17 research outputs found

    一期翻修术治疗膝关节假体周围感染的疗效分析

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    目的探讨一期膝关节翻修术治疗膝关节假体周围感染的安全性及有效性。方法选取2015年1月~2018年6月厦门大学附属福州第二医院因膝关节假体周围感染接受一期膝关节翻修术的患者28例。收集患者的人口统计学资料、感染病原,并回顾性分析患者术前及术后KSS、HSS与OKS评分及影像学资料,评估膝关节假体周围感染接受一期膝关节翻修术的安全性及临床疗效。结果 28例接受一期膝关节翻修术的患者,男14例,女14例,平均年龄(65.3±10.1)岁,截止到末次随访,除1例患者死亡(死于心肌梗死)失访外,其余27例患者平均随访25.7个月(13~39个月),未发现假体松动及假体周围感染复发。患者术前KSS评分平均(34.19±13.00)分,末次随访时平均(76.37±16.46)分;术前HSS评分平均(36.03±13.39)分,末次随访时平均(71.24±16.39)分;术前OKS评分平均(16.62±3.47)分,末次随访时平均(27.43±6.02)分,差异有统计学意义(P <0.05)。结论在选择合适适应证情况下,膝关节置换术后假体周围感染的患者通过一期膝关节翻修术可以有效控制感染并重建膝关节功能。福建省自然科学基金项目(2017J01333

    2017年深圳市学校乙型/Yamagata系流感传播动力学研究及防控措施评价

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    目的 探讨2017年深圳市乙型Yamagata系(B/Y)流感在学校暴发疫情中的传播能力,评价疫苗接种和隔离措施的防控效果。方法 运用SEIAR动力学模型对暴发现场调查数据进行模拟,计算疫情的基本再生数(R0...福田区卫生公益性科研项目(No.FTWS20160051

    On Absolute Bases and Unconditional Bases

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    讨论绝对单调基、绝对基和绝对重排基之间的关系,以及绝对基与无条件基的关系,证明了在实空间中,绝对基与1-无条件基是等价的,在复空间中则不然.Discusses the relations of absolute monotone bases,absolute bases and absolute rearrange bases,and discusses the relations of absolute bases and unconditional bases.Proves that absolute bases and 1-unconditional bases are equivalent in real spaces,but it isn't true in complex spaces.福建省教育厅基金资助项目(JA05211JB06026

    On Ka Operator and the Second Kato Spectra

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    给出Ka算子的定义,讨论N(Ta)与R(Tb)的关系,得到闭子空间Y在T作用下的象T(Y)成为闭子空间的一些条件,进而证明当T∈Φ+(X)时,从R∞(T)到R∞(T)的算子T|R∞(T)是个满射,同时证明当N(T)■R∞(T)时,T|R∞(T)也是个满射,从而说明当T是Ka算子时,T|R∞(T)是个满射;给出第二Kato谱σ′k(T)的定义,证明了σ′k(T)是C中的非空紧子集,也证明了σ′k(T)=σ′k(T*),并讨论σ′k(T)的一些性质以及σ′k(T)与一些常见的本性谱的关系,说明σd(T)■σ′k(T)■σ(T)、σ′k(T)\σB(T)≠Φ、σe(T)\σ′k(T)≠Φ、σ′k(T)■σa(T)∩σsu(T),而且说明当TS=ST时,若TS∈Ka(X),则T∈Ka(X)且S∈Ka(X).The definition of Ka operator is given.The relations between N(Ta) and R(Tb) is discussed.Some conditions which makeT(Y) become a closed subspace for a closed subspace Y is obtained.And the conditions are considered such that the operator T|R∞(T)from R∞(T) to R∞(T) is surjective,it is proved that if T∈Φ+(X) or N(T)■R∞(T),then T|R∞(T) is surjective.So there is a corollary that if T is a Ka operator,then T|R∞(T) is surjective.Based on the definition of Ka operator,the definition of the second Kato spectra σ′k(T) is given.It is proved that σ′k(T) is a nonempty compact subset of C,and σ′k(T)=σ′k(T).And the relations between σ′k(T) and some essential spectra is discussed,it is showed that σd(T)■σ′k(T)■σ(T),σ′k(T)σB(T)≠,σe(T)σ′k(T)≠,σ′k(T)■σa(T)∩σsu(T).It is also showed that if TS=ST and TS is a Ka operator,then T and S are all Ka operators.国家自然科学基金(10471025,10771034);; 福建省自然科学基金(S0650009);; 福建省教育厅基金(JA05211,JB06026);; 福州大学科技发展基金(2007-XY-11)资

