cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Logarithmic Finite-Size Effects on Interfacial Free Energies: Phenomenological Theory and Monte Carlo Studies
Creators: name: Schmitz, Fabian
name: Virnau, Peter
name: Binder, Kurt
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The computation of interfacial free energies between coexisting phases (e.g.~saturated vapor and liquid) by computer simulation methods is still a challenging problem due to the difficulty of an atomistic identification of an interface, and due to interfacial fluctuations on all length scales. The approach to estimate the interfacial tension from the free energy excess of a system with interfaces relative to corresponding single-phase systems does not suffer from the first problem but still suffers from the latter. Considering $d$-dimensional systems with interfacial area $L^{d-1}$ and linear dimension $L_z$ in the direction perpendicular to the interface, it is argued that the interfacial fluctuations cause logarithmic finite-size effects of order $\ln (L) / L^{d-1}$ and order $\ln (L_z)/L ^{d-1}$, in addition to regular corrections (with leading order $\text{const}/L^{d-1}$). A phenomenological theory predicts that the prefactors of the logarithmic terms are universal (but depend on the applied boundary conditions and the considered statistical ensemble). The physical origin of these corrections are the translational entropy of the interface as a whole, "domain breathing" (coupling of interfacial fluctuations to the bulk order parameter fluctuations of the coexisting domains), and capillary waves. Using a new variant of the ensemble switch method, interfacial tensions are found from Monte Carlo simulations of $d=2$ and $d=3$ Ising models and a Lennard Jones fluid. The simulation results are fully consistent with the theoretical predictions.
description: 27 pages, 16 figures
title: Chronic Prostatitis: ¿Have we had other findings supporting PI RADS II on the prostate peripheral zone?
Creators: name: Aineseder, Martina
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Tissue characterisation
subject: Outcomes analysis
subject: MR
subject: Genital / Reproductive system male

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Multiparametric-MRI(MP-MRI) has revolutionized the study of prostate pathology, and the emergence of PI RADS v2 has produced a unification of different criteria. However, in many cases, approaching a diagnosis can be difficult. It is recognized in...
Métodos de análisis de enriquecimiento funcional en estudios genómicos
Creators: name: García García, Francisco
Publisher: name: Zenodo
Year: 2016

