cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Current-induced dynamics of composite free layer with antiferromagnetic interlayer exchange coupling
Creators: name: Baláž, Pavel
name: Barnaś, Józef
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Current-induced dynamics in spin valves including composite free layer with antiferromagnetic interlayer exchange coupling is studied theoretically within the diffusive transport regime. We show that current-induced dynamics of a synthetic antiferromagnet is significantly different from dynamics of a synthetic ferrimagnet. From macrospin simulations we obtain conditions for switching the composite free layer, as well as for appearance of various self-sustained dynamical modes. Numerical simulations are compared with simple analytical models of critical current based on linearized Landau-Lifshitz-Gilbert equation.
description: 11 pages, 7 figures
How Stress Can Reduce Dissipation in Glasses
Creators: name: Wu, Jiansheng
name: Yu, Clare C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose that stress can decrease the internal friction of amorphous solids, either by increasing the potential barriers of defects, thus reducing their tunneling and thermal activation that produce loss, or by decreasing the coupling between defects and phonons. This stress can be from impurities, atomic bonding constraints, or externally applied stress. Externally applied stress also reduces mechanical loss through dissipation dilution. Our results are consistent with the experiments, and predict that stress could substantially reduce dielectric loss and increase the thermal conductivity.
description: 9 pages, 7 figures
title: Electrical power, energy efficiency, NO and CO emissions investigations of an ammonia/methane-fueled micro-thermal photovoltaic system with a reduced chemical reaction mechanism
Creators: name: Zhao, He
name: Zhao, Dan
name: Sun, Dakun
name: Semlitsch, Bernhard
Publisher: name: PERGAMON-ELSEVIER SCIENCE LTD
Year: 2024
Subjects: Ammonia
Thermodynamics
Energy conversion
Energy efficiency
Methane

description: Ammonia is an alternative renewable green fuel with significant potential for addressing climate change concerns. Blending ammonia with methane has emerged as a viable strategy to improve the laminar burning velocity of ammonia. In this study, we propose a mechanism for methane/ammonia combustion, comprising 31 species and 131 chemical reaction steps, and investigate the emissions of CO and NO, along with electrical power output and energy efficiency of a micro-thermal photovoltaic (MTPV) system fueled with premixed ammonia/methane/oxygen. Three key parameters are identified as: 1) the inlet mixture flow velocity, 2) the CH₄ mole fraction blended ratio (ξCH₄), and 3) the material of the micro-combustor. The MTPV system achieves its highest energy efficiency (5.8 %) at an inlet velocity (vin) of 2.3 m/s, and reaches its maximum electrical power output (6.9 W) at vin = 7.2 m/s. Further, increasing ξCH4 can enhance electrical power output (ξCH₄ = 0.9 yields 1.37 W more than that at ξCH₄ = 0.1). Finally, altering the micro-combustor material is shown to have little effects on electrical power output, NO emissions, and energy efficiency. However, the MTPV system made of quartz is found to reduce CO emissions by 15 % and 12 % in comparison with those systems made of Sic and steel, respectively.
Non-monotonous short-time decay of the Loschmidt echo in quasi-one-dimensional systems
Creators: name: Goussev, Arseni
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the short-time stability of quantum dynamics in quasi-one-dimensional systems with respect to small localized perturbations of the potential. To this end, we address, analytically and numerically, the decay of the Loschmidt echo (LE) during times short compared to the Ehrenfest time. We find that the LE is generally a non-monotonous function of time and exhibits strongly pronounced minima and maxima at the instants of time when the corresponding classical particle traverses the perturbation region. We also show that, under general conditions, the envelope decay of the LE is well approximated by a Gaussian, and we derive explicit analytical formulas for the corresponding decay time. Finally, we demonstrate that the observed non-monotonicity of the LE decay is only pertinent to one-dimensional (and, more generally, quasi-one-dimensional systems), and that the short-time decay of the LE can be monotonous in higher number of dimensions.
description: 12 pages, 8 figures; added references, corrected typos
The Development of Sentence Interpretation in Hungarian
Creators: name: Macwhinney, Brian
name: Pléh, Csaba
name: Bates, Elizabeth
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: In order to test certain assumptions of the "competition model" of B. MacWhinney, E. Bates, and R. Kliegl (1984 Journal of Verbal Learning and Verbal Behavior, 23, 127-150), we conducted three experiments on sentence understanding by Hungarian preschool children. According to the competition model, the listener uses verbal cues in a probabilistic manner to make judgments concerning the grammatical roles of the different noun phrases in a sentence. The order in which children develop control of these cues is said to depend on cue validity. The cues manipulated in these experiments included case marking, word order, animacy, stress, phonological detectability, and person of the possessor. The studies examined the impact of these cues on the choice of an agent. The results were well predicted by the competition model. Experiments 2 and 3 indicated that ungrammatical sentences are processed in ways similar to comparable grammatical sentences, thus supporting the ecological validity of the experimental method and of previous research based on the use of this method. There was also evidence for the use in Hungarian of (1) a first-noun-as-agent
Terzan 5 transient IGR J17480-2446: variation of burst and spectral properties with spectral states
Creators: name: Chakraborty, Manoneeta
name: Bhattacharyya, Sudip
name: Mukherjee, Arunava
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the spectral state evolution of the Terzan 5 transient neutron star low-mass X-ray binary IGR J17480-2446, and how the best-fit spectral parameters and burst properties evolved with these states, using the Rossi X-ray Timing Explorer data. As reported by other authors, this is the second source which showed transitions between atoll state and `Z' state. We find large scale hysteresis in the almost `C'-like hardness-intensity track of the source in the atoll state. This discovery is likely to provide a missing piece of the jigsaw puzzle involving various types of hardness-intensity tracks from `q'-shaped for Aquila X-1, 4U 1608-52, and many black holes to `C'-shaped for many atoll sources. Furthermore, the regular pulsations, a diagonal transition between soft and hard states, and the large scale hysteresis observed from IGR J17480-2446 argue against some of the previous suggestions involving magnetic field about atolls and millisecond pulsars. Our results also suggest that the nature of spectral evolution throughout an outburst does not, at least entirely, depend on the peak luminosity of the outburst. Besides, the source took at least a month to trace the softer banana state, as opposed to a few hours to a day, which is typical for an atoll source. In addition, while the soft colour usually increases with intensity in the softer portion of an atoll source, IGR J17480-2446 showed an opposite behaviour. From the detailed spectral fitting we conclude that a blackbody+powerlaw model is the simplest one, which describes the source continuum spectra well throughout the outburst. We find that these two spectral components were plausibly connected with each other, and they worked together to cause the source state evolution. (Truncated).
description: 16 pages, 8 figures, 2 tables, accepted for publication in MNRAS
FBmc_soil_temps.csv
Creators: name: Heinecke, T
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310308
subject: Terrestrial ecology

