D0 Dimuon Asymmetry in Bs−BˉsB_s - \bar B_s Mixing and Constraints on New Physics

We study the consequences of the large dimuon asymmetry observed at D0. Physics beyond the standard model (SM) in $B_s-\bar B_s$ mixing is required to explain the data. We first present a detailed analysis for model independent constraints on physics beyond the SM, and then study the implications for theoretical models which modify the SM results in different ways, such as $Z'$ with FCNC and R-parity violating SUSY contributions.Comment: RevTex 13 pages, 6 figures. References added. Modified some discussions. Version to appear in PR

Rules for investigation of patients with asymptomatic elevation of serum aminotransferase activity

Publication is intended for clinicians dealing with patients who have abnormal blood biochemical tests. Nowadays investigation of blood biochemistry scores, which reflect functional state of body organs and systems, deeply settled in medical practice. Correct understanding of these results helps to diagnose, stage the disease, prescribe treatment and control its efficacy. Features of differential diagnosis and medical approach in patients without any clinical symptoms is actual and common issue faced by many general practitioners every day. As a rule, elevation of activity of alanine and-or aspartate aminotransferases (ALT, AST) is considered as highly significant marker of hepatocyte damage. However, it is necessary to remember, that far from all patients with raised level of aminotransferases have serious liver diseases. More often doctor should interpret elevation of level of ALT and-or AST in patients with obesity, diabetes mellitus, disorder of lipid metabolism or in the case of absence of clinical symptoms of any disease. In presented article issues of patient management with asymptomatic elevation of ALT and AST activity are covered both general-theoretical, and practical points of view. Screening markers and specifying diagnostic tests are necessary to diagnose correct the majority of liver diseases – viral hepatites, alcoholic (ALD) and non-alcoholic fatty liver diseases (NAFLD), autoimmune hepatitis (AIH), Wilson diseases, primary hemochromatosis etc. States at which in absence of primary liver disease levels of ALT and AST can raise are described

Decay of the turbulent cascade of capillary waves on the charged surface of liquid hyrdrogen.

We study the free decay of capillary turbulence on the charged surface of liquid hydrogen. We find that the decay begins from the high frequency spectral domains of the surface oscillations and is of a quasi-adiabatic character. The characteristic relaxation time of the whole turbulent cascade is close to the viscous damping time for capillary waves of frequency equal to the driving frequency

High-efficiency freezing-induced loading of inorganic nanoparticles and proteins into micron- and submicron-sized porous particles

We demonstrate a novel approach to the controlled loading of inorganic nanoparticles and proteins into submicron- and micron-sized porous particles. The approach is based on freezing/thawing cycles, which lead to high loading densities. The process was tested for the inclusion of Au, magnetite nanoparticles, and bovine serum albumin in biocompatible vaterite carriers of micron and submicron sizes. The amounts of loaded nanoparticles or substances were adjusted by the number of freezing/thawing cycles. Our method afforded at least a three times higher loading of magnetite nanoparticles and a four times higher loading of protein for micron vaterite particles, in comparison with conventional methods such as adsorption and coprecipitation. The capsules loaded with magnetite nanoparticles by the freezing-induced loading method moved faster in a magnetic field gradient than did the capsules loaded by adsorption or coprecipitation. Our approach allows the preparation of multicomponent nanocomposite materials with designed properties such as remote control (e.g. via the application of an electromagnetic or acoustic field) and cargo unloading. Such materials could be used as multimodal contrast agents, drug delivery systems, and sensors

Europium doping of zincblende GaN by ion implantation

Eu was implanted into high quality cubic (zincblende) GaN (ZB-GaN) layers grown by molecular beam epitaxy. Detailed structural characterization before and after implantation was performed by x-ray diffraction (XRD) and Rutherford backscattering/channeling spectrometry. A low concentration ( direction, while a Ga substitutional site is observed for W-GaN:Eu. The implantation damage in ZB-GaN:Eu could partly be removed by thermal annealing, but an increase in the wurtzite phase fraction was observed at the same time. Cathodoluminescence, photoluminescence (PL), and PL excitation spectroscopy revealed several emission lines which can be attributed to distinct Eu-related optical centers in ZB-GaN and W-GaN inclusions

