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chemical-structural changes of Organic Matter in a semi-Arid soil After Organic Amendment

Pedosphere 2012年第3期22卷 283-293页

作者： c.nicols G.MAscIANDARO T.HERNNDEZ c.GARcIA centro de Edafología y Biología Aplicada del segura (cEBAs-csIc) Department of Soil and Water Conservation and Organic Wastes ManagementCampus Universitario de EspinardoP.O.160Murcia 3010 (Spain) consiglio Nazionale delle Ricerche (cNR) Istituto per lo Studio degli Ecosistemi (ISE)-Sezione di Chimica del SuoloArea della RicercaVia Moruzzi 1Pisa 56124 (Italy)

A 9-month incubation experiment using composted and non-composted amendments derived from vine pruning waste and sewage sludge was carried out to study the effects of the nature and stability of organic amendments on the structural composition of organic matter (OM) in a semi-arid *** changes of soil OM,both in the whole soil and in the extractable carbon with pyrophosphate,were evaluated by pyrolysis-gas chromatography and chemical *** the end of the experiment,the soils amended with pruning waste exhibited less organic carbon loss than those receiving sewage *** non-composted residues increased the aliphatic-pyrolytic products of the OM,both in the whole soil and also in the pyrophosphate extract,with the products derived from peptides and proteins being significantly *** 9 months,in the soils amended with pruning waste the relative abundance of phenolic-pyrolytic products derived from phenolic compounds,lignin and proteins in the whole soil tended to increase more than those in the soils amended with sewage ***,the extractable OM with pyrophosphate in the soils amended with composted residues tended to have higher contents of these phenolic-pyrolytic products than that in non-composted ***,despite the stability of pruning waste,the composting of this material promoted the incorporation of phenolic compounds to the soil *** pyrolytic indices (furfural/pyrrole and aliphatic/aromatic ratios) showed the diminution of aliphatic compounds and the increase of aromatic compounds,indicating the stabilization of the OM in the amended soils after 9 *** conclusion,the changes of soil OM depend on the nature and stability of the organic amendments,with composted vine pruning waste favouring humification.

关键词： degraded soil pyrolysis-gas chromatography pyrophosphate extract sewage sludge vine pruning waste

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Tracing changes in the Microbial community of a Hydrocarbon-Polluted soil by culture-Dependent Proteomics

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Pedosphere 2010年第4期20卷 479-485页

作者： F.BAsTIDA c.nicols J.L.MORENO T.HERNNDEZ c.GARcIA Department of soil and Water conservation Centro de Edafologia y Biologia Aplicada del Segura(CEBAS-CSIC)Campus Universitario de Espinardo

Hydrocarbon contamination may affect the soil microbial community, in terms of both diversity and function. A laboratory experiment was set-up, with a semi-arid control soil and the same soil but artificially contaminated with diesel oil, to follow changes in the dominant species of the microbial community in the hydrocarbon-polluted soil via proteomics. Analysis of the proteins extracted from enriched cultures growing in Luria-Bertani （LB） media showed a change in the microbial community. The majority of the proteins were related to gIycolysis pathways, structural or protein synthesis. The results showed a relative increase in the complexity of the soil microbial community with hydrocarbon contamination, especially after 15 days of incubation. species such as Ralstonia solanacearum, synechococcus elongatus and different clostridium sp. were adapted to contamination, not appearing in the control soil, although Bacillus sp. dominated the growing in LB in any of the treatments. We conclude that the identification of microbial species in soil extracts by culture-dependent proteomics is able to partially explain the changes in the diversity of the soil microbial community in hydrocarbon polluted semi-arid soils, but this information is much more limited than that provided by molecular methods.