description: Data repository for publication:Unpunctual in diversity: The effect of stand species richness on spring phenology of deciduous tree stands varies among species and yearsby T.Heinecke, P.DeFrenne, K.Verheyen, I.Nijs, E.Matthysen and M.Campioli
Generalized modes in Bayesian inverse problems
Creators: name: Clason, Christian
name: Helin, Tapio
name: Kretschmann, Remo
name: Piiroinen, Petteri
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistics Theory (math.ST)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Uncertainty quantification requires efficient summarization of high- or even infinite-dimensional (i.e., non-parametric) distributions based on, e.g., suitable point estimates (modes) for posterior distributions arising from model-specific prior distributions. In this work, we consider non-parametric modes and MAP estimates for priors that do not admit continuous densities, for which previous approaches based on small ball probabilities fail. We propose a novel definition of generalized modes based on the concept of approximating sequences, which reduce to the classical mode in certain situations that include Gaussian priors but also exist for a more general class of priors. The latter includes the case of priors that impose strict bounds on the admissible parameters and in particular of uniform priors. For uniform priors defined by random series with uniformly distributed coefficients, we show that generalized MAP estimates -- but not classical MAP estimates -- can be characterized as minimizers of a suitable functional that plays the role of a generalized Onsager--Machlup functional. This is then used to show consistency of nonlinear Bayesian inverse problems with uniform priors and Gaussian noise.
Palladium-katalysierte Funktionalisierung und Zyklisierung sowie Säure-vermittelte Zykloisomerisierung von Chinolin-Derivaten
Creators: name: Janke, Sophie
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 540 Chemistry & allied sciences

