cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Search and Product Differentiation at an Internet Shopbot
Creators: name: Brynjolfsson, Erik
name: Dick, Astrid A.
name: Smith, Michael
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Price dispersion among commodity goods is typically attributed to consumer search costs. This paper explores the magnitude of consumer search benefits and costs using a data set obtained from a major Internet shopbot. For the median consumer, the benefits to searching lower screens are $6.55 while the cost of an exhaustive search of the offers is a maximum of $6.45. This paper also estimates price elasticities and find that they are relatively high compared to offline markets, with a decrease in demand of 7 to 10 percent for each percentage increase in price, in the base model. Interestingly, in this setting, consumers who search more intensively are less price sensitive than other consumers, reflecting their increased weight on retailer differentiation in delivery time and reliability. The results demonstrate that even in this nearly-perfect market of the shopbot, substantial price dispersion can exist in equilibrium from consumers preferences over both price and non-price attributes.
Stationary and dynamical properties of finite $N$-unit Langevin models subjected to multiplicative noises
Creators: name: Hasegawa, Hideo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have studied the finite $N$-unit Langevin model subjected to multiplicative noises, by using the augmented moment method (AMM), as a continuation of our previous paper [H. Hasegawa, J. Phys. Soc. Jpn. {\bf 75} (2006) 033001]. Effects of couplings on stationary and dynamical properties of the model have been investigated. The difference and similarity between the results of diffusive and sigmoid couplings are studied in details. Time dependences of average and fluctuations in local and global variables calculated by the AMM are in good agreement with those of direct simulations (DSs). We also discuss stationary distributions of local and global variables with the use of the Fokker-Planck equation (FPE) method and DSs. It is demonstrated that stationary distributions show much variety when multiplicative noise and external inputs are taken into account.
description: 19 pages, 9 figures; accepted in Physica A with minor modifications
Causality-based Model Checking
Creators: name: Finkbeiner, Bernd
name: Kupriyanov, Andrey
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Model checking is usually based on a comprehensive traversal of the state space. Causality-based model checking is a radically different approach that instead analyzes the cause-effect relationships in a program. We give an overview on a new class of model checking algorithms that capture the causal relationships in a special data structure called concurrent traces. Concurrent traces identify key events in an execution history and link them through their cause-effect relationships. The model checker builds a tableau of concurrent traces, where the case splits represent different causal explanations of a hypothetical error. Causality-based model checking has been implemented in the ARCTOR tool, and applied to previously intractable multi-threaded benchmarks.
description: In Proceedings CREST 2017, arXiv:1710.02770
A WKB approach to scalar fields dynamics in curved space-time
Creators: name: Grain, J.
name: Barrau, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quantum fields exhibit non-trivial behaviours in curved space-times, especially around black holes or when a cosmological constant is added to the field equations. A new scheme, based on the Wentzel-Kramers-Brillouin (WKB) approximation is presented. The main advantage of this method is to allow for a better physical understanding of previously known results and to give good orders of magnitude in situations where no other approaches are currently developed. Greybody factors for evaporating black holes are rederived in this framework and the energy levels of scalar fields in the Anti-de Sitter (AdS) spacetime are accurately obtained. Stationary solutions in the Schwarzschild-Anti-de Sitter (SAdS) background are investigated. Some improvements and the basics of a line of thought for more complex situations are suggested.
description: Accepted for publication in Nucl. Phys. B
Scalable Payments Netting in Electronic Commerce
Creators: name: Anindya  Datta
name: Derigs, Ulrich
name: Thomas, Helen
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Heinz College paper
Causality and Temporal Dependencies in the Design of Fault Management Systems
Creators: name: Bozzano, Marco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Reasoning about causes and effects naturally arises in the engineering of safety-critical systems. A classical example is Fault Tree Analysis, a deductive technique used for system safety assessment, whereby an undesired state is reduced to the set of its immediate causes. The design of fault management systems also requires reasoning on causality relationships. In particular, a fail-operational system needs to ensure timely detection and identification of faults, i.e. recognize the occurrence of run-time faults through their observable effects on the system. Even more complex scenarios arise when multiple faults are involved and may interact in subtle ways. In this work, we propose a formal approach to fault management for complex systems. We first introduce the notions of fault tree and minimal cut sets. We then present a formal framework for the specification and analysis of diagnosability, and for the design of fault detection and identification (FDI) components. Finally, we review recent advances in fault propagation analysis, based on the Timed Failure Propagation Graphs (TFPG) formalism.
