检索结果-南通市图书馆

Associations of prenatal exposure to bisphenols with BMI growth trajectories in offspring within the first two years:evidence from a birth cohort study in China

在线全文

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2024年第7期20卷 701-711页

作者： Chao Xiong Kai Chen Lu-Li Xu Yi-Ming Zhang Hua Liu Meng-Lan guo zhi-guo xia Yu-Ji Wang xiao-Feng Mu xiao-Xuan Fan Jing-Quan Chen Yu-Ru Liu Yuan-Yuan Li Wei xia You-Jie Wang Ai-Fen Zhou Wuhan Children’s Hospital(Wuhan Maternal and Child Healthcare Hospital) Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430016China Key Laboratory of Environment and Health Ministry of Education and Ministry of Environmental Protectionand State Key Laboratory of Environmental HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Maternal and Child Health School of Public HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China

Background Prenatal bisphenol exposure has been reported to be associated with lower birth weight and obesity-related indicators in early *** findings warrant an investigation of the relationship between prenatal bisphenol exposure and the dynamic growth of *** study aimed to evaluate the relationship of maternal bisphenol concentration in urine with the body mass index(BMI)growth trajectory of children aged up to two years and to identify the critical exposure *** A total of 826 mother–offspring pairs were recruited from Wuhan Children’s Hospital between November 2013 and March *** urine samples collected during the first,second,and third trimesters were analyzed for bisphenol A(BPA),bisphenol S,and bisphenol F(BPF)*** of length and weight were taken at 0,1,3,6,8,12,18,and 24 ***'s BMI was standardized using the World Health Organization reference,and group-based trajectory modeling was used to identify BMI growth *** associations between prenatal bisphenol exposure and BMI growth trajectory patterns were assessed using multinomial logistic regression *** The BMI growth trajectories of the 826 children were categorized into four patterns:low-stable(n=134,16.2%),low-increasing(n=142,17.2%),moderate-stable(n=350,42.4%),and moderate-increasing(n=200,24.2%).After adjusting for potential confounders,we observed that prenatal exposure to BPA during the second trimester[odds ratio(OR)=2.20,95%confidence interval(CI)=1.09–4.43]and BPF during the third trimester(OR=3.28,95%CI=1.55–6.95)at the highest quartile concentration were associated with an increased likelihood of the low-increasing BMI ***,in the subgroup analysis by infant sex,the positive association between the highest quartile of prenatal average urinary BPF concentration during the whole pregnancy and the low-increasing BMI trajectory was found only in girls(OR=2.82,95%CI=1.04–7.68).Conclus

关键词： Birth cohort study Bisphenol A Bisphenol S Bisphenol F Body mass index trajectory Prenatal exposure

Factors Influencing Second Language Learners' Goal Setting

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

海外英语 2019年第3期 20-22页

作者：郭志霞天津外国语大学

Goalsetting, as one of the most important meta-cognitive strategies in learning, has gained considerable attention (Bruce,2011). A number of studies have focused on the positive effect of goal setting in sustaining motivation, promoting self-efficacy andfostering autonomy. However, few research seems to examine the factors that influence second language learners’goal setting. Thecurrent study aims to address this gap by investigating the goal setting processes of two postgraduate learners at Tianjin ForeignStudies Universities. Interviews were triangulated to obtain a deep understanding. Findings revealed that motivation, self-efficacy,learning strategy, time management can all have influences on the language learners’goal-setting.

关键词： goal-setting influencing factors motivation second language learner

基于G.709建议的子速率透明复用器的设计

在线全文

学校读者我要写书评

暂无评论

光通信研究 2005年第4期 18-20页

作者：郭志霞烽火通信科技股份有限公司湖北武汉430074

文章首先介绍了ITU-TG.709建议的数字包封的复用映射结构,然后详细描述了基于该建议的子速率透明复用器的设计框图,并详细论述了其设计优点,最后给出了其在系统传输时的误码率与光信噪比的关系曲线,验证了其前向纠错功能。

关键词：数字包封透明复用器前向纠错

在线全文

学校读者我要写书评

暂无评论

医院感染现患率调查与分析

中华医院感染学杂志 2014年第24期24卷 6110-6111,6116页

作者：赵霞郭志华张小琴郑州大学附属肿瘤医院医院感染管理办公室河南郑州450008

目的了解2010-2012年医院感染发生及动态变化、医院感染发生的易感因素、病原学及抗菌药物使用状况,为进一步制定有效的预防控制措施提供科学依据。方法采用横断面调查方法,以医院感染管理专职人员、科室感染兼职监控人员组成小组,采用... 详细信息

目的了解2010-2012年医院感染发生及动态变化、医院感染发生的易感因素、病原学及抗菌药物使用状况,为进一步制定有效的预防控制措施提供科学依据。方法采用横断面调查方法,以医院感染管理专职人员、科室感染兼职监控人员组成小组,采用床旁调查和病例调查相结合的方法,对2010年5月17日、2011年7月4日及2012年7月2日所有住院6 597例患者进行调查,采用SPSS17.0进行统计分析。结果 3次调查应查住院患者6 597例,实查6537例,实查率99.09%;医院感染254例、274例次,医院感染现患率3.85%、例次感染率4.15%,感染部位以下呼吸道为主占31.02%;日抗菌药物使用率平均为16.41%,呈逐年下降趋势。结论通过医院感染现患率调查,全面了解医院感染的现状,针对监测存在的问题,制定干预措施,降低医院感染发病率。

