cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Equivariant semidefinite lifts and sum-of-squares hierarchies
Creators: name: Fawzi, Hamza
name: Saunderson, James
name: Parrilo, Pablo A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A central question in optimization is to maximize (or minimize) a linear function over a given polytope P. To solve such a problem in practice one needs a concise description of the polytope P. In this paper we are interested in representations of P using the positive semidefinite cone: a positive semidefinite lift (psd lift) of a polytope P is a representation of P as the projection of an affine slice of the positive semidefinite cone $\mathbf{S}^d_+$. Such a representation allows linear optimization problems over P to be written as semidefinite programs of size d. Such representations can be beneficial in practice when d is much smaller than the number of facets of the polytope P. In this paper we are concerned with so-called equivariant psd lifts (also known as symmetric psd lifts) which respect the symmetries of the polytope P. We present a representation-theoretic framework to study equivariant psd lifts of a certain class of symmetric polytopes known as orbitopes. Our main result is a structure theorem where we show that any equivariant psd lift of size d of an orbitope is of sum-of-squares type where the functions in the sum-of-squares decomposition come from an invariant subspace of dimension smaller than d^3. We use this framework to study two well-known families of polytopes, namely the parity polytope and the cut polytope, and we prove exponential lower bounds for equivariant psd lifts of these polytopes.
description: v2: 30 pages, Minor changes in presentation; v3: 29 pages, New structure theorem for general orbitopes + changes in presentation
Phase-resolved imaging of edge-mode spin waves using scanning transmission x-ray microscopy
Creators: name: Cheng, Cheng
name: Bailey, William E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have imaged the excitation of small-amplitude spin-wave eigenmodes, localized within $\sim$ 100 nm of the vertices of nanoscale Ni$_{81}$Fe$_{19}$ ellipses, using time-resolved scanning transmission x-ray microscopy (STXM) at 2 GHz and resolution of 70 nm. Taking advantage of the buried-layer sensitivity of STXM, we find that the magnetization precession at the two vertices changes from predominantly in-phase to out-of-phase in samples with and without a conductive layer deposited over the ellipses. As a plausible interpretation for the reversal in phase, we propose that unexpectedly strong Oersted fields are generated in the discontinuous overlayer, although effects of edge roughness cannot be fully excluded. The results demonstrate the capabilities of STXM to image small-amplitude, GHz magnetization dynamics with the potential to map rf magnetic fields on the nanoscale.
Implementation of a ship management company's quality control through KPIs
Creators: name: Bachti, Nikoleta-Aliki
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: KPI
subject: PI
subject: BINCO
subject: Quality control
subject: Analysis
subject: Case study

description: Όπως κάθε επιχείρηση, έτσι και οι ναυτιλιακές εταιρίες βασίζουν την επιβίωσή τους κατά κύριο λόγο στον ποιοτικό έλεγχο. Μέσω του ποιοτικού ελέγχου οι εταιρίες έχουν την ικανότητα να ελέγχουν, να αξιολογούν καθώς και να προλαμβάνουν τη σωστή λειτουργία και την εδραίωση των προιόντων και των υπηρεσίες που παράγουν. Στη μελέτη που ακολουθεί, αναλύεται ο τρόπος κατά τον οποίο οι ναυτιλιακές εταιρείες μπορούν να αξιοποιήσουν σωστά τις υπηρεσίες που παρέχουν μέσω των πλοίων που έχουν στη διάθεσή τους, με σεβασμό στους ανταγωνιστές και το περιβάλλον, ακολουθούν διαδικασίες και μελέτες βασισμένες σε δεδομένα που αφορούν όλα τα τμήματα της εταιρείας και βασίζονται τόσο σε θεωρητικό όσο και σε πρακτικό επίπεδο. Μέσω της ανάλυσης αυτής, οι εταιρία καταλήγει σε συγκεκριμένα συμπεράσματα για την αποδοτικότητα των τακτικών που χρησιμοποιεί. Στη συνέχεια, λαμβάνοντας υπόψη όλες τις απαραίτηετες παραμέτρους, προχωρά στη δημιουργία νέου προσαρμοσμένου πλάνου και κανονισμών ώστε να επιτύχει το μέγιστο δυνατό αποτέλεσμα.
Staf Hellemans, Das Zeitalter der Weltreligionen
Creators: name: Forst, Johannes
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Porcine cytomegalovirus/porcine roseolovirus (PCMV/PRV): A threat for xenotransplantation?
Creators: name: Mueller, Nicolas J.
name: Denner, Joachim
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: herpes viruses
subject: PCR methods
subject: porcine cytomegalovirus
subject: porcine roseolovirus
subject: Western blot analysis
subject: xenotransplantation
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: The potential for a donor-derived transmission of porcine cytomegalovirus/porcine roseolovirus (PCMV/PRV) to the recipient has been recognized since pigs were considered candidate donors for xenotransplantation. This review gives a short description of the viral properties and summarizes the current evidence of the effects of PCMV/PRV transmission in preclinical xenotransplantation. Despite evidence that PCMV/PRV does not infect human and non-human primate cells, activation in the transplanted organ and detrimental systemic complications have been described. As PCMV/PRV is a herpesvirus able to establish latency, the importance of adequate screening of donor pigs is emphasized, as no efficient treatment is available. Furthermore, easy and successful ways of elimination of PCMV/PRV from pig herds are indicated.
Characterizations of sets of finite perimeter using heat kernels in metric spaces
Creators: name: Marola, Niko
name: Miranda, Michele
name: Shanmugalingam, Nageswari
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The overarching goal of this paper is to link the notion of sets of finite perimeter (a concept associated with $N^{1,1}$-spaces) and the theory of heat semigroups (a concept related to $N^{1,2}$-spaces) in the setting of metric measure spaces whose measure is doubling and supports a $1$-Poincaré inequality. We prove a characterization of sets of finite perimeter in terms of a short time behavior of the heat semigroup in such metric spaces. We also give a new characterization of ${\rm BV}$ functions in terms of a near-diagonal energy in this general setting.
description: To appear in Potential Analysis
Integrating restorative and reparative planning concepts into highway revisioning projects : reimagining I-35 in Austin, Texas
Creators: name: Hinderaker, Mollie
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Restorative planning
Reparative planning
Interregional highway
Highway revisioning
Austin, Texas
Interstate-35
Urban renewal

