87,790 research outputs found
Stereophilus filicornis Biscaccianti & Esser & Cuoco & Grimaldi & Audisio 2022, gen. et comb. nov.
No full textStereophilus filicornis (Reitter, 1887) gen. et comb. nov. Fig. 1 Atritomus filicornis Reitter, 1887b: 288. Atritomus boissyi Caillol, 1925: 101. Parabaptistes filicornis – auctorum. Eulagius filicornis – auctorum. New records FRANCE • 1 ♂, 2 ♀♀; Haute-Garonne, Forêt de Rieumes; 3 Sep. 1993; J. Rogé leg.; MZUF • 6 ♂♂, 5 ♀♀; Pyrénées-Orientales, Forêt de Sorède; 13 Jun 2004; F. Wachtel leg.; CES. ITALY • 1 ♂; Tuscany, Collesalvetti (LI), Nugola, Bosco Malenchini; 43°34′54″ N, 10°27′30″ E; alt. 45 m; 14 Jul. 2012; S. Cuoco leg.; on dry branches of Quercus cerris L.; ABB • 1 ♂; same collection data as for preceding; 13 Aug. 2012; S. Cuoco leg.; sifting litter in a Turkey oak wood; ABB • 2 ♂♂, 1 ♀; Tuscany, Collesalvetti (LI), Nugola, Bosco Macchia Grossa; 43°35′27″ N, 10°26′54″ E; alt. 40 m; 8 May 2016; S. Cuoco leg.; sifting litter in a Turkey oak wood; CSC • 1 ♀; same collection data as preceding; ABB • 1 ♀; same collection data as for preceding; 18 Jun. 2016; S. Cuoco leg.; on Fraxinus ornus L.; CSC • 2 ♀♀; same collection data as for preceding; 1 Jul. 2016; S. Cuoco leg.; on Fraxinus ornus L.; CSC • 1 ♀; Tuscany, Livorno, Antignano, Mt Burrone; 43°29′16″ N, 10°20′10″ E; alt. 95 m; 12 May 2013; S. Cuoco leg.; on Erica arborea L.; ABB • 3 ♀♀; same collection data as for preceding; CSC • 1 ♀; Tuscany, Livorno, Bellosguardo, Via di Popogna (SP8) km 6.7; 43°30′41″ N, 10°23′18″ E; alt. 130 m; 21 May 2013; S. Cuoco leg.; on branches of Quercus ilex L.; CSC • 1 ♂; Calabria, Aspromonte, San Giorgio Morgeto (RC), Mt Campanaro; 38°21′58.1″ N, 16°06′36.5″ E; alt. 693 m; 28 May 2018; A.B. Biscaccianti, F. Manti and E. Castiglione leg.; inside a hollow on Quercus suber L.; ABB. Remarks Stereophilus filicornis gen. et comb. nov. occurs in western and southern Europe and western North Africa. The species was described from specimens collected in Algeria, and was later also reported from Belgium, France, Germany, The Netherlands, Spain, and Tunisia (Recalde Irurzun & Pérez-Moreno 2007; Bonamie et al. 2010; Bouyon 2014; Gielen & Smets 2020; Nikitsky 2020; Bleich & Gürlich 2021; Háva 2021; Eisinger in press, all sub Eulagius). It has been imported to Great Britain, where it seems to be established (Harrison 1996; Foster 2001, 2013; Booth 2012; Denton & Dodd 2013; Nikitsky 2020, all sub Eulagius). The biology and ecology of Stereophilus filicornis gen. et comb. nov. are poorly known: some authors report catches from under bark on dead trunks, on woody debris of old trees, and by beating dead branches of broadleaf trees such as Castanea sativa Mill., Quercus canariensis Willd. (= mirbeckii Durieu), Q. robur L., Q. suber L. (Caillol 1925, sub Atritomus; Peyerimhoff 1926, sub Parabaptistes; Labatut et al. 2014, sub Eulagius); only Freeman (2003, sub Parabaptistes) reported a series of specimens reared from carpophores of Stereum hirsutum (Willd.) Pers. (Russulales, Stereaceae), sampled from Fagus sylvatica L. The single specimen here reported from southern Italy, Calabria (Aspromonte) was found by sifting wood mould, woody debris, and Daedaleopsis nitida (Durieu & Mont.) Zmitr. & Malysheva (Polyporales, Polyporaceae) carpophores, likely its local host fungus, collected from inside a large hollow on a Quercus suber trunk. The site is a mesophile cork oak mixed forest, referred to the Helleboro-Quercetum suberis association (Signorello 1984; Mercurio & Spampinato 2001). The habitat of Stereophilus filicornis gen. et comb. nov. in Tuscan sites is represented by fragments of hilly submesophile woodland dominated by Castanea sativa and Quercus cerris L. (Nugola municipality: Bosco Malenchini and Bosco Macchia Grossa) and mosaics of Mediterranean maquis, holm oak and Aleppo pine woods (Antignano and Bellosguardo municipalities) (V. Lazzeri, pers. comm.). Our records are the first of this species for Italy. According to Tempère (1974, sub Parabaptistes), the species could also be present in Sicily. However, no source was provided and the occurrence of Stereophilus filicornis gen. et comb. nov. in Sicily remains unconfirmed.Published as part of Biscaccianti, Alessandro B., Esser, Jens, Cuoco, Silvio, Grimaldi, Enrica Giuliano & Audisio, Paolo A., 2022, West Palaearctic taxa formerly connected to the ' old' genus Atritomus Reitter, 1877 (Coleoptera, Mycetophagidae): taxonomy, distribution, and description of a new genus, pp. 61-74 in European Journal of Taxonomy 828 on pages 65-66, DOI: 10.5852/ejt.2022.828.1853, http://zenodo.org/record/681152
Beating fabry-perot cavity resonant eigen-frequencies to detect gravitational waves
No full textThe Virgo interferometer, located near Pisa, Italy, is taking data to look for gravitational waves. The Virgo interferometer is able to "hear" the final spirals before coalescence of a neutron-star binary at ∼9.5 Mpc. A gravitational wave, a space-time distortion, of amplitude h(t) induces a relative variation h(t)/2 of the frequency of an optical resonant cavity with suspended mirrors. For an optimal polarization of the gravitational wave, the variations of the frequencies of two orthogonal Fabry-Perot cavities have opposite signs. A laser compares the resonant frequencies of the cavities disposed in a Michelson interferometer with a resolution ∼10-21. The laser frequency is stabilized to make this eigenfrequency comparison, with an in-loop phase noise of -155 dBc/sqrt(Hz) between 10 Hz and 10 kHz. I explain the oise budget of our interferometer, and discuss upgrades to improve the resolution. © 2010 American institute of Physics
