cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hidden 12-dimensional structures in AdS(5)xS(5) and M(4)xR(6) Supergravities
Creators: name: Bars, Itzhak
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that AdS(5)xS(5) supergravity has hitherto unnoticed supersymmetric properties that are related to a hidden 12-dimensional structure. The totality of the AdS(5)xS(5) supergravity Kaluza-Klein towers is given by a single superfield that describes the quantum states of a 12-dimensional supersymmetric particle. The particle has super phase space (X,P,Theta) with (10,2) signature and 32 fermions. The worldline action is constructed as a generalization of the supersymmetric particle action in Two-Time Physics. SU(2,2|4) is a linearly realized global supersymmetry of the 2T action. The action is invariant under the gauge symmetries Sp(2,R), SO(4,2),SO(6), and fermionic kappa. These gauge symmetries insure unitarity and causality while allowing the reduction of the 12-dimensional super phase space to the correct super phase space for AdS(5)xS(5) or M(4)xR(6) with 16 fermions and one time, or other dually related one time spaces. One of the predictions of this formulation is that all of the SU(2,2|4) representations that describe Kaluza-Klein towers in AdS(5)xS(5) or M(4)xR(6) supergravity universally have vanishing eigenvalues for all the Casimir operators. This prediction has been verified directly in AdS(5)xS(5) supergravity. This suggests that the supergravity spectrum supports a hidden (10,2) structure. A possible duality between AdS(5)xS(5) and M(4)xR(6) supergravities is also indicated. Generalizations of the approach applicable 10-dimensional super Yang Mills theory and 11-dimensional M-theory are briefly discussed.
description: LaTeX, 32 pages. v2 includes additional generalizations in the discussion section. The norm of J has been modified in eqs.(2.6, 3.3, 3.8). v3 includes a correction to Eq.(5.3)
Field-aware Calibration: A Simple and Empirically Strong Method for Reliable Probabilistic Predictions
Creators: name: Pan, Feiyang
name: Ao, Xiang
name: Tang, Pingzhong
name: Lu, Min
name: Liu, Dapeng
name: Xiao, Lei
name: He, Qing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: It is often observed that the probabilistic predictions given by a machine learning model can disagree with averaged actual outcomes on specific subsets of data, which is also known as the issue of miscalibration. It is responsible for the unreliability of practical machine learning systems. For example, in online advertising, an ad can receive a click-through rate prediction of 0.1 over some population of users where its actual click rate is 0.15. In such cases, the probabilistic predictions have to be fixed before the system can be deployed. In this paper, we first introduce a new evaluation metric named field-level calibration error that measures the bias in predictions over the sensitive input field that the decision-maker concerns. We show that existing post-hoc calibration methods have limited improvements in the new field-level metric and other non-calibration metrics such as the AUC score. To this end, we propose Neural Calibration, a simple yet powerful post-hoc calibration method that learns to calibrate by making full use of the field-aware information over the validation set. We present extensive experiments on five large-scale datasets. The results showed that Neural Calibration significantly improves against uncalibrated predictions in common metrics such as the negative log-likelihood, Brier score and AUC, as well as the proposed field-level calibration error.
description: WWW 2020
Giant gravitons as probes of gauged supergravity
Creators: name: Hackett-Jones, Emily J.
name: Smith, Douglas J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider giant graviton probes of 11-dimensional supergravity solutions which are lifts of arbitrary solutions of 4-dimensional U(1)^4 and 7-dimensional U(1)^2 gauged supergravities. We show that the structure of the lift ansatze is sufficient to explicitly find a solution for the embedding and motion of the M5- or M2-brane in the internal space. The brane probe action then reduces to that of a massive charged particle in the gauged supergravity, demonstrating that probing the gauged supergravity with such particles is equivalent to the more involved 11-dimensional brane probe calculation. As an application of this we use these particles to probe superstar geometries which are conjectured to be sourced by giant gravitons.
description: 18 pages; reference added
Agriocnemis victoria Fraser 1928
Creators: name: Legrand, Jean
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Coenagrionidae
Agriocnemis
Agriocnemis victoria

