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On the Regularity of Shear Thickening Viscous Fluids

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Chinese Annals of Mathematics,Series b 2009年第3期30卷 273-280页

作者： francesca CRISPO Dipartimento di Matematica Applicata "U.Dini" Università di PisaVia Buonarroti 1/c56127 PisaItaly.

The aim of this note is to improve the regularity results obtained by H. beirao da Veiga in 2008 for a class of p-fluid flows in a cubic domain. The key idea is exploiting the better regularity of solutions in the tan... 详细信息

关键词： Non-Newtonian fluids Shear dependent viscosity boundary regularity

Prevalence of functional gastrointestinal disorders in children with celiac disease on different types of gluten-free diets

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World Journal of Gastroenterology 2022年第46期28卷 6589-6598页

作者： francesca Fiori Nastro Maria Rosaria Serra Sabrina Cenni Daniela Pacella Massimo Martinelli Erasmo Miele Annamaria Staiano Carlo Tolone Renata Auricchio Caterina Strisciuglio Department of Translational Medical Science Section of PediatricsUniversity of Naples“Federico Ⅱ”Naples 80100Italy Department of Experimental Medicine University of Campania“Luigi Vanvitelli”Naples 80100Italy Department of Public Health University of Naples“Federico Ⅱ”Naples 80100Italy Department of Woman Child and General and Specialistic SurgeryUniversity of Campania“Luigi Vanvitelli”Naples 80138Italy

bACKGROUND Functional gastrointestinal disorders(FGIDs)are common during the pediatric *** are not related to biochemical or structural ***,since they have a high prevalence,several studies have evaluated an overlap between FGIDs and organic *** with celiac disease(CD)have been shown to be at an increased risk for functional abdominal pain,even if they adhere well to a gluten-free diet(GFD).Little information is available for the pediatric age *** aims of our study were to evaluate the prevalence of FGIDS in CD children 1 year after diagnosis and to compare the prevalence of FGIDs in CD children on a GFD with processed foods compared with those on a GFD with natural *** To assess the prevalence of FGIDs in children with CD after 1 year of follow-up and to compare the prevalence of FGIDs in children with CD on a GFD with processed foods and in children on a GFD with natural *** We recruited pediatric patients aged 1-18 years with a new CD *** were randomized to two groups:Group A on a GFD with processed foods(diet 1);and group b on a GFD with natural products(diet 2).Clinical monitoring,diet assessment and the questionnaire on pediatric gastrointestinal symptoms-Rome IV version were performed at diagnosis(T0)and after 12 mo of follow-up(T1).Dietary intake was assessed using a 3-d food diary *** from the diaries were evaluated using WinFood nutrient analysis *** assessed the prevalence of FGIDs at T1 and the correlation with the type of *** We registered 104 CD children,with 55 patients in group A(53.0%)and 49 patients in group b(47.0%).Initially,30 of the 55(54.5%)CD children were symptomatic in group A,while 25 of 49(51.0%)were symptomatic in group *** T1,in spite of a low or negative serology for CD,FGIDs prevalence was 10/55(18.0%)in group A and 8/49(16.3%)in group b,with no statistically significant difference between the two groups(P=0.780).At T1 the

关键词： Functional gastrointestinal disorders Celiac disease Gluten free diet Gastrointestinal symptoms Children

Assessing stakeholders'perceptions and values towards social-ecological systems using participatory methods

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Ecological Processes 2014年第1期3卷 31-42页

作者： Grace b Villamor Ignacio Palomo Cesar A lopez Santiago Elisa Oteros-Rozas Joe Hill Department of Ecology and Natural Resources Management Center for Development Research(ZEF)University of Bonn53113BonnGermany World Agroforestry Centre(ICRAF) Jl.Situ Gede16115 BogorIndonesia basque Centre for Climate Change(bC3) Alameda Urquijo 448008 BilbaoSpain Department of Ecology Social-Ecological Systems LaboratoryUniversidad Autónoma de MadridMadrid 28049Spain Department of Political and Cultural Change Center for Development Research(ZEF)University of Bonn53113 BonnGermany

