This paper explores the reform and practice of software engineering-related courses based on the competency model of the Computing Curricula,and proposes some measures of teaching reform and talent cultivation in soft...This paper explores the reform and practice of software engineering-related courses based on the competency model of the Computing Curricula,and proposes some measures of teaching reform and talent cultivation in software engineering.The teaching reform emphasizes student-centered education,and focuses on the cultivation and enhancement of students’knowledge,skills,and dispositions.Based on the three elements of the competency model,specific measures of teaching reform are proposed for some professional courses in software engineering,to strengthen course relevance,improve knowledge systems,reform practical modes with a focus on skill development,and cultivate good dispositions through student-centered education.The teaching reform’s attempts and practice are conducted in some courses such as Advanced Web Technologies,Software Engineering,and Intelligent Terminal Systems and Application Development.Through the analysis and comparison of the implementation effects,significant improvements are observed in teaching effectiveness,students’mastery of knowledge and skills are noticeably improved,and the expected goals of the teaching reform are achieved.展开更多
The competency model is a widely-used human resource management tool that can be applied to human resource management in different regions,different fields,different enterprises,and positions of different nature,which...The competency model is a widely-used human resource management tool that can be applied to human resource management in different regions,different fields,different enterprises,and positions of different nature,which can improve the objectivity,reliability,authenticity and fairness of enterprise human resource management,give full play to the promotion of human resource management to the development of enterprise operations,and help enterprises achieve development and manage-ment goals.展开更多
Dependent competing risks model is a practical model in the analysis of lifetime and failure modes.The dependence can be captured using a statistical tool to explore the re-lationship among failure causes.In this pape...Dependent competing risks model is a practical model in the analysis of lifetime and failure modes.The dependence can be captured using a statistical tool to explore the re-lationship among failure causes.In this paper,an Archimedean copula is chosen to describe the dependence in a constant-stress accelerated life test.We study the Archimedean copula based dependent competing risks model using parametric and nonparametric methods.The parametric likelihood inference is presented by deriving the general expression of likelihood function based on assumed survival Archimedean copula associated with the model parameter estimation.Combining the nonparametric estimation with progressive censoring and the non-parametric copula estimation,we introduce a nonparametric reliability estimation method given competing risks data.A simulation study and a real data analysis are conducted to show the performance of the estimation methods.展开更多
Enterprises are continuously aiming at improving the execution of processes to achieve a competitive edge.One of the established ways of improving process performance is to assign the most appropriate resources to eac...Enterprises are continuously aiming at improving the execution of processes to achieve a competitive edge.One of the established ways of improving process performance is to assign the most appropriate resources to each task of the process.However,evaluations of business process improvement approaches have established that a method that can guide decision-makers to identify the most appropriate resources for a task of process improvement in a structured way,is missing.It is because the relationship between resources and tasks is less understood and advancement in business process intelligence is also ignored.To address this problem an integrated resource classification framework is presenting that identifies competence,suitability,and preference as the relationship of task with resources.But,only the competence relationship of human resources with a task is presented in this research as a resource competence model.Furthermore,the competency calculation method is presented as a user guider layer for business process intelligencebased resource competence evaluation.The computed capabilities serve as a basic input for choosing the most appropriate resources for each task of the process.Applicability of method is illustrated through a heathcare case study.展开更多
The shortage of individuals with the abilities to perform a job position successfully demands innovative educational approaches. Competency Based Education (CBE) is a methodology that focuses on endowing students with...The shortage of individuals with the abilities to perform a job position successfully demands innovative educational approaches. Competency Based Education (CBE) is a methodology that focuses on endowing students with the skills demanded by the in-dustries and evaluates them regarding what they are able to do. A bank of competen-cies that students must acquire in a university academic program was discussed. Occupational trends as well as associated skills demands were detected. This research could be a source of practical knowledge for those organizations seeking to understand CBE foundations and for those wishing to initiate their path through this global educational trend.展开更多
