Analysis of Cervical Cancer Preventive Behavior Based on the Health Belief Model

目的： 通过对厦门市学龄期女生母亲宫颈癌预防行为的调查研究，了解女生母亲对 HPV、HPV疫苗、宫颈癌筛查的认知、态度和行为及相关的健康信念；分析女性 对HPV疫苗和宫颈癌筛查的认知、态度和行为的影响因素；以健康信念模式为 理论基础，分析其各部分对宫颈癌预防行为的解释和预测作用，为今后HPV疫 苗的推广和筛查的普及提供基础数据和政策建议。 方法： 本研究以厦门市学龄期女生母亲为研究对象，采用多阶段随机抽样的方法， 对抽取的调查对象采取自填式问卷调查。用相对数描述调查对象的社会人口学特 征及对宫颈癌预防行为的认知、态度和行为；用Logistic回归分析女性对宫颈癌 预防行为的...Objective： This study was aimed to analyze the preventive behavior of cervical cancer, which included cervical cancer screening and HPV vaccine, among mothers of school-age girls in Xiamen. The knowledge, behavior, attitude, and related health belief about the preventive behavior were analyzed. The influence factors of the women’s preventive behaviorwere identified. Based on the health b...学位：医学硕士院系专业：公共卫生学院_社会医学与卫生事业管理学号：3272013115057

与子女关系对老年人养老意愿的影响

目的了解与子女代际关系对老年人养老意愿的影响。方法采用多阶段抽样方法对老年人进行面对面问卷调查,内容包括社会人口学特征、家庭情况、健康状况和养老意愿等。采用Logistic回归分析与子女的关系对老年人养老意愿的影响。共完成1 292份问卷,有效1 259份,其中家庭养老、社区居家养老和机构养老的老年人分别占70.1%、21.0%和8.9%。结果以家庭养老为对照,与子女关系疏远者选择社区居家养老和机构养老的OR值(95%CI)分别为1.93(1.34～2.79)、2.68(1.61～4.47)。以机构养老为对照,与子女关系疏远者选择社区居家养老的OR值(95%CI)为0.72(0.42～1.25)。结论老年人多选择家庭养老,与子女的关系对其养老意愿有影响。厦门市老龄委委托项目(XDHT2013357A

Infection Status and Influencing Factors of Human Papillomavirus in Patients with Condylomata Acuminata

目的了解我国内地尖锐湿疣（CA）患者的人乳头瘤病毒（HPV）感染状况,并探讨其影响因素。方法系统检索Pub Med、Science Direct Online、中国知网、万方数据知识服务平台、维普网中关于我国内地CA患者HPV检测的文献,检索时间均为1990年1月—2013年12月。根据样本量对各文献HPV感染率进行加权合并,计算CA患者的HPV及各基因型合并感染率,并分析不同研究年份、研究地区CA患者的HPV合并感染率,采用多因素Logistic回归分析探讨CA患者感染/检出HPV的影响因素。结果共纳入文献67篇,累计CA患者10 757例,感染HPV 9 328例（86.7%）。CA患者的HPV合并感染率为95.7%〔95%CI（95.2%,96.2%）〕,其中合并感染率较高的前3种基因型为HPV6/11〔81.2%,95%CI（77.1%,85.2%）〕、HPV6〔43.8%,95%CI（35.2%,52.5%）〕、HPV11〔38.3%,95%CI（32.8%,43.8%）〕。1990—2003、2004—2013年CA患者的HPV合并感染率分别为96.6%〔95%CI（95.8%,97.5%）〕、94.6%〔95%CI（94.0%,95.3%）〕;东、中、西部患者的HPV合并感染率分别为95.1%〔95%CI（94.4%,95.7%）〕、91.7%〔95%CI（89.3%,94.1%）〕、96.5%〔95%CI（95.4%,97.6%）〕。多因素Logistic回归分析结果显示,研究年份、研究地区、标本类型、诊断方法是CA患者感染/检出HPV的影响因素（P〈0.05）。对不同基因型进行分析,结果显示,研究年份、研究地区、标本类型、诊断方法是CA患者感染/检出HPV6的影响因素,研究年份、研究地区为西部、标本类型、诊断方法是CA患者感染/检出HPV11的影响因素,研究地区为中部、标本类型是CA患者感染/检出HPV16的影响因素,研究地区、标本类型、诊断方法是CA患者感染/检出HPV18的影响因素（P〈0.05）。结论我国内地CA患者的HPV感染以HPV6、HPV11基因型为主,感染率近10年来有所下降,东部地区感染率较高。病理检查确诊、采用剥落细胞进行DNA检测,可以提高CA患者的HPV检出率。Objective To study the infection status of human papillomavirus（HPV） in patients with condylomata acuminata（CA） in mainland China and explore its influencing factors. Methods The literatures on HPV detection of CA patients in mainland China published between January 1990 and December 2013 were systematically retrieved from Pub Med,Science Direct Online, China National Knowledge Infrastructure, Wanfang Data Knowledge Service Platform, and the VIP database. According to the sample size,HPV infection rates of each literature were weighted and combined and the infection rates of HPV and the combined infection rate of each genotype of CA patients were calculated,and the combined infection rate of HPV of CA patients in different years and areas of study was analyzed. Multivariate Logistic regression analysis was used to investigate the influencing factors of CA patients infected / detected with HPV. Results A total of 67 literatures were included in the study. The number of CA patients accumulated to 10 757,and 9 328 cases（86. 7%） infected with HPV. The combined infection rate of HPV in patients with CA was 95. 7% 〔95% CI（95. 2%,96. 2%） 〕,and the top three genotypes with high infection rate were HPV6 /11 〔81. 2%,95% CI（77. 1%,85. 2%） 〕, HPV6 〔43. 8%,95% CI（35. 2%,52. 5%） 〕, HPV11〔38. 3%,95% CI（32. 8%,43. 8%） 〕. The combined infection rate of HPV in patients with CA between 1990 and 2003 and between 2004 and 2013 was 96. 6% 〔95% CI（95. 8%,97. 5%） 〕and 94. 6% 〔95% CI（94. 0%,95. 3%） 〕respectively;the combined infection rate of HPV of patients in eastern, middle and western areas was 95. 1% 〔95% CI（94. 4%,95. 7%） 〕,91. 7% 〔95% CI（89. 3%,94. 1%） 〕,and 96. 5% 〔95% CI（95. 4%,97. 6%） 〕respectively. Multivariate Logistic regression analysis showed that the year of study,areas of study,type of specimen and methods of diagnosis significantly influenced the infection and detection of HPV in CA patients（P 0. 05）. After analyzing different genoty福建省自然科学基金青年项目（2014J05097

