cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
XIAO: a soft X-ray telescope for the SVOM Mission
Creators: name: Mereghetti, S.
name: De Luca, A.
name: Fiorini, M.
name: La Palombara, N.
name: Tiengo, A.
name: Uslenghi, M.
name: Vianello, G.
name: Villa, G.
name: Zambra, A.
name: Moretti, A.
name: Basso, S.
name: Campana, S.
name: Conconi, P.
name: Cotroneo, V.
name: Covino, S.
name: Ghirlanda, G.
name: Ghisellini, G.
name: Pareschi, G.
name: Tagliaferri, G.
name: Trifoglio, M.
name: Amati, L.
name: Gianotti, F.
name: Stella, L.
name: Antonelli, A.
name: Cordier, B.
name: Gotz, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The study of Gamma-ray bursts (GRBs) is a key field to expand our understanding of several astrophysical and cosmological phenomena. SVOM is a Chinese-French Mission which will permit to detect and rapidly locate GRBs, in particular those at high redshift, and to study their multiwavelength emission. The SVOM satellite, to be launched in 2013, will carry wide field instruments operating in the X/gamma-ray band and narrow field optical and soft X-ray telescopes. Here we describe a small soft X-ray telescope (XIAO) proposed as an Italian contribution to the SVOM mission. Thanks to a grazing incidence X-ray telescope with effective area of ~120 cm^2 and a short focal length, coupled to a very compact, low noise, fast read out CCD camera, XIAO can substantially contribute to the overall SVOM capabilities for both GRB and non-GRB science.
description: 12 pages, 7 figures; Presented at ``SPIE Astronomical Telescopes and Instrumentation 2008'' - Marseille, June 23-28, 2008
Die landesgeschichtliche Bedeutung der Königsberger Königskrönung von 1701
Creators: name: Bömelburg, Hans-Jürgen
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 4 (2005)
Geometry-dependent two-photon absorption followed by free-carrier absorption in AlGaAs waveguides
Creators: name: Espinosa, Daniel H. G.
name: Harrigan, Stephen R.
name: Awan, Kashif M.
name: Rasekh, Payman
name: Dolgaleva, Ksenia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonlinear absorption can limit the efficiency of nonlinear optical devices. However, it can also be exploited for optical limiting or switching applications. Thus, characterization of nonlinear absorption in photonic devices is imperative. This work used the nonlinear transmittance technique to measure the two-photon absorption coefficients ($α_2$) of AlGaAs waveguides in the strip-loaded, nanowire, and half-core geometries in the wavelength range from $1480$ to $1560~\text{nm}$. The highest $α_2$ values of $2.4$, $2.3$, and $1.1~\text{cm}/\text{GW}$ were measured at $1480~\text{nm}$ for a $0.8$-nm-wide half-core, $0.6$-nm-wide nanowire, and $0.9$-nm-wide strip-loaded waveguides, respectively, with $α_2$ decreasing with increasing wavelength. The free-carrier absorption cross-section was also estimated from the nonlinear transmittance data to be around $2.2\times10^{-16}~\text{cm}^2$ for all three geometries. Our results contribute to a better understanding of the nonlinear absorption in heterostructure waveguides of different cross-sectional geometries. We discuss how the electric field distribution in the different layers of a heterostructure can lead to geometry-dependent effective two-photon absorption coefficients. More specifically, we pinpoint the third-order nonlinear confinement factor as a design parameter to estimate the strength of the effective nonlinear absorption, in addition to tailoring the bandgap energy by varying material composition.
Psychological resilience and aging driver behavior
Creators: name: ST LOUIS, RENEE MARIE
Publisher: name: Monash University
Year: 2021
Subjects: subject: 170102 Developmental Psychology and Ageing
subject: FOS: Psychology
subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: The main objective of this research program was to expand the lens of resilience research to a new application – aging driver behavior – by specifically investigating the relationship that psychological resilience has with driving patterns and behavior of older adults. This was achieved through integration of several data sources across multiple years, including self-reported measures of health and functioning, in-person clinical assessment data, self-reported driving measures, and GPS-derived naturalistic driving data. Results from this research present an innovative approach to understanding driving decisions in later life and add to the scant literature on the influence of psychological variables on driving behavior.
