This article is based on the assumption that lyric poems generally share the fundamental constituents of story and discourse as well as the narrative act with narrative fiction in that they likewise ...feature a sequence of incidents (usually of a mental kind), mediate and shape it from a specific perspective and present it from a particular point of time vis-à-vis the sequence of incidents. A general outline of the narratological categories which may be applied to poetry analysis is given using William Wordsworth's "I wandered lonely as a cloud" as an illustrative example. The aim of the article is heuristic: the intention is not to blur the distinction between fiction and poetry and treat poems indiscriminately as narrative texts, but rather identify and highlight the specifically poetic forms and functions which instances of narrating adopt in poems. The main section of the article will then focus on the first of the three aspects mentioned, the modelling of poetic sequentiality, i.e. the specification of types of plot, plotting and presentation of plot in poetry and the analysis of their functions. Die liriese intrige: manifestasies van narratiwiteit in die poësie Hierdie artikel is gebaseer op die aanname dat liriese gedigte en verhalende tekste die fundamentele samestellende elemente van storie en verhaal, asook die vertelhandeling in gemeen het. Die rede hiervoor is dat albei soorte tekste bestaan uit 'n reeks gebeurtenisse (meestal van 'n mentale innerlike aard), wat gemedieër en gestruktureer word vanuit 'n bepaalde perspektief en gerepresenteer word vanuit 'n bepaalde moment in tyd teenoor die reeks gebeurtenisse as sodanig. 'n Oorsig van die narratologiese kategorieë wat toegepas kan word in die analise van die poësie word verskaf. "I wandered lonely as a cloud" van William Wordsworth word as voorbeeld gebruik. Die doel van die artikel is heuristies. Die intensie is nie om die onderskeid tusssen verhaal en gedig te vertroebel nie en ook nie om gedigte op onoordeelkundige wyse as verhalende tekste te behandel nie. Die doel is eerder om die spesifiek poëtiese vorms en funksies wat verhale en vertelling in gedig kan aanneem, te identifiseer en te beklemtoon. In die sentrale gedeelte van die artikel sal gefokus word op die drie reeds genoemde aspekte van narratiwiteit in gedigte, naamlik die strukturering van poëtiese opeenvolging (d.w.s. die spesifisering van bepaalde soorte "plot"), die verhaalmatige omvorming van die storiegegewens en die representasie van die verhaal (d.w.s. van die estetiese omvormde storiemateriaal) in gedigte en die analise van die funksies van hierdie drie aspekte in die poësie.
More than 10,000-fold enhanced magnetic resonance signals with >20-min signal lifetimes on universal biomolecular markers.
Conventional magnetic resonance (MR) faces serious sensitivity limitations ...which can be overcome by hyperpolarization methods, but the most common method (dynamic nuclear polarization) is complex and expensive, and applications are limited by short spin lifetimes (typically seconds) of biologically relevant molecules. We use a recently developed method, SABRE-SHEATH, to directly hyperpolarize
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magnetization and long-lived
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singlet spin order, with signal decay time constants of 5.8 and 23 minutes, respectively. We find >10,000-fold enhancements generating detectable nuclear MR signals that last for over an hour.
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-diazirines represent a class of particularly promising and versatile molecular tags, and can be incorporated into a wide range of biomolecules without significantly altering molecular function.
Kawasaki disease presenting as hepatitis GRECH, V; BUTTIGIEG, T; PORTELLI, A ...
Annals of tropical paediatrics,
12/2007, Letnik:
27, Številka:
4
Journal Article
Recenzirano
Kawasaki disease (KD) presenting with an acute hepatitic picture is exceedingly rare. A 3.5-year-old girl presented with acute hepatitis and went on to satisfy the criteria for the diagnosis of KD ...for which she was treated. There were no cardiac abnormalities or sequelae.
Celotno besedilo
Dostopno za:
DOBA, IJS, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
We quantify the accuracy of different non-self-consistent and self-consistent spin-orbit coupling (SOC) treatments in Kohn-Sham and hybrid density functional theory by providing a band-structure ...benchmark set for the valence and low-lying conduction energy bands of 103 inorganic compounds, covering chemical elements up to polonium. Reference energy band structures for the PBE density functional are obtained using the full-potential (linearized) augmented plane wave code wien2k, employing its self-consistent treatment of SOC including Dirac-type p1/2 orbitals in the basis set. We use this benchmark set to benchmark a computationally simpler, non-self-consistent all-electron treatment of SOC based on scalar-relativistic orbitals and numeric atom-centered orbital basis functions. For elements up to Z≈50, both treatments agree virtually exactly. For the heaviest elements considered (Tl, Pb, Bi, Po), the band-structure changes due to SOC are captured with a relative deviation of 11% or less. For different density functionals (PBE versus the hybrid HSE06), we show that the effect of spin-orbit coupling is usually similar but can be dissimilar if the qualitative features of the predicted underlying scalar-relativistic band structures do not agree. All band structures considered in this work are available online via the NOMAD repository to aid in future benchmark studies and methods development.
