cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Se tutti i quasar si somigliassero, nello spettro
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2023

Un nuovo studio mette in discussione uno dei pilastri fondanti del modello standard che spiega la fisica dei quasar: la relazione fra luminosità ed energia emessa nell’ultravioletto. Secondo i nuovi risultati, semplicemente questa relazione non esisterebbe e sarebbe un mero effetto osservativo. Con un commento della ricercatrice dell’Inaf Angela Bongiorno, esperta nello studio di questi oggetti
Flavours in global Klebanov-Witten background
Creators: name: Arnaudov, Dimo
name: Filev, Veselin
name: Rashkov, Radoslav
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We probe flavour branes in the Klebanov-Witten background in global coordinates. We show that supersymmetric probes correspond to massless flavours and analyse their spectrum of fluctuations. Our studies suggest that the mesons are dissociated by the Casimir energy. The spectrum is equidistant, with a ground state given by the conformal dimension of the operator dual to the fluctuations. We show that the equidistant structure of the spectrum arises from the addition of the angular momenta of the fundamental fields composing the meson operators.
description: 24 pages
Osservati in real time gli eccitoni di Hubbard
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2023

Un gruppo di ricercatori del Caltech riferisce di aver rilevato eccitoni che non sono legati dalle forze di Coulomb ma piuttosto dal magnetismo: gli eccitoni di Hubbard. Si tratta del primo esperimento per rilevare come si formano in tempo reale questi eccitoni. I risultati potrebbero avere importanti applicazioni nello sviluppo di nuove tecnologie legate agli eccitoni, la cosiddetta eccitonica
The Polynomial Form of the Scattering Equations
Creators: name: Dolan, Louise
name: Goddard, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The scattering equations, recently proposed by Cachazo, He and Yuan as providing a kinematic basis for describing tree amplitudes for massless particles in arbitrary space-time dimension (including scalars, gauge bosons and gravitons), are reformulated in polynomial form. The scattering equations for $N$ particles are shown to be equivalent to a Moebius invariant system of $N-3$ equations, $\tilde h_m=0$, $2 \leq m \leq N-2$, in $N$ variables, where $\tilde h_m$ is a homogeneous polynomial of degree m, with the exceptional property of being linear in each variable taken separately. Fixing the Moebius invariance appropriately, yields polynomial equations $h_m=0$, $1 \leq m \leq N-3$, in $N-3$ variables, where $h_m$ has degree $m$. The linearity of the equations in the individual variables facilitates computation, e.g the elimination of variables to obtain single variable equations determining the solutions. Expressions are given for the tree amplitudes in terms of the $\tilde h_m$ and $h_m$. The extension to the massive case for scalar particles is described and the special case of four dimensional space-time is discussed.
description: 24 pages
Safer Traveling during COVID-19
Creators: name: Collaboratory For Health Justice
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: This fact sheet shares what you should know before you travel during this COVID-19 pandemic, including what to bring with you, how to create a travel plan, and protect yourself and others on your way.
Moving to a New Household during COVID-19
Creators: name: Collaboratory For Health Justice
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: Going home for the holidays and maybe longer?Help reduce the risks related to introducing a new person intoa household. This fact sheet provides useful guidelines to help you prepare before your travel, know what to do upon arrival, and how to keep others safe during the first month of your stay.
Obstructions for subgroups of Thompson's group $V$
Creators: name: Burillo, José
name: Cleary, Sean
name: Röver, Claas E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Thompson's group $V$ has a rich variety of subgroups, containing all finite groups, all finitely generated free groups and all finitely generated abelian groups, the finitary permutation group of a countable set, as well as many wreath products and other families of groups. Here, we describe some obstructions for a given group to be a subgroup of $V$.
Antica mappa della Luna alla mostra su Calvino
Creators: Agnese Mandrino
Publisher: name: Media Inaf
Year: 2023

Realizzata dall’astronomo Giovanni Domenico Cassini, la “Carta della Luna” sarà esposta alla mostra “Favoloso Calvino” – da venerdì 13 ottobre a Roma, alle Scuderie del Quirinale, – a illustrare la relazione tra Italo Calvino e l’astronomia. La sua fama, al di là del valore scientifico, è legata anche a un curioso dettaglio, grazie al quale qualche studioso l’ha definita “una dichiarazione d’amore”
Mondo o Mond: chi turba la fascia di Kuiper?
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2023

