cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
RG flow equations for the proper-vertices of the background effective average action
Creators: name: Codello, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a system of coupled flow equations for the proper-vertices of the background effective average action and we give an explicit representation of these by means of diagrammatic and momentum space techniques. This explicit representation can be used as a new computational technique that enables the projection of the flow of a large new class of truncations of the background effective average action. In particular, these can be single- or bi-field truncations of local or non-local character. As an application we study non-abelian gauge theories. We show how to use this new technique to calculate the beta function of the gauge coupling (without employing the heat kernel expansion) under various approximations. In particular, one of these approximations leads to a derivation of beta functions similar to those proposed as candidates for an "all-orders" beta function. Finally, we discuss some possible phenomenology related to these flows.
description: 70 pages, 14 figures; v2: matches published version
title: Ψηφιακή καθοδήγηση εργαλειομηχανών μέσω συστήματος CAD/CAM - σχεδιομελέτη και παραγωγή ακραξονίων
title: Digital machine tool guidance through CAD / CAM system – study, design and production of metallic end-fittings
Creators: name: Τιριακιδης Νικολαος
Publisher: name: Technical University of Crete
Year: 2019

description: Ο κόσμος σήμερα έχει μεγάλη ανάγκη για υψηλές αποδόσεις σε όλους τους τομείς και κυρίως στις σύγχρονες γραμμές παραγωγής, όπου υλικά με ειδικές ιδιότητες και αντοχές είναι πλέον απαραίτητα.
Την ανάγκη αυτή, έρχονται να καλύψουν τα σύνθετα υλικά, δηλαδή εκείνα τα υλικά που αποτελούνται από δυο ή περισσότερα συστατικά, τα οποία συνδυάζονται για να επιτευχθούν ειδικές ιδιότητες και χαρακτηριστικά, που κανένα από τα συμμετέχοντα συστατικά δεν μπορεί από μόνο του να επιτύχει.
Ωστόσο, τα σύνθετα υλικά δεν μπορούν να σταθούν μόνα τους σε κανενός είδους εφαρμογή. Η επιτυχία της κάθε εφαρμογής εξαρτάται από την άρτια συναρμογή των συνθέτων με συμβατικά υλικά, όπως το αλουμίνιο.
Η συναρμογή συνθέτων και συμβατικών υλικών, απαιτεί την ορθή μηχανουργική τους επεξεργασία με μεγάλη ακρίβεια, η οποία μπορεί να επιτευχθεί με ψηφιακή καθοδήγηση εργαλειομηχανών μέσω συστήματος CAD/CAM.
Στην παρούσα Διπλωματική γίνεται αρχικά μια περιγραφή των συνθέτων υλικών, των τρόπων παραγωγής αυτών και των εφαρμογών τους. Στη συνέχεια γίνεται περιγραφή των μεταλλικών, κυλινδρικών ακραξονίων και εξηγούνται οι τρόποι σύνδεσης τους με τα σύνθετα υλικά, κυλινδρικής γεωμετρίας. Τέλος περιγράφεται λεπτομερώς ο τρόπος παραγωγής των μεταλλικών ακραξονίων με τη χρήση συστήματος CAD/CAM και CNC εργαλειομηχανών.
Additional file 1 of Conducting health services research during the COVID-19 pandemic: experiences from the veterans health administration
Creators: name: Connelly, Brigid
name: Hess, Edward
name: Daus, Marguerite
name: Battaglia, Catherine
name: Gilmartin, Heather M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: Additional file 1: Appendix 1. REDCap Survey. Appendix 2. Survey Respondents VA Medical Centers Location and Sample Size. Appendix 3. Other Barriers to Remote Work: Coded Categories. Appendix 4. Workarounds Created to Address Barriers to Remote Work.
Local Superfluidity at the Nanoscale
Creators: name: Kulchytskyy, B.
name: Gervais, G.
name: Del Maestro, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have performed quantum Monte Carlo simulations measuring the finite size and temperature superfluid response of helium-4 to the linear and rotational motion of the walls of a nanopore. Within the two-fluid model, the portion of the normal liquid dragged along with the boundaries is dependent on the type of motion and the resulting anisotropic superfluid density saturates far below unity at T=0.5 K. The origin of the saturation is uncovered by computing the spatial distribution of superfluidity, with only the core of the nanopore exhibiting any evidence of phase coherence. The superfluid core displays scaling behavior consistent with Luttinger liquid theory, thereby providing an experimental test for the emergence of a one dimensional quantum liquid.
