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Comparison of vergence mechanisms between university students with good and poor sleep quality
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作者 Pui Juan Woi Joyce Yi Ling Lu +1 位作者 Mohd Izzuddin Hairol Wan Nur Amirah Ibrahim 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第2期353-358,共6页
AIM:To compare the vergence mechanisms between good and poor sleepers in university students.METHODS:A total of 64 university students were recruited in this study.The validated Malay version of Pittsburgh Sleep Quali... AIM:To compare the vergence mechanisms between good and poor sleepers in university students.METHODS:A total of 64 university students were recruited in this study.The validated Malay version of Pittsburgh Sleep Quality Index questionnaire(PSQI-M)was used to measure the participants’sleep quality over the past month.Participants were categorized as good sleepers(n=32)and poor sleepers(n=32)based on the PSQI-M scores.Heterophoria and fusional vergences were measured at distance and near.Mann-Whitney U test was used to compare heterophoria,negative fusional vergence(NFV),and positive fusional vergence(PFV)at distance and near between good and poor sleepers.Spearman correlation analysis was used to study the relationship between PSQI-M score and PFV at distance.RESULTS:Both distance and near heterophorias were not significantly different between good and poor sleepers(P>0.05).There was a difference in distance PFV(P<0.05)between good and poor sleepers,but not in distance NFV,near NFV,and near PFV(P>0.05).Distance PFV was negatively correlated with PSQI-M score(rs=-0.33,P<0.05).CONCLUSION:University students with poor sleep quality demonstrates a reduced ability to maintain fusion with increasing convergence demand at distance.Sleep quality assessment during binocular vision examination in university students is recommended. 展开更多
关键词 binocular vision VERGENCE sleep quality university students
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Prevalence and Factors Associated with Refractive Errors among University Students at Mbarara University of Science and Technology, Uganda
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作者 Denis Kamara John Onyango +5 位作者 Simon Arunga Mwanja Pius Pliers Denis Tusingwire Mary Assumpta Ayoo Eric Ronald Mulongo Barnabas Atwiine 《Open Journal of Ophthalmology》 2024年第3期324-338,共15页
Introduction: WHO estimated that uncorrected refractive errors are the leading cause of visual impairment and second leading cause of blindness globally. University students are prone to developing refractive errors d... Introduction: WHO estimated that uncorrected refractive errors are the leading cause of visual impairment and second leading cause of blindness globally. University students are prone to developing refractive errors due to their curriculum that requires a lot of near work affecting their performance and quality of life unknowingly. Genetic and environmental factors are thought to play a role in the development of refractive errors. This study addresses the paucity of knowledge about refractive errors among university students in East Africa, providing a foundation for further research. Objectives: To determine the prevalence and factors associated with refractive errors among students in the Faculty of Medicine at Mbarara University of Science and Technology. Methodology: This was a cross-sectional descriptive and analytical study in which 368 undergraduate students selected using random sampling were assessed for refractive errors from March 2021-July 2021. Eligible participants were recruited and their VA assessment done after answering a questionnaire. Students whose VA improved on pin hole had subjective retinoscopy and results were compiled and imported to STATA 14 for analysis. Results: The prevalence of refractive errors was 26.36% with (95% CI) among university students especially myopia. Myopia is most predominant at 60%, followed by 37% Astigmatism and hyperopia of 3% among medical students. Astigmatism consisted of largely myopic astigmatism 72% (26) and 28% (10) compound/mixed astigmatism only. Student positive family history of refractive error was found to have a statistically significant relationship with refractive errors with AOR 1.68 (1.04 - 2.72) (95% CI) and P (0.032). Conclusion: The prevalence of refractive errors among university students, especially myopia, was found to be high and family history was associated with students having refractive errors. 展开更多
关键词 Refractive Errors PREVALENCE Myopia ASTIGMATISM HYPEROPIA HYPERMETROPIA university Students BLINDNESS Visual Impairment
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Evolution of Viral Load in Patients Infected with HIV-1 at Point G University Hospital
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作者 A. Maiga D. Kone +6 位作者 D. M. Coulibaly Ag M. Baraika A. Traore S. S. Diakite I. I. Maiga I. Konate A. I. Maiga 《Open Journal of Medical Microbiology》 2024年第1期66-76,共11页
