nine multiparas and thirteen health-related professionals were purposefully sampled until data saturation was reached.A thematic analysis approach was applied to the interview transcripts,utilizing dual independent coding and consensus validation in NVivo 12.0.Results:The data generated two overarching categories:1)balanced decision-making on the appropriate birth intervals and 2)internal and external determinants integrated with health and societal considerations.Four key themes emerged following the two categories:1)consistency and discrepancy between the actual and recommended birth intervals of multiparas;2)health-and developmentoriented professional recommendations;3)internal determinants related to individual-level factors;and 4)external determinants related to child-related factors,family support,and social security.Weighing women's reproductive health and career development,multiparas and health-related professionals perceived a length between 18 and 36 months as the appropriate Bl.Conclusion:Multiparas and health-related professionals shaped their balanced recommendations on a relatively appropriate birth interval ranging from 18 to 36 months,which was influenced by women's individual-level factors,child-related factors,family support,and social security.Targeted social and healthcare services should be offered to women and their families during the Bls. 展开更多
关键词 Birth interval Health personnel MULTIPARA Perception Risk factor
暂未订购
Encouraging Environmental Sensitivity and Earth Science Performance:Perceptions from First-Year Teacher Education Students
9
作者 Aldrex A.Barrientos 《Journal of Environmental & Earth Sciences》 2025年第4期180-192,共13页
This study explores the environmental sensitivity of first-year teacher education stu dents,focusing on the relationship between their Earth Science performance,demographic factors,and their cognitive and emotional re... This study explores the environmental sensitivity of first-year teacher education stu dents,focusing on the relationship between their Earth Science performance,demographic factors,and their cognitive and emotional responses to environmental challenges.Using a descriptive correlational design within a mixed-methods framework,the research incorporates tools such as the Environmental Sensitivity Test(EST),focus group discussions(FGDs),and eco-mapping to comprehensively collect and analyze data.The findings reveal that while students exhibit a general awareness of environmental issues,this awareness does not consistently translate into sustainable practices,particularly in areas such as water conservation and waste management.A weak and statistically insignificant correlation was identified between Earth Science performance and environmental sensitivity,indicating that academic achievement in the subject does not necessarily lead to environmentally responsible behaviors.The results underscore the importance of teacher education programs integrating principles of behavioral psychology,experiential learning,and focused environmental education.Specifically,secondary science teachers should be equipped with practical strategies,such as implementing project-based learning,organizing community-centered environmental initiatives,and fostering interdisciplinary approaches to sustainability.These interventions address the gap in preparing future educators to effectively advocate for and implement sustainable practices.Strengthening teacher preparation programs with these components ensures that science educators are better equipped to cultivate a new generation of environmentally responsible citizens. 展开更多
