cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PulseDL-II: A System-on-Chip Neural Network Accelerator for Timing and Energy Extraction of Nuclear Detector Signals
Creators: name: Ai, Pengcheng
name: Deng, Zhi
name: Wang, Yi
name: Gong, Hui
name: Ran, Xinchi
name: Lang, Zijian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Hardware Architecture (cs.AR)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Front-end electronics equipped with high-speed digitizers are being used and proposed for future nuclear detectors. Recent literature reveals that deep learning models, especially one-dimensional convolutional neural networks, are promising when dealing with digital signals from nuclear detectors. Simulations and experiments demonstrate the satisfactory accuracy and additional benefits of neural networks in this area. However, specific hardware accelerating such models for online operations still needs to be studied. In this work, we introduce PulseDL-II, a system-on-chip (SoC) specially designed for applications of event feature (time, energy, etc.) extraction from pulses with deep learning. Based on the previous version, PulseDL-II incorporates a RISC CPU into the system structure for better functional flexibility and integrity. The neural network accelerator in the SoC adopts a three-level (arithmetic unit, processing element, neural network) hierarchical architecture and facilitates parameter optimization of the digital design. Furthermore, we devise a quantization scheme compatible with deep learning frameworks (e.g., TensorFlow) within a selected subset of layer types. We validate the correct operations of PulseDL-II on field programmable gate arrays (FPGA) alone and with an experimental setup comprising a direct digital synthesis (DDS) and analog-to-digital converters (ADC). The proposed system achieved 60 ps time resolution and 0.40% energy resolution at signal to noise ratio (SNR) of 47.4 dB.
description: Accepted by IEEE Transactions on Nuclear Science
Geometry of some moduli of bundles over a very general sextic surface for small second Chern classes and Mestrano-Simpson Conjecture
Creators: name: Bhattacharya, Debojyoti
name: Pal, Sarbeswar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $S \subset \mathbb P^3$ be a very general sextic surface over complex numbers. Let $\mathcal{M}(H, c_2)$ be the moduli space of rank $2$ stable bundles on $S$ with fixed first Chern class $H$ and second Chern class $c_2$. In this article we study the configuration of points of certain reduced zero dimensional subschemes on $S$ satisfying Cayley-Bacharach property, which leads to the existence of non-trivial sections of a general memeber of the moduli space for small $c_2$. Using this study we will make an attempt to prove Mestrano-Simpson conjecture on the number of irreducible components of $\mathcal{M}(H, 11)$ and prove the conjecture partially. We will also show that $\mathcal{M}(H, c_2)$ is irreducible for $c_2 \le 10$ .
description: Final version, to appear in Bull. Sci. Math
Material from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads.
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Details of fossil and comparative material used in the study
Topological phase in a $d_{x^2-y^2}+(p+ip)$ superconductor in presence of spin-density-wave
Creators: name: Gupta, Amit
name: Sa, Debanand
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider a mean-field Hamiltonian for a $d_{x^2-y^2}+(p+ip)$ superconductor(SC) in presence of spin-density-wave(SDW) order. This is due to the fact that the non-commutativity of any two orders produces the third one. The energy spectrum of such a Hamiltonian is shown to be gapped and it yields a topological phase in addition to the conventional one. A phase diagram characterizing different topological phases is construted. The Chern numbers and hence the nature of the topological phases are determined. The edge state spectrum and the possibility of whether the vortex state harbouring the zero modes are discussed.
description: 5 pages, 3 figures
Superflare activity on the southern active binary CC Eri
Creators: name: Leitzinger, Martin
name: Odert, Petra
name: Greimel, Robert
name: Kabath, Petr
name: Liptak, Jozef
name: Karjalainen, Rajne
name: Heinzel, Petr
name: Wollmann, Jiri
name: Guenther, Eike W.
Publisher: name: Zenodo
Year: 2024

description: Superflares are a subject of interest for the last decade when the first statistical analysis ofsuperflares was conducted. So far superflares have been observed spectroscopically recently inHalpha only and in the past very rarely. We present Echelle spectroscopic monitoring of theyoung and active southern dK+dM dwarf binary CC Eri. More than 2000 spectra have been recordedsumming up to 190 hours of on source time. The spectra have been obtained through thePlatoSpec consortium at the ESO1.52m telescope on LaSilla, Chile. In addition to the spectroscopicmonitoring, the ESO1.52m is capable of doing ccordinated g'-band photometry. We havedetected so far 18 flares determined from Halpha equivalent width light curves and two fromphotometry. The two g'-band flares reveal superflare energies and one Halpha flare aloneshows already superflare energies. We have identified several line asymmetries occuring duringthe flares from which we show two examples. We furthermore discuss preliminary results ofcomparative spectral line analysis between flares and superflares.

