cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterizing the radial oxygen abundance distribution in disk galaxies
Creators: name: Zinchenko, I. A.
name: Just, A.
name: Pilyugin, L. S.
name: Lara-Lopez, M. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the possible dependence of the radial oxygen abundance distribution on non-axisymmetrical structures (bar/spirals) and other macroscopic parameters such as the mass, the optical radius R25, the color g-r, and the surface brightness of the galaxy. A sample of disk galaxies from the CALIFA DR3 is considered. We adopted the Fourier amplitude A2 of the surface brightness as a quantitative characteristic of the strength of non-axisymmetric structures in a galactic disk, in addition to the commonly used morphologic division for A, AB, and B types based on the Hubble classification. To distinguish changes in local oxygen abundance caused by the non-axisymmetrical structures, the multiparametric mass--metallicity relation was constructed as a function of parameters such as the bar/spiral pattern strength, the disk size, color index g-r in the SDSS bands, and central surface brightness of the disk. The gas-phase oxygen abundance gradient is determined by using the R calibration. We find that there is no significant impact of the non-axisymmetric structures such as a bar and/or spiral patterns on the local oxygen abundance and radial oxygen abundance gradient of disk galaxies. Galaxies with higher mass, however, exhibit flatter oxygen abundance gradients in units of dex/kpc, but this effect is significantly less prominent for the oxygen abundance gradients in units of dex/R25 and almost disappears when the inner parts are avoided. We show that the oxygen abundance in the central part of the galaxy depends neither on the optical radius R25 nor on the color g-r or the surface brightness of the galaxy. Instead, outside the central part of the galaxy, the oxygen abundance increases with g-r value and central surface brightness of the disk.
description: 11 pages, 6 figures; accepted for publication in A&A
Phase Diagram and Thermodynamic Properties of the Square Lattice of Antiferromagnetic Spin-1/2 Triangles in La_4Cu_3MoO_12
Creators: name: Wessel, Stefan
name: Haas, Stephan
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic phase diagram and the thermodynamic properties of a square lattice containing antiferromagnetically coupled spin-1/2 triangles are studied. A Heisenberg Hamiltonian with three strong intra-triangle exchange coupling constants and one weak inter-triangle exchange coupling constant is proposed to model the interacting Cu^2+ ions of the Cu_3MoO_4 planes in La_4Cu_3MoO_12. Depending on the ratio of the intra-triangle coupling constants, various long-ranged magnetic phases are shown to compete at low temperatures. A comparison of numerical calculations of thermodynamic properties in the model Hamiltonian with recent experiments on La_4Cu_3MoO_12 suggests that the spins in this material order antiferromagnetically along the x-direction and ferromagnetically along the y-direction of the Cu_3MoO_4 planes. The temperature dependence of the uniform magnetic susceptibility, the heat capacity, and the entropy are calculated and are shown to be in qualitative agreement with the experiments on this compound.
description: RevTex, 4 pages with 3 figures
Aequorea conica : Browne 1905
Creators: name: Buecher, Emmanuelle
name: Goy, Jacqueline
name: J, Mark
name: Gibbons
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Aequoreidae
Aequorea
Aequorea conica

description: Aequorea conica Browne, 1905
 Aequorea conica: Browne 1905: 145, pl. 1, fig. 2; Kramp 1961: 206; 1968: 100, fig. 272.
 Description: Ten specimens from four stations. Conical, domed umbrella, slightly taller than broad, without apical projection; up to 3 mm in diameter. Exumbrella surface smooth, without rows of gelatinous papillae. Mesoglea very thick, thinning slightly to margin.Velum narrow. Peripheral canal and up to 16 radial canals present, latter narrow, with smooth margin and unbranched; without centripetal canals. With 25–30 tentacles connected to peripheral canal, arising from small, conical bulbs on umbrella margin. Tentacles of similar size, long, hollow, unbranched, filiform. As many small rudimentary bulbs as marginal tentacles. All marginal bulbs without keel and with neither excretory papillae nor excretory pores. Lateral and marginal cirri absent. Manubrium up to 1/2 umbrella width, broad and flat, not extending to velum, not connected to radial canals by mesenteries. Mouth simple, circular, with 16 credulated lips; gastric peduncle absent. Statocysts closed, twice as numerous as tentacles. Without ocelli. Gonads rarely extending to half length of radial canals; sac-like, pendant, closer to stomach than margin.
Material examined: H5049.
 Comments: see A. forskalea.
 Distribution: Widespread in tropical and temperate waters of Indo-West Pacific. Previously collected in the Mozambique Channel (Kramp 1965), off the Seychelles archipelagos (Bouillon 1978 b) and from along the east coast of South Africa (Millard 1975). Neritic.
