cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Zur Diasporenausbreitung von Cymbalaria muralis (Scrophulariaceae)
Creators: name: Junghans, Thomas
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2004
Subjects: subject: Ausbreitung
subject: Autochorie
subject: Cymbalaria
subject: Diaspore
subject: Sekundärstandorte
subject: 580

description: Dispersal in Cymbalaria muralis can be interpreted as a two-stage process first of which is the well-known blastochorous mechanism leading to diaspore deposition in the vicinity of the parent plant depending on pedicel growth, availability and number of safe sites and competence between capsules, seeds and seedlings etc. The resulting small number of safe-site dispersed diaspores and the limited distances from the parent plants compensates thereby for the great seed losses of capsules that failed to reach safe sites. But observations in the field indicate that such diaspores are not only subject to highly incidental and unusual dispersal events. A great variety of factors like the asynchrony of dehiscence, hygroscopic movements of capsule teeth, the formation of seed clusters, different patterns of seed germination due to seed size and surface structure including germination of the basifix seed, the use of seeds and capsules as diaspores etc. provide complex functional interactions enabling the species to take advantage of a broad range of biotic and abiotic dispersal vectors influencing dispersal patterns in space and time. With partitioning the reproductive effort between those diaspores that failed to reach a safe site (enabling a potential long-range seed dispersal to colonize new habitats) and those that replace existing individuals allowing only a limited population growth Cymbalaria muralis maximizes dispersal economy by combining the benefits from both strategies.
The motion of buoyant point vortices
Creators: name: Carpenter, Jeff
name: Guha, Anirban
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A general formulation is presented for studying the motion of buoyant vortices in a homogeneous ambient fluid. It extends the well-known Hamiltonian framework for interacting homogeneous point vortices to include buoyancy effects acting on the vortices. This is then used to systematically examine the buoyant 1-, 2-, and 3-vortex problems. In doing so we find that 2 buoyant vortices may either evolve as a pair in bounded circular orbits, or as two independent unbounded vortices that drift apart, and a criteria is found to distinguish these cases. Special attention is given to the buoyant vortex couple, consisting of two vortices of equal and opposite circulation, and equal buoyancy anomaly. We show that a theoretical maximum height is generally possible for the rise (or fall) of such couples against buoyancy forces. Finally, the possibility and onset of chaotic motions in the buoyant 3-vortex problem is addressed. In contrast to the homogeneous 3-vortex problem, the buoyant vortex system shows evidence that chaos is present. We also demonstrate the chaotic advection of tracer parcels arising from the flow field induced by just 2 buoyant vortices.
Drinfeld twist for two-parametric deformation of gl(2) and sl(1/2)
Creators: name: Aizawa, N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37

