cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Using the Regular Chains Library to build cylindrical algebraic decompositions by projecting and lifting
Creators: name: England, Matthew
name: Wilson, David
name: Bradford, Russell
name: Davenport, James H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences
subject: G.4; I.1.2
subject: 68W30, 03C10

description: Cylindrical algebraic decomposition (CAD) is an important tool, both for quantifier elimination over the reals and a range of other applications. Traditionally, a CAD is built through a process of projection and lifting to move the problem within Euclidean spaces of changing dimension. Recently, an alternative approach which first decomposes complex space using triangular decomposition before refining to real space has been introduced and implemented within the RegularChains Library of Maple. We here describe a freely available package ProjectionCAD which utilises the routines within the RegularChains Library to build CADs by projection and lifting. We detail how the projection and lifting algorithms were modified to allow this, discuss the motivation and survey the functionality of the package.
HPA Cell Segmentation (DPNUnet)
Creators: name: Xu, Hao
name: Ouyang, Wei
Publisher: name: Zenodo
Year: 2022
Subjects: bioimage.io
bioimage.io:model
nucleus-segmentation

description: Download RDF Package

description: Cell segmentation model for segmenting images from the Human Protein Atlas (Uploaded via https://bioimage.io)
Local Energy Distribution Based Hyperparameter Determination for Stochastic Simulated Annealing
Creators: name: Onizawa, Naoya
name: Kuroki, Kyo
name: Shin, Duckgyu
name: Hanyu, Takahiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper presents a local energy distribution based hyperparameter determination for stochastic simulated annealing (SSA). SSA is capable of solving combinatorial optimization problems faster than typical simulated annealing (SA), but requires a time-consuming hyperparameter search. The proposed method determines hyperparameters based on the local energy distributions of spins (probabilistic bits). The spin is a basic computing element of SSA and is graphically connected to other spins with its weights. The distribution of the local energy can be estimated based on the central limit theorem (CLT). The CLT-based normal distribution is used to determine the hyperparameters, which reduces the time complexity for hyperparameter search from O(n^3) of the conventional method to O(1). The performance of SSA with the determined hyperparameters is evaluated on the Gset and K2000 benchmarks for maximum-cut problems. The results show that the proposed method achieves mean cut values of approximately 98% of the best-known cut values.
description: 15 pages
Quantum Simulation of Polarized Light-induced Electron Transfer with A Trapped-ion Qutrit System
Creators: name: Sun, Ke
name: Fang, Chao
name: Kang, Mingyu
name: Zhang, Zhendian
name: Zhang, Peng
name: Beratan, David N.
name: Brown, Kenneth R.
name: Kim, Jungsang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Electron transfer within and between molecules is crucial in chemistry, biochemistry, and energy science. This study describes a quantum simulation method that explores the influence of light polarization on the electron transfer between two molecules. By implementing precise and coherent control among the quantum states of trapped atomic ions, we can induce quantum dynamics that mimic the electron transfer dynamics in molecules. We use $3$-level systems (qutrits), rather than traditional two-level systems (qubits) to enhance the simulation efficiency and realize high-fidelity simulations of electron transfer dynamics. We treat the quantum interference between the electron coupling pathways from a donor with two degenerate excited states to an acceptor and analyze the transfer efficiency. We also examine the potential error sources that enter the quantum simulations. The trapped ion systems have favorable scalings with system size compared to those of classical computers, promising access to electron-transfer simulations of increasing richness.
description: 9 pages, 6 figures
Additional file 2 of Construction of anti-codon table of the plant kingdom and evolution of tRNA selenocysteine (tRNASec)
Creators: name: Mohanta, Tapan Kumar
name: Awdhesh Kumar Mishra
name: Hashem, Abeer
name: Abd_Allah, Elsayed Fathi
name: Khan, Abdul Latif
name: Al-Harrasi, Ahmed
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary Figure 1. Multiple sequence alignment of plant tRNASec genes. Alignment revealed the presence of conserved nucleotide sequences in the anti-codon loop and pseudo-uridine loop region (marked red). The Multiple sequence alignment was conducted using Multalin software ( http://multalin.toulouse.inra.fr/multalin/ ).
HPA Cell Segmentation (DPNUnet)
Creators: name: Xu, Hao
name: Ouyang, Wei
Publisher: name: Zenodo
Year: 2023
Subjects: bioimage.io
bioimage.io:model
torchscript
unet
nucleus-segmentation
deepimagej
pytorch

description: Download RDF Package

description: Cell segmentation model for segmenting images from the Human Protein Atlas (Uploaded via https://bioimage.io)
Strong maximum a posteriori estimation in Banach spaces with Gaussian priors
Creators: name: Lambley, Hefin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 28C20, 60B11, 62F10, 62F15, 62G05

