检索结果-南通市图书馆

Progress of the Modeling Approach on Land Change Science： Comments on Modelling the Dynamics and Consequences of Land System Change

引用

Journal of Geographical Sciences 2012年第3期22卷 575-576页

作者： maria victoria ortega espaldon School of Environmental Science and Management University of the Philippines

Land system change has never been out of human concerns. It is always one of the hottest themes in global environmental change research （Seto et al., 2002; Gutman et al., 2004）. With the development of research on land use change and the Global Land Project, it is necessary to explore the interactions and associations among various factors in the land system from a systematic perspective to recognize the causes and effects of land system change.

关键词：模型方法新进展动力学土地系统简评科学效应模拟

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Prognostic performance of an index based on lactic dehydrogenase and transaminases for patients with liver steatosis and COVID-19

引用

World Journal of Gastroenterology 2022年第37期28卷 5444-5456页

作者： Ricardo Ulises Macías-Rodríguez Alberto Adrián Solís-ortega victoria J Ornelas-Arroyo Astrid Ruiz-Margáin maria Sarai González-Huezo Nestor A Urdiales-Morán Berenice M Román-Calleja Juan M Mayorquín-Aguilar JoséA González-Regueiro Alejandro Campos-Murguía Israel Vicente Toledo-Coronado Mónica Chapa-Ibargüengoitia Bernardo Valencia-Peña Carlos Fernando Martínez-Cabrera Nayelli C Flores-García Department of Gastroenterology Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico City 14080Mexico Department of Gastroenterology Centro Médico ISSEMYMToluca 52140Mexico Department of Radiology Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico City 14080Mexico

BACKGROUND Metabolic associated fatty liver disease(MAFLD)is associated with complications and mortality in patients with coronavirus disease 2019(COVID-19).However,there are no prognostic scores aimed to evaluate the risk of severe disease specifically in patients with MAFLD,despite its high prevalence.Lactate dehydrogenase,aspartate aminotransferase and alanine aminotransferase have been used as markers of liver damage.Therefore,we propose an index based on lactate dehydrogenase,aspartate aminotransferase and alanine aminotransferase for the prediction of complications and mortality in patients with MAFLD and COVID-19.AIM To evaluate the prognostic performance of an index based on lactate dehydrogenase and transaminases(aspartate aminotransferase/alanine aminotransferase)in patients with COVID-19 and MAFLD[liver fibrosis and nutrition(LNF)-COVID-19 index].METHODS In this retrospective cohort study,two cohorts from two different tertiary centers were included.The first was the derivation cohort to obtain the score cutoffs,and the second was the validation cohort.We included hospitalized patients with severe COVID-19 and MAFLD.Liver steatosis was evaluated by computed tomography scan.Area under the receiver operating characteristic(ROC)curve analysis and survival analysis were used.RESULTS In the derivation cohort,44.6%had MAFLD;ROC curve analysis yielded a LFN-COVID-19 index>1.67 as the best cutoff,with a sensitivity of 78%,specificity of 63%,negative predictive value of 91%and an area under the ROC curve of 0.77.In the multivariate analysis,the LFN-COVID-19 index>1.67 was independently associated with the development of acute kidney injury(odds ratio:1.8,95%confidence interval:1.3-2.5,P<0.001),orotracheal intubation(odds ratio:1.9,95%confidence interval:1.4-2.4,P<0.001),and death(odds ratio:2.86,95%confidence interval:1.6-4.5,P<0.001)in both cohorts.CONCLUSION LFN-COVID-19 index has a good performance to predict prognosis in patients with MAFLD and COVID-19,which could be useful for the MAFLD population.

关键词： COVID-19 Metabolic associated fatty liver disease Lactate dehydrogenase Transaminases Prognosis Nonalcoholic fatty liver disease

来源：

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

A Laurentian affinity for the Embu Terrane,Ribeira Belt(SE Brazil),revealed by zircon provenance statistical analysis

引用

Geoscience Frontiers 2023年第1期14卷 149-161页

作者： Bruno V.Ribeiro Frederico M.Faleiros Ginaldo A.C.Campanha Peter A.Cawood Christopher L.Kirkland Milo Barham Erin L.Martin Marina Seraine Dina I.G.Cabrita maria T.A.G.Yogi VidyãV.Almeida Anny J.A.Forero-ortega Elton L.Dantas Timescales of Mineral Systems Group School of Earth and Planetary SciencesCurtin UniversityPerthWA 6102Australia Isotopia Laboratory School of EarthAtmosphere and EnvironmentMonash UniversityClaytonVictoria 3800Australia Department of Mineralogy and Geotectonics University of São PauloRua do Logo 56205508-900 São PauloBrazil Department of Geological Science and Geological Engineering of Queen's University KingstonOntarioCanada Department of Earth Sciences Carleton UniversityOttawaOntarioCanada Geodynamics Division Geological Survey of Brazil(CPRM)Rua Costa 5501304-010 São PauloSPBrazil Institute for Geophysics Pontificia Universidad JaverianaBogotáColombia Institute of Geoscience University of BrasiliaCampus Universitário Darcy RibeiroAna Norte70919-900 BrasiliaDFBrazil

