cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Examining the Role of Organizational Politics on Disruptive Employee Behavior in Banks
Creators: name: Arshad, Hamza
name: Nugraha, S.Sos, M.Si, Dr. Hari Susanta
name: Dewi,S.Sos,M.Si, Dr.Reni Shinta
name: Arshad, Iqra
Publisher: name: Zenodo
Year: 2023

description: This study delves into the intricacies of employee behavior within organizations, seeking to uncover the root causes of negative conduct and how to effectively address it. By doing so, the research aims to enhance individual and collective productivity. The insights drawn from this study hold the potential to offer practical and theoretical advancements that will guide organizations in fostering a more productive and harmonious work environment.

The research methodology employed here involves a comprehensive analysis of perceived organizational politics and its correlation with Disruptive Employee Behavior. This analysis is extended to encompass antecedent factors such as passive leadership, organizational trust, and relationship conflict. To gather the necessary data, a survey questionnaire was utilized as the primary data collection tool. A total of 350 questionnaires were distributed among various organizations, out of which 294 were effectively collected for analysis, reflecting a response rate of 84.46 percent.

The findings of this study affirm a robust connection between perceived organizational politics and disruptive Employee Behavior. Through statistical analyses, it became evident that factors like passive leadership, organizational trust, and relationship conflict are significant contributors to this dynamic. The study underscores the importance of recognizing these associations to create a conducive work environment that minimizes disruptive behavior and maximizes productivity. Organizations can benefit from a heightened awareness of perceived organizational politics and its impact on behavior, allowing them to foster a more positive and productive atmosphere. By addressing issues related to passive leadership, trust, and relationship conflict, organizations can proactively mitigate negative employee behavior, thus promoting a culture of harmony and efficiency.

