cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The economists "Manifesto" unemployment in the EU seven years later: which suggestions still hold?
Creators: name: Moro, Beniamino
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Interest, Monetary, Unemployment
subject: E24, E52, E62

description: I met Franco Modigliani in 1948. We had common interests in three fields of economic theory--Keynes and unemployment, the relations between monetary and real phenomena and market forms and price formation. We had in common also the love for empirical verification and, on another plane, civil commitment. Intellectually we met on the question of price formation and variations in oligopoly, which can be considered as the most common market form in modern economies. Modigliani embodied the formula expressing price formation and variations under oligopoly in two econometric model, the former worked out in the United States, the other in Italy. The paper discusses similarities and differences between our views on these matters. Recently Modigliani promoted a "Manifesto on Unemployment in the European Union", written by six economists, including myself. In it an important role is plaid by the investment, function, conceived by Modigliani and by myself in different though complementary ways ad by the model of price variations, viewed from the point of view of inflation. JEL Codes: E24, E52, E62
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Using pairwise comparisons to determine consumer preferences in hotel selection
Creators: name: Krivulin, N.
name: Prinkov, A.
name: Gladkikh, I.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: Applications (stat.AP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90B50 (Primary), 90C47, 91B06, 41A50, 90C24 (Secondary)

description: We consider the problem of evaluating preferences for criteria used by university students when selecting a hotel for accommodation during a professional development program in a foreign country. Input data for analysis come from a survey of 202 respondents, who indicated their age, sex and whether they have previously visited the country. The criteria under evaluation are location, accommodation cost, typical guests, free breakfast, room amenities and courtesy of staff. The respondents assess the criteria both directly by providing estimates of absolute ratings and ranks, and indirectly by relative estimates using ratios of pairwise comparisons. To improve the accuracy of ratings derived from pairwise comparisons, we concurrently apply the principal eigenvector method, the geometric mean method and the method of log-Chebyshev approximation. Then, the results from the direct and indirect evaluation of ratings and ranks are examined together to analyze how the results from pairwise comparisons may differ from each other and from the results of direct assessment by respondents. We apply statistical techniques, such as estimation of means, standard deviations and correlations, to the vectors of ratings and ranks provided directly or indirectly by respondents, and then use the estimates to make accurate assessment of the criteria under study.
description: 27 pages, 16 tables
Microwave Spectroscopy of Cold Rubidium Atoms
Creators: name: Entin, V. M.
name: Ryabtsev, I. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The effect of microwave radiation on the resonance fluorescence of a cloud of cold $^{85}Rb$ atoms in a magnetooptical trap is studied. The radiation frequency was tuned near the hyperfine splitting frequency of rubidium atoms in the 5S ground state. The microwave field induced magnetic dipole transitions between the magnetic sublevels of the 5S(F=2) and 5S(F=3) states, resulting in a change in the fluorescence signal. The resonance fluorescence spectra were recorded by tuning the microwave radiation frequency. The observed spectra were found to be substantially dependent on the transition under study and the frequency of a repump laser used in the cooling scheme.
description: 6 pages, 4 figures
From theory to practice in macroeconomic models: post-Keynesian eclecticism
Creators: name: Visco, Ignazio
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Macroeconomic Model, Macroeconomics, Post Keynesian, Supply
subject: E12, E13, E63

description: This paper re-examines and discusses the contribution of Franco Modigliani in the construction of macroeconomic models used for prediction and for the development of economic policies. As noted by Paul Samuelson, the theoretical work done by Modigliani was instrumental in the development of the overall framework within which it is matured the " post-Keynesian eclecticism " in the second half of the twentieth century. In the transition from theory to practice are considered two aspects of the work of Modigliani: 1) the systemic approach that focuses on the relationship between the short and long term, and 2) the specific reference to the transmission mechanism of monetary policy in the use of macroeconomic model for policies of economic stabilization. Discuss, finally, briefly what remains today of this contribution, also in connection with some recent proposals on the construction of macroeconomic models. JEL Codes: B22; C5; E12; E52 Keywords: Modigliani, stabilization policy, post-keynesian eclectism
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Franco Modigliani and the life-cycle theory of consumption
Creators: name: Deaton, Angus
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Consumption, Life Cycle, Macroeconomics
subject: B21, B22, B31, D91, E21

