cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic quantum correlation in the 1D transverse-field XXZ model
Creators: name: Mahdavifar, Salimeh
name: Mahdavifar, Saeed
name: Jafari, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: One-dimensional spin-1/2 systems are well-known candidates to study the quantum correlations between particles. In the condensed matter physics, studies often are restricted to the 1st neighbor particles. In this work, we consider the 1D XXZ model in a transverse magnetic field (TF) which is not integrable except at specific points. Analytical expressions for quantum correlations (entanglement and quantum discord) between spin pairs at any distance are obtained for both zero and finite temperature, using an analytical approach proposed by Caux et al. [PRB 68, 134431 (2003)]. We compare the efficiency of the QD with respect to the entanglement in the detection of critical points (CPs) as the neighboring spin pairs go farther than the next nearest neighbors. In the absence of the TF and at zero temperature, we show that the QD for spin pairs farther than the 2nd neighbors is able to capture the critical points while the pairwise entanglement is absent. In contrast to the pairwise entanglement, two-site quantum discord is effectively long-range in the critical regimes where it decays algebraically with the distance between pairs. We also show that the thermal quantum discord between neighbor spins possesses strong distinctive behavior at the critical point that can be seen at finite temperature and, therefore, spotlights the critical point while the entanglement fails in this task.
description: 8 pages, 6 figures, Accepted to Phys. Rev. A
Effects of Conformational Isomerism on the Desorption Kinetics of N-Alkanes from Graphite
Creators: name: Paserba, Kris R
name: Gellman, Andrew J
Publisher: name: Carnegie Mellon University
Year: 2001
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: The dynamics of oligomer desorption from surfaces have been studied by measuring the desorption kinetics of a set of n-alkanes from the surface of single crystalline graphite. Desorption rates were measured using a set of 21 monodispersed n-alkanes (CNH2N12,5
Requirements on Simulation Systems and Models Posed by a Criticality Analysis for Automated Driving Systems
Creators: name: Neurohr, Christian
name: Westhofen, Lukas
name: Duong Quang, Tuan
name: Koopmann, Tjark
name: Gansch, Roman
name: Schoenawa, Stefan
Publisher: name: Zenodo
Year: 2024

description: A methodical criticality analysis for automated driving systems exhibits numerous valuable use cases for the application of computer simulations. Naturally, these simulation use cases pose requirements , specific to a criticality analysis, on the employed simulation system and the simulation models. In this work, we gather simulation use cases coming from the criticality analysis and delineate a process how requirements on simulation can be derived therefrom. This process is then instantiated for the open source simulation platform openPASS by elicitation of general as well as scenario-based requirements on openPASS necessary for conducting a criticality analysis.
Ultracold polarized Fermi gas at intermediate temperatures
Creators: name: Martikainen, Jani-Petri
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider non-zero temperature properties of the polarized two-component Fermi gas. We point out that stable polarized paired states which are more stable than their phase separated counterparts with unpolarized superfluid region can exist below the critical temperature. We also solve the system behavior in a trap using the local density approximation and find gradually increasing polarization in the center of the system as the temperature is increased. However, in the strongly interacting region the central polarization increases most rapidly close to the mean-field critical temperature, which is known to be substantially higher than the critical temperature for superfluidity. This indicates that most of the phase separation occurs in the fluctuation region prior to superfluidity and that the polarization in the actual superfluid is modest.
description: Final published version
title: Achat d'un billet de bus
title: Bying a bus ticket
titleType: AlternativeTitle
Creators: name: Vittrant, Alice
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2015
Subjects: subject: Burmese
subject: mya

description: Daw Pu raconte à sa soeur notre périple pour aller acheter un ticket de bus
Dynamic optimization in planning under process model uncertainty
Creators: name: Bhatia, Tarun
name: Biegler, Lorenz T.
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: Abstract: "Planning for multi-product batch plants involves decisions for facility design, product scheduling, inventory control etc. These are usually addressed for recipe based processes with fixed stage processing times. There is significant benefit in incorporating detailed dynamic process models while planning, and addressing the overall problem simultaneously (Bhatia and Biegler [1]). It thus becomes desirable to have sufficiently accurate process models, or develop methods that deal with process model uncertainty. This work addresses dynamic processing and planning decisions simultaneously for multi product batch plants, now with uncertainty in process parameters. Instances of uncertain parameters are used to construct planning scenarios that are addressed through a multiperiod planning formulation. Dynamic processing under uncertainty is addressed via a closed loop state feedback based correction strategy. Control parameters in the closed loop implementation of processing decisions are then determined in an open loop manner, and treated as invariant design variables in the multiperiod problem formulation."
