检索结果-南通市图书馆

Effect of Metabolites of Fusarium Solani on Tyrosine Phosphorylation in Cultivated Cells of Solarium Tuberosum

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Life Sciences 2011年第10期5卷 826-830页

作者： Alija Manadilova natalya Petrova Fatima Karimova Aizhan Utarbayeva M.A. Aitkhozhin Institute of Molecular Biology and Biochemistry Almaty 050012 Kazakhstan Kazan Institute of Biochemistry and Biophysics Kazan Scientific Center Russian Academy of Science Kazan 420111 Russia

Elicitor-induced phosphorylation of tyrosine residues in proteins of potato was studied. Proteins of crude extract of suspension culture of potato were analyzed by one- and two-dimensional electrophoresis followed by Western blotting with monoclonal antibodies PY20 to phosphotyrosine proteins. One- and two-dimensional electrophoresis revealed l l and 25 tyrosine-phosphorylated proteins, respectively. Glycoprotein increased the phosphorylation level of most of these proteins.

关键词： Potato Fusarium solani 2D-electrophoresis protein phosphorylation on tyrosine glycoprotein.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

东方大黄蜂的表皮异源移植试验(英文)

动物学报 2005年第6期51卷 1146-1150页

作者： natalya Y. ERMAKOV Jacob S. ISHAY Department of Physiology and Pharmacology Sackler Faculty of Medicine Tel-Aviv University Ramat-Aviv 69978 Israel

将东方大黄蜂(胡蜂)蛹或幼蜂的棕色表皮层连同含有黑色素的皮细胞层、黄色表皮层及相连的产生黄嘌呤的皮细胞层割下,换位后植入原来的黄蜂体上(原来是黄色的部分用棕色替代,棕色的用黄色替代)。然后将蛹放回原来的子脾中,幼蜂放入一特... 详细信息

将东方大黄蜂(胡蜂)蛹或幼蜂的棕色表皮层连同含有黑色素的皮细胞层、黄色表皮层及相连的产生黄嘌呤的皮细胞层割下,换位后植入原来的黄蜂体上(原来是黄色的部分用棕色替代,棕色的用黄色替代)。然后将蛹放回原来的子脾中,幼蜂放入一特殊的培养皿中,让其复原和发育。共对200个不同时期的蛹和50只幼蜂进行了试验。结果显示,存活的最主要是将羽化的蛹(差1-2天就羽化的蛹),早期的蛹和幼蜂均死亡。总共有约5%的蛹存活,幼蛹无一存活。在存活的蛹中,棕色表皮植入黄色区域中的不但成活了,而且还保留了棕色色彩。相反,黄色表皮在植入到棕色区域的几天后,就丢失了黄色及膜片。经过表皮异源移植的大黄蜂寿命极短,一般仅几星期。羽化后较敏感,攻击性强,但行走、飞行都很正常。

关键词：社会性胡蜂昆虫异源移植黄色和棕色表皮层昆虫色素手术过程

Lake Shira Level Changes in Late Holocene

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2014年第S1期88卷 3-4页

作者： Anrey DARIN Ivan KALUGIN natalya MAKSIMOVA Tatiana MARKOVICHv Yakov RAKSHUN Dmitryi SOROKOLETOV Fedor DARIN Denis RAGOZIN Institute of Geology and Mineralogy SB RAS Institute of Nuclear Physics SB RAS Institute of Biophysics SB RAS

1 Introduction Meromictic Shira Lake is a good represfor detail climate modeling due to its locainformation and annually laminated bottomsediment column of 155 cm in length wahammer corer in the deepest(24 m)central i... 详细信息

关键词： Lake Shira varve synchrotron radiation scanning X_ray fluorescence microanalysis.

Silica inflammation modulates lipoperoxide and thi-obarbituric acid reactive substances levels in liver and glucose concentration in blood of alloxan diabetic rats

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Modern Research in Inflammation 2012年第2期1卷 19-25页

作者： Vyacheslav A. Shkurupiy natalya A. Palchikova Vera G. Selyatitskaya Olga P. Makarova natalya V. Kuznetsova Olga I. Kuzminova Siberian Branch of Russian Academy Medical Sciences Scientific Centre of Clinical and Experimental Medicine Novosibirsk Russia

