cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Two-stage energy release process of a confined flare with double HXR peaks
Creators: name: Ning, Hao
name: Chen, Yao
name: Wu, Zhao
name: Su, Yang
name: Tian, Hui
name: Li, Gang
name: Du, Guohui
name: Song, Hongqiang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A complete understanding of the onset and subsequent evolution of confined flares has not been achieved. Earlier studies mainly analyzed disk events so as to reveal their magnetic topology and cause of confinement. In this study, taking advantage of a tandem of instruments working at different wavelengths of X-rays, EUVs, and microwaves, we present dynamic details of a confined flare observed on the northwestern limb of the solar disk on July 24th, 2016. The entire dynamic evolutionary process starting from its onset is consistent with a loop-loop interaction scenario. The X-ray profiles manifest an intriguing double-peak feature. From spectral fitting, it is found that the first peak is non-thermally dominated while the second peak is mostly multi-thermal with a hot (~10 MK) and a super-hot (~30 MK) component. This double-peak feature is unique in that the two peaks are clearly separated by 4 minutes, and the second peak reaches up to 25-50 keV; in addition, at energy bands above 3 keV the X-ray fluxes decline significantly between the two peaks. This, together with other available imaging and spectral data, manifest a two-stage energy release process. A comprehensive analysis is carried out to investigate the nature of this two-stage process. We conclude that the second stage with the hot and super-hot sources mainly involves direct heating through loop-loop reconnection at a relatively high altitude in the corona. The uniqueness of the event characteristics and complete data set make the study a nice addition to present literature on solar flares.
description: 12 pages (text), 8 figures, The Astrophysical Journal
Online Data Mining for Co-Evolving Time Sequences
Creators: name: Byoung-Kee  Yi
name: N. D. Sidiropoulos
name: Johnson, Theodore
name: H. V. Jagadish
name: Faloutsos, Christos
name: Biliris, Alexandros
Publisher: name: Carnegie Mellon University
Year: 1983
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In many applications, the data of interest comprises multiple sequences that evolve over time. Examples include currency exchange rates and network traffic data. We develop a fast method to analyze such co-evolving time sequences jointly to allow (a) estimation/forecasting of missing/delayed/future values, (b) quantitative data mining, and (c) outlier detection. Our method, MUSCLES, adapts to changing correlations among time sequences. It can handle indefinitely long sequences efficiently using an incremental algorithm and requires only a small amount of storage and less I/O operations. To make it scale for a large number of sequences, we present a variation, the Selective MUSCLES method and propose an efficient algorithm to reduce the problem size. Experiments on real datasets show that MUSCLES outperforms popular competitors in prediction accuracy up to 10 times, and discovers interesting correlations. Moreover, Selective MUSCLES scales up very well for large numbers of sequences, reducing response time up to 110 times over MUSCLES, and sometimes even improves the prediction quality
Gravitational dynamics of an infinite shuffled lattice: early time evolution and universality of non-linear correlations
Creators: name: Baertschiger, Thierry
name: Joyce, Michael
name: Labini, Francesco Sylos
name: Marcos, Bruno
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In two recent articles a detailed study has been presented of the out of equilibrium dynamics of an infinite system of self-gravitating points initially located on a randomly perturbed lattice. In this article we extend the treatment of the early time phase during which strong non-linear correlations first develop, prior to the onset of ``self-similar'' scaling in the two point correlation function. We establish more directly, using appropriate modifications of the numerical integration, that the development of these correlations can be well described by an approximation of the evolution in two phases: a first perturbative phase in which particles' displacements are small compared to the lattice spacing, and a subsequent phase in which particles interact only with their nearest neighbor. For the range of initial amplitudes considered we show that the first phase can be well approximated as a transformation of the perturbed lattice configuration into a Poisson distribution at the relevant scales. This appears to explain the ``universality'' of the spatial dependence of the asymptotic non-linear clustering observed from both shuffled lattice and Poisson initial conditions.
description: 11 pages, 11 figures, shortened introductory sections and other minor modifications, version to appear in Phys. Rev. E
Online Algorithms for Market Clearing
Creators: name: Avrim  Blum
name: Sandholm, Tuomas W.
