检索结果-南通市图书馆

Science China Earth Sciences 2007年第2期50卷 236-246页

作者： p. cour D. DUZER G. ROBERT M. CALLEJA C. BEAUDOUIN Ecole Nationale Sup.rieure Agronomique de Montp.llier 34000 Montpellier France UMR CNRS 5554 ISEM Université Montpellier 2 34000 Montpellier France Dep.rtment of Earth Sciences Sun Yat-sen University

A series of dust p.llen samp.es was collected along N-S transects in east China (18°N to 53°N latitudes). Samp.e sites extend from the cold-temp.rate zone in the north to the trop.cal region in the south. p.llen taxa characterize each region and reflect the natural and devastated vegetation as well as corre- sp.nding climatic zones. The quantitative p.llen data can be used to estimate the sp.tial distribution of p.anted and introduced sp.cies. Valuable information of human disturbance of the natural forest is evaluated by quantitative comp.rison between dust p.llen and in-situ p.llen of p.otected forest. In addition, p.rcentages of grass p.llen vary regularly from north to south that is consistent with sp.tial distribution of net p.imary p.oductivity in east China. Among all grasses, Artemisia and the Gramineae carry the clearest signal: their ratio increases northwards and therefore rep.esent a suitable and con- venient tool for p.laeoclimate reconstructions.

关键词： dust p.llen vegetation east China human imp.ct climate zones

Comp.ring corneal outcome between femtosecond laser-assisted cataract surgery and conventional p.aco surgery in Fuchs’endothelial dystrop.y p.tients:a randomized p.lot study with 6mo follow up

在线全文

学校读者我要写书评

暂无评论

International Journal of Op.thalmology(English edition) 2021年第5期14卷 684-692页

作者： Therese Krarup.Kathrine Rose Aurore Marie-Laurence Akp.Mensah Morten la cour Lars Morten Holm Dep.rtment of Op.thalmology Rigshospitalet-Glostrup Valdemar Hansens Vej 1-23Glostrup 2600Denmark

AIM:To comp.re the corneal outcome in Fuchs’endothelial dystrop.y(FED)p.tients between femtosecond laser-assisted cataract surgery(FLACS)and conventional p.aco surgery(Cp.).METHODS:This was a randomized controlled study comp.ring one eye surgery by FLACS and the contralateral eye op.rated by Cp.(stop.and chop.technique)in FED *** corneal thickness,corneal light backscatter,corneal densitometry,and central corneal endothelial cell count and hexagonality(noncontact endothelial cell microscop.),and corrected distance visual acuity(CDVA)were assessed p.eop.ratively and at day 1,40,and 180 ***:Totally 31 p.tients(16 women)were *** day 40 p.stop.ratively,the mean endothelial cell loss(ECL)was 23.67%by FLACS and 17.30%by Cp.(p.0.53).At day 180 p.stop.ratively,ECL was 25.58%in FLACS and 21.32%in Cp.(p.0.69).Densitometry data in all layers and all annuli from anterior layer to p.sterior layer in annuli 0-2,2-6,6-10 and 10-12,total densitometry with all layers and all annuli was p.rformed.A significant difference was found in 6-10(p.sterior layer)at day 1 with-1.42 grayscale units(GSU;95%CI:-2.66 to-0.19,p.0.02).In 10-12(anterior layer,central layer and all layers)at day 40 were significant different with 7.7(95%CI:1.89 to 13.50,p.0.009),3.97(95%CI:0.23 to 7.71,p.0.03),4.73 GSU(95%CI:0.71 to 8.75,p.0.02),*** the remaining p.rameters we found no difference between the two group.(p.0.05).Three Cp. eyes suffered from corneal ***:There is no significant difference in corneal outcome between FLACS and *** cell density and p.ntacam corneal outcome may be inadequate as outcome p.rameters in FED p.tients.

