cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
LDLS: 3-D Object Segmentation Through Label Diffusion From 2-D Images
Creators: name: Wang, Brian H.
name: Chao, Wei-Lun
name: Wang, Yan
name: Hariharan, Bharath
name: Weinberger, Kilian Q.
name: Campbell, Mark
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Object segmentation in three-dimensional (3-D) point clouds is a critical task for robots capable of 3-D perception. Despite the impressive performance of deep learning-based approaches on object segmentation in 2-D images, deep learning has not been applied nearly as successfully for 3-D point cloud segmentation. Deep networks generally require large amounts of labeled training data, which are readily available for 2-D images but are difficult to produce for 3-D point clouds. In this letter, we present Label Diffusion Lidar Segmentation (LDLS), a novel approach for 3-D point cloud segmentation, which leverages 2-D segmentation of an RGB image from an aligned camera to avoid the need for training on annotated 3-D data. We obtain 2-D segmentation predictions by applying Mask-RCNN to the RGB image, and then link this image to a 3-D lidar point cloud by building a graph of connections among 3-D points and 2-D pixels. This graph then directs a semi-supervised label diffusion process, where the 2-D pixels act as source nodes that diffuse object label information through the 3-D point cloud, resulting in a complete 3-D point cloud segmentation. We conduct empirical studies on the KITTI benchmark dataset and on a mobile robot, demonstrating wide applicability and superior performance of LDLS compared with the previous state of the art in 3-D point cloud segmentation, without any need for either 3-D training data or fine tuning of the 2-D image segmentation model.
description: Accepted for publication in IEEE Robotics and Automation Letters with presentation at IROS 2019
20-year trends of distal femoral, patellar, and proximal tibial fractures: a Danish nationwide cohort study of 60,823 patients
Creators: name: Vestergaard, Veronique
name: Pedersen, Alma Becic
name: Tengberg, Peter Toft
name: Troelsen, Anders
name: Schrøder, Henrik Morville
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Hematology

description: Background and purpose — Knee fracture treatment burden remains unknown, impeding proper use of hospital resources. We examined 20-year trends in incidence rates (IRs) and patient-, fracture-, and treatment-related characteristics of knee fracture patients. Patients and methods — This nationwide cohort study of prospectively collected data including patients with distal femoral, patellar, and proximal tibial fractures from the Danish National Patient Registry during 1998–2017, assesses IRs of knee fractures (per 105 inhabitants) as well as patient-, fracture-, and treatment-related characteristics of knee fracture patients. Results — During 1998–2017, 60,823 patients (median age 55; 57% female) sustained 74,106 knee fractures. 74% of the study population had a Charlson Comorbidity Index (CCI) of 0 and 18% a CCI of ≥ 2. 51% were proximal tibial fractures, 31% patellar fractures, and 18% distal femoral fractures. At the time of knee fracture, 20% patients had concomitant near-knee fractures (femur/tibia/fibula shaft/hip/ankle), 13% concomitant fractures (pelvic/spine/thorax/upper extremities), 5% osteoporosis, and 4% primary knee osteoarthritis. Over 1/3 knee fractures were surgically treated and of these 86% were open-reduction internal fixations, 9% external fixations, and 5% knee arthroplasties. The most common surgery type was proximal tibia plating (n = 4,868; 60% female). Knee fracture IR increased 12% to 70, females aged > 51 had the highest knee fracture IR, proximal tibial fracture had the highest knee fracture type IR (32) and surgically treated knee fracture IR increased 35% to 23. Interpretation — Knee fracture IRs, especially of surgically treated knee fractures, are increasing and proximal tibial fracture has the highest knee fracture type IR. Females aged > 51 and patients with comorbidity are associated with knee fracture, proximal tibial fracture, proximal tibial fracture surgery, and posttraumatic knee arthroplasty.
The Distribution of Ultra-Diffuse and Ultra-Compact Galaxies in the Frontier Fields
Creators: name: Janssens, Steven R.
name: Abraham, Roberto
name: Brodie, Jean
name: Forbes, Duncan A.
name: Romanowsky, Aaron J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Large low surface brightness galaxies have recently been found to be abundant in nearby galaxy clusters. In this paper, we investigate these ultra-diffuse galaxies (UDGs) in the six Hubble Frontier Fields galaxy clusters: Abell 2744, MACSJ0416.1$-$2403, MACSJ0717.5$+$3745, MACSJ1149.5$+$2223, Abell S1063 and Abell 370. These are the most massive ($1$-$3 \times 10^{15}~M_\odot$) and distant ($0.308 < z < 0.545$) systems in which this class of galaxy has yet been discovered. We estimate that the clusters host of the order of ${\sim}$200-1400 UDGs inside the virial radius ($R_{200}$), consistent with the UDG abundance halo-mass relation found in the local universe, and suggests that UDGs may be formed in clusters. Within each cluster, however, we find that UDGs are not evenly distributed. Instead their projected spatial distributions are lopsided, and they are deficient in the regions of highest mass density as traced by gravitational lensing. While the deficiency of UDGs in central regions is not surprising, the lopsidedness is puzzling. The UDGs, and their lopsided spatial distributions, may be associated with known substructures late in their infall into the clusters, meaning that we find evidence both for formation of UDGs in clusters and for UDGs falling into clusters. We also investigate the ultra-compact dwarfs (UCDs) residing in the clusters, and find the spatial distributions of UDGs and UCDs appear anti-correlated. Around 15% of UDGs exhibit either compact nuclei or nearby point sources. Taken together, these observations provide additional evidence for a picture in which at least some UDGs are destroyed in dense cluster environments and leave behind a residue of UCDs.
