With the rapid development of artificial intelligence technology,the development of virtual reality technology has received increasing attention in various fields.Based on the difficulties in the course construction o...With the rapid development of artificial intelligence technology,the development of virtual reality technology has received increasing attention in various fields.Based on the difficulties in the course construction of“Virtual Reality Technology”,this paper adopts a questionnaire survey method to study the learning effects of students majoring in digital media technology at Guangxi University of Finance and Economics regarding the“Virtual Reality Technology”course.The research mainly involves four aspects:learning content,teaching effectiveness,learning experience,and future development needs.The research analysis in this paper not only provides strong support for the construction of a first-class course in“Virtual Reality Technology”but also offers references for the course construction of digital media technology majors in other universities.展开更多
In order to explore the relationship between college students’English learning motivation and learning effect,this paper uses a questionnaire survey to investigate and analyze the English classroom learning motivatio...In order to explore the relationship between college students’English learning motivation and learning effect,this paper uses a questionnaire survey to investigate and analyze the English classroom learning motivation of first-year non-English majors.Based on the final English score,the paper analyzes the correlation between English learning motivation and learning effect.展开更多
In the context of internationalization,China-UK Joint Education Programs are receiving increasing attention from universities.Based on the difficulties faced in China-UK Joint Education Program,this paper adopts a que...In the context of internationalization,China-UK Joint Education Programs are receiving increasing attention from universities.Based on the difficulties faced in China-UK Joint Education Program,this paper adopts a questionnaire survey method to study the learning effectiveness of students majoring in digital media technology in the China-UK Joint Education Program at Guangxi University of Finance and Economics,focusing on four aspects:learning materials,learning content,teacher conditions,and student learning outcomes.The research analysis in this paper not only provides strong support for the construction of China-UK Joint Education Program but also offers references for other China-UK Joint Education Programs.展开更多
In this paper we consider a single-machine scheduling model with deteriorating jobs and simultaneous learning, and we introduce polynomial solutions for single machine makespan minimization, total flow times minimizat...In this paper we consider a single-machine scheduling model with deteriorating jobs and simultaneous learning, and we introduce polynomial solutions for single machine makespan minimization, total flow times minimization and maximum lateness minimization corresponding to the first and second special cases of our model under some agreeable conditions. However, corresponding to the third special case of our model, we show that the optimal schedules may be different from those of the classical version for the above objective functions.展开更多
In the course of program comprehension and analysis,we have carried out an effectiveness oriented hybrid teaching mode,and carried out the reform of student-centered teaching methods.The teaching content puts forward ...In the course of program comprehension and analysis,we have carried out an effectiveness oriented hybrid teaching mode,and carried out the reform of student-centered teaching methods.The teaching content puts forward specific solution cases from the perspective of industrial practice.Latest literatures from top conferences are analyzed and disused in class,so as to track the state art of research and practice.Practical project is assigned to improve students’practice and innovation ability.Teaching,learning and practice are closely integrated.In each link,students are guided to carry out autonomous and inquiry learning to improve their learning effectiveness.Good learning results have been achieved.展开更多
Currently,energy conservation draws wide attention in industrial manufacturing systems.In recent years,many studies have aimed at saving energy consumption in the process of manufacturing and scheduling is regarded as...Currently,energy conservation draws wide attention in industrial manufacturing systems.In recent years,many studies have aimed at saving energy consumption in the process of manufacturing and scheduling is regarded as an effective approach.This paper puts forwards a multi-objective stochastic parallel machine scheduling problem with the consideration of deteriorating and learning effects.In it,the real processing time of jobs is calculated by using their processing speed and normal processing time.To describe this problem in a mathematical way,amultiobjective stochastic programming model aiming at realizing makespan and energy consumption minimization is formulated.Furthermore,we develop a multi-objective multi-verse optimization combined with a stochastic simulation method to deal with it.In this approach,the multi-verse optimization is adopted to find favorable solutions from the huge solution domain,while the stochastic simulation method is employed to assess them.By conducting comparison experiments on test problems,it can be verified that the developed approach has better performance in coping with the considered problem,compared to two classic multi-objective evolutionary algorithms.展开更多
