cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling and Analysis Generic Interface for eXternal numerical codes (MAGIX)
Creators: name: Möller, T.
name: Bernst, I.
name: Panoglou, D.
name: Muders, D.
name: Ossenkopf, V.
name: Röllig, M.
name: Schilke, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The modeling and analysis generic interface for external numerical codes (MAGIX) is a model optimizer developed under the framework of the coherent set of astrophysical tools for spectroscopy (CATS) project. The MAGIX package provides a framework of an easy interface between existing codes and an iterating engine that attempts to minimize deviations of the model results from available observational data, constraining the values of the model parameters and providing corresponding error estimates. Many models (and, in principle, not only astrophysical models) can be plugged into MAGIX to explore their parameter space and find the set of parameter values that best fits observational/experimental data. MAGIX complies with the data structures and reduction tools of ALMA (Atacama Large Millimeter Array), but can be used with other astronomical and with non-astronomical data.
description: 12 pages, 15 figures, 2 tables, paper is also available at http://www.aanda.org/articles/aa/pdf/forth/aa20063-12.pdf
Secure Federated Learning for Cognitive Radio Sensing
Creators: name: Wasilewska, Malgorzata
name: Bogucka, Hanna
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper considers reliable and secure Spectrum Sensing (SS) based on Federated Learning (FL) in the Cognitive Radio (CR) environment. Motivation, architectures, and algorithms of FL in SS are discussed. Security and privacy threats on these algorithms are overviewed, along with possible countermeasures to such attacks. Some illustrative examples are also provided, with design recommendations for FL-based SS in future CRs.
description: 7 pages, 6 figures
Additive-State-Decomposition-Based Tracking Control for TORA Benchmark
Creators: name: Quan, Quan
name: Cai, Kai-Yuan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a new control scheme, called additive state decomposition based tracking control, is proposed to solve the tracking (rejection) problem for rotational position of the TORA (a nonlinear nonminimum phase system). By the additive state decomposition, the tracking (rejection) task for the considered nonlinear system is decomposed into two independent subtasks: a tracking (rejection) subtask for a linear time invariant (LTI) system, leaving a stabilization subtask for a derived nonlinear system. By the decomposition, the proposed tracking control scheme avoids solving regulation equations and can tackle the tracking (rejection) problem in the presence of any external signal (except for the frequencies at +1 or -1) generated by a marginally stable autonomous LTI system. To demonstrate the effectiveness, numerical simulation is given.
description: 19 pages
Nuclear correlation functions in lattice QCD
Creators: name: Detmold, William
name: Orginos, Kostas
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider the problem of calculating the large number of Wick contractions necessary to compute states with the quantum numbers of many baryons in lattice QCD. We consider a constructive approach and a determinant-based approach and show that these methods allow the required contractions to be performed in computationally manageable amount of time for certain choices of interpolating operators. Examples of correlation functions computed using these techniques are shown for the quantum numbers of the light nuclei, He, Be, C, O and Si.
description: 10 pages, 4 pdf figures
Evolution of Social Presence: Longitudinal Network Analyses of Online Learning Peer Interactions from a Social Learning Analytics Perspective
Creators: name: Castellanos Reyes, Daniela
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Curriculum and pedagogy theory and development
Educational technology and computing

description: Social presence positively influences the motivation, satisfaction, retention, and learning outcomes of online students. Although it is crucial for successful online learning experiences, little work has thoroughly examined the evolution of social presence over time and the influence of social presence on peer interaction. In other words, if social presence can be learned by interacting with others. This three-article dissertation study elucidates this gap by answering the overarching question: How does online students' social presence evolve over time to shape their online learning behaviors? Using stochastic-actor oriented models to reflect the dependence among learners in online collaborative learning communities, this dissertation investigated how learners' social presence evolved in learner-learner interaction resulting in two empirical studies and one conceptual framework. The first study explored social presence through clickstream interaction (e.g., number of replies received/sent in an online discussion) of 382 learners enrolled in a Massive Open Online Course. Three key findings from the study were: 1) dropout rates could be lowered if social presence affordances are used purposefully; 2) adding social media characteristics to online discussion boards, for example, "like" buttons, inhibits conversational behavior, and eventually, decreases achievement of learning outcomes; and 3) the "rich-get-richer" effect also applies to social presence, reinforcing highly active students' behavior and risking inactive online students to experience isolation. The second study used peer-nomination data (i.e., asking students who they interact with) and a scale to investigate the spread of social presence perceptions in online networks of students over three consecutive courses (n = 197). Although there was no evidence of social influence, online learners who nominated more peers are more likely to report higher social presence perceptions over time. Students were not more likely to share with those who showed similar levels of social presence. The "rich-get-richer effect" was observed in the incoming nominations of learners. The third study is a conceptual framework that integrates network theory and the online learning literature into a new perspective to analyze learners' online behaviors and interactions under the light of social presence theory. The proposed framework includes four main steps: 1) interaction, 2) social presence alignment, 3) unit of analysis definition, and 3) network statistics and inferential analysis selection. The findings of this dissertation improve educational practice by identifying behaviors that harm online social presence and providing specific actions for online instructors and instructional designers to promote social presence in online learning.
