cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geometry and space-time extent of pion emission region at FCC energies
Creators: name: Okorokov, V. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The energy dependence is investigated for a wide set of space-time characteristics derived from Bose - Einstein correlations of secondary pion pairs produced in proton-proton and nucleus-nucleus interactions. Analytic functions suggested for smooth approximations of the energy dependence of emission region parameters demonstrate reasonable agreement with all available experimental results for proton-proton collisions while the approximations correspond to most of experimental data for nucleus-nucleus collisions at energies above 5 GeV. Estimations for a wide set of space-time quantities are obtained for energies for the Future Circular Collider (FCC) project based on the smooth approximations. The space particle densities at freeze-out are derived also from estimations for the volume of the emission region and for total multiplicity at FCC energies. Estimations for charged particle density and its critical value allow the possibility of lasing behavior for secondary pions in nucleus-nucleus collisions at FCC energy. The mathematical formalism is presented for study of the peak shape of correlation function for general case of central-symmetrical Levy - Feldheim distribution.
description: 12 pages, 6 figures, 2 tables. 2-d Annual Meeting of the Future Circular Collider study Rome, 11-15 April 2016
Mass causality blood transfusion preparedness and appropriate clinical use by public government hospitals in Addis Ababa, Ethiopia; a qualitative study
Creators: name: Worku, Biniyam
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Background: The importance for assessing hospital blood transfusion preparedness is becoming significant as a first line of mass causality preparedness, due to increasing number of mass causality phenomenon globally. Transfusion support is a key enabler to the response to mass casualty events. Transfusion demand and capability planning should be an integrated part of the medical planning process for emergency system preparedness. Objective: To assess mass causality blood transfusion preparedness and appropriate clinical use of blood by public government hospitals in Addis Ababa, Ethiopia 2017. Method: A qualitative research method with content analysis approach was followed. The study was conducted from April 01-30/2018 at selected public government hospitals in Addis Ababa. Using purposive sampling method, key informants which include staffs working at mini blood bank service and hospitals administration body from each hospital were recruited basically until the information is saturated with maximum of 22 participants. Data was collected by in-depth interview using semi-structured interview guides. Notes and audio recording was used to take data and then it was transcribed verbatim and translated. Open code software version 4.02 was used for coding and further analysis. Trustworthiness was assured by strictly following the basic qualitative study principles. Result; Majority of the study participants don't have the information about mass causality blood transfusion preparedness. There are no real preparedness activities because there is shortage of blood for regular scheduled transfusion. The blood ordering process is not standardized in the transfusing hospitals. This is evidenced by suboptimal documentation of the blood ordering processes. There are no structural and operational blood order guidelines being followed in any of the transfusing hospitals. Conclusion The number of life-threatening injuries shows an increasing trend recently. And so the notion of precious blood gets into a focus of attention. So hospitals in Addis Ababa need mass causality blood transfusion preparedness. There was substantial variation in the appropriate transfusion practices across public government hospitals and appropriateness was influenced by the department stuffs because of lack of training on the appropriate clinical use of blood and poor facilitation of the hospitals .Key words;-mass causality, appropriate clinical use of blood, content analysis
A Measurement of Radius Inflation in the Pleiades and its Relation to Rotation and Lithium Depletion
Creators: name: Somers, Garrett
name: Stassun, Keivan G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Precise measurements of eclipsing binary parameters and statistical studies of young clusters have suggested that some magnetically active low-mass dwarfs possess radii inflated by $\sim$5-15% relative to theoretical expectations. If true, this effect should be pronounced in young open clusters, due to the rapid rotation and strong magnetic activity of their most extreme members. We explore this possibility by determining empirical radii for 83 members of the nearby Pleiades open cluster, using spectral energy distribution fitting to establish $\mathcal{F}_{bol}$ with a typical accuracy of $\approx$3\% together with color and spectro-photometric indices to determine $T_{\rm eff}$. We find several Pleiades members with radii inflated above radius-$T_{\rm eff}$ models from state-of-the-art calculations, and apparent dispersions in radii for the K-dwarfs of the cluster. Moreover, we demonstrate that this putative radius inflation correlates strongly with rotation rate, consistent with inflation of young stars by magnetic activity and/or starspots. We argue that this signal is not a consequence of starspot-induced color anomalies, binarity, or depth effects in the cluster, employing Gaia DR1 distances as a check. Finally, we consider the lithium abundances of these stars, demonstrating a triple correlation between rotation rate, radius inflation, and enhanced lithium abundance. Our result---already significant to $\sim$99.99% confidence---provides strong support for a magnetic origin of the inflated radii and lithium dispersion observed in young, low-mass stars.
description: 33 pages, 25 figures, accepted to AJ
Modeling the chemical enrichment history of the Bulge Fossil Fragment Terzan 5
Creators: name: Romano, Donatella
name: Ferraro, Francesco R.
