Mavratzakis A.,University of Newcastle |
Herbert C.,University of Tübingen |
Herbert C.,University of Würzburg |
Walla P.,University of Newcastle |
And 2 more authors.
NeuroImage | Year: 2016
In the current study, electroencephalography (EEG) was recorded simultaneously with facial electromyography (fEMG) to determine whether emotional faces and emotional scenes are processed differently at the neural level. In addition, it was investigated whether these differences can be observed at the behavioural level via spontaneous facial muscle activity. Emotional content of the stimuli did not affect early P1 activity. Emotional faces elicited enhanced amplitudes of the face-sensitive N170 component, while its counterpart, the scene-related N100, was not sensitive to emotional content of scenes. At 220-280. ms, the early posterior negativity (EPN) was enhanced only slightly for fearful as compared to neutral or happy faces. However, its amplitudes were significantly enhanced during processing of scenes with positive content, particularly over the right hemisphere. Scenes of positive content also elicited enhanced spontaneous zygomatic activity from 500-750. ms onwards, while happy faces elicited no such changes. Contrastingly, both fearful faces and negative scenes elicited enhanced spontaneous corrugator activity at 500-750. ms after stimulus onset. However, relative to baseline EMG changes occurred earlier for faces (250. ms) than for scenes (500. ms) whereas for scenes activity changes were more pronounced over the whole viewing period. Taking into account all effects, the data suggests that emotional facial expressions evoke faster attentional orienting, but weaker affective neural activity and emotional behavioural responses compared to emotional scenes. © 2015 The Authors.
Eskerod P.,Webster University, Vienna |
Larsen T.,Slagelse Municipality
International Journal of Project Management | Year: 2017
The paper contributes to the theoretical debate on stakeholder management within project-oriented organizations. Despite acknowledging that 'no project is an island', project management theory (being originally a child of Scientific Management) has drawn on reductionism, i.e. the practice of simplifying the description of a complex phenomenon in order to better grasp it. Project stakeholder management theory has been heavily influenced by this approach, and the unintended consequence is that the simplicity of the stakeholder conceptualization makes it difficult for project representatives to predict stakeholder behavior. In the paper, we suggest the concept 'shadows of the context' as a substitute for narrow perceptions of 'What's in it for me?'. Advantages and disadvantages of a reductionist approach versus the richer and more profound and holistic 'shadows of the context' approach within stakeholder analysis are discussed. The paper also celebrates Prof. J. Rodney Turner's significant influences within the project management field. © 2017 Elsevier Ltd and Association for Project Management and the International Project Management Association.
Floh A.,University of Surrey |
Madlberger M.,Webster University, Vienna
Electronic Commerce Research and Applications | Year: 2013
This study extends a stimulus-organism-response (S-O-R) model to include impulse-buying behavior, which plays a vital role in electronic shopping but has not gained much attention in e-commerce research. Grounding our research in environmental psychology, we test the effects of virtual atmospheric cues on online impulse-buying behavior and spending, via a consumer survey. The study applies elaborated mediating variables (shopping enjoyment and impulsiveness) to develop a structural model linking three categories of atmospheric cues of an electronic store (content, design, and navigation) to approach behavior variables (impulse-buying behavior and expenditure). The results support the validity of the S-O-R model in the context of online impulse-buying behavior and show a significant positive effect of two dimensions of virtual atmospheric cues (design and navigation). © 2013 Elsevier B.V. All rights reserved.
Brutschin E.,Webster University, Vienna |
Fleig A.,University of Heidelberg
Energy Policy | Year: 2016
This paper analyzes the effects of fossil fuel rents on R&D expenditures and patent grants in the field of energy-related technology. We argue that an increasing share of fossil fuel rents lessens the innovation of new energy technologies. We consider a sample of countries beyond the common selection of OECD members and investigate innovation efforts in the energy sector of 116 countries from 1980 to 2012. We observe the gradually growing influence of resource-abundant countries on global R&D expenditures and find that increasing fossil fuel rents have a negative effect on patent grants. This study contributes to the ongoing debate concerning the potential effects of resource abundance. More importantly, it increases our understanding of innovation activities within the energy sector and further underscores the need to extend future research to countries that have not been taken into account thus far. © 2016 Elsevier Ltd
Antonakakis N.,University of Portsmouth |
Antonakakis N.,Vienna University of Economics and Business |
Antonakakis N.,Webster University, Vienna |
Collins A.,University of Portsmouth
Social Science and Medicine | Year: 2015
While linkages between some macroeconomic phenomena and suicides in some countries have been explored, only two studies, hitherto, have established a causal relationship between fiscal austerity and suicide, albeit in a single country. The aim of this study is to provide the first systematic multiple-country evidence of a causal relationship of fiscal austerity on time-, gender-, and age-specific suicide mortality across five Eurozone peripheral countries, namely Greece, Ireland, Italy, Portugal and Spain over the period 1968-2012, while controlling for various socioeconomic differences. The impact of fiscal adjustments is found to be gender-, age- and time-specific. Specifically, fiscal austerity has short-, medium- and long-run suicide increasing effects on the male population in the 65-89 age group. A 1% reduction in government spending is associated with a 1.38%, 2.42% and 3.32% increase in the short-, medium- and long-run, respectively, of male suicides rates in the 65-89 age group in the Eurozone periphery. These results are highly robust to alternative measures of fiscal austerity. Improved labour market institutions help mitigate the negative effects of fiscal austerity on suicide mortality. © 2015 Elsevier Ltd.
