cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bulk Aluminum at High Pressure: A First-Principles Study
Creators: name: Tambe, Michael J.
name: Bonini, Nicola
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The behavior of metals at high pressure is of great importance to the fields of shock physics, geophysics, astrophysics, and nuclear materials. In order to further understand the properties of metals at high pressures we studied the equation of state of aluminum using first-principles techniques up to 2500 GPa, pressures within reach of the planned L.L.N.L. National Ignition Facility. Our simulations use density-functional theory and density-functional perturbation theory in the generalized gradient approximation at 0K. We found core overlaps to become relevant beyond pressures of 1200 GPa. The equations of state for three phases (fcc, bcc, and hcp) were calculated predicting the fcc-hcp, fcc-bcc, and hcp-bcc transitions to occur at 215 GPa, 307 GPa, and 435 GPa respectively. From the phonon dispersions at increasing pressure, we predict a softening of the lowest transverse acoustic vibrational mode along the [110] direction, which corresponds to a Born instability of the fcc phase at 725 GPa.
description: 4 pages, 5 figures, accepted to Phys. Rev. B as a Brief Report. This version has update many figures. Moreover we provided updated and more accurate numbers based on further in-depth analyses of potential computational errors
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0074r
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
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 général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0074r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0074r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Integrals of motion in 3-d Bohmian Trajectories
Creators: name: Tzemos, Athanasios C.
name: Contopoulos, George
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Chaos in Bohmian Quantum Mechanics is an open field of research. In general, most of the 3-d Bohmian trajectories are free to wander around the 3-d space. However there are cases where the evolution of the trajectories is dictated by exact or approximate integrals of motion. A first case corresponds to partial integrability, where the trajectories (ordered and chaotic) evolve on certain integral surfaces. A second case corresponds to ordered trajectories. In this paper we extend our previous work in 3-d Bohmian Chaos by using both forms of integrability and discuss their physical implications.
description: 28 pages, 14 figures
Covariant Approach of the Dynamics of Particles in External Gauge Fields, Killing Tensors and Quantum Gravitational Anomalies
Creators: name: Visinescu, Mihai
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give an overview of the first integrals of motion of particles in the presence of external gauge fields in a covariant Hamiltonian approach. The special role of Stäckel-Killing and Killing-Yano tensors is pointed out. Some nontrivial examples involving Runge-Lenz type conserved quantities are explicitly worked out. A condition of the electromagnetic field to maintain the hidden symmetry of the system is stated. A concrete realization of this condition is given by the Killing-Maxwell system and exemplified with the Kerr metric. Quantum symmetry operators for the Klein-Gordon and Dirac equations are constructed from Killing tensors. The transfer of the classical conserved quantities to the quantum mechanical level is analyzed in connection with quantum anomalies.
description: based on a talk at Symmetries and Integrability of Difference Equations (SIDE-9), Varna, Bulgaria, June 2010
Constraining Spiral Structure Parameters through Galactic Pencil-beam and Large-scale Radial Velocity Surveys
Creators: name: Minchev, I.
name: Quillen, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the effect of spiral structure on the Galactic disk as viewed by pencil beams centered on the Sun, relevant to upcoming surveys such as ARGOS, SEGUE, and GAIA. We create synthetic Galactic maps which we call Pencil Beam Maps (PBMs) of the following observables: line-of-sight velocities, the corresponding velocity dispersion, and the stellar number density that are functions of distance from the observer. We show that such maps can be used to infer spiral structure parameters, such as pattern speed, solar phase angle, and number of arms. The mean line-of-sight velocity and velocity dispersion are affected by up to ~35 km/s which is well within the detectable limit for forthcoming radial velocity surveys. One can measure the pattern speed by searching for imprints of resonances. In the case of a two-armed spiral structure it can be inferred from the radius of a high velocity dispersion ring situated at the 2:1 ILR. This information, however, must be combined with information related to the velocities and stellar number density in order to distinguish from a four-armed structure. If the pattern speed is such that the 2:1 ILR is hidden inside the Galactic bulge the 2:1 OLR will be present in the outer Galaxy and thus can equivalently be used to estimate the pattern speed. Once the pattern speed is known the solar angle can be estimated from the line-of-sight velocities and the number density PBMs. Forthcoming radial velocity surveys are likely to provide powerful constraints of the structure of the Milky Way disk.
description: 9 pages, 5 figures, submitted to MNRAS
Additional file 2 of Promoter G-quadruplex folding precedes transcription and is controlled by chromatin
Creators: name: Shen, Jiazhen
name: Varshney, Dhaval
name: Simeone, Angela
name: Zhang, Xiaoyun
name: Adhikari, Santosh
name: Tannahill, David
name: Balasubramanian, Shankar
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Uncropped Western blots.