This research not only sheds light on the complexities of employee behavior within organizations but also serves as a roadmap for cultivating a healthier workplace. The study's insights provide valuable guidance for organizations to address disruptive behavior by understanding its underlying causes. Ultimately, this research contributes to the collective effort of creating workplaces that empower employees, foster trust, and boost overall organizational success. The groundwork laid here also sets the stage for future research inquiries in this critical domain.
Reconstructing Cosmic Polarization Rotation with ResUNet-CMB
Creators: name: Guzman, Eric
name: Meyers, Joel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Cosmic polarization rotation, which may result from parity-violating new physics or the presence of primordial magnetic fields, converts $E$-mode polarization of the cosmic microwave background (CMB) into $B$-mode polarization. Anisotropic cosmic polarization rotation leads to statistical anisotropy in CMB polarization and can be reconstructed with quadratic estimator techniques similar to those designed for gravitational lensing of the CMB. At the sensitivity of upcoming CMB surveys, lensing-induced $B$-mode polarization will act as a limiting factor in the search for anisotropic cosmic polarization rotation, meaning that an analysis which incorporates some form of delensing will be required to improve constraints on the effect with future surveys. In this paper we extend the ResUNet-CMB convolutional neural network to reconstruct anisotropic cosmic polarization rotation in the presence of gravitational lensing and patchy reionization, and we show that the network simultaneously reconstructs all three effects with variance that is lower than that from the standard quadratic estimator nearly matching the performance of an iterative reconstruction method.
description: 11 pages, 7 figures. Updated to match published content. Code available from https://github.com/EEmGuzman/resunet-cmb
Two-dimensional defect modes in optically induced photonic lattices
Creators: name: Wang, Jiandong
name: Yang, Jianke
name: Chen, Zhigang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this article, localized linear defect modes due to bandgap guidance in two-dimensional photonic lattices with localized or non-localized defects are investigated theoretically. First, when the defect is localized and weak, eigenvalues of defect modes bifurcated from edges of Bloch bands are derived analytically. It is shown that in an attractive (repulsive) defect, defect modes bifurcate out from Bloch-band edges with normal (anomalous) diffraction coefficients. Furthermore, distances between defect-mode eigenvalues and Bloch-band edges are exponentially small functions of the defect strength, which is very different from the one-dimensional case where such distances are quadratically small with the defect strength. It is also found that some defect-mode branches bifurcate not from Bloch-band edges, but from quasi-edge points within Bloch bands, which is very unusual. Second, when the defect is localized but strong, defect modes are determined numerically. It is shown that both the repulsive and attractive defects can support various types of defect modes such as fundamental, dipole, quadrupole, and vortex modes. These modes reside in various bandgaps of the photonic lattice. As the defect strength increases, defect modes move from lower bandgaps to higher ones when the defect is repulsive, but remain within each bandgap when the defect is attractive, similar to the one-dimensional case. The same phenomena are observed when the defect is held fixed while the applied dc field (which controls the lattice potential) increases. Lastly, if the defect is non-localized (i.e. it persists at large distances in the lattice), it is shown that defect modes can be embedded inside the continuous spectrum, and they can bifurcate out from edges of the continuous spectrum algebraically rather than exponentially.
description: 17 pages, 10 figures, to appear in Phys. Rev. A
Spin-orbit induced equilibrium spin currents in materials
Creators: name: Droghetti, Andrea
name: Rungger, Ivan
name: Rubio, Angel
name: Tokatly, Ilya V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The existence of spin-currents in absence of any driving external fields is commonly considered an exotic phenomenon appearing only in quantum materials, such as topological insulators. We demonstrate instead that equilibrium spin currents are a rather general property of materials with non negligible spin-orbit coupling (SOC). Equilibrium spin currents can be present at the surfaces of a slab. Yet, we also propose the existence of global equilibrium spin currents, which are net bulk spin-currents along specific crystallographic directions of materials. Equilibrium spin currents are allowed by symmetry in a very broad class of systems having gyrotropic point groups. The physics behind equilibrium spin currents is uncovered by making an analogy between electronic systems with SOC and non-Abelian gauge theories. The electron spin can be seen as the analogous of the color degree of freedom and equilibrium spin currents can then be identified with diamagnetic color currents appearing as the response to an effective non-Abelian magnetic field generated by SOC. Equilibrium spin currents are not associated with spin transport and accumulation, but they should nonetheless be carefully taken into account when computing transport spin currents. We provide quantitative estimates of equilibrium spin currents for several systems, specifically metallic surfaces presenting Rashba-like surface states, nitride semiconducting nanostructures and bulk materials, such as the prototypical gyrotropic medium tellurium. In doing so, we also point out the limitations of model approaches showing that first-principles calculations are needed to obtain reliable predictions. We therefore use Density Functional Theory computing the so-called bond currents, which represent a powerful tool to understand the relation between equilibrium currents, electronic structure and crystal point group.
A Comparison of Mixed-Higgs Scenarios In the NMSSM and the MSSM
Creators: name: Dermisek, Radovan
name: Gunion, John F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study scenarios in the minimal and next-to minimal supersymmetric models in which the lightest CP-even Higgs boson can have mass below the 114 GeV standard model LEP limit by virtue of reduced ZZ coupling due to substantial mixing among the Higgs bosons. We pay particular attention to the size of corrections from superpartners needed for these scenarios to be viable and point to boundary conditions at large scales which lead to these scenarios while at the same time keeping electroweak fine tuning modest in size. We find that naturalness of electroweak symmetry breaking in the mixed-Higgs scenarios of both models points to the same region of soft supersymmetry breaking terms, namely those leading to large mixing in the stop sector at the electroweak scale, especially if we also require that the lightest CP-even Higgs explains the Higgs-like LEP events at about 98 GeV.
description: 14 pages, 19 figures
Angular momentum transport and element mixing in the stellar interior I. Application to the rotating Sun
Creators: name: Yang, W. M.
name: Bi, S. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The purpose of this work was to obtain diffusion coefficient for the magnetic angular momentum transport and material transport in a rotating solar model. We assumed that the transport of both angular momentum and chemical elements caused by magnetic fields could be treated as a diffusion process. The diffusion coefficient depends on the stellar radius, angular velocity, and the configuration of magnetic fields. By using of this coefficient, it is found that our model becomes more consistent with the helioseismic results of total angular momentum, angular momentum density, and the rotation rate in a radiative region than the one without magnetic fields. Not only can the magnetic fields redistribute angular momentum efficiently, but they can also strengthen the coupling between the radiative and convective zones. As a result, the sharp gradient of the rotation rate is reduced at the bottom of the convective zone. The thickness of the layer of sharp radial change in the rotation rate is about 0.036 $R_{\odot}$ in our model. Furthermore, the difference of the sound-speed square between the seismic Sun and the model is improved by mixing the material that is associated with angular momentum transport.
description: 8 pages, 2 figures
Objects In Telescope Are Farther Than They Appear: How diffraction tricked Galileo into mismeasuring the distances to the stars
Creators: name: Graney, Christopher M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Galileo determined distances to stars based on the assumption that stars were suns, the apparent sizes of stars as seen through his telescope, and basic geometry. However, the apparent sizes that he measured were the result of diffraction and not related to the actual sizes of the stars. Galileo's methods and observations were good, but since he was unknowingly observing diffraction artifacts and not the physical bodies of stars he greatly underestimated the distances to the stars.
description: Eight pages, 4 figures. This article has been accepted for publication by The Physics Teacher. After it is published, it will be found at http://scitation.aip.org/tpt/
The Fermat Rule for Set Optimization Problems with Lipschitzian Set-Valued Mappings
Creators: name: Bouza, Gemayqzel
name: Quintana, Ernest
name: Tammer, Christiane
name: Tuan, Vu Anh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49J53, 90C26, 90C29, 90C48

