cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulated mass measurements of the young planet K2-33b
Creators: name: Klein, Baptiste
name: Donati, Jean-François
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper, we carry out simulations of radial velocity (RV) measurements of the mass of the 8-11 Myr Neptune-sized planet K2-33b using high-precision near infrared velocimeters like SPIRou at the Canada-France-Hawaii Telescope. We generate a RV curve containing a planet signature and a realistic stellar activity signal, computed for a central wavelength of 1.8 $μ$m and statistically compatible with the light-curve obtained with K2. The modelled activity signal includes the effect of time-evolving dark and bright surface features hosting a 2 kG radial magnetic field, resulting in a RV signal of semi-amplitude ~30 m/s. Assuming a 3-month visibility window, we build RV time-series including Gaussian white noise from which we retrieve the planet mass while filtering the stellar activity signal using Gaussian Process Regression. We find that 35/50 visits spread over 3 consecutive bright-time runs on K2-33 allow one to reliably detect planet RV signatures of respectively 10 and 5 m/s at precisions larger than 3 $σ$. We also show that 30 visits may end up being insufficient in some cases to provide a good coverage of the stellar rotation cycle, with the result that the planet signature can go undetected or the mass estimation be plagued by large errors.
description: Letter accepted in MNRAS, 6 pages, 3 figures
Point-particle limit in a scalar theory of gravitation and the weak equivalence principle
Creators: name: Arminjon, Mayeul
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A scalar theory with a preferred reference frame is summarized. To test that theory in celestial mechanics, an "asymptotic" post-Newtonian (PN) scheme has been developed. This associates a conceptual family of self-gravitating systems with the given system, in order to have a true small parameter available. The resulting equations for a weakly-self-gravitating system of extended bodies include internal-structure effects. The internal-structure influence subsists at the point-particle limit--a violation of the weak equivalence principle. If one could develop an "asymptotic" approximation scheme in general relativity also, this could plausibly be found there also, in a gauge where the PN space metric would not be "conformally Euclidean".
description: LaTeX, 6 pages. Text of a talk given at the Rencontres de Moriond: Gravitational Waves and Experimental Gravity, Les Arcs, France (March 22-29, 2003). Submitted to the Proceedings (J. Dumarchez, ed.)
Ελευθέρα γάρ εἰμι : Όψεις της θέσης και του ρόλου της γυναίκας στην αθηναϊκή κοινωνία κατά τα τέλη του 5ου αι. π.Χ., μέσα από τον νομικό σχολιασμό του έργου «Λυσιστράτη» του Αριστοφάνη
Creators: name: Χαλκιάς Παντελής Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Λυσιστράτη
Δημοκρατία
Ισότητα
Lysistrata
Democracy
Equality

description: Σκοπός της παρούσας εργασίας είναι η ανάδειξη της προβληματικής του κοινωνικού ρόλου και της θέσης της γυναίκας στην Αθήνα των τελών του 5ου αι. π.Χ. μέσα από την νομική ανάλυση του έργου «Λυσιστράτη» του Αριστοφάνη. Επίσης, σκιαγραφούνται τόσο η κατάπτωση της αθηναϊκής δημοκρατίας όσο και οι συνέπειές της, με βάση την κρίση των θεσμών, όπως αυτή αποτυπώνεται σε συγκεκριμένους στίχους του έργου. Στην πρώτη ενότητα αναφέρονται βιογραφικά στοιχεία του Αριστοφάνη, καθώς και σύντομο ιστορικό περίγραμμα του συγκεκριμένου έργου. Ακολούθως, στην δεύτερη ενότητα αναλύεται η πορεία προς την κατασκευή της αρνητικής εικόνας για την γυναίκα, από την αρχαϊκή εποχή έως και τα τέλη του 5ου αι. π.Χ., γεγονός συνδεόμενο με την άνοδο και εδραίωση του οίκου ως βασικής κοινωνικής μονάδας. Στην τρίτη ενότητα, αναλύονται, νομικά, συγκεκριμένοι στίχοι του έργου, ώστε να αποδειχθεί ότι η γυναίκα, ακόμα και σε μια ακραιφνώς πατριαρχική κοινωνία, όπως η αθηναϊκή, αντλούσε κοινωνικό κύρος και διαδραμάτιζε σπουδαίο κοινωνικό ρόλο, μέσα από συγκεκριμένες εκφάνσεις του δημοσίου αλλά και του ιδιωτικού βίου. Στα συμπεράσματά μας εκθέτουμε τόσο το διαχρονικό ζήτημα της ισότητας των δύο φύλων όσο και τις αδυναμίες της σύγχρονης δημοκρατίας
description: The present thesis aims to discuss issues concerning women’s social role and social status in the Athenean society during the end of the 5th century b.C. ,by analyzing certain verses of Aristophanes’s play, “Lysistrata”. In addition, we try to expose the extend of the corruption of the institutions of the Athenean democracy, as well as its consequences on the Athenean people. In the first section, a short curriculum vitae of Aristophanes and some historical information concerning the play are exposed. Section 2 is about the gradual formation of a negative image about women through the archaic and classical age, something which was directly linked to the establishment of “οἶκος” (= house) as the main part of the society. In section 3, certain verses of the play are analyzed from a legal perspective, so as to prove that, despite women living in a totally patriarchic society, like the Athenean, they had gained important social status to a certain extend, linked to aspects of public and private life. In our conclusions, we demonstrate the timeless problem of gender equality as well as the weaknesses of modern democracy
Chemistry of the spin-1/2 kagome Heisenberg antiferromagnet
Creators: name: Yao, Yuan
name: Umrigar, C. J.
name: Elser, Veit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We believe that a necessary first step in understanding the ground state properties of the spin-${\scriptstyle\frac{1}{2}}$ kagome Heisenberg antiferromagnet is a better understanding of this model's very large number of low energy singlet states. A description of the low energy states that is both accurate and amenable for numerical work may ultimately prove to have greater value than knowing only what these properties are, in particular when these turn on the delicate balance of many small energies. We demonstrate how this program would be implemented using the basis of spin-singlet dimerized states, though other bases that have been proposed may serve the same purpose. The quality of a basis is evaluated by its participation in all the low energy singlets, not just the ground state. From an experimental perspective, and again in light of the small energy scales involved, methods that can deliver all the low energy states promise more robust predictions than methods that only refine a fraction of these states.
description: 9 pages, 6 figures, 1 table
Supplementary analyses from A phylogenomic approach reveals a low somatic mutation rate in a long-lived plant
Creators: name: Orr, Adam J.
name: Padovan, Amanda
name: Kainer, David
name: Külheim, Carsten
name: Bromham, Lindell
name: Bustos-Segura, Carlos
name: Foley, William
name: Haff, Tonya
name: Ji-Fan Hsieh
name: Morales-Suarez, Alejandro
name: Cartwright, Reed A.
name: Lanfear, Robert
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 60408 Genomics

