cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurement of CP-violating asymmetries in B^0 -> (rho pi)^0 decays using a time-dependent Dalitz plot analysis
Creators: name: BABAR Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present results for a time-dependent Dalitz plot measurement of CP-violating asymmetries in the mode B^0 -> pi^+ pi^- pi^0. The dataset is derived from the complete sample of 471 x 10^6 BBbar meson pairs collected with the BABAR detector at the PEP-II asymmetric-energy e^+e^- collider at the SLAC National Accelerator Laboratory operating on the Upsilon(4S) resonance. We extract parameters describing the time-dependent B^0 -> rho pi decay probabilities and CP asymmetries, including C = 0.016\pm0.059\pm0.036, DeltaC = 0.234\pm0.061\pm0.048, S = 0.053\pm0.081\pm0.034, and DeltaS = 0.054\pm0.082\pm0.039, where the uncertainties are statistical and systematic, respectively. We perform a two-dimensional likelihood scan of the direct CP-violation asymmetry parameters for B^0 -> rho^\pm pi^\mp decays, finding the change in chi^2 between the minimum and the origin (corresponding to no direct CP violation) to be Delta(chi^2)=6.42. We present information on the CP-violating parameter alpha in a likelihood scan that incorporates B^\pm -> rho pi measurements.
description: 28 pages, 11 PDF figures, submitted to Physical Review D
The Dynamics of Hybrid Metabolic-Genetic Oscillators
Creators: name: Reznik, Ed
name: Kaper, Tasso J.
name: Segre, Daniel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The synthetic construction of intracellular circuits is frequently hindered by a poor knowledge of appropriate kinetics and precise rate parameters. Here, we use generalized modeling (GM) to study the dynamical behavior of topological models of a family of hybrid metabolic-genetic circuits known as "metabolators." Under mild assumptions on the kinetics, we use GM to analytically prove that all explicit kinetic models which are topologically analogous to one such circuit, the "core metabolator," cannot undergo Hopf bifurcations. Then, we examine more detailed models of the metabolator. Inspired by the experimental observation of a Hopf bifurcation in a synthetically constructed circuit related to the core metabolator, we apply GM to identify the critical components of the synthetically constructed metabolator which must be reintroduced in order to recover the Hopf bifurcation. Next, we study the dynamics of a re-wired version of the core metabolator, dubbed the "reverse" metabolator, and show that it exhibits a substantially richer set of dynamical behaviors, including both local and global oscillations. Prompted by the observation of relaxation oscillations in the reverse metabolator, we study the role that a separation of genetic and metabolic time scales may play in its dynamics, and find that widely separated time scales promote stability in the circuit. Our results illustrate a generic pipeline for vetting the potential success of a potential circuit design, simply by studying the dynamics of the corresponding generalized model.
Observation of the local structure of landau bands in a disordered conductor
Creators: name: Schmidt, T.
name: Haug, Rolf J.
name: Fal'ko, V.I.
name: V. Klitzing, K.
name: Förster, A.
name: Lüth, H.
Publisher: name: College Park, MD : American Physical Society
Year: 1997
Subjects: subject: Calculations
subject: Carrier concentration
subject: Electron resonance
subject: Electron tunneling
subject: Electronic density of states
subject: Fermi level
subject: Magnetic field effects
subject: Semiconducting gallium arsenide
subject: Spectrometers
subject: Electron waves
subject: Impurity states
subject: Inelastic processes
subject: Landau bands
subject: Landau quantization
subject: Quantum interference
subject: Band structure
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The local density of states of heavily doped GaAs is explored at high magnetic fields, where only a single or few Landau bands are occupied. Our experiment is based on resonant tunneling through impurity states and images the local density of states both below and above the Fermi level. Fan-type mesoscopic fluctuations are observed in the energy-magnetic-field plane, which we attribute to the interplay of Landau quantization and quantum interference of scattered electron waves in the disordered conductor. Our conclusion is supported by the suppression of the fluctuations high above the Fermi level, where dephasing due to inelastic processes is as fast as elastic scattering.
The History of the Square Kilometre Array (SKA) - Born Global
Creators: name: Ekers, Ron
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A brief review of the history of the Square Kilometre Array (SKA) from its pre 1990 roots and the global vision which emerged, at the VLA 10th anniversary meeting in 1990, to the major international project we have today. I comment on the evolution of the science and the technology that has occurred during this period. Finally, we can ask: "What have we learned?"
description: Conference: Resolving the Sky - Radio Interferometry: Past, Present and Future Manchester, UK April 17-20, 2012
How heterogeneous are the determinants of total factor productivity in manufacturing sectors? Panel-data evidence from vietnam
Creators: name: Ngo, Quang-Thanh
name: Tran, Qang-Van
name: Nguyen, Tien-Dung
name: Nguyen, Tung-Thanh
Publisher: name: Basel : MDPI AG
Year: 2020
Subjects: subject: Heterogeneity
subject: Manufacturing sector
subject: Panel causality
subject: Total factor productivity
subject: Vietnam
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: One of the remaining challenges in explaining differences in total factor productivity is heterogeneity between sectors and within a specific sector in terms of labor and capital. This paper employs the generalized method of moments (GMM) to identify factors that affect total factor productivity across 21 manufacturing sectors and to clarify the heterogeneous determinants of total factor productivity within manufacturing sectors for the period 2010–2015. Our estimations show that large firms have significantly greater total factor productivity levels than small firms in some fragmentations of firms in terms of both labor and total capital and in some manufacturing sectors. It is suggested that firm characteristics should be considered by the government in establishing relevant policies for enhancing firm productivity.
⚘Semiotics and Dark Web Memes ☀ Robert W. Gehl
Creators: name: Gehl, Robert W.
name: Passarini, William
Publisher: name: Instituto de Estudos Filosóficos
Year: 2022
Subjects: Actor-network theory
Culture
Dark web
Deep web
Immateriality
Internet memes
Marianas web
Myths
Politics
Post-truth
Spatial metaphors
Semiotics
Surface web
Tor

