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Operation of a Batch Stripping Distillation Column

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Chinese Journal of Chemical Engineering 2001年第2期9卷 141-144页

作者：许松林 JoseEspinosa hectore.salomone OscarA.Iribarren NationalEngineeringResearchCenterforDistillationTechnology TianjinUniversityTianjin300072China InstituteforDevelopmentandDesignINGAR ConicetSantaFeArgentina

A stripping batch distillation column is preferred when the amount of the light component in the feed is small and the products are to be recovered at high purity. The operation modes of a batch stripping are believed to be the same as those of a rectifier. However, the control system of a stripper is different. In this paper, we explore three different control methods with Hysys (Hyprotech Ltd. 1997) for a batch stripper. The main difference is the control scheme for reboiler liquid level: (a) controlled by reflux flow; (b) controlled by reboiler heat duty; (c) controlled by bottom product flow. The main characteristics of operating a batch stripper with different control scheme are presented in this paper. Guidelines are provided for the startup of a batch stripper, the effects of somecontrol tuning parameters on the column performance are discussed.

关键词： batch stripper control operation

The role of the Frontiers of Knowledge Awards in identifying the global leaders in ecological research

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Ecosystem Health and Sustainability 2017年第5期3卷 24-28页

作者： Pablo Jauregui Monica salomone Communications Department BBVA FoundationMadridSpain

Introduction:This paper outlines the origins and rationale of the Frontiers of Knowledge Awards,a new family of international prizes created in 2008 by the BBVA Foundation of *** aim of these awards is to recognize world-class contributions in a range of scientific,technological,and artistic areas which address the central challenges of the twenty-first *** key distinguishing feature is the fact that they have incorporated amongst their categories the two fundamental fields of contemporary environmental research:Ecology and Conservation Biology and Climate ***:By documenting the winners of the Frontiers of Knowledge Awards in these two areas,as well as the reasons for which they received this recognition during their previous nine editions,we show how these prizes have helped to identify some of the leading international figures in environmental science,such as Edward ***,Daniel ***,Jane Lubchenco,and Ilkka ***:In conclusion,we suggest that this initiative contributes to the public salience of the global ecological problems which threaten the future of our *** the same time,the Frontiers of Knowledge Awards serve to highlight the fundamental importance of the pioneering scientists whose research can provide the only reliable basis on which globalpolicy makers must make informed decisions to successfully confront the environmental challenges of our time.

关键词： Ecology conservation biology climate change Awards

Endoscopic ultrasound-guided biliary drainage after failed endoscopic retrograde cholangiopancreatography: The road is open for almighty biliopancreatic endoscopists!

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 2765-2768页

作者： Filippo Antonini Ilenia Merlini salomone Di Saverio Gastroenterology and Interventional Endoscopy UnitMazzoni Hospital AST Ascoli Piceno Ascoli Piceno 63100Italy Department of Surgery Madonna del Soccorso Hospital AST Ascoli PicenoSan Benedetto del Tronto 63074Italy

Commentary on the article written and published by Peng et al,investigating the role of endoscopic ultrasound(EUS)-guided biliary drainage for palliation of malignant biliary obstruction after failed endoscopic retrograde cholangiopan-creatography(ERCP).For 40 years endoscopic biliary drainage was synonymous with ERCP,and EUS was used mainly for diagnostic *** advent of therapeutic EUS has revolutionized the field,especially with the development of a novel device such as electrocautery-enhanced lumen-apposing metal *** biliopancreatic endoscopists with both skills in ERCP and in interven-tional EUS,would be ideally suited to ensure patients the best drainage technique according to each individual situation.

