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A generalization of Poisson-Sujatha distribution and its applications to ecology
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作者 Rama Shanker Kamlesh Kumar Shukla 《生物数学学报:英文版》 2019年第2期37-47,共11页
A generalization of Poisson Sujatha distribution(AGPSD),which includes Poisson-Lindley distribution(PLD)and Poisson-Sujatha distribution(PSD)as particular cases,has been proposed and studied.Its moments and moments-ba... A generalization of Poisson Sujatha distribution(AGPSD),which includes Poisson-Lindley distribution(PLD)and Poisson-Sujatha distribution(PSD)as particular cases,has been proposed and studied.Its moments and moments-based measures including coefficient of variation,skewness,kurtosis and index of dispersion have been obtained and their behaviors have been discussed.The estimation of its parameters has been discussed with maximum likelihood estimation.The applications of the proposed distribution has been explained through two examples of count data from ecology and the goodness of fit of the distribution has been compared with Poisson distribution,PLD and PSD. 展开更多
关键词 Sujatha DISTRIBUTION Poisson-Sujatha DISTRIBUTION GENERALIZATION of Sujatha DISTRIBUTION MOMENTS and moments-based measures maximum LIKELIHOOD estimation APPLICATIONS
规范化管理中药房饮片及处方质量控制对照研究
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作者 刘海兰 《实用中医内科杂志》 2019年第3期66-67,共2页
[目的]观察规范化管理中药房饮片及处方质量控制效果。[方法]使用对照方法,将800例中药房处方按实施中药质量规范化管理前后分为两组。实施前400例常规管理方式。实施后400例规范化管理。观测规范化管理中药房药品配发准确率、退换药品... [目的]观察规范化管理中药房饮片及处方质量控制效果。[方法]使用对照方法,将800例中药房处方按实施中药质量规范化管理前后分为两组。实施前400例常规管理方式。实施后400例规范化管理。观测规范化管理中药房药品配发准确率、退换药品率、平均取药时间、患者满意度。[结果]药品配发准确率、退换药品率实施后优于实施前(P<0.01),平均取药时间实施后短于实施前(P<0.01),患者满意度实施后优于实施前(P<0.01)。[结论]规范化管理中药房可有效对饮片及处方质量控制,效果满意,值得推广。 展开更多
关键词 规范化管理 中药房 饮片 处方 质量控制 采购 存储 配发 药品配发准确率 退换药品率 平均取药时间 对照研究
Research on Distribution Network Automation and Distribution Network Planning Mode 预览
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作者 Xuan Chen 《现代电子技术(英文)》 2019年第1期27-30,共4页
Based on the research of distribution network automation and distribution network planning mode, the analysis of the significance of urban distribution network automation must be performed at the first place. Combined... Based on the research of distribution network automation and distribution network planning mode, the analysis of the significance of urban distribution network automation must be performed at the first place. Combined with the problems existing in China’s current distribution network, it is concluded that, establish effective hardware support system, data sharing and feeder automation to ensure automation safety;strengthen power distribution and power line material testing to improve distribution automation system and distribution network planning;research methods of improving the professional skills and comprehensive quality of professionals. 展开更多
