cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Applications of the Hypergeometric Method
Creators: name: Sorvisto, Dayne
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: diophantine
subject: Approximation

description: We define an irrationality measure and show how irrationality measures can be used to bound the size of solutions to Thue equations. We give a review of some of the major results about binary Thue equations. We study the Hypergeometric Method. We prove an important theorem which shows how irrationality measures can be constructed from sequences of rational numbers. We explicitly construct irrationality measures for some degree 3 algebraic irrationalities. We look at the application of irrationality measures to binary Thue equations. Throughout this chapter we illustrate each theorem with an example equation using the irrationality measures we constructed. We look at applications of restricted irrationality measures to continued fractions and exponential Diophantine equations. We prove a theorem about the size of solutions to the generalized Ramanujan-Nagell equation.
Analysis supplement for: Investigating experiences of the Family Connections Program for supporters of individuals with a diagnosis of Borderline Personality Disorder
Creators: name: Fisher, Nicola
name: Keohane, Peter
name: Whalley, Ben
Publisher: name: Zenodo
Year: 2021
Subjects: DBT
BPD
Family Connections

description: Analysis supplement to support: Investigating experiences of the Family Connections Program for supporters of individuals with a diagnosis of Borderline Personality Disorder 
Darstellungen von behaarten Menschen mit Ambras Syndrom in Kunstwerken. Eine Schnittstelle zwischen Kunst und Medizin.
Creators: name: Vogel, Michael
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 700 Künste, Bildende Kunst allgemein

description: Petrus Gonsalvus litt wie fünf seiner sieben Kinder an einer speziellen Form von übermäßigem Haarwuchs (Hypertrichose). Einzelportraits von Petrus und zwei seiner Kinder zeigte Erzherzog Ferdinand II. in seiner Kunstkammer in Schloss Ambras. Als 1993 der dieser Form von Hypertrichose zugrunde liegende Defekt am Chromosom 8 gefunden wurde, wurde sie fortan als „Ambras-Syndrom“ bezeichnet. Die Betrachtung der Portraits der Familie Gonsalvus, zeigen, dass diese mit hoher Wahrscheinlichkeit das Ambras Syndrom hatten. Die charakteristischen Veränderungen mit der Verteilung der abnormen Haare im Gesichtsschädel und zusätzlichen Haaren, die dünner, länger und weniger pigmentiert sind als normale Kopfhaare sind auf allen Bildern gut zu erkennen.
Additional file 1 of RNA sequencing of blood in coronary artery disease: involvement of regulatory T cell imbalance
Creators: name: McCaffrey, Timothy A.
name: Toma, Ian
name: Yang, Zhaoquing
name: Katz, Richard
name: Reiner, Jonathan
name: Mazhari, Ramesh
name: Shah, Palak
name: Tackett, Michael
name: Jones, Dan
name: Jepson, Tisha
name: Falk, Zachary
name: Wargodsky, Richard
name: Shtakalo, Dmitry
name: Antonets, Denis
name: Ertle, Justin
name: Kim, Ju H.
name: Lai, Yinglei
name: Arslan, Zeynep
name: Aledort, Emily
name: Alfaraidy, Maha
name: Laurent, Georges St.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology
subject: Computational Biology

description: Additional file 1. Six supplementary figures related to the RNAseq analysis of CAD.
Transition disks: 4 candidates for ongoing giant planet formation in Ophiuchus (Research Note)
Creators: name: Orellana, Mariana
name: Cieza, Lucas. A.
name: Schreiber, M. R.
name: Merin, B.
name: Brown, J. M.
name: Pellizza, L. J.
name: Romero, Gisela A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A large set of Spitzer-selected transitional disks in the Ophiuchus molecular cloud was recently examined by Cieza et al (2010), and 4 of the targets were identified as (giant) planet-forming candidates based on the morphology of their Spectral Energy Distributions (SEDs), the apparent lack of stellar companions, and evidence for accretion. Here we characterize the structures of these disks modeling their optical, infrared and (sub)millimeter SEDs. We use the Monte Carlo radiative transfer package RADMC to construct a parametric model of the dust distribution in a flared disk with an inner cavity and calculate the temperature structure consistent with the density profile, in thermal equilibrium with the irradiating star. For each object, we conducted a Bayesian exploration of the parameter space generating Monte Carlo Markov Chains (MCMC) that allow the identification of the best fit parameters and to constrain their range of statistical confidence. Our calculations point to the presence of evacuated cavities with radii ~2-8 AU, consistent with having been carved by embedded giant planets. We found parameter values consistent with those previously given in the literature, indicating a mild degree of grain growth and dust settling, which deserves to be investigated with further modeling and follow up observations. Resolved images with (sub)millimeter interferometers are required to break some of the degeneracies of the models and better constrain the physical properties of these fascinating disks.
description: Accepted for publication in Astronomy & Astrophysics
Vsini-s for late-type stars from spectral synthesis in K-band region
Creators: name: Lyubchik, Yu.
name: Jones, H. R. A.
name: Pavlenko, Ya. V.
name: Pinfield, D. J.
name: Covey, K. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyse medium-resolution spectra (R\sim 18000) of 19 late type dwarfs in order to determine vsini-s using synthetic rather than observational template spectra. For this purpose observational data around 2.2 $μ$m of stars with spectral classes from G8V to M9.5V were modelled. We find that the Na I (2.2062 and 2.2090 $μ$m) and $^{12}$CO 2-0 band features are modelled well enough to use for vsini determination without the need for a suitable observational template spectra. Within the limit of the resolution of our spectra, we use synthetic spectra templates to derive vsini values consistent with those derived in the optical regime using observed templates. We quantify the errors in our vsini determination due to incorrect choice of model parameters \Teff, log $g$, $v_{\rm micro}$, [Fe/H] or FWHM and show that they are typically less than 10 per cent. We note that the spectral resolution of our data(\sim 16 km/s) limited this study to relatively fast rotators and that resolutions of 60000 will required to access most late-type dwarfs.
description: 8 pages, 4 figures, 3 tables, accepted to the MNRAS
Els mecanismes de participació d’associacions i col·legis professionals
Creators: name: COBDC,
Publisher: name: Item: revista de biblioteconomia i documentació
Year: 2023

