cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Transfer of data to third countries
title: The status of implementation of the modernized standard contractual clauses in Austria
titleType: Subtitle
Creators: name: Kihuria, Leah Wanjiku
Publisher: name: FH Vorarlberg (Fachhochschule Vorarlberg)
Year: 2022
Subjects: subject: 000 Allgemeines, Informatik, Informationswissenschaft

description: Data is the new oil,” said British Mathematician and Tesco marketing mastermind Clive Humbly1. Data has also been described as the backbone of digital retail enterprises2 and the currency of the digital age. Whether these statements live up to be true is debatable, but what is certain is the fact that the internet age has contributed to the avalanche of data witnessed today. In a century dominated by predictive analysis and artificial intelligence, it is no surprise that by the end of the last decade, data companies Apple, Amazon and Microsoft closed as the world´s first trillion-dollar companies, with their revenues dwarfing economies of several countries across the globe.3The recognition of the importance of data in today´s economy bears with it the responsibility to protecting its owners. While this intricate balance has long been the subject of legal analysis the General Data Protection Regulation, 2018, is hailed as the world´s most comprehensive and strict data protection regime currently in force. In addition to protecting the personal data of persons from its member countries, the Regulation also seeks to ensure the same protection accompanies any data transferred out of the European Union to other countries. It is almost 5 years since the Regulation was passed and process of implementation into business operations an important topic of discussion. Of importance to this study are the Modernized Standard Contractual Clauses, a tool of data transfer to countries outside the EU, which replace the three sets of SCCs adopted by the now repealed Data Protection Directive 94/46. These Standard Contractual Clauses came into effect on 27th September 2021, and companies have until 27th September 2022 to rely on the old set of clauses. With this deadline coming up, how far have the clauses been integrated into operations by businesses in Austria and the EU?
Modelling of the scandium abundance evolution in AmFm stars
Creators: name: Hui-Bon-Hoa, A.
name: Alecian, G.
name: LeBlanc, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Scandium is a key element of the Am star phenomenon since its surface under-abundance is one of the criteria that characterise such stars. Thanks to the availability of a sufficiently complete set of theoretical atomic data for this element, reliable radiative accelerations for Sc can now be computed, which allows its behaviour under the action of atomic diffusion to be modelled. We explore the required conditions, in terms of mixing processes or mass loss, for our models to reproduce the observed surface abundances of Sc in Am stars. The models are computed with the Toulouse-Geneva evolution code, which uses the parametric single-valued parameter method for the calculation of radiative accelerations. Fingering mixing is included, using a prescription that comes from 3D hydrodynamical simulations. Other parameter-dependent turbulent mixing processes are also considered. A global mass loss is also implemented. When no mass loss is considered, the observed abundances of Sc are rather in favour of the models whose superficial layers are fully mixed down to the iron accumulation zone, although other mixing prescriptions are also able to reproduce the observations for the most massive model presented here ($2.0 M_\odot$). The models including mass loss with rates in the range of $[10^{-13};10^{-14}] M_\odot$/yr are compatible with some of the observations, while other observations suggest that the mass-loss rate could be lower. The constraints brought by the modelling of Sc are consistent with those derived using other chemical elements.
description: 9 pages, 7 figures
title: Technology in Teacher Education:  Student Perceptions of Instructional Technology in the Classroom
Creators: name: Zakrzewski, Jennifer
name: Newton, BriAnne
Publisher: name: Utah State University
Year: 2022

description: Access the online Pressbooks version of this article here.
Instructional technology continues to become more prevalent in classrooms around the globe. However, it is unclear whether teachers are prepared and have the self-efficacy to incorporate instructional technology into the classroom. This study reviews an instructional technology course for preservice teachers and whether student comfort increased with instructional technology throughout the course. In addition, data were collected regarding preferences pertaining to instructional technology. The data shows preservice teachers’ comfort increased throughout this course in terms of instructional technology. In addition, the data show preservice teachers are more comfortable working with instructional technology that includes templates rather than instructional technology activities that require ground-up design.
What the Timing of Millisecond Pulsars Can Teach us about Their Interior
Creators: name: Alford, Mark G.
name: Schwenzer, Kai
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The cores of compact stars reach the highest densities in nature and therefore could consist of novel phases of matter. We demonstrate via a detailed analysis of pulsar evolution that precise pulsar timing data can constrain the star's composition, through unstable global oscillations (r-modes) whose damping is determined by microscopic properties of the interior. If not efficiently damped, these modes emit gravitational waves that quickly spin down a millisecond pulsar. As a first application of this general method, we find that ungapped interacting quark matter is consistent with both the observed radio and x-ray data, whereas for ordinary nuclear matter some additional enhanced damping mechanism is required.
description: 6 pages, 5 figures, version to be published in PRL
title: Book review of 99 Tips for Creating Simple and Sustainable Educational Videos by Karen Costa
Creators: name: Olsen, Jason
Publisher: name: Utah State University
Year: 2022