The beliefs of educational administrators about problem formulation
Creators: name: Gill, Averlyn Penelope Pedro
Publisher: name: University of British Columbia
Year: 2010

description: This study developed a scale for use in assessing administrators' beliefs about problem formulation behaviour, examined selected aspects of its construct validity, and used the scale in an exploratory study to assess the problem formulation beliefs of educational administrators. Based on theoretical and empirical studies of problem formulation (Allal, 1973; Getzels and Csikszentmihalyi, 1976) and the theory of Cognitive Orientation (Kreitler and Kreitler, 1972; 1976) a conceptual framework was developed in which four kinds of beliefs could be held about each of four component behaviours of problem formulation. A set of statements which were consistent with this framework was developed. Screening and rating procedures yielded four equivalent sets of statements, one set for each belief domain. With the addition of questions about biodemographic characteristics these formed the instrument which was pilot tested and revised prior to being sent to 317 administrators in 12 Community Colleges and four Provincial Institutes in British Columbia. A 60% (189) return rate yielded the data for the study. Psychometric analyses indicated adequate internal reliabilities for the subtests. Hypotheses were tested by means of correlational analyses and showed that Normative, Goal and Self beliefs about problem formulation were moderately correlated with each other but not with General beliefs. Normative beliefs were positively and more highly correlated with Goal beliefs than with General or Self beliefs. A comparison of the responses of selected respondents (low scorers and high scorers) revealed that high scorers were more consistent than low scorers in the level and configuration of their responses. Training in problem solving was the only biodemographic characteristic found to distinguish significantly between low and high scorers. The results suggest some need for further examination of existing theory: the four belief domains may not be independent but organized in particular ways; computation of a summary "cognitive orientation" score is not well legitimized by the present data. Respondents' ability to recognize four component behaviours of problem formulation is confirmed by the study but their beliefs about the components are not equally consistent. The study concludes with speculations about the usefulness of the scale as a tool in administrative preparation.
Current-voltage characteristic of parallel-plane ionization chamber with inhomogeneous ionization
Creators: name: Stoyanov, Dimitar G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The balances of particles and charges in the volume of parallel-plane ionization chamber are considered. Differential equations describing the distribution of current densities in the chamber volume are obtained. As a result of the differential equations solution an analytical form of the current-voltage characteristic of parallel-plane ionization chamber with inhomogeneous ionization in the volume is got.
description: 8 pages, 4 figures
Elissa Mailänder Koslov, Gewalt im Dienstalltag. Die SS-Aufseherinnen des Konzentrations- und Vernichtungslagers Majdanek 1942-1944
Creators: name: Orth, Karin
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 1 (2010)
Half-integer Shapiro-steps in superconducting qubit with a $π$-Josephson junction
Creators: name: Mori, Michiyasu
name: Maekawa, Sadamichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A superconducting quantum interference device (SQUID) comprising 0- and $π$-Josephson junctions (JJs), called $π$-SQUID, is studied by the resistively shunted junction model. The $π$-SQUID shows half-integer Shapiro-steps (SS) under microwave irradiation at the voltage $V$ = $(\hbar/2e)Ω(n/2)$, with angular frequency $Ω$ and half-integer $n$/2 in addition to integer $n$. We show that the $π$-SQUID can be a $π$-qubit with spontaneous loop currents by which the half-integer SS are induced. Making the 0- and $π$-JJs equivalent is a key for the half-integer SS and realizing the $π$-qubit.
description: 4 pages, 6figures
Synthetic training data generation for deep learning based quality inspection
Creators: name: Gutierrez, Pierre
name: Luschkova, Maria
name: Cordier, Antoine
name: Shukor, Mustafa
name: Schappert, Mona
name: Dahmen, Tim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.10; I.3.3; I.4.1; I.4.6; I.4.8; I.4.9; I.5

description: Deep learning is now the gold standard in computer vision-based quality inspection systems. In order to detect defects, supervised learning is often utilized, but necessitates a large amount of annotated images, which can be costly: collecting, cleaning, and annotating the data is tedious and limits the speed at which a system can be deployed as everything the system must detect needs to be observed first. This can impede the inspection of rare defects, since very few samples can be collected by the manufacturer. In this work, we focus on simulations to solve this issue. We first present a generic simulation pipeline to render images of defective or healthy (non defective) parts. As metallic parts can be highly textured with small defects like holes, we design a texture scanning and generation method. We assess the quality of the generated images by training deep learning networks and by testing them on real data from a manufacturer. We demonstrate that we can achieve encouraging results on real defect detection using purely simulated data. Additionally, we are able to improve global performances by concatenating simulated and real data, showing that simulations can complement real images to boost performances. Lastly, using domain adaptation techniques helps improving slightly our final results.
description: 8 pages, 4 figures, to be published in QCAV 2021 conference, proceedings will by published by SPIE
Non-universal dependence of spatiotemporal regularity on randomness in coupling connections
Creators: name: Jabeen, Zahera
name: Sinha, Sudeshna
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate the spatiotemporal dynamics of a network of coupled nonlinear oscillators, modeled by sine circle maps, with varying degrees of randomness in coupling connections. We show that the change in the basin of attraction of the spatiotemporal fixed point due to varying fraction of random links $p$, is crucially related to the nature of the local dynamics. Even the qualitative dependence of spatiotemporal regularity on $p$ changes drastically as the angular frequency of the oscillators change, ranging from monotonic increase or monotonic decrease, to non-monotonic variation. Thus it is evident here that the influence of random coupling connections on spatiotemporal order is highly non-universal, and depends very strongly on the nodal dynamics.