description: Die Arbeit befasst sich mit der Palladium-katalysierten sowie der Brønsted-Säure-vermittelten Zyklisierung von Chinolinen. Die Indolochinoline konnten durch eine Palladium-katalysierte Suzuki-Miyaura-Reaktion, gefolgt von einer Buchwald-Hartwig-Aminierung, synthetisiert werden. Die Synthese der Benzoacridine und Benzophenanthridine sowie der Benzoindolizinonaphthyridine erfolgte durch Palladium-katalysierte Reaktionen und der sich anschließenden Brønsted-Säure-vermittelten Zykloisomerisierung. Die optischen Eigenschaften wurden mittels Absorptions- und Emissionsspektroskopie untersucht.
Symmetric polarization insensitive directional couplers fabricated by femtosecond laser waveguide writing
Creators: name: Corrielli, Giacomo
name: Atzeni, Simone
name: Piacentini, Simone
name: Pitsios, Ioannis
name: Crespi, Andrea
name: Osellame, Roberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study analytically the polarization behaviour of directional couplers composed of birefringent waveguides, showing that they can induce polarization transformations that depend on the specific input-output path considered. On the basis of this study, we propose and demonstrate experimentally, by femtosecond laser writing, directional couplers that are free from this problem and also yield a polarization independent power-splitting ratio. More in detail, we devise two different approaches to realize such devices: the first one is based on local birefringence engineering, while the second one exploits ultra-low birefringence waveguides obtained by thermal annealing.
Radiative Cooling in MHD Models of the Quiet Sun Convection Zone and Corona
Creators: name: Abbett, William P.
name: Fisher, George H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a series of numerical simulations of the quiet Sun plasma threaded by magnetic fields that extend from the upper convection zone into the low corona. We discuss an efficient, simplified approximation to the physics of optically thick radiative transport through the surface layers, and investigate the effects of convective turbulence on the magnetic structure of the Sun's atmosphere in an initially unipolar (open field) region. We find that the net Poynting flux below the surface is on average directed toward the interior, while in the photosphere and chromosphere the net flow of electromagnetic energy is outward into the solar corona. Overturning convective motions between these layers driven by rapid radiative cooling appears to be the source of energy for the oppositely directed fluxes of electromagnetic energy.
description: 20 pages, 5 figures, Solar Physics, in press
CONCRETE UNDER DIFFERENT SP60 DOSE AND CURING CONDITIONS
Creators: name: GETACHEW MITIKU ASHEBIR
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019
Subjects: Superplasticizer (SP60), Curing, Workability, Strength, slump

description: Concrete is a product mainly made from cement, aggregates, water and an additional important material is called Admixtures. Superplasticizer is one of the types of admixtures and attention has been given to the use of superplasticizers to enhance the performance of concrete. Such efforts have increased in Ethiopia and superplasticizer designated as SP60 is currently produced and mainly used in many construction activities. The present work is aimed at studying on the behavior of plain concrete using different dosages of SP60 under different curing conditions for concrete grade C-30 and at constant water cement ratio of 0.45. Experimental tests on 135 standard samples for concrete grade C-30 are carried out to evaluate the effect of the superplasticizer on concrete compressive, splitting tensile and flexural strength under different curing conditions and at an ambient temperature and humidity of 20.1°c and 73% respectively. The optimum dosage of SP60 has been obtained for each strength test. It is observed that concrete cured in water for 28 days showed maximum compression and tensile strength with the addition of 1.5% SP60 and maximum flexural strength at 1% for curing condition (CC1).
The development of numerical estimation: evidence for multiple representations of numerical quantity.
Creators: name: Siegler, Robert
name: Opfer, John E.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: We examined children's and adults' numerical estimation and the representations that gave rise to their estimates. The results were inconsistent with two prominent models of numerical representation: the logarithmic-ruler model, which proposes that people of all ages possess a single, logarithmically spaced representation of numbers, and the accumulator model, which proposes that people of all ages represent numbers as linearly increasing magnitudes with scalar variability. Instead, the data indicated that individual children possess multiple numerical representations; that with increasing age and numerical experience, they rely on appropriate representations increasingly often; and that the numerical context influences their choice of representation. The results, obtained with second graders, fourth graders, sixth graders, and adults who performed two estimation tasks in two numerical contexts, strongly suggest that one cause of children's difficulties with estimation is reliance on logarithmic representations of numerical magnitudes in situations in which accurate estimation requires reliance on linear representations.
Three-dimensional Radiative Transfer with Multilevel Atoms
Creators: name: Bendicho, P. Fabiani
name: Bueno, J. Trujillo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The efficient numerical solution of Non-LTE multilevel transfer problems requires the combination of highly convergent iterative schemes with fast and accurate formal solution methods of the radiative transfer (RT) equation. This contribution begins presenting a method for the formal solution of the RT equation in three-dimensional (3D) media with horizontal periodic boundary conditions. This formal solver is suitable for both, unpolarized and polarized 3D radiative transfer and it can be easily combined with the iterative schemes for solving non-LTE multilevel transfer problems that we have developed over the last few years. We demonstrate this by showing some schematic 3D multilevel calculations that illustrate the physical effects of horizontal radiative transfer. These Non-LTE calculations have been carried out with our code MUGA 3D, a 3D multilevel Non-LTE code based on the Gauss-Seidel iterative scheme that Trujillo Bueno and Fabiani Bendicho (1995) developed for RT applications.
description: 12 pages and 6 figures
MPEC 2024-N57 : 2019 GE185
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The dependency paradox in close relationships: accepting dependence promotes independence.
Creators: name: Feeney, Brooke
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Using multiple methods, this investigation tested the hypothesis that a close relationship partner's acceptance of dependence when needed (e.g., sensitive responsiveness to distress cues) is associated with less dependence, more autonomous functioning, and more self-sufficiency (as opposed to more dependence) on the part of the supported individual. In two studies, measures of acceptance of dependency needs and independent functioning were obtained through couple member reports, by observing couple members' behaviors during laboratory interactions, by observing responses to experimentally manipulated partner assistance provided during an individual laboratory task, and by following couples over a period of 6 months to examine independent goal striving as a function of prior assessments of dependency acceptance. Results provided converging evidence in support of the proposed hypothesis. Implications of the importance of close relationships for optimal individual functioning are discussed.
Social entrepreneurship and sustainable development: Case study of responsible Moroccan companies
Creators: name: Karima EL BALBAL
name: Soumia OMARI
Publisher: name: Zenodo
Year: 2024