APOSTLE: Eleven Transit Observations of TrES-3b
Creators: name: Kundurthy, Praveen
name: Becker, Andrew C.
name: Agol, Eric
name: Barnes, Rory
name: Williams, Benjamin F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Apache Point Survey of Transit Lightcurves of Exoplanets (APOSTLE) observed eleven transits of TrES-3b over two years in order to constrain system parameters and look for transit timing and depth variations. We describe an updated analysis protocol for APOSTLE data, including the reduction pipeline, transit model and Markov Chain Monte Carlo analyzer. Our estimates of the system parameters for TrESb are consistent with previous estimates to within the 2σ confidence level. We improved the errors (by 10--30%) on system parameters like the orbital inclination ($i_{\text{orb}}$), impact parameter (b) and stellar density (ρ$_{\star}$) compared to previous measurements. The near-grazing nature of the system, and incomplete sampling of some transits, limited our ability to place reliable uncertainties on individual transit depths and hence we do not report strong evidence for variability. Our analysis of the transit timing data show no evidence for transit timing variations and our timing measurements are able to rule out Super-Earth and Gas Giant companions in low order mean motion resonance with TrES-3b.
description: 30 pages, 8 tables, 5 figures (submitted to ApJ, Sep 2012)
Reinhard Wolters, 'Tam diu Germania vincitur'. Römische Germanensiege und Germanensieg-Propaganda bis zum Ende des 1. Jahrhunderts n. Chr.
Creators: name: Schrömbges, Paul
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Reinhard Wolters, 'Tam diu Germania vincitur'. Römische Germanensiege und Germanensieg-Propaganda bis zum Ende des 1. Jahrhunderts n. Chr. Kleine Hefte der Münzsammlung an der Ruhr-Universität 10/11. Studienverlag Dr. Norbert Brockmeyer, Bochum 1989. 98 Seiten, 1 Karte im Anhang.
description: Bonner Jahrbücher, Bd. 191.1991(1992): Bonner Jahrbücher
Thomas Pekáry, Das römische Kaiserbildnis in Staat, Kult und Gesellschaft. Dargestellt anhand der Schriftquellen. Das Römische Herrscherbild, Band III 5
Creators: name: Stichel, Rudolf H. W.
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Thomas Pekáry, Das römische Kaiserbildnis in Staat, Kult und Gesellschaft. Dargestellt anhand der Schriftquellen. Das Römische Herrscherbild, Band III 5. Gebr. Mann Verlag, Berlin 1985. X, 165 Seiten.
description: Bonner Jahrbücher, Bd. 191.1991(1992): Bonner Jahrbücher
Connecting Schools with Large Research Infrastructures in Physics through Citizen Science
Creators: name: Chaniotakis, Emmanuel
name: Koslowsky, Jens
name: Sotiriou, Sofoklis
Publisher: name: Zenodo
Year: 2020

description: Presentation delivered at the 'Knowledge for Change: A decade of Citizen Science (2020-2030) in support of the SDGs' conference.
A. Cambitoglou, A. Birchall, J. J. Coulton und J. R. Green, Zagora 2. Excavation of a Geometrie Town on the Island of Andros. Evcavation season 1969
Creators: name: Reinholdt, Claus
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: A. Cambitoglou, A. Birchall, J. J. Coulton und J. R. Green, Zagora 2. Excavation of a Geometrie Town on the Island of Andros. Evcavation season 1969. Study season 1969-1970. Βιβλιοϑήκη τηϛ εν Αϑήναιϛ αρχαιοϒικήϛ εταιρείαϛ, Band 105. Athen 1988. Textband mit 272 Seiten, 26 Abbildungen, Tafelband mit 293 Tafeln.
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
A. Simon Esmonde Cleary, The Ending of Roman Britain
Creators: name: Haalebos, Jan Kees
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: A. Simon Esmonde Cleary, The Ending of Roman Britain. Verlag B. T. Batsford, London 1989. 242 Seiten, 43 Abbildungen, 11 Tafeln
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
Deep reinforcement learning applied to an assembly sequence planning problem with user preferences
Creators: name: Neves, Miguel
name: Neto, Pedro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deep reinforcement learning (DRL) has demonstrated its potential in solving complex manufacturing decision-making problems, especially in a context where the system learns over time with actual operation in the absence of training data. One interesting and challenging application for such methods is the assembly sequence planning (ASP) problem. In this paper, we propose an approach to the implementation of DRL methods in ASP. The proposed approach introduces in the RL environment parametric actions to improve training time and sample efficiency and uses two different reward signals: (1) user's preferences and (2) total assembly time duration. The user's preferences signal addresses the difficulties and non-ergonomic properties of the assembly faced by the human and the total assembly time signal enforces the optimization of the assembly. Three of the most powerful deep RL methods were studied, Advantage Actor-Critic (A2C), Deep Q-Learning (DQN), and Rainbow, in two different scenarios: a stochastic and a deterministic one. Finally, the performance of the DRL algorithms was compared to tabular Q-Learnings performance. After 10,000 episodes, the system achieved near optimal behaviour for the algorithms tabular Q-Learning, A2C, and Rainbow. Though, for more complex scenarios, the algorithm tabular Q-Learning is expected to underperform in comparison to the other 2 algorithms. The results support the potential for the application of deep reinforcement learning in assembly sequence planning problems with human interaction.
