Information Conductivity:Universal Performance Measure for Semantic Communications

As a novel paradigm,semantic communication provides an effective solution for breaking through the future development dilemma of classical communication systems.However,it remains an unsolved problem of how to measure the information transmission capability for a given semantic communication method and subsequently compare it with the classical communication method.In this paper,we first present a review of the semantic communication system,including its system model and the two typical coding and transmission methods for its implementations.To address the unsolved issue of the information transmission capability measure for semantic communication methods,we propose a new universal performance measure called Information Conductivity.We provide the definition and the physical significance to state its effectiveness in representing the information transmission capabilities of the semantic communication systems and present elaborations including its measure methods,degrees of freedom,and progressive analysis.Experimental results in image transmission scenarios validate its practical applicability.

Aerospace Medicine and Human Performance更名前后对比分析及启示

目的研究Aerospace Medicine and Human Performance更名前后的主要报道方向、国别、发文机构的变化情况等,以期为国内同行提供参考。方法主要利用CiteSpace的共词网络功能来对期刊报道方向、发刊国别、发文机构等变化进行分析。数据来自Web of Science核心合集的SCI拓展版,以期刊名“Aviation Space and Environmental Medicine”检索,时间跨度为1991年1月1日至2014年12月31日,剔除征稿启事、会议通知等非学术文献。导入NoteExpress软件进行去重,共有4830篇文章。该刊于2015年更名为“Aerospace Medicine and Human Performance”,检索策略为:时间跨度为2015年1月1日至2023年6月13日,数据清洗方法同上,共检索到1076篇文章。结果(1)主要发文机构:更名前主要供稿机构为美国空军(160篇)、美国国防部(93篇)和美国宇航局(NASA,77篇);更名后主要供稿机构未发生变化,但发文数量均较更名前减少,美国空军47篇,美国国防部24篇,NASA 24篇。(2)主要关键词对比:更名后主要关键词与飞行、航天相关的连接强度显著增加,而对一般健康问题的关注相对减少,出现了spaceflight、air travel等直接与飞行行为相关的内容。(3)主要国别:更名前美国发文2411篇(49.91%)、加拿大发文314篇(6.50%)、英国发文279篇(5.77%)、法国发文167篇(3.45%)、德国发文160篇(3.31%);更名后美国发文501篇(46.56%)、英国发文98篇(9.10%)、中国发文54篇(5.01%)、加拿大发文53篇(4.92%)、法国发文42篇(3.90%)。(4)年均发文量:根据检索结果,更名前共24年,年均发文201篇;更名后从2015年至本文检索截止时间共8.5年,年均发文127篇,年均报道量下降较多。(5)影响因子:截止2014年更名前共发文164篇,影响因子1.0051(含自引);2016年是该刊更名有影响因子等统计数据的第一年,共发文132篇,影响因子0.8250;2022年发文109篇,影响因子1.0001(含自引)。综合考量发文量和影响因子,该刊的综合影响力更名后并无显著提升。结论该刊在更名后,对于飞行环境的影响报道有所减少,主要讨论范围从之前的所有飞行类型聚焦为以太空飞行为主,关于飞行行为对人体健康的影响和绩效表现的报道大幅增长,同时也增加了关于飞行装备对飞行安全影响的讨论。随着航空航天技术的进步和航空装备的发展,更深入地探讨航空活动中环境因素对人体长时间复合作用的影响是必然。在该刊更名后,我国的发文数量排名第三,也在一定程度上说明存在高质量原创性成果外流的情况。我国期刊在坚持刊物原有特色的前提下,根据领域研究的发展,与时俱进,探索可持续发展的办刊模式;要进一步明确期刊定位与服务对象,以国家重大需求为导向,聚焦航空航天领域前沿、热点,适时调整栏目设置,提升期刊的学术质量和学科影响力,打造高质量的学术交流平台。

Effect of Mental Health Problems on Academic Performance among University Students in Pakistan

Scientific interest in student’s mental health experiences has been increasing in the last years due to their influence on students’learning processes,academic performance,and recently,the suicidal news of a student at a private university due to her mental health condition in Lahore Punjab,Pakistan,captured public attention.That incident also shifted researchers and scholars’attention on the much underexplored and tabooed sphere of the broader public health domain.Hence,the current study aimed to explore the relationship between mental health problems and Pakistani university students’academic performance.Participants were 540 senior semester students within the age range of 20–35 years taken from public and private institutes of Pakistan’s major cities,including Lahore,Islamabad,and Peshawar.Descriptive and inferential statistics was employed for data analysis.Pearson Product Moment Correlation,Hierarchical Regression analysis,and Independent sample t-test were used for data analysis in inferential statistics.The results of the study reveal that there is a strong positive association between mental health and improvement in academic performance.Mental health problems negatively affect the academic performance of university students.The findings of the current study were beneficial for shedding light on the ignorant area within the broader public health domain;the results are also helpful in raising awareness for not only students but also the parents and university administration to plan and design effective intervention strategies to provide proper mental health that resultantly promote academic excellence.