description: Published as part of Buecher, Emmanuelle, Goy, Jacqueline, J, Mark & Gibbons, 2005, Hydromedusae of the Agulhas Current, pp. 27-69 in African Invertebrates 46 on page 52, DOI: 10.5281/zenodo.7909936
title: 乌希里克幅地质图（M45E024018）
title: 新疆阿勒泰市乌齐里克他乌一带1∶50 000马米拉喀拉萨孜-C、乌希里克、辉腾阿尔善-C区域地质矿产调查报告
titleType: Other
Creators: name: 李;何;田;曾;张;摆;赵;卢;赵;蔺;霍;王;赖;章, 念凤;峻岭;红彪;祥武;鹏伟;翔;军;乐;锋;如喜;东亮;建军;月荣;享云
Publisher: name: 全国地质资料馆
Year: 2018
Subjects: subject: 喀纳斯群;侵入岩;构造格架;金矿化;铜矿化

description: “新疆阿勒泰市乌齐里克他乌一带（M45E024017、M45E024018、M45E024019）1∶5万区域地质矿产调查”是中国地质调查局下达的项目（基[2013]01-021-007、基[2014]01-023-003、基[2015]02-14-01-001），承担单位为中国人民武装警察部队黄金第八支队，项目编码为12120113071900，工作起止时间2013年-2015年，区域地质矿产调查面积1035平方千米，所属计划项目为“西昆仑与青东基础地质调查项目”。三年区域地质调查工作，对测区进行了1∶2.5万标准分幅遥感解译，对测区构造、岩石、地层和蚀变带等各类地质体都进行了准确解译和勾绘，提取了10多处矿化蚀变信息，这些成果对地质填图和找矿工作大有益处；综合前人成果，建立了测区地层格架系统，将测区地层划分为2个群级地层单位、1个岩组、2个组级地层单位和3个段级地层单位，特别是将该处争议较大的中深变质岩归属做以合理的划分。对震旦-寒武统喀纳斯群进行了精细划分，分析其形成时代和环境。对区内的火山岩划分了火山活动旋回和喷发韵律，开展了岩石学、岩石地球化学和火山岩相研究，探讨了其形成的构造环境。对侵入岩进行详细解体，建立了不同时代的侵入岩序列；对各序列侵入岩开展了岩石学及岩石地球化学分析研究，探讨了其成因及形成环境；新获得15件锆石U-Pb同位素年龄，厘定为中晚奥陶世、志留纪、早泥盆世、中泥盆世、晚三叠世五组，为研究该区侵入岩的时空演化提供了重要的年代学依据。对测区变质岩的岩石类型、时空分布、变质作用进行了总结，划分出2个变质相和4个变质带，对变质作用温压条件进行了讨论，为建立区内构造－热事件序列提供了资料。对区内褶皱、断裂、韧性剪切带的规模、性质、产状及运动学特征进行了调查研究，划分了构造单元和构造层，建立了区内构造格架，探讨了地质构造发展史。圈定化探单元素异常297处、综合异常32处，圈定局部磁异常11个，新发现金、铜等矿化点11处，划分成矿远景区7处，其中Ⅱ级成矿远景区4个，Ⅲ级成矿远景区3个，在此基础上划分出B类找矿靶区1个，C类找矿靶区1个，为下步找矿指明了方向。编制了全区12幅1∶2.5万图幅野外总图、实际材料图库和3幅1∶5万图幅编稿原图和成果数据库，数据质量较好。
Two $θ_{μν}$ -deformed covariant relativistic quantum phase spaces as Poincare-Hopf algebroids
Creators: name: Lukierski, Jerzy
name: Woronowicz, Mariusz
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider two quantum phase spaces which can be described by two Hopf algebroids linked with the well-known $θ_{μν}$-deformed $D=4$ Poincare-Hopf algebra $\mathbb{H}$. The first algebroid describes $θ_{μν}$-deformed relativistic phase space with canonical NC space-time (constant $θ_{μν}$ parameters) and the second one incorporates dual to $\mathbb{H}$ quantum $θ_{μν}$-deformed Poincare-Hopf group algebra $\mathbb{G}$, which contains noncommutative space-time translations given by $Λ$-dependent $Θ_{μν}$ parameters ($% Λ$ $\equiv Λ_{μν}$ parametrize classical Lorentz group). The canonical $θ_{μν}$-deformed space-time algebra and its quantum phase space extension is covariant under the quantum Poincare transformations described by $\mathbb{G}$. We will also comment on the use of Hopf algebroids for the description of multiparticle structures in quantum phase spaces.
description: 16 pages, v2 extended and improved, with title modified
The MSSM Electroweak Phase Transition on the Lattice
Creators: name: Laine, M.
name: Rummukainen, K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the MSSM finite temperature electroweak phase transition with lattice Monte Carlo simulations, for a large Higgs mass (m_H ~ 95 GeV) and light stop masses (m_tR ~ 150...160 GeV). We employ a 3d effective field theory approach, where the degrees of freedom appearing in the action are the SU(2) and SU(3) gauge fields, the weakly interacting Higgs doublet, and the strongly interacting stop triplet. We determine the phase diagram, the critical temperatures, the scalar field expectation values, the latent heat, the interface tension and the correlation lengths at the phase transition points. Extrapolating the results to the infinite volume and continuum limits, we find that the transition is stronger than indicated by 2-loop perturbation theory, guaranteeing that the MSSM phase transition is strong enough for baryogenesis in this regime. We also study the possibility of a two-stage phase transition, in which the stop field gets an expectation value in an intermediate phase. We find that a two-stage transition exists non-perturbatively, as well, but for somewhat smaller stop masses than in perturbation theory. Finally, the latter stage of the two-stage transition is found to be extremely strong, and thus it might not be allowed in the cosmological environment.
description: 43 pages, 17 figures
Are the Dead Taking Over Facebook? A Big Data Approach to the Future of Death Online
Creators: name: Öhman, Carl
name: Watson, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: We project the future accumulation of profiles belonging to deceased Facebook users. Our analysis suggests that a minimum of 1.4 billion users will pass away before 2100 if Facebook ceases to attract new users as of 2018. If the network continues expanding at current rates, however, this number will exceed 4.9 billion. In both cases, a majority of the profiles will belong to non-Western users. In discussing our findings, we draw on the emerging scholarship on digital preservation and stress the challenges arising from curating the profiles of the deceased. We argue that an exclusively commercial approach to data preservation poses important ethical and political risks that demand urgent consideration. We call for a scalable, sustainable, and dignified curation model that incorporates the interests of multiple stakeholders.
description: 22 pages, 4 figures. Big Data & Society (2019)
Relaxing Atomic Parity Violation Constraints on New Physics
Creators: name: Barger, V.