Theme(s): The Sun and Cool Stars in the Time Domain, Cool Stars as Stellar Systems
Methods from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads.
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Methods used in the study
Particulate Air Pollutants and Trajectories of Depressive Symptoms in Older Women
Creators: name: Vizuete, W.
name: Wang, X.
name: Chui, H.
name: Gatz, M.
name: Serre, M.
name: Manson, J.E.
name: Resnick, S.
name: Younan, D.
name: Chen, J.-C.
name: Petkus, A.J.
name: Espeland, M.A.
Publisher: name: Elsevier B.V.
Year: 2019

description: Objectives: Although several environmental factors contribute to the etiology of late-life depressive symptoms, the role of ambient air pollution has been understudied. Experimental data support the neurotoxicity of airborne particulate matter with aerodynamic diameter of ≤2.5 μm (PM2.5), but it remains unclear whether long-term exposure is associated with late-life depressive symptoms. Our secondary aim was to explore whether the observed associations between exposure and depressive symptoms are explained by dementia risk. Design, Setting, and Participants: Prospective community-dwelling cohort study from the Women's Health Initiative Study of Cognitive Aging (1999–2010). Our analyses included 1,989 older women (baseline age 73.3 ± 3.75) with no prior depression or cognitive impairment. Measurements: Participants completed annual assessments of depressive symptoms (15-item Geriatric Depression Scale). Average ambient PM2.5 exposure at the residential location was estimated by spatiotemporal modeling for the 3-years preceding each neuropsychological assessment. Participants underwent separate annual examinations for incident dementia defined by DSM-IV. Latent-class mixture models examined the association between PM2.5 and identified trajectories of symptoms. Results: Six trajectories of depressive symptoms were identified. Across all women, PM2.5 exposure was positively associated with depressive symptoms. The effect was especially strong in two clusters with sustained depressive symptoms (n = 625 sustained-mild [31%]; n = 125 sustained-moderate; [6%]). Among those with sustained-moderate symptoms, the estimated adverse effect of PM2.5 exposure was greater than that of hypertension. Among women without dementia, associations were modestly attenuated. Conclusion: Long-term exposure to ambient fine particles was associated with increased depressive symptoms among older women without prior depression or cognitive impairment.
Bayesian Models Applied to Cyber Security Anomaly Detection Problems
Creators: name: Perusquía, José A.
name: Griffin, Jim E.
name: Villa, Cristiano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Cyber security is an important concern for all individuals, organisations and governments globally. Cyber attacks have become more sophisticated, frequent and dangerous than ever, and traditional anomaly detection methods have been proved to be less effective when dealing with these new classes of cyber threats. In order to address this, both classical and Bayesian models offer a valid and innovative alternative to the traditional signature-based methods, motivating the increasing interest in statistical research that it has been observed in recent years. In this review we provide a description of some typical cyber security challenges, typical types of data and statistical methods, paying special attention to Bayesian approaches for these problems.
Quasirational relation modules and p-adic Malcev completions
Creators: name: Mikhovich, Andrey
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 55P15, 55P62

description: We introduce the concept of quasirational relation modules for discrete (pro- p) presentations of discrete (pro-p) groups. It is shown, that this class of presentations for discrete groups contains CA-presentations and their subpresentations. For pro-p-groups we see that all presentations of pro-p-groups with a single defining relation are quasirational. We offer definitions of p- adic G(p)-completion and p-adic rationalization of relation modules which are adjusted to quasirational pro-p-presentations. p-adic rationalizations of quasirational relation modules of pro-p-groups are isomorphic to abelianized p-adic Malcev completions.
description: This is a final version, is accepted for publication in the special issue of the journal "Topology and its Applications" dedicated to "2014 International Conference on Topology and its Applications"
Software Tools for Decoding Quantum Low-Density Parity Check Codes
Creators: name: Berent, Lucas
name: Burgholzer, Lukas
name: Wille, Robert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum Error Correction (QEC) is an essential field of research towards the realization of large-scale quantum computers. On the theoretical side, a lot of effort is put into designing error-correcting codes that protect quantum data from errors, which inevitably happen due to the noisy nature of quantum hardware and quantum bits (qubits). Protecting data with an error-correcting code necessitates means to recover the original data, given a potentially corrupted data set-a task referred to as decoding. It is vital that decoding algorithms can recover error-free states in an efficient manner. While theoretical properties of recent QEC methods have been extensively studied, good techniques to analyze their performance in practically more relevant settings is still a widely unexplored area. In this work, we propose a set of software tools that allows to numerically experiment with so-called Quantum Low-Density Parity Check codes (QLDPC codes)-a broad class of codes, some of which have recently been shown to be asymptotically good. Based on that, we provide an implementation of a general decoder for QLDPC codes. On top of that, we propose an efficient heuristic decoder that tackles the runtime bottlenecks of the general QLDPC decoder while still maintaining comparable decoding performance. These tools eventually allow to confirm theoretical results around QLDPC codes in a more practical setting and showcase the value of software tools (in addition to theoretical considerations) for investigating codes for practical applications. The resulting tool, which is publicly available at https://github.com/lucasberent/qecc under the MIT license, is meant to provide a playground for the search for "practically good" quantum codes.