The Relationship Between Job Satisfaction and Employee Performance of Teacher in N University, China

At present,as of June 15,2019,the Ministry of Education announced a total of 2,956 institutions of higher learning in China,including 2,688 regular institutions of higher learning(including 266 independent colleges)and 268 adult institutions of higher learning.At present,the development of colleges and universities is also facing serious problems.With the development and progress of the times,many colleges and universities are getting better and better,which is closely related to the teachers’strength and teachers’job satisfaction.It is very important to improve the job satisfaction of university staff.The introduction of teachers is crucial,and many schools are weak in teaching staff,which hinders the long-term development of schools.The turnover of teachers in colleges and universities is closely related to job satisfaction.At present,the overall turnover of teachers in colleges and universities is too frequent.The rapid development of China’s colleges and universities is still expanding the scale of development,which requires more teachers.In the ensuing enterprise competition,university positions are not dominant,mainly in the current life,salary is very important,family expenses,parents,and children’s expenses are getting higher and higher,but the salary of university teachers cannot keep up with the development of the times.At present,one of the problems in colleges and universities is that salary promotion is not friendly to teachers with old qualifications,high academic qualifications,and high professional titles.Therefore,to improve the job satisfaction of college teachers is the only way for the long-term development of colleges and universities.This study investigated the relationship between job satisfaction and employee performance among 341 teachers from N University in Nanning,Guangxi province,China.The independent variable is six factors of job satisfaction,including working environment,salary and promotion,job security,relationship with colleagues,relationship with supervisor,and fairness level.The dependent variable is three factors of employee performance,including enthusiasm,availability,and job engagement.Finally,through data analysis,it was concluded that there was a positive correlation between teachers’job satisfaction and staff performance in N University.

Substantiality:A Construct Indicating Research Excellence to Measure University Research Performance

Purpose:The adequacy of research performance of universities or research institutes have often been evaluated and understood in two axes:“quantity”(i.e.size or volume)and“quality”(i.e.what we define here as a measure of excellence that is considered theoretically independent of size or volume,such as clarity in diamond grading).The purpose of this article is,however,to introduce a third construct named“substantiality”(“ATSUMI”in Japanese)of research performance and to demonstrate its importance in evaluating/understanding research universities.Design/methodology/approach:We take a two-step approach to demonstrate the effectiveness of the proposed construct by showing that(1)some characteristics of research universities are not well captured by the conventional constructs(“quantity”and“quality”)-based indicators,and(2)the“substantiality”indicators can capture them.Furthermore,by suggesting that“substantiality”indicators appear linked to the reputation that appeared in university reputation rankings by simple statistical analysis,we reveal additional benefits of the construct.Findings:We propose a new construct named“substantiality”for measuring research performance.We show that indicators based on“substantiality”can capture important characteristics of research institutes.“Substantiality”indicators demonstrate their“predictive powers”on research reputation.Research limitations:The concept of“substantiality”originated from IGO game;therefore the ease/difficulty of accepting the concept is culturally dependent.In other words,while it is easily accepted by people from Japan and other East Asian countries and regions,it might be difficult for researchers from other cultural regions to accept it.Practical implications:There is no simple solution to the challenge of evaluating research universities’research performance.It is vital to combine different types of indicators to understand the excellence of research institutes.Substantiality indicators could be part of such a combination of indicators.Originality/value:The authors propose a new construct named substantiality for measuring research performance.They show that indicators based on this construct can capture the important characteristics of research institutes.

