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Spatio-temporal analysis of the incidence of colorectal cancer in Guangzhou,2010-2014

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Chinese Journal of Cancer 2017年第10期36卷 516-523页

作者： Ke Li Guo-Zhen Lin Yan Li Hang Dong Huan Xu Shao-Fang Song Ying-Ru Liang Hua-Zhang Liu Department of Biostatistics and Cancer Registration Guangzhou Center for Disease Control and PreventionGuangzhou 510440GuangdongP.R.China

Introduction: Colorectal cancer(CRC) is a common type of neoplasm. This study examined the spatio?temporal distribution of the CRC incidence in Guangzhou during 2010–***: Colorectal cancer incidence data were obtained from the Guangzhou Cancer Registry System. Spatial autocorrelation analysis and a retrospective spatio?temporal scan were used to assess the spatio?temporal cluster distribution of CRC ***: A total of 14,618 CRC cases were registered in Guangzhou during 2010–2014, with a crude incidence of 35.56/100,000 and an age?standardized rate of incidence by the world standard population(ASRIW) of 23.58/100,000. The crude incidence increased by 19.70% from 2010(32.88/100,000) to 2014(39.36/100,000) with an average annual percentage change(AAPC) of 4.33%. The AAPC of ASRIW was not statistically significant. The spatial autocorrelation analysis revealed a CRC incidence hot spot in central urban areas in Guangzhou City, which included 25 streets in southwestern Baiyun District, northwestern Haizhu District, and the border region between Liwan and Yuexiu Dis?tricts. Three high? and five low?incidence clusters were identified according to spatio?temporal scan of CRC incidence clusters. The high?incidence clusters were located in central urban areas including the border regions between Bai?yun, Haizhu, Liwan, and Yuexiu ***: This study revealed the spatio?temporal cluster pattern of the incidence of CRC in Guangzhou. This information can inform allocation of health resources for CRC screening.

关键词： Colorectal cancer Spatial analysis Spatial autocorrelation Spatio-temporal clustering

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Dengue epidemiology

Global Health Journal 2019年第2期3卷 37-45页

作者： Qinlong Jing Ming Wang Guangzhou Center for Disease Control and Prevention No.1Qide RoadGuangdong 510440China

Dengue is the fastest spreading,mosquito-borne viral infectious disease worldwide,with remarkable morbidity and *** the past decades,profound contributions have been made towards understanding its epidemiology,including disease burden and distributions,risk factors,and control and prevention *** continues to disseminate to new areas,including high latitude regions,and a new serotype (dengue virus serotype 5) has been *** research has made new progress,in which the licensed yellow fever and dengue virus quadrivalent chimeric vaccine is now under further safety *** disease surveillance,because of its operational simplicity,rapidity,capability,and utility as an indicator of disease severity,dengue virus NS1 antigen detection has great promotion and application value among primary health care *** control progress has driven new breakthroughs in biotechnology,including Wolbachia-infected Aedes and genetically modified *** Aedes variants have been used to block transmission of the dengue virus through population replacement and *** the future,vector control should still be pursued as a key measure to prevent transmission,along with anti-viral drug and vaccine research.

关键词： Dengue Epidemiology Control and prevention Review

基于改进YOLOv4的X射线图像违禁品检测算法

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兵工学报 2021年第12期42卷 2675-2683页

作者：穆思奇林进健汪海泉魏雄志武警警官学院训练基地广东广州510440

为提高安检速度、实现X射线图像中违禁物品的自动检测,提出一种基于改进YOLOv4的X射线图像违禁品检测算法。该算法在单阶段目标检测算法YOLOv4基础上设计一种空洞密集卷积模块。将上采样链路融合后特征输入空洞密集卷积模块中,增强特征... 详细信息