description: 6 pages, 5 figures
Α-Pinene-Derived organic coatings on acidic sulfate aerosol impacts secondary organic aerosol formation from isoprene in a box model
Creators: name: Schmedding, R.
name: Pye, H.O.T.
name: Zhang, Y.
name: Ma, M.
name: Wang, C.-T.
name: Vizuete, W.
name: Chen, Y.
name: Rasool, Q.Z.
name: Surratt, J.D.
name: Budisulistiorini, S.H.
name: Farrell, S.
name: Ault, A.P.
Publisher: name: Elsevier Ltd
Year: 2019

description: Fine particulate matter (PM2.5) is known to have an adverse impact on public health and is an important climate forcer. Secondary organic aerosol (SOA) contributes up to 80% of PM2.5 worldwide and multiphase reactions are an important pathway to form SOA. Aerosol-phase state is thought to influence the reactive uptake of gas-phase precursors to aerosol particles by altering diffusion rates within particles. Current air quality models do not include the impact of diffusion-limiting organic coatings on SOA formation. This work examines how α-pinene-derived organic coatings change the predicted formation of SOA from the acid-catalyzed multiphase reactions of isoprene epoxydiols (IEPOX). A box model, with inputs provided from field measurements taken at the Look Rock (LRK) site in Great Smokey Mountains National Park during the 2013 Southern Oxidant and Aerosol Study (SOAS), was modified to incorporate the latest laboratory-based kinetic data accounting for organic coating influences. Including an organic coating influence reduced the modeled reactive uptake when relative humidity was in the 55–80% range, with predicted IEPOX-derived SOA being reduced by up to 33%. Only sensitivity cases with a large increase in Henry's Law values of an order of magnitude or more or in particle reaction rates resulted in the large statistically significant differences form base model performance. These results suggest an organic coating layer could have an impact on IEPOX-derived SOA formation and warrant consideration in regional and global scale models.
Associated flora from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads.
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Data on the associated Castle Rock flora
Steady-state dc transport through an Anderson impurity coupled to leads with spin-orbit coupling
Creators: name: Mirmira, Anirudha
name: Vidhyadhiraja, N. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the steady-state dc transport characteristics of a system comprised of an interacting quantum dot, modelled as an Anderson impurity, coupled to two metallic non-interacting leads with Rashba SOC, using an interpolative perturbative approach (IPA). The single-particle spectra, current and differential conductance are obtained in weak and strong coupling regimes over a wide range of SOC and bias values. Extensive benchmarking of the IPA validates the method in the linear as well as non-linear response regime. The universal, zero bias ($V_{sd}=0$) peak with a width proportional to the Kondo scale ($T_K$) and two non-universal finite bias peaks around $V_{sd}=\pm U$ in the zero temperature differential conductance show a clear separation with increasing $U$ or increasing SOC. In the strong coupling regime, increasing temperature induces melting of the zero bias peak leading to a crossover from a three-peak conductance to a two-peak conductance. Recent experiments find the emergence of a two-peak structure by increasing SOC at a fixed temperature. Our results appear to provide a qualitative explanation of these observations as a SOC tuned crossover from weak/intermediate to strong coupling, and a simultaneous crossover from low $T/T_K$ to high $T/T_K$ ratio. We also reproduce the experimentally observed temperature dependence of the zero bias conductance.
description: 14 pages, 10 figures
Towards understanding dynamo action in M dwarfs
Creators: name: Shulyak, D.
name: Sokoloff, D.
name: Kitchatinov, L.
