cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Framework for the Eurasian Latin Archive using CLTK and NLTK
Creators: name: Carbé, Emmanuela
name: Giannelli, Nicola
Publisher: name: Zenodo
Year: 2019
Subjects: NLTK
CLTK

description: Aim of the ELA - Eurasian Latin Archive project is to build an open access digital platform of Latin and multilingual texts from medieval and early modern times concerning East Asia. ELA has been first presented in 2017 by Prof. Francesco Stella, Chief Advisor of the project. The start-up phase of ELA took place on March 2018 within the DAS-MeMo project, which has been cofinanced by Regione Toscana. The poster shows our hypotheses to integrate into the platform a tool for linguistic and semantic analysis.
Islands in the Stream of Hawking Radiation
Creators: name: Hollowood, Timothy J.
name: Kumar, S. Prem
name: Legramandi, Andrea
name: Talwar, Neil
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the island formula for the entropy of subsets of the Hawking radiation in the adiabatic limit where the evaporation is very slow. We find a simple concrete `on-shell' formula for the generalized entropy which involves the image of the island out in the stream of radiation, the `island in the stream'. The resulting recipe for the entropy allows us to calculate the quantum information properties of the radiation and verify various constraints including the Araki-Lieb inequality and strong subadditivity.
description: added clarifications and some minor corrections
The fluctuations, under time reversal, of the natural time and the entropy distinguish similar looking electric signals of different dynamics
Creators: name: Varotsos, P. A.
name: Sarlis, N. V.
name: Skordas, E. S.
name: Lazaridou, M. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that the scale dependence of the fluctuations of the natural time itself under time reversal provides a useful tool for the discrimination of seismic electric signals (critical dynamics) from noises emitted from man made sources as well as for the determination of the scaling exponent. We present recent data of electric signals detected at the Earth's surface, which confirm that the value of the entropy in natural time as well as its value under time reversal are smaller than that of the entropy of a "uniform" distribution.
description: 29 pages including 24 figure and 1 Table
title: Faustae Acclamationes in Rever. ... viri Dn. Raphaelis Eglini Iconii Tiguri Docturae honores
Creators: name: Schönfeld, Gregor
Publisher: name: Philipps-Universität Marburg
Year: 2024
Subjects: Festschrift
Generalities, Science
Allgemeines, Wissenschaft

description: Elektronische Reproduktion von: Faustæ Acclamationes In Rever. ... Virj Dn. Raphaelis Eglini Iconii Tigur[i] Docturæ honores ... Diribitore ... Gregorio Schonfeldio ... tributos. - Marpurgi : E Typographei Guolgangi Kezelii, M.DC.VII. - 8 ungezählte Seiten ; 4°. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 6. - 
Werktitel: Faustae Acclamationes in Rever. ... viri Dn. Raphaelis Eglini Iconii Tiguri Docturae honores. - 
Anmerkung: Titel- und Schlussvignette. - 
Titeleinrahmung . - (Hassiaca)

Digitalisiert 2024
Static and dynamic magnetic properties of honeycomb lattice antiferromagnets Na$_{2}M_{2}$TeO$_{6}$, $M$ = Co and Ni
Creators: name: Samarakoon, Anjana M.
name: Chen, Qiang
name: Zhou, Haidong
name: Garlea, V. Ovidiu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic structures and spin dynamics of Na$_{2}$Co$_{2}$TeO$_{6}$ and Na$_{2}$Ni$_{2}$TeO$_{6}$ are investigated by means of elastic and inelastic neutron scattering measurements and the results are discussed in the context of a generalized Kitaev-Heisenberg model on honeycomb lattice with strong spin-orbit coupling. The large number of parameters involved in the Hamiltonian model are evaluated by using an iterative optimization algorithm capable of extracting model solutions and simultaneously estimating their uncertainty. The analyses establish that both Co$^{2+}$ ($d^7$) and Ni$^{2+}$ ($d^8$) antiferromagnets realize bond-dependent anisotropic nearest-neighbor interactions, and support the theoretical predictions for the realization of Kitaev physics in 3$d$ electron systems with effective spins $S$=1/2 and $S$=1. Furthermore, by studying the Na-doped system Na$_{2.4}$Ni$_{2}$TeO$_{6}$, we show that the control of Na content can provide an effective route for fine tuning the magnetic lattice dimensionality, as well as to controlling the bond-dependent anisotropic interactions.
description: Phys Rev B , in press , 2021
title: Zur Frühlings-Prüfung im kurfürstlichen Gymnasium am 1ten und 2ten im April ladet alle Gönner und Freunde der Jugend ergebenst ein der Rector J.W. Faber.
Creators: name: Faber, Johann Wilhelm
Publisher: name: Philipps-Universität Marburg
Year: 2024
Subjects: Personalschrift
Generalities, Science
Allgemeines, Wissenschaft

description: Elektronische Reproduktion von: Zur Frühlings-Prüfung im kurfürstlichen Gymnasium am 1ten und 2ten im April ladet alle Gönner und Freunde der Jugend ergebenst ein der Rector J.W. Faber. Vorher gehen einige Nachrichten über den jüngst verstorbenen Rector W. Endemann. - Hersfeld : gedruckt bey J.D. Mohr, 1805. - 16 Seiten ; 4°. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 6. - (Hassiaca)

