cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Outlying HII Regions in HI-Selected Galaxies
Creators: name: Werk, J. K.
name: Putman, M. E.
name: Meurer, G. R.
name: Ryan-Weber, E. V.
name: Kehrig, C.
name: Thilker, D. A.
name: Bland-Hawthorn, J.
name: Drinkwater, M. J.
name: Kennicutt, R. C.
name: Wong, O. I.
name: Freeman, K. C.
name: Oey, M. S.
name: Dopita, M. A.
name: Doyle, M. T.
name: Ferguson, H. C.
name: Hanish, D. J.
name: Heckman, T. M.
name: Kilborn, V. A.
name: Kim, J. H.
name: Knezek, P. M.
name: Koribalski, B.
name: Meyer, M.
name: Smith, R. C.
name: Zwaan, M. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from the first systematic search for outlying HII regions, as part of a sample of 96 emission-line point sources (referred to as ELdots - emission-line dots) derived from the NOAO Survey for Ionization in Neutral Gas Galaxies (SINGG). Our automated ELdot-finder searches SINGG narrow-band and continuum images for high equivalent width point sources outside the optical radius of the target galaxy (> 2 X r25 in the R-band). Follow-up longslit spectroscopy and deep GALEX images (exposure time > 1000 s) distinguish outlying HII regions from background galaxies whose strong emission lines ([OIII], Hbeta or [OII]) have been redshifted into the SINGG bandpass. We find that these deep GALEX images can serve as a substitute for spectroscopic follow-up because outlying HII regions separate cleanly from background galaxies in color-color space. We identify seven SINGG systems with outlying massive star formation that span a large range in Halpha luminosities corresponding to a few O stars in the most nearby cases, and unresolved dwarf satellite companion galaxies in the most distant cases. Six of these seven systems feature galaxies with nearby companions or interacting galaxies. Furthermore, our results indicate that some outlying HII regions are linked to the extended-UV disks discovered by GALEX, representing emission from the most massive O stars among a more abundant population of lower mass (or older) star clusters. The overall frequency of outlying HII regions in this sample of gas-rich galaxies is 8 - 11% when we correct for background emission-line galaxy contamination (~75% of ELdots).
description: 20 pages, 14 Figures, Accepted by AJ
MPEC 2023-K109 : 2023 KW1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 KW1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Ð¢ÐµÐ¾ÑÐ¸Ñ Ð¼ÐµÑ Ð°Ð½Ð¸Ð·Ð¼Ð¾Ð² Ð¸ Ð¼Ð°ÑÐ¸Ð½. ÐÐ¸Ð½Ð°Ð¼Ð¸ÐºÐ° ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð°ÑÐ¸Ð½
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ½Ð´ÑÐ¸ÐµÐ½ÐºÐ¾, ÐÐ°Ð²ÐµÐ»
name: ÐÐ°ÑÐ°Ð·Ð¸Ð½, ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸Ñ
name: ÐÐ¾Ð·Ð»Ð¸ÐºÐ¸Ð½, ÐÐµÐ½Ð¸Ñ
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2023
Subjects: ÐÐµÑ Ð°Ð½Ð¸Ð·Ð¼Ñ
ÐÐ°ÑÐ¸Ð½Ñ
Ð­Ð½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ

description: Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿Ð¾ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ðµ Â«Ð¢ÐµÐ¾ÑÐ¸Ñ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ð¾Ð² Ð¸ Ð¼Ð°ÑÐ¸Ð½Â» ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ 13.03.03 Â«Ð­Ð½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸ÐµÂ». ÐÐ·Ð»Ð¾Ð¶ÐµÐ½ Ð»ÐµÐºÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð» Ð¿Ð¾ ÑÐ°Ð·Ð´ÐµÐ»Ñ Â«ÐÐ¸Ð½Ð°Ð¼Ð¸ÐºÐ°Â» Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«Ð¢ÐµÐ¾ÑÐ¸Ñ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ð¾Ð² Ð¸ Ð¼Ð°ÑÐ¸Ð½Â». ÐÑÐ²ÐµÑÐµÐ½Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÑ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸ ÑÐ¾ÑÐ¾ÑÐ½ÑÑ Ð¼Ð°ÑÐ¸Ð½Ð½ÑÑ Ð°Ð³ÑÐµÐ³Ð°ÑÐ¾Ð² Ñ Ð¶ÐµÑÑÐºÐ¸Ð¼ Ð¸ ÑÐ¿ÑÑÐ³Ð¸Ð¼ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¾ÑÐ½ÑÐ¼ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ð¾Ð¼, Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸ ÑÐ¸ÐºÐ»Ð¾Ð²ÑÑ Ð¼Ð°ÑÐ¸Ð½, Ð° ÑÐ°ÐºÐ¶Ðµ Ð²Ð¸Ð±ÑÐ¾Ð·Ð°ÑÐ¸ÑÑ Ð¸ Ð²Ð¸Ð±ÑÐ¾Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ð¸. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð²ÑÐµÑ Ð¿ÑÐ¾ÑÐ¸Ð»ÐµÐ¹ Ð¸ ÑÐ¾ÑÐ¼ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ 13.03.03 Â«Ð­Ð½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸ÐµÂ», Ð° ÑÐ°ÐºÐ¶Ðµ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð·Ð°Ð¾ÑÐ½Ð¾Ð¹ ÑÐ¾ÑÐ¼Ñ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¹ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ 15.03.01 Â«ÐÐ°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸ÐµÂ», 15.03.02 Â«Ð¢ÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð°ÑÐ¸Ð½Ñ Ð¸ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸ÐµÂ», 15.03.04 Â«ÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Â», 15.03.05 Â«ÐÐ¾Ð½ÑÑÑÑÐºÑÐ¾ÑÑÐºÐ¾-ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Â», 15.03.06 Â«ÐÐµÑÐ°ÑÑÐ¾Ð½Ð¸ÐºÐ° Ð¸ ÑÐ¾Ð±Ð¾ÑÐ¾ÑÐµÑÐ½Ð¸ÐºÐ°Â».
Donne e spazio, una strada in salita
Creators: Patrizia Caraveo
Publisher: name: Media Inaf
Year: 2018