description: Added a figure and extended discussion
Dylan Self Portrait
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: The Boxer" by Simon & Garfunkel, "Quinn the Eskimo" by Bob Dylan, "Take me As I Am (Or Let Me Go)" by George Jones, "Take a Message to Mary," "Minstrel Boy," "She Belongs To Me" by Bob Dylan, and "Alberta" by Bob Dylan play
Explicit symplectic methods in black hole spacetimes
Creators: name: Wu, Xin
name: Wang, Ying
name: Sun, Wei
name: Liu, Fu-Yao
name: Han, Wen-Biao
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Chaotic Dynamics (nlin.CD)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: F.2.2; J.2
subject: 83-08, 85-08, 70Kxx

description: Many Hamiltonian problems in the Solar System are separable or separate into two analytically solvable parts, and thus give a great chance to the development and application of explicit symplectic integrators based on operator splitting and composing. However, such constructions cannot in general be available for curved spacetimes in general relativity and modified theories of gravity, because these curved spacetimes correspond to nonseparable Hamiltonians without the two part splits. Recently, several black hole spacetimes such as the Schwarzschild black hole were found to allow the construction of explicit symplectic integrators, since their corresponding Hamiltonians are separable into more than two explicitly integrable pieces. Although some other curved spacetimes including the Kerr black hole do not exist such multi part splits, their corresponding appropriate time transformation Hamiltonians do. In fact, the key problem for the obtainment of symplectic analytically integrable decomposition algorithms is how to split these Hamiltonians or time transformation Hamiltonians. Considering this idea, we develop explicit sympelcetic schemes in curved spacetimes. We introduce a class of spacetimes whose Hamiltonians are directly split into several explicitly integrable terms. For example, the Hamiltonian of rotating black ring has a 13 part split. We also present two sets of spacetimes whose appropriate time transformation Hamiltonians have the desirable splits. For instance, an 8 part split exists in a time-transformed Hamiltonian of Kerr-Newman solution with disformal parameter. In this way, the proposed symplectic splitting methods will be used widely for long-term integrations of orbits in most curved spacetimes we have known.
description: 16pages,accepted by Astrophysical Journal
MDMA (“Ecstasy”) Abuse and High-Risk Sexual Behaviors Among 169 Gay and Bisexual Men
Creators: name: Klitzman, Robert L.
name: Pope Jr., Harrison G.
name: Hudson, James I.
Publisher: name: Columbia University
Year: 2000
Subjects: Gay men--Sexual behavior
Bisexual men--Sexual behavior
Ecstasy (Drug)
Unsafe sex

description: OBJECTIVE: The authors explored the association between abuse of 3,4-methylenedioxymethamphetamine (MDMA, or “Ecstasy”) and high-risk sexual behaviors among gay and bisexual men. METHOD: An anonymous questionnaire was completed by 169 gay and bisexual men at three New York City dance clubs. The questionnaire covered demographic indices, use of MDMA and other drugs, and history of high-risk sexual behaviors. RESULTS: About one-third of the respondents reported MDMA use at least monthly. MDMA use was strongly and significantly associated with a history of recent unprotected anal intercourse. This association remained equally strong even after controlling for age, ethnicity, and all other forms of drug use, including alcohol. CONCLUSIONS: MDMA abuse, and its strong association with high-risk sexual behaviors, appears to represent important unexplored public health problems among some gay or bisexual men.
title: Βελτίωση της δυνατότητας εκτίμησης κινδύνου έναρξης πυρκαγιάς στα περιαστικά δάση Ηλιούπολης Αττικής και Σερρών με χρήση προηγμένων τεχνικών ομαδοποίησης στα μετεωρολογικά δεδομένα των περιοχών αυτών
Creators: name: Λύκας Χρήστος
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Polarization operator for plane-wave background fields
Creators: name: Meuren, S.
name: Keitel, C. H.
name: Di Piazza, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive an alternative representation of the leading-order contribution to the polarization operator in strong-field quantum electrodynamics with a plane-wave electromagnetic background field, which is manifestly symmetric with respect to the external photon momenta. Our derivation is based on a direct evaluation of the corresponding Feynman diagram, using the Volkov representation of the dressed fermion propagator. Furthermore, the validity of the Ward-Takahashi identity is shown for general loop diagrams in an external plane-wave background field.
description: 20 pages, 2 figures
Probability distribution over some phenomenological models in the matrix model compactified on a torus
Creators: name: Aoki, Hajime
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study some phenomenological models in a matrix model corresponding to the IIB matrix model compactified on a six-dimensional torus with magnetic fluxes. Extending our previous works, we examine a wider class of models: a Pati-Salam-like model with a gauge group U(4)*U_L(2)*U_R(2), and models where the gauge group U(4) is broken down to U_c(3)*U(1) and/or U_R(2) is broken down to U(1)^2. We find all the matrix configurations that yield matter content of all the phenomenological models whose gauge group is a subgroup of U(8). We then estimate semiclassically a probability distribution for the appearance of the phenomenological models.
description: 45 pages. arXiv admin note: substantial text overlap with arXiv:1209.4514; ver2: text revised; ver3: version published in PTEP
title: Σχεδίαση και υλοποίηση σε επεξεργαστή και FPGA απομακρυσμένης κλήσης συναρτήσεων για λογισμικό NCBI BLAST
Creators: name: Βασταρούχας Γιώργος
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
Less Can Be More: Exploring Population Rating Dispositions with Partitioned Models in Recommender Systems
Creators: name: Sun, Ruixuan
name: Kong, Ruoyan
name: Jin, Qiao
name: Konstan, Joseph A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In this study, we partition users by rating disposition - looking first at their percentage of negative ratings, and then at the general use of the rating scale. We hypothesize that users with different rating dispositions may use the recommender system differently and therefore the agreement with their past ratings may be less predictive of the future agreement. We use data from a large movie rating website to explore whether users should be grouped by disposition, focusing on identifying their various rating distributions that may hurt recommender effectiveness. We find that such partitioning not only improves computational efficiency but also improves top-k performance and predictive accuracy. Though such effects are largest for the user-based KNN CF, smaller for item-based KNN CF, and smallest for latent factor algorithms such as SVD.
