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etiology of invasive candidosis agents in Russia： a multicenter epidemiological survey

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Frontiers of Medicine 2018年第1期12卷 84-91页

作者： n.V. Vasilyeva e.R. Raush M.V. Rudneva T.S. Bogomolova A.e. Taraskina Yong Fang Fengmin Zhang n.n. Klimko Department of Medical Microbiology North-Western State Medical University named after L I. Mechnikov St. Petersburg 194291 Russia Kashkin Research Institute of Medical Mycology North-Western State Medical University named after 1.1. Mechnikov St. Petersburg 194291 Russia Sino-Russia Institute of Infection and Immunity Department of Microbiology Harbin Medical University Harbin 150086 China Department of Clinical Mycology Allergy and Immunology North-Western State Medical University named after I.I. Mechnikov St. Petersburg 194291 Russia

A multicenter prospective epidemiological survey on the etiologic agents of invasive candidosis was conducted in Russia in the period of 2012-2014. Samples were collected from 284 patients with invasive candidosis and Candida species isolated by culture. The species were identified by DnA sequencing and MALDI-TOF mass- spectrometry. A total of 322 isolates were recovered, in which 96% of Candida species belonged to six major species, namely, C. albicans （43.2%）, C. parapsilosis （20.2%）, C. glabrata （11.5%）, C. tropicalis （9.6%）, C. krusei （6.2%）, and C. guilliermondii （5.3%）. Most Candida species were isolated from blood samples （83.23%）. notably, the prevalence rate of C. albicans reduced from 52.38% to 32.79% （2012 vs. 2014）（P = 0.01） whereas that of non-C. albicans increased from 47.62% （2012） to 67.21% （2014）（P〈 0.01）. Species distribution differed among geographical regions; specifically, the prevalence rate of C. albicans as an etiologic agent of invasive candidosis in Siberian Federal region was significantly higher than that in other Federal regions. Results indicated a shift from C. albicans to non-C, albicans. Therefore, a detailed investigation on the contributing factors and appropriate treatment of invasive candidosis is needed.

关键词： prevalence Candida species invasive candidosis nosocomial etiology MALDI-TOF mass-spectrometry candidemia

Green ionic metal-organic frameworks as nanocatalysts for CO_(2)fixation

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nano Research 2025年第1期18卷 260-269页

作者： nuria Martín Miguel Maireles-Porcar Julián Sánchez Velandia Belén Altava Francisco G.Cirujano eduardo García-Verdugo Departamento de Química Inorgánica y Orgánica Universidad Jaume IAv.Sos Baynats/nCastellóde la PlanaCastellón 12071Spain

Co,ni,and Zn iso-reticular coordination polymers of 2,5-dihydroxyterphthalic acid(H_(2)dot)can be rapidly obtained under room temperature and aqueous conditions using either sodium or ammonium hydroxide as the bases to deprotonate the *** use of metal bromides and tetrabutylammonium hydroxide(TBAOH)as the base allows the green synthesis of ionic metal-organic frameworks(MOFs),characterized by X-ray diffraction(XRD),Fourier transform infrared(FTIR),scanning electron microscopy(SeM),thermo gravimetric analysis(TGA),H-nuclear magnetic resonance(nMR),elemental analysis,and X-ray photoelectron spectroscopy(XPS),and employed in the pressure,solvent,and additive-free CO_(2)fixation to epoxides by its cycloaddition to epichlorohydrin,exhibiting a cooperative behavior between the MOF and the ionic liquid formed within the framework,achieving TOns of the confined tetrabutylammonium bromide(TBABr)up to 700.

关键词： metal-organic frameworks(MOFs) ionic liquids heterogeneous catalysis CO_(2)conversion

efficient robust supervisors for discrete event systems

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Science in China(Series F) 2009年第7期52卷 1075-1083页

作者： eCOnOMACOS Christoforos e. KOUMBOULIS Fotis n. Department of Automation Halkis Institute of Technology

This paper is a sequel to a previous publication by the same authors, in which an efficient modular solution to a robust supervisory control problem for discrete event systems modeled by finite automata with prefix-closed specification languages has been presented. This solution is based on a general recursive robust control scheme, which has been successfully applied to a number of problems. The additional contributions of the present paper are：（a） a slight generalization of the problem assumptions; （b） an alternative derivation of some of the results and an alternative formulation of the controller; （c） a detailed description of a very efficient on-line implementation algorithm; and （d） an illustrative practical example.

