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Thermal Radiation Modelling in Tunnel Fires

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Advances in Applied Mathematics and Mechanics 2011年第3期3卷 327-353页

作者： Paolo Ciambelli Maria grazia Meo Paola Russo Salvatore Vaccaro Department of Industrial Engineering University of Salernovia Ponte don Melillo 84084 Fisciano(SA)Italy

Modelling based on Computational Fluid Dynamics(CFD)is by now effectively used in fire research and hazard *** on the scenario,radiative heat transfer can play a very important role in enclosure combustion events such as tunnel *** this work,the importance of radiation and the effect of the use of different approaches to account for it were ***,small-scale tunnel fire simulations were performed and the results compared with experimental data,then realistic full-scale scenarios were *** results show up the capability of CFD modelling to reproduce with good approximation tunnel *** proved to be noteworthy mainly when the scale of the fire is relatively *** the various approaches employed to simulate radiation,the use of the Discrete Transfer model gave the most accurate results,mainly when the absorption-emission characteristics of the combustion products were taken into ***,the suitability of the use of CFD in quantitative Fire Hazard Analysis is discussed.

关键词： CFD radiation modelling fire hazard analysis tunnel fires

Pediatric non-alcoholic fatty liver disease: Recent solutions, unresolved issues, and future research directions

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World Journal of Gastroenterology 2016年第36期22卷 8078-8093页

作者： Maria grazia Clemente Claudia Mandato Marco Poeta Pietro Vajro Pediatric Clinic Department of SurgicalMicrosurgical and Medical SciencesUniversity of Sassari07100 SassariItaly Pediatrics of AORN Santobono-Pausilipon 80123 NaplesItaly Pediatrics Department of MedicineSurgery and Dentistry'Scuola Medica Salernitana'University of Salerno84081 BaronissiItaly ELFID European Laboratory for the Investigation of Food Induced Disease 80138 NaplesItaly

Non-alcoholic fatty liver disease(NAFLD) in children is becoming a major health concern. A "multiple-hit" pathogenetic model has been suggested to explain the progressive liver damage that occurs among children with NAFLD. In addition to the accumulation of fat in the liver, insulin resistance(IR) and oxidative stress due to genetic/epigenetic background, unfavorable lifestyles, gut microbiota and gut-liver axis dysfunction, and perturbations of trace element homeostasis have been shown to be critical for disease progression and the development of more severe inflammatory and fibrotic stages [non-alcoholic steatohepatitis(NASH)]. Simple clinical and laboratory parameters, such as age, history, anthropometrical data(BMI and waist circumference percentiles), blood pressure, surrogate clinical markers of IR(acanthosis nigricans), abdominal ultrasounds, and serum transaminases, lipids and glucose/insulin profiles, allow a clinician to identify children with obesity and obesity-related conditions, including NAFLD and cardiovascular and metabolic risks. A liver biopsy(the "imperfect" gold standard) is required for a definitive NAFLD/NASH diagnosis, particularly to exclude other treatable conditions or when advanced liver disease is expected on clinical and laboratory grounds and preferably prior to any controlled trial of pharmacological/surgical treatments. However, a biopsy clearly cannot represent a screening procedure. Advancements in diagnostic serum and imaging tools, especially for the non-invasive differentiation between NAFLD and NASH, have shown promising results, e.g., magnetic resonance elastography. Weight loss and physical activity should be the first option of *** pharmacological treatments are still under development; however, drugs targeting IR, oxidative stress, proinflammatory pathways, dyslipidemia, gut microbiota and gut liver axis dysfunction are an option for patients who are unable to comply with the recommended lifestyle changes

关键词： Non-alcoholic fatty liver disease Childhood obesity Non-alcoholic steatohepatitis Hepatic metabolic syndrome Non-alcoholic fatty liver disease diagnosis

Burden of Cardiometabolic Risk Factors on Cerebrovascular Events in a Southern Italian Population

