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Risk Factors for Geo-Helminthiasis in Children Aged 6 - 36 Months in a Rural Health District in Cameroon
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作者 Isabelle Mekone Nkwele Monono Naiza +6 位作者 Gervais Talla Kamga Hugues Nana Djeunga Jeannette Epée Ngoue Patricia Epée Eboumbou Suzanne Ngo Um Sap Evelyn Mah Mungeh Joseph Kamgno 《Open Journal of Pediatrics》 2024年第2期391-400,共10页
Introduction and Objectives: Soil-Transmitted-Helminthiasis (STH) is a public health problem in Cameroon. The control strategies currently in place, particularly chemoprevention, has shortcomings linked to the target ... Introduction and Objectives: Soil-Transmitted-Helminthiasis (STH) is a public health problem in Cameroon. The control strategies currently in place, particularly chemoprevention, has shortcomings linked to the target population, which are school-age children. The objective was to determine the prevalence and the risk factors associated with geo-helminthiasis in children aged 0 to 3 years in a rural health district. Method: From December 2020 to May 2021, a descriptive and analytical cross-sectional study of 376 children between 6 and 36 months was carried out in the Akonolinga health district. This was a cluster sampling in 4 health areas. Stool samples were collected and analysed using the mini-FLOTAC method. The results expressed as the number of eggs per gram of stool. A questionnaire on socio-demographic and lifestyle data was administered to the parents. The Chi-squared test was used to measure the association between geo-helminth infection and the data collected. A multivariate analysis using logistic regression was performed (p 0.05). Results: The prevalence of STH was 19.4% (Ascaris lumbricoides: 16% and Trichuris trichiura: 8%). Risk factors were: consumption of contaminated water (AOR = 1.93 [1.03 - 3.6];p = 0.040), early contact of the child with the ground (before age of 4 months) (AOR = 4.9 [2.1 - 11.37];p .001), habit of walking barefoot (AOR = 2.91 [1.1 - 7.97];p = 0.038), and living in a habitat with unpaved ground (AOR = 7.4 [1.55 - 35.7];p = 0.012). Conclusion: The prevalence of STHs in infants was high. Preventive chemotherapy should be extended to this age-group, and other measures intensified. 展开更多
关键词 Akonolinga Soil-Transmitted-Helminths Children aged 0 - 3 Years Risk Factors
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Factors Associated with Acute Respiratory Infections in Children Aged 0 - 5 Years in the Yénawa District of Cotonou (Benin) in 2023
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作者 Virginie Mongbo Luc Béhanzin +2 位作者 Lamidhi Salami Nicolas Hamondji Amegan Edgard-Marius Ouendo 《Open Journal of Epidemiology》 2024年第2期331-342,共12页
Introduction: Acute respiratory infections remain one of the main causes of mortality in children aged 0 to 5. This work aimed to study the associated factors with the occurrence of acute respiratory infections in chi... Introduction: Acute respiratory infections remain one of the main causes of mortality in children aged 0 to 5. This work aimed to study the associated factors with the occurrence of acute respiratory infections in children 0 to 5 years old in Yénawa, Cotonou in 2023. Subjects and Method: It was an analytical cross-sectional study of children aged 0 - 5 years and their mothers in Yénawa, selected by four-degree random sampling. The sampling size, calculated using the Schwartz formula, was 126 children and 126 mothers. The dependent variable was the occurrence of acute respiratory infections. The independent