期刊文献+
共找到1,974篇文章
< 1 2 99 >
每页显示 20 50 100
An Empirical Study on the Reflective Feedback Model Based on Pedagogical Agents to Improve Students’ Problem-Solving Ability 被引量:1
1
作者 Hui-Lin Zhang Jun-Jie Yan +4 位作者 Jing Liu Zhuo-Cen Zou Qun-Fang Zeng Yu-Lu Jin Jian-Nan Wu 《教育技术与创新》 2025年第1期66-75,共10页
This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with ... This study constructs a reflective feedback model based on a pedagogical agent(PA)and explores its impact on students’problem-solving ability and cognitive load.A quasi-experimental design was used in the study,with 84 students from a middle school selected as the research subjects(44 in the experimental group and 40 in the control group).The experimental group used the reflective feedback model,while the control group used the factual feedback model.The results show that,compared with factual feedback,the reflective feedback model based on the pedagogical agent significantly improves students’problem-solving ability,especially at the action and thinking levels.In addition,this model effectively reduces students’cognitive load,especially in terms of internal and external load. 展开更多
关键词 pedagogical agent problem-solving ability reflective feedback
在线阅读 下载PDF
从Tech Insights公司被制裁看如何在激烈的国际竞争中合法使用技术情报
2
作者 彭靖里 《竞争情报》 2026年第2期2-9,共8页
在中美科技竞争加剧和全球半导体产业战略博弈日益深化的背景下,技术情报活动的边界与风险已成为国际社会高度关注的议题。2025年,中国商务部将加拿大公司Tech Insights及其关联实体列入“不可靠实体清单”,标志着中国在半导体领域的反... 在中美科技竞争加剧和全球半导体产业战略博弈日益深化的背景下,技术情报活动的边界与风险已成为国际社会高度关注的议题。2025年,中国商务部将加拿大公司Tech Insights及其关联实体列入“不可靠实体清单”,标志着中国在半导体领域的反制措施由硬件与设备层面进一步延伸至技术情报与信息流动层面。此举引发了业界和学术界的广泛讨论。本文以Tech Insights被制裁事件为切入点,在梳理其业务模式与发展轨迹的基础上,探讨其在芯片逆向工程和技术情报服务方面的做法如何偏离国际公认的商业规范和职业道德,并分析这些做法的深层驱动因素及其对全球半导体创新生态系统及产业链和供应链安全带来的不利影响。文章指出,在大国竞争持续升级和技术民族主义势头渐起的背景下,传统上被视为商业中立的技术情报活动正愈加被工具化,并被纳入战略竞争框架。在这种情况下,仅依靠市场机制不足以化解安全与发展之间日益加剧的矛盾。本文着眼于如何在日趋激烈的国际竞争环境中合法合规地开展技术情报活动,提出有针对性的政策建议。文章强调,必须加快建立符合全球化趋势、以互利原则为基础的国家级竞争情报国际监管框架,这将为维护公平竞争和促进国际科技合作提供关键支持,具有重要的现实意义和政策价值。 展开更多
关键词 Tech insights 技术情报 国际竞争 合法使用 风险
在线阅读 下载PDF
Chengdu’s Real Estate Market(2019-2024):An Integrated Framework for Data-Driven Insights and Policy Analysis
3
作者 HU Xiao WU Jing +1 位作者 WANG Yan JIANG Xinyi 《Cultural and Religious Studies》 2026年第1期26-42,共17页
This study integrates multiple sources of data(transaction data,policy text,public opinion data)with visualization techniques(such as heat maps,time-series trend charts,3D building brochures)to construct an analysis f... This study integrates multiple sources of data(transaction data,policy text,public opinion data)with visualization techniques(such as heat maps,time-series trend charts,3D building brochures)to construct an analysis framework for the Chengdu real estate market.By using the Adaptive Neuro-Fuzzy Inference System(ANFIS)prediction model,spatial GIS(Geographic Information System analysis)analysis,and interactive dashboards,this study reveals market differentiation,policy impacts,and changes in demand structure,thereby providing decision support for the government,enterprises,and homebuyers. 展开更多
关键词 Chengdu City real estate market data-driven insights policy analysis
在线阅读 下载PDF
Problem-Solving Based Intervention for Informal Caregivers: A Scoping Review 被引量:1
4
作者 Quanwan Tao Jun Zhang 《Open Journal of Nursing》 2019年第9期951-971,共21页
Background: Caregiving for someone is a huge task for informal caregivers. The caregiving role is often challenging and overwhelming for them. Stress, burden, and depression have been frequently identified as the nega... Background: Caregiving for someone is a huge task for informal caregivers. The caregiving role is often challenging and overwhelming for them. Stress, burden, and depression have been frequently identified as the negative caregiving experiences. This systematic review synthesized the available evidence for the problem-based intervention provided for caregivers as there is little insight about the effects of problem-based intervention on caregivers. Objectives: To describe: 1) the design of problem-solving intervention;2) the effects of problem-solving