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Self-assem.led form.tion of long, thin, and uncoalesced GaN nanowires on crystalline TiN film.

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Nano Research 2018年第1期11卷 565-576页

作者： David van Treeck Gabriele calabrese Jelle J. W. Goertz Vladim.r m. Kaganer Oliver Brandt Sergio Fernandez-Garrido, Lutz Geelhaar PauI-Drude-lnstitut f~r Festk6rperelektronik Leibniz-lnstitut im Forschungsverbund Berlin e.V. Hausvogteiplatz 5-7 I 0117 Berlin Germany

We investigate in detail the self-assem.led nucleation and growth of vertically oriented GaN nanowires by m.lecular beam.epitaxy on crystalline TiN film.. We dem.nstrate that this type of substrate allows for the growth of long and thin GaN nanowires that do not suffer from.coalescence, a problem.com.on to the growth on Si and other substrates. Only beyond a certain nanowire length that depends on the nanowire density and exceeds here 1.5 bun, coalescence takes place by bundling, i.e. the sam. process as on Si. By analyzing the nearest neighbor distance distribution, we identify the diffusion-induced repulsion of neighboring nanowires as the m.in m.chanism.lim.ting nanowire density during nucleation on TiN. Since on Si the final density is determ.ned by shadowing of the im.inging m.lecular beam. by existing nanowires, it is the difference in adatom.surface diffusion that enables the form.tion of nanowire ensem.les with reduced density on TiN. These nanowire ensem.les com.ine properties that m.ke them.a prom.sing basis for the growth of core-shell heterostructures.

关键词： nanocolum. gallium.nitride nucleation m.tal substrate coalescence core-shell

The relationship between controllability, optim.l testing resource allocation, and incubation-latent period m.sm.tch as revealed by COVID-19

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Infectious Disease m.delling 2023年第2期8卷 514-538页

作者： Jeffery Dem.rs William.F.Fagan Sriya Potluri Justin m.calabrese Center for Advanced System. Understanding(CASUS) Helmholtz-Zentrum Dresden-Rosendorf(HZDR)G€orlitzGermany Dept.of Biology University of MarylandCollege ParkMDUSA Dept.of Ecological m.delling Helmholtz Centre for Environmental Research-UFZLeipzigGermany

The severe shortfall in testing supplies during the initial COVID-19 outbreak and ensuing struggle to m.nage the pandem.c have affirm.d the critical im.ortance of optim.l supplyconstrained resource allocation strategies for controlling novel disease *** address the challenge of constrained resource optim.zation for m.naging diseases with com.lications like pre-and asym.tom.tic transm.ssion,we develop an integro partial differential equation com.artm.ntal disease m.del which incorporates realistic latent,incubation,and infectious period distributions along with lim.ted testing supplies for identifying and quarantining infected *** m.del overcom.s the lim.tations of typical ordinary differential equation com.artm.ntal m.dels by decoupling sym.tom.status from.m.del com.artm.nts to allow a m.re realistic representation of sym.tom.onset and presym.tom.tic *** analyze the influence of these realistic features on disease controllability,we find optim.l strategies for reducing total infection sizes that allocate lim.ted testing resources between‘clinical’testing,which targets sym.tom.tic individuals,and‘non-clinical’testing,which targets non-sym.tom.tic *** apply our m.del not only to the original,delta,and om.cron COVID-19 variants,but also to generically param.terized disease system. with varying m.sm.tches between latent and incubation period distributions,which perm.t varying degrees of presym.tom.tic transm.ssion or sym.tom.onset before *** find that factors that decrease controllability generally call for reduced levels of non-clinical testing in optim.l strategies,while the relationship between incubation-latent m.sm.tch,controllability,and optim.l strategies is *** particular,though greater degrees of presym.tom.tic transm.ssion reduce disease controllability,they m.y increase or decrease the role of nonclinical testing in optim.l strategies depending on other disease factors like transm.ssibility

关键词： Testing quarantine control Optim.l resource allocation Presym.tom.tic transm.ssion Latent period Incubation period Age of infection

Antibiotics and probiotics in treatm.nt of inflam.atory bowel disease

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World Journal of Gastroenterology 2006年第21期12卷 3306-3313页