description: In this paper, we consider set optimization problems where the solution concept is given by the set approach. Specifically, we deal with the lower less and the upper less set relations. First, we derive the convexity and Lipschitzianity of suitable scalarizing functionals under the assumption that the set-valued objective mapping has certain convexity and Lipschitzianity properties. Then, we obtain upper estimates of the limiting subdifferential of these functionals. These results, together with the properties of the scalarization functionals, allow us to obtain a Fermat rule for set optimization problems with Lipschitzian data.
Quenching of satellite galaxies of Milky Way analogues: reconciling theory and observations
Creators: name: Font, Andreea S.
name: McCarthy, Ian G.
name: Belokurov, Vasily
name: Brown, Shaun T.
name: Stafford, Sam G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The vast majority of low-mass satellite galaxies around the Milky Way and M31 appear virtually devoid of cool gas and show no signs of recent or ongoing star formation. Cosmological simulations demonstrate that such quenching is expected and is due to the harsh environmental conditions that satellites face when joining the Local Group (LG). However, recent observations of Milky Way analogues in the SAGA survey present a very different picture, showing the majority of observed satellites to be actively forming stars, calling into question the realism of current simulations and the typicality of the LG. Here we use the ARTEMIS suite of high-resolution cosmological hydrodynamical simulations to carry out a careful comparison with observations of dwarf satellites in the LG, SAGA, and the Local Volume (LV) survey. We show that differences between SAGA and the LG and LV surveys, as well as between SAGA and the ARTEMIS simulations, can be strongly reduced by considering differences in the host mass distributions and (more importantly) observational selection effects, specifically that low-mass satellites which have only recently been accreted are more likely to be star-forming, have a higher optical surface brightness, and are therefore more likely to be included in the SAGA survey. This picture is confirmed using data from the deeper LV survey, which shows pronounced quenching at low masses, in accordance with the predictions of LCDM-based simulations.
description: 13 pages, 8 figures, MNRAS, accepted for publication. Host mass rescaling corrected and additional discussion of observational selection effects included
Landouria moussoniana Nurinsiyah & Neiber & Hausdorf 2019, comb. nov.
Creators: name: Nurinsiyah, Ayu Savitri
name: Neiber, Marco T.
name: Hausdorf, Bernhard
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Camaenidae
Landouria
Landouria moussoniana

description: Landouria moussoniana (Martens, 1867) comb. nov.
Figs 55, 75; Tables 3–4
Helix sumatrana var. moussoniana Martens, 1867: 266 (“Oestliches Java, im Tengergebirge bei Wonosari”).
Landouria rotatoria – van Benthem Jutting 1950: 461 (in part). (not Pfeiffer, 1842)
Diagnosis
Landouria moussoniana is characterized by a tightly coiled, keeled shell with a hardly eccentric, very wide umbilicus.
Material examined
Syntypes
INDONESIA • 6 spec.; East Java, Wonosari; 7°54′ S, 112°49′ E; ZMB 109902.
Description
SHELL (Fig. 75; Tables 3–4). Depressed conical, with 5–6.25 slightly convex whorls; protoconch almost smooth; teleoconch with irregular wrinkles; apical side with indistinct incised spiral lines, umbilical side with more distinct spiral lines; scaly processes not observed; tuberculate around umbilicus; brownishcorneous; body whorl keeled; aperture oval; upper insertion of peristome hardly or distinctly descending; peristome expanded, reflexed and slightly thickened; umbilicus very wide, comprising 37–38% of shell diameter, hardly obscured by columellar edge.
GENITALIA. Unknown.
Remarks
Martens (1867) recorded L. moussoniana from Wonosari in the Tengger Mountains together with L. smimensis and another form of Landouria that he included in his L. intumescens. Landouria moussoniana differs from L. intumescens in having a more tightly coiled, less sharply keeled shell with a wider umbilicus (U/D 0.37–0.38 vs 0.22–0.34 in L. intumescens).
Distribution
Landouria moussoniana is endemic to the Tengger Mountains in East Java (Fig. 55).
description: Published as part of Nurinsiyah, Ayu Savitri, Neiber, Marco T. & Hausdorf, Bernhard, 2019, Revision of the land snail genus Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Java, pp. 1-73 in European Journal of Taxonomy 526 on pages 53-54, DOI: 10.5852/ejt.2019.526, http://zenodo.org/record/3152217
A wide deep infrared look at the Pleiades with UKIDSS: new constraints on the substellar binary fraction and the low mass IMF
Creators: name: Lodieu, N.
name: Dobbie, P. D.
name: Deacon, N. R.
name: Hodgkin, S. T.
name: Hambly, N. C.
name: Jameson, R. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a deep wide-field near-infrared survey of 12 square degrees of the Pleiades conducted as part of the UKIDSS Deep Infrared Sky Survey (UKIDSS) Galactic Cluster Survey (GCS). We have extracted over 340 high probability proper motion members down to 0.03 solar masses using a combination of UKIDSS photometry and proper motion measurements obtained by cross-correlating the GCS with data from the Two Micron All Sky Survey (2MASS), the Isaac Newton (INT) and the Canada-France-Hawai'i (CFHT) telescopes. Additionally, we have unearthed 73 new candidate brown dwarf members on the basis of five band UKIDSS photometry alone. We have identified 23 substellar multiple system candidates out of 63 candidate brown dwarfs from the (Y-K,Y) and (J-K,J) colour-magnitude diagrams, yielding a binary frequency of 28-44% in the 0.075-0.030 Msun mass range. Our estimate is three times larger than the binary fractions reported from high-resolution imaging surveys of field ultracool dwarfs and Pleiades brown dwarfs. However, it is marginally consistent with our earlier ``peculiar'' photometric binary fraction of 50+/-10% presented in Pinfield et al. (2003), in good agreement with the 32-45% binary fraction derived from the recent Monte-Carlo simulations of Maxted & Jeffries (2005) and compatible with the 26+/-10% frequency recently estimated by Basri & Reiners (2006). A tentative estimate of the mass ratios from photometry alone seems to support the hypothesis that binary brown dwarfs tend to reside in near equal-mass ratio systems. (abridged)
description: 21 pages, 8 figures, 6 tables, 1 electronic table, 6 appendices with tables, accepted to MNRAS
English Foreign Language Teachers Awareness and Attitude towards Gender-Sensitivity in Language Use
Creators: name: Wondimu, Mulu
Publisher: name: Abyssinia Journal of Business and Social Sciences
Year: 2019

