cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dual-Cavity Spectrometer for Monitoring Broadband Light Extinction by Atmospheric Aerosols
Creators: name: Aiswarya Saseendran
name: Mathai, Susan
name: Joshi, Shreya
name: Anoop Pakkattil
name: Capek, Tyler
name: Kinney, Gregory
name: Mazzoleni, Claudio
name: Varma, Ravi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: Science Policy

description: Atmospheric Aerosols affect Earth’s climate directly by scattering and absorbing solar radiation. In order to study the optical properties of aerosols, we developed a broadband cavity-enhanced spectrometer that uses a supercontinuum laser source and a compact spectrometer, to measure simultaneously the extinction coefficient of aerosols over a broad wavelength region from 420-540 nm. The system employs a dual cavity approach with a reference and a sample cavity, accounting for changes in gases background and for laser spectral and intensity fluctuations. We tested the system with aerosolized salt particles and polystyrene latex spheres. We performed calculations using Mie theory and found good agreement with the measured extinction. We also found that the extinction coefficient of non-absorbing aerosol favorably compares with the scattering coefficient measured by a nephelometer. Finally, we generated soot particles and found an extinction Ångström exponent in good agreement with values reported in the literature. Wavelength dependent detection limits (1σ) for the instrument at 5 nm wavelength resolution and for an integration time of ∼10 minutes were found to be in the range ∼5 Mm−1 – 13 Mm−1. The broadband dual-cavity extinction spectrometer is simple and robust and might be particularly useful for laboratory measurements of the extinction coefficient of brown carbon aerosol. The laboratory tests suggest that the prototype is promising for future developments of a field-deployable instrument.
Tidal controls on the lithospheric thickness and topography of Io from magmatic segregation and volcanism modelling
Creators: name: Spencer, Dan C
name: Katz, Richard F
name: Hewitt, Ian J
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Tidal heating is expected to impart significant, non-spherically-symmetric structure to Jupiter's volcanic moon Io. A signature of spatially variable tidal heating is generally sought in observations of surface heat fluxes or volcanic activity, an exploration complicated by the transient nature of volcanic events. The thickness of the lithosphere is expected to change over much longer timescales, and so may provide a robust link between surface observations and the tidal heating distribution. To predict long-wavelength lithospheric thickness variations, we couple three-dimensional tidal heating calculations to a suite of one-dimensional models of magmatic segregation and volcanic eruption. We find that the lithospheric thickness could either be correlated with the radially integrated heating rate, or weakly anti-correlated. Lithospheric thickness is correlated with radially integrated heating rate if magmatic intrusions form at a constant rate in the lithosphere, but is weakly anti-correlated if intrusions form at a rate proportional to the flux through volcanic conduits. Utilising a simple isostasy model we show how variations in lithospheric thickness can predict long-wavelength topography. The relationship between lithospheric thickness and topography depends on the difference in chemical density between the lithosphere and mantle. Assuming that this difference is small, we find that long-wavelength topography anti-correlates with lithospheric thickness. These results will allow future observations to critically evaluate models for Io's lithospheric structure, and enable their use in constraining the distribution of tidal heating.
description: Published in Icarus
Signal smoothing for score-driven models: a linear approach
Creators: name: Blazsek, Szabolcs
name: Ayala, Astrid
name: Licht, Adrian
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Neuroscience
Biotechnology
Mathematical Sciences not elsewhere classified

description: In the present article, a linear approach of signal smoothing for nonlinear score-driven models is suggested, by using results from the literature on minimum mean squared error signals. Score-driven location, trend, and seasonality models with constant and score-driven scale parameters are used, for which the parameters are estimated by using the maximum likelihood method. The smoothing procedure is computationally fast, and it uses closed-form formulas for smoothed signals. Applications for monthly data of the seasonally adjusted and the not seasonally adjusted the United States inflation rate variables for the period of 1948–2020 are presented.
title: Study and Therapeutic Interference of T Cell Function in Pressure Overload-induced Heart Failure
Creators: name: Martini, Elisa
Publisher: name: The Open University
Year: 2017

