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Your conditions: 李玲
  • VR影响下的媒体融合和跨界融合及其应用分析

    Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》

    Abstract:随着先进技术的不断发展,VR技术应运而生,它作为新的技术形式对媒体行业产生了较大影响。VR技术应用于媒体融合和跨界融合,不仅符合现阶段媒体行业发展需要,还能促进提高VR技术利用率。本文首先对VR做了基本介绍,然后分析了其具体应用,以及实施媒介融合和跨界融合的必要性,最后具体探究了基于VR的媒介融合和跨界融合。

  • Bibliometric and Thematic Knowledge Map Analysis of Curriculum Ideological and Political Education Research in Universities

    Subjects: Library Science,Information Science >> Library Science submitted time 2023-10-08 Cooperative journals: 《知识管理论坛》

    Abstract: [Purpose/Significance] Analyzing and summarizing current situation in the field of curriculum ideological and political education research can provide reference for grasping the research focus in this field. [Method/Process] The research adopted a combination of qualitative and quantitative research methods, took the data of 946 literature in the field of curriculum ideological and political education published by undergraduate colleges in core journals from 2017 to 2021 as samples, standardized the key words of the literature, and combined the reading and judgment of the content of the literature, the literature in the field of curriculum ideological and political education were divided into three major research types of cognitive theory, methodological theory and practical theory and eight research themes of theoretical interpretation, ideological and political elements, teaching system, professional ideological and political education, classroom teaching, teacher team, evaluation system and planning and implementation. Using bibliometrics and VOSviewer software to further analyze the research trends in the field of curriculum ideological and political education, as well as the characteristics of various research types and research topics. [Result/ Conclusion] The research results show that the curriculum ideological and political education research has three characteristics: combining professional characteristics, taking great thought and politics education as the core and emphasizing collaborative education. On this basis, it puts forward three suggestions for curriculum ideological and political education research and practice: grasp the characteristic trend, base on the great thought and politics education and give full play to the collaborative advantages.

  • Analysis of the Technology New Media Operation Mode and Its Enlightenment to Library Mobile Knowledge Service Platforms

    Subjects: Library Science,Information Science >> Library Science submitted time 2023-10-08 Cooperative journals: 《知识管理论坛》

    Abstract: [Purpose/significance] Technology new media are the products of the combination of the technological information and new media communication tools. The innovation of contents, models and carriers are worth all kinds of knowledge service platforms’ reference. [Method/process] This paper selected the top ten new media of “Chinese Technology New Media Ranking in 2016” and combed the contents, communication channels, online and offline activities and profit models of the top ten media to analyze the characteristics of technology new media and the existing problems. [Result/conclusion] Library mobile knowledge service platforms should learn from these technology new media. In the future, library mobile knowledge service platforms should attract more users to take part in contributing knowledge on the basis of ensuring the content quality and form a model of information dissemination, online services and offline activities to make their own market competitiveness.

  • Present and Future of Global Information Literacy: In Review of the European Conference on Information Literacy

    Subjects: Library Science,Information Science >> Library Science submitted time 2023-08-27 Cooperative journals: 《图书情报工作》

    Abstract: [Purpose/significance] The paper reviews the European Conference on Information Literacy (ECIL) in the past five years, providing references for domestic scholars to understand the present situation and future trends of global information literacy. [Method/process] According to the author's experience of attending ECIL and conference materials & papers, the paper summarizes the conferences from the five aspects:the conference overview, the distribution of participating countries, the topics of the conference and the research hotspot, the various conference activities and the participating of Chinese scholars, to help domestic scholars understand the latest progress and the future development for information literacy. [Result/conclusion] The ECIL platform reflects the trend of global information literacy to some extent:focusing on the practical application,expanding the research field of information literacy education,extending more related concepts, enriching more target users and innovating new teaching process and means. The enthusiasm of Chinese scholars to participate in ECIL has been continuously improved. From the first two sessions, only scholars from Taiwan participated, but in 2017, scholars and postgraduates from mainland China participated in the ECIL in various ways. Scholars in related fields in the world have fully demonstrated the latest achievements and contributions made by Chinese universities and research institutes in the field of information literacy. Finally, it is recommended that the Chinese information literacy community draw on the advanced experience of ECIL in both content and form.

