Urban landuse change is one of the main driving forces of global environmental change. It is central to the sustainable development debate. The aim of this research is to examine the effects of urban landuse and its i...Urban landuse change is one of the main driving forces of global environmental change. It is central to the sustainable development debate. The aim of this research is to examine the effects of urban landuse and its impact on selected public utility services in Akure with a view to improve strategies to protect these utilities for sustainable development. The research was conducted using remote sensing, Geographical information System and questionnaire to collect the required data for the purpose of fulfilling the objectives of this study. In this study of analyzing the urban landuse change, 2010 and 2018 IKONOS are used in a post classification comparison analysis to map the landuse changes and identify the conversion process in Akure. The landuse change statistics results obtained revealed that residential landuse has changed rapidly for the periods (2010-2018). The results also show increase in commercial landuses between the same periods. The results of the analysis reveal that the built-up area has been growing rapidly for the periods (2010-2018). Findings show that, housing provision (residential), business purpose (commercial) and educational (institution) are the major causes of land use change in the study areas. To reduce the effect of land use expansion in the study areas, policy measures were recommended which include regulating the growth and spread of development, regional development programs. In our opinion, the information provided by these technologies could help city planners and policy makers to attain and sustain future urban development.展开更多
The ultimate goal of social marketing is to change the behavior,attitude,concept,and so on of target audiences.For the public welfare organization,the basis of its service project design is the organization's miss...The ultimate goal of social marketing is to change the behavior,attitude,concept,and so on of target audiences.For the public welfare organization,the basis of its service project design is the organization's mission and location.The key to achieve the organizational mission is to be able to lock the service objects and respond to the needs of service objects effectively.This research is based on the theoretical framework of social marketing and based on the questionnaire survey and analysis of the advocacy effectiveness and problems of service objects of the 327 public service organizations in China.Using the Delphi method and the entropy method,the 6P model of social marketing for service objects advocacy in the field of domestic public welfare practice is concise,and a new operational mechanism for service objects advocacy of public welfare organizations is proposed to implement the mission and value of public welfare organizations and contribute to the change of service objects.展开更多
The Rwandan State-run Energy Water and Sanitation Authority Company (EWSA) is rapidly increasing the number of population having access to electrical power energy. 30% of electrical energy is used in lighting. The inc...The Rwandan State-run Energy Water and Sanitation Authority Company (EWSA) is rapidly increasing the number of population having access to electrical power energy. 30% of electrical energy is used in lighting. The incandescent bulbs, compact fluorescent lamp bulbs as well as fluorescent tubes are mostly used to convert electrical energy into light. The said light sources have many disadvantages such as excessive power consumption leading to giant bills of electricity, short life span leading to continuous replacement of lamps, and emission of CO2. Application of light-emitting diode (LED) lamps in lighting in long term suppresses the aforementioned problems resulting into saving of money that will be used for running new small investments.展开更多
This paper applies the residence utility principles to the study of public housing rent and regards that the average utility of a household determines the public housing rent level. It also suggests that the governmen...This paper applies the residence utility principles to the study of public housing rent and regards that the average utility of a household determines the public housing rent level. It also suggests that the government use multi-level public housing rent to substitute for single-level in order to make the policies for public housing rent more just, equitable and effective.展开更多
