cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Abiotic and biotic factors creating variation among bromeliad communities
Creators: name: MacDonald, Arthur Andrew Meahan
Publisher: name: University of British Columbia
Year: 2016

description: Many ecological communities show variation from place to place; understanding the causes of this variation is the goal of community ecology. Differences in community composition will be the result of both stochastic and deterministic processes. However, it is difficult to know to what degree deterministic processes will shape community composition. In this thesis I combined observational and experimental approaches to quantify deterministic processes within a particular ecological community -- they phytotelmata of bromeliad plants. In my thesis I describe three studies at different scales of organization: 1) do organisms of different size respond equally to changes in their environment 2) how do predators interact to influence prey survival 3) what mechanisms underly the response of similar species to the same environmental gradient, bromeliad size. In Chapter 1, I tested an hypothesis developed from previous observational data -- that smaller organisms respond less than larger ones to the same environmental gradient -- different bromeliad species that occur under different forest canopies. After removing variation caused by dispersal, I found that environmental variation explained little variation for bacteria, more for zooplankton and most of all for macroinvertebrates. In my second chapter, I examined ecological determinism on a smaller scale -- within a single trophic level (macroinvertebrate predators). I found that predators may interfere with each other, reducing predation rates and increasing prey survival. In Chapter 3, I examine macroinvertebrate responses to bromeliad volume. I use both null models and a field experiment to show that for at least one such pair, a difference in abiotic tolerances may be the plausible mechanism. Together these results illustrate when, and to what degree, bromeliad communities respond to deterministic factors. All three chapters first demonstrate a pattern, testing it against a suitable null distribution, before attempting to quantify possible mechanisms with a field experiment. This combination of observation and experiment is an approach which can contribute to our understanding of how ecological systems work.
Patchy Solution of a Francis-Byrnes-Isidori Partial Differential Equation
Creators: name: Aguilar, Cesar O.
name: Krener, Arthur J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 93C10, 34C45

description: The solution to the nonlinear output regulation problem requires one to solve a first order PDE, known as the Francis-Byrnes-Isidori (FBI) equations. In this paper we propose a method to compute approximate solutions to the FBI equations when the zero dynamics of the plant are hyperbolic and the exosystem is two-dimensional. With our method we are able to produce approximations that converge uniformly to the true solution. Our method relies on the periodic nature of two-dimensional analytic center manifolds.
description: 21 pages, 12 figures
Adsorption, clustering and reaction of hydrogen atoms on graphene
Creators: name: CASOLO, SIMONE
Publisher: name: Universit� degli Studi di Milano
Year: 2009

description: Adsorption, Clustering and Reaction of Hydrogen atoms on Graphene - Recent years have witnessed an ever growing interest in carbon-based materials. Among them, those formed by sp^2 C atoms comprise graphite, carbon nanotubes, polycyclic aromatic hydrocarbons (PAHs), and recently graphene: the one-atom thick layer of graphite. In this context, the adsorption of atoms from the gas phase on graphene can be used to tailor their electronic and magnetic properties, as already suggested for defects, with the advantage of being much easier to realize than, e.g., vacancies. We show how hydrogen atoms chemisorption induces a magnetic moment on the substrate and influences both thermodinamically and kinetically further atoms adsorptions, up to clusters formation. From the dynamical point of view many calculations have been done on the hydrogen recombination reaction on graphene and graphitic surfaces, in particular for the H2 formation via the Eley-Rideal mechanism, that involves chemisorbed species. Our study show the presence of large quantum effect in this process such as quantum reflection and product quantization signatures.
Neutral pseudoscalar meson decays: pi0, eta -> gamma gamma in SU(3) limit
Creators: name: Bijnens, Johan
name: Kampf, Karol
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Present and planned experiments motivate new theoretical study of properties of light unflavoured pseudoscalar meson decays. An overview including details on two-loop calculation in SU(3) limit is given.
description: 4 pages, presented at QCD10, June 28 - July 3 2010, Montpellier, France
title: La conception de systèmes efficaces de gestion de la qualité dans les établissements d‘enseignement supérieur | Module 1
Creators: name: Niedermeier, Frank
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2017
Subjects: concept de la qualité
assurance qualité
gestion de la qualité
système de gestion de la qualité
modèles de la qualité
instruments de la qualité
outils de la qualité
terminologie
structures de la gestion de la qualité
rôles de la gestion de la qualité
assurance qualité externe
assurance qualité interne
AQE
AQI
enseignement supérieur

