cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multilevel Approximation of Univariate Periodic Functions with Gaussians
Creators: name: Alamry, Saeed M.S.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: In this thesis, we provide the error analysis of an algorithm for approximating the cosine frequencies for even functions (the approach being feasible for adaptation to odd functions). We extend these estimates to the multilevel context, both for quasi-interpolation in Chapter 3 and interpolation in Chapter 4. We look at periodic functions in one dimension, i.e., those defined on the unit circle T, where C1(T) denote the linear space of 1-periodic continuous functions. Our analysis is based on tools provided by Fourier analysis. Our research shows that interpolation is easier to analyse since the convergence is much faster. The numerical experiments for quasi-interpolation in Chapter 3 show that the error for approximating the frequencies goes to 10-7 accuracy, while for interpolation in Chapter 4 goes to 10-13 accuracy. Overall, our multilevel interpolation algorithm has a faster convergence rate than the multilevel quasi-interpolation algorithm so we can provide error estimates with greater precision. Various theoretical results for upper bounds are confirmed by numerical simulations throughout the thesis.
Funktionalisierte, superparamagnetische Magnetit-Nanopartikel zum Einsatz in polymeren Kompositmaterialien
Creators: name: Steinke, Timo
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Magnetite-nanoparticles
subject: magneto-rheological elastomers
subject: Smart-Materials
subject: Magnetit-Nanopartikel
subject: magneto-rheologische Elastomere
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Analyse und Optimierung ionenbasierter Beschichtungsverfahren
Creators: name: Schmitz, Carsten
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Thin film technology
subject: process analyzing
subject: Optische Dünnschichttechnologie
subject: Prozessanalyse
subject: IBS
subject: IAD
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
title: Mao’s War on Women: The Perpetuation of Gender Hierarchies Through Yin-Yang Cosmology in the Chinese Communist Propaganda of the Mao Era, 1949-1976
Creators: name: Roberts, Al D.
Publisher: name: Utah State University
Year: 2019

description: The Chinese Communist Party established the People’s Republic of China in 1949 with the intention of creating a social utopia with equality between the sexes and China’s diverse ethnic groups. However, by portraying gender, ethnicity, and politics in propaganda along the lines of yin and yang, the Party perpetuated a situation of oppression for women and minorities.
title: Genetic Mapping of Grass Monoculture and Grass-Legume Mixture Compatibility QTLs in Intermediate Wheatgrass
Creators: name: Mortenson, John
Publisher: name: Utah State University
Year: 2019

description: Due to increased environmental stewardship and fertilizer prices, there is increased interest in using legume mixes in perennial croplands. The objective of this study was to compare quantitative genetic parameters and quantitative trait loci (QTLs) associated with intermediate wheatgrass (Thinopyrum intermedium) when grown in 1) a non-competitive spaced environment, 2) a polyculture with alfalfa (Medicago sativa), and 3) a monoculture with crested wheatgrass (Agropyron desertorum). Traits evaluated include plant growth characteristics (Zadok’s maturity, height, and tiller count), biomass, and forage nutritive value (CP, NDF, ADF, ADL, IVTD, NDFD, NFC, ME, RFQ). A linkage map comprised of 3568 single nucleotide polymorphisms in 21 linkage groups corresponding to 21 homologous chromosome pairs of both parents was used to identify QTLs and QTL x environment interactions (QxE) based on trait averages for each genotype in each environment. Significant genotype x environment interactions were detected for biomass, NDF etc. A total of 26 QTLs were identified, including 6 MASS, 2 TILE, 2 TICR, 1 ZAMA, 1 CP, 3 NDF, 2 ADF, 3 IVTD, and 5 NDFD. A subset of 7 QTLs showed significant QxE interaction. These results indicate that breeders need to evaluate plants in polyculture or swards if these are the intended crop management systems.
Entwicklung und Optimierung eines Analysesystems zur online-Überwachung des Wachstums in geschüttelten Kulturen
Creators: name: Schmidt-Hager, Jörg
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Online process monitoring
subject: light scattering
subject: optical density
subject: biomass sensor
subject: multisensor system
subject: shake flask
subject: Online-Prozessüberwachung
subject: Streulicht
subject: optische Dichte
subject: Biomassesensor
subject: Multisensor
subject: Schüttelkolben
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Totalsynthese von Elansolid B
Creators: name: Weber, Arne
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: total synthesis
subject: biomimetic
subject: methide quinone
subject: Totalsynthese
subject: biomimetisch
subject: Diels-Alder
subject: Methidchinon
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Subword complexity and Sturmian colorings of regular trees
Creators: name: Kim, Dong Han
name: Lim, Seonhee
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E08, 20F65, 05C15, 37E25, 68R15

description: In this article, we study subword complexity of colorings of regular trees. We characterize colorings of bounded subword complexity and study Sturmian colorings, which are colorings of minimal unbounded subword complexity. We classify Sturmian colorings using their type sets. We show that any Sturmian coloring is a lifting of a coloring on a quotient graph of the tree which is a geodesic or a ray with loops possibly attached, thus a lifting of an "infinte word". We further give a complete characterization of the quotient graph for eventually periodic ones.
