cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution of the spin resonance in CeCoIn$_5$ under magnetic field
Creators: name: Panarin, J.
name: Raymond, S.
name: Lapertot, G.
name: Flouquet, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The evolution of the magnetic excitation spectrum of the unconventional superconductor CeCoIn$_{5}$ was studied by inelastic neutron scattering as a function of magnetic field applied in the [1, -1, 0] direction. The spin resonance characteristic of the superconducting states was observed up to about $H_{c2}$/2 : it is still centered at (1/2, 1/2, 1/2) when the magnetic field increases while its characteristic energy decreases and its lineshape substantially broadens.
description: 4 pages, 4 figures, submitted to J. Phys. Soc. Japan
The initial mass function of early-type galaxies
Creators: name: Treu, T.
name: Auger, M. W.
name: Koopmans, L. V. E.
name: Gavazzi, R.
name: Marshall, P. J.
name: Bolton, A. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We determine an absolute calibration of the initial mass function (IMF) of early-type galaxies, by studying a sample of 56 gravitational lenses identified by the SLACS Survey. Under the assumption of standard Navarro, Frenk & White dark matter halos, a combination of lensing, dynamical, and stellar population synthesis models is used to disentangle the stellar and dark matter contribution for each lens. We define an "IMF mismatch" parameter α=M*(L+D)/M*(SPS) as the ratio of stellar mass inferred by a joint lensing and dynamical models (M*(L+D)) to the current stellar mass inferred from stellar populations synthesis models (M*(SPS)). We find that a Salpeter IMF provides stellar masses in agreement with those inferred by lensing and dynamical models (=0.00+-0.03+-0.02), while a Chabrier IMF underestimates them (=0.25+-0.03+-0.02). A tentative trend is found, in the sense that αappears to increase with galaxy velocity dispersion. Taken at face value, this result would imply a non universal IMF, perhaps dependent on metallicity, age, or abundance ratios of the stellar populations. Alternatively, the observed trend may imply non-universal dark matter halos with inner density slope increasing with velocity dispersion. While the degeneracy between the two interpretations cannot be broken without additional information, the data imply that massive early-type galaxies cannot have both a universal IMF and universal dark matter halos.
description: 10 pages 4 figures. Resubmitted to ApJ taking into account referee's comments
Fast algorithms for computing isogenies between ordinary elliptic curves in small characteristic
Creators: name: De Feo, Luca
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11Y16

description: The problem of computing an explicit isogeny between two given elliptic curves over F_q, originally motivated by point counting, has recently awaken new interest in the cryptology community thanks to the works of Teske and Rostovstev & Stolbunov. While the large characteristic case is well understood, only suboptimal algorithms are known in small characteristic; they are due to Couveignes, Lercier, Lercier & Joux and Lercier & Sirvent. In this paper we discuss the differences between them and run some comparative experiments. We also present the first complete implementation of Couveignes' second algorithm and present improvements that make it the algorithm having the best asymptotic complexity in the degree of the isogeny.
description: 21 pages, 6 figures, 1 table. Submitted to J. Number Theory
Dark Matter Annihilation in the light of EGRET, HEAT, WMAP, INTEGRAL and ROSAT
Creators: name: Gebauer, Iris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The ROSAT Galactic wind observations confirm that our Galaxy launches supernova driven Galactic winds with wind speeds of about 150 km/s in the Galactic plane. Galactic winds of this strength are incompatible with current isotropic models for Cosmic Ray transport. In order to reproduce our local CRs in the presence of Galactic winds, charged CRs are required to be much more localized than in the standard isotropic GALPROP models. This requires that anisotropic diffusion is the dominant diffusion mode in the interstellar medium, particularly that the diffusion in the disk and in the halo are different. In addition small scale phenomena such as trapping by molecular cloud complexes and the structure of our local environment might influence the secondary CR production rate and our local CR density gradients. We introduce an anisotropic convection driven transport model (aCDM) which is consistent with the Galactic wind observations by ROSAT. This also explains the large bulge/disk ratio as observed by INTEGRAL. Furthermore such models predict an increase in the $e^+/(e^++e^-)$-fraction as observed by PAMELA and HEAT, if the synchrotron constraints in the 408 MHz and WMAP range are taken into account. No additional contribution from Dark Matter is required. The aCDM is able to explain the absence of a positron annihilation signal from molecular clouds as observed by INTEGRAL by virtue of a mechanism which confines and isotropizes CRs between MCs. We find that the EGRET excess of diffuse $γ$-rays currently cannot be explained by astrophysical effects in this type of model and that the interpretation of the EGRET excess as Dark Matter annihilation is perfectly consistent with all observational constraints from local CR fluxes and synchrotron radiation.
description: 5 pages, 9 figures, to appear in the proceedings of the Identification of Dark Matter conference (IDM 2008), Stockholm, Sweden, 18-22 August, 2008
Tidal disruption, global mass function and structural parameters evolution in star clusters
Creators: name: Trenti, Michele
name: Vesperini, Enrico
name: Pasquato, Mario
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: [abridged] We present a unified picture for the evolution of star clusters on the two-body relaxation timescale. We use direct N-body simulations of star clusters in a galactic tidal field starting from different multi-mass King models, up to 10% of primordial binaries and up to Ntot=65536 particles. An additional run also includes a central Intermediate Mass Black Hole. We find that for the broad range of initial conditions we have studied the stellar mass function of these systems presents a universal evolution which depends only on the fractional mass loss. The structure of the system, as measured by the core to half mass radius ratio, also evolves toward a universal state, which is set by the efficiency of heating on the visible population of stars induced by dynamical interactions in the core of the system. Interactions with dark remnants are dominant over the heating induced by a moderate population of primordial binaries (3-5%), especially under the assumption that most of the neutron stars and black holes are retained in the system. All our models without primordial binaries undergo a deep gravothermal collapse in the radial mass profile. However their projected light distribution can be well fitted by medium concentration King models (with parameter W0 ~ 8), even though there tends to be an excess over the best fit for the innermost points of the surface brightness. This excess is consistent with a shallow cusp in the surface brightness (mu(R) ~ R^{-v} with v ~ 0.4-0.7), like it has been observed for many globular clusters from high-resolution HST imaging. Classification of core-collapsed globular clusters based on their surface brightness profile is likely to fail in systems that have already bounced back to lower concentrations.
description: 33 pages, 11 figures, ApJ accepted
High Performance Tracking with Long Straw Tubes Using Dimethyl Ether
Creators: name: L. Benussi
name: M. Bertani
name: S. Bianco
name: F. L. Fabbri
name: P. Gianotti
name: M. Giardoni
name: C. Guaraldo
name: A. Lanaro
name: V. Lucherini
name: A. Mecozzi
name: L. Passamonti
name: V. Russo
name: S. Sarwar
Publisher: name: INFN Open Access Repository
Year: 1994