关键词： robust supervisory control uncertain discrete event systems modular supervisory control on-line supervisory controller

Trace element geochemistry and tectonic characterization of the granulite facies rocks from Southwest Obudu Plateau,southeastern nigeria

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Chinese Journal Of Geochemistry 2009年第3期28卷 248-257页

作者： ekere e. Ukwang Barth n. ekwueme Department of Geology P.M.B. 1115CalabarNigeria

The trace elements characteristics of the migmatitic gneisses (biotite-garnetand hornblende-biotite), granulite facies rocks (charnockitic gneisses) and meta-peridotite in the area of Southwest Obudu Plateau indicate that the area exhibits a high degree of geochemical variability. Compatible trace elements (ni and Cr) are comparatively high in the granulite facies rocks and meta-peridotite. ni ranges from 28×10-6 to 266×10-6 whilst Cr ranges from 62×10-6 to 481×10-6 for the granulite facies rocks (charnockitic gneisses), and for the meta-peridotite ni varies between 2045×10-6 and 2060×10-6. Incompatible trace elements show a higher variability in these rocks. The rocks in the area of Southwest Obudu Plateau generally are characterized by the high concentrations of Ba, Ce, Sr, Rb, Ga, ni, Cr, Co, Zr, Pr and moderate concentrations of Cu, Sm and Th. The available data show that the charnockitic gneisses are of lower crustal origin. The enrichment of the meta-peridotite in compatible trace elements suggests the primitive mantle would be the source region, with slight contamination during ascent. These diverse origins collaborate the tectonic setting of the area as shown by discrimination diagrams. The diverse tectonic settings range from arc to collisional. Alkaline to sub-alkaline magmatism in the area was probably contemporaneous with the tectonic events that occurred in the area during the Proterozoic.

关键词：元素地球化学麻粒岩相高原地区岩石西南尼日利亚构造特征东南部

Application of thermally stimulated acoustic emission method to assess the thermal resistance and related properties of coals

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International Journal of Mining Science and Technology 2018年第2期28卷 243-249页

作者： e.A.novikov R.O.Oshkin V.L.Shkuratnik S.A.epshtein n.n.Dobryakova national University of Science and Technology(MISiS) Moscow 119049Russia

Traditional methods of coal thermal resistance characterization are informative but considerably timeconsuming and require utilization of a complex and expensive equipment. This limits the effectiveness of their application. In this paper, authors experimentally investigated potential application of thermally stimulated acoustic emission method for developing of relatively simple and rapid coals thermal resistance assessment method. Features of thermally stimulated acoustic emission of anthracite, lignites and bituminous coal samples subject to cyclic thermal loading have been experimentally *** the first time, it has been shown that there exists a relationship of such patterns with structural parameters and properties of the coal samples, as well as their thermal resistance. The results indicate the possibility of applying the method of thermally stimulated acoustic emission to control processes of cryogenic disintegration and thermal resistance of fossil coals. The description of the equipment and methodological support needed for the implementation of this method have been provided.

关键词： Acoustic emission Fossil coal Thermal resistance Cryogenic disintegration Structure Properties

Microstructural evolution during semisolid state strain induced melt activation process of aluminum 7075 alloy

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Transactions of nonferrous Metals Society of China 2010年第9期20卷 1663-1671页

作者： A．BOLOURI M．SHAHMIRI e．n．H．CHeSHMeH Department of Mechanical engineering Eastern Mediterranean University Mersin 10 Turkey School of Material engineering and Metallurgy Iran University of Science and Technology Tehran 16844 Iran

The effects of compression ratio on the microstructure evolution of semisolid 7075 Al alloy produced by the strain induced melt activation （SIMA） process were investigated. The samples were cold deformed by compression into the different heights up to 40% reduction. The isothermal holding treatments were carried out at 625 ℃ for predetermined time intervals. The results reveal that the average grain size is gradually reduced with the increase of the compression ratio. When the compression ratio surpasses 30%, the above descending trend is not as evident as that below 30% reduction. During the subsequent heat treatments, the recrystallization is induced in the deformed samples by the increasingly accumulated strain energy. The grain growth mechanisms and the microstructural coarsening of the SIMA processed 7075 Al alloy were discussed and confirmed.

