Search results for "Logit"
showing 10 items of 265 documents
From intra-oceanic subduction to arc accretion and arc-continent collision: Insights from the structural evolution of the Río San Juan metamorphic co…
2013
The Río San Juan metamorphic complex exposes a segment of a high-pressure subduction-accretionary complex built during Caribbean island arc-North America continental margin convergence. It is composed of accreted arc- and oceanic-derived metaigneous rocks, serpentinized peridotites and minor metasediments forming a structural pile. Combined detailed mapping, structural and metamorphic analysis, and geochronology show that the deformation can be divided into five main events (D1eD5). An early subduction-related D1 deformation and M1 metamorphism produced greenschist (mafic rocks of the Gaspar Hernández peridotite-tectonite), blueschist and eclogite (metamafic blocks in the Jagua Clara mélang…
Properties of methyl radical trapped in amorphous SiO2 and in natural SiO2-clathrate Melanophlogite
2013
Abstract We report an experimental investigation by electron paramagnetic resonance (EPR) on methyl radical (CH3 ) observed in γ-ray irradiated high-purity amorphous silicon dioxide (a-SiO2) and in a polycrystalline sample of Melanophlogite, a rare natural form of SiO2-clathrate. From the analysis of the EPR spectra we estimate the correlation time of the hindered rotational motion of CH3 molecules at T = 77 K in the two different materials. This physical quantity gives a quantitative measure of the freedom of motion of CH3 molecules trapped in the two solid systems, putting forward relevant information on the properties of the cavities/interstices in which the radicals are confined. In par…
Is It Considered Violence? The Acceptability of Physical Punishment of Children in Europe
2008
This study analyzes correlates of the acceptability of physical punishment of children in Europe. The design was a three-level ordinal logistic regression of 10,812 people nested within 208 localities (cities), nested within 14 countries of the European Union. Results showed that higher levels of acceptability were reported by men, the older, the less educated, and those who perceived that violence against children was less frequent in their own country. At the country level, the existence of laws prohibiting physical punishment of children as well as a lower number of child maltreatment deaths were significantly associated with lower levels of acceptability of physical punishment of childr…
The importance of the inland leg of containerised maritime shipments: An analysis of modal choice determinants in Spain
2011
Abstract While most of the studies that address competition between road and rail transport focus on national or international non-maritime shipments, there is practically no empirical evidence on the modal choice determinants of the inland leg of maritime shipments. This paper intends to fill that gap by estimating a modal choice model between road and rail transport on the inland leg of Spanish containerised maritime freight shipments, using a mixed logit model and stated preference techniques. The results obtained confirm the vital role that frequency plays in the relative competitiveness of rail transport and also provide subjective values of transport attributes that are deemed essenti…
Testing the group polarization hypothesis by using logit models
2002
This paper focuses on methodological aspects of group polarization research and has two well-defined parts. The first part presents a methodological overview of group polarization research together with an examination of the inadequacy, under certain circumstances, of the traditional parametric approach usually used to test this phenomenon based on pre-test/post-test means comparison across groups. It is shown that this approach will produce masks effects when groups are heterogeneous with regard to the observed change from pre-test to post-test. The second part suggests an alternative methodological approach based on logit models for the analysis of contingency tables from a categorization…
Potential demand and cost-benefit analysis of electric cars
2004
In this study an analysis of electric family car performances is carried out. In particular, the aim of this research is to appraise the possibility of introducing electric cars in urban mobility and the evaluation of its economic feasibility. First of all, we determined the potential electric car demand, which was forecasted using a stated preference (SP) analysis. The survey was carried out at the University of Palermo considering a particular target of consumer: ‘the hybrid household’. A logit demand model was calibrated using the SP technique to model the choice between the electric car and the conventional one. In the second part of the work, the economic feasibility of the electric ca…
Understanding the consumption of plant-based meat alternatives and the role of health-related aspects. A study of the Italian market
2023
One possible solution to address some of the current health and environmental challenges we are facing is to choose plant-based meat alternatives (PBMAs). However, from the literature, the role of PBMA products in the consumer’s diet and whether they are a substitute for red meat consumption or if they only represent an enrichment function is not clear. Moreover, little is known about how health-related aspects affect consumer choices. This study tries to understand the role of PBMAs in consumption habits and the effects of health-related aspects in PBMA consumption. The results show that PBMA consumption occurs in substitution to red meat, and it is associated mainly with healthy and susta…
Dimensioni di benessere tra le famiglie italiane. Un’analisi sui dati EU-SILC 2005
2009
Il presente lavoro, utilizzando le informazioni dell’indagine EU-SILC (European Statistics on Income and Living Conditions) del 2005 su 22.032 famiglie italiane, si pone come obiettivo l’analisi e la misura del benessere multidimensionale. Nel paragrafo 2 sono riportate le ipotesi teoriche, mentre nel paragrafo 3 è riportata l’analisi dei risultati e alcune considerazioni conclusive.
Modelling mode choice for freight transport using advanced choice experiments
2015
Abstract In this paper we use advanced choice modelling techniques to analyse demand for freight transport in a context of modal choice. To this end, a stated preference (SP) survey was conducted in order to estimate freight shipper preferences for the main attributes that define the service offered by the different transport modes. From a methodological point of view, we focus on two critical issues in the construction of efficient choice experiments. Firstly, in obtaining good quality prior information about the parameters; and secondly, in the improved quality of the experimental data by tailoring a specific efficient design for every respondent in the sample. With these data, different …
Puhutaan bloggaamisesta : blogipuhe tekstilajia rakentamassa
2016
Tarkastelen tutkielmassani lifestyleblogien metalingvististä diskurssia eli kielestä puhumista, jota kutsun blogipuheeksi. Blogipuheella tarkoitan blogissa esiintyvää puhetta, jossa kirjoittaja määrit-telee ja merkityksellistää omia motiivejaan ja ajatuksiaan blogigenrestä ja bloggaamisesta rakenta-en samalla tekstilajiin liittyviä yhteisiä normeja. Tavoitteenani on selvittää, miten bloggaajat pu-huvat blogeista ja bloggaamisesta ja millaisia merkityksiä he niille antavat. Tutkimuksessani poh-din myös sitä, millaiseksi blogigenre tutkimustulosteni pohjalta hahmottuu. Tutkimuskysymykseni ovat seuraavat: 1) Miten bloggaajat puhuvat blogeista? 2) Millaisia normeja blogiin tekstilajina rakentuu…