description: Agriocnemis victoria Fraser, 1928
 Transactions of the entomological Society of London 76 (1): 123; ♁ ♀, Uganda; lectotype in BMNH.
Aguesse, 1968: 526; Legrand & Girard, 1992: 17 (citation de Guinée).
DESCRIPTION. — Espèce nettement plus petite (L. = 22 mm), c’est en fait le plus petit Odonate connu pour cette région; labre clair, verdâtre; postclypéus noir, brillant sans reflets métalliques; ptérothorax noir avec une bande antéhumérale claire et pruineuse; abdomen très fin, noir avec les segments 8 à 10 rouges; appendices supérieurs en forme de pince, plus longs que le dixième segment abdominal, les inférieurs extrêmement réduits.
 ÉCOLOGIE. — Aguesse (1968) rapporte la présence de cette espèce sur des eaux stagnantes dans les environs du Nimba. Cependant aucun des spécimens récoltés par cet auteur n’est parvenu au Muséum. Bien que je n’aie pas observé A. victoria pendant mon séjour en Guinée (mai-juin), cette espèce doit pouvoir s’y rencontrer à une autre saison. Dans d’autres pays, pendant la saison des pluies, je l’ai récoltée en nombre sur des mares permanentes ou temporaires envahies par une végétation herbacée assez basse.
DISTRIBUTION. — Semble être répandue dans presque toute l’Afrique intertropicale.
description: Published as part of Legrand, Jean, 2003, Les Odonates du Nimba et de sa région, pp. 231-310 in Mémoires du Muséum national d'Histoire naturelle 190 on pages 248-249
Semiclassical dynamics of a spin-1/2 in an arbitrary magnetic field
Creators: name: Alscher, Adrian
name: Grabert, Hermann
Publisher: name: arXiv
Year: 1999
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The spin coherent state path integral describing the dynamics of a spin-1/2-system in a magnetic field of arbitrary time-dependence is considered. Defining the path integral as the limit of a Wiener regularized expression, the semiclassical approximation leads to a continuous minimal action path with jumps at the endpoints. The resulting semiclassical propagator is shown to coincide with the exact quantum mechanical propagator. A non-linear transformation of the angle variables allows for a determination of the semiclassical path and the jumps without solving a boundary-value problem. The semiclassical spin dynamics is thus readily amenable to numerical methods.
description: 16 pages, submitted to Journal of Physics A
Normal frames and the validity of the equivalence principle. I. Cases in a neighborhood and at a point
Creators: name: Iliev, Bozhidar Z.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A treatment in a neighborhood and at a point of the equivalence principle on the basis of derivations of the tensor algebra over a manifold is given. Necessary and sufficient conditions are given for the existence of local bases, called normal frames, in which the components of derivations vanish in a neighborhood or at a point. These frames (bases), if any, are explicitly described and the problem of their holonomicity is considered. In particular, the obtained results concern symmetric as well as nonsymmetric linear connections.
description: LaTeX2e, 9 pages, to be published in Journal of Physics A: Mathematical and General
title: Regional Organizations and Sanctions Against Members
title: Explaining the Different Trajectories of the African Union, the League of Arab States, and the Association of Southeast Asian Nations
titleType: Subtitle
Creators: name: Hellquist, Elin
Publisher: name: Freie Universität Berlin
Year: 2014
Subjects: subject: 300 Sozialwissenschaften::320 Politikwissenschaft::327 Internationale Beziehungen

description: The Organization of African Unity (OAU), the League of Arab States (Arab League), and the Association of Southeast Asian Nations (ASEAN) were all established as post-colonial projects with the explicit aim to safeguard state borders and shield sovereign governments from external interference. Yet, their approaches to regional interference in domestic affairs have with time taken on different trajectories. This working paper traces the present diversity in regional approaches to negative sanctions against members back to formative events in the early days of regional cooperation. All three organizations had to confront political problems of substantial regional weight at an early stage: the OAU the apartheid regimes in Southern Africa, ASEAN the Vietnam War, and the Arab League the creation of the state of Israel. The analysis demonstrates that the concepts of the region the organizations articulated as they dealt with these problems continue to inform present positions on involvement in domestic affairs.
Phaon Selys 1853
Creators: name: Legrand, Jean
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Phaon

description: Genre PHAON Sélys, 1853
 Bulletin de l’Académie royale de Belgique 20 (Annexe): 22 et 23 [idem sep.].
Bridges, 1991; Pinhey, 1962 (Catalogue); Tsuda, 1991 (distribution).
 Espèce type: Calopteryx iridipennis Burmeister, 1839.
Ce genre et les suivants possèdent de nombreuses nervures transverses anténodales. Les espèces sont grandes et sveltes; corps vert avec des reflets métalliques, ptérothorax massif, pattes longues garnies de très longues et fines épines sur les fémurs et les tibias; ailes longues, enfumées ou non, avec des reflets irisés; 2 espèces dans la région.
description: Published as part of Legrand, Jean, 2003, Les Odonates du Nimba et de sa région, pp. 231-310 in Mémoires du Muséum national d'Histoire naturelle 190 on page 249
Open strings and their symmetry groups
Creators: name: Sagnotti, Augusto
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Much of the recent progress in String Theory can be traced to a precise strategy: a careful study of the few models known since the beginnings of the subject, and the abstraction from them of basic properties that one would like to demand from other models. This could be termed a set of "model-building rules". The approach corresponds to the fact, often a source of embarrassment to specialists, that String Theory, born as a set of rules rather than as a set of principles, has long resisted attempts to reduce it to a logically satisfying structure. Talk presented at the Cargese Summer Institute on Non-Perturbative Methods in Field Theory, Cargese, France, July 16-30, 1987.
description: Latex, 12 pages, 2 eps figures. Talk presented at the Cargese Summer Institute on Non-Perturbative Methods in Field Theory, Cargese, France, July 16-30, 1987
Han Koong Tsew, or the sorrows of Han WE00019A
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 430301
subject: Asian history