关键词： Cholestasis Drainage Electrocautery-enhanced lumen-apposing metal stents Endoscopic ultrasound Endosonography Endoscopic retrograde cholangiopancreatogra-phy Interventional procedures Jaundice Malignant Biliary obstruction

Trauma-induced“Macklin effect”with pneumothorax and large pneumomediastinum,disguised by allergy

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Frontiers of Medicine 2013年第3期7卷 386-388页

作者： salomone Di Saverio Kenji Kawamukai Andrea Biscardi Silvia Villani Luca Zucchini Gregorio Tugnoli Departments of Emergency and Surgery Emergency Surgery and Trauma Surgery UnitTrauma CenterMaggiore Hospital-Bologna Local Health DistrictBolognaItaly Department of Thoracic Surgery Trauma CenterMaggiore HospitalBolognaItaly Accident and Emergency Trauma CenterMaggiore HospitalBolognaItaly

A 56-year-old man presented spontaneously to the Emergency Department complaining of facial and neck oedema after assumption of nonsteroidal anti-inflammatory drugs(NSAIDS).The triage nurse assigned the patient to Accident&Emergency(A&E)doctor as probable allergic reaction to *** X-ray(CXR),ordered after 24 hours,revealed a huge subcutaneous chest and neck emphysema without clearly visible *** chest CT scan showed a small left pneumothorax and a large amount of air in the *** patient was conservatively treated since he was eupnoeic and hemodynamically *** pathophysiology of pneumomediastinum was first described by Macklin in *** Macklin effect involves alveolar ruptures with air dissection along bronchovascular sheaths to the *** this case the patient did not report in his history a recent blunt thoracic trauma and the initial suspicion of an allergic reaction has prevented physicians to immediately achieve the correct diagnosis.

关键词： thoracic trauma differential diagnosis critical care pneumothorax pneumomediastinum CT scan pitfalls lung and airways physiology

Long term results of no- alcohol laser epithelial keratomileusis and photorefractive keratectomy for myopia

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International Journal of Ophthalmology(English edition) 2015年第3期8卷 574-579页

作者： Leopoldo Spadea Francesca Verboschi Vittoria De Rosa Mariella salomone Enzo Maria Vingolo Department of Medico-Surgical Sciences and Biotechnologies Sapienza University of Rome

AIM: To evaluate the long term clinical results of mechanical no-alcohol-assisted laser epithelial keratomileusis(LASEK) versus standard photorefractive keratectomy(PRK) for low-moderate ***: Twenty-five eyes treated with LASEK and twenty-five eyes treated with PRK were evaluated with a mean follow-up duration of 60 mo. Mechanical separation of the epithelium was performed with blunt spatula and without application of alcohol. Laser ablation was performed with the MEL-70 excimer laser. All patients were examined daily until epithelial closure; at 1, 3, 6,and 12 mo, and every year subsequently. Main outcome measures were uncorrected distance visual acuity(UDVA), corrected distance visual acuity(CDVA),manifest refraction, haze, efficacy and safety ***: Twenty-one eyes and 22 eyes completed follow-up of 60 mo in LASEK and PRK group respectively. Manifest refraction at 60 mo follow-up was-0.01 and 0.26 in LASEK and PRK group respectively. In the LASEK group mean UDVA and mean CDVA after60 mo were 20/22 and 20/20 respectively(P >0.01). In the PRK group mean UDVA and mean CDVA at 60 mo follow-up were 20/20 and 20/20 after 60mo(P >0.01). The efficacy indexes were 0.87 and 0.95, and the safety indexes were1.25 and 1.4 respectively for LASEK group and PRK ***: Both standard PRK and no-alcohol LASEK offer safe and effective correction of low-moderate myopia in the long term without any statistically significant difference between the two groups.

关键词： alcohol laser epithelial keratomileusis myopia photorefractive keratectomy

Interventional treatment options for management of delayed arterial hemorrhage after major hepato-pancreatic-biliary surgery

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Hepatobiliary & Pancreatic Diseases International 2023年第6期22卷 648-649页

作者： Benedetto Ielpo Salvatore Alborino Emmanuel Melloul Fabio Salvatori Quirino Lai Massimo Rossi Nicolas Demartines salomone Di Saverio Unidad de Cirugía Hepatobiliopancreática Hospital del MarBarcelonaSpain Interventional Radiology Unit Macerata HospitalMacerataAV4ASUR MarcheItaly HBP and Liver Transplant Surgery Unit Visceral Surgery DeptCHUVUniversity of LausanneLausanneSwitzerland HBP and Liver Transplant Surgery Unit Policlinico Umberto ILa Sapienza University of RomeRomeItaly General Surgery Unit San Benedetto del Tronto HospitalSan Benedetto del TrontoAV5ASUR MarcheItaly

