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SHRIMP Zircon U-Pb Dating of Alkaline Dykes in the Pobei Area,Beishan Rift,Xinjiang Autonomous Region,China:Implications for Tectonic Setting and Mantle Plume Events

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Acta Geologica Sinica(English Edition) 2012年第4期86卷 879-884页

作者： MAO Jingwen franco PIRAJNO ZHANG Zuoheng WAN Yusheng MLR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences Geological Survey of Western Australia 100 Plain StreetEast PerthWA 6004Australia MLR key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences Institute of Geology Chinese Academy of Geological Sciences

In the Beishan rift in the eastern Tianshan orogen, Xinjiang Province, a N-S-trending dyke swarm is present in the Pobei area. The swarm cuts through the 270-290 Ma mafic-ultramafic intrusions associated with Ni-Cu sulphide mineralization. These mafic-ultramafic intrusions are typically found along E-W major faults in the Tianshan orogenic belts. We report SHRIMP U-Pb dating of zircons from a dyke of alkaline composition, which yielded a mean age of 252~9 Ma. Alkaline dykes of the same age are found in the Altay region of Siberia. This age is younger than the 270-290 Ma intraplate magmatic events that produced the mafic-ultramafic intrusions in the region, but in general agreement with the 250-260 Ma Permian plume event that gave rise to the Siberian traps and the Emeishan flood basalts in SW China. We suggest that there is a link between the Emeishan event and the dyke swarm in the Beishan rift and that the intraplate magmatism at 270-290 Ma reflects an early stage of mantle plume activity. The N-S trending dyke swarm in the Beishan rift may represent a later stage in the evolution of mantle plume activity in the NW and SW of China. We also speculate that in Beishan rift and possibly elsewhere in the Tianshan region, the dykes fed basaltic volcanism, whose products have since been eroded due to the strong uplift of the Tianshan orogen as a result of the IndiaEurasia collision in the Cenozoic.

关键词： Alkaline dykes SHRIMP tectonic setting mantle plume China

Local renin angiotensin system and sperm DNA fragmentation

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Asian Journal of Andrology 2022年第2期24卷 139-146页

作者： María Victoria Aparicio Prieto María Victoria Rodríguez Gallego Asier Valdivia Palacín Yosu franco Iriarte Gotzone Hervás Barbara Enrique Echevarría Orella Luis Casis Saenz Human Reproduction Unit Cruces University HospitalBarakaldo 48903Spain Human Reproduction Unit San Pedro HospitalLogroño 26006Spain Department of Physiology Faculty of Medicine and NursingUniversity of the Basque Country(UPV/EHU)Leioa 48940Spain Human Reproduction Unit Ruber International HospitalMadrid 28034Spain

The renin angiotensin system(RAS)appears to influence male fertility at multiple *** this work,we analyzed the relationship between the RAS and DNA *** male volunteers were divided into two groups(25 each):control(DNA fragmentation≤20%)and pathological(DNA fragmentation>20%)*** of five peptidases controlling RAS were measured fluorometrically:prolyl endopeptidase(which converts angiotensin[A]I and A II to A 1–7),neutral endopeptidase(NEP/CD10:A I to A 1–7),aminopeptidase N(APN/CD13:A III to A IV),aminopeptidase A(A II to A III)and aminopeptidase B(A III to A IV).Angiotensin-converting enzyme(A I to A II),APN/CD13 and NEP/CD10 were also assessed by semiquantitative cytometry and quantitative flow cytometry assays,as were the receptors of all RAS components:A II receptor type 1(AT1R),A II receptor type 2(AT2R),A IV receptor(AT4R or insulin-regulated aminopeptidase[IRAP]),(pro)renin receptor(PRR)and A 1–7 receptor or Mas receptor(MasR)None of the enzymes that regulate levels of RAS components,except for APN/CD13(decrease in fragmented cells),showed significant differences between both *** of RAS receptors revealed no significant differences in immunolabeling patterns between normozoospermic and fragmented *** of AT1R(94.3%normozoospermic vs 84.1%fragmented),AT4R(96.2%vs 95.3%)and MasR(97.4%vs 87.2%)was similar between the ***2R(87.4%normozoospermic vs 63.1%fragmented)and PRR(96.4%vs 48.2%)were higher in non-fragmented *** findings suggest that fragmented DNA spermatozoa have a lower capacity to respond to bioactive RAS peptides.