关键词 DISTRIBUTION NETWORK AUTOMATION DISTRIBUTION NETWORK PLANNING Mode RESEARCH
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Reactive power deployment and cost benefit analysis in DNO operated distribution electricity markets with D-STATCOM
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作者 Atma Ram GUPTA Ashwani KUMAR 《能源前沿:英文版》 CSCD 2019年第1期86-98,共13页
The aim of this paper is to analyze unbalanced radial distribution systems(UBRDS)with the distribution static compensator(D-STATCOM).The main objectives of this paper are D-STATCOM allocation in UBRDS with an objectiv... The aim of this paper is to analyze unbalanced radial distribution systems(UBRDS)with the distribution static compensator(D-STATCOM).The main objectives of this paper are D-STATCOM allocation in UBRDS with an objective of providing reactive power support to enhance voltage profile and reduce line losses of the distribution network,determination of optimal D-STATCOM rating subjected to minimization of total cost,and impact of D-STATCOM placement on improving power factor and savings in cost of energy loss.The analysis is conducted on a large industrial load model with light,medium and high loading scenarios.Further,the impact of load growth is also considered for better planning of the power distribution system.The results are obtained on standard 25-bus UBRDS to check the feasibility of the proposed methodology. 展开更多
关键词 unbalanced DISTRIBUTION system D-STATCOM VOLTAGE sensitivity index LOAD models LOAD growth DISTRIBUTION network operator(DNO)
Gas–liquid mass transfer and flow phenomena in a peirce–smith converter: A numerical model study 预览
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作者 Hong-liang Zhao Xing Zhao +2 位作者 Liang-zhao Mu Li-feng Zhang Li-qiang Yang 《矿物冶金与材料学报:英文版》 SCIE EI CAS CSCD 2019年第9期1092-1104,共13页
A numerical model was established to simulate the flow field in a Peirce–Smith converter bath, which is extensively adopted in copper making. The mean phase and velocity distribution, circular area, and mean wall she... A numerical model was established to simulate the flow field in a Peirce–Smith converter bath, which is extensively adopted in copper making. The mean phase and velocity distribution, circular area, and mean wall shear stress were calculated to determine the optimal operation parameter of the converter. The results showed that the slag phase gathered substantially in the dead zone. The circular flow was promoted by increasing the gas flow rate, Q, and decreasing the nozzle height, h. However, these operations significantly aggravate the wall shear stress. Reducing the nozzle diameter, d, increases the injection velocity, which may accelerate the flow field. However, when the nozzle diameter has an interval design, the bubble behaviors cannot be combined, thus, weakening the injection efficiency. Considering the balance between the circular flow and wall shear stress in this model, the optimal operation parameters were Q = 30000–35000 m^3/h, h = 425–525 mm, and d = 40 & 50 mm. 展开更多