  • Research on the Progress of Scholarly Publishing Literacy Courses in Foreign University Libraries

    Subjects: Library Science,Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》

    Abstract: [Purpose/significance] With the increasing complexity of the publishing environment, scholarly publishing literacy has gradually become a new growth point of information literacy education in university libraries. This paper investigates and analyzes the situation and characteristics of scholarly publishing literacy courses in foreign university libraries, so as to provide references for the construction of scholarly publishing literacy courses in Chinese libraries.[Method/process] By the methods of network survey and literature survey, this paper selected 16 representative scholarly publishing literacy courses of foreign university libraries. Then it analyzed practical scholarly publishing literacy courses progress and characteristics from five aspects:the teaching content, form, atmosphere, team and evaluation.[Result/conclusion] Foreign university libraries have actively participated in the scholarly publishing literacy courses. The research cases show the rich tea, the diverse teaching forms, the active teaching atmosphere, the cooperative teaching team, and the sustainable teaching evaluation. Chinese libraries should fully learn from the experience of foreign university libraries in scholarly publishing literacy education and timely carry out scholarly publishing literacy courses.

  • The Practice of Flipping Classroom Teaching of Science and Technology Information Retrieval Course Based on Rain Classroom

    Subjects: Library Science,Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》

    Abstract: [Purpose/significance] Educational mode is facing a great change in the deep integration of learning technology and teaching. Actively adopting advanced teaching technology is the only way to reform and upgrade traditional curriculum. This paper summarizes the teaching practice of reversing the information retrieval course based on Rain Classroom, aiming at providing reference for other information literacy courses.[Method/process] Empirical research method is used to introduce the curriculum design from the aspects of teaching technology selection, teaching target orientation, learning time design, learning resources design, exercises design, classroom activities design, etc. The effect is evaluated by questionnaire survey.[Result/conclusion] The curriculum strengthens the practical application objectives, mobilizes students'enthusiasm for participation, strengthens the interaction between teacher and students, enriches the learning channels, cultivates students' autonomous learning ability and teamwork ability, and achieves good effectiveness.

  • Efficacy of Non-pharmacological Interventions to Improve Perimenopausal Insomnia Symptoms:a Network Meta-analysis

    Subjects: Medicine, Pharmacy >> Preventive Medicine and Hygienics submitted time 2023-07-06 Cooperative journals: 《中国全科医学》

    Abstract: Background  The presence of insomnia symptoms reduces the quality of life of perimenopausal women and increases their risk of developing other diseases. Currently,there are numerous non-pharmacological interventions available to improve perimenopausal insomnia symptoms,with disagreement as to which intervention is most effective. Objective  To evaluate the efficacy of non-pharmacological interventions in improving perimenopausal insomnia symptoms using a network meta-analysis. Methods In March 2022,Cochrane Library,PubMed,EmBase,Web of Science,CNKI,Wanfang Data Knowledge Service Platform,VIP and CBM were searched for the randomized controlled trials(RCTs)on the improvement of perimenopausal insomnia symptoms by non-pharmacological interventions from inception to March 2022. Two investigators independently screened the literature,extracted data,and evaluated the risk of bias of the included literature using the RCT bias risk assessment tool recommended by the Cochrane Manual of Systematic Review 5.1.0. A Bayesian network meta-analysis was performed on the overall response rate to the improvement of perimenopausal insomnia symptoms,as well as improvement in Pittsburgh Sleep Quality Index Scale(PSQI)score,Kupperman score and estradiol(E2)level under different non pharmacological interventions by using R 4.1.3 software and the GeMTC package. Results A total of 44 RCTs including 3386 patients were selected,involving 12 non-pharmacological interventions(moxibustion,electroacupuncture,acupoint pressing with beans,scraping,fire dragon pot,thumbtack needle,massage,warm acupuncture,bee acupuncture,acupoint embedding,music therapy,acupuncture). The results of meta-analysis showed that moxibustion,electroacupuncture,and acupuncture were superior to sedative-hypnotic western drugs in overall response rate to the improvement of perimenopausal insomnia symptoms(P<0.05),and moxibustion was identified as the most probable superior intervention. Moxibustion,electroacupuncture,scraping,and acupuncture were superior to sedative-hypnotic western drugs(P<0.05),moxibustion was more effective than warm acupuncture(P<0.05)in the improvement of PSQI score and identified as the most probable superior intervention. There was no significant difference in the improvement of Kupperman score and E2 level among different interventions(P>0.05),with scraping emerging and acupuncture as the most probable superior intervention,respectively. Conclusion  Current evidence demonstrates that moxibustion is superior in overall response rate to the improvement of perimenopausal insomnia symptoms and PSQI score in perimenopausal women,while scraping is superior in improving Kupperman score and acupuncture has advantages in improving E2 level,however,further validation of this conclusion is needed by conducting more high-quality studies.

