Background:Pyogenic granuloma(PG)is a benign vascular skin lesion that occurs in children.Although,sclerotherapy is a common treatment for patients with PG,all the previous studies have been case reports or series.At ...Background:Pyogenic granuloma(PG)is a benign vascular skin lesion that occurs in children.Although,sclerotherapy is a common treatment for patients with PG,all the previous studies have been case reports or series.At present,no reports have compared the efficacy of the two different sclerosing agents,polidocanol and bleomycin,in the treatment of PG.Therefore,we aimed to compare the cure rates and adverse reactions associated with these two agents in sclerotherapy for PG in children.Methods:This retrospective analysis included children<18 years of age with PG undergoing cutaneous treatment at our hospital between January 2016 and January 2022.Two sclerosing agents,polidocanol and bleomycin,were topically injected.The efficacy and incidence of adverse reactions were compared between the two groups.Results:A total of 117 children with PG were divided into the polidocanol(n=52)and bleomycin(n=65)groups.Lesions disappeared after one injection in 38 children,two in 11 children,and three in 3 children in the polidocanol group.A similar phenomenon was observed after one injection in 53 children,two injections in 8 children,and three injections in children in the bleomycin group.The single-injection cure rate was not significantly different between the two groups(P>0.05).The rate of adverse reactions was significantly different between the two groups(P<0.05).No severe complications occurred,and no recurrences were detected during the 6-12 months of postoperative follow-up period.Conclusion:This study showed that both polidocanol and bleomycin are safe and effective sclerosing agents for treatment of PG in children.The incidence of adverse reactions to polidocanol was lower than that to bleomycin.We recommend sclerotherapy with polidocanol as a first-line treatment for PG,as it is suitable for application in hospitals at various levels.展开更多
In community planning,due to the lack of evidence regarding the selection of media tools,this study examines how a common but differentiated ideal speech situation can be created as well as how more appropriate media ...In community planning,due to the lack of evidence regarding the selection of media tools,this study examines how a common but differentiated ideal speech situation can be created as well as how more appropriate media tools can be defined and selected in the community planning process.First,this study describes the concept and theoretical basis of media used in community planning from the perspectives of the multiple effects of media evolution on communicative planning.Second,the classification criteria and typical characteristics of media tools used to support community planning are clarified from three dimensions:acceptability,cost effectiveness,and applicability.Third,strategies for applying media tools in the four phases of communicative planning-namely,state analysis,problem identification,contradictory solution and optimization-are described.Finally,trends in the development of media tools for community planning are explored in terms of multistakeholder engagement,supporting scientific decision-making and multiple-type media integration.The results provide a reference for developing more inclusive,effective,and appropriate media tools for enhancing decision-making capacity and modernizing governance in community planning and policy-making processes.展开更多
This paper proposes a comprehensive framework for estimating the regional rooftop photovoltaic(PV)potential.The required rooftop information is extracted from Gao Fen-7 satellite images.In particular,the rooftop area ...This paper proposes a comprehensive framework for estimating the regional rooftop photovoltaic(PV)potential.The required rooftop information is extracted from Gao Fen-7 satellite images.In particular,the rooftop area is obtained using a semantic segmentation network.The azimuth and inclination angles are calculated based on the digital surface model.In addition,to improve the accuracy of the economic evaluation,buildings are divided into commercial and industrial buildings and residential buildings.Based on the difference in the roof inclination,the rooftops can be divided into flat roofs,on which the PV panels are installed with the optimal inclination angle,and sloped rooftops,on which the PV panels are installed in a lay-flat manner.The solar irradiation on the plane-of-array is calculated using the isotropic sky translocation model.Then,the available installed capacity and generation potential of the rooftop PV is obtained.Finally,the net present value,dynamic payback period,and internal rate of return are used to evaluate the economic efficiency of the rooftop PV project.The proposed framework is applied in the Da Xing district of Beijing,China,with a total area of 546.84 km^(2).The results show that the rooftop area and available installed capacity of PV are 25.63 km^(2)and 1487.45 MWp,respectively.The annual rooftop PV generation potential is 2832.23 GWh,with significant economic returns.展开更多
