cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Production of high-energy μneutrinos from young neutron stars
Creators: name: Burgio, G. F.
name: Link, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Young, rapidly rotating neutron stars could accelerate protons to energies of $\sim 1$ PeV close to the stellar surface, which scatter with x-rays from the stellar surface through the $Δ$ resonance and produce pions. The pions subsequently decay to produce muon neutrinos. We find that the energy spectrum of muon neutrinos consists of a sharp rise at $\sim 50$ TeV, corresponding to the onset of the resonance, above which the flux drops as $ε_ν^{-2}$ up to an upper-energy cut-off that is determined by either kinematics or by the maximum energy to which protons are accelerated. We predict event rates as high as 10-50 km$^{-2}$ yr$^{-1}$ from relatively young, close neutron stars. Such fluxes would be detectable by IceCube.
description: 6 pages, 2 figures, to be published in the proceedings of the CRIS 2006 conference, Catania, Italy, May 29 - June 2, 2006
Role of pairing interaction in neutron rich odd and even Zr nuclei
Creators: name: Bhattacharya, Madhubrata
name: Gangopadhyay, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutron rich Zr nuclei with number of neutrons between $N$= 50 and 82 are investigated in the relativistic mean field approach in co-ordinate space. The resonant levels in the positive energy continuum have been explicitly included in the calculation. Odd nuclei have been treated in the blocking approximation. Our calculation indicates that the dripline for odd mass isotopes is far away from that for the even mass ones. Pairing interaction plays a significant role in stabilizing the even isotopes, thus extending the dripline for them.
Elicitation of noun modifications
Creators: name: Hien, Sansan Claude
name: Galvano, Amber
name: Sande, Hannah
name: Yuan, Mingyu
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: lob

description: Elicitation of some lexical items that have been elicited before. Elicitations of adjectives, numerals, and modifying nouns.
A Systematic Comparison Study on Hyperparameter Optimisation of Graph Neural Networks for Molecular Property Prediction
Creators: name: Yuan, Yingfang
name: Wang, Wenjun
name: Pang, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biomolecules (q-bio.BM)
subject: Machine Learning (cs.LG)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Graph neural networks (GNNs) have been proposed for a wide range of graph-related learning tasks. In particular, in recent years, an increasing number of GNN systems were applied to predict molecular properties. However, a direct impediment is to select appropriate hyperparameters to achieve satisfactory performance with lower computational cost. Meanwhile, many molecular datasets are far smaller than many other datasets in typical deep learning applications. Most hyperparameter optimization (HPO) methods have not been explored in terms of their efficiencies on such small datasets in the molecular domain. In this paper, we conducted a theoretical analysis of common and specific features for two state-of-the-art and popular algorithms for HPO: TPE and CMA-ES, and we compared them with random search (RS), which is used as a baseline. Experimental studies are carried out on several benchmarks in MoleculeNet, from different perspectives to investigate the impact of RS, TPE, and CMA-ES on HPO of GNNs for molecular property prediction. In our experiments, we concluded that RS, TPE, and CMA-ES have their individual advantages in tackling different specific molecular problems. Finally, we believe our work will motivate further research on GNN as applied to molecular machine learning problems in chemistry and materials sciences.
Σύμπλοκα του Cu(I) και του Αg(I) με ετεροκυκλικά θειοαμίδια και αρυλοφωσφίνες: σύνθεση, δομή και βιοδραστικότητα
Creators: name: Βαρνά, Δέσποινα Κωνσταντίνα
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: θειοαμίδια
φωσφίνες
σύμπλοκα χαλκού αργύρου
thioamides
phosphines
copper and silver complexes

description: Στην παρούσα διπλωματική εργασία περιγράφεται η σύνθεση, η μελέτη της δομής και της βιολογικής δράσης σειράς ετεροληπτικών συμπλόκων του μονοσθενούς χαλκού και αργύρου με τριφαινυλοφωσφίνη ή διφωσφίνες (4,5-δις-διφαινυλοφωσφινο-9,9-διμεθυλοξανθένιο και 1,2-δις-(διφαινυλοφωσφινο)βενζολιο) και ορισμένα ετεροκυκλικά θειοαμίδια (4,5-διφαινυλ-1,3-ιμιδάζολο-2-θειόνη, πυριμιδινο-2-θειόνη και 5-μεθυλ-1,3,4-θειαδιαζολο-2-θειόνη). H μελέτη των φωτοφυσικών ιδιοτήτων όλων των ενώσεων με φασματοσκοπία φθορισμού στη στερεά κατάσταση έδειξε ότι όλα σύμπλοκα του Cu(I) παρουσιάζουν έντονο φωταύγεια στη μπλε-πράσινη περιοχή που αποδίδεται σε MLCT διεγερμένες καταστάσεις. Αντίστοιχα, η προέλευση της έντονης εκπομπής στα σύμπλοκα του Ag(Ι) αποδίδεται κυρίως σε διεγερμένες καταστάσεις τύπου LCCT. Πραγματοποιήθηκε μελέτη της αντιβακτηριακής δράσης των συμπλόκων του Ag(I) σε υγρές καλλιέργειες Gram(+) (Bacillus Subtilis, Bacillus cereus, Staphilococcus Aureus) και Gram(-) (Escherichia coli) βακτηρίων, όπου παρατηρήθηκε αξιοσημείωτη αναστολή της ανάπτυξής τους. Μελέτες της αλληλεπίδρασης των συμπλόκων του Ag(I) με το calf-thymus DNA με φασματοσκοπία υπεριώδους, ιξωδομετρία και της ανταγωνιστικής δράσης των συμπλόκων με το αιθίδιο βρωμίδιο έδειξαν ότι ο πιθανότερος τρόπος αλληλεπίδρασης των συμπλόκων με το DNA είναι η παρεμβολή.
description: ligand-centered transitions. Significant in vitro antimicrobial activity against some Gram+ (Bacillus cereus, Bacillus subtilis, Staphilococcus aureus) and Gram- (Escherichia coli) becteria strains has been observed for the Ag(I) complexes. Finally, the interaction of the silver compounds with calf-thymus DND has been monitored via UV-vis spectroscopy, viscosity measurements and their competition with ethidium bromide for the DND intercalations sites, which revealed intercalation as the most likely mode of binding.
Evolution of missed vaccination opportunities over time in two MSF OCB projects
Creators: name: Mancini, Silvia
name: Bachy, Catherine
name: Panunzi, Isabella
name: Barrie, Ibrahim
name: Porta, Ilaria
name: Marie-Eve Burny
name: Herp, Michel Van
Publisher: name: F1000Research
Year: 2015