name: Cheung, K.
name: Roy, D. P.
name: Zeppenfeld, D.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The weak charge $Q_W$ measured in atomic parity violation experiments can receive compensating contributions from more than one new physics source. We show explicitly that the $ΔQ_W$ contribution from the exchange of an extra Z-boson can cancel that from the $s$-channel scalar top or scalar charm exchange in R-parity violating SUSY models proposed to explain the HERA high-$Q^2$ anomaly.
description: Revtex, 8 pages, no figures. Additions and corrections to references
Additional file 4: of Overcoming acquired resistance to HSP90 inhibition by targeting JAK-STAT signalling in triple-negative breast cancer
Creators: name: Nuramalina Mumin
name: Drobnitzky, Neele
name: Patel, Agata
name: Lourenco, Luiza
name: Cahill, Fiona
name: Yanyan Jiang
name: Kong, Anthony
name: Ryan, Anderson
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Table S3. Compounds that were differentially cytotoxic to HSP90i-resistant clone CR3 in the presence of ganetespib. Cell viability was assessed after 72 h exposure to a 326-compound small molecule library (1 μM each compound. SELLECK) in the presences or absence of ganetespib (10 nM). Z-scores ≤ − 2 identified compounds that were selectively cytotoxic CR3 cells in the absence of ganetespib, Z-scores ≥2 identified compounds that were selectively cytotoxic CR3 cells in the presence of ganetespib. (DOCX 23 kb)
title: 辉腾阿尔善-C幅地质图（M45E024019）
title: 新疆阿勒泰市乌齐里克他乌一带1∶50 000马米拉喀拉萨孜-C、乌希里克、辉腾阿尔善-C区域地质矿产调查报告
titleType: Other
Creators: name: 李;何;田;曾;张;摆;赵;卢;赵;蔺;霍;王;赖;章, 念凤;峻岭;红彪;祥武;鹏伟;翔;军;乐;锋;如喜;东亮;建军;月荣;享云
Publisher: name: 全国地质资料馆
Year: 2018
Subjects: subject: 喀纳斯群;侵入岩;构造格架;金矿化;铜矿化

description: “新疆阿勒泰市乌齐里克他乌一带（M45E024017、M45E024018、M45E024019）1∶5万区域地质矿产调查”是中国地质调查局下达的项目（基[2013]01-021-007、基[2014]01-023-003、基[2015]02-14-01-001），承担单位为中国人民武装警察部队黄金第八支队，项目编码为12120113071900，工作起止时间2013年-2015年，区域地质矿产调查面积1035平方千米，所属计划项目为“西昆仑与青东基础地质调查项目”。三年区域地质调查工作，对测区进行了1∶2.5万标准分幅遥感解译，对测区构造、岩石、地层和蚀变带等各类地质体都进行了准确解译和勾绘，提取了10多处矿化蚀变信息，这些成果对地质填图和找矿工作大有益处；综合前人成果，建立了测区地层格架系统，将测区地层划分为2个群级地层单位、1个岩组、2个组级地层单位和3个段级地层单位，特别是将该处争议较大的中深变质岩归属做以合理的划分。对震旦-寒武统喀纳斯群进行了精细划分，分析其形成时代和环境。对区内的火山岩划分了火山活动旋回和喷发韵律，开展了岩石学、岩石地球化学和火山岩相研究，探讨了其形成的构造环境。对侵入岩进行详细解体，建立了不同时代的侵入岩序列；对各序列侵入岩开展了岩石学及岩石地球化学分析研究，探讨了其成因及形成环境；新获得15件锆石U-Pb同位素年龄，厘定为中晚奥陶世、志留纪、早泥盆世、中泥盆世、晚三叠世五组，为研究该区侵入岩的时空演化提供了重要的年代学依据。对测区变质岩的岩石类型、时空分布、变质作用进行了总结，划分出2个变质相和4个变质带，对变质作用温压条件进行了讨论，为建立区内构造－热事件序列提供了资料。对区内褶皱、断裂、韧性剪切带的规模、性质、产状及运动学特征进行了调查研究，划分了构造单元和构造层，建立了区内构造格架，探讨了地质构造发展史。圈定化探单元素异常297处、综合异常32处，圈定局部磁异常11个，新发现金、铜等矿化点11处，划分成矿远景区7处，其中Ⅱ级成矿远景区4个，Ⅲ级成矿远景区3个，在此基础上划分出B类找矿靶区1个，C类找矿靶区1个，为下步找矿指明了方向。编制了全区12幅1∶2.5万图幅野外总图、实际材料图库和3幅1∶5万图幅编稿原图和成果数据库，数据质量较好。
ESM Table 4 Summary statistics from posterior distributions from Molar biomechanical function in South African hominins Australopithecus africanus and Paranthropus robustus
Creators: name: Berthaume, Michael A.
name: Kupczik, Kornelius
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Summary statistics from the Bayesian statistical analyses
Substrate-adsorbate coupling in CO-adsorbed copper
Creators: name: Lewis, Steven P.
name: Rappe, Andrew M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The vibrational properties of carbon monoxide adsorbed to the copper (100) surface are explored within density functional theory. Atoms of the substrate and adsorbate are treated on an equal footing in order to examine the effect of substrate--adsorbate coupling. This coupling is found to have a significant effect on the vibrational modes, particularly the in-plane frustrated translation, which mixes strongly with substrate phonons and broadens into a resonance. The predicted lifetime due to this harmonic decay mechanism is in excellent quantitative agreement with experiment.
description: LaTeX, 4 pages, 2 figures
Approved Proposals of the 1st FAIRagro Use Case Call 2024
Creators: name: Sennhenn, Anne
name: Hoffmann, Carsten
name: Srivastava, Amit Kumar
name: Heuermann, Marc Christian
name: Neumann, Kerstin
name: Fluck, Juliane
name: Odening, Martin
name: Kautz, Timo
name: Filler, Günther
name: Gerowitt, Bärbel
name: Sradnick, André
Publisher: name: Zenodo
Year: 2025
Subjects: NFDI
FAIRagro
Research Data Management
M1.7
M1.8
M1.9
M1.10
M1.11
M1.12

description: The six approved Use Case applications from the 1st FAIRagro Use Case Call 2024, including working plans, running times, connections to the FAIRagro Task Areas, measures and deliverables as extension to the FAIRagro Proposal.