  • Practical Exploration of Information Literacy

    Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》

    Abstract: [Purpose/significance] This paper summarizes the practices of information literacy carried out by National Science Library of Chinese Academy of Sciences for scientific research institutes and provides the best practice cases for scientific information literacy education.[Method/process] Based on the training service network, curriculum system, teaching staff, training platform, training methods, and propaganda way, this paper summarizes the characteristics of the practice and exploration of information literacy in scientific research frontline. Based on the exploration and practice in the epidemic and post epidemic period, and through questionnaire survey and analysis of expert opinions, this paper puts forward new strategies for the development of information literacy education in the front line of scientific research.[Result/conclusion] In the future, it is necessary to form a long-term mechanism for real-time communication for user's needs and promote the further innovation and development of information literacy through effective incentives, open cooperation, and exploration of crowdfunding.

  • Research and Enlightenment of Scholarly Publishing Literacy Resources of Publishers and Paper Editing and Proofreading Companies

    Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》

    Abstract: [Purpose/significance] Cooperation is the only way to develop scholarly publishing literacy education. Publishers, paper editing and proofreading companies and university libraries have established a close cooperative relationship to participate in the scholarly publishing literacy education. This paper systematically analyzed the scholarly publishing literacy resources with novel forms and cutting-edge contents accumulated by publishers and paper editing and proofreading companies, so as to provide more possibilities for multi-institutional cooperation in scholarly publishing literacy education. [Method/process] Using online survey method, this paper selected 7 well-known publishers and paper editing and proofreading companies. Then it analyzed 14 kinds of education resources which were designed by these companies, from three aspects of forms, content and learning methods. [Result/conclusion] Publishers and paper editing and proofreading companies have designed diversified types, structured content and interactive learning methods for scholarly publishing literacy resource. In the future, university libraries should fully cooperate with these companies to enrich the scholarly publishing literacy resources.

  • Beyond Information Literacy Education: the Changes and Prospect——15 Years' Practical Exploration in the University of Chinese Academy of Sciences

    Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》

    Abstract: [Purpose/significance] The change of information environment and the evolution of the research paradigm bring about new opportunities for information literacy education, so we need to rethink the traditional information literacy education, from traditional information literacy education to beyond information literacy education, and to promote the changes of information literacy education model.[Method/process] By analyzing the concepts and connotations of information, information literacy and the evolution, this paper made a comparative analysis of the two systems of information literacy education and beyond information literacy education, and based on the practice of University of Chinese Academy of Sciences, the structural changes of information literacy education were outlined.[Result/conclusion] The key of beyond information literacy education is that the purpose of information literacy education needs to be clear, the goal needs to be advanced, the perspective needs to be switched, and the effect needs to be reflected. The strategies are to train users from general ability to advanced ability, cross the disciplinary boundary of information literacy education, realize the reform of information literacy content and system, focus on the application of education and teaching techniques, develop the appropriate context of beyond information literacy education, and improve the spatial configuration of beyond information literacy.

  • Preparation and Microwave Absorption Properties of Cenospheres-Barium Ferrite Composites

    Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《材料研究学报》

    Abstract: The magnetic composites with low density of cenospheres-barium ferrite were prepared by a sol-gel self-propagating combustion technology. The morphology, structure, electromagnetic properties and microwave absorption properties of the composite powders were characterized by the scanning electron microscope, thermogravimetry-differential scanning calorimetry, X-ray diffraction, vibrating sample magnetometer and vector network analyzer. The results show that cenospheres were covered with barium ferrite coating of ca 5 nm to 15 nm in thickness. The size of barium ferrite coated particles is less than 60 nm. In addition, it is found that the composites are composed of barium ferrite, hematite, minor mullite and quartz, and the magnetic properties of the composite material could be enhanced with the increasing mass ratio of barium ferrite to cenospheres. Furthermore, the samples exhibit better dielectric loss and magnetic loss properties within a frequency range from 2 GHz to 18 GHz. The maximum reflection loss of the composite material of 1.5 mm in thickness reaches -29.2 dB at 14.2 GHz and the bandwidth for reflection loss of -10 dB is 4.5 GHz.