Investigation of the Academic Performance of College-to-University Transfer Students

Over the last decade, many universities/colleges have developed formal agreements which permit students from recognized college programs to be able to seamlessly transfer to a closely-related university program with advance standing. There has been some concerned raised that students that come to university from college may not be academically (or emotionally) prepared for the faster-paced university programs. This research, which was funded by an Ontario Council on Articulation and Transfer Faculty Fellowship, examines the academic performance of students in computer-related disciplines with a focus on comparing students who come to a university through a formalized college-to-university transfer agreement relative to students who enroll directly from high school. The comparisons will be based on metrics such as graduation rates, course failure rates, overall averages, course-level averages, and course-subject averages.

Strategies, Performances and Profiling of a Sample of U.S. Universities in 2012

The global economic crisis is affecting performances of not-for-profits. At the same time donors are targeted by a pressing good-cause related marketing, so that the competition for philanthropy is particularly keen. U.S. universities can be public, not-for-profit and for-profit. U.S. not-for-profit universities are confronted with different marketing, fundraising and revenue diversification. Above all, marketing concerns customers and their segmentation and their purchasing-power exploitation;fundraising aims to gain the trustworthiness of donors, instead. The aim of this paper is the analysis of the revenue diversification of a sample of 100 U.S. not-for-profit universities according to IRS (Internal Revenue Service) Forms. These 100 U.S. universities had the highest 2012’s revenues for the Guidestar ranking (www.guidestar.org). The cluster analysis gives evidence that the highest gain and the highest solvency are both connected with the implementation of revenue diversification for one profile. The most crowded cluster is the Marketing Expert with the second highest gain.

Performance evaluation of best universities in China's Mainland based on ESI

The research performance of top universities in China is revealed in this study and analyzed using the essential science indicators(ESI) database.Different types of bibliometric indicators are applied in this study,including publication output and impact indicators.This study finds that the academic performance of universities in China is advancing rapidly,with many universities coming out near the top of the rankings,especially in terms of quantity of papers.The quantitative performance of universities in China is remarkable.The research results show that there is a considerable gap between quality and quantity of research output at the top universities of China,with research influence concentrated on some specific fields for selected universities.Engineering,Chemistry and Material Science are the fields with relatively outstanding performance in the top universities.

The Social Media and Technology Addiction and Its Associated Factors among University Students in Lebanon Using the Media and Technology Usage and Attitudes Scale (MTUAS)

The contemporary developments of Information and Communication Technologies usage have fueled a popular concern. The young people are experiencing technology addiction behavior due to excessive media and technology usage. A valid instrument is required to detect individuals at high risk of social media and technology addiction. Objective: The objectives of this study are to assess prevalence of the technology addiction using the Media and Technology Usage and Attitudes Scale (MTUAS) and to investigate the impacts of online social networking on health and academic performance of young university students in Lebanon. Methods: During the academic year 2017-2018, a cross-sectional study which enrolled 705 young university students was conducted. Data was collected using MTUAS questionnaire. The translation and cultural adaptation of the MTUAS followed a standardized protocol. The psychometric properties were then evaluated. We used multivariate regression analyses to determine which characteristics were associated with the technology addiction among students. Results: 705 filled out the questionnaire aged 17 to 35 years (mean = 20.42;SD = 2.41), 74% of whom were females. The internal consistency was high for all subscales and ranged from 0.54 - 0.87. The MTUAS yielded statistically significant scores for subgroups (known group validity). Males’ students had a higher risk of addiction to social media and technology than females. The use of media was viewed common among the smokers (OR = 1.76;95% CI = 1.10 - 2.82, p = 0.02) and drinkers of alcohol (OR = 1.80;95% CI = 1.04 - 3.11, p = 0.04). Students that used e-mailing, smartphone, and TV viewing had a high academic performance level. Females and public university students had negative attitudes toward technology. In conclusion: The technology becomes a big problem on the universities students’ users that has an impact on their life and affects their academic performance. The MTUAS Arabic version has been evaluated as a valid and reliable instrument.

The Impact of Social Media Networks Websites Usage on Students’ Academic Performance

Social Networks Sites (SNSs) are dominating all internet users’ generations, especially the students’ communities. Consequently, academic institutions are increasingly using SNSs which leads to emerge a crucial question regarding the impact of SNSs on students’ academic performance. This research investigates how and to what degree the use of SNSs affects the students’ academic performance. The current research’s data was conducted by using drop and collect surveys on a large population from the University of Jordan. 366 undergraduate students answered the survey from different faculties at the university. In order to study the impact of SNSs on student’s academic performance, the research hypotheses was tested by using descriptive analysis, T-test and ANOVA. Research results showed that there was a significant impact of SNS on the student’s academic performance. Also, there was a significant impact of SNS use per week on the student’s academic performance, whereas no differences found in the impact of use of SNSs on academic performance due to age, academic achievement, and use per day to most used sites. The findings of this research can be used to suggest future strategies in enhancing student’s awareness in efficient time management and better multitasking that can lead to improving study activities and academic achievements.

