Face-to-face interviews(n=860) were conducted to determine cash-gift behavior, cognition and complexity of social relations, and family water consumption for agricultural production in a typical oasis area in Northwes...Face-to-face interviews(n=860) were conducted to determine cash-gift behavior, cognition and complexity of social relations, and family water consumption for agricultural production in a typical oasis area in Northwest China. The survey results revealed cash gifts to be the second-largest expenditure(1,330 Yuan) for rural households, far beyond the average spending on health(854.1 Yuan) or education(890.8 Yuan). The amount of cash-gift expenditures indirectly reflects a family's social relations level, and our developed Social Relations Extent Coefficient—based on cash-gift and food expenditures—can directly reflect the extent or level of these relationships. Different types of farmers or farming families have different coefficients. The coefficient also shows how social station affects a family's water resource utilization, and how water is distributed among different types of farmers. Despite the current inequities, however, promotion of better agricultural techniques and large-scale cultivation in this area could help distribute water resources more equitably and effectively.展开更多
Based on the literature review of Chinese heritage resources management,a governance framework was put forward from the perspective of social network in order to deal with the conflict between heritage tourism develop...Based on the literature review of Chinese heritage resources management,a governance framework was put forward from the perspective of social network in order to deal with the conflict between heritage tourism development and heritage resources protection.First,all stakeholders including administrate departments,related enterprises,local communities and tourists should become subjects of heritage resources governance.Second,governance structure was defined which would describe the roles that all stakeholders played in the governance of heritage resources.Third,several governance mechanism including motivation and restraint mechanism,interaction and coordination mechanism,sharing and integration mechanism should be established.The network governance would balance benefi ts of all the stakeholders,avoid the phenomena such as free ride and external diseconomy and ensure the sustainable development of heritage sites.展开更多
With the promulgation and implementation of Social Assistance Interim Measures, China hasbasically established the social assistance system framework with Dibao, Three-nos people support and disasterrelief as the basi...With the promulgation and implementation of Social Assistance Interim Measures, China hasbasically established the social assistance system framework with Dibao, Three-nos people support and disasterrelief as the basis, with housing aid, medical aid ,education aid and employment aid as the support and with temporaryassistance and charity help as the supplement. The establishment of various social assistance programsundoubtedly aims to fulfil different demands of urban and rural neddy people, however,the increase of socialassistance programs does not necessarily bring about an increase in the effectiveness of social assistance. Thispaper analyzes the uncoordination of Chinas social assistance program resources and put forward related policysolutions.展开更多
Guided by the state policy of reform and opening to the outside world, the Chinese Government has, by dint of hard work over the past three decades, by and large accomplished the task of building up a human resources ...Guided by the state policy of reform and opening to the outside world, the Chinese Government has, by dint of hard work over the past three decades, by and large accomplished the task of building up a human resources and social security system. Good enough to serve China's goal of developing a socialist market economy, this system has contributed to the national endeavor to ensure and improve people's livelihood and to safeguard the stability of the reform-and-opening undertakings.展开更多
Social resources of indigenous people are valuable wealth, including the social norms, the relational network, belief, attitude as well as the social system which is accumulated from generation to generation. Those so...Social resources of indigenous people are valuable wealth, including the social norms, the relational network, belief, attitude as well as the social system which is accumulated from generation to generation. Those social resources are very important for local ecological resource management, which can help diffuseness and communion of skills and traditional conservation techniques for conserving and restoring the ecological sites. Social capital is one indicator of social resources, which is accepted widely. In order to investigate the role of social resources of indigenous people in local ecological resource management, the authors studied the relation between social capital of indigenous people and local ecological resource management, taking Zhangye City as an exam-ple. In this paper, social capital of indigenous people is quantified by constructing social capital index, composed of structural so-cial capital and cognitive social capital; local ecological resource management is quantified by constructing 'Grain for Green Pro-ject' performance index. Based on correlation analysis approach and logistic regression analysis approach, the authors analyzed the relation between social capital and 'Grain for Green Project' performance index, as well as the relations between 'Grain for Green Project' performance index and other factors such as per capita net income, medical treatment and so on. Results showed that the correlation between social capital and 'Grain for Green Project' performance index was positive, the coefficient was 0.761, with P<0.01. An increase of 1 unit in social capital is associated with an increase of 1.550 units in 'Grain for Green Project' per-formance. With factor, such as faction, per capita net income, medical treatment, increasing 1 unit, the 'Grain for Green Project' performance index will increase 3.912, 1.039 and 1.005 units, respectively.展开更多
