cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Children's explanations of aggressive incidents at school within an attributional framework
Creators: name: Joscelyne, Trish
Publisher: name: The Open University
Year: 1999

description: Background and aims

 This study explores the types of attributions children make about school bullying situations and how these attributions may be related to subsequent behaviour and feelings.

 The relevant research background is explored - both from a bullying perspective and an attribution perspective. Psychological models that are thought relevant are discussed - particularly the learned helplessness model and Beck's cognitive-behavioural model.

 The aims of the study were: to explore the kinds of attributions made about bullying by a non-clinical population; to explore the different types of attributions made by children within a framework of later attribution theories; to explore the relationship between type of attribution and type of solution offered; and to explore the themes linking different types of attributions in children's stories.

 Design, measures and participants

 The study employed a mainly qualitative design but with some quantitative analysis using content analysis. Themes were explored using Interpretative Phenomenological Analysis.

 Seventeen 9 and 10 year olds were interviewed at school using a semistructured questionnaire which asked questions about stories which children told about imagined aggressive situations.

 Results

 The results of the content analysis suggested that children made a range of attributions which could be coded into characterological and behavioural attributions. There was some suggestion from correlational data that these were related to the type of solution offered by the participants.

 Qualitative analysis explored some of the connections between the types of attributions and concluded by describing a typical framework for a 'story' about the bullying incidents.

 Implications

 Several implications are explored for both bullying and attribution research. Suggestions are given for school interventions - particularly the importance of working with the powerlessness of victims. For clinical interventions, some ideas are explored for working with children who have been bullied or bully - although future research would benefit from looking at attributions within a clinical population.
Algorithms in $A_\infty$-algebras
Creators: name: Vejdemo-Johansson, Mikael
Publisher: name: arXiv
Year: 2019
Subjects: subject: K-Theory and Homology (math.KT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 20J06 (Primary) 55P48 (Secondary)

description: Building on Kadeishvili's original theorem inducing $A_\infty$-algebra structures on the homology of dg-algebras, several directions of algorithmic research in $A_\infty$-algebras have been pursued. In this paper we will survey work done on calculating explicit $A_\infty$-algebra structures from homotopy retractions; in group cohomology; and in persistent homology.
description: 7 pages
Evolution and Fragmentation of Wide-Angle Wind Driven Molecular Outflows
Creators: name: Cunningham, Andrew
name: Frank, Adam
name: Varnière, Peggy
name: Poludnenko, Alexei
name: Mitran, Sorin
name: Hartmann, Lee
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present two dimensional cylindrically symmetric hydrodynamic simulations and synthetic emission maps of a stellar wind propagating into an infalling, rotating environment. The resulting outflow morphology, collimation and stability observed in these simulations have relevance to the study of young stellar objects, Herbig-Haro jets and molecular outflows. Our code follows hydrogen gas with molecular, atomic and ionic components tracking the associated time dependent molecular chemistry and ionization dynamics with radiative cooling appropriate for a dense molecular gas. We present tests of the code as well as new simulations which indicate the presence of instabilities in the wind-blown bubble's swept-up shell.
description: 6 pages, 5 figures
Universal Impedance Fluctuations in Wave Chaotic Systems
Creators: name: Hemmady, Sameer
name: Zheng, Xing
name: Ott, Edward
name: Antonsen, Thomas M.
name: Anlage, Steven M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We experimentally investigate theoretical predictions of universal impedance fluctuations in wave chaotic systems using a microwave analog of a quantum chaotic infinite square well potential. Our approach emphasizes the use of the radiation impedance to remove the non-universal effects of the particular coupling from the outside world to the scatterer. Specific predictions that we test include the probability distribution functions (PDFs) of the real (related to the local density of states in disordered metals) and imaginary parts of the normalized cavity impedance, the equality of the variances of these PDFs, and the dependence of the universal PDFs on a single control parameter characterizing the level of loss. We find excellent agreement between the statistical data and theoretical predictions.
description: 5 pages, 3 figures, submitted to Phys. Rev. Lett
Case report: Bovine ethylene glycol toxicosis
Creators: name: Fritz, Scott A.
name: Ensley, Steve M.
name: Njaa, Bradley L.
Publisher: name: The Bovine Practitioner
Year: 2021