description: This article shows that a large class of posterior measures that are absolutely continuous with respect to a Gaussian prior have strong maximum a posteriori estimators in the sense of Dashti et al. (2013). This result holds in any separable Banach space and applies in particular to nonparametric Bayesian inverse problems with additive noise. When applied to Bayesian inverse problems, this significantly extends existing results on maximum a posteriori estimators by relaxing the conditions on the log-likelihood and on the space in which the inverse problem is set.
description: 21 pages
Three-wave interaction and Manley-Rowe relations in quantum hydrodynamics
Creators: name: Wallin, Erik
name: Zamanian, Jens
name: Brodin, Gert
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The theory for nonlinear three-wave interaction in magnetized plasmas is reconsidered using quantum hydrodynamics. The general coupling coefficients are calculated for a generalized Bohm de Broglie term. It is found that the Manley-Rowe relations are fulfilled only if the form of the particle dispersive term coincides with the standard expression. The implications of our results are discussed.
description: 14 pages
SSTM: Spatiotemporal Recurrent Transformers for Multi-frame Optical Flow Estimation
Creators: name: Ferede, Fisseha Admasu
name: Balasubramanian, Madhusudhanan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Inaccurate optical flow estimates in and near occluded regions, and out-of-boundary regions are two of the current significant limitations of optical flow estimation algorithms. Recent state-of-the-art optical flow estimation algorithms are two-frame based methods where optical flow is estimated sequentially for each consecutive image pair in a sequence. While this approach gives good flow estimates, it fails to generalize optical flows in occluded regions mainly due to limited local evidence regarding moving elements in a scene. In this work, we propose a learning-based multi-frame optical flow estimation method that estimates two or more consecutive optical flows in parallel from multi-frame image sequences. Our underlying hypothesis is that by understanding temporal scene dynamics from longer sequences with more than two frames, we can characterize pixel-wise dependencies in a larger spatiotemporal domain, generalize complex motion patterns and thereby improve the accuracy of optical flow estimates in occluded regions. We present learning-based spatiotemporal recurrent transformers for multi-frame based optical flow estimation (SSTMs). Our method utilizes 3D Convolutional Gated Recurrent Units (3D-ConvGRUs) and spatiotemporal transformers to learn recurrent space-time motion dynamics and global dependencies in the scene and provide a generalized optical flow estimation. When compared with recent state-of-the-art two-frame and multi-frame methods on real world and synthetic datasets, performance of the SSTMs were significantly higher in occluded and out-of-boundary regions. Among all published state-of-the-art multi-frame methods, SSTM achieved state-of the-art results on the Sintel Final and KITTI2015 benchmark datasets.
description: 5 tables, 7 figures, MS thesis
Scaling Description of Dynamical Heterogeneity and Avalanches of Relaxation in Glass-Forming Liquids
Creators: name: Tahaei, Ali
name: Biroli, Giulio
name: Ozawa, Misaki
name: Popović, Marko
name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We provide a theoretical description of dynamical heterogeneities in glass-forming liquids, based on the premise that relaxation occurs via local rearrangements coupled by elasticity. In our framework, the growth of the dynamical correlation length $ξ$ and of the correlation volume $χ_4$ are controlled by a zero-temperature fixed point. We connect this critical behavior to the properties of the distribution of local energy barriers at zero temperature. Our description makes a direct connection between dynamical heterogeneities and avalanche-type relaxation associated to dynamic facilitation, allowing us to relate the size distribution of heterogeneities to their time evolution. Within an avalanche, a local region relaxes multiple times, the more the larger is the avalanche. This property, related to the nature of the zero-temperature fixed point, directly leads to decoupling of particle diffusion and relaxation time (the so-called Stokes-Einstein violation). Our most salient predictions are tested and confirmed by numerical simulations of scalar and tensorial thermal elasto-plastic models.
Influence of husbandry procedures on mouse locomotor activity
Creators: name: Reljic, D
name: Guhad, F A
name: Stodulski, G
name: Hau, J
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: The currently used raL models of obesity and diabetes are derived from either Zucker or from Koletsky rats. Recently, we identified a spontaneous obese rat from out Wistar colony which is maintained as an inbred stock for the past 75 years. Initially, one of the male progeny in a litter was observed to have abnormal body weight for its age. The parents of this ral were identified, the progeny selectively bred, and a colony has been developed. This is designated as WNIN-0b. The colony is maintained by mating heterozygous animals (+/ob), as the homozygous (ob/ob) were found to be infertile. The trait is carried as an autosomal recessive mutation and the colony is currenfly in F7 generation. Obesity is visible in these mutants around 35 days of age. They are hyperphagic and reach a body weight of 500—600 g by 105 days of age. “Kinky” tail is characteristic of this mutant and this is visible around 50-60 days. Sexual maturity is delayed in female obese mutants, as judged by the day of vaginal opening. The animals are cuglyccmic and show hyperinsulinaemia, hypertriglyceridaemia, arid hypercholesterolemia. Another mutant showing hyperglycemia is also obtained from the obese colony. Unlike earlier models which are essentially derived from a randomAbred stock, this is the first report of a rat obese model, developed spontaneously from an inbred strain.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 23 No. 3 (1996)
Observable proton decay and gauge coupling unification in the improved missing doublet SU(5) model
Creators: name: Mehmood, Maria
name: Rehman, Mansoor Ur
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of observable proton decay within the improved missing doublet model (IMDM75), which utilizes a Higgs in 75 representation for $SU(5)$ gauge symmetry breaking. The realization of observable proton decay in IMDM75 is made feasible primarily due to chirality nonflipping color-triplet mediation, while chirality flipping mediation is adequately suppressed. Our predictions suggest a range of proton lifetimes between $10^{34}-10^{36}$ yr, which can be observed in upcoming experiments such as Hyper-K and DUNE, for a corresponding range of color-triplet mass parameter $M_T$ in the order of $10^{11}-10^{14}$GeV. IMDM75 is shown to offer unique predictions for branching ratios when compared to other grand unified theory models. Finally, a realization of successful gauge coupling unification is achieved, even with the presence of particles at intermediate scales.
description: 13 pages, 13 figures
Additional file 3 of Construction of anti-codon table of the plant kingdom and evolution of tRNA selenocysteine (tRNASec)
Creators: name: Mohanta, Tapan Kumar
name: Awdhesh Kumar Mishra
name: Hashem, Abeer
name: Abd_Allah, Elsayed Fathi
name: Khan, Abdul Latif
name: Al-Harrasi, Ahmed
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Supplementary Figure 2. Deletion, duplication, and codivergence events in tRNASec in 128 analysed plant species. The gene tree of tRNASec was reconciled with the species tree to identify deletion, duplication, and codivergence events in tRNASec genes. Results of the analysis indicated that deletion events in tRNASec were predominant over duplication and co-divergence events. Analysis was conducted using Notung software version 2.9.
Atherosclerosis in Watanabe heritable hyperlipidemic rabbit arteries
Creators: name: Luoma, Jukka
name: Ylä-Herttuala, Seppo
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: No abstract available
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 23 No. 4 (1996)
On the initial singularity and extendibility of flat quasi-de Sitter spacetimes
Creators: name: Geshnizjani, Ghazal
name: Ling, Eric
name: Quintin, Jerome
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Inflationary spacetimes have been argued to be past geodesically incomplete in many situations. However, whether the geodesic incompleteness implies the existence of an initial spacetime curvature singularity or whether the spacetime may be extended (potentially into another phase of the universe) is generally unknown. Both questions have important physical implications. In this paper, we take a closer look at the geometrical structure of inflationary spacetimes and investigate these very questions. We first classify which past inflationary histories have a scalar curvature singularity and which might be extendible and/or non-singular in homogeneous and isotropic cosmology with flat spatial sections. Then, we derive rigorous extendibility criteria of various regularity classes for quasi-de Sitter spacetimes that evolve from infinite proper time in the past. Finally, we show that beyond homogeneity and isotropy, special continuous extensions respecting the Einstein field equations with a perfect fluid must have the equation of state of a de Sitter universe asymptotically. An interpretation of our results is that past-eternal inflationary scenarios are most likely physically singular, except in situations with very special initial conditions.
description: 62 pages, 6 figures; v2: minor corrections and references added, matches published version
Adaptation period of laboratory animals after transport: a review
Creators: name: Van Ruiven, R
name: Meijer, G W
name: Van Zutphen, L F M
name: Ritskes-Hoitinga, J
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Transporting animals leads to a temporary disturbance of normal physiology (homeostasis). After an adaptation period in the new laboratory, the animals must have returned to their normal physiological state. A literature survey was performed in order to establish the minimum necessary length of the adaptation period of mice, rats and rabbits after transport. The minimum length of the period for adaptation that was considered necessary varied from none to 78 weeks; in most studies an adaptation period of 7 days was considered sufficient. However, in most studies no proper experimental setup had been used: either the controls were housed at a different location, or they were sampled at different time points, as compared to the transported animals. Besides transport per see additional factors like a shift in the light-dark rythm, will also disturb the homeostasis. The separate supply of food and water sources during transport is recommended. More research into the effects of transport stress per se is needed, as well as into the interaction of transport stress with other environmental factors occurring simultaneously.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 23 No. 4 (1996)
Additional file 4 of Construction of anti-codon table of the plant kingdom and evolution of tRNA selenocysteine (tRNASec)
Creators: name: Mohanta, Tapan Kumar
name: Awdhesh Kumar Mishra
name: Hashem, Abeer
name: Abd_Allah, Elsayed Fathi
name: Khan, Abdul Latif
name: Al-Harrasi, Ahmed
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Supplementary Figure 3. Evolutionary time tree of tRNASec genes. The analysis revealed that tRNA genes in the Plant Kingdom arose at least 2466.30 million years ago. The reference time period was considered based on the evolutionary time scale of the species Chloropicon primus and Ectocarpus siliculosus as per the time tree database ( http://www.timetree.org/ ). The time tree shown was generated using the RelTime method. Divergence times for all of the branching points in the topology were calculated using the Maximum Likelihood method based on the Kimura 2-parameter model. Bars around each node represent 95% confidence intervals which were computed using the method described in Tamura et al. (2013) [76]. The estimated log likelihood value of the topology shown is − 1964.5432. A discrete Gamma distribution was used to model evolutionary rate differences among the sites [5 categories (+G, parameter = 2.8271)]. The tree is drawn to scale, with branch lengths representing the relative number of substitutions per site. The analysis utilized 68 nucleotide sequences. All positions with less than 95% site coverage were eliminated. Fewer than 5% alignment gaps, missing data, and ambiguous bases were allowed at any position. Evolutionary analyses were conducted in MEGA7 [56].
Indización de documentos según la Metodología LILACS (2021) - 01- Tema: Dinámica de las sesiones 2021
Creators: name: BIREME/OPS/OMS
name: Conceição, Maria Anália da
name: Vidili, Ana Lucia
name: Chiquetto, Maria Regina
name: Silva, Lais Aparecida da
name: Suga, Sueli Mitiko Yano
Publisher: name: Zenodo
Year: 2020
Subjects: subject: Indizacion de documentos
subject: Metodologia LILACS
subject: https://decs.bvsalud.org/ths/resource/?id=56243
subject: https://decs.bvsalud.org/ths/resource/?id=46

