cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Longitudinal analysis techniques in epidemiology : how prospective cohort data can be used to understand pathways to cardiometabolic disease outcomes : findings from the cardiovascular risk in young Finns study
Creators: name: Buscot, Marie-Jeanne
Publisher: name: University Of Tasmania
Year: 2023

description: The overall contribution of this thesis has been the application and development of growth modeling methods for analysing continuous longitudinal data arising from long-term observational studies in epidemiology, with a special emphasis on how these techniques can be used to investigate pathways leading to important cardiometabolic risk factors or deleterious cardiovascular disease outcomes in adulthood. These risk factors (obesity, dyslipidemia and hypertension) and clinical outcomes (pre-atherosclerosis, and type 2 diabetes mellitus) are important because they are associated with increased risk of developing heart disease and stroke. This general aim was addressed in three parts: 1. First, analytical strategies and key issues relative to the application of growth curve modeling methods to continuous non-linear response data were identified, reviewed and compiled. In this phase, specific emphasis was placed on the technical considerations of data arising from cohort sequential studies where there were less than 10 time points per person collected across the life course, and where the time between sequential measures is not balanced between participants. This aim was addressed in Chapter 2, detailed below. 2. Second, growth curve modeling theory was tailored and extended to develop a Bayesian trajectory divergence‚ÄövÑvp method in Chapter 4. This method allows the identification of the point or age, in the life course when participants who develop important health outcomes later in life begin to diverge in their nonlinear trajectories of continuous modifiable risk factors, compared with those who remain healthy. 3. Third, the reviewed and developed growth curve methodologies in part one were applied to model and analyse the longitudinal trajectories of a number of continuous measures of cardiometabolic risk. Data from the Cardiovascular Risk in Young Finns Study (YFS) was used. The Young Finns Study is an accelerated prospective cohort study that has collected cardiometabolic risk factor data in a large sample of Finnish participants from childhood to mid-adulthood across eight waves of follow-up over the course of 31 years. These analyses were written as a series of 4 original papers included in Chapters 3 to 6, which have been (or will be) submitted to journals.
Additional file 1 of What is the right sequencing approach? Solo VS extended family analysis in consanguineous populations
Creators: name: Alfares, Ahmed
name: Alsubaie, Lamia
name: Aloraini, Taghrid
name: Alaskar, Aljoharah
name: Althagafi, Azza
name: Alahmad, Ahmed
name: Rashid, Mamoon
name: Alswaid, Abdulrahman
name: Alothaim, Ali
name: Eyaid, Wafaa
name: Ababneh, Faroug
name: Albalwi, Mohammed
name: Alotaibi, Raniah
name: Almutairi, Mashael
name: Altharawi, Nouf
name: Alsamer, Alhanouf
name: Abdelhakim, Marwa
name: Kafkas, Senay
name: Mineta, Katsuhiko
name: Cheung, Nicole
name: Abdallah, Abdallah M.
name: Büchmann-Møller, Stine
name: Fukasawa, Yoshinori
name: Zhao, Xiang
name: Rajan, Issaac
name: Hoehndorf, Robert
name: Al Mutairi, Fuad
name: Gojobori, Takashi
name: Alfadhel, Majid
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Computational Biology