description: Acute death of 1-month-old calves on pasture that were accidentally exposed to an oil/antifreeze mix were investigated. Clinical signs were not observed and necropsy findings were non-specific. Histological diagnosis of calcium oxalate nephrosis with concurrent tubulointerstitial suppurative nephritis was supported by culture. Ethylene glycol exposure was confirmed via analytical methods.
description: The Bovine Practitioner, Vol. 55 No. 2 (2021)
Inner privacy of conscious experiences and quantum information
Creators: name: Georgiev, Danko D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The human mind is constituted by inner, subjective, private, first-person conscious experiences that cannot be measured with physical devices or observed from an external, objective, public, third-person perspective. The qualitative, phenomenal nature of conscious experiences also cannot be communicated to others in the form of a message composed of classical bits of information. Because in a classical world everything physical is observable and communicable, it is a daunting task to explain how an empirically unobservable, incommunicable consciousness could have any physical substrates such as neurons composed of biochemical molecules, water, and electrolytes. The challenges encountered by classical physics are exemplified by a number of thought experiments including the inverted qualia argument, the private language argument, the beetle in the box argument and the knowledge argument. These thought experiments, however, do not imply that our consciousness is nonphysical and our introspective conscious testimonies are untrustworthy. The principles of classical physics have been superseded by modern quantum physics, which contains two fundamentally different kinds of physical objects: unobservable quantum state vectors, which define what physically exists, and quantum operators (observables), which define what can physically be observed. Identifying consciousness with the unobservable quantum information contained by quantum physical brain states allows for application of quantum information theorems to resolve possible paradoxes created by the inner privacy of conscious experiences, and explains how the observable brain is constructed by accessible bits of classical information that are bound by Holevo's theorem and extracted from the physically existing quantum brain upon measurement with physical devices.
description: 17 pages, 2 figures
Bombus humilis Illiger 1806
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus humilis