description: 9 pages, 4 figures
Measurement of Deeply Virtual Compton Scattering and its t-dependence at HERA
Creators: name: H1 Collaboration
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of elastic deeply virtual Compton scattering gamma* p -> gamma p using e-p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb^-1. The cross section is measured as a function of the virtuality Q^2 of the exchanged photon and the centre-of-mass energy W of the gamma*p system in the kinematic domain 6.5 < Q^2 < 80 GeV^2, 30 < W < 140 GeV and |t| < 1 GeV^2, where t denotes the squared momentum transfer at the proton vertex. The cross section is determined differentially in t for different Q^2 and W values and exponential t-slope parameters are derived. The measurements are compared to a NLO QCD calculation based on generalised parton distributions. In the context of the dipole approach, the geometric scaling property of the DVCS cross section is studied for different values of t.
description: 21 pages, 6 figures
Proper Plasma Analysis Practice (PPAP), an Integrated Procedure of the Extinction Correction and Plasma Diagnostics: a Demo with an HST/WFC3 Image Set of NGC6720
Creators: name: Ueta, Toshiya
name: Otsuka, Masaaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work, we propose a proper plasma analysis practice (PPAP), an updated procedure of plasma diagnostics in the era of spatially-resolved spectroscopy. In particular, we emphasize the importance of performing both of the extinction correction and the direct method of plasma diagnostics simultaneously as an integrated process. This approach is motivated by the reciprocal dependence between critical parameters in these analyses, which can be resolved by iteratively seeking a converged solution. The use of PPAP allows us to eliminate unnecessary assumptions that prevent us from obtaining an exact solution at each element of the spectral imaging data. Using a suite of HST/WFC3 narrowband images of the planetary nebula, NGC 6720, we validate PPAP by (1) simultaneously and self-consistently deriving the extinction, c(Hb), and electron density/temperature distribution, (n_e, T_e), maps that are consistent with each other, and (2) obtaining identical metal abundance distribution maps, (n(N^+)/n(H^+), n(S^+)/n(H^+)), from multiple emission line maps at different wavelengths/transition energies. We also determine that the derived c(Hb) consists both of the ISM and circumsource components and that the ionized gas-to-dust mass ratio in the main ring is at least 437 and as high as about 1600. We find that, unless we deliberately seek self-consistency, uncertainties at tens of per cent can easily arise in outcomes, making it impossible to discern actual spatial variations that occurs at the same level, defeating the purpose of conducting spatially resolved spectroscopic observations.
description: 27 pages, 18 figures, to be published as a Tutorial in the Publication of the Astronomical Society of the Pacific
Study of interactions of adult learners with learning situations
Creators: name: Shores, W. Louise
Publisher: name: University of British Columbia
Year: 2010

description: This exploratory study sought understanding of how adult learners and learning situations interact and how those interactions might be explained. With a constructivist, interactionist theoretical base, and interpretive, qualitative research methodology, the study was conducted in two parts involving different data sources -- field study and metaanalysis of prior research. 1. Observation of learning situations and interviews of participants were used to seek understanding of adult learner experience in its own terms. Analysis included comparison of multiple learners from the same observed situation, and of individual learners across situations. Elements of learners' experiences were found to include past experience, prior knowledge, purpose, attention level, emotional response, and perceptions. 2. With prior research as data, an interpretive metaanalysis was done to determine the evolving state of theory and findings in the field related to adult learners, situations, and their interactions. Sources of studies which were included in the sample were Adult Education Quarterly, 1979-1984, citations of those studies (ancestry), Social Sciences Citation Index (descendency), and Dissertation Abstracts International, 1979-1984. Characteristics of the learner analyzed in clusters of related studies included: (a) ego development, (b) autonomy, (c) adult cognition, (d) learning styles, (e) cognitive style, (f) age and academic ability, (g) developmental tasks, and (h) relevance and curiosity. Clusters of studies on learning situations were related to (a) Telecourse, (b) Lecture, and (c) educational orientation of teachers. Interaction between learners and situations were identified in clusters of studies on (a) learner participation in planning, (b) learner perception of teacher behavior, and (c) interaction between content organizers and prior knowledge. The Person Situation Process Model (Nystedt) was used as a consistent organizing framework for data in both parts of the study to enable integrative analysis of the two perspectives. The study was designed and conducted to provide a base for theory development and empirical research on adult learner/situation interaction. The present state of theory and research on this phenomenon was found to be rudimentary. Cumulative findings, theoretical foundations, and dialogue between proponents of competing theories were absent or rare. Conclusions from the integrative analysis of field study and research review data included: (1) that learner perceptions, and momentary states such as attention level and emotional responses, are important elements in the learner's experience and have received almost no attention in prior research, and (2) that individual adult learners exhibit unique combinations of characteristics, such as prior knowledge, past experience, and purpose, which are related to the ways they experience learning situations and which help to explain idiosyncratic responses.