description: Pop up... and lighten the gloom of the magical underworld of folk culture fermenting through Tor's onion sites.

This event, chaired by William Passarini (Mansarda Acesa), is part of the activities of the 2022 International Open Seminar on Semiotics: a Tribute to John Deely on the Fifth Anniversary of His Passing, cooperatively organized by the Institute for Philosophical Studies of the Faculty of Arts and Humanities of the University of Coimbra, the Lyceum Institute, the Deely Project, Saint Vincent College, the Iranian Society for Phenomenology at the Iranian Political Science Association, the International Association for Semiotics of Space and Time, the Institute for Scientific Information on Social Sciences of the Russian Academy of Sciences, the Semiotic Society of America, the American Maritain Association, the International Association for Semiotic Studies, the International Society for Biosemiotic Studies, the International Center for Semiotics and Intercultural Dialogue, Moscow State Academic University for the Humanities and the Mansarda Acesa with the support of the FCT - Foundation for Science and Technology, I.P., of the Ministry of Science, Technology and Higher Education of the Government of Portugal under the UID/FIL/00010/2020 project.

***

Robert W. Gehl is a Fulbright scholar and award-winning author whose research focuses on contemporary communication technologies. He is currently the Ontario Research Chair in Digital Governance for Social Justice at York University. He has published over two dozens articles in journals such as New Media & Society, Communication Theory, Social Media + Society, and Media, Culture and Society. His books include Reverse Engineering Social Media, which won the Nancy Baym Book Award from the Association of Internet Researchers, and Weaving the Dark Web, published by the MIT Press in 2018, and Social Engineering, forthcoming from MIT Press in 2022.

***

Homepage: https://www.uc.pt/fluc/uidief/act/io2s
Auditorium: https://www.uc.pt/fluc/uidief/act/io2s/auditorium

***

Technical support assured by Robert Junqueira.
The cover image for the video was designed by Zahra Soltani.
Aminosäuren und aromatische Acyloine bei Wildhefen und Saccharomyces cerevisae
Creators: name: Richter, Ulla
Publisher: name: Hannover : Universität
Year: 1998
Subjects: subject: Volatile flavor compounds
subject: unconventional yeasts
subject: amino acids
subject: aromatic acyloins
subject: food
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Three-dimensional Brownian motion and the golden ratio rule
Creators: name: Glover, Kristoffer
name: Hulley, Hardy
name: Peskir, Goran
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Let $X=(X_t)_{t\ge0}$ be a transient diffusion process in $(0,\infty)$ with the diffusion coefficient $σ>0$ and the scale function $L$ such that $X_t\rightarrow\infty$ as $t\rightarrow \infty$, let $I_t$ denote its running minimum for $t\ge0$, and let $θ$ denote the time of its ultimate minimum $I_{\infty}$. Setting $c(i,x)=1-2L(x)/L(i)$ we show that the stopping time \[τ_*=\inf\{t\ge0\vert X_t\ge f_*(I_t)\}\] minimizes $\mathsf{E}(\vertθ-τ\vert-θ)$ over all stopping times $τ$ of $X$ (with finite mean) where the optimal boundary $f_*$ can be characterized as the minimal solution to \[f'(i)=-\frac{σ^2(f(i))L'(f(i))}{c(i,f(i))[L(f(i))-L(i)]}\int_i^{f(i)}\frac{c_i'(i,y)[L(y) -L(i)]}{σ^2(y)L'(y)}\,dy\] staying strictly above the curve $h(i)=L^{-1}(L(i)/2)$ for $i>0$. In particular, when $X$ is the radial part of three-dimensional Brownian motion, we find that \[τ_ *=\inf\biggl\{t\ge0\Big\vert\frac{X_t-I_t}{I_t}\geφ\biggr\},\] where $φ=(1+\sqrt{5})/2=1.61\ldots$ is the golden ratio. The derived results are applied to problems of optimal trading in the presence of bubbles where we show that the golden ratio rule offers a rigorous optimality argument for the choice of the well-known golden retracement in technical analysis of asset prices.
description: Published in at http://dx.doi.org/10.1214/12-AAP859 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Superdeformed oblate superheavy nuclei in the self-consistent approach
Creators: name: Prochniak, L.
name: Staszczak, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The HFB self-consistent method has been applied to study the properties of several neutron deficient superheavy nuclei with Z=120-124, N=160-168. Their distinctive feature is the existence of minima of the total HFB energy for strongly deformed, oblate shapes. The self-consistent results agree quite remarkably with those currently obtained by using microscopic-macroscopic method.
description: Presented at the Zakopane School on Nuclear Physics "Extremes of the Nuclear Landscape", August 27 - September 2, 2012, Zakopane, Poland
title: Ambiguitätstoleranz: mehr als das Aushalten von Widersprüchen
Creators: name: Buchberger, Sita Sophia Judith Ira
Year: 2023

