cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploring the meat–sex nexus through tweets
Creators: name: Dana Elena Murariu
name: Stefan Mann
Publisher: name: Zenodo
Year: 2025
Subjects: food, trends, Twitter data, societal norms, sexual discourses

description: This study investigates the intricate discourses surrounding the meat–sex nexus. Through an analysis of a major dataset comprising meat-related tweets with sexual content, the study delves into the cultural and gender dynamics involved. Employing word counts and objective hermeneutics, these findings are interpreted through the theoretical frameworks established by Carol J. Adams (1990), Jacques Derrida (1990), and other contemporary narratives in which the consumption of meat often reflects deeper societal and cultural values. The study elucidates how the image of meat is helpful in both bragging about and criticizing sexual practices and how the image of sex helps in the positioning of oneself relative to meat consumption. These findings enhance the understanding of the social and cultural ramifications of these discourses, thereby contributing to the broader discourse on gender, food, and societal norms.
AAPL, Chapter 21, Analysis of Shell Materials from the AAPL
Creators: name: Griffith, Carol
Publisher: name: Arizona State University (ASU)
Year: 2017
Subjects: subject: Salt-Gila Basin
valueUri: https://core.tdar.org/browse/geographic-keyword/82446/salt-gila-basin
subject: Gulf of California
valueUri: https://core.tdar.org/browse/geographic-keyword/79149/gulf-of-california
subject: Arizona
valueUri: https://core.tdar.org/browse/geographic-keyword/2/arizona
subject: Mojave
valueUri: https://core.tdar.org/browse/geographic-keyword/82964/mojave
subject: Gila Bend Region
valueUri: https://core.tdar.org/browse/geographic-keyword/82963/gila-bend-region
subject: New Mexico
valueUri: https://core.tdar.org/browse/geographic-keyword/21/new-mexico
subject: Santa Cruz River Valley
valueUri: https://core.tdar.org/browse/geographic-keyword/54245/santa-cruz-river-valley
subject: California
valueUri: https://core.tdar.org/browse/geographic-keyword/71/california
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Classic Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/8462/classic-hohokam
subject: Chumash
valueUri: https://core.tdar.org/browse/culture-keyword/2001/chumash
subject: Mogollon
valueUri: https://core.tdar.org/browse/culture-keyword/34/mogollon
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Preclassic Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/8505/preclassic-hohokam
subject: 110-007
valueUri: https://core.tdar.org/browse/site-name/82350/110-007
subject: 108-001
valueUri: https://core.tdar.org/browse/site-name/82349/108-001
subject: 140-003
valueUri: https://core.tdar.org/browse/site-name/82352/140-003
subject: 138-003
valueUri: https://core.tdar.org/browse/site-name/82351/138-003
subject: 045-002
valueUri: https://core.tdar.org/browse/site-name/82353/045-002
subject: 092-001
valueUri: https://core.tdar.org/browse/site-name/82344/092-001
subject: 093-001
valueUri: https://core.tdar.org/browse/site-name/82343/093-001
subject: 077-002
valueUri: https://core.tdar.org/browse/site-name/82346/077-002
subject: 074-002
valueUri: https://core.tdar.org/browse/site-name/82345/074-002
subject: 103-008
valueUri: https://core.tdar.org/browse/site-name/82348/103-008
subject: 103-005
valueUri: https://core.tdar.org/browse/site-name/82347/103-005
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Shell Analysis
valueUri: https://core.tdar.org/browse/other-keyword/40926/shell-analysis
subject: Environment Research
valueUri: https://core.tdar.org/browse/investigation-type/13/environment-research

description: All shell materials recovered from the AAPL project are included in this analysis. The shell assemblage consists of materials recovered from sites in four states along the pipeline path. Shell materials were recovered during both surface reconnaissance and later excavation. This is an incomplete chapter; missing pgs. 776-783.
Novel ultra-sensitive digital PCR assays for screening and detection of rare missense mutations in (proto)-oncogenes
Creators: name: Bidshahri, Arezoo (Roza)
Publisher: name: University of British Columbia
Year: 2017

