cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A SITELLE view of M31's central region - I: Calibrations and radial velocity catalogue of nearly 800 emission-line point-like sources
Creators: name: Martin, Thomas B.
name: Drissen, Laurent
name: Melchior, Anne-Laure
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed description of the wavelength, astrometric and photometric calibration plan for SITELLE, the imaging Fourier transform spectrometer attached to the Canada-France-Hawaii telescope, based on observations of a red (647 - 685 nm) data cube of the central region (11$' \times 11'$) of the Andromeda galaxy. The first application, presented in this paper, is a radial-velocity catalogue (with uncertainties of $\sim 2 - 6$ km/s) of nearly 800 emission-line point-like sources, including $\sim$ 450 new discoveries. Most of the sources are likely planetary nebulae, although we also detect five novae (having erupted in the first 8 months of 2016) and one new supernova remnant candidate.
On Formalisms and Interpretations
Creators: name: Baumann, Veronika
name: Wolf, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the reasons for the heated debates around the interpretations of quantum theory is a simple confusion between the notions of formalism versus interpretation. In this note, we make a clear distinction between them and show that there are actually two inequivalent quantum formalisms, namely the relative-state formalism and the standard formalism with the Born and measurement-update rules. We further propose a different probability rule for the relative-state formalism and discuss how Wigner's-friend-type experiments could show the inequivalence with the standard formalism. The feasibility in principle of such experiments, however, remains an open question.
Quasi-Objective Coherent Structure Diagnostics from Single Trajectories
Creators: name: Haller, George
name: Aksamit, Nikolas
name: Bartos, Alex P. Encinas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We derive measures of local material stretching and rotation that are computable from individual trajectories without reliance on other trajectories or on an underlying velocity field. Both measures are quasi-objective: they approximate objective (i.e., observer-independent) coherence diagnostics in frames satisfying a certain condition. This condition requires the trajectory accelerations to dominate the angular acceleration induced by the spatial mean vorticity. We illustrate in examples how quasi-objective coherence diagnostics highlight elliptic and hyperbolic Lagrangian coherent structures even from very sparse trajectory data.
PSYCHODIAGNOSTICS AND PSYCHOCORRECTION OF PROFESSIONAL DEFORMITY IN FUTURE PEDAGOGUES
Creators: name: Tolanova Mahliyo Muratali kizi Teacher of the Department of Pedagogy and Psychology Andijan State Pedagogical Institute
Publisher: name: Zenodo
Year: 2024

description: Considering professional deformations as changes in the existing structure of activity and personality, negatively affecting labor productivity and interaction with other participants in this process, one cannot disagree that there is an urgent need to introduce an academic discipline on this issue into the state educational standard not only for student teachers

Kеywоrds: psychodiagnostics, psychocorrection, professional deformity, method.
A note on the extended Bruinier-Kohnen conjecture
Creators: name: Amri, Mohammed Amin
name: Ziane, M'hammed
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $f$ be a cuspform of integral half-weight $k+1/2$, whose Fourier coefficients $a(n)$ not necessarily real. We verify partially an extension of a conjecture of Bruinier and Kohnen on the equi-distribution of the signs of $a(n)$ (when are real), conjectured by the first author in \cite{Amri2} for the sequence $\{a(tp^{2ν})\}_{p,\text{prime}}$, where $ν$ an odd positive integer and $t$ a square-free integer.
MPEC 2025-E42 : 2000 WJ63
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
On the Quantum K-Theory of the Quintic
Creators: name: Garoufalidis, Stavros
name: Scheidegger, Emanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Quantum K-theory of a smooth projective variety at genus zero is a collection of integers that can be assembled into a generating series $J(Q,q,t)$ that satisfies a system of linear differential equations with respect to $t$ and $q$-difference equations with respect to $Q$. With some mild assumptions on the variety, it is known that the full theory can be reconstructed from its small $J$-function $J(Q,q,0)$ which, in the case of Fano manifolds, is a vector-valued $q$-hypergeometric function. On the other hand, for the quintic 3-fold we formulate an explicit conjecture for the small $J$-function and its small linear $q$-difference equation expressed linearly in terms of the Gopakumar-Vafa invariants. Unlike the case of quantum knot invariants, and the case of Fano manifolds, the coefficients of the small linear $q$-difference equations are not Laurent polynomials, but rather analytic functions in two variables determined linearly by the Gopakumar-Vafa invariants of the quintic. Our conjecture for the small $J$-function agrees with a proposal of Jockers-Mayr.