description: Diese Masterarbeit untersucht das Konzept Ambiguitätstoleranz und geht der Frage nach, welche Bedeutung Ambiguitätstoleranz für Bildner*innen in der rassismuskritischen, politischen Bildung in der Postmigrantischen Gesellschaft hat. Um diese Frage zu beantworten, wird zunächst ein interdisziplinärer Blick auf aktuelle Forschungen in dem Bereich geworfen und dieser durch gesellschaftstheoretische, sowie bildungstheoretische Überlegungen ergänzt. In Folge werden anhand von qualitativen Interviews sowohl das vorliegende Verständnis als auch die Bedeutung für die Umsetzung in der Bildungspraxis herausgearbeitet. Es werden sieben Personen aus der rassismuskritischen Bildungsarbeit mittels leitfadengestützten, problemzentrierten Interviews befragt. Anhand der Analyse konnten die Teilbereiche Bezüge zur Forschungsliteratur, Wahrnehmung und Umgang mit Emotionen, die Grenzen der Erkenntnis, Unvorhersehbarkeit, Grenzen von Ambiguitätstoleranz, Haltung, die Rolle der Bildner*innen und notwendige und ermöglichende Rahmenbedingungen identifiziert und diskutiert werden. Die Ergebnisse wurden dargestellt und Vorschläge für weitere Forschungen erläutert.
description: This Master's thesis examines the concept of tolerance of ambiguity and explores the question of what significance tolerance of ambiguity has for educators in political education critical of racism in a post-migrant society. In order to answer this question, an interdisciplinary look at current research in the field was first taken, and this was supplemented by considerations of social theory and educational theory. Subsequently, qualitative interviews were used to work out both the existing understanding and the significance for implementation in educational practice. Seven people from the field of racism-critical education were interviewed using guideline-based, problem-centred interviews. On the basis of the analysis, the sub-areas of references to research literature, perception and dealing with emotions, the limits of knowledge, unpredictability, limitations of tolerance of ambiguity, attitude, the role of the educators and necessary and enabling framework conditions could be elaborated and discussed. The results were presented and suggestions for further research were outlined.
Relative specific heat at v = 1/2 measured in a phonon absorption experiment
Creators: name: Schulze-Wischeler, F.
name: Hohls, Frank
name: Zeitler, U.
name: Reuter, D.
name: Wieck, A.D.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 2005
Subjects: subject: 2DES
subject: phonon absorption
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In general it is far from being straightforward to measure the specific heat of a single two-dimensional electron system directly, since it is strongly dominated by the contribution of the substrate. Using a time-resolved phonon absorption technique, we have directly measured the specific heat C of composite fermions at half Landau level filling v = 1/2. We find a nearly linear dependence of C on temperature down to T = 0.1 K. © 2005 American Institute of Physics.
Molecular motors robustly drive active gels to a critically connected state
Creators: name: Alvarado, Jose
name: Sheinman, Michael
name: Sharma, Abhinav
name: MacKintosh, Fred C.
name: Koenderink, Gijsje H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Living systems often exhibit internal driving: active, molecular processes drive nonequilibrium phenomena such as metabolism or migration. Active gels constitute a fascinating class of internally driven matter, where molecular motors exert localized stresses inside polymer networks. There is evidence that network crosslinking is required to allow motors to induce macroscopic contraction. Yet a quantitative understanding of how network connectivity enables contraction is lacking. Here we show experimentally that myosin motors contract crosslinked actin polymer networks to clusters with a scale-free size distribution. This critical behavior occurs over an unexpectedly broad range of crosslink concentrations. To understand this robustness, we develop a quantitative model of contractile networks that takes into account network restructuring: motors reduce connectivity by forcing crosslinks to unbind. Paradoxically, to coordinate global contractions, motor activity should be low. Otherwise, motors drive initially well-connected networks to a critical state where ruptures form across the entire network.
description: Main text: 21 pages, 5 figures. Supplementary Information: 13 pages, 8 figures
ICABL: An Inclusive Community for the Assessment of Biochemistry and Molecular Biology (BMB) Learning (RCN-UBE Introduction)
Creators: name: Dries, Daniel
name: Moore, Victoria
name: Cortes, Kimberly
Publisher: name: QUBES Educational Resources
Year: 2023

