cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Searching for pulsars in the Galactic Centre at 3 and 2 mm
Creators: name: Torne, Pablo
name: Desvignes, Gregory
name: Eatough, Ralph
name: Kramer, Michael
name: Karuppusamy, Ramesh
name: Liu, Kuo
name: Noutsos, Aris
name: Wharton, Robert
name: Kramer, Carsten
name: Navarro, Santiago
name: Paubert, Gabriel
name: Sanchez, Salvador
name: Sanchez-Portal, Miguel
name: Schuster, Karl
name: Falcke, Heino
name: Rezzolla, Luciano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Pulsars in the Galactic centre promise to enable unparalleled tests of gravity theories and black hole physics and to serve as probes of the stellar formation history and evolution and the interstellar medium in the complex central region of the Milky Way. The community has surveyed the innermost region of the galaxy for decades without detecting a population of pulsars, which is puzzling. A strong scattering of the pulsed signals in this particular direction has been argued to be a potential reason for the non-detections. Scattering has a strong inverse dependence on observing frequency, therefore an effective way to alleviate its effect is to use higher frequencies in a survey for pulsars in the Galactic centre, in particular, close to the supermassive black hole Sagittarius A*. We present the first pulsar survey at short millimetre wavelengths, using several frequency bands between 84 and 156 GHz (3.57-1.92 mm), targeted to the Galactic centre. The observations were made with the Institut de Radioastronomie Millimetrique (IRAM) 30m Telescope in 28 epochs between 2016 December and 2018 May. This survey is the first that is essentially unaffected by scattering and therefore unbiased in population coverage, including fast-spinning pulsars that might be out of reach of lower-frequency Galactic centre surveys. We discovered no new pulsars and relate this result mainly to the decreased flux density of pulsars at high frequencies, combined with our current sensitivity. However, we demonstrate that surveys at these extremely high radio frequencies are capable of discovering new pulsars, analyse their sensitivity limits with respect to a simulated Galactic centre pulsar population, and discuss the main challenges and possible improvements for similar surveys in the future.
description: 14 pages, 6 figures, 4 tables. Accepted for publication in A&A. This version includes language editor corrections
Sergio Waisman, Borges e la traduzione. L’irriverenza della periferia
Creators: name: Tajani, Ornella
Publisher: name: Università degli Studi di Cagliari
Year: 2015

description: La dicotomia centro-periferia è il perno intorno al quale Sergio Waisman articola il suo studio sul rapporto tra Jorge Luis Borges e la traduzione. Strutturando l’analisi secondo un movimento che procede dal generale al particolare e viceversa, Waisman inizia proponendo una panoramica storico-culturale dell’Argentina agli albori dell’attività di Borges; successivamente egli prende in considerazione le principali e più feconde idee dell’autore sulla traduzione, focalizzando l’attenzione su una selezione ragionata di scritti; infine rilancia il discorso esaminando il pensiero di Borges in relazione a quello di altri scrittori e pensatori del XX secolo, dedicando un intero capitolo al rapporto di questi con James Joyce.
description: Between, Vol 5, N° 9 (2015): Censura e auto-censura
Enrico Biasin - Giovanna Maina - Federico Zecca (Eds.), Porn After Porn. Contemporary Alternative Pornographies
Creators: name: Lino, Mirko
Publisher: name: Università degli Studi di Cagliari
Year: 2015

description: Dopo Il Porno Espanso, recensito a suo tempo su Between, il nuovo libro a cura di Enrico Biasin, Giovanna Maina e Federico Zecca, Porn After Porn, è il primo tassello di un'interessante collana, “Mapping Pornographies: Histories, Geographies, Cultures”, che ha l'obiettivo di fornire materiali e strumenti metodologici al dibattito scientifico sulla pornografia contemporanea.I contributi che compongono il volume, dai saggi prettamente accademici alle testimonianze di artisti, produttori e registi del porno, creano tra loro fitte geometrie tematiche che illustrano i corpi, gli usi dei new media, gli sguardi e i consumi delle pornografie alternative, dalla loro proliferazione in Rete alla democratizzazione dell'accesso ai piaceri visivi inscritti nella fruizione di contenuti hard-core a pubblici non esclusivamente maschili ed eterosessuali.
description: Between, Vol 5, N° 9 (2015): Censura e auto-censura
Indirect Detection of Secluded Supersymmetric Dark Matter
Creators: name: Barnes, Patrick
name: Johnson, Zachary
name: Pierce, Aaron
name: Shakya, Bibhushan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Weak-scale secluded sector dark matter can reproduce the observed dark matter relic density with thermal freeze-out within that sector. If nature is supersymmetric, three portals to the visible sector - a gauge portal, a Higgs portal, and a gaugino portal - are present. We present gamma ray spectra relevant for indirect detection of dark matter annihilation in such setups. Since symmetries in the secluded sector can stabilize dark matter, $R$-parity is unnecessary, and we investigate the impact of $R$-parity violation on annihilation spectra. We present limits from the Fermi Large Area Telescope observations of dwarf galaxies and projections for Cherenkov Telescope Array observations of the galactic center. Many of our results are also applicable to generic, non-supersymmetric setups.
description: 30 pages, 10 figures
A Wide-area VLA Continuum Survey near the Galactic Center at 6 and 20 cm Wavelengths
Creators: name: Law, C. J.
name: Yusef-Zadeh, F.
name: Cotton, W. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe the results of a mJy-sensitivity, VLA survey of roughly 1 square degree near the Galactic center at 6 and 20 cm. Catalogs of compact and filamentary structures are given and compared to previous surveys of the region. Eight of the unusual, nonthermal radio filaments are detected in 6 cm polarized emission; three of these are the first such detections, confirming their nonthermal nature. This survey found emission from a filament at (l,b)=(359.1,0.75), or a projected distance from Sgr A* of 200 pc, greatly extending the latitude range observed with such features. There is also new evidence for spatial gradients in the 6/20 cm spectral indices of some filaments and we discuss models for these gradients. In studying compact sources, the combination of spectral index and polarization information allows us to identify pulsar candidates and compact HII regions in the survey. There is also some evidence that the flux measurements of compact sources may be affected by electron scattering from the interstellar medium in the cent ral few hundred parsecs of the Galaxy.
description: Accepted to ApJS. Uses emulateapj style with 47 pages, 29 figures, and 13 tables
Geospatial Data-as-a-Service: Towards planetary scale real-time analytics
Creators: name: Evans, Ben
name: Larraondo, Pablo
name: Antony, Joseph
name: Richards, Clare
Publisher: name: Zenodo
Year: 2017