关键词 phase DISTRIBUTION velocity DISTRIBUTION wall shear stress Peirce–Smith CONVERTER
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Theoretical analytic model for RESURF AlGaN/GaN HEMTs
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作者 吴浩 段宝兴 +1 位作者 杨珞云 杨银堂 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第2期395-399,共5页
In this paper, we propose a two-dimensional(2D) analytic model for the channel potential and electric field distribution of the RESURF AlGaN/GaN high electron mobility transistors(HEMTs). The model is constructed by t... In this paper, we propose a two-dimensional(2D) analytic model for the channel potential and electric field distribution of the RESURF AlGaN/GaN high electron mobility transistors(HEMTs). The model is constructed by two-dimensional Poisson’s equation with appropriate boundary conditions. In the RESURF AlGaN/GaN HEMTs, we utilize the RESURF effect generated by doped negative charge in the AlGaN layer and introduce new electric field peaks in the device channels,thus, homogenizing the distribution of electric field in channel and improving the breakdown voltage of the device. In order to reveal the influence of doped negative charge on the electric field distribution, we demonstrate in detail the influences of the charge doping density and doping position on the potential and electric field distribution of the RESURF AlGaN/GaN HEMTs with double low density drain(LDD). The validity of the model is verified by comparing the results obtained from the analytical model with the simulation results from the ISE software. This analysis method gives a physical insight into the mechanism of the AlGaN/GaN HEMTs and provides reference to modeling other AlGaN/GaN HEMTs device. 展开更多
关键词 RESURF ALGAN/GAN HEMTS two-dimensional ANALYTIC model potential DISTRIBUTION electric field DISTRIBUTION
Leishmaniasis in the Argentine Republic: Temporal and geographical distribution from 2013 to 2017
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作者 GermanóMaría J Salomón María C +3 位作者 Neira Gisela Lozano Esteban Mackern-Oberti Juan P Cargnelutti Diego E 《亚太热带医药杂志:英文版》 SCIE CAS 2019年第7期300-305,共6页
Objective: To assess the temporal and geographical distribution of confirmed cases of cutaneous, mucocutaneous and visceral leishmaniasis in the Argentine Republic from 2013 to 2017. Methods: A retrospective study was... Objective: To assess the temporal and geographical distribution of confirmed cases of cutaneous, mucocutaneous and visceral leishmaniasis in the Argentine Republic from 2013 to 2017. Methods: A retrospective study was carried out using data collected from the Integrated Surveillance Bulletin database of the National System of Health Surveillance. Confirmed cases of cutaneous, mucocutaneous and visceral leishmaniasis up to the 52 nd epidemiological week of each year was included. Results: In the 5 