description: Bombus humilis Illiger, 1806
Conservation status
CR
Distribution
Bombus humilis has a large Palearctic distribution (Rasmont et al. 2021). In Belgium, however, the species has vanished from nearly all the localities where it was found a hundred years ago (Folschweiller 2020). The subsisting locations are largely concentrated in the south-easternmost part of the country, in the Belgian Lorraine, with a few scarce observations east of the Sambre and Meuse valley. Habitat degradation is considered as the most threatening factor for the species, but climate change is also expected to induce substantial reductions of its European range by the end of the century (Rasmont et al. 2015, Ghisbain et al. 2024).
Notes
The species is mostly associated with open flower-rich grasslands and mostly collects pollen on plants from the Fabaceae, Lamiaceae and Boraginaceae families (Rasmont 1988, Folschweiller 2020, Rasmont et al. 2021, Wood et al. 2021). We collected a single individual, a queen, foraging on tufted vetch (Vicia cracca, Fabaceae) within mesic grasslands. Folschweiller (2020) cite Bombus humilis as frequently in sympatry with B. sylvarum and B. veteranus, two strongly-threatened species at the Belgian scale.
Diagnosis
Bombus humilis is amongst the most polymorphic bumblebee species of Europe (Fig. 6). The females of the species can be mostly confused with local colour forms of other bumblebee species belonging to the subgenus Thoracobombus, especially B. pascuorum and B. muscorum. In the females of B. humilis, however, the area directly in front of the central ocellus is largely smooth, with only a few punctuations, while this area is much more punctured in B. pascuorum and B. muscorum. In addition, the hairs on tergite 6 of B. humilis females are black, thick and erect, while they are ginger, thin and more parallel to the cuticle in B. pascuorum. The males of B. humilis can be differentiated from the males of all other bumblebee species on the basis of the morphology of their genitalia (drawn in Rasmont et al. 2021).
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Resolvable estuaries for satellite derived water quality within the continental United States
Creators: name: Schaeffer, Blake A.
name: Myer, Mark H.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: There are a wide range of satellite sensors used for water quality measures with various spatial resolutions. Here, we focus on spatial resolution because some estuaries are smaller than the satellite nadir pixel width, and multiple pixels within an estuary are required for quality assurance . We used the United States Environmental Protection Agency’s (US EPA) Estuarine Data Mapper polygon set to determine the spatial resolution required to reliably image every estuary and sub-estuary in the continental US. Kilometre resolution ocean colour sensors resolve 25% of estuaries and 36% of sub-estuaries with a 3 × 3-pixel grid. The 300 m Ocean and Land Colour Instrument (OLCI) on Sentinel-3 resolves 53% of continental US estuaries with a 3 × 3-pixel grid, and 85% of sub-estuaries. Currently orbiting 30 m resolution land imaging satellites are sufficient to resolve all US sub-estuaries and all estuaries in the Atlantic, 89% in the Gulf of Mexico, and 54% in the Pacific with a 3 × 3-pixel grid. However, 45% of Pacific estuaries cannot be resolved at 30 m resolution, because they have narrow riverine morphology. Our results indicate that a resolution of ≤15 m will be necessary to resolve these narrow riverine estuaries, which is only currently available with commercial satellites.
Spreading and fragmentation of particle-laden liquid sheets
Creators: name: Raux, Pascal S.
name: Troger, Anthony
name: Jop, Pierre
name: Sauret, Alban
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The fragmentation of liquid sheets produces a collection of droplets. The size distribution of the droplets has a considerable impact on the coating efficiency of sprays and the transport of contaminants. Although many processes commonly used particulate suspensions, the influence of the particles on the spreading dynamics of the sheet and its subsequent fragmentation has so far been considered negligible. In this paper, we consider experimentally a transient suspension sheet that expands radially. We characterize the influence of the particles on the dynamics of the liquid sheet and the fragmentation process. We highlight that the presence of particles modifies the thickness and reduces the stability of the liquid sheet. Our study suggests that particles can significantly modify the dynamics of liquid films through capillary effects, even for volume fractions much smaller than the maximum packing.
On the integrability conditions for some structures related to evolution differential equations
Creators: name: Kersten, Paul
name: Krasil'shchik, Iosif
name: Verbovetsky, Alexander
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Using the result by D.Gessler (Differential Geom. Appl. 7 (1997) 303-324, DIPS-9/98, http://diffiety.ac.ru/preprint/98/09_98abs.htm), we show that any invariant variational bivector (resp., variational 2-form) on an evolution equation with nondegenerate right-hand side is Hamiltonian (resp., symplectic).
description: 5 pages, AMS-LaTeX. v2: minor corrections
Nonequivalent Seiberg-Witten maps for noncommutative massive U(N) gauge theory
Creators: name: Amorim, Ricardo
name: Braga, Nelson R. F.
name: Ferreira, Cristine N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Massive vector fields can be described in a gauge invariant way with the introduction of compensating fields. In the unitary gauge one recovers the original formulation. Although this gauging mechanism can be extended to noncommutative spaces in a straightforward way, non trivial aspects show up when we consider the Seiberg-Witten map. As we show here, only a particular class of its solutions leads to an action that admits the unitary gauge fixing.
description: General solutions for the map and important reference included, 6 pages, no figures
title: Children's Stories of Parental Relationship Breakdown and of their Relationship with their Non-resident Parent
Creators: name: Chapman, Susie V.
Publisher: name: The Open University
Year: 1999

description: Britain has seen dramatic social changes to family life due to the growth of divorce and separation, producing burgeoning divorce literature. Surprisingly, relatively few studies have taken into account children’s views of their experiences. The present study investigated children’s stories of ‘parental relationship breakdown’ (PRB) and of their relationships with their non-resident parent. Twenty-seven children and their resident parent, were interviewed. Detailed qualitative analysis was conducted on the interviews of 18 children. The parent interview was structured to obtain background details of PRB, after which the parent completed a standardised measure of their child’s behaviour. The child interview was child-led. After the interview the children completed a standardised self-esteem measure. Narrative analysis provided a precis of the children’s stories in order to examine the main events they incorporated, and grounded theory was used to analyse the detail of the child’s experience. The majority of the children old enough to recall pre-PRB family life seemed to have an assumption about its permanency, the separation of the parents promoting doubts about their continued loveability and sense of being held in mind by the non-resident parent. Although children employed various strategies hypothesised as addressing these doubts, parents’ handling of the situation also appeared to play a major part in how the children made sense of their experiences and contained their anxieties. Tentative recommendations are that personal meanings of PRB for children (particularly regarding their perceived relationships with their parents) needs to be understood by both parents and clinicians in order to help children better contain feelings arising from the PRB. Families could benefit from more access to advice, support and information about the impending separation and events thereafter.
Soft SUSY breaking and family symmetry
Creators: name: Ramage, M. R.
name: Ross, G. G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A spontaneously broken non-Abelian SU(3) family symmetry can generate a realistic form for quark, charged lepton and neutrino masses and mixing angles. It also gives a new solution to the SUSY flavour problem by ensuring near family degeneracy of the soft mass SUSY breaking terms. However the need to generate large third generation fermion masses means that the group must be strongly broken to SU(2) giving significant corrections to the third family squark and slepton masses. We investigate the phenomenological implications of such breaking and show that it leads to new solutions capable of fitting all present experimental measurements and bounds as well as the dark matter abundance.
description: LaTeX, 16 pages, 4 figures. Updated refs. Uses JHEP3.cls
Lasioglossum leucozonium
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Lasioglossum
Lasioglossum leucozonium