description: The rapid growth of earth systems, environmental and geophysical datasets poses a challenge to both end-users and infrastructure providers. For infrastructure and data providers, tasks like managing, indexing and storing large collections of geospatial data needs to take into consideration the various use cases by which consumers will want to access and use the data. Considerable investment has been made by the Earth Science community to produce suitable real-time analytics platforms for geospatial data. There are currently different interfaces that have been defined to provide data services. Unfortunately, there is considerable difference on the standards, protocols or data models which have been designed to target specific communities or working groups. The Australian National University’s National Computational Infrastructure (NCI) is used for a wide range of activities in the geospatial community. Earth observations, climate and weather forecasting are examples of these communities which generate large amounts of geospatial data. The NCI has been carrying out significant effort to develop a data and services model that enables the cross-disciplinary use of data. Recent developments in cloud and distributed computing provide a publicly accessible platform where new infrastructures can be built. One of the key components these technologies offer is the possibility of having “limitless” compute power next to where the data is stored. This model is rapidly transforming data delivery from centralised monolithic services towards ubiquitous distributed services that scale up and down adapting to fluctuations in the demand. NCI has developed GSKY, a scalable, distributed server which presents a new approach for geospatial data discovery and delivery based on OGC standards. We will present the architecture and motivating use-cases that drove GSKY’s collaborative design, development and production deployment. We show our approach offers the community valuable exploratory analysis capabilities, for dealing with petabyte-scale geospatial data collections.
Hartree-Fock variational bounds for ground state energy of chargeless fermions with finite magnetic moment in presence of a hard core potential:A stable ferromagnetic state
Creators: name: Jha, Sudhanshu S.
name: Mahanti, S. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Astrophysics (astro-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use different types of determinantal Hartree-Fock (HF) wave functions to calculate variational bounds for the ground state energy of spin-half fermions in volume V_0, with mass m, electric charge zero, and magnetic moment mu, which are interacting through long range magnetic dipole-dipole interaction. We find that at high densities when the average inter particle distance r_0 becomes small compared to the magnetic length r_m, a ferromagnetic state with spheroidal occupation function, involving quadrupolar deformation, gives a lower energy compared to the variational energy for the uniform paramagnetic state. This HF variational bound to the ground state energy turns out to have a lower energy than our earlier calculation in which instead of a determinantal wavefunction we had used a positive semi-definite single particle density matrix operator whose eigenvalues, having quadrupolar deformation, were allowed to take any value from 0 to 1. This system is of course still unstable towards infinite density collapse, but we show here explicitly that a suitable short range repulsive (hard core) interaction of strength U_0 and range a can stop this collapse.The existence of a stable high density ferromagnetic state with spheroidal occupation function is possible as long as the ratio of hard-core and magnetic dipole coupling constants is not very small compared to 1.
description: A shorter version of this paper will appear in Pramana - Journal of Physics
Η έρευνα της σοφίας ως γνωστικού χαρακτηριστικού των ατόμων και κυρίως των ηλικιωμένων
Creators: name: Μωραϊτου, Δέσποινα
Publisher: name: Aristotle University of Thessaloniki
Year: 2002
Subjects: Δια βίου ανάπτυξη
Ψυχολογία του εξαιρετικά θετικού, του βέλτιστου
Διαλεκτική σκέψη
Μετατυπική σκέψη
Μετασυμβατική ηθικότητα
Υψηλός ηθικός-οντολογικός προσανατολισμός
Λύση ασαφώς δομημένων ποβλημάτων ζωής
Ανθρώπινο πρότυπο
Αδηλες θεωρίες
Life-span development
Optimal psychology
Dialectical thought
Metatypical thought
Postconvetional morality
High moral-ontological thought
Ill-structure life-problem solving
Implicit theories