years period, 1 295 confirmed leishmaniasis cases were reported in the Argentine Republic. One thousand twenty-eight(1 028) cases corresponded to cutaneous leishmaniasis(87.10%), being the most common type of leishmaniasis. Mucocutaneous leishmaniasis was in the second place in the country with 115 cases reported, mostly in the Northwest and Northeast regions. A total of 52 individuals with visceral leishmaniasis were identified and Misiones Province was the most affected. Conclusions: It is important to analyze the temporal and geographical distribution of leishmaniasis in order to provide an adequate management and surveillance. 展开更多
关键词 LEISHMANIASIS Epidemiology ARGENTINE REPUBLIC TEMPORAL DISTRIBUTION GEOGRAPHICAL DISTRIBUTION
Availability modeling for periodically inspection system with different lifetime and repair-time distribution
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作者 Junliang LI Yueliang CHEN +1 位作者 Yong ZHANG Hailiang HUANG 《中国航空学报:英文版》 SCIE EI CAS CSCD 2019年第7期1667-1672,共6页
Availability is a main feature of design and operation of all engineering system. Recently,availability evaluation of periodical inspection systems with different structures is at the center of attention due to the wi... Availability is a main feature of design and operation of all engineering system. Recently,availability evaluation of periodical inspection systems with different structures is at the center of attention due to the wide application in engineering. In this paper, an analytical and probabilistic availability model for periodical inspection system is proposed by a new recursively algorithm,which can achieve limiting average availability and instantaneous availability of periodical inspection system under arbitrary lifetime and repair-time distributions. Then three application examples are presented, the systems lifetime and repair-time are respectively fellow exponential/exponential,Weibull/normal and Weibull/lognormal distribution. Finally, a Weibull/lognormal system is studied to analyze the dynamic relationship between inspection period and availability. The results indicate that the proposed approach can provide the technology support for improving system availability and determining reasonable inspection period. 展开更多
关键词 AVAILABILITY Inspection PERIOD LIFETIME DISTRIBUTION Reliability Repair-time DISTRIBUTION
ZmHAK5 and ZmHAK1 function in K^+ uptake and distribution in maize under low K^+ conditions^FA
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作者 Ya-Juan Qin Wei-Hua Wu Yi Wang 《植物学报:英文版》 SCIE CAS CSCD 2019年第6期691-705,共15页