Introduction: HIV, the human immunodeficiency virus, is the etiological agent of acquired immunodeficiency syndrome (AIDS). The aim of this study was to assess the evolution of the viral load in patients under treatme... Introduction: HIV, the human immunodeficiency virus, is the etiological agent of acquired immunodeficiency syndrome (AIDS). The aim of this study was to assess the evolution of the viral load in patients under treatment. Methodology: This was a study carried out from July 2017 to June 2022 at the Point G University Hospital laboratory. The determination of the viral load of patients was carried out by PCR on the ABOTT M2000sp/rt platform. Results: A total of 129 patients infected with HIV-1, aged 19 to 72 years with a mean age of 40.05 years ± 10.71;all on antiretroviral chemotherapy. The female gender predominated among our patients. The most common treatment regimen was 2INTI + 1INNTI with 72.9% followed by 2INTI + 1INI with 13.2%. As for the combinations of molecules, the combination TDF + 3TC + EFV and TDF + 3TC + DTG predominated, respectively 65.1% and 13.2%. 89.9% of our patients had undetectable viremia after 12 months of treatment (p < 0.005) with an average viral load which had evolved from 681315.65 copies/ml ± 1616908.484 to M0 at 5742.36 copies /ml ± 35756.883 at M12 (p Conclusion: Generally speaking, antiretroviral treatment had contributed to controlling viral loads, however the therapeutic combination TDF + 3TC + DTG had made it possible to obtain more patients with undetectable viremia instead. 展开更多
关键词 HIV-1 TREATMENT Viral Load Point G university Hospital
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Exploration of the Current Situation and Mechanism Innovation of University Education Management under the New Situation
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作者 Yuanfei Xue Minna Sun 《Journal of Contemporary Educational Research》 2024年第10期220-226,共7页
In the new era,university education management should be oriented toward the cultivation of innovative talents and the construction of a comprehensive education system.It should develop capable and qualified higher-le... In the new era,university education management should be oriented toward the cultivation of innovative talents and the construction of a comprehensive education system.It should develop capable and qualified higher-level talents in response to the social demand for talent application,thereby enhancing the overall educational competitiveness of universities and driving deep reforms in educational activities.However,in current educational practice,efficient educational management often focuses on curriculum development and cultural education,with insufficient attention paid to the development of students’comprehensive literacy.The talent cultivation and education programs are not yet perfect.This article explores the current situation of university education management activities under the new situation and considers practical methods for innovating university education management mechanisms. 展开更多
关键词 university education management New situation Talent cultivation
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Social Media Use Among Youth and Innovations of Moral Education Work With University Students in China
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作者 ZHANG Wei-wei 《Sino-US English Teaching》 2016年第7期521-527,共7页
The new media especially the use of mobile phone for information has a profound impact on contemporary university students' behavior, psychology, and way of thinking. This article will elaborate on the moral educatio... The new media especially the use of mobile phone for information has a profound impact on contemporary university students' behavior, psychology, and way of thinking. This article will elaborate on the moral education work with university students to explore innovative ideas and innovative approaches from the perspective of interpersonal communication, political science, and sociology under the new media environment. Then the article will put forward countermeasures and improvement strategies. 展开更多
关键词 interpersonal communication social media innovation moral education university students
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“Three-Wide Education”Reform,Innovation,and Practice in Guangdong University of Petrochemical Technology
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作者 Mei Liu Xiaoling Xu 《Journal of Contemporary Educational Research》 2024年第1期186-191,共6页
The comprehensive reform of“three-wide education”is important to achieve inheritance and innovation in ideological education in colleges and universities.The Guangdong University of Petrochemical Technology aims to ... The comprehensive reform of“three-wide education”is important to achieve inheritance and innovation in ideological education in colleges and universities.The Guangdong University of Petrochemical Technology aims to address the practical problems of a weak ideological education team,incomplete system and mechanism,and insufficient resource mobilization in“three-wide education.”It actively explores the“three-wide education”based on the university’s existing foundation and advantages.Comprehensive,innovative ideas for reform,practice,and promotion of unique practices and paths are necessary,to continuously deepen education reforms and strive to build a new“three-wide education”work pattern to help the country’s modern talent cultivation work. 展开更多
