Møller (iron foils) existing techniques

In Møller polarimetry for solid targets (iron or supermendure), there are only two different techniques of electron target polarization. The first one is a “classic” technique of the Møller target polarization in a foil plane. The second one is the so-called “brute force” technique of the electron target polarization in a strong magnetic field (about 3T) in a plane perpendicular to the foil plane. Both the techniques can be used for different experiments for electron beam polarization measurements

СПОСОБ ВЫДЕЛЕНИЯ ЛИЧИНОК Toxocara canis ИЗ ПАРЕНХИМЫ ПЕЧЕНИ И ЛЕГКИХ ПЛОТОЯДНЫХ ЖИВОТНЫХ

The method of allocation of Toxocara canis larvae from parenchyma of liver and lung of carnivorous animals for postmortem diagnostics of toxocarosis is of-fered at a weak infection and in prepatent period. The received culture of larvae of T. canis can be used for studying pathogenesis of the diseases, carrying out genetic researches and receiving proteins with diagnostic and protective properties. The list of the equipment, reactants and solutions for allocation of T. canis larvae is given. The work course which consists of preparation of tests of tissue of a liver and lungs, preparation of artificial gastric juice, digestion of tissues, an assessment of the re-sults, concentration of T. canis larvae is described. For researches take samples of a parenchyma of lungs or a liver weighing 50 g, crush on a meat grinder. Samples digest to the current of 50 min. at a temperature of 41–42 °C. After 10 minute up-holding a deposit merge in Petri's cups and investigate on existence of T. canis lar-vae and their mobility. For concentration of a material a deposit centrifuge during 10 min.Предложен способ выделения личинок Toxocara canis из паренхимы печени и легких плотоядных животных для посмертной диагностики токсокароза при слабой инвазии и в период препатентной стадии. Полученную культуру личинок T. canis можно использовать для изучения патогенеза болезни, проведения генетических исследований и получения белков с диагностическими и протективными свойствами. Дан перечень оборудования, реактивов и растворов для выделения личинок T. canis. Описан ход работы, который состоит из подготовки проб ткани печени и легких, приготовления искусственного желудочного сока, переваривания проб тканей, оценки результатов, концентрации личинок T. canis. Для исследований берут пробы паренхимы легких или печени массой 50 г, измельчают на мясорубке. Пробы переваривают в течение 50 мин при температуре 41-42 оС при постоянном перемешивании. После 10-минутного отстаивания осадок сливают в чашки Петри и исследуют на наличие личинок T. canis и их подвижность. Для концентрации материала осадок центрифугируют 10 мин при 5000 об./мин

ПАТОГЕНЕЗ ДЕРМАТИТОВ ДЕМОДЕКОЗНОЙ ЭТИОЛОГИИ У СОБАК

Issues on demodecosis infection in dog population of Moscow have been studied; the dependence between the accents in the pathogenesis and the age and dog breed has been determined. The risk of acute demodecosis increases with the age, and in female dogs such risk goes up during their heat cycles. Biochemical values of the damage to internal organs: the total protein, glucose, urea, creatinine, activity of aspartate aminotransferase (AST) and alanine transaminase (ALT) in dogs’ blood have been estimated. In dogs with low and medium infection rates the average AST and ALT values were 51,05±2,64 and 98,69±3,85 u/l respectively, with a high infection rate 57,31±2,91 and 131,09±3,65 u/l. The increase of creatinine level and decrease in blood glucose of all tested dogs’ groups were observed. The most significant changes were determined in the levels of creatinine and glucose: up to 87,41±3,85 mkmol and 3,91±0,21 mmol respectively. Demodecosis should be considered as a complex issue requiring a detailed examination of enzyme levels and hormonal status. Изучены вопросы демодекозной инвазии среди популяции московских собак; установлена зависимость акцентов патогенеза болезни от возраста и породы животных. Установлено, что с возрастом риск возникновения острого демодекоза увеличивается, а у самок такой риск возрастает во время течки. Определены биохимические показатели повреждения внутренних органов: общий белок, глюкоза, мочевина, креатинин, активность АЛТ и АСТ в сыворотке крови собак. У собак с низкой и средней степенью инвазии среднее значение АсАТ и АлАТ составило соответственно 51,05± 2,64 и 98,69±3,85 МЕ/л, с высокой степенью инвазии – 57,31± 2,91 и 131,09±3,65 МЕ/л. Отмечено повышение уровня креатинина и снижение глюкозы в сыворотке крови собак всех опытных групп. Наибольшие изменения установлены в уровне креатинина и глюкозы – до 87,41±3,85 мкмоль и 3,91±0,21 ммоль соответственно. Демодекоз необходимо рассматривать как комплексную проблему, требующую тщательного исследования ферментного и гормонального статуса.

Measurement of the 12C(e,e'p)11B Two-Body Breakup Reaction at High Missing Momentum Values

The five-fold differential cross section for the 12C(e,e'p)11B reaction was determined over a missing momentum range of 200-400 MeV/c, in a kinematics regime with Bjorken x > 1 and Q2 = 2.0 (GeV/c)2. A comparison of the results and theoretical models and previous lower missing momentum data is shown. The theoretical calculations agree well with the data up to a missing momentum value of 325 MeV/c and then diverge for larger missing momenta. The extracted distorted momentum distribution is shown to be consistent with previous data and extends the range of available data up to 400 MeV/c.Comment: 12 pages, 1 table and 3 figures for submission to Journal Physics

A precise extraction of the induced polarization in the 4He(e,e'p)3H reaction

We measured with unprecedented precision the induced polarization Py in 4He(e,e'p)3H at Q^2 = 0.8 (GeV/c)^2 and 1.3 (GeV/c)^2. The induced polarization is indicative of reaction-mechanism effects beyond the impulse approximation. Our results are in agreement with a relativistic distorted-wave impulse approximation calculation but are over-estimated by a calculation with strong charge-exchange effects. Our data are used to constrain the strength of the spin independent charge-exchange term in the latter calculation.Comment: submitted to Physical Review Letter

Polarization Transfer in the 4He(e,e'p)3H Reaction at Q^2 = 0.8 and 1.3 (GeV/c)^2

Proton recoil polarization was measured in the quasielastic 4He(e,e'p)3H reaction at Q^2 = 0.8 (GeV/c)^2 and 1.3 (GeV/c)^2 with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the 1H(e,e' p) reaction, contradicting a relativistic distorted-wave approximation, and favoring either the inclusion of medium-modified proton form factors predicted by the quark-meson coupling model or a spin-dependent charge-exchange final-state interaction. For the first time, the polarization-transfer ratio is studied as a function of the virtuality of the proton