cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
"Ruolo della SOD(SuperOxide Dismutasi)nella prevenzione dello stress ossidativo in gameti di differenti specie animali"
Creators: name: Rosapane, Isabella
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Abstract
Le metodiche sempre più innovative sviluppate nelle tecniche di riproduzione assistita (ART) applicate tanto in Medicina Umana quanto in Veterinaria sia per potenziare la selezione genetica delle specie domestiche che per la salvaguardia di quelle selvatiche minacciate impongono studi accurati ed indirizzati alla preparazione di mestrui per la conservazione del materiale genetico da utilizzare per le procedure di IVEP (In vitro embryo production) ed embryo-transfer. Il presente studio si è dipanato su tre linee di ricerche parallele nelle quali l'obiettivo principale è stato valutare la possibilità di refrigerare spermatozoi equini e canini e di stoccare ovaia feline mediante aggiunta di SOD ai comuni mestrui utilizzati all’uopo. Per rigore scientifico abbiamo effettuato confronti tra i gruppi campione addizionati con differenti concentrazioni di SOD e gruppi controllo. I risultati, registrati in differenti momenti di refrigerazione, hanno mostrato una chiara e statisticamente significativa differenza tra i gameti stoccati con SOD e quelli senza, che pur in presenza delle diversità di specie e considerando le ovvie variazioni di fisiologia tra oociti e spermatozoi, stimola ulteriori approfondimenti nell’allestimento di mezzi di coltura e conservazione gametica.
Decision tree modeling with relational views
Creators: name: Bentayeb, Fadila
name: Darmont, Jérôme
Publisher: name: arXiv
Year: 2007
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Data mining is a useful decision support technique that can be used to discover production rules in warehouses or corporate data. Data mining research has made much effort to apply various mining algorithms efficiently on large databases. However, a serious problem in their practical application is the long processing time of such algorithms. Nowadays, one of the key challenges is to integrate data mining methods within the framework of traditional database systems. Indeed, such implementations can take advantage of the efficiency provided by SQL engines. In this paper, we propose an integrating approach for decision trees within a classical database system. In other words, we try to discover knowledge from relational databases, in the form of production rules, via a procedure embedding SQL queries. The obtained decision tree is defined by successive, related relational views. Each view corresponds to a given population in the underlying decision tree. We selected the classical Induction Decision Tree (ID3) algorithm to build the decision tree. To prove that our implementation of ID3 works properly, we successfully compared the output of our procedure with the output of an existing and validated data mining software, SIPINA. Furthermore, since our approach is tuneable, it can be generalized to any other similar decision tree-based method.
The role of spin-lattice coupling for ultrafast magnetization changes in rare earth metals
Creators: name: Andres, Beatrice
name: Lee, Sang Eun
name: Weinelt, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By comparing femtosecond laser-pulse-induced spin dynamics in the surface state of the rare earth metals Gd and Tb we show that the spin polarization of the valence states in both materials decays with significantly different time constants of 15\,ps and 400\,fs, respectively. The distinct spin polarization dynamics in Gd and Tb are opposed by similar exchange splitting dynamics in the two materials. The different time scales observed in our experiment can be attributed to weak and strong $4f$ spin to lattice coupling in Gd and Tb suggesting an intimate coupling of spin polarization and 4f magnetic moment. While in Gd the lattice mainly acts as a heat sink, it contributes significantly to ultrafast demagnetization of Tb. This helps explain why all optical switching is observed in FeGd -- but rarely in FeTb-based compounds.
description: 6 pages, 4 figures, Supporting Material in file SM_GdvsTbPaper_v2.2.pdf
La valutazione di dimensioni dello stress, risorse adattive e disagio emozionale in coppie infertili
Creators: name: Ambrosino, Anna
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Il lavoro si inserisce nel filone degli studi sullo stress e coping e assume come riferimento teorico il modello transazionale dello stress di Lazarus (Lazarus, 1966, 1999; Lazarus e Folkman, 1984, 1987).
Inserendosi in questo orizzonte, la ricerca si propone di:
- esplorare le risorse adattive e il vissuto emotivo percepito dai membri delle coppie infertili che intraprendono un percorso di Procreazione Medicalmente Assistita (PMA), evidenziando l’effetto protettivo e moderatore rispetto al disagio emozionale svolto dalle strategie di coping individuale e dalle modalità di adattamento diadico;
- presentare la traduzione e un contributo all’adattamento italiano del Fertility Problem Inventory (FPI; Newton et al., 1999), un questionario self-report che valuta la percezioni delle fonti di stress connesse all’infertilità;
- presentare la traduzione e un contributo all’adattamento italiano del Cuestionario de Desajuste Emocional y Recursos Adaptativos en Infertilidad (DERA; Moreno-Rosset et al. 2008), un questionario self-report che valuta le risorse adattive e il disagio emotivo in infertilità;
- verificare la validità e l’efficacia del costrutto transazionale dello stress (Lazarus e Folkman, 1984, 1987) applicato allo studio dell’infertilità attraverso l’esplorazione della validità di una batteria tesa a valutare in entrambi i membri delle coppie infertili: a) percezione delle fonti di stress connesso all’infertilità; b) strategie di coping individuale; c) modalità di adattamento diadico; d) effetti dello stress in termini di vissuti depressivi e ansiosi.