A Performance Assessment Model Recommended for Higher Education System in Turkey and a Case Study

There are so many university ranking systems for academic performance as based on different criteria in the world.These systems,which have been considered since beginning of 2000’s years,have quickly followed with their own hierarchical measures by higher education organizations.This paper mentions the main principles of a new system for university performance in Turkey and summarizes the study,which was made for the performance of selected universities throughout country.The system depends on teaching income,teaching structure,teaching quality,number of publications and projects,the index for entrepreneurial and innovative university,and student satisfaction.The aim is to provide a comparative study with well-balanced and justice decision for the related universities.This study includes the 10 universities(Anadolu,Çukurova,Cumhuriyet,Dicle,Erciyes,Fırat,İnönü,Ondokuz Mayis,Selçuk,and Uludağ)which were founded between 1973 and 1978.In this study,data belonging to the period of 2010 and 2014 have been considered for the related universities.This study indicates that enlargement rate,localization,politicization,and degradation on management system influence the performance of universities.

中外船舶快速性课程教学模式对比及探索

船舶快速性课程是船舶与海洋工程专业的专业核心必修课程之一,该文以船舶快速性课程为研究对象,分别从中外教学模式、教学内容、课程安排以及考核方式四个方面,对比国内外教学体系的差异,进一步剖析国内外教学模式的优缺点,在国内传统教学模式的基础上,搭建更完善、科学和全面的教学模式,为提高我国高校教学质量和人才培养质量提供借鉴和参考。

地方本科院校硕士生综合表现与生源关系分析——基于A高校管理学院的实证研究

从硕士研究生的性别、本科学校层次及升学方式三个方面,系统分析地方本科院校A高校管理学院硕士研究生的综合表现与生源关系。研究发现地方本科院校硕士生中女学生整体综合表现优于男生,但男生拔尖比例更高。“双一流”生源的学生获一等和二等奖学金的综合比例高于非“双一流”院校,但这种差距在逐渐缩小。推免生生源占比偏低,并且在研究生期间整体表现良而不优,需要引起关注。生源与研究生综合表现之间关系复杂,没有必然联系,在重视提高生源质量的同时更重要的是研究生期间学校的培养和学生的努力。

产学研主体创新效率及其对旅游业绩效的影响:省域分析

基于产学研协同创新视角,以省域为空间单元,测算并比较产学研三大主体的旅游创新投入产出效率及空间特征,并进一步分析创新效率对旅游产业绩效的影响。选择旅游企业、高校及科研机构为旅游创新主体的代表,采用DEA模型和灰色关联方法对3个不同时段的投入产出数据进行分析。结果表明:各省份三大主体的旅游创新效率值总体偏低,并呈现出“一带一路”沿线,“东南-西北”和东部沿海地区等省份创新效率值较高的空间格局;三大主体旅游创新效率的协调度不高,部分省份达到高平衡状态;三大主体的旅游创新效率均与省域旅游产业绩效存在显著相关性。相关结果有助于理解区域旅游创新的结构和过程,为我国旅游创新资源的合理分配提供参考。

四川大学博物馆结构设计重难点分析研究

四川大学博物馆采用钢框架结构体系,并设置屈曲约束支撑改善结构的抗震性能。介绍了四川大学博物馆的结构设计参数及抗震性能目标。针对结构设计中的重难点,开展了屈曲约束支撑的工作机理分析、框架柱计算长度与穿层柱分析、东侧大悬挑空间的相关分析。利用反应谱分析及时程分析探究了屈曲约束支撑工作机理,分析结果表明,屈曲约束支撑能够有效改善钢结构产生塑性铰的状况,起到保护主体钢框架的作用。针对东侧大悬挑空间的功能要求,设计采用了屋顶桁架结合钢拉杆吊挂东侧大楼梯的结构形式,通过结构防连续倒塌分析、楼板应力分析、楼盖舒适度分析、关键节点有限元分析等确保该部位结构设计安全合理。对整体结构受力机理和薄弱部位进行了研究,提出了重点部位的设计原则和加强措施。