description: Computational methods play a key role for the resolution of clinical and biological problems. Generation of large amounts of data from high-throughput technologies and the increase of accessible information from biological da-
 tabases have boosted the demand for new methodologies able to link both elements.
 To address this need for the biomedical research community, this work presents a serie of contributions in the field of Functional Genomics to help to researchers in the functional interpretation of genomic data analysis.
 In the first part of this thesis, we describe the development and implementation of an enrichment analysis oriented to miRNAs studies. These small RNA molecules have been implicated in numerous diseases. However, it remains
 largely unknown, its specific impact on biological pathways and cellular phenotypes in addition to its precise role in the regulation of genes. To improve and facilitate the investigation of the functions and miRNA-gene regulation,
 we generated a functional enrichment method for miRNAs studies to interpret such results. The flexibility of this approach allows us the inclusion of other relevant variables in the study (weights of biological elements, relations-
 hips between miRNA-gene ...) and a multidimensional approach integrating different genomic data.
 Functional enrichment analysis of genomic data provides results that are part of the assessed experiment. However, the small sample size of most of the experiments and its marking to a specific scenario, represent limiting
 factors when evaluating such studies. Therefore, to improve the integration of various experiments in the functional context and provide clarity in the interpretation, in the second part of this thesis we present a meta-analysis
 method to detect functional results of global interest, reducing the effect of specific experiment. This methodology also checks the consistency of the experiments and generates an estimate of the effect having a greater statistical
 power than that obtained for each experiment separately.
 Both approaches allow us a better interpretation of the analysis of genomic data in the context of Systems Biology.
Self-similarity and universality of void density profiles in simulation and SDSS data
Creators: name: Nadathur, S.
name: Hotchkiss, S.
name: Diego, J. M.
name: Iliev, I. T.
name: Gottlöber, S.
name: Watson, W. A.
name: Yepes, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The stacked density profile of cosmic voids in the galaxy distribution provides an important tool for the use of voids for precision cosmology. We study the density profiles of voids identified using the ZOBOV watershed transform algorithm in realistic mock luminous red galaxy (LRG) catalogues from the Jubilee simulation, as well as in void catalogues constructed from the SDSS LRG and Main Galaxy samples. We compare different methods for reconstructing density profiles scaled by the void radius and show that the most commonly used method based on counts in shells and simple averaging is statistically flawed as it underestimates the density in void interiors. We provide two alternative methods that do not suffer from this effect; one based on Voronoi tessellations is also easily able to account from artefacts due to finite survey boundaries and so is more suitable when comparing simulation data to observation. Using this method we show that voids in simulation are exactly self-similar, meaning that their average rescaled profile does not depend on the void size. Within the range of our simulation we also find no redshift dependence of the profile. Comparison of the profiles obtained from simulated and real voids shows an excellent match. The profiles of real voids also show a universal behaviour over a wide range of galaxy luminosities, number densities and redshifts. This points to a fundamental property of the voids found by the watershed algorithm, which can be exploited in future studies of voids.
description: 14 pages, 11 figs. For submission to MNRAS, comments welcome. For the busy reader: the main results are in Sections 5 and 6, Figs. 7, 9 and 10. Public void catalogue available at http://research.hip.fi/user/nadathur/download/dr7catalogue/
title: Can intravoxel incoherent motion (IVIM) be used to monitor treatment response in cystic fibrosis (CF) respiratory tract exacerbation (RTE)?
Creators: name: Ciet, Pierluigi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Lung
subject: Paediatric
subject: Computer applications
subject: MR-Diffusion/Perfusion
subject: Experimental
subject: Image manipulation / Reconstruction
subject: Treatment effects
subject: Computer Applications-Detection, diagnosis
subject: Technical aspects
subject: Chronic obstructive airways disease
subject: Image registration
subject: Inflammation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Cystic fibrosis (CF) is a lung disease characterized by chronic airways infections, inflammations, respiratory tract exacerbations (RTE) and progressive lung damage [1]. Diffusion-weighted MR imaging (DW-MRI) might have great potential to monitor CF...
Sub-10 nm Probing of Ferroelectricity in Heterogeneous Materials by Machine Learning Enabled Contact Kelvin Probe Force Microscopy
Creators: name: Schmitt, Sebastian W.
name: Vasudevan, Rama K.
name: Seifert, Maurice
name: Borisevich, Albina Y.
name: Deshpande, Veeresh
name: Kalinin, Sergei V.
name: Dubourdieu, Catherine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Reducing the dimensions of ferroelectric materials down to the nanoscale has strong implications on the ferroelectric polarization pattern and on the ability to switch the polarization. As the size of ferroelectric domains shrinks to nanometer scale, the heterogeneity of the polarization pattern becomes increasingly pronounced, enabling a large variety of possible polar textures in nanocrystalline and nanocomposite materials. Critical to the understanding of fundamental physics of such materials and hence their applications in electronic nanodevices, is the ability to investigate their ferroelectric polarization at the nanoscale in a non-destructive way. We show that contact Kelvin probe force microscopy (cKPFM) combined with a k-means response clustering algorithm enables to measure the ferroelectric response at a mapping resolution of 8 nm. In a BaTiO3 thin film on silicon composed of tetragonal and hexagonal nanocrystals, we determine a nanoscale lateral distribution of discrete ferroelectric response clusters, fully consistent with the nanostructure determined by transmission electron microscopy. Moreover, we apply this data clustering method to the cKPFM responses measured at different temperatures, which allows us to follow the corresponding change in polarization pattern as the Curie temperature is approached and across the phase transition. This work opens up perspectives for mapping complex ferroelectric polarization textures such as curled/swirled polar textures that can be stabilized in epitaxial heterostructures and more generally mapping the polar domain distribution of any spatially-highly-heterogeneous ferroelectric materials.
Intelligenza artificiale e valutazione della ricerca
Creators: name: Tafani, Daniela
Publisher: name: Zenodo
Year: 2023

description: Intelligenza artificiale e valutazione della ricerca
AISA - VIII Convegno annuale - Il futuro della scienza aperta: monopoli intellettuali, valutazione, infrastrutture, formazione 
Sezione "Valutazione"
title: Primary CNS lymphoma. Can we diagnosis it?
Creators: name: Rodríguez Chikri, Beatriz Miriam
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: MR-Diffusion/Perfusion
subject: MR
subject: CT
subject: Oncology
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Describe CT and MRI findings which allow for the establishment of a more accurate differential diagnosis between primary central nerve system lymphoma (PCNSL) and other entities such as glioblastoma or...
Loss of Indigenous Linguistic Diversity in Bangladesh.pdf
Creators: name: Adhikary, Falguni
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 441008
subject: Sociology of culture

description: Bangladesh, a nation known for its rich cultural and ethnic tapestry, is home to over 50 Indigenous Peoples speaking at least 37 distinct languages in addition to the predominant Bengali. Despite their cultural significance, these indigenous languages, including Chakma, Mro, and Marma, face a crisis due to their exclusion from the formal education system. The lack of inclusion in the national curriculum, compounded by insufficient resources and support, has led to severe consequences such as cultural erosion, educational inequality, and the risk of language extinction. Efforts by non-governmental organizations and local activists aim to mitigate these issues, but face challenges related to funding and systemic support. To address this crisis, a comprehensive approach involving government action, curriculum development, and community engagement is crucial to preserve Bangladesh's linguistic and cultural diversity.
Electromagnetic annihilation into charged leptons and scattering off nucleons of spin-3/2 Majorana particles
Creators: name: Nieves, José F.
name: Sahu, Sarira
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the cross section for the electromagnetic annihilation into charged leptons, and the electromagnetic scattering off nucleons, of spin-3/2 self-conjugate (Majorana) particles using the general form of the electromagnetic vertex function that was obtained previously for such particles. In addition to the restrictions imposed by common principles such as electromagnetic gauge invariance and hermiticity, the vertex function incorporates the restriction due to the Majorana condition as well as the particular properties related to the spinors in the Rarita-Schwinger representation, and is the counterpart of the so-called anapole interaction of spin-1/2 Majorana particles. The formulas obtained for the cross sections share certain similarities with the corresponding results in the spin-1/2 case, but they also reveal some important differences which are pointed out and discussed. The results given here can be useful for applications involving the electromagnetic interactions of spin-3/2 or spin-1/2 Majorana particles in several contexts that have been of interest in the recent literature such as nucleosynthesis and dark matter.
description: 21 pages
title: Mesenteric lymph nodes; when to call these abnormal in lymphoma children on routine surveillance sonography?
Creators: name: Siddiqui, Salman
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Paediatric
subject: Ultrasound
subject: Education
subject: Lymphoma
subject: Peritoneum