The relative effects of intake and compression generated turbulence on I.C. engine combustion duration
Creators: name: Dohring, Klaus
Publisher: name: University of British Columbia
Year: 2010

description: A Rapid Intake and Compression Machine was designed and built, which makes it possible to simulate the piston motion of a reciprocating internal combustion engine at 1000 rpm. The compression stroke can be run by itself or following the intake stroke. Hot Wire Anemometer measurements were made at several locations inside the combustion chamber during intake and compression stroke and during the compression stroke by itself. Under similar operating conditions a combustible mixture was drawn in and ignited with varying ignition times after simulating the intake and compression stroke together and after simulating the compression stroke by itself. The mass fraction burned curves versus time were calculated from the pressure trace. The velocity measurements were compared to the combustion test results and the one stroke results were compared to the results found from the two stroke tests. It was found that the compression stroke run by itself generates very little flow motion in a flat disk combustion chamber without swirl, compared to the intake and compression stroke run together. The ignition delay period as well as the main combustion duration were considerably shorter after the intake and compression stroke compared to the compression stroke by itself. In the case of intake and compression stroke more advanced ignition timing reduced the ignition delay period as well as the main combustion duration. It is concluded that under the present engine conditions the compression stroke generates practically no turbulence. Thus the contribution of the compression stroke to the flow conditions around ignition time is limited to counteracting the decay of intake generated turbulence through compression effects.
Dare la vita alla vita. Il recupero sostenibile dell'esistente.
Creators: name: Foselli, Maria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: La ricerca è strutturata in due parti: riflessioni metodologiche ed esemplificazione e sono, ovviamente, l’una il contraltare dell’altra.
La prima, riflessioni metodologiche, è un’attenta analisi su quanto fino a questo momento è stato detto e scritto sulla progettazione sostenibile architettonica, urbana e ambientale, in generale, e su quella legata al recupero sostenibile in particolare. L’attenzione è posta anche al quadro normativo e legislativo internazionale e nazionale, con uno specifico riferimento agli strumenti di valutazione della sostenibilità utilizzati in Italia e principalmente adottati legislativamente nelle diverse Regioni italiane. Non manca una selezione di esempi internazionali opportunamente schedati. Agli esempi dei progetti selezionati segue e si affianca un’ulteriore selezione esemplificativa di uso delle energie rinnovabili collegato all’Arte: macchine, istallazioni, sculture di artisti contemporanei che connotano la propria produzione con componenti proprie delle tecnologie legate alla produzione delle energie rinnovabili.
In questa prima parte vengono, infine, introdotti i criteri di approccio al progetto di recupero sostenibile intesi come insieme di metodiche, pratiche e tecniche di analisi e rilievo finalizzate al reperimento dei dati conoscitivi che costituiscono nel loro insieme l’ascolto e la comprensione di quello che il luogo è in grado di raccontare: il suo racconto materiale del visibile, il suo racconto immateriale del visibile, il suo racconto dell’invisibile.
A questo punto di arrivo della ricerca si è pensato di verificarne i risultati applicandoli ad un reale caso di studio. L’idea si è potuta concretizzare grazie ad una convenzione di ricerca avente per oggetto il recupero sostenibile della Masseria Strigari, situata all’interno dell’area del Parco Regionale dei Campi Flegrei. La masseria è un edificio che ha veramente tanto da raccontare. Costruita sopra e in adiacenza di reperti archeologici romani, la villa di Giulio Cesare, e localizzata nell’attuale Parco Monumentale di Baia è, di fatto, un tassello parlante della terra del fuoco, una vera e propria banca del mito, patrimonio mondiale di storia, cultura, archeologia, paesaggio e natura.
Nella seconda parte della ricerca, esemplificazione, i presupposti metodologici, gli esempi di riferimento, le normative nazionali e regionali in vigore e l’idea dell’arte come acceleratore di qualificazione territoriale, trovano collocazione e applicazione in un compendio di soluzioni possibili per il recupero sostenibile tanto del Parco Monumentale di Baia, quanto della Masseria Strigari.
Un regesto bibliografico, delle fonti e dei riferimenti completa e articola ulteriormente il lavoro.
