Metaphor translation in Edgar Allan Poes "Ligeia"

To express the fantastic picture the author uses a lot of stylistic devices and expressive meansye

Observation of Stochastic Resonance in Percolative Josephson Media

Measurements of the electrical response of granular Sn-Ge thin films below the superconducting transition temperature are reported. The addition of an external noise to the magnetic field applied to the sample is found to increase the sample voltage response to a small externally applied ac signal. The gain coefficient for this signal and the signal-to-noise ratio display clear maxima at particular noise levels. We interpret these observations as a stochastic resonance in the percolative Josephson media which occurs close to the percolation threshold.Comment: 4 pages, 5 figure

Characteristic of Stomach Ulcers, Complicated by Bleeding

Background. The benign nature of the gastric ulcer, determined during the initial video esophagogastroduodenoscopy (VEGD) in the presence of a hemorrhage or under the conditions of unstable hemostasis, is not a permanent characteristic of the pathological process, since most examinations do not include multifocal biopsy due to the danger of recurrent bleeding.Objectives: to evaluate the inflammatory changes, regenerative abilities of the peri-ulcer area and to predict malignization in the nearest post-hemorrhagic period.Methods. The work contains the examination data (VEGD, brush biopsy, morphological and immunohistochemical examinations) of 49 patients urgently admitted to the surgery with gastrointestinal bleeding, and further verification of gastric ulcer. Entry criteria were bleeding of the ulcer in the gastric mucosa, located in the antrum or the lesser curve with low risk of recurrent bleeding (Forrest 2C), presence of Helicobacter pylori.Results. Brush biopsy allowed determining the benign nature of ulcerative lesions in 98 % of the patients during the two-day period following the first VEGD. Morphological study revealed dysplasia at the edge of ulcerative lesion with first signs of regeneration in 14.3 % of the patients. In the presence of dysplasia, we noted a vibrant response (+++) with COX-2 (×400), even if the ulcerous defect was smaller than 1.0 cm.Conclusion. Considering our results, it is necessary to develop a strict algorithm for dynamic follow-up of patients with gastric ulcers, complicated by bleeding

Modern possibilities and prospects of early diagnosis of stomach cancer

The review includes 70 articles, most of which have been published for the last 5 years.The aim of the review: explore the modern possibilities and prospects of early diagnosis of stomach cancer. In 2018 in Russia, the mortality rate within one year after the diagnosis was 47.4%. Leading experts in luminal endoscopy from Japan, where more than 60% cases of stomach cancer are detected at an early stage, recommend using advanced endoscopic equipment for routine diagnostics, which allows enlarging the image, examining the capillaries of the mucosa and taking series of pictures. Artificial intelligence improves accuracy. Gastroscopic study with artificial intelligence compensates errors and limited capabilities of people, and provides greater accuracy. However, this technology is expensive, and esophagogastroduodenoscopy itself is an invasive method and can be used only in a clinical setting. In patients with a detectable lesion, a biopsy should be performed. It is important to obtain a sufficient amount of tissue when collecting material, however, many patients take anticoagulants, and thus sampling of numerous fragments can lead to bleeding. Given the limitations of esophagogastroduodenoscopy with biopsy and the fact that only 12.4% cases of stomach cancer in 2018 in Russia identified on the stage I, the searching of effective diagnostic tools is still relevant. MicroRNAs have been in the «cancer research arena» for over 10 years and are considered biomarkers that can help to differentiate between the patients with normal range, dysplasia and those with cancer. MicroRNA regulates all vital processes of a cell, moreover, they are stable and easily extracted from various biological materials, including tissues, blood, feces, saliva, ascitic fluid and even paraffin blocks. And although microRNAs are only entering clinical practice, the results obtained are encouraging

Ecological problems in horse-breeding

Наведено загальну інформацію щодо сучасних проблем конярства. Викладено концепцію екологізації конярських підприємств.Наведено загальну інформацію щодо сучасних проблем конярства. Викладено концепцію екологізації конярських підприємств.In the article is represented general information devoted to environmental problems in the horse- breeding. The concept of development of ecological explorations in the horse-breeding is considered as well.

Контроль достоверности дублированных измерений в условиях неопределенности

The paper considers a problem pertaining to truth control of dublicate measurings of technological variables under conditions of data deficit on characteristics of measuring facilities and controlled variables.The proposed control method improves a probability to detect and identify untrue dublicate measurings.Рассматривается задача контроля достоверности дублированных измерений технологических переменных в условиях дефицита информации о характеристиках средств измерений и контролируемых переменных.Предложенный метод контроля повышает вероятность обнаружения и идентификации недостоверных дублированных измерений

ANALYSIS OF RELIABILITY OF NONRECTORABLE REDUNDANT POWER SYSTEMS TAKING INTO ACCOUNT COMMON FAILURES

Reliability Analysis of nonrestorable redundant power Systems of industrial plants and other consumers of electric energy was carried out. The main attention was paid to numbers failures influence, caused by failures of all elements of System due to one general reason. Noted the main possible reasons of common failures formation. Two main indicators of reliability of non-restorable systems are considered: average time of no-failure operation and mean probability of no-failure operation. Modeling of failures were carried out by mean of division of investigated system into two in-series connected subsystems, one of them indicated independent failures, but the other indicated common failures. Due to joined modeling of single and common failures resulting intensity of failures is the amount incompatible components: intensity statistically independent failures and intensity of common failures of elements and system in total.It is shown the influence of common failures of elements on average time of no-failure operation of system. There is built the scale of preference of systems according to criterion of  average time maximum of no-failure operation, depending on portion of common failures. It is noticed that such common failures don’t influence on the scale of preference, but  change intervals of time, determining the moments of systems failures and excepting them from the number of comparators. There were discussed two problems  of conditionally optimization of  systems’  reservation choice, taking into account their reliability and cost. The first problem is solved due to criterion of minimum cost of system providing mean probability of no-failure operation, the second problem is solved due to criterion of maximum of mean probability of no-failure operation with cost limitation of system

Контроль допустимых кратковременных аварийных перегрузок силовых трансформаторов

The paper proposes a method for determination a permissible duration of short intermittent overloads of power transformers that permits to avoid non-permissible over-heating of winding insulation and fully utilize overloading transformer ability.Предложен способ определения допустимой длительности кратковременных перемежающихся перегрузок силовых трансформаторов, позволяющий избежать недопустимый перегрев изоляции обмоток и полностью использовать перегрузочную способность трансформаторов

Определение допустимых кратковременных аварийных перегрузок турбогенераторов и синхронных компенсаторов

The paper shows that failure to take into account variable ratio of short-time emergency overloading of turbo-generators (synchronous compensators) that can lead to underestimation of overloading capacity or impermissible insulation over-heating.A method has been developed for determination of permissible duration of short-time emergency over-loading that takes into account changes of over-loading ratio in case of a failure.Показано, что неучет переменной кратности кратковременной аварийной перегрузки турбогенераторов (синхронных компенсаторов) может привести к недооценке перегрузочной способности или недопустимому перегреву изоляции.Разработан способ определения допустимой длительности кратковременной аварийной перегрузки, учитывающий изменение кратности перегрузки в процессе аварии

Методика выбора невосстанавливаемых резервированных систем управления технологическими процессами

The paper contains analysis of reliability of non-restored passive reserved systems pertaining to control of technological processes. Criteria have been justified and methodology for optimum selection of reserved systems has been developed.Проведен анализ надежности невосстанавливаемых пассивных резервированных систем контроля и управления технологическими процессами. Обоснованы критерии и разработана методика оптимального выбора резервированных систем