<strong>Purpose: </strong>Nowadays, the worldwide economic recession has created numerous challenges in the Public Sector of Greece, which in turn affect the sustainability of public enterprises. Overall, ...<strong>Purpose: </strong>Nowadays, the worldwide economic recession has created numerous challenges in the Public Sector of Greece, which in turn affect the sustainability of public enterprises. Overall, there is a high pressure to increase productivity and reduce operating costs. The need to adapt to the new environment is pushing public organizations to implement Lean Management strategies in accordance with Private Sector standards. However, the limited budget, public deficits and debts, bureaucratic culture, political dependence and lack of transparency present several issues. These pose a serious threat to successful implementation of Lean practices in the long-run. Lack of relevant research and dichotomous role of public service organizations make this study very interesting. This research paper is aiming at exploring and highlighting the impact of the most important Critical Success Factors (CSFs) for the effective integration of Lean Management principles in Public Utility organizations in Greece by combining bibliographic research and empirical—with the quantitative method-research through case studies. <strong>Research Methodology: </strong>The research method combines bibliographic research and empirical—with the quantitative method. Quantitative method was employed on a sufficient sample of public employees from two of the largest public companies of Greece: Public Power Corporation (PPC S.A.) and Athens Water Supply and Sewerage Company (EYDAP S.A.) in order to investigate the impact of the most important CSFs on successful Lean Transformation of them. <strong>Findings:</strong> Quantitative findings from this research illustrated that the most important CSFs that have a positive impact on successful Lean Transformation on Greek public organizations/utilities are: Effective Communication, flexible Organizational Infrastructure, Customer Focus, Linking Lean to Suppliers, Business Plan and Vision, competent Change Management, Top Management Support and Commitment, Training and Education, as well as Selection of Staff. On the contrary, the existence of a bureaucratic Organizational Culture has a negative effect on successful integration of Lean Management. <strong>Limitations: </strong>Important limitations of this study are the utilization of a convenience sample and the strict focus on Greek public organizations operating in a competitive environment.展开更多
Background:Non-timber forest products(NTFPs)are an important part of forest biodiversity,and the subsistence and trade of local people,especially in less developed countries.Because of the high ecological and economic...Background:Non-timber forest products(NTFPs)are an important part of forest biodiversity,and the subsistence and trade of local people,especially in less developed countries.Because of the high ecological and economic value,NTFPs have faced the problem of over-exploitation,and the key to solve this problem is to determine the feasible way of sustainable utilization of NTFPs.Harvest intensity is one of the most important and easily controlled utilization factors,which can greatly influence the plant individual survival,growth and reproductive performances,and even the population structure and dynamics.Therefore,we chose two common and important NTFPs species with different marketable parts(i.e.,Acanthopanax senticosus with tender leaves and Aralia elata with tender buds)as our study objects.Aiming to determine the optimum harvest intensity for sustainably utilizing both NTFPs species,five levels of harvest intensity treatments(i.e.,control,light,medium,high and severe)were designed to assess the effects of harvest intensity on their marketable organ yield,plant growth and reproductive performances.Results:The biomass growth rates of marketable organ and plant growth of A.senticosus under light harvest intensity treatment were significantly higher than those under other harvest intensities.The plant height growth and 1000-seed weight of A.elata under severe harvest intensity treatment were significantly lower than those under control treatment.Conclusions:The light harvest intensity with 25% leaf removal and the high harvest intensity with all terminal buds harvested are the optimum harvest intensity to maintain the sustainable utilization of A.senticosus and A.elata,respectively.These findings could provide managers with basic but practical guidance for making decisions about the sustainable harvest management plan for the cultivated NTFPs species,and further provide a theoretical basis for managers to establish the harvest regulations for wild NTFPs species.Consequently,the local residents or communities can improve their income while ensure the sustainable development of wild NTFPs.展开更多
