This study aimed to explore associations of sport participation with anxiety and depressive symptoms among Chi-nese minority adolescents.A cross-sectional study was conducted among Chinese adolescents in Tibet.A conve...This study aimed to explore associations of sport participation with anxiety and depressive symptoms among Chi-nese minority adolescents.A cross-sectional study was conducted among Chinese adolescents in Tibet.A conve-nience sample method was used to select participants.Finally,1452 students completed the survey and 1421(52.10%girls,Grades 4–9,13.46±1.41 years old)adolescents met the inclusion criteria of analysis.Sociodemo-graphic variables,sport participation,depression and anxiety were evaluated by self-reported questionnaires.Among 1421 participants,80%of adolescents lived in rural area and more than fourfifths of participants had siblings.The parent’s education level of participants was mostly middle school and below.The prevalence of par-ticipating in sport more than 3 times per week was only 7%.More than one-third of adolescents reported they never engaged in sport and 36.5%of adolescents took part in sport 1–3 times per month.In comparison with participants who never engaging in sport participation,those who engaging in one to three time/month(OR=0.71%,95%CI:0.54–0.93)and more than 3 times/week(OR=0.50%,95%CI:0.32–0.79)were less likely to report severe depression symptoms.Compared with participants who never had sport participation,only those counterparts who engaged in sport more than 3 times/week had lower odds for severe anxiety(OR=0.46%,95%CI:0.29–0.73).These results indicated that engaging in sport participation was negatively associated with depres-sion and anxiety.There is an urgent need to improve the level of sport participation for Chinese minority ado-lescents,and to explore the mechanism of exercise under hypoxia on mental health.展开更多
Landslide inventory plays an important role in recording landslide events and showing their temporal-spatial distribution. This paper describes the development, visualization, and analysis of a China's Landslide I...Landslide inventory plays an important role in recording landslide events and showing their temporal-spatial distribution. This paper describes the development, visualization, and analysis of a China's Landslide Inventory Database(Cs LID) by utilizing Google's public cloud computing platform. Firstly, Cs LID(Landslide Inventory Database) compiles a total of 1221 historical landslide events spanning the years 1949-2011 from relevant data sources. Secondly, the Cs LID is further broken down into six zones for characterizing landslide cause-effect, spatiotemporal distribution, fatalities, and socioeconomic impacts based on the geological environment and terrain. The results show that among all the six zones, zone V, located in Qinba and Southwest Mountainous Area is the most active landslide hotspot with the highest landslide hazard in China. Additionally, the Google public cloud computing platform enables the Cs LID to be easily accessible, visually interactive, and with the capability of allowing new data input to dynamically augment the database. This work developed a cyber-landslide inventory and used it to analyze the landslide temporal-spatial distribution in China.展开更多
This study systematically evaluates the recovery of rare earth elements（REEs） from aqueous solution and industrial wastewater using magnetic nanoparticles CuFe2O4. The industrially manufactured CuFe2O4 displays a no...This study systematically evaluates the recovery of rare earth elements（REEs） from aqueous solution and industrial wastewater using magnetic nanoparticles CuFe2O4. The industrially manufactured CuFe2O4 displays a nonlinear isotherm for REEs adsorption, suggesting limiting binding sites on the CuFe2O4 surface. The recovery of REEs increases significantly from 0.1% to 99.99% with increasing pH（2.29-8.15）. At room temperature, the maxima recovery rates of Nd, La, and Ce are observed to be in a high capacity of 51.02, 42.02, and 40.16 mg/g, respectively. No significant attenuation of REE adsorption is observed with increasing NaCl concentration from 0.001 to 1.0 mol/L, showing high selectivity of REEs even in such high NaCl concentration matrix. In addition, desorption efficiency increases with the increasing concentration of HNO3 in the range of 0.005-0.05 mol/L. When HNO3 concentration is over 0.05 mol/L, the desorption efficiency can reach almost 100% in each batch experiment. Importantly, our results show that REEs can be sorbed and recycled from liquid crystal display（LCD） polishing wastewater, suggesting that CuFe2O4 may be a good candidate in the efficient and rapid recovery of REEs from industrial wastewater.展开更多
Data scarcity is a major obstacle for high-resolution mapping of permafrost on the Tibetan Plateau(TP).This study produces a new permafrost stability distribution map for the 2010 s(2005–2015)derived from the predict...Data scarcity is a major obstacle for high-resolution mapping of permafrost on the Tibetan Plateau(TP).This study produces a new permafrost stability distribution map for the 2010 s(2005–2015)derived from the predicted mean annual ground temperature(MAGT)at a depth of zero annual amplitude(10–25 m)by integrating remotely sensed freezing degree-days and thawing degree-days,snow cover days,leaf area index,soil bulk density,high-accuracy soil moisture data,and in situ MAGT measurements from 237 boreholes on the TP by using an ensemble learning method that employs a support vector regression model based on distance-blocked resampled training data with 200 repetitions.Validation of the new permafrost map indicates that it is probably the most accurate of all currently available maps.This map shows that the total area of permafrost on the TP,excluding glaciers and lakes,is approximately 115.02(105.47–129.59)×10^4 km^2.The areas corresponding to the very stable,stable,semi-stable,transitional,and unstable types are 0.86×10^4,9.62×10^4,38.45×10^4,42.29×10^4,and 23.80×10^4 km^2,respectively.This new map is of fundamental importance for engineering planning and design,ecosystem management,and evaluation of the permafrost change in the future on the TP as a baseline.展开更多
