cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remarks on Diffractive Dissociation within JIMWLK Evolution at NLO
Creators: name: Lublinsky, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the high energy diffractive dissociation in DIS at the Next to Leading Order. In the large $N_c$ dipole limit we derive the NLO version of the Kovchegov-Levin equation. We argue that the original structure of the equation is preserved, that is it coincides with the Balitsky-Kovchegov equation at NLO.
description: 5 pages, a ref added. To appear in PLB
The Pristine survey -- XVI. The metallicity of 26 stellar streams around the Milky Way detected with the STREAMFINDER in Gaia EDR3
Creators: name: Martin, Nicolas F.
name: Ibata, Rodrigo A.
name: Starkenburg, Else
name: Yuan, Zhen
name: Malhan, Khyati
name: Bellazzini, Michele
name: Viswanathan, Akshara
name: Aguado, David
name: Arentsen, Anke
name: Bonifacio, Piercarlo
name: Carlberg, Ray
name: Hernández, Jonay I. González
name: Hill, Vanessa
name: Jablonka, Pascale
name: Kordopatis, Georges
name: Lardo, Carmela
name: McConnachie, Alan W.
name: Navarro, Julio
name: Sánchez-Janssen, Rubén
name: Sestito, Federico
name: Thomas, Guillaume F.
name: Venn, Kim A.
name: Vitali, Sara
name: Voggel, Karina T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the photometric metallicities provided by the panoramic Pristine survey to study the veracity and derive the metallicities of the numerous stellar streams found by the application of the STREAMFINDER algorithm to the Gaia EDR3 data. All 26 streams present in Pristine show a clear metallicity distribution function, which provides an independent check of the reality of these structures, supporting the reliability of STREAMFINDER in finding streams and the power of Pristine to measure precise metallicities. We further present 6 candidate structures with coherent phase-space and metallicity signals that are very likely streams. The majority of studied streams are very metal-poor (14 structures with [Fe/H]<-2.0) and include 3 systems with [Fe/H]<-2.9 (C-11, C-19, and C-20). These streams could be the closest debris of low-luminosity dwarf galaxies or may have originated from globular clusters of significantly lower metallicity than any known current Milky Way globular cluster. Our study shows that the promise of the Gaia data for Galactic Archeology studies can be substantially strengthened by quality photometric metallicities, allowing us to peer back into the earliest epochs of the formation of our Galaxy and its stellar halo constituents.
description: 25 pages, 29 figures, accepted for publication in MNRAS. Updated version has only minor changes compared to initial submission. The metallicity of most streams have marginally changed in the updated version
The structure of $^{36}$Ca under the Coulomb magnifying glass
Creators: name: Lalanne, L.
name: Sorlin, O.
name: Poves, A.
name: Assié, M.
name: Hammache, F.
name: Koyama, S.
name: Flavigny, F.
name: Girard-Alcindor, V.
name: Lemasson, A.
name: Matta, A.
name: Roger, T.
name: Beaumel, D.
name: Blumenfeld, Y
name: Brown, B. A.
name: Santos, F. De Oliveira
name: Delaunay, F.
name: de Séréville, N.
name: Franchoo, S.
name: Gibelin, J.
name: Guillot, J.
name: Kamalou, O.
name: Kitamura, N.
name: Lapoux, V.
name: Mauss, B.
name: Morfouace, P.
name: Niikura, M.
name: Pancin, J.
name: Saito, T. Y.
name: Suzuki, D.
name: Stodel, C.
name: Thomas, J-C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Detailed spectroscopy of the neutron-deficient nucleus $^{36}$Ca was obtained up to 9 MeV using the $^{37}$Ca($p$,$d$)$^{36}$Ca and the $^{38}$Ca($p$,$t$)$^{36}$Ca transfer reactions. The radioactive nuclei, produced by the LISE spectrometer at GANIL, interacted with the protons of the liquid Hydrogen target CRYPTA, to produce light ejectiles (the deuteron $d$ or triton $t$) that were detected in the MUST2 detector array, in coincidence with the heavy residues %identified by a zero degree detection system. %States have been measured up to 9 MeV. Our main findings are: i) a similar shift in energy for the 1$^+_1$ and 2$^+_1$ states by about -250 keV, as compared to the mirror nucleus $^{36}$S, ii) the discovery of an intruder 0$^+_2$ state at 2.83(13) MeV, which appears below the first 2$^+$ state, in contradiction with the situation in $^{36}$S, and iii) a tentative 0$^+_3$ state at 4.83(17) MeV, proposed to exhibit a bubble structure with two neutron vacancies in the 2s$_{1/2}$ orbit. The inversion between the 0$^+_2$ and 2$^+_1$ states is due to the large mirror energy difference (MED) of -516(130) keV for the former. This feature is reproduced by Shell Model (SM) calculations, using the $sd$-$pf$ valence space, predicting an almost pure intruder nature for the 0$^+_2$ state, with two protons (neutrons) being excited across the $Z$=20 magic closure in $^{36}$Ca ($^{36}$S). This mirror system has the largest MEDs ever observed, if one excludes the few cases induced by the effect of the continuum.
