Soil fertility management (SFM) has important implications for sustaining agricultural development and food self-sufifciency. Better understanding the determinants of farmers’ SFM can be a great help to the adoptio...Soil fertility management (SFM) has important implications for sustaining agricultural development and food self-sufifciency. Better understanding the determinants of farmers’ SFM can be a great help to the adoption of effective SFM practices. Based on a dataset of 315 plots collected from a typical rice growing area of South China, this study applied statistical method and econometric models to examine the impacts of land characteristics on farmers’ SFM practices at plot scale. Main results showed that in general land characteristics affected SFM behaviors. Securer land tenure arrangements facilitated effective practices of SFM through more diversiifed and more soil-friendly cropping pattern choices. Plot size signiifcantly reduced the intensities of phosphorus and potassium fertilizer application. Given other factors, 1 ha increase in plot size might reduce 3.0 kg ha-1 P2O5 and 1.8 kg ha-1 K2O. Plots far from the homestead were paid less attention in terms of both chemical fertilizers and manure applications. Besides, plots with better quality were put more efforts on management by applying more nitrogen and manure, and by planting green manure crops. Signiifcant differences existed in SFM practices between the surveyed villages with different socio-economic conditions. The ifndings are expected to provide important references to the policy-making incentive for improving soil quality and crop productivity.展开更多
The economic crisis in 1997-1998 increased poverty to 49.5 million,but in 2005 decreased to 35.10 million,then in 2006 increased 39.05 million.The worst communities were workers,dependent families,small farmers and fi...The economic crisis in 1997-1998 increased poverty to 49.5 million,but in 2005 decreased to 35.10 million,then in 2006 increased 39.05 million.The worst communities were workers,dependent families,small farmers and fishermen,informal sector workers,low-level civil servants,and people affected by natural disasters.The research design was cross sectional;the research was in Pangkal Pinang City in January 2016.The data were summarized by interview,observation,documentation,and Focus Group Discussion.Data analyses were flow model,product moment,and Likert scale.The result of the research shows the correlation between how to obtain the poor scholarship and the criteria of obtaining the poor scholarship that is very tight which is 0.453.The relation between the criteria of obtaining the poor scholarship and the determination of the poor scholarship is quite close which is 0.218.The relationship between the determination of the scholarship for poor students and obtaining the poor scholarship is 0.395.The correlation between how to get the poor scholarship and the poor scholarship receiver is quite close that is 0.190.The relationship between the determination of the poor scholarship and the impact of the poor scholarship is quite close that is 0.171.The relationship between using of the poor scholarship and the poor scholarship receiver is very close that is 0.297.The relation between the poor receiver and the impact of poor the scholarship is 0.270.展开更多
The Third Plenary Session of the 18th Central Committee of the CPC firstly required innovative social governance in 2013. This is the CPC's focus on safeguarding the fundamental interests of the majority of the pe...The Third Plenary Session of the 18th Central Committee of the CPC firstly required innovative social governance in 2013. This is the CPC's focus on safeguarding the fundamental interests of the majority of the people, to maximize social harmony, and to enhance the vitality of social development. The differences between governance and management are embodied in such as the governance system, legality, resource management, and comprehensive measures, etc. Compared with the way of social management, in which the government was used to controlling and ordering all social affairs, social governance pays more attention to the process of co-operations among different parties, to more emphasis on parties' co-operations and co-governance, with a continuous and interactive process of coordinated negotiations among multiple stakeholders. Social governance pays more emphasis on respect to social and political rights of members in the society, trying to stimulate the potential of social members, so that members of the community, in the process of social governance, have rights to speak, to choose and to influence; it pays more emphasis not only on maximizing autonomy of the social organizations and community, but also emphasizes the comprehensive use of a variety of means. The constructions of social governance system should mainly consist of four aspects: first, it is to improve the quality of social grassroots governance; second, it is to stimulate the vitality of social organizations; third, it tries to become an innovative and effective system to prevent and resolve social conflicts; fourth, it is to improve the public security system. To innovate the social management system, it is not only to achieve the transformation of the idea from control to service, but also to change the governance way from inflexible to flexible, thus, to finally form the social governance structure of Party leadership, government responsibility, social coordination,and public展开更多
