cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Phenomenology of unpolarized TMDs from Semi-Inclusive DIS data
Creators: name: Signori, Andrea
name: Bacchetta, Alessandro
name: Radici, Marco
Publisher: name: INFN Open Access Repository
Year: 2014

description: We discuss the dependence on the flavor of the intrinsic transverse momentum
in unpolarized transverse-momentum-dependent distribution functions (TMD PDFs)
and fragmentation functions (TMD FFs) analyzing data of semi-inclusive
deep-inelastic scattering (SIDIS) released by the HERMES collaboration.
Adopting a flavor-dependent Gaussian model in the transverse momentum and
neglecting QCD evolution, we find interesting evidences concerning the flavor
dependence in TMD FFs, whereas the indications are weaker in TMD PDFs and
deserve further investigations. Inclusions of new data sets of SIDIS,
electron-positron annihilations and and Drell-Yan (DY) events require a proper
treatment of QCD evolution. We try to get constraints on the non-perturbative
Sudakov factor from electron-positron annihilations into hadrons.
title: ÐÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ðµ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾Ðµ Ð±Ð»Ð°Ð³Ð¾ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ½ÐºÑÐ° Ð² ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ½Ð¸ÑÐ¸Ð¼Ð¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð´Ð¾Ð¶Ð´ÐµÐ²Ð°Ñ ÐºÐ°Ð½Ð°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ
Ð´ÑÐµÐ½Ð°Ð¶
Ð²Ð¾Ð´Ð¾Ð¾ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ðµ
Ð²Ð¾Ð´Ð¾Ð¿Ð¾Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ

description: ÐÐ°Ð½Ð½Ð°Ñ Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ¾Ð±Ð¾Ð¹ Ð¿ÑÐ¾ÐµÐºÑ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð¹ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸, Ð²Ð¾Ð´Ð¾Ð¿Ð¾Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð¸ Ð²Ð¾Ð´Ð¾Ð¾ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ðµ Ð½Ð° ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸ Ð¼Ð°Ð»Ð¾ÑÑÐ°Ð¶Ð½Ð¾Ð³Ð¾ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ½ÐºÑÐ°, ÑÐ°ÑÐ¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð² Ð¿Ð¾ÑÐµÐ»ÐºÐµ ÐÐ¾ÑÐ¾Ð±Ð¸ÑÑÐ½Ð¾ ÐÑÐ±Ð¾ÑÐ³ÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð° ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸. ÐÑÐ»Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ: Ð³ÐµÐ½ÐµÑÐ°Ð»ÑÐ½ÑÐ¹ Ð¿Ð»Ð°Ð½ Ð¿Ð¾ÑÐµÐ»ÐºÐ°, ÑÑÐµÐ¼Ð° ÑÐ»Ð¸ÑÐ½Ð¾-Ð´Ð¾ÑÐ¾Ð¶Ð½Ð¾Ð¹ ÑÐµÑÐ¸, Ð°Ð´Ð¼Ð¸Ð½Ð¸ÑÑÑÐ°ÑÐ¸Ð²Ð½Ð¾-Ð±ÑÑÐ¾Ð²Ð¾Ð¹ ÑÐµÐ½ÑÑ, ÑÑÐ°ÑÑÐ¾Ðº Ð¿Ð¾Ð´ Ð·Ð°ÑÑÑÐ¾Ð¹ÐºÑ ÑÐ°ÑÐ½ÑÐ°ÑÑÐ°Ð¼Ð¸, ÑÐ¸Ð¿Ð¾Ð²Ð¾Ð¹ ÑÑÐ°ÑÑÐ¾Ðº Ð¸Ð½Ð´Ð¸Ð²Ð¸Ð´ÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÑÑÐ¾Ð¹ÐºÐ¸ Ñ Ð·Ð´Ð°Ð½Ð¸ÐµÐ¼. Ð¡Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ñ: ÑÐ°Ð¼Ð¾ÑÐµÑÐ½Ð°Ñ Ð´Ð¾Ð¶Ð´ÐµÐ²Ð°Ñ ÐºÐ°Ð½Ð°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ, Ð´ÑÐµÐ½Ð°Ð¶Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° Ð¸ Ð³Ð¾ÑÐ¸Ð·Ð¾Ð½ÑÐ°Ð»ÑÐ½Ð°Ñ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²ÐºÐ° Ð¾ÑÐºÑÑÑÐ¾Ð³Ð¾ Ð¿Ð»Ð¾ÑÐºÐ¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐ¾Ð¾ÑÑÐ¶ÐµÐ½Ð¸Ñ.
Structural modifications induced in hydrogenated amorphous Si/Ge multilayers by heat treatments
Creators: name: Frigeri, C.
name: Serenyi, M.
name: Csik, A.
name: Erdelyi, Z.
name: Beke, D. L.
name: Nasi, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A study is presented of the structural changes occurring as a function of the annealing conditions in hydrogenated amorphous Si/Ge multilayers prepared by sputtering. Annealing changes the structure of the as-deposited multilayer except for the less severe conditions here applied (150 oC, time<22 h). For higher temperatures and/or times, the modifications consist of layer intermixing and surface degradation in the shape of bumps and craters. They are argued to be due to the formation of H bubbles upon heating. Hydrogen should be mostly released from the amorphous Ge layers.
The optical counterparts of Accreting Millisecond X-Ray Pulsars during quiescence
Creators: name: D'Avanzo, P.
name: Campana, S.
name: Casares, J.
name: Covino, S.
name: Israel, G. L.
name: Stella, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Eight Accreting Millisecond X-ray Pulsars (AMXPs) are known to date. Optical and NIR observations carried out during quiescence give a unique opportunity to constrain the nature of the donor star and to investigate the origin of the observed quiescent luminosity at long wavelengths. Using data obtained with the ESO-Very Large Telescope, we performed a deep optical and NIR photometric study of the fields of XTE J1814-338 and of the ultracompact systems XTE J0929-314 and XTE J1807-294 during quiescence in order to look for the presence of a variable counterpart. If suitable candidates were found, we also carried out optical spectroscopy. We present here the first multi-band (VR) detection of the optical counterpart of XTE J1814-338 in quiescence together with its optical spectrum. The optical light curve shows variability in both bands consistent with a sinusoidal modulation at the known 4.3 hr orbital period and presents a puzzling decrease of the V-band flux around superior conjunction that may be interpreted as a partial eclipse. The marginal detection of the very faint counterpart of XTE J0929-314 and deep upper limits for the optical/NIR counterpart of XTE J1807-294 are also reported. We also briefly discuss the results reported in the literature for the optical/NIR counterpart of XTE J1751-305. Our findings are consistent with AMXPs being systems containing an old, weakly magnetized neutron star, reactivated as a millisecond radio pulsar during quiescence which irradiates the low-mass companion star. The absence of type I X-ray bursts and of hydrogen and helium lines in outburst spectra of ultracompact (P_orb < 1 hr) AMXPs suggests that the companion stars are likely evolved dwarf stars.
description: Accepted for publication by A&A; 12 pages, 12 figures
title: ÐÐ½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¸ Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¢Ð°ÑÐ°ÑÐµÐ½ÐºÐ¾, ÐÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ²Ð¾ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼
Ð¼ÐµÐ½ÐµÐ´Ð¶Ð¼ÐµÐ½Ñ