description: This quantitative descriptive survey study was designed with the aim of investigating the awareness and attitude of EFL (English Foreign Language) teachers towards gender-sensitivity in language use. The participants of the study were 102 EFL teachers who were comprehensively taken from ten secondary and preparatory schools. Among the 102 participants, 47 are female and 55 are male. This study looks specifically at awareness and attitude of teachers regarding gender sensitivity in language use and their difference up on the variable awareness. Questionnaires with close-ended items for attitude and with mixed type of item for awareness were employed to gather data. Descriptive statistics computing data regarding attitude and Independent T-test to compare the mean of female and male respondents regarding awareness were used. The results from the descriptive statistics show that the participant teachers generally have positive attitude towards the issue gendersensitivity in language use. No significant difference was found between female and male EFL teachers in their awareness according to the data from the independent T-test. Finally, in line with the findings, recommendations, like, an enhancement of the EFL teachers’ awareness in gender-fair language should be strengthened through gender sensitive and gender reflective awareness seminar,-workshop and others were forwarded.
description: Abyssinia Journal of Business and Social Sciences , Vol. 4 No. 1 (2019)
Overview of the parametric representation of renormalizable non-commutative field theory
Creators: name: Tanasa, Adrian
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review here the parametric representation of Feynman amplitudes of renormalizable non-commutative quantum field models.
description: 10 pages, 3 figures, to be published in "Journal of Physics: Conference Series"
The effects of endurance training upon ratings of perceived exertion
Creators: name: Carton, Richard Lee
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this investigation was to examine differences in ratings of perceived exertion (RPE) at equivalent percentages of subjects maximal work capacity (equivalent relative workloads), before and: after endurance training. Experimental (N=13) and control (N=13) groups comprised of healthy male subjects (x age=21.2 years, VO2max=50.4 ml‧kg⁻¹‧min⁻¹) volunteered to participate in the study. All subjects completed progressive treadmill tests at approximately the same time of day, prior to and at the termination of the 9-week study period. Running commenced at 8 km-hr-1 and increased by 0.8 km-hr⁻¹ per minute to volitional fatigue. Values for RPE were obtained at 30 second intervals. The exercise program consisted of treadmill running, 3 days per week, at workloads which were systematically progressed (heart rate=171.5 ± 5.7, x ± SD). Statistical analysis to measure changes in RPE over time was performed using a 2x2x5 ANOVA with repeated measures on the third factor. Reductions in RPE averaged 14% and 17% at a given VO2 and velocity, respectively, in the training group. At equivalent relative workloads, decreases in RPE averaged 7.2% for VO2 and 12.8% for velocity. When modifications in RPE in the control group were considered, the changes in RPE in the training group were not significant (p<0.05). These findings emphasize the necessity of a control group in studies which employ RPE as a dependent variable. Despite the decrements in RPE in the control group, changes in RPE in the training group did approach significance at fixed velocities (p<0.08) and relative velocities (p<0.06). These decreases were greatest at moderate workloads (55-75% of maximal capacity), and appeared to be due to a reduction in local effort cues. It was concluded that the influence of training upon RPE at relative workloads is dependent upon the magnitude of corresponding physiological adaptations. The results also support the view that the changes in RPE which become apparent with training are related to the method of analysis which is used.
Information retrieval and eigenstates coalescence in a non-Hermitian quantum system with anti-$\mathcal{PT}$ symmetry
Creators: name: Ding, Liangyu
name: Shi, Kaiye
name: Wang, Yuxin
name: Zhang, Qiuxin
name: Zhu, Chenhao
name: Zhang, Ludan
name: Yi, Jiaqi
name: Zhang, Shuaining
name: Zhang, Xiang
name: Zhang, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Non-Hermitian systems with parity-time reversal ($\mathcal{PT}$) or anti-$\mathcal{PT}$ symmetry have attracted a wide range of interest owing to their unique characteristics and counterintuitive phenomena. One of the most extraordinary features is the presence of an exception point (EP), across which a phase transition with spontaneously broken $\mathcal{PT}$ symmetry takes place. We implement a Floquet Hamiltonian of a single qubit with anti-$\mathcal{PT}$ symmetry by periodically driving a dissipative quantum system of a single trapped ion. With stroboscopic emission and quantum state tomography, we obtain the time evolution of density matrix for an arbitrary initial state, and directly demonstrate information retrieval, eigenstates coalescence, and topological energy spectra as unique features of non-Hermitian systems.
description: 6 pages, 5 figures
Which way does stimulated emission go?
Creators: name: Wong-Campos, J. David
name: Porto, Trey
name: Cohen, Adam E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Is it possible to form an image using light produced by stimulated emission? Here we study light scatter off an assembly of excited chromophores. Due to the Optical Theorem, stimulated emission is necessarily accompanied by excited state Rayleigh scattering. Both processes can be used to form images, though they have different dependencies on scattering direction, wavelength and chromophore configuration. Our results suggest several new approaches to optical imaging using fluorophore excited states.
description: 11 pages, 4 figures
Stimulated Emission Imaging
Creators: name: Sanjay R. Varma
name: Simona Patange
name: Andrew G. York
Publisher: name: Zenodo
Year: 2020

