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AMBIO－人类环境杂志 2004年第6期33卷 322-327页

作者： F.S.Chapin Ⅲ G.Peterson F.Berkes T.V.Callaghan P.Angelstam M.Apps C.Beier Y.Bergeron A.-S.Crépin K.Danell T.Elmqvist C.Folke B.Forbes n.fresco G.Juday J.niemel A.Shvidenko G.Whiteman 肖飞 Institute of Arctic Biology University of Alaska

北极苔原带和北方森林(北部地区)因其分布广阔并远离农业土地利用变化及工业发展的影响,而一度被认为是地球上最后的净土。但如今这些地区如同地球上任何别的地区一样,也正经受着环境和社会变化的影响。本文总结了北部地区在全球系统中... 详细信息

北极苔原带和北方森林(北部地区)因其分布广阔并远离农业土地利用变化及工业发展的影响,而一度被认为是地球上最后的净土。但如今这些地区如同地球上任何别的地区一样,也正经受着环境和社会变化的影响。本文总结了北部地区在全球系统中所起的作用,并提出方案以便对导致该地区对社会和环境变化敏感的那些因子进行评价。

关键词：北极苔原地区森林地区稳定性脆弱性

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维普期刊数据库

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意大利心脏病学网络中非ST段抬高型急性冠状动脉综合征的流行病学:BLITZ-2研究

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世界核心医学期刊文摘（心脏病学分册） 2006年第6期2卷 48-49页

作者： Di Chiara A. fresco C. Savonitto S. 王亭忠 S.M. Misericordia Hospital Udine Italy

Aims: Acute coronary syndromes without ST- segment elevation(nSTEACS) represent an increasingly frequent cause of hospital admission. The BLITZ- 2 study was planned to survey the epidemiology and management strategies of nSTEACS in the Italian cardiological network. Methods and results: The study included 1888 patients with nSTEACS in 275 hospitals in 3 weeks. At admission, almost 20% of patients showed clinical signs of heart failure, half showed ST- segment depression, and half showed any positive biochemical myocardial necrosis marker. Patients admitted to hospitals without CathLab(n=973) were older(P=0.0005) and with higher Killip class on admission(Pn compared with those admitted to hospitals with CathLab(n=915). During index hospitalization, 76% of the patients initially admitted to hospitals with invasive capability underwent coronary angiography and 39% percutaneous coronary intervention when compared with 39 and 17.2% of those admitted to hospitals without CathLab(Pn patients with invasive capability vs. 2.9% in hospitals without CathLab, P=0.2). Cardiac ischaemic events at 30 days(recurrent MI, recurrent angina, and re- hospitalization for ACS) were significantly higher in the group of patients admitted to hospitals without CathLab(OR 1.71, 95% CI 1.24- 2.35). However, after multivariable adjustment, only advanced age(OR 1.043, 95% CI 1.021- 1.065, Pnd Killip class >1(OR 1.633, 95% CI 1.020- 2.614, P=0.04) resulted in independent predictors of death, in- hospital MI, and re- admission for ACS, whereas the absence of an on- site CathLab did not predict an adverse outcome(OR 1.104, 95% CI 0.734- 1.660). Conclusion: According to this, the nationwide registry outcome is only marginally influenced by invasive procedures. Contemporary management of patients with nSTEACS in Italy is primarily driven by resource availability.

关键词：急性冠状动脉综合征流行病学心脏病学非ST段抬高型意大利网络 Killip分级冠状动脉造影检查经皮冠状动脉介入患者表现

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Unraveling one billion years of geological evolution of the southeastern Amazonia Craton from detrital zircon analyses

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Geoscience Frontiers 2022年第5期13卷 129-152页

作者： Camille Rossignol Paul Yves Jean Antonio Francesco narduzzi Eric Siciliano Rego Lívia Teixeira Romário Almeida de Souza Janaína n.Ávila Marco A.L.Silva Cristiano Lana Ricardo I.F.Trindade Pascal Philippot Departamento de Geofísica Instituto de AstronomiaGeofísica e Ciências Atmosféricas da Universidade de São PauloRua do Matão1226-Cidade UniversitáriaSão Paulo 05508-090Brazil Institut de Physique du Globe de Paris Universitéde ParisCNRSParisFrance Géosciences Montpellier Universitéde MontpellierCNRSUniversitédes AntillesMontpellierFrance Instituto de Geociências Universidade de São PauloRua do Lago562-Cidade UniversitáriaSão Paulo 05508-080Brazil Instituto de Geociências e Engenharias Universidade Federal do Sul e Sudeste do Pará–UNIFESSPAFolha 17Quadra 04Lote especialNova MarabáMarabáPará68505-080Brazil Research School of Earth Sciences The Australian National University142 Mills RoadCanberraACT 2601Australia Applied Isotope Research Group Departamento de GeologiaEscola de MinasUniversidade Federal de Ouro PretoRua Diogo de Vasconcelos12235400-000 Ouro PretoMGBrazil

Despite representing one of the largest cratons on Earth,the early geological evolution of the Amazonia Craton remains poorly known due to relatively poor exposure and because younger metamorphic and tectonic events have obscured initial *** this study,we investigated the sedimentary archives of the Carajás Basin to unravel the early geological evolution of the southeastern Amazonia *** Carajás Basin contains sedimentary rocks that were deposited throughout a long period spanning more than one billion years from the Mesoarchean to the *** oldest archives preserved in this basin consist of a few ca.3.6 Ga detrital zircon grains showing that the geological roots of the Amazonia Craton were already formed by the *** the Paleoarchean or the early Mesoarchean(n was large and rigid enough to sustain the formation and preservation of the Rio novo Group greenstone ***,during the neoarchean,at ca.2.7 Ga,the southeastern Amazonia Craton witnessed the emplacement of the Parauapebas Large Igneous Province(LIP)that probably covered a large part of the craton and was associated with the deposition of some of the world largest iron *** emplacement of this LIP immediately preceded a period of continental extension that formed a rift infilled first by iron formations followed by terrigenous *** major change of sedimentary regime might have been controlled by the regional tectonic evolution of the Amazonia Craton and its emergence above *** the Paleoproterozoic,at ca.2.1 Ga,the Rio fresco Group,consisting of terrigenous sediments from the interior of the Amazonia Craton,was deposited in the Carajás *** that time,the Amazonian lithosphere could have either underwent thermal subsidence forming a large intracratonic basin or could have been deformed by long wavelength flexures that induced the formation of basins and swells throughout the craton under the influence of

关键词： Carajás Basin Chemical Abrasion–LA-ICP-MS analyses Age distribution comparison Parauapebas Large Igneous Province Transamazonian orogeny

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