Anomalous quantum metal in a 2D crystalline superconductor with intrinsic electronic non-uniformity
Creators: name: Li, Linjun
name: Chen, Chuan
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Zheng, Yi
name: Xu, Zhuan
name: Pereira, Vitor M.
name: Loh, Kian Ping
name: Neto, Antonio H. Castro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The details of the superconducting to quantum metal transition (SQMT) at T=0 are an open problem that invokes much interest in the nature of this exotic and unexpected ground state1-3. However, the SQMT was not yet investigated in a crystalline 2D superconductor with coexisting and fluctuating quantum orders. Here, we report the observation of a SQMT in 2D ion-gel gated 1T-TiSe24, driven by magnetic field. A field-induced crossover between Bose quantum metal and vortex quantum creeping with increasing field is observed. We discuss the interplay between superconducting and CDW fluctuations (discommensurations) and their relation to the anomalous quantum metal (AQM) phase. From our findings, gate-tunable 1T-TiSe2 emerges as a privileged platform to scrutinize, in a controlled way, the details of the SQMT, the role of coexisting fluctuating orders and, ultimately, obtain a deeper understanding of the fate of superconductivity in strictly two-dimensional crystals near zero temperature.
Capillary filling in closed-end nanotubes
Creators: name: Zhao, Chen
name: Zhou, Jiajia
name: Doi, Masao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Capillary filling in small length scale is an important process in nanotechnology and microfabrication. When one end of the tube or channel is sealed, it is important to consider the escape of the trapped gas. We develop a dynamic model on capillary filling in closed-end tubes, based on the diffusion-convection equation and Henry's law of gas dissolution. We systematically investigate the filling dynamics for various sets of parameters, and compare the results with a previous model which assumes a linear density profile of dissolved gas and neglect the convective term.
description: 19 pages, 8 figures
Enabling Dynamic Security Management of via Device-Embedded Security (CMU-CS-00-174)
Creators: name: Ganger, Gregory R.
name: Nagle, David F.
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: This report contains the technical content of a recent funding proposal. In it, we propose a new approach to network security in which each individual device erects its own security perimeter and defends its own critical resources. Together with conventional border defenses (e.g., firewalls and OS kernels), such {\it self-securing devices} could provide a flexible infrastructure for dynamic prevention, detection, diagnosis, isolation, and repair of successful breaches in borders and device security perimeters. Managing network security is difficult in current systems, because a small number of border protections are used to protect a large number of resources. We plan to explore the fundamental principles and practical costs/benefits of embedding security functionality into infrastructural devices, such as network interface cards (NICs), network-attached storage (NAS) devices, video surveillance equipment, and network switches and routers. The report offers several examples of how different devices might be extended with embedded security functionality and outlines some challenge of designing and managing self-securing devices.
Cardiomyocyte orientation modulated by the Numb family proteins–N-cadherin axis is essential for ventricular wall morphogenesis.pdf
Creators: name: Miao, Lianjie
name: Li,, Jingjing
name: Li, Jian
name: Shieh, David
name: Mazurkiewicz, Joseph E.
name: Barroso, Margarida
name: Schwarz, John J.
name: Xin, Hong-Bo
name: Singer, Harold A.
name: Vincent, Peter A.
name: Zhong, Weimin
name: Radice, Glenn L.
name: Wan, Leo Q.
name: Fan, Zhen-Chuan
name: Huang, Guoying
name: Wu, Mingfu
Publisher: name: Health Research Alliance
Year: 2024
Subjects: classificationCode: 310102
subject: Cell development, proliferation and death
classificationCode: 310105
subject: Cellular interactions (incl. adhesion, matrix, cell wall)
classificationCode: 310108
subject: Protein trafficking
classificationCode: 310110
subject: Receptors and membrane biology
classificationCode: 310111
subject: Signal transduction

description: The formation of ridge-like trabeculae from the myocardium is central to heart formation, as it allows for the increase in muscle mass before the formation of coronary circulation. We found that cardiomyocytes display spatiotemporal orientation during trabecular formation. Cardiomyocytes in the Numb and Numblike double knockout display abnormal cellular orientation. The knockout hearts display reduced membrane localized N-cadherin due to attenuated N-cadherin recycling to the membrane. When chick N-cadherin is overexpressed in the knockouts via a mosaic model, the defects of cellular orientation and trabeculation were at least partially rescued, suggesting that Numb and Numblike regulate cellular orientation and trabeculation via N-cadherin. Cellular orientation might modulate the directionality of cellular migration, mitotic spindle orientation, and cellular organization during heart morphogenesis.