description: Accepted for publication in The Astrophysical Journal. Fixed typos, added reference for A370 in Table 1
Suburbanization and Ugliness: The Aesthetic Appropriation of the Postwar Urban Reality in the Work of Aldo Rossi, Bruno Zevi and Ludovico Quaroni
Creators: name: Charitonidou, Marianna
Publisher: name: ETH Zurich
Year: 2019
Subjects: Tendenza
Neorealist architecture
Tiburtino district
Ernesto Nathan Rogers
Ludovico Quaroni
Aldo Rossi

description: This presentation will unfold Tendenza and Neorealist architecture’s debates around the notion of ugliness, taking as main actors Ernesto Nathan Rogers and Aldo Rossi, for the former, and Ludovico Quaroni, for the latter. It will shed light on their respective positions regarding post-war city and will explain how they perceived the relation of post-war (sub)urbanization to city’s “uglification.” It will also present how ugliness was instrumentalized as a productive category in post-war Italian architecture and how Ernesto Nathan Rogers, Ludovico Quaroni and Aldo Rossi’s aesthetic views towards ugliness incorporated post-war urban reality. Its objective is to show how the anti-aesthetic and anti-elitist stance of Tendenza and Neorealist architecture were applied in Torre Velasca (1950-1958) by Ludovico Belgiojoso, Enrico Peressutti and Ernesto Nathan Rogers (BBPR) and Tiburtino district (1949-1954), by Ludovico Quaroni and Mario Ridolfi, in collaboration with certain young Roman architects, such as Carlo Aymonino. Tendenza and Neorealist architecture shared the intention to reformulate the ways we judge architecture through new models, corresponding to urban expansion, and establishing criteria that take into consideration the struggle for social reconstruction, characterizing post-war Italian cities. The emergence of new models of city’s aesthetic evaluation will be interpreted as a symptom of the debate regarding identity’s reconstruction after 1945. Quaroni’s replacement of beautiful/ugly by vital/nonvital shows that his concepts of the “città meravigliosa” and the “qualità diffusa” cannot be understood without untying their existential load, which moralizes ugliness. This appropriation of estrangement and de-familiarization and their existential implications justify Neorealism and Tendenza’s aestheticization of post-war Italian cities’s ugliness.
Cusp-scaling behavior in fractal dimension of chaotic scattering
Creators: name: Motter, Adilson E.
name: Lai, Ying-Cheng
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A topological bifurcation in chaotic scattering is characterized by a sudden change in the topology of the infinite set of unstable periodic orbits embedded in the underlying chaotic invariant set. We uncover a scaling law for the fractal dimension of the chaotic set for such a bifurcation. Our analysis and numerical computations in both two- and three-degrees-of-freedom systems suggest a striking feature associated with these subtle bifurcations: the dimension typically exhibits a sharp, cusplike local minimum at the bifurcation.
description: 4 pages, 4 figures, Revtex
Bosonic realization of algebras in the Calogero model
Creators: name: Jonke, Larisa
name: Meljanac, Stjepan
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study an N-body Calogero model in the S_N-symmetric subspace of the positive definite Fock space. We construct a new algebra of S_N-symmetric operators represented on the symmetric Fock space, and find a natural orthogonal basis by mapping the algebra onto the Heisenberg algebra. Our main result is the bosonic realization of nonlinear symmetry algebra describing the structure of degenerate levels of Calogero model.
description: 10 pages, Revtex, v2. mapping clarified, references changed
Semiclassical decay of strings with maximum angular momentum
Creators: name: Iengo, Roberto
name: Russo, Jorge G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the classical breaking of a highly excited (closed or open) string state on the leading Regge trajectory, represented by a rotating soliton solution, and we find the resulting solutions for the outgoing two pieces, describing two specific excited string states. This classical picture reproduces very accurately the precise analytical relation of the masses $M_1$ and $M_2$ of the decay products found in a previous quantum computation. The decay rate is naturally described in terms of a semiclassical formula. We also point out some interesting features of the evolution after the splitting process.