name: Zinkevich, Martin
Publisher: name: Carnegie Mellon University
Year: 1982
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this article, we study the problem of online market clearing where there is one commodity in the market being bought and sold by multiple buyers and sellers whose bids arrive and expire at different times. The auctioneer is faced with an online clearing problem of deciding which buy and sell bids to match without knowing what bids will arrive in the future. For maximizing profit, we present a (randomized) online algorithm with a competitive ratio of ln(pmax − pmin) + 1, when bids are in a range [pmin, pmax], which we show is the best possible. A simpler algorithm has a ratio twice this, and can be used even if expiration times are not known. For maximizing the number of trades, we present a simple greedy algorithm that achieves a factor of 2 competitive ratio if no money-losing trades are allowed. We also show that if the online algorithm is allowed to subsidize matches---match money-losing pairs if it has already collected enough money from previous pairs to pay for them---then it can actually be 1-competitive with respect to the optimal offline algorithm that is not allowed subsidy. That is, for maximizing the number of trades, the ability to subsidize is at least as valuable as knowing the future. We also consider objectives of maximizing buy or sell volume and social welfare. We present all of these results as corollaries of theorems on online matching in an incomplete interval graph.We also consider the issue of incentive compatibility, and develop a nearly optimal incentive-compatible algorithm for maximizing social welfare. For maximizing profit, we show that no incentive-compatible algorithm can achieve a sublinear competitive ratio, even if only one buy bid and one sell bid are alive at a time. However, we provide an algorithm that, under certain mild assumptions on the bids, performs nearly as well as the best fixed pair of buy and sell prices, a weaker but still natural performance measure. This latter result uses online learning methods, and we also show how such methods can be used to improve our “optimal” algorithms to a broader notion of optimality. Finally, we show how some of our results can be generalized to settings in which the buyers and sellers themselves have online bidding strategies, rather than just each having individual bids.
Response Functions for Detectors in Cosmic Ray Neutron Sensing
Creators: name: Köhli, M.
name: Schrön, M.
name: Schmidt, U.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Cosmic-Ray Neutron Sensing (CRNS) is a novel technique for determining environmental water content by measuring albedo neutrons in the epithermal to fast energy range with moderated neutron detectors. We have investigated the response function of stationary and mobile neutron detectors typically used for environmental research in order to improve the model accuracy for neutron transport studies. Monte Carlo simulations have been performed in order to analyze the detection probability in terms of energy-dependent response and angular sensitivity for different variants of CRNS detectors and converter gases. Our results reveal the sensor's response to neutron energies from 0.1 eV to 1 MeV and highest sensitivity to vertical fluxes. The detector efficiency shows good agreement with reference data from the structurally similar Bonner Spheres. The relative probability of neutrons contributing to the overall integrated signal is especially important in regions with non-uniform albedo fluxes, such as complex terrain or heterogeneous distribution of hydrogen pools.
description: 18 pages, 7 figures
On-Line Algorithms for Combining Language Models
Creators: name: Kalai, Adam
name: Chen, Stanley F
name: Avrim Blum
name: Rosenfeld, Roni
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Multiple language models are combined for many tasks in language modeling, such as domain and topic adaptation. In this work, we compare on-line algorithms from machine learning to existing algorithms for combining language models. On-line algorithms developed for this problem have parameters that are updated dynamically to adapt to a data set during evaluation. On-line analysis provides guarantees that these algorithms will perform nearly as well as the best model chosen in hindsight from a large class of models, e.g., the set of all static mixtures. We describe several on-line algorithms and present results comparing these techniques with existing language modeling combination methods on the task of domain adaptation. We demonstrate that in some situations, on-line techniques can significantly outperform static mixtures (by over 10% in terms of perplexity), and are especially effective when the nature of the test data is unknown or changesover time.
The need for an early anti-neutrino run of NOvA
Creators: name: Prakash, Suprabh
name: Rahaman, Ushak
name: Sankar, S. Uma
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The moderately large value of $\ty$, measured recently by reactor experiments, is very welcome news for the future neutrino experiments. In particular, the \nova experiment, with 3 years each of $ν$ and $\anu$ runs, will be able to determine the mass hierarchy if one of the following two favourable combinations is true: normal hierarchy with $-180^\circ \leq \dcp \leq 0$ or inverted hierarchy with $0\leq \dcp \leq 180^\circ$. In this report, we study the hierarchy reach of the first 3 years of \nova data. Since $\sin^2 2 \tz$ is measured to be non-maximal, $\tz$ can be either in the lower or higher octant. Pure $ν$ data is affected by $\ty$-hierarchy and octant-hierarchy degeneracies, which limit the hierarchy sensitivity of such data. A combination of $ν$ and $\anu$ data is not subject to these degeneracies and hence has much better hierarchy discrimination capability. We find that, with a 3 year $ν$ run, hierarchy determination is possible for only two of the four octant-hierarchy combinations. Equal 1.5 year runs in $ν$ and $\anu$ modes give good hierarchy sensitivity for all the four combinations.
