cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
scMarkerBase: Unleashing the power of single-cell and knowledge graphs in differential expression profiling from single-cell RNA transcriptomic data
Creators: name: Kshirsagar, Meghana
name: Vaidya, Gauri
name: Ye, Yang
name: Lynch, Michael
name: Ryan, Conor
Publisher: name: F1000 Research Limited
Year: 2023

description: Biomarker profiles of individuals are an active area of research because it has the potential to assist doctors in diagnosing, choosing, and monitoring cancer treatment during and after therapy. Single-cell RNA sequencing offered insights leading to remarkable progress in immunotherapy since it provides the gene expression of individual immune cells. Immune cell profiling and transcriptomic data can inform patient progression and can potentially be used to monitor cancer growth and spread. Information on cancer-specific biomarkers and differentially expressed genes, consolidated into a single, unified source, can potentially provide crucial insights into understanding the underlying biology of cancer. This motivation drives our research, where we build a framework, scMarkerBase, to explore panCancer single cell biomarkers. These are validated against biomedical literature to build a knowledge base of biomarkers for different cancer types. scMarkerBase users can interactively engage themselves in retrieving relevant information by customizing cypher queries for a deeper understanding of the interactions and functional implications within the biomedical domain. For the creation of scMarkerBase, we performed the cell-to-cluster type assignment with singleR and scMRMA automatic annotation tools and used the overlap amongst annotation tools to build a knowledge base framework using Neo4j graph database from two datasets on two cancer types, consisting of panCancer single cell biomarkers. We validated the knowledge base of biomarkers against those published in scientific literature. scMarkerBase users can interactively engage themselves in retrieving relevant information by customizing cypher queries for a deeper understanding of the interactions and functional implications within the biomedical domain.
Maintaining supersolidity in one and two dimensions
Creators: name: Poli, Elena
name: Bland, Thomas
name: Politi, Claudia
name: Klaus, Lauritz
name: Norcia, Matthew A.
name: Ferlaino, Francesca
name: Bisset, Russell N.
name: Santos, Luis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We theoretically investigate supersolidity in three-dimensional dipolar Bose-Einstein condensates. We focus on the role of trap geometry in determining the dimensionality of the resulting droplet arrays, which range from one-dimensional to zigzag, through to two-dimensional supersolids in circular traps. Supersolidity is well established in one-dimensional arrays, and may be just as favorable in two-dimensional arrays provided that one appropriately scales the atom number to the trap volume. We develop a tractable variational model--which we benchmark against full numerical simulations--and use it to study droplet crystals and their excitations. We also outline how exotic ring and stripe states may be created with experimentally-feasible parameters. Our work paves the way for future studies of two-dimensional dipolar supersolids in realistic settings.
description: 9 pages, 4 figures
Post-Oligarchic Evolution of Protoplanetary Embryos and the Stability of Planetary Systems
Creators: name: Zhou, Ji-Lin
name: Lin, Douglas N. C.
name: Sun, Yi-Sui
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the orbit-crossing time (T_c) of protoplanet systems both with and without a gas-disk background. The protoplanets are initially with equal masses and separation (EMS systems) scaled by their mutual Hill's radii. In a gas-free environment, we find log (T_c/yr) = A+B \log (k_0/2.3). Through a simple analytical approach, we demonstrate that the evolution of the velocity dispersion in an EMS system follows a random walk. The stochastic nature of random-walk diffusion leads to (i) an increasing average eccentricity ~ t^1/2, where t is the time; (ii) Rayleigh-distributed eccentricities (P(e,t)=e/σ^2 \exp(-e^2/(2σ^2)) of the protoplanets; (iii) a power-law dependence of T_c on planetary separation. As evidence for the chaotic diffusion, the observed eccentricities of known extra solar planets can be approximated by a Rayleigh distribution. We evaluate the isolation masses of the embryos, which determine the probability of gas giant formation, as a function of the dust and gas surface densities.
description: 15 pages, 13 figures (2 color ones), accepted for publication in ApJ
Constant-roll warm inflation and the $β$-function approach
Creators: name: Mun, Ui Ri
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a new approach to constant-roll warm inflation as a generalization of constant-roll inflation. Based on the $β$-function formalism, it is shown that constant-roll warm inflation models with a natural end fall into universality classes defined by three different types of $β$-functions, under the assumption that radiation energy density is quasi-stable. Given that warm inflation is completely specified by the $β$-function and dissipation coefficient ratio, we investigate whether or not the inflation can physically be realized for enough number of e-foldings at the background level for some combinations of the $β$-functions and non-trivial dissipation coefficient ratios.
description: 10 pages, 5 figures
Hybrid single-electron transistor as a source of quantized electric current
Creators: name: Pekola, Jukka P.
name: Vartiainen, Juha J.