    The Development Trend of Higher Education in the Era of Big Data

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    现代信息技术的发展和应用催生了大数据时代,给高等教育带来了新的机遇和挑战。海量的数据、多样的数据种类以及快速的数据分析,促使高等教育迅速转型,呈现出新的发展趋势。市场的介入,促使高等教育资源配置由高校一元垄断模式逐渐转变为多元不确定模式;教学方式的变革,推动教师角色与职能的多样化;高等教育资源的全球化,促使单一校园服务模式逐渐转变为全方位立体服务模式;海量数据库的构建,推动高校管理的科学化;学习渠道的不断拓宽,推动学习者身份的多元化和学习观念的改变。The development and application of information technology have led to the era of big data,which brings new opportunities and challenges to higher education.Massive data,a variety of data types and fast data analysis promote rapid transformation in higher education.The intervention of market propels the provision model of higher education resources from monopolized by university gradually to multi-factors uncertain model.The reform of teaching methods promotes the diversification of teacher's role and function.The globalization of higher education resources prompts the single campus service mode gradually to transform into multi-faceted service mode; the construction of massive database facilitates the management of colleges and universities to become more scientific.And the continuous expansion of learning channels drives the diversification of learner'identity and the change of learning ideas

    Shelter Preference of Megalopae and First Juvenile of Mud Crab,Scylla paramamosain(Estampador,1949)

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    【中文摘要】 采用实验生态方法,以攀附率为指标,研究了青蟹大眼幼体和第Ⅰ期仔蟹对不同材质(棉布、尼龙筛绢、PVC和竹木)、放置方式(水平或垂直)和构型(3种结构×3种规格)隐蔽物的选择性.结果表明:大眼幼体和仔蟹对各种隐蔽物材质选择差异不显著(p>0.05),对垂直放置隐蔽物的选择性显著高于水平放置者(p<0.01),对不同结构(草丛型、洞穴型和折角型)和不同规格(5,7和10 mm)隐蔽物选择差异均极显著(p<0.01).其中,对草丛型、洞穴型和折角型隐蔽物的选择性依次降低,对5,7和10 mm隐蔽物的选择性也依次降低.随着规格增大,大眼幼体和仔蟹对草丛型隐蔽物的选择性下降幅度最大,对5 mm草丛型隐蔽物的攀附率为30.92%和25.9%,对10 mm草丛型的仅为0.46%和1.4%.综上所述,在研制或使用青蟹大眼幼体和仔蟹的隐蔽物时,材质选择主要应考虑耐腐蚀、对水质无不良影响、不易钩挂幼体和仔蟹附肢等因素.隐蔽物的结构以草丛型为佳,当其亚结构的最小空隙接近大眼幼体或仔蟹全长时,应可达到最好的使用效果. 【英文摘要】 There are two important stages in the development process of mud crab Scylla paramamosain:megalopae and first juveniles.In the present study,the two stages of S.paramamosain were collected to investigate their preferences of different materials(cloth,net,PVC and bamboo sheet),layouts and conformations(3 structures × 3 sizes) shelters by employing experimental ecological methods based on the index of sheltering rates.The results showed that there was no obvious preference of different materials for megalopae...国家863计划项目(2006AA10A406)资

    Thermal tolerance of Marsupenaeus japonicus compared with that of Litopenaeus vannamei and Exopalaemon carinicauda