Adiabatic inspirals under electromagnetic radiation reaction on Kerr spacetime

A compact body in orbit about a black hole loses orbital energy and angular momentum through radiation-reaction processes, inspiralling toward the black hole until a final plunge. Here we consider a scenario with a charged compact body in which fluxes of electromagnetic radiation drive this inspiral. We calculate trajectories in the (p,e) plane for inspirals in the equatorial plane of a rotating black hole within the adiabatic (orbital-averaged-dissipative) approximation. We make comparisons with a nonrelativistic Keplerian approximation based on the Abraham-Lorentz force law, and with standard gravitational-wave driven scenarios. We find that EM-driven inspirals are less efficiently circularized (i.e. orbits remain more eccentric at the point of plunge) than their gravitational counterparts, and we quantify the effect of black hole spin

Fermion Helicity Flip Induced by Torsion Field

We show that in theories of gravitation with torsion the helicity of fermion particles is not conserved and we calculate the probability of spin flip, which is related to the anti-symmetric part of affine connection. Some cosmological consequences are discussed.Comment: 6 pages, to appear in Europhysics Letter

ИСПОЛЬЗОВАНИЕ ПРОГРАММНО-АППАРАТНОГО КОМПЛЕКСА ДЛЯ МОНИТОРИНГА СОСТОЯНИЯ РАБОТНИКОВ АТОМНОЙ СТАНЦИИ

The results of the development of software and hardware and monitoring of the functional state of workers of nuclear stations are given. It is shown that early detection of adverse psycho-physiological states using software and hardware complex at the nuclear power plant workers in a timely manner for both psychological and pharmacological correction, aimed at improving the efficiency of tasks in the conditions of aggressive professional environment .Приведены результаты разработки программно-аппаратного комплекса и мониторинг функционального состояния работников атомных станций. Показано, что раннее выявление неблагоприятных психофизиологических состояний с помощью программно-аппаратного комплекса у работников АЭС необходимо для своевременной как психологической, так и фармакологической коррекции, направленной на повышение эффективности выполнения поставленных задач в условиях агрессивной профессиональной среды

Enabling magnetic resonance imaging of hollow-core microstructured optical fibers via nanocomposite coating

Optical fibers are widely used in bioimaging systems as flexible endoscopes capable of low-invasive penetration inside hollow tissue cavities. Here, we report on the technique which allows magnetic resonance imaging (MRI) of hollow-core microstructured fibers (HC-MFs), paving the way for combing MRI and optical bioimaging. Our approach is based on Layer-by-Layer assembly of oppositely charged polyelectrolytes and magnetite nanoparticles on the inner core surface of HC-MFs. Incorporation of magnetite nanoparticles into polyelectrolyte layers renders HC-MFs visible for MRI and induces the red-shift in their transmission spectra. Specifically, the transmission shifts up to 60 nm have been revealed for the several-layers composite coating along with the high-quality contrast of HC-MFs in MRI scans. Our results shed light on marrying fiber-based endoscopy with MRI that opens novel possibilities for minimally invasive clinical diagnostics and surgical procedures in vivo.Comment: 11 pages, 6 figure

МНОГОМЕРНЫЙ НЕЧЕТКИЙ РАСПОЗНАВАТЕЛЬ НА ОСНОВЕ ЧЕТКОГО РАСПОЗНАВАТЕЛЯ И ЕГО ОЦЕНКА

A resolver model that produces resolver and creates opportunities advantages over methods such Mamdani, which has the disadvantage that any object is classified as a clear, even if it belongs to a corresponding cluster is questionable is described. Improvement of the model recognizer with a focus on the issue of fuzzy measure values accessories when needed, it is shown in this paper is grounded.Описан способ усовершенствования модели многомерного нечеткого распознавателя, позволяющий исключить основной недостаток, присущий модели, реализуемой на основе методов типа Мамдани