description: Lasioglossum leucozonium (Schrank, 1781)
Conservation status
LC
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Perceptions of gender bias among members of the American Association of Bovine Practitioners in bovine practice in the United States in 2018
Creators: name: Gilliam, Gabryelle
name: Fajt, Virginia
name: Wagner, Sarah
name: White, Brad
name: Apley, Michael
Publisher: name: The Bovine Practitioner
Year: 2021

description: The objective of this study was to gather perceptions of gender bias and the factors that influence gender bias in bovine veterinary practice. A web-based survey regarding perceptions related to gender bias encountered in clinical practice settings was made available electronically to the members of the American Association of Bovine Practitio-ners. There were 207 survey respondents (99 women and 108 men), and the population was closely split between those graduating in 2000 or before (48.8%) and those graduating in 2001 or after (51.2%). Survey responses about those experiencing client or employer-generated gender bias in their current practice, and in the first year of practice, were categorized to binary (yes/no) from ordinal responses (0-10 scales). Logistic models were utilized to analyze potential associations between perceptions of client or employer-generated gender bias with relevant respondent factors including gender, year of graduation (categorized as <1990, 1990-2000, 2001-2010, 2011-2017), pre-college community size (categorized as <1,000-5,000, 5,001-50,000, >50,000), post-college community size (cat-egorized as <1,000-5,000, 5,001-50,000, >50,000), food animal background (yes/no), practice activities (categorized as Exclusively Beef/Dairy; Mixed Practice, mostly beef/dairy, Mixed Practice, no beef/dairy), and if the respondent was the first of their gender in the practice (yes/no). Women graduating before 1990 were less likely to observe current client gender bias than those graduating in 2011-2017. Men were more similar throughout with those graduating before 1990 seeing slightly less current client gender bias than those graduating in 2011-2017. Graduation year was associated with increased risk of client gender bias over time, with those graduating before 1990 experiencing less client gender bias in the first year of practice than those graduating in 2011-2017. Women observed more client gender bias in the first year of practice compared to men. There were no significant associations with employer gender bias in their current practice, but employer gender bias in the first year of practice was found to be significantly associated with respondent gender. Men were roughly half as likely to observe employer gender bias in the first year of practice compared to women. Gender and graduation year were significantly associated with client and employer gender bias encountered in the current practice and in the first year of practice. The results support the conclusion that gender bias is encountered by our veterinary colleagues, with more bias perceived by more recently graduated women.
description: The Bovine Practitioner, Vol. 55 No. 2 (2021)
Manifolds with small Dirac eigenvalues are nilmanifolds
Creators: name: Ammann, Bernd
name: Sprouse, Chad
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 53C27 (Primary), 58J50, 53C20, 53C21. (Secondary)