In traditional networks , the authentication is performed by certificate authoritys(CA),which can't be built in distributed mobile Ad Hoc Networks however. In this pa per, we propose a fully self-organized public k...In traditional networks , the authentication is performed by certificate authoritys(CA),which can't be built in distributed mobile Ad Hoc Networks however. In this pa per, we propose a fully self-organized public key management based on bidirectional trust model without any centralized authority that allows users to generate their public-private key pairs, to issue certificates, and the trust relation spreads rationally according to the truly human relations. In contrast with the traditional self-organized public-key management, the average certificates paths get more short, the authentication passing rate gets more high and the most important is that the bidirectional trust based model satisfys the trust re quirement of hosts better.展开更多
A new interlayer is successfully used to be a universal carrier switch, developing high-performance hybrid white organic light-emitting diodes (WOLEDs). By dint of this interlayer, the two-color hybrid WOLED shows a...A new interlayer is successfully used to be a universal carrier switch, developing high-performance hybrid white organic light-emitting diodes (WOLEDs). By dint of this interlayer, the two-color hybrid WOLED shows a maximum total current efficiency (CE) and power efficiency (PE) of 48.1 cd/A and 37.6 Im/W, respectively, while the three-color hybrid WOLED shows a maximum total CE and PE of 33.8 cd/A and 25.7Im/W, respectively. The color rendering index of the three-color hybrid WOLEDs are ≥ 75, which is already a sufficient level for many commercial lighting applications. In addition, both the two-color and three-color hybrid WOLEDs show low efficiency roll-off and stable color. Furthermore, devices with the new interlayer show much higher performance than devices with the most commonly used 4,4-N,N-dicarbazolebiphenyl and N,N'-di(naphthalene-l-yl)-N,N'- diphenyl-benzidine interlayers.展开更多
From functions,ornament and art,on the basis of the behavioral theory,the utility of urban public facilities was surveyed and studied with Longhua District of Haikou City as an example.It summed up the basis for desig...From functions,ornament and art,on the basis of the behavioral theory,the utility of urban public facilities was surveyed and studied with Longhua District of Haikou City as an example.It summed up the basis for designing urban public facilities behind behavior habits of residents,in the hope of making future urban construction and management more humanized.Accordingly,it is expected to set up appropriate concept of public facilities,and play especially important role in creating favorable urban living environment.展开更多
Objective To study the problems of Chinese social organizations in participating in the prevention and control of the COVID-19 pandemic so that we can standardize the participation mechanism,improve the collaborative ...Objective To study the problems of Chinese social organizations in participating in the prevention and control of the COVID-19 pandemic so that we can standardize the participation mechanism,improve the collaborative management mechanism,and promote the development of social organizations.Methods Through the analysis of CNKI,news reports,industry conferences and other data,combined with the current situation,the participation of social organizations in public health emergencies were investigated.Results and Conclusion The coordination between government and social organizations is not good.Social organizations in the field of public health are unable to stand out in a timely manner.The public do not have self-management ability.Some of the media spread rumors.Besides,most social organizations are highly dependent on the government and they are ack supervision.Social organizations should be incorporated into the emergency management system and national hub-based social organizations must be established.In addition,supervision should be strengthened to increase the credibility of social organizations.The responsibilities of community and emergency management at the grassroots level should be enhanced.The public opinion response and disposal system should be improved.Lastly,the responsibility of social organizations in the field of public health must be fulfilled.展开更多
From analysis on internal and external motive forces of development in North Bay Economic Zone, it indicates that public policies, as basic methods of government intervening against social and economic activities, are...From analysis on internal and external motive forces of development in North Bay Economic Zone, it indicates that public policies, as basic methods of government intervening against social and economic activities, are fundamental public goods produced by government. Effective supply of public policies brings rural economic growth, environmental protection and sustainable development, which greatly stimulates rural consumption, expands domestic demand and spurs economic growth, showing significant "multiplier effect". In this situation, this paper studies conditions for rural economic development and social transformation of the North Bay Economic Zone. Results show that social and economic development of rural areas of the North Bay Economic Zone needs scientific, reasonable and effective "public policies".展开更多
