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Two-Level Schwarz Preconditioners for Super Penalty Discontinuous Galerkin Methods

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Communications in Computational Physics 2009年第2期5卷 398-412页

作者： paola F.antonietti Blanca Ayuso MOX–Laboratory for Modeling and Scientific Computing Dipartimento di Matematica”F.Brioschi”Politecnico di Milanovia Bonardi 920133 MilanoItaly Departamento de Matematicas Universidad Autonoma de MadridCampus de CantoblancoCtra.de Colmenar Viejo28049 MadridSpain

We extend the construction and analysis of the non-overlapping Schwarz preconditioners proposed in[2,3]to the(non-consistent)super penalty discontinuous Galerkin methods introduced in[5]and[8].We show that the resulting preconditioners are scalable,and we provide the convergence *** also present numerical experiments confirming the sharpness of the theoretical results.

关键词： Schwarz preconditioners super penalty discontinuous Galerkin methods

Small heat shock protein B8:from cell functions to its involvement in diseases and potential therapeutic applications

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Neural Regeneration Research 2025年第10期20卷 2872-2886页

作者： Marta Chierichetti Riccardo Cristofani Valeria Crippa Veronica Ferrari Marta Cozzi Elena Casarotto paola Pramaggiore Laura Cornaggia Guglielmo Patelli Ali Mohamed Margherita Piccolella Mariarita Galbiati paola Rusmini Barbara Tedesco Angelo Poletti Laboratory of Experimental Biology Dipartimento di Scienze Farmacologiche e Biomolecolari“Rodolfo Paoletti”(DiSFeB)Universitàdegli Studi di MilanoMilanItaly

Heat shock protein family B(small)member 8(HSPB8)is a 22 kDa ubiquitously expressed protein belonging to the family of small heat shock ***8 is involved in various cellular mechanisms mainly related to proteotoxic stress response and in other processes such as inflammation,cell division,and ***8 binds misfolded clients to prevent their aggregation by assisting protein refolding or degradation through chaperone-assisted selective *** line with this function,the pro-degradative activity of HSPB8 has been found protective in several neurodegenerative and neuromuscular diseases characterized by protein misfolding and *** cancer,HSPB8 has a dual role being capable of exerting either a pro-or an anti-tumoral activity depending on the pathways and factors expressed by the model of cancer under ***,HSPB8 exerts a protective function in different diseases by modulating the inflammatory response,which characterizes not only neurodegenerative diseases,but also other chronic or acute conditions affecting the nervous system,such as multiple sclerosis and intracerebellar *** note,HSPB8 modulation may represent a therapeutic approach in other neurological conditions that develop as a secondary consequence of other *** is the case of cognitive impairment related to diabetes mellitus,in which HSPB8 exerts a protective activity by assuring mitochondrial *** review aims to summarize the diverse and multiple functions of HSPB8 in different pathological conditions,focusing on the beneficial effects of its ***-based and alternative therapeutic approaches targeting HSPB8 and its regulated pathways will be discussed,emphasizing how new strategies for cell and tissue-specific delivery represent an avenue to advance in disease treatments.

关键词： aggregation autophagy cancer chaperone chaperone-assisted selective autophagy cognitive impairment HSPB8 neuroinflammation neuromuscular diseases therapy

Nano-drug delivery systems integrated with low radiation doses for enhanced therapeutic efficacy in cancer treatment

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World Journal of Clinical Cases 2025年第10期13卷 14-27页

作者： Antonio Pontoriero paola Critelli Marco Zeppieri Alberto Bosurgi Stefania Guercio Maria Caffo Filippo Flavio Angileri Silvana Parisi Salvatore Lavalle Stefano Pergolizzi Radiation Oncology Unit Department of BiomedicalDental Science and Morphological and Functional ImagesUniversity of MessinaMessina 98125Italy Department of Ophthalmology University Hospital of UdineUdine 33100Italy Neurosurgery Unit Department of BiomedicalDental Science and Morphological and Functional ImagesMessinaItalyMessina 98125Italy Lavalle Department of Medicine and SurgeryUniversity of Enna"Kore"Enna 94100Italy

