cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Study of Higgs boson production through its decay to two photons using data collected at a centre-of-mass energy of 13 TeV with the CMS detector
Creators: name: Corpe, Louie
Publisher: name: Imperial College London
Year: 2017

description: A study of $H \rightarrow \gamma \gamma$ with 12.9 fb$^{-1}$ of data from p-p collisions at $\sqrt{s}=13$ TeV is presented. The data were collected at the start of LHC Run 2 by the CMS experiment between April and July 2016. The result is a new standalone observation of the Higgs boson in the diphoton decay channel. The significance of the excess is observed to be $5.7\sigma$ ($6.3\sigma$ expected) at the combined Run 1 best-fit Higgs boson mass of $m_{H}=125.09$ GeV. The maximum significance of $6.1\sigma$ ($6.3\sigma$ expected) is observed at $m_{H}=125.09$ GeV. The measured Higgs boson signal strength is $\hat{\mu} = 0.89^{+0.20}_{-0.17} = 0.89 \pm 0.15 {~(stat.)~} ^{+0.09}_{-0.06} {~(syst.)~} ^{+0.07}_{-0.05} {~(theo.)}$. The signal strength is measured separately for: fermionic and bosonic production modes, giving $ \hat{\mu}_{{VBF},{VH}} = 1.00^{+0.10}_{-0.10}$ and $\hat{\mu}_{{ggH},{ttH}} = 1.00^{+0.10}_{-0.10}$; and for the ggH, VBF and ttH production modes, giving $\hat{\mu}_{{ggH}} = 0.73^{+0.24}_{-0.22}$, $\hat{\mu}_{{VBF}} = 1.45^{+0.8}_{-0.7}$, and $\hat{\mu}_{{ttH}} = 1.75^{+1.4}_{-1.1}$. Measurements of the Higgs boson coupling modifiers yield $\hat{\kappa}_{{f}} = 0.66^{+0.43}_{-0.22}$, $\hat{\kappa}_{{V}} = 0.90^{+0.10}_{-0.10}$ for the fermionic and bosonic coupling modifiers and $\hat{\kappa}_{g} = 0.66^{+0.27}_{-0.19}$, $\hat{\kappa}_{\gamma} = 1.23^{+0.24}_{-0.26}$ for the gluon and photon effective coupling modifiers. All measurements are found to be consistent with the theoretical expectation for a SM-like Higgs boson.
Search for black holes and sphalerons in high-multiplicity final states in proton-proton collisions at $\sqrt{s} =$ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search in energetic, high-multiplicity final states for evidence of physics beyond the standard model, such as black holes, string balls, and electroweak sphalerons, is presented. The data sample corresponds to an integrated luminosity of 35.9 fb$^{-1}$ collected with the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV in 2016. Standard model backgrounds, dominated by multijet production, are determined from control regions in data without any reliance on simulation. No evidence for excesses above the predicted background is observed. Model-independent 95% confidence level upper limits on the cross section of beyond the standard model signals in these final states are set and further interpreted in terms of limits on semiclassical black hole, string ball, and sphaleron production. In the context of models with large extra dimensions, semiclassical black holes with minimum masses as high as 10.1 TeV and string balls with masses as high as 9.5 TeV are excluded by this search. Results of the first dedicated search for electroweak sphalerons are presented. An upper limit of 0.021 is set on the fraction of all quark-quark interactions above the nominal threshold energy of 9 TeV resulting in the sphaleron transition.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-17-023 (CMS Public Pages)
Central limit theorems for non-symmetric random walks on nilpotent covering graphs: Part I
Creators: name: Ishiwata, Satoshi
name: Kawabi, Hiroshi
name: Namba, Ryuya
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In the present paper, we study central limit theorems (CLTs) for non-symmetric random walks on nilpotent covering graphs from a point of view of discrete geometric analysis developed by Kotani and Sunada. We establish a semigroup CLT for a non-symmetric random walk on a nilpotent covering graph. Realizing the nilpotent covering graph into a nilpotent Lie group through a discrete harmonic map, we give a geometric characterization of the limit semigroup on the nilpotent Lie group. More precisely, we show that the limit semigroup is generated by the sub-Laplacian with a non-trivial drift on the nilpotent Lie group equipped with the Albanese metric. The drift term arises from the non-symmetry of the random walk and it vanishes when the random walk is symmetric. Furthermore, by imposing the "centered condition", we establish a functional CLT (i.e., Donsker-type invariance principle) in a Hoelder space over the nilpotent Lie group. The functional CLT is extended to the case where the realization is not necessarily harmonic. We also obtain an explicit representation of the limiting diffusion process on the nilpotent Lie group and discuss a relation with rough path theory. Finally, we give several examples of random walks on nilpotent covering graphs with explicit computations.
