基于自引网络和主路径分析的论文主题创新实证研究     

魏瑞斌 《图书情报工作》2018,62(3):64-70

[目的/意义]探讨如何从大量论文中快速发现相关论文,研究论文主题创新的方法,为研究者阅读和利用期刊论文提供参考。[方法/过程]在对论文主题创新和自引网络概念界定的基础上,提出研究论文主题创新的思路、方法和工具。以美国印第安纳大学在图书情报学领域的论文为例进行实证研究。[结果/结论]利用主路径分析可以快速从自引网络中发现由于引用而产生联系的论文,在此基础上可以进行主题创新分析。  相似文献   

网络舆情场中信息受众观点测度的机理及路径分析     

宋先智  黄微  高俊峰 《图书情报工作》2018,62(2):100-107

[目的/意义]整合定性与定量的舆情研究视角,统一多模态研究对象,实现网络舆情信息受众的观点测度,可修复网络舆情分析与治理的理论与实践裂痕。[方法/过程]通过引入网络舆情场的概念,对网络舆情信息受众、受众观点测度的内涵进行诠释,就网络舆情场与信息受众观点测度的逻辑关系加以辩证讨论。[结果/结论]提出网络舆情场内舆情受众观点测度机理和具体测度路径,为后续网络舆情场中的网络舆情信息分析、多维度信息受众观点测度,受众认知规律发现,网络舆情监督和管控限制等层面的研究做相应铺垫。  相似文献   

A new approach to explore the knowledge transition path in the evolution of science & technology: From the biology of restriction enzymes to their application in biotechnology     

Xiaojun Hu  Ronald Rousseau 《Journal of Informetrics》2018,12(3):842-857

In this contribution, we develop a new approach to explore the process of knowledge transition from discovery-oriented science to technological fields, via applications-oriented research, including a mediator set. This trajectory is referred to as the D-A-T trajectory. It is shown how it can be constructed and measures are proposed to characterize the relational strength among different environments (discovery oriented research, applications-oriented research and patents) and the speed of evolution. Our approach is illustrated by a case study of three fundamental restriction enzymes articles. Among other results we found that 387 patents cited 124 of the 988 articles (a share of 12.55%) in the mediator set. Defining the non-patent references (NPR) transition rate as the number of citing patents divided by the number of articles in the mediator set yields a value 0.392. Our results suggest that the D-A-T path acts as a backbone and reveals important “invisible contributions” of an original scientific work during its evolution from discovery oriented research to outside academia. Our contribution provides a useful tool for bridging the existing gap in detecting the transition of knowledge between science and technology.  相似文献   

Research universities on the ResearchGate social networking site: An examination of institutional differences,research activity level,and social networks formed     

Weiwei Yan  Yin Zhang 《Journal of Informetrics》2018,12(1):385-400

As one of the largest active academic social networking sites, ResearchGate (RG) has been utilized by scholars to share publications, seek collaborators, communicate work in progress, and build scholarly reputation. This study collects data from RG users from 61 U.S. research universities at different research activity levels, as categorized by the Carnegie Classification of Institutions of Higher Education, to examine the impact of institutional differences on RG reputational metrics. The results confirm that RG is a research-oriented academic social networking site that closely and realistically mirrors the research activity level of institutions. With an increase in the research activity level of a university, its affiliated RG users tend to have higher RG scores, more publications and citations, and more profile views and followers, while the average number of reads of their publications and followees tend to be lower and fluctuant. In addition, RG users primarily follow others from institutions of a higher research activity level, forming virtual social networks centered around esteemed institutions. The study suggests academic social networks can serve as indicators in evaluation of research activities among research institutions, and such sites can be helpful and credible for acquiring resources, keeping informed about research, and promoting academic influence.  相似文献   

全民健身国家战略背景下南京加快世界体育名城建设 的机遇与路径研究     

唐鹏  谢正阳  丁宏 《南京体育学院学报(社会科学版)》2016,(5):63-68

建设体育城市已成为许多国家或地区获取更大发展空间的战略性选择.基于全民健身上升为国家战略的总体背景,运用文献法、逻辑分析和城市规划理论等研究方法,通过对体育城市建设发展理论研究的深入分析,阐明了世界体育名城建设对南京提升人民生活品质、促进经济转型升级和提升城市国际影响力具有重要的战略意义,并分析了南京加快建设世界体育名城的基础条件和存在问题,最后提出引进重大赛事、提升体育参与度、培育体育龙头企业和品牌、发展青少年体育、深化体育管理体制改革等建设路径的设想,以期对我国其他体育城市建设有所启示和借鉴.  相似文献   

