Modifying the Rebound: It Depends!: Explaining Mobility Behaviour on the Basis of the German Socio-Economic Panel

We address the empirical question to which extent higher fuel efficiency of cars affects additional travel and how this behavioural aspect is modified by additional variables. The data set used to estimate a theoretical model of the rebound effect covers two panel waves, 1998 and 2003, taken from the German Socio-Economic Panel (SOEP). To take full advantage of the information in the data available, and to avoid problems due to possible selection effects, we estimated an unbalanced two-wave random effects panel model. Our results suggest that in line with the rebound hypothesis, there is a negative effect of car efficiency on the kilometers driven. That is, the lower the fuel consumption, the larger the driven distance. However, contrasting recent empirical literature about the rebound effect in the transportation sector, this seems to be true only for cars with a consumption of more than roughly eight liters per hundred kilometers. In addition, we find a positive diesel effect, which implies that owning a diesel engined car, has a positive effect on the driven distance. Both effects can be interpreted as support for the rebound hypothesis, although not in a simple linear way. Moreover, it can be shown that some "soft" variables such as certain attitudes towards the environment tend to amplify this non-linear rebound effect. Our results support the general direction of the rebound effect on households travel activities. But because of the remaining political relevance of the rebound effect, they also highlight the importance of accounting for additional behavioural variables which tend to influence individual mobility behaviour. Hence, the classical interpretation of the rebound as a linear effect of advances in fuel economy on individual travel has to be questioned.energy demand, rebound effect, panel data analysis

Распознавание изображений лиц на основе кластеризации

This article describes the use of clustering for face recognition image. Clustering was performed using a recurrent neural network used at two stages of the recognition process. The algorithm includes the recognition process itself perform clustering pixel brightness image, calculating image information close proximity and clustering measures to in order to obtain the cluster containing the original similar images

Forschungsbericht zur quantitativen Datenerhebung

Im Sommer 2013 wurde die Verbandsgemeinde Elbe-Havel-Land in Sachsen-Anhalt während des Elbehochwassers nach einem Deichbruch weiträumig überflutet: Häuser, Straßen und Grundstücke wurden zerstört. Der Bericht beleuchtet die Folgen des Hochwassers 2013 und ihre Bewältigung aus Sicht der Bewohner*innen, basierend auf Ergebnissen einer quantitativen Bevölkerungsbefragung drei Jahre nach dem Ereignis. Ausgehend von erlebten materiellen und immateriellen Auswirkungen und dem Stand der Verarbeitung des Ereignisses, wird der Bedarf an Unterstützung aufgezeigt, fehlende Hilfeleistungen identifiziert und die Bedeutung verschiedener Akteure im Verlauf der Katastrophe dargestellt. Dabei zeigen sich insbesondere zeitliche Variationen der Hilfebedarfe und ein anhaltender Bedarf an Unterstützung sowie Nachwirkungen des Ereignisses bis zum Zeitpunkt der Befragung

Research report of the quantitative survey

Im Sommer 2013 wurde die Verbandsgemeinde Elbe-Havel-Land in Sachsen-Anhalt während des Elbehochwassers nach einem Deichbruch weiträumig überflutet: Häuser, Straßen und Grundstücke wurden zerstört. Der Bericht beleuchtet die Folgen des Hochwassers 2013 und ihre Bewältigung aus Sicht der Bewohner*innen, basierend auf Ergebnissen einer quantitativen Bevölkerungsbefragung drei Jahre nach dem Ereignis. Ausgehend von erlebten materiellen und immateriellen Auswirkun-gen und dem Stand der Verarbeitung des Ereignisses, wird der Bedarf an Unterstützung aufgezeigt, fehlende Hilfeleistungen identifiziert und die Bedeutung verschiedener Akteure im Verlauf der Katastrophe dargestellt. Dabei zeigen sich insbesondere zeitliche Variationen der Hilfebedarfe und ein anhaltender Bedarf an Unterstützung sowie Nachwirkungen des Ereignisses bis zum Zeitpunkt der Befragung.During the 2013 European floods, the municipalities of the Elbe-Havel-Land in Saxony-Anhalt were flooded after the water masses of the Elbe River caused a levee to break; houses, streets and plots of land were destroyed. This report, based on the results of a quantitative survey carried out three years after the event, shines light on the effects of the 2013 Flood, and how well, according to the perception of residents, the disaster has been dealt with. Based on personally experienced materi-al and immaterial impacts and on the state of psychological recuperation, we highlight the need for further support needed, identify what kinds of aid have been missing, and illustrate the relative importance of different actors throughout the disaster. The results indicate that the need for assis-tance varies especially with regard to time, that after-effects continued to linger at the time of questioning, and that accordingly there is a continued need for support