description: Nowadays, most markets are saturated and infested with cut-throat competition between companies, where only the most resilient can survive. Every year, companies race to achieve higher sales than in previous years, to outstrip the competition and ensure their survival. However, ecological and social equilibrium is all but forgotten by most of these companies, which are only interested in achieving their sales targets. It is in this context that NGOs and environmental and consumer protection associations have been able to put pressure on companies by asserting the importance of protecting the environment, natural resources and, more generally, the principles of sustainable development. As a result, many companies have designed and integrated CSR approaches into their strategies, to ensure responsible operations that take into account the ecological and social aspects.
title: ADCO, Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Cart. 143 (7 H 7), 153 fol, f. 0142r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0142r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0142r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb137389344
description: Provenance: abbaye de Molesme
description: Provenance: http://www.wikidata.org/entity/Q334044
Quantum folded string and integrability: from finite size effects to Konishi dimension
Creators: name: Gromov, Nikolay
name: Serban, Didina
name: Shenderovich, Igor
name: Volin, Dmytro
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the algebraic curve approach we one-loop quantize the folded string solution for the type IIB superstring in AdS(5)xS(5). We obtain an explicit result valid for arbitrary values of its Lorentz spin S and R-charge J in terms of integrals of elliptic functions. Then we consider the limit S ~ J ~ 1 and derive the leading three coefficients of strong coupling expansion of short operators. Notably, our result evaluated for the anomalous dimension of the Konishi state gives 2λ^{1/4}-4+2/λ^{1/4}. This reproduces correctly the values predicted numerically in arXiv:0906.4240. Furthermore we compare our result using some new numerical data from the Y-system for another similar state. We also revisited some of the large S computations using our methods. In particular, we derive finite--size corrections to the anomalous dimension of operators with small J in this limit.
description: 20 pages, 1 figure; v2: references added, typos corrected; v3: major improvement of the references; v4: Discussion of short operators is restricted to the case n=1. This restriction does not affect the main results of the paper
Constructing lattice points for numerical integration by a reduced fast successive coordinate search algorithm
Creators: name: Ebert, Adrian
name: Kritzer, Peter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65D30, 65D32, 41A55, 41A63

description: In this paper, we study an efficient algorithm for constructing node sets of high-quality quasi-Monte Carlo integration rules for weighted Korobov, Walsh, and Sobolev spaces. The algorithm presented is a reduced fast successive coordinate search (SCS) algorithm, which is adapted to situations where the weights in the function space show a sufficiently fast decay. The new SCS algorithm is designed to work for the construction of lattice points, and, in a modified version, for polynomial lattice points, and the corresponding integration rules can be used to treat functions in different kinds of function spaces. We show that the integration rules constructed by our algorithms satisfy error bounds of optimal convergence order. Furthermore, we give details on efficient implementation such that we obtain a considerable speed-up of previously known SCS algorithms. This improvement is illustrated by numerical results. The speed-up obtained by our results may be of particular interest in the context of QMC for PDEs with random coefficients, where both the dimension and the required numberof points are usually very large. Furthermore, our main theorems yield previously unknown generalizations of earlier results.
description: 33 pages, 2 figures
The most suitable cereal varieties (wheat, rye,…) for agroforestry systems (PA) - Variedades de cereal más adecuadas (trigo, centeno,…) para sistemas agroforestales (PA)
Creators: name: Mosquera-Losada MR
name: Ferreiro-Domínguez N
name: Rodríguez-Rigueiro FJ
name: Santiago-Freijanes JJ
name: Rigueiro-Rodríguez A
Publisher: name: Zenodo
Year: 2019
Subjects: climate change
simulated shade
chestnut
Cambio climático
sombra simulada
castaños