variables were classified into four groups: socio-demographic and economic characteristics, behavioral factors, child-related factors, and environmental factors. Data collected by observation and questionnaire survey were analyzed using STATA version 15 software. Associated factors were investigated by bivariate analysis and multiple logistic regression, at the 5% significance level. Results: A total of 126 children aged 0 - 5 years and 126 mothers were surveyed, aged 23.5 (11 - 36) months and 30 (18 - 48) years respectively. The prevalence of acute respiratory infections was 74.60% (CI95% = 66.89 to 82.30). The associated factors were the mother’s age between 18 and 28 (OR = 10.77;CI95% = 1.89 to 61.27;p = 0.007), the use of charcoal/wood for cooking (OR = 7.36;IC = 1.99 to 27.10;p = 0.003)), children's poor personal hygiene (OR = 8.87;IC = 2.92 to 26.97;p 0.001)), and cohabitation with domestic animals (OR = 7.27;IC = 1.67 to 31.71;p = 0.015). Conclusion: Communicating with mothers about the factors identified will help reduce the prevalence of acute respiratory infections in children aged 0 to 5. 展开更多
关键词 Acute Respiratory Infections Children aged 0 - 5 Associated Factors Yénawa BENIN
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热加工食品中晚期糖基化终末产物和5-羟甲基糠醛的形成、检测与控制
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作者 陆胜民 黄子馨 +2 位作者 李小琼 郑美瑜 韩永斌 《浙江农业学报》 CSCD 北大核心 2024年第6期1458-1468,共11页
食品加工过程中的美拉德反应有助于形成一些热诱导毒性产物,包括晚期糖基化终末产物(advanced glycation end products,AGEs)和5-羟甲基糠醛(5-hydroxymethylfurfural,5-HMF)。食源性AGEs在体内的积累和循环与糖尿病并发症的发生有关,... 食品加工过程中的美拉德反应有助于形成一些热诱导毒性产物,包括晚期糖基化终末产物(advanced glycation end products,AGEs)和5-羟甲基糠醛(5-hydroxymethylfurfural,5-HMF)。食源性AGEs在体内的积累和循环与糖尿病并发症的发生有关,同时可能诱发氧化应激、炎症和动脉粥样硬化。5-HMF的代谢物5-磺基氧甲基糠醛(5-sulfooxymethylfurfural,5-SMF)有潜在基因毒性和致癌性。如何控制热加工食品中这些危害物的形成已成为食品行业的关注焦点。本文从美拉德反应和焦糖化反应两条途径探究了AGEs和5-HMF的形成机理,并对近5年二者的检测方法进行了综述,阐述了各类方法的优缺点,以期为建立二者的通用检测方法奠定基础。在此基础上,从削减前体物质的供给、阻断中间体的转化,以及去除已经生成的AGEs和5-HMF这3个方面着手,综述了近年来相应所采用的抑制策略,以期为AGEs和5-HMF在食品中的控制及热加工食品质量与安全管理提供理论依据。 展开更多
关键词 晚期糖基化终末产物(ages) 5-羟甲基糠醛(5-HMF) 形成途径 检测方法 控制措施
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Uptake of Two Doses of HPV Vaccines in Nakuru County, Kenya: A Case of Rongai and Nakuru West Sub-Counties
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作者 Tabitha Chepkemoi Phylis Jerotich 《Journal of Biosciences and Medicines》 CAS 2023年第1期1-7,共7页
Background: HPV vaccines were introduced globally as one of the most effective strategies to prevent cervical cancer. HPV vaccines were rolled out in Kenya in 2019 targeting girls aged 10 - 14 years, but the uptake ha... Background: HPV vaccines were introduced globally as one of the most effective strategies to prevent cervical cancer. HPV vaccines were rolled out in Kenya in 2019 targeting girls aged 10 - 14 years, but the uptake has not been satisfactory. The Purpose of the Study: The aim of the study was to assess the level of HPV uptake among girls aged 10 - 14 years in Rongai and Nakuru West Sub-Counties in Nakuru County. Method: This was a cross-sectional study where data on HPV uptake was retrieved from all the public health facilities located in Rongai and Nakuru West Sub-Counties, Nakuru County, entered into Microsoft Excel then transferred to SPSS version 26 for analysis of HPV vaccine uptake since the year 2019 to June 2022. Data Analysis: Descriptive statistics were used where tables and graphs were generated to represent the percentages and trends of HPV vaccine uptake. Results: The average percentage of HPV uptake in Nakuru West Sub-County since the rollout of vaccination was 17% while