description: A cylindrical tracking detector with an inner radius of one meter employing straw tubes is being envisaged for the FINUDA experiment aimed at hyper-nuclear physics at DAPHNE, the Frascati π-factory. A prototype using sevral 10mm and 20mm diameter, two meter long aluminized mylar straws has been assembled and tested with a one GeV/c pion beam. While operating with dimethyl ether gas gain, space resolution, and device systematics have been studied.A simple method of correction for systematics due to straw eccentricity has been developed and, once applied, a space resolution better than 40μm can be reached.
Açık Kültür Hareketi ve Creative Commons: Açık Eğitim Kaynakları
Creators: name: Madran, Orçun
Publisher: name: Zenodo
Year: 2021
Subjects: Açık Kültür
Açık Eğitim
Açık Eğitim Kaynakları
Açık Ders
Açık Lisans
Creative Commons

description: Bu sunumda Creative Commons (CC), CC açık lisansları ve kamu malı araçları hakkında kısa bilgilendirmenin ardından, CC'nin Açık Eğitim Kaynakları (AEK) programı tanıtılmıştır. Ayrıca AEK konulu Creative Commons Sertifika programı içeriği ve Türkçe çeviri kaynaklarından söz edilmiştir. Sunumun video kaydı www.youtube.com/c/CreativeCommonsTürkiye adresinde izlenebilir.
Measurement of the Total e^+e^- ->Hadrons Cross Section Near the e^+e^- -> NN ̅ Threshold
Creators: name: A. Antonelli
name: R. Baldini
name: M. Bertani
name: M.E. Biagini
name: V. Bidoli
name: C. Bini
name: T. Bressani
name: L. Calabrese
name: R. Cardarelli
name: R. Carlin
name: C. Casari
name: L. Cugusi
name: P. Dalpiaz
name: A. De Falco
name: G. De Zorzi
name: A. Feliciello
name: M.L. Ferrer
name: P. Ferretti
name: P. Gauzzi
name: P. Gianotti
name: E. Luppi
name: S. Marcello
name: A. Masoni
name: R. Messi
name: M. Morandin
name: L. Paoluzi
name: F. Pasqualucci
name: G. Pauli
name: N. Perlotto
name: F. Petrucci
name: M. Posocco
name: M. Preger
name: G. Puddu
name: M. Reale
name: L. Santi
name: R. Santonico
name: P. Sartori
name: M. Savriè
name: S. Serci
name: M. Spinetti
name: S. Tessaro
name: B. Voci
name: F. Zuin
Publisher: name: INFN Open Access Repository
Year: 1995

description: A new measurement of the total e^+e^- ->hadrons cross-section in the centre of mass energy range 1,8-2,5 GeV, performed by the FENICE experiment at the Frascati e^+ e^- storage ring ADONE, is presented. The behaviour of the total cross section together with the proton electromagnetic time-like form factor is discussed in terms of a narrow vector resonance close to the nucleon-antinucleon threshold.
Envelopes of open sets and extending holomorphic functions on dual Banach spaces
Creators: name: Garcia, D.
name: Kalenda, O. F. K.
name: Maestre, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 46E50; 46B20; 46B10

description: We investigate certain envelopes of open sets in dual Banach spaces which are related to extending holomorphic functions. We give a variety of examples of absolutely convex sets showing that the extension is in many cases not possible. We also establish connections to the study of iterated weak* sequential closures of convex sets in the dual of separable spaces.
description: 20 pages
Hysteretic and AC Losses of High Tc Superconductors by Numerical Solution of the Nonlinear Magnetic Diffusion Equation
Creators: name: D. Di Gioacchino
name: P. Tripodi
name: F. Celani
name: A. M. Testa
name: S. Pace
Publisher: name: INFN Open Access Repository
Year: 1996