description: Los cereales suelen estar vinculados a la producción humana y ganadera. La aparición de temperaturas extremas asociadas al cambio climático se puede vincular con las pérdidas de producción del cereal. Por lo tanto, la producción de cereales asociada a sistemas agroforestales silvoarables que reducen las temperaturas en el ambiente del cultivo debido a la sombra, se considera una buena estrategia para adaptar el cultivo de cereal al cambio climático. Sin embargo, la mayoría de las variedades de cereales en venta han sido seleccionadas para ser cultivadas en lugares abiertos, y por lo tanto, existe la necesidad de seleccionar variedades de cereales para desarrollarse bajo sombra. Se llevó a cabo un experimento en un invernadero donde se evaluaron 45 variedades comerciales de trigo, maíz y centeno con sombra simulada. El centeno y el trigo se sembraron en otoño sin sombra y cuando las hojas de los árboles empezaron a brotar en primavera en el exterior, las variedades de cereales se cubrieron con una maya para simular la sombra en el invernadero, mientras que la evaluación del maíz se probó con sombra porque el maíz es una especie que se desarrolla durante el verano.
Holographic Fermions in Striped Phases
Creators: name: Cremonini, Sera
name: Li, Li
name: Ren, Jie
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We examine the fermionic response in a holographic model of a low temperature striped phase, working for concreteness with the setup we studied in [Cremonini:2016rbd,Cremonini:2017usb], in which a U(1) symmetry and translational invariance are broken spontaneously at the same time. We include an ionic lattice that breaks translational symmetry explicitly in the UV of the theory. Thus, this construction realizes spontaneous crystallization on top of a background lattice. We solve the Dirac equation for a probe fermion in the associated background geometry using numerical techniques, and explore the interplay between spontaneous and explicit breaking of translations. We note that in our model the breaking of the U(1) symmetry doesn't play a role in the analysis of the fermionic spectral function. We investigate under which conditions a Fermi surface can form and focus in particular on how the ionic lattice affects its structure. When the ionic lattice becomes sufficiently strong the spectral weight peaks broaden, denoting a gradual disappearance of the Fermi surface along the symmetry breaking direction. This phenomenon occurs even in the absence of spontaneously generated stripes. The resulting Fermi surface appears to consist of detached segments reminiscent of Fermi arcs.
description: v2: 43 pages, 20 figures. Major revision, title and abstract modified, new discussion added, conclusions unchanged. To appear in JHEP
The Curriculum and the Learning Environment: A Componential Analysis of the Learning Curve
Creators: name: Gluck, Kevin A.
name: Lovett, Marsha C.
name: Anderson, John R.
name: Shute, Valerie J.
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: This paper presents a quantitative assessment of the importance of adaptation to the learning environment as a component of the learning curve in performance data from a computer-based tutor. In Experiment 1, verbal protocols are used to investigate the nature of changes in low-level interactions that take place during learning with a computerized tutor called Stat Lady (Shute & Gluck, 1994). The data show consistent behavioral changes in the distribution of attention, which account for a substantial portion of the learning curve, independent of error rates. These changes primarily are decreases in the verbalization of on-screen text, although the elimination of interface confusion also contributes to the efficiency gain. Experiment 2 tests the generalizability of the results in a larger population of learners. It is shown that adaptation to the learning environment accounts for a comparable proportion of the learning curve in this new population. More than half of the learning curve could be accounted for by these changes in low-level interactions. These results suggest that more accurate learning models should include a representation of increasing knowledge of the instructional environment as the model interacts with that environment. An ACT-R (Anderson & Lebiere, 1998) model is provided that reproduces the qualitative and quantitative data from the verbal protocol participants. The model reproduces these behaviors via (1) the acquisition of declarative knowledge for the structure of the problem scenarios, and (2) subsymbolic procedural tuning for more efficient goal completion.
Stellar contents and star formation in the young star cluster Be 59
Creators: name: Pandey, A. K.
name: Sharma, Saurabh
name: Ogura, K.
name: Ojha, D. K.
name: Chen, W. P.
name: Bhatt, B. C.
name: Ghosh, S. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present $UBVI_C$ CCD photometry of the young open cluster Be 59 with the aim to study the star formation scenario in the cluster. The radial extent of the cluster is found to be $\sim$ 10 arcmin (2.9 pc). The interstellar extinction in the cluster region varies between $E(B-V) \simeq$ 1.4 to 1.8 mag. The ratio of total-to-selective extinction in the cluster region is estimated as $3.7\pm0.3$. The distance of the cluster is found to be $1.00\pm0.05$ kpc. Using near-infrared colours and slitless spectroscopy, we have identified young stellar objects (YSOs) in the open cluster Be 59 region. The ages of these YSOs range between $<1$ Myr to $\sim$ 2 Myr, whereas the mean age of the massive stars in the cluster region is found to be $\sim$ 2 Myr. There is evidence for second generation star formation outside the boundary of the cluster, which may be triggered by massive stars in the cluster. The slope of the initial mass function, $Γ$, in the mass range $2.5 < M/M_\odot \le 28$ is found to be $-1.01\pm0.11$ which is shallower than the Salpeter value (-1.35), whereas in the mass range $1.5 < M/M_\odot \le 2.5$ the slope is almost flat. The slope of the K-band luminosity function is estimated as $0.27\pm0.02$, which is smaller than the average value ($\sim$0.4) reported for young embedded clusters. Approximately 32% of H$α$ emission stars of Be 59 exhibit NIR excess indicating that inner disks of the T-Tauri star (TTS) population have not dissipated. The MSX and IRAS-HIRES images around the cluster region are also used to study the emission from unidentified infrared bands and to estimate the spatial distribution of optical depth of warm and cold interstellar dust.
description: Accepted for the publication in MNRAS, 39 pages, 26 Figures, 8 Tables
Quantum cloning and teleportation fidelity in the noncommutative phase-space
Creators: name: Leal, P.
name: Bernardini, A. E.
name: Bertolami, O.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The formulation of the no-cloning theorem in the framework of phase-space noncommutative (NC) quantum mechanics (QM) is examined, and its implications for the computation of quantum cloning probabilities and teleportation fidelity are investigated through the Weyl-Wigner formulation of QM. The principles of QM re-edited in terms of a deformed Heisenberg-Weyl algebra are shown to provide a covariant formulation for the quantum fidelity, through which the results from the no-cloning theorem for the ordinary QM can be reproduced. Besides exhibiting an explicit correspondence between standard and NC QM for Gaussian Wigner functions, our results suggest a feasible interpretation for the NC continuous variable quantum cloning given in terms of quantum teleportation protocols.
description: 21 pages
Forecasting of a Hierarchical Functional Time Series on Example of Macromodel for Day and Night Air Pollution in Silesia Region: A Critical Overview
Creators: name: Kosiorowski, Daniel
name: Mielczarek, Dominik
name: Rydlewski, Jerzy. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Econometrics (econ.EM)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: In economics we often face a system, which intrinsically imposes a structure of hierarchy of its components, i.e., in modelling trade accounts related to foreign exchange or in optimization of regional air protection policy. A problem of reconciliation of forecasts obtained on different levels of hierarchy has been addressed in the statistical and econometric literature for many times and concerns bringing together forecasts obtained independently at different levels of hierarchy. This paper deals with this issue in case of a hierarchical functional time series. We present and critically discuss a state of art and indicate opportunities of an application of these methods to a certain environment protection problem. We critically compare the best predictor known from the literature with our own original proposal. Within the paper we study a macromodel describing a day and night air pollution in Silesia region divided into five subregions.
description: arXiv admin note: text overlap with arXiv:1710.02669
TURIZMNI MAHALLIY IQTISODIYOTGA TA'SIRI
Creators: name: Po’latov Isfandiyor
Publisher: name: Journal of new century innovations
Year: 2025
Subjects: mahalliy aholi
iqtisodiy barqarorlik
iqtisodiyot
boshqaruv
ish o'rinlari.
местное население
экономическая стабильность
экономика
управление
рабочие места.

