cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Structure of the Young Star Cluster NGC 6231. II. Structure, Formation, and Fate
Creators: name: Kuhn, Michael A.
name: Getman, Konstantin V.
name: Feigelson, Eric D.
name: Sills, Alison
name: Gromadzki, Mariusz
name: Medina, Nicolás
name: Borissova, Jordanka
name: Kurtev, Radostin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The young cluster NGC 6231 (stellar ages ~2-7 Myr) is observed shortly after star-formation activity has ceased. Using the catalog of 2148 probable cluster members obtained from Chandra, VVV, and optical surveys (Paper I), we examine the cluster's spatial structure and dynamical state. The spatial distribution of stars is remarkably well fit by an isothermal sphere with moderate elongation, while other commonly used models like Plummer spheres, multivariate normal distributions, or power-law models are poor fits. The cluster has a core radius of $1.2\pm0.1$ pc and a central density of ~200 stars pc$^{-3}$. The distribution of stars is mildly mass segregated. However, there is no radial stratification of the stars by age. Although most of the stars belong to a single cluster, a small subcluster of stars is found superimposed on the main cluster, and there are clumpy non-isotropic distributions of stars outside ~4 core radii. When the size, mass, and age of NGC 6231 are compared to other young star clusters and subclusters in nearby active star-forming regions, it lies at the high-mass end of the distribution but along the same trend line. This could result from similar formation processes, possibly hierarchical cluster assembly. We argue that NGC 6231 has expanded from its initial size but that it remains gravitationally bound.
description: Accepted for publication in The Astronomical Journal; 27 pages, 2 tables, and 14 figures
A Quark Transport Theory to describe Nucleon--Nucleon Collisions
Creators: name: Kalmbach, U.
name: Vetter, T.
name: Biro, T. S.
name: Mosel, U.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: On the basis of the Friedberg-Lee model we formulate a semiclassical transport theory to describe the phase-space evolution of nucleon-nucleon collisions on the quark level. The time evolution is given by a Vlasov-equation for the quark phase-space distribution and a Klein-Gordon equation for the mean-field describing the nucleon as a soliton bag. The Vlasov equation is solved numerically using an extended testparticle method. We test the confinement mechanism and mean-field effects in 1+1 dimensional simulations.
description: 23 pages, LaTeX (figures available from the authors), UGI-93-1
ТРАНСФОРМАЦИЯ МЕХАНИЗМОВ ГОСУДАРСТВЕННОГО РЕГУЛИРОВАНИЯ ЭКОНОМИЧЕСКОГО РОСТА В СОВРЕМЕННЫХ УСЛОВИЯХ
Creators: name: ГИРАЕВ В.К.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2015
Subjects: ЭКОНОМИЧЕСКИЙ РОСТ
ECONOMIC GROWTH
ИНФЛЯЦИЯ
INFLATION
ГЛОБАЛЬНЫЙ КРИЗИС
GLOBAL CRISIS
ГОСУДАРСТВЕННОЕ РЕГУЛИРОВАНИЕ
GOVERNMENT REGULATION
ИНДИКАТИВНОЕ ПЛАНИРОВАНИЕ
INDICATIVE PLANNING
НАЛОГОВОЕ РЕГУЛИРОВАНИЕ
TAX REGULATION

description: В складывающихся условиях глобализации, развития международной конкуренции и интеграции национальных экономик в мировое хозяйство актуализируются проблемы обеспечения экономического роста путем трансформации сложившихся механизмов государственного регулирования. В условиях глобальной экономической нестабильности требуется фундаментальное переосмысление инструментов, средств, механизмов государственного регулирования национальных экономик, которые учитывали бы наблюдаемые тенденции. В статье обозначены основные проблемы макроэкономической стабилизации, сформулированы основные подходы, предложены инструменты эффективного государственного регулирования и обеспечения экономического роста в условиях глобальных вызовов, с которыми столкнулась Россия.
Competing forces in liquid metal electrodes and batteries
Creators: name: Ashour, Rakan F.
name: Kelley, Douglas H.
name: Salas, Alejandro
name: Starace, Marco
name: Weber, Norbert
name: Weier, Tom
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Liquid metal batteries are proposed for low-cost grid scale energy storage. During their operation, solid intermetallic phases often form in the cathode and are known to limit the capacity of the cell. Fluid flow in the liquid electrodes can enhance mass transfer and reduce the formation of localized intermetallics, and fluid flow can be promoted by careful choice of the locations and topology of a battery's electrical connections. In this context we study four phenomena that drive flow: Rayleigh-Bénard convection, internally heated convection, electro-vortex flow, and swirl flow, in both experiment and simulation. In experiments, we use ultrasound Doppler velocimetry (UDV) to measure the flow in a eutectic PbBi electrode at 160°C and subject to all four phenomena. In numerical simulations, we isolate the phenomena and simulate each separately using OpenFOAM. Comparing simulated velocities to experiments via a UDV beam model, we find that all four phenomena can enhance mass transfer in LMBs. We explain the flow direction, describe how the phenomena interact, and propose dimensionless numbers for estimating their mutual relevance. A brief discussion of electrical connections summarizes the engineering implications of our work.