name: Moss, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent progress in observational studies of magnetic activity in M dwarfs urgently requires support from ideas of stellar dynamo theory. We propose a strategy to connect observational and theoretical studies. In particular, we suggest four magnetic configurations that appear relevant to dwarfs from the viewpoint of the most conservative version of dynamo theory, and discuss observational tests to identify the configurations observationally. As expected, any such identification contains substantial uncertainties. However the situation in general looks less pessimistic than might be expected. Several identifications between the phenomenology of individual stars and dynamo models are suggested. Remarkably, all models discussed predict substantial surface magnetic activity at rather high stellar latitudes. This prediction looks unexpected from the viewpoint of our experience observing the Sun (which of course differs in some fundamental ways from these late-type dwarfs). We stress that a fuller understanding of the topic requires a long-term (at least 15 years) monitoring of M dwarfs by Zeeman-Doppler imaging.
description: 8 pages, 4 figures, accepted by MNRAS
The dihedral Dunkl--Dirac symmetry algebra with negative Clifford signature
Creators: name: Langlois-Rémillard, Alexis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The Dunkl--Dirac symmetry algebra is an associative subalgebra of the tensor product of a Clifford algebra and the faithful polynomial representation of a rational Cherednik algebra. In previous work, the finite-dimensional representations of the Dunkl--Dirac symmetry algebra in three dimensions linked with a dihedral group were given. We give here the necessary results to proceed to the same construction when the Clifford algebra in the tensor product has negative signature.
description: 7p. To appear as contribution to the proceedings of LT-XIV 2021
Impact of Anisotropic Birefringence on Measuring Cosmic Microwave Background Lensing
Creators: name: Cai, Hongbo
name: Guan, Yilun
name: Namikawa, Toshiya
name: Kosowsky, Arthur
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The power spectrum of cosmic microwave background lensing is a powerful tool for constraining fundamental physics such as the sum of neutrino masses and the dark energy equation of state. Current lensing measurements primarily come from distortions to the microwave background temperature field, but the polarization lensing signal will dominate upcoming experiments with greater sensitivity. Cosmic birefringence refers to the rotation of the linear polarization direction of microwave photons propagating from the last scattering surface to us, which can be induced by parity-violating physics such as axion-like dark matter or primordial magnetic fields. We find that, for an upcoming CMB-S4-like experiment, if there exists the scale-invariant anisotropic birefringence with an amplitude corresponding to the current $95\%$ upper bound, the measured lensing power spectrum could be biased by up to a factor of few at small scales, $L\gtrsim 1000$. We show that the bias scales linearly with the amplitude of the scale-invariant birefringence spectrum. The signal-to-noise of the contribution from anisotropic birefringence is larger than unity even if the birefringence amplitude decreases to $\sim 5\%$ of the current upper bound. Our results indicate that a measurement and characterization of the anisotropic birefringence is important for lensing analysis in future low-noise polarization experiments.
description: 13 pages, 5 figures, to be submitted to PRD
A Capability and Skill Model for Heterogeneous Autonomous Robots
Creators: name: da Silva, Luis Miguel Vieira
name: Köcher, Aljosha
name: Fay, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Teams of heterogeneous autonomous robots become increasingly important due to their facilitation of various complex tasks. For such heterogeneous robots, there is currently no consistent way of describing the functions that each robot provides. In the field of manufacturing, capability modeling is considered a promising approach to semantically model functions provided by different machines. This contribution investigates how to apply and extend capability models from manufacturing to the field of autonomous robots and presents an approach for such a capability model.
KELT-8b: A highly inflated transiting hot Jupiter and a new technique for extracting high-precision radial velocities from noisy spectra
Creators: name: Fulton, Benjamin J.
name: Collins, Karen A.
name: Gaudi, B. Scott
name: Stassun, Keivan G.
name: Pepper, Joshua
name: Beatty, Thomas G.
name: Siverd, Robert J.
name: Penev, Kaloyan
name: Howard, Andrew W.
name: Baranec, Christoph
name: Corfini, Giorgio
name: Eastman, Jason D.
name: Gregorio, Joao
name: Law, Nicholas M.
name: Lund, Michael B.
name: Oberst, Thomas E.
name: Penny, Matthew T.
name: Riddle, Reed
name: Rodriguez, Joseph E.
name: Stevens, Daniel J.
name: Zambelli, Roberto
name: Ziegler, Carl
name: Bieryla, Allyson
name: D`Ago, Giuseppe
name: DePoy, Darren L.
name: Jensen, Eric L. N.
name: Kielkopf, John F.
name: Latham, David W.
name: Manner, Mark
name: Marshall, Jennifer
name: McLeod, Kim K.