关键词 Three-wide education System and mechanism reform Innovative practice
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Cultivate Talent and Seek for Innovation in the past 20 Years——Exclusive Interview with Professor Li Chunling Dean of the School of Economics and Management, Yanshan University
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作者 Guo Yan 《China's Foreign Trade》 2018年第6期28-31,共4页
Yanshan University was formerly known as Northeast Heavy Machinery Institute,and was one of the key universities in China at that time.As of1985,the institute moved to Qinhuangdao Island,and as it was located at the f... Yanshan University was formerly known as Northeast Heavy Machinery Institute,and was one of the key universities in China at that time.As of1985,the institute moved to Qinhuangdao Island,and as it was located at the foot of Yanshan,it was called as Yanshan University.The School of Economics and Management was established in1979and the Management Engineering Department was established in1984,which was renamed as the School of Economics and Management in1998.This year is the20th anniversary for the establishment of the School. 展开更多
关键词 SCHOOL Cultivate Talent and Seek for innovation in the past 20 Years Exclusive Interview with Professor Li Chunling Dean of the School of Economics and Management Yanshan university LI innovation
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Study on Implementing Social Media With Teaching in Course of Technology and Innovation for Teachers for Undergraduates of the Faculty of Education, Naresuan University
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作者 Tipparat Sittiwong Thanet Wongnam 《Sino-US English Teaching》 2016年第10期771-777,共7页
The objectives of this research were (1) to study on students' achievement after implementing social media with teaching in course of Technology and Innovation for Teachers; (2) to study on students' opinions on... The objectives of this research were (1) to study on students' achievement after implementing social media with teaching in course of Technology and Innovation for Teachers; (2) to study on students' opinions on implementing social media with teaching in the course for undergraduates; and (3) to study on behavior of 38 students in Thai Language major, Faculty of Education, towards implementing social media with teaching in the course for undergraduates who attended the course in academic year 2014. The data was collected by using a learning achievement test before and after implementing social media in the course and a questionnaire for students concerning their opinions regarding implementing social media with the course. The data was analyzed by finding percentage, mean, standard deviation (SD), t-test dependent, and behavioral observation. The result showed that (I) the post-study achievement of 38 students was significantly higher than pre-study achievement with a statistical significance of .05; (2) the students "mostly agreed" on implementing social media with the course (μ = 4.40, σ = .37). After considering in each aspect, it was found that the three aspects that reached highest score respectively were overall image of implementing social media in classes (μ= 4.74, σ = .45). Followed by those that reached the same score, which were, "implementing social media allowed students to exchange experience, knowledge, and attitudes between each other more" with (μ = 4.66, σ = .48), "implementing social media allowed students and teachers to exchange experience, knowledge, and attitudes with teachers more" with (μ = 4.66, σ = .48), "allowed students to work with each other or do more self-study" with (μ = 4.66, σ = .48), "allowed students to study by themselves" with (μ = 4.66,σ = .48), and "implementing social media in classes allowed students to submit assignment, and receive suggestions for improvement at all times" with (μ = 4.66, σ = .48). The third was "implementing social media in classes allowed more methods for students to communicate with teachers" with (μ = 4.53, σ = .51); and (3) behaviors of implementing social media with the course showed that (a) in terms of promoting knowledge, social media helped promoting knowledge between friends and between students and teachers in various concepts, which was the part that linked to practicing living together in society with others; (b) in terms of communication, students had a change to participate in more socialization by debating or asking questions via Facebook; (c) in terms of strengthening motivation, students were enthusiastic to learn and used the Facebook group for communication; (d) in terms of adjusting an opened-learning environment, this promoted the behavior that students would study and learn anywhere outside of classrooms,which helped learners to always learn not just in their classes; moreover, this would form the behavior of being able to work anywhere anytime, improve, and adjust their works by having records of the changes as well; and (e) in terms of supporting and promoting two-way communication, students were able to communicate and exchange information more than just in class and they were also encouraged to compete by producing portfolios and present them on Facebook and YouTube. 展开更多
