cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A first look back: model performance under Solvency II
Creators: name: Korn, Ralf
name: Stahl, Gerhard
Publisher: name: Universität Ulm
Year: 2023
Subjects: subject: Solvency II
subject: Backtesting
subject: Capital requirement
subject: DDC 330 / Economics

description: Abstract We consider an empirical backtesting for the Solvency Capital Required (SCR) under Solvency II. Based on empirical facts that the Basic own Funds (BoF) can be assumed to evolve log-normally and have a much lower volatility than the corresponding equity for our test data, we make a proposal based on Earnings at Risk (EaR) that can be used to reduce the biases from overshooting SCR estimates in a prudential way.
PROMESSAS E COMPROMISSOS
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 08 – n. 51/2020
Terminada a campanha eleitoral para as eleições municipais do domingo próximo, renovada em mim está a exata compreensão do que sejam promessas e compromissos.
title: Η διοίκηση έργων πληροφορικής στο δημόσιο τομέα και στην Ανεξάρτητη Αρχή Δημοσίων Εσόδων
title: The management of information projects in public sector and Independent Authority of Public Revenue
titleType: AlternativeTitle
Creators: name: Ζαχαροπούλου, Χριστίνα
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Δημόσια διοίκηση
Δημόσιος τομέας
Διαχείριση έργων πληροφορικής
Διαχείριση έργου
Μεθοδολογία διαχείρισης έργων
Πληροφοριακά συστήματα
Ηλεκτρονική διακυβέρνηση
Project management
PM2
Public administration

description: Η παρούσα διπλωματική εργασία αφορά το ερευνητικό πεδίο της διοίκησης- διαχείρισης έργων στην πληροφορική. Γίνεται εκτενής ανάλυση του πεδίου διοίκησης έργων και των ορισμών του. Δηλαδή τον ορισμό της διοίκησης έργου, το τρίγωνο του έργου (κόστος, χρόνος, ποιότητα), η σημασία των πόρων και των περιορισμών σε ένα έργο, η ομάδα έργου - stakeholders, των κινδύνων και των προβλημάτων των έργων. Επίσης γίνεται αναφορά στις μεθοδολογίες Διαχείρησης Έργων (Καταρράκτη, Agile, PMI, PM2) και στα εργαλεία διαχείρισης αυτών. Σημαντικό ερώτημα που τίθεται στην συγκεκριμένη εργασία είναι κατά πόσο ακολουθούνται οι μεθοδολογίες διαχείρισης έργων στα πληροφοριακά συστήματα των δημόσιων οργανισμών. Περιγράφονται αναλυτικά τα έργα πληροφορικής, οι φάσεις των έργων και τα προβλήματα που έχουν προκύψει στο παρελθόν. Καταγράφονται αναλυτικά οι προσπάθειες της διοίκησης των δημόσιων οργανισμών και της Ανεξάρτητης Αρχής Δημοσίων Εσόδων για την υιοθέτηση των νέων μεθοδολογιών. Δίνονται παραδείγματα καλών πρακτικών έργων τόσο στην Ελλάδα όσο και στο Εξωτερικό. Διεξάγεται ποιοτική έρευνα με τη διαδικασία συνεντεύξεων από στελέχη των οργανισμών και της Ανεξάρτητης Αρχή Δημοσιών Εσόδων που ειδικεύονται στη διοίκηση και στη διαχείριση έργων πληροφορικής. Τα ερωτήματα που τέθηκαν είναι ποια μεθοδολογία χρησιμοποιείται και κατά πόσο είναι ωφέλιμη για τους οργανισμούς. Βοηθάει τους οργανισμούς η υιοθέτηση της μεθοδολογίας για να επωφεληθούν από τα πλεονεκτήματα της επιστήμης της Διοίκησης έργων και της Ηλεκτρονικής Διακυβέρνησης; Επίσης εξάγονται συμπέρασμα με τη δυνατότητα περαιτέρω βελτίωσης της εφαρμογής της μεθοδολογίας της διαχείρισης έργων.
Brief [Jo]anni Georgio Wagnero
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1603

description: von [Hans Jakob vom Staal]
description: Brief Nr. 531, befindet sich auf der zweiten und dritten Seite zwischen Nr. 379 und Nr. 380.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
Sequence-dependent spin-selective tunneling along double-stranded DNA
Creators: name: Guo, Ai-Min
name: Sun, Qing-feng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We report spin-selective tunneling of electrons along natural and artificial double-stranded DNA (dsDNA) sandwiched by nonmagnetic leads. The results reveal that the spin polarization strongly depends on the dsDNA sequence and is dominated by its end segment. Both genomic and artificial dsDNA could be efficient spin filters. The spin-filtering effects are sensitive to point mutation which occurs in the end segment. These results are in good agreement with recent experiments and are robust against various types of disorder, and could help for designing DNA-based spintronic devices.
description: 5 pages, 5 figures
Transient attention does not alter the eccentricity effect in estimation of duration
Creators: name: Krug, Alina
name: Eberhardt, Lisa Valentina
name: Huckauf, Anke
Publisher: name: Universität Ulm
Year: 2023
Subjects: subject: Duration estimation
subject: Time perception
subject: Visual periphery
subject: Eccentricity
subject: Transient attention
subject: Exogenous cueing
subject: Spatial attention
subject: DDC 150 / Psychology