name: Origlia, Livia
name: Zwart, Simon Portegies
name: Lanzoni, Barbara
name: Crociati, Chiara
name: Massari, Davide
name: Dalessandro, Emanuele
name: Mucciarelli, Alessio
name: Rich, R. Michael
name: Calura, Francesco
name: Matteucci, Francesca
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Terzan 5 is a heavily obscured stellar system located in the inner Galaxy. It has been postulated to be a stellar relic, a Bulge Fossil Fragment witnessing the complex history of the assembly of the Milky Way bulge. In this paper, we follow the chemical enrichment of a set of putative progenitors of Terzan 5 to assess whether the chemical properties of this cluster fit within a formation scenario in which it is the remnant of a primordial building block of the bulge. We can explain the metallicity distribution function and the runs of different element-to-iron abundance ratios as functions of [Fe/H] derived from optical-infrared spectroscopy of giant stars in Terzan 5, by assuming that the cluster experienced two major star formation bursts separated by a long quiescent phase. We further predict that the most metal-rich stars in Terzan 5 are moderately He-enhanced and a large spread of He abundances in the cluster, Y = 0.26-0.335. We conclude that current observations fit within a formation scenario in which Terzan 5 originated from a pristine, or slightly metal-enriched, gas clump about one order of magnitude more massive than its present-day mass. Losses of gas and stars played a major role in shaping Terzan 5 the way we see it now. The iron content of the youngest stellar population is better explained if the white dwarfs that give rise to type Ia supernovae (the main Fe factories) sink towards the cluster center, rather than being stripped by the strong tidal forces exerted by the Milky Way in the outer regions.
description: 14 pages, 2 tables, 8 figures, accepted for publication in ApJ
Elektron-Elektron-Wechselwirkung in Halbleitern
Creators: name: Lövenich, Reinhold
Publisher: name: Universität Dortmund
Year: 2000
Subjects: subject: Biexzitonen
subject: density matrix
subject: Dichtematrixtheorie
subject: electron-electron interaction
subject: Elektron-Phonon-Wechselwirkung
subject: Exzitonen
subject: greens function
subject: Greens-Funktion
subject: Halbleiter
subject: hetero-structure
subject: Heterostruktur
subject: incoherent transport
subject: Nichtgleichgewicht
subject: Nichtlineare Optik
subject: non-equilibrium
subject: optical excitation
subject: Optische Anregung
subject: strong correlated coherent initial states
subject: system
subject: theory
subject: Tunnelbarriere
subject: 530

description: In der vorliegenden Arbeit wird die Nichtgleichgewichts-Vielteilchen-Dynamik in verschiedenen niederdimensionalen Halbleitersystemen untersucht. Dabei wird besonders auf die Unterschiede zwischen kohärenter und inkohärenter Dynamik eingegangen. Als Beispiel eines Systems mit anfänglich kohärenter Dynamik wird ein optisch angeregter Halbleiter in einem starken Magnetfeld untersucht. Im Rahmen einer Dichtematrix-Theorie kann gezeigt werden, dass die vom Laserlicht aufgeprägte Kohärenz zur Ausbildung hochkorrelierter Zustände führt und daher die Berücksichtigung von exzitonischen und biexzitonischen Korrelationsfunktionen in der Theorie notwendig ist, um Ergebnisse nichtlinearer optischer Experimente qualitativ und quantitativ zu beschreiben. Bei der Ableitung der Bewegungsgleichungen wird auch der Zusammenhang der Dichtematrix-Theorie mit den Nichtgleichgewichts-Greenschen-Funktionen diskutiert, insbesondere im Hinblick auf die Integration biexzitonischer Korrelationen. Die inkohärente Vielteilchendynamik wird anhand des elektronischen Transportes in Halbleiterheterostrukturen diskutiert. Ausgehend von detaillierten numerischen Untersuchungen zur Diskretisierung der Bewegungsgleichungen für die elektronische Verteilungsfunktion, kann gezeigt werden, dass die Berücksichtigung der Zeitabhängigkeit eine natürliche und effektive Möglichkeit bietet, Selbstkonsistenzbedingungen für das Potential und den Rand zu erfüllen. Ausserdem kann auf diese Weise die Elektron-LO-Phonon-Streuung als wichtigster Streuprozess bei niedrigen Ladungsdichten eingeschlossen werden.
Two-body non-leptonic heavy-to-heavy decays at NNLO in QCD factorization
Creators: name: Huber, Tobias
name: Kränkl, Susanne
name: Li, Xin-Qiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We evaluate in the framework of QCD factorization the two-loop vertex corrections to the decays $\bar{B}_{(s)}\to D_{(s)}^{(\ast)+} \, L^-$ and $Λ_b \to Λ_c^+ \, L^-$, where $L$ is a light meson from the set $\{π,ρ,K^{(\ast)},a_1\}$. These decays are paradigms of the QCD factorization approach since only the colour-allowed tree amplitude contributes at leading power. Hence they are sensitive to the size of power corrections once their leading-power perturbative expansion is under control. Here we compute the two-loop ${\cal O}(α_s^2)$ correction to the leading-power hard scattering kernels, and give the results for the convoluted kernels almost completely analytically. Our newly computed contribution amounts to a positive shift of the magnitude of the tree amplitude by $\sim 2$\%. We then perform an extensive phenomenological analysis to NNLO in QCD factorization, using the most recent values for non-perturbative input parameters. Given the fact that the NNLO perturbative correction and updated values for form factors increase the theory prediction for branching ratios, while experimental central values have at the same time decreased, we reanalyze the role and potential size of power corrections by means of appropriately chosen ratios of decay channels.
description: 38 pages, 5 tables, 4 figures. v2: Added explicit numbers for semi-leptonic rates that enter the factorization test, plus a few more minor adjustments. Matches version accepted by JHEP
Inflammatory markers and overall survival in older adults with cancer
Creators: name: Deal, A.M.
name: Muss, H.B.
name: Nyrop, K.A.
name: Nishijima, T.F.
name: Sanoff, H.K.
name: Lund, J.L.