BACKGROUND Precision medicine is an emerging field that includes tumor-targeted delivery and tumor *** review explores the synergistic potential of combining nano-drug delivery systems with low radiation doses to achieve optimized therapeutic outcomes,particularly in the context of cancer ***-based drug carriers offer precise and targeted delivery,enhancing the therapeutic index of anticancer *** use of lower radiation doses has become a focus in radiation oncology to minimize off-target effects on healthy tissues in palliation treatment with high-target volume *** To conduct a bibliometric review of nanomedicine and glioblastoma(GBM),all relevant studies from the last two decades were *** The search strategy comprised the keywords“nanomedicine”and“glioblastoma”in the title and/or *** English-language documents from 1 January 2000 to 31 December 2023 were considered for the analysis.R code(version 4.2.0)with R Studio(version 2022.12.0-353)and the Bibliometrix package(version 4.0.1)were used for the analysis.A total of 680 documents were *** We analyzed the bibliometric features of nanomedicine in *** the limitations of the research,our analysis aims to highlight the increasing interest of researchers in the precision medicine field in GBM treatment and lead us to suggest further studies focusing on the association between nanomedicine and *** Due to the poor prognosis associated with GBM,new therapeutic approaches are *** is an increasing interest in precision medicine,which includes nanomedicine and radiotherapy,for GBM *** integration enhances the efficacy of targeted treatments and provides a promising avenue for reducing adverse effects,signifying a notable advancement in precision oncology.

关键词： Nanomedicine Nanoparticles Drug-delivery Radiotherapy Combination therapy

Analysis of the fluid-bed stability of FCC catalysts at high temperature in terms of bed elasticity

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Particuology 2008年第1期6卷 30-37页

作者： paola Lettieri Luca Mazzei Department of Chemical Engineering University College London Torrington Place London WC1E 7JE UK

The effect of temperature on the fluid-bed stability of three FCC catalysts has been analyzed through considerations on fluid-bed elasticity. Experimental findings on the effect of temperature on the elasticity modulus at minimum bubbling conditions, （E）mb, were analyzed using the hydrodynamic fluid-bed stability model developed by Foscolo and Gibilaro （1984） and adopting the interparticle-forces-based stability criterion developed by Mutsers and Rietema （1977）. For both models, the parameters which control changes in （E）mb with temperature are discussed, in order to establish the origin of the fluid-bed elasticity and analyze the ability of these models to discriminate between the relative importance of the hydrodynamic and interoarticle forces on the stability of the fluidized catalysts.

关键词： Fluidization FCC catalysts High temperature Stability Bed elasticity

Chemical composition and Zn bioavailability of the soil solution extracted from Zn amended variable charge soils

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Journal of Environmental Sciences 2010年第9期22卷 1398-1406页

作者： Mariavittoria Zampella paola Adamo Department of Soil Plant Environmental and Animal Production Sciences University of Naples Federico II

A study on variable charge soils （volcanic Italian and podzolic Scottish soils） was performed to investigate the influence of soil properties on the chemical composition of soil solution. Zinc speciation, bioavallability and toxicity in the soil solution were examined. The soils were spiked with increasing amounts of Zn （0, 100, 200, 400 and 1000 mg/kg） and the soil solutions were extracted using rhizon soil moisture samplers. The pH, total organic carbon （TOC）, base cations, anions, total Zn and free Zn^2＋ in soil solution were analysed. A rapid bioassay with the luminescent bacterium Escherichia coli HB 101 pUCD607 was performed to assess Zn toxicity. The influence of soil type and Zn treatments on the chemical composition of soil solution and on Zn toxicity was considered and discussed. Different trends of total and free Zn concentrations, base cations desorption and luminescence of E. coli HB 101 pUCD607 were observed. The soil solution extracted from the volcanic soils had very low total and free Zn concentrations and showed specific Zn^2＋/Ca^2＋ exchange. The soil solution from the podzolic soil had much higher total and free Zn concentrations and showed no evidence of specific Zn^2＋/Ca^2＋ exchange. In comparison with the subalkaline volcanic soils, the acidic podzol showed enhanced levels of toxic free Zn^2＋ and consequently stronger effects on E. coli viability.

