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Electrocatalytic production of glycolic acid via oxalic acid reduction on titania debris supported on a TiO_(2)nanotube array

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Journal of Energy Chemistry 2022年第5期31卷 669-678页

作者： Francesco Pio Abramo Federica De Luca Rosalba Passalacqua gabriele Centi Gianfranco Giorgianni Siglinda Perathoner Salvatore Abate Department of ChiBioFarAM(Industrial Chemistry) University of MessinaERIC aisbl and INSTM/CASPEV.le F.Stagno d’Alcontres 31Messina 98166Italy University of Calabria Department of Environmental EngineeringLaboratory of Industrial Chemistry and Catalysis Via P.Bucci87036 RendeCSItaly

Electrodes prepared by anodic oxidation of Ti foils are robust and not toxic materials for the electrocatalytic reduction of oxalic acid to glycolic acid, allowing the development of a renewable energy-driven process for producing an alcoholic compound from an organic acid at low potential and room temperature. Coupled with the electrochemical synthesis of the oxalic acid from CO_(2),this process represents a new green and low-carbon path to produce added value chemicals from CO_(2). Various electrodes prepared by anodic oxidation of Ti foils were investigated. They were characterized by the presence of a TiO_(2) nanotube array together with the presence of small patches, debris, or TiO_(2) nanoparticles. The concentration of oxygen vacancies, the amount of Ti^(3+) measured by X-ray photoelectron spectroscopy(XPS) and the intensity of the anodic peak measured by cyclic voltammetry, were positively correlated with the achieved oxalic acid conversion and glycolic acid yield. The analysis of the results indicates the presence of small amorphous TiO_(2) nanoparticles(or surface patches or debris) interacting with TiO_(2) nanotubes, the sites responsible for the conversion of oxalic acid and glycolic acid yield. By varying this structural characteristic of the electrodes, it is possible to tune the glycolic acid to glyoxylic acid relative ratio. A best cumulative Faradaic efficiency(FE) of about 84% with FE to glycolic acid around 60% and oxalic conversion about 30% was observed.

关键词： Oxalic acid TiO_(2)nanotubes Glyoxylic acid Glycolic acid Electrocatalysis

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Clinical features and treatment of sump syndrome following hepaticojejunostomy

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Hepatobiliary & Pancreatic Diseases International 2011年第3期10卷 261-264页

作者： gabriele Marangoni Amir Ali Walid Faraj Nigel Heaton Mohamed Rela King's College London School of Medicine at King's College Hospital Institute of Liver StudiesDenmark Hill

BACKGROUND:Cholangitis after Roux-en-Y hepaticojejunostomy is usually caused by anastomotic stricture.A small number of cases present without evidence of obstruction and are ascribed to reflux of gastro-intestinal content into the biliary tree above the anastomosis (sump syndrome).Despite prophylactic rotating antibiotic therapy,the cholangitic episode may be severe and ***:From 2001 to 2006,six patients who had undergone an end-to-side hepaticojejunostomy presented to our institution with recurrent episodes of biliary *** stricture was excluded by liver MRI/MRCP and percutaneous transhepatic cholangiogram (PTC).Barium meal showed reflux of contrast into the biliary tree in all *** patients had a short jejunal Roux limb (less than 50 cm) on pre-operative ***:Five patients underwent surgery and two of them had two *** patient had a Tsuchida antireflux valve and subsequently underwent lengthening of the Roux *** patients had lengthening of the Roux loop;one underwent re-do hepaticojejunostomy and one had concomitant revision of the hepaticojejunostomy and lengthening of the Roux *** latter underwent further lengthening of the Roux *** patients are cholangitis-free 6,36 and 60 months after surgery;two still experience mild episodes of ***:An adequate length of the Roux loop is important to prevent ***,Roux loop lengthening to 70 cm or more does not always resolve the problem and cholangitis,although generally less frequent and severe,may recur despite appropriate reconstructive or antireflux *** these cases,life-long rotating antibiotics is the only available measure.