that of Rongai Sub-County was 15%. In 2019, HPV 1 uptake was generally low for both Sub-Counties, the results show no HPV 2 vaccines were administered during that year. In 2020, Nakuru West reported an increase in HPV 1 uptake, while Rongai reported a drop in HPV 1 uptake. Both Sub-Counties reported an increase in HPV 2 in 2020 as compared to the previous year. The highest HPV 1 & 2 uptakes were reported in 2021 in both Sub-Counties. The uptake of both HPV 1 & 2 kept increasing subsequently. Conclusion: The overall uptake of HPV vaccines for Doses 1 and 2, in both Rongai and Nakuru West Sub-Counties, is low. However, there has been a consistent increase in uptake of the two doses in the two Sub-Counties since 2019. Therefore, raising public awareness of the importance of HPV vaccination could improve uptake. 展开更多
关键词 Cervical Cancer Huma Papilloma Virus HPV Vaccines HPV Vaccines Uptake Girls aged 10 - 14 Years
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云南白马寨铜镍硫化物矿床Re-Os同位素定年及其地质意义 被引量:36
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作者 石贵勇 孙晓明 +3 位作者 王生伟 熊德信 屈文俊 杜安道 《岩石学报》 SCIE EI CAS CSCD 北大核心 2006年第10期2451-2456,共6页
采用 Carius 管溶矿、蒸馏法分离 Os、丙酮萃取 Re 和电感耦合等离子体质谱(ICP-MS)联合测定法,对云南白马寨岩浆岩型铜镍硫化物矿硫化物矿石进行了 Re-Os 同位素精确定年,得出其等时线年龄为259±18Ma(MSWD=0.028),^(187)Os/^(188)... 采用 Carius 管溶矿、蒸馏法分离 Os、丙酮萃取 Re 和电感耦合等离子体质谱(ICP-MS)联合测定法,对云南白马寨岩浆岩型铜镍硫化物矿硫化物矿石进行了 Re-Os 同位素精确定年,得出其等时线年龄为259±18Ma(MSWD=0.028),^(187)Os/^(188)Os 初始值为0 455±0 024,相当于γ(Os(t)为+263。硫化物矿石 Re/Os 比值为11.56~21.04。研究结果显示,白马寨铜镍硫化物矿床成矿时代与峨眉大火山岩省主喷发期基本同时,其物质来源属壳-幔混合来源,壳源 Os 的加入量约为30%左右。 展开更多
关键词 -镍硫化物 Re—os同位素定年 ICP—MS 地质意义 白马寨
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东南沿海晚中生代镁铁质岩的Re-Os同位素组成 被引量:9
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作者 周金城 蒋少涌 +2 位作者 王孝磊 杨竞红 张孟群 《岩石学报》 SCIE EI CAS CSCD 北大核心 2006年第2期407-413,共7页
从浙东、闽东南的早白垩世“双峰式火山岩”和“复合岩体”中选择了有代表性的玄武岩和角闪辉长岩,分离出钛-磁铁矿,进行Re-Os同位素分析。角闪辉长岩的γo_s(130Ma)为-83.7~-47.1,其(^(187)Os/^(188)Os)_i过低,为0.0667和0.0205... 从浙东、闽东南的早白垩世“双峰式火山岩”和“复合岩体”中选择了有代表性的玄武岩和角闪辉长岩,分离出钛-磁铁矿,进行Re-Os同位素分析。角闪辉长岩的γo_s(130Ma)为-83.7~-47.1,其(^(187)Os/^(188)Os)_i过低,为0.0667和0.0205这低得不合理的(^(187)Os/^(188)Os)_i表明成岩之后Re-Os体系可能受到扰动,某些地质过程导致外加Re的进入,使岩石的^(187)Re/^(188)Os比值偏高、(^(187)Os/^(188)Os)_i及γo_s(t)值偏低。玄武岩的γo_s(130Ma)=21.4~267.8,其(^(187)Os/^(188)Os)_i为0.1531~0.4639。Re-Os、Sm-Nd同位素及微量元素地球化学研究表明,早白垩世玄武岩浆不是来自富集地慢,而是来自亏损的地幔源区,在其演化过程中经受了地壳岩石和熔体的混染。晚中生代时期,东南沿海“大陆弧”下的地幔可能不是富集的岩石圈地幔,具有亏损特性,因而是软流圈地幔。 展开更多
关键词 Re—os同位素 玄武岩-角闪辉长岩 地幔 早白垩世 东南沿海
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黑龙江省翠宏山钨钼多金属矿床辉钼矿Re-Os同位素定年及其地质意义 被引量:24
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作者 郝宇杰 任云生 +4 位作者 赵华雷 邹欣桐 陈聪 侯召硕 屈文俊 《吉林大学学报(地球科学版)》 EI CAS CSCD 北大核心 2013年第6期1840-1850,共11页
翠宏山钨钼多金属矿床是小兴安岭-张广才岭成矿带内一个重要的矽卡岩型矿床,钨、钼、锌均达大型规模。为确定该矿床的形成时代,对取自岩体内接触带钨钼矿体的7件辉钼矿样品进行了Re-Os同位素测年研究。结果表明:辉钼矿中Re质量分数为(0.... 翠宏山钨钼多金属矿床是小兴安岭-张广才岭成矿带内一个重要的矽卡岩型矿床,钨、钼、锌均达大型规模。为确定该矿床的形成时代,对取自岩体内接触带钨钼矿体的7件辉钼矿样品进行了Re-Os同位素测年研究。结果表明:辉钼矿中Re质量分数为(0.376 9~0.973 7)×10-6,Os质量分数为(1.272~3.234)×10-9;获得的模式年龄为(199.0±3.1)^(203.9±3.8)Ma,加权平均年龄为(201.6±1.4)Ma(MSWD=0.80),等时线年龄为(198.9±3.7)Ma(MSWD=0.83)。结合区域成矿作用分析认为:翠宏山多金属矿床的形成时代为早侏罗世,与成矿带内的霍吉河和鹿鸣等斑岩型(细网脉型)钼矿床同属燕山早期大规模构造-岩浆-成矿事件的产物。根据本次辉钼矿Re-Os定年结果,结合前人在矿区内所测多个花岗岩体的锆石U-Pb年龄认为:与翠宏山多金属矿床具成因联系的岩体应为二长花岗岩、碱长花岗岩,成岩成矿作用与古太平洋板块俯冲有关。辉钼矿中Re质量分数、成矿岩体的物质源区综合研究表明,翠宏山多金属矿床的成岩成矿物质具有壳幔混源特征。 展开更多
关键词 Re—os同位素定年 辉钼矿 金属矿床 小兴安岭-张广才岭成矿带 矽卡岩型矿床
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PEEK-SPEEK-HA复合材料与U2OS细胞相容性研究 被引量:3
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作者 倪卓 黄苇殷 +2 位作者 王应 吴耿锋 潘田光 《深圳大学学报(理工版)》 EI CAS CSCD 北大核心 2016年第1期1-9,共9页