description: Consider the class of n-dimensional Riemannian spin manifolds with bounded sectional curvatures and diameter, and almost non-negative scalar curvature. Let r=1 if n=2,3 and r=2^{[n/2]-1}+1 if n\geq 4. We show that if the square of the Dirac operator on such a manifold has $r$ small eigenvalues, then the manifold is diffeomorphic to a nilmanifold and has trivial spin structure. Equivalently, if M is not a nilmanifold or if M is a nilmanifold with a non-trivial spin structure, then there exists a uniform lower bound on the r-th eigenvalue of the square of the Dirac operator. If a manifold with almost nonnegative scalar curvature has one small Dirac eigenvalue, and if the volume is not too small, then we show that the metric is close to a Ricci-flat metric on M with a parallel spinor. In dimension 4 this implies that M is either a torus or a K3-surface.
Correlations between pressure and bandwidth effects in metal-insulator transitions in manganites
Creators: name: Cui, Congwu
name: Tyson, Trevor A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The effect of pressure on the metal-insulator transition in manganites with a broad range of bandwidths is investigated. A critical pressure is found at which the metal-insulator transition temperature, T$_{MI}$, reaches a maximum value in every sample studied. The origin of this universal pressure and the relation between the pressure effect and the bandwidth on the metal-insulator transition are discussed.
Lorentz and CPT Tests using Penning Traps
Creators: name: Ding, Yunhua
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The theoretical prospects for quantum electrodynamics with Lorentz-violating operators of mass dimensions up to six are revisited in this work. The dominant effects due to Lorentz and CPT violation are studied in measurements of magnetic moments of particles confined in Penning traps. Using recently reported experimental results, new coefficients for Lorentz violation are constrained and existing bounds of various coefficients are improved.
description: 10 pages, accepted for publication in the Special Issue of Symmetry: Symmetry in Special and General Relativity
Enhanced dynamics in fusion of neutron-rich oxygen nuclei at above-barrier energies
Creators: name: Hudan, S.
name: deSouza, R. T.
name: Umar, A. S.
name: Lin, Z.
name: Horowitz, C. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Above-barrier fusion cross-sections for an isotopic chain of oxygen isotopes with A=16-19 incident on a $^{12}$C target are presented. Experimental data are compared with both static and dynamical microscopic calculations. These calculations are unable to explain the $\sim$37\% increase in the average above-barrier fusion cross-section observed for $^{19}$O as compared to $β$-stable oxygen isotopes. This result suggests that for neutron-rich nuclei existing time-dependent Hartree-Fock calculations underpredict the role of dynamics at near-barrier energies. High-quality measurement of above-barrier fusion for an isotopic chain of increasingly neutron-rich nuclei provides an effective means to probe this fusion dynamics.
description: 6 pages, 4 figures
Colloidal interactions and unusual crystallization versus de-mixing of elastic multipoles formed by gold mesoflowers
Creators: name: Yuan, Ye
name: Tasinkevych, Mykola
name: Smalyukh, Ivan I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Colloidal interactions in nematic liquid crystals can be described as interactions between elastic multipoles that depend on particle shape, topology, chirality, boundary conditions and induced topological defects. Here, we describe a nematic colloidal system consisting of mesostructures of gold capable of inducing elastic multipoles of different order. Elastic monopoles are formed by relatively large asymmetric mesoflower particles, for which gravity and elastic torque balancing yields monopole-type interactions. High-order multipoles are instead formed by smaller mesoflowers with a myriad of shapes corresponding to multipoles of different orders, consistent with our computer simulations based on free energy minimization. We reveal unexpected many-body interactions in this colloidal system, ranging from de-mixing of elastic monopoles to a zoo of unusual colloidal crystals formed by high-order multipoles like hexadecapoles. Our findings show that gold mesoflowers may serve as a designer toolkit for engineering colloidal interaction and self-assembly, potentially exceeding that in atomic and molecular systems.
Galois currents and the projective kernel in Rational Conformal Field Theory
Creators: name: Bantay, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The notion of Galois currents in Rational Conformal Field Theory is introduced and illustrated on simple examples. This leads to a natural partition of all theories into two classes, depending on the existence of a non-trivial Galois current. As an application, the projective kernel of a RCFT, i.e. the set of all modular transformations represented by scalar multiples of the identity, is described in terms of a small set of easily computable invariants.
Supermassive black holes from primordial black hole seeds
Creators: name: Duechting, Norbert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The observational evidence for a population of quasars powered by supermassive black holes of mass \geq 10^9 M_sun at redshifts z\geq 6 poses a great challenge for any model describing the formation of galaxies. Assuming uninterrupted accretion at the Eddington limit, seed black holes of at least 1000 M_sun are needed at z \approx 15. Here I study whether these seeds could be primordial black holes (PBHs) which have been produced in the very early universe by the collapse of primordial density fluctuations. In particular, I study the expected number densities of PBHs in the relevant mass range for several classes of spectra of primordial density fluctuations and confront the results with observational data. While it seems to be possible to produce the required PBHs with spectra showing large enhancements of fluctuations on a certain scale, our hypothesis can be clearly disproved for a scale free spectrum of primordial fluctuations described by a power-law slope consistent with recent observations.
description: 9 pages, 3 figures, minor changes, references added, accepted for publication in the September 2004 issue of Phys. Rev. D
Dynamical evolution of unstable self-gravitating scalar solitons
Creators: name: Alcubierre, Miguel
name: Gonzalez, Jose A.
name: Salgado, Marcelo
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, static and spherically symmetric configurations of globally regular self-gravitating scalar solitons were found. These configurations are unstable with respect to radial linear perturbations. In this paper we study the dynamical evolution of such configurations and show that, depending on the sign of the initial perturbation, the solitons either collapse to a Schwarzschild black hole or else ``explode'' into an outward moving domain wall.
description: 11 pages, 16 figures, submitted to Phys. Rev. D
Thematic analysis of comments from a survey on perceptions of gender bias among members of the American Association of Bovine Practitioners in bovine practice in the United States
Creators: name: Fajt, Virginia
name: Wagner, Sarah
name: Apley, Michael
Publisher: name: The Bovine Practitioner
Year: 2021

