cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discovery of the progenitor of the type Ia supernova 2007on
Creators: name: Voss, Rasmus
name: Nelemans, Gijs
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Type Ia supernovae are exploding stars that are used to measure the accelerated expansion of the Universe and are responsible for most of the iron ever produced. Although there is general agreement that the exploding star is a white dwarf in a binary system, the exact configuration and trigger of the explosion is unclear, which could hamper their use for precision cosmology. Two families of progenitor models have been proposed. In the first, a white dwarf accretes material from a companion until it exceeds the Chandrasekhar mass, collapses and explodes. Alternatively, two white dwarfs merge, again causing catastrophic collapse and an explosion. It has hitherto been impossible to determine if either model is correct. Here we report the discovery of an object in pre-supernova archival X-ray images at the position of the recent type Ia supernova (2007on) in the elliptical galaxy NGC 1404. Deep optical images (also archival) show no sign of this object. From this we conclude that the X-ray source is the progenitor of the supernova, which favours the accretion model for this supernova, although the host galaxy is older (6-9 Gyr) than the age at which the explosions are predicted in the accreting models.
description: Published in Nature See also the two follow-up papers: Roelofs, Bassa, Voss, Nelemans Nelemans, Voss, Roelofs, Bassa both on astro-ph 02/15/08
title: Η "αρχή της καλής πίστης" στη θαλάσσια ασφάλιση και η σχέση της με το ελληνικό δίκαιο
title: The principle of good faith in marine insurance and its relationship with Greek law
titleType: AlternativeTitle
Creators: name: Καπαθανασιάδης, Χαράλαμπος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Αρχή της καλής πίστης
subject: Θαλάσσια ασφάλιση

description: Η αρχή της υπέρτατης καλής πίστης η οποία προέρχεται από τον αγγλικό νόμο περί θαλάσσιας ασφάλισης θεωρείται σε διεθνές πλέον επίπεδο κομβικής σημασίας στο πλαίσιο του ασφαλιστικού δικαίου η οποία χαρακτηρίζει την ιδιαιτερότητα της ασφαλιστικής σύμβασης. Η ανάλυση της αρχής της υπέρτατης καλής πίστης, οδηγεί σε θεωρητική σύγκριση με την αρχή της καλής πίστης και έχει ιδιαίτερη πρακτική σημασία δεδομένου ότι στις ναυτασφαλιστικές συναλλαγές, κατά διεθνή συναλλακτική συνήθεια, επιλέγεται, από τους συμβαλλομένους ο αγγλικός νόμος για την θαλάσσια ασφάλιση με σχετική ρήτρα στους όρους ασφάλισης. Η παρούσα εργασία φιλοδοξεί να προσεγγίσει εννοιολογικά την «υπέρτατη καλή πίστη», οριοθετώντας την ως αυτοτελή αρχή του αγγλικού ασφαλιστικού δικαίου και να αποσαφηνίσει τις δογματικές της διαστάσεις σε σχέση με την αρχή της καλής πίστης, όπως αυτή είναι γνωστή στα ευρωπαϊκά ηπειρωτικά δίκαια της ιστορικής παράδοσης των αστικών κωδίκων.
Photoelectric heating effects on the evolution of luminous disk galaxies
Creators: name: Osman, Omima
name: Bekki, Kenji
name: Cortese, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Photoelectric heating (PEH) influences the temperature and density of the interstellar medium (ISM), and potentially also affecting star formation. PEH is expected to have a stronger effect on massive galaxies, as they host larger dust reservoirs compared to dwarf systems. Accordingly, in this paper, we study PEH effects in Milky Way-like galaxies using smoothed particle hydrodynamics (SPH) code which self-consistently implements the evolution of the gas, dust, and interstellar radiation field (ISRF). Dust evolution includes dust formation by stars, destruction by SNe, and growth in dense media. We find that PEH suppresses star formation due to the excess heating that reduces the ISM density. This suppression is seen across the entire range of gas fractions, star formation recipes, dust models, and PEH efficiencies investigated by our code. The suppression ranges from negligible values to approximately a factor of five depending on the specific implementation. Galaxy models having higher gas fraction experience higher star formation suppression. The adopted dust model also alters the extent of star formation suppression. Moreover, when PEH is switched on, galaxy models show higher gas outflow rates and have higher loading factors indicative of enhanced SNe feedback. In gas-rich models (i.e. a gas fraction of 0.5), we also find that PEH suppresses the formation of disk clumps via violent disk instabilities, and thus suppresses bulge formation via clumps migration to the central regions.
description: 15 pages, 12 figures, 4 tables, Accepted for publication in MNRAS
Operating Characteristics for Binary Hypothesis Testing in Quantum Systems
Creators: name: Medlock, Catherine
name: Oppenheim, Alan
name: Chuang, Isaac
name: Ding, Qi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Receiver operating characteristics (ROCs) are a well-established representation of the tradeoff between detection and false alarm probabilities in classical binary hypothesis testing. We use classical ROCs as motivation for two types of operating characteristics for binary hypothesis testing in quantum systems -- decision operating characteristics (QDOCs) and measurement operating characteristics (QMOCs). Both are described in the context of a framework we propose that encompasses the typical formulations of binary hypothesis testing in both the classical and quantum scenarios. We interpret Helstrom's well-known result regarding discrimination between two quantum density operators with minimum probability of error in this framework. We also present a generalization of previous results regarding the correspondence between classical Parseval frames and quantum measurements. The derivation naturally leads to a constructive procedure for generating many different measurements besides Helstrom's optimal measurement, some standard and others non-standard, that achieve minimum probability of error.