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The Westerbork SINGS survey III. Global magnetic field topology
Creators: name: Braun, Robert
name: Heald, George
name: Beck, Rainer
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A sample of large northern Spitzer Infrared Nearby Galaxies Survey (SINGS) galaxies was recently observed with the Westerbork Synthesis Radio Telescope (WSRT) at 1300-1760 MHz. In Paper II of this series, we described sensitive observations of the linearly polarized radio continuum emission in this WSRT-SINGS galaxy sample. Here we explore the systematic patterns of azimuthal modulation of both the Faraday depth and the polarized intensity and their variation with galaxy inclination. A self-consistent and fully general model for both the locations of net polarized emissivity at 1-2 GHz frequencies and the global magnetic field topology of nearby galaxies emerges. Net polarized emissivity is concentrated into two zones located above and below the galaxy mid-plane, with the back-side zone suffering substantial depolarization (by a factor of 4-5) relative to the front-side zone in its propagation through the turbulent mid-plane. The field topology, which characterizes the thick-disk emission zone is in all cases an axisymmetric spiral with a quadrupole dependence on height above the mid-plane. The front-side emission is affected by only mild dispersion (10's of rad/m2) from the thermal plasma in the galaxy halo, while the back-side emission is affected by additional strong dispersion (100's of rad/m2) from an axisymmetric spiral field in the galaxy mid-plane. The field topology in the upper halo of galaxies is a mix of two distinct types: a simple extension of the axisymmetric spiral quadrupole field of the thick disk and a radially directed dipole field. The dipole component might be a manifestation of (1) a circumnuclear, bipolar outflow, (2) an in situ generated dipole field, or (3) evidence of a non-stationary global halo.
description: 22 pages, 12 figures, accepted for publication in Astronomy and Astrophysics, final copy-edited version
title: ÐÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¼Ð°ÑÑÐ¾Ð²Ð¾Ð¹ Ð´Ð¾Ð»Ð¸ Ð³Ð»Ð¸ÑÐµÑÐ¸Ð½Ð°-ÑÑÐ¸Ð³ÐµÐ¿ÑÐ°Ð½Ð¾Ð°ÑÐ° Ð² ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ñ Ð¶Ð¸ÑÐ°Ñ ÐÐ 03-2022
Creators: name: Ð¡ÑÐ°Ð²ÑÐµÐ²Ð°, Ð.
Publisher: name: Ð¤ÐÐÐ£ Ð¦ÐÐÐÐ
Year: 2022
Subjects: Ð¥ÑÐ¾Ð¼Ð°ÑÐ¾Ð³ÑÐ°ÑÐ¸Ñ Ð³Ð°Ð·Ð¾Ð²Ð°Ñ
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description: ÐÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ñ ÐÐ 03-2022 Â«ÐÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¼Ð°ÑÑÐ¾Ð²Ð¾Ð¹ Ð´Ð¾Ð»Ð¸ Ð³Ð»Ð¸ÑÐµÑÐ¸Ð½Ð°-ÑÑÐ¸Ð³ÐµÐ¿ÑÐ°Ð½Ð¾Ð°ÑÐ° Ð² ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ Ð¶Ð¸ÑÐ°ÑÂ» Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð° Ð´Ð»Ñ Ð»Ð°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ¸Ð¹ (Ð¸ÑÐ¿ÑÑÐ°ÑÐµÐ»ÑÐ½ÑÑ ÑÐµÐ½ÑÑÐ¾Ð²) Ð¾ÑÑÑÐµÑÑÐ²Ð»ÑÑÑÐ¸Ñ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ Ð¶Ð¸ÑÐ¾Ð² Ð² ÑÐµÐ»ÑÑ Ð¸ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð ÐµÐ³Ð»Ð°Ð¼ÐµÐ½ÑÐ° ÐÐ¡ 1069/2009, ÑÑÑÐ°Ð½Ð°Ð²Ð»Ð¸Ð²Ð°ÑÑÐµÐ³Ð¾ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº Ð¿ÑÐ°Ð²Ð¸Ð»Ð°Ð¼ Ð¾Ð±Ð¾ÑÐ¾ÑÐ° Ð¿ÐµÑÐµÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÑ Ð¿ÑÐ¾Ð´ÑÐºÑÐ¾Ð² ÑÐ±Ð¾Ñ, Ð½Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð½ÑÑ Ð² Ð¿Ð¸ÑÑ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð ÐµÐ³Ð»Ð°Ð¼ÐµÐ½ÑÐ° ÐÐ¾Ð¼Ð¸ÑÑÐ¸Ð¸ (ÐÐ¡) â 142/2011, ÑÑÑÐ°Ð½Ð°Ð²Ð»Ð¸Ð²Ð°ÑÑÐµÐ³Ð¾ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ¿ÐµÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼Ð°ÑÐºÐµÑÐ°.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° CRM-ÑÐ¸ÑÑÐµÐ¼Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¼Ð¸ÑÑÐ¸ÐµÐ², ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: CRM-ÑÐ¸ÑÑÐµÐ¼Ñ
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description: ÐÐ°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ° ÑÐ¾Ð´ÐµÑÐ¶Ð¸Ñ 3 ÑÐ°Ð·Ð´ÐµÐ»Ð°, Ð² ÐºÐ¾ÑÐ¾ÑÑÑ
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Il cielo di ROSAT è più limpido che mai
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2016

