This study used a descriptive-quantitative research method as it describes the profile of Chinese university professors in terms of age,gender,and educational background.It also described the leadership virtues in ter...This study used a descriptive-quantitative research method as it describes the profile of Chinese university professors in terms of age,gender,and educational background.It also described the leadership virtues in terms of prudence,fortitude,temperance,and justice;professional self-esteem in terms of career choice and adaptability,career satisfaction and values,career impact and fulfillment,and career competence and evaluation;and teaching management in terms of teaching management and evaluation,the area of teaching and research activities,and the area of collective lesson planning activities.Diversity leadership training and instructional management training are provided to meet the needs of different groups of faculty and staff of different gender,age,and education levels.Individualized professional development plans are based on the personal characteristics and needs of professors,particularly in the areas of leadership,teaching management,and career satisfaction.To address the relationship among leadership virtues,professional self-esteem,and teaching management,long-term,in-depth research is encouraged to better understand the dynamics between them.Based on the results,this paper recommends the implementation of the proposed professional development plan.展开更多
BACKGROUND The Cariostat caries activity test(CAT)was used to evaluate the effectiveness of personalized oral hygiene management combining oral health education and professional mechanical tooth cleaning on the oral h...BACKGROUND The Cariostat caries activity test(CAT)was used to evaluate the effectiveness of personalized oral hygiene management combining oral health education and professional mechanical tooth cleaning on the oral health status of pregnant women.AIM To investigate whether personalized oral hygiene management enhances the oral health status of pregnant women.METHODS A total of 114 pregnant women who were examined at Dalian Women’s and Children’s Medical Center were divided into four groups:High-risk experimental group(n=29;CAT score≥2;received personalized oral hygiene management training),low-risk experimental group(n=29;CAT score≤1;received oral health education),high-risk control group(n=28;CAT score≥2),and low-risk control group(n=28;CAT score≤1).No hygiene intervention was provided to control groups.CAT scores at different times were compared using independent samples t-test and least significant difference t-test.RESULTS No significant difference in baseline CAT scores was observed between the experimental and control groups,either in the high-risk or low-risk groups.CAT scores were reduced significantly after 3(1.74±0.47 vs 2.50±0.38,P<0.0001)and 6 months(0.53±0.50 vs 2.45±0.42,P<0.0001)of personalized oral hygiene management intervention but not after oral health education alone(0.43±0.39 vs 0.46±0.33,P>0.05 and 0.45±0.36 vs 0.57±0.32,P>0.05,respectively).Within groups,the decrease in CAT scores was significant(2.43±0.44 vs 1.74±0.47 vs 0.53±0.50,P<0.0001)for only the high-risk experimental group.CONCLUSION Personalized oral hygiene management is effective in improving the oral health of pregnant women and can improve pregnancy outcomes and the oral health of the general population.展开更多
In the new era,an important task is how farmers’professional cooperatives to better adapt to new development environment and effectively solve the problems that"who will cultivate land"and"who does agr...In the new era,an important task is how farmers’professional cooperatives to better adapt to new development environment and effectively solve the problems that"who will cultivate land"and"who does agriculture depend on"in the future.In this paper,model and development direction of farmers’professional cooperatives in Long’an County of Guangxi are analyzed and studied based on realistic development background of Guangxi.展开更多
From two aspects:the composition of scientific research management institutions and the tasks undertaken by scientific research management departments,the present situation of scientific and technological management t...From two aspects:the composition of scientific research management institutions and the tasks undertaken by scientific research management departments,the present situation of scientific and technological management team in agricultural research institutes is expounded.Some problems existed in the scientific and technological management team of provincial agricultural research institutes are analyzed,such as uneven knowledge structure of scientific research management personnel,low degree of specialization,poor stability,lack of professional and systematic job training,etc.Professional development countermeasures are proposed,such as optimizing the structure of scientific research management team,establishing a professional management system with the characteristics of agricultural scientific research institutions,formulating corresponding evaluation mechanism for scientific research management personnel,and strengthening the training of agricultural scientific research management personnel.展开更多