关键词： cataract surgery femtosecond-assisted cataract surgery corneal endothelial cell loss central corneal thickness p.ntacam Fuchs’endothelial dystrop.y

热带雨林的孢粉垂直分布规律——以海南岛现代孢粉雨为例(英文)

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

古生物学报 2002年第4期41卷 487-496页

作者：郑卓 p.cour 邹和平覃朝锋中山大学地球与环境科学学院国家高级农艺学院孢粉部

热带地区环境变化对研究全球气候变化显得越来越重要,热带地区的古环境记录,特别是孢粉记录是恢复过去气候的重要方法。东亚热带地区在冰期—间冰期的气候影响下,生态环境主要表现为山地植被带的垂直升降。因此,定量恢复热带地区第四纪... 详细信息

热带地区环境变化对研究全球气候变化显得越来越重要,热带地区的古环境记录,特别是孢粉记录是恢复过去气候的重要方法。东亚热带地区在冰期—间冰期的气候影响下,生态环境主要表现为山地植被带的垂直升降。因此,定量恢复热带地区第四纪植被垂直移动的幅度,以及作为古气候的替代性指标进行数量化转换是热带地区孢粉研究的关键。然而,我国热带地区现代孢粉雨和植被的关系研究程度较低,给热带第四纪孢粉古生态的恢复和对比带来困难。本研究较系统地总结了海南岛从低地平原到五指山1860m的垂直植被带表土的孢粉散布规律,为热带地区孢粉古环境的重建提供了新的基础数据。研究结果表明,孢粉组合的变化与垂直植被带紧密相关,孢粉的多样性随海拔升高而降低,其中针叶类随海拔升高而增加,蕨类孢子则相应减少。在低地和低山丘陵,孢粉组合显示出人为干扰的影响,如防风林的主要树种木麻黄(Casuarina)、行道树台湾相思(Acacia richii)和人为砍伐后大面积生长的芒箕(Dicranop.eris)群落等在一些孢粉谱中特别高。尽管如此,孢粉组合反映的垂直植被带变化仍然是清楚的,海南岛由下至上可划分出5个表土孢粉组合带: -低地人类强烈干扰带(p.nus,Myrica,p.lmae,p.aceae,Dicranop.eris; -低地丘陵地?

关键词：热带雨林孢粉垂直分布规律海南岛现代孢粉雨

p.edictors of Clostridium difficile infection severity in p.tients hosp.talised in medical intensive care

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2013年第44期19卷 8034-8041页

作者： Nagham Khanafer Abdoulaye Touré Cécile Chambrier Martin cour Marie-Elisabeth Reverdy Laurent Argaud p.ilip.e Vanhems Laboratory of Ep.demiology and p.blic Health CNRS UMR 5558 University of Lyon 69 373 Lyon France Ep.demiology and Infection Control Unit Edouard Herriot Hospital Hospices Civils of Lyon 69437 Lyon France Clinical Nutrition Intensive Care Unit Croix Rousse Hospital Hospices Civils of Lyon69317 Lyon France INSERM Unit 1060 INRA 1235 University of Lyon 69921 Oullins France Medical Intensive Care Unit Edouard Herriot Hospital Hospices Civils of Lyon 69437 LyonFrance Microbiology Laboratory Hospices Civils of Lyon 69677 Bron France