report the circulation of a novel MERS-like coronavirus in Malayan pangolins, named Manis javanica HKU4-relatedcoronavirus (MjHKU4r-CoV). Among 86 animals, four tested positive by pan-CoV PCR, and seven tested seropos...report the circulation of a novel MERS-like coronavirus in Malayan pangolins, named Manis javanica HKU4-relatedcoronavirus (MjHKU4r-CoV). Among 86 animals, four tested positive by pan-CoV PCR, and seven tested seropositive (11 and12.8%). Four nearly identical (99.9%) genome sequences were obtained, and one virus was isolated (MjHKU4r-CoV-1). Thisvirus utilizes human dipeptidyl peptidase-4 (hDPP4) as a receptor and host proteases for cell infection, which is enhanced by afurin cleavage site that is absent in all known bat HKU4r-CoVs. The MjHKU4r-CoV-1 spike shows higher binding affinity forhDPP4, and MjHKU4r-CoV-1 has a wider host range than bat HKU4-CoV. MjHKU4r-CoV-1 is infectious and pathogenic inhuman airways and intestinal organs and in hDPP4-transgenic mice. Our study highlights the importance of pangolins as reservoirhosts of coronaviruses poised for human disease emergence.展开更多
文摘Urban landuse change is one of the main driving forces of global environmental change. It is central to the sustainable development debate. The aim of this research is to examine the effects of urban landuse and its impact on selected public utility services in Akure with a view to improve strategies to protect these utilities for sustainable development. The research was conducted using remote sensing, Geographical information System and questionnaire to collect the required data for the purpose of fulfilling the objectives of this study. In this study of analyzing the urban landuse change, 2010 and 2018 IKONOS are used in a post classification comparison analysis to map the landuse changes and identify the conversion process in Akure. The landuse change statistics results obtained revealed that residential landuse has changed rapidly for the periods (2010-2018). The results also show increase in commercial landuses between the same periods. The results of the analysis reveal that the built-up area has been growing rapidly for the periods (2010-2018). Findings show that, housing provision (residential), business purpose (commercial) and educational (institution) are the major causes of land use change in the study areas. To reduce the effect of land use expansion in the study areas, policy measures were recommended which include regulating the growth and spread of development, regional development programs. In our opinion, the information provided by these technologies could help city planners and policy makers to attain and sustain future urban development.
文摘The ultimate goal of social marketing is to change the behavior,attitude,concept,and so on of target audiences.For the public welfare organization,the basis of its service project design is the organization's mission and location.The key to achieve the organizational mission is to be able to lock the service objects and respond to the needs of service objects effectively.This research is based on the theoretical framework of social marketing and based on the questionnaire survey and analysis of the advocacy effectiveness and problems of service objects of the 327 public service organizations in China.Using the Delphi method and the entropy method,the 6P model of social marketing for service objects advocacy in the field of domestic public welfare practice is concise,and a new operational mechanism for service objects advocacy of public welfare organizations is proposed to implement the mission and value of public welfare organizations and contribute to the change of service objects.
文摘The Rwandan State-run Energy Water and Sanitation Authority Company (EWSA) is rapidly increasing the number of population having access to electrical power energy. 30% of electrical energy is used in lighting. The incandescent bulbs, compact fluorescent lamp bulbs as well as fluorescent tubes are mostly used to convert electrical energy into light. The said light sources have many disadvantages such as excessive power consumption leading to giant bills of electricity, short life span leading to continuous replacement of lamps, and emission of CO2. Application of light-emitting diode (LED) lamps in lighting in long term suppresses the aforementioned problems resulting into saving of money that will be used for running new small investments.
文摘This paper applies the residence utility principles to the study of public housing rent and regards that the average utility of a household determines the public housing rent level. It also suggests that the government use multi-level public housing rent to substitute for single-level in order to make the policies for public housing rent more just, equitable and effective.
