BACKGROUND Studies have indicated that childhood exposure to domestic violence is a common factor in posttraumatic growth(PTG)and posttraumatic stress disorder(PTSD),but it is unclear whether PTG and PTSD share a comm...BACKGROUND Studies have indicated that childhood exposure to domestic violence is a common factor in posttraumatic growth(PTG)and posttraumatic stress disorder(PTSD),but it is unclear whether PTG and PTSD share a common/different underlying mechanism.AIM To explore the common/different underlying mechanism of PTG and PTSD.METHODS Between February 12 and 17,2020,a nationwide cross-sectional online survey was conducted in China among 2038 university students,and a self-administered questionnaire was used for the data collection.The data included demographic characteristics,such as age,gender,and subjective social economic status,and childhood exposure to domestic violence scale that was selected from the Chinese version of revised Adverse Childhood Experiences Question,Self-compassion Scale,Connor–Davidson Resilience Scale,Posttraumatic Growth Inventory,and the Abbreviated PTSD Checklist-Civilian version.A structural equation model was used to test the hypotheses.RESULTS Exposure to domestic violence was significantly associated with PTG and PTSD via a 1-step indirect path of self-compassion(PTG:β=-0.023,95%CI:-0.44 to-0.007;PTSD:β=0.008,95%CI:0.002,0.014)and via a 2-step indirect path from self-compassion to resilience(PTG:β=-0.008,95%CI:-0.018 to-0.002;PTSD:β=0.013,95%CI:0.004-0.024).However,resilience did not mediate the relationship between exposure to domestic violence and PTG and PTSD.CONCLUSION PTG and PTSD are common results of childhood exposure to domestic violence,which may be influenced by self-compassion and resilience.展开更多
Spatial characteristics of Thomson scattering spectra are studied for an electron moving in the circularly polarized laser field in the presence of a strong uniform magnetic field. The results show that the angular di...Spatial characteristics of Thomson scattering spectra are studied for an electron moving in the circularly polarized laser field in the presence of a strong uniform magnetic field. The results show that the angular distributions of the spectra with respect to the azimuthal and polar angles exhibit different symmetries, respectively, which depend on the fields and electron parameters sensitively and significantly. Moreover, for relatively large parameters such as high laser intensity, high magnetic resonance parameter as well as large initial momentum of electron, the two lobes in spectra tend to the laser-propagating direction so that the radiation can be collimated in the forward direction. Furthermore, an important finding is that by choosing the appropriate fields and initial momentum of electron, the high frequency part of the Thomson scattering spectra can reach the frequency range of soft x-ray,in which a high radiation power per solid angle as ~10^11 a.u. can be obtained.展开更多
In this paper,we introduce the notions of bounded invariance complexity,bounded invariance complexity in the mean and mean Lyapunov-stability for control systems.Then we characterize these notions by introducing six t...In this paper,we introduce the notions of bounded invariance complexity,bounded invariance complexity in the mean and mean Lyapunov-stability for control systems.Then we characterize these notions by introducing six types of equi-invariability.As a by-product,two new dichotomy theorems for the control system on the control sets are established.展开更多
In this paper,we study the well-posedness and the asymptotic stability of a one-dimensional thermoelastic microbeam system,where the heat conduction is given by Gurtin-Pipkin thermal law.We first establish the well-po...In this paper,we study the well-posedness and the asymptotic stability of a one-dimensional thermoelastic microbeam system,where the heat conduction is given by Gurtin-Pipkin thermal law.We first establish the well-posedness of the system by using the semigroup arguments and Lumer-Phillips theorem.We then obtain an explicit and general formula for the energy decay rates through perturbed energy method and some properties of the convex functions.展开更多
文摘BACKGROUND Studies have indicated that childhood exposure to domestic violence is a common factor in posttraumatic growth(PTG)and posttraumatic stress disorder(PTSD),but it is unclear whether PTG and PTSD share a common/different underlying mechanism.AIM To explore the common/different underlying mechanism of PTG and PTSD.METHODS Between February 12 and 17,2020,a nationwide cross-sectional online survey was conducted in China among 2038 university students,and a self-administered questionnaire was used for the data collection.The data included demographic characteristics,such as age,gender,and subjective social economic status,and childhood exposure to domestic violence scale that was selected from the Chinese version of revised Adverse Childhood Experiences Question,Self-compassion Scale,Connor–Davidson Resilience Scale,Posttraumatic Growth Inventory,and the Abbreviated PTSD Checklist-Civilian version.A structural equation model was used to test the hypotheses.RESULTS Exposure to domestic violence was significantly associated with PTG and PTSD via a 1-step indirect path of self-compassion(PTG:β=-0.023,95%CI:-0.44 to-0.007;PTSD:β=0.008,95%CI:0.002,0.014)and via a 2-step indirect path from self-compassion to resilience(PTG:β=-0.008,95%CI:-0.018 to-0.002;PTSD:β=0.013,95%CI:0.004-0.024).However,resilience did not mediate the relationship between exposure to domestic violence and PTG and PTSD.CONCLUSION PTG and PTSD are common results of childhood exposure to domestic violence,which may be influenced by self-compassion and resilience.
基金Supported by the National Natural Science Foundation of China under Grant Nos 11875007 and 11305010
文摘Spatial characteristics of Thomson scattering spectra are studied for an electron moving in the circularly polarized laser field in the presence of a strong uniform magnetic field. The results show that the angular distributions of the spectra with respect to the azimuthal and polar angles exhibit different symmetries, respectively, which depend on the fields and electron parameters sensitively and significantly. Moreover, for relatively large parameters such as high laser intensity, high magnetic resonance parameter as well as large initial momentum of electron, the two lobes in spectra tend to the laser-propagating direction so that the radiation can be collimated in the forward direction. Furthermore, an important finding is that by choosing the appropriate fields and initial momentum of electron, the high frequency part of the Thomson scattering spectra can reach the frequency range of soft x-ray,in which a high radiation power per solid angle as ~10^11 a.u. can be obtained.
基金National Natural Science Foundation of China(Grant No.11771459)supported by Research Funds of Guangdong University of Foreign Studies(Grant Nos.299-X5218165 and 299-X5219222)+3 种基金Guangdong Basic and Applied Basic Research Foundation(Grant No.2019A1515110932)supported by National Natural Science Foundation of China(Grant Nos.11701584 and 11871228)the Natural Science Research Project of Guangdong Province(Grant No.2018KTSCX122)。
文摘In this paper,we introduce the notions of bounded invariance complexity,bounded invariance complexity in the mean and mean Lyapunov-stability for control systems.Then we characterize these notions by introducing six types of equi-invariability.As a by-product,two new dichotomy theorems for the control system on the control sets are established.
基金supported by the Natural Science Foundation of China(No.11771216)the Key Research and Development Program of Jiangsu Province(Social Development)(No.BE2019725)the Qing Lan Project of Jiangsu Province。
文摘In this paper,we study the well-posedness and the asymptotic stability of a one-dimensional thermoelastic microbeam system,where the heat conduction is given by Gurtin-Pipkin thermal law.We first establish the well-posedness of the system by using the semigroup arguments and Lumer-Phillips theorem.We then obtain an explicit and general formula for the energy decay rates through perturbed energy method and some properties of the convex functions.