È nata come teoria alternativa alla materia oscura, la Mond. Ora una coppia di astrofisici statunitensi  – Katherine Brown e Harsh Mathur – ha provato a usarla come teoria alternativa a un “mondo” altrettanto introvabile, anch'esso ipotizzato a partire da effetti gravitazionali: il fantomatico “Planet Nine”
Stellar Rotation of T Tauri stars in the Orion Star-Forming Complex
Creators: name: Serna, Javier
name: Hernández, Jesús
name: Kounkel, Marina
name: Manzo-Martínez, Ezequiel
name: Roman-Lopes, Alexandre
name: Román-Zúñiga, Carlos G.
name: Batista, Maria Gracia
name: Pinzón, Giovanni
name: Calvet, Nuria
name: Briceño, Cesar
name: Tapia, Mauricio
name: Suárez, Genaro
name: Peña Ramírez, Karla
name: Stassun, Keivan G.
name: Covey, Kevin
name: Vargas-González, J.
name: Fernández-Trincado, José G.
Publisher: name: Zenodo
Year: 2022
Subjects: T Tauri Stars
Stellar Rotation
Stellar Evolution
TESS light curves

description: We present a large-scale study of stellar rotation for T Tauri stars in the Orion star-forming complex. We use the projected rotational velocity (v sin(i)) estimations reported by the APOGEE-2 collaboration as well as individual masses and ages derived from the position of the stars in the HR diagram, considering Gaia-EDR3 parallaxes and photometry plus diverse evolutionary models. We find an empirical trend for vsin(i) decreasing with age for low-mass stars (0.4Msun < M* < 1.2Msun). Our results support the existence of a mechanism linking vsin(i) to the presence of accreting protoplanetary disks, responsible for regulating stellar rotation on timescales of about 6 Myr, which is the timescale in which most of the T Tauri stars lose their inner disk. Our results provide significant constraints to models of rotation in the early phases of the evolution of young stars and their disks.
description: {"references": ["Brice\u00f1o, C. et al. (2019), AJ, 157, 85", "Hern\u00e1ndez, J. et al. (2014), ApJ, 794, 36", "Gallet, F., & Bouvier, J. (2015), A&A, 577, A98", "Hernandez, J. et al. (2007), ApJ, 662, 1067", "Carpenter, J. M. et al. (2006), ApJ, 651, L49"]}
Euclid: risolto il problema al sensore di guida fine
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2023

Grazie a un aggiornamento al software, la missione spaziale Euclid ha risolto i problemi di navigazione legati al puntamento del telescopio, mentre in parallelo sono stati riprogettati i prossimi sei anni di osservazione per evitare gli effetti indesiderati della luce solare diffusa. Termina così il commissioning del satellite, che sarà sottoposto nelle prossime settimane al test finale prima di iniziare la sua campagna scientifica
Mortality and acute somatic events following electroconvulsive therapy in patients with pre-existing somatic comorbidity – A register-based nationwide Danish cohort study
Creators: name: Osler, Merete
name: Rozing, Maarten P.
name: Jorgensen, Martin B.
name: Jorgensen, Anders
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: To examine whether electroconvulsive therapy (ECT) is associated with risk of mortality and acute somatic events in patients with or without somatic comorbidity. A total of 174,495 patients with an affective disorder, of whom 41% had somatic comorbidity, were followed from 2005 through 2018 for ECT, mortality, and acute somatic outcomes using Danish registers. The association of ECT with outcomes was estimated using Cox proportional hazard regression. Patients, of whom 6943 (4.0%) had ECT, were followed for a median of 6.7 years. Compared to non-ECT treated patients, ECT was associated with a lower risk of death from natural causes, which was independent of somatic comorbidity. ECT was not associated with the risk of acute somatic events neither in patients with somatic comorbidity nor in patients without somatic comorbidity, except for cardiac events within 0–30 days of follow-up after the first ECT, for which there was a 3.7-fold higher risk in patients with no somatic comorbidity. This analysis, however, was based on few events. In modern clinical practice, in patients with affective disorders and somatic comorbidity, ECT is not associated with a higher risk of death from natural causes or acute somatic events.
Smaltimento spaziale, 150mila dollari di sanzione
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2023

Per la prima volta nella storia un’azienda è stata multata per non essere riuscita a spostare un suo satellite in disuso nell’orbita “di smaltimento”, un’orbita prevista dagli accordi per minimizzare il rischio d’impatto con altri satelliti. A comminare la sanzione e a darne l’annuncio è stata la Federal Communications Commission statunitense
RATAN-600 Observations of Small Scale Structures with High Spectral Resolution
Creators: name: Bogod, V. M.
name: Alissandrakis, C. E.
name: Kaltman, T. I.
name: Tokhchukova, S. Kh.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present observations of quiet-sun small-scale structures (SSS) in the microwave range with the {\it Radio Astronomical Telescope of the Academy of Sciences 600} (RATAN-600) spectral-polarization facility in a wide range of frequencies. SSS are regularly recorded in routine observations of the large reflector-type radio telescope and represent manifestations in the radio range of various structures of the quiet-sun: supergranulation network, bright points, plage patches and so on. A comparison with with images from the {\it Solar Dynamics Observatory} (SDO) showed that the microwave emission comes from a region extending from the chromosphere to the low transition region. We measured the properties of the SSS as well as the degree of circular polarization averaged over the beam of the radio telescope and from this we estimated the magnetic field at the formation level of the radiation.
description: Solar Physics, in press
title: Übersetzung in Russisch: COPD. Was passiert bei COPD?
Creators: name: Ärztliches Zentrum Für Qualität In Der Medizin (ÄZQ)
Publisher: name: Bundesärztekammer (BÄK); Kassenärztliche Bundesvereinigung (KBV); Ärztliches Zentrum für Qualität in der Medizin (ÄZQ)
Year: 2011
Subjects: subject: 610 Medical sciences; Medicine