description: En la caixa d’eines d’aquest número de la revista Ítem, centrat en l’associacionisme professional, hem volgut donar veu a les associacions i col·legis professionals del territoris de parla catalana. Presentem aquí el qüestionari que han respost l’Associació d’Arxivers Valencians (AAV), l’Associació de Professionals de l’Arxivística i la Gestió de Documents de Catalunya (AAC) i el Col·legi Oficial de Bibliotecaris i Documentalistes de la Comunitat Valenciana (COBDCV), centrat bàsicament en els mecanismes per al foment de la participació dels membres de totes tres organitzacions. Com veureu a continuació, de les respostes es desprèn que compartim objectius, reptes i inquietuds semblants, fet que augmenta el sentiment de pertinença a un col·lectiu.
description: Item: revista de biblioteconomia i documentació, 2023: Núm.:75
Model-based inversion of broadband seismic data
Creators: name: Gavotti, Patricia Esperanza
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Inversion
subject: Processing
subject: Impedance
subject: Broadband

description: Three study cases were used to evaluate the influence of broadband seismic data in inversion studies. In the first case, seismic data recorded in the Hussar Experiment showed the advantage of preserving the low-frequency component from acquisition through data processing. Processing performed on data from the Project Pioneer, proved the importance of taking special care of noise attenuation processes. The radial filter demonstrated to be useful in supressing coherent noise while retaining low-frequency signal. In both cases, lateral variation in the inversion results are associated to the presence of low-frequency signal in the seismic data suggesting that the seismic reflections are controlling the impedance response. In the third study, 2D seismic modelling was performed to simulate the CO2 injection scenario in the Nisku Formation in the Wabamun area. A decrease in the impedance values of ~7% is observed in the post-injection scenario and the identification of the CO2 plume is more evident in the inverted result than in stacked section.
Boron isotopes in blue diamond record seawater-derived fluids in the lower mantle
Creators: Regier, Margo E.
Smit, Karen V.
Chalk, Thomas B.
Stachel, Thomas
Stern, Richard A.
Smith, Evan M.
Foster, Gavin L.
Bussweiler, Yannick
Debuhr, C.
Burnham, Antony D.
Harris, Jeff W.
Pearson, D. Graham
Publisher: name: University of Alberta Library
Year: 2023

Abstract

Boron is a quintessential crustal element but its conspicuous presence in diamond – a mantle mineral – raises questions about potential subduction pathways for boron and other volatiles. It has been a long-standing goal to characterize the isotopic composition of boron in blue, boron-bearing (Type IIb) diamonds to reveal its origin. Mineral inclusions indicate that Type IIb diamonds crystallize at transition zone to lower mantle depths, meaning that if the boron is subducted it would trace a pathway of volatile elements into the deep mantle. Here, using off-line laser ablation sampling, we present the first boron isotope compositions, along with trace element contents and carbon isotope compositions, of a suite of blue diamonds mainly sourced from the Cullinan diamond mine in South Africa. The ten analyzed blue diamonds have a wide range in

B, between −9.2 ± 2‰ and −0.5 ± 2‰, compared to the more restricted range for mid-ocean ridge basalts (−7.1 ± 0.9‰). Carbon isotope values for the blue diamonds range between −20.6 and −1.8‰, with a mode at −17‰, significantly more negative than the main mantle mode at −5‰. Combined, the boron and carbon isotope compositions require fluid input from subducted oceanic lithosphere down into deep mantle source regions of blue diamonds. This finding highlights a deep subduction pathway for volatiles to stoke the source regions of deeply-derived magmas.
Spectrum of Kinetic Alfven Turbulence
Creators: name: Boldyrev, Stanislav
name: Perez, Jean C
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A model for strong kinetic Alfvén plasma turbulence at scales smaller than the ion gyroscale is proposed. It is argued that magnetic and density fluctuations are concentrated mostly at two-dimensional structures, which leads to their Fourier energy spectra $E(k_\perp)\propto k_{\perp}^{-8/3}$, where $k_\perp$ is the wave-vector component normal to the strong background magnetic field. The results are shown to be in good agreement with numerical simulations, and they can explain recent observations of magnetic and density fluctuations in the solar wind at sub-proton scales.
description: 5 pages, 3 figures, Submitted to Phys. Rev. Lett
A direct measurement of pmu xi from muon decay
Creators: name: Bueno, James
Publisher: name: University of British Columbia
Year: 2010