description: Over half a century ago the US interregional highway system was built in a way that adversely impacted urban communities, specifically communities of color. Cities across the country are grappling with how to address this history while updating aging transportation infrastructure. Two theories in planning have emerged to address these complex issues, restorative and reparative planning. This Professional Report explores these theories in the context of revisioning I-35 in Austin. It develops a literature review, project profiles, historic archival research, and a content analysis on qualitative accounts from stakeholders involved in I-35 revisioning efforts. The report concludes with an assessment and reflection on the feasibility, opportunities, and barriers for implementing a restorative and/or reparative vision for I-35 in Austin.
ХАРАКТЕРИСТИКА ДИЗЕНТЕРИИ У ДЕТЕЙ.
Creators: name: Юлдашева, Зиедахон
Publisher: name: Zenodo
Year: 2023

description: Причина возникновения данного заболевания — шигеллы, которые проникают в желудочно-кишечный тракт, и там выделяют токсины, негативно влияющие на пищеварение и функцию внутренних органов. Дизентерия считается одной из самых распространенных форм острых кишечных инфекций.
Aufgeklärtes Christentum, hg. v. Albrecht Beutel, Volker Leppin, Udo Sträter und Markus Wriedt
Creators: name: Weiß, Alfred Stefan
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Ruth von Bernuth, Wunder, Spott und Prophétie. Natürliche Narrheiten in den >Historien von Claus Narren
Creators: name: Slenczka, Ruth
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Heinz Duchhardt, Frieden im Europa der Vormoderne
Creators: name: Langewiesche, Dieter
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Altered states phenomena induced by visual flicker light stimulation
Creators: name: Bartossek, Marie Therese
name: Kemmerer, Johanna
name: Schmidt, Timo Torsten
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Altered states of consciousness
subject: Eyes
subject: Hallucinations
subject: Consciousness
subject: Vision
subject: Sensory perception
subject: Personality traits
subject: Light
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Flicker light stimulation can induce short-term alterations in consciousness including hallucinatory color perception and geometric patterns. In the study at hand, the subjective experiences during 3 Hz and 10 Hz stroboscopic light stimulation of the closed eyes were assessed. In a within-subjects design (N = 24), we applied the Positive and Negative Affect Schedule (mood state), time perception ratings, the Altered State of Consciousness Rating Scale, and the Phenomenology of Consciousness Inventory. Furthermore, we tested for effects of personality traits (NEO Five-Factor Inventory-2 and Tellegen Absorption Scale) on subjective experiences. Such systematic quantification improves replicability, facilitates comparisons between pharmacological and non-pharmacological techniques to induce altered states of consciousness, and is the prerequisite to study their underlying neuronal mechanisms. The resulting data showed that flicker light stimulation-induced states were characterized by vivid visual hallucinations of simple types, with effects strongest in the 10 Hz condition. Additionally, participants’ personality trait of Absorption scores highly correlated with the experienced alterations in consciousness. Our data demonstrate that flicker light stimulation is capable of inducing visual effects with an intensity rated to be similar in strength to effects induced by psychedelic substances and thereby support the investigation of potentially shared underlying neuronal mechanisms.
Andreas Neubörger, Konfessionskonflikt und Kriegsbeendigung im Schwäbischen Reichskreis
Creators: name: Brüser, Joachim
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Die Außenbeziehungen der römischen Kurie unter Paul V. Borghese, hg. v. Alexander Koller
Creators: name: Unterburger, Klaus
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
CREATING ONLINE COURSES IN DISTANCE EDUCATION ON THE EXAMPLE OF "ALGORITHMIC LANGUAGES AND PROGRAMMING".
Creators: name: Vaxidov, Inomjon
name: Yusupov, Yusufbay
Publisher: name: Zenodo
Year: 2023