It has been proved by years of research that if the function of examination management cannot be fully understood or be used effectively, the humanities education and train of professional quality for medical students...It has been proved by years of research that if the function of examination management cannot be fully understood or be used effectively, the humanities education and train of professional quality for medical students will not make a fundamental achievement. Because it is not only an academic training but also the examination management and the humanities cultivation have a close connection. The humanities cultivation which is based on the core of virtue requires a good campus environment. Therefore, we should adjust to the medical students＇ humanities quality training requirements, making the targeted reform and innovation of examination management.展开更多
1. Domestic Market and ForeignMarketIt is a new reality that China’s domesticmarket has been increasinglyinternationalized after China’s entering intothe WTO. However, most Chineseenterprises have no strength now to...1. Domestic Market and ForeignMarketIt is a new reality that China’s domesticmarket has been increasinglyinternationalized after China’s entering intothe WTO. However, most Chineseenterprises have no strength now to competewith top corporations in the world, andremain difficult to stand firmly even theyhave gone outside of China due to a lot ofsevere non-tariff barriers. Therefore, Chineseenterprises should attach more importanceto domestic market in recent period, in orderto survive themselves at first. The展开更多
Academic profession＇s management modes in western developed countriesinclude three types： American-German mode,French mode and British mode. They have obvious Features and Experience. Their standards of qualificatio...Academic profession＇s management modes in western developed countriesinclude three types： American-German mode,French mode and British mode. They have obvious Features and Experience. Their standards of qualification and consummate the engagement system for faculty are clear; training system is consummate; academic profession develops fast and performance evaluation is very solid. Therefore, it is worthy to learn from such modes to Ameliorate the management and promote the development of academic profession in our country展开更多
In the development of family enterprises of feed and veterinary drugs in China,there are many problems,such as lack of organic integration of human capital and social human capital.This paper introduced development th...In the development of family enterprises of feed and veterinary drugs in China,there are many problems,such as lack of organic integration of human capital and social human capital.This paper introduced development thread of family enterprises of feed and veterinary drugs in China,analyzed theories and practical development requirement for improving professional manager mechanism,and came up with recommendations including establishing proper employing system,incentive and restraint mechanism,corporate culture,and professional manager market.展开更多
Research topic of this paper includes importance of theoretical knowledge on performance of firms＇ professionals. Research question is how theory affects the performance. Answer might become thorough competence of pr...Research topic of this paper includes importance of theoretical knowledge on performance of firms＇ professionals. Research question is how theory affects the performance. Answer might become thorough competence of professionals and task performance. With this sense, two case studis are obtained from Drucker＇s works （2009; 2015）. Therefore, research method covers case study approaches. Furthermore, firms produce national GDP in an economy. There are several functions in firm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc. All have managers such as accounting manager, finance manager, marketing manager, etc. Performance of managers is crucial to fLrm performance. Because performance of managers might become one determinator of firm performance. Therefore, HRM may have an impact on GDP through managers. Because productions and sales of firms affect GDPs on an economy. Moreover, professionals or managers must have theoretical knowledge in their field. Because theoretical knowledge increases their performance at work. In conclusion, study reveals that managers may have impact on firm performance; and theory may increase task performance of employees.展开更多
Background: Inadequate human resources are a major constraint to improving global health. The health sector is characterized by a high turnover coupled with internal as well as external brain drain but there is little...Background: Inadequate human resources are a major constraint to improving global health. The health sector is characterized by a high turnover coupled with internal as well as external brain drain but there is little information on intention to leave among health professionals in public health centers of Jimma Zone, Oromia Regional State. The aim of this study is to assess intention to leave and associated factors among health professionals in public health centers of Jimma Zone, southwest Ethiopia. Methods: A cross-sectional quantitative and qualitative study was conducted on seven randomly selected woredas (districts) which have 53 public health centers. All health professionals in sampled district public health centers were included (n = 505). Factor analysis was employed for all Likert scale instruments to extract factor(s) representing each of the scales using SPSS version 16.0. The qualitative data was analyzed by thematic analysis methods. Ethical approval was obtained from Jimma University. Results: Four hundred fifty five (90.1%) health professionals participated in the study;out of this, 290 (63.7%) had intention to leave. Among variables, job satisfaction (Beta = -0.298, (95% CI, -0.568 to -0.029), working environment (Beta = -0.612, (95% CI, -0.955 to -0.270), and organizational management (Beta = -0.552, (95% CI, 0.289 to 0.815) had statistically significant association with intention to leave among health professionals in public health centers of Jimma Zone. Conclusions: The overall intention to leave among health professionals was high. Level of job satisfaction, working environment, work pressure, and organizational management had statistically significant association with intention to leave. Thus, responsible bodies should aggressively work on the concerns identified, like, improvements in salary, promotion in terms of training/educational opportunity, improving working environment, and transfer of health professionals, and improvement of the leadership skills of managers.展开更多
