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The use of computational thermodynamic for yttrium recovery from rare earth elements-bearing residue

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Journal of Rare Earths 2021年第2期39卷 201-207页

作者： Amilton Barbosa Botelho Junior Denise Crocce romano Espinosa Jorge Alberto Soares Tenorio Department of Chem ical Engineering Polytechnic SchoolUniversity of Sao PauloSao PauloBrazil

The rare earth elements are considered critical metals,due to the risk of supply *** recycling of waste electrical and electronic equipment can be an alternative to supply the rare earth *** processes have been developed,and by aqueous media is the most prominent,which makes possible the extraction and separation of elements even in low concentration(traces).As an example of thermal processing,the use of thermodynamic simulations might benefit the metal extraction in hydrometallurgical *** this reason,the goal of this work is to evaluate the use of FactSage 7.2 software for the leaching of fluorescent lamp powders by sulfuric *** effect of concentration and temperature was *** comprise that the thermodynamic software wellpredicted the solid phase formed in all residues of leaching experiments-gypsum was predicted by the software and identified in XRD *** demonstrates that FactSage software can be explored for metals extraction in aqueous media,being important for trace-elements *** extraction reaches up to 95%at 45℃using H_(2)SO_(4)2 mol/L.

关键词： Yttrium Lanthanum Cerium WEEE FactSage Rare earths

Direct Simulation of Charge Transport in Graphene Nanoribbons

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Communications in Computational Physics 2022年第2期31卷 449-494页

作者： Giovanni Nastasi V.Dario Camiola Vittorio romano Universita degli Studi di Catania Dipartimento di Matematica e InformaticaViale Andrea Doria 695125 CataniaItaly

Graphene nanoribbons are considered as one of the most promising ways to design electron devices where the active area is made of *** fact,graphene nanoribbons present a gap between the valence and the conduction bands as in standard semiconductors such as Si or GaAs,at variancewith large area graphenewhich is gapless,a feature that hampers a good performance of graphene field effect *** use graphene nanoribbons as a semiconductor,an accurate analysis of their electron properties is ***,electron transport in graphene nanoribbons is investigated by solving the semiclassical Boltzmann equation with a discontinuous Galerkin *** the electron-phonon scattering mechanisms are *** adopted energy band structure is that devised in[1]while according to[2]the edge effects are described as an additional scattering stemming from the Berry-Mondragon model which is valid in presence of edge *** this approach a spacial 1D transport problem has been solved,even if it remains two dimensional in the wavevector space.A degradation of charge velocities,and consequently of the mobilities,is found by reducing the nanoribbon width due mainly to the edge scattering.

关键词： Graphene nanoribbons bipolar charge transport discontinuous Galerkin method

Electrospun bundled carbon nanofibers for skin-inspired tactile sensing,proprioception and gesture tracking applications

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npj Flexible Electronics 2021年第1期5卷 242-255页

作者： Debarun Sengupta Joshua romano Ajay Giri Prakash Kottapalli Department of Advanced Production Engineering(APE) Engineering and Technology Institute Groningen(ENTEG)University of GroningenGroningen 9747 AGThe Netherlands MIT Sea Grant College Program Massachusetts Institute of Technology(MIT)77 Massachusetts AvenueNW98-151CambridgeMA 02139USA

In this work,we report a class of wearable,stitchable,and sensitive carbon nanofiber(CNF)-polydimethylsiloxane(PDMS)composite-based piezoresistive sensors realized by carbonizing electrospun polyacrylonitrile(PAN)nanofibers and subsequently embedding in PDMS elastomeric thin ***-mechanical tactile sensing characterization of the resulting piezoresistive strain sensors revealed a linear response with an average force sensitivity of~1.82 kN−1 for normal forces up to 20 *** real-time functionality of the CNF-PDMS composite sensors in wearable body sensor networks and advanced bionic skin applications was demonstrated through human motion and gesture monitoring experiments.A skin-inspired artificial soft sensor capable of demonstrating proprioceptive and tactile sensory perception utilizing CNF bundles has been ***,a 16-point pressure-sensitive flexible sensor array mimicking slow adapting low threshold mechanoreceptors of glabrous skin was *** devices in tandem with neuromorphic circuits can potentially recreate the sense of touch in robotic arms and restore somatosensory perception in amputees.