description: Access the online Pressbooks version of this article here.
Book review of Costa, K. (2020). 99 Tips for Creating Simple and Sustainable Educational Videos. Stylus Publishing. This article discusses Costa’s book from the perspective of both experienced asynchronous instructors and those thrust into different delivery methods due to education challenges created by the pandemic.
title: Die Krypta im Münster. Unserer Lieben Frau zu Konstanz
Creators: name: Eggenberger, Peter
name: Stöckli, Werner
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Tropical mirror symmetry for elliptic curves
Creators: name: Boehm, Janko
name: Bringmann, Kathrin
name: Buchholz, Arne
name: Markwig, Hannah
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14J33, 14N35, 14T05, 11F11, 81T18 (Primary) 14H30, 14N10, 14H52, 14H81 (Secondary)

description: Mirror symmetry relates Gromov-Witten invariants of an elliptic curve with certain integrals over Feynman graphs. We prove a tropical generalization of mirror symmetry for elliptic curves, i.e., a statement relating certain labeled Gromov-Witten invariants of a tropical elliptic curve to more refined Feynman integrals. This result easily implies the tropical analogue of the mirror symmetry statement mentioned above and, using the necessary Correspondence Theorem, also the mirror symmetry statement itself. In this way, our tropical generalization leads to an alternative proof of mirror symmetry for elliptic curves. We believe that our approach via tropical mirror symmetry naturally carries the potential of being generalized to more adventurous situations of mirror symmetry. Moreover, our tropical approach has the advantage that all involved invariants are easy to compute. Furthermore, we can use the techniques for computing Feynman integrals to prove that they are quasimodular forms. Also, as a side product, we can give a combinatorial characterization of Feynman graphs for which the corresponding integrals are zero. More generally, the tropical mirror symmetry theorem gives a natural interpretation of the A-model side (i.e., the generating function of Gromov-Witten invariants) in terms of a sum over Feynman graphs. Hence our quasimodularity result becomes meaningful on the A-model side as well. Our theoretical results are complemented by a Singular package including several procedures that can be used to compute Hurwitz numbers of the elliptic curve as integrals over Feynman graphs.
description: comment on historical development added
title: Das Alte Gymnasium in Sigmaringen
Creators: name: Hannmann, Eckart
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Non-stationary Stochastic Optimization
Creators: name: Besbes, O.
name: Gur, Y.
name: Zeevi, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We consider a non-stationary variant of a sequential stochastic optimization problem, in which the underlying cost functions may change along the horizon. We propose a measure, termed variation budget, that controls the extent of said change, and study how restrictions on this budget impact achievable performance. We identify sharp conditions under which it is possible to achieve long-run-average optimality and more refined performance measures such as rate optimality that fully characterize the complexity of such problems. In doing so, we also establish a strong connection between two rather disparate strands of literature: adversarial online convex optimization; and the more traditional stochastic approximation paradigm (couched in a non-stationary setting). This connection is the key to deriving well performing policies in the latter, by leveraging structure of optimal policies in the former. Finally, tight bounds on the minimax regret allow us to quantify the "price of non-stationarity," which mathematically captures the added complexity embedded in a temporally changing environment versus a stationary one.
ROP: Matrix recovery via rank-one projections
Creators: name: Cai, T. Tony
name: Zhang, Anru
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Estimation of low-rank matrices is of significant interest in a range of contemporary applications. In this paper, we introduce a rank-one projection model for low-rank matrix recovery and propose a constrained nuclear norm minimization method for stable recovery of low-rank matrices in the noisy case. The procedure is adaptive to the rank and robust against small perturbations. Both upper and lower bounds for the estimation accuracy under the Frobenius norm loss are obtained. The proposed estimator is shown to be rate-optimal under certain conditions. The estimator is easy to implement via convex programming and performs well numerically. The techniques and main results developed in the paper also have implications to other related statistical problems. An application to estimation of spiked covariance matrices from one-dimensional random projections is considered. The results demonstrate that it is still possible to accurately estimate the covariance matrix of a high-dimensional distribution based only on one-dimensional projections.
description: Published in at http://dx.doi.org/10.1214/14-AOS1267 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Dynamics of Water Supply and Demand in the Bandama River  Watershed of Cote d'Ivoire
Creators: name: Traore, Sarah Alima
Publisher: name: University of Massachusetts Amherst
Year: 2022