description: Additional file 1.
Swift observations of GW Lib: a unique insight into a rare outburst
Creators: name: Byckling, K.
name: Osborne, J. P.
name: Wheatley, P. J.
name: Wynn, G. A.
name: Beardmore, A.
name: Braito, V.
name: Mukai, K.
name: West, R. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The second known outburst of the WZ Sge type dwarf nova GW Lib was observed in April 2007. We have obtained unique multiwavelength data of this outburst which lasted ~ 26 days. AAVSO observers recorded the outburst in the optical, which was also monitored by WASP, with a peak V magnitude of ~ 8. The outburst was followed in the UV and X-ray wavelengths by the Swift UVOT and XRT telescopes. The X-ray flux at optical maximum was found to be three orders of magnitude above the pre-outburst quiescent level, whereas X-rays are normally suppressed during dwarf nova outbursts. A distinct supersoft X-ray component was also detected at optical maximum, which probably arises from an optically-thick boundary layer. Follow-up Swift observations taken one and two years after the outburst show that the post-outburst quiescent X-ray flux remains an order of magnitude higher than the pre-outburst flux. The long interoutburst timescale of GW Lib with no observed normal outbursts support the idea that the inner disc in GW Lib is evacuated or the disc viscosity is very low.
description: 14 pages, 7 figures, accepted for publication in MNRAS
An AzTEC 1.1-mm Survey for ULIRGs in the field of the Galaxy Cluster MS 0451.6-0305
Creators: name: Wardlow, J. L.
name: Smail, Ian
name: Wilson, G. W.
name: Yun, M. S.
name: Coppin, K. E. K.
name: Cybulski, R.
name: Geach, J. E.
name: Ivison, R. J.
name: Aretxaga, I.
name: Austermann, J. E.
name: Edge, A. C.
name: Fazio, G. G.
name: Huang, J.
name: Hughes, D. H.
name: Kodama, T.
name: Kang, Y.
name: Kim, S.
name: Mauskopf, P. D.
name: Perera, T. A.
name: Scott, K. S.
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 have undertaken a deep (sigma~1.1 mJy) 1.1-mm survey of the z=0.54 cluster MS 0451.6-0305 using the AzTEC camera on the James Clerk Maxwell Telescope. We detect 36 sources with S/N>3.5 in the central 0.10 deg^2 and present the AzTEC map, catalogue and number counts. We identify counterparts to 18 sources (50%) using radio, mid-infrared, Spitzer IRAC and Submillimeter Array data. Optical, near- and mid-infrared spectral energy distributions are compiled for the 14 of these galaxies with detectable counterparts, which are expected to contain all likely cluster members. We then use photometric redshifts and colour selection to separate background galaxies from potential cluster members and test the reliability of this technique using archival observations of submillimetre galaxies. We find two potential MS 0451-03 members, which, if they are both cluster galaxies have a total star-formation rate (SFR) of ~100 solar masses per year -- a significant fraction of the combined SFR of all the other galaxies in MS 0451-03. We also examine the stacked rest-frame mid-infrared, millimetre and radio emission of cluster members below our AzTEC detection limit and find that the SFRs of mid-IR selected galaxies in the cluster and redshift-matched field populations are comparable. In contrast, the average SFR of the morphologically classified late-type cluster population is ~3 times less than the corresponding redshift-matched field galaxies. This suggests that these galaxies may be in the process of being transformed on the red-sequence by the cluster environment. Our survey demonstrates that although the environment of MS 0451-03 appears to suppress star-formation in late-type galaxies, it can support active, dust-obscured mid-IR galaxies and potentially millimetre-detected LIRGs.
description: 20 pages, 9 figures, 5 tables. Accepted for publication in MNRAS. High resolution version available at http://www.astro.dur.ac.uk/~d30qst/papers/aztec_ms0451.pdf
title: An Activist View of CEO Compensation
Creators: name: Baum, Alex
name: Hale, David Robert
name: Morfit, Mason
name: Larcker, David F.
name: Tayan, Brian
Publisher: name: Corporate Governance Research Initiative
Year: 2017

description: Understanding CEO compensation plans is a continuing challenge for directors and investors. The disclosure of these plans is dictated by SEC rules that rely heavily on the “fair value” of awards at the time they are granted. The problem with these numbers is that they are static and do not reflect how pay changes with performance. Activist fund ValueAct Capital has developed a framework to address this problem. Their approach is to strip down and systematically reconstruct the compensation figures in the annual proxy, allowing for a step-by-step evaluation of the conditions under which variable pay is realized. In this Closer Look, we examine this framework in detail. We ask: How useful is this framework in understanding the relation between pay and performance? Are large “minimum” payments indicative of managerial abuse? What insights does this analysis provide into the governance quality of different firms? How might a board monitor to ensure that the CEO is not taking on excessive risk? What does it say about SEC rules that the results of this analysis are vastly different from the figures provided in the annual proxy?
MPEC 2024-S110 : 2024 SN2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SN2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Value Added Catalog of physical properties of more than 1.3 million galaxies from the DESI Survey
Creators: name: Siudek, Malgorzata
Publisher: name: Zenodo
Year: 2024

description: Supplementary material to DESI's publication "Value Added Catalog of physical properties of millions of of more than 1.3 million galaxies from DESI Survey" to comply with the data management plan. The data includes the Value Added Catalog as well as the data points of each figure in the paper. Exemplary Jupyter Notebooks are given.
Rayleigh scattering cross-sections of nitrogen and argon
Creators: name: Wu, Michael W. H.
Publisher: name: University of British Columbia
Year: 2011

description: Rayleigh Scattering from neutral nitrogen and argon at room temperature has been studied using a 12 megawatt Q-switched pulse ruby laser. The scattering angle was chosen to be 90 degrees from the incident beam. The relative differential scattering cross-section and the pressure dependence of the scattered signal of the scattering media were determined. Measurements of the absolute differential cross-section of nitrogen and argon were also obtained. I found that the results agree very satisfactorily with the prediction of the theory within experimental error.
Exact sampling of corrugated surfaces
Creators: name: Caracciolo, Sergio
name: Rinaldi, Enrico
name: Sportiello, Andrea
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We discuss an algorithm for the exact sampling of vectors v in [0,1]^N satisfying a set of pairwise difference inequalities. Applications include the exact sampling of skew Young Tableaux, of configurations in the Bead Model, and of corrugated surfaces on a graph, that is random landscapes in which at each vertex corresponds a local maximum or minimum. As an example, we numerically evaluate with high-precision the number of corrugated surfaces on the square lattice. After an extrapolation to the thermodynamic limit, controlled by an exact formula, we put into evidence a discrepancy with previous numerical results.
description: 7 pages
Some considerations concerning newtonian charts
Creators: name: Gegenberg, Jack David
Publisher: name: University of British Columbia
Year: 2011