description: Contains 5 sections relating to the five supplementary analyses described in the paper
Imaging atom-clusters by hard x-ray free electron lasers
Creators: name: Jurek, Zoltan
name: Oszlanyi, Gabor
name: Faigel, Gyula
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The ingenious idea of single molecule imaging by hard x-ray Free Electron Laser (X-FEL) pulses was recently proposed by Neutze et al. [Nature,406,752(2000)]. However, in their numerical modelling of the Coulomb explosion several interactions were neglected and no reconstruction of the atomic structure was given. In this work we carried out improved molecular dynamics calculations including all quantum processes which affect the explosion. Based on this time evolution we generated composite elastic scattering patterns, and by using Fienup's algorithm successfully reconstructed the original atomic structure. The critical evaluation of these results gives guidelines and sets important conditions for future experiments aiming single molecule structure solution.
description: 8 pages, 4 figures, submitted to Europhysics Letters
All supplementary materials from Joining a group diverts regret and responsibility away from the individual
Creators: name: Zein, Marwa El
name: Bahador Bahrami
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: The supplementary materials include 7 tables (1 with the lottery structure details, 6 for all the statistical details of the mixed models used), 2 supplementary figures, and supplementary results.
The Reaction Mechanism of the Azide-Alkyne Huisgen Cycloaddition
Creators: name: Danese, Martina
name: Bon, Marta
name: Piccini, GiovanniMaria
name: Passerone, Daniele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The azide-alkyne Huisgen cycloaddition has a key role in click chemistry and configures as powerful tool in pharmaceutical and medicinal chemistry. Although this reaction has already been largely studied, there is an ongoing debate about its mechanism. In this work we study the dynamical aspects of the process using metadynamics computer simulation. We focus on the conformational aspects that determine the course of the reaction and characterize the free energy landscape of the process. To properly capture the thermodynamics of the process we select optimal collective variables using harmonic linear discriminant analysis. The results confirm the experimental evidence qualitatively and give insight on the role of the substituents and the possible transition mechanisms.
Stabilizing Open Quantum Batteries by Sequential Measurements
Creators: name: Gherardini, Stefano
name: Campaioli, Francesco
name: Caruso, Filippo
name: Binder, Felix C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A quantum battery is a work reservoir that stores energy in quantum degrees of freedom. When immersed in an environment an open quantum battery needs to be stabilized against free energy leakage into the environment. For this purpose we here propose a simple protocol that relies on projective measurement and obeys a second-law like inequality for the battery entropy production rate.
description: 5+5 pages, 3+2 figures
Noncommutative localization in noncommutative geometry
Creators: name: Skoda, Zoran
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14A15; 14A22; 16D; 16S; 18F