description: Heart failure (HF) is a leading cause of mortality. Inflammation is implicated in HF, yet clinical trials targeting pro-inflammatory cytokines in HF were unsuccessful, possibly due to redundant functions of individual cytokines. We attempted to identify and exploit better targets in cardiac inflammation so as to enable an immunotherapy of HF. We linked T cells with HF development in the gold-standard mouse model of HF and in human HF patients. We inhibited T cell function in vivo via T cell costimulation blockade, through FDA-approved rheumatoid arthritis drug abatacept (CTLA-Ig). Administration of abatacept led to highly significant delay in progression and decreased severity of cardiac dysfunction in the mouse HF model. The therapeutic effect occurred via inhibition of activation and cardiac infiltration of T cells and macrophages, leading to reduced cardiomyocyte death. Treatment also induced production of anti-inflammatory cytokine interleukin-10 (IL-10). IL-10-deficient mice were refractive to treatment, whilst protection could be rescued by transfer of IL-10-sufficient B cells. These results suggest that T cell costimulation blockade could be therapeutically exploited as a possible HF treatment.
Fermions without fermi fields
Creators: name: Ball, R. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It is shown that an arbitrary Fermion hopping hamiltonian can be represented by a system with no fermion fields, generalising earlier results by M. Levin & X.G. Wen [Phys Rev B 67, 245316 (2003)]. All the operators in the hamiltonian of resulting description obey the principle of locality, that operators associated with different sites commute, despite the system having excitations obeying Fermi statistics. Whilst extra conserved degrees of freedom are introduced, they are all locally identified in the representation obtained. The same methods apply to Majorana (half) fermions, which for cartesian lattices mitigate the Fermion Doubling Problem. The generality of these results suggests that the observation of Fermion excitations in nature does not demand that anticommuting Fermion fields are fundamental.
description: 4 pages, submitted to PRL 18 Sept 2004; typos in equation (3) corrected 29 Sept 2004 - thanks to DR Daniels; this version as resubmitted to PRL 4 Aug 05 and accepted 6 Sept 05
Monitoring process mean and variability with one triple EWMA chart
Creators: name: Chatterjee, Kashinath
name: Koukouvinos, Christos
name: Lappa, Angeliki
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Mental Health

description: Control charts are very popular quality tools used to detect and control industrial process deviations in Statistical Process Control. In the current paper, we propose a new single memory-type control chart, called the maximum triple exponentially weighted moving average chart (referred as Max-TEWMA chart), that simultaneously detects both upward and downward shifts in the process mean and/or process dispersion. The run length performance and the diagnostic ability of the Max-TEWMA control chart are compared with that of the Max-EWMA, Max-DEWMA and Max-GWMA charts, through Monte-Carlo simulations. The comparisons reveal that the proposed chart is more efficient, than the competing ones, in detecting shifts in the process mean and variability simultaneously. Furthermore, the Max-TEWMA chart provides a satisfactory overall performance for identifying a wide range of shifts in the process mean and variability. Finally, two illustrative examples are presented to explain the application of the Max-TEWMA control chart.
Religious freedom as a human right: an international overview focusing on Brazil
Creators: name: Junior, Claudio Antonio Klaus
Publisher: name: figshare
Year: 2020
Subjects: subject: 180114 Human Rights Law
subject: FOS: Law
subject: 180119 Law and Society

description: In current days the importance of Religious Freedom has been discussed throughout theworld. The present article aims to bring a general overview of religious freedom in the world,with an analysis of the theme in Brazil, covering the law and real cases based on previousresearches and field experience.
Topcolor breaking through boundary conditions
Creators: name: Hashimoto, Michio
name: Hong, Deog Ki
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The nontrivial boundary conditions (BC's) for the Topcolor breaking are investigated in the context of the TeV-scale extra dimension scenario. In the gauge symmetry breaking mechanism via the BC's we do not need to incorporate a dynamical mechanism for the Topcolor breaking into the model. Moreover, the Topcolor breaking can be realized without introducing explicitly a (composite) scalar field. We present a six dimensional model where the top and bottom quarks in the bulk have the Topcolor charge while the other quarks in the bulk do not. We also put the electroweak gauge interaction in the six dimensional bulk. The bottom quark condensation is naturally suppressed owing to the power-like running of the bulk U(1)_Y interaction, so that only the top condensation is expected to take place. We explore such a possibility based on the ladder Schwinger-Dyson equation and show the cutoff to make the model viable.
description: 12 pages, 2 figures. Version to be published in Physical Review D. Typos corrected
La teoria del ciclo vitale del risparmio di Modigliani cinquant’anni dopo
Creators: name: Baranzini, Mauro
Publisher: name: Moneta e Credito
Year: 2012
Subjects: subject: ciclo vitale del consumo; ciclo vitale del risparmio; Keynes ; politica economica
subject: E21, D31, D91