description: Ce livre introduit concepts de qualité, définitions de l'assurance et du développement de la qualité et ces principaux outils et instruments. Il discute la question pourquoi la gestion de la qualité est un concept important pour les établissements d'enseignement supérieur et les possibilités d'établir un système de gestion de la qualité.
Anomalous Scattering of Low-lying Excitations in a Spin-1 Bose-Einstein Condensate
Creators: name: Watabe, Shohei
name: Kato, Yusuke
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present the simplest theory of perfect tunneling of an excitation in a Bose-Einstein condensate (BEC) through an impurity potential with an arbitrary shape in the low-momentum limit. That is for the transverse spin wave in the ferromagnetic phase of a spin-1 BEC. This mode obeys a Schrödinger-type equation; yet, effects of the potential on its transmission coefficient $T$ and on its scattering cross section $sigma$ vanish in that limit. The order parameter determines $T$, and the momentum $p$-dependence of $sigma$ exhibits a Rayleigh scattering type ($sigma propto p^{4}$). These properties are common between two types of Nambu-Goldstone modes: this spin wave and the Bogoliubov mode.
description: 5 pages
Kallmann syndrome
Creators: name: Rego Costa, Francisco
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Genital / Reproductive system male
subject: Pelvis
subject: CT
subject: Diagnostic procedure
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 50 years
description: Clinical History: A 50-years-old male farmer came to the emergency department complaining of lower abdominal pain and abdominal distension since two months. He had worsening of symptoms in the previous week. He had a medical history of delayed puberty onset. Final Diagnosis: Metastatic testicular seminoma in a patient with Kallmann syndrome.
TeRRItoria D2.2 Map of the Territorial Milieux
Creators: name: Kozarev, Ventseslav
name: Damianova, Zoya
Publisher: name: Zenodo
Year: 2019
Subjects: R&I ecosystem, Territorial milieux, RRI, map of R&I ecosystem

description: This document represents TeRRItoria Project Deliverable 2.2 (D2.2) Map of the Territorial Milieux, and provides a summary of the findings from the in-depth mapping of the five participating territories from the perspective of responsible research and innovation. D2.2 further includes the complete mapping reports of the five territories. The document is authored by partners ARC Fund, leader for work package 2, with partners contributing through the elaboration of a mapping report on the territorial milieu of their respective territory.
 The current report features eight major chapters. The introductory chapter (Chapter 2) presents the theoretical framework that underlies the mapping process, and explains the significance of Work Package 2 within TeRRItoria’s work plan. Chapter 3 explains the methodology of the mapping process. Chapter 4 to Chapter 8 encompass the mapping reports of the participating territories. The final Chapter 9 presents a summary of the mapping results and concludes with key considerations for the transformative experiments.
Giant coercivity of dense nanostructured spark plasma sintered barium hexaferrite
Creators: name: Mazaleyrat, Frederic
name: Pasko, Alexander
name: Bartok, Andras
name: Lobue, Martino
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Due to the limited rare-earth elements resources, ferrite magnets need to be improved drastically. Ideally, for a true hard magnet, the coercive field should be larger than the saturation magnetization, which is not yet realized for ferrites. Thus, an alternative can be found in making very fine grain ferrite magnets, but it is usually impossible to get small grains and dense material together. In this paper, it is shown that the spark plasma sintering method is able to produce approximately 80% of dense material with crystallites smaller than 100 nm. The as-prepared bulk sintered anisotropic magnets exhibits coercive field of 0.5 T which is approximately 60% of the theoretical limit and only a few percentage below that of loose nanopowders. As a result, the magnets behave nearly ideal (-1.18 slope in the BH plane second quadrant) and the energy product reaches 8.8 kJ m-3, the highest value achieved in the isotropic ferrite magnet to our knowledge.
LE AGENZIE DELL'UNIONE EUROPEA
Creators: name: Alberti, Jacopo Francesco
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: The research covers all the different types of EU agencies, with a comprehensive approach to the agencification process. The first chapter deals with two fundamental models that have influenced EU agencies: the New Public Management and the International administrative Unions. The second chapter gives a definition of ?EU agency? and then sketchs a map of the agencies created so far, highlighting the similarities and the differences concerning the legal basis, the internal structure, the role of the executive director, the board of administration and the scientific commettees and finally the acts enacted by EU agencies. Then the analyses turns on targeting the judicial review of those acts, considering both the influnce of the Court of Justice (CJ) and that of the internal boards of appeal or the Commission as administrative judge. The impact of the European Ombudsman is evaluated as well. The fourth chapter deals with the limits of delegation of powers in the EU legal order; the basic idea is that delegation of powers to agencies at EU level needs to take into account the peculiar role of the Commission. In this context, the jurisprudence of the CJ is examinated and in particular a new reading of the ?Meroni doctrine? is given. The limits stemming from the Treaties, especially art. 290-291 TFEU, are taken into account too. Finally, the highly complicated external relations of EU agencies are described and framed, in order to deal with two issues: the legitimacy of those relations and the possible international legal personality of EU agencies.
DIAGNOSIS IN MEDICINE USING DEEP LEARNING ALGORITHMS.pdf
Creators: name: Sharma, Gunjan
Publisher: name: figshare
Year: 2020
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Image segmentation, identification and disease analysis has become very difficult, due to human made mistakes. With evolution of Deep learning techniques this automated process has become efficient in analyzing an object or image and identifying it, without mistakes, based on the learning from hundreds or thousands of images. Now a days deep learning has been used in variety aspects of medicine like MRI scanning, Skin cancer classification, Brain tumor detection etc., In this paper we will talk about what is deep learning, how it works, and how the opportunities involved with using deep learning in image analysis and classification has evolved
PET/CT imaging of the human bradykinin 1 receptor using radiolabeled peptides for cancer detection
Creators: name: Amouroux, Guillaume Paul Victor
Publisher: name: University of British Columbia
Year: 2016

