Search results for "MBL"

showing 10 items of 1636 documents

Comparison of different assembly and annotation tools on analysis of simulated viral metagenomic communities in the gut

2013

Abstract Background The main limitations in the analysis of viral metagenomes are perhaps the high genetic variability and the lack of information in extant databases. To address these issues, several bioinformatic tools have been specifically designed or adapted for metagenomics by improving read assembly and creating more sensitive methods for homology detection. This study compares the performance of different available assemblers and taxonomic annotation software using simulated viral-metagenomic data. Results We simulated two 454 viral metagenomes using genomes from NCBI's RefSeq database based on the list of actual viruses found in previously published metagenomes. Three different ass…

Taxonomic classificationComputational biologyBiologyGenomeContig MappingContig MappingUser-Computer Interface03 medical and health sciencesAnnotationDatabases GeneticGeneticsRefSeqCluster AnalysisHumansComputer SimulationTaxonomic rank030304 developmental biologyDe Bruijn sequenceInternetPrincipal Component Analysis0303 health sciencesBacteriaContigChimera identification030306 microbiologyComputational BiologyFunctional annotationViral metagenomeIntestinesAssembler performanceMetagenomicsVirusesMetagenomicsAlgorithmsResearch ArticleBiotechnologyBMC Genomics
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Interfacial Self-Assembly to Spatially Organize Graphene Oxide Into Hierarchical and Bioactive Structures

2020

Multicomponent self-assembly holds great promise for the generation of complex and functional biomaterials with hierarchical microstructure. Here, we describe the use of supramolecular co-assembly between an elastin-like recombinamer (ELR5) and a peptide amphiphile (PA) to organize graphene oxide (GO) flakes into bioactive structures across multiple scales. The process takes advantage of a reaction—diffusion mechanism to enable the incorporation and spatial organization of GO within multiple ELR5/PA layers. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and ImageJ software were used to demonstrate the hierarchical organization of GO flakes within the ELR5/PA lay…

TechnologyMaterials scienceBiocompatibilityScanning electron microscopeMaterials Science (miscellaneous)Materials Sciencecomposite materialsFABRICATIONMaterials Science Multidisciplinaryhierarchical biomaterialsNanotechnology02 engineering and technology010402 general chemistrylcsh:Technology01 natural scienceselastin-like recombinamerlaw.inventionDESIGNlawPeptide amphiphileBIOMATERIALS0912 Materials EngineeringCHITOSANScience & Technology1007 Nanotechnologylcsh:TGrapheneSCAFFOLD021001 nanoscience & nanotechnologyMicrostructurepeptide amphiphiles0104 chemical sciencesmulticomponent self-assemblyDIFFERENTIATIONMembraneTransmission electron microscopygraphene oxideSelf-assembly0210 nano-technologyFILMFrontiers in Materials
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Plasmonic nanostructures through DNA-assisted lithography

2018

DALI combines DNA origami with conventional top-down fabrication for creating designer high-resolution plasmonic nanostructures.

TechnologyMaterials scienceFabricationmaterials scienceta221ta220Nanotechnology02 engineering and technologySpectrum Analysis Raman010402 general chemistry01 natural sciencesplasmonicssymbols.namesakenanorakenteetnanostructuresDNA origamiDNA nanotechnologyComputer SimulationnanolithographyLithographyNanoscopic scaleResearch ArticlesPlasmonMultidisciplinaryta114PhysicsSciAdv r-articlesMetamaterialself-assemblyDNA021001 nanoscience & nanotechnologyoptics0104 chemical sciencesChemistryTemplateApplied Sciences and EngineeringsymbolsNucleic Acid ConformationPrintingDNA origami0210 nano-technologyRaman spectroscopyBiotechnologyResearch Article
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Photomodulation of Two-Dimensional Self-Assembly of Azobenzene-Hexa-peri-hexabenzocoronene-Azobenzene Triads

2019

International audience; Achieving exquisite control over self-assembly of functional polycyclic aromatic hydrocarbons (PAH) and nanographene (NG) is essential for their exploitation as active elements in (nano)technological applications. In the framework of our effort to leverage their functional complexity, we designed and synthesized two hexa-peri-hexabenzocoronene (HBC) triads, pAHA and oAHA, decorated with two light-responsive azobenzene moieties at the pseudo-para and ortho positions, respectively. Their photoisomerization in solution is demonstrated by UV–vis absorption. 1H NMR measurements of oAHA suggested 23% of Z-form can be obtained at a photostationary state with UV irradiation …