Local Gaussian Processes for Efficient Fine-Grained Traffic Speed Prediction
Creators: name: Le, Truc Viet
name: Oentaryo, Richard J.
name: Liu, Siyuan
name: Lau, Hoong Chuin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Traffic speed is a key indicator for the efficiency of an urban transportation system. Accurate modeling of the spatiotemporally varying traffic speed thus plays a crucial role in urban planning and development. This paper addresses the problem of efficient fine-grained traffic speed prediction using big traffic data obtained from static sensors. Gaussian processes (GPs) have been previously used to model various traffic phenomena, including flow and speed. However, GPs do not scale with big traffic data due to their cubic time complexity. In this work, we address their efficiency issues by proposing local GPs to learn from and make predictions for correlated subsets of data. The main idea is to quickly group speed variables in both spatial and temporal dimensions into a finite number of clusters, so that future and unobserved traffic speed queries can be heuristically mapped to one of such clusters. A local GP corresponding to that cluster can then be trained on the fly to make predictions in real-time. We call this method localization. We use non-negative matrix factorization for localization and propose simple heuristics for cluster mapping. We additionally leverage on the expressiveness of GP kernel functions to model road network topology and incorporate side information. Extensive experiments using real-world traffic data collected in the two U.S. cities of Pittsburgh and Washington, D.C., show that our proposed local GPs significantly improve both runtime performances and prediction accuracies compared to the baseline global and local GPs.
Additional file 1: of Translation and validation of the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) version 4 quality of life instrument into Arabic language
Creators: name: Soudy, Hussein
name: Maghfoor, Irfan
name: Tusneem Elhassan
name: Abdullah, Eman
name: Rauf, Shahzad
name: Zahrani, Ahmed Al
name: Akhtar, Saad
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Hematology

description: Translation and validation of the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) Version 4 quality of life instrument into Arabic Language. (DOC 139 kb)
Branch-and-bound for biobjective mixed-integer linear programming
Creators: name: Adelgren, Nathan
name: Gupte, Akshay
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C11, 90C57, 90C29, 90-04, 90-08

description: We present a generic branch-and-bound algorithm for finding all the Pareto solutions of a biobjective mixed-integer linear program. The main contributions are new algorithms for obtaining dual bounds at a node, for checking node fathoming, presolve and duality gap measurement. Our branch-and-bound is predominantly a decision space search method since the branching is performed on the decision variables, akin to single objective problems, although we also sometimes split gaps and branch in the objective space. The various algorithms are implemented using a data structure for storing Pareto sets. Computational experiments are carried out on literature instances and also on a new set of instances that we generate using the MIPLIB benchmark library for single objective problems. We also perform comparisons against the triangle splitting method from literature, which is an objective space search algorithm.
description: 38 pages, 7 figures. Original preprint at Optimization Online, October 2016
Male gender, smoking, younger age, and preoperative pain found to increase postoperative opioid requirements in 592 elective colorectal resections
Creators: name: Karlsdottir, Bergljot R.
name: Wahba, Joyce
name: Hassan, Imran
name: Mott, Sarah L.
name: Gribovskaja-Rupp, Irena
name: Kapadia, Muneera R.
name: Zhou, Peige P.
name: Hrabe, Jennifer
name: Goffredo, Paolo
Publisher: name: Springer Nature
Year: 2022

description:
Purpose With increased awareness of the opioid epidemic, understanding contributing factors to postoperative opioid use is important. The purpose of this study was to evaluate patient and perioperative factors that contribute to postoperative opioid use after colorectal resections and their relation to pre-existing pain conditions and psychiatric diagnoses. Methods A retrospective review was conducted identifying adult patients who underwent elective colorectal resection at a single tertiary center between 2015 and 2018. Patient demographics, preoperative factors, surgical approach, and perioperative pain management were evaluated to determine standard conversion morphine milligram equivalents required for postoperative days 0 to 3 and total hospital stay. Results Five hundred and ninety-two patients: 46% male, median age 58 years undergoing colorectal resections for indications including cancer, inflammatory bowel disease, and diverticulitis were identified. Less opioid use was found to be associated with female gender (β =  − 42), patients who received perioperative lidocaine infusion (β =  − 30), and older adults (equivalents/year) (β =  − 4, all p < 0.01). Preoperative opioid use, preoperative abdominal pain, epidural use, and smoking were all independently associated with increased postoperative opioid requirements. Conclusions In this study of patients undergoing elective colorectal resection, factors that were associated with higher perioperative opioid use included male gender, smoking, younger age, preoperative opioid use, preoperative abdominal pain, and epidural use. Perioperative administration of lidocaine was associated with decreased opioid requirements. Understanding risk factors and stratifying postoperative pain regimens may aid in improved pain control and decrease long-term dependency.