The role of HPH(Forest Logging Concession)in developing rural communities is very significant.SLJ(Sumalindo Lestari Jaya)as HPH company has an important contribution in empowering local communities,especially in openi...The role of HPH(Forest Logging Concession)in developing rural communities is very significant.SLJ(Sumalindo Lestari Jaya)as HPH company has an important contribution in empowering local communities,especially in opening land transportation in the interior and helping to build agriculture and gardens.The existence of Sumalindo company participates in developing forest resource management with local communities,among others,increasing livelihoods,maintaining and developing biodiversity conservation and maintaining climate change.These efforts are in accordance with the regulations of the KLHK(Ministry of Environment and Forestry),that every HPH holder is required(mandatory)to obtain a certificate of“PHAPL”(Sustainable Production Natural Forest Management)and an“eco label”from the Indonesian Eco Label Institute.Besides,it is recommended that the holders of HPH concessions and HTI(Industrial Timber Plantations)have an FSC(Forest Stewardship Council)certificate from the EU(European Union),and must meet three indicator elements,namely economic,social and ecological in SFM(Sustainable Forest Management).This article examines three critical questions that show the role of Sumalindo Company in economic,ecological and social development and managing forest resources with the community as follows:(1)The role of Sumalindo company contributes to the development of road infrastructure in the interior;(2)The role of Sumalindo in improving livelihoods and economic and social empowerment of local communities;(3)The role of Sumalindo with local communities in managing forest resources,including maintaining and developing biodiversity conservation and maintaining climate change.展开更多
Africa faces significant challenges in terms of material and personnel resources for oncology interventions. This is particularly evident in South Africa, where resources are divided into high- and low-resource settin...Africa faces significant challenges in terms of material and personnel resources for oncology interventions. This is particularly evident in South Africa, where resources are divided into high- and low-resource settings. High-resource settings cater to those with financial means to access private oncology facilities. However, many breast cancer patients receive care in South Africa’s low-resource settings, such as public hospital oncology clinics. Unfortunately, these settings have limited service providers and fail to offer comprehensive interventions, resulting in poor outcomes. However, recent research has highlighted the significance of socially supportive relationships in promoting healing and overall individual well-being, and spirituality has been identified as a source of positive outcomes in cancer patients. This systematic review paper explores the feasibility of implementing support group cancer care and interventions that incorporate social support networks available in community settings, and spiritual practices facilitated by traditional healers, and religious/spiritual leaders. These interventions can be provided within low-resource settings to women diagnosed with breast cancer. Inclusive participation of spouses, children, and extended family in the support group cancer care can facilitate healing for the entire system. Focusing on the strengths and resources within communities and incorporating these complementary services, can enhance the well-being and quality of life for Black African women diagnosed with breast cancer, despite low-resource settings. This approach acknowledges the potential of community-based support networks and encourages collaboration between various stakeholders, including community health educators, nurses, lay counselors, and community volunteers, to address the complex needs of these patients.展开更多
Social stock for metal determines secondary or recoverable resources to a certain extent.Top-down analysis method for the studying of metal in social stock was given.Influences of metal consumption under three circums...Social stock for metal determines secondary or recoverable resources to a certain extent.Top-down analysis method for the studying of metal in social stock was given.Influences of metal consumption under three circumstances,that is keeping constant,varying in a linear trend and in an exponential trend,on one kind of metal’s social stock,recyclable ratio and average age were analyzed.Al-contents and Cu-contents in social stock for China during the period 2006-2009 were calculated.The results reveal that Al-contents and Cu-contents in social stock kept increasing and reached 88.9 million tons and 51.4 millions tons in 2009,respectively,their average recyclable ratios are 1.45% and 0.30%,and the average ages are 4.65 years and 6.89 years,respectively.The recyclable ratios and average ages of Al-contents and Cu-contents in social stock will rise in future along with the decline of the increasing rate of aluminum consumption and copper consumption.展开更多