Firms produce national GDP in an economy. There are several functions in f＇Lrm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc.. Al...Firms produce national GDP in an economy. There are several functions in f＇Lrm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc.. All have managers such as accounting manager, finance manager, marketing manager, etc.. The performance of managers is crucial to firm performance, because the performance of managers might become one determinant of fLrm performance. Therefore, HRM may have an impact on GDP through managers, because productions and sales of firms affect GDPs and economy. Further, professionals or managers must have theoretical knowledge in their field, as theoretical knowledge increases their performance at work.展开更多
Firms produce national GDP in an economy. There are several functions in firm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc. All h...Firms produce national GDP in an economy. There are several functions in firm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc. All have managers such as accounting manager, fmance manager, marketing manager, etc. Performance of managers is crucial to firm performance. Because performance of managers might become one determinator of firm performance. Therefore, HRM may have an impact on GDP through managers. Because productions and sales of firms affect GDPs in an economy.展开更多
The aim of this paper is to examine the opportunities and problems presented by the increasing availability of technologies which is capable of enhancing sporting performance and identifying the risks in sports for cr...The aim of this paper is to examine the opportunities and problems presented by the increasing availability of technologies which is capable of enhancing sporting performance and identifying the risks in sports for creating educational and sports management practices to lead with justice, honesty, and beneficence. A questionnaire is developed to ascertain the social determinants and risks of health aspects of sports in a sample of professionals and amateurs. Descriptive and correlation analysis were used for data analysis. The study identifies health risks connected with the intensive loading of locomotors system, poor working conditions which cause working trauma and diseases as well as low level of health culture regarding the effects of performance-enhancing drugs including anabolic steroids, stimulants, human growth hormone, and supplements. There are arguments that the quality of sport education will be achieved by addressing the study of sports ethics coupled with a study of management and law.展开更多
Teachers＇ teaching innovation abilities in financial management courses are very important to train the major of financial management undergraduate students＇ innovation sense, spirits and abilities. This paper first...Teachers＇ teaching innovation abilities in financial management courses are very important to train the major of financial management undergraduate students＇ innovation sense, spirits and abilities. This paper firstly explores the structure of teaching innovation abilities, characteristics of creative teachers. Secondly, combined with teaching practice, this paper inquires into how to explore students＇ innovative abilities, how to teach differently according to different students, and how to guide correctly. Finally, from the perspective of department and office environments, continuing education and teachers＇ self-questioning, this paper probes into how to train professional teachers＇ teaching innovation abilities in financial management courses.展开更多
Establishment of farmers' professional cooperatives is an effective approach of settling conflicts between small-scale production of rural households and great market, however, there are still many problems such a...Establishment of farmers' professional cooperatives is an effective approach of settling conflicts between small-scale production of rural households and great market, however, there are still many problems such as low level of standardization, unscientific market positioning, poor capacity of mitigating risks, and unfavorable ecological benefits. This study, based on field investigation data and successful support experience, further explored operation and management problems existing in Jilin Farming Cooperative, and proposed pertinent solutions so as to enhance the high-efficiency and standard operation of farmers' professional cooperatives in Jilin Province and even China.展开更多