体外培养U2OS细胞,通过噻唑蓝(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltet razolium bromide,MTT)法研究新型聚醚醚酮-羟基磷灰石(polyetheretherketone-hydroxyapatite,PEEK-HA)生物复合材料对细胞增殖的影响.研究发现,聚醚... 体外培养U2OS细胞,通过噻唑蓝(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltet razolium bromide,MTT)法研究新型聚醚醚酮-羟基磷灰石(polyetheretherketone-hydroxyapatite,PEEK-HA)生物复合材料对细胞增殖的影响.研究发现,聚醚醚酮-磺化聚醚醚酮-羟基磷灰石(polyetheretherketone-sulfnated polyetheretherketone-hydroxyapatite,PEEK-SPEEK-HA)复合材料的细胞增殖作用较PEEK-HA复合材料强,且随着HA含量的增加细胞增殖作用增强,材料浸提液质量浓度为4-8 mg/m L时对细胞有较好的增殖促进作用.复合材料毒性级别为Ⅰ,对细胞无毒性.测定黏附率研究该材料对U2OS细胞的黏附特性,PEEKSPEEK-HA复合材料随着HA含量的增大,细胞黏附率增加,高于PEEK-HA复合材料组,表明加入HA和SPEEK能改善复合材料的黏附性能.采用流式细胞术研究材料对细胞凋亡的影响,发现加入SPEEK的PEEK-HA复合材料能抑制细胞发生早期凋亡,从而降低凋亡率.激光共聚焦和流式细胞仪检测该材料对细胞活性氧的影响发现,SPEEK引入复合材料能够降低细胞活性氧水平,降低细胞毒性.扫描电镜实验表明,U2OS细胞能够在PEEK-SPEEK-HA复合材料表面黏附、伸展和生长. 展开更多
关键词 聚醚醚酮-羟基磷灰石复合材料 U2os骨瘤细胞 细胞增殖 细胞形态 细胞黏附 细胞凋亡 活性氧
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对流-扩散方程若干AGE格式及其稳定性 被引量:2
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作者 曾文平 《华侨大学学报(自然科学版)》 CAS 1999年第3期230-236,共7页
以求解对流-扩散方程的中心差分格式、显式逆风格式、Samarski格式和修正Dennis格式为基础,构造了若干新的交替分组显式格式,并证明它们是无条件稳定的.数值结果表明,除了基于中心差分格式的AGE格式与ADE格式... 以求解对流-扩散方程的中心差分格式、显式逆风格式、Samarski格式和修正Dennis格式为基础,构造了若干新的交替分组显式格式,并证明它们是无条件稳定的.数值结果表明,除了基于中心差分格式的AGE格式与ADE格式外,其他的各种AGE格式与相应的ADE格式的精度相当. 展开更多
关键词 对流-扩散方程 显式格式 稳定性 age格式
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μC/OSⅡ-在电能质量监控器人机交互中的应用 被引量:2
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作者 佟为明 贾彦峰 《低压电器》 北大核心 2008年第13期49-52,共4页
根据所设计的电能质量监控器的功能及硬件平台,基于对μC/OSⅡ-实时内核的分析,针对电能质量监控器人机交互功能的具体要求,通过对实时内核的裁减及任务优先级的分配,完成了键盘中断服务程序、各类显示任务的软件开发,最终实现了界面友... 根据所设计的电能质量监控器的功能及硬件平台,基于对μC/OSⅡ-实时内核的分析,针对电能质量监控器人机交互功能的具体要求,通过对实时内核的裁减及任务优先级的分配,完成了键盘中断服务程序、各类显示任务的软件开发,最终实现了界面友好、功能强大的人机交互功能。 展开更多
关键词 μC/os-实时内核 电能质量监控器 人机交互
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siRNA沉默ERK-1基因对骨肉瘤细胞U-2OS基质金属蛋白酶-9表达的影响 被引量:1
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作者 胡俊 李卫 +2 位作者 袁忠 陶阳 沈云峰 《当代医学》 2019年第4期4-7,共4页
目的研究ERK-1基因对骨肉瘤细胞U-2OS基质金属蛋白酶-9(MMP-9)的表达及细胞迁移侵袭的影响,探讨ERK-1基因在骨肉瘤细胞侵袭过程中的作用机制。方法通过siRNA技术沉默骨肉瘤细胞U-2OS中ERK-1基因表达,采用RT-PCR和Western blot分别检测... 目的研究ERK-1基因对骨肉瘤细胞U-2OS基质金属蛋白酶-9(MMP-9)的表达及细胞迁移侵袭的影响,探讨ERK-1基因在骨肉瘤细胞侵袭过程中的作用机制。方法通过siRNA技术沉默骨肉瘤细胞U-2OS中ERK-1基因表达,采用RT-PCR和Western blot分别检测空白对照组、阴性对照组、siRNA沉默组中ERK-1、MMP-9的mRNA水平和蛋白水平,Transwell细胞迁移和侵袭能力实验,验证细胞迁移和侵袭能力。结果骨肉瘤细胞U-2OS转染ERK-1 siRNA后,ERK-1、MMP-9在mRNA和蛋白水平的表达受到明显抑制,细胞迁移和侵袭能力显著下降。结论 ERK-1可通过诱导细胞发生MMP-9的表达来促进骨肉瘤细胞U-2OS侵袭和转移。 展开更多
关键词 SIRNA技术 ERK-1基因 骨肉瘤细胞U-2os 基质金属蛋白酶-9
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基于视网膜Müller细胞的地黄调节AGEs干预下HIF-1α表达的谱效关系研究 被引量:6
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作者 刘思妍 王芯 +3 位作者 潘奕璇 李艳玲 张梅 谢学军 《中成药》 CAS CSCD 北大核心 2020年第1期217-221,共5页
目的建立不同来源地黄的高效液相色谱(HPLC)指纹图谱并研究其与糖基化终末产物(AGEs)干预下视网膜Müller细胞中低氧诱导因子-1α(HIF-1α)表达之间的谱效关系,初步阐明地黄防治糖尿病性视网膜病变(DR)的药效物质。方法采用HPLC法建... 目的建立不同来源地黄的高效液相色谱(HPLC)指纹图谱并研究其与糖基化终末产物(AGEs)干预下视网膜Müller细胞中低氧诱导因子-1α(HIF-1α)表达之间的谱效关系,初步阐明地黄防治糖尿病性视网膜病变(DR)的药效物质。方法采用HPLC法建立10批不同来源地黄指纹图谱;采用ELISA法测定地黄对AGEs干预下视网膜Müller细胞中HIF-1α表达的影响;采用偏最小二乘法分析特征峰峰面积与药效值之间的谱效关系。结果 10批样品HPLC指纹图谱共标定了17个特征共有峰,其中4、14、15号峰分别为梓醇、肉苁蓉苷A、毛蕊花糖苷。ELISA结果显示10批样品对AGEs干预下视网膜Müller细胞中HIF-1α的表达均有不同程度的抑制作用。偏最小二乘法分析结果显示,肉苁蓉苷A、毛蕊花糖苷及4个尚未确定结构的成分(峰13、5、16、17)可能是地黄防治DR的药效物质。结论谱效关系为初步阐明地黄防治DR药效物质提供了一个有效途径。 展开更多
关键词 地黄 视网膜MÜLLER细胞 糖基化终末产物(ages) 谱效关系 糖尿病性视网膜病变(DR) 低氧诱导因子-1α(HIF-1α) 偏最小二乘法
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基于ROS和μC/OS-Ⅱ的六足仿生探测机器人 被引量:1
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作者 陈铂垒 刘科 +2 位作者 叶嘉辉 石文龙 汪红 《单片机与嵌入式系统应用》 2019年第6期45-48,53,共5页