description: Paper of 5 pages, 3 figures. Contains also a supplementary material of 3 pages and 4 figures
Agroforestry as a potential tool to mitigate climate change
Creators: name: Santiago-Freijanes, J.J.
name: Rigueiro-Rodriguez, A.
name: Aldrey, J.A.
name: N., Ferreiro-Domínguez
Publisher: name: Zenodo
Year: 2018
Subjects: agroforestry
climate change

description: In 2014, FAO suggested five principles to guide strategic global development to provide 'a basis for developing national policies, strategies, programs, regulations and incentives that will guide the transition to an agriculture that is highly productive, economically viable, environmentally sound, and which is based on the principles of equity and social justice'. The first principle can be related to Agroforestry (AF). This paper aims to describe the main reasons linking AF and ecointensification.
A preliminary study of Croatian Language Syllable Networks
Creators: name: Ban, Kristina
name: Ivakić, Ivan
name: Meštrović, Ana
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper presents preliminary results of Croatian syllable networks analysis. Syllable network is a network in which nodes are syllables and links between them are constructed according to their connections within words. In this paper we analyze networks of syllables generated from texts collected from the Croatian Wikipedia and Blogs. As a main tool we use complex network analysis methods which provide mechanisms that can reveal new patterns in a language structure. We aim to show that syllable networks have much higher clustering coefficient in comparison to Erdös-Renyi random networks. The results indicate that Croatian syllable networks exhibit certain properties of a small world networks. Furthermore, we compared Croatian syllable networks with Portuguese and Chinese syllable networks and we showed that they have similar properties.
description: in Proceedings MIPRO junior - Student Papers
title: A collection of mathematical optimization models: Formulations, solution methods and applications
Creators: name: Singh, Bismark
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2023
Subjects: subject: 519 Wahrscheinlichkeiten, angewandte Mathematik

description: This is a cumulative habilitation thesis that includes a summary of ten previously published articles in mathematical optimization. Stochastic optimization is the unifying theme of these works, although there are a few topics dealing with deterministic optimization as well. Chance-constrained optimization is presented in particular.
Asynchronism and nonequilibrium phase transitions in $(1+1)$D quantum cellular automata
Creators: name: Gillman, Edward
name: Carollo, Federico
name: Lesanovsky, Igor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Probabilistic cellular automata provide a simple framework for the exploration of classical nonequilibrium processes. Recently, quantum cellular automata have been proposed that rely on the propagation of a one-dimensional quantum state along a fictitious discrete time dimension via the sequential application of quantum gates. The resulting $(1+1)$-dimensional space-time structure makes these automata special cases of feed-forward quantum neural networks. Here we show how asynchronism -- introduced via non-commuting gates -- impacts on the collective nonequilibrium behavior of quantum cellular automata. We illustrate this through a simple model, whose synchronous version implements a contact process and features a nonequilibrium phase transition in the directed percolation universality class. Non-commuting quantum gates lead to an "asynchronism transition", i.e. a sudden qualitative change in the phase transition behavior once a certain degree of asynchronicity is surpassed. Our results show how quantum effects may lead to abrupt changes of non-equilibrium dynamics, which may be relevant for understanding the role of quantum correlations in neural networks.
description: 5 pages, 3 figures. Supplemental material of 3 pages
Evolution of Fairness in the Not Quite Ultimatum Game
Creators: name: Ichinose, Genki
name: Sayama, Hiroki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The Ultimatum Game (UG) is an economic game where two players (proposer and responder) decide how to split a certain amount of money. While traditional economic theories based on rational decision making predict that the proposer should make a minimal offer and the responder should accept it, human subjects tend to behave more fairly in UG. Previous studies suggested that extra information such as reputation, empathy, or spatial structure is needed for fairness to evolve in UG. Here we show that fairness can evolve without additional information if players make decisions probabilistically and may continue interactions when the offer is rejected, which we call the Not Quite Ultimatum Game (NQUG). Evolutionary simulations of NQUG showed that the probabilistic decision making contributes to the increase of proposers' offer amounts to avoid rejection, while the repetition of the game works to responders' advantage because they can wait until a good offer comes. These simple extensions greatly promote evolution of fairness in both proposers' offers and responders' acceptance thresholds.
description: 14 pages, 3 figures
CONSUMERS' PERCEPTION ON MARKETING STRATEGIES ADOPTED BY SELECT RETAILERS IN ONLINE MARKET
Creators: name: K. SATHISHKUMAR
name: Dr. P. GNANAVEL
Publisher: name: Zenodo
Year: 2023
Subjects: Marketing Strategies, Influencing, Online-retailers and Online Marketing.

