cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlations and Pairing Between Zeros and Critical Points of Gaussian Random Polynomials
Creators: name: Hanin, Boris
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the asymptotics of correlations and nearest neighbor spacings between zeros and holomorphic critical points of $p_N$, a degree N Hermitian Gaussian random polynomial in the sense of Shiffman and Zeldtich, as N goes to infinity. By holomorphic critical point we mean a solution to the equation $\frac{d}{dz}p_N(z)=0.$ Our principal result is an explicit asymptotic formula for the local scaling limit of $\E{Z_{p_N}\wedge C_{p_N}},$ the expected joint intensity of zeros and critical points, around any point on the Riemann sphere. Here $Z_{p_N}$ and $C_{p_N}$ are the currents of integration (i.e. counting measures) over the zeros and critical points of $p_N$, respectively. We prove that correlations between zeros and critical points are short range, decaying like $e^{-N\abs{z-w}^2}.$ With $\abs{z-w}$ on the order of $N^{-1/2},$ however, $\E{Z_{p_N}\wedge C_{p_N}}(z,w)$ is sharply peaked near $z=w,$ causing zeros and critical points to appear in rigid pairs. We compute tight bounds on the expected distance and angular dependence between a critical point and its paired zero.
description: 35 pages, 3 figures. Some typos corrected and Introduction revised
J. S. Hohmann, G. Wieland (Hg.), Konzentrationslager Sachsenhausen bei Oranienburg 1939 bis 1944. Die Aufzeichnungen des KZ-Häftlings Rudolf Wunderlich, 1997
Creators: name: Fabréguet, Michel
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 28 Nr. 3 (2001)
Thagria intorta NIELSON 2013, sp. nov.
Creators: name: NIELSON, M. W.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Thagria
Thagria intorta

description: Thagria intorta, sp. nov. (Plate 1I, Figs. 57–64) Length. Male 7.00 mm; female unknown. External morphology. Medium size, slender species. General color dark brown to black with ivory to yellowish markings on pronotum, mesonotum and forewings (Plate 1I); face ivory with black markings on lateral margins of clypeus and clypellus, contiguous from basal half of clypeus to apex of clypellus, lora and gena suffused with dark markings. Head narrower than pronotum, anterior margin broadly rounded; crown broad, about as wide as eye width, produced slightly distally beyond anterior margin of eyes, lateral margins slightly convergent basally, disk about even with level of eyes; eyes large, semiglobular; pronotum slightly longer than median length of crown, surface bullated; mesonotum large, about 1 ½ times longer than pronotum; forewings typical; clypeus long, broad at basal half, lateral margins constricted near middle, tapered to narrow, truncate apex; clypellus short, narrow, base flat. Male genitalia. Pygofer in lateral view with caudoventral margin produced to short, broad lobe, caudodorsal margin with 1 pair of short, digitate lobes (Fig. 57), in dorsal view digitate lobes curved (Fig. 58); segment X ventral processes absent; aedeagus symmetrical, long, about ¾ as long as ventral paraphysis (Figs. 59, 60); ventral paraphysis asymmetrical, in dorsal view lateral margins slightly sinuate, apex curved laterally with retrorse apical spine and 2 sharp, lateral subapical spines unequal in length, distal spine smaller (Figs. 59, 60); style moderately long, reaching to near midlength of ventral paraphysis, broad in basal ¾, attenuated apically (Figs. 61, 62); connective typical; dorsal connective in dorsobasal view narrowly U-shaped, stem absent, attached distally to membranous base of segment X ventral process (Fig. 63); subgenital plate typical, long fine setae scattered on lateral margin, tuft of long setae apically (Fig. 64). Material examined. Holotype male. LAOS: Phongsaly prov., Ban Sano Mai, 19–26 V. 2004,1150 m., 21°21’N – 102° 03’E; P. Pachlatcho, leg., Collection Moraviske Museum, Brno. (BRNO) Etymology. The name is descriptive for the apex of the ventral paraphysis. Remarks. This species is similar to quadrata Freytag in characters of the ventral paraphysis and can be separated by configuration of apical spines, fewer in number (3 vs. 4), by absence of segment X ventral processes and by numerous markings on the pronotum, mesonotum and forewings (absent in forewings of quadrata).
description: Published as part of NIELSON, M. W., 2013,  New records of Antarctic and Sub-Antarctic sea anemones (Cnidaria, Anthozoa, Actiniaria and Corallimorpharia) from the Weddell Sea, Antarctic Peninsula, and Scotia Arc , pp. 1-105 in Zootaxa 3625 (1) on pages 54-57, DOI: 10.11646/zootaxa.3625.1.1, http://zenodo.org/record/5261016
Low-Latency Data Sharing in Erasure Multi-Way Relay Channels
Creators: name: Noori, Moslem
name: Bagheri, Hossein
name: Ardakani, Masoud
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We consider an erasure multi-way relay channel (EMWRC) in which several users share their data through a relay over erasure links. Assuming no feedback channel between the users and the relay, we first identify the challenges for designing a data sharing scheme over an EMWRC. Then, to overcome these challenges, we propose practical low-latency and low-complexity data sharing schemes based on fountain coding. Later, we introduce the notion of end-to-end erasure rate (EEER) and analytically derive it for the proposed schemes. EEER is then used to calculate the achievable rate and transmission overhead of the proposed schemes. Using EEER and computer simulations, the achievable rates and transmission overhead of our proposed schemes are compared with the ones of one-way relaying. This comparison implies that when the number of users and the channel erasure rates are not large, our proposed schemes outperform one-way relaying. We also find an upper bound on the achievable rates of EMWRC and observe that depending on the number of users and channel erasure rates, our proposed solutions can perform very close to this bound.
description: The paper has been accepted for publication in IEEE Transactions on Communications
Entweder – oder? Mutterschaft zwischen Fundamentalismen und vielschichtigen Praxen
Creators: name: Thiessen, Barbara
name: Villa, Paula Irene
Publisher: name: querelles-net
Year: 2010
Subjects: Familie; Kinder; Mutterschaft; Care; Gleichstellung; Geschlecht; Gender