description: 18 pages, latex, 7 figures
Who, Where, and What to Wear? Extracting Fashion Knowledge from Social Media
Creators: name: Ma, Yunshan
name: Yang, Xun
name: Liao, Lizi
name: Cao, Yixin
name: Chua, Tat-Seng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Fashion knowledge helps people to dress properly and addresses not only physiological needs of users, but also the demands of social activities and conventions. It usually involves three mutually related aspects of: occasion, person and clothing. However, there are few works focusing on extracting such knowledge, which will greatly benefit many downstream applications, such as fashion recommendation. In this paper, we propose a novel method to automatically harvest fashion knowledge from social media. We unify three tasks of occasion, person and clothing discovery from multiple modalities of images, texts and metadata. For person detection and analysis, we use the off-the-shelf tools due to their flexibility and satisfactory performance. For clothing recognition and occasion prediction, we unify the two tasks by using a contextualized fashion concept learning module, which captures the dependencies and correlations among different fashion concepts. To alleviate the heavy burden of human annotations, we introduce a weak label modeling module which can effectively exploit machine-labeled data, a complementary of clean data. In experiments, we contribute a benchmark dataset and conduct extensive experiments from both quantitative and qualitative perspectives. The results demonstrate the effectiveness of our model in fashion concept prediction, and the usefulness of extracted knowledge with comprehensive analysis.
description: 9 pages, 8 figures, ACMMM 2019
The effects of face attractiveness on face memory depend on both age of perceiver and age of face
Creators: name: Lin, Tian
name: Fischer, Håkan
name: Johnson, Marcia K.
name: Ebner, Natalie C.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Face attractiveness can influence memory for previously seen faces. This effect has been shown to differ for young and older perceivers. Two parallel studies examined the moderation of both the age of the face and the age of the perceiver on the relationship between facial attractiveness and face memory. Study 1 comprised 29 young and 31 older participants; Study 2 comprised 25 young and 24 older participants. In both studies, participants completed an incidental face encoding and a surprise old/new recognition test with young and older faces that varied in face attractiveness. Face attractiveness affected memory for young but not older faces. In addition, young but not older perceivers showed a linear effect of facial attractiveness on memory for young faces, while both young and older perceivers showed a quadratic effect on memory for young faces. These findings extend previous work by demonstrating that the effect of facial attractiveness on face memory is a function of both the age of the perceiver and the age of the face. Factors that could account for such moderations of face and perceiver age on the associations between face attractiveness and face memory are discussed (e.g. age differences in social goals and face similarity/distinctiveness).
Supplementary Table, Figures, and Text from Locomotor transitions in the potential energy landscape-dominated regime
Creators: name: Othayoth, Ratan
name: Xuan, Qihan
name: Wang, Yaqing
name: Li, Chen
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biophysics
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Table, Figures and Text that support sections in main text
Relational events are more consequential when accompanied by emotional similarity
Creators: name: Levavi-Francy, Noa
name: Lazarus, Gal
name: Eshkol Rafaeli
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy

description: Shared experience – i.e. commonality in inner states such as feelings, beliefs, or concerns – plays an important role in establishing and maintaining close relationships. Emotional Similarity (ES) can be thought of as one type of shared experience, but the exact role it plays in our responses to specific contexts (objects, events, circumstances) is not well understood. We sought to examine the day-level context-dependent roles of romantic partners’ ES. We hypothesised that relational events (i.e. conflict and sexual activity) occurring on days with high ES would be more consequential. Two samples (N = 44, N = 80) of committed couples completed daily diaries for three and five weeks, respectively. Each evening, partners reported their currently-felt moods, relationship quality, and the occurrence of conflict and/or sex in the preceding 24 h. ES was operationalised as the profile similarity between the partners’ moods on each day. Generally, ES moderated the associations between conflict or sex and relational outcomes: on days marked by greater ES, conflict and sex had stronger negative/positive outcomes, respectively. These findings highlight the importance of considering ES on a momentary basis and suggest that it may function as an amplifier of charged relational events.
Hunting Local Mixmaster Dynamics in Spatially Inhomogeneous Cosmologies
Creators: name: Berger, Beverly K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Heuristic arguments and numerical simulations support the Belinskii et al (BKL) claim that the approach to the singularity in generic gravitational collapse is characterized by local Mixmaster dynamics (LMD). Here, one way to identify LMD in collapsing spatially inhomogeneous cosmologies is explored. By writing the metric of one spacetime in the standard variables of another, signatures for LMD may be found. Such signatures for the dynamics of spatially homogeneous Mixmaster models in the variables of U(1)-symmetric cosmologies are reviewed. Similar constructions for U(1)-symmetric spacetimes in terms of the dynamics of generic $T^2$-symmetric spacetime are presented.