Parlare consapevolmente: silent book e tratti del parlato puerile
Creators: name: Bavaud, Jeanne
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022
Subjects: tratto
parlato puerile
linguaggio
comunicazione
consapevolezza
silent book
albo illustrato.

description: Il linguaggio orale è un mezzo di comunicazione importante, poiché permette al soggetto di esprimersi e conseguentemente di integrarsi nel contesto sociale e culturale in cui vive. Attraverso questa ricerca, proposta a una sezione di allievi della Scuola dell’infanzia (1° ciclo – dai 3 ai 6 anni), ho posto i bambini nella condizione di riflettere sul proprio parlato, considerando in particolar modo alcuni dei tratti tipici del parlato puerile. Per coinvolgere e rendere gli allievi dei soggetti attivi del proprio apprendimento ho proposto loro degli interventi didattici utilizzando uno strumento potente e conosciuto dai bambini e alla Scuola dell’infanzia: i silent book, ovvero albi illustrati senza parole. I dati della ricerca sono stati raccolti tramite una griglia in cui è stato segnato l’utilizzo dei tratti tipici del parlato puerile degli allievi. Siccome i dati non hanno pretese di generalizzazione e richiedono dunque una loro interpretazione la ricerca è di tipo qualitativa. I risultati mostrano che vi è stata un’evoluzione nella consapevolezza linguistica di alcuni allievi e un’importante attivazione di riflessione sulla propria oralità. Questa prima familiarizzazione, se approfondita e allenata in maniera adeguata anche nei successivi anni di scolarità, permetterà agli allievi di prestare maggior attenzione al loro parlato, in maniera da avvicinarsi il più possibile a un uso consapevole e adeguato del linguaggio verbale. Relatore: Simone Fornara.
SNS Superconducting Cavity Modeling -Iterative Learning Control
Creators: name: Kwon, Sung-il
name: Wang, Yi-Ming
name: Regan, Amy
name: Rohlev, Tony
name: Prokop, Mark
name: Thomson, Dave
Publisher: name: arXiv
Year: 2000
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The SNS SRF system is operated with a pulsed beam. For the SRF system to track the repetitive reference trajectory, a feedback and a feedforward controllers has been proposed. The feedback controller is to guarantee the closed loop system stability and the feedforward controller is to improve the tracking performance for the repetitive reference trajectory and to suppress the repetitive disturbance. As the iteration number increases, the error decreases.
description: For Linac2000, Paper ID TUC13, 3 pages, 3 figures, The summary of the technical report, LANSCE-5-TN-00-014, Los Alamos Nation Lab., July, 2000
Itinerant ferromagnetism of the Pd-terminated polar surface of PdCoO$_2$
Creators: name: Mazzola, F.
name: Sunko, V.
name: Khim, S.
name: Rosner, H.
name: Kushwaha, P.
name: Clark, O. J.
name: Bawden, L.
name: Marković, I.
name: Kim, T. K.
name: Hoesch, M.
name: Mackenzie, A. P.
name: King, P. D. C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the electronic structure of the Pd-terminated surface of the non-magnetic delafossite oxide metal PdCoO$_2$. Combining angle-resolved photoemission spectroscopy and density-functional theory, we show how an electronic reconstruction driven by surface polarity mediates a Stoner-like magnetic instability towards itinerant surface ferromagnetism. Our results reveal how this leads to a rich multi-band surface electronic structure, and provide spectroscopic evidence for an intriguing sample-dependent coupling of the surface electrons to a bosonic mode which we attribute to electron-magnon interactions. Moreover, we find similar surface state dispersions in PdCrO$_2$, suggesting surface ferromagnetism persists in this sister compound despite its bulk antiferromagnetic order.
description: 6 pages, 5 figures
Large scale dynamos with ambipolar diffusion nonlinearity
Creators: name: Brandenburg, Axel
name: Subramanian, Kandaswamy
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is shown that ambipolar diffusion as a toy nonlinearity leads to very similar behaviour of large scale turbulent dynamos as full MHD. This is demonstrated using both direct simulations in a periodic box and a closure model for the magnetic correlation functions applicable to infinite space. Large scale fields develop via a nonlocal inverse cascade as described by the alpha-effect. However, because magnetic helicity can only change on a resistive timescale, the time it takes to organize the field into large scales increases with magnetic Reynolds number.
description: 4 pages, 5 figures
title: Kritische Regelungsgegenstände. Ein Konzept für eine relative Subkategorie
title: Critical objects of regulation. A concept for a relative subcategory
Creators: name: Erben, Adrian S.
