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Enlarged pancreas: not always a cancer

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Hepatobiliary & Pancreatic Diseases International 2015年第1期14卷 107-108页

作者： Lucia Calculli davide Festi Raffaele Pezzilli Departments of Radiology Sant'Orsola-Malpighi Hospital Digestive Diseases Sant'Orsola-Malpighi Hospital Internal Medicine Sant'Orsola-Malpighi Hospital

Pancreatic fat accumulation has been described with various terms including pancreatic lipomatosis, pancreatic steatosis, fatty replacement, fatty infiltration, fatty pancreas, lipomatous pseudohypertrophy and nonalcoholic fatty pancreas disease. It has been reported to be associated with type 2 diabetes mellitus, acute pancreatitis, pancreatic cancer and the formation of pancreatic fistula. The real incidence of this condition is still unknown. We report a case of pancreatic steatosis in a non-obese female patient initially diagnosed with a mass in the head of the pancreas. Magnetic resonance imaging（MRI） was carried out to define the characteristics of the pancreatic mass. MRI confirmed the diagnosis of fat pancreas. Enlarged pancreas is not always a cancer, but pancreatic steatosis is characterized by pancreatic enlargement. MRI could give a definite diagnosis of pancreatic steatosis or cancer.

关键词： pancreatic steatosis magnetic resonance image computer tomography IgG4 differential diagnosis clinical course

Factors Controlling the Extent of Contact Metamorphic Aureoles as Deduced by Field Evidence in the Western Alps

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地学前缘 2009年第S1期16卷 208-209页

作者： davide Zanoni Department of Geology University of New Brunswick2Bailey Drive

The shallow Biella and Traversella late-orogenic plutons are intruded in the Sesia Lanzo Zone(SLZ) the innermost structural element of the Western Alpine arc,a continental unit that records a pervasive metamorphic imprint related to the Alpine subduction. The country rocks consist of metapelites with minor metagranitoids,meta-aplites,metabasites and marbles. The pre-intrusive pervasive metamorphic imprint developed under eclogite facies conditions. The ductile syn-metamorphic deformation

关键词： Western Alps Sesia Lanzo Zone Biella and Traversella plutons contact metamorphism

带小直径纵筋并外包CFRP的RC圆墩抗震性能研究

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中国公路学报 2022年第2期35卷 124-135页

作者：薛俊青 davide Lavorato 聂尚杰陈俊臻 BRISEGHELLA Bruno NUTI Camillo 福州大学土木工程学院福建福州350108 福州大学福建省土木工程多灾害防治重点实验室福建福州350108 罗马第三大学建筑学院拉齐奥大区罗马00184

桥梁震害调查显示,钢筋混凝土(RC)桥墩易受损,影响震后救援和灾后重建。采用小直径纵筋替换受损纵筋并外包碳纤维布(CFRP)的技术修复受损桥墩可缩短震后修复周期,节省重建费用。以某不规则连续梁桥的RC圆墩为工程背景,选择小直径纵筋的... 详细信息

桥梁震害调查显示,钢筋混凝土(RC)桥墩易受损,影响震后救援和灾后重建。采用小直径纵筋替换受损纵筋并外包碳纤维布(CFRP)的技术修复受损桥墩可缩短震后修复周期,节省重建费用。以某不规则连续梁桥的RC圆墩为工程背景,选择小直径纵筋的长度和直径、外包CFRP层数为参数,开展7根缩尺比例为1∶6的RC圆墩试件的拟静力试验;选用OpenSees建立有限元模型,采用试验结果验证其准确性,并开展参数分析。研究结果表明:设置小直径纵筋的桥墩的塑性变形集中在小直径纵筋高度范围内,桥墩破坏被限制在塑性铰区域内;与未设置小直径纵筋的桥墩相比,小直径纵筋使桥墩承载力降低20%~27%,但桥墩位移延性提高42%~85%,曲率延性提高47%~242%,耗能性能提高32%~56%;在满足桥墩承载力设计要求的情况下,使用小直径纵筋可有效提高桥墩抗震性能;设置小直径纵筋的桥墩在小直径纵筋区域内的实测CFRP最大应变明显大于未设置的试件,说明对设置小直径纵筋的桥墩外包CFRP,可防止桥墩过早破坏,提高延性;随着小直径纵筋长度增大或直径减小,桥墩耗能性能先增大后减小;建议以钢筋疲劳寿命需求为下限,塑性铰长度为上限选择小直径纵筋长度;选择满足保证塑性铰以外的纵筋受力始终在弹性范围内的条件下的最大直径为小直径纵筋直径;增大修复区域的混凝土强度可弥补设置小直径纵筋造成的桥墩承载力降低。