Inflammatory granulomatous diseases are cha- racterized by a high concentration of granu- lomas in tissue interstitium in which phagocytic cells that produce active oxygen and nitrogen metabolites are accumulated. Because of their high reactivity, free radicals react with unsatu- rated fatty acids that are components of mem- brane phospholipids, activate lipid peroxidation processes (LPP), the products of which have a cytotoxic effect. The role of free radicals in the pathogenesis of diabetes and its complications has been proved. The purpose of the present work was to investigate the activity of lipid peroxidation processes in the liver of rats with silica-induced granulomatous inflammation, allo- xan diabetes and their combination. The expe- riment involved male albino rats divided into four main groups. The first group were rats with silica granulomatous inflammation (SL rats);the second group were alloxan diabetic rats (DB rats);and the third group were alloxan diabetic rats, in which silica granulomatous inflammation was induced 8 days after the disease onset (DB_SL rats), the fourth group were rats that were injected saline physiological solution into the tail vein (control rats). Rats were withdrawn from the experiment within different time pe- riods after the induction of pathological pro- cesses. LPP activity in liver homogenates was determined by the relative concentration of lipo- peroxides in the heptane-isopropanol system and the concentration of products of the reac- tion with 2-thiobarbituric acid-reactive substan- ces (TBARS). The severity of carbohydrate meta- bolism disorders was evaluated through the measurement of the blood level of glucose, daily urine volume and the relative weight of the kindneys. We found that silica administration activated LPP in the liver of SL rats;we ob- served the accumulation of primary products on day 1 after administration and later that of TBA- RS followed by normalization of their concen- tration by day 21 of the e

关键词： Silica Granulomatous Inflammation Alloxan Diabetic Rats Liver Lipid Peroxidation Blood Glucose

Anti-Aging Effect of <i>Cynara cardunculus</i>L. var. <i>Cynara scolymus</i>L. Extract in D-Galactose-Induced Skin Aging Model in Rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pharmacology & Pharmacy 2018年第10期9卷 428-439页

作者： Galina Sukoyan Edisher Tsivtsivadze Veronika Golovach Tamara Kezeli natalya Demina International Center of Introduction of New Biomedical Technology Tbilisi Georgia Department of Pharmacology Ivane Javakhishvili Tbilisi State University Tbilisi Georgia Department of Pharmacy Technology of Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov of the Ministry of Health of the Russian Federation (Sechenov University) Moscow Russia

The aim of the study was to evaluate the efficacy of 2% Cynara scolymus L. extracts in reverse disturbances of collagen metabolism and inflammation in D-galactose induced skin aging model in rats. D-galactose induced aging reproduced in 48 animals of main group, and 12 rats in control group. All animals in main group were randomized for 4 groups: I. aging + saline, II - IV. different manufacturers 2% artichoke extracts (with content of chlorogenic acid 2.5%) in a dose of intradermal injection 0.13 mg twice at weeks during 4 weeks. Influence of artichoke extracts restored skin relative weight and led to an increase of solubility in neutral salt and acid, and decreased pepsin solubility collagen fraction, restored the hexosamine/collagen (hydroxyproline) ratio and decreased the activity of nuclear transcription factor (NF-kB). Local prolonged treatment with artichoke extracts improved collagen metabolism and attenuated the progression of inflammation in D-galactose induced skin aging model.

关键词： Skin Aging Collagen Pure Water Cynara cardunculus L. var. Cynara scolymus L. Extract Nuclear Transcription Factor Kappa B

The reaction of the iron thiosulfate-nitrosyl complex with adenosine triphosphoric acid

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2013年第7期5卷 800-810页

作者： Elena A. Saratovskikh Boris L. Psikha natalya A. Sanina Institute of Problems of Chemical Physics Russian Academy of Sciences Chernogolovka Russia

Iron tetranitrosyl complex bearing the thiosulfate ligand (TNIC) is an efficient nitrogen monoxide donor (NO). He shows antitumor properties and may be used as an original drug for the therapy of acute coronary syndrome. In this work, the reaction of the TNIC with adenosine triphosphoric acid (ATP) was studied. Formation of the products for the reaction of ATP with TNIC was shown by electronic microscopy. The kinetics of the reaction was controlled by spectrofluorometric method, and the complexation constant was measured. The mechanism of interaction of ATP with TNIC was proposed, and the relevant kinetic model satisfactorily described the experimental data, which permitted to calculate the rate constants for these process stages. NMR, IR, and M?ssbauer studies were used for determination of the reaction product structure. NMR study showed TNIC interaction only with adenine part of ATP. The method of IR spectroscopy identified both the absence NO in the reaction products and the occurrence of new Fe-S and Fe-N bonds. M?ssbauer study showed that iron in the reaction products was presented by two forms: Fe(II) and Fe(III). Thus, the structures for the [ATP-Fe2+S] and [ATP-Fe3+S] complexes were proposed.

