02575nam 2200361 450 991076589220332120230219094513.03-03842-607-5(CKB)5400000000000468(NjHacI)995400000000000468(EXLCZ)99540000000000046820230219d2017 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierLC-MS/MS method for mycotoxin analysis /edited by Aldo LaganàBasel, Switzerland :MDPI,[2017]©20171 online resource (194 pages) illustrationsIncludes bibliographical references.Mycotoxins are secondary metabolites produced by some species of filamentous fungi belonging to Fusarium, Aspergillus, Penicillium, Claviceps and Alternaria genera. The biochemical significance of mycotoxins in fungal metabolism has not always been fully clarified; however, the main concern for mycotoxins is driven by the deleterious effects they can exert on human and animal health. Structurally, the mycotoxins currently known belong to heterogeneous chemical classes, therefore the toxic effects they can induce are highly diverse (e.g., cancerogenic and immunosuppressive effects). The main route of human exposure to mycotoxins is by intake of contaminated food, either directly from contaminated agricultural products, or indirectly from residues and metabolites present in foods of animal origin. Immunochemical methods are generally used for the fast screening of mycotoxin presence; however, for confirmation purposes, analytical methods based on high-performance liquid chromatography (LC) are preferred, especially when coupled with tandem mass spectrometry (MS/MS), which allows the determination of multiclass mycotoxins in a single analysis. Moreover, the technical innovations available in LC-MS/MS instrumentation are prompting its application to the monitoring of contaminants in food and feed. The aim of this paper collection, constituted by ten research articles and one review, is to provide the reader with an overview on the novelties and capabilities in LC-MS/MS-based multi-mycotoxin methods, also including the investigation of emerging and modified mycotoxins.MycotoxinsMycotoxins.615.95295Laganà AldoNjHacINjHaclBOOK9910765892203321LC-MS2936244UNINA04864nam 22008055 450 991051054240332120251223172416.03-030-79385-010.1007/978-3-030-79385-2(MiAaPQ)EBC6809652(Au-PeEL)EBL6809652(CKB)19919501000041(OCoLC)1287129712(PPN)258839198(BIP)82317641(BIP)80380344(DE-He213)978-3-030-79385-2(EXLCZ)991991950100004120211119d2021 u| 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierNumerical Methods for Elliptic and Parabolic Partial Differential Equations With contributions by Andreas Rupp /by Peter Knabner, Lutz Angermann2nd ed. 2021.Cham :Springer International Publishing :Imprint: Springer,2021.1 online resource (811 pages)Texts in Applied Mathematics,2196-9949 ;44Print version: Knabner, Peter Numerical Methods for Elliptic and Parabolic Partial Differential Equations Cham : Springer International Publishing AG,c2022 9783030793845 For Example: Modelling Processes in Porous Media with Differential Equations -- For the Beginning: The Finite Difference Method for the Poisson Equation -- The Finite Element Method for the Poisson Equation -- The Finite Element Method for Linear Elliptic Boundary Value Problems of Second Order -- Grid Generation and A Posteriori Error Estimation -- Iterative Methods for Systems of Linear Equations -- Beyond Coercivity, Consistency and Conformity -- Mixed and Nonconforming Discretization Methods -- The Finite Volume Method -- Discretization Methods for Parabolic Initial Boundary Value Problems -- Discretization Methods for Convection-Dominated Problems -- An Outlook to Nonlinear Partial Differential Equations -- Appendices.This graduate-level text provides an application oriented introduction to the numerical methods for elliptic and parabolic partial differential equations. It covers finite difference, finite element, and finite volume methods, interweaving theory and applications throughout. The book examines modern topics such as adaptive methods, multilevel methods, and methods for convection-dominated problems and includes detailed illustrations and extensive exercises. For students with mathematics major it is an excellent introduction to the theory and methods, guiding them in the selection of methods and helping them to understand and pursue finite element programming. For engineering and physics students it provides a general framework for the formulation and analysis of methods. This second edition sees additional chapters on mixed discretization and on generalizing and unifying known approaches; broader applications on systems of diffusion, convection and reaction; enhanced chapters on node-centered finite volume methods and methods of convection-dominated problems, specifically treating the now-popular cell-centered finite volume method; and the consideration of realistic formulations beyond the Poisson's equation for all models and methods.Texts in Applied Mathematics,2196-9949 ;44Numerical analysisMathematical analysisMathematicsMathematicsData processingMathematical physicsEngineering mathematicsEngineeringData processingNumerical AnalysisAnalysisApplications of MathematicsComputational Mathematics and Numerical AnalysisTheoretical, Mathematical and Computational PhysicsMathematical and Computational Engineering ApplicationsNumerical analysis.Mathematical analysis.Mathematics.MathematicsData processing.Mathematical physics.Engineering mathematics.EngineeringData processing.Numerical Analysis.Analysis.Applications of Mathematics.Computational Mathematics and Numerical Analysis.Theoretical, Mathematical and Computational Physics.Mathematical and Computational Engineering Applications.515.353Knabner Peter149470Angermann LutzRupp AndreasMiAaPQMiAaPQMiAaPQBOOK9910510542403321Numerical methods for elliptic and parabolic partial differential equations2905046UNINA