cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Fibromuscular dysplasia of mesenteric arteries: a rare cause of multiple bowel resections—a case report and literature review
Creators: name: Du, Shuwen
name: Yang, Shanbing
name: Jia, Kangmei
name: Du, Peng
name: Zhang, Limin
name: Wang, Jiheng
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: Hematology

description: Additional file 1. Figure 1-6 The small-intestine stimulation enhanced computer tomography (CT) examination revealed an unevenly thickened and strengthened wall of the sigmoid colon, splenomegaly, and portal hypertension. Figure 7-9. Colonoscopy revealed two ulcers in the small intestinal mucosa, multiple ulcers and erosions throughout the colon, and normal mucosa between the ulcers. Figure 10-11. The specimen of the diseased ileum (approximately 10 cm) after the enterectomy.Figure 12. Postoperative histopathological examination showed inflammation of the arterioles of the intestinal wall, obvious stenosis or even occlusion of the arterial vascular lumen, proliferation of arterial smooth muscle and destruction of elastic fibres. Figure 13-14. Re-examination of the electronic colonoscopy after surgery showed no signs of recurrence. Figure 15-16. Re-examination of the CT after surgery showed splenomegaly still existed. Figure 17. The patients underwent abdomen CT revealed that her renal vessels were not involved.
Schrödinger's Ballot: Quantum Information and the Violation of Arrow's Impossibility Theorem
Creators: name: Sun, Xin
name: He, Feifei
name: Kulicki, Piotr
name: Sopek, Mirek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: In this paper we study Arrow's Impossibility Theorem in the quantum setting. Our work is based on the work of Bao and Halpern, in which it is proved that the quantum analogue of Arrow's Impossibility Theorem is not valid. However, we feel unsatisfied about the proof presented there. Moreover, the definition of Quantum Independence of Irrelevant Alternatives (QIIA) seems not appropriate to us. In this paper, we give a better definition of QIIA, which properly captures the idea of the independence of irrelevant alternatives, and a detailed proof of the violation of Arrow's Impossibility Theorem in the quantum setting with the modified definition.
description: 11 pages
Circle-actions, quantum cohomology, and the Fukaya category of Fano toric varieties
Creators: name: Ritter, Alexander F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D

description: We define a class of non-compact Fano toric manifolds, called admissible toric manifolds, for which Floer theory and quantum cohomology are defined. The class includes Fano toric negative line bundles, and it allows blow-ups along fixed point sets. We prove closed-string mirror symmetry for this class of manifolds: the Jacobian ring of the superpotential is the symplectic cohomology (not the quantum cohomology). Moreover, SH(M) is obtained from QH(M) by localizing at the toric divisors. We give explicit presentations of SH(M) and QH(M), using ideas of Batyrev, McDuff and Tolman. Assuming that the superpotential is Morse (or a milder semisimplicity assumption), we prove that the wrapped Fukaya category for this class of manifolds satisfies the toric generation criterion, i.e. is split-generated by the natural Lagrangian torus fibres of the moment map with suitable holonomies. In particular, the wrapped category is compactly generated and cohomologically finite. The proof uses a deformation argument, via a generic generation theorem and an argument about continuity of eigenspaces. We also prove that for any closed Fano toric manifold, if the superpotential is Morse (or a milder semisimplicity assumption) then the Fukaya category satisfies the toric generation criterion. The key ingredients are non-vanishing results for the open-closed string map, using tools from the paper by Ritter-Smith (we also prove a conjecture from that paper that any monotone toric negative line bundle contains a non-displaceable monotone Lagrangian torus). We also need to extend the class of Hamiltonians for which the maximum principle holds for symplectic manifolds conical at infinity, thus extending the class of Hamiltonian circle actions for which invertible elements can be constructed in SH(M).
description: 71 pages (51 pages + appendices). Version 3 (updated compared to the published version): fixed a typo in Theorem 1.5(2), made notation consistent in (1.6) and (1.7), fixed SH computation in Cor 4.16, added two footnotes: one for Lemma 1.6, and one in Section 3.2
Culebrilla de las macetas – Ramphotyphlops braminus (Daudin, 1803)
Creators: name: Mateo, José Antonio
Publisher: name: Salvador Milla, Alfredo
Year: 2013