关键词： biliary tract surgical procedures biliary tract disease septicemia

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In memory of Professor David Alexander Yuen

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Earthquake Research Advances 2024年第2期4卷 1-6页

作者： gabriele Morra Henry M.Tufo Ⅲ Department of Physics University of Louisiana at Lafayette 104 E University AveLafayette70504LouisianaUSA Department of Computer Science University of Colorado at BoulderBoulderCO80309USA

David Alexander Yuen was born on June 14,1948,in Shanghai during the Chinese Civil *** family moved to Hong Kong the following *** to the help of Senator Mike Mansfield,a Democrat from Montana,who met Dave's father during World War II,the entire family of seven moved to New York City in *** showed much enthusiasm as a student,graduating from Xavier High School in Lower Manhattan in 1965,along with other successful Americans such as Supreme Court Justice Antonin *** proceeded to Caltech to study chemical physics and then moved to the chemistry department at the University of California,Berkeley in 1969,where the beginning of the plate tectonics revolution inspired him to change his focus to geophysics.

关键词： Berkeley moved Lower

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COVID-19 Vaccine Priority Access for Adults and Children with Congenital Heart Disease: A Statement of the Italian Society of Pediatric Cardiology

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Congenital Heart Disease 2021年第5期16卷 427-431页

作者： gabriele Egidy Assenza Biagio Castaldi Serena Flocco Giovanni Battista Luciani Giovanni Meliota gabriele Rinelli Ugo Vairo Silvia Favilli Board of the Italian Society of Pediatric Cardiology Department of Cardio-Thoracic and Vascular Medicine IRCCS Azienda Ospedaliero-Universitaria di BolognaBolognaItaly Department of Women’s and Children’s Health University of PadovaPadovaItaly Health Professions Research and Development Unit IRCCS Policlinico San DonatoMilanoItaly Department of Surgery DentistryPediatrics and GynecologyUniversity of VeronaVeronaItaly Pediatric Cardiology ‘Giovanni XXIII’Pediatric HospitalBariItaly Department of Pediatric Cardiology and Cardiac Surgery ‘Ospedale Pediatrico Bambino Gesu’RomaItaly Pediatric Cardiology ‘A.Meyer’Pediatric HospitalFirenzeItaly 不详

COVID-19 pandemic continues to strike across the world with increasing number of infected patients,severe morbidity and mortality,social life and economy *** access to vaccine prophylaxis will be pivotal in controlling this infection and providing individual level ***,mismatch between vaccine request and vaccine availability,as well as constraints in logistics of vaccine campaign is creating a transition phase of progressive but still incomplete inclusion of group of individuals in the vaccination *** patients living with chronic and multisystemic disease may present increased propensity of adverse outcome,should Sars-Cov-2 infection *** these patients,expedite access to COVID-19 vaccination may be *** Italian Society of Pediatric Cardiology National Board is providing a viewpoint to inform policy makers and public authorities during vaccine allocation strategies development,to consider higher priority and expedite access for selected groups of patients living with congenital heart disease.

关键词： COVID-19 vaccine congenital heart disease

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A snapshot into the future of image-guided surgery for renal cancer

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Asian Journal of Urology 2022年第3期9卷 201-203页

作者： Enrico Checcucci gabriele Volpi Department of Surgery Candiolo Cancer InstituteFPOIRCCSCandioloTurinItaly Department of OncologyDivision of UrologyUniversity of TurinTurinItaly Uro-technology and SoMe Working Group of the Young Academic Urologists(YAU)Working Party of the European Association of Urology(EAU) Arnhemthe Netherlands Daniele Amparore Department of Oncology Division of UrologyUniversity of TurinTurinItaly Renal Cancer Working Group of the Young Academic Urologists(YAU)Working Party of the European Association of Urology(EAU) Arnhemthe Netherlands Francesco Porpiglia Department of Oncology Division of UrologyUniversity of TurinTurinItaly

Robot-assisted partial nephrectomy(RAPN)is certainly one of the most fascinating and complex urological *** is ascribable to its vast heterogeneity from one case to another,related to patient’s anatomical variability and tumour’s *** the last years,with the aim to assist the surgeons in handling ever more difficult lesions(totally endophytic or large volume[1,2])suitable for RAPN,several technologies were proposed and tested,from preoperative planning to intraoperative assistance or navigation[3].