description: Abstract
The Internet has transformed the conventional methods of doing business, ultimately causing more difficulties in the online marketing system. Nowadays, due to free access to the plethora of information available, online buyers need not be depended dependent on a salesperson. Because of more comprehensive coverage, online shopping has simplified the way of shopping and has gained hype not only from customers but from retailers as well. Customers select online shopping for different reasons, with convenience and belief being the chief factors next to prices and superiority of products. The study established the level of influence of different marketing strategies adopted by e-retailers. Data has been collected from 450 respondents through a primary source, for which the interview schedule was used. SPSS 20 has been used to analyze and interpret data. T-test, ANOVAs and chi-square analysis have been used. Study results show that marketing strategies adopted by different leading online retailers have significant differences towards influencing the customers to shop through the online market.
Collective expansion in pp collisions using the Tsallis statistics
Creators: name: Gu, J. B.
name: Li, C. Y.
name: Wang, Q.
name: Zhang, W. C.
name: Zheng, H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the transverse momentum ($p_{\rm T}$) spectra of identified hadrons in minimum-bias proton-proton (pp) collisions at a centre-of-mass energy ($\sqrt{s}$) of 0.9, 2.76, 5.02, 7 and 13 TeV in the framework of Tsallis-blast wave (TBW) model. It is found that the model describes well the particle spectra up to 10 GeV/c. The radial flow ($\langle β\rangle$) increases with the collision energy. The degrees of non-equilibrium ($q$) and the Tsallis temperature parameter ($T$) show a similar behaviour, but with a much weaker trend. With this dependence of the freeze-out parameters on the collision energy, we evaluate $\langle β\rangle$, $T$ and $q$ in pp collisions at $\sqrt{s}=$ 8 and 14 TeV and predict the particle spectra at these two energies. Moreover, in order to investigate the multiplicity dependence of the freeze-out parameters, the TBW model is extended to the spectra at different charged-particle multiplicity classes in pp collisions at $\sqrt{s}=$ 7 and 13 TeV. It is observed that at both energies the radial flow increases with the multiplicity while the degree of non-equilibrium shows an opposite behaviour, which is similar to that observed in proton-nucleus (pA) and nucleus-nucleus (AA) collisions at the Large Hadron Collider (LHC) energies. However, the Tsallis temperature parameter increases with the multiplicity, which is opposite to the trend in pA and AA collisions. At similar multiplicities, the radial flow in pp collisions is stronger than those in pA and AA collisions, indicating that the size of the colliding system has significant effects on the final state particle dynamics. Finally, we apply an additional flow correction to the Tsallis temperature parameter and find that the doppler-corrected temperature parameter almost scales with the multiplicity in a uniform way, despite the difference in the colliding system and collision energy.
description: 13 pages, 9 figures, 6 tables
Fortalecimiento de la Visibilidad para la Universidad Autónoma de Chiriquí
Creators: name: Guerra, Gida
Publisher: name: Zenodo
Year: 2022
Subjects: visibilidad, portal revistas, repositorio, identificadores persistentes

description: Situación actual en la visibilidad de la Universidad Autónoma de Chiriquí, fortalezas y amenazas, análisis bibliométrico de su portal de revista, recomendaciones para sincronizar sus datos y aumentar su visibilidad.
Energy transitions driven by phase space reflection operators
Creators: name: de Almeida, Alfredo M. Ozorio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Phase space reflection operators lie at the core of the Wigner-Weyl representation of density operators and observables. The role of the corresponding classical reflections is known in the construction of semiclassical approximations to Wigner functions of pure eigenstates and their coarsegrained microcanonical superpositions, which are not restricted to classically integrable systems. In their active role as unitary operators, they generate transitions between pairs of eigenstates specified by transition Wigner functions (or cross-Wigner functions): The square modulus of the transition Wigner function at each point in phase space is the transition probability for the reflection through that point. Coarsegraining the initial and final energies provides a transition probability density as a phase space path integral. It is here investigated in the simplest classical approximation involving microcanonical Wigner functions. A reflection operator generates a transition between a pair of energy shells with a probability density given by the integral of the inverse modulus of a Poisson bracket over the intersection of a shell with the reflection of its pair. The singularity of the pair of Wigner functions at their dominant caustics is nicely integrable over their intersection, except for a single degree of freedom. Even though this case is not directly relevant for future investigations of chaotic systems, it is shown here how the improved approximation of the spectral Wigner functions in terms of Airy functions resolves the singularity.