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: We aimed to reaffirm the already established size criteria of mesenteric lymph nodes on imaging in children being treated for lymphoma using ultrasound in order to establish guidelines for surveillance...
Econophysics, Statistical Mechanics Approach to
Creators: name: Yakovenko, Victor M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This is a review article for Encyclopedia of Complexity and System Science, to be published by Springer http://refworks.springer.com/complexity/. The paper reviews statistical models for money, wealth, and income distributions developed in the econophysics literature since late 1990s.
description: 24 pages, 11 figures, 151 citations. V.2: one reference added. V.3: many minor corrections, some references added. V.4: many minor stylistic corrections incorporated after receiving the proofs
On the dust content of galaxy clusters
Creators: name: Gutierrez, C. M.
name: Lopez-Corredoira, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study to estimate the dust content in galaxy clusters by using one the most complete existing catalogues of galaxy clusters based on SDSS data and following two methods: the first one compares the colours of samples of galaxies in the background of clusters with those of galaxies in the field. Using this method, we have explored clustercentric distances up to 6 Mpc. The galaxies used in this first method were selected from the SDSS-DR9, among those having reliable photometry and accurate estimation of photometric redshifts. The results are largely independent of the galactic cut applied. At |b|>20 deg., the sample contains 56,985 clusters in the redshift range 0.05
description: Accepted for publication in A&A. v2: errata in title corrected
title: Ciężary publiczne
Creators: name: Guziński, Maciej
Publisher: name: E-Wydawnictwo. Prawnicza i Ekonomiczna Biblioteka Cyfrowa. Wydział Prawa, Administracji i Ekonomii Uniwersytetu Wrocławskiego
Year: 2020

description: Sfery ingerencji administracji, których istotą jest min. ograniczenie zachowania różnych podmiotów, obejmują także możliwość, a niekiedy konieczność podejmowania działań przez administrację nakładających na te podmioty określone ciężary (obowiązki, wymogi), służące ochronie określonych wartości, dóbr, interesów społeczno-ekonomicznych, kwalifikowanych jako ciężary publiczne w obszarze policji administracyjnej. Z instytucją obciążeń publicznych mamy także do czynienia w sferze zarządzania mieniem publicznym. Podmioty publiczne i organy zarządzające mieniem publicznym poddane są bowiem nie tylko normom prawa prywatnego, ale także ich zachowanie regulowane jest w pewnym zakresie przez prawo publiczne. Następuje to przez ustalenie pewnych reguł działania, którymi winny się one kierować, zarządzając tym mieniem, mając na uwadze dobro publiczne, a nie jedynie majątkowe interesy podmiotu, który reprezentują. Te określone wzorce zachowań stanowią zarazem punkt odniesienia do działań kontrolnych i nadzorczych.
A new solution for mirror coating in $γ$-ray Cherenkov Astronomy
Creators: name: Bonardi, Antonio
name: Pühlhofer, Gerd
name: Hermanutz, Stephan
name: Santangelo, Andrea
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In the $γ$-ray Cherenkov Astronomy framework mirror coating plays a crucial role in defining the light response of the telescope. We carried out a study for new mirror coating solutions with both a numerical simulation software and a vacuum chamber for small sample production. In this article, we present a new mirror coating solution consisting of a 28-layer interferometric SiO$_{2}$-TiO$_{2}$-HfO$_{2}$ design deposited on a glass substrate, whose average reflectance is above $90\%$ for normally incident light in the wavelength range between 300 and 550 nm.
description: 6 pages, 5 figures. Article submitted to Experimental Astronomy, the final publication is available at link.springer.com
Co-cultures of cerebellar slices from mice with different reelin genetic backgrounds as a model tostudy cortical lamination - Supplementary Material 4
Creators: name: Merighi, Adalberto
name: Lossi, Laura
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 320904
subject: Computational neuroscience (incl. mathematical neuroscience and theoretical neuroscience)