description: 17 pages, 5 figures. Contribution to CQG Special Issue "A Spacetime Safari: Essays in Honour of Vincent Moncrief"
Pairing of Lyapunov Exponents for a Hard-Sphere Gas under Shear in the Thermodynamic Limit
Creators: name: Panja, Debabrata
name: van Zon, Ramses
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a dilute gas of hard spheres under shear. We use one of the predominant models to study this system, namely the SLLOD equations of motion, with an iso-kinetic Gaussian thermostat in between collisions, to get a stationary total peculiar kinetic energy. Based on the previously obtained result that in the non-equilibrium steady state and in case the number of particles $N$ becomes large, the coefficient of dynamical friction representing the iso-kinetic Gaussian thermostat for the SLLOD dynamics fluctuates with $1/\sqrt{N}$ fluctuations around a fixed value, we show on analytical grounds that for a hard sphere gas at small shear rate and with a large number of spheres, the conjugate pairing of the Lyapunov exponents is expected to be violated at the fourth power of the constant shear rate in the bulk.
description: 13 pages, 3 figures, to appear in Phys. Rev. E
Quantum Anomaly in Molecular Physics
Creators: name: Camblong, Horacio E
name: Epele, Luis N.
name: Fanchiotti, Huner
name: Canal, Carlos A. Garcia
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interaction of an electron with a polar molecule is shown to be the simplest realization of a quantum anomaly in a physical system. The existence of a critical dipole moment for electron capture and formation of anions, which has been confirmed experimentally and numerically, is derived. This phenomenon is a manifestation of the anomaly associated with quantum symmetry breaking of the classical scale invariance exhibited by the point-dipole interaction. Finally, analysis of symmetry breaking for this system is implemented within two different models: point dipole subject to an anomaly and finite dipole subject to explicit symmetry breaking.
description: 4 pages
Unitarity of supersymmetric SL(2,R)/U(1) and no-ghost theorem for fermionic strings in AdS(3) x N
Creators: name: Pakman, Ari
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The unitarity of the NS supersymmetric coset SL(2,R)/U(1) is studied for the discrete representations. The results are applied to the proof of the no-ghost theorem for fermionic strings in AdS(3) x N in the NS sector. A no-ghost theorem is proved for states in flowed discrete representations.
description: LaTeX in JHEP style, 16 pages, typos corrected
Shell and appendages variability in two allopatric ostracod species seen through the light of molecular data
Creators: name: Karanovic, Ivana
name: Pham Thi Minh Huyen
name: Hyunsu Yoo
name: Nakao, Yuriko
name: Tsukagoshi, Akira
Publisher: name: Brill Online
Year: 2019
Subjects: Paleontology

description: Ostracod crustaceans are among the most abundant microfossil animals. Understanding intra- and interspecific variability of their shell is of pivotal importance for the interpretation of paleontological data. In comparison to appendages, ostracod shell displays more intraspecific variability (in shape, size, and ornamentation), often as a response to environmental conditions. Shell variability has been studied with sophisticated methods, such as geometric morphometrics (GM), but the conspecificity of examined specimens and populations was never tested. In addition, there are no GM studies of appendages. We build on previously published high cytochrome c oxidase subunit I (COI) divergence rates among populations of a brackish water species, Ishizakiella miurensis (Hanai, 1957). With landmark-based GM analyses of its shell and appendages, and additional genetic markers (ITS, 28S, 18S), we test if the genetic variability is structured in morphospace. This approach is the core of integrative taxonomy paradigm which has been proposed to bring the gap between traditional taxonomy and other disciplines such as evolutionary biology. The results show that it is the shell shape, and not the shape of appendages, that mirrors the molecular phylogeny, and we describe a new species. Our results suggest that the landmark-based GM studies may be useful in paleontological datasets for closely related species delineation. We implement molecular clock and population statistics to discuss speciation processes and phylogeography of the two congeners in Korea and Japan.
Generalized Lomb-Scargle analysis of $\rm{^{36}Cl}$ decay rate measurements at PTB and BNL
Creators: name: Dhaygude, Akanksha
name: Desai, Shantanu
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recently, Pomme et al did an analysis of $\rm{^{36}Cl} $ radioactive decay data from measurements at the Physikalisch-Technische Bundesanstalt (PTB), in order to verify the claims by Sturrock and collaborators of an influence on beta-decay rates measured at Brookehaven National Lab (BNL) due to the rotation-induced modulation of the solar neutrino flux. Their analysis excluded any sinusoidal modulations in the frequency range from 0.2-20/year. We carry out an independent analysis of the same PTB and BNL data using the generalized Lomb-Scargle periodogram, to look for any statistically significant peaks in the range from 0 to 14 per year, and by evaluating the significance of every peak using multiple methods. Our results for the PTB data are in agreement with those by Pomme et al. For BNL data, we do find peaks at some of the same frequencies as Sturrock et al, but the significance is much lower. All our analysis codes and datasets have been made publicly available.
description: 7 pages, 4 figures
Statistics of Self-Crossings and Avoided Crossings of Periodic Orbits in the Hadamard-Gutzwiller Model
Creators: name: Braun, Peter A.