Publisher: name: Universität Würzburg
Year: 2021
Subjects: subject: 930 Geschichte des Altertums bis ca. 499, Archäologie

description: LoSAM Working Papers; 5
Stacking of doxorubicin on folic acid-targeted multiwalled carbon nanotubes for in vivo chemotherapy of tumors
Creators: name: Yan, Yan
name: Wang, Ruizhi
name: Hu, Yong
name: Sun, Rongyue
name: Song, Tian
name: Shi, Xiangyang
name: Yin, Shimeng
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Biochemistry
Space Science
Medicine
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer

description: In this work, we developed a novel active targeting and pH-responsive system for delivering the drug doxorubicin (DOX) to tumor sites using folic acid (FA)-modified multiwalled carbon nanotubes (MWCNTs). Acid-treated MWCNTs with carboxyl groups were first covalently conjugated with polyethyleneimine (PEI). Subsequent sequential modification with FA (via a polyethylene glycol spacer), fluorescein isothiocyanate (FI), and acetic anhydride/triethylamine resulted in multifunctional FA-bound MWCNT (MWCNT-PEI.Ac-FI-PEG-FA) nanomaterials that possessed exceptional colloidal stability and good biocompatibility in a given concentration range. The FA-bound MWCNTs were characterized using various techniques and exhibited a high drug loading and an encapsulation efficiency as high as 70.4%. DOX/MWCNT-PEI.Ac-FI-PEG-FA nanocomplexes (DOX/MWCNT NCs) exhibited pH-responsive release in acidic environments. Importantly, the DOX/MWCNT NCs targeted tumor cells overexpressing FA receptors (FARs) and effectively inhibited their growth. In vivo anticancer experiments demonstrated that DOX/MWCNT NCs not only enhanced the suppression of tumor growth but also decreased the side effects of free DOX. The developed FA-modified MWCNTs with an unconventionally high DOX loading boosted in vivo anti-tumor efficacy, and the lower systemic toxicity may be utilized for tumor therapy upon clinical translation.
Baryonic Condensates on the Conifold
Creators: name: Benna, Marcus K.
name: Dymarsky, Anatoly
name: Klebanov, Igor R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide new evidence for the gauge/string duality between the baryonic branch of the cascading SU(k(M+1)) \times SU(kM) gauge theory and a family of type IIB flux backgrounds based on warped products of the deformed conifold and R^{3,1}. We show that a Euclidean D5-brane wrapping all six deformed conifold directions can be used to measure the baryon expectation values, and present arguments based on kappa-symmetry and the equations of motion that identify the gauge bundles required to ensure worldvolume supersymmetry of this object. Furthermore, we investigate its coupling to the pseudoscalar and scalar modes associated with the phase and magnitude, respectively, of the baryon expectation value. We find that these massless modes perturb the Dirac-Born-Infeld and Chern-Simons terms of the D5-brane action in a way consistent with our identification of the baryonic condensates. We match the scaling dimension of the baryon operators computed from the D5-brane action with that found in the cascading gauge theory. We also derive and numerically evaluate an expression that describes the variation of the baryon expectation values along the supergravity dual of the baryonic branch.
description: 34 pages, 1 figure; v2 typos corrected, references added; v3 added comment on \kappa-symmetry of Euclidean D5-brane, published in JHEP
Some spin glass ideas applied to the clique problem
Creators: name: Iovanella, Antonio
name: Scoppola, Benedetto
name: Scoppola, Elisabetta
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In this paper we introduce a new algorithm to study some NP-complete problems. This algorithm is a Markov Chain Monte Carlo (MCMC) inspired by the cavity method developed in the study of spin glass. We will focus on the maximum clique problem and we will compare this new algorithm with several standard algorithms on some DIMACS benchmark graphs and on random graphs. The performances of the new algorithm are quite surprising. Our effort in this paper is to be clear as well to those readers who are not in the field.