Highway project management involves overseeing the on-site construction of a highway project,taking into account the specific circumstances and conditions of the site.This type of management requires a high level of e...Highway project management involves overseeing the on-site construction of a highway project,taking into account the specific circumstances and conditions of the site.This type of management requires a high level of expertise and is characterized by its dynamic and systematic approach.Effective on-site management can ensure the quality,cost-saving,smooth progress,and safety of highway construction.However,there are still some problems in the implementation of site management in some highway projects,which seriously affect the improvement of site management.This paper analyzes the characteristics and existing problems of highway engineering management,and puts forward the effective strategies of site management,hoping that this study will help to improve highway engineering site management.展开更多
A great deal of research found that fund performance is related to a series of personal characteristics of fund managers,but how these personal characteristics affect fund performance is still unknown.China is the mos...A great deal of research found that fund performance is related to a series of personal characteristics of fund managers,but how these personal characteristics affect fund performance is still unknown.China is the most important emerging country and the second largest economy in the world.The development of China's capital market is different from that of most developed countries.Therefore,empirical evidence on the performance of funds in developed countries often cannot be extended to the Chinese market.In addition,there is evidence that many successful fund managers in developed countries may not achieve good performance in China.Therefore,it is particularly meaningful to examine the determinants of fund performance in the Chinese market.This paper establishes a three-level framework model to study this connection.Considering return and risk,the two basic factors that affect fund performance,this paper chooses nine proxy variables:Sharpe ratio,Jensen index,Treynor index,abnormal return(α),total risk(β),non-systemic risk,standard deviation of return,stock choosing ability and time picking ability as the criteria to measure the comprehensive performance.This paper investigates China's open-end funds to fill the gap in literature on the relationship between fund managers'personal characteristics and fund performance in emerging capital markets.The results of this paper found that age,gender,fund manager years,number of funds under management,master's or doctor’s degree,MBA degree,business background and fund managers have better stock choosing ability,higher abnormal return and better overall performance has a significant positive relationship.The results of further decomposition indicate that the abnormal return is the main influencing factor of the fund's comprehensive performance;the abnormal return is also affected by the fund manager's ability of stock choosing and time picking.In addition,stock choosing ability is the main factor affecting abnormal return.Therefore,the education background of the fund manager’s personal characteristics will affect the abnormal return and ultimately affect the comprehensive performance of the fund.This paper also finds that gender and majors affect fund managers'risk control behavior.The research results in this paper have great practical significance.Firstly,it introduces a framework that can explain how the individual characteristics of fund managers affect the performance mechanism of funds.Secondly,the findings in China's stock market supplement the empirical evidence in the mature markets of developed countries.Since China is already the largest emerging economy in the world,the results of this study are of great significance not only to Chinese researchers,but also to international scholars who want to study China's capital market.Thirdly,the empirical study is of great practical significance to test the ability of fund managers to divide abnormal earnings into stock choosing ability and time picking ability.展开更多
In 1956, my former Head and Professor of the Department of Obstetrics and Gynecology KT LIM, asked me to take the initiative to establish a reproductive endocrinology unit. As China is a developing country, we wer... In 1956, my former Head and Professor of the Department of Obstetrics and Gynecology KT LIM, asked me to take the initiative to establish a reproductive endocrinology unit. As China is a developing country, we were then short of diagnostic facilities and therapeutic agents. We can learn basic knowledge and clinical experiences from the literature, but hormonal preparations were expensive and generally most of our patients were poor. We needed to find simpler, inexpensive and yet effective ways to treat our patients. In a word, we had to develop our own way.……展开更多