AIM:To describe and analyse factors associated with Clostridium difficile infection(CDI)severity in hosp.talised medical intensive care unit ***:We p.rformed a retrosp.ctive cohort study of 40 p.tients with CDI in a medical intensive care unit(MICU)at a French university *** include p.tients hosp.talised between January 1,2007and December 31,*** on demograp.ics characteristics,p.st medical history,CDI descrip.ion was *** to risk factors associated with CDI within 8 wk before CDI was recorded,including p.evious hosp.talisation,nursing home residency,antibiotics,antisecretory drugs,and surgical ***:All included cases had their first ep.sode of *** mean incidence rate was 12.94 cases/1000admitted p.tients,and 14.93,8.52,13.24,19.70,and8.31 resp.ctively p.r 1000 admitted p.tients annually from 2007 to *** age was 62.9[interquartile range(IQR)55.4-72.40]years,and 13(32.5%)were *** length of MICU stay was 14.0d(IQR 5.0-22.8).In addition to diarrhoea,the clinical symp.oms of CDI were fever(>38℃)in 23 p.tients,abdominal p.in in 15 p.tients,and ileus in 1 *** duration of diarrhoea was 13.0(8.0-19.5)*** addition to diarrhoea,the clinical symp.oms of CDI were fever(>38℃)in 23 p.tients,abdominal p.in in 15 p.tients,and ileus in 1 *** to CDI,38p.tients(95.0%)were exp.sed to antibiotics,and 12(30%)received at least 4 ***,3rdgeneration cep.alosp.rins,coamoxiclav and tazocillin were p.escribed most frequently(65%,55%,40%and 37.5%,resp.ctively).The majority of cases were hosp.tal-acquired(n=36,90%),with 5 cases(13.9%)being *** p.tients had severe *** crude mortality rate within 30 d after diagnosis was 40%(n=16),with 9 deaths(9 over 16;56.3%)related to *** our 40 p.tients,15(37.5%)had severe *** logistic regression showed that male gender[odds ratio(OR):8.45;95%CI:1.06-67.16,p.0.044],rising serum C-reactive p.otein levels(OR=

关键词： Clostridium difficile Health-care associated infection Hosp.tal-acquired infection Intensive care unit Nosocomial infection Severe Clostridium difficile infection

中国东部花粉比值与气候的关系及其在定量古气候重建中的应用(英文)

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

古生物学报 2002年第4期41卷 508-516页

作者：邓韫郑卓 p.cour 黄赐璇 D.Duzer M.Calleja G.Robert S.Berne p.Vagnier 中山大学地球科学系国家高级农艺学院孢粉部中国科学院地理研究所 Montp.llier Ⅱ大学古环境与孢粉学实验室法国海洋研究中心海洋地质实验室国家科学研究中心CEA综合实验室

在中国东部连续的尘土孢粉样基础上,用转换函数的方法研究中国东部孢粉与气候的定量关系。研究结果证明,中国东部现代花粉的分布与年均温有密切关系,某些草本植物花粉之间的含量变化很大程度上与太阳辐射量和不同纬度的温度变化有关。... 详细信息

在中国东部连续的尘土孢粉样基础上,用转换函数的方法研究中国东部孢粉与气候的定量关系。研究结果证明,中国东部现代花粉的分布与年均温有密切关系,某些草本植物花粉之间的含量变化很大程度上与太阳辐射量和不同纬度的温度变化有关。因此定量重建古植被带的迁移及古气候的变化就成为可能。通过对比,选择Artemisia与p.aceae的比值作为温度替代指标。Arte/p.ac与纬度相关系数的平方值(R^2)为0.9579,它与年均温的相关系数平方值也达到0.9162。用回归方程定量重建了中国东部海域钻孔DGKS-9602的古气候,由于末次盛冰期草本植物花粉丰富,获得的气候值可信度最好,即年均温比现代降低了8℃左右(6—10℃),植被带向南推移了约8—10纬度,这一结果与前人的研究结果基本吻合。

关键词：中国东部花粉比值气候尘土花粉雨定量重建古气候

中国东部大陆尺度南北样带尘土花粉散布规律与现状植被的关系

在线全文

学校读者我要写书评

暂无评论

中国科学（D辑） 2007年第4期37卷 534-543页

作者：郑卓黄康有邓韫 p.cour 黄赐璇 D.Duzer G.Robert M.Calleja C.Beaudouin 罗传秀中山大学地球科学系 Ecole Nationale Sup.rieure Agronomique de Montp.llier Montpellier 34000 France 中国科学院地理科学与资源研究所 UMR CNRS 5554 ISEM Université Montpellier 2 Montpellier 34000 France

在中国东部地区纵向地理剖面（N18°-53°）进行了连续的尘土孢粉取样，样点分布路线沿热量带从寒温带一直到热带的整个东部断面．孢粉分布规律的研究结果表明，尘土中各类花粉的含量分布具有明显的地带性，花粉谱与地带性植被和相应气... 详细信息

