cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High Resolution Spectroscopy during Eclipse of the Young Substellar Eclipsing Binary 2MASS 0535-0546. I. Primary Spectrum: Cool Spots versus Opacity Uncertainties
Creators: name: Mohanty, Subhanjoy
name: Stassun, Keivan G.
name: Doppmann, Greg W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present high-resolution Keck optical spectra of the very young substellar eclipsing binary 2MASS J05352184-0546085, obtained during eclipse of the lower-mass (secondary) brown dwarf. The observations yield the spectrum of the higher-mass (primary) brown dwarf alone, with negligible (~1.6%) contamination by the secondary. We perform a simultaneous fine-analysis of the TiO-epsilon band and the red lobe of the KI doublet, using state-of-the-art PHOENIX Dusty and Cond synthetic spectra. Comparing the effective temperature and surface gravity derived from these fits to the {\it empirically} determined surface gravity of the primary (logg=3.5) then allows us to test the model spectra as well as probe the prevailing photospheric conditions. We find that: (1) fits to TiO-epsilon alone imply Teff=2500 \pm 50K; (2) at this Teff, fits to KI imply logg=3.0, 0.5 dex lower than the true value; and (3) at the true logg, KI fits yield Teff=2650 \pm 50K, ~150K higher than from TiO-epsilon alone. On the one hand, these are the trends expected in the presence of cool spots covering a large fraction of the primary's surface (as theorized previously to explain the observed Teff reversal between the primary and secondary). Specifically, our results can be reproduced by an unspotted stellar photosphere with Teff=2700K and (empirical) logg=3.5, coupled with axisymmetric cool spots that are 15% cooler (2300K), have an effective logg=3.0 (0.5 dex lower than photospheric), and cover 70% of the surface. On the other hand, the trends in our analysis can also be reproduced by model opacity errors: there are lacks in the synthetic TiO-epsilon opacities, at least for higher-gravity field dwarfs. Stringently discriminating between the two possibilities requires combining the present results with an equivalent analysis of the secondary (predicted to be relatively unspotted compared to the primary).
description: To appear in ApJ. 11 pages, 5 figures
Cannabis and pain : examining the relationship between frequent cannabis use and pain sensitivity
Creators: name: Thiessen, Michelle S.
Publisher: name: University of British Columbia
Year: 2018

description: Recent years have seen an increase in the adoption of cannabinoid medicines and chronic pain has emerged as the most prominent condition treated. Although cannabinoid therapies have been shown to be modestly effective in the treatment of chronic pain across several randomized-controlled trials, the extent to which frequent cannabis use influences sensitivity to acute pain has not been systematically examined. Such a determination is clinically relevant given hypersensitivity to pain associated with prolonged use of other analgesics such as opioids and reports of increased pain sensitivity to experimentally induced pain during acute cannabis intoxication. The present study was the first to examine the effect of frequent cannabis use on pain sensitivity, relative to controls, in the absence of intoxication. Participants (N = 80; 59% female) completed a cold-pressor task and a retrospective pain diary. Results demonstrated that frequent cannabis use was not associated with hyperalgesia as cannabis users (n = 40) and non-users (n = 40) were equally tolerant (OR = 1.01, p > .05) and equally sensitive to pain (OR = 0.93, p > .05) and reported no differences in pain intensity (OR = 1.00, p > .05) or pain in the past-month (OR = 0.85, p > .05), a finding that was consistent across gender. The failure to identify cannabis hyperalgesia represents an important advantage of therapeutic cannabis use for pain therapy.
Combined impact of forest management and climate change on Boletus edulis productivity: may mycosilviculture mitigate the effects of climate extremes?
Creators: name: Salerni, Elena
name: Paoli, Luca
name: Perini, Claudia
Publisher: name: Italian Journal of Mycology
Year: 2023

description: Climate change can affect forest ecosystems, especially through an increase of extreme events. In order to verify whether mycosilvicultural practices could mitigate the effects of climate change, productivity of Boletus edulis in Abies alba managed plantations was correlated to intense rainfall and temperature peaks during three years. Fungal productivity in each of the 21 days following an extreme climatic event was considered. Results showed that sudden increases in maximum temperature seemed to have an inhibitory effect on B. edulis productivity in sites with no or modest thinning. In sites with heavy thinning, productivity seemed to be favoured by high temperatures, starting from the twentieth day following the extreme event. Mycosilviculture may mitigate the climate change effects; however, further studies are needed to verify how climate-dominated effects can be altered by local factors and how ecological relationship between B. edulis and forest ecosystem will be affected.
description: Italian Journal of Mycology, Vol. 52 (2023)
Interior design of a two-dimensional semiclassical black hole: Quantum transition across the singularity
Creators: name: Levanony, Dana
name: Ori, Amos
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the internal structure of a two-dimensional dilatonic evaporating black hole, based on the CGHS model. At the semiclassical level, a (weak) spacelike singularity was previously found to develop inside the black hole. We employ here a simplified quantum formulation of spacetime dynamics in the neighborhood of this singularity, using a minisuperspace-like approach. Quantum evolution is found to be regular and well-defined at the semiclassical singularity. A well-localized initial wave-packet propagating towards the singularity bounces off the latter and retains its well-localized form. Our simplified quantum treatment thus suggests that spacetime may extend semiclassically beyond the singularity, and also signifies the specific extension.
description: Accepted to Phys. Rev. D
Comparison of total amino acid compositions, total phenolic compounds, total flavonoid content, β-carotene content and hydroxyl radical scavenging activity in four wild edible mushrooms
Creators: name: Kopylchuk, Halyna
name: Voloshchuk, Oksana
name: Pasailiuk, Mariia
Publisher: name: Italian Journal of Mycology
Year: 2023