name: Heusler, Stefan
name: Müller, Sebastian
name: Haake, Fritz
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Employing symbolic dynamics for geodesic motion on the tesselated pseudosphere, the so-called Hadamard-Gutzwiller model, we construct extremely long periodic orbits without compromising accuracy. We establish criteria for such long orbits to behave ergodically and to yield reliable statistics for self-crossings and avoided crossings. Self-encounters of periodic orbits are reflected in certain patterns within symbol sequences, and these allow for analytic treatment of the crossing statistics. In particular, the distributions of crossing angles and avoided-crossing widths thus come out as related by analytic continuation. Moreover, the action difference for Sieber-Richter pairs of orbits (one orbit has a self-crossing which the other narrowly avoids and otherwise the orbits look very nearly the same) results to all orders in the crossing angle. These findings may be helpful for extending the work of Sieber and Richter towards a fuller understanding of the classical basis of quantum spectral fluctuations.
description: 25 pages, 18 figures
Generating Continuous Motion and Force Plans in Real-Time for Legged Mobile Manipulation
Creators: name: Ewen, Parker
name: Sleiman, Jean Pierre
name: Chen, Yuxin
name: Lu, Wei-Chun
name: Hutter, Marco
name: Vasudevan, Ram
Publisher: name: ETH Zurich
Year: 2021

description: Manipulators can be added to legged robots, allowing them to interact with and change their environment. Legged mobile manipulation planners must consider how contact forces generated by these manipulators affect the system. Current planning strategies either treat these forces as immutable during planning or are unable to optimize over these contact forces while operating in real-time. This paper presents the Stability and Task Oriented Receding-Horizon Motion and Manipulation Autonomous Planner (STORMMAP) that is able to generate continuous plans for the robot's motion and manipulation force trajectories that ensure dynamic feasibility and stability of the platform, and incentivizes accomplishing manipulation and motion tasks specified by a user. STORMMAP uses a nonlinear optimization problem to compute these plans and is able to run in real-time by assuming contact locations are given a-priori, either by a user or an external algorithm. A variety of simulated experiments on a quadruped with a manipulator mounted to its torso demonstrate the versatility of STORMMAP. In contrast to existing state of the art methods, the approach described in this paper generates continuous plans in under ten milliseconds, an order of magnitude faster than previous strategies.
description: arXiv
Charge density and electric charge in quantum electrodynamics
Creators: name: Morchio, G.
name: Strocchi, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The convergence of integrals over charge densities is discussed in relation with the problem of electric charge and (non-local) charged states in Quantum Electrodynamics (QED). Delicate, but physically relevant, mathematical points like the domain dependence of local charges as quadratic forms and the time smearing needed for strong convergence of integrals of charge densities are analyzed. The results are applied to QED and the choice of time smearing is shown to be crucial for the removal of vacuum polarization effects responible for the time dependence of the charge (Swieca phenomenon). The possibility of constructing physical charged states in the Feynman-Gupta-Bleuler gauge as limits of local states vectors is discussed, compatibly with the vanishing of the Gauss charge on local states. A modification by a gauge term of the Dirac exponential factor which yields the physical Coulomb fields from the Feynman-Gupta-Bleuler fields is shown to remove the infrared divergence of scalar products of local and physical charged states, allowing for a construction of physical charged fields with well defined correlation functions with local fields.
Modal strong structural controllability for networks with dynamical nodes
Creators: name: Mousavi, Shimaossadat
name: Kouvelas, Anastasios
name: Johansson, Karl H.
Publisher: name: ETH Zurich
Year: 2021
Subjects: Modal strong structural controllability
Network controllability
Pattern matrices
Strong structural stabilizability
Dynamical nodes

description: In this article, a new notion of modal strong structural controllability is introduced and examined for a family of LTI networks. These networks include structured LTI subsystems, whose system matrices have the same zero/nonzero/arbitrary pattern. An eigenvalue associated with a system matrix is controllable if it can be directly influenced by the control inputs. We consider an arbitrary set \Delta, and we refer to a network as modal strongly structurally controllable with respect to \Delta if, for all systems in a specific family of LTI networks, every \lambda\in\Delta is a controllable eigenvalue. For this family of LTI networks, not only is the zero/nonzero/arbitrary pattern of system matrices available, but also for a given \Delta, there might be extra information about the intersection of the spectrum associated with some subsystems and \Delta. Given a set \Delta, we first define a \Delta-network graph, and by introducing a coloring process of this graph, we establish a correspondence between the set of control subsystems and the so-called zero forcing sets. We also demonstrate how with \Delta={0} or \Delta=C\{0}, existing results on strong structural controllability can be derived through our approach. Compared to relevant literature, a more restricted family of LTI networks is considered in this work, and then, the derived condition is less conservative.
