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Challenges and Potentials of Implementing Discussion-Based Instruction in Elementary and Middle School Classrooms:An Interview With Catherine Snow at Harvard Graduate School of Education
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作者 Ziyun Deng Jingyi Xu +3 位作者 Yinan Jiang Yoo Jin Choi Suchakrey Koomplee Yu Ye 《ECNU Review of Education》 2025年第2期447-454,共8页
In the classroom,teachers usually find that students fail to remain focused and think actively.This relatively low classroom participation also affects students'reading and writing abilities.Therefore,it has been ... In the classroom,teachers usually find that students fail to remain focused and think actively.This relatively low classroom participation also affects students'reading and writing abilities.Therefore,it has been a common concern of educational researchers and practitioners worldwide to understand how students'initiative can be stimulated and how students can be fostered to become self-driven readers,thinkers,and writers.Catherine Snow is an expert on language and literacy development in children. 展开更多
关键词 Class participation discussion-based instruction literacy
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Chinese High School Students AI Competency Survey: Based on the UNESCO Students’ AI Competency Framework
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作者 Daina Lin Xiaoshu Xu Jia Liu 《教育技术与创新》 2025年第1期54-65,共12页
This study aims to investigate the current status of AI competencies among Chinese high school students using quantitative research methods.By integrating UNESCO’s AI Competency Framework for Students with China’s e... This study aims to investigate the current status of AI competencies among Chinese high school students using quantitative research methods.By integrating UNESCO’s AI Competency Framework for Students with China’s educational practices,a questionnaire was developed.Altogether,300 students from eight high schools joined the research.SPSS 26.0 was used for reliability and validity tests,exploratory factor analysis,and group difference analysis.The results show that the questionnaire has good reliability and validity(Cronbach’sα=0.974,KMO=0.912,Bartlett’s test of sphericity was significant with p<0.001,cumulative variance explained 72.0%).Besides,Chinese high school students’AI competencies exhibit a typical pattern of“strong in technology,weak in ethics,and insufficient in creativity”,with technical application ability(mean=3.7)significantly higher than ethical assessment(mean=3.0)and system design(mean=2.8).What’s more,students in the eastern region have significantly better overall competencies than those in the central and western regions(p<0.05),with the largest gap in the technical application dimension(mean difference=0.7)and the smallest gap in the ethical dimension(mean difference=0.3).The study recommends optimizing high school curricula by adding modules for ethical debates and interdisciplinary projects and promoting equitable distribution of educational resources.This research empirically supports global AI education standardization and offers a scientific basis for AI education policies and curriculum design in China’s high schools. 展开更多
关键词 high school students AI competency UNESCO AI competency framework
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Perceptions of sex education among college students:A case study of a medical school
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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
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The Situation with College Express Packaging Waste and Recycling Recommendations——Taking the Graduate School of the Chinese Academy of Social Sciences as an Example 被引量:7
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作者 ZHANG Wenjing 《Journal of Resources and Ecology》 CSCD 2019年第5期530-536,共7页