description: The aim of these notes is to collect and motivate the basic localization toolbox for the geometric study of ``spaces'', locally described by noncommutative rings and their categories of one-sided modules. We present the basics of Ore localization of rings and modules in much detail. Common practical techniques are studied as well. We also describe a counterexample for a folklore test principle. Localization in negatively filtered rings arising in deformation theory is presented. A new notion of the differential Ore condition is introduced in the study of localization of differential calculi. To aid the geometrical viewpoint, localization is studied with emphasis on descent formalism, flatness, abelian categories of quasicoherent sheaves and generalizations, and natural pairs of adjoint functors for sheaf and module categories. The key motivational theorems from the seminal works of Gabriel on localization, abelian categories and schemes are quoted without proof, as well as the related statements of Popescu, Watts, Deligne and Rosenberg. The Cohn universal localization does not have good flatness properties, but it is determined by the localization map already at the ring level. Cohn localization is here related to the quasideterminants of Gelfand and Retakh; and this may help understanding both subjects.
description: 93 pages; (including index: use makeindex); introductory survey, but with few smaller new results
Resampling Algorithms for High Energy Physics Simulations
Creators: name: Olsson, Jimmy
name: Plätzer, Simon
name: Sjodahl, Malin
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We demonstrate that the method of interleaved resampling in the context of parton showers can tremendously improve the statistical convergence of weighted parton shower evolution algorithms. We illustrate this by several examples showing significant statistical improvement.
description: 7 pages, 3 figures
Exploring the Challenges of Commissioning Mental Health Services for Black Men
Creators: name: Yalcin, Aynur
Publisher: name: University of East London
Year: 2020

description: This research explored the challenges for commissioning services for Black men in Mental Health Services in the UK National Health Service (NHS). More specifically, the focus was on how commissioners conceptualised the structural and social issues in developing services for Black men with the aim of understanding how these issues might translate into service development. The context of commissioning was the focus of the study due to the influence this has on service provision and consequently on supporting the mental health of Black men. The study involved individual in-depth interviews with eight commissioners who had a role in commissioning adult NHS Mental Health Services. Interviews were analysed using thematic analysis drawing on an Intersectionality framework within a critical realist epistemology. Three main themes were identified, ‘Challenges to Commissioning Mental Health Services’, ‘Reframing Mental Health Services’ and ‘Black Men and Power Dynamics’. Key findings from the analysis highlighted various intersecting locations such as maleness, ‘race’, and social context in understanding factors that contribute to the mental health of Black men. These issues were drawn upon to discuss the constrains of service provisions available and explain why Black men were excluded from commissioning processes, leaving them with little power to influence decisions regarding mental health provisions. Based on the analysis, the limitations of current mental health provisions and processes involved in commissioning are discussed and considered in relation to supporting Black men’s mental health. This research indicates that more inclusion and support is required to empower Black men to be involved in commissioning processes in order to address some of the structural and social issues relevant to addressing mental health needs. The implications and suggestions are discussed in relation to considering ways that Clinical Psychologists in particular can facilitate this.
Multicriteria supplier selection decision making using AHP in a greek wrapping company
Creators: name: Ευθυμιάδου, Ανατολή Ηρακλή
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Επιλογή προμηθευτών
Πολυκριτηριακη μέθοδος
Κριτήρια επιλογής προμηθευτών
Supplier selection problem
Multi criteria decision making
Analytical Hierarchical Process ( AHP)

description: In modern business world, supplier selection problem is an important strategic decision. Many firms spend a significant part of their revenues in purchasing raw materials and component parts that is affecting the price of the product. Therefore, if supplier selection is successful, it leads to minimization of costs and increases firm’s competitive advantage. Through the literature review, supplier selection problem has been studied and several methods have been applied for its solution. Multi- criteria methods are proven to be the most suitable methods in solving this problem, since supplier evaluation is often based upon both qualitative and quantitative criteria that are in most cases conflicting. In subject thesis, an attempt is made to select the best raw materials supplier for a Greek Wrapping Company. Firstly, a literature review is conducted in order to identify the most popular methodology and criteria used for supplier selection problem. Next the AHP method is applied, based on seven criteria, in order to decide the best option among four alternative suppliers. Lastly a sensitivity analysis is carried out in order to observe any changes in the ranking and final decision.
description: Στον σύγχρονο επιχειρηματικό κόσμο, η επιλογή προμηθευτών είναι μια σημαντική στρατηγική απόφαση. Πολλές επιχειρήσεις επενδύουν μεγάλο μέρος των κερδών τους για την αγορά πρώτων υλών και εξαρτημάτων, το οποίο επηρεάζει την τελική τιμή του προϊόντος. Επομένως εάν η επιλογή του προμηθευτή αποδειχτεί επιτυχημένη, οδηγεί σε ελαχιστοποίηση του κόστους παραγωγής του προϊόντος και ανάπτυξη του ανταγωνιστικού πλεονεκτήματος της επιχείρησης. Μέσω της βιβλιογραφικής ανασκόπησης είναι φανερό ότι το πρόβλημα της επιλογής του κατάλληλου προμηθευτή έχει μελετηθεί εκτεταμένα και πολλές διαφορετικές μέθοδοι έχουν εφαρμοστεί με σκοπό την λύση του. Οι πολυκριτηριακές μέθοδοι έχουν αποδειχθεί ως οι πιο αποτελεσματικές μέθοδοι για την επίλυση τέτοιων προβλημάτων, καθώς η αξιολόγηση και η επιλογή των προμηθευτών στηρίζεται τόσο σε ποσοτικά όσο και σε ποιοτικά κριτήρια, τα οποία είναι συχνά αντικρουόμενα. Σε αυτήν την μεταπτυχιακή διατριβή, έγινε μια προσπάθεια επιλογής προμηθευτή πρώτων υλών σε μια Ελληνική Εταιρία συσκευασίας. Αρχικά πραγματοποιήθηκε μια βιβλιογραφική ανασκόπηση για τον εντοπισμό των πιο γνωστών μεθόδων και κριτηρίων που έχουν χρησιμοποιηθεί για παρόμοια προβλήματα. Έπειτα η μέθοδος AHP εφαρμόστηκε, βασισμένη σε επτά κριτήρια αξιολόγησης, ούτως ώστε να καταλήξει στην καλύτερη δυνατή επιλογή ανάμεσα σε τέσσερις εναλλακτικούς προμηθευτές. Τέλος πραγματοποιήθηκε μια ανάλυση ευαισθησίας με σκοπό να παρατηρηθούν τυχόν αλλαγές στην τελική κατάταξη και επιλογή των προμηθευτών
Modulation of the Gastrointestinal Immune Environment by Macrophage Migration Inhibitory Factors (MIF) and Helminth-Derived Cytokine Homologues of MIF
Creators: name: Neville, Martina
Publisher: name: University of East London
Year: 2020