Interaction of massless minimally coupled scalar field with spinor field in de Sitter universe
Creators: name: Ahmadi, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: J.2
subject: 81T20

description: The interaction of massless minimally coupled scalar field and spinor field $ \left( Ψ+ Φ_m \rightarrow Ψ+ Φ_m \right) $ is investigated and the behavior of interaction and scattering matrix in Minkowski limit is studied. It is seen that the massless minimally coupled scalar field operator, the interaction Lagrangian and the scattering matrix become zero. Also the incoming and outgoing spinor fields, which in de Sitter space-time are different and are interacted with massless minimally coupled scalar field, in null curvature limit are the same and no interaction seen. In other word, the massless minimally coupled scalar field is dependent on curvature and can be considered as a part of a gravitational field.
description: 7 pages, 1 figure
Ramification estimates for the hyperbolic Gauss map
Creators: name: Kawakami, Yu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53A10 (Primary); 30D35, 53A35, 53C42 (Secondary)

description: We give the best possible upper bound on the number of exceptional values and the totally ramified value number of the hyperbolic Gauss map for pseudo-algebraic constant mean curvature one surfaces in the hyperbolic three-space and some partial results on the Osserman problem for algebraic case. Moreover, we study the value distribution of the hyperbolic Gauss map for complete constant mean curvature one faces in de Sitter three-space.
description: 16 pages, corrected some typos. OCAMI Preprint Series 08-1, to appear in Osaka Journal of Mathematics
Zur Frage einer polnischen Nationalkultur. Polen in Europa: Vergangenheit, Gegenwart, Zukunft.
Creators: name: Schlott, Wolfgang
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 3 (2003)
Wioletta Knütel, Verlorene Heimat als literarische Provinz. Stolp und seine pommersche Umgebung in der deutschen Literatur nach 1945
Creators: name: Mehnert, Elke
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 1 (2004)
The Eradication of Schizophrenia in Western Lapland by Ridiculusmus - Playlist of Production Clips
Creators: name: Talbot, Richard James
Publisher: name: University of Salford
Year: 2020
Subjects: classificationCode: 360403
subject: Drama, theatre and performance studies

description: A Youtube Video playlist on The New Adelphi Theatre Site to accompany the Directors' Commentaries on Ridiculusmus’ landmark play The Eradication of Schizophrenia in Western Lapland, presented as the Ridiculusmus Virtual Trilogy, University of Salford Online, May 2020. Curated by Richard Talbot
Dialogue As The Embodiment of Love is a personal experience of the trilogy of socially engaged work by one of Britain’s flagship comedy theatre companies, Ridiculusmus, including specially curated screenings, expert talks and an opportunity for discussion. Ridiculusmus offer an insight into their research with academics in clinical psychology, and into their creative process. This trilogy looks and listens closely to the most widespread mental health conditions of our age (psychosis, PTSD and insurmountable bereavement) and offers ways in which we respond to and work with people processing traumatic experiences.
Clips are numbered according to the order played in this Seminar on The Eradication of Schizophrenia in Western Lapland
The Directors' commentaries can be found at:Talbot. Vimeo Page. Ridiculusmus Virtual Trilogy 'Dialogue As The Embodiment of Love' Session 1 The Eradication of Schizophrenia in Western Lapland https://vimeo.com/428126736/c75509e82fAccessed 14 December 2020
Infrared Excesses around Bright White Dwarfs from Gaia and unWISE. II
Creators: name: Lai, Samuel
name: Dennihy, Erik
name: Xu, Siyi
name: Nitta, Atsuko
name: Kleinman, Scot
name: Leggett, S. K.
name: Bonsor, Amy
name: Hodgkin, Simon
name: Rebassa-Mansergas, Alberto
name: Rogers, Laura K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Infrared excesses around white dwarf stars indicate the presence of various astrophysical objects of interest, including companions and debris disks. In this second paper of a series, we present follow-up observations of infrared excess candidates from Gaia and unWISE discussed in the first paper, Paper I. We report space-based infrared photometry at 3.6 and 4.5 micron for 174 white dwarfs from the Spitzer Space Telescope and ground-based near-infrared J, H, and K photometry of 235 white dwarfs from Gemini Observatory with significant overlap between Spitzer and Gemini observations. This data is used to confirm or rule-out the observed unWISE infrared excess. From the unWISE-selected candidate sample, the most promising infrared excess sample comes from both colour and flux excess, which has a Spitzer confirmation rate of 95%. We also discuss a method to distinguish infrared excess caused by stellar or sub-stellar companions from potential dust disks. In total, we confirm the infrared excess around 62 white dwarfs, 10 of which are likely to be stellar companions. The remaining 52 bright white dwarf with infrared excess beyond two microns has the potential to double the known sample of white dwarfs with dusty exoplanetary debris disks. Follow-up high-resolution spectroscopic studies of a fraction of confirmed excess white dwarfs in this sample have discovered emission from gaseous dust disks. Additional investigations will be able to expand the parameter space from which dust disks around white dwarfs are found.