利用树莓派、STM32F103、MSP430F149设计出了一种基于ROS机器人操作系统和μC/OS -Ⅱ嵌入式系统的六足仿生探测机器人。文中主要介绍了六足仿生探测机器人系统的整体设计思路、硬件的组成、软件的设计以及算法实现等内容。经测试,本文... 利用树莓派、STM32F103、MSP430F149设计出了一种基于ROS机器人操作系统和μC/OS -Ⅱ嵌入式系统的六足仿生探测机器人。文中主要介绍了六足仿生探测机器人系统的整体设计思路、硬件的组成、软件的设计以及算法实现等内容。经测试,本文设计的六足仿生探测机器人灵活性好、抗干扰能力强、机动性强、探测功能及时稳定,可以完成复杂地形下的各类作业和探测任务。 展开更多
关键词 六足仿生探测机器人 STM32F103 MSP430F149 Ros ΜC/os -
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Geology, Geochemistry, and Geochronology of the Fenghuangshan Skarn-type Copper Deposit in the Tongling Ore Cluster, Anhui Province, East China 被引量:3
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作者 QU Hongying PEI Rongfu +4 位作者 FEI Hongcai LI Jinwen WANG Yonglei WANG Haolin YAO Lei 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2012年第3期700-718,共19页
The Fenghuangshan skarn-type Cu deposit, Tongling Ore Cluster, Anhui Province, is an important component in the Middle-Lower Yangtze River ore-forming belt. To better understand magmatism and its relationship to miner... The Fenghuangshan skarn-type Cu deposit, Tongling Ore Cluster, Anhui Province, is an important component in the Middle-Lower Yangtze River ore-forming belt. To better understand magmatism and its relationship to mineralization, we investigated geochemical features, ore-forming fluids, and geochronology of the Xinwuli intrusion and the related Fenghuangshan Cu deposit. Lithogeochemical characteristics show that the Xinwuli quartz monzodiorite is formed by mixing magma derived from upper mantle alkaline basalt that has been contaminated by crust materials. C, H and O isotopes indicate that ore-forming fluids mainly come from the magma, with minor amounts of meteoric fluids involved at the late stage. S and Pb isotopic components indicate that ore-forming materials are derived from the mantle. Molybdenite Re-Os isotopic dating yields Re-Os model ages ranging from 139.1±2.4 Ma to 142.0±2.2 Ma, with an isochronal age of 141.1±1.4 Ma, which is consistent with sensitive, high-resolution ion microprobe (SHRIMP) zircon U-Pb ages of quartz monzodiorite and granodiorite in the mining area. Dating analysis yields ages from 136.0±2.0 Ma to 143.0±2.4 Ma for the quartz monzodiorite (a weighted average of 139.4±1.2 Ma) and ages from 136.7±2.0 Ma to 145.3±2.4 Ma for granodiorite (a weighted average of 141.0±1.1 Ma). 展开更多
关键词 Ore-forming fluids isotopes molybdenite Re–os ages SHRIMP zircon U–Pb ages Fenghuangshan Cu deposit Anhui Province
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Prevalence and Years Lived with Disability for Dental Caries among Children Aged 0-14 Years in China, 1990-2016 被引量:5
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作者 liu wen zhao su ling yu +3 位作者 xie xu dong xiang xue rong huang jiao ji ping 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2018年第5期376-381,共6页
The estimate of dental caries among Chinese children at the microscale level using standard methodology remains unclear. In this study, we assessed and analyzed the disease burden of childhood dental caries in China b... The estimate of dental caries among Chinese children at the microscale level using standard methodology remains unclear. In this study, we assessed and analyzed the disease burden of childhood dental caries in China by extracting data from the Global Burden of Disease, Injuries, and Risk Factors Study 2016 (GBD 2016). In 2016, the number of cases, prevalence, years lived with disability (YLD), and age-standardized YLD rate of dental caries was 93.0 million, 43.0%, 32,200 person years, and 14.8 per 100,000, respectively. Across 33 provincial units, the disease burden was highest in Hubei (YLD rate 28.6 per 100,000), lowest in Macao (9.1 per 100,000), while geographical clustering was not observed. Compared with 1990, the prevalence in 2016 decreased from 46.8% to 43.0%, and the YLD rate decreased from 16.5 per 100,000 to 14.8 per 100,000. Given the slight decrease in dental caries burden, the prevalence and disease burden remained high among Chinese children. Strategies for addressing the spatial inequity of childhood dental caries require geographical targeting. 展开更多