description: The complex AC susceptibility (c) of high Tc superconducting materials has been described in terms of hysteretic and AC losses. By including both flux creep and flux flow resistivities in the expression of the flux diffusivity, induction profiles have been numerically calculated from the non linear flux diffusion equation. The imaginary part of c has been evaluated as function of temperature, frequency and amplitude of the applied magnetic field. The role of pinning and AC losses occuring in high Tc materials is discussed.
Clinical presentation and outcome of acute respiratory illnesses in South African children during the COVID-19 pandemic
Creators: name: Redfern A
name: Van Der Zalm MM,
name: Lishman J
name: Goussard P
name: Smit L
name: R, Dagan
name: Barday MM
name: M, Mare
name: Claassen M
name: Van Zyl G,
name: H, Rabie
name: Verhagen LM
Publisher: name: Zenodo
Year: 2023

description: Introduction: It is unknown if African children with acute respiratory tract infections (ARIs) caused by SARS-CoV-2 have higher morbidity and mortality. We investigated the presentation and outcomes of ARIs in children with real-time polymerase chain reaction (rt-PCR) confirmed SARS-CoV-2 compared with those who had a negative SARS-CoV-2 rt-PCR. Methods: Cross-sectional study of children aged 0-13 years old admitted with an ARI from May 5, 2020, to December 5, 2020, at Tygerberg Hospital in Cape Town, South Africa. We collected data on clinical presentation, disease severity and outcomes and included results of routinely collected respiratory virus testing if performed. Chest radiographs (CXR) were reviewed by 2 blinded external experts. Upper respiratory tract infection (URTI) was defined as respiratory symptoms without tachypnoea/respiratory distress. Lower respiratory tract infection (LRTI) was defined as respiratory symptoms with tachypnea and/or respiratory distress. Results: 176 children were included; 38 (21.6%) SARSCoV-2 rt-PCR positive (Table 1). LRTI was diagnosed in 31 (80%) of SARS-CoV-2 positive children and 102 (74%) of negative children (p=0.43). There were no SARS-CoV-2 related deaths. In multivariable analyses SARS-CoV-2 positive children: were more likely to be female (OR 2.68, 95% CI 1.18 – 6.07) had lower WAZ scores (OR 0.77, 95% CI 0.63- 0.93) The VERDI project (101045989) is funded by the European Union were more likely to have fever (OR 3.56, 95% CI 1.54-8.24) but less likely to have cough (OR 0.27, 95% CI 0.11-0.66) were not more likely to have a comorbid condition were not more likely to need respiratory support, but if required this was needed for longer time period (OR 1.1, 95% CI 1.01 – 1.20) Conclusion: This study provides further evidence of severe COVID-19 infection among young South African children, with high morbidity and health resource implications.
Formation mechanism of hairpin vortices in the wake of a truncated square cylinder in a duct
Creators: name: Dousset, Vincent
name: Pothérat, Alban
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the laminar shedding of hairpin vortices in the wake of a truncated square cylinder placed in a duct, for Reynolds numbers around the critical threshold of the onset of vortex shedding. We single out the formation mechanism of the hairpin vortices by means of a detailed analysis of the flow patterns in the steady regime. We show that unlike in previous studies of similar structures, the dynamics of the hairpin vortices is entwined with that of the counter-rotating pair of streamwise vortices, which we found to be generated in the bottom part of the near wake (these are usually referred to as base vortices). In particular, once the hairpin structure is released, the base vortices attach to it, forming its legs, so these are streamwise, and not spanwise as previously observed in unconfined wakes or behind cylinders of lower aspect ratios. We also single out a trail of Omega-shaped vortices, generated between successive hairpin vortices through a mechanism that is analogous to that active in near-wall turbulence. Finally, we show how the dynamics of the structures we identified determine the evolution of the drag coefficients and Strouhal numbers when the Reynolds number varies.
description: 17 pages, accepted for publication in the Journal of Fluid Mechanics
An Improved Model of SiO Maser Emission in Miras
Creators: name: Gray, M. D.
name: Wittkowski, M.
name: Scholz, M.
name: Humphreys, E. M. L.
name: Ohnaka, K.
name: Boboltz, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a combined dynamic atmosphere and maser propagation model of SiO maser emission in Mira variables. This model rectifies many of the defects of an earlier model of this type, particularly in relation to the infra-red (IR) radiation field generated by dust and various wavelength-dependent, optically thick layers. Modelled masers form in rings with radii consistent with those found in VLBI observations and with earlier models. This agreement requires the adoption of a radio photosphere of radius approximately twice that of the stellar photosphere, in agreement with observations. A radio photosphere of this size renders invisible certain maser sites with high amplification at low radii, and conceals high-velocity shocks, which are absent in radio continuum observations. The SiO masers are brightest at an optical phase of 0.1 to 0.25, which is consistent with observed phase-lags. Dust can have both mild and profound effects on the maser emission. Maser rings, a shock and the optically thick layer in the SiO pumping band at 8.13\micron appear to be closely associated in three out of four phase samples.
description: accepted by MNRAS, MN-08-1478-MJ.R1
Controlling grain size and texture in MgeZneMn alloys from the interaction of recrystallization and precipitation
Creators: name: Wu, Xiong
name: Jing, Xuerui
name: Xiao, Hui
name: Ouyang, Sihui
name: Tang, Aitao
name: Peng, Peng
name: Feng, Bo
name: Rashad, Muhammad
name: She, Jia
name: Chen, Xianhua
name: Zheng, Kaihong
name: Pan, Fusheng
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: The recrystallization behavior of extruded MgeZneMn alloys was systematically investigated under different aging treatment prior to extrusion. Electron backscattered diffraction analysis was used to explore the recrystallization mechanism and corresponding effects on the basal texture of alloys during extrusion. The results show that the primary coarse particles can effectively promote recrystallization nucleation. Moreover, the precipitation of nanoscale particles during the aging process play a role in pinning the grain boundaries. Therefore, after peak-aged treatment (16 h), the extruded Mg alloy obtains uniform and fine microstructure, showing good mechanical properties: the tensile yield strength, tensile strength, elongation, compressive yield strength, and tension-compression yield asym?metry were 298 MPa, 363 MPa, 26%, 260 MPa, and 0.87, respectively.
MULTI-FIELD COSET SPACE REALIZATIONS OF ω_1+∞
Creators: name: S. BELLUCCI
name: E. IVANOV
name: S. KRIVONOS
Publisher: name: INFN Open Access Repository
Year: 1992