description: The asymmetry of the positron distribution in polarised muon decay provides confirmation that the weak interaction maximally violates parity conservation. Since 1957 the quantity Pmu xi has been measured with increasing precision, where Pmu is the polarisation of the muon, and xi is a parameter describing the asymmetry. Thus far the results have been consistent with the standard model using a (V-A) interaction. A new measurement of pmu xi using the TRIUMF Weak Interaction Symmetry Test (TWIST) spectrometer is presented in this thesis. The result is pmu xi = 1.00084 +- 0.00035 (stat.) -0.00063,+0.00165 (syst.), which is a factor of 3.2 more precise than a previous TWIST direct measurement, and a factor of 7.0 more precise than the pre-TWIST value. New limits are set on physics beyond the standard model, including the weak decay of right-handed muons, and left-right symmetric models where a (V+A) current is introduced to conserve parity at higher energies.
Ferdinand Kramers Frankfurter Hochschularchitektur
Creators: name: Dauss, Markus
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 700 Künste, Bildende Kunst allgemein

description: Ferdinand Kramer schuf ab 1952 in Frankfurt insgesamt 23 überwiegend im Stadtteil Bockenheim gelegene Bauten für die Johann Wolfgang Goethe-Universität. Die Kramer-Bauten haben das Erscheinungsbild wie die öffentliche Wahrnehmung der Hochschule entscheidend geprägt – zumindest bis zum sukzessiven Wegzug der Universität ab 2001 aus Bockenheim auf den Campus Westend. Der Standortwechsel steht nach über 20 Jahren kurz vor dem Abschluss. Allerdings hatten sich schon zuvor die Realisierungen des Baudirektors der Goethe-Universität durch Vernutzung und Vernachlässigung sukzessive in Relikte einer fordistischen Moderne verwandelt. Angesichts eines sich davon abhebenden, makellosen architektonischen Auftritts der Universität im Prestigeraum Westend lohnt sich ein kontextualisierender Rückblick auf die vergleichsweise nüchternen Bauten der Nachkriegsepoche.
Pneumococcal Vaccination of the Elderly During Visits to Acute Care Providers: Who Are Vaccinated?
Creators: name: Sabapathy, David
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Epidemiology
subject: Health Care Management
subject: Public Health
subject: pneumococcal
subject: vaccination
subject: elderly
subject: acute care
subject: health care visits
subject: ambulatory
subject: inpatient
subject: pneumococcal polysaccharide vaccine
subject: Vaccine
subject: vaccine coverage

description: Objectives: To understand factors associated with pneumococcal vaccination in the elderly during visits to acute care providers. Methods: We included all elderly 65 years of age and older enrolled in a health insurance registry in a large Canadian city. Pneumococcal vaccination status was determined using a vaccination administrative database. Unvaccinated elderly were linked to ambulatory and inpatient care databases to determine acute care visits. Logistic regression was used to determine odds ratios for vaccination during a first visit to an acute care provider in 2009. Results: Of 53,249 unvaccinated elderly, 23,574 presented to at least one acute care provider in 2009. Acute care visits were significantly associated with receipt of PPV (11.0% vs. 7.8%, risk adjusted odds ratio [OR]=1.53; 95% confidence interval [CI]=1.44,1.62), particularly ambulatory care visits during influenza season (OR=4.36; 95% CI=2.86,6.66) and inpatient visits with lengths of stay >14 days (OR=7.71, 95% CI=4.41,13.47). Conclusions: Acute care visits hold potential to increase PPV coverage in the elderly and were associated with greater pneumococcal vaccine uptake during the annual influenza season and long hospital stays.
Additional file 2 of RNA sequencing of blood in coronary artery disease: involvement of regulatory T cell imbalance
Creators: name: McCaffrey, Timothy A.
name: Toma, Ian
name: Yang, Zhaoquing
name: Katz, Richard
name: Reiner, Jonathan
name: Mazhari, Ramesh
name: Shah, Palak
name: Tackett, Michael
name: Jones, Dan
name: Jepson, Tisha
name: Falk, Zachary
name: Wargodsky, Richard
name: Shtakalo, Dmitry
name: Antonets, Denis
name: Ertle, Justin
name: Kim, Ju H.
name: Lai, Yinglei
name: Arslan, Zeynep
name: Aledort, Emily
name: Alfaraidy, Maha
name: Laurent, Georges St.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology
subject: Computational Biology