description: Mutterschaft wird in Deutschland ‚fundamentalistisch‘ diskursiviert: Die Leitbilder der ‚guten‘ Mutter sowie deren negative Schattenseiten sind moralisch und politisch überfrachtet, so dass scheinbar nicht nur das Wohl und Wehe der Kinder, sondern auch das der ganzen Nation an der Erfüllung spezifischer Normen von Mutterschaft zu hängen scheinen. In der alltäglichen Praxis von Mutterschaft brechen sich diese phantasmatischen Bilder allerdings – der Familien- und Mutteralltag ist vielmehr geprägt von vielfältigsten, durchaus eigensinnigen und nach Ungleichheitslagen differenzierten Arrangements sowie entsprechender ‚Identitäten‘ von Müttern. In unserem Beitrag skizzieren wir diese Gemengelage zunächst als Effekt von Reflexivierungsprozessen, die nicht zuletzt der Zweiten Frauenbewegung, aber auch den unterschiedlichen Traditionen in der DDR und der BRD geschuldet sind. Auch die derzeitige ‚Ökonomisierung des Sozialen‘ bildet eine wesentliche Rahmenbedingung für gegenwärtige Diskurse rund um Mutterschaft. Im Beitrag werden auch Aspekte der familien- und sozialpolitischen Regulierung von Mutterschaft skizziert. Insgesamt diagnostizieren wir einerseits die Pluralisierung von Mutterschaftsbildern, die andererseits aber hochgradig widersprüchlich ist. Mütter nehmen diese Konflikte – etwa zwischen der ‚guten Mutter‘, die ganz in der langjährigen Vollverfügbarkeit für die Kinder aufgeht, und der ‚guten Mutter‘, die durch die Brille ihrer eigenen Karriere ihre Kinder als Humankapital betrachtet, in das sie investiert – individualisiert wahr, was wir entlang einiger exemplarischer ‚Druckstellen‘ darstellen. Der Beitrag schließt mit einem Plädoyer für die gesellschaftliche Aufwertung fürsorgebasierter Beziehungen und damit mit einer Kritik an der Fetischisierung von Autonomie.
description: querelles-net, Jg. 11, Nr. 2 (2010): Familie
Relations between stressful life events and preschoolers’ social-emotional and cognitive skills
Creators: name: Purpura, David J.
name: Clark, Elizabeth
name: Closser, Avery Harrison
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Developmental Psychology
subject: Education
subject: Child Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Childhood stressful life events are associated with decreased well-being in adulthood. However, the relations between stressful life events and outcomes in preschoolers remains less clear. This study investigates the relations between preschoolers’ stressful life events and their outcomes on social-emotional and cognitive skills (mathematics, literacy, executive functioning, and school readiness).
Neuronal functional connectivity among multiple areas of the rat somatosensory system during spontaneous and evoked activities
Creators: name: Zippo, Antonio G.
name: Storchi, Riccardo
name: Gelsomino, Giuliana
name: Nencini, Sara
name: Caramenti, Gian Carlo
name: Valente, Maurizio
name: Biella, Gabriele E. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Small-World Networks (SWNs) represent a fundamental model for the comprehension of many complex man-made and biological networks. In the central nervous system, SWN models have been shown to fit well both anatomical and functional maps at the macroscopic level. However the functional microscopic level, where the nodes of a network are composed of single neurons, is still poorly understood. At this level, although recent evidences suggest that functional connectivity maps exhibit small-world organization, it is not known whether and how these maps, distributed in multiple brain regions, change across different conditions. We addressed these questions by simultaneous multi-array extracellular recordings in three brain regions diversely involved in somatosensory information processing: the ventropostero-lateral thalamic nuclei (VPL), the primary somatosensory cortex (S1) and the centro-median thalamic nuclei (CM). From both spike and Local Field Potential (LFP) recordings, we estimated the functional connectivity maps by using the Normalized Compression Similarity (spikes) and the Phase Synchrony (LFPs). Then, by using graph-theoretical statistics, we characterized the functional map topology both during spontaneous activity and sensory stimulation. Our main results show that: (i) spikes and LFPs show SWN organization during spontaneous activity; (ii) After stimulation onset, while substantial functional map reconfigurations occur both in spike and LFPs, small-worldness is nonetheless preserved (iii) The stimulus triggers a significant increase of inter-area LFP connections without modifying the topology of intra-area functional connections; (iv) Through computer simulations of the fundamental concept of cell assemblies, transient groups of activating neurons can be described by small-world networks.
Impact of play restriction during the COVID-19 pandemic on mental well-being in children with a chronic condition.
Creators: name: Hoefnagels, Johanna Wilhelmina
name: Koevoets, Emmie Willemijn
name: Nijhof, Sanne
name: Veltkamp, Remco
name: Lesscher, Heidi
name: Van De Putte, Elise
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Psychiatry and Psychology
subject: Diseases
subject: Psychiatric and Mental Health
subject: Medicine and Health Sciences
subject: Leisure Studies
subject: Child Psychology
subject: Mental and Social Health
subject: Behavior and Behavior Mechanisms
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This project describes the impact of (social) restrictions during the COVID-19 pandemic on mental well-being in children with a chronic condition.
Interstellar MHD Turbulence and Star Formation
Creators: name: Vazquez-Semadeni, Enrique
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This chapter reviews the nature of turbulence in the Galactic interstellar medium (ISM) and its connections to the star formation (SF) process. The ISM is turbulent, magnetized, self-gravitating, and is subject to heating and cooling processes that control its thermodynamic behavior. The turbulence in the warm and hot ionized components of the ISM appears to be trans- or subsonic, and thus to behave nearly incompressibly. However, the neutral warm and cold components are highly compressible, as a consequence of both thermal instability in the atomic gas and of moderately-to-strongly supersonic motions in the roughly isothermal cold atomic and molecular components. Within this context, we discuss: i) the production and statistical distribution of turbulent density fluctuations in both isothermal and polytropic media; ii) the nature of the clumps produced by thermal instability, noting that, contrary to classical ideas, they in general accrete mass from their environment; iii) the density-magnetic field correlation (or lack thereof) in turbulent density fluctuations, as a consequence of the superposition of the different wave modes in the turbulent flow; iv) the evolution of the mass-to-magnetic flux ratio (MFR) in density fluctuations as they are built up by dynamic compressions; v) the formation of cold, dense clouds aided by thermal instability; vi) the expectation that star-forming molecular clouds are likely to be undergoing global gravitational contraction, rather than being near equilibrium, and vii) the regulation of the star formation rate (SFR) in such gravitationally contracting clouds by stellar feedback which, rather than keeping the clouds from collapsing, evaporates and diperses them while they collapse.
description: 43 pages. Invited chapter for the book "Magnetic Fields in Diffuse Media", edited by Elisabete de Gouveia dal Pino and Alex Lazarian. Revised as per referee's recommendations
Gamma-Ray Active Galactic Nucleus Type through Machine-Learning Algorithms
Creators: name: Hassan, T.
name: Mirabal, N.
name: Contreras, J. L.
name: Oya, I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Fermi Gamma-ray Space Telescope is producing the most detailed inventory of the gamma-ray sky to date. Despite tremendous achievements approximately 25% of all Fermi extragalactic sources in the Second Fermi LAT Catalogue (2FGL) are listed as active galactic nuclei (AGN) of uncertain type. Typically, these are suspected blazar candidates without a conclusive optical spectrum or lacking spectroscopic observations. Here, we explore the use of machine-learning algorithms - Random Forests and Support Vector Machines - to predict specific AGN subclass based on observed gamma-ray spectral properties. After training and testing on identified/associated AGN from the 2FGL we find that 235 out of 269 AGN of uncertain type have properties compatible with gamma-ray BL Lacs and flat-spectrum radio quasars with accuracy rates of 85%. Additionally, direct comparison of our results with class predictions made after following the infrared colour-colour space of Massaro et al. (2012) show that the agreement rate is over four-fifths for 54 overlapping sources, providing independent cross validation. These results can help tailor follow-up spectroscopic programs and inform future pointed surveys with ground-based Cherenkov telescopes.
description: 7 pages, 3 figures, 3 tables, accepted for publication in MNRAS. Complete tables can be retrieved at http://cta.gae.ucm.es/gae/?q=node/132
There is no triangulation of the torus with vertex degrees 5, 6, ..., 6, 7 and related results: Geometric proofs for combinatorial theorems
Creators: name: Izmestiev, Ivan
name: Kusner, Robert B.
name: Rote, Günter
name: Springborn, Boris
name: Sullivan, John M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 05C10, 30F10, 57M50