Handling the uncertainties in the Galactic Dark Matter distribution for particle Dark Matter searches
No full textIn this work we characterize the distribution of Dark Matter (DM) in the Milky Way (MW), and its uncertainties, adopting the well known "Rotation Curve" method. We perform a full marginalization over the uncertainties of the Galactic Parameters and over the lack of knowledge on the morphology of the baryonic components of the Galaxy. The local DM density ρ 0 is constrained to the range 0.3- 0.8 GeV/cm 3 at the 2 σ level, and has a strong positive correlation to R 0 , the local distance from the Galactic Center. The not well-known value of R 0 is thus, at the moment, a major limitation in determining ρ 0 . Similarly, we find that the inner slope of the DM profile, γ, is very weakly constrained, showing no preference for a cored profile (γ0) or a cuspy one (γ[1.0,1.4]). Some combination of parameters can be, however, strongly constrained. For example the often used standard ρ 0 =0.3 GeV/cm 3 , R 0 =8.5 kpc is excluded at more than 4 σ. We release the full likelihood of our analysis in a tabular form over a multidimensional grid in the parameters characterizing the DM distribution, namely the scale radius R s , the scale density ρ s , the inner slope of the profile γ, and R 0 . The likelihood can be used to include the effect of the DM distribution uncertainty on the results of searches for an indirect DM signal in gamma-rays or neutrinos, from the Galactic Center (GC), or the Halo region surrounding it. As one example, we study the case of the GC excess in gamma rays. Further applications of our tabulated uncertainties in the DM distribution involve local DM searches, like direct detection and anti-matter observations, or global fits combining local and GC searches
Delusion, possession and religion †
No full textBackground: Religion and psychiatry may be both considered to be two different ways of explaining the unknown, of responding to questions about the meaning of life, and of bringing healing. Aims: To discuss the border between religion and psychiatry. Method: This lecture explores the interface between religion and psychiatry and discusses the border between soul and mind. Results: Religious beliefs may affect behaviours and may been seen on a psychopathological continuum with overvalued ideas and delusions. There is an overlap between psychiatric and religious categories, in possession states described in research literature and by many cultural groups. Several studies suggest possible factors for differentiating schizophrenia from demonic influence and report on the efficacy of exorcism among possessed/psychotic subjects. Diagnostic criteria have been proposed for dissociative trance disorder or possession disorder. Conclusions: Both mental health professionals and religious believers may require criteria to distinguish adaptive and maladaptive expressions of religious experience
Computational challenges for multimodal astrophysics
No full textIn the coming decades, we will face major computational challenges, when the improved sensitivity of third-generation gravitational wave detectors will be such that they will be able to detect a high number (of the order of 7 × 104 per year) of multi-messenger events from binary neutron star mergers, similar to GW 170817. In this Perspective, we discuss the application of multimodal artificial intelligence techniques for multi-messenger astrophysics, fusing the information from different signal emissions
Searches for Gravitational Waves from Compact Binary Coalescences with the LIGO and Virgo Detectors
No full textAmong the most promising sources of gravitational waves for ground-based detectors are the signals emitted during the coalescence of compact binary systems containing neutron stars or black holes. In recent years, the first generation LIGO and Virgo detectors have recorded science data over long observation periods. These data have been analyzed in search of signals from compact binary coalescences - both all-sky searches and searches associated with short gamma-ray bursts have been performed. We review recent results and outline the prospects for future observations
Electrically tunable superconductivity through surface orbital polarization
No full textWe investigate the physical mechanisms for achieving an electrical control of conventional spin-singlet superconductivity in thin films by focusing on the role of surface orbital polarization. Assuming a multiorbital description of the metallic state, due to screening effects the electric field acts by modifying the strength of the surface potential and, in turn, yields nontrivial orbital Rashba couplings. The resulting orbital polarization at the surface and in its close proximity is shown to have a dramatic impact on superconductivity. We demonstrate that, by varying the strength of the electric field, the superconducting phase can be either suppressed, i.e., turned into normal metal, or undergo a 0-π transition with the π phase being marked by nontrivial sign change of the superconducting order parameter between different bands. These findings unveil a rich scenario to design heterostructures with superconducting orbitronics effects
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