description: 60 pages, 6 figures
Assessment of the relationship between serum 25-­hydroxyvitamin D3, human alveolar macrophage function, and in vitro and in vivo outcomes of M. tuberculosis exposure
Creators: name: Connell, David
Publisher: name: Imperial College London
Year: 2016

description: Approximately 50% of individuals may be resistant to infection with Mycobacterium tuberculosis (M.tb), the causative agent of tuberculosis (TB). Pulmonary innate immunity is likely to be important in shaping this, although it is unclear how this is determined in the human lung. Ethnicity influences infection rates following exposure to TB, and is associated with differential phenotypes in established TB disease; the latter is driven by variation in serum 25-hydroxyvitamin D3 [25(OH)D3]. Through genomic vitamin D-response elements, 25(OH)D3 can influence gene transcription, potentially linking changes in serum 25(OH)D3, and innate pulmonary immune function. Aim 1 of this project involved the recruitment of a cohort of precisely-defined individuals in recent close contact with smear-positive pulmonary TB. Their exposure to TB was quantified, along with variables associated with TB transmission. Vitamin D metabolites were measured in serum at the point of recruitment, and associations with outcome were tested. Elevation in serum 25(OH)D3 was associated with resistance to TB infection, and not confounded by other transmission factors. Aim 2 involved the development of an experimental pathway where human alveolar macrophages (AMs) could be acquired and identified, and then infected intracellularly with the virulent M.tb strain H37Rv. The concentration of 25(OH)D3 in the serum to which these cells were exposed was varied; a higher concentration was associated with enhanced growth control of H37Rv. Aim 3 involved the isolation of RNA from human AMs, so that gene expression in response to intracellular H37Rv could be assessed using qPCR and RNAseq. The AM was able to upregulate the genes required to activate 25(OH)D3 within the cell, but growth control in response to higher serum 25(OH)D3 exposure was not associated with transcription of the anti-mycobacterial gene cathelicidin. RNAseq suggested networks of genes, possibly involving eicosanoid metabolism, may be more important in the 25(OH)D3-driven AM response to virulent mycobacteria.
Additional file 3: of Bivariate genome-wide association analysis strengthens the role of bitter receptor clusters on chromosomes 7 and 12 in human bitter taste
Creators: name: Liang-Dar Hwang
name: Puya Gharahkhani
name: Breslin, Paul
name: Gordon, Scott
name: Zhu, Gu
name: Martin, Nicholas
name: Reed, Danielle
name: Wright, Margaret
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Table S3. Top 100 SNPs on chromosome 12 associated with the perceived intensity of sucrose octaacetate (SOA). (DOCX 181 kb)
Structural behaviour of composite cold-formed steel systems
Creators: name: Kyvelou, Pinelopi
Publisher: name: Imperial College London
Year: 2017

description: The topic of this thesis is the investigation of the structural behaviour of cold-formed steel flooring and purlin systems, taking into consideration the beneficial effect of interaction between structural components. Experiments have been conducted on flooring systems comprising cold-formed steel joists and wood-based particle boards, considering the typical screw fixings employed in current practice as well as alternative means of shear connection. The experimental findings showed that mobilisation of composite action within this type of system, through enhancement, beyond that currently used, of the employed shear connection, is feasible, bringing corresponding increases in capacity and stiffness. In order for the influence of the key parameters to be further examined, a finite element model simulating the examined systems has been developed, validated and employed for parametric studies. Analyses confirmed the experimental findings, showing that significant benefits in terms of capacity and stiffness can be achieved, especially for systems comprising thinner steel sections. Based on the obtained experimental and numerical results, a full design method, following the fundamental concepts of current design codes for composite structures, has been devised, providing accurate predictions of moment capacity and flexural stiffness. Finally, a numerical investigation has been performed on continuous two-span roof systems comprising cold-formed steel purlins, accounting for their interaction with the corrugated sheeting. The study showed that moment redistribution is possible within these systems, but usually accompanied by a reduction of the moment capacity of the central support. A previously devised method for the design of continuous purlin systems, making direct use of cross-section capacities at key locations, together with a factor to allow for the fall-off in moment at the central support, has been assessed and advanced.
