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Vanadium mineralization at Los Chihuidos sediment-hosted Cu-V deposit,Neuquén Basin,Argentina:An approach to vanadium ore forming processes

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Geoscience Frontiers 2024年第1期15卷 225-246页

作者： ana L.Rainoldi Daniel Beaufort Marta B.Franchini Adolfo Giusiano Sabine Petit Patricia Patrier M.Josefina Pons Dpto.de Geología Universidad Nacional del Sur(UNS)8000 Bahía BlancaArgentina Consejo Nacional de Investigaciones Científicas y Técnicas Centro Patagónico de Estudios MetalogenéticosArgentina Universitéde Poitiers IC2MPCNRS-UMR 7285HydrasaF-86022 Poitiers CedexFrance Universidad Nacional del Comahue Facultad de IngenieríaDepartamento de Geología y Petróleo8300 NeuquénArgentina Consultant Geologist 8300 NeuquénArgentina Universidad Nacional de Río Negro Instituto de Investigación en Paleobiología y GeologíaRío NegroArgentina

Vanadium mineralization at Los Chihuidos deposit of the Neuquén Basin is linked to the development of a redox front system related to the inflow of hydrocarbons into the red sandstone of the Huincul *** of hydrocarbons with oxidized red beds and connate water generated redox reactions where hematite was dissolved due to iron reduction resulting in the discoloration of the red *** the contact between oxidized red sandstone and reduced white sandstone,precipitation of specific mineral phases resulted in the V ore with minor amounts of *** the implementation of the redox interface,abundant V-montmorillonite and V-hematite precipitated at the more oxidizing conditions and Cu-V-corrensite-type at the more reducing conditions of the redox *** the redox front advanced with fluids constantly migrating into the reservoir,more reducing conditions were stablished,promoting chloritization and minor illitization with V-Cu incorporation and continuous upgrading of the *** ore mineralogy consists of clay minerals including V-bearing montmorillonite,Cu-V-corrensite-type,V-di-trioctahedral chlorite and Cu-tri-trioctahedral chlorite with minor V-illite-smectite mixed-layer minerals and associated secondary *** over illitization was favored due to high amounts of Fe and Mg in detrital clasts and in connate fluids and by low K availability related to low amounts of detrital *** spatial transition of V and/or Cu bearing clay minerals observed through the mineralized redox front at Los Chihuidos deposit(kaolinite→smectite→illite/smectite→corrensite-type→di-trioctahedral-chlorite→tri-trioctahedral-chlorite)and the related variation of V-Cu concentrations in bulk rock are indicative of increasing pH and decreasing Eh of resident solutions from red to white sandstones during the hypogene mineralization *** influx of Cu-rich oxidized basinal brines precipitated main copper ore with Cu-sulfides in the white sandst

关键词： Clay minerals V-chlorite Redox front Bleaching Hydrocarbons

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Early detection of tomato bacterial canker by reflectance indices

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Information Processing in Agriculture 2022年第2期9卷 184-194页

作者： Gabriela Cordon Carolina Andrade Lucia Barbara ana maria Romero Universidad de Buenos Aires Consejo Nacional de Investigaciones Cientı´ficas y Te´cnicasInstituto de Investigaciones Fisiolo´gicas y Ecolo´gicas Vinculadas a la Agricultura(IFEVA)Facultad de Agronomı´aBuenos AiresArgentina Universidad de Buenos Aires Facultad de Agronomı´aA´rea de Educacio´n AgropecuariaBuenos AiresArgentina Universidad de Buenos Aires Facultad de Agronomı´aCa´tedra de Fitopatologı´aBuenos AiresArgentina