On complete gradient Schouten solitons
Creators: name: Borges, Valter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35Q51, 53B20, 53C20, 53C25, 34A40

description: In this paper, we prove an optimal inequality between the potential function of a complete Schouten soliton and the norm of its gradient. We also prove that these metrics have bounded scalar curvature of defined sign. As an application, we prove that the potential function of a Shrinking Schouten soliton grows linearly and provide optimal estimates for the growth of the volume of geodesic balls, without any further assumption.
description: Minor corrections
Multifractal finite-size scaling at the Anderson transition in the unitary symmetry class
Creators: name: Lindinger, Jakob
name: Rodríguez, Alberto
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We use multifractal finite-size scaling to perform a high-precision numerical study of the critical properties of the Anderson localization-delocalization transition in the unitary symmetry class, considering the Anderson model including a random magnetic flux. We demonstrate the scale invariance of the distribution of wavefunction intensities at the critical point and study its behavior across the transition. Our analysis, involving more than $4\times10^6$ independently generated wavefunctions of system sizes up to $L^3=150^3$, yields accurate estimates for the critical exponent of the localization length, $ν=1.446 (1.440,1.452)$, the critical value of the disorder strength and the multifractal exponents.
description: 11 pages, 8 figures. arXiv admin note: text overlap with arXiv:1107.5736
Additional file 4: of Inflammatory markers before and after farrowing in healthy sows and in sows affected with postpartum dysgalactia syndrome
Creators: name: Kaiser, Marianne
name: Jacobson, Magdalena
name: Andersen, Pia
name: Bækbo, Poul
name: Cerón, José
name: Dahl, Jan
name: Escribano, Damián
name: Jacobsen, Stine
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Hemoglobin (Hb). Hb concentration (10-3 mol/L) in sows with postpartum dysgalactia syndrome (PDS+, red) and healthy sows (PDS-, blue) sampled from 60 h before until 36 h after parturition (time interval A-G). Each dot represents the exact sample time of each observation relative to the exact birth of the first piglet (0 h). The lines show the mean value. Normal range is 6.2 – 9.4 × 10-3 mol/L. (DOCX 31 kb)
The Shark Random Swim (Lévy flight with memory)
Creators: name: Businger, Silvia
Publisher: name: arXiv
Year: 2017
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: The Elephant Random Walk (ERW), first introduced by Schütz and Trimper (2004), is a one-dimensional simple random walk on $ \mathbb{Z} $ having a memory about the whole past. We study the Shark Random Swim, a random walk whose steps are $ α$-stable distributed with memory about the whole past. In contrast with the ERW, the steps of the Shark Random Swim have a heavy tailed distribution. Our aim in this work is to study the impact of the heavy tailed step distributions on the asymptotic behavior of the random walk. We shall see that, as for the ERW, the asymptotic behavior of the Shark Random Swim depends on its memory parameter $ p $, and that a phase transition can be observed at the critical value $ p=\frac{1}α $.