A natural history museum is a museum for collection, researching and presenting natural environment and natural heritages about natural history. In the research, based on the analysis on necessity of university museum...A natural history museum is a museum for collection, researching and presenting natural environment and natural heritages about natural history. In the research, based on the analysis on necessity of university museums’ services to society in resources sharing, the difficulties and dilemmas were summarized in sharing resources of museums and the approaches for resources sharing were explored with the case of Natural History Museum of Zhengzhou Normal University in order to investigate the way for better services of university museum to the public.展开更多
Purpose: To examine, within a social–ecological framework, associations between multifaceted individual and environmental factors and habitual physical activity(HPA) among older Chinese adults.Methods: Through a mix ...Purpose: To examine, within a social–ecological framework, associations between multifaceted individual and environmental factors and habitual physical activity(HPA) among older Chinese adults.Methods: Through a mix of qualitative and quantitative methods, a survey instrument assessing various factors underlying 3 social–ecological dimensions of intrapersonal, interpersonal, and community and environmental resources was developed. Using a cross-sectional design, older adults(n = 1580, aged 67 ± 7 years) recruited from 10 communities in Shandong province completed the social–ecological survey of HPA. Data were analyzed using Partial Least Squares Path Modeling.Results: Factors related to intrapersonal(medical knowledge, motivation, physical function, sport skills, socioeconomic status, and education),interpersonal(social support, social activity, and social norms), and community and physical environmental resources(safety, capacity, availability of and access to physical activity facilities) were found to be significantly associated with older adults' participation in HPA.Conclusion: The findings provide an initial validation of a social–ecological approach to the study of HPA in China, suggesting that strategies aimed at promoting physical activity in older adults should address multiple levels of factors that may contribute to the likelihood of older Chinese adults being physically active.展开更多
With the rapid deployment of high speed railway(HSR) worldwide,both safety operation and comfort experience can be desired to evolve into a future era of intelligent transportation system.To eliminate boredom and prov...With the rapid deployment of high speed railway(HSR) worldwide,both safety operation and comfort experience can be desired to evolve into a future era of intelligent transportation system.To eliminate boredom and provide entertainment for passengers,an intranet for internal communications among passengers named as onboard social network system(SNS) is needed.In this paper,the latest progress in HSR network architectures and technology building blocks are discussed to enable the implementation of the SNS.Meanwhile,based on the device-to-device(D2 D) communication technology for proximal information interaction,SNS can be efficiently facilitated.A dynamic resource allocation algorithm is proposed to maximize the total utility of the onboard SNS,which is solved with the matching theory method.Simulation results verify the convergence and efficiency of the proposed algorithm.展开更多
To promote the application of edge com-puting in wireless blockchain networks,this paper presents a business ecosystem,where edge comput-ing is introduced to assist blockchain users in imple-menting the mining process...To promote the application of edge com-puting in wireless blockchain networks,this paper presents a business ecosystem,where edge comput-ing is introduced to assist blockchain users in imple-menting the mining process.This paper exploits re-source trading and miner competition to enable se-cure and efficient transactions in the presented busi-ness ecosystem.The resource trading problem is for-mulated as a Stackelberg game between miner candi-dates and edge computing servers,where computing,caching,and communication resources are jointly op-timized to maximize the potential profit.Partial of-floading is introduced to further enhance the system performance when compared with the existing work.We analyze the existence and uniqueness of the Nash equilibrium and Stackelberg equilibrium.Based on the optimization result,winners are selected from the set of miner candidates by bidding and constitute the mining network.Simulation results demonstrate that the proposal is able to improve the social welfare of blockchain miners,thus stimulating more blockchain users to join the mining network.展开更多