description: Presented at the 2019 Allerton Conference on Communication, Control, and Computing
Leveraging the Power of Community for Open Science
Creators: name: Hussein, Abdullahi Bihi
Publisher: name: SORER
Year: 2021
Subjects: Community
OpenScience
Somalia
SomaliREN
Open
Access

description: Abstract The collaborative networks that make open science possible are made of the people and organizations who actually produce and also consume open science. This is basically the essence of community and it has a far more significant potential than it seems to capitalize on. The continuity of the efforts to boost open science rests on strengthening the sense of community among the scientists and within the institutions. Three perspectives on the issue are presented in this discussion. The community as the foundation or platform for driving open science adoption perspective calls for the strategic structuring of communities in a hierarchically-organized manner but with less red-tape to not discourage innovation agility; the community as a producer-consumer perspective focuses on putting into effect rules and protocols for exchanging open science artifacts within the community modeling open source licenses; and the community as the incubation grounds for young scientists perspective calls for implementing support group strategies that encourage more young people to engage in science and contribute to the open science efforts. Exploiting the power of community effectively has the potential of keeping more senior and young scientists engaged in the open science efforts. The research and education networks need to look beyond connectivity and nurture communities from their end-user communities to empower them to create open science and knowledge.
Magnetic Gradient Fluctuations from Quadrupolar $^{73}$Ge in Si/SiGe Exchange-Only Qubits
Creators: name: Kerckhoff, J.
name: Sun, B.
name: Fong, B. H.
name: Jones, C.
name: Kiselev, A. A.
name: Barnes, D. W.
name: Noah, R. S.
name: Acuna, E.
name: Akmal, M.
name: Ha, S. D.
name: Wright, J. A.
name: Thomas, B. J.
name: Jackson, C. A. C.
name: Edge, L. F.
name: Eng, K.
name: Ross, R. S.
name: Ladd, T. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the time-fluctuating magnetic gradient noise mechanisms in pairs of Si/SiGe quantum dots using exchange echo noise spectroscopy. We find through a combination of spectral inversion and correspondence to theoretical modeling that quadrupolar precession of the $^{73}$Ge nuclei play a key role in the spin-echo decay time $T_2$, with a characteristic dependence on magnetic field and the width of the Si quantum well. The $^{73}$Ge noise peaks appear at the fundamental and first harmonic of the $^{73}$Ge Larmor resonance, superimposed over $1/f$ noise due to $^{29}$Si dipole-dipole dynamics, and are dependent on material epitaxy and applied magnetic field. These results may inform the needs of dynamical decoupling when using Si/SiGe quantum dots as qubits in quantum information processing devices.
description: 17 pages, 11 figures
An Application of Hölder's Inequality to Economics
Creators: name: Otterson, James
Publisher: name: arXiv
Year: 2020
Subjects: subject: Theoretical Economics (econ.TH)
subject: FOS: Economics and business
subject: 91B02 (Primary) 91B50 (Secondary)

description: We use Hölder's inequality to get simple derivations of certain economic formulas involving CES, Armington, or $n$-stage Armington functions.
description: 8 pages, 2 figures, http://www.accessecon.com/Pubs/EB/2020/Volume40/EB-20-V40-I4-P228.pdf
System identification, control algorithms and control interval for the Box-Jenkins dynamic model structure
Creators: name: Vu, Ky Mihn
Publisher: name: University of British Columbia
Year: 2009

description: The Box-Jenkins model of a discrete control system has been studied. First the transfer function model was identified numerically via the derivatives of the variance of the disturbance, then the disturbance model was identified via the derivative of the variance of the generating white noise. Once the model had been identified, an approach to obtain the optimal gains of a discrete PID controller was suggested. In an adaptive environment, the recursive least determinant self tuning controller was designed to calculate the best possible control action based only on the presumed orders of the controller and without knowledge of the delay. The problem of determination of a possible slower control interval of a control loop was solved via modelling a skipped ARIMA through matrix algebra and a robust numerical procedure.
Resource Allocation and Dithering of Bayesian Parameter Estimation Using Mixed-Resolution Data
Creators: name: Berman, Itai E.
name: Routtenberg, Tirza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Quantization of signals is an integral part of modern signal processing applications, such as sensing, communication, and inference. While signal quantization provides many physical advantages, it usually degrades the subsequent estimation performance that is based on quantized data. In order to maintain physical constraints and simultaneously bring substantial performance gain, in this work we consider systems with mixed-resolution, 1-bit quantized and continuous-valued, data. First, we describe the linear minimum mean-squared error (LMMSE) estimator and its associated mean-squared error (MSE) for the general mixed-resolution model. However, the MSE of the LMMSE requires matrix inversion in which the number of measurements defines the matrix dimensions and thus, is not a tractable tool for optimization and system design. Therefore, we present the linear Gaussian orthonormal (LGO) measurement model and derive a closed-form analytic expression for the MSE of the LMMSE estimator under this model. In addition, we present two common special cases of the LGO model: 1) scalar parameter estimation and 2) channel estimation in mixed-ADC multiple-input multiple-output (MIMO) communication systems. We then solve the resource allocation optimization problem of the LGO model with the proposed tractable form of the MSE as an objective function and under a power constraint using a one-dimensional search. Moreover, we present the concept of dithering for mixed-resolution models and optimize the dithering noise as part of the resource allocation optimization problem for two dithering schemes: 1) adding noise only to the quantized measurements and 2) adding noise to both measurement types. Finally, we present simulations that demonstrate the advantages of using mixed-resolution measurements and the possible improvement introduced with dithering and resource allocation.