ПРОБЛЕМЫ И ПУТИ РАЗВИТИЯ ПОЛИТИКИ ИМПОРТОЗАМЕЩЕНИЯ НА СОВРЕМЕННОМ ЭТАПЕ
Creators: name: МАММАЕВ Р.А.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2015
Subjects: ИМПОРТОЗАМЕЩЕНИЕ
IMPORT-SUBSTITUTION
РЕГИОН
REGION
ЭКОНОМИЧЕСКАЯ ПОЛИТИКА
ECONOMICPOLICY

description: В статье раскрываются вопросы формирования и совершенствования политики импортозамещения на современном этапе в стране в целом и по отдельным регионам. Даны замечания и рекомендации направленные на повышение эффективности политики импортозамещения.
title: ÐÐµÐ´ÐµÐ»Ñ Ð½Ð°ÑÐºÐ¸ Ð¤Ð¸Ð·ÐÐµÑ
title: ÑÐ±Ð¾ÑÐ½Ð¸Ðº Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² ÐÑÐµÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð½Ð°ÑÑÐ½Ð¾Ð¹ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ð¸, 3â7 Ð°Ð¿ÑÐµÐ»Ñ 2023 Ð³Ð¾Ð´Ð°
titleType: Subtitle
Creators: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾. Ð¤Ð¸Ð·Ð¸ÐºÐ¾-Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¸Ð½ÑÑÐ¸ÑÑÑ
name: "ÐÐµÐ´ÐµÐ»Ñ Ð½Ð°ÑÐºÐ¸ Ð¤Ð¸Ð·ÐÐµÑ ", Ð²ÑÐµÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ°Ñ Ð½Ð°ÑÑÐ½Ð°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (2023; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2023
Subjects: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾ â Ð¤Ð¸Ð·Ð¸ÐºÐ¾-Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¸Ð½ÑÑÐ¸ÑÑÑ
Ð¤Ð¸Ð·Ð¸ÐºÐ°
ÐÐµÑ Ð°Ð½Ð¸ÐºÐ°
ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÐºÐ°

description: Ð ÑÐ±Ð¾ÑÐ½Ð¸Ðº Ð²ÐºÐ»ÑÑÐµÐ½Ñ ÑÑÐ°ÑÑÐ¸ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð°ÑÐ¿Ð¸ÑÐ°Ð½ÑÐ¾Ð², Ð¼Ð¾Ð»Ð¾Ð´ÑÑ ÑÑÐµÐ½ÑÑ Ð¸ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ð¡ÐÐ±ÐÐ£, ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ¾Ð², Ð½Ð°ÑÑÐ½ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¹ Ð¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð°, Ð Ð¾ÑÑÐ¸Ð¸, Ð·Ð°ÑÑÐ±ÐµÐ¶Ð½ÑÑ ÑÑÑÐ°Ð½, Ð¿ÑÐ¸Ð½ÑÑÑÑ Ð½Ð° ÑÐµÐºÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð·Ð°ÑÐµÐ´Ð°Ð½Ð¸Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ð¸ Â«ÐÐµÐ´ÐµÐ»Ñ Ð½Ð°ÑÐºÐ¸ Ð¤Ð¸Ð·ÐÐµÑÂ». Ð¡ÑÐ°ÑÑÐ¸ Ð¾ÑÑÐ°Ð¶Ð°ÑÑ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÐ¹ ÑÑÐ¾Ð²ÐµÐ½Ñ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÑÐ°ÑÑÐ½Ð¸ÐºÐ¾Ð² ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ð¸ Ð² Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð¿ÑÐ¸ÐºÐ»Ð°Ð´Ð½Ð¾Ð¹ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÐºÐ¸, ÑÐ¸Ð·Ð¸ÐºÐ¸ Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÐºÐ¸. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ Ð¸Ð½ÑÐµÑÐµÑ Ð´Ð»Ñ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ¾Ð² Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¾Ð±Ð»Ð°ÑÑÑÑ Ð·Ð½Ð°Ð½Ð¸Ð¹, Ð´Ð»Ñ ÑÑÐ°ÑÐ¸ÑÑÑ Ð¸ ÑÐ°Ð±Ð¾ÑÐ½Ð¸ÐºÐ¾Ð² ÑÐ¸ÑÑÐµÐ¼Ñ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð°ÐºÐ°Ð´ÐµÐ¼Ð¸Ð¸ Ð½Ð°ÑÐº.
Probabilistic Tools for the Analysis of Randomized Optimization Heuristics
Creators: name: Doerr, Benjamin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This chapter collects several probabilistic tools that proved to be useful in the analysis of randomized search heuristics. This includes classic material like Markov, Chebyshev and Chernoff inequalities, but also lesser known topics like stochastic domination and coupling or Chernoff bounds for geometrically distributed random variables and for negatively correlated random variables. Most of the results presented here have appeared previously, some, however, only in recent conference publications. While the focus is on collecting tools for the analysis of randomized search heuristics, many of these may be useful as well in the analysis of classic randomized algorithms or discrete random structures.
description: 91 pages. Microscopic changes over the previous version
Everyday life 5
Creators: name: Adamou, Evangelia
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019
Subjects: subject: Ixcatec
subject: ixc

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: Recorded at RRM's yard. Were present RRM, JSB, LEA and DJC.