关键词 social media course of Technology and innovations for Teachers
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从同文馆到北京大学:近代中国“Peking University”概念考论
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作者 宋雪 《教育学报》 CSSCI 北大核心 2024年第4期195-207,共13页
从晚清到民国,“Peking University”的指称对象先后包括京师同文馆、汇文书院、京师大学堂、私立燕京大学和国立北京大学五所驻京高等教育机构,其中既有国立最高学府,也有私立教会学校。虽然部分属于非正式名称,但仍具有广泛社会影响... 从晚清到民国,“Peking University”的指称对象先后包括京师同文馆、汇文书院、京师大学堂、私立燕京大学和国立北京大学五所驻京高等教育机构,其中既有国立最高学府,也有私立教会学校。虽然部分属于非正式名称,但仍具有广泛社会影响。语言概念的重叠带来话语表达中的歧义,同时也投射出多元复杂的历史图景。依据档案、报刊、辞书、回忆录等材料,返回历史现场,梳理近代中国“Peking University”概念的生成和流变,从中考察新式教育的引入、中西观念的互动及文化空间的形成,有助于探求译名背后的知识建构、教育转型与社会变迁。 展开更多
关键词 Peking university 同文馆 京师大学堂 北京大学 燕京大学 概念史 教育转型
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Evolution Characteristics of Government-Industry-University Cooperative Innovation Network of Electronic Information Industry in Liaoning Province, China 被引量:8
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作者 PENG Fei ZHANG Qiqi +2 位作者 HAN Zenglin DING Yan FU Ningning 《Chinese Geographical Science》 SCIE CSCD 2019年第3期528-540,共13页
It is important to optimize the cooperative innovation network for the improvement of economic competence and innovative power. Based on the patent information services platform, we obtain invention patent data for th... It is important to optimize the cooperative innovation network for the improvement of economic competence and innovative power. Based on the patent information services platform, we obtain invention patent data for the electronic information industry in Liaoning from 1985 to 2015. This paper analyzes the cooperative innovation network structure, its spatiotemporal evolution and the triple helix relationship of government-industry-university(GIU) by using the social network analysis method and the triple helix theory as well as UCINet, ArcGIS and NetDraw. The empirical results show that: 1) the number of the subjects of the electronic information industry GIU cooperative innovation network in Liaoning demonstrates a gradual increase from 1985 to 2015, with the same trend in concentration. In terms of its subject and its centrality, the universities have a higher position, and the industries have a lower position,while the status of the government is still unclear. 2) The cooperative innovation network presents a core-periphery structure, and the polarization effect of innovation subjects tends to be obvious. There is certain distance-decay regularity in the cooperative innovation network, and a strong geographical proximity to cooperative innovation. 3) The compactness shows a downward trend as a whole. In terms of the extent of participation, the industries are better than the government but worse than the universities. This means that the cooperative innovation network of GIU in the electronic information industry in Liaoning is in the initial stage of formation. 展开更多
关键词 government-industry-university (GIU) COOPERATIVE innovation network triple HELIX electronic information INDUSTRY Liaoning Province
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A Study of Methods to Identify Industry-University-Research Institution Cooperation Partners based on Innovation Chain Theory 被引量:9
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作者 Haiyun Xu Chao Wang +3 位作者 Kun Dong Rui Luo Zenghui Yue Hongshen Pang 《Journal of Data and Information Science》 CSCD 2018年第2期38-61,共24页
Purpose: This study aims at identifying potential industry-university-research collaboration(IURC) partners effectively and analyzes the conditions and dynamics in the IURC process based on innovation chain theory.... Purpose: This study aims at identifying potential industry-university-research collaboration(IURC) partners effectively and analyzes the conditions and dynamics in the IURC process based on innovation chain theory.Design/methodology/approach: The method utilizes multisource data, combining bibliometric and econometrics analyses to capture the core network of the existing collaboration networks and institution competitiveness in the innovation chain. Furthermore, a new identification method is constructed that takes into account the law of scientific research cooperation and economic factors.Findings: Empirical analysis of the genetic engineering vaccine field shows that through the distribution characteristics of creative technologies from different institutions, the analysis based on the innovation chain can identify the more complementary capacities among organizations.Research limitations: In this study, the overall approach is shaped by the theoretical concept of an innovation chain, a linear innovation model with specific types or stages of innovation activities in each phase of the chain, and may, thus, overlook important feedback mechanisms in the innovation process.Practical implications: Industry-university-research institution collaborations are extremely important in promoting the dissemination of innovative knowledge, enhancing the quality of innovation products, and facilitating the transformation of scientific achievements.Originality/value: Compared to previous studies, this study emulates the real conditions of IURC. Thus, the rule of technological innovation can be better revealed, the potential partners of IURC can be identified more readily, and the conclusion has more value. 展开更多