description: Drinfeld twist is applied to the Lie algebra gl(2) so that a two-parametric deformation of it is obtained, which is identical to the Jordanian deformation of the gl(2) obtained by Aneva et al. The same twist element is applied to deform the Lie superalgebra sl(1/2), since the gl(2) is embedded into the sl(1/2). By making use of the FRT-formalism, we construct a deformation of the Lie supergroup $ SL(1/2). $
description: 8pages, LaTeX2e, no figures, presented at the 7th Colloquium``Quantum Groups and Integrable Systems'', Prague, 18--20 June 1998
Long uninterrupted photometric observations of the Wolf-Rayet star EZ CMa by the Toronto {\em{BRITE}} satellite reveal a very fast apsidal motion
Creators: name: Schmutz, Werner
name: Koenigsberger, Gloria
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The variability of the Wolf-Rayet star EZ CMa has been documented for close to half a century, and a clear periodicity of $\sim$3.7 days is established. However, all attempts to prove that it is a binary have failed because the photometric, spectroscopic, and polarimetric variations are not coherent over more than a few orbital cycles. Aims. In this letter we show that the lack of coherence in the variability can be explained with a very rapid apsidal motion in a binary orbit.} Methods. We measured the times of minima in a recently published exceptionally long photometric light curve obtained by the Toronto {\emph{BRITE}} satellite. The apsidal motion and the system eccentricity are determined from the length of the time intervals between these minima, which alternate in their duration, following a pattern that is clearly associated with apsidal motion. These minima are superposed on brightness enhancements of the emission from a shock zone, which occur at about the times of periastron phases. Results. We determine the orbital periodicity, $P_{a}=3.63\, $d, and the period of the apsidal motion, $U\simeq 100\, $d, which together yield an average sidereal period of $P_{s}=3.77\,$d. The eccentricity is found to be close to 0.1. The rate of periapsis retreat changes significantly over the period of observation and is determined to be $-16^\circ\,\mathrm{P}^{-1}_a$ at the beginning of the observing period and $-10^\circ\,\mathrm{P}^{-1}_a$ at the end. Conclusions. We demonstrate that by introducing a fast apsidal motion, the basic photometric variability is very well explained. The binary nature of EZ CMa is now established. This might imply that other apparently single Wolf-Rayet stars that emit hard X-rays, similar to EZ CMa, are also binaries.
description: A&A Letter in press, 5 pages, 3 figures
Additional file 2 of Gene coexpression network approach to develop an immune prognostic model for pancreatic adenocarcinoma
Creators: name: Gu, Xiaoqiang
name: Zhang, Qiqi
name: Wu, Xueying
name: Fan, Yue
name: Qian, Jianxin
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2: Table S1. Hub genes in the pink module.
Revealing the Focused Companion Wind in Cygnus X-1 with Chandra
Creators: name: Miller, J. M.
name: Wojdowski, P.
name: Schulz, N. S.
name: Marshall, H. L.
name: Fabian, A. C.
name: Remillard, R. A.
name: Wijnands, R.
name: Lewin, W. H. G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analyzed a Chandra HETGS spectrum of the Galactic black hole Cygnus X-1, obtained at a source flux which is approximately twice that commonly observed in its persistent low-intensity, spectrally-hard state. We find a myriad of absorption lines in the spectrum, including Ly-alpha lines and helium-like resonance lines from Ne, Na, Mg, and Si. We calculate a flux-weighted mean red-shift of ~100 km/s and a flux-weighted mean velocity width of 800 km/s (FWHM) for lines from these elements. We also detect a number of transitions from Fe XVIII-XXIV and Ni XIX-XX in absorption; however, the identification of these lines is less certain and a greater range of shifts and breadth is measured. Our observation occurred at a binary phase of phi = 0.76; the lines observed are consistent with absorption in an ionized region of the supergiant O9.7 Iab companion wind. The spectrum is extremely complicated in that a range of temperatures and densities are implied. Prior Chandra HETGS spectra of Cygnus X-1 were obtained in a similar transition state (at phi = 0.93) and in the low/hard state (at phi= 0.84). Considered together, these spectra provide evidence for a companion wind that is focused as it flows onto the black hole primary in this system.
description: 10 pages, 7 color figures, uses emulateapj.sty and apjfonts.sty. Submitted to ApJ
Asymptotic Limits and Zeros of Chromatic Polynomials and Ground State Entropy of Potts Antiferromagnets
Creators: name: Shrock, Robert
name: Tsai, Shan-Ho
Publisher: name: arXiv
Year: 1996
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the asymptotic limiting function $W({G},q) = \lim_{n \to \infty}P(G,q)^{1/n}$, where $P(G,q)$ is the chromatic polynomial for a graph $G$ with $n$ vertices. We first discuss a subtlety in the definition of $W({G},q)$ resulting from the fact that at certain special points $q_s$, the following limits do not commute: $\lim_{n \to \infty} \lim_{q \to q_s} P(G,q)^{1/n} \ne \lim_{q \to q_s} \lim_{n \to \infty} P(G,q)^{1/n}$. We then present exact calculations of $W({G},q)$ and determine the corresponding analytic structure in the complex $q$ plane for a number of families of graphs ${G}$, including circuits, wheels, biwheels, bipyramids, and (cyclic and twisted) ladders. We study the zeros of the corresponding chromatic polynomials and prove a theorem that for certain families of graphs, all but a finite number of the zeros lie exactly on a unit circle, whose position depends on the family. Using the connection of $P(G,q)$ with the zero-temperature Potts antiferromagnet, we derive a theorem concerning the maximal finite real point of non-analyticity in $W({G},q)$, denoted $q_c$ and apply this theorem to deduce that $q_c(sq)=3$ and $q_c(hc) = (3+\sqrt{5})/2$ for the square and honeycomb lattices. Finally, numerical calculations of $W(hc,q)$ and $W(sq,q)$ are presented and compared with series expansions and bounds.
description: 33 pages, Latex, 5 postscript figures, published version; includes further comments on large-q series
Whitham Deformations and Tau Functions in N = 2 Supersymmetric Gauge Theories
Creators: name: Takasaki, Kanehisa
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We review new aspects of integrable systems discovered recently in N=2 supersymmetric gauge theories and their topologically twisted versions. The main topics are (i) an explicit construction of Whitham deformations of the Seiberg-Witten curves for classical gauge groups, (ii) its application to contact terms in the u-plane integral of topologically twisted theories, and (iii) a connection between the tau functions and the blowup formula in topologically twisted theories.
description: 25pages, latex2e; (v2) final version for publication, minor errors corrected
Scaling of the diffraction measure of $k$-free integers near the origin
Creators: name: Baake, Michael
name: Coons, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A25, 42A16, 52C23

description: Asymptotics are derived for the scaling of the total diffraction intensity for the set of $k$-free integers near the origin, which is a measure for the degree of patch fluctuations.
description: 8 pages, revised version with improved presentation
Wanshou wujiang 萬壽無疆 Q00378_01_D
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 470515
subject: Literature in Chinese