name: Mottonen, Mikko
name: Saira, Olli-Pentti
name: Meschke, Matthias
name: Averin, Dmitri V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The basis of synchronous manipulation of individual electrons in solid-state devices was laid by the rise of single-electronics about two decades ago. Ultra-small structures in a low temperature environment form an ideal domain of addressing electrons one by one. A long-standing challenge in this field has been the realization of a source of electric current that is accurately related to the operation frequency $f$. There is an urgent call for a quantum standard of electric current and for the so-called metrological triangle, where voltage from Josephson effect and resistance from quantum Hall effect are tested against current via Ohm's law for a consistency check of the fundamental constants of Nature, $\hbar$ and $e$. Several attempts to create a metrological current source that would comply with the demanding criteria of extreme accuracy, high yield, and implementation with not too many control parameters have been reported. However, no satisfactory solution exists as yet despite many ingenious achievements that have been witnessed over the years. Here we propose and prove the unexpected concept of a hybrid metal-superconductor turnstile in the form of a one-island single-electron transistor with one gate, which demonstrates robust current plateaus at multiple levels of $ef$ within the uncertainty of our current measurement. Our theoretical estimates show that the errors of the present system can be efficiently suppressed by further optimizations of design and proper choice of the device parameters and therefore we expect it to eventually meet the stringent specifications of quantum metrology.
description: 5 pages, 3 figures
Han divorziato, ma sono rimasti amici? Parole e musica (e filologi e musicologi) tra i trovatori e Dante
Creators: name: Noto, Giuseppe
Publisher: name: Pavia University Press - Edizioni dell'Università degli Studi di Pavia
Year: 2023

description: L’intervento mira a fare il punto in merito ai complessi rapporti tra filologia e musicologia sul fronte dello studio della letteratura romanza medievale; e cerca di indicare alcune comuni linee di ricerca per il futuro, possibili a patto che la filologia sia capace di aggiustare il tiro (come suggeriva qualche tempo fa Giuseppe Tavani), non solo collaborando con la musicologia (come si è finalmente cominciato a fare) ma evitando anche di intendere quest’ultima come una sorta di unico blocco indistinto.
description: Philomusica on-line, Vol 22, N° 1 (2023): Musica e letteratura al tempo di Dante
A fast and efficient deep learning procedure for tracking droplet motion in dense microfluidic emulsions
Creators: name: Durve, Mihir
name: Bonaccorso, Fabio
name: Montessori, Andrea
name: Lauricella, Marco
name: Tiribocchi, Adriano
name: Succi, Sauro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a deep learning-based object detection and object tracking algorithm to study droplet motion in dense microfluidic emulsions. The deep learning procedure is shown to correctly predict the droplets' shape and track their motion at competitive rates as compared to standard clustering algorithms, even in the presence of significant deformations. The deep learning technique and tool developed in this work could be used for the general study of the dynamics of biological agents in fluid systems, such as moving cells and self-propelled micro organisms in complex biological flows.
$β$-deformation for matrix model of M-theory
Creators: name: Shimada, Hidehiko
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new class of deformation of the matrix model of M-theory is considered. The deformation is analogous to the so-called $\b$-deformation of $D=3+1$, $\mN=4$ Super Yang-Mills theory, which preserves the conformal symmetry. It is shown that the deformed matrix model can be considered as a matrix model of M-theory on a certain curved background in eleven-dimensional supergravity, under a scaling limit involving the deformation parameter and $N$ (the size of the matrices). The background belongs to the so-called pp-wave type metric with a non-constant four-form flux depending linearly on transverse coordinates. Some stable solutions of the deformed model are studied, which correspond to membranes with the torus topology. In particular, it is found that apparently distinct configurations of membranes, having different winding numbers, are indistinguishable in the matrix model. Simultaneous introduction of both $\b$-deformation and mass-deformation is also considered, and, in particular, a situation is found in which the stable membrane configuration interpolates between a torus and a sphere, depending on the values of the deformation parameters.
description: 36 pages
Local dynamics for fibered holomorphic transformations
Creators: name: Ponce, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F50, 34C25

description: Fibered holomorphic dynamics are skew-product transformations over an irrational rotation, whose fibers are holomorphic functions. In this paper we study such a dynamics on a neighborhood of an invariant curve. We obtain some results analogous to the results in the non fibered case.