关键词： thixoforming thermomechanical processing aluminium alloys semi-solid metal

Structure and magnetic properties of YCo5 compound at high pressures

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Journal of Materials Science & Technology 2020年第7期42卷 106-112页

作者： e.Burzo P.Vlaic D.P.Kozlenko n.O.Golosova S.e.Kichanov B.n.Savenko A.Ostlin L.Chioncel Faculty of Physics Babes-Bolyai University 40084 Cluj-NapocaRomania Romanian Academy of Science Cluj-Napoca BranchCluj-Napoca 400015Romania University of Medicine and Pharmacy“Iuliu Hatieganu” Physics and Biophysics Department Cluj-NapocaRomania Frank Laboratory of neutron Physics Joint Institute for Nuclear Research141980 DubnaRussia Theoretical Physics III Center for Electronic Correlations and MagnetismInstitute of PhysicsUniversity of AugsburgD-86135 AugsburgGermany Augsburg Center for Innovative Technologies(ACIT) D-86135 AugsburgGermany

The crystal structure and magnetic properties of YCo5 compound have been studied by neutron diffraction,in the pressure range 0≤p≤7.2 *** cobalt moments decrease with pressure,parallelly with anisotropic changes of lattice *** experimental data are analyzed together with results from the combined Density Functional and Dynamical Mean-Field Theory.A rather good agreement between the experimentally determined and calculated values of cobalt moments is *** scenario for the behavior of YCo5 under pressure,is the combined action of the Lifshitz transition with a strong local electron-electron interaction.

关键词： Internetallic compound Pressure study Magnetic properties Band structure

electrochemical and Mass Loss Investigations of new Schiff Base as Corrosion Inhibitor for Mild Steel

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Journal of Iron and Steel Research International 2014年第1期21卷 121-124页

作者： M.Behpour n.Mohammadi e.Alian Department of Analytical Chemistry Faculty of ChemistryUniversity of Kashan

Corrosion inhibition effect of a new compound on mild steel in 6 mol/L HC1 medium was investigated by electrochemical impedance spectroscopy, Tafel polarization and mass loss methods. The results of mass loss and electrochemical methods indicated inhibition efficiency increase with increasing in inhibitor concentration. Polarization investigation revealed that inhibitor is mixed type inhibitor. The results of nyquist plots were analyzed through ap- propriate equivalent circuit model. The thermodynamic parameters showed chemisorption-physisorption of inhibitor on mild steel surface in acid media.

关键词： mild steel impedance spectroscopy polarization corrosion mass loss

effect of age on quality of fresh and frozen-thawed semenin White Italian ganders

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Asian Journal of Andrology 2003年第2期5卷 89-93页

作者： e.Lukaszewicz W.Kruszynski n.Fujihara Department of Poultry Breeding Department of Genetics and Animal Breeding Agricultural University of Wroclaw 51-630 Wroclaw PolandFukuoka Women's Junior College 6-16-4 Wakagidai Fukuma Fukuoka 811-3221 Japan

Aim: To comparatively evaluate the fresh semen quality of 1, 2 and 3-yr-old White Italian ganders (Anser anser L.) and the susceptibility of spermatozoa to freezing-thawing procedure. Methods: Semen was collected by dorso-abdominal massage every 2 days^3 days from three groups of ganders: 1-yr-old (n=11), 2-yr-old (n=7) and 3-yr-old (n=9). In the pooled fresh semen samples, the following parameters were evaluated: the ejaculate volume, the blood or fecal contamination and the motility, concentration and morphology of spermatozoa. Sperm motility and morphology were evaluated in the frozen-thawed semen. Semen diluted with eK extender was frozen in straws in a computerized freezing unit with 6 % dimethyl-formamide to -140 癈 at a rate 60 癈/min and then transferred into the Ln2 container. Straws with semen were thawed in a water bath at 60 癈. Results: The ejaculate volume decreased with the age (0.21 mL for 1-yr-old, 0.18 mL for 2-yr-old and 0.14 mL for 3-yr-old ganders); the sperm concentration increased with the age (327xl06mL-1 for 1-yr-old, 431xl06mL-1 for 2-yr-old and 547xl06mL-1 for 3-yr-old ganders); the number of live - normal sperm was significantly (Per in the 1-yr-old than that in the 2- and 3-yr-old ganders (26.61 %, 41.54 %and 35.9 %, respectively). The percentage of normal cells survived the freezing-thawing process was 37.7 %, 43.3 % and 40.9 % for 1-, 2- and 3-yr-old ganders, respectively. Conclusion: Freezing and thawing processes more significantly (Pected the motility, viability and morphology of spermatozoa in semen of 1-yr-old ganders in comparison with older males.

关键词： poultry gander age semen sperm morphology freezing