description: The objectives of this study are to measure the quality of vaccination activities, evaluate the effectiveness of corrective actions over time and to suggest interventions to improve performances of vaccination services.It was concluded that the quality of routine vaccination services in the evaluated structures fell short of MSF aspirations. The evaluations did not have the expected positive impact on the quality of vaccination activities. Results highlight the need to furthermore reinforce routine vaccination activities in MSF supported health structures. These evaluations provide essential information to measure and understand missed immunization opportunities but further works need to be done to improve uptake of recommendations.
Tikekar superdense stars in electric fields
Creators: name: Komathiraj, K.
name: Maharaj, S. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present exact solutions to the Einstein-Maxwell system of equations with a specified form of the electric field intensity by assuming that the hypersurface \{$t$ = constant\} are spheroidal. The solution of the Einstein-Maxwell system is reduced to a recurrence relation with variable rational coefficients which can be solved in general using mathematical induction. New classes of solutions of linearly independent functions are obtained by restricting the spheroidal parameter $K$ and the electric field intensity parameter $α$. Consequently it is possible to find exact solutions in terms of elementary functions, namely polynomials and algebraic functions. Our result contains models found previously including the superdense Tikekar neutron star model [R. Tikekar, \emph{J. Math. Phys.} \textbf{31}, 2454 (1990)] when $K=-7$ and $α=0$. Our class of charged spheroidal models generalise the uncharged isotropic Maharaj and Leach solutions [S. D. Maharaj and P. G. L. Leach, \emph{J. Math. Phys.} \textbf{37}, 430 (1996)]. In particular, we find an explicit relationship directly relating the spheroidal parameter $K$ to the electromagnetic field.
description: 15 pages, To appear in J. Math. Phys
MSF obstetric fistula care programmes - taking stock of MSF experience in the prevention and management of obstetric fistula
Creators: name: NT Tran
name: M Lekkerkerker
name: C Schulte-Hillen
name: E De Plecker
name: N Staderini
name: T Luna
Publisher: name: F1000Research
Year: 2015

description: Obstetric fistula (OF) is an abnormal, acquired communication between the birth canal and adjacent structures like the bladder, rectum and urethra, or combinations of these. 70 to 80% of cases result from what also constitutes one of the main causes of maternal death: unattended obstructed labour. It is estimated that more than 2 million women live with untreated OF, mainly in Asia and sub-Saharan Africa. OF can largely be prevented with skilled birth attendance to ensure adequate management of prolonged and obstructed labour.

Women still acquire and live with OF because health care systems fail to provide accessible quality maternal health care. This includes skilled care at birth, basic and comprehensive emergency obstetric care, affordable treatment of fistula, and family planning. Surgery can be successful in 90-100% of uncomplicated cases, but repair of complex OF can also have a favourable outcome in skilled hands.Wherever identifying the need for basic and comprehensive obstetric services, MSF should be as well aware of a possible hidden need of surgery for women living with an OF – and be prepared to address this unmet need. It is important to reach an agreement on a commonly-used OF classification, protocols, data collection tools, and definition of key indicators as to allow better outcome measurements and comparison of the different OF care models throughout the MSF movement.
On the Evolution of Supermassive Primordial Stars in Cosmological Flows
Creators: name: Woods, Tyrone E.
name: Patrick, Samuel
name: Elford, Jacob S.
name: Whalen, Daniel J.
name: Heger, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Primordial supermassive stars (SMSs) formed in atomic-cooling halos at z ~ 15 - 20 are leading candidates for the seeds of the first quasars. Past numerical studies of the evolution of SMSs have typically assumed constant accretion rates rather than the highly variable flows in which they form. We model the evolution of SMSs in the cosmological flows that create them using the Kepler stellar evolution and implicit hydrodynamics code. We find that they reach masses of 1 - 2 x $10^5 M_{\odot}$ before undergoing direct-collapse to black holes (DCBHs) during or at the end of their main-sequence hydrogen burning, at 1 - 1.5 Myr, regardless of halo mass, spin, or merger history. We also find that realistic, highly-variable accretion histories allow for a much greater diversity of supermassive stellar structures, including in some cases largely thermally relaxed objects, which may provide a significant source of radiative feedback. Our models indicate that the accretion histories predicted for purely atomic-cooling halos may impose a narrow spectrum of masses on the seeds of the first massive quasars, however further studies incorporating realistic feedback will be essential in order to confirm whether or not this holds true in all cases. Our results also indicate that multiple SMSs at disparate stages of evolution can form in these halos, raising the possibility of SMS binaries and supermassive X-ray binaries (SMXBs), as well as DCBH mergers which could be detected by LISA.
description: 14 pages, 4 figures, 1 table, ApJ accepted
Is research published by MSF aligned with strategic priorities and programme activities?
Creators: name: West, Kim
name: Bhargavi Rao
name: Caleo, Grazia M
name: Venis, Sarah
Publisher: name: F1000Research
Year: 2015