关键词：桥梁工程抗震性能拟静力试验钢筋混凝土圆形桥墩小直径纵筋碳纤维布

Role of gadoxetic acid-enhanced liver magnetic resonance imaging in the evaluation of hepatocellular carcinoma after locoregional treatment

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World Journal of Gastroenterology 2022年第26期28卷 3116-3131页

作者： Marco Gatti Cesare Maino Fatemeh Darvizeh Alessandro Serafini Eleonora Tricarico Alessia Guarneri Riccardo Inchingolo davide Ippolito Umberto Ricardi Paolo Fonio Riccardo Faletti Department of Surgical Sciences University of TurinTurin 10126Italy Department of Diagnostic Radiology University of Milano-BicoccaMonza 20900Italy Department of Diagnostic Radiology Ospedale San GerardoMonza 20900Italy School of Medicine Vita-Salute San Raffaele UniversityMilan 20121Italy Department of Radiology "F.Perinei"HospitalAltamura(BA)70022Italy Department of Oncology University of TurinTurin 10126Italy Interventional Radiology Unit “F.Miulli”Regional General HospitalAcquaviva delle Fonti(BA)70021Italy

Locoregional treatments,as alternatives to surgery,play a key role in the management of hepatocellular carcinoma(HCC).Liver magnetic resonance imaging(MRI)enables a multiparametric assessment,going beyond the traditional dynamic computed tomography ***,the use of hepatobiliary agents can improve diagnostic accuracy and are becoming important in the diagnosis and follow-up of ***,the main challenge is to quickly identify classical responses to loco-regional treatments in order to determine the most suitable management strategy for each *** aim of this review is to provide a summary of the most common and uncommon liver MRI findings in patients who underwent loco-regional treatments for HCC,with a special focus on ablative therapies(radiofrequency,microwaves and cryoablation),transarterial chemoembolization,trans-arterial radio-embolization and stereotactic ablative radiotherapy techniques,considering the usefulness of gadoxetate disodium(Gd-EOB-DTPA)contrast agent.

关键词： Carcinoma Hepatocellular Magnetic resonance imaging Gd-EOB-DTPA Radiofrequency ablation Catheter ablation Ablation techniques

Assessment of SARS-CoV-2 RNA shedding in semen of 36 males with symptomatic,asymptomatic,and convalescent infection during the first and second wave of COVID-19 pandemic in Italy

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Asian Journal of Andrology 2022年第2期24卷 135-138页

作者： Carlo Pavone Giovanni M Giammanco Andrea Pio Cascino davide Baiamonte Mirko Pinelli Enrico Cangelosi Chiara Filizzolo Giuseppa Sciortino Simona De Grazia Floriana Bonura Section of Urology Department of SurgicalOncological and Oral SciencesUniversity of PalermoPalermo 90127Italy Section of Microbiology Department of Health PromotionMother and Child CareInternal Medicine and Medical SpecialtiesUniversity of PalermoPalermo 90127Italy Section of Internal Medicine Department of Health PromotionMother and Child CareInternal Medicine and Medical SpecialtiesUniversity of PalermoPalermo 90127Italy

The severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)receptor,angiotensin-converting enzyme 2(ACE2),has been identified in the human testis,but the risk of transmission of SARS-CoV-2 through sexual intercourse still needs to be *** goal of our study was to determine if SARS-CoV-2 is detectable in the semen of patients suffering or recovering from coronavirus disease-19(COVID-19),still testing positive at nasopharyngeal swabs but showing mild or no symptoms at the time of *** of SARS-CoV-2 RNA in semen was performed by real-time reverse transcriptase-polymerase chain reaction(RT-PCR)and nested PCR targeting open reading frame(ORF)*** history of the enrolled patients was taken,including COVID-19-correlated symptoms,both at the time of diagnosis and at the time of *** of real-time RT-PCR and nested PCR in semen showed no evidence of SARS-CoV-2 RNA in the 36 patients suffering or recovering from COVID-19 but still positive in a nasopharyngeal swab,from over 116 patients enrolled in the ***-CoV-2 detection and persistence in semen would have an impact on both clinical practice and public health strategies,but our results would suggest that SARS-CoV-2 is not present in the semen of men recovering from COVID-19.

关键词： coronavirus COVID-19 Italy SARS-CoV-2 semen sexual transmission

Integration of multi-stage membrane carbon capture processes to coal-fired power plants using highly permeable polymers

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Green Energy & Environment 2016年第3期1卷 211-221页

作者： Maria-Chiara Ferrari davide Bocciardo Stefano Brandani School of Engineering University of Edinburgh

Membrane separation systems could be a feasible option as post combustion carbon capture technologies in coal-fired power *** advancement on membrane materials based on microporous super glassy polymers could improve significantly the capture process but the properties of the materials have to guide the design of the separation stage. In this study an advanced hybrid two-stage membrane process employing one of the most permeable polymer known(PIM-1) is retrofitted to a coal fired power plant and the process is analysed in terms of energy requirement and cost performance. The results are based on the use of an in-house detailed membrane module model implemented in UniSim Design~?, the Honeywell process flowsheet simulator. The study indicates the need for advanced configuration in order for highly permeable membranes to be competitive with more mature technologies in terms of capture cost. The effect of ageing and impurities on the material is also investigated in order to predict the decline in process performance over time and suggest a timeproof design.