description: This article explores the process of creating online courses in distance education using the example of "Algorithmic Languages and Programming." It discusses key considerations, strategies, and outcomes associated with developing and implementing these courses. The article highlights the importance of flexibility, engagement, practical application, continuous improvement, and support in designing effective online courses. It also emphasizes the role of career guidance and networking opportunities in enhancing learners' professional development. The results demonstrate increased learner engagement, improved knowledge acquisition, and enhanced accessibility. The conclusion emphasizes the importance of online courses in equipping learners with the necessary skills for success in the field of algorithmic languages and programming.
Invariants and Infinitesimal Transformations for Contact Sub-Lorentzian Structures on 3-Dimensional Manifolds
Creators: name: Grochowski, Marek
name: Warhurst, Ben
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B30, 53C30

description: In this article we develop some elementary aspects of a theory of symmetry in sub-Lorentzian geometry. First of all we construct invariants characterizing isometric classes of sub-Lorentzian contact 3 manifolds. Next we characterize vector fields which generate isometric and conformal symmetries in general sub-Lorentzian manifolds. We then focus attention back to the case where the underlying manifold is a contact 3 manifold and more specifically when the manifold is also a Lie group and the structure is left-invariant.
Morphology and environment of galaxies with disc breaks in the S4G and NIRS0S
Creators: name: Laine, J.
name: Laurikainen, E.
name: Salo, H.
name: Comerón, S.
name: Buta, R. J.
name: Zaritsky, D.
name: Athanassoula, E.
name: Bosma, A.
name: Muñoz-Mateos, J. C.
name: Gadotti, D. A.
name: Hinz, J. L.
name: Erroz-Ferrer, S.
name: de Paz, A. Gil
name: Kim, T.
name: Menéndez-Delmestre, K.
name: Mizusawa, T.
name: Regan, M. W.
name: Seibert, M.
name: Sheth, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the surface brightness profiles of disc galaxies in the 3.6 micron images from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and K_s-band images from the Near Infrared S0-Sa galaxy Survey (NIRS0S). We particularly connect properties of single exponential (type I), downbending double exponential (type II), and upbending double exponential (type III) disc profile types, to structural components of galaxies by using detailed morphological classifications, and size measurements of rings and lenses. We also study how the local environment of the galaxies affects the profile types by calculating parameters describing the environmental density and the tidal interaction strength. We find that in majority of type II profiles the break radius is connected with structural components such as rings, lenses, and spirals. The exponential disc sections of all three profile types, when considered separately, follow the disc scaling relations. However, the outer discs of type II, and the inner discs of type III, are similar in scalelength to the single exponential discs. Although the different profile types have similar mean environmental parameters, the scalelengths of the type III profiles show a positive correlation with the tidal interaction strength.
description: Published in MNRAS, 25 pages, 16 figures, 4 tables. The complete tables A1 and A2 can be found at http://cc.oulu.fi/~laineja/laine_etal_2014_tables.pdf V2: Corrected surface brightness zeropoint value in Eq. 1. to reflect erratum. Error was purely clerical, and does not affect the presented results or numerical values. V3: corrected typo in Fig. 11 caption
Phase transition grade and microstructure of AdS black holes in massive gravity
Creators: name: Li, Guan-Ru
name: Li, Guo-Ping
name: Guo, Sen
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Considering that under the framework of the massive gravity theory, the interaction between the mass gravitons and Schwarzschild black hole (BH) could make it carry a scalar charge, the phase transition process caused by this scalar charge is investigated in this analysis. The phase transition grade and microstructure of those BHs are investigated from both macroscopic and microscopic points of view. From the macroscopic point of view, it is found that Ehrenfest equations are satisfied at the phase transition critical point, which implies that the phase transition grade of those BHs is second-order. Based on the BH molecules model and Landau continuous phase transition theory, the phase transition of those BHs from the microcosmic point of view is analyzed. The critical exponents obtained from the two perspectives are consistent. By investigating the Ruppeiner geometry, the microstructure feature of those BHs is revealed. These results suggest that the phase transition of BH in massive gravity is a standard second-order phase transition at the critical point, and the microscopic details of those BHs are different from the RN-AdS BH in standard Einstein gravity.