Publisher: name: Elsevier Ltd
Year: 2019

description: Background: Our aim was to evaluate the prognostic impact of three inflammatory markers - neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR) and lymphocyte monocyte ratio (LMR) - on overall survival (OS) in older adults with cancer. Materials and Methods: Our sample includes 144 patients age ≥ 65 years with solid tumor cancer who completed a cancer-specific Geriatric Assessment (GA) from 2010 to 2014 and had pretreatment CBC with differential. NLR was dichotomized a previously reported cut-off value of 3.5, while PLR and LMR were dichotomized at the median. Cox proportional hazards models evaluated whether NLR, PLR and LMR were predictive of OS independent of covariates including a recently developed 3-item GA-derived prognostic scale consisting of (1) “limitation in walking several blocks” (2) “limitation in shopping” and (3) “≥ 5% unintentional weight loss in 6 months”. Results: Median age was 72 years, 53% had breast cancer, 27% had stage 4 cancer, 14% had Karnofsky Performance Status (KPS) < 80, 11% received less intensive than standard treatment for stage, and 39% had NLR > 3.5. In univariable analysis, higher NLR and PLR and lower LMR were significantly associated with worse OS. NLR remained a significant predictor of OS (HR = 2.16, 95% CI; 1.10–4.25, p =.025) after adjusting for cancer type, stage, age, KPS, treatment intensity, and the GA-derived prognostic scale. Conclusion: NLR > 3.5 is predictive of poorer OS in older adults with cancer, independent of traditional prognostic factors and the GA-derived prognostic scale.
TOI-1130: A photodynamical analysis of a hot Jupiter in resonance with an inner low-mass planet
Creators: name: Korth, J.
name: Gandolfi, D.
name: Šubjak, J.
name: Howard, S.
name: Ataiee, S.
name: Collins, K. A.
name: Quinn, S. N.
name: Mustill, A. J.
name: Guillot, T.
name: Lodieu, N.
name: Smith, A. M. S.
name: Esposito, M.
name: Rodler, F.
name: Muresan, A.
name: Abe, L.
name: Albrecht, S. H.
name: Alqasim, A.
name: Barkaoui, K.
name: Beck, P. G.
name: Burke, C. J.
name: Butler, R. P.
name: Conti, D. M.
name: Collins, K. I.
name: Crane, J. D.
name: Dai, F.
name: Deeg, H. J.
name: Evans, P.
name: Grziwa, S.
name: Hatzes, A. P.
name: Hirano, T.
name: Horne, K.
name: Huang, C. X.
name: Jenkins, J. M.
name: Kabáth, P.
name: Kielkopf, J. F.
name: Knudstrup, E.
name: Latham, D. W.
name: Livingston, J.
name: Luque, R.
name: Mathur, S.
name: Murgas, F.
name: Osborne, H. L. M.
name: Pallé, E.
name: Persson, C. M.
name: Rodriguez, J. E.
name: Rose, M.
name: Rowden, P.
name: Schwarz, R. P.
name: Seager, S.
name: Serrano, L. M.
name: Sha, L.
name: Shectman, S. A.
name: Shporer, A.
name: Srdoc, G.
name: Stockdale, C.
name: Tan, T. G.
name: Teske, J. K.
name: Van Eylen, V.
name: Vanderburg, A.
name: Vanderspek, R.
name: Wang, S. X.
name: Winn, J. N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The TOI-1130 is a known planetary system around a K-dwarf consisting of a gas giant planet, TOI-1130 c, on an 8.4-day orbit, accompanied by an inner Neptune-sized planet, TOI-1130 b, with an orbital period of 4.1 days. We collected precise radial velocity (RV) measurements of TOI-1130 with the HARPS and PFS spectrographs as part of our ongoing RV follow-up program. We perform a photodynamical modeling of the HARPS and PFS RVs, and transit photometry from the Transiting Exoplanet Survey Satellite (TESS) and the TESS Follow-up Observing Program. We determine the planet masses and radii of TOI-1130 b and TOI-1130 c to be Mb = 19.28 $\pm$ 0.97 M$_\oplus$ and Rb = 3.56 $\pm$ 0.13 R$_\oplus$, and Mc = 325.59 $\pm$ 5.59 M$_\oplus$ and Rc = 13.32+1.55-1.41 R$_\oplus$, respectively. We spectroscopically confirm TOI-1130 b that was previously only validated. We find that the two planets orbit with small eccentricities in a 2:1 resonant configuration. This is the first known system with a hot Jupiter and an inner lower mass planet locked in a mean-motion resonance. TOI-1130 belongs to the small yet increasing population of hot Jupiters with an inner low-mass planet that challenges the pathway for hot Jupiter formation. We also detect a linear RV trend possibly due to the presence of an outer massive companion.
description: 19 pages, Accepted to A&A
Analysis of neutrino interactions and search for neutral heavy particles with the front calorimeter of the NOMAD experiment
Creators: name: Geppert, Dirk
Publisher: name: Universität Dortmund
Year: 2001
Subjects: subject: Front calorimeter
subject: Frontkalorimeter
subject: Neutrale schwere Elementarteilchen
subject: Neutrale schwere Leptonen
subject: Neutral heavy leptons
subject: Neutral heavy particles
subject: Neutrino oscillation magnetic detector
subject: NOMAD
subject: NOMAD-Detektor
subject: Teilchendetektor
subject: 530

description: Der NOMAD-Detektor am CERN wurde für die Suche nach Tau-Neutrinos im CERN Breitband-Neutrino-Strahl, der hauptsächlich aus Myon-Neutrinos besteht, konzepiert. Neutrino-Wechselwirkungen im Front-Kalorimeter (FCAL) des Detektors der Datennahme-Perioden 1996-1998 wurden analysiert. Eine Suche nach schweren neutralen Leptonen (NHL) wurde durchgeführt, die in schwachen neutralen Myon-Neutrino Wechselwirkungen im FCAL-Target erzeugt werden und in Endzustände zerfallen, die ein Myon enthalten. Kein Anzeichen für die Existenz eines solchen Teilchen wurden gefunden. Die Ergebnisse wurden im Rahmen einer Theorie der Großen Vereinheitlichung (GUT) parametrisiert, in dem das schwere neutrale Lepton als Singulet unter der Gruppe des schwachen Isospins des Standard Models der Teilchenphysik vorhergesagt wird.