One Picture is Worth a Dozen Connectives: A Fault-Tree Representation of NPATRL Security Requirements
Creators: name: Iliano Cervesato
name: Meadows, Catherine
Publisher: name: Carnegie Mellon University
Year: 1986
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this paper we show how we can increase the ease of reading and writing security requirements for cryptographic protocols at the Dolev-Yao level of abstraction by developing a visual language based on fault trees. We develop such a semantics for a subset of NPATRL, a temporal language used for expressing safety requirements for cryptographic protocols, and show that the subset is sound and complete with respect to the semantics. We also show how the fault trees can be used to improve the presentation of some specifications that we developed in our analysis of the Group Domain of Interpretation (GDOI) protocol. Other examples involve a property of Kerberos 5, and a visual account of the requirements in Lowe’s authentication hierarchy.
Gel-forming patchy colloids and network glass formers: Thermodynamic and Dynamic analogies
Creators: name: Sciortino, Francesco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This article discusses recent attempts to provide a deeper understanding of the thermoreversible "gel" state of colloidal matter and to unravel the analogies between gels at the colloidal level and gels at the molecular level, commonly known as network-forming strong liquids. The connection between gel-forming patchy colloids and strong liquids is provided by the limited valence of the inter-particle interactions, i.e. by the presence of a limit in the number of bonded nearest neighbors.
description: Proceeding of Stat-Phys 2007. EPJB in press
Choreographic and Somatic Approaches for the Development of Expressive Robotic Systems
Creators: name: LaViers, Amy
name: Cuan, Catie
name: Heimerdinger, Madison
name: Huzaifa, Umer
name: Maguire, Catherine
name: McNish, Reika
name: Nilles, Alexandra
name: Pakrasi, Ishaan
name: Bradley, Karen
name: Mata, Kim Brooks
name: Chakraborty, Novoneel
name: Vidrin, Ilya
name: Zurawski, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: As robotic systems are moved out of factory work cells into human-facing environments questions of choreography become central to their design, placement, and application. With a human viewer or counterpart present, a system will automatically be interpreted within context, style of movement, and form factor by human beings as animate elements of their environment. The interpretation by this human counterpart is critical to the success of the system's integration: knobs on the system need to make sense to a human counterpart; an artificial agent should have a way of notifying a human counterpart of a change in system state, possibly through motion profiles; and the motion of a human counterpart may have important contextual clues for task completion. Thus, professional choreographers, dance practitioners, and movement analysts are critical to research in robotics. They have design methods for movement that align with human audience perception, can identify simplified features of movement for human-robot interaction goals, and have detailed knowledge of the capacity of human movement. This article provides approaches employed by one research lab, specific impacts on technical and artistic projects within, and principles that may guide future such work. The background section reports on choreography, somatic perspectives, improvisation, the Laban/Bartenieff Movement System, and robotics. From this context methods including embodied exercises, writing prompts, and community building activities have been developed to facilitate interdisciplinary research. The results of this work is presented as an overview of a smattering of projects in areas like high-level motion planning, software development for rapid prototyping of movement, artistic output, and user studies that help understand how people interpret movement. Finally, guiding principles for other groups to adopt are posited.
description: Under review at MDPI Arts Special Issue "The Machine as Artist (for the 21st Century)" http://www.mdpi.com/journal/arts/special_issues/Machine_Artist
Epitaxial aluminium-nitride tunnel barriers grown by nitridation with a plasma source
Creators: name: Zijlstra, T.
name: Lodewijk, C. F. J.
name: Vercruyssen, N.
name: Tichelaar, F. D.
name: Loudkov, D. N.
name: Klapwijk, T. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High critical current-density (10 to 420 kA/cm^2) superconductor-insulator-superconductor tunnel junctions with aluminium nitride barriers have been realized using a remote nitrogen plasma from an inductively coupled plasma source operated in a pressure range of 10^{-3} to 10^{-1} mbar. We find a much better reproducibility and control compared to previous work. From the current-voltage characteristics and cross-sectional TEM images it is inferred that, compared to the commonly used AlO_x barriers, the poly-crystalline AlN barriers are much more uniform in transmissivity, leading to a better quality at high critical current-densities.