关键词： DNA fragmentation local renin angiotensin system sperm fertility

Mucosal biomarkers in inflammatory bowel disease:Key pathogenic players or disease predictors?

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World Journal of Gastroenterology 2010年第21期16卷 2616-2625页

作者： franco Scaldaferrii Carmen Correale Antonio Gasbarrini Silvio Danese Department of Internal Medicine Catholic University of Rome00168 RomeItaly Division of Gastroenterology IRCCSIstituto Clinico Humanitas20089 RozzanoMilanItaly

Inflammatory bowel diseases(IBDs) are chronic inflammatory disorders of the bowel,including ulcerative colitis and Crohn's disease.A single etiology has not been identified,but rather the pathogenesis of IBD is very complex and involves several major and minor contributors,employing different inflammatory pathways which have different roles in different *** new and powerful medical treatments are available,many are biological drugs or immunosuppressants,which are associated with significant side effects and elevated *** a result,the need for predicting disease course and response to therapy is *** attempts have been made at identifying clinical characteristics,concurrent medical therapy,and serological and genetic markers as predictors of response to biological *** few reports exist on how mucosal/tissue markers are able to predict clinical behavior of the disease or its response to *** aim of this paper therefore is to review the little information available regarding tissue markers as predictors of response to therapy,and reevaluate the role of tissue factors associated with disease severity,which can eventually be ranked as "tissue factor predictors".Five main categories are assessed,including mucosal cytokines and chemokines,adhesion molecules and markers of activation,immune and non-immune cells,and other mucosal *** in the design and specificity of clinical studies are mandatory to be able to classify tissue markers as predictors of disease course and response to specific therapy,obtain the goal of achieving "personalized pathogenesisoriented therapy" in IBD.

关键词： Inflammatory bowel disease Crohn’s disease Ulcerative colitis Disease course predictors Cytokines Chemokines Intestinal mucosa

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黄酮哌酯在排尿异常中的应用

中华泌尿外科杂志 1990年第2期11卷 126-127页

作者： franco Fanciullacci 吴关意大利米兰Magenta医院泌尿科

尿失禁仅仅是许多不同疾病的一个症状。欧洲研究排尿问题的重要学会——国际排尿控制学会(Inter-naional Continence Society,ICS)认为尿失禁状态客观证明具有社会或卫生方面的意义。Thomas报告的英格兰尿失禁流行病学资料显示,65岁以... 详细信息

尿失禁仅仅是许多不同疾病的一个症状。欧洲研究排尿问题的重要学会——国际排尿控制学会(Inter-naional Continence Society,ICS)认为尿失禁状态客观证明具有社会或卫生方面的意义。Thomas报告的英格兰尿失禁流行病学资料显示,65岁以下的妇女中8.5%和65岁以上的妇女中11.6%患有尿失禁,在男性中百分比为1.6%和6.9%。亦有报告显示,几乎50%的老年人有尿失禁,而其中仅一半得到了恰当的治疗。

关键词：黄酮哌酯/治疗应用排尿障碍/药物疗法人类

Prediction of the Resonance Characteristics of Combustion Chambers on the Basis of Large-Eddy Simulation

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Journal of Thermal Science 2005年第2期14卷 156-161页

作者： franco MAGAGNATO Balázs PRITZ Horst BCHNER Martin GABI Department of Fluid Machinery University of Karlsruhe GermanyDepartment of Fluid Machinery University of KarlsruheGermanyEngler-Bunte-Institute/Division for Combustion Technology University of KarlsruheGermanyDepartment of Fluid Machinery University of KarlsruheGermany

In the last few years intensive experimental investigations were performed at the University of Karlsruhe to develop an analytical model for the Helmholtz resonator-type combustion system. In the present work the resonance characteristics of a Helmholtz resonator-type combustion chamber were investigated using large-eddy simulations (LES), to understand better the flow effects in the chamber and to localize the dissipation. In this paper the results of the LES are presented, which show good agreement with the experiments. The comparison of the LES study with the experiments sheds light on the significant role of the wall roughness in the exhaust gas pipe.