description: 23 pages, 8 figures, 8 tables, 3 of the tables are available digitally, and 329 SEDs are available as digital content
Jeanne Dingell, Zur Tätigkeit der Haupttreuhandstelle Ost, Treuhandstelle Posen 1939 bis 1945
Creators: name: Białkowski, Błażej
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 4 (2005)
An analysis of concepts of marginality in adult education
Creators: name: Parrish, MarDell C.
Publisher: name: University of British Columbia
Year: 2010

description: Concepts of marginality have found popular use in the field of adult education. Unfortunately indiscriminate usage of the term marginality has left too much latitude for misapplication, misinterpretation and misunderstanding. Clark was first to use the term, marginality, to denote a particular concept in the field. In his doctoral organizational case study, "Adult Education in Transition: A Study of Institutional Insecurity," University of California--Los Angeles, 1956, Clark identified a transition by the Adult Education Branch of the Los Angeles School System from a state of existence wherein traditional educational values prevailed to a state wherein the adult education schools had assumed a service orientation subservient to community demands. Clark's initial concept of marginality was developed to denote the final status of the Branch resulting from this transition. His subsequent uses of the term departed from denoting the status of an adult education subunit in relation to other subunits within a common parental educational school system to include other organizational and non-organizational applications. Clark was inconsistent in applying the term marginality and strayed from its application in his doctoral case-study-in-depth to describe the status of the Adult Education Branch of the Los Angeles School System. He also used marginality to denote the status of various other adult education subunits, including that of adult education administrative agencies, classes, departments, enterprises, schools, school programs, programs in general, a bureau, and professional administrators' society. Additionally, concepts of marginality were used by Clark in his dissertation to describe the low status of adult education administrators, functions, activities, programs, and a subunit organizational position. This thesis links Clark's initial concept to dictionary definitions, discusses problems in assessing and validating marginality within organizational contexts, establishes a typology for classification of usages within the literature, and pursues concept clarification and differentiation. Definitions are stated for (1) values marginality, (2) practice marginality, (3) autonomous extra-organizational marginality, (4) autonomous organizational marginality, (5) intra-organizational marginality, (6) human system marginality, (7) administrator system marginality, (8) client system marginality, (9) organizational system marginality, (10) organizational microsystem marginality, (11) organizational macro-system marginality, (12) organizational multiple subunit micro-system marginality, (13) organizational multiple subunit macro-system marginality, and (14) for the generic label applicable to organizational system marginality concepts--inter-system marginality. Suggestions for future research are also presented.
N=4 supersymmetric Yang Mills scattering amplitudes at high energies: the Regge cut contribution
Creators: name: Bartels, J.
name: Lipatov, L. N.
name: Vera, A. Sabio
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We further investigate, in the planar limit of N=4 supersymmetric Yang Mills theories,the high energy Regge behavior of six-point MHV scattering amplitudes. In particular, for the new Regge cut contribution found in our previous paper, we compute in the leading logarithmic approximation (LLA) the energy spectrum of the BFKL equation in the color octet channel, and we calculate explicitly the two loop corrections to the discontinuities of the amplitudes for the transitions 2 to 4 and 3 to 3. We find an explicit solution of the BFKL equation for the octet channel for arbitrary momentum transfers and investigate the intercepts of the Regge singularities in this channel. As an important result we find that the universal collinear and infrared singularities of the BDS formula are not affected by this Regge-cut contribution. Any improvement of the BDS formula should reproduce this cut to all orders in the coupling.
Andreas Kappeler, Rußland als Vielvölkerreich. Entstehung, Geschichte, Zerfall.