description: Added an extension to convergence of the finite dimensional distributions and corrected a mistake in Lemma 11
A Note on Multi-Oriented Graph Complexes and Deformation Quantization of Lie Bialgebroids
Creators: name: Morand, Kevin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Universal solutions to deformation quantization problems can be conveniently classified by the cohomology of suitable graph complexes. In particular, the deformation quantizations of (finite-dimensional) Poisson manifolds and Lie bialgebras are characterised by an action of the Grothendieck-Teichmüller group via one-colored directed and oriented graphs, respectively. In this note, we study the action of multi-oriented graph complexes on Lie bialgebroids and their "quasi" generalisations. Using results due to T. Willwacher and M. Zivković on the cohomology of (multi)-oriented graphs, we show that the action of the Grothendieck-Teichmüller group on Lie bialgebras and quasi-Lie bialgebras can be generalised to quasi-Lie bialgebroids via graphs with two colors, one of them being oriented. However, this action generically fails to preserve the subspace of Lie bialgebroids. By resorting to graphs with two oriented colors, we instead show the existence of an obstruction to the quantization of a generic Lie bialgebroid in the guise of a new $\mathsf{Lie}_\infty$-algebra structure non-trivially deforming the "big bracket" for Lie bialgebroids. This exotic $\mathsf{Lie}_\infty$-structure can be interpreted as the equivalent in $d=3$ of the Kontsevich-Shoikhet obstruction to the quantization of infinite-dimensional Poisson manifolds (in $d=2$). We discuss the implications of these results with respect to a conjecture due to P. Xu regarding the existence of a quantization map for Lie bialgebroids.
IntSGD: Adaptive Floatless Compression of Stochastic Gradients
Creators: name: Mishchenko, Konstantin
name: Wang, Bokun
name: Kovalev, Dmitry
name: Richtárik, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose a family of adaptive integer compression operators for distributed Stochastic Gradient Descent (SGD) that do not communicate a single float. This is achieved by multiplying floating-point vectors with a number known to every device and then rounding to integers. In contrast to the prior work on integer compression for SwitchML by Sapio et al. (2021), our IntSGD method is provably convergent and computationally cheaper as it estimates the scaling of vectors adaptively. Our theory shows that the iteration complexity of IntSGD matches that of SGD up to constant factors for both convex and non-convex, smooth and non-smooth functions, with and without overparameterization. Moreover, our algorithm can also be tailored for the popular all-reduce primitive and shows promising empirical performance.
description: Spotlight at ICLR 2022. 27 pages, 6 figures, 3 algorithms
Time-Dependent Cooling in Photoionized Plasma
Creators: name: Gnat, Orly
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: I explore the thermal evolution and ionization states in gas cooling from an initially hot state in the presence of external photoionizing radiation. I compute the equilibrium and nonequilibrium cooling efficiencies, heating rates, and ion fractions for low-density gas cooling while exposed to the ionizing metagalactic background radiation at various redshifts (z=0 - 3), for a range of temperatures (1e8-1e4 K), densities (1e-7 - 1e3 cm^-3) and metallicities (1e-3 - 2 times solar). The results indicate the existence of a threshold ionization parameter, above which the cooling efficiencies are very close to those in photoionization equilibrium (so that departures from equilibrium may be neglected), and below which the cooling efficiencies resemble those in collisional time-dependent gas cooling with no external radiation (and are thus independent of density)
D1.4 - Report on WMO GTS datasets made available for non-GTS connected users and on new datasets ingested into WMO GTS based on user requirements
Creators: name: Godøy, Øystein
Publisher: name: Zenodo
Year: 2024
Subjects: deliverable

description: he Arctic PASSION project is described in more detail in the project website which is available at https://arcticpassion.eu/. The purpose of Arctic PASSION is creation and implementation of a coherent, integrated Arctic observing system. This implies integrating already existing observing systems in a system of systems approach as well addressing gaps in the current observing system. Arctic PASSION will generate data through the project implementation, but equally important is to map and establishaccess to already existing datasets in support of the pilot services and other activities of Arctic PASSION. Arctic PASSION promised in the proposal to make existing data, that are currently difficult to access, more readily available. This was specifically referring to data available in the real time exchange of data within the world meteorological Organisation (WMO) and is limited to the data that are published as free and open data. A more thorough description of the real time exchange of data and which data that are available is given in section 2.