Based on the behavioral finance theory and the upper echelons theory, this paper employs the data of China's A-share listed companies from 2008 to 2013 as research samples, and empirically tests the effects of man...Based on the behavioral finance theory and the upper echelons theory, this paper employs the data of China's A-share listed companies from 2008 to 2013 as research samples, and empirically tests the effects of managers with different characteristics on debt financing and firm value for enterprises of different ownership nature. Results of this study indicate that the debt financing of the listed companies in China can reduce the agency cost with a positive governance effect that promotes firm value. Male, better educated, short-tenured, and financially experienced managers are more likely to be overconfident and prefer debt financing. Specifically, the manager's age, level of education, and work experience can significantly promote the effect of debt financing on firm value. Compared with SOEs, private enterprises can improve their firm value more significantly through debt financing;the education and work experience of the managers of private enterprises are more positively correlated with debt financing and can more significantly improve firm value through debt financing. This paper's findings suggest that the manager's characteristics and firm ownership nature must be taken into account to reach valid conclusions on the governance effects of debt financing on firm value. Meanwhile, these conclusions help unravel the mechanism and economic implications of debt financing, and contribute to the improvement of the capital structure decisions and human resources management practices of China's listed companies. This study not only enriches the literature and empirical evidence on the correlation between managers' characteristics and firm financing, but indicate that managers' characteristics and firm ownership are important considerations for investigating the governance effects of debt financing on firm value and have a vital impact on the formulation and implementation of firm financing decisions.展开更多
China's price fluctuations increasingly exhibit significant structural characteristics,and since 2003,there have been several rounds of significant structural price rise.The degree of structural rise in the prices...China's price fluctuations increasingly exhibit significant structural characteristics,and since 2003,there have been several rounds of significant structural price rise.The degree of structural rise in the prices of industrial and agricultural products in China is not only higher than in the general developed countries and developing countries,but also more prominent than in other transition economies.And the structural rise in the prices of Chinese industrial and agricultural products exhibits significant economic zone differences:the structural fluctuations are the greatest in the central and western regions,significantly higher than in the eastern regions as well as the national average.From the perspective of causes of structural rise in the prices of Chinese industrial and agricultural products,the government must aim to coordinate the industrial and agricultural investments and bridge the gap in the industrial and agricultural technologies and supply capacity.展开更多
[Objective] The aim was to explore the management mode on optimal re-sources al ocation of family ranch in meadow steppe. [Method] Three double repre-sentative family ranches were selected in meadow steppe of Hulunber...[Objective] The aim was to explore the management mode on optimal re-sources al ocation of family ranch in meadow steppe. [Method] Three double repre-sentative family ranches were selected in meadow steppe of Hulunber Old Barag Banner, and the study was carried out with the baseline survey. Three family ranches were selected as the demonstrative households for the corporation study, while other three family ranches with the similar conditions were looked as the non-demonstrative households for the comparison. Demonstrative households of the fami-ly ranches reduced the stocking rate, optimized the flock structure and took a winter feeding and other means to explore the different management models on plant com-munity characteristic of family ranch. [Result] The seasonal dynamic of community characteristic in family ranches showed the single-peaks curves. The seasonal dy-namics of community coverage, height and biomass in the demonstrative households showed higher compared with the non-demonstrative households, and community density in the experiment households was lower than that of the control experiment households. Community coverage, height and biomass of degraded grassland in family ranch have a great improve after optimization of management. Community coverage, height , density and biomass were increasing in fencing plot, but decreas-ing in free grazing area. Enclosure improved grassland coverage, vegetation height, density and forage yield. Leymus chinensis played an important role in plant com-munity. The important values of Leymus chinensis, Stipa baicalensis, Cleistogenes squarrosa, and Carex duriuscula were high. Leymus chinensis important value in the demonstrative households of optimal management was higher than that in the non-demonstrative households, and Carex duriuscula important value of the non-demon-strative households was significantly higher than that of the demonstrative house-holds. The indexes of Margalef richnes,Shannon-Wiener diversity, Simpson diversity and Pielou uniformity showed that the demonstrative households were higher than the non-demonstrative households. [Conclusion] The research provides theoretical ref-erences for sustainable development of pastures dominated by family ranch.展开更多