description: Water is a fundamental human right supporting life, health, and livelihoods. Yet water-related issues are ranked among the top five global economic risks (WEF, 2020). About two-thirds (4 billion) of the world's population live with severe water scarcity for at least one month, of which about 48% live in both India and China (Mekonnen et al., 2016). In Côte d'Ivoire, the Bandama River, one of the largest in the country, has struggled to meet expected demand, causing recurrent water and electricity shortages. The city of Bouaké in Côte d'Ivoire and neighboring towns experienced a severe water shortage in 2018 with the drying up of the water supply reservoir (Loka along the Bandama River), affecting 70% of the population causing difficult economic and social conditions. To fully understand this dimension of water scarcity in the Bandama watershed, this study models current water availability using SWAT and assesses the current watershed system in Cote d’Ivoire. Model calibration and validation performances were suboptimal. However, the model gave important information about the dominant process and the critical areas of the watershed. This information guided the development of strategies to build resilience in the water supply system through institutional and stakeholder-driven approaches.
title: Checking In: Learner Perceptions of the Value of Language Study in College
Creators: name: Ledford, Julian
name: Odoms, Tijá
Publisher: name: Utah State University
Year: 2022

description: Access the online Pressbooks version of this article here.
An understanding of the products that Generation Z students value the most from their college-level language study is essential for instructors who must effectively unpack second language theories within the context of their classroom instruction. This preliminary study examines the value system regarding language study as revealed in the language-learning perceptions of a group of current language learners (n = 53) and recent college graduates (n = 49) at a small, private, liberal arts college in the southeast. Through qualitative analysis of student responses, the following emerged as language-learning products that students valued the most: (a) practical application of a specific language to vocational activities and to everyday life, (b) representation of and engagement with the cultures of the people whose languages (L2) they study, and (c) engagement with speech communities in which the second language (L2) is spoken with varying levels of proficiency. The study concludes with suggestions for areas of further study that will be of value to second language researchers and instructors alike.
title: Mitteilungen ; Quellennachweis für die Abbildungen
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: The Relationship Between PM2.5 and Chronic Respiratory Disease in Senegal
Creators: name: Glenn, Bailey
Publisher: name: University of Massachusetts Amherst
Year: 2022

description: Chronic respiratory diseases such as asthma and chronic bronchitis have significantly increased in prevalence in Africa over the past 10 years. Recent studies have demonstrated that exposure to air pollution may be associated with an increased risk of chronic respiratory diseases. However, such studies have predominantly been conducted in western societies or often used urbanicity as a proxy for exposure to air pollution. Therefore, we evaluated the association between PM2.5 exposure and asthma/chronic bronchitis in Senegal. A cross-sectional study was conducted for the time period of 3 October 2010 to 28 April 2011 using annual concentrations of PM2.5 measured via multiple satellite instruments, and asthma/chronic bronchitis, which was self-reported at baseline via a health survey questionnaire. We used mixed model logistic regression to evaluate the relationship between PM2.5 exposure and asthma/chronic bronchitis risk while adjusting for lifestyle factors, location, and other air pollutants. Sex was evaluated as an effect modifier. The adjusted association between PM2.5 and asthma/chronic bronchitis was 1.03 (95%CI: 0.99 – 1.06). In males the adjusted odds ratio was 1.09 (95%CI: 1.03-1.15), compared to females (aOR 1.01 (95%CI: 0.97 – 1.05). Our results suggest that increasing levels of exposure to PM2.5 puts individuals at a higher risk for chronic respiratory diseases, especially men. These findings have significant policy implications and should be built upon in future research.
title: Draw a picture of yourself learning math: What pre-service teachers’ self-portraits illustrate about their complex relationships with mathematics
Creators: name: Sommers, Samantha
name: Unigarro, Michelle
name: Vantassel, Danielle
name: Bertolone-Smith, Claudia M
name: Puliatte, Alison
Publisher: name: Utah State University
Year: 2022