description: The total amino acid compositions, total phenolic compounds, total flavonoid content, β-carotene content and hydroxyl radical scavenging activity in four wild edible mushrooms − Hericium erinaceus, Laetiporus sulphureus, Polyporus umbellatus, Sparassis nemecii have been studied in this work. Maximal indexes of total phenolic compounds in 41.28-43.82 mg of gallic acid equivalents per gram of dry weight were revealed for ethanol extracts of L. sulphureus and H. erinaceus. Maximal index of total flavonoid content in 7.91 mg of quercetin per gram of dw was revealed for ethanol extract of H. erinaceus. The content of β-carotene from ethanol extracts of studied mushrooms ranged from 2.1 to 3.1 µg β-carotene per gram of dw. The most intensive OH scavenging activity is characteristic for ethanol extract of H. erinaceus. The fraction of essential amino acids in mushrooms was 44%, 41.25%, 43.49% and 47.30% in S. nemecii, L. sulphureus, P. umbellatus and H. erinaceus, respectively. The fraction of hydrophobic amino acids ranged from 38.19% in L. sulphureus to 49.5% in H. erinaceus. Therefore, the ethanol extracts of H. erinaceus can be used as a source of compounds with high antioxidant potential. The basidiomata of S. nemecii and P. umbellatus can be recommended for use as a source of amino acids.
description: Italian Journal of Mycology, Vol. 52 (2023)
Natural substances as biocides in the fungi treatment on artistic products to protect the environment and health of restoration workers
Creators: name: Casorri, Laura
name: Masciarelli, Eva
name: Ficociello, Barbara
name: Ietto, Federica
name: Incoronato, Federica
name: Di Luigi, Marco
name: Beni, Claudio
name: Pacioni, Giovanni
Publisher: name: Italian Journal of Mycology
Year: 2023

description: Cultural heritage artefacts, such as stone works, books, manuscripts, and parchments, are subjected to severe biodeterioration processes over time caused by fungi, algae, lichens, and complex communities of microbial biofilms. Fungal contaminations are widespread as active or dormant spores which are present in the air and on objects and can lead to irreversible biodeterioration processes. Highly toxic and hardly biodegradable compounds are commonly used in cultural heritage conservation and restoration practices, which can be harmful even to the treated materials. Therefore, sector operators may be exposed to both biological and chemical risks, and often the failure to use adequate protective equipment increases the exposure risk. The interest of many researchers has been recently orienting, in this sector also, towards the use of natural products, as a valid alternative both for operators' health and environmental protection. This review aims to provide an overview of the biological and chemical risks associated with the treatment of fungal biodeterioration of artistic works and suggests the use of natural substances as a possible alternative to chemical synthetic products for the safety of restoration operators.
description: Italian Journal of Mycology, Vol. 52 (2023)
Achieving channel capacities with nested linear/lattice codes : a unified approach
Creators: name: Qi, Renming
Publisher: name: University of British Columbia
Year: 2018