description: In Part I, spherically symmetric solutions of Rastall's 1971 gravitational field equations for empty space-time are examined. One static solution is found to be just a static spherically symmetric Newtonian metric; i.e., the metric of Rastall's 1968 scalar theory of gravity. However, there are other solutions which satisfy the same boundary conditions at spatial infinity. It is observed that the time-like vector field n[formula omitted] appearing in the field equations is not uniquely defined when the metric is assumed to be spherically symmetric. Part I concludes with a discussion of the effects of this ambiguity upon the solutions of the field equations. Part II is a discussion of an alternative procedure for generalizing Rastall's 1968 theory of gravity. The new, generalized Newtonian metric is assumed to satisfy the linearized vacuum field equations of General Relativity in the weak-field limit. The quantities from which generalized Newtonian metrics are constructed are then found to exhibit wave-like behavior.
Details on Materials and Methods from Parasite resistance and parasite tolerance: insights into transgenerational immune priming in an invertebrate host
Creators: name: Paraskevopoulou, Sofia
name: Gattis, Sabrina
name: Ben-Ami, Frida
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 60801 Animal Behaviour

description: Acclimation process, age-structure feeding protocol, replication for each treatment and clone
The Atacama Cosmology Telescope DR6 and DESI: Structure growth measurements from the cross-correlation of DESI Legacy Imaging galaxies and CMB lensing from ACT DR6 and \textit{Planck} PR4
Creators: name: Qu, Frank J.
name: Hang, Qianjun
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Physical cosmology

description: Chains and data used for the project The Atacama Cosmology Telescope DR6 and DESI: Structure growth measurements from the cross-correlation of DESI Legacy Imaging galaxies and CMB lensing from ACT DR6 and \textit{Planck} PR4
Additional file 2 of What is the right sequencing approach? Solo VS extended family analysis in consanguineous populations
Creators: name: Alfares, Ahmed
name: Alsubaie, Lamia
name: Aloraini, Taghrid
name: Alaskar, Aljoharah
name: Althagafi, Azza
name: Alahmad, Ahmed
name: Rashid, Mamoon
name: Alswaid, Abdulrahman
name: Alothaim, Ali
name: Eyaid, Wafaa
name: Ababneh, Faroug
name: Albalwi, Mohammed
name: Alotaibi, Raniah
name: Almutairi, Mashael
name: Altharawi, Nouf
name: Alsamer, Alhanouf
name: Abdelhakim, Marwa
name: Kafkas, Senay
name: Mineta, Katsuhiko
name: Cheung, Nicole
name: Abdallah, Abdallah M.
name: Büchmann-Møller, Stine
name: Fukasawa, Yoshinori
name: Zhao, Xiang
name: Rajan, Issaac
name: Hoehndorf, Robert
name: Al Mutairi, Fuad
name: Gojobori, Takashi
name: Alfadhel, Majid
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Computational Biology

description: Additional file 2.
Protostellar disks formed from rigidly rotating cores
Creators: name: Walch, S.
name: Burkert, A.
name: Whitworth, A.
name: Naab, T.
name: Gritschneder, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Abridged: We use three-dimensional SPH simulations to investigate the collapse of low-mass prestellar cores and the formation and early evolution of protostellar discs. The initial conditions are slightly supercritical Bonnor-Ebert spheres in rigid rotation. The core mass and initial radius are held fixed at M_O=6.1 M_sun and R_O=17,000 AU, and the only parameter that we vary is the initial angular speed Ω_O. Protostellar discs forming from cores with Ω_O<1.35 10d-13 1/s have radii between 100 and 300 AU and are quite centrally concentrated; due to heating by gas infall onto the disc and accretion onto the central object, they are also quite warm, T>100 K, and therefore stable against gravitational fragmentation. In contrast, more rapidly rotating cores form discs which are less concentrated and cooler, and have radii between 400 and 1000 AU; as a consequence they are prone to gravitational fragmentation and the formation of multiple systems. We derive a criterion that predicts whether a rigidly rotating core having given M_O, R_O and Ω_O will produce a protostellar disc which fragments whilst material is still infalling from the core envelope. We then apply this criterion to core samples for which M_O, R_O and Ω_O have been estimated observationally. We conclude that the observed cores are stable against fragmentation at this stage, due to their low angular speeds and the heat delivered at the accretion shock where the infalling material hits the disc.
description: 13 pages, 10 figures, 1 table. Major revision. Accepted for publication in MNRAS
Deep learning head pose estimation for soccer head impact measurement from high speed video
Creators: name: Aston, Thomas
name: Tierney, Gregory
name: Teixeira-Dias, Filipe
Publisher: name: Loughborough University
Year: 2024