description: Access the online Pressbooks version of this article here.
The purpose of this study was to examine factors that may influence pre-service teachers’ relationships with mathematics. Elementary pre-service teachers who were enrolled in a mathematics methods course (n = 52) wrote a letter to math and drew a picture of themselves learning math. The self-portraits were analyzed by a team of undergraduate student researchers and teacher educators to identify themes related to the types of emotions, experiences, and situations displayed. The results of the self-portrait analysis indicated a higher percentage of negative emotions as compared to positive and neutral emotions. Additionally, the portraits indicated the influence of early elementary experiences on developing the participants’ math identity and relationships with mathematics. Implications for teacher preparation coursework and elementary mathematics pedagogy are discussed.
Index map, $σ$-connections, and Connes-Chern character in the setting of twisted spectral triples
Creators: name: Ponge, Raphael
name: Wang, Hang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Operator Algebras (math.OA)
subject: Differential Geometry (math.DG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: Twisted spectral triples are a twisting of the notion of spectral triple aiming at dealing with some type III geometric situations. In the first part of the paper, we give a geometric construction of the index map of a twisted spectral triple in terms of $σ$-connections on finitely generated projective modules. This makes it more transparent the analogy with the indices of Dirac operators with coefficients in vector bundles. In the second part, we give a direct construction of the Connes-Chern character of a twisted spectral, both in the invertible and non-invertible cases. Combining these two parts we obtain an analogue the Atiyah-Singer index formula for twisted spectral triples.
description: 35 pages; v3: minor changes to the exposition on $\sigma$-connections
Multi-color Kaczmarz Method for Color Magnetic Particle Imaging
Creators: name: Zhang, Peng
name: Liu, Jie
name: Li, YiMeng
name: Hui, Hui
name: Tian, Jie
Publisher: name: International Journal on Magnetic Particle Imaging IJMPI
Year: 2023

description: Color magnetic particle imaging (cMPI) is an advanced technology to distinguish different kinds of nanoparticles. This technology is realized based on the different harmonic responses and relaxation behavior of particles. However, the commonly used MPI Kaczmarz method has artifacts when it is applied to cMPI reconstruction. To address this problem, a multi-color Kaczmarz method (MKZ) is proposed for cMPI reconstruction. We introduce a new interference item to identify the artifacts caused by the interference between different particles. This method showed better performance than the Kaczmarz method in numerical experiments. It can eliminate the artifacts and efficiently improve the image quality of cMPI.
description: International Journal on Magnetic Particle Imaging IJMPI, Vol 9 No 1 Suppl 1 (2023)
$\textit{Gaia}$ white dwarfs within 40 pc III: spectroscopic observations of new candidates in the southern hemisphere
Creators: name: O'Brien, Mairi W.
name: Tremblay, P. -E.
name: Fusillo, N. P. Gentile
name: Hollands, M. A.
name: Gaensicke, B. T.
name: Koester, D.
name: Pelisoli, I.
name: Cukanovaite, E.
name: Cunningham, T.
name: Doyle, A. E.
name: Elms, A.
name: Farihi, J.
name: Hermes, J. J.
name: Holberg, J.
name: Jordan, S.
name: Klein, B. L.
name: Kleinman, S. J.
name: Manser, C. J.
name: De Martino, D.
name: Marsh, T. R.
name: McCleery, J.
name: Melis, C.
name: Nitta, A.
name: Parsons, S. G.
name: Raddi, R.
name: Rebassa-Mansergas, A.
name: Schreiber, M. R.
name: Silvotti, R.
name: Steeghs, D.
name: Toloza, O.
name: Toonen, S.
name: Torres, S.
name: Weinberger, A. J.
name: Zuckerman, B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a spectroscopic survey of 248 white dwarf candidates within 40 pc of the Sun; of these 244 are in the southern hemisphere. Observations were performed mostly with the Very Large Telescope (X-Shooter) and Southern Astrophysical Research Telescope. Almost all candidates were selected from $\textit{Gaia}$ Data Release 3 (DR3). We find a total of 246 confirmed white dwarfs, 209 of which had no previously published spectra, and two main-sequence star contaminants. Of these, 100 white dwarfs display hydrogen Balmer lines, 69 have featureless spectra, and two show only neutral helium lines. Additionally, 14 white dwarfs display traces of carbon, while 37 have traces of other elements that are heavier than helium. We observe 36 magnetic white dwarfs through the detection of Zeeman splitting of their hydrogen Balmer or metal spectral lines. High spectroscopic completeness (> 97 per cent) has now been reached, such that we have 1058 confirmed $\textit{Gaia}$ DR3 white dwarfs out of 1083 candidates within 40 pc of the Sun at all declinations.
description: 49 pages, 19 figures. Accepted by MNRAS on 8 November, 2022
title: Das Verwaltungsgericht entscheidet... Zum Kastell Köngen
Creators: name: Zürn, Hartwig
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 3 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Wasserburg Eschelbronn, Rhein-Neckar-Kreis, ein Niederadelssitz des 13. bis 18. Jahrhunderts
Creators: name: Lutz, Dietrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 4 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Quantitative magnetic particle imaging monitors pulmonary vascular permeability in vivo
Creators: name: Feng, Xin
Publisher: name: International Journal on Magnetic Particle Imaging IJMPI
Year: 2023