title: OBSERVATIONS OF SOME OXYGEN-CONTAINING AND SULFUR-CONTAINING ORGANIC-MOLECULES IN COLD DARK CLOUDS
Creators: name: Irvine, William M.
name: FRIBERG, P
name: KAIFU, N
name: KAWAGUCHI, K
name: KITAMURA, Y
name: MATTHEWS, HE
name: MINH, Y
name: SAITO, S
name: UKITA, N
name: YAMAMOTO, S
Publisher: name: University of Massachusetts Amherst
Year: 1989
Subjects: subject: Astrophysics and Astronomy

description: The published version is located at http://adsabs.harvard.edu/full/1989ApJ...342..871I
description: Observations of nine oxygen- and sulfur-containing organic molecules have been made toward the cold dark clouds TMC-1 and L134N. The presence of paraketene (H2C2O) in TMC-1 is confirmed for orthoketene, and has been observed for the first time and a total ketene column density of about 10 to the 13th/sq cm is found. Thioformaldehyde (H2CS) is easily detectable in both TMC-1 and L134N, with a column density about five times larger in the former source. The fractional abundance of ketene is comparable to the predictions of ion-molecule chemistry, while that of thioformaldehyde in TMC-1 is one to two orders of magnitude greater than that expected from such models at steady state. Interstellar sulfur chemistry thus continues to be poorly understood. Upper limits are set for the column densities of formic acid (HCOOH), vinyl alcohol (CH2CHOH), methyl formate (HCO2CH3), formamide (NH2CHO), methyl mercaptan (CH3SH), isothiocyanic acid (HNCS), and thioketene (H2C2S) in both sources.
Mixed soliton solutions of the defocusing nonlocal nonlinear Schrodinger equation
Creators: name: Xu, Tao
name: Lan, Sha
name: Li, Min
name: Li, Ling-Ling
name: Zhang, Guo-Wei
Publisher: name: arXiv
Year: 2018
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: By using the Darboux transformation, we obtain two new types of exponential-and-rational mixed soliton solutions for the defocusing nonlocal nonlinear Schrodinger equation. We reveal that the first type of solution can display a large variety of interactions among two exponential solitons and two rational solitons, in which the standard elastic interaction properties are preserved and each soliton could be either the dark or antidark type. By developing the asymptotic analysis technique, we also find that the second type of solution can exhibit the elastic interactions among four mixed asymptotic solitons. But in sharp contrast to the common solitons, the asymptotic mixed solitons have the t-dependent velocities and their phase shifts before and after interaction also grow with |t| in the logarithmical manner. In addition, we discuss the degenerate cases for such two types of mixed soliton solutions when the four-soliton interaction reduces to a three-soliton or two-soliton interaction.
description: 28 pages, 7 figures
Runaway Domain Wall and Space-time Varying alpha
Creators: name: Chiba, Takeshi
name: Yamaguchi, Masahide
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently spatial as well as temporal variations of the fine structure constant alpha have been reported. We show that a "runaway domain wall", which arises for the scalar field potential without minima, can account for such variations simultaneously. The time variation is induced by a runaway potential and the spatial variation is induced by the formation of a domain wall. The model is consistent with the current cosmological data and can be tested by the future experiments to test the equivalence principle.
description: 10 pages, 2 figures, published version
Additional file 4 of Overexpression of AHL9 accelerates leaf senescence in Arabidopsis thaliana
Creators: name: Zhou, Yusen
name: Zhang, Xiaomin
name: Chen, Jing
name: Guo, Xiaopeng
name: Wang, Hongyan
name: Zhen, Weibo
name: Zhang, Junli
name: Hu, Zhubing
name: Zhang, Xuebing
name: Botella, José Ramón
name: Ito, Toshiro
name: Guo, Siyi
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 4 Table S3 Primers used in this study.
Embedded Security for Network-Attached Storage (CMU-CS-99-154)
Creators: name: Gobioff, Howard
name: Nagle, David
name: Gibson, Garth
Publisher: name: Carnegie Mellon University
Year: 1999
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: As storage interconnects evolve from single-host small-scale systems, such as traditional SCSI, to the multi-host Internet-based systems of Network-attached Secure Disks (NASD), protecting the integrity of data transfers between client and storage becomes essential. However, it is also computationally expensive and can impose significant performance penalties on storage systems. This paper explores several techniques that can protect the communications integrity of storage requests and data transfers, imposing very little performance penalty and significantly reducing the amount of required cryptography. Central to this work is an alternative cryptographic approach, called "Hash and MAC", that reduces the cost of protecting the integrity of read traffic in storage devices that are unable to generate a message authentication code at full data transfers rates. Hash and MAC does this by precomputing security information, using and reusing the precomputed information on subsequent read requests. We also present a refined Hash and MAC approach that uses incremental hash functions to improve the performance of small read and write operations as well as non-block-aligned operations.