Additional file 1: of Rethinking the extrinsic incubation period of malaria parasites
Creators: name: Ohm, Johanna
name: Baldini, Francesco
name: Barreaux, Priscille
name: Lefevre, Thierry
name: Lynch, Penelope
name: Eunho Suh
name: Whitehead, Shelley
name: Thomas, Matthew
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Ecology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Text. Numerical approximation of proportion of vectors surviving to become infectious assuming logistic EIP. Table S1. Comparison of results for approximation of probability of surviving from infection to infectiousness using logistic model. Results used for plots in main text are highlighted. Chosen D max and δ give results consistent to 6dp with results from ten times smaller δ and D max of 100 vs 30, indicating that for the intended purpose, no material benefit would be gained from using smaller δ or larger Dmax. Table S2. The temperature-related values used for k, tM, and μ , taken from Shapiro et al [23]. (DOC 68 kb)
Highly accurate bound state calculations of the two-center molecular ions by using the universal variational expansion for three-body systems
Creators: name: Frolov, Alexei M
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The universal variational expansion for the non-relativistic three-body systems is explicitly constructed. Three-body universal expansion can be used to perform highly accurate numerical computations of the bound state spectra in arbitrary three-body systems, including Coulomb three-body systems with arbitrary particle masses and electric charges. Our main interest is related to the adiabatic three-body systems which contain one bound electron and two heavy nuclei of hydrogen isotopes: the protium $p$, deuterium $d$ and tritium $t$. We also consider the analogous (model) hydrogen ion ${}^{\infty}$H$^{+}_2$ with the two infinitely heavy nuclei. PACS number(s): 36.10.-k and 36.10.Dr
description: version1
Measuring the cosmic proper distance from fast radio bursts
Creators: name: Yu, H.
name: Wang, F. Y.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The cosmic proper distance $d_P$ is a fundamental distance in the Universe. Unlike the luminosity and angular diameter distances, which correspond to the angular size, the proper distance is the length of light path from the source to observer. However, the proper distance has not been measured before. The recent redshift measurement of a repeat fast radio burst (FRB) can shed light on the proper distance. We show that the proper distance-redshift relation can indeed be derived from dispersion measures (DMs) of FRBs with measured redshifts. From Monte Carlo simulations, we find that about 500 FRBs with DM and redshift measurements can tightly constrain the proper distance-redshift relation. We also show that the curvature of our Universe can be constrained with a model-independent method using this derived proper distance-redshift relation and the observed angular diameter distances. Owing to the high event rate of FRBs, hundreds of FRBs can be discovered in the future by upcoming instruments. The proper distance will play an important role in investigating the accelerating expansion and the geometry of the Universe.
description: 9 pages, 4 figures, proof version
Verifiable Threshold Quantum Secret Sharing with Sequential Communication
Creators: name: Lu, Changbin
name: Miao, Fuyou
name: Hou, Junpeng
name: Meng, Keju
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A ($t$, $n$) threshold quantum secret sharing (QSS) is proposed based on a single $d$-level quantum system. It enables the ($t$, $n$) threshold structure based on Shamir's secret sharing and simply requires sequential communication in $d$-level quantum system to recover secret. Besides, the scheme provides a verification mechanism which employs an additional qudit to detect cheats and eavesdropping during secret reconstruction, and allows a participant to use the share repeatedly. Analyses show that the proposed scheme is resistant to typical attacks. Moreover, the scheme is salable in participant number and easier to realize compared to related schemes. More generally, our scheme also presents a generic method to construct new ($t$, $n$) threshold QSS schemes based on $d$-level quantum system from other classical threshold secret sharing.
The Erdős--Faber--Lovász Conjecture revisited
Creators: name: Gauci, John Baptist
name: Zerafa, Jean Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15

description: The Erdős--Faber--Lovász Conjecture, posed in 1972, states that if a graph $G$ is the union of $n$ cliques of order $n$ (referred to as defining $n$-cliques) such that two cliques can share at most one vertex, then the vertices of $G$ can be properly coloured using $n$ colours. Although still open after almost 50 years, it can be easily shown that the conjecture is true when every shared vertex belongs to exactly two defining $n$-cliques. We here provide a quick and easy algorithm to colour the vertices of $G$ in this case, and discuss connections with clique-decompositions and edge-colourings of graphs.
description: 6 pages
Will You Come Back to Contribute? Investigating the Inactivity of OSS Core Developers in GitHub
Creators: name: Calefato, Fabio
name: Gerosa, Marco Aurelio
name: Iaffaldano, Giuseppe
name: Lanubile, Filippo
name: Steinmacher, Igor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Several Open Source Software (OSS) projects depend on the continuity of their development communities to remain sustainable. Understanding how developers become inactive or why they take breaks can help communities prevent abandonment and incentivize developers to come back. In this paper, we propose a novel method to identify developers' inactive periods by analyzing the individual rhythm of contributions to the projects. Using this method, we quantitatively analyze the inactivity of core developers in 18 OSS organizations hosted on GitHub. We also survey core developers to receive their feedback about the identified breaks and transitions. Our results show that our method was effective for identifying developers' breaks. About 94% of the surveyed core developers agreed with our state model of inactivity; 71% and 79% of them acknowledged their breaks and state transition, respectively. We also show that all core developers take breaks (at least once) and about a half of them (~45%}) have completely disengaged from a project for at least one year. We also analyzed the probability of transitions to/from inactivity and found that developers who pause their activity have a ~35-55\% chance to return to an active state; yet, if the break lasts for a year or longer, then the probability of resuming activities drops to ~21-26%, with a ~54% chance of complete disengagement. These results may support the creation of policies and mechanisms to make OSS community managers aware of breaks and potential project abandonment.