description: Médecins Sans Frontières (MSF) yearly publishes around 140 articles in peer-reviewed scientific and medical journals. Rao et al . (2013) assessed how closely publications authored by MSF Operational Centre Amsterdam (OCA) were aligned to MSF’s strategic priorities, however this is unknown for other sections of MSF: OCB (Brussels), OCBA (Barcelona), OCG (Geneva), OCP (Paris). In a retrospective analysis, we aimed to assess if publications authored by the five sections of MSF correlate with MSF’s programmatic activities and strategic priorities.Publications did not align with some of MSF’s major programmatic activities; malaria and maternal health interventions were particularly underrepresented. Conversely, publications on HIV & TB outweighed their programmatic frequency. Publications did align with strategic priorities but the number of HIV/TB publications was far greater than any other topic. Only 3% of articles were on NTDs, compared with 43% for HIV/TB, despite both topics being a priority for all MSF sections. There were few publications on vaccination and surgery. Further analysis of publications incorporating those not led by an MSF author and an analysis of research published across the entire strategic plan period for each MSF section would give a more complete overview as to how research is aligned with MSF strategic priorities. We hope this work will help inform development of MSF research agendas.
Clemente Mazzotta, studioso e filologo. Studi, ricordi e mostra bibliografica a dieci anni dalla scomparsa (2a ed. riveduta e corretta)
Creators: name: Tinti, Paolo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2019
Subjects: L-FIL-LET/10 Letteratura italiana
L-FIL-LET/13 Filologia della letteratura italiana

description: Il volume è nato dall’occasione del pomeriggio di studi e dalla mostra bibliografica “Clemente Mazzotta (1942-2006): Studioso e filologo” organizzati a corollario della cerimonia di intitolazione al Professor Clemente Mazzotta di una sala di lettura della Biblioteca “Ezio Raimondi” del Dipartimento di Filologia classica e Italianistica dell’Università di Bologna. Entrambi gli eventi hanno avuto luogo a Bologna, nella Sala Calcaterra della Biblioteca, il 12 dicembre 2016, pochi giorni prima della ricorrenza del decennale della morte del Professore.
The story of the impact of Ebola virus disease on a rural village in Kailahun District, Sierra Leone
Creators: name: Caleo, Grazia
name: Duncombe, Jennifer
name: Kamalini Lokuge
name: Mills, Clair
name: Jephcott, Freya
name: Looijen, Evita
name: Kremer, Ronald
name: Squire, James S
name: Grieg, Jane
Publisher: name: F1000Research
Year: 2015

description: On 12 June 2014, a state of emergency was declared in Kailahun District, Sierra Leone, due to Ebola virus disease (EVD). Médecins Sans Frontières (MSF) opened an Ebola Management Centre (EMC) in Kailahun. The local Ministry of Health and Sanitation (MoHS) reported a total of 565 confirmed EVD cases in the district during the outbreak, with the last confirmed case reported in mid-December: however, official MoHS figures do not reflect the true magnitude of the outbreak. In order to benchmark the severity of the outbreak and document the perception of EVD response an exhaustive retrospective mortality survey of one highly affected rural village was conducted. A mixed-method case study approach was employed. Here we present the outcome of the qualitative research.This case study generated results that present on a small scale what happened in rural Sierra Leone on a large scale in this outbreak and reinforces the importance of early and ongoing engagement with the community. Changes in behaviour over time were documented following initial under-notification of cases.
NMR studies of Successive Phase Transitions in Na0.5CoO2 and K0.5CoO2
Creators: name: Yokoi, Mai
name: Kobayashi, Yoshiaki
name: Moyoshi, Taketo
name: Sato, Masatoshi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: 59Co- and 23Na-NMR measurements have been carried out on polycrystalline and c-axis aligned samples of Na0.5CoO2, which exhibits successive transitions at temperatures T = 87 K (= Tc1) and T = 53 K (= Tc2). 59Co-NMR has also been carried out on c-axis aligned crystallites of K0.5CoO2 with similar successive transitions at Tc1 ~ 60 K and Tc2 ~ 20 K. For Na0.5CoO2, two sets of three NMR lines of 23Na nuclei explained by considering the quadrupolar frequencies nuQ ~1.32 and 1.40 MHz have been observed above Tc1, as is expected from the crystalline structure. Rather complicated but characteristic variation of the 23Na-NMR spectra has been observed with varying T through the transition temperatures, and the internal fields at two crystallographically distinct Na sites are discussed on the basis of the magnetic structures reported previously. The internal fields at two distinct Co sites observed below Tc1 and the 591/T1-T curves of Na0.5CoO2 and K0.5CoO2 are also discussed in a comparative way.
description: 7 pages, 10 figures, submitted to J. Phys. Soc. Jpn, correction is made in right colum of p6 (35th line) as K0.5CoO2-->Na0.5CoO2
Mellin amplitudes for 1$d$ CFT
Creators: name: Bianchi, Lorenzo
name: Bliard, Gabriel
name: Forini, Valentina
name: Peveri, Giulia
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We define a Mellin amplitude for CFT$_1$ four-point functions. Its analytical properties are inferred from physical requirements on the correlator. We discuss the analytic continuation that is necessary for a fully nonperturbative definition of the Mellin transform. The resulting bounded, meromorphic function of a single complex variable is used to derive an infinite set of nonperturbative sum rules for CFT data of exchanged operators, which we test on known examples. We then consider the perturbative setup produced by quartic interactions with an arbitrary number of derivatives in a bulk AdS$_2$ field theory. With our formalism, we obtain a closed-form expression for the Mellin transform of tree-level contact interactions and for the first correction to the scaling dimension of "two-particle" operators exchanged in the generalized free field theory correlator.
description: 48 pages, 2 figures, 1 Mathematica notebook attached; v2: enlarged text in Sections 1,3,5, matches published version in JHEP
title: Characterisation of the high-energy neutron field at the ISIS-VESUVIO facility by means of thin-film breakdown counters
Creators: name: Smirnov, AN
name: Prokofiev, AV
name: Rodionova, EE
name: Frost, C D
name: Ansell, S
name: Schooneveld, E M
name: Gorini, G
name: Pietropaolo, A
Publisher: name: Science and Technology Facilities Council
Year: 2010
Subjects: ISIS 2010 Update