description: ICABL is an inclusive and collaborative community that supports the professional development of biochemistry and molecular biology scientist-educators committed to the enhancement of student learning through the development of effective, equitable assessment strategies.
Mathematical structure of three - dimensional (3D) Ising model
Creators: name: Zhang, Zhi-dong
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: An overview of the mathematical structure of the three-dimensional (3D) Ising model is given, from the viewpoints of topologic, algebraic and geometric aspects. By analyzing the relations among transfer matrices of the 3D Ising model, Reidemeister moves in the knot theory, Yang-Baxter and tetrahedron equations, the following facts are illustrated for the 3D Ising model: 1) The complexified quaternion basis constructed for the 3D Ising model represents naturally the rotation in a (3 + 1) - dimensional space-time, as a relativistic quantum statistical mechanics model, which is consistent with the 4-fold integrand of the partition function by taking the time average. 2) A unitary transformation with a matrix being a spin representation in 2^(nlo)-space corresponds to a rotation in 2nlo-space, which serves to smooth all the crossings in the transfer matrices and contributes as the non-trivial topologic part of the partition function of the 3D Ising model. 3) A tetrahedron relation would ensure the commutativity of the transfer matrices and the integrability of the 3D Ising model, and its existence is guaranteed also by the Jordan algebra and the Jordan-von Neumann-Wigner procedures. 4) The unitary transformation for smoothing the crossings in the transfer matrices changes the wave functions by complex phases Φx, Φy, and Φz. The relation with quantum field and gauge theories, physical significance of weight factors are discussed in details. The conjectured exact solution is compared with numerical results, and singularities at/near infinite temperature are inspected. The analyticity in β = 1/(kB T) of both the hard-core and Ising models has been proved for β > 0, not for β = 0. Thus the high-temperature series cannot serve as a standard for judging a putative exact solution of the 3D Ising model.
description: 53 pages; 0 figures
title: A longitudinal study of growth and nutritional status of Glasgow infants from birth to 2 years
Creators: name: Savage, Shirley-Anne Hood
Publisher: name: University of Glasgow
Year: 1999
Subjects: subject: Nutrition.

description: A longitudinal study was undertaken in Glasgow to assess the growth and nutritional status of a representative sample of 127 healthy infants, born in 1992-3, from birth-2 years. Weight, length, triceps and subscapular skinfold, head, mid-upper arm (MUAC), calf and thigh circumference were measured monthly till 6 months then at 9, 12, 18 and 24 months. Body mass index, sum of skinfolds and mid-arm muscle circumference (MAMC) were obtained from the above measurements. Aims 1. To assess and describe growth and nutritional status of Glasgow infants and to compare with other data sets. 2. To identify factors which influence growth and nutritional status. 3. To assess feeding and weaning practice, compare with other UK data sets, and to identify factors influencing feeding and weaning practice. Comparison with reference values For weight in the first 4-5 months both boys and girls had values which were substantially greater than 'Tanner and Whitehouse' standards (Tanner et al, 1966). At 2 months distributions of Glasgow infants were substantially positively shifted when compared with 'Tanner and Whitehouse' data for both boys and girls. Weight was more similar to the 'UK 1990' reference values (Freeman et al, 1995) and the 'Revised UK 1990' references (Freeman et al, 1996). Growth in the second six months of life was more similar for Glasgow infants and the other data sets. By 2 years, however, Glasgow boys were heavier than 'Tanner and Whitehouse' and the 'UK 1990' and 'Revised UK 1990' references (Savage et al, 1996a; Savage et al, 1998b). For length, differences between Glasgow infants and 'Tanner and Whitehouse' and 'UK 1990' references were much less marked. The most noticeable difference was for Glasgow girls at 3 months who had a lower mean value when compared with 'UK 1990' both initial and revised data. Length of Glasgow girls was negatively shifted compared with 'UK 1990' references for girls. However, at two years both boys and girls from the Glasgow sample were longer than 'Tanner and Whitehouse' and 'UK 1990' references (Savage et al, 1998b; Savage et al, 1996a). Triceps and subscapular skinfolds were compared with the older 'Tanner and Whitehouse' (Tanner and Whitehouse, 1975) and more recent data from Cambridge (T.J. Cole personal communication). For both triceps and subscapular skinfolds Glasgow infants had substantially lower values when compared with 'Tanner and Whitehouse' but were much closer to the Cambridge values although slightly higher. This difference is probably due to differences in feeding and weaning practice between samples. The 'Tanner and Whitehouse' data were collected in the late 1960s when breastfeeding rates were low and introduction of solids extremely early. The formulas used were less modified and more energy dense than to-day. The Cambridge sample had high breast feeding rates and fairly late introduction of solid food when compared with Glasgow infants.
Polaronic effects in optical transitions of single InAs/AlAs quantum dots
Creators: name: Sarkar, D.
name: Van Der Meulen, H.P.
name: Calleja, J.M.
name: Becker, J.M.
name: Haug, Rolf J.
name: Pierz, Klaus
Publisher: name: College Park, MD : American Institute of Physics
Year: 2005
Subjects: subject: quantum dots
subject: optical transition
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Optical transitions in self-assembled InAs/AlAs quantum dots were investigated by photoluminescence and photoluminescence excitation spectroscopy. In photoluminescence we found below about 1.8 eV emission from quantum dots whereas above ∼1.8 eV electrons from the AlAs X-band are involved. Photoluminescence excitation spectra show polaron states with a phonon energy of 31 meV of an individual InAs dot. © 2005 American Institute of Physics.
D1.5. Short report on main outcomes and participating organisations of the workshop on understanding of rapid adjustment processes
Creators: name: CONSTRAIN
Publisher: name: Zenodo
Year: 2022
Subjects: rapid adjustment