description: 24 pages
title: Antigone et sa base de données médico-légale
Creators: name: Schwartz-Marín, Ernesto
name: Cruz-Santiago, Arely
Publisher: name: Politika.io
Year: 2019

description: Au Mexique, la tragédie d'Antigone a été mobilisée pour évoquer publiquement la question de la recherche des disparus. Prenant appui sur l’histoire des familles qui ont  assuré la gouvernance du projet Ciencia Forense Ciudadana (Sciences médico-légales citoyennes), cet essai propose une réflexion sur les relations entre les technologies médico-légales et les notions de futilité et de victime. Le projet de donner naissance à des sciences médico-légales citoyennes a en effet permis de concevoir au Mexique la première base de données intégrant une collecte d’ADN, qui soit créée et administrée par des proches des disparus. L’étude présentée ici est le produit de plusieurs années de travail ethnographique et de recherches participatives menées auprès des membres du projet Ciencia Forense Ciudadana. Nous soutenons que de nouvelles relations entre la science, la justice et la vérité peuvent être créées, lorsque les technologies médico-légales ne sont pas exclusivement régies par des principes d'efficacité ou d'expertise pilotées par le haut.
Spektroskopie des 1S0 → 3P0 Uhrenübergangs von 24Mg in einem optischen Gitter bei der vorhergesagten magischen Wellenlänge
Creators: name: Wichert Wübbena, Temmo
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Optical lattice
subject: optical frequency standard
subject: Magnesium
subject: optisches Gitter
subject: optischer Frequenzstandard
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Atomic Space A history and analysis of U.S. policy for the development of nuclear space propulsion and power technologies
Creators: name: Howe, James C.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: Since 1955, the United States has created and later shuttered five major programs to develop nuclear propulsion and reactor power systems for use in space, expending billions of dollars over multiple years but without fielding an operational capability. This thesis examines this history to identify the factors that led American policymakers to embrace these nuclear projects only to end them after significant technical progress had been made. The core finding of this thesis is that development of space-based nuclear technologies becomes prominent on the government’s policy agenda when tied directly to solving a vital and time-critical problem, particularly if related to national security. As a problem fades in relative importance or is solved by other means, the policy imperative to develop nuclear space systems is diminished. Additional findings are that a supportive political environment is essential to initiating and sustaining a nuclear space program, and that high costs, complexity, and long development timelines lead to political friction that over time weakens policy support. Further, influential government officials who promote a nuclear program can play a highly significant role in securing the resources needed to sustain it, while unanticipated events bring unpredictability into the policymaking mix. The thesis centers on two case studies of large-scale programs to develop nuclear rocket propulsion technologies. This qualitative research examined archival and opensource material, supplemented by interviews, to build detailed histories of these programs, and used Kingdon’s Multiple Streams theory as the analytical framework to assess the key factors that guided policy decisions for these technology development efforts. This thesis contributes new knowledge to the space policy literature by providing original histories of two seminal nuclear technology programs, by conducting in-depth analyses of the factors that drove related policy decisions, and through the thorough use of Multiple Streams theory for detailed space policy analyses.
Strain tuning of optical emission energy and polarization in monolayer and bilayer MoS2
Creators: name: Wang, G.
name: Zhu, C. R.
name: Liu, B. L.
name: Marie, X.
name: Feng, Q. X.
name: Wu, X. X.
name: Fan, H.
name: Tan, P. H.
name: Amand, T.
name: Urbaszek, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use micro-Raman and photoluminescence (PL) spectroscopy at 300K to investigate the influence of uniaxial tensile strain on the vibrational and optoelectronic properties of monolayer and bilayer MoS2 on a flexible substrate. The initially degenerate E^1_{2g} Raman mode is split into a doublet as a direct consequence of the strain applied to MoS2 through Van der Waals coupling at the sample-substrate interface. We observe a strong shift of the direct band gap of 48meV/(% of strain) for the monolayer and 46meV/% for the bilayer, whose indirect gap shifts by 86meV/%. We find a strong decrease of the PL polarization linked to optical valley initialization for both monolayer and bilayer samples, indicating that scattering to the spin-degenerate Gamma valley plays a key role.