description: Turizm sohasining mahalliy iqtisodiyotga ta'siri keng qamrovli va ko'p jihatli. Har bir mamlakatda turizm rivojlantirilishi, iqtisodiy o'sish va barqarorlikni ta'minlashda muhim ahamiyatga ega. Mahalliy iqtisodiyotga ta'siri esa ko'plab jihatlarni o'z ichiga oladi. Ushbu maqolada turizmning mahalliy iqtisodiyotga ta'sirini turli jihatlari haqida ma'lumotlar berilgan.
description: Влияние туристического сектора на местную экономику обширно и многогранно. Развитие туризма в каждой стране важно для обеспечения экономического роста и стабильности. Воздействие на местную экономику включает в себя множество аспектов. В данной статье представлена информация о различных аспектах влияния туризма на местную экономику.
$\tilde{O}(n^{1/3})$-Space Algorithm for the Grid Graph Reachability Problem
Creators: name: Ashida, Ryo
name: Nakagawa, Kotaro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The directed graph reachability problem takes as input an $n$-vertex directed graph $G=(V,E)$, and two distinguished vertices $s$ and $t$. The problem is to determine whether there exists a path from $s$ to $t$ in $G$. This is a canonical complete problem for class NL. Asano et al. proposed an $\tilde{O}(\sqrt{n})$ space and polynomial time algorithm for the directed grid and planar graph reachability problem. The main result of this paper is to show that the directed graph reachability problem restricted to grid graphs can be solved in polynomial time using only $\tilde{O}(n^{1/3})$ space.
title: Individuelle Tatbestandsverwirklichung durch gemeinsames Handeln
Creators: name: Frister, Helmut
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2024
Subjects: subject: 345