文摘Background:Pyogenic granuloma(PG)is a benign vascular skin lesion that occurs in children.Although,sclerotherapy is a common treatment for patients with PG,all the previous studies have been case reports or series.At present,no reports have compared the efficacy of the two different sclerosing agents,polidocanol and bleomycin,in the treatment of PG.Therefore,we aimed to compare the cure rates and adverse reactions associated with these two agents in sclerotherapy for PG in children.Methods:This retrospective analysis included children<18 years of age with PG undergoing cutaneous treatment at our hospital between January 2016 and January 2022.Two sclerosing agents,polidocanol and bleomycin,were topically injected.The efficacy and incidence of adverse reactions were compared between the two groups.Results:A total of 117 children with PG were divided into the polidocanol(n=52)and bleomycin(n=65)groups.Lesions disappeared after one injection in 38 children,two in 11 children,and three in 3 children in the polidocanol group.A similar phenomenon was observed after one injection in 53 children,two injections in 8 children,and three injections in children in the bleomycin group.The single-injection cure rate was not significantly different between the two groups(P>0.05).The rate of adverse reactions was significantly different between the two groups(P<0.05).No severe complications occurred,and no recurrences were detected during the 6-12 months of postoperative follow-up period.Conclusion:This study showed that both polidocanol and bleomycin are safe and effective sclerosing agents for treatment of PG in children.The incidence of adverse reactions to polidocanol was lower than that to bleomycin.We recommend sclerotherapy with polidocanol as a first-line treatment for PG,as it is suitable for application in hospitals at various levels.
基金supported by the National Key Research and Development Program of China under the theme“Key technologies for urban sustainable development evaluation and decision-making support”[Grant No.2022YFC3802900].
文摘In community planning,due to the lack of evidence regarding the selection of media tools,this study examines how a common but differentiated ideal speech situation can be created as well as how more appropriate media tools can be defined and selected in the community planning process.First,this study describes the concept and theoretical basis of media used in community planning from the perspectives of the multiple effects of media evolution on communicative planning.Second,the classification criteria and typical characteristics of media tools used to support community planning are clarified from three dimensions:acceptability,cost effectiveness,and applicability.Third,strategies for applying media tools in the four phases of communicative planning-namely,state analysis,problem identification,contradictory solution and optimization-are described.Finally,trends in the development of media tools for community planning are explored in terms of multistakeholder engagement,supporting scientific decision-making and multiple-type media integration.The results provide a reference for developing more inclusive,effective,and appropriate media tools for enhancing decision-making capacity and modernizing governance in community planning and policy-making processes.
基金supported by the Global Energy Interconnection Group Co.,Ltd.,Science and Technology Project(SGGEIG00JYJS2100032)。
文摘This paper proposes a comprehensive framework for estimating the regional rooftop photovoltaic(PV)potential.The required rooftop information is extracted from Gao Fen-7 satellite images.In particular,the rooftop area is obtained using a semantic segmentation network.The azimuth and inclination angles are calculated based on the digital surface model.In addition,to improve the accuracy of the economic evaluation,buildings are divided into commercial and industrial buildings and residential buildings.Based on the difference in the roof inclination,the rooftops can be divided into flat roofs,on which the PV panels are installed with the optimal inclination angle,and sloped rooftops,on which the PV panels are installed in a lay-flat manner.The solar irradiation on the plane-of-array is calculated using the isotropic sky translocation model.Then,the available installed capacity and generation potential of the rooftop PV is obtained.Finally,the net present value,dynamic payback period,and internal rate of return are used to evaluate the economic efficiency of the rooftop PV project.The proposed framework is applied in the Da Xing district of Beijing,China,with a total area of 546.84 km^(2).The results show that the rooftop area and available installed capacity of PV are 25.63 km^(2)and 1487.45 MWp,respectively.The annual rooftop PV generation potential is 2832.23 GWh,with significant economic returns.