SÍNDROME DE BURNOUT
Creators: name: ZUCCO, BERNARDO
Publisher: name: Zenodo
Year: 2023
Subjects: saúde
qualidade de vida
Burnout

description: Cartilha de informação de saúde criada pelo residente de Medicina de Família e Comunidade da UNIJUÍ em parceria com o CEREST de Ijuí com o intuito de levar informação técnica para os trabalhadores com fatores de risco para desenvolver a Síndrome de Burnout, bem como mostrar como proceder nos casos suspeitos.
WILL SPACING RETRACTIONS MODULATE THE CONTINUED INFLUENCE EFFECT?
Creators: name: Arreola, Hailey
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Cognition
Memory and attention

description: Globally, the misinformation crisis exposed the need for cognitive researchers to investigate interventions that will mitigate the influence of misinformation within memory. One proposed solution is a retraction, whereby misinformation is indicated to be inaccurate. Previous studies have demonstrated that providing a retraction after misinformation may reduce references to misinformation. The continued reliance on misinformation even after it has been corrected is known as the continued influence effect (CIE). It is unclear whether repeated retractions and the spacing of repeated retractions can reduce the CIE. In the present study, two experiments were conducted to investigate whether spacing repeated retractions among news messages would be more effective at reducing the CIE compared to massing retractions. Both experiments exposed participants to a news story containing misinformation. Each experiment included four retraction conditions: no retraction, a single retraction, or repeated retractions that were spaced or massed. In Experiment 1, a single retraction reduced reliance on misinformation, but we did not observe an additional benefit of repeated retractions when there were two retractions. In Experiment 2, we provided participants with three repeated retractions. Using this stronger manipulation, repeated retractions reduced references to misinformation compared to a single retraction, but there was no benefit of spacing them out. Collectively, our results suggest that repeating corrective messages can help reduce references to misinformation, with no supporting evidence that it matters how the repetitions are organized.
Multi-photon quantum interference in a multi-port integrated photonic device
Creators: name: Metcalf, Benjamin J.
name: Thomas-Peter, Nicholas
name: Spring, Justin B.
name: Kundys, Dmytro
name: Broome, Matthew A.
name: Humphreys, Peter
name: Jin, Xian-Min
name: Barbieri, Marco
name: Kolthammer, W. Steven
name: Gates, James C.
name: Smith, Brian J.
name: Langford, Nathan K.
name: Smith, Peter G. R.
name: Walmsley, Ian A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Increasing the complexity of quantum photonic devices is essential for many optical information processing applications to reach a regime beyond what can be classically simulated, and integrated photonics has emerged as a leading platform for achieving this. Here, we demonstrate three-photon quantum operation of an integrated device containing three coupled interferometers, eight spatial modes and many classical and nonclassical interferences. This represents a critical advance over previous complexities and the first on-chip nonclassical interference with more than two photonic inputs. We introduce a new scheme to verify quantum behaviour, using classically characterised device elements and hierarchies of photon correlation functions. We accurately predict the device's quantum behaviour and show operation inconsistent with both classical and bi-separable quantum models. Such methods for verifying multiphoton quantum behaviour are vital for achieving increased circuit complexity. Our experiment paves the way for the next generation of integrated photonic quantum simulation and computing devices.
description: 7 pages, 4 figures
ЦАП для протонного магнитометра ММП-203
Creators: name: В.В., Любимов
Publisher: name: Zenodo
Year: 1991
Subjects: магнитное поле, магнитные измерения, магнитометры, протонные магнитометры, цифро-аналоговый преобразователь

description: В работе (в предложении) дано описание конструкции и схемы цифро-аналогового преобразователя (ЦАП), который предназначен для согласования цифрового выхода протонного магнитометра ММП-203 с аналоговым регистратором (самопишущим потенциометром). Это устройство позволяет производить фиксацию получаемой магнитометром информации на бумажную диаграммную ленту при проведении продолжительных обсерваторских и экспедиционных исследований. На данное рационализаторское предложение получено официальное Удостоверение зарегистрированное в Патентном отделе ИЗМИРАН СССР 11.01.1991 г. под №1/471.
