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A Note on Weakly Isotone Maps and Common Solutions for Differential Systems

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Acta Mathematica Sinica,English Series 2006年第4期22卷 1171-1174页

作者： Giuseppe MARINO Vittorio colao Luigi MUGLIA Dipartimentodi Matematica Universitá degli Studi della Calabria87036Arcavacata di Rende(CS)Italy

In this short note we examine the connection between weakly isotone maps and common solutions for first order Cauchy problems in R^n and, as a rule, in Banach lattices.

关键词： Weakly isotone maps Differential equations Common solutions

Hepatic steatosis,low-grade chronic inflammation and hormone/growth factor/adipokine imbalance

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World Journal of Gastroenterology 2010年第38期16卷 4773-4783页

作者： Giovanni Tarantino Silvia Savastano Annamaria colao Department of Clinical and Experimental Medicine Federico Ⅱ University Medical School of Naples Department of Molecular and Clinical Endocrinology and Oncology Section of EndocrinologyFederico Ⅱ University Medical School of Naples

Non-alcoholic fatty liver disease (NAFLD), a further expression of metabolic syndrome, strictly linked to obesity and diabetes mellitus, is characterized by insulin resistance (IR), elevated serum levels of free fatty acids and fatty infi ltration of the liver, which is known as hepatic steatosis. Hepatocyte apoptosis is a key feature of this disease and correlates with its severity. Free-fatty-acidinduced toxicity represents one of mechanisms for the pathogenesis of NAFLD and hormones, growth factors and adipokines influence also play a key role. This review highlights the various pathways that contribute to the development of hepatic steatosis. Circulating concentrations of inflammatory cytokines are reckoned to be the most important factor in causing and maintaining IR. Low-grade chronic inflammation is fundamental in the progression of NAFLD toward higher risk cirrhotic states.

关键词： Hepatic steatosis Low-grade chronic inflammation Adipokines Hormones Growth factors

An Enzyme Electrode Based on the Covalently Binding of Horseradish Peroxidase to a Self-assembling Monolayer Modified Gold Electrode

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Chinese Chemical Letters 1998年第2期9卷 157-160页

作者： Sun, jj Xu, jj Fang, HQ Chen, HY Nanjing Univ State Key Lab Coordinat Chem Dept Chem Nanjing 210093 Peoples R China

A new procedure for developing high performance enzyme electrode is described. The procedure is based on the covalently binding of horseradish peroxidase to a self-assembling monolayer on a gold electrode. An enhanced catalytic current is observed with addition of hydrogen peroxide into phosphate buffer solution (PBS) in the presence of mediators. The electrode exhibits high sensitivity and a wide linear range to hydrogen peroxide.

关键词： high performance enzyme electrode high sensitivity wide linear range

Electrochemical reduction process of bilirubin in dimethylformamide

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Chinese Journal of Chemistry 1995年第4期13卷 289-298页

作者： NIU, jj DONG, SJ CHINESE ACAD SCI CHANGCHUN INST APPL CHEMELECTROANALYT CHEM LABCHANGCHUN 130022PEOPLES R CHINA

The electrochemical reduction behavior of bilirubin (BR) at platinum electrode in DMF was investigated by cyclic voltammetry, in situ electron spin resonance spectroscopy and in situ rapid scanning thin layer spectroelectrochemistry. Experimental results revealed that the reduction of BR firstly undergoes an ECE process: GRAPHICS The generated (BR)(2)(3-). can be re-oxidized to BR and then to purpurin (Pu) by a series of oxidation processes: GRAPHICS However, the re-reduction reactions of Pu are not the reverse processes. The different reduction mechanisms are discussed in detail.