description: This paper reviews and discusses the contribution by Franco Modigliani to macroeconomic model building for economist forecasting and policy making. As Paul Samuelson observed, Modigliani's theoretical work was fundamental in the development of the basic framework within which the "post-Keynesian eclecticism" of the later twentieth century developed. In the move from theory to practice two aspects of Modigliani's work are considered: 1) the systemic approach that focuses on the relationship between the short and the long term; 2) the special reference to the mechanism of monetary policy transmission in the use of the macroeconomic model for economic stabilisation policy. What is left today of this contribution is finally briefly discussed, also with reference to some recent proposals on macroeconomic model building. JEL Codes: B21, B22, B31, D91, E21
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Shaping graphene superconductivity with nanometer precision
Creators: name: Río, E. Cortés-del
name: Trivini, S.
name: Pascual, J. I.
name: Cherkez, V.
name: Mallet, P.
name: Veuillen, J-Y.
name: Cuevas, J. C.
name: Brihuega, I.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Graphene holds great potential for superconductivity due to its pure two-dimensional nature, the ability to tune its carrier density through electrostatic gating, and its unique, relativistic-like electronic properties. At present, we are still far from controlling and understanding graphene superconductivity, mainly because the selective introduction of superconducting properties to graphene is experimentally very challenging. Here, we have developed a method that enables shaping at will graphene superconductivity through a precise control of graphene-superconductor junctions. The method combines the proximity effect with scanning tunnelling microscope (STM) manipulation capabilities. We first grow Pb nano-islands that locally induce superconductivity in graphene. Using a STM, Pb nano-islands can be selectively displaced, over different types of graphene surfaces, with nanometre scale precision, in any direction, over distances of hundreds of nanometres. This opens an exciting playground where a large number of predefined graphene-superconductor hybrid structures can be investigated with atomic scale precision. To illustrate the potential, we perform a series of experiments, rationalized by the quasi-classical theory of superconductivity, going from the fundamental understanding of superconductor-graphene-superconductor heterostructures to the construction of superconductor nanocorrals, further used as "portable" experimental probes of local magnetic moments in graphene.
title: An analysis of Dwight Moody's Urban Social Vision
Creators: name: Quiggle, Gregg William
Publisher: name: The Open University
Year: 2010

description: Dwight Moody was the dominant English-speaking evangelist of the late nineteenth century. Much of Moody's work focused on urban centers. This thesis is an analysis of the origins of Dwight Moody's urban social vision. Specifically it studies the role Moody's theology played in the formation of his approach to the various urban ills that emerged during the mid to late nineteenth century in the United States and the United Kingdom. The thesis seeks to show that theology drove Moody's approach to urban ills. Because of Moody's temperament and limited educational background, his personal experiences and personal relationships played an inordinately significant role in the formation of Moody's theology. The thesis explores these experiences and relationships demonstrating how they shaped Moody's theology. It concludes by outlining Moody's theological commitments that framed his social vision, and his resultant social activities. The thesis concludes Moody was an evangelical whose social vision was in significant ways contiguous with those of earlier revivalists like Finney. Specifically, Moody, like Finney, always made evangelism his first priority. Further, similar to Finney, Moody was active in the temperance movement and various educational endeavors. However, Moody's conception of human sinfulness and commitment to premillennialism created a different set of expectations. Moody was dubious about the future of human society. He believed sin was the cause of poverty and that conversion brought freedom from sin and a desire to love others, especially the poor. He also believed the Bible commanded charity to the poor. Consequently, while Moody never fully embraced the Calvinistic goal of a righteous republic, he was concerned about the moral state of the country and the lot of the poor. In fact, Moody was active in numerous charitable endeavors targeting the urban poor. However, Moody maintained the only way to improve public morality and the suffering of the poor was through personal conversion, because only conversion would solve the problem of sin and generate charity. Thus, from Moody's perspective political or structural reforms divorced from evangelism were ultimately doomed to fail.
The problem of time and gauge invariance in the quantization of cosmological models. I. Canonical quantization methods
Creators: name: Shestakova, T. P.
name: Simeone, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The paper is the first of two parts of a work reviewing some approaches to the problem of time in quantum cosmology, which were put forward last decade, and which demonstrated their relation to the problems of reparametrization and gauge invariance of quantum gravity. In the present part we remind basic features of quantum geometrodynamics and minisuperspace cosmological models, and discuss fundamental problems of the Wheeler - DeWitt theory. Various attempts to find a solution to the problem of time are considered in the framework of the canonical approach. Possible solutions to the problem are investigated making use of minisuperspace models, that is, systems with a finite number of degrees of freedom. At the same time, in the last section of the paper we expand our consideration beyond the minisuperspace approximation and briefly review promising ideas by Brown and Kuchar, who propose that dust interacting only gravitationally can be used for time measuring, and the unitary approach by Barvinsky and collaborators. The latter approach admits both the canonical and path integral formulations and anticipates the consideration of recent developments in the path integral approach in the second part of our work.
description: 16 pages, to be published in Grav. Cosmol
Modigliani's life-cycle theory of savings fifty years later
Creators: name: Baranzini, Mauro
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Life Cycle, Saving
subject: B21, B22, B31, D91, E21