关键词： image surgery totally

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Experimental and computational study of smoke dynamics from multiple fire sources inside a large-volume building

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Building Simulation 2021年第4期14卷 1147-1161页

作者： gabriele Vigne Wojciech Węgrzyński Alexis Cantizano Pablo Ayala Guillermo Rein Cándido Gutiérrez-Montes Fluid Dynamics Division of the Department of Mining and Mechanical Engineering Universidad de JaénJaénSpain Institute for Research in Technology ICAIUniversidad Pontificia ComillasMadridSpain Building Research Institute(ITB) WarsawPoland Imperial College London LondonUK JVVA Fire&Risk MadridSpain

Fire in large-volume buildings poses separate and distinct challenges from compartmented *** particular,the risk it poses on life safety is mostly due to the smoke it produces,its effects on the evacuation process,and how it can affect the firefighters when they approach the building to fight the fire and rescue the *** is why smoke control in large-volume enclosures is of utter importance for life safety,property protection and business *** research presents an experimental and numerical study of the smoke dynamics from four fire sources(combined heat release rate of 5.2 MW)with different ignition times and under transient ventilation conditions,inside a 20 m high cubic *** measurements in the plume and close to the walls have been recorded using 59 *** data was used in the determination of the smoke layer interface height,with the least-square and the N-Percent *** show that significantly worse conditions are induced by multiple sources than those in a single fire of equal *** results have been obtained using the computational fluid dynamics code FDS(Fire Dynamics Simulator,v6.7.1).The comparison shows that in the far field the temperature predictions are accurate inside the smoke layer(10 m and 15 m)with discrepancies lower than 10%,whereas higher significant discrepancies were observed at the smoke layer interface,i.e.5 m high,with discrepancies up to 20%.Furthermore,a grid analysis has been performed showing that grid resolutions,D*/δ,based on the global HRR of the fire might be sufficient to predict the fire induced conditions far from the *** analysis confirmed the applicability of FDS to the assessment of the smoke dynamics under complex fire conditions away from ***,the present work shows the importance of considering fires with multiple sources due to the faster smoke production compared with single fires.

关键词： experiments simulation fire buildings FDS CFD

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A perspective on carbon materials for future energy application

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Journal of Energy Chemistry 2013年第2期22卷 151-173页

作者： Dang Sheng Su gabriele Centi Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Dipartimento di Ingegneria Elettronica Chimica ed Ingegneria Industriale University of Messina and INSTM/CASPE (Laboratory of Catalysis for Sustainable Production and Energy) V. le F. Stagno D'Alcontres 31 98166 Messina Italy

Nanocarbon materials play a critical role in the development of new or improved technologies and devices for sustainable production and use of renewable energy. This perspective paper defines some of the trends and outlooks in this exciting area, with the effort of evidencing some of the possibilities offered from the growing level of knowledge, as testified from the exponentially rising number of publications, and putting bases for a more rational design of these nanomaterials. The basic members of the new carbon family are fullerene, graphene, and carbon nanotube. Derived from them are carbon quantum dots, nanohorn, nanofiber, nano ribbon, nanocapsulate, nanocage and other nanomorphologies. Second generation nanocarbons are those which have been modified by surface functionalization or doping with heteroatoms to create specific tailored properties. The third generation of nanocarbons is the nanoarchitectured supramolecular hybrids or composites of the first and second genera- tion nanocarbons, or with organic or inorganic species. The advantages of the new carbon materials, relating to the field of sustainable energy, are discussed, evidencing the unique properties that they offer for developing next generation solar devices and energy storage solutions.

关键词： nanocarbon CNT graphene hybrid carbon materials sustainable energy energy storage and conversion solar cells Li-batteries supercapac-itors

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Resected specimen evaluation,anorectal manometry,endoanal ultrasonography and clinical follow-up after STARR procedures

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World Journal of Gastroenterology 2011年第19期17卷 2411-2416页

作者： gabriele Naldini Guido Cerullo Claudia Menconi Jacopo Martellucci Simone Orlandi Nicola Romano Mauro Rossi Fourth Unit of Surgery Santa Chiara Hospital of Pisa Department of General Surgery University of Siena-Policlinico Le Scotte