description: 3 pages, 3 figures, accepted for publication in APL
Alternate Definitions of Loop Corrections to the Primordial Power Spectra
Creators: name: Miao, S. P.
name: Park, Sohyun
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider two different definitions for loop corrections to the primordial power spectra. One of these is to simply correct the mode functions in the tree order relations using the linearized effective field equations. The second definition involves the spatial Fourier transform of the 2-point correlator. Although the two definitions agree at tree order, we show that they disagree at one loop using the Schwinger-Keldysh formalism, so there are at least two plausible ways of loop correcting the tree order result. We discuss the advantages and disadvantages of each.
description: 35 pages, 2 figures; modified section 3 and added four appendices
On-demand multicast routing in ad hoc networks with unidirectional links
Creators: name: Jetcheva, Jorjeta G.
name: Johnson, David B.
Publisher: name: Carnegie Mellon University
Year: 2004
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "Many techniques used by routing protocols for ad hoc networks assume that links in the network can be used equally well in both directions between the two endpoint nodes of the link. However, there are many real-world situations in which wireless links may physically work in only one direction, resulting in degradation of routing performance in the network. In this paper, we present the first study of the effect of unidirectional links on the performance of on-demand multicast routing protocols for ad hoc networks and present mechanisms that enable such protocols to route efficiently over unidirectional links. We evaluate these mechanisms in the context of the Adaptive Demand-Driven Multicast Routing protocol (ADMR), and simulate the extended protocol, ADMR-U, in a wide range of mobile and static network scenarios with unidirectional links. In networks with only bidirectional links, the unidirectional extensions do not get activated and cause no overhead; in networks with unidirectional links, ADMR-U matches or outperforms ADMR in terms of packet delivery ratio, and lowers ADMR's packet overhead."
Curvature from strong gravitational lensing: a spatially closed Universe or systematics?
Creators: name: Li, Zhengxiang
name: Ding, Xuheng
name: Wang, Guo-Jian
name: Liao, Kai
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Model-independent constraints on the spatial curvature are not only closely related to important problems such as the evolution of the Universe and properties of dark energy, but also provide a test of the validity of the fundamental Copernican principle. In this paper, with the distance sum rule in the Friedmann-Lemaître-Robertson-Walker metric, we achieve model-independent measurements of the spatial curvature from the latest type Ia supernovae and strong gravitational lensing (SGL) observations. We find that a spatially closed Universe is preferred. Moreover, by considering different kinds of velocity dispersion and subsample, we study possible factors which might affect model-independent estimations for the spatial curvature from SGL observations. It is suggested that the combination of observational data from different surveys might cause a systematic bias and the tension between the spatially flat Universe and SGL observations is alleviated when the subsample only from the Sloan Lens ACS Survey is used or a more complex treatment for the density profile of lenses is considered.
description: 9 pages, 6 figures, 3 tables, to appear in ApJ
Localization phenomena in a DNA double helix structure : A twisted ladder model
Creators: name: Kundu, Sourav
name: Karmakar, S. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we propose a model for DNA double helix within the tight-binding framework that incorporates the helicity of the molecules. We have studied localization properties of three DNAsequences,the periodic poly(dG)-poly(dC) and poly(dA)-poly(dT) sequences and the random ATGCsequence, all of which are coupled to backbone withrandom site energies representing the environmentalfluctuations. We observe that due to helicity of DNA, electron transport is greatly enhancedand there exists almost a disorder-strength independent critical value of the hopping integral, thataccounts for helicity of DNA, for which the electronic states become maximally extended. We havealso investigated the effect of backbone energetics on the transmission and I-V characteristics of DNA.
description: 7 pages,19 figures
Repulsive Casimir force in Bose-Einstein Condensate
Creators: name: Faruk, Mir Mehedi
name: Biswas, Shovon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the Casimir effect for a three dimensional system of ideal free massive Bose gas in a slab geometry with Zaremba and anti-periodic boundary conditions. It is found that for these type of boundary conditions the resulting Casimir force is repulsive in nature, in contrast with usual periodic, Dirichlet or Neumann boundary condition where the Casimir force is attractive (Martin P. A. and Zagrebnov V. A., Europhys. Lett., 73 (2006) 15.). Casimir forces in these boundary conditions also maintain a power law decay function below condensation temperature and exponential decay function above the condensation temperature albeit with a positive sign, identifying the repulsive nature of the force.