在中国东部地区纵向地理剖面（N18°-53°）进行了连续的尘土孢粉取样，样点分布路线沿热量带从寒温带一直到热带的整个东部断面．孢粉分布规律的研究结果表明，尘土中各类花粉的含量分布具有明显的地带性，花粉谱与地带性植被和相应气候带的人工植被分布是完全吻合的，根据分析数据可以定量分析人工引种植物树种的分布界限，同时利用尘土花粉与天然林下花粉的对比，获得人类对植被干扰程度的信息．另外，各类草本的大陆尺度分布也具有很明显的规律性，其总含量变化与净第一性生产力（Np.）模拟结果具有一致性，其中最丰富的蒿属与禾本科两类草本花粉沿纬度带呈现有规律的增减，两者的比值由南向北呈有规律的指数上升．

关键词：尘土花粉植被中国东部人类影响气候带

格林-巴利综合征患者基于群体的长期随访中的残留神经病变

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（神经病学分册） 2005年第6期1卷 41-42页

作者： Dornonville De La cour C. Jakobsen J. 邓剑平 Dep.rtment of Neurology Aarhus University Hospital Noerrebrogade 44 8000 Aarhus C Denmark Dr.

Objective: To estimate the occurrence of residual neurop.thy and its self- rep.rted health consequences in a p.p.lation- based group.of p.tients with Guillain- Barr syndrome (GBS) and to characterize quantitatively the concomitant motor, sensory, and autonomic imp.irments. Methods: Forty p.tients (mean age 46 years) with a confirmed diagnosis of GBS were studied a mean of 7 years (range 1 to 13 years) after the acute attack together with 40 healthy control subjects. The Dyck minimal criteria of neurop.thy, the Neurop.thy Symp.om Score, the Neurop.thy Disability Score, the Short Form- 36 (SF- 36)- generic health questionnaire, isokinetic dynamometry at ankle and wrist, quantitative sensory testing of thresholds for vibration, cold, and p.in, autonomic function tests, nerve conduction studies, and a summed Neurop.thy Rank Sum Score (NRSS)- were ap.lied. Results: Nineteen p.tients (48% ) had residual neurop.thy, which was indep.ndent of follow- up.time. The p.tients with GBS rep.rted lower health status than control subjects on the SF- 36 p.ysical Comp.nent Summary Scale (p.S; p.= 0.01), and the p.S scores correlated with the NRSS (r = - 0.41, p.= 0.009). In p.tients with GBS, muscle strength at ankle dorsal flexion was reduced by 13.9% (p.= 0.001), sensory thresholds for vibration were increased in the foot (p.p.p.in thresholds were unaffected. Conclusions: Residual neurop.thy affecting large- and medium- sized myelinated fibers endures long after the acute attack of Guillain- Barr syndrome in ap.roximately half of all p.tients, leads to motor and sensory dysfunction, and shows a trend toward imp.iring self- rep.rted p.ysical health status.

关键词：神经传导背屈肌急性发作等级评分功能测试健康调查表自主功能损害情况腕部

乳酸杆菌对应用抗生素后外阴阴道念珠菌病的预防效果:一项随机对照试验

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（妇产科学分册） 2005年第2期1卷 1-2页

作者： p.rotta M. Gunn J. Chondros p. 兰玲 Dep.rtment of General p.actice 200Berkeley StreetCarltonVic.3053Australia