description: 17 pages, 3 figures
Spectroscopic study of the magnetic ground state of Nb$_{1-y}$Fe$_{2+y}$
Creators: name: Rauch, Daniela
name: Kraken, Mathias
name: Litterst, F. Jochen
name: Süllow, Stefan
name: Luetkens, Hubertus
name: Brando, Manuel
name: Förster, Tobias
name: Sichelschmidt, Jörg
name: Neubauer, Andreas
name: Pfleiderer, Christian
name: Duncan, William J.
name: Grosche, F. Malte
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated single crystals and polycrystals from the series Nb$_{1-y}$Fe$_{2+y}$, $-0.004 \leq y \leq 0.018$ by electron spin resonance, muon spin relaxation and Mössbauer spectroscopy. Our data establish that at lowest temperatures all samples exhibit bulk magnetic order. Slight Fe-excess induces low-moment ferromagnetism, consistent with bulk magnetometry ($\simeq 0.06 ~μ_B/{\rm Fe}$), Nb--rich and stoichiometric NbFe$_2$ display spin density wave order with small magnetic moment amplitudes of the order $\sim 0.001 - 0.01 ~μ_B/{\rm Fe}$. This provides microscopic evidence for a modulated magnetic state on the border of ferromagnetism in NbFe$_2$.
description: 7 pages, 9 figures
Atheroprone fluid shear stress-regulated ALK1-Endoglin-SMAD signaling originates from early endosomes
Creators: name: Mendez, Paul-Lennard
name: Obendorf, Leon
name: Jatzlau, Jerome
name: Burdzinski, Wiktor
name: Reichenbach, Maria
name: Nageswaran, Vanasa
name: Haghikia, Arash
name: Stangl, Verena
name: Hiepen, Christian
name: Knaus, Petra
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Fluid shear stress
subject: Endothelial cell
subject: EndoMT
subject: BMP
subject: Endoglin
subject: Caveolin
subject: Endosome
subject: Endocytosis
subject: Atherosclerosis
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Background Fluid shear stress enhances endothelial SMAD1/5 signaling via the BMP9-bound ALK1 receptor complex supported by the co-receptor Endoglin. While moderate SMAD1/5 activation is required to maintain endothelial quiescence, excessive SMAD1/5 signaling promotes endothelial dysfunction. Increased BMP signaling participates in endothelial-to-mesenchymal transition and inflammation culminating in vascular diseases such as atherosclerosis. While the function of Endoglin has so far been described under picomolar concentrations of BMP9 and short-term shear application, we investigated Endoglin under physiological BMP9 and long-term pathophysiological shear conditions. Results We report here that knock-down of Endoglin leads to exacerbated SMAD1/5 phosphorylation and atheroprone gene expression profile in HUVECs sheared for 24 h. Making use of the ligand-trap ALK1-Fc, we furthermore show that this increase is dependent on BMP9/10. Mechanistically, we reveal that long-term exposure of ECs to low laminar shear stress leads to enhanced Endoglin expression and endocytosis of Endoglin in Caveolin-1-positive early endosomes. In these endosomes, we could localize the ALK1-Endoglin complex, labeled BMP9 as well as SMAD1, highlighting Caveolin-1 vesicles as a SMAD signaling compartment in cells exposed to low atheroprone laminar shear stress. Conclusions We identified Endoglin to be essential in preventing excessive activation of SMAD1/5 under physiological flow conditions and Caveolin-1-positive early endosomes as a new flow-regulated signaling compartment for BMP9-ALK1-Endoglin signaling axis in atheroprone flow conditions.
Reformation und Bauernkrieg, hg. v. Jan Schneunemann
Creators: name: Sarx, Tobias
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Thomas Kaufmann, Luthers »Judenschriften«
Creators: name: Rauschenbach, Sina
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Inter- and intra-tree variability of carbon and oxygen stable isotope ratios of modern pollen from nine European tree species
Creators: name: Müller, Carolina
name: Hethke, Manja
name: Riedel, Frank
name: Helle, Gerhard
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: carbon stable
subject: oxygen stable
subject: isotope ratios
subject: modern pollen
subject: European tree species
subject: 500 Naturwissenschaften und Mathematik::560 Fossilien, Paläontologie::560 Paläontologie, Paläozoologie