关键词： culture dependent hydrocarbon contamination microbial diversity proteomics semiarid soil

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comparison of three-dimensional fluorescence analysis methods for predicting formation of trihalomethanes and haloacetic acids

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Journal of Environmental sciences 2015年第1期27卷 159-167页

作者： nicolás M.Peleato Robert c.Andrews Department of civil Engineering University of Toronto

This work investigated the application of several fluorescence excitation–emission matrix analysis methods as natural organic matter（NOM） indicators for use in predicting the formation of trihalomethanes（THMs） and haloacetic acids（HAAs）. Waters from four different sources（two rivers and two lakes） were subjected to jar testing followed by 24 hr disinfection by-product formation tests using chlorine. NOM was quantified using three common measures： dissolved organic carbon, ultraviolet absorbance at 254 nm, and specific ultraviolet absorbance as well as by principal component analysis, peak picking,and parallel factor analysis of fluorescence spectra. Based on multi-linear modeling of THMs and HAAs, principle component（Pc） scores resulted in the lowest mean squared prediction error of cross-folded test sets（THMs： 43.7（μg/L）^2, HAAs： 233.3（μg/L）^2）. Inclusion of principle components representative of protein-like material significantly decreased prediction error for both THMs and HAAs. Parallel factor analysis did not identify a protein-like component and resulted in prediction errors similar to traditional NOM surrogates as well as fluorescence peak picking. These results support the value of fluorescence excitation–emission matrix–principal component analysis as a suitable NOM indicator in predicting the formation of THMs and HAAs for the water sources studied.

关键词： Natural organic matter Fluorescence Principal component analysis PARAFAc Disinfection byproducts Drinking water

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status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

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chinese Medicine and culture 2023年第4期6卷 339-348页

作者： nicolás Viotti school of social sciences National University of San Martín(UNSAM)San Martín 5570Argentina

Various resources of the so-called traditional chinese medicine, such as taijiquan, massage, diets, or acupuncture, have become widely available in the everyday therapeutic culture of contemporary Argentina. While these resources can be found in the first half of the 20th century, it is evident that from the 1960s onward their presence is more evident, with a strong emphasis from the 1980s on. This article aims to describe the reception and popularization of body and therapeutic techniques of traditional chinese medicine in Argentina in the 1980s through the case of Daniel Alegre, a key figure in the dissemination of chinese therapeutic techniques. To do so, it focuses on certain key mediators in the popularization of techniques such as taijiquan and chinese massage: teachers, promoters, and specialized magazines. All these mediators are key artifacts in the processes of massification and dissemination of traditional chinese medicine in a broader emerging horizon associated with two simultaneous processes, the chinese cultural transnationalization and the boom of new forms of holistic management of personal well-being.

关键词： Argentina Daniel Alegre Taijiquan Traditional chinese therapy

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current and future therapeutic strategies for the treatment of retinal neurodegenerative diseases

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Neural Regeneration Research 2022年第1期17卷 103-104页

作者： Victoria Maneu Pedro Lax nicolás cuenca Department of Optics Pharmacology and AnatomyUniversity of AlicanteAlicanteSpain Department of Physiology Genetics and MicrobiologyUniversity of AlicanteAlicanteSpain

The complex and mostly multiple and unknown aetiology of neurodegenerative diseases always give way to an intricate scenario of dying tissue that involves multiple cell mediators and cell *** neurodegenerative diseases of the central nervous system(cNs)share common mechanisms,regardless their origin:oxidative stress,neuroinflammation and cell ***,retinal degenerative diseases,with or without a genetic cause,as retinitis pigmentosa(RP),glaucoma,agerelated macular degeneration(AMD)or diabetic retinopathy(DR)do not differ in their basic mechanisms of cell death neither one to another,nor from those observed in other cNs diseases as Parkinson’s or Alzheimer’s(cuenca et al.,2014).Indeed,the therapeutic findings should be able to be more or less easily extrapolated between these conditions,as far as they are directed to common dartboards.