description: Increased pulmonary vascular permeability is a characteristic feature of acute lung injury and some chronic lung diseases. Currently there are no established methods to visualize pulmonary vascular permeability change in vivo in in both research and clinical settings. Terminal assays such as Evans Blue test, lung wet/dry ratio, and bronchoalveolar lavage fluid (BALF) total protein test lack the capability of monitoring the dynamics of vascular injury during disease progression. In this study, we used magnetic particle imaging (MPI)-CT dual-modality imaging combined with quantitative image analysis to noninvasively visualize and evaluate pulmonary vascular permeability in vivo in animal models. Oleic acid (OA) induced acute respiratory distress syndrome (ARDS) model was used for imaging. Based on the in vivo 3D MPI-CT images, we defined pulmonary SPIO extravasation index (SEI) to evaluate the vascular permeability. Significantly increased SEI was observed in the ARDS mice, which correlated well with ex vivo imaging findings. Moreover, quantitative imaging results were validated by ex vivo Evans Blue test, lung wet/dry ratio, BALF total protein concentration measurements and H&E histology. Our results suggest that 3D quantitative MPI-CT can be used to evaluate pulmonary vascular permeability, providing a noninvasive tool to monitor the dynamic change of pulmonary injury in vivo.
description: International Journal on Magnetic Particle Imaging IJMPI, Vol 9 No 1 Suppl 1 (2023)
Interface tension of the electroweak phase transition
Creators: name: Csikor, F.
name: Fodor, Z.
name: Hein, J.
name: Heitger, J.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1995
Subjects: subject: 530
subject: electroweak interaction: nonperturbative
subject: nonperturbative: electroweak interaction
subject: lattice field theory: action
subject: Higgs model: SU(2)
subject: critical phenomena
subject: finite temperature
subject: surface tension
subject: Higgs particle: mass
subject: mass: Higgs particle
subject: tunneling
subject: energy levels
subject: bootstrap
subject: numerical calculations

description: In our nonperturbative lattice investigation we study the interface tension of the finite-temperature electroweak phase transition. In this analysis the Higgs mass has been chosen to be about $35$ GeV. At the transition point of a finite volume system, tunnelling between the symmetric and the Higgs phase takes place. This phenomenon leads to a splitting of the ground state, which can be used to determine the interface tension. The result obtained this way agrees with the result of the two-coupling method and with the prediction of the perturbative approach.
Heat transport as torsional responses and Keldysh formalism in a curved spacetime
Creators: name: Shitade, Atsuo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We revisit a theory of heat transport in the light of a gauge theory of gravity and find the proper heat current with a corresponding gauge field, which yields the natural definitions of the heat magnetization and the Kubo-formula contribution to the thermal conductivity as torsional responses. We also develop a general framework for calculating gravitational responses by combining the Keldysh and Cartan formalisms. By using this framework, we explicitly calculate these two quantities and reproduce the Wiedemann-Franz law for the thermal Hall conductivity in the clean and non-interacting case. Finally, we discuss an effective action for the quantized thermal Hall effect in $(2 + 1)$-D topological superconductors.
description: 14 pages, no figures
Improved metastability bounds on the Standard Model Higgs mass
Creators: name: Espinosa, J. R
name: Quiros, M.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1995
Subjects: subject: 530
subject: Salam-Weinberg model
subject: effective potential: correction
subject: finite temperature
subject: mass: top
subject: top: mass
subject: Higgs particle: mass
subject: mass: Higgs particle
subject: lower limit
subject: critical phenomena: bubble
subject: tunneling
subject: Higgs particle: electroproduction
subject: electroproduction: Higgs particle
subject: numerical calculations

description: Depending on the Higgs-boson and top-quark masses, MH and Mt, the effective potential of the Standard Model at finite (and zero) temperature can have a deep and non-standard stable minimum 〈φ(T)〉 at values of the field much larger than . We have computed absolute lower bounds on MH, as a function of Mt, imposing the condition of no decay by thermal fluctuations, or quantum tunnelling, to the stable minimum. Our effective potential at zero temperature includes all next-to-leading logarithmic corrections (making it extremely scale-independent), and we have used pole masses for the Higgs-boson and top-quark. Thermal corrections to the effective potential include plasma effects by one-loop ring resummation of Debye masses. All calculations, including the effective potential and the bubble nucleation rate, are performed numerically, and so the results do not rely on any kind of analytical approximation. Easy-to-use fits are provided for the benefit of the reader. Conclusions on the possible Higgs detection at LEP-200 are drawn.
Heavy quark correlations in direct photon-photon collisions
Creators: name: Kramer, Michael
name: Laenen, Eric
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1996
Subjects: subject: 530
subject: electron positron: annihilation
subject: annihilation: electron positron
subject: exchange: two-photon
subject: two-photon: exchange
subject: photon photon: exclusive reaction
subject: quark: pair production
subject: pair production: quark
subject: heavy quark
subject: quark: charm
subject: quark: correlation
subject: quantum chromodynamics
subject: perturbation theory: higher-order
subject: transverse momentum: spectrum
subject: spectrum: transverse momentum
subject: mass spectrum: (quark antiquark)
subject: (quark antiquark): mass spectrum
subject: angular distribution
subject: rapidity
subject: numerical calculations
subject: 175: 500 GeV-cms