为提高安检速度、实现X射线图像中违禁物品的自动检测,提出一种基于改进YOLOv4的X射线图像违禁品检测算法。该算法在单阶段目标检测算法YOLOv4基础上设计一种空洞密集卷积模块。将上采样链路融合后特征输入空洞密集卷积模块中,增强特征表达能力和卷积视野。对融合后特征信息加入注意力机制,用来增强有效特征和抑制无效特征,最终得到表征图像信息的特征图输入检测头部。采用Mosaic数据增强方法训练网络,提升网络的鲁棒性。结果表明:该算法在公开SIXray数据集上的均值平均精度达到80.16%,检测速度为25帧/s;该算法在公开SIXray数据集上多类违禁物品能够取得较高的检测精度,且满足检测的实时性要求。

关键词：违禁品检测 YOLOv4 X射线图像空洞密集卷积注意力机制数据增强

结合图像上下文的二阶导数边缘融合线条精确定位与配准

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计算机辅助设计与图形学学报 2017年第4期29卷 616-623页

作者：牟丽杨敏广东警官学院计算机科学与技术系广州510440 广东警官学院刑事科学技术系广州510440

线条工具痕迹图像中线条的精确定位是实现犯罪工具痕迹自动检验比对的关键.针对边缘检测方法易受到图像噪声的影响产生虚假边缘,不能够对痕迹中的实际线条进行准确定位,导致线条特征提取困难的问题,提出一种结合图像上下文的二阶导数边... 详细信息

线条工具痕迹图像中线条的精确定位是实现犯罪工具痕迹自动检验比对的关键.针对边缘检测方法易受到图像噪声的影响产生虚假边缘,不能够对痕迹中的实际线条进行准确定位,导致线条特征提取困难的问题,提出一种结合图像上下文的二阶导数边缘融合线条精确定位方法.首先根据当前线条工具痕迹人工比对方法定义图像检验的比对线,沿比对线方向计算图像的二阶导数,并根据二阶导数边缘的性质对导数值进行规则融合,以计算线条痕迹中的脊线和谷线区域;然后根据人工线条痕迹比对经验对线条区域进行优化规整,删除深谷中的伪线条;最后结合图像上下文计算脊线区域中显著点实现线条的精确定位.在线条精确定位的基础上,以二阶导数绝对值最大脊线条、灰度值最大脊线条、最深谷为特征线条,以及特征线条之间的距离为配准特征模板(向量)对实验样本进行配准,能够对工作部位具有较显著特征工具形成的痕迹实现较高配准率.实验结果表明,文中提出的线条定位和配准方法能够快速实现线条工具痕迹图像中线条的精确定位和配准,为实现线条工具痕迹自动比对奠定基础.

关键词：线条工具痕迹二阶导数边缘融合图像上下文线条定位线条配准

The compartmentalized upper respiratory mucosa needs time to rally a sufficient immune force for SARS-CoV-2 clearance

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Cellular & Molecular Immunology 2022年第12期19卷 1425-1428页

作者： Xiaowen Zheng Xiaoping Tang Feng Li Guangzhou Eighth People’s Hospital Guangzhou Medical UniversityGuangzhou510440China Guangzhou Laboratory Bio-IslandGuangzhou510320China

SARS-CoV-2 viral reoccurrence,which is defined as reliable detection of mature virus or viral products in discharged or recovered individuals with at least two consecutive negative detections of viral genomic ribonucleic acid(RNA)by standard reverse transcription polymerase chain reaction(RT‒PCR),raises public concerns about transmission risk and warrants exploration of the underlying mechanism.

关键词： mechanism. mucosa respiratory

融入与隔离:从打工妹到卖淫女的角色转变——对某市收容教育所女学员的个案研究

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青年研究 2007年第1期 43-49页

作者：张晓红广东警官学院邮编:510440

本文运用个案研究方法,通过对某市收容教育所女学员的非结构式深度访谈,描述和分析这些流动女童/女青年从普通的打工妹向卖淫女的角色转变过程。

关键词：卖淫女主文化收容教育核心文化打工妹角色转变访谈对象

Retrospective Analysis of the Duration of Hospitalization of Imported Patients Infected with SARS-CoV-2 in Guangzhou, 2021

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Infectious Diseases & Immunity 2023年第1期3卷 36-39页

作者： Zhiwei Xie Guofang Tang Lu Li Jingrong Shi Qingxin Gan Xiaowen Zheng Jingyan Tang Huimin Zeng Chuyu Zhang Sisi Cheni Jianping Cui Zishi Lin Lihua Lin Youxia Li Jinxin Liu Feng Li Fengyu Hui Xiaoping Tang Xilong Deng Guangzhou Eighth People's Hospital Guangzhou Medical UniversityGuangzhou 510440China Guangzhou Laboratory Guangzhou 510440China.