description: Launched in October 2019 at the University of Oxford, TEXTCOURT: Linking the Textual Worlds of Chinese Court Theater, ca. 1600-1800 is a five-year research project whose aim is to develop a digital archive of court drama texts to connect and link them with their local and global contexts. The project will enable textual studies of Chinese court drama and produce research publications and an anthology of English translations. It will contribute to the understanding of the role of Chinese court drama in world court cultures.
Integral Invariants of 3-Manifolds
Creators: name: Bott, R.
name: Cattaneo, A. S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This note describes an invariant of rational homology 3-spheres in terms of configuration space integrals which in some sense lies between the invariants of Axelrod and Singer and those of Kontsevich.
description: 39 pages, AMS-LaTeX, to appear in J. Diff. Geom
Zhuxian zhugu 諸仙祝嘏 Q00323_01_E
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 470515
subject: Literature in Chinese

description: Launched in October 2019 at the University of Oxford, TEXTCOURT: Linking the Textual Worlds of Chinese Court Theater, ca. 1600-1800 is a five-year research project whose aim is to develop a digital archive of court drama texts to connect and link them with their local and global contexts. The project will enable textual studies of Chinese court drama and produce research publications and an anthology of English translations. It will contribute to the understanding of the role of Chinese court drama in world court cultures.
Divide-and-Conquer Method for Instanton Rate Theory
Creators: name: Winter, Pierre
name: Richardson, Jeremy O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Ring-polymer instanton theory has been developed to simulate the quantum dynamics of molecular systems at low temperatures. Chemical reaction rates can be obtained by locating the dominant tunneling pathway and analyzing fluctuations around it. In the standard method, calculating the fluctuation terms involves the diagonalization of a large matrix, which can be unfeasible for large systems with a high number of ring-polymer beads. Here we present a method for computing the instanton fluctuations with a large reduction in computational scaling. This method is applied to three reactions described by fitted, analytic and on-the-fly ab initio potential-energy surfaces and is shown to be numerically stable for the calculation of thermal reaction rates even at very low temperature.
Planaeschna viridis : Karube 2004
Creators: name: Kompier, Tom
name: Karube, Haruki
name: Futahashi, Ryo
name: Phan, Quoc Toan
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Aeshnidae
Planaeschna
Planaeschna viridis

description: 4. Planaeschna viridis Karube, 2004
(Fig. 6)
 Planaeschna viridis: Karube (2004) pp. 5–8, Figs 10–20 (description of male and female).
 Material examined. 1 ♂, Bach Ma NP, Thua Thien-Hue Prov., Vietnam, 7-VIII-2016, TK leg.
 Notes. Karube (2004) described P. viridis from Bach Ma NP. The species takes its name from the green maculation on its thorax and abdomen. This coloration is remarkable because, as Karube (2004: p. 8) states, “usually species have a greenish mark on the pterothorax but it is tinted with yellow.” Likewise, the lateral markings on S1–3 are yellowish in most species, not green. The description also notes the “parrot green” colour of the face. The male specimen collected on 7 August 2016 did not have a green facial pattern, although in all other aspects it fitted the description (Fig. 6A). For differences with similar P. samurai and P. tomokunii see under those species.
 Ecology. Based on earlier records the flight period extends from at least May to September. The examined specimen was caught at 1000 m asl., hawking over a stream at dusk, rapidly flying at 4–5 m height.
 Distribution. Endemic to Vietnam (Thua Thien-Hue Prov.)
description: Published as part of Kompier, Tom, Karube, Haruki, Futahashi, Ryo & Phan, Quoc Toan, 2021, The genus Planaeschna McLachlan, 1895 and its subgroupings in Vietnam, with descriptions of three new species (Odonata: Aeshnidae), pp. 1-35 in Zootaxa 5027 (1) on page 13, DOI: 10.11646/zootaxa.5027.1.1, http://zenodo.org/record/5448029
Observation and control of maximal Chern numbers in a chiral topological semimetal
Creators: name: Schröter, Niels B. M.
name: Stolz, Samuel
name: Manna, Kaustuv
name: de Juan, Fernando
name: Vergniory, Maia G.
name: Krieger, Jonas A.
name: Pei, Ding
name: Dudin, Pavel
name: Kim, Timur K.
name: Cacho, Cephise
name: Bradlyn, Barry
name: Borrmann, Horst
name: Schmidt, Marcus
name: Widmer, Roland
name: Strokov, Vladimir
name: Felser, Claudia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological semimetals feature protected nodal band degeneracies characterized by a topological invariant known as the Chern number (C). Nodal band crossings with linear dispersion are expected to have at most |C|=4, which sets an upper limit to the magnitude of many topological phenomena in these materials. Here we show that the chiral crystal PdGa displays multifold band crossings, which are connected by exactly four surface Fermi-arcs, thus proving that they carry the maximal Chern number magnitude of 4. By comparing two enantiomers, we observe a reversal of their Fermi-arc velocities, which demonstrates that the handedness of chiral crystals can be used to control the sign of their Chern numbers.
description: Accepted manuscript
Line bundles on quantum spheres
Creators: name: Brzezinski, Tomasz
name: Majid, Shahn
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81R50; 17B37; 16W30