description: Ruixuan Sun, Ruoyan Kong, Qiao Jin, and Joseph A. Konstan. 2023. Less Can Be More: Exploring Population Rating Dispositions with Partitioned Models in Recommender Systems. In UMAP 23 Adjunct: Adjunct Proceedings of the 31st ACM Conference on User Modeling, Adaptation and Personalization (UMAP 23 Adjunct), June 26-29, 2023, Limassol, Cyprus. ACM, New York, NY, USA, 5 pages
Exploring the parameter space of MagLIF implosions using similarity scaling. II. Current scaling
Creators: name: Ruiz, D. E.
name: Schmit, P. F.
name: Yager-Elorriaga, D. A.
name: Gomez, M. R.
name: Weis, M. R.
name: Jennings, C. A.
name: Harvey-Thompson, A. J.
name: Knapp, P. F.
name: Slutz, S. A.
name: Ampleford, D. J.
name: Beckwith, K.
name: Matzen, M. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Magnetized Liner Inertial Fusion (MagLIF) is a magneto-inertial-fusion (MIF) concept, which is presently being studied on the Z Pulsed Power Facility. The MagLIF platform has achieved interesting plasma conditions at stagnation and produced significant fusion yields in the laboratory. Given the relative success of MagLIF, there is a strong interest to scale the platform to higher peak currents. However, scaling MagLIF is not entirely straightforward due to the large dimensionality of the experimental input parameter space and the large number of distinct physical processes involved in MIF implosions. In this work, we propose a novel method to scale MagLIF loads to higher currents. Our method is based on similarity (or similitude) scaling and attempts to preserve much of the physics regimes already known or being studied on today's Z pulsed-power driver. By avoiding significant deviations into unexplored and/or less well-understood regimes, the risk of unexpected outcomes on future scaled-up experiments is reduced. Using arguments based on similarity scaling, we derive the scaling rules for the experimental input parameters characterizing a MagLIF load (as functions of the characteristic current driving the implosion). We then test the estimated scaling laws for various metrics measuring performance against results of 2D radiation--magneto-hydrodynamic HYDRA simulations. Agreement is found between the scaling theory and the simulation results.
description: 19 pages, submitted to Physics of Plasmas
The influence of flux rope heating models on solar prominence formation
Creators: name: Brughmans, N.
name: Jenkins, J. M.
name: Keppens, R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims. We begin by exploring the influence of two classes of commonly adopted heating models on the formation behaviour of solar prominences. These models consider either an exponential variation dependent on height alone, or local density and magnetic field conditions. We highlight and address some of the limitations inherent to these early approximations by proposing a new, dynamic 2D flux rope heating model that qualitatively accounts for the 3D topology of the twisted flux rope field. Methods. We performed 2.5D grid-adaptive numerical simulations of prominence formation via the levitation-condensation mechanism. A linear force-free arcade is subjected to shearing and converging motions, leading to the formation of a flux rope containing material that may succumb to thermal instability. The eventual formation and subsequent evolution of prominence condensations was then quantified as a function of the specific background heating prescription adopted. For the simulations that consider the topology of the flux rope, reduced heating was considered within a dynamically evolving ellipse that traces the flux rope cross-section. This ellipse is centred on the flux rope axis and tracked during runtime using an approach based on the instantaneous magnetic field curvature. Results. We find that the nature of the heating model is clearly imprinted on the evolution and morphology of any resulting prominences: one large, low-altitude condensation is obtained for the heating model based on local parameters, while the exponential model leads to the additional formation of smaller blobs throughout the flux rope which then relocate as they tend towards achieving hydrostatic equilibrium. Finally, a study of the condensation process in phase space reveals a non-isobaric evolution with an eventual recovery of uniform pressure balance along flux surfaces.
description: 19 pages, 12 figures, accepted for publication in Astronomy & Astrophysics
title: Σχεδιασμός και υλοποίηση συστήματος εναλλακτικής και επαυξημένης επικοινωνίας με ένα κουμπί
Creators: name: Καλαμπρατσίδου Βιλελμίνη
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Intricacies and inter-relationships between HIV disclosure and HAART: A qualitative study
Creators: name: Klitzman, Robert L.
name: Kirshenbaum, S. B.
name: Dodge, B.
name: Remien, Robert Howard
name: Ehrhardt, Anke A.
name: Johnson, M. O.
name: Kittel, L. E.
name: Daya, Shaira
name: Morin, S. F.
name: Kelly, J. A.
name: Lightfoot, M.
name: Rotheram-Borus, M. J.