A new collusion attack on Pour-like schemes is proposed in this paper. Then, we present a collusion-free centralized multicast key management scheme based on characteristic values of members. The re-keying method that...A new collusion attack on Pour-like schemes is proposed in this paper. Then, we present a collusion-free centralized multicast key management scheme based on characteristic values of members. The re-keying method that other group members calculate new keys when a member is joining or leaving is also designed. It achieves forward secrecy and backward secrecy. Compared with typical existing centralized schemes, the storage of Group Key Controller (GKC) in our scheme halves the storage overhead of others, and communication overhead of GKC is 2 in case of joining re-keying. Especially, the leaving re-keying overhead is and the overall performance is excellent.展开更多
The purpose of this study is to investigate the characteristics of organizational leaders in the health system and the factors that motivate health workers, in order to improve health care. The research was conducted ...The purpose of this study is to investigate the characteristics of organizational leaders in the health system and the factors that motivate health workers, in order to improve health care. The research was conducted in the public health institutions in Montenegro. The objectives of the research were to investigate whether leaders affect the motivation of employees in order to implement changes in the health system. The study was implemented through the interview method on the representative sample of 603 employees in public health institutions. The factor analysis revealed the latent characteristics of the organizational leader and the factors that motivate employees in public health institutions. The result of study indicates that employees in public health perceive organizational leadership to have a good quality. Result also exposes that the strongest motivation factor is a financial incentive. Financial incentive is the main motivator for employees in the public health sector, while the participation in decision-making was the least important motivational factor. The results obtained indicate that employees are primarily focused on individual goals, which influence the acceptance of change within the health system. The role of organizational leaders in motivating is poor because obtained factor scores are not correlated. The research has shown that organizational leaders do not have a great impact on the motivation of employees in the public health sector. This has effect on the process of accepting changes, where the roles of leaders are very important, especially in providing support to employees.展开更多
Lack of preventive measure is currently the problem that implicates poor building maintenance performance and issue on sustainability of buildings in Malaysia. Whereby, preventive maintenance is an effective approach ...Lack of preventive measure is currently the problem that implicates poor building maintenance performance and issue on sustainability of buildings in Malaysia. Whereby, preventive maintenance is an effective approach to enhance the reliability and quality of a system and its components. This study seeks to investigate the characteristics of preventive maintenance towards the overall performance in building maintenance. Case study approach is adopted to identify the maintenance characteristics and aspects that lead to good performance. The research findings demonstrate that the most significant maintenance characteristics towards overall performance are skill and knowledge of maintenance labour, quality of spare parts and materials, length of predetermined maintenance interval, skill and knowledge of maintenance manager, capability to adopt maintenance equipment and technique, budget allocation for acquisition of maintenance data, reliability of maintenance data, as well as frequency of monitoring and inspection. As a conclusion, the significant maintenance characteristics must be taken into consideration to achieve optimal maintenance performance. In order to improve the effectiveness of maintenance strategy and the maintenance performance, the study recommends practice and provision of communication platform such as meeting and customer satisfaction survey that involves all the key participants from clients to customers.展开更多
At the end of 2021 to create a new model of characteristic software talent training for independent and controllable key software fields,the Ministry of Education and the Ministry of Industry and Information Technolog...At the end of 2021 to create a new model of characteristic software talent training for independent and controllable key software fields,the Ministry of Education and the Ministry of Industry and Information Technology jointly approved the establishment of the first batch of 33 Characteristic Pilot Schools of software.As a member of characteristic software schools,the HIT School of Software has been approved and will focus on the construction of 2 characteristic directions,which are large-scale industrial software and industrial professional application software.In order to achieve the goal,it is urgent to develop a comprehensive management platform to control the entire process of talent training,so that we can standardize,modelling,and digitized the entire process of characteristic software talent training.By relating all aspects of student training with and implementing the ability-index mechanisms,we will continuously collect big-data of the entire process of student growth,and generate multidimensional student ability portraits for evaluating the effect of talent training,and adjust as well as optimizing the growth path for students themselves during their studying.Employers will be able to identify talents accurately and provide effective reference for colleges to adjust training plans.This paper will analyze the needs of the platform,provide demand analysis of the platform,extract the correlation model between training,conclude the relations between ability-index activities and ability indicators,and give a reasonable overall system design scheme.展开更多