name: Reed, Phillip A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We announce the discovery of a highly inflated transiting hot Jupiter discovered by the KELT-North survey. A global analysis including constraints from isochrones indicates that the V = 10.8 host star (HD 343246) is a mildly evolved, G dwarf with $T_{\rm eff} = 5754_{-55}^{+54}$ K, $\log{g} = 4.078_{-0.054}^{+0.049}$, $[Fe/H] = 0.272\pm0.038$, an inferred mass $M_{*}=1.211_{-0.066}^{+0.078}$ M$_{\odot}$, and radius $R_{*}=1.67_{-0.12}^{+0.14}$ R$_{\odot}$. The planetary companion has mass $M_P = 0.867_{-0.061}^{+0.065}$ $M_{J}$, radius $R_P = 1.86_{-0.16}^{+0.18}$ $R_{J}$, surface gravity $\log{g_{P}} = 2.793_{-0.075}^{+0.072}$, and density $ρ_P = 0.167_{-0.038}^{+0.047}$ g cm$^{-3}$. The planet is on a roughly circular orbit with semimajor axis $a = 0.04571_{-0.00084}^{+0.00096}$ AU and eccentricity $e = 0.035_{-0.025}^{+0.050}$. The best-fit linear ephemeris is $T_0 = 2456883.4803 \pm 0.0007$ BJD$_{\rm TDB}$ and $P = 3.24406 \pm 0.00016$ days. This planet is one of the most inflated of all known transiting exoplanets, making it one of the few members of a class of extremely low density, highly-irradiated gas giants. The low stellar $\log{g}$ and large implied radius are supported by stellar density constraints from follow-up light curves, plus an evolutionary and space motion analysis. We also develop a new technique to extract high precision radial velocities from noisy spectra that reduces the observing time needed to confirm transiting planet candidates. This planet boasts deep transits of a bright star, a large inferred atmospheric scale height, and a high equilibrium temperature of $T_{eq}=1675^{+61}_{-55}$ K, assuming zero albedo and perfect heat redistribution, making it one of the best targets for future atmospheric characterization studies.
description: Submitted to ApJ, feedback is welcome
(1172) Mary A F [Smith]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Descriptions from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads.
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Morphological descriptions of fossil material and figures
Increasing Isoprene Epoxydiol-to-Inorganic Sulfate Aerosol Ratio Results in Extensive Conversion of Inorganic Sulfate to Organosulfur Forms: Implications for Aerosol Physicochemical Properties
Creators: name: Lei, Z.
name: De Souza, R.A.F.
name: Oliveira, R.L.E.
name: Goldstein, A.H.
name: Jimenez, J.-L.
name: Ribeiro, I.O.
name: Zhao, Y.
name: Ault, A.P.
name: Gold, A.
name: Vizuete, W.
name: Budisulistiorini, S.H.
name: Machado, C.M.D.
name: Narayan, S.
name: Edgerton, E.
name: Riva, M.
name: Duvoisin Junior, S.
name: Pye, H.O.T.
name: Rose, C.A.
name: Shaw, S.L.
name: Martin, S.T.
name: Alves, E.G.
name: Szopa, S.
name: Surratt, J.D.
name: Green, H.S.
name: Yee, L.D.
name: Boyer, H.C.
name: Knipping, E.M.
name: Turpin, B.J.
name: Hu, W.
name: Baumann, K.
name: Zhang, Z.
name: Fort, M.
name: Cui, T.
name: Palm, B.B.
name: Thornton, J.A.
name: Zhang, Y.
name: Dos Santos, E.O.
name: Olson, N.E.
name: Glasius, M.
name: De Sá, S.S.
name: Dutcher, C.S.
name: Chen, Y.
Publisher: name: American Chemical Society
Year: 2019

description: Acid-driven multiphase chemistry of isoprene epoxydiols (IEPOX), key isoprene oxidation products, with inorganic sulfate aerosol yields substantial amounts of secondary organic aerosol (SOA) through the formation of organosulfur compounds. The extent and implications of inorganic-to-organic sulfate conversion, however, are unknown. In this article, we demonstrate that extensive consumption of inorganic sulfate occurs, which increases with the IEPOX-to-inorganic sulfate concentration ratio (IEPOX/Sulfinorg), as determined by laboratory measurements. Characterization of the total sulfur aerosol observed at Look Rock, Tennessee, from 2007 to 2016 shows that organosulfur mass fractions will likely continue to increase with ongoing declines in anthropogenic Sulfinorg, consistent with our laboratory findings. We further demonstrate that organosulfur compounds greatly modify critical aerosol properties, such as acidity, morphology, viscosity, and phase state. These new mechanistic insights demonstrate that changes in SO2 emissions, especially in isoprene-dominated environments, will significantly alter biogenic SOA physicochemical properties. Consequently, IEPOX/Sulfinorg will play an important role in understanding the historical climate and determining future impacts of biogenic SOA on the global climate and air quality.
title: Cervical stiffness revealing a hodgkin lymphoma.
title: Raideur cervicale révélant un lymphome de Hodgkin.