2RXS, appena rilasciato dagli scienziati dell’Istituto Max Planck per la Fisica Extraterrestre (MPE), è la più profonda e dettagliata visione del cielo X nella sua interezza oggi disponibile, e contiene osservazioni di potenti buchi neri in fase di accrescimento, ammassi giganti di galassie, stelle attive e resti di supernova. Il commento di Patrizia Caraveo (INAF)
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð»Ð¸Ð½ÐµÐ¹ÐºÐ¸ ÑÐ¸ÑÐ¾ÐºÐ¾Ð¿Ð¾Ð»Ð¾ÑÐ½ÑÑ ÑÐµÑÑÐ¸ÑÐ¾Ð²ÑÑ ÑÐ¸ÑÐºÑÐ»ÑÑÐ¾ÑÐ¾Ð² Ð½Ð¸Ð·ÐºÐ¾Ð³Ð¾ ÑÑÐ¾Ð²Ð½Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ Ð´ÐµÑÐ¸Ð¼ÐµÑÑÐ¾Ð²ÑÑ Ð¸ ÑÐ°Ð½ÑÐ¸Ð¼ÐµÑÑÐ¾Ð²ÑÑ Ð´Ð»Ð¸Ð½ Ð²Ð¾Ð»Ð½
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: ÐÐµÐ´Ð²ÐµÐ´ÐµÐ², Ð®ÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¦Ð¸ÑÐºÑÐ»ÑÑÐ¾ÑÑ
ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
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title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°Ð³Ð°Ð·Ð¸Ð½Ð° Ð±ÑÐµÐ½Ð´Ð° ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ "Guess"
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÐºÐ¾Ð², ÐÐµÐ¾Ð½Ð¸Ð´
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð±ÑÐµÐ½Ð´ Â«guessÂ»
Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°Ð³Ð°Ð·Ð¸Ð½
Ð²ÐµÐ±-ÑÐ°Ð¹Ñ ÑÐ¾Ð²Ð°ÑÑ
Ð¿ÑÐ¾Ð´Ð°Ð¶Ð¸
ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð²ÐµÐ±-Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¹

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ - Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°Ð³Ð°Ð·Ð¸Ð½ Ð±ÑÐµÐ½Ð´Ð° Â«GuessÂ», ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð·Ð°Ð½Ð¸Ð¼Ð°ÐµÑÑÑ Ð¿ÑÐ¾Ð´Ð°Ð¶ÐµÐ¹ Ð¼Ð¾Ð´Ð½Ð¾Ð¹ Ð¾Ð´ÐµÐ¶Ð´Ñ ÑÐµÑÐµÐ· Ð¸Ð½ÑÐµÑÐ½ÐµÑ.
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ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¸ ÑÐ´ÐµÐ»Ð°Ð½ Ð²ÑÐ²Ð¾Ð´ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ Ð·Ð°ÑÑÐ°ÑÑ Ð½Ð° Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°Ð³Ð°Ð·Ð¸Ð½ ÑÐ²Ð»ÑÑÑÑÑ Ð½ÐµÐ·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½ÑÐ¼Ð¸ Ð´Ð»Ñ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸, Ð½Ð¾ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑ Ð¿Ð¾Ð»ÑÑÐ¸ÑÑ Ð²ÑÐ³Ð¾Ð´Ñ Ð¿ÑÐ¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¾ÑÐ³Ð¾Ð²Ð»Ð¸ Ð² ÑÐµÑÐ¸ Ð¸Ð½ÑÐµÑÐ½ÐµÑ Ð¸ Ð¿Ð¾Ð²ÑÑÐ¸ÑÑ ÑÐ·Ð½Ð°Ð²Ð°ÐµÐ¼Ð¾ÑÑÑ Ð±ÑÐµÐ½Ð´Ð°.
Radioastronomia protagonista su RAI Scuola
Creators: Francesca Aloisio
Publisher: name: Media Inaf
Year: 2016

Il programma “Memex– La scienza raccontata dai protagonisti”, trasmesso da Rai Scuola, dedica un focus alla radioastronomia e spiega i traguardi raggiunti da questa branca della ricerca astrofisica. Le quattro puntate vedranno come conduttore in studio Nicolò D’Amico, presidente dell'INAF
Lune di Saturno: più giovani dei dinosauri?
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2016

Alcuni dei satelliti principali potrebbero essersi formati circa 100 milioni di anni fa. Dunque successivamente al regno dei dinosauri, che risale al Triassico superiore, quindi circa 230 milioni di anni fa. Lo studio su The Astrophysical Journal
Controllable spin-dependent transport in armchair graphene nanoribbon structures
Creators: name: Nguyen, V. Hung
name: Do, V. Nam
name: Bournel, A.
name: Nguyen, V. Lien
name: Dollfus, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Using the non-equilibrium Green's functions formalism in a tight binding model, the spin-dependent transport in armchair graphene nanoribbon (GNR) structures controlled by a ferromagnetic gate is investigated. Beyond the oscillatory behavior of conductance and spin polarization with respect to the barrier height, which can be tuned by the gate voltage, we especially analyze the effect of width-dependent band gap and the nature of contacts. The oscillation of spin polarization in the GNRs with a large band gap is strong in comparison with 2D-graphene structures. Very high spin polarization (close to 100%) is observed in normal-conductor/graphene/normal-conductor junctions. Moreover, we find that the difference of electronic structure between normal conductor and graphene generates confined states in the device which have a strong influence on the transport quantities. It suggests that the device should be carefully designed to obtain high controllability of spin current.
description: 8 pages, 7 figures
Il vento che frena la formazione stellare
Creators: Francesca Aloisio
Publisher: name: Media Inaf
Year: 2016

