330 research outputs found

    First Maltese record of Stephanopachys quadricollis (Marseul, 1879) (Coleoptera, Bostrichidae)

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    Three specimens of Stephanopachys quadricollis (Marseul, 1878) were recently found in Malta in UV light traps and represent the first record of this species for this country. Although S. quadricollis is native to the Mediterranean basin, it is not yet clear if these Maltese records are due to a natural population or to an interception. Distributional, nomenclatural and biological data on this species are summarized, and a new synonymy is established: Stephanopachys quadricollis (Marseul, 1879) = Stephanopachys quadraticollis Kocher, 1956, syn. n.peer-reviewe

    Supplemental Material - Communicating radiation dose in medical imaging: How to best inform our patients?

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    Supplemental Material for Communicating radiation dose in medical imaging: How to best inform our patients? by Sergio Salerno, Cosimo Nardi, Mario Pace, Lidia Rabiolo, Federica Flammia, Francesco Loverre, Domenica Matranga, Claudio Granata, Paolo Tomà, and Stefano Colagrande in Acta Radiologica Open.</p

    Supplemental Material - Communicating radiation dose in medical imaging: How to best inform our patients?

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    Supplemental Material for Communicating radiation dose in medical imaging: How to best inform our patients? by Sergio Salerno, Cosimo Nardi, Mario Pace, Lidia Rabiolo, Federica Flammia, Francesco Loverre, Domenica Matranga, Claudio Granata, Paolo Tomà, and Stefano Colagrande in Acta Radiologica Open.</p

    Coordination of unmanned marine vehicles for asymmetric threats protection

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    A coordination protocol for systems of unmanned marine vehicles is proposed for protection against asymmetric threats. The problem is first mod- elled in a game theoretic framework, as a potential game. Then an extension of existing learning algo- rithms is proposed to address the problem of tracking the possibly moving threat. The approach is evaluated in scenarios of different geometric complexity such as open sea, bay, and harbours. Performance of the approach is evaluated in terms of a security index that will allow us to obtain a tool for team sizing. The tool provides the minimum number of marine vehicles to be used in the system, given a desired security level to be guaranteed and the maximum threat velocity

    Supplemental Material - Communicating radiation dose in medical imaging: How to best inform our patients?

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    Supplemental Material for Communicating radiation dose in medical imaging: How to best inform our patients? by Sergio Salerno, Cosimo Nardi, Mario Pace, Lidia Rabiolo, Federica Flammia, Francesco Loverre, Domenica Matranga, Claudio Granata, Paolo Tomà, and Stefano Colagrande in Acta Radiologica Open.</p

    Supplemental Material - Communicating radiation dose in medical imaging: How to best inform our patients?

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    Supplemental Material for Communicating radiation dose in medical imaging: How to best inform our patients? by Sergio Salerno, Cosimo Nardi, Mario Pace, Lidia Rabiolo, Federica Flammia, Francesco Loverre, Domenica Matranga, Claudio Granata, Paolo Tomà, and Stefano Colagrande in Acta Radiologica Open.</p

    209 - Kyle Matthew Nardi

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    Includes bibliographical references.Atmospheric rivers (ARs), narrow corridors of high atmospheric water vapor transport, influence large regions of the West Coast of North America, from southern California to British Columbia and Alaska. Regardless of location, areas influenced by landfalling ARs face various threats and disruptions from excessive rainfall and associated runoff. Therefore, improving forecasts of AR occurrence and characteristics is of great importance to those responsible for protecting life and property. When providing the public with outlooks and warnings related to ARs, forecasters must confront the challenge of assessing the output of different numerical weather prediction (NWP) models. Specifically, forecasters must understand how performance varies across different time scales, geographical regions, and individual models. Prior work, such as Wick et al. (2013), has examined the forecast skill of several NWP models at different lead times, yet as models are continuously updated, a fresh perspective on AR forecast performance is desired. This study aims to assess how different weather forecast models perform at varying lead times and for distinct regions of the West Coast of North America. Re-forecasts from several operational NWP models, obtained from the International S2S Project Database, are run out to approximately 60 days. An atmospheric river detection algorithm is applied to the model output in order to quantify how the models handle such features. The study examines atmospheric river re-forecasts for the West Coast of North America as well as three non-overlapping sub-regions along the coast. The first sub-region extends from southern California to the Oregon border. The second sub-region covers the Pacific Northwest from southern Oregon to the northern extent of Vancouver Island. The third and final sub-region consists of the coasts of British Columbia and southeastern Alaska. Together, these regions represent a large fraction of the AR landfall locations for western North America. Model performance is studied through the lens of AR occurrence, intensity, and location. Results indicate variations in re-forecast skill as a function of lead time, geographic region, and model used. A desired near-term outcome of this work is an increased awareness of both the utility and limitations of NWP models in the prediction of atmospheric river events at short, medium, and long-range leads. A desired long-term outcome is the use of these results as a bridge to understanding what gives rise to the differing characters of atmospheric rivers over the northeast Pacific and how models can improve their depictions of such features

