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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 417-420页

作者： Daniele Del Fabbro Fabio Procopio Jacopo Galvanin Guido Costa Simone Famularo Angela Palmisano Matteo Donadon Guido Torzilli Division of Hepatobiliary Surgery Department of SurgeryIRCCS Humanitas Research HospitalVia A.Manzoni 56Rozzano 20089MilanItaly Department of Biomedical Sciences Humanitas UniversityVia Rita Levi Montalcini 4Pieve Emanuele 20072MilanItaly

Intraoperative ultrasonography(IOUS)in hepatobiliary surgery is well known as an essential tool for radical and safe hepatectomies,allowing to perform parenchymal sparing surgery and,as consequence,to expand the surgical indications for patients otherwise considered ***,since many years,despite its effectiveness in the study of vascular anatomy of the liver,the gold standard for the assessment of biliary anatomy during surgery is intraoperative cholangiography(IOC),which is used for the validation of preoperative imaging as well as for guiding reconstruction in case of bile duct injury or resection.

关键词： anatomy biliary ultrasonography

Climate change impacts on eutrophication in the Po River(Italy):Temperature-mediated reduction in nitrogen export but no effect on phosphorus

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Journal of Environmental Sciences 2024年第9期143卷 148-163页

作者： Elisa Soana Maria Pia Gervasio Tommaso Granata Daniela Colombo Giuseppe Castaldelli Department of Environmental and Prevention Sciences University of FerraraVia Luigi Borsari 4644121 FerraraItaly CESI-Italian Electrical and Technical Experimental Center via Rubattino 5420134MilanoItaly

Rivers worldwide are under stress from eutrophication and nitrate pollution,but the ecological consequences overlap with climate change,and the resulting interactions may be unexpected and still *** Po River basin(northern Italy)is one of the most agriculturally productive and densely populated areas in *** remains unclear whether the climate change impacts on the thermal and hydrological regimes are already affecting nutrient dynamics and transport to coastal *** present work addresses the long-term trends(1992-2020)of nitrogen and phosphorus export by investigating both the annual magnitude and the seasonal patterns and their relationship with water temperature and discharge *** the constant diffuse and point sources in the basin,a marked decrease(-20%)in nitrogen export,mostly as nitrate,was recorded in the last decade compared to the 1990 s,while no significant downward trend was observed for *** water temperature of the Po River has warmed,with the most pronounced signals in summer(+0.13℃/year)and autumn(+0.16℃/year),together with the strongest increase in the number of warm days(+70%-80%).An extended seasonal window of warm temperatures and the persistence of low flow periods are likely to create favorable conditions for permanent nitrate removal via denitrification,resulting in a lower delivery of reactive nitrogen to the *** present results show that climate change-driven warming may enhance nitrogen processing by increasing respiratory river metabolism,thereby reducing export from spring to early autumn,when the risk of eutrophication in coastal zones is higher.

关键词： Nutrient export Eutrophication Climate change Water temperature Denitrification Po River

A C-shaped hinge for displacement magnification in MEMS rotational structures

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Microsystems & Nanoengineering 2024年第1期10卷 55-66页

作者： Naga Manikanta Kommanaboina Teferi Sitotaw Yallew Alvise Bagolini Maria F.Pantano Department of Civil Environmental and Mechanical EngineeringUniversity of Trentovia Mesiano 7738123 TrentoItaly Fondazione Bruno Kessler(FBK) Microsystems Technology(MST)via S.Croce 7738122 TrentoItaly

The design,analysis,fabrication,and characterization of two distinct MEMS rotational structures are provided;these structures include a classical symmetrical lancet structure and a novel symmetrical C-shaped structure provided with a tilted arm,and both are actuated by thermal *** proposed C-shaped structure implemented a curved beam mechanism to enhance the movement delivered by the thermal *** geometrical parameters of our proposed device were optimized using the design of experiment(DOE)***,the analytical modeling based on Castigliano’s second theorem and the simulations based on the finite element method(FEM)were used to predict the behavior of the symmetrical C-shaped structure;the results were in good agreement with each *** MEMS-based rotational structures were fabricated on silicon-on-insulator(SOI)wafers using bulk micromachining technology and deep reactive ion etching(DRIE)*** fabricated devices underwent experimental characterization;our results showed that our proposed MEMS rotational structure exhibited a 28%improvement in the delivered displacement compared to the symmetrical lancet ***,the experimental results showed good agreement with those obtained from numerical *** proposed structures have potential applications in a variety of MEMS devices,including accelerometers,gyroscopes,and resonators,due to their ability to maximize displacement and thus enhance sensitivity.