title: Προσδόκιμο υγιούς ζωής : μέθοδοι εκτίμησης και εφαρμογή για τον πληθυσμό της Ελλάδας
title: Healthy life expectancy : methodologies and application for the Greek population
titleType: AlternativeTitle
Creators: name: Πεκτέση, Βασιλική
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Προσδόκιμο ζωής
subject: Προσδόκιμο υγιούς ζωής
subject: Δείκτες νοσηρότητας
subject: Συν-νοσηρότητα
subject: Αυτοαναφερόμενη υγεία
subject: Σύγκριση κατά φύλο
subject: Προσδόκιμο ζωής με περιορισμούς
subject: Προσδόκιμο ζωής χωρίς περιορισμούς
subject: Μέθοδος Sullivan

description: Η παρούσα διπλωματική εργασία εξετάζει το προσδόκιμο υγιούς ζωής, ένα δείκτη που συνδυάζει τη διάρκεια ζωής με την ποιότητα ζωής, εκφράζοντας τα έτη που ένα άτομο αναμένεται να ζήσει χωρίς προβλήματα υγείας. Η εκτίμηση του προσδόκιμου υγιούς ζωής είναι σημαντική για τη διαμόρφωση πολιτικών υγείας, καθώς επιτρέπει την αξιολόγηση της υγειονομικής κατάστασης ενός πληθυσμού και των απαιτούμενων παρεμβάσεων. Στο πρώτο κεφάλαιο, αναλύονται οι έννοιες του προσδόκιμου ζωής και της υγιούς ζωής, όπως επίσης και η εξέλιξη αυτών των δεικτών σε ευρωπαϊκό και διεθνές επίπεδο. Η μεθοδολογία που χρησιμοποιήθηκε βασίστηκε στην ανάλυση δεδομένων νοσηρότητας και θνησιμότητας από επίσημες πηγές, όπως η Eurostat, για τον ελληνικό πληθυσμό. Χρησιμοποιήσαμε τη μέθοδο Sullivan για την εκτίμηση του προσδόκιμου υγιούς ζωής, μία καθιερωμένη μεθοδολογία που συνδυάζει τη θνησιμότητα και τη νοσηρότητα σε μια ενιαία μέτρηση. Στη μελέτη εξετάστηκαν επίσης διαφορετικοί δείκτες νοσηρότητας, όπως οι περιορισμοί δραστηριοτήτων λόγω ασθένειας και οι χρόνιες ασθένειες, οι οποίοι λήφθηκαν από την έρευνα SHARE. Τα αποτελέσματα έδειξαν ότι ενώ το συνολικό προσδόκιμο ζωής στην Ελλάδα αυξάνεται, τα τελευταία χρόνια ζωής συχνά δαπανώνται με προβλήματα υγείας, γεγονός που υποδεικνύει την ανάγκη βελτίωσης της ποιότητας υγειονομικής φροντίδας και της πρόληψης των χρόνιων νοσημάτων. Οι πληροφορίες αυτές είναι κρίσιμες για την ανάπτυξη πολιτικών που στοχεύουν στην προώθηση της υγιούς γήρανσης και στη μείωση της επιβάρυνσης από ασθένειες.
Neuronal circuitry of the pigeon retina (Columba livia) : the morphological classification and organization of various neuronal types
Creators: name: Querubin, Angeliza Marave
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: QL696.C63 A54 2013
subject: Columba Physiology
subject: Retina Cytology
subject: Neurons

description: The three studies presented in this thesis were conducted to advance our understanding of the retinal circuitry that contributes to processing high visual acuity in the pigeon. In the first study, the topographic density changes and degree of photoreceptor (PR) to retinal ganglion cell (RGC) convergence in the pigeon retina was determined. DAPI or Propidium iodide labelled PRs and RGCs were counted in the retina. Rod density was quantified by counting anti-rod opsin stained outer segments. The fovea and the red field contained significantly higher cone and RGC densities compared with the yellow field. Rods were missing from the fovea, but not in the red field, which suggests that a rod circuitry may be present in this area. The ratio of cones to RGCs was lower in both the fovea and red field, which is consistent with the higher visual acuities that have been reported in these regions. The second study classified the types of DiO-Iabelled bipolar cells in the fovea, central red and yellow fields. Eight bipolar cell types were classified in the retina using a modification of Mariani's (1987) classification scheme. Eight BC types (B1 - B8) had similar dendritic morphology as the ones described by Mariani. Two bipolar cell types, B7 and B8, had comparatively smaller dendritic fields than the other types. It was estimated to receive input from possibly one photoreceptor in the fovea and the central red field. Based on the small dendritic field size, B7 and B8 may be good candidates for being the midget-like BCs in the pigeon retina. The third study classified the RGC groups in the pigeon retina. Classification of RGCs labelled with DiI/DiO in the pigeon retina was based on the dendritic stratification pattern in the inner plexiform layer (IPL). Five morphological RGC groups were identified, the unstratified, monostratified, bistratified, tristratified and tetrastratified. The unstratified group was characterised by vertically oriented dendrites occupying a thick portion of the IPL, whereas the other groups had horizontally oriented dendrites stratifying at narrow portion of the IPL. The unstratified RGC had the narrowest dendritic field (diameter >- 18.5 urn). Based on the unstratified RGC's dendritic field size, it is a good candidate for a 'midget-like' RGC in the pigeon retina. However, it has a different morphology from the primate midget RGC. Further work is required to determine the physiology and differential distribution of the different types of bipolar and ganglion cells in the pigeon retina.