name: NIMH Healthy Living Trial Group
Publisher: name: Columbia University
Year: 2004
Subjects: HIV-positive persons
HIV infections--Treatment
Medical care--Decision making
Highly active antiretroviral therapy
Self-disclosure--Health aspects

description: This study aimed to understand whether and how highly active antiretroviral treatment (HAART) affects views and patterns of disclosure and how disclosure interacts with treatment decisions. One hundred and fifty-two HIV-positive adults (52 MSM, 56 women and 44 IDU men) from four US cities participated in two to three-hour, semi-structured interviews in 1998–99. Results indicate that HAART interacts with and shapes HIV disclosure issues in several ways. Medications may ‘out’ people living with HIV. Thus, in different settings (e.g. work, prisons, drug rehabs and public situations), some try to hide medications or modify dosing schedules, which can contribute to non-adherence, and affect sexual behaviours. Disclosure of HIV and/or HAART may also result in antagonism from others who hold negative attitudes and beliefs about HAART, potentially impeding adherence. Observable side effects of medications can also ‘out’ individuals. Conversely, medications may improve appearance, delaying or impeding disclosure. Some wait until they are on HAART and look ‘well’ before disclosing; some who look healthy as a result of medication deny being HIV-positive. Alternatively, HIV disclosure can lead to support that facilitates initiation of, and adherence to, treatment. HIV disclosure and adherence can shape one another in critical ways. Yet these interactions have been under-studied and need to be further examined. Interventions and studies concerning each of these domains have generally been separate, but need to be integrated, and the importance of relationships between these two areas needs to be recognized.
Exploring the parameter space of MagLIF implosions using similarity scaling. III. Rise-time scaling
Creators: name: Ruiz, D. E.
name: Schmit, P. F.
name: Weis, M. R.
name: Peterson, K. J.
name: Matzen, M. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Magnetized Liner Inertial Fusion (MagLIF) is a z-pinch magneto-inertial-fusion (MIF) concept studied on the Z Machine at Sandia National Laboratories. Two important metrics characterizing current delivery to a z-pinch load are the peak current and the current-rise time, which is roughly the time interval to reach peak current. It is known that, when driving a z-pinch load with a longer current-rise time, the performance of the z-pinch decreases. However, a theory to understand and quantify this effect is still lacking. In this paper, we utilize a framework based on similarity scaling to analytically investigate the variations in performance of MagLIF loads when varying the current-rise time, or equivalently, the implosion timescale. To maintain similarity between the implosions, we provide the scaling prescriptions of the experimental input parameters defining a MagLIF load and derive the scaling laws for the stagnation conditions and for various performance metrics. We compare predictions of the theory to 2D numerical simulations using the radiation, magneto-hydrodynamic code HYDRA. For several metrics, we find acceptable agreement between the theory and simulations. Our results show that the voltage near the MagLIF load follows a weak scaling law $\smash{φ_{\rm load} \propto t_φ^{-0.12}}$ with respect to the characteristic timescale $t_φ$ of the voltage source, instead of the ideal $\smash{φ_{\rm load} \propto t_φ^{-1}}$ scaling. This occurs because the imploding height of the MagLIF load must increase to preserve end losses. As a consequence of the longer imploding liners, the required total laser preheat energy and delivered electric energy increase. Overall, this study may help understand the trade-offs of the MagLIF design space when considering future pulsed-power generators with shorter and longer current-rise times.
description: 15 pages, 20 figures, submitted to Phys. Plasmas. arXiv admin note: text overlap with arXiv:2209.14911
Additional file 1 of Evaluation of patients´ perspective on a multimorbidity patient-centered care model piloted in the chilean public health system
Creators: name: Sapag, Jaime C.
name: Martínez, Mayra
name: Zamorano, Paula
name: Varela, Teresita
name: Téllez, Álvaro
name: Irazoqui, Esteban
name: Muñoz, Paulina
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Supplementary Material 1
Die ehemalige Renesse’sche Sammlung. Einleitung: Geschichte derselben
Creators: name: Eltester, Leopold Von
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 58 (1876): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Quasi-spherical superclusters
Creators: name: Heinämäki, Pekka
name: Teerikorpi, Pekka
name: Douspis, Marian
name: Nurmi, Pasi
name: Einasto, Maret
name: Gramann, Mirt
name: Nevalainen, Jukka
name: Saar, Enn
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Generally the dynamical state of superclusters is poorly known. We study properties of superclusters and select a sample of quasi-spherical superclusters, the dynamics of which can be studied using the $Λ$ significance diagram. We extracted our supercluster sample with an adaptive local threshold density method from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7) data and estimated their masses using the dynamical masses for member galaxies and groups. We used topological analysis based on Minkowski functionals and the positions of galaxies and galaxy groups in superclusters. Finally, we highlight the dynamical state of a few exceptional types of superclusters found in this study using the $Λ$ significance diagram. Our final sample contains 65 superclusters in the distance range of 130 to 450 Mpc. Supercluster masses range between $1.1 \times 10^{15} M_{\sun}$ and $1.4 \times 10^{16} M_{\sun}$ and sizes between 25 Mpc and 87 Mpc. We find that pancake-type superclusters form the low-luminosity, small, poor and low-mass end of superclusters. We find four superclusters of unusual types, exhibiting exceptionally spherical shapes. These so-called quasi-spherical systems contain a high-density core surrounded by a relatively spherical density and galaxy distribution.The mass-to-light ratio of these quasi-sphericals is higher than those of the other superclusters, suggesting a relatively high dark matter content. Using the $Λ$ significance diagram for oblate and prolate spheroids, we find that three quasi-spherical superclusters are gravitationally bound at the present epoch. Quasi-spherical superclusters are among the largest gravitationally bound systems found to date, and form a special class of giant systems that, dynamically, are in between large gravitationally unbound superclusters and clusters of galaxies in an equilibrium configuration.