The problem investigated in this research is about the potential risk of technological hazards, which poses a perilous threat to humankind and the environment. Rapid urbanization has been increasing the population den...The problem investigated in this research is about the potential risk of technological hazards, which poses a perilous threat to humankind and the environment. Rapid urbanization has been increasing the population density in an area, elevating the risk of exposure to technological disasters. Therefore, it is necessary to detect the areas with higher chemical risk to spread awareness about the potential risk zones and reduce actual damage and casualties resulting from the hazardous substance events. The basic design of the study utilizes geospatial analysis to map the TRI (Toxics Release Inventory) facilities in the communities of Texas to establish a relationship between potential </span><span style="font-family:Verdana;">hazardous material release zones and the human population at risk. The</span><span style="font-family:Verdana;"> study identified the vulnerable counties as well as investigated how those risk areas are related to race/ethnicity, income and education. The research would contribute to the policymakers acting on the hazard situation and keep them better prepared for</span><span style="color:red;"> </span><span style="font-family:Verdana;">chemical hazards. In addition, it would help the residents and emergency managers to better understand the circumstance to mitigate the consequences as well as increase their awareness to be ready for the uncertainties in the hotspots involved in high risk of the hazards.展开更多
基金partly funded by the National Natural Science Foundation of China (71273268)
文摘Soil fertility management (SFM) has important implications for sustaining agricultural development and food self-sufifciency. Better understanding the determinants of farmers’ SFM can be a great help to the adoption of effective SFM practices. Based on a dataset of 315 plots collected from a typical rice growing area of South China, this study applied statistical method and econometric models to examine the impacts of land characteristics on farmers’ SFM practices at plot scale. Main results showed that in general land characteristics affected SFM behaviors. Securer land tenure arrangements facilitated effective practices of SFM through more diversiifed and more soil-friendly cropping pattern choices. Plot size signiifcantly reduced the intensities of phosphorus and potassium fertilizer application. Given other factors, 1 ha increase in plot size might reduce 3.0 kg ha-1 P2O5 and 1.8 kg ha-1 K2O. Plots far from the homestead were paid less attention in terms of both chemical fertilizers and manure applications. Besides, plots with better quality were put more efforts on management by applying more nitrogen and manure, and by planting green manure crops. Signiifcant differences existed in SFM practices between the surveyed villages with different socio-economic conditions. The ifndings are expected to provide important references to the policy-making incentive for improving soil quality and crop productivity.
文摘The economic crisis in 1997-1998 increased poverty to 49.5 million,but in 2005 decreased to 35.10 million,then in 2006 increased 39.05 million.The worst communities were workers,dependent families,small farmers and fishermen,informal sector workers,low-level civil servants,and people affected by natural disasters.The research design was cross sectional;the research was in Pangkal Pinang City in January 2016.The data were summarized by interview,observation,documentation,and Focus Group Discussion.Data analyses were flow model,product moment,and Likert scale.The result of the research shows the correlation between how to obtain the poor scholarship and the criteria of obtaining the poor scholarship that is very tight which is 0.453.The relation between the criteria of obtaining the poor scholarship and the determination of the poor scholarship is quite close which is 0.218.The relationship between the determination of the scholarship for poor students and obtaining the poor scholarship is 0.395.The correlation between how to get the poor scholarship and the poor scholarship receiver is quite close that is 0.190.The relationship between the determination of the poor scholarship and the impact of the poor scholarship is quite close that is 0.171.The relationship between using of the poor scholarship and the poor scholarship receiver is very close that is 0.297.The relation between the poor receiver and the impact of poor the scholarship is 0.270.