description: Reptiles - Orden Squamata - Familia Typhlopidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/.
description: A comprehensive review of the natural history of the Brahminy blind snake Ramphotyphlops braminus in Spain.
Precision Measurement of the Decay Rate of 7Be in Host Materials
Creators: name: Nir-El, Y.
name: Haquin, G.
name: Yungreiss, Z.
name: Hass, M.
name: Goldring, G.
name: Chamoli, S. K.
name: Singh, B. S. Nara
name: Lakshmi, S.
name: Koester, U.
name: Champault, N.
name: Dorsival, A.
name: Georgiev, G.
name: Fedoseyev, V. N.
name: Marsh, B. A.
name: Schumann, D.
name: Heidenreich, G.
name: Teichmann, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A controlled and precise determination of the cross-sections of the fusion reactions 7Be(p,gamma)8B and 3He(4He,gamma)7Be, which play an important role in determining the solar neutrino flux, necessitates the knowledge of a precise value of the electron-capture half-life of 7Be. This half-life may depend on the material hosting the 7Be atoms via small modifications of the electron density around the 7Be nucleus. In this brief communication we report on the measurement of 7Be implanted in four materials: copper, aluminum, sapphire and PVC. The four results are consistent with a null host dependence within two standard deviations and their weighted average of 53.236(39)d agrees very well with the adopted value in the literature, 53.22(6)d. The present results may exhibit a slight (0.22%) increase of the half-life at room temperature for metals compared to insulators that requires further studies.
description: 4 pages, 4 figures. Accepted for publication in Phys. Rev. C (Rapid Communications)
Stability and singularities of relative hypersurfaces
Creators: name: Barja, M. A.
name: Stoppino, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study relative hypersurfaces over curves, and prove an instability condition for the fibres. This gives an upper bound on the log canonical threshold of the relative hypersurface. We compare these results with the information that can be derived from Nakayama's Zariski decomposition of effective divisors on relative projective bundles.
description: 26 pages, 1 figure, revised version with minor changes
Águila perdicera – Aquila fasciata Vieillot, 1822
Creators: name: Ontiveros, Diego
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2016

description: Aves - Orden Falconiformes - Familia Accipitridae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 3-08-2007; 13-02-2008; 18-01-2010; 1-07-2014
description: A comprehensive review of the natural history of the Bonelli's Eagle Aquila fasciata in Spain.
Fast Privacy Amplificationon GPUs
Creators: name: Bosshard, Nico
name: Christen, Roland
name: Hänggi, Esther
name: Hofstetter, Jörg
Publisher: name: Zenodo
Year: 2021
Subjects: Quantenkryptographie
Kryptographie
GPU
IT-Security

description: Quantum key distribution protocols typically proceed in several phases: in a first phase, the honest parties exchange signals over the quantum channel. Then, there is a classical post-processing phase, where the honest parties communicate over the classical authentic channel to discard superfluous signals (sifting), estimate the error in the communication channel and the amount of eavesdropping (parameter estimation), correct the errors in their raw key (information reconciliation) and finally create a shorter but highly secure key (privacy amplification). This post-processing phase is often the limiting factor for the secure key rate of quantum key distribution implementations. Significant research effort is therefore made to find better algorithms and create better implementations. Here we propose a fast implementation of privacy amplification. The currently known algorithm with the best asymptotic time-complexity is modified Toeplitz hashing, running at O(n log n) using Fast-Fourier-Transform for fast matrix multiplication. We implement this algorithm on common GPUs using a very efficient and highly parallel CUDA algorithm. For large block sizes of approximately 10^8 bits - needed to limit the finite key effects - we achieve an input throughput of 3.7 Gbit/s with a dynamic Toeplitz seed and 5.7 Gbit/s using a fixed seed. This is several times faster than previously known implementations and can increase the total key-rate of practical quantum key distribution systems significantly.
description: + ID der Publikation: hslu_81945 + Art des Beitrages: Poster-Präsentation + Sprache: Englisch + Letzte Aktualisierung: 2021-02-19 15:47:57
Semimetal to semimetal charge density wave transition in 1T-TiSe$_2$
Creators: name: Li, G.
name: Hu, W. Z.
name: Qian, D.
name: Hsieh, D.
name: Hasan, M. Z.
name: Morosan, E.
name: Cava, R. J.
name: Wang, N. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report an infrared study on 1$T$-TiSe$_2$, the parent compound of the newly discovered superconductor Cu$_x$TiSe$_2$. Previous studies of this compound have not conclusively resolved whether it is a semimetal or a semiconductor: information that is important in determining the origin of its unconventional CDW transition. Here we present optical spectroscopy results that clearly reveal that the compound is metallic in both the high-temperature normal phase and the low-temperature CDW phase. The carrier scattering rate is dramatically different in the normal and CDW phases and the carrier density is found to change with temperature. We conclude that the observed properties can be explained within the scenario of an Overhauser-type CDW mechanism.
description: 4 pages, 4 pages
Origins of Bulk Viscosity at RHIC
Creators: name: Paech, Kerstin
name: Pratt, Scott
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A variety of physical phenomena can lead to viscous effects. Several sources of shear and bulk viscosity are reviewed with an emphasis on the bulk viscosity associated with chiral restoration and with chemical non-equilibrium. We show that in a mean-field treatment of the limiting case of a second order phase transition, the bulk viscosity peaks in a singularity at the critical point.
description: submitted to PRC
Dark matter annihilation from intermediate-mass black holes: Contribution to the extragalactic gamma-ray background
Creators: name: Horiuchi, Shunsaku
name: Ando, Shin'ichiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate contributions to the extragalactic gamma-ray background (EGB) due to neutralino dark matter (DM) pair-annihilation into photons, from DM density enhancements (minispikes) surrounding intermediate-mass black holes (IMBHs). We focus on two IMBH formation scenarios; our conservative scenario where IMBHs are remnants of Population-III stars, and our optimistic scenario here IMBHs are formed in protogalactic disks. In both scenarios, their formation in pregalactic halos at high redshift lead to the formation of minispikes that are bright sources of gamma-ray photons. Taking into account minispike depletion processes, we only sum contributions from a cosmological distribution of IMBHs with maintained minispikes. Our conservative scenario (BH mass 10^2 M_sun with a r^{-3/2} minispike) predicts gamma-ray fluxes that are an order larger than the equivalent flux, using the same DM parameters (mass 100 GeV and annihilation cross-section 3 \times 10^{-26} cm^3 s^{-1}, from the host halo without IMBH minispikes. Our optimistic scenario (BH mass 10^5 M_sun with a r^{-7/3} minispike) predicts fluxes that are three orders larger, that can reach current EGB observations taken by EGRET (DM parameters as above). This fact may serve interesting consequences for constraining DM parameters and elucidating the true nature of IMBHs. Additionally, we determine the spectra of DM annihilation into monochromatic gamma-rays, and show that its flux can be within observational range of GLAST, providing a potential `smoking-gun' signature of DM.
description: 11 pages, 6 figures, 2 tables, accepted for publication in Phys.Rev.D
Gravitational lensing by a black hole in Poincar{é} gauge theory of gravity
Creators: name: Zamani, Saboura Sadat
name: Akhshabi, Siamak
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using a recently found black hole solution in the framework of the Poincar{é} gauge theory of gravity, we study gravitational lensing for a system where the lens is a static spherically symmetric black hole. By analyzing the equations of motion for light rays in a space-time with torsion, we derive the deflection angle as the light emitted from a source pass through near the black hole and numerically solve the resulting integral. We also study the effects of torsion on the position of images. The results show that the presence of torsion slightly alters both the deflection angle and position of images in this setup.
description: 21 pages, 6 figures. Accepted for publication in MPLA
Lower branch coherent states in shear flows: transition and control
Creators: name: Wang, Jue
name: Gibson, John
name: Waleffe, Fabian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Lower branch coherent states in plane Couette flow have an asymptotic structure that consists of O(1) streaks, $O(R^{-1})$ streamwise rolls and a weak sinusoidal wave that develops a critical layer, for large Reynolds number $R$. Higher harmonics become negligible. These unstable lower branch states appear to have a single unstable eigenvalue at all Reynolds numbers. These results suggests that the lower branch coherent states control transition to turbulence and that they may be promising targets for new turbulence prevention strategies.
description: Submitted to PRL
Ruiseñor pechizazul – Luscinia svecica (Linnaeus, 1758)
Creators: name: Arizaga, Juan
name: García, Javier
name: Suárez-Seoane, Susana
name: Salvador Milla, Alfredo
Publisher: name: CSIC - Museo Nacional de Ciencias Naturales (MNCN)
Year: 2016