Digitalisiert 2024
Direct simulation for a homogenous gas
Creators: name: Karabulut, Hasan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A probabilistic analysis of the direct simulation of a homogeneous gas is given. A hierarchy of equations similar to the BBGKY hierarchy for the reduced probability densities is derived. By invoking the molecular chaos assumption, an equation similar to the Boltzmann equation for the single particle probability density and the corresponding H-theorem is derived.
A study of archivists' perceptions of reference service
Creators: name: Kiemele, Sandra
Publisher: name: University of British Columbia
Year: 2010

description: To identify the relationships between particular characteristics of archivists and their perceptions of users and reference service, data was collected from two surveys distributed to two survey populations of archivists. One survey asked archivists' own perceptions of reference service, the other asked archivists' perceptions of their colleagues' perceptions of reference service. Five hypotheses were developed, drawing upon models of reference process from the literature of library science and upon ideas expressed by authors of archival reference service literature. These hypotheses are that archivists' perceptions of reference service relate to 1) the type of repository with which archivists are most familiar, 2) the functions (e.g. arrangement and description) with which archivists are most familiar, 3) the forms of records (such as government records) with which archivists are most familiar, 4) the amount of time archivists have spent in reference service, and 5) the education level of archivists. The results suggest that the type of repository with which the archivist is most familiar relates to his or her perceptions of reference service. While the other categories also exhibited significant relationships, the overall analysis of the results of the other categories was less interesting than the results obtained from the category regarding the type of repository. Determining the existence of such relationships was the preliminary investigation upon which to base further research. The results of this study suggest that likely areas for further examination of this topic are the methods of reference service used in particular repositories.
Σύνθεση θειοσακχάρων και θειονουκλεοζιτών:
Creators: name: Κωτούλας, Στέφανος Σ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: 4-Θειοαπιόζη
Απιοθειονουκλεοζίτης
Αντίδραση Pummerer
4-thioapiose
Apiothionucleoside
Pummerer reaction

description: Αναπτύχθηκε η σύνθεση νέων θειοσακχαρικών και θειονουκλεοζιτικών παραγώγων, που φέρουν τη 4-θειοαπιόζη ή το 3’-δεοξυανάλογό της ως χαρακτηριστική δομική υπομονάδα. Ως πρώτη ύλη χρησιμοποιήθηκε η αραβινόζη και με στερεοειδικές αντιδράσεις συντέθηκαν κατάλληλα προστατευμένα σουλφοξείδια, τα οποία με την εφαρμογή των συνθηκών της αντίδρασης Pummerer οδήγησαν στο σχηματισμό των οπτικών αντιπόδων των επιθυμητών ενώσεων. Η συνθετική πορεία περιελάμβανε 10-11 στάδια (ανάλογα με τη δομή του επιθυμητού προϊόντος) και συνολική απόδοση 11-13%. Οι δεοξυαπιοθειονουκλεοζίτες μελετήθηκαν ως προς τη βιολογική τους δραστικότητα και βρέθηκαν ενεργοί κατά συγκεκριμένων τύπων κυττάρων σε συγκεντρώσεις IC50 <10μM.
description: The synthesis of novel thiosugar and thionucleoside derivatives, bearing the characteristic skeleton of 4-thioapiose or its 3’-deoxy-analogue, has been developed. Using arabinose as starting material and performing stereospecific reactions, suitably protected sulfoxides were synthesized, which under Pummerer reaction’s conditions gave both enantiomers of the title compounds. In summary, the synthetic plan was comprised of 10-11 steps (according to the target-molecule) and the total yield was varied 11-13% for each derivative. The deoxyapiothionucleosides were tested for their biological activity and have shown selective cytotoxic effects (with IC50 <10 μM) against specific cancer cell lines.
title: An Herrn Professor Engelbronner, als Er sich mit Jungfer Sabina Daubigny im Frühling 1765. feyerlich verband : vom ersten seiner Freunde in C
Creators: name: Anonym
Publisher: name: Philipps-Universität Marburg
Year: 2024
Subjects: Generalities, Science
Allgemeines, Wissenschaft
Personalschrift

description: Elektronische Reproduktion von: An Herrn Professor Engelbronner, als Er sich mit Jungfer Sabina Daubigny im Frühling 1765. feyerlich verband : vom ersten seiner Freunde in C. - [Cassel] : Gedruckt bey Henrich Schmiedt, Fürstl. Hess. Hofbuchdrucker, [1765]. - 4 ungezählte Seiten ; 4°. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 6. - 
Bemerkungen: Titelvignette. - 
Erscheinungsdatum dem Jahr der Hochzeitsfeier angenommen
. - 
(Hassiaca)