Questionnaires and interviews are employed in this paper to investigate and analyze the situation with respect to express packaging waste at the Graduate School of the Chinese Academy of Social Sciences(GCASS).The sur... Questionnaires and interviews are employed in this paper to investigate and analyze the situation with respect to express packaging waste at the Graduate School of the Chinese Academy of Social Sciences(GCASS).The survey results show that:(1)the campus receives a large number of express packages and there is,in turn,a considerable amount of packaging waste;(2)there are four main types of express packaging materials:paper packaging,plastic bags,wrapping tapes and package fillers;(3)neither the students nor the school perform well in the recycling of express packaging waste;(4)the samples investigated in this paper can be divided into four categories by cluster analysis,and the author infers from this that the colleges and universities with a large proportion of female students should pay more attention to the issue of recycling of express packaging waste.Several suggestions are presented based on the research results:(1)establishing a campus waste recycling system is the most efficient way to solve the problem of express packaging waste at GCASS;(2)we should advocate for green packaging and manage it from the source of waste generation because most of the express packaging material does not easily degrade naturally,and this represents a huge hidden danger to human health and the environment;(3)the school should cultivate student awareness of environmental protection.If education and penalties are implemented together,the recovery system will run better. 展开更多
关键词 COLLEGES express packaging RECYCLING waste China
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Improving innovation and entrepreneurship education in higher institutions: the impact of "Mass Entrepreneurship and Innovation" education on undergraduates' entrepreneurial intentions 被引量:1
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作者 ShaoYing Lu Sun Ye XiaoShu Xu 《教育技术与创新》 2024年第1期10-26,共17页
The exploration of the way"mass entrepreneurship and innovation"(MEI)education influences students'aspirations to become entrepreneurs has grown into an important area of analysis in studies related to h... The exploration of the way"mass entrepreneurship and innovation"(MEI)education influences students'aspirations to become entrepreneurs has grown into an important area of analysis in studies related to higher education.This research intends to examine the consequences of MEI education on students'tendency towards entrepreneurship,and to put forward methods for augmenting the teaching of innovation and entrepreneurship in private higher educational establishments.To achieve this objective,questionnaires and semi-structured interviews were employed in the study,which involved a total of 197 students and five education experts.The statistical analysis of the questionnaire data revealed that MEI education was positively related to students'entrepreneurial intentions,and that both entrepreneurial experience and family entrepreneurial background played moderating roles in this relationship.The interview findings indicated that private universities could enhance educational reforms by designing talent training programs,developing diversified curricula,and developing more professional entrepreneurial platforms to encourage students'entrepreneurial intentions.This study offers fresh insights for improving and perfecting the mechanism of innovation and entrepreneurship education in private universities. 展开更多
关键词 Private universities Mass Entrepreneurship and Innovation MEI education entrepreneurial intention
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The Development of a Feeding Coparenting Scale for Japanese Parents of Fifth- and Sixth-Grade Elementary School Children
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作者 Maiko Yasuzato Tae Kawahara +2 位作者 Yuichi Nakayama Cin Cin Tan Akemi Yamazaki 《Open Journal of Nursing》 2024年第1期27-39,共13页
Aim: Recently, the role of feeding coparenting has gained attention in the child eating research field. The Feeding Coparenting Scale (FCS), a measure of how caregivers interact with their partners when feeding their ... Aim: Recently, the role of feeding coparenting has gained attention in the child eating research field. The Feeding Coparenting Scale (FCS), a measure of how caregivers interact with their partners when feeding their children was developed in the United States in 2019. However, there is no valid and reliable measure to assess feeding coparenting among caregivers of school-aged children in Japan. Therefore, this study aimed to develop a Japanese version of the FCS (FCS-J) questionnaire for caregivers with school-aged children. Methods: This was a web-based cross-sectional survey completed by