AIM:To investigate stapled transanal rectal resection (STARR) procedures as surgical techniques for obstructed defecation syndrome (ODS) by analyzing specimen evaluation,anorectal manometry,endoanal ultrasonography and clinical ***:From January to December 2007,we have treated 30 *** treated with double PPH-01 staplers and 15 treated using new CCS 30 *** specimen were measured with respect to average surface and *** patients have been evaluated at 24 mo with clinical examination,anorectal manometry and endoanal ***:Average surface in the CCS 30 group was 54.5 cm2 statistically different when compared to the STARR group (36.92 cm2).The average volume in the CCS 30 group was 29.8 cc,while in the PPH-01 it was23.8 cc and difference was statistically *** mean hospital stay in the CCS 30 group was 3.1 d,while in the PPH-01 group the median hospital stay was 3.4 *** regards the long-term follow-up,an overall satisfactory rate of 83.3% (25/30) was *** ultrasonography performed 1 year following surgery was considered normal in both of the studied *** resting pressure was higher than the preoperative value (67.2 mmHg in the STARR group and 65.7 mmHg in the CCS30 group vs 54.7 mmHg and 55.3 mmHg,respectively).Resting and squeezing pressures were lower in those patients not satisfied,but data are not statistically ***:The STARR procedure with two PPH-01 is a safe surgical procedure to correct *** new Contour CCS 30 could help to increase the amount of the resected tissue without differences in early complications,post-operative pain and in hospital stay compared to the STARR with two PPH-01 technique.

关键词： Stapled transanal rectal resection Contour CCS Obstructed defecation

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Gastric duplication associated with pancreas divisum diagnosed by a multidisciplinary approach before surgery

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World Journal of Gastroenterology 2010年第8期16卷 1031-1033页

作者： Marta Di Pisa gabriele Curcio Gianluca Marrone Mariapina Milazzo Marco Spada Mario Traina Mario Traina Gastroenterology Service Department of Radiology IsMeTT-UPMC Department of Surgery IsMeTT-UPMC

We report a unique case of communicating gastric duplication associated with pancreas divisum,diagnosed with a multidisciplinary approach,including X-rays,computed tomography,magnetic resonance imaging,esophagogastro duodenoscopy,ultrasound endoscopy and histology. We believe that this approach constitutes a fuller diagnostic evaluation,resulting in better and safer surgery.

关键词： Gastric duplication Pancreas divisum Computed tomography Magnetic resonance imaging Ultra-sonic endoscopy

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Pre-illness changes in dietary habits and diet as a risk factor for inflammatory bowel disease: A case-control study

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World Journal of Gastroenterology 2010年第34期16卷 4297-4304页

作者： Giovanni Maconi Sandro Ardizzone Claudia Cucino Cristina Bezzio Antonio Giampiero Russo gabriele Bianchi Porro Department of Clinical Sciences L. Sacco University Hospital Endoscopy Unit Istituto Clinico Santa Rita 20131 Milan Italy Epidemiology and Biostatistics Unit San Carlo Borromeo Hospital

AIM: To evaluate whether symptoms of inflammatory bowel disease (IBD), before diagnosis modify dietary habits, and to investigate the pre-illness diet in patients with recent IBD in comparison with an age-matched healthy control group. METHODS: Overall, 83 new cases of IBD (41 ulcerative colitis, 42 Crohn's disease) and 160 healthy controls were studied. Portions per week of 34 foods and beverages before onset of symptoms were recorded using a validated questionnaire. Duration of symptoms before IBD diagnosis, presence of specific symptoms and their impact on subjective changes in usual dietary habits were also recorded. The association between diet and IBD was investigated by multiple logistic regression and dietary patterns were assessed by factor analysis. RESULTS: Changes in dietary habits, due to the presence of symptoms, were reported by 38.6% of patients and were not significantly related to specific symptoms, rather to long duration of symptoms, only in Crohn's disease patients. In IBD patients who did not change dietary habits, moderate and high consumption of margarine (OR = 11.8 and OR = 21.37) was associated with ulcerative colitis, whilst high consumption of red meat (OR = 7.8) and high intake of cheese were associated with Crohn's disease. CONCLUSION: More than one third of IBD patients change dietary habits before diagnosis. Margarine, red meat and cheese increase the risk of ulcerative colitis and Crohn's disease.

关键词： Inflammatory bowel diseases Diet Symptoms Factor analysis

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