关键词： prop gesture artificial

Significance of ipsilateral breast tumor recurrence after breast conserving treatment: role of surgical removal

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Chinese Journal of Cancer Research 2013年第1期25卷 22-31页

作者： romano Demicheli Ilaria Ardoino Federico Ambrogi Roberto Agresti Elia Biganzoli Scientific Directorate IRCCS National Cancer Institute Medical Statistics and Biometry University of Milan Breast Surgery IRCCS National Cancer Institute Medical Statistics and Biometry IRCCS National Cancer Institute

Objective： To analyze the pattern over time （dynamics） of further recurrence and death after ipsilateral breast tumor recurrence （IBTR） in breast cancer patients undergoing breast conserving treatment （BCT）. Methods： A total of 338 evaluable patients experiencing IBTR were extracted from a database of 3,293 patients undergoing BCT. The hazard rates for recurrence and mortality throughout 10 years of follow-up after IBTR were assessed and were compared to the analogous estimates associated to the primary treatment. Results： In a time frame with the time origin at the surgical treatment for IBTR, the hazard rate for further recurrence displays a bimodal pattern （peaks at the second and at the sixth year）. Patients receiving mastectomy for IBTR reveal recurrence and mortality dynamics similar to that of node positive （N＋） patients receiving mastectomy as primary surgery, apart from the first two-three years, when IBTR patients do worse. If the patients with time to IBTR longer than 2.5 years are considered, differences disappear. Conclusions： The recurrence and mortality dynamics following IBTR surgical removal is similar to the corresponding dynamics following primary tumor removal. In particular, patients with time to IBTR in excess of 2.5 years behave like N＋ patients following primary tumor removal. Findings may be suitably explained by assuming that the surgical manoeuvre required by IBTR treatment is able to activate a sudden growing phase for tumor foci most of which, as suggested by the systemic model of breast cancer, would have reached the clinical level according to their own dynamics.

关键词： Breast cancer IBTR recurrence dynamics effects of surgery conservative surgery tumor homeostasis

Helicobacter pylori gamma-glutamyl transpeptidase and its pathogenic role

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World Journal of Gastroenterology 2014年第3期20卷 630-638页

作者： Vittorio Ricci Maria Giannouli Marco romano Raffaele Zarrilli Department of Molecular Medicine Human Physiology SectionUniversity of Pavia Medical School Department of Public Health Hygiene SectionUniversity of Naples "Federico Ⅱ" Department of Clinical and Experimental Medicine Chair of GastroenterologySecond University of Naples CEINGE Biotecnologie Avanzate

Helicobacter pylori(***)gamma-glutamyl transpeptidase(GGT)is a bacterial virulence factor that converts glutamine into glutamate and ammonia,and converts glutathione into glutamate and *** GGT causes glutamine and glutathione consumption in the host cells,ammonia production and reactive oxygen species *** products induce cell-cycle arrest,apoptosis,and necrosis in gastric epithelial *** GGT may also inhibit apoptosis and induce gastric epithelial cell proliferation through the induction of cyclooxygenase-2,epidermal growth factor-related peptides,inducible nitric oxide synthase and *** GGT induces immune tolerance through the inhibition of T cell-mediated immunity and dendritic cell *** effect of GGT on *** colonization and gastric persistence are also discussed.

关键词： Helicobacter pylori Gamma-glutamyl transpeptidase Bacterial virulence factor Gastric epithelial cell damage T cell-mediated immunity

Pancreatic involvement in pediatric inflammatory bowel diseases

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World Journal of Pediatrics 2015年第3期11卷 207-211页

作者： Sabrina Cardile Antonino Randazzo Simona Valenti Claudio romano Department of Pediatrics IBD UnitUniversity of Messina Via Consolare ValeriaMessina 98125Italy

Background:Inflammatory bowel diseases(IBDs)are a group of chronic diseases affecting the gastrointestinal tract,with a disabling *** incidence of IBDs is increasing in different geographical areas,indicating its emergence as a global disease,especially in *** patients with IBDs develop extraintestinal manifestations(EIMs)during follow-up,as IBDs have a potential risk of systemic involvement..Data sources:A systematic review of the literature was made to analyze latest studies on pancreatic involvement in children with IBD including our experience in assessing possible implications and its future ***:The involvement of the hepatobiliary system is considered a rare EIM of children with IBD,with an incidence much higher than that in the general *** pancreatic hyperenzymemia,which occurs in the absence of typical symptoms and/or characteristic imaging findings,may be found in many patients with *** frequent causes of pancreatitis are drugs,bilio-pancreatic disorders,immunologic disturbances and pancreatic auto-antibodies,although in some cases idiopathic forms have been ***:It is important to establish a correct diagnostic approach based on etiology and to assess the most appropriate therapeutic strategy,thus avoiding complications and improving the quality of life of children with IBD.