Diverse evidence suggests that the sustainability of endorheic regions will be the underbelly of achieving the transformative promise“leave no one behind”of the Sustainable Development Goals(SDGs)proposed by the Uni...Diverse evidence suggests that the sustainability of endorheic regions will be the underbelly of achieving the transformative promise“leave no one behind”of the Sustainable Development Goals(SDGs)proposed by the United Nations;for example,“Aral Sea Syndrome”[1],“basin closure symptom”[2],and saline lake salinization[3]are undermining life support systems and human wellbeing[4].Global warming is reducing the amount of solid water resources in mountainous regions[5],which,in turn,threatens the Asia water tower[6]that supports local life systems.展开更多
An empirical simulation method to simulate the possible position of shallow rainfall-induced landslides in China has been developed.This study shows that such a simulation may be operated in real-time to highlight tho...An empirical simulation method to simulate the possible position of shallow rainfall-induced landslides in China has been developed.This study shows that such a simulation may be operated in real-time to highlight those areas that are highly prone to rainfall-induced landslides on the basis of the landslide susceptibility index and the rainfall intensity-duration(I-D) thresholds.First,the study on landslide susceptibility in China is introduced.The entire territory has been classified into five categories,among which high-susceptibility regions(Zone 4-'High' and 5-'Very high') account for 4.15%of the total extension of China.Second,rainfall is considered as an external triggering factor that may induce landslide initiation.Real-time satellite-based TMPA3B42 products may provide real rainfall spatial and temporal patterns,which may be used to derive rainfall duration time and intensity.By using a historical record of 60 significant past landslides,the rainfall I-D equation has been calibrated.The rainfall duration time that may trigger a landslide has resulted between 3 hours and 45 hours.The combination of these two aspects can be exploited to simulate the spatiotemporal distribution of rainfall-induced landslide hazards when rainfall events exceed the rainfall I-D thresholds,where the susceptibility category is 'high' or 'very high'.This study shows a useful tool to be part of a systematic landslide simulation methodology,potentially providing useful information for a theoretical basis and practical guide for landslide prediction and mitigation throughout China.展开更多
The booming real estate sector in China demands for more planners with real estate knowledge and skills, but real estate training has been marginalized in the existing physical-dominated planning education system. Aft...The booming real estate sector in China demands for more planners with real estate knowledge and skills, but real estate training has been marginalized in the existing physical-dominated planning education system. After reviewing the related international experiences, this paper examines the necessities and benef its of integrating real estate into China's planning education. It also explains the paradox embedded in the existing planning education system and considers how to restructure the planning education paradigm, so that it will provide better real estate training. The objectives here are to strengthen the curriculum, diversify students' and faculty backgrounds, seek effective ways to interact with the real estate industry, and differentiate the planning programs. The integration of real estate into planning education can cultivate more interdisciplinary professionals and should be a concern for more planning educators.展开更多
文摘This study aimed to explore associations of sport participation with anxiety and depressive symptoms among Chi-nese minority adolescents.A cross-sectional study was conducted among Chinese adolescents in Tibet.A conve-nience sample method was used to select participants.Finally,1452 students completed the survey and 1421(52.10%girls,Grades 4–9,13.46±1.41 years old)adolescents met the inclusion criteria of analysis.Sociodemo-graphic variables,sport participation,depression and anxiety were evaluated by self-reported questionnaires.Among 1421 participants,80%of adolescents lived in rural area and more than fourfifths of participants had siblings.The parent’s education level of participants was mostly middle school and below.The prevalence of par-ticipating in sport more than 3 times per week was only 7%.More than one-third of adolescents reported they never engaged in sport and 36.5%of adolescents took part in sport 1–3 times per month.In comparison with participants who never engaging in sport participation,those who engaging in one to three time/month(OR=0.71%,95%CI:0.54–0.93)and more than 3 times/week(OR=0.50%,95%CI:0.32–0.79)were less likely to report severe depression symptoms.Compared with participants who never had sport participation,only those counterparts who engaged in sport more than 3 times/week had lower odds for severe anxiety(OR=0.46%,95%CI:0.29–0.73).These results indicated that engaging in sport participation was negatively associated with depres-sion and anxiety.There is an urgent need to improve the level of sport participation for Chinese minority ado-lescents,and to explore the mechanism of exercise under hypoxia on mental health.