关键词： BILIRUBIN BILIVERDIN PURPURIN SPECTROELECTROCHEMISTRY BIOELECTROCHEMISTRY

Persistent Currents in Toroidal Single-wall Carbon Nanotubes

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Journal of Materials Science & Technology 1999年第4期15卷 342-344页

作者： Liu, jj Zhang, G Gu, BL Tsing Hua Univ Dept Phys Beijing 100084 Peoples R China

In this paper the persistent currents of ideal toroidal single-wall carbon nanotubes (TSWNTs) are calculated from the tight-binding model and the periodic boundary conditions. The electronic structure and persistent current of a TSWNT strongly depend on its helicity and longitudinal circumference, making the TSWNTs a geometry-sensitive kind of materials. The interatomic carbonic interactions other than pp pi-type are also studied and are found to introduce more steps to the persistent current. The diamagnetic-paramagnetic transitions occur more frequently, and the persistent current depends on the interaction energy values, while the periodicity of magnetic flux preserves.

关键词： Nanotubes

Effects of Charge Inheritance on High Zn-Al Based Alloy

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Journal of Materials Science & Technology 1995年第2期11卷 153-156页

作者： GENG, H MA, jj YANG, SH Shandong Polytechnic Univ Jinan China

The effects of several kinds of charges on microstructure and mechanical properties of ZA27 zinc alloy have been studied. Experimental results show that a certain amount of the mechining charge, granular charge and remelting charge treated in suitable way can increase greatly the mechanical properties of ZA27 alloy. It is thought that the charges possess microstructure inheritance to ZA27 alloy, so cause the property changes according to the viewpoints of casting alloy inheritance.

关键词： Zinc alloys

Spleen:A new role ffoorr an old player?

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World Journal of Gastroenterology 2011年第33期17卷 3776-3784页

作者： Giovanni Tarantino Silvia Savastano Domenico Capone Annamaria colao Department of Clinical and Experimental Medicine Federico Ⅱ University Medical School of NaplesVia S.Pansini 580131 NaplesItaly Department of Molecular and Clinical Endocrinology and Oncology Division of EndocrinologyFederico Ⅱ University Medical School of NaplesVia S.Pansini 580131 NaplesItaly Department of Neurosciences Unit of Clinical PharmacologyFederico Ⅱ University Medical School of Naples80131 NaplesItaly

The spleen could be considered a neglected *** date,it has been deemed an ancillary organ in portal hypertension or an organ localization in lymphoproliferative diseases,even though it has had significant attention in infectious diseases for some ***,it is thought to be central in regulating the immune system,a metabolic asset and involved in endocrine function with regard to nonalcoholic fatty liver *** main mechanisms involved in this complex network will be critically discussed in this article.

关键词： Endocrine function Immune system Metabolic asset Nonalcoholic fatty liver disease Spleen

Existence of periodic solutions for Lienard equations with finite delay

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Chinese Science Bulletin 1997年第14期42卷 1145-1149页

作者： Wei, jj Huang, QC Department of Mathematics Northeast Normal University Changchun China

THE existence of periodic solutions of Lienard equation with finite delay x(t) + f(x(t))x(t) + g(x(t-r))=0 (1)has been studied extensively. However, most works we have so far require the assumption thatx·g(x)>0 for a... 详细信息

关键词： delay Lienard equations bifurcations periodic solutions.

Minerogenetic mechanism of Rushan gold deposit, Shandong Province——Evidence of ore-forming fluid and H, O, Sr isotopes

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Chinese Science Bulletin 1997年第3期42卷 240-243页

作者： Zhai, JP Hu, K Lu, jj Department of Earth Sciences Nanjing University Nanjing China

THE Rushan gold deposit, being of quartz-vein type, is located in biotite monzonitic granite of Kunyushan complex pluton in eastern Shandong, China, and the orebody No. 2 is the largest mono-vein deposits found in China. The gold mineralization can be divided into three stages according to crisscross relations of the various microlodes in the deposit: Ⅰ. pre-ore stage of comb-structured milky-white quartz veins; Ⅱ. main mineralization stage of multi-metal sulphides and siderite-quartz veins; Ⅲ. post-ore stage of mottled cryptocrystalline quartz veins.

关键词： granite quartz-vein type gold deposit ore-forming fluid origin of deposit.