Quons Restricted to the Antisymmetric Subspace: Formalism and Applications

In this work we develop a formalism to treat quons restricted to the antisymmetric part of their many-body space. A model in which a system of identical quons interact through a pairing force is then solved within this restriction and the differences between our solution and the usual fermionic model solution are then presented and discussed in detail. Possible connections to physical systems are also considered.Comment: 12 pages, 3 figure

Applications of the Quon Algebra: 3-D Harmonic Oscillator and the Rotor Model

In this work we present a method to build in a systematic way a many-body quon basis state. In particular, we show a closed expression for a given number N of quons, restricted to the permutational symmetric subspace, which belongs to the whole quonic space. The method is applied to two simple problems: the three-dimensional harmonic oscillator and the rotor model and compared to previous quantum algebra results. The differences obtained and possible future applications are also discussed.Comment: 13 pages, 2 figure

Quons as su(2) Irreducible Tensor Operators

We prove that, for the quon algebra, which interpolates between the Bose and Fermi statistics and depends on a free parameter q,it is possible to build an su(2) irreducible representation. One of the consequences of this fact is that the quons couple via the same angular momentum coupling rules obeyed by ordinary bosons and fermions.Comment: 8 pages,Late

Compositeness Effects in the Bose-Einstein Condensation

Small deviations from purely bosonic behavior of trapped atomic Bose-Einstein condensates are investigated with the help of the quon algebra, which interpolates between bosonic and fermionic statistics. A previously developed formalism is employed to obtain a generalized version of the Gross-Pitaeviskii equation. Two extreme situations are considered, the collapse of the condensate for attractive forces and the depletion of the amount of condensed atoms with repulsive forces. Experimental discrepancies observed in the parameters governing the collapse and the depletion of the condensates can be accounted for by universal fittings of the deformation parameter for each case.Comment: 17 pages, 1 tabl

“La prima cosa bella”: uno sguardo alle cure palliative

The encounter of bioethics, law and cinema offers the opportunity to turn a new regard toward biomedical issues. Among these issues, palliative care is a subject that appears through recent publications of laws on this field. The theme of the end of life is challenged between screen and reality. As a point of reference for this brief discussion, the Italian film La prima cosa bella gives a delicate and sensitive look at human relationships involving assistance to terminally ill patients and healthcare structure directed to their support

Implement exercise in the oncological setting

Over the past 20 years, the understanding of the role of physical activity in cancer has been increased. Traditionally, patients were advised to rest, recovery, and save energy during and after anticancer treatments. Nevertheless, it is now clear that physical activity may help alleviate some side effects caused by therapies and a sedentary lifestyle; consequently, cancer patients should be encouraged to perform exercise. Epidemiological evidence shows that post-diagnosis physical activity is associated with enhancing patients \u2018survival, especially in breast, colon, and prostate cancer. In cancer patients, exercise acts by improving health-related skills, particularly cardiorespiratory fitness, strength, and body composition. Moreover, several trials demonstrated that a regular exercise program effectively relieves some cancer and treatments \u2018side effects, such as fatigue, nausea, and vomiting, thereby improving patients\u2019 quality of life. The last update of the American College of Sports Medicine\u2019 guidelines recommends that patients perform 90 minutes per week of aerobic exercise at moderate intensity, with strength activities twice a week. Despite these important benefits, in Italy, the spread of exercise-oncology programs and the research in the exercise oncology field are still poor, negatively impacting patients and producing a gap in the literature. The purpose of this thesis is trying to fill this gap, increasing the available literature, and proposing an exercise program based on patients\u2019 needs and the current guidelines. Chapter one is dedicated to a brief introduction about physical activity in cancer. In chapters two, three, four, and five, the experimental studies that led to the development of patient-centred exercise program are presented. Chapters six and seven report two other studies investigating exercise as part of the multimodal approach in counteracting cancer cachexia. The last chapter is dedicated to a summary of the main thesis results

The neutron star inner crust and symmetry energy

The cell structure of clusters in the inner crust of a cold \beta-equilibrium neutron star is studied within a Thomas Fermi approach and compared with other approaches which include shell effects. Relativistic nuclear models are considered. We conclude that the symmetry energy slope L may have quite dramatic effects on the cell structure if it is very large or small. Rod-like and slab-like pasta clusters have been obtained in all models except one with a large slope L.Comment: 16 pages, 5 figure