Linear algebra has a very important application in physics and technical disciplines. This article conducted a questionnaire survey on the factors that affect the effect of linear algebra learning;the questionnaire co...Linear algebra has a very important application in physics and technical disciplines. This article conducted a questionnaire survey on the factors that affect the effect of linear algebra learning;the questionnaire contains several aspects of learning attitude, learning interest, learning methods, teaching methods, etc.;based on recycling data, cross chi-square test and multiple logistic regression analysis </span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">are </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">us</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">ed</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> to obtain the factors that affect the effect of linear algebra learning. The research results show that: learning methods, learning attitudes, teaching methods and elementary algebra basics are the main factors that affect the learning effect of linear algebra;among them, there are positive correlations between teaching methods, learning methods, learning attitudes and learning effects;teaching methods, learning methods 3. The three principal components of learning attitude are positively correlated. Based on the research and analysis, the following conclusions are drawn: finding a suitable learning method for the college students and maintaining a positive learning attitude are effective means to improve the linear algebra learning effect of the college students;in teaching, it is recommended to advance with the times, the teaching content and teaching methods innovate to stimulate students’ interest in learning</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">,</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> thus improv</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">ing</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> the learning effect of college students’ linear algebra courses.展开更多
The main purpose of this paper is to test the production efficiency of different Chinese property industrial enterprises.Based on the large sample panel data of industrial enterprises of the National Bureau of Statist...The main purpose of this paper is to test the production efficiency of different Chinese property industrial enterprises.Based on the large sample panel data of industrial enterprises of the National Bureau of Statistics,we found that although the production efficiency of China-funded enterprises is generally weaker than foreign-funded enterprises,some China-funded enterprises have better learning ability.On the one hand,dynamic analysis found that private enterprises have significant learning ability.On the other hand,the results of convergence analysis show that China’s private enterprises have the potential to gradually catch up with the frontier level of world production efficiency and have better learning ability to catch up potential.And state-owned enterprises tend to be more efficient at the beginning of their establishment,but their productivity is fairly slow to improve,especially for state-owned enterprises with high efficiency sub-samples,so that it’s hard for them to continue improving their efficiency.Institutional analysis found that the marketization process helped the China enterprises to improve their learning ability and China should continue to strengthen the reform of property rights and promote the marketization process.展开更多
In this note,we point out that the dynamic programming algorithms for the proportionate flowshop scheduling problems presented by Mor et al.(J Sched 23:61–641,2020)are incorrect by counterexamples.Moreover,we propose...In this note,we point out that the dynamic programming algorithms for the proportionate flowshop scheduling problems presented by Mor et al.(J Sched 23:61–641,2020)are incorrect by counterexamples.Moreover,we propose new dynamic programming algorithms to solve the corresponding problems.展开更多
This paper considers stock halts to study the impact of stock liquidity loss on the managerial learning effect based on stock prices.We examine stock halts’impact on corporate innovation and find that discretionary h...This paper considers stock halts to study the impact of stock liquidity loss on the managerial learning effect based on stock prices.We examine stock halts’impact on corporate innovation and find that discretionary halts hinder innovation.We also find that discretionary halts reduce information quality and increase financial constraints and agent costs.Cross-sectional tests show that this negative impact is more pronounced in samples with high shareholding ratios by large shareholders,institutional investors and private firms.The results indicate that the loss of non-institutional stock trading rights,represented by discretionary stock halts,affects revelatory price efficiency in the secondary market,hinders managers’learning effect and affects enterprises’production and operation decisions.These findings have policy implications for stock circulation-right protection and Chinese capital-market reform.展开更多
In the context of digital transformation in education,student learning adaptability and learning effectiveness are important indicators for measuring the quality of higher education teaching.By studying the correlatio...In the context of digital transformation in education,student learning adaptability and learning effectiveness are important indicators for measuring the quality of higher education teaching.By studying the correlation between student learning adaptability and learning effectiveness in a digital education environ-ment,we analyze the relevant factors that affect learning effectiveness,providing an accurate scientific basis for improving students’online learning adaptability,ensuring the quality of education and teaching in the new environment,and pro-moting the process of digital transformation in education.Based on the analysis of questionnaire survey data on the learning adaptability and learning effectiveness of 2,373 students in Grade 2023 of a vocational college in western China,a struc-tural equation model was constructed to explore the positive predictive relationship between learning adaptability and learning effectiveness.Through cluster analy-sis,the survey subjects were classified intofive categories:skilled technology,active participation,passive adaptation,adaptation difficulties,and resistance to change.Combined with the research results,the following implications are drawn:the implementation of personalized teaching strategies;the integration of technol-ogy into curriculum design;the optimization and innovation of learning resources;and the multidimensional evaluation of learning effectiveness.展开更多
In a learning effect environment, the machine improves continuously as a result of repeating the same or similar jobs, hence the later a given job is scheduled in the sequence, the shorter its processing time is. In t...In a learning effect environment, the machine improves continuously as a result of repeating the same or similar jobs, hence the later a given job is scheduled in the sequence, the shorter its processing time is. In this paper, we consider a new general learning effect, i.e. Dejong＇s learning effect. Using this Dejong＇s learning effect polynomial solutions for the single machine makespan minimization problem, total flow time minimization problem and two classes of single machine multi-criteria problems are obtained.展开更多