description: Comparative features of some Voronoi programs that can be used for the study of cellular sociology
Modelling the Extreme X-ray Spectrum of IRAS 13224-3809
Creators: name: Chiang, Chia-Ying
name: Walton, D. J.
name: Fabian, A. C.
name: Wilkins, D. R.
name: Gallo, L. C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The extreme NLS1 galaxy IRAS 13224-3809 shows significant variability, frequency depended time lags, and strong Fe K line and Fe L features in the long 2011 XMM-Newton observation. In this work we study the spectral properties of IRAS 13224-3809 in detail, and carry out a series of analyses to probe the nature of the source, focusing in particular on the spectral variability exhibited. The RGS spectrum shows no obvious signatures of absorption by partially ionised material (warm absorbers). We fit the 0.3-10.0 keV spectra with a model that includes relativistic reflection from the inner accretion disc, a standard powerlaw AGN continuum, and a low-temperature (~0.1 keV) blackbody, which may originate in the accretion disc, either as direct or reprocessed thermal emission. We find that the reflection model explains the time-averaged spectrum well, and we also undertake flux-resolved and time-resolved spectral analyses, which provide evidence of gravitational light-bending effects. Additionally, the temperature and flux of the blackbody component are found to follow the $L\propto T^{4}$ relation expected for simple thermal blackbody emission from a constant emitting area, indicating a physical origin for this component.
description: 12 pages, 7 figures, accepted for publication in MNRAS
title: Reliability of the Alberta stroke early CT scan (ASPECTS) and stroke classification in an emergency telestroke context
Creators: name: Sossa, Didier
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neuroradiology brain
subject: Vascular
subject: Emergency
subject: CT
subject: CT-Angiography
subject: Catheter arteriography
subject: Teleradiology
subject: Technology assessment
subject: Thrombolysis
subject: Education and training
subject: Ischaemia / Infarction

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate yhe use of mobile technologies that allow expert radiologist in acute stroke to diagnose this pathology remotly. To determine and compare the clinical performance of observers using a conventional mobile device (IPAD) against the...
Generation of cosmic magnetic fields in electroweak plasma
Creators: name: Dvornikov, Maxim
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the generation of strong magnetic fields in magnetars and in the early universe. For this purpose we calculate the antisymmetric contribution to the photon polarization tensor in a medium consisting of an electron-positron plasma and a gas of neutrinos and antineutrinos, interacting within the Standard Model. Such a contribution exactly takes into account the temperature and the chemical potential of plasma as well as the photon dispersion law in this background matter. It is shown that a nonvanishing Chern-Simons parameter, which appears if there is a nonzero asymmetry between neutrinos and antineutrinos, leads to the instability of a magnetic field resulting to its growth. We apply our result to the description of the magnetic field amplification in the first second of a supernova explosion. It is suggested that this mechanism can explain strong magnetic fields of magnetars. Then we use our approach to study the cosmological magnetic field evolution. We find a lower bound on the neutrino asymmetries consistent with the well-known Big Bang nucleosynthesis bound in a hot universe plasma. Finally we examine the issue of whether a magnetic field can be amplified in a background matter consisting of self-interacting electrons and positrons.
description: 3 pages, 7 pdf figures, pdflatex, Elsevier style; Contribution to the Proceedings of 37th ICHEP
Dynamisch individualisiertes Pricing im Schweizer Detailhandel. Chancen und Risiken für die Kundenloyalität im Zeitalter von Digitalisierung und Big Data
Creators: name: Xevelonakis, Evangelos
name: Müller, Marcel
Publisher: name: Zenodo
Year: 2019
Subjects: Dynamic Pricing
Next Best Offer
Kundenbindung
Digital Natives
Personalisierung
Datenintegration
HWZ Working Paper Series
Business Analytics & Technologies

description: Preisdifferenzierung, ob räumlich, zeitlich, quantitativ oder qualitativ, gehört seit Jahrzehnten zum Alltag. Durch die zunehmende Digitalisierung und die damit einhergehende hohe Verfügbarkeit von Informationen, insbesondere von Kundendaten, eröffnen sich neue Möglichkeiten, Preisdifferenzierung dynamisch und individuell zu gestalten. Während im Onlinehandel der Preis oft dynamisch differenziert wird, ist dies im stationären Detailhandel zurzeit selten der Fall. Ein Grund dafür ist, dass die Akzeptanz einer dynamisch individualisierten Preisdifferenzierung und deren Einflussfaktoren auf die Kundenloyalität weitgehend unerforscht sind. In der vorliegenden Arbeit wird diese Fragestellung mittels quantitativer Methoden untersucht. Im Rahmen der empirischen Untersuchung zeigt sich, dass Transparenz und Nachvollziehbarkeit bezüglich Preisgestaltung wichtige Parameter zur Erhöhung der Akzeptanz von dynamisch individualisierten Ansätzen sind. Allerdings wurde auch eine Intensions-Verhaltens-Lücke festgestellt: Ein beachtlicher Anteil der Kunden, die Kundenprogramme aus Gründen des Datenschutzes (Stichwort «gläserne Kunden») ablehnen, sind dennoch auf sozialen Medien aktiv. Die Ergebnisse zeigen weiter, dass Kunden zwischen 18 und 35 Jahren, die sogenannten Millennials, deutlich empfänglicher für individualisierte Preise sind als Kunden fortgeschrittenen Alters. Allerdings ist die Teilnahmerate an Kundenloyalitäts-Programmen bei Millennials deutlich tiefer als bei älteren Kunden, was die Notwendigkeit einer Anpassung traditioneller Kundenbindungsprogramme an die veränderten Kundenbedürfnisse deutlich macht. Die zunehmende Individualisierung und Dynamisierung erfordern zusätzlich eine flexible Systemarchitektur, die in der Lage ist, sowohl interne Positionssysteme als auch Batch- und Real-Time-Analysesysteme in ein Gesamtsystem zu integrieren.
Synthesis of new water reducer superplasticizers for building materials
Creators: name: Capacchione, Clotilde
Publisher: name: Universita degli studi di Salerno
Year: 2021
Subjects: subject: CHIM/06 CHIMICA ORGANICA