intervention for caregiver outcomes. Methods: This review followed Arksey and O’Malley’s methodological framework for conducting scoping reviews which entail setting research questions, selecting relevant studies, charting the data and synthesizing the results. FPRISMA guidelines were adopted and several databases were searched including MEDLINE;EMBASE;web of science. This review contains literature from 2012 to 2019 on problem-solving-based intervention which intended to caregivers. Results: 41 publications representing 27 unique problem-based interventions. Problem-solving-based intervention has different extent effects on caregiver emotion status, burden and quality of life. Conclusions: Problem-solving intervention is promising in caregiver intervention which could reduce caregiver depression, anxiety and burden. 展开更多
关键词 INFORMAL CAREGIVER problem-solving Scoping REVIEW
暂未订购
Making bridges between preclinical and clinical insights into age-related cognitive decline 被引量:1
5
作者 David VC Brito Clévio Nóbrega 《Neural Regeneration Research》 SCIE CAS 2025年第8期2321-2322,共2页
With people living longer,the societal impact of age-related cognitive decline is becoming more pronounced(Crimmins,2015).Thus,it is increasingly important to comprehend the cognitive shifts linked to aging-whether th... With people living longer,the societal impact of age-related cognitive decline is becoming more pronounced(Crimmins,2015).Thus,it is increasingly important to comprehend the cognitive shifts linked to aging-whether they are physiological or pathological. 展开更多
关键词 BRIDGES BECOMING insight
暂未订购
UBM与ArcScan Insight 100对近视患者眼前节生物学参数测量的一致性分析
6
作者 孙瑞瑞 李金 +3 位作者 曹可盈 张炜晨 谢梦 庞辰久 《中华实验眼科杂志(中英文)》 北大核心 2025年第9期818-825,共8页
目的评估超声生物显微镜(UBM)与ArcScan Insight 100测量眼前节生物学参数的重复性,比较2种仪器测量结果的一致性。方法采用横断面研究方法,选取2023年3—5月于河南省立眼科医院行V4c有晶状体眼人工晶状体植入术的近视患者70例70眼,先... 目的评估超声生物显微镜(UBM)与ArcScan Insight 100测量眼前节生物学参数的重复性,比较2种仪器测量结果的一致性。方法采用横断面研究方法,选取2023年3—5月于河南省立眼科医院行V4c有晶状体眼人工晶状体植入术的近视患者70例70眼,先后采用ArcScan Insight 100和UBM测量两侧房角隐窝间距(ATA)、水平睫状沟-睫状沟距离(STS)、前房深度(ACD)、晶状体矢高(CLR)、前房宽度(ACW)、睫状突内径(CBID)、前房角度(ACA)、睫状突角(TCA)和最大睫状体厚度(CBTmax),重复测量3次,使用组内相关系数(ICC)分别评估UBM与ArcScan Insight 100的眼前节生物学测量重复性,采用Bland-Altman一致性检验评估2种仪器之间的一致性。结果UBM与ArcScan Insight 100测量的ATA、STS、ACD、CLR、ACW、CBID、ACA、TCA和CBTmax的重复性均较好(均ICC>0.9)。UBM与ArcScan Insight 100的ACD、ACW、ACA测量值比较,差异均无统计学意义(t=0.696、-1.025、-1.447,均P>0.05);UBM的ATA、STS、CLR和CBID测量值小于ArcScan Insight 100,TCA和CBTmax测量值大于ArcScan Insight 100,差异均有统计学意义(t=-8.586、-12.551、-4.481、-4.420、4.535、7.812,均P<0.05)。UBM与ArcScan Insight 100的ATA、STS、ACD、CLR、ACW、CBID和CBTmax测量差值分别为0.38、0.47、-0.01、0.07、0.30、0.26和-0.21 mm,95%LoA分别为(-0.34,1.10)、(-0.15,1.09)、(-0.28,0.26)、(-0.20,0.35)、(-0.33,0.93)、(-0.71,1.23)和(-0.64,0.23)mm,一致性较好;ACA和TCA测量差值分别为2.26°和-7.81°,95%LoA值分别为(-23.36°,27.89°)、(-36.05°,20.43°),一致性较差。UBM与ArcScan Insight 100的ACD测量值呈强正相关(r=0.827,P<0.05),二者的ATA、STS、CLR、ACW和CBID测量值均呈中等正相关(r=0.678、0.749、0.617、0.765、0.519,均P<0.05),而ACA、TCA和CBTmax测量值均无明显相关性(r=0.270、0.032、0.178,均P>0.05)。结论ArcScan Insight 100与UBM测量眼前节生物学参数的重复性较好;可能受到自身调节影响,2种仪器测量ACA、TCA和CBTmax的一致性较差,但测量ATA、STS、ACD、CLR、ACW和CBID的一致性良好,可相互替代。 展开更多
关键词 超声生物显微镜 ArcScan insight 100 眼前节 有晶状体眼后房型人工晶状体 一致性
暂未订购
Impact of self-directed learning readiness and learning attitude on problem-solving ability among Chinese undergraduate nursing students
7
作者 Ru-Zhen Luo Xiao-Hong Zhang +1 位作者 Chun-Mei Zhang Yan-Hui Liu 《Frontiers of Nursing》 CAS 2019年第2期143-150,共8页
Objective: To explore the effects of self-directed learning readiness and learning attitude on problem-solving ability among Chinese undergraduate nursing students. Methods: A convenience sampling of 460 undergraduate... Objective: To explore the effects of self-directed learning readiness and learning attitude on problem-solving ability among Chinese undergraduate nursing students. Methods: A convenience sampling of 460 undergraduate nursing students was surveyed in Tianjin, China. Students who participated in the study completed a questionnaire that included social demographic questionnaire, Self-directed Learning Readiness