Early detection of infected asymptomatic plants could prevent the dissemination of tomatobacterial canker throughout the crop and, thus, reduce associated economic losses. Reflectance spectroscopy has been proposed for the detection of diseases in plants, mainlycaused by foliar fungal pathogens. In contrast, bacterial canker is a vascular disease thatdoes not produce visible foliar symptoms until it is too late to avoid contagion to otherplants. The effects of the disease on the conductivity of the xylem have an impact onthe water content of the leaves;initially, a subtle effect that cannot be assessed with thenaked eye but can be evaluated by reflectance spectroscopy. The objective of this workwas to identify indices, based on the reflectance spectral signature of the plants, for thedetection of tomato plants affected by bacterial canker prior to the appearance of symptoms. To verify that the proposed methodology is applicable to a broad range of tomatogenotypes, two experiments were carried out with different tomato cultivars grown in potsand another on the ground in a greenhouse. Plants were inoculated with the pathogenicbacteria and the reflectance spectrum of the apical leaflet of two leaves per plant wereobtained before symptoms expression;several spectral indices were calculated from thereflectance spectra. Three indices, of the shortwave-infrared zone, allowed the detectionof bacterial canker inoculated plants in a fast and non-destructive way, up to one weekbefore symptoms were visible: Normalized Difference Water Index (NDWI), Simple Ratioof Water Index (SRWI) and Water Index 1 180 (WI1180). Our research demonstrates, forthe first time, the usefulness of spectral indices sensitive to water content for the identifi-cation of diseased plants. These indices arise as a promising tool for the early detection ofvascular plant diseases, that could be integrated into sustainable management plans.

关键词： Clavibacter michiganensis subsp. michiganensis Bacterial wilt Reflectance indices Solanum lycopersicum L

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Genetic variation at the p53 locus of two ecologically divergent Microtus pine voles:identification of molecular markers for species assignment

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Integrative Zoology 2022年第6期17卷 1179-1192页

作者： ana Sofia QUINA João Paulo TAVANEZ maria da Luz MATHIAS CESAM-Centro de Estudos do Ambiente e do Mar Departamento de BiologiaUniversidade de AveiroAveiroPortugal CESAM-Centro de Estudos do Ambiente e do Mar Faculdade de CiênciasUniversidade de LisboaLisboaPortugal Departamento de Biologia Animal Faculdade de CiênciasUniversidade de LisboaLisboaPortugal Global Health and Tropical Medicine(GHTM) Instituto de Higiene e Medicina Tropical(IHMT)Universidade NOVA de Lisboa(UNL)Portugal

The Lusitanian(Microtus lusitanicus)and the Mediterranean(Microtus duodecimcostatus)pine voles are recently diverged sister species endemic of the Iberian Peninsula that can be identiﬁed with ecological and morphological characters,but in areas where the 2 species co-occur,species designation may be difﬁ*** discrimination between *** and *** has not been achieved yet possibly because of their estimated re-cent split and an evolutionary history that includes inter-species geneﬂ*** our previous observations on exons 5–7 of the p53 gene,here we analyze the potential use of the p53 genomic region as a discrimination marker of these species by extending our analyses to several kb upstream and downstream of the p53 gene and charac-terizing the degree of genetic differentiation in 7 markers within this ***,we fully sequenced the P53 protein of both *** observed:(i)generally high differentiation in this region;(ii)*** showed in general higher values of nucleotide and haplotype diversities;(iii)the concatenated phylogenetic tree separates the 2 species;(iv)the 2 P53 proteins only differ in 1 amino acid;(v)4 of the markers,2 in p53,one in Atp1b2,and another in Wrap53,contain species-speciﬁc genetic variation thus allowing a reliable discrimination between specimens from both species,irrespective of sampling location or introgression *** provide ad-ditional data on the putative role of p53 in the evolution of these species and present researchers with a fast and cost-effective resource for *** and *** identiﬁcation.