High magnetoresistance in graphene nanoribbon heterojunction
Creators: name: Kumar, S. Bala
name: Jalil, M. B. A.
name: Tan, S. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show a large magnetoresistance(MR) effect in a graphene heterostructure consisting of an metallic(M) and semiconductor(SC)-type armchair-graphene-nanoribbon(aGNR). In the heterostructure, the transmission across the first subband of the SC-aGNR and M-aGNR is forbidden under zero magnetic-field, due to the orthogonality of the wavefunctions. A finite magnetic-field introduces the quantum hall-like effect, which distorts the wavefunctions. Thus, a finite transmission occurs across the heterojunction, giving rise to a large MR effect. We study the dependence of this MR on temperature and electron energy. Finally, we design a magnetic-field-effect-transistor which yields a MR of close to 100%(85%) at low(room) temperature.
"What It Wants Me To Say": Bridging the Abstraction Gap Between End-User Programmers and Code-Generating Large Language Models
Creators: name: Liu, Michael Xieyang
name: Sarkar, Advait
name: Negreanu, Carina
name: Zorn, Ben
name: Williams, Jack
name: Toronto, Neil
name: Gordon, Andrew D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Code-generating large language models translate natural language into code. However, only a small portion of the infinite space of naturalistic utterances is effective at guiding code generation. For non-expert end-user programmers, learning this is the challenge of abstraction matching. We examine this challenge in the specific context of data analysis in spreadsheets, in a system that maps the users natural language query to Python code using the Codex generator, executes the code, and shows the result. We propose grounded abstraction matching, which bridges the abstraction gap by translating the code back into a systematic and predictable naturalistic utterance. In a between-subjects, think-aloud study (n=24), we compare grounded abstraction matching to an ungrounded alternative based on previously established query framing principles. We find that the grounded approach improves end-users' understanding of the scope and capabilities of the code-generating model, and the kind of language needed to use it effectively.
A new gravitational N-body simulation algorithm for investigation of cosmological chaotic advection
Creators: name: Stalder, Diego H.
name: Rosa, Reinaldo R.
name: Junior, José da Silve
name: Clua, Esteban
name: Ruiz, Renata
name: Velho, Haroldo F. Campos
name: Ramos, Fernando
name: Araújo, Amarísio da Silva
name: Gomes, Vitor Conrado F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recently alternative approaches in cosmology seeks to explain the nature of dark matter as a direct result of the non-linear spacetime curvature due to different types of deformation potentials. In this context, a key test for this hypothesis is to examine the effects of deformation on the evolution of large scales structures. An important requirement for the fine analysis of this pure gravitational signature (without dark matter elements) is to characterize the position of a galaxy during its trajectory to the gravitational collapse of super clusters at low redshifts. In this context, each element in an gravitational N-body simulation behaves as a tracer of collapse governed by the process known as chaotic advection (or lagrangian turbulence). In order to develop a detailed study of this new approach we develop the COsmic LAgrangian TUrbulence Simulator (COLATUS) to perform gravitational N-body simulations based on Compute Unified Device Architecture (CUDA) for graphics processing units (GPUs). In this paper we report the first robust results obtained from COLATUS.
description: Proceedings of Sixth International School on Field Theory and Gravitation-2012 - by American Institute of Physics
A detailed view of a Molecular Cloud in the far outer disk of M33
Creators: name: Braine, J.
name: Gratier, P.
name: Contreras, Y.
name: Schuster, K. F.
name: Brouillet, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The amount of H$_2$ present in spiral galaxies remains uncertain, particularly in the dim outer regions and in low-metallicity environments. We present high-resolution CO(1--0) observations with the Plateau de Bure interferometer of the most distant molecular cloud in the local group galaxy M 33. The cloud is a single entity rather than a set of smaller clouds within the broad beam of the original single-dish observations. The interferometer and single-dish fluxes are very similar and the line widths are indistinguishable, despite the difference in beamsize. At a spatial resolution of 10 pc, beyond the optical radius of the M 33, the CO brightness temperature reaches 2.4 Kelvins. A virial mass estimate for the cloud yields a mass of $4.3 \times 10^4$ \msun and a ratio $\ratio \simeq 3.5 \times 10^{20} \Xunit$. While no velocity gradient is seen where the emission is strong, the velocity is redshifted to the extreme SW and blue-shifted to the far NE. If the orientation of the cloud is along the plane of the disk (i.e. not perpendicular), then these velocities correspond to slow infall or accretion. The rather modest infall rate would be about $2 \times 10^{-4}$\moyr.
description: 6 pages, accepted for publication in A&A
On the notion of sequentially Cohen-Macaulay modules
Creators: name: Caviglia, Giulio
name: De Stefani, Alessandro
name: Sbarra, Enrico
name: Strazzanti, Francesco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: In this survey paper we first present the main properties of sequentially Cohen-Macaulay modules. Some basic examples are provided to help the reader with quickly getting acquainted with this topic. We then discuss two generalizations of the notion of sequential Cohen-Macaulayness which are inspired by a theorem of Jürgen Herzog and the third author.