description: Additional file 2. Ten supplementary tables providing transcript details for the RNAseq analysis of CAD.
On the structure of genealogical trees associated with explosive Crump--Mode--Jagers branching processes
Creators: name: Iyer, Tejas
name: Lodewijks, Bas
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: Explosive Crump-Mode--Jagers branching processes
subject: super-linear preferential attachment
subject: preferential attachment with fitness
subject: random recursive trees
subject: condensation
subject: 60J80
subject: 90B15
subject: 05C80

description: We study the structure of genealogical trees associated with explosive Crump--Mode-Jagers branching processes (stopped at the explosion time), proving criteria for the associated tree to contain a node of infinite degree (a emphstar) or an infinite path. Next, we provide uniqueness criteria under which with probability 1 there exists exactly one of a unique star or a unique infinite path. Under the latter uniqueness criteria we also provide an example where, with strictly positive probability less than 1, there exists a unique star in the model. We thus illustrate that this probability is not restricted to being 0 or 1. Moreover, we provide structure theorems when there is a star, where we prove that certain trees appear as sub-trees in the tree infinitely often. We apply our results to a general discrete evolving tree model, named emphexplosive recursive trees with fitness. As a particular case, we study a family of emphsuper-linear preferential attachment models with fitness. For these models, we derive phase transitions in the model parameters in three different examples, leading to either exactly one star with probability 1 or one infinite path with probability 1 with every node having finite degree. Furthermore, we highlight examples where sub-trees T of empharbitrary size can appear infinitely often; behaviour that is markedly distinct from super-linear preferential attachment models studied in the literature so far.
Can we truly transfer an actor's genuine happiness to avatars? An investigation into virtual, real, posed and spontaneous faces
Creators: name: Peres, Vitor Miguel Xavier
name: Molin, Greice Pinho Dal
name: Musse, Soraia Raupp
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A look is worth a thousand words is a popular phrase. And why is a simple look enough to portray our feelings about something or someone? Behind this question are the theoretical foundations of the field of psychology regarding social cognition and the studies of psychologist Paul Ekman. Facial expressions, as a form of non-verbal communication, are the primary way to transmit emotions between human beings. The set of movements and expressions of facial muscles that convey some emotional state of the individual to their observers are targets of studies in many areas. Our research aims to evaluate Ekman's action units in datasets of real human faces, posed and spontaneous, and virtual human faces resulting from transferring real faces into Computer Graphics faces. In addition, we also conducted a case study with specific movie characters, such as SheHulk and Genius. We intend to find differences and similarities in facial expressions between real and CG datasets, posed and spontaneous faces, and also to consider the actors' genders in the videos. This investigation can help several areas of knowledge, whether using real or virtual human beings, in education, health, entertainment, games, security, and even legal matters. Our results indicate that AU intensities are greater for posed than spontaneous datasets, regardless of gender. Furthermore, there is a smoothing of intensity up to 80 percent for AU6 and 45 percent for AU12 when a real face is transformed into CG.
description: To be published in Simp\'osio Brasileiro de Jogos e Entretenimento Digital - SBGames 2023
title: Managing human resources in international development organisations
Creators: name: Yusuf, Rebecca A. T.
Publisher: name: University of Reading
Year: 2023

description: This thesis explores the phenomenon of diverse workforces, comprising of expatriates and 
host country nationals (HCNs) working in International Development Organisations 
(IDOs). Nigeria is used as a research site to address specific and related research questions 
(RQs) regarding how HRM practices impact expatriates and HCNs' workplace 
relationships. It also addresses how the COVID-19 pandemic has affected the allocation of 
human resources within these IDOs, as well as how these changes affect individual's 
careers.
Three empirical papers address the key RQs. The first empirical paper examines 
expatriates' and HCNs' perceptions of HRM practices within IDOs. These practices also 
generate outcomes, which ultimately influence how these two groups relate. A second 
empirical paper describes some imbalance caused by increased investment in remote 
working technologies during the pandemic, affecting expatriates and HCNs roles. The 
thesis acknowledges that IDOs are structured differently. Thus, IDOs respond differently 
to COVID-19 pressures and changes. Thirdly, organisations should understand why 
expatriates and HCNs pursue specific career paths. During time 1 of data collection, the 
career orientations of HCNs and IDO expatriates are further explored in a third empirical 
paper. During the COVID-19 pandemic, these attributes tend to fade.
The thesis contributes to both theory and practice. It considers multiple stakeholder 
perspectives. Interviews are conducted with expatriates, HCNs, HR managers, and 
government agency representatives. Therefore, employee perceptions of HRM practices, 
and government agencies' objectives and procedures are clarified. These can also be linked 
to IDO’s HRM and wider organisational practices and to give a clearer depiction of the 
phenomena. A partially longitudinal design is also used to study human resource allocation 
and the career orientations of expatriates and HCNs. Within the context of IDOs in Nigeria, the study compares two distinctive groups of workers and offers valuable managerial 
implications.
Spatial structure of Cooper pairs in nuclei
Creators: name: Matsuo, Masayuki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the spatial structure of the Cooper pair in dilute neutron matter and neutron-rich nuclei by means of the BCS theory and the Skyrme-Hartree-Fock-Bogioliubov model, respectively. The neutron pairing in dilute neutron matter is close to the region of the BCS-BEC crossover in a wide density range, giving rise to spatially compact Cooper pair whose size is smaller than the average interaparticle distance. This behavior extends to moderate low density ($\sim 10^{-1}$ of the saturation density) where the Cooper pair size becomes smallerst ($\sim 5$ fm). The Cooper pair in finite nuclei also exhibits the spatial correlation favoring the coupling of neutrons at small relative distances $r \lesim 3$ fm with large probability. Neutron-rich nuclei having small neutron separation energy may provide us opportunity to probe the spatial correlation since the neutron pairing and the spatial correlation persists also in an area of low-density neutron distribution extending from the surface to far outside the nucleus.
description: 13 pages, 5 figures, chapter in "Fifty Years of Nuclear BCS", eds. R.A. Broglia and V.Zelevinsky
Observation of a Planar Isomer of the N2O-(C2H2)2 Trimer
Creators: name: Sheybani-Deloui, Sahar
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Chemistry--Physical
subject: Physics
subject: Physics--Molecular
subject: Observation
subject: Planar
subject: N2O-(C2H2)2