X-ray afterglow light curves : toward standard candle ?
Creators: name: Gendre, B.
name: Galli, A.
name: Boer, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the clustering of afterglow light curves observed at X-ray and optical wavelengths. We have constructed a sample of 61 bursts with known dis tance and X-ray afterglow. This sample includes bursts observed by BeppoSAX, XMM-Newton, Chandra, and SWIFT. We correct the light curves for cosmological ef fects and compare the observed X-ray fluxes one day after the burst. We check for correlations between the observed flux and the burst spectral and temporal properties. We confirm the previous result of Boer and Gendre (2000) that X-ray afterglow light curves cluster in luminosity, even when we consider the l ast SWIFT data. We observe this clustering only for the afterglow light curves; the inclusion of prompt-related data broaden the distribution. A similar clu stering is observed for the optical light curves; GRB sources can be divided in three classes, namely optical and X-ray bright afterglows, optical and X-ray dim ones, and optically bright -X-ray dim ones. We argue that this clustering is related to the fireball total energy, the external medium density, the fraction of fireball energy going in relativistic electrons and magnetic fields. These parameters can be either fixed to a standard va lue, or correlated. We finally propose a method for the estimation of the GRB source redshift based on the observed X-ray flux one day after the burst and optical properties. Using this method, we compute a redshift of 1.4 +/- 0.2 for GRB 980519 and of 1.9 \+/- 0.3 for GRB 040827. We tested this method on three recently detected SWIFT GRBs with known redshift, and found it in good agreement with the reported distance from optical spectroscopy .
description: 17 pages, 10 color figures, 1 b&w figure. Accepted for publication by ApJ
On the Unusual Effectiveness of Logic in Computer Science
Creators: name: Halpern, Joseph Y.
name: Harper, Robert
name: Immerman, Neil
name: Phokion G. Kolaitis
name: Vardi, Moshe Y.
name: Vianu, Victor
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In 1960, E.P.Wigner, a joint winner of the 1963 Nobel Prize for Physics, published a paper titled On the Unreasonable Effectiveness of Mathematics in the Natural Sciences [Wig60]. This paper can be construed as an examination and affirmation of Galileo’s tenet that “The book of nature is written in the language of mathematics”. To this effect, Wigner presented a large number of examples that demonstrate the effectiveness of mathematics in accurately describing physical phenomena. Wigner viewed these examples as illustrations of what he called the empirical law of epistemology, which asserts that the mathematical formulation of the laws of nature is both appropriate and accurate, and that mathematics is actually the correct language for formulating the laws of nature. At the same time, Wigner pointed out that the reasons for the success of mathematics in the natural sciences are not completely understood; in fact, he went as far as asserting that “ . . . the enormous usefulness of mathematics in the natural sciences is something bordering on the mysterious and there is no rational explanation for it.”
Pattern avoidance and the Bruhat order on involutions
Creators: name: Hultman, Axel
name: Vorwerk, Kathrin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We show that the principal order ideal below an element w in the Bruhat order on involutions in a symmetric group is a Boolean lattice if and only if w avoids the patterns 4321, 45312 and 456123. Similar criteria for signed permutations are also stated. Involutions with this property are enumerated with respect to natural statistics. In this context, a bijective correspondence with certain Motzkin paths is demonstrated.
description: 14 pages, 5 figures
Hydrodynamics with gas-grain chemistry and radiative transfer: comparing dynamical and static models
Creators: name: Sipilä, O.
name: Caselli, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We quantify if the chemical abundance gradients given by a dynamical model of core collapse including time-dependent changes in density and temperature differ greatly from abundances derived from static models, where the density and temperature structures of the core are kept fixed as the chemistry evolves. For this study we developed a new one-dimensional spherically symmetric hydrodynamics code that couples the hydrodynamics equations with a comprehensive time-dependent gas-grain chemical model, including deuterium and spin-state chemistry, and radiative transfer calculations to derive self-consistent time-dependent chemical abundance gradients. We applied the code to model the collapse of a starless core up to the point when the infall flow becomes supersonic. The abundances predicted by the dynamical and static models are almost identical during the quiescent phase of core evolution, but the results start to diverge after the onset of core collapse, where the static model underestimates abundances at high medium density (inner core) and underestimates them at low density (outer core), and this is clearly reflected in simulated lines. The static model generally overestimates deuteration, which is increasingly evident the more D atoms are substituted in the molecule. We also find that using a limited chemical network, or a limited set of cooling molecules, may lead to an overestimate of the collapse timescale, and in some cases may prevent the collapse altogether. In our model, most of the line cooling near the center of the core is due to HCN, CO, and NO. In conclusion, the use of a static physical model is not a reliable method of simulating chemical abundances in starless cores after the onset of gravitational collapse. The adoption of complex chemistry and a comprehensive set of cooling molecules is necessary to model the collapse adequately.