理解公共文化服务：资金、人才与市场化道路的分歧   总被引：1，自引：0，他引：1  

刘辉 《江西师范大学学报(哲学社会科学版)》2011,44(2):19-25

围绕公共文化服务建设,相关研究成果数量呈现快速增长趋势。但是关于推进公共文化服务的具体主张,则呈现出外在集中性、一致性与潜在矛盾性并存的格局。因此,在对相关研究成果特别是其主张进行梳理的基础上,揭示当前学界研究的主要观点及其内在的可能分歧或矛盾,对于推进公共文化服务研究及实践有着基础性作用。  相似文献   

Immigrant perpetrators in the news: A terror management approach to resultant hostility,perceived vulnerability,and immigration issue judgment     

Po-Lin Pan  Shuhua Zhou  Marceline Thompson Hayes 《Journal of International and Intercultural Communication》2017,10(3):219-236

This study found that mortality salience in TV news activated more hostile attitude toward the perpetrators and negative judgment on the immigration issue. Social group difference influenced news viewers’ immigration issue judgment, but did not affect their resultant hostility and perceived vulnerability. More negative attitudes emerged toward the immigration issue when immigrant perpetrators were portrayed negatively in the news. News viewers with exposure to mortality salience in TV news reported more negative toward immigrants. Exposure to mortality-related elements in TV news could lead to social conflicts that were viewed as a severe threat by U.S. government and policymakers.  相似文献   

我国龙狮运动可持续性发展战略研究——基于SWOT矩阵组合分析     

雷强  雷军蓉 《北京体育大学学报》2017,40(2):128-136

摘要：我国舞龙舞狮运动从民间节气活动走向竞技舞台已20多年来的发展，随着时代的发展，未来龙狮运动发展战略究竟怎样？主要采用文献资料法、访谈法和数理统计法等研究方法，引用SWOT态势分析法，对我国龙狮运动可持续性发展进程中自身强势和劣势、发展中存在的问题、未来面临的发展机会及外界影响因素进行分析，从宏观上为我国龙狮运动可持续发展提供一个崭新的视角。研究表明，中国龙狮运动可持续发展战略路径：1）优势-机会组合分析表明，利用学校教育资源，扩大度发展大中学校龙狮队伍建设，提升龙狮运动在青少年中的认知能力；加强龙狮教练员、裁判员的师资培养；2)劣势-机会组合分析表明，加大龙狮科研理论体系研究力度，提升我国龙狮运动的理论与实践并驾齐驱；利用网络+平台，加大推广和宣传龙狮运动力度；3)优势-威胁组合分析表明，加强国际间的交流与合作，进一步挖掘整理龙狮运动的时代内涵，加强对龙狮文化的保护和推广工作，完善现行的竞赛制度；4)劣势-威胁组合分析表明，龙狮走市场、产业等多元化渠道，建立完善的器材标准化，弘扬龙狮传统文化。有利于把握竞技龙狮发展的特点和规律，为我国竞技龙狮运动可持续性发展提供一定的参考依据。  相似文献   

一种在轨海上多运动舰船目标检测和跟踪方法     

矫腾章  胡玉新  吕鹏  张凯  台宪青 《中国科学院大学学报》2020,37(3):368-378

传统遥感卫星图像处理采用在地面进行目标检测和跟踪处理的模式，卫星将拍摄到的图像数据下传至地面数据处理中心，由地面数据处理系统对接收到的遥感图像数据进行目标检测和跟踪。然而，随着遥感图像分辨率的不断提高，需要下传的数据量增大，导致星地数据传输的时间大大增加，最终造成目标检测和跟踪的时效性降低。针对上述问题，提出一种基于多特征量判别的Canny边缘检测和联合概率数据关联的在轨海上多运动舰船目标检测和跟踪方法。将该方法利用中国科学院微小卫星创新研究院的高分微纳卫星实测数据在模拟星载的嵌入式开发平台上进行验证，结果表明该方法能够在轨对海上多运动舰船目标进行快速、准确的检测和跟踪。  相似文献   

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor     

Haicheng Li  Yinji Ma  Ziwei Liang  Zhouheng Wang  Yu Cao  Yuan Xu  Hua Zhou  Bingwei Lu  Ying Chen  Zhiyuan Han  Shisheng Cai  Xue Feng 《国家科学评论(英文版)》2020,7(5):849

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.  相似文献