关键词： ecological stress genetic variation Microtus molecular marker p53

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Structural characteristics and the label-free detection of poly(3,4-ethylenedioxythiophene/cucurbit[7]uril)pseudorotaxane at single molecule level

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Nano Research 2023年第2期16卷 2728-2737页

作者： Aurica Farcas Hadjer Ouldali Corneliu Cojocaru Manuela Pastoriza-Gallego ana-maria Resmerita Abdelghani Oukhaled “Petru Poni”Institute of Macromolecular Chemistry 700487 IasiRomania CY Cergy Paris Université CNRSLAMBE95000 CergyFrance

A multi-technique approach to prove the preparation of poly(3,4-ethylenedioxythiophene/cucurbit[7]uril)pseudorotaxanes(PEDOT∙CB7-PPs)is *** docking simulation and matrix-assisted laser desorption/ionization mass spectrometry(MALDI MS)validate the complexation ability of the CB7 molecule towards 3,4-ethylenedioxythiophene(EDOT),which leads to the EDOT∙CB7 inclusion *** polymerization of EDOT∙CB7 enabled the synthesis of PEDOT∙*** water-soluble part of PEDOT∙CB7-PPs was selected,freeze-dried,and chemically ***,dynamic light scattering(DLS)has been used to study the particle size and z-potential(ZP-ζ)of PEDOT∙*** ZP-ζvalue(35 mV)evidenced that the PEDOT∙CB7-PPs formed stable water *** combining the emerging nanopore resistive pulse sensing technique(Np-RPS)and computational modeling,we identified strong interactions of PEDOT∙CB7-PPs with the aerolysin(Ael)***∙CB7-PPs behave as positive charged species,and thus trans negative bias promotes its interactions with the Ael *** computational modeling results are fully consistent with the Np-RPS detection,which also reveals strong interactions between PEDOT∙CB7-PPs and the Ael *** this study,we hope to provide new insights and a better understanding of the interactions between supramolecular complexes based on CB7 and biological entities,which is instrumental for future applications in the field of nanobiotechnology.

关键词： supramolecular encapsulation poly(3,4-ethylenedioxythiophene)(PEDOT) cucurbituril aerolysin electrical detection computational modeling

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Elite,transformable haploid inducers in maize

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The Crop Journal 2024年第1期12卷 314-319页

作者： Brent Delzer Dawei Liang David Szwerdszarf Isadora Rodriguez Gonzalo Mardones Sivamani Elumalai Francine Johnson Samson Nalapalli Rachel Egger Erin Burch Kerry Meier Juan Wei Xiujuan Zhang Huaping Gui Huaibing Jin Huan Guo Kun Yu Yubo Liu Becky Breitinger ana Poets Jason Nichols Wan Shi David Skibbe Qiudeng Que Timothy Kelliher Seeds Development Syngenta SeedsJanesvilleWI 53546USA Seeds Research Syngenta Biotechnology China Co.Ltd.Beijing 102206China Centro de Investigación de Cultivos Arica Syngenta R&DArica 1000000Chile Syngenta S.A. Proyecto la SoledadGraneros 2880000Chile Seeds Research Syngenta Crop Protection LLCRTPNC 27709USA Seeds Development Syngenta SeedsSlaterIA 50244USA

The introduction of alleles into commercial crop breeding pipelines is both time consuming and *** technologies that are disrupting traditional breeding processes are doubled haploid(DH)breeding and genome editing(GE).Recently,these techniques were combined into a GE trait delivery system called HI-Edit(Haploid Inducer-Edit).In HI-Edit,the pollen of a haploid inducer line is reprogrammed to deliver GE traits to any variety,obviating recurrent *** HI-Edit to operate at scale,an efficient transformable HI line is needed,but most maize varieties are recalcitrant to transformation,and haploid inducers are especially difficult to transform given their aberrant reproductive *** marker assisted selection and a three-tiered testing scheme,we report the development of new Iodent and Stiff Stalk maize germplasm that are transformable,have high haploid induction rates,and exhibit a robust,genetically-dominant anthocyanin native trait that may be used for rapid haploid *** show that transformation of these elite‘‘HI-Edit”lines is enhanced using the BABYBOOM and WUSCHEL morphogenetic ***,we evaluate the HI-Edit performance of one of the lines against both Stiff Stalk and non-Stiff Stalk *** strategy and results of this study should facilitate the development of commercially scalable HI-Edit systems in diverse crops.