Introduction:Many conservation initiatives for managing social-ecological landscapes factor in the best available biophysical ***,insufficient consideration of social aspects can render such initiatives *** incorporating stakeholders'perceptions and values,and by involving stakeholders(transparently)in decision-making processes,conservation plans and efforts can better achieve desired goals and ***:In this paper,we present and analyze three case studies within different ecological and land use *** case study uses different participatory approaches to elicit stakeholders'perceptions and values,while seeking to involve stakeholders in the decision-making *** case studies are the following:(1)participatory scenario planning for a protected area in Doñana coastal wetland in Southwestern Spain;(2)assessment of ecosystem services trade-offs and social responses on rewards for agro-biodiversity in the rubber agroforest landscape in Jambi,Indonesia;and(3)socio-cultural evaluation,through visual stimuli,of ecosystem services provided by transhumance cultural landscapes in Central *** discuss how stakeholders perceive and value their environments and to what extent participatory approaches are useful for capturing information relating to land use and ecological ***:Social-ecological systems are inherently complex,having a variety of interacting actors with different types of ecological knowledge,interests,and *** participatory tools or approaches are appropriate for various and specific contexts and *** and integrating the various types of knowledge and values of different actors can contribute to a more comprehensive understanding of social-ecological systems.

关键词： Actors Ecosystem services Ecological knowledge Social processes Socio-cultural valuation Values

Spectrally resolved Hong-Ou-Mandel interferometry for quantum-optical coherence tomography

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Photonics Research 2020年第6期8卷 1023-1034页

作者： PAbLO YEPIZ-GRACIANO ALI MICHEL ANGULO MARTINEZ DORILIAN lopez-MAGO HECTOR CRUZ-RAMIREZ ALFRED b.U'REN Instituto de Ciencias Nucleares Universidad Naciona/Autonoma de MexicoApdo.Postal 70-543Ciudad de Mexico 04510Mexico Tecnologico de Monterrey Escuela de Ingenieria y CienciasAve.Eugenio Garza Sada 2501MonterreyN.L.64849Mexico

In this paper,we revisit the well-known Hong_Ou-Mandel(HOM)effect in which two photons,which meet at a beamsplitter,can interfere destructively,leading to null in coincidence *** a standard HOM measurement,the coincidence counts across the two output ports of the beamsplitter are monitored as the temporal delay be-tween the two photons prior to the beamsplitter is varied,resulting in the well-known HOM *** show,both theoretically and experimentally,that by leaving the delay fixed at a particular value while relying on spectrally resolved coincidence photon counting,we can reconstruct the HOM dip,which would have been obtained through a standard delay-scanning,non-spectrally resolved HOM *** show that our numerical reconstruction procedure exhibits a novel dispersion cancellation effect,to all *** discuss how our present work can lead to a drastic reduction in the time required to acquire a HOM interferogram,and specifically discuss how this could be of particular importance for the implementation of fficient quantum optical coherence tomog-raphy devices.

关键词： resolved coincidence quantum

Hepatitis b virus and hepatitis C virus dual infection

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World Journal of Gastroenterology 2014年第40期20卷 14559-14567页

作者： Gaia Caccamo francesca Saffioti Giovanni Raimondo Division of Clinical and Molecular Hepatology Department of Internal Medicine University Hospital of Messina 98124 Messina Italy

Hepatitis b virus(HbV)and hepatitis C virus(HCV)share common mode of transmission and both are able to induce a chronic *** HbV/HCV chronic coinfection is a fairly frequent occurrence,especially in high endemic areas and among individuals at high risk of parenterally transmitted *** intracellular interplay between HbV and HCV has not yet been sufficiently clarified,also due to the lack of a proper in vitro cellular *** evaluation of serum HbV DNA and HCV RNA amounts has revealed that complex virological profiles may be present in coinfected *** HbV/HCV infection has been associated to a severe course of the liver disease and to a high risk of developing hepatocellular *** the clinical importance,solid evidence and clear guidelines for treatment of this special population are still *** review summarizes the available data on the virological and clinical features as well as the therapeutic options of the dual HbV/HCV infection,and highlights the aspects that need to be better clarified.

