Intelligent Bearing Fault Diagnosis Method Combining Mixed Input and Hybrid CNN-MLP model

Rolling bearings are one of the most widely used bearings in industrial machines. Deterioration in the condition of rolling bearings can result in the total failure of rotating machinery. AI-based methods are widely applied in the diagnosis of rolling bearings. Hybrid NN-based methods have been shown to achieve the best diagnosis results. Typically, raw data is generated from accelerometers mounted on the machine housing. However, the diagnostic utility of each signal is highly dependent on the location of the corresponding accelerometer. This paper proposes a novel hybrid CNN-MLP model-based diagnostic method which combines mixed input to perform rolling bearing diagnostics. The method successfully detects and localizes bearing defects using acceleration data from a shaft-mounted wireless acceleration sensor. The experimental results show that the hybrid model is superior to the CNN and MLP models operating separately, and can deliver a high detection accuracy of 99,6% for the bearing faults compared to 98% for CNN and 81% for MLP models

APPLICATION OF STEM CELLS AND PRECURSOR CELLS FOR STIMULATION OF ORGAN REVASCULARIZATION AND REGENERATION

Different angiogenic factors induced angiogenesis stimulation in ischemic tissues stays in the focus of scientific research for long time. The key role in ischemic angiogenesis belongs to endothelial precursor cells, plenty of which are reserved in bone marrow. Resident endothelial precursor cells are also found in some tissues and in circulation. These cells are involved in neoangiogenesis as well. Theoretically, injection of exogeneous endothelial precusor cells might contribute to restoration of circulation in the ischemic organ. Various types of cells have been approved for regeneration stimulation in a number of experimental protocols. A various degree of improvement of myocardial contractive function has been obtained as a universal result of these investigations, though the mechanisms underlying observed effect remain evasive. The paper focuses on advantages and drawbacks of embryonic, hematopoetic and mesenhimal stem cells application for angiogenesis stimulation and organs and tissues regeneration

Detection of Anaplasma phagocytophilum in Ixodes angustus Ticks Found in the Magadan Region

Reported is the event of detection of Anaplasma phagocytophilum in Ixodes angustus ticks using gene-diagnostic technique. Anaplasma DNA is identified in one of the nine samples of ixodic tick imago collected from common species of rodents in the suburbs of Magadan. The data obtained may be indicative of the existence of natural granulocytic anaplasmosis focus in the south of the Magadan Region where the agent persists in enzootic cycle: small mammals - Ixodes angustus

Features of self-consciousness of a teacher at different stages of professional formation

The paper discusses the features of professional self-awareness of teachers at different stages of professional developmentВ работе рассматриваются особенности профессионального самосознания педагогов на разных стадиях профессионального становлени

ВОЗМОЖНОСТИ ПРИМЕНЕНИЯ СТВОЛОВЫХ КЛЕТОК И КЛЕТОК-ПРЕДШЕСТВЕННИКОВ ДЛЯ СТИМУЛЯЦИИ РЕВАСКУЛЯРИЗАЦИИ И РЕГЕНЕРАЦИИ ОРГАНОВ

Different angiogenic factors induced angiogenesis stimulation in ischemic tissues stays in the focus of scientific research for long time. The key role in ischemic angiogenesis belongs to endothelial precursor cells, plenty of which are reserved in bone marrow. Resident endothelial precursor cells are also found in some tissues and in circulation. These cells are involved in neoangiogenesis as well. Theoretically, injection of exogeneous endothelial precusor cells might contribute to restoration of circulation in the ischemic organ. Various types of cells have been approved for regeneration stimulation in a number of experimental protocols. A various degree of improvement of myocardial contractive function has been obtained as a universal result of these investigations, though the mechanisms underlying observed effect remain evasive. The paper focuses on advantages and drawbacks of embryonic, hematopoetic and mesenhimal stem cells application for angiogenesis stimulation and organs and tissues regeneration. Стимуляция ангиогенеза в ишемизированных тканях путем воздействия различными ангиогенными факторами долгое время остается в центре внимания ученых. Ключевую роль в процессе неоангиогенеза при ишемии играют эндотелиальные клетки-предшественники, богатейшим резервуаром которых является костный мозг. Однако в некоторых тканях или в снабжающих орган кровеносных сосудах содержатся резидентные эндотелиальные клетки-предшественники, которые также участвуют в неоангиогенезе. Теоретически экзогенное введение клеток-предшественников эндотелиоцитов может способствовать восстановлению кровоснабжения органа. В ряде экспериментальных протоколов в целях стимуляции регенерации миокарда были апробированы различные типы клеток. В результате исследований был получен универсальный результат в виде улучшения сократительной функции сердца в различной степени, но механизмы этого эффекта трансплантации различных типов клеток остаются малоизученными. В статье рассматриваются преимущества и недостатки применения эмбриональных, гематопоэтических и мезенхимальных стволовых клеток с целью стимуляции ангиогенеза и регенерации органов и тканей.