description: In Proceedings CREST 2017, arXiv:1710.02770
Effective kaon mass in dense baryonic matter: role of correlations
Creators: name: Waas, T.
name: Rho, M.
name: Weise, W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the effective kaon mass in dense nuclear matter. Pauli blocking and nucleon-nucleon short-range correlations are incorporated. The effects of short-range correlations are shown to be moderate and figure importantly only at densities larger than 2 times normal nuclear density. We discuss the relations between the present results and the results obtained in next-to-next-to-leading order chiral perturbation theory (${{\cal O} (Q^3)}$, where $Q$ is the characteristic small energy-momentum scale probed). We also discuss mean-field aspects, with some remarks on the relation between the short-range correlations and the four-Fermi contact terms in the chiral effective Lagrangian.
description: 20 pages, 5 figures in ps, submitted to Nucl. Phys
Revisiting Firm Size and Job Creation
Creators: name: Regateiro, Andre
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: This paper revisits the lively discussion of the relationship between firm size and job creation and the relationship between firm size and firm growth. We find that the relationship between firm size and firm growth is mediated by the industry conditions: In declining or low-growth industries smaller firms grow faster than larger ones but that relationship reverses for faster growing industries. This effect seems to be caused by a greater ability of larger firms to adapt to the economic climate. Small firms are always job creators while large firms switch from job destroyers to job creators as industry conditions improve. We also find that adapting firm growth to industry growth has impor- tant implications on firm survival. These results have important implications for public policy and the theoretical foundations of firm growth.
Chandra X-ray Observatory Study of the Orion Nebula Cluster and BN/KL Region
Creators: name: Garmire, Gordon
name: Feigelson, Eric D.
name: Broos, Patrick
name: Hillenbrand, Lynne A.
name: Pravdo, Steven H.
name: Townsley, Leisa
name: Tsuboi, Yohko
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: About 1000 X-ray emitting young pre-main sequence (PMS) stars distributed in mass from 0.05 to 50 solar masses are detected in an image of the Orion Nebula obtained with the Advanced CCD Imaging Spectrometer on board the Chandra X-ray Observatory. This is the richest field of sources ever obtained in X-ray astronomy. ACIS sources include 85-90% of V<20 stars, plus a substantial fraction of deeply embedded stars with extinctions as high as A_V~60. The relationships between X-ray and other PMS stellar properties suggest that X-ray luminosity of lower-mass PMS stars depends more on mass, and possibly stellar rotation, than on bolometric luminosity as widely reported. A subsample of unabsorbed solar-mass stars show high X-ray luminosities around L_x ~ 2 x 10^30 erg/s for the first ~2 My but diverge during 2-10 My with X-ray emission plummeting in some stars but remaining high in others. This behavior is consistent with theories of stellar rotational history and magnetic dynamos. The Becklin-Neugebauer/Kleinman-Low (BN/KL) region of massive star formation shows both unabsorbed and embedded low-mass members of the Orion Nebula Cluster, the luminous infrared Source n, and a class of sources without photospheric counterparts that may be new magnetically active embedded PMS stars. Several X-ray sources are also variable radio emitters. Faint X-ray emission is seen close to, but apparently not coincident with the BN object. Its nature is not clear.
description: 19 pages, 6 figures (3 in color). Accepted for publication in the Astronomical Journal. Electronic version of Table 1, and high-quality versions of Figs. 1 and 6, can be obtained from ftp://ftp.astro.psu.edu/pub/edf/orion
Discovery and SAR analysis of phenylbenzo[d][1,3]dioxole-based proprotein convertase subtilisin/kexin type 9 inhibitors
Creators: name: Li, Fahui
name: Zhang, Lihui
name: Feng, Jinhong
name: Zhang, Lei
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biochemistry
Cell Biology
Pharmacology
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Proprotein convertase subtilisin/kexin type 9 (PCSK9) has emerged as a novel therapeutic target for the development of cholesterol-lowering drugs. In the discovery of PCSK9/LDLR (low-density lipoprotein receptor) protein-protein interaction (PPI) impairing small molecules, a total of 47 phenylbenzo[d][1,3] dioxole-based compounds were designed and synthesised. The result revealed that the 4-chlorobenzyl substitution in the amino group is important for the PPI disrupting activity. In the hepatocyte-based functional tests, active compounds such as A12, B1, B3, B4 and B14, restored the LDLR levels on the surface of hepatic HepG2 cells and increased extracellular LDL uptake in the presence of PCSK9. It is notable that molecule B14 exhibited good performance in all the evaluations. Collectively, novel structures targeting PCSK9/LDLR PPI have been developed with hypolipidemic potential. Further structural modification of derived active compounds is promising in the discovery of lead compounds with improved activity for the treatment of hyperlipidaemia-related disorders.