Technology[CHIM.MATE] Chemical Sciences/Material chemistryGeneral Chemical EngineeringHexa-peri-hexabenzocoronene[CHIM.MATE]Chemical Sciences/Material chemistry02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistry01 natural sciences0104 chemical scienceschemistry.chemical_compoundAzobenzenechemistryMaterials ChemistrySelf-assembly0210 nano-technologyddc:600
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Non-Linear Hysteretic Instability in Rotating Machinery

2013

The destabilizing influence of the shaft hysteresis on the supercritical whirl of rotating machines can be efficiently counterbalanced by proper external dissipative sources in the supports and/or anisotropic suspension systems. The hysteretic effect may be treated either by dry or viscous models obtaining different but somehow similar results in the hypothesis of small dissipation levels. Thus the linear viscous assumption is often accepted as a crude approximation for a straightforward analysis of the whirling instability. Nevertheless the internal friction should be regarded most likely as non-linear and could be approximated for example by Coulombian models taking thus into account also the releasing effect of some shrink-fit coupling present in the mechanical assembly.
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Integrazione di celle fotovoltaiche ibride nel vetromattone

2012

L’invenzione riguarda l’integrazione del vetromattone con celle solari ibride (organiche/inorganiche), conosciute come Dye-sensitized Solar Cell (DSC). La combinazione del vetromattone con le DSC consente di migliorare le prestazioni del prodotto originario rendendolo in grado di produrre energia pulita. Le caratteristiche di trasparenza e isolamento termo-acustico del prodotto possono essere regolate agendo sulla configurazione delle DSC. Il prodotto può essere assemblato a formare pannelli fotovoltaici per la realizzazione di facciate traslucide energeticamente “attive” in varie condizioni luminose (condizioni di luce diffusa o artificiale) e indipendentemente dall’angolo di radiazione so…

The integration of Dye-sensitized Solar Cell (DSC) with the glassblock is disclosed. The combination of the two technological elements the glassblock and the DSC module enhance their own peculiarities. The final complete product is ready-made for installation owns the qualities of the glassblock and produces sustainable energy at the same time. The transparency and the thermo-acoustic insulation may be modulated according to the specific requirements of each case of installation. The product may be used for example to create PV panels for glazed and translucent façades that are able to perform efficiently in all light conditions (even in diffuse light also converting internal artificial light) that are not dependant on the angle of the solar radiation and do not suffer from the high operative temperatures of functioning due to the peculiarities of the DSCs. DSCs are made of economic and biocompatible materials and are produced with low-cost and highly productive printing methods on rigid or flexible substrates. With the integration of DSC modules with the glassblock PV panels coincide with the envelope itself so that they do not need any further structures to be installed on and allow the possibility of subtract from the price of the panel the price of the substituted building element allowing further economies. DSCs can be printed in different colours and with various patterns offering to designers and customers the possibility of intervening on the glassblock aesthetical aspect also taking advantage of the peculiar modularity of the glassblock for larger compositions of drawings on the building’s façade. Seven Hypotheses of integration are discussed in order to obtain DSC-integrated glassblock ready for the construction of a precast and dry-assembled PV panel which can use the horizontal and vertical cavities between the glassblocks to house plastic profiles where the electric interconnections and the steel bars -useful for improve the mechanical resistance of the panel- are integrated.Settore ICAR/10 - Architettura Tecnica
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Pannello precompresso di vetromattoni assemblati a secco per la realizzazione di involucri traslucidi

2012

L’invenzione riguarda la realizzazione di un pannello di vetromattoni montati “a secco” -da impiegare per la realizzazione di involucri edilizi traslucidi anche nel caso di edifici alti- che è in grado di rispondere adeguatamente alle sollecitazioni orizzontali (quali quelle dovute a vento e sisma) grazie all’applicazione della tecnica della precompressione mondirezionale. Per offrire una risposta ai limiti imposti dalla tecnica di assemblaggio tradizionale dei vetromattoni (“ad umido”), l’applicazione della precompressione consente, infatti, di dare ai pannelli preassemblati “a secco” una rigidezza adeguata anche in direzione normale al loro piano di posa, sfruttando le buone caratteristic…