Towards discovery of gravitationally lensed explosive transients: the brightest galaxies in massive galaxy clusters from Planck-SZ2
Creators: name: Smith, Joshua C.
name: Ryczanowski, Dan
name: Bianconi, Matteo
name: Cristescu, Denisa
name: Harisankar, Sivani
name: Hawkins, Saskia
name: James, Megan L.
name: Ridley, Evan J.
name: Wooding, Simon
name: Smith, Graham P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We combine the Planck-SZ2 galaxy cluster catalogue with near-infrared photometry of galaxies from the VISTA Hemisphere Survey to identify candidate brightest cluster galaxies (BCGs) in 306 massive clusters in the Southern skies at redshifts of $z>0.1$. We find that 91% of these clusters have at least one candidate BCG within the 95% confidence interval on the cluster centers quoted by the Planck collaboration, providing reassurance that our analyses are statistically compatible, and find 92% to be reasonable candidates following a manual inspection. We make our catalog publicly available to assist colleagues interested in multi-wavelength studies of cluster cores, and the search for gravitationally lensed explosive transients in upcoming surveys including the Legacy Survey of Space and Time by the Vera C. Rubin Observatory.
description: Published in RNAAS in March 2023. 3 pages, 1 figure
Graphene Induced Surface Reconstruction of Cu
Creators: name: Tian, Jifa
name: Cao, Helin
name: Wu, Wei
name: Yu, Qingkai
name: Guisinger, Nathan P.
name: Chen, Yong P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An atomic-scale study utilizing scanning tunneling microscopy (STM) in ultrahigh vacuum (UHV) is performed on large single crystalline graphene grains synthesized on Cu foil by a chemical vapor deposition (CVD) method. After thermal annealing, we observe the presence of periodic surface depressions (stripe patterns) that exhibit long-range order formed in the area of Cu covered by graphene. We suggest that the observed stripe pattern is a Cu surface reconstruction formed by partial dislocations (which appeared to be stair-rod-like) resulting from the strain induced by the graphene overlayer. In addition, these graphene grains are shown to be more decoupled from the Cu substrate compared to previously studied grains that exhibited Moiré patterns.
Influence of surface roughness on the optical properties of plasmonic nanoparticles
Creators: name: Truegler, Andreas
name: Tinguely, Jean-Claude
name: Krenn, Joachim R.
name: Hohenau, Andreas
name: Hohenester, Ulrich
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: For plasmonic nanoparticles, we investigate the influence of surface roughness inherent to top-down fabrication on the optical properties, and find that it has a surprisingly small influence on the position and width of the plasmon peaks. Our experimental observation is supported by simulations based on the boundary element method approach. Using a perturbation approach, suitable for metallic nanoparticles with a moderate degree of surface roughness, we demonstrate that the reason for this lies in motional narrowing where the plasmon averages over the random height fluctuations. Surface roughness in large arrays of identical nanoparticles, such as encountered in the context of metamaterials, is thus expected to not constitute a major roadblock.
description: 5 pages, 3 figures
P. J. Fowler, The Farming of Prehistoric Britain
Creators: name: Lüning, Jens
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: P. J. Fowler, The Farming of Prehistoric Britain. Cambridge University Press, Cambridge 1983. X und 246 Seiten mit 60 Abbildungen und 8 Tafeln
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 64, Nr. 1 (1986)
Revisiting Cardassian Model and Cosmic Constraint
Creators: name: Xu, Lixin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we revisit the Cardassian model in which the radiation energy component is included. It is important for early epoch when the radiation cannot be neglected because the equation of state (EoS) of the effective dark energy becomes time variable. Therefore, it is not equivalent to the quintessence model with a constant EoS anymore. This situation was almost overlooked in the literature. By using the recent released Union2 557 of type Ia supernovae (SN Ia), the baryon acoustic oscillation (BAO) from Sloan Digital Sky Survey and the WiggleZ data points, the full information of cosmic microwave background (CMB) measurement given by the seven-year Wilkinson Microwave Anisotropy Probe observation, we constrain the Cardassian model via the Markov Chain Monte Carlo (MCMC) method. A tight constraint is obtained: $n= -0.0479_{- 0.0732- 0.148}^{+ 0.0730+ 0.142}$ in $1,2σ$ regions. The deviation of Cardassian model from quintessence model is shown in CMB anisotropic power spectra at high l's parts due to the evolution of EoS. But it is about the order of 0.1% which cannot be discriminated by current data sets. The Cardassian model is consistent with current cosmic observational data sets.
