304 research outputs found

    In vitro susceptibility of 120 strains of Neisseria gonorrhoeae isolated in Kyrghyzstan.

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    BACKGROUND: The World Health Organization has established a worldwide program for gonococcal antimicrobial surveillance, but so far no data on gonococcal susceptibility in Central Asia are available. GOAL: The need for biological data on the susceptibility of Neisseria gonorrhoeae in Kyrghyzstan, to enable adaptation of the national treatment protocol for gonococcal infections, led Médecins Sans Frontières and Epicentre to conduct a survey in collaboration with the Alfred Fournier Institute in Paris and the health authorities in Bishkek. STUDY DESIGN: In vitro susceptibility of N gonorrhoeae strains was determined with use of the reference agar-plate dilution technique. RESULTS: Results for 11 antibiotics tested on 120 strains of gonococci showed a low proportion (11.7%) of penicillinase-producing N gonorrhoeae and high proportions of intermediate or resistant strains to the majority of the antibiotics tested, including fluoroquinolones (>or=25% of strains resistant). All the strains were susceptible to spectinomycin, and only two strains had decreased susceptibility to cefixime. CONCLUSION: The therapeutic choices available in Kyrghyzstan appear to be limited to cephalosporins and spectinomycin

    Metabolic cardioprotection: new concepts in implementation of cardioprotective effects of meldonium

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    Recent studies confirm the need to find means to correct ischemic / reperfusion injury due to the hemodynamic medicine, which are already known do not have the proper cardioprotective effects. Key issue is the possibility of drug effects on the mitochondria of cardiomyocytes that controls the aerobic metabolism and maintenance of ATP admission into cardiomyocyte

    Social and psychological features of inter-cultural adaptation of Russian students in different universities

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    Modern globalisation processes, the rapid entry of Russia into the world community, have given more opportunities to interact with various ethnic groups ranging from short-term tourist and business contacts to complex processes of migration and emigration. Migrants and visitors have different goals for staying in a new country, meanwhile the researchers note a lot in common within the adaptation processes of both groups. In particular, tension, stresses and experience of cultural shock during adaptation are observed. Therefore, it is necessary to conduct psychological studies not only of migrants who come for a long time to a new country, but also of visitors, i.e., interns, students who come to study in foreign universitie

    Spectral multiplicity for powers of weakly mixing automorphisms

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    We study the behavior of maximal multiplicities mm(Rn)mm (R^n) for the powers of a weakly mixing automorphism RR. For some special infinite set AA we show the existence of a weakly mixing rank-one automorphism RR such that mm(Rn)=nmm (R^n)=n and mm(Rn+1)=1mm(R^{n+1}) =1 for all n∈An\in A. Moreover, the cardinality cardm(Rn)cardm(R^n) of the set of spectral multiplicities for RnR^n is not bounded. We have cardm(Rn+1)=1cardm(R^{n+1})=1 and cardm(Rn)=2m(n)cardm(R^n)=2^{m(n)}, m(n)β†’βˆžm(n)\to\infty, n∈An\in A. We also construct another weakly mixing automorphism RR with the following properties: mm(Rn)=nmm(R^{n}) =n for n=1,2,3,...,2009,2010n=1,2,3,..., 2009, 2010 but mm(T2011)=1mm(T^{2011}) =1, all powers (Rn)(R^{n}) have homogeneous spectrum, and the set of limit points of the sequence {mm(Rn)n:n∈N}\{\frac{mm (R^n)}{n} : n\in \N \} is infinite

    Experimental approaches to the assessment of potential cardioprotective means with doxorubicin-associated cardiomyopathy

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    Development of methodological approaches for evaluation of cardioprotective activity of drugs in doxorubicin cardiomyopath