description: Kurzinformation für Patienten
Perseverance insegue l’ombra del diavolo
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2023

Il rover Nasa ha immortalato il piccolo tornado durante una ricognizione delle condizioni atmosferiche sul cratere Jezero. L’altezza complessiva, estrapolata dalla lunghezza dell’ombra proiettata sul terreno marziano, dovrebbe essere di circa due chilometri
Alla ricerca delle stelle nascoste di Euclid
Creators: Redazione Esa
Publisher: name: Media Inaf
Year: 2023

L'universo non svela facilmente i suoi segreti. Euclid è il nostro detective cosmico, il cui obiettivo è quello di comprendere la struttura e la composizione del cosmo. Ma prima di iniziare l’indagine per cui è stato progettato, gli ingegneri e gli scienziati di Euclid hanno dovuto indossare i loro cappelli da Sherlock Holmes per risolvere tre spinose questioni emerse durante la messa in servizio degli strumenti. Vediamo come sono riusciti a risolverle
Mortality and acute somatic events following electroconvulsive therapy in patients with preexisting somatic comorbidity – a register-based nationwide Danish cohort study
Creators: name: Osler, Merete
name: Rozing, Maarten P.
name: Jorgensen, Martin B.
name: Jorgensen, Anders
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: To examine whether electroconvulsive therapy (ECT) is associated with risk of mortality and acute somatic events in patients with or without somatic comorbidity. 174,495 patients with an affective disorder, of whom 41% had somatic comorbidity, were followed from 2005 through 2018 for ECT, mortality, and acute somatic outcomes using Danish registers. The association of ECT with outcomes was estimated using Cox proportional hazard regression. Patients, of whom 6,943 (4.0%) had ECT, were followed for a median of 6.7 years. Compared to non-ECT treated patients, ECT was associated with a lower risk of death from natural causes, which was independent of somatic comorbidity. ECT was not associated with the risk of acute somatic events neither in patients with nor without somatic comorbidity, except for cardiac events within 0-30 days of follow-up after the first ECT, for which there was a 3.7-fold higher risk in patients with no somatic comorbidity. This analysis, however, was based on few events. In modern clinical practice, in patients with affective disorders and somatic comorbidity, ECT is not associated with a higher risk of death from natural causes or acute somatic events.
Inclusive education experiences, opinions, and perspectives among high school educators
Creators: Smith, Kailee Celine
Publisher: name: University of Alberta Library
Year: 2022

This qualitative action research project examined common experiences, opinions, and perspectives of high school educators regarding the inclusive education of students with exceptionalities. Participants included four high school teachers who are teaching introductory high school courses (10 level) in the 2021-2022 school year from the Science, Social Studies, and English departments. Data were collected through one-on-one interviews and analyzed through an inductive coding approach to allow the data and narratives to unfold and speak for themselves. Findings portrayed a significant array of experiences with teaching and programming for students with exceptionalities. Participants shared positive beliefs and benefits of why students with exceptionalities should be included through inclusive programming. Barriers to inclusion were also identified. Several strategies to support both students and educators/teachers with inclusion for students with exceptionalities were discussed by participants.
BlueWalker 3, uno fra gli “astri” più luminosi in cielo
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2023

Ha una magnitudine apparente che può raggiungere un valore di 0.4 nel visibile e non è né una stella né un pianeta. È un satellite per le telecomunicazioni con un’enorme antenna di 8x8 metri circa. Molto più brillante e grande degli Starlink, diventa periodicamente centinaia di volte più luminoso di quanto raccomandato dall’Unione astronomica internazionale
Spin dependent quantum interference in non-local graphene spin valves
Creators: name: Guimaraes, M. H. D.
name: Zomer, P. J.
name: Vera-Marun, I. J.
name: van Wees, B. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin dependent electron transport measurements on graphene are of high importance to explore possible spintronic applications. Up to date all spin transport experiments on graphene were done in a semi-classical regime, disregarding quantum transport properties such as phase coherence and interference. Here we show that in a quantum coherent graphene nanostructure the non-local voltage is strongly modulated. Using non-local measurements, we separate the signal in spin dependent and spin independent contributions. We show that the spin dependent contribution is about two orders of magnitude larger than the spin independent one, when corrected for the finite polarization of the electrodes. The non-local spin signal is not only strongly modulated but also changes polarity as a function of the applied gate voltage. By locally tuning the carrier density in the constriction we show that the constriction plays a major role in this effect and indicates that it can act as a spin filter device. Our results show the potential of quantum coherent graphene nanostructures for the use in future spintronic devices.
Per il Nobel per la fisica 2023 basta un attosecondo
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2023

