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  • 1
    In: Pediatrician (St. Petersburg), ECO-Vector LLC, Vol. 14, No. 2 ( 2023-07-06), p. 5-16
    Abstract: BACKGROUND: To date, several options for helping pregnant women with rhesus immunization are known: (a) active tactics in carrying out methods of efferent therapy in the form of basic operations (plasmapheresis, hemosorption) in combination with adjuvant methods (immunoglobulin, blood photomodification with ultraviolet, laser beams, ozone therapy) to pregnant women; (b) wait-and-see active tactics with observation of the pregnant woman, followed by intrauterine intravascular transfusions of washed donor red blood cells; (c) mixed active tactics with a sequential combination, alternation of these methods. In Russia, only option 2 with fetal transfusions of washed donor red blood cells is accepted as the basis and paid for. The objective of the study is to conduct a comparative analysis of pregnancy outcomes in women with rhesus immunization using different management options. MATERIALS AND METHODS: A total of 392 women were followed up at seven different institutions in Russia and at the Donetsk Center for Maternal and Child Health (DNR), of whom 345 pregnant women (Group 1) received efferent therapy, 33 women (Group 2) had fetuses intrauterine bypass surgery, and 14 pregnant women (Group 3) had mixed efferent therapy and fetal PEEP bypass surgery. RESULTS: The analysis showed that the most favorable results for the main clinical indicators (premature, operative delivery, fetal hypoxia at birth, etc.) were in Group 1 and 3 women, in which the perinatal mortality was 14.5/1000 and 0/1000, respectively, which was significantly lower than in Group 2 (176.5/1000). It was also found that in Groups 2 and 3 women, the mean intervals between repeated transfusions of washed donor red blood cells were 8.8 0.2 and 21.4 3.8 days (p 0.01), which may be explained by the detoxifying effect of efferent therapy methods, preservation of fetal red blood cells and transfused donor red blood cells to the fetus with prolonged gestation and obtaining healthier and more viable progeny. CONCLUSIONS: 1. Severe Rh conflict is a manifestation of a syndrome of systemic effects of aggressive metabolites of specific and nonspecific nature. 2. The etiopathogenetic measure in the prevention and treatment of HDF/HDN in rhesus conflict is efferent therapy methods for the mother, and transfusion of washed donor rhesus-negative red blood cells to the fetus is effective, but a temporary, palliative measure, as is the case in multiple organ failure. 3. In the treatment protocols, efferent therapy methods must be present to prevent fetal red cell destruction and, equally importantly, to prevent destruction of Rh-negative donor red cells transfused to the fetus.
    Type of Medium: Online Resource
    ISSN: 2587-6252 , 2079-7850
    Language: Unknown
    Publisher: ECO-Vector LLC
    Publication Date: 2023
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  • 2
    In: Langmuir, American Chemical Society (ACS), Vol. 25, No. 5 ( 2009-03-03), p. 3146-3151
    Type of Medium: Online Resource
    ISSN: 0743-7463 , 1520-5827
    RVK:
    Language: English
    Publisher: American Chemical Society (ACS)
    Publication Date: 2009
    detail.hit.zdb_id: 2005937-1
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  • 3
    In: The Journal of Physical Chemistry C, American Chemical Society (ACS), Vol. 114, No. 14 ( 2010-04-15), p. 6350-6355
    Type of Medium: Online Resource
    ISSN: 1932-7447 , 1932-7455
    RVK:
    Language: English
    Publisher: American Chemical Society (ACS)
    Publication Date: 2010
    detail.hit.zdb_id: 2256522-X
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  • 4
    Online Resource
    Online Resource
    European Open Science Publishing ; 2023
    In:  European Journal of Education and Pedagogy Vol. 4, No. 2 ( 2023-03-06), p. 26-30
    In: European Journal of Education and Pedagogy, European Open Science Publishing, Vol. 4, No. 2 ( 2023-03-06), p. 26-30
    Abstract: The aim of the article is to analyze peculiarities of the professional orientation taking into account such methodological peculiarities as: psycho-physiological features of the audience, structure of the proforientation methods, statistical approaches to classify survey results and ways of presenting data when developing students’ profiles. Analysis of the problem field of research shows that at the federal, regional and local level the urgent task is to develop, integrate and implement a professional orientation system, which would include complex versions of diagnostic tests, an educational cloud space and, in particular, a digital platform (Learning Management System) for storage and processing of statistical data, as well as staff modernization programs with the aim of developing tutoring support system. The novelty of the work lies in describing the experience of implementing an early professional orientation model in a private school, taking into account peculiarities of educational process organization. Research methodology and methods: in writing article methods of induction and deduction, methods of comparative analysis and synthesis of information were used, the analysis of various forms of questionnaire survey was carried out.
