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A Constructive Method for Computing Generalized Manley-Rowe Constants of Motion

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Communications in Computational Physics 2013年第9期14卷 1094-1102页

作者： Elena Kartashova loredana Tec IFA J.Kepler UniversityLinz 4040Austria RISC J.Kepler UniversityLinz 4040Austria

The Manley-Rowe constants of motion(MRC)are conservation laws written out for a dynamical systemdescribing the time evolution of the amplitudes in resonant *** this paper we extend the concept of MRC to resonance clusters of any form yielding generalized Manley-Rowe constants(gMRC)and give a constructive method how to compute *** also give details of a Mathematica implementation of this *** provide integrability of the underlying dynamical system,gMRC generally do not but may be used for qualitative and numerical study of dynamical systems describing generic resonance clusters.

关键词： Resonance clusters Hamiltonian formulation discretewave turbulence NR-diagram invariants of motion

The role of an integration identity in the analysis of the Cauchy-Leray transform

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Science China Mathematics 2017年第11期60卷 1923-1936页

作者： LANZANI loredana STEIN Elias M. Department of Mathematics Syracuse University Department of Mathematics Princeton University

The purpose of this paper is to complement the results by Lanzani and Stein(2017) by showing the dense definability of the Cauchy-Leray transform for the domains that give the counter-examples of Lanzani and Stein(2017), where L^p-boundedness is shown to fail when either the "near" C^2 boundary regularity, or the strong C-linear convexity assumption is dropped.

关键词： Hardy space Cauchy integral Cauchy-Szego projection Lebesgue space pseudoconvex domain minimal smoothness Leray-Levi measure

Solvability of the Dirichlet Problem in W^(2,p )for a Class of Elliptic Equations with Singular Data

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Acta Mathematica Sinica,English Series 2014年第5期30卷 737-746页

作者： loredana CASO Roberta D'AMBROSIO Maria TRANSIRICO Dipartimento di Matematica Universit`a di SalernoVia Giovanni Paolo II 132I - 84084 Fisciano (SA) Italy

We prove an existence and uniqueness result for the Dirichlet problem for a class of elliptic equations with singular data in weighted Sobolev spaces.

关键词： Elliptic equations a priori estimates uniqueness and existence results weighted spaces

Role of new endoscopic techniques in inflammatory bowel disease management: Has the change come?

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World Journal of Gastroenterology 2017年第24期23卷 4324-4329页

作者： loredana goran lucian negreanu ana maria negreanu Internal Medicine Ⅱ Gastroenterology department University Hospital Carol Davila University of Medicine

Despite significant therapeutic progress in recent years,inflammatory bowel disease(IBD),which includes Crohn’s disease and ulcerative colitis,remains a challenge regarding its pathogenesis and long-term *** concepts have emerged in the management of this disease,such as the"treat-totarget"concept,in which mucosal healing plays a key role in the evolution of IBD,the risk of recurrence and the need for *** is essential for the assessment of mucosal inflammation and plays a pivotal role in the analysis of mucosal healing in patients with *** is also essential in the detection of dysplasia and in the identification of the risk of colon *** current surveillance strategy for dysplasia in IBD patients indicates white-light endoscopy with non-targeted *** new chromoendoscopy techniques provide substantial benefits for both clinicians and ***-band imaging(NBI)has similar rates of dysplastic lesion detection as whitelight endoscopy,and it seems that NBI identifies more adenoma-like *** it is used instinctively by many endoscopists,the combination of these two techniques might improve the rate of dysplasia *** spectral imaging color enhancement can help differentiate dysplastic and non-dysplastic lesions and can also predict the risk of recurrence,which allows us to modulate the treatment to gain better control of the *** combination of noninvasive serum and stool biomarkers with endoscopy will improve the monitoring and limit the evolution of IBD because it enables the use of a personalized approach to each patient based on that patient’s history and risk factors.

关键词： Chromoendoscopy Flexible spectral imaging color enhancement Inflammatory bowel disease Dysplasia Mucosal healing Narrow band imaging

Innovation attributes and managers'decisions about the adoption of innovations in organizations:A meta-analytical review

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International Journal of Innovation Studies 2017年第2期1卷 107-133页

作者： Gianluca Vagnani loredana Volpe Department of Management of Sapienza University of RomeCastro Laurenziano 9Roma 00191Italy

The adoption of innovations has emerged as one of the dominant research topic in the management of innovations in organizations,though investigations often yield mixed *** help managers and researchers improve the effectiveness of their efforts,the authors employed meta-analysis integrated by structural equation modeling to analyze the associations between the attributes of innovations,behavioral preferences of managers and organizations'innovation adoption decisions in a mediated-moderated *** findings offer evidences that attributes of innovations influence behavioral preferences of managers and,in turn,adoption decisions in *** also observe that the context in which the adoption decision takes place and the research settings employed by scholars ***,the theoretical contribution and practical implications of our meta-analytical results are discussed.