Hilar cholangiocarcinoma is a biliary malignancy arising from the perihilar biliary tree,which is associated with poor oncological outcomes due to its aggressive biology,chemo-resistance and insidious onset[1].As stated by Di Martino et al.,the standard of care is radical resection,and during the last decades,there have been great efforts to improve survival of potentially resectable hilar cholangiocarcinoma,with surgery being the treatment associated with longer survival[2].However,radical resection still represents a challenging operation with high risk of intraoperative and postoperative complications.

关键词： biliary surgery

Pericyte-like differentiation of human adipose-derived mesenchymal stem cells:An in vitro study

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World Journal of Stem Cells 2020年第10期12卷 1152-1170页

作者： Giuliana Mannino Florinda Gennuso Giovanni Giurdanella Federica Conti Filippo Drago Salvatore salomone Debora Lo Furno Claudio Bucolo Rosario Giuffrida Physiology Section Department of Biomedical and Biotechnological SciencesUniversity of CataniaCatania 95123Italy Pharmacology Section Department of Biomedical and Biotechnological SciencesSchool of MedicineUniversity of CataniaCatania 95123Italy Biochemistry Section Department of Biomedical and Biotechnological SciencesSchool of MedicineUniversity of CataniaCatania 95123Italy

BACKGROUND Adipose-derived mesenchymal stem cells(ASCs)are characterized by long-term self-renewal and a high proliferation *** adequate conditions,they may differentiate into cells belonging to mesodermal,endodermal or ectodermal *** support endothelial cells and play an important role in stabilizing the vessel wall at the microcirculation *** loss of pericytes,as occurs in diabetic retinopathy,results in a breakdown of the blood-retina barrier(BRB)and infiltration of inflammatory *** this context,the use of pericytelike differentiated ASCs may represent a valuable therapeutic strategy for restoring BRB *** To test in vitro strategies to obtain pericyte-like differentiation of human ASCs(hASCs).METHODS Different culture conditions were tested:hASCs cultured in a basal medium supplemented with transforming growth factorβ1;and hASCs cultured in a specific pericyte medium(PM-hASCs).In a further sample,pericyte growth supplement was omitted from the *** addition,cultures of human retinal pericytes(hRPCs)were used for ***-like differentiation of hASCs was tested by immunocytochemical staining and western blotting to evaluate the expression ofα-smooth muscle actin(α-SMA)and neural/glial antigen 2(NG2).Interactions between human retinal endothelial cells(hRECs)and different groups of hASCs were investigated in co-culture *** these cases,the expression of typical junctional proteins such as vascular endothelial-Cadherin,zonula occludens-1 and Occludin were assessed in *** an in vitro model of the BRB,values of trans-endothelial electrical resistance were measured when hRECs were co-cultured with various groups of pretreated *** values observed were compared with co-cultures of hRECs and hRPCs as well as with cultures of hRECs ***-dimensional co-cultures of hRECs and hRPCs or pericyte-like hASCs in Matrigel were designed to assess their reciprocal *** After 3-6 d of cult

关键词： Adipose-derived mesenchymal stem cells Pericyte-like differentiation Retinal endothelial cells Retinal pericytes Blood-retina barrier Junction proteins

Rapid determination of anti-estrogens by gas chromatography/mass spectrometry in urine:Method validation and application to real samples

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Journal of Pharmaceutical Analysis 2012年第1期2卷 1-11页

作者： E. Gerace A. salomone G. Abbadessa S. Racca M. Vincenti Centro Regionale Antidoping "A. Bertinaria" Regione Gonzole 10/1 10043 Orbassano Turin Italy Dipartimento di Scienze Cliniche e Biologiche Universita degli Studi di Torino Dipartimento di Chimica Analitica Universit a degli Studi di Torino