description: Somatic mutations can lead to cancer, often by altering the activity of kinases within signaling pathways that control cell growth and proliferation. Targeted cancer therapeutics are designed and used to regulate these aberrant signaling pathways in cases where somatic mutations within kinase genes predict a positive patient response to those treatments. For example, the V600E mutation in BRAF, the gene coding for the BRAF serine threonine kinase, predicts the effectiveness of vemurafenib in treating metastatic melanoma, while the mutational status of codons G12/G13 in the KRAS gene predicts likely colorectal cancer patient response to the monoclonal antibody (mAb) cetuximab.¹-³ However, FDA approved assays currently used to detect missense mutations in BRAF V600 and KRAS G12/G13 are not capable of detecting clinically actionable mutations at mutational frequencies low enough to permit their robust application to early disease detection or minimal residual disease monitoring. Moreover, detection of all clinically actionable missense mutations is not certain or generally achieved, in part due to limitations to assay specificities and the inability to unequivocally discriminate missense mutations from synonymous germline sequence variations. This thesis addresses that limitation through the development and validation of a novel platform for creating highly sensitive assays against all possible missense mutations in an oncogenic hotspot codon or adjacent set of hotspot codons that ameliorates the known limitations to current FDA-approved assays. The platform is designed to enable development of assays against all possible missense mutations in oncogenic hotspots and, if required, unequivocally differentiate them from synonymous germline alleles. It utilizes droplet digital PCR (ddPCR) technology and chimeric wild-type specific LNA/DNA probes to create a novel “WT-negative” screening paradigm. The platform is applied to the creation of two new assays of potential clinical use in cancer diagnostics and theranostics. The first provides a reliable and sensitive screening and detection of all known clinically actionable mutations in BRAF V600, and the second achieves the same for KRAS G12/G13. Both assays show complete diagnostic accuracy when applied to formalin-fixed paraffin-embedded (FFPE) tumor specimens from metastatic colorectal cancer patients deficient for Mut L homologue-1.
Hohokam Social Structure and Irrigation Management: The Ceramic Evidence from the Central Phoenix Basin
Creators: name: Sulgi Lotze
Publisher: name: Arizona State University (ASU)
Year: 1994
Subjects: subject: South Central Arizona
valueUri: https://core.tdar.org/browse/geographic-keyword/82525/south-central-arizona
subject: Salt River Valley
valueUri: https://core.tdar.org/browse/geographic-keyword/2784/salt-river-valley
subject: Arizona
valueUri: https://core.tdar.org/browse/geographic-keyword/2/arizona
subject: Central Phoenix Basin
valueUri: https://core.tdar.org/browse/geographic-keyword/82588/central-phoenix-basin
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Rock Art
valueUri: https://core.tdar.org/browse/site-type/361/rock-art
subject: Petroglyph
valueUri: https://core.tdar.org/browse/site-type/363/petroglyph
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Methodology, Theory, or Synthesis
valueUri: https://core.tdar.org/browse/investigation-type/6/methodology-theory-or-synthesis