description: Random nested lattice codes have played an important role in network information theory. However, they are less accessible than conventional random codes because their achievability proofs are often involved, even for the case of the additive white Gaussian noise (AWGN) channel. In sharp contrast, their finite field counterparts, nested linear codes, enjoy much simpler achievability proofs. In this thesis, we make use of an intriguing connection between nested lattice codes and nested linear codes to handle their achievability proofs in a unified approach. As a by-product of this unified approach, we show it’s capable of proving that the algebraic lattice codes constructed using number field could achieve the AWGN channel capacity.
Recurrence plots and chaotic motion around Kerr black hole
Creators: name: Kopáček, Ondřej
name: Kovář, Jiří
name: Karas, Vladimír
name: Stuchlík, Zdeněk
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the motion of charged test particles around a Kerr black hole immersed in the asymptotically uniform magnetic field, concluding that off-equatorial stable orbits are allowed in this system. Being interested in dynamical properties of these astrophysically relevant orbits we employ rather novel approach based on the analysis of recurrences of the system to the vicinity of its previous states. We use recurrence plots (RPs) as a tool to visualize recurrences of the trajectory in the phase space. Construction of RPs is simple and straightforward regardless of the dimension of the phase space, which is a major advantage of this approach when compared to the "traditional" methods of the numerical analysis of dynamical systems (for instance the visual survey of Poincaré surfaces of section, evaluation of the Lyapunov spectra etc.). We show that RPs and their quantitative measures (obtained from recurrence quantification analysis -- RQA) are powerful tools to detect dynamical regime of motion (regular vs. chaotic) and precisely locate the transitions between these regimes.
description: 10 pages, 10 figures, published
Supernova Legacy Survey: Using Spectral Signatures To Improve Type Ia Supernovae As Distance Indicators
Creators: name: Walker, E. S.
name: Hook, I. M.
name: Sullivan, M.
name: Howell, D. A.
name: Astier, P.
name: Balland, C.
name: Basa, S.
name: Bronder, T. J.
name: Carlberg, R.
name: Conley, A.
name: Fouchez, D.
name: Guy, J.
name: Hardin, D.
name: Pain, R.
name: Perrett, K.
name: Pritchet, C.
name: Regnault, N.
name: Rich, J.
name: Aldering, G.
name: Fakhouri, H. K.
name: Kronborg, T.
name: Palanque-Delabrouille, N.
name: Perlmutter, S.
name: Ruhlmann-Kleider, V.
name: Zhang, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: GMOS optical long-slit spectroscopy at the Gemini-North telescope was used to classify targets from the Supernova Legacy Survey (SNLS) from July 2005 and May 2006 - May 2008. During this time, 95 objects were observed. Where possible the objects' redshifts (z) were measured from narrow emission or absorption features in the host galaxy spectrum, otherwise they were measured from the broader supernova features. We present spectra of 68 confirmed or probable SNe Ia from SNLS with redshifts in the range 0.17 \leq z \leq 1.02. In combination with earlier SNLS Gemini and VLT spectra, we used these new observations to measure pseudo-equivalent widths (EWs) of three spectral features - CaII H&K, SiII and MgII - in 144 objects and compared them to the EWs of low-redshift SNe Ia from a sample drawn from the literature. No signs of changes with z are seen for the CaII H&K and MgII features. Systematically lower EW SiII is seen at high redshift, but this can be explained by a change in demographics of the SNe Ia population within a two-component model combined with an observed correlation between EW SiII and photometric lightcurve stretch.
description: 49 pages including 2 online-only appendices, accepted for publication in MNRAS
Physarum galbeum Wingate 1899
Creators: name: Treviño-Zevallos, Italo
name: García-Cunchillos, Iván
name: Basanta, Diana Wrigley De
name: Lado, Carlos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum galbeum