description: In the early 50s Franco Modigliani and Richard Brumberg and Albert Ando, ​​formulated the life-cycle theory of consumption and saving, which has been a huge success and undisputed for at least three decades. However, since the early 80s the life-cycle theory has been criticized in an increasingly tight for at least four reasons. The first is the existence of a significant intergenerational transmission of wealth, due to factors exogenous to the model of the life cycle. The second reason is the increasing evidence that the rich continue to save a greater extent than the less fortunate, as, in fact, Keynes argued. The third reason is that there is increasing evidence, at least in Western Europe and Japan, young families, during twenty and thirty years of age, save a positive and growing share of their income, which arises in decided contrast to the original version of the life-cycle theory. Finally, a number of empirical studies have found that retirees dismiss a high proportion of their income. This requires a serious rethinking of the approach of the life-cycle theory, which affects both the economic analysis and economic policy. Nei primi anni ’50 Franco Modigliani, insieme a Richard Brumberg e ad Albert Ando, formulò la teoria del ciclo vitale del consumo e del risparmio, che ha riscosso un enorme e indiscusso successo per almeno tre decenni. Tuttavia, a partire dai primi anni ’80 la teoria del ciclo vitale è stata criticata in modo sempre più serrato, per almeno quattro ragioni. La prima consiste nell’esistenza di una significativa trasmissione intergenerazionale della ricchezza, da ricondurre a cause esogene al modello del ciclo vitale. La seconda ragione è rappresentata dalla crescente evidenza che i ricchi continuano a risparmiare in misura maggiore rispetto ai meno fortunati, come, in effetti, Keynes sosteneva. Il terzo motivo è che vi sono prove sempre più evidenti, almeno nell’Europa occidentale e in Giappone, che le famiglie giovani, durante i venti e i trenta anni di età, risparmiano una quota positiva e crescente del proprio reddito, e ciò si pone in deciso contrasto con la versione originaria della teoria del ciclo vitale. Infine, numerosi lavori empirici hanno rilevato che i pensionati accantonano una parte elevata del proprio reddito. Ciò impone un serio ripensamento dell’approccio della teoria del ciclo vitale, che interessa sia l’analisi economica sia la politica economica. JEL Codes: E21, D31, D91 Keywords: ciclo vitale del consumo; ciclo vitale del risparmio; Keynes ; politica economica
description: Moneta e Credito, vol. 58 nn. 230-231 (2005)
Verzeichnis der Musikalien zum Nachlass Philipp Kaspar Nabholz
Creators: name: Zentral- und Hochschulbibliothek Luzern
Publisher: name: Zentral- und Hochschulbibliothek Luzern
Year: 2024
Subjects: Nachlass
Nabholz, Philipp Kaspar

description: Verzeichnis der Musikalien zum Nachlass Philipp Kaspar Nabholz
Umfang: 1.1 Lfm
description: Standort: [ZHB] Sempacherstrasse / Luzern (Tresor BB), Signatur: Ms.N.74
Selective Noise Resistant Gate
Creators: name: Zimmermann, Jonatan
name: London, Paz
name: Yirmiyahu, Yaniv
name: Jelezko, Fedor
name: Blank, Aharon
name: Gershoni, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Realizing individual control on single qubits in a spin-based quantum register is an ever-increasing challenge due to the close proximity of the qubits resonance frequencies. Current schemes typically suffer from an inherent trade-off between fidelity and qubits selectivity. Here, we report on a new scheme which combines noise protection by dynamical decoupling and magnetic gradient based selectivity, to enhance both the fidelity and the selectivity. With a single nitrogen-vacancy center in diamond, we experimentally demonstrate quantum gates with fidelity = 0.9 $\pm$ 0.02 and a 50 kHz spectral bandwidth, which is almost an order of magnitude narrower than the unprotected bandwidth. Our scheme will enable selective control of an individual nitrogen-vacancy qubit in an interacting qubits array using relatively moderate gradients of about 1 mG/nm.
description: 11 pages, 12 figures
title: Bautechnische Abbildungswerke von 1800 bis 1900
Creators: name: Mühlberger, Marvin
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Bautechnische Abbildungswerke
subject: Bauconstructeur
subject: Hochschulausbildung für Bauwesen im19. Jahrhundert
subject: Constrctional Works of Reference
subject: Bauconstructure
subject: Higher Education für Construction and Building within the 19th century

description: Der rasante Fortschritt der Technologie im Bauwesen im 19. Jahrhundert in Wien führte zu einer grundlegenden Umgestaltung in der Ausbildung eines Ingenieurs und Architekten. Als Konsequenz dieser Entwicklung und der nun vorhandenen Masse an neuen und komplexeren Baukonstruktionen hatte die Herausbildung von Hilfsliteratur, von bautechnischen Vorlagewerken zur Folge. Diese Publikationen verstehen sich als Medium, technisches Wissen aufzuzeichnen und weiterzugeben. Sie sollen dem Schüler als Ergänzung zur Ausbildung dienen, auch sollen diese in der Praxis von Nutzen sein. Die Aufarbeitung der ab 1874 entstandenen bautechnischen Vorlagewerke gibt einen Einblick in jene Zeit, als die kurz zuvor noch empirisch begründete Baukonstruktionslehre im Umbruch war. Auch geben diese Werke Auskunft über die Unterrichtsmethoden, aber auch über den Wissensstand in der Technik zum Zeitpunkt der Herausgabe eines Werkes.
description: The rapid progress of technology in building industry of 19th century Vienna led to basic restructuring of the education for engineers and architects. As a consequence the now available multitude of new and more complex structural design evoked the reinvention of supporting literature - illustrated works of reference. These publications are considered a medium to register and convey technical knowledge. They are also meant to act as supportive additions in their education, as well as be of practical service. The reappraisal of contructional works of reference since 1874 grants an insight into a time shortly before the still empirical science of structural design was about to change.They also disclose information about teaching-methods, but also standard of knowledge in technology at the time of publication.
L’ipotesi del ciclo vitale, la politica fiscale e la previdenza sociale (The hypothesis of the life cycle, fiscal policy and social security)
Creators: name: Jappelli, Tullio
Publisher: name: Moneta e Credito
Year: 2012
Subjects: subject: ciclo vitale, risparmio, modigliani, politica economica
subject: D91