Potassium (K^+) is an essential macronutrient for plant growth and development. Transporters from the KT/HAK/KUP family play crucial roles in K^+ homeostasis and cell growth in various plant species. However, their ph... Potassium (K^+) is an essential macronutrient for plant growth and development. Transporters from the KT/HAK/KUP family play crucial roles in K^+ homeostasis and cell growth in various plant species. However, their physiological roles in maize are still unknown. In this study, we cloned ZmHAKs and ZmHAKi and investigated their functions in maize (Zea mays L.). In situ hybridization showed that ZmHAKs was mainly expressed in roots, especially in the epidermis, cortex, and vascular bundle. ZmH AK5 was characterized as a high-affinity K^+ transporter. Loss of function of ZmHAK5 led to defective K^+ uptake in maize, under low K^+ conditions, whereas ZmHAK5-over-expressing plants showed increased K^+ uptake activity and improved growth. ZmHAKi was upregulated under low K^+ stress, as revealed by RT-qPCR. ZmHAKi mediated K^+ uptake when heterologously expressed in yeast, but its transport activity was weaker than that of ZmHAK5. Overexpression of ZmHAKi in maize significantly affected K^+ distribution in shoots, leading to chlorosis in older leaves. These findings indicate that ZmHAKs and ZmHAKi play distinct roles in K^+ homeostasis in maize, functioning in K^+ uptake and K^+ distribution, respectively. Genetic manipulation of ZmHAK5 may represent a feasible way to improve K^+ utilization efficiency in maize. 展开更多
关键词 ZmHAK5 and ZmHAK1 FUNCTION in K^+uptake and DISTRIBUTION in MAIZE under low K^+conditions^FA ZmHAK5 and ZmHAK1 FUNCTION in K^+uptake DISTRIBUTION
南海永兴岛的壁虎,兼记二新记录种 预览
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作者 钱天宇 齐硕 +4 位作者 李丕鹏 陆宇燕 莫燕妮 杨振洲 刘武汉 《四川动物》 北大核心 2019年第2期179-184,共6页
2017年12月对南海永兴岛的爬行动物进行了短期调查,发现3种壁虎科Gekkonidae动物,分别是截趾虎Gehyra mutilata、原尾蜥虎Hemidactylus bowringii和疣尾蜥虎H. frenatus。其中,截趾虎和原尾蜥虎为中国南海岛屿的新记录。
关键词 壁虎 南海 岛屿 形态 分布
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Research on Prepreg Tape Cutting Platform with Two Cutters 预览
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作者 WEN Liwei HUANG Xiaochuan +2 位作者 QIN Lihua WANG Xianfeng LI Yong 《南京航空航天大学学报:英文版》 EI CSCD 2019年第3期442-448,共7页
The concept of cutting platform is proposed and realized based on the latest two step automated tape laying (Two step ATL)technology,which separates prepreg cutting process from tape laying to improve productivity for... The concept of cutting platform is proposed and realized based on the latest two step automated tape laying (Two step ATL)technology,which separates prepreg cutting process from tape laying to improve productivity for large parts with small features.Two step ATL is more efficient than conventional layup because ply patches are pre cut in a separate operation.The concept of the prepreg tape cutting experimental platform with two cutters is introduced.Further,based on the automatic tape laying trajectory planning software,a two cutter cutting algorithm is proposed.Cutting experiments are reported to validate both the concept of cutting platform and cutting algorithm. 展开更多
关键词 TWO STEP automated TAPE laying (Two STEP ATL) CUTTING PLATFORM with TWO cutters CUTTING algorithm cutter distribution