description: Capacitación sobre indización de documentos según la Metodología LILACS (2021) Tema: Introducción a la indización Presentado en 25 de marzo de 2021 por: Maria Anália Maria Regina Chiquetto Ana Lucia Vidilli 00:00 → Introdução - Sueli Suga 00:27 → Dinâmica de las sesiones 2021 15:10 → Introducción a la indización - Maria Anália 39:03 → Quiz 1 - ¿De Cualés secciones generalmente se extraen los descriptores primarios de un artículo de revista? 46:21 → Quiz 2 - ¿ Cuáles son los Precodificados necesarios para representar unniño de 5 años de edad? 52:38 → Parte 2 - Principales Coordinaciones Visite la página con toda la información: https://lilacs.bvsalud.org/es/sesiones-virtuales-lilacs/indizacion-de-documentos-segun-la-metodologia-lilacs-2021/
Excited states in the neutron-rich nucleus 25F
Creators: name: Vajta, Zs.
name: Stanoiu, M.
name: Sohler, D.
name: Jansen, G. R.
name: Azaiez, F.
name: Dombrádi, Zs.
name: Sorlin, O.
name: Brown, B. A.
name: Belleguic, M.
name: Borcea, C.
name: Bourgeois, C.
name: Dlouhy, Z.
name: Elekes, Z.
name: ülöp, Zs. F
name: Grévy, S.
name: Guillemaud-Mueller, D.
name: Hagen, G.
name: Hjorth-Jensen, M.
name: Ibrahim, F.
name: Kerek, A.
name: Krasznahorkay, A.
name: Lewitowicz, M.
name: Lukyanov, S. M.
name: Mandal, S.
name: Mayet, P.
name: Mrázek, J.
name: Negoita, F.
name: Penionzhkevich, Yu. -E.
name: Podolyák, Zs.
name: Roussel-Chomaz, P.
name: Saint-Laurent, M. G.
name: Savajols, H.
name: Sletten, G.
name: Timár, J.
name: Timis, C.
name: Yamamoto, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The structure of the nucleus 25F was investigated through in-beam γ-ray spectroscopy of the fragmentation of 26Ne and 27,28Na ion beams. Based on the particle-γ and particle-γγ coincidence data, a level scheme was constructed and compared with shell model and coupled-cluster calculations. Some of the observed states were interpreted as quasi single-particle states built on top of the closed-shell nucleus 24O, while the others were described as states arising from coupling of a single proton to the 2+ core excitation of 24O.
description: 8 pages, 4 figures and 1 table
Fast magnetohydrodynamic oscillation of longitudinally inhomogeneous prominence threads: an analogue with quantum harmonic oscillator
Creators: name: Lomineishvili, S. N.
name: Zaqarashvili, T. V.
name: Zhelyazkov, I.
name: Tevzadze, A. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Previous works indicate that the frequency ratio of second and first harmonics of kink oscillations has tendency towards 3 in the case of prominence threads. We aim to study the magnetohydrodynamic oscillations of longitudinally inhomogeneous prominence threads and to shed light on the problem of frequency ratio. Classical Sturm--Liouville problem is used for the threads with longitudinally inhomogeneous plasma density. We show that the spatial variation of total pressure perturbations along the thread is governed by the stationary Schrödinger equation, where the longitudinal inhomogeneity of plasma density stands for the potential energy. Consequently, the equation has bounded solutions in terms of Hermite polynomials. Boundary conditions at the thread surface lead to transcendental dispersion equation with Bessel functions. Thin flux tube approximation of the dispersion equation shows that the frequency of kink waves is proportional to the expression α(2n+1), where αis the density inhomogeneity parameter and n is the longitudinal mode number. Consequently, the ratio of the frequencies of second and first harmonics tends to 3 in prominence threads. Numerical solution of the dispersion equation shows that the ratio only slightly decreases for thicker tubes in the case of smaller longitudinal inhomogeneity of external density, therefore the thin flux tube limit is a good approximation for prominence oscillations. However, stronger longitudinal inhomogeneity of external density may lead to the significant shift of frequency ratio for wider tubes and therefore the thin tube approximation may fail. The tendency of frequency ratio of second and first harmonics towards 3 in prominence threads is explained by the analogy of the oscillations with quantum harmonic oscillator, where the density inhomogeneity of the threads plays a role of potential energy.
description: 8 pages, 7 figures (accepted in A&A)
Trained models and metrics from: MoveFormer: a Transformer-based model for step-selection animal movement modelling
Creators: name: Cífka, Ondřej
name: Chamaillé-Jammes, Simon
name: Liutkus, Antoine
Publisher: name: Zenodo
Year: 2023
Subjects: animal movement
PyTorch