Il premio Nobel per la fisica 2023 è stato assegnato, in ugual misura, a Pierre Agostini, Ferenc Krausz e – quinta donna nella storia a riceverlo – Anne L’Huillier per essere riusciti a generare impulsi di luce ad attosecondi, i segnali più brevi mai generati. Così brevi da consentire di studiare la dinamica degli elettroni in atomi e molecole
title: Übersetzung in Französisch: COPD. Was passiert bei COPD?
Creators: name: Ärztliches Zentrum Für Qualität In Der Medizin (ÄZQ)
Publisher: name: Bundesärztekammer (BÄK); Kassenärztliche Bundesvereinigung (KBV); Ärztliches Zentrum für Qualität in der Medizin (ÄZQ)
Year: 2011
Subjects: subject: 610 Medical sciences; Medicine

description: Kurzinformation für Patienten
title: Zwischen beiden Bächen
title: die über 600jährige Geschichte des Standortes der Reppisch-Werke Dietikon
titleType: Subtitle
Creators: name: Hirzel, Aloys
Publisher: name: Druckerei Markus Hummel & Co.
Year: 1982
Subjects: subject: 338 Produktion
subject: 949 Geschichte anderer Teile Europas
subject: Dietikon
subject: Reppisch
subject: Reppisch-Werke AG
subject: Mühle
subject: Färberei

description: Mit einer Jahreschronik für Dietikon von November 1980 bis Oktober 1981.
description: Inhalt: Das Areal zwischen beiden Bächen ; Die Nebenbetriebe ; Die Geschichte der unteren und oberen Mühle ; Die Geschichte der Rotfarb ; Von der Rotfarb zu den Reppisch-Werken ; Streiflichter aus dem 20. Jahrhundert ; Begriffserläuterungen ; Chronik der Entwicklung auf dem Areal zwischen beiden Bächen.
title: Kentucky Public Schools as Educational Bright Spots (September 2020)
Creators: name: Childress, Michael T.
Publisher: name: Center for Business and Economic Research, University of Kentucky
Year: 2020
Subjects: subject: FOS: Economics and business

description: Understanding the reasons for better‐than‐expected performance across Kentucky's 173 school districts, taking into account student outcomes, backgrounds, and school district characteristics. Building on the previous work with school districts and using school-level data, this paper discusses the estimated expected level of school-level performance using district-level fixed effects. From this broad range of student outcomes, family and community backgrounds, and school characteristics, we identify schools that have performed better than expected—which we refer to as “bright spots.”
Il Premio “Gianni Tofani” 2023 va a Valentina Vacca
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2023

Si conclude oggi, lunedì 2 ottobre, la seconda edizione del Premio intitolato a Gianni Tofani, ingegnere scomparso prematuramente nel 2015, figura di primo piano dell’Osservatorio astrofisico di Arcetri e dell’Inaf. Ad aggiudicarsi i 25mila euro in palio e il soggiorno in Germania per realizzare il suo progetto di radioastronomia è stata Valentina Vacca, ricercatrice dell’Inaf di Cagliari
title: Übersetzung in Englisch: COPD. Was passiert bei COPD?
Creators: name: Ärztliches Zentrum Für Qualität In Der Medizin (ÄZQ)
Publisher: name: Bundesärztekammer (BÄK); Kassenärztliche Bundesvereinigung (KBV); Ärztliches Zentrum für Qualität in der Medizin (ÄZQ)
Year: 2011
Subjects: subject: 610 Medical sciences; Medicine

description: Kurzinformation für Patienten
In-house job portal
Creators: Pathrol, Avinash
Publisher: name: University of Alberta Library
Year: 2022

