- Numerical methods for differential equations
- Matrix Theory and Algorithms
- Advanced Numerical Methods in Computational Mathematics
- Esophageal and GI Pathology
- Gastroesophageal reflux and treatments
- Computational Fluid Dynamics and Aerodynamics
- Gastric Cancer Management and Outcomes
- Eosinophilic Esophagitis
- Model Reduction and Neural Networks
- Mathematical and Theoretical Epidemiology and Ecology Models
- COVID-19 epidemiological studies
- Evolution and Genetic Dynamics
- Congenital Diaphragmatic Hernia Studies
- Metastasis and carcinoma case studies
- Tracheal and airway disorders
- Diverticular Disease and Complications
- Advanced Control Systems Optimization
- Differential Equations and Numerical Methods
- Colorectal Cancer Surgical Treatments
- HIV Research and Treatment
- Pelvic floor disorders treatments
- Gastrointestinal Tumor Research and Treatment
- Dysphagia Assessment and Management
- Anorectal Disease Treatments and Outcomes
- Nausea and vomiting management
University of Naples Federico II
2014-2024
Istituto Nazionale di Alta Matematica Francesco Severi
2015-2023
University of Campania "Luigi Vanvitelli"
2005-2018
Arizona State University
2015-2016
AGH University of Krakow
2015-2016
Hiroshima University Hospital
2009
Istituto per le Applicazioni del Calcolo Mauro Picone
2003
This prospective, randomized, controlled trial was designed to compare the clinical, functional, and morphologic results of pneumatic balloon dilatation with lateral internal sphincterotomy for treatment chronic anal fissure.All patients symptomatic fissure were randomly assigned or invited complete a standardized questionnaire inquiring about their symptoms. Anal ultrasonography manometry performed before six months after surgery. A proctologic examination between fifth sixth postoperative...
Sexual hormones play an important role in expression of genes involved a wide variety biological and neoplastic processes. The information on Estrogen Receptors (ER) non-target tissues is very few and, particular, the studies head neck tumors are still controversial. Recent analyzed Tamoxifen (TAM) Oral Squamous Cell Carcinoma (OSCC) lines relation to presence/absence ER. purpose present study was evaluate sexual receptors mRNAs, particular Receptor alpha (ERα) Androgen (AR) mRNA OSCC...
In this paper, by applying a variation of the backward Euler method, we propose discrete-time SIR epidemic model whose discretization scheme preserves global asymptotic stability equilibria for class corresponding continuous-time models. Using analogue Lyapunov functionals, is fully determined basic reproduction number , when infection incidence rate has suitable monotone property.
Although minimally invasive repair of giant hiatal hernias is a very surgical challenge which requires advanced laparoscopic learning curve, several reports showed that safe and effective procedure, with lower morbidity than open approach. In the present study we show outcomes 13 patients who underwent hernia. A total posterior hiatoplasty Nissen fundoplication. Follow-up evaluation was done clinically at intervals 3, 6 12 months after surgery using Gastro-oesophageal Reflux Health-Related...
A large number of Asian population studies examined the difference between 6th and 7th tumor, node, metastasis (TNM) while it is still poorly validated among Caucasian populations. This a retrospective study aimed at investigating efficacy edition American Joint Committee on Cancer (AJCC)/Union for International Control (UICC) staging system gastric cancer focusing "N" parameter-related survival prognostic assessment in patients single Western high-volume institution. From January 2002 to...
We investigate the resolution of parabolic PDEs via Extreme Learning Machine (ELMs) Neural Networks. An Artificial Network (ANN) is an interconnected group nodes -where activation functions act- organized in numbered layers. From a mathematical point view, ANN represents combination that linear if only one hidden layer admitted. In present paper, ELMs setting considered, and this gives single admitted can be trained at modest computational cost as compared to Deep Our approach addresses time...
We present a set of difference equations which generalizes that proposed in the work G. Izzo and A. Vecchio (2007) represents discrete counterpart larger class continuous model concerning dynamics an infection organism or host population. The limiting behavior this new is studied threshold parameter playing role basic reproduction number derived.
To determine the prevalence and characteristics of bile reflux in gastroesophageal disease (GERD) patients with persistent symptoms who are non-responsive to medical therapy.Sixty-five (40 male, 25 female; mean age, 50 +/- 7.8 years) continued report after 8 wk high-dose proton pump inhibitor (PPI) therapy, as well 18 Barrett's esophagus, were studied. All filled out symptom questionnaires underwent endoscopy, manometry combined pH-metry bilimetry.There 4 groups patients: 22 (26.5%) without...