description: Many compounds mimicking endogenous molecules have been used as a starting point to develop targeted diagnostic and therapeutic radiotracers. In particular, radiolabeled peptidomimetics, in association with positron emission tomography combined with computed tomography (PET/CT), are powerful tools to detect cancer with high sensitivity. Peptide-based radiotracers have the advantage of combining favorable pharmacokinetics that allow the use of short-lived isotopes, with a flexible modular design that offers a high versatility for functionalization, making them optimal for developing targeted imaging probes. The bradykinin receptors, which are powerful mediators of inflammation, have been shown to be highly expressed in many common cancers, notably breast and prostate cancers. The purpose of this project was to evaluate the human Bradykinin Receptor 1 (hB1R) as a potential target for cancer imaging and radionuclide therapy. Analogs of [des-Arg¹⁰] Kallidin (KD) were synthesized and labeled with ⁶⁸Ga or ¹⁸F. Following determination of their affinity for hB1R, selected tracers were evaluated in vitro and in vivo using hB1R expressing cells to select optimal radiotracers to imaging by positron emission tomography. The replacement of key amino acids at peptidase cleavage points by unnatural aminoacids improved the stability of the radiolabeled [des-Arg¹⁰]KD analogs in vitro and in vivo. Such peptides were used successfully for h1BR imaging by PET/CT in preclinical models. The use of hydrophilic and in particular cationic linker significantly improved tumour accumulation of various bradykinin analogues. Tracers combining the most favorable features gave high tumour to normal tissue contrast, by combining specific and high tumour uptake with low background and rapid clearance. The accumulation of agonist and antagonist radiotracers in tumours was also compared. In summary, we developed several promising bradykinin receptor ligands, as radiolabeled probes for cancer imaging.
Quantum Interference of Stored Coherent Spin-wave Excitations in a Two-channel Memory
Creators: name: Wang, Hai
name: Li, Shujing
name: Xu, Zhongxiao
name: Zhao, Xingbo
name: Zhang, Lijun
name: Li, Jiahua
name: Wu, Yuelong
name: Xie, Changde
name: Peng, Kunchi
name: Xiao, Min
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum memories are essential elements in long-distance quantum networks and quantum computation. Significant advances have been achieved in demonstrating relative long-lived single-channel memory at single-photon level in cold atomic media. However, the qubit memory corresponding to store two-channel spin-wave excitations (SWEs) still faces challenges, including the limitations resulting from Larmor procession, fluctuating ambient magnetic field, and manipulation/measurement of the relative phase between the two channels. Here, we demonstrate a two-channel memory scheme in an ideal tripod atomic system, in which the total readout signal exhibits either constructive or destructive interference when the two-channel SWEs are retrieved by two reading beams with a controllable relative phase. Experimental result indicates quantum coherence between the stored SWEs. Based on such phase-sensitive storage/retrieval scheme, measurements of the relative phase between the two SWEs and Rabi oscillation, as well as elimination of the collapse and revival of the readout signal, are experimentally demonstrated.
TeRRItoria D2.3 Map of the state of the art of R&I ecosystem in 5 territorial areas
Creators: name: Brandstetter-Kunc, Adam
Publisher: name: Zenodo
Year: 2019
Subjects: R&I ecosystem, Smart Specialization strategy, S3 platform, Map of S3

description: This document contains the results of the mapping process of the Research & Innovation ecosystems in the 5 territories where the transformative experiments of TeRRItoria project will be carried out. The results present the analyses of the state-of-the-art based on available resources (such as S3 online platform, Regional ecosystem scoreboard and European Cluster Collaboration Platform, various documents, etc.) for each experimental region. For each territory coherent picture of the current status of their structure, demographics and local R&I actors has been drawn. The current focus of research and innovation in the context of smart specializations for each of the territories is presented. The analyses pinpoint areas of importance in the scope of Responsible Research and Innovation (RRI). Furthermore, the main factors contributing to the strengths and weaknesses as well as emerging opportunities and threats (SWOT analysis) of the 5 R&I ecosystems and territories has been included. The performed analyses will be used to aid in the next phase of the project – starting with the design of the transformative experiments (WP4).
s-X-AIPI Aluminium Product Sustainability Data Model (PSDM)
Creators: name: Fernández Martínez, Andrea
Publisher: name: Zenodo
Year: 2025

description: Product Sustainability Data Model (PSDM) README

Overview

The Aluminium Product Sustainability Data Model (PSDM) tracks essential data about aluminum ingots, including product details, raw materials, production data, chemical analysis, and key performance indicators (KPIs) for business, technical, and environmental aspects.