description: In the 1950s, Modigliani proposed a theory of spending in which people make intelligent choices about their spending at each age limited by the resources available over their lives. By using assets and debts, working people can provide for their retirement and tailor their spending to their needs at each age independent of income at each age. The theory predicts that national saving depends on the growth of national income, not its level, and that aggregate wealth depends on the length of retirement. Fifty years later, the life-cycle hypothesis remains an essential part of economists' thinking. Without it, we would have much less to say about the private and public provision of social security, the effects of the stock market on the economy, the effects of demographic change on national saving, the role of saving in economic growth, and the determinants of national wealth. JEL Codes: B21, B22, B31, D91, E21
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Physically significant phase shifts in matter-wave interferometry
Creators: name: Overstreet, Chris
name: Asenbaum, Peter
name: Kasevich, Mark A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Many different formalisms exist for computing the phase of a matter-wave interferometer. However, it can be challenging to develop physical intuition about what a particular interferometer is actually measuring or about whether a given classical measurement provides equivalent information. Here we investigate the physical content of the interferometer phase through a series of thought experiments. In low-order potentials, a matter-wave interferometer with a single internal state provides the same information as a sum of position measurements of a classical test object. In high-order potentials, the interferometer phase becomes decoupled from the motion of the interferometer arms, and the phase contains information that cannot be obtained by any set of position measurements on the interferometer trajectory. This phase shift in a high-order potential fundamentally distinguishes matter-wave interferometers from classical measuring devices.
description: v2, 24 pages, 5 figures
The life-cycle hypothesis, fiscal policy and social security
Creators: name: Jappelli, Tullio
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Consumption, Fiscal Policy, Life Cycle, Policy, Saving, Social Security, Wealth
subject: D91, E21, E62, H55

description: The paper reviews some of the most important results of the Life Cycle Hypothesis (LCH) for understanding individual and aggregate saving behaviour. It then turns to the implications for fiscal policy and social security, highlighting Modigliani’s seminal contributions. Over time competing theories have emerged, and some empirical findings are difficult to reconcile with LCH; chiefly aspects of inertia, myopia, and irrational behaviour documented by the recent behavioural literature. But the LCH is still the benchmark model to think about individual saving decisions, the aggregate evidence and policy issues. JEL Codes: D91, E21, E62, H55
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Macroeconomic theory and monetary policy: the contributions of Franco Modigliani and the ongoing debate
Creators: name: Papademos, Lucas
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Macroeconomics, Monetary Policy, Monetary, Policy
subject: B22, B31, E52

description: The paper reviews some of the most important results of the LCH for understanding individual and aggregate saving behaviour. It then turns to the implications for fiscal policy and social security, highlighting Modigliani's seminal contributions. Over time competing theories have emerged, and some empirical findings are difficult to reconcile with LCH; chiefly aspects of inertia, myopia, and irrational behaviour documented by the recent behavioural literature. But the LCH is still the benchmark model to think about individual saving decisions, the aggregate evidence and policy issues. JEL Codes: B22, B31, E52
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
A reappraisal of Modgliani's finance theories
Creators: name: Cozzi, Terenzio
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Finance
subject: B21, B22, B31, G00

description: The paper examines the influence of Modigliani's contributions to the theory of finance. As for the term structure of interest rates, the preferred habitat theory, had a mixed fortune: it was utilized by financial managers for a rather long time, before being discarded in the 1980s and, perhaps, being somewhat resumed in our days. The Modigliani-Miller theorem is considered as a landmark in finance theory, even if the controversies over both its assumptions and conclusions had indeed been very strong. By contrast, financial managers completely disregarded the thesis of an irrational undervaluation of stocks in inflationary periods. But most economists appreciate the proof that, for rather long periods, the market can be inefficient in channelling the resources towards the most productive utilizations. JEL Codes: B21, B22, B31, G00
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Quantum Black Holes: the Event Horizon as a Fuzzy Sphere
Creators: name: Dolan, Brian P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Modeling the event horizon of a black hole by a fuzzy sphere it is shown that in the classical limit, for large astrophysical black-holes, the event horizon looks locally like a non-commutative plane with non-commutative parameter dictated by the Planck length. Some suggestions in the literature concerning black hole mass spectra are used to derive a formula for the mass spectrum of quantum black holes in terms of four integers which define the area, angular momentum, electric and magnetic charge of the black hole. We also suggest how the classical bounds on extremal black holes might be modified in the quantum theory.
description: 14 pages, typeset in LaTeX; an error corrected, and abstract modified accordingly, some new references added
The Modigliani-Miller theorems: a cornerstone of finance
Creators: name: Pagano, Marco
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Finance
subject: G00