description: The prehistoric Hohokam people of south-central Arizona are best known for their large and extensive irrigation works. However, just how the administration of the canal systems articulated with the organization of Hohokam society is an interesting and unresolved issue. In this study, substantial gains are made for reconstructing Hohokam social structure, the degree to which it was shaped by their irrigation economy, and the evolving interplay between hydraulic management and the pattern of Hohokam social relationships over time. A methodology is developed, based on the exchange of utilitarian ceramics over short distances (as little as 5 km), in order to trace social interaction between Hohokam populations who lived in the central Phoenix Basin between A.D. 1100 and 1400. Applications of the methodology show that hydraulic management had a pervasive influence on the organization of Hohokam social networks. In addition, there is new evidence to suggest an increase in Hohokam social complexity around A.D. 1275 that may have been directly linked to the inherent asymmetrical control of water in large irrigation economies. The ceramic methodology consists of two parts. First, it is demonstrated with geologic mapping, petrographic analyses, and electron microprobe assays that the production sources of Hohokam utilitarian wares are closely associated with the pottery’s temper, thereby enabling the participants in the exchange transaction to be identified. Second, the social relationship between the interacting parties can be inferred on the basis of the pottery’s exchange value, which, in turn, is determined by an analysis of ceramic production and use. This ability to assess who among the Hohokam interacted with whom and the nature of their social ties provides a novel and powerful approach to study Hohokam social structure, which complements other approaches currently used by archaeologists.
Young stellar clusters and associations in M33
Creators: name: Grossi, M.
name: Corbelli, E.
name: Giovanardi, C.
name: Magrini, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyse multi-wavelength observations of 32 young star clusters and associations in M33 with known oxygen abundance (8 < 12 + log(O/H) < 8.7), using ultraviolet (UV), optical, mid-infrared (MIR), CO (1-0) and 21-cm line (HI) observations. We derive their spectral energy distribution, and we determine age, bolometric luminosities, masses and the extinction, by comparing the multi-band integrated photometry to single-age stellar population models. The stellar system ages range between 2 and 15 Myr, masses are between 3 x 10^2 and 4 x 10^4 M_sun, and the intrinsic extinction, A_V, varies from 0.3 to 1 mag. We find a correlation between age and extinction, and between the cluster mass and size. The MIR emission shows the presence of a dust component around the clusters whose fractional luminosity at 24 um, L_{24}/L_{Bol}, decreases with the galactocentric distance. However, the total IR luminosity inferred from L_{24} is smaller than what we derive from the extinction corrections. The Halpha luminosity predicted by population synthesis models is larger than the observed one, especially for low-mass systems (M < 10^4 M_sun). Such a difference is reduced, but not erased, when the incomplete sampling of the initial mass function (IMF) at the high-mass end is taken into account. Our results suggest that a non-negligible fraction of UV ionising and non-ionising radiation is leaking into the ISM outside the HII regions. This would be in agreement with the large UV and Halpha diffuse fractions observed in M33, but it implies that stellar systems younger than 3 Myr retain, on average, only 30% of their Lyman continuum photons. However, the uncertainties on cluster ages and the stochastic fluctuations of the IMF do not allow to accurately quantify this issue. We also consider the possibility that this discrepancy is the consequence of a suppressed or delayed formation of the most massive stars.
description: 17 pages, 13 figures. Accepted for publications in A&A; v2 --> Table 2 corrected because of a misprint in the FUV magnitudes
A Constraint-Based Approach to the Chiral Magnetic Effect
Creators: name: Brits, Lionel
name: Charbonneau, James
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a way to introduce the currents responsible for the Chiral Magnetic Effect, and similar phenomena, into the AdS/CFT description. Such currents are thought to occur in heavy ion collisions due to topologically non-trivial field configurations and in dense stars due to beta decay. They may be responsible for the P and CP odd effects seen at RHIC and the anomalously large velocities observed in some pulsars. We discuss the boundary conditions that allow the phenomenon to exist in real systems and show how one would introduce similar boundary conditions into a holographic model of QCD such that the current is reproduced.
description: 10 pages, References added, Updated to match published version
Steering Feedback in Dynamic Driving Simulators: The Influence of Steering Wheel Vibration and Vehicle Motion Frequency
Creators: name: Böhle, Maximilian
name: Schick, Bernhard
name: Müller, Steffen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The validity of the subjective evaluation of steering feedback in driving simulators is crucial for modern vehicle development. Although there are established objective steering characteristics for the assessment of both stationary and dynamic feedback behaviour, factors such as steering wheel vibrations and vehicle body motion, particularly in high-frequency ranges, present challenges in simulator fidelity. This work investigates the influence of steering wheel vibration and vehicle body motion frequency content on the subjective evaluation of steering feedback during closed-loop driving in a dynamic driving simulator. A controlled subject study with 30 participants consisting of a back-to-back comparison of a reference vehicle with an electrical power steering system and three variants of its virtual representation on a dynamic driving simulator was performed. Subjective evaluation focused on the representation of road feedback in comparison to the reference vehicle. The statistical analysis of subjective results show that there is a significant influence of the frequency content of both steering wheel torque and vehicle motion on the subjective evaluation of steering feedback in a dynamic driving simulator. The results suggest an influence of frequency content on the subjective evaluation quality of steering feedback characteristics that are not associated with the dynamic feedback behaviour in the context of established performance indicators.
description: 12 pages, 7 figures, 9 tables, submitted to the IEEE Transactions on Intelligent Vehicles
Optical Conductivity and Electronic Structure of CeRu4Sb12 under High Pressure
Creators: name: Okamura, H.
name: Kitamura, R.
name: Matsunami, M.
name: Sugawara, H.
name: Harima, H.
name: Sato, H.
name: Moriwaki, T.
name: Ikemoto, Y.
name: Nanba, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Optical conductivity [s(w)] of Ce-filled skutterudite CeRu4Sb12 has been measured at high pressure to 8 GPa and at low temperature, to probe the pressure evolution of its electronic structures. At ambient pressure, a mid-infrared peak at 0.1 eV was formed in s(w) at low temperature, and the spectral weight below 0.1 eV was strongly suppressed, due to a hybridization of the f electron and conduction electron states. With increasing external pressure, the mid-infrared peak shifts to higher energy, and the spectral weight below the peak was further depleted. The obtained spectral data are analyzed in comparison with band calculation result and other reported physical properties. It is shown that the electronic structure of CeRu4Sb12 becomes similar to that of a narrow-gap semiconductor under external pressure.
description: 8 pages, 9 figures
The singular fibre of the Hitchin map
Creators: name: Gothen, Peter B.
name: Oliveira, André
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H60, 14H40

description: Given any line bundle L of positive degree, on a compact Riemann surface, let $M_L^Λ$ be the moduli space of L-twisted Higgs pairs of rank 2 with fixed determinant isomorphic to $Λ$ and traceless Higgs field. We give a description of the singular fibre of the Hitchin map $H:M^L_Λ\to H^0(L^2)$, when the corresponding spectral curve has any singularity of type $A_{m-1}$. In particular, we prove directly that this fibre is connected.
description: 28 pages; v3; minor changes: added Proposition 3.7 and main Theorem 8.1 now also refers the fibre over zero; final version
Are all localizing subcategories of stable homotopy categories coreflective?
Creators: name: Casacuberta, Carles
name: Gutiérrez, Javier J.
name: Rosický, Jiří
Publisher: name: arXiv
Year: 2011
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18E30, 18G55, 55P42, 55P60, 03E55