description: 2019 - 2020
description: This industrial PhD project is focused on the development of new additives called Superplasticizers (SPs) that are particularly interesting for the engineering of construction field. These attracting molecules are organic compounds that are employed for building materials to improve their fresh workability capability and their mechanical properties in the hardened state. Their ability to disperse cement grains is due to their structure: they contain negatively charged functional groups that can interact with the positive charges present on the surface of the cement granules, thus avoiding the collapse of the cement particles and consequently making it fluid. Even if they are added in low quantity, they decrease the amount of needed mixing water and control the setting time without losing fluidity of the pastes, which results in higher strength and better durability of final materials. Dispersants have given an important and fundamental improvement in materials engineering during the last century, in the late twenties the first-generation additives were developed from by-products obtained from the paper firm. Due their important applications in engineering field, research has been focused on the development of new and more performing plasticizers such as naphthalene/melamine sulfonate derivatives and polycarboxylate esters/ethers, that represent the second and third generation of additives. To supply to the growing demand of new and more performing admixtures, the scientists have been pushing forward with breakthroughs in technology and knowledge. This PhD project fits into this contest and its aim is to provide innovative solutions for this framework. At first, we propose a study1,2 to investigate the role of new unconventional plasticizers on concrete, respect to the polymeric counterpart that are currently commercially available. ... [editeb by Author]
Heavy-flavor observables at RHIC and LHC
Creators: name: Nahrgang, Marlene
name: Aichelin, Joerg
name: Bass, Steffen
name: Gossiaux, Pol Bernard
name: Werner, Klaus
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the charm-quark propagation in the QGP media produced in ultrarelativistic heavy-ion collisions at RHIC and the LHC. Purely collisional and radiative processes lead to a significant suppression of final $D$-meson spectra at high transverse momentum and a finite flow of heavy quarks inside the fluid dynamical evolution of the light partons. The $D$-meson nuclear modification factor and the elliptic flow are studied at two collision energies. We further propose to measure the triangular flow of $D$ mesons, which we find to be nonzero in non-central collisions.
description: Proceedings of the 24th Quark Matter conference, 19-24 May 2014, Darmstadt, Germany. 4 pp
Assessing the quality of the excess chemical potential flux scheme for degenerate semiconductor device simulation
Creators: name: Abdel, Dilara
name: Farrell, Patricio
name: Fuhrmann, J
Publisher: name: Weierstrass Institute
Year: 2020
Subjects: subject: degenerate semiconductors
subject: drift-diffusion equations
subject: finite volume method
subject: flux discretization
subject: Scharfetter--Gummel scheme
subject: 35Q81
subject: 35K57
subject: 65N08

description: The van Roosbroeck system models current flows in (non-)degenerate semiconductor devices. Focusing on the stationary model, we compare the excess chemical potential discretization scheme, a flux approximation which is based on a modification of the drift term in the current densities, with another state-of-the-art Scharfetter-Gummel scheme, namely the diffusion-enhanced scheme. Physically, the diffusion-enhanced scheme can be interpreted as a flux approximation which modifies the thermal voltage. As a reference solution we consider an implicitly defined integral flux, using Blakemore statistics. The integral flux refers to the exact solution of a local two point boundary value problem for the continuous current density and can be interpreted as a generalized Scharfetter-Gummel scheme. All numerical discretization schemes can be used within a Voronoi finite volume method to simulate charge transport in (non-)degenerate semiconductor devices. The investigation includes the analysis of Taylor expansions, a derivation of error estimates and a visualization of errors in local flux approximations to extend previous discussions. Additionally, drift-diffusion simulations of a p-i-n device are performed.
title: Lung adenocarcinoma: Spectrum of radiologic findings
Creators: name: Maaloul, Imen
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: CT
subject: Lung