description: The (left coalgebra) line bundle associated to the quantum Hopf fibration of any quantum two-sphere is shown to be a finitely generated projective module. The corresponding projector is constructed and its monopole charge is computed. It is shown that the Dirac $q$-monopole connection on any quantum two-sphere induces the Grassmannian connection built with this projector.
description: 6 pages, LaTeX (uses aipproc.sty)
GDP in OECD Countries
Creators: name: Leogrande, Angelo
Publisher: name: Zenodo
Year: 2024

description: The GDP in OECD countries grew by an average of 2354.9% between 1970 and 2023. The OECD calculates GDP values at purchasing power parity. Data is available from 1970 to 2023 for nearly all OECD countries.
Bures Measures over the Spaces of Two and Three-Dimensional Density Matrices
Creators: name: Byrd, Mark S.
name: Slater, Paul B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Due to considerable recent interest in the use of density matrices for a wide variety of purposes, including quantum computation, we present a general method for their parameterizations in terms of Euler angles. We assert that this is of more fundamental importance than (as several people have remarked to us) ``just another parameterization of the density matrix.'' There are several uses to which this methodology can be put. One that has received particular attention is in the construction of certain distinguished (Bures) measures on the $(n^2 -1)$-dimensional convex sets of $n \times n$ density matrices.
description: 8 pages, no figures, using LaTeX2e with the Elsevier package
Additional file 12 of The reference genome and transcriptome of the limestone langur, Trachypithecus leucocephalus, reveal expansion of genes related to alkali tolerance
Creators: name: Que, Tengcheng
name: Wang, Huifeng
name: Yang, Weifei
name: Wu, Jianbao
name: Hou, Chenyang
name: Pei, Surui
name: Wu, Qunying
name: Li, Liu Ming
name: Wei, Shilu
name: Xie, Xing
name: Huang, Hongli
name: Chen, Panyu
name: Huang, Yiming
name: Wu, Aiqiong
name: He, Meihong
name: Nong, Dengpan
name: Wei, Xiao
name: Wu, Junyi
name: Nong, Ru
name: Huang, Ning
name: Zhou, Qingniao
name: Lin, Yaowang
name: Lu, Tingxi
name: Wei, Yongjie
name: Li, Shousheng
name: Yao, Jianglong
name: Zhong, Yanli
name: Qin, Huayong
name: Tan, Luohao
name: Li, Yingjiao
name: Li, Weidong
name: Liu, Tao
name: Liu, Sanyang
name: Yu, Yongyi
name: Qiu, Hong
name: Jiang, Yonghua
name: Li, Youcheng
name: Liu, Zhijin
name: Huang, Cheng Ming
name: Hu, Yanling
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 12: Table S7. Summary of the functional gene annotation of T. leucocephalus.
Jinxian zouyue 金仙奏樂 Q00225_01_A
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 470515
subject: Literature in Chinese

description: Launched in October 2019 at the University of Oxford, TEXTCOURT: Linking the Textual Worlds of Chinese Court Theater, ca. 1600-1800 is a five-year research project whose aim is to develop a digital archive of court drama texts to connect and link them with their local and global contexts. The project will enable textual studies of Chinese court drama and produce research publications and an anthology of English translations. It will contribute to the understanding of the role of Chinese court drama in world court cultures.
Economic Development in Extreme Environments
Creators: Jina, Amir Sultan
Publisher: name: Columbia University
Year: 2014
Subjects: Economic development--Environmental aspects
Sustainable development
Sustainable development--Environmental aspects
Economic development
Sustainability
Economics
Climatic changes