Additional file 5: of Phylogenomic analysis reveals splicing as a mechanism of parallel evolution of non-canonical SVAs in hominine primates
Creators: name: Damert, Annette
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Multiple alignment of the consensus sequences of SVA_D subfamilies containing the hallmark A-G co-segregating substitutions at positions 228 and 242 relative to the SVA_DR consensus. (PDF 72 kb)
Pathomorphology of the tibiofemoral joint in osteoarthritis
Creators: name: Leong, Anthony Peng Yew
Publisher: name: Imperial College London
Year: 2016

description: Flattening of the distal femoral condyle is a commonly cited feature of knee OA. However, it is unknown whether this is a result of bone wear, or subchondral bone remodelling. Studies show that subchondral bone turnover is increased and remodelling of new bone is pathologic. Such bone is denser with thicker trabeculae, but is also softer and osteopenic. Could remodelling of pathological subchondral bone be the aetiology of flattened condyles? Unlike the hip, not much is known about the morphological parameters of the knee’s articular surface in influencing OA risk outcome. If flattening is the result of the early OA disease process, mechanical stress to the joint will increase due to numerous causes, which will also be discussed. The common sites of wear in knee OA include the distal femoral condyles, and the anteromedial portion of the medial tibia plateau. This study analysed the morphometry of these segments with the aim of quantifying any morphological changes in early OA. The findings were that the extension facets in early OA are indeed flattened, even before the onset of bone to bone contact. Such flattening is hence part of the pathomorphological positive feedback loop, aggravating mechanical conditions early in the disease process.
Anas caerulescens Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Anseriformes
Anatidae
Anas
Anas caerulescens

description: Anas caerulescens [spec. nov.]
A. grisea, subtus alba, tectricibus alarum dorsoque postico caerulescentibus.
Anser canadensis, alis caeruleis. Edw. av. 152. t. 152.
Habitat in Canada.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 124, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Chemo -- Dynamical evolution of disk galaxies, smoothed particles hydrodynamics approach
Creators: name: Berczik, Peter
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new Chemo -- Dynamical Smoothed Particle Hydrodynamic (CD -- SPH) code is presented. The disk galaxy is described as a multi -- fragmented gas and star system, embedded into the cold dark matter halo. The star formation (SF) process, SNII, SNIa and PN events as well as chemical enrichment of gas have been considered within the framework of standard SPH model. Using this model we try to describe the dynamical and chemical evolution of triaxial disk -- like galaxies. It is found that such approach provides a realistic description of the process of formation, chemical and dynamical evolution of disk galaxies over the cosmological timescale.
description: 4 pages, the Kluwer LaTeX style (crckapb.sty), 4 figures, presented as oral contribution in the "Galactic Evolution: Connecting the distant Universe with the local fossil record". September 21 - 25, 1998, Meudon, Paris, France
Pressure waves and cavitation in diesel fuel injection rate characterisation
Creators: name: Pearce, Daniel
Publisher: name: Imperial College London
Year: 2017

description: To meet stringent control and emissions requirements, diesel fuel injectors need to be characterised accurately in terms of timing and rate of change of mass flow rate. Such characterisation is carried out with various rate metering devices which overwhelmingly utilise a liquid into liquid injection process. These devices have historically been hampered by unwanted 'noise' in the measurement signal whose source was poorly understood and mitigation relied on post processing filtering techniques. A model of a constant volume metering device with optical access was constructed and a hybrid schlieren laser imaging technique applied to the flow field external to the nozzle with simultaneous chamber pressure measurement. This technique is sensitive to the second derivative of density and so directly able to visualise pressure waves within the domain. LES simulations were also performed to extract relationships not available through experimental data. The experimental results show cloud cavitation in the shear layer of the jet whose vapour bubbles begin collapsing shortly after injection begins and persist more than 500 microseconds after the end of injection. Compression waves due to the collapse of cavitation bubbles are visualised directly and parameters such as their spatial origin and time are calculated. Compression wave diffraction, reflections and interaction between individual jets are demonstrated. The 'noise' in a constant volume chamber is therefore shown to actually be an accurate representation of the pressure field arising from the superposition of complex flow phenomena in the near field of the injector nozzle due to an interaction of pressure waves and cavitation. The novel use of a hybrid schlieren technique demonstrates the utility of this arrangement to fully three dimensional problems. Cavitation and its associated processes are shown to be the dominating force in liquid to liquid injection processes for the flows encountered in fuel injection metering.