description: We prove that, in a triangulated category with combinatorial models, every localizing subcategory is coreflective and every colocalizing subcategory is reflective if a certain large-cardinal axiom (Vopenka's principle) is assumed true. It follows that, under the same assumptions, orthogonality sets up a bijective correspondence between localizing subcategories and colocalizing subcategories. The existence of such a bijection was left as an open problem by Hovey, Palmieri and Strickland in their axiomatic study of stable homotopy categories and also by Neeman in the context of well-generated triangulated categories.
description: 29 pages; a few changes made in Section 2
Boundary stress tensor and counterterms for weakened AdS_3 asymptotic in New Massive Gravity
Creators: name: Giribet, Gaston
name: Leston, Mauricio
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Resorting to the notion of a stress tensor induced on the boundary of a spacetime, we compute the conserved charges associated to exact solutions of New Massive Gravity that obey weakened versions of AdS_3 asymptotic boundary conditions. The computation requires the introduction of additional counterterms, which play the role of regularizing the semiclassical stress tensor in the boundary theory. We show that, if treated appropriately, different ways of prescribing asymptotically AdS_3 boundary conditions yield finite conserved charges for the solutions. The consistency of the construction manifests itself in that the charges of hairy asymptotically AdS_3 black holes computed by this holography-inspired method exactly match the values required for the Cardy formula to reproduce the black hole entropy. We also consider new solutions to the equations of motion of New Massive Gravity, which happen to fulfill Brown-Henneaux boundary conditions despite not being Einstein manifolds. These solutions are shown to yield vanishing boundary stress tensor. The results obtained in this paper can be regarded as consistency checks for the prescription proposed in arXiv:1001.3598.
description: 13 pages. v2 minor typos corrected
Using linked health data to explore the epidemiology and impact of mental health and health behaviours in multiple sclerosis
Creators: name: McKay, Kyla Anne
Publisher: name: University of British Columbia
Year: 2018

description: Few population-based, methodologically rigorous studies have evaluated the association between mental health and health behaviours in MS. The goal of this dissertation is to contribute to the broader understanding of these relationships and their potential impact on MS. This dissertation was based on two main cohorts: 1) a multi-site clinic-based longitudinal cohort from across Canada; 2) a population-based health administrative and clinical cohort in British Columbia. A large (n=949) sample of MS patients were recruited from four Canadian MS clinics. Participants completed a series of questionnaires at three visits over two years. The prevalence of psychiatric comorbidities (depression [35%] and anxiety [54%]), and adverse health behaviours (smoking [24%] and non-adherence to disease-modifying therapies (DMTs) [22%]) was high. Alcohol dependence was associated with increased odds of anxiety (Odds Ratio (OR):1.84;95% confidence interval (CI):1.32–2.58) and depression (OR:1.53;95%CI:1.05–2.23), as was smoking (anxiety OR:1.29;95% CI:1.02–1.63; depression OR:1.37;95%CI:1.04–1.78). Non-adherence (<80% of expected doses reported as taken in the previous 30 days) was associated with alcohol dependence (OR:2.14;95% CI:1.23–3.75). When compared to adherence rates estimated from prescription dispensation information in pharmacy records in the prior year, self-reported non-adherence was found to be highly specific (0.96), but only moderately sensitive (0.38). Those who self-reported non-adherence were at high risk of non-adherence over the following year. We identified cases of mood or anxiety disorders using a validated algorithm applied to health administrative data. The presence of a mood or anxiety disorder was associated with significantly increased neurologic disability, measured by the Expanded Disability Status Scale (β-coefficient:0.45; p<0.0001) among 1250 incident cases of MS followed for an average of 9 years. Last, we identified incident cases of MS who did not access an MS clinic, using a validated algorithm applied to administrative data. Sex and socioeconomic status distributions were similar, but non-MS clinic users were older (46 vs 41 years, p<0.001), and had a higher comorbidity burden than MS clinic-users (Rate ratio:1.08;95%CI:1.02-1.15). MS is an unpredictable disease with considerable variability in health outcomes. This dissertation provides evidence that psychiatric conditions and adverse health behaviours are common, and may explain some of this heterogeneity.
Compressive high-frequency waves riding on an Alfvén/ion-cyclotron wave in a multi-fluid plasma
Creators: name: Verscharen, Daniel
name: Marsch, Eckart
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In this paper, we study the weakly-compressive high-frequency plasma waves which are superposed on a large-amplitude Alfvén wave in a multi-fluid plasma consisting of protons, electrons, and alpha particles. For these waves, the plasma environment is inhomogenous due to the presence of the low-frequency Alfvén wave with a large amplitude, a situation that may apply to space plasmas such as the solar corona and solar wind. The dispersion relation of the plasma waves is determined from a linear stability analysis using a new eigenvalue method that is employed to solve the set of differential wave equations which describe the propagation of plasma waves along the direction of the constant component of the Alfvén wave magnetic field. This approach also allows one to consider weak compressive effects. In the presence of the background Alfvén wave, the dispersion branches obtained differ significantly from the situation of a uniform plasma. Due to compressibility, acoustic waves are excited and couplings between various modes occur, and even an instability of the compressive mode. In a kinetic treatment, these plasma waves would be natural candidates for Landau-resonant wave-particle interactions, and may thus via their damping lead to particle heating.
description: 15 pages, 5 figures
In un mare di cambiamenti: il futuro delle coste Adriatiche
Creators: name: Santinelli, Veronica
Publisher: name: Zenodo
Year: 2021