description: The role of the environment in the development process is frequently framed as a one-way interaction, with humans decoupling from natural systems, and often damaging them in the process. When the environment is granted an influential role, it is often in establishing the initial conditions under which development will take place, for example, through natural resource endowments or climate factors. However, in some extreme environments, it may be responsible for not only the initial opportunities available in a society, but also for continuously shaping those opportunities through time. The field of Sustainable Development is fundamentally concerned with this two-way interaction between the environment and society, recognizing both as part of a coupled system. The chapters in this volume demonstrate some of the costs associated with development in an extreme environment using methods from climate science, ecology, remote sensing, and economics. By looking at places exposed to tropical cyclones, to persistent pollution resulting from fires that burn readily in a drought-prone location, to annual floods that frequently and randomly strike households in a country, we see that the environment critically shapes aspects of societies and their economic opportunities. By no means are all opportunities dictated by the environment. However, these chapters robustly illustrate that the environment imposes some critical boundaries on development in extreme environments and policies aiming to increase welfare must take account of the coupling of social and natural systems.
Eddington-limited X-ray Bursts as Distance Indicators. I. Systematic Trends and Spherical Symmetry in Bursts from 4U 1728-34
Creators: name: Galloway, Duncan K.
name: Psaltis, Dimitrios
name: Chakrabarty, Deepto
name: Muno, Michael P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the limitations of thermonuclear X-ray bursts as a distance indicator for the weakly-magnetized accreting neutron star 4U 1728-34. We measured the unabsorbed peak flux of 81 bursts in public data from the Rossi X-Ray Timing Explorer (RXTE). The distribution of peak fluxes was bimodal: 66 bursts exhibited photospheric radius expansion and were distributed about a mean bolometric flux of 9.2e-8 erg/cm^2/s, while the remaining (non-radius expansion) bursts reached 4.5e-8 erg/cm^2/s, on average. The peak fluxes of the radius-expansion bursts were not constant, exhibiting a standard deviation of 9.4% and a total variation of 46%. These bursts showed significant correlations between their peak flux and the X-ray colors of the persistent emission immediately prior to the burst. We also found evidence for quasi-periodic variation of the peak fluxes of radius-expansion bursts, with a time scale of approximately 40 d. The persistent flux observed with RXTE/ASM over 5.8 yr exhibited quasi-periodic variability on a similar time scale. We suggest that these variations may have a common origin in reflection from a warped accretion disk. Once the systematic variation of the peak burst fluxes is subtracted, the residual scatter is only approximately 3%, roughly consistent with the measurement uncertainties. The narrowness of this distribution strongly suggests that i) the radiation from the neutron star atmosphere during radius-expansion episodes is nearly spherically symmetric, and ii) the radius-expansion bursts reach a common peak flux which may be interpreted as a standard candle intensity.Adopting the minimum peak flux for the radius-expansion bursts as the Eddington flux limit, we derive a distance for the source of 4.4-4.8 kpc.
description: 9 pages, 7 figures, accepted by ApJ. Minor referee's revisions, also includes 9 newly public X-ray bursts
Dyonic Sectors and Intertwiner Connections in 2+1-dimensional Lattice Z_N-Higgs Models
Creators: name: Barata, J. C. A.
name: Nill, F.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct dyonic states in 2+1-dimensional lattice Z_N-Higgs models, i.e., states which are both, electrically and magnetically charged. The associated Hilbert spaces carry charged representations of the observable algebra, the global transfer matrix and a unitary implementation of the group of spatial lattice translations. We prove that for coinciding total charges these representations are dynamically equivalent and we construct a local intertwiner connection depending on a path in the space of charge distributions. The holonomy of this connection is given by Z_N-valued phases. This will be the starting point for a construction of scattering states with anyon statistics in a subsequent paper.
description: 61 pages. LaTeX. AmsTeX fonts used.
The search for anisotropy in the gravitational-wave background with pulsar-timing arrays
Creators: name: Hotinli, Selim C.
name: Kamionkowski, Marc
name: Jaffe, Andrew H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Pulsar-timing arrays (PTAs) are seeking gravitational waves from supermassive-black-hole binaries, and there are prospects to complement these searches with stellar-astrometry measurements. Theorists still disagree, however, as to whether the local gravitational-wave background will be statistically isotropic, as arises if it is the summed contributions from many SMBH binaries, or whether it exhibits the type of statistical anisotropy that arises if the local background is dominated by a handful (or even one) bright source. Here we derive, using bipolar spherical harmonics, the optimal PTA estimators for statistical anisotropy in the GW background and simple estimates of the detectability of this anisotropy. We provide results on the smallest detectable amplitude of a dipole anisotropy (and several other low-order multipole moments) and also the smallest detectable amplitude of a "beam" of gravitational waves. Results are presented as a function of the signal-to-noise with which the GW signal is detected and as a function of the number of pulsars (assuming uniform distribution on the sky and equal sensitivity per pulsar). We provide results first for measurements with a single time-domain window function and then show how the results are augmented with the inclusion of time-domain information. The approach here is intended to be conceptually straightforward and to complement the results of more detailed (but correspondingly less intuitive) modeling of the actual measurements.
description: 9 pages, 4 figures, v3: Corrected minor typo and added Erratum. Conclusions unchanged
Economic Empowerment and Political Participation
Creators: Howard, Patrice Zakia
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Political science
subject: FOS: Political science

description: This study joins the growing research in social science centered on exploring the political implications of individual-targeted development programs by empirically examining the political behavior and attitudes of program participants. It also joins the established literatures in political theory and political science on what motivates individuals to become politically active, and the effect of economic inputs on an individual's propensity to engage in political activities. Using an original survey of more than 700 Senegalese citizens in the administrative department of Guediawaye, Senegal, the study finds that microfinance in Senegal is vastly different from more popular notions of microfinance. The overwhelming majority of microfinance clients in Senegal borrow as individuals, and not as members of groups. Both men and women are active in the micro-credit industry and more than 18% of adults in Senegal have experience with micro-credit loans.