description: Spectra of clusters of nitrous oxide-acetylene trimer formed in a pulsed supersonic slit-jet expansion have been recorded by exciting the nitrous oxide (N2O) fundamental band ( 2224 cm-1) using a quantum cascade laser. High-resolution infrared spectra of the weakly bound N2O – (C2H2)2 trimer were fitted to a semi-rigid asymmetric rotor Hamiltonian. The band is an a/b-type hybrid band with the rotational constants of A = 87 ) MHz, B = 0 67 0) MHz and C = 8 6 6 ) MHz, satisfying the planarity condition. In addition to the normal istopologue, 15N2O – (C2H2)2 and N2O – (C2D2)2 have been also observed to corroborate the determination of the structure. A cluster calculation program was used to perform semi-empirical calculations on N2O – (C2H2)2 trimer by using the well-known Muenter’s distributed multipole potentials and Powell minimization method. .According to these calculations, N2O – (C2H2)2 trimer should have a planar structure at the lowest energy minimum which agrees fairly well with the experimental structure. The two angles between the acetylene and nitrous oxide could not be determined based on the experimental results. The inability to determine these angles may be attributable to the large amplitude motion between the C2H2 monomers, which has been observed in C2H2 dimer, C2D2 dimer and OCS – (C2H2)2. The tunneling motion causes the splitting of energy levels. In the spectrum of N2O – (C2H2)2 trimer, no splittings within the resolution of the experiment (75 MHz) are observed that can be attributed to the large amplitude motion between the C2H2 monomers.
THE CURRENT STATE OF DIAGNOSIS, TREATMENT AND PROGNOSIS OF THE COMORBID COURSE OF MALIGNANT TUMORS AND PULMONARY TUBERCULOSIS  (Literature review)
Creators: name: Usmanov, I.H.
name: Iskandarova, I.M.
Publisher: name: Zenodo
Year: 2023

description: One of the urgent problems of modern phthisiology is the combination of tuberculosis with oncological diseases. This is primarily due to the steady increase in the number of patients with malignant neoplasms in recent years against the background of the ongoing tense situation with tuberculosis. In the annual report of the World Health Organization in 2018, tuberculosis was named one of the 10 main causes of death from diseases in the world [6].
The 12th century Magdeburg bronze doors in Novgorod: an overview of Russian research
Creators: name: Makhortykh, Serhii
name: Mödlinger, Marianne
name: Utz, Judith
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 700 Künste, Bildende Kunst allgemein