caregivers of children aged 10-12 years. A preliminary survey using interviews and a web-based survey was conducted and found that the translated items of the FCS into Japanese were understandable to Japanese people. The developed survey was administered to parents of children at an elementary school. The reliability of the survey was assessed using both test-retest reliability and internal consistency analysis. Exploratory factor analysis was used to test construct validity, and known population validity was examined in relation to attributes, marital satisfaction, and feeding tasks. Results: Findings with 135 parents of school-aged children showed good internal reliability and validity of the FCS-J. The mean score for the overall FCS-J score was 46.2 (SD = 6.2), with Cronbach’s α of 0.72. For the subscales, Cronbach’s α ranged from 0.75 to 0.79. In sum, the present study’s results support the three-factor structure of the FCS in Japanese caregivers in Japan. Conclusions: The developed FCS-J was found to have a certain degree of reliability and validity. In this study, a Japanese version of the FCS-J was developed. . 展开更多
关键词 CHILD Coparenting PARENTS Feeding Coparenting
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晚二叠世全球海洋生态系统逐步坍塌与缺氧的可能联系 被引量:2
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作者 何卫红 吴攸攸 +5 位作者 张克信 铃木纪毅 肖异凡 杨廷禄 吴琛 黄亚飞 《地球科学》 北大核心 2025年第3期983-999,共17页
一般认为二叠纪末生物大灭绝持续的时间为3~6万年.然而,越来越多的研究显示在生物灭绝高峰期到来之前存在着环境危机预警信号,但相关研究仍然较少.本文聚焦于大灭绝全过程,包括灭绝高峰期到来之前、灭绝高峰期以及大灭绝之后残存期生物... 一般认为二叠纪末生物大灭绝持续的时间为3~6万年.然而,越来越多的研究显示在生物灭绝高峰期到来之前存在着环境危机预警信号,但相关研究仍然较少.本文聚焦于大灭绝全过程,包括灭绝高峰期到来之前、灭绝高峰期以及大灭绝之后残存期生物与环境的变化,揭示海洋生态系统坍塌的过程.通过对全球30个海相剖面的化石和古环境记录综合研究,结果表明:(1)深水环境(包括远洋环境、深水陆架、深水盆地和台地边缘斜坡)生态系统衰退发生较早,浅水环境(包括浅水碳酸盐台地、礁和浅水陆架)生态系统衰退发生较晚;(2)浮游生态系统的衰退早于底栖生态系统的衰退.全球海洋生态系统衰退的这种时空差异与最小含氧带(OMZ)的形成及扩展,并导致缺氧有关. 展开更多
关键词 海洋生态系统坍塌 最小含氧带 缺氧 晚二叠世 地层学 环境影响
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The Influence of Social Media on College Choice among Undergraduates Majoring in Big Data Management and Application in China:Taking Guilin University of Electronic Technology as an Example
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作者 Junchao Dong Joan P.Lazaro 《Journal of Contemporary Educational Research》 2024年第10期128-138,共11页
This study aims to investigate the influence of social media on college choice among undergraduates majoring in Big Data Management and Application in China.The study attempts to reveal how information on social media... This study aims to investigate the influence of social media on college choice among undergraduates majoring in Big Data Management and Application in China.The study attempts to reveal how information on social media platforms such as Weibo,WeChat,and Zhihu influences the cognition and choice process of prospective students.By employing an online quantitative survey questionnaire,data were collected from the 2022 and 2023 classes of new students majoring in Big Data Management and Application at Guilin University of Electronic Technology.The aim was to evaluate the role of social media in their college choice process and understand the features and information that most attract prospective students.Social media has become a key factor influencing the college choice decision-making of undergraduates majoring in Big Data Management and Application in China.Students tend to obtain school information through social media platforms and use this information as an important reference in their decision-making process.Higher education institutions should strengthen their social media information dissemination,providing accurate,timely,and attractive information.It is also necessary to ensure effective management of social media platforms,maintain a positive reputation for the school on social media,and increase the interest and trust of prospective students.Simultaneously,educational decision-makers should consider incorporating social media analysis into their recruitment strategies to better attract new student enrollment.This study provides a new perspective for understanding higher education choice behavior in the digital age,particularly by revealing the importance of social media in the educational decision-making process.This has important practical and theoretical implications for higher education institutions,policymakers,and social media platform operators. 展开更多