Uncertainty is certain in the world of uncertainty.This study revisits an economic production quantity(EPQ)model with shortages for stock-dependent demand of the items with reworking and disposing of the imperfect one...Uncertainty is certain in the world of uncertainty.This study revisits an economic production quantity(EPQ)model with shortages for stock-dependent demand of the items with reworking and disposing of the imperfect ones over a random planning horizon under the joint effect of inflation and time value of money,where the expected time length is imprecise in nature.Transmission of learning effect has been incorporated to reduce the defective production.The total expected profit over the random planning horizon is maximized subject to the imprecise space constraint.The possibility,necessity and credibility measures have been introduced to defuzzify the model.The simulation-based genetic algorithm is used to make decision for the above EPQ model in different measures of uncertainty.The model is illustrated through an example.Sensitivity analysis shows the impacts of different parameters on the objective function in the model.展开更多
This paper deals with seru scheduling problems with multiple due windows assignment and DeJong’s learning effect.Specific time intervals are assigned to jobs with multiple due windows and learning effect is introduce...This paper deals with seru scheduling problems with multiple due windows assignment and DeJong’s learning effect.Specific time intervals are assigned to jobs with multiple due windows and learning effect is introduced to characterize the decrease of processing times with the accumulation of the working experience.We assume that the set of jobs assigned to each due window is independent,and no inclusion exists between due windows.The objective is to determine the optimal due window positions and sizes,the set of jobs assigned to each due window,and the optimal schedule in each seru to minimize a multidimensional function,which consists of the earliness and tardiness punishment cost,as well as the due window related starting time and size cost.We find that when the number of jobs and the due windows assigned to each seru are pre-specified in advance,the problem can be solved in polynomial time.Meanwhile,the impacts of the due-window allocation strategy and learning effect on the total cost are respectively discussed based on numerical examples and special cases.The results show that if each seru is assigned with the same number of due windows,the total cost can be reduced with the increasing ratio of the due-window number to the to-be-processed job number.Furthermore,with an increasing learning effect,the total cost will be decreased.展开更多
As an important teaching method in the era of education informatization 2.0,the smart classroom has become a hot topic in terms of whether it can really improve students’learning effectiveness.Many scholars have carr...As an important teaching method in the era of education informatization 2.0,the smart classroom has become a hot topic in terms of whether it can really improve students’learning effectiveness.Many scholars have carried out empirical studies in this field,but the conclusions are not the same.By the use of meta-analysis,this study quantitatively analyzes 48 experimental and quasi-experimental studies in China and other countries to explore the smart classroom’s effect and influencing factors.The results show that,on the whole,the smart classroom has a better-than-average promotion effect on students’learning effectiveness;from the perspective of moderating variables,the learning outcome of smart classrooms is influenced by the factors of learning stage,knowledge type,teaching cycle,class scale,and equipment condition,but is not moderated by the factors of subject,teaching strategy,and evaluation tool.Specifically,smart classrooms can become a suitable partner for large-class teaching,short-term courses,and experimental courses.However,the misuse of technology and equipment should be avoided in the application process.展开更多
Objective:To systematically evaluate the influence of scaffolding instruction on the learning effect of nursing students in China.Methods:Through the databases of CNKI,Wanfang,VIP,CBM,PubMed,Cochrane Library,Embase an...Objective:To systematically evaluate the influence of scaffolding instruction on the learning effect of nursing students in China.Methods:Through the databases of CNKI,Wanfang,VIP,CBM,PubMed,Cochrane Library,Embase and Web of Science,the randomized controlled trials of scaffolding instruction in nursing field were collected from the establishment of the databases to the publication in March 2022.After literature screening,data extraction and quality evaluation,meta-analysis was performed using RevMan5.3 and Stata16.0 software.Results:Nineteen articles were included,with a total of 2,340 nursing students.Meta-analysis results showed that,compared with the traditional teaching method,the scaffolding instruction was significantly better in nursing students’theoretical examination scores(SMD=1.37,95%CI:1.00 to 1.75,P<0.001),operation skill scores(SMD=1.83,95%CI:1.23 to 2.42,P<0.001),communication ability(SMD=1.51,95%CI:0.70 to 2.32,P=0.0003)and teaching satisfaction(P<0.05).Conclusion:Scaffolding instruction can improve the theoretical and operational scores of nursing students,and it also has a positive impact on communication ability and teaching satisfaction.This teaching method deserves to be applied and promoted in the field of nursing education.展开更多
Against the backdrop of the digital transformation of vocational education,informal digital learning of foreign language(hereinafter referred to as IDLFL)is an emerging learning model with significant potential for en...Against the backdrop of the digital transformation of vocational education,informal digital learning of foreign language(hereinafter referred to as IDLFL)is an emerging learning model with significant potential for enabling individualized and autonomous learning and improving workplace English proficiency among Higher Vocational Colleges(hereinafter referred to as HVC)students.This study explores how Chinese foreign language teachers in HVC perceive and understand HVC students’IDLFL.Primary data are collected through questionnaires and interviews,and qualitative analysis is conducted based on grounded theory to reveal effective ways to improve the foreign language learning outcomes of HVC students through IDLFL and the corresponding strategies that HVC language teachers should adopt.However,this study also emphasizes the need to be wary of overstating the impact and role of IDLFL in teaching practice.展开更多