Consistent classical and quantum mixed dynamics
Creators: name: Hall, Michael J. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A recent proposal for mixed dynamics of classical and quantum ensembles is shown, in contrast to other proposals, to satisfy the minimal algebraic requirements proposed by Salcedo for any consistent formulation of such dynamics. Generalised Ehrenfest relations for the expectation values of classical and quantum observables are also obtained. It is further shown that additional desirable requirements, related to separability, may be satisfied under the assumption that only the configuration of the classical component is directly accessible to measurement, eg, via a classical pointer. Although the mixed dynamics is formulated in terms of ensembles on configuration space, thermodynamic mixtures of such ensembles may be defined which are equivalent to canonical phase space ensembles on the classical sector. Hence, the formulation appears to be both consistent and physically complete.
description: revtex, 9.2 pages; v2: Sec. III corrected & rewritten, to discuss `configuration separability' (which holds) vs `strong separability' (which doesn't); v3: Ehrenfest's theorem demonstrated - thus Peres-Terno benchmark for acceptable mixed dynamics is satisfied, to appear in PRA
Infrared study of the southern Galactic star forming regions associated with IRAS 10049-5657 and IRAS 10031-5632
Creators: name: Vig, S.
name: Ghosh, S. K.
name: Ojha, D. K.
name: Verma, R. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The physical conditions of the interstellar medium and stellar components in the regions of the southern Galactic star forming complexes associated with IRAS 10049-5657 and IRAS 10031-5632 have been investigated. These regions have been mapped simultaneously in two far infrared bands lambda_eff ~ 150 & 210 micron, with ~ 1' angular resolution using the TIFR 1-m balloon borne telescope. Spatial distribution of the temperature of cool dust and optical depth at 200 micron have been obtained. Using the 2MASS sources, the stellar populations of the embedded young clusters have been studied. A rich cluster of OB stars in the IRAS 10049-5657 region has been found with a cluster radius ~ 2 pc. The source in the cluster closest to the IRAS peak, lies above the ZAMS curve of spectral type O5 in the colour-magnitude diagram. Unlike IRAS 10049-5657, a small cluster comprising of a few deeply embedded sources is seen at the location of IRAS 10031-5632. Self consistent radiative transfer modelling aimed at extracting important physical and geometrical details of the two IRAS sources show that the best fit models are in good agreement with the observed spectral energy distributions. The geometric details of the associated cloud and optical depths (at 100 micron) have been estimated. A uniform density distribution of dust and gas is implied for both the sources. In addition, the infrared ionic fine-structure line emission from gas has been modelled for both these regions and compared with data from IRAS-Low Resolution Spectrometer. For IRAS 10049-5657, the observed and modelled luminosities for most lines agree to within a factor of four while for IRAS 10031-5632, we find a discrepancy of a factor of 100.
description: Accepted by The Astronomical Journal; 40 pages, 7 tables, 15 figures;
Hybrid metamaterial-LC based structures with large tunability range from the microwave to  the terahertz region
Creators: name: Chikhi, Nassim
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2012

description: This work aimed to exploit a new class of artificial materials exhibiting unconventional properties, to build new devices for a wild range of applications, starting from the microwave region up to the terahertz regime. We focused on the design and fabrication of metamaterials with unit cells based on split ring resonators SRRs and other type of resonators for the development of tunable negative refractive index metamaterials. The basic idea is to exploit the nematic liquid crystals properties, whose orientation can be magnetically or electrically controlled, to achieve the dynamic frequency modulation of the fabricated metamaterials, in order to build innovative devices for applications from the microwave up to the THz region, where the metal loss can be still maintained at a reasonable level.
Translocation of polymers with folded configurations across nanopores
Creators: name: Kotsev, Stanislav
name: Kolomeisky, Anatoly B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The transport of polymers with folded configurations across membrane pores is investigated theoretically by analyzing simple discrete stochastic models. The translocation dynamics is viewed as a sequence of two events: motion of the folded segment through the channel followed by the linear part of the polymer. The transition rates vary for the folded and linear segments because of different interactions between the polymer molecule and the pore. It is shown that the translocation time depends non-monotonously on the length of the folded segment for short polymers and weak external fields, while it becomes monotonous for long molecules and large fields. Also, there is a critical interaction between the polymers and the pore that separates two dynamic regimes. For stronger interactions the folded polymer moves slower, while for weaker interactions the linear chain translocation is the fastest. In addition, our calculations show that the folding does not change the translocation scaling properties of the polymer. These phenomena can be explained by the interplay between the translocation distances and transition rates for the folded and linear segments of the polymer. Theoretical results are applied for analysis of experimental translocations through solid-state nanopores.