    sj-doc-1-acr-10.1177_02841851211055163 - Supplemental material for Chest radiography findings of COVID-19 pneumonia: a specific pattern for a confident differential diagnosis

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    Supplemental material, sj-doc-1-acr-10.1177_02841851211055163 for Chest radiography findings of COVID-19 pneumonia: a specific pattern for a confident differential diagnosis by Nicholas Landini, Giulia Colzani, Pierluigi Ciet, Giovanni Tessarin, Alberto Dorigo, Luca Bertana, Carla Felice, Luca Scaldaferri, Martina Orlandi, Cosimo Nardi, Micaela Romagnoli, Luca Saba, Roberto Rigoli and Giovanni Morana in Acta Radiologica</p

    Indeterminate thyroid nodules (TIR3A/TIR3B) according to the new Italian reporting system for thyroid cytology: a cytomorphological study

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    OBJECTIVE: The Italian reporting system for thyroid cytology classifies indeterminate lesions as TIR3A (low-risk) or TIR3B (high-risk) and is meant to provide practical guidance rather than a detailed consideration of morphological features. We aimed to assess which cytological features have the most diagnostic value and whether they are effective in classifying nodules as either TIR3A or TIR3B and in predicting histological outcomes. METHODS: Thyroid fine-needle aspirates from 111 indeterminate nodules were reviewed blinded to clinical information, TIR3A/TIR3B classification, and histology in order to assess which cytological features (pooled into artifacts, smear background, architectural and nuclear atypia, and oncocytes) differentiate TIR3A from TIR3B, and benign from malignant histological outcomes. RESULTS: Of the cytological features examined, those specific for TIR3B included high cellularity, nuclear atypia, oncocyte predominance, and transgressing vessels. Features specific for TIR3A included artifacts, low cellularity, and oncocyte sparseness. Other features, such as microfollicules/trabeculae, were non-specific. Due to the different distributions of these features, three TIR3B subgroups were identifiable: follicular lesions with oncocytic changes, pure follicular lesions, and follicular lesions with nuclear atypia, whereas no subgroups were identifiable in TIR3A. Nuclear atypia was a significant indicator of malignancy, whereas oncocyte predominance was not a reliable predictor of malignancy. High cellularity and microfollicules/trabeculae were not indicative of any histological outcome. CONCLUSIONS: The majority of the assessed features were good predictors of histological outcomes. The TIR3A category included undefined nodules due to the absence of characterizing features, whereas the TIR3B category included nodules with a greater number of distinguishing features. This article is protected by copyright. All rights reserved

    The English National curriculum assessment system: a commentary from Italy

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    In Italian secondary schools, it is not literature that is studied but the history of literature; it is not philosophy that is studied but the history of philosophy. Similarly, in higher education, history students even have to take an exam in the history of historiography. This is to say that in Italy, history plays a key cultural role. That is why the author read with particular interest the contribution by Chris Whetton, entitled "A brief history of a testing time: national curriculum assessment in England 1989-2008" (2009, in this issue), which stimulates different comparative considerations between Italy and Great Britain. In this article, the author compares the following: (1) the Italian school system and teachers' education; (2) assessment priorities; and (3) national assessment policies and international surveys
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