关键词 Social media Big Data Management and Application Undergraduate college choice Student decision-making behavior Chinese higher education
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Changes and Challenges of Graduate Education in the Era of Education Digitalization
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作者 Lijiang Yu Yunlong Ji 《Journal of Contemporary Educational Research》 2024年第11期107-112,共6页
With the wave of education digitalization,the reform of graduate education has gradually become an important issue in the reform of innovative personnel training.This paper discusses the necessity of the digital trans... With the wave of education digitalization,the reform of graduate education has gradually become an important issue in the reform of innovative personnel training.This paper discusses the necessity of the digital transformation of graduate education,analyzes the current difficulties and challenges,and proposes relevant reform suggestions in response to the current predicament,providing important references for graduate education reform and innovation. 展开更多
关键词 DIGITALIZATION Graduate education Education reform
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Application and Discussion on the Training of Innovative Graduate Talent Against the Background of“Double First-Class”Construction
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作者 Lijiang Yu Yunlong Ji 《Journal of Contemporary Educational Research》 2024年第12期150-156,共7页
Against the background of the“double first-class”construction,the training of innovative graduate talent has become an important issue in higher education.This article discusses the importance of the training of top... Against the background of the“double first-class”construction,the training of innovative graduate talent has become an important issue in higher education.This article discusses the importance of the training of top graduate innovative talent,analyzes the status of the training of top graduate innovative talent at home and abroad,and summarizes the current challenges in the training of graduate innovative talent in China.Lastly,this paper proposes relevant reform suggestions in response to problems in the training of innovative graduate talent,which provides important references for improving the quality of innovative graduate training. 展开更多
关键词 “Double first-class”construction Graduate students Cultivation of innovative talent
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Therapeutic potential of stem cells in subarachnoid hemorrhage 被引量:1
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作者 Hideki Kanamaru Hidenori Suzuki 《Neural Regeneration Research》 SCIE CAS 2025年第4期936-945,共10页
Aneurysm rupture can result in subarachnoid hemorrhage,a condition with potentially severe consequences,such as disability and death.In the acute stage,early brain injury manifests as intracranial pressure elevation,g... Aneurysm rupture can result in subarachnoid hemorrhage,a condition with potentially severe consequences,such as disability and death.In the acute stage,early brain injury manifests as intracranial pressure elevation,global cerebral ischemia,acute hydrocephalus,and direct blood–brain contact due to aneurysm rupture.This may subsequently cause delayed cerebral infarction,often with cerebral vasospasm,significantly affecting patient outcomes.Chronic complications such as brain volume loss and chronic hydrocephalus can further impact outcomes.Investigating the mechanisms of subarachnoid hemorrhage-induced brain injury is paramount for identifying effective treatments.Stem cell therapy,with its multipotent differentiation capacity and anti-inflammatory effects,has emerged as a promising approach for treating previously deemed incurable conditions.This review focuses on the potential application of stem cells in subarachnoid hemorrhage pathology and explores their role in neurogenesis and as a therapeutic intervention in preclinical and clinical subarachnoid hemorrhage studies. 展开更多
关键词 delayed cerebral ischemia early brain injury matricellular protein NEUROGENESIS stem cell therapy subarachnoid hemorrhage
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基于硅钢片均一化的超低场磁共振抗涡流Z梯度线圈设计方法
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作者 张宇翔 何为 +2 位作者 孔晓涵 宣亮 徐征 《电工技术学报》 北大核心 2025年第4期987-996,共10页