Professional learning communities(PLCs)have seen a rapid spread all around the world over the past 30 years.Since then it has been proved that they can improve teaching quality and thereby the achievement of students,...Professional learning communities(PLCs)have seen a rapid spread all around the world over the past 30 years.Since then it has been proved that they can improve teaching quality and thereby the achievement of students,and so PLCs have attracted increasing attention especially from education systems.In China,PLCs have been developed vigorously within schools since the implementation of the‘New Curriculum Reform’in 2000.However,the west has paid scant attention to and were not familiar with them since most research in this field in China was published in Chinese.Furthermore,PLCs are influenced by contextual and cultural factors,and therefore PLCs in Chinese education systems are different from those in Anglo-American settings due to long-standing cultural differences,which require consideration.Therefore,this research will investigate the PLCs in China that may be of interest.Many recent studies have shown that,although PLCs have made significant progress in Chinese urban middle schools through the enthusiastic efforts of educators and scholars,there are still several barriers.The primary purpose of this research is to review the development of PLCs and additionally to analyse the challenges faced by the principals.展开更多
文摘This study used a descriptive-quantitative research method as it describes the profile of Chinese university professors in terms of age,gender,and educational background.It also described the leadership virtues in terms of prudence,fortitude,temperance,and justice;professional self-esteem in terms of career choice and adaptability,career satisfaction and values,career impact and fulfillment,and career competence and evaluation;and teaching management in terms of teaching management and evaluation,the area of teaching and research activities,and the area of collective lesson planning activities.Diversity leadership training and instructional management training are provided to meet the needs of different groups of faculty and staff of different gender,age,and education levels.Individualized professional development plans are based on the personal characteristics and needs of professors,particularly in the areas of leadership,teaching management,and career satisfaction.To address the relationship among leadership virtues,professional self-esteem,and teaching management,long-term,in-depth research is encouraged to better understand the dynamics between them.Based on the results,this paper recommends the implementation of the proposed professional development plan.
基金Dalian Science and Technology Plan Project,No 2022080102.
文摘BACKGROUND The Cariostat caries activity test(CAT)was used to evaluate the effectiveness of personalized oral hygiene management combining oral health education and professional mechanical tooth cleaning on the oral health status of pregnant women.AIM To investigate whether personalized oral hygiene management enhances the oral health status of pregnant women.METHODS A total of 114 pregnant women who were examined at Dalian Women’s and Children’s Medical Center were divided into four groups:High-risk experimental group(n=29;CAT score≥2;received personalized oral hygiene management training),low-risk experimental group(n=29;CAT score≤1;received oral health education),high-risk control group(n=28;CAT score≥2),and low-risk control group(n=28;CAT score≤1).No hygiene intervention was provided to control groups.CAT scores at different times were compared using independent samples t-test and least significant difference t-test.RESULTS No significant difference in baseline CAT scores was observed between the experimental and control groups,either in the high-risk or low-risk groups.CAT scores were reduced significantly after 3(1.74±0.47 vs 2.50±0.38,P<0.0001)and 6 months(0.53±0.50 vs 2.45±0.42,P<0.0001)of personalized oral hygiene management intervention but not after oral health education alone(0.43±0.39 vs 0.46±0.33,P>0.05 and 0.45±0.36 vs 0.57±0.32,P>0.05,respectively).Within groups,the decrease in CAT scores was significant(2.43±0.44 vs 1.74±0.47 vs 0.53±0.50,P<0.0001)for only the high-risk experimental group.CONCLUSION Personalized oral hygiene management is effective in improving the oral health of pregnant women and can improve pregnancy outcomes and the oral health of the general population.
基金Supported by Key Projects of Think Tanks in Guangxi Social Sciences in 2019(GXSK201904)Nanning Scientific Research and Technological Development Plan Project(20182100)Guangxi Test Station of Characteristic Crops Rich in Selenium(GUITS2016011).
文摘In the new era,an important task is how farmers’professional cooperatives to better adapt to new development environment and effectively solve the problems that"who will cultivate land"and"who does agriculture depend on"in the future.In this paper,model and development direction of farmers’professional cooperatives in Long’an County of Guangxi are analyzed and studied based on realistic development background of Guangxi.
基金Supported by the Project of Human Resources and Social Security in Hebei Province(JRS-2022-3102)。
文摘From two aspects:the composition of scientific research management institutions and the tasks undertaken by scientific research management departments,the present situation of scientific and technological management team in agricultural research institutes is expounded.Some problems existed in the scientific and technological management team of provincial agricultural research institutes are analyzed,such as uneven knowledge structure of scientific research management personnel,low degree of specialization,poor stability,lack of professional and systematic job training,etc.Professional development countermeasures are proposed,such as optimizing the structure of scientific research management team,establishing a professional management system with the characteristics of agricultural scientific research institutions,formulating corresponding evaluation mechanism for scientific research management personnel,and strengthening the training of agricultural scientific research management personnel.