description: The gender composition of food animal practice differs from other veterinary practice types, and women are relatively underrepresented in food animal practice. The reasons are unknown, and a possible factor is gender bias. There are no reports specific to bovine practice concerning the extent or perception of gender bias. American Association of Bovine Practitioners members in the US were invited to participate in an anonymous online survey regarding gender bias in bovine practice, and thematic analysis was performed on the free text comments. There were 207 responses (99 women and 108 men), which included over 1000 comment extracts that were coded in the thematic analysis. The most common themes associated with gender differences in survey comments were practices not wanting to hire women because of lack of strength or stamina, clients asking for the male veterinarian, and pregnancy- or children-related issues. The results of this thematic analysis support the assertion that gender bias exists in bovine practice in the US.
description: The Bovine Practitioner, Vol. 55 No. 2 (2021)
Nomada flavoguttata
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Nomada
Nomada flavoguttata

description: Nomada flavoguttata (Kirby, 1802)
Conservation status
LC
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Modular Shimura varieties and forgetful maps
Creators: name: Rotger, Victor
Publisher: name: arXiv
Year: 2003
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G18; 14G35

description: We consider several maps that occur naturally between modular Shimura varieties, Hilbert-Blumenthal varieties and the moduli spaces of polarized abelian varieties when forgetting certain endomorphism structures. We prove that, up to birational equivalences, these forgetful maps coincide with the natural projection by suitable abelian groups of Atkin-Lehner involutions.
description: Minor modifications made
The XMM-Newton Iron Line Profile of NGC 3783
Creators: name: Reeves, J. N
name: Nandra, K.
name: George, I. M.
name: Pounds, K. A.
name: Turner, T. J.
name: Yaqoob, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on observations of the iron K line in the nearby Seyfert 1 galaxy, NGC 3783, obtained in a long, 2 orbit (240 ks) XMM-Newton observation. The line profile obtained exhibits two strong narrow peaks at 6.4 keV and at 7.0 keV, with measured line equivalent widths of 120 and 35 eV respectively. The 6.4 keV emission is the K-alpha line from near neutral Fe, whilst the 7.0 keV feature probably originates from a blend of the neutral Fe K-beta line and the H-like line of Fe at 6.97 keV. The relatively narrow velocity width of the K-alpha line (<5000 km/s), its lack of response to the continuum emission on short timescales and the detection of a neutral Compton reflection component are all consistent with a distant origin in Compton-thick matter such as the putative molecular torus. A strong absorption line from highly ionized iron (at 6.67 keV) is detected in the time-averaged iron line profile, whilst the depth of the feature appears to vary with time, being strongest when the continuum flux is higher. The iron absorption line probably arises from the highest ionization component of the known warm absorber in NGC 3783, with an ionization of logxi=3 and column density of 5x10^{22}cm{-2} and may originate from within 0.1pc of the nucleus. A weak red-wing to the iron K line profile is also detected below 6.4 keV. However when the effect of the highly ionized warm absorber on the underlying continuum is taken into account, the requirement for a relativistic iron line component from the inner disk is reduced.
description: 34 pages, including 11 figures. Accepted for publication in ApJ
Comment on "Dirac fermions in Som-Raychaudhuri space-time with scalar and vector potential and the energy momentum distributions"
Creators: name: Neto, Francisco A. Cruz
name: Vicente, Andrés G. Jirón
name: Castro, Luis B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We point out a misleading treatment and incorrect expressions in a recent paper published in this Journal [Eur. Phys. J. C (2019) 79: 541] regarding solutions for the Dirac equation in presence of scalar and vector potentials in a class of flat Gödel-type space-time called Som-Raychaudhuri space-time. Following the appropriate procedure we obtain the solution for this system.
description: 3 pages
Colletes daviesanus Smith 1846
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Colletidae
Colletes
Colletes daviesanus