    Type of Medium: Online Resource
    ISSN: 2736-4534
    Language: Unknown
    Publisher: European Open Science Publishing
    Publication Date: 2023
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  • 5
    Online Resource
    Online Resource
    ECO-Vector LLC ; 2022
    In:  Epidemiology and Infectious Diseases Vol. 27, No. 1 ( 2022-10-07), p. 23-32
    In: Epidemiology and Infectious Diseases, ECO-Vector LLC, Vol. 27, No. 1 ( 2022-10-07), p. 23-32
    Abstract: BACKGROUND: Vibrio cholerae can exist in planktonic and biofilm forms. There are no unified methods for recording the formation of a biofilm and the quantitative determination of microorganisms; the known methods are laborious and do not allow an objective assessment of the concentration of V. cholerae in biofilms. AIM: This study aimed to evaluate the method for the quantitative determination of V. cholerae in biofilm and planktonic forms based on real-time PCR. MATERIALS AND METHODS: The concentration of V. cholerae in plankton was determined by the bacteriological method based on the number of colony-forming units per 1 ml; in biofilms, the method of imprint depletion on agar plates was used. Real-time PCR was performed using the primers and probes described in the literature for detecting the hlyA and ctx genes. V. cholerae were quantified using built-in software and standard preparations with a known concentration of bacterial cells. The results were processed in Microsoft Office Excel 2016 spreadsheets using the decimal logarithm; statistical analysis was performed using the Statistica 13.3 program. RESULTS: During the observation period, the concentration of V. cholerae in biofilms on chitin and plastic increases as the incubation period increases. The amount of V. cholerae in the composition of biofilms and plankton on/above chitin exceeded those when used as a plastic substrate. On the 30th day, the difference was two or more orders of magnitude. The results of the two methods were reproducible and comparable; at the same stages, the concentration of V. cholerae varied within the same order of magnitude, which indicated the reliability of the PCR-RT results. CONCLUSION: The bacteriological method is informative in the qualitative assessment of biofilms, in determining the viability of cholera vibrios. However, due to its complexity, with the impossibility of quickly determining the concentration of V. cholerae in a biofilm on chitin, it is preferable to use real-time PCR, which allows you to assess the concentration of V. cholerae in plankton and biofilm accurately and quickly.
    Type of Medium: Online Resource
    ISSN: 2411-3026 , 1560-9529
    URL: Issue
    Language: Unknown
    Publisher: ECO-Vector LLC
    Publication Date: 2022
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  • 6
    Online Resource
    Online Resource
    Central Research Institute for Epidemiology ; 2023
    In:  Journal of microbiology, epidemiology and immunobiology Vol. 100, No. 2 ( 2023-05-22), p. 188-195
    In: Journal of microbiology, epidemiology and immunobiology, Central Research Institute for Epidemiology, Vol. 100, No. 2 ( 2023-05-22), p. 188-195
    Abstract: Introduction. Evaluation of antibiotic sensitivity of biofilms formed by Vibrio cholerae can help in the search for effective drugs to combat cholera. The aim of the work is to evaluate the effectiveness of antibacterial drugs against V. cholerae cells being a part of a polymicrobial biofilm formed on various substrates. Materials and methods. Mono- and polymicrobial biofilms were simulated in vitro on chitin and plastic in flasks containing tap autoclaved water contaminated with a suspension of 104 microbial cells of three strains of V. cholerae O1 El Tor separately or in combination with Escherichia coli QD 5003. Results. When being a part of mono- or polymicrobial bacterial communities formed by the studied strains on chitin or plastic, the V. cholerae and E. coli cells were less susceptible to the action of antibacterial drugs. Conclusion. The increased antibiotic resistance of V. cholerae biofilms formed on biotic and abiotic surfaces highlights the danger of their spread and preservation in the environment, creates additional problems regarding the use of antibiotics and requires the development of alternative strategies to reduce resistance.