Increase of critical currents and peak effect in Mo substituted YBa$_{2}$Cu$_{3}$O$_{7}$
Creators: name: Rogacki, K.
name: Dabrowski, B.
name: Chmaissem, O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconducting critical currents $j_{c} > 10^{5}$ A/cm$^{2}$ at temperatures $T \sim 50$ K and magnetic fields $B \sim 6$ T are reported for the YBa$_{2}$Cu$_{3-x}$Mo$_{x}$O$_{7+d}$ compound with $x = 0.02$. Clear evidence for the increased pinning force $F_p$ was found from a peak effect present for $j_{c}(B)$. The pinning force was analyzed by a scaling procedure using Kramer's approach. For a wide range of fields and temperatures, we were able to express all $F_p$ data as a single function of a reduced field $b = B/B_k$, where the scaling field $B_{k} << H_{c2}$ was related to the irreversibility filed $B_{irr}$. Analyses of the field dependence of $j_{c}(B,T)$ and $F_{p}(b)$ show that the effective pinning centers act as weakly interacting extended point-like defects. We propose that the pinning centers are randomly distributed small defects, most likely the dimers of MoO$_6$ octahedra in the CuO chains.
description: 12 pages, 11 figures
Summer growth near salmon sea cages and nitrogen uptake of kelp
Creators: name: Ahn, Ok-Hyun
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to test the hypothesis: a fish farm can fertilize kelp during summer when only nitrogen is a limiting factor for the growth of kelp. Temperature (10.0-14.7°C), salinity (22.3-30.0%o), water visibility (3.5-9.5 m) and daytime-irradiance data at 2 m depth in summers of 1995 and 1996 indicated suitable levels for the growth of kelp. Three kelp species, Laminaria saccharina, L. groenlandica and Nereocystis luetkeana, were collected from salmon fish farm nets and cultivated adjacent to and far from a salmon farm. Distal sites as control sites did not receive effluent from salmon farms. During the summer of 1995, the blade growth rates in length at the sites ranged from 2.50-5.4% d⁻¹ for L. saccharina and 5.15-6.57% d⁻¹ for N. luetkeana. Significant differences in the blade growth between L. saccharina control and experimental plants were observed (p > 0.05), and C/N ratio in the plant tissues increased with distance from the salmon farm. At both the farm and control sites, ambient NO₃⁻ concentrations were similar (above 12 μM). Ammonium concentration adjacent to the farm varied from 1.7-13.3 μM, while at the control site it was < 2 μM. For two consecutive 4-weeks experiments from May-July in 1996, in general, significant differences in growth rates were recorded between three species of control and experimental plants ranging from 2.70-3.79% d⁻¹ from May-June and 2.16-4.79% d⁻¹ from June-July. The ambient concentrations of NO₃⁻ near the fish farm and control sites were low (< 5 μM). The concentrations of NH⁴⁺ next to sea cages varied over time (1-34 μM) and were associated with fish feeding events. In the nitrogen uptake experiments involving various combinations of NH⁴⁺ and NO₃⁻ concentrations, the uptakes of NO₃⁻ by both L. saccharina and Nereocystis increased linearly with dissolved inorganic nitrogen (up to 70 μM). In contrast, NH⁴⁺ uptake by the kelps was saturated at approximately 11-13 μM. Only Nereocystis exhibited preference of NO₃⁻ over NH⁴⁺ when they were present equally in medium of 20 μM NO₃⁻ plus 20 μM NH⁴⁺ (p > 0.05). Any site where ambient concentration of ammonium is high (near 15 μM) during summer may be suitable for both L. saccharina and Nereocystis. However, it seems more efficient to fertilize kelp by nitrate than ammonium since nitrate uptake by both species increased linearly without the effect of external concentration of ammonium in the medium.