description: submitted to J. Chem. Phys
ORCID Deutschland Konsortium - eine projektgetriebene Erfolgsgeschichte
Creators: name: Vierkant, Paul
Publisher: name: Zenodo
Year: 2019
Subjects: ORCID
Open Researcher and Contributor ID
ORCID DE
Consortium
Konsortium
Deutschland
Österreich

description: Initiiert durch das ORCID DE Projekt wurde das ORCID Deutschland Konsortium im Jahr 2016 gegründet. Gemeinsam mit der TIB Hannover als Konsortiumsführer wurde das Wachstum des Konsortiums stetig vorangetrieben. Flankiert durch verschiedene Maßnahmen des Projekts, wie die Veröffentlichung eines datenschutzrechtlichen Gutachtens, einem Positionspapier etc. sowie die engagierte Akquise-Arbeit der TIB, ist das ORCID Deutschland Konsortium über die letzten drei Jahre konstant gewachsen. Der Vortrag beleuchtet die Historie des ORCID Deutschland Konsortiums vor dem Hintergrund des von der Deutschen Forschungsgemeinschaft geförderten Projekts ORCID DE.
Harmonic chains and the thermal diode effect
Creators: name: Kalantar, Na'im
name: Agarwalla, Bijay Kumar
name: Segal, Dvira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Harmonic oscillator chains connecting two harmonic reservoirs at different constant temperatures cannot act as thermal diodes, irrespective of structural asymmetry. However, here we prove that perfectly harmonic junctions can rectify heat once the reservoirs (described by white Langevin noise) are placed under temperature gradients, which are asymmetric at the two sides, an effect that we term "temperature-gradient harmonic oscillator diodes". This nonlinear diode effect results from the additional constraint -- the imposed thermal gradient at the boundaries. We demonstrate the rectification behavior based on the exact analytical formulation of steady state heat transport in harmonic systems coupled to Langevin baths, which can describe quantum and classical transport, both regimes realizing the diode effect under the involved boundary conditions. Our study shows that asymmetric harmonic systems, such as room-temperature hydrocarbon molecules with varying side groups and end groups, or a linear lattice of trapped ions may rectify heat by going beyond simple boundary conditions.
Warehousing Web Data
Creators: name: Darmont, Jérôme
name: Boussaïd, Omar
name: Bentayeb, Fadila
Publisher: name: arXiv
Year: 2007
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: In a data warehousing process, mastering the data preparation phase allows substantial gains in terms of time and performance when performing multidimensional analysis or using data mining algorithms. Furthermore, a data warehouse can require external data. The web is a prevalent data source in this context. In this paper, we propose a modeling process for integrating diverse and heterogeneous (so-called multiform) data into a unified format. Furthermore, the very schema definition provides first-rate metadata in our data warehousing context. At the conceptual level, a complex object is represented in UML. Our logical model is an XML schema that can be described with a DTD or the XML-Schema language. Eventually, we have designed a Java prototype that transforms our multiform input data into XML documents representing our physical model. Then, the XML documents we obtain are mapped into a relational database we view as an ODS (Operational Data Storage), whose content will have to be re-modeled in a multidimensional way to allow its storage in a star schema-based warehouse and, later, its analysis.
Remarks on modules of the ortho-symplectic Lie superalgebras
Creators: name: Cheng, Shun-Jen
name: Wang, Weiqiang
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We examine in detail the Jacobi-Trudi characters over the ortho-symplectic Lie superalgebras spo(2|2m+1) and spo(2n|3). We furthermore relate them to Serganova's notion of Euler characters.
description: 15 pages, accepted for publication
La grande dimensione nell'edilizia residenziale pubblica dal 1956 al 1982. Riqualificare o demolire?
Creators: name: Magliulo, Nello Luca
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il lavoro di ricerca svolto si intitola “La grande dimensione nell’edilizia residenziale pubblica dal 1956 al 1982. Demolire o riqualificare?”. La ricerca in esame ha come obiettivo centrale la possibilità di definire una metodologia di intervento per i grandi complessi realizzati nel periodo storico ritagliato che va dalla realizzazione del quartiere Forte Ghezzi a Genova (1956) fino a quello di Taverna del Ferro a Napoli (1984). Passando attraverso un’analisi di tutti i complessi residenziali, corredata di documenti storici e articoli dell’epoca, si è cercato di definire le maggiori lacune architettoniche, urbane e sociali che hanno generato l’idea negativa di periferia. E’ presente inoltre uno studio approfondito delle proposte di riqualificazione sui casi studio formulate da enti pubblici, Università o attraverso concorsi di idee. Inoltre lo studio si dilungato anche sui alcuni casi di riqualificazione europei con particolare attenzione al territorio francese. Una parte del lavoro è dedicata ad un’analisi dei progetti italiani di nuova generazione in merito all’argomento del Social Housing al fine di comprendere le più attuali tendenze sul tema. La parte conclusiva propone un progetto di riqualificazione per il quartiere Taverna del Ferro a Napoli la cui proposta mette in campo tutti i dati dedotti dalla parte di analisi sopracitata e gli spunti progettuali concordati  con l’architetto Pietro Barucci, autore del progetto nel 1982 e di cui si riporta un’intervista realizzata dal dottorando.