Blessing of dimensionality: mathematical foundations of the statistical physics of data
Creators: name: Gorban, A. N.
name: Tyukin, I. Y.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The concentration of measure phenomena were discovered as the mathematical background of statistical mechanics at the end of the XIX - beginning of the XX century and were then explored in mathematics of the XX-XXI centuries. At the beginning of the XXI century, it became clear that the proper utilisation of these phenomena in machine learning might transform the curse of dimensionality into the blessing of dimensionality. This paper summarises recently discovered phenomena of measure concentration which drastically simplify some machine learning problems in high dimension, and allow us to correct legacy artificial intelligence systems. The classical concentration of measure theorems state that i.i.d. random points are concentrated in a thin layer near a surface (a sphere or equators of a sphere, an average or median level set of energy or another Lipschitz function, etc.). The new stochastic separation theorems describe the thin structure of these thin layers: the random points are not only concentrated in a thin layer but are all linearly separable from the rest of the set, even for exponentially large random sets. The linear functionals for separation of points can be selected in the form of the linear Fisher's discriminant. All artificial intelligence systems make errors. Non-destructive correction requires separation of the situations (samples) with errors from the samples corresponding to correct behaviour by a simple and robust classifier. The stochastic separation theorems provide us by such classifiers and a non-iterative (one-shot) procedure for learning.
description: Accepted for publication in Philosophical Transactions of the Royal Society A, 2018. Comprises of 17 pages and 4 figures
Eliminating Cross-server Operations in Scalable File Systems (CMU-PDL-06-105)
Creators: name: Hendricks, James
name: Shafeeq  Sinnamohideen
name: Sambasivan, Raja R.
name: Ganger, Gregory R.
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Distributed file systems that scale by partitioning files and directories among a collection of servers inevitably encounter crossserver operations. A common example is a RENAME that moves a file from a directory managed by one server to a directory managed by another. Systems that provide the same semantics for cross-server operations as for those that do not span servers traditionally implement dedicated protocols for these rare operations. This paper suggests an alternate approach that exploits the existence of dynamic redistribution functionality (e.g., for load balancing, incorporation of new servers, and so on). When a client request would involve files on multiple servers, the system can redistribute those files onto one server and have it service the request. Although such redistribution is more expensive than a dedicated cross-server protocol, the rareness of such operations makes the overall performance impact minimal. Analysis of NFS traces indicates that cross-server operations make up fewer than 0.001% of client requests, and experiments with a prototype implementation show that the performance impact is negligible when such operations make up as much as 0.01% of operations. Thus, when dynamic redistribution functionality exists in the system, cross-server operations can be handled with little additional implementation complexity.
The Architecture of MEG Simulation and Analysis Software
Creators: name: Cattaneo, Paolo W.
name: Cei, Fabrizio
name: Sawada, Ryu
name: Schneebeli, Matthias
name: Yamada, Shuei
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: MEG (Mu to Electron Gamma) is an experiment dedicated to search for the $μ^+ \rightarrow e^+γ$ decay that is strongly suppressed in the Standard Model but predicted in several Super Symmetric extensions of it at an accessible rate. MEG is a small-size experiment ($\approx 50-60$ physicists at any time) with a life span of about 10 years. The limited human resource available, in particular in the core offline group, emphasized the importance of reusing software and exploiting existing expertise. Great care has been devoted to provide a simple system that hides implementation details to the average programmer. That allowed many members of the collaboration to contribute to the development of the software of the experiment with limited programming skill. The offline software is based on two frameworks: {\bf REM} in FORTRAN 77 used for the event generation and detector simulation package {\bf GEM}, based on GEANT 3, and {\bf ROME} in C++ used in the readout simulation {\bf Bartender} and in the reconstruction and analysis program {\bf Analyzer}. Event display in the simulation is based on GEANT 3 graphic libraries and in the reconstruction on ROOT graphic libraries. Data are stored in different formats in various stage of the processing. The frameworks include utilities for input/output, database handling and format conversion transparent to the user.
