Energy Balance-related Behaviors Are Related to Cardiometabolic Parameters and Predict Adiposity in 8-14-year-old Overweight Chinese Children One Year Later

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）.

Critical Behavior of the Energy Gap and Its Relation with the Berry Phase Close to the Excited State Quantum Phase Transition in the Lipkin Model

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.

Detecting and Repairing Data-Flow Errors in WFD-net Systems

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.

Health related behaviors among HIV-infected people who are successfully linked to care:an institutional-based crosssectional study

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.

TEMPERATURE SENSITIVITY AND PREDICTION OF THE MECHANICAL BEHAVIORS OF ULTRAFINE GRAINED ALUMINUM UNDER UNIAXIAL COMPRESSION

In the present work, we explore the strain hardening behaviors as well as the effect of temperature on the plastic deformation of ultrafine grained aluminum. The temperature sensitivity is determined and compared with that of coarse grained material. The results indicate that the flow stress of ultrafine grained aluminum displays enhanced sensitivity to temperature. The reduction in activation volume is suggested to be the major reason for the enhanced temperature sensitivity as grain size is refined into the sub-micrometer regime. Finally, a phenomenological constitutive model is proposed to describe the post-yield response of ultrafine grained aluminum.