Magneto-acoustic rotation of transverse waves in 3He-B
Creators: name: Sauls, J. A.
name: Lee, Y.
name: Haard, T. M.
name: Halperin, W. P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In superfluid 3He-B the off-resonant coupling of the J=2-, M=+/- 1 order parameter collective modes to transverse current excitations stabilizes propagating transverse waves with low damping for frequencies above that of the J=2- modes. Right- (RCP) and left circularly polarized (LCP) transverse modes are degenerate in zero field; however, a magnetic field with H || q lifts this degeneracy giving rise to the acoustic analog of circular birefringence and an acoustic Faraday effect for linearly polarized transverse sound waves. We present theoretical results for the temperature, pressure and field dependence of the Faraday rotation angle, and compare the theory with recent measurements. The analysis provides a direct measurement of the Lande' g-factor for the J=2- modes, and new information on the magnitude of f-wave pairing correlations in 3He-B.
description: Submitted to Physica B (Proc. LT22), 2 pages with 1 figure
Zygocanna buitendijki : Stiasny 1928
Creators: name: Buecher, Emmanuelle
name: Goy, Jacqueline
name: J, Mark
name: Gibbons
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Aequoreidae
Zygocanna
Zygocanna buitendijki

description: Zygocanna buitendijki Stiasny, 1928
 Zygocanna buitendijki: Stiasny 1928: 218–224, figs 5, 6; Kramp 1961: 210; 1968: 101, fig. 275.
 Description: Six immature specimens from single station. Umbrella as flattened hemisphere, much broader than tall, without apical projection; 1.9 mm in diameter. Exumbrella surface with numerous, relatively indistinct radiating ribs; without gelatinous papillae. Mesoglea thickened centrally, thinning to margin. Velum narrow. Peripheral canal and 16 radial canals present, latter narrow, with smooth margin; much branched; without centripetal canals. With 16 tentacles connected to peripheral canal, arising from small heart-shaped bulbs on umbrella margin. Tentacles of similar size, long, hollow, unbranched, filiform. Without small rudimentary bulbs or secondary tentacles.All marginal bulbs without either lateral extensions or keel, excretory papillae present. Lateral and marginal cirri absent. Manubrium up to 1/2 umbrella width, broad and flat, not extending to velum, not connected to radial canals by mesenteries. Mouth simple, circular, without lips; gastric peduncle absent. Statocysts closed, numerous. Without ocelli. When mature, gonads extending along distal portion of radial canals, but not reaching peripheral canal.
Material examined: H5051.
 Comments: Although species of Zygocanna appear to be largely confined to the Indo-Pacific, only one other has been recorded from the region – Z. vagans Bigelow, 1912, off the Cape of Good Hope (Kramp 1957, 1965). Species can be differentiated by the number of ribs or papillar rows on the exumbrella surface, the number of radial canals and their degree of branching. The present material lacked marginal bulbs (as Bouillon 1984: 25), but is clearly recognisable by the small number of marginal tentacles and large number of radial canals.
Distribution: Indo-Malayan area. This is the first record from the west Indian Ocean, though it has been recorded along the coast of India (see records in Kramp 1961). Neritic.
description: Published as part of Buecher, Emmanuelle, Goy, Jacqueline, J, Mark & Gibbons, 2005, Hydromedusae of the Agulhas Current, pp. 27-69 in African Invertebrates 46 on page 53, DOI: 10.5281/zenodo.7909936
Testing the Impact of Satellite Anisotropy on Large and Small Scale Intrinsic Alignments using Hydrodynamical Simulations
Creators: name: Samuroff, S.
name: Mandelbaum, R.
name: Di Matteo, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy intrinsic alignments (IAs) have long been recognised as a significant contaminant to weak lensing-based cosmological inference. In this paper we seek to quantify the impact of a common modelling assumption in analytic descriptions of intrinsic alignments: that of spherically symmetric dark matter halos. Understanding such effects is important as the current generation of intrinsic alignment models are known to be limited, particularly on small scales, and building an accurate theoretical description will be essential for fully exploiting the information in future lensing data. Our analysis is based on a catalogue of 113,560 galaxies between $z=0.06-1.00$ from MassiveBlack-II, a hydrodynamical simulation of box length $100 h^{-1}$ Mpc. We find satellite anisotropy contributes at the level of $\geq 30-40\%$ to the small scale alignment correlation functions. At separations larger than $1 h^{-1}$ Mpc the impact is roughly scale-independent, inducing a shift in the amplitude of the IA power spectra of $\sim20\%$. These conclusions are consistent across the redshift range and between the MassiveBlack-II and Illustris simulations. The cosmological implications of these results are tested using a simulated likelihood analysis. Synthetic cosmic shear data is constructed with the expected characteristics (depth, area and number density) of a future LSST-like survey. Our results suggest that modelling alignments using a halo model based upon spherical symmetry could potentially induce cosmological parameter biases at the $\sim 1.5σ$ level for $S_8$ and $w$.