Asking Biological Questions of Physical Systems: the Device Approach to Emergent Properties
Creators: name: Eisenberg, Bob
Publisher: name: arXiv
Year: 2018
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: Life occurs in concentrated `Ringer Solutions' derived from seawater that Lesser Blum studied for most of his life. As we worked together, Lesser and I realized that the questions asked of those solutions were quite different in biology from those in the physical chemistry he knew. Biology is inherited. Information is passed by handfuls of atoms in the genetic code. A few atoms in the proteins built from the code change macroscopic function. Indeed, a few atoms often control biological function in the same sense that a gas pedal controls the speed of a car. Biological questions then are most productive when they are asked in the context of evolution. What function does a system perform? How is the system built to perform that function? What forces are used to perform that function? How are the modules that perform functions connected to make the machinery of life. Physiologists have shown that much of life is a nested hierarchy of devices, one on top of another, linking atomic ions in concentrated solutions to current flow through proteins, current flow to voltage signals, voltage signals to changes in current flow, all connected to make a regenerative system that allows electrical action potentials to move meters, under the control of a few atoms. The hierarchy of devices allows macroscopic properties to emerge from atomic scale interactions. The structures of biology create these devices. The concentration and electrical fields of biology power these devices, more than anything else. The resulting organisms reproduce. Evolution selects the organisms that reproduce more and thereby selects the devices that allow macroscopic control to emerge from the atomic structures of genes and proteins and their motions.
description: Version 3, modified preprint of publication
title: ADCO, Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Cart. 166 (11 H 64), 136 folios, f. 0027r
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2012
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 166 (11 H 64), 136 folios, f. 0027r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Cîteaux dit Cartulare Antiquum t.1 (début XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 166 (11 H 64), 136 folios, f. 0027r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
title: Petrology of a Large Granophyre-Rich Mesozoic Diabase Dike Near Farmville, Virginia
Creators: name: Rogan, Philip Thomas
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1993

description: Up to 37% granophyre occurs in the center of a 150m-wide Mesozoic diabase dike near Farmville, Virginia. The exceptional abundance of granophyre compared with other Mesozoic diabase dikes suggests unusual petrogenetic processes are involved in formation of the dike. Petrographic analyses show that granophyre increases from 5-10% near the flanks of the dike to a maximum of 37% in the core of the dike, and that granophyre distribution is approximately symmetrical about the center of the dike. Major and trace element concentrations parallel variations in the modal abundance of granophyre, with SiO2 , Na2O and K2O increasing in the granophyre-rich portion of the dike, and MgO and Cao decreasing. Fe2O3* and Al2O3 remain fairly constant. There is a sharp break, not a gradation, between the granophyre-rich and granophyre-poor compositions.

The dike is a high-TiO2 high-iron quartz-normative tholeiite (average SiO2 = 53 wt.%), while the granophyric core is much more evolved (max. SiO2 = 58.4 wt.%). In situ differentiation is inconsistent with the sharp compositional break between components of the dike. Multiple injection of melts generated by differentiation of a parental high-TiO2 high-iron quartz-normative tholeiite magma is possible, but cannot easily account for the constant Fe2O3* and increasing TiO2 in the granophyre. Magma mixing of basaltic and felsic melts or contamination by crustal melts is also inconsistent with TiO2 and Fe2O3* patterns, and cannot explain the compositional gap. Fractional crystallization and multiple injection of melts related to different parental magmas (TiO2 = 1.2% and TiO2 = 1.7%) is the most probable explanation for mineralogical and chemical variation in the Farmville dike.
Loki: A System for Serving ML Inference Pipelines with Hardware and Accuracy Scaling
Creators: name: Ahmad, Sohaib
name: Guan, Hui
name: Sitaraman, Ramesh K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The rapid adoption of machine learning (ML) has underscored the importance of serving ML models with high throughput and resource efficiency. Traditional approaches to managing increasing query demands have predominantly focused on hardware scaling, which involves increasing server count or computing power. However, this strategy can often be impractical due to limitations in the available budget or compute resources. As an alternative, accuracy scaling offers a promising solution by adjusting the accuracy of ML models to accommodate fluctuating query demands. Yet, existing accuracy scaling techniques target independent ML models and tend to underperform while managing inference pipelines. Furthermore, they lack integration with hardware scaling, leading to potential resource inefficiencies during low-demand periods. To address the limitations, this paper introduces Loki, a system designed for serving inference pipelines effectively with both hardware and accuracy scaling. Loki incorporates an innovative theoretical framework for optimal resource allocation and an effective query routing algorithm, aimed at improving system accuracy and minimizing latency deadline violations. Our empirical evaluation demonstrates that through accuracy scaling, the effective capacity of a fixed-size cluster can be enhanced by more than $2.7\times$ compared to relying solely on hardware scaling. When compared with state-of-the-art inference-serving systems, Loki achieves up to a $10\times$ reduction in Service Level Objective (SLO) violations, with minimal compromises on accuracy and while fulfilling throughput demands.