description: The NOMAD detector at CERN was designed for the appearance search of tau neutrinos in the CERN wide-band neutrino beam, predominantly composed of muon type neutrinos. Neutrino interactions in the front calorimeter (FCAL) of the detector accumulated during the 1996-1998 data taking periods have been analyzed. A search for muon type neutral heavy leptons (NHL) produced by neutral-current muon neutrino interactions in the FCAL target and decaying into final states including a muon has been conducted. No evidence for the existence of such a particle has been found. The results have been parametrized in terms of a Grand Unification Theory (GUT) NHL predicted to behave as a singlet under weak-isospin group of the Standard Model of particle physics.
Non-equilibrium dynamics of symmetry breaking and gauge fields in quantum field theory
Creators: name: Heitmann, Katrin
Publisher: name: Universität Dortmund
Year: 2000
Subjects: subject: Nichtgleichgewichtsdynamik
subject: Quantenfeldtheorie
subject: Phi 4 -Theorie
subject: Phi4-Theorie
subject: Eichtheorien
subject: Large-N-Approximation
subject: Renormierung
subject: Endliche Temperatur
subject: Numerische Berechnungen
subject: nonequilibrium dynamics
subject: quantum field theory
subject: Phi 4 -theory
subject: Phi4-theory
subject: Gauge theories
subject: large-n-approximation
subject: renormalization
subject: finite temperature
subject: numerical computations
subject: 530

description: Die vorliegende Arbeit beschäftigt sich mit Nichtgleichgewichtssystemen in der Quantenfeldtheorie. Im ersten Teil wird als einfaches Modell die Phi 4 ­Theorie untersucht. Es werden verschiedene Approximationen im Detail analysiert und verglichen. Es wird gezeigt, dass eine konsistente Renormierung in der one­loop­ und der large­N­Approximation möglich ist und die renormierten Gleichungen werden numerisch ausgewertet. Desweiteren werden verschiedene Effekte untersucht, die sich durch ungebrochene und gebrochene Symmetrie des Potentials ergeben. Hierbei zeigt sich, dass die zeitliche Entwicklung des Systems in der ungebrochenen Phase durch parametrische Resonanz bestimmt wird, während in der gebrochenen Phase Instabilitäten das System beeinflussen. Im zweiten Teil der Arbeit werden Eichtheorien näher untersucht. Hierbei werden zwei verschiedene Aspekte analysiert: zum einen das Problem der Eichinvarianz zum anderen die Auswirkung der neuen Freiheitsgrade auf die Dynamik des Systems. Zuerst wird eine allgemeine Analyse der auftretenden Moden im SU(2)­Higgs­Modell in der 't Hooft­ Hintergrund­Eichung vorgenommen. Es wird gezeigt, dass im statischen Fall der Blasennukleation eine Transformation existiert, die es erlaubt, eine eichparameterunabhängige one­loop­Korrektur zur Blasenentstehungsrate zu formulieren. Für ein dynamisches System gelingt es nicht, eine eichparameterunabhängige Bewegungsgleichung herzuleiten. Allerdings ergibt sich nach einer entsprechenden Transformation eine neue Mode­Gleichung, die der Coulomb­Eichung entspricht. Daher wird auch diese Eichung eingehend untersucht, renormiert und numerisch ausgewertet. Wie sich herausstellt, entspricht die Coulomb­Eichung einer eichinvarianten Formulierung des Systems, die von Boyanovsky et al. entwickelt wurde. Numerisch ergibt sich, dass der Einfluss der neuen Freiheitsgrade die Dynamik des Systems wesentlich ändert. Außderdem ergibt ein qualitativer Vergleich der Coulomb­Eichung mit der 't Hooft­Feynman­Eichung, dass sich das System in verschiedenen Eichungen gleich entwickelt. Insgesamt trägt die Arbeit dazu bei, technische Probleme bei der Formulierung von Systemen im Nichtgleichgewicht zu lösen und numerische Umsetzungen zu ermöglichen. Dies wurde nicht nur für einfache Theorien, wie die Phi 4 ­Theorie gezeigt, sondern auch für wesentlich komplexere Modelle. Somit trägt die Arbeit zu einem besseren Verständnis von dynamischen Problemen in der Quantenfeldtheorie bei.