文摘It has been proved by years of research that if the function of examination management cannot be fully understood or be used effectively, the humanities education and train of professional quality for medical students will not make a fundamental achievement. Because it is not only an academic training but also the examination management and the humanities cultivation have a close connection. The humanities cultivation which is based on the core of virtue requires a good campus environment. Therefore, we should adjust to the medical students＇ humanities quality training requirements, making the targeted reform and innovation of examination management.
文摘1. Domestic Market and ForeignMarketIt is a new reality that China’s domesticmarket has been increasinglyinternationalized after China’s entering intothe WTO. However, most Chineseenterprises have no strength now to competewith top corporations in the world, andremain difficult to stand firmly even theyhave gone outside of China due to a lot ofsevere non-tariff barriers. Therefore, Chineseenterprises should attach more importanceto domestic market in recent period, in orderto survive themselves at first. The
文摘Academic profession＇s management modes in western developed countriesinclude three types： American-German mode,French mode and British mode. They have obvious Features and Experience. Their standards of qualification and consummate the engagement system for faculty are clear; training system is consummate; academic profession develops fast and performance evaluation is very solid. Therefore, it is worthy to learn from such modes to Ameliorate the management and promote the development of academic profession in our country
基金Supported by Project of Business Management Cultivation Discipline in Department of Business and Trade,Rongchang Campus,Southwest University(RCQG207001)
文摘In the development of family enterprises of feed and veterinary drugs in China,there are many problems,such as lack of organic integration of human capital and social human capital.This paper introduced development thread of family enterprises of feed and veterinary drugs in China,analyzed theories and practical development requirement for improving professional manager mechanism,and came up with recommendations including establishing proper employing system,incentive and restraint mechanism,corporate culture,and professional manager market.
文摘Research topic of this paper includes importance of theoretical knowledge on performance of firms＇ professionals. Research question is how theory affects the performance. Answer might become thorough competence of professionals and task performance. With this sense, two case studis are obtained from Drucker＇s works （2009; 2015）. Therefore, research method covers case study approaches. Furthermore, firms produce national GDP in an economy. There are several functions in firm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc. All have managers such as accounting manager, finance manager, marketing manager, etc. Performance of managers is crucial to fLrm performance. Because performance of managers might become one determinator of firm performance. Therefore, HRM may have an impact on GDP through managers. Because productions and sales of firms affect GDPs on an economy. Moreover, professionals or managers must have theoretical knowledge in their field. Because theoretical knowledge increases their performance at work. In conclusion, study reveals that managers may have impact on firm performance; and theory may increase task performance of employees.
文摘Background: Inadequate human resources are a major constraint to improving global health. The health sector is characterized by a high turnover coupled with internal as well as external brain drain but there is little information on intention to leave among health professionals in public health centers of Jimma Zone, Oromia Regional State. The aim of this study is to assess intention to leave and associated factors among health professionals in public health centers of Jimma Zone, southwest Ethiopia. Methods: A cross-sectional quantitative and qualitative study was conducted on seven randomly selected woredas (districts) which have 53 public health centers. All health professionals in sampled district public health centers were included (n = 505). Factor analysis was employed for all Likert scale instruments to extract factor(s) representing each of the scales using SPSS version 16.0. The qualitative data was analyzed by thematic analysis methods. Ethical approval was obtained from Jimma University. Results: Four hundred fifty five (90.1%) health professionals participated in the study;out of this, 290 (63.7%) had intention to leave. Among variables, job satisfaction (Beta = -0.298, (95% CI, -0.568 to -0.029), working environment (Beta = -0.612, (95% CI, -0.955 to -0.270), and organizational management (Beta = -0.552, (95% CI, 0.289 to 0.815) had statistically significant association with intention to leave among health professionals in public health centers of Jimma Zone. Conclusions: The overall intention to leave among health professionals was high. Level of job satisfaction, working environment, work pressure, and organizational management had statistically significant association with intention to leave. Thus, responsible bodies should aggressively work on the concerns identified, like, improvements in salary, promotion in terms of training/educational opportunity, improving working environment, and transfer of health professionals, and improvement of the leadership skills of managers.