关键词： Membranes PIMs Post-combustion LCOE

On the Properties of the Forced Unsteady-state Ring Reactor Network

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Chinese Journal of Chemical Engineering 2004年第3期12卷 408-414页

作者： davide FISSORE Antonello A.BARRESI Salvatore VELARDI Marco VANNI Dipartimento di Scienza dei Materiali e Ingegneria Chimica Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino ItalyDipartimento di Scienza dei Materiali e Ingegneria Chimica Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino ItalyDipartimento di Scienza dei Materiali e Ingegneria Chimica Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino ItalyDipartimento di Scienza dei Materiali e Ingegneria Chimica Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy

The multi-reactors network, a closed sequence of two or more catalytic fixed bed reactors with periodical change of the feed position, was studied by means of numerical simulations. Two advantages of such a reactor configuration, the possibility of exploiting the thermal storage capacity of the catalyst and the optimal temperature profile for exothermic equilibrium-limited reactions, were analyzed. The former feature acting as a regenerative heat exchanger was simulated in the case of the combustion of lean volatile organic compound (VOC) mixtures, with the possibility of multiple stability windows found when rich mixtures are fed. The latter was demonstrated using the methanol synthesis, with the enhancement of the conversion and product selectivity predicted. The influence of the number of the reactors in the network was pointed out. Some results obtained in the reverse-flow reactors were also presented for comparison.

关键词：化学反应器甲醇反应工程学移动床有机化合物

Improving wellbeing of community-dwelling people with mild cognitive impairment: the SENIOR (SystEm of Nudge theory based ICT applications for OldeR citizens) project

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Neural Regeneration Research 2021年第5期16卷 963-966页

作者： davide Maria Cammisuli Giada Pietrabissa Gianluca Castelnuovo Department of Clinical and Biomedical Sciences The University of Milan(La Statale)MilanItaly Psychology Research Laboratory Istituto di ricovero e cura a carattere scientifico Auxologico InstituteMilanItaly Department of Psychology Catholic University of the Sacred HeartMilanItaly

Population aging with longer life expectancy represents one of the most relevant challenges of the next future,also because of a significant proportion of older adult people may present with *** senior citizens with mild cognitive impairment to maintain their independence and functional abilities,improve health status and quality of life as well as social interactions,constitutes the main target of preventive *** to a nudge theoretical approach,the SENIOR(SystEm of Nudge theory based ICT applications for OldeR citizens)project–developed thanks to the collaboration among Catholic University of the Sacred Heart,Bicocca University and IRCCS Auxiologico Institute in Milan(Italy)–has been designed to adopt an advanced information and communication technology coaching system able to collect and integrate physiological,psychological and behavioral data,with the final aim of interacting with community-dwelling elderly people suffering from mild cognitive impairment and of providing them personalized feedback on lifestyle *** SENIOR project proposes to use a smart-watch app for alerting family doctors,sharing information with family members in specific cases and monitoring patients at higher risk in hospital Units,in order to ameliorate health of senior citizens with mild cognitive impairment.

关键词： community older adult people information and communication technology mild cognitive impairment nudge theory smart watches

Numerical Solution of Partial Differential Equations in Random Domains:An Application to Wind Engineering

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Communications in Computational Physics 2009年第2期5卷 515-531页

作者： Claudio Canuto davide Fransos Dipartimento di Matematica Politecnico di TorinoC.so Duca degli Abruzzi 2410129 TorinoItaly

An application of recent uncertainty quantification techniques to Wind Engineering is *** particular,the study of the effects of small geometric changes in the Sunshine Skyway Bridge deck on its aerodynamic behavior is *** results in the numerical solution of a proper PDE posed in a domain affected by randomness,which is handled through a mapping approach.A non-intrusive Polynomial Chaos expansion allows to transform the stochastic problem into a deterministic one,in which a commercial code is used as a black-box for the solution of a number of Reynolds-Averaged Navier-Stokes *** use of proper Gauss-Patterson nested quadrature formulas with respect to a Truncated Weibull probability density function permits to limit the number of these computationally expensive simulations,though maintaining a sufficient *** Chaos approximations,statistical moments and probability density functions of time-independent quantities of interest for the engineering applications are obtained.

关键词： Uncertainty quantification stochastic partial differential equations random domains mapping approach polynomial chaos wind engineering