description: Abstract Previous research investigating the influence of stimulus eccentricity on perceived duration showed an increasing duration underestimation with increasing eccentricity. Based on studies showing that precueing the stimulus location prolongs perceived duration, one might assume that this eccentricity effect is influenced by spatial attention. In the present study, we assessed the influence of transient covert attention on the eccentricity effect in duration estimation in two experiments, one online and one in a laboratory setting. In a duration estimation task, participants judged whether a comparison stimulus presented near or far from fixation with a varying duration was shorter or longer than a standard stimulus presented foveally with a constant duration. To manipulate transient covert attention, either a transient luminance cue was used (valid cue) to direct attention to the position of the subsequent peripheral comparison stimulus or all positions were marked by luminance (neutral cue). Results of both experiments yielded a greater underestimation of duration for the far than for the near stimulus, replicating the eccentricity effect. Although cueing was effective (i.e., shorter response latencies for validly cued stimuli), cueing did not alter the eccentricity effect on estimation of duration. This indicates that cueing leads to covert attentional shifts but does not account for the eccentricity effect in perceived duration.
Brief Henrico Tochtermanno
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1599

description: von [Hans Jakob vom Staal]
description: Brief Nr. 506.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
title: Universitätsbibliothek Marburg Ms. 375,1-3: Priscianus Caesariensis
Creators: name: Priscianus
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: [Handschrift] Universitätsbibliothek Marburg Ms. 375,1-3: Priscianus Caesariensis. - 1 Doppelblatt und 2 halbe Blätter. - Beschreibstoff: Pergament; 33,2 x 21,3 (25,5 x 18) cm. - Erschienen: [Fritzlar oder Fulda], [um 800]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 375,1-3. - Bemerkungen: Fragment. Frühere Signatur: Mscr. 375,1-3. Ausführliche Beschreibung: Heyne, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg; Wiesbaden : Harrassowitz, 2002; S. 268. - Digitalisiert 2023
Brief Joanni Conrado à Vorburg
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1597

description: von [Hans Jakob vom Staal]
description: Brief Nr. 528.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief an [Méry] de Vic
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1598

description: von Jo[hann] Jac[obus vom] Staal
description: Brief Nr. 523.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
Vertical Information Content Of Nadir Measurements Of Tropospheric No2 From Satellite
Creators: name: Hilboll, Andreas
name: Richter, Andreas
name: Burrows, John P.
Publisher: name: Zenodo
Year: 2014
Subjects: Remote sensing
NO2
Profile retrieval
Optimal estimation
Atmospheric sounding

description: Poster presented at the EGU General Assembly 2014 in Vienna/Austria.
Local field theory from the expanding universe at late times in the IIB matrix model
Creators: name: Nishimura, Jun
name: Tsuchiya, Asato
Publisher: name: arXiv
Year: 2012
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: Recently we have shown that (3+1)-dimensional expanding universe appears dynamically and uniquely from the Lorentzian version of the IIB matrix model, which is considered as a nonperturbative formulation of superstring theory. Similarly, it is possible that the Standard Model appears uniquely at the electroweak scale from the same model at late times. In order to pursue such a possibility, we discuss how to derive the effective local field theory for the massless modes that appear at late times in the same formulation. As a concrete example, we consider the massless modes associated with the spontaneous breaking of (9+1)-dimensional Poincare symmetry and supersymmetry.
description: 11 pages; typos corrected (v2), revised argument in section 3 (v3)
title: Advances in liquid phase soft-x-ray photoemission spectroscopy
title: A new experimental setup at BESSY II
titleType: Subtitle
Creators: name: Seidel, Robert
name: Pohl, Marvin N.
name: Ali, Hebatallah
name: Winter, Bernd
name: Aziz, Emad F.
Publisher: name: Freie Universität Berlin
Year: 2017
Subjects: subject: soft-x-ray photoemission spectroscopy
subject: BESSY II
subject: DDC::500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: A state-of-the-art experimental setup for soft X-ray photo- and Auger-electron spectroscopy from liquid phase has been built for operation at the synchrotron-light facility BESSY II, Berlin. The experimental station is named SOL3, which is derived from solid, solution, and solar, and refers to the aim of studying solid–liquid interfaces, optionally irradiated by photons in the solar spectrum. SOL3 is equipped with a high-transmission hemispherical electron analyzer for detecting electrons emitted from small molecular aggregates, nanoparticles, or biochemical molecules and their components in (aqueous) solutions, either in vacuum or in an ambient pressure environment. In addition to conventional energy-resolved electron detection, SOL3 enables detection of electron angular distributions by the combination of a ±11° acceptance angle of the electron analyzer and a rotation of the analyzer in the polarization plane of the incoming synchrotron-light beam. The present manuscript describes the technical features of SOL3, and we also report the very first measurements of soft-X-ray photoemission spectra from a liquid microjet of neat liquid water and of TiO2-nanoparticle aqueous solution obtained with this new setup, highlighting the necessity for state-of-the-art electron detection.
Spin-orbital quantum liquid on the honeycomb lattice
Creators: name: Corboz, P.
name: Lajkó, M.
name: Läuchli, A. M.
name: Penc, K.
name: Mila, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In addition to low-energy spin fluctuations, which distinguish them from band insulators, Mott insulators often possess orbital degrees of freedom when crystal-field levels are partially filled. While in most situations spins and orbitals develop long-range order, the possibility for the ground state to be a quantum liquid opens new perspectives. In this paper, we provide clear evidence that the SU(4) symmetric Kugel-Khomskii model on the honeycomb lattice is a quantum spin-orbital liquid. The absence of any form of symmetry breaking - lattice or SU(N) - is supported by a combination of semiclassical and numerical approaches: flavor-wave theory, tensor network algorithm, and exact diagonalizations. In addition, all properties revealed by these methods are very accurately accounted for by a projected variational wave-function based on the π-flux state of fermions on the honeycomb lattice at 1/4-filling. In that state, correlations are algebraic because of the presence of a Dirac point at the Fermi level, suggesting that the symmetric Kugel-Khomskii model on the honeycomb lattice is an algebraic quantum spin-orbital liquid. This model provides a good starting point to understand the recently discovered spin-orbital liquid behavior of Ba_3CuSb_2O_9. The present results also suggest to choose optical lattices with honeycomb geometry in the search for quantum liquids in ultra-cold four-color fermionic atoms.
description: 10 pages, 7 figures
Brief Urso Surio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1595