title: 01_1002
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Strings as Multi-Particle States of Quantum Sigma-Models
Creators: name: Gromov, Nikolay
name: Kazakov, Vladimir
name: Sakai, Kazuhiro
name: Vieira, Pedro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the quantum Bethe ansatz equations in the O(2n) sigma-model for hysical particles on a circle, with the interaction given by the Zamolodchikovs' S-matrix, in view of its application to quantization of the string on the S^{2n-1} x R_t space. For a finite number of particles, the system looks like an inhomogeneous integrable O(2n) spin chain. Similarly to OSp(2m+n|2m) conformal sigma-model considered by Mann and Polchinski, we reproduce in the limit of large density of particles the finite gap Kazakov-Marshakov-Minahan-Zarembo solution for the classical string and its generalization to the S^5 x R_t sector of the Green-Schwarz-Metsaev-Tseytlin superstring. We also reproduce some quantum effects: the BMN limit and the quantum homogeneous spin chain similar to the one describing the bosonic sector of the one-loop N=4 super Yang-Mills theory. We discuss the prospects of generalization of these Bethe equations to the full superstring sigma-model.
description: 52 pages, 10 figures, LaTeX
title: Geographic variation of song form within and among Chestnut-sided Warbler populations
Creators: name: Byers, Bruce E.
Publisher: name: University of Massachusetts Amherst
Year: 1996
Subjects: subject: Biology

description: Chestnut-sided Warbler (Dendroica pensylvanica) song repertoires include both accented-ending (AE) and unaccented-ending (UE) songs, and the two song categories are used in different behavioral contexts. To determine if the song categories also differ in patterns of spatial distribution, I analyzed local geographic variation in song form within a Massachusetts population and also compared songs from this local population with songs from other geographic regions. I found that: (1) UE repertoires of individuals were more similar to those of nearby individuals in the local population than to those of more distant birds; (2) most UE song types and song elements tended to cluster on groups of adjacent territories; and (3) UE songs from geographically distant sites tended not to match types from the main study site. In contrast, my findings indicate that: (I) AE-repertoire similarities were not significantly related to local interindividual distances; (2) AE song types were dispersed at random over the local area; and (3) nearly all AE song types from distant sites were identical to the AE types found at the main study site. The contrast between variable, geographically clustered UE songs, and stereotyped, geographically dispersed AE songs suggests that the two song categories serve different communication functions.
On a fast integral equation method for diffraction gratings
Creators: name: Rathsfeld, Andreas
name: Schmidt, Gunther
name: Kleemann, Bernd H.
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Diffraction gratings
subject: integral equation method
subject: preconditioning
subject: fundamental solution
subject: 78M15
subject: 78A45
subject: 65R99

description: The integral equation method for the simulation of the diffraction by optical gratings is an efficient numerical tool if profile gratings determined by simple cross-section curves are considered. This method in its recent version is capable to tackle profile curves with corners, gratings with thin coated layers, and diffraction scenarios with unfavorably large ratios period over wavelength. We discuss special implementational issues including the efficient evaluation of the quasi-periodic Green kernels, the quadrature algorithm, and the iterative solution of the arising systems of linear equations. Finally, as application we present the simulation of coated echelle gratings which demonstrates the efficency of our approach.
Control of unstable steady states by strongly delayed feedback
Creators: name: Yanchuk, Serhiy
name: Wolfrum, Matthias
name: Hövel, Philipp
name: Schöll, Eckehard
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: delayed feedback
subject: large delay
subject: control
subject: 05.45.-a
subject: 05.45.Gg
subject: 02.30.Ks

description: We present an asymptotic analysis of time-delayed feedback control of steady states for large delay time. By scaling arguments, and a detailed comparison with exact solutions, we establish the parameter ranges for successful stabilization of an unstable fixed point of focus type. Insight into the control mechanism is gained by analysing the eigenvalue spectrum, which consists of a pseudo-continuous spectrum and up to two strongly unstable eigenvalues. Although the standard control scheme generally fails for large delay, we find that if the uncontrolled system is sufficiently close to its instability threshold, control does work even for relatively large delay times.