The pandemic of coronavirus disease 2019 is“not over,”in fact,the“dynamic clearing”policy for SARS-CoV-2 control and prevention in China has been firmly *** study aimed to analyze the clinical symptoms and dynamic viral RNA changes in 2021 at Guangzhou Eighth People’s *** study showed that 31.4%of the patients(695/2212)tested negative for viral RNA from admission to the final release from *** all negative cases,86.5%(601/695)remained in the hospital for no more than 5 days and were asymptomatic or *** the remaining 402 patients who stayed for no more than 5 days,76.4%(307/402)were viral RNA retest positive during the isolation ***,96.4%of the peak viral RNA(296/307)was over Ct=33 cycles during the isolation stage.

关键词： COVID-19 Imported Symptom Viral RNA

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基坑工程预应力锚索锚固力试验研究

岩石力学与工程学报 2007年第6期26卷 1158-1163页

作者：唐孟雄广州市建筑科学研究院广东广州510440

基坑工程预应力锚索锚固力的影响因素很多,主要有锚固段的岩土层物理力学性质、锚索施工工艺及锚索张拉锁定过程中的预应力损失等。通过工程试验,分析锚索锁定时钢绞线不均匀受力,造成这种现象主要有两个原因:(1)千斤顶在自重作用下,千... 详细信息

基坑工程预应力锚索锚固力的影响因素很多,主要有锚固段的岩土层物理力学性质、锚索施工工艺及锚索张拉锁定过程中的预应力损失等。通过工程试验,分析锚索锁定时钢绞线不均匀受力,造成这种现象主要有两个原因:(1)千斤顶在自重作用下,千斤顶轴心偏离锚索的轴心;(2)锚杆孔的施工角度与设计角度的误差,引起锚索与锚座不垂直。通过试验分析单次张拉锁定的预应力损失、循环荷载下锁定的预应力损失,循环荷载下,锚索的锚固力增加,预应力损失减少。分析基坑开挖过程中锚索锚固力动态监测结果。讨论锚索抗拔验收试验标准存在的问题,提出锚索弹性变形简化计算方法,对锚索抗拔验收试验标准提出了改进建议,锚索抗拔验收试验应综合考虑锚头总位移、每级荷载下锚头位移量及卸荷后锚头位移的回弹率等3个指标。

关键词：岩土工程基坑预应力锚索预应力损失锚固力抗拔验收

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影响工伤职工重返工作岗位的因素分析

中国康复医学杂志 2016年第4期31卷 443-446页

作者：杨晓姗张胜岚林岳卿广东省工伤康复医院广州510440

目的:分析影响工伤职工重返工作岗位的因素,为促进工伤职工再就业制订干预措施。方法:查阅本中心社会康复科的档案资料(包括基本信息、辅导记录、出院后跟进记录),采用单因素分析检查及二分类logistic回归分析影响重返工作的因素。结果:... 详细信息

目的:分析影响工伤职工重返工作岗位的因素,为促进工伤职工再就业制订干预措施。方法:查阅本中心社会康复科的档案资料(包括基本信息、辅导记录、出院后跟进记录),采用单因素分析检查及二分类logistic回归分析影响重返工作的因素。结果:在1953例工伤职工中,1346例(68.9%)在随访期间成功返回工作岗位,单因素分析表明:年龄、文化程度、户籍、社保归属地、公司性质、伤残等级均影响重返工作岗位的结局。多因素分析结果表明:伤残级别的影响最大,其次是文化程度、公司性质、社保归属地。结论:多种因素影响工伤职工返回工作岗位,伤残级别、文化程度、社保归属地、公司性质对重返工作岗位有影响。

关键词：工伤职工重返工作岗位因素分析