description: Macrophage Migration Inhibitory Factor (MIF) is a pleotropic cytokine first discovered over 50 years ago. MIF and many MIF-like proteins contain an evolutionarily conserved proline residue that confers an enigmatic tautomerase activity. Mammalian MIF proteins also contain an additional oxidoreductase domain whose activity is abrogated by substitution of two critical cysteine residues at position 57 and 60. MIF is secreted constitutively by intestinal epithelial cells and is highly upregulated when barrier function is compromised such as in the case of inflammatory bowel diseases. MIF homologues are also secreted by many parasitic organisms, one of which is the intestinal helminth, Trichinella spiralis. T. spiralis secretes vast quantities of MIF upon entering the gastrointestinal tract though to date the biological relevance of T. spiralis derived MIF in modulating host responses is undetermined. In this study the generation MIF proteins and mutants devoid of enzymatic sites enabled the analysis of MIF’s role within the intestinal immune environment including the transcriptomic assessment of ex vivo intestinal explants and primary macrophages. Recombinant WT and tautomerase deficient proteins generated as part of this body of work modulated TLR-4 mediated NF-kB activation in the presence of LPS in a HEK and HT29 cell model indicating that MIF can modulate epithelial driven immune responses via a master regulator. Consistent with this, ex vivo studies utilising murine intestinal explants revealed that murine and Trichinella derived MIF homologues modulate cytokines such as IL-6, TNF-a and IL-22 to drive distinct immune responses. In addition, the modulation of IL-22 and TNF-a was highly dependent on the presence of the tautomerase site for Mm-MIF-1 and Ts-MIF-1, respectively. Likewise, analysis of cytokine profiles from MIF treated macrophages in the presence of TLR4 ligand, LPS, confirmed MIF’s role in modulating immune responses. Further characterization of BMDM macrophages using RNA seq technologies demonstrated that MIF homologues, and in particular, the tautomerase site, modulate the macrophage transcriptome priming cells for two discrete responses upon pattern recognition receptor (PRR) activation. Mm-MIF-1 treated BMDM macrophages downregulated several genes associated with the TNF-a processing and secretion, ADAM28, Trp63 and Rab27b. Conversely, the parasite-derived Ts-MIF-1 upregulated genes responsible for cell cycle regulation, differentiation and cellular architecture such as IGFBP2, BMP3, BMP7 and several Krt genes. Overall, the data presented in this thesis provides clear evidence of discrete roles for murine and parasite-derived MIF in modulating innate immune responses and demonstrates that, while the activity of the tautomerase site is context dependent, loss of the enzymatic activity leads to dysregulation MIF responses.
title: Από τα παλιά αθηναϊκά σπίτια στην αστική πολυκατοικία. Η εξέλιξη της σχέσης ιδιωτικού-κοινόχρηστου στο πλαίσιο της πολύ-κατοίκησης
title: From the old Athenian houses to the urban apartment building. The evolution of the private-communal relationship in the context of multi-housing
Creators: name: Ρουβαλη Βασιλικη
name: Πανου Αμαλια-Μαρια
Publisher: name: Technical University of Crete
Year: 2021