description: von [Hans Jakob vom Staal]
description: Brief Nr. 502, auf der Rückseite befindet sich Nr. 501.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Resistance Evolution Against Antimicrobial Peptides in Staphylococcus aureus Alters Pharmacodynamics Beyond the MIC
Creators: name: Shazely, Baydaa El
name: Yu, Guozhi
name: Johnston, Paul R.
name: Rolff, Jens
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: resistance evolution
subject: Hill coefficent
subject: pharmacodynamics
subject: pexiganan
subject: melittin
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Antimicrobial peptides (AMPs) have been proposed as a promising class of new antimicrobials partly because they are less susceptible to bacterial resistance evolution. This is possibly caused by their mode of action but also by their pharmacodynamic characteristics, which differ significantly from conventional antibiotics. Although pharmacodynamics of antibiotic resistant strains have been studied, such data are lacking for AMP resistant strains. Here, we investigated if the pharmacodynamics of the Gram-positive human pathogen Staphylococcous aureus evolve under antimicrobial peptide selection. Interestingly, the Hill coefficient (kappa κ) evolves together with the minimum inhibition concentration (MIC). Except for one genotype, strains harboring mutations in menF and atl, all mutants had higher kappa than the non-selected sensitive controls. Higher κ results in steeper pharmacodynamic curve and, importantly, in a narrower mutant selection window. S. aureus selected for resistance to melittin displayed cross resistant against pexiganan and had as steep pharmacodynamic curves (high κ) as pexiganan-selected lines. By contrast, the pexiganan-sensitive tenecin-selected lines displayed lower κ. Taken together, our data demonstrate that pharmacodynamic parameters are not fixed traits of particular drug/strain interactions but actually evolve under drug treatment. The contribution of factors such as κ and the maximum and minimum growth rates on the dynamics and probability of resistance evolution are open questions that require urgent attention.
PUNIÇÃO OU COMPLACÊNCIA
Creators: name: Santana, José Cláudio Pavão
Publisher: name: Zenodo - Cadernos da Pena do Pavao
Year: 2023

description: Ano 08 – n. 55/2020
Acaba de ser veiculada pelas redes sociais a notícia de que o Supremo Tribunal Federal formou maioria, ainda virtual, para impedir a aventura sobre a possibilidade de reeleição de presidentes das mesas da Câmara e do Senado Federais, para a mesma legislatura.
Additional file 1 of Efficacy of selenium supplementation for mild-to-moderate Graves’ ophthalmopathy in a selenium-sufficient area (SeGOSS trial): study protocol for a phase III, multicenter, open-label, randomized, controlled intervention trial
Creators: name: Chung, Chae Won
name: Jung, Kyong Yeun
name: Jung, Eun Hye
name: Lee, Min Joung
name: Park, Young Joo
name: Lee, Jeong Kyu
name: Ahn, Hwa Young
name: Cho, Sun Wook
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. SPIRIT 2013 Checklist. Recommended items to address in a clinical trial protocol and related documents.
Savoring as an intervention for cannabis use: acceptability, feasibility, and preliminary results
Creators: name: Mian, Maha N.
name: Earleywine, Mitch
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
classificationCode: 111714
subject: Mental Health