Faradaic effects in electrochemically gated graphene sensors in the presence of redox active molecules
Creators: name: Neubert, Tilmann Joachim
name: Wehrhold, Michel
name: Kaya, Nur Selin
name: Balasubramanian, Kannan
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: graphene
subject: redox
subject: field-effect
subject: electron transfer
subject: Faradaic current
subject: sensor
subject: 530 Physik

description: Field-effect transistors (FETs) based on graphene are promising devices for the direct sensing of a range of analytes in solution. We show here that the presence of redox active molecules in the analyte solution leads to the occurrence of heterogeneous electron transfer with graphene generating a Faradaic current (electron transfer) in a FET configuration resulting in shifts of the Dirac point. Such a shift occurs if the Faradaic current is significantly high, e.g. due to a large graphene area. Furthermore, the redox shift based on the Faradaic current, reminiscent of a doping-like effect, is found to be non-Nernstian and dependent on parameters known from electrode kinetics in potentiodynamic methods, such as the electrode area, the standard potential of the redox probes and the scan rate of the gate voltage modulation. This behavior clearly differentiates this effect from other transduction mechanisms based on electrostatic interactions or molecular charge transfer doping effects, which are usually behind a shift of the Dirac point. These observations suggest that large-area unmodified/pristine graphene in field-effect sensors behaves as a non-polarized electrode in liquid. Strategies for ensuring a polarized interface are discussed.
Downward shift of infrared conductivity spectral weight at the DDW transition: role of anisotropy
Creators: name: Gerami, Rouzbeh
name: Nayak, Chetan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider the motion of conductivity spectral weight at a finite-temperature phase transition at which $d_{x^2-y^2}$ density-wave (DDW) order develops. We show that there is a shift of spectral weight to higher frequencies if the quasiparticle lifetime is assumed to be isotropic, but a shift to lower frequencies if the quasiparticle lifetime is assumed to be anisotropic. We suggest that this is consistent with recent experiments on the pseudogap phase of the cuprate superconductors and, therefore, conclude that the observation of a downward shift in the spectral weight at the pseudogap temperature does not militate against the DDW theory of the pseudogap.
description: 8 pages, 7 figures. Added references
Gate induced monolayer behavior in twisted bilayer black phosphorus
Creators: name: Sevik, Cem
name: Wallbank, John R.
name: Gulseren, Oguz
name: Peeters, Francois M.
name: Cakır, Deniz
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Optical and electronic properties of black phosphorus strongly depend on the number of layers and type of stacking. Using first-principles calculations within the framework of density functional theory, we investigate the electronic properties of bilayer black phosphorus with an interlayer twist angle of 90$^\circ$. These calculations are complemented with a simple $\vec{k}\cdot\vec{p}$ model which is able to capture most of the low energy features and is valid for arbitrary twist angles. The electronic spectrum of 90$^\circ$ twisted bilayer black phosphorus is found to be x-y isotropic in contrast to the monolayer. However x-y anisotropy, and a partial return to monolayer-like behavior, particularly in the valence band, can be induced by an external out-of-plane electric field. Moreover, the preferred hole effective mass can be rotated by 90$^\circ$ simply by changing the direction of the applied electric field. In particular, a +0.4 (-0.4) V/Å out-of-plane electric field results in a $\sim$60\% increase in the hole effective mass along the y (x) axis and enhances the $m^*_{y}/m^*_{x}$ ($m^*_{x}/m^*_{y}$) ratio as much as by a factor of 40. Our DFT and $\vec{k}\cdot\vec{p}$ simulations clearly indicate that the twist angle in combination with an appropriate gate voltage is a novel way to tune the electronic and optical properties of bilayer phosphorus and it gives us a new degree of freedom to engineer the properties of black phosphorus based devices.
description: 8 pages, 8 figures
The aquaponic principle—It is all about coupling
Creators: name: Baganz, Gösta F.M.