title:  La dipendenza della crescita dalla redditività del capitale nella letteratura kaleckiana: una valutazione critica
Creators: name: Salvati, Luigi
name: Trezzini , Attilio
Publisher: name: RomaTrE-Press
Year: 2023

description: Kaleckian models can be considered as one of the most relevant sets of theoretical works which study growth as a demand-led phenomenon. In these models, the dependence of the pace of accumulation on some measure of the profitability of capital is assumed. This article identifies the theoretical underpinnings of this assumed dependence and traces its origins to the work of Kalecki and Joan Robinson. However, the analysis of the arguments, partially already present in the literature, leads to argue that this fundamental assumption of the Kalecki models is not sufficiently supported as its cruciality would require. Indeed, the theoretical underpinnings of this assumed dependence are vulnerable to a number of theoretical criticisms.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
Il counseling genetico. Prospettive etiche, bioetiche e sociali di un approccio integrato
Creators: name: Granieri, Enrica Rosa
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: «Il dato genetico è il dato che, indipendentemente dalla tipologia, riguarda la costituzione genotipica di un individuo, ovvero i caratteri genetici trasmissibili nell’ambito di un gruppo di individui legati da vincoli di parentela ». Nel presente lavoro, partendo dalle attuali potenzialità della ricerca genetica  e dalla riflessione intorno alla peculiarità della genetica predittiva, si è voluto riflettere in merito alle ricadute etiche, bioetiche e sociali relative alla diagnostica genetica, sia nell’ambito prettamente medico, sia nel più vasto contesto socio-istituzionale.
Quenched lattice calculation of the vector channel B --> D* l nu decay rate
Creators: name: de Divitiis, G. M.
name: Petronzio, R.
name: Tantalo, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We calculate, in the continuum limit of quenched lattice QCD, the form factor that enters the decay rate of the semileptonic decay B --> D* l nu. By using the step scaling method (SSM), previously introduced to handle two scale problems in lattice QCD, and by adopting flavor twisted boundary conditions we extract F(w) at finite momentum transfer and at the physical values of the heavy quark masses. Our results can be used in order to extract the CKM matrix element Vcb by the experimental decay rate without model dependent extrapolations. The value of Vcb agrees with the one obtained from the B --> D l nu channel and makes us confident that the quenched approximation well applies to these transitions.
description: 11 pages, 8 figures
title:  Indicazioni Geografiche tra sviluppo locale e internazionalizzazione
Creators: name: Vaquero-Piñeiro  ,  Cristina
Publisher: name: RomaTrE-Press
Year: 2023

description: Starting from recent studies on the socio-economic effects triggered by the Geographical Indications (GI) scheme, this article aims to highlight the main results obtained by presenting them in a concise and easy-to-read version, emphasizing the strengths of the GI system for local development and trade performance. Employing an empirical territorial analysis methodology, studies investigated the impact of GIs on (i) local development, by examining the population and employment growth rates across various sectors of the local economy, and (ii) the internationalization of regions, by considering exports and the attractiveness of foreign direct investments. The analyses conducted have unequivocally demonstrated that GIs constitute a pivotal driver of value creation and success for the regions involved. The GI system stands out among policy tools that, if well utilized, have significant potential not only for the competitiveness of the agri-food sector but also for the sustainable development of its territories.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
The design, simulation and fabrication of a gallium arsenide monolithic sample and hold circuit
Creators: name: Durtler, Willem G.
Publisher: name: University of British Columbia
Year: 2010

description: This thesis describes work done towards the development of a gallium arsenide monolithic sample-and-hold circuit. The literature relevant to high-speed electronic sampling is reviewed, and the different types of highspeed sampling circuits are discussed. The requirements of a sampling circuit for use in a distributed sampling amplifier are analyzed, and it is found that the most important requirement is a high input impedance. A circuit suitable for monolithic integration is designed and analyzed using the computer program mwSPICE. The different fabrication technologies for gallium arsenide integrated circuits are discussed, with emphasis on the self-aligned gate technologies, which can give reduced parasitic source and drain resistances. The processing steps for the refractory metal self-aligned gate technology developed for this thesis at the University of British Columbia are given in detail. DC measurement procedures for MESFETs and Schottky diodes are given and results are presented for self-aligned gate MESFETs fabricated at UBC. These results indicate that the refractory metal self-aligned gate process developed at UBC should be suitable for the fabrication of the monolithic sample-and-hold circuit.