description: Launched on 1 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 that has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 819953).
Implications of chiral symmetry on $S$-wave pionic resonances and the scalar charmed mesons
Creators: name: Du, Meng-Lin
name: Guo, Feng-Kun
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The chiral symmetry of QCD requires energy-dependent pionic strong interactions at low energies. This constraint, however, is not fulfilled by the usual Breit--Wigner parameterization of pionic resonances, leading to masses larger than the real ones. We derive relations between nonleptonic three-body decays of the $B$-meson into a $D$-meson and a pair of light pseudoscalar mesons based on SU(3) chiral symmetry. Employing effective field theory methods, we demonstrate that taking into account the final-state interactions, the experimental data of the decays $B^-\to D^+π^-π^-$, $B_s^0\to \bar{D}^0K^-π^+$, $B^0\to\bar{D}^0π^-π^+$, $B^-\to D^+π^-K^-$ and $B^0\to\bar{D}^0π^-K^+$ can all be described by the nonperturbative $π/η/K$-$D/D_s$ scattering amplitudes previously obtained from a combination of chiral effective field theory and lattice QCD calculations. The results provide a strong support of the scenario that the broad scalar charmed meson $D^\ast_0(2400)$ should be replaced by two states, the lower one of which has a mass of around 2.1 GeV, much smaller than that extracted from experimental data using a Breit--Wigner parameterization.
description: 26 pages, 9 figueres
(Revised) Notes and Works Cited for "Unburying the Orientalist Gaze of an African American Soldier in _Home_"
Creators: name: Namgung, Song
Publisher: name: figshare
Year: 2019
Subjects: subject: Literature
subject: 200508 Other Literatures in English
subject: FOS: Languages and literature

description: This data was used for writing an article "Unburying the Orientalist Gaze of an African American Soldier in _Home_"
Journal of a voyage in 1811 and 1812, to Madras and China; returning by the Cape of Good Hope and St. Helena WE00020B
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 430301
subject: Asian history

description: Launched on 1 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 that has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 819953).
How much two-photon exchange is needed to resolve the proton form factor discrepancy?
Creators: name: Schmidt, Axel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: One possible explanation for the proton form factor discrepancy is a contribution to the elastic electron-proton cross section from hard two-photon exchange (TPE), a typically neglected radiative correction. Hard TPE cannot be calculated in a model-independent way, but it can be determined experimentally by looking for deviations from unity in the ratio of positron-proton to electron-proton cross sections. Three recent experiments have measured this cross section ratio to quantify hard TPE. To interpret the results of these experiments, it is germane to ask: 'How large of a deviation from unity is necessary to fully resolve the form factor discrepancy?' With a minimal set of assumptions and using global fits to unpolarized and polarized elastic scattering data, I estimate the necessary size of the TPE correction in the kinematics of the three recent experiments and compare to their measurements. I find wide variation when using different global fits, implying that the magnitude of the form factor discrepancy is not well-constrained. The recent hard TPE measurements can easily accommodate the hypothesis that TPE underlies the proton form factor discrepancy.
description: 6 pages, 4 figures (6 panels)
Additional file 6 of CDK6-PI3K signaling axis is an efficient target for attenuating ABCB1/P-gp mediated multi-drug resistance (MDR) in cancer cells
Creators: name: Zhang, Lei
name: Li, Yidong
name: Hu, Chaohua
name: Chen, Yangmin
name: Chen, Zhuo
name: Chen, Zhe-Sheng
name: Zhang, Jian-Ye
name: Fang, Shuo
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Hematology
subject: Virology

description: Additional file 6: Table S1. Differential expression of CDK6, ABCB1, CDK4, PIK3CA, PIK3CB and GAPDH genes in KB-C2 and KB-C2-k.o.cdk6. Identical amounts of total RNA from KB-C2 and KB-C2-k.o.cdk6 cells were analyzed for transcriptome sequences and differential gene expression. The transcripts encoding full or effective length of proteins are listed.
Local-global principles for tori over arithmetic curves
Creators: name: Colliot-Thélène, Jean-Louis
name: Harbater, David
name: Hartmann, Julia
name: Krashen, Daniel
name: Parimala, R.
name: Suresh, V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11E72, 12G05, 14G05 (primary), 14H25, 20G15, 14G27 (secondary)

