47,101 research outputs found
Colonna de Cesari Rocca. Le Nid de l' Aigle. Napoléon, sa patrie, son foyer, sa race.
No full textL. E-G. Colonna de Cesari Rocca. Le Nid de l' Aigle. Napoléon, sa patrie, son foyer, sa race.. In: Bibliothèque de l'école des chartes. 1905, tome 66. p. 441
Le zone di transizione a protezione dei tratti urbani appartenenti alla viabilità extraurbana
No full textAPPARECCHIATURE PER PROVE DI STABILITA' TERMICA SU FLUIDI ORGANICI PER CICLI A FLUIDO BIFASE
No full textLe apparecchiature in uso da alcuni anni presso il Politecnico di Milano e le procedure sperimentali per prove di stabilità termica sono state estesamnte modificate; la soglia di pirolisi dei fluidi viene evidenziata dalla misura della pressione isoterma in autoclavi termstatate, dal confronto della curva di tensione di vapore e dall'analisi gas-cromatografica del campione. L'affidabilità impiantistica e strumentale richieste hanno imposto la soluzione di problemi associati alla tenuta, ai disturbi introdotti dalle variazioni della temperatura ambiente, alla preparazione dei fluidi, nonché all'efficace rilevazione della curva di tensione di vapore
Analisi delle variazioni cicliche di integrated backscatter e di ispessimento miocardico durante pacing atriale transesofageo in pazienti con e senza malattia coronarica
No full textTime-course of Integrated Backscatter and Myocardial Thickening after Ischemia-induced Left Ventricular Dysfunction
No full textEffects of atrial pacing stress test on ultrasonic integrated backscatter cyclic variations in normal subjects and in patients with coronary artery disease.
No full textEffects of acute ischaemia on intramyocardial contraction heterogeneity. New technologies to study an old phenomenon.
No full textIF 5.15
Intramyocardial Heterogeneicity of Integrated Backscatter Cyclic Variations Blunting Induced by Atrial Pacing in CAD Patients
No full textEguaglianza e giustizia: linearità e incongruenze nella storia giuridica occidentale
No full textNella storia della cultura giuridica occidentale i principi di eguaglianza e giustizia hanno avuto uno sviluppo ambiguo: da un lato sono stati oggetto di continua precisazione e ampliamento sin dall’antichità classica, dall’altro la diseguaglianza ha trovato piena cittadinanza ancora nelle “costituzioni” di ancien régime favorendo tragedie quali la schiavitù o lo sfruttamento coloniale. Un passo in avanti si è compiuto con la riflessione illuminista e l’affermazione del principio di eguaglianza formale (XVIII-XIX secolo), per una svolta concreta e l’affermazione della nozione di eguaglianza sostanziale è necessario però guardare alle costituzioni Novecentesche, emblematico l’art. 3 della Costituzione repubblicana italiana.In the history of Western legal culture, the principles of equality and justice have developed ambiguously: on the one hand, they have been the subject of continuous clarification and expansion since the classical age, on the other, inequality has found full citizenship in the ancien régime "constitutions" favouring tragedies such as slavery or colonial exploitation. A step forward was made with the Enlightenment thought and the affirmation of the principle of formal equality (XVIII-XIX century), for a concrete turn and the affirmation of the notion of substantial equality is necessary however to look at the constitutions of the twentieth century, emblematic the art. 3 of The Constitution of the Italian Republic
Effects of acute myocardial ischemia on intramyocardial contraction heterogeneity.A study performed with ultrasound integrated backscatter during transesophageal atrial pacing
No full textBACKGROUND:
[corrected] Subendocardial thickening is greater than subepicardial thickening and acute myocardial ischemia mainly impairs the former. Integrated backscatter cyclic variations (IBScv) reflect regional myocardial contractility and are blunted during myocardial ischemia. We hypothesized that stress-induced myocardial ischemia mainly affects subendocardial IBScv.
METHODS AND RESULTS:
Multiplane transesophageal echocardiography and simultaneous atrial pacing were performed in 12 patients without coronary artery disease (CAD) and in 25 with significant CAD. In a transgastric 2-chamber view, we calculated IBScv in subendocardium and subepicardium and a heterogeneity index, both at rest and at peak-pacing. In 27 myocardial segments of patients with normal coronary arteries, and in 16 myocardial segments supplied by coronary artery without significant stenosis in patients with CAD, there was a transmural gradient of IBScv at rest and the heterogeneity index did not change during all the protocol steps. In the 53 myocardial segments related to a significantly narrowed coronary artery, the transmural gradient of IBScv, present at rest, significantly decreased at peak-pacing because of subendocardial blunting, but promptly recovered 5 seconds after pacing interruption. Moreover, the myocardial thickening at rest and peak pacing correlated with the subendocardial IBScv behavior and not with the subepicardial one.
CONCLUSIONS:
IBScv are greater in the subendocardium than in the subepicardium. Atrial pacing stress test does not affect IBScv in segments supplied by nonstenotic coronary arteries, whereas it affects segments supplied by diseased coronary arteries, blunting exclusively subendocardial IBScv. Heterogeneity of IBScv intramyocardial changes caused by stress-induced ischemia must be taken into account when using IBScv for investigating myocardial ischemia
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