How do we know if a design space representation is useful? Insights from the DS-Viz method
Creators: name: Paravizo, Esdras
name: Crilly, Nathan
Publisher: name: Apollo - University of Cambridge Repository
Year: 2024

description: ‘Design spaces’ are at the core of how researchers frame their theories and describe designers’ exploration of problems and solutions. Despite the many alternative approaches to representing design spaces we show that studies usually overlook how their procedures, premises or parameters affect design space representations and its outcomes. To address this gap, we discuss how the development of a novel method for generating design space visualisations (DS-Viz), incorporated usefulness and accuracy aspects. Our results show that design space representations are useful to the extent they are accurate and aligned with the needs of those who make them and use them. This has broader implications for the field as it is crucial for research quality to report the premises and techniques employed when creating design spaces. We here provide a first step towards creating useful design space visualisations that can be employed in design creativity and beyond.
Counterfactual Causality from First Principles?
Creators: name: Gössler, Gregor
name: Sokolsky, Oleg
name: Stefani, Jean-Bernard
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: D.2.4; D.2.5

description: In this position paper we discuss three main shortcomings of existing approaches to counterfactual causality from the computer science perspective, and sketch lines of work to try and overcome these issues: (1) causality definitions should be driven by a set of precisely specified requirements rather than specific examples; (2) causality frameworks should support system dynamics; (3) causality analysis should have a well-understood behavior in presence of abstraction.
description: In Proceedings CREST 2017, arXiv:1710.02770
On the work distribution for the adiabatic compression of a dilute classical gas
Creators: name: Crooks, Gavin E.
name: Jarzynski, Christopher
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the adiabatic and quasi-static compression of a dilute classical gas, confined in a piston and initially equilibrated with a heat bath. We find that the work performed during this process is described statistically by a gamma distribution. We use this result to show that the model satisfies the non-equilibrium work and fluctuation theorems, but not the flucutation-dissipation relation. We discuss the rare but dominant realizations that contribute most to the exponential average of the work, and relate our results to potentially universal work distributions.
description: 4 pages
Continuum descriptions for the dynamics in discrete lattices: Derivation and justification
Creators: name: Giannoulis, Johannes
name: Herrmann, Michael
name: Mielke, Alexander
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Discrete lattice systems
subject: modulation equations
subject: Hamiltonian structure
subject: multiscale ansatz
subject: dispersive wave propagation
subject: 34C20
subject: 34E13
subject: 37K60
subject: 37K05
subject: 70F45
subject: 70K70

description: The passage from microscopic systems to macroscopic ones is studied by starting from spatially discrete lattice systems and deriving several continuum limits. The lattice system is an infinite-dimensional Hamiltonian system displaying a variety of different dynamical behavior. Depending on the initial conditions one sees quite different behavior like macroscopic elastic deformations associated with acoustic waves or like propagation of optical pulses. We show how on a formal level different macroscopic systems can be derived such as the Korteweg-de Vries equation, the nonlinear Schroedinger equation, Whitham's modulation equation, the three-wave interaction model, or the energy transport equation using the Wigner measure. We also address the question how the microscopic Hamiltonian and the Lagrangian structures transfer to similar structures on the macroscopic level. Finally we discuss rigorous analytical convergence results of the microscopic system to the macroscopic one by either weak-convergence methods or by quantitative error bounds.
The von Mises model for one-dimensional elastoplastic beams and Prandtl--Ishlinskii hysteresis operators
Creators: name: Krejčí, Pavel
name: Sprekels, Jürgen
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: elastoplasticity
subject: beam equation
subject: hysteresis operators
subject: Prandtl-Ishlinskii model
subject: von Mises model
subject: 74C05
subject: 35Q72
subject: 74N30
subject: 34C55
subject: 47J40

description: In this paper, the one-dimensional equation for the transversal vibrations of an elastoplastic beam is derived from a general three-dimensional system. The plastic behavior is modeled using the classical three-dimensional von Mises plasticity model. It turns out that this single-yield model without hardening leads after a dimensional reduction to a multi-yield one-dimensional hysteresis model with kinematic hardening, given by a hysteresis operator of Prandtl-Ishlinskii type whose density function can be determined explicitly. This result indicates that the use of Prandtl-Ishlinskii hysteresis operators in the modeling of elastoplasticity is not just a questionable phenomenological approach, but in fact quite natural. In addition to the derivation of the model, it is shown that the resulting partial differential equation with hysteresis can be transformed into an equivalent system for which the existence and uniqueness of a strong solution is proved. The proof employs techniques from the mathematical theory of hysteresis operators.