AC susceptometry of 2D van der Waals magnets enabled by the coherent control of quantum sensors
Creators: name: Zhang, Xin-Yue
name: Wang, Yu-Xuan
name: Tartaglia, Thomas A.
name: Ding, Thomas
name: Gray, Mason J.
name: Burch, Kenneth S.
name: Tafti, Fazel
name: Zhou, Brian B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Precision magnetometry is fundamental to the development of novel magnetic materials and devices. Recently, the nitrogen-vacancy (NV) center in diamond has emerged as a promising probe for static magnetism in 2D van der Waals materials, capable of quantitative imaging with nanoscale spatial resolution. However, the dynamic character of magnetism, crucial for understanding the magnetic phase transition and achieving technological applications, has rarely been experimentally accessible in single 2D crystals. Here, we coherently control the NV center's spin precession to achieve ultra-sensitive, quantitative ac susceptometry of a 2D ferromagnet. Combining dc hysteresis with ac susceptibility measurements varying temperature, field, and frequency, we illuminate the formation, mobility, and consolidation of magnetic domain walls in few-layer CrBr3. We show that domain wall mobility is enhanced in ultrathin CrBr3, with minimal decrease for excitation frequencies exceeding hundreds of kilohertz, and is influenced by the domain morphology and local pinning of the flake. Our technique extends NV magnetometry to the multi-functional ac and dc magnetic characterization of wide-ranging spintronic materials at the nanoscale.
description: 11 pages, 5 figures
Search for the decay B+ -> K+ tau-/+ mu+/-
Creators: name: The BABAR Collaboration
name: al, B. Aubert et
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a search for the lepton flavor violating decay B+ --> K+ tau-/+ mu+/- using 383 million B Bbar events collected by the BABAR experiment. The branching fraction for this decay can be substantially enhanced in new physics models. The kinematics of the tau from the signal B decay are inferred from the K+, mu, and other B in the event, which is fully reconstructed in one of a variety of hadronic decay modes, allowing the signal B candidate to be fully reconstructed. We observe no excess of events over the expected background and set a limit of B(B+ --> K+ tau mu) < 7.7 x 10^-5 at 90% confidence level, where the branching fraction is for the sum of the K+ tau- mu+ and K+ tau+ mu- final states. We use this result to improve a model-independent bound on the energy scale of flavor-changing new physics.
description: 7 pages, 2 figures, version published in Physical Review Letters
MPEC 2023-Y87 : 2022 BB3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Where to place WindScanners and where to measure with them?
Creators: name: Vasiljevic, Nikola
name: Vignaroli, Andrea
name: Bechmann, Andreas
name: Wagner, Rozenn
Publisher: name: Zenodo
Year: 2019
Subjects: wind lidar
digital workflow
WindScanner
multi-lidars
digitalization

description: Multiple point measurements reduce the uncertainty of the spatial extrapolation of the wind climate from the measurement position to the considered turbine position and overall the AEP uncertainty. A WindScanner system consisting of two synchronized scanning lidar potentially represents a cost-effective solution for multi-point measurements especially in complex terrain. However, the system limitations (e.g., expected range) and limitations imposed by the site (e.g., orography) are detrimental to the installation of WindScanners and number and location of measurement positions. To simplify the process of finding suitable measurement positions and the associated installation locations of WindScanners we devised campaign planning workflow. The workflow consists of four phases. In the first phase, based on a preliminary wind farm layout, we generate optimize measurement positions using greedy algorithm and measurement representativeness radius. In the second phase, we generate several Geographical Information System (GIS) layers of information such as exclusion zone, line-of-sight (LOS) blockage, and lidar range maps. These GIS layers are then used in the third phase to find optimum positions of the WindScanners with respect to the measurement positions considering the WindScanner measurement uncertainty. In the fourth phase, we optimize and generate trajectory through the measurement positions by applying traveling salesman problem (TSP) on a set of measurement points. The above described workflow has been digitalize into so-called Campaign Planning Tool (CPT) currently provided as a Python library which allows users an effective way to plan measurement campaigns with WindScanners.
Hardware Efficient Joint Radar-Communications with Hybrid Precoding and RF Chain Optimization
Creators: name: Kaushik, Aryan
name: Masouros, Christos
name: Liu, Fan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we aim to achieve energy efficient design with minimum hardware requirement for hybrid precoding, which enables a large number of antennas with minimal number of RF chains, and sub-arrayed multiple-input multiple-output (MIMO) radar based joint radar-communication (JRC) systems. A dynamic active RF chain selection mechanism is implemented in the baseband processing and the energy efficiency (EE) maximization problem is solved using fractional programming to obtain the optimal number of RF chains at the current channel state. Subsequently hybrid precoders are computed employing a sub-arrayed MIMO structure for EE maximization with weighted formulation of the communication and radar metrics, and the solution is based on alternating minimization. The simulation results show that the proposed method with minimum hardware achieves the best EE while maintaining the rate performance, and an efficient trade-off between sensing and communication.