description: 127. Physarum galbeum Wingate, in Macbride, N. Amer. Slime-moulds, ed. 1, 53 (1899)
 Specimens examined. PERU. Ancash: Recuay, Ticapampa, Catac, route AN-110, km 8, 3735 m, 9º45′46”S, 77º23′49”W, 11 May 2018, stems of Scirpus sp., Lado 26270 (MA-Fungi 97072), Lado 26275 (MA-Fungi 97077). Junin: Yauli, Morococha, Marmolejo lagoon, Ticlio mine, route PE-22, km 133, 4715 m, 11º35′51.5”S, 76º10′47.4”W, 23 Sep 2012, grasses, Lado 21759 (MA-Fungi 94525).
 Notes. The material studied matched the species description in Martin & Alexopoulos (1969); however, some collections presented a slightly orange colour at the bases of the sporothecae. Besides, the collection Lado 26270 was the only one with smooth spores.
description: Published as part of Treviño-Zevallos, Italo, García-Cunchillos, Iván, Basanta, Diana Wrigley De & Lado, Carlos, 2023, Diversity of Myxomycetes from Peru Part III: The high Andes and the altiplano, pp. 1-92 in Phytotaxa 624 (1) on page 67, DOI: 10.11646/phytotaxa.624.1.1, http://zenodo.org/record/10150721
Resonance spectrum for one-dimensional layered media
Creators: name: Iantchenko, Alexei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the "weighted" operator $P_k=-\partial_x a(x)\partial_x$ on the line with a step-like coefficient which appears when propagation of waves thorough a finite slab of a periodic medium is studied. The medium is transparent at certain resonant frequencies which are related to the complex resonance spectrum of $P_k.$ If the coefficient is periodic on a finite interval (locally periodic) with $k$ identical cells then the resonance spectrum of $P_k$ has band structure. In the present paper we study a transition to semi-infinite medium by taking the limit $k\to \infty.$ The bands of resonances in the complex lower half plane are localized below the band spectrum of the corresponding periodic problem ($k=\infty$) with $k-1$ or $k$ resonances in each band. We prove that as $k\to \infty$ the resonance spectrum converges to the real axis.
description: 22 pages, 9 figures
Formation of Early Water Oceans on Rocky Planets
Creators: name: Elkins-Tanton, Linda T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Terrestrial planets, with silicate mantles and metallic cores, are likely to obtain water and carbon compounds during accretion. Here I examine the conditions that allow early formation of a surface water ocean (simultaneous with cooling to clement surface conditions), and the timeline of degassing the planetary interior into the atmosphere. The greatest fraction of a planet's initial volatile budget is degassed into the atmosphere during the end of magma ocean solidification, leaving only a small fraction of the original volatiles to be released into the atmosphere through later volcanism. Rocky planets that accrete with water in their bulk mantle have two mechanisms for producing an early water ocean: First, if they accrete with at least 1 to 3 mass% of water in their bulk composition, liquid water may be extruded onto the planetary surface at the end of magma ocean solidification. Second, at initial water contents as low as 0.01 mass% or lower, during solidification a massive supercritical fluid and steam atmosphere is produced that collapses into a water ocean upon cooling. The low water contents required for this process indicate that rocky super-Earth exoplanets may be expected to commonly produce water oceans within tens to hundreds of millions of years of their last major accretionary impact, through collapse of their atmosphere.
description: 8 text pages with 5 figures following; Accepted at Astrophysics and Space Science
Creating a Harmonized Cultural Access & Participation Dataset for Music
Creators: name: Antal, Daniel
Publisher: name: Zenodo
Year: 2022
Subjects: subject: Music
subject: Concerts
subject: Survey data harmonization
subject: Retrospective data harmonization
subject: R (Computer program language)
subject: Digital Music Observatory
subject: https://id.loc.gov/authorities/subjects/sh85088762.html
subject: https://id.loc.gov/authorities/subjects/sh85030620.html
subject: https://id.loc.gov/authorities/subjects/sh2002004407.html

description: This is a coding tutorial to create the Harmonized Cultural Access & Participation Dataset for Music (Version 20220129) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.5917742 and to use the retrospective harmonization R package software library Daniel Antal. (2021). retroharmonize: updated program interface and documentation (0.2.4). Zenodo. https://doi.org/10.5281/zenodo.5781724
The interior solution of axially symmetric, stationary and rigidly rotating dust configurations
Creators: name: Gürlebeck, Norman
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is shown that the interior solution of axially symmetric, stationary and rigidly rotating dust configurations is completely determined by the mass density along the axis of rotation. The particularly interesting case of a mass density, which is cylindrical symmetric in the interior of the dust configuration, is presented. Among other things, this proves the non-existence of homogeneous dust configurations.
description: minor corrections to the published version, 10 pages
Hidden dimer order in the quantum compass model
Creators: name: Brzezicki, Wojciech
name: Oleś, Andrzej M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce an exact spin transformation that maps frustrated Z_{i,j}Z_{i,j+1} and X_{i,j}X_{i+1,j} spin interactions along the rows and columns of the quantum compass model (QCM) on an LxL square lattice to (L-1)x(L-1) quantum spin models with 2(L-1) classical spins. Using the symmetry properties we unravel the hidden dimer order in the QCM, with equal two-dimer correlations and in the ground state, which is independent of the actual interactions. This order coexists with Ising-type spin correlations which decay with distance.
description: 4 pages, 4 figures
Corresponding constant mean curvature surfaces in hyperbolic and Euclidean 3-spaces
Creators: name: Rossman, Wayne
name: Toda, Magdalena
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10, 58E20

description: We make observations about constant mean curvature surfaces in Euclidean 3-space and their dual surfaces, and the resulting pairs of surfaces in hyperbolic 3-space under the Lawson correspondence.
Lattice QCD at the physical point: Simulation and analysis details
Creators: name: Durr, S.
name: Fodor, Z.
name: Hoelbling, C.
name: Katz, S. D.
name: Krieg, S.
name: Kurth, T.
name: Lellouch, L.
name: Lippert, T.
name: Szabo, K. K.
name: Vulvert, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give details of our precise determination of the light quark masses m_{ud}=(m_u+m_d)/2 and m_s in 2+1 flavor QCD, with simulated pion masses down to 120 MeV, at five lattice spacings, and in large volumes. The details concern the action and algorithm employed, the HMC force with HEX smeared clover fermions, the choice of the scale setting procedure and of the input masses. After an overview of the simulation parameters, extensive checks of algorithmic stability, autocorrelation and (practical) ergodicity are reported. To corroborate the good scaling properties of our action, explicit tests of the scaling of hadron masses in N_f=3 QCD are carried out. Details of how we control finite volume effects through dedicated finite volume scaling runs are reported. To check consistency with SU(2) Chiral Perturbation Theory the behavior of M_π^2/m_{ud} and F_πas a function of m_{ud} is investigated. Details of how we use the RI/MOM procedure with a separate continuum limit of the running of the scalar density R_S(μ,μ') are given. This procedure is shown to reproduce the known value of r_0m_s in quenched QCD. Input from dispersion theory is used to split our value of m_{ud} into separate values of m_u and m_d. Finally, our procedure to quantify both systematic and statistical uncertainties is discussed.
description: 45 pages
Physarum globuliferum Pers., Syn.
Creators: name: Treviño-Zevallos, Italo
name: García-Cunchillos, Iván
name: Basanta, Diana Wrigley De
name: Lado, Carlos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum globuliferum