description: High-energy neutron field of the VESUVIO instrument at the ISIS facility has been characterized using the technique of thin film breakdown counters. The work is a part of the project to develop ChipIr, a new dedicated facility for accelerated testing of electronic components and systems for neutron-induced single event effects in the new Target Station 2 at ISIS.
Successful decentralization of pre-analysis viral load testing procedures and sample storage to primary care clinics in Shiselweni, Swaziland
Creators: name: Mwewa, Bruce
name: Laban Kyembe
name: Gacheru, Bernard
name: Gugu Maphalala
name: Alideki, John
name: Chitundu, Stanley
name: Bakri, Ahmad Haj
name: Kerschberger, Bernhard
Publisher: name: F1000Research
Year: 2015

description: In 2007, MSF and the Ministry of Health initiated a HIV/TB care decentralization project in the rural Shiselweni region (Swaziland) to improve access to HIV/TB diagnostic, care and treatment. Our aims were to retrospectively describe a routine VL laboratory intervention with a task-shifting component, resulting in every-day capacity of VL sample collection at rural primary clinics.Access to VL testing is often limited in rural settings. In Swaziland, decentralization of pre-analysis VL sample processing to primary care clinics was feasible. Utilization of trained lay health care cadre (phlebotomists) through task-shifting was essential. Although TAT of results increased, this came with the added advantage of increased access to VL monitoring for patients and resolving previous daily-transportation limitation. Pre-analysis sample processing will also be utilized by the MoH to scale-up VL monitoring in the rest of Swaziland.
Στάσεις των καθηγητών ξένων γλωσσών προς την τεχνολογία υπολογιστών και κινητών συσκευών
Creators: name: Μιχαηλίδου, Παρθένα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Eκμάθηση γλωσσών με τη βοήθεια υπολογιστών (CALL)
Eκμάθηση γλωσσών με τη βοήθεια κινητών συσκευών (MALL)
αντιλήψεις εκπαιδευτών
CALL
MALL
instructor perceptions

description: Ενώ η εκμάθηση γλωσσών με τη βοήθεια υπολογιστών (CALL) και η εκμάθηση γλωσσών με τη βοήθεια κινητών συσκευών (MALL) έχει αναπτυχθεί και έχει εμπνεύσει πολλούς ερευνητές, η γνώση μας για τις προτιμήσεις των εκπαιδευτών για τη χρήση υπολογιστών και κινητών συσκευών παραμένει περιορισμένη. Οι Η/Υ και οι κινητές συσκευές φαίνεται να είναι χρήσιμα εργαλεία, τα οποία μπορούν να ενσωματωθούν στην εκπαίδευση και να δημιουργήσουν ένα βοηθητικό μαθησιακό περιβάλλον για τους εκπαιδευόμενους. Παρόλα ταύτα, οι δάσκαλοι δεν είναι συνηθισμένοι να χρησιμοποιούν τους υπολογιστές και τις κινητές τους συσκευές για εκπαίδευση γλωσσών ίσως λόγω των εμποδίων που αντιμετωπίζουν. Οι εκπαιδευτές πρέπει να λάβουν υπόψη τους τα προτερήματα και τα ελαττώματα όσον αφορά το CALL και το MALL και πρέπει να εξεταστούν θέματα που έχουν αντίκτυπο στην καθιέρωση των υπολογιστών και των κινητών τηλεφώνων ως εργαλεία μάθησης. Το κέντρο ενδιαφέροντος αυτής της μελέτης είναι στις απόψεις των καθηγητών Αγγλικής σχετικά με την τεχνολογία υπολογιστών και κινητής τηλεφωνίας που δυσκολεύουν την ενσωμάτωση της εκπαίδευση γλωσσών με τη βοήθεια υπολογιστή και κινητών.
description: While Computer Assisted Language Learning (CALL) and Mobile Assisted Language Learning (MALL) has blossomed and has intrigued many researchers, our awareness of instructors’ preferences for computer and mobile usage is still restricted. Desktop computers and mobile devices seem to be useful tools, which can be incorporated into education and create an auxiliary learning environment for learners. Nevertheless, tutors are not used to utilizing their computers and mobile devices for language teaching maybe due to obstacles they face. Tutors need to take into account advantages and drawbacks regarding CALL and MALL and issues having an impact on the establishment of computers and mobiles as learning tools need to be considered. The basic focus of this study is on the perspectives of English language instructors concerning computer and mobile technology that gravely hinder the integration of computer and mobile teaching in education.
Structure peculiarities of cementite and their influence on the magnetic characteristics
Creators: name: Arzhnikov, A. K.
name: Dobysheva, L. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The iron carbide $Fe_3C$ is studied by the first-principle density functional theory. It is shown that the crystal structure with the carbon disposition in a prismatic environment has the lowest total energy and the highest energy of magnetic anisotropy as compared to the structure with carbon in an octahedron environment. This fact explains the behavior of the coercive force upon annealing of the plastically deformed samples. The appearance of carbon atoms in the octahedron environment can be revealed by Mossbauer experiment.
description: 10 pages, 3 figures, 3 tables. submitted to Phys.Rev. B
Independent Vector Extraction for Fast Joint Blind Source Separation and Dereverberation
Creators: name: Ikeshita, Rintaro
name: Nakatani, Tomohiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We address a blind source separation (BSS) problem in a noisy reverberant environment in which the number of microphones $M$ is greater than the number of sources of interest, and the other noise components can be approximated as stationary and Gaussian distributed. Conventional BSS algorithms for the optimization of a multi-input multi-output convolutional beamformer have suffered from a huge computational cost when $M$ is large. We here propose a computationally efficient method that integrates a weighted prediction error (WPE) dereverberation method and a fast BSS method called independent vector extraction (IVE), which has been developed for less reverberant environments. We show that, given the power spectrum for each source, the optimization problem of the new method can be reduced to that of IVE by exploiting the stationary condition, which makes the optimization easy to handle and computationally efficient. An experiment of speech signal separation shows that, compared to a conventional method that integrates WPE and independent vector analysis, our proposed method achieves much faster convergence while maintaining its separation performance.
description: Accepted to IEEE Signal Processing Letters
Μέτρα Clark
Creators: name: Τσαντάρης Αθανάσιος   Άγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Μέτρα Clark
Τελεστές σύνθεσης
Ολόμορφες Συναρτήσεις
Clark measures
Composition operators
Holomorphic functions

