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| 1 | 定量光导荧光技术评价含氟牙膏抑制早期龋损效果的临床研究显示文摘目的评价定量光导荧光技术(QLF)用于纵向监测光滑面早期龋损矿物质含量变化的能力及用于评价不同氟化物抑制早期龋损效果差异的可能性。方法选取305名11~14岁上颌前牙有早期光滑面龋的中小学生,随机分为NaF组、MFP组和不含氟组,分别采用含NaF的牙膏、含Na2PO3F的牙膏(氟浓度均为1450mg/L)和不含氟的牙膏刷牙。拍摄受检者上颌前牙光滑面早期龋损基线、刷牙后3个月和6个月时的QLF照片并保存。使用软件QLF2.00g对病损进行分析,界定病损范围,得出每次检查的△F(荧光损失)、Area(病损面积)和△Q(总荧光损失量)。结果296名(97.05%)受检者完成了整个研究。QLF检查结果显示,3个月时,296名受检者上颌前牙光滑面早期龋损均出现不同程度的好转,3组光滑面早期龋损Area、△F和lg△Q的变化均无统计学差异(P>0.05);6个月时,296名受检者上颌前牙光滑面早期龋损均较基线时出现明显的好转,NaF组、MFP组光滑面早期龋损Area、△F和lg△Q的变化有统计学差异(P<0.05),而NaF组与MFP组之间无统计学差异(P>0.05)。结论QLF作为一种定量诊断方法,能够用于纵向病变跟踪监测和评价不同龋病干预措施效果。 | 冯岩 尹伟 胡德渝 Yunpo Zhang Iain A. Pretty Roger P. Ellwood | 2008 | 华西口腔医学杂志2008，26，6： | 5 |
| 2 | Positive interactions can produce species-rich communities and increase species turnover through time显示文摘Aims The process of facilitation,where a species increases the survival,growth,and fitness of another species,is becoming increasingly recognized as a critical factor in shaping the structure of plant communities.This process is particularly important in stressful environments.Yet few studies have attempted to incorporate positive interactions into community ecological theories such as the neutral theory of biodiversity.Here,we use an equalizing trade-off model as a foundation to study the potential impact of facilitation on species richness and community temporal turnover.Methods Based on a spatially explicit birth–death trade-off model,we assume that the occurrence of facilitation is dependent on the presence of interspecific neighbours.We further propose that the realized birth rate for a given individual subject to facilitation is proportional to the number of interspecific neighbours within its neighbourhood.Thus,in our model,the individuals of rare species will benefit more from the existence of heterospecific individuals than common species.Important Findings As the facilitative coefficient increased,the species richness for simulated communities at the dynamically stochastic equilibrium was also increasing.Simulations also demonstrated that facilitation could increase the replacement of species through time:communities with facilitation become more dissimilar(i.e.have smaller Bray–Curtis similarity values)than communities without or with a lower degree of facilitation after the same time interval.Facilitation from interspecific neighbours on rare species increased their population sizes and consequently made them less prone to extinction,thus enhancing species richness.Meanwhile,in a saturated community,with the increase of species richness,mean population size of entire communities decreased,making species more prone to extinction on average,and thus increased the community temporal turnover.Our results suggest that future experimental work on the effect of facilitation on community-level properties should focus not just on species richness but also on other descriptors of community dynamics such as the temporal species turnover. | Youshi Wang M.D.Farnon Ellwood Fernando TMaestre Zhiyong Yang Gang Wang Chengjin Chu | 2012 | Journal of Plant Ecology2012，5，4： | 3 |
| 3 | Ultraviolet light absorber mobility in crosslinked coatings : Experiments and modeling显示文摘 | PETERS C A ELLWOOD K R SRIVASTAVA Y | 2007 | Progress in Organic Coatings2007，，58： | 1 |
| 4 | Anomalous magnetic properties in rocks containing the mineral siderite:Palaeomagnetic implications显示文摘 | Ellwood B B Balsam W Burkart B | | 0，，12： | 1 |
| 5 | Magnetosuscepti-bility event and cyclostratigraphy (MSEC) of the Eifelian-Givetian GSSP and associated boundary sequences in North Af-rica and Europe显示文摘 | Crick R E Ellwood B B E1 Hassani A | 1997 | Episodes1997，20，3： | 1 |
| 6 | Comparison of Paired Visual Assessment and Software Analyses of Changes in Caries Status over 6 Months from Fluorescence Images显示文摘 | Pretty IA Ellwood RP | 2007 | Caries Res2007，41，： | 1 |
| 7 | Diet and asthma:loo-king back, moving forward显示文摘 | Kim JH Ellwood PE Asher MI | 2009 | Respir Res2009，10，： | 1 |
| 8 | Spatial variation in the macrobenthic assemblages of intertidal seagrass along the long axis of an estuary显示文摘 | Barnes R S K Ellwood M D F | 2012 | Estuarine Coastal and Shelf Science2012，112，： | 1 |
| 9 | The Cluster mission:ESA’sspacefleettothemagnetosphere显示文摘 | Credland J Mecke G Ellwood J | 1997 | SpaceSciRev1997，79，12： | 1 |
| 10 | Mergers,Acquisitions,and the Pruning of Managerial Deadwood显示文摘 | Walsh J P Ellwood J W | 1991 | Strategic Management Journal1991，12，： | 1 |
| 11 | Comparison of Paired Visual Assessment and Software Analyses of Changes in Caries Status over 6 Months from Fluorescence Images显示文摘 | Pretty IA Ellwood RP | 2007 | Caries Res2007，41，： | 1 |
| 12 | Outcomes management: a technology of ex- perience显示文摘 | Ellwood PM | 1988 | N Engl J Med1988，318，23： | 1 |
| 13 | Are the iron carbonate minerals,ankerite,and ferroan dolomite,like siderite,important in paleomagnetism显示文摘 | Ellwood B B Burkart B Rajeshwar K | | 0，，6： | 1 |
| 14 | The magneto-susceptibility event and cyelostratigraphy ( MSEC ) method used in geological correlation of Devonian rocks from Anti-Atlas, Morocco 显示文摘 | Ellwood B B Crick R E Hassani E A | 1999 | AAPG Bulletin1999，83，： | 1 |
| 15 | Opinion:Integration of diagnostic and management persptectives for placenta accereta显示文摘 | Welsh A W Ellwood D Carter J | 2009 | Australian &New Zealand J Obstet & Gynaecol2009，，06： | 1 |
| 16 | Opinion:Integration of diagnostic and management perspectives for placentaaccreta显示文摘 | Welsh AW Ellwood D Carter J | | 0，，06： | 1 |
| 17 | Identification of QTL for reaction to three races of Colletotrichum trifolii and further analysis of inheritance of resistance in autotetraploid lucerne显示文摘 | J. M. Mackie J. M. Musial D. J. Armour H. T. T. Phan S. E. Ellwood K. S. Aitken J. A. G. Irwin | 2007 | Theoretical and Applied Genetics2007，，8： | 1 |
| 18 | Global correlation using magnetic susceptibility data from Lower Devonian rocks 显示文摘 | Ellwood B B Crick R E Garcia-Alcalde Fernandezjl | 2001 | Geology2001，29，7： | 1 |
| 19 | Tooth brushing What advice should be given to patients显示文摘 | Davies R Davies G Ellwood G | 2003 | British Dent al Journal2003，195，： | 1 |
| 20 | Opinion : Integration of diagnostic and management perspectives for placenta accreta显示文摘 | Welsh AW Ellwood D Carter J | 2009 | Australian & New Zealand J Obstet & Gynaecol2009，49，6： | 1 |
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