Structure

The PSDM contains the following sections:

digital_product_passport: Metadata about the PSDM (ID, version, creation date, digital link).

product_information: Product details (code, name, format, and amount).

compliance: Standards compliance (e.g., EN AC-XXX).

batch_information: Batch ID and production date.

order_information: Order number and customer details.

raw_materials: Raw materials used (name, quantity, furnace, silo).

production_data: Production metrics (energy consumption, production output, costs).

analysis: Chemical composition of the product (alloy type, elemental content).

KPIs: Key performance indicators (business, technical, environmental).

Key KPIs

Business KPIs: Productivity, costs per kg of aluminum produced, costs of gas consumption per aluminium product.

Technical KPIs: Efficiency (kg Al produced vs. theoretical), flux material usage, gas consumption per material fed.

Environmental KPIs: Waste (salt slags), recycled content, total energy consumption, CO2 footprint.
Coulomb gauge QCD as a tool for the excited spectrum
Creators: name: Llanes-Estrada, Felipe J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A distinct feature of Coulomb gauge QCD is that it can be formulated in terms of physical, transverse gluons and quarks alone. The state-counting is then transparent, and the gauge is suited for studies of the excited spectrum. Leaving aside exotic spectroscopy, which has been the subject of other publications, in this note I call attention on two recent applications. One is that the running quark mass in the mid-infrared can be probed from excited baryons thanks to parity doubling, a consequence of insensitivity to chiral symmetry breaking. Fast quarks are asymptotically free and behave as massless, so hadrons containing fast quarks decouple from the condensate. Their (power-law) rate of decoupling reflects on the rate of decreasing parity splittings, which can be measured. The second is that, in analogy with the Franck-Condon principle of molecular physics, the velocity distribution of the heavy quarks inside a heavy hadron can be mapped out by the velocity distribution of its open-flavor decay products. This is exemplified by recent data from the Belle collaboration taken at the Upsilon(10860).
description: 4 pages, 3 figures, contribution to the proceedings of the workshop LightCone2010, Valencia, June 14th-18th
REALTA' DEL DIRITTO. LA CONTROVERSIA SULLA NATURA DEL DIRITTO NEL DIBATTITO TRA LEON PETRAZYCKI, CZESLAW ZNAMIEROWSKI E JERZY LANDE
Creators: name: MAKAREWICZ, MACIEJ
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: The thesis concerns the nature of the legal phenomenon based on the analysis of the controversy between polish philosophers: Leon Petrazycki, Czeslaw Znamierowski e Jerzy Lande. The controversy conserns two contraditory visions of the law: one substantial, that applies at the legal phenomenon the cateogory of 'res', and the second one that describes legal phenomena as 'illusions'. The thesis describes the dispute between the mentioned philosophers and applies at the character of the dispute categories of ontological, psycho-sociological, logical and metodological importance.
EXPRESSION AND INITIAL CHARACTERIZATION OF THE CELL FATE TRANSCRIPTION FACTOR PRDM1 IN ADULT NEURAL PROGENITORS AND GLIOBLASTOMA MULTIFORME
Creators: name: BIANCOTTO, CHIARA
Publisher: name: Universit� degli Studi di Milano
Year: 2013

description: PRDM1 is a master transcriptional regulator in multiple cell lineages and it is required for the development of many species. However the reason and the mechanisms underlying its pleiotropic functions remain largely unknown as the full array of tissues and target genes controlled by PRDM1. Our results indicate a completely unexplored field where to study PRDM1 regulatory network that is the brain and its most aggressive cancer, the Glioblastoma multiforme (GBM). We identified that PRDM1 is expressed in adult neural progenitor cells and that it correlates with the maintenance of cellular multipotency possibly by interfering with pro-differentiation pathways (e.g. HIF1? signaling). We generated the first genome wide profile of PRDM1 binding in mammalian cells, expanding the pool of known direct target genes and providing a new solid ground for mechanistical studies that suggest a role for PRDM1 in stable and heritable gene silencing during differentiation.
Finally we found that PRDM1 expression associates with a specific subtype of human GBM called mesenchymal and that it is highly expressed in GBM cancer derived stem cells. Consequently we are now exploiting the functional relevance of PRDM1 in a spontaneous mouse model of GBM related to the human pathology.
Taken together our data add further to the already established role of PRDM1 as a cell fate regulator identifying that PRDM1 is involved in normal and aberrant mammalian neurogenesis. We also provided a consistent dataset to functionally and mechanistically characterize PRDM1 regulatory network.
Particle segregation and mixing in a dry free surface granular flow
Creators: name: D'Agostino, Silvia
Publisher: name: Universit� degli studi di Trento
Year: 2021