description: Colletes daviesanus Smith, 1846
Conservation status
LC
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
A comparison of aquatic macroinvertebrate and large branchiopod community composition between temporary pans of a conservation area and surrounding communal area in South Africa
Creators: name: T Dube
name: L De Necker
name: V Wepener
name: NJ Smit
name: T Pinceel
name: GN Mwaijengo
name: P Lemmens
name: L Brendonck
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Although temporary wetlands are often biodiversity hotspots that deliver multiple ecosystem services, they are also threatened by human exploitation. We conducted a comparative field study to investigate the impact of reserve protection on the diversity and community structure of aquatic macroinvertebrates of temporary wetlands (pans) in South Africa. Specifically, we compared the diversity and community composition of macroinvertebrates with a special focus on large branchiopod crustaceans in pans of a protected nature reserve (Ndumo Game Reserve) with that of pans in the surrounding anthropogenically disturbed area (Ndumo Communal Area). Our results show that reserve protection has a significant positive effect on the diversity and community structure of the aquatic macroinvertebrates. The taxon diversity for macroinvertebrates in general and large branchiopods in particular was significantly higher in the Ndumo Game Reserve, compared with the Ndumo Communal Area. Overall, our results illustrate the need for continued protection of reserve areas and pans in this tropical region in South Africa for the conservation of macroinvertebrate species.
Coherence control for qubits
Creators: name: Fonseca-Romero, Karen M.
name: Kohler, Sigmund
name: Hänggi, Peter
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the influence of an external driving field on the coherence properties of a qubit under the influence of bit-flip noise. In the presence of driving, two paradigmatic cases are considered: (i) a field that results for a suitable choice of the parameters in so-called coherent destruction of tunneling and (ii) one that commutes with the static qubit Hamiltonian. In each case, we give for high-frequency driving a lower bound for the coherence time. This reveals the conditions under which the external fields can be used for coherence stabilization.
description: 15 pages, 1 figure
Colon Shape Estimation Method for Colonoscope Tracking using Recurrent Neural Networks
Creators: name: Oda, Masahiro
name: Roth, Holger R.
name: Kitasaka, Takayuki
name: Furukawa, Kazuhiro
name: Miyahara, Ryoji
name: Hirooka, Yoshiki
name: Goto, Hidemi
name: Navab, Nassir
name: Mori, Kensaku
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose an estimation method using a recurrent neural network (RNN) of the colon's shape where deformation was occurred by a colonoscope insertion. Colonoscope tracking or a navigation system that navigates physician to polyp positions is needed to reduce such complications as colon perforation. Previous tracking methods caused large tracking errors at the transverse and sigmoid colons because these areas largely deform during colonoscope insertion. Colon deformation should be taken into account in tracking processes. We propose a colon deformation estimation method using RNN and obtain the colonoscope shape from electromagnetic sensors during its insertion into the colon. This method obtains positional, directional, and an insertion length from the colonoscope shape. From its shape, we also calculate the relative features that represent the positional and directional relationships between two points on a colonoscope. Long short-term memory is used to estimate the current colon shape from the past transition of the features of the colonoscope shape. We performed colon shape estimation in a phantom study and correctly estimated the colon shapes during colonoscope insertion with 12.39 (mm) estimation error.
description: Accepted paper as a poster presentation at MICCAI 2018 (International Conference on Medical Image Computing and Computer-Assisted Intervention), Granada, Spain
Red variables in the OGLE-II database. II. Comparison of the Large and Small Magellanic Clouds
Creators: name: Kiss, L. L.
name: Bedding, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present period-luminosity relations for more than 3,200 red variable stars in the Small Magellanic Cloud observed in the second phase of the Optical Gravitational Lensing Experiment (OGLE-II). Periods of multiply-periodic light curve solutions combined with the single-epoch 2MASS JHK_S magnitudes, reveal very similar distributions to those for the Large Magellanic Cloud in Paper I. The main features include four pulsating Asymptotic Giant Branch (AGB) ridges, three distinct short-period sequences below the tip of the Red Giant Branch and two long-period sequences of ambiguous origin. We derive a relative distance modulus of the Clouds from the period-luminosity distributions for all stars of Delta mu_0=0.44 mag, which is in good agreement with recent independent results. The tip of the Red Giant Branch shows a colour and metallicity dependence that is in excellent agreement with the empirical results for globular clusters. We conclude that most variable stars below the TRGB are indeed RGB stars.
description: 6 pages, 4 figures, accepted for publication in MNRAS (Pink Pages)
The Enterprise’s Financial Condition Assessment as a Component of its Creditworthiness
Creators: name: Wasilewska, Natalia
name: Wasilewski, Mirosław
name: Zabolotnyy, Serhiy
name: Wasilewska, Natalia
name: Wasilewski, Mirosław
name: Zabolotnyy, Serhiy
Publisher: name: Unknown
Year: 2018
Subjects: subject: Financial Economics
subject: Industrial Organization
subject: Risk and Uncertainty
subject: financial condition assessment
subject: lending to enterprises
subject: credit history
subject: liquidity
subject: debt
subject: business activity
subject: profitability