description: 5 pages, 3 figures
Entwicklung multifunktional modifizierter Silica-Nanopartikel und deren Kompositmaterialien für Anwendungen in der Nervenregeneration
Creators: name: Williams, Sina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Polysialic acid
subject: nanoporous silica nanoparticle
subject: "click" chemistry
subject: functionalization strategies
subject: Polysialinsäure
subject: nanoporöse Silica-Nanopartikel
subject: Collagen
subject: "Click"-Chemie
subject: Funktionalisierungsstrategien
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Entwicklung und Anwendung eines modularen Bioreaktors mit tubulären Membranen
Creators: name: Wolff, Christoph Berend
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Tubular membrane
subject: cell culture
subject: bioreactor
subject: Tubuläre Membran
subject: Zellkultur
subject: Bioreaktor
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
LabelRankT: Incremental Community Detection in Dynamic Networks via Label Propagation
Creators: name: Xie, Jierui
name: Chen, Mingming
name: Szymanski, Boleslaw K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: An increasingly important challenge in network analysis is efficient detection and tracking of communities in dynamic networks for which changes arrive as a stream. There is a need for algorithms that can incrementally update and monitor communities whose evolution generates huge realtime data streams, such as the Internet or on-line social networks. In this paper, we propose LabelRankT, an online distributed algorithm for detection of communities in large-scale dynamic networks through stabilized label propagation. Results of tests on real-world networks demonstrate that LabelRankT has much lower computational costs than other algorithms. It also improves the quality of the detected communities compared to dynamic detection methods and matches the quality achieved by static detection approaches. Unlike most of other algorithms which apply only to binary networks, LabelRankT works on weighted and directed networks, which provides a flexible and promising solution for real-world applications.
description: DyNetMM 2013, New York, USA (conjunction with SIGMOD/PODS 2013)
Myeloid cells in the tumor: a study on targeting myeloid-derived suppressor cells and activating macrophages for cancer immunotherapy
Creators: name: Zhang, Allison
name: Weissman, Irving
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Biology
subject: Macrophages
subject: Myeloid-derived suppressor cells
subject: Tumor Immunology
subject: Calreticulin
subject: CD47

description: Colony stimulating factor-1 receptor (CSF1R) signaling is crucial for macrophage differentiation and survival. Inhibition of CSF1R through monoclonal antibodies and antagonists has been widely explored in preclinical studies due to its ability to deplete pro-tumorigenic tumor-associated macrophages. However, CSF1R inhibition has had limited clinical and therapeutic efficacy, necessitating the need for further investigation into the effects of CSF1R blockade on myelopoiesis in the tumor microenvironment. In this study, we report that deletion of CSF1R in an inducible knockout mouse model leads to the expansion of CXCR2+ granulocytic-myeloid derived suppressor cells (G-MDSCs) in both thioglycollate-induced peritonitis and tumorigenesis. Further, we demonstrate that targeting CXCR2+ G-MDSCs could increase macrophage programmed cell removal (PrCR), and combination with anti-CD47 monoclonal antibody treatment could serve as an effective therapeutic strategy for cancer treatment. Lastly, we begin a broader study on tumor clearance by macrophages through the lens of “eat me” signal calreticulin (Calr), ultimately revealing key molecular components of the mechanism of Calr secretion by macrophages for PrCR.
High operating temperature plasmonic infrared detectors
Creators: name: Nordin, L.
name: Muhowski, A. J.
name: Wasserman, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: III-V semiconductor type-II superlattices (T2SLs) are a promising material system with the potential to significantly reduce the dark current of, and thus realize high-performance in, infrared photodetectors at elevated temperatures. However, T2SLs have struggled to meet the performance metrics set by the longstanding infrared detector material of choice, HgCdTe. Recently, epitaxial plasmonic detector architectures have demonstrated T2SL detector performance comparable to HgCdTe in the 77 K - 195 K temperature range. Here we demonstrate a high operating temperature plasmonic T2SL detector architecture with high-performance operation at temperatures accessible with two-stage thermoelectric coolers. Specifically, we demonstrate long-wave infrared plasmonic detectors operating at temperatures as high as 230 K while maintaining dark currents below the "Rule 07" heuristic. At a detector operating temperature of 230 K, we realize 22.8% external quantum efficiency in a detector absorber only 372 nm thick ($\simλ_0 /25$) with peak specific detectivity of $2.29x10^{9}$ cm Hz$^{1/2}$ W$^{-1}$ at 9.6 $μ$m, well above commercial detectors at the same operating temperature.
description: The following article has been submitted to Applied Physics Letters. After it is published, it will be found at https://aip.scitation.org/journal/apl
The impact of terrorism on the Spanish and Norwegian cultures of intelligence The organisational , operational, doctrinal and ethical changes in the Counter Terrorist Human Intelligence (CT HUMINT) structures. A comparative study from 1970-2018.