基于递归系统模型的宫颈癌患者住院费用影响因素分析

目的分析宫颈癌患者住院费用的影响因素,为控制住院费用提供依据。方法收集厦门市某三甲医院2012 -; 2014年入院接受治疗且信息完整的宫颈癌患者的一般情况和住院费用等资料,通过递归系统模型分析各因素的直接与间接效应,计算总效应,找出费用控制的关; 键性因素。结果共纳入524例宫颈癌患者,其中医保患者占49.8%,首诊年龄的中位数为48岁,住院天数的中位数为28天,总费用的中位数为43841; .06元。支付方式、转移情况对总费用仅有直接效应,同时治疗其他疾病、MRI检查仅有间接效应;; 临床分期、治疗方案、手术方式既有直接效应又有间接效应;; 治疗方案的总效应值最大。结论宫颈癌住院费用受到多个因素的直接效应、间接效应、直接和间接效应的影响,其中以治疗方案的影响最大。可通过规范化制定治疗; 方案控制宫颈癌的住院费用。厦门大学大学生创新项目基

Development and validation of a combustion large-eddy-simulation solver based on fully compressible formulation and tabulated chemistry

This study concerns the development and validation of a high-fidelity CFD solver for large-eddy simulations (LES) of combustion and reacting flows. The solver is built upon a high-resolution numerical scheme and leverages a compressible flamelet formulation, so that it can capture both the turbulent combustion and thermoacoustic effects simultaneously. The validation study is first performed by considering a scalar-mixing case in homogeneous turbulence, and then extended to LES of a non-premixed jet flame. The solver accuracy is assessed by comparing the numerical solutions with the available experimental data. It is found that the newly developed solver is able to accurately predict the time-averaged combustion fields as well as the fluctuation quantities. The predictive accuracy is comparable to that of the state-of-the-art low-Mach solvers in literature. (C) 2022 Elsevier Masson SAS. All rights reserved

超越离合器研究现状及发展趋势分析

超越离合器一般具有超越和接合两种状态，是实现传动系统工况转换的核心部件。随着机械传动系统技术的发展，对超越离合器的工况要求越来越高。为了便于深入系统地开展超越离合器研究，满足新时代高端装备发展需求，通过梳理啮合式、摩擦式两种不同类型的超越离合器相关文献，总结了近年来超越离合器的研究热点、难点，并分析了超越离合器的未来发展方向，为后续超越离合器研究的开展提供了依据和借鉴