name: Junge, Ranka
name: Portella, Maria Célia
name: Goddek, Simon
name: Keesman, Karel
name: Baganz, Daniela
name: Staaks, Georg
name: Shaw, Christopher
name: Lohrberg, Frank
name: Kloas, Werner
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: aquaponic farming
subject: aquaponics
subject: coupling degree
subject: coupling type
subject: permanently/on‐demand coupled
subject: trans‐aquaponics
subject: 550 Geowissenschaften
subject: 630 Landwirtschaft und verwandte Bereiche
subject: 570 Biologie

description: The aquaponic principle is the coupling of animal aquaculture (e.g. fish) with plant production (e.g. vegetables) for saving resources. At present, various definitions of aquaponics exist, some bearing the risk of misinterpretation by dismissing the original meaning or being contradictory. In addition, there is no standard terminology for the aspects of coupling between the aquaponic subsystems. In this study, we addressed both issues. (1) We developed new or revised definitions that are summarised by: Aquaponic farming comprises aquaponics (which couples tank‐based animal aquaculture with hydroponics) and trans‐aquaponics, which extends aquaponics to tankless aquaculture as well as non‐hydroponics plant cultivation methods. Within our conceptual system, the term aquaponics corresponds to the definitions of FAO and EU. (2) A system analysis approach was utilised to explore different aquaponic setups aiming to better describe the way aquaponic subsystems are connected. We introduced the new terms ‘coupling type’ and ‘coupling degree’, where the former qualitatively characterises the water‐mediated connections of aquaponic subsystems. A system with on‐demand nutrient water supply for the independent operating plant cultivation is an ‘on‐demand coupled system’ and we propose to deprecate the counterintuitive term ‘decoupled system’ for this coupling type. The coupling degree comprises a set of parameters to quantitatively determine the coupling's efficiency of internal streams, for example, water and nutrients. This new framework forms a basis for improved communication, provides a uniform metric for comparing aquaponic facilities, and offers criteria for facility optimisation. In future system descriptions, it will simplify evaluation of the coupling's contribution to sustainability of aquaponics.
Perturbed thermodynamics and thermodynamic geometry of a static black hole in $f (R)$ gravity
Creators: name: Upadhyay, Sudhaker
name: Soroushfar, Saheb
name: Saffari, Reza
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we consider a static black hole in $f(R)$ gravity. We recapitulate the expression for corrected thermodynamic entropy of this black hole due to small fluctuations around equilibrium. Also, we study the geometrothermodynamics (GTD) of this black hole and investigate the adaptability of the curvature scalar of geothermodynamic methods with phase transition points of this black hole. Moreover, we study the effect of correction parameter on thermodynamic behaviour of this black hole. We observe that the singular point of the curvature scalar of Ruppeiner metric coincides completely with zero point of the heat capacity and the deviation occurs with increasing correction parameter.
description: 16 pages, 16 figures, to appear in MPLA
title: ADCO, Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Cart. 29 (G 134), 996 folios, f. 0586
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/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0586, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0586, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Iterative Solution for Effective Interactions in a System with Non-degenerate Unperturbed Energies
Creators: name: Suzuki, K.
name: Okamoto, R.
name: Ellis, P. J.
name: Kuo, T. T. S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We generalize the Lee-Suzuki iteration method for summing the folded diagram series to the case where the unperturbed model-space energies are non-degenerate. A condition is derived for the convergence of the iteration scheme and this depends on the choice of the model space projection operators. Two choices are examined, in the first the projection operators are defined in terms of the unperturbed states and in the second they are defined in terms of the eigenfunctions obtained at each stage of the iteration. As is illustrated by calculations with a simple model, the second procedure gives the better convergence and, by suitable choice of the starting energies, allows the reproduction of any subset of the exact eigenvalues.
description: Latex, 23 pages, 4 figures (postscript, available from authors), Minnesota preprint NUC-MINN-93/11-T
ОСОБЕННОСТИ ОЦЕНКИ ЭФФЕКТИВНОСТИ ФУНКЦИОНИРОВАНИЯ МУНИЦИПАЛЬНЫХ ОБРАЗОВАНИЙ КАБАРДИНО-БАЛКАРСКОЙ РЕСПУБЛИКИ
Creators: name: ХАЧИРОВ И.Э.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2015
Subjects: МУНИЦИПАЛЬНОЕ ОБРАЗОВАНИЕ
MUNICIPALITY
КАБАРДИНО-БАЛКАРСКАЯ РЕСПУБЛИКА
KABARDINO-BALKARIA REPUBLIC
СОЦИАЛЬНО-ЭКОНОМИЧЕСКИЙ МОНИТОРИНГ
SOCIO-ECONOMIC MONITORING

description: В статье рассмотрена методика рейтинга муниципальных образований (с учётом информационного обеспечения, расчётов нормализованных характеристик ключевых показателей и количественного измерения их значимости), на основе которой осуществлена интегральная оценка социально-экономического состояния и развития муниципальных образований в регионе.
Self-dual Chern-Simons solitons in noncommutative space
Creators: name: Lozano, G. S.
name: Moreno, E. F.
name: Schaposnik, F. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct exact soliton solutions to the Chern-Simons-Higgs system in noncommutative space, for non-relativistic and relativistic models. In both cases we find regular vortex-like solutions to the BPS equations which approach the ordinary selfdual non-topological and topological solitons when the noncommutative parameter $θ$ goes to zero.
description: 15 pages, 4 figures
Exterior Companions to Hot Jupiters Orbiting Cool Stars are Coplanar
Creators: name: Becker, Juliette C.
name: Vanderburg, Andrew
name: Adams, Fred C.