Circa 11 milardi di anni fa il ritmo a cui le stelle nascevano nell’universo è rallentato, ma perché? Lo studio di un team di ricerca della Johns Hopkins sembra aver trovato la soluzione al mistero: il colpevole è il vento di materia, anzi, i quasar che lo emettono
Il lato non tanto oscuro della Luna
Creators: Elisa Nichelli
Publisher: name: Media Inaf
Year: 2016

La Luna ci mostra sempre la stessa faccia, grazie alla rotazione sincrona con la Terra. Ma uno studio appena uscito su Nature dimostra che 3.5 miliardi di anni fa lo scenario era molto diverso. La scoperta potrà aiutarci a indagare il passato del nostro satellite e del nostro pianeta, e forse anche a svelare l’origine dell’acqua che si trova sulle loro superfici
Stelle letali
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2016

Pubblicato su Nature Communications uno studio sui superflares: intense tempeste stellari che, se investissero la Terra, darebbero origine a distruzioni apocalittiche. Nel gruppo di ricerca internazionale anche due ricercatori dell’INAF di Catania, Antonio Frasca e Alfio Bonanno
Electrically-induced n-i-p junctions in multiple graphene layer structures
Creators: name: Ryzhii, M.
name: Ryzhii, V.
name: Otsuji, T.
name: Mitin, V.
name: Shur, M. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Fermi energies of electrons and holes and their densities in different graphene layers (GLs) in the n- and p-regions of the electrically induced n-i-p junctions formed in multiple-GL structures are calculated both numerically and using a simplified analytical model. The reverse current associated with the injection of minority carriers through the n- and p-regions in the electrically-induced n-i-p junctions under the reverse bias is calculated as well. It is shown that in the electrically-induced n-i-p junctions with moderate numbers of GLs the reverse current can be substantially suppressed. Hence, multiple-GL structures with such n-i-p junctions can be used in different electron and optoelectron devices.
description: 7 pages, 6 figures
Il futuro dell’astrobiologia in 5 punti
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2016

John Brucato (OA-Arcetri) illustra i punti attorno ai quali coordinare la ricerca europea: studiare l’origine ed evoluzione dei sistemi planetari, capire come si sono formati i composti organici nello spazio, comprendere le interazioni tra rocce e materia organica, definire quali ambienti nel nostro Sistema solare o in altri sistemi planetari sia abitabile e trovare tracce di vita nei corpi del Sistema Solare
title: Ð¡Ð±Ð¾ÑÐ½Ð¸Ðº Ð·Ð°Ð´Ð°Ð½Ð¸Ð¹ Ð´Ð»Ñ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð½ÑÑÐ¸Ð¹ Ð¸ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾ ÑÐ°Ð·Ð´ÐµÐ»Ñ "Ð¤Ð¸Ð½Ð°Ð½ÑÑ ÑÐ¾ÑÐ³Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ"
title: Ð¿ÑÐ°ÐºÑÐ¸ÐºÑÐ¼
titleType: Subtitle
Creators: name: ÐÐ²Ð¸Ñ, Ð Ð¸Ð¼Ð¼Ð°
name: ÐÐ»ÑÐ¸Ð½Ð°, ÐÐ»ÑÐ³Ð°
Publisher: name: Ð¡ÐÐ±ÐÐ¢Ð­Ð£
Year: 2012
Subjects: ÑÐ¾ÑÐ³Ð¾Ð²ÑÐµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
ÑÐ¸Ð½Ð°Ð½ÑÑ

description: Ð ÑÑÐµÐ±Ð½Ð¾Ð¼ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¸ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð·Ð°Ð´Ð°Ð½Ð¸Ñ Ð´Ð»Ñ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð·Ð°Ð½ÑÑÐ¸Ð¹, Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ð´Ð»Ñ Ð¾Ð±ÑÑÐ¶Ð´ÐµÐ½Ð¸Ñ Ð¸ ÑÐ°Ð¼Ð¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ, ÑÐµÑÑÑ Ð¿Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ Ð·Ð½Ð°Ð½Ð¸Ð¹, Ð·Ð°Ð´Ð°ÑÐ¸ Ð´Ð»Ñ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ
Ð¸ Ð¸Ð½Ð´Ð¸Ð²Ð¸Ð´ÑÐ°Ð»ÑÐ½ÑÐµ Ð·Ð°Ð´Ð°Ð½Ð¸Ñ Ð´Ð»Ñ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð´ÑÐºÑÐ° Â«ÐÐ»ÑÑ-Ð¤Ð¸Ð½Ð°Ð½ÑÑÂ» Ð¿Ð¾ ÑÐ°Ð·Ð´ÐµÐ»Ñ Â«Ð¤Ð¸Ð½Ð°Ð½ÑÑ ÑÐ¾ÑÐ³Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸ÑÂ» ÐºÑÑÑÐ° Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°, Ð°Ð½Ð°Ð»Ð¸Ð·
Ð¸ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÑÐ¾ÑÐ³Ð¾Ð²Ð»Ð¸Â». Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð²ÑÐµÑ ÑÐ¾ÑÐ¼ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐ¸ Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ° Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸ (Ð² ÑÐ¾ÑÐ³Ð¾Ð²Ð»Ðµ, Ð¾Ð±ÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ð¼ Ð¿Ð¸ÑÐ°Ð½Ð¸Ð¸)Â», Ð° ÑÐ°ÐºÐ¶Ðµ
Ð´Ð»Ñ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ¾Ð², Ð¾Ð±ÑÑÐ°ÑÑÐ¸ÑÑÑ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÑÐ¼ Â«Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°Â» Ð¸ Â«Ð¢Ð¾ÑÐ³Ð¾Ð²Ð¾Ðµ Ð´ÐµÐ»Ð¾Â».
Tables S1 and S2 from Non-numerical strategies used by bees to solve numerical cognition tasks
Creators: name: MaBouDi, HaDi
name: Barron, Andrew B.
name: Li, Sun
name: Honkanen, Maria
name: Loukola, Olli
name: Peng, Fei
name: Li, Wenfeng
name: Marshall, James A. R.
name: Cope, Alex
name: Vasilaki, Eleni
name: Solvi, Cwyn
Publisher: name: The Royal Society
Year: 2021