description: 128. Physarum cf. globuliferum (Bull.) Pers., Syn. meth. fung. 1: 175 (1801)
 Specimen examined. PERU. Ancash: Asunción, Chacas, Jambón, route AN-107, km 84, 3077 m, 9º09′13”S, 77º22′59”W, 10 May 2018, leaves of Alnus acuminata, Lado 26203 (MA-Fungi 97006).
 Notes. This specimen present the distinctive features of the species, i.e., elongated calcareous stalk, short conical columella, and dense capillitium. Uncertainty on the specific determination arises from the sparsely calcified sporothecae in the collections and the spores lacking groups of warts as ornamentation, as described in Poulain et al. (2011).
description: Published as part of Treviño-Zevallos, Italo, García-Cunchillos, Iván, Basanta, Diana Wrigley De & Lado, Carlos, 2023, Diversity of Myxomycetes from Peru Part III: The high Andes and the altiplano, pp. 1-92 in Phytotaxa 624 (1) on page 67, DOI: 10.11646/phytotaxa.624.1.1, http://zenodo.org/record/10150721
Chandra Detection of SN 2010da Four Months After Outburst: Evidence for a Supergiant X-ray Binary in NGC 300
Creators: name: Binder, B.
name: Williams, B. F.
name: Kong, A. K. H.
name: Gaetz, T. J.
name: Plucinsky, P. P.
name: Dalcanton, J. J.
name: Weisz, D. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of a 63 ks {\it Chandra} observation of the "supernova impostor" SN 2010da four months after it was first observed on 25 May 2010. We detect an X-ray source at $\sim7σ$ confidence coincident with the optical location of the SN 2010da outburst. Our imaging analysis has revealed a hard central point source, surrounded by soft diffuse emission extending as far as $\sim$8\asn north of the central source. The diffuse emission has a hardness ratio, 0.35-2 keV luminosity ($\sim6\times10^{35}$ erg s$^{-1}$), and size ($\sim20$ pc) consistent with that of a supernova remnant, although the low number of counts prohibits detailed spectral modeling. Our best-fit spectral model for the hard central source is a black body ($kT = 1.79^{+0.66}_{-0.43}$ keV) with no evidence for intrinsic absorption beyond the Galactic column. We estimate the 0.3-10 keV luminosity to be 1.7$^{+0.2}_{-0.5}\times10^{37}$ erg s$^{-1}$, a factor of $\sim$25 decrease since the initial outburst four months previously. The high X-ray luminosity and slow fading rate is not consistent with this object being a single massive star undergoing an outburst; instead, we favor the scenario where the massive star powering the SN 2010da optical transient is part of a wind-fed supergiant X-ray binary system with a compact companion powering the observed X-ray emission.
description: 6 pages, 3 figures. Submitted to ApJL
Phronesis, deconstruction, and democratic theory : a hybrid interpretive approach to democratic systems
Creators: name: Ouellette, Jordan Eric Pierre
Publisher: name: University of British Columbia
Year: 2018

description: Although democratic theorists have been searching deeper into context and shared meaning, which shape and validate certain practices as more or less democratic answers to problems in democratic political systems, there has been little serious interest among them to consider more interpretive and practice-centered strategies for research. The main purpose of this paper is to combine two such strategies, Bent Flyvbjerg’s phronetic social research and Jacques Derrida’s deconstruction, into a hybrid interpretive approach to democratic systems. First, I trace how contemporary democratic theory up to Mark Warren’s problem-based approach has moved closer and closer to adopting four common and crucial features of both phronetic and deconstructive research. Next, and in light of this methodological overlapping, I argue that the latter two research strategies are indispensable to the study of democratic systems. Here I discuss two general areas in which such a hybrid interpretive approach would be most effective: in understanding how to do what Warren calls “functional sorting” for the sake of democratizing political systems; and in understanding how social movements “function” in democratic systems today. The last section deals with some bigger concerns regarding my serious engagement with Derrida. I argue against what has long been the conventional view that distances Derridean deconstruction from democratic theory by hinting at the democratic project (if not method or theory) that Derrida was developing, especially in his later years, and the growing recent scholarship around this overlooked development. Moreover, I reconsider Flyvbjerg’s own rejection of Derrida and demonstrate how phronetic and deconstructive ways of doing research can and should, in fact, complement each other. The conclusion reiterates the promise of this (or any other) hybrid interpretive approach for the democratic theorist today.
Minimal clones with many majority operations
Creators: name: Behrisch, Mike
name: Waldhauser, Tamás
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 08A40