The goal of this portal is to connect to industries and act as an online recruitment to support students to find the right IT job after/during graduation. This project addresses the gap between the Job Seeker and the Recruiter. This is done by taking into consideration the details provided by both, the Job Seeker and the Recruiter, and, by applying a variety of different filters in order to cater to each and everyone’s individual needs and wishes. The methodology implemented is an effective model for the sole purpose of a web portal creation. The messaging system is quite an important feature which will be implemented in the coming future within the project in order to keep the involved parties informed about their status in the Job Portal, telling them everything such as company to which they have applied, application status, designation, and department. Since, the websites are, nowadays, accessed via a variety of different devices such as desktops, laptops, tablets, mobile devices, etc., using Bootstrap enables easy compatibility with all the above mentioned devices with ease.
Electric network for non-reversible Markov chains
Creators: name: Balázs, Márton
name: Folly, Áron
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60J10 (Primary) 82C41 (Secondary)

description: We give an analogy between non-reversible Markov chains and electric networks much in the flavour of the classical reversible results originating from Kakutani, and later Kemény-Snell-Knapp and Kelly. Non-reversibility is made possible by a voltage multiplier -- a new electronic component. We prove that absorption probabilities, escape probabilities, expected number of jumps over edges and commute times can be computed from electrical properties of the network as in the classical case. The central quantity is still the effective resistance, which we do have in our networks despite the fact that individual parts cannot be replaced by a simple resistor. We rewrite a recent non-reversible result of Gaudillière-Landim about the Dirichlet and Thomson principles into the electrical language. We also give a few tools that can help in reducing and solving the network. The subtlety of our network is, however, that the classical Rayleigh monotonicity is lost.
description: 23 pages and lots of electric components
Galassie a disco nell’universo bambino
Creators: Federica Loiacono
Publisher: name: Media Inaf
Year: 2023

Un cosmo brulicante di galassie a disco, già nella sua infanzia. Utilizzando le immagini del telescopio spaziale James Webb un gruppo di ricercatori guidato da Leonardo Ferreira dell'Università di Victoria, in Canada, ha scoperto che l’universo, già nelle sue prime fasi di vita, abbondava di galassie con una forma simile a quella della Via Lattea, contrariamente a quanto si riteneva in passato. Il risultato su The Astrophysical Journal
A Federica Spoto e Diego Turrini il Premio Farinella
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2023

Consegnato oggi a San Antonio (Texas, Usa) a due ricercatori italiani, è un premio congiunto per studi “sull’inizio e la fine del lungo viaggio delle meteoriti”: a Diego Turrini dell’Inaf di Torino per i suoi lavori sugli impatti primordiali, e a Federica Spoto del Minor Planet Centre (Usa) per l’individuazione rapida e i calcoli delle orbite degli  impattatori imminenti diretti verso la Terra
Hugh Masekela: the long journey 1959-1968
Creators: name: Cueva, Ricardo
Publisher: name: No Publisher Supplied
Year: 2020

description: This thesis chronicles Masekela's transition from African refugee to Grammy nominated artist while also encompassing a musical analysis of his work before and including The Promise of the Future. This thesis will provide brief biographical information of Masekela’s life as well as a sociological analysis to give context to his place in US pop culture. This study discusses Masekela’s upbringing in South Africa and explores his transition into 1960s America. This thesis argues that Masekela faced an authenticity complex when breaking into the US market because he defied the expectations of what US audiences thought Africans to be. Masekela overcame this obstacle with the release of The Americanization of Ooga Booga (1966). A musical analysis and critique of the first three albums with an emphasis on Masekela’s breakthrough compositions will be part of this thesis. This thesis concludes with a brief analysis of the cultural and racial impact of Masekela’s work both in the United States and South Africa.
title: Übersetzung in Arabisch: COPD. Was passiert bei COPD?
Creators: name: Ärztliches Zentrum Für Qualität In Der Medizin (ÄZQ)
Publisher: name: Bundesärztekammer (BÄK); Kassenärztliche Bundesvereinigung (KBV); Ärztliches Zentrum für Qualität in der Medizin (ÄZQ)
Year: 2011
Subjects: subject: 610 Medical sciences; Medicine

description: Kurzinformation für Patienten
Ombre nel Sistema solare
Creators: Fabrizio Villa
Publisher: name: Media Inaf
Year: 2023

Abbiamo appena lasciato alle spalle l’estate astronomica e così pure anche la Via Lattea estiva. Tracce del cielo estivo è ancora possibile vederne appena dopo l'imbrunire, dopo il tramonto del Sole, ma iniziano a dominare le costellazioni tipicamente autunnali. Questo mese è particolare per l’eclissi parziale di Luna e l’eclissi anulare di Sole, quest’ultima però invisibile dall’Italia
Why do nanotubes grow chiral?
Creators: name: Artyukhov, Vasilii I.
name: Penev, Evgeni S.
name: Yakobson, Boris I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Carbon nanotubes (CNT) hold enormous technological promise. It can only be harnessed if one controls in a practical way the CNT chirality, the feature of the tubular carbon topology that governs all the CNT properties---electronic, optical, mechanical. Experiments in catalytic growth over the last decade have repeatedly revealed a puzzling strong preference towards minimally-chiral (near-armchair) CNT, challenging any existing hypotheses and turning chirality control ever more tantalizing yet leaving its understanding elusive. Here we combine the CNT/catalyst interface thermodynamics with the kinetic growth theory to show that the unusual near-armchair peaks emerge from the two antagonistic trends: energetic preference towards achiral CNT/catalyst interfaces vs. faster growth of chiral CNT. This narrow distribution is profoundly related with the peaked behavior of a simple function, x*exp(-x).
Open-ended questions as math homework
Creators: Tannas, Alan Sean
Publisher: name: University of Alberta Library
Year: 2022