description: We examined how bees solve a visual discrimination task that uses stimuli commonly found in numerical cognition studies. Bees performed well on the task, but additional tests showed that they had learned continuous (non-numerical) cues. A network model using biologically plausible visual feature filtering and a simple associative rule was capable of learning the task using only continuous cues inherent in the training stimuli, with no numerical processing. This model was also able to reproduce behaviours that have been considered in other studies indicative of numerical cognition. Our results support the idea that a sense of magnitude may be more primitive and basic than a sense of number. Our findings highlight how problematic inadvertent continuous cues can be for studies of numerical cognition. This remains a deep issue within the field that requires increased vigilance and cleverness from the experimenter. We suggest ways of better assessing numerical cognition in non-speaking animals, including assessing the use of all alternative cues in one test, using cross-modal cues, analysing behavioural responses to detect underlying strategies and finding the neural substrate.
Positivity of the virial coefficients in lattice dimer models and upper
  bounds on the number of matchings on graphs
Creators: name: P. Butera
name: P. Federbush
name: M. Pernici
Publisher: name: INFN Open Access Repository
Year: 2015

description: Using a relation between the virial expansion coefficients of the pressure
and the entropy expansion coefficients in the case of the monomer-dimer model
on infinite regular lattices, we have shown that, on hypercubic lattices of any
dimension, the virial coefficients are positive through the 20th order. We have
observed that all virial coefficients so far known for this system are positive
also on infinite regular lattices with different structure. We are thus led to
conjecture that the virial expansion coefficients $m_k $ are always positive.
These considerations can be extended to the study of related bounds on finite
graphs generalizing the infinite regular lattices, namely the finite grids and
the regular biconnected graphs. The validity of the bounds $\Delta^k {\rm
ln}(i! N(i)) \le 0$ for $k \ge 2$, where $N(i)$ is the number of configurations
of $i$ dimers on the graph and $\Delta$ is the forward difference operator, is
shown to correspond to the positivity of the virial coefficients. Our tests on
many finite lattice graphs indicate that on large lattices these bounds are
satisfied, giving support to the conjecture on the positivity of the virial
coefficients. An exhaustive survey of some classes of regular biconnected
graphs with a not too large number $v$ of vertices shows only few violations of
these bounds. We conjecture that the frequency of the violations vanishes as $v
\to \infty$. We find rigorous upper bounds on $N(i)$ valid for arbitrary graphs
and for regular graphs. The similarity between the Heilman-Lieb inequality and
the one conjectured above suggests that one study the stricter inequality $m_k
\ge \frac{1}{2k}$ for the virial coefficients, which is valid for all the known
coefficients of the infinite regular lattice models.
Scandalosamente splendenti
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2016

Le ha scoperte, spigolando fra dati di Planck, un laureando della University of Massachusetts Amherst. Hanno circa dieci miliardi di anni e, commenta Carlo Burigana dell’INAF, «appaiono davvero come dei “mostri astrofisici”: si tratta probabilmente di galassie con una straordinaria attività di formazione stellare»
title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ð¸ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ° Ð½Ð° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ°
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¸ÑÐ½ÑÐº, Ð¡ÐµÑÐ³ÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: ÐÐµÐ½ÐµÑÐ°ÑÐ¾ÑÑ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ
ÐÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð¼ÐµÑÐ¾Ð´
Ð¼ÑÐ¼Ñ
Ð²ÑÑ Ð¾Ð´Ð½Ð°Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ

description: Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¾ÑÐ½Ð¾Ð²Ñ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÑÐ²Ð°, ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð², Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ ÐºÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð°Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ° Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð¾Ð´ÑÐ»ÐµÐ¹. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÐÐ­ÐÐ¡ - ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¹ Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ ANSYS.
C’è acqua sulla superficie di Cerere
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2016

Scoperta dal team della missione Dawn della Nasa. Fondamentali per individuarla sono state le osservazioni condotte dallo spettrometro italiano VIR, fornito dall’agenzia Spaziale Italiana (ASI) sotto la guida scientifica di Maria  Cristina De Sanctis dell’INAF-IAPS di Roma
Do strange stars exist in the Universe?
Creators: name: Bombaci, Ignazio
Publisher: name: INFN Open Access Repository
Year: 1999

description: Definitely, an affirmative answer to this question would have implications of
fundamental importance for astrophysics (a new class of compact stars), and for
the physics of strong interactions (deconfined phase of quark matter, and
strange matter hypothesis). In the present work, we use observational data for
the newly discovered millisecond X-ray pulsar SAX J1808.4-3658 and for the
atoll source 4U 1728-34 to constrain the radius of the underlying compact
stars. Comparing the mass-radius relation of these two compact stars with
theoretical models for both neutron stars and strange stars, we argue that a
strange star model is more consistent with SAX J1808.4-3658 and 4U 1728-34, and
suggest that they are likely strange star candidates.
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð° Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¾ÑÐ¾Ð½Ð¸Ð½Ð° , ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»
Ð¾ÑÐµÐ½ÐºÐ° Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°
ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼
ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÐµÐ½ÐºÐ¸

