cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Selection Functions in Astronomical Data Modeling, with the Space Density of White Dwarfs as Worked Example
Creators: name: Rix, Hans-Walter
name: Hogg, David W.
name: Boubert, Douglas
name: Brown, Anthony G. A.
name: Casey, Andrew
name: Drimmel, Ronald
name: Everall, Andrew
name: Fouesneau, Morgan
name: Price-Whelan, Adrian M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Statistical studies of astronomical data sets, in particular of cataloged properties for discrete objects, are central to astrophysics. One cannot model those objects' population properties or incidences without a quantitative understanding of the conditions under which these objects ended up in a catalog or sample, the sample's selection function. As systematic and didactic introductions to this topic are scarce in the astrophysical literature, we aim to provide one, addressing generically the following questions: What is a selection function? What arguments $\vec{q}$ should a selection function depend on? Over what domain must a selection function be defined? What approximations and simplifications can be made? And, how is a selection function used in `modelling'? We argue that volume-complete samples, with the volume drastically curtailed by the faintest objects, reflect a highly sub-optimal selection function that needlessly reduces the number of bright and usually rare objects in the sample. We illustrate these points by a worked example, deriving the space density of white dwarfs (WD) in the Galactic neighbourhood as a function of their luminosity and Gaia color, $Φ_0(M_G,B-R)$ in [mag$^{-2}$pc$^{-3}$]. We construct a sample of $10^5$ presumed WDs through straightforward selection cuts on the Gaia EDR3 catalog, in magnitude, color, parallax, and astrometric fidelity $\vec{q}=(m_G,B-R,\varpi,p_{af})$. We then combine a simple model for $Φ_0$ with the effective survey volume derived from this selection function $S_C(\vec{q})$ to derive a detailed and robust estimate of $Φ_0(M_G,B-R)$. This resulting white dwarf luminosity-color function $Φ_0(M_G,B-R)$ differs dramatically from the initial number density distribution in the luminosity-color plane: by orders of magnitude in density and by four magnitudes in density peak location.
Generation linewidth of an auto-oscillator with a nonlinear frequency shift: Spin-torque nano-oscillator
Creators: name: Kim, Joo-Von
name: Tiberkevich, Vasil
name: Slavin, Andrei N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is shown that the generation linewidth of an auto-oscillator with a nonlinear frequency shift (i.e. an auto-oscillator in which frequency depends on the oscillation amplitude) is substantially larger than the linewidth of a conventional quasi-linear auto-oscillator due to the renormalization of the phase noise caused by the nonlinearity of the oscillation frequency. The developed theory, when applied to a spin-torque nano-contact auto-oscillator, predicts a minimum of the generation linewidth when the nano-contact is magnetized at a critical angle to its plane, corresponding to the minimum nonlinear frequency shift, in good agreement with recent experiments.
description: 4 pages, 2 figures
Earl Hines and "Rosetta"
Creators: name: Taylor, Jeffrey
Publisher: name: Current Musicology
Year: 2001

description: One of the proudest moments of Earl "Fatha" Hines's career took place in 1976, when he was invited to perform at a White House dinner in honor of the President of France. Mter an evening chatting with Betty Ford and Clint Eastwood, Hines sat down at the piano in the East Room and launched into "Rosetta."
description: Current Musicology, No 71-73 (2002): Current Musicology
Thermal entanglement of spins in mean-field clusters
Creators: name: Asoudeh, M.
name: Karimipour, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We determine thermal entanglement in mean field clusters of $N$ spin one-half particles interacting via the anisotropic Heisenberg interaction, with and without external magnetic field. For the $xxx$ cluster in the absence of magnetic field we prove that only the N=2 ferromagnetic cluster shows entanglement. An external magnetic field $B$ can only entangle $xxx$ anti-ferromagnetic clusters in certain regions of the $B-T$ plane. On the other hand, the $xxz$ clusters of size $N>2$ are entangled only when the interaction is ferromagnetic. Detailed dependence of the entanglement on various parameters is investigated in each case.
description: 16 pages, 11 figures
Betacismo e altre alternanze in dialetti italiani meridionali. Il rafforzamento è l'opposto della lenizione?
Creators: name: Bafile, Laura
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: lenizione; rafforzamento; sonorità; struttura fonologica; percezione linguistica

description: Lenition and strengthening are often considered to be the opposite results of a same process affecting, in opposite directions, segmental strength. The notion of strength, however, far from being a theoretical entity, is commonly used to describe properties and processes of different nature. Furthermore, on closer examination, lenition and fortition appear to be different phenomena, frequent, “spontaneous”, truly phonological the former, rare and often morphologised the latter. With reference to some word-initial consonant alternations of southern Italian dialects, the paper discusses the nature of lenition and strengthening, proposing that, when not due to the spreading of a feature, strengthening is determined by structural properties of the phonological domain rather than by changes in the melodic content of segments. In a wider perspective of phonology as a component of language, these phenomena of consonant strengthening can be considered part of a strategy for increasing the modulation of the carrier signal and therefore enhancing perceptibility.
description: Sezione di Lettere, IX 2 (2014)
Un poeta senza età. Note di cronografia stesicorea (e alcmanico-saffico-simonidea)
Creators: name: Ornaghi, Massimiliano
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: Stesicoro; Saffo; Simonide; Lirica greca arcaica