description: 15 pages, 10 figures, 2 tables, accepted in Astronomy & Astrophysics
Das alte Konstanz, seine Entstehung, seine Kunstschätze und Künstler
Creators: name: Marmor, Johann Fidelis Nikolaus
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 60 (1877): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Ethical Issues Concerning Disclosures of HIV Diagnoses to Perinatally Infected Children and Adolescents
Creators: name: Klitzman, Robert L.
name: Marhefka, Stephanie
name: Mellins, Claude
name: Wiener, Lori
Publisher: name: Columbia University
Year: 2008
Subjects: HIV-positive children
HIV infections--Moral and ethical aspects
Health--Decision making
Medical ethics

description: Healthcare workers (HCWs) often disagree with caregivers or parents about whether, when, and how to disclose HIV serostatus to perinatally HIV-infected children, yet the critical ethical, moral, and legal issues involved and their interplay have been underexplored. The purpose of this article is to bring attention to this increasingly important issue and the complexities involved, and to provide a framework for considering disclosure-related challenges.
Döpp, Siegmar: Ioannes Fabricius Montanus. Die beiden lat. Autobiographien
Creators: name: Gaudenz, Gion
Publisher: name: Forum Classicum
Year: 2017

description: Rezension: Döpp, Siegmar: Ioannes Fabricius Montanus. Die beiden lat. Autobiographien. Mainz: Akad. d. Wiss. u. Lit.; Stuttgart: Steiner 1998. 45 S., 28,00 DM. (Akademie d. Wiss. u. d. Lit. Abh. d. geistes- u. sozialwiss. Klasse. Jg. 1998,8; ISBN 3-515- 07455-4).
description: Forum Classicum, Nr. 2 (1999): Forum Classicum
Disclosures of Huntington disease risk within families: Patterns of decision‐making and implications
Creators: name: Klitzman, Robert L.
name: Thorne, Deborah Z.
name: Williamson, Jennifer
name: Chung, Wendy K.
name: Marder, Karen
Publisher: name: Columbia University
Year: 2007
Subjects: Human chromosome abnormalities--Diagnosis--Social aspects
Self-disclosure--Health aspects
Decision making
Health--Decision making
Huntington's disease

description: Patterns of disclosure of Huntington disease risk and genetic test results among family members are important, but have been underexplored. We interviewed 21 individuals in‐depth—eight mutation‐positive for HD, four mutation‐negative, and nine not tested—for 2 hr each. Within families, critical questions arose of what, when, and to whom to disclose, and what to do post‐disclosure. Interviewees wrestled with dilemmas of what to tell (e.g., suspicions vs. confirmed symptoms; initiation vs. completion of testing; partial vs. indirect information), how to disclose (e.g., planning in advance vs. “blurting out” information in arguments), and whether and how to tell extended family members. Questions arose of when to tell (i.e., to avoid disclosing “too early” or “too late”). Similarities and differences emerged related to types of relationships (e.g., parents telling offspring vs. offspring telling parents vs. siblings telling each other). Individuals often disclosed because of perceived duty to foster the health of their family members, enabling these others to pursue appropriate medical evaluation, if desired. Yet tensions arose because the information could burden these members, who also have rights to remain “in denial” if they wish and not discuss the topic or pursue testing. Post‐disclosure, dilemmas emerged of whether and how much to encourage family members to pursue testing. These data shed important light on critical issues that have received little, if any, attention concerning what, how, and when disclosure occurs, and have key implications for at‐risk individuals, genetic counselors, and other health care workers (HCWs), and for future research. At‐risk individuals would benefit from considering these issues in advance. HCWs need to realize that these decisions are multi‐faceted. Future research can explore whether, when, how, and how often HCWs raise these issues with individuals.
SDSS-IV MaStar: Stellar Parameter Determination with Continuum-Supplemented Full-Spectrum Fitting
Creators: name: Lazarz, Daniel
name: Yan, Renbin
name: Wilhelm, Ronald
name: Chen, Yanping
name: Hill, Lewis
name: Holtzman, Jon A.
name: Imig, Julie
name: Maraston, Claudia
name: Mészáros, Szabolcs
name: Stringfellow, Guy S.
name: Thomas, Daniel
name: Beers, Timothy C.
name: Bizyaev, Dmitry
name: Drory, Niv
name: Lane, Richard R.
name: Nitschelm, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a stellar parameter catalog built to accompany the MaStar Stellar Library, which is a comprehensive collection of empirical, medium-resolution stellar spectra. We constructed this parameter catalog by using a multicomponent $χ^{2}$ fitting approach to match MaStar spectra to models generated by interpolating the ATLAS9-based BOSZ model spectra. The total $χ^{2}$ for a given model is defined as the sum of components constructed to characterize narrow-band features of observed spectra (e.g., absorption lines) and the broadband continuum shape separately. Extinction and systematics due to flux calibration were taken into account in the fitting. The $χ^{2}$ distribution for a given region of model space was sampled using a Markov Chain Monte Carlo (MCMC) algorithm, the data from which were then used to extract atmospheric parameter estimates ($T_{eff}$, log g, [Fe/H], and [$α$/Fe]), their corresponding uncertainties, and direct extinction measurements. Two methods were used to extract parameters and uncertainties: one that accepts the MCMC's prescribed minimum-$χ^{2}$ result, and one that uses Bayesian inference to compute a likelihood-weighted mean from the $χ^{2}$ distribution sampled by the MCMC. Results were evaluated for internal consistency using repeat observations where available and by comparing them with external data sets (e.g., APOGEE-2 and Gaia DR2). Our spectral-fitting exercise reveals possible deficiencies in current theoretical model spectra, illustrating the potential power of MaStar spectra for helping to improve the models. This paper represents an update to the parameters that were originally presented with SDSS-IV DR17. The MaStar parameter catalog containing our BestFit results is available on the SDSS-IV DR17 website as part of version 2 of the MaStar stellar parameter value-added catalog.