description: Σκοπός της εργασίας αυτής είναι να παρουσιάσει την βασική θεωρία για τα μέτρα Clark και στην συνέχεια να δείξει την σχέση τους με την συνοριακή συμπεριφορά των ολομόρφων συναρτήσεων καθώς και με τους τελεστές σύνθεσης. Στο 1ο κεφάλαιο παραθέτουμε την βασική θεωρία για το Poisson ολοκλήρωμα και τις υφαρµονικές συναρτήσεις που θα χρειαστούμε για την μελέτη των μέτρων Clark. Στο 2ο κεφάλαιο δίνουμε τον ορισμό των µέτρων Clark, καθώς επίσης και τις βασικές τους ιδιότητες. Στο 3ο κεφάλαιο μελετάμε το θεώρημα ολοκλήρωσης του Aleksandrov. Στο 4ο κεφάλαιο μελετάμε τη σύνδεση των µέτρων Clark µε την συνοριακή συμπεριφορά των ολοµόρφων συναρτήσεων. Τέλος στο κεφάλαιο 5 ορίζουµε τον τελεστή του Aleksandrov, αποδεικνύουμε ότι είναι συνεχής και δείχνουμε ότι είναι ο δυϊκός του τελεστή σύνθεσης
description: The aim of this thesis is to present the basic theory for Clark measures and to show their connection with the boundary behavior of holomorphic functions and also with composition operators. The 1st chapter contains a concise introduction to the theory of the Poisson Integral and of subharmonic functions that we will need to study Clark measures. In the 2nd chapter we give the definition of Clark measures and their fundamental properties. In the 3rd chapter we study the Aleksandrov Disintegration Theorem. In the 4th chapter we study the connection between Clark measures and the boundary behavior of Clark measures. Finally, in chapter 5 we define the Aleksandrov operator, we prove its continuity and we show that it is the dual of the composition operator
Adverse drug reactions after the use of benznidazole in Bolivian patients with chagas disease
Creators: name: Silva, Gilberto Marcelo Sperandio Da
name: Brasil, Pedro Emmanuel Alvarenga Americano Do
name: Mediano, Mauro Felippe Felix
name: Hasslocher-Moreno, Alejandro Marcel
name: Mejía, Roger Arteaga
name: Fux, Carina Perotti
name: Marchiol, Andrea
name: Brum-Soares, Lucia Maria
Publisher: name: F1000Research
Year: 2015

description: Chagas disease remains an important problem in the world and there is an estimate of more than 10 million infected people worldwide. Benznidazole (BZN) is the main drug used for etiologic treatment of this disease. However, about 17 to 31% of patients discontinued the BZN treatment. The aim of the present study was to understand the predictors of BZN treatment discontinuation over time.Female sex, older patients, those who lived in urban areas, patients who had had moderate or severe ADRs and those who had had skin disorders had a higher risk for BZN treatment discontinuation. For these patients, a close follow-up should be carried out, at regular intervals of at least once a week to monitor BZN treatment. Impact of study: The results of this study may help to identify patients of high risk for BZN treatment discontinuation. Also, these results suggest that a close follow-up by health professionals could be necessary in order to improve adherence and early detection of adverse drug reactions.
Neutrino Mass Through Concomitant Breakdown of the U(1) Chiral and Scale Symmetries
Creators: name: Dias, Alex Gomes
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The possibility of generating neutrino mass through see-saw mechanism involving U(1) chiral Peccei-Quinn and scale symmetries breakdown is discussed. We consider a generic scale invariant model which has three Majorana fermions and a complex scalar singlet, which might be the one responsible for an invisible axion, and we perform a summation of all leading logarithmic radiative corrections to the tree level potential. The effective potential so obtained is stable and drives the scalar field to a nonzero vacuum expectation value according to the Coleman-Weinberg mechanism. As a result, right-handed neutrinos gain mass at the Peccei-Quinn scale which is suggestive for explaining very light active neutrinos. We illustrate the whole idea with the addition of the Standard Model, and also a SU(3)$_L\otimesU(1)_X$ model in which the subgroup SU(2)$_L\otimesU(1)_Y$ is constrained to be broken as an effect of the effective potential. This last model presents electric charge quantization as well.
description: 20 pages, 1 figure
D3.2: Design of a comparative study on DMQC methods used for deep Argo
Creators: name: Walicka, Kamila
name: King, Brian
name: Cabanes, Cecile
name: Thierry, Virginie
name: Desbruyères, Damien
name: Gilson, John
name: Zilberman, Nathalie
name: Purkey, Sarah
name: Kobayashi, Taiyo
name: Sato, Kanako
name: Hosoda, Shigeki
name: Wong, Annie
name: Van Wijk, Esmee
name: Foppert, Annie
name: Lyman, John
name: Johnson, Gregory
name: Mork, Kjell Arne
name: Donnelly, Matthew
name: Velez-Belchi, Pedro
name: Notarstefano, Giulio
Publisher: name: Zenodo
Year: 2020