description: Presented at the IEEE NSS Knoxville, 2010 Revised according to referee's remarks Accepted by European Physical Journal Plus
Enforcing constraints for interpolation and extrapolation in Generative Adversarial Networks
Creators: name: Stinis, Panos
name: Hagge, Tobias
name: Tartakovsky, Alexandre M.
name: Yeung, Enoch
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: 68T05, 65L05, 37M10, 62M45, 68Q32

description: We suggest ways to enforce given constraints in the output of a Generative Adversarial Network (GAN) generator both for interpolation and extrapolation (prediction). For the case of dynamical systems, given a time series, we wish to train GAN generators that can be used to predict trajectories starting from a given initial condition. In this setting, the constraints can be in algebraic and/or differential form. Even though we are predominantly interested in the case of extrapolation, we will see that the tasks of interpolation and extrapolation are related. However, they need to be treated differently. For the case of interpolation, the incorporation of constraints is built into the training of the GAN. The incorporation of the constraints respects the primary game-theoretic setup of a GAN so it can be combined with existing algorithms. However, it can exacerbate the problem of instability during training that is well-known for GANs. We suggest adding small noise to the constraints as a simple remedy that has performed well in our numerical experiments. The case of extrapolation (prediction) is more involved. During training, the GAN generator learns to interpolate a noisy version of the data and we enforce the constraints. This approach has connections with model reduction that we can utilize to improve the efficiency and accuracy of the training. Depending on the form of the constraints, we may enforce them also during prediction through a projection step. We provide examples of linear and nonlinear systems of differential equations to illustrate the various constructions.
description: 29 pages; v2 has major text revision/restructuring, includes results for the Lorenz system and has several more references
Efficient Consistency for Erasure-coded Data via Versioning Servers (CMU-CS-03-127)
Creators: name: Goodson, Garth R.
name: Wylie, Jay J.
name: Ganger, Gregory R.
name: Reiter, Michael K.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper describes the design, implementation and performance of a family of protocols for survivable, decentralized data storage. These protocols exploit storage-node versioning to efficiently achieve strong consistency semantics. These protocols allow erasure-codes to be used that achieve network and storage efficiency (and optionally data confidentiality in the face of server compromise). The protocol family is general in that its parameters accommodate a wide range of fault and timing assumptions, up to asynchrony and Byzantine faults of both storage-nodes and clients, with no changes to server implementation or client-server interface. Measurements of a prototype storage system using these protocols show that the protocol performs well under various system model assumptions, numbers of failures tolerated, and degrees of reader-writer concurrency.
Describing Charmonium Correlation Functions in Euclidean Time
Creators: name: Mocsy, Agnes
name: Petreczky, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a detailed investigation of the quark mass-dependence of charmonium correlators in Euclidean-time obtained using a potential model, as well as the comparison with results on isotropic lattice calculations performed at several lattice spacings.
description: Talk given at Zimanyi 75 Memorial Workshop on Hadronic and Quark Matter, Budapest, Hungary, 2-4 Jul 2007. To appear in EJP
Efficient Byzantine-tolerant Erasure-coded Storage (CMU-PDL-03-104)
Creators: name: Goodson, Garth R.
name: Wylie, Jay J.
name: Reiter, Michael K.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper describes a decentralized consistency protocol for survivable storage that exploits local data versioning within each storage-node. Such versioning enables the protocol to efficiently provide linearizability and wait-freedom of read and write operations to erasure-coded data in asynchronous environments with Byzantine failures of clients and servers. By exploiting versioning storage-nodes, the protocol shifts most work to clients and allows highly optimistic operation: reads occur in a single round-trip unless clients observe concurrency or write failures. Measurements of a storage system prototype using this protocol show that it scales well with the number of failures tolerated, and its single request response time compares favorably with an efficient implementation of Byzantine-tolerant state machine replication.
