N=2N=2 chiral WZNW model in superspace

We study the Poisson bracket algebra of the $N=2$ supersymmetric chiral WZNW model in superspace. It involves two classical r-matrices, one of which comes from the geometrical constraints implied by $N=2$ supersymmetry. The phase space itself consists of superfields satisfying constraints involving this r-matrix. An attempt is made to relax these constraints. The symmetries of the model are investigated.Comment: 21 page

An integrable deformation of the AdS5 x S5 superstring action

An integrable deformation of the type IIB AdS5xS5 superstring action is presented. The deformed field equations, Lax connection, and k-symmetry transformations are given. The original psu (2,2\4) symmetry is expected to become q deformed.Peer reviewedSubmitted Versio

Percutaneous Coronary Interventions in Stable and Acute Coronary Syndromes: Stent technology, lesion complexity and clinical outcome

__Abstract__ Percutaneous coronary intervention (PCI) has brought a major revolution in the way we manage coronary artery disease. Since the first intervention by Andreas Grüntzig in 1977, development of the technology has been relentless and today PCI has been established as one of the major pillars of treatment of coronary heart disease alongside its medical and surgical solutions. Stent implantation during PCI has given the needed edge to PCI, not only in restoring coronary flow but moreover in maintaining it. The aim of this thesis were to : 1. Determine the long term outcome of drug eluting stent implantation compared to bare metal stents in the general PCI population and explore clinical benefits of newer generation drug eluting stents. 2. Examine the clinical outcome of drug eluting stents in patient populations prone to aggressive coronary artery disease. 3. Analyse determinants and prognostic value of myocardial no reflow after stenting in acute myocardial infarction. 4. Utilize OCT to gain further insights into intra coronary thrombus and the effects for stenting and thrombectomy in patients with STEMI. 5. Establish the usefulness of the Syntax score in risk stratification of patients presenting with ST elevation myocardial infarction. 6. Assess the outcome of drug-eluting stent implantation in bypass grafts and evaluate a dedicated stent developed for bifurcation stenting including that of the left main stem

A fast - Monte Carlo toolkit on GPU for treatment plan dose recalculation in proton therapy

In the context of the particle therapy a crucial role is played by Treatment Planning Systems (TPSs), tools aimed to compute and optimize the tratment plan. Nowadays one of the major issues related to the TPS in particle therapy is the large CPU time needed. We developed a software toolkit (FRED) for reducing dose recalculation time by exploiting Graphics Processing Units (GPU) hardware. Thanks to their high parallelization capability, GPUs significantly reduce the computation time, up to factor 100 respect to a standard CPU running software. The transport of proton beams in the patient is accurately described through Monte Carlo methods. Physical processes reproduced are: Multiple Coulomb Scattering, energy straggling and nuclear interactions of protons with the main nuclei composing the biological tissues. FRED toolkit does not rely on the water equivalent translation of tissues, but exploits the Computed Tomography anatomical information by reconstructing and simulating the atomic composition of each crossed tissue. FRED can be used as an efficient tool for dose recalculation, on the day of the treatment. In fact it can provide in about one minute on standard hardware the dose map obtained combining the treatment plan, earlier computed by the TPS, and the current patient anatomic arrangement

A lattice Poisson algebra for the Pohlmeyer reduction of the AdS_5 x S^5 superstring

The Poisson algebra of the Lax matrix associated with the Pohlmeyer reduction of the AdS_5 x S^5 superstring is computed from first principles. The resulting non-ultralocality is mild, which enables to write down a corresponding lattice Poisson algebra.Comment: 5 page

Impact of pharmacist advice on metabolic syndrome

OBJECTIVES: The aim of this study was to determine the effect of pharmacist intervention on lifestyle modifications and pharmacological treatment in overweight and obese patients suffering from metabolic syndrome. METHOD: Patients were recruited from the community setting according to the International Diabetes Federation definition inclusion criteria for metabolic syndrome. Anthropometric and biochemical tests were performed at baseline (t=0). Patients were assessed for medication compliance, occurrence of side-effects, lifestyle and risk factors using a questionnaire. Patients were re-assessed three months after pharmacist intervention (t=1). KEY FINDINGS: A total of 35 patients participated in the study. Following pharmacist intervention there was a statistically significant improvement in compliance to medications (p=0.005) and statistically significant reduction in occurrence of side-effects (p=0.009), weight (p=0.005), waist circumference (p=0.000), body mass index (p=0.005), fasting blood glucose (p=0.015), total cholesterol (p=0.001) and triglyceride (p=0.000) levels. CONCLUSION: Pharmacist intervention improved patient motivation to change their lifestyle. Pharmacists can play an important role in the management of metabolic syndrome.peer-reviewe

Finding the Higgs Boson through Supersymmetry

The study of displaced vertices containing two b--jets may provide a double discovery at the Large Hadron Collider (LHC): we show how it may not only reveal evidence for supersymmetry, but also provide a way to uncover the Higgs boson necessary in the formulation of the electroweak theory in a large region of the parameter space. We quantify this explicitly using the simplest minimal supergravity model with bilinear breaking of R-parity, which accounts for the observed pattern of neutrino masses and mixings seen in neutrino oscillation experiments.Comment: 7 pages, 7 figures. Final version to appear at PRD. Discussion and results were enlarge

Towards a quadratic Poisson algebra for the subtracted classical monodromy of symmetric space sine-Gordon theories

Symmetric space sine-Gordon theories are two-dimensional massive integrable field theories, generalising the sine-Gordon and complex sine-Gordon theories. To study their integrability properties on the real line, it is necessary to introduce a subtracted monodromy matrix. Moreover, since the theories are not ultralocal, a regularisation is required to compute the Poisson algebra for the subtracted monodromy. In this article, we regularise and compute this Poisson algebra for certain configurations, and show that it can both satisfy the Jacobi identity and imply the existence of an infinite number of conserved quantities in involution