文摘The Third Plenary Session of the 18th Central Committee of the CPC firstly required innovative social governance in 2013. This is the CPC's focus on safeguarding the fundamental interests of the majority of the people, to maximize social harmony, and to enhance the vitality of social development. The differences between governance and management are embodied in such as the governance system, legality, resource management, and comprehensive measures, etc. Compared with the way of social management, in which the government was used to controlling and ordering all social affairs, social governance pays more attention to the process of co-operations among different parties, to more emphasis on parties' co-operations and co-governance, with a continuous and interactive process of coordinated negotiations among multiple stakeholders. Social governance pays more emphasis on respect to social and political rights of members in the society, trying to stimulate the potential of social members, so that members of the community, in the process of social governance, have rights to speak, to choose and to influence; it pays more emphasis not only on maximizing autonomy of the social organizations and community, but also emphasizes the comprehensive use of a variety of means. The constructions of social governance system should mainly consist of four aspects: first, it is to improve the quality of social grassroots governance; second, it is to stimulate the vitality of social organizations; third, it tries to become an innovative and effective system to prevent and resolve social conflicts; fourth, it is to improve the public security system. To innovate the social management system, it is not only to achieve the transformation of the idea from control to service, but also to change the governance way from inflexible to flexible, thus, to finally form the social governance structure of Party leadership, government responsibility, social coordination,and public
文摘Highway project management involves overseeing the on-site construction of a highway project,taking into account the specific circumstances and conditions of the site.This type of management requires a high level of expertise and is characterized by its dynamic and systematic approach.Effective on-site management can ensure the quality,cost-saving,smooth progress,and safety of highway construction.However,there are still some problems in the implementation of site management in some highway projects,which seriously affect the improvement of site management.This paper analyzes the characteristics and existing problems of highway engineering management,and puts forward the effective strategies of site management,hoping that this study will help to improve highway engineering site management.
文摘A great deal of research found that fund performance is related to a series of personal characteristics of fund managers,but how these personal characteristics affect fund performance is still unknown.China is the most important emerging country and the second largest economy in the world.The development of China's capital market is different from that of most developed countries.Therefore,empirical evidence on the performance of funds in developed countries often cannot be extended to the Chinese market.In addition,there is evidence that many successful fund managers in developed countries may not achieve good performance in China.Therefore,it is particularly meaningful to examine the determinants of fund performance in the Chinese market.This paper establishes a three-level framework model to study this connection.Considering return and risk,the two basic factors that affect fund performance,this paper chooses nine proxy variables:Sharpe ratio,Jensen index,Treynor index,abnormal return(α),total risk(β),non-systemic risk,standard deviation of return,stock choosing ability and time picking ability as the criteria to measure the comprehensive performance.This paper investigates China's open-end funds to fill the gap in literature on the relationship between fund managers'personal characteristics and fund performance in emerging capital markets.The results of this paper found that age,gender,fund manager years,number of funds under management,master's or doctor’s degree,MBA degree,business background and fund managers have better stock choosing ability,higher abnormal return and better overall performance has a significant positive relationship.The results of further decomposition indicate that the abnormal return is the main influencing factor of the fund's comprehensive performance;the abnormal return is also affected by the fund manager's ability of stock choosing and time picking.In addition,stock choosing ability is the main factor affecting abnormal return.Therefore,the education background of the fund manager’s personal characteristics will affect the abnormal return and ultimately affect the comprehensive performance of the fund.This paper also finds that gender and majors affect fund managers'risk control behavior.The research results in this paper have great practical significance.Firstly,it introduces a framework that can explain how the individual characteristics of fund managers affect the performance mechanism of funds.Secondly,the findings in China's stock market supplement the empirical evidence in the mature markets of developed countries.Since China is already the largest emerging economy in the world,the results of this study are of great significance not only to Chinese researchers,but also to international scholars who want to study China's capital market.Thirdly,the empirical study is of great practical significance to test the ability of fund managers to divide abnormal earnings into stock choosing ability and time picking ability.
文摘 In 1956, my former Head and Professor of the Department of Obstetrics and Gynecology KT LIM, asked me to take the initiative to establish a reproductive endocrinology unit. As China is a developing country, we were then short of diagnostic facilities and therapeutic agents. We can learn basic knowledge and clinical experiences from the literature, but hormonal preparations were expensive and generally most of our patients were poor. We needed to find simpler, inexpensive and yet effective ways to treat our patients. In a word, we had to develop our own way.……
文摘Based on the behavioral finance theory and the upper echelons theory, this paper employs the data of China's A-share listed companies from 2008 to 2013 as research samples, and empirically tests the effects of managers with different characteristics on debt financing and firm value for enterprises of different ownership nature. Results of this study indicate that the debt financing of the listed companies in China can reduce the agency cost with a positive governance effect that promotes firm value. Male, better educated, short-tenured, and financially experienced managers are more likely to be overconfident and prefer debt financing. Specifically, the manager's age, level of education, and work experience can significantly promote the effect of debt financing on firm value. Compared with SOEs, private enterprises can improve their firm value more significantly through debt financing;the education and work experience of the managers of private enterprises are more positively correlated with debt financing and can more significantly improve firm value through debt financing. This paper's findings suggest that the manager's characteristics and firm ownership nature must be taken into account to reach valid conclusions on the governance effects of debt financing on firm value. Meanwhile, these conclusions help unravel the mechanism and economic implications of debt financing, and contribute to the improvement of the capital structure decisions and human resources management practices of China's listed companies. This study not only enriches the literature and empirical evidence on the correlation between managers' characteristics and firm financing, but indicate that managers' characteristics and firm ownership are important considerations for investigating the governance effects of debt financing on firm value and have a vital impact on the formulation and implementation of firm financing decisions.