description: Il lavoro riassume le principali implicazioni dell’ipotesi del ciclo vitale per quanto riguarda il risparmio individuale e aggregato, la politica fiscale e la previdenza sociale, soffermandosi sui contributi più importanti di Modigliani su questi temi. Anche se non è facile conciliare alcuni risultati empirici recenti con l’ipotesi del ciclo vitale, soprattutto gli aspetti di inerzia, miopia e comportamento irrazionale documentati nella letteratura comportamentale, gli studi di Modigliani rappresentano ancora oggi la base di riferimento principale per studiare le decisioni di risparmio individuali e per operare scelte di politica economica. The paper summarizes the main implications of the life cycle hypothesis regarding the individual and aggregate saving, fiscal policy and social security, focusing on the most important contributions of Modigliani on these issues. Although it is not easy to reconcile some recent empirical results with the hypothesis of the life cycle, especially the aspects of inertia, myopia and irrational behavior documented in the literature behavioral, the studies of Modigliani still represent the basis of reference for the study of individual savings decisions and to make policy choices. JEL Codes: D91 Keywords: ciclo vitale, risparmio, modigliani, politica economica
description: Moneta e Credito, vol. 58 nn. 230-231 (2005)
Monitoring process mean and variability with one triple EWMA chart
Creators: name: Chatterjee, Kashinath
name: Koukouvinos, Christos
name: Lappa, Angeliki
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Mental Health

description: Control charts are very popular quality tools used to detect and control industrial process deviations in Statistical Process Control. In the current paper, we propose a new single memory-type control chart, called the maximum triple exponentially weighted moving average chart (referred as Max-TEWMA chart), that simultaneously detects both upward and downward shifts in the process mean and/or process dispersion. The run length performance and the diagnostic ability of the Max-TEWMA control chart are compared with that of the Max-EWMA, Max-DEWMA and Max-GWMA charts, through Monte-Carlo simulations. The comparisons reveal that the proposed chart is more efficient, than the competing ones, in detecting shifts in the process mean and variability simultaneously. Furthermore, the Max-TEWMA chart provides a satisfactory overall performance for identifying a wide range of shifts in the process mean and variability. Finally, two illustrative examples are presented to explain the application of the Max-TEWMA control chart.
Una rivisitazione delle teorie di Modigliani sulla finanza (A Reappraisal of Modgliani's Finance Theories)
Creators: name: Cozzi, Terenzio
Publisher: name: Moneta e Credito
Year: 2012
Subjects: subject: Modigliani, finanza, habitat preferito, Modigliani, Miller
subject: B22, E43, E44, G10, G30