关键词： Zea mays L Doubled haploids Transformation Genome editing QTL

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In silico prospective analysis of the medicinal plants activity on the CagA oncoprotein from Helicobacter pylori

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World Journal of Clinical Oncology 2024年第5期15卷 653-663页

作者： Rafaela Viana Vieira Gabrielle Caroline Peiter Fabrício Freire de Melo ana Carla Zarpelon-Schutz Kádima Nayara Teixeira Universidade Federal do Paraná Campus ToledoToledo 85919-899Brazil Universidade Tecnológica Federal do Paraná Campus ToledoParaná85902-490Brazil Universidade Federal da Bahia Instituto Multidisciplinar em Saúde-Campus Anísio TeixeiraVitória da Conquista 45029-094Brazil Universidade Federal do Paraná-Setor Palotina Programa de Pós-graduação em BiotecnologiaPalotina 85950-000Brazil

BACKGROUND Colonization with Helicobacter pylori(***)has a strong correlation with gastric cancer,and the virulence factor CagA is implicated in *** have been conducted using medicinal plants with the aim of eliminating the pathogen;however,the possibility of blocking ***-induced cell differentiation to prevent the onset and/or progression of tumors has not been *** type of study is expensive and time-consuming,requiring in vitro and/or in vivo tests,which can be solved using ***,prospective computational analyses were conducted to assess the feasibility of interaction between phenolic compounds from medicinal plants and the CagA *** To perform a computational prospecting of the interactions between phenolic compounds from medicinal plants and the CagA oncoprotein of *** In this in silico study,the structures of the phenolic compounds(ligands)kaempferol,myricetin,quercetin,ponciretin(flavonoids),and chlorogenic acid(phenolic acid)were selected from the PubChem *** phenolic compounds were chosen based on previous studies that suggested medicinal plants as non-drug treatments to eliminate *** *** three-dimensional structure model of the CagA oncoprotein of ***(receptor)was obtained through molecular modeling using computational tools from the I-Tasser platform,employing the threading *** primary sequence of CagA was sourced from GenBank(BAK52797.1).A screening was conducted to identify binding sites in the structure of the CagA oncoprotein that could potentially interact with the ligands,utilizing the GRaSP online *** the ligands and receptor were prepared for molecular docking using AutoDock Tools 4(ADT)software,and the simulations were carried out using a combination of ADT and AutoDock Vina v.1.2.0 *** sets of simulations were performed:One involving the central region of CagA with phenolic compounds,and another involvi

关键词： CagA oncoprotein Phenolic compounds Helicobacter pylori In silico analyses Medicinal plants Prospective analysis

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From Simulation to Reality: A Comprehensive Study on the Efficacy of a Rotating Monopolar and Bipolar Radiofrequency System through In-Silico Modeling and Pre-Clinical and Clinical Validation

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Journal of Biomedical Science and Engineering 2024年第6期17卷 107-128页

作者： Gregorio Viera Mármol ana Lorena Urbano Bojorge Alicia Robledo Jorge José Antonio Ferrández Martínez Olalla Calvo Lozano High Technology Products S.L.U. (Sinclair) Barcelona Spain

Background: Skin aging is an unavoidable process aggravated by environmental agents. Among other energy devices, non-invasive radiofrequency (RF) technology is widely used for skin tightening and body contouring as it is simpler and more affordable than other technologies that also minimize pain and side-effects. However, most of the current RF devices do not provide automatic skin temperature control and it is difficult to achieve controlled, deep, and harmless thermal increase, so treatment performance and safety is dependent on the operator’s movements and expertise. Objective: To show the potential of numerical simulations for optimizing the design of monopolar and bipolar RF electrodes that are capable of providing homogeneous, deep and controlled heating. Materials and methods: In-silico models were developed and analyzed using Comsol Multiphysics software to simulate the RF effect produced in tissue by rotating monopolar and bipolar electrodes with different geometries from the Sculpt & Shape RF device (Sinclair, Spain), operating at frequencies of 0.5 and 1 MHz. Ex-vivo and in-vivo proof-of-concept tests were carried out to validate the simulations. Finally, treatments were performed on 16 subjects and a total of 78 body areas to assess the clinical results generated by the RF electrodes for skin tightening and body contouring. Results: In-silico studies emulated the superficial and deep dispersion of heat due to the release of RF energy into human skin tissue. The rotating electrodes (monopolar and bipolar) and the selected RF frequency (0.5 and 1 MHz) determined the homogeneity of the thermal distribution, the penetration depth (between 4.37 mm and 25.0 mm) and the heating dynamics (between 30 and 100 seconds to reach the target skin temperature), which were confirmed by ex-vivo and in-vivo tests. In addition, real treatments on facial and body areas using skin temperatures of between 43˚C and 44˚C showed consistent results with good clinical efficacy for