description: Ο βασικός σκοπός της παρούσας διατριβής ήταν η διερεύνηση των διαστάσεων της σοφίας ως ψυχολογικής δομής. Κατά δεύτερο λόγο η εργασία αυτή αποσκοπούσε στη διερεύνηση των αναπτυξιακών προτύπων καθώς και των επιδράσεων του φύλου, του μορφωτικού και του κοινωνικομορφωτικού επιπέδου, του είδους του επαγγέλματος και της συζυγικής κατάστασης όσον αφορά στην απόδοση ειδικών ψυχολογικών διαστάσεων στη σοφία. Επιπλέον σε τρίτο επίπεδο, η εν λόγω προσπάθεια στόχευε στην εμπειρική επιβεβαίωση της ύπαρξης ως δομικών συστατικών στη σοφία, τριών ψυχολογικών διαστάσεων οι οποίες βρέθηκε ότι της αποδίδονται μέσα από τις γλωσσικές περιγραφές. (ΓΙΑ ΠΕΡΑΙΤΕΡΩ ΛΕΠΤΟΜΕΡΕΙΕΣ ΚΟΙΤΑ ΣΤΟ ΤΕΛΟΣ ΤΟΥ ΠΛΗΡΟΥΣ ΚΕΙΜΕΝΟΥ ΤΗΣ ΔΙΑΤΡΙΒΗΣ)
description: The basic purpose of this paper was to explore the dimensions of wisdom as a psychological structure. its secondary intention was to investigate the developmental models and effects of gender, educatinal and social-educational status, type of work and marital status in respect of the attribution of special psychological dimensions to the structure of wisdom. Moreover, on a third level the paper attempts to find empirical confirmation of the existence as structural constituents of wisdom of three psychological dimensions, which have been found to the attributed to wisdom in verbal descriptions. (FOR MORE DETAILS LOOK AT THE LAST CHAPTERS OF THIS DISSERTATION - FULL TEXT)
description: Περιέχει παραρτήματα
Marco Benoît Carbone, Tentacle erotica. Orrore, seduzione, immaginari pornografici
Creators: name: Zenobi, Luca
Publisher: name: Università degli Studi di Cagliari
Year: 2015

description: “Mimesis Media/Eros. Sessualità, tecnologia, rappresentazioni” è la collana diretta da Giovanna Maina e Federico Zecca, due giovani studiosi che, assieme ad Enrico Biasin (Porno espanso, Mimesis, 2011, Porn after Porn, Mimesis International, 2014), hanno avuto il merito di “sdoganare” i porn studies in Italia e, soprattutto, di averlo fatto in una maniera tale da renderli un componente di primo livello del dibattito scientifico, grazie alla collaborazione con studiosi internazionali e a un attento e competente lavoro su categorie che fanno parte oramai da qualche anno del panorama culturale contemporaneo. I workshop sulla pornografia organizzati all’interno delle attività del FilmForum di Udine e Gorizia sono parte integrante e creativa di un laboratorio che in breve tempo ha scalfito le rigide barriere disciplinari dell’accademia italiana coinvolgendo studiosi di discipline e campi diversi.
description: Between, Vol 5, N° 9 (2015): Censura e auto-censura
Supplementary document for Aberration correction in epi-fluorescence microscopy using unknown speckle illumination - 6958820.pdf
Creators: name: Premillieu, Evolene
name: Aguirre, Antonio Miguel Caravaca
name: labouesse, simon
name: Irsch, Kristina
name: Piestun, Rafael
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplementary Information
English as a second language (ESL) student teachers’ perceptions of change in their practical knowledge over the course of a 20-hour practicum
Creators: name: Cook, Melodie Lorie
Publisher: name: University of British Columbia
Year: 2008

description: Although studies in student teachers' perceptions of change in their practical knowledge over the course of a teaching practicum have been undertaken, almost no studies exist reporting perceptions of change by student teachers in the field of English as a Second Language (ESL). One study researching such changes in ESL student teachers' practical knowledge, over a sixteen-week period, found that changes occurred in student teachers' abilities to set up and carry out lessons, use classroom space, select content, and treat student errors. Another study, using dialogue journals as a method of data collection, found that over a tenweek practicum period, student teachers reported changes in their perceptions of methods and activities, teaching techniques, and lesson organization. The present study seeks to add to the body of knowledge in this area by investigating the changes which occurred in five ESL student teachers' perceptions of their practical knowledge over the course of a 20- hour practicum. It also describes these student teachers' comments as to how aspects of the teaching course content and practicum might have been developed or expanded to facilitate their practicum experiences. The study found that changes in teachers' perceptions of their practical knowledge occurred in different areas, depending on such agents as student-sponsor teacher relationships, rapport with students, and experiences during the practicum period. Absence of change was attributed to several factors, among them, that some of the scaled items used for data collection may have been exclusively applicable to elementary and secondary school classrooms, as well as the short nature of the practicum. Expectations of the student teachers in their practicum settings is also another factor affecting absence of change. All of the student teachers thought that modifications to the course content (i.e., a more practical and less theoretical focus), and a lengthening of the practicum component would have been beneficial in heightening their feelings of competence and confidence in teaching. Further studies should attempt to document changes in student teachers' perceptions, matching them with actual teaching abilities perceived through the practicum period, by way of participant-observation, interviews with student teachers, sponsor teachers, practicum supervisors, and ESL students. Research regarding sponsor-student teacher relationships and gender is also recommended.
Supplementary document for Aberration correction in epi-fluorescence microscopy using unknown speckle illumination - 7099739.pdf
Creators: name: Premillieu, Evolene
name: Aguirre, Antonio Miguel Caravaca
name: labouesse, simon
name: Irsch, Kristina
name: Piestun, Rafael
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplementary document
A Reassessment of the Quasi-Simultaneous Arrival Effect in Secondary Ion Mass Spectrometry
Creators: name: Ogliore, Ryan
name: Nagashima, Kazuhide
name: Huss, Gary
name: Haenecour, Pierre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Quasi-simultaneous arrival (QSA) effects in secondary ion mass spectrometry can create mass-indepedent inaccuracies in isotope measurements when using electron multiplier detectors (EMs). The simple Poisson statistical model of QSA does not explain most experimental data. We present pulse-height distributions (PHDs) and time-series measurements to better study QSA. Our data show that PHDs and the distribution of multiple arrivals on the EM are not consistent with the Poisson model. Multiple arrivals are over-dispersed compared to Poisson and are closer to a negative binomial distribution. Through an emission-transmission-detection model we show that the QSA correction depends on the non-Poisson emission of multiple secondary ions, the secondary ion energy distribution, and other factors, making an analytical correction impractical. A standards-based correction for QSA is the best approach, and we show the proper way to calculate standards-normalized $δ$ values to minimize the effect of QSA.
description: In press at Nuclear Inst. and Methods in Physics Research, B
Supplementary document for Computation of emitter-plasmon interactions using an axis-symmetric model for off-axis dipoles - 7138138.pdf
Creators: name: Otomalo, Tadele
name: HU, HUATIAN
name: Alvarez-Perez, Gonzalo
name: Rho, Junsuk
name: Ciraci, Cristian
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplement 1
Supplement to "Association of genetically predicted serum estradiol with risk of thromboembolism in men: A mendelian randomization study"
Creators: name: Nethander, Maria
name: Quester, Johan
name: Vandenput, Liesbeth
name: Ohlsson, Claes
Publisher: name: Zenodo
Year: 2021