A fast screening protocol was developed for the simultaneous determination of nine antiestrogenic agents (aminoglutethimide, anastrozole, clomiphene, drostanolone, formestane, letrozole, mesterolone, tamoxifen, testolactone) plus five of their metabolites in human urine. After an enzymatic hydrolysis, these compounds can be extracted simultaneously from urine with a simple liquid–liquid extraction at alkaline conditions. The analytes were subsequently analyzed by fast-gas chromatography/ mass spectrometry (fast-GC/MS) after derivatization. The use of a short column, high-fiow carrier gas velocity and fast temperature ramping produced an efficient separation of all analytes in about 4 min, allowing a processing rate of 10 samples/h. The present analytical method was validated according to UNI EN ISO/IEC 17025 guidelines for qualitative methods. The range of investigated parameters included the limit of detection, selectivity, linearity, repeatability, robustness and extraction efficiency. High MSsampling rate, using a benchtop quadrupole mass analyzer, resulted in accurate peak shape definition under both scan and selected ion monitoring modes, and high sensitivity in the latter mode. Therefore, the performances of the method are comparable to the ones obtainable from traditional GC/MS analysis. The method was successfully tested on real samples arising from clinical treatments of hospitalized patients and could profitably be used for clinical studies on anti-estrogenic drug administration.

关键词： Anti-estrogens Fast-GC/MS Urine screening Validation Breast cancer

What paradigm shifts occurred in the management of acute diverticulitis during the COVID-19 pandemic?A scoping review

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World Journal of Clinical Cases 2021年第23期9卷 6759-6767页

作者： Gaetano Gallo Monica Ortenzi Ugo Grossi Gian Luca Di Tanna Francesco Pata Mario Guerrieri Giuseppe Sammarco salomone Di Saverio Department of Medical and Surgical Sciences University of CatanzaroCatanzaro 88011Italy Department of General and Emergency Surgery Polytechnic University of MarcheAncona 60121Italy 2^(nd)Surgery Unit Regional Hospital TrevisoDISCOGUniversity of PaduaTreviso 31100Italy The George Institute for Global Health University of New South WalesSydney 2050NSWAustralia Department of General Surgery Ospedale Nicola GiannettasioCorigliano-Rossano 87064Italy La Sapienza University Roma 00185Italy Department of General Surgery University of InsubriaUniversity Hospital of VareseVarese 21100Italy

BACKGROUND Acute colonic diverticulitis(ACD)is common in Western countries,with its prevalence increasing throughout the *** a result of the coronavirus disease 2019(COVID-19),elective surgery and in-patients’visits have been cancelled or postponed *** To systematically explore the impact of the pandemic in the management of *** MEDLINE,Embase,Scopus,MedxRiv,and the Cochrane Library databases were searched to 22 December *** which reported on the management of patients with ACD during the COVID-19 pandemic were *** cross sectional studies,outcomes of interest included the number of hospital admission for ACD,as well as key features of disease severity(complicated or not)across two time periods(pre-and during lockdown).RESULTS A total of 69 papers were inspected,and 21 were eligible for *** papers were cross sectional studies from seven world countries;six were case reports;three were qualitative studies,and two review articles.A 56%overall decrease in admissions for ACD was observed during lockdown,peaking 67%in the largest series.A 4%-8%decrease in the rate of uncomplicated diverticulitis was also noted during the lockdown *** initial non-operative management was recommended for complicated diverticulitis,and encouraged to an out-of-hospital *** initial concerns on the use of laparoscopy for Hinchey 3 and 4 patients to avoid aerosolized contamination,societal bodies have progressively mitigated their initial recommendations as actual risks are yet to be *** During the COVID-19 pandemic,fewer patients presented and were diagnosed with *** decline may have likely affected the spectrum of uncomplicated *** outpatient management and follow up for selected cases may unburden healthcare resources in time of crisis.

关键词： COVID-19 SARS-CoV-2 Acute diverticulitis Diverticular disease Hartmann