Creators: name: Djossou H. Julien
Publisher: name: Revue Marocaine de Rhumatologie (RMR)
Year: 2019
Subjects: Lymphome de hodgkin; Raideur cervicale.

description: This is the case of a young 18-year-old subject who presented cervical stiffness in a weight loss context. During explorations, the MRI revealed a right iliac lymphadenopathy which led to the diagnosis of Hodgkin’s lymphoma. After two cycles of chemotherapy, a clear improvement was observed.
description: Il s’agit de l’observation d’un jeune patient de 18 ans qui a présenté une raideur cervicale dans un contexte d’amaigrissement. Au cours des explorations, l’IRM a révélé une adénopathie iliaque droite qui a permis d’aboutir au diagnostic de lymphome de Hodgkin. Après deux cures de chimiothérapie, une nette amélioration a été observée.
(1173) John Metcalf Smith
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
An embedding of the Morse boundary in the Martin boundary
Creators: name: Cordes, Matthew
name: Dussaule, Matthieu
name: Gekhtman, Ilya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Metric Geometry (math.MG)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We construct a one-to-one continuous map from the Morse boundary of a hierarchically hyperbolic group to its Martin boundary. This construction is based on deviation inequalities generalizing Ancona's work on hyperbolic groups. This provides a possibly new metrizable topology on the Morse boundary of such groups. We also prove that the Morse boundary has measure 0 with respect to the harmonic measure unless the group is hyperbolic.
Methods from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Methods used in the study
The spectral curve theory for $(k,l)-$symmetric CMC surfaces
Creators: name: Heller, Lynn
name: Heller, Sebastian
name: Schmitt, Nicholas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10, 53C42, 53C43

description: Constant mean curvature surfaces in $S^3$ can be studied via their associated family of flat connections. In the case of tori this approach has led to a deep understanding of the moduli space of all CMC tori. For compact CMC surfaces of higher genus the theory is far more involved due to the non abelian nature of their fundamental group. In this paper we extend the spectral curve theory for tori developed in \cite{Hi, PiSt} and for genus $2$ surfaces \cite{He3} to CMC surfaces in $S^3$ of genus $g=k\cdot l$ with commuting $\mathbb Z_{k+1}$ and $\mathbb Z_{l+1}$ symmetries. We determine their associated family of flat connections via certain flat line bundle connections parametrized by the spectral curve. We generalize the flow on spectral data introduced in \cite{HeHeSch} and prove the short time existence of this flow for certain families of initial surfaces. In this way we obtain various families of new CMC surfaces of higher genus with prescribed branch points and prescribed umbilics.
description: 17 pages, 2 figures; comments are welcome. arXiv admin note: text overlap with arXiv:1501.01929
Material from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Details of fossil and comparative material used in the study
title: Celluloid love: audiences and representations of romantic
 love in late capitalism
Creators: name: de la Pava Velez, Benjamin
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2017
Subjects: subject: P Language and Literature
subject: PN Literature (General)
subject: PN1993 Motion Pictures

description: My doctoral research analyses contemporary North American romantic films and the meanings brought to and made from them by socially and economically diverse audiences in London. It does so in the context of a historicised and ideologically alert account of connections between biological, psychoanalytic, anthropological and sociological theorisations of romantic love and its screen depictions. In particular, my audience-led textual analysis of discourses of Euro-American romantic love is driven by an engagement with three claims: First, that neoliberal or late-capitalist individualism has engendered a ‘crisis of romantic love’ which has reshaped the social and personal promises of coupledom and intimacy. Second, that popular film, the prime contemporary medium of representation for romance, cynically portrays this supposed crisis in an effort to capitalise on audience fears; and third, that audiences of these films experience the ‘crisis’, fashioning their romantic identities and practices in its shadow. Methodologically, the study involved a reflexive and recursive textual analysis of five North American films: Blue Valentine, (500) Days of Summer, Don Jon, Her, and Once. Using these films, I carried out 36 group interviews with (87) inhabitants of the multicultural Borough of Hackney, in East London, the results of which then fed into and informed my readings of the films. Subsequent thematic coding of group interviews revealed overlapping areas pertinent to the project: Technology, class, gender and coupledom. Findings include the suggestion that both romantic films and their audiences in Western Europe are currently adapting strategies, practices and ideas of romantic love and relationships to a new environment of precarious intimacy, technological mediation, and anxiety over economic, professional and personal stability.