Dalla totale cancellazione delle candidate al programma Mercury fino ai giorni nostri, la presenza femminile negli equipaggi spaziali sta lentamente crescendo. Ma nei futuri viaggi spaziali la parità di genere sarà una necessità, non una scelta. Con il consenso dell'autrice, Patrizia Caraveo, vi riproponiamo quest'articolo apparso ieri sul Sole 24 Ore
title: Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿Ð»Ð°ÑÐµÐ¶ÐµÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑÑ Ð¸ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑÑ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÑÑÐºÐ¾Ð²Ð°, 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: ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿Ð»Ð°ÑÐµÐ¶ÐµÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑÑ
ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð°Ñ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ
ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
Ð»Ð¸ÐºÐ²Ð¸Ð´Ð½Ð¾ÑÑÑ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ

description: Ð¦ÐµÐ»ÑÑ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¿Ð»Ð°ÑÐµÐ¶ÐµÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÐ¸ Ð¸ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐÐÐ Â«ÐÐÐ¡Ð¢Ð Ð£ÐÐ¢ÐÐ ÐÐ¡ÐÐ ÐÐÐ¡Â», Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼ Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸ Ð¿Ð»Ð°ÑÐµÐ¶ÐµÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑÑ Ð¸ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑÑ Ð½Ð° Ð´Ð°Ð½Ð½Ð¾Ð¼ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹. ÐÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð»Ð°ÑÐµÐ¶ÐµÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑÑ Ð¸ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑÑ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¸ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð´Ð°Ð½Ð½ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹.
Lbt coglie la luce di Gw 170817
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2018

Il Large binocular telescope immortala il debolissimo segnale luminoso associato all'afterglow del lampo di raggi gamma Grb 170817 prodotto dalla fusione di due stelle di neutroni. La ripresa è stata ottenuta da un team guidato da ricercatori dell'Inaf
In Antartide per capire se c’è vita su Marte
Creators: Ufficio stampa CNR
Publisher: name: Media Inaf
Year: 2018

Un team di ricerca al quale partecipa anche l’Istituto per l’ambiente marino costiero del Cnr sta studiando le forme di vita nelle brine dei laghi ghiacciati del Polo Sud, ambienti che ripropongono condizioni estreme simili a quelle presenti sul Pianeta Rosso. La ricerca è stata pubblicata su Scientific Reports
Giove: le lune si specchiano sulle aurore polari
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2018

Lo strumento a bordo della sonda Juno svela il segreto delle impronte lunari nel sistema gioviano: invece di proiettare una singola ombra sulle aurore di Giove, la luna Io ne lascia una lunga serie altalenante, mentre la più grande luna di Giove, Ganimede, proietta una doppia ombra aurorale la cui forma precisa non era mai stata osservata in precedenza. Il commento di Alessandro Mura (Inaf di Roma) e Angelo Ovieri (Asi). Lo studio su Science
MPEC 2023-K110 : 2023 KX1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 KX1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Het gebruik van SolACE microbiële consortiamet DCM Minigran®technologie in de praktijk
Creators: name: Van Dyck, Michelle
Publisher: name: Zenodo
Year: 2022
Subjects: SolACEPA

description: Probleemstelling: Door de stijgende vraag naar meer duurzame landbouw met minder meststoffen (stikstof en fosfor) en door toenemende perioden van langdurige droogte, staat de Europese landbouw momenteel voor grote uitdagingen. Oplossing: Microbiële inoculatiemiddelen zijn bodemverbeteraars en/of biostimulanten met nuttige micro-organismen (bacteriën of schimmels) die vooral in de biologische landbouw gebruikt worden om de groei en gezondheid van planten te bevorderen. In het kader van het SolACE project werden microbiële inoculatiemiddelen geselecteerd op basis van hun capaciteit om plantengroei te bevorderen onder gecombineerde droogte- en nutriëntenstress bij broodtarwe en aardappel. D.m.v. de DCM Minigran® technologie (Fig. 1) werden korrelvormige dragers ontwikkeld om de werkzaamheid van de microbiële inoculatiemiddelen gedurende langere tijd te kunnen waarborgen en een gebruiksvriendelijke toepassing in de praktijk mogelijk te maken. Deze combinatie van de DCM Minigran® korrels met microbiële consortia wordt verder Minigran® consortia genoemd. Recent werd een serreproef met aardappelen uit zaad uitgevoerd door de Universiteit Hohenheim (Duitsland), waarbij Minigran® consortia werden toegepast in een gestandaardiseerd droogtestress-screeningsysteem. Hier zag men positieve effecten op plantengroei, verbeterde knolontwikkeling en minder schade door droogte.
La controversa origine dell’ossigeno molecolare
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2018

Gli scienziati hanno scoperto che l'ossigeno molecolare trovato attorno alla cometa 67P non è prodotto sulla sua superficie, come era stato suggerito, ma verosimilmente proviene dal suo nucleo e ha pertanto un’origine primordiale. Tutti i dettagli su Nature Communications
Il Sole più piccolo dell’anno: siamo all’afelio
Creators: Matteo Boni
Publisher: name: Media Inaf
Year: 2018

Domani, venerdì 6 luglio 2018, alle 18:47 ora italiana, la Terra raggiungerà la massima distanza dal Sole durante la sua orbita annuale: 152.095.566 chilometri. Ne parliamo con Sandro Bardelli dell’Inaf di Bologna
Scene di vita quotidiana al Polo Sud
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2018