description: 19 pages and 1 figure
title: Thegns, Drains and Minor Place-Names
title: The Economic and Social Evolution of Lancashire’s Medieval Coastal Landscapes, c.1150–1550
titleType: Subtitle
Creators: name: Masters, Jonathan
Publisher: name: Lancaster University
Year: 2023
Subjects: Medieval history
Landscape
socio-economic development
Place-Names
Rural
Urban
Wetland environments
Charters
GIS
Spatial analysis
Digital Humanities
Peasantry

description: The management of water and improvement of wetland environments were important aspects of medieval agricultural development, yet wetland improvement in south-west Lancashire before 1550 has received little scholarly attention as part of the growing research spanning rural settlement, landscape, and economic development in the Middle Ages. This thesis investigates the evidence of landscape change and the impact of socio-economic practices related to the diverse geographies of the lower reaches of the Alt, the Martin Mere mosses, and Liverpool and its environs from c.1150 to 1550. The source material is drawn from medieval documentary evidence related to local landholding that proliferated from the thirteenth century onwards and is preserved in Lancashire Archives. My examination of medieval charters deploys an interdisciplinary method combining minor place-name analysis and GIS to enhance the spatial and topographical qualities of medieval documentary sources as an innovative way of investigating landscape change and socio-economic development in rural and urban settings during the medieval period. Medieval deeds can be rich in topographical details and minor place-names that describe places of social, economic, and environmental significance to local communities and bring to light how people perceived and exploited their surroundings in the medieval period. The predominance of hydronyms that defined boundary limits strengthens our current understanding of watery places as natural barriers to potential land reclamation, informing us of medieval practices towards water management. The reconstruction of historical landscapes through mapping and spatial analysis using GIS also reinforces our understanding of ‘lost’ environments. This study, therefore, addresses how a multi-disciplinary approach, using alternative forms of evidence and analytical methods, such as place-names and GIS, can enhance our interpretation of medieval charters from a landscape perspective when considering rural and urban settings in the medieval period.
Origin and Evolution of Structure and Nucleosynthesis for Galaxies in the Local Group
Creators: name: Mathews, G. J.
name: Snedden, A.
name: Phillips, L. A.
name: Suh, I. S.
name: Coughlin, J.
name: Bhattacharya, A.
name: Zhao, X.
name: Lan, N. Q.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Milky Way is the product of a complex evolution of generations of mergers, collapse, star formation, supernova and collisional heating, radiative and collisional cooling, and ejected nucleosynthesis. Moreover, all of this occurs in the context of the cosmic expansion, the formation of cosmic filaments, dark-matter halos, spiral density waves, and emerging dark energy. In this review we summarize observational evidence and discuss recent calculations concerning the formation, evolution nucleosynthesis in the galaxies of the Local-Group. In particular, we will briefly summarize observations and simulations for the dwarf galaxies and the two large spirals of the Local Group. We discuss how galactic halos form within the dark matter filaments that define a super-galactic plane. Gravitational interaction along this structure leads to streaming flows toward the two dominant galaxies in the cluster. These simulations and observations also suggest that a significant fraction of the Galactic halo formed as at large distances and then arrived later along these streaming flows. We also consider the insight provided by observations and simulations of nucleosynthesis both within the galactic halo and dwarf galaxies in the Local Group.
description: updated version includes a number of fixes in references, content, and text
On the blow-up results for a class of strongly perturbed semilinear heat equations
Creators: name: Nguyen, Van Tien
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider in this work some class of strongly perturbed for the semilinear heat equation with Sobolev sub-critical power nonlinearity. We first derive a Lyapunov functional in similarity variables and then use it to derive the blow-up rate. We also classify all possible asymptotic behaviors of the solution when it approaches to singularity. Finally, we describe precisely the blow-up profiles corresponding to these behaviors.
description: 50 pages
Adaptive strategy in Kelly's horse races model
Creators: name: Despons, Armand
name: Lacoste, David
name: Peliti, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We formulate an adaptive version of Kelly's horse model in which the gambler learns from past race results using Bayesian inference. A known asymptotic scaling for the difference between the growth rate of the gambler and the optimal growth rate, known as the gambler'sregret, is recovered. We show how this adaptive strategy is related to the universal portfolio strategy, and we build improved adaptive strategies in which the gambler exploits information contained in the bookmaker odds distribution to reduce his/her initial loss of the capital during the learning phase.
description: 13 pages, 8 figures
title: Profiles of learners based on their cognitive and metacognitive learning strategy use: occurrence and relations with gender, intrinsic motivation, and perceived autonomy support
Creators: name: Kwarikunda, Diana
name: Schiefele, Ulrich
name: Muwonge, Charles Magoba
name: Ssenyonga, Joseph
Publisher: name: Universitätsverlag Potsdam
Year: 2023
Subjects: subject: 300 Sozialwissenschaften

description: For life-long learning, an effective learning strategy repertoire is particularly important during acquisition of knowledge in lower secondary school—an educational level characterized with transition into more autonomous learning environments with increased complex academic demands. Using latent profile analysis, we explored the occurrence of different secondary school learner profiles depending on their various combinations of cognitive and metacognitive learning strategy use, as well as their differences in perceived autonomy support, intrinsic motivation, and gender. Data were collected from 576 ninth grade students in Uganda using self-report questionnaires. Four learner profiles were identified: competent strategy user, struggling user, surface-level learner, and deep-level learner profiles. Gender differences were noted in students’ use of elaboration and organization strategies to learn Physics, in favor of girls. In terms of profile memberships, significant differences in gender, intrinsic motivation and perceived autonomy support were also noted. Girls were 2.4–2.7 times more likely than boys to be members of the competent strategy user and surface-level learner profiles. Additionally, higher levels of intrinsic motivation predicted an increased likelihood membership into the deep-level learner profile, while higher levels of perceived teacher autonomy predicted an increased likelihood membership into the competent strategy user profile as compared to other profiles. Further, implications of the findings were discussed.