description: 21 pages, latex file
Descriviamo i paesaggi sonori: un percorso di educazione al suono per un ascolto più ricco e consapevole
Creators: name: Scherrer, Morena
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022
Subjects: paesaggi sonori
educazione al suono
esercizi di ascolto
linguaggio descrittivo

description: Il percorso, svolto in una classe di scuola dell’infanzia, è costituito da esercizi di educazione al suono. Il lavoro di ricerca si pone l’obiettivo di migliorare l’abilità di ascolto dei bambini, di sensibilizzarli ad una lettura dell’ambiente sfruttando il senso percettivo dell’udito, aiutarli a cogliere i suoni che li circondano e portarli ad arricchire il loro bagaglio lessicale descrivendo i paesaggi sonori del loro paese. I dati sono di tipo qualitativo, ovvero le parole e frasi espresse dai bambini durante i momenti di condivisione e descrizione dei suoni, raccolti tramite la registrazione e trascrizione delle discussioni svolte a inizio e fine percorso. Attraverso l’impiego di una rubrica valutativa, i dati qualitativi sono stati trasformati in scale numeriche e sono quindi state analizzate attraverso metodi di quantificazione. I dati raccolti mostravano un’individuazione dei suoni più variata e l’utilizzo di un lessico più ricco. Prendendo in considerazione i dati emersi, potrebbe sembrare lecito attribuire al percorso svolto un effetto di miglioramento delle abilità di ascolto e del linguaggio di descrizione del suono. Relatore: Matteo Luigi Piricò.
Evidence of incoherent carriers associated with resonant impurity levels and their influence on superconductivity in the anomalous superconductor Pb$_{1-x}$Tl$_x$Te
Creators: name: Giraldo-Gallo, P.
name: Walmsley, P.
name: Sangiorgio, B.
name: Riggs, S. C.
name: McDonald, R. D.
name: Buchauer, L.
name: Fauque, B.
name: Liu, Chang
name: Spaldin, N. A.
name: Kaminski, A.
name: Behnia, K.
name: Fisher, I. R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a combined experimental and theoretical study of the evolution of the Fermi surface of the anomalous superconductor Pb$_{1-x}$Tl$_x$Te as a function of thallium concentration, drawing on a combination of magnetotransport measurements (Shubnikov de Haas oscillations and Hall coefficient), Angle Resolved Photoemission Spectroscopy (ARPES), and density functional theory (DFT) calculations of the electronic structure. Our results indicate that for Tl concentrations beyond a critical value the Fermi energy coincides with resonant impurity states in Pb$_{1-x}$Tl$_x$Te, and we rule out the presence of an additional valence band maximum at the Fermi energy. Through comparison to non-superconducting Pb$_{1-x}$Na$_x$Te we argue that the presence of these states at the Fermi energy provides the pairing interaction and thus also the anomalously high temperature superconductivity in this material.
Dynamic operations in the planning and scheduling of multi-products batch plants
Creators: name: Bhatia, Tarun
name: Biegler, Lorenz T.
name: Carnegie Mellon University.Engineering Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 1995
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: Abstract: "Execution of tasks in dynamic batch units provides additional operating freedom via transient control profiles. When considered at the design and scheduling stage, this freedom can stretch the limits of profitability under strict market, facility and time constraints. The work in this paper incorporates dynamic processing conditions for products in a multi-product batch plant, as opposed to fixing the process by recipes, in the broader context of equipment design, production planning, scheduling and inventory considerations. The objective is a general function of fixed design costs, operating costs, production revenues etc. Decisions include stage processing times for products, transient stage operating policies, continuous design parameters, production capacity and production schedules. The infinite dimensional optimal control problem for each operation is solved using collocation over finite time elements ([6], [7]). Scheduling, with its combinatorial complexity, is addressed in the scope of flowshop plants for specific transfer policies using the Aggregated Scheduling model in [3] and [4]. Two examples are solved via sequential and simultaneous solution approaches. The smaller first example allows transient control at the reaction stage for problems with relevant objectives in planning and scheduling. The second example allows transient control at the reaction and high purity separation stage for a general objective function. Considerable savings achieved in most situations are reported, along with moderate computational requirements for solving the examples."