Scale-up of vortex based hydrodynamic cavitation devices: a case of degradation of di-chloro aniline in water
Creators: name: Ranade, Vivek
name: Sarvothaman, Varaha Prasad
name: Simpson, Alister
name: Nagarajan, Sanjay
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Hydrodynamic cavitation (HC) is being increasingly used in a wide range of applications. Unlike ultrasonic cavitation, HC is scalable and has been used at large scale industrial applications. However, no information about influence of scale on performance of HC is available in the open literature. In this work, we present for the first time, experimental data on use of HC for degradation of complex organic pollutants in water on four different scales (~ 200 times scale-up in terms of capacity). Vortex based HC devices offer various advantages like early inception, high cavitational yield and significantly lower propensity to clogging and erosion. We have used vortex based HC devices in this work. 2,4 dichloroaniline (DCA) – an aromatic compound with multiple functional groups was considered as a model pollutant. Degradation of DCA in water was performed using vortex-based HC devices with characteristic throat dimension, dt as 3, 6, 12 and 38 mm with scale-up of almost 200 time based on the flow rates (1.3 to 247 LPM). Considering the experimental constraints on operating the largest scale HC device, the experimental data is presented here at only one value of pressure drop across HC device (280 kPa). A previously used per-pass degradation model was extended to describe the experimental data for the pollutant used in this study and a generalised form is presented. The degradation performance was found to decrease with increase in the scale and then plateaus. Appropriate correlation was developed based on the experimental data. The developed approach and presented results provide a sound basis and a data set for further development of comprehensive multi-scale modelling of HC devices.
A Precise Error Bound for Quantum Phase Estimation
Creators: name: Chappell, James M.
name: Lohe, Max A.
name: von Smekal, Lorenz
name: Iqbal, Azhar
name: Abbott, Derek
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: 68Q12

description: Quantum phase estimation is one of the key algorithms in the field of quantum computing, but up until now, only approximate expressions have been derived for the probability of error. We revisit these derivations, and find that by ensuring symmetry in the error definitions, an exact formula can be found. This new approach may also have value in solving other related problems in quantum computing, where an expected error is calculated. Expressions for two special cases of the formula are also developed, in the limit as the number of qubits in the quantum computer approaches infinity and in the limit as the extra added qubits to improve reliability goes to infinity. It is found that this formula is useful in validating computer simulations of the phase estimation procedure and in avoiding the overestimation of the number of qubits required in order to achieve a given reliability. This formula thus brings improved precision in the design of quantum computers.
description: 6 pages
Modulating and attending the source image during encoding improves Multimodal Translation
Creators: name: Delbrouck, Jean-Benoit
name: Dupont, Stéphane
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We propose a new and fully end-to-end approach for multimodal translation where the source text encoder modulates the entire visual input processing using conditional batch normalization, in order to compute the most informative image features for our task. Additionally, we propose a new attention mechanism derived from this original idea, where the attention model for the visual input is conditioned on the source text encoder representations. In the paper, we detail our models as well as the image analysis pipeline. Finally, we report experimental results. They are, as far as we know, the new state of the art on three different test sets.
description: Accepted at NIPS Workshop
Le Rôle Transformateur des Incubateurs dans l'Écosystème Entrepreneurial Marocain
Creators: name: LACHEGUER, Abdennacer
name: BAKHAT, Mohcine
Publisher: name: Zenodo
Year: 2024
Subjects: Incubateurs; Écosystème entrepreneurial ; Entrepreneuriat au Maroc ; Développement entrepreneurial ; Soutien aux startups

description: Cette étude explore le rôle des incubateurs dans l'amélioration de l'écosystème entrepreneurial marocain, qui fait face à des défis tels que le manque de financement, les problèmes de gestion et la formation inadéquate. À travers une approche mixte, l'étude évalue l'impact des incubateurs sur les start-ups marocaines, en se concentrant sur les services offerts, les perceptions des entrepreneurs et les résultats. Malgré des efforts comme les programmes Moukawalati et INTELAKA, des défis structurels persistent. Les incubateurs offrent du mentorat, du financement et des réseaux professionnels comme solutions potentielles. Les résultats montrent un haut niveau de satisfaction, notamment en termes de mentorat et d'accès aux marchés, bien que de nombreux entrepreneurs aient rejoint les incubateurs principalement pour des raisons financières, ce qui suggère une prise de conscience limitée des services disponibles. Des obstacles comme la disponibilité des ressources et les défis géographiques affectent également l'efficacité. Les recommandations incluent l'amélioration des infrastructures, la formation des gestionnaires d'incubateurs, la création de réseaux de mentorat, un soutien financier accru et des systèmes d'évaluation robustes pour adapter les stratégies d'incubation.