Digitalisiert 2024
Text Guide: Improving the quality of long text classification by a text selection method based on feature importance
Creators: name: Fiok, Krzysztof
name: Karwowski, Waldemar
name: Gutierrez, Edgar
name: Davahli, Mohammad Reza
name: Wilamowski, Maciej
name: Ahram, Tareq
name: Al-Juaid, Awad
name: Zurada, Jozef
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The performance of text classification methods has improved greatly over the last decade for text instances of less than 512 tokens. This limit has been adopted by most state-of-the-research transformer models due to the high computational cost of analyzing longer text instances. To mitigate this problem and to improve classification for longer texts, researchers have sought to resolve the underlying causes of the computational cost and have proposed optimizations for the attention mechanism, which is the key element of every transformer model. In our study, we are not pursuing the ultimate goal of long text classification, i.e., the ability to analyze entire text instances at one time while preserving high performance at a reasonable computational cost. Instead, we propose a text truncation method called Text Guide, in which the original text length is reduced to a predefined limit in a manner that improves performance over naive and semi-naive approaches while preserving low computational costs. Text Guide benefits from the concept of feature importance, a notion from the explainable artificial intelligence domain. We demonstrate that Text Guide can be used to improve the performance of recent language models specifically designed for long text classification, such as Longformer. Moreover, we discovered that parameter optimization is the key to Text Guide performance and must be conducted before the method is deployed. Future experiments may reveal additional benefits provided by this new method.
description: This is the reviewed and accepted for publication version of the article by the IEEE Access Journal. One of the important modifications is publication of the code along with the paper. The code can be used to apply Text Guide to a data set of ones choice. The code is available at: https://github.com/krzysztoffiok/TextGuide
Metric Operators for Quasi-Hermitian Hamiltonians and Symmetries of Equivalent Hermitian Hamiltonians
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a simple proof of the fact that every diagonalizable operator that has a real spectrum is quasi-Hermitian and show how the metric operators associated with a quasi-Hermitian Hamiltonian are related to the symmetry generators of an equivalent Hermitian Hamiltonian.
description: 6 pages, published version
Clifford Circuit Optimization with Templates and Symbolic Pauli Gates
Creators: name: Bravyi, Sergey
name: Shaydulin, Ruslan
name: Hu, Shaohan
name: Maslov, Dmitri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The Clifford group is a finite subgroup of the unitary group generated by the Hadamard, the CNOT, and the Phase gates. This group plays a prominent role in quantum error correction, randomized benchmarking protocols, and the study of entanglement. Here we consider the problem of finding a short quantum circuit implementing a given Clifford group element. Our methods aim to minimize the entangling gate count assuming all-to-all qubit connectivity. First, we consider circuit optimization based on template matching and design Clifford-specific templates that leverage the ability to factor out Pauli and SWAP gates. Second, we introduce a symbolic peephole optimization method. It works by projecting the full circuit onto a small subset of qubits and optimally recompiling the projected subcircuit via dynamic programming. CNOT gates coupling the chosen subset of qubits with the remaining qubits are expressed using symbolic Pauli gates. Software implementation of these methods finds circuits that are only 0.2% away from optimal for 6 qubits and reduces the two-qubit gate count in circuits with up to 64 qubits by 64.7% on average, compared with the Aaronson-Gottesman canonical form.
title: Quel impact des émotions et de la régulation chez les élèves ?
title: Quel impact des émotions et de la régulation chez les élèves ?
titleType: AlternativeTitle
Creators: name: Meyer, Tiziana
Publisher: name: Unknown
Year: 0
Subjects: subject: émotions
subject: émotions d’accomplissement
subject: AEQ
subject: régulation émotionnelle
subject: réévaluation
subject: suppression
subject: ERQ
subject: évaluations
subject: notes
subject: élèves
subject: Secondaire I
subject: Raccordement 1

description: Ce mémoire investigue les corrélations entre les stratégies de régulation émotionnelle explicites, les émotions d’accomplissement et les performances d’élèves de Raccordement I lors d’évaluations. La première partie est consacrée à la définition des émotions d’accomplissement, des stratégies de régulation explicites (réévaluation cognitive et suppression expressive) et aux enjeux que constituent les évaluations (TS et ETA) au Secondaire I. La deuxième partie se focalise sur une analyse quantitative des données récoltées sur une période de 6 mois auprès de 21 élèves à l’aide de deux questionnaires : le ERQ et le AEQ. La troisième partie examine, grâce à une analyse de régression et une analyse de variance, les effets possibles entre l’utilisation des techniques de régulation émotionnelle telles que la réévaluation et la suppression, les émotions d’accomplissement et les notes obtenues tout au long de la recherche. Enfin, une dernière partie montre la relevance de la réévaluation et des émotions positives lors des évaluations.
Riemann Tensor and Gauss-Bonnet density in Metric-Affine Cosmology
Creators: name: Iosifidis, Damianos
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analytically derive the covariant form of the Riemann (curvature) tensor for homogeneous Metric-Affine Cosmologies. That is, we present, in a Cosmological setting, the most general covariant form of the full Riemann tensor including also its non-Riemannian pieces which are associated to spacetime torsion and non-metricity. Having done so we also compute a list of the curvature tensor by-products such as Ricci tensor, homothetic curvature, Ricci scalar, Einstein tensor etc. Finally we derive the generalized Metric-Affine version of the usual Gauss-Bonnet density in this background and demonstrate how under certain circumstances the latter represents a total derivative term.
description: 15 pages, no figures
Η ενδικοφανής προσφυγή
Creators: name: Κυβέλος, Σωτήριος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Ενδικοφανής
Υποχρεωτική διοικητική προσφυγή
Εναλλακτική μορφή έννομης προστασίας
Επιτάχυνση διοικητικής δίκης
Οbligatory administrative appeal
Αdministrative trial
Εffective legal redress