description: Η σχέση ιδιωτικού-κοινόχρηστου στη συστέγαση πολλών ατόμων τίθεται ως θέμα συζήτησης και ανάλυσης κυρίως τα τελευταία χρόνια. Οι χώροι εκτόνωσης και κοινής χρήσης στη μαζική κατοίκηση συνήθως σχεδιάζονται στις ελάχιστες επιτρεπόμενες διαστάσεις τους. Στην πόλη της Αθήνας η συγκεκριμένη σχέση παρατηρείται από την ίδρυση της ως πρωτεύουσα, και αλλάζει ως προς το μέγεθος και τον ρόλο της στο πέρασμα του χρόνου. Η πληθυσμιακή αύξηση, η συνεχής μεταλλαγή της οικονομίας, οι κοινωνικές αλλαγές και τα περιορισμένα αποθέματα δομημένου περιβάλλοντος είναι μερικοί συντελεστές που έθεσαν την
αναγκαιότητα επίλυσης του ζητήματος στέγασης. Μέχρι σήμερα η πολύ-κατοίκηση σε πολυόροφα κτίρια αποτέλεσε την πιο διαδεδομένη λύση, επηρεάζοντας τη βαρύτητα, τη μορφή και τον ρόλο των παραπάνω χώρων. Αντικείμενο μελέτης της παρούσας ερευνητικής εργασίας αποτελεί η παρατήρηση της εξέλιξης των μοντέλων πολυ-κατοίκησης στην πόλη της Αθήνας από τις αρχές του 19ου μέχρι την τελευταία δεκαετία του 20ου αιώνα, με έμφαση στους χώρους κοινής χρήσης και εκτόνωσης.
A phase-dependent absorption line in the spectrum of the X-ray pulsar RX J0720.4-3125
Creators: name: Haberl, F.
name: Zavlin, V. E.
name: Truemper, J.
name: Burwitz, V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The XMM-Newton spectra of the isolated neutron star RX J0720.4-3125 show deviations from a Planckian energy distribution below 400 eV, similar to the spectra of RBS1223, another long-period X-ray pulsar, as reported recently by Haberl et al. (2003). For a Gaussian-shaped absorption line we derive an energy of 271 eV and an equivalent width of -40 eV from the phase-averaged spectra of RX J0720.4-3125. We investigate the spectral variations seen in hardness ratios as function of pulse phase and find that they are best described by changes in the depth of the absorption line. The line equivalent width changes between -31 eV around intensity maximum of the pulse and -58 eV at the declining part of the pulse. Small variations (<20 eV) of the line energy with pulse phase may still be caused by statistical fluctuations. On the other hand, the black-body temperature varies significantly by 2.5 eV (statistical 90% errors typically 0.7 eV) reaching the highest value at pulse maximum. One possible interpretation for the absorption line is cyclotron resonance scattering of protons in a magnetic field with B about 5x10^13 G. This field strength is compatible with estimates inferred from recent spin down measurements of the pulsar.
description: Accepted for publication in A&A
Creating Connections with Families Through Home Visits in the Prekindergarten Program
Creators: name: Grieve, Tamara Angeline
Publisher: name: The University of British Columbia
Year: 2015

description: The practice of home visits in early childhood programs offers the potential to build meaningful partnerships with families. Drawing on Bronfenbrenner's (1994) sociocultural model and Moll, Amanti, Neff and Gonzalez (1992) funds of knowledge perspective, this capstone project takes a critical and practical look at the practice of home visits, and how they support the important connections between home, school, and the community.
Composite Higgs from Higher Representations
Creators: name: Hong, D. K.
name: Hsu, S. D.
name: Sannino, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate new models of dynamical electroweak symmetry breaking resulting from the condensation of fermions in higher representations of the technicolor group. These models lie close to the conformal window, and are free from the flavor-changing neutral current problem despite small numbers of flavors and colors. Their contribution to the S parameter is small and not excluded by precision data. The Higgs itself can be light and narrow.
description: 4-pages, 2-columns, RevTex. Final version to appear on Physics Letters B
Ultra-diffuse galaxies in the Coma cluster: Probing their origin and AGN occupation fraction
Creators: name: Kovacs, Orsolya E.
name: Bogdan, Akos
name: Canning, Rebecca E. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Ultra-diffuse galaxies (UDGs) exhibit low surface brightness, but their optical extent is comparable to Milky Way-type galaxies. Due to their peculiar properties, it remains ambiguous whether UDGs are the descendants of massive galaxies or they are puffed-up dwarf galaxies. In this work, we explore a population of 404 UDGs in the Coma cluster to study their origin and AGN occupation fraction. To constrain the formation scenario of UDGs, we probe the X-ray emission originating from diffuse gas and from the population of unresolved low-mass X-ray binaries (LMXBs) residing in globular clusters (GCs). It is expected that both the luminosity of the hot gas and the number of globular clusters and hence the luminosity from GC-LMXBs are proportional to the total dark matter halo mass. We do not detect statistically significant emission from the hot gas or from GC-LMXBs. The upper limits on the X-ray luminosities suggest that the bulk of the UDGs reside in low-mass dark matter halos, implying that they are genuine dwarf galaxies. This conclusion agrees with our previous results obtained for isolated UDGs, arguing that UDGs are a homogenous population of galaxies. To probe the AGN occupation fraction of UDGs, we cross-correlate the position of detected X-ray sources in the Coma cluster with the position of UDGs. We identify two UDGs that have a luminous X-ray source at 3.0" and 3.2" from the center of the galaxies, which could be off-center AGN. However, Monte Carlo simulations suggest that one of these sources could be the result of spatial coincidence with a background AGN. Therefore, we place an upper limit of $\lesssim0.5\%$ on the AGN occupation fraction of UDGs.
description: 12 pages, 7 figures, ApJ in press
MUSTAQILLIK YILLARIDA ZOMIN TUMANINING TIBBIYOT TARIXI
Creators: name: To'ychiyeva Dilnoza Ikrom qizi
Publisher: name: Zenodo
Year: 2025

description:  