description: Although savoring appears protective against cannabis problems, researchers have yet to apply it to reduce cannabis-related harms. Study I surveyed a large (N = 557, Mage = 36.9, 50.1% Male, 73% White) sample who rated a hypothetical savoring intervention as feasible and acceptable; those who savored more reported fewer cannabis problems, less use, and less intoxication. Study II, a pilot experiment (N = 26, Mage = 18, 34.6% Male, 42% White), randomly assigned participants to either a week-long savoring intervention (n = 15) or control group (n = 11). Savorers reported moderate to large decreases across time in cannabis use, amount consumed, and intoxication as well as increases in happiness and negative cannabis expectancies. Both studies suggest that savoring can reduce use and protect against negative outcomes. These preliminary findings suggest that further work to examine the efficacy of savoring as an intervention for substance use appears warranted.
Sharp polynomial bounds on the number of Pollicott-Ruelle resonances
Creators: name: Datchev, Kiril
name: Dyatlov, Semyon
name: Zworski, Maciej
Publisher: name: arXiv
Year: 2012
Subjects: subject: Spectral Theory (math.SP)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We give a sharp polynomial bound on the number of Pollicott-Ruelle resonances. These resonances, which are complex numbers in the lower half-plane, appear in expansions of correlations for Anosov contact flows. The bounds follow the tradition of upper bounds on the number of scattering resonances and improve a recent bound of Faure-Sjöstrand. The complex scaling method used in scattering theory is replaced by an approach using exponentially weighted spaces introduced by Helffer-Sjöstrand in scattering theory and by Faure-Sjöstrand in the theory of Anosov flows.
description: 18 pages; minor revision based on referee's comments. To appear in Erg. Theory Dyn. Syst
Phases and relativity in atomic gravimetry
Creators: name: Jaekel, Marc-Thierry
name: Lamine, Brahim
name: Reynaud, Serge
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The phase observable measured by an atomic gravimeter built up on stimulated Raman transitions is discussed in a fully relativistic context. It is written in terms of laser phases which are invariant under relativistic gauge transformations. The dephasing is the sum of light and atomic contributions which are connected to one another through their interplay with conservation laws at the interaction vertices. In the case of a closed geometry, a compact form of the dephasing is written in terms of a Legendre transform of the laser phases. These general expressions are illustrated by discussing two techniques used for compensating the Doppler shift, one corresponding to chirped frequencies and the other one to ramped variations.
description: 7 pages, 1 figure
Brief Aurelio Vergerio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1597

description: von [Hans Jakob vom Staal]
description: Brief Nr. 519.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Additional file 2 of Efficacy of selenium supplementation for mild-to-moderate Graves’ ophthalmopathy in a selenium-sufficient area (SeGOSS trial): study protocol for a phase III, multicenter, open-label, randomized, controlled intervention trial
Creators: name: Chung, Chae Won
name: Jung, Kyong Yeun
name: Jung, Eun Hye
name: Lee, Min Joung
name: Park, Young Joo
name: Lee, Jeong Kyu
name: Ahn, Hwa Young
name: Cho, Sun Wook
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Graves’ Ophthalmopathy Quality of Life Questionnaire (GO-QOL). Detailed items of GO-QOL questionnaire.
International Journal Of Mathematical Combinatorics, Volume 3, 2008
Creators: name: Mao, Linfan (Editor-in-Chief)
Publisher: name: Zenodo
Year: 2008

description: The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 460 pages approx. per volume, which publishes original research papers and survey articles in all aspects of Smarandache multi-spaces, Smarandache geometries, mathematical combinatorics, non-euclidean geometry and topology and their applications to other sciences.
title: Aufbau eines Game Labs an der UB Marburg : Herausforderungen und Perspektiven
title: Founding a Game Lab at the UB Marburg : Challenges and Perspectives
titleType: AlternativeTitle
Creators: name: Mosel, Michael
name: Müllerleile, Tobias
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Game Lab
Medienlabor
media lab
Computerspiele
game lab
computer games
Library & information sciences
Bibliotheks- und Informationswissenschaft

description: Aufgrund ihrer Popularität werden Computerspiele mittlerweile wissenschaftlich als ein zentrales Leitmedium der Gegenwartskultur in den Blick genommen. Dessen ungeachtet fristen entsprechende Titel in den Beständen wissenschaftlicher Bibliotheken noch ein Nischendasein. Um Forschung und Lehre über und mit Spielen optimal zu unterstützen, hat sich die Universitätsbibliothek Marburg daher dazu entschlossen, ein Game Lab einzurichten. Der Beitrag beleuchtet die damit verbundenen Herausforderungen organisatorischer, rechtlicher und technischer Art und gibt einen Ausblick auf Nutzungsszenarien und Entwicklungsperspektiven.
Brief Joanni Guilelmo Stuckio
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1595