description: Στην παρούσα διατριβή έγινε μια ανάλυση του συστήματος των ενδικοφανών προσφυγών στην ελληνική έννομη τάξη και της θέσης του στο σύστημα απονομής έννομης προστασίας. Ζητούμενο από τις αναλύσεις που έγιναν ήταν η ανάδειξη της εγγενούς αποτελεσματικότητας της επίμαχης διοικητικής προσφυγής ώστε να αποτελέσει εναλλακτικό μέσο αποτελεσματικής έννομης προστασίας για τον διοικούμενο. Απαραίτητη προϋπόθεση για την ανάδειξη της λειτουργικότητας της εν λόγω προσφυγής είναι η διευκρίνιση αφενός του νομικού καθεστώτος της και αφετέρου της σχέσης της με τη διοικητική δίκη. Υπό το πρίσμα της θέσης της ενδικοφανούς προσφυγής ως μέσου έννομης προστασίας αντιμετωπίστηκε και ο επίκαιρος προβληματισμός ως προς το αν θα ήταν σκόπιμη η γενίκευσή της σε όλες τις διοικητικές διαφορές ή αν θα ήταν περισσότερο σκόπιμη η πραγματοποίηση στοχευμένων νομοθετικών παρεμβάσεων σε ειδικές περιπτώσεις. Ανεξαρτήτως της λύσης που θα επιλεχθεί, η ανάγκη μεταρρύθμισης του συστήματος των ενδικοφανών προσφυγών αποτελεί βασικό πρόταγμα της σύγχρονης εποχής που υπαγορεύεται από δύο θεμελιώδεις ανάγκες: την ανάγκη παροχής άμεσης και αποτελεσματικής έννομης προστασίας στον διοικούμενο και την ανάγκη για επιτάχυνση της διοικητικής δίκης και αποσυμφόρησης των διοικητικών δικαστηρίων.
description: Within the present thesis, an analysis was conducted on the system of obligatory administrative appeals ('action-like petitions') in the Greek legal order and of its place within the framework of legal redress. The analyses carried out aimed at highlighting the inherent efficiency of the administrative appeal at issue as an alternative means of effective legal redress for the individual citizen. A prerequisite for highlighting the functionality of this legal remedy is the clarification of its legal status, on the one hand, and its relationship with the administrative trial, on the other hand. The current debate of whether it would be fruitful to generalise the application of administrative appeals in all administrative disputes or if it would be more appropriate to carry out targeted legislative interventions in specific cases, was examined by viewing the obligatory administrative appeal as a means of legal redress. Regardless of the solution to be chosen, the need to reform the system of obligatory administrative appeal is a key project of modern times dictated by two fundamental needs: the need to provide prompt and effective redress to the citizen and the need to accelerate administrative proceedings by decreasing the work-load of administrative courts.
title: Quod cedat Feliciter! Serenissimo ac Potentissimo, Electore Brandenburgico, Domino suo Clementissimo, gratiosissime concedente Ex Facultatis suæ Decreto Johannes Fridericus Rhetius ...
Creators: name: Rhetz, Johann
Publisher: name: Philipps-Universität Marburg
Year: 2024
Subjects: Festschrift
Generalities, Science
Allgemeines, Wissenschaft

description: Elektronische Reproduktion von: Quod cedat Feliciter! Serenissimo ac Potentissimo, Electore Brandenburgico, Domino suo Clementissimo, gratiosissime concedente Ex Facultatis suæ Decreto Johannes Fridericus Rhetius, Jurium Doctor, Pandectarum Professor Ordinarius, ... Decanus, ... Virvm Nobilem, Clarissimum ... Dn. Johannem Ernst, Hasso-Cassellanum J.U.C. Doctoris ... In Basilica Sacra Majore A.O.R. MDCLXIX. VI. Kalendar Iunii solenniter decorabit, ... solenia spectanda Serenissimorvm ... Magnificum Academiæ Rectorem Dn. Johannem Risselmannum S.S. Theol. Doct. ...iurisprudentiæ bene cupiunt, qua decet, humanitate invitat. - [Frankfurt] : [Verlag nicht ermittelbar], [1669]. - 8 ungezählte Seiten ; 4°. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 6. - 
Bemerkungen: Erscheinungsdatum nach der Datierung im Text angenommen. - 
Datum im Text in neulateinischen Zahlzeichen mit gespiegeltem c . - 
(Hassiaca)

Digitalisiert 2024
title: Eucharistica memoria viri quoad vixit experientissimi nunc coelites inter beati Arthuris Conradi Ernstingii philosophiae ac medicinae doctoris atque ... practici Hagenburgensis qui Antequam III. Id. Septembr. MDCCLXVIII. [...]
Creators: name: Anonym
Publisher: name: Philipps-Universität Marburg
Year: 2024
Subjects: Festschrift
Hochschulschrift
Generalities, Science
Allgemeines, Wissenschaft

description: Elektronische Reproduktion von: Evcharistica Memoria Viri Qvoad Vixit Experientissimi Nvnc Coelites Inter Beati Arthvris Conradi Ernstingii Philosophiae Ac Medicinae Doctoris Atqve ... Practici Hagenbvrgensis Qvi Anteqvam III. Id. Septembr. MDCCLXVIII. Aetatis LX. Coelebs Diem Obiit ... Omnem Librariam Svpellectilem Academiae Rinteliensis Bibliothecae Legavit ... Ad Perennem Benefici Testatoris Memoriam ... Ex Academici Senatvs Consvlto A.D. XII. Kal. Ivlii MDCCLXIX. S. A Bibliothecae Praefecto. - Rintelii : Typis I.G. Enax A.T., [1769]. - 8 ungezählte Seiten. - 
Standort: Universität Marburg, Universitätsbibliothek. - 
Signatur: VIII B 331 db, 6. - 
Werktitel: Eucharistica memoria viri quoad vixit experientissimi nunc coelites inter beati Arthuris Conradi Ernstingii philosophiae ac medicinae doctoris atque ... practici Hagenburgensis qui Antequam III. Id. Septembr. MDCCLXVIII. aetatis LX. coelebs diem obiit ... omnem librariam supellectilem Academiae Rinteliensis Bibliothecae legavit ... ad perennem benefici testatoris memoriam ... ex Academici Senatus Consulto A.D. XII. Kal. Iulii MDCCLXIX. S. A Bibliothecae praefecto. - 
Anmerkung: Datierung im Haupttitel und im Kolophon in neulateinischen Zahlzeichen mit gespiegeltem "c". - 
Erscheinungsjahr nach der Datierung im Haupttitel. - 
Gedächtnisschrift . - (Hassiaca)