description: In two-photon collisions at LEP2 and a future e + e − linear collider heavy quarks (mainly charm) will be pair-produced rather copiously. The production via direct and resolved photons can be distinguished experimentally via a remnant-jet tag. We study correlations of the heavy quarks at next-to-leading order in QCD in the direct channel, which is free from phenomenological parton densities in the photon. These correlations are therefore directly calculable in perturbative QCD and provide a stringent test of the production mechanism.
Analysis of the frequency of superbolides on the last 2000 years
Creators: name: Rocha Bouzo, María Elisa
Publisher: name: Zenodo
Year: 2023
Subjects: superbólido
Superbolide
Fireballs
Análisis
Estadística no paramétrica
Estadística bayesiana
Frequency
Kernel Density Estimation
Sonic boom
Meteor showers

description: Bachelor's Thesis in which an analysis of the frequency of an astronomical event, the superbolides, is shown. The research has been conducted using two different databases: The first one is a compilation of news from several newspapers by UCM researchers and students, with a duration of almost 2000 years The second one is from CNEOS, JPL, NASA, its duration is 35 years Both are analyzed in detail using non-parametric statistics and then compared using Bayesian statistics. Finally, the most important conclusions are discussed.
Low Power Dual Edge-Triggered Static D Flip-Flop
Creators: name: Anurag
name: Singh, Gurmohan
name: Sulochana, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: This paper enumerates new architecture of low power dual-edge triggered Flip-Flop (DETFF) designed at 180nm CMOS technology. In DETFF same data throughput can be achieved with half of the clock frequency as compared to single edge triggered Flip-Flop (SETFF). In this paper conventional and proposed DETFF are presented and compared at same simulation conditions. The post layout experimental results comparison shows that the average power dissipation is improved by 48.17%, 41.29% and 36.84% when compared with SCDFF, DEPFF and SEDNIFF respectively and improvement in PDP is 42.44%, 33.88% and 24.69% as compared to SCDFF, DEPFF and SEDNIFF respectively. Therefore the proposed DETFF design is suitable for low power and small area applications.
description: Dual-Edge Triggered, Flip-Flop, High Speed, Low Power, Static D Flip-Flop
title: Inhalt
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 6, Nr. 1 (1977), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Temperature and Field Dependence of Magnetic Domains in La$_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$
Creators: name: Bryant, B.
name: Moritomo, Y.
name: Tokura, Y.
name: Aeppli, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Colossal magnetoresistance and field-induced ferromagnetism are well documented in manganite compounds. Since domain wall resistance contributes to magnetoresistance, data on the temperature and magnetic field dependence of the ferromagnetic domain structure are required for a full understanding of the magnetoresistive effect. Here we show, using cryogenic Magnetic Force Microscopy, domain structures for the layered manganite La$_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$ as a function of temperature and magnetic field. Domain walls are suppressed close to the Curie temperature T$_C$, and appear either via the application of a c-axis magnetic field, or by decreasing the temperature further. At temperatures well below T$_C$, new domain walls, stable at zero field, can be formed by the application of a c-axis field. Magnetic structures are seen also at temperatures above T$_C$: these features are attributed to inclusions of additional Ruddleston-Popper manganite phases. Low-temperature domain walls are nucleated by these ferromagnetic inclusions.
description: 6 figures
Constraining the nature of the 18-min periodic radio transient GLEAM-X J162759.5-523504.3 via multi-wavelength observations and magneto-thermal simulations
Creators: name: Rea, N.
name: Zelati, F. Coti
name: Dehman, C.
name: Hurley-Walker, N.
name: De Martino, D.
name: Bahramian, A.
name: Buckley, D. A. H.
name: Brink, J.
name: Kawka, A.
name: Pons, J. A.
name: Vigano, D.
name: Graber, V.
name: Ronchi, M.
name: Pardo, C.
name: Borghese, A.
name: Parent, E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We observed the periodic radio transient GLEAM-X J162759.5-523504.3 (GLEAM-X J1627) using the Chandra X-ray Observatory for about 30-ks on January 22-23, 2022, simultaneously with radio observations from MWA, MeerKAT and ATCA. Its radio emission and 18-min periodicity led the source to be tentatively interpreted as an extreme magnetar or a peculiar highly magnetic white dwarf. The source was not detected in the 0.3-8 keV energy range with a 3-sigma upper-limit on the count rate of 3x10^{-4} counts/s. No radio emission was detected during our X-ray observations either. Furthermore, we studied the field around GLEAM-X J1627 using archival ESO and DECam data, as well as recent SALT observations. Many sources are present close to the position of GLEAM-X J1627, but only two within the 2" radio position uncertainty. Depending on the assumed spectral distribution, the upper limits converted to an X-ray luminosity of L_{X}<6.5x10^{29} erg/s for a blackbody with temperature kT=0.3 keV, or L_{X}<9x10^{29} erg/s for a power-law with photon index Gamma = 2 (assuming a 1.3 kpc distance). Furthermore, we performed magneto-thermal simulations for neutron stars considering crust- and core-dominated field configurations. Based on our multi-band limits, we conclude that: i) in the magnetar scenario, the X-ray upper limits suggest that GLEAM-X J1627 should be older than ~1 Myr, unless it has a core-dominated magnetic field or has experienced fast-cooling; ii) in the white dwarf scenario, we can rule out most binary systems, a hot sub-dwarf and a hot magnetic isolated white dwarf (T>10.000 K), while a cold isolated white dwarf is still compatible with our limits.
description: 17 pages, 9 figures; ApJ accepted
Embedding nonrelativistic physics inside a gravitational wave
Creators: name: Bekaert, Xavier
name: Morand, Kevin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Gravitational waves with parallel rays are known to have remarkable properties: Their orbit space of null rays possesses the structure of a non-relativistic spacetime of codimension-one. Their geodesics are in one-to-one correspondence with dynamical trajectories of a non-relativistic system. Similarly, the null dimensional reduction of Klein-Gordon's equation on this class of gravitational waves leads to a Schroedinger equation on curved space. These properties are generalized to the class of gravitational waves with a null Killing vector field, of which we propose a new geometric definition, as conformally equivalent to the previous class and such that the Killing vector field is preserved. This definition is instrumental for performing this generalization, as well as various applications. In particular, results on geodesic completeness are extended in a similar way. Moreover, the classification of the subclass with constant scalar invariants is investigated.
description: 56 pages, 9 figures, v3:Minor corrections
The Bridgeland's Ringel-Hall algebra associated to an algebra with global dimension at most two
Creators: name: Geng, Shengfei
name: Peng, Liangang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16G10, 16W35