Mentre in Italia ci siamo lasciati alle spalle il solstizio d’estate, al Polo Sud i 13 winter-over della spedizione italo-francese a Dome C, da sette mesi confinati alla Stazione Concordia, nell’altopiano antartico, festeggiano il giro di boa di metà inverno. Chi sono e cosa fanno ce lo racconta come di consueto il nostro specialissimo “inviato” Marco Buttu, dell’Inaf di Cagliari
KIBERFIZIK TIZIMLAR VA ULARNING QO'LLANISHI
Creators: name: Qodirov, Farrux
name: Saidova, Mohinur
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada kiberfizik tizimlar (CPS) ning asosiy tamoyillari, tarmoqlarda qo‘llanilishi va inson hayotiga ta’siri,hayotimizdagi o'rni,sog'liqni saqlash, transport, elektr energetika, qishloq xo'jaligi,mudofaa va aqlli shaharlar kabi sohalarda king qo'llanilishi tahlil qilingan. Maqolada CPS ning afzalliklari – samaradorlikni oshirish, taklif va xulosalar berib o'tilgan,  inson hayotini yengillashtirish kabi jihatlar batafsil yoritilgan.Bundan tashqari maqolada texnologiyalarning rivojlanish yo‘nalishlari va ularni mahalliy sanoatga joriy etish bo‘yicha takliflar berilgan. Maqola kiberfizik tizimlar, informatika va raqmli texnologiyalar faniga qiziquvchilarga manfaatli bo'ladi degan umiddaman.
Eta Carinae spara raggi cosmici
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2018

Un nuovo studio che utilizza i dati del telescopio spaziale NuStar suggerisce che Eta Carinae, il sistema stellare più luminoso e massiccio entro 10mila anni luce da noi, sta accelerando particelle ad altissima energia, alcune delle quali potrebbero raggiungere la Terra ed essere rivelate come raggi cosmici. I risultati su Nature Astronomy.
title: ÐÐ½ÐµÐ´ÑÐµÐ½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ° Ð² ÐÐÐ Â«ÐÐ¤Ð ÐÐ°Ð½ÐºÂ»
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¦ÑÑÐµÐ½Ð´Ð°ÑÐ¸ÐµÐ²Ð°, ÐÑÐ½Ð°
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°Ð½Ðº
Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾Ñ
Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð½Ð°ÑÑÑÐ¾Ð¹ÐºÐ°
Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸ÑÑÑ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ° Ð² ÐÐÐ Â«ÐÐ¤Ð ÐÐ°Ð½ÐºÂ». ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð¾Ð±Ð¾ÑÐ¾ÑÐ° ÐÐ°Ð½ÐºÐ° Ð±ÑÐ»Ð¸ Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ñ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼Ñ Ð¿ÑÐ¾Ð´ÑÐºÑÑ. ÐÑÐ±Ð¾Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¿Ð¾Ð´ÑÐ¾Ð´ÑÑÐµÐ¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð±ÑÐ» Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð¿Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¿Ð¾Ð¿ÑÐ»ÑÑÐ½ÑÑ Ð½Ð° ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¼ ÑÑÐ½ÐºÐµ Ð¡Ð­Ð Ð¸ Ð¸Ñ ÑÐºÑÐ¿ÐµÑÑÐ½ÑÑ Ð¾ÑÐµÐ½Ð¾Ðº. ÐÐ¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ° ÑÐ¸ÑÑÐµÐ¼Ñ Ðº Ð²Ð²Ð¾Ð´Ñ Ð² ÑÐºÑÐ¿Ð»ÑÐ°ÑÐ°ÑÐ¸Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð°ÑÑ Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ Ð½ÑÐ¶Ð´Ð°Ð¼Ð¸ ÐÐ°Ð½ÐºÐ°. ÐÐ¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð½ÑÑ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ðµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ: ÑÐ¾ÐºÑÐ°ÑÐµÐ½Ð¸Ðµ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÐºÐ¾ÑÐ¿Ð¾ÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð¹ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸ Ð¸ Ð¸Ñ Ð¿Ð¾Ð¸ÑÐºÐ°, Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ°Ð±Ð¾ÑÑ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ð¸ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ°Ð²Ð»Ð¸Ð²Ð°ÐµÐ¼ÑÑ Ð¸Ð¼Ð¸ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ Ð¸ÑÐ¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÑÐºÐ¾Ð¹ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Ð¸ Â«Ð¿ÑÐ¾Ð·ÑÐ°ÑÐ½Ð¾ÑÑÐ¸Â» Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð² Ð´Ð»Ñ Ð²ÑÐµÑ ÐµÐ³Ð¾ ÑÑÐ°ÑÑÐ½Ð¸ÐºÐ¾Ð².
Test a tre stelle per Albert Einstein
Creators: Matteo Boni
Publisher: name: Media Inaf
Year: 2018

Lo studio di un sistema triplo di stelle molto estreme, a 4200 anni luce da noi, dà ancora ragione alla Relatività generale, andando ad aggiungersi alle centinaia di conferme che la teoria di Einstein ha ottenuto in poco più di un secolo dalla sua formulazione. I risultati sono stati pubblicati oggi su Nature
title: ÐÑÐ±Ð¾Ñ Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ Ð³Ð»Ð°Ð²Ð½Ð¾Ð³Ð¾ Ð¿Ð¸ÑÐ°ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð°ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð°Ð³ÑÐµÐ³Ð°ÑÐ° ÐÐÐÐ-2500-80 Ð´Ð»Ñ ÑÐ½ÐµÑÐ³Ð¾Ð±Ð»Ð¾ÐºÐ° ÐÐ­Ð¡
title: The choice of the flow section of the main feeding pump GPNA-2500-80 for nuclear power plant
Creators: name: ÐÐµÐ»Ð¸Ðº, ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
name: ÐÐ°Ð²Ð»Ð¾Ð², ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
name: ÐÐ²Ð°Ð½Ð¾Ð², ÐÐ²Ð³ÐµÐ½Ð¸Ð¹
name: Ð¨ÑÐ¼Ð¸Ð»Ð¸Ð½, Ð¡ÐµÑÐ³ÐµÐ¹
name: "ÐÐ¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð°ÑÐ¸Ð½Ñ, Ð³Ð¸Ð´ÑÐ¾Ð¿Ð½ÐµÐ²Ð¼Ð¾Ð¿ÑÐ¸Ð²Ð¾Ð´Ñ Ð¸ Ð³Ð¸Ð´ÑÐ¾Ð¿Ð½ÐµÐ²Ð¼Ð¾Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÐºÐ°. Ð¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð¸ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ñ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð¾-ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (2018; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2018
Subjects: ÐÐ°ÑÐ¾ÑÑ Ð¿Ð¸ÑÐ°ÑÐµÐ»ÑÐ½ÑÐµ
ÐÑÑÑÑ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ
Ð ÐµÐ´ÑÐºÑÐ¾ÑÑ