description: Il nostro gruppo di ricerca è composto da esperti con differenti background: dall’oceanografia fisica all’ecologia marina, svolgendo le nostre attività tra il Dipartimento di Fisica (Bologna) e il Centro Interdipartimentale per le Scienze Ambientali (Ravenna). Attualmente siamo coinvolti nel progetto europeo Interreg Adriaclim con lo scopo di prevedere quali saranno i futuri effetti dei cambiamenti climatici lungo le coste Adriatiche sviluppando piani di adattamento ai livelli regionale e locale. Per fare questo, ci avvaliamo di analisi biogeochimiche dei sedimenti marini e di elaborazioni numeriche dei dati attraverso modelli oceanici e atmosferici.
On slice knots and patterns in knot homology
Creators: name: Ivshina, Ekaterina S.
name: Szabó, Zoltán
Publisher: name: Zenodo
Year: 2023

description: We provide the dataset used in the work titled “On slice knots and patterns in knot homology”. Each file named “data_{c}{l}.csv” provides computed invariants for knots with crossing number "c" and type "l" (where c ranges between 12-17 and "l" is either “a” for alternating knots or “n“ for non-alternating knots). Each CSV file contains the following five columns: 1. knot_names: the name of the knot in the Regina database (regina-normal.github.io/data.html); 2. kfh_total_ranks: the total rank of knot Floer homology; 3. determinants: the knot determinant; 4. {c}-crossing knots: label that specifies whether the knot is alternating or non-alternating.
description: The code used in this work is available on GitHub: https://github.com/eivshina/patterns-in-knot-floer-homology
Enhancement of magnetic anisotropy barrier in long range interacting spin systems
Creators: name: Borgonovi, F.
name: Celardo, G. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetic materials are usually characterized by anisotropy energy barriers which dictate the time scale of the magnetization decay and consequently the magnetic stability of the sample. Here we present a unified description, which includes coherent rotation and nucleation, for the magnetization decay in generic anisotropic spin systems. In particular, we show that, in presence of long range exchange interaction, the anisotropy energy barrier grows as the volume of the particle for on site anisotropy, while it grows even faster than the volume for exchange anisotropy, with an anisotropy energy barrier proportional to $V^{2-α/d}$, where $V$ is the particle volume, $α\leq d $ is the range of interaction and $d$ is the embedding dimension. These results shows a relevant enhancement of the anisotropy energy barrier w.r.t. the short range case, where the anisotropy energy barrier grows as the particle cross sectional area for large particle size or large particle aspect ratio.
description: 7 pages, 6 figures. Theory of Magnetic decay in nanosystem. Non equilibrium statistical mechanics of many body systems
Quantum deformation of two four-dimensional spin foam models
Creators: name: Fairbairn, Winston J.
name: Meusburger, Catherine
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct the q-deformed version of two four-dimensional spin foam models, the Euclidean and Lorentzian versions of the EPRL model. The q-deformed models are based on the representation theory of two copies of U_q(su(2)) at a root of unity and on the quantum Lorentz group with a real deformation parameter. For both models we give a definition of the quantum EPRL intertwiners, study their convergence and braiding properties and construct an amplitude for the four-simplexes. We find that both of the resulting models are convergent.
description: 45 pages, 4 figures, typos corrected, references added, proofs and explanations extended for readability
title: Исследование ферромагнитного резонанса в металлических ферромагнетиках
Creators: name: Лаврова, Ирина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: В работе исследован ферромагнитный резонанс в феррит-пьезоэлектрической структуре никель/кварц. Проведено экспериментальное исследование методом анализатора цепей. Получены графики зависимости коэффициента передачи от частоты при приложении внешнего магнитного поля.
Allopatric differentiation in the acoustic communication of a weakly electric fish from southern Africa, Marcusenius macrolepidotus (Mormyridae, Teleostei)
Creators: name: Lamml, Michael
name: Kramer, Bernd
Publisher: name: Universität Regensburg
Year: 2007
Subjects: subject: Acoustic communication; Aggression; Electric fish; Territoriality; Vocalisation
subject: 590 Tiere (Zoologie)