description: Accepted by A&A; 15 pages, 12 figures, 5 tables; arXiv abstract heavily modified and redacted from the original
Boundary regularity for the porous medium equation
Creators: name: Björn, Anders
name: Björn, Jana
name: Gianazza, Ugo
name: Siljander, Juhana
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K20 (Primary) 35B51, 35B65, 35K10, 35K55, 35K65 (Secondary)

description: We study the boundary regularity of solutions to the porous medium equation $u_t = Δu^m$ in the degenerate range $m>1$. In particular, we show that in cylinders the Dirichlet problem with positive continuous boundary data on the parabolic boundary has a solution which attains the boundary values, provided that the spatial domain satisfies the elliptic Wiener criterion. This condition is known to be optimal, and it is a consequence of our main theorem which establishes a barrier characterization of regular boundary points for general -- not necessarily cylindrical -- domains in ${\bf R}^{n+1}$. One of our fundamental tools is a new strict comparison principle between sub- and superparabolic functions, which makes it essential for us to study both nonstrict and strict Perron solutions to be able to develop a fruitful boundary regularity theory. Several other comparison principles and pasting lemmas are also obtained. In the process we obtain a rather complete picture of the relation between sub/super\-para\-bolic functions and weak sub/super\-solu\-tions.
description: 40 pages
Efficacy of Probiotics Compared With Pharmacological Treatments for Maintenance Therapy for Functional Constipation in Children: A Systematic Review and Network Meta-analysis
Creators: name: Harris, Rebecca G
name: Neale, Elizabeth
name: Batterham, Marijka
Publisher: name: University of Wollongong
Year: 2025
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 3202
subject: Clinical sciences
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: ContextThere has been an increase in randomized controlled trials (RCTs) comparing probiotics with various maintenance therapies, such as polyethylene glycol, lactulose, and mineral oil, to treat functional constipation in children.ObjectiveThe aim was to compare probiotics with all other oral maintenance therapies for functional constipation in children and rank all treatments in terms of effectiveness in a network meta-analysis.MethodsRCTs were identified through systematically searching the MEDLINE, Scopus, EMBASE, and Cochrane Library databases, trial registries, and forward and backward citation searching. Within-study risk of bias was assessed using the Cochrane Risk of Bias 2 tool, and confidence in the estimates was assessed using the CINeMA (Confidence in Network Meta-Analysis) framework. Random-effects network meta-analyses were conducted.ResultsData were pooled from 41 and 29 RCTs for network meta-analysis of defecation frequency and treatment success, respectively. Probiotics did not significantly increase the number of bowel movements per week when compared with any conventional treatment or placebo. A combination of mineral oil and probiotics was the most effective treatment for increasing defecation frequency (mean difference: 3.13; 95% confidence interval [CI]: 0.64, 5.63). The most effective treatments for increasing the risk of treatment success as compared with placebo were mineral oil (relative risk [RR]: 2.41; 95% CI: 1.53, 3.81) and a combined treatment of polyethylene glycol and lactulose (RR: 2.45; 95% CI: 1.21, 4.97). Confidence in the estimates ranged from very low to moderate.ConclusionCurrently, there is no evidence to suggest that probiotics should be used as a standalone treatment for functional constipation in children. More high-quality studies are needed to evaluate different strains of probiotics and their potential benefit as an additional treatment component to conventional treatments. Mineral oil and polyethylene glycol were the most effective treatments to increase defecation frequency and treatment success rates and should remain the first line of treatment for children with functional constipation.Systematic review registrationPROSPERO registration no.CRD42022360977 (https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=360977).