Lehenbauer M.,Research Team |
Kothgassner O.D.,Research Team |
Kryspin-Exner I.,Research Team |
Stetina B.U.,Webster University, Vienna
Computers and Education | Year: 2013
Up to 95% of teens and young adults in western societies are online, and research shows striking evidence that users suffering from social fears use the Internet more frequently. Social phobia (SP) is one of the most common anxiety disorders, characterized by early onset and more frequent histories of childhood and adolescent shyness. SP is often untreated because adolescent sufferers hesitate to talk to teachers or attend any face-to-face treatment. Furthermore, teachers and caregivers, responsible for educating these young adults, often lack the clinical-psychological knowledge to help. Therefore, we developed an online training for providing educative knowledge about social skills, social fears and body relaxation methods (including evidence-based cognitive- behavioural therapy (CBT) elements combined with elements from social skills trainings (SST)). Until now, no such online tool was readily available for teachers and caregivers in Europe's German-speaking areas. In addition, the transformation of a well-evaluated (offline) SST with CBT elements into an attractive online form rendered a definite challenge. To assist teachers and caregivers, we developed an online-based self-administered SST with CBT elements especially for adolescents and young adults. The novelty of the project was its development in close cooperation with target groups to ensure usability and acceptance. This multi-stage program for the prevention of social fears and social phobia includes the promotion of social skills moreover cognitive restructuring. Fourteen text- and comic-based sessions (one session per week, each session takes 30-40 min) provide knowledge about social fears and social skills. The effectiveness was evaluated using pre- and post-tests with 61 training participants and 47 control group students. Preliminary results showed promising and significant effects in the intervention group: a decrease of social fears as well as an increase of social skills. These findings suggest that our self-administered online training is effective preventing social fears, and may be considered as an educative tool for teachers and caregivers (providing evidence-based information about social fears, social skills and body relaxation methods). © 2012 Elsevier Ltd. All rights reserved.
Madlberger M.,Webster University, Vienna
ECIS 2012 - Proceedings of the 20th European Conference on Information Systems | Year: 2012
Firms frequently apply more than one information system for their processes and data exchange. This variety is often due to the existence of legacy systems and can cause large inefficiencies. At present, most consumer goods firms aim at replacing non-integrated information flows with electronic data interchange. In doing so, firms constantly increase their level of information systems (IS) integration. However, firms have to decide whether they replace non-integrated legacy systems incrementally or radically. The paper investigates this issue from a conceptual viewpoint that combines the information technology (IT) substitution perspective with the concept of levels of IS integration. An empirical case study investigates two alternative IT substitution approaches, i.e., an incremental and a complete IT substitution, in respect of their impacts on process efficiency improvement. The results indicate that the complete IT substitution achieves significantly larger efficiency gains due to the impact of IS integration levels.
Madlberger M.,Webster University, Vienna
Lecture Notes in Business Information Processing | Year: 2015
Since the emergence of electronic commerce the tourism industry has undergone a substantial transformation. Especially travel agencies that are faced with growing online competition are increasingly dependent on achieving online sales. This study investigates antecedents of consumers’ intention to book trips online on travel agencies’ websites. The research draws on an integrated research model based on the technology acceptance model and customer satisfaction as introduced in the DeLone and McLean model on information system success. Two alternative models were tested: A parsimonious basic model includes information quality and system quality as object-based beliefs that influence satisfaction as an object-based attitude. The second model is extended and includes a third object-based belief, that is, service quality. Satisfaction is hypothesized to impact perceived usefulness that is a driver of perceived ease of use and online booking intention. Both models were tested with survey data from 292 consumers. The study provides several scholarly and managerial implications for the online distribution of tourism services. © Springer International Publishing Switzerland 2015.
Brutschin E.,Webster University, Vienna
Lecture Notes in Energy | Year: 2015
This chapter traces the role of eastern European countries during the negotiations of the third gas directive and their role in bringing on the decision agenda the so-called “Gazprom clause”. It is argued that the enlargement did not significantly change the interest heterogeneity on the liberalisation issues and that the main explanatory power for successful decision agenda thus lies in the framing strategies that were utilised before the negotiations. Followed by a number of events, such as building of the Nord Stream pipeline and Ukrainian gas crisis of 2006, many member states used the momentum to reframe the debate as a foreign policy issue rather than as a competition policy issue. This served as a basis for the securitisation of the European energy policies and successful mobilisation of other participants in the policy process, which resulted in the inclusion of the “Gazprom clause” in the final version of the third gas directive. © Springer-Verlag London 2015.
Madlberger M.,Webster University, Vienna
WEBIST 2014 - Proceedings of the 10th International Conference on Web Information Systems and Technologies | Year: 2014
The tourism industry has undergone a substantial transformation since the emergence of electronic commerce. Especially travel agencies that are faced with growing online competition are increasingly dependent on achieving online sales. This study investigates antecedents of consumers' intention to book a trip online at a travel agency's website. The research draws on an integrated research model based on the technology acceptance model and customer satisfaction as introduced in the DeLone and McNeal model on information system success. An online survey among 292 consumers largely supports the hypothesized impact factors. Information quality serves as a significant object-based belief that influences satisfaction as an object-based attitude. In contrast, system quality has no impact on satisfaction. Satisfaction influences perceived usefulness, a key driver of online booking intention and perceived ease of use. The study provides several scholarly and managerial implications for the online distribution of tourism services. Copyright © 2014 SCITEPRESS.