description: This paper summarises for the first time in English over 200 years of Russian research on the 12th century bronze doors in the Western portal of St. Sophia cathedral in Novgorod (Russia) in order to create a more solid base for further international research on these doors. As researchers often copied the work of their predecessors, we will focus in particular on new results obtained by Russian research since the 19th century and how these influenced, or were influenced by, central European work on the bronze doors. We will also consider the confusion created by previous research referring to the doors – and the other medieval bronze doors in the same cathedral – as Korsunian, Sartunian or Sigtunian doors. Today there is no doubt that the production of the bronze doors in Magdeburg 1152–1154 is associated with the masters Riquin and Weissmuth. However, it remains unclear how the doors travelled from Płock, Poland, for which they were probably made, to Novgorod in the mid-15th century at the latest, when they underwent restoration work by the Russian master Avram.
The Chemical Abundances of Stars in the Halo (CASH) Project. II. A Sample of 16 Extremely Metal-poor Stars
Creators: name: Hollek, Julie K.
name: Frebel, Anna
name: Roederer, Ian U.
name: Sneden, Christopher
name: Shetrone, Matthew
name: Beers, Timothy C.
name: Kang, Sung-Ju
name: Thom, Christopher
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a comprehensive abundance analysis of 20 elements for 16 new low-metallicity stars from the Chemical Abundances of Stars in the Halo (CASH) project. The abundances have been derived from both Hobby-Eberly Telescope High Resolution Spectrograph snapshot spectra (R~15,000) and corresponding high-resolution (R~35,000) Magellan MIKE spectra. The stars span a metallicity range from [Fe/H] from -2.9 to -3.9, including four new stars with [Fe/H]
description: Accepted for publication in ApJ. 22 pages (emulateapj), 15 figures
Comparative study of three-nucleon potentials in nuclear matter
Creators: name: Lovato, Alessandro
name: Benhar, Omar
name: Fantoni, Stefano
name: Schmidt, Kevin E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A new generation of local three-body potentials providing an excellent description of the properties of light nuclei, as well as of the neutron-deuteron doublet scattering length, has been recently derived. We have performed a comparative analysis of the equations of state of both pure neutron matter and symmetric nuclear matter obtained using these models of three-nucleon forces. None of the considered potentials simultaneously explains the empirical equilibrium density and binding energy of symmetric nuclear matter. However, two of them provide reasonable values of the saturation density. The ambiguity concerning the treatment of the contact term of the chiral inspired potentials is discussed.
description: 14 pages, 8 figures
Rate of alignment and communication using quantum systems in the absence of a shared frame of reference
Creators: name: Skotiniotis, Michael
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Physics--Theory
subject: Quantum
subject: Physics
subject: Information

description: Quantum information theory is concerned with the storage, transmission, and manipulation of information that is represented in the degrees of freedom of quantum systems. These degrees of freedom are described relative to an external frame of reference. The lack of a requisite frame of reference imposes restrictions on the types of states quantum systems can be prepared in and the type of operations that can be performed on quantum systems. This thesis is concerned with the communication between two parties that lack a shared frame of reference. Specifically, I introduce a protocol whereby the parties can align their respective frames of reference, and a protocol for communicating quantum information in a reference frame independent manner. Using the accessible information to quantify the success of a reference frame alignment protocol I propose a new measure-the alignment rate-for quantifying the ability of a quantum state to stand in place of a classical frame of reference. I show that for the case where Alice and Bob lack a shared frame of reference associated with the groups G=U(1) and G=Z_M (the finite cyclic group of M elements), the alignment rate is equal to the regularized, linearized G-asymmetry. The latter is a unique measure of the frameness of a quantum state and my result provides an operational interpretation of the G-asymmetry that was thus far lacking. In addition, I show that the alignment rate for finite cyclic groups of more than three elements is super-additive under the tensor product of two distinct pure quantum states. The latter is, to my knowledge, the first instance of a regularized quantity that exhibits super-additivity. In addition, I propose a reference-frame-independent protocol for communicating quantum information in the absence of a shared frame of reference associated with a general finite group G. The protocol transmits m logical qudits using r+m physical qudits prepared in a specific state that is reference-frame invariant. Measuring the first r qudits allows one to infer the unitary correction that is required to retrieve the remaining m qudits with perfect fidelity. Moreover, the number of ancillary qudits, r, is finite and depends only the group G associated with the requisite frame of reference. I show that the number of single and two-qubit gates required to encode and decode m logical qudits into m+r physical qudits scales linearly with m and the number of group elements \lvert G\rvert. Furthermore, the number of single and two-qubit gates required per logical qudit m is constant allowing for a more efficient implementation than the best currently known reference frame independent protocols.
Programm und Diagramm. Überlegungen zum digitalen Bild und zur Automatisierung anhand der Computergrafik der 1960er Jahre von Frieder Nake
Creators: name: Rottmann, Michael
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: 700 Künste, Bildende Kunst allgemein

description: In diesem Aufsatz werden anhand der Computergrafik der 1960er Jahre von Frieder Nake medientheoretische Überlegungen zum digitalen Bild und zur Automatisierung angestellt. In einer historisch-praxeologischen Perspektive werden Schaffen und Produktion rekonstruiert und analysiert, um den Fokus auf technisch-mediale Bedingtheiten, auf Prozesse, Handlungen und derart die historische Verfasstheit des Bildlichen zu lenken. Aufgezeigt wird die bedeutende Rolle des Diagramms im Kontext der Programmierung und folglich, dass Code und Bild nicht mehr binär, sondern nur gemeinsam mit dem Diagramm zu denken sind. Geleistet wird ein Beitrag zur Geschichte und Theorie der Zeichnung beziehungsweise Grafik, digitalen Kultur sowie Entwurfs- und Schaffensprozesse.
Radial elasticity of multi-walled carbon nanotubes
Creators: name: Palaci, Ismael
name: Fedrigo, Stephan
name: Brune, Harald
name: Klinke, Christian
name: Chen, Michael
name: Riedo, Elisa
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report an experimental and a theoretical study of the radial elasticity of multi-walled carbon nanotubes as a function of external radius. We use atomic force microscopy and apply small indentation amplitudes in order to stay in the linear elasticity regime. The number of layers for a given tube radius is inferred from transmission electron microscopy, revealing constant ratios of external to internal radii. This enables a comparison with molecular dynamics results, which also shed some light onto the applicability of Hertz theory in this context. Using this theory, we find a radial Young modulus strongly decreasing with increasing radius and reaching an asymptotic value of 30 +/- 10 GPa.
description: 5 pages, 3 figures
Phase Behavior Modeling of Complex Hydrocarbon Systems Applicable to Solvent Assisted Recovery Processes
Creators: name: Bayestehparvin, Bita
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Energy
subject: Engineering--Petroleum
subject: Phase Behavior
subject: Bitumen
subject: Equation of State
subject: Characterization
subject: Modeling

