检索结果-南通市图书馆

Chinese Journal of Chemistry 2023年第23期41卷 3223-3228页

作者： Aleksandr Voronov Francesco Pancrazzi Ana Maria Constantin raimondo maggi Raffaella Mancuso Bartolo Gabriele Diego Olivieri Carla Carfagna Alessandro Casnati Francesco Rispoli Laura Baldini Nicola Della Ca Department of Chemistry Life Sciences and Environmental Sustainability (SCVSA)University of ParmaParco Area delle Scienze17/A43124 Parma (PR)Italy Center for Energy and Environment (CIDEA) University of ParmaParco Area delle Scienze 181/A43124 Parma (PR)Italy Laboratory of Industrial and Synthetic Organic Chemistry (LISOC) Department of Chemistry and Chemical TechnologiesUniversity of CalabriaVia P.Bucci 12/C87036 Arcavacata di RendeCosenza (CS)Italy Department of Biomolecular Sciences University of Urbino “Carlo Bo”Piazza Rinascimento 661029 Urbino (PU)Italy Department of Industrial Chemistry “T.Montanari” University of BolognaViale Risorgimento 440136 Bologna (BO)Italy

A highly selective palladium-catalyzed carbonylation of 2-alkynylanilines bearing an amide moiety to condensed six-membered heterocyclic structures has been developed under mild conditions(room temperature and atmospheric pressure of CO).The carbonylative protocol is also compatible with CO surrogates,such as benzene-1,3,5-triyl triformate(TFBen)or the newly developed calix[6]arenes functionalized with six formate groups(CLX[6]CO),which are both capable to release CO in situ.A series of tricyclic fused heterocycles containing the important oxazino-quinolinone scaffold have been selectively obtained(only the 6-endo-dig cyclization mode has been observed)in good to excellent yields(up to 99%).

关键词： Pd-catalysis Carbonylation Alkynes CO surrogates 6-endo-dig Calixarenes C1 building blocks Domino reactions

Chronically denervated distal nerve stump inhibits peripheral nerve regeneration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2017年第5期12卷 739-740页

作者： Giulia Ronchi Stefania raimondo Department of Clinical and Biological Sciences University of TorinoOrbassano(To)Italy Neuroscience Institute Cavalieri Ottolenghi(NICO) Orbassano(To)Italy

Schwann cells（SCs）and peripheral nerve regeneration：SCs are the principal glial cells of the peripheral nervous system（PNS）.In a healthy nerve,myelinating SCs wrap around larger caliber motor and sensory axons to form the myelin sheath,whereas non-myelinating SCs envelop and support multiple small diameter sensory axons to form Remak ***,they form a basal lamina which surround each SC-axon unit（Hall,2005）.When a peripheral nerve injury occurs,

关键词： SC cell NRG down length

Hepatitis B virus and hepatitis C virus dual infection

在线全文

学校读者我要写书评

暂无评论

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

New insights on the standardization of peripheral nerve regeneration quantitative analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2015年第5期10卷 707-709页

作者： Giulia Ronchi Stefania raimondo Stefano Geuna Giovanna Gambarotta Department of Clinical and Biological Sciences University of TorinoOrbassano (To)Italy Neuroscience Institute Cavalieri Ottolenghi (NICO) Orbassano (To)Italy Neuroscience Institute of Torino (NIT) Interdepartmental Centre of Advanced Studies in NeuroscienceUniversity of TorinoItaly

Peripheral nerves form a complex network connecting the central nervous system and the body. Injuries to peripheral nerves often lead to partial or complete loss of motor, sen- sory and autonomic functions, thus inter... 详细信息

关键词： gene RNA New insights on the standardization of peripheral nerve regeneration quantitative analysis very

Haemostatic system in inflammatory bowel diseases:New players in gut inflammation

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2011年第5期17卷 594-608页

作者： Franco Scaldaferri Stefano Lancellotti Marco Pizzoferrato raimondo De Cristofaro Department of Inter nal Medicine and Medical Specialties Gastroenterology Divi sionCatholic University of Rome00168 RomeItaly Department of Internal Medicine and Medical Specialties Haemostasis Research CenterCatholic University of Rome00168 RomeItaly