Creators: name: Fernández-Casas, Juan C.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: This thesis provides a comparative analysis between Spanish and Norwegian Counter-Terrorist Human Intelligence (CT-HUMINT) structures under the tension of terrorism between 1970 and 2018. The dissertation examines the evolution of CT-HUMINT structures, a topic not broadly addressed by scholars due to the secretiveness of HUMINT (spying). The comparison provides an exceptional comparison due to the asymmetry of both countries in idiosyncrasies, cultures of intelligence and terrorist tensions within the same European context: Spain, a young democracy after a dictatorship with 50 years of terrorism, and Norway, an open and peaceful society with only one relevant terrorist attack. Applying a descriptive phenomenologist framework and more than 40 in-depth interviews1 with intelligence officers, the dissertation empirically exposes unique findings for scholars and practitioners about how Spanish and Norwegian CT-HUMINT structures evolve differently depending on their cultures of intelligence (idiosyncrasy, history, and heritage), and the level of terrorism. Secondly, it answers how those CT-HUMINT structures evolve as reactive or proactive ecosystems and the differences/similarities in doctrines (learning-by-doing/observation) between both countries. Thirdly, the thesis argues the divergences in ethics between Spain (secretiveness) and Norway (transparency) in CT-HUMINT and developments (at different speeds) of those CT-HUMINT ecosystems when Spanish and Norwegian societies are (or not) under terrorism. Finally, the thesis provides relevant findings on CT-HUMINT structures, such as backgrounds, importance and adaptability of CT-HUMINT to this complex world, endogenous/exogenous influences (trigger points), and oversight mechanisms in the opaque CT-HUMINT field.
Liebig's Extract of Meat Company's trade card on procession from Ganden monastery
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Dgaʼ-ldan (Monastery)
Meat extract

description: Advertisement for Liebig's Extract of Meat Company featuring a picture of a procession from Ganden monastery with the following description: Lhasa, Heilige Stad Van Het Lamaïsme. 4. Het klooster Ganden en pelgrimsstoet. Liebig Producten: heerlijke en gezonde keuken.
title: Spiele aus Holz und Papier. Ausgewählte Objekte aus der Spielzeugsammlung des Gewerbemuseums der LGA im Germanischen Nationalmuseum vom 11. November 1994 bis 13. Januar 1995 in der Landesgewerbeanstalt, Ti/lystraße 2, in Nürnberg.
Creators: name: Glaser, Si/Via
Publisher: name: University Library Heidelberg
Year: 2016

description: [nicht vorhanden / not available]
Lokale Untersuchung der Diffusion wechselwirkender Adsorbate auf Oberflächen verschiedener Elektronendichte
Creators: name: Zaum, Christopher
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Scanning tunneling microscope
subject: adsorbate diffusion
subject: adsorbate interaction
subject: Rastertunnelmikroskop
subject: Adsorbatdiffusion
subject: Adsorbatwechselwirkung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Potential epigenetic biomarkers of circulating tumour DNA to improve detection of endocrine therapy resistance in breast cancer
Creators: name: Alahmari, Areej A.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: Background and aims: Endocrine therapy resistance is a major clinical problem and leading cause of metastatic breast cancer (MBC) death. Epigenetic changes via aberrant DNA methylation play an important role in therapy resistance. This thesis aimed to investigate aberrant methylation in oestrogen responsive elements (EREs) as a biomarker of hormone therapy resistance using MCF7 BC cell lines resistant to tamoxifen (TAMR-MCF7) and fulvestrant (FULVR-MCF7), with a view to utilising these signatures for early detection of hormone therapy resistance through circulating-tumour DNA (ctDNA). Methods: The four methylation conversion kits were compared for DNA recovery of to select the most efficient method for ctDNA methylation analysis. Aberrant DNA methylation was analysed in cell lines by shallow-depth whole genome bisulfite analysis (WGBS), and correlated with RNA-Seq data. Lastly, sets of primers were designed and validated the analysis of aberrant ctDNA methylation to apply to longitudinal plasma from patients with MBC. Results: The Premium bisulfite kit from Diagenode was the optimal kit for methylation conversion. EREs were hypermethylated and oestrogen target genes significantly downregulated in hormone therapy resistant cell lines. The hypermethylation phenotype existed more in ERE enhancers than promoters. EREs were not the dominant responsive elements in the aberrant DNA methylation analysis. FOX and AP-1 responsive elements were the top hits for hypermethylation in both resistant cell lines, while TEAD and MYC responsive elements were hypomethylated in FULVR and TAMR, respectively. The designed methylated-specific assays for OSMR promoter, and the enhancer of CBX4, TFF1, TRAF7 TERT, and RASA3 validated the enriched methylation level of these regions at resistant cell line. Conclusions: Results generated in this thesis has identified potential candidate regions that can be applied to longitudinal ctDNA samples from MBC patients to determine whether aberrant ctDNA methylation in EREs can be analysed as a marker of endocrine resistance.