description: L’articolo esamina l’influenza dei contributi di Modigliani su questioni di finanza. La teoria dell’habitat preferito, proposta per spiegare la struttura a termine dei tassi di interesse, è stata utilizzata dagli operatori finanziari fino agli anni '80. Poi è stata messa da parte come obsoleta, ma sembra che oggi possa di nuovo riprendere validità. Il teorema di Modigliani-Miller, oggetto di innumerevoli critiche, rimane comunque un pilastro nella teoria della finanza. Per contro, la tesi sulla sottovalutazione irrazionale della quotazioni azionarie nei periodi di inflazione ha lasciato del tutto indifferenti gli operatori finanziari. Ma molti economisti concordano con la conclusione che i mercati possono per lungo tempo svolgere male il compito di indirizzare le risorse verso gli impieghi più produttivi. The article examines the influence of the contributions of Modigliani on issues of finance. The preferred habitat theory, proposed to explain the term structure of interest rates, has been used by financial operators until the 80s. Then it was put aside as obsolete, but it seems that can again resume validity. The Modigliani-Miller theorem, the subject of many criticisms, it remains a pillar in the theory of finance. On the other hand, the thesis on the irrational underestimation of stock prices during periods of inflation has left quite indifferent financial operators. But many economists agree with the conclusion that markets can play hurt for a long time the task of directing resources towards more productive uses. JEL Codes: B22, E43, E44, G10, G30 Keywords: Modigliani, finanza, habitat preferito, Modigliani, Miller
description: Moneta e Credito, vol. 58 nn. 230-231 (2005)
Characterizing ultra-low emittance electron beams using structured light fields
Creators: name: Seidel, Andreas
name: Zepf, Jens Osterhoff und Matt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Novel schemes for generating ultra-low emittance electron beams have been developed in the last years and promise compact particle sources with excellent beam quality suitable for future high-energy physics experiments and free-electron lasers. Current methods for the characterization of low emittance electron beams such as pepperpot measurements or beam focus scanning are limited in their capability to resolve emittances in the sub $0.1$ mm mrad regime. Here we propose a novel, highly sensitive method for the single shot characterization of the beam waist and emittance using interfering laser beams. In this scheme, two laser pulses are focused under an angle creating a grating-like interference pattern. When the electron beam interacts with the structured laser field, the phase space of the electron beam becomes modulated by the laser ponderomotive force and results in a modulated beam profile after further electron beam phase advance, which allows for the characterization of ultra-low emittance beams. 2D PIC simulations show the effectiveness of the technique for normalized emittances in the range of $ε_n=[0.01,1]$ mm mrad.
description: 6 Pages, 7 figures
Thermal Image and Phase Transitions of Charged AdS Black Holes using Shadow Analysis
Creators: name: Belhaj, A.
name: Chakhchi, L.
name: Moumni, H. El
name: Khalloufi, J.
name: Masmar, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the relations between the black hole shadow and charged AdS black hole critical behaviour in the extended phase space. Using the thermo-shadow formalism built-in [1], we reveal that the shadow radius can be considered as an efficient tool to study thermodynamical black hole systems. Based on such arguments, we build a thermal profile by varying the RN-AdS black hole temperature on the shadow silhouette. Among others, the Van der Waals-like phase transition takes place. This could open a new window on the thermal picture of black holes and the corresponding thermodynamics from the observational point of view.
description: 16 pages, 1 Tikz and 6 pdf figures, accepted in IJMPA
I teoremi di Modigliani-Miller: una pietra miliare della finanza (The theorems of Modigliani-Miller: a cornerstone of finance)
Creators: name: Pagano, Marco
Publisher: name: Moneta e Credito
Year: 2012
Subjects: subject: struttura finanziaria; politica dei dividendi; valore delle imprese
subject: G32, G35

description: The theorems of Modigliani and Miller (MM) is a cornerstone of finance for two reasons.The first is substantial and is derived from the nature of "propositions irrelevant": they identify a case in which the financial structure and dividend policy will not affect the value of firms, and in doing so give us a clear point of reference to understand instead what circumstances these decisions affect the value of firms, and why. In fact, the whole subsequent evolution of corporate finance has explored the consequences of removing the assumptions of MM. The second reason for the importance of the fundamental theorems of MM is methodological: they have been demonstrated with a reasoning based arbitrage, which has set a precedent not only in the area of ​​corporate finance but also in that of the determination of prices of financial securities. I teoremi di Modigliani e Miller (MM) sono una pietra miliare della finanza per due ragioni. La prima è sostanziale e deriva dalla loro natura di “proposizioni di irrilevanza”: essi individuano un caso in cui la struttura finanziaria e la politica dei dividendi non influiscono sul valore delle imprese, e così facendo ci danno un chiaro punto di riferimento per capire in quali circostanze invece queste decisioni influiscono sul valore delle imprese, e perché. In effetti, l’intera evoluzione successiva della finanza aziendale ha esplorato le conseguenze della rimozione delle ipotesi di MM. La seconda ragione dell’importanza fondamentale dei teoremi di MM è di tipo metodologico: essi sono stati dimostrati con un ragionamento basato sull’arbitraggio, il che ha stabilito un precedente non solo nel campo della finanza aziendale ma anche e soprattutto in quello della determinazione dei prezzi dei titoli finanziari. JEL Codes: G32, G35 Keywords: struttura finanziaria; politica dei dividendi; valore delle imprese
description: Moneta e Credito, vol. 58 nn. 230-231 (2005)
Optimal with respect to accuracy algorithms for calculation of multidimensional weakly singular integrals and applications to calculations of capacitances of conductors of arbitrary shapes
Creators: name: Boikov, I.
name: Ramm, A. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65D32, 78A30, 78M25

description: Cubature formulas, asymptotically optimal with respect to accuracy, are derived for calculating multidimensional weakly singular integrals. They are used for developing a universal code for calculating capacitances of conductors of arbitrary shapes.
description: 45pp
title: A Study into Best Practices and Procedures used in the Management of Database Systems
Creators: name: Holt, Victoria
Publisher: name: The Open University
Year: 2017