description: Empirical Software Engineering, to appear
Semianalytic calculation of cosmic microwave background anisotropies from wiggly and superconducting cosmic strings
Creators: name: Rybak, I. Yu.
name: Avgoustidis, A.
name: Martins, C. J. A. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study how the presence of world-sheet currents affects the evolution of cosmic string networks, and their impact on predictions for the cosmic microwave background (CMB) anisotropies generated by these networks. We provide a general description of string networks with currents and explicitly investigate in detail two physically motivated examples: wiggly and superconducting cosmic string networks. By using a modified version of the CMBact code, we show quantitatively how the relevant network parameters in both of these cases influence the predicted CMB signal. Our analysis suggests that previous studies have overestimated the amplitude of the anisotropies for wiggly strings. For superconducting strings the amplitude of the anisotropies depends on parameters which presently are not well known - but which can be measured in future high-resolution numerical simulations.
description: 20 pages, 10 figures. Fixed typos in eqs.(3), (5)-(7), (12)-(14), (29), (32)
Are they really stronger? Comparing effects of semantic variables in speeded deadline and standard picture naming
Creators: name: Lampe, Leonie
name: Hameau, Solene
name: Nickels, Lyndsey
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Linguistics
subject: FOS: Languages and literature
subject: Arts and Humanities
subject: Psycholinguistics and Neurolinguistics
subject: Social and Behavioral Sciences
subject: cognitive control
subject: input gain
subject: picture naming
subject: semantic variables
subject: speeded picture naming
subject: task comparison

description: Investigations of effects of semantic variables on picture naming have often been inconclusive, with some studies reporting significant and others non-significant effects. Here we test if the specific naming tasks used could be an explanation for these discrepancies: While most previous studies have used standard picture naming, other studies, particularly those reporting significant effects of semantic variables, have used speeded naming tasks that require participants to prioritise naming speed over accuracy. This task has been suggested to cause enhanced effects of item-inherent word characteristics due to disruptions of cognitive control and resulting modulations of responsiveness to input. To test this, we compared effects of six feature-based semantic variables in standard and speeded deadline picture naming.
title: 03_0383
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Stochasticity helps to navigate rough landscapes: comparing gradient-descent-based algorithms in the phase retrieval problem
Creators: name: Mignacco, Francesca
name: Urbani, Pierfrancesco
name: Zdeborová, Lenka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (cs.LG)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper we investigate how gradient-based algorithms such as gradient descent, (multi-pass) stochastic gradient descent, its persistent variant, and the Langevin algorithm navigate non-convex loss-landscapes and which of them is able to reach the best generalization error at limited sample complexity. We consider the loss landscape of the high-dimensional phase retrieval problem as a prototypical highly non-convex example. We observe that for phase retrieval the stochastic variants of gradient descent are able to reach perfect generalization for regions of control parameters where the gradient descent algorithm is not. We apply dynamical mean-field theory from statistical physics to characterize analytically the full trajectories of these algorithms in their continuous-time limit, with a warm start, and for large system sizes. We further unveil several intriguing properties of the landscape and the algorithms such as that the gradient descent can obtain better generalization properties from less informed initializations.
description: 28 pages, 11 figures
George Cecil Lowson: Radar Technician
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: George Cecil Lowson was born on 30th July 1924 in Tow Law, County Durham. He joined the RAF from the age of 18 and served from February 1943 to March 1947.On joining, because of his high academic abilities, he was selected for training as a technician on top secret radar equipment. The security of this technology was so high that even the airbase commander was not allowed in the area of the base where George and his colleagues conducted their work. Part of his service was spent in Naples, Italy, after the war.George had the rank of Corporal and received the War medal.
