Большой промышленный капитал: новый взгляд на новые социальные феномены

Рец. на кн.: Головко В. Українські фінансово-промислові групи в модернізаційних процесах / Головко В. – К. : Інститут історії України, 2012. – 416 с

Charge screening and magnetic anisotropy in metallic rare-earth systems

The calculation of magnetic anisotropy constants is performed beyond the point charge model for a continuous charge density distribution of screening conduction electrons. An important role of the non-uniform electron density, in particular, of the Friedel oscillations, in the formation of crystal field is demonstrated. Such effects can modify strongly the effective ion (impurity) charge and even change its sign. This enables one to justify the anion model, which is often used at discussing experimental data on hydrogen-containing systems. Possible applications to the pure rare-earth metals and RCo5 compounds are discussed. The deformation of magnetic structure near the interstitial positive muon owing to the strong local anisotropy, and the corresponding contribution to the dipole field at the muon are considered.Comment: 10 pages, RevTeX, 3 figure

Anemia in Women of Reproductive Age

Anemia is a common condition in women of childbearing age which is associated with wide spread hyperplastic processes in the uterus (leiomyomas, etc.) and abnormal and/or abundant uterine bleeding (AUB). Our study has considered the main causes of bleeding and the therapy aimed on limiting the amount of blood loss, as well as preoperative treatment of iron deficiency in women with uterine leiomyomas, planning for pregnancy. The combination of anemia with other abnormalities in the woman’s health status is associated with complications during pregnancy such as premature births, the birth of small children and failure of the formation of neural tube in iron deficiency and hypoxia. During the treatment of iron deficiency anemia (IDA) with saline iron, we noted severity and pain in the stomach in 11.9% of patients, nausea in 13.1%, constipation in 21.4%, and diarrhea in 7.1% of women. Such complications did not occur while treating with ferric iron. The use of drugs Iron III hydroxide polymaltozate in women after the end of lactation resulted in normalization of the blood hemoglobin within 30 days and the number of erythrocytes and of serum ferritin by the 90th day

Optical and Tribological Properties of PVD/CVD Diamond-like Carbon Films

The optical and tribological properties of diamond-like carbon (DLC) films deposited by the combination of magnetron sputtering of graphite and plasmochemical dissociation of methane were studied. It was established that at methane concentration in the gas mixture Ar/CH4 at about 5–10 % the formation of DLC films with refraction index n 2.0, microhardness larger than 1000 HK and friction coefficient of 0.06–0.08 becomes possible

Optical and Tribological Properties of PVD/CVD Diamond-like Carbon Films

The optical and tribological properties of diamond-like carbon (DLC) films deposited by the combination of magnetron sputtering of graphite and plasmochemical dissociation of methane were studied. It was established that at methane concentration in the gas mixture Ar/CH4 at about 5–10 % the formation of DLC films with refraction index n 2.0, microhardness larger than 1000 HK and friction coefficient of 0.06–0.08 becomes possible

COMPLICATED FORMS OF DIVERTICULAR DISEASE OF THE COLONIN THE PRACTICE OF EMERGENCY SURGERY

Case histories of patients with complicated forms of diverticular disease of the colon were retrospectively studied. Diverticulum perforation prevailed in the structure of the complications of diverticular disease of the colon. The most common complication was perforation of diverticulum, of sigmoid colon. In the age + group the patients of 50—60 years dominated. Both one-step operations and multi-stage intervention, were used in the surgical treatment of patients with perforations of diverticulum of the colon. The preference was given to surgical interventions with the formation of colostomy

PHYSICOCHEMICAL CHARACTERIZATION OF RIBAVIRIN WITH SPECTROSCOPY AND MOLECULAR MODELING

This work was supported by Mendeleev University of Chemical Technology of Russia. Project Number K-003-2018