A randomised controlled trial of small particle inhaled steroids in refractory eosinophilic asthma (SPIRA)

Background: Some patients with refractory asthma have evidence of uncontrolled eosinophilic inflammation in the distal airways. While traditional formulations of inhaled steroids settle predominantly in the large airways, newer formulations with an extra-fine particle size have a more peripheral pattern of deposition. Specifically treating distal airway inflammation may improve asthma control. Methods: 30 patients with refractory asthma despite high dose inhaled corticosteroids were identified as having persistent airway eosinophilia. Following 2 weeks of prednisolone 30 mg, patients demonstrating an improvement in asthma control were randomised to receive either ciclesonide 320 µg twice daily or placebo in addition to usual maintenance therapy for 8 weeks. The primary outcome measure was sputum eosinophil count at week 8. Alveolar nitric oxide was measured as a marker of distal airway inflammation. Results: There was continued suppression of differential sputum eosinophil counts with ciclesonide (median 2.3%) but not placebo (median 4.5%) though the between-group difference was not significant. When patients who had changed their maintenance prednisolone dose during the trial were excluded the difference between groups was significant (1.4% vs 4.5%, p=0.028). Though alveolar nitric oxide decreased with ciclesonide the value did not reach statistical significance. Conclusions: These data demonstrate that patients with ongoing eosinophilic inflammation are not truly refractory, and that suppression of airway eosinophilia may be maintained with additional inhaled corticosteroid. Further work is needed with a focus on patient-orientated outcome measures such as exacerbation rate, with additional tests of small airway function. Trial registration number NCT01171365. Protocol available at http://www.clinicaltrials.gov

Long-term photometric monitoring of RR Lyr stars in M3

The period-change behaviour of 134 RR Lyrae stars in the globular cluster Messier 3 (M3) is investigated on the ~120-year time base of the photometric observations. The mean period-change rates (\beta \approx 0.01 d Myr^-1) of the subsamples of variables exhibiting the most regular behaviour are in good agreement with theoretical expectations based on Horizontal-Branch stellar evolution models. However, a large fraction of variables show period changes that contradict the evolutionary expectations. Among the 134 stars studied, the period-change behaviour of only 54 variables is regular (constant or linearly changing), slight irregularities are superimposed on the regular variations in 23 cases and the remaining 57 stars display irregular period variations. The light curve of ~50 per cent of the RRab stars is not stable, i.e., these variables exhibit Blazhko modulation. The large fraction of variables with peculiar behaviour (showing light-curve modulation and/or irregular O-C variation) indicate that, probably, variables with regular period changes incompatible with their evolutionary stages also could display some kind of instability of the pulsation light curve and/or period, but the available observations have not disclosed it yet. The temporal appearence of the Blazhko effect in some stars, and the 70-90 years long regular changes preceded or followed by irregular, rapid changes of the pulsation period in some cases support this hypothesis. [...] Abstract truncated due to the limitations of astroph. See full abstract in the paper.Comment: 22 pages, 14 figures, accepted for publication in MNRA

Spin and Statistics and First Principles

It was shown in the early Seventies that, in Local Quantum Theory (that is the most general formulation of Quantum Field Theory, if we leave out only the unknown scenario of Quantum Gravity) the notion of Statistics can be grounded solely on the local observable quantities (without assuming neither the commutation relations nor even the existence of unobservable charged field operators); one finds that only the well known (para)statistics of Bose/Fermi type are allowed by the key principle of local commutativity of observables. In this frame it was possible to formulate and prove the Spin and Statistics Theorem purely on the basis of First Principles. In a subsequent stage it has been possible to prove the existence of a unique, canonical algebra of local field operators obeying ordinary Bose/Fermi commutation relations at spacelike separations. In this general guise the Spin - Statistics Theorem applies to Theories (on the four dimensional Minkowski space) where only massive particles with finite mass degeneracy can occur. Here we describe the underlying simple basic ideas, and briefly mention the subsequent generalisations; eventually we comment on the possible validity of the Spin - Statistics Theorem in presence of massless particles, or of violations of locality as expected in Quantum Gravity.Comment: Survey based on a talk given at the Meeting on "Theoretical and experimental aspects of the spin - statistics connection and related symmetries", Trieste, Italy - October 21-25, 200