关键词： shaped displacement structures

Breeding phase and outcome determine space use in European rollers Coracias garrulus prior to migration

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Current Zoology 2024年第2期70卷 137-149页

作者： Flavio Monti Sanja Barisic Sebastian Cannarella Davor Cikovic Vesna Tutis JelenaKralj Carlo Catoni aUniversity of Siena Department of Physical SciencesEarth and EnvironmentVia Mattioli 453100 SienaItaly Institute of Ornithology Croatian Academy of Sciences and ArtsGunduliceva 24HR-1000 ZagrebCroatia Ornis italica Piazza Crati 1500199 RomeItaly

The breeding period is a demanding and time-constrained phase for migratory bird *** outcome and duration can interact with the extent and duration of post-breeding movements,resulting in individual differences in space use ultimately influencing later stages of the annual *** present space-use and home range estimates during the breeding season for 21 European rollers Coracias garrulus tracked between 2018 and 2022,in Italy and *** high-resolution spatial GPS data coupled with regular nest-box monitoring,we analyzed dif-ferences in space use during the incubation/nestling period versus post-breeding period prior to migration,accounting for the breeding outcome(successful ***).We found that adult movements were strongly reduced during the first phase,whereas increased in the post-breeding phase,especially for failed *** breeders remained in the surroundings of the nest site,whereas unsuccessful ones tended to abandon the nest and visit distant areas(up to 500 km)for long periods(60.5±6.2 days).Breeding outcome did not influence the departure date of autumn migration,suggesting that failed breeders used this period for exploratory movements but not for advancing the onset of *** exploratory movements may be functional to prospect and inform settlement decisions in failed breeders in search of new breeding opportunities and may be particularly important in migratory species,which generally have a limited period to gather information prior to autumn *** study demonstrates the need to investigate seasonal movements in different populations and the potential importance of pros-pectingpost-breeding movements for long-distance migratory species.

关键词： animal movement biologging conservation Coracidae Mediterranean nest-box population monitoring prospecting movements reproduction.

Lithium-Metal Free Sulfur Battery Based on Waste Biomass Anode and Nano-Sized Li_(2)S Cathode

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Energy & Environmental Materials 2024年第2期7卷 39-47页

作者： Pejman Salimi Eleonora Venezia Somayeh Taghavi Sebastiano Tieuli Lorenzo Carbone Mirko Prato Michela Signoretto Jianfeng Qiu Remo Proietti Zaccaria Istituto Italiano di Tecnologia via Morego 30Genoa 16163Italy Department of Chemistry and Industrial Chemistry University of Genovavia Dodecaneso 311-16146Genoa Italy CATMAT Lab Department of Molecular Sciences and NanosystemsCa'Foscari University Venice and INSTM ConsortiumRU of VeniceVia Torino 15530172Venezia Mestre Italy Department of Physics Shaoxing UniversityShaoxing 312000China