description: In this paper we study local-global principles for tori over semi-global fields, which are one variable function fields over complete discretely valued fields. In particular, we show that for principal homogeneous spaces for tori over the underlying discrete valuation ring, the obstruction to a local-global principle with respect to discrete valuations can be computed using methods coming from patching. We give a sufficient condition for the vanishing of the obstruction, as well as examples were the obstruction is nontrivial or even infinite. A major tool is the notion of a flasque resolution of a torus.
description: 27 pages; final pre-publication version; correction to Theorem 6.5, rewording at Proposition 6.3 and beginning of Section 8.3
Fast holonomic quantum computation on superconducting circuits with optimal control
Creators: name: Li, Sai
name: Chen, Tao
name: Xue, Zheng-Yuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Geometric phases induced in quantum evolutions have built-in noise-resilient characters, and thus can find applications in many robust quantum manipulation tasks. Here, we propose a feasible and fast scheme for universal quantum computation on superconducting circuits with nonadiabatic non-Abelian geometric phases, using resonant interaction of three-level quantum system. In our scheme, arbitrary single-qubit quantum gates can be implemented in a single-loop scenario by shaping both the amplitudes and phases of the two driving microwave fields resonantly coupled to a transmon device. Moreover, nontrivial two-qubit gates can also be realized with an auxiliary transmon simultaneously coupled to the two target transmons in an effective resonant way. In particular, our proposal can be compatible to various optimal control techniques, which further enhances the robustness of the quantum operations. Therefore, our proposal represents a promising way towards fault-tolerant quantum computation on solid-state quantum circuits.
description: 9 pages, 5 figures
Journal of the proceedings of the late Embassy to China: comprising a correct narrative of the public transactions of the embassy, of the voyage to and from China WE00021A
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 430301
subject: Asian history

description: Launched on 1 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 that has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 819953).
Lattice knot theory and quantum gravity in the loop representation
Creators: name: Fort, Hugo
name: Gambini, Rodolfo
name: Pullin, Jorge
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present an implementation of the loop representation of quantum gravity on a square lattice. Instead of starting from a classical lattice theory, quantizing and introducing loops, we proceed backwards, setting up constraints in the lattice loop representation and showing that they have appropriate (singular) continuum limits and algebras. The diffeomorphism constraint reproduces the classical algebra in the continuum and has as solutions lattice analogues of usual knot invariants. We discuss some of the invariants stemming from Chern--Simons theory in the lattice context, including the issue of framing. We also present a regularization of the Hamiltonian constraint. We show that two knot invariants from Chern--Simons theory are annihilated by the Hamiltonian constraint through the use of their skein relations, including intersections. We also discuss the issue of intersections with kinks. This paper is the first step towards setting up the loop representation in a rigorous, computable setting.
description: 23 pages, RevTeX, 14 figures included with psfig
Estimating the density of resident coastal fish using underwater cameras: accounting for individual detectability
Creators: name: Follana-Berná, Guillermo
name: Palmer, Miquel
name: Campos-Candela, Andrea
name: Arechavala-Lopez, Pablo
name: Diaz-Gil, Carlos
name: Alós, Josep
name: Catalan, Ignacio A.
name: Balle, Salvador
name: Coll, Josep
name: Morey, Gabriel
name: Verger, Francisco
name: Grau, Amalia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Technological advances in underwater video recording are opening novel opportunities for monitoring wild fish. However, extracting data from videos is often challenging. Nevertheless, it has been recently demonstrated that accurate and precise estimates of density for animals (whose normal activities are restricted to a bounded area or home range) can be obtained from counts averaged across a relatively low number of video frames. The method, however, requires that individual detectability (PID, the probability of detecting a given animal provided that it is actually within the area surveyed by a camera) has to be known. Here we propose a Bayesian implementation for estimating PID after combining counts from cameras with counts from any reference method. The proposed framework was demonstrated using Serranus scriba as a case-study, a widely distributed and resident coastal fish. Density and PID were calculated after combining fish counts from unbaited remote underwater video (RUV) and underwater visual censuses (UVC) as reference method. The relevance of the proposed framework is that after estimating PID, fish density can be estimated accurately and precisely at the UVC scale (or at the scale of the preferred reference method) using RUV only. This key statement has been extensively demonstrated using computer simulations yielded by real empirical data. Finally, we provide a simulation tool-kit for comparing the expected precision attainable for different sampling effort and for species with different levels of PID. Overall, the proposed method may contribute to substantially enlarge the spatio-temporal scope of density monitoring programs for many resident fish.
Scaling relations and baryonic cycling in local star-forming galaxies: I. The sample
Creators: name: Ginolfi, Michele
name: Hunt, Leslie K.
name: Tortora, Crescenzo
name: Schneider, Raffaella
name: Cresci, Giovanni
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Metallicity and gas content are intimately related in the baryonic exchange cycle of galaxies, and galaxy evolution scenarios can be constrained by quantifying this relation. To this end, we have compiled a sample of ~400 galaxies in the Local Universe, dubbed "MAGMA" (Metallicity And Gas for Mass Assembly), which covers an unprecedented range in parameter space, spanning more than 5 orders of magnitude in stellar mass (Mstar), star-formation rate (SFR), and gas mass (Mgas), and a factor of ~60 in metallicity [Z, 12+log(O/H)]. Stellar masses and SFRs have been recalculated for all the galaxies using IRAC, WISE and GALEX photometry, and 12+log(O/H) has been transformed, where necessary, to a common metallicity calibration. To assess the true dimensionality of the data, we have applied multi-dimensional principal component analyses (PCAs) to our sample. In confirmation of previous work, we find that even with the vast parameter space covered by MAGMA, the relations between Mstar, SFR, Z and Mgas (MHI+MH2) require only two dimensions to describe the hypersurface. To accommodate the curvature in the Mstar-Z relation, we have applied a piecewise 3D PCA that successfully predicts observed 12+log(O/H) to an accuracy of ~0.1dex. MAGMA is a representative sample of isolated star-forming galaxies in the Local Universe, and can be used as a benchmark for cosmological simulations and to calibrate evolutionary trends with redshift.
description: 21 pages, 12 figures. Accepted for publication in A&A. Sample and results improved compared to previous versions. Some analysis has been removed and will be expanded in future papers
Laou-Seng-Urh, or, An heir in his old age WE00022A
Creators: name: Admin, Textcourt
Publisher: name: University of Oxford
Year: 2025
Subjects: classificationCode: 430301
subject: Asian history