description: Aves - Orden Passeriformes - Familia Turdidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 23-02-2011
description: A comprehensive review of the natural history of the Bluethroat Luscinia svecica in Spain.
BRST approach to Lagrangian formulation for mixed-symmetry fermionic higher-spin fields
Creators: name: Moshin, P. Yu.
name: Reshetnyak, A. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a Lagrangian description of irreducible half-integer higher-spin representations of the Poincare group with the corresponding Young tableaux having two rows, on a basis of the BRST approach. Starting with a description of fermionic higher-spin fields in a flat space of any dimension in terms of an auxiliary Fock space, we realize a conversion of the initial operator constraint system (constructed with respect to the relations extracting irreducible Poincare-group representations) into a first-class constraint system. For this purpose, we find auxiliary representations of the constraint subsuperalgebra containing the subsystem of second-class constraints in terms of Verma modules. We propose a universal procedure of constructing gauge-invariant Lagrangians with reducible gauge symmetries describing the dynamics of both massless and massive fermionic fields of any spin. No off-shell constraints for the fields and gauge parameters are used from the very beginning. It is shown that the space of BRST cohomologies with a vanishing ghost number is determined only by the constraints corresponding to an irreducible Poincare-group representation. To illustrate the general construction, we obtain a Lagrangian description of fermionic fields with generalized spin (3/2,1/2) and (3/2,3/2) on a flat background containing the complete set of auxiliary fields and gauge symmetries.
description: 41 pages, no figures, corrected typos, updated introduction, sections 5, 7.1, 7.2 with examples, conclusion with all basic results unchanged, corrected formulae (3.27), (7.138), (7.140), added dimensional reduction part with formulae (5.34)-(5.48), (7.8)-(7.10), (7.131)-(7.136), (7.143)-(7.164), added Refs. 52, 53, 54, examples for massive fields developed by 2 ways
title: Mucam, museo canario de la moda
Creators: name: Juli Gil, Carlos
Publisher: name: TU Wien
Year: 2024
Subjects: subject: Fashion Hub Museum Museumsarchitektur
subject: Fashion Hub Museum Exhibition Architecture