Creators: name: Tuchtenhagen, Ralph
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 1 (2003)
ผลการเรียนจากการสอนบนเว็บไซต์ตามแนวการสร้างสรรค์ความรู้ด้วยตนเองเรื่อง เทคโนโลยีสารสนเทศ กลุ่มสาระการงานอาชีพและเทคโนโลยีชั้นมัธยมศึกษาปีที่ 2 ระหว่างการเรียนเป็นรายบุคคลกับการเรียนเป็นกลุ่มย่อย
Creators: name: ทองนาค โพธิจักร
name: สาคร อัฒจักร
name: สานิตย์ กายาผาด
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2008
Subjects: การสอนบนเว็บไซต์, เทคโนโลยีสารสนเทศ, มัธยมศึกษาปีที่ 2, รายบุคคล, กลุ่มย่อย

description: 1, 2, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Standard Model prediction of the $B_c$ lifetime
Creators: name: Aebischer, Jason
name: Grinstein, Benjamín
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Applying an operator product expansion approach we update the Standard Model prediction of the $B_c$ lifetime from over 20 years ago. The non-perturbative velocity expansion is carried out up to third order in the relative velocity of the heavy quarks. The scheme dependence is studied using three different mass schemes for the $\bar b$ and $c$ quarks, resulting in three different values consistent with each other and with experiment. Special focus has been laid on renormalon cancellation in the computation. Uncertainties resulting from scale dependence, neglecting the strange quark mass, non-perturbative matrix elements and parametric uncertainties are discussed in detail. The resulting uncertainties are still rather large compared to the experimental ones, and therefore do not allow for clear-cut conclusions concerning New Physics effects in the $B_c$ decay.
description: 42 pages, 1 figure
A revisit to agglomerates of early-type Hipparcos stars
Creators: name: Caballero, J. A.
name: Dinis, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the spatial structure and sub-structure of regions rich in Hipparcos stars with blue B_T-V_T colours. These regions, which comprise large stellar complexes, OB associations, and young open clusters, are tracers of on-going star formation in the Galaxy. The DBSCAN (Density-Based Spatial Clustering of Applications with Noise) data clustering algorithm is used to look for spatial overdensities of early-type stars. Once an overdensity, "agglomerate", is identified, we carry out a data and bibliographic compilation of their star member candidates. The actual membership in agglomerate of each early-type star is studied based on its heliocentric distance, proper motion, and previous spectro-photometric information. We identify 35 agglomerates of early-type Hipparcos stars. Most of them are associated to previously known clusters and OB associations. The previously unknown P Puppis agglomerate is subject of a dedicated study with Virtual Observatory tools. It is actually a new, nearby, young open cluster (d ~ 470 pc, age ~ 20 Ma) with a clear radial density gradient. We list P Puppis and other six agglomerates (including NGC 2451 A, vdBH 23, and Trumpler 10) as new sites for substellar searches because of their youth, closeness, and spatial density. We investigate in detail the sub-structure in the Orion, CMa-Pup and Pup-Vel OB complexes ("super-agglomerates"). We confirm or discover some stellar overdensities in the Orion complex, like the 25 Ori group, the Horsehead region (including the sigma Orionis cluster), and the eta Orionis agglomerate. Finally, we derive accurate parallactic distances to the Pleiades, NGC 2451 A, and IC 2391, describe several field early-type stars at d < 200 pc, and discuss the incompleteness of our search.
description: Accepted for publication in Astronomische Nachrichten
Zur Ikonographie des Heimwehs. Erinnerungskultur der Heimatvertriebenen. Referate der Tagung des Johannes-Künzig-Instituts für ostdeutsche Volkskunde, 4. bis 6. Juli 2001
Creators: name: Mehnert, Elke
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 1 (2004)
Electric and Magnetic Responses of Two-dimensional Dirac Electrons in Organic Conductor $α$-(BETS)$_2$I$_3$
Creators: name: Suzumura, Yoshikazu
name: Tsumuraya, Takao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Effect of spin-orbit coupling (SOC) on Dirac electrons in the organic conductor $α$-(BETS)$_2$I$_3$ [BETS = bis(ethylenedithio)tetraselenafulvalene] has been examined by calculating electric conductivity and spin magnetic susceptibility. A tight-binding (TB) model with real and imaginary transfer energies is derived using first-principles density-functional theory method. The conductivity without the SOC depends on both anisotropies of the velocity of the Dirac cone and the tiling of the cone. Such conductivity is suppressed by the SOC, which gives rise to the imaginary part of the transfer energy. Due to the SOC, we find at low temperatures that the reduction of the conductivity becomes large and that the anisotropy of the conductivity is reduced. A nearly constant conductivity at high temperatures is obtained by an electron--phonon (e--p) scattering. Further, the property of the Dirac cone is examined for the spin susceptibility, which is mainly determined by the density of states (DOS). The result is compared with the case of the organic conductor $α$-(BEDT-TTF)$_2$I$_3$ [BEDT-TTF=bis(ethylenedithio)tetrathiafulvalene], which provides the Dirac cone without the SOC. The relevance to experiments is discussed.
description: arXiv admin note: text overlap with arXiv:2009.14594
Bernhard Rosenkötter, Treuhandpolitik. Die "Haupttreuhandstelle Ost" und der Raub polnischer Vermögen 1939-1945
Creators: name: Białkowski, Błażej
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 4 (2005)
Projected entangled pair states study of anisotropic-exchange magnets on triangular lattice
Creators: name: Zhang, Meng
name: Wang, Chao
name: Dong, Shaojun
name: Zhang, Hao
name: Han, Yongjian
name: He, Lixin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The anisotropic-exchange spin-1/2 model on a triangular lattice has been used to describe the rare-earth chalcogenides, which may have exotic ground states. We investigate the quantum phase diagram of the model by using the projected entangled pair state (PEPS) method, and compare it to the classical phase diagram. Besides two stripe-ordered phase, and the 120$^\circ$ state, there is also a multi-\textbf{Q} phase. We identify the multi-\textbf{Q} phase as a $Z_{2}$ vortex state. No quantum spin liquid state is found in the phase diagram, contrary to the previous DMRG calculations.
