Empirical Evaluation of Deep Learning Approaches for Landmark Detection in Fish Bioimages

In this paper we perform an empirical evaluation of variants of deep learning methods to automatically localize anatomical landmarks in bioimages of fishes acquired using different imaging modalities (microscopy and radiography). We compare two methodologies namely heatmap based regression and multivariate direct regression, and evaluate them in combination with several Convolutional Neural Network (CNN) architectures. Heatmap based regression approaches employ Gaussian or Exponential heatmap generation functions combined with CNNs to output the heatmaps corresponding to landmark locations whereas direct regression approaches output directly the (x, y) coordinates corresponding to landmark locations. In our experiments, we use two microscopy datasets of Zebrafish and Medaka fish and one radiography dataset of gilthead Seabream. On our three datasets, the heatmap approach with Exponential function and U-Net architecture performs better. Datasets and open-source code for training and prediction are made available to ease future landmark detection research and bioimaging applications

Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton–proton collisions at √s=13 TeV with the ATLAS detector

This Letter presents a search for new light resonances decaying to pairs of quarks and produced in association with a high-pT photon or jet. The dataset consists of proton–proton collisions with an integrated luminosity of 36.1 fb−1at a centre-of-mass energy of √s=13TeV recorded by the ATLAS detector at the Large Hadron Collider. Resonance candidates are identified as massive large-radius jets with substructure consistent with a particle decaying into a quark pair. The mass spectrum of the candidates is examined for local excesses above background. No evidence of a new resonance is observed in the data, which are used to exclude the production of a lepto-phobic axial-vector Z boson

CYANIDE IN BIOLOGICAL SAMPLES BY HRGC/HS WITH NP DETECTOR.

4nonenoneE. SALIGARI; V. GAMBARO; S. ARNOLDI; DELLACQUA; R. FROLDI.Saligari, Elisa Agnese; V., Gambaro; S., Arnoldi; Dellacqua, R. FROLD

Problematiche sulla sicurezza connesse ad interventi di risanamento di siti contaminati

Il presente lavoro illustra, oltre ad indicazioni di natura strettamente tecnica connesse all’intervento ambientale, anche l’inquadramento generale delle problematiche di sicurezza e salute dei lavoratori ai sensi dell’attuale Testo Unico in materia di sicurezza (D.Lgs.81/2008) connesse alla medesima attività di intervento, suggerendo inoltre le principali misure di prevenzione e protezione da adottare sia in fase di cantiere che di gestione del materiale contaminato rimoss

Electrophysiological evidence of visual encoding deficits in a cross-modal attentional blink paradigm

Two experiments are reported in which two target stimuli, T1 and T2, were presented at variable stimulus onset asynchronies (SOAs). In Experiment 1, T1 and T2 were visual stimuli embedded in a rapid serial visual presentation (RSVP) stream of distractors. Participants were asked to report T1 and T2 at the end of the stream. In Experiment 2, T1 was an auditory stimulus, and T2 a visual stimulus embedded in an RSVP stream. Participants made a speeded discriminative response to T1, and reported T2 at the end of the stream. An attentional blink (AB) effect was observed in both experiments: T2 report suffered at short SOA compared to long SOA. During the AB, the amplitude of the P300 component of the event-related potential (ERP) locked to T2 onset was sensibly reduced in both experiments. Behavioral and ERP results were very similar across the two experiments. Implications for models of the AB effect are discussed

L’impresa veneta: finanza,internazionalizzazione e crescita,

La ricerca esamina e approfondisce i conti economici e le situazioni patrimoniali riferiti al 2004 di circa 10.000 piccole e medie aziende, quindi inserite nelle fasce tra 2 e 10 milioni di euro di giro d’affari e tra 10 e 50 milioni. A questa analisi è stata affiancata nello stesso tempo un’indagine empirica, svolta attraverso interviste a un centinaio di giovani imprenditori attivi nel Veneto. L’obiettivo di fondo è interrogarci sulla consistenza del tessuto imprenditoriale e sul suo possibile sviluppo futuro, con particolare attenzione alle dimensioni delle aziende e alla capacità del sistema di integrarsi e di affrontare la competizione internazionale sia valorizzando gli asset storici che proponendo nuovi modelli in grado di far crescere le nostre imprese

Bidirectional semantic priming in the attentional blink.

The time course of semantic priming between two associated words was tracked using rapid serial visual presentation of two synchronized streams of stimuli appearing at about 20 items/sec, each stream including a target word. The two words were semantically related or unrelated and were sepa- rated by stimulus onset asynchronies (SOAs) of 0–213msec. Accuracy in reporting the first target (T1) versus the second target (T2) has been shown to interact dramatically with SOA over this range. The materials were in English in Experiment1 and Italian in Experiment2. T1 was semantically primed only at short SOAs, whereas T2 was primed at all SOAs (Experiment1) or at all SOAs except the shortest one (Experiment2). The results indicate a strong competition between target words early in process- ing, with T2 often becoming the first word identified at short SOAs, thus priming T1