By using econometric analysis to compare the political activities of microfinance borrowers and non-microfinance borrowers, group and individual microfinance borrowers, and pre-microfinance borrowing political participation to post-microfinance political participation, this study offers a more nuanced and accurate understanding of the relationship of microfinance to political participation. It explores how ideas of political and economic empowerment and what motivates people to become politically active translates across different contexts. The study concludes that microfinance is positively and significantly associated with political participation, and social capital, that microfinance and the various forms of social capital matter more for some forms of participation than for others, and that microfinance experience does not systematically cause an increase in political participation, through social capital or any other mechanism.
Topological fluctuating electron-hole Cooper pairs in graphene-GaAs heterostructures
Creators: name: Efimkin, Dmitry K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Fluctuating Cooper pairs formed by spatially separated electrons and holes are precursors of their equilibrium condensation. Their presence strongly impacts transport phenomena and interlayer tunneling in double-layer systems above the transition temperature. Here, we consider a hybrid graphene/quantum well double-layer system and focus on the dynamics of fluctuating Cooper pairs formed by conventional electrons and Dirac holes. We demonstrate that the chiral nature of Dirac holes is manifested in the presence of two (almost) degenerate competing pairing channels, which are intertwined by effective pseudospin-orbit interactions. We argue that the spectrum of the Ginzburg-Landau Hamiltonian describing the energetics of fluctuating Cooper pairs is geometrically nontrivial and can be characterized by the half-integer topological Chern number. We derive a kinetic equation for fluctuating Cooper pairs and demonstrate that their nontrivial geometries generate two anomalous velocities of distinct geometrical origins. These velocities are intricately connected with the Berry curvature and the quantum metric for the Ginzburg-Landau Hamiltonian, respectively. The resulting anomalous contributions to conductivity are singular at the transition temperature, and we discuss possible setups for their experimental observation.
description: 20 pages, and 5 figures. Published version
Additional file 3 of Gene coexpression network approach to develop an immune prognostic model for pancreatic adenocarcinoma
Creators: name: Gu, Xiaoqiang
name: Zhang, Qiqi
name: Wu, Xueying
name: Fan, Yue
name: Qian, Jianxin
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3: Table S2. Ten genes with both a log-rank P ≤ 0.2 and likelihood P ≤ 0.2 in the univariate analysis.
One-way quantum repeater based on near-deterministic photon-emitter interfaces
Creators: name: Borregaard, Johannes
name: Pichler, Hannes
name: Schöder, Tim
name: Lukin, Mikhail D.
name: Lodahl, Peter
name: Sørensen, Anders S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a novel one-way quantum repeater architecture based on photonic tree-cluster states. Encoding a qubit in a photonic tree-cluster protects the information from transmission loss and enables long-range quantum communication through a chain of repeater stations. As opposed to conventional approaches that are limited by the two-way communication time, the overall transmission rate of the current quantum repeater protocol is determined by the local processing time enabling very high communication rates. We further show that such a repeater can be constructed with as little as two stationary qubits and one quantum emitter per repeater station, which significantly increases the experimental feasibility. We discuss potential implementations with diamond defect centers and semiconductor quantum dots efficiently coupled to photonic nanostructures and outline how such systems may be integrated into repeater stations.
description: Merged article and supplemental material, corrected typos in Eq. (8)-(10) in supplemental material
Scaffolding Course Research Assignments to Incorporate Information Literacy Skill Development : An Interdisciplinary Pilot Project
Creators: name: Anderson, Nadine
name: McAuslan, Pam
name: Draus, Paul
name: Clark-Foos, Arlo
name: Beauchesne, Patrick
Publisher: name: The University of British Columbia
Year: 2017