description: 20 pages, 13 figures; accepted by MNRAS
The hMSSM approach for Higgs self-couplings revisited
Creators: name: Liebler, Stefan
name: Mühlleitner, Margarete
name: Spira, Michael
name: Stadelmaier, Maximilian
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare the decay of the heavy Higgs boson into two SM-like Higgs bosons, $H\to hh$, calculated in a Feynman-diagrammatic approach at the one-loop level based on the one hand on the full effective potential involving the top quark and stops in the Minimal Supersymmetric Standard Model (MSSM) accompanied by the matched Two-Higgs-Doublet Model (2HDM) as its low-energy limit and on the other hand on the hMSSM approximation. We identify missing contributions due to the top quark in the Higgs self-couplings of the hMSSM, that - when taken into account - lead to a good agreement between the hMSSM and a full MSSM calculation, at least in the limit of the Higgsino mass parameter $μ$ being small compared to the stop spectrum. We also thoroughly analyze momentum-dependent and kinetic corrections intrinsic to the Feynman-diagrammatic approach and the matching to the effective Lagrangian, respectively, for both our calculation in the MSSM and the hMSSM and for the latter suggest to include additional corrections from the top quark, which are independent of the unknown supersymmetric spectrum.
description: 29 pages, 7 figures; v2: figure added, journal version
Report on re3data COREF / CoreTrustSeal Workshop on Quality Management at Research Data Repositories
Creators: name: Kindling, Maxi
name: Strecker, Dorothea
name: Ferguson, Lea Maria
name: L’Hours, Hervé
name: Magder, Cristina
name: Schabinger, Rouven
name: Štuhec, Seta
name: Vierkant, Paul
name: Weisweiler, Nina
Publisher: name: Informationspraxis
Year: 2023

description: On October 5, 2022, the “Workshop on Quality Management at Research Data Repositories” – jointly organized by re3data COREF and CoreTrustSeal – was held online with more than 70 participants attending. The objective of the workshop was to discuss activities research data repositories perform to assure, assess, and improve data quality. The workshop started with input from the workshop organizers: re3data COREF presented results of a recent suvey on quality management at repositories, and CoreTrustSeal shared the perspective of a certification organization. Then, repositories from different disciplinary backgrounds presented their approaches to quality management. The workshop concluded with a breakout session and a plenary discussion on options for making information on data quality assurance more visible.
description: Informationspraxis, Bd. 8 Nr. 1 (2022)
Exceptional Chern-Simons-Matter Dualities
Creators: name: Cordova, Clay
name: Hsin, Po-Shen
name: Ohmori, Kantaro
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use conformal embeddings involving exceptional affine Kac-Moody algebras to derive new dualities of three-dimensional topological field theories. These generalize the familiar level-rank duality of Chern-Simons theories based on classical gauge groups to the setting of exceptional gauge groups. For instance, one duality sequence we discuss is $(E_{N})_{1}\leftrightarrow SU(9-N)_{-1}$. Others such as $SO(3)_{8}\leftrightarrow PSU(3)_{-6},$ are dualities among theories with classical gauge groups that arise due to their embedding into an exceptional chiral algebra. We apply these equivalences between topological field theories to conjecture new boson-boson Chern-Simons matter dualities. We also use them to determine candidate phase diagrams of time-reversal invariant $G_{2}$ gauge theory coupled to either an adjoint fermion, or two fundamental fermions.
description: 27 pages, 3 figures
Nonuniversal scaling behavior of Barkhausen noise
Creators: name: Tadic, Bosiljka
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We simulate Barkhausen avalanches on fractal clusters in a two-dimensional diluted Ising ferromagnet with an effective Gaussian random field. We vary the concentration of defect sites $c$ and find a scaling region for moderate disorder, where the distribution of avalanche sizes has the form $D(s,c,L) = s^{-(1+τ(c))}{\cal{D}}(sL^{-D_s(c)})$. The exponents $τ(c)$ for size and $α(c)$ for length distribution, and the fractal dimension of avalanches $D_s(c)$ satisfy the scaling relation $D_s(c)τ(c) =α(c)$. For fixed disorder the exponents vary with driving rate in agreement with experiments on amorphous Si-Fe alloys.
description: 5 pages, Latex, 4 PostScript figures included
Additional file 2: of Circular RNA F-circSR derived from SLC34A2-ROS1 fusion gene promotes cell migration in non-small cell lung cancer
Creators: name: Wu, Ke
name: Liao, Xun
name: Gong, Youling
name: He, Juan
name: Zhou, Jian-Kang
name: Tan, Shuangyan
name: Pu, Wenchen
name: Huang, Canhua
name: Wei, Yu-Quan
name: Peng, Yong
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Virology

description: Figure S1. Absolute quantification of F-circSRs in HCC78 cells using qPCR. Figure S2. Characterization of cellular function of F-circSR in lung cancer cells. Figure S3. Validation of cellular function of F-circSR using pLaccase2 circRNA expression system. Figure S4. Predicted miRNA biding sites in F-circSRs. (DOCX 2870 kb)
ESM Figure 1 posterior distributions from Molar biomechanical function in South African hominins Australopithecus africanus and Paranthropus robustus
Creators: name: Berthaume, Michael A.