description: Diese Arbeit konzentriert sich auf den Entwurf eines Museums für kanarische Mode in Santa Cruz de Tenerife. Das Projekt gliedert sich in zwei Hauptteile: eine theoretische Forschung und den architektonischen Entwurf.Der erste Teil beinhaltet eine Analyse der Beziehung zwischen Mode, Kultur und Architektur. Es wird die Bedeutung der Mode als kulturelles Phänomen und ihre Darstellung durch Architektur hervorgehoben. Es werden zwei bestehende Modemuseen und bedeutende Ereignisse im Bereich der Mode untersucht und ihre Wechselwirkung mit Architektur und Räumen analysiert. Zudem wird die kanarische Mode durch eine kurze Analyse kanarischer Designer kontextualisiert.Im zweiten Teil wird das Design des Modemuseums vorgestellt. Dieses Design zielt nicht nur darauf ab, die Geschichte und den Geist der kanarischen Mode widerzuspiegeln, sondern auch sich harmonisch in das urbane und kulturelle Umfeld des Stadtviertels Los Llanos in Santa Cruz de Tenerife, Spanien, zu integrieren. Das Projekt schlägt einen innovativen Ansatz in der Nutzung von Räumen, Materialien und Strukturen vor, wobei Funktionalität, Ästhetik und die Verbindung zur lokalen Identität im Vordergrund stehen.
description: This thesis focuses on the design of a museum dedicated to canarian fashion in Santa Cruz de Tenerife. The project is divided into two main parts: theoretical research and architectural design.The first part conducts a comprehensive analysis of the relationship between fashion, culture, and architecture. It highlights the significance of fashion as a cultural phenomenon and its representation through architecture. Existing fashion museums and significant events in the fashion field are examined, analysing their interaction with architecture and spaces. In addition, Canarian fashion is contextualized through a brief analysis of designers from the region.The second part presents the design of the fashion museum. This design aims not only to reflect the history and spirit of Canarian fashion but also to harmoniously integrate into the urban and cultural environment of the Los Llanos neighbourhood in Santa Cruz de Tenerife, Spain. The project proposes an innovative approach in the use of spaces, materials, and structures, prioritising functionality, aesthetics, and connection to local identity.
Multivariate integration in C^\infty([0,1]^d) is not strongly tractable
Creators: name: Wojtaszczyk, Jakub Onufry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65D30

description: It has long been known that the multivariate integration problem for the unit ball in $C^r([0,1]^d)$ is intractable for fixed finite $r$. H. Woźniakowski has recently conjectured that this is true even if $r=\infty$. This paper establishes a partial result in this direction. We prove that the multivariate integration problem, for infinitely differential functions all of whose variables are bounded by one, is not strongly tractable.
description: 6 pages
Cernícalo vulgar – Falco tinnunculus Linnaeus, 1758
Creators: name: Martínez-Padilla, Jesús
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2016

description: Aves - Orden Falconiformes - Familia Falconidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 10-05-2006; 29-01-2007; 28-02-2008; 13-04-2016
description: A comprehensive review of the natural history of the Kestrel Falco tinnunculus in Spain.
ReViVD: Exploration and Filtering of Trajectories in an Immersive Environment using 3D Shapes
Creators: name: Homps, François
name: Beugin, Yohan
name: Vuillemot, Romain
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present ReViVD, a tool for exploring and filtering large trajectory-based datasets using virtual reality. ReViVD's novelty lies in using simple 3D shapes -- such as cuboids, spheres and cylinders -- as queries for users to select and filter groups of trajectories. Building on this simple paradigm, more complex queries can be created by combining previously made selection groups through a system of user-created Boolean operations. We demonstrate the use of ReViVD in different application domains, from GPS position tracking to simulated data (e.g., turbulent particle flows and traffic simulation). Our results show the ease of use and expressiveness of the 3D geometric shapes in a broad range of exploratory tasks. ReViVD was found to be particularly useful for progressively refining selections to isolate outlying behaviors. It also acts as a powerful communication tool for conveying the structure of normally abstract datasets to an audience.
description: Accepted at IEEE Conference on Virtual Reality and 3D User Interfaces (VR) 2020
Feature Selection for Functional Data
Creators: name: Fraiman, Ricardo
name: Gimenez, Yanina
name: Svarc, Marcela
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62H30, 62H25, 62J05