Deterministic spatio-temporal control of nano-optical fields in optical antennas and nano transmission lines
Creators: name: Huang, J. S.
name: Voronine, D. V.
name: Tuchscherer, P.
name: Brixner, T.
name: Hecht, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that pulse shaping techniques can be applied to tailor the ultrafast temporal response of the strongly confined and enhanced optical near fields in the feed gap of resonant optical antennas (ROAs). Using finite-difference time-domain (FDTD) simulations followed by Fourier transformation, we obtain the impulse response of a nano structure in the frequency domain, which allows obtaining its temporal response to any arbitrary pulse shape. We apply the method to achieve deterministic optimal temporal field compression in ROAs with reduced symmetry and in a two-wire transmission line connected to a symmetric dipole antenna. The method described here will be of importance for experiments involving coherent control of field propagation in nanophotonic structures and of light-induced processes in nanometer scale volumes.
description: 5 pages, 5 figures
Effective free energy method for nematic liquid crystals in contact with structured substrates
Creators: name: Harnau, L.
name: Kondrat, S.
name: Poniewierski, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the phase behavior of a nematic liquid crystal confined between a flat substrate with strong anchoring and a patterned substrate whose structure and local anchoring strength we vary. By first evaluating an effective surface free energy function characterizing the patterned substrate we derive an expression for the effective free energy of the confined nematic liquid crystal. Then we determine phase diagrams involving a homogeneous state in which the nematic director is almost uniform and a hybrid aligned nematic state in which the orientation of the director varies through the cell. Direct minimization of the free energy functional were performed in order to test the predictions of the effective free energy method. We find remarkably good agreement between the phase boundaries calculated from the two approaches. In addition the effective energy method allows one to determine the energy barriers between two states in a bistable nematic device.
description: 10 pages, 7 figures, submitted
Single Alloy Nanoparticle X-Ray Imaging during a Catalytic Reaction
Creators: name: Kim, Young Yong
name: Keller, Thomas F.
name: Goncalves, Tiago J.
name: Abuin, Manuel
name: Runge, Henning
name: Gelisio, Luca
name: Carnis, Jerome
name: Vonk, Vedran
name: Plessow, Philipp N.
name: Vartanyants, Ivan A.
name: Stierle, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The imaging of active nanoparticles represents a milestone in decoding heterogeneous catalysts dynamics. We report the facet resolved, surface strain state of a single PtRh alloy nanoparticle on SrTiO3 determined by coherent x-ray diffraction imaging under catalytic reaction conditions. Density functional theory calculations allow us to correlate the facet surface strain state to its reaction environment dependent chemical composition. We find that the initially Pt terminated nanoparticle surface gets Rh enriched under CO oxidation reaction conditions. The local composition is facet orientation dependent and the Rh enrichment is non-reversible under subsequent CO reduction. Tracking facet resolved strain and composition under operando conditions is crucial for a rational design of more efficient heterogeneous catalysts with tailored activity, selectivity and lifetime.
description: 15 pages, 4 figures, 32 references
ESiWACE : A European Centre of Excellence for Future Exascale Climate and Weather Predictions
Creators: name: Neumann, Philipp
name: Duras, Julia
Publisher: name: Zenodo
Year: 2019

description: The Centre of Excellence in Simulation of Weather and Climate in Europe (ESiWACE) forms a joint scientific community around Earth System Modelling (ESM) from the two communities of weather and climate research. The main objectives of ESiWACE are to substantially improve efficiency and productivity of numerical weather and climate simulation on high-performance computing (HPC) platforms, strengthening the user-driven evolution of the community software, build a critical mass and create expertise to increase the community impact on hardware development towards the extreme scale as well as future international exascale initiatives.

Beside the three core themes and an introduction to the consecutive project ESiWACE2, the poster will focus on the central deliverable of global high resolution demonstrators.
The Nuclear Spin Nanomagnet
Creators: name: Korenev, V. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Linearly polarized light tuned slightly below the optical transition of the negatively charged exciton (trion) in a single quantum dot causes the spontaneous nuclear spin polarization (self-polarization) at a level close to 100%. The effective magnetic field of spin-polarized nuclei brings the optical transition energy into resonance with photon energy. The resonantly enhanced Overhauser effect sustains the stability of the nuclear self-polarization even in the absence of spin polarization of the quantum dot electron. As a result the optically selected single quantum dot represents a tiny magnet with the ferromagnetic ordering of nuclear spins - the nuclear spin nanomagnet.
description: 19 pages, including 3 figures. Short version has been accepted for publication in Physical Review Letters
Growing length and time scales in a suspension of athermal particles
Creators: name: Hatano, Takahiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We simulate a relaxation process of non-brownian particles in a sheared viscous medium; the small shear strain is initially applied to a system, which then undergoes relaxation. The relaxation time and the correlation length are estimated as functions of density, which algebraically diverge at the jamming density. This implies that the relaxation time can be scaled by the correlation length using the dynamic critical exponent, which is estimated as 4.6(2). It is also found that shear stress undergoes power-law decay at the jamming density, which is reminiscent of critical slowing down.