description: For any finitely dimensional associative algebra with global dimension $\leq 2$, we show that there is an embedding from the twisted Ringel-Hall algebra to the Brigeland's Ringel-Hall algebra. In particular, this result is true for tilted algebras and canonical algebras.
description: arXiv admin note: text overlap with arXiv:1111.0745 by other authors;The title changed
title: Transforming Curriculum: A Process for Implementing Problem-Based Learning in a College-Level Course
Creators: name: Robertson, Morgan
name: Robertson, Marla K.
Publisher: name: Utah State University
Year: 2022

description: Access the online Pressbooks version of this article here.

Transforming curriculum by implementing Problem-Based Learning (PBL) in the college-level classroom helps students internalize the concepts of a course, improve their critical and reflective thinking skills, learn to problem-solve using questioning, and ultimately construct a better understanding of course concepts in a personally relevant way. This article introduces a process for implementing PBL in a college-level course. Each of the four main ideas in PBL, motivation, collaboration, reflection, and facilitation, are addressed with a particular focus on the role of the educator in designing and implementing PBL in the classroom. An example of how the process works in a specific college-level course is provided with explanations of the thinking that went into each of the steps in the process and the outcomes of the implementation, including examples of student assignments and the challenges and benefits of the implementation.
title: Mitteilungen
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 6, Nr. 1 (1977), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Three Dimensional Spatio-Temporal Cluster Analysis of SARS-CoV-2 Infections
Creators: name: Allison, Keith W
Publisher: name: University of Massachusetts Amherst
Year: 2022