description: von Jo[hann] Jac[obo vom] Staal
description: Brief Nr. 500.
description: Mit Siegelresten.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho
Brief Joanni Ludovico à Steinbruck
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1585

description: von Jo[hann] Jac[obus vom] Staal
description: Brief Nr. 494.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Feedback Allocation For OFDMA Systems With Slow Frequency-domain Scheduling
Creators: name: Ganapathy, Harish
name: Banerjee, Siddhartha
name: Dimitrov, Nedialko B.
name: Caramanis, Constantine
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the problem of allocating limited feedback resources across multiple users in an orthogonal-frequency-division-multiple-access downlink system with slow frequency-domain scheduling. Many flavors of slow frequency-domain scheduling (e.g., persistent scheduling, semi-persistent scheduling), that adapt user-sub-band assignments on a slower time-scale, are being considered in standards such as 3GPP Long-Term Evolution. In this paper, we develop a feedback allocation algorithm that operates in conjunction with any arbitrary slow frequency-domain scheduler with the goal of improving the throughput of the system. Given a user-sub-band assignment chosen by the scheduler, the feedback allocation algorithm involves solving a weighted sum-rate maximization at each (slow) scheduling instant. We first develop an optimal dynamic-programming-based algorithm to solve the feedback allocation problem with pseudo-polynomial complexity in the number of users and in the total feedback bit budget. We then propose two approximation algorithms with complexity further reduced, for scenarios where the problem exhibits additional structure.
description: Accepted to IEEE Transactions on Signal Processing
title: Universitätsbibliothek Marburg Ms. or. 16: [Sammelhandschrift] XVI. – L. S. Cod. C.
Creators: name: Anonym
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: [Handschrift] Universitätsbibliothek Marburg Ms. or. 16: [Sammelhandschrift] XVI. – L. S. Cod. C. - 11 Blätter. - Beschreibstoff Papier. - Blattformat 18,5 x 22 cm. - Erschienen: [Südostasien?, 10. / 16. Jahrhundert]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. or. 16. - Bemerkungen: [Teil 1.: Koranverse mit Gebeten und einer Predigt. Teil 2.: Kitāb an-Nikāḥ]. Ausführliche Beschreibung: Al-Toma, Adnan Jawad: Die arabischen Handschriften der Universitätsbibliothek Marburg; Marburg : Universitätsbibliothek, [1979]; S. 93 ff. - Digitalisiert 2023
Clinical Investigation of the Safety and Efficacy of Low-temperature Plasma as an Adjuvant Treatment for Mild to Moderate Fungal Keratitis: A Pilot Study
Creators: name: Cheng, Jingyi
name: Wei, Anji
name: Hong, Jiaxu
name: Xu, Jianjiang
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences

description: This pilot study assessed the safety and efficacy of low-temperature plasma (LTP) as an adjuvant treatment for mild to moderate fungal keratitis (FK). Thirty FK patients were randomized into LTP (n = 15) and control (n = 15) groups. Patients were followed up for 3 months. The best-corrected visual acuity (BCVA), ulcer size, and hypopyon height were measured; healing time or complications were documented and compared. More patients in the LTP group healed completely (11/15 in 48 days) compared with the control group (4/15 in 59.5 days), and those patients had a deeper initial ulcer depth and exhibited better BCVA improvements. Four patients failed after LTP treatment due to perforation, increased inflammatory infiltration, or hypopyon; those with more hypopyon were more likely to fail. LTP could be a promising adjuvant therapy to topical antifungal drugs for mild to moderate FK.
Multi-configuration time-dependent density-functional theory based on range separation
Creators: name: Fromager, Emmanuel
name: Knecht, Stefan
name: Jensen, Hans Jørgen Aa.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Multi-configuration range-separated density-functional theory is extended to the time-dependent regime. An exact variational formulation is derived. The approximation, which consists in combining a long-range Multi-Configuration-Self-Consistent Field (MCSCF) treatment with an adiabatic short-range density-functional (DFT) description, is then considered. The resulting time-dependent multi-configuration short-range DFT (TD-MC-srDFT) model is applied to the calculation of singlet excitation energies in H2, Be and ferrocene, considering both short-range local density (srLDA) and generalized gradient (srGGA) approximations. In contrast to regular TD-DFT, TD-MC-srDFT can describe double excitations. As expected, when modeling long-range interactions with the MCSCF model instead of the adiabatic Buijse-Baerends density-matrix functional as recently proposed by Pernal [K. Pernal, J. Chem. Phys. 136, 184105 (2012)], the description of both the 1^1D doubly-excited state in Be and the 1^1Σ^+_u state in the stretched H2 molecule are improved, although the latter is still significantly underestimated. Exploratory TD-MC-srDFT/GGA calculations for ferrocene yield in general excitation energies at least as good as TD-DFT/CAM-B3LYP, and superior to wave-function (TD-MCSCF, symmetry adapted cluster-configuration interaction) and TD-DFT results based on LDA, GGA, and hybrid functionals.
description: 41 pages, 4 figures, 2 tables
International Journal Of Mathematical Combinatorics, Volume 3, 2009
Creators: name: Mao, Linfan (Editor-in-Chief)
Publisher: name: Zenodo
Year: 2009