description: We extend the coses spaces space formulation of the one-field realization of ω_1+∞ to include more fields as the coset parameters. This can be done either by choosing a smaller stability subalgebrain the nonlinear realization of ω_1+∞ symmetry, or by considering a nonlinear realization of some extended symmetrym or by combining both options. We show that all these possibilities give rise to the multi-field realizations of ω_1+∞. We deduce the two-field realization of ω_1+∞ proceeding from a coset space of the symmetry group G which is an extension of ω_1+∞ by the second self-commuting set of higher spin currents. Next, starting with the unexpected ω_1+∞ but placing all its spin 2 generators into the coset, we obtain a new two-field realization of ω_1+∞ which essentially involves a 2D dilaton. In order to construct the invariant action for this system we add one more field and so get a new three-field realization of ω_1+∞. We re-derive it within the coset space approach, by applying the latter to an extended symmetry group G which is a nonlinear deformation of G. Finally we present some multi-field generalizations of our three-field realization and discuss several intriguing parallels with N=2 strings and conformal affine Toda theories.
Neutriniless Double Beta Decay with XE-136 in Borexino Counting Test Facility (CTF)
Creators: name: B. Caccianiga
name: M.G. Giammmarchi
Publisher: name: INFN Open Access Repository
Year: 2000

description: This paper discusses the methods and sensitivity for a Double Beta Decay experiment based on the Xe-136 candidate for BOREXINO or the BOREXINO Counting Test Facility. Different background assumptions and experimental configurations are studied, assuming a data taking period of one year. The related experimental problems are discussed and summary tables containing the sensitivity estimates for the various configurations are presented.
Keck HIRES Spectroscopy of Extragalactic HII Regions: C and O Abundances from Recombination Lines
Creators: name: Esteban, C.
name: Bresolin, F.
name: Peimbert, M.
name: Garcia-Rojas, J.
name: Peimbert, A.
name: Mesa-Delgado, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present very deep spectrophotometry of 14 bright extragalactic HII regions belonging to spiral, irregular, and blue compact galaxies. The data for 13 objects were taken with the HIRES echelle spectrograph on the Keck I telescope. We have measured CII recombination lines in 10 of the objects and OII recombination lines in 8 of them. We have determined electron temperatures from line ratios of several ions, specially of low ionization potential ones. We have found a rather tight linear empirical relation between Te([NII]) and Te([OIII]). We have found that OII lines give always larger abundances than [OIII] lines. Moreover, the difference of both O++ abundance determinations --the so-called abundance discrepancy factor-- is very similar in all the objects, with a mean value of 0.26+/-0.09 dex, independently of the properties of the HII region and of the parent galaxy. Using the observed recombination lines, we have determined the O, C, and C/O radial abundance gradients for 3 spiral galaxies: M33, M101, and NGC2403, finding that C abundance gradients are always steeper than those of O, producing negative C/O gradients accross the galactic disks. This result is similar to that found in the Milky Way and has important implications for chemical evolution models and the nucleosynthesis of C.
description: Accepted for publication in ApJ, 54 pages, 4 figures
title: Complex Project ECA – Extra Containercapaciteit Antwerpen: deelrapport 1. Hydrodynamisch model
Creators: name: Smolders, Sven
name: Bi, Qilong
name: Vanlede, Joris
Publisher: name: Flanders Hydraulics
Year: 2023