description: Work Package: WP1
Deliverable number: D1.5
Deliverable title: Short report on main outcomes and participating organisations of the workshop on understanding of rapid adjustment processes
Cite as:
J. Quaas. 2022. CONSTRAIN Workshop on rapid adjustment: Workshop Report. The CONSTRAIN Project. DOI: 10.5281/zenodo.10124964.
Level anticrossings in quantum dots
Creators: name: Könemann, J.
name: Räsänen, E.
name: Puska, M.J.
name: Nieminen, R.M.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Institute of Physics
Year: 2005
Subjects: subject: quantum dots
subject: single-electron transport
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We have studied the single-electron transport spectrum of a localized level embedded into a double-barrier resonant tunneling structure. The experimental spectrum shows clear deviations from the Fock-Darwin model indicating a broken circular symmetry. We interprete our observations in terms of the existence of an additional multiple-charged impurity in the vicinity of the quantum dot. © 2005 American Institute of Physics.
title: Hans Düllwuttel un all, wat mehr is
Creators: name: Hampe, Theodor
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Hans Düllwuttel un all, wat mehr is. Von Enno Hektor. Neu herausgegeben von F. W. v. Neß. Mit einem Lebensbilde des Dichters von Fr. von Harslo. Emden 1905. Verlag von W. Schwalbe. 196 S. 80
title: Die Denkmäler der deutschen Bildhauerkunst
Creators: name: Josephi, W.
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Die Denkmäler der deutschen Bildhauerkunst. Herausgegeben von Dr. Georg Dehio, Professor und Direktor des kunstgeschichtl. Instituts der Universität Straßburg, und Dr. Gustav v. Bezold , I. Direktor des Germanischen Nationalmuseums in Nürnberg. 4 Serien von zusammen 20 Lieferungen von je 20 Tafeln im Format 32 x 48 cm. Verlegt bei Ernst Wasmuth , A.-G., Berlin
Structure of a model salt bridge in solution investigated with 2D-IR spectroscopy
Creators: name: Huerta-Viga, Adriana
name: Domingos, Sérgio R.
name: Amirjalayer, Saeed
name: Woutersen, Sander
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Salt bridges are known to be important for the stability of protein conformation, but up to now it has been difficult to study their geometry in solution. Here we characterize the spatial structure of a model salt bridge between guanidinium (Gdm+) and acetate (Ac-) using two-dimensional vibrational (2D-IR) spectroscopy. We find that as a result of salt bridging the infrared response of Gdm+ and Ac- change significantly, and in the 2D-IR spectrum, salt bridging of the molecules appears as cross peaks. From the 2D-IR spectrum we determine the relative orientation of the transition-dipole moments of the vibrational modes involved in the salt bridge, as well as the coupling between them. In this manner we reconstruct the geometry of the solvated salt bridge.
title: 5000 Jahre alte Pfahlbaufunde. Dokumentation und Visualisierung von 3-D-Messdaten
Creators: name: Ebinger-Rist, Nicole
name: Schlichtherle, Helmut
name: Steffen, Markus
Publisher: name: University Library Heidelberg
Year: 2016

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 45, Nr. 1 (2016), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A Strategic AI Procedure Model For Implementing Artificial Intelligence
Creators: name: Walter, Tim
name: Bremer, Martin
name: Kaminski, Lars
name: Stich, Volker
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Artificial Intelligence
subject: Strategy
subject: Framework
subject: Procedure Model
subject: Digital Transformation
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: For most industries, Artificial Intelligence (AI) holds substantial potentials. In the last decades, the extent of data created worldwide is exponentially increasing, and this trend is likely to continue. However, despite the prospects, many companies are not yet using AI at all or not generating added value. Often, an AI project does not exceed its pilot phase and is not scaled up. The problems to create value from AI applications in companies are manifold, especially since AI itself is diverse and there is no ‘one size fits all’ approach. One often stated obstacle, why many AI projects fail, is a missing AI strategy. This leads to isolated solutions, which do not consider synergies, scalability and seldom result in added value for the company. To create a company-specific AI strategy with a top-down approach, a generic but holistic framework is needed. This paper proposes a strategic AI procedure model that enables companies to define a specific AI strategy for successfully implementing AI solutions. In addition, we demonstrate in this paper how we apply the introduced strategic AI procedure model on an AI-based flexible monitoring and regulation system for power distribution grid operators in the context of an ongoing research project.
title: Mental models zu Pflanzen von Schüler*innen der 1. bis zur 12. Schulstufe
Creators: name: Eichler, Manuel
Year: 2023