description: arXiv
Supplementary Notes from The evolution of mechanisms involved in vertebrate endothermy
Creators: name: Legendre, Lucas J.
name: Davesne, Donald
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Supplementary notes on specific aspects of physiological strategies discussed in the text
Development of emotion recognition in popular music and vocal bursts
Creators: name: Vidas, Dianna
name: Calligeros, Renee
name: Nelson, Nicole L.
name: Dingle, Genevieve A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Previous research on the development of emotion recognition in music has focused on classical, rather than popular music. Such research does not consider the impact of lyrics on judgements of emotion in music, impact that may differ throughout development. We had 172 children, adolescents, and adults (7- to 20-year-olds) judge emotions in popular music. In song excerpts, the melody of the music and the lyrics had either congruent valence (e.g. happy lyrics and melody), or incongruent valence (e.g. scared lyrics, happy melody). We also examined participants’ judgements of vocal bursts, and whether emotion identification was linked to emotion lexicon. Recognition of emotions in congruent music increased with age. For incongruent music, age was positively associated with judging the emotion in music by the melody. For incongruent music with happy or sad lyrics, younger participants were more likely to answer with the emotion of the lyrics. For scared incongruent music, older adolescents were more likely to answer with the lyrics than older and younger participants. Age groups did not differ on their emotion lexicons, nor recognition of emotion in vocal bursts. Whether children use lyrics or melody to determine the emotion of popular music may depend on the emotion conveyed.
The 2014-2015 Brazilian Mutual Phenomena campaign for the Jovian satellites and improved results for the 2009 events
Creators: name: Morgado, B.
name: Vieira-Martins, R.
name: Assafin, M.
name: Dias-Oliveira, A.
name: Machado, D. I.
name: Camargo, J. I. B.
name: Malacarne, M.
name: Sfair, R.
name: Winter, O. C.
name: Braga-Ribas, F.
name: Benedetti-Rossi, G.
name: Boldrin, L. A.
name: Camargo, B. C. B.
name: Gaspar, H. S.
name: Gomes-Júnior, A. R.
name: Miranda, J. O.
name: de Santana, T.
name: Trabuco, L. L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Progress in astrometry and orbital modelling of planetary moons in the last decade enabled better determinations of their orbits. These studies need accurate positions spread over extended periods. We present the results of the 2014-2015 Brazilian campaign for 40 mutual events from 47 observed light curves by the Galilean satellites plus one eclipse of Amalthea by Ganymede. We also reanalysed and updated results for 25 mutual events observed in the 2009 campaign. All telescopes were equipped with narrow-band filters centred at 889 nm with a width of 15 nm to eliminate the scattered light from Jupiter. The albedos' ratio was determined using images before and after each event. We simulated images of moons, umbra, and penumbra in the sky plane, and integrated their fluxes to compute albedos, simulate light curves and fit them to the observed ones using a chi-square fitting procedure. For that, we used the complete version of the Oren-Nayer reflectance model. The relative satellite positions mean uncertainty was 11.2 mas ($\sim$35 km) and 10.1 mas ($\sim$31 km) for the 2014-2015 and 2009 campaigns respectively. The simulated and observed \textsc{ascii} light curve files are freely available in electronic form at the \textit{Natural Satellites DataBase} (NSDB). The 40/25 mutual events from our 2014-2015/2009 campaigns represent a significant contribution of 17%/15% in comparison with the PHEMU campaigns lead by the IMCCE. Besides that, our result for the eclipse of Amalthea is only the 4$^{th}$ such measurement ever published after the three ones observed by the 2014-2015 international PHEMU campaign. Our results are suitable for new orbital/ephemeris determinations for the Galilean moons and Amalthea.
description: 14 pages, 8 figures and 5 tables
Do Trade Agreements Increase Food Trade?
Creators: name: Mujahid, Irfan
name: Kalkuhl, Matthias
name: Mujahid, Irfan
name: Kalkuhl, Matthias
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: International Relations/Trade
subject: food trade
subject: food security
subject: WTO
subject: regional trade agreement

description: In addition to multilateral trade agreements under the World Trade Organization (WTO), the world has seen a remarkable proliferation of regional trade agreements (RTAs) in the last two decades. This study investigates the impacts of these multilateral and regional trade institutions on food trade. The Gravity model of international trade is used for the empirical analysis. The model is developed in a large panel data setting and attempted to address some potential problems in the estimation including multilateral trade resistances, zero trade values and endogeneity. The results suggest that both the WTO and RTAs have delivered significant positive effects on trade, but only RTAs are found to have succeeded in increasing food trade among the members. However, although on average the WTO has negative implications on food trade, it has facilitated the developing countries more than the developed countries.