description: Geophysical massive flows as snow avalanches and debris flows are characterized by a wide grain size distribution. The interactions between particles among the granulometric classes are a consequent of a such large distribution. However, most of the studies on the geophysical massive flows assume the simplifying hypothesis of a constant granulometry. The aim of this work is studying the coexistence of two granulometric classes in statistically stationary and homogeneous conditions and investigating the physical processes responsible for the particles transfer. Experimental investigations using two different grain size classes were conducted to reproduce the two-phases mixture. The granular material was recirculated in a close system and the experiments were carried out in a laboratory flume having a loose twosize granular bed. A proper optical technique was innovatively improved to obtain the average and instantaneous values of the velocity and concentration from the side-walls. Through these values, the average particle profiles of velocity, concentration and granular temperature of the two solid fractions were computed. Moreover, the instantaneous values provide the average profiles of the second order correlation of the variables, such as the component of the granular temperature and the fluctuating components of the velocity and the concentration. The average distribution profiles in time of velocity and concentration prove the statistically stationary and homogeneous condition in a stretch sufficiently long of the running flow. Moreover, two types of regimes were identified: in case of low and intermediate discharges, the frictional regime nearly prevails at the free surface; for high discharges there is a coexistence across the flow depth of two regimes, the frictional regime in the intermediate flow-depth region and the collisional regime in the free surface. The existence of a vertical velocity component of both phases brings to hypothesize the presence of secondary circulations in the flow.
G-zips and Ekedahl-Oort strata for Hodge type Shimura varieties
Creators: name: ZHANG, CHAO
Publisher: name: Universit� degli Studi di Milano
Year: 2013

description: let (G, X ) be a Shimura datum of Hodge type, and Ebe its reflex field. Let p > 2 be a prime such that (G, X ) has good reduction. Let v be a place of E over p . Let Kp ? G(Qp) be a hyperspecial subgroup, and K p ? G(Ap ) be a compact open subgroup which is small enough. Let K = KpK p. By works of Deligne, we know that the smooth complex variety ShK (G, X )(C) := G(Q)\(X � G(Af )/K ) has a canonical model ShK (G, X ) over E. By recent works of Vasiu and Kisin, the E-variety has an integral canonical model SK (G, X ) over OE,v . The scheme SK (G, X ) is smooth over OE,v and uniquely determined by a certain extension property. Let kv = OE,v /(v) and S0 be the special fiber of SK (G, X ). The goal of this paper is to develop a theory of Ekedahl-Oort stratification for S0, generalizing known theory for PEL Shimura varieties developed by Oort, Moonen, Wedhorn, Viehmann... Thanks to works of Pink, Wedhorn and Ziegler on G -zips, we have the definition and technical tools for such a theory. Fixing a symplectic embedding, our first main result is the construction of a G-zip over S0 . This induces a morphism ? : S0 ? G ? Zip� , where G ? Zip� is the stack of G-zips of type � constructed by Pink, Wedhorn and Ziegler. Fibers of ? are defined to
be Ekedahl-Oort strata. Our second main result is that ? is smooth. One can then transfer knowledge about geometry of G ? Zip� to results about Ekedahl-Oort strata. In particular,
we have a dimension formula for each non-empty stratum, and we know which strata lie in the closure of a given stratum.
The complete relativistic kinetic model of violation of symmetry in isotopic expanding plasma and production of baryons in hot Universe. I. Exact model
Creators: name: Ignatyev, Yu. G.
name: Alsmadi, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 82B40, 83C55, 85A30, 70E55, 70F45, 70S05

description: The complete model of production of baryons in expanding primordial symmetrical hot Universe is constructed in terms of general relativistic kinetic theory
description: 12 pages
title: Der Interpretationsaufsatz
title: Eine Geschichte von Fall und Aufstieg?
titleType: Subtitle
Creators: name: Rödel, Michael
Publisher: name: V & R Unipress
Year: 2020

description: Der Beitrag klärt die Position des schulischen Interpretationsaufsatzes an der Schnittstelle von Literatur- und Sprach- bzw. Schreibdidaktik. Er erörtert, wie thesengestütztes Interpretieren im schriftlichen Text am Gegenstand der Literatur zum Kompetenzerwerb im Argumentieren und Schreiben beiträgt.
BLACK HOLE DYNAMICS IN GENUINE AND FAKE GAUGED SUPERGRAVITY
Creators: name: CHIMENTO, SAMUELE
Publisher: name: Universit� degli Studi di Milano
Year: 2015