关键词： Comsol Multiphysics Simulations Radiofrequency Skin Tightening Fat Reduction Body Contouring Cellulite

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Neotropical mustelids: fecal metabolome diversity and its potential for taxonomic discrimination

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Integrative Zoology 2023年第3期18卷 518-529页

作者： Lana Resende de ALMEIDA Marina Amaral ALVES ana maria Obino MASTELLA Rafael GARRETT maria João Ramos PEREIRA Bird and Mammal Evolution Systematics and Ecology LabPrograma de Pós-Graduação em Biologia AnimalUniversidade Federal do Rio Grande do SulPorto AlegreRio Grande do SulBrazil Programa de Pós-Graduação em Biologia Animal Universidade Federal do Rio Grande do SulPorto AlegreRio Grande do SulBrazil Chemistry Institute Metabolomics Laboratory(LabMeta–LADETEC/IQ–UFRJ)Avenida Horácio MacedoFederal University of Rio de JaneiroRio de JaneiroRJBrazil Walter Mors Institute of Research on Natural Products Universidade Federal do Rio de JaneiroRio de JaneiroRJBrazil

Chemical proﬁles of non-invasive biological material,such as feces,have great potential to study elusive animals or those with low population ***,we use a metabolomic approach to evaluate Neotropical mustelids as a biological model to describe the diversity of the metabolites present in fecal samples,as well as to evaluate the potential of chemical proﬁles for taxonomic *** collected fecal samples from captive individuals of 5 species of mustelids occurring in Brazil and analyzed them by liquid chromatography coupled to high-resolution mass *** 200 compounds have been annotated;“bile acids,alcohols and derivatives”was the most expressive class in the metabolome of all the *** successfully discriminated 3 taxonomic groups:1—tayra(Eira barbara);2—otters(Lontra longicaudis and Pteronura brasiliensis;1);and 3—grisons(Galictis vittata and Galictis cuja).Several compounds seemed to be associated with food intake and the digestive process,while others were found for theﬁrst time in Neotropical *** concluded that mustelids show high metabolome diversity and that species-speciﬁc identiﬁcation through metabolomic proﬁles is possible,thus contributing to the development and implementation of additional non-invasive approaches in the study of mustelids.

关键词： chemical proﬁles ecology high-resolution mass spectrometry metabolomics Mustelidae

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Periodontal disease:A silent factor in the development and progression of diabetic retinopathy

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World Journal of Diabetes 2024年第8期15卷 1672-1676页

作者： Sarah Monserrat LomelíMartínez Irán Cortés Trujillo Melissa Martínez Nieto ana Esther Mercado González Department of Medical and Life Sciences Centro Universitario de la CiénegaUniversidad de GuadalajaraOcotlán 47810Mexico Master of Public Health Department of Wellbeing and SustainableCentro Universitario del NorteUniversidad de GuadalajaraColotlán 46200Mexico Periodontics Program Department of Integrated Dentistry ClinicsCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajara 44340Mexico Antiguo Hospital Civil de Guadalajara“Fray Antonio Alcalde” Guadalajara 44280Mexico