文摘China's price fluctuations increasingly exhibit significant structural characteristics,and since 2003,there have been several rounds of significant structural price rise.The degree of structural rise in the prices of industrial and agricultural products in China is not only higher than in the general developed countries and developing countries,but also more prominent than in other transition economies.And the structural rise in the prices of Chinese industrial and agricultural products exhibits significant economic zone differences:the structural fluctuations are the greatest in the central and western regions,significantly higher than in the eastern regions as well as the national average.From the perspective of causes of structural rise in the prices of Chinese industrial and agricultural products,the government must aim to coordinate the industrial and agricultural investments and bridge the gap in the industrial and agricultural technologies and supply capacity.
基金Supported by Special Fund for Agro-scientific Research in the Public Interest(201003019,201003061,201303060)the National Natural Science Foundation of China(41201199)+1 种基金International Science and Technology Cooperation Project(2012DFA31290)Modern Agricultural Technology System of Special Funding~~
文摘[Objective] The aim was to explore the management mode on optimal re-sources al ocation of family ranch in meadow steppe. [Method] Three double repre-sentative family ranches were selected in meadow steppe of Hulunber Old Barag Banner, and the study was carried out with the baseline survey. Three family ranches were selected as the demonstrative households for the corporation study, while other three family ranches with the similar conditions were looked as the non-demonstrative households for the comparison. Demonstrative households of the fami-ly ranches reduced the stocking rate, optimized the flock structure and took a winter feeding and other means to explore the different management models on plant com-munity characteristic of family ranch. [Result] The seasonal dynamic of community characteristic in family ranches showed the single-peaks curves. The seasonal dy-namics of community coverage, height and biomass in the demonstrative households showed higher compared with the non-demonstrative households, and community density in the experiment households was lower than that of the control experiment households. Community coverage, height and biomass of degraded grassland in family ranch have a great improve after optimization of management. Community coverage, height , density and biomass were increasing in fencing plot, but decreas-ing in free grazing area. Enclosure improved grassland coverage, vegetation height, density and forage yield. Leymus chinensis played an important role in plant com-munity. The important values of Leymus chinensis, Stipa baicalensis, Cleistogenes squarrosa, and Carex duriuscula were high. Leymus chinensis important value in the demonstrative households of optimal management was higher than that in the non-demonstrative households, and Carex duriuscula important value of the non-demon-strative households was significantly higher than that of the demonstrative house-holds. The indexes of Margalef richnes,Shannon-Wiener diversity, Simpson diversity and Pielou uniformity showed that the demonstrative households were higher than the non-demonstrative households. [Conclusion] The research provides theoretical ref-erences for sustainable development of pastures dominated by family ranch.
文摘A new collusion attack on Pour-like schemes is proposed in this paper. Then, we present a collusion-free centralized multicast key management scheme based on characteristic values of members. The re-keying method that other group members calculate new keys when a member is joining or leaving is also designed. It achieves forward secrecy and backward secrecy. Compared with typical existing centralized schemes, the storage of Group Key Controller (GKC) in our scheme halves the storage overhead of others, and communication overhead of GKC is 2 in case of joining re-keying. Especially, the leaving re-keying overhead is and the overall performance is excellent.