This is an action research project which used mixed-methods to address both parental self-efficacy in mathematics and the development of appropriate homework for upper-elementary students. Literature was reviewed in the fields of self-efficacy, ethnomathematics, open-ended questions, and the role of homework in elementary schools. Participants (N=11) were asked to answer four open-ended math questions with their children, and at those times to also communicate social-emotional regulation strategies. Participants’ perceptions regarding homework and their mathematical self-efficacy were investigated using Likert surveys, long form questions, and interviews. Participants found the intervention fun, motivational, relaxed, and practical. Conclusions drawn are that open-ended math questions are likely to improve parent self-efficacy in mathematics, that open-ended questions are good vehicles for social-emotional learning, and that homework and social-emotional support from adults should be a routine and an expectation in elementary classrooms. It is recommended that further research seek the perspectives of marginalised members of the community, particularly English language learners and Indigenous peoples.
Brigade chicken yard (大队养鸡场)
Creators: name: Ma Yali 马亚力
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Agriculture
valueUri: http://id.worldcat.org/fast/801355
subject: Poultry
valueUri: http://id.worldcat.org/fast/1073919
subject: Poultry industry
valueUri: http://id.worldcat.org/fast/1074025
subject: Hu County Peasant Painting
subject: Agriculture

description: Painter is from Potou brigade, Yuchan People's Commune, Hu county. Price: 14 fen
Teacher perceptions of school leadership on self-efficacy: A study of relations
Creators: Suddaby, Michelle Linda
Publisher: name: University of Alberta Library
Year: 2022

Teacher self-efficacy involves the belief in one’s ability to support and promote student learning, growth, and achievement. Effective leadership is essential in promoting teacher self-efficacy by empowering teachers to have confidence in their ability to support student learning and achievement. Quantitative research has confirmed a relationship between leadership and teacher efficacy. This qualitative study explores Alberta teachers’ experiences with school leadership and its impact on their self-efficacy. With increasing demands, diverse student needs, and high expectations for student success, teachers may doubt their ability to make a difference in the classroom. At the forefront of this study is the idea that teachers, like students, require support to thrive in what they do. This qualitative study will gather personal stories from teachers regarding their experiences and perceptions associated with different leadership to gain insight into how school leaders can promote, support, and sustain teacher self-efficacy. Teachers who feel supported, confident, and capable in their role can support their students to feel the same in their learning and growth. The findings will provide a lens for educators to examine their practice with respect to leadership actions that influence self-efficacy. Additionally, the results will inform leaders on quality practices to foster high teacher efficacy in their schools.
MNE knowledge networks in the pharmaceutical industry: the international geography and strategy of knowledge sourcing and diffusion
Creators: name: Edris, Sarah
Publisher: name: No Publisher Supplied
Year: 2020

description: This dissertation examines the evolution of the international knowledge network of leading MNEs in the pharmaceutical industry from 1976 to 2016. It is organized into eight chapters, including three novel empirical studies on the geography and strategy of knowledge sourcing for technology creation, the subsequent use of new applications, and the reciprocal exchange of knowledge. We begin with a literature review on a line of work which can be traced back to an earlier question, ‘under what conditions do MNEs source technology internationally through a network of geographically dispersed affiliates?’. We then provide an analytical structure for which the histories of the pharmaceutical industry are told in Chapter 3. We elaborate on a set of potential research questions arising from this reflective presentation of the historical background of the industry, and describe the organization of the data used in our empirical studies in Chapter 4. We use patents granted between 1976 and 2016 by the US Patent and Trademark Office (USTPO) to examine the sources or antecedents of technological knowledge over time, arranged by the originating organization and its sector of activity as well as the location of inventors. Using these data, we aim to answer questions related to the geographic and strategic dimension of MNE knowledge structures in three studies. In chapter 5 (Study 1), we examine how sourcing patterns may differ depending on the extent to which foreign subunits focus on competence creating (CC) vs competence exploiting (CE) types of inventive activities. In chapter 6, (Study 2), we investigate patterns of intra-MNE diffusion of CC innovations to the home and within the host country settings. In chapter 7 (Study 3), we examine the degree to which geographic profiles of MNEs regulate their interaction with other firms in the industry. Our dissertation offers a neglected way to examine the sourcing activities of contemporary MNEs and provides new insights on patterns of technological knowledge building within and between organizational and spatial boundaries, and their consequences.
Multi-modal piano note detection using audio and video
Creators: Patel, Nirmalkumar Laxmanbhai
Publisher: name: University of Alberta Library
Year: 2022