description: Engineering of Sport 15 - Proceedings from the 15th International Conference on the Engineering of Sport (ISEA 2024)
Deep learning computer vision algorithms have successfully been adopted to automatically detect the occurrence of head impact in soccer in a large-scale broadcast video dataset. However, to achieve estimation of human kinematics directly from video, accurate player tracking is required. Deep learning human pose estimation has been researched extensively in the field of computer vision, and its application to full body kinematics measurement in sport has been proposed. The present work adopts a previously proposed markerless approach to angular head kinematics measurement in sport, which utilizes deep learning facial landmark detection algorithms to extract kinematics using head pose estimation (HPE).
Masers associated with high-mass star formation regions in the Large Magellanic Cloud
Creators: name: Ellingsen, S. P.
name: Breen, S. L.
name: Caswell, J. L.
name: Quinn, L. J.
name: Fuller, G. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the results of a sensitive search for 12.2 GHz methanol maser emission towards a sample of eight high-mass star formation regions in the Large Magellanic Clouds which have been detected in other maser transitions. We detected one source towards the star formation region N105a. This is the first detection of a 12.2 GHz methanol maser outside our Galaxy. We also made near-contemporaneous observations of the 6.7 GHz methanol and 22 GHz water masers towards these sources, resulting in the detection of water maser emission in six new sources, including one associated with the strongest 6.7 GHz maser in the Magellanic Clouds IRAS 05011-6815. The majority of the maser sources are closely associated with objects identified as likely Young Stellar Objects (YSO) on the basis of Spitzer Space Telescope observations. We find that the YSOs associated with masers tend to be more luminous and have redder infrared colours than the sample as a whole. SED modeling of the YSOs shows that the masers are associated with sources of higher central mass, total luminosity and ambient density than the majority of YSOs in the LMC. This is consistent with the well-established relationship between luminous methanol and water masers and young, high-mass objects observed in the Galaxy.
description: 15 pages, 10 figures, accepted for publication in MNRAS
Monitoraggio di residui di pesticidi in ortofrutta in pre-raccolta (Serie storica 2007-2016) Focus sull’Emilia-Romagna
Creators: name: Blasioli, Sonia
name: Buscaroli, Enrico
name: Di Prodi, Katia
name: Braschi, Ilaria
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2021
Subjects: AGR/13 Chimica agraria

description: La valutazione del rischio ambientale e alimentare hanno rappresentato un ruolo centrale nel raggiungimento degli obiettivi stabiliti dalla strategia della Commissione Europea nel programma Europa 2020 e costituiscono uno dei capisaldi dell’attuale strategia Horizon Europe. La collaborazione fra enti pubblici, società scientifiche e privati rappresenta il core delle nuove strategie per raggiungere l’obiettivo della sicurezza ambientale e alimentare con un focus sulla salute, come anche indicato dalla FAO e dall’OMS. Accanto ai numerosi e stringenti controlli sulla qualità dei prodotti ortofrutticoli alla vendita, oltre 10000 campioni anno in Italia, esistono i controlli dei produttori e delle catene della grande distribuzione organizzata (GDO) che non sono mai pubblici. Questo report, edito dal Dipartimento di Scienze Tecnologie Agro-alimentari dell’Università di Bologna, presenta proprio questi dati, in gergo chiamati “grigi”. Questa trattazione rappresenta un primo passo, un unicum, grazie alla collaborazione tra una società scientifica, il GRIFA, e una società privata, Conserve Italia, che mette a disposizione milioni di dati residuali di prodotti fitosanitari in derrate alimentari in pre-raccolta per fare una valutazione statistica dell’andamento nazionale del loro utilizzo in un arco temporale molto ampio, che permetta di comprendere come l’agricoltura si sia adattata ai cambiamenti normativi, di costume e climatici. Un lavoro complesso che gli autori hanno affrontato con tenacia e dedizione, trovando la chiave scientifica per una corretta e oggettiva interpretazione.
title: Pinturas. Raquel Aguilar 2012
title: Catálogo de la exposición en el Matadero de Godella del 17 al 29 de agosto de 2012
titleType: AlternativeTitle
Creators: name: Aguilar Alonso, Raquel
name: Concejalía de Juventud. Ayuntamiento de Godella
Publisher: name: Zenodo
Year: 2012

description: Catálogo de la exposición "Pinturas 2012. Raquel Aguilar" en el Matadero de Godella, del 17 al 29 de agosto de 2012. Concejalía de Juventud, Ayuntamiento de Godella.

La publicación reúne las últimas obras realizadas por la pintora y expuestas en la Sala del Matadero con motivo de la celebración de las Jornadas culturales organizadas por la Asociación "La burra Vella."  

El catálogo se estructura en tres partes principlaes, la primera reúne los óleos, la segunda, los dibujos con la incursión de un pastel de gran formato y la tercera, las fotografías de Sala. Por último se incorpora un peqeuño curriculum vitae de la autora.