在超低场磁共振成像设备中,铁磁材料(抗涡流板、铁轭等)会对成像目标区域梯度磁场产生影响,并且在梯度线圈,特别是Z方向线圈工作时,这些金属部件中感应的涡流会导致成像伪影。为解决上述问题,该文提出一种针对永磁型超低场磁共振设备的... 在超低场磁共振成像设备中,铁磁材料(抗涡流板、铁轭等)会对成像目标区域梯度磁场产生影响,并且在梯度线圈,特别是Z方向线圈工作时,这些金属部件中感应的涡流会导致成像伪影。为解决上述问题,该文提出一种针对永磁型超低场磁共振设备的平面抗涡流Z梯度线圈设计方法。首先,对线圈外侧的铁磁材料进行等效简化,将高磁导率的复杂抗涡流板结构(硅钢片压叠而成)简化为均质磁性板结构以减少计算复杂度。然后,提出一种梯度线圈的参数化设计方法,通过对线圈结构进行参数化表达,直接对Z方向梯度线圈的最终绕线结构进行多目标快速优化,同时在线圈外侧设置反向电流绕线控制系统涡流效应。在保证线圈效率(200μT/(m·A))、最大非线性度(小于5%)的前提下,线圈外侧目标平面最大杂散磁场降低了52%。最后,通过有限元仿真与实验验证了模型简化的准确性与所设计Z梯度线圈的抗涡流性能。 展开更多
关键词 磁共振成像 梯度线圈 电磁场逆问题 铁磁结构简化
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In vivo direct neuronal conversion as a therapeutic strategy for ischemic stroke 被引量:1
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作者 Takashi Irie Taito Matsuda 《Neural Regeneration Research》 SCIE CAS 2025年第8期2309-2310,共2页
Stroke causes neuronal loss,which ultimately results in persistent neurological dysfunction.Globally,stroke was the third-leading cause of death and disability combined in all ages in 2019,after neonatal disorders and... Stroke causes neuronal loss,which ultimately results in persistent neurological dysfunction.Globally,stroke was the third-leading cause of death and disability combined in all ages in 2019,after neonatal disorders and ischemic heart disease.In that year,there were 12.2 million incident strokes,101 million prevalent strokes,and 143 million disability-adjusted life-years due to stroke. 展开更多
关键词 NEONATAL DEATH THERAPEUTIC
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C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway as a therapeutic target and regulatory mechanism for spinal cord injury 被引量:1
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作者 Xiangzi Wang Xiaofei Niu +4 位作者 Yingkai Wang Yang Liu Cheng Yang Xuyi Chen Zhongquan Qi 《Neural Regeneration Research》 SCIE CAS 2025年第8期2231-2244,共14页
Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory damage.The expression of the C-C motif chemokine ligand... Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory damage.The expression of the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis exhibits significant differences before and after injury.Recent studies have revealed that the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis is closely associated with secondary inflammatory responses and the recruitment of immune cells following spinal cord injury,suggesting that this axis is a novel target and regulatory control point for treatment.This review comprehensively examines the therapeutic strategies targeting the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis,along with the regenerative and repair mechanisms linking the axis to spinal cord injury.Additionally,we summarize the upstream and downstream inflammatory signaling pathways associated with spinal cord injury and the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis.This review primarily elaborates on therapeutic strategies that target the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the latest progress of research on antagonistic drugs,along with the approaches used to exploit new therapeutic targets within the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the development of targeted drugs.Nevertheless,there are presently no clinical studies relating to spinal cord injury that are focusing on the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis.This review aims to provide new ideas and therapeutic strategies for the future treatment of spinal cord injury. 展开更多
关键词 apoptosis C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway C-C motif chemokine receptor 2 antagonists chemokine ligand 2 chemokine receptor 2 inflammation macrophage microglia spinal cord injury therapeutic method
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Effects of Bifidobacterium lactis BLa80 on fecal and mucosal flora and stem cell factor/c-kit signaling pathway in simulated microgravity rats 被引量:1
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作者 Ping Zhang Ying Zhu +7 位作者 Pu Chen Tong Zhou Zhe-Yi Han Jun Xiao Jian-Feng Ma Wen Ma Peng Zang Ying Chen 《World Journal of Gastroenterology》 SCIE CAS 2025年第1期93-109,共17页