description: Launched on 1 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 that has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 819953).
On Reflectivity of Quantum Black Hole Horizons
Creators: name: Oshita, Naritaka
name: Wang, Qingwen
name: Afshordi, Niayesh
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the reflectivity of quantum black hole (BH) horizons using detailed balance and fluctuation-dissipation theorem, finding a universal flux reflectivity given by the Boltzmann factor ${\mathcal R} = \exp\left(-{\hbar |ω| \over k T_{\rm H}}\right)$, where $ω$ is frequency in the horizon frame and $T_{\rm H}$ is the Hawking temperature. This implies CP-symmetry (or $\bf{RP}^3$ topology) of the extended BH spacetime. We then briefly discuss related physical implications: We predict echoes in the ringdown of Kerr BHs, but they do not exhibit ergoregion instability. The viscosity in the membrane paradigm is modified to $η= \frac{c^3}{16πG}\tanh\left({\hbar |ω| \over 4 k T_{\rm H}}\right)$, only approaching General Relativistic value at high frequencies.
description: 15 pages, 5 figures, appendixes added
Phaon camerunensis Sjostedt 1900
Creators: name: Legrand, Jean
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Phaon
Phaon camerunensis

description: Phaon camerunensis Sjöstedt, 1900
 Bihang till Kongl. Svenska Vetenskaps-Akademiens Handlingar 25 (4) (2): 48; ♁ ♀, Cameroun; types in NRS.
Legrand, 1985c: 349 (larve); Legrand & Girard, 1992: 17 (citations de Guinée).
MATÉRIEL EXAMINÉ. — Gba riv., Gbakoré, 1 ♁, 1-VI-1991.
DESCRIPTION. — Espèce de grande taille (L. = 70 mm); ailes munies d’un important ptérostigma.
 ÉCOLOGIE. — Ce Phaon fréquente les petits cours d’eau forestiers. On le rencontre dans les zones de clairières où croît une importante végétation aquatique herbacée dans laquelle la femelle dépose ses oeufs (Legrand 1985c).
DISTRIBUTION. — Côte d’Ivoire, Cameroun, Gabon, Guinée, Liberia, Somalie (?).
description: Published as part of Legrand, Jean, 2003, Les Odonates du Nimba et de sa région, pp. 231-310 in Mémoires du Muséum national d'Histoire naturelle 190 on page 249
Dimension Theory of Graphs and Networks
Creators: name: Nowotny, Thomas
name: Requardt, Manfred
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: Functional Analysis (math.FA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Starting from the working hypothesis that both physics and the corresponding mathematics have to be described by means of discrete concepts on the Planck-scale, one of the many problems one has to face in this enterprise is to find the discrete protoforms of the building blocks of continuum physics and mathematics. A core concept is the notion of dimension. In the following we develop such a notion for irregular structures like (large) graphs and networks and derive a number of its properties. Among other things we show its stability under a wide class of perturbations which is important if one has 'dimensional phase transitions' in mind. Furthermore we systematically construct graphs with almost arbitrary 'fractal dimension' which may be of some use in the context of 'dimensional renormalization' or statistical mechanics on irregular sets.
description: 20 pages, 7 figures, LaTex2e, uses amsmath, amsfonts, amssymb, latexsym, epsfig
Phaon iridipennis
Creators: name: Legrand, Jean
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Phaon
Phaon iridipennis