基金funded by National Natural Science Foundation (Grant No. 41501458)National Natural Science Foundation (Grant No. 41201380)+4 种基金National Basic Research Program of China: (Grant No. 2013CB733204)Key Laboratory of Mining Spatial Information Technology of NASMG (KLM201309)Science Program of Shanghai Normal University (SK201525)sponsored by Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development, project 2013LASW-A09, project SKHL1310the Center of Spatial Information Science and Sustainable Development Applications, Tongji University, Shanghai, China
文摘Landslide inventory plays an important role in recording landslide events and showing their temporal-spatial distribution. This paper describes the development, visualization, and analysis of a China's Landslide Inventory Database(Cs LID) by utilizing Google's public cloud computing platform. Firstly, Cs LID(Landslide Inventory Database) compiles a total of 1221 historical landslide events spanning the years 1949-2011 from relevant data sources. Secondly, the Cs LID is further broken down into six zones for characterizing landslide cause-effect, spatiotemporal distribution, fatalities, and socioeconomic impacts based on the geological environment and terrain. The results show that among all the six zones, zone V, located in Qinba and Southwest Mountainous Area is the most active landslide hotspot with the highest landslide hazard in China. Additionally, the Google public cloud computing platform enables the Cs LID to be easily accessible, visually interactive, and with the capability of allowing new data input to dynamically augment the database. This work developed a cyber-landslide inventory and used it to analyze the landslide temporal-spatial distribution in China.
基金Project supported by Shanghai Natural Science Foundation(17ZR1420700)State Key Laboratory of Pollution Control and Resource Reuse Foundation(PCRRF16013)Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development
文摘This study systematically evaluates the recovery of rare earth elements（REEs） from aqueous solution and industrial wastewater using magnetic nanoparticles CuFe2O4. The industrially manufactured CuFe2O4 displays a nonlinear isotherm for REEs adsorption, suggesting limiting binding sites on the CuFe2O4 surface. The recovery of REEs increases significantly from 0.1% to 99.99% with increasing pH（2.29-8.15）. At room temperature, the maxima recovery rates of Nd, La, and Ce are observed to be in a high capacity of 51.02, 42.02, and 40.16 mg/g, respectively. No significant attenuation of REE adsorption is observed with increasing NaCl concentration from 0.001 to 1.0 mol/L, showing high selectivity of REEs even in such high NaCl concentration matrix. In addition, desorption efficiency increases with the increasing concentration of HNO3 in the range of 0.005-0.05 mol/L. When HNO3 concentration is over 0.05 mol/L, the desorption efficiency can reach almost 100% in each batch experiment. Importantly, our results show that REEs can be sorbed and recycled from liquid crystal display（LCD） polishing wastewater, suggesting that CuFe2O4 may be a good candidate in the efficient and rapid recovery of REEs from industrial wastewater.