title: ADCO, Cartulaire de Cîteaux pour les possessions de Dijon et du Dijonnais (XVe siècle), Cart. 175 (11 H 479), 115 folios, f. 0125
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire de Cîteaux pour les possessions de Dijon et du Dijonnais (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 175 (11 H 479), 115 folios, f. 0125, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Dijon et du Dijonnais (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 175 (11 H 479), 115 folios, f. 0125, 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
การพัฒนาความเป็นพลเมืองดิจิทัลของนักเรียนในศตวรรษที่ 21
Creators: name: กาญจนา เดชสม
name: รุ่งชัชดาพร เวหะชาติ
Publisher: name: วารสารมหาวิทยาลัยพายัพ
Year: 2021
Subjects: การพัฒนา
ความเป็นพลเมืองดิจิทัล
นักเรียนในศตวรรษที่ 21

description: วารสารมหาวิทยาลัยพายัพ, 31, 1, 151
Energy Transfer Mechanisms and Equipartitioning in non-Equilibrium Space- Charge-Dominated Beams
Creators: name: Kishek, R. A.
name: O'Shea, P. G.
name: Reiser, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A process of energy transfer is demonstrated in non-equilibrium charged particle beams with anisotropy and space charge. Equipartitioning of energy between available degrees of freedom occurs in just a few betatron wavelengths, without halo formation. Collective space charge modes similar to those observed in recent experiments provide the underlying coupling mechanism. Since laboratory beams are commonly far from equilibrium, the traditional K-V stability analysis does not necessarily apply, implying that selection of an operating point based on theory does not necessarily avoid equipartitioning. Furthermore, the rate of equipartitioning is shown to depend on a single free parameter related space charge content of the final (equipartitioned) beam, and does not depend on how the kinetic energy is initially distributed between the two planes.
description: LINAC 2000 Conference Proceedings Paper ID: MOE19 3 pages, 3 figures
Dinkelbach’s Algorithm as an Efficient Method for Solving a Class of MINLP Models for Large-Scale Cyclic Scheduling Problems
Creators: name: Fengqi  You
name: Castro, Pedro
name: Grossmann, Ignacio E.
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: In this paper we consider the solution methods for mixed-integer linear fractional programming (MILFP) models, which arise in cyclic process scheduling problems. We first discuss convexity properties of MILFP problems, and then investigate the capability of solving MILFP problems with MINLP methods. Dinkelbach’s algorithm is introduced as an efficient method for solving large scale MILFP problems for which its optimality and convergence properties are established. Extensive computational examples are presented to compare Dinkelbach’s algorithm with various MINLP methods. To illustrate the applications of this algorithm, we consider industrial cyclic scheduling problems for a reaction-separation network and a tissue paper mill with byproduct recycling. These problems are formulated as MILFP models based on a continuous time Resource-Task Network (RTN). The results show that orders of magnitude reduction in CPU times can be achieved when using this algorithm compared to solving the problems with commercial MINLP solvers.
Markov Decision Processes with Continuous Side Information
Creators: name: Modi, Aditya
name: Jiang, Nan
name: Singh, Satinder
name: Tewari, Ambuj
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We consider a reinforcement learning (RL) setting in which the agent interacts with a sequence of episodic MDPs. At the start of each episode the agent has access to some side-information or context that determines the dynamics of the MDP for that episode. Our setting is motivated by applications in healthcare where baseline measurements of a patient at the start of a treatment episode form the context that may provide information about how the patient might respond to treatment decisions. We propose algorithms for learning in such Contextual Markov Decision Processes (CMDPs) under an assumption that the unobserved MDP parameters vary smoothly with the observed context. We also give lower and upper PAC bounds under the smoothness assumption. Because our lower bound has an exponential dependence on the dimension, we consider a tractable linear setting where the context is used to create linear combinations of a finite set of MDPs. For the linear setting, we give a PAC learning algorithm based on KWIK learning techniques.