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen. Volume : 20_091_1 Issue : Pagination : 23 + 12 p. bijl.
Generalized virial theorem in Palatini $f(R)$ gravity
Creators: name: Sefiedgar, A. S.
name: Atazadeh, K.
name: Sepangi, H. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the collision-free Boltzmann equation in Palatini $f({\mathcal{R}})$ gravity to derive the virial theorem within the context of the Palatini approach. It is shown that the virial mass is proportional to certain geometrical terms appearing in the Einstein field equations which contribute to gravitational energy and that such geometric mass can be attributed to the virial mass discrepancy in cluster of galaxies. We then derive the velocity dispersion relation for clusters followed by the metric tensor components inside the cluster as well as the $f({\mathcal{R}})$ lagrangian in terms of the observational parameters. Since these quantities may also be obtained experimentally, the $f({\mathcal{R}})$ virial theorem is a convenient tool to test the viability of $f({\mathcal{R}})$ theories in different models. Finally, we discuss the limitations of our approach in the light of the cosmological averaging used and questions that have been raised in the literature against such averaging procedures in the context of the present work.
description: 16 pages, to appear in PRD
Search for Wimps Annual Modulation Signature: Results from DAMA/NaI-3 and DAMA/NaI-4 and the Global Combined Analysis
Creators: name: R.Bernabei
name: P. Belli
name: R. Cerulli
name: F. Montecchia
name: M. Amato
name: G. Ignesti
name: A. Incicchitti
name: D. Prosperi
name: C.J. Dai
name: H.L. He
name: H.H. Kunag
name: J.M. Ma
Publisher: name: INFN Open Access Repository
Year: 2000

description: Data, collected by the ≃100 kg NaI(Tl) DAMA set-up at the Gran Sasso National Laboratory of I.N.F.N. during two further yearly cycles (DAMA/NaI-3 and DAMA/NaI-4; statistics of 38475 kg·day), have been analysed in terms of WIMP annual modulation signature. The results agree with those previously achieved. The cumulative analysis of all the available data (DAMA/NaI-1 to 4; statistics of 57986 kg·day) favours the possible presence of a WIMP with Mw=(52+10−8) GeV and ξσp=(7.2+0.4−0.9)·10−6 pb at 4 σ C.L., when standard astrophysical assumptions are considered. The allowed mass extends up to 105 GeV (1 σ) when the uncertainty on the mean value of the local velocity v0 is taken into account and up to 132 GeV (1 σ) in case a possible bulk halo rotation is taken into account. Moreover, the allowed regions extend to lower ξσp values when the upper limits on the recoil differential counting rate obtained from DAMA/NaI-0 is included in the cumulative analysis (favouring, in case of standard assumptions, Mw=(44+12−9) GeV and ξσp=(5.4±1.0)·10−6 pb at ≃4 σ C.L.). The 3 σ C.L. allowed regions in the ξσp, Mw plane summarize the obtained main physical results.
title: Dr. Robert M. Friedman, MD Oral History Interview Transcript
Creators: name: Uniformed Services University of the Health Sciences
Publisher: name: University Archives, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
Year: 2009
Subjects: classificationCode: 3
subject: FOS: Medical and health sciences
classificationCode: 6.1
subject: FOS: History and archaeology

description: USU Oral History Interview Transcript
Dr. Robert M. Friedman, MD
Founding Chair, Department of Pathology
05-22-2009
Interviewed by Emelie Rubin
title: Entwicklung eines elektrischen Energiespeichers zur Integration in Carbonbeton
Creators: name: Krois, Konrad
Publisher: name: UNSPECIFIED
Year: 2021

