196 research outputs found

    ОПРЕДЕЛЕНИЕ УСЛОВИЙ ПЕРЕХОДА ВЯЗКОЙ СУСПЕНЗИИ В ВЯЗКОПЛАСТИНЧАТЫЙ МАТЕРИАЛ НА СИТЕ ВИБРОГРОХОТА

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    Обезвоживание угольных шламовых суспензий на виброгрохотах по сво- ему физическому представлению значительно отличается от обезвоживания влажного материала

    Бухгалтерский учет основных средств

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    Inflammatory pseudotumors (IPs), mostly benign lesions characterized by fibrotic ground tissue and polyclonal mononuclear infiltrate, may affect all organ systems. IPs originating in the central nervous system (IP-CNS) are very rare, and their distinct histopathologic features are poorly characterized. Three otherwise healthy patients (age 8, 15, and 17 years) presented with focal neurologic symptoms (seizures, n = 2; headaches, n = 1), corresponding to a left temporal, left occipital, and left frontal IP, respectively, extending from meningeal structures into brain tissue. After resection, no recurrence was observed in patient 1 during 5 years of follow-up, whereas patient 2 developed a rapidly progressive local recurrence and a second intracerebral lesion despite antiviral, immunosuppressive, antibiotic, and radiation therapy. In patient 3, who also showed local recurrences, sequential histopathologic investigations revealed transformation to a semimalignant fibrohistiocytic tumor. In this patient, anaplastic lymphoma kinase (ALK) expression was also positive, whereas it was negative in patient 1. A detailed literature analysis confirmed that most IP-CNS arise from dural/meningeal structures (n = 34). Intraparenchymatous (n = 7), mixed intraparenchymatous/meningeal (n = 4), and intraventricular lesions (n = 7) or IP extending per continuitatem from intracerebral to extracerebral sites (n = 5) were rare. The recurrence rate was 40% within 2 years in general. It was increased after incomplete resection and in female patients (multivariate Cox regression model, P < 0.02). Although rare, IP-CNS are important differential diagnoses among tumor-like intracranial lesions. Their potential risk of malignant transformation and high risk of recurrence necessitate close follow-up, especially when resection is incomplete. Prospective multicenter trials are needed to optimize classification and treatment of this rare inflammatory lesion. Copyright 2003, Elsevier Inc. All rights reserved

    Система электропривода задвижки паропровода

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    INTRODUCTION: Encephalitis is a rare complication of primary varicella-zoster virus (VZV) infection in immunocompetent children. METHODS: The clinical and laboratory findings of two girls with VZV-related encephalitis are reported. RESULTS: Both children presented with focal epileptic seizures, corresponding to cortical/subcortical as well as white matter lesions. The first showed a typical vesicular skin rash. She was easily diagnosed and made a rapid recovery during acyclovir and steroid treatment. In the second girl, a preceding measles-mumps-rubella virus vaccination and the absence of skin vesicles were misleading with respect to the diagnosis, which was finally proven by IgG seroconversion and intrathecal synthesis of IgG antibodies to VZV. She developed left parieto-occipital tissue necrosis and recovered only transiently during initial acyclovir/steroid treatment. Eight weeks after onset, progressive white matter demyelination and the occurrence of erythema nodosum in the lower limbs necessitated a second 4-month course of oral steroids. The VZV PCR from cerebrospinal fluid was negative in both children. CONCLUSIONS: Primary VZV infection may cause severe encephalitis that may occur without skin vesicles and lead to a chronic course with systemic vasculitis. The coincidence of vaccination and neurologic diseases offers no proof per se of a causal relationship

    Особенности разработки палеозойских отложений Томской области

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    peer reviewedProton magnetic resonance spectroscopic data ((1)H-MR spectroscopy) of patients with 18q deletion syndrome have not yet been reported. (1)H-MR spectroscopy, performed in an affected 2-year-old girl with markedly delayed neuromotor development and typical supratentorial white-matter disease (WMD), showed an increase of choline and alpha-glutamate concentrations. Eight months later, simultaneously with clinical improvement, alpha-glutamate had normalised whereas choline remained slightly increased. Active demyelination or increased myelin turnover might contribute to the hitherto unexplained WMD of this rare disorder

    Роль текстурированного инструмента в повышении эффективности процесса обработки резанием

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    Текстурирование поверхности является одним из перспективных методов, который влияет на улучшение трибологических свойств инструментов. Текстуры поверхности имеют разный геометрический размер, форму и, как правило, создаются либо на боковой поверхности, либо на передней поверхности режущего инструмента. Качество текстуры в значительной степени зависит от производственных процессов, которые были использованы

    Исследование влияния давления в реакторах на процесс каталитического риформинга бензинов