Unraveling the nature of complex condensed matter systems is of paramount importance in a variety of fields such as pharmacology and materials science.Here we report the synthesis,by the dynamic covalent chemistry(DCC...Unraveling the nature of complex condensed matter systems is of paramount importance in a variety of fields such as pharmacology and materials science.Here we report the synthesis,by the dynamic covalent chemistry(DCC),of a robust,continuous,and low-defect glassy covalent organic network(GCON).The direct imaging of the molecular structure clearly shows the amorphous nature of GCONs,which consists with the competing(nano)crystallite model,not Zachariasen continuous random networks(Z-CRN).Remarkably,the microscopic friction properties were measured on GCONs by atomic force microscopy(AFM),and the GCONs showed lower friction force in comparison with crystalline covalent organic frameworks(COFs).展开更多
There has been lack of studies that investigate the causal impact of alcohol consumption on health and mortality in middle-aged and older populations in China.This cohort study aims to investigate whether alcohol use ...There has been lack of studies that investigate the causal impact of alcohol consumption on health and mortality in middle-aged and older populations in China.This cohort study aims to investigate whether alcohol use increases poor health and mortality risk in middle-aged and older Chinese population.The study is a cohort study design that was based on the China Health and Retired Longitudinal study(CHARLS).Measures of poor health and alcohol use are self-rated poor/very poor and alcohol use.Competing Cox proportional hazard regression model(CPHM)was used to model the data and the hazards ratio(HR)of poor health,mortality for current and former drinkers versus nondrinkers and current drinkers versus former drinkers was estimated using CPHM after adjusting for deign-effects and covariates.This study found significantly increased risk of all-cause mortality among current(adjusted HR=1.54 and P=0.0423)and former drinkers(Adjusted HR=1.52 and P=0.0096)compared to lifetime nondrinkers among middle-aged and senior Chinese people;significantly increased hazard of poor health among current drinkers(Adjusted HR=1.26 and P=0.0443)compared with lifetime nondrinkers.The hazards of all-cause mortality and self-rated poor health increased with the amount and frequency of alcohol drinking,and drinking years.This study found that either former or current drinkers self-rated having a poor health and had a significantly increased risk of all-cause mortality compared with nondrinkers.Heavy drinkers had poor health status and higher risk of mortality compared with those who drank light or moderate amount of alcohol in middle-aged and senior Chinese population.展开更多
基金supported by the Teaching Reform Projects of Colleges in Hunan Province(No.HNJG-2022-1410,No.HNJG-2020-0489,No.HNJG-2022-0785,and No.HNJG-2022-0792)Industry-universityCooperative Project of Ministry of Education(No.220506194233806)the Teaching Reform Project of Hunan University of Science and Technology(No.2020XXJG07)。
文摘This paper explores the reform and practice of software engineering-related courses based on the competency model of the Computing Curricula,and proposes some measures of teaching reform and talent cultivation in software engineering.The teaching reform emphasizes student-centered education,and focuses on the cultivation and enhancement of students’knowledge,skills,and dispositions.Based on the three elements of the competency model,specific measures of teaching reform are proposed for some professional courses in software engineering,to strengthen course relevance,improve knowledge systems,reform practical modes with a focus on skill development,and cultivate good dispositions through student-centered education.The teaching reform’s attempts and practice are conducted in some courses such as Advanced Web Technologies,Software Engineering,and Intelligent Terminal Systems and Application Development.Through the analysis and comparison of the implementation effects,significant improvements are observed in teaching effectiveness,students’mastery of knowledge and skills are noticeably improved,and the expected goals of the teaching reform are achieved.
文摘The competency model is a widely-used human resource management tool that can be applied to human resource management in different regions,different fields,different enterprises,and positions of different nature,which can improve the objectivity,reliability,authenticity and fairness of enterprise human resource management,give full play to the promotion of human resource management to the development of enterprise operations,and help enterprises achieve development and manage-ment goals.
基金Supported by the National Natural Science Foundation of China(12101476,12061091,11901134)the Fundamental Research Funds for the Central Universities(ZYTS23054,QTZX22054)+1 种基金the Yunnan Funda-mental Research Projects(202101AT070103)the Natural Science Basic Research Program of Shaanxi Province(2020JQ-285).
