178,234 research outputs found
Patologia dell'Aorta Toracica: angiografia pre-operaotoria per lo studio dell'aorta toracica
No full textPublisher correction: Human mid-trimester amniotic fluid (stem) cells lack expression of the pluripotency marker OCT4A
No full textIn the original version of this Article, the author Paolo De Coppi was incorrectly indexed. This error has now been corrected
Importance and Unpredictability of Self-organization Processes in Fusion Burning Plasmas
No full textSelf-organization processes are considered to have an important role in well confined plasmas produced by present day experiments where the heating source is externally applied. The observation of ``Profile Consistency'' [1] is viewed as a manifestation of the presence of these processes. In the case of fusion burning plasmas close to self-sustainment (ignition) most of the heating due to fusion products is strongly dependent on the evolution of both the plasma temperature and density profiles. Therefore, self-organization is expected to be of considerably greater importance than in the case of non-reacting plasmas. This fact involves a significant degree of unpredictability on the outcome of envisioned experiments on burning plasmas that has to be added to the complexity of the collective modes that are expected to emerge. Thus, one of the motivations for the Ignitor program is to shed light on these issues and minimize the uncertainties for the design of more ambitious undertakings such as a Compact Pilot Plant. *Sponsored in part by CNR of Italy. [1] B. Coppi, Comm. Plasma Phys. Cont. Fusion extbf{5}, 261 (1980)
Cross-Sectional and Longitudinal Fuzzy Clustering Models for Triangular Fuzzy Time Trajectories
No full textCerebral protection devices for carotid stenting
No full textEmbolization during every phase of the procedure of CAS was the principle obstacle in the diffusion of this methodology. The introduction of the cerebral protection system has permitted results which are comparable with those of surgery. A large variety of protection systems have been proposed, of which the most used are those with filters and proximal occlusion systems with double balloons. Each of these devices have advantages and disadvantages depending upon the anatomical conditions in which they are applied and no one study has demonstrated greater effectiveness of one device over another in statistical terms even if, in difficult anatomical conditions, the devices with a double balloon system seem to perform better . In spite of the use of cerebral protection devices, embolic complications during CAS continues to occur. The use of cerebral protection devices should be evaluated according, not only to the methods of a total protection based on the characteristics of the patient to treat, but also on the selection of the lesions, the imaging equipment and the level of expertise and unity of the whole team
Diagnostica avanzata e accessi endovascolari
No full textVolume cartonato di 576 pagine con 667 figure in nero e a colori e 74 tabelle - Questo volume intende offrire un supporto ampio e di rapida consultazione della diagnostica utile e appropriata per affrontare le procedure endoluminali secondo le più attuali conoscenze offerte dalle diverse discipline coinvolte. Per un intervenzionista che sia Chirurgo vascolare, Cardiologo o Radiologo già introdotto alle procedure oppure per chi desidera avvicinarsi a questa importante disciplina, il volume "Diagnostica avanzata e accessi endovascolari" assolve pienamente all'obiettivo di fornire una adeguata diagnostica prima e durante una procedura endoluminale o endovascolare. Il testo accosta alla diagnostica di secondo livello per le procedure endovascolari anche le informazioni necessarie per un buon approccio ai vasi con aghi, guide, cateteri ecc. proprio allo scopo di dimostrare che le procedure devono seguire a una buona diagnostica che, a sua volta, è la base di una buona clinica
Un Modello Stocastico a Coefficienti Variabili e con Input Esogeni per lo Studio Predittivo dei Fenomeni Ambientali
No full text- …