description: Trained model weights (checkpoints) and raw metric values from the paper MoveFormer: a Transformer-based model for step-selection animal movement modelling. To use the weights or metrics, clone the repository and extract the relevant archive in the root directory.
description: Computations were performed using HPC/AI resources from GENCI-IDRIS (Grant AD011012019R1).
7 keV sterile neutrino dark matter from split flavor mechanism
Creators: name: Ishida, Hiroyuki
name: Jeong, Kwang Sik
name: Takahashi, Fuminobu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The recently discovered X-ray line at about $3.5\,$keV can be explained by sterile neutrino dark matter with mass, $m_s \simeq 7\,$keV, and the mixing, $\sin^2 2θ\sim 10^{-10}$. Such sterile neutrino is more long-lived than estimated based on the seesaw formula, which strongly suggests an extra flavor structure in the seesaw sector. We show that one can explain both the small mass and the longevity based on the split flavor mechanism where the breaking of flavor symmetry is tied to the breaking of the $B-L$ symmetry. In a supersymmetric case we find that the $7\,$keV sterile neutrino implies the gravitino mass about $100\,$TeV.
description: 14 pages, 1 figure
A plasma wakefield acceleration experiment using CLARA beam
Creators: name: Xia, G.
name: Angal-Kalinin, D.
name: Clarke, J.
name: Smith, J.
name: Cormier-Michel, E.
name: Jones, J.
name: Williams, P. H.
name: Mckenzie, J. W.
name: Militsyn, B. L.
name: Hanahoe, K.
name: Mete, O.
name: Aimidula, A.
name: Welsch, C. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We propose a Plasma Accelerator Research Station (PARS) based at proposed FEL test facility CLARA (Compact Linear Accelerator for Research and Applications) at Daresbury Laboratory. The idea is to use the relativistic electron beam from CLARA, to investigate some key issues in electron beam transport and in electron beam driven plasma wakefield acceleration, e.g. high gradient plasma wakefield excitation driven by a relativistic electron bunch, two bunch experiment for CLARA beam energy doubling, high transformer ratio, long bunch self-modulation and some other advanced beam dynamics issues. This paper presents the feasibility studies of electron beam transport to meet the requirements for beam driven wakefield acceleration and presents the plasma wakefield simulation results based on CLARA beam parameters. Other possible experiments which can be conducted at the PARS beam line are also discussed.
Curvature from multipartite entanglement in quantum gravity states
Creators: name: Cepollaro, Simone
name: Chirco, Goffredo
name: Cuffaro, Gianluca
name: D'Esposito, Vittorio
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the multipartite entanglement of a uniformly curved quantum 3D space region with boundary, realised in terms of spin networks defined on a graph with non trivial SU(2) holonomies, in the framework of loop quantum gravity. The presence of intrinsic curvature in the region is encoded in closure (topological) defects associated with tag-spins attached to the vertices of the graph. For such states, we generalise the bulk-to-boundary mapping as to include the space of tags in an extended boundary space: bulk information is shared among generically entangled boundary surfaces and intrinsic curvature degrees of freedom. We model the quantum region on a tripartite system composed by two (complementary) boundary subregions and the set of bulk tags. Via replica techniques, we can compute the typical value of the logarithmic negativity of the reduced boundary, described as an open quantum system, in a large spin regime. We find three entanglement regimes, depending on the ratio between the number of tags (curvature) and the area of the dual surface at the boundary. These are well described by the generalised Page curve of a tripartite random state. In particular, we find area scaling behaviour for negativity in case of small curvature, while for large curvature the negativity vanishes, suggesting an effective thermalization of the boundary. Remarkably, the PPT character of the mixed boundary state corresponds to a change in the effective topology of the network, with the two boundary subregions becoming disconnected.
description: 17 pages, 11 figures. arXiv admin note: text overlap with arXiv:2212.06083
Scalar boundary value problems on junctions of thin rods and plates. I. Asymptotic analysis and error estimates
Creators: name: Bunoiu, R.
name: Cardone, G.
name: Nazarov, S. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35B40, 35C20, 74K30