description: 22 pages, 21 figures. A&A in press
Recurrence relation for instanton partition function in SU(N) gauge theory
Creators: name: Sysoeva, Ekaterina
name: Bykov, Aleksei
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the equivariant instanton partition function in $\mathcal{N}=2$ supersymmetric theory on $\mathbb{C}^2$ with $SU(N)$ gauge group and find the generalisation of the Zamolodchikov recurrence relation. We consider the pure theory as well as theories with matter hypermultiplets in the adjoint and fundamental representations.
Universal Two-body Physics in Dark Matter near an S-wave Resonance
Creators: name: Braaten, Eric
name: Hammer, H. -W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The dark matter annihilation rate at small relative velocities can be amplified by a large boost factor using various mechanisms, including Sommerfeld enhancement, resonance enhancement, and Breit-Wigner enhancement. These mechanisms all involve a resonance near the threshold for a pair of dark matter particles. We point out that if the resonance is in the S-wave channel, the mechanisms are equivalent sufficiently near the resonance and they are constrained by universal two-body physics. The amplified annihilation rate requires a corresponding amplification of the elastic scattering cross section. If the resonance is a bound state below the threshold, it has an increased lifetime that is inversely proportional to the square root of the binding energy. Its spatial structure is that of two dark matter particles whose mean separation is also inversely proportional to the square root of the binding energy.
description: 6 pages, 1 figure, final version to appear in Phys. Rev. D
Additional file 1 of Non-adherence to ivermectin in onchocerciasis-endemic communities with persistent infection in the Bono Region of Ghana: a mixed-methods study
Creators: name: Otabil, Kenneth Bentum
name: Basáñez, María-Gloria
name: Ankrah, Blessing
name: Bart-Plange, Emmanuel John
name: Babae, Theophilus Nti
name: Kudzordzi, Prince-Charles
name: Darko, Vera Achiaa
name: Raji, Abdul Sakibu
name: Datsa, Lydia
name: Boakye, Andrews Agyapong
name: Yeboah, Michael Tawiah
name: Fodjo, Joseph Nelson Siewe
name: Schallig, Henk D. F. H.
name: Colebunders, Robert
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Supplementary Material 1
Representation Sparsification with Hybrid Thresholding for Fast SPLADE-based Document Retrieval
Creators: name: Qiao, Yifan
name: Yang, Yingrui
name: He, Shanxiu
name: Yang, Tao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Learned sparse document representations using a transformer-based neural model has been found to be attractive in both relevance effectiveness and time efficiency. This paper describes a representation sparsification scheme based on hard and soft thresholding with an inverted index approximation for faster SPLADE-based document retrieval. It provides analytical and experimental results on the impact of this learnable hybrid thresholding scheme.
description: This paper is published in SIGIR'23
Additional file 1 of Chronic pain in female breast cancer survivors - prevalence, characteristics and contributing factors: a cross-sectional pilot study
Creators: name: Shabangu, Nelisiwe
name: Thebe, Tselane
name: Casey, Michelle
name: Wesselmann, Ursula
name: Parker, Romy
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Phosphine in the Venusian Atmosphere: A Strict Upper Limit from SOFIA GREAT Observations
Creators: name: Cordiner, M. A.
name: Villanueva, G. L.
name: Wiesemeyer, H.
name: Milam, S. N.
name: de Pater, I.
name: Moullet, A.
name: Aladro, R.
name: Nixon, C. A.
name: Thelen, A. E.
name: Charnley, S. B.
name: Stutzki, J.
name: Kofman, V.
name: Faggi, S.
name: Liuzzi, G.
name: Cosentino, R.
name: McGuire, B. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The presence of phosphine (PH$_3$) in the atmosphere of Venus was reported by Greaves et al. (2021a), based on observations of the J=1-0 transition at 267 GHz using ground-based, millimeter-wave spectroscopy. This unexpected discovery presents a challenge for our understanding of Venus's atmosphere, and has led to a reappraisal of the possible sources and sinks of atmospheric phosphorous-bearing gases. Here we present results from a search for PH$_3$ on Venus using the GREAT instrument aboard the SOFIA aircraft, over three flights conducted in November 2021. Multiple PH$_3$ transitions were targeted at frequencies centered on 533 GHz and 1067 GHz, but no evidence for atmospheric PH$_3$ was detected. Through radiative transfer modeling, we derived a disk-averaged upper limit on the PH$_3$ abundance of 0.8 ppb in the altitude range 75-110 km, which is more stringent than previous ground-based studies.
description: Accepted for publication in Geophysical Research Letters
title: Υλοποίηση πρωτοκόλλου CSMA για ασύρματα δίκτυα αισθητήρων σε ενσωματωμένο ραδιόφωνο ελεγχόμενο από μικροελεγκτή 8051
Creators: name: Παπαμεντζελόπουλος Ιωάννης
Publisher: name: Technical University of Crete
Year: 2012

description: Μη διαθέσιμο
Dylan
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Baby, I'm in the Mood for You," "Ain't Gonna Grieve," "Blowin in The Wind," "Quit Your Low Down Ways," "Bound to Lose, Bound to Win," "A Hard Rain's a Gonna Fall," "Don't Think Twice (It's Alright)," and "Walkin' Down the Line" by Bob Dylan play.