description: We present two minimal clones containing 26 and 78 majority operations respectively, more than any other previously known example.
description: 11 pages
Probing general relativistic effects during AGN X-ray eclipses
Creators: name: Risaliti, G.
name: Nardini, E.
name: Elvis, M.
name: Brenneman, L.
name: Salvati, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Long X-ray observations of bright Active Galactic Nuclei show that X-ray eclipses, with durations from a few hours to a few days, are rather common. This opens up a new window of opportunity in the search for signatures of relativistic effects in AGNs: an obscuring cloud covers/uncovers different parts of the accretion disc at different times, allowing a direct check of the expected pattern of disc emission. In particular, the combination of gravitational redshift and relativistic Doppler boosting should imply strong differences between the receding and approaching parts of an inclined thin disc. At present, these effects may be already detectable with a "lucky" XMM-Newton or Suzaku observation of a complete eclipse by a Compton-thick cloud (a rare, but not impossible-to-see event). In the future, higher sensitivity observatories will be able to perform these tests easily on tens of AGNs. This will provide a powerful and direct way to test extreme gravity, and to probe the structure of AGNs in the close vicinity of the central black holes.
description: 7 pages, 3 figures. Accepted for publication in MNRAS
Time-dependent current density functional theory on a lattice
Creators: name: Tokatly, I. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A rigorous formulation of time-dependent current density functional theory (TDCDFT) on a lattice is presented. The density-to-potential mapping and the ${\cal V}$-representability problems are reduced to a solution of a certain nonlinear lattice Schrödinger equation, to which the standard existence and uniqueness results for nonliner differential equations are applicable. For two versions of the lattice TDCDFT we prove that any continuous in time current density is locally ${\cal V}$-representable (both interacting and noninteracting), provided in the initial state the local kinetic energy is nonzero everywhere. In most cases of physical interest the ${\cal V}$-representability should also hold globally in time. These results put the application of TDCDFT to any lattice model on a firm ground, and open a way for studying exact properties of exchange correlation potentials.
description: revtex4, 9 pages
Arboreal Bound Entanglement
Creators: name: Kay, Alastair
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we discuss the entanglement properties of graph-diagonal states, with particular emphasis on calculating the threshold for the transition between the presence and absence of entanglement (i.e. the separability point). Special consideration is made of the thermal states of trees, including the linear cluster state. We characterise the type of entanglement present, and describe the optimal entanglement witnesses and their implementation on a quantum computer, up to an additive approximation. In the case of general graphs, we invoke a relation with the partition function of the classical Ising model, thereby intimating a connection to computational complexity theoretic tasks. Finally, we show that the entanglement is robust to some classes of local perturbations.
description: 9 pages + appendices, 3 figures
title: Надежность механических систем
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: Представленный практикум является дополнением к учебнику О. В. Леоновой «Надежность механических систем». В нем рассмотрены основные вопросы получения расчетных оценок надежности деталей и узлов на примере подъемно-транспортных машин. Каждое практическое задание сопровождается теоретическими сведениями и решением примера по изучаемому вопросу. Издание содержит также приложения, необходимые для решения задач. Подготовлен с учетом требований Федерального государственного образовательного стандарта высшего образования. Практикум предназначен для студентов, обучающихся по укрупненной группе специальностей и направлений подготовки 23.00.00 «Техника и технологии наземного транспорта», изучающих дисциплину «Надежность механических систем», направлению подготовки 26.03.03 «Водные пути, порты и гидротехнические сооружения» (профиль «Проектирование портов и терминалов»), изучающих дисциплину «Основы риск ориентированных технологий в проектировании портов и транспортных терминалов» и направлению подготовки 20.03.01 «Техносферная безопасность (профиль «Безопасность жизнедеятельности в техносфере»), изучающих дисциплину «Надежность технических систем и техногенный риск». Издание может быть использовано инженерно-техническими работниками предприятий, проектирующими и эксплуатирующими подъемно-транспортную технику.
DEP Bulletin: Volume 42 Issue 2
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2018