description: This research aims to study the chronographic data of Stesichorus, which probably does not result from a single tradition, but reflect the connection of Stesichorus to other chronographic systems: in particular those of Alcman and Simonides, to whom Stesichorus would have been associated on grounds of literary and historical classification. Not "productive" – always from the chronographic point of view – appears to have been the connection of Stesichorus to Phalaris and the battle of the Sagra river.
description: Sezione di Lettere, IX 2 (2014)
Excerpted from The Days and Nights of the Lotus Trio
Creators: name: Ives, Michael
Publisher: name: Current Musicology
Year: 2013

description: The following texts are drawn from a series of vignettes concerning a hapless, over–educated trio of jazz musicians who ply their trade in an unnamed city during an historical period best described as the “eternal jazz present.” In every sense lotus eaters, this band of ineffectual brothers, however competent, even occasionally brilliant as musicians, are forever hampered by their own fin–de–siècle fetishisms. They are proof of the obstacles an over–developed connoisseurship places in the way of the pragmatic business of getting gigs. A fondness for cannabis and an addiction to refined banter jeopardize nearly all their ambitions, save their often acidulous judgments of their peers. The prose itself—however informed by the absurd sophistications of Ronald Firbank (whose dialogic exchanges call to mind the snare drum accents of Roy Haynes) or the underground classic, A Nest of Ninnies (Ashbery–Schuyler)—means to serve as something like a parodic homage to that dandy of jazz writing, Whitney Balliett.
description: Current Musicology, No 95 (2013): Current Musicology
Gli ossimori del riso in Baudelaire
Creators: name: Martinuzzi, Paola
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: ossimoro; oxymoron; morte; death; riso; laugh; poesia; poetry

description: Laughter, in Baudelaire’s poetry, is a symptom of evil: it often arises from the abysses of self-consciousness, from contact with material and spiritual death, from the vision of evil and chaos. Laughing, like art itself, disguises spiritual emptiness while it doscovers it, and poetry redeems the misery of man. So, the comic gesture of British clown excites an “absolute”, metaphysical laugh.
description: Sezione di Lettere, IX 2 (2014)
Nonsense and Unmusic
Creators: name: Albright, Daniel
Publisher: name: Current Musicology
Year: 2013

description: Without nonsense there is no sense. Without sense there is no nonsense. Without sense there is no sense. Without nonce there is no once. Without out end there is no begin in. Without redundancy the waves would surge in one direction only.
description: Current Musicology, No 95 (2013): Current Musicology
Interaction of Ultracold Antihydrogen with a Conducting Wall
Creators: name: Voronin, A. Yu.
name: Froelich, P.
name: Zygelman, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We investigate the interaction of ultracold antihydrogen with a conducting surface. Our discussion focuses on the physical regime where the phenomenon of quantum reflection manifests. We calculate the reflection probability as function of incident atom energy. We find that, for ground state $\bar{H}$ atoms (with $T< 10^{-5}$ K), the probability of reflection is $R \simeq 1-k b$, where $k$ is the momentum of the atom and $b = 2174.0$ a.u. is a constant determined solely by the van der Waals-Casimir tail of the atom-wall interaction. We show that quantum reflection, which suppresses the direct contact of ultra-cold atoms with the surface, allows for the possibility of confinement and storage of cold antihydrogen atoms. We calculate the life-time of confinement as a function of antihydrogen energy. We develop a theory of $\bar{H}$ in a wave-guide and propose its application to fundamental measurements. In particular, for measurement of retardation corrections in the long-range component of the antiatom - wall potential. We demonstrate, for $\bar{H}$ falling in the gravitational field of Earth onto a conducting surface, the existence of quantized $\bar{H}$ states. We calculate that the lifetime of ultracold $\bar{H}$ in its lowest gravitational state and obtain $τ=(Mg b/2\hbar)^{-1}\simeq 0.1$ s, where $Mg$ is a gravitational force acting on the antiatom. We propose that measurement of this lifetime may provide a new test for the gravitational properties of antimatter.
Laura Lulli, Narrare in distici. L’elegia greca arcaica e classica di argomento storico-mitico, «Quaderni dei Seminari Romani di Cultura Greca» 13, Roma, Edizioni Quasar, 2011, pp. X-122, ISBN 9788871404486
Creators: name: Colesanti, Giulio
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: Elegia greca arcaica; Poesia greca

description: Sezione di Lettere, IX 2 (2014)
StelNet: Hierarchical Neural Network for Automatic Inference in Stellar Characterization
Creators: name: Garraffo, Cecilia
name: Protopapas, Pavlos
name: Drake, Jeremy J.
name: Becker, Ignacio
name: Cargile, Phillip
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Characterizing the fundamental parameters of stars from observations is crucial for studying the stars themselves, their planets, and the galaxy as a whole. Stellar evolution theory predicting the properties of stars as a function of stellar age and mass enables translating observables into physical stellar parameters by fitting the observed data to synthetic isochrones. However, the complexity of overlapping evolutionary tracks often makes this task numerically challenging, and with a precision that can be highly variable, depending on the area of the parameter space the observation lies in. This work presents StelNet, a Deep Neural Network trained on stellar evolutionary tracks that quickly and accurately predicts mass and age from absolute luminosity and effective temperature for stars with close to solar metallicity. The underlying model makes no assumption on the evolutionary stage and includes the pre-main sequence phase. We use bootstrapping and train many models to quantify the uncertainty of the model. To break the model's intrinsic degeneracy resulting from overlapping evolutionary paths, we also built a hierarchical model that retrieves realistic posterior probability distributions of the stellar mass and age. We further test and train StelNet using a sample of stars with well-determined masses and ages from the literature.
description: 17 pages, 15 figures, accepted to AJ
A procedure to compare milk persistency between treatments with linear regression
Creators: name: ANGER, Jean-Charles
Publisher: name: Zenodo
Year: 2023