关键词： Hepatitis b virus/hepatitis C virus coinfection Chronic hepatitis Viral interaction Cirrhosis Hepatocellular carcinoma Antiviral therapy

An imbalance between innate and adaptive immune cells at the maternal-fetal interface occurs prior to endotoxin-induced preterm birth

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Cellular & Molecular Immunology 2016年第4期13卷 462-473页

作者： Marcia Arenas-Hernandez Roberto Romero Derek St Louis Sonia S Hassan Emily b Kaye Nardhy Gomez-lopez Department of Obstetrics & Gynecology Wayne State University School of Medicine Detroit Michigan USA perinatology Research branch Program for Perinatal Research and Obstetrics Division of Intramural Research Eunice Kennedy ShriverNational Institute of Child l~ealth and Human DevelopmentNIC.HD/NIHDHHS Bethesda Maryland and Detroit Michigan USA Departme.nt of Obstetrics and Gynecology University of M chigan Ann ArborMichigan USA Department of Epidemiology and biostatistics Michigan State University East Lansing Michigan USA Department of Molecular Obstetrics and Genetics Wayne State University Detroit Michigan USA Department of ImmunoLogy & MicrobioLogy Wayne State University School of Medicine Detroit Michigan USA

Preterm birth （PTb） is the leading cause of neonatal morbidity and mortality worldwide. A transition from an anti-inflammatory state to a pro-inflammatory state in the mother and at the maternal-fetal interface has been implicated in the pathophysiology of microbial-induced preterm labor. However, it is unclear which immune cells mediate this transition. We hypothesized that an imbalance between innate and adaptive immune cells at the maternal-fetal interface will occur prior to microbial-induced preterm labor. Using an established murine model of endotoxin-induced PTb, our results demonstrate that prior to delivery there is a reduction of CD4 ＋ regulatory T cells （Tregs） in the uterine tissues. This reduction is neither linked to a diminished number of Tregs in the spleen, nor to an impaired production of ILIO, CCL17, or CCL22 by the uterine tissues. Endotoxin administration to pregnant mice does not alter effector CD4＋ T cells at the maternal-fetal interface. However, it causes an imbalance between Tregs （CD4＋ and CD8＋）, effector CD8＋ T cells, and Th17 cells in the spleen. In addition, endotoxin administration to pregnant mice leads to an excessive production of CCL2, CCL3, CCL17, and CCL22 by the uterine tissues as well as abundant neutrophils. This imbalance in the uterine microenvironment is accompanied by scarce APC-like cells such as macrophages and MHC II ＋ neutrophils. Collectively, these results demonstrate that endotoxin administration to pregnant mice causes an imbalance between innate and adaptive immune cells at the maternal-fetal interface.

关键词： antigen-presenting cells effector T cells inflammation labor lipopolysaccharide macrophages microbial product neutrophils pregnancy preterm labor regulatory T cells

biocompatible blends based on Poly(Vinyl Alcohol)and Solid Organic Waste

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Journal of Renewable Materials 2019年第10期7卷 1023-1035页

作者： Antonio Greco francesca Ferrari Raffaella Striani Carola Esposito Corcione Department of Innovation Engineering University of Salento Via per Arnesanno73100LecceItaly