Comparison of Antiretroviral Treatment outcomes for a General Hospital Versus that of Health Centers: a Retrospective Cohort Study in Southern – Central Oromia
Creators: name: Megerso, Abebe
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2010

description: Background: - Although antiretroviral treatment (ART) services scaling up is being practiced in the country since the last five years, documented evidence that shows the difference in the treatment outcomes between health center and hospital is not available. Objective: - To compare the survival rate and antiretroviral treatment outcome among ART naïve patients in a general hospital versus that of health centres and to assess determinants affecting the outcome in both settings. Design: - Retrospective cohort study supported by qualitative approach was conducted using secondary data from medical records of ART naïve patients collected between October 2006 and January 2010. The study compared the treatment outcome between health centers and a general hospital in southern central Oromia regional state. Univariate and multivariate analyses were implemented using Kaplan Meier and Cox proportional hazard models. Results: - A total of 1,895 (1307 hospital and 588 health center) patient records were followed for 27,990 person-month. During the study period 172 (9.1%) deaths and 235 (12.4%) lost to follow up (LTFU) were recorded. The incidence density of death among ART naïve patients was 6.2 per 100 person-months and incidence of LTFU was 8.4 per 1000 person per month of observation. Risks of death and LTFU from ART treatment were the same between health centre and hospital HIV/AIDS patients. Independent predictors of risk death and LTFU (failure) for both categories of patients include male sex; AHR 1.4 (95%CI 1.1, 1.7), baseline performance scale three/four; adjusted hazard ratio (AHR) 2.4 (95%CI 2.0, 3.0); advanced disease stage; AHR 2.8 (95%CI 2.3, 3.4), baseline WHO stage, AHR 1.3 (95%CI 1.0, 1.6) and fair to poor adherence to ART; AHR 3.4 (95%CI 2.8, 5.2). Other socio-demographic and baseline variables had no associated with risks. Conclusion and Recommendation: - The ART service scaling up to health centres did not compromise the treatment outcomes in adult ART naïve patients. Important predictors of risk of death and lose to follow up among HIV/AIDS patients on ART were having base line performance scale three/four, being male, having advanced disease and being fair to poor adherent to ART. Therefore, HIV/AIDS patients should be educated and encouraged to start the treatment in either facility as early as possible.
Information Content of the Angular Multipoles of Redshift-Space Galaxy Bispectrum
Creators: name: Gagrani, Praful
name: Samushia, Lado
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The redshift-space bispectrum (three point statistics) of galaxies depends on the expansion rate, the growth rate, and geometry of the Universe, and hence can be used to measure key cosmological parameters. In a homogeneous Universe the bispectrum is a function of five variables and unlike its two point statistics counterpart -- the power spectrum, which is a function of only two variables -- is difficult to analyse unless the information is somehow reduced. The most commonly considered reduction schemes rely on computing angular integrals over possible orientations of the bispectrum triangle, thus reducing it to sets of function of only three variables describing the triangle shape. We use Fisher information formalism to study the information loss associated with this angular integration. Without any reduction, the bispectrum alone can deliver constraints on the growth rate parameter $f$ that are better by a factor of $2.5$ compared to the power spectrum, for a sample of luminous red galaxies expected from near future galaxy surveys at a redshift of $z\sim0.65$. At lower redshifts the improvement could be up to a factor of $3$. We find that most of the information is in the azimuthal averages of the first three even multipoles. This suggests that the bispectrum of every configuration can be reduced to just three numbers (instead of a 2D function) without significant loss of cosmologically relevant information.
description: 7 pages, 2 figures
The syntheses of substituted oxygenated heterocycles and carbapenem antibiotic intermediates
Creators: name: Jones., Eric Dale
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The impact of the photon PDF and electroweak corrections on $t \bar t$ distributions
Creators: name: Pagani, Davide
name: Tsinikos, Ioannis
name: Zaro, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the impact of EW corrections on differential distributions in top-quark pair production at the LHC and future hadron colliders, focusing on the effects of initial-state photons. Performing a calculation at Next-to-Leading Order QCD+EW accuracy, we investigate in detail the impact of photon-initiated channels on central values as well as PDF and scale uncertainties, both at order $α_sα$ and $α_s^2α$. We present predictions at 13 and 100 TeV, and provide results for the 8 TeV differential measurements performed by ATLAS and CMS. A thorough comparison of results obtained with the NNPDF2.3QED and CT14QED PDF sets is performed. While contributions due to the photon PDF are negligible with CT14QED, this is not the case for NNPDF2.3QED, where such contributions are sizeable and show large PDF uncertainties. On the one hand, we show that differential observables in top-pair production, in particular top-quark and $t\bar t$ rapidities, can be used to improve the determination of the photon PDF within the NNPDF approach. On the other hand, with current PDF sets, we demonstrate the necessity of including EW corrections and photon-induced contributions for a correct determination of both the central value and the uncertainties of theoretical predictions.
description: 20 pages, 18 figures; it matches the version published in EPJ C
A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) XV. The Halpha luminosity function of the Virgo cluster
Creators: name: Boselli, A.
name: Fossati, M.
name: Cote, P.
name: Cuillandre, J. C.
name: Ferrarese, L.
name: Gwyn, S.
name: Amram, P.
name: Ayromlou, M.
name: Balogh, M.
name: Bellusci, G.
name: Boquien, M.
name: Gavazzi, G.
name: Hensler, G.
name: Longobardi, A.
name: Nelson, D.
name: Pillepich, A.
name: Roediger, J.
name: Sanchez-Jansen, R.
name: Sun, M.
name: Trinchieri, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use a complete set of deep narrow-band imaging data for 384 galaxies gathered during the VESTIGE survey to derive the first Halpha luminosity function (LF) of the Virgo cluster within R200. The data allow us to cover the whole dynamic range of the Halpha LF (10^3610^14 Mo. The comparison with the IllustrisTNG cosmological hydrodynamical simulations shows a more pronounced decrease at the faint end of the distribution. If Virgo is representative of typical nearby clusters of similar mass, this difference suggests that the stripping process in simulated galaxies in these environments is more efficient than observed.