文摘Firms produce national GDP in an economy. There are several functions in f＇Lrm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc.. All have managers such as accounting manager, finance manager, marketing manager, etc.. The performance of managers is crucial to firm performance, because the performance of managers might become one determinant of fLrm performance. Therefore, HRM may have an impact on GDP through managers, because productions and sales of firms affect GDPs and economy. Further, professionals or managers must have theoretical knowledge in their field, as theoretical knowledge increases their performance at work.
文摘Firms produce national GDP in an economy. There are several functions in firm management, and managers operate those functions. They are logistics, supply, stock, finance, accounting, marketing, production, etc. All have managers such as accounting manager, fmance manager, marketing manager, etc. Performance of managers is crucial to firm performance. Because performance of managers might become one determinator of firm performance. Therefore, HRM may have an impact on GDP through managers. Because productions and sales of firms affect GDPs in an economy.
文摘The aim of this paper is to examine the opportunities and problems presented by the increasing availability of technologies which is capable of enhancing sporting performance and identifying the risks in sports for creating educational and sports management practices to lead with justice, honesty, and beneficence. A questionnaire is developed to ascertain the social determinants and risks of health aspects of sports in a sample of professionals and amateurs. Descriptive and correlation analysis were used for data analysis. The study identifies health risks connected with the intensive loading of locomotors system, poor working conditions which cause working trauma and diseases as well as low level of health culture regarding the effects of performance-enhancing drugs including anabolic steroids, stimulants, human growth hormone, and supplements. There are arguments that the quality of sport education will be achieved by addressing the study of sports ethics coupled with a study of management and law.
文摘Teachers＇ teaching innovation abilities in financial management courses are very important to train the major of financial management undergraduate students＇ innovation sense, spirits and abilities. This paper firstly explores the structure of teaching innovation abilities, characteristics of creative teachers. Secondly, combined with teaching practice, this paper inquires into how to explore students＇ innovative abilities, how to teach differently according to different students, and how to guide correctly. Finally, from the perspective of department and office environments, continuing education and teachers＇ self-questioning, this paper probes into how to train professional teachers＇ teaching innovation abilities in financial management courses.
基金Supported by Research on Scientific Renovation and Sustainable Economic Development (Program of Humanities and Social Science Foundation of the Ministry of Education,09YJA790080)Systematic Analysis of Agricultural Scientific and Technological Progress in Jilin Province (the "Eleventh Five-year" Research Program of Social Science of Jilin Department of Education)Operation Design of Farmers'Professional Cooperatives in Gongzhuling City (Undergraduates' Inno-vative Experiment Program of Jilin University,2010C83280)
文摘Establishment of farmers' professional cooperatives is an effective approach of settling conflicts between small-scale production of rural households and great market, however, there are still many problems such as low level of standardization, unscientific market positioning, poor capacity of mitigating risks, and unfavorable ecological benefits. This study, based on field investigation data and successful support experience, further explored operation and management problems existing in Jilin Farming Cooperative, and proposed pertinent solutions so as to enhance the high-efficiency and standard operation of farmers' professional cooperatives in Jilin Province and even China.
文摘Professional learning communities(PLCs)have seen a rapid spread all around the world over the past 30 years.Since then it has been proved that they can improve teaching quality and thereby the achievement of students,and so PLCs have attracted increasing attention especially from education systems.In China,PLCs have been developed vigorously within schools since the implementation of the‘New Curriculum Reform’in 2000.However,the west has paid scant attention to and were not familiar with them since most research in this field in China was published in Chinese.Furthermore,PLCs are influenced by contextual and cultural factors,and therefore PLCs in Chinese education systems are different from those in Anglo-American settings due to long-standing cultural differences,which require consideration.Therefore,this research will investigate the PLCs in China that may be of interest.Many recent studies have shown that,although PLCs have made significant progress in Chinese urban middle schools through the enthusiastic efforts of educators and scholars,there are still several barriers.The primary purpose of this research is to review the development of PLCs and additionally to analyse the challenges faced by the principals.