Atomic noise spectra in nonlinear magneto-optical rotation in a rubidium vapor
Creators: name: Li, Hebin
name: Sautenkov, Vladimir A.
name: Varzhapetyan, Tigran S.
name: Rostovtsev, Yuri V.
name: Scully, Marlan O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have studied the noise spectra in a nonlinear magneto-optical rotation experiment in a rubidium vapor. We observed the reduction of noise in the intensity difference of two orthogonally polarized components of the laser beam. The dependence of the noise level on both the frequency and the longitudinal magnetic field has been studied. We found that the optimal condition for the noise reduction is to work around zero longitudinal magnetic field, where the intensity correlation between the two orthogonally polarized components is maximum. Our results can be used to reduce or eliminate the atomic excess noise, therefore improving the sensitivity of nonlinear magneto-optical rotation magnetometers and other atom-optical based applications.
description: 5 pages, 5 figures
Markus Roth, Herrenmenschen. Die deutschen Kreishauptleute im besetzten Polen. Karrierewege, Herrschaftspraxis und Nachgeschichte
Creators: name: Lehr, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 1 (2010)
Reconstructing WIMP properties with neutrino detectors
Creators: name: Mena, Olga
name: Palomares-Ruiz, Sergio
name: Pascoli, Silvia
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: If the dark matter of the Universe is constituted by weakly interacting massive particles (WIMP), they would accumulate in the core of astrophysical objects as the Sun and annihilate into particles of the Standard Model. High-energy neutrinos would be produced in the annihilations, both directly and via the subsequent decay of leptons, quarks and bosons. While Cherenkov neutrino detectors/telescopes can only count the number of neutrinos above some threshold energy, we study how, by exploiting their energy resolution, large magnetized iron calorimeter and, possibly, liquid argon and totally active scintillator detectors, planned for future long baseline neutrino experiments, have the capability of reconstructing the neutrino spectrum and might provide information on the dark matter properties. In particular, for a given value of the WIMP mass, we show that a future iron calorimeter could break the degeneracy between the WIMP-proton cross section and the annihilation branching ratios, present for Cherenkov detectors, and constrain their values with good accuracy.
description: 4 pp, 2 figs; revised version accepted for publication with further discussions and references
Jordanthribus planifacietus Zimmerman, B. P. Bishop Mus.
Creators: name: Zimmerman, Elwood C.
Publisher: name: Zenodo
Year: 1942
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Anthribidae
Jordanthribus
Jordanthribus planifacietus

description: 1.Jordanthribus planifacietus Zimmerman, B. P. Bishop Mus., 0cc. Papers 14 (13): 237, figured, 1938 (fig. 1, a, b; pl. 1, B). This species is smaller and conspicuously paler in color than is J. conspersus. The more salient differences are summed up in the synoptic table, and a detailed description is given in the paper cited above. Length, 1.75-2.25; breadth, 0.8-1.0mm. Seven specimens representing both sexes of this peculiar species were collected at Machanao by Usinger, June 5, 1936; five of them were from dead leaves of a fallen tree, the other two were beaten from dried leaves of fallen branches; 22 specimens from the National Museum were found by Oakley on Pandanus leaves, Dec. 30, 1938, no. 38-9035. In southeastern Polynesia I found this species on dead banana leaves and coconut fronds and swept it from low herbage. Its widespread distribution indicates that the species has been artificially spread by commerce.
description: Published as part of Zimmerman, Elwood C., 1942, Anthribidae Of Guam, pp. 65-72 in Insects of Guam I, Honolulu, Hawaii :Bernice P. Bishop Museum on pages 66-67, DOI: 10.5281/zenodo.5159835
A Comment on "Optimal Stroke Patterns for Purcell's Three-Link Swimmer"
Creators: name: Raz, O.
name: Avron, J. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: For large enough aspect ratio, we find better stroke patterns then the patterns proposed by D. Tam and A.P.Hosoi in their letter to PRL "Optimal Stroke Patterns for Purcell's Three-Link Swimmer".