description: There is no 5,7-triangulation of the torus, that is, no triangulation with exactly two exceptional vertices, of degree 5 and 7. Similarly, there is no 3,5-quadrangulation. The vertices of a 2,4-hexangulation of the torus cannot be bicolored. Similar statements hold for 4,8-triangulations and 2,6-quadrangulations. We prove these results, of which the first two are known and the others seem to be new, as corollaries of a theorem on the holonomy group of a euclidean cone metric on the torus with just two cone points. We provide two proofs of this theorem: One argument is metric in nature, the other relies on the induced conformal structure and proceeds by invoking the residue theorem. Similar methods can be used to prove a theorem of Dress on infinite triangulations of the plane with exactly two irregular vertices. The non-existence results for torus decompositions provide infinite families of graphs which cannot be embedded in the torus.
description: 14 pages, 11 figures, only minor changes from first version, to appear in Geometriae Dedicata
Recognizing and Adapting to Cultural Differences: Influence of International Educational Programs on Future Nursing and Midwifery Practice
Creators: name: Johnston, Jacqueline
name: McKenna, Lisa
name: Malik, Gulzar
name: Reisenhofer, Sonia
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 4204
subject: Midwifery
classificationCode: 4206
subject: Public health
classificationCode: 4205
subject: Nursing
subject: FOS: Health sciences