description: Zenodo hosts the archival version of this document; for convenient viewing, please visit andrewgyork.github.io/stimulated_emission_imaging

Abstract

Stimulated emission is often described as indistinguishable from the stimulating beam, sharing the same phase, frequency, polarization, and direction of travel. What direction does stimulated emission travel when the emitter is pointlike? Pointlike sources typically emit in all directions (a spherical wave), but if the stimulating beam is nearly monodirectional (a plane wave), will the stimulated emission propagate in all directions, or just one? We perform simple experiments to explore this apparent paradox, with an eye towards technological utility. In particular, does stimulated emission encode information about an emitter's location? Can lenses use this stimulated emission to form images of emitter distributions? If so, this suggests a way to combine the high signal rates of transmitted light microscopy with the specificity of fluorescence microscopy.
Interferometric 12CO(J=2-1) image of the Nuclear Region of Seyfert 1 Galaxy NGC 1097
Creators: name: Hsieh, Pei-Ying
name: Matsushita, Satoki
name: Lim, Jeremy
name: Kohno, Kotaro
name: Sawada-Satoh, Satoko
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have mapped the central region of the Seyfert 1 galaxy NGC 1097 in 12CO(J=2-1) with the Submillieter Array (SMA). The 12CO(J=2-1) map shows a central concentration and a surrounding ring, which coincide respectively with the Seyfert nucleus and a starburst ring. The line intensity peaks at the nucleus, whereas in a previously published 12CO(J=1-0) map the intensity peaks at the starburst ring. The molecular ring has an azimuthally averaged 12CO(J=2-1)/(J=1-0) intensity ratio (R21) of about unity, which is similar to those in nearby active star forming galaxies, suggesting that most of the molecular mass in the ring is involved in fueling the starburst. The molecular gas can last for only about 1.2\times10^8 years without further replenishment assuming a constant star formation rate and a perfect conversion of gas to stars. The velocity map shows that the central molecular gas is rotating with the molecular ring in the same direction, while its velocity gradient is much steeper than that of the ring. This velocity gradient of the central gas is similar to what is usually observed in some Seyfert 2 galaxies. To view the active nucleus directly in the optical, the central molecular gas structure can either be a low-inclined disk or torus but not too low to be less massive than the mass of the host galaxy itself, be a highly-inclined thin disk or clumpy and thick torus, or be an inner part of the galactic disk. The R21 value of ~1.9 of the central molecular gas component, which is significantly higher than the value found at the molecular gas ring, indicates that the activity of the Seyfert nucleus may have a significant influence on the conditions of the molecular gas in the central component.
description: 22 pages, 4 figures, accepted by ApJ
title: Das Dilemma der EU-Wahlbeteiligung. Europawahlanalyse 2014
Creators: name: Gasser, Florian
Publisher: name: Universität Innsbruck
Year: 2015