description: The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 460 pages approx. per volume, which publishes original research papers and survey articles in all aspects of Smarandache multi-spaces, Smarandache geometries, mathematical combinatorics, non-euclidean geometry and topology and their applications to other sciences.
GAMIFICATION FOR ONLINE EQUITY: A QUALITATIVE STUDY OF MALE COMMUNITY COLLEGE STUDENTS OF COLOR ENGAGED IN GAMIFIED ASYNCHRONOUS ONLINE COURSES
Creators: name: Vandervort, Kimberly
Publisher: name: Zenodo
Year: 2023
Subjects: gamification
game-based learning
community college
asynchronous online courses
online education
men of color

description: This qualitative phenomenological study strove to understand the experiences of male community college students of color participating in asynchronous online courses that incorporated elements of gamification. Although online courses theoretically provide opportunities to increase access to higher education, persistent equity gaps, particularly for men of color, continue to undermine the full potential of this educational modality. This study sought to understand if redesigning asynchronous online courses to incorporate gamification and game-based learning might increase student engagement for men of color and enable them to achieve a greater sense of community and belonging, which in turn may reduce equity gaps. Fourteen male students of color attending the same community college shared their experiences during focus groups and individual interviews. Using critical race theory and Astin’s theories as theoretical foundations, this study’s findings revealed that gamification and games, when intentionally applied to the design of asynchronous online courses to achieve specific course goals and outcomes, positively impacted the learning, engagement, and sense of community for male community college students of color. A clear implication that may be drawn from this study is that asynchronous online education, as it is currently designed and delivered, must evolve to better serve the needs of men of color; practitioners, educational leaders, and policymakers must invest time as well as human and financial resources to further innovate and build authentic learning communities in the online environment.
title: Bismuth Amides Mediate Facile and Highly Selective Pn–Pn Radical-Coupling Reactions (Pn =N, P, As)
Creators: name: Oberdorf, Kai
name: Hanft, Anna
name: Ramler, Jacqueline
name: Krummenacher, Ivo
name: Bickelhaupt, F. Matthias
name: Poater, Jordi
name: Lichtenberg, Crispin
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: heavier pnictogens
bismuth amides
aminyl radicals
diphosphanes
Chemistry & allied sciences
Chemie
radical coupling

description: The controlled release of well-defined radical species under mild conditions for subsequent use in selective reactions is an important and challenging task in synthetic chemistry. We show here that simple bismuth amide species [Bi(NAr2)3] readily release aminyl radicals [NAr2]C at ambient temperature in solution. These reactions yield the corresponding hydrazines, Ar2N-NAr2, as a result of highly selective N-N coupling. The exploitation of facile homolytic Bi-Pn bond cleavage for Pn-Pn bond formation was extended to higher homologues of the pnictogens (Pn =N–As): homoleptic bismuth amides mediate the highly selective dehydrocoupling of HPnR2 to give R2Pn-PnR2. Analyses by NMR and EPR spectroscopy, single-crystal X-ray diffraction, and DFT calculations reveal low Bi-N homolytic bond-dissociation energies, suggest radical coupling in the coordination sphere of bismuth, and reveal electronic and steric parameters as effective tools to control these reactions.
Multi-level Dynamical Systems: Connecting the Ruelle Response Theory and the Mori-Zwanzig Approach
Creators: name: Wouters, Jeroen
name: Lucarini, Valerio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 82C05, 82C31

description: In this paper we consider the problem of deriving approximate autonomous dynamics for a number of variables of a dynamical system, which are weakly coupled to the remaining variables. In a previous paper we have used the Ruelle response theory on such a weakly coupled system to construct a surrogate dynamics, such that the expectation value of any observable agrees, up to second order in the coupling strength, to its expectation evaluated on the full dynamics. We show here that such surrogate dynamics agree up to second order to an expansion of the Mori-Zwanzig projected dynamics. This implies that the parametrizations of unresolved processes suited for prediction and for the representation of long term statistical properties are closely related, if one takes into account, in addition to the widely adopted stochastic forcing, the often neglected memory effects.
description: 14 pages, 1 figure
Brief an [Bartholomäus Welden]
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1599

description: von [Hans Jakob vom Staal]
description: Brief Nr. 537.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2017/August 2022 HAN-Katalogisierungsregeln iho/HBr
International Journal Of Mathematical Combinatorics, Volume 3, 2010
Creators: name: Mao, Linfan (Editor-in-Chief)
Publisher: name: Zenodo
Year: 2010