description: Introduction: International educational programs build cultural humility and safety skills in nursing and midwifery students; however, long-term outcomes of these programs are unclear. The purpose of this study was to explore the impact of international educational programs on nurses’ and midwives’ future professional practice. Method: Using grounded theory informed by Charmaz, 13 general nurses, two mental health nurses, three midwives, and four dual-qualified nurse/midwives across eight different countries were interviewed. Three categories evolved from the analysis. This article reports on the category Recognizing and adapting to cultural differences. Findings: Participants developed cultural safety and awareness from participation in programs extending into future practice. Experiencing and adapting to cultural similarities and differences, they developed culturally congruent practices many years after program completion. Discussion: International programs contributed to participants’ professional practice. Positive and ongoing influences are important for employers to promote patient safety and culturally congruent quality care. Findings are also relevant for education providers to inform quality cultural learning.
Shifts in the Australian public's opinions towards alcohol policies: 2004–2019
Creators: name: Torney, Alexandra
name: Room, Robin
name: Jiang, Heng
name: Livingston, Michael
name: Callinan, Sarah
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 44
subject: Human society
classificationCode: 4206
subject: Public health

description: Introduction: After a period of stagnation, alcohol policy in Australia has received increased attention in the past decade, with Sydney's lockout laws and Queensland's restrictions on trading hours garnering media attention. This study will investigate any changing trends in support towards alcohol policy and identify any demographic-specific shifts. Methods: Respondents from the National Drug Strategy Household Survey (conducted every 3 years from 2004 to 2019) were asked to gauge their level of support for 16 alcohol policy items proposed to reduce the problems associated with excessive alcohol use. Mean levels of support for various policy options, as well as demographic predictors of support, were assessed. Results: After an increase from 2004 to 2013, support for more evidence-based policies on alcohol (e.g., restricting the availability of alcohol) has decreased since 2013. Support for policy items that focus less on the restriction of the availability of alcohol and more on education remained relatively stable in comparison. While demographic groups continue to vary in their extent of support, shifts appear to be occurring fairly uniformly across sex, age, states and drinking groups. Discussion and Conclusions: Support for public health-oriented alcohol policies has been decreasing since 2013. The introduction of high-profile policies and less of a media focus on alcohol may be contributing to decreases in support.
The host galaxy of the super-luminous SN 2010gx and limits on explosive nickel-56 production
Creators: name: Chen, Ting-Wan
name: Smartt, Stephen J.
name: Bresolin, Fabio
name: Pastorello, Andrea
name: Kudritzki, Rolf-Peter
name: Kotak, Rubina
name: McCrum, Matt
name: Fraser, Morgan
name: Valenti, Stefano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Super-luminous supernovae have a tendency to occur in faint host galaxies which are likely to have low mass and low metallicity. While these extremely luminous explosions have been observed from z=0.1 to 1.55, the closest explosions allow more detailed investigations of their host galaxies. We present a detailed analysis of the host galaxy of SN 2010gx (z=0.23), one of the best studied super-luminous type Ic supernovae. The host is a dwarf galaxy (M_g=-17.42+/-0.17) with a high specific star formation rate. It has a remarkably low metallicity of 12+log(O/H)=7.5+/-0.1 dex as determined from the detection of the [OIII] 4363 Angs line. This is the first reliable metallicity determination of a super-luminous stripped-envelope supernova host. We collected deep multi-epoch imaging with Gemini + GMOS between 240-560 days after explosion to search for any sign of radioactive nickel-56, which might provide further insights on the explosion mechanism and the progenitor's nature. We reach griz magnitudes of m_AB~26, but do not detect SN 2010gx at these epochs. The limit implies that any nickel-56 production was similar to or below that of SN 1998bw (a luminous type Ic SN that produced around 0.4 M_sun of nickel-56). The low volumetric rates of these supernovae (~10^-4 of the core-collapse population) could be qualitatively matched if the explosion mechanism requires a combination of low-metallicity (below 0.2 Z_sun), high progenitor mass (>60 M_sun) and high rotation rate (fastest 10% of rotators).
description: 6 pages, 3 figures, 2 tables. Published in Astrophysical Journal Letters
Pollenanalytische Untersuchungen an einer Probegrabung bei Rebenstorf (Kr. Lüchow-Dannenberg)
Creators: name: Meier, B.
name: Firbas, F.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 33 (1964): Nachrichten aus Niedersachsens Urgeschichte
On a class of self-similar processes with stationary increments in higher order Wiener chaoses
Creators: name: Arras, Benjamin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G18, 60G17, 60G22, 42C40, 28A78, 28A80

