197,732 research outputs found
Trattato di diritto costituzionale, a cura di M. Benvenuti e R. Bifulco, vol. V
No full textTrattato di diritto costituzionale, a cura di M. Benvenuti e R. Bifulco, vol.
Trattato di diritto costituzionale
No full textIl volume è il quarto del Trattato di diritto costituzionale, a cura di R. Bifulco e M. Benvenut
Actors, smart technologies and governance in sustainable cities.
No full textThe innovation of urban contexts is even more a hot topic in the international debate (Cocchia 2014; Roberts et al. 2016). New technologies are currently considered as an unavoidable element in managing modern cities (Camagni et al. 1998; Ishida and Isbister 2000; Wolfram 2012), since they support spreading sophisticated services to improve the quality of life of citizens (Bifulco et al. 2014, 2016)
Trattato di diritto costituzionale, a cura di M. Benvenuti e R. Bifulco, vol. II
No full textIl volume affronta il tema dei princìpi fondamentali della Costituzione
2D-3D registration of CT vertebra volume to fluoroscopy projection: A calibration model assessment (doi:10.1155/2010/806094)
No full textThis study extends a previous research concerning intervertebral motion registration by means of 2D dynamic fluoroscopy to obtain a more comprehensive 3D description of vertebral kinematics. The problem of estimating the 3D rigid pose of a CT volume of a vertebra from its 2D X-ray fluoroscopy projection is addressed. 2D-3D registration is obtained maximising a measure of similarity between Digitally Reconstructed Radiographs (obtained from the CT volume) and real fluoroscopic projection. X-ray energy correction was performed. To assess the method a calibration model was realised a sheep dry vertebra was rigidly fixed to a frame of reference including metallic markers. Accurate measurement of 3D orientation was obtained via single-camera calibration of the markers and held as true 3D vertebra position; then, vertebra 3D pose was estimated and results compared. Error analysis revealed accuracy of the order of 0.1 degree for the rotation angles of about 1?mm for displacements parallel to the fluoroscopic plane, and of order of 10?mm for the orthogonal displacement.<br/
Possible relationship between statin use and decreased prevalence, number, and volume of thyroid nodules: a new indication for these drugs?
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