Annotatsiya. Mazkur maqolada Zomin tumani tibbiyotining 1991-2011 yillar kesimidagi holati, tibbiy muassasalar faoliyati va aholi salomatligini saqlashdagi olib borilgan islohotlar yoritilgan. Shu bilan birga, tibbiyotga oid respublika miqyosida qabul qilingan qarorlarning tumandagi ijrosi, tibbiy birlashmalarda mavjud muammo va kamchiliklar hamda ularning yechimlari kabi masalalar tadqiq etilgan.
Using Co-Production in Interventions to Reduce Health Inequalities: A Qualitative Study of Process and Impact
Creators: name: Salisbury, Cathryn
Publisher: name: University of East London
Year: 2020

description: This thesis explores the use and impact of co-production in the development and implementation of interventions to reduce health inequalities. My empirical research focuses on the use of co-production in an intervention designed to reduce inequality in access to antenatal care (the Community REACH intervention). Despite improvements in health, health inequalities remain prevalent worldwide. Co-production has been widely advocated in public health discourse because of its potential to address health inequalities. Co-production involves active participation of individuals and communities in designing, developing, and implementing interventions, services, or initiatives through equal and reciprocal relationships. Despite the promise of co-production, there is a lack of empirical evidence concerning process and impact, specifically in translating theory into practice and identifying factors that influence implementation. This thesis used qualitative research and combined observations and interviews to identify factors that supported or hindered the use of co-production in the Community REACH intervention. The study developed fidelity indicators to assess adherence to co-production principles and practices. Reciprocity, a foundational principle of co-production, was found to be key for successful implementation and facilitated other co-production elements. Collaborative practices were characterised by power imbalances connected to differences in disciplinary practices and insufficient attention dedicated to relationship‐building. This points to the need for a deliberate focus on relational practices to develop reciprocal relations and inclusive environments. Without these it was difficult for the various actors involved to establish shared understanding, negotiate roles, encourage social interactions among participants, and ensure a consistent high-fidelity co-production approach. The study also found that participating in a co-production process created a valuable community resource of volunteers who had strengthened their social networks and developed their capabilities and confidence to access new opportunities. The study also found that those who participated in the co-production process strengthened their social networks, developed their capabilities and their confidence to access new opportunities, and together became a valuable community resource of volunteers. Fidelity indicators developed in this study identify critical factors in the co-production process and potential solutions to avoid or address them, offering a systematic framework that leaves room for creativity in co-production. Future research should develop this set of fidelity indicators further.
Pulsations, eruptions, and evolution of four yellow hypergiants
Creators: name: van Genderen, A. M.
name: Lobel, A.
name: Nieuwenhuijzen, H.
name: Henry, G. W.
name: de Jager, C.
name: Blown, E.
name: Di Scala, G.
name: van Ballegoij, E. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim to explore the variable photometric and stellar properties of four yellow hypergiants (YHGs), HR8752, HR 5171A, $ρ$ Cas, and HD 179821, and their pulsations of hundreds of days, and long-term variations (LTVs) of years. We tackled multi-colour and visual photometric data sets, looked for photometric indications betraying eruptions or enhanced mass-loss episodes, calculated stellar properties mainly using a published temperature calibration, and investigated the nature of LTVs and their influence on quasi-periods and stellar properties. The $BV$ photometry revealed a high-opacity layer in the atmospheres. When the temperature rises the mass loss increases as well, consequently, as the density of the high-opacity layer. As a result, the absorption in $B$ and $V$ grow. The absorption in $B$, presumably of the order of one to a few 0\fm1, is always higher than in $V$. This difference renders redder and variable $(B-V)$ colour indexes, but the absorption law is unknown. This property of YHGs is unpredictable and explains why spectroscopic temperatures are always higher than photometric ones. We propose shorter distances for $ρ$ Cas and HR 5171A than the accepted ones. Therefore, a correction to decrease the blue luminescence of HR 5171A by polycyclic aromatic hydrocarbon (PAH) molecules is necessary, and HR 5171A would no longer be a member of the cluster Gum48d. HR 5171A is only subject to one source of light variation, not by two as the literature suggests. Eruptive episodes of YHGs prefer relatively cool circumstances when a red evolutionary loop (RL) has shifted the star to the red on the HR diagram. After the eruption, a blue loop evolution (BL) is triggered lasting one to a few decades. The reddening episode of HR 5171A between 1960 and 1974 was most likely due to a red loop evolution, and the reddening after the 1975 eruption was likely due to a shell ejection.
description: 28 pages, 18 figures, Accepted for Astronomy and Astrophysics
Temperature Chaos, Rejuvenation and Memory in Migdal-Kadanoff Spin Glasses
Creators: name: Sasaki, M.
name: Martin, O. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use simulations within the Migdal-Kadanoff real space renormalization approach to probe the scales relevant for rejuvenation and memory in spin glasses. One of the central questions concerns the role of temperature chaos. First we investigate scaling laws of equilibrium temperature chaos, finding super-exponential decay of correlations but no chaos for the total free energy. Then we perform out of equilibrium simulations that follow experimental protocols. We find that: (1) rejuvenation arises at a length scale smaller than the ``overlap length'' l(T,T'); (2) memory survives even if equilibration goes out to length scales much larger than l(T,T').
description: 4 pages, 4 figures, added references, slightly changed content, modified Fig. 4
Predictive Modelling of Student Academic Performance – the Case of Higher Education in Middle East
Creators: name: Al Madhoun, Wesam
Publisher: name: University of East London
Year: 2020