The application of cause effect graph for the college placement process
Creators: name: Jagli, Dhanamma
name: T, Mamatha
name: Mahalingam, Swetha
name: Ojha, Namrata
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper presents a case study on the application of cause effect graph for representing the college placement process. This paper begins with giving a brief overview of the college placement process which will serve as the basis for developing the cause effect graph and the decision table for the same in a systematic manner. Finally, it concludes with the design of test cases thus giving a complete and clear representation about the application of cause-effect graph in the software testing domain.
description: 9 pages,5 figures,IJSEA
Exact solution of Terzaghi's consolidation equation and extension to two/three-dimensional cases (3th versione)
Creators: name: Di Francesco, Romolo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Terzaghi's one-dimensional consolidation equation simulates the visco-elastic behaviour of soils depending on the loads applied as it happens, for example, when foundation are laid and start carrying the weight of the structure. Its application is traditionally based on Taylor's solution that approximates experimental results by introducing non-theoretical variables that, however, contradict the actual behaviou of soils. After careful examination of the theoretical and experimental aspects connected with consolidation, the proposal of this research is a solution consisting in a non-linear equation that can be considered correct as it meets both mathematical and experimental requirements. The solution proposed is extended to include differential equations relating to two/three dimensional consolidation by adopting a transversally isotropic model more consistent with the inner structure of soils. Finally, this essay is complete with application examples that give more reliable results than the traditional solution. Future developments are also highlighted considering that the uniqueness theorem has not been proven yet.
description: 13 pagines, 10 figures
Entwicklung und Charakterisierung neuartiger Hybridfüllstoffe
Creators: name: Witte, Stephen
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Surface functionalization
subject: silanization
subject: silica
subject: pyrolysis
subject: Oberflächenfunktionalisierung
subject: Silanisierung
subject: Kieselsäure
subject: Pyrolyse
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Striped Order in AdS/CFT
Creators: name: Rozali, Moshe
name: Smyth, Darren
name: Sorkin, Evgeny
name: Stang, Jared B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the formation of inhomogeneous order in the Einstein-Maxwell-axion system, dual to a 2+1 dimensional field theory that exhibits a spontaneously generated current density, momentum density and modulated scalar operator. Below the critical temperature, the Reissner-Nordstrom-AdS black hole becomes unstable and stripes form in the bulk and on the boundary. The bulk geometry possesses striking geometrical features, including a modulated horizon that tends to pinch off as T -> 0. On a domain of fixed length, we find a second order phase transition to the striped solution in each of the grand canonical, canonical and microcanonical ensembles, with modulated charges that grow and saturate as we lower the temperature and descend into the inhomogeneous phase. For the black hole on an infinite domain, a similar second order transition occurs, and the width of the dominant stripe increases in the zero temperature limit.
description: 51 pages, 22 figures
Growth rates of cocompact hyperbolic Coxeter groups and 2-Salem numbers
Creators: name: Umemoto, Yuriko
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 20F55 (Primary), 20F65 (Secondary)

description: By the results of Cannon, Wagreich and Parry, it is known that the growth rate of a cocompact Coxeter group in 2-dimensional hyperbolic space $H^2$ and 3-dimensional hyperbolic space $H^3$ is a Salem number. Kerada defined a j-Salem number, which is a generalization of a Salem number. In this paper, we realize infinitely many 2-Salem numbers as the growth rates of cocompact Coxeter groups in 4-dimensional hyperbolic space $H ^4$. Our Coxeter polytopes are constructed by successive gluing of Coxeter polytopes which we call Coxeter dominoes.
description: 21 pages, 12 figures
Analyse von Ausfallrisiken und Heilungschancen eines Bankportfolios aus deutschen mittelständischen Unternehmen
Creators: name: Wolter, Marcus
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Credit portfolio
subject: loss prediction
subject: multi-period
subject: cure-probability
subject: relationship-cancelation
subject: Kreditportfolio
subject: Verlustprognose
subject: Mehrjahreshorizont
subject: Heilungswahrscheinlichkeit
subject: Kundenbeziehungskündigung
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: [no abstract]
Die Rolle von Schreibpausen bei der Prozessanalyse reproduktiver Schreibaufgaben
Creators: name: Weinzierl, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Copying task
subject: primary school
subject: working memory
subject: Abschreibaufgabe
subject: Grundschule
subject: Arbeitsgedächtnis
subject: Dewey Decimal Classification::800 | Literatur, Rhetorik, Literaturwissenschaft

description: [no abstract]
Comparisons of 3D printed materials for biomedical imaging applications
Creators: name: Gabalski, Mitchell A.
name: Smith, Kylie R.
name: Hix, Jeremy
name: Zinn, Kurt R.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: In biomedical imaging, it is desirable that custom-made accessories for restraint, anesthesia, and monitoring can be easily cleaned and not interfere with the imaging quality or analyses. With the rise of 3D printing as a form of rapid prototyping or manufacturing for imaging tools and accessories, it is important to understand which printable materials are durable and not likely to interfere with imaging applications. Here, 15 3D printable materials were evaluated for radiodensity, optical properties, simulated wear, and capacity for repeated cleaning and disinfection. Materials that were durable, easily cleaned, and not expected to interfere with CT, PET, or optical imaging applications were identified. A guide for selecting 3D printed materials for custom research tools through characterization of their merits and limitations in biomedical imaging.