George's certificate of service reads:
 "That this NCO has proved himself a great asset to his station, being a very good administrator and excellent radar mechanic with a sound knowledge of radar principles."Following George's war service, he became a British Rail clerk and settled in South Shields, marrying his sweetheart, Maureen Davidson, originally from Aberdeen. On the 3rd of September 1951, George was able to put the valuable experience he gained in the war by enrolling on a course for radio service work at South Shields Marine Technical College, achieving a first-class result. In 1956, he went on to secure a position at Morganite Resistors, later Alan Bradley, as a process control chemist working on the production of high quality variable resistors.Amongst the items was a souvenir tribute to the men and women of Tow Law, Satley Village and Thornley Village, who served and died in those villages. The book was made with contributions from a few different groups, one of them being a smoker’s club!Attached are audio and transcription.
Liouvillian spectral collapse in the Scully-Lamb laser model
Creators: name: Minganti, Fabrizio
name: Arkhipov, Ievgen I.
name: Miranowicz, Adam
name: Nori, Franco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Phase transitions of thermal systems and the laser threshold were first connected more than forty years ago. Despite the nonequilibrium nature of the laser, the Landau theory of thermal phase transitions, applied directly to the Scully-Lamb laser model (SLLM), indicates that the laser threshold is a second-order phase transition, associated with a $U(1)$ spontaneous symmetry breaking (SSB). To capture the genuine nonequilibrium phase transition of the SLLM (i.e., a single-mode laser without a saturable absorber), here we employ a quantum theory of dissipative phase transitions. Our results confirm that the $U(1)$ SSB can occur at the lasing threshold but, in contrast to the Landau theory and semiclassical approximation, they signal that the SLLM "fundamental" transition is a different phenomenon, which we call Liouvillian spectral collapse; that is, the emergence of diabolic points of infinite degeneracy. By considering a generalized SLLM with additional dephasing, we witness a second-order phase transition, with a Liouvillian spectral collapse, but in the absence of symmetry breaking. Most surprisingly, the phase transition corresponds to the emergence of dynamical multistability even without SSB. Normally, bistability is suppressed by quantum fluctuations, while in this case, the very presence of quantum fluctuations enables bistability. This rather anomalous bistability, characterizing the truly dissipative and quantum origin of lasing, can be an experimental signature of our predictions, and we show that it is associated with an emergent dynamical hysteresis.
description: 20 pages, 11 figures, minor typos corrected
Additional file 1: of Serum proton NMR metabolomics analysis of human lung cancer following microwave ablation
Creators: name: Hu, Jian-Ming
name: Huang-Tao Sun
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Table S1. Potential serum biomarkers identified by 1H NMR and their means and standard deviation values for each group. Table S2. Pathway analysis and the altered pathways using MetaboAnalyst. Figure S1. PCA scores plot of 1H NMR spectra from control, NSCLC and MWA groups. Figure S2. Scatter plots of the metabolites to show the interindividual variation. Gray circle: CTRL group, green circle: NSCLC group, red circle: MWA group. (DOCX 554 kb)
Electron-nucleus scalar-pseudoscalar interaction in PbF: Z-vector study in the relativistic coupled-cluster framework
Creators: name: Sasmal, Sudip
name: Talukdar, Kaushik
name: Nayak, Malaya K.
name: Vaval, Nayana
name: Pal, Sourav
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The scalar-pseudoscalar interaction constant of PbF in its ground state electronic configuration is calculated using the Z-vector method in the relativistic coupled-cluster framework. The precise calculated value is very important to set upper bound limit on P,T-odd scalar-pseudoscalar interaction constant, k_s, from the experimentally observed P,T-odd frequency shift. Further, the ratio of the effective electric field to the scalar-pseudoscalar interaction constant is also calculated which is required to get an independent upper bound limit of electric dipole moment of electron, d_e, and k_s and how these (d_e and k_s) are interrelated is also presented here.
description: 6 pages, 1 figures
Additional file 3: of Inflammatory markers before and after farrowing in healthy sows and in sows affected with postpartum dysgalactia syndrome
Creators: name: Kaiser, Marianne
name: Jacobson, Magdalena
name: Andersen, Pia
name: Bækbo, Poul
name: Cerón, José
name: Dahl, Jan
name: Escribano, Damián
name: Jacobsen, Stine
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Total protein (TP). TP concentration (100 g/L) in sows with postpartum dysgalactia syndrome (PDS+, red) and healthy sows (PDS-, blue) sampled from 60 h before until 36 h after parturition (time interval A-G). Each dot represents the exact sample time of each observation relative to the exact birth of the first piglet (0 h). The lines show the mean value. (DOCX 33 kb)
Results on MeV-scale dark matter from a gram-scale cryogenic calorimeter operated above ground
Creators: name: Angloher, G.