description: Supplemental tables and figures to "Association of genetically predicted serum estradiol with risk of thromboembolism in men: A mendelian randomization study" by Maria Nethander, Johan Quester, Liesbeth Vandenput and Claes Ohlsson.
VisioRed: A Visualisation Tool for Interpretable Predictive Maintenance
Creators: name: Paraschos, Spyridon
name: Mollas, Ioannis
name: Bassiliades, Nick
name: Tsoumakas, Grigorios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.0; I.2.6; H.5.2

description: The use of machine learning rapidly increases in high-risk scenarios where decisions are required, for example in healthcare or industrial monitoring equipment. In crucial situations, a model that can offer meaningful explanations of its decision-making is essential. In industrial facilities, the equipment's well-timed maintenance is vital to ensure continuous operation to prevent money loss. Using machine learning, predictive and prescriptive maintenance attempt to anticipate and prevent eventual system failures. This paper introduces a visualisation tool incorporating interpretations to display information derived from predictive maintenance models, trained on time-series data.
description: 4 pages, 2 figures, Submitted to IJCAI
Το ιστορικό και κοινωνικό περιβάλλον στο οποίο αναπτύχθηκαν το κρητικό και το ιταλικό αναγεννησιακό μανιεριστικό θέατρο: επιδράσεις του ιταλικού μανιεριστικού θεάτρου στο κρητικό
Creators: name: Βασιλειάδου, Κλεονίκη Ευσταθίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2002
Subjects: Αναγέννηση
Ιταλικό θέατρο
Κρητικό θέατρο
Ποιμενικό δράμα
Renaissance drama
Italian theatre
Theatre of Creta