description: A few species of the weakly electric snoutfish, the African freshwater family Mormyridae, have been reported to vocalise. However, allopatric populations of a single species were never compared. Members of three allopatric Marcusenius macrolepidotus populations, originating from the Upper Zambezi River in Namibia, the Buzi River (Mozambique), and the Incomati River system in South Africa, vocalised with pulsatile growl- and tonal hoot sounds in dyadic confrontation experiments. A high rate of growling accompanied territorial and agonistic interactions and also non-threatening interactions between males and females, which in one pair appeared to be courtship. Growl sound characteristics of M. macrolepidotus from the Incomati system differed from those of the Upper Zambezi in a significantly higher frequency of the first harmonic (mean, 355 Hz vs 266 Hz). The two vocalising males from the Buzi River generated growls about twice as long as the other fish. Furthermore, the growl pulse period was about 4 ms in M. macrolepidotus from the Upper Zambezi River and from the Incomati system, but 6 ms in M. macrolepidotus from the Buzi River. Hoots were only observed in agonistic encounters. Hoot oscillograms showed a sinusoidal waveform, and the mean duration of this sound was similar in Incomati system fish (mean, 161 ms), Upper Zambezi fish (172 ms) and Buzi fish (103 and 145 ms for the two vocalising individuals). The mean frequency of the first hoot harmonic was higher in Incomati system fish (326 Hz) than in Upper Zambezi fish (245 Hz). Both growl and hoot occurred only in the presence of conspecifics, probably signalling the presence and condition of an opponent, territory owner or potential mate. This is the first evidence for (1) sound production and acoustical communication in another species and genus, M. macrolepidotus, from southern Africa to be (2) geographically differentiated.
Demystifying normativity : morality, error theory, and the authority of norms
Creators: name: Gerritsen, Eline
Publisher: name: The University of St Andrews
Year: 2023
Subjects: Normativity
Norms
Morality
Error theory
Metaethics

description: We are subject to many different norms telling us how to act, from moral norms to etiquette rules and the law. While some norms may simply be ignored, we live under the impression that others matter for what we ought to do. How can we make sense of this normative authority some norms have? Does it fit into our naturalist worldview? Many philosophers claim it does not. Normativity is conceived to be distinct from ordinary natural properties, making it mysterious. The mystery fuels a radical yet prominent scepticism about the existence of normative properties: if they are too strange to actually exist, there is nothing we ought to do. Some take this to mean, moreover, that nothing is morally right or wrong. We must critically examine the ideas behind these theories, which put both morality and normativity in general on the line. The aim of this thesis is to unravel the mystery of normativity. It uncovers and objects to the influential non-natural conception of it, arguing that we can capture normativity with natural properties. In particular, it explores how the authority of norms can be explained by the commitments of the people subject to them. In connection to this, it challenges the conceptual claim behind the view that all moral judgements are mistaken. Finally, it reveals that treating morality as a mere fiction has revolutionary practical implications. This emphasises the importance of the overall conclusion: we need not conceive of either moral or normative properties as too mysterious to exist.
Cohomology and profinite topologies for solvable groups of finite rank
Creators: name: Lorensen, Karl
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F16, 20JO6, 20E18 (primary), 20F18 (secondary)

description: Assume $G$ is a solvable group whose elementary abelian sections are all finite. Suppose, further, that $p$ is a prime such that $G$ fails to contain any subgroups isomorphic to $C_{p^\infty}$. We show that if $G$ is nilpotent, then the pro-$p$ completion map $G\to \hat{G}_p$ induces an isomorphism $H^\ast(\hat{G}_p,M)\to H^\ast(G,M)$ for any discrete $\hat{G}_p$-module $M$ of finite $p$-power order. For the general case, we prove that $G$ contains a normal subgroup $N$ of finite index such that the map $H^\ast(\hat{N}_p,M)\to H^\ast(N,M)$ is an isomorphism for any discrete $\hat{N}_p$-module $M$ of finite $p$-power order. Moreover, if $G$ lacks any $C_{p^\infty}$-sections, the subgroup $N$ enjoys some additional special properties with respect to its pro-$p$ topology.
description: This paper supersedes arXiv:1009.2645v5: the two theorems in the introduction to the latter paper are both corollaries to Theorem 1.1 in the present paper. In the second version, Theorem 1.1 is expressed in a slightly more general form than in the first version
Differentiation of courtship songs in parapatric sibling species of dwarf stonebashers from southern Africa (Mormyridae, Teleostei)
Creators: name: Lamml, Michael
name: Kramer, Bernd
Publisher: name: Universität Regensburg
Year: 2006
Subjects: subject: ACOUSTIC COMMUNICATION; ELECTRIC FISH; REPRODUCTION; SPECIES RECOGNITION; VARIABILITY; VOCALISATION
subject: 570 Biowissenschaften, Biologie
subject: 590 Tiere (Zoologie)