name: Khain, Tali
name: Bryan, Marta
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The existence of hot Jupiters has challenged theories of planetary formation since the first extrasolar planets were detected. Giant planets are generally believed to form far from their host stars, where volatile materials like water exist in their solid phase, making it easier for giant planet cores to accumulate. Several mechanisms have been proposed to explain how giant planets can migrate inward from their birth sites to short-period orbits. One such mechanism, called Kozai-Lidov migration, requires the presence of distant companions in orbits inclined by more than $\sim40$ degrees with respect to the plane of the hot Jupiter's orbit. The high occurrence rate of wide companions in hot Jupiter systems lends support to this theory for migration. However, the exact orbital inclinations of these detected planetary and stellar companions is not known, so it is not clear whether the mutual inclination of these companions is large enough for the Kozai-Lidov process to operate. This paper shows that in systems orbiting cool stars with convective outer layers, the orbits of most wide planetary companions to hot Jupiters must be well aligned with the orbits of the hot Jupiters and the spins of the host stars. For a variety of possible distributions for the inclination of the companion, the width of the distribution must be less than $\sim20$ degrees to recreate the observations with good fidelity. As a result, the companion orbits are likely well-aligned with those of the hot Jupiters, and the Kozai-Lidov mechanism does not enforce migration in these systems.
description: accepted to AJ
The exact solution of the Riemann problem with non-zero tangential velocities in relativistic hydrodynamics
Creators: name: Pons, Jose A.
name: Marti, Jose Ma.
name: Mueller, Ewald
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We have generalised the exact solution of the Riemann problem in special relativistic hydrodynamics for arbitrary tangential flow velocities. The solution is obtained by solving the jump conditions across shocks plus an ordinary differential equation arising from the self-similarity condition along rarefaction waves, in a similar way as in purely normal flow. The dependence of the solution on the tangential velocities is analysed, and the impact of this result on the development of multidimensional relativistic hydrodynamic codes (of Godunov type) is discussed.
description: 26 pages, 4 figures. Accepted for publication in Journal of Fluid Mechanics
Additional file 1: of The balance of Bmp6 and Wnt10b regulates the telogen-anagen transition of hair follicles
Creators: name: Wu, Pan
name: Zhang, Yiming
name: Xing, Yizhan
name: Xu, Wei
name: Guo, Haiying
name: Deng, Fang
name: Ma, Xiaogen
name: Li, Yuhong
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Figure S1. Expression of BMP6 in AdBMP6 treated hair follicle. Figure S2. Expression pattern of hair structure markers in AdBMP6 treated hair follicle (PDF 1846 kb)
The Host Galaxy Fluxes of Active Galaxy Nuclei Are Generally Overestimated by the Flux Variation Gradient Method
Creators: name: Cai, Minxuan
name: Wan, Zhen
name: Cai, Zhenyi
name: Fan, Lulu
name: Wang, Junxian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In terms of the variable nature of normal active galaxy nuclei (AGN) and luminous quasars, a so-called flux variation gradient (FVG) method has been widely utilized to estimate the underlying non-variable host galaxy fluxes. The FVG method assumes an invariable AGN color, but this assumption has been questioned by the intrinsic color variation of quasars and local Seyfert galaxies. Here, using an up-to-date thermal fluctuation model to simulate multi-wavelength AGN variability, we theoretically demonstrate that the FVG method generally overestimates the host galaxy flux; that is, it is more significant for brighter AGN/quasars. Furthermore, we observationally confirm that the FVG method indeed overestimates the host galaxy flux by comparing it to that estimated through other independent methods. We thus caution that applying the FVG method should be performed carefully in the era of time-domain astronomy.
Stellar Inversion Techniques
Creators: name: Reese, Daniel R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stellar seismic inversions have proved to be a powerful technique for probing the internal structure of stars, and paving the way for a better understanding of the underlying physics by revealing some of the shortcomings in current stellar models. In this lecture, we provide an introduction to this topic by explaining kernel-based inversion techniques. Specifically, we explain how various kernels are obtained from the pulsation equations, and describe inversion techniques such as the Regularised Least-Squares (RLS) and Optimally Localised Averages (OLA) methods.
description: 20 pages, 8 figures. Lecture presented at the IVth Azores International Advanced School in Space Sciences on "Asteroseismology and Exoplanets: Listening to the Stars and Searching for New Worlds" (arXiv:1709.00645), which took place in Horta, Azores Islands, Portugal in July 2016
Microscopic multicluster description of neutron-halo nuclei with a stochastic variational method
Creators: name: Varga, K.
name: Suzuki, Y.
name: Lovas, R. G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: To test a multicluster approach for halo nuclei, we give a unified description for the ground states of $^6$He and $^8$He in a model comprising an $α$ cluster and single-neutron clusters. The intercluster wave function is taken a superposition of terms belonging to different arrangements, each defined by a set of Jacobi coordinates. Each term is then a superposition of products of gaussian functions of the individual Jacobi coordinates with different widths, projected to angular momenta $l=0$ or 1. To avoid excessively large dimensions and ``overcompleteness", stochastic methods were tested for selecting the gaussians spanning the basis. For $^6$He, we were able to calculate ground-state energies that are virtully exact within the subspace defined by the arrangements and $l$ values, and we found that preselected random sets of bases (with or without simulated annealing) yield excellent numerical convergence to this ``exact" value with thoroughly truncated bases. For $^8$He good energy convergence was achieved in a state space comprising three arrangements with all $l=0$, and there are indications showing that the contributions of other subspaces are likely to be small. The $^6$He and $^8$He energies are reproduced by the same effective force very well, and the matter radii obtained are similar to those of other sophisticated calculations.
