188 research outputs found

    RIDARE SENSO AL DIRITTO DEL LAVORO. LO STATUTO OGG

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    L'autore indaga l'attualità dello Statuto mettendone in luce le linee di continuità rispetto all'attuale legislazione del lavoro. L'autore si sofferma, in particolare, sulla duplice anima dello Statuto che guarda ad un tempo alla dimensione individuale e alla dimensione collettiva del lavoro

    LE POLITICHE DEL LAVORO DI FRONTE ALLA CRISI

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    Il saggio si confronta con la crisi in atto che costringe non solo gli attori politici e sociali, ma anche i giuslavoristi appassionati di politiche del diritto a un esercizio di realismo. E in questa prospettiva si interroga sugli indirizzi di politica del diritto del legislatore italiano mettendone in luce positività e criticità. In particolare l'autore si sofferma criticamente sulla proposta di contratto unico. Nell’attuale contesto appare anzitutto poco credibile in sé l’idea di mettere mano a una ennesima riforma della riforma, quando invece occorrerebbe concentrarsi sulle misure immediate più efficaci rispetto alla crisi, nonché sul rafforzamento degli strumenti amministrativi necessari a far si che i provvedimenti anticrisi non si risolvano in interventi meramente assistenzialistici

    Analytical drain‐current model of p‐ and n‐channel OTFTs for circuit simulation

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    Organic thin-film transistors (OTFTs) are an emerging technology for large scale circuit integration, owing the availability of both p- and n- channel devices. For the technology development and the design of circuits and digital systems, the accurate physical modeling is mandatory. In this work we propose an unified analytical model for both p- and n- type OTFTs. The model is physically based and accounts for a double exponential density of states (DOS). It is simple, symmetric and accurately describes the below-threshold, linear, and saturation regimes via a unique formulation. The model is eventually validated with the measurements of complementary OTFTs fabricated in a fullyprinted technolog

    Transcatheter closure of pfo and asd: Multimodality imaging for patient selection and perioperative guidance

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    Transcatheter closure of patent foramen ovale (PFO) and secundum type atrial septal defect (ASD) are common transcatheter procedures. Although they share many technical details, these procedures are targeting two different clinical indications. PFO closure is usually considered to prevent recurrent embolic stroke/systemic arterial embolization, ASD closure is indicated in patients with large left-to-right shunt, right ventricular volume overload, and normal pulmonary vascular resistance. Multimodality imaging plays a key role for patient selection, periprocedural monitoring, and follow-up surveillance. In addition to routine cardiovascular examinations, advanced neuroimag-ing studies, transcranial-Doppler, and interventional transesophageal echocardiography/intracardiac echocardiography are now increasingly used to deliver safely and effectively such procedures. Long-standing collaboration between interventional cardiologist, neuroradiologist, and cardiac imager is essential and it requires a standardized approach to image acquisition and interpretation. Peripro-cedural monitoring should be performed by experienced operators with deep understanding of technical details of transcatheter intervention. This review summarizes the specific role of different imaging modalities for PFO and ASD transcatheter closure, describing important pre-procedural and intra-procedural details and providing examples of procedural pitfall and complications

    Polyfluorinated Naphthalene-bis-hydrazimide for Solution-Grown n-Type Semiconducting Films

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    Naphthalene tetracarboxylic diimides (NDIs), possessing low-lying and tunable LUMO levels, are of wide interest for their aptitude to provide cost-effective, flexible, and environmentally stable n-type organic semiconductors through simple solution processing. NDI-based aromatic hydrazidimides are herein studied in relation to their chemical and environmental stability and as spin-coated stable thin films. In the case of the pentafluorinated residue, these were found to be crystalline, highly oriented, and molecularly flat (roughness = 0.3 nm), based on optical and atomic force microscopy, X-ray diffraction in specular and grazing incidence geometry, and X-ray reflectivity measurements. A new polymorph, previously undetected during the isolation of bulk powders or in their controlled thermal treatments, is found in the thin film and was metrically and structurally characterized from 2D GIWAXS patterns (monoclinic, P2/c, a = 17.50; b = 4.56; c = 14.24 & Aring;; beta = 84.8 degrees). This new thin-film phase, TF-F5, is formed no matter whether silicon, glass, or polymethylmethacrylate substrates are used, thus opening the way to the preparation of solution-grown flexible semiconducting films. The TF-F5 films exhibit a systematic and rigorous molecular alignment with both orientation and packing favorable to electron mobility (mu = 0.02 cm(2) V-1 s(-1)). Structural and morphological differences are deemed responsible for the absence of measurable conductivity in thin films of polyfluorinated analogues bearing -CF3 residues on the hydrazidimide aromatic rings
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