description: Stable carbon and oxygen isotope ratios of raw pollen sampled from nine abundant tree species growing in natural habitats of central and northern Europe were investigated to understand the intra- and inter-specific variability of pollen-isotope values. All species yielded specific δ13Cpollen and δ18Opollen values and patterns, which can be ascribed to their physiology and habitat preferences. Broad-leaved trees flowering early in the year before leaf proliferation (Alnus glutinosa and Corylus avellana) exhibited on average 2.6‰ lower δ13Cpollen and 3.1‰ lower δ18Opollen values than broad-leaved and coniferous trees flowering during mid and late spring (Acer pseudoplatanus, Betula pendula, Carpinus betulus, Fagus sylvatica, Picea abies, Pinus sylvestris and Quercus robur). Mean species-specific δ13Cpollen values did not change markedly over time, whereas δ18Opollen values of two consecutive years were often statistically distinct. An intra-annual analysis of B. pendula and P. sylvestris pollen revealed increasing δ18Opollen values during the final weeks of pollen development. However, the δ13Cpollen values remained consistent throughout the pollen-maturation process. Detailed intra-individual analysis yielded circumferential and height-dependent variations within carbon and oxygen pollen-isotopes and the sampling position on a tree accounted for differences of up to 3.5‰ for δ13Cpollen and 2.1‰ for δ18Opollen. A comparison of isotope ranges from different geographic settings revealed gradients between maritime and continental as well as between high and low altitudinal study sites. The results of stepwise regression analysis demonstrated, that carbon and oxygen pollen-isotopes also reflect local non-climate environmental conditions. A detailed understanding of isotope patterns and ranges in modern pollen is necessary to enhance the accuracy of palaeoclimate investigations on δ13C and δ18O of fossil pollen. Furthermore, pollen-isotope values are species-specific and the analysis of species growing during different phenophases may be valuable for palaeoweather reconstructions of different seasons.
QISHLOQ XO'JALIK EKINLARI SELEKSIYASIDA CHATISHTIRISH USLUBLARINI QO'LLASHNING AXAMIYATI
Creators: name: Yakubjonova, N.A.
name: Ne'matillayev, Bekmirza
Publisher: name: Zenodo
Year: 2023

description: Ma'lumki, o'simliklar seleksiyasida samarali natijalarga erishishda belgilarning genetik o'zgaruvchanliklarini hisobga olgan holda chatishtirishlar uslubini to'g'ri tanlash muhim ahamiyat kasb etadi. Seleksionerlarga chatishtirishlar uslubini to'g'ri tanlash boshlang'ich ota-onalik shakllarining ijobiy belgilarini o'zida mujassam etgan kombinatsiyalarni ola bilishga imkoniyat yaratadi.
The matching polytope does not admit fully-polynomial size relaxation schemes
Creators: name: Braun, Gábor
name: Pokutta, Sebastian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Complexity (cs.CC)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 52B12, 68Q17, 05C70, 94A17

description: The groundbreaking work of Rothvoß [arxiv:1311.2369] established that every linear program expressing the matching polytope has an exponential number of inequalities (formally, the matching polytope has exponential extension complexity). We generalize this result by deriving strong bounds on the polyhedral inapproximability of the matching polytope: for fixed $0 < \varepsilon < 1$, every polyhedral $(1 + \varepsilon / n)$-approximation requires an exponential number of inequalities, where $n$ is the number of vertices. This is sharp given the well-known $ρ$-approximation of size $O(\binom{n}{ρ/(ρ-1)})$ provided by the odd-sets of size up to $ρ/(ρ-1)$. Thus matching is the first problem in $P$, whose natural linear encoding does not admit a fully polynomial-size relaxation scheme (the polyhedral equivalent of an FPTAS), which provides a sharp separation from the polynomial-size relaxation scheme obtained e.g., via constant-sized odd-sets mentioned above. Our approach reuses ideas from Rothvoß [arxiv:1311.2369], however the main lower bounding technique is different. While the original proof is based on the hyperplane separation bound (also called the rectangle corruption bound), we employ the information-theoretic notion of common information as introduced in Braun and Pokutta [http://eccc.hpi-web.de/report/2013/056/], which allows to analyze perturbations of slack matrices. It turns out that the high extension complexity for the matching polytope stem from the same source of hardness as for the correlation polytope: a direct sum structure.
description: 21 pages, 3 figures
title: Likes and impulsivity
title: Investigating the relationship between actual smartphone use and delay discounting
titleType: Subtitle
Creators: name: Endert, Tim Schulz Van
name: Mohr, Peter N. C.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: relationship
subject: smartphone use
subject: omnipresence of smartphones
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: The omnipresence of smartphones among adolescents and adults gives rise to the questions about excessive use and personality factors which are associated with heavier engagement with these devices. Previous studies have found behavioral similarities between smartphone use and maladaptive behaviors (e.g. drinking, gambling, drug abuse) in the context of intertemporal choice but mostly relied on participants’ self-reports regarding engagement with their phone. In this study, we collected actual usage data by smartphone application from 101 participants and assessed their tendency to discount future rewards, their reward responsiveness, self-control and consideration of future consequences. We found that smartphone screen time was correlated with choosing smaller immediate over larger delayed rewards and that usage of social media and gaming apps predicted delay discounting. Additionally, smartphone use was negatively correlated with self-control but not correlated with consideration of future consequences. Neither psychological variable could mediate the relationship between smartphone usage and delay discounting. Our findings provide further evidence that smartphone use and impulsive decision-making go hand in hand and that engagement with these devices needs to be critically examined by researchers to guide prudent behavior.
Martin Luther - Biographie und Theologie, hg. v. Dieter Korsch und Volker Leppin
Creators: name: Spehr, Christopher
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Sebastian Brant und die Kommunikationskultur um 1500, hg. v. Klaus Bergdolt, Joachim Knape, Anton Schindling und Gerrit Walther
Creators: name: Rupp, Michael
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Water's worth. Urban society and subsidiarity in seventeenth-century Holland
Creators: name: Foncke, Marianne E.
Publisher: name: Zenodo
Year: 2020
Subjects: water
subsidiarity
infrastructure
conflict managment
negotiation
urban life
early modern history