Lead （Pb） is ubiquitous in the environment, and low-level Pb exposure can cause neurotoxicity and irreversible damage to children＇s cognition, learning and memory ability. Nutritional intervention is an effective m...Lead （Pb） is ubiquitous in the environment, and low-level Pb exposure can cause neurotoxicity and irreversible damage to children＇s cognition, learning and memory ability. Nutritional intervention is an effective method to prevent Pb poisoning. Mul- berry is rich in anthocyanins, possessing protective effects for nerves. This study investigated the neuroprotective effects of mulberry extract （ME） against Pb-induced learning and memory deficits in mice. The results showed that the learning and memory abilities of mice, assessed using the Morris test, improved significantly after treatment with ME at a dose of 100 mg/kg body weight. The level of Pb in the brains of mice in the three ME intervention groups decreased significantly, while NO production and anti-oxidant enzymes were significantly restored. It is suggested that ME inhibits Pb-induced neurotoxicity by reversing Pb-induced alterations in the aspect of neurotoxic effects and improving learning and memory.展开更多
BACKGROUND： Tetramethylpyrazine （TMP） presents the effect of anti-platelet aggregation, reduces arteria resistance, increases cerebral blood flow, and improves microcirculation. OBJECTIVE： To observe the effects o...BACKGROUND： Tetramethylpyrazine （TMP） presents the effect of anti-platelet aggregation, reduces arteria resistance, increases cerebral blood flow, and improves microcirculation. OBJECTIVE： To observe the effects of TMP on the learning and memory abilities and the number of neurons in cortex and hippocampus after focal cerebral ischemia in rats DESIGN： A randomized controlled tria SETTING： Department of Human Anatomy and Histological Embryology, School of Medicine, Xi＇an Jiaotong University. MATERIALS： Fifty adult male Sprague-Dawley rats, weighing 250-300 g were supplied by the Experimental Animal Center, School of Medicine, Xi＇an Jiaotong University. TMP was purchased from Wuxi Seventh Pharmaceutical Co.Ltd （Lot Number： 2004051106, Specification： 2 mL/piece）. METHODS ： The experiments were carried out in School of Medicine of Xi＇an Jiaotong University from June 2004 to May 2005. The 50 rats were randomly divided into five groups according to the random number table method： sham-operated group, cerebral ischemia control group, low-dose TMP group, middle-dose TMP group and high-dose TMP group, 10 rats in each group. Rats in the TMP groups were immediately treated with intraperitoneal injection of TMP of 40, 80 and 120 mg/kg respectively, and those in the sham-operated group and cerebral ischemia control group were injected intraperitoneally by isovolume saline, once a day for 14 days successively. On the 15^th day, the spatial learning and memory abilities of the rats were assessed with the Morris water maze test, and then the changes of neuron numbers in cortex and hippocampus were observed by Nissl staining of brain sections. MAIN OUTCOME MEASURES ： The results of Morris water maze test and the changes of neuron numbers in cortex and hippocampus by Nissl staining of brain sections were observed. RESULTS： Finally 39 rats were involved in the analysis of results, and the other 11 died of excessive anesthesia or failure in model establishment. ① The rats in the cerebral ischemia control group manifested obvious spatial cognitive deficits in the place navigation trial and spatial probe trial. The mean values of escape latency in the sham-operated group, low, middle and high-dose TMP groups were obviously shorter than that in the cerebral ischemia control group [（23.92±2.21）, （41.84±3.74）, （39.50 ±3.80）, （31.38_±3.72）, （61.60±3.61） s, P 〈 0.05-0.01]. In the spatial probe trial, significant differences in the percentage of time spending in the former platform quadrant and frequency of crossing the former platform site in the sham-operated group, lose, middle and high-dose TMP groups were obviously higher or more than those in the cerebral ischemia control group [（36.27±3.42） %, （35.84±2.54）%, （38.43±3.08）%, （36.51±1.96）%, （22.24±3.46）%; （11 ±1 ）, （10±1）, （8_±1）, （8±1）, （4±1） times, P 〈 0.01]. ② In the morphological observation, the numbers of neurons in ipsilateral （left） parietal cortex in the sham-operated group, low, middle and high-dose TMP groups were obviously more than that in the cerebral ischemia control group [（98±8）, （65±5）, （53±6）, （57±6）, （37±6）/0.625 mm^2, P 〈 0.01], but the number of neurons in left hippocampus had no obvious differences among the groups （P 〉 0.05）. CONCLUSION ： TMP can improve obviously the spatial learning and memory function after permanent focal cerebral ischemia in rats, and the neuroprotective role of the drug in cortex may be involved in its mechanism.展开更多
English online learning has been common trend in the world, how to teach and learn effectively in EFL classes through online environment is an urgent study. The purpose of the study to analyze the factors of affecting...English online learning has been common trend in the world, how to teach and learn effectively in EFL classes through online environment is an urgent study. The purpose of the study to analyze the factors of affecting the effectiveness of online teaching and learning in EFL classes in college. We build up a three-dimensional model in the perspective of teacher, learner and technology. And we propose the strategies of improving the effectiveness of online teaching and learning in EFL classes in college in the dimensions of teacher, learner and technology.展开更多
基金Exploration and Research on the Construction of Teaching Resources for the“Virtual Reality Technology”Course in the Context of Artificial Intelligence。
文摘With the rapid development of artificial intelligence technology,the development of virtual reality technology has received increasing attention in various fields.Based on the difficulties in the course construction of“Virtual Reality Technology”,this paper adopts a questionnaire survey method to study the learning effects of students majoring in digital media technology at Guangxi University of Finance and Economics regarding the“Virtual Reality Technology”course.The research mainly involves four aspects:learning content,teaching effectiveness,learning experience,and future development needs.The research analysis in this paper not only provides strong support for the construction of a first-class course in“Virtual Reality Technology”but also offers references for the course construction of digital media technology majors in other universities.