文摘The purpose of this study is to investigate the characteristics of organizational leaders in the health system and the factors that motivate health workers, in order to improve health care. The research was conducted in the public health institutions in Montenegro. The objectives of the research were to investigate whether leaders affect the motivation of employees in order to implement changes in the health system. The study was implemented through the interview method on the representative sample of 603 employees in public health institutions. The factor analysis revealed the latent characteristics of the organizational leader and the factors that motivate employees in public health institutions. The result of study indicates that employees in public health perceive organizational leadership to have a good quality. Result also exposes that the strongest motivation factor is a financial incentive. Financial incentive is the main motivator for employees in the public health sector, while the participation in decision-making was the least important motivational factor. The results obtained indicate that employees are primarily focused on individual goals, which influence the acceptance of change within the health system. The role of organizational leaders in motivating is poor because obtained factor scores are not correlated. The research has shown that organizational leaders do not have a great impact on the motivation of employees in the public health sector. This has effect on the process of accepting changes, where the roles of leaders are very important, especially in providing support to employees.
文摘Lack of preventive measure is currently the problem that implicates poor building maintenance performance and issue on sustainability of buildings in Malaysia. Whereby, preventive maintenance is an effective approach to enhance the reliability and quality of a system and its components. This study seeks to investigate the characteristics of preventive maintenance towards the overall performance in building maintenance. Case study approach is adopted to identify the maintenance characteristics and aspects that lead to good performance. The research findings demonstrate that the most significant maintenance characteristics towards overall performance are skill and knowledge of maintenance labour, quality of spare parts and materials, length of predetermined maintenance interval, skill and knowledge of maintenance manager, capability to adopt maintenance equipment and technique, budget allocation for acquisition of maintenance data, reliability of maintenance data, as well as frequency of monitoring and inspection. As a conclusion, the significant maintenance characteristics must be taken into consideration to achieve optimal maintenance performance. In order to improve the effectiveness of maintenance strategy and the maintenance performance, the study recommends practice and provision of communication platform such as meeting and customer satisfaction survey that involves all the key participants from clients to customers.
基金supported by the National Key Research and Development Program of China(Grant No.2020AAA0108803).
文摘At the end of 2021 to create a new model of characteristic software talent training for independent and controllable key software fields,the Ministry of Education and the Ministry of Industry and Information Technology jointly approved the establishment of the first batch of 33 Characteristic Pilot Schools of software.As a member of characteristic software schools,the HIT School of Software has been approved and will focus on the construction of 2 characteristic directions,which are large-scale industrial software and industrial professional application software.In order to achieve the goal,it is urgent to develop a comprehensive management platform to control the entire process of talent training,so that we can standardize,modelling,and digitized the entire process of characteristic software talent training.By relating all aspects of student training with and implementing the ability-index mechanisms,we will continuously collect big-data of the entire process of student growth,and generate multidimensional student ability portraits for evaluating the effect of talent training,and adjust as well as optimizing the growth path for students themselves during their studying.Employers will be able to identify talents accurately and provide effective reference for colleges to adjust training plans.This paper will analyze the needs of the platform,provide demand analysis of the platform,extract the correlation model between training,conclude the relations between ability-index activities and ability indicators,and give a reasonable overall system design scheme.
文摘The problem investigated in this research is about the potential risk of technological hazards, which poses a perilous threat to humankind and the environment. Rapid urbanization has been increasing the population density in an area, elevating the risk of exposure to technological disasters. Therefore, it is necessary to detect the areas with higher chemical risk to spread awareness about the potential risk zones and reduce actual damage and casualties resulting from the hazardous substance events. The basic design of the study utilizes geospatial analysis to map the TRI (Toxics Release Inventory) facilities in the communities of Texas to establish a relationship between potential </span><span style="font-family:Verdana;">hazardous material release zones and the human population at risk. The</span><span style="font-family:Verdana;"> study identified the vulnerable counties as well as investigated how those risk areas are related to race/ethnicity, income and education. The research would contribute to the policymakers acting on the hazard situation and keep them better prepared for</span><span style="color:red;"> </span><span style="font-family:Verdana;">chemical hazards. In addition, it would help the residents and emergency managers to better understand the circumstance to mitigate the consequences as well as increase their awareness to be ready for the uncertainties in the hotspots involved in high risk of the hazards.