关键词 In Prevalence and Years Lived with Disability for Dental Caries among Children aged 0-14 Years in China 1990-2016
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Factors Influencing Preventive Behaviors of Mothers for Diarrhea in Children Aged 1-5 Years in Buol District, Indonesia 被引量:1
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作者 Helmi Rumbo Susheewa Wichaikull Boosaba Sanguanprasit 《Journal of Sociology Study》 2016年第12期745-753,共9页
This study aims to determine the factors related with mothers' behaviors in preventing diarrhea in children aged 1-5 years inBuol District. This was a cross-sectional survey design with health belief model as the con... This study aims to determine the factors related with mothers' behaviors in preventing diarrhea in children aged 1-5 years inBuol District. This was a cross-sectional survey design with health belief model as the conceptual framework. A total of 300mothers were selected by using purposive sampling method based on criteria. Mothers were interviewed by using astructured questionnaire during October to November 2015. A chi-square (X^2) test was used to determine a significantassociation between independent variables and dependent variable. The finding showed that 68.3% of mothers hadgood behaviors in preventing diarrhea. The factors significantly related to mothers' behaviors included perceivedsusceptibility to diarrhea, perceived severity of diarrhea, perceived benefits of diarrhea prevention behaviors, and perceivedbarriers of diarrhea prevention behaviors CP 〈 .01, p 〈 .01, p 〈 .01, and p 〈 .01 respectively). Further, mothers had highperception to comply with diarrhea prevention behaviors. Those who perceived that diarrhea prevention behaviors werehighly beneficial to their children had good behaviors in preventing diarrhea. However, taking certain actions must considernegative aspects. 展开更多
关键词 Mothers' PERCEPTIONS and behaviors preventing diarrhea CHILDREN aged 1-5 YEARS
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Analysis of the Variations of Body Build of Middle-and Old-aged and Research on the Prototype
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作者 李兴刚 沈卫勤 《Journal of China Textile University(English Edition)》 EI CAS 2000年第4期61-65,共5页
The characteristics of body build of middle - and old -aged women and its rule of variations as well as the basic sizes of various parts are discussed. All these are based on the body measurements of this age group, a... The characteristics of body build of middle - and old -aged women and its rule of variations as well as the basic sizes of various parts are discussed. All these are based on the body measurements of this age group, and also on the statistical studies of the measurement data. By setting the regression equation, the calculating formulae of various control parts are obtained, thus establishing the prototype of this age group for women. 展开更多
关键词 MIDDLE - and old - aged characteristics of BODY BUILD APPAREL sizes and types PROTOTYPE
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Post-fire regeneration dynamics in whitebark pine(Pinus albicaulis) forests in Wind River and Absaroka Mountains,Wyoming, USA