Synergy between ground and space based gravitational wave detectors II: Localisation
Creators: name: Nair, Remya
name: Tanaka, Takahiro
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the advantage of combining measurements from future ground and space based gravitational wave detectors in estimating the parameters of a black-hole binary coalescence. This is an extension of our previous work (PTEP 053E01 (2016)) where we used pattern averaged waveform to study non-spinning binaries. In this work we study the localisation and binary plane orientation, including the (non-precessing) spin of binaries. We focus on the third generation terrestrial detector `Einstein telescope' and a proposed space based detector `Deci-Hertz Interferometer Gravitational wave Observatory' (DECIGO). We consider two possible orbits for DECIGO, a heliocentric orbit and a Sun-synchronous geocentric orbit. We demonstrate that one can obtain order of magnitude improvement in the localisation from the space-ground combined measurements, even with a precursor-DECIGO mission (B-DECIGO). This is especially important for the future of gravitational wave astronomy as improving the localisation accuracy further improves our chances of identifying the host galaxies of these binary systems.
description: one modified figure, results unchanged
Additional file 1: of Identification of antitumoral agents against human pancreatic cancer cells from Asteraceae and Lamiaceae plant extracts
Creators: name: Mouhid, Lamia
name: Cedrón, Marta Gómez De
name: Vargas, Teodoro
name: García-Carrascosa, Elena
name: Herranz, Nieves
name: García-Risco, Mónica
name: Reglero, Guillermo
name: Fornari, Tiziana
name: Molina, Ana Ramírez De
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Table S1. Sensitivity of SW-620 human colon cancer cells and CCD18 colon cells to Yarrow and Marigold extracts. Concentrations required to achieve the IC50, LC50, IG50 and TGI of Yarrow and Marigold SFE extracts treatments in colorrectal derived cancer cells and non tumoral colon cells. Figure S1. Dose-response curves of cell viability assays after 48 h treatment of SW-620 colon cancer cells (A) versus CCD18 non-cancer cells (B) with increasing concentrations of Yarrow and Marigold SFE extracts. Dose-response curves of cancer and non-cancer colon cells after treatments with Yarrow and Marigold SFE extracts. (DOCX 151 kb)
The Line Emission from the Circumstellar Gas Around SN 1987A
Creators: name: Lundqvist, P.
name: Fransson, C.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The narrow emission lines from the inner ring around SN 1987A during the first $\sim 2000$ days are modeled. The analysis extends that in Lundqvist & Fransson (1991) to include an improved description for the geometry, a multi-density structure of the emitting gas, results from improved calculations for the evolu- tion of the EUV radiation from the outburst, and updated atomic data. The ring has to be optically thick to the ionizing radiation, as is the case for a ring geometry, but not for a spherical shell. The density of the observed gas in the ring ranges from $(6.0\pm1.0)\EE{3} \cm3$ to $3.3\EE{4} \cm3$. The early ($t \lesssim 410$ days) UV line emission is dominated by the gas with the high- est density. Gas of lower density than $\sim 6\EE{3} \cm3$ may be present in the ring, but will not dominate the emission until after $\sim 2000$ days. The ionized mass observed up to day 1882 is $\sim 4.5\EE{-2} \Msun$. The He/H ratio is $0.25\pm0.05$, and the overall abundance of C, N and O is $0.30\pm0.05$ times solar with relative abundances ${\rm N/C} = 5.0\pm2.0$ and ${\rm N/O} = 1.1\pm0. 4$. The peak effective temperature of the burst is in the range $(5-8)\EE{5}$ K. The corresponding color temperature is $(1.0-1.5)\EE6$ K. To model the $\NV$~ $λ$1240 light curve, resonance scattering in a medium external to the ring is needed. It is shown that the $\NV$ line scattering can be used to discrimi- nate between models for the formation of the inner ring and the extended nebula.
description: 38 pages PostScript, 7 PostScript figures may be retrieved from ftp://www.astro.su.se/pub/supernova/lf95_87A/ Accepted for publication in ApJ
Scheduling Power-Intensive Operations of Battery Energy Storage Systems and Application to Hybrid Hydropower Plants
Creators: name: Cassano, Stefano
name: Sossan, Fabrizio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a novel set of power constraints for Battery Energy Storage Systems (BESSs), referred to as Dynamic Power Constraints (DPCs), that account for the voltage and current limits of the BESS as a function of its State of Charge (SOC). These constraints are formulated for integration into optimization-based BESS scheduling problems, providing a significant improvement over traditional static constraints. It is shown that, under mild assumptions typically verified during practical operations, DPCs can be expressed as a linear function of the BESS power, thus making it possible to retrofit existing scheduling problems without altering their tractability property (i.e., convexity). The DCPs unify voltage and current constraints into a single framework, filling a gap between simplified models used in BESS schedulers and more advanced models in real-time controllers and Battery Management Systems (BMSs). By improving the representation of the BESS's power capability, the proposed constraints enable schedulers to make more reliable and feasible decision, especially in power-intensive applications where the BESS operates near its rated power. To demonstrate the effectiveness of the DPCs, a simulation-based performance evaluation is conducted using a hybrid system comprising a 230 MW Hydropower Plant (HPP) and a 750 kVA/500 kWh BESS. Compared to state-of-the-art formulations such as static power constraints and DPC formulations without voltage constraints the proposed method reduces BESS constraint violations by 93% during real-time operations.