Science Requirements for EAGLE for the E-ELT
Creators: name: Evans, C. J.
name: Lehnert, M. D.
name: Cuby, J. -G.
name: Morris, S. L.
name: Swinbank, A. M.
name: Taylor, W. D.
name: Alexander, D. M.
name: Lorente, N. P. F.
name: Clenet, Y.
name: Paumard, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an overview of the EAGLE science case, which spans spatially-resolved spectroscopy of targets from five key science areas - ranging from studies of heavily-obscured Galactic star clusters, right out to the first galaxies at the highest redshifts. Here we summarise the requirements adopted for study and also evaluate the availability of natural guide stars in example fields, which will impact on the adaptive optics performance and architecture.
description: 12 pages, to be published in Proc SPIE 7014: Ground-based & Airborne Instrumentation for Astronomy II
MPEC 2023-Y88 : 2023 OE6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Effetto della rivascolarizzazione percutanea periferica sull’incidenza di eventi cardiovascolari nei pazienti diabetici affetti da Arteriopatia Obliterante degli Arti Inferiori
Creators: name: Sirico, Giusy
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Introduzione. L’Arteriopatia Ostruttiva degli Arti Inferiori (AOAI), una delle principali espressioni cliniche della patologia aterosclerotica, è una condizione molto frequente nei pazienti diabetici e si associa ad una ridotta capacità deambulatoria e ad un’alta incidenza di eventi ischemici cardiovascolari (CV). La rivascolarizzazione percutanea degli arti inferiori (PTA) migliora la qualità di vita e la distanza di marcia nei pazienti diabetici. Lo scopo del presente studio è dimostrare che la PTA possa migliorare anche la prognosi CV in questa categoria di pazienti ad alto rischio.
Metodi. 236 pazienti diabetici affetti da AOAI allo stadio II di Fontaine furono arruolati nello studio. Sulla base delle raccomandazioni del Trans-Atlantic Inter Society Consensus II, 123 (52,1%) pazienti furono sottoposti a PTA (gruppo PTA) e 113 (47,9%) furono trattati con sola terapia medica (gruppo MT). L’incidenza di eventi CV maggiori e le curve di sopravvivenza al follow up furono valutate con l’analisi Cox e le curve di Kaplan-Meier, rispettivamente.
Risultati. Non si osservarono differenze statisticamente significative nei fattori di rischio CV tra gruppo PTA e gruppo MT. Una prevalenza minore di uomini (74.8% vs. 85.8%, p=0.034) e una peggiore distanza di marcia (108.7 ± 300.9 vs 378.4 ± 552.3 meters, p<0.001) fu rilevata nel gruppo PTA. Durante una mediana di follow up di 20 mesi (12.0-29.0), l’incidenza di eventi cardiovascolari fu significativamente inferiore nel gruppo PTA rispetto al gruppo MT (7.3% vs. 22.1%, p=0.001) e i pazienti del gruppo MT avevano all’analisi Cox un rischio 3,9 volte superiore di sviluppare eventi CV rispetto al gruppo PTA dopo correzione per possibili fattori confondenti.
Conclusioni. Il presente studio mostra che la PTA degli arti inferiori nei pazienti diabetici affetti da AOAI non solo migliora lo stato funzionale ma è anche associata ad un miglioramento della prognosi cardiovascolare rispetto alla sola terapia medica.
Web data modeling for integration in data warehouses
Creators: name: Miniaoui, Sami
name: Darmont, Jérôme
name: Boussaïd, Omar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: In a data warehousing process, the data preparation phase is crucial. Mastering this phase allows substantial gains in terms of time and performance when performing a multidimensional analysis or using data mining algorithms. Furthermore, a data warehouse can require external data. The web is a prevalent data source in this context, but the data broadcasted on this medium are very heterogeneous. We propose in this paper a UML conceptual model for a complex object representing a superclass of any useful data source (databases, plain texts, HTML and XML documents, images, sounds, video clips...). The translation into a logical model is achieved with XML, which helps integrating all these diverse, heterogeneous data into a unified format, and whose schema definition provides first-rate metadata in our data warehousing context. Moreover, we benefit from XML's flexibility, extensibility and from the richness of the semi-structured data model, but we are still able to later map XML documents into a database if more structuring is needed.
Legendre Trajectories of Trans-$S$-Manifolds
Creators: name: Güvenç, Şaban
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary 53C25, Secondary 53C40, 53A04

description: In this paper, we consider Legendre trajectories of trans-$S$-manifolds. We obtain curvature characterizations of these curves and give a classification theorem. We also investigate Legendre curves whose Frenet frame fields are linearly dependent with certain combination of characteristic vector fields of the trans-$S$-manifold.
Il federalismo fiscale alla luce dell'autonomia tributaria degli enti locali
Creators: name: Converti, Maria Antonietta
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il presente studio ha inteso affrontare il tema della finanza locale con particolare riguardo alla struttura dei rapporti istituzionali tra lo Stato e gli enti territoriali. Al fine di descrivere l’attuale cornice politico- istituzionale nella quale si colloca l’autonomia tributaria degli enti locali, il lavoro  è partito dal complesso tema del federalismo fiscale.