description: Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe; 819
Know Your 5 - Apples
Creators: name: Hardy, Spencer
Publisher: name: figshare
Year: 2023
Subjects: Horticultural production not elsewhere classified

description: UVM Extension and the Vermont Center for Ecostudies have been working on some “Know Your 5” pollinator guides as part of a newly formed Vermont Pollination Working Group. These guides cover some important pollinators for, and supported by, commercially grown crops in Vermont.
Atick-Witten Hagedorn Conjecture, near scale-invariant matter and blue-tilted gravity power spectrum
Creators: name: Biswas, Tirthabir
name: Koivisto, Tomi
name: Mazumdar, Anupam
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We will provide an interesting new mechanism to generate almost scale invariant seed density perturbations with a red spectrum, while keeping the gravitational wave spectrum blue-tilted in a stringy thermal contracting phase at temperatures beyond the Hagedorn temperature. This phase is often referred to as the Hagedorn phase where the free energy has been conjectured by Atick and Witten to grow more slowly than ordinary radiation. The primordial fluctuations are created by the statistical thermal fluctuations determined by the partition function, rather than quantum vacuum driven fluid dynamical fluctuations. In order for our mechanism to work we require a non-singular bouncing cosmology.
description: 10 pages, 2 figures; v2: references added, typos corrected
On Detecting Equatorial Symmetry Breaking with LISA
Creators: name: Fransen, Kwinten
name: Mayerson, Daniel R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The equatorial symmetry of the Kerr black hole is generically broken in models of quantum gravity. Nevertheless, most phenomenological models start from the assumption of equatorial symmetry, and little attention has been given to the observability of this smoking gun signature of beyond-GR physics. Extreme mass-ratio inspirals (EMRIs), in particular, are known to sensitively probe supermassive black holes near their horizon; yet estimates for constraints on deviations from Kerr in space-based gravitational wave observations (e.g. with LISA) of such systems are currently based on equatorially symmetric models. We use modified "analytic kludge" waveforms to estimate how accurately LISA will be able to measure or constrain equatorial symmetry breaking, in the form of the lowest-lying odd parity multipole moments $S_2, M_3$. We find that the dimensionless multipole ratios such as $S_2/M^3$ will typically be detectable for LISA EMRIs with a measurement accuracy of $Δ(S_2/M^3) \sim 1\%$; this will set a strong constraint on the breaking of equatorial symmetry.
description: 16 pages + appendices; 2 figures and 4 tables
title: Kompetenzorientierung in sportbezogenen Bildungssettings - Schwerpunkt: Kompetenzen fachfremd unterrichtender Sportlehrkräfte an Grundschulen
Creators: name: Liebl, Sebastian
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2023
Subjects: subject: 371 Schulen, schulische Tätigkeiten; Sonderpädagogik
subject: 374 Erwachsenenbildung

description: Ausgehend vom sogenannten Pisa-Schock im Jahr 2000, also dem unerwartet schlechten Abschneiden deutscher Schüler*innen im ersten internationalen Kompetenztest, hat sich das Thema Kompetenzorientierung – im Windschatten der Bildungswissenschaften – auch in verschiedenen sportbezogenen Bildungssettings angesiedelt. Nach anfänglichen Diskussionen und Ansätzen im Bereich des Sportunterrichts (u. a. Gogoll, 2013; Messmer, 2013), die in der Folge bildungspolitischer Forderungen nach Bildungsstandards zu Beginn der 2000er Jahre entstanden sind, wird Kompetenzorientierung mittlerweile auch intensiv im Bereich der Sportlehrkräftebildung beforscht (Heemsoth & Wibowo, 2020; Meier, 2018). Die Trainer*innenbildung – eher ein Bildungssetting am Rande sportpädagogischer Forschungen – hat bereits 2005 kompetenzorientierte Rahmenrichtlinien als verbindliche Grundlage für Qualifizierungen unter dem Dach des Deutschen Olympischen Sportbundes gesetzt (DSB, 2005). Die im Rahmen der kumulativen Habilitation eingebrachten Beiträge können als Mosaikbausteine angesehen werden, die das Bild von Kompetenzorientierung in den Bildungssettings der sportunterrichtlichen Schüler*innen-, Trainer*innen- und Sportlehrkräftebildung schärfen. Die Zielgruppe der fachfremden Primar-Sportlehrkräfte und deren Kompetenzen bilden innerhalb der Beiträge einen vertiefenden Schwerpunkt.
