In this study a model is conceptualized to measure the child mortality under different parity of women such that a better strategy can be formulated to bring down mortality rates. In the estimation of probability of c...In this study a model is conceptualized to measure the child mortality under different parity of women such that a better strategy can be formulated to bring down mortality rates. In the estimation of probability of child mortality some socio demographic variables are taken in consideration. The estimates are obtained under Bayesian procedure. Two different models are formulated for it and model fitting is observed by graphical approach along with the chi square test. First model is betabinomial and second is binomial regression model. Second model shows the better fit on the data. The estimate of probability of child mortality at higher parities namely, parity 3, parity 4 and parity 5 were obtained as 0.06, 0.09 and 0.13 respectively on the basis of the second model.展开更多
We present a mathematical model of a day care center in a developed country (such as Canada), in order to use it for the estimation of individual-to-individual contact rates in young age groups and in an educational g...We present a mathematical model of a day care center in a developed country (such as Canada), in order to use it for the estimation of individual-to-individual contact rates in young age groups and in an educational group setting. In our model, individuals in the population are children (ages 1.5 to 4 years) and staff, and their interactions are modelled explicitly: person-to-person and person-to-environment, with a very high time resolution. Their movement and meaningful contact patterns are simulated and then calibrated with collected data from a child care facility as a case study. We present these calibration results as a first part in the further development of our model for testing and estimating the spread of infectious diseases within child care centers.展开更多
目的从青少年人格-家庭环境交互作用的视角,考察亲子关系及环境敏感性对青少年心理问题的共同作用。方法2023年3月-5月在陕西省西安市6个地区随机选取12所中学开展横断面研究,以7010名青少年为研究对象,采用高敏感儿童量表(Highly Sensi...目的从青少年人格-家庭环境交互作用的视角,考察亲子关系及环境敏感性对青少年心理问题的共同作用。方法2023年3月-5月在陕西省西安市6个地区随机选取12所中学开展横断面研究,以7010名青少年为研究对象,采用高敏感儿童量表(Highly Sensitive Child Scale,HSC),病人健康问卷(Patient Health Questionnaire-9,PHQ-9),长处和困难问卷(Strengths and Difficulties Questionnaire,SDQ)和幸福指数量表分别评估青少年的环境敏感性及心理健康水平。结果①女生与男生相比,对环境更加敏感(t=-7.504,P<0.01);②在预测青少年抑郁情绪和外化问题时,亲子冲突、支持和环境敏感性主效应显著(b=-0.263、0.237、0.332,P<0.001;b=0.201、0.220,P<0.001),同时亲子冲突与环境敏感性的交互作用显著(b=-0.072,P<0.05;b=0.092,P<0.05);③Widaman’s的验证和竞争分析发现,亲子冲突与环境敏感性对抑郁情绪和外化行为的交互作用分别支持差异敏感和素质-压力模型(BIC=2170.98、2162.6)。结论高环境敏感性的青少年更易受与父母更多冲突关系的负面影响,也更易从低水平冲突关系中获益,环境敏感性可能是一种易感因素而非脆弱因素。展开更多
It is important to verify the safety of electric vehicle(EV)wireless power transmission for child passengers by studying the electromagnetic exposure difference between the child passengers and the adult passengers.Th...It is important to verify the safety of electric vehicle(EV)wireless power transmission for child passengers by studying the electromagnetic exposure difference between the child passengers and the adult passengers.The dielectric parameters of the child passengers’body were calculated under the operating frequency of 85 kHz.Using the finite element simulation software COMSOL Multiphysics,a model was established for the child passengers and adult passengers when the EVs charged by the wireless charging coil.This paper analyzed the distribution of magnetic induction intensity and induced electric field intensity generated on the body and head when the child passengers and adult passengers sat in four different positions.Additionally,the difference between the brain electromagnetic exposure values of children and adults was analyzed and compared with the limits set.The results showed that the electromagnetic exposure was the largest when the passenger sat in the co-driver position.The electromagnetic exposure level of child was slightly higher than that of adult at the same position,and the magnetic induction intensity and induced electric field intensity of both were much smaller than the public electromagnetic exposure recommendation values.展开更多
文摘In this study a model is conceptualized to measure the child mortality under different parity of women such that a better strategy can be formulated to bring down mortality rates. In the estimation of probability of child mortality some socio demographic variables are taken in consideration. The estimates are obtained under Bayesian procedure. Two different models are formulated for it and model fitting is observed by graphical approach along with the chi square test. First model is betabinomial and second is binomial regression model. Second model shows the better fit on the data. The estimate of probability of child mortality at higher parities namely, parity 3, parity 4 and parity 5 were obtained as 0.06, 0.09 and 0.13 respectively on the basis of the second model.
文摘We present a mathematical model of a day care center in a developed country (such as Canada), in order to use it for the estimation of individual-to-individual contact rates in young age groups and in an educational group setting. In our model, individuals in the population are children (ages 1.5 to 4 years) and staff, and their interactions are modelled explicitly: person-to-person and person-to-environment, with a very high time resolution. Their movement and meaningful contact patterns are simulated and then calibrated with collected data from a child care facility as a case study. We present these calibration results as a first part in the further development of our model for testing and estimating the spread of infectious diseases within child care centers.
文摘目的从青少年人格-家庭环境交互作用的视角,考察亲子关系及环境敏感性对青少年心理问题的共同作用。方法2023年3月-5月在陕西省西安市6个地区随机选取12所中学开展横断面研究,以7010名青少年为研究对象,采用高敏感儿童量表(Highly Sensitive Child Scale,HSC),病人健康问卷(Patient Health Questionnaire-9,PHQ-9),长处和困难问卷(Strengths and Difficulties Questionnaire,SDQ)和幸福指数量表分别评估青少年的环境敏感性及心理健康水平。结果①女生与男生相比,对环境更加敏感(t=-7.504,P<0.01);②在预测青少年抑郁情绪和外化问题时,亲子冲突、支持和环境敏感性主效应显著(b=-0.263、0.237、0.332,P<0.001;b=0.201、0.220,P<0.001),同时亲子冲突与环境敏感性的交互作用显著(b=-0.072,P<0.05;b=0.092,P<0.05);③Widaman’s的验证和竞争分析发现,亲子冲突与环境敏感性对抑郁情绪和外化行为的交互作用分别支持差异敏感和素质-压力模型(BIC=2170.98、2162.6)。结论高环境敏感性的青少年更易受与父母更多冲突关系的负面影响,也更易从低水平冲突关系中获益,环境敏感性可能是一种易感因素而非脆弱因素。
基金Department of Edication of Gansu Province(No.2018D-08)。
文摘It is important to verify the safety of electric vehicle(EV)wireless power transmission for child passengers by studying the electromagnetic exposure difference between the child passengers and the adult passengers.The dielectric parameters of the child passengers’body were calculated under the operating frequency of 85 kHz.Using the finite element simulation software COMSOL Multiphysics,a model was established for the child passengers and adult passengers when the EVs charged by the wireless charging coil.This paper analyzed the distribution of magnetic induction intensity and induced electric field intensity generated on the body and head when the child passengers and adult passengers sat in four different positions.Additionally,the difference between the brain electromagnetic exposure values of children and adults was analyzed and compared with the limits set.The results showed that the electromagnetic exposure was the largest when the passenger sat in the co-driver position.The electromagnetic exposure level of child was slightly higher than that of adult at the same position,and the magnetic induction intensity and induced electric field intensity of both were much smaller than the public electromagnetic exposure recommendation values.