The global increase in the prevalence of type 2 diabetes mellitus(T2DM)and its complications presents significant challenges to public ***,periodontal disease(PD)was recognized as a factor that is likely to influence the progression of T2DM and its complications due to its potential to exacerbate systemic inflammation and oxidative *** this editorial,we comment on the article published by Thazhe Poyil et al in the very recent issue of the World Journal of Diabetes in 2024,which investigated the correlation between PD and diabetic retinopathy(DR)in T2DM patients,with emphasis on the association between periodontal swollen surface area,glycated hemoglobin(HbA1c),interleukin-6(IL-6),and lipoprotein(a).The findings by Thazhe Poyil et al are significant as they demonstrate a strong link between PD and DR in T2DM *** correlation highlights the importance of addressing periodontal health in diabetes management to potentially reduce the risk and severity of DR,a complication of *** integration of periodontal evaluation and treatment into diabetes care protocols may lead to improved glycemic control and better overall outcomes for T2DM patients.A few studies have established an interconnection between PD and diabetic complication,specifically DR,in T2DM patients,which we aim to highlight in this *** was placed on the different mechanisms that suggest a bidirectional relationship between PD and T2DM,where the presence of periodontal inflammation negatively influenced glycemic control and contributed to the development and progression of DR through shared inflammatory and vascular *** article highlights the importance of collaboration amongst diabetes specialists,ophthalmologists,periodontists,and public health professionals to advance the prevention,early detection,and treatment of PD and *** will improve the health and quality of life of T2DM ***,the editorial highlights the need for further re

关键词： Type 2 diabetes mellitus Periodontal disease Periodontitis Diabetic retinopathy Editorial

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From strength to precision: A systematic review exploring the clinical utility of 7-Tesla magnetic resonance imaging in abdominal imaging

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World Journal of Radiology 2024年第1期16卷 20-31页

作者： Arosh S Perera Molligoda Arachchige ana Claudia Teixeira de Castro Gonçalves Ortega Federica Catapano Letterio S Politi Michael N Hoff Faculty of Medicine Humanitas UniversityPieve Emanuele 20072MilanItaly Department of Biomedical Sciences Humanitas UniversityPieve Emanuele 20072MilanItaly IRCCS Humanitas Research Hospital Rozzano 20089MilanItaly Department of Neuroradiology IRCCS Humanitas Research HospitalRozzano 20089MilanItaly Department of Radiology and Biomedical Imaging University of CaliforniaSan FranciscoCA 94143United States

BACKGROUND After approval for clinical use in 2017 early investigations of ultra-high-field abdominal magnetic resonance imaging(MRI)have demonstrated the feasibility as well as diagnostic capabilities of liver,kidney,and prostate MRI at ***,the elevation of the field strength to 7-Tesla not only brought advantages to abdominal MRI but also presented considerable challenges and drawbacks,primarily stemming from heightened artifacts and limitations in Specific Absorption Rate,***,evidence in the literature is relatively scarce concerning human studies in comparison to phantom/animal studies which necessitates an investigation into the evidence so far in humans and summarizing all relevant *** To offer a comprehensive overview of current literature on clinical abdominal 7T MRI that emphasizes current trends,details relevant challenges,and provides a concise set of potential *** This systematic review adheres to Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines.A PubMed search,utilizing Medical Subject Headings terms such as"7-Tesla"and organ-specific terms,was conducted for articles published between January 1,1985,and July 25,*** criteria included studies exploring 7T MRI for imaging human abdominal organs,encompassing various study types(in-vivo/ex-vivo,method development,reviews/meta-analyses).Exclusion criteria involved animal studies and those lacking extractable *** selection involved initial identification via title/abstract,followed by a full-text review by two researchers,with discrepancies resolved through *** extraction covered publication details,study design,population,sample size,7T MRI protocol,image characteristics,endpoints,and *** The systematic review included a total of 21 *** distribution of clinical 7T abdominal imaging studies revealed a predominant focus on the prostate(n=8),followed by the kidney(n=6)and the hepato

关键词： 7-Tesla magnetic resonance imaging Abdominal Prostate Kidney Renal Pancreas Hepatobiliary Liver Small bowel

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