The realization of a stable lithium-metal free(LiMF)sulfur battery based on amorphous carbon anode and lithium sulfide(Li_(2)S)cathode is here *** particular,a biomass waste originating full-cell combining a carbonized brewer's spent grain(CBSG)biochar anode with a Li_(2)S-graphene composite cathode(Li_(2)S70Gr30)is *** design is particularly attractive for applying a cost-effective,high performance,environment friendly,and safe anode material,as an alternative to standard graphite and metallic lithium in emerging battery *** anodic and cathodic materials are characterized in terms of structure,morphology and composition through X-ray diffraction,scanning and transmission electron microscopy,X-ray photoelectron and Raman ***,an electrochemical characterization comprising galvanostatic cycling,rate capability and cyclic voltammetry tests were carried out both in half-cell and full-cell *** systematic investigation reveals that unlike graphite,the biochar electrode displays good compatibility with the electrolyte typically employed in sulfur *** CBSG/Li_(2)S70Gr30 full-cell demonstrates an initial charge and discharge capacities of 726 and 537 mAh g^(-1),respectively,at 0.05C with a coulombic efficiency of 74%.Moreover,it discloses a reversible capacity of 330 mAh g^(-1)(0.1 C)after over 300 *** on these achievements,the CBSG/Li_(2)S70Gr30 battery system can be considered as a promising energy storage solution for electric vehicles(EVs),especially when taking into account its easy scalability to an industrial level.

关键词： biochars ether-based electrolytes lithium sulfide lithium-metal free batteries superior cycling stability

Targeted NGS analysis reveals a complex genetic background of idiopathic erythrocytosis in a large Venetian family

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Genes & Diseases 2024年第2期11卷 561-563页

作者： Bertozzi Irene Benetti Andrea Regazzo Daniela Polese Francesca Biagetti Giacomo Ceolotto Giulio Randi Maria Luigia First Medical Clinic University of Padua Department of Medicine – DIMEDVia Giustiniani 2Padova 35123Italy Transfusion Medicine Department Ospedale dell'Angelo - Venezia MestreVia Paccagnella 1Venice 30174Italy Emergency Medicine University of Padua Department of Medicine – DIMEDVia Giustiniani 2Padova 35123Italy

Absolute erythrocytosis,due to an increased production of red blood cells,becomes manifest with hemoglobin(Hb)levels above 165 or 160 g/L or with a hematocrit(HCT)above 51%and 48%in males and females,respectively.1 A minority of patients have polycythemia vera(PV);acquired secondary erythrocytosis frequently occurs due to appropriate or inappropriate erythropoietin(EPO)excess,while congenital secondary erythrocytosis may derive from genetic defects causing tissue *** erythrocytosis occurs in patients with genetic mutations of the oxygen-sensing pathway(VHL,PHD2,_HIF-1-alpha)or the erythropoietin receptor(EPOR)genes.2 Recently,HFE gene variants have been described in sporadic erythrocytoses.3 In a high proportion(about 70%)of patients with erythrocytosis,a specific etiology remains elusive despite extensive testing,and the diagnosis of idiopathic erythrocytosis(IE)is ruled out.

关键词： diagnosis patients congenital

Chestnut tannin:New use,research and bioeconomy

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Journal of Bioresources and Bioproducts 2024年第3期9卷 246-252页

作者： Rosaria Ciriminna Francesco Meneguzzo Giovanna Li Petri Cosimo Meneguzzo Giuseppe Angellotti Mario Pagliaro Istituto per lo Studio dei Materiali Nanostrutturati CNRvia U.La Malfa 15390146 PalermoItaly Istituto per la Bioeconomia CNRvia Madonna del Piano 1050019 Sesto Fiorentino(FI)Italy HyRes Srl via Salvator Rosa 1882100 BeneventoItaly

Chestnut tannin,extracted from the bark or wood of chestnut trees,possesses unique properties that make it valuable in various *** serves as a natural source of tannins,which are widely used in the production of leather,textiles,and wood *** research continues to explore its potential applications,chestnut tannin remains a promising resource with diverse industrial *** new use,research and bioeconomy aspects,this study provides a unified perspective on chestnut *** advanced applications will likely emerge shortly.

关键词： Tannin Chestnut Bioeconomy Tannin market Hydrolysable tannin

Heterogeneous patterning of blood-brain barrier and adaptive myelination as renewing key in gray and white matter

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Neural Regeneration Research 2024年第3期19卷 481-482页

作者： Barbara Pavan Department of Neuroscience and Rehabilitation University of Ferraravia L BorsariFerraraItalyCenter for Translational Neurophysiology of Speech and Communication(CTNSC)Italian Institute of Technology(IIT)via Fossato di MortaraFerraraItaly

Background:Development and homeostasis of the brain are enabled through the precise control of the cell microenvironment by the blood-brain barrier(BBB),which interfaces between the brain parenchyma and the lumen of blood microvessels,and by the blood-cerebrospinal fluid barrier,which separates the cerebrospinal fluid from the blood vessels of the choroid plexus(Villabona-Rueda et al.,2019).Here,the focus will be on the BBB,the impairment of which is considered the earliest common denominator in neurovascular diseases.