description: This procedure aims to compare milk persistency on dairy cows which received different diet treatments during the declining phase of lactation (56 to 182 DIM). It calculates a covariate during a pre-treatment period from 21 to 35 DIM before the peak of lactation.
การตอบสนองต่อปุ๋ยไนโตรเจนของพริกที่ปลูกในดินเนื้อปานกลาง
Creators: name: จักรชัยวัฒน์ กาวีวงศ์
name: เมธี วรรณชัย
name: จำเนียร มีสาลี
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: ไนโตรเจน
พริก
ดินเนื้อปานกลาง
การตอบสนองต่อปุ๋ยไนโตรเจน

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 27, 4, 717-725
Hypersound damping in vitreous silica measured by picosecond acoustics
Creators: name: Devos, A.
name: Foret, M.
name: Ayrinhac, S.
name: Emery, P.
name: Rufflé, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The attenuation of longitudinal acoustic phonons up to frequencies nearing 250 GHz is measured in vitreous silica with a picosecond optical technique. Taking advantage of interferences on the probe beam, difficulties encountered in early pioneering experiments are alleviated. Sound damping at 250 GHz and room temperature is consistent with relaxation dominated by anharmonic interactions with the thermal bath, extending optical Brillouin scattering data. Our result is at variance with claims of a recent deep-UV experiment which reported a rapid damping increase beyond 100 GHz. A comprehensive picture of the frequency dependence of sound attenuation in $v$-SiO$_2$ can be proposed.
description: 4 pages, 3 figures
Xavier Riu, Jaume Pòrtulas (a cura di), Approaches to Archaic Greek Poetry, Messina, Dipartimento di Scienze dell’Antichità, 2012, pp. XIV + 298, ISBN 978-88-8268-030-5
Creators: name: Ornaghi, Massimiliano
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: Poesia greca arcaica; Greek lyric poetry

description: Sezione di Lettere, IX 2 (2014)
Hypernova Signatures in the Late Rebrightening of GRB 050525A
Creators: name: Della Valle, M.
name: Malesani, D.
name: Bloom, J. S.
name: Benetti, S.
name: Chincarini, G.
name: D'Avanzo, P.
name: Foley, R. J.
name: Covino, S.
name: Melandri, A.
name: Piranomonte, S.
name: Tagliaferri, G.
name: Stella, L.
name: Gilmozzi, R.
name: Antonelli, L. A.
name: Campana, S.
name: Chen, H. -W.
name: Filliatre, P.
name: Fiore, F.
name: Fugazza, D.
name: Gehrels, N.
name: Hurley, K.
name: Mirabel, I. F.
name: Pellizza, L. J.
name: Piro, L.
name: Prochaska, J. X.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report observations of GRB 050525A, for which a Gemini North spectrum shows its redshift to be z = 0.606. This is the third closest long GRB discovered by Swift. We observed its afterglow using the VLT, Gemini and TNG telescopes to search for an associated SN. We find that the early-time light curve is described by a broken power law with a break at t ~ 0.3 d after the burst. About 5 d after the burst, a flattening is apparent, followed by a further dimming. Both the magnitude and the shape of the light curve suggest that a supernova was emerging during the late decay of the afterglow. This supernova, dubbed SN 2005nc, had a rise time faster than SN 1998bw and a long-lasting maximum. A spectrum obtained about 20 d (rest-frame) after the GRB resembles the spectrum of SN 1998bw obtained close to maximum light.
description: 5 pages, 4 ps figures. Accepted for publication in ApJ Letters
การเปรียบเทียบผลของการออกก้าลังกายในน้าและบนบกต่อความดันโลหิตและองค์ประกอบของร่างกายในผู้ที่มีน้าหนักเกินมาตรฐานและอ้วน
Creators: name: สมฤดี หาญมานพ
name: ศศิภา บูรณพันธฤกษ์
name: กรอนงค์ ยืนยงชัยวัฒน์
name: ขจรศักดิ์ พงษ์พานิช
name: ภูวรินทร์ นามแดง
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: ออกก้าลังกายในน้้า
ออกก้าลังกายบนบก
น้้าหนักเกิน
อ้วน