title: Αναλογιστικά μέτρα κινδύνων και φαινόμενα ελαστικότητας σε κατανομές απώλειας
title: Actuarial risk measures and elasticity phenomena in loss distributions
titleType: AlternativeTitle
Creators: name: Βλιώρα, Πολυξένη
name: Vliora, Polyxeni
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Αναλογικό μοντέλο κινδύνων
subject: Δείκτης δεξιάς ουράς
subject: Αθροιστική υπολειπόμενη εντροπία
subject: Μέτρα μεταβλητότητας
subject: Μέσος υπολειπόμενος χρόνος ζωής
subject: Σταθμισμένα ασφάλιστρα

description: Η διατριβή αυτή εστιάζει το ενδιαφέρον της στην κατασκευή αναλογιστικών μέτρων κινδύνου, που βασίζονται στις θεωρίες της στρεβλής και της σταθμισμένης προσδοκίας. Τα νέα προτεινόμενα μέτρα βρίσκουν εφαρμογή στην κατασκευή ασφαλίστρων και αναλογιστικών δεικτών. Διερευνούμε φαινόμενα ελαστικότητας, όπως για παράδειγμα μικρές διαταραχές στην κατανομή των αποζημιώσεων που επηρεάζουν τα μέτρα κινδύνου. Εφαρμόζουμε τη θεωρία διαταραχής σε διάφορες κατηγορίες στρεβλών συναρτήσεων, με σκοπό να μελετήσουμε τα μέτρα κινδύνου και να προτείνουμε νέους δείκτες μέτρησης της δεξιάς ουράς. Επιπλέον, εξετάζουμε φαινόμενα ελαστικότητας σε σταθμισμένα ασφάλιστρα, εισάγοντας μια θετική παράμετρο που έχει ως αποτέλεσμα την δημιουργία ενός ενδιάμεσου ασφάλιστρου, το οποίο βοηθάει τον αναλογιστή στην επιλογή μεταξύ δύο γνωστών αρχών ασφαλίστρων.
A population-based study to identify the prevalence and correlates of the dual burden of severe maternal morbidity and preterm birth in California
Creators: name: Lyndon, Audrey
name: Baer, Rebecca J.
name: Gay, Caryl L.
name: Ayadi, Alison M. El
name: Lee, Henry C.
name: Jelliffe-Pawlowski, Laura
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Computational Biology

description: Prior studies have documented associations between preterm birth and severe maternal morbidity (SMM) but the prevalence and correlates of dual burden are not adequately understood, despite significant family implications. To describe the prevalence and correlates of the dual burden of SMM and preterm birth and to understand profiles of SMM by dual burden of preterm birth. Approach: This retrospective cohort study included all California live births in 2007–2012 with gestations 20–44 weeks and linked to a birth cohort database maintained by the California Office of Statewide Health Planning and Development (n = 3,059,156). Dual burden was defined as preterm birth (<37 weeks) with severe maternal morbidity (SMM, defined by Centers for Disease Control). Predictors for dual burden were assessed using Poisson logistic regression, accounting for hospital variance. Rates of preterm birth and SMM were 876 and 140 per 10,000 births, respectively. The most common indications of SMM both with and without preterm birth were blood transfusions and a combination of cardiac indications. One-quarter of women with SMM experienced preterm birth with a dual burden rate of 37 per 10,000 births. Risk of dual burden was over threefold higher with cesarean birth (primiparous primary aRR = 3.3, CI = 3.0–3.6; multiparous primary aRR = 8.1, CI = 7.2–9.1; repeat aRR = 3.9, CI = 3.5–4.3). Multiple gestation conferred a six-fold increased risk (aRR = 6.3, CI = 5.8–6.9). Women with preeclampsia superimposed on gestational hypertension (aRR = 7.3, CI = 6.8–7.9) or preexisting hypertension (aRR = 11.1, CI = 9.9–12.5) had significantly higher dual burden risk. Significant independent predictors for dual burden included smoking during pregnancy (aRR = 1.5, CI = 1.4–1.7), preexisting hypertension without preeclampsia (aRR = 3.3, CI = 3.0–3.7), preexisting diabetes (aRR = 2.6, CI = 2.3–3.0), Black race/ethnicity (aRR = 2.0, CI = 1.8–2.2), and prepregnancy body mass index <18.5 (aRR = 1.4, CI = 1.3–1.5). Dual burden affects 1900 California families annually. The strongest predictors of dual burden were hypertensive disorders with preeclampsia and multiparous primary cesarean.
Product Centric Holons for Synchronisation and Interoperability in Manufacturing Environments
Creators: name: Baina, Salah
name: Morel, Gérard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In the last few years, lot of work has been done in order to ensure enterprise applications interoperability; however, proposed solutions focus mainly on enterprise processes. Indeed, throughout product lifecycle coordination needs to be established between reality in the physical world (physical view) and the virtual world handled by manufacturing information systems (informational view). This paper presents a holonic approach that enables synchronisation of both physical and informational views. A model driven approach for interoperability is proposed to ensure interoperability of holon based models with other applications in the enterprise.