description: There has been a vast expansion of data usage in recent years. The requirements of database systems to provide a variety of information has resulted in many more types of database engines and approaches (such as cloud computing). A once simple management task has become much more complex. Challenges exist for database managers to make the best choices of practices and procedures to satisfy the requirements of organisations. This research is aimed at understanding how the management of database systems is undertaken, how best practices and procedures form a part of the management process, and the complex nature of database systems. The study examined the adoption of best practices and how the complex interactions between components of the database system affect management and performance. The research followed a mixed methods approach, using sequential explanatory design. The quantitative research phase, using an online survey, highlighted the breadth of issues relevant to database management. It concluded that existing practices and procedures were not optimal, and revealed some of the complexities. Based on the findings from the survey the qualitative research phase that followed utilized information from the quantitative survey to seek understanding of key areas, through a number of focus groups. As part of this research, an innovative method was developed in which thematic analysis of the resulting data was deepened through the use of systems thinking and diagramming. Taking this holistic approach to database systems enabled a different understanding of best practices and the complexity of database systems. A ‘blueprint’, called a CODEX, was drawn up to support improvement and innovation of database systems. Based on a comprehensive assessment of the individual causal interactions between data components, a data map detailed the complex interactions.
A natural boundary of dark matter haloes revealed around the minimum bias and maximum infall locations
Creators: name: Fong, Matthew
name: Han, Jiaxin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the boundary of dark matter haloes through their bias and velocity profiles. Using cosmological $N$-body simulations, we show that the bias profile exhibits a ubiquitous trough that can be interpreted as created by halo accretion that depletes material around the boundary. The inner edge of the active depletion region is marked by the location of the maximum mass inflow rate that separates a growing halo from the draining environment. This inner depletion radius can also be interpreted as the radius enclosing a highly complete population of splashback orbits, and matches the optimal exclusion radius in a halo model of the large-scale structure. The minimum of the bias trough defines a characteristic depletion radius, which is located within the infall region bounded by the inner depletion radius and the turnaround radius, while approaching the turnaround radius in low mass haloes that have stopped mass accretion. The characteristic depletion radius depends the most on halo mass and environment. It is approximately $2.5$ times the virial radius and encloses an average density of $\sim 40$ times the background density of the universe, independent on halo mass but dependent on other halo properties. The inner depletion radius is smaller by $10-20\%$ and encloses an average density of $\sim 63$ times the background density. These radii open a new window for studying the properties of haloes.
description: refined velocity space characterization. MNRAS accepted
Global convergence for ill-posed equations with monotone operators: the dynamical systems method
Creators: name: Ramm, A. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Consider an operator equation $F(u)=0$ in a real Hilbert space. Let us call this equation ill-posed if the operator $F'(u)$ is not boundedly invertible, and well-posed otherwise. If $F$ is monotone $C^2_{loc}(H)$ operator, then we construct a Cauchy problem, which has the following properties: 1) it has a global solution for an arbitrary initial data, 2) this solution tends to a limit as time tends to infinity, 3) the limit is the minimum norm solution to the equation $F(u)=0$. Example of applications to linear ill-posed operator equation is given.
Conductance asymmetries in mesoscopic superconducting devices due to finite bias
Creators: name: Melo, André
name: Liu, Chun-Xiao
name: Rożek, Piotr
name: Rosdahl, Tómas Örn
name: Wimmer, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Tunneling conductance spectroscopy in normal metal-superconductor junctions is an important tool for probing Andreev bound states in mesoscopic superconducting devices, such as Majorana nanowires. In an ideal superconducting device, the subgap conductance obeys specific symmetry relations, due to particle-hole symmetry and unitarity of the scattering matrix. However, experimental data often exhibits deviations from these symmetries or even their explicit breakdown. In this work, we identify a mechanism that leads to conductance asymmetries without quasiparticle poisoning. In particular, we investigate the effects of finite bias and include the voltage dependence in the tunnel barrier transparency, finding significant conductance asymmetries for realistic device parameters. It is important to identify the physical origin of conductance asymmetries: in contrast to other possible mechanisms such as quasiparticle poisoning, finite-bias effects are not detrimental to the performance of a topological qubit. To that end we identify features that can be used to experimentally determine whether finite-bias effects are the source of conductance asymmetries.
description: 19 pages, 10 figures
Spin-imbalanced ultracold Fermi gases in a two-dimensional array of tubes
Creators: name: Sundar, Bhuvanesh
name: Fry, Jacob A.
name: Revelle, Melissa C.
name: Hulet, Randall G.
name: Hazzard, Kaden R. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Motivated by a recent experiment [Revelle et al. Phys. Rev. Lett. 117, 235301 (2016)] that characterized the one- to three-dimensional crossover in a spin-imbalanced ultracold gas of $^6$Li atoms trapped in a two-dimensional array of tunnel-coupled tubes, we calculate the phase diagram for this system using Hartree-Fock Bogoliubov-de Gennes mean-field theory, and compare the results with experimental data. Mean-field theory predicts fully spin-polarized normal, partially spin-polarized normal, spin-polarized superfluid, and spin-balanced superfluid phases in a homogeneous system. We use the local density approximation to obtain density profiles of the gas in a harmonic trap. We compare these calculations with experimental measurements in Revelle {\em et al.} as well as previously unpublished data. Our calculations qualitatively agree with experimentally-measured densities and coordinates of the phase boundaries in the trap, and quantitatively agree with experimental measurements at moderate-to-large polarizations. Our calculations also reproduce the experimentally-observed universal scaling of the phase boundaries for different scattering lengths at a fixed value of scaled inter-tube tunneling. However, our calculations have quantitative differences with experimental measurements at low polarization, and fail to capture important features of the one- to three-dimensional crossover observed in experiments. These suggest the important role of physics beyond-mean-field theory in the experiments. We expect that our numerical results will aid future experiments in narrowing the search for the FFLO phase.
description: 13 pages, 8 figures. Minor revisions; Conclusions unchanged
Analysis and applications of the residual varentropy of random lifetimes
Creators: name: Di Crescenzo, Antonio
name: Paolillo, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In reliability theory and survival analysis, the residual entropy is known as a measure suitable to describe the dynamic information content in stochastic systems conditional on survival. Aiming to analyze the variability of such information content, in this paper we introduce the variance of the residual lifetimes, "residual varentropy" in short. After a theoretical investigation of some properties of the residual varentropy, we illustrate certain applications related to the proportional hazards model and the first-passage times of an Ornstein-Uhlenbeck jump-diffusion process.
description: 20 pages, 9 figures, to appear on "Probability in the Engineering and Informational Sciences"
Franco Modigliani
Creators: name: Fazio, Antonio
Publisher: name: Moneta e Credito
Year: 2012
Subjects: subject: Accademia dei Lincei, Modigliani
subject: B31