Si bien la temática de la figura infantil continúa la de series anteriores, en esta exposición aparece la figura adulta y el paisaje adquiere una importancia especial. Por lo demás, cabe destacar la presencia de los dibujos, que suponen una parte significativa de la exposición y no como bocetos de otras obras.
Long-term Dynamics of the Electron-nuclear Spin System of a Semiconductor Quantum Dot
Creators: name: Merkulov, I. A.
name: Alvarez, G.
name: Yakovlev, D. R.
name: Schulthess, T. C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A quasi-classical theoretical description of polarization and relaxation of nuclear spins in a quantum dot with one resident electron is developed for arbitrary mechanisms of electron spin polarization. The dependence of the electron-nuclear spin dynamics on the correlation time $τ_c$ of electron spin precession, with frequency $Ω$, in the nuclear hyperfine field is analyzed. It is demonstrated that the highest nuclear polarization is achieved for a correlation time close to the period of electron spin precession in the nuclear field. For these and larger correlation times, the indirect hyperfine field, which acts on nuclear spins, also reaches a maximum. This maximum is of the order of the dipole-dipole magnetic field that nuclei create on each other. This value is non-zero even if the average electron polarization vanishes. It is shown that the transition from short correlation time to $Ωτ_c>1$ does not affect the general structure of the equation for nuclear spin temperature and nuclear polarization in the Knight field, but changes the values of parameters, which now become functions of $Ωτ_c$. For correlation times larger than the precession time of nuclei in the electron hyperfine field, it is found that three thermodynamic potentials ($χ$, $\bmξ$, $ς$) characterize the polarized electron-nuclear spin system. The values of these potentials are calculated assuming a sharp transition from short to long correlation times, and the relaxation mechanisms of these potentials are discussed. The relaxation of the nuclear spin potential is simulated numerically showing that high nuclear polarization decreases relaxation rate.
description: RevTeX 4, 12 pages, 9 figures
title: Retired or Fired: How Can Investors Tell if a CEO Was Pressured to Leave?
Creators: name: Gow, Ian D.
name: Larcker, David F.
name: Tayan, Brian
Publisher: name: Corporate Governance Research Initiative
Year: 2017

description: CEO succession at many companies occurs in a black box. Shareholders are not privy to boardroom discussions prior to the announcement of a CEO departure, and press releases announcing the change contain boilerplate language that does not make it clear whether the CEO stepped down voluntary or was forced to resign. In this Closer Look, we examine a model — called the Push-out Score that combines observable factors with human evaluation of circumstantial evidence to estimate the likelihood that a CEO was asked to leave. We ask: How accurate is this model and does it provide better insight into whether a CEO was fired? Can this model be used to evaluate the relation between CEO turnover and performance? Can it be used to assess governance quality? Should companies that receive a moderate score take more effort to clarify for investors whether the CEO left voluntarily?
Side-jumps in the spin-Hall effect: construction of the Boltzmann collision integral
Creators: name: Culcer, Dimitrie
name: Hankiewicz, E. M.
name: Vignale, Giovanni
name: Winkler, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a systematic derivation of the side-jump contribution to the spin-Hall current in systems without band structure spin-orbit interactions, focusing on the construction of the collision integral for the Boltzmann equation. Starting from the quantum Liouville equation for the density operator we derive an equation describing the dynamics of the density matrix in the first Born approximation and to first order in the driving electric field. Elastic scattering requires conservation of the total energy, including the spin-orbit interaction energy with the electric field: this results in a first correction to the customary collision integral found in the Born approximation. A second correction is due to the change in the carrier position during collisions. It stems from the part of the density matrix off-diagonal in wave vector. The two corrections to the collision integral add up and are responsible for the total side-jump contribution to the spin-Hall current. The spin-orbit-induced correction to the velocity operator also contains terms diagonal and off-diagonal in momentum space, which together involve the total force acting on the system. This force is explicitly shown to vanish (on the average) in the steady state: thus the total contribution to the spin-Hall current due to the additional terms in the velocity operator is zero.
description: Added references, expanded discussion, revised introduction
Time evolution of the line emission from the inner circumstellar ring of SN 1987A and its hot spots
Creators: name: Groeningsson, Per
name: Fransson, Claes
name: Leibundgut, Bruno
name: Lundqvist, Peter
name: Challis, Peter
name: Chevalier, Roger A.
name: Spyromilio, Jason
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present seven epochs between October 1999 and November 2007 of high resolution VLT/UVES echelle spectra of the ejecta-ring collision of SN 1987A. The fluxes of most of the narrow lines from the unshocked gas decreased by a factor of 2-3 during this period, consistent with the decay from the initial ionization by the shock break-out. However, [O III] in particular shows an increase up to day ~6800. This agrees with radiative shock models where the pre-shocked gas is heated by the soft X-rays from the shock. The line emission from the shocked gas increases rapidly as the shock sweeps up more gas. We find that the neutral and high ionization lines follow the evolution of the Balmer lines roughly, while the intermediate ionization lines evolve less rapidly. Up to day ~6800, the optical light curves have a similar evolution to that of the soft X-rays. The break between day 6500 and day 7000 for [O III] and [Ne III] is likely due to recombination to lower ionization levels. Nevertheless, the evolution of the [Fe XIV] line, as well as the lines from the lowest ionization stages, continue to follow that of the soft X-rays, as expected. There is a clear difference in the line profiles between the low and intermediate ionization lines, and those from the coronal lines at the earlier epochs. This shows that these lines arise from regions with different physical conditions, with at least a fraction of the coronal lines coming from adiabatic shocks. At later epochs the line widths of the low ionization lines, however, increase and approach those of the high ionization lines of [Fe X-XIV]. The H-alpha line profile can be traced up to ~500 km/s at the latest epoch. This is consistent with the cooling time of shocks propagating into a density of (1-4)x10^4 cm-3.
description: 25 Pages, 12 Figures, accepted for publication in A&A
MPEC 2024-S111 : 2024 SO2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SO2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Naked-eye optical flash from GRB 080319B: Tracing the decaying neutrons in the outflow
Creators: name: Fan, Yi-Zhong
name: Zhang, Bing
name: Wei, Da-Ming
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: For an unsteady baryonic gamma-ray burst (GRB) outflow, the fast and slow proton shells collide with each other and produce energetic soft gamma-ray emission. If the outflow has a significant neutron component, the ultra-relativistic neutrons initially expand freely until decaying at a larger radius. The late time proton shells ejected from the GRB central engine, after powering the regular internal shocks, will sweep these $β-$decay products and give rise to very bright UV/optical emission. The naked-eye optical flash from GRB 080319B, an energetic explosion in the distant universe, can be well explained in this way.
description: 4 pages, accepted for publication in Phys. Rev. D as a Rapid Communication
A study of electrically driven standing waves on fluid surfaces
Creators: name: Ionides, George Nicos
Publisher: name: University of British Columbia
Year: 2011