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lung cancer is the leading cause of cancer-related deaths worldwide. Of these, non-small cell lung cancer (NSCLC) accounts for approximately 85% and encompasses several subtypes ADDIN EN.CITE...
Inklusion und Geschichtswettbewerb – Barrierefreier Geschichtswettbewerb?
Creators: name: Alavi, Bettina
Publisher: name: B. Alavi, Inklusion und Geschichtswettbewerb – Barrierefreier Geschichtswettbewerb?, «Public history weekly», 1, 2013, n. 1
Year: 2013

description: Am Geschichtswettbewerb des Bundespräsidenten nehmen durchschnittlich 5000 SchülerInnen teil. Die Zahl der Beiträge aus Real-, Haupt- oder Förderschulen ist jedoch seit Jahren fallend. Der Geschichtswettbewerb richtet sich aber an alle SchülerInnen. Am Beispiel eines aktuellen Beitrags aus einer Förderschule soll auf wichtige Stolpersteine hingewiesen werden, die die Teilnahme von SchülerInnen mit Lernschwierigkeiten erschweren und Maßnahmen vorgeschlagen werden, die einen barrierefreien Zugang zum Geschichtswettbewerb ermöglichen.
D2.2 Network application layer software
Creators: name: Pribbernow, Claus
name: Marin, Maria Alejandra Sanchez
name: Musahl, Mathias
name: Grohmann, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: SPINAL
SPI Communication
BSN
sensor network
heterogenous sensor network

description: This deliverable presents the network communication and
 synchronization between the BSN components. The
 documentation will cover two software implementation of a
 network communication and outline the link layer and
 protocol layer implementation. The SPINAL protocol as a
 packet based protocol implemented in Zephyr RTOS with
 threads and scheduler, and the BSN_SPI protocol, as a time
 division multiplexing method with a deterministic
 transmission delays.
Settlement-Systeme als Securities. Entwicklung und Anwendung der ILS-Blockchain
Creators: name: te Neues, Natascha
name: Bromann, Karsten
Publisher: name: Zenodo
Year: 2019
Subjects: Blockchain
Insurance Linked Securities
Rückversicherung
HWZ Working Paper Series
Business Analytics & Technologies

description: Versicherte vertrauen typischerweise ihren Versicherern, denn sonst würden sie nicht für ein zukünftiges Zahlungsversprechen vorab ihre Prämie bezahlen. Daher scheint der Austausch der Datenbank-Systeme dieser zentralen Vertrauensinstanz durch ein dezentrales System wie eine Blockchain-Infrastruktur keinen Vorteil zu bringen. Ursprünglich lag die gesamte Infrastruktur auf dem zentralen Server des Unternehmens. Definitionsgemäss würde jetzt bei einer dezentralen Infrastruktur zudem noch der Kunde die gesamte Information duplizieren müssen. Ein Beispiel für die begrifflichen Herausforderungen in diesem Kontext ist die oft im Zusammenhang mit Blockchain-Anwendungen in der Versicherung genannte Flugverspätungsversicherung der Axa (AXA, 2017; Coindesk, 2017). Zwar ist diese tatsächlich mit einem Blockchain-System auf der Ethereum-Plattform implementiert, aber die eigentliche Innovation liegt in der Anbindung an eine öffentlich zugängliche Flugverkehrsdatenbank und der automatisierten Auszahlung der Gutschrift im Schadenfall. Eine Tätigkeit, die genauso gut von einem zentralen Server der Axa bei kryptografischer Authentifizierung des Versicherungsnehmers vorgenommen werden kann, solange dieser der Axa vertraut. Hier soll nun von einem Anwendungsbeispiel berichtet werden, in dem eine aufgetretene Herausforderung in einem Geschäftsprozess tatsächlich mittels des Einsatzes einer Blockchain eine Lösung fand. Dabei wird die Blockchain als Settlement-System genutzt, um die sichere Transaktion von Insurance Linked Securities zu gewährleisten. Das Beispiel betrifft die ILS-Blockchain. Bei dieser Blockchain entsteht zwischen institutionellen Anlegern und ausgewählten Service-Providern ein Peer-to-Peer-System. Die institutionellen Anleger investieren in verbriefte versicherungsbezogene Anlagen – sogenannte Insurance Linked Securities. Seit der ersten Transaktion vor 19 Monaten ist das Universum der ILS-Blockchain kontinuierlich gewachsen. Mittlerweile wurden schon 21 Cat Bond Lites als private Verbriefungen individueller Rückversicherungsverträge über die ILS-Blockchain emittiert. Das kombinierte Emissionsvolumen beträgt über 50 Mio. USD. Neben neun ILS-Fonds und Mandaten ist ein globaler Rückversicherer Teilnehmer der ILS-Blockchain. Mehrere Banken haben Interesse bekundet, als Teilnehmer oder Beobachter eigene Server anzuschliessen. Eine global agierende Bank prüft, ob sie eine Brückenrolle als Sub-Custodian für solche Interessenten einnehmen kann, die aus verschiedenen Gründen nicht direkt teilnehmen können oder wollen. Für Strukturierer oder Emittenten von Cat Bond Lites wie Solidum Partners wiederum bietet die ILS-Blockchain eine kostensparende Alternative zu den herkömmlichen Prozessen, da die Kostenstruktur durch den Wegfall der teuren Services der Investmentbanken optimiert werden konnte.
Effectiveness of Sensory stimulation and Early mobility on consciousness, mental state, RLA stage, and hospital stay in patients with Traumatic brain injury-A Research Protocol
Creators: name: Purushe, Devyani Atul
Publisher: name: Zenodo
Year: 2023