description: Neue Strafrechtswissenschaft, vol. 2024, no. 1, p. 19
Impact of pulse dynamics on timing jitter in mode-locked fiber lasers
Creators: name: Song, Youjian
name: Jung, Kwangyun
name: Kim, Jungwon
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the high-frequency timing jitter spectral density of mode-locked fiber lasers in different mode-locked regimes. Quantum noise-limited timing jitter spectra of mode-locked-regime-switchable Yb fiber lasers are measured up to the Nyquist frequency with sub-100 as resolution. The integrated rms timing jitter of soliton, stretched-pulse, and self-similar Yb fiber lasers is measured to be 1.8 fs, 1.1 fs, and 2.9 fs, respectively, when integrated from 10 kHz to 40 MHz. The distinct behavior of jitter spectral density related to pulse formation mechanisms is revealed experimentally for the first time.
description: 4 pages, 3 figures
Resourcing with data: Unpacking the process of creating data-driven value propositions
Publisher: name: VU
Year: 2023
Subjects: subject: Social Sciences - Economics and business (5.2)
subject: Resourcing; Data-driven value propositions; Strategic data resources; Latent data qualities

description: This directory contains a case report created for initial exploration; the final, coded case report depicting the story of creating data-driven value propositions; a synthesis of codes leading to the process model, and figures that were reported in the final version of the paper: https://doi.org/10.1016/j.jsis.2022.101744
TURIZMNI YOSHLAR ORASIDAGI O'RNI
Creators: name: G’afforov Akmal
Publisher: name: Journal of new century innovations
Year: 2025
Subjects: yoshlar
turizm
dunyoqarash
sayohat
ijtimoiy aloqalar
tajriba
boshqarish.
молодежь
туризм
мировоззрение
путешествия
социальные отношения
опыт
менеджмент.

description: Yoshlar orasida turizm, nafaqat dam olish va sayohat qilish, balki yangi tajribalar orttirish, madaniyatlarni o'rganish, do'stlik aloqalarini rivojlantirish va shaxsiy rivojlanish uchun muhim platforma hisoblanadi. Bugungi kunda globalizatsiya va texnologik taraqqiyot tufayli yoshlar uchun turizm imkoniyatlari yanada kengaymoqda. Yoshlar sayohat qilish orqali o'zlarini kashf etish, yangi joylarni o'rganish va hayotlarini boyitish imkoniyatiga ega bo'lmoqdalar.
description: Туризм среди молодежи является важной платформой не только для отдыха и путешествий, но и для получения нового опыта, изучения культур, развития дружеских отношений и личностного развития. Сегодня, благодаря глобализации и технологическому развитию, туристические возможности для молодежи расширяются. Молодые люди имеют возможность открыть для себя себя, исследовать новые места и обогатить свою жизнь посредством путешествий.
The Curriculum and the Interface: A Componential Analysis of the Learning Curve
Creators: name: Gluck, Kevin
name: Lovett, Marsha
name: Anderson, John R.
name: Shute, Valerie J.
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: This paper presents a quantitative assessment of the importance of adaptation to the learning environment as a component of the learning curve in performance data from a computer-based tutor. In Experiment 1, verbal protocols are used to investigate the nature of changes in low-level interactions that take place during learning with a computerized tutor called Stat Lady (Shute & Gluck, 1994). The data show consistent behavioral changes in the distribution of attention, which account for a substantial portion of the learning curve, independent of error rates. These changes primarily are decreases in the verbalization of on-screen text, although the elimination of interface confusion also contributes to the efficiency gain. Experiment 2 tests the generalizability of the results in a larger population of learners. It is shown that adaptation to the learning environment accounts for a comparable proportion of the learning curve in this new population. More than half of the learning curve could be accounted for by these changes in low-level interactions. These results suggest that more accurate learning models should include a representation of increasing knowledge of the instructional environment as the model interacts with that environment. An ACT-R (Anderson & Lebiere, 1998) model is provided that reproduces the qualitative and quantitative data from the verbal protocol participants. The model reproduces these behaviors via (1) the acquisition of declarative knowledge for the structure of the problem scenarios, and (2) subsymbolic procedural tuning for more efficient goal completion.
Cohomological invariants of the stack of hyperelliptic curves of odd genus
Creators: name: Di Lorenzo, Andrea
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D23, 14H10, 14F20