关键词： diseases degenerative therapeutic

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MINI-EX:Integrative inference of single-cell gene regulatory networks in plants

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Molecular Plant 2022年第11期15卷 1807-1824页

作者： camilla Ferrari nicolás Manosalva Pérez Klaas Vandepoele Department of Plant Biotechnology and Bioinformatics Ghent University9052 GhentBelgium center for Plant systems Biology VIB9052 GhentBelgium Bioinformatics Institute Ghent Ghent University9052 GhentBelgium

Multicellular organisms,such as plants,are characterized by highly specialized and tightly regulated cell populations,establishing specific morphological structures and executing distinct *** regulatory networks(GRNs)describe condition-specific interactions of transcription factors(TFs)regulating the expression of target genes,underpinning these specific *** efficient and validated methods to identify cell-type-specific GRNs from single-cell data in plants are lacking,limiting our understanding of the organization of specific cell types in both model species and crops,we developed MINI-EX(Motif-Informed Network Inference based on single-cell EXpression data),an integrative approach to infer cell-type-specific networks in ***-EX uses single-cell transcriptomic data to define expression-based networks and integrates TF motif information to filter the inferred regulons,resulting in networks with increased ***,regulons are assigned to different cell types,leveraging cell-specific expression,and candidate regulators are prioritized using network centrality measures,functional annotations,and expression *** embedded prioritization strategy offers a unique and efficient means to unravel signaling cascades in specific cell types controlling a biological process of *** demonstrate the stability of MINI-EX toward input data sets with low number of cells and its robustness toward missing data,and show that it infers state-of-the-art networks with a better performance compared with other related single-cell network ***-EX successfully identifies key regulators controlling root development in Arabidopsis and rice,leaf development in Arabidopsis,and ear development in maize,enhancing our understanding of cell-type-specific regulation and unraveling the roles of different regulators controlling the development of specific cell types in plants.

关键词： single-cell RNA-seq gene regulatory network transcription factors systems biology

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Empirical mode decomposition of multiphase flows in porous media:characteristic scales and speed of convergence

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Petroleum science 2020年第1期17卷 153-167页

作者： nicolás Echebarrena Pablo D.Mininni Gustavo A.Moreno YPF-Technology EnsenadaBuenos AiresArgentina cONIcET Buenos AiresArgentina Physics Department IFIBASchool of Exact and Natural SciencesUniversity of Buenos AiresCONICETUniversity Campus1428 Buenos AiresArgentina

We apply a proper orthogonal decomposition(POD)to data stemming from numerical simulations of a fingering instability in a multiphase flow passing through obstacles in a porous medium,to study water injection processes in the production of hydrocarbon *** show that the time evolution of a properly defined flow correlation length can be used to identify the onset of the fingering *** of characteristic lengths for each of the modes resulting from the POD provides further information on the dynamics of the ***,using numerical simulations with different viscosity ratios,we show that the convergence of the POD depends non-trivially on whether the fingering instability develops or *** result has implications on proposed methods to decrease the dimensionality of the problem by deriving reduced dynamical systems after truncating the system’s governing equations to a few POD modes.

关键词： Two-phase flow Empirical mode decomposition Viscous fingering Porous media

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The race for quantum supremacy: pushing the classical limit for photonic hardware

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National science Review 2019年第1期6卷 2-3页

作者： nicolò spagnolo Fabio sciarrino Quantum Lab Dipartimento di FisicaSapienza Università di Roma

The strong efforts towards the realization of scalable quantum computing are motivated by the promise of super-polynomial speed-up in several computational tasks.A first fundamental step in this route is to provide concrete evidence of ‘quantum supremacy’. such a regime is obtained when a quantum device is capable of solving a specific problem faster than the best classical hardware. A serious attempt to provide a first demonstration of quantum speed-up with affordable resources is represented by boson sampling [1,2],

关键词： The race for quantum supremacy pushing the classical limit for photonic hardware

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Linking land and sea： Towards global reconstructions of the Jurassic world

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Episodes 2008年第4期31卷 420-422页

作者： nicol Morton Le chardon Quartier Brugere 07200 Vogtie France

The Jurassic is traditionally famous for shallow marine sediments that are often very fossiliferous, notably in Europe, where the standard chronostratigraphic subdivisions were established and defined. However, widespread marginal and non-marine Jurassic sediments are also known, and are of great importance for the wellpreserved terrestrial biotas they contain, as well as for their hydrocarbon and coal reserves. IGcP Project 506 is directed towards finding means of correlation between marine and non-marine Jurassic rocks, as a foundation for a better understanding of the evolution of the Earth during the Jurassic Period.

关键词：侏罗纪陆地海洋整体重建

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