description: For this PhD thesis, the reports of human encounters with water were used to evaluate the allocation of duties and responsibilities within Holland’s urban communities between 1600 and 1660. This was done by systematically examining the reports of water-related issues in (a) notarial records and (b) petitions to the urban magistrates, originating from the cities of Alkmaar, Haarlem, The Hague and Rotterdam. Additional archival sources, such as patent applications, tendering documents, and legal records helped to put the findings from the notarial records and petitions into perspective. The overall conclusion of the thesis is that taking water as a viewpoint reveals that the urban communities of Holland were highly subsidiary in nature. Individual townspeople, men and women alike, knew how to fend for themselves, incidentally having recourse to other inhabitants, businessmen, corporations or magistrates. Together, they constituted a tiered society, wherein nearly each entity bore the responsibilities that fitted its capacities.
Media Salutis, hg. v. Berndt Hamm, Volker Leppin und Gury Schneider- Ludorff
Creators: name: Neidiger, Bernhard
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
String geometry vs. spin geometry on loop spaces
Creators: name: Waldorf, Konrad
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 53C27, Secondary 81T30, 58B05

description: We introduce various versions of spin structures on free loop spaces of smooth manifolds, based on a classical notion due to Killingback, and additionally coupled to two relations between loops: thin homotopies and loop fusion. The central result of this article is an equivalence between these enhanced versions of spin structures on the loop space and string structures on the manifold itself. The equivalence exists in two settings: in a purely topological one and a in geometrical one that includes spin connections and string connections. Our results provide a consistent, functorial, one-to-one dictionary between string geometry and spin geometry on loop spaces.
description: 54 pages. In v2 two errorneous lemmata (2.3.3 and 3.1.3) have been removed, with corresponding changes in Prop. 2.3.4 and Def. 3.1.4 (now Prop. 2.3.3 and Def. 3.1.3, respectively); otherwise minor changes. v3 comes with few minor changes and is the published version
Ulrike Treusch, Bernhard von Waging (1472), ein Theologe der Melker Reformbewegung
Creators: name: Arend, Sabine
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
openEO D07: Proof of Concept (Python)
Creators: name: Dries, Jeroen
name: Gößwein, Bernhard
name: Wagner, Wolfgang
name: Schramm, Matthias
name: Pebesma, Edzer
name: Masiliunas, Dainius
name: Verbesselt, Jan
Publisher: name: Zenodo
Year: 2018

description: This deliverable of the openEO project demonstrates a user interaction with back-ends, using a Jupyter notebook.
description: {"references": ["Dries, Jeroen (2018). Openeo proof of concept notebook. [Online]. Available: https://github.com/Open-EO/openeo-python-client/blob/ 3d00f56f4365fa732bc6bbe8c8a877a4e412cddd/examples/notebooks/Compositing.ipynb"]}
Black Newark v.1 no.3
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1968