New and compiled detrital zircon U-Pb ages from the southern Neoproterozoic-Cambrian Ribeira Belt,SE Brazil,demonstrate Laurentian affinity of the Embu Terrane which is statistically distinct from the adjoining Apiaíand São Roque terranes with cratonic affinity(e.g.,São Francisco Craton).Zircon provenance results indicate that the type-area of the Embu Terrane is dominated by detrital zircon age modes at ca.1200 Ma,1400 Ma,and 1800 Ma,with maximum depositional age of ca.1000 Ma.In contrast,the Apiaíand São Roque terranes are dominated by Paleoproterozoic detrital zircon ages(ca.2200-2000 Ma age dominant component),with maximum depositional ages of ca.1400 Ma and 1750 Ma,respectively.Multidimensional scaling(MDS)analysis of non-parametric similarity measurements on zircon age populations indicates for the first time that the Embu Terrane encompass two statistically distinct detrital zircon age spectra,which is also reflected in the metamorphic zircon age record.The statistical characterization of the Embu Terrane through populational metrics allow a quantitative comparison with surrounding tectonic domains and rock samples classified such as Embu-type.Our results clearly highlight the distinction between the statistically differentiated Embu Terrane from the Apiaíand São Roque terranes,supporting an allochthonous interpretation.In addition,we demonstrate that rocks samples previously classified as Embu-type are significantly dissimilar to the definition of Embu Terrane,failing to support alternative tectonic models(e.g.,intracontinental evolution).Detrital zircon age spectra reveal that the Apiaíand São Roque terranes have similar zircon provenance to domains sourced from the São Francisco Craton,whereas detrital zircon populations from the Embu Terrane have greater affinity with SW Laurentia basins(and their inferred sediment sources),consistent with previous findings.Therefore,we interpret the Embu Terrane as a Rodinia descendant developed along the active margin of the SW Laurentia that collided with the Ribeir

关键词： Ribeira belt Embu terrane Detrital zircon Multidimensional scaling Rodinia and gondwana Paleogeography

来源：

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

基于LC-Q-TOF的多组织代谢组学:一种确认受富含多元酚食物影响小鼠新的代谢通路的探索工具

引用

营养健康新观察 2012年第1期 39-40页

作者： Mariona Jove Jose C.E.Serrano Nadia ortega victoria Ayala Neus Angles Jordi Reguant Jose R.Morello maria Paz Romero maria Jose Motilva Joan Prat Reinald Pamplona Manuel Portero-Otin 王茂清

现在有关膳食对机体影响的代谢组学研究仅仅是研究膳食对血样和尿样的影响,而忽略了其他生物样本,例如盲肠内容物,就等于遗漏了消化系统的作用和忽略了肠道微生物菌群在代谢中的重要作用和其在生物利用率方面的影响。许多研究已经证明... 详细信息

现在有关膳食对机体影响的代谢组学研究仅仅是研究膳食对血样和尿样的影响,而忽略了其他生物样本,例如盲肠内容物,就等于遗漏了消化系统的作用和忽略了肠道微生物菌群在代谢中的重要作用和其在生物利用率方面的影响。许多研究已经证明多组织样本代谢组学在评估营养物质在机体内的代谢影响方面的重要性。然而这些研究都是以核磁共振技术为分析手段的,由于核磁共振技术的低灵敏度,限制了可检测代谢产物的数量。

关键词：代谢组学多元酚 LC-Q-TOF 生物利用率核磁共振技术生物样本盲肠内容物肠道微生物菌群

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于LC-Q-TOF的多组织代谢组学:一种确认受富含多元酚食物影响小鼠新的代谢通路的探索工具

基于LC-Q-TOF的多组织代谢组学:一种确认受富含多元酚食物影响小...

引用

现在有关膳食对机体影响的代谢组学研究仅仅是研究膳食对血样和尿样的影响,而忽略了其他生物样本,例如盲肠内容物,就等于遗漏了消化系统的作用和忽略了肠道微生物菌群在代谢中的重要作用和其在生物利用率方面的影响。许多研究已经证明...

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：