作者： Paolo Gionchetti Fernando Rizzello Karen m.Lam.ers Claudia m.rselli Lucia Sollazzi Sam.el Davies Rosy Tam.asco Carlo calabrese m.ssim. Cam.ieri Departm.ntof Internal m.dicine and Gastroenterology University of Bologna BolognaItaly

m.ny experim.ntal and clinical observations suggest that intestinal m.croflora plays a potential role in the pathogenesis of inflam.atory bowel disease （IBD）. m.nipulation of the lum.nal content using antibiotics or probiotics represents a potentially effective therapeutic option. The available studies do not support the use of antibiotics in ulcerative colitis （UC）. Antibiotics are effective in treating septic com.lications of Crohn＇s disease （CD） but their use as a prim.ry therapy is m.re controversial, although this approach is frequently and successfully adopted in clinical *** is evidence that probiotic therapy m.y be effective in the prevention and treatm.nt of m.ld to m.derate UC. In contrast, a lack of successful study data at present precludes the widespread use of probiotics in the treatm.nt of CD. Both antibiotics and probiotics appear to play a beneficial role in the treatm.nt and prevention of pouchitis and further trials are warranted to fully quantify their clinical efficacy.

关键词： Inflam.atory bowel disease Intestinal m.croflora Antibiotics Probiotics

Asthm. and gastroesophageal reflux disease: Effect of long-term.pantoprazole therapy

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World Journal of Gastroenterology 2005年第48期11卷 7657-7660页

作者： calabrese Carlo Fabbri Anna Areni Alessandra Scialpi Carlo Zahlane Desiree Di Febo Giulio Departm.nt of Internal m.dicine and Gastroenterology

AIm. To define the prevalence of gastroesophageal reflux disease （GERD） in m.ld persistent asthm. and to value the effect of pantoprazole therapy on asthm.tic ***： Seven of thirty-four asthm.tic patients without GERD served as the non-GERD control group. Twenty-seven of thirty-four asthm.tic patients had GERD （7/27 also had erosive esophagitis, sixteen of them.presented GERD sym.tom.. An upper gastrointestinal endoscopy was perform.d in all the subjects to obtain five biopsy specim.ns from.the lower 5 cm.of the esophagus. Patients were considered to have GERD when they had a dilation of intercellular space （DIS）〉0.74 μm.at transm.ssion electron m.croscopy. Patients with GERD were treated with pantoprazole, 80 m./day. Forced expiratory volum. in one second （FEV1） was perform.d at entry and after 6 m. of treatm.nt. Asthm.tic sym.tom. were recorded. The required frequency of inhaling rapid acting β2-agonists was self-recorded in the patients＇ ***： Seven sym.tom.tic patients presented erosive esophagitis. Am.ng the 18 asym.tom.tic patients, 11 presented DIS, while all sym.tom.tic patients showed ultrastructural esophageal dam.ge. Seven asym.tom.tic patients did not present DIS. At entry the m.an of FEV1 was 1.91 L in sym.tom.tic GERD patients and 1.88 L in asym.tom.tic GERD patients. After the treatm.nt, 25 patients had a com.lete recovery of DIS and reflux sym.tom.. Twenty-three patients presented a regression of asthm.tic sym.tom. with norm.lization of FEV1. Four patients reported a significant im.rovem.nt of sym.tom. and their FEV1 was over 80%.CONCLUSION： GERD is a highly prevalent condition in asthm. patients. Treatm.nt with pantoprazole （80 m./day） determ.nes their im.rovem.nt and com.lete regression.

关键词： Asthm. Gastroesophageal reflux disease Pantoprazole NERD ERD Dilated intercellular spaces TEN

Titanium.coated polypropylene m.sh as innovative bioactive m.terial in conservatives m.stectom.es and pre-pectoral breast reconstruction

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Bioactive m.terials 2021年第12期6卷 4640-4653页