description: Accepted for publication on A&A
Εθνοτικές και κοινωνικοοικονομικές ανισότητες κατά την εγκυμοσύνη. Η περίπτωση του επιπολασμού λοιμωδών νοσημάτων (HBV, HIC, σύφιλη) στην εγκυμοσύνη
Creators: name: Θεοδοσιάδου Κυράννα Ιωσήφ
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Μετανάστευση
Λοιμώδη Νοσήματα
Κοινωνικές ανισότητες
Immigration
Infectious diseases
Socioeconomic inequalities

description: Οι αυξημένες μεταναστευτικές και προσφυγικές ροές την τελευταία δεκαετία προκάλεσαν την όξυνση των κοινωνικοοικονομικών και εθνοτικών ανισοτήτων στη χώρα μας. Άξιος αναφοράς είναι και ο αντίκτυπος αυτών των ανισοτήτων στην υγεία των επίτοκών γυναικών. Ανατρέχοντας στην διεθνή βιβλιογραφία, διαπιστώθηκε ότι οι πρόσφυγες γυναίκες διατρέχουν υψηλότερο κίνδυνο κατά τη διάρκεια της εγκυμοσύνης λόγω της ελλιπούς παρακολούθησης που λαμβάνουν προγεννητικά. Ωστόσο, στην Ελλάδα η έρευνα σχετικά με την προγεννητική φροντίδα και τους παράγοντες κινδύνου στους οποίος εκτίθενται οι πρόσφυγες και οι μετανάστριες κατά την κύηση και τον τοκετό, είναι περιορισμένη. Βασικός σκοπός της παρούσας έρευνας αποτελεί η μελέτη του επιπολασμού λοιμωδών νοσημάτων μεταξύ Ελληνίδων, προσφύγων και μεταναστριών εγκύων που γέννησαν στο Νοσοκομείο «Παπαγεωργίου» (Ν. Παπαγεωργίου) κατά το χρονικό διάστημα από 2019-2020
description: The rise of migratory and refugee flows during the past decade has made the socioeconomic and ethnic inequalities more pronounced. The impact of these inequalities on the health of pregnant women is worth mentioning and examining. Studies have shown that women refugees are at greater risk during pregnancy because of limited medical attention received prior to the labor. However, in Greece the research data related to both prenatal care received and to possible risk factors, to which refugees and immigrants are exposed during pregnancy, are restricted. The aim of this study is to evaluate and compare the prevalence of infectious diseases among Greek, immigrant and refugee pregnant women who gave birth during a two-year period from 2019 to 2020, in the “Papageorgiou” General Hospital of Thessaloniki, Greece (G.H.Th Pageorgiou).
K2 Optical Emission from OJ 287 and Other Gamma-Ray Blazars on Hours-to-Weeks Timescales from 2014-2018
Creators: name: Wehrle, Ann E.
name: Carini, Michael
name: Wiita, Paul J.
name: Pepper, Joshua
name: Gaudi, B. Scott
name: Pogge, Richard W.
name: Stassun, Keivan G.
name: Villaneuva,, Steven
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present second observations by K2 of OJ~287 and 7 other $γ$-ray AGNs obtained in 2017-2018, second and third observations of the lobe-dominated, steep spectrum quasar 3C~207, and observations of 9 additional blazars not previously observed with K2. The AGN were observed simultaneously with K2 and the Fermi Large Area Telescope for 51-81 days. Our full sample, observed in 2014-2018, contained 16 BL Lac objects (BL Lacs), 9 Flat Spectrum Radio Quasars (FSRQs), and 4 other $γ$-ray AGNs. Twelve BL Lacs and 7 FSRQs exhibited fast, jagged light curves while 4 BL Lacs and 2 FSRQs had slow, smooth light curves. Some objects changed their red-noise character significantly between repeated K2 observations. The optical characteristics of OJ~287 derived from the short-cadence K2 light curves changed between observations made before and after the predicted passage of the suspected secondary supermassive black hole through the accretion disk of the primary supermassive black hole. The average slopes of the periodogram power spectral densities of the BL Lacs' and FSRQs' light curves differed significantly, by $\approx 12$\%, with the BL Lac slopes being steeper, and a KS test with a $p$-value of 0.039 indicates that these samples probably come from different populations; however, this result is not as strongly supported by PSRESP analyses. Differences in the origin of the jets from the ergosphere or accretion disk in these two classes could produce such a disparity, as could different sizes or locations of emission regions within the jets.
description: 35 pages, 8 figures. Accepted for publication in the Astrophysical Journal
Reject inference in consumer credit scoring with nonignorable missing data
Creators: name: Bücker, Michael
name: Krämer, Walter
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: Credit scoring
subject: Logistic regression
subject: Missing data
subject: Reject inference
subject: 310
subject: 330
subject: 620

description: We generalize an empirical likelihood approach to missing data to the case of consumer credit scoring and provide a Hausman test for nonignorability of the missings. An application to recent consumer credit data shows that our model yields parameter estimates which are significantly different (both statistically and economically) from the case where customers who were refused credit are ignored.