description: We derive asymptotic formulas for the solutions of the mixed boundary value problem for the Poisson equation on the union of a thin cylindrical plate and several thin cylindrical rods. One of the ends of each rod is set into a hole in the plate and the other one is supplied with the Dirichlet condition. The Neumann conditions are imposed on the whole remaining part of the boundary. Elements of the junction are assumed to have contrasting properties so that the small parameter, i.e. the relative thickness, appears in the differential equation, too, while the asymptotic structures crucially depend on the contrastness ratio. Asymptotic error estimates are derived in anisotropic weighted Sobolev norms.
description: 34 pages, 4 figures
Acid-base status and cardiovascular function in pigs and rats anaesthetized with alpha-chloralose and nitrous oxide
Creators: name: Bollen, Peter
name: Glad, Henrik
name: Svendsen, Per
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Alpha~chloralose possesses distinct advantages in certain types of experiments, i.e. in cardiovascular and gastrointestinal research, The compound, however, has limited - if any - analgetic effect, and surgery can only be performed if additional analgesic drugs are administered. In the present study pigs and rats were anaesthetized with a combination of alpha-chloralose and nitrous oxide. A satisfactory surgical anaesthesia could be achieved in pigs using this method, whereas the dose required to obtain surgical anaesthesia in rats caused severe depression of the cardiovascular system. Moreover, a combined metabolic and dilutien acidosis was seen in the rat.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 23 No. 4 (1996)
Differentials in Use-Effectiveness of contraceptives in Dale Woreda, South Ethiopia
Creators: name: Tizazu Abebe
Publisher: name: Zenodo
Year: 1994