description: Embedding librarians and systematic, multiple Information Literacy (IL) sessions into courses is gaining popularity. However, this is time-intensive for both faculty and librarians; faculty have to find time in their courses for multiple IL sessions, and librarians have to find time to teach all of these sessions across the curriculum. How can we embed librarian expertise and IL skill development into courses in a more sustainable way? This presentation describes a cross-disciplinary partnership between the Behavioral Sciences librarian and four faculty in Anthropology, Psychology, and Sociology at the University of Michigan-Dearborn on a pilot project which addresses this challenge. This pilot project began because faculty were finding that many of the students in their courses seemed to be getting overwhelmed by their research papers and projects, which was reflected in poor performance on these assignments. The pilot project team took an assignment scaffolding approach to address these issues. Assignment scaffolding involves taking complex assignments, such as research papers and projects, and breaking them down into smaller components. The pilot project team systematically restructured the research papers and projects in their courses to create scaffolded assignments reflecting the steps of the research process. IL skill development was integrated into these graded assignments, which built towards final research papers and projects. These scaffolded assignments were then piloted in twelve courses across Behavioral Sciences disciplines, with assessments to measure the overall effectiveness of this pilot project. This presentation walks through the process of restructuring and rewriting research papers and projects to incorporate IL skill development in a systematic, meaningful way. This presentation also discuss the benefits of adopting the assignment scaffolding method to integrate librarian expertise and systematic IL skill development into a course and across the curriculum, as well as the sustainability of this method.
Boundary Dynamics of Higher Dimensional AdS Spacetime
Creators: name: Gegenberg, J.
name: Kunstatter, G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We examine the dynamics induced on the four dimensional boundary of a five dimensional anti-deSitter spacetime by the five dimensional Chern-Simons theory with gauge group the direct product of SO(4,2) with U(1). We show that, given boundary conditions compatible with the geometry of 5d AdS spacetime in the asymptotic region, the induced surface theory is the $WZW_4$ model.
description: Latex, 12 pages, including title page; discussion of surface terms clarified; conclusions unchanged
Mean squared displacement in a generalized Lévy walk model
Creators: name: Bothe, M.
name: Sagues, F.
name: Sokolov, I. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Lévy walks represent a class of stochastic models (space-time coupled continuous time random walks) with applications ranging from the laser cooling to the description of animal motion. The initial model was intended for the description of turbulent dispersion as given by the Richardson's law. The existence of this Richardson's regime in the original model was recently challenged in the work by T. Albers and G. Radons, Phys. Rev. Lett. 120, 104501 (2018): the mean squared displacement (MSD) in this model diverges, i.e. does not exist, in the regime, where it presumably should reproduce the Richardson's law. In the supplemental material to this work the authors present (but do not investigate in detail) a generalized model interpolating between the original one and the Drude-like models known to show no divergences. In the present work we give a detailed investigation of the ensemble MSD in this generalized model, show that the behavior of the MSD in this model is the same (up to prefactiors) as in the original one in the domains where the MSD in the original model does exist, and investigate the conditions under which the MSD in the generalized model does exist or diverges. Both ordinary and aged situations are considered.
Yaolin xiang shijie 瑤林香世界 Q00213_01_A
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 470515
subject: Literature in Chinese

description: Launched in October 2019 at the University of Oxford, TEXTCOURT: Linking the Textual Worlds of Chinese Court Theater, ca. 1600-1800 is a five-year research project whose aim is to develop a digital archive of court drama texts to connect and link them with their local and global contexts. The project will enable textual studies of Chinese court drama and produce research publications and an anthology of English translations. It will contribute to the understanding of the role of Chinese court drama in world court cultures.
On cosmological evolution with the Lambda-term and any linear equation of state
Creators: name: Silbergleit, A. S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observational indications of an accelerating universe enhance the interest in studying models with a cosmological constant. We investigate cosmological expansion (FRW metric) with $Λ>0$ for a general linear equation of state $p=wρ$, $w>-1$, so that the interplay between cosmological vacuum and quintessence is allowed, as well. Four closed-form solutions (flat universe with any $w$, and $w=1/3$, $-1/3, -2/3$) are given, in a proper compact representation. Various estimates of the expansion are presented in a general case when no closed-form solutions are available. For the open universe a simple relation between solutions with different parameters is established: it turns out that a solution with some $w$ and (properly scaled) $Λ$ is expressed algebraically via another solution with special different values of these parameters. The expansion becomes exponential at large times, and the amplitude at the exponent depends on the parameters. We study this dependence in detail, deriving various representations for the amplitude in terms of integrals and series. The closed-form solutions serve as benchmarks, and the solution transformation property noted above serves as a useful tool. Among the results obtained, one is that for the open universe with relatively small cosmological constant the amplitude is independent of the equation of state. Also, estimates of the cosmic age through the observable ratio $Ω_Λ/Ω_M$ and parameter $w$ are given; when inverted, they provide an estimate of $w$, i. e., the state equation, through the known $Ω_Λ/Ω_M$ and age of the universe.
description: 3 figures
title: Das Sambucetum ebuli Felf. 1942 im südlichen Mitteleuropa und seine geographische Gliederung
Creators: name: Brandes, Dietmar
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1982
Subjects: subject: 580

description: Aus Bayern, Österreich und Südtirol wird das Sambucetum ebuli Felf. 1942 mit pflanzensoziologischen Aufnahmen belegt. An Hand einer Sammeltabelle wird die geographische Gliederung dieser Assoziation diskutiert. Es lassen sich deutlich drei Ausbildungen unterscheiden, die hier als Rassen und nicht als Gebietsassoziationen eingestuft werden: Rasse von Heracleum sphondylium (südliches und westliches Mitteleuropa), Rasse von Carduus acanthoides (südöstliches Mitteleuropa, Rumänien), Rasse von Ballota nigra ssp. alba (nördliches Mittelmeergebiet).
description: Sambucus ebulus communities from Bavaria, Austria and Southern Tyrol are investigated by means of plant sociology. Guided by a Sammeltabelle, the geographical division of Sambucetum ebuli Felf. 1942 is discussed. Distinctly there are three types to discern, which in this paper are classified as races and not as territorial associations: Race of Heracleum sphondylium (southern and western Central Europe), race of Carduus acanthoides (south-eastern Central Europe, Romania), race of Ballota nigra ssp. alba (sub-Mediterranean area).
title: Nitrophile Saumgesellschaften in alten Parkanlagen und ihre Bedeutung für den Naturschutz
Creators: name: Brandes, Dietmar
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1985
Subjects: subject: 580