How Smart Should a Forager Be?
Creators: name: Bhat, U.
name: Redner, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We introduce an idealized model of an intelligent forager in which higher intelligence corresponds to a larger spatial range over which the forager can detect food. Such a forager diffuses randomly whenever the nearest food is more distant than the forager's detection range, $R$, and moves ballistically towards the nearest food inside its detection range. Concomitantly, the forager's metabolic energy cost per step is an increasing function of its intelligence. A dumb forager wanders randomly and may miss nearby food, thus making it susceptible to starvation. Conversely, a too-smart forager incurs a large metabolic cost per step during its search for food and is again susceptible to starvation. We show that the forager's lifetime is maximized at an optimal, intermediate level of intelligence.
description: 12 pages, 5 figures, IOP format
Hofstadter butterflies and magnetically induced band gap quenching in graphene antidot lattices
Creators: name: Pedersen, Jesper Goor
name: Pedersen, Thomas Garm
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study graphene antidot lattices (GALs) in magnetic fields. Using a tight-binding model and a recursive Green's function technique that we extend to deal with periodic structures, we calculate Hofstadter butterflies of GALs. We compare the results to those obtained in a simpler gapped graphene model. A crucial difference emerges in the behaviour of the lowest Landau level, which in a gapped graphene model is independent of magnetic field. In stark contrast to this picture, we find that in GALs the band gap can be completely closed by applying a magnetic field. While our numerical simulations can only be performed on structures much smaller than can be experimentally realized, we find that the critical magnetic field for which the gap closes can be directly related to the ratio between the cyclotron radius and the neck width of the GAL. In this way, we obtain a simple scaling law for extrapolation of our results to more realistically sized structures and find resulting quenching magnetic fields that should be well within reach of experiments.
description: 8 pages, 8 figures
Current practice in antireflux and hiatal hernia surgery: exploration of the Belgian field
Creators: name: Depypere, L.
name: Van Veer, H.
name: Nafteux, P.
name: Coosemans, W.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Medicine
Science Policy

description: In Belgium, no publicly available information exists on the spread, quality, results nor follow-up of antireflux and hiatal hernia surgery, in contrast to the recently centralized esophageal cancer surgery. The aim of this study was to create a snap shot of the current practice in Belgium. An online questionnaire was distributed among all members of the Royal Belgian Society for Surgery in autumn 2021. A total of 33 questions spread over four sections were asked, covering demographics, current practice (case load, case mix, indications, preoperative workup, patient information, average length of stay, follow up, quality of life (QOL)), operative techniques and future thoughts. Twenty-four surgeons completed the questionnaire. Surgical indications are discussed multidisciplinary and based on guidelines in 67%. Workup includes endoscopy, pH-monitoring and manometry in 100%. Barium swallow, impedance and gastric emptying tests were added in respectively 83%, 42% and 13%. Symptom or QOL scores were used in 17%. About 81% are performed as primary surgery, 18% redo surgery and 1% resections. Laparoscopic procedures are reported in 99%: Nissen(-Rosetti) 79%, Toupet/Lind 15%, partial gastrectomy 5% and Collis gastroplasty 1%. Discharge is planned on POD1 in 42% and on POD2 in 54%. 50% performs follow-up < 1 year. Interest in further clinical research collaboration was expressed in 92%. Antireflux and hiatal hernia surgery is not standardized in Belgium. There is an evident variety in clinical practice, but this questionnaire shows similarity amongst respondents regarding workup and surgical approach. There is a willingness for future research collaborations.
Vibrational and acoustical characteristics of the piano soundboard
Creators: name: Ege, Kerem
name: Boutillon, Xavier
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The vibrations of the soundboard of an upright piano in playing condition are investigated. It is first shown that the linear part of the response is at least 50 dB above its nonlinear component at normal levels of vibration. Given this essentially linear response, a modal identification is performed in the mid-frequency domain [300-2500] Hz by means of a novel high resolution modal analysis technique (Ege, Boutillon and David, JSV, 2009). The modal density of the spruce board varies between 0.05 and 0.01 modes/Hz and the mean loss factor is found to be approximately 2%. Below 1.1 kHz, the modal density is very close to that of a homogeneous isotropic plate with clamped boundary conditions. Higher in frequency, the soundboard behaves as a set of waveguides defined by the ribs. A numerical determination of the modal shapes by a finite-element method confirms that the waves are localised between the ribs. The dispersion law in the plate above 1.1 kHz is derived from a simple waveguide model. We present how the acoustical coincidence scheme is modified in comparison with that of thin plates. The consequences in terms of radiation of the soundboard in the treble range of the instrument are also discussed.
description: 20th International Congress on Acoustics, ICA 2010, Sydney : Australia
title: Network analysis of international patent data: technology cohort, temporal dynamics and the role of trade
Creators: name: Gao, Yuan
Publisher: name: IMT Alti Studi Lucca
Year: 2018

description: Access to online electronic database and international patent
 data harmonization has enabled more researchers to work
 with patent data. This thesis joins the more recent studies
 to apply network methodologies to patent data analysis in
 order to understand the multi-variable interactions in innovation, knowledge flows, and technological trends.