description: Zum Gelingen der Energiewende, hin zu einer auf erneuerbaren Energien beruhenden Stromversorgung, werden nachhaltige, leistungsfähige Energiespeicherkonzepte benötigt. Superkondensatoren stellen derartige elektrische Energiespeicher dar. Sie weisen eine hohe Leistungsdichte sowie lange Lebensdauer auf und können zudem vollständig aus nachhaltigen Materialien aufgebaut werden. Allerdings verhindert ihre geringe Energiedichte den weit verbreiteten Einsatz. Um dem zu begegnen, wird als Ansatz eine Integration in Carbonbeton verfolgt. Die Verwendung von Carbon als Bewehrungsmaterial erlaubt es zusätzliches Raumvolumen für die elektrische Energiespeicherung nutzbar zu machen und so die niedrige Energiedichte von Superkondensatoren auszugleichen. Ziel dieser Arbeit ist die Entwicklung eines leistungsfähigen und langzeitstabilen Superkondensator-Energiespeichers, basierend auf nachhaltigen und kostengünstigen Rohstoffen, für die volumenoptimale Integration in Carbonbeton. Dies geschieht in drei Schritten: Der Festlegung des Integrationskonzeptes der Speicherzellen in den Carbonbeton; der Identifikation aktiver Zellkomponenten für Superkondensator-Energiespeicher und der Auswahl der passiven Zellkomponenten, sowie der Bestimmung der Leistungsdaten der Speicherzelle. Die Integration mittels eines Kassettenkonzeptes, bei dem die Zellen nachträglich in Hohlräume im Betonbauteil eingebracht werden, stellt sich als der sinnvollste Weg heraus, eine Integration von Superkondensatoren in Carbonbeton zu realisieren. Eine Kontaktierung der Zellen über die Carbonbewehrung wurde ebenfalls betrachtet und wird aus technischer und wirtschaftlicher Sicht als nicht erstrebenswert erachtet. Eine geeignete Aktivmaterial-/Elektrolyt-Kombination für einen gebäudeintegrierten Superkondensatorspeicher konnte aus kommerziellen Aktivkohlen und günstigen wässrigen Elektrolyten identifiziert werden. Darüber hinaus wird die Steigerung der Energiedichte mittels der Additivierung durch Redoxelektrolyte, sowie der Optimierung der Spannungsgrenzen gezeigt. Durch die Auswahl eines geeigneten Stromkollektors und Separators wird die Leistungsfähigkeit der Zelle weiter optimiert, was anhand der Leistungsdaten und Langzeitstabilität bestätigt wird. Eine Skalierung dieser Zelle auf bis zu 100 F Zellkapazität erfolgt durch einen Multielektrodenaufbau. Eine Kostenabschätzung zeigt, dass der entwickelte Energiespeicher, unter der Randbedingung eines bauteilintegrierten Energiespeichers und verglichen mit kommerziellen Superkondensatoren eine hohe Wirtschaftlichkeit sowie günstigere Energiekosten gegenüber dem Stand der Technik aufweist. Das neuentwickelte Speichersystem stellt eine attraktive, ökonomische und ökologische Ergänzung zu bereits verfügbaren Speicherlösungen dar. Insbesondere wenn hohe Volumina für die Energiespeicher zur Verfügung stehen und simultan ein hoher Anspruch an Langzeitstabilität, sowie Energie- und Leistungsmenge gestellt wird.
The distance to the Andromeda Galaxy from eclipsing binaries
Creators: name: Vilardell, F.
name: Ribas, I.
name: Jordi, C.
name: Fitzpatrick, E. L.
name: Guinan, E. F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The cosmic distance scale largely depends on distance determinations to Local Group galaxies. In this sense, the Andromeda Galaxy (M31) is a key rung to better constrain the cosmic distance ladder. A project was started in 1999 to firmly establish a direct and accurate distance to M31 using eclipsing binaries (EBs). After the determination of the first direct distance to M31 from EBs, the second direct distance to an EB system is presented: M31V_J00443610+4129194. Light and radial velocity curves were obtained and fitted to derive the masses and radii of the components. The acquired spectra were combined and disentangled to determine the temperature of the components. The analysis of the studied EB resulted in a distance determination to M31 of (m-M)o = 24.30 +/- 0.11 mag. This result, when combined with the previous distance determination to M31, results in a distance modulus of (m-M)o = 24.36 +/- 0.08 mag (744 +/- 33 kpc), fully compatible with other distance determinations to M31. With an error of only 4%, the obtained value firmly establishes the distance to this important galaxy and represents the fulfillment of the main goal of our project.
description: 7 pages, 3 figures, accepted for publication in A&A (Nov 6, 2009)
An interface for linking ancient languages
Creators: name: Mallia, Michele
name: Quochi, Valeria
name: Bandini, Michela
Publisher: name: Zenodo
Year: 2023
Subjects: eLexicography
Ancient languages
Linguistic Linked Open Data

description: This presentation (for LTaDH-RA 2023, Sofia, Bulgary) focuses on the linking potentials offered by the EpiLexO web-based front-end for the creation and editing of an ecosystem of digital resources for ancient languages, developed in the context of a project on the languages of fragmentary attestation for ancient Italy. The focus is particularly on some mechanisms introduced for creating attestations by linking lexical forms to their variants in the inscriptions, as well as for linking lexical data to external independent LOD datasets available on a remote endpoint. Finally, the conclusion briefly introduces the final platform component, a fruition application that will allow for smart cross-querying and visualisation of the created interlinked ecosystem.
Discovery of Pulsed $γ$-rays from PSR J0034-0534 with the Fermi LAT: A Case for Co-located Radio and $γ$-ray Emission Regions
Creators: name: The Fermi LAT Collaboration
name: Consortium, Pulsar Timing
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Millisecond pulsars (MSPs) have been firmly established as a class of gamma-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using thirteen months of LAT data significant gamma-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The gamma-ray light curve shows two peaks separated by 0.274$\pm$0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The $\geq$0.1 GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8$\pm 0.6\pm$0.1 GeV and a photon index of 1.5$\pm 0.2\pm$0.1, first errors are statistical and second are systematic. The near-alignment of the radio and gamma-ray peaks strongly suggests that the radio and gamma-ray emission regions are co-located and both are the result of caustic formation.
description: 20 pages, 3 figures, 2 tables. Accepted for publication in ApJ
Momentum exchange between light and a single atom: Abraham or Minkowski?
Creators: name: Hinds, E. A.
name: Barnett, Stephen M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the forces exerted by a pulse of plane-wave light on a single atom. The leading edge of the pulse exerts a dispersive force on the atom, and this modifies the atomic momentum while the atom is enveloped in the light. The standard view of the optical dipole force indicates that red-detuned light should attract the atom towards high intensity. This should increase the average momentum per photon to $\textbf{p}_{0} n$, where $\textbf{p}_{0}$ is the photon momentum in free space and $n$ is the average refractive index due to the presence of the atom in the light. We show, however, that this is the wrong conclusion and that the atom is in fact repelled from the light by the dispersive forces, giving the photons a momentum $\textbf{p}_{0} /n$. This leads us to identify Abraham's optical momentum with the kinetic momentum transfer. The form due to Minkowski is similarly associated with the canonical momentum. We consider the possibility of demonstrating this in the laboratory, and we note an unexpected connection with the Aharonov-Casher effect.
description: 4 pages, 1 figure
Products of Radon measures
Creators: name: Godfrey, Michael Colin
Publisher: name: University of British Columbia
Year: 2011