Digitalisiert 2024
Ultra-low frequency gravitational waves from cosmological and astrophysical processes
Creators: name: Moore, Christopher J.
name: Vecchio, Alberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gravitational waves (GWs) at ultra-low frequencies (${\lesssim 100\,\mathrm{nHz}}$) are key to understanding the assembly and evolution of astrophysical black hole (BH) binaries with masses $\sim 10^{6}-10^{9}\,M_\odot$ at low redshifts. These GWs also offer a unique window into a wide variety of cosmological processes. Pulsar timing arrays (PTAs) are beginning to measure this stochastic signal at $\sim 1-100\,\mathrm{nHz}$ and the combination of data from several arrays is expected to confirm a detection in the next few years. The dominant physical processes generating gravitational radiation at $\mathrm{nHz}$ frequencies are still uncertain. PTA observations alone are currently unable to distinguish a binary BH astrophysical foreground from a cosmological background due to, say, a first order phase transition at a temperature $\sim 1-100\,\mathrm{MeV}$ in a weakly-interacting dark sector. This letter explores the extent to which incorporating integrated bounds on the ultra-low frequency GW spectrum from any combination of cosmic microwave background, big bang nucleosynethesis or astrometric observations can help to break this degeneracy.
description: 4 pages and 4 figures, plus methods sections
An absorption origin for the soft excess in Seyfert 1 AGN
Creators: name: Middleton, M. J.
name: Done, C.
name: Gierlinski, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) The soft excess seen in the X-ray spectra of many high mass accretion rate AGN can be well modelled by reflection from a partially ionised accretion disc. However, the derived parameters are often extreme, both in terms of the underlying spacetime and the reflection geometry, and these models require that the disc is far from hydrostatic equilibrium. An alternative model uses similarly partially ionised, velocity smeared material but seen in absorption, though again the derived velocities are extreme, requiring magnetic driving (in the jet?) rather than a simple line driven disc wind. We find that while both models give comparably good fits to XMM--Newton data, we favour the absorption model as, unlike reflection, all the derived spectral indices are soft. This is as expected by analogy with the correspondingly high mass accretion rate stellar mass black holes. Furthermore, these X-ray spectra are consistent with a one--to--one mapping between AGN type and spectral state, with NLS1's having softer spectra corresponding to the very high state, while the broad line AGN have Gamma~2 as expected for the high/soft state. We also use the simultaneous OM data to derive the ratio of disc to total accretion power which is another tracer of spectral state in X-ray binaries. This does not always show that the disc in NLS1's contributes less than 80 per cent of the total power, as expected for a very high state. We suggest that this is an artifact of the standard disc models used to determine the disc luminosity in our fits. The disc seen in the very high state of black hole binaries is often observed to be distorted from the standard shape, and a similar effect in NLS1's could recover the correspondance between black hole binary spectral state and AGN type.
description: 12 pages, 12 figures, submitted to MNRAS
Leveraging the ALMA Atacama Compact Array for Cometary Science: An Interferometric Survey of Comet C/2015 ER61 (PanSTARRS) and Evidence for a Distributed Source of Carbon Monosulfide
Creators: name: Roth, Nathan X.
name: Milam, Stefanie N.
name: Cordiner, Martin A.
name: Bockelée-Morvan, Dominique
name: Biver, Nicolas
name: Boissier, Jérémie
name: Lis, Dariusz C.
name: Remijan, Anthony J.
name: Charnley, Steven B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the first survey of molecular emission from cometary volatiles using standalone Atacama Compact Array (ACA) observations of the Atacama Large Millimeter/Submillimeter Array (ALMA) toward comet C/2015 ER61 (PanSTARRS) carried out on UT 2017 April 11 and 15, shortly after its April 4 outburst. These measurements of HCN, CS, CH$_3$OH, H$_2$CO, and HNC (along with continuum emission from dust) probed the inner coma of C/2015 ER61, revealing asymmetric outgassing and discerning parent from daughter/distributed source species. This work presents spectrally integrated flux maps, autocorrelation spectra, production rates, and parent scale lengths for each molecule, and a stringent upper limit for CO. HCN is consistent with direct nucleus release in C/2015 ER61, whereas CS, H$_2$CO, HNC, and potentially CH$_3$OH are associated with distributed sources in the coma. Adopting a Haser model, parent scale lengths determined for H$_2$CO (L$_p$ $\sim$ 2200 km) and HNC (L$_p$ $\sim$ 3300 km) are consistent with previous work in comets, whereas significant extended source production (L$_p$ $\sim$ 2000 km) is indicated for CS, suggesting production from an unknown parent in the coma. The continuum presents a point-source distribution, with a flux density implying an excessively large nucleus, inconsistent with other estimates of the nucleus size. It is best explained by the thermal emission of slowly-moving outburst ejectas, with total mass 5--8 $\times$ 10$^{10}$ kg. These results demonstrate the power of the ACA for revealing the abundances, spatial distributions, and locations of molecular production for volatiles in moderately bright comets such as C/2015 ER61.
Temperature dependence of the angle resolved photoemission spectra in the undoped cuprates: self-consistent approach to the t-J-Holstein model
Creators: name: Cataudella, V.
name: De Filippis, G.
name: Mishchenko, A. S.
name: Nagaosa, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We develop a novel self-consistent approach for studying the angle resolved photoemission spectra (ARPES) of a hole in the t-J-Holstein model giving perfect agreement with numerically exact Diagrammatic Monte Carlo data at zero temperature for all regimes of electron-phonon coupling. Generalizing the approach to finite temperatures we find that the anomalous temperature dependence of the ARPES in undoped cuprates is explained by cooperative interplay of coupling of the hole to magnetic fluctuations and strong electron-phonon interaction.
description: 5 pages, 4 figures
The XMM-SSC survey of hard-spectrum XMM-Newton sources 1: optically bright sources
Creators: name: Page, M. J.
name: Lehmann, I.
name: Boller, Th.
name: Watson, M. G.
name: Dwelly, T.
name: Hess, S.
name: Matute, I.
name: Loaring, N. S.
name: Rosen, S.
name: Ziaeepour, H
name: Schwope, A.
name: Lamer, G.
name: Carrera, F. J.
name: Tedds, J.
name: Della Ceca, R.
name: Severgnini, P.
name: McMahon, R. G.
name: Yuan, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present optical and X-ray data for a sample of serendipitous XMM-Newton sources that are selected to have 0.5-2 keV vs 2-4.5 keV X-ray hardness ratios which are harder than the X-ray background. The sources have 2-4.5 keV X-ray flux >= 10^-14 cgs, and in this paper we examine a subsample of 42 optically bright (r < 21) sources; this subsample is 100 per cent spectroscopically identified. All but one of the optical counterparts are extragalactic, and we argue that the single exception, a Galactic M star, is probably a coincidental association. The X-ray spectra are consistent with heavily absorbed power laws (21.8 < log NH < 23.4), and all of them appear to be absorbed AGN. The majority of the sources show only narrow emission lines in their optical spectra, implying that they are type-2 AGN. Only a small fraction of the sources (7/42) show broad optical emission lines, and all of these have NH < 10^23 cm^-2. This implies that ratios of X-ray absorption to optical/UV extinction equivalent to > 100 times the Galactic gas-to-dust ratio are rare in AGN absorbers (at most a few percent of the population), and may be restricted to broad absorption-line QSOs. Seven objects appear to have an additional soft X-ray component in addition to the heavily absorbed power law. We consider the implications of our results in the light of the AGN unified scheme. We find that the soft components in narrow-line objects are consistent with the unified scheme provided that > 4 per cent of broad-line AGN have ionised absorbers that attenuate their soft X-ray flux by >50 per cent. In at least one of the X-ray absorbed, broad-line AGN in our sample the X-ray spectrum requires an ionised absorber, consistent with this picture.
description: accepted for publication in MNRAS
Striking intraneuronal neurofilament inclusions restricted to the locus coeruleus in a patient with Creutzfeldt-Jakob disease
Creators: name: Leitner, Felix
name: Klotz, Sigrid
name: Ornig, Karoline
name: Weis, Serge
name: Gelpi, Ellen
Publisher: name: Free Neuropathology
Year: 2024
Subjects: Neurofilament inclusions
Locus coeruleus
Neurofilament
Neuronal cytoplasmic inclusion
Creutzfeldt-Jakob disease