description: Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð´Ð²Ð° Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ° Ð¸ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð¿Ð¸ÑÐ°ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð°ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð°Ð³ÑÐµÐ³Ð°ÑÐ° Ñ Ð¾ÑÐµÐ½ÐºÐ¾Ð¹ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ Ð¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»ÑÐ½ÑÑ Ð·Ð°ÑÑÐ°Ñ. ÐÑÐ´Ð°ÐµÑÑÑ Ð¿ÑÐµÐ´Ð¿Ð¾ÑÑÐµÐ½Ð¸Ðµ Ð¼Ð¾Ð½Ð¾Ð±Ð»Ð¾ÑÐ½Ð¾Ð¼Ñ Ð²Ð°ÑÐ¸Ð°Ð½ÑÑ Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ Ñ Ð¿ÑÐµÐ´Ð²ÐºÐ»ÑÑÐµÐ½Ð½ÑÐ¼ ÐºÐ¾Ð»ÐµÑÐ¾Ð¼ Ð¾ÑÐµÐ²Ð¾Ð³Ð¾ ÑÐ¸Ð¿Ð°.
description: The paper considered two options performance of the main feeding pump with assessment of performance characteristics and material costs. Preference was given monoblock variant of the flow section with the inducer.
Cerebral Angiography in Moyamoya Syndrome Secondary to Vasculopathy in Down Syndrome
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2020

description: Moyamoya disease (MMD) is an idiopathic intracranial vasculopathy characterized by progressive bilateral stenosis or occlusion of the terminal internal carotid arteries (ICA) and their main branches with compensatory collateral angiogenesis. It is more prevalent among Asian populations and has a typical angiographic appearance. A similar angiographic pattern is associated with vasculopathy due to several medical conditions including Down syndrome and is termed Moyamoya syndrome [1].

A 29-year-old non-Asian woman with Down syndrome was presented with acute headache, transient visual loss, and transient confusion for two days prior to admission. MRI confirmed acute infarction in the left middle cerebral artery (MCA) territory, mainly in the left parietal lobe. CT angiography suggested bilateral MCA stenosis and near occlusion, and asymmetric vascular blush. Diagnostic cerebral angiography confirmed MMS pattern with high grade focal stenosis of M1 segment of left MCA (Figure 1), and near occlusion of proximal M1 segment of right MCA with reconstitution via collateral arteries, and prominence of the lenticulostriate perforating vessels with significantly reduced capillary filling distally (Figure 2). Collateral circulation was from leptomeningeal vessels from the posterior cerebral artery filling the temporal and parietal lobes. There was sparing of the terminal ICAs, the external carotid artery branches, and posterior circulation suggesting an early stage disease. At 4 months follow up, there was no recurrence of symptoms after three months of dual antiplatelet therapy (Aspirin 325 mg and Clopidogrel 75 mg daily) following by single antiplatelet. At nine months, a follow-up MRI brain showed new lacunar infarct in the right medial frontal lobe white matter. Patients did not develop new neurological deficits.
An investigation of the ownership and control of American corporations.
Creators: name: Plotkins, Robert Jeans
Publisher: name: University of British Columbia
Year: 2011

description: The modern corporation did not reach its present position of importance in economic and social fact without a long struggle marked by an increasing liberalization of incorporation process and appreciation of its merits by businessmen. This led to the rise of the corporate system and resulted in the concentration of industry in this form. The concentration of economic power in the corporate form was followed by the separation of ownership and management. This process of change lasted several decades and was aided by the increasingly wide dispersion of ownership among thousands upon thousands of scattered shareholders. Historically control was exercised by ownership of a majority of the voting stock. This was a proprietary right. As corporations grew in size and economic importance, ownership began to disperse and control through less than majority ownership evolved. This was aided by legal devices and various techniques that made control possible with a minimum of investment. The bulk of the shareholders were slowly losing their rights and voice in management. The coup was complete with the advent of management control, which stemmed from the wide dispersal of ownership among small scattered stockholders. The rise of the institutional investors completes the circuit with the concentration of holdings in institutional portfolios. Thus, control may once more be dependent on ownership for its existence. The changes that this evolution has brought about have had their effect on the system. Management control, the dominant form of control in industry, at present, has many inherent dangers. Profit is no longer the only motivating force driving the controlling group. The corporation has become a prominent citizen in the community in which it resides, ruled by men accountable to themselves alone. Gone: are the inherent checks on management and the ability to oust them when they become slack or dishonest. Control has become a power position in the economy with no proprietary right to the situation. Ownership has been reduced to the passive position of receiving dividends.
I fuochi d’artificio di Hubble per il 4 luglio
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2018