The roles of preceding stimuli and preceding responses on assimilative and contrastive sequential effects during facial expression perception
Creators: name: Shen-Mou Hsu
name: Wu, Zhao-Rong
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: In contrast to the classic view that facial expressions convey specific emotional states, recent theories have postulated that perception is a highly contextualised phenomenon. The present study utilised sequential effects as a probe to examine how the preceding context informs current facial expression perception, while participants performed a binary categorisation task on a sequence of expressions morphed from fearful to disgusted prototypes. We found that preceding stimuli/responses played differential roles in expression-based sequential effects. When preceding responses were analytically controlled for, the participants were biased to categorise the current targets as being either away from or close to the category of preceding expressions, yielding stimulus-related contrast or assimilation effects, depending on whether the stimulus similarity between the preceding and current expressions was small or large. When the stimulus similarity between successive expressions was analytically controlled for, preceding responses slanted current categorisation judgments toward response-related assimilative consequences. Distinct from stimulus-related contrast, both stimulus-related and response-related assimilations were robust since they could persist for expressions presented up to two trials back and when the perceptual quality of the stimuli was poor. We suggest that the criterion-shift account is generally compatible with the overall findings, revealing how facial expression perception is temporally contextualised.
A Non-Abelian Analogue of DBI from $T \overline{T}$
Creators: name: Brennan, T. Daniel
name: Ferko, Christian
name: Sethi, Savdeep
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Dirac action describes the physics of the Nambu-Goldstone scalars found on branes. The Born-Infeld action defines a non-linear theory of electrodynamics. The combined Dirac-Born-Infeld (DBI) action describes the leading interactions supported on a single D-brane in string theory. We define a non-abelian analogue of DBI using the $T \overline{T}$ deformation in two dimensions. The resulting quantum theory is compatible with maximal supersymmetry and such theories are quite rare.
description: 19 pages; LaTeX; references added, minor typos corrected
Large-scale magnetic field generation by alpha-effect driven by collective neutrino-plasma interaction
Creators: name: Semikoz, V. B.
name: Sokoloff, D. D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We suggest a new mechanism for generation of large-scale magnetic field in the hot plasma of early universe which is based on the parity violation in weak interactions and depends neither on helicity of matter turbulence resulting in the standard alpha-effect nor on general rotation. The mechanism can result in a self-excitation of an (almost) uniform cosmological magnetic field.
description: 11 pages, no figure, extended version accepted in Phys. Rev. Lett
Elasmopus levis S. I. Smith 1873
Creators: name: Vader, Wim
name: Krapp-Schickel, Traudl
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Maeridae
Elasmopus
Elasmopus levis

description: Elasmopus levis S.I. Smith, 1873
(Figures 1–3)
S.I. Smith 1873: 559; Paulmier 1905: 162, fig. 32; Bousfield, 1973: 63-64, pl. X/2; Feeley and Wass 1971: 15; LeCroy 2000: 87.
 Material examined
 45166 (EJ 67074) Hillsborough County; 19 miles (30 km) west of Egmont Key. 27 ◦ 37 ′ N, 83 ◦ 07 ′ W 18-m Dredge. 2 March 1967. One female.
 14591 (EJ 72183) St Lucie County; east of F.P.& L. Electrical generating plant. 27 ◦ 22 ′ 08" N to 27 ◦ 22 ′ 08" N, 80 ◦ 13 ′ 46" W to 80 ◦ 13 ′ 46" W; 11.8 11.8 Shipek grab. Hutchinson Island Nuclear Power Plant Environmental Study. One male 9 mm, one female 8 mm dissected, 7 September 1972, slide FSBC I 79919; one female in alcohol.
 Description
 Length. 9–12 mm.
 Head. A1 more than half body length, acc. flag. with two or three arts; A2 half or more than length of A1, flagellum with six to eight arts.
 Mouthparts. Md palp art 2 ≤ art 3. Md palp art 3 l:b = 2.5–3. Md palp art 1 distally obliquely rounded, ratio art 1: art 2> half.
 Pereon. Cx 1 anteroventral corner rounded. Gn1 palm almost transverse. Gn1 propodus facially near inner and outer margin setose. Gn2 dactylus strongly curved, ratio dactylus to propodus 1/2. Gn 2 male dactylus “comes across” the propodus. Gn2 palm not excavate, but shallow, wide depression, in male posterior margin setose. Gn 2 male ratio propodus:carpus = 4–5. Gn 2 female similar, but smaller, at palmar corner strong spines and no depression. Male pereopods: P3, 4 propodus distal spines normal. P5 basis broadened, convex. P5–7 basis hind margin with short setae, in P6, 7 serrate. Female pereopods less setose and less expanded.
 Pleon. Ep3 posterodistal corner acute tooth, posterior margin smooth, concave, inferior margin with short spines. Urosome without bump. U1 peduncle with one basofacial seta. U3 ratio peduncle: longer ramus = 0.6–0.7. U3 rami ratio 1–1.25. Telson cleft, l ≥ b, halves distally deeply concave, with acute inner lobes longer than acute outer ones; two or three strong distal spines, shorter than telson length and not exceeding inner lobe.