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作者 Jennifer G.Klutsch Betsy A.Goodrich William R.Jacobi 《Journal of Forestry Research》 SCIE CAS CSCD 2015年第3期719-733,共15页
Whitebark pine (Pinus albicaulis) populations are in decline across the species' range due to historic wildfire exclusion, mountain pine beetle (Dendroctonus ponderosae, MPB) outbreaks, and an invasive fungal pat... Whitebark pine (Pinus albicaulis) populations are in decline across the species' range due to historic wildfire exclusion, mountain pine beetle (Dendroctonus ponderosae, MPB) outbreaks, and an invasive fungal pathogen causing the disease white pine blister rust (Cronartium ribicola, WPBR). Despite reliance on stand- replacing fires, information on whitebark pine regeneration occurrence is limited and the trajectory of future forests is largely unknown in some areas of the range. Regeneration densities were assessed in burned and adjacent non-burned areas at six high elevation locations in northwest Wyoming where stand-replacing fires occurred 8-32 years before thesurveys. In these locations at the eastern extent of the species range, we assessed what site factors were associ- ated with regeneration success. Whitebark pine regen- eration density was greater and seedlings were older in non-burned compared to burned areas. Within burns, north aspects had more regeneration than south aspects. Potential seed source densities and other species' regeneration were positively related to whitebark p^ne regeneration densities in burned areas. South facing slopes or grass covered areas may have either delayed or no regeneration of whitebark pine without the help of artificial planting. 展开更多
关键词 RECRUITMENT age structure White pineblister rust - Mountain pine beetle RESTORATION
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Verifying the Effects of an Education Program Leveraging Information Technology to Promote Cervical Cancer Screening in Women Aged 20 - 29—A One-Year Longitudinal Study
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作者 Nakamura Tomoko Sasaki Ayako 《Health》 2020年第11期1526-1542,共17页
The purpose of this research is to implement an IT-based education program in order to promote cervical cancer screenings for women aged 20 - 29 years, as well as to examine the results of said program. This is a long... The purpose of this research is to implement an IT-based education program in order to promote cervical cancer screenings for women aged 20 - 29 years, as well as to examine the results of said program. This is a longitudinal/comparative study of two groups, one for which the program was implemented (the intervention group), and the other for which it was not (the control group). The program consisted of attending a health lecture and encouragement to be screened one month, six months, and one year later sent through IT-based methods. The target was unmarried women aged 20 - 29 who had neither previously given birth nor had been screened for cervical cancer in a period one year prior. They were divided into two groups, the intervention group (n = 142) and control group (n = 145). The effectiveness of the program was assessed via an initial survey and further surveys six months and one year later. Results were based on the Japanese version of the Health Belief Model Scale for Cervical Cancer and the Pap Smear Test (HBMSCCPST), knowledge scores in the categories of Healthy Lifestyles, Cervical Cancer, Cervical Cancer Screening, and screening behavior. A two-way ANOVA of the HBMSCCPST subscales and knowledge scores in the initial, six-month, and