description: Die Wahl zum Europäischen Parlament zählt zu einer der wohl weitreichendsten Wahlen der gesamten Welt. Die Relevanz dieser Wahl scheint sich der Bevölkerung jedoch nicht völlig zu erschließen und spiegelt sich nicht in der Wahlbeteiligung wieder. Im Rahmen dieser Arbeit wird das Phänomen der Second Order Election in Anbetracht der neuesten Wahlergebnisse genauer unter die Lupe genommen. Zusätzlich wurden Analysen durchgeführt, welcher der Frage, weshalb die Wahlbeteiligung einiger Staaten derart gering ausfällt, obwohl das Ansehen der EU nach Daten des Eurobarometers in jenen als überdurchschnittlich gut ausgewiesen wird, auf den Grund gehen. Die Wahlbeteiligungsentwicklung ist sowohl bei EU- als auch bei nationalen Wahlen über die Zeit rückläufig, wobei die Differenz der Wahlbeteiligungsquote im Schnitt immer noch mehr als 20 % beträgt. Gleichzeitig stattfindende nationale Hauptwahlen und EU-Wahlen führen zu einem offensichtlichen Anstieg der Wahlbeteiligung bei Letzteren. Dies führt innerhalb der EU zu einer deutlichen Verzerrung der Wahlbereitschaft, was die tatsächlichen Intentionen für eine Wahlteilnahme in gewissen Mitgliedsländern überschatten. Da zum Zeitpunkt der Analyse noch nicht alle Daten der einschlägigen Forschungsinstitute zur Verfügung standen, kann von weiterem Forschungspotential in diesem Bereich ausgegangen werden.
description: The election of the European parliament ranks among as one of the most important elections of the whole world. The European people, however, might not realize how important it is so that the turnout of this election is by far lower than the turnouts of the national elections of the member states. If we consider the latest election results this master’s thesis sets the focus on the Second Order Election Theory and its validity after the election of the European Parliament in 2014. Furthermore it will be analysed, why the individual European Parliament election turnover rates of the different member states are so much lower from their retro perspective national election. This is remarkable, especially because the data of the Eurobarometer shows that the reputation of the European Union is far above average. The development of the turnover rates of the national and the European elections have decreased constantly over the last thirty years. However, the difference between the turnout of the European elections and the national elections is on average still above 20 % in favour of the national elections. This leads to a strong bias distortion of the election readiness, which veils the main election intentions of the voters of specific member states. The fact that not all data from the research institutes were available at the time of this study opens a lot of additional research opportunities in the future.
First-principles Study of Physisorption of Nucleic Acid Bases on Small-Diameter Carbon Nanotube
Creators: name: Gowtham, S.
name: Scheicher, Ralph H.
name: Pandey, Ravindra
name: Karna, Shashi P.
name: Ahuja, Rajeev
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the results of our first-principles study based on density functional theory on the interaction of the nucleic acid base molecules adenine (A), cytosine (C), guanine (G), thymine (T), and uracil (U), with a single-walled carbon nanotube (CNT). Specifically, the focus is on the physisorption of base molecules on the outer wall of a (5,0) metallic CNT possessing one of the smallest diameters possible. Compared to CNTs with large diameters, the physisorption energy is found to be reduced in the high-curvature case. The base molecules exhibit significantly different interaction strengths, and the calculated binding energies follow the hierarchy G > A > T > C > U, which appears to be independent of the tube curvature. The stabilizing factor in the interaction between the base molecule and CNT is dominated by the molecular polarizability that allows a weakly attractive dispersion force to be induced between them. The present study provides an improved understanding of the role of the base sequence in deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) on their interactions with carbon nanotubes of varying diameters.
description: 17 pages, 6 figures
Retrospektive Untersuchung des Erregerspektrums bei drohender Frühgeburt und nachgewiesenem Erreger an der Universitätsfrauenklinik Rostock
Creators: name: Voß, Vanessa
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 610 Medical sciences Medicine