  • 言语工作记忆内容在语义水平的注意捕获

    Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》

    Abstract: Previous studies have showed that information held in working memory (WM) can guide or capture attention during visual search in a relatively automatic way, even when it is irrelevant and detrimental to current task performance. Some researchers have proposed that the semantic match between WM contents and distractors could also capture attention, as well as the perceptual match. As we known, the verbal WM contents can be stored in the visual and auditory inputs. Even though the automatic influence of visual verbal WM on visual attention have been demonstrated, it remains unknown whether the auditory verbal WM could automatically capture attention. Therefore, it is necessary to investigate the attention guidance by the verbal WM contents. The present study included two experiments to explore the questions presented above. In Experiment 1, the memory item was a verbal Chinese character that presented visually, denoting a color, such as “红”. The participants were instructed to remember the word and avoid the potential distractors. Subsequently, they completed a visual search task, in order to test whether the verbal WM contents could guide attention. The results showed that, compared with the control condition, the visual search RTs were longer in the perceptual-matching and semantic-matching conditions, and the same as the RTs in the fastest trials. With the memory item that never matched the target in the search task, we suggested that the verbal WM contents that were presented visually (vis-VWM) could capture attention at perceptual and semantic levels automatically. In Experiment 2, the memory item was presented by the auditory inputs via the headphones (audi-VWM). The results showed that the visual search RTs in the semantic-matching condition were shorter than RTs in the control and perceptual-matching conditions, and there was no significant difference in the other conditions. Meanwhile, compared the shortest RTs across the different conditions, the results showed that the RTs in the semantic-matching condition were longer than in the control condition, which suggested that the aurally presented verbal WM could capture attention at the semantic level in the fastest response trials. In conclusion, the present study demonstrated that the verbal working memory that presented visually could automatically capture attention at both perceptual and semantic levels, and also verified the hypothesis that the attention capture effect would occur at the early stages of attention. However, the contents of verbal working memory would always capture attention at the earlier processing stage and could only be rejected at the later processing stage when the contents were aurally presented. Due to the modality specificity, attentional resources would be distributed to different sensory modalities. The memory-matching distractors could be rejected at the later processing stage because of there were the sufficient cognitive resources.

  • 基于SEBAL模型的疏勒河流域蒸散发估算与灌溉效率评价

    Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2020-11-19 Cooperative journals: 《干旱区地理》

    Abstract:我国西北干旱区内陆河流域水资源匮乏,水资源利用主要用于农业生产,准确估算内陆河流 域蒸散发与农业灌溉效率,对研究内陆河流域气候变化和水资源合理利用具有重要作用。利用基于地表能量平衡方程的SEBAL模型,对2017—2018年疏勒河流域蒸散量进行定量估算与时空分布特征分析,并结合降水量与净灌溉水量数据,对疏勒河流域昌马灌区的年内灌溉水有效利用系数进行估算。结果表明:(1)疏勒河流域2017—2018年日均ET呈单峰变化趋势,最大值为6月的5. 03 mm·d-1,最小值为12月的0. 55 mm·d-1,并存在明显的空间分布差异。(2)疏勒河流域四季ET差异显著,夏季ET达到最高的201. 83 mm,春秋次之,冬季最低为53. 92 mm;ET由东南向西北逐渐减小,流域上游ET明显高于中下游地区。(3)昌马灌区各灌溉时段不同的灌溉水量造成了各灌季蒸散量的差异,灌区ET高值区主要分布在中部与东南部,低值区主要分布在西北部和灌区边缘。(4)昌马灌区年内灌溉水有效利用系数呈下降趋势,其中春灌、夏灌、秋灌和冬灌分别为0. 76、0. 71、0. 69和0. 55,年 均灌溉水有效利用系数为0. 67。