one-year surveys was performed, showing interaction in Cervical Cancer (p = 0.00). Main effects were observed in Cervical Cancer Screening (p = 0.00) and Healthy Lifestyles (p = 0.00). Regarding the amount of change from the initial survey, knowledge scores in the Cervical Cancer (p = 0.027) and Cervical Cancer Screening (p = 0.016) categories were significantly higher in the intervention group than in the control group. There was no significant difference in cervical cancer screening rates (p = 0.26) between the two groups. However, a small-degree effect size was observed for Benefits, Seriousness, and Susceptibility subscales in both examinees and non-examinees. Although the educational program of this study was effective in improving the knowledge of women in their twenties, there was little improvement in HBMSCCPST and it did not lead to the promotion of cervical cancer screening. In order to raise interest in cervical cancer screening, it is necessary to consider useful content to guide women to consult with healthcare professionals, a long-term population approach, and organizational structure of consultation. 展开更多
关键词 Cervical Cancer Screening age 20 - 29 Educational Program INFORMATION Technology
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Prevelance of Pregnancy Complications among Women Aged 15 - 49 in Oğuzeli, Turkey
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作者 Neriman Aydin Birgul Ozcirpici Mithat Temizer 《Open Journal of Obstetrics and Gynecology》 2016年第11期623-629,共8页
As maternal deaths have decreased worldwide, increasing attention has been placed on the study of severe obstetric complications, such as hemorrhage, eclampsia, and obstructed labor, to identify where improvements can... As maternal deaths have decreased worldwide, increasing attention has been placed on the study of severe obstetric complications, such as hemorrhage, eclampsia, and obstructed labor, to identify where improvements can be made in maternal health. The objective of this study was to determine pregnancy complications and prenatal care among women aged 15 - 49 in O&#287;uzeli, Turkey, and to provide data for prevention in the field. This descriptive, cross-sectional study was conducted between February and May 2013 in O&#287;uzeli distinct, Turkey. The total women registered to family doctors in O&#287;uzeli was listed and, 470 women were selected using a stratified and simple random sampling technique. Pregnancy complications were asked for the last pregnancy of each women. Of the women, 23.9% (n = 109) declared that they experienced pregnancy complications during their pregnancies. The most frequent problems were anemia (11.1%) hypertension (3.7%) and diabetes mellitus (2.4%) respectively. Women having chronic diseases before their pregnancy were more likely to have pregnancy complications compared to healthy women (p = 0.005). The mean number of prenatal care among women having pregnancy complications was 5.47 ± 3.57, while it was 3.84 ± 3.00 among healthy women (p = 0.000). Women having chronic diseases should be handled carefully and, pregnancy should be delayed until the chronic disease’s remission. Family planning in primary care is the key measure to archive this. Early diagnosis of hypertension among young women is highly important for the women’s and infants’s health during pregnancy, and for the women’s future heath. During prenatal care, women should be trained about correct eating habits and activity. 展开更多
关键词 Pregnancy Complications Women aged 15 - 49 Prenatal Care
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