28 research outputs found

    Magnetic phase diagram and transport properties of FeGe_2

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    We have used resistivity measurements to study the magnetic phase diagram of the itinerant antiferromagnet FeGe_2 in the temperature range from 0.3->300 K in magnetic fields up to 16 T. In contrast to theoretical predictions, the incommensurate spin density wave phase is found to be stable at least up to 16 T, with an estimated critical field \mu _0H_c of ~ 30 T. We have also studied the low temperature magnetoresistance in the [100], [110], and [001] directions. The transverse magnetoresistance is well described by a power law for magnetic fields above 1 T with no saturation observed at high fields. We discuss our results in terms of the magnetic structure and the calculated electronic bandstructure of FeGe_2. We have also observed, for the first time in this compound, Shubnikov-de Haas oscillations in the transverse magnetoresistance with a frequency of 190 +- 10 T for a magnetic field along [001].Comment: 13 pages, RevTeX, 7 postscript figures, to appear in Journal of Physics: Condensed Matte

    Dissipative Van der Waals interaction between a small particle and a metal surface

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    We use a general theory of the fluctuating electromagnetic field to calculate the friction force acting on a small neutral particle, e.g., a physisorbed molecule, or a nanoscale object with arbitrary dispersive and absorptive dielectric properties, moving near a metal surface. We consider the dependence of the electromagnetic friction on the temperature TT, the separation dd, and discuss the role of screening, non-local and retardation effects. We find that for high resistivity materials, the dissipative van der Waals interaction can be an important mechanism of vibrational energy relaxation of physisorbed molecules, and friction for microscopic solids. Several controversial topics related to electromagnetic dissipative shear stress is considered. The problem of local heating of the surface by an STM tip is also briefly commented on.Comment: 11 pages, No figure

    ВНУТРИПОЛОСТНАЯ ТЕРАПИЯ ОЗОНИРОВАННЫМ АНТИСЕПТИЧЕСКИМ РАСТВОРОМ В КОМПЛЕКСНОМ ЛЕЧЕНИИ ПАЦИЕНТОВ С ИНФИЦИРОВАННЫМИ ПОЛОСТНЫМИ ОБРАЗОВАНИЯМИ ПЕЧЕНИ

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    Application   in  the   treatment of  patients  with  infected  cavitary  formations  liver intracavitary therapy ozonated antiseptic allowed  significantly  speed  up the  recovery  of liver function, reduce  the  time of hospital  treatment, to accelerate the  elimination  of the abscess  cavity.Применение в лечении у пациентов с инфицированными полостными образованиями печени внутриполостной терапии озонированным антисептическим раствором позволило достоверно ускорить  восстановление функции печени,  уменьшить сроки стационарного лечения, ускорить ликвидацию полости абсцесса

    ЭТИОЛОГИЧЕСКИЕ ФАКТОРЫ РАЗВИТИЯ АБСЦЕССОВ ПЕЧЕНИ

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    Liver abscesses of various origins are the group of severe purulent diseases of the liver and it is considered one of the difficult problems of the hepatobiliary system. The article presents the current data on the causes and microbiological composition of pathogens liver abscesses.Абсцессы печени различного генеза являются группой тяжелых гнойных заболеваний печени и считаются одной из сложных проблем гепатобилиарной системы. В статье приведены современные данные о причинах развития и микробиологическом составе возбудителей абсцессов печени

    INTRACAVITARY THERAPY BY THE OZONIZED ANTISEPTIC SOLUTION IN COMPLEX TREATMENT OF PATIENTS WITH INFECTED BAND FORMATIONS OF THE LIVER

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    Application   in  the   treatment of  patients  with  infected  cavitary  formations  liver intracavitary therapy ozonated antiseptic allowed  significantly  speed  up the  recovery  of liver function, reduce  the  time of hospital  treatment, to accelerate the  elimination  of the abscess  cavity

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    CAUSES OF DEVELOPMENT LIVER ABSCESSES

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    Liver abscesses of various origins are the group of severe purulent diseases of the liver and it is considered one of the difficult problems of the hepatobiliary system. The article presents the current data on the causes and microbiological composition of pathogens liver abscesses
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