description: Die Frühgeburt ist nach wie vor die häufigste Todesursache des Neugeborenen. Eine große Rolle spielen dabei vaginale Infektionen. Als primäres Studienziel dieser Promotionsarbeit erfolgte die Analyse des Erregerspektrums bei drohender Frühgeburt an der Universitätsfrauenklinik Rostock sowie die Beurteilung der Effektivität der antibiotischen Therapie, immer im Vergleich zur Voruntersuchung von Frau Hegewald 2006/2007. Zusätzlich erfolgte die Überprüfung verschiedener Risikofaktoren auf einen statistisch signifikanten Einfluss auf die Frühgeburt bei positivem Vaginalabstrich.
Distinctive signals of boosted dark matter from its semi-annihilation
Creators: name: Toma, Takashi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Dark matter can be boosted by various mechanisms, which may produce characteristic signals that are different from those of canonical dark matter. We show that the semi-annihilation $χχ\to\barχν$ produces signals that are distinctive from those of other semi-annihilation and standard dark matter annihilation processes. Because the boosted dark matter produced by the semi-annihilation process is regarded as a high-energy neutrino, the total flux of the dark matter and the accompanying neutrino produce double peaks in the energy close to the dark matter mass. We show that it will be possible to detect both of the particles produced at the Sun using future large volume neutrino detectors such as those of the Deep Underground Neutrino Experiment and Hyper-Kamiokande.
description: 12 pages, 3 figures, version to appear in Physical Review D
Gradient Flow and Holography from a Local Wilsonian Cutoff
Creators: name: Ellwanger, Ulrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the vacuum partition function of a 4d scalar QFT in a curved background as function of bare marginal and relevant couplings. A local UV cutoff $Λ(x)$ transforming under Weyl rescalings allows to construct Weyl invariant kinetic terms including Wilsonian cutoff functions. The local cutoff can be absorbed completely by a rescaling of the metric and the bare couplings. The vacuum partition function satisfies consistency conditions which follow from the Abelian nature of local redefinitions of the cutoff, and which differ from Weyl rescalings. These imply a gradient flow for beta functions describing the cutoff dependence of rescaled bare couplings. The consistency conditions allow to satisfy all but one Hamiltonian constraints required for a holographic description of the flow of bare couplings with the cutoff.
description: 17 pages, added references and discussions (holographic c-theorem and more)
Comments on anomaly versus WKB/tunneling methods for calculating Unruh radiation
Creators: name: Akhmedova, Valeria
name: Pilling, Terry
name: de Gill, Andrea
name: Singleton, Douglas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this Letter we make a critique of, and comparison between, the anomaly method and WKB/tunneling method for obtaining radiation from non-trivial spacetime backgrounds. We focus on Rindler spacetime (the spacetime of an accelerating observer) and the associated Unruh radiation since this is the prototype of the phenomena of radiation from a spacetime, and it is the simplest model for making clear subtle points in the tunneling and anomaly methods. Our analysis leads to the following conclusions: (i) neither the consistent and covariant anomaly methods gives the correct Unruh temperature for Rindler spacetime and in some cases (e.g. de Sitter spacetime) the consistent and covariant methods disagree with one another; (ii) the tunneling method can be applied in all cases, but it has a previously unnoticed temporal contribution which must be accounted for in order to obtain the correct temperature.
description: 13 pages, 0 figures, revtex4, To be published PLB. Critic of detailed balance dropped and reference added which shows how detailed balance works if one correctly takes into account the temporal piece. Discussion added about temporal contribution giving P_abs=1 condition added showing why "complex integration" constant is not needed
A $\frac 13$ power-law universality class out of stochastic driving in interacting systems
Creators: name: Cai, Zi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this paper, we study the mean-field dynamics of a general class of many-body systems with stochastically fluctuating interactions. Our findings reveal a universal algebraic decay of the order parameter $m(t)\sim t^{-χ}$ with an exponent $χ=\frac 13$ that is independent of most system details including the strength of the stochastic driving, the energy spectrum of the undriven systems, the initial states and even the driving protocols. It is shown that such a dynamical universality class can be understood as a consequence of a diffusive process with a time-dependent diffusion coefficient which is determined self-consistently during the evolution. The finite-size effect, as well as the relevance of our results with current experiments in high-finesse cavity QED systems are also discussed.
description: 6 pages,accepted by Phys. Rev. Letts
New catalogue of intermediate mass Pre-Main Sequence objects in Gaia DR2 using Machine Learning
Creators: name: Vioque, Miguel
name: Oudmaijer, René
name: Baines, Deborah
name: Pérez-Martínez, Ricardo
Publisher: name: Zenodo
Year: 2019
Subjects: Gaia
Herbig Ae/Be
Pre-Main Sequence
Machine Learning
Be stars

description: The intermediate mass Herbig Ae/Be stars are young stars approaching the Main Sequence and are key to understanding the differences in formation mechanisms between magnetic low mass stars and the non-magnetic high mass stars. However; the study of the general properties of these objects is arduous as only around 270 of them are known; with many presenting a doubtful nature.