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 27, 4, 726-737
Ugo Fantasia, La guerra del Peloponneso, Roma, Carocci, 2012, pp. 223 ISBN 978-88-430-6638-4
Creators: name: Parmeggiani, Giovanni
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: Tucidide; Storia Greca - Età classica

description: Sezione di Lettere, IX 2 (2014)
"Come on in North Side, you're just in time": Musical-Verbal Performance and the Negotiation of Ethnically Segregated Social Space
Creators: name: Scruggs, T. M.
Publisher: name: Current Musicology
Year: 2001

description: Every Monday night in the 1970s and well into the 1980s jazz tenor sax-ophonist Von Freeman led his quartet, and a later open jam session, at the Enterprise Lounge on Chicago's Mrican American South Side.
description: Current Musicology, No 71-73 (2002): Current Musicology
An analysis of variables in child protection apprehensions and judicial dispositions in British Columbia child welfare practice
Creators: name: Campbell, James Floyd
Publisher: name: University of British Columbia
Year: 2010

description: This study analyzes variables in the child protection apprehensions and judicial dispositions within the British Columbia child welfare system. The study was based on a 10% sample of children apprehended into care of the B.C. Superintendent of Family and Child Service in 1989. It includes the following specific objectives: 1) To review reasons children were being apprehended into care and develop a socio-economic and demographic profile of these children and their families. 2) To determine percentages of congruence between social workers' recommendations to the court and judicial dispositions at the first two stages of child protection court proceedings. 3) To identify factors which impact case outcomes and account for discrepancies between social workers' recommendations and judicial dispositions. 4. To explore the policy and practice implications of the research findings. The profile of the apprehended children illustrated that a majority came into care for reasons characteristic of neglect by omission rather than abuse by commission. Reasons for admission to care appeared to be related to the age and sex of the child, as well as family constellation. In analyzing the relationships between the reasons for the child's apprehension in comparison to the parents' social, economic and educational status, it was demonstrated that children were predominantly apprehended from households headed by parents with limited education, low income and/or semi-skilled employment. Single female parents, parents on income assistance, aboriginal families, younger families, living in multiple dwellings, were statistically over-represented when compared to the general population. The majority of court hearings proceeded within the time-frames set out in B.C. child protection legislation. The social workers' recommendations to the court were statistically associated with the judicial dispositions at the initial presentation to the court, and only slightly less so at the protection hearing. Whether the parents attended court and had legal counsel played a significant role in influencing the court's disposition, particularly at the protection hearing. Judicial support for the social workers' recommendations varied depending on the order sought, the highest percentage of agreement being when social workers recommended the child be in parental care, and the lowest when recommending the child become a permanent ward. The thesis draws on these research findings, concluding with research and policy recommendations to facilitate child protection practice in British Columbia.
In margine a un nuovo studio sull'Alessandro di Euripide
Creators: name: Magnani, Massimo
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: Euripide; Tragedia greca

description: marginal observations about a new study of the Euripides’ Alexandros.
description: Sezione di Lettere, IX 2 (2014)
Scale-invariance of human EEG signals in sleep
Creators: name: Cai, Shi-Min
name: Jiang, Zhao-Hui
name: Zhou, Tao
name: Zhou, Pei-Ling
name: Yang, Hui-Jie
name: Wang, Bing-Hong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We investigate the dynamical properties of electroencephalogram (EEG) signals of human in sleep. By using a modified random walk method, We demonstrate that the scale-invariance is embedded in EEG signals after a detrending procedure. Further more, we study the dynamical evolution of probability density function (PDF) of the detrended EEG signals by nonextensive statistical modeling. It displays scale-independent property, which is markedly different from the turbulent-like scale-dependent PDF evolution.
description: 4 pages and 6 figures
The M-dwarf Ultraviolet Spectroscopic Sample I. Determining Stellar Parameters for Field Stars
Creators: name: Pineda, J. Sebastian
name: Youngblood, Allison
name: France, Kevin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Accurate stellar properties are essential for precise stellar astrophysics and exoplanetary science. In the M-dwarf regime, much effort has gone into defining empirical relations that can use readily accessible observables to assess physical stellar properties. Often, these relations for the quantity of interest are cast as a non-linear function of available data; however, in Bayesian modeling the reverse is needed. In this article, we introduce a new Bayesian framework to self-consistently and simultaneously apply multiple empirical calibrations to fully characterize the mass, luminosity, radius, and effective temperature of a field age M-dwarf. This framework includes a new M-dwarf mass-radius relation with a scatter of 3.1% at fixed mass. We further introduce the M-dwarf Ultraviolet Spectroscopic Sample (MUSS), and apply our methodology to provide consistent stellar parameters for these nearby low-mass stars, selected as having available spectroscopic data in the ultraviolet. These targets are of interest largely as either exoplanet hosts or benchmarks in multi-wavelength stellar activity. We use the field MUSS stars to define a low-mass main sequence in the solar neighborhood through Gaussian Process (GP) regression. These results enable us to empirically measure a feature in the GP derivative at $\mathcal{M}_{b} = 0.337 \pm ^{0.013}_{0.026}$ $M_{\odot}$ that indicates where the M-dwarf Ultraviolet Spectroscopic Sample transitions from fully to partly convective interiors.
description: Accepted by ApJ
Eronda e la Musa giambica ipponattea: per l'interpretazione del Mimiambo 1 (con un Excursus sulle Siracusane di Teocrito)
Creators: name: Piacenza, Nicola
Publisher: name: Sezione di Lettere
Year: 2015
Subjects: Iambe; Ipponatte; Siracusane; giambo; coliambo