description: Latex , 8 figures available on request, ATOMKI-4-1993-P
Coexistence of sharp quasiparticle dispersions and disorder features in graphite
Creators: name: Zhou, S. Y.
name: Gweon, G. -H.
name: Spataru, C. D.
name: Graf, J.
name: Lee, D. -H.
name: Louie, Steven G.
name: Lanzara, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Angle resolved photoelectron spectroscopy (ARPES) on azimuthally disordered graphite demonstrates that sharp quasiparticle dispersions along the radial direction can coexist with a complete lack of dispersion along the azimuthal direction. This paradoxical coexistence can be explained in terms of van Hove singularities in the angular density of states. In addition, nondispersive features at the energies of band maxima and saddle points are observed and possible explanations are discussed. This work opens a possibility of studying the electronic structure of layered materials using ARPES even when large single crystals are difficult to obtain.
description: 4 pages, 3 figures
FUSE Observations of the Stellar Winds of Two O7 Supergiants in the Magellanic Clouds
Creators: name: Fullerton, A. W.
name: Crowther, P. A.
name: De Marco, O.
name: Hutchings, J. B.
name: Bianchi, L.
name: Brownsberger, K. R.
name: Massa, D. L.
name: Morton, D. C.
name: Rachford, B. L.
name: Snow, T. P.
name: Sonneborn, G.
name: Tumlinson, J.
name: Willis, A. J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compare the stellar wind features in far-UV spectra of Sk -67 111, an O7 Ib(f) star in the LMC, with Sk 80, an O7 Iaf+ star in the SMC. The most striking differences are that Sk 80 has a substantially lower terminal velocity, much weaker O VI absorption, and stronger S IV emission. We have used line-blanketed, hydrodynamic, non-LTE atmospheric models to explore the origin of these differences. The far-UV spectra require systematically lower stellar temperatures than previous determinations for O7 supergiants derived from plane-parallel, hydrostatic models of photospheric line profiles. At these temperatures, the O VI in Sk -67 111 must be due primarily to shocks in the wind.
description: 10 pages, 2 figures. AASTeX preprint format. This paper will appear in a special issue of Astrophysical Journal Letters devoted to the first scientific results from the FUSE mission
Proton halo of $^8$B in a microscopic model
Creators: name: Csoto, Attila
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The experimentally predicted existence of a proton halo in $^8$B is confirmed by dynamical microscopic multiconfiguration cluster model calculations. The thickness of the proton halo in $^8$B is 0.5 $fm$ while in $^8$Li a 0.4 $fm$ thick neutron halo has been found. It is shown that the huge quadrupole moment of $^8$B partly comes from the very distortable $^7$Be core.
description: 5 pages, LATEX with REVTEX, submitted to Phys. Lett. B
Experimental cyclic inter-conversion between Coherence and Quantum Correlations
Creators: name: Wu, Kang-Da
name: Hou, Zhibo
name: Zhao, Yuan-Yuan
name: Xiang, Guo-Yong
name: Li, Chuan-Feng
name: Guo, Guang-Can
name: Ma, Jiajun
name: He, Qiong-Yi
name: Thompson, Jayne
name: Gu, Mile
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum resource theories seek to quantify sources of non-classicality that bestow quantum technologies their operational advantage. Chief among these are studies of quantum correlations and quantum coherence. The former to isolate non-classicality in the correlations between systems, the latter to capture non-classicality of quantum superpositions within a single physical system. Here we present a scheme that cyclically inter-converts between these resources without loss. The first stage converts coherence present in an input system into correlations with an ancilla. The second stage harnesses these correlations to restore coherence on the input system by measurement of the ancilla. We experimentally demonstrate this inter-conversion process using linear optics. Our experiment highlights the connection between non-classicality of correlations and non-classicality within local quantum systems, and provides potential flexibilities in exploiting one resource to perform tasks normally associated with the other.
description: 8 pages, 4 figures, comments welcome
Additional file 2: of The effect of post mastectomy radiation therapy on breast reconstruction with and without acellular dermal matrix: a systematic review and meta-analysis protocol
Creators: name: Chung, Amy
name: Stein, Michael
name: Ghumman, Ammara
name: Zhang, Jing
Publisher: name: figshare
Year: 2019
Subjects: Biological Sciences not elsewhere classified
Developmental Biology
Science Policy

description: PRISMA-P Checklist for study. (DOCX 9 kb)
Correlation functions in the non-commutative Wess-Zumino-Witten model
Creators: name: Lugo, Adrián R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a systematic perturbative expansion and compute the one-loop two-points, three-points and four-points correlation functions in a non-commutative version of the U(N) Wess-Zumino-Witten model in different regimes of the $θ$-parameter showing in the first case a kind of phase transition around the value $θ_c = \frac{\sqrt{p^2 + 4 m^2}}{Λ^2 p}$, where $Λ$ is a ultraviolet cut-off in a Schwinger regularization scheme. As a by-product we obtain the functions of the renormalization group, showing they are essentially the same as in the commutative case but applied to the whole U(N) fields; in particular there exists a critical point where they are null, in agreement with a recent background field computation of the beta-function, and the anomalous dimension of the Lie algebra-valued field operator agrees with the current algebra prediction. The non-renormalization of the level $k$ is explicitly verified from the four-points correlator, where a left-right non-invariant counter-term is needed to render finite the theory, that it is however null on-shell. These results give support to the equivalence of this model with the commutative one.