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乙烯利对苹果矮化砧T337幼苗硝态氮吸收、分配和利用的影响 预览
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作者 李秀丽 郑绪峰 +1 位作者 姜远茂 魏绍冲 《植物营养与肥料学报》 CAS CSCD 北大核心 2019年第7期1204-1210,共7页
【目的】本试验探究叶片喷施乙烯利对苹果矮化砧T337幼苗15N-NO3-吸收利用和分配的影响,为苹果生产中氮肥的合理施用提供科学依据。【方法】供试材料为T337幼苗,进行水培试验。幼苗先在NO3-浓度为10mmol/L的改良Hoagland营养液中预处理3... 【目的】本试验探究叶片喷施乙烯利对苹果矮化砧T337幼苗15N-NO3-吸收利用和分配的影响,为苹果生产中氮肥的合理施用提供科学依据。【方法】供试材料为T337幼苗,进行水培试验。幼苗先在NO3-浓度为10mmol/L的改良Hoagland营养液中预处理32天,然后饥饿培养7天,进行乙烯利处理试验。试验设叶面喷施乙烯利200μL/L (E1)和400μL/L (E2) 2个浓度,以喷清水为对照(CK)。分别于喷施后第0、4、8、12、16、20天取样测定幼苗的根系活力,根部和叶片中硝酸还原酶活性及谷氨酰胺合成酶活性;于第20天(试验结束),取样分析幼苗15N吸收、分配及利用率。【结果】各处理苹果矮化砧T337幼苗根系活力随处理时间延长呈现先升后降的趋势,在第8天均达到最大值,不同处理间差异显著。6次取样检测结果,E1、E2处理的幼苗根系活力均明显高于CK,E2处理又高于E1。不同处理幼苗根和叶片中硝酸还原酶和谷氨酰胺合成酶活性均在处理后第8天达到高峰。E1、E2处理的两种酶活性在处理后12天内高于对照,16~20天低于对照。对照和E1处理的幼苗叶片中硝酸还原酶活性在20天内一直高于同时期的根系,而E2处理只在12天内叶片硝酸还原酶活性高于根系,16天后根系高于叶片。E1处理叶片干重明显高于对照,E2处理根系和叶片干重分别比对照增加87.0%和28.8%,幼苗根冠比也显著高于对照。乙烯利能够明显提高幼苗氮肥利用率,促进氮素向幼苗根系部位分配。E1和E2处理15N利用率分别比对照高出3.44个百分点和15.32个百分点,根系15N分配率比对照分别高33.32%、67.40%。【结论】叶面喷施乙烯利可以影响幼苗根系及叶片中硝酸还原酶和谷氨酰胺合成酶活性,增加T337幼苗的生物量,提高根冠比;并且可显著提高幼苗对硝态氮的利用率,增大15N在幼苗根系中的分配率,其中以400μL/L乙烯利的处理效果最好。 展开更多
关键词 乙烯利 苹果矮化砧幼苗 NO3– 吸收 分配 利用
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杭州西湖风景区森林植被空间分布格局研究
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作者 叶琰迪 刘凤丹 胡广 《浙江理工大学学报》 2019年第3期407-412,共6页
根据卫星遥感数据,采用监督分类法对杭州西湖风景名胜区的植被类型进行判别,利用Fragstats软件计算各植被类型的空间景观特征,并结合典型植物群落样地获取物种组成信息,进行植被空间分布格局和植物物种多样性的分析,进而得到两者之间的... 根据卫星遥感数据,采用监督分类法对杭州西湖风景名胜区的植被类型进行判别,利用Fragstats软件计算各植被类型的空间景观特征,并结合典型植物群落样地获取物种组成信息,进行植被空间分布格局和植物物种多样性的分析,进而得到两者之间的关系。结果显示:西湖风景区内植被类型丰富度整体呈现出从湖滨向西部山区逐渐减少的趋势;环湖区域植被类型丰富,多以小斑块分布;西湖山区则以常绿阔叶林、针阔叶混交林为主要植被类型,并多以较大斑块分布。植被类型整体物种丰富度以落叶阔叶林为最高,常绿阔叶林为最低。在森林垂直结构中,以灌木层物种多样性最高,草本层次之,乔木层最低。 展开更多
关键词 植被类型 分布 西湖风景区 物种多样性
三条直线的截分及其关系:自由人联合体的分配模型 预览
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作者 赵学清 《中国浦东干部学院学报》 2019年第4期88-97,41共11页
《共产党宣言》《资本论》《哥达纲领批判》等著作从不同角度研究了自由人联合体的生产和分配。马克思关于自由人联合体的分配关系可以用三条直线——社会生产资料线、社会成员线和社会总产品线的截分及其相互关系来进行抽象的直观的描... 《共产党宣言》《资本论》《哥达纲领批判》等著作从不同角度研究了自由人联合体的生产和分配。马克思关于自由人联合体的分配关系可以用三条直线——社会生产资料线、社会成员线和社会总产品线的截分及其相互关系来进行抽象的直观的描述。社会生产资料线就是社会所有的生产资料的量,社会成员线截分为全体劳动者和全体不能劳动的社会成员,社会总产品线截分为生产资料和生活资料,具体表现为生产资料(社会扣除1)和生活资料(社会扣除2与全体劳动者按劳分配的生活资料之和)。社会总产品线截分的比例及其变动反映了社会整体利益、劳动者集体利益和劳动者个人利益之间的关系。自由人联合体的分配模型可以帮助人们更为直观地理解马克思的社会主义分配思想,可以为提出和理解初级阶段的生产和分配关系提供启示。 展开更多
关键词 分配 自由人联合体 《资本论》 《哥达纲领批判》
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我国医生和护士省际分布的公平性研究
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作者 林金银 雷海潮 《中国卫生经济》 北大核心 2019年第6期37-40,共4页
目的:评价中国医生、护士省际分布的公平性状况及变化趋势,为改善卫生资源规划相关政策提供依据。方法:采用基尼系数及公平性指数分析1978-2017年中国医生、护士分布公平性及其变化趋势。结果:全国31个省(自治区、直辖市)医生分布的基... 目的:评价中国医生、护士省际分布的公平性状况及变化趋势,为改善卫生资源规划相关政策提供依据。方法:采用基尼系数及公平性指数分析1978-2017年中国医生、护士分布公平性及其变化趋势。结果:全国31个省(自治区、直辖市)医生分布的基尼系数从1978年的0.188降至2017年的0.077,需要-资源公平指数由1.153降至1.024;护士分布的基尼系数从1978年的0.278降至2017年的0.077,需要-资源公平指数由1.450降至1.023。结论:改革开放以来,中国医生、护士省际分布的公平性持续改善,今后应当保持这一趋势,并采取多种方法监测评价卫生资源分布公平性的变化。 展开更多