Muscle Activity Analysis using Higher-Order Tensor Models: Application to Muscle Synergy Identification
Creators: name: Ebied, Ahmed
name: Kinney-lang, Eli
name: Spyrou, Loukianos
name: Escudero, Javier
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: Higher-order tensor decompositions have hardly been used in muscle activity analysis despite multichannel electromyography (EMG) datasets naturally occurring as multi-way structures. Here, we seek to demonstrate and discuss the potential of tensor decompositions as a framework to estimate muscle synergies from $3^{rd}$-order EMG tensors built by stacking repetitions of multi-channel EMG for several tasks. We compare the two most widespread tensor decomposition models -- Parallel Factor Analysis (PARAFAC) and Tucker -- in muscle synergy analysis of the wrist's three main Degree of Freedoms (DoFs) using the public first Ninapro database. Furthermore, we proposed a constrained Tucker decomposition (consTD) method for efficient synergy extraction building on the power of tensor decompositions. This method is proposed as a direct novel approach for shared and task-specific synergy estimation from two biomechanically related tasks. Our approach is compared with the current standard approach of repetitively applying non-negative matrix factorisation (NMF) to a series of movements. The results show that the consTD method is suitable for synergy extraction compared to PARAFAC and Tucker. Moreover, exploiting the multi-way structure of muscle activity, the proposed methods successfully identified shared and task-specific synergies for all three DoFs tensors. These were found to be robust to disarrangement with regard to task-repetition information, unlike the commonly used NMF. In summary, we demonstrate how to use tensors to characterise muscle activity and develop a new consTD method for muscle synergy extraction that could be used for shared and task-specific synergies identification. We expect that this study will pave the way for the development of novel muscle activity analysis methods based on higher-order techniques.
description: Accepted February 5, 2019
Evidence for Secular Evolution in Late-Type Spirals
Creators: name: Courteau, S.
name: de Jong, R. S.
name: Broeils, A. H.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combine deep optical and IR photometry for 326 spiral galaxies from two recent galaxy samples and report that the surface brightness profiles of late-type spirals are best fit by two exponentials. Moreover, the ratio of bulge and disk scale lengths takes on a restricted range of values and is uncorrelated with Hubble type. This suggests a scale-free Hubble sequence for late-type spirals. Careful numerical simulations ensure that our results are not affected by seeing or resolution effects. Many of these galaxies show spiral structure continuing into the central regions with a previously undetected small bar and slowly changing colors between the inner disk and the bulge. We invoke secular dynamical evolution and interpret the nature of disk central regions in the context of gas inflow via angular-momentum transfer and viscous transport. In this scenario, galaxy morphologies in late-type spirals are not imprinted at birth but are the result of evolution.
description: Accepted for publication in the Astrophysical Journal Letters 11 pages LaTeX file, 2 PostScript figures, uses aaspp4.sty, also available at: ftp://sagittarius.tuc.noao.edu/pub/bulges95.ps.Z http://www.astro.su.se/~broeils/papers.html http://star-www.dur.ac.uk/~rdejong/papers.html
Mahler Measure and the Vol-Det Conjecture
Creators: name: Champanerkar, Abhijit
name: Kofman, Ilya
name: Lalín, Matilde
Publisher: name: arXiv
Year: 2018
Subjects: subject: Geometric Topology (math.GT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The Vol-Det Conjecture relates the volume and the determinant of a hyperbolic alternating link in $S^3$. We use exact computations of Mahler measures of two-variable polynomials to prove the Vol-Det Conjecture for many infinite families of alternating links. We conjecture a new lower bound for the Mahler measure of certain two-variable polynomials in terms of volumes of hyperbolic regular ideal bipyramids. Associating each polynomial to a toroidal link using the toroidal dimer model, we show that every polynomial which satisfies this conjecture with a strict inequality gives rise to many infinite families of alternating links satisfying the Vol-Det Conjecture. We prove this new conjecture for six toroidal links by rigorously computing the Mahler measures of their two-variable polynomials.