description: The Modigliani-Miller (MM) theorems are a cornerstone of finance for two reasons. The first is substantive and it stems from their nature of "irrelevance propositions": by providing a crystal-clear benchmark case where capital structure and dividend policy do not affect firm value, by implication these propositions help us understand when these decisions may affect the value of firms, and why. Indeed, the entire subsequent development of corporate finance can be described essentially as exploring the consequences of relaxing the MM assumptions. The second reason for the seminal importance of MM is methodological, by relying on an arbitrage argument, they set a precedent not only within the realm of corporate finance but also (and even more importantly) within that of asset pricing. JEL Codes: G00
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
On osp(M|2n) integrable open spin chains
Creators: name: Arnaudon, Daniel
name: Avan, Jean
name: Crampe, Nicolas
name: Doikou, Anastasia
name: Frappat, Luc
name: Ragoucy, Eric
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider open spin chains based on osp(m|2n) Yangians. We solve the reflection equations for some classes of reflection matrices, including the diagonal ones. Having then integrable open spin chains, we write the analytical Bethe Ansatz equations. More details and references can be found in [1,2].
description: Talk given by DA at ISQG13, Prague, June 2004 ; to appear in Czech. J. Phys
Economic analysis of unregulated and illegal fishing in Raja Ampat, Indonesia
Creators: name: Bailey, Megan
Publisher: name: University of British Columbia
Year: 2011

description: In an era of declining fish stocks and habitat degradation, ecosystem-based management (EBM) is considered an alternative approach to ensure the sustainability of marine resource use. EBM explicitly acknowledges humans and ecosystems in the management of fisheries. This thesis provides two economic analyses to be incorporated into an E BM plan being developed by the Raja Ampat regency government, in Indonesia. Specifically, these analyses address the issues of unregulated and illegal fisheries in the regency. The coastal environment that supports regency inhabitants is considered the world's most biodiverse marine area, but is threatened due to population and poverty pressures faced by those who depend on its resources. In order to manage fisheries effectively, it is important for the regency to have primary data and catch and profitability estimates for the fisheries currently in operation. Furthermore, the use of destructive fishing gears, such as explosives and cyanide, is threatening both the commercial and the artisanal fishing sectors. To provide the regency with data regarding an unregulated anchovy fishery operating in Kabui Bay, fisher interviews were carried out. Monte Carlo simulations were run using interview results to provide estimated catch and profitability for 2006. Results suggest that this unregulated fishery removed about 3,500 tonnes of anchovy, worth US $1.6 million, in 2006. The fishery appears to be quite profitable, with anchovy fishers making almost twice as much as the average fisher in Raja Ampat. The perverse incentives of destructive fishing in the artisanal sector are examined by applying principal-agent theory to analyze how the probability of detecting illegal fishers, and the fine owed by apprehended fishers, can be used to decrease the occurrence of illegal fishing. The elimination of blast fishing could result in a stable snapper stock biomass and an estimated increase in net present value from the fishery of US $3.68 million over the next 45 years. However, the high profitability of the cyanide fishery targeting groupers appears to be a substantial barrier to the elimination of this gear, and to a large increase in economic value of a completely legal fishery.
Franco Modigliani
Creators: name: Fazio, Antonio
Publisher: name: PSL Quarterly Review
Year: 2012
Subjects: subject: Franco Modigliani, Accademia dei Lincei
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
description: PSL Quarterly Review, VOL 58, NN. 233-234 (2005)
Spectral Distribution Complexity of the Surface Fibrillatory Waves Predicts Post-Catheter Ablation Relapse in Persistent Atrial Fibrillation
Creators: name: Escribano, Pilar
name: Rodenas, Juan
name: Garcia, Manuel
name: Arias, Miguel A
name: Rieta, Jose J
name: Alcaraz, Raul
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: As for most of cardiac arrhythmias, atrial fibrillation (AF) is primarily treated by catheter ablation (CA). However, the mid-term recurrence rate of this procedure in persistent AF patients is still limited and the preoperative prediction of its outcome is clinically interesting to select candidates who could benefit the most from the intervention. This context encouraged the study of C0 complexity as a novel predictor, because it estimates organization of the power spectral distribution (PSD) of the fibrillatory waves (f-waves). For that purpose, the PSD was divided into two divergent components using a threshold, theta, which was considered by multiplying the mean value of the PSD by a factor, alpha, ranging between 1.5 and 2.5. On a database of 74 patients, the values of C0 complexity computed for all alpha factors reported statistically significant differences between the patients who maintained sinus rhythm and those who relapsed to AF after a follow-up of 9 months. They also showed higher values of sensitivity (Se), specificity (Sp), and accuracy (Acc) than the well known predictors of the dominant frequency (DF) and f-wave amplitude. Moreover, the combination of the DF and the C0 complexity computed with alpha = 2, via a decision tree, improved classification until values of Se, Sp and Acc of 75.33, 77.33 and 76.58%, respectively. These results manifests the relevance of the f-wave PSD distribution to anticipate CA outcome in persistent AF patients.
Seismic imaging of variable water layer sound speed in Rockall Trough, NE Atlantic and implications for seismic surveying in deep water
Creators: name: S.M. Jones
name: C. Sutton
name: R.J.J. Hardy
name: D. Hardy
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Poster presented for Seismic imaging of variable water layer sound speed in Rockall Trough, NE Atlantic and implications for seismic surveying in deep water
Properties and distribution of lower crustal bodies on the mid-Norwegian margin
Creators: name: R.F. Reynisson
name: J. Ebbing
name: E. Lundin
name: P.T. Osmundsen
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Poster presented for Properties and distribution of lower crustal bodies on the mid-Norwegian margin.
The economic dimensions of the new European balances
Creators: name: PRODI, R.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: Eastern European transition, European economic performance
subject: F15, P20