description: We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes. This allows us to compute the pointwise and local Hölder regularity of sample paths and to analyse their behaviour at infinity. We also provide some results on the Hausdorff dimension of the range and graphs of multidimensional anisotropic self-similar processes with stationary increments defined by multiple Wiener integrals.
description: 22 pages
Comment on "Non-vacuum conformally flat space-times: dark energy"
Creators: name: Culetu, Hristu
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Ibohal, Ishwarchandra and Singh proposed a class of exact, non-vacuum and conformally flat solutions of Einstein's equations whose stress tensor $T_{ab}$ has negative pressure. We show that $T_{ab}$ corresponds to an anisotropic fluid and the equation of state parameter seems not to be $ω= -1/2$. We consider the authors' constant cannot be the mass of a test particle but is related to a Rindler acceleration of a spherical distribution of uniformly accelerating observers.
description: 5 pages, no figures, one reference updated, Accepted for publication in Astrophysics and Space Science
Entanglement Entropy of the Low-Lying Excited States and Critical Properties of an Exactly Solvable Two-Leg Spin Ladder with Three-Spin Interactions
Creators: name: Eloy, D.
name: Xavier, J. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work, we investigate an exactly solvable two-leg spin ladder with three-spin interactions. We obtain analytically the finite-size corrections of the low-lying energies and determine the central charge as well as the scaling dimensions. The model considered in this work has the same universality class of critical behavior of the XX chain with central charge c=1. By using the correlation matrix method, we also study the finite-size corrections of the Renyi entropy of the ground state and of the excited states. Our results are in agreement with the predictions of the conformal field theory.
description: 10 pages, 6 figures, 2 tables
Interview mit Jirina Siklová
Creators: name: Querelles-Net, Redaktion
name: Siklová, Jirina
Publisher: name: querelles-net
Year: 2001
Subjects: Osteuropa und Russland; Hochschule; Geschlecht; Gender

description: Interview mit Jirina Siklová
description: querelles-net, Nr. 3 (2001): Osteuropa und Rußland
Limit multiplicities for principal congruence subgroups of GL(n) and SL(n)
Creators: name: Finis, Tobias
name: Lapid, Erez
name: Mueller, Werner
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 11F72

description: We study the limiting behavior of the discrete spectra associated to the principal congruence subgroups of a reductive group over a number field. While this problem is well understood in the cocompact case (i.e., when the group is anisotropic modulo the center), we treat groups of unbounded rank. For the groups GL(n) and SL(n) we show that the suitably normalized spectra converge to the Plancherel measure (the limit multiplicity property). For general reductive groups we obtain a substantial reduction of the problem. Our main tool is the recent refinement of the spectral side of Arthur's trace formula obtained in [FLM11, FL11], which allows us to show that for GL(n) and SL(n) the contribution of the continuous spectrum is negligible in the limit.
description: 49 pages slightly enhanced version fixed several inaccuracies in first version
Air-Sea Gas Exchange Under Nature-Like Surfactant Influence In The Lab
Creators: name: Krall, Kerstin E.
name: Schneider-Zapp, Klaus
name: Reith, Svenja
name: Kiefhaber, Daniel
name: Jähne, Bernd
Publisher: name: Zenodo
Year: 2014
Subjects: air-sea gas exchange
sea surface microlayer

description: For the first time, air-sea gas exchange measurements under the influence of four surface active substances also found in the sea surface microlayer were performed in the Aeolotron wind-wave tank. Chosen surfactants were Dextran which is water soluble, as well as the insoluble substances Mono-Galactosyl-Diacylglycerol, Palmitic Acid and Phosphatidylglycerol. Gas transfer velocities of N2O and C2HF5 were measured using a mass balance approach combined with FT-IR spectroscopic methods. In addition, wave parameters like the mean square slope of the water surface were monitored. It was found that Dextran alone does not significantly decrease the gas transfer velocity compared to the clean water surface, while reduction for the full mix of surfactants was as high as 70%. For the full mix of surfactants, at a wind speed of around 7m/s the surfactant film ruptured and was mixed down into the water bulk where it was inefficient in suppressing gas transfer.
Air-Sea Gas Exchange And Momentum Transfer: Turbulence And Schmidt Number Dependency
Creators: name: Krall, Kerstin E.
name: Jähne, Bernd
Publisher: name: Zenodo
Year: 2014
Subjects: air-sea gas transfer
air-sea momentum transfer
Schmidt number exponent