description: In this paper we address the problem of feature selection when the data is functional, we study several statistical procedures including classification, regression and principal components. One advantage of the blinding procedure is that it is very flexible since the features are defined by a set of functions, relevant to the problem being studied, proposed by the user. Our method is consistent under a set of quite general assumptions, and produces good results with the real data examples that we analyze.
description: 22 pages, 4 figures
A Deficit of Faint Red Galaxies in the Possible Large-Scale Structures around the RDCS J1252.9-2927 Cluster at z=1.24
Creators: name: Tanaka, Masayuki
name: Kodama, Tadayuki
name: Kajisawa, Masaru
name: Bower, Richard
name: Demarco, Ricardo
name: Finoguenov, Alexis
name: Lidman, Chris
name: Rosati, Piero
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We report a discovery of possible large-scale structures around the RDCS J1252.9-2927 cluster at z=1.24 based on photometric redshifts. We carried out multi-band wide-field imaging with Suprime-Cam on the Subaru Telescope and WFCAM on the United Kingdom Infra-Red Telescope (UKIRT). The distribution of photo-z selected galaxies reveals clumpy structures surrounding the central cluster. We compare the observed structure with an X-ray map and find that two of the four plausible clumps show significant X-ray emissions and one with a marginal detection, which strongly suggest that they are dynamically bound systems. Following the discovery of the possible large-scale structure, we carried out deeper SOFI K_s-band imaging with New Technology Telescope on the four plausible clumps. We construct the optical-to-near-infrared colour-magnitude diagrams of the galaxies in the clumps, and find that the colour-magnitude relation (CMR) of the red galaxies in the clumps is sharply truncated below K_s=22. Interestingly, the main cluster shows a clear relation down to K_s=23 (Lidman et al. 2004). We suggest that galaxies follow the 'environment-dependent down-sizing' evolution. Massive galaxies in high density environments first stop forming stars and become red. Less massive galaxies in less dense environments become red at later times. Based on a few assumptions, we predict that the brightest tip of the CMR appears at z~2.5.
description: 10 pages, 8 figures, accepted for publication in MNRAS
Lagarto verde occidental – Lacerta bilineata Daudin, 1802
Creators: name: Gosá, Alberto
name: Rubio, Xabier
name: Salvador Milla, Alfredo
Publisher: name: Salvador Milla, Alfredo
Year: 2015

description: Reptiles - Orden Squamata - Familia Lacertidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 16-07-2013
description: A comprehensive review of the natural history of the Western green lizard Lacerta bilineata in Spain.
Superflow decay in a toroidal Bose gas: The effect of quantum and thermal fluctuations
Creators: name: Mehdi, Zain
name: Bradley, Ashton S.
name: Hope, Joseph J.
name: Szigeti, Stuart S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically investigate the stochastic decay of persistent currents in a toroidal ultracold atomic superfluid caused by a perturbing barrier. Specifically, we perform detailed three-dimensional simulations to model the experiment of Kumar et al. in [Phys. Rev. A 95 021602 (2017)], which observed a strong temperature dependence in the timescale of superflow decay in an ultracold Bose gas. Our ab initio numerical approach exploits a classical-field framework that includes thermal fluctuations due to interactions between the superfluid and a thermal cloud, as well as the intrinsic quantum fluctuations of the Bose gas. In the low-temperature regime our simulations provide a quantitative description of the experimental decay timescales, improving on previous numerical and analytical approaches. At higher temperatures, our simulations give decay timescales that range over the same orders of magnitude observed in the experiment, however, there are some quantitative discrepancies that are not captured by any of the mechanisms we explore. Our results suggest a need for further experimental and theoretical studies into superflow stability.
Sequential Clustering for Functional Data
Creators: name: Justel, Ana
name: Svarc, Marcela
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This paper presents SeqClusFD, a top-down sequential clustering method for functional data. The clustering algorithm extracts the splitting information either from trajectories, first or second derivatives. Initial partition is based on gap statistic that provides local information to identify the instant with more clustering evidence in trajectories or derivatives. Then functional boxplots allow reconsidering overall allocation and each observation is finally assigned to the cluster where it spends most of the time within whiskers. These local and global searches are repeated recursively until there is no evidence of clustering at any time on trajectories or first and second derivatives. SeqClusFD simultaneously estimates the number of groups and provides data allocation. It also provides valuable information about the most important features that determine cluster structure. Computational aspects have been analyzed and the new method is tested on synthetic and real data sets.
description: 20 pages, 5 figures
Apparent universality of semiclassical gravity in the far field limit
Creators: name: Anderson, Paul R.
name: Fabbri, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The universality of semiclassical gravity is investigated by considering the behavior of the quantities < ϕ^2 > and < {T^a}_b >, along with quantum corrections to the effective Newtonian potential in the far field limits of static spherically symmetric objects ranging from stars in the weak field Newtonian limit to black holes. For scalar fields it is shown that when differences occur they all result from the behavior of a single mode with zero frequency and angular momentum and are thus due to a combination of infrared and s-wave effects. An intriguing combination of similarities and differences between the extreme cases of a Schwarzschild black hole and a star in the weak field Newtonian limit is explained.
description: Title change, some details added, minor changes, acknowledgement added, references added, 7 pages, no figures
Jarabugo – Anaecypris hispanica (Steindachner, 1866)
Creators: name: Salvador Milla, Alfredo
Publisher: name: CSIC - Museo Nacional de Ciencias Naturales (MNCN)
Year: 2017