Two models with rescattering for high energy heavy ion collisions
Creators: name: Boggild, H.
name: Hansen, Ole
name: Humanic, T. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The effects of hadronic rescattering in RHIC-energy Au+Au collisions are studied using two very different models to describe the early stages of the collision. One model is based on a hadronic thermal picture and the other on a superposition of parton-parton collisions. Operationally, the output hadrons from each of these models are used as input to a hadronic rescattering calculation. The results of the rescattering calculations from each model are then compared with rapidity and transverse momentum distributions from the RHIC BRAHMS experiment. It is found that in spite of the different points of view of the two models of the initial stage, after rescattering the observed differences between the models are mostly "washed out" and both models give observables that agree reasonably well with each other and experiment.
description: 26 pages, 17 figures, submitted to Phys. Rev. C
Crossing You in Style: Cross-modal Style Transfer from Music to Visual Arts
Creators: name: Lee, Cheng-Che
name: Lin, Wan-Yi
name: Shih, Yen-Ting
name: Kuo, Pei-Yi Patricia
name: Su, Li
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Music-to-visual style transfer is a challenging yet important cross-modal learning problem in the practice of creativity. Its major difference from the traditional image style transfer problem is that the style information is provided by music rather than images. Assuming that musical features can be properly mapped to visual contents through semantic links between the two domains, we solve the music-to-visual style transfer problem in two steps: music visualization and style transfer. The music visualization network utilizes an encoder-generator architecture with a conditional generative adversarial network to generate image-based music representations from music data. This network is integrated with an image style transfer method to accomplish the style transfer process. Experiments are conducted on WikiArt-IMSLP, a newly compiled dataset including Western music recordings and paintings listed by decades. By utilizing such a label to learn the semantic connection between paintings and music, we demonstrate that the proposed framework can generate diverse image style representations from a music piece, and these representations can unveil certain art forms of the same era. Subjective testing results also emphasize the role of the era label in improving the perceptual quality on the compatibility between music and visual content.
Maternal morbidity by attempted route of delivery in periviable birth
Creators: name: Kawakita, Tetsuya
name: Tavor Sondheimer
name: Jelin, Angie
name: Reddy, Uma M.
name: Helain J. Landy
name: Chun-Chih Huang
name: Ramsey, Patrick S.
name: Kominiarek, Michelle A.
name: Grantz, Katherine L.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Much of the literature on clinical decision-making regarding the optimal route of delivery for periviable birth, 23 0/7–25 6/7 weeks gestation, has focused on neonatal risks. In fact, routine cesarean delivery at these early gestational ages has not been shown to improve neonatal mortality or neurological outcomes. Neonatal risks associated with the route of delivery are well known. Conversely, there is a paucity of data on maternal morbidity associated with the route of delivery. We examined maternal morbidity according to the attempted route of delivery in women undergoing periviable birth. In a secondary analysis of the Consortium on Safe Labor, a retrospective cohort study, maternal outcomes were compared between attempted vaginal delivery and planned cesarean delivery in women undergoing periviable birth. Analyses were repeated to compare maternal outcomes among actual mode of delivery (vaginal delivery versus cesarean delivery). Multivariable Poisson regression was used to estimate adjusted relative risks (aRR) with 95% confidence intervals (95% CI), controlling for predefined covariates. Of 678 women who underwent periviable birth, 558 (82.3%) and 120 (17.7%) attempted vaginal delivery and planned cesarean delivery, respectively. Of 558 women who attempted a vaginal delivery, 411 (73.7%) achieved a vaginal delivery. Women who attempted a vaginal delivery compared to those who had a planned cesarean delivery were less likely to have endometritis (3.1 versus 15.0%; aRR 0.18, 95% CI 0.09–0.35). Women who attempted a vaginal delivery compared to those who had a planned cesarean delivery had 7-day shorter total length of hospital stay (p p The majority of women (73.7%) who attempted a vaginal delivery achieved a vaginal delivery. Attempting a vaginal delivery between 23 0/7 and 25 6/7 weeks gestation compared to a planned cesarean delivery was associated with decreased risks of maternal infectious morbidity. Deciding the route of delivery is challenging in women undergoing periviable delivery. Our analysis provides important information on short-term maternal risks when considering the risks and benefits during these discussions.
title: Implementing the WiPo Architecture
Creators: name: Stahl, Florian
name: Godde, Adrian
name: Hagedorn, Bastian
name: Köpcke, Bastian
name: Rehberger, Martin
name: Vossen, Gottfried
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2024
Subjects: subject: 004 Computer science
subject: 330 Economics

description: Information available online has exploded over the last 20 years. However this lead to the phenomenon known as information overload, making it harder and harder for organisations and individuals to find information that is really relevant to them. We previously have proposed a solution to this problem by presenting a framework that does not answer queries solely based on a pre-assembled index, but based on a subject-specific database that is sourced from the Internet, curated by domain experts, and dynamically generated based on vast user input. In this paper we describe our prototypic implementation of an information platform that delivers high quality information to users, achieved by means of curation.