description: The exchange of trace gases across the air-sea boundary layer is characterized by the gas transfer velocity k = 1/β u* Sc-n,with the friction velocity u* (a measure for momentum input into the water), the tracers Schmidt number Sc, and the Schmidt number exponent n which changes gradually from n=2/3 for a smooth water surface, to n=1/2 for a rough and wavy surface. β denotes the momentum transfer resistance, a dimensionless scaling parameter. In recent years, many new insights into the transition of the Schmidt number exponent n from smooth to rough conditions were acquired in detailed lab studies, while there is a lack of studies focusing on β. Using experimental data from various wind-wave tank laboratories, we found that β, just like the Schmidt number exponent n, is not a constant but depends on the state of the water surface as well as the degree of contamination of the water surface with surface active material.
On Spinors and Null Vectors
Creators: name: Budinich, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the relations between spinors and null vectors in Clifford algebra with particular emphasis on the conditions that a spinor must satisfy to be simple (also: pure). In particular we prove: i) a new property for null vectors: each of them bisects spinor space into two parts of equal size; ii) that simple spinors form one-dimensional subspaces of spinor space; iii) a necessary and sufficient condition for a spinor to be simple that generalizes a theorem of Cartan and Chevalley that appears now as a corollary of this result. We also show how to write down easily the most general spinor with a given associated totally null plane.
description: 20 pages, 16 references; this version contains small corrections with respect to the published one (proposition 8 and proof of theorem 2)
Gas fraction and star formation efficiency at z < 1.0
Creators: name: Combes, F.
name: Garcia-Burillo, S.
name: Braine, J.
name: Schinnerer, E.
name: Walter, F.
name: Colina, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: After new observations of 39 galaxies at z = 0.6-1.0 obtained at the IRAM 30m telescope, we present our full CO line survey covering the redshift range 0.2 < z < 1. Our aim is to determine the driving factors accounting for the steep decline in the star formation rate during this epoch. We study both the gas fraction, defined as Mgas/(Mgas+Mstar), and the star formation efficiency (SFE) defined by the ratio between far-infrared luminosity and molecular gas mass (LFIR/M(H2), i.e. a measure for the inverse of the gas depletion time. The sources are selected to be ultra-luminous infrared galaxies (ULIRGs), with LFIR greater than 10^12 Lo and experiencing starbursts. When we adopt a standard ULIRG CO-to-H2 conversion factor, their molecular gas depletion time is less than 100 Myr. Our full survey has now filled the gap of CO observations in the 0.2
description: 16 pages, 21 figures, accepted in A&A
Effect of scalings and translations on the supersymmetric quantum mechanical structure of soliton systems
Creators: name: Arancibia, Adrian
name: Guilarte, Juan Mateos
name: Plyushchay, Mikhail S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We investigate a peculiar supersymmetry of the pairs of reflectionless quantum mechanical systems described by n-soliton potentials of a general form that depends on n scaling and n translation parameters. We show that if all the discrete energy levels of the subsystems are different, the superalgebra, being insensitive to translation parameters, is generated by two supercharges of differential order 2n, two supercharges of order 2n+1, and two bosonic integrals of order 2n+1 composed from Lax integrals of the partners. The exotic supersymmetry undergoes a reduction when r discrete energy levels of one subsystem coincide with any r discrete levels of the partner, the total order of the two independent intertwining generators reduces then to 4n-2r+1, and the nonlinear superalgebraic structure acquires a dependence on r relative translations. For a complete pairwise coincidence of the scaling parameters which control the energies of the bound states and the transmission scattering amplitudes, the emerging isospectrality is detected by a transmutation of one of the Lax integrals into a bosonic central charge. Within the isospectral class, we reveal a special case giving a new family of finite-gap first order Bogoliubov-de Gennes systems related to the AKNS integrable hierarchy.
description: 34 pages, 5 figures; improved and expanded version to appear in Phys. Rev. D
Lectures on bifunctors and finite generation of rational cohomology algebras
Creators: name: van der Kallen, Wilberd
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 20G10 (Primary) 18G10 (Secondary)

description: This text is an updated version of material used for a course at Université de Nantes, part of `Functor homology and applications', April 23-27, 2012. The proof by Touzé of my conjecture on cohomological finite generation (CFG) has been one of the successes of functor homology. We will not treat the original proof in any detail. Instead we will focus on a formality conjecture of Chałupnik that leads to second generation proof of the existence of the universal classes of Touzé.
description: 30 pages; title changed
Der Feminismus ist tot? Es lebe der Feminismus! Das „False Feminist Death-Syndrome“
Creators: name: Hark, Sabine
name: Kerner, Ina
Publisher: name: querelles-net
Year: 2007
Subjects: Feminismus; Hochschule; Geschlecht; Gender

description: querelles-net, Nr. 21 (2007): Offenes Heft
Mitigating LLM Hallucinations with Knowledge Graphs: A Case Study
Creators: name: Li, Harry
name: Appleby, Gabriel
name: Alperin, Kenneth
name: Gomez, Steven R
name: Suh, Ashley
Publisher: name: Zenodo
Year: 2025
Subjects: Large language models
knowledge graphs
visual analytics