description: In this address to the Accademia dei Lincei, the author discusses the development of Modigliani's thinking, with special reference to the themes of money, monetary policy and economic policy in general, the main aspects of which were an integral part of the Bank of Italy's first econometric model. Stressing Modigliani's balanced position in the macroeconomic debate, the author shows how, while he refrained from taking sides, he put forward cogent arguments defending the need for counter-cyclical policies. Modigliani's many contributions, both theoretical and empirical, have provided central bankers with a valuable tool; his teaching is still relevant for economists and policymakers, highlighting the role of stabilization policies in a global financial system, their influence on economies' competitiveness and their ability to grow. JEL Codes: B31 Keywords: Accademia dei Lincei, Modigliani
description: Moneta e Credito, vol. 58 nn. 230-231 (2005)
Differences of Financial Management Strategy of Central European and Russian Milk Processors
Creators: name: Špička, Jindřich
name: Kontsevaya, S. R.
name: Špička, Jindřich
name: Kontsevaya, S. R.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Financial Economics
subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: Dairy industry
subject: milk processing
subject: financial analysis
subject: controlling
subject: statistical analysis.

description: The aim of this article is a detailed investigation of financial performance of milk processing companies of Central Europe and the Russian Federation before the Russian embargo. An investigated object is a data base of accounting reports of 5 countries over the period of 2009 – 2013. The number of selected companies is 370. The article also involves a short review of the dairy industry condition. In order to compare financial performance of two regions 4 types of criteria i.e. profitability ratios, turnover ratios, liquidity and capital structure were implemented. The differences between the Visegrad group and the Russian Federation were tested through Kolmogorov-Smirnov test at the significance level of 0.05. The main difference between the financial performances is the following: profitability (ROCE) of Russian companies is 3 times higher than in the Central Europe, stock turnover ratio is 2 times lower in the Russian Federation, and credit period is 4 days shorter. Generally speaking, the key difference is higher profitability of Russian companies which may be associated with reduced cost component, different technology of production of dairy products as well as with different capital structure.
Vitamin D and COVID-19
Creators: name: Nguyen, Hoang Anh
Publisher: name: figshare
Year: 2020
Subjects: subject: 111199 Nutrition and Dietetics not elsewhere classified
subject: FOS: Health sciences
subject: 110706 Immunogenetics (incl. Genetic Immunology)
subject: FOS: Clinical medicine
subject: 110799 Immunology not elsewhere classified
subject: 110802 Medical Infection Agents (incl. Prions)
subject: 110311 Medical Genetics (excl. Cancer Genetics)
subject: FOS: Basic medicine

description: Recently, a novel enveloped β-coronavirus, named SARS-CoV-2, has affected thousands of people across many nations since the first cases reported on December 2019 in Wuhan, China. This coronavirus caused a disease called COVID-19 and shared nearly 70% similarity in the genetic material with its renowned sister (SARS-CoV-1). To date, there is still no specific treatment or prevention for the COVID-19. Growing evidence indicates that vitamin D has essential roles in the immune response, particularly against enveloped viruses. The likelihood that vitamin D may offer a possible preventive strategy on SARS-CoV-2 infection should be taken into account.
Towards Framework for Economic Value of Analytical Systems in Agriculture: Proposal of Research
Creators: name: Tyrychtr, Jan
name: Junek, Pavel
name: Vostrovský, Václav
name: Vasilenko, Alexandr
name: Nouza, J.
name: Tyrychtr, Jan
name: Junek, Pavel
name: Vostrovský, Václav
name: Vasilenko, Alexandr
name: Nouza, J.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Analytical systems
subject: economic value
subject: decision support
subject: information systems
subject: agriculture.