description: Herondas’ first mimiamb is read through four basic elements: the references to the goddess Demeter and the old woman Iambe, the allusions to Hipponax, the Homeric model and the contacts with the other Hellenistic poets, in particular Theocritus (in this context, a new interpretation of Idyll 15, 40-1 is given) and Callimachus. All these components lead us to a metapoetic interpretation of the mimiamb, that should be rightly considered – like mimiamb 8 -  as a programmatic poem.
description: Sezione di Lettere, IX 2 (2014)
Online Cycle Detection for Models with Mode-Dependent Input and Output Dependencies
Creators: name: Park, Heejong
name: Easwaran, Arvind
name: Borde, Etienne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In the fields of co-simulation and component-based modelling, designers import models as building blocks to create a composite model that provides more complex functionalities. Modelling tools perform instantaneous cycle detection (ICD) on the composite models having feedback loops to reject the models if the loops are mathematically unsound and to improve simulation performance. In this case, the analysis relies heavily on the availability of dependency information from the imported models. However, the cycle detection problem becomes harder when the model's input to output dependencies are mode-dependent, i.e. changes for certain events generated internally or externally as inputs. The number of possible modes created by composing such models increases significantly and unknown factors such as environmental inputs make the offline (statical) ICD a difficult task. In this paper, an online ICD method is introduced to address this issue for the models used in cyber-physical systems. The method utilises an oracle as a central source of information that can answer whether the individual models can make mode transition without creating instantaneous cycles. The oracle utilises three types of data-structures created offline that are adaptively chosen during online (runtime) depending on the frequency as well as the number of models that make mode transitions. During the analysis, the models used online are stalled from running, resulting in the discrepancy with the physical system. The objective is to detect an absence of the instantaneous cycle while minimising the stall time of the model simulation that is induced from the analysis. The benchmark results show that our method is an adequate alternative to the offline analysis methods and significantly reduces the analysis time.
description: \c{opyright} 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
The XMM-Newton survey of the ELAIS-S1 field. I: Number counts, angular correlation function and X-ray spectral properties
Creators: name: Puccetti, S.
name: Fiore, F.
name: D'Elia, V.
name: Pillitteri, I.
name: Feruglio, C.
name: Grazian, A.
name: Brusa, M.
name: Ciliegi, P.
name: Comastri, A.
name: Gruppioni, C.
name: Mignoli, M.
name: Vignali, C.
name: Zamorani, G.
name: La Franca, F.
name: Sacchi, N.
name: Franceschini, A.
name: Berta, S.
name: Buttery, H.
name: Dias, J. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have surveyed with XMM-Newton the central ~0.6 deg2 region of the ELAIS-S1 field down to flux limits of ~5.5X10-16 cgs (0.5-2 keV, S band), ~2X10-15 cgs (2-10 keV, H band), and ~4X10-15 cgs (5-10 keV, HH band). We detect a total of 478 sources, 395 and 205 of which detected in the S and H bands respectively. We identified 7 clearly extended sources and estimated their redshift through X-ray spectral fits with thermal models. In four cases the redshift is consistent with z=0.4. We have computed the angular correlation function of the sources in the S and H bands, finding best fit correlation angles theta_0=5.2+/-3.8 arcsec and theta_0=12.8+/-7.8 arcsec respectively. A rough estimate of the present-day correlation length r_0 can be obtained inverting the Limber equation and assuming an appropriate redshift distribution dN/dz. The results range between 12.8 and 9.8 h-1 Mpc in the S band and between 17.9 and 13.4 h-1 Mpc in the H band, with 30-40% statistical errors, assuming either smooth redshift distributions or redshift distributions with spikes accounting for the presence of a structure at z=0.4. The relative density of the S band sources is higher near the clusters and groups at z~0.4 and extends toward East and toward South/West. This suggests that the structure is complex, with a size comparable to the full XMM-Newton field. Conversely, the highest relative source densities of the H band sources are located in the central-west region of the field.
description: To be published on A&A
Multiwavelength evidence for a new flare-mode transitional millisecond pulsar
Creators: name: Strader, Jay
name: Swihart, Samuel J.
name: Urquhart, Ryan
name: Chomiuk, Laura
name: Aydi, Elias
name: Bahramian, Arash
name: Kawash, Adam
name: Sokolovsky, Kirill V.
name: Tremou, Evangelia
name: Udalski, Andrej
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of a new low-mass X-ray binary near the center of the unassociated Fermi GeV gamma-ray source 4FGL J0540.0-7552. The source shows the persistent presence of an optical accretion disk and exhibits extreme X-ray and optical variability. It also has an X-ray spectrum well-fit by a hard power law with a Gamma = 1.8 and a high ratio of X-ray to gamma-ray flux. Together, these properties are consistent with the classification of the binary as a transitional millisecond pulsar (tMSP) in the sub-luminous disk state. Uniquely among the candidate tMSPs, 4FGL J0540.0-7552 shows consistent optical, X-ray, and gamma-ray evidence for having undergone a state change, becoming substantially brighter in the optical and X-rays and fainter in GeV gamma-rays sometime in mid-2013. In its current sub-luminous disk state, and like one other candidate tMSP in the Galactic field, 4FGL J0540.0-7552 appears to always be in an X-ray "flare mode", indicating that this could be common phenomenology for tMSPs.
description: ApJ in press
Tunneling probability for the birth of an asymptotically DeSitter universe
Creators: name: de Barros, J. Acacio
name: Silva, E. V. Corrêa
name: Monerat, G. A.
name: Oliveira-Neto, G.
name: Filho, L. G. Ferreira
name: Romildo, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present work, we quantize a closed Friedmann-Robertson-Walker model in the presence of a positive cosmological constant and radiation. It gives rise to a Wheeler-DeWitt equation for the scale factor which has the form of a Schrödinger equation for a potential with a barrier. We solve it numerically and determine the tunneling probability for the birth of a asymptotically DeSitter, inflationary universe, initially, as a function of the mean energy of the initial wave-function. Then, we verify that the tunneling probability increases with the cosmological constant, for a fixed value of the mean energy of the initial wave-function. Our treatment of the problem is more general than previous ones, based on the WKB approximation. That is the case because we take into account the fact that the scale factor ($a$) cannot be smaller than zero. It means that, one has to introduce an infinity potential wall at $a = 0$, which forces any wave-packet to be zero there. That condition introduces new results, in comparison with previous works.
description: New version with a detailed comparison between our exact solution and previous WKB solutions. We show that they agree under certain conditions. Our treatment of the problem is more general than previous ones, based on the WKB approximation. That is the case because we take into account the fact that the scale factor ($a$) cannot be smaller than zero. It means that, one has to introduce an infinity potential wall at $a = 0$, which forces any wave-packet to be zero there. That condition introduces new results, in comparison with previous works. 17 pages (in revtex) and the previous 4 figures (in eps and ps)
A Musical Education: Lee Morgan and the Philadelphia Jazz Scene of the 1950s
Creators: name: McMillan, Jeffrey S.
Publisher: name: Current Musicology
Year: 2001

