An experiment is made to detect the land-cover change in the area located to the south of Aksu in the northern Taklimakan desert through analyses of satellite data pixel by pixel basis. The analyzed data are those obs...An experiment is made to detect the land-cover change in the area located to the south of Aksu in the northern Taklimakan desert through analyses of satellite data pixel by pixel basis. The analyzed data are those observed in the late summer and early autumn of 1973, 1977, 1993 and 1995. As a parameter of land-cover, SAVI (Soil Adjusted Vegetation Index) derived from the data of Landsat MSS and JERS-1 OPS (Optical Sensor) is used. The result indicates the increase of vegetation in the oasis areas, confluent area of the Yarkant and Kashgar Rivers and around reservoirs while little change occurs in the desert area. The 1973 satellite image shows the abundant flow in the Yarkant River while the river is almost dried up in the satellite images of later years. The trend of the decrease in the Hotan River flow is recognized although not so dramatic as that of the Yarkant River.展开更多
The strategic partnership between China and Russia is creating solid ground for the cooperative development of the Arctic. These two states＇ joint development of the Northern Sea Route will not only provide additiona...The strategic partnership between China and Russia is creating solid ground for the cooperative development of the Arctic. These two states＇ joint development of the Northern Sea Route will not only provide additional impulse to the export- oriented economy of China and allow further diversification of supply routes to China, but will also promote investment into the infrastructure and economic growth of Russian northern territories. Climate change in the Arctic has forced China and Russia to acknowledge the sustainable use of the Arctic. On the one hand, exploration of the region should not harm indigenous people＇s rights and should help this population improve their standard of living by providing qualified healthcare and opportunities for commercial fulfillment of traditional crafts. On the other hand, this exploration should also include elimination of harmful anthropogenic impact and provide support for environment self-restoration. Sino-Russian Arctic cooperation will help humans discover eco-friendly approaches to use Arctic resources, promote rational use of the Arctic and inspire sustainable development of the region.展开更多
Older adults faced unique challenges in the pandemic due to their increased vulnerability to coronavirus disease 2019(COVID-19)and its complications.Pandemic-related restrictions such as physical distancing,stay-at-ho...Older adults faced unique challenges in the pandemic due to their increased vulnerability to coronavirus disease 2019(COVID-19)and its complications.Pandemic-related restrictions such as physical distancing,stay-at-home orders,lock-down,and mandatory face cover affected older adults in unique ways.Additionally,older adults experienced psychosocial concerns related to discrimination based on ageism and emotional distress from exposure to conflicting messages in the media.They experienced several forms of loss and associated grief and survivor guilt.Pandemic added to their loneliness and social isolation.Furthermore,older adults experienced the fear and anxiety related to COVID and the fear of contracting the disease and dying from it.Pandemic experience included events potential to generate the desire and capability for suicide.Several studies report varying symptoms such as loneliness,anxiety,and depression among older adults during the pandemic.However,during the initial months of the pandemic,there were reports on coping and resilience among this population.The impact of COVID-19 on older adults’mental health may have long-term implications.This narrative review examines the impact of COVID-19 on older adults’mental health and psychosocial wellbeing.Additionally,the review highlights various factors that affected their psychosocial wellbeing during the COVID-19 pandemic.展开更多
To keep pace with the global trend of digital transformation,the Inland Revenue Department of Hong Kong SAR,China(HKIRD)has embarked on its digital transformation journey to upgrade its information technology(IT)infra...To keep pace with the global trend of digital transformation,the Inland Revenue Department of Hong Kong SAR,China(HKIRD)has embarked on its digital transformation journey to upgrade its information technology(IT)infrastructure and pave the way for full adoption of electronic filing(e-filing)of profits tax returns for businesses(the e-filing project).The e-filing project was implemented in phases starting from June 2020 and expects full implementation by June 2025.The first phase of the digital transformation was successfully implemented earlier this year allowing more businesses to voluntarily e-file their profits tax returns.This article discusses the motivations behind the HKIRD’s e-filing project,the implementation process as well as its implications for Hong Kong SAR,China.Digital transformation is an inevitable development in the society and commerce.To keep pace with the global trend of digital transformation,the public sectors in various jurisdictions have been digitalising financial and tax reporting over the past decades to harness IT to improve delivery of public services to customers and enhance the standard of information collection and administration.展开更多
文摘An experiment is made to detect the land-cover change in the area located to the south of Aksu in the northern Taklimakan desert through analyses of satellite data pixel by pixel basis. The analyzed data are those observed in the late summer and early autumn of 1973, 1977, 1993 and 1995. As a parameter of land-cover, SAVI (Soil Adjusted Vegetation Index) derived from the data of Landsat MSS and JERS-1 OPS (Optical Sensor) is used. The result indicates the increase of vegetation in the oasis areas, confluent area of the Yarkant and Kashgar Rivers and around reservoirs while little change occurs in the desert area. The 1973 satellite image shows the abundant flow in the Yarkant River while the river is almost dried up in the satellite images of later years. The trend of the decrease in the Hotan River flow is recognized although not so dramatic as that of the Yarkant River.