description: Phaon iridipennis (Burmeister)
 Calopteryx iridipennis Burmeister, 1839, Handbuch der Entomologie 2 (II) (2): 827; ♁, Port Natal (Durban, Natal); holotype in MLUH. Aguesse, 1968: 526; Legrand, 1983: 153; Legrand, 1985c: 353 (larve): Legrand & Girard, 1992: 9, 17 (citations de Guinée).
MATÉRIEL EXAMINÉ. — Gba riv. Gbakoré, 450 m: 1 ♁, 14-V-1991; 4 ♁, 1-VI-1991. Marais de Gouéla, 450 m, 1 ♁, 7-VI-1991.
 DESCRIPTION. — Espèce un peu plus petite (L. = 65 mm) que camerunensis; ailes avec un ptérostigma très réduit, voire absent.
 ÉCOLOGIE. — Présente dans toute l’Afrique intertropicale, cette espèce paraît localisée aux cours d’eau dont les berges sont bien dégagées. Contrairement à l’espèce précédente elle ne semble pas remonter les cours d’eau aussi haut que Ph. camerunensis même si on peut les voir presque ensemble (à Gbakoré sur le Gba).
DISTRIBUTION. — Répandue dans toute l’Afrique tropicale.
description: Published as part of Legrand, Jean, 2003, Les Odonates du Nimba et de sa région, pp. 231-310 in Mémoires du Muséum national d'Histoire naturelle 190 on pages 249-250
Suppressing cosmic variance with paired-and-fixed cosmological simulations: average properties and covariances of dark matter clustering statistics
Creators: name: Klypin, Anatoly
name: Prada, Francisco
name: Byun, Joyce
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Making cosmological inferences from the observed galaxy clustering requires accurate predictions for the mean clustering statistics and their covariances. Those are affected by cosmic variance -- the statistical noise due to the finite number of harmonics. The cosmic variance can be suppressed by fixing the amplitudes of the harmonics instead of drawing them from a Gaussian distribution predicted by the inflation models. Initial realizations also can be generated in pairs with 180 degrees flipped phases to further reduce the variance. Here, we compare the consequences of using paired-and-fixed vs Gaussian initial conditions on the average dark matter clustering and covariance matrices predicted from N-body simulations. As in previous studies, we find no measurable differences between paired-and-fixed and Gaussian simulations for the average density distribution function, power spectrum and bispectrum. Yet, the covariances from paired-and-fixed simulations are suppressed in a complicated scale- and redshift-dependent way. The situation is particularly problematic on the scales of Baryon Acoustic Oscillations where the covariance matrix of the power spectrum is lower by only 20% compared to the Gaussian realizations, implying that there is not much of a reduction of the cosmic variance. The non-trivial suppression, combined with the fact that paired-and-fixed covariances are noisier than from Gaussian simulations, suggests that there is no path towards obtaining accurate covariance matrices from paired-and-fixed simulations. Because the covariances are crucial for the observational estimates of galaxy clustering statistics and cosmological parameters, paired-and-fixed simulations, though useful for some applications, cannot be used for the production of mock galaxy catalogs.
description: Submitted to MNRAS
Pitfalls and Protocols in Practice of Manufacturing Data Science
Creators: name: Lee, Chia-Yen
name: Chien, Chen-Fu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The practical application of machine learning and data science (ML/DS) techniques present a range of procedural issues to be examined and resolve including those relating to the data issues, methodologies, assumptions, and applicable conditions. Each of these issues can present difficulties in practice; particularly, associated with the manufacturing characteristics and domain knowledge. The purpose of this paper is to highlight some of the pitfalls that have been identified in real manufacturing application under each of these headings and to suggest protocols to avoid the pitfalls and guide the practical applications of the ML/DS methodologies from predictive analytics to prescriptive analytics.
Induced idleness leads to deterministic heavy traffic limits for queue-based random-access algorithms
Creators: name: Castiel, Eyal
name: Borst, Sem
name: Miclo, Laurent
name: Simatos, Florian
name: Whiting, Philip
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K25 (primary), 60K35 (secondary)

description: We examine a queue-based random-access algorithm where activation and deactivation rates are adapted as functions of queue lengths. We establish its heavy traffic behavior on a complete interference graph, which turns out to be highly nonstandard in two respects: (1) the scaling depends on some parameter of the algorithm and is not the $N/N^2$ scaling usually found in functional central limit theorems; (2) the heavy traffic limit is deterministic. We discuss how this nonstandard behavior arises from the idleness induced by the distributed nature of the algorithm. In order to prove our main result, we developed a new method for obtaining a fully coupled stochastic averaging principle.
description: 40 pages
Dual group actions on C*-algebras and their description by Hilbert extensions
Creators: name: Baumgaertel, H.
name: Lledo, F.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47L65, 22D25, 46L40 (primary), 81T05 (secondary)