description: This report will review the existing DMQC methods, its initial appropriateness to be used in the deep Argo extension, what method each partner will use, and the floats to the evaluated.
Μοντελοποίηση Διοικητικών Διαδικασιών στην Αποκεντρωμένη Διοίκηση Μακεδονίας – Θράκης
Creators: name: Σπόντη, Αφροδίτη Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Διοικητική Διαδικασία
Μοντελοποίηση Διαδικασιών
Αποκεντρωμένη Διοίκηση Μακεδονίας-Θράκης.
Administrative Procedure
Process Modeling
Decentralized Management of Macedonia-Thrace

description: Με την παρούσα εργασία γίνεται μια προσπάθεια να αποτυπωθεί ένα σύνολο δράσεων και συστηματικών ενεργειών, καθώς και οι φάσεις που οδήγησαν στη μοντελοποίηση επιλεγμένων διαδικασιών της Διεύθυνσης Κοινωφελών Περιουσιών της Αποκεντρωμένης Διοίκησης Μακεδονίας-Θράκης. Αρχικά δίνεται έμφαση στην περιγραφή θεωρητικών εννοιών και προτύπων που αποτελούν αντικείμενο της μοντελοποίησης όπως επίσης και σε τεχνολογικά εργαλεία που αποτέλεσαν το μέσο για την πραγματοποίησή τους. Μέρος της εργασίας καταλαμβάνει η καταγραφή των επιλεγμένων διαδικασιών, η μοντελοποίησή τους με τη χρήση ενός κατάλληλου εργαλείου ανοιχτού λογισμικού, βασισμένο στη δημοφιλή γλώσσα Business Process Modeling Notation (BPMN), η εξαγωγή συμπερασμάτων και η καταγραφή αυτών στο diadikasies.gr (wiki)
description: This work attempts to capture a set of actions and systematic actions, as well as the phases that led to the modeling of selected processes of the Directorate of Public Welfare Property of the Decentralized Administration of Macedonia-Thrace. Firstly, emphasis is placed on the description of the theoretical concepts and models that are the subject of the modeling as well as on the technological tools that have been the means for their realization. Part of the work is the recording of selected processes, their modeling using a suitable open source software tool, based on the popular Business Process Modeling Notation (BPMN) language, the extraction of conclusions and the recording of these in the site diadikasies.gr (wiki)
The isolation and phenotypic characterization of Paramecium tetraurelia temperature-sensitive cell cycle mutants
Creators: name: Chua, Gordon
Publisher: name: University of British Columbia
Year: 2009