description: Το ιταλικό αναγεννησιακό και μανιεριστικό θέατρο άσκησε μεγάλη επίδραση στο κρητικό θέατρο της ίδιας εποχής.Με μία μελέτη η οποία ξεκινά από την κωμωδία συνεχίζει στο βουκολικό δράμα και καταλήγει στην τραγωδία, διαπιστώνουμε το λειτουργικό ρόλο που είχε το κάθε είδος στο χώρο που εξελισσόταν. Το ιταλικό θέατρο, απευθυνόμενο σε αριστοκρατικό κοινό, αδυνατεί να ξεπεράσει το μοιρολατρικό και παθητικό του χαρακτήρα, ο οποίος κάποτε εκφράζεται ως στοιχείο σύγχυσης ιδιαίτερα στις τραγωδίες και κυρίως στους Τζιράλντι, Γκρότο και Τάσσο, που παρουσιάζουν στα έργα τους στοιχεία διάλυσης και κριτικής ενός υποκριτικού κόσμου. Αντίθετα, το κρητικό θέατρο απευθυνόμενο σε ένα μικτό κοινό, ανέπτυξε έναν διαφορετικό ρόλο που δεν ήταν απλή μίμηση προτύπων αλλά ένας ζωντανός φορέας που διασκέδαζε τους κατοίκους δεν πρόσβαλλε τις χαμηλότερες τάξεις, περνούσε μηνύματα αφύπνισης για να καταλήξει τελικά σε παθητικότητα
description: The italian theatre of Renaissance and of manierism had a big influence to the theatre of Creta of the same period.With a study which begins from comedy, continues with pastoral drama and ends up to tragedy, we confirm the functional role which every kind in the area where it was envolved had. The italian theatre, addressed mainly to an aristocratical audience was unable to overcome its passive nature which was although expressed as an element of confusion especially in tragedy and mainly in the acts of Giovanni Giraldi, Torquato Tasso and Luigi Grotto, who presented in their acts, elements, of dissolution and criticism of an inseicere world. On the contrary the theatre of Creta was addressed to a mixed audience, developed a different rde which it wasn't just a plain imitation of models but one vivid carrier which entertained the inhabitants, didn't insult the lower classes and passed messages of awakening to finally end up to passivity
description: Περιέχει ευρετήριο
Determining the H+ Region/PDR Equation of State in Star Forming Regions
Creators: name: Abel, N. P.
name: Ferland, G. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The emission line regions of starburst galaxies and active nuclei reveal a wealth of spectroscopic information. A unified picture of the relationship between ionized, atomic, and molecular gas makes it possible to better understand these observations. We performed a series of calculations designed to determine the equation of state, the relationship between density, temperature, and pressure, through emission-line diagnostic ratios that form in the H+ region and PDR. We consider a wide range of physical conditions in the H+ region. We connect the H+ region to the PDR by considering two constant pressure cases, one with no magnetic field and one where the magnetic field overwhelms the thermal pressure. We show that diagnostic ratios can yield the equation of state for single H+ regions adjacent to single PDRs, with the results being more ambiguous when considering observations of entire galaxies. As a test, we apply our calculations to the Orion H+/PDR region behind the Trapezium. We find the ratio of thermal to magnetic pressure in the PDR to be \~1.2. If magnetic and turbulent energy are in equipartition, our results mean the magnetic field is not the cause of the unexplained broadening in M 42, but may significantly affect line broadening in the PDR. Since Orion is often used to understand physical processes in extragalactic environments, our calculations suggest magnetic pressure should be considered in modeling such regions.
description: 21 pages, 7 figures, accepted for publication in ApJ
Gauge theory description of the fate of the small Schwarzschild blackhole
Creators: name: Wadia, Spenta R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this talk we discuss the fate of the small Schwarzschild blackhole of $AdS_5\times S^5$ using the AdS/CFT correspondence at finite temperature. The third order $N = \infty$ phase transition in the gauge theory corresponds to the blackhole-string transition. This singularity is resolved using a double scaling limit in the transition region. The phase transition becomes a smooth crossover where multiply wound Polyakov lines condense. In particular the density of states is also smooth at the crossover. We discuss the implications of our results for the singularity of the Lorenztian section of the small Schwarzschild blackhole. (\it {Talk given at the 12th Regional conference in Islamabad, Pakistan, based on hep-th/0605041})
description: 16 pages, 1 figure
Genuine tripartite entanglement and quantum phase transition
Creators: name: Yu, Chang-shui
name: Song, He-shan
name: Cui, Hai-tao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new formulation called as entanglement measure for simplification, is presented to characterize genuine tripartite entanglement of $(2\times 2\times n)-$dimensional quantum pure states. The formulation shows that the genuine tripartite entanglement can be described only on the basis of the local $(2\times 2)-$dimensional reduced density matrix. In particular, the two exactly solvable models of spin system studied by Yang (Phys. Rev. A \textbf{71}, 030302(R) (2005)) is reconsidered by employing the entanglement measure. The results show that a discontinuity in the first derivative of the entanglement measure or in the entanglement measure itself of the ground state just corresponds to the existence of quantum phase transition, which is obviously prior to concurrence. Hence, the given entanglement measure may become a new alternate candidate to help study the connection between quantum entanglement and quantum phase transitions.
description: 5 pages and 1 figure
Supplementary document for Computation of emitter-plasmon interactions using an axis-symmetric model for off-axis dipoles - 7144967.pdf
Creators: name: Otomalo, Tadele
name: HU, HUATIAN
name: Alvarez-Perez, Gonzalo
name: Rho, Junsuk
name: Ciraci, Cristian
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplement 1
Flash converting of chalcocite concentrate : a study of the flame
Creators: name: Shook, Andrew A.
Publisher: name: University of British Columbia
Year: 2008

description: The “flame” resulting from the flash converting of Inco chalcocite (or “MK”) copper concentrate has been studied, with the primary objective of reducing or eliminating the dust production asso ciated with this process. Experimental trials with MK concentrate were performed in the UBC flash smelting pilot plant in which the response of the flash flame (as determined by solids and gas compositions) was examined as a function of process variables. In addition, solids and gas samples were recovered from the flash flame in the Inco Port Colbome pilot plant. These experiments indicated that the rate of dust production in the UBC pilot plant was significantly lower than that in the Inco Port Colbome pilot plant, and that the oxygen-to-concentrate ratio plays an important role in the observed dust generation rate. A mathematical model of an individual MK concentrate particle has shown that dust production is consistent with particle fragmentation initiated by the boiling of copper within the particle. Particle size, oxygen concentration and temperature were found to affect the ability of an MK concentrate particle to fragment by this mechanism. Incorporating this particle combustion study, a mathematical model of the chalcocite flash flame was developed. This model utilized the boundary-layer form of the gas-phase conservation equations (modified to deal with recirculation and incorporating the effects of particles on the gas) to describe the combustion phenomena occurring within the chalcocite flash converting flame. The mathematical model was verified first by non-reacting studies from the literature and then by comparison with experimental data taken from the UBC flash furnace. The mathematical model was then extended to describe the behaviour of the Port Colborne pilot plant. The mathematical model has shown that the production of dust within the chalcocite flash flame occurs due to the dissimilar spreading rates of the concentrate particles and the injected oxygen. Two regions within the flame were identified as leading to dust generation : a ‘near-edge” region of high local oxygen-to-concentrate ratio, and a ‘near-centre” region with high radial oxygen transport. The “near-edge” region has been suggested as being responsible for the dust produced by the UBC pilot plant, while the “near-centre” region is responsible for the dust produced in the Port Colborne pilot plant. The occurrence of these two regions could be eliminated by improved burner design.
The Duality of Data and Knowledge Across the Three Waves of AI
Creators: name: Sheth, Amit
name: Thirunarayan, Krishnaprasad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.4

