To Denominate and Characterize in the Context of Information Systems

The aim of the paper is to discuss the distinction between characterisation (classification) and denomination (naming, identifying) in the context of information systems (IS). The paper has a special focus on the design of identifiers, i.e. terms used for identifying individual phenomenon. The reason for this is that the distinction between denomination and characterisation is especially important when designing identifiers. Identifiers e.g. article numbers, telephone numbers, e-mail addresses and personal numbers, constitute an important part of the information infrastructure of companies and society as a whole, and therefore it is crucial that these terms are well designed. The paper illustrates that who designs, assigns and withdraws electronic identifiers is a significant economic and policy issue both within companies and for society as a whole, with farther reaching consequences than often perceived at first glanc

Students’ understanding of the function-derivative relationship when learning economic concepts

The aim of this study is to characterise students’ understanding of the function-derivative relationship when learning economic concepts. To this end, we use a fuzzy metric (Chang 1968) to identify the development of economic concept understanding that is defined by the function-derivative relationship. The results indicate that the understanding of these economic concepts is linked to students’ capacity to perform conversions and treatments between the algebraic and graphic registers of the function-derivative relationship when extracting the economic meaning of concavity/convexity in graphs of functions using the second derivative

Hawking radiation for a Proca field in D-dimensions

We study the wave equation of a massive vector boson in the background of a D-dimensional Schwarzschild black hole. The mass term introduces a coupling between two physical degrees of freedom of the field, and we solve the resulting system of ODEs numerically, without decoupling. We show how to define decoupled transmission factors from an S-matrix and compute them for various modes, masses and space-time dimensions. The mass term lifts the degeneracy between transverse modes, in D=4, and excites the longitudinal modes, in particular the s-wave. Moreover, it increases the contribution of waves with larger angular momentum, which can be dominant at intermediate energies. The transmission factors are then used to obtain the Hawking fluxes in this channel. Our results alert for the importance of modelling the longitudinal modes correctly, instead of treating them as decoupled scalars as in current black hole event generators; thus they can be used to improve such generators for phenomenological studies of TeV gravity scenarios.Comment: 21 pages, 3 figure

Maintaining price stability under free-floating: a fearless way out of the corner?

The behaviour of the exchange rate under a floating exchange rate regime for a small open economy with perfect capital mobility may appear like a managed float or even a firmer peg. We present a canonical new neo-classical synthesis open economy model where the central bank follows a strategy directed at maintaining price stability. It is shown that the behaviour of the exchange rate depends on the structure of the economy and on the nature of the relevant shocks. In the case of very open economies the exchange rate will look quasi-fixed in response to shocks stemming from the international capital markets. It is also shown that the joined endogeneity of the interest rate and the exchange rate has important implications for the empirical testing of uncovered interest rate parity. JEL Classification: E58, E63, F41flexible exchange rates, managed floating, price stability, small open economy, uncovered interest rate parity

Applying a Fuzzy Analytic Hierarchy Process to Demand Considerations of Households Opting for Mortgage Loans

The need for high economic development across the entire globe and Sub-Saharan Africa in particular has led to the awareness of the need to increase the housing base across the continent. The astronomical increase in population and urbanisation and its associated problems of accommodation call for the need to provide good housing for the people of Ghana; the provision of which could depends largely on the availability of mortgage facilities. However, obtaining the right mortgage is as crucial as obtaining the right home, yet buyers seemingly do not invest as much time and effort in a mortgage search as in house searches. It is against this backdrop that this study investigates factors considered by households before acquiring mortgage loans. A questionnaire was administered within the Accra metropolis, the area of Ghana with the most mortgage loan providers. We employed the fuzzy analytic hierarchy process (FAHP) to analyze the thought processes of households when making their decisions on acquiring a mortgage loan. The results indicated that factors considered by households when opting for a mortgage loan, ordered based on their degree of importance, were "Employment", "Housing Market Conditions", "Personal Factors", "Economic Factors", "Mortgage Lender Policy", "Housing Alternatives", "Knowledge", and "Social Factors". The weights of the first four factors were as high as 70.99% (Buckley’s method) and 69.70% (Chang’s method). These four items, have the most impact on household demand considerations when opting for a mortgage loan. If these factors are significantly improved, then, they can have a positive microeconomic impact on actual households demand for mortgage loans, in turn making the mortgage market a lucrative business

