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JPEG 2000, the new ISO/ITU-T standard for still image coding, is about to be finished. Other new standards have been recently introduced, namely JPEG-LS and MPEG-4 VTC. This paper compares the set of features offered by JPEG 2000, and how well they are fulfilled, versus JPEG-LS and MPEG-4 VTC, as well as the older but widely used JPEG and more recent PNG.(More)
The behavior of glutathione reductase (GR, EC 1.6.4.2) activity and isoforms were analyzed in wheat (Triticum aestivum L.) leaves and roots exposed to a chronic treatment with a toxic cadmium (Cd) concentration. A significant growth inhibition (up to 55%) was found in leaves at 7, 14 and 21 days, whereas roots were affected (51%) only after three weeks.(More)
Heme oxygenase (HO) has antioxidant properties and is up-regulated by reactive oxygen species (ROS) in ultraviolet-B-irradiated soybean plants. This study shows that nitric oxide (NO) protects against oxidative damage and that nitric oxide synthase (NOS)-like activity is also required for HO-1 induction under UV-B radiation. Pre-treatments with sodium(More)
Acknowledgements There are so many people to thank that I don't really know how to begin; I just hope I won't forget anybody. Let's maybe start with my advisors, Jean-Philippe Thiran and Reto Meuli, who gave me the opportunity to acquire a scientific education and who where sufficiently confident in my capabilities to let an M.D. work on a technical(More)
Heme oxygenase (HO) is an enzyme that is involved in numerous secondary actions. One of its products, CO, seems to have an important but unclear role in blood pressure regulation. CO exhibits a vasodilator action through the activation of soluble guanylate cyclase and the subsequent production of cyclic guanosine monophosphate (cGMP). The aim of the present(More)
Region Of Interest (ROI) coding is one of the innovative functionalities supported by JPEG 2000, the new ISO/ITU-T still image coding standard developed by the Joint Photographic Experts Group (JPEG). It enables a non-uniform distribution of the image quality between a selected region (the ROI) and the rest of the image (background). This feature is(More)
BACKGROUND International patient centredness concepts were suggested but never conceptualized from the patients' perspective. Previously, a literature review and a monolingual qualitative study defined 'patient-centred infertility care' (PCIC). The present study aimed to test whether patients from across Europe value the same aspects of infertility care. (More)
Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works, must be obtained from the IEEE. ABSTRACT JPEG 2000, the new(More)
Plants are frequently subjected to different kinds of stress, such as salinity and, like other organisms, they have evolved strategies for preventing and repairing cellular damage caused by salt stress. Glycine max L. plants were subjected to different NaCl concentrations (0-200 mM) for 10 days. Treatments with 100 and 200 mM NaCl induced ion leakage and(More)
Laplacian pyramids are used in the framework of scalable video coding to efficiently provide spatial scalability. In literature, closed-loop schemes are adopted to implement such codecs. Closed-loop introduces complexity and optimization drawbacks. In this paper we investigate mechanisms to provide an open loop version of the Laplacian pyramid. We call our(More)