description: High-stakes domains like cyber operations need responsible and trustworthy AI methods. While LLMs are becoming increasingly popular in these domains, they still suffer from hallucinations. This research paper provides learning outcomes from a case study with LinkQ, an open-source natural language interface that was developed to combat hallucinations by forcing an LLM to query a knowledge graph (KG) for ground-truth data during question-answering (QA). We conduct a quantitative evaluation of LinkQ using a well-known KGQA dataset, showing that the system outperforms GPT-4 but still struggles with certain question categories — suggesting that alternative query construction strategies will need to be investigated in future LLM querying systems. We discuss a qualitative study of LinkQ with two domain experts using a real-world cybersecurity KG, outlining these experts' feedback, suggestions, perceived limitations, and future opportunities for systems like LinkQ.
Spin-orbit coupling assisted by flexural phonons in graphene
Creators: name: Ochoa, H.
name: Neto, A. H. Castro
name: Fal'ko, V. I.
name: Guinea, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the couplings between spins and phonons in graphene. We present a complete analysis of the possible couplings between spins and flexural, out of plane, vibrations. From tight-binding models we obtain analytical and numerical estimates of their strength. We show that dynamical effects, induced by quantum and thermal fluctuations, significantly enhance the spin-orbit gap.
description: 9 pages, final version accepted in PRB
Thermal vortex dynamics in thin circular ferromagnetic nanodisks
Creators: name: Wysin, G. M.
name: Figueiredo, W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of gyrotropic vortex motion in a thin circular nanodisk of soft ferromagnetic material is considered. The demagnetization field is calculated using two-dimensional Green's functions for the thin film problem and fast Fourier transforms. At zero temperature, the dynamics of the Landau-Lifshitz-Gilbert equation is simulated using fourth order Runge-Kutta integration. Pure vortex initial conditions at a desired position are obtained with a Lagrange multipliers constraint. These methods give accurate estimates of the vortex restoring force constant $k_F$ and gyrotropic frequency, showing that the vortex core motion is described by the Thiele equation to very high precision. At finite temperature, the second order Heun algorithm is applied to the Langevin dynamical equation with thermal noise and damping. A spontaneous gyrotropic motion takes place without the application of an external magnetic field, driven only by thermal fluctuations. The statistics of the vortex radial position and rotational velocity are described with Boltzmann distributions determined by $k_F$ and by a vortex gyrotropic mass $m_G=G^2/k_F$, respectively, where $G$ is the vortex gyrovector.
description: 18 pages, 17 figures
H. Kranz, Lütticher Steinkohlen-Bergbau im Mittelalter. Aufstieg - Bergrecht - Unternehmer - Umwelt - Technik. Préface de C. Gaier, 2000. - Quellen zum Lütticher Steinkohlen-Bergbau im Mittelalter. Urkunden - Register- und Rechnungseinträge - Bergrecht, b
Creators: name: Braunstein, Philippe
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 29 Nr. 1 (2002)
Goos-Hänchen and Imbert-Fedorov beam shifts: An overview
Creators: name: Bliokh, Konstantin Y.
name: Aiello, Andrea
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider reflection and transmission of polarized paraxial light beams at a plane dielectric interface. The field transformations taking into account a finite beam width are described based on the plane-wave representation and geometric rotations. Using geometrical-optics coordinate frames accompanying the beams, we construct an effective Jones matrix characterizing spatial-dispersion properties of the interface. This results in a unified self-consistent description of the Goos-Hänchen and Imbert-Fedorov shifts (the latter being also known as spin-Hall effect of light). Our description reveals intimate relation of the transverse Imbert-Fedorov shift to the geometric phases between constituent waves in the beam spectrum and to the angular momentum conservation for the whole beam. Both spatial and angular shifts are considered as well as their analogues for the higher-order vortex beams carrying intrinsic orbital angular momentum. We also give a brief overview of various extensions and generalizations of the basic beam-shift phenomena and related effects.
description: 24 pages, 6 figure, to appear in J. Opt. (special issue "Beam shifts")
Formal Hecke algebras and algebraic oriented cohomology theories
Creators: name: Hoffnung, Alex
name: Malagón-Lopez, José
name: Savage, Alistair
name: Zainoulline, Kirill
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 20C08, 14F43

description: In the present paper we generalize the construction of the nil Hecke ring of Kostant-Kumar to the context of an arbitrary algebraic oriented cohomology theory of Levine-Morel and Panin-Smirnov, e.g. to Chow groups, Grothendieck's K_0, connective K-theory, elliptic cohomology, and algebraic cobordism. The resulting object, which we call a formal (affine) Demazure algebra, is parameterized by a one-dimensional commutative formal group law and has the following important property: specialization to the additive and multiplicative periodic formal group laws yields completions of the nil Hecke and the 0-Hecke rings respectively. We also introduce a deformed version of the formal (affine) Demazure algebra, which we call a formal (affine) Hecke algebra. We show that the specialization of the formal (affine) Hecke algebra to the additive and multiplicative periodic formal group laws gives completions of the degenerate (affine) Hecke algebra and the usual (affine) Hecke algebra respectively. We show that all formal affine Demazure algebras (and all formal affine Hecke algebras) become isomorphic over certain coefficient rings, proving an analogue of a result of Lusztig.
description: 28 pages. v2: Some results strengthened and references added. v3: Minor corrections, section numbering changed to match published version. v4: Sign errors in Proposition 6.8(d) corrected. This version incorporates an erratum to the published version
EVALUACIÓN DE LA DOSIS ÓPTIMA DE PROGESTERONA NATURAL PARA TRATAR LA AMENAZA DE PARTO PRETÉRMINO EN EMBARAZOS DE MÁS DE 32 SEMANAS. HOSPITAL ‘DR. TEODORO MALDONADO CARBO’. 2010-2011.pdf
Creators: name: Dickens, Kevin
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 111402 Obstetrics and Gynaecology
subject: FOS: Clinical medicine