Ab initio calculations of the hyperfine structure of 109Cd, 109Cd+ and reevaluation of the nuclear quadrupole moment Q(109Cd)
Creators: name: Lu, Benquan
name: Lu, Xiaotong
name: Wang, Tao
name: Chang, Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Large scale ab initio calculations of the electric contribution (i.e. the electric field gradient) to the electric quadrupole hyperfine interaction constants $B$ for the $5p~^2P_{3/2}$ state in $^{109}$Cd$^+$ ion and the $5s5p~^3P_{1,2}$ states in neutral $^{109}$Cd atom were performed. To probe the sensitivity of $B$ to different electron correlation effects, six sets of variational multi-configuration Dirac-Hartree-Fock and relativistic configuration interaction calculations employing different strategies were carried out. The calculated electric field gradients, together with experimental values of $B$, allow us to extract a new value of the nuclear electric quadrupole moment $Q$($^{109}$Cd) = 0.634(22) b which is about 5\% larger than the recommended value [Stone, At. Data Nucl. Data Tables 111-112, 1 (2016); Pyykkö, Mol. Phys. 116, 1328 (2018)]. Efforts were made to provide a realistic theoretical uncertainty for the final $Q$ value based on statistical principles and correlation with the magnetic dipole hyperfine interaction constant $A$.
description: 15 pages,2 figures. arXiv admin note: text overlap with arXiv:1906.08465
Observation of Fermi surface deformation in a dipolar quantum gas
Creators: name: Aikawa, K.
name: Baier, S.
name: Frisch, A.
name: Mark, M.
name: Ravensbergen, C.
name: Ferlaino, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The deformation of a Fermi surface is a fundamental phenomenon leading to a plethora of exotic quantum phases. Understanding these phases, which play crucial roles in a wealth of systems, is a major challenge in atomic and condensed-matter physics. Here, we report on the observation of a Fermi surface deformation in a degenerate dipolar Fermi gas of erbium atoms. The deformation is caused by the interplay between strong magnetic dipole-dipole interaction and the Pauli exclusion principle. We demonstrate the many-body nature of the effect and its tunability with the Fermi energy. Our observation provides basis for future studies on anisotropic many-body phenomena in normal and superfluid phases.
description: 6 pages, 5 figures
Non-small-cell lung cancer prediction using radiomic features and machine learning methods
Creators: name: Shanthi, S.
name: Rajkumar, N.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: One of the primary causes of deaths related to cancer all over the world is Lung cancer. The history of the patient and his histological classification in terms of lung cancer has provided critical information regarding the characteristics of tissues and anatomical locations. There are many different studies that have depicted the radiomic features and their power of prediction in the detection of lung cancer. But its quantitative size in terms of data is large and has been resulting in major challenges in the algorithms of classification. In order to overcome this, symbolic approach to data analysis which employs many different quantitative data is proposed. The work further investigates different techniques of feature selection in order to predict the histologic subtypes of lung cancer by using either symbolic data or the radiomic features. These features have been extracted by using a gray-level co-occurrence matrix (GLCM), the Gabor filter and the fusion that was achieved by making use of concatenation once there is a normalization of the Z score. The results of the experiment have proved that the proposed method had a better performance compared to the other methods.
Quantum non-demolition measurements of moving target states
Creators: name: Andersen, A. L.
name: Mølmer, K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a protocol for probing the state of a quantum system by its resonant coupling and entanglement with a meter system. By continuous measurement of a time evolving meter observable, we infer the evolution of the entangled systems and, ultimately, the state and dynamics of the system of interest. The photon number in a cavity field is thus resolved by simulated monitoring of the time dependent excited state population of a resonantly coupled two-level system, and we propose to regard this as an extension of quantum non-demolition measurements with potential applications in quantum metrology and quantum computing.
description: 6 pages, 5 figures
Quantum causality constraints on kappa-Minkowski space-time
Creators: name: Franco, Nicolas
name: Wallet, Jean-Christophe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 58B34, 53C50, 54F05

description: The $κ$-Minkoswki space-time provides a quantum noncommutative-deformation of the usual Minkowski space-time. However, a notion of causality is difficult to be defined in such a space with noncommutative time. In this paper, we define a notion of causality on a (1+1)-dimensional $κ$-Minkoswki space-time using the more general framework of Lorentzian noncommutative geometry. We show that this notion allows specific causal relations, but limited by a general constraint which is a quantum generalization of the traditional speed of light limit.
description: Preliminary version, 24 pages
Migration and Mixing in the Galactic Disc from Encounters between Sagittarius and the Milky Way
Creators: name: Carr, Christopher
name: Johnston, Kathryn V.