description: Ð¦ÐµÐ»Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ- ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð° ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ÐÐÐ Â«ÐÐ-ÐÐµÐºÐ¾ÑÂ». ÐÑÐµÐ´Ð¼ÐµÑÐ¾Ð¼ ÑÐ²Ð»ÑÑÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾Ð´ÑÐ¾Ð´Ñ, Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ñ Ð¸ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°. ÐÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ Ð·Ð½Ð°ÑÐ¸Ð¼Ð¾ÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð°ÐºÐ»ÑÑÐ°ÐµÑÑÑ Ð² ÑÐ¾Ð¼, ÑÑÐ¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÐµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸, Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÑÑ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¸Ð½ÑÐµÑÐµÑ Ð´Ð»Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°, ÑÑÐ¾ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ Ð¼Ð¾Ð¶ÐµÑ Ð¿Ð¾Ð²ÑÑÐ¸ÑÑ ÐºÐ¾Ð½ÐºÑÑÐµÐ½ÑÐ¾ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑ ÐÐÐ Â«ÐÐ-ÐÐµÐºÐ¾ÑÂ». ÐÑÐ¸ Ð½Ð°Ð¿Ð¸ÑÐ°Ð½Ð¸Ð¸ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾, ÑÑÐ°ÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ ÑÐ¸Ð½ÑÐµÐ·Ð°, Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ¸ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°, Ð¾Ð¿ÑÐ¾Ñ, Ð°Ð½ÐºÐµÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð´Ñ.
La supernova e la sua (forse) compagna
Creators: Elisa Nichelli
Publisher: name: Media Inaf
Year: 2016

Un team internazionale di ricercatori, monitorando la supernova di tipo Ia SN 2012cg per diverse settimane, potrebbe aver catturato per la prima volta l’emissione proveniente dalla stella compagna. «Un risultato importante, ma forse è ancora presto per cantare vittoria», commenta Filippo Mannucci dell’INAF di Arcetri
Determination of receiver code bias variations with a modified geometry-free GNSS model
Creators: name: Ke, Cheng
name: Sheng, Chuanzhen
name: Wang, Shengli
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Receiver code biases (RCBs) have long been identified as time-constant. However, RCBs can exhibit remarkable intraday variability, which affects GNSS-based ionospheric retrieval and timing applications with different combinations. Previous studies remain on characterizing the variation of geometry-free linear combinations. In this contribution, we propose a modified geometry-free (MGF) GNSS model to extract the receiver code bias variations (RCBVs). We collect 153 stations to test the MGF model and characterize the estimated RCBVs. The results show that RCBVs bear a strong linear correlation with intraday temperature, which is receiver and constellation dependent. Many stations exhibit significant RCBV, even 10% of stations, of which RCBV exceeds 5 ns.
Invariant Manifolds for Competitive Systems in the Plane
Creators: name: Kulenovic, Mustafa
name: Merino, Orlando
Publisher: name: arXiv
Year: 2009
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C05; 39A05

description: Let $T$ be a competitive map on a rectangular region $\mathcal{R}\subset \mathbb{R}^2$, and assume $T$ is $C^1$ in a neighborhood of a fixed point $\bar{\rm x}\in \mathcal{R}$. The main results of this paper give conditions on $T$ that guarantee the existence of an invariant curve emanating from $\bar{\rm x}$ when both eigenvalues of the Jacobian of $T$ at $\bar{\rm x}$ are nonzero and at least one of them has absolute value less than one, and establish that $\mathcal{C}$ is an increasing curve that separates $\mathcal{R}$ into invariant regions. The results apply to many hyperbolic and nonhyperbolic cases, and can be effectively used to determine basins of attraction of fixed points of competitive maps, or equivalently, of equilibria of competitive systems of difference equations. Several applications to planar systems of difference equations with non-hyperbolic equilibria are given.
description: 20 pages, 2 figures
Detecting Ultra High Energy Neutrinos by Upward Tau Airshowers and Gamma
  Flashes
Creators: name: Fargion, Daniele
Publisher: name: Sources and Detection of Dark Matter and Dark Energy in the
  Universe. February 23-25, 2000, California, USA. Edited by David B. Cline.
  Published by Springer-Verlag, Berlin, New York, ISBN 3-540-41216-6, p.516
Year: 2000

description: Tau Air-showers are the best trace of rarest Ultra High Energy neutrinos UHE
$\nu_{\tau}$, $\bar\nu_{\tau}$ and $\bar{\nu}_e$ at PeV and higher energy.
$\tau$ Air-showers may generate billion times amplified signals by their
secondaries . Horizontal amplified $\tau$ air-showers by $\nu_{\tau} N$ and UHE
$\bar\nu_{e} e$ at PeV emerging from mountain chain might be the most
power-full imprint. Upward UHE $\nu_{\tau} N$ interaction on Earth crust at
horizontal edge and from below, their consequent UHE $\tau$ air-showers beaming
toward high mountains should flash $\gamma$,$\mu$,X and optical detectors on
the top.
  Upward $\tau$ air-shower may hit nearby satellite flashing them by short,
hard, diluted $\gamma-$burst at the edge of Gamma Ray Observatory BATSE
threshold. We identify these events with recent (1994) discovered upward
Terrestrial Gamma Flashes (TGF) and we probed their UHE $\tau$ - UHE $\nu_\tau$
origin. From these TGF data approximated UHE $\nu_\tau$ flux and $\Delta
m_{\nu_\mu \nu_\tau}$ sever lower bound are derived. Partial TGF Galactic
signature is also manifest within known 47 TGF events clustered within three
degrees from the Galactic plane at ${\simeq 2\cdot 10^{-3}}$probability. Well
known $X-\gamma-\mathrm{TeV}$ active galactic and extragalactic sources have
found probable counterpart in TGF arrival directions. Detection of elusive UHE
$\nu_\tau$ seem finally achieved.
Discovery of the Barium Isotopes
Creators: name: Shore, A.
name: Fritsch, A.
name: Ginepro, J. Q.
name: Heim, M.
name: Schuh, A.
name: Thoennessen, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Thirty-eight barium isotopes have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.
description: to be published in At. Data Nucl. Data Tables
Così fan tutte, specie invecchiando
Creators: Stefano Parisini
Publisher: name: Media Inaf
Year: 2016

Raggiunta una certa età, tutte le stelle simili al Sole tendono ad assomigliarsi, assumendo comportamenti assai prevedibili. Su questa considerazione si basa un nuovo modello teorico che prende la stella a noi più vicina come riferimento per determinare l’età di tutte quelle simili presenti nella galassia
Farmer Survey Question Library
Creators: name: Brouwer, Jildemarie
name: Miriti, Mercy Makena
name: Keijser, Charlotte
name: Baruffa, Oscar
Publisher: name: IDH
Year: 2024

description: Developed by Akvo for IDH, this question library forms the basis of the standardized survey questions conducted as part of the Inclusive Business Analysis process and is provided here for reference. Inclusive Business Analyses assess the business economics of service delivery to smallholder farmers.