关键词： Adenosine Triphosphoric Acid Thiosulfate-Nitrosyl Iron Complex Nitrogen Monoxide Donors Fluorescence Kinetic model Reaction Rate Constants Iron(II) Complexes Iron(III) Complexes

Graphene-Polymer Nanocomposites and Roll-to-Roll (R2R) Compatible Flexible Solid-State Supercapacitor Based on Graphene Nanoplatelets and Ionic Liquid-Polymer Gel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Graphene 2022年第1期11卷 1-18页

作者： Jasper Chiguma Eliud Mushibe natalya Gonopolskaya Wayne E. Jones Jr Department of Chemistry and Materials Science and Engineering Binghamton University Binghamton NY USA

We present the electrical and supercapacitive performance of graphene nanoplatelets in polymer nanocomposites and flexible solid state electrical double layer capacitors (EDLC) respectively. Graphene-doped poly (3,4-ethylenedioxythiophene) (PEDOT) coated polyethylene terephthalate (PET) and glass exhibited transmittance above 95% and electrical conductivity of 2.70 × 10ˉ1 S·cmˉ1 and 9.01 × 10ˉ1 S·cmˉ1 respectively. Graphene loaded polymethyl methacrylate (PMMA) and polystyrene (PS) nanocomposites showed electrical conductivity as high as 2.11 × 10

The Impact of Aluminum- and Iron-Bearing Admixtures on the Resistance of Portland Cement Mortars to Alkali-Silica Reaction and Sulfate Attack

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2015年第6期6卷 539-548页

作者： Alexey Brykov Anna Anisimova natalya Rozenkova Mohammed Hadi Maxim Mokeev Department of Chemistry of Substances and Materials Saint-Petersburg State Institute of Technology St. Petersburg Russia Thi-Qar University Nasiriyah Iraq Institute of Macromolecular Compounds St. Petersburg Russia

Study of sulfate resistance of mortars with aluminum- and iron-bearing admixtures (Al(OH)3, Al2(SO4)3, FeSO4, Fe2(SO4)3) in conditions close to those established in ASTM C 1012, and the study of the mitigation effect of these admixtures on alkali-silica reaction in accordance with accelerated “mortar bar” test ( GOST 8269.0, ASTM C 1260) were performed. Iron (II) and (III) sulfates show ability for mitigation alkali-silica reaction, while also, in contrast with Al-bearing substances, do not induce the drastic reducing of the initial setting time and do not promote the progress of sulfate corrosion. Compared with FeSO4, iron (III) sulfate has moderate deleterious impact on the early strength of cement paste and can be of interest alone as an inhibitor of ASR. Iron (II) sulfate may be used together with aluminum sulfate to offset the accelerating effect of the latter on the setting of cement paste and to reduce a risk of sulfate corrosion. During prolonged water storage, the mortar elongation and secondary ettringite formation do not occur, even when Al2(SO4)3 is available. Therefore, the investigated admixtures cannot act as agents of internal sulfate attack, however, Al2(SO4)3 can enhance the outer sulfate attack.

关键词： Alkali-Silica Reaction Sulfate Attack Mitigation Aluminum Sulfate Iron Sulfate Portland Cement

International Practice of Fast-Growing Innovative Companies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Business Review 2017年第10期16卷 496-503页

作者： Marina Yudenko Nadezhda Polovnikova natalya Chikisheva Natalia Meller Irina Kuzovleva Petersburg State Transport University Emperor Alexander I St. Petersburg Russia Natalya Chikisheva Natalia Meller Tyumen Industrial University Tyumen Russia Bryansk State Engineering-Technological University Bryansk Russia

The purpose of the article is to compare the conditions of development and support of fast-growing companies in European countries, Asian countries, and Russia. The comparative analysis performed is of interest as certain countries, including Russia, face the problem of economic slowdown. However, the fast-growing companies are powerful catalysts for the growth of the gross domestic product and the employment of the population. The conclusion of the study is that there are common patterns in ongoing support programs for fast-growing companies： long term, state support, innovative company orientation, and concessional financing. At the same time, there are fundamental differences in approaches to the state support for innovative companies. The first approach relates to the natural development of the fast-growing innovation companies and their support programs （Germany, Denmark）; the second approach is aimed at artificially stimulating the growth of such companies （South Korea）. In Russia there are institutional features of supporting fast-growing companies： small businesses are the most vulnerable part of the economic system and they require state support in crisis situations. Therefore, the experience of European and Asian countries in terms of supporting innovative and fast-growing companies can have a positive impact on the development of innovative companies in Russia. And definitely it is important to try to understand the nature of Russian innovative fast-growing companies： do we see them as entrepreneurial business as we do in the Western companies？

关键词： fast-growing companies support program small businesses administrative barriers Russia gazelle