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6篇 您的检索式:作者名="Isabel Fraga"
    题名 作者 年代 出处 被引量
1High-resolution patterns of palaeoenvironmental changes during the Little Ice Age and the Medieval Climate Anomaly in the northwestern Iberian Peninsula显示文摘to identify plant macrofossils,estimate peat humification and calculate hydroclimatic indices based on current bog species,with the overall aim of determining the climate conditions associated with evolution of the bog during the Medieval Climate Anomaly and the Little Ice Age.These proxies,together with historical and climate data,proved to be good indicators of the changes in bog surface wetness.Analysis:of the core led to identification of 9 different periods:two corresponding to the so-called Medieval Climate Anomaly(930 to 1345 AD,1075–665 calibrated years before present[cal.yr BP]);four corresponding to the Little Ice Age(1345 to 1905 AD;665–105 cal yr BP);and three corresponding to the last century(1905 to 2000 AD).The findings revealed a generally dry climate that lasted until the 14th century,followed by a transition to a long period with a more humid,but characteristically very variable climate,which ended at the beginning of the 20th century and was followed by a rapid transition to more humid conditions and finally,a change to drier conditions.The Medieval Climate Anomaly was indicated by the abundance of dry-adapted mosses(Leucobryum glaucum,Hypnum cupressiforme)and characterized by warm dry conditions and high levels of peat humification,with alternating wet phases.The LIA period was dated by a large abundance of Sphagnum species(an indicator of wetness)and a gradual increase in the humification index.However,four different climate phases were differentiated in this period.High-resolution reconstruction of the evolution of the CVM bog and the multiproxy approach have together enabled a more detailed identification of climatic variations in this area,which are generally consistent with the global models,as well as better definition of the elusive climatic oscillations in the last millennium and confirmation of the importance of local modulation of global models.The study provides new information and a detailed chronology of climatic events that will help to refine local modulation of the climate evolution model in the still quite unexplored region of the NW Iberian Peninsula,a key area for understanding the paleoclimatic dynamics in SW Europe.Daniel Castro Martin Souto Maria Isabel Fraga Eduardo Garcia-Rodeja Sebastian Perez-Diaz Jose Antonio Lopez Saez Xabier Pontevedra-Pombal 2020Geoscience Frontiers2020,11,5:2
2Adverse hepatic reactions associated with calcium carbimide and disulfiram therapy: Is there still a role for these drugs?显示文摘四乙秋兰姆化二硫和钙 carbimide 是二白酒威慑然而,广泛地在那里在酒精中毒治疗使用的狂言存在对他们的安全的大担心。hepatotoxicity 上的报告主要与四乙秋兰姆化二硫治疗有关,被出版了。钙 carbimide 的肝毒素的潜力是很好描绘的更少。这里,我们描述与被提交到 hepatotoxicity 的一张注册表并且当规定这些混合物时,指出我们面对的限制的这个治疗学的组有关的肝损坏的四个案例。对在白酒依赖的管理的这些混合物的角色的重估清楚地被需要。Carmen Verge M Isabel Lucena Enrique López-Torres M José Puche-García Enrique Fraga Manuel Romero-Gomez Raúl J Andrade 2006World Journal of Gastroenterology2006,12,31:2
3Peaks over random threshold methodology for tail index and high quantile estimation 显示文摘PAULO ARAUJO SANTOS M ISABEL FRAGA ALVES M IVETTE GOMES 2006REVSTAT-Statistical Journal2006,4,:1
4Peaks over random threshold methodology for tail index and high quantile estimation显示文摘PAULO ARAUJO SANTOS M ISABEL FRAGA ALVES M IVETTE GOMES 2006Revstat-Statistical Journal2006,3,:1
510,000 years of climate control over carbon accumulation in an Iberian bog(southwestern Europe)显示文摘The northwest region of the Iberian Peninsula is home to a unique ecosystem of bogs,which are particularly sensitive to projected climate cha nge.In this context,the rate of carbon(C)accumulation in Chao de Veiga Mol.an intact raised bog,was analysed.Changes in the accumulation rate over the past10 millennia were determined in a peat core of 847 cm in depth,with a high mean rate of peat growth(11 yr cm^-1,0.09 cm yr^-1).An age-depth model was generated from 22 14C dates and fallout radionuclides.Chronological,stratigraphical and physico-chemical data confirmed the existence of a single cycle of peat formation throughout the Holocene and the formation of ombrotrophic peat 9500 years ago.The total mean C content was 50.2%,and over 10 millennia 583 kg C m^-2 accumulated at a mean rate of 35.3 g C m^-2 yr^-1,with a long-term(apparent)rate of carbon accumulation in the catotelm of59.9 g C m^-2 yr^-1.These values are much higher than reported for other Iberian peatlands and are amongst the highest documented for peatlands in the northern hemisphere.The dynamics of C accumulation and other measured parameters reveals important variations throughout the Holocene.They could be associated with the main climatic events described in the northern hemisphere and are highly consistent with models established for northern latitudes.The Chao de Veiga Mol raised bog is unique and of great potential value for carrying out high resolution palaeoenvironmental studies,especially in relation to regional and Iocal modulations in southern Europe.Xabier Pontevedra-Pombal Daniel Castro Martín Souto Isabel Fraga William H. Blake Maarten Blaauw José A. López-Sáez Sebastián Pérez-Díaz Marcos Valcárcel Eduardo García-Rodeja 2019Geoscience Frontiers2019,10,4:0
6Multi-tissue transcriptomics of a unique monozygotic discordant twin case of severe progressive osseous heteroplasia显示文摘Progressive osseous heteroplasia(POH)is an ultra-rare autosomal dominant disabling disorder characterized by heterotopic ossification(HO).It is caused by heterozygous inactivating mutations in the GNAS(guanine nucleotide-binding protein alpha-stimulating activity polypeptide)gene.However,the molecular mechanisms underlying HO remain poorly understood.As a treatment for POH is not yet available,the identification of the mechanisms driving POH in affected tissues using gene expression may be of great help to underestand the molecular basis of POH and develop new therapeutic approaches.Alberto Gomez-Carballa Maria Jose Curras-Tuala Sara Pischedda Miriam Cebey-Lopez Jose Gomez-Rial Irene Rivero-Cale Jacobo Pardo-seco Xabier Bello Sandra Viz-Lasheras Antonio Justicia-Grande Julian Montoto-Louzao Alba Camino-Mera Isabel Ferreiros-Vidal Maximo Fraga Jose RAntunez Rodolfo Gomez Federico Martinon-Torres Antonio Salas 2024Genes & Diseases2024,11,3:0
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