description: Global population is increasing at an alarming rate

and Ethiopia is contributing 1.5 million persons / year.

The pyramid shaped age structure of the population as in

most developing countries is a prima facie evidence of

high fertility and imminent population explosion.

Single and multiple decrement life table techniques

were used to analyze pattern of acceptance and use

effectiveness of contraceptive methods in Dale Woreda

Yirgalem Family Planning Project, Ethiopia. The

majority of acceptors (59%) never had formal education.

Substantial percentage (79%) of acceptors were in the age

group 20-34. Continuation rate was high 94.1% for

pill, ( 97.1%) for injectable, (82.6%) for other methods and

(95.1%) for all methods combined.
Stellar Collisions in Galactic Nuclei: Impact on Destructive Events Near a Supermassive Black Hole
Creators: name: Balberg, Shmuel
name: Yassur, Gilad
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Centers of galaxies host both a supermassive black hole and a dense stellar cluster. Such an environment should lead to stellar collisions, possibly at very high velocities so that the total energy involved is of the same order as supernovae explosions. We present a simplified numerical analysis of the destructive stellar collision rate in a cluster similar to that of the Milky Way. The analysis includes an effective average two-body relaxation Monte-Carlo scheme and general relativistic effects, as used by Sari and Fragione (2019), to which we added explicit tracking of local probabilities for stellar collisions. We also consider stars which are injected into the stellar cluster after being disrupted from a binary system by the supermassive black hole. Such stars are captured in the vicinity of the black hole and enhance the expected collision rate. In our results we examine the rate and energetic distribution function of high velocity stellar collisions, and compare them self-consistently with the other destructive processes which occur in the galactic center, namely tidal disruptions and extreme mass ratio inspirals.
description: 18 pages, 10 figures
Additional file 13 of Antimicrobial use and production system shape the fecal, environmental, and slurry resistomes of pig farms
Creators: name: Mencía-Ares, Oscar
name: Cabrera-Rubio, Raúl
name: Cobo-Díaz, José Francisco
name: Álvarez-Ordóñez, Avelino
name: Gómez-García, Manuel
name: Puente, Héctor
name: Cotter, Paul D.
name: Crispie, Fiona
name: Carvajal, Ana
name: Rubio, Pedro
name: Argüello, Héctor
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 13: Table S29. Characteristics of 38 independent Spanish pig farms included in the study.
Additional file 3 of Antimicrobial use and production system shape the fecal, environmental, and slurry resistomes of pig farms
Creators: name: Mencía-Ares, Oscar
name: Cabrera-Rubio, Raúl
name: Cobo-Díaz, José Francisco
name: Álvarez-Ordóñez, Avelino
name: Gómez-García, Manuel
name: Puente, Héctor
name: Cotter, Paul D.
name: Crispie, Fiona
name: Carvajal, Ana
name: Rubio, Pedro
name: Argüello, Héctor
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 3: Table S1. Resistome variation among different production systems and samples at AMR class level.
Experimental campylobacter jejuni infection of scid mice
Creators: name: Berglöf, A
name: Fenstein, R
name: Smith, C I E
name: Riesenfeldt-Örn, I
name: Sanstedt, K
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: Campylobacter jejuni was inoculated orally to C.B-17 scid/scid (severe combined immunodeficient) and C.B—17 immunocompetent mice. Groups of mice from each strain were pretreated with enrofloxacin in an attempt to increase colonisation. All mice were heavily colonised but neither clinical signs of illness nor histological lesions were observed. Results from our experiment indicate that specific humoral and cellular immunity are not directly involved in the protection against C. jejuni, since said mice were not more sensitive to the infection than C.B-17 rnice. Animals, treated as well as untreated with antibiotic, showed the same colonisation pattern which suggests that normal flora does not hamper establishing of this bacterium in the intestine. On the other hand this study shows that both C.B~l7 and scid mice may become inapparent carriers of C. jejuni.
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 23 No. 4 (1996)
Choosing a variable ordering for truth-table invariant cylindrical algebraic decomposition by incremental triangular decomposition
Creators: name: England, Matthew
name: Bradford, Russell
name: Davenport, James H.
name: Wilson, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences
subject: I.1.2
subject: 68W30, 03C10