Предикторы тяжелых форм ротавирусной инфекции у детей

Rotavirus infection (RVI) is one of the most common childhood diseases. The study of predictors of severe forms of this disease is of undoubted interest.Aim. Based on the study of the characteristics of the premorbid background, life history and clinical and laboratory parameters, determine predictors of severe forms of RVI.Patients and methods. In the departments of intestinal infections and resuscitation and intensive care of Pediatric Research and Clinical Center for Infectious Diseases in the period 2018 – 202. a retrospective study of 962 children aged 2 months to 2 years with rotavirus infection was carried out. he severity of the condition was assessed using the Clarke scale. To identify the most significant predictors of the development of severe forms of RVI, two groups of patients were compared: severe (> 16 points) and moderate (≤16 points) forms of RVI. Comparison of the frequency of occurrence of signs in the groups was performed using the Pearson χ2 test and Fisher’s exact method. The forecasting model was developed using discriminant analysis of the statistical package Statistica for Windows.Results. Severe forms of RVI were detected in 65 children. Among the patients with severe forms of RVI, there were no patients with completed preventive vaccination. Patients with severe forms of RVI were admitted to the hospital in the late stages of the disease and had a higher score on the CDS scale. Based on the research carried out, a model for predicting severe forms of RVI was developed. The features included in the model were: the day of illness at admission, the patient’s age, prehospital prescription of antibacterial drugs, the absence of completed vaccination against RVI, and the severity of dehydration. Assessment of the quality of the created model showed that the classification ability was 97.7%.Conclusion. Predictors of severe forms of RVI include admission to a hospital in the late stages of the disease with severe dehydration, early age, prehospital antibiotics and forced transfer to artificial feeding, and absence of completed prophylactic vaccination.Ротавирусная инфекция является одним из наиболее распространённых заболеваний детского возраста. Несомненный интерес представляет изучение предикторов тяжёлых форм данного заболевания.Цель. На основании изучения особенностей преморбидного фона, анамнеза жизни и клинико-лабораторных параметров определить предикторы тяжелых форм ротавирусной инфекции.Материалы и методы. В отделениях кишечных инфекций и реанимации и интенсивной терапии Детского научно-клинического центра инфекционных болезней в период 2018–2021 гг. проведено ретроспективное исследование 962 детей от 2 месяцев до 2 лет с ротавирусной инфекцией. Тяжесть состояния оценивали с использованием шкалы Кларка. Для выявления наиболее значимых предикторов развития тяжелых форм ротавирусной инфекции были сопоставлены две группы пациентов: тяжелые (>16 баллов) и среднетяжелые (≤16 баллов) формы ротавирусной инфекции. Сравнение частоты встречаемости признаков в группах выполняли с помощью χ2 -критерия Пирсона и точного метода Фишера. Разработку модели прогнозирования осуществляли с помощью дискриминантного анализа статистического пакета Statistica for Windows.Результаты. Тяжелые формы ротавирусной инфекции были выявлены у 65 детей. Среди пациентов с тяжелыми формами ротавирусной инфекции не было ни одного пациента с завершённой профилактической вакцинацией. Пациенты с тяжелыми формами ротавирусной инфекции поступали в стационар на поздних сроках заболевания и имели более высокий балл по шкале CDS. На основании проведённых исследований была разработана модель прогнозирования тяжелых форм ротавирусной инфекции. Признаками, включенными в модель, оказались: день болезни при поступлении, возраст пациента, догоспитальное назначение антибактериальных препаратов, отсутствие завершенной вакцинации от ротавирусной инфекции, выраженность дегидратации. Оценка качества созданной модели показала, что классификационная способность составила 97,7%.Заключение. К предикторам тяжелых форм ротавирусной инфекции можно отнести поступление в стационар на поздних сроках болезни с тяжелой дегидратацией, ранний возраст, догоспитальное назначение антибиотиков и вынужденный перевод на искусственное вскармливание, а также отсутствие завершенной профилактической вакцинации.