关键词 Institutions collaboration Collaboration network innovation chain Industrialchain Industry-university-research institutions
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STABILITY OF INNOVATION DIFFUSION MODEL WITH NONLINEAR ACCEPTANCE 被引量:5
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作者 于宇梅 王稳地 《Acta Mathematica Scientia》 SCIE CSCD 2007年第3期645-655,共11页
In this article, an innovation diffusion model with the nonlinear acceptance is proposed to describe the dynamics of three competing products in a market. It is proved that the model admits a unique positive equilibri... In this article, an innovation diffusion model with the nonlinear acceptance is proposed to describe the dynamics of three competing products in a market. It is proved that the model admits a unique positive equilibrium, which is globally stable by excluding the existence of periodic solutions and by using the theory of three dimensional competition systems. 展开更多
关键词 Global stability nonlinear acceptance innovation diffusion model
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Prevalence and Factors Associated with Overweight and Obesity among University Students of the Health Field in San Luis PotosíMéxico 被引量:3
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作者 Tejada Tayaba Luz María Pastor Durango María del Pilar +2 位作者 Gaytan Hernández Dario Norma Angelica Estevis Adame Ortiz Villalobos Guillermo 《Health》 2015年第3期328-335,共8页
The aim for this research is to determine the association between the risk factors and prevalence of overweight and obesity in students in the health field in the Autonomous University of San Luis Potosí (UASLP i... The aim for this research is to determine the association between the risk factors and prevalence of overweight and obesity in students in the health field in the Autonomous University of San Luis Potosí (UASLP in Spanish). A quantitative, correlational, and cross-sectional study was conducted from May to November 2012. By stratified random sampling, 290 students in the health field were selected. Questionnaire was used to identify factors associated with obesity. The obesity and overweight prevalence was determined, calculating body mass index through anthropometric measurement. The strength of the association between variables was measured using Chi squared and odds ratio tests. The proportion of students with overweight or obesity was 28.3% and was higher in men (36.8%) than in women (24.6%), with statistical significance (p < 0.01). Greater obesity or overweight was identified in psychology students (p < 0.01) and in those who reported an average appetite (79.3%) (p < 0.05). In total, 66.6% of the students decreased their physical activity upon joining the university, which was a factor significantly associated with obesity and overweight (p < 0.05). The findings show that the school environment can be a conditioning factor for the development of obesity and overweight in students. Implementation of a program is recommended to prevent and control such problems. 展开更多
关键词 university STUDENTS OBESITY Risk FACTORS
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Evolution Characteristics of Government-Industry-University-Research Cooperative Innovation Network for China's Agriculture and Influ- encing Factors: Illustrated According to Agricultural Patent Case 被引量:14
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作者 LI Erling YAO Fei +1 位作者 XI Jiaxin GUO Chunyang 《Chinese Geographical Science》 SCIE CSCD 2018年第1期137-152,共16页
Under the special background of China, the cooperative innovation between different government-industry-university-research institutes plays an increasingly important role in the agricultural field. However, the exist... Under the special background of China, the cooperative innovation between different government-industry-university-research institutes plays an increasingly important role in the agricultural field. However, the existing literature has paid little attention to it. Considering the cooperation patents, published in the agriculture field stemming from the Full-text Database of China Patents as the study object, the spatial and institutional attribute of the authors as the data source, and by combining the social network and spatial econometrics analysis, this paper analyzes the structure evolution characteristics of cooperative innovation networks of agricultural government-industry-university-research institute in the city level of China in 1985–2014, based on the triple helix theory, with the influence factors discussed. This shows that, 1) since 1985, China's agricultural innovation level has been substantially increased, but the development degree of the cooperative innovation network is low, and the patent cooperation mainly relies on authors in the same unit; 2) enterprises play a leading role in the agricultural cooperative innovation. The effect of the government and hybrid organizations driven by the government is not obvious; 3) the cooperative innovation in the province and city dominates, and a multi-pole pattern has been formed. The cooperative innovation network structure evolves from a single helix empty core and double helix multi core to a double helix hierarchical network; 4) the city's science, education funding and personnel investment are key factors determining the agricultural cooperative innovation, while the agricultural development of the city presents slight negative impacts on it. The spatial mismatch of supply and demand is present in the technical cooperative innovation of China's agriculture. Therefore, the science enhancement and education investment to big agricultural provinces should be promptly implemented. 展开更多