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    Freeman-Sheldon syndrome is defined as a combination of microstomia, deep set eyes, small palpebral fissures, arthrogryposis with ulnar deviation of the hand, talipes equinovarus and generalized muscular hypertension. Respiratory and swallowing problems are frequently encountered in these patients due to small orifices of mouth and nose. Obstruction of the upper airway tract resulting in tracheostomy has only been described twice. The described child manifested the typical dysmorphic features of Freeman-Sheldon syndrome and suffered from serious respiratory distress and swallowing difficulties from birth. The boy died at the age of 7 months after accidental decannulation of the tracheostoma during sleep. He did not show anatomical or histopathological abnormalities in the pharyngeal, laryngeal or tracheal regions. We assume that the only explanation of the repeated obstructive episodes is a functional muscular obstruction. Copyright © 2002 S. Karger AG, Basel

    Формирование алмазоподобных кремний-углеродных покрытий

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    Выпускная квалификационная работа 111 с., 23 рис., 29 табл., 39 источников, 1 прил. Ключевые слова: алмазоподообные углеродные, кремний, ПФМС, несамостоятельный дуговой разряд, твердость, тонкие пленки. Объектом исследования являются алмазоподобные кремний-углеродные покрытия, полученные из плазмы несамостоятельного дугового разряда с накаленным катодом. Цель работы – изучение процесса формирования алмазоподобных кремний-углеродных покрытий и исследование их свойств В процессе работы проводилась оптимизация процесса осаждения и экспериментальные исследования полученных пленок. В результате исследования были получены твердые покрытия с низкой степенью износа и низким коэффициентом трения. Область применения: повышение срока службы промышленных механизмов, медицинских инструментов и др.Final qualifying work of 111 p., 23 Fig., 29 tables, 39 source, 1 app. Keywords: diamond-like carbon, silicon, PFMS, dependent arc discharge, hardness, thin films. The object of the study is silicon-doped diamond-like carbon films prepared from the plasma of the dependent arc discharge with hot cathode. The work objective was the optimization of the process of deposition of silicon-doped diamond-like carbon films, synthesis of coatings and their research. In the process of the work it was carried out, that the optimization of the deposition process and experimental investigations of the received films. The study was received the solid films with a high wear resistance and a low friction coefficient. Scope: improving the lifetime of industrial machinery, medical tools, and other

    Folate Receptor Alpha Autoantibodies in Autism Spectrum Disorders: Diagnosis, Treatment and Prevention.

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    Folate deficiency and folate receptor autoimmune disorder are major contributors to infertility, pregnancy related complications and abnormal fetal development including structural and functional abnormalities of the brain. Food fortification and prenatal folic acid supplementation has reduced the incidence of neural tube defect (NTD) pregnancies but is unlikely to prevent pregnancy-related complications in the presence of folate receptor autoantibodies (FRAb). In pregnancy, these autoantibodies can block folate transport to the fetus and in young children, folate transport to the brain. These antibodies are prevalent in neural tube defect pregnancies and in developmental disorders such as cerebral folate deficiency (CFD) syndrome and autism spectrum disorder (ASD). In the latter conditions, folinic acid treatment has shown clinical improvement in some of the core ASD deficits. Early testing for folate receptor autoantibodies and intervention is likely to result in a positive outcome. This review discusses the first identification of FRAb in women with a history of neural tube defect pregnancy and FRAb's association with sub-fertility and preterm birth. Autoantibodies against folate receptor alpha (FRα) are present in about 70% of the children with a diagnosis of ASD, and a significant number of these children respond to oral folinic acid with overall improvements in speech, language and social interaction. The diagnosis of folate receptor autoimmune disorder by measuring autoantibodies against FRα in the serum provides a marker with the potential for treatment and perhaps preventing the pathologic consequences of folate receptor autoimmune disorder

    Анализ финансового состояния предприятия по данным бухгалтерской отчетности

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    Выпуская квалификациoнная работа объемом 100 с., 14 табл., 8 рис., 35 источника, 3 приложения.Цель выпускной квалификационной работы – провести анализ финансового состояния предприятия по данным бухгалтерской отчетности. Объект выпускной квалификационной работы – ООО "Образовательный центр "Образовательный центр Консультант". Предмет выпускной квалификационной работы - бухгалтерская отчетность как информационная база для анализа финансового состояния предприятия.Releasing qualifications o equipped work volume 100 with ., 14 table ., 8 rice ., 35 source , 3 application . The purpose of graduation qualification work - conduct an analysis of the financial condition of the enterprise according to the accounting. Object graduation qualification work - LLC " Educational center " Educational centre Consultant". The subject graduation qualification work - accounting as an information base for the analysis of the financial condition of the enterprise
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