文摘In order to explore the relationship between college students’English learning motivation and learning effect,this paper uses a questionnaire survey to investigate and analyze the English classroom learning motivation of first-year non-English majors.Based on the final English score,the paper analyzes the correlation between English learning motivation and learning effect.
基金Guangxi Key Laboratory of Financial Big Data Fund Project(Guikejizi[2021]No.5)Research on the Innovation of Teaching Models for Foreign Professional Courses in China-UK Joint Education Under the Background of Internationalization-Taking Guangxi University of Finance and Economics as an Example(2023XJJG26)Exploration and Practice of Digital Media Technology Talent Training Models in the Context of New Productive Forces(XGK202423)。
文摘In the context of internationalization,China-UK Joint Education Programs are receiving increasing attention from universities.Based on the difficulties faced in China-UK Joint Education Program,this paper adopts a questionnaire survey method to study the learning effectiveness of students majoring in digital media technology in the China-UK Joint Education Program at Guangxi University of Finance and Economics,focusing on four aspects:learning materials,learning content,teacher conditions,and student learning outcomes.The research analysis in this paper not only provides strong support for the construction of China-UK Joint Education Program but also offers references for other China-UK Joint Education Programs.
文摘In this paper we consider a single-machine scheduling model with deteriorating jobs and simultaneous learning, and we introduce polynomial solutions for single machine makespan minimization, total flow times minimization and maximum lateness minimization corresponding to the first and second special cases of our model under some agreeable conditions. However, corresponding to the third special case of our model, we show that the optimal schedules may be different from those of the classical version for the above objective functions.
文摘In the course of program comprehension and analysis,we have carried out an effectiveness oriented hybrid teaching mode,and carried out the reform of student-centered teaching methods.The teaching content puts forward specific solution cases from the perspective of industrial practice.Latest literatures from top conferences are analyzed and disused in class,so as to track the state art of research and practice.Practical project is assigned to improve students’practice and innovation ability.Teaching,learning and practice are closely integrated.In each link,students are guided to carry out autonomous and inquiry learning to improve their learning effectiveness.Good learning results have been achieved.
文摘Currently,energy conservation draws wide attention in industrial manufacturing systems.In recent years,many studies have aimed at saving energy consumption in the process of manufacturing and scheduling is regarded as an effective approach.This paper puts forwards a multi-objective stochastic parallel machine scheduling problem with the consideration of deteriorating and learning effects.In it,the real processing time of jobs is calculated by using their processing speed and normal processing time.To describe this problem in a mathematical way,amultiobjective stochastic programming model aiming at realizing makespan and energy consumption minimization is formulated.Furthermore,we develop a multi-objective multi-verse optimization combined with a stochastic simulation method to deal with it.In this approach,the multi-verse optimization is adopted to find favorable solutions from the huge solution domain,while the stochastic simulation method is employed to assess them.By conducting comparison experiments on test problems,it can be verified that the developed approach has better performance in coping with the considered problem,compared to two classic multi-objective evolutionary algorithms.