description: The recent economic and political reforms that have occurred in Eastern Europe have brought with them a realisation that the economic balance in Europe is changing, and that a great deal of industrial investment will be required. Germany will have a key role to play in the new liberated East Europe; however, many economists are very worried that Germany's own economic performance may suffer as a result of taking on these new responsibilities. Both the positive, and possible negative, aspects of these changes are discussed in this article. JEL: F15, P20
description: PSL Quarterly Review, V. 43, N. 173 (1990)
title: Moving architecture
Creators: name: Greil, Alexander
Publisher: name: TU Wien
Year: 2014
Subjects: subject: Moving architecture

description: Architektur kann nicht etwas fixiertes sein, wenn sie laufenden Änderungen unterworfen ist. Die Anforderungen an einen Entwurf können sich während der Nutzung beispielsweise durch einem Wechsel der Funktionen ändern. Dies legt den Gedanken nahe, dass eine flexiblere oder beweglichere Architektur die Lösung für diese Aufgabe ist. Deshalb versucht diese Arbeit, mit Hilfe der Computerprogrammierung, eine neue Generation beweglicher Architektur zu entwickeln. Beginnend mit Beschreibungen von gebauten oder konzeptuellen Beispielen, wird ein Themenbereich gespannt, der auf die Programmierung eines Tools hinausläuft, mit welchem bewegliche Architektur nicht nur geplant, sondern, im Sinne der Kybernetik, auch gesteuert wird. Es wird ein Programmkonzept entwickelt, welches im Anschluss in der Entwicklungsumgebung "Processing" umgesetzt wird. Dabei werden gängige Programmierkonstrukte verwendet, welche ebenfalls kurz erklärt werden. Die vorliegende Arbeit versteht sich als Vermittler, der das Potential der Computerprogrammierung in der Architektur und im Entwurfsprozess zeigen soll.
description: Architecture can not be something fixed if it is subject to continous change. The requirements for a design can change during his usage, maybe because of a change of functions. This suggests the idea that a more flexible or moveable architecture is the solution for this task. Therefore this work tries to develop a new generation of moveable architecture, using computer programming. Starting with descriptions of built or conceptual examples, the subject area comes to the programming of a tool, in which moving architecture can not only get planned, but is also, within the meaning of cybernetics, controlled by this tool. A concept for a computer program is developed, which is implemented in the development environment "Processing" afterwards. Common programming constructs are used, which are briefly explained. This thesis is understood as a mediator for showing the potential of computer programming in architecture and the process of design.
Mott scattering of polarized electrons in a strong laser field
Creators: name: Manaut, B.
name: Taj, S.
name: Attaourti, Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present analytical and numerical results of the relativistic calculation of the transition matrix element $S_{fi}$ and differential cross section for Mott scattering of initially polarized Dirac particles (electrons) in the presence of strong laser field with linear polarization. We use exact Dirac-Volkov wave functions to describe the dressed electrons and the collision process is treated in the first Born approximation. The influence of the laser field on the degree of polarization of the scattered electron is reported.
description: 12 pages, 11 figures, Revtex
Establishing Awareness through Pointing Gestures during Collaborative Decision-Making in a Wall-Display Environment
Creators: name: Maquil, Valérie
name: Anastasiou, Dimitra
name: Afkari, Hoorieh
name: Coppens, Adrien
name: Hermen, Johannes
name: Schwartz, Lou
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Sharing a physical environment, such as that of a wall-display, facilitates gaining awareness of others' actions and intentions, thereby bringing benefits for collaboration. Previous studies have provided first insights on awareness in the context of tabletops or smaller vertical displays. This paper seeks to advance the current understanding on how users share awareness information in wall-display environments and focusses on mid-air pointing gestures as a foundational part of communication. We present a scenario dealing with the organization of medical supply chains in crisis situations, and report on the results of a user study with 24 users, split into 6 groups of 4, performing several tasks. We investigate pointing gestures and identify three subtypes used as awareness cues during face-to-face collaboration: narrative pointing, loose pointing, and sharp pointing. Our observations show that reliance on gesture subtypes varies across participants and groups, and that sometimes vague pointing is sufficient to support verbal negotiations.
description: \c{opyright} Authors | ACM 2023. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in the CHI'23 proceedings, http://dx.doi.org/10.1145/3544549.3585830
Two types of monetary policy
Creators: name: DOW, J.C.R.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: Monetary policy, Demand management approach, Monetary targets approach
subject: E52