title: ADCO, Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Cart. 29 (G 134), 996 folios, f. 0726
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/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0726, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0726, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
On the Fukaya category of a Fano hypersurface in projective space
Creators: name: Sheridan, Nick
Publisher: name: arXiv
Year: 2013
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: This paper is about the Fukaya category of a Fano hypersurface $X \subset \mathbb{CP}^n$. Because these symplectic manifolds are monotone, both the analysis and the algebra involved in the definition of the Fukaya category simplify considerably. The first part of the paper is devoted to establishing the main structures of the Fukaya category in the monotone case: the closed-open string maps, weak proper Calabi-Yau structure, Abouzaid's split-generation criterion, and their analogues when weak bounding cochains are included. We then turn to computations of the Fukaya category of the hypersurface $X$: we construct a configuration of monotone Lagrangian spheres in $X$, and compute the associated disc potential. The result coincides with the Hori-Vafa superpotential for the mirror of $X$ (up to a constant shift in the Fano index $1$ case). As a consequence, we give a proof of Kontsevich's homological mirror symmetry conjecture for $X$. We also explain how to extract non-trivial information about Gromov-Witten invariants of $X$ from its Fukaya category.
description: 127 pages, 7 figures. Minor changes in response to referee's comments, fixed small errors. Proposition 2.9 and Corollary 2.11 of the new version strengthen results from the previous version
Spin Hall effect and circular birefringence in polymers
Creators: name: Takayama, Osamu
name: Puentes, Graciana
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate experimentally the fine lateral circular birefringence of a tunable birefringent polymer, the first example of the spin Hall effect of light in a polymeric material. We report experimental observations of this effect using polarimetric techniques and quantum-weak-measurement techniques, reporting a weak amplification factor of 200.
description: 5 pages, 4 figures
T. Livii Ab Urbe Condita Libri
Creators: name: Livius, Titus
Publisher: name: G. Reimer
Year: 1829

description: Recognovit Immanuel Bekkerus ; Selectas Virorum Doctorum Notas In Usum Schoarum Addidit M. F. E. Raschig
description: Mit Exlibris von Conrad Ferdinand Meyer Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek
description: Aus dem Vorbesitz von Conrad Ferdinand Meyer Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek
description: Mit handschriftlichen Besitzeintrag auf rechte obere Ecke des Vorsatzblattes: "C. Meyer. / 1844." Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek; CFM K 307 : 1
description: Mit zusätzlichem Eintrag auf beiden Seiten des Vorsatzblattes. Vorne: "Der blinde Wanderer schreitet / am Mittag heiss u: bang / den kühlen Quell vorüber / den dunklen Wald entlang / Da dauert Wald und Quelle / der arme blinde Mann / sie sinnen auf den Boten / den er verstehen kann. / Er [Es] schikkt der Quell ein Rauschen / der Wald den kühlen Hauch. / Der Blinde fühlt das Wehen / und hört das Rauschen auch. / Er folget den behenden/ den milden Boten schnell / zu ruhen in dem Walde zu trinken aus dem Quell." Hinten: "Es drükkt auf manche Stirne / am Mittag bang u: schwül / Die trüben Blikke suchen / nach Quell und Waldes Nahe / O Wald u: kühle Quelle / nehmt euch des Blinden an / & schikkt ihm einen Boten/ den er verstehen kann." Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek; CFM K 307 : 1
description: Mit zusätzlichem Eintrag auf dem hinteren Vorsatzblatt und übergehend zu hinterem Vorsatz: "Walter v. der Vogelweid / War ein Dichter ohne Neid / Herr es naht dein selig End / Ritter mach dein Testament / Muss ich denn begraben sein / haut mir einen Sarg aus Stein / und mein Wappen grabet / in den Sarg zu Schmukk & Zier/ Höhlet kleiner Bekken 4 / in des Sarges Ekken mir / Füllt mit Körnern sie, wenns tagt / wie's den Vögeln wohlbehagt / Dass ich werde noch im Tod / was da hüpft im Morgenrot / Dass da streife Flug & Klang / immer meinem Sarg entlang / Dass da juble Lebenslust / Über einen todten Brust / Dass da Lied an Lied beginn' / während ich begrabin bin." Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek; CFM K 307 : 1
description: Mit handschriftlichen Notizen auf Seite 9 bis 15 Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek; CFM K 307: 1
description: Mit handschriftlicher Randnotiz auf Seite 247 bis 272 Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek; CFM K 30 : 2
Directed flow of charged particles at mid-rapidity relative to the spectator plane in Pb-Pb collisions at $\sqrt{s_\rm{NN}}$=2.76 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The directed flow of charged particles at mid-rapidity is measured in Pb-Pb collisions at $\sqrt{s_\rm{NN}}=2.76$ TeV relative to the collision symmetry plane defined by the spectator nucleons. A negative slope of the rapidity-odd directed flow component with approximately 3 times smaller magnitude than found at the highest RHIC energy is observed. This suggests a smaller longitudinal tilt of the initial system and disfavors the strong fireball rotation predicted for the LHC energies. The rapidity-even directed flow component is measured for the first time with spectators and found to be independent of pseudorapidity with a sign change at transverse momenta $p_{\rm T}$ between $1.2$ and $1.7$ GeV/$c$. Combined with the observation of a vanishing rapidity-even $p_{\rm T}$ shift along the spectator deflection this is strong evidence for dipole-like initial density fluctuations in the overlap zone of the nuclei. Similar trends in the rapidity-even directed flow and the estimate from two-particle correlations at mid-rapidity, which is larger by about a factor of 40, indicate a weak correlation between fluctuating participant and spectator symmetry planes. These observations open new possibilities for investigation of the initial conditions in heavy-ion collisions with spectator nucleons.