Nell'immagine l'ammasso stellare nella nebulosa Ngc 3603 a 20mila anni luce di distanza nella costellazione della Carena. Le stelle di questo cluster sono giovani ma vivranno per poco, terminando la loro vita in spettacolari esplosioni di supernova
Multiple conducting carriers generated in LaAlO3/SrTiO3 heterostructures
Creators: name: Seo, S. S. A.
name: Marton, Z.
name: Choi, W. S.
name: Hassink, G. W. J.
name: Blank, D. H. A.
name: Hwang, H. Y.
name: Noh, T. W.
name: Egami, T.
name: Lee, H. N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have found that there is more than one type of conducting carriers generated in LaAlO3/SrTiO3 heterostructures by comparing the sheet carrier density and mobility from optical transmission spectroscopy with those from dc-transport measurements. When multiple types of carriers exist, optical characterization dominantly reflects the contribution from the high-density carriers whereas dc-transport measurements may exaggerate the contribution of the high-mobility carriers even though they are present at low-density. Since the low-temperature mobilities determined by dc-transport in the LaAlO3/SrTiO3 heterostructures are much higher than those extracted by optical method, we attribute the origin of high-mobility transport to the low-density conducting carriers.
description: 3 figures, supplemental material
Fetonte e la sua misteriosa luce blu
Creators: Giuseppina Pulcrano
Publisher: name: Media Inaf
Year: 2018

Le osservazioni dell’asteroide 3200 Phaethon ottenute da un gruppo internazionale di astronomi  con il telescopio Pirka dell’Osservatorio Nayoro di Hokkaido, in Giappone, mostrano che la superficie dell’asteroide riflette meno luce del previsto: questo potrebbe spiegare la polarizzazione da record
An investigation of some technical methods of stock market forecasting
Creators: name: Phelps, John Livingstone
Publisher: name: University of British Columbia
Year: 2012

description: The object of this dissertation is to investigate some of the more recent concepts and methods of technical forecasting of market trends, business cycles and individual security cycles and to indicate the sources from which such data may be obtained. This investigation indicates that technical forecasting is a useful technique for the security analyst which may be used to advantage. No attempt has been made to prove that technical methods of forecasting are infallible or that these methods may be considered superior to individual security analysis but rather that they should be used by security analysts in conjunction with other techniques. The problem is divided into three phases. The first phase, presented in Chapters I to IX, discusses technical market trend forecasting and the results are compared with actual market performances for 1959. The second phase, Chapters X and XI, considers the shortcomings of the earnings and valuation approaches of security analysis and contains a discussion of business cycle forecasting. The third phase, Chapters XII and XIII, illustrates a modified technical method of evaluating common stocks.
title: ÐÐµÑ Ð°Ð½Ð¸ÐºÐ° Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸ Ð¸ Ð³Ð°Ð·Ð° (Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÐºÐ°)
title: Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð´Ð»Ñ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð¸ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ ÐºÑÑÑÐ¾Ð²ÑÑ Ð¸ ÑÐ°ÑÑÐµÑÐ½Ð¾-Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ°Ð±Ð¾Ñ
titleType: Subtitle
Creators: name: ÐÐ¾Ð¶ÐµÐ²Ð½Ð¸ÐºÐ¾Ð²Ð°, ÐÐ»ÐµÐ½Ð°
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2006
Subjects: ÐÐ¸Ð´ÑÐ¾Ð¼ÐµÑ Ð°Ð½Ð¸ÐºÐ°
ÐÐ°Ð·Ð¾Ð²Ð°Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ°
ÐÐ¸Ð´ÑÐ°Ð²Ð»Ð¸ÐºÐ°

description: Ð ÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«ÐÐµÑÐ°Ð½Ð¸ÐºÐ° Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸ Ð¸ Ð³Ð°Ð·Ð° (Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÐºÐ°)Â» Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¹ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸: 140200 Â«Ð­Ð»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ°Â», 270100 Â«Ð¡ÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾Â», 280400 Â«ÐÑÐ¸ÑÐ¾Ð´Ð¾Ð¾Ð±ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾Â», 280200 Â«ÐÐ°ÑÐ¸ÑÐ° Ð¾ÐºÑÑÐ¶Ð°ÑÑÐµÐ¹ ÑÑÐµÐ´ÑÂ», 656500 Â«ÐÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÑ Ð¶Ð¸Ð·Ð½ÐµÐ´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸Â», 150200 Â«ÐÐ°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½ÑÐµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¸ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸ÐµÂ», 150900 Â«Ð¢ÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ, Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Â», 151000 Â«ÐÐ¾Ð½ÑÑÑÑÐºÑÐ¾ÑÑÐºÐ¾-ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Â», 140500 Â«Ð­Ð½ÐµÑÐ³Ð¾Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸ÐµÂ». ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð¾Ð±ÑÐ¸Ðµ Ð¿ÑÐ°Ð²Ð¸Ð»Ð° Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐ½Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð·Ð°Ð¿Ð¸ÑÐ¾Ðº Ð¸ Ð¸Ñ ÑÑÑÑÐºÑÑÑÐ½ÑÑ ÑÐ°ÑÑÐµÐ¹. Ð¡Ð¾Ð´ÐµÑÐ¶Ð°ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ Ð¾ÑÐ´ÐµÐ»ÑÐ½ÑÑ Ð·Ð°Ð´Ð°Ñ, Ð²ÑÐ·ÑÐ²Ð°ÑÑÐ¸Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÑÑÐ¸Ðµ ÑÑÑÐ´Ð½Ð¾ÑÑÐ¸ Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð². ÐÐ°Ð½Ñ Ð¿ÑÐ¸Ð¼ÐµÑÑ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ ÑÐ¸ÑÑÐ½ÐºÐ¾Ð² Ð¸ ÑÐ°Ð±Ð»Ð¸Ñ Ð¿ÑÐ¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ð¸ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ°ÑÑÐµÑÐ¾Ð² Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸ÑÐ¼Ð¸ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ¾Ð². ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ñ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð²ÑÐ¿Ð¾Ð»Ð½ÑÑÑÐ¸Ñ ÐºÑÑÑÐ¾Ð²ÑÐµ Ð¸ ÑÐ°ÑÑÐµÑÐ½Ð¾-Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ðµ Â«ÐÐµÑÐ°Ð½Ð¸ÐºÐ° Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸ Ð¸ Ð³Ð°Ð·Ð° (Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÐºÐ°)Â».
description: ÐÐµÑÐ°ÑÐ°ÐµÑÑÑ Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ´Ð°ÐºÑÐ¸Ð¾Ð½Ð½Ð¾-Ð¸Ð·Ð´Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐ¾Ð²ÐµÑÐ° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ°.
Luce dopo la lunga attesa
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2018