description: The article traces the origin, development and effectiveness of two types of monetary policy. These are the 'demand management' approach, which uses monetary instruments as a means of maintaining policy, and the 'monetary targets' approach. The United Kingdom has moved from favouring the latter approach to the former, and the reasons behind this change of attitude are discussed. In addition the experiences of Italian governments and monetary policies are outlined. JEL: E52
description: PSL Quarterly Review, V. 43, N. 173 (1990)
Atmospheric compositions and observability of nitrogen dominated ultra-short period super-Earths
Creators: name: Zilinskas, Mantas
name: Miguel, Yamila
name: Mollière, Paul
name: Tsai, Shang-Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We explore the chemistry and observability of nitrogen dominated atmospheres for ultra-short-period super-Earths. We base the assumption, that super-Earths could have nitrogen filled atmospheres, on observations of 55 Cnc e that favour a scenario with a high-mean-molecular-weight atmosphere. We take Titan's elemental budget as our starting point and using chemical kinetics compute a large range of possible compositions for a hot super-Earth. We use analytical temperature profiles and explore a parameter space spanning orders of magnitude in C/O \& N/O ratios, while always keeping nitrogen the dominant component. We generate synthetic transmission and emission spectra and assess their potential observability with the future James Webb Space Telescope and ARIEL. Our results suggest that HCN is a strong indicator of a high C/O ratio, which is similar to what is found for H-dominated atmospheres. We find that these worlds are likely to possess C/O > 1.0, and that HCN, CN, CO should be the primary molecules to be searched for in thermal emission. For lower temperatures (T < 1500 K), we additionally find NH3 in high N/O ratio cases, and C2H4, CH4 in low N/O ratio cases to be strong absorbers. Depletion of hydrogen in such atmospheres would make CN, CO and NO exceptionally prominent molecules to look for in the 0.6 - 5.0 $μ$m range. Our models show that the upcoming JWST and ARIEL missions will be able to distinguish atmospheric compositions of ultra-short period super-Earths with unprecedented confidence.
description: Accepted for publication MNRAS
Black Hole Dynamics in Power-law based Metric $f(R)$ Gravity
Creators: name: Pati, Suraj Kumar
name: Nayak, Bibekananda
name: Singh, Lambodar Prasad
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we use power-law cosmology to investigate the evolution of black holes within the context of metric $f(R)$ gravity satisfying the conditions provided by Starobinsky model. In our study, it is observed that presently accelerated expansion of the universe can be suitably explained by this integrated model without the need for dark energy. We also found that mass of a black hole decreases by absorbing surroundings energy-matter due to modification of gravity and more the accretion rate more is mass loss. Particularly the black holes, whose formation masses are nearly $10^{20}$ gm and above, are evaporated at a particular time irrespective of their formation mass. Again our analysis reveals that the maximum mass of a black hole supported by metric $f(R)$ gravity is $10^{12} M_{\odot}$, where $M_{\odot}$ represents the solar mass.
description: 10 pages, 2 figures
Study of the structural and electronic properties of semimetallic InBi: first-principles calculation of compound with peculiarities of the electronic structure
Creators: name: Pozhyvatenko, V. V.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic properties as well as the structural characteristics and their pressure dependence of the semi-metallic $B10$-structured compound $\mathrm{InBi}$ were investigated. It is found that the structural values of $\mathrm{InBi}$ calculated in the first-principles calculations reproduce the experimental values worse than those for other heavy III-V pnictides, which are characterized by cubic $B3$ and $B2$ structures, as well as for IV-VI compounds $\mathrm{SnO}$ and $\mathrm{PbO}$ having the same $B10$ structure. The low accuracy of the first-principles calculations is a consequence of the peculiarities of the band structure inherent to $\mathrm{InBi}$ and not observed in all the other above-mentioned compounds. To improve the agreement with the experiment, it is proposed to take into account the distortion of the compensated half-metal condition at the highly symmetric points of the Brillouin zone, where the electronic and hole pockets are located.
description: 13 pages, 9 figures, 4 tables
title: Compilation of the best regional 3D clustering model for forecasting of PV electricity generation respecting the geographical and climatological specifics of the location of PV installations : (on the example of Styria/Austria)
Creators: name: Leonhardt, Michaela
Publisher: name: TU Wien
Year: 2014
Subjects: subject: PV
subject: photovoltaic
subject: PV electricity generation
subject: clustering
subject: forecasting
subject: prediction models