Additional file 1 of The relationship between sleep status and activity of daily living: based on China Hainan centenarians cohort study
Creators: name: Yang, Shanshan
name: Wang, Shengshu
name: Liu, Guangdong
name: Li, Rongrong
name: Li, Xuehang
name: Chen, Shimin
name: Zhao, Yali
name: Liu, Miao
name: Liu, Yunxi
name: He, Yao
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Additional file 1: Table S1. The relationship between sleep status and ADL disability in male and female centenarians. Table S2. The relationship between sleep status and ADL moderate and severe disability in male and female centenarians. Table S3. The distribution of the 7 components of PSQI and different ADL function groups. Table S4. The relationship between the 7 components of PSQI and ADL disability/ADL moderate and severe disability.
Krylov complexity in conformal field theory
Creators: name: Dymarsky, Anatoly
name: Smolkin, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Krylov complexity, or K-complexity for short, has recently emerged as a new probe of chaos in quantum systems. It is a measure of operator growth in Krylov space, which conjecturally bounds the operator growth measured by the out of time ordered correlator (OTOC). We study Krylov complexity in conformal field theories by considering arbitrary 2d CFTs, free field, and holographic models. We find that the bound on OTOC provided by Krylov complexity reduces to bound on chaos of Maldacena, Shenker, and Stanford. In all considered examples including free and rational CFTs Krylov complexity grows exponentially, in stark violation of the expectation that exponential growth signifies chaos.
description: 10 pages, 9 figures
Kerguelenia kawatiri Lowry & Stoddart 2010, sp. nov.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Kergueleniidae
Kerguelenia
Kerguelenia kawatiri

description: Kerguelenia kawatiri sp. nov. (Figs 19–21) Type material. HOLOTYPE, female, 3.5 mm, AM P.69010, east of Cape Naturaliste, Tasmania, Australia, 40°45.94’S 149°01.62’E to 40°46.54’S 149°00.27’E, 2400–2500 m, mud and clay, 10 December 1986, R. T. Springthorpe, RV Franklin stn FR1086-04. Type locality. East of Cape Naturaliste, Tasmania, Australia, 40°45.94’S 149°01.62’E to 40°46.54’S 149°00.27’E, 2400–2500 m depth. Etymology. Named for the steamship Kawatiri, wrecked in 1907 while trying to enter Macquarie Harbour through Hells Gates in Tasmania. Diagnostic description.  Antenna 1 peduncular article 1 not or only slightly produced dorsodistally . Mandible incisor absent; left lacinia mobilis absent; accessory spine row absent; molar absent. Maxilla 1 outer plate with 5 setal-teeth, setal-teeth without cusps; palp 2-articulate. Maxilliped palp article 2 longer than broad, length 1.8 x breadth. Gnathopod 1 basis margins subparallel; ischium very long, length 4 x breadth; carpus very long, length 4.3 x breadth, subequal to (1 x) propodus; propodus tapered distally, length 5 x breadth. Pereopods 3 and 4 propodus with short distal locking seta.  Pereopod 5 basis linear , without posteroventral lobe; merus moderately expanded posteriorly. Pereopod 7 basis with posteroventral lobe extending about halfway along merus; merus posteroventral lobe extending more than halfway along, but not beyond, carpus. Pleonite 3 without dorsodistal boss. Epimeron 3 posteroventral corner subquadrate. Uropod 1 rami without robust setae.  Uropod 3 uniramous ; outer ramus 2-articulate. Telson shorter than broad, length about 0.9 x breadth. Remarks. Kerguelenia kawatiri belongs to a group of species (K. antarctica, K. compacta and K. macropoda) in which the basis of pereopod 5 is linear and uropod 3 is uniramous. It can be distinguished from K. antarctica by the absence of any dorsodistal production on peduncular article 1 of antenna 1; and from the other two species by the presence of a minute second article on the ramus of uropod 3. The holotype female has an oostegite on pereopod 5 only. Distribution. South-eastern Australia, in 2400–2500 m depth.
description: Published as part of Lowry, J. K. & Stoddart, H. E., 2010, Kergueleniidae fam. nov. (Crustacea: Amphipoda: Lysianassoidea) in Australian waters, pp. 1-30 in Zootaxa 2564 (1) on pages 21-22, DOI: 10.11646/zootaxa.2329.1.3, http://zenodo.org/record/5301357
Analytical solutions of specific classes of astrophysical radiating shocks
Creators: name: Falize, Emeric
name: Michaut, Claire
name: Bouquet, Serge
name: Cavet, Cécile
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we study specific classes of radiating shocks which are widely spread in astrophysical environments. We present more general solutions of their structure and proceed to the analytical determination of physical quantities.
CollinsLaccases_FastDP_Output
Creators: name: Diaz, Jorge
Publisher: name: Zenodo
Year: 2019

description: This data was saved onto a machine at BNL for processing. The data was collected from NSLS-2 and was used for a project in which one of the software programs was upgraded (fast_dp). All of the files were produced by running fast_dp (a rapid data processing program for crystallographic data).