Determinants of Mothers' Treatment of Diarrhea in Under-Five Children
Creators: name: Olango, Petros
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 1989

description: The objective of the study was to identify the knowledge, attitude and practice concerning current diarrheal treatment by rural mothers. From 11 randomly selected peasant associations in Wolayta awraja, 6414 mothers were interviewed to determine whether they had children under five years of age and whether any child had diarrhea in the previous two-week period. The 654 mothers whose children had diarrhea were interviewed about their knowledge, attitudes and treatment practices for the current diarrhea using a structured questionnaire. The results showed that the prevalence of diarrhea in the study community was 11.1%; 73 of the diarrheal children died indicating a mortality rate of 11.4 per 1000 children under five years f or 2 weeks. home treatment of diarrheal cases, only 12.3% Concerning of mothers increased the amount of fluid gi ven, 19.9% increased or gave the same amount of food, and 20.5% gave ORS or ORT to the diarrheal child. Use of health institutions was found to be 7.3%. Determinants of treatment practices were: 1) mothers' knowledge about causes and consequences of diarrhea; and 2) nature of the chi ld' s diarrhea such as concurrent vomiting and frequency of the diarrhea in 24 hours. Mothers preferred to seek treatment from drug s hops than from health institutions despite the fact that the latter were nearer to their homes. The outcome of diarrhea was significantly associated with treatment practices.
Our mutual friend, no. 05
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Inheritance and succession
valueUri: http://id.worldcat.org/fast/973371
subject: Social classes
valueUri: http://id.worldcat.org/fast/1122346
subject: Social conflict
valueUri: http://id.worldcat.org/fast/1122378
subject: Families
valueUri: http://id.worldcat.org/fast/1728849

description: Last complete novel completed by Charles Dickens and is one of his most sophisticated works, combining savage satire with social analysis. In the opening chapters a body is found in the Thames and identified as that of John Harmon, a young man recently returned to London to receive his inheritance. Were he alive, his father's will would require him to marry Bella Wilfer, a beautiful, mercenary girl whom he had never met. Instead, the money passes to the working-class Boffins, and the effects spread into various corners of London society. Issued monthly from May 1864 to November 1865 in illustrated green paper covers. Chapters 14-17: Chapter 14. The bird of prey brought down -- Chapter 15. Two new servants -- Chapter 16. Minders and re-minders -- Chapter 17. A dismal swamp
Interaction field strength between a scalar particle and two massless vector bosons in presence of an external magnetic field
Creators: name: Jaber-Urquiza, Jorge
name: Sanchez, Angel
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we study the interaction strength among a neutral scalar boson and two massless vector bosons in presence of an external magnetic field. Based on global symmetries, we build the general tensor structure amplitude $\mathcal{M}^{μν}$, for the process $V^μ+V^ν\longrightarrowϕ$, in terms of the vector bosons polarization states. Then, we present a novel methodology to compute the one-loop amplitude contributions for an homogeneous magnetic field with arbitrary strength. With the obtained results, expressed in terms of integrals over Schwinger parameters, we explore its behavior in two regions, widely used in the literature, the strong and weak field strength regions. The methodology presented in this work can be employed to compute an arbitrary process in presence of an external magnetic field where the initial and final states are neutral.
Magnetar Flare-Driven Bumpy Declining Light Curves in Hydrogen-poor Superluminous Supernovae
Creators: name: Dong, Xiao-Fei
name: Liu, Liang-Duan
name: Gao, He
name: Yang, Sheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent observations indicate that hydrogen-poor superluminous supernovae often display bumpy declining light curves. However, the cause of these undulations remains unclear. In this paper, we have improved the magnetar model, which includes flare activities. We present a systematic analysis of a well-observed SLSNe-I sample with bumpy light curves in the late-phase. These SLSNe-I were identified from multiple transient surveys, such as the Pan-STARRS1 Medium Deep Survey (PS1 MDS) and the Zwicky Transient Facility (ZTF). Our study provides a set of magnetar-powered model light curve fits for five SLSNe-I, which accurately reproduce observed light curves using reasonable physical parameters. By extracting essential characteristics of both explosions and central engines, these fits provide valuable insights into investigating their potential association with gamma ray burst engines. We found that the SLSN flares tend to be the dim and long extension of the GRB flares in the peak luminosity versus peak time plane. Conducting large-scale, high cadence surveys in the near future could enhance our comprehension of both SLSN undulation properties and their potential relationship with GRBs by modeling their light curve characteristics.
description: 10 pages, 5 figures. Accepted for publication in the Astrophysical Journal
Strong lensing by fermionic dark matter in galaxies
Creators: name: Gómez, L. Gabriel
name: Argüelles, C. R.
name: Perlick, Volker
name: Rueda, J. A.
name: Ruffini, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It has been shown that a self-gravitating system of massive keV fermions in thermodynamic equilibrium correctly describes the dark matter (DM) distribution in galactic halos and predicts a denser quantum core towards the center of the configuration. Such a quantum core, for a fermion mass in the range of $50$ keV $\lesssim m c^2 \lesssim 345$ keV, can be an alternative interpretation of the central compact object in Sgr A*. We present in this work the gravitational lensing properties of this novel DM model in Milky Way-like spiral galaxies. We describe the lensing effects of the pure DM component both on halo scales, where we compare them to the effects of the Navarro-Frenk-White and the Non-Singular Isothermal Sphere DM models, and near the galaxy center, where we compare them with the effects of a Schwarzschild BH. For the particle mass leading to the most compact DM core, $m c^2\approx 10^{2}$ keV, we draw the following conclusions. At distances $r\gtrsim 20$ pc from the center of the lens the effect of the central object on the lensing properties is negligible. However, we show that measurements of the deflection angle produced by the DM distribution in the outer region at a few kpc, together with rotation curve data, could help to discriminate between different DM models. We show that at distances $\sim 10^{-4}$ pc strong lensing effects, such as multiple images and Einstein rings, may occur. Large differences in the deflection angle produced by a DM central core and a central BH appear at distances $r\lesssim 10^{-6}$ pc; in this regime the weak-field formalism is no longer applicable and the exact general-relativistic formula has to be used. We find that quantum DM cores do not show a photon sphere what implies that they do not cast a shadow. Similar conclusions apply to the other DM distributions for other fermion masses in the above specified range and for other galaxy types.