关键词： rhizosamplers chemical speciation fractionation ecotoxicological test

Extreme Cities and Bad Places

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International Journal of Disaster Risk Science 2012年第1期3卷 3-10页

作者： paola Viganò Department of Urbanism University IUAV of Venice(Istituto Universitario di Architettura di Venezia)30125 VeniceItaly

This article considers places where climate change-induced hazards will be particularly important,focusing on two examples,the lagoon location of Venice and the Garonne riverbank location of Bordeaux. The Venice lagoon territory is close to the coast and has a dispersed form of urban development. Our project experiments resulted in the formulation of a series of adaptation strategies to increased disaster risks,including returning current agricultural land and residential areas to their original state as wetlands and marshes before their reclamation during the early decades of the twentieth century. The scenarios introduce space as a relevant variable into the debate about the impact of climate change and adaptation. This article also deals with the recovery of “bad places,” such as the urban blight on the Garonne riverbanks of Bordeaux,and their relationship with sustainability and disaster risks. Increasingly,the emphasis on minimizing energy consumption and promoting recycling forces cities to reuse places of elevated risk. Only very recently in modern urban planning are polluted and risky areas frequently selected for new development projects to reclaim the vast areas of existing brownfields in the name of sustainability. Integrating disaster risk reduction into a new economic and social context has thus become an extremely important part of contemporary urban design and planning for these reclaimed(bad) areas. The research concludes that urban and territorial design should and can integrate the inevitability of risk. This is necessary for developing approaches and strategies that offer some rethinking about “wicked” problems,long-term time horizons,radical imagination,dynamic representations,and minute territorial readings in contemporary urban planning.

关键词： disaster urban contemporary

Genetic predisposition to pancreatic cancer

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World Journal of Gastroenterology 2014年第31期20卷 10778-10789页

作者： paola Ghiorzo Department of Internal Medicine and Medical Specialties University of Genoa and IRCCS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazioanle per la Ricerca sul Cancro 16132 Genoa Italy

Pancreatic adenocarcinoma(PC) is the most deadly of the common cancers. Owing to its rapid progression and almost certain fatal outcome, identifying individuals at risk and detecting early lesions are crucial to improve outcome. Genetic risk factors are believed to play a major role. Approximately 10% of PC is estimated to have familial inheritance. Several germline mutations have been found to be involved in hereditary forms of PC, including both familial PC(FPC) and PC as one of the manifestations of a hereditary cancer syndrome or other hereditary conditions. Although most of the susceptibility genes for FPC have yet to be identified, next-generation sequencing studies are likely to provide important insights. The risk of PC in FPC is sufficiently high to recommend screening of high-risk individuals; thus, defining such individuals appropriately is the key. Candidate genes have been described and patients considered for screening programs under research protocols should first be tested for presence of germline mutations in the BRCA2, PALB2 and ATM genes. In specific PC populations, including in Italy, hereditary cancer predisposition genes such as CDKN2 A also explain a considerable fraction of FPC.

关键词： Pancreatic adenocarcinoma Susceptibility genes CDKN2A Melanoma Hereditary cancer syndromes Screening

Minimal Free Resolutions of Zero-dimensional Schemes in P1 ×P1

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Algebra Colloquium 2015年第1期22卷 97-108页

作者： paola Bonacini Lucia Marino Universita degli Studi di Catania ViMe A. Doria 6 95125 Catania Italy

Let X be a zero-dimensional scheme in p1 × p1. Then X has a minimal free resolution of length 2 if and only if X is ACM. In this paper we determine a class of reduced schemes whose resolutions, similarly to the ACM case, can be obtained by their Hilbert functions and depend only on their distributions of points in a grid of lines. Moreover, a minimal set of generators of the ideal of these schemes is given by curves split into the union of lines.

关键词： resolution Hilbert function separators

Plant virus-derived siRNAs“turn on”broad-spectrum plant immunity in wheat

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Molecular Plant 2021年第7期14卷 1038-1040页

作者： paola Leonetti Vitantonio Pantaleo Department of Biology Agricultural and Food SciencesInstitute for Sustainable Plant ProtectionBari UnitCNRBari 70126Italy

Viruses are the most abundant biological entities on Earth and the major carriers of disease and mortality as well as the drivers of global *** plant viruses potentially influence global processes is an emergent issue,particularly for their putative implications in *** infection and spread,plant viruses are capable of reprogramming host gene expression via RNA silencing by releasing viral suppressors of RNA silencing,viral small interfering RNAs(vsiRNAs),and by inducing the production of viral-associated small interfering RNAs(va-siRNAs).Recently,studies on various crop-virus pathosystems suggest that RNA silencing suppressors(RSSs)。

关键词： immunity mortality releasing