Many people have been interested in music recognition. The automated transcription of musical compositions and the identification of sound sources, such as the sort of instruments used, have taken a lot of time and work. With the rise of personal computers and multimedia systems in recent years, research in these areas has gotten a lot of attention. In our paper, we have chosen a piano based song for the purpose of analysis. We have divided the song in chunks called frames for note recognition. Initially, we performed manual analysis to recognize the notes so that we have the correct notes. Then after, we have used finder tip following technique for tracking the notes which are played. This is our input dataset for image or frame based input. Subsequently, the audio is extracted and divided to chunks similar to number of frames in the video. We have performed audio frequency analysis to perform note detection based on the audio. When the variables of interest can’t be measured directly but an indirect measurement is available, Kalman filter and particle filter are used to estimate them as best as possible. They’re also used to obtain the best approximation of states in the presence of noise by integrating readings from numerous sensors. The novelty of our research is that we have implemented Kalman filter and particle filter based on audio and video based input instead of sensor data which is never used before.
Possible high temperature odd parity superconductivity in LaNi$_{7/8}$Co$_{1/8}$O$_3$ (111) bilayers
Creators: name: Ye, Bing
name: Mesaros, Andrej
name: Ran, Ying
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the functional renormalization group technique we demonstrate a route for potentially high-temperature odd-parity superconductivity in ferromagnetic materials caused by repulsive electron interactions, where the superconducting pairing is driven by charge-density wave fluctuations. Our model is directly applicable to a lightly cobalt-doped LaNiO$_3$ bilayer grown in the (111) direction. As the on-site repulsive interaction grows, a charge-density wave state with a charge pattern that respects all point-group symmetries of the bilayer is replaced by a superconducting state with an f-wave pairing.
description: 5 pages, 3 figures
The role of the information set for forecasting - with applications to risk management
Creators: name: Holzmann, Hajo
name: Eulert, Matthias
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: Risk Management (q-fin.RM)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Predictions are issued on the basis of certain information. If the forecasting mechanisms are correctly specified, a larger amount of available information should lead to better forecasts. For point forecasts, we show how the effect of increasing the information set can be quantified by using strictly consistent scoring functions, where it results in smaller average scores. Further, we show that the classical Diebold-Mariano test, based on strictly consistent scoring functions and asymptotically ideal forecasts, is a consistent test for the effect of an increase in a sequence of information sets on $h$-step point forecasts. For the value at risk (VaR), we show that the average score, which corresponds to the average quantile risk, directly relates to the expected shortfall. Thus, increasing the information set will result in VaR forecasts which lead on average to smaller expected shortfalls. We illustrate our results in simulations and applications to stock returns for unconditional versus conditional risk management as well as univariate modeling of portfolio returns versus multivariate modeling of individual risk factors. The role of the information set for evaluating probabilistic forecasts by using strictly proper scoring rules is also discussed.
description: Published in at http://dx.doi.org/10.1214/13-AOAS709 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A unified view of epidemiological modelling and artificial intelligence-based approach to understanding the COVID-19 disease spread for supporting public policy decisions
Creators: Boukrich, Ali
Publisher: name: University of Alberta Library
Year: 2022

The Covid-19 epidemic has emerged as one of the most concerning global public health catastrophes of the twenty-first century, highlighting the critical need for robust forecasting approaches for disease identification, alleviation, and prevention, among other things. Forecasting is one of the most powerful statistical methods for detecting and evaluating trends and forecasting future consequences based on which timely and mitigating actions can be performed all over the world in numerous disciplines. Several statistical methodologies and machine learning techniques have been employed to this goal, depending on the study needed and the data available. Most of the predictions made in the past have been short-term and country-specific. In this paper, an assessment of the potential machine learning technique is suggested for forecasting Covid-19-related characteristics in the long run, both in Canada and globally. This recommended ML model seems to be well for forecasting data from the past and present. Three datasets were used in this analysis, from the Alberta Health Services, Statistics Canada, and Worldometers, respectively. Long-term data forecasts for both Alberta and Canada were detailed using these three datasets, and it was discovered that anticipated data was highly similar to real-time values. The experiment was also carried out for Canadian province predictions as well as country-level predictions around the world, and the results are presented in the Appendix [1].
Maximal multiplier operators in $L^{p(\cdot)}(\mathbb{R}^{n})$ spaces
Creators: name: Gogatishvili, Amiran
name: Kopaliani, Tengiz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B25, 46E30

description: In this paper we study some estimates of norms in variable exponent Lebesgue spaces for maximal multiplier operators.We will consider the case when multiplier is the Fourier transform of a compactly supported Borel measure
Weapon classification using bounding box regression algorithms
Creators: Trivedi, Kathan
Publisher: name: University of Alberta Library
Year: 2022