关键词 Environmental Sensitivity Earth Science PERFORMANCE PERCEPTION First-Year Students Teacher Education Students
在线阅读 下载PDF
Valuation of Visitors'Perceptions on the Ecosystem Services of Urban Forest Park in Johor,Malaysia
10
作者 Miza Farhanah Bilal Azlan Abas 《Research in Ecology》 2025年第4期108-124,共17页
Urban forest parks deliver a wide spectrum of ecosystem services that support biodiversity,climate regulation,and public well-being;however,their perceived value among local visitors remains underexplored in Southeast... Urban forest parks deliver a wide spectrum of ecosystem services that support biodiversity,climate regulation,and public well-being;however,their perceived value among local visitors remains underexplored in Southeast Asia.This study investigates visitor perceptions and economic valuation of ecosystem services at Mount Pulai Forest Eco Park in Johor,Malaysia.Grounded in the Total Economic Value(TEV)framework and ecosystem service theory,the research employed a structured on-site survey of 392 visitors and applied the Contingent Valuation Method(CVM)to assess awareness,appreciation,and willingness-to-pay(WTP)for forest conservation.Findings revealed that visitors highly valued regulating services,such as air purification and flood mitigation(mean≈4.3/5),and supporting services,like biodiversity(mean≈4.2/5),while provisioning services were rated lower(mean≈2.8/5).Despite limited familiarity with ecological terminology,only 33%understood the term“ecosystem services”.In contrast,a substantial majority(79.1%)expressed WTP for conservation efforts,proposing an average annual contribution of MYR 51.32.Additionally,65%of respondents supported an entry fee model,suggesting a mean payment of MYR 3.07 per visit.These results underscore the economic and non-economic value that urban residents assign to forest benefits,offering new insights into conservation finance and public engagement.The study’s innovation lies in its integration of ecosystem perception with economic valuation in an urban forest setting,providing a replicable framework for sustainable park management across Southeast Asia. 展开更多
关键词 Ecosystem Services Urban Forest WILLINGNESS-TO-PAY Contingent Valuation Public Perception Sustainable Management
在线阅读 下载PDF
A scoping review of the perceptions and practices of pediatric nurses’toward family-centered care
11
作者 Haytham Mohammad Al-Oran Mahmoud Ayed Al-Frejat 《Frontiers of Nursing》 2025年第2期177-183,共7页
Objective:This article employs a scoping review methodology,integrates knowledge and information about current pediatric nurses'practices and perceptions regarding family-centered care in pediatric settings.Method... Objective:This article employs a scoping review methodology,integrates knowledge and information about current pediatric nurses'practices and perceptions regarding family-centered care in pediatric settings.Methods:Published articles were retrieved from databases including EBSCO host,PubMed,Springer,Science Direct,Ovid,and CINAHL between 2013 and 2023.Results:The finding shows a better understanding of pediatric nurses'perceptions of family-centered care in association with their clinical settings.However,the