BACKGROUND Simulated microgravity environment can lead to gastrointestinal motility disturbance.The pathogenesis of gastrointestinal motility disorders is closely related to the stem cell factor(SCF)/c-kit signaling p... BACKGROUND Simulated microgravity environment can lead to gastrointestinal motility disturbance.The pathogenesis of gastrointestinal motility disorders is closely related to the stem cell factor(SCF)/c-kit signaling pathway associated with intestinal flora and Cajal stromal cells.Moreover,intestinal flora can also affect the regulation of SCF/c-kit signaling pathway,thus affecting the expression of Cajal stromal cells.Cajal cells are the pacemakers of gastrointestinal motility.AIM To investigate the effects of Bifidobacterium lactis(B.lactis)BLa80 on the intestinal flora of rats in simulated microgravity and on the gastrointestinal motility-related SCF/c-kit pathway.METHODS The internationally recognized tail suspension animal model was used to simulate the microgravity environment,and 30 rats were randomly divided into control group,tail suspension group and drug administration tail suspension group with 10 rats in each group for a total of 28 days.The tail group was given B.lactis BLa80 by intragastric administration,and the other two groups were given water intragastric administration,the concentration of intragastric administration was 0.1 g/mL,and each rat was 1 mL/day.Hematoxylin&eosin staining was used to observe the histopathological changes in each segment of the intestine of each group,and the expression levels of SCF,c-kit,extracellular signal-regulated kinase(ERK)and p-ERK in the gastric antrum of each group were detected by Western blotting and PCR.The fecal flora and mucosal flora of rats in each group were detected by 16S rRNA.RESULTS Simulated microgravity resulted in severe exfoliation of villi of duodenum,jejunum and ileum in rats,marked damage,increased space between villi,loose arrangement,shortened columnar epithelium of colon,less folds,narrower mucosal thickness,reduced goblet cell number and crypts,and significant improvement after probiotic intervention.Simulated microgravity reduced the expressions of SCF and c-kit,and increased the expressions of ERK and P-ERK in the gastric antrum of rats.However,after probiotic intervention,the expressions of SCF and ckit were increased,while the expressions of ERK and P-ERK were decreased,with statistical significance(P<0.05).In addition,simulated microgravity can reduce the operational taxonomic unit(OTU)of the overall intestinal flora of rats,B.lactis BLa80 can increase the OTU of rats,simulated microgravity can reduce the overall richness and diversity of stool flora of rats,increase the abundance of firmicutes in stool flora of rats,and reduce the abundance of Bacteroides in stool flora of rats,most of which are mainly beneficial bacteria.Simulated microgravity can increase the overall richness and diversity of mucosal flora,increase the abundance of Bacteroides and Desulphurides in the rat mucosal flora,and decrease the abundance of firmicutes,most of which are proteobacteria.After probiotics intervention,the overall Bacteroidetes trend in simulated microgravity rats was increased.CONCLUSION B.lactis BLa80 can ameliorate intestinal mucosal injury,regulate intestinal flora,inhibit ERK expression,and activate the SCF/c-kit signaling pathway,which may have a facilitating effect on gastrointestinal motility in simulated microgravity rats. 展开更多
关键词 Simulated microgravity Rat Intestinal flora Gastrointestinal motility Stem cell factor/c-kit signaling pathway
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Boosting high-performance in Zr-rich side protonic solid oxide electrolysis cells by optimizing functional interlayer 被引量:1
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作者 Chunmei Tang Ning Wang +3 位作者 Sho Kitano Hiroki Habazaki Yoshitaka Aoki Siyu Ye 《Green Energy & Environment》 SCIE EI CAS 2025年第1期150-160,共11页
Protonic solid oxide electrolysis cells(P-SOECs)are a promising technology for water electrolysis to produce green hydrogen.However,there are still challenges related key materials and anode/electrolyte interface.P-SO... Protonic solid oxide electrolysis cells(P-SOECs)are a promising technology for water electrolysis to produce green hydrogen.However,there are still challenges related key materials and anode/electrolyte interface.P-SOECs with Zr-rich electrolyte,called Zr-rich side P-SOECs,possess high thermodynamically stability under high steam concentrations but the large reaction resistances and the current leakage,thus the inferior performances.In this study,an efficient functional interlayer Ba_(0.95)La_(0.05)Fe_(0.8)Zn_(0.2)O_(3-δ)(BLFZ)in-between the anode and the electrolyte is developed.The electrochemical performances of P-SOECs are greatly enhanced because the BLFZ can greatly increase the interface contact,boost anode reaction kinetics,and increase proton injection into electrolyte.As a result,the P-SOEC yields high current density of 0.83 A cm^(-2) at 600℃ in 1.3 Vamong all the reported Zr-rich side cells.This work not only offers an efficient functional interlayer for P-SOECs but also holds the potential to achieve P-SOECs with high performances and long-term stability. 展开更多