description: Peces - Orden Cypriniformes - Familia Cyprinidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 10-03-2009; 29-07-2011; 24-05-2012
description: A comprehensive review of the natural history of the jarabugo Anaecypris hispanica in Spain.
การศึกษาวิวัฒนาการของเมืองกับความสัมพันธ์ด้านมิติทางประวัติศาสตร์ กรณีศึกษา : เทศบาลเมืองมหาสารคาม จังหวัดมหาสารคาม
Creators: name: เมธี พิริยการนนท์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ประวัติศาสตร์, การรับรู้ถึงความเป็นชุมชนที่อยู่อาศัยเดียวกัน, มรดกทางวัฒนธรรม, ภูมิทัศน์ทางวัฒนธรรม, ภูมิทัศน์เมืองประวัติศาสตร์

description: ฉบับพิเศษ, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
Basics of inflationary cosmology
Creators: name: Lazarides, George
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The early stages of the universe evolution are discussed according to the hot big bang model and the grand unified theories. The shortcomings of big bang are summarized and their resolution by inflationary cosmology is sketched. Cosmological inflation, the subsequent oscillation and decay of the inflaton field, and the resulting reheating of the universe are studied in some detail. The density perturbations produced by inflation and the temperature fluctuations of the cosmic microwave background radiation are introduced. The hybrid inflationary model is described. Two natural variants of the supersymmetric version of this model which avoid the disaster encountered in its standard realization from the overproduction of magnetic monopoles are presented.
description: 23 pages, uses jpconf.cls, lecture given at Corfu Summer Institute on Elementary Particle Physics (CORFU2005), Corfu, Greece, 4-26 September 2005 (to appear in the proceedings)
การมีส่วนร่วมของชุมชนในการอนุรักษ์และพัฒนาพื้นที่แหล่งประวัติศาสตร์ กรณีศึกษาเมืองฟ้าแดดสงยาง อำเภอกมลาไสย จังหวัดกาฬสินธุ์
Creators: name: วิชาภรณ์ ชำนิกำจร
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การมีส่วนร่วม , แหล่งประวัติศาสตร์

description: ฉบับพิเศษ, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
Muon detection in electron-positron annihilation for muon collider studies
Creators: name: Amapane, N.
name: Antonelli, M.
name: Anulli, F.
name: Ballerini, G.
name: Bandiera, L.
name: Bartosik, N.
name: Bauce, M.
name: Bertolin, A.
name: Biino, C.
name: Garcia, O. R. Blanco-
name: Boscolo, M.
name: Brizzolari, C.
name: Cappati, A.
name: Casaburo, F.
name: Casarsa, M.
name: Cavoto, G.
name: Cesarini, G.
name: Collamati, F.
name: Cotto, G.
name: Curatolo, C.
name: Di Nardo, R.
name: Gonella, F.
name: Hoh, S.
name: Iafrati, M.
name: Iacoangeli, F.
name: Kiani, B.
name: Voti, R. Li
name: Lucchesi, D.
name: Mascagna, V.
name: Paccagnella, A.
name: Pastrone, N.
name: Pazzini, J.
name: Pelliccioni, M.
name: Ponzio, B.
name: Prest, M.
name: Ricci, M.
name: Rosati, S.
name: Rossin, R.
name: Rotondo, M.
name: Planell, O. Sans
name: Sestini, L.
name: Soldani, M.
name: Triossi, A.
name: Vallazza, E.
name: Ventura, S.
name: Zanetti, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The investigation of the energy frontier in physics requires novel concepts for future colliders. The idea of a muon collider is very appealing since it would allow to study particle collisions at up to tens of TeV energy, while offering a cleaner experimental environment with respect to hadronic colliders. One key element in the muon collider design is the low-emittance muon production. Recently,the Low EMittance Muon Accelerator (LEMMA) collaboration has explored the muon pair production close to its kinematic threshold by annihilating 45 GeV positrons with electrons in a low Z material target. In this configuration, muons are emerging from the target with a naturally low-emittance. In this paper we describe the performance of a system, to study this production mechanism, that consists in several segmented absorbers with alternating active layers composed of fast Cherenkov detectors together with a muon identification technique based on this detector. Passive layers were made of tungsten. We collected data corresponding to muon and electron beams produced at the H2 line in the North Area of the European Organization for Nuclear Research (CERN) in September 2018.
การศึกษาทัศนคติและความพึงพอใจของนักศึกษามหาวิทยาลัยราชภัฏสกลนครเกี่ยวกับการนำระบบ E - learning มาใช้ในการจัดการเรียนการสอน
Creators: name: ภัทรดร จั้นวันดี
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ทัศนคติ,ความพึงพอใจ,E-learning ใช้ในการเรียนการสอน

description: ฉบับพิเศษ, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
Curve counting via stable pairs in the derived category
Creators: name: Pandharipande, R.
name: Thomas, R. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14N35