 My analysis concludes that while intersections of class, race and gender continue to inflect audience experience and meaning-making, the current romantic environment that audiences are navigating - and that romantic films purportedly represent - is indeed markedly different from that of the last century. However, claims about the crisis of romantic love are not only greatly exaggerated, but usually also erroneously conflate the pain, anxiety and frailty of contemporary relationships and intimacy with a narcissistic,
 ego-centric definition of love as a form of consumption.
A general framework for probabilistic sensitivity analysis with respect to distribution parameters
Creators: name: Yang, Jiannan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Numerical Analysis (math.NA)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Probabilistic sensitivity analysis identifies the influential uncertain input to guide decision-making. We propose a general sensitivity framework with respect to the input distribution parameters that unifies a wide range of sensitivity measures, including information theoretical metrics such as the Fisher information. The framework is derived analytically via a constrained maximization and the sensitivity analysis is reformulated into an eigenvalue problem. There are only two main steps to implement the sensitivity framework utilising the likelihood ratio/score function method, a Monte Carlo type sampling followed by solving an eigenvalue equation. The resulting eigenvectors then provide the directions for simultaneous variations of the input parameters and guide the focus to perturb uncertainty the most. Not only is it conceptually simple, but numerical examples demonstrate that the proposed framework also provides new sensitivity insights, such as the combined sensitivity of multiple correlated uncertainty metrics, robust sensitivity analysis with an entropic constraint, and approximation of deterministic sensitivities. Three different examples, ranging from a simple cantilever beam to an offshore marine riser, are used to demonstrate the potential applications of the proposed sensitivity framework to applied mechanics problems.
description: The datasets generated during and/or analysed during the current study are available in the GitHub repository: https://github.com/longitude-jyang/Probabilistic-sensitivity-framework; Accepted for publication at Probabilistic Engineering Mechanics
Leaf enclosure measurements for determining volatile organic compound emission capacity from Cannabis spp.
Creators: name: Vizuete, W.
name: Ortega, J.
name: Harley, P.C.
name: Wiedinmyer, C.
name: Ashworth, K.
name: Wang, C.-T.
Publisher: name: Elsevier Ltd
Year: 2019

description: The legal commercialization of Cannabis for recreational and medical use in certain US states has effectively created a new and nearly unregulated cultivation industry. Within the city limits of Denver, Colorado, there are now more than 600 registered Cannabis spp. cultivation facilities (CCFs) for recreational and medical uses, each containing thousands of plants. Ambient measurements collected inside growing operations pre-legalization have found concentrations as high as 50–100 ppbv of terpenes; a group of highly reactive biogenic volatile organic compounds (BVOCs) and known precursors for the formation of ozone and particulate matter (PM). Due to its illicit nature there has been insufficient experimental data produced to determine Cannabis spp. emission rates. This study used, for the first time, an enclosure chamber and live Cannabis spp. plants during a 90-day growing period consisting of four different strains of Cannabis spp.: Critical Mass, Lemon Wheel, Elephant Purple, and Rockstar Kush. These measurements enabled characterization of terpenes and estimates of emission capacity (EC, μgC g−1 hr−1) at standard conditions. During peak growth, the percentages of individual BVOC emissions were dominated by β-myrcene (18–60%), eucalyptol (17–38%), and d-limonene (3–10%) for all strains. Our results showed large variability in the rate and composition of terpene emissions across different strains. For the Critical Mass and Lemon Wheel, the dominant terpenoid was eucalyptol (32% and 38%), and it was β-myrcene (60% and 45%) for the Elephant Purple and Rockstar Kush. Critical Mass produced the highest terpene emission capacity (8.7 μgC g−1 hr−1) and Rockstar Kush the lowest (4.9 μgC g−1 hr−1). With 600 CCFs in Denver, and assuming 10,000 plants per CCF, an emission capacity of 8.7 μgC g−1 hr−1 would more than double the existing rate of BVOC emissions to 520 metric ton year−1. Using Maximum Incremental Reactivity (MIR) values the total ozone formation potential from all these emitted species could produce 2100 metric tons year−1 of ozone, and based on published secondary organic aerosols yields 131 metric tons year−1 of PM. It is likely that the ECs calculated here are lower than those achieved in CCFs where growing conditions are optimized for rapid growth and higher biomass yields. Further studies including a greater number of the 620 available Cannabis spp. strains and a wider range of treatments are needed to generate a representative dataset. Such a dataset could then better enable assessments of the potential impacts of this new industry on indoor and regional air quality.
Quantum Critical Exponents for a Disordered Three-Dimensional Weyl Node
Creators: name: Sbierski, Björn
name: Bergholtz, Emil J.