This file should be read in conjunction with the Farmer Survey Methodology.

Note that currently we are not accepting external submissions of data.

This work is made available under the CC4.0 licence, meaning you are free to share, copy or redistribute the material, even commercially, provided you give attribution to IDH.   

You can find this document and results of our analyses and insights at the FarmFit Insights Hub.

To be informed of our latest updates, insights and events, sign up to our Smallholder-Inclusive Business Newsletter.
X Ray Precursors in GRBs and SGRs: outer X tails around a Precessing
  Gamma Jet
Creators: name: Fargion, Daniele
Publisher: name: Frontier in Astr. and Part. Phys. Ed. Giovannelli et al. SIF Conf.
  Vol.73,347-360 (2001)
Year: 2000

description: Weak isolated X-ray precursor events before the main Gamma Ray Burst, GRB,
and also rare Soft Gamma Repeaters, SGR, events are in disagreement with any
Fireball, or Magnetar, scenarios.
  These models are originated by an unique explosive event leading, by
internal-external shock waves, to softer secondary trains following a main
gamma signals. Indeed the earliest GRB980519,GRB981226 events as well as the
latest and most distant identified one as GRB000131 are showing rare but well
identified and distinct X Ray precursor, occurring tens of seconds or even a
minute before the main GRB eruption. These weak X precursors bursts correspond
to non-negligible energy powers, up to million Supernova ones.
  They are rare, about (3-6)% of all GRBs, but not unique.
  Similar huge explosive precursor are in total disagreement with a successive
main Fireball GRB outburst.
  Comparable brief X-ray precursor flashes are found also in rarest and most
detailed SGRs events as those observed on 27 and 29 August 1999 from SGR
1900+14.
  They are inconsistent with a Magnetar Fireball explosion.
  We interpret them as earlier marginal blazing of outlying X conical Jet tails
surrounding a narrower gamma precessing,spinning beamed Jet in blazing mode
toward the Earth; later re-crossing and better hitting of the target -the
satellite detectors- is source of the main GRB (and SGR) observed structured
event.
  The X Ray precursor existence is an additional remarkable evidence of the
Precessing relativistic Jet Nature of both GRBs and SGRs.
title: Ð¢ÑÐ°Ð½Ð·Ð¸ÑÑÐ¾ÑÐ½ÑÐ¹ Ð¡ÐÐ§-Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ, ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐµÐ·Ð¾Ð½Ð°ÑÐ¾ÑÐ¾Ð¼
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÐ±Ð¸Ð½, ÐÑÑÐµÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð¡ÐÐ§-Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ
Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÑÐµÐ·Ð¾Ð½Ð°ÑÐ¾Ñ
ÑÐ°Ð·Ð¾Ð²ÑÐ¹ ÑÑÐ¼
Ð´Ð¾Ð±ÑÐ¾ÑÐ½Ð¾ÑÑÑ
Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾Ð»Ð¾ÑÐºÐ¾Ð²Ð°Ñ Ð»Ð¸Ð½Ð¸Ñ
the microwave generator
dielectric resonator
phase noise
quality factor
microstrip line

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°Ð·ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÑÑÑ Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾Ð»Ð¾ÑÐºÐ¾Ð²ÑÐ¹ ÑÑÐ°Ð½Ð·Ð¸ÑÑÐ¾ÑÐ½ÑÐ¹ Ð¡ÐÐ§-Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ ÑÑÐµÑÑÐ°Ð½ÑÐ¸Ð¼ÐµÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ð° Ð²Ð¾Ð»Ð½, ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐµÐ·Ð¾Ð½Ð°ÑÐ¾ÑÐ¾Ð¼. ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½ÑÑ ÑÐµÐ¿ÐµÐ¹, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð½ÑÑ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐµÐ·Ð¾Ð½Ð°ÑÐ¾ÑÐ¾Ð², ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÑ Ñ Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾Ð»Ð¾ÑÐºÐ¾Ð²ÑÐ¼Ð¸ Ð»Ð¸Ð½Ð¸ÑÐ¼Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ, Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÑÐµÐ¼Ñ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ° Ð¸ ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÐµÐ³Ð¾ ÑÑÐ°ÑÐ¸Ð¾Ð½Ð°ÑÐ½Ð¾Ð³Ð¾ ÑÐµÐ¶Ð¸Ð¼Ð°. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÐ¹ ÑÑÐ°Ð½Ð·Ð¸ÑÑÐ¾ÑÐ½ÑÐ¹ Ð°Ð²ÑÐ¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð½ÑÐ¹ Ð¿Ð¾ Ð³Ð¸Ð±ÑÐ¸Ð´Ð½Ð¾Ð¹ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸.
description: In this work, we developed transistor microwave generator three-centimeter wavelength range on microstrip, stable dielectric resonator. Experimental study shows the characteristics of the resonant circuits formed by the dielectric resonators, which connected with microstrip lines, as well as the study of the influence parameters of the oscillator circuit and the resonance system at the main characteristics of its stationary mode. In result of this work is developed transistor generator, made on hybrid technology.
Tau Air-Showers Signature of Ultra High Energy Neutrinos
Creators: name: Fargion, Daniele
Publisher: name: Frontier Objects in Astrophysics and Particle Physics, Vulcano
  Workshop, ehld 21-27 May, 2000. Edited by F. Giovannelli and G. Mannocchi.
  Italian Physical Society, 2001., p.501
Year: 2001