description: Background: Threat of premature birth still remains a major health problem for developing countries, and that often end in premature birth which is responsible for most neonatal morbidity and mortality. Although tocolytic therapy with NSAID´S, bethamimetics, ACE inhibitors and nitrites currently achieved successfully address this entity, still need to extend the time of pregnancy to an optimal delay. It has been suggested that the use of natural micronized progesterone may be an important option as a tocolytic treatment due to their pharmacological properties, and although its use is common at different doses, there is no formal report on this aspect in order to establish which the optimal one is. Aims: To evaluate the dose of natural micronized progesterone for the optimal control of threat of premature birth on pregnancies of 32 weeks or more. Methodology: It was conducted a controlled clinical trial which were included 137 after informed consent and by convenience, that were divided according to the dose of progesterone that they received with the tocolytic treatment (200, 400, 600 mg or none). Statistical Analysis: X2 homogeneity test and the Kolmogorov-Smirnoff test. Values less than P < 0.001 were considered significant. Results: Deliveries that ended at term and preterm were significantly different (D: 0.316 = P < 0.001) depending on the dose of natural micronized progesterone, obtaining the highest statistical benefit with 600 mg (97%). The number of weeks which the pregnancies were extended in patients with threat of premature pregnancy was statistically higher (X2 32.09 = P < 0.001) while the dose of the drug was higher. The presence of adverse effects was also significantly higher (X2 1173,7 = P < 0.001) the higher was the dose of progesterone, especially sedation was very high in patients who were administered 600 mg (78%). Conclusion: natural micronized progesterone dose of 600 mg improves tocolytic therapy in patients with threat of preterm labor.
O. Dann, Vereinsbildung und Nationsbildung. Sieben Beiträge, hg. von A. Esser, J. Koll, G. Mölich, R. Neuss, 2003
Creators: name: Walle, Marianne
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 32 Nr. 3 (2005)
Numerical modeling of the disruption of Comet D/1993 F2 Shoemaker-Levy 9 representing the progenitor by a gravitationally bound assemblage of randomly shaped polyhedra
Creators: name: Movshovitz, Naor
name: Asphaug, Erik
name: Korycansky, Donald
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We advance the modeling of rubble-pile solid bodies by re-examining the tidal breakup of comet Shoemaker-Levy 9, an event that occurred during a 1.33 Jupiter radii encounter with that planet in July 1992. Tidal disruption of the comet nucleus led to a chain of sub-nuclei about 100-1000 m in diameter; these went on to collide with the planet two years later (Chodas & Yeomans 1996). They were intensively studied prior to and during the collisions, making SL9 the best natural benchmark for physical models of small body disruption. For the first time in the study of this event, we use numerical codes treating rubble-piles as collections of polyhedra (Korycansky & Asphaug 2009). This introduces forces of dilatation and friction, and inelastic response. As in our previous studies (Asphaug & Benz 1994,1996) we conclude that the progenitor must have been a rubble-pile, and we obtain approximately the same pre-breakup diameter (about 1.5 km) in our best fits to the data. We find that the inclusion of realistic fragment shapes leads to grain locking and dilatancy, so that even in the absence of friction or other dissipation we find that disruption is overall more difficult than in our spheres-based simulations. We constrain the comet's bulk density at about 300-400 kg/m^3, half that of our spheres-based predictions and consistent with recent estimates derived from spacecraft observations.
description: Submitted to The Astrophysical Journal (7/16/12) added Acknowledgments (8/29/12) accepted, peer reviewed version
A stochastic variational framework for fitting and diagnosing generalized linear mixed models
Creators: name: Tan, Linda S. L.
name: Nott, David J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In stochastic variational inference, the variational Bayes objective function is optimized using stochastic gradient approximation, where gradients computed on small random subsets of data are used to approximate the true gradient over the whole data set. This enables complex models to be fit to large data sets as data can be processed in mini-batches. In this article, we extend stochastic variational inference for conjugate-exponential models to nonconjugate models and present a stochastic nonconjugate variational message passing algorithm for fitting generalized linear mixed models that is scalable to large data sets. In addition, we show that diagnostics for prior-likelihood conflict, which are useful for Bayesian model criticism, can be obtained from nonconjugate variational message passing automatically, as an alternative to simulation-based Markov chain Monte Carlo methods. Finally, we demonstrate that for moderate-sized data sets, convergence can be accelerated by using the stochastic version of nonconjugate variational message passing in the initial stage of optimization before switching to the standard version.
description: 42 pages, 13 figures, 9 tables