文摘Linear algebra has a very important application in physics and technical disciplines. This article conducted a questionnaire survey on the factors that affect the effect of linear algebra learning;the questionnaire contains several aspects of learning attitude, learning interest, learning methods, teaching methods, etc.;based on recycling data, cross chi-square test and multiple logistic regression analysis </span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">are </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">us</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">ed</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> to obtain the factors that affect the effect of linear algebra learning. The research results show that: learning methods, learning attitudes, teaching methods and elementary algebra basics are the main factors that affect the learning effect of linear algebra;among them, there are positive correlations between teaching methods, learning methods, learning attitudes and learning effects;teaching methods, learning methods 3. The three principal components of learning attitude are positively correlated. Based on the research and analysis, the following conclusions are drawn: finding a suitable learning method for the college students and maintaining a positive learning attitude are effective means to improve the linear algebra learning effect of the college students;in teaching, it is recommended to advance with the times, the teaching content and teaching methods innovate to stimulate students’ interest in learning</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">,</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> thus improv</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">ing</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> the learning effect of college students’ linear algebra courses.
基金The financial support from Chinese National Planning Office of Philosophy and Social Science(Project Title:Research on Trade Credit under Technology Innovation Strategy,Project No.:17CJY006)Surface Project of“Social Science Found of Shandong Province”(Project Title:Study on the Mechanism of Informal Finance Promoting Innovation in Shandong Province,Project No.:19CJJJ23)Key Project of“Shandong University Humanities and Social Sciences”(Project Title:the Mechanism of Commercial Credit Influencing Technological Innovation:an Empirical Study of Shandong Enterprises,Project No.:J17RZ005).
文摘The main purpose of this paper is to test the production efficiency of different Chinese property industrial enterprises.Based on the large sample panel data of industrial enterprises of the National Bureau of Statistics,we found that although the production efficiency of China-funded enterprises is generally weaker than foreign-funded enterprises,some China-funded enterprises have better learning ability.On the one hand,dynamic analysis found that private enterprises have significant learning ability.On the other hand,the results of convergence analysis show that China’s private enterprises have the potential to gradually catch up with the frontier level of world production efficiency and have better learning ability to catch up potential.And state-owned enterprises tend to be more efficient at the beginning of their establishment,but their productivity is fairly slow to improve,especially for state-owned enterprises with high efficiency sub-samples,so that it’s hard for them to continue improving their efficiency.Institutional analysis found that the marketization process helped the China enterprises to improve their learning ability and China should continue to strengthen the reform of property rights and promote the marketization process.
基金Supported by the National Nature Science Foundation of China(No.11871213).
文摘In this note,we point out that the dynamic programming algorithms for the proportionate flowshop scheduling problems presented by Mor et al.(J Sched 23:61–641,2020)are incorrect by counterexamples.Moreover,we propose new dynamic programming algorithms to solve the corresponding problems.
基金funded by grants from the Natural Science Foundation of China(No.7227213271872048).
文摘This paper considers stock halts to study the impact of stock liquidity loss on the managerial learning effect based on stock prices.We examine stock halts’impact on corporate innovation and find that discretionary halts hinder innovation.We also find that discretionary halts reduce information quality and increase financial constraints and agent costs.Cross-sectional tests show that this negative impact is more pronounced in samples with high shareholding ratios by large shareholders,institutional investors and private firms.The results indicate that the loss of non-institutional stock trading rights,represented by discretionary stock halts,affects revelatory price efficiency in the secondary market,hinders managers’learning effect and affects enterprises’production and operation decisions.These findings have policy implications for stock circulation-right protection and Chinese capital-market reform.
基金supported by the Education Department of Hainan Province(project number:Hnky2023-80)supported by the Education Department of Hainan Province(project number:Hnjg2023ZD-75).
文摘In the context of digital transformation in education,student learning adaptability and learning effectiveness are important indicators for measuring the quality of higher education teaching.By studying the correlation between student learning adaptability and learning effectiveness in a digital education environ-ment,we analyze the relevant factors that affect learning effectiveness,providing an accurate scientific basis for improving students’online learning adaptability,ensuring the quality of education and teaching in the new environment,and pro-moting the process of digital transformation in education.Based on the analysis of questionnaire survey data on the learning adaptability and learning effectiveness of 2,373 students in Grade 2023 of a vocational college in western China,a struc-tural equation model was constructed to explore the positive predictive relationship between learning adaptability and learning effectiveness.Through cluster analy-sis,the survey subjects were classified intofive categories:skilled technology,active participation,passive adaptation,adaptation difficulties,and resistance to change.Combined with the research results,the following implications are drawn:the implementation of personalized teaching strategies;the integration of technol-ogy into curriculum design;the optimization and innovation of learning resources;and the multidimensional evaluation of learning effectiveness.
基金Tianyuan Grant from National Natural Science Foundations (10426008)National Science Foundation of China (10001007)Foundation of Shenyang Institute of Aeronautial Engineering (05YB08)
文摘In a learning effect environment, the machine improves continuously as a result of repeating the same or similar jobs, hence the later a given job is scheduled in the sequence, the shorter its processing time is. In this paper, we consider a new general learning effect, i.e. Dejong＇s learning effect. Using this Dejong＇s learning effect polynomial solutions for the single machine makespan minimization problem, total flow time minimization problem and two classes of single machine multi-criteria problems are obtained.