description: When Michael LaVoe observed Lee Morgan, a fellow freshman at Philadelphia's Mastbaum Vocational Technical High School, playing trumpet with members of the school's dance band in the first days of school in September 1953, he could not believe his ears. Morgan, who had just turned fifteen years old the previous July, had remarkable facility on his instrument and displayed a sophisticated understanding of music for someone so young. Other members of the ensemble, some of whom al-ready had three years of musical training and performing experience in the school's vocational music program, experienced similar feelings of dis-belief when they heard the newcomer's precocious ability. Lee Morgan had successfully auditioned into Mastbaum's music program, the strongest of its kind in Philadelphia from the 1930s through the 1960s, and demon-strated a rare ability that begged the title "prodigy."
description: Current Musicology, No 71-73 (2002): Current Musicology
Musical Literacy and Jazz Musicians in the 1910s and 1920s
Creators: name: Chevan, David
Publisher: name: Current Musicology
Year: 2001

description: In 1988, I conducted a telephone interview with the African American New Orleans clarinet player Willie James Humphrey about his tenure from 1925 to 1932 in the riverboat band led by Fate Marable. During our conversation, I asked Humphrey if Marable had hired him because of his skills as a jazz musician. Although we were talking by phone I could feel the mood of the conversation change. Humphrey sounded irritated as he replied, "You had to be a musician [his emphasis], 'cause that's the only way you could get on there. You had to know how to read."
description: Current Musicology, No 71-73 (2002): Current Musicology
Five years of SGR 1900+14 observations with BeppoSAX
Creators: name: Esposito, P.
name: Mereghetti, S.
name: Tiengo, A.
name: Sidoli, L.
name: Feroci, M.
name: Woods, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a systematic analysis of all the BeppoSAX data of the soft gamma-ray repeater SGR 1900+14: these observations allowed us to study the long term properties of the source quiescent emission. In the observation carried out before the 1998 giant flare the spectrum in the 0.8-10 keV energy range was harder and there was evidence for a 20-150 keV emission, possibly associated with SGR 1900+14. This possible hard tail, if compared with the recent INTEGRAL detection of SGR 1900+14, has a harder spectrum (power-law photon index ~1.6 versus ~3) and a 20-100 keV flux ~4 times larger. In the last BeppoSAX observation (April 2002), while the source was entering the long quiescent period that lasted until 2006, the 2-10 keV flux was ~25% below the historical level. We also studied in detail the spectral evolution during the 2001 flare afterglow. This was characterized by a softening that can be interpreted in terms of a cooling blackbody-like component.
description: Accepted for publication on Astronomy and Astrophysics on August 31, 2006
Matrix metalloproteinase inhibition attenuates right ventricular dysfunction and improves responses to dobutamine during acute pulmonary thromboembolism
Creators: name: Neto‐Neves, Evandro M.; Sousa‐Santos, Ozelia; Ferraz, Karina C.; Rizzi, Elen; Ceron, Carla S.; Romano, Minna M.; Schulz, Richard; Tanus‐Santos, Jose E.
Publisher: name: University of Alberta Libraries
Year: 2013