name: Laporte, Chervin F. P.
name: Ness, Melissa K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stars born on near-circular orbits in spiral galaxies can subsequently migrate to different orbits due to interactions with non-axisymmetric disturbances within the disc such as bars or spiral arms. This paper extends the study of migration to examine the role of external influences using the example of the interaction of the Sagittarius dwarf galaxy (Sgr) with the Milky Way (MW). We first make impulse approximation estimates to characterize the influence of Sgr disc passages. The tidal forcing from Sgr can produce changes in both guiding radius ($ΔR_g$) and orbital eccentricity, as quantified by the maximum radial excursion, $ΔR_ {\rm max} $. These changes follow a quadrupole-like pattern across the face of the disc, with amplitude increasing with Galactocentric radius. We next examine a collisionless N-body simulation of a Sgr-like satellite interacting with a MW-like galaxy and find that Sgr's influence in the outer disc dominates over the secular evolution of orbits between disc passages. Finally, we use the same simulation to explore possible observable signatures of Sgr-induced migration by painting the simulation with different age stellar populations. We find that following Sgr disc passages, the migration it induces manifests within an annulus as an approximate quadrupole in azimuthal metallicity variations ($δ_ {\rm [Fe/H]} $), along with systematic variations in orbital eccentricity, $ΔR_ {\rm max} $. These systematic variations can persist for several rotational periods. We conclude that this combination of signatures may be used to distinguish between the different migration mechanisms shaping the chemical abundance patterns of the Milky Way's thin disc.
description: 17 pages, 13 figures, submitted to MNRAS
Manipulation of edge magnetism in hexagonal graphene nanoflake
Creators: name: Kabir, Mukul
name: Saha-Dasgupta, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore possible ways to manipulate the intrinsic edge magnetism in hexagonal graphene nanoflake with zigzag edges, using density functional theory supplemented with on-site Coulomb interaction. The effect of carrier doping, chemical modification at the edge, and finite temperature on the edge magnetism has been studied. The magnetic phase diagram with varied carrier doping, and on-site Coulomb interaction is found to be complex. In addition to the intrinsic antiferromag- netic solution, as predicted for charge neutral hexagonal nanoflake, fully polarized ferromagnetic, and mixed phase solutions are obtained depending on the doped carrier concentration, and on-site Coulomb interaction. The complexity arises due to the competing nature of local Coulomb in- teraction and carrier doping, favoring antiferromagnetic and ferromagnetic coupling, respectively. Chemical modification of the edge atoms by hydrogen leads to partial quenching of local moments, giving rise to a richer phase diagram consisting of antiferromagnetic, ferromagnetic, mixed, and nonmagnetic phases. We further report the influence of temperature on the long-range magnetic ordering at the edge using ab initio molecular dynamics. In agreement with the recent experimental observations, we find that temperature can also alter the magnetic state of neutral nanoflake, which is otherwise antiferromagnetic at zero temperature. These findings will have important implications in controlling magnetism in graphene based low dimensional structures for technological purpose, and in understanding varied experimental reports.
description: 9 Pages, 7 Figures
Cavity optomechanics in a fiber cavity: the role of stimulated Brillouin scattering
Creators: name: Beregi, Abel
name: Barker, Peter F.
name: Pontin, Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the role of stimulated Brillouin scattering in a fiber cavity by numerical simulations and a simple theoretical model and find good agreement between experiment, simulation and theory. We also investigate an optomechanical system based on a fiber cavity in the presence on the nonlinear Brillouin scattering. Using simulation and theory, we show that this hybrid optomechanical system increases optomechanical damping for low mechanical resonance frequencies in the unresolved sideband regime. Furthermore, optimal damping occurs for blue detuning in stark contrast to standard optomechanics. We investigate whether this hybrid optomechanical system is capable cooling a mechanical oscillator to the quantum ground state.
Passive decoy-state quantum key distribution for the weak coherent photon source with intensity fluctuations
Creators: name: Li, Yuan
name: Bao, Wan-su
name: Li, Hong-wei
name: Zhou, Chun
name: Wang, Yang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Passive decoy-state quantum key distribution (QKD) systems, proven to be more desirable than active ones in some scenarios, also have the problem of device imperfections like intensity fluctuations. In this paper the formular of key generation rate of the passive decoy-state protocol using transformed weak coherent pulse (WCP) source with intensity fluctuation is given, and then the influence of intensity fluctuations on the performance of passive decoy-state protocol is rigorously characterized. From numerical simulations, it can be easily seen that intensity fluctuations have unignorable influence on performance of the passive decoy-state QKD protocol with WCP source. Most importantly, our simulations show that, under the same deviation of intensity fluctuations, the passive decoy-state method performs better than the active two-intensity decoy-state method and close to active three-intensity decoy-state method.