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    为构建日本囊对虾(MArSuPEnAEuS JAPOnICuS)耐高温性状的评价体系,全面了解日本囊对虾的耐热性状,本研究首先采用耐热性(uPPEr THErMAl TOlErAnCE,uTT)作为评定指标,开展不同规格日本囊对虾耐热性状的分析;进一步结合临界温度法(CrITICAl THErMAl METHOdOlOgy,CTM)将日本囊对虾与脊尾白虾(EXOPAlAEMOn CArInICAudA)、凡纳滨对虾(lITOPEnAEuS VAnnAMEI)进行了耐热性状的种间比较。结果显示:(1)不同大小的日本囊对虾个体之间耐热性(uTT)存在差异,其体重与耐热性之间呈负相关,相关系数为-0.142(P<0.05),特别是日本囊对虾仔虾(0.01 g)耐热性显著高于较大规格(1~5 g)的日本囊对虾(P<0.05);(2)受高温刺激,3种虾表现出不同的应激行为,凡纳滨对虾的开始死亡温度与死亡高峰温度最高,日本囊对虾次之,脊尾白虾最低;(3)3种虾的耐热性状存在明显差异,凡纳滨对虾的平均uTT值最高,日本囊对虾次之,脊尾白虾的最低(P<0.01);(4)凡纳滨对虾的临界高温(CrITICAl THErMAl MAXIMuM,CTMAX)最高,日本囊对虾次之,脊尾白虾最低(P<0.05),即与uTT的比较结果一致。本研究为日本囊对虾耐高温品系选育提供了基础科学依据。Relatively high mortality has become a problem during Marsupenaeus japonicus culture in the summer in southern China.Thus, it is necessary to evaluate the thermal tolerance of M.japonicus.The upper thermal tolerance trait(UTT) was determined to evaluate thermal tolerance of different sizes of M.japonicus.We combined the UTT with critical thermal methodology to compare thermal tolerance among three species, such as M.japonicus, Exopalaemon carinicauda, and Litopenaeus vannamei.We observed their behavior under gradually changing temperature and compared the lethal index.A correlation analysis revealed a correlation coefficient of-0.142 between body weight and the UTT of M.japonicus.The UTT of juveniles(<0.01 g) was significantly higher than that of the group weighing 1–5 g(P<0.05).The three species responded differently to high temperature: temperatures for initial mortality and climax mortality of L.vannamei were highest, whereas those for E.carinicauda were the lowest.The mean UTT and critical thermal maximum of L.vannamei were highest, followed by those of M.japonicus and E.carinicauda(P<0.05).In conclusion, the thermal tolerance of M.japonicus was lower than that of L.vannamei but higher than that of E.carinicauda.These results are important data for a comprehensive understanding of M.japonicus thermal tolerance and have practical applications for selecting high-temperature resistant strains.国家虾产业技术体系岗位专家项目(CARS-47); 厦门市南方海洋中心项目(14CZY033HJ07); 福建省海洋高新产业发展专项项目(闽海洋高新[2014]12号

    国产合瓣花植物名称的后选模式指定——Ⅲ.玄参科、紫葳科和苦苣苔科(英文)

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    在整理保存于中国科学院植物研究所中国国家植物标本馆(PE)的国产合瓣花植物模式标本时,根据《国际藻类、菌类、植物命名法规》(墨尔本法规)规则9.5,发现在玄参科中的阿拉善马先蒿、中国马先蒿、反曲马先蒿、红毛马先蒿、粗野马先蒿、扭旋马先蒿和四川婆婆纳、在紫葳科中的密生波罗花、角蒿、烟色叶角蒿和黄花角蒿、在苦苣苔科中的东川粗筒苣苔、滇川唇柱苣苔和羽裂全盏苣苔名称的模式为合模式。遵照规则8.1、9.11和9.12,以及辅则9A.3的精神,对这14个名称做出后选模式指定

    国产合瓣花植物名称的后选模式指定——Ⅱ.报春花科、龙胆科、马鞭草科、唇形科(英文)

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    在整理保存于中国科学院植物研究所中国国家植物标本馆(PE)的国产合瓣花植物模式标本时,根据《国际藻类、菌类、植物命名法规》(墨尔本法规)规则9.5,发现在报春花科中的小点地梅、羽叶点地梅和狭萼报春,龙胆科中的福建龙胆、云雾龙胆、大花深红龙胆、管花秦艽、五台山龙胆和四数獐牙菜,马鞭草科中的三花莸,唇形科中的白苞筋骨草、甘青青兰、血盆草和宽苞峨眉鼠尾草名称的模式为合模式。遵照规则8.1、9.11和9.12,以及辅则9A.3的精神,对这14个名称做出后选模式指定

    Study on the substratum preference of the mud crab,Scylla paramamosain,in stage of megalopa and first juvenile

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    【中文摘要】 拟穴青蟹大眼幼体和仔蟹对海泥和泥沙底质的选择性显著高于各种粒径的沙底(粒度0.06~2.00mm).其原因可能与海泥和泥沙底质在流动海水中物理稳定性高于沙砾有关.通过以埋栖选择性和相对埋栖率为指标考察了大眼幼体和仔蟹的栖息方式,发现白昼大眼幼体埋栖在底质中的比例显著高于夜间,也高于仔蟹;夜间大眼幼体栖息方式与仔蟹差别不明显;并发现大眼幼体栖息方式存在着昼夜差异和昼夜节律性.这揭示了拟穴青蟹大眼幼体对底质的选择性和在底质上栖息的方式表现出对FTT机制的适应. 【英文摘要】 The settlement mode of the mud crab(Scylla paramamosain) megalopa and juveniles were studied by observing the frequency of burrowing-in or settling-on the surface of substrata.It shows that the mud crab preferred to habitat the mud or mud/sand substratum much than the sand substrata of 3 granular sizes(0.06~2.00mm).The difference is possibly due to the physical stability of mud or mud/sand substratum rather than the unstable sand by the current.The burrowing-in preference and relative burrowing rate of the ...国家海洋863计划资助项目(2006AA10A406
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