文摘Uncertainty is certain in the world of uncertainty.This study revisits an economic production quantity(EPQ)model with shortages for stock-dependent demand of the items with reworking and disposing of the imperfect ones over a random planning horizon under the joint effect of inflation and time value of money,where the expected time length is imprecise in nature.Transmission of learning effect has been incorporated to reduce the defective production.The total expected profit over the random planning horizon is maximized subject to the imprecise space constraint.The possibility,necessity and credibility measures have been introduced to defuzzify the model.The simulation-based genetic algorithm is used to make decision for the above EPQ model in different measures of uncertainty.The model is illustrated through an example.Sensitivity analysis shows the impacts of different parameters on the objective function in the model.
基金the National Natural Science Foundation of China(NSFC),under grant Nos.71401075 and 71801129System Science and Enterprise Development Research Center,under grant No.Xq22B06。
文摘This paper deals with seru scheduling problems with multiple due windows assignment and DeJong’s learning effect.Specific time intervals are assigned to jobs with multiple due windows and learning effect is introduced to characterize the decrease of processing times with the accumulation of the working experience.We assume that the set of jobs assigned to each due window is independent,and no inclusion exists between due windows.The objective is to determine the optimal due window positions and sizes,the set of jobs assigned to each due window,and the optimal schedule in each seru to minimize a multidimensional function,which consists of the earliness and tardiness punishment cost,as well as the due window related starting time and size cost.We find that when the number of jobs and the due windows assigned to each seru are pre-specified in advance,the problem can be solved in polynomial time.Meanwhile,the impacts of the due-window allocation strategy and learning effect on the total cost are respectively discussed based on numerical examples and special cases.The results show that if each seru is assigned with the same number of due windows,the total cost can be reduced with the increasing ratio of the due-window number to the to-be-processed job number.Furthermore,with an increasing learning effect,the total cost will be decreased.
基金the National Ethnic Education and Research Development Project“Research on Typical Cases of Teaching by Double-Professionally-Titled Teachers in Ethnic Minority Areas in the Information Age”(No.ZXYB18004).
文摘As an important teaching method in the era of education informatization 2.0,the smart classroom has become a hot topic in terms of whether it can really improve students’learning effectiveness.Many scholars have carried out empirical studies in this field,but the conclusions are not the same.By the use of meta-analysis,this study quantitatively analyzes 48 experimental and quasi-experimental studies in China and other countries to explore the smart classroom’s effect and influencing factors.The results show that,on the whole,the smart classroom has a better-than-average promotion effect on students’learning effectiveness;from the perspective of moderating variables,the learning outcome of smart classrooms is influenced by the factors of learning stage,knowledge type,teaching cycle,class scale,and equipment condition,but is not moderated by the factors of subject,teaching strategy,and evaluation tool.Specifically,smart classrooms can become a suitable partner for large-class teaching,short-term courses,and experimental courses.However,the misuse of technology and equipment should be avoided in the application process.
文摘Objective:To systematically evaluate the influence of scaffolding instruction on the learning effect of nursing students in China.Methods:Through the databases of CNKI,Wanfang,VIP,CBM,PubMed,Cochrane Library,Embase and Web of Science,the randomized controlled trials of scaffolding instruction in nursing field were collected from the establishment of the databases to the publication in March 2022.After literature screening,data extraction and quality evaluation,meta-analysis was performed using RevMan5.3 and Stata16.0 software.Results:Nineteen articles were included,with a total of 2,340 nursing students.Meta-analysis results showed that,compared with the traditional teaching method,the scaffolding instruction was significantly better in nursing students’theoretical examination scores(SMD=1.37,95%CI:1.00 to 1.75,P<0.001),operation skill scores(SMD=1.83,95%CI:1.23 to 2.42,P<0.001),communication ability(SMD=1.51,95%CI:0.70 to 2.32,P=0.0003)and teaching satisfaction(P<0.05).Conclusion:Scaffolding instruction can improve the theoretical and operational scores of nursing students,and it also has a positive impact on communication ability and teaching satisfaction.This teaching method deserves to be applied and promoted in the field of nursing education.
文摘Against the backdrop of the digital transformation of vocational education,informal digital learning of foreign language(hereinafter referred to as IDLFL)is an emerging learning model with significant potential for enabling individualized and autonomous learning and improving workplace English proficiency among Higher Vocational Colleges(hereinafter referred to as HVC)students.This study explores how Chinese foreign language teachers in HVC perceive and understand HVC students’IDLFL.Primary data are collected through questionnaires and interviews,and qualitative analysis is conducted based on grounded theory to reveal effective ways to improve the foreign language learning outcomes of HVC students through IDLFL and the corresponding strategies that HVC language teachers should adopt.However,this study also emphasizes the need to be wary of overstating the impact and role of IDLFL in teaching practice.