description: Solvent assisted recovery processes have taken significant attention recently. It has been shown that co-injection of solvent and steam can increase bitumen production to a rate higher than steam injection alone. The major shortcoming in this area is the lack of basic knowledge relevant to the solvent/heat assisted recovery processes. The objective of this project is to develop an understanding of the phase behaviour of bitumen/solvent systems with four milestones. First, a phase behaviour model based on the Peng-Robinson equation of state has been developed and validated for simple systems. Second, the available mixing rules for computing the co-volumes of polar and non-polar mixtures were evaluated. Third, bitumen was characterized in order to estimate its critical properties based on the boiling point distribution from the simulated distillation data. The boiling point distribution was modeled using probability distribution functions. Finally, the results for the phase behaviour of solvent (e.g. methane, ethane and carbon dioxide)/bitumen (Athabasca, Cold Lake) systems were modeled with an EoS for different operating conditions.
Is it Safe to Drink the Town Water?
Creators: name: Williams, Keri Lynn
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Public Health
subject: Water Quality

description: In response to the public health controversy surrounding the drinking water in Fort Chipewyan, Alberta this study assessed the safety of the treated town water based on the national standards outlined in the Guidelines for Canadian Drinking Water Quality (GCDWQ). Chemical, physical, and microbiological parameters reported from 2006 to 2011 were compared to the 2010 or 2012 GCDWQ and four experts in water quality, treatment and public health were interviewed. Of the eighty-one chemical and physical parameters included in the 2010 and 2012 GCDWQ, and assessed in this study, aluminum, iron and temperature exceeded the guidelines twice, once and fifteen times respectively. Monthly turbidity averages from 2006 to 2011 also exceeded the 2012 guideline in sixty-one of seventy averages. Interviews with experts indicate the treated water is potable, however together these results raise questions around the quality of water data and the complexities of communicating these data to the public.
Risk and Reward: An Exploratory Study of Backcountry Snowboarders
Creators: name: Plottel, Marcus
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Snowboarding
subject: risk
subject: Edgework
subject: Serious Leisure
subject: Backcountry