基金supported by the National Social Science Foundation of China“Study on the Construction of a Cooperative Legal Regime for Arctic Governance and China’s Effective Participation”(Grant no.16BFX188)
文摘The strategic partnership between China and Russia is creating solid ground for the cooperative development of the Arctic. These two states＇ joint development of the Northern Sea Route will not only provide additional impulse to the export- oriented economy of China and allow further diversification of supply routes to China, but will also promote investment into the infrastructure and economic growth of Russian northern territories. Climate change in the Arctic has forced China and Russia to acknowledge the sustainable use of the Arctic. On the one hand, exploration of the region should not harm indigenous people＇s rights and should help this population improve their standard of living by providing qualified healthcare and opportunities for commercial fulfillment of traditional crafts. On the other hand, this exploration should also include elimination of harmful anthropogenic impact and provide support for environment self-restoration. Sino-Russian Arctic cooperation will help humans discover eco-friendly approaches to use Arctic resources, promote rational use of the Arctic and inspire sustainable development of the region.
文摘Older adults faced unique challenges in the pandemic due to their increased vulnerability to coronavirus disease 2019(COVID-19)and its complications.Pandemic-related restrictions such as physical distancing,stay-at-home orders,lock-down,and mandatory face cover affected older adults in unique ways.Additionally,older adults experienced psychosocial concerns related to discrimination based on ageism and emotional distress from exposure to conflicting messages in the media.They experienced several forms of loss and associated grief and survivor guilt.Pandemic added to their loneliness and social isolation.Furthermore,older adults experienced the fear and anxiety related to COVID and the fear of contracting the disease and dying from it.Pandemic experience included events potential to generate the desire and capability for suicide.Several studies report varying symptoms such as loneliness,anxiety,and depression among older adults during the pandemic.However,during the initial months of the pandemic,there were reports on coping and resilience among this population.The impact of COVID-19 on older adults’mental health may have long-term implications.This narrative review examines the impact of COVID-19 on older adults’mental health and psychosocial wellbeing.Additionally,the review highlights various factors that affected their psychosocial wellbeing during the COVID-19 pandemic.
文摘To keep pace with the global trend of digital transformation,the Inland Revenue Department of Hong Kong SAR,China(HKIRD)has embarked on its digital transformation journey to upgrade its information technology(IT)infrastructure and pave the way for full adoption of electronic filing(e-filing)of profits tax returns for businesses(the e-filing project).The e-filing project was implemented in phases starting from June 2020 and expects full implementation by June 2025.The first phase of the digital transformation was successfully implemented earlier this year allowing more businesses to voluntarily e-file their profits tax returns.This article discusses the motivations behind the HKIRD’s e-filing project,the implementation process as well as its implications for Hong Kong SAR,China.Digital transformation is an inevitable development in the society and commerce.To keep pace with the global trend of digital transformation,the public sectors in various jurisdictions have been digitalising financial and tax reporting over the past decades to harness IT to improve delivery of public services to customers and enhance the standard of information collection and administration.