    Preparation de formamide de la benzophenone oxime et les O-derives

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    Π‘Π΅Π½Π·Π³ΠΈΠ΄Ρ€ΠΈΠ»ΠΌΠΎΡ‡Π΅Π²ΠΈΠ½Ρ‹ ΡΠ²Π»ΡΡŽΡ‚ΡΡ биологичСски Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΌΠΈ соСдинСниями, ΠΏΡ€ΠΎΡΠ²Π»ΡΡŽΡ‰ΠΈΠΌΠΈ Π²Ρ‹Ρ€Π°ΠΆΠ΅Π½Π½ΡƒΡŽ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΡΡƒΠ΄ΠΎΡ€ΠΎΠΆΠ½ΡƒΡŽ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ, Π° субстраты Π² синтСзС Π±Π΅Π½Π·Π³ΠΈΠ΄Ρ€ΠΈΠ»ΠΌΠΎΡ‡Π΅Π²ΠΈΠ½ -Π±Π΅Π½Π·Π³ΠΈΠ΄Ρ€ΠΈΠ»Π°ΠΌΠΈΠ½Ρ‹. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ Ρ†Π΅Π»ΡŒΡŽ нашСй Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π±Ρ‹Π»Π° Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΡƒΠ΄ΠΎΠ±Π½ΠΎΠ³ΠΎ ΠΈ экономичСски Π²Ρ‹Π³ΠΎΠ΄Π½ΠΎΠ³ΠΎ способа получСния Π±Π΅Π½Π·Π³ΠΈΠ΄Ρ€ΠΈΠ»Π°ΠΌΠΈΠ½ΠΎΠ².ΠŸΠ΅Ρ€Π²Ρ‹ΠΌ этапом Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π±Ρ‹Π»ΠΎ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ΠΈΠ΅ оксимабСнзофСнона, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ Π² дальнСйшСм восстанавливался Π΄ΠΎ Π±Π΅Π½Π·Π³ΠΈΠ΄Ρ€ΠΈΠ»Π°ΠΌΠΈΠ½Π°. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ,Π½Π°ΠΌΠΈ Π±Ρ‹Π» Π½Π°ΠΉΠ΄Π΅Π½ эффСктивный ΠΌΠ΅Ρ‚ΠΎΠ΄ восстановлСния оксимабСнзофСнона ΠΈ Π΅Π³ΠΎ О-ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄Π½Ρ‹Ρ… Π΄ΠΎ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰Π΅Π³ΠΎ Ρ„ΠΎΡ€ΠΌΠ°ΠΌΠΈΠ΄Π°., ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ, ΠΊΠ°ΠΊ извСстно ΠΏΡ€ΠΈ Π³ΠΈΠ΄Ρ€ΠΎΠ»ΠΈΠ·Π΅ ΠΎΠ±Ρ€Π°Π·ΡƒΠ΅Ρ‚ Π±Π΅Π½Π·Π³ΠΈΠ΄Ρ€ΠΈΠ»Π°ΠΌΠΈΠ½

    Physical properties of thermoelectric zinc antimonide using first-principles calculations

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    We report first principles calculations of the structural, electronic, elastic and vibrational properties of the semiconducting orthorhombic ZnSb compound. We study also the intrinsic point defects in order to eventually improve the thermoelectric properties of this already very promising thermoelectric material. Concerning the electronic properties, in addition to the band structure, we show that the Zn (Sb) crystallographically equivalent atoms are not exactly equivalent from the electronic point of view. Lattice dynamics, elastic and thermodynamic properties are found to be in good agreement with experiments and they confirm the non equivalency of the zinc and antimony atoms from the vibrational point of view. The calculated elastic properties show a relatively weak anisotropy and the hardest direction is the y direction. We observe the presence of low energy modes involving both Zn and Sb atoms at about 5-6 meV, similarly to what has been found in Zn4Sb3 and we suggest that the interactions of these modes with acoustic phonons could explain the relatively low thermal conductivity of ZnSb. Zinc vacancies are the most stable defects and this explains the intrinsic p-type conductivity of ZnSb.Comment: 33 pages, 8 figure

    Effect of multipotent mesenchymal stromal cells secretome on imiquimod-induced psoriasis in rats

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    Multipotent mesenchymal stromal cells secretome contains a range of anti-inflammatory factors and can be used for the treatment of psoriasi
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