description: 10 pages, 8 figures. v2: Version published in PRD
Type II radio bursts and their association with coronal mass ejections in solar cycles 23 and 24
Creators: name: Kumari, Anshu
name: Morosan, Diana E.
name: Kilpua, E. K. J.
name: Daei, F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Metre wavelength type II solar radio bursts are believed to be the signatures of shock-accelerated electrons in the corona. Studying these bursts can give information about the initial kinematics, dynamics and energetics of CMEs in the absence of white-light observations. In this study, we investigate the occurrence of type II bursts in solar cycles 23 and 24 and their association with coronal mass ejections (CMEs). We also explore the possibility of occurrence of type II bursts in the absence of a CME. We performed statistical analysis of type II bursts that occurred between 200 - 25 MHz in solar cycle 23 and 24 and found the temporal association of these radio bursts with CMEs. We categorised the CMEs based on their linear speed and angular width, and studied the distribution of type II bursts with `fast' ($speed ~\geq 500 km/s$), `slow' ($speed ~< 500 km/s$), `wide' ($width ~\geq 60^o$) and `narrow' ($width ~< 60^o$) CMEs. We explored the type II bursts occurrence dependency with solar cycle phases. Our results suggest that type II bursts dominate at heights $\approx 1.7 - 2.3 \pm 0.3 ~R_{\odot}$ with a clear majority having an onset height around 1.7 $\pm 0.3~R_{\odot}$ assuming the four-fold Newkirk model. The results indicate that most of the type II bursts had a white-light CME counterpart, however there were a few type II which did not have a clear CME association. There were more CMEs in cycle 24 than cycle 24. However, the number of type II radio bursts were less in cycle 24 compared to cycle 23. The onset heights of type IIs and their association with wide CMEs reported in this study indicate that the early CME lateral expansion may play a key role in the generation of these radio bursts.
description: 17 pages, 8 figures, 4 tables, Accepted for publication in Astronomy & Astrophysics
A tensorial description of particle perception in black-hole physics
Creators: name: Barbado, Luis C.
name: Barceló, Carlos
name: Garay, Luis J.
name: Jannes, Gil
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In quantum field theory in curved backgrounds, one typically distinguishes between objective, tensorial, quantities such as the Renormalized Stress-Energy Tensor (RSET) and subjective, non-tensorial, quantities such as Bogoliubov coefficients which encode perception effects associated with the specific trajectory of a detector. In this work we propose a way to treat both objective and subjective notions on an equal tensorial footing. For that purpose, we define a new tensor which we will call the Perception Renormalized Stress-Energy Tensor (PeRSET). The PeRSET is defined as the subtraction of the RSET corresponding to two different vacuum states. Based on this tensor we can define perceived energy densities and fluxes. The PeRSET helps to have a more organized and systematic understanding of various results in the literature regarding quantum field theory in black hole spacetimes. We illustrate the physics encoded in this tensor by working out various examples of special relevance.
description: Minor corrections to match the published version. 11 pages, 5 figures
Noncancer mortality among adolescents and young adults with cancer
Creators: name: Anderson, C.
name: Olshan, A.F.
name: Nichols, H.B.
name: Weaver, M.A.
name: Lund, J.L.
name: Wood, W.A.
Publisher: name: John Wiley and Sons Inc.
Year: 2019

description: Background: Relative to the general population, cancer patients and survivors may have an elevated risk of mortality from noncancer causes, such as cardiovascular disease and infections, but few studies have examined rates of noncancer mortality among patients diagnosed as adolescents and young adults (AYAs) (ages 15-39 years). Methods: The Surveillance, Epidemiology, and End Results database was used to identify AYA patients who were diagnosed with a first malignant cancer between 1973 and 2015. Rates of mortality from noncancer causes among AYAs with cancer were compared with those in the general US population using standardized mortality ratios (SMRs), adjusted for age, sex, race, and calendar year. Results: Among 235,541 AYAs with cancer, a total of 12,948 deaths from noncancer causes occurred over 3.1 million total person-years of follow-up. Overall, noncancer mortality was significantly increased among AYAs with cancer relative to the general population (SMR, 1.84; 95% CI, 1.80-1.87). SMRs were particularly elevated for infectious diseases (SMR, 5.13; 95% CI, 4.95-5.32), cardiovascular disease (SMR, 1.55; 95% CI, 1.50-1.60), and renal diseases (SMR, 2.40; 95% CI, 2.12-2.71). These associations persisted for more than 20 years after cancer diagnosis. Cancer types associated with the highest SMRs for all noncancer mortality included leukemias (SMR, 5.26), Hodgkin lymphoma (SMR, 3.12), non-Hodgkin lymphoma (SMR, 6.33), central nervous system tumors (SMR, 3.38), head and neck cancers (SMR, 2.09), and cervical/uterine cancers (SMR, 2.03). Conclusions: AYAs with cancer have an elevated burden of mortality from noncancer causes that persists many years after cancer diagnosis, highlighting the importance of comprehensive, long-term follow-up care for noncancer conditions throughout survivorship.