文摘<strong>Purpose: </strong>Nowadays, the worldwide economic recession has created numerous challenges in the Public Sector of Greece, which in turn affect the sustainability of public enterprises. Overall, there is a high pressure to increase productivity and reduce operating costs. The need to adapt to the new environment is pushing public organizations to implement Lean Management strategies in accordance with Private Sector standards. However, the limited budget, public deficits and debts, bureaucratic culture, political dependence and lack of transparency present several issues. These pose a serious threat to successful implementation of Lean practices in the long-run. Lack of relevant research and dichotomous role of public service organizations make this study very interesting. This research paper is aiming at exploring and highlighting the impact of the most important Critical Success Factors (CSFs) for the effective integration of Lean Management principles in Public Utility organizations in Greece by combining bibliographic research and empirical—with the quantitative method-research through case studies. <strong>Research Methodology: </strong>The research method combines bibliographic research and empirical—with the quantitative method. Quantitative method was employed on a sufficient sample of public employees from two of the largest public companies of Greece: Public Power Corporation (PPC S.A.) and Athens Water Supply and Sewerage Company (EYDAP S.A.) in order to investigate the impact of the most important CSFs on successful Lean Transformation of them. <strong>Findings:</strong> Quantitative findings from this research illustrated that the most important CSFs that have a positive impact on successful Lean Transformation on Greek public organizations/utilities are: Effective Communication, flexible Organizational Infrastructure, Customer Focus, Linking Lean to Suppliers, Business Plan and Vision, competent Change Management, Top Management Support and Commitment, Training and Education, as well as Selection of Staff. On the contrary, the existence of a bureaucratic Organizational Culture has a negative effect on successful integration of Lean Management. <strong>Limitations: </strong>Important limitations of this study are the utilization of a convenience sample and the strict focus on Greek public organizations operating in a competitive environment.
基金supported by grants from the National Key R&D Program of China(2016YFC0500302)the National Natural Science Foundation of China(U1808201)+1 种基金Strategic Leading Science&Technology Programme,CAS(XDA23070100)the Liaoning Revitalization Talents Program(XLYC1807102).
文摘Background:Non-timber forest products(NTFPs)are an important part of forest biodiversity,and the subsistence and trade of local people,especially in less developed countries.Because of the high ecological and economic value,NTFPs have faced the problem of over-exploitation,and the key to solve this problem is to determine the feasible way of sustainable utilization of NTFPs.Harvest intensity is one of the most important and easily controlled utilization factors,which can greatly influence the plant individual survival,growth and reproductive performances,and even the population structure and dynamics.Therefore,we chose two common and important NTFPs species with different marketable parts(i.e.,Acanthopanax senticosus with tender leaves and Aralia elata with tender buds)as our study objects.Aiming to determine the optimum harvest intensity for sustainably utilizing both NTFPs species,five levels of harvest intensity treatments(i.e.,control,light,medium,high and severe)were designed to assess the effects of harvest intensity on their marketable organ yield,plant growth and reproductive performances.Results:The biomass growth rates of marketable organ and plant growth of A.senticosus under light harvest intensity treatment were significantly higher than those under other harvest intensities.The plant height growth and 1000-seed weight of A.elata under severe harvest intensity treatment were significantly lower than those under control treatment.Conclusions:The light harvest intensity with 25% leaf removal and the high harvest intensity with all terminal buds harvested are the optimum harvest intensity to maintain the sustainable utilization of A.senticosus and A.elata,respectively.These findings could provide managers with basic but practical guidance for making decisions about the sustainable harvest management plan for the cultivated NTFPs species,and further provide a theoretical basis for managers to establish the harvest regulations for wild NTFPs species.Consequently,the local residents or communities can improve their income while ensure the sustainable development of wild NTFPs.
基金Supported by the National Natural Science Funda-tion of China (60403027)
文摘In traditional networks , the authentication is performed by certificate authoritys(CA),which can't be built in distributed mobile Ad Hoc Networks however. In this pa per, we propose a fully self-organized public key management based on bidirectional trust model without any centralized authority that allows users to generate their public-private key pairs, to issue certificates, and the trust relation spreads rationally according to the truly human relations. In contrast with the traditional self-organized public-key management, the average certificates paths get more short, the authentication passing rate gets more high and the most important is that the bidirectional trust based model satisfys the trust re quirement of hosts better.