description: The properties of standing surface waves on conducting liquids (mercury and water) have been studied in conditions where the waves are excited by electric fields applied normally to the free surface of the fluids. The fields are spatially non-uniform, static and periodic in time. The amplitudes on mercury were measured by observing the shift of the resonant frequency of a microwave resonator containing the mercury; an optical technique was used for water. Both methods permit wave amplitudes to be measured to an accuracy of 5 x 10⁻⁴cm. The decrease of frequency of small amplitude (~0.005 cm), linearized waves has been examined for mercury in a cylindrical container, as a function of the strength of an applied electrostatic field. The results are in close agreement with an appropriately modified uniform field theory. Observations on the damping of surface waves show that strong electrostatic fields (up to 55 kV/cm) do not affect the boundary layer structure at the fluid surface. Single surface wave modes- have been excited by applying electric stresses at the displacement antinodes of a desired mode, and setting the period of the applied stress equal to the natural mode period. When the surface mode amplitude becomes comparable to the mean distance from the field applying electrode to the fluid surface, the driving force depends on the wave amplitude, and is non-linear. The non-linearity produces an overstable surface. New stability criteria are formulated, which agree well with observations. Non-linear mixing of surface modes on shallow water has also been studied, and the exchange of energy among surface modes conclusively demonstrated. Viscous dissipation was taken as the amplitude limiting factor, and the results are in good agreement with theory.
Companion forms for unitary and symplectic groups
Creators: name: Gee, Toby
name: Geraghty, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F33

description: We prove a companion forms theorem for ordinary n-dimensional automorphic Galois representations, by use of automorphy lifting theorems developed by the second author, and a technique for deducing companion forms theorems due to the first author. We deduce results about the possible Serre weights of mod l Galois representations corresponding to automorphic representations on unitary groups. We then use functoriality to prove similar results for automorphic representations of GSp4 over totally real fields.
description: 40 pages
Room temperature ferromagnetic-like behavior in Mn-implanted and post-annealed InAs layers deposited by Molecular Beam Epitaxy
Creators: name: Gonzalez-Arrabal, R.
name: Gonzalez, Y.
name: Gonzalez, L.
name: Garcia-Hernandez, M.
name: Munnik, F.
name: Martin-Gonzalez, M. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report on the magnetic and structural properties of Ar and Mn implanted InAs epitaxial films grown on GaAs (100) by Molecular Beam Epitaxy (MBE) and the effect of Rapid Thermal Annealing (RTA) for 30 seconds at 750C. Channeling Particle Induced X- ray Emission (PIXE) experiments reveal that after Mn implantation almost all Mn atoms are subsbtitutional in the In-site of the InAs lattice, like in a diluted magnetic semiconductor (DMS). All of these samples show diamagnetic behavior. But, after RTA treatment the Mn-InAs films exhibit room-temperature magnetism. According to PIXE measurements the Mn atoms are no longer substitutional. When the same set of experiments were performed with As as implantation ion all of the layers present diamagnetism without exception. This indicates that the appearance of room-temperature ferromagnetic-like behavior in the Mn-InAs-RTA layer is not related to lattice disorder produce during implantation, but to a Mn reaction produced after a short thermal treatment. X-ray diffraction patterns (XRD) and Rutherford Back Scattering (RBS) measurements evidence the segregation of an oxygen deficient-MnO2 phase (nominally MnO1.94) in the Mn-InAs-RTA epitaxial layers which might be on the origin of room temperature ferromagnetic-like response observed.
description: 16 pages, 5 figures. Acepted in J. Appl. Phys
New methods for the synthesis of nitrogen containing, biologically relevant small molecules
Creators: name: Howard, JK
Publisher: name: University Of Tasmania
Year: 2023