description: 6 pages, 5 figures, match the published version
$f(\mathcal{G},\mathrm{\textit{T}})$ Gravity Bouncing Universe with Cosmological Parameters
Creators: name: Ahmad, Mushtaq
name: Shamir, M. Farasat
name: Mustafa, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In recent few years, the Gauss-Bonnet $f(\mathcal{G},\mathrm{\textit{T}})$ theory of gravity has fascinated considerable researchers owing to its coupling of trace of the stress-energy tensor $T$ with the Gauss-Bonnet term $\mathcal{G}$. In this context, we focuss ourselves to study bouncing universe with in $f(\mathcal{G},\mathrm{\textit{T}})$ gravity background. Some important preliminaries are presented along with the discussion of cosmological parameters to develop a minimal background about $f(\mathcal{G},\mathrm{\textit{T}})$ theory of gravity. The exact bouncing solutions with physical analysis are provided with the choice of two equation of state parameters. It is shown that the results do agree with the present values of deceleration, jerk and snap parameters. Moreover, it is concluded that the model parameters are quite important for the validity of conservation equation (as the matter coupled theories do not obey the usual conservation law).
description: 12 pages, 10 figures
The Kelvin-Helmholtz instability in Orion: a source of turbulence and chemical mixing
Creators: name: Berne, Olivier
name: Matsumoto, Yosuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Hydrodynamical instabilities are believed to power some of the small scale (0.1-10 pc) turbulence and chemical mixing in the interstellar medium. Identifying such instabilities has always been difficult but recent observations of a wavelike structure (the Ripples) in the Orion nebula have been interpreted as a signature of the Kelvin-Helmholtz instability (KHI), occurring at the interface between the HII region and the molecular cloud. However, this has not been verified theoretically. In this letter, we investigate theoretically the stability of this interface using observational constraints for the local physical conditions. A linear analysis shows that the HII/molecular cloud interface is indeed KH unstable for a certain range of magnetic field orientation. We find that the maximal growth-rates correspond to typical timescales of a few 1e4 years and instability wavelengths of 0.06 to 0.6 pc. We predict that after 2e5 years the KHI saturates and forms a turbulent layer of thickness ~0.5 pc. The KHI can remain in linear phase over a maximum distance of 0.75 pc. These spatial and time scales are compatible with the Ripples representing the linear phase of the KHI. These results suggest that the KHI may be crucial to generate turbulence and to bring heavy elements injected by the winds of massive stars in HII regions to colder regions where planetary systems around low mass stars are being formed. This could apply to the transport of 26Al injected by a massive star in an HII region to the nascent solar-system.
description: Accepted for publication in ApJ Letters
Information zum Waldschutzmeldeportal der NW-FVA
Creators: name: Segger, Olaf
name: Elsner, Gerd
name: Hansen, Jan
name: Hentschel, Swen
name: Hurling, Rainer
name: Plašil, Pavel
name: Rohde, Martin
Publisher: name: Zenodo
Year: 2023
Subjects: Waldschutz, Waldschutzmeldeportal, Schadensmeldungen

description: In der Information werden die Funktionen sowie die Nutzungsmöglichkeiten der Web-Anwendung "Waldschutzmeldeportal (WSMP)" der Nordwestdeutschen Forstlichen Versuchsanstalt (NW-FVA) sowie der damit korrespondierenden App "Schadensmeldungen mobile" für mobile Endgeräte dargestellt. Die Information richtet sich an Waldbesitzende, öffentliche und private Forstbetriebe sowie forstliche Betreuungsinstitutionen in den Trägerländern der NW-FVA (Niedersachsen, Hessen, Sachsen-Anhalt und Schleswig.Holstein)
Eckhard Deschler-Erb, Markus Peter, Sabine Deschler-Erb, Das frühkaiserzeitliche Militärlager in der Kaiseraugster Unterstadt
Creators: name: Böhm-Schönberger, Astrid
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Eckhard Deschler-Erb, Markus Peter, Sabine Deschler-Erb, Das frühkaiserzeitliche Militärlager in der Kaiseraugster Unterstadt. Mit Beiträgen von Sylvia Fünfschilling, Alex R. Furger und Urs Müller. Forschungen in Augst Band 12. Amt für Museen und Archäologie des Kantons Base l- Landschaft, Römermuseum, Augst 1991. ISBN 3-7151-0012-5. 149 Seiten, 86 Abbildungen und
12 Tabellen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 70, Nr. 2 (1992)
Controlling high-frequency collective electron dynamics via single-particle complexity
Creators: name: Alexeeva, N.
name: Greenaway, M. T.
name: Balanov, A. G.
name: Makarovsky, O.
name: Patanè, A.
name: Gaifullin, M. B.
name: Kusmartsev, F.
name: Fromhold, T. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We demonstrate, through experiment and theory, enhanced high-frequency current oscillations due to magnetically-induced conduction resonances in superlattices. Strong increase in the ac power originates from complex single-electron dynamics, characterized by abrupt resonant transitions between unbound and localized trajectories, which trigger and shape propagating charge domains. Our data demonstrate that external fields can tune the collective behavior of quantum particles by imprinting configurable patterns in the single-particle classical phase space.