description: We describe the nocturnal courtship songs of male dwarf stonebashers, Pollimyrus castelnaui, from the Okavango River and its inland delta. We examined the question of whether the songs are sufficiently differentiated from those of its parapatric sibling species, the only recently discovered P. marianne from the Upper Zambezi River, to form a potential cue for mate choice. Both species vocalised two sound types in courtship, the moan and the grunt, which they combined into long songs in similar fashion. However, one sound type was clearly differentiated: while P. castelnaui moans were of a husky quality and composed of three or four broadband formants, P. marianne moans were more tonal, with a single spectral line dominating the first and any higher formants (and a smaller bandwidth BW−10 dB for the dominant frequency of the first formant). Moan and Grunt Duration and the moan Pulse Group Period (mPGP) were longer, and the latter more variable, in P. castelnaui compared to P. marianne (range of mPGP: 10-30 ms in P. castelnaui, 7-16.7 ms in P. marianne). P. castelnaui grunts were of longer duration and composed of more pulses than those of P. marianne. A single male from the contact zone between the Okavango and the Zambezi, the lower Kwando River, resembled P. castelnaui in moan BW−10 dB but P. marianne in Moan Duration and mPGP. Both southern African species thus vocalise in a species-specific fashion. Since in both species several characteristics of both moans and grunts show high between- and low within-male variability, mate choice may be selective for individual high-quality males characterised by acoustic features.
Detection noise bias and variance in the power spectrum and bispectrum in optical interferometry
Creators: name: Gordon, J. A.
name: Buscher, D. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Long-baseline optical interferometry uses the power spectrum and bispectrum constructs as fundamental observables. Noise arising in the detection of the fringe pattern gives rise to both variance and biases in the power spectrum and bispectrum. Previous work on correcting the biases and estimating the variances for these quantities typically includes restrictive assumptions about the sampling of the interferogram and/or about the relative importance of Poisson and Gaussian noise sources. Until now it has been difficult to accurately compensate for systematic biases in data which violates these assumptions. We seek a formalism to allow the construction of bias-free estimators of the bispectrum and power spectrum, and to estimate their variances, under less restrictive conditions which include both unevenly-sampled data and measurements affected by a combination of noise sources with Poisson and Gaussian statistics. We used a method based on the moments of the noise distributions to derive formulae for the biases introduced to the power spectrum and bispectrum when the complex fringe amplitude is derived from an arbitrary linear combinations of a set of discrete interferogram measurements. We simulated interferograms with different combinations of photon noise and read noise and with different fringe encoding schemes to illustrate the effects of these biases. We have derived formulae for bias-free estimators of the power spectrum and bispectrum which can be used with any linear estimator of the fringe complex amplitude. We have demonstrated the importance of bias-free estimators for the case of the detection of faint companions (for example exoplanets) using closure phase nulling. We have derived formulae for the variance of the power spectrum and have shown how the variance of the bispectrum could be calculated.
description: 9 pages, 3 figures. Submitted to A&A
Особливості проектування електродвигунів для авіації
Creators: name: Володимирівна, Шевченко Валентина
name: Зубань Є.С.
Publisher: name: Zenodo
Year: 2016
Subjects: електричні машини
електродвигуни для авіації
електромагнітні параметри
перевантажувальна здатність

description: Українською: [Шевченко В.В., Зубань Є.С. Особливості проектування електродвигунів для авіації // Тези доповідей 24-ї міжнародної науково-практичної конференції "Інформаційні технології: наука, техніка, технологія, освіта, здоров'я" (MicroCAD-2016), 18-20 травня 2016 року, Харків (ISSN 2222-2944), частина 2, секція 9 "Електромеханічне та електричне перетворення енергії". - Україна, Харків: НТУ "ХПІ", 2016. - С. 127. https://doi.org/10.5281/zenodo.2595187]

Ключові слова: електричні машини, електродвигуни для авіації, електромагнітні параметри, перевантажувальна здатність.

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Evidence for Parapatric Speciation in the Mormyrid Fish, Pollimyrus castelnaui (Boulenger, 1911), from the Okavango–Upper Zambezi River Systems: P. marianne sp. nov., Defined by Electric Organ Discharges, Morphology and Genetics
Creators: name: Kramer, Bernd
name: Van der Bank, Herman
name: Flint, Nicolette
name: Sauer-Gürth, Hedi
name: Wink, Michael
Publisher: name: Universität Regensburg
Year: 2003
Subjects: subject: allozymes; mitochondrial DNA; behaviour; cytochrome b; sequence analysis; clinal variation; phylogeny; phylogeography; Caprivi Strip
subject: 570 Biowissenschaften, Biologie
subject: 590 Tiere (Zoologie)