Applying a Fuzzy Analytic Hierarchy Process to Demand Considerations of Households Opting for Mortgage Loans

The need for high economic development across the entire globe and Sub-Saharan Africa in particular has led to the awareness of the need to increase the housing base across the continent. The astronomical increase in population and urbanisation and its associated problems of accommodation call for the need to provide good housing for the people of Ghana; the provision of which could depends largely on the availability of mortgage facilities. However, obtaining the right mortgage is as crucial as obtaining the right home, yet buyers seemingly do not invest as much time and effort in a mortgage search as in house searches. It is against this backdrop that this study investigates factors considered by households before acquiring mortgage loans. A questionnaire was administered within the Accra metropolis, the area of Ghana with the most mortgage loan providers. We employed the fuzzy analytic hierarchy process (FAHP) to analyze the thought processes of households when making their decisions on acquiring a mortgage loan. The results indicated that factors considered by households when opting for a mortgage loan, ordered based on their degree of importance, were "Employment", "Housing Market Conditions", "Personal Factors", "Economic Factors", "Mortgage Lender Policy", "Housing Alternatives", "Knowledge", and "Social Factors". The weights of the first four factors were as high as 70.99% (Buckley’s method) and 69.70% (Chang’s method). These four items, have the most impact on household demand considerations when opting for a mortgage loan. If these factors are significantly improved, then, they can have a positive microeconomic impact on actual households demand for mortgage loans, in turn making the mortgage market a lucrative business

Chapter Il rilievo SAPR delle residenze reali di vacanza in Albania

The 43rd UID conference, held in Genova, takes up the theme of ‘Dialogues’ as practice and debate on many fundamental topics in our social life, especially in these complex and not yet resolved times. The city of Genova offers the opportunity to ponder on the value of comparison and on the possibilities for the community, naturally focused on the aspects that concern us, as professors, researchers, disseminators of knowledge, or on all the possibile meanings of the discipline of representation and its dialogue with ‘others’, which we have broadly catalogued in three macro areas: History, Semiotics, Science / Technology. Therefore, “dialogue” as a profitable exchange based on a common language, without which it is impossible to comprehend and understand one another; and the graphic sign that connotes the conference is the precise transcription of this concept: the title ‘translated’ into signs, derived from the visual alphabet designed for the visual identity of the UID since 2017. There are many topics which refer to three macro sessions: - Witnessing (signs and history) - Communicating (signs and semiotics) - Experimenting (signs and sciences) Thanks to the different points of view, an exceptional resource of our disciplinary area, we want to try to outline the prevailing theoretical-operational synergies, the collaborative lines of an instrumental nature, the recent updates of the repertoires of images that attest and nourish the relations among representation, history, semiotics, sciences

Interpreting the Contemporary Metropolis: Notes on the Urban Debate and on Ignasi Solà-Morales

The theory of urbanism faces the difficult task of struggling to make acknowledgeable the complexity of the metropolitan form. In this sense, the legacy of the recently diseased history researcher and architecture theorist Ignási Sola-Morales arises as a sharp, generous and open perspective. Besides an apparent sense of enigma, his work has the genuine capacity of describing the cartography the metropolis and its form in its contemporary complexity. Being a teacher at the COAC (Cataluña’s college of architects) allowed him to draw one of the most remarkable and sharp theoretical cartographies of the contemporaneous condition of the metropolitan architecture. A complex line of thought towards architecture being born from a cross from artistic and philosophical ideas, capable of causing breaches on the architectural culture. His writings correspond, in a certain way, to a selection of “categories” on which to lay the provisory interpretations of a contemporary metropolis and its form that is, in his own words, multiple, non convergent and of an instable shape arising from the crystallization of various forces. From all that, the outcome is a complex system united, as far as I’m concerned, by the permanent generosity of proposing to romantically rise above the bizarreness of a late-capitalism, post-historical world. In this paper we intend to show how the work of Ignási Sola Morales presents, in a generous, sharp and open way besides all the apparent enigma, the genuine capacity of cartographing the city and its form in all its contemporaneous complexity