description: The following thesis consists of two independent parts, both linked by a common theme of developing new methods for the synthesis of small nitrogen containing molecules. The first part is titled the oxidative dearomatisation of pyrrole, while the second part is titled the strain driven rearrangement of cyclopropenyl trichloroacetimidates. The oxidation of pyrrole typically leads to uncontrolled polymerisation and decomposition, however it was postulated that under appropriate reaction conditions the controlled oxidation of pyrrole to 2-pyrrolinone would be possible. Thus, the controlled oxidation of electron rich pyrroles was achieved in good to excellent yields with the hypervalent iodine oxidant Dess‚Äöv†v¿Martin periodinane, and also its synthetic precursor 2-iodoxybenzoic acid (IBX). The sensitized photo-oxidation of pyrrole was also examined by utilizing the narrow spectrum light emission from LEDs. This led to an optimised method for the photo-oxidation of a range of pyrroles to produce 2-pyrrolinones in good to high yields; a result that was only possible due to limiting the absorbance of light by pyrrole and selectively exciting the dye sensitizer for the oxidation. The products from the methods of controlled pyrrole oxidation have been used in an initial study towards the total synthesis of pyrrolidine alkaloid natural products including preussin, codonopsinine and crispine A. Nitrogen-substituted benzylidene cyclopropanes were prepared by a strain-driven Overman rearrangement of cyclopropenyl trichloroacetimidates in good to excellent yields. This methodology demonstrates the first rearrangement of a cyclopropene to an alkylidenecyclopropane with a nitrogen atom participant. The product benzylidene cyclopropanes were used as precursors to biologically relevant cyclopropyl ureas and saturated cyclopropanes.
title: Sojourn: A Time in Egypt
Creators: name: Miller, Deborah L.
Publisher: name: Old Dominion University Libraries
Year: 1989

description: This work is a chronicle of events and ideas experienced by the author while traveling in the Arab Republic of Egypt in December, 1986 and January, 1987. The illustrations at each chapter head were drawn to help the reader understand the nature of the story of each chapter.
title: CEO Talent: A Dime a Dozen, or Worth its Weight in Gold?
Creators: name: Donatiello, Nicholas E.
name: Larcker, David F.
name: Tayan, Brian
Publisher: name: Corporate Governance Research Initiative
Year: 2017

description: Governance experts have vigorously debated the appropriateness of CEO compensation. And yet, very little effort has been made to understand the size, quality, and efficiency of the labor market for CEO talent, which is a key determinant of pay. In this Closer Look, we review data collected from the directors of the largest 250 companies in the U.S. that suggests that the labor market for outstanding CEO talent is significantly tighter and more competitive than many governance experts realize. We ask: Why hasn’t more attention been paid to the size and quality of the CEO labor market? What factors limit this market? How does the size of the labor market influence compensation, performance evaluation, succession planning, and talent development? How does the size of the CEO labor market vary with company size?
W_L W_L Scattering in Higgsless Models: Identifying Better Effective Theories
Creators: name: Belyaev, Alexander S.
name: Chivukula, R. Sekhar
name: Christensen, Neil D.
name: Simmons, Elizabeth H.
name: He, Hong-Jian
name: Kurachi, Masafumi
name: Tanabashi, Masaharu
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The three-site model has been offered as a benchmark for studying the collider phenomenology of Higgsless models. In this paper we analyze how well the three-site model performs as a general exemplar of Higgsless models in describing W_L W_L scattering, and which modifications can make it more representative. We employ general sum rules relating the masses and couplings of the Kaluza-Klein (KK) modes of the gauge fields in continuum and deconstructed Higgsless models as a way to compare the different theories. We show that the size of the four-point vertex for the (unphysical) Nambu-Goldstone modes and the degree to which the sum rules are saturated by contributions from the lowest-lying KK resonances both provide good measures of the extent to which a highly-deconstructed theory can accurately describe the low-energy physics of a continuum 5d Higgsless model. After comparing the three-site model to flat and warped continuum models, we analyze extensions of the three-site model to a longer open linear moose with an additional U(1) group and to a ring ("BESS' or "hidden local symmetry") model with three sites and three links. Both cases may be readily analyzed in the framework of the general sum rules. We demonstrate that W_L W_L scattering in the ring model can very closely approximate scattering in the continuum models, provided that the hidden local symmetry parameter `a' is chosen to mimic rho-meson dominance of pion-pion scattering in QCD. The hadron and lepton collider phenomenology of both extended models is briefly discussed, with a focus on the complementary information to be gained from precision measurements of the Z' line shape and ZWW coupling at a high-energy lepton collider.
description: 35 pages, 11 figures. References added
Additional file 1 of Regulatory T cells in tumor microenvironment: new mechanisms, potential therapeutic strategies and future prospects
Creators: name: Li, Chunxiao
name: Jiang, Ping
name: Wei, Shuhua
name: Xu, Xiaofei
name: Wang, Junjie
Publisher: name: figshare
Year: 2020
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1.
Disaster response and adaptation to climate change in Fiji and Tonga : remote island perspectives
Creators: name: Johnston, IC
Publisher: name: University Of Tasmania
Year: 2023