基金Supported by the National Natural Science Foundation of China under Grant No 61076066the Innovation Project of Science and Technology Plan Projects of Shaanxi Province under Grant No 2011KTCQ01-09
文摘A new interlayer is successfully used to be a universal carrier switch, developing high-performance hybrid white organic light-emitting diodes (WOLEDs). By dint of this interlayer, the two-color hybrid WOLED shows a maximum total current efficiency (CE) and power efficiency (PE) of 48.1 cd/A and 37.6 Im/W, respectively, while the three-color hybrid WOLED shows a maximum total CE and PE of 33.8 cd/A and 25.7Im/W, respectively. The color rendering index of the three-color hybrid WOLEDs are ≥ 75, which is already a sufficient level for many commercial lighting applications. In addition, both the two-color and three-color hybrid WOLEDs show low efficiency roll-off and stable color. Furthermore, devices with the new interlayer show much higher performance than devices with the most commonly used 4,4-N,N-dicarbazolebiphenyl and N,N'-di(naphthalene-l-yl)-N,N'- diphenyl-benzidine interlayers.
文摘From functions,ornament and art,on the basis of the behavioral theory,the utility of urban public facilities was surveyed and studied with Longhua District of Haikou City as an example.It summed up the basis for designing urban public facilities behind behavior habits of residents,in the hope of making future urban construction and management more humanized.Accordingly,it is expected to set up appropriate concept of public facilities,and play especially important role in creating favorable urban living environment.
基金General projects of social science planning fund of Liaoning Province(L19BGL034)The project of Shenyang philosophy and social science planning fund(SZ202001L)Key projects of Shenyang Social Science Fund(SYSK2020-04-01).
文摘Objective To study the problems of Chinese social organizations in participating in the prevention and control of the COVID-19 pandemic so that we can standardize the participation mechanism,improve the collaborative management mechanism,and promote the development of social organizations.Methods Through the analysis of CNKI,news reports,industry conferences and other data,combined with the current situation,the participation of social organizations in public health emergencies were investigated.Results and Conclusion The coordination between government and social organizations is not good.Social organizations in the field of public health are unable to stand out in a timely manner.The public do not have self-management ability.Some of the media spread rumors.Besides,most social organizations are highly dependent on the government and they are ack supervision.Social organizations should be incorporated into the emergency management system and national hub-based social organizations must be established.In addition,supervision should be strengthened to increase the credibility of social organizations.The responsibilities of community and emergency management at the grassroots level should be enhanced.The public opinion response and disposal system should be improved.Lastly,the responsibility of social organizations in the field of public health must be fulfilled.
基金Supported by Project of National Natural Science Foundation (Grant No.71163003)New Century Higher Education Reform Project of Guangxi Province (Grant No.2010JGA006)
文摘From analysis on internal and external motive forces of development in North Bay Economic Zone, it indicates that public policies, as basic methods of government intervening against social and economic activities, are fundamental public goods produced by government. Effective supply of public policies brings rural economic growth, environmental protection and sustainable development, which greatly stimulates rural consumption, expands domestic demand and spurs economic growth, showing significant "multiplier effect". In this situation, this paper studies conditions for rural economic development and social transformation of the North Bay Economic Zone. Results show that social and economic development of rural areas of the North Bay Economic Zone needs scientific, reasonable and effective "public policies".
文摘report the circulation of a novel MERS-like coronavirus in Malayan pangolins, named Manis javanica HKU4-relatedcoronavirus (MjHKU4r-CoV). Among 86 animals, four tested positive by pan-CoV PCR, and seven tested seropositive (11 and12.8%). Four nearly identical (99.9%) genome sequences were obtained, and one virus was isolated (MjHKU4r-CoV-1). Thisvirus utilizes human dipeptidyl peptidase-4 (hDPP4) as a receptor and host proteases for cell infection, which is enhanced by afurin cleavage site that is absent in all known bat HKU4r-CoVs. The MjHKU4r-CoV-1 spike shows higher binding affinity forhDPP4, and MjHKU4r-CoV-1 has a wider host range than bat HKU4-CoV. MjHKU4r-CoV-1 is infectious and pathogenic inhuman airways and intestinal organs and in hDPP4-transgenic mice. Our study highlights the importance of pangolins as reservoirhosts of coronaviruses poised for human disease emergence.