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Multiple Quenching Solutions of a Fourth Order Parabolic PDE with a singular nonlinearity modelling a MEMS Capacitor
Creators: name: Lindsay, Alan
name: Lega, Joceline
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Finite time singularity formation in a fourth order nonlinear parabolic partial differential equation (PDE) is analyzed. The PDE is a variant of a ubiquitous model found in the field of Micro-Electro Mechanical Systems (MEMS) and is studied on a one-dimensional (1D) strip and the unit disc. The solution itself remains continuous at the point of singularity while its higher derivatives diverge, a phenomenon known as quenching. For certain parameter regimes it is shown numerically that the singularity will form at multiple isolated points in the 1D strip case and along a ring of points in the radially symmetric 2D case. The location of these touchdown points is accurately predicted by means of asymptotic expansions. The solution itself is shown to converge to a stable self-similar profile at the singularity point. Analytical calculations are verified by use of adaptive numerical methods which take advantage of symmetries exhibited by the underlying PDE to accurately resolve solutions very close to the singularity.
Low Threshold Parametric Decay Back Scattering Instability in Tokamak ECRH Experiments
Creators: name: Gusakov, E. Z.
name: Popov, A. Yu.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The experimental conditions leading to substantial reduction of backscattering decay instability threshold in ECRH experiments in toroidal devices are analyzed. It is shown that drastic decrease of threshold is provided by non monotonic behavior of plasma density in the vicinity of magnetic island and poloidal magnetic field inhomogeneity making possible localization of ion Bernstein decay waves. The corresponding ion Bernstein wave gain and the parametric decay instability pump power threshold is calculated.
description: 7 pages, 4 figures
Particle Showers in a Highly Granular Hadron Calorimeter
Creators: name: Simon, Frank
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The CALICE collaboration has constructed highly granular electromagnetic and hadronic calorimeter prototypes to evaluate technologies for the use in detector systems at a future Linear Collider. The hadron calorimeter uses small scintillator cells individually read out with silicon photomultipliers. The system with 7608 channels has been successfully operated in beam tests at DESY, CERN and Fermilab since 2006, and represents the first large scale tests of these devices in high energy physics experiments. The unprecedented granularity of the detector provides detailed information of the properties of hadronic showers, which helps to constrain hadronic shower models through comparisons with model calculations. We will discuss results on longitudinal and lateral shower profiles compared to a variety of different shower models, and present studies of the energy reconstruction of hadronic showers using software compensation techniques.
description: 6 pages, 5 figures, to appear in the proceedings of the XIV International Conference on Calorimetry in High Energy Physics (CALOR 2010), Beijing, China, May 2010
On associative spectra of operations
Creators: name: Liebscher, Sebastian
name: Waldhauser, Tamás
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 08B05, 08A62, 08B15

description: The distance of an operation from being associative can be "measured" by its associative spectrum, an appropriate sequence of positive integers. Associative spectra were introduced in a publication by B. Csákány and T. Waldhauser in 2000 for binary operations (see arXiv:1102.2124). We generalize this concept to p-ary operations, interpret associative spectra in terms of equational theories, and use this interpretation to find a characterization of fine spectra, to construct polynomial associative spectra, and to show that there are continuously many different spectra. Furthermore, an equivalent representation of bracketings is studied.
description: 16 pages
Cyclic fatigue of ProTaper Gold in single and double curvature canals
Creators: name: Algahtani, Fahda N
Publisher: name: University of British Columbia
Year: 2018