description: Pflanzen werden sowohl in der alltäglichen Wahrnehmung der Menschen als auch im Biologieunterricht häufig vernachlässigt. Der Begriff „plant blindness“ beschreibt ebendiese verminderte Beachtung von Pflanzen und die daraus folgenden vereinfachten Vorstellungen von Pflanzen. Mithilfe von Zeichnungen können „mental models“, die eine Repräsentation der inneren Vorstellung sind, wiedergegeben werden und einen Hinweis geben, ob plant blindness ausgeprägt ist. In dieser Studie werden mental models von 162 Schüler*innen im Alter von 6-18 Jahren zu den Begriffen „Pflanze“, „Baum“, „Blume“ und „Gras“ durch Zeichnungen ermittelt, analysiert und miteinander verglichen. Die Ergebnisse zeigen, wie mental models zu den genannten Begriffen zeichnerisch dargestellt werden, und welche Merkmale in diesen vermehrt auftreten. Statistische Analysen zeigen, dass der Begriff Baum gut widerspiegelt, wie detailliert Pflanzen in der Natur wahrgenommen und in Zeichnungen dargestellt werden. Die Untersuchung zeigt weiters, dass mental models in verschiedenen Altersstufen ähnlich sind. Allerdings zeigen sich bei bestimmten Merkmalen altersabhängige Auffälligkeiten und Veränderungen.
description: Plants usually are neglected in the daily perception of people as well as in biology lessons. The term “plant blindness” describes this diminished consideration of plants and the resulting simplified imagination. Using drawings, “mental models” can give an indication whether plant blindness exists. “Mental models” are a representation of the inner imagination. The present study identifies, analyses and compares mental models for the terms “plant”, “tree”, “flower” and “grass” of 162 pupils aged 6 – 18 years. The results show the mental models of the mentioned terms and which characteristics mostly occur. Statistical analyses show that the term tree reflects well how detailed plants are perceived in nature and represented in drawings. Moreover, the study shows that mental models are similar at different ages. However, age-dependent conspicuousness and changes were found in certain characteristics.
An evolving compact jet in the black hole X-ray binary MAXI J1836-194
Creators: name: Russell, D. M.
name: Russell, T. D.
name: Miller-Jones, J. C. A.
name: O'Brien, K.
name: Soria, R.
name: Sivakoff, G. R.
name: Slaven-Blair, T.
name: Lewis, F.
name: Markoff, S.
name: Homan, J.
name: Altamirano, D.
name: Curran, P. A.
name: Rupen, M. P.
name: Belloni, T. M.
name: Bel, M. Cadolle
name: Casella, P.
name: Corbel, S.
name: Dhawan, V.
name: Fender, R. P.
name: Gallo, E.
name: Gandhi, P.
name: Heinz, S.
name: Koerding, E. G.
name: Krimm, H. A.
name: Maitra, D.
name: Migliari, S.
name: Remillard, R. A.
name: Sarazin, C. L.
name: Shahbaz, T.
name: Tudose, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report striking changes in the broadband spectrum of the compact jet of the black hole transient MAXI J1836-194 over state transitions during its discovery outburst in 2011. A fading of the optical-infrared (IR) flux occurred as the source entered the hard-intermediate state, followed by a brightening as it returned to the hard state. The optical-IR spectrum was consistent with a power law from optically thin synchrotron emission, except when the X-ray spectrum was softest. By fitting the radio to optical spectra with a broken power law, we constrain the frequency and flux of the optically thick/thin break in the jet synchrotron spectrum. The break gradually shifted to higher frequencies as the source hardened at X-ray energies, from ~ 10^11 to ~ 4 x 10^13 Hz. The radiative jet luminosity integrated over the spectrum appeared to be greatest when the source entered the hard state during the outburst decay (although this is dependent on the high energy cooling break, which is not seen directly), even though the radio flux was fading at the time. The physical process responsible for suppressing and reactivating the jet (neither of which are instantaneous but occur on timescales of weeks) is uncertain, but could arise from the varying inner accretion disk radius regulating the fraction of accreting matter that is channeled into the jet. This provides an unprecedented insight into the connection between inflow and outflow, and has implications for the conditions required for jets to be produced, and hence their launching process.
description: Accepted to ApJ Letters
Fermi-edge singularities in transport through quantum dots
Creators: name: Frahm, Holger
name: Von Zobeltitz, Carsten
name: Maire, Niels
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Physical Society
Year: 2006
Subjects: subject: quantum dots
subject: FES
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the Fermi-edge singularity appearing in the current-voltage characteristics for resonant tunneling through a localized level at finite temperature. An explicit expression for the current at low temperature and near the threshold for the tunneling process is presented which allows to coalesce data taken at different temperatures to a single curve. Based on this scaling function for the current we analyze experimental data from a GaAs-AlAs-GaAs tunneling device with embedded InAs quantum dots obtained at low temperatures in high magnetic fields. © 2006 The American Physical Society.
Constraining a fourth generation of quarks: non-perturbative Higgs boson mass bounds
Creators: name: Bulava, John
name: Jansen, Karl
name: Nagy, Attila
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a non-perturbative determination of the upper and lower Higgs boson mass bounds with a heavy fourth generation of quarks from numerical lattice computations in a chirally symmetric Higgs-Yukawa model. We find that the upper bound only moderately rises with the quark mass while the lower bound increases significantly, providing additional constraints on the existence of a straight-forward fourth quark generation. We examine the stability of the lower bound under the addition of a higher dimensional operator to the scalar field potential using perturbation theory, demonstrating that it is not significantly altered for small values of the coupling of this operator. For a Higgs boson mass of $\sim125\mathrm{GeV}$ we find that the maximum value of the fourth generation quark mass is $\sim300\mathrm{GeV}$, which is already in conflict with bounds from direct searches.
description: 6 pages, 2 figures
Improved Search for $\bar ν_μ\rightarrow \bar ν_e$ Oscillations in the MiniBooNE Experiment
Creators: name: The MiniBooNE Collaboration
name: Aguilar-Arevalo, A. A.
name: Brown, B. C.
name: Bugel, L.
name: Cheng, G.
name: Church, E. D.
name: Conrad, J. M.
name: Dharmapalan, R.
name: Djurcic, Z.
name: Finley, D. A.
name: Ford, R.
name: Garcia, F. G.
name: Garvey, G. T.
name: Grange, J.
name: Huelsnitz, W.
name: Ignarra, C.
name: Imlay, R.
name: Johnson, R. A.
name: Karagiorgi, G.
name: Katori, T.
name: Kobilarcik, T.
name: Louis, W. C.
name: Mariani, C.
name: Marsh, W.
name: Mills, G. B.
name: Mirabal, J.
name: Moore, C. D.
name: Mousseau, J.
name: Nienaber, P.
name: Osmanov, B.
name: Pavlovic, Z.
name: Perevalov, D.
name: Polly, C. C.
name: Ray, H.
name: Roe, B. P.
name: Russell, A. D.
name: Shaevitz, M. H.
name: Spitz, J.
name: Stancu, I.
name: Tayloe, R.
name: Van de Water, R. G.
name: White, D. H.
name: Wickremasinghe, D. A.
name: Zeller, G. P.
name: Zimmerman, E. D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The MiniBooNE experiment at Fermilab reports results from an analysis of $\bar ν_e$ appearance data from $11.27 \times 10^{20}$ protons on target in antineutrino mode, an increase of approximately a factor of two over the previously reported results. An event excess of $78.4 \pm 28.5$ events ($2.8 σ$) is observed in the energy range $200
description: Submitted to PRL. Further information provided in arXiv:1207.4809
Creating that perfect graph using Matplotlib
Creators: name: Hilmi, Tariq
Publisher: name: F1000 Research Limited
Year: 2022