Crime rates are increasing at a very high rate globally. The use of weapons in schools, airports, and streets is gaining popularity. To prevent this we have a surveillance system that is monitored by security officers and requires constant observation. This is a tiresome job and involves human errors regardless of the significance of the problem. This research studies different machine learning algorithms for weapon detection and classification from images and videos. We have classified the data into four segments: (1) Knife (2) Pistol (3) Rifle (4) Grenade. We have analyzed supervised learning models consisting of around 5000 images with manual labeling of each image. Due to the lack of images for every class, the images are selected from the internet manually. This study involves the analysis of deep learning algorithms such as VGG16, VGG19, ResNet50, DenseNet201, and MobileNetV3Large to predict the potential threat from the given input and identify the particular weapon with a bounding box. The training of the model involves pre-processing of images and extraction of various features of the image. Extracted features are then passed through convolutional layers to predict the output. Different performance metrics are used to compare the performance of the

deep learning detectors. The result of this study will help the government to establish an automated and reliable surveillance system.
A Dynamic Feedforward Control Strategy for Energy-efficient Building System Operation
Creators: name: Chen, Xia
name: Cai, Xiaoye
name: Kümpel, Alexander
name: Müller, Dirk
name: Geyer, Philipp
Publisher: name: RWTH Aachen University
Year: 2023
Subjects: subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)

description: 6 Seiten (2023).
How to Kill Epsilons with a Dagger -- A Coalgebraic Take on Systems with Algebraic Label Structure
Creators: name: Bonchi, Filippo
name: Milius, Stefan
name: Silva, Alexandra
name: Zanasi, Fabio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: 68Q55, 68Q70

description: We propose an abstract framework for modeling state-based systems with internal behavior as e.g. given by silent or $ε$-transitions. Our approach employs monads with a parametrized fixpoint operator $\dagger$ to give a semantics to those systems and implement a sound procedure of abstraction of the internal transitions, whose labels are seen as the unit of a free monoid. More broadly, our approach extends the standard coalgebraic framework for state-based systems by taking into account the algebraic structure of the labels of their transitions. This allows to consider a wide range of other examples, including Mazurkiewicz traces for concurrent systems.
Human rights as a foundation for social inclusion: influence of the change in equality policies legislation on development of positive identity and social perception of lesbians, gay men and bisexuals in Ireland
Creators: name: Trpin, Mateja
Publisher: name: My University
Year: 2007
Subjects: equality before the law
Ireland
gender discrimination
homosexuality
sex discrimination

description: Second semester University: Queen's University Belfast.
description: Through historical, psychological and legal approach the thesis provides an overview of development of social attitudes towards homosexuality. The core research is concerned with formation of discrimination and its application within the society. By application of legislative overview the thesis then asserts the influence of legal norms on changes of attitudes within social norms. The main aim of research is to show the legal and social developments in the fight for recognition and social inclusion of LGB community. This setting serves to assert whether actual social discrimination is being combated through these developments or it has only assumed a new form. To outline the progress made with regard to changes of attitudes the research provides a case study of LGB movements in Republic of Ireland and Northern Ireland. The impact the equality legislation on actual process of social inclusion of lesbians, gay men and bisexuals in both societies is observed through discussions with LGB community in both countries.
Extremal results on average subtree density of series-reduced trees
Creators: name: Haslegrave, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Vince and Wang showed that the average subtree density of a series-reduced tree is between 1/2 and 3/4, answering a conjecture of Jamison. They ask under what conditions a sequence of such trees may have average subtree density tending to either bound; we answer these questions by giving simple necessary and sufficient conditions in each case.
description: 16 pages
Paving the ways? : gender and equality in a new South Africa
Creators: name: Brandstaetter, Angela
Publisher: name: My University
Year: 2006
Subjects: equality
South Africa
gender discrimination
sex discrimination
women

description: Second semester University: New University of Lisbon
description: As the new Constitutional order of South Africa came into being in the course of democratic transition, the need for a concept of (gender) equality different from its traditional liberal understanding became obvious. Realizing the limits of formal Aristotelian equality based on comparison and contrast, South Africa’s approach was guided by the purpose of transforming existing social inequalities and power imbalances. Thus, it takes account of the heterogeneous context of its citizens and the intersection of public and private spheres, and aims at the construction of substantive justice. This work explores, within the parameters of feminist legal scholarship and the experience of South African jurisprudence, how the constitutional right and value equality, as a basis of all other fundamental rights, can be used to address women’s realities. This means arguing for the expansion of the right to cover issues traditionally outside its scope, like gender-based violence, and to allow equality to guide the interpretation of other rights, the legislation and the development of common law. It also means that the notion of substantive equality becomes the very foundation of state action on all levels, from the judiciary to the executive and the legislature, to use its inherent power for the creation of a less relative and a more absolute equal society.