description: We discuss how over the last 30 to 50 years, Artificial Intelligence (AI) systems that focused only on data have been handicapped, and how knowledge has been critical in developing smarter, intelligent, and more effective systems. In fact, the vast progress in AI can be viewed in terms of the three waves of AI as identified by DARPA. During the first wave, handcrafted knowledge has been at the center-piece, while during the second wave, the data-driven approaches supplanted knowledge. Now we see a strong role and resurgence of knowledge fueling major breakthroughs in the third wave of AI underpinning future intelligent systems as they attempt human-like decision making, and seek to become trusted assistants and companions for humans. We find a wider availability of knowledge created from diverse sources, using manual to automated means both by repurposing as well as by extraction. Using knowledge with statistical learning is becoming increasingly indispensable to help make AI systems more transparent and auditable. We will draw a parallel with the role of knowledge and experience in human intelligence based on cognitive science, and discuss emerging neuro-symbolic or hybrid AI systems in which knowledge is the critical enabler for combining capabilities of the data-intensive statistical AI systems with those of symbolic AI systems, resulting in more capable AI systems that support more human-like intelligence.
description: A version of this will appear as (cite as): IT Professional Magazine (special section to commemorate the 75th Anniversary of IEEE Computer Society), 23 (3) April-May 2021
Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results
Creators: name: McClure, M. L.
name: Dyer, C. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on general relativity, it can be argued that deviations from a uniform Hubble flow should be thought of as variations in the Universe's expansion velocity field, rather than being thought of as peculiar velocities with respect to a uniformly expanding space. The aim of this paper is to use the observed motions of galaxies to map out variations in the Universe's expansion, and more importantly, to investigate whether real variations in the Hubble expansion are detectable given the observational uncertainties. All-sky maps of the observed variation in the expansion are produced using measurements obtained along specific lines-of-sight and smearing them across the sky using a Gaussian profile. A map is produced for the final results of the HST Extragalactic Distance Scale Key Project for the Hubble constant, a comparison map is produced from a set of essentially independent data, and Monte Carlo techniques are used to analyse the statistical significance of the variation in the maps. A statistically significant difference in expansion rate of 9 km/s/Mpc is found to occur across the sky. Comparing maps of the sky at different distances appears to indicate two distinct sets of extrema with even stronger statistically significant variations. Within our supercluster, variations tend to occur near the supergalactic plane, and beyond our supercluster, variations tend to occur away from the supergalactic plane. Comparison with bulk flow studies shows some concordance, yet also suggests the bulk flow studies may suffer confusion, failing to discern the influence of multiple perturbations.
description: 23 pages, 5 figures, to be published in New Astronomy
Allgemeines Landrecht für die Preußischen Staaten (1794): il contratto di edizione
Creators: name: Pievatolo, Maria Chiara
Publisher: name: Zenodo
Year: 2006

description: Il codice fredericiano del 1794 regolava esclusivamente il contratto di edizione dei libri, senza riconoscere una vera e propria "proprietà intellettuale". Le sezioni del codice, qui offerte in traduzione italiana, dedicate al contratto di edizione sono un termine di confronto prezioso per valutare l'incidenza degli scritti di Kant del 1785 e del 1797 sulla ristampa dei libri.
Carl Schmitts Freund-Feind-Theorie
Creators: name: Thiele, Ulrich
Publisher: name: Ruperto Carola
Year: 2021

description: Der Staatsrechtler und Politische Philosoph Carl Schmitt gilt als umstrittene Autorität der Freund-Feind-Theorie: In „Freund“ versus „Feind“ sah er die Grundunterscheidung alles Politischen. Auch heute noch finden die Überlegungen Schmitts, der als ideologisches Vorbild der Neuen Rechten gesehen wird, weltweite Aufmerksamkeit und strahlen eine faszinierende Wirkung aus – aber wie stehen sie im Verhältnis zu aktuellen politischen Phänomenen wie verschwörungsmythischen Reaktionen auf die Corona-Pandemie?
description: Ruperto Carola, Nr. 17 (2021): Freund & Feind
Αποκεντρωμένη διαχείριση του συστήματος μεταφοράς ηλεκτρικής ενέργειας
Creators: name: Μπίσκας, Παντελής Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2003
Subjects: Βέλτιστη ροή φορτίου συνεχούς ρεύματος(ΒΡΦ-ΣΡ)
Διαχείριση συνωστισμού(ΔΣ)
Συντελεστής κατανομής απώλειας γραμμής(ΣΚΑΓ)
Συντελεστής κατανομής μεταφοράς ισχύος(ΣΚΜΙ)
Γενικευμένος συντελεστής κατανομής παραγωγής(ΓΣΚΠ)
Διαθέσιμη ικανότητα μεταφοράς(ΔΙΜ)
Direct current optimal power flow(DC-OPF)
Congestion Management(CM)
Power transfer distribution factor(PTDF)
Line outage distribution factor(LODF)
Generalized generation distribution factor(GGDF)
Available transmission capacity(ATC)