Gaia Data Release 2 has improved and greatly increased the number of sources with an astrometric solution available. In combination with other catalogues; it constitutes a splendid big data breeding ground for applying Machine Learning techniques and algorithms. We present our plan to discover new Herbig Ae/Be stars by first creating a robust training set from this very reduced set of known objects. Several features were chosen for identifying new objects of the class based on our current knowledge of this group; which normally spotlights in infrared excesses; photometric variabilities and Halpha emission lines. This feature selection was complemented with Principal Component Analysis.

The training set and the final set of features were used to train a Neural Network; which we later used for looking for new Herbig Ae/Be stars and Pre-Main Sequence objects in general among Gaia DR2 sources. Evaluation on test set concludes that we reach a precision over 90% and a recall over 70%; this meaning that we retrieve more than 7000 new Pre-Main Sequence objects spread all over the galactic plane and; as a side effect; over 1000 classical Be stars; with which they share many characteristics. This in turn will allow us to study the Pre-Main Sequence evolution as a function of mass; age and location in the galaxy to an unprecedented precision.
description: {"references": ["Vioque, M., Oudmaijer, R. D., Baines, D., Mendigut\u00eda, I., & P\u00e9rez-Mart\u00ednez, R. 2018, Gaia DR2 study of Herbig Ae/Be stars, A&A, 620, 128"]}
Monitoring the Large Proper Motions of Radio Sources in the Orion BN/KL Region
Creators: name: Gomez, Laura
name: Rodriguez, Luis F.
name: Loinard, Laurent
name: Lizano, Susana
name: Allen, Christine
name: Poveda, Arcadio
name: Menten, Karl M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present absolute astrometry of four radio sources in the Becklin-Neugebauer/Kleinman-Low (BN/KL) region, derived from archival data (taken in 1991, 1995, and 2000) as well as from new observations (taken in 2006). All data consist of 3.6 cm continuum emission and were taken with the Very Large Array in its highest angular resolution A configuration. We confirm the large proper motions of the BN object, the radio source I (GMR I) and the radio counterpart of the infrared source n (Orion-n), with values from 15 to 26 km/s. The three sources are receding from a point between them from where they seem to have been ejected about 500 years ago, probably via the disintegration of a multiple stellar system. We present simulations of very compact stellar groups that provide a plausible dynamical scenario for the observations. The radio source Orion-n appeared as a double in the first three epochs, but as single in 2006. We discuss this morphological change. The fourth source in the region, GMR D, shows no statistically significant proper motions. We also present new, accurate relative astrometry between BN and radio source I that restrict possible dynamical scenarios for the region. During the 2006 observations, the radio source GMR A, located about 1' to the NW of the BN/KL region, exhibited an increase in its flux density of a factor of ~3.5 over a timescale of one hour. This rapid variability at cm wavelengths is similar to that previously found during a flare at millimeter wavelengths that took place in 2003.
description: Accepted for publication in ApJ
Multi-component strongly attractive Fermi gas: a color superconductor in a one-dimensional harmonic trap
Creators: name: Liu, Xia-Ji
name: Hu, Hui
name: Drummond, Peter D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Recent advances in ultra-cold atomic Fermi gases make it possible to achieve a fermionic superfluid with multiple spin components. In this context, any mean-field description is expected to fail, owing to the presence of tightly bound clusters or molecules that consist of more than two particles. Here we present a detailed study of a strongly interacting multi-component Fermi gas in a highly elongated or quasi-one-dimensional harmonic trap, which could be readily obtained in experiment. By using the exact Bethe ansatz solution and a local density approximation treatment of the harmonic trap, we investigate the equation of state of the multi-component Fermi gas in both a homogeneous and trapped environment, as well as the density profiles and low-energy collective modes. The binding energy of multi-component bound clusters is also given. We show that there is a peak in the collective mode frequency at the critical density for a deconfining transition to a many-body state that is analogous to the quark color superconductor state expected in neutron stars.
description: 14 pages, 9 figures
Defect kinetics and dynamics of pattern coarsening in a two-dimensional smectic-A system
Creators: name: Abukhdeir, Nasser Mohieddin
name: Rey, Alejandro D
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Two-dimensional simulations of the coarsening process of the isotropic/smectic-A phase transition are presented using a high-order Landau-de Gennes type free energy model. Defect annihilation laws for smectic disclinations, elementary dislocations, and total dislocation content are determined. The computed evolution of the orientational correlation length and disclination density is found to be in agreement with previous experimental observations showing that disclination interactions dominate the coarsening process. The mechanism of smectic disclination movement, limited by the absorption and emission of elementary dislocations, is found to be facilitated by curvature walls connecting interacting disclinations. At intermediate times in the coarsening process, split-core dislocation formation and interactions displaying an effective disclination quadrupole configuration are observed. This work provides the framework for further understanding of the formation and dynamics of the diverse set of curvature defects observed in smectic liquid crystals and other layered material systems.