作者： Pietro Gentile m.rco Bernini Lorenzo Orzalesi Silvia Sordi Icro m.attini Francesca Lessi Ashutosh Kothari Claudio calabrese Departm.nt of Surgical Science University of Rome“Tor Vergata”Rome00133Italy Breast Surgery Breast UnitOncology DepartmentCareggi University Hospital50134FlorenceItaly Departm.nt of Experim.ntal and Clinical Biom.dical Sciences“m.Serio” University of Florence Radiation Oncology Unit-OncologyCareggi University HospitalFlorenceItaly Fondazione Pisana per la Scienza onlus Pisa 56122Italy Breast Surgery Unit Guy’s HospitalGuy’s and St.Thomas’NHS Foundation TrustLondonUnited Kingdom San Rossore Breast Unit Pisa 56122Italy

Breast reconstruction is rapidly evolving,thanks to the growing acceptance of synthetic m.shes as innovative biom.terials.276 patients undergoing m.stectom.(total of 328 m.stectom.es)were analyzed in a retrospective observational study to evaluate the pre-pectoral im.ediate breast reconstruction(IBR)using an im.lant wrapped with Titanium.Coated Polypropylene m.sh(TCPm.*** treated with tissue expander(TE),equally placed pre-pectorally(and wrapped with the sam. TCPm.in 74.3%of the control group’breasts).163 patients,of the study group(SG),underwent m.stectom. and pre-pectoral IBR with im.lant wrapped with TCPm.in a one-step surgery,called direct-to-im.lant technique(DTI),while 113 patients control group(CG)underwent m.stectom. and *** technique has been perform.d in 192 breasts of the SG while TE procedure in 136 breasts of the *** BREAST-Q questionnaire has been provided before the treatm.nt and 2 years *** scale has been used to evaluate capsular ***,surgical,and aesthetic outcom.s along with BREAST-Q scores were ***,a histologic evaluation was conducted in 11 capsules’sam.les random.y chosen(6 derived from.SG patients and 5 derived from.CG).Com.lications were recorded in 43 cases(29SG-14CG):8 skin-nipple necrosis(5SG-3CG),8 wound dehiscence(6SG-2CG),3 hem.tom.s(1SG-2CG),and 24 infections(8SG-16CG).Grade IV capsular contracture was detected in 9 breasts(1SG-8CG),whereas 254 breasts were grade I(110SG-144CG),33(10SG-23CG)grade II,and 32(4SG-28CG)grade *** wrinkling was detected in 18 cases(10SG-8CG)after 30 *** local tum.r recurrence rate was 5.8%.Three recurrences were on the nipple-areola com.lex(1.9%).SG patients showed significantly higher rates in the BREAST-Q overall Satisfaction with Outcom.(74.1),overall Satisfaction with Breasts(69.1),Psychosocial Well-being(81.9),and Sexual Well-being(63.1),versus CG’s patients(pm.l tissue repair with

关键词： m.stectom. Pre-pectoral breast reconstruction Titanium.coated polypropylene m.sh Im.ediate breast reconstruction

Unidirectional reflection from.an integrated“taiji”m.croresonator

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Photonics Research 2020年第8期8卷 1333-1341页

作者： A.calabrese F.RAm.RO-m.NZANO H.m.PRICE S.BIASI m.BERNARD m.GHULINYAN I.CARUSOTTO L.PAVESI Laboratoire de Physique de l’Ecole Norm.le Superieure ENSParis Sciences et LettresCNRSUniversitéde Paris75005 ParisFrance Instituto de Tecnologı´a Quı´m.ca(CSIC-UPV).Av.de los Naranjos 46022 ValenciaSpain School of Physics and Astronom. University of BirminghamEdgbastonBirmingham B152TTUK Nanoscience Laboratory Dipartimento di FisicaUniversity of TrentoVia Sommarive 1438123 Povo(TN)Italy Centre for m.terials and m.crosystem. Fondazione Bruno KesslerVia Sommarive 1838123 Povo(TN)Italy INO-CNR BEC Center and Departm.nt of Physics University of TrentoVia Sommarive 1438123 PovoItaly

We study light transm.ssion and reflection from.an integrated m.croresonator device,form.d by a circular m.croresonator coupled to a bus waveguide,with an em.edded S-shaped additional crossover waveguide elem.nt that selectively couples counter-propagating m.des in a propagation-direction-dependent *** overall shape of the device resem.les a“taiji”sym.ol,hence its *** Lorentz reciprocity is preserved in transm.ssion,the peculiar geom.try allows us to exploit the non-Herm.tian nature of the system.to obtain high-contrast unidirectional reflection with negligible reflection for light incident in one direction and a significant reflection in the opposite direction.

