B2 and G2 Toda systems on compact surfaces: a variational approach

We consider the B2 and G2 Toda systems on compact surfaces. We attack the problem using variational techniques. We get existence and multiplicity of solutions under a topological assumption on the surface and some generic conditions on the parameters. We also extend some of the results to the case of general systems.Comment: 28 pages, accepted on Journal of Mathematical Physic

Illustrare un canzoniere: appunti

Petrarch didn’t illustrate his Rvf autograph manuscript, but there are some fifteenth century Rvf manuscripts illuminated with an enough complex and varied strategy of illustrating. We felt that it might be of interest to reflect on the Petrarch’s choice of not illuminating his lyric book and to analyse painted illustrations in some Rvf manuscripts to enlighten their visual semantic

Illustrare un canzoniere: appunti

Petrarch didn’t illustrate his Rvf autograph manuscript, but there are some fifteenth century Rvf manuscripts illuminated with an enough complex and varied strategy of illustrating. We felt that it might be of interest to reflect on the Petrarch’s choice of not illuminating his lyric book and to analyse painted illustrations in some Rvf manuscripts to enlighten their visual semantic

Policy options to support the Agriculture Sector Growth and Transformation Strategy in Kenya: A CGE analysis

This report provides scientific evidences supporting the new Agriculture Sector Growth and Transformation Strategy in Kenya. A Computable General Equilibrium (CGE) model specifically modified for the context of Kenya is used to address the impacts of six policy changes. For the purpose of the study, a desegregated version of a 2014 Social Accounting Matrix (SAM) has been developed for Kenya. Multi-sectoral analytical tools are used to describe the Kenyan economy and inform about which agri-food value chains have the greatest impact in terms of output, employment and value added. Then, results of simulated policy changes are presented in this report, considering that a more careful analysis at regional and household type levels is required in order to draw robust policy recommendations.JRC.D.4-Economics of Agricultur

Evidence for Anti-vascular Endothelial Growth Factor Treatment of Diabetic Macular Oedema

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Primary Absence of Type II Endoleak is A Positive Prognostic Factor against the Risk of Late Conversion of EVAR for AAA

Introduction: The aim of this study is to analyze 12 late conversion to open surgery after Endovascular Repair of Abdominal Aortic Aneurysms (EVAR) while comparing the follow up of these cases to that of the definitely successful procedures (absence of surgical conversion, type I or III endoleaks, or presence of type II endoleaks without any aneurysmal sac enlargement) . Methods: From a series of over 300 EVAR procedures performed at our department we have selected 215 cases with a follow up ≥ 6 month and primary technical success (successful deployment of the devices and discharge of patients without neither type I nor III endoleaks). Based on the final data recorded at the end of the follow up (mean+ IQR: 38.16 months + 41), these cases were divided into three groups: group 1, with 12 cases (5.6%) which needed surgical conversion in a later stage (5 to 55 months from EVAR); group 2, with 39 cases (18.1%) with type II endoleaks without aneurysmal sac enlargement; group 3, with 164 cases (76.5%) without endoleaks. The groups were compared in relation to the following parameters: a) personal data and common atherogenic risk factor, b) diameter of the aneurysm, c) kind of the proximal fixation of the endograft (suprarenal or infrarenal), d) presence of endoleaks at the first postoperative check. We have compared the data from the three groups and we have analyzed them with chi-square test (Χ2). Results: Personal data and common atherogenic risk factor have proved no significant difference among the three groups. The incidence of the other three parameters of group 1 was compared with the incidence of these in groups 2 and 3: the mean pre-operative diameter of the aneurysm results 51 mm in group 1, 54 mm in group 2 and 55 mm in group 3 (not significant); suprarenal fixation of the prosthesis accounts for 50% in group 1, 51% in group 2 and 60% in group 3 (not significant); presence of type II endoleak at the first post-operative check was 41.6% in group 1, 56.4% in group 2 (not significant) and 9.7% in group 3 (p<0.001, compared to groups 1 and 2). Conclusion: In the EVAR procedures with primary technical success, the absence of type II endoleak at the first post-operative check represents a favorable prognostic factor against the risk of late conversion to open repair. Personal data, common atherogenic risk factor, diameter of the aneurysm and fixing type of the prosthesis don’t seem to influence the onset of this complication