description: Using Python's plotting library Matplotlib to create 2D and 3D graphs for your research papers. How to modify them and change their style to be more accesible, visually pleasing, and fit your paper's style. In addition, you can generate plot frames to create videos using imageio.
Majorana Fermions in Periodically Driven Semiconductor-Superconductor Heterostructure
Creators: name: Wu, Chen-Cheng
name: Sun, Jiao
name: Huang, Fei-Jie
name: Li, Yun-De
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a new approach to create Majorana fermions at the edge of a periodically driven semiconductor-superconductor Heterostructure. We calculate the quasi-energy spectrum of the periodically driven Heterostructure by using the Floquet's theory. When the interaction between different Brillouin zones of quasi-energy is neglected, one Majorana fermion can be created at each edge of the Heterostructure when the ratio of driven amplitude and driven frequency is larger than a minimum. Furthermore, when the interaction between the nearest Brillouin zones of quasi-energy is considered, we restrict the condition of creating Majorana fermions above with a lower limit of the driven frequency. We also discuss the experimental protocol of creating Majorana fermions in the periodically driven Heterostructure.
Intensity fluctuations in bimodal micropillar lasers enhanced by quantum-dot gain competition
Creators: name: Leymann, H. A. M.
name: Hopfmann, C.
name: Albert, F.
name: Foerster, A.
name: Khanbekyan, M.
name: Schneider, C.
name: Höfling, S.
name: Forchel, A.
name: Kamp, M.
name: Wiersig, J.
name: Reitzenstein, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate correlations between orthogonally polarized cavity modes of a bimodal micropillar laser with a single layer of self-assembled quantum dots in the active region. While one emission mode of the microlaser demonstrates a characteristic s-shaped input-output curve, the output intensity of the second mode saturates and even decreases with increasing injection current above threshold. Measuring the photon auto-correlation function g^{(2)}(τ) of the light emission confirms the onset of lasing in the first mode with g^{(2)}(0) approaching unity above threshold. In contrast, strong photon bunching associated with super-thermal values of g^{(2)}(0) is detected for the other mode for currents above threshold. This behavior is attributed to gain competition of the two modes induced by the common gain material, which is confirmed by photon crosscorrelation measurements revealing a clear anti-correlation between emission events of the two modes. The experimental studies are in excellent qualitative agreement with theoretical studies based on a microscopic semiconductor theory, which we extend to the case of two modes interacting with the common gain medium. Moreover, we treat the problem by an extended birth-death model for two interacting modes, which reveals, that the photon probability distribution of each mode has a double peak structure, indicating switching behavior of the modes for the pump rates around threshold.
description: 11 pages, 5 figures, submitted to Phys. Rev. B
Generalized Weyl quantization on the cylinder and quantum phase
Creators: name: Przanowski, Maciej
name: Brzykcy, Przemysław
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Generalized Weyl quantization formalism for the cylindrical phase space $S^1 \times \mathbb{R}^1$ is developed. It is shown that the quantum observables relevant to the phase of linear harmonic oscillator or electromagnetic field can be represented within this formalism by the self-adjoint operators on the Hilbert space $L^2(S^1)$.
Observation of sequential spin flips in quantum rings
Creators: name: Räsänen, E.
name: Mühle, A.
name: Aichinger, M.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Physical Society
Year: 2011
Subjects: subject: spin flips
subject: quantum rings
subject: magnetic field
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We observe strong signatures of spin flips in quantum rings exposed to external magnetic fields in the Coulomb blockade regime. The signatures appear as a pattern of lines corresponding to local reduction of conductance, and they cover a large range of magnetic fields and number of electrons. The sequence of lines, as well as other features in the conductance, can be captured by many-electron calculations within density-functional theory. The calculations show that most lines in the pattern correspond to sequential spin flips between filling factors 2 and 1. We believe that the ability to probe individual spin flips provides an important step toward precise spin control in quantum ring devices. © 2011 American Physical Society.
Reinforcement Learning from Human Feedback: A Tutorial at ICML 2023
Creators: name: Lambert, Nathan
name: Ustalov, Dmitry
Publisher: name: Zenodo
Year: 2023
Subjects: reinforcement learning
human feedback
icml2023