name: Bauer, P.
name: Bento, A.
name: Bucci, C.
name: Canonica, L.
name: Defay, X.
name: Erb, A.
name: Feilitzsch, F. v.
name: Iachellini, N. Ferreiro
name: Gorla, P.
name: Gütlein, A.
name: Hauff, D.
name: Jochum, J.
name: Kiefer, M.
name: Kluck, H.
name: Kraus, H.
name: Lanfranchi, J. -C.
name: Loebell, A. Langenkämper J.
name: Mancuso, M.
name: Mondragon, E.
name: Münster, A.
name: Oberauer, L.
name: Pagliarone, C.
name: Petricca, F.
name: Potzel, W.
name: Pröbst, F.
name: Puig, R.
name: Reindl, F.
name: Rothe, J.
name: Schäffner, K.
name: Schieck, J.
name: Schönert, S.
name: Seidel, W.
name: Stahlberg, M.
name: Stodolsky, L.
name: Strandhagen, C.
name: Strauss, R.
name: Tanzke, A.
name: Thi, H. H. Trinh
name: Türkoglu, C.
name: Uffinger, M.
name: Ulrich, A.
name: Usherov, I.
name: Wawoczny, S.
name: Willers, M.
name: Wüstrich, M.
name: Zöller, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Models for light dark matter particles with masses below 1 GeV/c$^2$ are a natural and well-motivated alternative to so-far unobserved weakly interacting massive particles. Gram-scale cryogenic calorimeters provide the required detector performance to detect these particles and extend the direct dark matter search program of CRESST. A prototype 0.5 g sapphire detector developed for the $ν$-cleus experiment has achieved an energy threshold of $E_{th}=(19.7\pm 0.9)$ eV, which is one order of magnitude lower than previous results and independent of the type of particle interaction. The result presented here is obtained in a setup above ground without significant shielding against ambient and cosmogenic radiation. Although operated in a high-background environment, the detector probes a new range of light-mass dark matter particles previously not accessible by direct searches. We report the first limit on the spin-independent dark matter particle-nucleon cross section for masses between 140 MeV/c$^2$ and 500 MeV/c$^2$.
description: 6 pages, 6 figures, v3: ancillary files added, v4: high energy spectrum (0.6-12keV) added to ancillary files
Additional file 1 of Healthy lifestyle consultation based on traditional Chinese medicine versus routine patient education in the treatment of idiopathic sudden sensorineural hearing loss after failure of systemic therapy: study protocol for a clinical randomised trial
Creators: name: Fei, Ying-ping
name: Zheng, Yun
name: Lai, Dan
name: Zhong, Ping
name: Lu, Jing-zhe
name: Li, Gang
name: Liu, Peng
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. SPIRIT checklist: recommended items to address in a clinical trial protocol and related documents.
Boolean Hierarchical Tucker Networks on Quantum Annealers
Creators: name: Pelofske, Elijah
name: Hahn, Georg
name: O'Malley, Daniel
name: Djidjev, Hristo N.
name: Alexandrov, Boian S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum annealing is an emerging technology with the potential to solve some of the computational challenges that remain unresolved as we approach an era beyond Moore's Law. In this work, we investigate the capabilities of the quantum annealers of D-Wave Systems, Inc., for computing a certain type of Boolean tensor decomposition called Boolean Hierarchical Tucker Network (BHTN). Boolean tensor decomposition problems ask for finding a decomposition of a high-dimensional tensor with categorical, [true, false], values, as a product of smaller Boolean core tensors. As the BHTN decompositions are usually not exact, we aim to approximate an input high-dimensional tensor by a product of lower-dimensional tensors such that the difference between both is minimized in some norm. We show that BHTN can be calculated as a sequence of optimization problems suitable for the D-Wave 2000Q quantum annealer. Although current technology is still fairly restricted in the problems they can address, we show that a complex problem such as BHTN can be solved efficiently and accurately.