description: Given a C*-algebra $A$, a discrete abelian group $X$ and a homomorphism $Θ: X\to$ Out$A$ defining the dual action group $Γ\subset$ aut$A$, the paper contains results on existence and characterization of Hilbert $\{A,Γ\}$, where the action is given by $\hat{X}$. They are stated at the (abstract) C*-level and can therefore be considered as a refinement of the extension results given for von Neumann algebras for example by Jones [Mem.Am.Math.Soc. 28 Nr 237 (1980)] or Sutherland [Publ.Res.Inst.Math.Sci. 16 (1980) 135]. A Hilbert extension exists iff there is a generalized 2-cocycle. These results generalize those in [Commun.Math.Phys. 15 (1969) 173], which are formulated in the context of superselection theory, where it is assumed that the algebra $A$ has a trivial center, i.e. $Z=C1$. In particular the well-known ``outer characterization'' of the second cohomology $H^2(X,{\cal U}(Z),α_X)$ can be reformulated: there is a bijection to the set of all $A$-module isomorphy classes of Hilbert extensions. Finally, a Hilbert space representation (due to Sutherland in the von Neumann case) is mentioned. The C*-norm of the Hilbert extension is expressed in terms of the norm of this representation and it is linked to the so-called regular representation appearing in superselection theory.
description: 14 pages, Latex
Spin-orbit coupled bosons interacting in a two-dimensional harmonic trap
Creators: name: Mujal, Pere
name: Polls, Artur
name: Juliá-Díaz, Bruno
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A system of bosons in a two-dimensional harmonic trap in the presence of Rashba-type spin-orbit coupling is investigated. An analytic treatment of the ground state of a single atom in the weak-coupling regime is presented and used as a basis for a perturbation theory in the interacting two-boson system. The numerical diagonalization of both the single-particle and the two-boson Hamiltonian matrices allows us to go beyond those approximations and obtain not only the ground state, but also the low-energy spectra and the different energy contributions separately. We show that the expectation value of the spin-orbit term is related to the expectation value of $\hatσ_z \hat{L}_z$ for the eigenstates of the system, regardless of the trapping potential. The low-energy states of the repulsively interacting two-boson system are characterized. With the presence of a sufficiently strong interaction and spin-orbit coupling strength, there is a direct energy-level crossing in the ground state of the system between states of different $J_z$, the third component of the total angular momentum, that changes its structure. This is reflected in a discontinuity in the different energy terms and it is signaled in the spatial density of the system.
Sapho Selys 1853
Creators: name: Legrand, Jean
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Sapho

description: Genre SAPHO Sélys, 1853
 Bulletin de l’Académie royale de Belgique 20 (Annexe): 21 [idem sep.].
Bridges, 1991; Pinhey, 1962 (Catalogue); Legrand, 1977 (larves); Tsuda, 1991 (distribution).
 Espèce type: Agrion ciliata Fabricius, 1781.
Les espèces appartenant à ce genre sont de taille variable, généralement grande (L. = 55 à 70 mm), corps massif; ailes très larges, au moins partiellement noires chez le mâle, enfumées chez la femelle.
description: Published as part of Legrand, Jean, 2003, Les Odonates du Nimba et de sa région, pp. 231-310 in Mémoires du Muséum national d'Histoire naturelle 190 on page 250
Calibrations and null-Lagrangians for nonlocal perimeters and an application to the viscosity theory
Creators: name: Cabre, Xavier
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: For nonnegative even kernels $K$, we consider the $K$-nonlocal perimeter functional acting on sets. Assuming the existence of a foliation of space made of solutions of the associated $K$-nonlocal mean curvature equation in an open set $Ω\subset\mathbb{R}^n$, we built a calibration for the nonlocal perimeter inside $Ω\subset\mathbb{R}^n$. The calibrating functional is a nonlocal null-Lagrangian. As a consequence, we conclude the minimality in $Ω$ of each leaf of the foliation. As an application, we prove the minimality of $K$-nonlocal minimal graphs and that they are the unique minimizers subject to their own exterior data. As a second application of the calibration, we give a simple proof of an important result from the seminal paper of Caffarelli, Roquejoffre, and Savin, stating that minimizers of the fractional perimeter are viscosity solutions.
description: To appear in Annali di Matematica Pura ed Applicata
Additional file 2 of CDK6-PI3K signaling axis is an efficient target for attenuating ABCB1/P-gp mediated multi-drug resistance (MDR) in cancer cells
Creators: name: Zhang, Lei
name: Li, Yidong
name: Hu, Chaohua
name: Chen, Yangmin
name: Chen, Zhuo
name: Chen, Zhe-Sheng
name: Zhang, Jian-Ye
name: Fang, Shuo
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Hematology
subject: Virology

description: Additional file 2: Fig. S2. Protein-protein interaction of the proteins which are most correlated with endocrine resistance.
title: Governance und Gewalt
title: eine Untersuchung zur Krise des Regierens in Pakistan am Fall Belutschistan
titleType: Subtitle
Creators: name: Wilke, Boris
Publisher: name: Freie Universität Berlin
Year: 2009
Subjects: subject: 300 Sozialwissenschaften::350 Öffentliche Verwaltung, Militärwissenschaft::350 Öffentliche Verwaltung, Militärwissenschaft
subject: 900 Geschichte und Geografie::950 Geschichte Asiens