description: Η διατριβή αυτή πραγματεύεται το πρόβλημα αποκεντρωμένης διαχείρισης του συστήματος μεταφοράς ηλεκτρική ενέργειας. Αναπτύσσεται ένας αλγόριθμος αποκεντρωμένης επίλυσης του προβλήματος βέλτιστης ροής φορτίου συνεχούς ρεύματος(ΒΡΦ-ΣΡ), ο οποίος υλοποιείται σε δίκτυο υπολογιστών με βάση την τεχνική της παράλληλης επεξεργασίας. Ο αλγόριθμος αυτός εφαρμόζεται και στην αποκεντρωμένη επίλυση του προβλήματος διαχείρισης συνωστισμού. Επίσης, εισάγονται περιορισμοί ασφαλείας στο πρόβλημα ΒΡΦ-ΣΦ και επιλύεται αποκεντρωμένα το πρόβλημα ΒΡΦ με περιορισμούς ασφαλείας. Τέλος, αναπτύσσεται ένας αλγόριθμος αποκεντρωμένης επίλυσης του προβλήματος ροής φορτίου ΣΡ, ο οποίος εφαρμόζεται στον αποκεντρωμένο υπολογισμό των συντελεστών κατανομής ισχύος των συντελεστών κατανομής απώλειας γραμμής και γενικευμένων συντελεστών κατανομής παραγωγής καθώς και της διαθέσιμης ικανότητας μεταφοράς μεταξύ δύο κόμβων ενός συστήματος
description: This thesis daels with the decentralized management of the transmission system. A method for the decentralized solution of the Direct Current Optical Power Flow(DC-OPF) problem is developed, which is implemented on a network of computers using parallel processing. The method is applied in the decentralized solution of the congestion management problem. Also, security constraints are incorporated into the DC-OPF problem and the Security Constrained Optical Power Flow(SCOPF) problem is solved in a decentralized solution of the Power Transfer Distribution Factors(PTDFs), the Line Outage Distribution Factors(LODFs) and the Generalized Generation Distribution Factors (GGDFs), as well as the Available Transmission between two system modes
description: Τομέας Ηλεκτρικής Ενέργειας. Εργαστήριο Συστημάτων Ηλεκτρικής Ενέργειας
Die Zerstörung des Heidelberger Schlosses
Creators: name: Externbrink, Sven
Publisher: name: Ruperto Carola
Year: 2021

description: Über Jahrhunderte hinweg galt Frankreich als „Erbfeind“ Deutschlands – ein Verhältnis, das erst nach der Katastrophe des Zweiten Weltkriegs überwunden wurde und sich zur deutsch-französischen Freundschaft entwickelte. Diese „Erbfeindschaft“ gründete auch in der Verwüstung Heidelbergs und der Kurpfalz durch die französische Armee Ende des 17. Jahrhunderts. Ein noch heute sichtbares Relikt dieser Zerstörung ist die Ruine des Heidelberger Schlosses, die nicht nur als Symbol für die Vergänglichkeit das romantische Heidelberg-Bild prägte, sondern die mit ihrer Geschichte auch ein exemplarischer deutsch-französischer Erinnerungsort ist.
description: Ruperto Carola, Nr. 17 (2021): Freund & Feind
Σύγκριση μεθόδων απλής τυχαίας και συστηματικής δειγματοληψείας
Creators: name: Πετρά, Ασημίνα Ν.
Publisher: name: Aristotle University of Thessaloniki
Year: 2002
Subjects: Απλή τυχαία δειγματοληψία
Συστηματική δειγματοληψία
Κοκκομετρία υλικών d90, d86, d14
Simple random sampling
Systematic sampling
Granulate metrics of material d90, d86, d14