Know Your 5 - Strawberries
Creators: name: Hardy, Spencer
Publisher: name: figshare
Year: 2023
Subjects: Horticultural production not elsewhere classified

description: UVM Extension and the Vermont Center for Ecostudies have been working on some “Know Your 5” pollinator guides as part of a newly formed Vermont Pollination Working Group. These guides cover some important pollinators for, and supported by, commercially grown crops in Vermont.
Generalized gravitational entropy of probe branes: flavor entanglement holographically
Creators: name: Karch, Andreas
name: Uhlemann, Christoph F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The notion of generalized gravitational entropy introduced by Lewkowycz and Maldacena allows, via the AdS/CFT correspondence, to calculate CFT entanglement entropies. We adapt the method to the case where flavor branes are present and treated in the probe approximation. This allows to calculate the leading flavor correction to the CFT entanglement entropy from the on-shell action of the probe, while dealing with the backreaction is avoided entirely and from the outset. As an application we give concise derivations for the contribution of massless and massive flavor degrees of freedom to the entanglement entropy in N=4 SYM theory.
description: 24 pages, 1 figure
Weakly unramified representations, finite morphisms, and Knapp-Stein $R$-groups
Creators: name: Choiy, Kwangho
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 11F70, 11E95, 20G20, 22E50

description: We transfer Knapp-Stein $R$-groups for unitary weakly unramified characters between a $p$-adic quasi-split group and its non-quasi-split inner forms, and provide the structure of those $R$-groups for a general connected reductive group over a $p$-adic field. This work supports previous studies on the behavior of $R$-groups between inner forms, and extends Keys' classification for unitary unramified cases of simply-connected, almost simple, semi-simple groups.
Doped Mott insulator on Penrose tiling
Creators: name: Sakai, Shiro
name: Takemori, Nayuta
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the effect of carrier doping to the Mott insulator on the Penrose tiling, aiming at clarifying the interplay between quasiperiodicity and strong electron correlations. We numerically solve the Hubbard model on the Penrose-tiling structure within a real-space dynamical mean-field theory, which can deal with a singular self-energy necessary to describe the Mott insulator and spatial inhomogeneity. We find that the strong correlation effect produces a charge distribution unreachable by a static mean-field approximation. In a small doping region, the spectrum shows a site-dependent gap just above the Fermi energy, which is generated by a singularly large self-energy emergent from the Mott physics and regarded as a real-space counterpart of the momentum-dependent pseudogap observed in a square-lattice Hubbard model.
description: 6 pages, 8 figures
Byte-sized: How can research on wellbeing inform better EdTech?
Creators: name: Garcia, Santiago De Ossorno
Publisher: name: Zenodo
Year: 2019
Subjects: Wellbeing
Educational Technology
Measurement

description: This is a byte sized poster, from a longer technical report from EDUCATE an UCL accelerator program aim to EdTech products and Services How can research on wellbeing inform better EdTech?
 Measuring wellbeing is a long-standing challenge for science. When developing health-related Edtech or interventions to improve wellbeing, designers and educational technologists should consider multiple complexities, including the challenges related to measuring wellbeing while conducting research.
Orbital Hall effect in crystals: inter-atomic versus intra-atomic contributions
Creators: name: Pezo, Armando
name: Ovalle, Diego Garcia
name: Manchon, Aurelien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The orbital Hall effect (OHE) designates the generation of a charge-neutral flow of orbital angular momentum transverse to an initial charge current. Recent theoretical investigations suggest that transition metals display sizable OHE, encouraging experimental search along this direction. Nonetheless, most of these theories assume that the orbital moment originates from the region immediately surrounding the atom core, adopting the so-called {\it atomic center approximation}. In periodic crystals though, the contribution of the interstitial regions is crucial and can lead to a severe misestimation of the OHE. By applying the "modern theory" of orbital magnetization to the OHE, we assess the relative importance of intra-atomic and inter-atomic contributions in selected materials from first principles. We find that whereas the OHE is mostly of intra-atomic origin for wide band-gap semiconductors (e.g., MoS$_2$), the inter-atomic contribution becomes crucial in narrow band-gap semiconductors (SnTe, PbTe) and transition metals (Pt, V etc.). These predictions invalidate the atomic center approximation adopted in some of the previous works and open perspectives for the realization of efficient sources of orbital currents.
description: 6 pages, 4 figures
Regularizing decompositions for matrix pencils and a topological classification of pairs of linear mappings
Creators: name: Futorny, Vyacheslav
name: Rybalkina, Tetiana
name: Sergeichuk, Vladimir V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 15A21, 37C15

description: We give a method for constructing a regularizing decomposition of a matrix pencil, which is formulated in terms of the linear mappings. We prove that two pencils are topologically equivalent if and only if their regularizing decompositions coincide up to permutation of summands and their regular parts coincide up to homeomorphisms of their spaces.
description: 20 pages