New perturbative method for solving the gravitational N-body problem in the general theory of relativity
Creators: name: Turyshev, Slava G.
name: Toth, Viktor T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present a new approach to describe the dynamics of an isolated, gravitationally bound astronomical $N$-body system in the weak field and slow-motion approximation of the general theory of relativity. Celestial bodies are described using an arbitrary energy-momentum tensor and assumed to possess any number of internal multipole moments. The solution of the gravitational field equations in any reference frame is presented as a sum of three terms: i) the inertial flat spacetime in that frame, ii) unperturbed solutions for each body in the system that is covariantly transformed to the coordinates of this frame, and iii) the gravitational interaction term. We use the harmonic gauge conditions that allow reconstruction of a significant part of the structure of the post-Galilean coordinate transformation functions relating global coordinates of the inertial reference frame to the local coordinates of the non-inertial frame associated with a particular body. The remaining parts of these functions are determined from dynamical conditions, obtained by constructing the relativistic proper reference frame associated with a particular body. In this frame, the effect of external forces acting on the body is balanced by the fictitious frame-reaction force that is needed to keep the body at rest with respect to the frame, conserving its relativistic three-momentum. The resulting post-Galilean coordinate transformations have an approximate group structure that extends the Poincar'e group of global transformations to the case of accelerating observers in a gravitational field of $N$-body system. We present and discuss the structure of the metric tensors corresponding to the reference frames involved, the rules for transforming relativistic gravitational potentials, the coordinate transformations between frames and the resulting relativistic equations of motion.
description: revtex4, 48 pages. arXiv admin note: text overlap with arXiv:1109.1796
Römische Schleudergeschosse
Creators: name: Bergk, Theodor
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 55/56 (1875): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
A dispersion-engineered multi-pass cell for single-stage post compression of an Ytterbium laser
Creators: name: Silletti, Laura
name: Wahid, Ammar Bin
name: Escoto, Esmerando
name: Balla, Prannay
name: Rajhans, Supriya
name: Horn, Katinka
name: Winkelmann, Lutz
name: Wanie, Vincent
name: Trabattoni, Andrea
name: Heyl, Christoph M.
name: Calegari, Francesca
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Post-compression methods for ultrafast laser pulses typically face challenging limitations including saturation effects and temporal pulse break-up when large compression factors and broad bandwidths are targeted. To overcome these limitations, we exploit direct dispersion control in a gas-filled multi-pass cell, enabling for the first time single-stage post-compression of 150 fs pulses and up to 250 uJ pulse energy from an Ytterbium (Yb) fiber laser down to sub-20 fs. Dispersion-engineered dielectric cavity mirrors are used to achieve nonlinear spectral broadening dominated by self-phase-modulation over large compression factors and bandwidths at 98% throughput. Our method opens a route towards single-stage post-compression of Yb lasers into the few-cycle regime.
title: Μελέτη χρονικής εξέλιξης των βασικότερων πυρηνικών αντιδράσεων σύντηξης για παραγωγή καθαρής ενέργειας σε μηχανές μαγνητικού περιορισμού πλάσματος
Creators: name: Παναυλάκης Δημήτριος Γ.
Publisher: name: Technical University of Crete
Year: 2010

description: 1.Εισαγωγή -- 2.Ιστορική αναδρομή -- 3.Εισαγωγή στην πυρηνική Σύντηξη -- 4.Πως λειτουργεί η Μαγνητική Σύντηξη -- 5.Θεωρία αντιδράσεων θερμοπυρηνικής σύντηξης -- 6.Αντιδράσεις θερμοπυρηνικής σύντηξης -- 7.Εφαρμογές:σύντηξη σε χαμηλές θερμοκρασίες
Grating lobe reduction in plane wave imaging with angular compounding using subtraction of coherent signals
Creators: name: Kou, Zhengchang
name: Miller, Rita J.
name: Oelze, Michael L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Plane wave imaging (PWI) with angular compounding has gained in popularity over recent years because it provides high frame rates and good image properties. However, most linear arrays used in clinical practice have a pitch that is equal to than the wavelength of ultrasound. Hence, the presence of grating lobes is a concern for PWI using multiple transmit angles. The presence of grating lobes produces clutter in images and reduces the ability to observe tissue contrast. Techniques to reduce or eliminate the presence of grating lobes for PWI using multiple angles will result in improved image quality. Null subtraction imaging (NSI) is a nonlinear beamforming technique that has been explored for improving the lateral resolution of ultrasonic imaging. However, the apodization scheme used in NSI also eliminates or greatly reduces the presence of grating lobes. Imaging tasks using NSI were evaluated in simulations and physical experiments involving tissue-mimicking phantoms and rat tumors in vivo. Images created with NSI were compared with images created using traditional delay and sum (DAS) with Hann apodization and images created using a generalized coherence factor (GCF). NSI was observed to greatly reduce the presence of grating lobes in ultrasonic images, compared to DAS with Hann and GCF, while maintaining spatial resolution and contrast in the images. Therefore, NSI can provide a novel means of creating images using PWI with multiple steering angles on clinically available linear arrays while reducing the adverse effects associated with grating lobes.
title: Διερεύνηση της επιρροής των τοιχοπληρώσεων στη σεισμική απόκριση πλαισιακών κατασκευών οπλισμένου σκυροδέματος
Creators: name: Πασπάτης Λάμπρος Γ.