description: Spirit checklist for Effectiveness of Sensory stimulation and Early mobility on consciousness, mental state, RLA stage, and hospital stay in patients with Traumatic brain injury-A Research Protocol.
Meccanismi speciali di monitoraggio e tutela dei diritti umani nei settori della migrazione e dell’asilo: gli organismi dell’Unione europea nel contesto del sistema dei rappresentanti speciali delle Organizzazioni internazionali
Creators: name: Gatta, Francesco Luigi
Publisher: name: Universita' degli Studi di Salerno
Year: 2020
Subjects: Asylum seekers and migrants
Special Rapporteurs and Representatives
European Union
Council of Europe
United Nations

description: In the last few decades, various international organizations have established special mechanisms for human rights monitoring and protection, including special rapporteurs and representatives, acting on the basis of geographical or thematic mandate. This article examines the special mechanisms for human rights monitoring and protection created within the European Union, assessing their features, functioning and activities, also in comparison with the more experienced special mechanisms established within other international organizations such as the UN, the African Union and the Council of Europe. Specifically, the focus will be on migration and asylum, areas in which, recently, all the mentioned organizations have felt the need to put in place ad hoc mechanisms for the protection and monitoring of migrants’ rights.
Na order and Co charge disproportionation in Na$_{x}$CoO$_{2}$
Creators: name: Mukhamedshin, I. R.
name: Alloul, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have synthesized and characterized different stable phases of sodium cobaltates Na$_{x}$CoO$_{2}$ with sodium content $0.65
description: 7 pages, 6 figures, accepted to proceedings of ECRYS-2014, will be published in Physica B
title: What should the radiologist point out in CT practiced in infective endocarditis?
Creators: name: Maaloul, Imen
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cardiac
subject: CT-High Resolution
subject: Diagnostic procedure
subject: Infection

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this study is to precise the computed tomography (CT) features of both cardiac and extra cardiac findings in infective endocarditis...
Digitalisierung des Rechnungswesens an der Technischen Universität Hamburg : IT-Verfahren DRiVe
Creators: name: Pekron, Volker
Publisher: name: TUHH Universitätsbibliothek
Year: 2023
Subjects: subject: Digitalisierung
subject: DRiVe
subject: E-Rechnung
subject: Rechnungswesen
subject: Verwaltung
classificationCode: 650
subject: Management, Public Relations

description: »Keine Buchung ohne Beleg«. Dieser Grundsatz des Rechnungswesens scheint im Zuge der Digitalisierung von Verwaltungsprozessen als zunehmend antiquiert, da zumeist – noch – der physische Papierbuchungsbeleg als Grundlage und Nachweis für die Richtigkeit der Aufzeichnung assoziiert wird. Mit der Einführung der elektronischen Rechnung oder »E-Rechnung« an der Technischen Universität Hamburg (TUHH) wird ein wichtiger Meilenstein in der Digitalisierung von Verwaltungsprozessen verwirklicht. Mit der Einführung der E-Rechnung ist die Digitalisierung des Rechnungswesens keineswegs abgeschlossen, sondern ein weiteres Element in einem dynamischen Prozess. So ist stets aufs Neue auszuloten, wie interne und externe Einflüsse auf die Weiterentwicklung der Digitalisierung des Rechnungswesens einwirken, welche Konsequenzen sich daraus ergeben und wie damit umzugehen ist. Ein wichtiges Instrument zum erfolgreichen Gelingen ist die kommunikative Begleitung des Prozesses. So ist es nicht sonderlich überraschend, dass viele Fragen nach dem »Wie?«, »Wer?«, »Wo?«, »Was?« und »Warum?« formuliert wurden und werden. In dem Beitrag sollen erste Antworten auf diese Fragen in Bezug auf die TUHH gegeben werden.
title: Regelung eines Compound-Split-Antriebsstrangs mit aktiver Schwingungsdämpfung
Creators: name: Pommer, Benjamin
Publisher: name: TU Wien
Year: 2023
Subjects: subject: Fuzzy modellprädiktive Regelung
subject: Compound Split