description: The goal of this thesis is to obtain and study new black hole solutions, both with and without supersymmetry, with a particular focus on multi-centered black holes in a cosmological background.
After a review of matter-coupled N=2 gauged supergravity in four dimensions and of the classification of its supersymmetric solutions, a new supersymmetric black hole solution is obtained, which is the first with nontrivial running hyperscalars.
Fake supergravity is a framework that allows to apply the methods used to classify supersymmetric solutions of supergravity also to theories without supersymmetry. A classification of fake supersymmetric solutions of a theory related to N=2, d=4 gauged supergravity is reviewed and used to construct dynamical solutions representing multiple black holes in a Friedmann-Lema�tre-Robertson-Walker background. The physical properties of the single-centered case are then studied in some detail. More complicated solutions with rotation and NUT-charge, or with curved spatial slices, are obtained for a less general class of theories.
Finally a recipe to obtain multi-centered black holes in an arbitrary FLRW universe and in arbitrary dimension is presented. These spacetimes are a multi-centered generalization of the charged McVittie black hole and are sourced by a U(1) gauge field and by a charged perfect fluid. As a particular subcase, these solutions describe an arbitrary number of black holes in a background that is locally anti-de Sitter space in cosmological coordinates. Some physical properties of the single-centered asymptotically AdS black hole are studied, showing in particular that a generalized first law of black hole dynamics is satisfied.
Detection Rates for Surveys for Fast Transients with Next Generation Radio Arrays
Creators: name: Macquart, Jean-Pierre
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We relate the underlying properties of a population of fast radio-emitting transient events to its expected detection rate in a survey of finite sensitivity. The distribution of the distances of the detected events is determined in terms of the population luminosity distribution and survey parameters, for both extragalactic and Galactic populations. The detection rate as a function of Galactic position is examined to identify regions that optimize survey efficiency in a survey whose field of view is limited. The impact of temporal smearing caused by scattering in the Interstellar Medium has a large and direction-dependent bearing on the detection of impulsive signals, and we present a model for the effects of scattering on the detection rate. We show the detection rate scales as Omega S0^{-3/2 + delta}, where Omega is the field of view, and S0 is the minimum detectable flux density, and 0 < delta =< 3/2 for a survey of Galactic transients in which interstellar scattering or the finite volume of the Galaxy is important. We derive formal conditions on the optimal survey strategy to adopt under different circumstances for fast transients surveys on next generation large-element, widefield arrays, such as ASKAP, LOFAR, the MWA and the SKA, and show how interstellar scattering and the finite spatial extent of a Galactic population modify the choice of optimal strategy.
description: published in ApJ
THE USE OF IMAGE LABELLING TO IDENTIFY PIG BEHAVIOURS FOR THE DEVELOPMENT OF A REAL-TIME MONITORING AND CONTROL TOOL
Creators: name: ISMAYILOVA, GUNEL
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: The behaviour of animals is the most informative indicator of the farm status, reflecting animal responses to the change of their welfare, health or surrounding environment. Complex and continuously changing animal responses could be monitored through automated and real time measurements offered by PLF. The most crucial component of an effective PLF system is a precise real-time algorithm able to detect, quantify or even predict the target behaviour, considering that animals are individually different in their responses. During the process of the development of such an algorithm the input of the expertise in animal ethology and biology is indispensable. Understanding of biological mechanisms is a key element in comprehension of the message given by animal behaviour.
One of the most important contributions of the specialist with biological background in algorithm development is labelling.This thesis was particularly dedicated to the labelling and its importance in the process of the development of successful PLF system.
The objective of this thesis was application of image labelling technique to contribute to the development of an automatic PLF systems to monitor behaviours of pigs.
Frequency locking of modulated waves
Creators: name: Recke, Lutz
name: Samoilenko, Anatoly
name: Teplinsky, Alexey
name: Tkachenko, Viktor
name: Yanchuk, Serhiy
Publisher: name: arXiv
Year: 2010
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34C30, 34C14, 34C15, 34C29, 34C60. 34D35, 34D06

description: We consider the behavior of a modulated wave solution to an $\mathbb{S}^1$-equivariant autonomous system of differential equations under an external forcing of modulated wave type. The modulation frequency of the forcing is assumed to be close to the modulation frequency of the modulated wave solution, while the wave frequency of the forcing is supposed to be far from that of the modulated wave solution. We describe the domain in the three-dimensional control parameter space (of frequencies and amplitude of the forcing) where stable locking of the modulation frequencies of the forcing and the modulated wave solution occurs. Our system is a simplest case scenario for the behavior of self-pulsating lasers under the influence of external periodically modulated optical signals.
Forward modeling and inversion of viscous remanent magnetization responses in the time domain
Creators: name: Cowan, Devin Christopher
Publisher: name: University of British Columbia
Year: 2016