关键词：可压缩涡旋仿真燃烧不稳定性振荡流阻尼系数

重稀土HRENiGa_(2)(HRE=Dy,Ho或Er)化合物的优异低温磁热性能

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Science China Materials 2023年第1期66卷 249-256页

作者：郭丹 Luis M.Moreno-Ramírez Jia-Yan Law 张义坤 Victorino franco Key Laboratory of Novel Materials for Sensor of Zhejiang Province&School of Electronics and Information Engineering Hangzhou Dianzi UniversityHangzhou 310012China Departamento de Física de la Materia Condensada ICMS-CSICUniversidad de SevillaP.O.Box 1065.41080-SevillaSpain State Key Laboratory of Advanced Special Steels&Shanghai Key Laboratory of Advanced Ferrometallurgy&School of Materials Science and Engineering Shanghai UniversityShanghai 200072China

RENiX_(2)化合物(其中RE为稀土元素,X为p区元素)在低温磁制冷应用中受到高度关注.它们根据元素的不同可以结晶成CeNiSi_(2)型、NdNiGa_(2)型或MgCuAl_(2)型晶体结构,并表现出不同类型的磁有序性从而影响其磁性.MgCuAl_(2)型铝化物由于... 详细信息

RENiX_(2)化合物(其中RE为稀土元素,X为p区元素)在低温磁制冷应用中受到高度关注.它们根据元素的不同可以结晶成CeNiSi_(2)型、NdNiGa_(2)型或MgCuAl_(2)型晶体结构,并表现出不同类型的磁有序性从而影响其磁性.MgCuAl_(2)型铝化物由于具有有利的铁磁基态从而表现出比CeNiSi_(2)型硅化物和NdNiGa_(2)型镓化物更大的磁热性能.此外,RENiGa_(2)镓化物根据RE元素的不同可以结晶成NdNiGa_(2)或MgCu Al_(2)型结构.本文中,我们选择重稀土(HRE)元素来探索HRENiGa_(2)(HRE=Dy,Ho或Er)镓化物的微观结构、磁有序和磁热性能.三种化合物均以MgCuAl_(2)型晶体结构结晶,并且随着温度的升高经历了从铁磁到顺磁的二级磁相转变.DyNiGa_(2),HoNiGa_(2)和ErNiGa_(2)化合物的最大等温磁熵变(|ΔSisomax|)值分别为6.2,10.4和11.4 J kg^(-1)K^(-1)(0-5T),这与许多最近报道的低温磁制冷材料性能相当.特别地,HoNiGa_(2)和ErNiGa_(2)化合物(包括它们的复合材料)在氢气液化的温度范围内表现出优异的磁热性能.

关键词：重稀土磁热性能晶体结构磁制冷材料稀土元素磁有序等温磁熵变硅化物

红海VMS矿床黄铁矿微量元素和同位素微区原位分析及其成因和勘查意义

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中国科学：地球科学 2023年第4期53卷 723-750页

作者：孙志远邓小华 franco PIRAJNO 宿州学院资源与土木工程学院宿州234000 北京矿产地质研究院有限责任公司北京100012 长安大学地球科学与资源学院西部矿产资源与地质工程教育部重点实验室西安710054 Centre for Exploration Targeting School of Earth and EnvironmentUniversity of Western AustraliaCrawleyWA 6008Australia

文章对红海火山成因块状硫化物矿床中黄铁矿的结构、微量元素和硫同位素进行研究,以期限定成矿流体的来源和演化,并对矿床成因和勘查提供新的思路.红海矿床具有上部块状矿体和下部(网)脉状矿体的空间结构特征.研究结果表明,上部草莓状... 详细信息