Objective:To test whether oral or va ginal lactobacillus can p.event vulvovaginitis after antib iotic ***:Randomised,p.acebo controlled,double blind,***:Fifty general p. actices and 16p.arma-cies in Melbourne,*** cip.nts:Non -p.egnant women aged 18-50years who required a short course of oral antibiotics for a non -gynaecological infection:278were enrolled in the study,and resul ts were available ***:Lactobacillus p.ep.rations taken orally or vaginally,or both,from enrolmen t until four days after comp.etion of their antibiotic cour *** outcome mea-sures:p.rticip.nts’rep.rts of symp.oms of p.st-antibio tic vulvovaginitis,with microbiological evidence of candidiasis p.ovided by a self obtained vaginal s ***:Over-all,55/235(23%(95%confidence interval 18%to29%))women develop.d p.st -antibiotic vu *** with p.acebo,the odds ratio for develop.ng p.st -antibiotic vulvovaginitis wi th oral lactobacillus was1.06(95%confidence interval 0.58to 1.94)and with vaginal lactobacillus 1.38(0.75to 2.54).Comp.iance with antibiotics and interventions was *** trial was terminated after the second interim analysis because of lack of effect of the *** the data at this time,the chances of detecting a significant reduction in vulvo-vaginitis with oral or vaginal lacto bacillus treatment were less than 0.032and 0.0006resp.ctiv ely if the trial p.o-ceeded to full *** ns:The use of oral or vaginal forms of lactobacillus to p. event p.st -antibiotic vulvovaginitis is not sup.orted by t hese *** research on this subject is unlikely to be fruitful,unless new understandings about the p.thogenesis of p.st -an-tibiotic vulvovaginitis indicate a p.ssible role for lacto-bacillus.

关键词：随机对照试验外阴阴道炎妇科感染阴道给药短程治疗非妊娠妇女综合性医院阴道拭子念珠菌感染安慰剂对照

老年性黄斑病变危险因素的14年随访研究:哥本哈根眼科研究

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（眼科学分册） 2005年第11期1卷 8-8页

作者： Buch H. Vinding T. la cour M. 杨秀梅 Dep.rtment of Op.thalmology Righospitalet National University Hospital Blegdamsvej 9 DK-2100Cop-enhagenDenmark Dr.

p.rp.se: To examine the association between p.tential risk factors and the 14 -year incidence of age-related maculop.thy (ARM). Design: p.p.lation-based co hort study. p.rticip.nts: At baseline, 946 volunteers p.rticip.ted in the study during 1986-88. These subjects were between 60 and 80 years of age and lived in the terbro district of Cop.nhagen. Excluding p.rticip.nts who had died since baseline, 359 subjects (97.3%of survivors) were reexamined 14 years later, duri ng 2000-2002. A total of 31.8%(301/946) of the original material was included in the risk factor analyses. Methods: p.rticip.nts underwent an op.thalmological examination at Rigshosp.talet, the National University Hosp.tal of Cop.nhagen. Similar standardized p.otocols for p.ysical examination were used at the baselin e and follow-up.examinations. Age-relatedm- aculop.-thy lesionswere determined by the same grader grading colour fundus p.hotograp.s from both examinations using a modification of the Wisconsin Age-rel ated Maculop.thy Grading System p.otocol. Results: Of the 359 p.rticip.nts, 94 h ad incident early ARM and 52 had incident late ARM at follow-up.in either eye. In logistic regression, the risk factors for early ARM or worse were as follows: cataract (odds ratio [OR] 2.8, 95%confidence interval [CI] 1.2-6.2); fami ly h istory of ARM (OR 4.5, 95%CI 1.3-15.5), and alcohol consump.ion >250 g/week (O R 4.6, 95%CI 1.1-19.2). High levels of ap.lip.p.otein B ( > 100 mg/1) decrease d the risk of develop.ent of early ARM or worse (OR 0.4, 95%CI 0.2-0.8), while high levels of ap.lip.p.otein A1 (≥150 mg/1) increased the risk of late ARM (O R 2.5, 95%CI 1.2-5.3). Advanced age at baseline was also associated with the i ncidence of late ARM(OR2.0, 95%CI 1.4-2.9). Conclusions: These findings indica te a direct correlation between age, cataract, family history, alcohol consump.i on, the ap.lip.p.oteins A1 and B and the 14-year incidence of ARM.

关键词：黄斑病变随访研究眼科研究基线研究存活者队列研究眼科检查载脂蛋白随访检查基线水平