description: An important criterion for agricultural businesses and farmers who make investment decisions is the profitability of their investments. If the profitability criterion is applied to investments in analytical systems, problems arise with determining the exact value of such criteria. Special approaches for assessing the benefits of such systems must be used to cope with this problem. This paper focuses on the economic evaluation of analytical systems, whose economic impact in agriculture is unclear. Two main types of research approaches are identified: normative approach and positive approach to the evaluation of analytical systems. These approaches can be used to identify the benefits of analytical systems for agricultural activities, and to express their economic value for the management of agricultural enterprises. A new research process and research phases for the design of a conceptual framework for analytical systems’ economic evaluation in agriculture is proposed based on this theoretical and research background.
La geografia del potere bancario: il ruolo delle distanze funzionali (The Geography of Banking Power: Role of Function Distance)
Creators: name: Alessandrini, Pietro
name: Croci, Manuela
name: Zazzaro, Alberto
Publisher: name: Moneta e Credito
Year: 2012
Subjects: subject: sistema bancario italiano, distanza operativa, regioni, Italia
subject: G21, R12

description: In questo lavoro analizziamo la nuova geografia del sistema bancario italiano che si è determinata in seguito al processo di integrazione delle strutture bancarie negli ultimi anni. L’analisi dell’evoluzione del sistema bancario si basa sul concetto di distanza. In particolare, non facciamo soltanto riferimento alla distanza tradizionale tra banca e clienti, che è la distanza operativa, ma anche alla distanza tra centri decisionali delle banche e i sistemi locali. L’oggetto del saggio riguarda gli effetti che la distanza (o prossimità) funzionale determina sulla performance delle banche in termini di allocazione del credito, sull’efficienza e sulla profittabilità. Le nostre stime econometriche provano che la prossimità funzionale ha effetti territoriali asimmetrici sulla performance delle banche. I suoi effetti benefici sono statisticamente evidenti per le regioni meridionali meno sviluppate, mentre non sono significativamente rilevanti per le regioni più sviluppate del Centro-Nord dell’Italia. In this paper we analyze the new geography of the Italian banking system that has arisen after the integration of banking structures in recent years. The analysis of the evolution of the banking system is based on the concept of distance. In particular, we do not only refer to the traditional distance between banks and customers, which is the operating distance, but also to the distance between the centers of decision-making banks and local systems. The subject of the essay is about the effects that the distance (or proximity) function determines on the performance of banks in terms of credit allocation, on efficiency and on profitability. Our econometric estimates show that the functional proximity has asymmetric territorial effect on the performance of banks. Its beneficial effects are statistically obvious to the less developed southern regions, while they are not significantly relevant to the more developed regions of central and northern Italy. JEL Codes: G21, R12 Keywords: sistema bancario italiano, distanza operativa, regioni, Italia
description: Moneta e Credito, V. 58, N. 232 (2005)
Findmittel zum Vorlass Otto Heigold
Creators: name: Zentral- und Hochschulbibliothek Luzern
Publisher: name: Zentral- und Hochschulbibliothek Luzern
Year: 2024
Subjects: Nachlass
Heigold, Otto

description: Findmittel zum Vorlass Otto Heigold
Der Nachlass umfasst Künstlerbücher, Zeichnungen, Druckgrafiken
Umfang: 29 Archivschachteln
description: Standort: [ZHB] Sempacherstrasse / Luzern (Tresor BB), Signatur: Ms.N.146
Designs toward synchronization of optical limit cycles with coupled silicon photonic crystal microcavities
Creators: name: Takemura, Naotomo
name: Takiguchi, Masato
name: Notomi, Masaya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: A driven high-Q Si microcavity is known to exhibit limit cycle oscillation originating from carrier-induced and thermo-optic nonlinearities. We propose a novel nanophotonic device to realize synchronized optical limit cycle oscillations with coupled silicon (Si) photonic crystal (PhC) microcavities. Here, coupled limit cycle oscillators are realized by using coherently coupled Si PhC microcavities. By simulating coupled-mode equations, we theoretically demonstrate mutual synchronization (entrainment) of two limit cycles induced by coherent coupling. Furthermore, we interpret the numerically simulated synchronization in the framework of phase description. Since our proposed design is perfectly compatible with current silicon photonics fabrication processes, the synchronization of optical limit cycle oscillations will be implemented in future silicon photonic circuits.