description: We report on parapatric speciation in the mormyrid fish,Pollimyrus castelnaui (Boulenger, 1911), from the Okavango and the Upper Zambezi River systems. We recognise samples from the Zambezi River as a distinct species, P. marianne, displaying an eastern phenotype of electric organ discharge (EOD) waveform (Type 3) that is distinct from the western EOD phenotype (Type 1) observed in P. castelnaui samples from the neighbouring Okavango. Samples from the geographically intermediate Kwando/Linyanti River (a tributary of the Zambezi that is also intermittently connected to the Okavango) presented a more variable third EOD phenotype (Type 2). In 13 out of 14 morphological characters studied, the Zambezi River samples differed significantly from P. castelnaui. Morphologically and in EOD characters, the Kwando/Linyanti fish are distinct from both P. castelnaui and P. marianne. Sequence analysis of the mitochondrial cytochrome b gene unambiguously reveals that specimens from the Zambezi River System form a well supported taxon which clearly differs from P. castelnaui from the Okavango (1.5–2.5% sequence divergence).Within specimens from theKwando–Zambezi System some geographic differentiation can be detected (nucleotide substitutions up to 0.6%); but groups cannot be resolved with certainty. Significant allozyme differences were found between the Okavango and all other EOD types from the Upper Zambezi System, and, within the Zambezi System, between the Kwando (Type 2) and Zambezi (Type 3) individuals. The low Wright’s fixation index values, the lack of fixed allele differences, and small genetic distances provide little evidence for speciation between groups within the Zambezi System, but moderate to great fixation index values and significant allele frequency differences were observed between the Okavango and the other fishes. It is concluded that within the Zambezi System, differentiation between Kwando/Linyanti and Zambezi populations (as revealed by morphology and EOD waveform comparisons) is so recent that substantial genetic (allozyme and mitochondrial sequence) differences could not have evolved, or were not detected.
Proximal Methods for Hierarchical Sparse Coding
Creators: name: Jenatton, Rodolphe
name: Mairal, Julien
name: Obozinski, Guillaume
name: Bach, Francis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Sparse coding consists in representing signals as sparse linear combinations of atoms selected from a dictionary. We consider an extension of this framework where the atoms are further assumed to be embedded in a tree. This is achieved using a recently introduced tree-structured sparse regularization norm, which has proven useful in several applications. This norm leads to regularized problems that are difficult to optimize, and we propose in this paper efficient algorithms for solving them. More precisely, we show that the proximal operator associated with this norm is computable exactly via a dual approach that can be viewed as the composition of elementary proximal operators. Our procedure has a complexity linear, or close to linear, in the number of atoms, and allows the use of accelerated gradient techniques to solve the tree-structured sparse approximation problem at the same computational cost as traditional ones using the L1-norm. Our method is efficient and scales gracefully to millions of variables, which we illustrate in two types of applications: first, we consider fixed hierarchical dictionaries of wavelets to denoise natural images. Then, we apply our optimization tools in the context of dictionary learning, where learned dictionary elements naturally organize in a prespecified arborescent structure, leading to a better performance in reconstruction of natural image patches. When applied to text documents, our method learns hierarchies of topics, thus providing a competitive alternative to probabilistic topic models.
Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the ATLAS Collaboration at the Large Hadron Collider is reported. The measurements are predominantly performed on proton$-$proton ($pp$) collision data recorded at a centre-of-mass energy of 13 TeV taken from 2015 to 2018, with an integrated luminosity of up to 140 fb$^{-1}$, with some results based on $pp$ and Pb+Pb data recorded at lower nucleon centre-of-mass energies. The results cover a wide range of topics, from strong production of particles at low energies and the spectroscopy of hadrons to perturbative QCD with hadronic jets and electroweak and strong production of single and multiple vector bosons. They provide precise measurements of fundamental constants and stringent tests of the Standard Model with unprecedented precision and in energy ranges never explored before. They are also used to explore the proton structure and to perform model-independent searches for new physics.
description: 108 pages in total, author list starting page 91, 53 figures, 0 tables, submitted to Physics Reports. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2023-20
The Complexity of Approximately Counting Stable Roommate Assignments
Creators: name: Chebolu, Prasad
name: Goldberg, Leslie Ann
name: Martin, Russell
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Complexity (cs.CC)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.1.3
subject: 68Q17

description: We investigate the complexity of approximately counting stable roommate assignments in two models: (i) the $k$-attribute model, in which the preference lists are determined by dot products of "preference vectors" with "attribute vectors" and (ii) the $k$-Euclidean model, in which the preference lists are determined by the closeness of the "positions" of the people to their "preferred positions". Exactly counting the number of assignments is #P-complete, since Irving and Leather demonstrated #P-completeness for the special case of the stable marriage problem. We show that counting the number of stable roommate assignments in the $k$-attribute model ($k \geq 4$) and the 3-Euclidean model($k \geq 3$) is interreducible, in an approximation-preserving sense, with counting independent sets (of all sizes) (#IS) in a graph, or counting the number of satisfying assignments of a Boolean formula (#SAT). This means that there can be no FPRAS for any of these problems unless NP=RP. As a consequence, we infer that there is no FPRAS for counting stable roommate assignments (#SR) unless NP=RP. Utilizing previous results by the authors, we give an approximation-preserving reduction from counting the number of independent sets in a bipartite graph (#BIS) to counting the number of stable roommate assignments both in the 3-attribute model and in the 2-Euclidean model. #BIS is complete with respect to approximation-preserving reductions in the logically-defined complexity class $#RHΠ_1$. Hence, our result shows that an FPRAS for counting stable roommate assignments in the 3-attribute model would give an FPRAS for all of $#RHΠ_1$. We also show that the 1-attribute stable roommate problem always has either one or two stable roommate assignments, so the number of assignments can be determined exactly in polynomial time.