description: 29 pages. V2: Minor changes, fixed typos, improved exposition
Practical systematic concurrency testing for concurrent and distributed software
Creators: name: Thomson, Paul
Publisher: name: Imperial College London
Year: 2016

description: Systematic concurrency testing (SCT) is a promising solution to finding and reproducing concurrency bugs. The program under test is repeatedly executed such that a particular schedule is explored on each execution. Numerous techniques have been proposed to make SCT scalable. Despite this, we have identified the following open problems: (1) There is a major lack of comparison and empirical evaluation of SCT techniques; (2) There is a need for better reduction techniques that go beyond the current theoretical limits; (3) The feasibility of applying SCT in practice is unclear, particularly for distributed systems. This thesis makes the following contributions to the field of SCT: 1. An independent, reproducible empirical study of existing SCT techniques over 49 buggy concurrent software benchmarks. Surprisingly, we found that the "naive" controlled random scheduler performs well, finding more bugs than preemption bounding. We report the results for all techniques. We discuss the benchmarks and challenges faced in applying SCT. 2. The lazy happens-before relation (lazy HBR), which provides reduction beyond partial-order reduction for programs that use mutexes. Our evaluation over 79 publicly available benchmarks shows both a large potential and large practical improvement from exploiting the lazy HBR. 3. A description of how to create an SCT tool in practice, with a focus on subtle-yet-important details that are typically not discussed in prior work. 4. A case study where we apply SCT in the context of distributed systems written for Azure Service Fabric (Fabric). We introduce our Adara actors framework for writing portable, statically-typed actors. We describe our model of Fabric and evaluate it on a system containing 15 bugs, showing that our Fabric model includes enough behaviours/asynchrony to expose these subtle pitfalls.
Morita Invariance of Intrinsic Characteristic Classes of Lie Algebroids
Creators: name: Frejlich, Pedro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In this note, we prove that intrinsic characteristic classes of Lie algebroids - which in degree one recover the modular class - behave functorially with respect to arbitrary transverse maps, and in particular are weak Morita invariants. In the modular case, this result appeared in [Kosmann-Schwarzbach Y., Laurent-Gengoux C., Weinstein A., Transform. Groups 13 (2008), 727-755], and with a connectivity assumption which we here show to be unnecessary, it appeared in [Crainic M., Comment. Math. Helv. 78 (2003), 681-721] and [Ginzburg V.L., J. Symplectic Geom. 1 (2001), 121-169].
Ocean bathymetry reconstruction from surface data using hydraulics theory
Creators: name: Kar, Subhajit
name: Guha, Anirban
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Here we propose a technique that successfully reconstructs ocean bathymetry from the free surface velocity and elevation data. This technique is based on the principles of open-channel hydraulics, according to which a sub-critical flow over a seamount creates a free surface dip. The proposed method recognizes that such free surface dip contains the signature of the bottom topography, hence inverts the free surface to reconstruct the topography accurately. We applied our inversion technique on re-analysis data, and reconstructed the Mediterranean and the Red sea bathymetries of $1/12\degree$ resolution with approximately $90$\% accuracy.
description: Accepted for publication in Physics of Fluids (Letters)
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Cart. 193 (11 H 78), f. 0080v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0080v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0080v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Anas berniela Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Anseriformes
Anatidae
Anas
Anas berniela

description: Anas berniela [spec. nov.]
A. fusca, capite collo pectoreque nigris, collari albo.
Anas capite colloque nigris. Fn. svec. 91.
Branta s. Bernicla. Gesn. av. 110. Aldr. orn. l. 19. c. 23. Jonst. av. t. 49. Will. orn. 274. 275. t. 10. Rai. av. 137. Valent. mus. 495. Albe{?X} av. 1. p. 89. t. 93.