Digital media preferences’ transformation of modern Russian youth in connection with new realities

The article considers features of modern Russian youth media preferences transformation against the activity’s restrictions of digital social platforms as Instagram, TikTok, etc. The authors have assumed that the “flow” of youth audience to other platforms would occur at a very rapid pace, and new platforms would be mastered in the shortest possible time, i.e. adaptation would be maximally effective. It has also been hypothesized that new platforms creation would attract youth audience, which would seek to “close” their consumer preferences through the newly emerging digital platforms in Russia, replacing those that were legally restricted. To test the above hypotheses, we have surveyed young people aged 18–24, who are the main audience that, according to the hypothesis of this study, would be most affected by media environment transformation. The main hypotheses have been tested by means of several blocks of questions to which the respondents gave answers first within the framework of a standardized questionnaire and then in free form within the framework of interviewing by the researchers. As a result of the study, it has been found out that the specifics of media preferences transformation among young people is not so significant compared to general changes in society, and therefore recommendations for further research directions have been put forward

Transforming the structure of unmarried women’s social perceptions of single motherhood through digital technologies

The transformation of the structure of social ideas about marriage and family relations in general and the structure of the modern family has been considered through digital technologies. The problem of the growing number of single mothers has been raised. Statistics for 20 years have been provided. The influence of several factors on the growth dynamics has been analysed. The influence of women`s emancipation, availability of remote work and the image of successful bloggers on changing the fields of social representations of modern unmarried women about single motherhood has been examined. One of the main reasons for changing the attitude of women to the image of single mother, namely the appearance of a new image-”solo-mom”, which is actively used in the digital environment, has been considered. Communities and groups in the social networks Vkontakte, Facebook, Instagram and Odnoklassniki, dedicated to supporting single mothers, have been studied. Blogs of single mothers who position themselves as “solo-mothers”, have been reviewed. The results of an empirical study aimed at identifying a factor that affects the change in the system of views and attitudes of unmarried women in the transition zone and the periphery have been presented. The responses of respondents received in 2014 and 2019 by the free Association experiment have been analysed. The respondents answers were divided into three categories: single mother status, status assessment, qualities of the single mother’s personality. The results of a comparative analysis of women’s social perceptions about single motherhood for the period from 2014 to 2019 have been presented. Based on the results obtained, conclusions about the change in perceptions of single mothers over the past 5 years, the emergence of a new image of a single woman with a child – “solo mom”, have been made

The validity of topical drug therapy for otitis media with effusion

Otitis media with effusion is difficult to diagnose, since the course of the disease is mostly asymptomatic, while the initial stage of the disease is very similar to Eustachiitis or the pre-perforative stage of acute otitis media. At this stage, dysfunction of the auditory tube and negative pressure in the tympanic cavity creates the conditions for the production of transudate, which clinically, in addition to hearing loss, is accompanied by soreness, a feeling of congestion, pressure, fluid transfusion in the ear. When conducting local medical procedures, they are primarily guided by the condition of the mucous membrane of the eustachian tube, nasopharynx and nasal cavity, but changes in the eardrum are no less important. Thus, the use of topical analgesics with an anti-inflammatory effect becomes no less relevant in the treatment.A literature review was carried out with an analysis of scientific research data on the use of a topical combination drug that has a local anesthetic and anti-inflammatory effect in the treatment of diseases of the external and middle ear.Analysis of the literature showed that the use of lidocaine-phenazone-containing drops promotes rapid regression of the inflammation in the external auditory canal and the tympanic membrane, as well as relieving of pain. It can be used both in children (including newborns) and in adults who are suffering from otitis media but with intact tympanic membrane, including otitis media with effusion.Combined topical drugs containing lidocaine-phenazone demonstrate efficacy and safety in the treatment of catarrhal and otitis media with effusion in all age groups

Emergence of new professions during the COVID-19 pandemic

The article examines the changes that have occurred in communications in all spheres of human activity: in business, retail, education, culture, banking, which occurred due to the pandemic that began in the winter of 2020. The pandemic has spurred and accelerated the information technologies development, changed the attitude to working from home in general. The article focuses on the global changes that have occurred in the personnel direction. The change in interaction formats – the transition to an online environment, is analysed. Conclusions are drawn about the remote work format perception and about the change in the “remote work” concept perception by both employees, and managers in companies. The data on new emerged professions in this period, and on demanded professions on the online communications development wave, are given

Digital adaptation issues for different demographics in Russian Moscow region

The article aims to analyze the adaptation specifics of four generations to digital technologies in Russian Moscow region. The research theoretical basis consists of the basic socio-demographic generations description within the William Strauss and Neil Hove generations theory. Using methods of sociological research (polls and in-depth interviews), the article analyzes the Strauss-Hove generational theory’s actual elements in relation to the socio-demographic landscape of modern Russian society. The article considers the interaction specifics with the digital environment and gadgets for various demographic sections, as well as their involvement in modern global trends regarding Internet addiction and online positioning. The article concludes that the development of various communication channels depending on demographic targeting is required