Regression methods in pricing American and Bermudan options using consumption processes
Creators: name: Belomestny, Denis
name: Milstein, Grigori N.
name: Spokoiny, Vladimir
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: American and Bermudan options
subject: low and upper bounds
subject: Monte Carlo method
subject: consumption process
subject: regression methods
subject: optimal stopping times
subject: 60H30
subject: 65C05
subject: 91B28

description: Here we develop methods for efficient pricing multidimensional discrete-time American and Bermudan options by using regression based algorithms together with a new approach towards constructing upper bounds for the price of the option. Applying sample space with payoffs at the optimal stopping times, we propose sequential estimates for continuation values, values of the consumption process, and stopping times on the sample paths. The approach admits constructing both low and upper bounds for the price by Monte Carlo simulations. The methods are illustrated by pricing Bermudan swaptions and snowballs in the Libor market model.
Superheavy nuclei in selfconsistent nuclear calculations
Creators: name: Rutz, K.
name: Bender, M.
name: Buervenich, T.
name: Schilling, T.
name: Reinhard, P. -G.
name: Maruhn, J. A.
name: Greiner, W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The shell structure of superheavy nuclei is investigated within various parametrizations of relativistic and nonrelativistic nuclear mean field models. The heaviest known even-even nucleus 264Hs is used as a benchmark to estimate the predictive value of the models. From that starting point, doubly magic spherical nuclei are searched in the region Z=110-140 and N=134-298. They are found at (Z=114, N=184), (Z=120, N=172), or at (Z=126, N=184), depending on the parametrization.
description: 16 pages RevTeX, 2 tables, 2 low resolution Gif figures (high resolution PostScript versions are available at http://www.th.physik.uni-frankfurt.de/~bender/nucl_struct_publications.html or at ftp://th.physik.uni-frankfurt.de/pub/bender ), submitted to Phys. Rev. C
title: ADCO, Comptes du Petit-Cîteaux (1477-1491) (11 H 1179), f. 00207
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179), f. 00207, 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
Returns to Specialization, Transaction Costs, and the Dynamics of Industry Evolution
Creators: name: Arora, Ashish
name: Farasat  Bokhari
name: Benoit  Morel
Publisher: name: Carnegie Mellon University
Year: 1996
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: We develop a model of industry evolution to study the process of vertical integration and disintegration (specialization). Absent industry level increasing returns, an industry will be vertically integrated in the long run if and only if transaction costs are greater than the costs of coordinating within a firm. However, convergence to the efficient industry structure may take very long and may not be monotonic: For long periods of time, the industry structure may diverge from its long run equilibrium of vertical integration. When transaction costs depend on the extent of specialization, there can be path dependence and inefficiency even in the very long run. Even when specialization is efficient, the industry may become vertically integrated.
Multiperiodicity in semiregular variables II. Systematic amplitude variations
Creators: name: Kiss, L. L.
name: Szatmary, K.
name: Szabo, Gy.
name: Mattei, J. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed lightcurve analysis for a sample of bright semiregular variables based on long-term (70--90 years) visual magnitude estimates carried out by amateur astronomers. Fundamental changes of the physical state (amplitude and/or frequency modulations, mode change and switching) are studied with the conventional Fourier- and wavelet analysis. The light curve of the carbon Mira Y Per showing a gradual amplitude decrease has been re-analysed after collecting and adding current data to earlier ones. The time scales of the sudden change and convection are compared and their similar order of magnitude is interpreted to be a possible hint for strong coupling between pulsation and convection. The periods of the biperiodic low-amplitude light curve and their ratios suggest a pulsation in the first and third overtone modes. An alternative explanation of the observed behaviour could be a period halving due to the presence of weak chaos. Beside two examples of repetitive mode changes (AF Cyg and W Cyg) we report three stars with significant amplitude modulations (RY Leo, RX UMa and RY UMa). A simple geometric model of a rotationally induced amplitude modulation in RY UMa is outlined assuming low-order nonradial oscillation, while the observed behaviour of RX UMa and RY Leo is explained as a beating of two closely separated modes of pulsation. This phenomenon is detected unambiguously in V CVn, too. The period ratios found in these stars (1.03-1.10) suggest either high-order overtone or radial+non-radial oscillation.