description: Im Rahmen des Forschungsprojektes VARI-SPEED zu Drehflüglern mit variabler Rotordrehzahl ergab sich die Notwendigkeit ein ausgereiftes Regelungskonzept zu entwickeln, das sich vor allem durch Robustheit auszeichnet. Die Grundlage einer solchen Regelung ist eine fundierte Modellbildung, bei der die wesentlichen physikalischen Eigenschaftenin die Systembeschreibung fließen ohne zu sehr in Konflikt mit den Validierungsdaten zu kommen.Die Modellierung und Regelung eines Helikopters, im Speziellen eines UH-60, führt einen vor die Herausforderung eines höhergradig nicht-linearen Systems, dessen Systemdynamiken sich mit einer Menge an Parametern ändert. Daneben sind von der Natur oder konkret von den Besonderheiten des technischen Systems gestellte Randbedingungen beim Reglerentwurf zu beachten.Unter Einhaltung des Ähnlichkeitsprinzips im Rahmen der Modellbildung wurde ein Hybridgetriebe für Kraftfahrzeuge gewählt, das als vereinfachte Basis für den Reglerentwurf seinen Dienst erbracht hat. Als Reglerungsalgorithmus überzeugte der Fuzzy-MPC als geeigneter Kandidat und erzielte zufriedenstellende Ergebnisse für die vorliegende Aufgabenstellung.
description: Within the framework of the VARI-SPEED research project on rotorcraft with variable rotor speed, the necessity arose to develop a technically mature control concept that is characterised above all by robustness. The basis of such a control system is a well-founded modelling, in which the essential physical properties flow into the system description without coming too much into conflict with the validation data. The modelling and control of a helicopter, in particular a UH-60, leads one to the challenge of a highly non-linear system whose system dynamics change with a set of parameters. In addition, boundary conditions imposed by nature or specifically by the peculiarities of the technical system must be taken into account when designing the controller. In compliance with the principle of similarity in the context of modelling, a hybrid transmission for motor vehicles was chosen, which served as a simplified basis for the controller design. As a control algorithm, the fuzzy MPC is convinced as a suitable candidate and achieved satisfactory results for the given task.
title: Fracture detection with artificial intelligence: improved accuracy with region of interest focusing
Creators: name: Thurston, Mark
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Trauma
subject: Safety
subject: Computer Applications-Detection, diagnosis
subject: CAD
subject: Digital radiography
subject: Musculoskeletal bone
subject: eHealth
subject: Computer applications

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Convolutional neural networks (CNN) are amachine learning tool particularly suited to the analysis of visual imaging. They are inspired by the architecture of the human brain, in particular, the visual cortex. They use layers of increasing...
Congruences of concave composition functions
Creators: name: Monks, Keenan
name: Ye, Lynnelle
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11P83

description: Concave compositions are ordered partitions whose parts are decreasing towards a central part. We study the distribution modulo $a$ of the number of concave compositions. Let $c(n)$ be the number of concave compositions of $n$ having even length. It is easy to see that $c(n)$ is even for all $n\geq1$. Refining this fact, we prove that $$\#\{n2$ and at least two distinct values of $r\in\{0,1,\dotsc,a-1\}$, $$\#\{n \frac{\log_2\log_3 X}{a}.$$ We obtain similar results for concave compositions of odd length.
description: 7 pages; preprint of article published in INTEGERS
Field theoretic description of electromagnetic boundaries: The Casimir effect between dissimilar mirrors from external potentials
Creators: name: Barone, F. E.
name: Barone, F. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a previous work we formulated a model of semitransparent dielectric surfaces, coupled to the electromagnetic field by means of an effective potential. Here we consider a setup with two dissimilar mirrors, and compute exactly the correction undergone by the photon propagator due to the presence of both plates. It turns out that this new propagator is continuous all over the space and, in the appropriate limit, coincides with the one used to describe the Casimir effect between perfect conductors. The amended Green function is then used to calculate the Casimir energy between the uniaxial dielectric surfaces described by the model, and a numerical analysis is carried out to highlight the peculiar behavior of the interaction between the mirrors.
description: 7 pages, 3 figures
title: Output feedback sliding mode control for time delay systems
Creators: name: Han, Xiaoran
Publisher: name: University of Kent
Year: 2022

description: This Thesis considers Sliding Mode Control (SMC) for linear systems subjected to uncertainties and delays using output feedback. Delay is a natural phenomenon in many practical systems, the effect of delay can be the potential cause -of performance deterioration or even instability. To achieve better control performance, SMC with output feedback is considered for its inherent robustness feature and practicality for implementation. In highlighting the main results, firstly a novel output feedback SMC design is presented which formulates the problem into Linear Matrix Inequalities (LMIs). The efficiency of the design is compared with the the existing literature in pole assignment. eigenstructure assignment and other LMI methods, which either require more constraints on system structures or are computationally less tractable. For systems with timevarying Slate delay, the method is extended to incorporate the delay effect in the controUer synthesis. Both sliding surface and controller design are formulated as LMI problems. For systems with input/output delays and disturbances. the robustness of SMC is degraded with arbitrarily small delay appearing in the high frequency switching component of the controller. To solve the problem singular perturbation method is used to achieve bounded performance which is proportional to the magnitudes of delay, disturbance and switching gain. The applied research has produced two practical implementation studies. Firstly it relates to the pointing control of an autonomous vehicle subjected to external disturbances and friction resulting from the motion of the vehicle crossing rough terrain. The second implementation concerns the attitude control of a flexible spacecraft with respect to roil, pitch and yaw attitude angles.