description: Assuming that the number of PV installations in Austria will further increase, a well performed area forecast of PV electricity generation will gain in importance especially for the grid operating companies. To create the forecast as precise as possible contributes to a successful integration of higher amount of PV into the electricity system. The main focus of this master thesis is to compile the best 3D regional clustering model for forecasting of PV electricity generation based on the geographical position of the PV installations and reflecting the micro-climatological regional specifics, and to evaluate the potential for increasing the accuracy of PV electricity generation forecast in the future. This is applied on the example of the federal state of Styria. Due to its mountainous landscape, defining the clusters by the height above mean sea level, is assumed to be the key-criteria. Particularly, this is connected to various micro-climatic zones and reflects the important input factor characteristics, which influence the PV electricity output, like the intensity of global horizontal irradiance, ambient temperature, frequency of cloud cover, fog and inversion. To be able to evaluate the influencing factors and their interactions, various prediction models are defined and proved. The forecast is based on the regressions analysis and the statistical MARS-model (multivariate adaptive regression splines). The criteria of a normalised Root Mean Square Error (nRMSE) referring to installed capacity (kWp) is used for verification of the accuracy of the prediction models. Finally, the best results are achieved if the region is divided in two (poss. three) clusters according to the position of the PV systems above sea level defined by 500m (poss. by 1.000m in addition) and overall 6 representing weather measuring stations (providing the forecasted values of global irradiance and ambient temperature) are taken into account. The results confirmed that the idea of finer clustering, respecting the geographical and climatological specifics of the 3D location of PV installations, opens the door to an improvement of the forecast accuracy in the future. With an increasing number of clusters, necessarily the number of representative weather measuring stations has to be increased as well. Due to the additional meteorological information, the local variations are reflected more precisely, which leads to more exact forecasts results.
Identificación de las principales fuentes de financiación empleadas por la empresa social en la actualidad
Creators: name: López-Cózar, C.
name: Priede, T.
name: López-Cózar, C.
name: Priede, T.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Financial Economics
subject: Cooperativas
subject: emprendimiento social
subject: financiación
subject: método Delphi

description: El presente trabajo analiza la relación de las empresas sociales con los nuevos instrumentos financieros disponibles actualmente en el mercado. Para ello, mediante la aplicación del método Delphi, se realiza un estudio de la percepción, facilidad de acceso y valoración que los emprendedores sociales realizan acerca de los mecanismos de financiación alternativa, así como la identificación de las principales fuentes de financiación realmente utilizadas por éstos. Los resultados sugieren que, además de los recursos propios, puede resultar interesante utilizar el crowdfunding, pues es considerado una alternativa factible que se adapta a las peculiares necesidades de este tipo de entidades.
Capital gains, pension funds and the low saving ratio in the United States
Creators: name: STEINDL, J.
Publisher: name: PSL Quarterly Review
Year: 2013
Subjects: subject: Savings, United States, Consumerism
subject: E21