description: The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 460 pages approx. per volume, which publishes original research papers and survey articles in all aspects of Smarandache multi-spaces, Smarandache geometries, mathematical combinatorics, non-euclidean geometry and topology and their applications to other sciences.
Penner Type Ensemble for Gauge Theories Revisited
Creators: name: Krefl, Daniel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Penner type beta-ensemble for Omega-deformed N=2 SU(2) gauge theory with two massless flavors arising as a limiting case from the AGT conjecture is considered. The partition function can be calculated perturbatively in a saddle-point approximation. A large N limit reproduces the gauge theory partition function expanded in a strong coupling regime, for any beta and beyond tree-level, confirming previous results obtained via special geometry and the holomorphic anomaly equation. The leading terms and gap of the gauge theory free energy at the monopole/dyon point follow as a corollary.
description: 6 pages
International Journal Of Mathematical Combinatorics, Volume 3, 2011
Creators: name: Mao, Linfan (Editor-in-Chief)
Publisher: name: Zenodo
Year: 2011

description: The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 460 pages approx. per volume, which publishes original research papers and survey articles in all aspects of Smarandache multi-spaces, Smarandache geometries, mathematical combinatorics, non-euclidean geometry and topology and their applications to other sciences.
Essays on empirical asset pricing
Creators: name: Denny, Adam
Publisher: name: Imperial College London
Year: 2020

description: This thesis examines issues in factor investing, return predictability, and applications of machine learning to empirical asset pricing. The first chapter provides an empirical evaluation of potential explanations for the value premium by extending the decomposition methodology of Hou and Loh (2016). I find that cross-sectional differences in financial leverage are able to explain up to 60 percent of the value premium in individual stocks and book-to-market and industry sorted portfolios. I do not find support for behavioural explanations, or rational explanations based on adjustment costs, human capital, or operating leverage. I show that most of the explanatory power of financial leverage is concentrated in the short-term, and a factor based on financial leverage is able to partially explain the alpha of the Fama-French HML factor. The second chapter provides a comprehensive analysis on the use of supervised machine learning methods for multi-asset class return predictability. I extend the existing literature in three dimensions: time, asset class, and geographical coverage. Using the longest available time series of asset returns and macroeconomic fundamentals across multiple countries I show that most machine learning models fail to beat the historical mean benchmark out-of-sample, often by a large margin. However, combining forecasts across models dramatically improves performance, and leads to sizeable gains for mean-variance investors in trading strategies that aim to exploit return predictability. Additionally, I show that forecasting performance is better in bad times and when market volatility is high. The third chapter documents a new phenomenon I call 'cross-factor momentum.' I show that standard time series momentum strategies applied to long-short equity factors can be enhanced by incorporating predictability from other factors. Exploiting the robust cross-correlation structure between factors can improve Sharpe ratios by up to 1.7 times compared to standard strategies, with lower drawdowns and similar trading costs. This finding holds in international data, cannot be explained by intermediary asset pricing models, and is only partially explained by fund flows.
Large magnetoelectric effect in mechanically mediated structure of TbFe2, Pb(Zr,Ti)O3 and nonmagnetic flakes
Creators: name: Bi, K.
name: Wang, Y. G.
name: Pan, D. A.
name: Wu, W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetoelectric (ME) effect has been studied in a structure of a magnetostrictive TbFe2 alloy, two piezoelectric Pb(Zr,Ti)O3 (PZT) ceramics, and two nonmagnetic flakes. The ME coupling originates from the magnetic-mechanical-electric transform of the magnetostrictive effect in TbFe2 and the piezoelectric effect in PZT by end bonding, instead of interface bonding. Large ME coefficients of 10.5 and 9.9 Vcm-1Oe-1 were obtained at the first planar acoustic and third bending resonance frequencies, which are larger than that of conventional layered TbFe2/PZT composites. The results show that the large ME coupling can be achieved without interface coupling.
description: 3 pages, 4 figures, 18 conferences
Brief Victori [de Staal]
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1602

description: von Jo[hann] Jac[obus vom] Staal
description: Brief Nr. 490, befindet sich auf der Rückseite von Nr. 489.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/August 2022 HAN-Katalogisierungsregeln iho/HBr
Brief [Guilelmo] Tryphæo
Creators: name: Staal, Hans Jakob von
Publisher: name: [s.n.]
Year: 1586