description: Conditional cell cycle mutants which block cell division under restrictive conditions, increase their cell mass as a result of continued growth. Here, we develop a protocol to screen for large Paramecium temperature-sensitive cell cycle mutants by sizeselecting centrifugal elutriation. By using the ccl mutant as a standard for Paramecium temperature-sensitive cell cycle mutants, we determine that 14 hours of heat treatment produces sufficient size difference for the elutriator to discriminate cell cycle mutants from wild-type cells. In addition, this duration of heat treatment does not reduce the viability nor delays recovery rates significantly in cell cycle mutants. We demonstrate that multiple elutriations are able to retrieve ccl cells at cell cycle mutant frequencies of 0.02%. Two mutants, cc5 and cc8 have been isolated from this screen. Temperature-shift experiments reveal that these two mutants possess similar temperature-sensitive periods to ccl. The cc5 and cc8 mutants are allelic to each other but extragenic to ccl. The presence of a "pseudo" class in the F2 progeny of the cc5 X ccl cross suggests an interaction between the cc5 and ccl gene products.
Detecting ergodic bubbles at the crossover to many-body localization using neural networks
Creators: name: Szoldra, Tomasz
name: Sierant, Piotr
name: Kottmann, Korbinian
name: Lewenstein, Maciej
name: Zakrzewski, Jakub
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The transition between ergodic and many-body localized phases is expected to occur via an avalanche mechanism, in which \emph{ergodic bubbles} that arise due to local fluctuations in system properties thermalize their surroundings leading to delocalization of the system, unless the disorder is sufficiently strong to stop this process. We propose an algorithm based on neural networks that allows to detect the ergodic bubbles using experimentally measurable two-site correlation functions. Investigating time evolution of the system, we observe a logarithmic in time growth of the ergodic bubbles in the MBL regime. The distribution of the size of ergodic bubbles converges during time evolution to an exponentially decaying distribution in the MBL regime, and a power-law distribution with a thermal peak in the critical regime, supporting thus the scenario of delocalization through the avalanche mechanism. Our algorithm permits to pin-point quantitative differences in time evolution of systems with random and quasiperiodic potentials, as well as to identify rare (Griffiths) events. Our results open new pathways in studies of the mechanisms of thermalization of disordered many-body systems and beyond.
description: version accepted in PRB Lett
Elastic properties of the Non-Fermi liquid metal $Ce Ru_4 Sb_{12}$ and the Dense Kondo semiconductor $Ce Os_4 Sb_{12}$
Creators: name: Nakanishi, Yoshiki
name: Kumagai, Tomoyuki
name: Oikawa, Masafumi
name: Tanizawa, Tomoaki
name: Yoshizawa, Masahito
name: Sugawara, Hitoshi
name: Sato, Hideyuki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have investigated the elastic properties of the Ce-based filled skutterudite antimonides CeRu$_{4}$Sb$_{12}$ and CeOs$_{4}$Sb$_{12}$ by means of ultrasonic measurements. CeRu$_{4}$Sb$_{12}$ shows a slight increase around 130 K in the temperature dependence of the elastic constants $C$$_{11}$, ($C$$_{11}$-$C$$_{12}$)/2 and $C$$_{44}$. No apparent softening toward low temperature due to a quadrupolar response of the 4$f$-electronic ground state of the Ce ion was observed at low temperatures. In contrast CeOs$_{4}$Sb$_{12}$ shows a pronounced elastic softening toward low temperature in the longitudinal $C$$_{11}$ as a function of temperature ($T$) below about 15 K, while a slight elastic softening was observed in the transverse $C$$_{44}$ below about 1.5 K. Furthermore, CeOs$_{4}$Sb$_{12}$ shows a steep decrease around a phase transition temperature of 0.9 K in both $C$$_{11}$ and$ C$$_{44}$. The elastic softening observed in $C$$_{11}$ below about 15 K cannot be explained reasonably only by the crystalline electric field effect. It is most likely to be responsible for the coupling between the elastic strain and the quasiparticle band with a small energy gap in the vicinity of Fermi level. The elastic properties and the 4$f$ ground state of Ce ions in CeRu$_{4}$Sb$_{12}$ and CeOs$_{4}$Sb$_{12}$ are discussed from the viewpoint of the crystalline electric field effect and the band structure in the vicinity of Fermi level.
description: 9 pages, 11 figures, regular paper
A comprehensive intervention program associated with the decline of ebola virus disease in Lofa County, Liberia, March - November 2014
Creators: name: Reeder, Bruce
name: Gignoux, Etienne
name: Heijenberg, Nico
name: Clement, Peter
name: Azuma, Phillip
name: Tamba, Alpha
name: Bolongei, Josephus
name: Iza Ciglenecki
name: Tiffany, Amanda
name: Job, Dorian
name: Sterk, Esther
name: Engel, Gregory
Publisher: name: F1000Research
Year: 2015

description: On March 30, 2014 the first cases of Ebola Virus Disease (EVD) in Liberia were reported in Lofa County near the northern border with Guinea. From June 6 (week 23) to August 18 (week 34), case numbers grew in an exponential fashion, but in contrast to other regions in Liberia, rapidly decreased to zero by early November (week 46). This report characterizes the epidemiological features of the outbreak and details the response, assessing the role of multiple interventions in controlling the EVD epidemic.Epidemiological analysis, temporal relationships and interview data suggest a complementary effect of the multiple interventions. Social mobilization seems to have been especially important in gaining the trust of, and reducing risk behaviours in communities, thereby reducing disease transmission.
Cytomegalovirus retinitis in Myanmar: valganciclovir and introcular injections of Ganciclovir in a resource-limited setting
Creators: name: Kyaw, Nang Thu Thu
name: Zuu, Moe Khine Lwin
name: Ousley, Janet
name: Kyi Pyar  Soe
name: Rey Anicete
name: Fernandez, Marcelo
Publisher: name: F1000Research
Year: 2015

description: MSF started its HIV project in Dawei, Myanmar in 2004 and is currently following nearly 4000 HIV-infected patients. Systematic CMV retinitis screening using indirect ophthalmoscopy was initiated in February 2013. Patients with diagnosed CMV retinitis were treated with intraocular ganciclovir injections until oral valganciclovir was available in February 2014.Myanmar has a concentrated HIV epidemic in a population of nearly 50 million people. HIV prevalence is 0.5% and an estimated 200,000 people are living with HIV. With the recent scaling up of ART in country, there are 67,000 patients on ART. Screening and treatment of CMV retinitis is not part of the routine management of HIV in Myanmar and not part of the national protocol. CMV retinitis screening was started in 2006 in some MSF HIV projects with HIV clinicians trained by consultant ophthalmologist. Diagnosed CMV retinitis patients were treated with intraocular ganciclovir injection. Valganciclovir treatment was introduced in February 2014.
Sports marketing through social media: Examining Greece, Germany and England
Creators: name: Πολίτης, Χρήστος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Αθλητικό μάρκετινγκ
Κοινωνικά μέσα
Διαπολιτισμικότητα
Sports marketing
Social media
Cross-Cultural