A simple Lattice Model for hysteresis loops with exchange bias
Creators: name: Vives, Eduard
name: Illa, Xavier
name: Planes, Antoni
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A simple lattice model that allows hysteresis loops with exchange bias to be reproduced is presented. The model is based on the metastable Random Field Ising model, driven by an external field, with synchronous local relaxation dynamics. The key ingredient of the model is that a certain fraction $f$ of the exchange constants between neighbouring spins is enhanced to a very large value $J_E$. The model allows the dependence of several properties of the hysteresis loops to be analyzed as a function of different parameters and we have carried out an analysis of the first-order reversal curves.
description: 2 pages, 3 figures
Machine learning technique to find quantum many-body ground states of bosons on a lattice
Creators: name: Saito, Hiroki
name: Kato, Masaya
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a variational method to obtain many-body ground states of the Bose-Hubbard model using feedforward artificial neural networks. A fully-connected network with a single hidden layer works better than a fully-connected network with multiple hidden layers, and a multi-layer convolutional network is more efficient than a fully-connected network. AdaGrad and Adam are optimization methods that work well. Moreover, we show that many-body ground states with different numbers of atoms can be generated by a single network.
description: 8 pages, 10 figures
Is Our Universe Decaying at an Astronomical Rate?
Creators: name: Page, Don N.
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: FOS: Physical sciences

description: Unless our universe is decaying at an astronomical rate (i.e., on the present cosmological timescale of Gigayears, rather than on the quantum recurrence timescale of googolplexes), it would apparently produce an infinite number of observers per comoving volume by thermal or vacuum fluctuations (Boltzmann brains). If the number of ordinary observers per comoving volume is finite, this scenario seems to imply zero likelihood for us to be ordinary observers and minuscule likelihoods for our actual observations. Hence, our observations suggest that this scenario is incorrect and that perhaps our universe is decaying at an astronomical rate.
description: 4 pages, RevTeX4
On the One Loop Corrections to Inflation II: The Consistency Relation
Creators: name: Sloth, Martin S.
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: FOS: Physical sciences

description: In this paper we extend our previous treatment of the one-loop corrections to inflation. Previously we calculated the one-loop corrections to the background and the two-point correlation function of inflaton fluctuations in a specific model of chaotic inflation. We showed that the loop corrections depend on the total number of e-foldings and estimated that the effect could be as large as a few percent in a lambda-phi-four model of chaotic inflation. In the present paper we generalize the calculations to general inflationary potentials. We find that effect can be as large as 70% in the simplest model of chaotic inflation with a quadratic inflationary potential. We discuss the physical interpretation of the effect in terms of the tensor-to-scalar consistency relation. Finally, we discuss the relation to the work of Weinberg on quantum contributions to cosmological correlators.
description: 21 pages, 4 figures. v2: IR approximation corrected, references added. v3: typos corrected
Stacking of doxorubicin on folic acid-targeted multiwalled carbon nanotubes for in vivo chemotherapy of tumors
Creators: name: Yan, Yan
name: Wang, Ruizhi
name: Hu, Yong
name: Sun, Rongyue
name: Song, Tian
name: Shi, Xiangyang
name: Yin, Shimeng
Publisher: name: Taylor & Francis
Year: 2018
Subjects: Biochemistry
Space Science
Medicine
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer

description: In this work, we developed a novel active targeting and pH-responsive system for delivering the drug doxorubicin (DOX) to tumor sites using folic acid (FA)-modified multiwalled carbon nanotubes (MWCNTs). Acid-treated MWCNTs with carboxyl groups were first covalently conjugated with polyethyleneimine (PEI). Subsequent sequential modification with FA (via a polyethylene glycol spacer), fluorescein isothiocyanate (FI), and acetic anhydride/triethylamine resulted in multifunctional FA-bound MWCNT (MWCNT-PEI.Ac-FI-PEG-FA) nanomaterials that possessed exceptional colloidal stability and good biocompatibility in a given concentration range. The FA-bound MWCNTs were characterized using various techniques and exhibited a high drug loading and an encapsulation efficiency as high as 70.4%. DOX/MWCNT-PEI.Ac-FI-PEG-FA nanocomplexes (DOX/MWCNT NCs) exhibited pH-responsive release in acidic environments. Importantly, the DOX/MWCNT NCs targeted tumor cells overexpressing FA receptors (FARs) and effectively inhibited their growth. In vivo anticancer experiments demonstrated that DOX/MWCNT NCs not only enhanced the suppression of tumor growth but also decreased the side effects of free DOX. The developed FA-modified MWCNTs with an unconventionally high DOX loading boosted in vivo anti-tumor efficacy, and the lower systemic toxicity may be utilized for tumor therapy upon clinical translation.