description: Given a Radón measure on each of two locally compact Hausdorff spaces we consider three product measures on the product space - the classical product measure generated by measurable rectangles as in Munroe, the product measure generated by measurable rectangles and nil sets of Bledsoe and Morse, and a Radón product measure obtained by a Riesz Representation Theorem from the product linear functional of Bourbaki. For the classical product measure we prove a Fubini Theorem for compact sets although we do not know whether compact sets are measurable, a theorem giving necessary and sufficient conditions for open sets to be measurable, and a theorem that every closed СɣϬ is measurable. We prove that all three product measures agree on compact sets and thus that the Bledsoe-Morse product measure and the Radón product measure agree on open sets. Finally, we give examples to show that certain results cannot be extended.
Supplementary document for Easily scalable multi-color DMD-based structured illumination microscopy - 6758288.pdf
Creators: name: Gong, Daozheng
name: Cai, Chufan
name: Strahilevitz, Eli
name: Chen, Jing
name: Scherer, Norbert
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document
A continuum of structure and stellar content from Virgo cluster early-type dwarfs to giants?
Creators: name: Janz, Joachim
name: Lisker, Thorsten
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Based on the wealth of multiwavelength imaging data from the SDSS, we investigate whether dwarf and giant early-type galaxies in the Virgo cluster follow a continuum in their structural parameters and their stellar population characteristics. More specifically we study the relation between size and brightness for the galaxies and their color magnitude relation. In both cases, we find noticeable deviations from a simple joint behavior of dwarfs and giants. We discuss these findings in the light of the different formation mechanisms commonly assumed for dwarf and giant early types, thereby taking into account the existence of several distinct early-type dwarf subclasses. By comparing our results to a semianalytic model of galaxy formation, we argue that the analyzed relations might be reproduced by processes that form dwarfs and giants altogether. The work presented here is based on Janz & Lisker 2008, 2009.
description: 7 pages, 3 figures, to be published in Astronomische Nachrichten (proceedings of Symposium 6 of the JENAM 2008, Vienna)
README.md from Pre-fertilization gamete thermal environment influences reproductive success, unmasking opposing sex-specific responses in Atlantic Salmon (Salmo salar)
Creators: name: Graziano, Marco
name: Solberg, Monica F.
name: Glover, Kevin A.
name: Vasudeva, Ramakrishnan
name: Dyrhovden, Lise
name: Murray, David
name: Immler, Simone
name: Gage, Matthew J. G.
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified
classificationCode: 310404
subject: Evolution of developmental systems
classificationCode: 310499
subject: Evolutionary biology not elsewhere classified

description: File containing all the necessary info ton how to access the datasets and run the R scripts
Methods for calculating forces within quantum Monte Carlo simulations
Creators: name: Badinski, A.
name: Haynes, P. D.
name: Trail, J. R.
name: Needs, R. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Atomic force calculations within the variational and diffusion quantum Monte Carlo (VMC and DMC) methods are described. The advantages of calculating DMC forces with the "pure" rather than the "mixed" probability distribution are discussed. An accurate and practical method for calculating forces using the pure distribution is presented and tested for the SiH molecule. The statistics of force estimators are explored and violations of the Central Limit Theorem are found in some cases.
Temperature Dependence of non-Debye Disorder in Doped Manganites
Creators: name: C. Meneghini
name: R. Cimino
name: S. Pascarelli
name: S. Mobilio
name: C. Raghu
name: D.D. Sarma
Publisher: name: INFN Open Access Repository
Year: 1997

description: Ca-doped manganite La1-xCaxMnO3 samples with x=0.2 and 0.4 were investigated by extended x-ray absorption fine structure (EXAFS) as a function of temperature and preparation method. The samples exhibit characteristic resistivity change across the metal-insulator (MI) transition temperature whose shape and position depend on Ca-doping concentration and sample thermal treatment. EXAFS results evidenced an increase of nonthermal disorder at the MI transition temperature which is significantly correlated with the resistivity behavior.
Koszul homology and syzygies of Veronese subalgebras
Creators: name: Bruns, Winfried
name: Conca, Aldo
name: Roemer, Tim
Publisher: name: arXiv
Year: 2009
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13D02, 13D25, 14A05

description: A graded K-algebra R has property N_p if it is generated in degree 1, has relations in degree 2 and the syzygies of order less or equal to p on the relations are linear. The Green-Lazarsfeld index of R is the largest p such that it satisfies the property N_p. Our main results assert that (under a mild assumption on the base field K) the c-th Veronese subring of a polynomial ring has Green-Lazarsfeld index greater or equal to c+1. The same conclusion also holds for an arbitrary standard graded algebra, provided c is sufficiently large.
description: 17 pages, minor modifications
Chemerin and Chemokine-like Receptor 1 Expression in Ovarian Cancer Associates with Proteins Involved in Estrogen Signaling
Creators: name: Weber, Florian
name: Schueler-Toprak, Susanne
name: Buechler, Christa
name: Ortmann, Olaf
name: Treeck, Oliver
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: chemerin; chemokine-like receptor 1; estrogen-related receptors; ovarian cancer; overall survival; progression-free survival
subject: 610 Medizin