关键词 cooperation innovation networks government-industry-university-research institute China's agricultural patent SocialNetwork Analysis (SNA)
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Does Industry-University-Research Cooperation Matter? An Analysis of Its Coupling Effect on Regional Innovation and Economic Development 被引量:5
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作者 CUI Zhizhen LI Erling 《Chinese Geographical Science》 SCIE CSCD 2022年第5期915-930,共16页
The dislocation between regional innovation and economic development directly influences the economic effect of regional innovation. However, no in-depth researches have been made on how to solve this problem. Using d... The dislocation between regional innovation and economic development directly influences the economic effect of regional innovation. However, no in-depth researches have been made on how to solve this problem. Using data from Henan Province, China,employing geographical detector technology, this paper focuses on testing whether the industry-university-research cooperation can contribute to coordinating the relation between regional innovation and economic development. It is shown that: 1) the industry-universityresearch cooperation in Henan Province is increasing gradually, and the network presents a core-edge structure, and the coupling degree between regional innovation and economic development is spatially unbalanced, which is similar to the spatial distribution of the intensity of industry-university-research cooperation;2) as an important approach to effectively connect scientific researches with market demands, the industry-university-research cooperation can help form an interactive, interconnected, coupled and coordinated virtuous relation between regional innovation and economic development. Compared with the cooperation between organizations of the same type and the separate innovation of organizations, the improvement of the industry-university-research cooperation level can better coordinate the relation between regional innovation and economic development;3) the cooperative innovation model between enterprises and universities can better promote the coupling between regional innovation and economic development, compared with many industryuniversity-research cooperation models. For underdeveloped areas lacking local knowledge base, industry-university-research cooperation should be considered as a long-term development strategy, especially using the knowledge sources of external universities and scientific research institutions to enhance innovation capability and achieve economic growth. 展开更多
关键词 industry-university-research cooperation regional innovation capability economic development level coupling relation model difference Henan Province China
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Open-Innovation in the Electrical and Electronic Industries: Engineered Bio-Fluid Compositions Are Paving the Way, and Testing Therewith 被引量:2
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作者 Serge Rebouillat Bernard Noirhomme 《Journal of Biomaterials and Nanobiotechnology》 2018年第2期189-209,共21页
Engineered Biofluids are paving the way to industrialized and specifically produced and tailored functional fluids such as coolant and dielectric, high purity traceable media, for the electrical and electronic industr... Engineered Biofluids are paving the way to industrialized and specifically produced and tailored functional fluids such as coolant and dielectric, high purity traceable media, for the electrical and electronic industries. Dielectric fluid compositions are commonly used in electrical devices, particularly in transformers. These liquids have the aim to isolate the various conductive elements of the device and to limit the heating of the equipment during its operation;in order to minimize, or maintain at higher power, the size of the device and to increase the lifespan of it. Concomitantly a number of bio and traditional processing advancements are made associated with pioneering process technologies which are outlined within the prime context of this paper. Enzyme Engineering and Cocktailing add “A New Dimension to Softer Greener Chem-Bio Approaches” which are referenced beyond curiosity purpose. Some of them are possibly “revolutionary” more than evolutionary. Testing has to evolve accordingly to appreciate the challenges ahead in semi-extreme conditions which are relevant to climate changes as well. A significant part of this orientation work addresses and exemplifies these necessary testing innovations, likely adaptable to