description: In this thesis, I develop forward modeling and inversion methods for better characterizing viscous remanent magnetization (VRM) responses in the time-domain. Despite advances since the 1980s, aspects of modeling the VRM response and its impact on time-domain electromagnetic sensors remain elusive. Using Néel relaxation models, I parameterize the off-time viscous remanent magnetization in terms of an amalgamated magnetic property, which I show can be directly obtained using dual-frequency susceptibility measurements. For a half-space model, I derive empirical expressions for characterizing the relationship between the survey geometry and the cartesian components of the VRM response. Final expressions are verified with a 1D forward modeling code and used to determine the cross-over time at which the transient response within a large circular loop becomes dominated by the VRM signal. In order to predict the VRM responses from 3D geological structures, I develop a linear forward modeling code. This is accomplished by discretizing the Earth into a set of cells and implementing the parameterization of the off-time viscous remanent magnetization. Convergence of the forward model as a function of cell size is tested and the code is validated against a 1D code. Lastly, I develop an inversion approach for recovering the distribution of magnetically viscous materials from a set of field observations. A multitude of survey geometries are used to verify that our inversion is robust. A workflow is then presented for removing the VRM response from a set of survey data.
Diverging equilibration times in long-range quantum spin models
Creators: name: Kastner, Michael
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The approach to equilibrium is studied for long-range quantum Ising models where the interaction strength decays like r^{-α} at large distances r with an exponent $α$ not exceeding the lattice dimension. For a large class of observables and initial states, the time evolution of expectation values can be calculated. We prove analytically that, at a given instant of time t and for sufficiently large system size N, the expectation value of some observable (t) will practically be unchanged from its initial value (0). This finding implies that, for large enough N, equilibration effectively occurs on a time scale beyond the experimentally accessible one and will not be observed in practice.
description: 4+ pages, 1 figure
APPLICATION OF OZONE IN FOOD INDUSTRIES
Creators: name: PIRANI, SILVIA MARIA GILDA
Publisher: name: Universit� degli Studi di Milano
Year: 2011

description: Ozone (O3) is a strong antimicrobial agent with numerous potential applications in the food industry. High reactivity, penetrability and spontaneous decomposition to a nontoxic product (O2) make ozone a viable disinfectant for ensuring the microbiological safety of food products. Ozone has been used for decades in many countries and recently, the generally recognized as safe (GRAS) status of this gas has been reaffirmed in the United States. Ozone, in the gaseous or aqueous phases, is effective against the majority of microorganisms tested by numerous research groups. Relatively low concentrations of ozone and short contact time are sufficient to inactivate bacteria, molds, yeasts, parasites and viruses. Ozone applications in the food industry are mostly related to decontamination of environments and water treatment. Moreover, ozone has been used with success to inactivate contaminant microflora on meat, poultry, eggs, fish, fruits, vegetables and dry foods. The gas also is useful in detoxification and elimination of mycotoxins and pesticide residues from some agricultural products. Excessive use of ozone, however, may cause oxidation of some ingredients on food surface.
The aim of this work was to investigate the real potentiality of gaseous ozone in food industries. Ozone was tested:
- as a disinfectant in meat industry;
- as an alternative method for mites control on meat stored products;
- to reduce extraneous molds on the surface of meat products.
It was also conducted a preliminary investigation on the possible surface oxidation of stored products treated with low concentration of ozone.
The present study shows that gaseous ozone can effectively reduce spoilage microorganisms (Ps. fluorescens), fecal contaminants (E. coli) and food-borne pathogens (L. monocytogenes, B. cereus, S. aureus). It can be used for the disinfection of processing equipment and environment in food industries. Additionally, gaseous ozone might be effective in controlling mites or extraneous molds on meat stored products. Preliminary study show that low ozone treatments of meat stored products did not effect surface oxidation. The studies have shown that ozone can be used with good results both for the sanitation of the environment both for prevention and decontamination of stored product surface. Many people are critical of the use of ozone as it is an irritating substance; it can be felt at low concentrations and can even be poisonous at higher concentrations. Despite such reservations, it must be said that when used under controlled conditions, it is an effective and totally safe disinfectant.
Prevalence and quantification of pleural effusions and incidence of thoracentesis in patients admitted to the ICU: An observational, repeated cross-sectional study
Creators: name: Fjæreide, Karen Winthergård
name: Petersen, Per Lund
name: Mahdi, Angela
name: Nielsen, Frederik Mølgaard
name: Crescioli, Elena
name: Rasmussen, Bodil Steen
name: Schjørring, Olav Lilleholt
Publisher: name: Zenodo
Year: 2021
Subjects: Pleural effusion
Thoracentesis
Intensive Care Units