文摘Dependent competing risks model is a practical model in the analysis of lifetime and failure modes.The dependence can be captured using a statistical tool to explore the re-lationship among failure causes.In this paper,an Archimedean copula is chosen to describe the dependence in a constant-stress accelerated life test.We study the Archimedean copula based dependent competing risks model using parametric and nonparametric methods.The parametric likelihood inference is presented by deriving the general expression of likelihood function based on assumed survival Archimedean copula associated with the model parameter estimation.Combining the nonparametric estimation with progressive censoring and the non-parametric copula estimation,we introduce a nonparametric reliability estimation method given competing risks data.A simulation study and a real data analysis are conducted to show the performance of the estimation methods.
文摘Enterprises are continuously aiming at improving the execution of processes to achieve a competitive edge.One of the established ways of improving process performance is to assign the most appropriate resources to each task of the process.However,evaluations of business process improvement approaches have established that a method that can guide decision-makers to identify the most appropriate resources for a task of process improvement in a structured way,is missing.It is because the relationship between resources and tasks is less understood and advancement in business process intelligence is also ignored.To address this problem an integrated resource classification framework is presenting that identifies competence,suitability,and preference as the relationship of task with resources.But,only the competence relationship of human resources with a task is presented in this research as a resource competence model.Furthermore,the competency calculation method is presented as a user guider layer for business process intelligencebased resource competence evaluation.The computed capabilities serve as a basic input for choosing the most appropriate resources for each task of the process.Applicability of method is illustrated through a heathcare case study.
文摘The shortage of individuals with the abilities to perform a job position successfully demands innovative educational approaches. Competency Based Education (CBE) is a methodology that focuses on endowing students with the skills demanded by the in-dustries and evaluates them regarding what they are able to do. A bank of competen-cies that students must acquire in a university academic program was discussed. Occupational trends as well as associated skills demands were detected. This research could be a source of practical knowledge for those organizations seeking to understand CBE foundations and for those wishing to initiate their path through this global educational trend.
基金This work was financially supported by the National Science Foundation of China(Nos.52073208,21872103,and 51633006)the Ministry of Science and Technology of China(No 2016YFB0401100).
文摘Unraveling the nature of complex condensed matter systems is of paramount importance in a variety of fields such as pharmacology and materials science.Here we report the synthesis,by the dynamic covalent chemistry(DCC),of a robust,continuous,and low-defect glassy covalent organic network(GCON).The direct imaging of the molecular structure clearly shows the amorphous nature of GCONs,which consists with the competing(nano)crystallite model,not Zachariasen continuous random networks(Z-CRN).Remarkably,the microscopic friction properties were measured on GCONs by atomic force microscopy(AFM),and the GCONs showed lower friction force in comparison with crystalline covalent organic frameworks(COFs).
基金funded by the National Institute on Ageing(R01 AG030153,RC2 AG036619,R03 AG043052).
文摘There has been lack of studies that investigate the causal impact of alcohol consumption on health and mortality in middle-aged and older populations in China.This cohort study aims to investigate whether alcohol use increases poor health and mortality risk in middle-aged and older Chinese population.The study is a cohort study design that was based on the China Health and Retired Longitudinal study(CHARLS).Measures of poor health and alcohol use are self-rated poor/very poor and alcohol use.Competing Cox proportional hazard regression model(CPHM)was used to model the data and the hazards ratio(HR)of poor health,mortality for current and former drinkers versus nondrinkers and current drinkers versus former drinkers was estimated using CPHM after adjusting for deign-effects and covariates.This study found significantly increased risk of all-cause mortality among current(adjusted HR=1.54 and P=0.0423)and former drinkers(Adjusted HR=1.52 and P=0.0096)compared to lifetime nondrinkers among middle-aged and senior Chinese people;significantly increased hazard of poor health among current drinkers(Adjusted HR=1.26 and P=0.0443)compared with lifetime nondrinkers.The hazards of all-cause mortality and self-rated poor health increased with the amount and frequency of alcohol drinking,and drinking years.This study found that either former or current drinkers self-rated having a poor health and had a significantly increased risk of all-cause mortality compared with nondrinkers.Heavy drinkers had poor health status and higher risk of mortality compared with those who drank light or moderate amount of alcohol in middle-aged and senior Chinese population.