Scale, Attitude to Learning Scale, and Social Problem-Solving Inventory. Pearson’s correlation analysis was performed to test the correlations among problem-solving ability, self-directed learning readiness, and learning attitude. Hierarchical linear regression analyses were performed to explore the mediating role of learning attitude. Results: The results showed that learning attitude (r=0.338, P<0.01) and self-directed learning readiness (r=0.493, P<0.01) were positively correlated with problem-solving ability. Learning attitude played a partial intermediary role between self-directed learning readiness and problem-solving ability (F=74.227, P<0.01). Conclusions: It is concluded that nursing educators should pay attention on students’ individual differences and take proper actions to inspire students’ self-directed learning readiness and learning attitude. 展开更多
关键词 UNDERGRADUATE NURSING students self-directed LEARNING READINESS LEARNING ATTITUDE problem-solving ABILITY China
暂未订购
Method and Apparatus for Creating Problem-Solving Complexes from Individual Elements
8
作者 Bernhard Mitterauer 《Advances in Bioscience and Biotechnology》 2014年第4期311-315,共5页
Based on the biological key-lock-principle common in various biological systems such as the human brain, this paper relates to a method and device for creating problem-solving complexes from individual elements that c... Based on the biological key-lock-principle common in various biological systems such as the human brain, this paper relates to a method and device for creating problem-solving complexes from individual elements that can be coupled with one another and that have different properties to solve problems. The problem solution can be carried out either serially with a large computer, or with several independent, hierarchically joined computers. In this system, an independent control unit that assumes a multitude of tasks and also acts as an interface with access to all participating computers, is assigned to each problem or object class according to the amount of potential problem-oriented solutions. Such a unit prepares the partial solutions found in its computer for the totality of the solutions computed in the associated computers, finally leading to a total problem solution. 展开更多
关键词 Key-Lock-Principle GEOMETRICAL ELEMENTS Computer System Composition problem-solving
在线阅读 下载PDF
Role of academic self-efficacy in the relationship between self-directed learning readiness and problem-solving ability among nursing students
9
作者 Xiao-Hong Zhang Li-Na Meng +4 位作者 Hui-Hui Liu Ru-Zhen Luo Chun-Mei Zhang Pei-Pei Zhang Yan-Hui Liu 《Frontiers of Nursing》 CAS 2018年第1期75-81,共7页
Objective: Problem-solving should be a fundamental component of nursing education because It is a core ability for professional nurses. For more effective learning, nursing students must understand the relationship be... Objective: Problem-solving should be a fundamental component of nursing education because It is a core ability for professional nurses. For more effective learning, nursing students must understand the relationship between self-directed learning readiness and problem-solving ability. The aim of this study was to investigate the relationships among self-directed learning readiness, problemsolving ability, and academic self-efficacy among undergraduate nursing students.Methods: From November to December 2016, research was conducted among 500 nursing undergraduate students in Tianjin, China,using a self-directed learning readiness scale, an academic self-efficacy scale, a questionnaire related to problem-solving, and selfdesigned demographics. The response rate was 85.8%.Results: For Chinese nursing students, self-directed learning readiness and academic self-efficacy reached a medium-to-high level,while problem-solving abilities were at a low level. There were significant positive correlations among the students' self-directed learning readiness, academic self-efficacy, and problem-solving ability. Furthermore, academic self-efficacy demonstrated a mediating effect on the relationship between the students' self-directed learning readiness and problem-solving ability.Conclusions: To enhance students' problem-solving ability, nursing educators should pay more attention to the positive impact of self-directed learning readiness and self-efficacy in nursing students' education. 展开更多