Inflammation and coagulation constantly influence each other and are constantly in *** evidence supports this statement in acute inflammatory diseases,such as sepsis,but it also seems to be very important in chronic inflammatory settings,such as inflammatory bowel disease(IBD).Patients with Crohn's disease and ulcerative colitis have an increased risk of thromboembolic events,and several abnormalities concerning coagulation components occur in the endothelial cells of intestinal vessels,where most severe inflammatory abnormalities *** aims of this review are to update and classify the type of coagulation system abnormalities in IBD,and analyze the strict and delicate balance between coagulation and inflammation at the mucosal *** studies on possible therapeutic applications arising from investigations on coagulation abnormalities associated with IBD pathogenesis will also be briefly presented and critically reviewed.

关键词： Activated protein C Coagulation Crohn'sdisease Inflammation Inflammatory bowel disease Platelets Ulcerative colitis

Vibro-acoustic characteristics of multifunctional carbon fiber reinforced panel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2023年第6期24卷 129-139页

作者： Liberata Guadagno Marialuigia raimondo Luigi Vertuccio Giuseppina Barra Maurizio Arena Massimo Viscardi Department of Industrial Engineering University of SalernoVia Giovanni Paolo II13284084FiscianoSAItaly Department of Engineering University of Campania“Luigi Vanvitelli”Via Roma 29I-81031AversaItaly Department of Industrial Engineering Aerospace SectionUniversity of Naples“Federico Ⅱ”Via Claudio 2180125NaplesItaly

This paper deals with the assessment of vibro-acoustic properties of a multifunctional carbon fiber reinfo rced panel manu factured by bulk infu sion,a modified resin film infusion *** components of the epoxy resin were chosen to contrast the electrical insulating property and poor flame resistance of the epoxy resins impregnating carbon woven *** confer electrical conductivity to the resin a percentage of 0.5 wt%of Multi-Wall Carbon Nanotubes(MWCNTs)was dispersed in the resin,whereas to increase flame resistance a percentage of 5 wt%of Glycidil Polyhedral Oligomeric Silsesquioxanes(GPOSS)was solubilized in the epoxy ***,as hardener agents,a mixture of 4,4’-DiaminoDiphenyl Sulfone(DDS)(53.4 wt%)and Bis(3-Aminophenyl)Methyl Phosphine Oxide(BAMPO)(46.7 wt%)was *** values of the electrical conductivity were found satisfactory enough,being4.02×10^(-2)S/m for the multifunctional resin and 1.39×10^(4)S/m for the in-plane conductivity of the panel,whereas the Limiting Oxygen Index(LOI)value of the multifunctional resin was found to increase from 27%to 36%.Considering these promising results,an experimental assessment of the vibro-acoustic properties of the manufactured multifunctional panel was also *** panel was tested mainly to evaluate its low-frequency vibration damping and sound insulation *** manufactured panel demonstrated an improved efficiency if compared to a baseline configuration,presenting almost the double modal damping and a gain of 10 dB on the global noise reduction.

关键词： Composite materials Electrical properties Damping Tunneling atomic force microscopy(TUNA) Vibro-acoustic properties

Role of endosonography in non-malignant pancreatic diseases

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2007年第2期13卷 165-169页

作者： Kyung W Noh Surakit Pungpapong Massimo raimondo Di-vision of Gastroenterology and Hepatology Mayo Clinic College of Medicine Jacksonville FL United States

Endoscopic ultrasound (EUS) has emerged as a valuable tool in the evaluation of benign and malignant pancreatic diseases. The ability to obtain high quality images and perform fine-needle aspiration (FNA) has led EUS to become the diagnostic test of choice when evaluating the pancreas. This article will review the role of EUS in benign pancreatic diseases.

