186,591 research outputs found
Siempre asi ? : Vals [pour piano] / P. Barabino ; [ill. par] Paolo Fabatz
No full textTitre uniforme : Barabino, Pedro (18..-19.. ; compositeur). Compositeur. [Siempre asi ?. Piano]Valses (piano) -- +* 1900......- 1999......+:20e siècle:Piano, Musique de -- +* 1900......- 1999......+:20e siècle
Realizability conditions of LC bidimensional networks
No full textThe problem of necessary and sufficient conditions for the transfer short-circuit admittance of a two-dimension LC network is considered. The network is made interconnecting common grounded TT LC two-ports.The approach is similar to that used in a previous paper by J.D. Rhodes; using a lumped LC network instead of a RC distributed network, the realizability theorems are modified and new proofs are given
[Nicolo Barabino (1896), funerary sculpture]
No full textFrom Berresford: Nicolo Barabino (1896), Pietro Roncallo, Cimitero Comunale Sampierdarena-Castagna.Seated man with artist's palette.Title from Berresford
Two modified techniques for flexor tendon repair.
No full textThe aim of this article is to present two new techniques for digital flexor tendon repair: a modification to the conventional Kessler technique (wrap core suture) and tendon splints (H-shaped splint). These techniques were aimed at enhancing the biomechanical properties of such repairs as related to resistance to both gap formation and repair failure. Comparing (in an ex vivo study) the tensiometric properties (gap formation and failure strengths) of 24 flexor digitorum profundus tendons repaired with the described techniques (12 repairs per each technique) and the conventional Kessler repair (24 repairs), we found that the former provided significantly stronger repairs than the latter in vitro. A statistically significant difference (p < 0.001) was found between each of the two presented techniques and thr Kessler repair. The wrap core suture increased the load at which a visible (1 mm) gap formed by 22.6 percent when compared with the conventional Kessler suture. The mean gap strength of the wrap core repair was 6.5 N, whereas that of the conventional Kessler was 5.3 N. The failure loads (ultimate strength) of the wrap core suture were 33.8 percent higher than those of the conventional Kessler. The mean breaking load of the wrap core repair was 19.4 N, whereas that of the conventional Kessler was 14.5 N. The H-splint repair increased the load at which a risible gap formed and the failure loads (ultimate strength) by 158.5 and 333.1 percent, respectively, when compared with the conventional Kessler suture. The mean gap strength of the H-splint repair was 13.7 N, and its mean breaking load was 62.8 N
Gestione di progetti complessi in ambiente industriale usando un database per CAD. Problemi e prospettive
No full textIneffectiveness of acute scalp expansion.
No full textThe aim of this study was to test thr ex vivo biomechanical properties of acutely expanded scalp flaps to quantitatively assess the efficacy of acute scalp expansion. A total of 14 fresh male cadavers were used for the study. In each cadaver, a rectangular (4 x 10 cm), later-ally based flap was designed on each side of the scalp, starting from the superior margin of the external auditory canal. One randomly selected nap per scalp underwent acute intermittent expansion (a 3-minute expansion/3-minute rest cycle was performed three times with the maximum expansion achievable) the contralateral flap sen ed as a control. After the expansion process, the acutely expanded naps were measured to assess whether applied biomechanical stress caused any changes in flap dimensions. The biomechanical properties (stress/strain ratio, mean stiffness) of both expanded and control flaps were then assessed by means of a dynamometer and a force transducer. The obtained data showed that the biomechanical benefits provided by acute scalp expansion were not statistically different (p < 0.05) from those obtained by simple subgaleal undermining. No change of length nor gain in compliance was observed in the acutely expanded flaps as compared with control scalp flaps. In the authors' opinion, a possible explanation (to be further validated) for the lack of effect of acute scalp expansion might be that the inelastic galea aponeurotica did not allow mechanical creep to exploit the inherent elastic properties of the overlying scalp skin
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