关键词 self-directed learning readiness problem-solving ability academic self-efficacy nursing undergraduates nursing students cross-sectional survey
暂未订购
Effects of Sex Differences and Problem-Solving Strategies on Digital Game Performance
10
作者 Chan-Li Lin 《Journalism and Mass Communication》 2012年第9期901-910,共10页
Problem-solving strategy i,,; a critical skill in inquiry-based learning. Several studies have investigated how to use learning games to improve inquiry abilities. However, not every learner favors this kind of approa... Problem-solving strategy i,,; a critical skill in inquiry-based learning. Several studies have investigated how to use learning games to improve inquiry abilities. However, not every learner favors this kind of approach. Thus, we need to examine how human factors affect learners' reactions to the use of a digital game to support inquiry-based learning. This study addressed this issue by developing a digital game, "Baking Town", and using the game to examine the effects of two central human factors, sex differences and problem-solving strategies, on students' performance. The results demonstrate that students' inquiry abilities were significantly improved after they participated in the digital game. The results also demonstrate that the digital game may be a feasible way to reduce differences between boys and girls in this domain. Finally, we used the findings to develop a framework that can be used to enhance our understanding of sex differences and the use of problem-solving strategies in the context of digital games. 展开更多
关键词 FACEBOOK digital game sex differences problem-solving strategies
在线阅读 下载PDF
Creative Problem-Solving and Music: Analyzing the Correlation between Music and Divergent Thinking Abilities
11
作者 Aidan Kang 《Journal of Behavioral and Brain Science》 2023年第11期199-205,共7页
This research paper delves into the connection, between problem-solving and music. It’s a topic that has piqued the interest of scholars in fields, including science and neuroscience. The study explores how music can... This research paper delves into the connection, between problem-solving and music. It’s a topic that has piqued the interest of scholars in fields, including science and neuroscience. The study explores how music can influence our ability to think divergently which is an aspect of creative thinking. It builds upon advancements in methods to investigate the relationship between music and divergent thinking aiming to uncover potential correlations. Doing it offers insights into the interplay between artistic expression and cognitive innovation. This research combines an analysis of existing literature with data collected from a group of participants shedding light on how music impacts our capacity for creative thinking. It demonstrates that music plays a role as a catalyst, for stimulating and enhancing thinking abilities. 展开更多
关键词 DREAM COGNITIVE Creative problem-solving Divergent Thinking Abilities
在线阅读 下载PDF
Circumstance Leading to Pregnancy and Problem-Solving Process of Unwanted Teenage Pregnancy in the Phetchaburi Province, Thailand
12
作者 Rapeepan Narkbubpha Angsinee Kansukcharearn Brusayarat Wongwiliyavat 《Sociology Study》 2013年第12期974-984,共11页