 Remarks
It is very strange that within the rich material of the Hourglass collection the presence of the two species has such an unequal numerical balance and none of the undescribed species of LeCroy 2000: 80 ff. could be found.
description: Published as part of Vader, Wim & Krapp-Schickel, Traudl, 2012, On some maerid and melitid material (Crustacea: Amphipoda) collected by the Hourglass Cruises (Florida). Part 2: Genera Dulichiella and Elasmopus, with a key to world Elasmopus, pp. 1179-1218 in Journal of Natural History 46 (19 - 20) on pages 1181-1185, DOI: 10.1080/00222933.2011.652984, http://zenodo.org/record/5199933
Fractional corner charges in a 2D super-lattice Bose-Hubbard model
Creators: name: Bibo, Julian
name: Lovas, Izabella
name: You, Yizhi
name: Grusdt, Fabian
name: Pollmann, Frank
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study a two dimensional super-lattice Bose-Hubbard model with alternating hoppings in the limit of strong on-site interactions. We evaluate the phase diagram of the model around half-filling using the density matrix renormalization group method and find two gapped phases separated by a gapless superfluid region. We demonstrate that the gapped states realize two distinct higher order symmetry protected topological phases, which are protected by a combination of charge conservation and $C_4$ lattice symmetry. The phases are distinguished in terms of a quantized fractional corner charge and a many-body topological invariant that is robust against arbitrary, symmetry preserving edge manipulations. We support our claims by numerically studying the full counting statistics of the corner charge, finding a sharp distribution peaked around the quantized values. These results are experimentally observable in ultracold atomic settings using state of the art quantum gas microscopy.
Additional file 1 of Evaluation of cerium oxide as a phosphate binder using 5/6 nephrectomy model rat
Creators: name: Hashimoto, Akiko
name: Gao, Jiaqi
name: Kanome, Yuki
name: Ogawa, Yukihiro
name: Nakatsu, Masaharu
name: Kohno, Masahiro
name: Fukui, Koji
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: Computational Biology

description: Additional file 1: Fig. 10. Concentrations of biomarkers upon dissection. Sham rats and three different treated (normal, lanthanum carbonate, and cerium oxide) 5/6Nx rats fed soy protein or casein were used (Sham-s, n=6; 5/6Nx-s-n, n=6; 5/6Nx-s-La, n=6; 5/6Nx-s-Ce, n=6; Sham-c, c=6; 5/6Nx-c-n, n=6; 5/6Nx-c-La, n=6; 5/6Nx-c-Ce, n=5). The data are shown as means ± SD and were analyzed using the Tukey-Kramer method. *p<0.05; **p<0.01; ***p<0.001; ****p<0.0001
KORELASI FAKTOR BAYI DAN OBSTETRIK DENGAN KEJADIAN HIV/AIDS DI RSUD CILACAP TAHUN 2012-2017
Creators: name: Dwi Maryanti
name: Budiarti, Tri
name: Octy NabilatusSyfa
Publisher: name: figshare
Year: 2019
Subjects: subject: 111402 Obstetrics and Gynaecology
subject: FOS: Clinical medicine
subject: 111006 Midwifery
subject: FOS: Health sciences

description: This study aims to determine the correlation of neonatal and obstetric factors with the incidence of HIV / AIDS in Cilacap District Hospital in 2012-2017 and the magnitude of the risk. Neonatal and obstetric factors consist of gender, mode of delivery, postnatal condition and birth weight. The study design uses retrospective library research. The case population in this study is all neonates born to mothers with HIV / AIDS in Cilacap District Hospital in 2012-2017. The sampling technique uses total sampling. Research results: 1). More neonates with male sex are born to mothers giving birth to HIV / AIDS. 2). The majority of neonatal birth states are alive. 3) The majority of obstetric types of labor are SC. 4). The majority of neonatal birth weight is 2500 - 4000 grams. Neonatal factors consisting of gender, postnatal condition and birth weight there is no correlation with the incidence of HIV / AIDS in maternity in Cilacap Regional Hospital in 2012-2017, while obstetric type of delivery has a correlation with HIV / AIDS. .
Lyapunov Exponent Pairing for a Thermostatted Hard-Sphere Gas under Shear in the Thermodynamic Limit
Creators: name: Panja, Debabrata
name: van Zon, Ramses
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We demonstrate why for a sheared gas of hard spheres, described by the SLLOD equations with an iso-kinetic Gaussian thermostat in between collisions, deviations of the conjugate pairing rule for the Lyapunov spectrum are to be expected, employing a previous result that for a large number of particles $N$, the iso-kinetic Gaussian thermostat is equivalent to a constant friction thermostat, up to $1/\sqrt{N}$ fluctuations. We also show that these deviations are at most of the order of the fourth power in the shear rate.
description: 4 pages, to appear in Rapid Comm., Phys. Rev. E