description: Cylindrical algebraic decomposition (CAD) is a key tool for solving problems in real algebraic geometry and beyond. In recent years a new approach has been developed, where regular chains technology is used to first build a decomposition in complex space. We consider the latest variant of this which builds the complex decomposition incrementally by polynomial and produces CADs on whose cells a sequence of formulae are truth-invariant. Like all CAD algorithms the user must provide a variable ordering which can have a profound impact on the tractability of a problem. We evaluate existing heuristics to help with the choice for this algorithm, suggest improvements and then derive a new heuristic more closely aligned with the mechanics of the new algorithm.
Establishment of some microflora-associated characteristics in ex-germfree rats and the developmental pattern
Creators: name: Gustafsson, Aina
name: Norin, Elisabeth
name: Midvedt, Tore
Publisher: name: Scandinavian Journal of Laboratory Animal Sciences
Year: 2019

description: No abstract available
description: Scandinavian Journal of Laboratory Animal Sciences, Vol. 23 No. 2 (1996)
Searching for temporary gamma-ray dark blazars associated with IceCube neutrinos
Creators: name: Kun, Emma
name: Bartos, Imre
name: Tjus, Julia Becker
name: Biermann, Peter L.
name: Franckowiak, Anna
name: Halzen, Francis
name: Mező, György
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Tensions between the diffuse gamma-ray sky observed by the Fermi Large Area Telescope (LAT) and the diffuse high-energy neutrino sky detected by the IceCube South Pole Neutrino Observatory question our knowledge about high-energy neutrino sources in the gamma-ray regime. While blazars are among the most energetic persistent particle accelerators in the Universe, studies suggest that they could account for up to for 10-30% of the neutrino flux measured by IceCube. Our recent results highlighted that the associated IceCube neutrinos arrived in a local gamma-ray minimum (dip) of three strong neutrino point-source candidates. We increase the sample of neutrino-source candidates to study their gamma-ray light curves. We generate the one-year Fermi-LAT light curve for 8 neutrino source candidate blazars (RBS 0958, GB6 J1040+0617, PKS 1313-333, TXS 0506+056, PKS 1454-354, NVSS J042025-374443, PKS 0426-380 and PKS 1502+106), centered on the detection time of the associated IceCube neutrinos. We apply the Bayesian block algorithm on the light curves to characterize their variability. Our results indicate that GB6 J1040+0617 was in the phase of high gamma-ray activity, while none of the other 7 neutrino source candidates were statistically bright during the detection of the corresponding neutrinos and that indeed even most of the times neutrinos arrived in a faint gamma-ray phase of the light curves. This suggests that the 8 source-candidate blazars (associated with 7 neutrino events) in our reduced sample are either not the sources of the corresponding IceCube neutrinos, or that an in-source effect (e.g. suppression of gamma rays due to high gamma-gamma opacity) complicates the multimessenger scenario of neutrino emission for these blazars.
description: 14 pages, 10 figures, 4 tables. Accepted for publication in A&A
title: Quadratische Kongruenzen und das quadratische Reziprozitätsgesetz
Creators: name: Eigner, Rebecca
Year: 2023