description: The United States has always been regarded as a consumer-oriented society. Statistics compiled for the 1980s demonstrate that the United States has a very low savings ratio. Two major factors are identified as causing this, the federal and state tax treatment of loan interest and the high volume of consumer credit. There are dangers associated with this short-term perspective of instant consumerism, and institutions dealing in long-term financial management (pension/insurance companies) have particular problems in this respect. JEL: E21
description: PSL Quarterly Review, V. 43, N. 173 (1990)
title: Renewable energy mini-grids as the least-cost energy solution for the electrification of off-grid areas : a case study on island electrification in the Philippines
Creators: name: Elbling, Elmar
Publisher: name: TU Wien
Year: 2014
Subjects: subject: mini-grid
subject: off-grid
subject: island electrification
subject: least-cost solution
subject: Philippines

description: The Philippines is an island archipelago where most of the inhabited islands currently enjoy only limited hours of electricity, generated by unsustainable, expensive and environmentally hazardous diesel powered plants. The core objective of this thesis is to prove that energizing islands in the Philippines through - renewable energy sources - will in the long run be more cost efficient than power generation through conventional diesel power plants. This thesis analyses current government policies and objectives in rural electrification in the Philippines; it also describes the legal framework and incentives available, and feasible business models that enable implementation of hybrid renewable energy mini-grids. The current electrification situation and key stakeholders, specifically in rural electrification and available renewable energy resources in the Philippines, are assessed and put into context with the goal of accelerated implemention of renewable energy mini-grids. An actual case study for the electrification of one specific remote island, using the energy modeling software HOMER, has been conducted. The two HOMER simulations, applying two different sets of future load assumptions, both prove that power generation through renewable energy lowers the cost of generation in the specific island. This thesis shall also contribute to wider implementation of renewable energy power generation systems in the Philippines through contributing to a thorough understanding of the government policies supporting rural electrification, presentation of feasible business models and the evidence that electrification through renewable energy is the least-cost electrification option available.
title: Sustainable mobility : comparison of alternative automotive technologies from environmental and economic point of view
Creators: name: Bogdanović, Stefan
Publisher: name: TU Wien
Year: 2014
Subjects: subject: Renewable energy
subject: Sustainable Mobility
subject: Fuel Cells
subject: Biodiesel
subject: Electric vehicle

description: The core objective of this work is to create comprehensive comparison, research and evaluation of most significant models of sustainable mobility, Hydrogen, Biodiesel and Electric energy as road transportation fuel sources looked over three most important aspects: Ecology and Environment, Technology and Economy. A core question stems from the objective statement: Will it make any sense to proceed with further research and development of these fuels and technologies despite higher costs, and what is the cost of our damaged environment? In order to answer this question along with numerous side questions which emerged during my research on this topic, numerous available data, previous studies and expert and professional literature as well as couple personal technology tests and evaluations have been used. Finally, it was concluded that even the smallest step in the direction of sustainable mobility has a significant impact on our environment and our future. Further developments of advanced, more sustainable technologies as well as alternative fuels are major points for future. Legal regulations and smart filling and charging station networks are shown to be equally important towards mass acceptance of such sustainable mobility concepts.
Contrastes no parametricos de multiplos fundamentales frente a multiplos bursatiles en empresas alimentarias europeas
Creators: name: Vidal, R.
name: Ribal, J.
name: Vidal, R.
name: Ribal, J.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Contrastes no paramétricos
subject: finanzas corporativas
subject: múltiplos de valor
subject: sector alimentario
subject: valoración fundamental de empresas

description: El sector alimentario está formado principalmente por PYMEs por lo que los múltiplos de valoración son escasos. En este trabajo se aplican modelos de valoración fundamental a las empresas alimentarias cotizadas en mercados secundarios europeos, para contrastar si los múltiplos obtenidos de valores fundamentales difieren significativamente de los múltiplos bursátiles, y saber así si estos modelos podrían ser empleados en PYMEs. Dado que los múltiplos no se distribuyen normalmente, se emplean contrastes estadísticos de naturaleza no paramétrica que muestran que entre un 40 y un 60 % de las veces los múltiplos fundamentales no difieren de los múltiplos bursátiles.
Sedimentology and Sequence Stratigraphy of the Hugin Formation, Quadrant 15, Norwegian Sector, South Viking Graben
Creators: name: R.L. Kieft
name: C.A.-L. Jackson
name: G.J. Hampson
name: E. Larsen
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Poster presented for Sedimentology and Sequence Stratigraphy of the Hugin Formation, Quadrant 15, Norwegian Sector, South Viking Graben