description: Objectives: This study aimed to evaluate and compare the fatigue resistance of ProTaper Gold (PG) and ProTaper Universal (PU) in artificial single and double curvature canals in 5% sodium hypochlorite (NaOCl) at body temperature. Methods: PG and PU files (size F1) were subjected to fatigue tests inside two different custommade ceramic artificial canals. The first one was a single curvature canal (group 1: 60° curvature, 5 mm radius) and the second was a double curvature canal (group 2: first [coronal] curve of 60° curvature and 5-mm radius and the second one [apical] of 30° curvature and 2 mm radius). The artificial canals were milled in an InCoris ZI zirconium oxide disc (Dentsply Sirona, Bensheim, Germany) using the inLab MC X5 Digital CAD/CAM System (Dentsply Sirona). The first 19 mm of each file tip was introduced into the artificial canal which was immersed in either distilled water or 5% NaOCl at body temperature (37oC). The total number of cycles to failure (NCF) was recorded, and the length of the detached fragments was measured. Data were analyzed using t-test and multiple linear regression analyses. Results: The fatigue performance of PG is better than that of PU (P<0.001) in all tested groups. The NCF of ProTaper files was significantly influenced by the type of file (β=0.854; P<0.001), canal curvature (β=0.147; P=0.003), and the type of medium solutions used (β=0.100; P =0.044). The length of the broken instrument of PU was longer than PG files. Conclusions: The fatigue performance of PG is better than that of PU. The double curvature canal represents a challenge for ProTaper files and the presence of the 5% NaOCl irrigation solution adversely affects the fatigue performance.
A comparative study of the neutrino-nucleon cross section at ultra high energies
Creators: name: Goncalves, V. P.
name: Hepp, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The high energy neutrino cross section is a crucial ingredient in the calculation of the event rate in high energy neutrino telescopes. Currently there are several approaches which predict different behaviours for its magnitude for ultrahigh energies. In this paper we present a comparison between the predictions based on linear DGLAP dynamics, non-linear QCD and in the imposition of a Froissart-like behaviour at high energies. In particular, we update the predictions based on the Color Glass Condensate, presenting for the first time the results for $σ_{νN}$ using the solution of the running coupling Balitsky-Kovchegov equation. Our results demonstrate that the current theoretical uncertainty for the neutrino-nucleon cross section reaches a factor three for neutrinos energies around $10^{11}$ GeV and increases to a factor five for $10^{13}$ GeV.
description: 6 pages, 3 figures
A simple Monte Carlo model for crowd dynamics
Creators: name: Piazza, Francesco
Publisher: name: arXiv
Year: 2010
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper we introduce a simple Monte Carlo method for simulating the dynamics of a crowd. Within our model a collection of hard-disk agents is subjected to a series of two-stage steps, implying (i) the displacement of one specific agent followed by (ii) a rearrangement of the rest of the group through a Monte Carlo dynamics. The rules for the combined steps are determined by the specific setting of the granular flow, so that our scheme should be easily adapted to describe crowd dynamics issues of many sorts, from stampedes in panic scenarios to organized flow around obstacles or through bottlenecks. We validate our scheme by computing the serving times statistics of a group of agents crowding to be served around a desk. In the case of a size homogeneous crowd, we recover intuitive results prompted by physical sense. However, as a further illustration of our theoretical framework, we show that heterogeneous systems display a less obvious behavior, as smaller agents feature shorter serving times. Finally, we analyze our results in the light of known properties of non-equilibrium hard-disk fluids and discuss general implications of our model.
description: to be published in Physical Review E
Tuning laser-induced bandgaps in graphene
Creators: name: Calvo, Hernan L.
name: Pastawski, Horacio M.
name: Roche, Stephan
name: Torres, Luis E. F. Foa
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Could a laser field lead to the much sought-after tunable bandgaps in graphene? By using Floquet theory combined with Green's functions techniques, we predict that a laser field in the mid-infrared range can produce observable bandgaps in the electronic structure of graphene. Furthermore, we show how they can be tuned by using the laser polarization. Our results could serve as a guidance to design opto-electronic nano-devices.
description: 4 pages, 3 figures, to appear in Applied Physics Letters
The targum (1963:Nov. 01 - 1963:Nov. 26)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1963

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Decomposition of spectral density in individual eigenvalue contributions
Creators: name: Bohigas, O.
name: Pato, M. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The eigenvalue densities of two random matrix ensembles, the Wigner Gaussian matrices and the Wishart covariant matrices, are decomposed in the contributions of each individual eigenvalue distribution. It is shown that the fluctuations of all eigenvalues, for medium matrix sizes, are described with a good precision by nearly normal distributions.
description: 23 pages, 14 figures
Physarum gravidum Morgan, J. Cincinnati Soc. Nat. Hist.
Creators: name: Treviño-Zevallos, Italo
name: García-Cunchillos, Iván
name: Basanta, Diana Wrigley De
name: Lado, Carlos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum gravidum

description: 129. Physarum cf. gravidum Morgan, J. Cincinnati Soc. Nat. Hist. 19(1): 24 (1896)
 Specimens examined. PERU. Cajamarca: Cajamarca, route PE-08, km 161, Abra Gavilán, 3187 m, 7º14′53.4”S, 78º28′13.5”W, 15 Apr 2013, twigs, Lado 22591 (MA-Fungi 94933), leaves of Eucalyptus sp., Lado 22595 (MA-Fungi 94936).
 Notes. The Peruvian material matched the description of the species in Cainelli et al. (2020) yet differed by the pale band on the spores and the yellowish stalk, brown towards the apex, as opposed to spores of uniform colour and stalk of orange-brown to reddish brown described in the Ph. gravidum. The specimen may resemble Ph. pusillum, but spore ornamentation in the latter consists of prominent groups of warts.
description: Published as part of Treviño-Zevallos, Italo, García-Cunchillos, Iván, Basanta, Diana Wrigley De & Lado, Carlos, 2023, Diversity of Myxomycetes from Peru Part III: The high Andes and the altiplano, pp. 1-92 in Phytotaxa 624 (1) on page 67, DOI: 10.11646/phytotaxa.624.1.1, http://zenodo.org/record/10150721