description: Social media constitute an important asset for successful advertising of sports club. This particular research analyzes posts from football clubs of three countries on Facebook, using the "creative strategies and executions" method. The aim is to identify the differences and similarities that arise between the three countries through the typology of creative strategies and executions, regarding the use of Facebook by the football clubs of the countries. The results of the survey show that there are significant differences in the use of creative strategies and executions, but also in the user's preferences on how to promote the content of the club's publications.
description: Τα κοινωνικά μέσα αποτελούν σημαντικό κεφάλαιο για την πετυχημένη διαφήμιση ενός αθλητικού συλλόγου. Μέσω της έρευνας γίνεται ανάλυση αναρτήσεων από ποδοσφαιρικούς συλλόγους τριών χωρών στο Facebook, με τη χρήση της μεθόδου «δημιουργικές στρατηγικές και εκτελέσεις». Σκοπός είναι ο εντοπισμός των διαφορών και ομοιοτήτων που προκύπτουν ανάμεσα στις τρεις χώρες μέσω της τυπολογίας των δημιουργικών στρατηγικών και εκτελέσεων αναφορικά με τη χρήση του Facebook από τους ποδοσφαιρικούς συλλόγους των χωρών. Από τα αποτελέσματα της έρευνας προκύπτει ότι υπάρχουν σημαντικές διαφορές στον τρόπο χρήσης των δημιουργικών στρατηγικών και εκτελέσεων, αλλά επίσης, διαφέρουν οι προτιμήσεις των χρηστών όσον αφορά τον τρόπο προβολής του περιεχομένου των δημοσιεύσεων των συλλόγων.
Διαχείριση κινδύνων στον τομέα της αιολικής ενέργειας. Μελέτη Περίπτωσης αιολικό πάρκο νομού Ροδόπης
Creators: name: Νικολαΐδου, Θεοδώρα Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Διαχείριση χρηματοοικονομικών κινδύνων
Αξία σε κίνδυνο
Μέθοδος Monte Carlo
Financial Risk Management
Value at Risk
Monte Carlo Simulation
Έντυπα και cd με ελλιπή στοιχεία δεν γίνονται

description: Αντικείμενο της παρούσας εργασίας είναι η γνωριμία με τις ανανεώσιμες πηγές ενέργειας (ΑΠΕ) και η σπουδαιότητα της αξιοποίησης αυτών καθώς τα περιβαλλοντικά ζητήματα που μας απασχολούν στις μέρες μας καθιστούν άμεση επιτακτική ανάγκη την χρήση των ΑΠΕ. Αρχικά πραγματοποιείται συνοπτική περιγραφή της εννοιολογικής σημασίας του κινδύνου και των ειδών του καθώς επίσης γίνεται αναφορά και στην σημασία της διαχείρισης του κινδύνου. Στη συνέχεια γίνεται πλήρης αναφορά στους χρηματοοικονομικούς κινδύνους που αφορούν τον ενεργειακό κλάδο και συγκεκριμένα της αιολικής ενέργειας. Στην επόμενη ενότητα που έπεται παρουσιάζουμε την βιβλιογραφική ανασκόπηση σε σχέση με προηγούμενες μελέτες που έχουν γίνει για την αποτελεσματικότερη απόδοση της αιολικής ενέργειας και τέλος ακολουθούν η εμπειρική εφαρμογή όπου χρησιμοποιείται η μέθοδος Monte Carlo για τον υπολογισμό της αξίας σε κίνδυνο και μια θεωρητική προσέγγιση σε πραγματικά δεδομένα για το πως επηρεάζουν τα τεχνικά και ανεμολογικά χαρακτηριστικά στην απόδοση της αιολικής ενέργειας
description: The purpose of this thesis is to familiarize us with the renewable energy sources and the importance of their utilization. Initially, we describe the term of risk and risk management. Then we refer to the risks that are associated with the energy sector. The next section presents a bibliographic review of previous studies and then we describe the empirical application using the Monte Carlo simulation for calculating value-at-risk. Finally, a theoretical approach to real data on how the technical and climatic characteristics affect the air energy performance is included
Quantum kinetics of anomalous and nonlinear Hall effects in topological semimetals
Creators: name: König, Elio J.
name: Levchenko, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a systematic microscopic derivation of the semiclassical Boltzmann equation for band structures with the finite Berry curvature based on Keldysh technique of nonequilibrium systems. In the analysis, an ac electrical driving field is kept up to quadratic order, and both cases of small and large frequencies corresponding to intra- and interband transitions are considered. In particular, this formulation is suitable for the study of nonlinear Hall effect and photogalvanic phenomena. The role of impurity scattering is carefully addressed. Specifically, in addition to previously studied side-jump and skew-scattering processes, quantum interference diffractive contributions are now explicitly incorporated within the developed framework. This theory is applied to multifold fermions in topological semimetals, for which the generic formula for the skew scattering rate from the Pancharatnam phase is obtained along with the corresponding anomalous Hall conductivity.
description: Contribution to the Philip W. Anderson Memorial Special Issue in Annals of Physics [24 pages, 5 figures]
Through a new window: a new look at friendship quality and adjustment during adolescence
Creators: name: Sterling, Lisa Sarah
Publisher: name: University of British Columbia
Year: 2009

description: In the present study, the quality of one's friendship with both same-sex and opposite-sex best friendships in preadolescence and adolescence was examined as having special significance for psychological development. Specifically, this study was conducted to explore the relationships among seven aspects of friendship quality (Self-Disclosure, School Help, Conflict, Shared Experience, Trust/Loyalty, Validation/Caring, and Closeness) and psychosocial adjustment (Self-Worth, Depression and Alienation), and how these relationships varied as a function of age (grade five, eight and eleven) and gender. In examining the findings, a complex pattern emerged, suggesting that the various aspects of friendship quality were differentially related to particular indices of adjustment. Moreover, the relations between friendship quality and various indices of adjustment were found to vary developmentally across the adolescent period and differed for boys and girls.
Hiding the Higgs at the LHC
Creators: name: Bahat-Treidel, Omri
name: Grossman, Yuval
name: Rozen, Yoram
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a simple extension of the standard model where scalar singlets that mix with the Higgs doublet are added. This modification to the standard model could have a significant impact on Higgs searches at the LHC. The Higgs doublet is not a mass eigenstate and therefore the expected nice peak of the standard model Higgs disappears. We analyze this scenario finding the required properties of the singlets in order to make the Higgs "invisible" at the LHC. In some part of the parameter space even one singlet could make the discovery of the SM Higgs problematic. In other parts, the Higgs can be discovered even in the presence of many singlets.
description: 9 pages, 1 figure. V2- References added. V3- Several examples and one fig. added