The image that was used for this specific run was in: ../CollinsLaccases/data/CataApo05/5/NSLS2-18_10/CataApo05_1444_master.h5
A novel role for the Escherichia coli RNA chaperone Hfq in the adaptive response to nitrogen starvation
Creators: name: McQuail, Joshua
Publisher: name: Imperial College London
Year: 2021

description: Nitrogen is an essential nutrient for bacterial survival and growth, being a constituent of almost all cellular building blocks, including nucleotides, amino acids, and cell wall components. The adaptive response to nitrogen starvation in Escherichia coli has been well characterised at the transcriptional level, but relatively little beyond that. Moreover, the role of post-transcriptional regulation of gene expression is being increasingly recognised as a vital facet of bacterial adaptive responses to stress. Therefore, the ubiquitous post-transcriptional regulatory protein Hfq was chosen as a surrogate to study the post-transcriptional basis of the adaptive response to nitrogen starvation. Here, we demonstrate a requirement of Hfq for optimal survival, and maintenance of cellular metabolism, during long-term nitrogen starvation. Using single-molecule tracking photoactivatable localisation microscopy (SM-PALM), we present a novel property of Hfq in long-term nitrogen starved bacteria whereby it forms a single, distinct focus. The Hfq foci form gradually as nitrogen starvation persists, correlating with Hfq’s role in regulating cellular metabolism. Notably, the Hfq foci rapidly disperse when bacteria are replenished with nitrogen, thus cementing the idea that the Hfq foci play a role in the adaptive response to nitrogen starvation. Moreover, we establish that the above described Hfq foci contains the components of the RNA degradosome – namely RNase E, PNPase and RhlB. This discovery suggests that the Hfq foci/RNA degradosome structure in nitrogen starved bacteria may have a role in managing the fate of RNA in stressed bacteria functioning akin to analogous liquid-liquid phase separated (LLPS) structures described in stressed eukaryotic cells. Hence, we term the Hfq foci/RNA degradosome structure the H-body. Our investigation reveals that H-bodies share several features of LLPS structures. Although many details of the mechanistic basis and prevalence of H-bodies yet remain elusive, their discovery most likely heralds a new facet of post transcriptional gene regulation in bacteria.
Uniform Complete Observability of Mass and Rotational Inertial Parameters in Adaptive Identification of Rigid-Body Plant Dynamics
Creators: name: Paine, Tyler M.
name: Whitcomb, Louis L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper addresses the long-standing open problem of observability of mass and inertia plant parameters in the adaptive identification (AID) of second-order nonlinear models of 6 degree-of-freedom rigid-body dynamical systems subject to externally applied forces and moments. Although stable methods for AID of plant parameters for this class of systems, as well numerous approaches to stable model-based direct adaptive trajectory-tracking control of such systems, have been reported, these studies have been unable to prove analytically that the adaptive parameter estimates converge to the true plant parameter values. This paper reports necessary and sufficient conditions for the uniform complete observability (UCO) of 6-DOF plant inertial parameters for a stable adaptive identifier for this class of systems. When the UCO condition is satisfied, the adaptive parameter estimates are shown to converge to the true plant parameter values. To the best of our knowledge this is the first reported proof for this class of systems of UCO of plant parameters and for convergence of adaptive parameter estimates to true parameter values. We also report a numerical simulation study of this AID approach which shows that (a) the UCO condition can be met for fully-actuated plants as well as underactuated plants with the proper choice of control input and (b) convergence of adaptive parameter estimates to the true parameter values. We conjecture that this approach can be extended to include other parameters that appear rigid body plant models including parameters for drag, buoyancy, added mass, bias, and actuators.
description: To appear in published proceedings of the 2021 IEEE International Conference on Robotics and Automation (ICRA), Xian, China, May 30 - June 5, 2021. 6 Pages, 2 Figures. *Replacement (v2) submitted to include author's middle initials in metadata. *Replacement (v3) submitted to include publication information
Managerial delegation in a dynamic renewable resource oligopoly
Creators: name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: I propose a differential oligopoly game of resource extraction under (quasi-static) open-loop and nonlinear feedback strategies, where firms are managerial and two alternative types of delegation contract are considered. Under open-loop information, delegation expands the residual steady state resource stock. Conversely, under nonlinear feedback information the outcome depends on the structure of managerial incentives. If sales are used, once again delegation favours resource preservation. On the contrary, if market shares are included in the delegation contract, this combines with an underlying voracity effect in shrinking the steady state volume of the resource.