description: 11 pages + 17 figures, accepted for publication in A&A Supplement Series
Incorporating Epistemic Uncertainty into the Safety Assurance of Socio-Technical Systems
Creators: name: Leong, Chris
name: Kelly, Tim
name: Alexander, Rob
Publisher: name: arXiv
Year: 2017
Subjects: subject: Software Engineering (cs.SE)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In system development, epistemic uncertainty is an ever-present possibility when reasoning about the causal factors during hazard analysis. Such uncertainty is common when complicated systems interact with one another, and it is dangerous because it impairs hazard analysis and thus increases the chance of overlooking unsafe situations. Uncertainty around causation thus needs to be managed well. Unfortunately, existing hazard analysis techniques tend to ignore unknown uncertainties, and system stakeholders rarely track known uncertainties well through the system lifecycle. In this paper, we outline an approach to managing epistemic uncertainty in existing hazard analysis techniques by focusing on known and unknown uncertainty. We have created a reference populated with a wide range of safety-critical causal relationships to recognise unknown uncertainty, and we have developed a model to systematically capture and track known uncertainty around such factors. We have also defined a process for using the reference and model to assess possible causal factors that are suspected during hazard analysis. To assess the applicability of our approach, we have analysed the widely-used MoDAF architectural model and determined that there is potential for our approach to identify additional causal factors that are not apparent from individual MoDAF views. We have also reviewed an existing safety assessment example (the ARP4761 Aircraft System analysis) and determined that our approach could indeed be incorporated into that process. We have also integrated our approach into the STPA hazard analysis technique to demonstrate its feasibility to incorporate into existing techniques. It is therefore plausible that our approach can increase safety assurance provided by hazard analysis in the face of epistemic uncertainty.
description: In Proceedings CREST 2017, arXiv:1710.02770
Research Tool Patenting and Licensing and Biomedical Innovation
Creators: name: Walsh, John P.
name: Arora, Ashish
name: Cohen, Wesley M.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Over the last two decades changes in technology and policy have altered the landscape of drug discovery. These changes have led to concerns that the patent system may be creating difficulties for those trying to do research in biomedical fields. Using interviews and archival data, we examine the changes in patenting in recent years and how these have affected innovation in pharmaceuticals and related biotech industries. We find that there has in fact been an increase in patents on the inputs to drug discovery (“research tools”). However, we find that drug discovery has not been substantially impeded by these changes. We also find little evidence that university research has been impeded by concerns about patents on research tools. Restrictions on the use of patented genetic diagnostics, where we see some evidence of patents interfering with university research, are an important exception. There is, also, some evidence of delays associated with negotiating access to patented research tools, and there are areas in which patents over targets limit access and where access to foundational discoveries can be restricted. There are also cases in which research is redirected to areas with more intellectual property (IP) freedom. Still, the vast majority of respondents say that there are no cases in which valuable research projects were stopped because of IP problems relating to research inputs. We do not observe as much breakdown or even restricted access to research tools as one might expect because firms and universities have been able to develop “working solutions” that allow their research to proceed. These working solutions combine taking licenses, inventing around patents, infringement (often informally invoking a research exemption), developing and using public tools, and challenging patents in court. In addition, changes in the institutional environment, particularly new U.S. Patent and Trademark Office (USPTO) guidelines, active intervention by the National Institutes of Health (NIH), and some shift in the courts’ views toward research tool patents, appear to have further reduced the threat of breakdown and access restrictions although the environment remains uncertain. We conclude with a discussion of the potential social welfare effects of these changes in the industry and the adoption of these working solutions for dealing with a complex patent landscape. There are social costs associated with these changes, but there are also important benefits. Although we cannot rule out the possibility of new problems in the future, our results highlight some of the mechanisms that exist for overcoming these difficulties.