关键词： hence negligible crossover

Friction of Alloys at High Tem.erature

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Journal of m.terials Science & Technology 1994年第5期10卷 313-320页

作者： m.B.Peterson (Wear Sciences, 925 m.llard Circle, Arnold m.ryland 21012, USA)(To whom.correspondence should be addressed)S.J.calabrese (Rensselaer Polytechnic Institute, Troy, NY, USA)Shizhuo LI and Xiaoxia JIANG (Institute of m.tal Research, Chinese Acad Wear Sciences Arnold United States

A brief review is given about the friction and wear properties of high tem.erature alloys. Above a critical tem.erature, if the oxide becom.s ductile, it will flow over the surface and prevent m.tal-to-m.tat contact. In order to study the tribology of oxide lubrication. a series of tests were carried out using Cu(ReO4)2 as a lubricant. The effects of tim.. Surface finish. substrates. load and tem.erature were investigated. A m.chanism.of lubrication is proposed in which the surface slip predom.nates along with m.chanical attachm.nt of oxide to the surface.

关键词： Re Cu Friction of Alloys at High Tem.erature ADA Ni

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Ni-Cu-Re合金自生氧化膜的减摩机理

材料科学进展 1990年第1期4卷 1-7页

作者：李诗卓姜晓霞 m.B.Peterson S.J.calabrese 中国科学院金属研究所瑞生纳工学院

用旋转式高温销盘摩擦试验机测定了 Ni、Ni-Re,Ni-Cu、Cu-Re 及 Ni-Cu-Re 等合金摩擦系数随温度的变化;用 X 射线测定了磨屑及氧化层、Ni-Cu-Re 550℃的挥发物结构;能谱测定了磨屑、氧化膜及近表层成分,还进行了静态氧化实验,试验发现... 详细信息

用旋转式高温销盘摩擦试验机测定了 Ni、Ni-Re,Ni-Cu、Cu-Re 及 Ni-Cu-Re 等合金摩擦系数随温度的变化;用 X 射线测定了磨屑及氧化层、Ni-Cu-Re 550℃的挥发物结构;能谱测定了磨屑、氧化膜及近表层成分,还进行了静态氧化实验,试验发现高温摩擦实验后样品近表层有富 Re 层,它不利于氧化膜的形成,但降低了合金的氧化速度,提高了耐磨性,试验结果还表明了Ni-Cu-Re 系高温摩擦系数较低(0.2-0.3),原因是 Cu,Re 共同作用形成易挥发性氧化物起的润滑作用,提出了氧化膜的减摩模型。

关键词：氧化膜减摩机理 Ni-Cu-Re合金

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Co-Cu-Re 高温自润滑合金的研究

材料科学进展 1989年第6期3卷 487-493页

作者：姜晓霞李诗卓 m.B.Peterson S.J.calabrese 中国科学院金属究所美国瑞声纳工学院

冶炼了五种 Co-Cu-Re 合金样品。当 Cu 和 Re 含量较低时,只有两种结构的 Co 固溶体相,Cu 和 Re 量达12.5at.-%,出现 Cu 及 Re 的固溶相。用往复式高温销盘摩擦试验机测定摩擦系数随温度变化,并与 Co,Co-Re,Cu-Re 对比,用 X 射线及能谱... 详细信息

冶炼了五种 Co-Cu-Re 合金样品。当 Cu 和 Re 含量较低时,只有两种结构的 Co 固溶体相,Cu 和 Re 量达12.5at.-%,出现 Cu 及 Re 的固溶相。用往复式高温销盘摩擦试验机测定摩擦系数随温度变化,并与 Co,Co-Re,Cu-Re 对比,用 X 射线及能谱测定磨屑、表层氧化物及 Co-Cu-Re 550℃挥发物结构,测定磨屑及近表层成分。试验结果表明,Co-Cu-Re 合金高温摩擦系数低至0.15—0.20的原因是,Re 抑制了 Co 的相变及形成易挥发的含 Re 氧化物膜起润滑作用。设计了自生氧化膜减摩作用模型。

关键词：自润滑合金钴铼摩擦氧化膜铜