description: 21 pages, latex, no figures, shortened version to appear in Physics Letters B
Control of light polarization by voltage tunable excitonic metasurfaces
Creators: name: Lobanov, S. V.
name: Gippius, N. A.
name: Tikhodeev, S. G.
name: Butov, L. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a light emitting device with voltage controlled degree of linear polarization of emission. The device combines the ability of metasurfaces to control light with an energy-tunable light source based on indirect excitons in coupled quantum well heterostructures.
Motion of three-dimensional elastic films by anisotropic surface diffusion with curvature regularization
Creators: name: Fonseca, Irene
name: Fusco, Nicola
name: Leoni, Giovanni
name: Morini, Massimiliano
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Short time existence for a surface diffusion evolution equation with curvature regularization is proved in the context of epitaxially strained three-dimensional films. This is achieved by implementing a minimizing movement scheme, which is hinged on the H−1-gradient flow structure underpinning the evolution law. Long-time behavior and Liapunov stability in the case of initial data close to a flat configuration are also addressed.
Rotational symmetry breaking in small-area circular vertical cavity surface emitting lasers
Creators: name: Babushkin, Ihar
name: Bandelow, Uwe
name: Vladimirov, Andrei
Publisher: name: Weierstrass Institute
Year: 2010
Subjects: subject: Vertical cavity surface emitting laser
subject: Laser dynamics
subject: Carrier diffusion
subject: 78A60
subject: 70K05
subject: 70K45
subject: 42.65.Sf
subject: 42.55.Px
subject: 42.60.Jf

description: We investigate theoretically the dynamics of three low-order transverse modes in a small-area vertical cavity surface emitting laser. We demonstrate the breaking of axial symmetry of the transverse field distribution in such a device. In particular, we show that if the linewidth enhancement factor is sufficiently large dynamical regimes with broken axial symmetry can exist up to very high diffusion coefficients 10 um^2/ns.
Ion-exchange medium coated with abundant small zwitterions for the purification of soluble proteins
Creators: name: Chen, Tong
name: Yang, Linyu
name: Yang, Xiaolan
name: Liao, Fei
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: A new ion-exchange medium was prepared from magnetic particles of ∼1.0 µm through coating with small zwitterions and then functionalizing with ampholytic groups for the isoelectric point of ∼6.4 and denoted MSP-ZEWB. With Meyerozyma guilliermondii uricase (MGU) as the model of soluble proteins, the purification of a protein via ion-exchange was compared between MSP-ZEWB through elution in discontinuous mode and Toyopearl SP-650C as a classical ion-exchange medium through elution in continuous mode. MGU was adsorbed at pH 7.6 or 8.0 and eluted via competitive displacement by NaCl or electrostatic repulsions with an elution buffer at pH 10 to reverse the type of net charges of MGU. From MSP-ZEWB, MGU was eluted more rapidly with the elution percentages higher than those from Toyopearl SP-650C. For yielding a unit of MGU activity, MSP-ZEWB gave the elution solution volumes that were ∼50% of those obtained with Toyopearl SP-650C. The yields of MGU of the highest purity from MSP-ZEWB were higher than those from Toyopearl SP-650C, but the highest purification folds with both media were comparable. MSP-ZEWB regenerated for 16 times still showed the consistent purification efficacy. Therefore, the ion-exchange media bearing small zwitterion coats showed great promise for the purification of soluble proteins.
Charge Ordered Insulator without Magnetic Order Studied by Correlator Projection Method
Creators: name: Hanasaki, Kota
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Hubbard model with additional intersite interaction `$V$' (the extended Hubbard model) is investigated by the correlator projection method (CPM). CPM is a newly developed numerical method which combines the equation-of-motion approach and the dynamical mean-field theory. Using this method, properties of the extended Hubbard Model at quarter filling are discussed with special emphasis on the metal-insulator transition induced by electron-electron correlations. The result shows a metal-insulator transition to a charge ordered insulator with antiferromagnetic order at low temperatures, but a charge ordered insulator without magnetic symmetry breaking at intermediate temperatures. Here, the magnetic order is found to be suppressed to low temperatures because of the smallness of the exchange coupling $J_{\rm eff}$. The present results are in sharp contrast with the Hatree-Fock approximation whereas in agreement with the experimental results on quarter-filled materials with strong correlations, such as organic conductors.
description: 28 pages, 8 figures