Cadmium Resonance Parameters from Neutron Capture and Transmission Measurements at the RPI LINAC
Creators: name: Leinweber, G.
name: Barry, D. P.
name: Block, R. C.
name: Burke, J. A.
name: Remley, K. E.
name: Rapp, M. J.
name: Danon, Y.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Cadmium has been used historically as an important component of integral experiments because of its high thermal neutron absorption cross section. Correct interpretation of such experiments depends on accurate differential neutron cross section measurements. The 60 MeV electron accelerator at the Gaerttner LINAC Center was used to generate neutrons for neutron capture and total cross section measurements of natural Cd. Measurements were performed in the thermal and epithermal resonance range with sample thicknesses ranging from 1 x 10-4 to 4 x 10-2 atoms per barn. A full resonance region analysis was performed in order to determine the thermal cross sections and resonance integrals of the cadmium isotopes. The Bayesian R-Matrix code SAMMY 8.0 was used to shape fit the data and extract the resonance parameters. Resonance parameter and cross section uncertainties were determined from their primary components: transmission background, capture normalization, experimental resolution function, burst width, sample thickness, and counting statistics. The experiments were analyzed for consistency within the measured capture and transmission using multiple sample thicknesses. Results are compared to previously published measurements and evaluated nuclear libraries. No major changes to the thermal cross section or the first resonance in Cd113 were identified from the consensus achieved from measurements and evaluations over the past decade.
Multiplier bootstrap of tail copulas with applications
Creators: name: Bücher, Axel
name: Dette, Holger
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: For the problem of estimating lower tail and upper tail copulas, we propose two bootstrap procedures for approximating the distribution of the corresponding empirical tail copulas. The first method uses a multiplier bootstrap of the empirical tail copula process and requires estimation of the partial derivatives of the tail copula. The second method avoids this estimation problem and uses multipliers in the two-dimensional empirical distribution function and in the estimates of the marginal distributions. For both multiplier bootstrap procedures, we prove consistency. For these investigations, we demonstrate that the common assumption of the existence of continuous partial derivatives in the the literature on tail copula estimation is so restrictive, such that the tail copula corresponding to tail independence is the only tail copula with this property. Moreover, we are able to solve this problem and prove weak convergence of the empirical tail copula process under nonrestrictive smoothness assumptions that are satisfied for many commonly used models. These results are applied in several statistical problems, including minimum distance estimation and goodness-of-fit testing.
description: Published in at http://dx.doi.org/10.3150/12-BEJ425 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Testing the nonlinearity of the BVIcJHKs period-luminosity relations for the Large Magellanic Cloud Cepheids
Creators: name: Ngeow, C.
name: Kanbur, S.
name: Nanthakumar, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A number of recent works have suggested that the period-luminosity (PL) relation for the Large Magellanic Cloud (LMC) Cepheids exhibits a controversial nonlinear feature with a break period at 10 days. Therefore, the aim of this Research Note is to test the linearity/nonlinearity of the PL relations for the LMC Cepheids in BVIcJHKs band, as well as in the Wesenheit functions. We show that simply comparing the long and short period slopes, together with their associate d standard deviations, leads to a strictly larger error rate than applying rigorous statistical tests such as the F-test. We applied various statistical tests to the current published LMC Cepheid data. These statistical tests include the F-test, the testimator test, and the Schwarz information criterion (SIC) method. The results from these statistical tests strongly suggest that the LMC PL relation is nonlinear in BVIcJH band but linear in the Ks band and in the Wesenheit functions. Using the properties of period-color relations at maximum light and multi-phase relations, we believe that the nonlinear PL relation is not caused by extinction errors.
description: 6 pages, 5 figures and 2 tables, A&A accepted
Framework Confirmation by Newtonian Abduction
Creators: name: Curiel, Erik
Publisher: name: arXiv
Year: 2018
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The analysis of theory-confirmation generally takes the deductive form: show that a theory in conjunction with physical data and auxiliary hypotheses yield a prediction about phenomena; verify the prediction; provide a quantitative measure of the degree of theory-confirmation this yields. The issue of confirmation for an entire framework (e.g, Newtonian mechanics en bloc, as opposed, say, to Newton's theory of gravitation) either does not arise, or is dismissed in so far as frameworks are thought not to be the kind of thing that admits scientific confirmation. I argue that there is another form of scientific reasoning that has not received philosophical attention, what I call 'Newtonian abduction', that does provide confirmation for frameworks as a whole, and does so in two novel ways. (In particular, Newtonian abduction is not inference to the best explanation, but rather is closer to Peirce's original idea of abduction.) I further argue that Newtonian abduction is at least as important a form of reasoning in science as standard deductive and inductive forms. The form is beautifully summed up by Maxwell (1876): "The true method of physical reasoning is to begin with the phenomena and to deduce the forces from them by a direct application of the equations of motion."
description: 32 pages, 5 pages of bibliography; this version accepted by, forthcoming in the journal Synthese
Repulsive polarons and itinerant ferromagnetism in strongly polarized Fermi gases
Creators: name: Massignan, P.