description: Diese Studie befasst sich mit der Frage, welche Auswirkungen die Transformation des Staates auf das Regieren hat. Zwar kann von einer allseitigen Schwächung staatlicher Autorität oder von „Staatszerfall“ nicht die Rede sein, doch ist in vielen Fällen unklar, in welcher Form unter veränderten Bedingungen regiert werden soll. Diese Problematik wird am Fallbeispiel Belutschistan (Pakistan) auf die Bereitstellung von Sicherheit zugespitzt. Dabei kommt die Untersuchung zu drei zentralen Ergebnissen: (1) In Pakistan haben politische Krisen nicht zum Rückzug des Staates geführt, sondern zu dessen Versuch, eine ökonomisch unterentwickelte Provinz stärker administrativ zu durchdringen und ihre Inwertsetzung und ökonomische Integration zu forcieren. (2) Dieser Versuch der Krisenbewältigung ging einher mit der Umstellung von konventionellen zu zentralisierten Formen von Governance; er wurde nicht von nichtstaatlichen Akteuren, internationalen Agenturen oder der internationalen Staatengemeinschaft initiiert, sondern von der pakistanischen Regierung selbst. (3) Die Umstellung von konventioneller zu zentralisierter Governance führte nicht zur Verregelung, sondern zur gewaltförmigen Eskalation bestehender Konfliktlagen.
description: Taking the province of Balochistan as an example, this paper traces the causes of the transformation of statehood in Pakistan back to the 1970s and analyses its consequences for modern governance in the future. It argues that weak institutions amid rapid social change rather than “state failure” lie at the root of Pakistan’s predicament. As the case of Balochistan aptly demonstrates, the Pakistani state’s reaction to crisis has not been retreat, but reform and centralisation of rule. Since the governmentalities of rulers and ruled are incompatible, these policies have led to an escalation of crisis and conflict.
Deliberating beyond evidence: lessons from Integrated Assessment Modelling
Creators: name: Vecchione, Elisa
Publisher: name: Freie Universität Berlin
Year: 2012
Subjects: subject: Integrated Assessment Modelling
subject: evidence
subject: positioning
subject: deliberation
subject: 300 Sozialwissenschaften::320 Politikwissenschaft
subject: 300 Sozialwissenschaften::330 Wirtschaft::333 Boden- und Energiewirtschaft
subject: 300 Sozialwissenschaften::350 Öffentliche Verwaltung, Militärwissenschaft::354 Verwaltung von Wirtschaft und Umwelt

description: The premises of this paper rely on associating policy inertia toward action on climate change with the inadequacy of the classical ‘liability culture’ of evidence-based policy-making to deal with this global environmental challenge. To provide support to this hypothesis, the following discussion analyses the technical properties and the current policy use of Integrated Assessment Modelling (IAM) of economic-climate interactions. The paper contends that IAM is still not clarified enough as far as its potential for information- production in the framework of policy making processes is concerned, and that this fact is symptomatic of the current inability of societies to undertake the challenge of sustainability. The paper explains the reasons for this disconnect and proposes solutions in the form of a renovated framework of deliberative policy-making.
Design Justice 2025 Group Presentations Zine
Creators: name: Priego, Ernesto
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 460806
subject: Human-computer interaction

description: This zine works as a souvenir of the three sessions of group student presentations within the INM317 Design Justice module (2024-2025), MSc Human-Computer Interaction Design, City St George's, University of London, led by Ernesto Priego. This deposit includes three files: an A4 two-page print-ready PDF of the zine; an A4 eight-page PDF for viewing the zine online; and a text file with instructions on how to print and fold the print-ready zine.
A Genetic Approach to Gradient-Free Kinodynamic Planning in Uneven Terrains
Creators: name: Jerome, Otobong
name: Klimchik, Alexandr
name: Maloletov, Alexander
name: Kulathunga, Geesara
Publisher: name: arXiv
Year: 2025
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper proposes a genetic algorithm-based kinodynamic planning algorithm (GAKD) for car-like vehicles navigating uneven terrains modeled as triangular meshes. The algorithm's distinct feature is trajectory optimization over a fixed-length receding horizon using a genetic algorithm with heuristic-based mutation, ensuring the vehicle's controls remain within its valid operational range. By addressing challenges posed by uneven terrain meshes, such as changing face normals, GAKD offers a practical solution for path planning in complex environments. Comparative evaluations against Model Predictive Path Integral (MPPI) and log-MPPI methods show that GAKD achieves up to 20 percent improvement in traversability cost while maintaining comparable path length. These results demonstrate GAKD's potential in improving vehicle navigation on challenging terrains.
Dynamics and holographic discreteness of tachyonic inflation
Creators: name: Wang, Bin
name: Abdalla, Elcio
name: Su, Ru-Keng
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider issues related to tachyonic inflation with inverse-power-law potential. We find the solution of the evolution equations in the slow roll limit in FRW as well as in the brane cosmology. Using the holographic entropy bound, we estimate the quantum-gravitational discreteness of tachyonic inflation perturbations.
description: 10 pages, Latex file