This work is aimed at the development of new green composite materials through the incorporation of the solid organic waste(SOW)in a thermoplastic *** being ground,the organic waste was exposed to a sterilization process,though an autoclave cycle,in order to obtain a complete removal of the bacterial *** SOW was found to have a high amount of water,about 65-70%,which made uneconomical its further treatment to reduce the water ***,a water soluble polymer,poly(vinyl alcohol)(PVA)was chosen in order to produce SOW based ***,in order to reduce the viscosity of the PVA/SOW slurry,further amount of water was *** very low viscosity attained by the water suspension allowed to process the PVA/SOW blends by a pressure-free process,for the production of samples,which were afterwards subjected to physical and mechanical *** tests showed the promising properties of the developed *** particular,the relevance of porosity was *** the water amount involved a signification increase of porosity,due to a faster water evaporation during *** the other hand,compared to neat PVA,addition of SOW allowed to significantly decrease the porosity of the produced *** this,the mechanical properties of the PVA/SOW blends were shown to be lower than those of neat PVA processed analogously.

关键词： Solid organic waste PVA evaporation porosity mechanical properties

Fiber Cavity Ring Down and Gain Amplification Effect

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Photonic Sensors 2016年第4期6卷 324-327页

作者： Susana SILVA Regina MAGALHAES Rosa Ana PEREZ-HERRERA Manuel lopez-AMO M. b. MARQUES O. FRAZAO IINESC TEC Rua do Campo Alegre 687 4169-007 Porto Portugal Dept. de Fisica e Astronomia da Faculdade de Ciencias da Universidade do Porto Rua do Campo Alegre 687 4169-007 Porto Portugal public University of Navarra Dept. of Electric and Electronic Engineering Campus de Arrosadla Pamplona Spain.

The effect of an erbium-doped fiber amplifier （EDFA） placed inside the fiber ring of a cavity ring down （CRD） configuration is studied. The limitations and advantages of this configuration are discussed, and the study of the ring-down time as a function of the current applied and gain to the EDFA is also presented. In this case, the power fluctuations in the output signal are strongly dependent on the cavity ring-down time with the EDFA gain.

关键词： Cavity ring down EDFA multimode laser optical fibers.

Viral blips during long-term treatment with standard or double dose lamivudine in Hbe antigen negative chronic hepatitis b

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World Journal of Gastroenterology 2007年第42期13卷 5642-5647页

作者： Gianfranca Stornaiuolo Maria Stanzione Giuseppina brancaccio Gianluca Cuomo Vincenza Precone Sebastiano Di biase francesca M Felaco Felice Piccinino Giovanni b Gaeta Viral Hepatitis Unit Department of Infectious Diseases Second University Naples Italy Infectious Disease Unit Department of Infectious Diseases Second University Naples Italy Merigen Laboratory of Molecular Biology Naples Italy

AIM:To evaluate safety and effect on hepatitis b virus(HbV)suppression of a long-term treatment with lamivudine(LAM)at standard(100 mg/d)or double(200 mg/d)dose in chronic hepatitis ***:This was a case study with matched controls(1:3)in patients with chronic hepatitis b with anti-Hbe ***:Twelve patients received LAM 200 mg/d and 35 LAM 100 mg/d,for a median of 28 mo.A primary response(PR;*** HbV-DNA with Amplicor assay)was achieved in 100% of LAM-200 patients and 83% of LAM-100 patients.A virological breakthrough occurred in 16.7 and 24.7%,respectively,of the PR-patients,with the appearance of typical LAM resistance mutations in all but one *** blips(*** HbV-DNA below 80 IU/mL in patients who tested negative at Amplicor assay)were detected using a real time polymerase chain reaction(PCR)and occurred in seven out of nine patients with subsequent bT and in four out of 32 patients with end-of-study response(77.7% vs 12.5%;P = 0.001)at chi-square test).At the end of the study,51.4% of LAM-100 patients and 83.3% of LAM-200 patients had remained stably HbV-DNA ***-dose LAM was well ***:Long-term treatment of anti-Hbe positive chronic hepatitis b with double dose lamivudine causes a more profound and stable viral suppression ascompared to conventional treatment.

关键词： Lamivudine Hepatitis b Chronic Hepatitis Polymerase chain reaction