name: Kupczik, Kornelius
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Posterior distribution from Bayesian models
title: 谢通门幅地质图（H-45-23）
title: 1∶200 000谢通门幅、南木林幅区域地质调查报告
titleType: Other
Creators: name: 蒋;周;李;苟;柴;谢;陈, 光武;清山;维均;金;升科;尧武;国荣
Publisher: name: 全国地质资料馆
Year: 2018
Subjects: subject: 冈底斯岩浆弧;花岗岩;火山岩;次级构造带;构造演化

description: 调查区位于冈底斯岩浆弧的中段，是重要的贵金属、多金属成矿带。本报告运用新理论、新观点、新办法对调查区的重要地质问题进行反复调研，获得了丰富的地质资料。运用多重地层划分和非史密斯地层学理论，进行了多重地层划分，建立了测区地层系统；采用单元-超单元填图新方法，建立了测区花岗岩类岩石谱系单位，并据岩石学、岩石化学、地球化学、就位机制、成因类型等基本特征的分析，测区侵入岩总体属冈底斯火山岩浆弧的中段；测区火山岩采用双重填图方法填图，划分了火山岩相、火山韵律和旋回；运用现代变质地质学新理论、新方法，对测区的变质岩及变质作用进行了综合归纳和论述；根据沉积建造、岩浆建造、变质建造等不同，从北向南划分为三个次级构造单元，即腩阿-念青唐古拉构造带、南木切-邬郁构造带和谢通门-泽南乡构造带；根据构造-建造特征、变形变质特征和构造期次，将测区构造演化历程划分为四个阶段：（1）陆壳结晶基底形成阶段；（2）古特提斯边缘海发展阶段；（3）新特提斯陆缘发展阶段；（4）陆内造山阶段。
Additional file 3: of Overcoming acquired resistance to HSP90 inhibition by targeting JAK-STAT signalling in triple-negative breast cancer
Creators: name: Nuramalina Mumin
name: Drobnitzky, Neele
name: Patel, Agata
name: Lourenco, Luiza
name: Cahill, Fiona
name: Yanyan Jiang
name: Kong, Anthony
name: Ryan, Anderson
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Hematology
subject: Plant Biology

description: Table S2. Compounds that were selectively cytotoxic to parental Hs578T cells compared with HSP90i-resistant clone CR3. Cell viability was assessed after 72 h exposure to a 326-compound small molecule library (1 μM each compound. SELLECK). Z-scores ≤ − 2 identified compounds that were selectively cytotoxic to parental Hs578T cells. (DOCX 13 kb)
Data quality assurance at research data repositories: Survey results and discussion
Creators: name: Kindling, Maxi
name: Strecker, Dorothea
Publisher: name: Zenodo
Year: 2024
Subjects: research data
research data quality
research data quality assurance
research data repository
survey

description: This presentation was held at the Session Data Review in Data Repositories to Facilitate Open Science at the RDA Virtual Plenary 22.

It outlines results from a 2021 survey on data quality assurance at research data repositories, with a focus on the types of quality assurance performed, criteria for formal assessment and review of data, responsibilities, rejection rates, and the involvement of repository users in data evaluation.
Tractions and stress fibers control cell shape and rearrangements in collective cell migration
Creators: name: Saraswathibhatla, Aashrith
name: Notbohm, Jacob
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Key to collective cell migration is the ability of cells to rearrange their position with respect to their neighbors. Recent theory and experiments demonstrated that cellular rearrangements are facilitated by cell shape, with cells having more elongated shapes and greater perimeters more easily sliding past their neighbors within the cell layer. Though it is thought that cell perimeter is controlled primarily by cortical tension and adhesion at each cell's periphery, experimental testing of this hypothesis has produced conflicting results. Here we studied collective cell migration in an epithelial monolayer by measuring forces, cell perimeters, and motion, and found all three to decrease with either increased cell density or inhibition of cell contraction. In contrast to previous understanding, the data suggest that cell shape and rearrangements are controlled not by cortical tension or adhesion at the cell periphery but rather by the stress fibers that produce tractions at the cell-substrate interface. This finding is confirmed by an experiment showing that increasing tractions reverses the effect of density on cell shape and rearrangements. Our study therefore reduces the focus on the cell periphery by establishing cell-substrate traction as a major physical factor controlling cell shape and motion in collective cell migration.
description: 39 pages, 6 figures
A Critical Study of B Decays to Light Pseudoscalar
Creators: name: Deshpande, N. G.
name: Dutta, B.
name: Oh, Sechul
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the large branching ratios observed for the process $B\toη^{\prime}K$, we examine critically all the ingredients that go into estimates of B decays into two light pseudoscalars. Within factorization approximation, we examine several assumptions on the input parameters that could have a strong bearing on the predictions. Among these are (i) the QCD scale $μ$ (ii) value of the form factors (iii) value of the light quark masses, and in particular $m_s$ (iv) the value $ξ=1/N_c$, (v) charm content of $η^{\prime}$. It is possible to account for all the data without invoking new physics, though future experiments will provide tighter constraints on the parameter space. We fin that CP violating asymmetries are in the observable range for some modes.
description: 29 pages(Latex), 17 figures, a few changes have been made, version to appear in Phys.Rev.D
Additional file 13 of Ten-gene signature reveals the significance of clinical prognosis and immuno-correlation of osteosarcoma and study on novel skeleton inhibitors regarding MMP9
Creators: name: Li, Weihang
name: Ding, Ziyi
name: Wang, Dong
name: Li, Chengfei
name: Pan, Yikai
name: Zhao, Yingjing
name: Zhao, Hongzhe
name: Lu, Tianxing
name: Xu, Rui
name: Zhang, Shilei
name: Yuan, Bin
name: Zhao, Yunlong
name: Yin, Yanjiang
name: Gao, Yuan
name: Li, Jing
name: Yan, Ming
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: Additional file 13: Table S5. CDOCKER interaction energy of compounds with Matrix metalloproteinase-9 (MMP-9).