Improving the modulation bandwidth in semiconductor lasers by passive feedback
Creators: name: Radziunas, Mindaugas
name: Glitzky, Annegret
name: Bandelow, Uwe
name: Wolfrum, Matthias
name: Troppenz, Ute
name: Kreissl, Jochen
name: Rehbein, Wolfgang
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: semiconductor laser
subject: passive feedback
subject: modulation bandwidth
subject: direct modulation
subject: damping
subject: small signal response
subject: large signal response
subject: eye diagram
subject: 78A60
subject: 35B35
subject: 37L65
subject: 35B60
subject: 35-04
subject: 42.60.Fc
subject: 42.30.Lr
subject: 42.55.Px
subject: 73.40.-c

description: We explore the concept of passive-feedback lasers for direct signal modulation at 40 Gbit/s. Based on numerical simulation and bifurcation analysis, we explain the main mechanisms in these devices which are crucial for modulation at high speed. The predicted effects are demonstrated experimentally by means of correspondingly designed devices. In particular a significant improvement of the modulation bandwidth at low injection currents can be demonstrated.
Tanipeza callitarsis Rondani 1850
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tanypezidae
Tanipeza
Tanipeza callitarsis

description: Tanipeza callitarsis Rondani, 1850
ORIGINAL DESCRIPTION: 1850c: 181.
 TYPE LOCALITY: “ Venezuela ”.
 TYPE MATERIAL: 1 ♂, holotype (MRSN: Box 1755): Tanipeza Fall. callitarsis Rndn., Venezuela / Tanipeza callitarsis Rond. 1850: 181, Venezuela.
 CURRENT STATUS: valid species, unplaced to genus of Tanypezidae (Steyskal 1967a: 3); valid species, as Neotanypeza callitarsis (Lonsdale 2013: 19, Lonsdale 2014: 415).
 REMARKS: Rondani (1850c: 181) described Tanipeza callitarsis from just the male sex, without specifying the exact number of specimens, but giving a single measurement of length, from material received from E. Truqui. Lonsdale (2013: 19) reported having studied the MRSN holotype. Rondani described this nominal species under the generic name Tanipeza, which is an “unjustified emendation of Tanypeza Fallén, 1820 ” (O’Hara et al. 2011: 174).
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 369, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
The Castalia Mission to Main Belt Comet 133P/Elst-Pizarro
Creators: name: Snodgrass, C.
name: Jones, G. H.
name: Boehnhardt, H.
name: Gibbings, A.
name: Homeister, M.
name: Andre, N.
name: Beck, P.
name: Bentley, M. S.
name: Bertini, I.
name: Bowles, N.
name: Capria, M. T.
name: Carr, C.
name: Ceriotti, M.
name: Coates, A. J.
name: Della Corte, V.
name: Hanna, K. L. Donaldson
name: Fitzsimmons, A.
name: Gutierrez, P. J.
name: Hainaut, O. R.
name: Herique, A.
name: Hilchenbach, M.
name: Hsieh, H. H.
name: Jehin, E.
name: Karatekin, O.
name: Kofman, W.
name: Lara, L. M.
name: Laudan, K.
name: Licandro, J.
name: Lowry, S. C.
name: Marzari, F.
name: Masters, A.
name: Meech, K. J.
name: Moreno, F.
name: Morse, A.
name: Orosei, R.
name: Pack, A.
name: Plettemeier, D.
name: Prialnik, D.
name: Rotundi, A.
name: Rubin, M.
name: Sanchez, J. P.
name: Sheridan, S.
name: Trieloff, M.
name: Winterboer, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We describe Castalia, a proposed mission to rendezvous with a Main Belt Comet (MBC), 133P/Elst-Pizarro. MBCs are a recently discovered population of apparently icy bodies within the main asteroid belt between Mars and Jupiter, which may represent the remnants of the population which supplied the early Earth with water. Castalia will perform the first exploration of this population by characterising 133P in detail, solving the puzzle of the MBC's activity, and making the first in situ measurements of water in the asteroid belt. In many ways a successor to ESA's highly successful Rosetta mission, Castalia will allow direct comparison between very different classes of comet, including measuring critical isotope ratios, plasma and dust properties. It will also feature the first radar system to visit a minor body, mapping the ice in the interior. Castalia was proposed, in slightly different versions, to the ESA M4 and M5 calls within the Cosmic Vision programme. We describe the science motivation for the mission, the measurements required to achieve the scientific goals, and the proposed instrument payload and spacecraft to achieve these.
description: Accepted for publication in Advances in Space Research (special issue on Small Body Exploration). 30 pages
Weak Disorder in Fibonacci Sequences
Creators: name: Ben-Naim, E.
name: Krapivsky, P. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study how weak disorder affects the growth of the Fibonacci series. We introduce a family of stochastic sequences that grow by the normal Fibonacci recursion with probability 1-epsilon, but follow a different recursion rule with a small probability epsilon. We focus on the weak disorder limit and obtain the Lyapunov exponent, that characterizes the typical growth of the sequence elements, using perturbation theory. The limiting distribution for the ratio of consecutive sequence elements is obtained as well. A number of variations to the basic Fibonacci recursion including shift, doubling, and copying are considered.
description: 4 pages, 2 figures
Invariant manifolds for random dynamical systems with slow and fast variables
Creators: name: Schmalfuss, Björn
name: Schneider, Klaus R.