description: Reinforcement learning from human feedback (RLHF) has dramatically improved the real-world performance and user experience of large machine learning models. Still, this approach has primarily been applied at a scale of compute and data curation that limits academic availability. In this tutorial, we will describe the general framework of RLHF and explain the technical procedures required to apply this framework. The tutorial begins with a detailed conceptual overview and continues with an explanation of human-in-the-loop data collection procedures used when scaling state-of-the-art systems.
High Speed, High Fidelity Detection of an Atomic Hyperfine Qubit
Creators: name: Noek, Rachel
name: Vrijsen, Geert
name: Gaultney, Daniel
name: Mount, Emily
name: Kim, Taehyun
name: Maunz, Peter
name: Kim, Jungsang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fast and efficient detection of the qubit state in trapped ion quantum information processing is critical for implementing quantum error correction and performing fundamental tests such as a loophole-free Bell test. In this work we present a simple qubit state detection protocol for a $^{171}$Yb$^+$ hyperfine atomic qubit trapped in a microfabricated surface trap, enabled by high collection efficiency of the scattered photons and low background photon count rate. We demonstrate average detection times of 10.5, 28.1 and 99.8\,$\upmu$s, corresponding to state detection fidelities of 99%, 99.85(1)% and 99.915(7)%, respectively.
description: 4 pages, 3 figures
Connecting Curves in Higher Dimensions
Creators: name: Byrne, Greg
name: Cebral, Juan
name: Gilmore, Robert
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Connecting curves have been shown to organize the rotational structure of strange attractors in three-dimensional dynamical systems. We extend the description of connecting curves and their properties to higher dimensions within the special class of differential dynamical systems. The general properties of connecting curves are derived and selection rules stated. Examples are presented to illustrate these properties for dynamical systems of dimension n=3,4,5.
description: 12 pages, 13 figures
PLATERO: calibration and analysis of GFP plate readers. Experimental data sets and test software
Creators: name: González-Cebrían, Alba
name: Borràs-Ferrís, Joan
name: Boada, Yadira
name: Vignoni, Alejandro
name: Ferrer, Alberto
name: Picó, Jesús
Publisher: name: Zenodo
Year: 2022
Subjects: Plate reader, Fluorescence measurements, GFP, Units Conversion Model, Measurement data standardization, Measurement System Analysis

description: Set of Matlab standard scripts and equivalent Live Editor scripts, and set of experimental GFP data files in Excel format from two different plate readers, used in the publication: PLATERO: A Calibration Protocol for Plate Reader Green Fluorescence Measurements Authors: Alba González-Cebrian, Joan Borras-Ferris, Yadira Boada, Alejandro Vignoni, Alberto Ferrer, and Jesus Pico Multivariate Statistical Engineering Group, Department of Applied Statistics and O.R. and Quality, Synthetic Biology and Biosystems Control Lab, Instituto de Automatica e Informatica Industrial, Universitat Politecnica de Valencia, Valencia, Spain Correspondence: SB2CLab, DISA, Building 5C, Universitat Politecnica de Valencia, Cami de Vera sn, 46022-Valencia, Spain, email: vignoni@isa.upv.es WARNING: Notice that to run the Matlab scripts, you must first install the PLATERO toolbox, available at https://github.com/sb2cl/PLATERO
description: This research was funded by MCIN/AEI/10.13039/501100011033, grant numbers PID2020-117271RB-C21 and PID2020-119262RB-I00, Generalitat Valenciana grants CIAICO/2021/159 and AICO/2021/111, and Universitat Politècnica de València grants PAID-01-17 (AGC) and PAID-10-21 (YB).
Mobilities and scattering times in decoupled graphene monolayers
Creators: name: Schmidt, H.
name: Lüdtke, T.
name: Barthold, P.
name: Haug, Rolf J.
Publisher: name: College Park, MD : American Physical Society
Year: 2010
Subjects: subject: graphene monolayer
subject: QHE
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Folded single-layer graphene forms a system of two decoupled monolayers being only a few angstroms apart. Using magnetotransport measurements we investigate the electronic properties of the two layers conducting in parallel. We show a method to obtain the mobilities for the individual layers despite them being jointly contacted. The mobilities in the upper layer are significantly larger than in the bottom one indicating weaker substrate influence. This is confirmed by larger transport and quantum scattering times in the top layer. Analyzing the temperature dependence of the Shubnikov-de Haas oscillations, effective masses and corresponding Fermi velocities are obtained yielding reduced values down to 66% in comparison to monolayers. © 2010 The American Physical Society.