description: In the South Pacific, an area prone to disasters of many kinds, tropical cyclones are predicted to increase in strength, track length and lifespan due to climate change. Small island developing states are going to need to adapt their disaster response accordingly. This is particularly the case for those communities on outer islands of these states, the remote islands within remote countries, where vulnerability is already especially high. These communities are out of reach of many aid organisations, and are required to be more selfreliant and resilient than most. This thesis investigates how the responses to disasters on remote islands need to change and the factors affecting the capacity for this to happen. The research focuses on remote islands in Fiji and Tonga, from the perspectives of the communities, aid organisations and governments. It examines issues of the growth of aid, the expectations it creates, the governance of the aid system, and how remoteness impacts on disaster planning and response. The research involved fieldwork in Fiji and Tonga, with stays on one remote island in each country. Both of these islands have a history of cyclones, including recent experience. This was followed by time in the regional and national capitals interviewing representatives of aid organisations and government. Included in the thesis is a reflection on the experience of doing cross-cultural research and the importance of giving voice to communities that are often left out of this kind of research. The research found that a number of variables ‚Äö- such as remoteness, the highly gendered structures of decision-making, differential use of traditional knowledge, and contradictory aid expectations ‚Äö- directly and indirectly affect the preparedness and adequacy of remote island responses to natural disasters such as cyclones. This has a number of significant ramifications in the light of predicted transformations associated with climate change.
Solar Magnetic Field Signatures in Helioseismic Splitting Coefficients
Creators: name: Baldner, Charles S.
name: Antia, H. M.
name: Basu, Sarbani
name: Larson, T. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Normal modes of oscillation of the Sun are useful probes of the solar interior. In this work, we use the even-order splitting coefficients to study the evolution of magnetic fields in the convection zone over solar cycle 23, assuming that the frequency splitting is only due to rotation and a large scale magnetic field. We find that the data are best fit by a combination of a poloidal field and a double-peaked near-surface toroidal field. The toroidal fields are centered at r=0.999R_solar and r=0.996R_solar and are confined to the near-surface layers. The poloidal field is a dipole field. The peak strength of the poloidal field is 124 +/- 17G. The toroidal field peaks at 380 +/- 30G and 1.4 +/- 0.2kG for the shallower and deeper fields respectively. The field strengths are highly correlated with surface activity. The toroidal field strength shows a hysteresis-like effect when compared to the global 10.7 cm radio flux. The poloidal field strength shows evidence of saturation at high activity.
description: 10 pages, accepted for publication in ApJ
Comparing Simulation Output Accuracy of Discrete Event and Agent Based Models: A Quantitive Approach
Creators: name: Majid, Mazlina Abdul
name: Aickelin, Uwe
name: Siebers, Peer-Olaf
Publisher: name: arXiv
Year: 2010
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: In our research we investigate the output accuracy of discrete event simulation models and agent based simulation models when studying human centric complex systems. In this paper we focus on human reactive behaviour as it is possible in both modelling approaches to implement human reactive behaviour in the model by using standard methods. As a case study we have chosen the retail sector, and here in particular the operations of the fitting room in the women wear department of a large UK department store. In our case study we looked at ways of determining the efficiency of implementing new management policies for the fitting room operation through modelling the reactive behaviour of staff and customers of the department. First, we have carried out a validation experiment in which we compared the results from our models to the performance of the real system. This experiment also allowed us to establish differences in output accuracy between the two modelling methids. In a second step a multi-scenario experiment was carried out to study the behaviour of the models when they are used for the purpose of operational improvement. Overall we have found that for our case study example both discrete event simulation and agent based simulation have the same potential to support the investigation into the efficiency of implementing new management policies.
description: 8 pages, 8 Figures, 5 Tables, Summer Computer Simulation Conference (SCSC 2009), Istambul, Turkey