title: 01_2523
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/
The low noise phase of a 2d active nematic
Creators: name: Shankar, Suraj
name: Ramaswamy, Sriram
name: Marchetti, M. Cristina
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a collection of self-driven apolar particles on a substrate that organize into an active nematic phase at sufficiently high density or low noise. Using the dynamical renormalization group, we systematically study the 2d fluctuating ordered phase in a coarse-grained hydrodynamic description involving both the nematic director and the conserved density field. In the presence of noise, we show that the system always displays only quasi-long ranged orientational order beyond a crossover scale. A careful analysis of the nonlinearities permitted by symmetry reveals that activity is dangerously irrelevant over the linearized description, allowing giant number fluctuations to persist though now with strong finite-size effects and a non-universal scaling exponent. Nonlinear effects from the active currents lead to power law correlations in the density field thereby preventing macroscopic phase separation in the thermodynamic limit.
description: 17 pages, 5 figures
Analysis and Synthesis of the SNS Superconducting RF Control System
Creators: name: Wang, Y. M.
name: Kwon, S. I.
name: Regan, A. H.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The RF system for the SNS superconducting linac consists of a superconducting cavity, a klystron, and a low-level RF (LLRF) control system. For a proton linac like SNS, the field in each individual cavity needs to be controlled to meet the overall system requirements. The purpose of the LLRF control system is to maintain the RF cavity field to a desired magnitude and phase by controlling the klystron driver signal. The Lorentz force detuning causes the shift of the resonant frequency during the normal operation in the order of a few hundreds hertz. In order to compensate the Lorentz force detuning effects, the cavity is pre-tuned into the middle of the expected frequency shift caused by the Lorentz force detuning. Meanwhile, to reduce the overshoot in the transient response, a feed-forward algorithm, a linear parameter varying gain scheduling (LPV-GS) controller, is proposed to get away a repetitive noised caused by the pulsed operation as well as the Lorentz force detuning effects.
description: LINAC2000, TUC16
A new method of measuring center-of-mass velocities of radially pulsating stars from high-resolution spectroscopy
Creators: name: Britavskiy, N. E.
name: Pancino, E.
name: Tsymbal, V.
name: Romano, D.
name: Fossati, L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a radial velocity analysis of 20 solar neighborhood RR Lyrae and 3 Population II Cepheids variables. We obtained high-resolution, moderate-to-high signal-to-noise ratio spectra for most stars and obtained spectra were covering different pulsation phases for each star. To estimate the gamma (center-of-mass) velocities of the program stars, we use two independent methods. The first, `classic' method is based on RR Lyrae radial velocity curve templates. The second method is based on the analysis of absorption line profile asymmetry to determine both the pulsational and the gamma velocities. This second method is based on the Least Squares Deconvolution (LSD) technique applied to analyze the line asymmetry that occurs in the spectra. We obtain measurements of the pulsation component of the radial velocity with an accuracy of $\pm$ 3.5 km s$^{-1}$. The gamma velocity was determined with an accuracy $\pm$ 10 km s$^{-1}$, even for those stars having a small number of spectra. The main advantage of this method is the possibility to get the estimation of gamma velocity even from one spectroscopic observation with uncertain pulsation phase. A detailed investigation of the LSD profile asymmetry shows that the projection factor $p$ varies as a function of the pulsation phase -- this is a key parameter which converts observed spectral line radial velocity variations into photospheric pulsation velocities. As a byproduct of our study, we present 41 densely-spaced synthetic grids of LSD profile bisectors that are based on atmospheric models of RR Lyr covering all pulsation phases.
description: 17 pages, 16 figures, accepted for publication in MNRAS; doi:10.1093/mnras/stx2944
title: Bac et Dangem
title: Bac and Dangem
titleType: AlternativeTitle
Creators: name: Ozanne-Rivierre, Françoise
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2011
Subjects: subject: Nemi
subject: nem

description: Ce texte de M. Rémi Pagu Faale (Kavatch, 1973) est une observation sur les moeurs de deux lochons d'eau douce : bac (Eleotris melanosoma) petit lochon des fonds et dangem (Awaous guamensis) qui reste plutôt collé sous les cailloux.
description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Probing large-distance higher-dimensional gravity with Cosmic Microwave Background measurements
Creators: name: Binetruy, Pierre
name: Silk, Joseph
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been recently argued that higher dimensional gravity theories may manifest themselves not only at short microscopic distances but also at large cosmological scales. We study the constraints that cosmic microwave background measurements set on such large distance modifications of the gravitational potential.