description: The discover of Ultra High Energy Neutrino of astrophysical nature may be
already reached. Indeed upward and horizontal tau Air-showers emerging from the
Earth crust or mountain chains offer the best and most powerful signal of Ultra
High Energy UHE neutrinos nu_tau}, bar\nu_tau and bar{\nu}_e at PeV and higher
energy. The multiplicity in tau Air-showers secondary particles,N_{opt}
=10^{12}, (E_tau}/ PeV, N_{\gamma}= 10^8 E_tau/ PeV, N_{e^- e^+}= 2 10^7
E_tau/PeV, N_mu =3 10^5 (E_tau/PeV)^{0.85}, make easy its over-amplified
discover. Indeed UHE nu_tau, following Super Kamiokande evidence of neutrino
flavour mixing, should be as abundant as nu_mu. Also anti-neutrino electrons,
bar{\nu}_e, near the Glashow W resonance peak, E_{\bar{\nu_e}} = M^2_W / 2m_e,
may generate tau Air-showers. Such horizontal tau air-showers by nu_{\tau}-N
and UHE bar\nu_{e}-e at PeVs emerging from mountain high chain is one of the
most power-full UHE neutrino imprint. Upward UHE nu_{\tau}- N interaction on
Earth crust at horizontal edge and from below, their consequent UHE tau
air-showers beaming toward high mountains should flash gamma,mu,X and Cherenkov
lights toward detectors located on the top of the mountains or on balloons.
Such upward tau air-shower may hit also nearby satellite flashing them by
short, hard, diluted gamma-burst at the edge of most sensitive Gamma Ray
Observatory BATSE threshold. We identify already these rarest gamma events with
recent (1994) discovered upward Terrestrial Gamma Flashes (TGF); we show their
very probable UHE tau-UHE \nu_\tau origin. Partial TGF Galactic signature and
known galactic and extra-galactic source location are discovered within known
47 TGF events at low, 2 10^{-3}, probability threshold.
Neutron electric polarizability
Creators: name: Alexandru, Andrei
name: Lee, Frank X.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We use the background field method to extract the "connected" piece of the neutron electric polarizability. We present results for quenched simulations using both clover and Wilson fermions and discuss our experience in extracting the mass shifts and the challenges we encountered when we lowered the quark mass. For the neutron we find that as the pion mass is lowered below $500\MeV$, the polarizability starts rising in agreement with predictions from chiral perturbation theory. For our lowest pion mass, $m_π=320\MeV$, we find that $α_n = 3.8(1.3)\times 10^{-4}\fm^3$, which is still only one third of the experimental value. We also present results for the neutral pion; we find that its polarizability turns negative for pion masses smaller than $500\MeV$ which is puzzling.
description: 11 pages, 8 figures, presented at the XXVII International Symposium on Lattice Field Theory, July 26-31, 2009, Peking University, Beijing, China
Strumentazione d’eccellenza per E-ELT
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2016

E' stato firmato nella sede dell’Osservatorio Astrofisico di Arcetri dell’INAF l’accordo tra ESO e il consorzio HIRES guidato dall’Istituto Nazionale di Astrofisica, con il quale prende ufficialmente il via lo studio di progettazione dello spettrografo ad alta risoluzione che equipaggerà il futuro telescopio europeo E-ELT. Il 18 marzo invece è stato siglato il contratto per lo studio di progettazione dello spettrografo MOS, sempre per E-ELT
Horizontal and Upward Tau Airshowers in Valleys from Mountains and
  Space: Discovering UHE Neutrinos and New Physics
Creators: name: Fargion, Daniele
Publisher: name: 27th ICRC 2001,HE2.5, Vol 3, p.1297-1300, Germany, 2001
Year: 2001

description: Upward and horizontal tau Air-showers emerging from the Earth crust or
mountain chains are the most powerful signals of Ultra High Energy UHE
neutrinos nu_{tau}, bar\nu_{tau} and bar{nu}_e at PeVs and higher energy. The
multiplicity in tau Air-showers secondary particles,
N_{opt}=10^{12}(E_{tau}/PeV), N_{gamma}= 10^8*E_{tau}/PeV, N_{e^- e^+}= 2*10^7
E_{tau}/PeV, N_{mu}= 3 *10^5 (E_{tau}/PeV)^{0.85} make easy their discover. UHE
nu_tau,bar\nu_tau, following Super Kamiokande evidence of neutrino flavor
mixing, nu_munu_tau, should be as abundant as nu_mu, bar\nu_mu.
  Also anti-neutrino electrons, bar\nu_e, near the Glashow W resonance energy
peak, E_{bar\nu_e} = M^2_W / 2m_e = 6.3*10^{15} eV may generate tau
Air-showers.
  Upward UHE nu_tau- N interaction on Earth crust at horizontal edge and from
below, their consequent upward UHE tau air-showers beaming toward high
mountains, air-planes, ballons and satellites should flash gamma, mu, X and
Cherenkov lights toward detectors.
  Such upward tau air-shower may already hit nearby satellite GRO gamma
detectors flashing them by short, hard, diluted gamma-burst at the edge of
BATSE threshold.
  The tau air-shower may test the UHE neutrino interactions leading to
additional fine-tuned test of New TeV Physics both in Mountain Valleys and in
Upward showers.
La piccola e solitaria galassia WLM
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2016

La galassia nana irregolare Wolf-Lundmark-Melotte si è sviluppata da sola, lontana dall'influsso delle altre galassie e delle loro popolazioni stellari. Il commento di Enrico V. Held (INAF-OAPd): «Il confronto delle proprietà delle galassie nane isolate, come WLM, con altri satelliti della nostra Via Lattea, aiuterà gli astronomi a capire l'evoluzione di questi affascinanti oggetti»