This descriptive qualitative study aims to understand circumstance leading to pregnancy and problem-solving process of unwanted teenage pregnancy in the Phetchaburi Province. A qualitative research design was used. Pa... This descriptive qualitative study aims to understand circumstance leading to pregnancy and problem-solving process of unwanted teenage pregnancy in the Phetchaburi Province. A qualitative research design was used. Participants were 15 unwanted pregnant teenagers, aged between 15 and 19 years. All participants were primiparous and interviewed at postpartum stage. A semi-structured in-depth interview was the main technique of data collection. Data was analyzed using the process of manifest content analysis. Five themes, nine categories, 19 subcategories emerged from the data analysis. The themes were: (1) circumstance leading to pregnancy was the failure of contraceptive use and lack of knowledge about reproductive health; (2) negative emotional reactions included worry about parents' rejection and being blamed by others; (3) boyfriend's reaction to the pregnancy had a big impact on teen girl's feelings toward the situation. The majority of the teenagers' pregnancies accepted a child in the womb. The couples did not consider termination of the pregnancy; (4) parent's seeking a solution to serve the family dignity by organizing wedding ceremony and collaboratively plans for the future; and (5) life changes after the pregnancy due to the strong concerns about being blamed by the society. Findings from this study suggest that teens should particiPate in sex education classes that are specific for teenagers to prevent becoming pregnant. Moreover, the educational program specific for the teenagers' needs should be established so that they can continue their pregnancy without quitting school. 展开更多
关键词 problem-solving process manifest content analysis unwanted teenage pregnancy
在线阅读 下载PDF
Emerging insights into the function of very long chain fatty acids at cerebellar synapses
13
作者 Martin-Paul Agbaga Mohiuddin Ahmad 《Neural Regeneration Research》 SCIE CAS 2025年第6期1709-1710,共2页
Very long chain-saturated and-polyunsaturated fatty acids(VLC-SFA and VLC-PUFA, respectively) are a functionally important class of fatty acids containing 28 carbons or more in their acyl chain. They are synthesized b... Very long chain-saturated and-polyunsaturated fatty acids(VLC-SFA and VLC-PUFA, respectively) are a functionally important class of fatty acids containing 28 carbons or more in their acyl chain. They are synthesized by the elongation of very long fatty acids-4(ELOVL4) enzyme, expressed mainly in the brain, retina, skin, testes, and meibomian gland, where these fatty acids are found(Agbaga et al., 2008). Further, these organs exhibit tissuespecific VLC-PUFA and VLC-SFA biosynthesis and incorporation into complex lipids for specific functions. In the brain, skin, and Meibomian glands, the ELOVL4 mainly makes VLC-SFA, which are incorporated into complex sphingolipids. In the retina, the ELOVL4 makes VLC-PUFA that are incorporated into phosphatidylcholine, that are critical for visual function, while in testes and sperm, the VLC-PUFA are incorporated into sphingolipids that are critical for fertility(Yeboah et al., 2021). 展开更多
关键词 FUNCTIONS function insight
暂未订购
Study on the Relationship Between College Students’ Self-Leadership and Career Preparation from the Perspective of Problem-Solving Skills
14
作者 Yiyun Zhang 《Journal of Contemporary Educational Research》 2023年第8期59-67,共9页
Based on the measurement of problem-solving skills,self-leadership,and career preparation,this paper collects 251 questionnaires from college students through online questionnaire survey.Through the analysis of the qu... Based on the measurement of problem-solving skills,self-leadership,and career preparation,this paper collects 251 questionnaires from college students through online questionnaire survey.Through the analysis of the questionnaire results,this paper aims to clarify the relationship between college students’self-leadership and career preparation from the perspective of problem-solving skills,in order to provide ideas for college students’future career path and development.The results showed that from the perspective of problem-solving skills,there is a positive correlation between self-leadership and career preparation,and self-leadership has a positive impact on career preparation. 展开更多
关键词 problem-solving skills SELF-LEADERSHIP Career preparation
在线阅读 下载PDF
上一页 1 2 99 下一页 到第
使用帮助 返回顶部