 Il fine di questa ricerca è di descrivere gli aspetti generali e i singoli punti fermi della normativa vigente per poi affrontare il tema dell’autonomia tributaria degli enti territoriali. In tale prospettiva si è ritenuto utile, in primis, argomentare sui sistemi concreti di federalismo descrivendone i caratteri in relazione al sistema istituzionale italiano per poi trattare il complesso processo di attuazione del Titolo V  Parte II della Costituzione.
Il lavoro prosegue analizzando la legge 5 maggio 2009, n. 42, che avviando il processo riformatore consegna l’espressione federalismo fiscale alla terminologia legislativa. In tale sede si è inteso trattare il delicato tema legato ai principi fondamentali di coordinamento in materia tributaria e si sono analizzati alcuni dei principali decreti delegati.
Lo studio è, inoltre, proceduto dedicando un approfondimento al tema dell’autonomia tributaria delle Regioni cercando di dar conto del progetto di federalizzazione dello Stato cha ha spinto il legislatore ad intervenire sul sistema di finanziamento degli enti territoriali al fine di assicurare la loro autonomia tributaria.
 Infine si è ritenuto necessario analizzare il tema dei rapporti tra l’autonomia tributaria e il diritto europeo cercando di valutare l’esercizio dell’attività legislativa e regolamentare degli enti territoriali in relazione ai principi comunitari, dedicando particolare attenzione alla mancata o non corretta applicazione delle norme comunitarie da parte delle Regioni e degli enti locali.
Some New Monotonicity Formulas and the Singular Set in the Lower Dimensional Obstacle Problem
Creators: name: Garofalo, Nicola
name: Petrosyan, Arshak
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R35

description: We construct two new one-parameter families of monotonicity formulas to study the free boundary points in the lower dimensional obstacle problem. The first one is a family of Weiss type formulas geared for points of any given homogeneity and the second one is a family of Monneau type formulas suited for the study of singular points. We show the uniqueness and continuous dependence of the blowups at singular points of given homogeneity. This allows to prove a structural theorem for the singular set. Our approach works both for zero and smooth non-zero lower dimensional obstacles. The study in the latter case is based on a generalization of Almgren's frequency formula, first established by Caffarelli, Salsa, and Silvestre.
description: 44 pages, 2 figures
Pairwise Interactions of Ring Dark Solitons with Vortices and other Rings: Stationary States, Stability Features and Nonlinear Dynamics
Creators: name: Wang, Wenlong
name: Kolokolnikov, Theodore
name: Frantzeskakis, D. J.
name: Carretero-González, R.
name: Kevrekidis, P. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In the present work, we explore analytically and numerically the co-existence and interactions of ring dark solitons (RDSs) with other RDSs, as well as with vortices. The azimuthal instabilities of the rings are explored via the so-called filament method. As a result of their nonlinear interaction, the vortices are found to play a stabilizing role on the rings, yet their effect is not sufficient to offer complete stabilization of RDSs. Nevertheless, complete stabilization of the relevant configuration can be achieved by the presence of external ring-shaped barrier potentials. Interactions of multiple rings are also explored, and their equilibrium positions (as a result of their own curvature and their tail-tail interactions) are identified. In this case too, stabilization is achieved via multi-ring external barrier potentials.
description: 13 pages, 8 figures
Doped Nano-Electromechanical Systems
Creators: name: Scheible, Dominik V.
name: Qin, Hua
name: Kim, Hyun-Seok
name: Blick, Robert H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a new generation of nano-electromechanical systems (NEMS), which are realized by doping the semiconductor base material. In contrast to the traditional approach these doped NEMS (D-NEMS) do not require a metallization layer. This makes them far lighter and hence increases resonance frequency and quality factor. Additionally, D-NEMS can be tuned from the conductive state into an insulating one. This will enable a host of new device designs, like mechanically tunable pin-junctions and nanomechanical single electron switches. We demonstrate D-NEMS fabrication and operation from the intrinsic, to the light, and to the heavy regime of doping.
description: 4 pages, 4 figures
Publishable Summary for 22IEM04 MQB-Pascal Metrology for quantum-based traceability of the pascal (June 2023)
Creators: name: Tom, Rubin
Publisher: name: Zenodo
Year: 2023
Subjects: MQB-Pascal
pressure
desity
quantum-based
nitrogen

description: This is the Publishable Summary for the MQB-Pascal project. The overall objective of this EU project is to establish a metrological infrastructure for a traceable quantum‑based pascal in the 1 Pa to 1 MPa range via the realisation of instrumentation and dissemination of the technology with minimal loss of performance to stakeholders. The methods will also be evaluated in terms of practical applications.