description: For a nonsingular projective 3-fold $X$, we define integer invariants virtually enumerating pairs $(C,D)$ where $C\subset X$ is an embedded curve and $D\subset C$ is a divisor. A virtual class is constructed on the associated moduli space by viewing a pair as an object in the derived category of $X$. The resulting invariants are conjecturally equivalent, after universal transformations, to both the Gromov-Witten and DT theories of $X$. For Calabi-Yau 3-folds, the latter equivalence should be viewed as a wall-crossing formula in the derived category. Several calculations of the new invariants are carried out. In the Fano case, the local contributions of nonsingular embedded curves are found. In the local toric Calabi-Yau case, a completely new form of the topological vertex is described. The virtual enumeration of pairs is closely related to the geometry underlying the BPS state counts of Gopakumar and Vafa. We prove that our integrality predictions for Gromov-Witten invariants agree with the BPS integrality. Conversely, the BPS geometry imposes strong conditions on the enumeration of pairs.
description: Corrected typos and duality error in Proposition 4.6. 47 pages
An extrinsic motor directs chromatin loop formation by cohesin.
Creators: name: Guérin, Thomas M
name: Barrington, Christopher
name: Pobegalov, Georgii
name: Molodtsov, Maxim I
name: Uhlmann, Frank
Publisher: name: The Francis Crick Institute
Year: 2024
Subjects: classificationCode: Gene Expression
subject: Gene Expression
classificationCode: Genetics & Genomics
subject: Genetics & Genomics
classificationCode: Model organisms
subject: Model organisms
classificationCode: Cell Biology
subject: Cell Biology
classificationCode: Cell Cycle & Chromosomes
subject: Cell Cycle & Chromosomes

description: The ring-shaped cohesin complex topologically entraps two DNA molecules to establish sister chromatid cohesion. Cohesin also shapes the interphase chromatin landscape with wide-ranging implications for gene regulation, and cohesin is thought to achieve this by actively extruding DNA loops without topologically entrapping DNA. The 'loop extrusion' hypothesis finds motivation from in vitro observations-whether this process underlies in vivo chromatin loop formation remains untested. Here, using the budding yeast S. cerevisiae, we generate cohesin variants that have lost their ability to extrude DNA loops but retain their ability to topologically entrap DNA. Analysis of these variants suggests that in vivo chromatin loops form independently of loop extrusion. Instead, we find that transcription promotes loop formation, and acts as an extrinsic motor that expands these loops and defines their ultimate positions. Our results necessitate a re-evaluation of the loop extrusion hypothesis. We propose that cohesin, akin to sister chromatid cohesion establishment at replication forks, forms chromatin loops by DNA-DNA capture at places of transcription, thus unifying cohesin's two roles in chromosome segregation and interphase genome organisation.
Performance of the world tin industry : effects of the international tin agreements, 1956-85
Creators: name: Pillay, Subramaniam Sithambaram
Publisher: name: University of British Columbia
Year: 2011

description: The thesis presents an analysis of the influence of the international tin agreements (ITA) on the world tin industry between 1956 to 1985. The ITAs, the first of which came into effect in 1956, were jointly operated by tin producing and consuming countries. The International Tin Council (ITC) used a buffer stock and export controls to maintain the price of tin within a band. This experiment in stabilizing tin prices ended in October 1985, when the ITC was unable to continue its operations because it ran out of financial resources. The study first analyzes the market structure of the world tin industry in some detail. Then an econometric model which attempts to capture the behaviour of supply, demand and price of tin over the 30 year period is constructed. Particular attention was paid to the estimation of the tin production functions for major tin producing countries. In many of these countries, the output of the tin depended not only on the price of tin but also on the policies of the ITC as well as the internal political environment of the country. The model is then used to simulate a scenario in which the ITC does not intervene in the tin market. The differences in the price and revenue levels between the actual and simulated scenario are computed. The simulation results show that the tin agreements succeeded in their objective of reducing the variability of price and producers' revenue. In addition, the average level of price and revenues under the ITC regime was higher than under the non-intervention scenario. In evaluating policy options, it was shown that the establishment of a cartel is not viable in the long term for both economic and political reasons. The recommended policy options include improving access to futures markets, providing better transparency of tin market operations, the establishment of government policies which provide better incentives for tin mining and tin using industries in the major tin producing countries and continued efforts in research and development with the aim of lowering costs of production and increasing the uses for tin.
The eventual paracanonical map of a variety of maximal Albanese dimension
Creators: name: Barja, Miguel Ángel
name: Pardini, Rita
name: Stoppino, Lidia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C20 (14J29, 14J30, 14J35, 14J40)