Spectroscopy of the hot pulsating star Beta Cephei. Velocities and EWs from C,N,O and Si lines
Creators: name: Catanzaro, G.
name: Leone, F.
name: Busa', I.
name: Romano, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Frequencies in oscillating $β$ Cephei stars are usually inferred by means of radial velocities measured from the SiIII triplet 4552-4574 A. These lines, relatively insensitive to the variation of Teff through a pulsation cycle, show small equivalent width variations. In this study we aimed to verify if the behavior of radial velocities and equivalent widths measured from other ions are compatible with the one observed from SiIII lines and than to verify the possible vertical stratification along the stellar atmosphere. For this reason we selected from our spectra a number of, unblended and well isolated, CII, NII and OII lines besides the famous SiIII triplet. All those lines cover the range in optical depth between -2.1 and -0.5. Unfortunately, we did not find any differences in the radial velocities behavior line-by-line and then we derived the frequency of the principal radial mode combining all the velocities derived from each spectral line separately. The inferred frequency was f1=5.249677+/-0.000007 c/d. Another important task we would like to accomplish with this paper is to make available to the community our large sample of spectroscopic data, that is 932 velocities and equivalent widths measured from our sample of C, N, O and Si lines. All the spectra were acquired at the 1-meter class telescope of the stellar station of the INAF - Osservatorio Astrofisico di Catania, in the period starting from July, the 27th 2005 to November, the 1st 2006.
description: 10 pages, 5 figures, to be published in New Astronomy
Endless Loops: Detecting and Animating Periodic Patterns in Still Images
Creators: name: Halperin, Tavi
name: Hakim, Hanit
name: Vantzos, Orestis
name: Hochman, Gershon
name: Benaim, Netai
name: Sassy, Lior
name: Kupchik, Michael
name: Bibi, Ofir
name: Fried, Ohad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present an algorithm for producing a seamless animated loop from a single image. The algorithm detects periodic structures, such as the windows of a building or the steps of a staircase, and generates a non-trivial displacement vector field that maps each segment of the structure onto a neighboring segment along a user- or auto-selected main direction of motion. This displacement field is used, together with suitable temporal and spatial smoothing, to warp the image and produce the frames of a continuous animation loop. Our cinemagraphs are created in under a second on a mobile device. Over 140,000 users downloaded our app and exported over 350,000 cinemagraphs. Moreover, we conducted two user studies that show that users prefer our method for creating surreal and structured cinemagraphs compared to more manual approaches and compared to previous methods.
description: SIGGRAPH 2021. Project page: https://pub.res.lightricks.com/endless-loops/ . Video: https://youtu.be/8ZYUvxWuD2Y
Combining persistent homology and invariance groups for shape comparison
Creators: name: Frosini, Patrizio
name: Jablonski, Grzegorz
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: ING-INF/05 Sistemi di elaborazione delle informazioni
MAT/03 Geometria

description: In many applications concerning the comparison of data expressed by R^m-valued functions defined on a topological space X, the invariance with respect to a given group G of self-homeomorphisms of X is required. While persistent homology is quite efficient in the topological and qualitative comparison of this kind of data when the invariance group G is the group Homeo(X) of all self-
homeomorphisms of X, this theory is not tailored to manage the case in which G is a proper subgroup of Homeo(X), and its invariance appears too general for several tasks. This paper proposes a way to adapt persistent homology in order
to get invariance just with respect to a given group of self-homeomorphisms of X.
The main idea consists in a dual approach, based on considering the set of all G-invariant non-expanding operators defined on the space of the admissible filtering
functions on X. Some theoretical results concerning this approach are proven and two experiments are presented. An experiment illustrates the application of the proposed technique to compare 1D-signals, when the invariance is expressed by the group of affinities, the group of orientation-preserving affinities, the group of
isometries, the group of translations and the identity group. Another experiment shows how our technique can be used for image comparison.
The economical SU(3)_C X SU(3)_L X U(1)_X model
Creators: name: Dong, P. V.
name: Long, H. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this report the SU(3)_C X SU(3)_L X U(1)_X gauge model with minimal scalar sector, two Higgs triplets, is presented in detail. One of the vacuum expectation values $u$ is a source of lepton-number violations and a reason for mixing among charged gauge bosons--the standard model W^\pm and the bilepton gauge bosons Y^\pm as well as among the neutral non-Hermitian bilepton X^0 and neutral gauge bosons--the Z and the new Z'. An exact diagonalization of the neutral gauge boson sector is derived and bilepton mass splitting is also given. Because of these mixings, the lepton-number violating interactions exist in both charged and neutral gauge boson sectors. Constraints on vacuum expectation values of the model are estimated and u \simeq O(1) GeV, v \simeq v_weak = 246 GeV, and ω\simeq O(1) TeV. In this model there are three physical scalars, two neutral and one charged, and eight Goldstone bosons--the needed number for massive gauge bosons. The minimal scalar sector can provide all fermions including quarks and neutrinos consistent masses in which some of them require one-loop radiative corrections.