description: Free Neuropathology, Bd. 5 (2024)
Supplementary Materials from Fossils, fish and tropical forests: prehistoric human adaptations on the island frontiers of Oceania
Creators: name: Roberts, Patrick
name: Douka, Katerina
name: Tromp, Monica
name: Bedford, Stuart
name: Hawkins, Stuart
name: Bouffandeau, Laurie
name: Ilgner, Jana
name: Lucas, Mary
name: Marzo, Sara
name: Hamilton, Rebecca
name: Ambrose, Wallace
name: Bulbeck, David
name: Luu, Sindy
name: Shing, Richard
name: Gosden, Chris
name: Summerhayes, Glenn
name: Spriggs, Matthew
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Science
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60801 Animal Behaviour

description: Supplementary Texts, Figures, Tables, and References
A mechanism for unipolar resistance switching in oxide non-volatile memory devices
Creators: name: Sanchez, M. J.
name: Rozenberg, M. J.
name: Inoue, I. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Building on a recently introduced model for non-volatile resistive switching, we propose a mechanism for unipolar resistance switching in metal-insulator-metal sandwich structures. The commutation from the high to low resistance state and back can be achieved with successive voltage sweeps of the same polarity. Electronic correlation effects at the metal-insulator interface are found to play a key role to produce a resistive commutation effect in qualitative agreement with recent experimental reports on binary transition metal oxide based sandwich structures.
description: 4 pages, 2 figures
Dodicesima giornata di studio Ettore Funaioli – 20 luglio 2018
Creators: name: Parenti Castelli, Vincenzo
name: Rivola, Alessandro
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2019
Subjects: ING-IND/13 Meccanica applicata alle macchine