ESM Table 5 Statistical models from Molar biomechanical function in South African hominins Australopithecus africanus and Paranthropus robustus
Creators: name: Berthaume, Michael A.
name: Kupczik, Kornelius
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biological Engineering
subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Statistical models
Astrophysical Constraints on Primordial Black Hole Formation from Collapsing Cosmic Strings
Creators: name: Wichoski, U. F.
name: MacGibbon, Jane H.
name: Brandenberger, Robert H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Primordial Black Holes (PBH) may have formed from the collapse of cosmic string loops. The spectral shape of the PBH mass spectrum can be determined by the scaling argument for string networks. Limits on the spectral amplitude derived from extragalactic gamma-ray and galactic gamma-ray and cosmic ray flux observations as well as constraints from the possible formation of stable black holes remnants are reanalyzed. The new constraints are remarkably close to those derived from the normalization of the cosmic string model to the cosmic microwave background anisotropies.
description: 4 pages, no figures, LaTeX (uses prcrc.sty). To appear in the Proceedings of the Third UCLA Dark Matter Symposium and Primordial Black Hole Workshop (Marina del Rey, CA, February 1998)
Ferromagnetic resonance and magnetic precessions in $φ_0$ junction
Creators: name: Shukrinov, Yu. M.
name: Rahmonov, I. R.
name: Sengupta, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Josephson $φ_0$ junctions with the current-phase relation $I = I_c \sin (φ-φ_0)$, where the phase shift $φ_0$ is proportional to the magnetic moment perpendicular to the gradient of the asymmetric spin-orbit potential, demonstrate a number of unique features important for superconducting spintronics and modern informational technologies. Here we show that a current sweep along IV-characteristic of the $φ_0$ junction may lead to regular magnetization dynamics with a series of specific phase trajectories. The origin of these trajectories is related to a direct coupling between the magnetic moment and the Josephson oscillations in these junctions, and ferromagnetic resonance when Josephson frequency coincides with the ferromagnetic one. We demonstrate that an external electromagnetic field can control the dynamics of magnetic moment within a current interval corresponding to a Shapiro step and produce topological transformation of specific precession trajectories. We demonstrate the appearance of the DC component of superconducting current and clarify its role in the transformation of IV-characteristics in the resonance region. Good agreement between numerical and analytical results has been found in the ferromagnetic resonance region. The presented results might be used for developing novel resonance methods of determination of the spin-orbit coupling parameter in the non-centrosymmetric materials. We discuss experiments which can test our results.
Additional file 2: of Overcoming acquired resistance to HSP90 inhibition by targeting JAK-STAT signalling in triple-negative breast cancer
Creators: name: Nuramalina Mumin
name: Drobnitzky, Neele
name: Patel, Agata
name: Lourenco, Luiza
name: Cahill, Fiona
name: Yanyan Jiang
name: Kong, Anthony
name: Ryan, Anderson
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Figure S1. Positive correlation of pSTAT3 expression with HSP90i sensitivity. A scatter plot displaying the relationship between ganetespib sensitivity (IC50) and pSTAT3 expression in the panel of TNBC cell lines. (DOCX 25 kb)
Blackfordia virginica : Mayer 1910
Creators: name: Buecher, Emmanuelle
name: Goy, Jacqueline
name: J, Mark
name: Gibbons
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Blackfordiidae
Blackfordia
Blackfordia virginica

description: Blackfordia virginica Mayer, 1910
 Blackfordia virginica: Mayer 1910: 277, pl. 36, figs 3–5; Kramp 1961: 181; 1968: 85, fig. 228.
 Description: Single specimen. Domed umbrella, slightly taller than broad, without apical projection; 4 mm in diameter. Exumbrella surface smooth. Mesoglea thick, thinning to margin. Velum narrow. Peripheral canal and four radial canals present, latter narrow, with smooth margin and unbranched; without centripetal canals. With approx. 100 tentacles connected to peripheral canal, arising from small bulbs on umbrella margin. Endoderm of tentacles extend inwards to mesoglea at margin. Tentacles of similar size, long, hollow, unbranched, filiform. With no atentaculate marginal bulbs. All marginal bulbs without keel, and with neither excretory pores nor excretory papillae. Lateral and marginal cirri absent. Manubrium narrow, short, not extending to velum, not connected to radial canals by mesenteries. Mouth simple, circular, with four slightly recurved, crenulated lips; gastric peduncle absent. Statocysts closed, one between each marginal tentacle. Without ocelli. Gonads linear, sinuous, completely surround radial canals, rarely extending more than half radial canal length.
Material examined: H5052.
 Comments: Three named species are recognised by Bouillon and Boero (2000 b). They differ in the distribution of their gonads, and in the number and structure of their statocysts. The other two species have not, to date, been recovered from the Indian Ocean.
Distribution: Widespread in temperate and subtropical waters, including coastal Brazil (Paranaguá 1963), Mediterranean Sea and Black Sea. A known invasive species into North America (Mills & Rees 2000) and India (Carlton 1985). This is the first record from the west Indian Ocean. Neritic.
description: Published as part of Buecher, Emmanuelle, Goy, Jacqueline, J, Mark & Gibbons, 2005, Hydromedusae of the Agulhas Current, pp. 27-69 in African Invertebrates 46 on page 54, DOI: 10.5281/zenodo.7909936
Competing Quantum Orderings in Cuprate Superconductors: A Minimal Model
Creators: name: Martin, Ivar
name: Ortiz, Gerardo
name: Balatsky, A. V.
name: Bishop, A. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a minimal model for cuprate superconductors. At the unrestricted mean-field level, the model produces homogeneous superconductivity at large doping, striped superconductivity in the underdoped regime and various antiferromagnetic phases at low doping and for high temperatures. On the underdoped side, the superconductor is intrinsically inhomogeneous and global phase coherence is achieved through Josephson-like coupling of the superconducting stripes. The model is applied to calculate experimentally measurable ARPES spectra.