关键词： Crohn's disease extraintestinal manifestations inflammatory bowel diseases pancreatitis ulcerative colitis

Some aspects on the sampling efficiency of microbial impaction air samplers

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Particuology 2015年第3期13卷 110-113页

作者： Francesco romano Jan Gusten Cesare M.Joppolo Bengt Ljungqvist Berit Reinmuller Dipartimento di Energia Politecnico di Milanovia Lambruschini 420156 MilanItaly Building Services Engineering Chalmers University of TechnologyMaskingrand 2.SE-41296 GothenburgSweden

Indoor microbial monitoring is an important health issue in many sectors of society. In particular, it is important to monitor microbial concentrations in environments dealing with bio-susceptible products. Many human diseases are related to high, undesired microbial airborne concentrations. However, the lack of a standardized and well-accepted methodology for testing and ranking the performance of microbial air samplers is a source of uncertainty in such measurements. Several works clearly show that results obtained from microbial air sampling depend largely on measuring techniques, especially the air sampiers＇ physical parameters, such as d50, as well as environmental conditions, sources, and concentrations of microbial organisms in the environment. Furthermore, personnel using cleanroom clothing can reduce the microbial burden within a clean environment. To evaluate this effect, we carried out experimental comparison tests in a cleanroom of class ISO 5 with different air samplers under various microbial concentration levels, generated by a human source dressed in different quality cleanroom clothing. Our results confirm that in addition to the measuring technique, cleanroorn clothing does influence microbial contamination, affecting air samoler measurements.

关键词： Indoor microbial monitoringSampling efficiencylmpaction air samplerAirborne contaminationCleanroom clothing systemd5o

Wing-fanning frequency as a releaser boosting male mating success— High-speed video analysis of courtship behavior in Campoplex capitator, a parasitoid of Lobesia botrana

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Insect Science 2020年第6期27卷 1298-1310页

作者： Giovanni Benelli Renato Ricciardi Donato romano Francesca Cosci Cesare Stefanini Andrea Lucchi Department of Agriculture.Food and Environment University of PisaPisaItaly The BioRobotics Institute.Sant'Anna School of Advanced Studies PontederaPisaItaly Department of Excellence in Robotics&A.I. Sant'Anna School of Advanced StudiesPisaItaly HEIC Center BME DepartmentKhalifa UniversityAbu DhabiUAE

Campoplex capitator is an ichneumonid parasitoid with a narrow host range,comprising grapevine moth *** being considered one of the possible candidates for biocontrol of Lobesia botrana,knowledge about its biology is limited and massrearing for commercial purposes is still *** research provides a quantitative analysis of the *** courtship and mating *** mating sequence was analyzed by high-speed video *** behavioral parameters,with special reference to male wing fanning and antennal tapping,were quantified and linked with mating ***,we analyzed the occurrence of population-level behavioral asymmetries during C capitator sexual interactions and their impact on male *** showed that male wing fanning was crucial to successfully approach the *** achieving higher mating success performed wing-fanning at higher frequencies over unsuccessful *** wing fanning,most of males palpated the females body with their antennae,before attempting *** overall mating success was>70%,with a rather long copula duration(254.76±14.21 s).Male wing-fanning was lateralized on the left at population level,while antennal tapping displays were *** male displays do not differ in terms of frequency and duration of their main *** research adds basic knowledge to the *** behavioral *** rearing protocols for *** are being developed male wing fanning frequency may represent a useful benchmark for monitoring mate quality over time,tackling mating success reductions due to prolonged mass-rearing.

关键词： biological control European grapevine moth Ichneumonidae koinobiont parasitoid mass-rearing mating behavior

Gastrointestinal and nutritional care in pediatric neuromuscular disorders

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世界临床儿科杂志 2023年第4期12卷 197-204页

作者： Valeria Dipasquale Rossella Morello Claudio romano Department of Human Pathology in Adulthood and Childhood“G.Barresi” University Hospital“G.Martino”Messina 98124Italy

Neuromuscular diseases(NMDs)affect the development and growth of the neuromuscular system in *** pathology can occur anywhere along the neuromuscular pathway,from the brain to the nerves to the muscle *** diseases have a profound impact on the quality of life not only of children but also of their *** predominant manifestation in NMDs is hypotonia,which leads to muscle weakness and fatigue,reduced mobility,and decreased physical ***,multiple organ systems can be affected,with resulting orthopedic,cardiac,infectious,respiratory,and nutritional *** with NMD present an increased risk for several dietary and feeding difficulties because of their neuromuscular diagnosis,presentation,and *** problems include chronic gastrointestinal issues(constipation,dysphagia,gastroesophageal reflux,and diarrhea),dysphagia,malnutrition,and body composition *** a result,compared to the overall pediatric population,infants and children with NMD are more likely to be malnourished,ranging from failure to thrive to overweight or ***-specific guidelines vary in level of detail and recommendations for dietary ***,nutritional data available are sparse,with the exception of Duchenne muscular dystrophy,spinal muscular atrophy,and congenital muscular *** purpose of this review is to describe the spectrum of nutritional challenges in children with NMD and to summarize the main dietary and gastrointestinal recommendations for each neuromuscular disorder to provide guidance for daily clinical practice.

关键词： Neuromuscular disorders Diet Malnutrition Overweight Dysphagia Gastrointestinal dysmotility Gastrointestinal symptoms Tube feeding