Le osservazioni nel visibile dell’oggetto risultante dalla fusione delle due stelle di neutroni che ha originato Gw 170817 sono consistenti con un modello di getto strutturato, nel quale la materia viaggia a velocità prossime a quella della luce. Fra le autrici dello studio, pubblicato su Nature Astronomy, Eliana Palazzi ed Elena Pian dell’Inaf di Bologna
MPEC 2023-K111 : 2023 KY1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 KY1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Interaction design in everyday computer-based systems : challenges, design strategies and solutions
Creators: name: Grammenos, Dimitrios-Stavros
Publisher: name: University of Kent
Year: 2023

description: This thesis aims to contribute towards addressing the challenges that interaction designers of “emerging everyday computer-based systems” (ECS) are facing. ECS can be characterised as the computer technologies and applications which are expected to become mainstream and have high impact on the lives and everyday activities of the citizens of the Information Society in the coming years. A key aspect of ECS is diversity in the underlying technology and (hardware and software) user interfaces, as well as in the target user groups, contexts of use and user goals. More specifically, this thesis aims to create new knowledge and provide concrete design approaches and solutions related to four interaction domains, namely: (i) Virtual Environments (VEs); (ii) Accessible Computer Games; (iii) Software Agents; and (iv) Interactive Applications for Young Children. In this context, the main outcomes of this thesis are: • A novel intuitive interaction metaphor for Virtual Environments and the process followed towards defining and refining it. • A fully-functional universally accessible chess game which is publicly available on the Web and was nominated for the final jury decision of the 2004 European Design for All Awards set by the European Commission. • A generic model for simulating an artificial sensory system intended to be used for the creation of intelligent software agents. • A design process and its results for the creation of a multi-perspective collaborative application for young children. Beyond the specific contribution in each interaction domain, some more general conclusions are derived from the overall research work conducted, regarding interaction design for ECS. For each design challenge guidance is provided on how it can be faced, based on the experience gained from the research and development work conducted for the completion of this thesis.
Critical exponents of the semimetal-insulator transition in graphene: A Monte Carlo study
Creators: name: Drut, Joaquín E.
name: Lähde, Timo A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The low-energy theory of graphene exhibits spontaneous chiral symmetry breaking due to pairing of quasiparticles and holes, corresponding to a semimetal-insulator transition at strong Coulomb coupling. We report a Lattice Monte Carlo study of the critical exponents of this transition as a function of the number of Dirac flavors $N_f^{}$, finding $δ= 1.25 \pm 0.05$ for $N_f^{} = 0$, $δ= 2.26 \pm 0.06$ for $N_f^{} = 2$ and $δ= 2.62 \pm 0.11$ for $N_f^{} = 4$, with $γ\simeq 1$ throughout. We compare our results with recent analytical work for graphene and closely related systems, and discuss scenarios for the fate of the chiral transition at finite temperature and carrier density, an issue of relevance for upcoming experiments with suspended graphene samples.
description: 5 pages, 5 figures. Published version
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¸ Ð¾ÑÐ½Ð°ÑÑÐºÐ¸ Ð³Ð¾ÑÑÑÐµÐ¹ Ð´ÐµÑÐ°Ð»Ð¸ Â«ÐºÐ¾Ð»Ð¿Ð°ÑÐ¾ÐºÂ» Ð¸Ð· ÑÑÐ°Ð»Ð¸ 18Ð¥ÐÐ¢ Ð¸ Ñ Ð¾Ð»Ð¾Ð´Ð½Ð¾Ð¹ Ð¾Ð±ÑÑÐ¼Ð½Ð¾Ð¹ ÑÑÐ°Ð¼Ð¿Ð¾Ð²ÐºÐ¸ Ð´Ð»Ñ ÐºÐ¾Ð½ÐºÑÐµÑÐ½Ð¾Ð¹ Ð´ÐµÑÐ°Ð»Ð¸ Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°ÑÐ°Ð±Ð°Ð½Ð¾Ð², 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: 2016
Subjects: Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ
ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ°
Ð¿Ð¾ÐºÐ¾Ð²ÐºÐ°
ÑÑÐ°Ð¼Ð¿Ð¾Ð²ÐºÐ°
Ð²ÑÐ´Ð°Ð²Ð»Ð¸Ð²Ð°Ð½Ð¸Ðµ

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ - ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð´ÐµÑÐ°Ð»ÐµÐ¹ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ - Ð¿Ð¾Ð»ÑÑÐ¸ÑÑ Ð½Ð°Ð²ÑÐºÐ¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð´ÐµÑÐ°Ð»ÐµÐ¹ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸ Ð³Ð¾ÑÑÑÐµÐ¹ Ð¾Ð±ÑÐµÐ¼Ð½Ð¾Ð¹ ÑÑÐ°Ð¼Ð¿Ð¾Ð²ÐºÐ¾Ð¹ Ð¸ ÑÐ¾Ð»Ð¾Ð´Ð½Ð¾Ð¹ Ð¾Ð±ÑÑÐ¼Ð½Ð¾Ð¹ ÑÑÐ°Ð¼Ð¿Ð¾Ð²ÐºÐ¾Ð¹. ÐÐ°ÑÑÐ¸ÑÑÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°ÑÑ ÑÑÐ¸ Ð¿ÑÐ¾ÑÐµÑÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð­ÐÐ.
Spectroscopic Properties Of Radio Loud And Radio Quiet Quasars
Creators: name: Chakraborty, Avinanda
Publisher: name: Zenodo
Year: 2019