description: We compute the cohomological invariants of $\mathcal{H}_g$, the moduli stack of smooth hyperelliptic curves, for every odd $g$.
description: 42 pages, we added an introduction to Rost's theory of Chow groups with coefficients and to equivariant intersection theory. To appear in Transformation Groups
title: Coup d’état in Niger: What Reactions Does International Law Permit?
Creators: name: Werle, Lukas
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2024
Subjects: subject: 340

description: In the latest Saar Blueprint, Lukas Werle examines the Coup d’état in Niger. He outlines the main events and the role of key players that led to the coup. The author then evaluates the legal admissibility and prospects of success of various measures taken by the international community, including peaceful solutions, economic sanctions, and military intervention. In particular, the role of the European Union and its possibilities for intervention are examined in detail.
description: Saar Blueprints
title: ADCO, Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Cart. 177 (11 H 289), 197 folios, f. 0337
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0337, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0337, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
title: Quo vadis europäisches Wahlrecht?: Von Spitzenkandidaten, Sperrklauseln und Quoten im Mehrebenensystem
Creators: name: Gitzen, Ralf Michael
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2024
Subjects: subject: 340

description: Im neuen Saar Expert Paper nimmt Ralf Michael Gitzen die jüngeren Reformbestrebungen im europäischen Wahlrecht zum Anlass, um diese einer eingehenden Betrachtung im Mehrebenensystem zu unterziehen. Nach einer kurzen Einführung in die verflochtene Sach- und Rechtslage wird insbesondere der Verordnungsentwurf des Europäischen Parlaments vom Mai 2022 eingeordnet, der unter anderem eine obligatorische Sperrklausel sowie eine Quotenregelung enthält. Im Rahmen dieser Untersuchung wird auch angemessen auf die noch nicht abgeschlossene Reform des Direktwahlakts aus dem Jahr 2018 eingegangen. Es werden grundgesetzliche, europarechtliche und menschenrechtliche Aspekte berücksichtigt.
description: Saar Expert Papers
The Effect of Clouds as an Additional Opacity Source on the Inferred Metallicity of Giant Exoplanets
Creators: name: Poser, Anna Julia
name: Nettelmann, Nadine
name: Redmer, Ronald
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Atmospheres regulate the planetary heat loss and therefore influence planetary thermal evolution. Uncertainty in a giant planet's thermal state contributes to the uncertainty in the inferred abundance of heavy elements it contains. Within an analytic atmosphere model, we here investigate the influence that different cloud opacities and cloud depths can have on the metallicity of irradiated extrasolar gas giants, which is inferred from interior models. In this work, the link between inferred metallicity and assumed cloud properties is the thermal profile of atmosphere and interior. Therefore, we perform coupled atmosphere, interior, and evolution calculations. The atmosphere model includes clouds in a much simplified manner; it includes long-wave absorption but neglects shortwave scattering. Within that model, we show that optically thick, high clouds have negligible influence, whereas deep-seated, optically very thick clouds can lead to warmer deep tropospheres and therefore higher bulk heavy element mass estimates. For the young hot Jupiter WASP-10b, we find a possible enhancement in inferred metallicity of up to 10% due to possible silicate clouds at $\sim$0.3 bar. For WASP-39b, whose observationally derived metallicity is higher than predicted by cloudless models, we find an enhancement by at most 50%. However, further work on cloud properties and their self-consistent coupling to the atmospheric structure is needed in order to reduce uncertainties in the choice of model parameter values, in particular of cloud opacities.
description: Published: 30 October 2019 in Atmosphere
title: Por una Historia del Derecho ancha y ajena
Creators: name: Guevara Gil, Jorge
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2024
Subjects: subject: 340

description: La historia del derecho de los pueblos indígenas y comunidades campesinas de los Andes exige ir más allá de las tradicionales fuentes históricas y revalorar las narrativas y rituales de legitimación de los derechos localmente vigentes. Recuperar las narraciones históricas en sus lugares de enunciación (espacial, temporal, cultural) también demanda dialogar con esas colectividades y sus intelectuales, sean estos indígenas, campesinos o subalternos.
description: Legal History Insights