Habitat in Europa boreali; migrat supra Sveciam.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 124, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Dynamical models of NGC 3115
Creators: name: Emsellem, Eric
name: Dejonghe, Herwig
name: Bacon, Roland
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new dynamical models of the S0 galaxy N3115, making use of the available published photometry and kinematics as well as of two-dimensional TIGER spectrography. We first examined the kinematics in the central 40 arcsec in the light of two integral f(E,J) models. Jeans equations were used to constrain the mass to light ratio, and the central dark mass whose existence was suggested by previous studies. The even part of the distribution function was then retrieved via the Hunter & Qian formalism. We thus confirmed that the velocity and dispersion profiles in the central region could be well fit with a two-integral model, given the presence of a central dark mass of ~10^9 Msun. However, no two integral model could fit the h_3 profile around a radius of 25 arcsec where the outer disc dominates the surface brightness distribution. Three integral analytical models were therefore built using a Quadratic Programming technique. These models showed that three integral components do indeed provide a reasonable fit to the kinematics, including the higher Gauss-Hermite moments. Again, models without a central dark mass failed to reproduce the observed kinematics in the central arcseconds. This clearly supports the presence of a nuclear black hole of at least 6.5 10^8 Msun in the centre of NGC 3115. These models were finally used to estimate the importance of the dark matter in the outer part of NGC 3115, suggested by the flat stellar rotation curve observed by Capaccioli et al. (1993).
description: 18 pages, 22 figures, accepted for publication in MNRAS
Common MPI-Based Solutions for High-Performance Processing in Python Evaluated on Selected Test Cases [Presentation]
Creators: name: Miranda, Eduardo F.
name: Stephany, Stephan
Publisher: name: Zenodo
Year: 2022
Subjects: HPC

description: Presentation given in my thesis defense.

Abstract. A number of the most common high-performance computing approaches available in the Python programming environment of the LNCC Santos Dumont supercomputer are compared using three selected test cases. Python includes specific libraries, devel- opment tools, implementations, documentation and optimization or parallelization resources. It provides a straightforward way to allow programs to be written with a high level of abstraction, but the parallelization features to exploit multiple cores, processors or accelerators such as GPUs are diverse and may not be easily selectable by the programmer. This work compares common approaches in Python to increase computing performance. Three test cases are presented: a finite difference method for solving partial differential equations resulting from Poisson equations, a three- dimensional discrete Fourier transform method, and a random decision forest for ensemble learning method. The corresponding serial and parallel implementations in Fortran 90 were taken as references to compare their performance with some serial and parallel Python implementations of the corresponding algorithm. In addition to the performance results, a discussion of the trade-off between ease of programming and processing performance is included. This work is intended as a primer for using parallel HPC resources in Python.
title: ADCO, Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Cart. 169 (11 H 63), f. 0080v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2011
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Archives départementales de la Côte-d'Or, Cart. 169 (11 H 63), f. 0080v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux dit Cartularium Vetus (milieu XIIIe siècle) et Notices du XIIe siècle, Archives départementales de la Côte-d'Or, Cart. 169 (11 H 63), f. 0080v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Automated Calculation of Thermal Rate Coefficients using Ring Polymer Molecular Dynamics and Machine-Learning Interatomic Potentials with Active Learning
Creators: name: Novikov, Ivan S.
name: Suleimanov, Yury V.
name: Shapeev, Alexander V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We propose a methodology for fully automated calculation of thermal rate coefficients of gas phase chemical reactions, which is based on combining the ring polymer molecular dynamics (RPMD) with the machine-learning interatomic potentials actively learning on-the-fly. Based on the original computational procedure implemented in the RPMDrate code, our methodology gradually and automatically constructs the potential energy surfaces (PESs) from scratch with the data set points being selected and accumulated during the RPMDrate simulation. Such an approach ensures that our final machine-learning model provides reliable description of the PES which avoids artifacts during exploration of the phase space by RPMD trajectories. We tested our methodology on two representative thermally activated chemical reactions studied recently by RPMDrate at temperatures within the interval of 300--1000~K. The corresponding PESs were generated by fitting to only a few thousands automatically generated structures (less than 5000) while the RPMD rate coefficients retained the deviation from the reference values within the typical convergence error of RPMDrate. In future, we plan to apply our methodology to chemical reactions which proceed via complex-formation thus providing a completely general tool for calculating RPMD thermal rate coefficients for any polyatomic gas phase chemical reaction.
Additional file 2: of Autozygosity islands and ROH patterns in Nellore lineages: evidence of selection for functionally important traits
Creators: name: Peripolli, Elisa
name: Metzger, Julia
name: Lemos, Marcos De
name: Nedenia Stafuzza
name: Kluska, Sabrina
name: Olivieri, Bianca
name: Fabieli Feitosa
name: Berton, Mariana
name: Lopes, Fernando
name: Danísio Munari
name: Raysildo Lôbo
name: Magnabosco, Cláudio De Ulhoa
name: Croce, Fernando Di
name: Osterstock, Jason
name: Denise, Sue
name: Pereira, Angélica
name: Baldi, Fernando
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Autozygosity islands within the Nellore lineages by chromosome: Karvadi (red), Golias (Black), Godhavari (Green), Taj Mahal (blue), Akasamu (purple), and Nagpur (yellow). (PDF 31 kb)
Review of Screening and Monitoring Treatment of ADHD in Adults with Processing-Speed
Creators: name: Nielsen, Niels Peter
name: Wiig, Elisabeth H.