smart and responsive connecting, and further down the line bigger data role and learning machine evolutionary concepts. One other innovative part of this exploratory work, is the influence that such illustrative localized testing, with integrated sensors/induced-tracers, and online interpretation, may have on the smart grid developments;whereby production, transmission, distribution and consumption of energy can be made more reliable, more effective and more predictive and can also have an impact on the performance, reliability and sustainability of the equipment itself. Those technologies and associated testing can support environmental, technological and societal awareness;helping to revert some trends being climate changes, fossil fuel preservation and other planetary challenges to maintain the overall and localized fundamental equilibriums. 展开更多
关键词 Open innovation Green Technology Electrical Behavior Transformers Extreme Conditions BIOFLUIDS Engineered BIOFLUIDS Enzymes ESTERIFICATION
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Oral Health Knowledge and Practices among Diverse University Students with Access to Free Dental Care: A Cross-Sectional Study 被引量:1
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作者 Ola B. Al-Batayneh Arwa I. Owais Yousef S. Khader 《Open Journal of Stomatology》 2014年第3期135-142,共8页
Aim: The aim of this study was to investigate oral health knowledge and practices among under-graduate university students from various disciplines with access to free dental care. Materials and Methods: A total of 70... Aim: The aim of this study was to investigate oral health knowledge and practices among under-graduate university students from various disciplines with access to free dental care. Materials and Methods: A total of 709 questionnaires were filled out. Data collected included: demographic data, oral health knowledge, and self-reported oral health practices and dental service utilization. Descriptive statistics and Chi-square analysis were performed;significance level was set at P < 0.05. Mean age was 20.8 ± 1.5 years. Results: There were (90.1%) of students who considered the toothbrush an oral hygiene aid, (91.1%) thought fluoride was beneficial to teeth, and almost (80%) students believed smoking has harmful effects on oral health. Regarding oral health practices, nearly half of the samples reported twice daily tooth-brushing, one-third received regular dental check-ups, and half visited the dentist because of pain or bleeding gums;fear was the main reason for not visiting the dentist. Females primarily visited the dentist for esthetic reasons (70%) and males upon complaint (59.8%). Oral health knowledge and practices among university students were poor. Conclusion: Dental students showed higher knowledge and better practices among disciplines studied. It is also important that dental hygienists take an active role in educating students in the aspect of oral health. 展开更多
关键词 ORAL HEALTH Knowledge PRACTICES university STUDENTS
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Recent Strategies for the Development of Biosourced-Monomers, Oligomers and Polymers-Based Materials: A Review with an Innovation and a Bigger Data Focus 被引量:3
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作者 Serge Rebouillat Fernand Pla 《Journal of Biomaterials and Nanobiotechnology》 2016年第4期167-213,共47页
After setting the ground of the quantum innovation potential of biosourced entities and outlining the inventive spectrum of adjacent technologies that can derive from those, the current review highlights, with the sup... After setting the ground of the quantum innovation potential of biosourced entities and outlining the inventive spectrum of adjacent technologies that can derive from those, the current review highlights, with the support of Bigger Data approaches, and a fairly large number of articles, more than 250 and 10,000 patents, the following. It covers an overview of biosourced chemicals and materials, mainly biomonomers, biooligomers and biopolymers;these are produced today in a way that allows reducing the fossil resources depletion and dependency, and obtaining environmentally-friendlier goods in a leaner energy consuming society. A process with a realistic productivity is underlined thanks to the implementation of recent and specifically effective processes where engineered microorganisms are capable to convert natural non-fossil goods, at industrial scale, into fuels and useful high-value chemicals in good yield. Those processes, further detailed, integrate: metabolic engineering involving 1) system biology, 2) synthetic biology and 3) evolutionary engineering. They enable acceptable production yield and productivity, meet the targeted chemical profiles, minimize the consumption of inputs, reduce the production of by-products and further diminish the overall operation costs. As generally admitted the properties of most natural occurring biopolymers (e.g., starch, poly (lactic acid), PHAs.) are often inferior to those of the polymers derived from petroleum;blends and composites, exhibiting improved properties, are now successfully produced. Specific attention is paid to these aspects. Then further evidence is provided to support the important potential and role of products deriving from the biomass in general. The need to enter into the era of Bigger Data, to grow and increase the awareness and multidimensional role and opportunity of biosourcing serves as a conclusion and future prospects. Although providing a large reference database, this review is largely initiatory, therefore not mimicking previous classic reviews but putting them in a multiplying synergistic prospective. 展开更多