关键词： Endosonography Chronic pancreatitis Pancreatic cyst

Timescales of geological processes: Preface

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geoscience Frontiers 2019年第1期10卷 1-3页

作者： Andrew Putnis Christopher J.Spencer Tom raimondo The Institute for Geoscience Research School of Earth and Planetary Science Curtin University School of Natural and Built Environments University of South Australia

*** One of the major challenges in Geoscience is to understand how the formation and evolution of the Earth System are governed by timescales-that is,how the various geological processes that continue to contribute to its present-day structure and composition operated in the deep *** traditional view of such processes refers to events that occur at immense spatial scales and over hundreds of millions of years,constrained in most cases by the ages of rocks determined using isotopic dating methods or the fossil ***,the modern view of geological processes has increasingly acknowledged that their durations can be significantly shorter than previously thought possible,or indeed detectable without recent analytical *** are a prime example of rapid,high energy and episodic events that have a profound effect on subsequent processes such as metamorphism,fluid transport,and ore formation e the evidence of which is written in microstructures,compositional zoning,and P-T *** studies have also revealed that the reaction rates between fluids and rocks can be extremely rapid relative to geological *** has led to the notion that geological processes are not necessarily continuous over millions of years but may,in fact,be sporadic,with long periods where essentially no reactions take place punctuated by periods of intense activity.

关键词： In Preface Timescales of geological processes

Ability of soil bacterial composition as an indicator of levels of soil erosion in a badland

在线全文

学校读者我要写书评

暂无评论

International Journal of Sediment Research 2022年第4期37卷 493-504页

作者： Gaetano Guida Vincenzo Palmeri Luca Settanni raimondo Gaglio Marco Tolone Vito Ferro Department of Agricultural Food and Forest SciencesUniversity of Palermo

Calanchi(plural of calanco) are typical Italian badlands created by a combination of morphogenetic processes(rill and interrill erosion, gullying, piping, and mass movements) mainly originated by the effect of water. Calanchi are characterized by the sparse and patchy distribution of vegetation, and, in interplant areas, the soil surface is colonized by an association of organisms known as biological soil crust(BSC). A morphometric analysis of 45 basins in the studied calanchi area, based on a high-resolution digital elevation model, showed those basins are sediment removal systems characterized by rapid and relevant erosion processes. The goal of the current research is to evaluate the bacterial composition of BSC and to recognize its signature of land degradation processes in soil samples by a microbiological analysis(culture-dependent and culture-independent approaches). Soil bacterial distribution was investigated by a culture-independent approach, applying Illumina technology in soils with different vegetation cover. Four species were detected in site A(bare soil). In sites B(sparse vegetation) and C(densely vegetated soil) 19 and 18 bacterial taxa were detected, respectively. Sites B and C were characterized by 17 species in common. The microbial communities detected at sites B and C are typical of environments unable to support vegetation and microorganisms that are not specialized to live in these environments. Biodiversity analysis of the bacterial communities of biocrusts, done using richness and evenness indices, confirmed that the composition of the BSC communities can be a signature of the intensity of soil erosion processes.

关键词： Calanchi Biological soil crust Soil bacteria Vegetation cover Water erosion

Role of inflammatory cytokines in peripheral nerve injury

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2012年第29期7卷 2259-2266页

作者： Federica Fregnan Luisa Muratori Anabel Rodriguez Simǒes Maria Giuseppina Giacobini-Robecchi Stefania raimondo Department of Clinical and Biological Sciences University of TurinOrbassano 10043 TurinItaly Neuroscience Institute of the "Cavalieri Ottolenghi" Foundation Orbassano 10043TurinItaly

Inflammatory events occurring in the distal part of an injured peripheral nerve have, nowadays, a great resonance. Investigating the timing of action of the several cytokines in the important stages of Wallerian degeneration helps to understand the regenerative process and design pharmacologic intervention that promotes and expedites recovery. The complex and synergistic action of inflammatory cytokines finally promotes axonal regeneration. Cytokines can be divided into pro- and anti-inflammatory cytokines that upregulate and downregulate, respectively, the production of inflammatory mediators. While pro-inflammatory cytokines are expressed in the first phase of Wallerian degeneration and promote the recruitment of macrophages, anti-inflammatory cytokines are expressed after this recruitment and downregulate the production of all cytokines, thus determining the end of the process. In this review, we describe the major inflammatory cytokines involved in Wallerian degeneration and the early phases of nerve regeneration. In particular, we focus on interleukin-1, interleukin-2, interleukin-6, tumor necrosis factor-β, interleukin-10 and transforming growth factor-β.

关键词： pro-inflammatory cytokines anti-inflammatory cytokines inflammatory reaction peripheral nervoussystem nerve injury wallerian degeneration Schwann cells macrophage axonal regeneration myelin neural regeneration