 The first chapter focuses on technology cohort in the patent
 family networks and citation networks to investigate how technologies are integrated in utility invention and the patterns
 over time. The consistent technological groups found in this
 analysis are compared to the authority-defined system and
 provide a more complete coverage.
 Chapter 2 focuses on community evolution over time. The
 stabilized Louvain method is adopted to improve consistency
 and stability of community detection. The majority mapping
 algorithm is incorporated for community tracking across time
 slices. A new method is developed to identify sets of central
 nodes. A case study of patent filed by applicants in Germany
 is used to demonstrate and verify the method and the results.
 In the last chapter, I apply the methods developed from the
 first two chapters to the pharmaceutical sector. Motivated
 by the needs to encourage pharmaceutical R&D and promote
 globalized innovation, I focus on the effects of being central
 with a favorable balance in international market on being central in global pharmaceutical R&D collaboration. The descriptive results and a further regression analysis shows positive
 effects from export “Coreness” on co-invention centrality. Despite causality is not fully resolved, our results show a fundamental relationship between knowledge production and
 trade in pharmaceuticals.
title: Johann Gottfried Schadow im Spannungsfeld von Klassizismus und Romantik. Zur Ausstellung »Johann Gottfried Schadow (1764-1850) und die Kunst seiner Zeit« im Germanischen Nationalmuseum vom 30.3.1995- 25.6.1995
Creators: name: Luther, Edith
Publisher: name: University Library Heidelberg
Year: 2016

description: [nicht vorhanden / not available]
title: Events and temporary uses in the historic urban  landscape: Lucca Comics & Games between localized  interactions and a worlding project ecology
Creators: name: Marzo, Dania
Publisher: name: IMT Alti Studi Lucca
Year: 2018

description: In the context of the current proliferation of temporary events as
 multifaceted phenomena, the research addresses the spatial
 interactions between a festival and its location. The analysed case,
 Lucca Comics and Games, is currently the largest European event
 dedicated to fantasy culture in terms of the attendance. It takes place
 since 1966 in the Tuscan town of Lucca, a historically preserved and
 ‘atmospherically’ qualified urban landscape. The investigation of the
 relations between the event and this particular setting moves from an
 analysis of multiple temporalities; short-term, long-term and cyclical
 interactions have been investigated in the framework of a processual
 understanding of the city landscape, where eventification and
 festivalisation represent two main increasing trends. The research also
 touches the worlding phenomena of comics-related conventions,
 situating the case within a broader project ecology.
Dark matter distributions around massive black holes: A general relativistic analysis
Creators: name: Sadeghian, Laleh
name: Ferrer, Francesc
name: Will, Clifford M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The cold dark matter at the center of a galaxy will be redistributed by the presence of a massive black hole. The redistribution may be determined using an approach pioneered by Gondolo and Silk: begin with a model distribution function for the dark matter, and ``grow'' the black hole adiabatically, holding the adiabatic invariants of the motion constant. Unlike the approach of Gondolo and Silk, which adopted Newtonian theory together with ad hoc correction factors to mimic general relativistic effects, we carry out the calculation fully relativistically, using the exact Schwarzschild geometry of the black hole. We find that the density of dark matter generically vanishes at r=2R_S, not 4R_S as found by Gondolo and Silk, where R_S is the Schwarzschild radius, and that the spike very close to the black hole reaches significantly higher densities. We apply the relativistic adiabatic growth framework to obtain the final dark matter density for both cored and cusped initial distributions. Besides the implications of these results for indirect detection estimates, we show that the gravitational effects of such a dark matter spike are significantly smaller than the relativistic effects of the black hole, including frame dragging and quadrupolar effects, for stars orbiting close to the black hole that might be candidates for testing the black hole no-hair theorems.