In this paper, an optimisation problem for calculating the best energy bids of a set of hydro power plants in a basin is proposed. The model is applied to a real Spanish basin for the short-term (24-hour) planning of ...In this paper, an optimisation problem for calculating the best energy bids of a set of hydro power plants in a basin is proposed. The model is applied to a real Spanish basin for the short-term (24-hour) planning of the operation. The algorithm considers the ecological flows and social consumptions required for the actual operation. One of the hydro plants is fluent, without direct-control abilities. The results show that the fluent plant can be adequately controlled by using the storage capacities of the other plants. In the simulations, the costs related to the social consumptions are more significant than those due to the ecological requirements. An estimate of the cost of providing water for social uses is performed in the study.展开更多
Major indicator of firm performance is business performance. Aims of firms and managers are to achieve firm performance. Human resource management (HRM) aims to achieve individual performance in order for firm perfo...Major indicator of firm performance is business performance. Aims of firms and managers are to achieve firm performance. Human resource management (HRM) aims to achieve individual performance in order for firm performance. Because individuals (professionals) may have an impact on business performance. European HRM is adopting principles of American HRM. This is convergence. There are two factors that may affect divergence between Europe and USA. Divergence factors are social awareness and economic viewpoint difference. First of all, European firms consider social partners in HRM. Secondly, EU is regulated market economy and USA has liberal market economy. That may create divergence between Europe and USA.展开更多
This article aims to identify the challenges in the hospitality industry in Sao Luis, Maranhao, Brazil, with the perspective of developing an organizational culture that enables the practice of corporate social respon...This article aims to identify the challenges in the hospitality industry in Sao Luis, Maranhao, Brazil, with the perspective of developing an organizational culture that enables the practice of corporate social responsibility (CSR). This study method was qualitative, exploratory, and descriptive (Richardson, 1999). The data were collected by interviews with leaders of national and international chain operating hotel companies in Sao Luis (June 2013), using the technique of content analysis. The theoretical framework was developed upon the concept of human resources management (HRM) and CSR. The research findings confirm that CSR is considered as a business strategy and that it contributes to personal and professional fulfillment of employees due to the offer of some benefits, such as remuneration and career plans, pleasurable work environments, awards, and recognition. Beyond that, findings also revealed that the hotels develop CSR activities, particularly focusing on employees, in order to provide guests' satisfaction. The main conclusions are: (1) Leadership is essential to build a culture that leads to a collective involvement in CSR actions; and (2) HRM is considered as a strategic tool for the development of CSR.展开更多
基金supported by Social Science Foundation of China(17CGL032)Gansu Provincial key research and development foundation(17YF1FA134)
文摘Face-to-face interviews(n=860) were conducted to determine cash-gift behavior, cognition and complexity of social relations, and family water consumption for agricultural production in a typical oasis area in Northwest China. The survey results revealed cash gifts to be the second-largest expenditure(1,330 Yuan) for rural households, far beyond the average spending on health(854.1 Yuan) or education(890.8 Yuan). The amount of cash-gift expenditures indirectly reflects a family's social relations level, and our developed Social Relations Extent Coefficient—based on cash-gift and food expenditures—can directly reflect the extent or level of these relationships. Different types of farmers or farming families have different coefficients. The coefficient also shows how social station affects a family's water resource utilization, and how water is distributed among different types of farmers. Despite the current inequities, however, promotion of better agricultural techniques and large-scale cultivation in this area could help distribute water resources more equitably and effectively.
基金Sponsored by Philosophical and Social Science Fund of Universities and Colleges in Jiangsu(2011SJD630019)
文摘Based on the literature review of Chinese heritage resources management,a governance framework was put forward from the perspective of social network in order to deal with the conflict between heritage tourism development and heritage resources protection.First,all stakeholders including administrate departments,related enterprises,local communities and tourists should become subjects of heritage resources governance.Second,governance structure was defined which would describe the roles that all stakeholders played in the governance of heritage resources.Third,several governance mechanism including motivation and restraint mechanism,interaction and coordination mechanism,sharing and integration mechanism should be established.The network governance would balance benefi ts of all the stakeholders,avoid the phenomena such as free ride and external diseconomy and ensure the sustainable development of heritage sites.