基金supported by the National Natural Science Foundation of China(No.31371733)
文摘Lead （Pb） is ubiquitous in the environment, and low-level Pb exposure can cause neurotoxicity and irreversible damage to children＇s cognition, learning and memory ability. Nutritional intervention is an effective method to prevent Pb poisoning. Mul- berry is rich in anthocyanins, possessing protective effects for nerves. This study investigated the neuroprotective effects of mulberry extract （ME） against Pb-induced learning and memory deficits in mice. The results showed that the learning and memory abilities of mice, assessed using the Morris test, improved significantly after treatment with ME at a dose of 100 mg/kg body weight. The level of Pb in the brains of mice in the three ME intervention groups decreased significantly, while NO production and anti-oxidant enzymes were significantly restored. It is suggested that ME inhibits Pb-induced neurotoxicity by reversing Pb-induced alterations in the aspect of neurotoxic effects and improving learning and memory.
基金the National Natural Science Foundation of China, No. 30170300 30300109
文摘BACKGROUND： Tetramethylpyrazine （TMP） presents the effect of anti-platelet aggregation, reduces arteria resistance, increases cerebral blood flow, and improves microcirculation. OBJECTIVE： To observe the effects of TMP on the learning and memory abilities and the number of neurons in cortex and hippocampus after focal cerebral ischemia in rats DESIGN： A randomized controlled tria SETTING： Department of Human Anatomy and Histological Embryology, School of Medicine, Xi＇an Jiaotong University. MATERIALS： Fifty adult male Sprague-Dawley rats, weighing 250-300 g were supplied by the Experimental Animal Center, School of Medicine, Xi＇an Jiaotong University. TMP was purchased from Wuxi Seventh Pharmaceutical Co.Ltd （Lot Number： 2004051106, Specification： 2 mL/piece）. METHODS ： The experiments were carried out in School of Medicine of Xi＇an Jiaotong University from June 2004 to May 2005. The 50 rats were randomly divided into five groups according to the random number table method： sham-operated group, cerebral ischemia control group, low-dose TMP group, middle-dose TMP group and high-dose TMP group, 10 rats in each group. Rats in the TMP groups were immediately treated with intraperitoneal injection of TMP of 40, 80 and 120 mg/kg respectively, and those in the sham-operated group and cerebral ischemia control group were injected intraperitoneally by isovolume saline, once a day for 14 days successively. On the 15^th day, the spatial learning and memory abilities of the rats were assessed with the Morris water maze test, and then the changes of neuron numbers in cortex and hippocampus were observed by Nissl staining of brain sections. MAIN OUTCOME MEASURES ： The results of Morris water maze test and the changes of neuron numbers in cortex and hippocampus by Nissl staining of brain sections were observed. RESULTS： Finally 39 rats were involved in the analysis of results, and the other 11 died of excessive anesthesia or failure in model establishment. ① The rats in the cerebral ischemia control group manifested obvious spatial cognitive deficits in the place navigation trial and spatial probe trial. The mean values of escape latency in the sham-operated group, low, middle and high-dose TMP groups were obviously shorter than that in the cerebral ischemia control group [（23.92±2.21）, （41.84±3.74）, （39.50 ±3.80）, （31.38_±3.72）, （61.60±3.61） s, P 〈 0.05-0.01]. In the spatial probe trial, significant differences in the percentage of time spending in the former platform quadrant and frequency of crossing the former platform site in the sham-operated group, lose, middle and high-dose TMP groups were obviously higher or more than those in the cerebral ischemia control group [（36.27±3.42） %, （35.84±2.54）%, （38.43±3.08）%, （36.51±1.96）%, （22.24±3.46）%; （11 ±1 ）, （10±1）, （8_±1）, （8±1）, （4±1） times, P 〈 0.01]. ② In the morphological observation, the numbers of neurons in ipsilateral （left） parietal cortex in the sham-operated group, low, middle and high-dose TMP groups were obviously more than that in the cerebral ischemia control group [（98±8）, （65±5）, （53±6）, （57±6）, （37±6）/0.625 mm^2, P 〈 0.01], but the number of neurons in left hippocampus had no obvious differences among the groups （P 〉 0.05）. CONCLUSION ： TMP can improve obviously the spatial learning and memory function after permanent focal cerebral ischemia in rats, and the neuroprotective role of the drug in cortex may be involved in its mechanism.
文摘English online learning has been common trend in the world, how to teach and learn effectively in EFL classes through online environment is an urgent study. The purpose of the study to analyze the factors of affecting the effectiveness of online teaching and learning in EFL classes in college. We build up a three-dimensional model in the perspective of teacher, learner and technology. And we propose the strategies of improving the effectiveness of online teaching and learning in EFL classes in college in the dimensions of teacher, learner and technology.