description: Chemerin, a pleiotropic adipokine coded by the RARRES2 gene, has been reported to affect the pathophysiology of various cancer entities. To further approach the role of this adipokine in ovarian cancer (OC), intratumoral protein levels of chemerin and its receptor chemokine-like receptor 1 (CMKLR1) were examined by immunohistochemistry analyzing tissue microarrays with tumor samples from 208 OC patients. Since chemerin has been reported to affect the female reproductive system, associations with proteins involved in steroid hormone signaling were analyzed. Additionally, correlations with ovarian cancer markers, cancer-related proteins, and survival of OC patients were examined. A positive correlation of chemerin and CMKLR1 protein levels in OC (Spearman’s rho = 0.6, p < 0.0001) was observed. Chemerin staining intensity was strongly associated with the expression of progesterone receptor (PR) (Spearman´s rho = 0.79, p < 0.0001). Both chemerin and CMKLR1 proteins positively correlated with estrogen receptor β (ERβ) and estrogen-related receptors. Neither chemerin nor the CMKLR1 protein level was associated with the survival of OC patients. At the mRNA level, in silico analysis revealed low RARRES2 and high CMKLR1 expression associated with longer overall survival. The results of our correlation analyses suggested the previously reported interaction of chemerin and estrogen signaling to be present in OC tissue. Further studies are needed to elucidate to which extent this interaction might affect OC development and progression.
title: Sicherheitsrat und Göttlich Inkasso : Religion und Außenpolitik im antiken Mesopotamien
Creators: name: Stracke, Elmar
Publisher: name: University of Bayreuth
Year: 2020
Subjects: subject: Religion
subject: Außenpolitik
subject: Mesopotamien
subject: Altertum
subject: UNO
subject: Sicherheitsrat
subject: Antike
subject: 180
subject: 200
subject: 290
subject: 320
subject: 930

description: Religion wird in einer säkularen Außenpolitik schnell als persönliche Angelegenheit oder Hindernis für rationale Entscheidungen abgetan. Ein Blick ins antike Mesopotamien zeigt, dass uns diese reflexartige Abwertung blind dafür macht, wie eng Religion und Außenpolitik seit Beginn der Staatlichkeit und bis heute strukturell, rational und auf teils überraschende Weise verwoben sind.
MOESM1 of Comparison of efficacy and safety among axitinib, sunitinib, and sorafenib as neoadjuvant therapy for renal cell carcinoma: a retrospective study
Creators: name: Cai, Wen
name: Cai, Biao
name: Zhou, Juan
name: Chen, Yonghui
name: Zhang, Jin
name: Huang, Yiran
name: Xue, Wei
name: Huang, Jiwei
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Patients and methods.
Quantitative asymptotics of graphical projection pursuit
Creators: name: Meckes, Elizabeth
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: There is a result of Diaconis and Freedman which says that, in a limiting sense, for large collections of high-dimensional data most one-dimensional projections of the data are approximately Gaussian. This paper gives quantitative versions of that result. For a set of deterministic vectors $\{x_i\}_{i=1}^n$ in $\R^d$ with $n$ and $d$ fixed, let $θ\in\s^{d-1}$ be a random point of the sphere and let $μ_n^θ$ denote the random measure which puts mass $\frac{1}{n}$ at each of the points $\inprod{x_1}θ,...,\inprod{x_n}θ$. For a fixed bounded Lipschitz test function $f$, $Z$ a standard Gaussian random variable and $σ^2$ a suitable constant, an explicit bound is derived for the quantity $\ds¶[|\int f dμ_n^θ-\E f(σZ)|>ε]$. A bound is also given for $\ds¶[d_{BL}(μ_n^θ, N(0,σ^2))>ε]$, where $d_{BL}$ denotes the bounded-Lipschitz distance, which yields a lower bound on the waiting time to finding a non-Gaussian projection of the $\{x_i\}$ if directions are tried independently and uniformly on $\s^{d-1}$.
description: Proof of Theorem 2 reorganized, some additional comments on motivation, including a new corollary on waiting times to find non-Gaussian directions. To appear in Elec. Comm. Probab
Linked Open Terms (LOT) Methodology
Creators: name: Poveda-Villalón, María
name: Fernández-Izquierdo, Alba
name: García-Castro, Raúl
Publisher: name: Zenodo
Year: 2019
Subjects: ontology engineering

description: LOT (Linked Open Terms) Methodology is an industrial method for developing ontologies and vocabularies. The last version of LOT is available in the website: https://lot.linkeddata.es/
General moment theorems for non-distinct unrestricted partitions
Creators: name: Coons, Michael
name: Kirsten, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A well-known result from Hardy and Ramanujan gives an asymptotic expression for the number of possible ways to express an integer as the sum of smaller integers. In this vein, we consider the general partitioning problem of writing an integer $n$ as a sum of summands from a given sequence $\gL$ of non-decreasing integers. Under suitable assumptions on the sequence $\gL$, we obtain results using associated zeta-functions and saddle-point techniques. We also calculate higher moments of the sequence $\gL$ as well as the expected number of summands. Applications are made to various sequences, including those of Barnes and Epstein types. These results are of potential interest in statistical mechanics in the context of Bose-Einstein condensation.
description: 21 pages