description: The article covers aspects of financial condition analysis regarding creditworthiness of Ukrainian agricultural enterprises that had to operate in unstable economic conditions in 2009-2017. It is proposed to improve methodological approaches to financial assessment of an enterprise – a potential borrower, due to changes in the economy, in particular in the financial sector, which have been influenced by crises that have shaken the Ukrainian economy twice in the past ten years. The proposed approaches to assessing the financial condition of an agricultural enterprise as a component of its creditworthiness increase the accuracy and credibility of such assessments and help to minimize credit risks.
description: DOI: 10.22630/PRS.2018.18.4.137
Bisaltes (Bisaltes) pulvereus
Creators: name: Santos-Silva, Antonio
name: Wappes, James E.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Bisaltes
Bisaltes pulvereus

description: Bisaltes (Bisaltes) pulvereus (Bates, 1866)
(Fig. 21–22)
 Esthlogena pulverea Bates 1866: 289; Lacordaire 1872: 600; Gemminger 1873: 3101 (cat.); Aurivillius 1922: 293 (cat.); Blackwelder 1946: 598 (checklist).
 Bisaltes pulverea; Breuning, 1949: 19 (syn.); Barbosa et al. 2009: 294 (distr.).
 Bisaltes (Bisaltes) pulvereus; Breuning 1960: 178 (cat.); 1971: 281; Monné and Giesbert 1994: 187 (checklist); Monné 1994a: 22 (cat.); 2005: 295 (cat.); Morvan and Morati 2006: 41 (distr.); Touroult et al. 2010: 31; Giuglaris 2012: 64 (distr.); Morvan and Roguet 2013: 21 (distr.); Monné 2020: 438 (cat.).
 Bisaltes posticalis Thomson 1868: 11; Lacordaire 1872: 606; Gemminger 1873: 3102 (cat.); Thomson 1878: 11 (type); Aurivillius 1922: 295 (cat.); Blackwelder 1946: 598 (checklist).
 Breuning (1949) transferred Esthlogena pulverea (Fig. 22) to Bisaltes, and synonymized B. posticalis (Fig. 21) with it. Comparing photographs of the holotypes of both species, we agree with Breuning (1949).
Currently, the species is known from French Guiana and Brazil (Amazonas, Pará, Rondônia) (Monné 2020). As the holotypes have never been figured, we take the opportunity to illustrate them here.
 Material examined. FRENCH GUIANA: Roura, 1 male, 24.VII.1981, G. Tavakilian col. (MZSP).
description: Published as part of Santos-Silva, Antonio & Wappes, James E., 2021, On the transference of Ataxia tibialis Schaeffer to Bisaltes (Bisaltes) Thomson with synonymies and new records in the genus (Coleoptera: Cerambycidae), pp. 1-10 in Insecta Mundi 2021 (844) on page 8, DOI: 10.5281/zenodo.5041302