description: 18 pages, 5 figures, submitted to Phys. Rev D
Preoperative transarterial chemoembolization (TACE) + liver resection versus upfront liver resection for large hepatocellular carcinoma (≥5 cm): a systematic review and meta-analysis
Creators: name: Chan, Kai Siang
name: Tay, Wei Xuan
name: Cheo, Feng Yi
name: Shelat, Vishal G.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Hepatocellular carcinoma (HCC) accounts for majority of primary liver cancer. Use of preoperative neoadjuvant transarterial chemoembolization (PN-TACE) may result in tumor shrinkage and improve resectability. This study aims to summarize the outcomes of PN-TACE versus upfront liver resection (Up-LR) in large HCC (≥5 cm). PubMed, Embase, The Cochrane Library, and Scopus were systematically searched till September 2022 for studies comparing PN-TACE versus Up-LR. The primary study outcomes were overall survival (OS), disease-free survival (DFS), and recurrence. Our secondary outcomes were postoperative morbidity and mortality. There were 12 studies with 15 data sets including 3960 patients (PN-TACE n = 2447, Up-LR n = 1513). Majority (89.5%, n = 1250/1397) of patients had Child’s A liver cirrhosis. Incidence of Child’s B cirrhosis was higher in PN-TACE compared to Up-LR (Odds ratio (OR) 1.69, 95% CI: 1.18, 2.41, p = 0.004). Pooled hazard ratio (HR) for OS showed no significant difference between PN-TACE and Up-LR (HR 0.87, 95% CI: 0.64, 1.18, p = 0.37), but DFS was superior in PN-TACE (HR 0.79, 95% CI: 0.63, 0.99, p = 0.04). Subgroup analysis based on study design failed to show any significant effect in randomized controlled trials (n = 2/15 data sets). However, operating time (mean difference (MD) 31.94 min, 95% CI: 2.42, 61.45, p = 0.03) and blood loss (MD 190.93 ml, 95% CI: 10.22, 317.65, p = 0.04) were higher in PN-TACE. Intrahepatic and extrahepatic recurrence, post-operative morbidity and in-hospital mortality were comparable between PN-TACE and Up-LR. In retrospective studies, PN-TACE resulted in superior DFS compared to Up-LR. However, this may be confounded by selection bias.
Comparisons of 3D printed materials for biomedical imaging applications
Creators: name: Gabalski, Mitchell A
name: Smith, Kylie
name: Hix, Jeremy
name: Zinn, Kurt R.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: In biomedical imaging, it is desirable that custom-made accessories for restraint, anesthesia, and monitoring can be easily cleaned and not interfere with the imaging quality or analyses. With the rise of 3D printing as a form of rapid prototyping or manufacturing for imaging tools and accessories, it is important to understand which printable materials are durable and not likely to interfere with imaging applications. Here, 15 3D printable materials were evaluated for radiodensity, optical properties, simulated wear, and capacity for repeated cleaning and disinfection. Materials that were durable, easily cleaned, and not expected to interfere with CT, PET, or optical imaging applications were identified.
title: Cancer tissue classification from DCE-MRI data  using pattern recognition techniques
Creators: name: Venianaki, Maria
Publisher: name: IMT Alti Studi Lucca
Year: 2019

description: Cancer research has significantly advanced in recent years
 mainly through developments in medical genomics and bioinformatics. It is expected that such approaches will result in
 more durable tumor control and fewer side effects compared
 with conventional treatments such as radiotherapy or chemotherapy. From the imaging standpoint, non-invasive imaging
 biomarkers (IBs) that assess angiogenic response and tumor
 environment at an early stage of therapy are of utmost importance since they could provide useful insights into therapy planning. However, the extraction of IBs is still an open
 problem since there are no standardized imaging protocols
 yet or established methods for the robust extraction of IBs.
 DCE-MRI is amongst the most promising non-invasive functional imaging modalities while compartmental pharmacokinetic (PK) modeling is the most common technique used for
 DCE-MRI data analysis. However, PK models suffer from a
 number of limitations such as modeling complexity, which
 often leads to variability in the computed biomarkers. To address these problems, alternative DCE-MRI biomarker extraction strategies coupled with a profound understanding of the
 physiological meaning of IBs is a sine qua non condition. To
 this end, a more recent model-free approach has been suggested in literature for the analysis of DCE-MRI data, which
 relies on the shape classification of the time-signal uptake
 curves of image pixels in a selected tumor region of interest.
 This thesis is centered on this new approach and the clinical
 question whether model-free DCE-MRI data analysis has the
 potential to provide robust, clinically significant biomarkers
 using pattern recognition and image analysis techniques.
Chemie und Kunst - Analytik, Methodenentwicklung zur Schichtentrennung und Provenienzforschung am "Trompetenden Putto"
Creators: name: Wengerowsky, Dagmar
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2022
Subjects: subject: Secco-like painting
subject: colors
subject: painting technique
subject: analytics
subject: base melt
subject: provenance research
subject: Gustav Klimt
subject: Secco-ähnliches Gemälde
subject: Farben
subject: Maltechnik
subject: Analytik
subject: Basenschmelze
subject: Provenienz-Forschung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Unter Embargo bis 25.03.2025