To identify target energy balance-related behaviors（ERBs）,baseline data from 141overweight or obese schoolchildren（aged 8-14years old）was used to predict adiposity[body mass index（BMI）and fat percentage]one year...To identify target energy balance-related behaviors（ERBs）,baseline data from 141overweight or obese schoolchildren（aged 8-14years old）was used to predict adiposity[body mass index（BMI）and fat percentage]one year later.The ERBs included a modified Dietary Approach to Stop Hypertension diet score（DASH score）,leisure-time physical activity（PA,days/week）,and leisure screen time（minutes/day）.Several cardiometabolic variables were measured in the fasting state, including systolic blood pressure （SBP）, diastolic blood pressure （DBP）, blood glucose （GLU）, total cholesterol （TC）, triglycerides （TG）, low-density lipoprotein （LDL-C）, and high-density lipoprotein （HDL-C）.展开更多
In our previous work [Phys. Rev. A 85 （2012） 044102], we studied the Berry phase of the ground state and exited states in the Lipkin model. In this work, using the Hellmann-Feynman theorem, we derive the relation be...In our previous work [Phys. Rev. A 85 （2012） 044102], we studied the Berry phase of the ground state and exited states in the Lipkin model. In this work, using the Hellmann-Feynman theorem, we derive the relation between the energy gap and the Berry phase closed to the excited state quantum phase transition （ESQPT） in the Lipkin model. It is found that the energy gap is approximately linearly dependent on the Berry phase being closed to the ESQPT for large N. As a result, the critical behavior of the energy gap is similar to that of the Berry phase. In addition, we also perform a semiclassical qualitative analysis about the critical behavior of the energy gap.展开更多
Workflow system has become a standard solution for managing a complex business process.How to guarantee its correctness is a key requirement.Many methods only focus on the control-flow verification,while they neglect ...Workflow system has become a standard solution for managing a complex business process.How to guarantee its correctness is a key requirement.Many methods only focus on the control-flow verification,while they neglect the modeling and checking of data-flows.Although some studies are presented to repair the data-flow errors,they do not consider the effect of delete operations or weak circulation relations on the repairing results.What’s more,repairing some data-flow errors may bring in new errors.In order to solve these problems,we use workflow net with data(WFD-net)systems to model and analyze a workflow system.Based on weak behavioral relations and order relations in a WFD-net system,we formalize four kinds of data-flow errors.After then,we reveal the relations between these errors and organize them into a hierarchy.Furthermore,we propose some new methods to repair data-flow errors in a WFD-net system based on system requirements and repair strategies.Finally,a case study of campus-card recharging shows the applicability of our methods,and a group of experiments show their advantages and effectiveness.展开更多
Background:By the end of October 2019,there were 958 thousand people were reported living with HIV/AIDS in China.Unhealthy lifestyle factors,such as smoking,drinking alcohol,using illicit drugs and no physical activit...Background:By the end of October 2019,there were 958 thousand people were reported living with HIV/AIDS in China.Unhealthy lifestyle factors,such as smoking,drinking alcohol,using illicit drugs and no physical activity have been found to mitigate the positive impact of antiretroviral therapy(ART)on viral load and HIV-related quality of life.Moreover,risky sexual behavior among HIV-positive persons places their partners at risk for HIV transmission and other sexually transmitted infections.The aim of the study is to determine the prevalence of unhealthy behavior of people living with HIV/AIDS and related influencing factors,particularly those that are closely connected with HIV infection and ART effects.Methods:An institutional based cross-sectional study design was used to collect data from people living with HIV/AIDS(PLWHA)in Beijing and Yunnan Province.The following information was included in the questionnaire survey:social-demographic characteristics,health behavior information,sexual risk behaviors.Binary logistic regression model was conducted to analyze the influencing factors of unhealthy general health behaviors and risky sexual behaviors.Results:In total,2575 PLWHA were included in the study and 78.3%(2017/2575)were male.For the general health behaviors,34.2%(987/2544)smoke;33.8%(870/2575)drank alcohol and 2.3%(49/2134)reported the use of illicit drugs in the previous 6 months.From the sexual behaviors perspective,59.0%(1519/2575)had sex in the previous 6 months.Among people who had sex,92.0%(1398/1519)had fixed sexual partners.Among those with no fixed sexual partner,38.0%(46/121)had more than three partners.Among men who had sex,34.7%(448/1292)reported having sex with men in the previous 6 months and 167%(75/448)of these had group sexual activity.Among participants,72.2%(1053/1458)used condoms every time they had sex while 6.4%(94/1458)of people never used condom.Male people living with HIV/AIDS were more likely to have sexual risk behaviors(adjusted odds ratio[OR]=2.208,95%confidence interval[CI]:1.147-4.252)and unhealthy general health behaviors(adjusted OR=2.029,95%CI:1.480-2.783).The odds of higher risk sexual behaviors was 1.546 times(95%CI:1.302-1.827,P=0.001)greater among participants who drank alcohol compared with their non-drinking counterparts.Conclusions:PLWHA is a group that is vulnerable to problematic health behaviors,especially for men who were more likely to drink alcohol,have more sexual partners,more sexual risk behaviors including group sexual activity,not using condoms and using drugs.Therefore,interventions focusing on gender-specific risk behaviors reduction for people living with HIV/AIDS are now necessary to control the spread of HIV infection and improve the efficacy of antiviral treatment.展开更多
基金Research special fund of the Ministry of Health public service sectors funded projects(201202010)The 12th Five-year Key Project of Beijing Education Sciences Research Institute(AAA12011)
文摘To identify target energy balance-related behaviors（ERBs）,baseline data from 141overweight or obese schoolchildren（aged 8-14years old）was used to predict adiposity[body mass index（BMI）and fat percentage]one year later.The ERBs included a modified Dietary Approach to Stop Hypertension diet score（DASH score）,leisure-time physical activity（PA,days/week）,and leisure screen time（minutes/day）.Several cardiometabolic variables were measured in the fasting state, including systolic blood pressure （SBP）, diastolic blood pressure （DBP）, blood glucose （GLU）, total cholesterol （TC）, triglycerides （TG）, low-density lipoprotein （LDL-C）, and high-density lipoprotein （HDL-C）.