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Random dynamical systems
subject: fast-slow system
subject: slow manifold
subject: inertial manifold
subject: 37H10
subject: 37L25
subject: 70K70

description: We consider random dynamical systems with slow and fast variables driven by two independent metric dynamical systems modelling stochastic noise. We establish the existence of a random inertial manifold eliminating the fast variables. If the scaling parameter tends to zero, the inertial manifold tends to another manifold which is called the slow manifold. We achieve our results by means of a fixed point technique based on a random graph transform. To apply this technique we need an asymptotic gap condition.
Microscopic calculations of stopping and flow from 160AMeV to 160AGeV
Creators: name: Winckelmann, L. A.
name: Bass, S. A.
name: Bleicher, M.
name: Brandstetter, M.
name: Dumitru, A.
name: Ernst, C.
name: Gerland, L.
name: Konopka, J.
name: Soff, S.
name: Spieles, C.
name: Weber, H.
name: Hartnack, C.
name: Aichelin, J.
name: Amelin, N.
name: Stöcker, H.
name: Greiner, W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The behavior of hadronic matter at high baryon densities is studied within Ultrarelativistic Quantum Molecular Dynamics (URQMD). Baryonic stopping is observed for Au+Au collisions from SIS up to SPS energies. The excitation function of flow shows strong sensitivities to the underlying equation of state (EOS), allowing for systematic studies of the EOS. Effects of a density dependent pole of the $ρ$-meson propagator on dilepton spectra are studied for different systems and centralities at CERN energies.
description: Proceedings of the Quark Matter '96 Conference, Heidelberg, Germany
Additional file 1 of Impact of gender differences on hemostasis in patients after coronary artery bypass grafts surgeries in the context of tranexamic acid administration
Creators: name: Wang, Enshi
name: Wang, Yang
name: Hu, Shengshou
name: Yuan, Su
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Science Policy

description: Additional file 1: Supplementary Information.
Intermediate-asymptotic structure of a dewetting rim with strong slip
Creators: name: Evans, Peter L.
name: King, John R.
name: Münch, Andreas
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Lubrication theory
subject: evolution
subject: slip models
subject: 76D08
subject: 76A20
subject: 34E10

description: When a thin viscous liquid film dewets, it typically forms a rim which spreads outwards, leaving behind a growing dry region. We consider the dewetting behaviour of a film, when there is strong slip at a liquid-substrate interface. The film can be modelled by two coupled partial differential equations (PDEs) describing the film thickness and velocity. Using asymptotic methods, we describe the structure of the rim as it evolves in time, and the rate of dewetting, in the limit of large slip lengths. An inner region emerges, closest to the dewetted region, where surface tension is important; in an outer region, three subregions develop. This asymptotic description is compared with numerical solutions of the full system of PDEs.
Reforming the Eighth-Grade Student Assignment Process for the Philadelphia Public Schools
Creators: name: Johnson, Michael P.
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: The eighth-grade student assignment project is an initiative of the School District of Philadelphia that assigns students to high school academic programs based on student preferences, academic preparation, program capacity and desegregation requirements. This paper describes recent modifications to the eighth-grade student assignment process that resulted in: a comprehensive, realistic description of business processes, a new, more accurate method for recording family preferences and modifications to the student assignment process that better reflects student preferences and system constraints. We describe other recommendations not yet implemented, including more flexible program reporting to families, a relational database to meet future student processing needs, customer service via the Internet and management science models to automate the assignment process.
Gravity and the Structure of Noncommutative Algebras
Creators: name: Buric, M.
name: Grammatikopoulos, T.
name: Madore, J.
name: Zoupanos, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A gravitational field can be defined in terms of a moving frame, which when made noncommutative yields a preferred basis for a differential calculus. It is conjectured that to a linear perturbation of the commutation relations which define the algebra there corresponds a linear perturbation of the gravitational field. This is shown to be true in the case of a perturbation of Minkowski space-time.
description: 17 pages