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We present the SPEED method to predict endpoints, based on analysis of the kinetic characteristics of the pointing gesture. Our model splits the gesture into an acceleration phase and a deceleration phase to precisely detect target. The first phase allows us to identify a velocity peak that marks the beginning of the second phase. This phase is approached(More)
We present Starfish - a new target selection technique for virtual reality (VR) environments. This technique provides a solution to accurately select targets in high-density 3D scenes. The user controls a 3D pointer surrounded by a starfish-shaped closed surface. The extremity of each branch ends exactly on preselected near targets. The shape is an implicit(More)
A collation of 64 colonoscopic examinations performed on 41 patients operated on for cancer of the colon or rectum is reported. Eleven patients (26.8 percent) had positive follow-up endoscopic findings. In 13 enumerated tumoral proliferations. 8 benign polyps and 5 malignant growths were found, one of the latter on the anastomosis, and the other 4 on the(More)
We present Bubble Bee - an extension for the 3D bubble cursor in Virtual Environments (VEs). This technique provides an alternative to arrows for pointing out a direction in a 3D scene. Bubble Bee is based on a ring concept. A circular ring in 3D appears like an ellipse, according to its orientation. This orientation is easy to infer by comparing the minor(More)
alpha-Chymotrypsin exhibits photoswitchable activities in an organic solvent after covalent modification of the protein backbone with thiophenefulgide active ester (2). The thiophenefulgide-modified alpha-chymotrypsin exhibits reversible photoisomerizable properties between states (3)-E and (3)-C. The modified alpha-chymotrypsin, where nine lysine residues(More)
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