4,327 research outputs found
William Shakespeare e il senso del tragico
No full textThis volume presents papers by several Shakespearean scholars divided in the following section: The philosophy of tragic (S. de Filippis, B. Del Villano, L. Di Michele, S. Manferlotti, A. Piazza, M. Stanco); The tragic gaze (M. Del Sapio Garbero, A. Leonardi, L. Sarnelli, M. Vitale); Adaptations, re-writings, transcodifications of tragic (A. M. Cimitile, R. Ciocca, M. De Chiara, C. M. Laudando); Tragic on stage (R. D'Avascio, L. Mango, P. Sommaiolo), Interpretations of tragic (L. Angiulli, G. Battaglia, M. Dalisi, A. D'Elia, S. Jotti, G. Piscitelli)
G. B. Shaw, Pygmalion. An Introduction
No full textStarting from a presentation of English theatre before G. B. Shaw, London intellectual and ideological background, Shaw's relation to Ibsen and his support to the women's liberation movement, this study analyses his theatre production covering the years 1890-1950, and examines the play Pygmalion paying attention to themes and characters, dramatic structure and style
Le implicazioni dell'accordo GATT per l'agricoltura e le politiche agrarie dell'Unione Europea
No full textb-Generalized Skew Derivations on Multilinear Polynomials in Prime Rings
No full textLet R be a prime ring of characteristic different from 2, Qr be its right Martindale quotient ring and C be its extended centroid. In this paper we define b-generalized skew derivations of prime rings. Then we describe all possible forms of two b-generalized skew derivations F and G satisfying the condition F(x)x − xG(x) = 0, for all x ∈ S, where S is the set of the evaluations of a multilinear polynomial f(x1, ..., xn) over C with n non-commuting variables. Several potential research topics related to our current work are also presented. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG
Exercise-induced improvement in vasodilatory function accompanies increased insulin sensitivity in obesity and type 2 diabetes mellitus.
No full textExercise-induced improvement in vasodilatory function accompanies increased insulin sensitivity in obesity and type 2 diabetes mellitus.
De Filippis E, Cusi K, Ocampo G, Berria R, Buck S, Consoli A, Mandarino LJ.
Center for Metabolic Biology, Arizona State University, 350 East Orange Street, P.O. Box 873704, Tempe, Arizona 85287-3704, USA.
OBJECTIVE:
The present study was undertaken to determine whether improved vasodilatory function accompanies increased insulin sensitivity in overweight, insulin-resistant subjects (OW) and type 2 diabetic patients (T2DM) who participated in an 8-wk exercise training regimen.
DESIGN:
Before and after training, subjects had euglycemic clamps to determine insulin sensitivity. Brachial artery catheterization was done on another occasion for measurement of vasodilatory function. A lean, healthy, untrained group was studied as nonexercised controls.
RESULTS:
Training increased oxygen consumption (VO2) peak [OW, 29 +/- 1 to 37 +/- 4 ml/kg fat-free mass (FFM).min; T2DM, 33 +/- 2 to 43 +/- 3 ml/kg FFM.min; P < 0.05] and improved insulin-stimulated glucose disposal (OW, 6.5 +/- 0.5 to 7.2 +/- 0.4 mg/kg FFM.min; T2DM, 3.8 +/- 0.3 to 4.2 +/- 0.3 mg/kg FFM.min; P < 0.05) in insulin resistance. OW and T2DM, before training, had decreased acetylcholine chloride (ACh)- and sodium nitroprusside-mediated vasodilation and decreased reactive hyperemia compared with lean controls. Training increased the vasodilatory response to ACh [OW (30 microg ACh/min), 12.2 +/- 3.4 to 19 +/- 4.2 ml/100 g.min; T2DM (30 microg ACh/min), 10.1 +/- 1.5 to 14.2 +/- 2.1 ml/100 g.min; P < 0.05] in both groups without affecting nitroprusside response.
CONCLUSION:
Because vasodilatory dysfunction has been postulated to contribute to insulin resistance, the exercise-induced improvement in vasodilatory function may signify changes in the endothelium that could contribute to the improvement in insulin sensitivity observed after aerobic exercise training
Certain functional identities involving a pair of generalized skew derivations with nilpotent values on Lie ideals
No full textLet R be a prime ring of characteristic different from 2, Q(r) its right Martindale quotient ring, L a non-central Lie ideal of R (i.e., L,R not equal 0), n >= 1 a fixed integer, F and G two generalized skew derivations of R, associated with the same automorphism alpha of R. If (F(xy)-G(x)y)(n) = 0, for any x,y is an element of L, then there exists a is an element of Q(r) such that , for any x is an element of R, unless when R satisfies the standard polynomial identity s(4)(x(1), ..., x(4))
An Innovative Mission Management System for Fixed-Wing UAVs
No full textThis paper presents two innovative units linked together to build the main frame of a UAV Mis- sion Management System. The first unit is a Path Planner for small UAVs able to generate optimal paths in a tridimensional environment, generat- ing flyable and safe paths with the lowest com- putational effort. The second unit is the Flight Management System based on Nonlinear Model Predictive Control, that tracks the reference path and exploits a spherical camera model to avoid unpredicted obstacles along the path. The control system solves on-line (i.e. at each sampling time) a finite horizon (state horizon) open loop optimal control problem with a Genetic Algorithm. This algorithm finds the command sequence that min- imizes the tracking error with respect to the ref- erence path, driving the aircraft far from sensed obstacles and towards the desired trajectory
A borderline case of calderon-zygmund estimates for nonuniformly elliptic problems
No full textIn a borderline case which was not covered before, nonlinear Calderon-Zygmund estimates are shown to be valid for a class of nonuniformly elliptic problems driven by double phase energies
Manifold Constrained Non-uniformly Elliptic Problems
No full textWe consider the problem of minimizing variational integrals defined on nonlinear Sobolev spaces of competitors taking values into the sphere. The main novelty is that the underlying energy features a non-uniformly elliptic integrand exhibiting different polynomial growth conditions and no homogeneity. We develop a few intrinsic methods aimed at proving partial regularity of minima and providing techniques for treating larger classes of similar constrained non-uniformly elliptic variational problems. To give estimates for the singular sets, we use a general family of Hausdorff type measures following the local geometry of the integrand. A suitable comparison is provided with respect to the naturally associated capacities
On the Regularity of Minima of Non-autonomous Functionals
No full textWe consider regularity issues for minima of non-autonomous functionals in the Calculus of Variations exhibiting non-uniform ellipticity features. We provide a few sharp regularity results for local minimizers that also cover the case of functionals with nearly linear growth. The analysis is carried out provided certain necessary approximation-in-energy conditions are satisfied. These are related to the occurrence of the so-called Lavrentiev phenomenon that non-autonomous functionals might exhibit, and which is a natural obstruction to regularity. In the case of vector valued problems, we concentrate on higher gradient integrability of minima. Instead, in the scalar case, we prove local Lipschitz estimates. We also present an approach via a variant of Moser’s iteration technique that allows to reduce the analysis of several non-uniformly elliptic problems to that for uniformly elliptic ones
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