196,331 research outputs found

    Update Available: Comprehensive Tools For Comparative Anatomy Ver. 2.0.

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    "UPDATE AVAILABLE: COMPREHENSIVE TOOLS FORCOMPARATIVE ANATOMY VER.2.0" F. Spani1, M. Carosi1, M. Scalici1, M.P. Morigi2,3,4, M. Bettuzzi2,3,4, M. Colasanti11 Department of Sciences, Roma Tre University, Rome;2Department of Physics and Astronomy, University of Bologna,Bologna; 3Museo Storico della Fisica e Centro Studi e Ricerche“Enrico Fermi”, Rome; 4Istituto Nazionale di Fisica NucleareRome, ItalyE-mail: [email protected] Treatises on comparative anatomy1,2are the evidence of howinvestigating anatomical structures have been crucial to betterknow living organisms and their interplay with the surroundingenvironment which could induce significant morphological varia-tion. Traditional anatomical dissections for exploring internalmorphology were not suitable to maintain integrity of samples.In the last few years, bio-imaging techniques paired with geomet-ric morphometrics (GM), and applied to comparative anatomystudies, overcame these limits becoming at the same time widelynon-invasive and highly descriptive. In fact, they preserved sam-ples in their whole integrity, unfolding new descriptors of formvariation previously unknown. The application field of these tech-niques ranged from 2- to 3-dimensional GM studies, coveringboth invertebrates and vertebrates. Radiological instrumentsbelonging to the family of Computed Tomography (CT) scannersdefinitively allowed to advance in the knowledge of either knownor neglected biological structures. Our implementations coveredseveral animal orders (e.g. Decapoda, Ephemeroptera Mytiloida,Macroscelidea, Primates). Here we focused on the feasibility ofthe cone-beam CT for 3D surface scanning of the mussel Mytilusgalloprovincialis(Lamarck, 1819) valves,3,4and the potential ofmicro-CT scanner in detecting and 3D characterizing virtual vol-umes of genital bones in primates (i.e., baculumin males andbaubellumin females).5These innovative practices help toengage and deepen the meaning of shape in animal biology, fromboth structural and evolutionary views. They allow to describethe relation between phylogeny and morphogenesis, identifyingall possible links between structure, function and fitness, andmechanical and ontogenetic modifications due to environmentalpressures, including anthropogenic alterations.1. Grandidier A. Histoire Physique, Naturelle et Politique de Madagascar1875, 6: 272-278.2. Hill PWC. Primates-Comparative Anatomy and Taxonomy 1953-1974,vols. 1-7.3. Scalici M et al. Ecotoxicology 2017, 26: 396-404.4. Scalici M et al. Aquat Living Resour 2016, 29: 207.5. Spani F et al. Folia Primatol 2017, 88: 200

    Himera. Osservazioni su un settore della città alta

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    L’insediamento di Himera fu pianificato due volte: l’ultimo fu costruito a partire dagli anni intorno al 570 a.C. Ebbe almeno due orientamenti, uno per la città sulla collina e uno per la città bassa, sul plateau vicino alla costa. Gli studiosi hanno spesso evidenziato la regolarità e l’ortogonalità delle sue strade che sembrano tracciare oikopeda, lotti di costruzioni private della stessa dimensione. Lo studio degli antichi resti in un’area di quattro oikopeda nel cosiddetto Quartiere Meridionale consente di riesaminare la questione della regolarità degli spazi di edifici privati, con la conclusione che ci furono oikopeda più grandi della misura standard già nel progetto di pianificazione urbana.The settlement of Himera was planned two times: the last was built from the years around 570 BC. It has at least two orientations, for the city side on the hill and for the lowertown, on the plateau close to the shore. The scholars have often remarked about regularity and orthogonality of its streets that seem to draw oikopeda, parcels of private building, of the same size. The study of the ancient remains in an area of four oikopeda in the so-called South Quarter allowed to re-examine the question of the regularity of private building spaces, concluding that t here were oikopeda larger than the standard already in the urban planning project

    Il costume funerario nell'entroterra non greco

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    Nel contributo si offre una sintesi del costume funerario italico dell'entroterra pestano

    Nascita delle aristocrazie e sistemi di parentela in area nord-lucana

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    The NW Lucanian territory plays a fundamental role in understanding the development and the construction of pre-roman societies in southern Italy. By the end of 7th century B.C. the population of this area seems to have had a deeper and stronger contact with different Greek groups of the coast. Many of these ancient Lucanian sites have been discovered and studied in the last few years, such as Torre di Satriano, where a very important social and political centre of 7th -6th cent. B.C. has been recently discovered thanks to the excavations. Recent analysis in the Ruvo del Monte necropolis showed as well, in the same period, the prominent role of ancestors’ memory in the construction process of local societies

    Performance Evaluation of a Novel Plasmonic Butterfly-type Nanoantenna: Optical and Far-field Properties

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    In this paper, the design of a novel butterfly-shape antenna (patent pending) over the 0.1-10 THz frequency range is proposed. The antenna consists of two simmetric gold arms with a lenght of 46.48 μm, a width of 22.40 μm, and a thickness of 200 nm gold separated by a gap of 20 nm. The two-layer substrate is composed of 3 μm of silicon and 50 nm of gold. Simulation results, carried out by CST Studio Suite 2023, show three different resonant frequencies at 2.1 THz, 3.6 THz, and 5.1 THz, respectively, with a -10 dB S 11 lower than -18 dB for each resonant frequency and a directivity up to 11.04 dBi. Starting from the design of a single butterfly-nanoantenna, a 2x2 array is simulated and fabricated
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