文章对红海火山成因块状硫化物矿床中黄铁矿的结构、微量元素和硫同位素进行研究,以期限定成矿流体的来源和演化,并对矿床成因和勘查提供新的思路.红海矿床具有上部块状矿体和下部(网)脉状矿体的空间结构特征.研究结果表明,上部草莓状黄铁矿(Syn-Py)的结构和同位素特征指示其形成于生物同沉积成因过程.上部块状矿石不同层位的黄铁矿(M-Py1、M-Py2、M-Py3)具有较高的Au、Ag、Cu、Zn、Pb、Sb、Tl含量和较低的Co、Se、Te、Ti、Sn含量,表明其形成于富金属的中高温(200~400℃)氧化性流体环境.块状矿体下层黄铁矿(M-Py4)具有高的Te、Ti、Sn含量和高的Co/Ni值,与之共生的磁铁矿具有高的Ti、V、Cr、Ni含量和低的Al、Mn、Zn含量,表明二者形成于高温(300~500℃)氧化条件.而下部(网)脉状矿石中的黄铁矿(V-Py1、V-Py2、V-Py3)以低Au、Ag、Cu、Zn、Pb、Sb、Tl含量和高Co、Se、Te、Ti含量以及高Co/Ni值为特征,指示其形成于中高温环境.硫同位素组成特征(δ^(34)S=-6.4‰~+29.9‰)表明成矿流体来自深部岩浆源并受海水影响显著.浸染状矿化中的黄铁矿(D-Py)在结构、微量元素和同位素组成特征上具有“过渡”的特征,其核部继承块状矿化特征,而边部继承(网)脉状矿化特征.红海矿床不同深度就位矿体中黄铁矿微量元素及比值(如Co、Te、Ti、Se、As、Au、Pb、Sb、Tl、Ag、Cu、Zn和Co/Ni、Co/Sb、Se/As)在空间上有规律的变化特征,可以作为寻找块状工业矿体的指示标识.此外,尽管上部块状矿体和下部(网)脉状矿体中黄铁矿δ^(34)S值无明显差异,但其δ^(34)S峰值亦可作为寻找块状矿体的重要标识.

关键词：黄铁矿原位微量元素原位硫同位素成矿流体红海VMS矿床

Bacterial and archaeal communities in saline soils from a Los Negritos geothermal area in Mexico

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Pedosphere 2023年第2期33卷 312-320页

作者： Joseph GUEVARA-LUNA Mario HERNÁNDEZ-GUZMÁN Nina MONTOYA-CIRIACO Luc DENDOOVEN Marina Olivia franco-HERNÁNDEZ Paulina ESTRADA-DE LOS SANTOS María Soledad VÁSQUEZ-MURRIETA Escuela Nacional de Ciencias Biológicas Instituto Politécnico NacionalCiudad de México 11340(Mexico) Laboratory of Soil Ecology CinvestavMexico City 07360(Mexico) Centro Tlaxcala de Biología de la Conducta Universidad Autónoma de Tlaxcala.Carretera Federal Tlaxcala-Puebla km.1.5Tlaxcala 90070(Mexico) Unidad Profesional Interdisciplinaria de Biotecnología Instituto Politécnico NacionalCiudad de México 07340(Mexico)

In recent years,there has been a growing need to understand how salinity affects microbial communities in agricultural *** and bacterial community diversities and structures were investigated by high-throughput sequencing analysis of their 16S rRNA in two arable soils with low electrical conductivity(EC)(2.3 and 2.6 dS m^(-1))and a saline soil(EC=17.6 dS m^(-1)).The dominant bacterial phyla in the soils were Proteobacteria(relative abundance(RA)=46.2%),followed by Acidobacteria(RA=13.1%)and Actinobacteria(RA=10.0%),whereas Serratia(RA=6.0%)and Bacillus(RA=4.0%)were the dominant bacterial *** Nitrososphaera(53.5%)was the dominant archaeal phylotype in the arable soils,whereas Nitrosopumilus(RA=0.4%)dominated in the saline *** archaeal and bacterial community structures were different between the soils and significantly correlated with soil sand,arsenic,barium,and antimony contents,but not with soil salinity.

关键词： agricultural soil compositional approach microbial community mud volcano soil salinity soluble anion

Arthrospira maxima(Spirulina)prevents endoplasmic reticulum stress in the kidney through its C-phycocyanin

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2021年第7期22卷 603-608页

作者： Placido ROJAS-franco Margarita franco-COLÍN Vanessa BLAS-VALDIVIA María Estela MELENDEZ-CAMARGO Edgar CANO-EUROPA Laboratorio de Metabolismo I Departamento de FisiologíaEscuela Nacional de Ciencias BiológicasInstituto Politécnico NacionalMexico City 07738Mexico Laboratorio de Neurobiología Departamento de FisiologíaEscuela Nacional de Ciencias BiológicasInstituto Politécnico NacionalMexico City 07738Mexico Laboratorio de Toxicologia Hepática y Renal Departamento de FarmaciaEscuela Nacional de Ciencias BiológicasInstituto Politécnico NacionalMexico City 07738Mexico

Arthrospira maxima(Spirulina)is a cyanobacterium which is considered a nutraceutical because it has antioxidant,anti-inflammatory,and cytoprotective properties in different renal disease models(RodriguezSánchez et al... 详细信息

关键词： al. protective reticulum