description: 17 pages, 4 captioned figures, authors from page 12, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/463
On maximally superintegrable systems
Creators: name: Tsiganov, A. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Locally any completely integrable system is maximally superintegrable system such as we have the necessary number of the action-angle variables. The main problem is the construction of the single-valued additional integrals of motion on the whole phase space by using these multi-valued action-angle variables. Some constructions of the additional integrals of motion for the Stäckel systems and for the integrable systems related with two different quadratic $r$-matrix algebras are discussed. Among these system there are the open Heisenberg magnet and the open Toda lattices associated with the different root systems.
description: 12 pages, LaTeX with AmsFonts
title: 03_0239
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/
Die  Deutschen Volksbücher : für Jung und Alt wieder erzählt
Creators: name: Schwab, Gustav
Publisher: name: Druck und Verlag von Philipp Reclam jun.
Year: 1880

description: Erstes Heft <>gehörnte Siegfried <> schöne Magelone Hirlanda
description: Zweites Heft <> vier Heymonskinder
description: Drittes Heft Genovesa <> Schloss in in der Höhle Xa Xa Robert der Teufel
description: Viertes Heft <> schöne Melusina
description: Fünftes Heft <> Schildbürger Herzog Ernst
description: Sechstes Heft Kaiser Octavianus Griseldis
description: Siebentes Heft Doctor Faustus <> arme Heinrich
description: Achtes Heft Fortunat und seine Söhne
description: von Gustav Schwab
description: Mit Exlibris von Conrad Ferdinand Meyer Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek
description: Aus dem Vorbesitz von Conrad Ferdinand Meyer Exemplar der Zentralbibliothek Zürich, C.F.-Meyer-Bibliothek
On the Semantics of Purpose Requirements in Privacy Policies (CMU-CS-11-102)
Creators: name: Tschantz, Michael Carl.
name: Datta, Anupam
name: Wing, Jeannette M.
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Privacy policies often place requirements on the purposes for which a governed entity may use personal information. For example, regulations, such as HIPAA, require that hospital employees use medical information for only certain purposes, such as treatment. Thus, using formal or automated methods for enforcing privacy policies requires a semantics of purpose requirements to determine whether an action is for a purpose or not. We provide such a semantics using a formalism based on planning. We model planning using a modified version of Markov Decision Processes, which exclude redundant actions for a formal definition of redundant. We use the model to formalize when a sequence of actions is only for or not for a purpose. This semantics enables us to provide an algorithm for automating auditing, and to describe formally and compare rigorously previous enforcement methods.
title: Paratexte_La nouvelle magie blanche dévoilée
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021

description: Paratexte
description: ID_PARA_01092
Mean-potential law in evolutionary games
Creators: name: Nałęcz-Jawecki, Paweł
name: Miękisz, Jacek
Publisher: name: arXiv
Year: 2018
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The Letter presents a novel way to connect random walks, stochastic differential equations, and evolutionary game theory. We introduce a new concept of potential function for discrete-space stochastic systems. It is based on a correspondence between one-dimensional stochastic differential equations and random walks, which may be exact not only in the continuous limit but also in finite-state spaces. Our method is useful for computation of fixation probabilities in discrete stochastic dynamical systems with two absorbing states. We apply it to evolutionary games, formulating two simple and intuitive criteria for evolutionary stability of pure Nash equilibria in finite populations. In particular, we show that the $1/3$ law of evolutionary games, introduced by Nowak et al [Nature, 2004], follows from a more general mean-potential law.