description: One of the main issues in higher education is student retention. Predicting students' performance is an important task for higher education institutions in reducing students' dropout rate and increasing students' success. Educational Data mining is an emerging field that focuses on dealing with data related to educational settings. It includes reading the data, extracting the information and acquiring hidden knowledge. This research used data from one of the Gulf Cooperation Council (GCC) universities, as a case study of Higher Education in the Middle East. The concerned University has an enrolment of about 20,000 students of many different nationalities. The primary goal of this research is to investigate the ability of building predictive models to predict students' academic performance and identify the main factors that influence their performance and grade point average. The development of a generalized model (a model that could be applied on any institution that adopt the same grading system either on the Foundation level (that use binary response variable (Pass/ Fail) or count response variable which is the Grade Average Point for students enrol in the undergraduate academic programs) to identify students in jeopardy of dismissal will help to reduce the dropout rate by early identification of needed academic advising, and ultimately improve students' success. This research showed that data science algorithms could play a significant role in predicting students' Grade Point Average by adopting different regression algorithms. Different algorithms were carried out to investigate the ability of building predictive models to predict students' Grade Point Average after either 2, 4 or 6 terms. These methods are Linear/ Logistic Regression, Regression Trees and Random Forest. These predictive models are used to predict specific students' Grade Point Average based on other values in the dataset. In this type of model, explicit instruction is given about what the model needs to learn. An optimization function (the model) is formed to find the target output based on specific input values. This research opens the door for future comprehensive studies that apply a data science approach to higher-education systems and identifying the main factors that influence student performance.
title: LES COUSINS
Creators: name: Misraki, Paul
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023
Subjects: subject: Musique de film

description: Esquisses, relevés, manuscrits des partitions musicales (à partir de la page 21) du film réalisé par Claude Chabrol : LES COUSINS
description: Temporal: XXème siècle
Oreodera mimetica Lane 1970
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Oreodera
Oreodera mimetica

description: 55. Oreodera mimetica Lane, 1970
Type locality — Costa Rica, Limón: Reventazón (Hamburg Farm). (USNM). Distribution — Costa Rica, Panama.
 Oreodera mimetica Lane, 1970b: 387; Chemsak et al., 1992: 131 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
title: Defining the burden of morbidity and mortality due to invasive Staphylococcus aureus disease and the impact of drug resistance in Thailand
Creators: name: Nickerson, Emma Katherine Franc
Publisher: name: The Open University
Year: 2009

description: A retrospective study of Staphylococcus aureus bacteraemia in a provincial hospital in northeast Thailand established that S. aureus was responsible for considerable morbidity and mortality. A prospective study of 270 patients with invasive S. aureus infection in the same hospital showed that the range of clinical manifestations was broad and comparable to that in developed countries. All-cause and S. aureus-attributable mortality rates were 26% and 20%, respectively. Multiple logistic regression analysis revealed that age, underlying cardiac disease and respiratory infection were risk factors for all-cause and S. aureus-attributable mortality, while abscesses and procedures for infectious source control were associated with survival. Patients infected by Panton-Valentine Leukocidin (PVL) gene-positive isolates had a strong survival advantage compared with patients infected by PVL gene-negative isolates. Evaluation of the patient sub-set with bacteraemia (n=98) demonstrated that the prevalence of endocarditis was similar to developed countries (14%), but that the all-cause and attributable mortality rates were considerably higher (52% and 44%, respectively). Methicillin-resistant S. aureus (MRSA) was responsible for 28% of bacteraemias, all of which were healthcare-associated. MRSA were multidrug resistant, and the proportion of MRSA-infected patients with bacteraemia prescribed an effective antimicrobial prior to culture results becoming available was low (15%). A subset of 73 patients with severe sepsis due to S. aureus bacteraemia was examined to consider why death occurred and how, by drawing on the ‘Surviving Sepsis Campaign’ guidelines, these might be prevented. Key findings were that the core elements of the guidelines were within the current resource capability of the hospital. A prospective study of rates of MRSA carriage and acquisition in 2 intensive care units demonstrated high rates of transmission and low compliance with hand-washing. In summary, S. aureus disease is an important pathogen in provincial Thailand and is probably responsible for a significant burden of disease across resource-restricted Asia.
High-Energy sources before INTEGRAL -- INTEGRAL reference catalog --
Creators: name: Ebisawa, Ken
name: Bourban, G.
name: Bodaghee, A.
name: Mowlavi, N.
name: Courvoisier, T. J. -L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe the INTEGRAL reference catalog which classifies previously known bright X-ray and gamma-ray sources before the launch of INTEGRAL. These sources are, or have been at least once, brighter than ~1 mCrab above 3 keV, and are expected to be detected by INTEGRAL. This catalog is being used in the INTEGRAL Quick Look Analysis to discover new sources or significantly variable sources. We compiled several published X-ray and gamma-ray catalogs, and surveyed recent publications for new sources. Consequently, there are 1122 sources in our INTEGRAL reference catalog. In addition to the source positions, we show an approximate spectral model and expected flux for each source, based on which we derive expected INTEGRAL counting rates. Assuming the default instrument performances and at least ~10^5 sec exposure time for any part of the sky, we expect that INTEGRAL will detect at least ~700 sources below 10 keV and ~400 sources above 20 keV over the mission life.
description: Accepted to A&A Letter INTEGRAL special issue
Magnetoresistive study of antiferromagnetic--weak ferromagnetic transition in single-crystal La$_{2}$CuO$_{4+δ}$
Creators: name: Belevtsev, B. I.
name: Dalakova, N. V.
name: Savitsky, V. N.
name: Bondarenko, A. V.
name: Panfilov, A. S.
name: Braude, I. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The resistive measurements were made to study the magnetic field-induced antiferromagnetic (AF) - weak ferromagnetic (WF) transition in La$_2$CuO$_4$ single-crystal. The magnetic field (DC or pulsed) was applied normally to the CuO$_2$ layers. The transition manifested itself in a drastic decrease of the resistance in critical fields of ~5-7 T. The study is the first to display the effect of the AF -WF transition on the conductivity of the La$_2$CuO$_4$ single-crystal in the parallel - to - CuO$_2$ layers direction. The results provide support for the 3-dimensional nature of the hopping conduction of this layered oxide.
description: 8 pages, 7 figures, RevTex
Oreodera omissa Melzer 1932
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Oreodera
Oreodera omissa