description: 1 Introduction ..... 4
2 The WiPo Concept ..... 5
3 Architecture ..... 8
3.1 User Interface ..... 8
3.2 Web Interface ..... 10
3.2.1 Search Resource ..... 10
3.2.2 Curation Resource ..... 11
3.3 User Management ..... 12
3.4 Data Collection ..... 12
3.5 Curation ..... 13
3.6 Update Cycle ..... 15
3.7 Search Module ..... 18
3.7.1 Pre-Filters ..... 18
3.7.2 Indexing Service ..... 19
3.7.3 Post-Filters ..... 20
4 Conclusions and Future Work ..... 20
A Hamiltonian Approach for Obtaining Irreducible Projective Representations and the $k\cdot p$ Perturbation for Anti-unitary Symmetry Groups
Creators: name: Yang, Zhen-Yuan
name: Yang, Jian
name: Fang, Chen
name: Liu, Zheng-Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: As is known, the irreducible projective representations (Reps) of anti-unitary groups contain three different situations, namely, the real, the complex and quaternion types with torsion number 1,2,4 respectively. This subtlety increases the complexity in obtaining irreducible projective Reps of anti-unitary groups. In the present work, a physical approach is introduced to derive the condition of irreducibility for projective Reps of anti-unitary groups. Then a practical procedure is provided to reduce an arbitrary projective Rep into direct sum of irreducible ones. The central idea is to construct a hermitian Hamiltonian matrix which commutes with the representation of every group element $g\in G$, such that each of its eigenspaces forms an irreducible representation space of the group $G$. Thus the Rep is completely reduced in the eigenspaces of the Hamiltonian. This approach is applied in the $k\cdot p$ effective theory at the high symmetry points (HSPs) of the Brillouin zone for quasi-particle excitations in magnetic materials. After giving the criterion to judge the power of single-particle dispersion around a HSP, we then provide a systematic procedure to construct the $k\cdot p$ effective model.
A warm molecular ring in AG Car: composing the mass-loss puzzle
Creators: name: Bordiu, C.
name: Bufano, F.
name: Cerrigone, L.
name: Umana, G.
name: Rizzo, J. R.
name: Buemi, C. S.
name: Leto, P.
name: Cavallaro, F.
name: Ingallinera, A.
name: Loru, S.
name: Trigilio, C.
name: Riggi, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present APEX observations of CO J=3-2 and ALMA observations of CO J=2-1, 13CO J=2-1 and continuum toward the galactic luminous blue variable AG Car. These new observations reveal the presence of a ring-like molecular structure surrounding the star. Morphology and kinematics of the gas are consistent with a slowly expanding torus located near the equatorial plane of AG Car. Using non-LTE line modelling, we derived the physical parameters of the gas, which is warm (50 K) and moderately dense (10$^3$ cm$^{-3}$. The total mass of molecular gas in the ring is 2.7$\pm$0.9 solar masses. We analysed the radio continuum map, which depicts a point-like source surrounded by a shallow nebula. From the flux of the point-like source, we derived a current mass-loss date of $1.55\pm0.21\times10^{-5}$ solar masses / yr. Finally, to better understand the complex circumstellar environment of AG Car, we put the newly detected ring in relation to the main nebula of dust and ionised gas. We discuss possible formation scenarios for the ring, namely, the accumulation of interstellar material due to the action of the stellar wind, the remnant of a close binary interaction or merger, and an equatorially enhanced mass-loss episode. If molecular gas formed in situ as a result of a mass eruption, it would account for at least a 30$\%$ of the total mass ejected by AG Car. This detection adds a new piece to the puzzle of the complex mass-loss history of AG Car, providing new clues about the interplay between LBV stars and their surroundings.
description: 16 pages, 13 figures. Accepted for publication in MNRAS
Maternal morbidity by attempted route of delivery in periviable birth
Creators: name: Kawakita, Tetsuya
name: Tavor Sondheimer
name: Jelin, Angie
name: Reddy, Uma M.
name: Helain J. Landy
name: Chun-Chih Huang
name: Ramsey, Patrick S.
name: Kominiarek, Michelle A.
name: Grantz, Katherine L.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Objective: Much of the literature on clinical decision-making regarding the optimal route of delivery for periviable birth, 23 0/7–25 6/7 weeks gestation, has focused on neonatal risks. In fact, routine cesarean delivery at these early gestational ages has not been shown to improve neonatal mortality or neurological outcomes. Neonatal risks associated with the route of delivery are well known. Conversely, there is a paucity of data on maternal morbidity associated with the route of delivery. We examined maternal morbidity according to the attempted route of delivery in women undergoing periviable birth. Study design: In a secondary analysis of the Consortium on Safe Labor, a retrospective cohort study, maternal outcomes were compared between attempted vaginal delivery and planned cesarean delivery in women undergoing periviable birth. Analyses were repeated to compare maternal outcomes among actual mode of delivery (vaginal delivery versus cesarean delivery). Multivariable Poisson regression was used to estimate adjusted relative risks (aRR) with 95% confidence intervals (95% CI), controlling for predefined covariates. Results: Of 678 women who underwent periviable birth, 558 (82.3%) and 120 (17.7%) attempted vaginal delivery and planned cesarean delivery, respectively. Of 558 women who attempted a vaginal delivery, 411 (73.7%) achieved a vaginal delivery. Women who attempted a vaginal delivery compared to those who had a planned cesarean delivery were less likely to have endometritis (3.1 versus 15.0%; aRR 0.18, 95% CI 0.09–0.35). Women who attempted a vaginal delivery compared to those who had a planned cesarean delivery had 7-day shorter total length of hospital stay (p p Conclusion: The majority of women (73.7%) who attempted a vaginal delivery achieved a vaginal delivery. Attempting a vaginal delivery between 23 0/7 and 25 6/7 weeks gestation compared to a planned cesarean delivery was associated with decreased risks of maternal infectious morbidity. Deciding the route of delivery is challenging in women undergoing periviable delivery. Our analysis provides important information on short-term maternal risks when considering the risks and benefits during these discussions.