description: This issue of Black Newark volume 1, number 3, has a publication date of November 1968. Contributions of news articles, essays, illustrations, photographs, or advertisements are attributed to Jomo, Max Stanford, Your Brother, Rob, Roz M'Fal-Fal, Ameer Baraka, Max Stanford, Reed, Queen Esther, and Yillie Bey.
Density of space-time distribution of Brownian first hitting of a disc and a ball
Creators: name: Uchiyama, Kohei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We compute the joint distribution of the site and the time at which a $d$-dimensional standard Brownian motion $B_t$ hits the surface of the ball $ U(a) =\{|{\bf x}|
description: 48 pages, 2 figures
Experimental demonstration of Gaussian protocols for one-sided device-independent quantum key distribution
Creators: name: Walk, Nathan
name: Hosseni, Sara
name: Geng, Jiao
name: Thearle, Oliver
name: Haw, Jing Yan
name: Armstrong, Seiji
name: Assad, Syed M
name: Janousek, Jiri
name: Ralph, Timothy C
name: Symul, Thomas
name: Wiseman, Howard M
name: Lam, Ping Koy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nonlocal correlations, a longstanding foundational topic in quantum information, have recently found application as a resource for cryptographic tasks where not all devices are trusted, for example in settings with a highly secure central hub, such as a bank or government department, and less secure satellite stations which are inherently more vulnerable to hardware "hacking" attacks. The asymmetric phenomena of Einstein-Podolsky-Rosen steering plays a key role in one-sided device-independent quantum key distribution (1sDI-QKD) protocols. In the context of continuous-variable (CV) QKD schemes utilizing Gaussian states and measurements, we identify all protocols that can be 1sDI and their maximum loss tolerance. Surprisingly, this includes a protocol that uses only coherent states. We also establish a direct link between the relevant EPR steering inequality and the secret key rate, further strengthening the relationship between these asymmetric notions of nonlocality and device independence. We experimentally implement both entanglement-based and coherent-state protocols, and measure the correlations necessary for 1sDI key distribution up to an applied loss equivalent to 7.5 km and 3.5 km of optical fiber transmission respectively. We also engage in detailed modelling to understand the limits of our current experiment and the potential for further improvements. The new protocols we uncover apply the cheap and efficient hardware of CVQKD systems in a significantly more secure setting.
description: Addition of experimental results and (several) new authors
Irreducible decomposition for local representations of quantum Teichmüller space
Creators: name: Jérémy, Toulisse
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20G42, 57R56, 57M50

description: We give an irreducible decomposition of the so-called local representations (see arXiv:0707.2151) of the quantum Teichmüller space $\mathcal{T}_q(Σ)$ where $Σ$ is a punctured surface of genus $g>0$ and $q$ is a primitive $N$-th root of unity with $N$ odd. As an application, we construct a family of representations of the Kauffman bracket skein algebra of the closed surface $\overlineΣ$.
description: Now ready for publication
Sylvie Tritz, »... uns Schätze im Himmel zu sammeln.«
Creators: name: Woelki, Thomas
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Random weighted Sobolev inequalities and application to quantum ergodicity
Creators: name: Robert, Didier
name: Thomann, Laurent
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This paper is a continuation of Poiret-Robert-Thomann (2013) where we studied a randomisation method based on the Laplacian with harmonic potential. Here we extend our previous results to the case of any polynomial and confining potential $V$ on $\mathbb{R}^d$. We construct measures, under concentration type assumptions, on the support of which we prove optimal weighted Sobolev estimates on $\mathbb{R}^d$. This construction relies on accurate estimates on the spectral function in a non-compact configuration space. Then we prove random quantum ergodicity results without specific assumption on the classical dynamics. Finally, we prove that almost all basis of Hermite functions is quantum uniquely ergodic.
description: Clarifications added in the part concerning QUE
Jessika Nowak, Ein Kardinal im Zeitalter der Renaissance
Creators: name: Meyer, Andreas
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
The development and production of turbojet aero-engines in Britain, Germany and the United States, 1936-1945
Creators: name: Giffard, Hermione S.
Publisher: name: Imperial College London
Year: 2022

description: The history of the jet engine in Britain, Germany and the United States between 1936 and 1945 has long been recognised by historians as a rich subject for investigating the nature of technological change in comparative perspective. Outside academia, it has captured the public imagination as a story of heroic invention. Both kinds of account have much in common, including a focus on the same successful engines and inventors. This thesis will change both types of accounts by taking a comprehensive and critical approach to reinterpret and broaden the existing history of tire jet engine. This new story of the turbojet is centred on production and on industry, rather than on the work of individual inventors. It brings attention to the extent and significance of jet engine production during the Second World War, and illustrates that production, development and invention - activities often treated as separate - are fundamentally linked. Here, the jet engine is understood as emerging from the existing aero-engine industry rather than as arising outside it. I thus give new accounts of famous institutions outside of the aeroengine industry that made crucial contributions. Through a detailed study of the work of the main companies and institutions that worked on jet engines during the war, which draws on sources ranging from popular accounts to archival research, this thesis recalibrates our understanding of the importance of different actors in the history of the jet engine, which has been distorted by the greater visibility of particular groups. The necessity of such a re-evaluation is made clear through a historical exploration of how the popular story of the jet engine emerged. In bringing attention to the variety of sources of technical change, this thesis suggests the outlines of a new account of the sources of technical novelty in the twentieth-century.
Gerhard Fouquet, Gabriel Zeilinger, Katastrophen im Spätmittelalter
Creators: name: Schmidt, Jürgen M.
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
A Dai-Yuan-type Riemannian conjugate gradient method with the weak Wolfe conditions
Creators: name: Sato, Hiroyuki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 65K05, 49M37, 90C30