description: von [Hans Jakob vom Staal]
description: Brief Nr. 513.
description: Lateinisch
description: Verzeichnung=Description=Inventaire Dezember 2016/august 2022 HAN-Katalogisierungsregeln iho/HBr
Going beyond the Standard Model with noncommutative geometry
Creators: name: Broek, Thijs van den
name: van Suijlekom, Walter D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The derivation of the full Standard Model from noncommutative geometry has been a promising sign for possible applications of the latter in High Energy Physics. Many believe, however, that the Standard Model cannot be the final answer. We translate several demands whose origin lies in physics to the context of noncommutative geometry and use these to put constraints on the fermionic content of models. We show that the Standard Model only satisfies these demands provided it has a right-handed neutrino in each 'generation'. Furthermore, we show that the demands can be met upon extending the SM with a copy of the representation (1, 2, 1/2), but this has consequences for the number of particle generations. We finally prove that the Minimal Supersymmetric Standard Model is not among the models that satisfy our constraints, but we pose a solution that is a slight extension of the MSSM.
description: 19 pages, minor revisions
Comparison of Four fMRI Paradigms Probing Emotion Processing
Creators: name: Hartling, Corinna
name: Metz, Sophie
name: Pehrs, Corinna
name: Scheidegger, Milan
name: Gruzman, Rebecca
name: Keicher, Christian
name: Wunder, Andreas
name: Weigand, Anne
name: Grimm, Simone
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: amygdala
subject: anterior insula
subject: emotion processing
subject: fMRI paradigms
subject: pregenual ACC
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Previous fMRI research has applied a variety of tasks to examine brain activity underlying emotion processing. While task characteristics are known to have a substantial influence on the elicited activations, direct comparisons of tasks that could guide study planning are scarce. We aimed to provide a comparison of four common emotion processing tasks based on the same analysis pipeline to suggest tasks best suited for the study of certain target brain regions. We studied an n-back task using emotional words (EMOBACK) as well as passive viewing tasks of emotional faces (FACES) and emotional scenes (OASIS and IAPS). We compared the activation patterns elicited by these tasks in four regions of interest (the amygdala, anterior insula, dorsolateral prefrontal cortex (dlPFC) and pregenual anterior cingulate cortex (pgACC)) in three samples of healthy adults (N = 45). The EMOBACK task elicited activation in the right dlPFC and bilateral anterior insula and deactivation in the pgACC while the FACES task recruited the bilateral amygdala. The IAPS and OASIS tasks showed similar activation patterns recruiting the bilateral amygdala and anterior insula. We conclude that these tasks can be used to study different regions involved in emotion processing and that the information provided is valuable for future research and the development of fMRI biomarkers.
title: Bismuth in Dynamic Covalent Chemistry: Access to a Bowl-Type Macrocycle and a Barrel-Type Heptanuclear Complex Cation
Creators: name: Stoy, Andreas
name: Jürgensen, Malte
name: Millidoni, Christina
name: Berthold, Chantsalmaa
name: Ramler, Jacqueline
name: Martínez, Sebastián
name: Buchner, Magnus R.
name: Lichtenberg, Crispin
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Chemistry & allied sciences
Chemie

description: Dynamic covalent chemistry (DCvC) is a powerful and widely applied tool in modern synthetic chemistry, which is based on the reversible cleavage and formation of covalent bonds. One of the inherent strengths of this approach is the perspective to reversibly generate in an operationally simple approach novel structural motifs that are difficult or impossible to access with more traditional methods and require multiple bond cleaving and bond forming steps. To date, these fundamentally important synthetic and conceptual challenges in the context of DCvC have predominantly been tackled by exploiting compounds of lighter p-block elements, even though heavier p-block elements show low bond dissociation energies and appear to be ideally suited for this approach. Here we show that a dinuclear organometallic bismuth compound, containing BiMe2 groups that are connected by a thioxanthene linker, readily undergoes selective and reversible cleavage of its Bi C bonds upon exposure to external stimuli. The exploitation of DCvC in the field of organometallic heavy p-block chemistry grants access to unprecedented macrocyclic and barrel-type oligonuclear compounds.
Parameterised model checking of probabilistic multi-agent systems
Creators: name: Pirovano, Edoardo
Publisher: name: Imperial College London
Year: 2021

description: Swarm robotics has been put forward as a method of addressing a number of scenarios where scalability and robustness are desired. In order to deploy robotic swarms in safety-critical situations, it is necessary to verify their behaviour. Model checking gives a possible approach to do this; however, with traditional model checking techniques only systems of a finite size can be considered. This presents an issue for swarm systems, where the number of participants in the system is not known at design-time and may be arbitrarily large. To overcome this, parameterised model checking (PMC) techniques have been developed which enable the verification of systems where the number of participants is not known until run-time. However, protocols followed by robotic swarms are often stochastic in nature, and this cannot be modelled with current PMC techniques. This is the gap that this thesis aims to overcome. In particular, two parameterised semantics for reasoning about multi-agent systems are extended to incorporate probabilities. One of these semantics is synchronous, whilst the other is interleaved. Abstract models which overapproximate the systems being considered are constructed using counter abstraction techniques. These abstract models are used to develop parameterised verification procedures for a number of specification logics on both bounded and unbounded traces. The decision procedures presented are shown to be sound, and in some cases also complete. Further, the techniques are extended to allow modelling of situations where agents may exhibit faulty behaviour, as well as scenarios where the strategic capabilities of the participants needs to be verified. The procedures are all implemented in a novel verification toolkit called PSV (Probabilistic Swarm Verifier), built on top of the probabilistic model checker PRISM. This toolkit is used to verify three case studies from both swarm robotics and other application domains.