文摘With the promulgation and implementation of Social Assistance Interim Measures, China hasbasically established the social assistance system framework with Dibao, Three-nos people support and disasterrelief as the basis, with housing aid, medical aid ,education aid and employment aid as the support and with temporaryassistance and charity help as the supplement. The establishment of various social assistance programsundoubtedly aims to fulfil different demands of urban and rural neddy people, however,the increase of socialassistance programs does not necessarily bring about an increase in the effectiveness of social assistance. Thispaper analyzes the uncoordination of Chinas social assistance program resources and put forward related policysolutions.
文摘Guided by the state policy of reform and opening to the outside world, the Chinese Government has, by dint of hard work over the past three decades, by and large accomplished the task of building up a human resources and social security system. Good enough to serve China's goal of developing a socialist market economy, this system has contributed to the national endeavor to ensure and improve people's livelihood and to safeguard the stability of the reform-and-opening undertakings.
基金funded by the items of the West Action Plan of Chinese Academy of Science (No. KZCX2-XB2-04-04)Key Project of National Natural Science Foundation of China (No. 40671076)
文摘Social resources of indigenous people are valuable wealth, including the social norms, the relational network, belief, attitude as well as the social system which is accumulated from generation to generation. Those social resources are very important for local ecological resource management, which can help diffuseness and communion of skills and traditional conservation techniques for conserving and restoring the ecological sites. Social capital is one indicator of social resources, which is accepted widely. In order to investigate the role of social resources of indigenous people in local ecological resource management, the authors studied the relation between social capital of indigenous people and local ecological resource management, taking Zhangye City as an exam-ple. In this paper, social capital of indigenous people is quantified by constructing social capital index, composed of structural so-cial capital and cognitive social capital; local ecological resource management is quantified by constructing 'Grain for Green Pro-ject' performance index. Based on correlation analysis approach and logistic regression analysis approach, the authors analyzed the relation between social capital and 'Grain for Green Project' performance index, as well as the relations between 'Grain for Green Project' performance index and other factors such as per capita net income, medical treatment and so on. Results showed that the correlation between social capital and 'Grain for Green Project' performance index was positive, the coefficient was 0.761, with P<0.01. An increase of 1 unit in social capital is associated with an increase of 1.550 units in 'Grain for Green Project' per-formance. With factor, such as faction, per capita net income, medical treatment, increasing 1 unit, the 'Grain for Green Project' performance index will increase 3.912, 1.039 and 1.005 units, respectively.
文摘The role of HPH(Forest Logging Concession)in developing rural communities is very significant.SLJ(Sumalindo Lestari Jaya)as HPH company has an important contribution in empowering local communities,especially in opening land transportation in the interior and helping to build agriculture and gardens.The existence of Sumalindo company participates in developing forest resource management with local communities,among others,increasing livelihoods,maintaining and developing biodiversity conservation and maintaining climate change.These efforts are in accordance with the regulations of the KLHK(Ministry of Environment and Forestry),that every HPH holder is required(mandatory)to obtain a certificate of“PHAPL”(Sustainable Production Natural Forest Management)and an“eco label”from the Indonesian Eco Label Institute.Besides,it is recommended that the holders of HPH concessions and HTI(Industrial Timber Plantations)have an FSC(Forest Stewardship Council)certificate from the EU(European Union),and must meet three indicator elements,namely economic,social and ecological in SFM(Sustainable Forest Management).This article examines three critical questions that show the role of Sumalindo Company in economic,ecological and social development and managing forest resources with the community as follows:(1)The role of Sumalindo company contributes to the development of road infrastructure in the interior;(2)The role of Sumalindo in improving livelihoods and economic and social empowerment of local communities;(3)The role of Sumalindo with local communities in managing forest resources,including maintaining and developing biodiversity conservation and maintaining climate change.