description: 64. Oreodera omissa Melzer, 1932
Type locality — Brazil, Rio de Janeiro: Itatiaia (Maromba, 1100 m). (MZSP). Distribution — Brazil (Goiás, Espírito Santo to Santa Catarina).
 Oreodera omissa Melzer, 1932b: 424, pl. 6, fig. 1; Zikán & Zikán, 1944: 34 (distr.); Zikán & Wygodzinsky, 1948: 61 (type); Zajciw, 1958a: 18, 23 (distr.); 1972a: 66 (distr.); 1974a: 76 (distr.); Bachmann & Di Iorio, 2002: 74 (types).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Out of the Black Box: Investigating the Experiential Impact of Psychotherapy with Refugees on Interpreters
Creators: name: Di Braccio, Martina
Publisher: name: University of East London
Year: 2020
Subjects: Interpreters
impact
experiences
support
psychotherapy
refugees
asylum seekers

description: Language interpreters are pivotal in ensuring equal access to psychological therapy for refugees and asylum seekers in the United Kingdom. However, historical conceptualisations of interpreters as ‘invisible’ in therapy appear to have contributed to a lack of research in this setting. The current study sets out to explore interpreters’ experiences of therapy with refugees and the professional support they need in this setting. Eleven interpreters participated in semi-structured interviews, which were then analysed using Thematic Analysis. Three overarching themes were identified: What is my Role?; Emotionally Connected vs Detached; and Current Context vs Aspiration. Results highlight participants’ experiences of an ambiguous and complex role and of a unique setting that poses technical and emotional challenges; interpreters' conceptualisation of their preferred support; the experienced precarity of an unregulated and poorly recognised profession; and the personal growth being an interpreter brings about. This study has clinical and policy implications, such as organisations’ obligations to offer specialised, multi-modal support to interpreters and the urgency of granting interpreting protection of title.
On the tensionless limit of gauged WZW models
Creators: name: Bakas, I.
name: Sourdis, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The tensionless limit of gauged WZW models arises when the level of the underlying Kac-Moody algebra assumes its critical value, equal to the dual Coxeter number, in which case the central charge of the Virasoro algebra becomes infinite. We examine this limit from the world-sheet and target space viewpoint and show that gravity decouples naturally from the spectrum. Using the two-dimensional black-hole coset SL(2,R)_k/U(1) as illustrative example, we find for k=2 that the world-sheet symmetry is described by a truncated version of W_{\infty} generated by chiral fields with integer spin s \geq 3, whereas the Virasoro algebra becomes abelian and it can be consistently factored out. The geometry of target space looks like an infinitely curved hyperboloid, which invalidates the effective field theory description and conformal invariance can no longer be used to yield reliable space-time interpretation. We also compare our results with the null gauging of WZW models, which correspond to infinite boost in target space and they describe the Liouville mode that decouples in the tensionless limit. A formal BRST analysis of the world-sheet symmetry suggests that the central charge of all higher spin generators should be fixed to a critical value, which is not seen by the contracted Virasoro symmetry. Generalizations to higher dimensional coset models are also briefly discussed in the tensionless limit, where similar observations are made.
description: 67 pages a note added and a few typos corrected