description: This article describes a new Riemannian conjugate gradient method and presents a global convergence analysis. The existing Fletcher-Reeves-type Riemannian conjugate gradient method is guaranteed to be globally convergent if it is implemented with the strong Wolfe conditions. On the other hand, the Dai-Yuan-type Euclidean conjugate gradient method generates globally convergent sequences under the weak Wolfe conditions. This article deals with a generalization of Dai-Yuan's Euclidean algorithm to a Riemannian algorithm that requires only the weak Wolfe conditions. The global convergence property of the proposed method is proved by means of the scaled vector transport associated with the differentiated retraction. The results of numerical experiments demonstrate the effectiveness of the proposed algorithm.
description: 16 pages
Christina Lutter, Zwischen Hof und Kloster
Creators: name: Holzwart-Schäfer, Iris
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Vector-valued Hilbert transforms along curves
Creators: name: Hong, Guixiang
name: Liu, Honghai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B20

description: In this paper, we show that Hilbert transforms along some curves are bounded on $L^p({\mathbb R}^n;X)$ for some $1
description: 20pages
Scott B. Montgomery, St. Ursula and the Eleven Thousand Virgins of Cologne
Creators: name: Eberl, Immo
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Jens Schneider, Auf der Suche nach dem verlorenen Reich
Creators: name: Waßenhoven, Dominik
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Unity and struggle v.4 no.13
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1975

description: This issue of Unity and Struggle volume 4, number 13, has a publication date of October 1975 and is the first part of a two-part edition. Contributions of news articles, essays, illustrations, photographs, or advertisements are attributed to Bod Yeggero, Cinque Ruchell Magee, Mwana wa Lumumba, Jawanza Kunjufu and Haki R. Madhubuti.
Heike Johanna Mierau, Kaiser und Papst im Mittelalter
Creators: name: Johrendt, Jochen
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Emergent universe scenario and the low CMB multipoles
Creators: name: Labrana, Pedro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we study superinflation in the context of the emergent universe (EU) scenario. The existence of a superinflating phase before the onset of slow-roll inflation arises in any emergent universe model. We found that the superinflationary period in the EU scenario produces a suppression of the CMB anisotropies at large scale which could be responsible for the observed lack of power at large angular scales of the CMB.
description: 20 pages, 4 figures, typos corrected, some improvements in sections III and V, and comments added in conclusions. New appendix, references added. Accepted for publication in Phys.Rev.D
Klaus Herbers, Geschichte des Papsttums im Mittelalter
Creators: name: Schmidt, Bernward
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Jochen Martin, Der Weg zur Ewigkeit führt über Rom
Creators: name: Herbers, Klaus
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Altertum und Frühmittelalter, hg. v. Peter Dinzelbacher
Creators: name: Spickermann, Wolfgang
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 30 (2011): Rottenburger Jahrbuch für Kirchengeschichte, Band 30
Vision in Bloom
Creators: name: Lucas, Jasmine Ashley
Publisher: name: Galter Health Science Library & Learning Center
Year: 2016

description: Honorable Mention
description: This image shows a mouse retina. A retina contains millions of neurons which detect light and transmit signals to our brain. The small white dots shown here are one type of neuron which receive light information from the outside world.The lines heading toward the center are called axons. Axons act like telephone wires, sending light information from these neurons out of the eye, along the optic nerve, and on to the brain. This process of transmitting information from the sensitive neurons in our eyes to our brain is the basis of how we see.Researcher Jasmine Lucas and other scientists study neurons in the retina to understand how different cells within the eye develop and mature.Department of NeurobiologyTools & Techniques: Epifluorescent Microscope
Path integral Monte Carlo simulation of global and local superfluidity in liquid $^{4}$He reservoirs separated by nanoscale apertures
Creators: name: Volkoff, Tyler
name: Kwon, Yongkyung
name: Whaley, K. Birgitta
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a path integral Monte Carlo study of the global superfluid fraction and local superfluid density in cylindrically-symmetric reservoirs of liquid $^{4}$He separated by nanoaperture arrays. The superfluid response to both translations along the axis of symmetry (longitudinal response) and rotations about the cylinder axis (transverse response) are computed, together with radial and axial density distributions that reveal the microscopic inhomogeneity arising from the combined effects of the confining external potential and the $^4$He-$^4$He interatomic potentials. We make a microscopic determination of the length-scale of decay of superfluidity at the radial boundaries of the system by analyzing the local superfluid density distribution to extract a displacement length that quantifies the superfluid mass displacement away from the boundary. We find that the longitudinal superfluid response is reduced in reservoirs separated by a septum containing sufficiently small apertures compared to a cylinder with no intervening aperture array, for all temperatures below $T_λ$. For a single aperture in the septum, a significant drop in the longitudinal superfluid response is seen when the aperture diameter is made smaller than twice the empirical temperature-dependent $^4$He healing length, consistent with the formation of a weak link between the reservoirs. Increasing the diameter of a single aperture or the number of apertures in the array results in an increase of the superfluid density toward the expected bulk value.
description: 12 pages, 6 figures