关键词 Biomass Biosourced Monomers Advanced Biomaterials Chemical Building Blocks Design Strategy Metabolic Engineering innovation Bigger Data
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Are University Rankings Statistically Significant?A Comparison among Chinese Universities and with the USA 被引量:1
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作者 Loet Leydesdorff Caroline SWagner Lin Zhang 《Journal of Data and Information Science》 CSCD 2021年第2期67-95,共29页
Purpose:Building on Leydesdorff,Bornmann,and Mingers(2019),we elaborate the differences between Tsinghua and Zhejiang University as an empirical example.We address the question of whether differences are statistically... Purpose:Building on Leydesdorff,Bornmann,and Mingers(2019),we elaborate the differences between Tsinghua and Zhejiang University as an empirical example.We address the question of whether differences are statistically significant in the rankings of Chinese universities.We propose methods for measuring statistical significance among different universities within or among countries.Design/methodology/approach:Based on z-testing and overlapping confidence intervals,and using data about 205 Chinese universities included in the Leiden Rankings 2020,we argue that three main groups of Chinese research universities can be distinguished(low,middle,and high).Findings:When the sample of 205 Chinese universities is merged with the 197 US universities included in Leiden Rankings 2020,the results similarly indicate three main groups:low,middle,and high.Using this data(Leiden Rankings and Web of Science),the z-scores of the Chinese universities are significantly below those of the US universities albeit with some overlap.Research limitations:We show empirically that differences in ranking may be due to changes in the data,the models,or the modeling effects on the data.The scientometric groupings are not always stable when we use different methods.Practical implications:Differences among universities can be tested for their statistical significance.The statistics relativize the values of decimals in the rankings.One can operate with a scheme of low/middle/high in policy debates and leave the more fine-grained rankings of individual universities to operational management and local settings.Originality/value:In the discussion about the rankings of universities,the question of whether differences are statistically significant,has,in our opinion,insufficiently been addressed in research evaluations. 展开更多
关键词 RANKING university China Significance of differences INDICATORS
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Relationship of Internet Addiction with Depression, Loneliness and Health Related Lifestyle among University Students 被引量:2
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作者 R. M. A. Chamika Shavindra R. Dias 《Journal of Health Science》 2018年第4期310-315,共6页
Internet addiction (IA) is a newly emerged clinical disorder and it has negative effects on physical and mental health. University students are the most vulnerable group for IA, The aim of the present study was to d... Internet addiction (IA) is a newly emerged clinical disorder and it has negative effects on physical and mental health. University students are the most vulnerable group for IA, The aim of the present study was to determine the relationship of IA with depression, loneliness and health related lifestyle among university students. Cross-sectional survey was conducted by enrolling 175 students of Faculty of Allied Health Sciences, University of Peradeniya. Internet addiction test (IAT) was used to assess the level of IA. Depression, loneliness, and health related lifestyle were assessed using Peradeniya depression scale (PDS), University of California at Los Angeles (UCLA) loneliness scale and health practice score (HPS) respectively. T-test and ANOVA were conducted to examine the differences; and correlation and regression analyses were used to examine the relationships between variables. Overall, 40.6% of students were placed in IA group. Generally 28.6% of students had mild and 12.0% had moderate addiction. No case of severe IA was seen. There were 20.6% of students in depressive state and 17.1% of students had poor HPS. The average score that the student got from loneliness scale was 23.42. There was a positive significant correlation between IA and both depression and loneliness. Moreover, a negative significant correlation found between IA and health related lifestyle. Male students had higher IA scores than female students. The study results are considered to develop preventive interventions and treatment strategies. 展开更多
关键词 IA DEPRESSION LONELINESS health related lifestyle university students.
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