name: Bruun, G. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the properties of a single impurity immersed in a Fermi sea. At positive energy and scattering lengths, we show that the system possesses a well-defined but metastable excitation, the repulsive polaron, and we calculate its energy, quasiparticle residue and effective mass. From a thermodynamic argument we obtain the number of particles in the dressing cloud, illustrating the repulsive character of the polaron. Identifying the important 2- and 3-body decay channels, we furthermore calculate the lifetime of the repulsive polaron. The stability conditions for the formation of fully spin polarized (ferromagnetic) domains are then examined for a binary mixture of atoms with a general mass ratio. Our results indicate that mass imbalance lowers the critical interaction strength for phase-separation, but that very short quasiparticle decay times will complicate the experimental observation of itinerant ferromagnetism. Finally, we present the spectral function of the impurity for various coupling strengths and momenta.
description: Substantial improvements to the section describing quasiparticle decays (included a discussion of two-body and three-body processes), and to the criteria for the stability of the itinerant ferromagnetic phase
Additional file 2 of Evolution of PHAS loci in the young spike of Allohexaploid wheat
Creators: name: Zhang, Rongzhi
name: Huang, Siyuan
name: Li, Shiming
name: Song, Guoqi
name: Li, Yulian
name: Li, Wei
name: Li, Jihu
name: Gao, Jie
name: Gu, Tiantian
name: Li, Dandan
name: Zhang, Shujuan
name: Li, Genying
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Additional file 2: Supplementary Figure 2. The number of PHAS loci in different tissues, including vegetative tissues such as leaves and reproductive tissues such as grain, spikelet, seeds, young spikes and anthers.
Dynamic Quarantine of Internet Worms (CMU-PDL-03-108)
Creators: name: Wong, Cynthia
name: Chenxi  Wang
name: Song, Dawn
name: Bielski, Stan
name: Ganger, Gregory R.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: If we limit the contact rate of worm traffic, can we alleviate and ultimately contain Internet worms? This paper sets out to answer this question. Specifically, we are interested in analyzing different deployment strategies of rate control mechanisms and the effect thereof on suppressing the spread of worm code. We use both analytical models and simulation experiments. We find that rate control at individual hosts or edge routers yields a slowdown that is linear in the number of hosts (or routers) with the rate limiting filters. Limiting contact rate at the backbone routers, however, is substantially more effective -- it renders a slowdown comparable to deploying rate limiting filters at every individual host that is covered. This result holds true even when susceptible and infected hosts are patched and immunized dynamically. To provide context for our analysis, we examine real traffic traces obtained from a campus computing network. We observe that rate throttling could be enforced with minimal impact on legitimate communications. Two worms observed in the traces, however, would be significantly slowed down.
Real-time density matrix renormalization group dynamics of spin and charge transport in push-pull polyenes and related systems
Creators: name: Dutta, Tirthankar
name: Ramasesha, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In this paper we investigate the effect of terminal substituents on the dynamics of spin and charge transport in donor-acceptor substituted polyenes ($D-(CH)_{x}-A$) chains, also known as push-pull polyenes. We employ long-range correlated model Hamiltonian for the $D-(CH)_{x}-A$ system, and time-dependent density matrix renormalization group technique for time propagating the wave packet obtained by injecting a hole at a terminal site, in the ground state of the system. Our studies reveal that the end groups do not affect spin and charge velocities in any significant way, but change the amount of charge transported. We have compared these push-pull systems with donor-acceptor substituted polymethine imine (PMI), $D-(CHN)_{x}-A$, systems in which besides electron affinities, the nature of $p_{z}$ orbitals in conjugation also alternate from site to site. We note that spin and charge dynamics in the PMIs are very different from that observed in the case of push-pull polyenes, and within the time scale of our studies, transport of spin and charge leads to the formation of a "quasi-static" state.
description: 7 pages, 2 tables, 8 figures; published version
Computer-assisted characterization of the Rh system epitopes: Searching for the missing antigens.
Creators: name: Estrada Juárez, Higinio
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310299
subject: Bioinformatics and computational biology not elsewhere classified
classificationCode: 320102
subject: Haematology

description: Possible epitopes of the 3D structures of RhD, RhCE, RhCe, RhcE, Rhce and variant proteins.E=EbC=Cbe=elc=clFor antigenic regions use Pymol with the next commandsset_color higher, [0.992, 0.490, 0.302] set_color moderate, [0.996, 0.851, 0.212] set_color lower, [0.416, 0.796, 0.945] set_color very_low, [0.051, 0.341, 0.827] color higher, b < 10000 • color moderate, b < 150 color lower, b < 90 color very_low, b < 40