description: Das quadratische Reziprozitätsgesetz ist eine zentrale Erkenntnis der Zahlentheorie und heute der am häufigsten bewiesene Satz der Mathematik. In der vorliegenden Masterarbeit werden aufbauend alle Konzepte, Definition und Sätze erarbeitet, die zur Formulierung des quadratischen Reziprozitätsgesetzes notwendig sind. Im Zuge dessen werden insbesondere quadratische Kongruenzen sowie quadratische Reste und das Legendre-Symbol näher betrachtet. Weiters werden unter Zuhilfenahme des Lemmas von Gauß zwei ausgewählte Beweise der Aussage angeführt und anhand mehrerer Beispiele Anwendungen des Reziprozitätsgesetzes demonstriert.
description: The quadratic reciprocity law is a central result of number theory and is currently the most frequently proven theorem in mathematics. This master's thesis presents a step-by-step approach to all the concepts, definitions, and theorems necessary for formulating the quadratic reciprocity law. In this context quadratic congruences, quadratic residues, and the Legendre symbol are examined in detail. Furthermore, using Gauss's lemma, two selected proofs of the statement are presented and several examples demonstrate the applications of the reciprocity law.
Superconductivity of La$_3$Co$_4$Sn$_{13}$ and La$_3$Rh$_4$Sn$_{13}$: A comparative study
Creators: name: Slebarski, A.
name: Fijalkowski, M.
name: Maska, M. M.
name: Mierzejewski, M.
name: White, B. D.
name: Maple, M. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report the electric transport and thermodynamic properties of the skutterudite-related La$_3$Co$_4$Sn$_{13}$ and La$_3$Rh$_4$Sn$_{13}$ superconductors. Applying an external pressure to La$_3$Rh$_4$Sn$_{13}$, the resistive superconducting critical temperature Tc decreases, while the critical temperature of La$_3$Co$_4$Sn$_{13}$ is enhanced with increasing pressure. The positive pressure coefficient dTc/dP correlates with a subtle structural transition in La$_3$Co$_4$Sn$_{13}$ and is discussed in the context of lattice instabilities. Specific-heat data show that both compounds are typical BCS superconductors. However, La$_3$Rh$_4$Sn$_{13}$ also exhibits a second superconducting phase at higher temperatures, which is characteristic of inhomogeneous superconductors. We calculate the specific heat for an inhomogeneous superconducting phase, which agrees well with experimental C(T) data for La$_3$Rh$_4$Sn$_{13}$. We also found that an applied pressure reduces this second superconducting phase.
description: 8 pages, 10 figures, revtex
Fabrication of sub-15nm aluminum wires by controlled etching
Creators: name: Morgan-Wall, T.
name: Hughes, H. J.
name: Hartman, N.
name: McQueen, T. M.
name: Markovic, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe a method for fabrication of uniform aluminum nanowires with diameters below 15 nm. Electron beam lithography is used to define narrow wires, which are then etched using a sodium bicarbonate solution, while their resistance is simultaneously measured in-situ. The etching process can be stopped when the desired resistance is reached, and can be restarted at a later time. The resulting nanowires show a superconducting transition as a function of temperature and magnetic field that is consistent with their diameter. The width of the transition is similar to that of the lithographically defined wires, indicating that the etching process is uniform and that the wires are undamaged. This technique allows for precise control over the normal state resistance and can be used to create a variety of aluminum nanodevices.
description: 4 pages, 4 figures
Development of an open source software module for enhanced visualization during MR-guided interstitial gynecologic brachytherapy
Creators: name: Chen, Xiaojun
name: Egger, Jan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Systems and Control (eess.SY)
subject: Software Engineering (cs.SE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In 2010, gynecologic malignancies were the 4th leading cause of death in U.S. women and for patients with extensive primary or recurrent disease, treatment with interstitial brachytherapy may be an option. However, brachytherapy requires precise insertion of hollow catheters with introducers into the tumor in order to eradicate the cancer. In this study, a software solution to assist interstitial gynecologic brachytherapy has been investigated and the software has been realized as an own module under (3D) Slicer, which is a free open source software platform for (translational) biomedical research. The developed research module allows on-time processing of intra-operative magnetic resonance imaging (iMRI) data over a direct DICOM connection to a MR scanner. Afterwards follows a multi-stage registration of CAD models of the medical brachytherapy devices (template, obturator) to the patient's MR images, enabling the virtual placement of interstitial needles to assist the physician during the intervention.
description: 9 pages, 6 figures
VoDEx: a Python library for time annotation and management of volumetric functional imaging data
Creators: name: Nadtochiy, Anna
name: Luu, Peter
name: Fraser, Scott E.
name: Truong, Thai V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Summary: In functional imaging studies, accurately synchronizing the time course of experimental manipulations and stimulus presentations with resulting imaging data is crucial for analysis. Current software tools lack such functionality, requiring manual processing of the experimental and imaging data, which is error-prone and potentially non-reproducible. We present VoDEx, an open-source Python library that streamlines the data management and analysis of functional imaging data. VoDEx synchronizes the experimental timeline and events (eg. presented stimuli, recorded behavior) with imaging data. VoDEx provides tools for logging and storing the timeline annotation, and enables retrieval of imaging data based on specific time-based and manipulation-based experimental conditions. Availability and Implementation: VoDEx is an open-source Python library and can be installed via the "pip install" command. It is released under a BSD license, and its source code is publicly accessible on GitHub https://github.com/LemonJust/vodex. A graphical interface is available as a napari-vodex plugin, which can be installed through the napari plugins menu or using "pip install." The source code for the napari plugin is available on GitHub https://github.com/LemonJust/napari-vodex.