description: 5 pages, 4 eps included figures
Bogomol'nyi Limit For Magnetic Vortices In Rotating Superconductor
Creators: name: Carter, Brandon
name: Langlois, David
name: Prix, Reinhard
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work is the sequel of a previous investigation of stationary and cylindrically symmetric vortex configurations for simple models representing an incompressible non-relativistic superconductor in a rigidly rotating background. In the present paper, we carry out our analysis with a generalized Ginzburg-Landau description of the superconductor, which provides a prescription for the radial profile of the normal density within the vortex. Within this framework, it is shown that the Bogomol'nyi limit condition marking the boundary between type I and type II behavior is unaffected by the rotation of the background.
description: 7 pages, uses RevTeX, submitted to Phys.Rev.B
title: AN, Registre des écrous du Châtelet, Y5266, f. p1000961
Creators: name: Claustre, Julie
name: Nationales, Archives
name: Archives Nationales
name: Claustre, Julie
name: ArchivesNationales/J.CLAUSTRE/H.REGAZZI/2020
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: Châtelet
subject: registre

description: Registre des écrous du Châtelet, Archives Nationales, Y5266. Numérisation en mode image.
description: Bibliographic citation: Archives Nationales, Registre des écrous du Châtelet, Y5266, f. p1000961
Ab initio molecular dynamics study of the desorption of D_2 from Si(100)
Creators: name: Gross, Axel
name: Bockstedte, Michel
name: Scheffler, Matthias
Publisher: name: arXiv
Year: 1996
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ab initio molecular dynamics calculations of deuterium desorbing from Si(100) have been performed in order to monitor the energy redistribution among the various D$_2$ and silicon degrees of freedom during the desorption process. The calculations show that a considerable part of the potential energy at the transition state to desorption is transferred to the silicon lattice. The deuterium molecules leave the surface vibrationally hot and rotationally cold, in agreement with thermal desorption experiments; the mean kinetic energy, however, is larger than found in a laser-induced desorption experiment. We discuss possible reasons for this discrepancy.
description: 5 pages, 3 figures, subm. to Phys. Rev. Lett
Eutima curva : Browne 1905
Creators: name: Buecher, Emmanuelle
name: Goy, Jacqueline
name: J, Mark
name: Gibbons
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Hydrozoa
Leptothecata
Eirenidae
Eutima
Eutima curva

description: Eutima curva Browne, 1905
 Eutima curva: Browne 1905: 138, pl. 3, figs 1–3, Kramp, 1961: 195; 1968: 96, fig. 259.
 Description: Single slightly damaged specimen. Dome-shaped umbrella, slightly broader than tall, without apical projection; 8 mm in diameter. Exumbrella surface smooth. Mesoglea thick. Velum narrow. Peripheral canal and four radial canals present; radial canals narrow, with smooth margin, unbranched, extending from umbrella margin across underside of bell and along gastric peduncle to manubrium; without centripetal canals. With four perradial tentacles connected to peripheral canal, arising from slightly swollen (especially abaxially), linear bulbs on umbrella margin. Tentacles long, hollow, unbranched, filiform. With approx. 140 small, atentaculate marginal swellings or warts. All marginal bulbs and warts without keel, and with neither excretory papillae nor excretory pores; lateral cirri present. Manubrium short, flask-shaped, not connected to radial canals by mesenteries. Mouth simple, quadrate, with four crenulated lips. Gastric peduncle pronounced, as long as umbrella width, pyramid-shaped proximally, prismatic distally. Statocysts closed, eight in number (two per quadrant). Without ocelli. With four gonads on distal portion of gastric peduncle.
Material examined: H5057.
 Comments: see E.? commensalis.
Distribution: Scattered in tropical and subtropical waters of Indo-West Pacific. This is the first record from the south-west Indian Ocean, though it has been recorded off Sri Lanka (Browne 1905). Neritic.
description: Published as part of Buecher, Emmanuelle, Goy, Jacqueline, J, Mark & Gibbons, 2005, Hydromedusae of the Agulhas Current, pp. 27-69 in African Invertebrates 46 on pages 56-57, DOI: 10.5281/zenodo.7909936
Density-matrix functional theory of the Hubbard model: An exact numerical study
Creators: name: Lopez-Sandoval, R.
name: Pastor, G. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A density functional theory for many-body lattice models is considered in which the single-particle density matrix is the basic variable. Eigenvalue equations are derived for solving Levy's constrained search of the interaction energy functional W, which is expressed as the sum of Hartree-Fock energy and the correlation energy E_C. Exact results are obtained for E_C of the Hubbard model on various periodic lattices. The functional dependence of E_C is analyzed by varying the number of sites, band filling and lattice structure. The infinite one-dimensional chain and one-, two-, or three-dimensional finite clusters with periodic boundary conditions are considered. The properties of E_C are discussed in the limits of weak and strong electronic correlations, as well as in the crossover region. Using an appropriate scaling we observe a pseudo-universal behavior which suggests that the correlation energy of extended systems could be obtained quite accurately from finite cluster calculations. Finally, the behavior of E_C for repulsive (U>0) and attractive (U<0) interactions are contrasted.
description: Phys. Rev. B (1999), in press
Separation of Variables in BC-type Gaudin Magnet
Creators: name: Hikami, Kazuhiro
Publisher: name: arXiv
Year: 1995
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The integrable system is introduced based on the Poisson $ rs $-matrix structure. This is a generalization of the Gaudin magnet, and in SL(2) case isomorphic to the generalized Neumann model. The separation of variables is discussed for both classical and quantum case.
description: 11 pages, macros from ftp.ioppublishing.com