宁蒙黄河治理对策

资料分析表明,宁蒙黄河冰凌灾害频繁的被动局面是由于主槽萎缩、卡冰结坝所致;而洪灾与用水安全问题则是河势变化无常和多沙支流突发性洪水淤堵干流形成&quot;沙坝&quot;引起的。为有效恢复宁蒙河段的行洪排沙功能,实现河道减淤、恢复和维持河道中水河槽、保障防洪(凌)安全的宁蒙黄河治理目标,从产沙、输沙、调控机理三个角度出发,分析了各因素对宁蒙黄河河床演变特征的影响。就产沙而言,通过产沙地貌分区、遥感影像分析和流域水系分区相结合的方法确定黄河上游不同沙源区的分布。基于提出的风蚀输沙通量计算方法及风沙入河估算方法,并结合区域风速与植被覆盖率实测数据,发现近30 a风速下降、区域植被覆盖率上升是风沙侵蚀量与入黄风沙量逐渐减少的原因。分析宁蒙河段日均风速、日降雨量和已有侵蚀观测资料,发现宁蒙地区的风水两相侵蚀主要体现为风蚀与水蚀交错存在及其交互促进,风力侵蚀主要发生在3&mdash;5月,水力侵蚀则集中在7&mdash;9月。现场观测与黄土降雨侵蚀模型试验则表明,重力侵蚀在黄土高原的整个侵蚀过程中占有重要的份额,暴雨形成的径流是黄土遭到侵蚀的主要外营力,也是激发和加剧重力侵蚀发展的重要影响因子。总体来看,宁蒙黄河的流域产沙具有典型的风-水-重力多营力交互特点,在比尺模型与野外观测揭示的流域径流汇集过程、沟道水流与河床自适应以及非平衡输沙机理基础上,构建了复杂地貌形态的小流域产流产沙动力学模型,成功模拟了不同植被特征和分布状况对流域产流产沙的影响,并得出了植被的减水减沙效果与延滞径流洪峰的作用同郁闭度呈正相关关系,陡坡区域植被对径流洪峰的延滞作用大于缓坡区域的结论。就输沙而言,以泥沙起动、推移质输沙与河床均衡调整等基础理论为基础,提出了水沙两相流数值模拟方法与冲积河流全沙运动模型相似条件。数值计算与模型试验表明,龙羊峡、刘家峡水库联合运用改变径流分配是导致宁蒙河道淤积萎缩的主因,协调水沙关系是修复黄河行洪排沙功能的有效途径。并分析确定了宁蒙黄河河道水沙调控阈值和多沙支流入汇口干流防淤堵的流量阈值,即宁蒙黄河临界调控流量为2 000～2 500 m~3/s,临界含沙量5.4～10.5 kg/m~3,调控时间为15～20 d,证实了通过协调水沙关系可修复和维持宁蒙黄河行洪排沙功能;防止多沙支流入汇堵河的黄河流量阈值为2 500 m~3/s,治理淤堵沙坝配合&quot;挖引疏浚&quot;有效冲刷的干流阈值流量为3 000 m~3/s。从各河段模型试验给出的来沙系数阈值沿程减小的变化趋势看,在内蒙古河段现状河床边界条件下,全线冲刷要求的流量至少为2 600 m~3/s,表明黑山峡工程必须预留充足的水沙调控库容。就宏观调控而言,针对流域下垫面条件多样、入黄泥沙沙源众多、河道输沙受水库调度影响显著等特点,以干流水库群为调节器,以径流泥沙为调节对象,采用模块化开发方法集成了风-水-重力侵蚀模型、河道输沙模型、冰情预报模型于水库联调模型上,构建了可进行大范围、高精度的水沙过程模拟预报的宁蒙黄河区域数字流域模型平台,并成功在下河沿&mdash;石嘴山河段进行了调试和应用。此外,针对宁蒙黄河河型复杂、凌汛期易卡冰结坝、夏季多沙支流突发性洪水易堵干流形成&quot;沙坝&quot;等河情状况,提出了&quot;水沙调控、支流拦沙、堤外放淤&quot;的处治模式。在稳定性分汊河段、大型支流入汇段、受沙卵石河床组成限制的河段,则指出不宜强行套用微弯型治理方案,而可采用&quot;工程导送(简称为&lsquo;导&rsquo;)、塞支强干(简称为&lsquo;塞&rsquo;)、挖引疏浚(简称为&lsquo;挖&rsquo;)&quot;方针,亦即&quot;导、塞、挖并举&quot;的对策。建设黑山峡水库、南水北调西线工程等是宁蒙河段长远治理的根本对策,通过增加河道内汛期水量和调水调沙,恢复并维持中水河槽,提供防凌库容,才能彻底解决宁蒙河段凌洪灾害,并得出建立黄河上游沙源固定、支流泥沙阻截、干流泥沙输导与堤外淤沙处置的&quot;固-阻-输-置&quot;综合防治体系,是目前可行的治理对策的结论。</p

Polymeric amorphous carbon films with an extended range of optical gaps

A new type of hydrogenated amorphous carbon (a-C:H) film is prepared under low bias voltage and an extended range of plasma density in a radio-frequency plasma enhanced chemical vapor deposition system (RF-PECVD). The obtained a-C:H samples are grown on electrically floating substrates instead of substrates mounted on the powered or the grounded electrode of RF-PECVD, and have structure and properties that are significantly different from regular a-C:H films. The samples have an optical gap ranging from 1 to 4 eV, while maintaining low intrinsic stress between 0.1 and 0.2 GPa. Fractions of all types of CH x carbon-hydrogen groups of the obtained samples are measured, analyzed, and used to locate these samples in the carbon-hydrogen ternary phase diagram. The obtained samples are located in the same general area as the regular a-C:H films, indicating configurational rather than compositional structural differences. The hydrogenation ratio of sp3 carbons in the obtained samples is found to remain at a very high level, and is used to explain their unique properties. ? 2013 Elsevier B.V