evidence indicates that integrating family-centered care components into health care services is difficult and confusing to nurses and is often not implemented in a clinical setting.As evidenced by this review,studies have consistently reported similar results;family-centered care was a good perception and understood by pediatric nurses as a concept but inconsistently used in a daily practice setting.Conclusions:This scoping review is the first phase in promoting a strategic plan to provide educational interventions for pediatric nurses to implement family-centered care in their daily practice settings.It's necessary to recognize pediatric nurses'perceptions and practices concerning family-centered care to provide optimal healthcare services in pediatric settings. 展开更多
关键词 family-centered care pediatric nurses pediatric nurse perception pediatric nurse practices
暂未订购
Incorporating Generative AI in EFL Writing:An Investigation into Students’and Teachers’Perceptions
12
作者 CAI Shu-yi YU Wei-tao 《Journal of Literature and Art Studies》 2025年第7期526-539,共14页
The advancement of generative AI has reshaped EFL education,particularly in EFL writing.This qualitative case study investigates the perceptions of Chinese college students and EFL teachers towards the integration of ... The advancement of generative AI has reshaped EFL education,particularly in EFL writing.This qualitative case study investigates the perceptions of Chinese college students and EFL teachers towards the integration of Gen AI in EFL writing.The research involved semi-structured interviews with 13 students and 10 EFL teachers.Thematic analysis,guided by the Technology Acceptance Model(TAM),was employed to analyze the qualitative data.The findings reveal the perceptions of students and teachers regarding the role of generative AI in EFL writing.Regarding usefulness,students appreciate Gen AI for reducing writing difficulty and enhancing efficiency,though some note that it may produce logical flaws and misinformation.Teachers share similar perceptions,but stress effectiveness depends on students’language level.Some teachers also advocate traditional writing initially to build foundational skills.On the ease of use,most students find it easy interacting with Gen AI but mention dialogical understanding challenges.Both students and teachers stress clear prompts are crucial,indicating“AI interaction literacy”should be part of teaching.Moreover,teachers worry that Gen AI’s ease of use may lead to over-reliance.These results reveal contradicting goals of using Gen AI:students value efficiency,while teachers focus on ability cultivation.These insights guide more effective integration of Gen AI in EFL writing education. 展开更多
关键词 Generative AI EFL writing Technology Acceptance Model(TAM) AI integration in education Perception
在线阅读 下载PDF
用音乐与语音揭示大脑奥秘——评戴安娜·多伊奇《音乐错觉与词语虚幻》
13
作者 李小诺 《星海音乐学院学报》 北大核心 2026年第1期154-161,共8页
文章从认知科学视角系统梳理了戴安娜·多伊奇著作《音乐错觉与词语虚幻》关于音乐错觉及其与语言感知关系的突破性研究成果:1.音乐听知觉重组:通过八度错觉、音阶错觉等实验揭示大脑对声音信息的自组织机制,提出并集中展现了听觉... 文章从认知科学视角系统梳理了戴安娜·多伊奇著作《音乐错觉与词语虚幻》关于音乐错觉及其与语言感知关系的突破性研究成果:1.音乐听知觉重组:通过八度错觉、音阶错觉等实验揭示大脑对声音信息的自组织机制,提出并集中展现了听觉系统遵循接近律、相似律等格式塔原则的感知现象;2.三全音感知双重性:通过跨地域实验证明语音环境(尤其是童年方言音高特征)会永久影响音乐音高感知;3.语音到歌声错觉转换特征:实验证实语音与音乐存在于同一感知连续体,并发现唱歌比说话激活更广泛的脑区网络;4.虚幻词产生机制:模糊声音刺激会因个人经验形成差异化感知,证明听觉信号会被记忆、情绪等主观因素重构。文章同时强调了多伊奇将实验心理学与传统音乐学、神经科学相结合的跨学科研究方法,及该研究对理解人类认知本质的深刻启示。 展开更多