关键词 医生与护士 人力资源配置 省际分布 公平性 基尼系数 公平性指数
2017年某医院病原菌分布及耐药性分析
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作者 贾进明 张细林 陈良善 《中国冶金工业医学杂志》 2019年第3期256-258,共3页
目的通过分析2017年莆田涵江医院住院部患者感染的病原菌分布及耐药情况,为临床使用抗生素提供指导。方法回顾性分析2017年8985份培养标本所分离出的病原菌及药敏试验结果。结果共分离出病原菌1161株,阳性率12.9%。其中革兰氏阴性菌807... 目的通过分析2017年莆田涵江医院住院部患者感染的病原菌分布及耐药情况,为临床使用抗生素提供指导。方法回顾性分析2017年8985份培养标本所分离出的病原菌及药敏试验结果。结果共分离出病原菌1161株,阳性率12.9%。其中革兰氏阴性菌807株,主要为大肠埃希菌、肺炎克雷伯菌、铜绿假单胞菌、鲍曼不动杆菌和阴沟肠杆菌。大肠埃希杆菌产超广谱β内酰胺酶(ESBLs)的为48株占20.5%、肺炎克雷伯杆菌为32株占16.6%。5种主要的革兰氏阴性菌对头孢他啶、替卡西林、头孢呋辛、哌拉西林的耐药性较高,对阿米卡星、亚胺培南、美洛培南、哌拉西林他唑巴坦较敏感。革兰氏阳性菌281株,主要为表皮葡萄球菌、金黄色葡萄球菌、粪肠球菌和肺炎链球菌。金黄色葡萄球菌和表皮葡萄球菌对青霉素、红霉素、苯唑西林、克林霉素、复方新诺明的耐药性普遍较高,对呋喃妥因、喹努普汀/达福普汀、米诺环素较敏感。未发现耐万古霉素的金黄色葡萄球菌和表皮葡萄球菌。肺炎链球菌对红霉素、克林霉素、复方新诺明耐药率为100%,对替考拉宁、万古霉素、四环素和喹努普汀/达福普汀均未见耐药菌株。结论加强耐药菌的监测,对临床用药有重大意义。 展开更多
关键词 病原菌 分布 耐药率 抗生素
西藏奥陶纪和志留纪海相红层的分布与时代 预览
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作者 李明 林宝玉 宋妍妍 《地球学报》 EI CAS CSCD 北大核心 2019年第3期428-446,共19页
本文对曾经考察过的西藏自治区主要研究剖面(即:聂拉木、定日、定结和申扎剖面)重新研究,参照国内已知的西藏奥陶纪和志留纪地层资料,对西藏地区奥陶系和志留系的海相红层进行系统研究。在西藏奥陶志留系中,识别出11层海相红层。其中,... 本文对曾经考察过的西藏自治区主要研究剖面(即:聂拉木、定日、定结和申扎剖面)重新研究,参照国内已知的西藏奥陶纪和志留纪地层资料,对西藏地区奥陶系和志留系的海相红层进行系统研究。在西藏奥陶志留系中,识别出11层海相红层。其中,在奥陶纪地层中识别出6层海相红层,在志留纪地层中识别出5层海相红层。已识别出的11层海相红层中,除奥陶纪青泥洞组海相红层(XORB1)属于深水大洋红层外,其它10层海相红层均属于浅水-半深水的陆棚红层。依据海相红层及其上下层位所含化石,本文初步讨论了各海相红层的大致时代,并与我国主要地区的同期海相红层进行了对比。 展开更多
关键词 奥陶纪 志留纪 海相红层 分布 对比 西藏自治区
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电子战系统中分布式数据同步技术 预览
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作者 龙界非 江果 +1 位作者 王朝 王洪鹏 《电子信息对抗技术》 2019年第3期48-52,88共6页
通过分析业界分布式数据同步技术的特点,结合电子战系统对数据同步的具体应用场景,提出一种电子战系统中跨专用网络的分布式数据同步技术方案,用于解决分布式存储技术及分布式计算技术应用于电子战系统时所遭遇的分布式一致性问题,并结... 通过分析业界分布式数据同步技术的特点,结合电子战系统对数据同步的具体应用场景,提出一种电子战系统中跨专用网络的分布式数据同步技术方案,用于解决分布式存储技术及分布式计算技术应用于电子战系统时所遭遇的分布式一致性问题,并结合典型场景的应用验证情况给出了相关的试验结果。 展开更多
关键词 电子战 分布式 数据同步 一致性
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佛山和广州女性宫颈细胞HPV基因分型分析 预览
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作者 唐菁娟 《医学信息》 2019年第12期139-141,共3页
目的调查佛山和广州两个地区女性HPV病毒感染情况和分型特点。方法选取2018年1月1日~12月31日广州和佛山送检医院在我检验中心进行检测的12571例由医院妇产科医生采集宫颈脱落细胞放入专用细胞保存液的取样管中送检标本,采用PCR-膜杂交... 目的调查佛山和广州两个地区女性HPV病毒感染情况和分型特点。方法选取2018年1月1日~12月31日广州和佛山送检医院在我检验中心进行检测的12571例由医院妇产科医生采集宫颈脱落细胞放入专用细胞保存液的取样管中送检标本,采用PCR-膜杂交法进行HPV基因分型检测,并分析其分布特征。结果12571例标本中HPV阳性者2559例,感染率20.35%,佛山和广州的HPV阳性率分别为:27.63%、17.12%;两地HPV高危型别阳性率排名前5的型别均为:51、52、58、53、16;不同阶段年龄组比较HPV感染率差异有统计学意义,两地均在≤20岁组和>50组阳性率高;两地女性HPV感染均以单一型别感染为主,单一型别感染占比佛山78.86%、广州72.94%。结论佛山和广州两地的HPV感染情况大致相同:两地女性人群HPV感染均以单一型别感染为主,感染高危型别集中在51、52、58、53、16五个型别,低龄化人群阳性率高。有必要进行HPV感染的预防和定期筛查工作。 展开更多
关键词 HPV感染 HPV基因分型 分布 广州 佛山
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广西橄榄种质资源分布及利用现状调查 预览
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作者 郝小玲 於艳萍 +5 位作者 宾振钧 荣涛 黄歆怡 檀业维 赵媛 单彬 《绿色科技》 2019年第15期172-174,共3页
以“第三次全国农作物种质资源普查与收集行动”为契机,通过查阅资料、实地走访等渠道,对广西全区橄榄种质资源分布、主栽优良品种、利用现状进行了摸底调查。依据调查结果,提出了加强广西橄榄种质资源保护开展的相关建议,以供参考。
关键词 橄榄 种质资源 分布 调查
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