文摘Africa faces significant challenges in terms of material and personnel resources for oncology interventions. This is particularly evident in South Africa, where resources are divided into high- and low-resource settings. High-resource settings cater to those with financial means to access private oncology facilities. However, many breast cancer patients receive care in South Africa’s low-resource settings, such as public hospital oncology clinics. Unfortunately, these settings have limited service providers and fail to offer comprehensive interventions, resulting in poor outcomes. However, recent research has highlighted the significance of socially supportive relationships in promoting healing and overall individual well-being, and spirituality has been identified as a source of positive outcomes in cancer patients. This systematic review paper explores the feasibility of implementing support group cancer care and interventions that incorporate social support networks available in community settings, and spiritual practices facilitated by traditional healers, and religious/spiritual leaders. These interventions can be provided within low-resource settings to women diagnosed with breast cancer. Inclusive participation of spouses, children, and extended family in the support group cancer care can facilitate healing for the entire system. Focusing on the strengths and resources within communities and incorporating these complementary services, can enhance the well-being and quality of life for Black African women diagnosed with breast cancer, despite low-resource settings. This approach acknowledges the potential of community-based support networks and encourages collaboration between various stakeholders, including community health educators, nurses, lay counselors, and community volunteers, to address the complex needs of these patients.
基金Project (71003018) supported by the National Natural Science Foundation of ChinaProject (N110402003) supported by the Fundamental Research Funds for the Central Universities,China
文摘Social stock for metal determines secondary or recoverable resources to a certain extent.Top-down analysis method for the studying of metal in social stock was given.Influences of metal consumption under three circumstances,that is keeping constant,varying in a linear trend and in an exponential trend,on one kind of metal’s social stock,recyclable ratio and average age were analyzed.Al-contents and Cu-contents in social stock for China during the period 2006-2009 were calculated.The results reveal that Al-contents and Cu-contents in social stock kept increasing and reached 88.9 million tons and 51.4 millions tons in 2009,respectively,their average recyclable ratios are 1.45% and 0.30%,and the average ages are 4.65 years and 6.89 years,respectively.The recyclable ratios and average ages of Al-contents and Cu-contents in social stock will rise in future along with the decline of the increasing rate of aluminum consumption and copper consumption.
基金Supported by Henan Fundamental and Advanced Technology Program(082300460100)Zhengzhou Key Technology Research&Development Program(10PTGN449)Zhengzhou Normal University Program(2012075)~~
文摘A natural history museum is a museum for collection, researching and presenting natural environment and natural heritages about natural history. In the research, based on the analysis on necessity of university museums’ services to society in resources sharing, the difficulties and dilemmas were summarized in sharing resources of museums and the approaches for resources sharing were explored with the case of Natural History Museum of Zhengzhou Normal University in order to investigate the way for better services of university museum to the public.
基金supported by grant from the Ministry of Science and Technology of China (2015FY111600)
文摘Purpose: To examine, within a social–ecological framework, associations between multifaceted individual and environmental factors and habitual physical activity(HPA) among older Chinese adults.Methods: Through a mix of qualitative and quantitative methods, a survey instrument assessing various factors underlying 3 social–ecological dimensions of intrapersonal, interpersonal, and community and environmental resources was developed. Using a cross-sectional design, older adults(n = 1580, aged 67 ± 7 years) recruited from 10 communities in Shandong province completed the social–ecological survey of HPA. Data were analyzed using Partial Least Squares Path Modeling.Results: Factors related to intrapersonal(medical knowledge, motivation, physical function, sport skills, socioeconomic status, and education),interpersonal(social support, social activity, and social norms), and community and physical environmental resources(safety, capacity, availability of and access to physical activity facilities) were found to be significantly associated with older adults' participation in HPA.Conclusion: The findings provide an initial validation of a social–ecological approach to the study of HPA in China, suggesting that strategies aimed at promoting physical activity in older adults should address multiple levels of factors that may contribute to the likelihood of older Chinese adults being physically active.