description: The importance of nitrophilous Saum (skirt) communities to nature conservancy is pointed out by examples from Lower Saxony and the eastern part of Austria. Especially in ancient parks the seams are important refugies for numerous endangered species. The Chelidonio-Parietarietum officinalis is described as a new association, and exemplified with releves from various parts of Central Europe.
Tsunami waves extensively resurfaced the shorelines of an early Martian ocean
Creators: name: Rodriguez, J. Alexis P.
name: Fairen, Alberto G.
name: Tanaka, Kenneth L.
name: Zarroca, Mario
name: Linares, Rogelio
name: Platz, Thomas
name: Komatsu, Goro
name: Miyamoto, Hideaki
name: Kargel, Jeffrey S.
name: Yan, Jianguo
name: Gulick, Virginia
name: Higuchi, Kana
name: Baker, Victor R.
name: Glines, Natalie
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie

description: It has been proposed that ~3.4 billion years ago an ocean fed by enormous catastrophic floods covered most of the Martian northern lowlands. However, a persistent problem with this hypothesis is the lack of definitive paleoshoreline features. Here, based on geomorphic and thermal image mapping in the circum-Chryse and northwestern Arabia Terra regions of the northern plains, in combination with numerical analyses, we show evidence for two enormous tsunami events possibly triggered by bolide impacts, resulting in craters ~30 km in diameter and occurring perhaps a few million years apart. The tsunamis produced widespread littoral landforms, including run-up water- ice-rich and bouldery lobes, which extended tens to hundreds of kilometers over gently sloping plains and boundary cratered highlands, as well as backwash channels where wave retreat occurred on highland-boundary surfaces. The ice-rich lobes formed in association with the younger tsunami, showing that their emplacement took place following a transition into a colder global climatic regime that occurred after the older tsunami event. We conclude that, on early Mars, tsunamis played a major role in generating and resurfacing coastal terrains.
Wave Function Shredding by Sparse Quantum Barriers
Creators: name: Cheon, Taksu
name: Exner, Pavel
name: Seba, Petr
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: Condensed Matter (cond-mat)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We discuss a model in which a quantum particle passes through $δ$ potentials arranged in an increasingly sparse way. For infinitely many barriers we derive conditions, expressed in terms ergodic properties of wave function phases, which ensure that the point and absolutely continuous parts are absent leaving a purely singularly continuous spectrum. For a finite number of barriers, the transmission coefficient shows extreme sensitivity to the particle momentum with fluctuation in many different scales. We discuss a potential application of this behavior for erasing the information carried by the wave function.
description: 4 pages ReVTeX with 3 epsf figures
title: Flora und Vegetation von Bahnhöfen im nördlichen Deutschland
Creators: name: Brandes, Dietmar
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1984
Subjects: subject: 580

description: In der vorliegenden Arbeit werden Flora und Vegetation von Bahnhöfen im nördlichen Deutschland beschrieben. Zur Charakterisierung der Flora dienen einmal die nur auf Bahnhöfen vorkommenden Arten, zum anderen die dort besonders häufigen. Insgesamt wurden 57 Bahnhöfe untersucht, zu Vergleichszwecken wurden Angaben der Literatur herangezogen. Die Pflanzengesellschaften werden nach Standorten geordnet besprochen. Auf die Änderung von Vegetation und Flora im klimatischen W-O-Gefälle wird hingewiesen. Den Abschluss bildet eine Betrachtung über die Bedeutung von Bahnhöfen für den Naturschutz.
description: Flora and Vegetation of railway stations in northern Germany are discribed in the present paper. For characterizing the flora, there are on the one hand those species to be found only at railway stations, and at the other those, which occur very frequently. 68 railway stations were examined; for comparisons literature was cited. A list of plant communities is also given. The variations of flora and Vegetation within the W-E climate gradient are noted. The end gives a view to the importance of railway stations to nature protection.
Xianzi xiaoling 仙子效靈 Q00207_01_A
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 470515
subject: Literature in Chinese

description: Launched in October 2019 at the University of Oxford, TEXTCOURT: Linking the Textual Worlds of Chinese Court Theater, ca. 1600-1800 is a five-year research project whose aim is to develop a digital archive of court drama texts to connect and link them with their local and global contexts. The project will enable textual studies of Chinese court drama and produce research publications and an anthology of English translations. It will contribute to the understanding of the role of Chinese court drama in world court cultures.