description: 89 pages, 26 figures, accepted for publication in Advances in High Energy Physics
Singing and learning (in) latin in medieval Europe
Creators: name: Channen Caldwell, Mary
Publisher: name: Pavia University Press - Edizioni dell'Università degli Studi di Pavia
Year: 2023

description: This article explores how the learning of Latin from childhood as a literary and textual ‘mother tongue’ shaped the contours of Latin-texted song in medieval Europe. I show how, by contrast to most written traditions of vernacular song, medieval Latin song reveals traces of medieval childhoods, adolescent years, and young adulthood spent learning to sing, read, and write in Latin. I illustrate this in three ways: first, by considering notated Latin songs explicitly intended for young people to sing; second, by examining the refraction of Latin language learning in song; and finally, by exposing ways in which Latin song reflects upon or is connected to students, student life, and Latin educational contexts. Connecting the vast and complex tradition of Latin song to the realities of everyday life in medieval Europe and its emphasis on Latin education expands the scope of current scholarship to foreground the roles played by children, adolescents, and students in the creation and performance of Latin song.
description: Philomusica on-line, Vol 22, N° 1 (2023): Musica e letteratura al tempo di Dante
All-Sky Dynamical Response of the Galactic Halo to the Large Magellanic Cloud
Creators: name: Conroy, Charlie
name: Naidu, Rohan P.
name: Garavito-Camargo, Nicolas
name: Besla, Gurtina
name: Zaritsky, Dennis
name: Bonaca, Ana
name: Johnson, Benjamin D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Gravitational interactions between the Large Magellanic Cloud (LMC) and the stellar and dark matter halo of the Milky Way are expected to give rise to disequilibrium phenomena in the outer Milky Way. A local wake is predicted to trail the orbit of the LMC, while a large-scale over-density is predicted to exist across a large area of the northern Galactic hemisphere. Here we present the detection of both the local wake and Northern over-density (hereafter the "collective response") in an all-sky star map of the Galaxy based on 1301 stars at 60
description: To appear in the 22 April 2021 issue of Nature
Rhythm and reception in the age of Dante
Creators: name: Everist, Mark
Publisher: name: Pavia University Press - Edizioni dell'Università degli Studi di Pavia
Year: 2023

description: Almost every genre of polyphonic music from the period c1150 to c1250 was subject to renotation around 1300. Far from providing evidence of how the rhythm and metre of the originals were structured, these sources from c1300 reveal a culture of careful reworking that constitutes a site of reception for organum, conductus and other genres. While some renotations simply update without changing rhythmic profile, others have a profound effect on the metrical profile of the work. Furthermore, in some cases the process of renotating also involved recomposition: mostly the additional third voices to two-voice textures. Generic boundaries were consequently blurred, and the profile of organum and conductus as a mixed form was largely erased, as these updated works co-existed with music that was pathbreaking and innovative c1300.
description: Philomusica on-line, Vol 22, N° 1 (2023): Musica e letteratura al tempo di Dante
Intrinsic Josephson pi-junctions for novel devices
Creators: name: Cedergren, Karin
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2008

description: The properties of YBCO grain boundary Josephson junctions have been studied experimentally. Due to the d-wave symmetry of the order parameter of YBCO it is possible to have junctions with a 0-π phase discontinuity along the barrier profile. Such 0-π-junctions can have a ground state where spontaneous flux is generated at the discontinuity point. This work has been focused on understanding if it is possible to fabricate biepitaxial grain boundary 0-π-junctions that, despite the unavoidable faceting along the grain boundary line, can have a ground state with spontaneously generated flux. The interest in the biepitaxial technique lies in its flexibility for circuit design. The microstructure and transport properties of the grain boundary junctions have been studied in details. Scanning SQUID Microscope imaging has revealed the presence of spontaneous flux in our junctions. Finally the dynamics of 0-π-junctions compared to conventional 0-junctions have been studied and compared to simulation.
