This paper is concerned with partial Bochner integrals with emphasis on a geometrical study of partial Bochner integrability. Convex sets involving the range of L-1-bounded functions are constructed. These constructio...This paper is concerned with partial Bochner integrals with emphasis on a geometrical study of partial Bochner integrability. Convex sets involving the range of L-1-bounded functions are constructed. These constructions provide a complete characterization of partial Bochner integrable functions.展开更多
This paper presents a case study of the Sunflower Project,an Non-Governmental Organization(NGO)-led intervention,aiming at facilitating the urban integration of migrant children in Shanghai through extracurricular pro...This paper presents a case study of the Sunflower Project,an Non-Governmental Organization(NGO)-led intervention,aiming at facilitating the urban integration of migrant children in Shanghai through extracurricular programs.The study investigates how NGO attempts to use extracurricular courses to address migrant children's structural exclusion and capital deficits,while examining the limitations that constrain their effectiveness.The research employed a qualitative methodology combining participant observation and semi-structured interviews to understand both the implementation process and participant experiences.The data is encoded and analyzed using grounded theory to reveal the mechanisms of capital accumulation and transformation.Key findings reveal that while the project successfully creates a significant impact on migrant children,bonding social capital,and facilitates the acquisition of instrumental cultural capital,significant limitations persist.Children and their parent's utilitarian orientation,shaped by socioeconomic pressures,leads to children placing practical skills above cultural or identity-related resources,particularly showing resistance to the English language and local cultural activities.Also,the organizational and financial constraints of the project have limited the coverage and sustainability of the project.Furthermore,the developed social networks remain confined within project boundaries,failing to transform into bridging social capital that connects children to wider urban opportunities due to institutional and structural barriers.These have led to a state of partial integration,where children have gained resources and confidence but still continue to experience identity conflicts and a limited sense of belonging to the city.The study concludes that NGO-led interventions primarily create isolated capital pools that face conversion challenges in broader urban contexts,suggesting that effective integration intervention measures must go beyond simple resource provision to address the cognitive-level issues.展开更多
Background:The impact of the human immunodeficiency virus(HIV)on tuberculosis(TB),and the implications for TB and HIV control,is a public health challenge in Ghana-almost a quarter(23%)of all TB cases were HIV positiv...Background:The impact of the human immunodeficiency virus(HIV)on tuberculosis(TB),and the implications for TB and HIV control,is a public health challenge in Ghana-almost a quarter(23%)of all TB cases were HIV positive in 2010.The integration of TB/HIV services has therefore emerged as an essential component of the national response to TB and HIV.The aim is to reduce fragmentation,improve access,enhance efficiency and improve quality of care.Ghana’s TB/HIV policy comprises three linked sets of activities:effective implementation of the Stop TB Strategy for TB control,improved HIV prevention and care,and the implementation of additional TB/HIV activities.Different models of service delivery with increasing integration of TB/HIV activities are expected to provide greater access to more comprehensive care.The objective of this paper is to assess the impact of TB/HIV integration on TB treatment outcomes and to explore the usefulness of TB treatment outcomes as TB/HIV indicators.Methods:A before-and-after study to observe the introduction of TB/HIV activities into TB programmes in three hospitals with different levels of integration was conducted.Anonymised patient data was collated from TB registers from each facility,and analysed to determine if TB treatment outcomes changed significantly after integration.Results:TB treatment success was 50%(95%CI 49-52)prior to,and 69%(95%CI 65-73)after,integration(Χ243.96,p<0.00).Treatment success increased from 43%to 53%at the one-stop shop(OSS),from 69%to 78%at the partially integrated site(PIS)and substantially from 46%to 78%at the referral site(RS)(Χ264.54;p<0.01).Defaults and cases transferred out reduced from 14.3%and 15.3%prior to integration,to 1.4%and 9.0%after integration,respectively,accounting for a significant increase in treatment success.Death rates remained high at 18%in all cases studied and 25%in HIV-associated cases after integration.Conclusion:TB/HIV integration may improve TB treatment success,but its exact impact is difficult to ascertain due to non-specificity and design limitations.TB mortality may be more useful as an indicator for monitoring TB/HIV activities in Ghana.展开更多
We introduce a dual-polarized(DP)Fabry–Perot cavity(FPC)antenna operating at the millimeter-wave(mmWave)frequency band with high-gain and wideband characteristics.A DP feeding source and a partially reflective surfac...We introduce a dual-polarized(DP)Fabry–Perot cavity(FPC)antenna operating at the millimeter-wave(mmWave)frequency band with high-gain and wideband characteristics.A DP feeding source and a partially reflective surface(PRS)integrated with a Fresnel zone lens are suggested to realize dual-polarization wave radiation over a wide impedance bandwidth.The feeding source provides vertical and horizontal polarizations while keeping high isolation between the two polarizations.PRS is used to realize Fabry cavity to produce a directive beam radiation.The integrated Fresnel zone rings are introduced for phase correction,leading to a significant gain enhancement for the antenna.For verification,a 60-GHz FPC antenna prototype with DP radiation is designed and fabricated with measurement results.It consists of a feeding source,a PRS integrated with a Fresnel zone lens,a quasi-curved reflector,and four three-dimensional printed supporters.The results illustrate that the peak gains of vertical and horizontal polarizations are 18.4 and 17.6 dBi,respectively.The impedance matching bandwidth for the two polarizations is 14%.The performance ensures that the proposed DP FPC antenna is a promising candidate for the fifth-generation wireless communication systems in the mmWave band.展开更多
文摘This paper is concerned with partial Bochner integrals with emphasis on a geometrical study of partial Bochner integrability. Convex sets involving the range of L-1-bounded functions are constructed. These constructions provide a complete characterization of partial Bochner integrable functions.
