Search results for "roe"

Operational and financial performance of Italian airport companies: A dynamic graphical model

2016

Abstract This paper provides evidence on the relationship within a set of financial and operational indicators for Italian airports over 2008–2014. The limited sample size of national and regional airports suggests to apply the penalised RCON ( V , E ) model, which falls within the class of Gaussian graphical models. It provides both estimate and easy way to visualise conditional independence structures of the variables. Moreover, it is particularly suitable for handling longitudinal data where small number of units and huge number of variables have been collected. Findings highlight that a qualified concept of size matters in determining good financial performance. Specifically, increasing…

Port expansion and negative externalities: a willingness to accept approach

2015

Port expansion has been seen as the origin of negative externalities, affecting local residents’ well-being and contributing to the poor public image of ports. In this study, the contingent valuation method is used to estimate the costs borne by local residents as a consequence of the negative externalities derived from the growth of the Port of Valencia (Spain) in the last 30 years. As transport project appraisal has become more complex, this technique complements existing methodologies in this field, such as the social cost benefit analysis and the multicriteria analysis. Given the perceived property rights of families that have been living close to the port for a long time, a willingness…

From electric mobility to hydrogen mobility: current state and possible future expansions

2020

The expansion of electric vehicles in Italy, has already started a few years ago, but some aspects prevent its expansion. Currently users prefer hybrid technology, mainly due to socio-economic factors related to initial investment and anxiety about autonomy. The aim of the document is to understand if the adoption of Fuel Cell technology can be a solution to overcome the problems of environmental pollution. The possibility to be able to use fuel cells to store electricity is very advantageous, especially on charging times that are significantly reduced. Based on the current situation and analyzing the available data, this work reports the current state of electric mobility in Italy and trie…

Another "French paradox": explaining why interest rates to microenterprises dit not increase with the change in French usury legislation

2015

Conventional wisdom indicates that the growth of credit may not materialize if credit rates remain capped by usury laws, as had long been the case in France. France therefore abolished usury ceilings on loans to microenterprise in an effort to increase financing for microentrepreneurs. This should have led to an increase in interest rates and increase in microcredit. However, we do not find any increase in interest rates and this is therefore a paradox. The paper provides a brief literature review and the salient features of the legislative changes in France. It follows this up with a presentation of interest rate movements. The discussion of possible explanations of the paradox includes cl…

TRATAMIENTO ELECTROQUIMICO DE CONTAMINANTES ORGANOCLORADOS ALIFATICOS. ELUCIDACION DE LOS CAMINOS DE REACCION.

2011

Los hidrocarburos alifáticos clorados conjugan toxicidad con una alta estabilidad química, capacidad de bioacumulación y difusión de largo alcance. Los cloroetanos son particularmente ubicuos en la industria y en los productos domésticos, y su introducción en el medio ambiente puede entrañar riesgos para los seres vivos. Actualmente, la USEPA (US Environmental Protection Agency) está llevando a cabo el llamado “Endocrine Disruptor Screening Program (EDSP)”, en el cual tanto el 1,2-dicloroetano (DCA) como el 1,1,2,2-tetracloroetano (TCA) son considerados prioritarios debido a sus efectos potenciales sobre el sistema endocrino. El DCA se encuentra también en la lista de substancias prioritari…

CCDC 234633: Experimental Crystal Structure Determination

2006

Related Article: M.Bujak, A.Budzianowski, A.Katrusiak|2004|Z.Kristallogr.|219|573|doi:10.1524/zkri.219.9.573.44041

Diversità dei procarioti in acque di falda contaminate da solventi clorurati

2021

Deliberation favours social efficiency by making people disregard their relative shares: evidence from USA and India

2017

Groups make decisions on both the production and the distribution of resources. These decisions typically involve a tension between increasing the total level of group resources (i.e. social efficiency) and distributing these resources among group members (i.e. individuals' relative shares). This is the case because the redistribution process may destroy part of the resources, thus resulting in socially inefficient allocations. Here we apply a dual-process approach to understand the cognitive underpinnings of this fundamental tension. We conducted a set of experiments to examine the extent to which different allocation decisions respond to intuition or deliberation. In a newly developed app…

Magic informationally complete POVMs with permutations

2017

Eigenstates of permutation gates are either stabilizer states (for gates in the Pauli group) or magic states, thus allowing universal quantum computation [M. Planat and Rukhsan-Ul-Haq, Preprint 1701.06443]. We show in this paper that a subset of such magic states, when acting on the generalized Pauli group, define (asymmetric) informationally complete POVMs. Such IC-POVMs, investigated in dimensions $2$ to $12$, exhibit simple finite geometries in their projector products and, for dimensions $4$ and $8$ and $9$, relate to two-qubit, three-qubit and two-qutrit contextuality.

Ģimenes ārstu un speciālistu nozīmēto H.pylori eradikācijas shēmu salīdzinājums; to atbilstība vadlīnijām un efektivitāte

2016

Helicobacter pylori kolonizē kuņģa gļotādu vairāk nekā pusei pasaules iedzīvotāju. Pasaules Veselības organizācija ir pasludinājusi H. pylori par 1. grupas kancerogēno vielu. Latvijā H. pylori eradikācijas shēmas nozīmē atbilstoši Māstrihtas IV vadlīnijām. Pētījuma mērķis – salīdzīnāt ģimenes ārstu un speciālistu nozīmēto H. pylori eradikācijas shēmu efektivitāti un atbilstību vadlīnijām. Pētījumā piedalījās 550 pacienti, kuri bija ieradušies uz eradikācijas efektivitātes testa veikšanu. Ģimenes ārsti vadlīnijām atbilstošas eradikācijas shēmas bija nozīmējuši 85,8% gadījumu, bet gastroenterologi – 96,8% gadījumu. Ģimenes ārsti efektīvu H. pylori eradikācijas terapiju nozīmējuši 77,6% gadīju…