description: Δύο από τις πιο γνωστές και εύκολα χρησιμοποιούμενες μεθόδους δειγματοληψίας είναι η απλή τυχαία και η συστηματική δειγματοληψία. Στην εργασία αυτή διερευνάται η ακρίβεια της απλής τυχαίας δειγματοληψίας και της συστηματικής για την περίπτωση υδρολογικών μεταβλητών. Ετσι από πληθυσμό 1339 παρατηρήσεων στην περιοχή του Αξιού για τον οποίο ήταν γνωστές οι παράμετροι ορισμένων μεταβλητών, πάρθηκε ένα απλό τυχαίο δείγμα χωρίς επανάθεση και ένα συστηματικού μεγέθους 50 παρατηρήσεων. Με τη βοήθεια των δειγμάτων εκτιμήθηκαν οι ήδη γνωστές παράμετροι του πληθυσμού. Τα κυριότερα συμπεράσματα της έρευνας έδειξαν ακατάλληλη δειγματοληψία θα μπορούσε να χαρακτηριστεί η ΣΔ για τον υπολογισμό του μ.ο. του ύψους βροχής αφού η διαφορά του μ.ο. σε σχέση με αυτή του πληθυσμού έφθασε στο 63,5% ενώ η ΑΤΔ υποεκτίμησε τον μ.ο. αφού η διαφορά έφθασε στο -6,05%. Για την εκτίμηση των μεταβλητών-κοκκομετρία υλικών d90, d86, d14, ύψος βροχής, ελάχ. θερμοκρασία και ταχύτητα ανέμου θα πρέπει να χρησιμοποιηθεί η ΑΤΔ, ενώ για τις μεταβλητές στάθμης νερού, υγρή επιφάνεια, υγρή περίμετρος, ταχύτητα νερού-κοκκομετρία υλικών dm,max θερμοκρασία, μέση θερμοκρασία, εξάτμιση μεγ.σχετ. υγρ.%, ελάχ. σχετ. υγρ.%, μεση σχετ. υγρ.%, παροχή και τραχύτητα προτιμότερη είναι η ΣΔ.
description: Two of the most common and easily used methods of sampling are the simple random and thw systematic sampling. This research investigates accuracy of these methods in the case of hydrologic variables. From a population of 1339abservations in the area of Axiou where the parameters of certain variables were known, a simple random sample and a systematic sample of 50 parameters were taken. It seem that the systematic sampling demands a smaller sample for =+-5% and probability 95%. For the sample(same) size, both the methods provide valuations in the population parameters that do not statistically differ more better the valuations of that of systematic sampling.For the assessment of granulate metric material d90,d86,d14, rains height, min temperature and windspeed, the simple random sampling method need to be used, where is it for the water level, wet surface, wet perimeter, water speed, granulate metrics of material dm, max temperature average temperature, max. relative humidity %, minimum relative humidity%, average relative humidity%, availability and in temperateness, the systematic sampling is the most preferred method
description: Τομέας Σχεδιασμού και Ανάπτυξης Φυσικών Πόρων. Εργαστήριο Δασικής Βιομετρίας
Dense molecular gas properties on 100 pc scales across the disc of NGC 3627
Creators: name: Bešlić, I.
name: Barnes, A. T.
name: Bigiel, F.
name: Puschnig, J.
name: Pety, J.
name: Contreras, C. Herrera
name: Leroy, A. K.
name: Usero, A.
name: Schinnerer, E.
name: Meidt, S. E.
name: Emsellem, E.
name: Hughes, A.
name: Faesi, C.
name: Kreckel, K.
name: Belfiore, F. M. C.
name: Chevance, M.
name: Brok, J. S. den
name: Eibensteiner, C.
name: Glover, S. C. O.
name: Grasha, K.
name: Jimenez-Donaire, M. J.
name: Klessen, R. S.
name: Kruijssen, J. M. D.
name: Liu, D.
name: Pessa, I.
name: Querejeta, M.
name: Rosolowsky, E.
name: Saito, T.
name: Santoro, F.
name: Schruba, A.
name: Sormani, M. C.
name: Williams, T. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is still poorly constrained how the densest phase of the interstellar medium varies across galactic environment. A large observing time is required to recover significant emission from dense molecular gas at high spatial resolution, and to cover a large dynamic range of extragalactic disc environments. We present new NOrthern Extended Millimeter Array (NOEMA) observations of a range of high critical density molecular tracers (HCN, HNC, HCO+) and CO isotopologues (13CO, C18O) towards the nearby (11.3 Mpc), strongly barred galaxy NGC 3627. These observations represent the current highest angular resolution (1.85"; 100 pc) map of dense gas tracers across a disc of a nearby spiral galaxy, which we use here to assess the properties of the dense molecular gas, and their variation as a function of galactocentric radius, molecular gas, and star formation. We find that the HCN(1-0)/CO(2-1) integrated intensity ratio does not correlate with the amount of recent star formation. Instead, the HCN(1-0)/CO(2-1) ratio depends on the galactic environment, with differences between the galaxy centre, bar, and bar end regions. The dense gas in the central 600 pc appears to produce stars less efficiently despite containing a higher fraction of dense molecular gas than the bar ends where the star formation is enhanced. In assessing the dynamics of the dense gas, we find the HCN(1-0) and HCO+(1-0) emission lines showing multiple components towards regions in the bar ends that correspond to previously identified features in CO emission. These features are co-spatial with peaks of Halpha emission, which highlights that the complex dynamics of this bar end region could be linked to local enhancements in the star formation.
description: 25 pages, 12 figures; accepted for publication in MNRAS
Propulsion in a viscoelastic fluid
Creators: name: Lauga, Eric
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Flagella beating in complex fluids are significantly influenced by viscoelastic stresses. Relevant examples include the ciliary transport of respiratory airway mucus and the motion of spermatozoa in the mucus-filled female reproductive tract. We consider the simplest model of such propulsion and transport in a complex fluid, a waving sheet of small amplitude free to move in a polymeric fluid with a single relaxation time. We show that, compared to self-propulsion in a Newtonian fluid occurring at a velocity U_N, the sheet swims (or transports fluid) with velocity U / U_N = [1+De^2 (eta_s)/(eta) ]/[1+De^2], where eta_s is the viscosity of the Newtonian solvent, eta is the zero-shear-rate viscosity of the polymeric fluid, and De is the Deborah number for the wave motion, product of the wave frequency by the fluid relaxation time. Similar expressions are derived for the rate of work of the sheet and the mechanical efficiency of the motion. These results are shown to be independent of the particular nonlinear constitutive equations chosen for the fluid, and are valid for both waves of tangential and normal motion. The generalization to more than one relaxation time is also provided. In stark contrast with the Newtonian case, these calculations suggest that transport and locomotion in a non-Newtonian fluid can be conveniently tuned without having to modify the waving gait of the sheet but instead by passively modulating the material properties of the liquid.
description: 21 pages, 1 figure