description: Surveys have shown radio-loud (RL) quasars constitute $10 \%$-$15 \%$ of the total quasar population and rest are radio-quiet (RQ). However, it is unknown if this radio-loud fraction (RLF) (RL quasars/Total quasars) remains consistent among different parameter spaces. This study shows that RLF increases for increasing full width half maximum (FWHM) velocity of H$\beta$ broad emission line. Our data has been obtained from \cite{shen} catalogue. Our sample consists of quasars with magnitude less than 19.1 and limited upto redshift 0.75. We are getting RLF for FWHM of H$\beta$ broad emission line greater than 15000km/s is 0.577. To analyse the reason, in this preliminary study we compare various properties like bolometric and 5100\.{A} luminosities, BH mass and accretion rate of RL and RQ quasars sample which have FWHM of H$\beta$ broad emission line greater than 15000km/s (High Broad Line or HBL) with which have FWHM of H$\beta$ emission line less than 2500km/s (Low Broad Line or LBL) and from the distributions we can conclude for all the properties in HBL, RQ and RL are peaking separately whereas for LBL the peaks are almost indistinguishable. Then we compare our result with other literature and by crossmatching our sample with VLBI we have shown that some objects from our sample are not following the graph of logR vs FWHM plot from Wills and Browne 1986 where R is the ratio of radio core flux density with the extended radio lobe flux density. We are also getting 5 objects which are behaving exceptionally from logRv vs FWHM plot.Where logRv is the ratio of radio and optical luminosity at rest frame. 
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¾Ñ ÑÐ°Ð½Ñ ÑÑÑÐ´Ð° Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ Ð°Ð²ÑÐ¾ÑÐ°Ð»Ð¾Ð½Ð° "ÐÐ°Ð½Ð°Ð²ÑÐ¾ - ÐÐµÑÑÐµÐ´ÐµÑ-ÐÐµÐ½Ñ"
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°ÑÐ¸Ð»ÑÑÐµÐ½ÐºÐ¾, ÐÐ°ÑÐ¸Ð½Ð°
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°Ð²ÑÐ¾ÑÐ°Ð»Ð¾Ð½Ñ
Ð¾Ñ ÑÐ°Ð½Ð° ÑÑÑÐ´Ð°
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description: Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ - Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°ÑÑ Ð¸ ÑÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°ÑÑ ÑÑÑÐµÑÑÐ²ÑÑÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÑÐ°Ð½Ñ ÑÑÑÐ´Ð° Ð² Ð°Ð²ÑÐ¾ÑÐ°Ð»Ð¾Ð½Ðµ. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÑÐµÑÑÐ²ÑÑÑÐµÐ¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÑÐ°Ð½Ñ ÑÑÑÐ´Ð° Ð² Ð°Ð²ÑÐ¾ÑÐ°Ð»Ð¾Ð½Ðµ, Ð²Ð½ÐµÐ´ÑÐµÐ½Ð° ÑÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð½Ð°Ñ, ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¾ÑÑÐ°Ð½Ñ ÑÑÑÐ´Ð° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ° ILO-OSH 2001. Ð¡ÑÐµÐ¿ÐµÐ½Ñ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ - Ð´Ð°Ð½Ð½Ð°Ñ Ð¡Ð£ÐÐ¢ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð° Ð² Ð¾Ð´Ð½Ð¾Ð¼ Ð¸Ð· ÑÐ°Ð»Ð¾Ð½Ð¾Ð² ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Â«ÐÐ°Ð½Ð°Ð²ÑÐ¾-Mercedes BenzÂ». ÐÐ±Ð»Ð°ÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ - Ð°Ð²ÑÐ¾ÑÐ°Ð»Ð¾Ð½Ñ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÑÐµÑÑÐºÐ¸Ðµ.
Batteri selezionati per arrivare nello spazio
Creators: Sara Venturi
Publisher: name: Media Inaf
Year: 2018

I rigidi protocolli d’accesso ai laboratori per strumenti spaziali, adottati per evitare la contaminazione di altri pianeti, hanno portato alla selezione di ceppi di batteri ultra-resistenti. Uno studio condotto da George Fox ha ora individuato dieci geni caratteristici di uno di questi ceppi
Dawn vola basso: a 35 km da Cerere
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2018