description: The COVID-19 pandemic has heightened the need for fine-scale analysis of the clustering of cases of infectious disease in order to better understand and prevent the localized spread of infection. The students living on the University of Massachusetts, Amherst campus provided a unique opportunity to do so, due to frequent mandatory testing during the 2020-2021 academic year, and dense living conditions. The South-West dormitory area is of particular interest due to its extremely high population density, housing around half of students living on campus during normal conditions. Using data gathered by the Public Health Promotion Center (PHPC), we analyzed the clustering of SARS-CoV 2 cases in three-dimensional space as well as time within and between the three tallest occupied buildings in the Southwest dormitory area, John Quincy Adams, Kennedy, and Coolidge. We used the SaTScan program and its Space-Time Permutation Model, which searches for areas with a greater than expected number of cases. Analysis was done at various levels of spacial detail. Additionally, this analysis was compared to the purely temporal surveillance method, CDC’s Early Aberration Reporting System (EARS). Analysis with SaTScan at the room and floor level showed multiple significant clusters within the Coolidge dormitory building. Floor-level analysis was found to be as sensitive as and less burdensome than room-level analysis. We recommend using scan statistics in conjunction with other methods such as purely temporal scans and wastewater analysis to detect and respond to outbreaks on campus.
Creation and protection of entanglement in systems out of thermal equilibrium
Creators: name: Bellomo, Bruno
name: Antezza, Mauro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the creation of entanglement between two quantum emitters interacting with a realistic common stationary electromagnetic field out of thermal equilibrium. In the case of two qubits we show that the absence of equilibrium allows the generation of steady entangled states, which is inaccessible at thermal equilibrium and is realized without any further external action on the two qubits. We first give a simple physical interpretation of the phenomenon in a specific case and then we report a detailed investigation on the dependence of the entanglement dynamics on the various physical parameters involved. Sub- and super-radiant effects are discussed, and qualitative differences in the dynamics concerning both creation and protection of entanglement according to the initial two-qubit state are pointed out.
description: 33 pages, 12 figures, some typos corrected with respect to both the previous arXiv and published versions
title: Pre-Service Elementary School Teachers’ Perceptions Of Themselves As Learners Of Mathematics And Science
Creators: name: Moss, Diana L.
name: Wilson, Rachel
name: Divis, Danielle
Publisher: name: Utah State University
Year: 2022

description: Access the online Pressbooks version of this article here.
This study investigated how prospective elementary teachers view themselves as learners of mathematics and science during their last year in a teacher preparation program at an American university. Using drawing and reflections as the method for collecting data, prospective teachers were prompted to draw themselves and reflect on learning mathematics and draw themselves and reflect on learning science prior to and after their mathematics and science methods courses. Drawings (n = 147) were coded according to the presence or absence of several themes including physical objects, teachers, students, and environment. The drawings and reflections indicated that the experience of participating in mathematics and science methods courses taught from a social constructivist perspective positively impacted prospective teachers’ conceptions of themselves as learners and in ways consistent with current research-based pedagogies. The research study described here proposes that prospective teachers’ learning experiences in mathematics and science methods classes might impact how they will teach mathematics and science in their future elementary classrooms.
Probabilistic models on contextuality scenarios
Creators: name: Fritz, Tobias
name: Leverrier, Anthony
name: Sainz, Ana Belén
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: F.4.0

description: We introduce a framework to describe probabilistic models in Bell experiments, and more generally in contextuality scenarios. Such a scenario is a hypergraph whose vertices represent elementary events and hyperedges correspond to measurements. A probabilistic model on such a scenario associates to each event a probability, in such a way that events in a given measurement have a total probability equal to one. We discuss the advantages of this framework, like the unification of the notions of contexuality and nonlocality, and give a short overview of results obtained elsewhere.
description: In Proceedings QPL 2013, arXiv:1412.7917
title: Landesjubiläum und stauferzeitliche Baudenkmale - Überblick über das Stauferprogramm des Landesdenkmalamtes
Creators: name: Schulz, Hans-Jürgen
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 6, Nr. 2 (1977), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
The New NCAA: The Impact of NIL Deals and Alston Benefits on Distributive Justice
Creators: name: Flynn, Lily
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: Student-Athlete Compensation, Cost - Benefit Analysis, Strict Egalitarianism

description: The changing compensation rules in the NCAA regarding both NIL and Alston reflect a significant departure from traditional amateurism norms. While these changes aim to address long-standing concerns about fairness and exploitation, they also introduce new challenges and complexities. I attempt to draw a relationship between institutions’ values and objectives, their athletic and academic reputations, and the extent to which they exploit the new opportunities such changes bring. More specifically, I closely examine the different approaches institutions of all demographics have taken concerning the NIL and Alston spaces. Furthermore, using different liberal theories of justice, I seek to better understand the implications of the changed compensation rules for student-athletes on economic welfare. I find that the new regulations had two effects – a “pecuniary” effect (redistribution) and a “real” or “efficiency” effect (causing an increase in aggregate economic welfare). Moreover, I argue that the new rules are improvements as they benefit the least well-off.
title: Ein frühes Lackkabinett im Schloß Rastatt wiedergewonnen
Creators: name: Stopfel, Wolfgang
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 6, Nr. 2 (1977), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4