Learn More
CuO is used as a catalyst or catalyst precursor in many chemical reactions that involve hydrogen as a reactant or product. A systematic study of the reaction of H 2 with pure powders and films of CuO was carried out using in situ time-resolved X-ray diffraction (XRD) and surface science techniques. Oxide reduction was observed at atmospheric H 2 pressures(More)
The changes introduced into the European Higher Education Area (EHEA) by the Bologna Process, together with renewed pedagogical and methodological practices, have created a new teaching-learning paradigm: Student-Centred Learning. In addition, the last few years have been characterized by the application of Information Technologies, especially the Semantic(More)
Bizarre parosteal osteochondromatous proliferation (BPOP), also called Nora's lesion, is an unusual, benign, bony lesion frequently found in the hand. Originally, two of the key radiological features used to describe such lesions were: (1) a lack of corticomedullar continuity and (2) an origin from the periosteal aspect of an intact cortex. The authors(More)
Propionic acidemia is a hereditary metabolic disease caused by a deficiency of enzyme propionyl-CoA carboxylase, which is involved in the catabolism of ramified amino acids, odd-chain fatty acids, and other metabolites; the deficiency of this enzyme leads to an accumulation of toxic substances in the body. There are various forms of clinical presentation(More)
California has a renewable portfolio standard (RPS) that requires its utilities to procure 33% renewable energy generation by 2020. The increase in variable generation from solar and wind, has led to discussions of future ramping needs to maintain grid reliability. The fluctuating generation supply due to renewables will require adequate flexible generators(More)
Plexiform neurofibromas are benign tumors originating from subcutaneous or visceral peripheral nerves, which are usually associated with neurofibromatosis type 1. Giant neurofibromas are very difficult to manage surgically as they are extensively infiltrative and highly vascularized. These types of lesions require complex preoperative and postoperative(More)
Multi-touch technology on tabletop displays lets children interact with digital objects in collaborative and competitive ways. Multi-touch tables are not a part of classroom instruction because of high cost and lack of meaningful applications. This thesis explores possible solutions to building hardware and software that support the engagement of children.(More)