description: 5 pages, 4 figures
I. M. Stead and V. Rigby, Verulamium: the King Harry Lane site
Creators: name: Böhme-Schönberger, Astrid
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: I. M. Stead and V. Rigby, Verulamium: the King Harry Lane site. With contributions by B. M. Ager, Justine Bayley, P. T. Craddock, Elisabeth Crowfoot, Peter Curnow, Simon Davis, Brenda Dickinson, J. Evans, Vanessa Fell, I. C. Freestone, Roger Goodburn, K. F. Hartley, D. R. Hook, R. P. J. Jackson, Catherine Johns, C. A. Keepax, I. H. Longworth, N. D. Meeks, A. P. Middleton, Jennifer Price, Richard Reece, Ann Stirland, Jacqui Watson, David Williams. Historie Buildings and Monuments Commission for England, Archaeological Report 12. English Heritage in association with British Museum Publications, London 1989. ISBN 1-85074-212-X. VIII, 407 Seiten und 182 Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 71, Nr. 1 (1993)
Guidance for the use of Regulatory Focus questions (Socio-Epi Model - Biosecurity - SRUC-A2-4)
Creators: name: Lamont, Kate
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 300905
subject: Veterinary epidemiology
classificationCode: 300208
subject: Farm management, rural management and agribusiness
classificationCode: 300999
subject: Veterinary sciences not elsewhere classified
classificationCode: 449999
subject: Other human society not elsewhere classified
classificationCode: 300302
subject: Animal management

description: Guidance for the use of Regulatory Focus questions in the Agri-food sector
L'appui à la société civile locale dans la réalisation du droit au développement : Expériences tirées du contexte ougandais
Creators: name: Bacher, Stéphanie
Publisher: name: My University
Year: 2020
Subjects: société civile
droit au développement
développement international
Ouganda

description: Comment les pays donateurs et les organisations qui œuvrent dans le secteur du développement international appuient-ils la société civile locale dans la réalisation du droit au développement ? C’est à partir de trois études de cas dans des secteurs d’activités différents en Ouganda que ce document de travail vise à montrer comment des organisations s’adaptent au contexte local ainsi qu’à l’environnement socio-politique de la société civile dans la réalisation du droit au développement. En effet, dans le cas du travail de la société civile dans la lutte contre le mariage forcé, l’organisation Vision mondiale a profité de la collaboration entre les diverses entités socio-politiques (gouvernement, autorités locales et culturelles) pour mettre en place une coalition formelle qui solidifie le travail de l’ensemble des acteurs sociaux. Dans le cas du mouvement social « Jobless Brotherhood » contre la corruption et le chômage, les organisations non-gouvernementales ont préféré demeurer au second plan et utiliser leurs capacités pour appuyer les efforts des leaders du mouvement social. Enfin, le dernier cas témoigne du rôle de l’organisation Justice and Reconciliation Project pour soutenir la création de groupes informels, qui regroupent les victimes du conflit armé et choisissent elles-mêmes leurs modes d’action dans le secteur de la justice transitionnelle.
Annual Parallax Distance to the K-type star system IRAS 22480+6002 measured with VERA
Creators: name: Imai, Hiroshi
name: Sakai, Nobuyuki
name: Nakanishi, Hiroyuki
name: Sakanoue, Hirofumi
name: Honma, Mareki
name: Miyaji, Takeshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the astrometric VLBI observations of water masers associated with IRAS 22480+6002 (IRC+60370, hereafter I22480) with the VLBI Exploration of Radio Astrometry (VERA). The stellar type of I22480 looks unusual as a stellar maser source and has been debated since the 1970s. We successfully determined the annual parallax of a group of the water maser spots, pi=0.400+/-0.025 mas, corresponding to a distance to I22480 of D=2.50 /+0.17/-0.15 kpc. This suggests that the estimated bolometric luminosity of I22480 should be revised to 35 000 L_sun, favoring a K-type supergiant rather than an RV Tau-type variable star previously suggested. Although the spectral type is unusual as a stellar maser source, the internal motions of the water maser features suggest that the water masers are associated with the circumstellar envelope of this star. Taking into account a possible stellar motion with respect to the maser feature motions, we derived a secular proper motion of I22480, (mu_alpha, mu_delta)=(-2.58+/-0.33, -1.91+/-0.17) [mas yr^-1]. The derived motion of I22480 in the Milky Way has a deviation by ~ -30 km/s in the galactic azimuthal direction from a circular motion estimated from the galactocentric distance to I22480 and assumption of a flat Galactic rotation curve. This peculiar motion is still comparable to those typically seen in the water maser sources located in the Perseus spiral arm. Taking into account the peculiar motion and the proximity to the Galactic midplane (z ~60 pc), I22480 may be a member of the Galactic thin disk.