文摘This paper presents a case study of the Sunflower Project,an Non-Governmental Organization(NGO)-led intervention,aiming at facilitating the urban integration of migrant children in Shanghai through extracurricular programs.The study investigates how NGO attempts to use extracurricular courses to address migrant children's structural exclusion and capital deficits,while examining the limitations that constrain their effectiveness.The research employed a qualitative methodology combining participant observation and semi-structured interviews to understand both the implementation process and participant experiences.The data is encoded and analyzed using grounded theory to reveal the mechanisms of capital accumulation and transformation.Key findings reveal that while the project successfully creates a significant impact on migrant children,bonding social capital,and facilitates the acquisition of instrumental cultural capital,significant limitations persist.Children and their parent's utilitarian orientation,shaped by socioeconomic pressures,leads to children placing practical skills above cultural or identity-related resources,particularly showing resistance to the English language and local cultural activities.Also,the organizational and financial constraints of the project have limited the coverage and sustainability of the project.Furthermore,the developed social networks remain confined within project boundaries,failing to transform into bridging social capital that connects children to wider urban opportunities due to institutional and structural barriers.These have led to a state of partial integration,where children have gained resources and confidence but still continue to experience identity conflicts and a limited sense of belonging to the city.The study concludes that NGO-led interventions primarily create isolated capital pools that face conversion challenges in broader urban contexts,suggesting that effective integration intervention measures must go beyond simple resource provision to address the cognitive-level issues.
文摘Background:The impact of the human immunodeficiency virus(HIV)on tuberculosis(TB),and the implications for TB and HIV control,is a public health challenge in Ghana-almost a quarter(23%)of all TB cases were HIV positive in 2010.The integration of TB/HIV services has therefore emerged as an essential component of the national response to TB and HIV.The aim is to reduce fragmentation,improve access,enhance efficiency and improve quality of care.Ghana’s TB/HIV policy comprises three linked sets of activities:effective implementation of the Stop TB Strategy for TB control,improved HIV prevention and care,and the implementation of additional TB/HIV activities.Different models of service delivery with increasing integration of TB/HIV activities are expected to provide greater access to more comprehensive care.The objective of this paper is to assess the impact of TB/HIV integration on TB treatment outcomes and to explore the usefulness of TB treatment outcomes as TB/HIV indicators.Methods:A before-and-after study to observe the introduction of TB/HIV activities into TB programmes in three hospitals with different levels of integration was conducted.Anonymised patient data was collated from TB registers from each facility,and analysed to determine if TB treatment outcomes changed significantly after integration.Results:TB treatment success was 50%(95%CI 49-52)prior to,and 69%(95%CI 65-73)after,integration(Χ243.96,p<0.00).Treatment success increased from 43%to 53%at the one-stop shop(OSS),from 69%to 78%at the partially integrated site(PIS)and substantially from 46%to 78%at the referral site(RS)(Χ264.54;p<0.01).Defaults and cases transferred out reduced from 14.3%and 15.3%prior to integration,to 1.4%and 9.0%after integration,respectively,accounting for a significant increase in treatment success.Death rates remained high at 18%in all cases studied and 25%in HIV-associated cases after integration.Conclusion:TB/HIV integration may improve TB treatment success,but its exact impact is difficult to ascertain due to non-specificity and design limitations.TB mortality may be more useful as an indicator for monitoring TB/HIV activities in Ghana.
基金Project supported by the Research Grant Council of the Hong Kong SAR,China(No.CityU11218318)the CityU Strategic Research Grant,China(No.SRG-Fd 7005446)。
文摘We introduce a dual-polarized(DP)Fabry–Perot cavity(FPC)antenna operating at the millimeter-wave(mmWave)frequency band with high-gain and wideband characteristics.A DP feeding source and a partially reflective surface(PRS)integrated with a Fresnel zone lens are suggested to realize dual-polarization wave radiation over a wide impedance bandwidth.The feeding source provides vertical and horizontal polarizations while keeping high isolation between the two polarizations.PRS is used to realize Fabry cavity to produce a directive beam radiation.The integrated Fresnel zone rings are introduced for phase correction,leading to a significant gain enhancement for the antenna.For verification,a 60-GHz FPC antenna prototype with DP radiation is designed and fabricated with measurement results.It consists of a feeding source,a PRS integrated with a Fresnel zone lens,a quasi-curved reflector,and four three-dimensional printed supporters.The results illustrate that the peak gains of vertical and horizontal polarizations are 18.4 and 17.6 dBi,respectively.The impedance matching bandwidth for the two polarizations is 14%.The performance ensures that the proposed DP FPC antenna is a promising candidate for the fifth-generation wireless communication systems in the mmWave band.