description: In questo volume sono raccolte le memorie presentate in occasione della “Dodicesima Giornata di Studio Ettore Funaioli”, che si è svolta il 20 luglio 2018 presso la Scuola di Ingegneria e Architettura dell’Alma Mater Studiorum – Università di Bologna. La Giornata è stata organizzata dagli ex allievi del Prof. Ettore Funaioli con la collaborazione del DIN – Dipartimento di Ingegneria Industriale e della Scuola di Ingegneria e Architettura dell’Alma Mater Studiorum – Università di Bologna, e con il patrocinio dell’Accademia delle Scienze dell’Istituto di Bologna e del GMA – Gruppo di Meccanica Applicata.
Perspektiven auf Verstehen und Sinn von Symbolen in der Lebenswelt
Creators: name: Pleyer, Michael
name: Galuschek, Anita
Publisher: name: Zeitschrift für Theoretische Soziologie
Year: 2016

description: Die alltägliche Lebenswelt in ihrer multiperspektivischen Schichtung als Vorwelt, Folgewelt, Alltagswelt, Mitwelt, Umwelt und Kulturwelt ist der Ort, an dem Wirkbeziehungen mit anderen Menschen eingegangen und Erfahrungen und Erlebnisse gemacht werden. Alltäglichkeit und fraglose Gegebenheit machen diese Lebenswelt als soziale Wirklichkeit auf eigentümliche Weise invariabel. Indem sie als ,immer schon da‘ betrachtet wird, kann sie nicht als Ganzes begriffen werden, da sie nur mittelbar – durch die Perspektive der eigenen sozialen und kulturellen Biographie der Erfahrungen und Erlebnisse – wahrgenommen wird.
description: Zeitschrift für Theoretische Soziologie, 2016: Sonderband №3 // Kooperation, Sozialität und Kultur. Michael Tomasellos Arbeiten in der soziologischen Diskussion
Carlos Kölbl, Günter Mey (Hg.) (2014): Gesellschaftsverständnis. Entwicklungspsychologische Perspektiven
Creators: name: Schülein, Johann August
Publisher: name: Zeitschrift für Theoretische Soziologie
Year: 2015

description: Zeitschrift für Theoretische Soziologie, Bd. 4 Nr. 2 (2015): Grundriss einer integrativen Theorie der Gesellschaft I
Seesaw determination of the dark matter relic density
Creators: name: Coy, Rupert
name: Gupta, Aritra
name: Hambye, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we show that in the usual type-I seesaw framework, augmented solely by a neutrino portal interaction, the dark matter (DM) relic density can be created through freeze-in in a manner fully determined by the seesaw interactions and the DM particle mass. This simple freeze-in scenario, where dark matter is not a seesaw state, proceeds through slow, seesaw-induced decays of Higgs, $W$ and $Z$ bosons. We identify two scenarios, one of which predicts the existence of an observable neutrino line.
description: 6 pages, 1 figure
Superconducting state of excitonic insulator
Creators: name: Batyev, E. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A state of an excitonic insulator with the electric current is studied. Initially, in the metallic phase, the electrons and holes are assumed to be moving in the opposite directions, so as the electric current exists. This state is supported by an external condition (the specimen is in an electric circuit with the current). When the temperature decreases, the transition to the ordering state due to formation of the electron--hole pairs is possible (similar to the ordinary state of the excitonic insulator). The properties of the state at zero temperature are investigated. The spectrum of elementary excitations has a gap, and so the conclusion can be made that obtained state is superconducting one. Thus, depending on the external conditions, excitonic insulator behaves itself like the insulator or superconductor. That is correct in the limit of strong overlapping of the electron--hole pairs.
description: 4 pages
Unconventional pairing in few-fermion systems tuned by external confinement
Creators: name: Dobrzyniecki, Jacek
name: Orso, Giuliano
name: Sowiński, Tomasz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the ground-state properties of a two-component one-dimensional system of a few ultra-cold fermions with attractive interactions. We show that, by ramping up an external potential barrier felt by one of the components, it is possible to induce regions of exotic superfluid phases, characterized by a tunable finite net momentum of the Cooper pair, without changing the overall spin populations. We show that these phases, which are the few-body analogs of the celebrated Fulde-Ferrell-Larkin-Ovchinnikov state, can be distinguished by analyzing a specific two-particle correlation encoded in the noise correlation function. Our theoretical results can be addressed in current experiments with cold atoms confined in spin-selective optical traps.
description: 11 pages, 7 figures
title: L'exclusion par les pairs chez les adolescents et les facteurs favorisant la construction des groupes :
title: le point de vue des élèves
titleType: Subtitle
title: L'exclusion par les pairs chez les adolescents et les facteurs favorisant la construction des groupes :
titleType: AlternativeTitle
Creators: name: Menoud, Thibaut
Publisher: name: Unknown
Year: 0
Subjects: subject: exclusion par les pairs
subject: construction des groupes
subject: adolescent
subject: élève
subject: effet de groupe
subject: justifications de l’exclusion