description: 11 pages, 7 figures, accepted by PASJ (issue on vol. 65, No.1). Figure formats were corrected
Additional file 1 of Excess mortality for care home residents during the first 23 weeks of the COVID-19 pandemic in England: a national cohort study
Creators: name: Morciano, Marcello
name: Stokes, Jonathan
name: Kontopantelis, Evangelos
name: Hall, Ian
name: Turner, Alex J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Appendix 1. Construction of the analysis sample. This appendix includes three figures: Figure A1-1. Average death toll by day of the week in England. Figure A1-2. Variation in the weekly death toll across local authorities. Figure A1-3. Percentage of care homes experiencing COVID-19 deaths by care home size (number of beds). Appendix 2. Model selection and robustness to alternative specifications of seasonality. This appendix includes four Tables: Table A2-1. Results of the validation exercise for deaths in all care homes. Table A2-2. Results of the validation exercise for deaths in nursing care homes. Table A2-3. Results of the validation exercise for deaths in residential care homes. Table A2-4. Robustness of excess death estimations to alternative econometric models. Appendix 3. Predicted versus observed deaths, and estimated excess deaths over time (all care homes and by care home setting type), full observational period. This appendix includes two figures: Figure A3-1. Predicted versus observed deaths, and estimated excess deaths - All care homes in England. Figure A3-2. Predicted versus observed deaths, and estimated excess deaths over time by care home setting type. Appendix 4. Predicted versus observed deaths, and estimated excess deaths by whether care homes have experienced COVID-19 attributable deaths in the first 23 weeks of the pandemic. This appendix includes two figures: Figure A4.1. Predicted versus observed deaths, and estimated excess deaths over time – Nursing homes. Figure A4.2. Predicted versus observed deaths, and estimated excess deaths – Residential homes. Appendix 5. Multivariable adjusted odds ratios (sensitivity analysis). This appendix includes two Tables: Table A5-1. Multivariable adjusted odds ratios (95%CI) of experiencing COVID-19 confirmed/suspected deaths in the English care homes that provide services to older people/with dementia. Table A5-2. Multivariable adjusted odds ratios (95%CI) of an augmented model adjusted for whether care homes located in urban area (reference located in rural area) and whether in least and most deprived 20% of areas in England.
Factorization of numbers with truncated Gauss sums at rational arguments
Creators: name: Wölk, S.
name: Feiler, C.
name: Schleich, W. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Factorization of numbers with the help of Gauss sums relies on an intimate relationship between the maxima of these functions and the factors. Indeed, when we restrict ourselves to integer arguments of the Gauss sum we profit from a one-to-one relationship. As a result the identification of factors by the maxima is unique. However, for non-integer arguments such as rational numbers this powerful instrument to find factors breaks down. We develop new strategies for factoring numbers using Gauss sums at rational arguments. This approach may find application in a recent suggestion to factor numbers using an light interferometer [V. Tamma et al., J. Mod. Opt. in this volume] discussed in this issue.
description: 10 pages, 5 figures
Prediction method of cigarette draw resistance based on correlation analysis
Creators: name: Chen, Linsheng
name: Yu, Zhonghua
name: Zhang, Bo
name: Zhu, Qiang
name: Fan, Hu
name: Qiu, Yucan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The cigarette draw resistance monitoring method is incomplete and single, and the lacks correlation analysis and preventive modeling, resulting in substandard cigarettes in the market. To address this problem without increasing the hardware cost, in this paper, multi-indicator correlation analysis is used to predict cigarette draw resistance. First, the monitoring process of draw resistance is analyzed based on the existing quality control framework, and optimization ideas are proposed. In addition, for the three production units, the cut tobacco supply (VE), the tobacco rolling (SE), and the cigarette-forming (MAX), direct and potential factors associated with draw resistance are explored, based on the linear and non-linear correlation analysis. Then, the correlates of draw resistance are used as inputs for the machine learning model, and the predicted values of draw resistance are used as outputs. Finally, this research also innovatively verifies the practical application value of draw resistance prediction: the distribution characteristics of substandard cigarettes are analyzed based on the prediction results, the time interval of substandard cigarettes being produced is determined, the probability model of substandard cigarettes being sampled is derived, and the reliability of the prediction result is further verified by the example. The results show that the prediction model based on correlation analysis has good performance in three months of actual production.
description: Preprint, submitted to Computers and Electronics in Agriculture. For any suggestions or improvements, please contact me directly by e-mail
Heiko Neumayer, Merowingerzeitliche Grabfunde des Mittelrheingebietes zwischen Nahe- und Moselmündung
Creators: name: Theune, Claudia
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Heiko Neumayer, Merowingerzeitliche Grabfunde des Mittelrheingebietes zwischen Nahe- und Moselmündung. Archäologische Schriften des Instituts für Vor- und Frühgeschichte der Johannes-Gutenberg-Universität Mainz, Band 2. Mainz 1993. ISBN 3-928957-01-5. 213 Seiten, 45 Tafeln, 14 Karten und 1 Abbildung.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 73, Nr. 2 (1995)
MagNetUS 2021 - Day 2 - S. Mordijck - Drift-wave turbulence on LAPD
Creators: name: Mordijck, Saskia
Publisher: name: Zenodo
Year: 2021

description: MagNetUS 2021 - Day 2
 Speaker: Saskia Mordijck
 Title: Drift-wave turbulence on LAPD