Publisher: name: Technical University of Crete
Year: 2009

description: Μη διαθέσιμο
Study of e+e- --> omega pi0 --> pi0 pi0 gamma in the energy range 1.05--2.00 GeV with SND
Creators: name: Achasov, M. N.
name: Aulchenko, V. M.
name: Barnyakov, A. Yu.
name: Beloborodov, K. I.
name: Berdyugin, A. V.
name: Bogdanchikov, A. G.
name: Botov, A. A.
name: Dimova, T. V.
name: Druzhinin, V. P.
name: Golubev, V. B.
name: Grevtsov, K. A.
name: Kardapoltsev, L. V.
name: Kharlamov, A. G.
name: Kovrizhin, D. P.
name: Koop, I. A.
name: Korol, A. A.
name: Koshuba, S. V.
name: Lysenko, A. P.
name: Martin, K. A.
name: Nesterenko, I. N.
name: Obrazovsky, A. E.
name: Pakhtusova, E. V.
name: Perevedentsev, E. A.
name: Romanov, A. L.
name: Serednyakov, S. I.
name: Silagadze, Z. K.
name: Skovpen, K. Yu.
name: Skrinsky, A. N.
name: Surin, I. K.
name: Tikhonov, Yu. A.
name: Vasiljev, A. V.
name: Shatunov, P. Yu.
name: Shatunov, Yu. M.
name: Shtol, D. A.
name: Romanov, A. L.
name: Zemlyansky, I. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The cross section for the process e+e- --> omega pi0 --> pi0 pi0 gamma has been measured in the energy range 1.05--2.00 GeV. The experiment has been performed at the e+e- collider VEPP-2000 with the SND detector. The measured e+e- --> omega pi0 cross section above 1.4 GeV is the most accurate to date. Below 1.4 GeV our data are in good agreement with the previous SND and CMD-2 measurements. Data on the e+e- --> omega pi0 cross section are well described by the VMD model with two excited rho-like states. From the measured cross section we have extracted the gamma^* --> omega pi0 transition form factor. It has been found that the VDM model cannot describe simultaneously our data and data obtained from the omega --> pi0 mu+ mu- decay. We have also tested CVC hypothesis comparing our results on the e+e- --> omega pi0 cross section with data on the tau- --> omega pi- nu_{tau} decay.
description: 12 pages, 6 figures
Disclosures of illness by doctors to their patients: A qualitative study of doctors with HIV and other serious disorders
Creators: name: Klitzman, Robert L.
name: Weiss, Jonathan
Publisher: name: Columbia University
Year: 2006
Subjects: Physician and patient
Communication in medicine
Health--Decision making
Self-disclosure--Health aspects

description: Objective: To examine issues concerning doctor's disclosures of their illness to their patients. Methods: We interviewed 50 health care providers who had serious illnesses concerning their experiences with disclosures of their illness to patients. Results: With regard to their diagnoses, these doctors struggled with whether, when, how and what to tell patients. These issues were prominent, and had broader implications for doctor–patient communication and interactions among doctors with HIV, but arose among doctors with other diagnoses as well. Particularly with HIV, questions emerged concerning whether to: tell patients without being asked, respond only if asked, tell the truth, lie or misrepresent the information. Patients appeared to face dilemmas of whether to ask about a doctor's diagnosis, and whether they had a right to know. Some patients hesitated to ask or felt ambivalent about knowing, as the illness could threaten the doctor–patient relationship. At times, patients learned of a doctor's illness only after the latter had died. Disclosures could strengthen or skew the doctor–patient relationship. We present a model and framework – concerning the complexities of these communications – that can be useful in exploring other key aspects of doctor–patient interactions. Conclusion: These data raise larger questions of what information patients should be told about physicians. Medical education needs to address these issues better. Practice implications: Physicians should realize that patients may be anxious about these concerns, and may view the pros and cons of physicians’ disclosures of illness differently than do these physicians themselves.
title: Πεπλεγμένες αριθμητικές μέθοδοι πεπερασμένων όγκων για την επίλυση των εξισώσεων ρηχών υδάτων
Creators: name: Κοκκινάκης Γεώργιος
Publisher: name: Technical University of Crete
Year: 2010

description:  Εισαγωγή -- 2. Εξισώσεις ρηχών υδάτων στην μια διάσταση -- 3. Αριθμητικά σχήματα σε μία χωρική διάσταση -- 4. Επέκταση των  εξισώσεων ρηχών υδάτων στις δύο διαστάσεις
Jahresbericht für das Vereinsjahr 1876 (resp. Pfingsten 1876 - 77)
Creators: name: Redaktion, Die
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 60 (1877): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande