120 research outputs found
Car Road Charging: Impact Assessment on German and Austrian Households
The authors apply a computable general equilibrium (CGE) modeling framework to carry out a two-country comparison for Austria and Germany assessing the impact of road charging (RC). The pricing policy measure is introduced for the private motorized transport mode and applies to the overall road network. To derive and compare distributional effects of passenger car RC, the mode-specific travel demand of private households is integrated into the CGE model. Furthermore, the modeling framework accounts for different household categories with respect to disposable net income and the corresponding travel demand profiles introduced in terms of behavioral mobility parameters as well as household travel expenditures. Comparing the country-specific results, we find country-specific differences in the impact of RC on household categories, as well as similarities. The differences that we find indicate the importance of particular parameters for the evaluation of infrastructure pricing policy reforms. We can relate differences to prevalent country-specific differences in sociodemographic characteristics, land use structure, territorial population distribution, as well as macroeconomic indicators. To add substance to the two-country impact assessment, a sensitivity analysis is carried out, introducing different RC revenue use schemes. We find differences in distributional effects under equity concerns to be closely related to the revenue use pattern as well as to country- and household-specific travel demand profiles.Computable general equilibrium model, redistributive effects, road charging
The Carbon Content of Austrian Trade Flows in the European and International Trade Context
In this study CO2 emissions embodied in Austrian international trade are quantified employing a 66-region input output model of multidirectional trade. We find that Austriaâs final demand CO2 responsibilities on a global scale are 38% higher than conventional statistics report (110 Mt-CO2 versus 79 Mt-CO2 in 2004). For each unit of Austrian final demand, currently two thirds of the thus triggered CO2 emissions occur outside Austrian borders. We then develop a 19-region computable general equilibrium model of Austria and its major trading partners and world regions to find that future Austrian climate policy can achieve the EU 20-20 emission reduction targets, but that its carbon trade balance would worsen considerably. Both unilateral EU and internationally coordinated climate policies affect Austrian international trade stronger than its domestic production.Multi-regional Input-Output Analysis, Multi-regional Computable General Equilibrium, Embodied emissions, Consumption-based principle, Carbon Leakage, Carbon dioxide, Unilateral Climate Policy
AuĂenhandel und Umwelt: Was bringt CancĂșn?
Im Rahmen der Klimarahmenkonvention der UNO treffen die Vertragsstaaten zu ihren Verhandlungen (Conference of Parties, COP 16) von 29. November bis 10. Dezember 2010 in Cancun, Mexiko zusam-men. Die naturwissenschaftlichen Grundlagen fĂŒr die Szenarien des Klimawandels haben sich ĂŒber die letzten Jahre weiter erhĂ€rtet und weisen auf die Notwendigkeit einer umfassenden Reduktion der Treibhausgasemissionen hin â einer Reduktion um ein Vielfaches der im Kyoto-Vertrag vereinbarten Ziele und unter Einbeziehung von wesentlich mehr als der damaligen Vertragsstaaten. Die VorgĂ€nger-Vertragsstaaten-Konferenz in Kopenhagen 2009 markierte eine fundamentale Ănderung in der inter-nationalen Klimapolitik-Architektur, statt völkerrechtlich verbindlichen gemeinsamen Zielen dĂŒrfte es nun den einzelnen Staaten ĂŒberlassen bleiben welche Handlungen sie setzen. Einzelstaatliche Klimapolitik lĂ€uft ohne gemeinsame Ziele aber Gefahr mit wesentlichen Wettbewerbseffekten im internatio-nalen Handel verbunden zu sein. FĂŒr einige Wirtschaftssektoren zeichnen sich technologische Quan-tensprĂŒnge fĂŒr âLow Carbonâ Strukturen ab. FĂŒr andere Sektoren werden globale sektorale Treibhaus-gas-Abkommen diskutiert. VorschlĂ€ge liegen insbesondere aber auch fĂŒr Border Tax Adjustments vor, um potenziell nachteiligen Wettbewerbseffekten vorzubeugen. Die Interessenlage der Verhandlungs-staaten ist dabei durchaus komplex.
