Non Uniqueness of Power-Law Flows.

We apply the technique of convex integration to obtain non-uniqueness and existence results for power-law fluids, in dimension d ≥ 3 . For the power index q below the compactness threshold, i.e. q ∈ ( 1 , 2 d d + 2 ) , we show ill-posedness of Leray-Hopf solutions. For a wider class of indices q ∈ ( 1 , 3 d + 2 d + 2 ) we show ill-posedness of distributional (non-Leray-Hopf) solutions, extending the seminal paper of Buckmaster & Vicol [10]. In this wider class we also construct non-unique solutions for every datum in L 2 .

Non-uniqueness for the Transport Equation with Sobolev Vector Fields.

We construct a large class of examples of non-uniqueness for the linear transport equation and the transport-diffusion equation with divergence-free vector fields in Sobolev spaces W 1 , p .

Class III gynecomastia in pediatric age: a new modified surgical treatment.

BACKGROUND: Prepubertal gynecomastia is an extremely rare condition usually requiring surgical treatment, especially in case of class III gynecomastia. This study presents cases treated with a new surgical treatment. METHODS: From 2010 at our institution, gynecomastia is treated surgically using a modified technique of periareolar incision. Aesthetic results and possible complications of this technique are reported. RESULTS: Five patients were treated at the authors' unit for class III gynecomastia between January 2010 and December 2011. All patients were properly treated without the need of further surgery for skin resection. One patient developed seroma, treated with suction; one patient showed hematoma, treated with hot packs for 3 weeks. All patients and their parents were satisfied of the aesthetic results obtained. All patients resumed sport activities 4 weeks after surgery. It was not possible to observe intraoperative complications. CONCLUSION: The technique used meets safety and efficacy standards for the treatment of this type of pediatric gynecomastia. It also offers the best possible aesthetic results with minimum complications which can be treated without the need of further surgery.

[Surgical treatment of breast tumors in patients after mammography screening. Personal experience in the first 3 years of operation of the screening program in the province of Verona]. / Il trattamento chirurgico dei tumori della mammella nelle pazienti sottoposte a screening mammografico. Esperienza personale nei primi tre anni di attività del programma di screening nella provincia di Verona.

A mammographic screening program was started in 1999 in the Province of Verona and was offered to women aged 50-69. The purpose of this study was to analyse and compare our data, particularly the type of surgery and histotype, with the literature data where no screening program was implemented. During the first three years of the screening, 113 patients underwent surgical treatment in our Institute. The histology of the mammary lesions was benign neoplasia in 28 (24.7%) and breast cancer in 85 (75.3%) patients. Seventy-three women (85.9%) with malignant neoplasms were submitted to conservative treatment. Mastectomy was performed in 12 (14.1%) patients, 8 of whom with immediate breast reconstruction. Patients coming from screening programs benefit in a high percentage of cases from conservative treatment, which, together with the reduced aggressiveness of the cancers, permits alternative treatments for the axillary lymph nodes and a reduction in adjuvant chemotherapy.