A population-based study to identify the prevalence and correlates of the dual burden of severe maternal morbidity and preterm birth in California
Creators: name: Lyndon, Audrey
name: Baer, Rebecca J.
name: Gay, Caryl L.
name: Ayadi, Alison M. El
name: Lee, Henry C.
name: Jelliffe-Pawlowski, Laura
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Computational Biology

description: Background: Prior studies have documented associations between preterm birth and severe maternal morbidity (SMM) but the prevalence and correlates of dual burden are not adequately understood, despite significant family implications. Purpose: To describe the prevalence and correlates of the dual burden of SMM and preterm birth and to understand profiles of SMM by dual burden of preterm birth. Approach: This retrospective cohort study included all California live births in 2007–2012 with gestations 20–44 weeks and linked to a birth cohort database maintained by the California Office of Statewide Health Planning and Development (n = 3,059,156). Dual burden was defined as preterm birth (<37 weeks) with severe maternal morbidity (SMM, defined by Centers for Disease Control). Predictors for dual burden were assessed using Poisson logistic regression, accounting for hospital variance. Results: Rates of preterm birth and SMM were 876 and 140 per 10,000 births, respectively. The most common indications of SMM both with and without preterm birth were blood transfusions and a combination of cardiac indications. One-quarter of women with SMM experienced preterm birth with a dual burden rate of 37 per 10,000 births. Risk of dual burden was over threefold higher with cesarean birth (primiparous primary aRR = 3.3, CI = 3.0–3.6; multiparous primary aRR = 8.1, CI = 7.2–9.1; repeat aRR = 3.9, CI = 3.5–4.3). Multiple gestation conferred a six-fold increased risk (aRR = 6.3, CI = 5.8–6.9). Women with preeclampsia superimposed on gestational hypertension (aRR = 7.3, CI = 6.8–7.9) or preexisting hypertension (aRR = 11.1, CI = 9.9–12.5) had significantly higher dual burden risk. Significant independent predictors for dual burden included smoking during pregnancy (aRR = 1.5, CI = 1.4–1.7), preexisting hypertension without preeclampsia (aRR = 3.3, CI = 3.0–3.7), preexisting diabetes (aRR = 2.6, CI = 2.3–3.0), Black race/ethnicity (aRR = 2.0, CI = 1.8–2.2), and prepregnancy body mass index <18.5 (aRR = 1.4, CI = 1.3–1.5). Conclusions: Dual burden affects 1900 California families annually. The strongest predictors of dual burden were hypertensive disorders with preeclampsia and multiparous primary cesarean.
Higher dimensional black holes with a generalized gravitational action
Creators: name: Matyjasek, Jerzy
name: Telecka, Malgorzata
name: Tryniecki, Dariusz
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the most general higher order corrections to the pure gravity action in $D$ dimensions constructed from the basis of the curvature monomial invariants of order 4 and 6, and degree 2 and 3, respectively. Perturbatively solving the resulting sixth-order equations we analyze the influence of the corrections upon a static and spherically symmetric back hole. Treating the total mass of the system as the boundary condition we calculate location of the event horizon, modifications to its temperature and the entropy. The entropy is calculated by integrating the local geometric term constructed from the derivative of the Lagrangian with respect to the Riemann tensor over a spacelike section of the event horizon. It is demonstrated that identical result can be obtained by integration of the first law of the black hole thermodynamics with a suitable choice of the integration constant. We show that reducing coefficients to the Lovelock combination, the approximate expression describing entropy becomes exact. Finally, we briefly discuss the problem of field redefinition and analyze consequences of a different choice of the boundary conditions in which the integration constant is related to the exact location of the event horizon and thus to the horizon defined mass.
The United Workers: Toward a New Paradigm of Transformative Community-Labor Organizing
Creators: name: Rosenthal, Greg Jason
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: Human Rights
Living Wages
Movement to End Poverty
neoliberalism
Poverty
United Workers

description: In this thesis I analyze the Baltimore-based poor people's human rights organization, the United Workers and its Transformative Community-Labor Organizing paradigm between 2002 and 2008. Accordingly, I analyze three areas. (1) The United Workers as a response to neoliberal capitalism and the declining role of trade unions. (2) The organization and its model as an attempt to offer a successful example of organizing under neoliberalism. That is, within the service and tourist sector, which is nearly devoid of formal working class organization, and working conditions are precarious. (3) The obstacles and achievements of the organization as demonstrated through its organizing model and the Living Wages Campaign at Camden Yards. The greatest obstacle comes in the form of a pedagogical tension, described as a rift in the group's pedagogical praxis. The achievements stem from the resolution of this tension, which offer new ways of approaching labor within neoliberalism. Much of the information on the United Workers presented derives from eight years of participant observations. An analysis of the three areas is produced using the works of Karl Marx, Friedrich Engels, David Harvey, Immanuel Wallerstein and Vanessa Tait's Poor Workers' Unions. They contribute to contextualizing the nature of class struggle, neoliberal capitalism, social movements, the decline of trade unions and the formation of community-labor organizations like the United Workers. Furthermore, the works of Antonio Gramsci, Paulo Freire, Willie Baptist and the Coalition of Immokalee Workers (CIW) are drawn upon as they influenced the United Workers in developing its pedagogy and organizing approach.