关键词 Functional interlayer Zr-rich side electrolyte Protonic solid oxide electrolysis cells Current density Faradaic efficiency
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使用卷积神经网络方法识别SDSS DR7Q中的FeLoBAL类星体
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作者 何子麒 傅煜铭 +1 位作者 吴学兵 何凌雪 《天文学报》 北大核心 2025年第3期112-125,共14页
铁低电离宽吸收线类星体(Fe Low-ionization Board Absorption Line Quasar,FeLoBALQ)是数量最稀少的类星体子类之一.该类型类星体的辐射将周围的物质猛烈吹开,形成强劲高速的外流,其中以铁为代表的低电离物质,吸收类星体的辐射,产生特... 铁低电离宽吸收线类星体(Fe Low-ionization Board Absorption Line Quasar,FeLoBALQ)是数量最稀少的类星体子类之一.该类型类星体的辐射将周围的物质猛烈吹开,形成强劲高速的外流,其中以铁为代表的低电离物质,吸收类星体的辐射,产生特征的低电离度铁元素宽线吸收谱.FeLoBALQ外流物质携带的能量之高,足以解释超大质量黑洞质量M与宿主星系核球速度弥散度σ_(*)的M-σ_(*)关系,同时有研究表明FeLoBALQ可能与星暴星系或星系主并合存在伴生关系.然而,迄今为止搜寻到的FeLoBALQ数量有限,难以从统计上验证上述理论.此研究计划在已有类星体大样本中开展大规模的搜寻工作,挖掘已发现类星体中的FeLoBALQ,为FeLoBALQ的进一步研究提供样本基础.使用深度学习中的卷积神经网络(Convolutional Neural Network,CNN)方法,将以往发现的FeLoBALQ光谱作为训练样本,对SDSS(Sloan Digital Sky Survey)DR7Q(Data Release 7 Quasar catalog)中、红移范围为0.8<z<2.125的共50931条类星体光谱进行鉴别,新搜寻到了160条FeLoBALQ光谱.研究发现FeLoBALQ的颜色比一般类星体更红,且以往发现的FeLoBALQ比新发现的稍微偏红;这些差异在蓝端更明显,在中红外波段差异则几乎消失.结合以往研究发现的FeLoBALQ,估计FeLoBALQ在该样本的该红移段内,占类星体总数的比例约为0.43%,此比例略高于以往研究,且可能依然偏小.今后希望将此方法扩展至更大样本如SDSS DR16Q(Data Release 16 Quasar catalog)以发现更多的FeLoBALQ,并使用大样本研究FeLoBALQ与宿主星系恒星形成、星系主并合的关系以及星系与中心超大质量黑洞的协同演化等问题. 展开更多
关键词 星系:活动 类星体:吸收线 方法:深度学习 星表
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Confined proton transport in water-containing layered manganese oxide electrodes 被引量:1
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作者 Wenwei Cai Feng Pan Shunning Li 《Chinese Journal of Structural Chemistry》 2025年第5期15-18,共4页
Understanding the proton dynamic behavior in inorganic materials has long been a topic of intense fascination[1],especially in the field of electrochemical energy storage[2].One of the examples is the research of prot... Understanding the proton dynamic behavior in inorganic materials has long been a topic of intense fascination[1],especially in the field of electrochemical energy storage[2].One of the examples is the research of proton transport in transition metal oxides,which dates back to 1971[3]when RuO_(2) was discovered to be capable of storing protons via reversible redox reactions[4].In aqueous electrolytes,the thin film RuO_(2) electrode exhibits a surface pseudocapacitive behavior[5],which could be modified by the structural water in its hydrated form due to the facile Grotthuss hopping mode of protons along the established hydrogen bonds inside the bulk phase[6].Soon later,Goodenough et al.reported the capacitor-like behavior of amorphous MnO_(2)·xH_(2)O electrode in an aqueous KCl electrolyte[7],and further studies on the hydrated MnO_(2) electrodes prepared by sol-gel processes have soon discovered that the intercalation of protons from aqueous electrolytes plays an indispensable role in the charge storage mechanism[8].In recent years,the research interest on rechargeable aqueous batteries has fueled the renaissance of mechanistic study of proton transport in transition metal oxides[9],which can operate as cathodes or anodes via a topotactic insertion mechanism similar to that in Li-ion batteries[10].However,due to the challenges for experimental detection of local chemical environments of the inserted protons,a comprehensive understanding of proton dynamic behavior in these electrodes remains largely lacking. 展开更多
关键词 transition metal oxideswhich storing protons inorganic materials thin film ruo proton transport reversible redox reactions understanding proton dynamic behavior electrochemical energy storage one
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Appearance consistency and motion coherence learning for internal video inpainting 被引量:1
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作者 Ruixin Liu Yuesheng Zhu GuiBo Luo 《CAAI Transactions on Intelligence Technology》 2025年第3期827-841,共15页