Kerguelenia leura Lowry & Stoddart 2010, sp. nov.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Kergueleniidae
Kerguelenia
Kerguelenia leura

description: Kerguelenia leura sp. nov. (Figs 22–24) Type material. HOLOTYPE, female, 3.5 mm, MV J61507, off Freycinet Peninsula, Tasmania, Australia, 42°2.20 'S 148°38.70'E, 800 m, coarse shelly sand, WHOI epibenthic sled, 27 July 1986, M.F. Gomon et al., RV Franklin, stn SLOPE 45. Type locality. Off Freycinet Peninsula, Tasmania, Australia, 42°2.20 'S 148°38.70'E, 800 m depth. Etymology. Named for the steamship Leura which was wrecked near Little Betsey Island, Tasmania in 1886. Diagnostic description. Antenna 1 peduncular article 1 not or only slightly produced dorsodistally. Mandible incisor absent; left lacinia mobilis absent; accessory spine row absent; molar absent. Maxilla 1 outer plate with 5 setal-teeth, setal-teeth without cusps; palp 2-articulate.  Maxilliped palp article 2 longer than broad , length 1.9 x breadth. Gnathopod 1 basis margins subparallel; ischium very long, length 4.4 x breadth; carpus long, length 3.9 x breadth, subequal to (0.9 x) propodus; propodus tapered distally, length 4.6 x breadth. Pereopods 3 and 4 propodus with short distal locking seta.  Pereopod 5 basis expanded posteroventrally , with posteroventral lobe; merus moderately expanded posteriorly. Pereopod 7 basis with posteroventral lobe extending about halfway along merus; merus posteroventral lobe extending more than halfway along, but not beyond, carpus. Pleonite 3 without dorsodistal boss. Epimeron 3 posteroventral corner broadly rounded.  Uropod 1 rami without robust setae .  Uropod 3 biramous ; inner ramus about 0.5 x outer ramus; outer ramus 2-articulate. Telson shorter than broad, length about 0.7 x breadth. Remarks. Kerguelenia leura belongs to a group of species (K. antiborealis, K. japonica, K. kanowna and K. palpalis) in which the basis of pereopod 5 is expanded posteroventrally, antenna 1 peduncular article 1 is not or only slightly produced dorsodistally and uropod 3 is biramous. It can be distinguished from K. palpalis by the longer than broad article 2 of the maxillipedal palp and from the other species in the group by the lack of robust setae on the rami of uropod 1. The non-ovigerous holotype female has an oostegite on pereopod 5 only. Distribution. South-eastern Australia, in 800 m depth.
description: Published as part of Lowry, J. K. & Stoddart, H. E., 2010, Kergueleniidae fam. nov. (Crustacea: Amphipoda: Lysianassoidea) in Australian waters, pp. 1-30 in Zootaxa 2564 (1) on pages 22-24, DOI: 10.11646/zootaxa.2329.1.3, http://zenodo.org/record/5301357
Collective states of the odd-mass nuclei within the framework of the Interacting Vector Boson Model
Creators: name: Ganev, H. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A supersymmetric extension of the dynamical symmetry group $Sp^{B}(12,R)$ of the Interacting Vector Boson Model (IVBM), to the orthosymplectic group $OSp(2Ω/12,R)$ is developed in order to incorporate fermion degrees of freedom into the nuclear dynamics and to encompass the treatment of odd mass nuclei. The bosonic sector of the supergroup is used to describe the complex collective spectra of the neighboring even-even nuclei and is considered as a core structure of the odd nucleus. The fermionic sector is represented by the fermion spin group $SO^{F}(2Ω)\supset SU^{F}(2)$. The so obtained, new exactly solvable limiting case is applied for the description of the nuclear collective spectra of odd mass nuclei. The theoretical predictions for different collective bands in three odd mass nuclei, namely $^{157}Gd$, $^{173}Yb$ and $^{163}Dy$ from rare earth region are compared with the experiment. The $B(E2)$ transition probabilities for the $^{157}Gd$ and $^{163}Dy$ between the states of the ground band are also studied. The important role of the symplectic structure of the model for the proper reproduction of the $B(E2)$ behavior is revealed. The obtained results reveal the applicability of the models extension.
description: 18 pages, 8 figures
The dynamical structure of broken power-law and double power-law models for dark matter haloes
Creators: name: Baes, Maarten
name: Camps, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxy kinematics and gravitational lensing are two complementary ways to constrain the distribution of dark matter on galaxy scales. The typical dark matter density profiles adopted in dynamical studies cannot easily be adopted in lensing studies. Ideally, a mass model should be used that has the global characteristics of realistic dark matter distributions, and that allows for an analytical calculation of the magnifications and deflection angles. A simple model with these properties, the broken-power-law (BPL) model, has very recently been introduced. We examine the dynamical structure of the family of BPL models. We derive simple closed expressions for basic dynamical properties, and study the distribution function under the assumption of velocity isotropy. We find that none of the BPL models with realistic parameters has an isotropic distribution function that is positive over the entire phase space, implying that the BPL models cannot be supported by an isotropic velocity distribution, or models with a more radially anisotropic orbital structure. This result limits the attractiveness of the BPL family as a tool for lensing studies to some degree. More generally, we find that not all members of the general family of double power-law or Zhao models, often used to model dark matter haloes, can be supported by an isotropic or radially anisotropic distribution function. In other words, the distribution function may become negative even for spherically symmetric models with a well-behaved density profile.
description: 12 pages, 5 figures, accepted for publication in MNRAS
The impact of organisation structures on innovation in academic libraries: an examination of theoretical approaches
Creators: name: Oliveiro, Beatrice
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The impact of organisation structures on innovation in academic libraries: an examination of theoretical approaches