description: Ce travail porte sur l’exclusion par les pairs chez les adolescents et les facteurs favorisant la construction des groupes de pairs, en se concentrant sur le point de vue des élèves et leur ressenti. L’exclusion est une forme de violence sociale et fait partie de la victimisation par les pairs. Elle est à la fois un état et un processus. Elle dépend beaucoup du ressenti de la personne et se renforce si elle est répétée dans le temps. S’intéresser à l’origine de l’exclusion, c’est aussi se pencher sur les facteurs de la formation des groupes. L’adolescent a besoin d’un groupe de pairs (et de l’amitié) pour construire sa personnalité et se développer. L’exclusion peut s’inscrire dans le processus de construction des groupes : c’est en excluant une personne ou un groupe que le groupe devient groupe. Deux hypothèses sont proposées pour répondre à la question de recherche : l’adolescent serait prêt à exclure sous la pression du groupe et serait capable de justifier lui-même cette exclusion. Les données ont été récoltées grâce à un questionnaire distribué aux élèves. La première hypothèse n’a pas été validée : les élèves ne semblent pas être très sensibles à leur groupe de pairs. La deuxième hypothèse, au contraire, est validée. Les élèves seraient notamment prêts à exclure une autre personne lorsqu’ils n’apprécient pas son attitude ou ses manières ou lorsque cette personne leur a fait du mal à eux ou à d’autres personnes par le passé. Les intérêts ne sont pas un facteur important dans la construction des groupes, tandis que la langue peut constituer une barrière importante pour intégrer un groupe. Lorsqu’ils sont exclus, les adolescents ressentent fortement de la tristesse et de la honte. La baisse de l’estime de soi, lors d’une exclusion, est également confirmée.
The evaluation of gender income inequality by means of the Gini index decomposition
Creators: name: Costa, Michele
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2019
Subjects: SECS-S/01 Statistica

description: This paper proposes to measure and to evaluate gender gaps and gender inequalities by means of the decomposition of an inequality measure. A three-terms decomposition of the Gini index is applied, thus allowing to take into account also the role of overlapping between female and male subpopulations. We develop an unified framework for the evaluation of gender gap, linking traditional measures, based on subgroups income means, to the approach related to inequality decomposition, and showing how overlapping component represents a key issue in gender gap analysis. An analysis of the income distribution of the Italian households shows how gender gaps represent a major source of inequality, without particular improvements during the last 20 years.
Analysis of a murine lymphocyte proliferation-associated antigen (MALA-2) : the murine homolog of the human ICAM-1 molecule
Creators: name: Baker, Brett Hugh James
Publisher: name: University of British Columbia
Year: 2010

description: MALA-2 (Murine Lymphocyte Activated Antigen-2) is a murine cell surface antigen that is detected at high concentration on activated, proliferating lymphocytes, but only weakly on resting lymphocytes. It is thought to play an important role in lymphocyte activation since the rat monoclonal antibody YN1/1.7.4 which recognizes MALA-2 is capable of inhibiting the mixed lymphocyte reaction. Considering the central role of lymphocyte activation to the generation and maintenance of the immune response, I undertook the purification and biochemical characterization of MALA-2. In these studies, MALA-2 was isolated and purified to homogeneity using immobilized YN1/1.7.4 monoclonal antibody and sodium docecylsulphate-polyacrylamide gel electrophoresis. Biochemical characterization studies revealed that MALA-2 is a Mr 95-100 kD glycoprotein containing a protein backbone of approximately 66 kD, and N-linked carbohydrate chains amounting to a Mr of approximately 35 kD. Two dimensional gel electrophoresis suggested that MALA-2 has an isoelectric point of 4.9. Although it was previously suspected that MALA-2 might be associated with the transferrin receptor on the cell surface, this was shown not to be the case on NS-1 cells. Additionally, ³²P-orthophosphate labelling of MALA-2 on NS-1 or MBL-2 cells could not be detected. Finally, the partial amino acid sequence of MALA-2 was determined by sequencing trypsin-generated peptides from purified MALA-2. Computer-assisted homology comparisons of the MALA-2 partial amino acid sequences with other known sequences showed that MALA-2 shared its most consistent homology with a class of proteins known as the immunoglobulin superfamily. Subsequent to this study, the partial amino acid sequences obtained within this study were used to construct oligonucleotide probes. These probes were used for the screening of cDNA libraries, facilitating the successful cloning of the MALA-2 gene. This, in turn, resulted in the identification of MALA-2 as the murine counterpart of the human ICAM-1 molecule, a protein known to play a significant role in intercellular adhesion and lymphocyte activation within the immune system. Significantly, results obtained from the biochemical characterization of MALA-2 carried out in this thesis have been confirmed by the subsequent nucleotide sequence data from the cloning of MALA-2.
High resolution simulations of unstable modes in a collisionless disc
Creators: name: Khoperskov, A. V.
name: Just, A.
name: Korchagin, V. I.
name: Jalali, M. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present N-body simulations of unstable spiral modes in a dynamically cool collisionless disc. We show that spiral modes grow in a thin collisionless disk in accordance with the analytical perturbation theory. We use the particle-mesh code SUPERBOX with nested grids to follow the evolution of unstable spirals that emerge from an unstable equilibrium state. We use a large number of particles (up to 40 million particles) and high-resolution spatial grids in our simulations (128^3 cells). These allow us to trace the dynamics of the unstable spiral modes until their wave amplitudes are saturated due to nonlinear effects. In general, the results of our simulations are in agreement with the analytical predictions. The growth rate and the pattern speed of the most unstable bar-mode measured in N-body simulations agree with the linear analysis. However the parameters of secondary unstable modes are in lesser agreement because of the still limited resolution of our simulations.
description: 11 pages, 8 figures in 22 files, A&A in print: Oct. 1st 2007
Inequality and Democracy
Creators: name: Soci, Anna
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2019
Subjects: SECS-P/01 Economia politica

description: The paper is about the political consequences of increasing economic inequality in Western economies. Political theorists have often stressed that
democracy is in troubles when its population is not broadly uniform in income and wealth because unequal economic resources can easily translate into a
surplus of political resources in the hands of the few. The connections between economic inequality and democracy, however, are not easy to detect and the
body of literature is not so large to provide robust assessments of their complex relationship. The aim of this paper is to review the links between the two and to offer some hints on the political relevance of the inequality consequences, if any, on democracy.