The invention is related to the construction of a glassblock panel “dry assembled” that can be used to build translucent building envelope even in high-rise buildings. This panel is able to contrast the horizontal actions due to wind and earthquake by means of the application of unidirectional pre-stressing technique. To overcame the limits due to the “wet assembly” system traditionally used to assemble the glassblocks the use of prestressing technique allow the panels to have an adequate mechanical resistance against the actions perpendicular to their installation plane. In this configuration the mechanical resistance of the glassblocks is exploited. The unidirectional prestressing (along the prevalent dimension of the panel) is obtained through the grip of the nuts inserted in the steel bars that are housed inside the glassblocks supporting profiles positioned in the vertical cavities between the glassblocks and passing through the horizontal profiles useful to separate glassblock rows from each other. The proper nuts grip opposing to the steel plates positioned at the top and bottom of the panel allow to prestress the panel. The steel plate are positioned on a plastic plate fixed to the lateral faces of the glassblocks by means of resins.Settore ICAR/10 - Architettura Tecnica
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Conjunction, Disjunction and Iterated Conditioning of Conditional Events

2013

Starting from a recent paper by S. Kaufmann, we introduce a notion of conjunction of two conditional events and then we analyze it in the setting of coherence. We give a representation of the conjoined conditional and we show that this new object is a conditional random quantity, whose set of possible values normally contains the probabilities assessed for the two conditional events. We examine some cases of logical dependencies, where the conjunction is a conditional event; moreover, we give the lower and upper bounds on the conjunction. We also examine an apparent paradox concerning stochastic independence which can actually be explained in terms of uncorrelation. We briefly introduce the…

Theoretical computer scienceSettore MAT/06 - Probabilita' E Statistica MatematicaComputer scienceProbabilistic logicCoherence (philosophical gambling strategy)Conditional events conditional random quantities conjunction disjunction iterated conditionalsConjunction (grammar)Set (abstract data type)Regular conditional probabilitydisjunction; conditional events; conjunction; conditional random quantities; iterated conditionals.Iterated functionRepresentation (mathematics)Settore SECS-S/01 - StatisticaMathematical economicsEvent (probability theory)
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Introspection and equilibrium selection in 2 � 2 matrix games

1994

Game theory lacks an explanation of how players' beliefs are formed and why they are in equilibrium. This is the reason why it has failed to make significant advances with the problem of equilibrium selection even for quite siniple games, as 2x2 games with two strict Nash equilibria. Our paper models the introspection process by which the selected equilibrium is achieved in this class of games. Players begin their analysis with imprecise priors, obtained under weak restrictions formulated as Axioms. For a large class of reasoning dynamics we obtain as the solution the risk dominant Nash equilibrium.

TheoryofComputation_MISCELLANEOUSStatistics and ProbabilityComputer Science::Computer Science and Game TheoryEconomics and EconometricsSequential equilibriumMathematical optimizationComputingMilieux_PERSONALCOMPUTINGSymmetric equilibriumTrembling hand perfect equilibriumTheoryofComputation_GENERALsymbols.namesakeMathematics (miscellaneous)Nash equilibriumEquilibrium selectionBest responseEconomicssymbolsStatistics Probability and UncertaintyEpsilon-equilibriumSolution conceptMathematical economicsSocial Sciences (miscellaneous)International Journal of Game Theory
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Microcanonical Determination of the Interface Tension of Flat and Curved Interfaces from Monte Carlo Simulations

2012

The investigation of phase coexistence in systems with multi-component order parameters in finite systems is discussed, and as a generic example, Monte Carlo simulations of the two-dimensional q-state Potts model (q=30) on LxL square lattices (40<=L<=100) are presented. It is shown that the microcanonical ensemble is well-suited both to find the precise location of the first order phase transition and to obtain an accurate estimate for the interfacial free energy between coexisting ordered and disordered phases. For this purpose, a microcanonical version of the heatbath algorithm is implemented. The finite size behaviour of the loop in the curve describing the inverse temperature vers…

Thermal equilibriumPhysicsPhase transitionSpinodalStatistical Mechanics (cond-mat.stat-mech)CondensationMonte Carlo methodFOS: Physical sciencesCondensed Matter Physics01 natural sciences010305 fluids & plasmasMicrocanonical ensemblePhase (matter)0103 physical sciencesGeneral Materials ScienceStatistical physics010306 general physicsCondensed Matter - Statistical MechanicsPotts model
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