Internal learning-based video inpainting methods have shown promising results by exploiting the intrinsic properties of the video to fill in the missing region without external dataset supervision.However,existing int... Internal learning-based video inpainting methods have shown promising results by exploiting the intrinsic properties of the video to fill in the missing region without external dataset supervision.However,existing internal learning-based video inpainting methods would produce inconsistent structures or blurry textures due to the insufficient utilisation of motion priors within the video sequence.In this paper,the authors propose a new internal learning-based video inpainting model called appearance consistency and motion coherence network(ACMC-Net),which can not only learn the recurrence of appearance prior but can also capture motion coherence prior to improve the quality of the inpainting results.In ACMC-Net,a transformer-based appearance network is developed to capture global context information within the video frame for representing appearance consistency accurately.Additionally,a novel motion coherence learning scheme is proposed to learn the motion prior in a video sequence effectively.Finally,the learnt internal appearance consistency and motion coherence are implicitly propagated to the missing regions to achieve inpainting well.Extensive experiments conducted on the DAVIS dataset show that the proposed model obtains the superior performance in terms of quantitative measurements and produces more visually plausible results compared with the state-of-the-art methods. 展开更多
关键词 deep internal learning motion coherence spatial-temporal priors transformer network video inpainting
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Prevalence and risk factors of skeletal muscle loss and sarcopenia in patients with autoimmune pancreatitis 被引量:1
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作者 Takanori Sano Kazuhiro Kikuta +5 位作者 Ryotaro Matsumoto Tetsuya Takikawa Shin Hamada Shin Miura Kiyoshi Kume Atsushi Masamune 《Hepatobiliary & Pancreatic Diseases International》 2025年第4期396-403,共8页
Background:Previous studies have highlighted the frequent occurrence of sarcopenia in patients with pancreatic diseases,including chronic pancreatitis.We aimed to clarify the prevalence of skeletal muscle(SM)loss and ... Background:Previous studies have highlighted the frequent occurrence of sarcopenia in patients with pancreatic diseases,including chronic pancreatitis.We aimed to clarify the prevalence of skeletal muscle(SM)loss and sarcopenia,and their associations with clinical characteristics,bone mineral density,and pancreatic imaging findings in patients with autoimmune pancreatitis(AIP).Methods:This study included 114 patients with AIP treated at Tohoku University Hospital.The SM index was assessed using a bioelectrical impedance analysis device,grip strength was measured using a hand dynamometer,and bone mineral density was evaluated using dual-energy X-ray absorptiometry.Univari-ate and multivariate logistic regression analyses were used to analyze factors associated with SM loss and sarcopenia.Results:Among 114 patients,57(50.0%)had SM loss,31(27.2%)had reduced grip strength,and 27(23.7%)had both.Patients with SM loss were older and had a lower body mass index,weaker grip strength,higher Controlling Nutritional Status scores,and lower serum lipase and albumin levels compared to those without SM loss.Computed tomography scans revealed a higher prevalence of pancreatic parenchy-mal atrophy in patients with SM loss.Similar differences were observed between patients with sarcopenia and those without.Osteopathy was observed in 35.6%of patients with SM loss and 38.1%of those with sarcopenia,whereas only 4.1%of patients without SM loss had osteopathy.Low BMI(<21.0 kg/m^(2))was also found to be an independent risk factor for SM loss in multivariate analysis.Age>72 years,low BMI(<20.0 kg/m^(2)),and low serum lipase levels(<13 U/L)were independent risk factors for sarcopenia in multivariate analysis.Conclusions:SM loss and sarcopenia are prevalent in patients with AIP and are associated with aging,poor nutritional status,low serum lipase levels,and pancreatic parenchymal atrophy.In addition to the high risk of osteopathy,careful attention should be paid to maintain muscle health in AIP patients. 展开更多
关键词 Autoimmune pancreatitis IgG4-related diseases OSTEOPOROSIS Osteosarcopenia SARCOPENIA
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