关键词： Attributes of innovations Managers'behavioral preferences Organizations'innovation adoption decisions Meta-analysis Mediation-moderation

Shape memory composite structures for self-deployable solar sails

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Astrodynamics 2019年第3期3卷 247-255页

作者： loredana Santo Denise Bellisario Leamdro Iorio Fabrizio Quadrini Department of Industrial Engineering University of Rome Tor VergataRome00133Italy

Shape memory composites(SMCs)combine mechanical performances of composite materials with functional behavior of shape memory *** can be used to produce the external frame of self-deployable solar sails with very low weight in comparison with traditional composite ***,heat activation is necessary for deploying instead of complex mechanical *** this study,the mechanical behavior of a solar sail with SMC frame is simulated by means of finite element *** considerations are made on sail deployment configuration,size/weight ratio of solar sails,and SMC *** experimental activity has been also performed to provide suitable candidates for the composite laminates of the SMC *** and instrumented recovery tests have been carried out on 2-plies carbon-fiber laminates with a shape memory interlayer.

关键词： solar sail shape memory composite finite element modeling carbon-fiber composite self-deployable structure

The role of an integration identity in the analysis of the Cauchy-Leraytransform

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中国科学：数学 2017年第11期47卷 J0001-J0006页

作者： LANZANI loredana STEIN Elias M. Department of Mathematics Syracuse University Department of Mathematics Princeton University

The purpose of this paper is to complement the results by Lanzani and Stein （2017） by showing thedense definability of the Cauchy-Leray transform for the domains that give the counter-examples of Lanzani andStein （2017）, where LP-boundedness is shown to fail when either the ＂near＂ C2 boundary regularity, or the strongC-linear convexity assumption is dropped.

关键词： Hardy space Cauchy integral Cauchy-Szego projection Lebesgue space pseudoconvex do-main minimal smoothness Leray-Levi measure

The role of antioxidant therapy in the treatment of male infertility： an overview

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Asian Journal of Andrology 2011年第5期13卷 690-697页

作者： Francesco Lombardo Andrea Sansone Francesco Romanelli DonateUa Paoli loredana Gandiniand Andrea Lenzi Department of Experimental Medicine Policlinico ＇Umberto I＇ University of Rome ＇La Sapienza＇ Rome 00161 Italy

In recent years, many studies have focused on the effect of oxidative stress, reactive oxygen species （ROS） and antioxidants on the male eproductive system. Under physiological conditions, sperm produces small amounts of ROS, which are needed for fertilisation, acrosome reaction and capacitation. However, if an increased production of ROS is not associated with a similar increase in scavenging systems, peroxidative damage of the sperm plasma membrane and loss of DNA integrity typically occur, which leads to cell death and reduced fertility. Furthermore, since there is no linear correlation between sperm quality and pregnancy rates, an improvement in semen parameters should not be the sole outcome considered in studies of antioxidant therapies. A definitive conclusion regarding the benefit of these therapies is difficult to obtain, as most of the previous studies lacked control groups, considered different antioxidants in different combinations and doses, or did not evaluate pregnancy rates in previously infertile couples. Even if beneficial effects were reported in a few cases of male infertility, more multicentre, double-blind studies performed with the same criteria are necessarv for an increased understanding of the effects of various antioxidants on fertility,

关键词： antioxidants male infertility oxidative stress reactive oxygen species

Smad7 dependent expression signature highlights BMP2 and HK2 signaling in HSC transdifferentiation

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World Journal of Gastroenterology 2010年第41期16卷 5211-5224页

作者： Bernd Denecke Lucia Wickert loredana Ciuclan Steven Dooley Nadja M Meindl-Beinker Yan Liu Interdisciplinary Centre for Clinical Research (IZKF) Aachen RWTH Aachen University 52074 Aachen Germany Institute of Clinical Chemistry and Pathobiochemistry of RWTH-University Hospital Department of Biology Babes-Bolyai University 400084 Cluj-Napoca Romania Molecular Hepatology Alcohol Induced Diseases Department of Medicine Ⅱ Medical Faculty Mannheim University of Heidelberg 68167 Mannheim

AIM: To analyse the influence of Smad7, antagonist of transforming growth factor (TGF)-β canonical signaling pathways on hepatic stellate cell (HSC) transdifferentia-tion in detail. METHODS: We systematically analysed genes regulated by TGF-β/Smad7 in activated HSCs by microarray analy-sis and validated the results using real time polymerase chain reaction and Western blotting analysis. RESULTS: We identif ied 100 known and unknown tar-gets underlying the regulation of Smad7 expression and delineated 8 gene ontology groups. Hk2, involved in glycolysis, was one of the most downregulated proteins, while BMP2, activator of the Smad1/5/8 pathway, was extremely upregulated by Smad7. However, BMP2 de-pendent Smad1 activation could be inhibited in vitro by Smad7 overexpression in HSCs. CONCLUSION: We conclude (1) the existence of a tight crosstalk of TGF-β and BMP2 pathways in HSCs and (2) a Smad7 dependently decreased sugar metabolism ameliorates HSC activation probably by energy with-drawal.

关键词： Transforming growth factor-β Smad7 Hepatic stellate cell Gene regulation Glucose metabolism BMP2