Corporate/collective moral responsibility is a thorny topic in business ethics and this paper argues that this is due a number of unacknowledged and connected epistemic issues. Firstly, CSR, ...Corporate Citizenship and many other research streams that are based on the assumption of collective and/or corporate moral responsibility are not compatible with Kantian ethics, consequentialism, or virtue ethics because corporate/collective responsibility violates the axioms and central hypotheses of these research programmes. Secondly, in the absence of a sound theoretical moral philosophical foundation, business ethicists have based their ideas on legal and political epistemologies, yet still claim to be ethics-based. Thirdly, research is often driven by an intention to
prove
that a specific social goal is right, not by open and critical inquiry. Finally, today, corporate/collective moral responsibility is widely accepted as the Truth as most researchers are unaware of any issues because they are untrained in philosophy. The paper identifies the confusion about the epistemic basis as a major impediment for delivering a thick concept of the role of corporations as moral agents. Thus, the paper does not argue against corporate or collective agency as such, but points out an obvious but forgotten paradox: corporate and collective personhood cannot, at the moment at least, be epistemologically grounded in the field in which business ethics claims to operate: moral philosophy.
Routine applications of electronic structure theory to molecules and periodic systems need to compute the electron density from given Hamiltonian and, in case of non-orthogonal basis sets, overlap ...matrices. System sizes can range from few to thousands or, in some examples, millions of atoms. Different discretization schemes (basis sets) and different system geometries (finite non-periodic vs. infinite periodic boundary conditions) yield matrices with different structures. The ELectronic Structure Infrastructure (ELSI) project provides an open-source software interface to facilitate the implementation and optimal use of high-performance solver libraries covering cubic scaling eigensolvers, linear scaling density-matrix-based algorithms, and other reduced scaling methods in between. In this paper, we present recent improvements and developments inside ELSI, mainly covering (1) new solvers connected to the interface, (2) matrix layout and communication adapted for parallel calculations of periodic and/or spin-polarized systems, (3) routines for density matrix extrapolation in geometry optimization and molecular dynamics calculations, and (4) general utilities such as parallel matrix I/O and JSON output. The ELSI interface has been integrated into four electronic structure code projects (DFTB+, DGDFT, FHI-aims, SIESTA), allowing us to rigorously benchmark the performance of the solvers on an equal footing. Based on results of a systematic set of large-scale benchmarks performed with Kohn–Sham density-functional theory and density-functional tight-binding theory, we identify factors that strongly affect the efficiency of the solvers, and propose a decision layer that assists with the solver selection process. As a result, we describe a reverse communication interface encoding matrix-free iterative solver strategies that are amenable, e.g., for use with planewave basis sets.
Routine applications of electronic structure theory to molecules and periodic systems need to compute the electron density from given Hamiltonian and, in case of non-orthogonal basis sets, overlap ...matrices. System sizes can range from few to thousands or, in some examples, millions of atoms. Different discretization schemes (basis sets) and different system geometries (finite non-periodic vs. infinite periodic boundary conditions) yield matrices with different structures. The ELectronic Structure Infrastructure (ELSI) project provides an open-source software interface to facilitate the implementation and optimal use of high-performance solver libraries covering cubic scaling eigensolvers, linear scaling density-matrix-based algorithms, and other reduced scaling methods in between. In this paper, we present recent improvements and developments inside ELSI, mainly covering (1) new solvers connected to the interface, (2) matrix layout and communication adapted for parallel calculations of periodic and/or spin-polarized systems, (3) routines for density matrix extrapolation in geometry optimization and molecular dynamics calculations, and (4) general utilities such as parallel matrix I/O and JSON output. The ELSI interface has been integrated into four electronic structure code projects (DFTB+, DGDFT, FHI-aims, SIESTA), allowing us to rigorously benchmark the performance of the solvers on an equal footing. Based on results of a systematic set of large-scale benchmarks performed with Kohn–Sham density-functional theory and density-functional tight-binding theory, we identify factors that strongly affect the efficiency of the solvers, and propose a decision layer that assists with the solver selection process. As a result, we describe a reverse communication interface encoding matrix-free iterative solver strategies that are amenable, e.g., for use with planewave basis sets.
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