Consistent economic cross-sectoral climate change impact scenario analysis: Method and application to Austria
AbstractClimate change triggers manifold impacts at the national to local level, which in turn have various economy-wide implications (e.g. on welfare, employment, or tax revenues). In its response, society needs to prioritize which of these impacts to address and what share of resources to spend on each respective adaptation. A prerequisite to achieving that end is an economic impact analysis that is consistent across sectors and acknowledges intersectoral and economy-wide feedback effects. Traditional Integrated Assessment Models (IAMs) are usually operating at a level too aggregated for this end, while bottom-up impact models most often are not fully comprehensive, focusing on only a subset of climate sensitive sectors and/or a subset of climate change impact chains. Thus, we develop here an approach which applies climate and socioeconomic scenario analysis, harmonized economic costing, and sector explicit bandwidth analysis in a coupled framework of eleven (bio)physical impact assessment models and a uniform multi-sectoral computable general equilibrium model. In applying this approach to the alpine country of Austria, we find that macroeconomic feedbacks can magnify sectoral climate damages up to fourfold, or that by mid-century costs of climate change clearly outweigh benefits, with net costs rising two- to fourfold above current damage cost levels. The resulting specific impact information â differentiated by climate and economic drivers â can support sector-specific adaptation as well as adaptive capacity building
Normal tissue complication models for clinically relevant acute esophagitis (>= grade 2) in patients treated with dose differentiated accelerated radiotherapy (DART-bid)
Background: One of the primary dose-limiting toxicities during thoracic irradiation is acute esophagitis (AE). The aim of this study is to investigate dosimetric and clinical predictors for AE grade >= 2 in patients treated with accelerated radiotherapy for locally advanced non-small cell lung cancer (NSCLC). Patients and methods: 66 NSCLC patients were included in the present analysis: 4 stage II, 44 stage IIIA and 18 stage IIIB. All patients received induction chemotherapy followed by dose differentiated accelerated radiotherapy (DART-bid). Depending on size (mean of three perpendicular diameters) tumors were binned in four dose groups: 6 cm 90 Gy. Patients were treated in 3D target splitting technique. In order to estimate the normal tissue complication probability (NTCP),two Lyman models and the cutoff-logistic regression model were fitted to the data with AE >= grade 2 as statistical endpoint. Inter-model comparison was performed with the corrected Akaike information criterion (AIC(c)),which calculates the model's quality of fit (likelihood value) in relation to its complexity (i.e. number of variables in the model) corrected by the number of patients in the dataset. Toxicity was documented prospectively according to RTOG. Results: The median follow up was 686 days (range 84-2921 days), 23/66 patients (35 %) experienced AE >= grade 2. The actuarial local control rates were 72.6 % and 59.4 % at 2 and 3 years, regional control was 91 % at both time points. The Lyman-MED model (D50 = 32.8 Gy, m = 0.48) and the cutoff dose model (D-c = 38 Gy) provide the most efficient fit to the current dataset. On multivariate analysis V38 (volume of the esophagus that receives 38 Gy or above, 95 %-CI 28.2-57.3) was the most significant predictor of AE >= grade 2 (HR = 1.05, CI 1.01-1.09, p = 0.007). Conclusion: Following high-dose accelerated radiotherapy the rate of AE >= grade 2 is slightly lower than reported for concomitant radio-chemotherapy with the additional benefit of markedly increased loco-regional tumor control. In the current patient cohort the most significant predictor of AE was found to be V38. A second clinically useful parameter in treatment planning may be MED (mean esophageal dose)
Regional and environmental impacts of expanding the heavy duty vehicle charge to the secondary road network in Austria
A prospective randomised, open-labeled, trial comparing sirolimus-containing versus mTOR-inhibitor-free immunosuppression in patients undergoing liver transplantation for hepatocellular carcinoma
<p>Abstract</p> <p>Background</p> <p>The potential anti-cancer effects of mammalian target of rapamycin (mTOR) inhibitors are being intensively studied. To date, however, few randomised clinical trials (RCT) have been performed to demonstrate anti-neoplastic effects in the pure oncology setting, and at present, no oncology endpoint-directed RCT has been reported in the high-malignancy risk population of immunosuppressed transplant recipients. Interestingly, since mTOR inhibitors have both immunosuppressive and anti-cancer effects, they have the potential to simultaneously protect against immunologic graft loss and tumour development. Therefore, we designed a prospective RCT to determine if the mTOR inhibitor sirolimus can improve hepatocellular carcinoma (HCC)-free patient survival in liver transplant (LT) recipients with a pre-transplant diagnosis of HCC.</p> <p>Methods/Design</p> <p>The study is an open-labelled, randomised, RCT comparing sirolimus-containing versus mTOR-inhibitor-free immunosuppression in patients undergoing LT for HCC. Patients with a histologically confirmed HCC diagnosis are randomised into 2 groups within 4-6 weeks after LT; one arm is maintained on a centre-specific mTOR-inhibitor-free immunosuppressive protocol and the second arm is maintained on a centre-specific mTOR-inhibitor-free immunosuppressive protocol for the first 4-6 weeks, at which time sirolimus is initiated. A 2<sup>1/2</sup> -year recruitment phase is planned with a 5-year follow-up, testing HCC-free survival as the primary endpoint. Our hypothesis is that sirolimus use in the second arm of the study will improve HCC-free survival. The study is a non-commercial investigator-initiated trial (IIT) sponsored by the University Hospital Regensburg and is endorsed by the European Liver and Intestine Transplant Association; 13 countries within Europe, Canada and Australia are participating.</p> <p>Discussion</p> <p>If our hypothesis is correct that mTOR inhibition can reduce HCC tumour growth while simultaneously providing immunosuppression to protect the liver allograft from rejection, patients should experience less post-transplant problems with HCC recurrence, and therefore could expect a longer and better quality of life. A positive outcome will likely change the standard of posttransplant immunosuppressive care for LT patients with HCC.</p> <p>Trial Register</p> <p>Trial registered at <url>http://www.clinicaltrials.gov</url>: NCT00355862</p> <p>(EudraCT Number: 2005-005362-36)</p
Genomic loss of the putative tumor suppressor gene E2A in human lymphoma
The transcription factor E2A is essential for lymphocyte development. In this study, we describe a recurrent E2A gene deletion in at least 70% of patients with SĂ©zary syndrome (SS), a subtype of T cell lymphoma. Loss of E2A results in enhanced proliferation and cell cycle progression via derepression of the protooncogene MYC and the cell cycle regulator CDK6. Furthermore, by examining the gene expression profile of SS cells after restoration of E2A expression, we identify several E2A-regulated genes that interfere with oncogenic signaling pathways, including the Ras pathway. Several of these genes are down-regulated or lost in primary SS tumor cells. These data demonstrate a tumor suppressor function of E2A in human lymphoid cells and could help to develop new treatment strategies for human lymphomas with altered E2A activity
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