I ricercatori hanno di nuovo posto l’attenzione sulla zona più brillante del pianeta nano Cerere, situata all’interno del cratere Occator, che presenta la più elevata concentrazione di carbonati mai registrata in ambienti al di fuori di quello terrestre. I dati provengono dallo strumento Vir (Visual and Infrared Spectrometer). I commenti di Maria Cristina De Sanctis (Inaf-Iaps di Roma) ed Eleonora Ammanito (Asi)
Electronic and transport properties of rectangular graphene macromolecules and zigzag carbon nanotubes of finite length
Creators: name: Nikolaev, A. V.
name: Bibikov, A. V.
name: Avdeenkov, A. V.
name: Bodrenko, I. V.
name: Tkalya, E. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study one dimensional (1D) carbon ribbons with the armchair edges and the zigzag carbon nanotubes and their counterparts with finite length (0D) in the framework of the Hückel model. We prove that a 1D carbon ribbon is metallic if its width (the number of carbon rings) is equal to $2+3n$. We show that the dispersion law (electron band energy) of a 1D metallic ribbon or a 1D metallic carbon nanotube has a universal {\it sin-}like dependence at the Fermi energy which is independent of its width. We find that in case of metallic graphene ribbons of finite length (rectangular graphene macromolecules) or nanotubes of finite length the discrete energy spectrum in the vicinity of $\varepsilon=0$ (Fermi energy) can be obtained exactly by selecting levels from the same dispersion law. In case of a semiconducting graphene macromolecule or a semiconducting nanotube of finite length the positions of energy levels around the energy gap can be approximated with a good accuracy. The electron spectrum of 0D carbon structures often include additional states at energy $\varepsilon=0$, which are localized on zigzag edges and do not contribute to the volume conductivity.
description: 6 pages, 5 figures
F_L proton structure function from the unified DGLAP/BFKL approach
Creators: name: Golec-Biernat, Krzysztof
name: Stasto, Anna M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the longitudinal proton structure function F_L from the k_T factorization scheme, using the unified DGLAP/BFKL resummation approach at small x for the unintegrated gluon density. The differences between the k_T factorization, collinear factorization and dipole approaches are analyzed and discussed. The comparisons with the HERA data are made and predictions for the proposed Large Hadron-Electron Collider are also provided.
description: 16 pages, 9 figures, RevTeX
Dependence of the Star Formation Efficiency on the Parameters of Molecular Cloud Formation Simulations
Creators: name: Rosas-Guevara, Yetli
name: Vazquez-Semadeni, Enrique
name: Gomez, Gilberto C.
name: Jappsen, A. -Katharina
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the response of the star formation efficiency (SFE) to the main parameters of simulations of molecular cloud formation by the collision of warm diffuse medium (WNM) cylindrical streams, neglecting stellar feedback and magnetic fields. The parameters we vary are the Mach number of the inflow velocity of the streams, Msinf, the rms Mach number of the initial background turbulence in the WNM, and the total mass contained in the colliding gas streams, Minf. Because the SFE is a function of time, we define two estimators for it, the "absolute" SFE, measured at t = 25 Myr into the simulation's evolution (sfeabs), and the "relative" SFE, measured 5 Myr after the onset of star formation in each simulation (sferel). The latter is close to the "star formation rate per free-fall time" for gas at n = 100 cm^-3. We find that both estimators decrease with increasing Minf, although by no more than a factor of 2 as Msinf increases from 1.25 to 3.5. Increasing levels of background turbulence similarly reduce the SFE, because the turbulence disrupts the coherence of the colliding streams, fragmenting the cloud, and producing small-scale clumps scattered through the numerical box, which have low SFEs. Finally, the SFE is very sensitive to the mass of the inflows, with sferel decreasing from ~0.4 to ~0.04 as the the virial parameter in the colliding streams increases from ~0.15 to ~1.5. This trend is in partial agreement with the prediction by Krumholz & McKee (2005), since the latter lies within the same range as the observed efficiencies, but with a significantly shallower slope. We conclude that the observed variability of the SFE is a highly sensitive function of the parameters of the cloud formation process, and may be the cause of significant scatter in observational determinations.
description: 19 pages, submitted to MNRAS
Le origini segrete di asteroidi e meteoriti
Creators: Matteo Boni
Publisher: name: Media Inaf
Year: 2018

Secondo uno studio uscito oggi su Nature Astronomy, la maggior parte di 200mila asteroidi presenti nella regione più interna della fascia principale appartengono alle famiglie degli antichi corpi minori Flora, Vesta, Nysa, Polana ed Eulalia
String Theory and Water Waves
Creators: name: Iyer, Ramakrishnan
name: Johnson, Clifford V.
name: Pennington, Jeffrey S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We uncover a remarkable role that an infinite hierarchy of non-linear differential equations plays in organizing and connecting certain {hat c}<1 string theories non-perturbatively. We are able to embed the type 0A and 0B (A,A) minimal string theories into this single framework. The string theories arise as special limits of a rich system of equations underpinned by an integrable system known as the dispersive water wave hierarchy. We observe that there are several other string-like limits of the system, and conjecture that some of them are type IIA and IIB (A,D) minimal string backgrounds. We explain how these and several string-like special points arise and are connected. In some cases, the framework endows the theories with a non-perturbative definition for the first time. Notably, we discover that the Painleve IV equation plays a key role in organizing the string theory physics, joining its siblings, Painleve I and II, whose roles have previously been identified in this minimal string context.
description: 49 pages, 4 figures
title: ÐÐ¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½Ð¾-Ð¿ÑÐ°Ð²Ð¾Ð²Ð¾Ðµ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½ÑÑ ÑÐµÑÐµÐ¹
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: Ð¡ÐºÑÐ»ÐºÐ¸Ð½, Ð¡ÐµÑÐ³ÐµÐ¹
name: ÐÐ½Ð¸ÐºÐ¸Ð½Ð°, ÐÑÐ¸Ð½Ð°
name: Ð¢ÑÐµÑÑÐ²Ð°, ÐÐ¸Ð»Ð°Ð½Ð°
Publisher: name: ÐÐÐ "Ð¡ÑÑÐ°ÑÐ°"
Year: 2021
Subjects: Ð¡ÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾
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title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¼Ð¾Ð½Ð¸ÑÐ¾ÑÐ¸Ð½Ð³Ð° ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ Ð½ÐµÐ¿ÑÐµÑÑÐ²Ð½Ð¾Ð¹ Ð¸Ð½ÑÐµÐ³ÑÐ°ÑÐ¸Ð¸
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Ð³Ð½Ð°ÑÐ¸Ðº, ÐÐ»ÐµÐ½Ð°
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: ITâÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
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SPRING
JAVA

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Sequential category aggregation and partitioning approaches for multi-way contingency tables based on survey and census data
Creators: name: Jackson, L. Fraser
name: Gray, Alistair G.
name: Fienberg, Stephen E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Large contingency tables arise in many contexts but especially in the collection of survey and census data by government statistical agencies. Because the vast majority of the variables in this context have a large number of categories, agencies and users need a systematic way of constructing tables which are summaries of such contingency tables. We propose such an approach in this paper by finding members of a class of restricted log-linear models which maximize the likelihood of the data and use this to find a parsimonious means of representing the table. In contrast with more standard approaches for model search in hierarchical log-linear models (HLLM), our procedure systematically reduces the number of categories of the variables. Through a series of examples, we illustrate the extent to which it can preserve the interaction structure found with HLLMs and be used as a data simplification procedure prior to HLL modeling. A feature of the procedure is that it can easily be applied to many tables with millions of cells, providing a new way of summarizing large data sets in many disciplines. The focus is on information and description rather than statistical testing. The procedure may treat each variable in the table in different ways, preserving full detail, treating it as fully nominal, or preserving ordinality.
description: Published in at http://dx.doi.org/10.1214/08-AOAS175 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)