Abstract
Gnypeta nigrella Thomson
Creators: name: Klimaszewski, Jan
name: Savard, Karine
name: Pelletier, Georges
name: Webster, Reginald
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Gnypeta
Gnypeta nigrella

description: V. Gnypeta nigrella species group The nigrella species group may be characterized by the following combination of characters: spermatheca club-shaped, capsule approximately spherical and constricted to a narrow duct connected to a narrow, tubular and sinuate stem (Figs 169, 178, 187, 188); median lobe of aedeagus with moderately large bulbus which is streamlined with tubus in dorsal view (Figs 165, 173, 182), the internal sac with two pronounced subapical sclerites (Figs 164, 165, 177, 178, 181, 182); female sternite 8 emarginated medially (Figs 171, 180, 189). Species included: G. minuta Klimaszewski and Webster, G. nigrella LeConte, G. saccharina Klimaszewski and Webster.
description: Published as part of Klimaszewski, Jan, Savard, Karine, Pelletier, Georges & Webster, Reginald, 2008, Species review of the genus Gnypeta Thomson from Canada, Alaska and Greenland (Coleoptera, Staphylinidae, Aleocharinae): systematics, bionomics and distribution, pp. 11-84 in ZooKeys 2 (2) on page 64, DOI: 10.3897/zookeys.2.4, http://zenodo.org/record/576410
Swift X-ray Observations of Classical Novae
Creators: name: Ness, J. -U.
name: Schwarz, G. J.
name: Retter, A.
name: Starrfield, S.
name: Schmitt, J. H. M. M.
name: Gehrels, N.
name: Burrows, D.
name: Osborne, J. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The new gamma-ray burst mission Swift has obtained pointed observations of several classical novae in outburst. We analyzed all the observations of classical novae from the Swift archive up to 30 June, 2006. We analyzed usable observations of 12 classical novae and found 4 non-detections, 3 weak sources and 5 strong sources. This includes detections of 2 novae exhibiting spectra resembling those of Super Soft X-ray binary Source spectra (SSS) implying ongoing nuclear burning on the white dwarf surface. With these new Swift data, we add to the growing statistics of the X-ray duration and characteristics of classical novae.
description: Accepted for ApJ; this version contains additional material: 18 pages, 16 figures
Forecasting with Deep Learning: S&P 500 index
Creators: name: Kamalov, Firuz
name: Smail, Linda
name: Gurrib, Ikhlaas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Stock price prediction has been the focus of a large amount of research but an acceptable solution has so far escaped academics. Recent advances in deep learning have motivated researchers to apply neural networks to stock prediction. In this paper, we propose a convolution-based neural network model for predicting the future value of the S&P 500 index. The proposed model is capable of predicting the next-day direction of the index based on the previous values of the index. Experiments show that our model outperforms a number of benchmarks achieving an accuracy rate of over 55%.
description: Published in: 2020 13th International Symposium on Computational Intelligence and Design (ISCID)
La législation archivistique du Québec et la gestion des archives publiques
Creators: name: Ouellette, Vincent
Publisher: name: University of British Columbia
Year: 2010

description: Cette étude présente et tente d'expliquer la législation archivistique du Québec dans le but de dégager la conception de la gestion des archives publiques que sous-tend cette législation. Nous avons défini une législation archivistique comme étant l'ensemble des dispositions légales adoptées par un gouvernement pour régir la conservation, la gestion et l'accessibilité des archives. Notre étude s'est donc principalement limitée à une analyse des dispositions de la Loi sur les archives (adoptée en décembre 1983) et des textes qui lui sont directement reliés, puisque cette loi traite de la gestion des archives publiques et privées du Québec. Avec l'intention de privilégier une approche archivistique pour mener notre analyse, nous nous sommes inspirés de la littérature portant sur la législation archivistique et sur la théorie archivistique en général. L'analyse s'est effectuée à l'aide d'un ensemble de catégories d'analyse structuré selon trois paliers d'investigation : le champ d'application de la Loi sur les archives, la gestion des archives publiques prevue par cette loi et l'administration de la loi. L'analyse a révélé que la Loi sur les archives officialise des concepts et des principes propres à susciter une gestion des archives publiques en reconnaissant aux archives une valeur administrative autant que culturelle. Toutefois, certains aspects de la Loi sur les archives atténuent quelque peu le caractére intégré de la gestion des archives publiques que suggére l'esprit de cette loi.
Supernova and GRB connection: Observations and Questions
Creators: name: Della Valle, Massimo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review the observational status of the supernova/gamma-ray burst connection. Present data suggest that SNe associated with GRBs form a heterogeneous class of objects including both bright and faint hypernovae and perhaps also `standard' Ib/c events. Evidence for association with other types of core-collapse SNe (e.g. IIn) is much weaker. After combining the local GRB rate with the local SN-Ibc rate and beaming estimates, we find the ratio GRB/SNe-Ibc in the range ~0.5-4%. In most SN/GRB associations so far discovered, the SN and GRB events appear to go off simultaneously. In some cases data do not exclude that the SN explosion may have preceded the GRB by a few days. Finally we discuss a number of novel questions started by recent cases of GRB-SN associations.
description: Invited review talk to appear in proceedings of the 16th Annual October Astrophysics Conference in Maryland, "Gamma Ray Bursts in the Swift Era", eds. S. Holt, N. Gehrels and J. Nousek; 13 pages, 5 figures, 2 tables
Outside Forces: “Autumn Leaves” in the 1960s
Creators: name: Waters, Keith
Publisher: name: Current Musicology
Year: 2001