Publisher: name: Zenodo
Year: 2021
Subjects: ADHD
adults
screening
treatment
stimulant medication
dose optimization

description: The review objective was to examine characteristics and clinical uses of processing-speed measures in the management of adults with attention deficit/hyperactivity disorder. Normative and clinical data indicate no gender bias, high test-retest reliability, and acceptable levels of concurrent validity required for neuropsychological assessment. Recurring patterns in color-form naming and overhead values for adults with ADHD differ from those of healthy adults and adults with depression without ADHD or with dementia. The processing-speed profiles indicate average-normal response times for single-dimension colors and forms, longer-than-average response times for color-form combinations, and larger-than-average overhead values. Independent studies that monitored methylphenidate dose effects in medication-naïve and previously-medicated adults with ADHD and ADHD substance use disorder indicate statistical differences between color-form naming times and overhead measures at baseline without medication and at endpoint with stimulant medication. Results suggest that the measures may complement observational ratings of ADHD symptomatology in screening and monitoring stimulant-medication effects.
Anas mollissima Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Anseriformes
Anatidae
Anas
Anas mollissima

description: Anas mollissima [spec. nov.]
A. rostro cylindrico, cera postice bifida rugosa. Fn. svec. 94.
Anas plumis mollissimis. Barth. act. 1. p. 90. Worm. mus. 310. Will. orn. 277. Raj. av. 141.
Anas magna nigra & alba. Edw. av. 98. t. 98.
Habitat in Europa boreali, pelagica. It. gotl. 213. deplumatur in nida: plumis mollissimis, praestantissimis, pretiosissimis.
Mas albus, subtus posticeque niger. Femina grisea.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 124, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states
Creators: name: Yan, Mao-Jun
name: Liu, Xiao-Hai
name: Gonzàlez-Solís, Sergi
name: Guo, Feng-Kun
name: Hanhart, Christoph
name: Meißner, Ulf-G.
name: Zou, Bing-Song
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The discovery of $Ξ_{cc}^{++}$ by the LHCb Collaboration triggers predictions of more doubly charmed baryons. By taking into account both the $P$-wave excitations between the two charm quarks and the scattering of light pseudoscalar mesons off the ground state doubly charmed baryons, a set of negative-parity spin-1/2 doubly charmed baryons are predicted already from a unitarized version of leading order chiral perturbation theory. Moreover, employing heavy antiquark-diquark symmetry the relevant low-energy constants in the next-to-leading order are connected with those describing light pseudoscalar mesons scattering off charmed mesons, which have been well determined from lattice calculations and experimental data. Our calculations result in a spectrum richer than that of heavy mesons. We find two very narrow $J^P=1/2^-$ $Ω_{cc}^P$, which very likely decay into $Ω_{cc}π^0$ breaking isospin symmetry. In the isospin-1/2 $Ξ_{cc}^P$ sector, three states are predicted to exist below 4.2~GeV with the lowest one being narrow and the other two rather broad. We suggest to search for the $Ξ_{cc}^{P}$ states in the $Ξ_{cc}^{++}π^-$ mode. Searching for them and their analogues are helpful to establish the hadron spectrum.
description: 6 pages, 3 figures; accepted for publication as a Rapid Communication in Physical Review D
Hybrid silicon all-optical switching devices integrated with two-dimensional material
Creators: name: Yamashita, Daiki
name: Fang, Nan
name: Fujii, Shun
name: Kato, Yuichiro K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We propose and demonstrate hybrid all-optical switching devices that combine silicon nanocavities and two-dimensional semiconductor material. By exploiting the refractive index modulation caused by photo-induced carriers in the two-dimensional material instead of the silicon substrate, we overcome the switching performance limitation imposed by the substrate material. Air-mode photonic crystal nanobeam cavities capable of efficient interaction with two-dimensional materials are fabricated, and molybdenum ditelluride, a two-dimensional material with rapid carrier recombination, is transferred onto the cavities. The molybdenum ditelluride flake is excited by an optical pump pulse to shift the resonant wavelength of the cavity for switching operation. We have successfully achieved all-optical switching operations on the time scale of tens of picoseconds while requiring low switching energies of a few hundred femtojoules.
description: 7 pages, 5 figures