关键词：现患率医院感染结果分析

荒漠灌丛和土壤动物关系及对降水变化的响应研究进展

在线全文

学校读者我要写书评

暂无评论

草业学报 2022年第10期31卷 206-216页

作者：郭志霞刘任涛赵文智宁夏大学农学院宁夏银川750021 宁夏大学生态环境学院宁夏银川750021 西北土地退化与生态恢复国家重点实验室培育基地宁夏银川750021 中国科学院西北生态环境资源研究院甘肃兰州730000

在荒漠生态系统中,以人工灌丛进行植被恢复与重建是土地荒漠化防治最有效、最经济、最持久、最稳定的措施之一。土壤动物是荒漠生态系统土壤生物的重要组分,在物质循环、养分流动和信息传递中扮演着重要角色。荒漠灌丛和土壤动物互相作... 详细信息

在荒漠生态系统中,以人工灌丛进行植被恢复与重建是土地荒漠化防治最有效、最经济、最持久、最稳定的措施之一。土壤动物是荒漠生态系统土壤生物的重要组分,在物质循环、养分流动和信息传递中扮演着重要角色。荒漠灌丛和土壤动物互相作用能够促进灌丛“肥岛”演变,有利于灌丛生态功能发展和退化生态系统有效恢复。降水变化条件下,基于“荒漠灌丛和土壤动物关系”这一核心问题,在总结荒漠灌丛分布特征、荒漠灌丛和土壤动物分布关系的基础上,分析了荒漠灌丛土壤动物分布对降水变化的响应规律及内在机制。在未来全球变化条件下,从荒漠灌丛土壤动物对地上的反馈效应、研究方法与先进技术应用及荒漠灌丛土壤动物多样性与生态系统服务功能方面,探索了荒漠生态系统中荒漠灌丛土壤动物研究中应重点关注的几个科学问题,为荒漠生态系统生物多样性保护、植被建设及响应气候变化管理提供了科学依据。

关键词：荒漠灌丛多样性保护土壤动物降水变化

Relationship between parenting stress and behavioral and emotional problems in preschool children: A mediation effect analysis

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Psychiatry 2025年第1期15卷 128-136页

作者： zhi-Wei Fu Yue-Jing Li Ran Yu Rui-Qing guo Li-xia Gao Sheng-xia Zhao Department of Children's Health Shijiazhuang Maternity and Child Healthcare HospitalShijiazhuang 050000Hebei ProvinceChina

BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age *** To investigate the current status of family rearing,parental stress,and behavioral and emotional problems of preschool children and to analyze the mediating effect of the current status of family rearing on parental stress and behavioral/emo-tional *** We use convenience sampling to select 258 preschool children in the physical examination center of our hospital from October 2021 to September *** children and their parents were evaluated using a questionnaire ***'s correlation was used to analyze the correlation between child behavioral and emotional problems and parental stress and family rearing,and the structural equation model was constructed to test the mediating *** The score for behavioral/emotional problems of 258 preschool children was(27.54±3.63),the score for parental stress was(87.64±11.34),and the score for parental family rearing was(31.54±5.24).There was a positive correlation between the behavioral and emotional problems of the children and the“hostile/mandatory”parenting style;meanwhile,showed a negative correlation with the“support/participation”parenting style(all P<0.05).The intermediary effect value between the family upbringing of parents in parental stress and children's behavior problems was 29.89%.CONCLUSION Parental family upbringing has a mediating effect between parental stress and behavioral and emotional problems of *** paying attention to the behavioral and emotional problems of preschool-age children,clinical medical staff should provide correct and reasonable parenting advice to their parents to promote the mental health of preschool-age children.

关键词： Preschool children Parenting stress Children's behavioral and emotional problems Family rearing Mediating effect

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

新农村社区可持续性规划对策研究

山西建筑 2010年第15期36卷 3-4页

作者：郭志霞天津城市建设学院建筑设计研究院

通过分析目前农村现状,分析了新农村社区可持续性规划设计的方法,提出了在新农村建设中大力推广以可持续发展为核心内涵的生态规划设计理念,是新农村规划与建设对建筑师提出的新课题,也是新农村建设的必由之路。

关键词：新农村社区可持续发展规划生态

在线全文

学校读者我要写书评

暂无评论

新农村社区可持续发展相关问题探析

山西建筑 2010年第14期36卷 7-8页

作者：郭志霞天津城市建设学院建筑设计研究院

从新农村社区建设规划的特点出发,阐述了目前新农村规划设计的现状与矛盾,在此基础上探讨了新农村可持续性规划设计的几点对策,从而真正实现新农村社区的可持续发展。

关键词：新农村社区规划设计生态环境可持续发展

低温级以CO_2为工质的复叠式制冷循环热力学分析

在线全文

学校读者我要写书评

暂无评论

天津大学学报（自然科学与工程技术版） 2004年第3期37卷 245-248页

作者：卢苇马一太王志国李敏霞天津大学热能研究所天津300072

传统的复叠式制冷循环通常采用的几种工质破坏臭氧层且温室效应较强,为此,对低温级以CO2为工质的复叠式制冷系统进行热力学理论分析,计算了不同蒸发温度下最佳COP及其对应的低温循环冷凝温度和流量比.通过对几种工质组合(R22 R12,R134a ... 详细信息

传统的复叠式制冷循环通常采用的几种工质破坏臭氧层且温室效应较强,为此,对低温级以CO2为工质的复叠式制冷系统进行热力学理论分析,计算了不同蒸发温度下最佳COP及其对应的低温循环冷凝温度和流量比.通过对几种工质组合(R22 R12,R134a CO2,NH3 CO2,R290 CO2,CO2 CO2,CO2 CO2加膨胀机)的比较,可发现自然工质的COP与传统工质的相当.综合考虑环境因素及设备的选择,自然工质系统值得推荐.

关键词：自然工质复叠式制冷系统热力学分析二氧化碳低温级