description: Is there a problem of form in the jazz tradition? Does the reliance upon repeated 32-bar frameworks create an unavoidable formal, harmonic, and metric redundancy? How do jazz improvisers transcend or evade this cyclic regularity? These are crucial questions. Jazz players have extended privilege to the 32-bar AABA and ABAC song form (along with 12-bar blues structures) since at least the 1930s, when the 32-bar song form replaced the 16-bar sectional forms of ragtime and early jazz. Yet repeated cycles of thirty-two bars result in a hypermetric consistency on several levels: single measures group into four-measure units, which then combine into eight measure sections; the four eight-measure sections comprise the 32-bar form, which becomes repeated, normally for the duration of the composition. In the Western European tradition (with the occasional exception of the theme and variations genre and dance forms) form is typically not generated by regularly repeating structures, structures that are consistently built from measure groups of 4, 8, 16, and 32 bars. Yet this formal model, with its foursquare regularity and its repeated harmonic and metric organization, has been one of the primary vehicles for jazz improvisers and composers. Historically, jazz players have kept the structure, merely renovating it periodically through stylistic change. Thus, while stylistic development and evolution has rapidly taken place in the area of instrumental technique, harmony, and rhythm, the domain of form has remained relatively static.
description: Current Musicology, No 71-73 (2002): Current Musicology
A Picture is Worth a Thousand Words: Road Maps as Analytical Tools
Creators: name: Alegant, Brian
Publisher: name: Current Musicology
Year: 2013

description: A road map is a representation or documentation of how one hears a work unfold in time. In its simplest form, a road map can be a time line or flow chart. But it can also be an elaborate landscape of observations, correspondences, and associations, with text descriptions, symbols, staff notation, rhythms, colors, and shapes. A road map can be teleological or non–linear; literal or abstract; monochromatic or multi–colored; sparse or dense; small or large; hand–drawn or created with a music notation program such as Sibelius or Finale. I would argue that a road map—like any piece of writing—is provisional. There is no right or wrong way to create one, although some maps are definitely more compelling, thoughtful, and musical than others. The idea behind a road map is to capture the important characteristics of a work and represent them in some way that makes sense. For this reason I occasionally ask students to re–map the same work later in a semester. The results often reveal (to student and instructor alike) significant refinement in hearing and sophistication in modeling. A map can trace the history of pitches, pitch–classes, set–classes, rhythms, gestures, themes, registers, dynamics, articulations, texture and other parameters; it can highlight phrase structures, structural upbeats and downbeats, and climaxes; and it can model formal organization and energy flow, character, compositional strategies, and narrative. Road maps facilitate deeper engagement with music, foster critical listening skills, and provide a creative outlet for students, especially those who are visual learners.
description: Current Musicology, No 95 (2013): Current Musicology
How do we stay Authentic to Ourselves in practice while honoring tradition?
Creators: name: Timalsina, Staneshwar
Publisher: name: Zenodo
Year: 2025
Subjects: sarvamnaya-oral-tradition-archive
vimarsha-foundation
sarvamnaya

description: In the Sarvāmnāya tradition, practice is not about accumulating more knowledge but about deconditioning the mind—breaking free from habitual thought patterns to access deeper awareness. This path is built on three essential components:

🔹 Daily Study – Select texts that resonate both intellectually and intuitively, shaping your thought process rather than overwhelming it.
🔹 Complex Visualization – Train the mind to hold, dissolve, and reshape intricate mental images, sharpening focus and deepening perception.
🔹 Mantra & Positive Thought (Tarka) – Through repetition, mantras bring you closer to your heart, while positive reasoning cultivates a grounded and expansive state of being.

This is not passive learning—it's an active transformation of how we see, think, and experience reality.

Join the inquiry. Engage in the practice. Transform your mind.

#Vimarsha #DeprogrammingTheMind #TantricWisdom #SarvamnayaTantra #Agamas #LivingPhilosophy #SpiritualPractice #SeekersOfTruth #Mantra #Meditation #Consciousness

Original YouTube video: https://www.youtube.com/watch?v=yKxqcMJKX-0

This presentation is part of the Sarvāmnāya Oral Tradition Archive.
Vimarsha Foundation. (2025). The Sarvāmnāya Oral Tradition Archive [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15188107
Scat Singing: A Timbral and Phonemic Analysis
Creators: name: Bauer, William R.
Publisher: name: Current Musicology
Year: 2001

description: In this article William Bauer analyzes scat and timbre within the context of Jazz and their effects on music over time. He concludes that for many vocalists timbre is much more than a vehicle for adding coloristic touches to a melodic line. But while singers’ distinctive use of timbre sets their work apart from that of instrumentalists, the crossover of ideas between instrumentalists and vocalists indicates that the timbral analysis of scat vocals may offer insights that are applicable to instrumental music. Regardless of this potential application, however, it is evident that by closely examining how singers exercise mastery over timbre as well as other musical raw materials we can increase our understanding of singers’ accomplishments and deepen our appreciation of their contribution to jazz.
description: Current Musicology, No 71-73 (2002): Current Musicology