基金Supported by the National Natural Science Foundation of China under Grant Nos 11204012 and 91321103
文摘In our previous work [Phys. Rev. A 85 （2012） 044102], we studied the Berry phase of the ground state and exited states in the Lipkin model. In this work, using the Hellmann-Feynman theorem, we derive the relation between the energy gap and the Berry phase closed to the excited state quantum phase transition （ESQPT） in the Lipkin model. It is found that the energy gap is approximately linearly dependent on the Berry phase being closed to the ESQPT for large N. As a result, the critical behavior of the energy gap is similar to that of the Berry phase. In addition, we also perform a semiclassical qualitative analysis about the critical behavior of the energy gap.
基金supported in part by the Shanghai Science and Technology Innovation Action Plan(Grant No.19511101300)in part by the Key Laboratory of EMBEDded System and Service Computing(Ministry of Education)(Grant Nos.ESSCKF201902 and ESSCKF202102)in part by the National Nature Science Foundation of China(Grant Nos.62172299 and 62032019).
文摘Workflow system has become a standard solution for managing a complex business process.How to guarantee its correctness is a key requirement.Many methods only focus on the control-flow verification,while they neglect the modeling and checking of data-flows.Although some studies are presented to repair the data-flow errors,they do not consider the effect of delete operations or weak circulation relations on the repairing results.What’s more,repairing some data-flow errors may bring in new errors.In order to solve these problems,we use workflow net with data(WFD-net)systems to model and analyze a workflow system.Based on weak behavioral relations and order relations in a WFD-net system,we formalize four kinds of data-flow errors.After then,we reveal the relations between these errors and organize them into a hierarchy.Furthermore,we propose some new methods to repair data-flow errors in a WFD-net system based on system requirements and repair strategies.Finally,a case study of campus-card recharging shows the applicability of our methods,and a group of experiments show their advantages and effectiveness.
文摘Background:By the end of October 2019,there were 958 thousand people were reported living with HIV/AIDS in China.Unhealthy lifestyle factors,such as smoking,drinking alcohol,using illicit drugs and no physical activity have been found to mitigate the positive impact of antiretroviral therapy(ART)on viral load and HIV-related quality of life.Moreover,risky sexual behavior among HIV-positive persons places their partners at risk for HIV transmission and other sexually transmitted infections.The aim of the study is to determine the prevalence of unhealthy behavior of people living with HIV/AIDS and related influencing factors,particularly those that are closely connected with HIV infection and ART effects.Methods:An institutional based cross-sectional study design was used to collect data from people living with HIV/AIDS(PLWHA)in Beijing and Yunnan Province.The following information was included in the questionnaire survey:social-demographic characteristics,health behavior information,sexual risk behaviors.Binary logistic regression model was conducted to analyze the influencing factors of unhealthy general health behaviors and risky sexual behaviors.Results:In total,2575 PLWHA were included in the study and 78.3%(2017/2575)were male.For the general health behaviors,34.2%(987/2544)smoke;33.8%(870/2575)drank alcohol and 2.3%(49/2134)reported the use of illicit drugs in the previous 6 months.From the sexual behaviors perspective,59.0%(1519/2575)had sex in the previous 6 months.Among people who had sex,92.0%(1398/1519)had fixed sexual partners.Among those with no fixed sexual partner,38.0%(46/121)had more than three partners.Among men who had sex,34.7%(448/1292)reported having sex with men in the previous 6 months and 167%(75/448)of these had group sexual activity.Among participants,72.2%(1053/1458)used condoms every time they had sex while 6.4%(94/1458)of people never used condom.Male people living with HIV/AIDS were more likely to have sexual risk behaviors(adjusted odds ratio[OR]=2.208,95%confidence interval[CI]:1.147-4.252)and unhealthy general health behaviors(adjusted OR=2.029,95%CI:1.480-2.783).The odds of higher risk sexual behaviors was 1.546 times(95%CI:1.302-1.827,P=0.001)greater among participants who drank alcohol compared with their non-drinking counterparts.Conclusions:PLWHA is a group that is vulnerable to problematic health behaviors,especially for men who were more likely to drink alcohol,have more sexual partners,more sexual risk behaviors including group sexual activity,not using condoms and using drugs.Therefore,interventions focusing on gender-specific risk behaviors reduction for people living with HIV/AIDS are now necessary to control the spread of HIV infection and improve the efficacy of antiviral treatment.