description: This study explores and outlines the perceptions of risk of backcountry snowboarders. It addresses backcountry riders’ motivations to voluntarily negotiate hazards in this ostensibly risky recreational activity. Through participant observation and interviews, this work explores how concepts including commercialization and commodification, edgework, and self-control contribute to the identity management of backcountry snowboarders. Importantly, this thesis analyses backcountry snowboarding through the serious leisure paradigm, wherein participation contributes to riders’ perceptions of risk and motivations to continue participation. This work contrasts the risk perceptions of professional backcountry snowboarders with amateur participants, outlining the fundamental differences in their experiences of voluntary risk in this activity. Findings indicate that snowboarding should be studied as a figuration rather than as a subculture. Furthermore, authentic participants construct their primary social identities through this serious leisure pursuit, negotiating barriers to participation and achieving self-actualization through a type of self-control that would otherwise be unavailable in contemporary society.
Shape diagram of vesicles in Poiseuille flow
Creators: name: Coupier, Gwennou
name: Farutin, Alexander
name: Minetti, Christophe
name: Podgorski, Thomas
name: Misbah, Chaouqi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Soft bodies flowing in a channel often exhibit parachute-like shapes usually attributed to an increase of hydrodynamic constraint (viscous stress and/or confinement). We show that the presence of a fluid membrane leads to the reverse phenomenon and build a phase diagram of shapes --- which are classified as bullet, croissant and parachute --- in channels of varying aspect ratio. Unexpectedly, shapes are relatively wider in the narrowest direction of the channel. We highlight the role of flow patterns on the membrane in this response to the asymmetry of stress distribution.
description: 10 pages, 11 figures, To appear in Phys. Rev. Lett
RX J1548.9+0851, a fossil cluster?
Creators: name: Eigenthaler, P.
name: Zeilinger, W. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Fossil galaxy groups are spatially extended X-ray sources with X-ray luminosities above L_X,bol > 10^42 h_50^-2 ergs s^-1 and a central elliptical galaxy dominating the optical, the second-brightest galaxy being at least 2 magnitudes fainter in the R band. Whether these systems are a distinct class of objects resulting from exceptional formation and evolution histories is still unclear, mainly due to the small number of objects studied so far, mostly lacking spectroscopy of group members for group membership confirmation and a detailed kinematical analysis. To complement the scarce sample of spectroscopically studied fossils down to their faint galaxy populations, the fossil candidate RX J1548.9+0851 (z=0.072) is studied in this work. Our results are compared with existing data from fossils in the literature. We use ESO VLT VIMOS multi-object spectroscopy to determine redshifts of the faint galaxy population and study the luminosity-weighted dynamics and luminosity function of the system. The full-spectrum fitting package ULySS is used to determine ages and metallicities of group members. VIMOS imaging data are used to study the morphology of the central elliptical. We identify 40 group members spectroscopically within the central ~300 kpc of the system and find 31 additional redshifts from the literature, resulting in a total number of 54 spectroscopically confirmed group members within 1 Mpc. RX J1548.9+0851 is made up of two bright ellipticals in the central region with a magnitude gap of m_1,2 = 1.34 in the SDSS r' band leaving the definition of RX J1548.9+0851 being a fossil to the assumption of the virial radius. We find a luminosity-weighted velocity dispersion of 568 km s^-1 and a mass of ~2.5 x 10^14 M_sun for the system confirming previous studies that revealed fossils to be massive. (abridged)
description: 13 pages, 13 figures, accepted for publication in A&A
Superfluid stiffness renormalization and critical temperature enhancement in a composite superconductor
Creators: name: Wachtel, Gideon
name: Bar-Yaacov, Assaf
name: Orgad, Dror
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study a model of a composite system constructed from a "pairing layer" of disconnected attractive-U Hubbard sites that is coupled by single-particle tunneling, t_perp, to a disordered metallic layer. For small inter-layer tunneling the system is described by an effective long-range XY phase model whose critical temperature, T_c, is essentially insensitive to the disorder and is exponentially suppressed by quantum fluctuations. T_c reaches a maximum for intermediate values of t_perp, which we calculate using a combination of mean-field, classical and quantum Monte Carlo methods. The maximal T_c scales as a fraction of the zero temperature gap of the attractive sites when U is smaller than the metallic bandwidth, and is bounded by the maximal T_c of the two-dimensional attractive Hubbard model for large U. Our results indicate that a thin, rather than a thick, metallic coating is better suited for the enhancement of T_c at the surface of a phase fluctuating superconductor.
description: 11 pages, 6 figures
Improved velocity law parameterization for hot star winds
Creators: name: Krticka, Jiri
name: Kubat, Jiri
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The velocity law of hot star winds is usually parameterized via the so-called beta velocity law. Although this parameterization stems from theoretical considerations, it is not the most accurate description of the wind velocity law that follows from hydrodynamical calculations. We show that the velocity profile of our hydrodynamical wind models is described much better by polynomial approximation. This approximation provides a better fit than the beta velocity law already for the same number of free parameters.
description: 3 pages, 2 figures, accepted for publication in Astronomy & Astrophysics
Cohomology of normic systems and fake Z_p extensions
Creators: name: Caputo, Luca
name: Nuccio, Filippo A. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R23, 11R20, 11R29, 11R34

description: We set up a general framework to study Tate cohomology groups of Galois modules along $\mathbb{Z}_p$-extensions of number fields. Under suitable assumptions on the Galois modules, we establish the existence of a five-term exact sequence in a certain quotient category whose objects are simultaneously direct and inverse systems, subject to some compatibility. The exact sequence allows one, in particular, to control the behaviour of the Tate cohomology groups of the units along $\mathbb{Z}_p$-extensions. As an application, we study the growth of class numbers along what we call "fake $\mathbb{Z}_p$-extensions of dihedral type". This study relies on a previous work, where we established a class number formula for dihedral extensions in terms of the cohomology groups of the units.
description: 55 pages. The original preprint has been split up in two articles, the first being arXiv:1803.04064. This work is the second one, focusing on fake $\mathbb{Z}_p$-extensions
Hacia la interpretabilidad de la detección anticipada de riesgos de depresión utilizando grandes modelos de lenguaje
Creators: name: Thompson, Horacio
name: Sapino, Maximiliano
name: Ferretti, Edgardo
name: Errecalde, Marcelo
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Early Detection of Risks (EDR) on the Web involves identifying at-risk users as early as possible. Although Large Language Models (LLMs) have proven to solve various linguistic tasks efficiently, assessing their reasoning ability in specific domains is crucial. In this work, we propose a method for solving depression-related EDR using LLMs on Spanish texts, with responses that can be interpreted by humans. We define a reasoning criterion to analyze users through a specialist, apply in-context learning to the Gemini model, and evaluate its performance both quantitatively and qualitatively. The results show that accurate predictions can be obtained, supported by explanatory reasoning, providing a deeper understanding of the solution. Our approach offers new perspectives for addressing EDR problems by leveraging the power of LLMs.
description: In Spanish language, In 30{\deg} Congreso Argentino de Ciencias de la Computaci\'on (CACIC 2024), La Plata, Argentina