关键词 音乐错觉 音乐感知 认知神经科学 听知觉重组 三全音感知 跨模态研究
在线阅读 下载PDF
内外部分组线索对数量感知分组化策略的影响:来自fMRI证据
14
作者 潘运 杨环瑜 +4 位作者 贾良智 朱俊 余方文 张頔 杨平 《心理学报》 北大核心 2026年第2期323-335,I0007,共14页
本研究采用数量估计任务结合fMRI技术,深入探究内部和外部分组线索分别对数量感知分组化策略的影响,揭示数量感知分组化策略的神经机制。结果发现,分组条件比未分组条件在左侧顶内沟、角回和额上回等与计算相关的脑区有更显著激活;外部... 本研究采用数量估计任务结合fMRI技术,深入探究内部和外部分组线索分别对数量感知分组化策略的影响,揭示数量感知分组化策略的神经机制。结果发现,分组条件比未分组条件在左侧顶内沟、角回和额上回等与计算相关的脑区有更显著激活;外部分组线索比内部分组线索在额中回和颞下回等与拓扑性质相关的脑区表现出更显著激活。结果表明,被试分组条件下更倾向于使用计算相关策略进行数量感知,且外部分组线索具有拓扑性质,支持了拓扑知觉理论。 展开更多
关键词 数量感知 分组化策略 分组线索 拓扑知觉理论 功能磁共振成像
在线阅读 下载PDF
基于SAM的水陆两栖环境感知微调策略与应用
15
作者 左哲 蓝鸿 +1 位作者 覃卫 王坤 《北京理工大学学报》 北大核心 2026年第1期20-28,共9页
针对水陆两栖无人平台在不确定环境中面临的高误报率及多感知任务整合困难的问题,本研究提出了一种基于分割一切模型(segment anything model,SAM)的多模型联合环境感知方法,实现了障碍物检测与水陆域分割的统一处理.具体而言,是将U-Net... 针对水陆两栖无人平台在不确定环境中面临的高误报率及多感知任务整合困难的问题,本研究提出了一种基于分割一切模型(segment anything model,SAM)的多模型联合环境感知方法,实现了障碍物检测与水陆域分割的统一处理.具体而言,是将U-Net和YOLOv8与SAM结合,U-Net和YOLOv8负责获取目标的粗略轮廓,而SAM通过其编码−解码结构实现进一步精细分割.此外,设计了专门的微调策略以实现联合训练,进一步提升了模型的性能.本研究还构建了专有数据集USV-Dataset,并开发了数据引擎以提高标注效率.为增强模型的泛化能力,采用了4个公开数据集与USV-Dataset进行混合训练,涵盖了多样化的场景和障碍物类别.实验结果表明,该方法实现了96.8%的mPA分割精度和10 FPS的推理速度,展现出良好的泛化能力,能够满足中低速两栖无人平台的实时环境感知需求. 展开更多
关键词 水陆两栖平台 环境感知 SAM 多模型融合
在线阅读 下载PDF
居民价值共创行为对游客口碑传播意愿的影响机制研究
16
作者 粟娟 彭艳丽 +1 位作者 覃雯 李威龙 《长江师范学院学报》 2026年第1期10-22,共13页
随着目的地居民参与旅游活动对旅游营销的贡献日益凸显,居民价值共创行为已成为重要研究议题。尽管学界对价值共创的关注不断增长,但关于居民价值共创行为如何影响游客口碑传播意愿的探讨仍较为有限。本研究基于社会交换理论,构建包含... 随着目的地居民参与旅游活动对旅游营销的贡献日益凸显,居民价值共创行为已成为重要研究议题。尽管学界对价值共创的关注不断增长,但关于居民价值共创行为如何影响游客口碑传播意愿的探讨仍较为有限。本研究基于社会交换理论,构建包含居民价值共创行为类型、社会感知与游客口碑传播意愿的理论框架,通过一项半结构化访谈和两项情境实验,分析居民价值共创行为对游客口碑传播意愿的作用机制。研究结果表明,在不同自我建构类型的游客中,居民价值共创主动行为与被动行为会引发不同程度的温暖感知与能力感知,进而影响游客口碑传播意愿的强度。本研究进一步拓展了刻板印象内容模型在营销传播领域的解释范围,并为合理引导目的地居民参与旅游活动提供了参考。 展开更多
关键词 价值共创 温暖感知 能力感知 自我构建 口碑传播
在线阅读 下载PDF
英语写作同伴评价中的深度感知表征实验研究
17
作者 李廉 祖大庆 《外语研究》 北大核心 2026年第2期67-75,F0003,共10页
英语写作同伴评价常采用数字分数作为表征媒介,但数字表征属于后天习得的能力,数学背景、发展成熟期等因素可能影响其信度。研究引入成熟期更早的深度感知作为替代表征媒介,开发立体尺板式评分软件。40名大学生被分为平行组对60篇同伴... 英语写作同伴评价常采用数字分数作为表征媒介,但数字表征属于后天习得的能力,数学背景、发展成熟期等因素可能影响其信度。研究引入成熟期更早的深度感知作为替代表征媒介,开发立体尺板式评分软件。40名大学生被分为平行组对60篇同伴作文进行整体评分,分别采用数字表征与深度感知表征,比较评分结果与标准参照分的误差和相关性、评分员间信度和评分员内部信度。结果表明深度感知表征能提高评分准确率,显著改善评分员间一致性及评分员内部稳定性。 展开更多
关键词 英语写作 同伴评价 深度感知 数字估计 表征方法
在线阅读 下载PDF
体系化作战下引信的地位与发展
18
作者 张合 于航 +1 位作者 戴可人 刘鹏 《探测与控制学报》 北大核心 2026年第1期1-8,共8页
体系化作战将单平台火力打击整合为基于网络信息系统的体系对抗,引信作为武器火力终端起爆控制的“中枢”,其地位从单纯的点状起爆装置跃升为作战体系的关键感知节点和决策执行节点,对杀伤链闭环效率与跨域协同能力有决定性影响。基于... 体系化作战将单平台火力打击整合为基于网络信息系统的体系对抗,引信作为武器火力终端起爆控制的“中枢”,其地位从单纯的点状起爆装置跃升为作战体系的关键感知节点和决策执行节点,对杀伤链闭环效率与跨域协同能力有决定性影响。基于“以伊战争”、“印巴战争”等战争形态对我军弹药引信发展的启示以及体系作战对弹药引信性能需求牵引为指引,通过分析武器系统信息化与网络化发展对体系化作战之间的依托关系,明确了体系化作战场景下弹药引信毁伤效能的地位,进而给出引信在体系化作战下所处的作用,并对体系化作战提出了未来引信功能提升的发展方向。 展开更多
关键词 体系化作战 精确火力 引信智能化 战场感知 多域协同
在线阅读 下载PDF
当代青年的AI风险感知:基于工作状况的群体差异及形塑机制
19
作者 张娟娟 何光喜 《中国青年研究》 北大核心 2026年第1期70-81,119,120,共14页
在人工智能技术深刻重塑就业格局大背景下,青年作为AI时代的数字“原住民”和受AI冲击最前沿的群体,其风险感知直接关系到技术的社会接受度与发展可持续性。本研究基于2025年一项全国青年抽样调查数据,系统分析了不同工作状况青年对AI... 在人工智能技术深刻重塑就业格局大背景下,青年作为AI时代的数字“原住民”和受AI冲击最前沿的群体,其风险感知直接关系到技术的社会接受度与发展可持续性。本研究基于2025年一项全国青年抽样调查数据,系统分析了不同工作状况青年对AI导致失业风险的感知差异及其形成机制。研究发现:风险感知呈现清晰的工作状况梯度,无业青年(48.4%)>体力职业(42.5%)>一般非体力职业(40.5%)>精英职业(38%)>在校学生(36.4%);群际分化主要通过“AI认知基础”与“社会经济地位感知”双重机制传导:教育水平低和对AI了解不足会放大风险感知,而职业预期悲观与生活压力大则构成更强心理传导路径;体力职业青年与无业青年受多重劣势叠加影响,一般非体力青年受职业预期影响程度较高,而在校学生则显现知识缓冲效应。本研究通过将心理预期与生活压力纳入分析框架,突破了传统技术接受模型的局限,为理解青年面对技术变革的复杂心态提供了新视角,并建议针对弱势群体强化生活保障与技能培训、对职场青年注重职业路径引导、对学生群体深化AI素养教育,为构建分层精准的社会支持体系提供了实证依据。 展开更多
关键词 青年群体 人工智能 失业风险感知 工作状况
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部