description: Introduction Pleural effusions appear in patients in the intensive care unit (ICU) at varying rates and the prevalence is poorly documented. Pleural drainage will be performed in some patients with pleural effusions but due to scarce evidence the indication for pleural fluid drainage is not yet standardized. Objectives To quantify the prevalence of clinically relevant pleural effusions in the ICU (primary aim). Secondarily we will investigate the proportions of patients in which thoracentesis is performed as well as the spontaneous development of pleural effusions over time during ICU admittance, the proportion of patients developing clinically relevant effusion during ICU stay, the proportion of patients with any plural effusion, the maximal volume of effusions, the proportion of patients and cumulated patient-days where daily ultrasound examination could not be performed, and cumulated daily fluid balance. Methods This is a an observational, repeated cross-sectional quality control study in adult ICU patients. Bilateral bedside pleural ultrasonography will be performed daily on all adult patients admitted to the four ICUs at Aalborg University Hospital over a 14-day period, investigating the presence of clinically relevant pleural effusion. The collected data will be compared to data from the electronical patient journal in relation to potential underlying cause of effusion, respiratory condition, coagulation status, and drainage of pleural effusion, along with additional relevant parameters. The ultrasonographic assessment of the pleura will be performed with the patients in the supine position with a 15° elevation of the torso, and in accordance with the consensus document by European Society of Cardiology and European Association of Cardiovascular Imaging for Focus Cardiac Ultrasound and Lung Ultrasound. The simplified Balik formula will be used to quantify the volume of pleural effusion. A maximal separation between pleura parietalis and visceralis of > 20 mm, equal to a calculated effusion volume of > 400 ml, will be considered clinically relevant. All data will be presented descriptively. Proportions as numbers and percentages, continuous data as means with 95% confidence intervals or medians with interquartile ranges as appropriate. Supplemental graphs of development of pleural effusions by day in the ICU will be conducted. Dissemination Publication will be sought in a relevant peer reviewed journal.
Electron correlation in FeSe superconductor studied by bulk-sensitive photoemission spectroscopy
Creators: name: Yamasaki, A.
name: Matsui, Y.
name: Imada, S.
name: Takase, K.
name: Azuma, H.
name: Muro, T.
name: Kato, Y.
name: Higashiya, A.
name: Sekiyama, A.
name: Suga, S.
name: Yabashi, M.
name: Tamasaku, K.
name: Ishikawa, T.
name: Terashima, K.
name: Kobori, H.
name: Sugimura, A.
name: Umeyama, N.
name: Sato, H.
name: Hara, Y.
name: Miyakawa, N.
name: Ikeda, S. I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have investigated the electronic structures of recently discovered superconductor FeSe by soft-x-ray and hard-x-ray photoemission spectroscopy with high bulk sensitivity. The large Fe 3d spectral weight is located in the vicinity of the Fermi level (EF), which is demonstrated to be a coherent quasi-particle peak. Compared with the results of the band structure calculation with local-density approximation, Fe 3d band narrowing and the energy shift of the band toward EF are found, suggesting an importance of the electron correlation effect in FeSe. The self energy correction provides the larger mass enhancement value (Z^-1=3.6) than in Fe-As superconductors and enables us to separate a incoherent part from the spectrum. These features are quite consistent with the results of recent dynamical mean-field calculations, in which the incoherent part is attributed to the lower Hubbard band.
description: 8 pages, 5 figures, 1 talble
The complete relativistic kinetic model of violation of symmetry in isotopic expanding plasma and production of baryons in hot Universe. II. Numerical model: X-boson distribution function
Creators: name: Ignatyev, Yu. G.
name: Alsmadi, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 70E55, 70F45, 70S05, 82B40, 83C55, 85A30

description: In terms of proposed by authors general-relativistic kinetic model of baryon production in expanding primordially symmetrical hot Universe calculates distribution function of extra-massive bosons and concerned with it variables.
description: 6 pages, 13 figures
GOLD NANOCONJUGATES: PREPARATION, CHARACTERISATION AND BIOLOGICAL APPLICATIONS
Creators: name: AVVAKUMOVA, SVETLANA
Publisher: name: Universit� degli Studi di Milano
Year: 2013

description: This PhD thesis is dedicated to the preparation, characterisation and biological application of gold nanoconjugates. Gold nanoparticles are prepared by various modern preparation methods, and subsequently characterised by spectroscopic (UV-vis, ATR-FTIR, NMR), microscopic (TEM) techniques. The stability of the conjugates is evaluated both by using Zeta-potential studies and UV-vis. The nanoparticles are used in cellular uptake experiments using human glioblastoma cancer cells, and are found to possess a low cytotoxicity. The nanoparticles are found taken up by the cells and distributed in different cellular compartments.
Perfect Andreev Reflection of Helical Edge Modes in InAs/GaSb Quantum Wells
Creators: name: Knez, Ivan
name: Du, Rui-Rui
name: Sullivan, Gerard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present an experimental study of inverted InAs/GaSb composite quantum wells in the hybridization regime and contacted by superconducting electrodes. A front gate is used to vary the Fermi level into the mini-gap, where recent experiments indicate existence of helical edge modes [arXiv:1105.0137]. Zero bias dips in differential resistance are observed across the mini-gap, suggesting transport dominated by Andreev reflection processes. Evolution of the mini-gap differential resistance with applied bias as well as measured mini-gap excess current of 150 nA are in good agreement with the prediction of perfect Andreev reflection of the helical edge modes, which is necessitated by the absence of back-scattering channels. The perfect Andreev reflection occurs in spite of a finite barrier at the interface and shows strong sensitivity to time-reversal breaking - hallmarks of the helical nature of quantum spin Hall edges.