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World Journal of Cardiovascular Diseases 2021年第2期11卷 145-152页

作者： Vincenzo Capuano Federica Marchese Rocco Capuano Anna grazia Iannone Norman Lamaida Ernesto Capuano Raffaella Sica Marzia Manilia Eduardo Capuano Operating Unit of Cardiology and UTIC Mercato S. Severino Hospital Azienda Ospedaliera Universitaria di Salerno Salerno Italy

Background: Stroke is the second leading cause of death in the world and the third due to disability. However, there are few data available that identify the risk factors associated with it and their weight in different populations (population risk). Aim: Contribute to the knowledge of burden risk factors in stroke in a large cohort of Southern Italy. Methods: The data refer to a randomized Campania cohort of 1200 subjects (35 - 74 years) enrolled in 2008-09. Ten years later (2018-19) they were re-evaluated. We analyzed data from 32 patients who reported a cerebrovascular event (stroke or TIA) with the event-free group of subjects (804 subjects: 378 men and 426 women). We evaluated: absolute risk, Odds Ratio (OR), Additional Risk (AR), Risk Attributable to the Population (PAR) and, finally, the Population Attributable risk Fraction (FAP). Results: In the comparison between the two groups (patients with events and patients without events) the risk factors with statistically significant differences were: age, Systolic Blood Pressure (SBP), BMI, cholesterol, triglycerides, glycemia and hyperinsulinemia. The ORs with the greatest impact were: blood glucose (5.1), BMI (3.3) and BPS (2.9). Linear regression analysis identified Glycemia and BMI as the only independent variables. The FAPs with the

关键词： Cerebrovascular Risk Factors Southern Italy Risk Attributable to the Popula-tion

Trend in prevalence of uncontrolled total serum cholesterol for cardio-cerebro-vascular disease in a mediterranean area, 1988/89-2008/09

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World Journal of Cardiology 2013年第11期5卷 420-425页

作者： Vincenzo Capuano Norman Lamaida Ernesto Capuano Maria Immacolata Borrelli Rocco Capuano Elisabetta Notari Anna grazia Iannone Federica Marchese Matteo Sonderegger Eduardo Capuano Department of Cardiovascular Diseases University Hospital of Salerno-Mercato S.Severino Hospital Local Health Authority

AIM: To examine trends of uncontrolled total serum cholesterol, treatment and control in a Mediterranean region(Campania). METHODS: We considered and compared the data collected as part of "Montecorvino Rovella Project" 1988-1989 and cross-sectional data from the two phases of the "VIP Project-Valle dell'Irno Prevenzione": 1998-1999(1stphase) and 2008-2009(2ndphase), in the 35-74-year-old-population. RESULTS: Data show a reduction of mean cholesterolemia in the last twenty years of 7.3 mg/dL for men and unchanged values for women. In the three surveys the mean values for serum cholesterol are in men: 205.2 ±47.1 mg/dL(1988/89), 200 ± 38.9 mg/dL(1998/99) and 197.9 ± 40.2 mg/dL(2008/09); in the women: 203.1 ± 42.5 mg/dL(1988/89), 198.9 ± 37.9 mg/dL(1998/99) and 203.3 ± 39.3 mg/dL(2008/09). Prevalence of uncontrolled high cholesterol ≥ 240 mg/dL for men decreased from 20.8%(1988/89) to 14.3%(1998/99) and 13.9%(2008/9), P = 0.002; for women the values decreased from 19.9%(1988/89), to 18.2%(1998/99) and 18.1%(2008/09), P = 0.007. Is statistically increased the number of patients treated and those treated to target. CONCLUSION: Encouraging increases in awareness, treatment, and control of hypercholesterolemia occurred from 1988 through 2008. Nevertheless, control of hypercholesterolemia remains poor.

关键词： Mediterranean diet Hypercholesterolemia Drug Heart disease Southern Italy