Developing targets for the performance index of a chemical reactor network
Creators: name: Achenie, Luke
name: Biegler, Lorenz T.
name: Carnegie Mellon University.Engineering Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: The target approach to reactor synthesis tries to determine an upper bound for the performance of a chemical reactor network as measured by its objective function (such as yield or reactor volume). This leads to an optimal control formulation in which the residence time distribution and the micromixing function are the control variables. The optimal control problem is solved using a gradient based algorithm that employs successive quadratic programing and adjoint variables. Examples are given to illustrate the approach taken.
Controllable pi junction in a Josephson quantum-dot device with molecular spin
Creators: name: Benjamin, Colin
name: Jonckheere, Thibaut
name: Zazunov, Alex
name: Martin, Thierry
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a model for a single molecule with a large frozen spin sandwiched in between two BCS superconductors at equilibrium, and show that this system has a $π$ junction behavior at low temperature. The $π$ shift can be reversed by varying the other parameters of the system, e.g., temperature or the position of the quantum dot level, implying a controllable $π$ junction with novel application as a Josephson current switch. We show that the mechanism leading to the $π$ shift can be explained simply in terms of the contributions of the Andreev bound states and of the continuum of states above the superconducting gap. The free energy for certain configuration of parameters shows a bistable nature, which is a necessary pre-condition for achievement of a qubit.
Testing mechanisms underlying responses of plant functional traits to flooding duration gradient in a lakeshore meadow
Creators: name: Lan, Zhichun
name: Huang, Hao
name: Chen, Yasong
name: Liu, Jiasheng
name: Chen, Jianguo
name: Li, Lin
name: Li, Lei
name: Jin, Binsong
name: Chen, Jiakuan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Flooding duration is a major factor determining wetland plant growth and community composition. While there have been extensive studies on how direct effects of flooding duration on plant functional traits, very few have tested the indirect effects on these traits, including those arising from competition. We hypothesized that there would be a shift in importance of competition ability and flooding tolerance to functional traits along the flooding duration gradient. We investigated plant functional traits along a flooding duration gradient for two-dominant wetland plant species (Carex cinerascens and Phalaris arundinacea) in a lakeshore meadow of Poyang Lake, China. We found that these two species tended to have different strategies to adapt to flooding stress. P. arundinacea tended to adopt escape strategy with high growth rate (e.g. greater height, specific leaf area, and leaf N and P content) at longer flooding duration, while C. cinerascens tended to adopt more quiescence strategy, with only 5 of 13 of its traits showing a significant response. With shorter flooding duration, both species tended to have lower leaf N and P content, indicating greater nutrient limitation. Meanwhile, relative abundance of C. cinerascens with relatively higher belowground nutrient competition ability (i.e. greater root/shoot biomass ratio) decreased with flooding duration. These results suggest that belowground competition intensifies at shorter flooding duration, because of increased nutrient limitation with increased productivity. Therefore, our study indicates that both flooding stress and nutrient competition could affect plant functional traits along a flooding duration gradient.
Faraday Cup Measurements of Ions Backstreaming into a Electron Beam Impinging on a Plasma Plume*
Creators: name: Guethlein, G.
name: Houck, T.
name: McCarrick, J.
name: Sampayan, S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The next generation of radiographic machines based on induction accelerators is expected to generate multiple, small diameter x-ray spots of high intensity. Experiments to study the interaction of the electron beam with plasmas generated at the x-ray converter and at beamline septa are being performed at the Lawrence Livermore National Laboratory (LLNL) using the 6-MeV, 2-kA Experimental Test Accelerator (ETA) electron beam. The physics issues of concern can be separated into two categories. The interaction of subsequent beam pulses with the expanding plasma plume generated by earlier pulses striking the x-ray converter or a septum, and the more subtle effect involving the extraction of light ions from a plasma by the head of the beam pulse. These light ions may be due to contaminants on the surface of the beam pipe or converter, or, for subsequent pulses, in the material of the converter. The space charge depression of the beam could accelerate the light ions to velocities of several mm/ns. As the ions moved through the body of the incoming pulse, the beam would be pinched resulting in a moving focus prior to the converter and a time varying x-ray spot. Studies of the beam-generated plasma at the x-ray converter have been previously reported. In this paper we describe Faraday cup measurements performed to detect and quantify the flow of backstreaming ions as the ETA beam pulse impinges on preformed plasma. * This work was performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.
description: TUB14 LINAC 2000