description: Let $X$ be a smooth complex projective variety such that the Albanese map of $X$ is generically finite onto its image. Here we study the so-called eventual $m$-paracanonical map of $X$ (when $m=1$ we also assume $χ(K_X)>0$). We show that for $m=1$ this map behaves in a similar way to the canonical map of a surface of general type, while it is birational for $m>1$. We also describe it explicitly in several examples.
description: 13 pages
Deciphering the 3-D Orion Nebula-IV: The HH~269 flow emerges from the Orion-S Embedded Molecular Cloud
Creators: name: O'Dell, C. R.
name: Abel, N. P.
name: Ferland, G. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have extended the membership and determined the 3-D structure of the large (0.19 pc) HH~269 sequence of shocks in the Orion Nebula. All of the components lie along a track that is highly tilted to the plane-of-the-sky and emerge from within the Orion-S embedded molecular cloud. Their source is probably either the highly obscured mm 9 source associated with a high N2H+ density core (more likely) or the more distant star COUP 632 (less likely). The former must be located in the Photon Dominated Region (PDR) underlying the ionized surface of the Orion South Cloud, while the latter would be embedded within the cloud. The flows seem to be episodic, with intervals of 1900 to 2600 years or 700 to 2600 years if COUP 632 is the source.
description: 7 pages, 3 figures
Strichartz estimates for the Schrödinger flow on compact Lie groups
Creators: name: Zhang, Yunfeng
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We establish scale-invariant Strichartz estimates for the Schrödinger flow on any compact Lie group equipped with canonical rational metrics. In particular, full Strichartz estimates without loss for some non-rectangular tori are given. The highlights of this paper include estimates for some Weyl type sums defined on rational lattices, different decompositions of the Schrödinger kernel that accommodate different positions of the variable inside the maximal torus relative to the cell walls, and an application of the BGG-Demazure operators or Harish-Chandra's integral formula to the estimate of the difference between characters.
description: Final version
การพัฒนายุทธวิธีการสอนที่ส่งเสริมทักษะการสื่อสารภาษาอังกฤษ เพื่อการโน้มน้าวของผู้เรียนที่มีความหลากหลายทางพหุปัญญา
Creators: name: กรรณิการ์ กาญจันดา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ยุทธวิธีการสอน, การสื่อสารภาษาอังกฤษเพื่อการโน้มน้าว, พหุปัญญา

description: ฉบับพิเศษ, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
Baxter equation for long-range SL(2|1) magnet
Creators: name: Belitsky, A. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a long-range Baxter equation encoding anomalous dimensions of composite operators in the SL(2|1) sector of N = 4 supersymmetric Yang-Mills theory. The formalism is based on the analytical Bethe Ansatz. We compare predictions of the Baxter equations for short operators with available multiloop perturbative calculations.
description: 12 pages, 1 figure
Deterministic and statistical methods for the characterisation of poroelastic media from multi-observation sound absorption measurements
Creators: name: Cuenca, Jacques
name: Göransson, Peter
name: De Ryck, Laurent
name: Lähivaara, Timo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: This paper proposes a framework for the estimation of the transport and elastic properties of open-cell poroelastic media based on sound absorption measurements. The sought properties are the Biot-Johnson-Champoux-Allard model parameters, namely five transport parameters, two elastic properties and the mass density, as well as the sample thickness. The methodology relies on a multi-observation approach, consisting in combining multiple independent measurements into a single dataset, with the aim of over-determining the problem. In the present work, a poroelastic sample is placed in an impedance tube and tested in two loading conditions, namely in a rigid-backing configuration and coupled to a resonant expansion chamber. Given the non-monotonic nature of the experimental data, an incremental parameter estimation procedure is used in order to guide the model parameters towards the global solution without terminating at local minima. A statistical inversion approach is also discussed, providing refined point estimates, uncertainty ranges and parameter correlations. The methodology is applied to the characterisation of a sample of melamine foam and provides estimates of all nine parameters with compact uncertainty ranges. It is shown that the model parameters are retrieved with a lower uncertainty in the multi-observation case, as compared with a single-observation case. The method proposed here does not require prior knowledge of the thickness or any of the properties of the sample, and can be carried out with a standard two-microphone impedance tube.
Correlation induced out-of-phase plasmon in an electron liquid
Creators: name: Kalman, Gabor J.
name: Golden, Kenneth I.
name: Silvestri, Luciano G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive from first principles the existence of a low-frequency plasmon in a strongly coupled three-dimensional homogeneous electron gas (HEG). From its dispersion and its satisfaction of the 3rd frequency sum rule we identify it with the conjectured magnetic excitation in the HEG. This excitation, is maintained by the out-of-phase oscillations of the spin-up and spin-down densities of the electron liquid, but governed solely by the Coulomb interaction between the particles. The frequency square of this mode is proportional to the overlap ($r=0$) (absolute) value of the spin-up/spin-down correlation function, and thus slightly affected by, but not contingent upon the degree of polarization of the electron liquid. We estimate the spectral weight of the mode: it is expected to be governed by electron-electron collision induced spin drag. The spectral weight is manifest in the partial spin-resolved dynamical structure functions and it is proportional to the product of the densities of the two spin components. An independent derivation based on a generalized Feynman Ansatz corroborates our result. The relationship to the recently identified "spin plasmon" excitation is discussed. It is pointed out that a scattering experiment with polarized neutrons or polarized X-rays may be possible avenues to observe equilibrium fluctuations associated with these modes and also to provide information on the spin drag coefficient in the HEG.