基金supported by the National Key Research and Development Program Under Grant 2016YFB 1200102-04Natural Science Foundation of China under Grant U1334202+3 种基金supported in part by the National S&T Major Project 2016ZX03001021-003the Fundamental Research Funds for the Central Universities under Grant 2016RC056in part by the State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,under Contract RCS2017ZT009in part by the China Postdoctoral Science Foundation under Grant 2017M610040
文摘With the rapid deployment of high speed railway(HSR) worldwide,both safety operation and comfort experience can be desired to evolve into a future era of intelligent transportation system.To eliminate boredom and provide entertainment for passengers,an intranet for internal communications among passengers named as onboard social network system(SNS) is needed.In this paper,the latest progress in HSR network architectures and technology building blocks are discussed to enable the implementation of the SNS.Meanwhile,based on the device-to-device(D2 D) communication technology for proximal information interaction,SNS can be efficiently facilitated.A dynamic resource allocation algorithm is proposed to maximize the total utility of the onboard SNS,which is solved with the matching theory method.Simulation results verify the convergence and efficiency of the proposed algorithm.
基金This work was supported by National Natural Science Foundation of China(No.62271368,No.62201421)National Natural Science Foundation of Shaanxi Province(No.2021JQ-206)+1 种基金Guangdong Basic and Applied Basic Research Foundation(No.2020A1515110084)China Postdoctoral Science Foundation(No.2018M640960,No.2019T120879).
文摘To promote the application of edge com-puting in wireless blockchain networks,this paper presents a business ecosystem,where edge comput-ing is introduced to assist blockchain users in imple-menting the mining process.This paper exploits re-source trading and miner competition to enable se-cure and efficient transactions in the presented busi-ness ecosystem.The resource trading problem is for-mulated as a Stackelberg game between miner candi-dates and edge computing servers,where computing,caching,and communication resources are jointly op-timized to maximize the potential profit.Partial of-floading is introduced to further enhance the system performance when compared with the existing work.We analyze the existence and uniqueness of the Nash equilibrium and Stackelberg equilibrium.Based on the optimization result,winners are selected from the set of miner candidates by bidding and constitute the mining network.Simulation results demonstrate that the proposal is able to improve the social welfare of blockchain miners,thus stimulating more blockchain users to join the mining network.
文摘In this paper, an optimisation problem for calculating the best energy bids of a set of hydro power plants in a basin is proposed. The model is applied to a real Spanish basin for the short-term (24-hour) planning of the operation. The algorithm considers the ecological flows and social consumptions required for the actual operation. One of the hydro plants is fluent, without direct-control abilities. The results show that the fluent plant can be adequately controlled by using the storage capacities of the other plants. In the simulations, the costs related to the social consumptions are more significant than those due to the ecological requirements. An estimate of the cost of providing water for social uses is performed in the study.
文摘Major indicator of firm performance is business performance. Aims of firms and managers are to achieve firm performance. Human resource management (HRM) aims to achieve individual performance in order for firm performance. Because individuals (professionals) may have an impact on business performance. European HRM is adopting principles of American HRM. This is convergence. There are two factors that may affect divergence between Europe and USA. Divergence factors are social awareness and economic viewpoint difference. First of all, European firms consider social partners in HRM. Secondly, EU is regulated market economy and USA has liberal market economy. That may create divergence between Europe and USA.
文摘This article aims to identify the challenges in the hospitality industry in Sao Luis, Maranhao, Brazil, with the perspective of developing an organizational culture that enables the practice of corporate social responsibility (CSR). This study method was qualitative, exploratory, and descriptive (Richardson, 1999). The data were collected by interviews with leaders of national and international chain operating hotel companies in Sao Luis (June 2013), using the technique of content analysis. The theoretical framework was developed upon the concept of human resources management (HRM) and CSR. The research findings confirm that CSR is considered as a business strategy and that it contributes to personal and professional fulfillment of employees due to the offer of some benefits, such as remuneration and career plans, pleasurable work environments, awards, and recognition. Beyond that, findings also revealed that the hotels develop CSR activities, particularly focusing on employees, in order to provide guests' satisfaction. The main conclusions are: (1) Leadership is essential to build a culture that leads to a collective involvement in CSR actions; and (2) HRM is considered as a strategic tool for the development of CSR.