  • 呕吐毒素对IPEC-J2细胞凋亡的影响

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:本研究以IPEC-J2细胞为材料,研究不同浓度和时间处理下呕吐毒素(DON)对猪空肠上皮细胞凋亡的影响。通过CCK-8试剂盒检测细胞增殖毒性,筛选出合适的DON作用时间(6、12、24 h)。通过低浓度(200 ng/mL)和高浓度(2 000 ng/mL)DON分别作用IPEC-J2细胞6、12、24 h,检测DON对细胞有丝分裂周期和细胞早期凋亡的影响。结果表明:1)DON对IPEC-J2细胞生长有明显抑制作用,200和2 000 ng/mL DON浓度下,48和72 h的细胞存活率显著低于24 h(P<0.05);2 000 ng/mL DON浓度下,72 h的细胞存活率显著低于48 h(P<0.05)。2)不同DON浓度对细胞周期影响不同,低浓度DON主要作用于细胞有丝分裂S期,干扰DNA的复制;而高浓度DON主要作用于细胞有丝分裂G2/M期,干扰有关酶与纺锤丝蛋白质的合成。3)DON作用6 h,低浓度DON组和高浓度DON组早期凋亡率和总凋亡率显著高于对照组(P<0.05);DON作用12 h,高浓度DON组早期凋亡率和总凋亡率显著高于对照组和低浓度DON组(P<0.05)。由此可见,DON抑制了IPEC-J2细胞增殖,低浓度DON使细胞有丝分裂停留在S期,高浓度DON使细胞有丝分裂停留在G2/M期。DON促使细胞早期凋亡,使总凋亡率上升,且促凋亡作用随DON浓度升高而增强

  • 科技新媒体运营模式及其对图书馆移动知识服务平台的启示

    Subjects: Library Science,Information Science >> Library Science submitted time 2017-12-29 Cooperative journals: 《知识管理论坛》

    Abstract:[目的/意义]科技新媒体是科技信息服务和新媒体传播手段结合的产物,在内容、模式和载体的创新等方面都值得各类知识服务平台借鉴学习。[方法/过程] 选取《2016中国科技新媒体排行榜》中影响力排名前10名的科技新媒体,对其内容来源、传播渠道、线上与线下活动开展情况及盈利模式进行梳理和分析,揭示科技新媒体呈现的特点及存在问题。[结果/结论]图书馆移动知识服务平台应借鉴科技新媒体,在保证内容质量的基础上吸引更多的用户参与内容建设,形成传播资讯、线上服务与线下活动三位一体的平台,形成自己的市场竞争力 。

  • 比利时布鲁盖尔研究所的基本理念、运行机制和发展态势

    Subjects: Library Science,Information Science >> Information Science submitted time 2017-11-05 Cooperative journals: 《智库理论与实践》

    Abstract: [Purpose/significance] This paper aims to investigate the core value, the operation mechanism and the developmental stance of Bruegel, the top international economics think tanks in the world, and to offer positive references to the construction of Chinese new think tanks.[Method/process] This paper adopted the case study as the main research method and collected data by literature review and website investigation and basically from the latest Bruegel Annual Report and the Global Go To Think Tank Index Report.[Result/conclusion] Despite its 10-year-old young age, Bruegel has been one of the most important think tanks in the economics area both in Europe and around the world. This benefits from its solid core values, effective operation mechanism, international research team, specific research areas and high level policy impact.

  • 比利时布鲁盖尔研究所的基本理念、运行机制和发展态势

    Subjects: Library Science,Information Science >> Information Science submitted time 2017-07-13 Cooperative journals: 《智库理论与实践》

    Abstract:[目的 /意义]解读和剖析国际经济政策顶级智库——比利时布鲁盖尔研究所的基本理念、运行机制和发展态势,可以为我国推进中国特色新型智库建设提供参考和借鉴。[方法 /过程]采用案例研究方法,主要通过文献调研和网站调研收集资料,援引布鲁盖尔研究所发布的年度报告,并参考国际权威的智库排名报告,对布鲁盖尔研究所的历史和现状进行考察。[结果 /结论]布鲁盖尔研究所从创立至今才走过短短10余年时间,现已成为欧洲和全球经济领域的顶级智库。这得益于其坚实的发展理念、高效的运行机制、国际化的研究团队、精准的研究定位和高水平的政策影响力。