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Three-dimensional Dirac and Weyl semimetals exhibit a disorder-induced quantum phase transition between a semimetallic phase at weak disorder and a diffusive-metallic phase at strong disorder. Despite considerable effort, both numerically and analytically, the critical exponents $ν$ and $z$ of this phase transition are not known precisely. Here we report a numerical calculation of the critical exponent $ν=1.47\pm0.03$ using a minimal single-Weyl node model and a finite-size scaling analysis of conductance. Our high-precision numerical value for $ν$ is incompatible with previous numerical studies on tight-binding models and with one- and two-loop calculations in an $ε$-expansion scheme. We further obtain $z=1.49\pm0.02$ from the scaling of the conductivity with chemical potential.
Emergence of quasiperiodic behavior in transport and hybridization properties of clean lattice systems
Creators: name: Glittum, Cecilie
name: Štrkalj, Antonio
name: Castelnovo, Claudio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quasiperiodic behaviour is known to occur in systems with enforced quasiperiodicity or randomness, in either the lattice structure or the potential, as well as in periodically driven systems. Here, we present instead a setting where quasiperiodic behaviour emerges in clean, non-driven lattice systems. We illustrate this through two examples of experimental relevance, namely an infinite tight-binding chain with a gated segment, and a hopping particle coupled to static Ising degrees of freedom. We show how the quasiperiodic behaviour manifests in the number of states that are localised by the geometry of the system, with corresponding effects on transport and hybridisation properties.
Associated flora from First cycad seedling foliage from the fossil record and inferences for the Cenozoic evolution of cycads
Creators: name: Boglárka Erdei
name: Coiro, Mario
name: Miller, Ian
name: Johnson, Kirk R.
name: M. Patrick Griffith
name: Murphy, Vickie
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Data on the associated Castle Rock flora
Currents induced by magnetic impurities in superconductors with spin-orbit coupling
Creators: name: Pershoguba, Sergey S.
name: Björnson, Kristofer
name: Black-Schaffer, Annica M.
name: Balatsky, Alexander V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that superconducting currents are generated around magnetic impurities and ferromagnetic islands proximity-coupled to superconductors with finite spin-orbit coupling. Using the Ginzburg-Landau theory, T-matrix calculation, as well as self-consistent numerical simulation on a lattice, we find a strong dependence of the current on the direction and magnitude of the magnetic moment. We establish that in the case of point magnetic impurities, the current is carried by the induced Yu-Shiba-Rusinov (YSR) subgap states. In the vicinity of the phase transition, where the YSR states cross at zero energy, the current increases dramatically. Furthermore, we show that the currents are orthogonal to the local spin polarization and, thus, can be probed by measuring the spin-polarized local density of states.
description: 10 pages, 4 figures. Corresponds to the published version. Footnote (Ref. [34]) added to comment on the magnetoelectric coefficients at the finite temperature
Effect of the Aerosol-Phase State on Secondary Organic Aerosol Formation from the Reactive Uptake of Isoprene-Derived Epoxydiols (IEPOX)
Creators: name: Zhang, Z.
name: Lambe, A.T.
name: Thornton, J.A.
name: Vizuete, W.
name: Olson, N.E.
name: Chen, Y.
name: Worsnop, D.R.
name: Gaston, C.J.
name: Gold, A.
name: Zhang, Y.
name: Surratt, J.D.
name: Ault, A.P.
name: Craig, R.L.
name: Jayne, J.T.
name: Lei, Z.
name: Onasch, T.B.
Publisher: name: American Chemical Society
Year: 2018

description: Acid-catalyzed reactions between gas- and particle-phase constituents are critical to atmospheric secondary organic aerosol (SOA) formation. The aerosol-phase state is thought to influence the reactive uptake of gas-phase precursors to aerosol particles by altering diffusion rates within particles. However, few experimental studies have explored the precise role of the aerosol-phase state on reactive uptake processes. This laboratory study systematically examines the reactive uptake coefficient (γ) of trans-β-isoprene epoxydiol (trans-β-IEPOX), the predominant IEPOX isomer, on acidic sulfate particles coated with SOA derived from α-pinene ozonolysis. γIEPOX is obtained for core-shell particles, the morphology of which was confirmed by microscopy, as a function of SOA coating thickness and relative humidity. γIEPOX is reduced, in some cases by half of the original value, when SOA coatings are present prior to uptake, especially when coating thicknesses are > 15 nm. The diurnal trend of IEPOX lost to acid-catalyzed reactive uptake yielding SOA compared with other known atmospheric sinks (gas-phase oxidation or deposition) is derived by modeling the experimental coating effect with field data from the southeastern United States. IEPOX-derived SOA is estimated to be reduced by 16-27% due to preexisting organic coatings during the afternoon (12:00 to 7:00 p.m., local time), corresponding to the period with the highest level of production.