description: 3 page, 1 figure
Nonexistence of supersymmetry breaking counterexamples to the Nelson-Seiberg theorem
Creators: name: Li, Zhenhuan
name: Sun, Zheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Counterexample models to the Nelson-Seiberg theorem have been discovered, and their features have been studied in previous literature. All currently known counterexamples have generic superpotentials respecting the R-symmetry, and more R-charge 2 fields than R-charge 0 fields. But they give supersymmetric vacua with spontaneous R-symmetry breaking, thus violate both the Nelson-Seiberg theorem and its revisions. This work proves that the other type of counterexamples do not exist. When there is no R-symmetry, or there are no more R-charge 2 fields than R-charge 0 fields in models with R-symmetries, generic superpotentials always give supersymmetric vacua. There exists no specific arrangement of R-charges or non-R symmetry representations which makes a counterexample with a supersymmetry breaking vacuum. This nonexistence theorem contributes to a refined classification of R-symmetric Wess-Zumino models.
description: 9 pages; v2: typos, JHEP pre-publication version
Single-qubit remote manipulation by magnetic solitons
Creators: name: Cuccoli, Alessandro
name: Nuzzi, Davide
name: Vaia, Ruggero
name: Verrucchi, Paola
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic solitons can constitute a means for manipulating qubits from a distance. This would overcome the necessity of directly applying selective magnetic fields, which is unfeasible in the case of a matrix of qubits embedded in a solid-state quantum device. If the latter contained one-dimensional Heisenberg spin chains coupled to each qubit, one can originate a soliton in a selected chain by applying a time-dependent field at one end of it, far from the qubits. The generation of realistic solitons has been simulated. When a suitable soliton passes by, the coupled qubit undergoes nontrivial operations, even in the presence of moderate thermal noise.
description: 6 pages, 5 figures
Rhetoric in British Columbia : an analysis of its influence upon adult education and women
Creators: name: Chambers, Carmel M.
Publisher: name: University of British Columbia
Year: 2010

description: The topic under consideration is the rhetoric of British Columbia's political leaders and their strategic use of language whereby the government maintains its position of power and authority, implements its own ideological priorities, even if unpopular, and deprives the opposition of its ability to effectively mount a counter strategy. Aspects of political philosophies, human nature, scientific knowledge, education, and alternate feminist political philosophical views are presented. Brief sketches of Constitutionalism, The Rule of Law and ideological bases of modern political systems, liberalism and socialism, are considered in the context of a political spectrum that spans communism to fascism. An analytical framework adapted from the classical rhetoric of Aristotle and the new rhetoric of Kenneth Burke is used to examine the rhetoric and actions of the political leaders of British Columbia. Findings indicate that the strategies employed are effective and persuasive to the dominant majority of the populace. Components of strategy are identified which are deemed necessary in order that a democratically elected government may pursue successfully, a revolutionary political ideological change in its philosophy. Priorities and areas of social concern are identified in terms of their esteem for the present government leaders. The market principle and technology are the sacred cows. Education of a liberal kind, women, the welfare state, are a sow's ear. One recommendation is that adult education unite with movements that espouse and practice like philosophies so that it is strengthened and rejuvenated in its mandate and not precipitated to bend to the prevailing political ideology.
The influence of the secular perturbation of an intermediate-mass companion: II. Ejection of hypervelocity stars from the Galactic Center
Creators: name: Zheng, Xiaochen
name: Lin, Douglas N. C.
name: Mao, Shude
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: There is a population of stars with velocities in excess of 500 km s$^{-1}$ relative to the Galactic center. Many, perhaps most, of these hyper-velocity stars (HVSs) are B stars, similar to the disk and S stars in a nuclear cluster around a super-massive black hole (SMBH) near $\rm Sgr~A^{\star}$. In the paper I of this series, we showed that the eccentricity of the stars emerged from a hypothetical disk around the SMBH can be rapidly excited by the secular perturbation of its intermediate-mass companion (IMC), and we suggested IRS 13E as a potential candidate for the IMC. Here, we show that this process leads to an influx of stars on parabolic orbits to the proximity of $\rm Sgr~A^{\star}$ on a secular timescale of a few Myr. This timescale is much shorter than the diffusion timescale into the lost cone through either the classical or the resonant relaxation. Precession of the highly-eccentric stars' longitude of periastron, relative to that of the IMC, brings them to its proximity within a few Myr. The IMC's gravitational perturbation scatters a fraction of the stars from nearly parabolic to hyperbolic orbits, with respect to the SMBH. Their follow-up close encounters with the SMBH induce them to escape with hyper-velocity. This scenario is a variant of the hypothesis proposed by Hills based on the anticipated breakup of some progenitor binary stars in the proximity of the SMBH, and its main objective is to account for the limited lifespan of the known HVSs. We generalize our previous numerical simulations of this process with a much wider range of orbital configurations. We demonstrate the robustness and evaluate the efficiency of this channel of HVS formation. From these numerical simulations, we infer observable kinematic properties for the HVSs.
description: 17 pages, 10 figures, to be published in ApJ