关键词： homeostasis blood

Sex-specifc seasonal variations of wild boar distance traveled and home range size

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Current Zoology 2024年第3期70卷 284-290页

作者： Silvia Cavazza Rudy Brogi Marco Apollonio Department of Veterinary Medicine University of Sassarivia Vienna 2I-07100 SassariItaly

Distance traveled and home range size describe how animals move in *** seasonal variations of these parameters are important to comprehensively understand animal ecology and its connection with reproductive behavior and energy *** usually estimate the distance traveled as the sum of the straight-line displacements between sampled positions,but this approach is sensitive to the sampling frequency and does not account for the tortuosity of the animal’s *** means of the continuous-time movement modeling which takes into account autocorrelation and tortuosity of movement data,we estimated the distance traveled and monthly home range size of 28 wild boar Sus scrofa and modeled their inter-sexual seasonal *** traveled longer distances and used larger home ranges than females,particularly during the rut in autumn-winter,consistently with the different biological cycles of males and *** enlarged their home ranges during the rut but traveled constant average distances along the year,whereas females traveled shorter distances in correspondence with the peak of food resources and birth periods but exhibited constant home range size across *** differences between the seasonal variation patterns of distance traveled and home range size,observed in both sexes,revealed the complex relationship between these two aspects of spatial behavior and the great opportunity of including both distance traveled and home range size in behavioral ecology *** provided a detailed analysis of wild boar spatial behavior and its relationships with the reproductive cycles of males and females,promoting a deeper comprehension of their behavioral ecology.

关键词： continuous-time ctmm daily range movements spatial behavior Sus scrofa

Polymerization of 1,3-Butadiene with Catalysts Based on Cobalt Dichloride Complexes with Aminophosphines: Switching the Regioselectivity by Varying the MAO/Co Molar Ratio

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Chinese Journal of Polymer Science 2024年第4期42卷 501-510页

作者： Giovanni Ricci Anna Sommazzi Francesco Masi Alessandra Forni CNR-Istituto di Scienze e Tecnologie Molecolari“Giulio Natta”(SCITEC) via A.Corti 1220133MilanoItaly viale Giovanni XXIII 34 I-28100NovaraNOItaly via Galvani 7 I-26866Sant’Angelo LodigianoLOItaly CNR-Istituto di Scienze e Tecnologie Molecolari“Giulio Natta”(SCITEC) via C.Golgi 1920133MilanoItaly

Several novel cobalt dichloride complexes with amino-phosphine bidentate ligands were synthesized and *** some of them single crystals were obtained and their molecular structure was determined by X-ray diffraction *** the complexes were then used in combination with MAO for the polymerization of 1,3-butadiene,obtaining polymers with different structures(i.e.,predominantly 1,2 or cis-1,4)mainly depending on the type of ligand and on the MAO/Co molar *** behavior of these novel catalysts was compared with that exhibited,in the polymerization of the same monomer,by the systems CoCl_(2)(PR3)2-MAO and CoCl_(2)(PRPh2)2-MAO(R=alkyl or cycloalkyl group),and by the systems based on cobalt dichloride complexes with various bi-and tridentate ligands(e.g.,diphosphines,bis-imines,pyridyl-imines,bis-iminopyridines).The comparison between the different systems allowed us to make some clarity about the actual and effective role played by the various types of ligands in the polymerization of conjugated dienes with catalytic systems CoCl_(2)(L)-MAO,in which L=mono-,bi-,or tri-dentate ligand.

关键词： 1,3-Butadiene Stereospecific polymerization Cobalt catalysts Regioselectivity Aminophosphine ligands Crystal structures Chelate rings