Ultrafast Photodynamics of the Indoline Dye D149 Adsorbed to Porous ZnO in Dye-Sensitized Solar Cells

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Multi-detector CT angiographic imaging in the follow-up of patients after endovascular abdominal aortic aneurysm repair (EVAR)

BACKGROUND: Multidetector computed tomography (MDCT) angiography represents the standard of reference in the follow-up of patients after endovascular abdominal aortic aneurysm repair (EVAR), being effective in the detection of the full spectrum of possible complications on both axial and 3D images. METHODS: The purpose of this article is to review the normal CT angiography findings of the different types of stent-grafts and to describe the radiological findings of early and late complications after EVAR on axial and reconstructed images. A selection of cases of post-EVAR MDCT angiography is presented to learn the techniques most commonly used for endovascular treatment, the correct CT scanning technique to acquire the data, the full gamut of possible procedure-related complications and how these complications usually appear on CT images. CONCLUSION: MDCT angiography is an effective and specific technique in both the pre- and postoperative settings of EVAR procedures. A better understanding of the procedure, the devices, the normal postoperative imaging features and the possible procedure-related complications ensures optimal planning and follow-up of patients undergoing an EVAR procedure

Digital transformation and possession attachment: examining the endowment effect for consumers' relationships with hedonic and utilitarian digital service technologies

A significant body of research has examined the importance of material possession attachment and its influence on consumer behavior. Critical questions, however, remain with regard to the extent to which, and if at all, consumers form instantaneous possession attachment in electronic commerce. In this research, we conducted one quasi-experimental field study and one scenario-based online experiment to examine the endowment effect (EE) for digital services. The current findings demonstrate that consumers become instantaneously attached to and are reluctant to give up digital services once they have obtained them. Two main explanations of the EE in electronic commerce are investigated. Critically, the results show that the psychological processes underlying the effect differ between utilitarian and hedonic digital services. Proprietary feelings towards utilitarian digital services occur due to loss aversion, whereas proprietary feelings towards hedonic digital services reflect the consumer's conscious self-relatedness to the digital service