基金the National Natural Science Foundation of China(42041004 and 52209027)the Strategic Priority Research Program of Chinese Academy of Sciences(XDA20100103)+3 种基金the support from the China Postdoctoral Science Foundation(2022M711857)the Postdoctoral Innovation Talents Support Program of China(BX2021166)the Shuimu Tsinghua Scholar Programthe financial support from the National Natural Science Foundation of China(42071029)。
基金supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA19070204)the National Natural Science Foundation of China(Grant Nos.42071421,41630856)。
文摘Data scarcity is a major obstacle for high-resolution mapping of permafrost on the Tibetan Plateau(TP).This study produces a new permafrost stability distribution map for the 2010 s(2005–2015)derived from the predicted mean annual ground temperature(MAGT)at a depth of zero annual amplitude(10–25 m)by integrating remotely sensed freezing degree-days and thawing degree-days,snow cover days,leaf area index,soil bulk density,high-accuracy soil moisture data,and in situ MAGT measurements from 237 boreholes on the TP by using an ensemble learning method that employs a support vector regression model based on distance-blocked resampled training data with 200 repetitions.Validation of the new permafrost map indicates that it is probably the most accurate of all currently available maps.This map shows that the total area of permafrost on the TP,excluding glaciers and lakes,is approximately 115.02(105.47–129.59)×10^4 km^2.The areas corresponding to the very stable,stable,semi-stable,transitional,and unstable types are 0.86×10^4,9.62×10^4,38.45×10^4,42.29×10^4,and 23.80×10^4 km^2,respectively.This new map is of fundamental importance for engineering planning and design,ecosystem management,and evaluation of the permafrost change in the future on the TP as a baseline.
基金This work was jointly supported by the Strategic Priority Research Program of Chinese Academy of Sciences(XDA20100104)the National Natural Science Foundation of China(41988101,41630856,and 41471448)the Pioneer Hundred Talents Program of Chinese Academy of Sciences(Y551821002).
文摘Diverse evidence suggests that the sustainability of endorheic regions will be the underbelly of achieving the transformative promise“leave no one behind”of the Sustainable Development Goals(SDGs)proposed by the United Nations;for example,“Aral Sea Syndrome”[1],“basin closure symptom”[2],and saline lake salinization[3]are undermining life support systems and human wellbeing[4].Global warming is reducing the amount of solid water resources in mountainous regions[5],which,in turn,threatens the Asia water tower[6]that supports local life systems.
基金supported by the National Natural Science Foundation of China(Grant No.41501458)China Postdoctoral Science Foundation Funded Project(Grant No.2016M592860)+4 种基金National Basic Research Program of China(Grant No.2013CB733204)Key Laboratory of Mining Spatial Information Technology of NASMG(Grant Nos. KLM201309)Science Program of Shanghai Normal University(Grant No. SK201525)the Shanghai Gaofeng & Gaoyuan Project for University Academic Program Development(Grant Nos.2013LASW-A09 & SKHL1310)the Center of Spatial Information Science and Sustainable Development Applications,Tongji University,Shanghai,China
文摘An empirical simulation method to simulate the possible position of shallow rainfall-induced landslides in China has been developed.This study shows that such a simulation may be operated in real-time to highlight those areas that are highly prone to rainfall-induced landslides on the basis of the landslide susceptibility index and the rainfall intensity-duration(I-D) thresholds.First,the study on landslide susceptibility in China is introduced.The entire territory has been classified into five categories,among which high-susceptibility regions(Zone 4-'High' and 5-'Very high') account for 4.15%of the total extension of China.Second,rainfall is considered as an external triggering factor that may induce landslide initiation.Real-time satellite-based TMPA3B42 products may provide real rainfall spatial and temporal patterns,which may be used to derive rainfall duration time and intensity.By using a historical record of 60 significant past landslides,the rainfall I-D equation has been calibrated.The rainfall duration time that may trigger a landslide has resulted between 3 hours and 45 hours.The combination of these two aspects can be exploited to simulate the spatiotemporal distribution of rainfall-induced landslide hazards when rainfall events exceed the rainfall I-D thresholds,where the susceptibility category is 'high' or 'very high'.This study shows a useful tool to be part of a systematic landslide simulation methodology,potentially providing useful information for a theoretical basis and practical guide for landslide prediction and mitigation throughout China.
基金the Philosophy and Social Science Research Project of Jiangsu Higher Education Institutions (No. 2015SJB142)the Collaborative Innovation Center for New Urbanization and Social Governance in Jiangsu Province
文摘The booming real estate sector in China demands for more planners with real estate knowledge and skills, but real estate training has been marginalized in the existing physical-dominated planning education system. After reviewing the related international experiences, this paper examines the necessities and benef its of integrating real estate into China's planning education. It also explains the paradox embedded in the existing planning education system and considers how to restructure the planning education paradigm, so that it will provide better real estate training. The objectives here are to strengthen the curriculum, diversify students' and faculty backgrounds, seek effective ways to interact with the real estate industry, and differentiate the planning programs. The integration of real estate into planning education can cultivate more interdisciplinary professionals and should be a concern for more planning educators.