    Type of Medium: Online Resource
    ISSN: 2686-7613 , 0372-9311
    Language: Unknown
    Publisher: Central Research Institute for Epidemiology
    Publication Date: 2023
    SSG: 12
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  • 7
    Online Resource
    Online Resource
    Central Research Institute for Epidemiology ; 2020
    In:  Journal of microbiology, epidemiology and immunobiology Vol. 97, No. 2 ( 2020-05-06), p. 165-173
    In: Journal of microbiology, epidemiology and immunobiology, Central Research Institute for Epidemiology, Vol. 97, No. 2 ( 2020-05-06), p. 165-173
    Abstract: The review presents retrospective data on six cholera pandemics and current views on the causative agent of the seventh pandemic V. cholerae El Tor, which caused a pandemic infection with the formation of true persistent and temporary intermediate endemic foci that provide the longest pathogen circulation in the history of the disease. One of the possible explanations for such a long course of the cholera pandemic is associated with an extremely high variability of the genome and the development of a number of adaptive reactions that allow cholera vibrios to adapt and remain in the environment. Due to the development of molecular genetic research methods, the ability of cholera vibrios to form biofilms which increases stress resistance, the ability to spread by attachment to abiotic (plastic) and biotic substrates (zooplankton and phytoplankton) has been discovered. Biofilm formation is also directly related to overcoming the antagonistic action of members of aquatic ecosystems. Another strategy for the survival of cholera vibrios is the transition to an uncultured state that proves a low level of death in the population. Published data on the possible effects of temperature increasing due to the climate change on cholera outbreaks in Africa (Democratic Republic of the Congo, Nigeria, Angola, Zimbabwe, Sierra Leone), Southeast Asia (Thailand, Malaysia), Central Asia (Pakistan, Afghanistan, Kazakhstan) and South Asia (Nepal) are overviewed. Based on the publications of recent years, an analysis is made of the current state of the studied problem in the Russian Federation and, in particular, in the Rostov region.
    Type of Medium: Online Resource
    ISSN: 2686-7613 , 0372-9311
    URL: Issue
    Language: Unknown
    Publisher: Central Research Institute for Epidemiology
    Publication Date: 2020
    SSG: 12
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  • 8
    In: Epidemiology and Infectious Diseases, ECO-Vector LLC, Vol. 27, No. 5 ( 2023-02-15), p. 290-300
    Abstract: BACKGROUND: In the summer-autumn period, the peak of phytoplankton reproduction and flowering occurs and results in the deterioration of the quality of river water is noted. At the same time, cases of gastrointestinal diseases in humans are recorded, and epidemic complications of cholera may occur in endemic areas. V. cholerae form biofilm on the surface of chitinous hydrobionts and plastic components can lead to the spread of V. cholerae, possibly explaining the autochthonous mechanism of their existence in water bodies. AIM: This study determines the duration of Vibrio cholerae preservation on biotic (chitin) and abiotic (plastic) substrates in the presence of green unicellular algae with a change in cultivation temperature under experimental conditions. MATERIALS AND METHODS: This study used bacteriological and molecular genetic methods to achieve its goal. RESULTS: The preservation of toxigenic and non-toxigenic strains of V. cholerae O1 El Tor and V. cholerae O139 (ctxАВ+tcpА+csh1 and ctxАtcpАcsh1+) for six months, including three months at a low temperature simulating the autumn-winter period, as part of biofilms in microcosms, where one component is green microalgae. We noted an excess of the concentration of V. cholerae O1 and O139 serogroups by two orders of magnitude in samples where one of the components is chitin and the reproduction of green microalgae in the presence of a chitin substrate. This is probably one stage in the food chain in the ecology of water bodies and, accordingly, can be a reservoir for biofilm forms of cholera vibrios. Preservation of V. cholerae O1 El Tor non-toxigenic strain in a viable state in biofilm samples on plastic at decreased temperatures 82C for three months is possibly due to the presence of a cold shock gene in its genome. CONCLUSION: Without a substrate for adhesion, colonization, and biofilm formation, vibrios are incapable of long-term persistence at low temperatures.
    Type of Medium: Online Resource
    ISSN: 2411-3026 , 1560-9529
    URL: Issue
    Language: Unknown
    Publisher: ECO-Vector LLC
    Publication Date: 2023
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  • 9
    In: The Lancet, Elsevier BV, Vol. 390, No. 10093 ( 2017-07), p. 457-468
    Type of Medium: Online Resource
    ISSN: 0140-6736
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2017
    detail.hit.zdb_id: 2067452-1
    detail.hit.zdb_id: 3306-6
    detail.hit.zdb_id: 1476593-7
    SSG: 5,21
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  • 10
    Online Resource
    Online Resource
    European Open Science Publishing ; 2023
    In:  European Journal of Education and Pedagogy Vol. 4, No. 2 ( 2023-03-23), p. 115-119
    In: European Journal of Education and Pedagogy, European Open Science Publishing, Vol. 4, No. 2 ( 2023-03-23), p. 115-119
    Abstract: The purpose of this article is to analyze the effectiveness of the implementation of bilingual education, taking into account the methodological and organizational issues. The methodological issues include the issues of goal setting, teaching principles and selected methods and pedagogical technologies. The correlation of disciplines in the curriculum, as well as the problems of educational and methodological support for bilingual study of individual disciplines can be considered as issues of organizational nature.   The analysis of the problem field of research shows that the prevailing processes of globalization and digitalization of society lead to changes in the requirements to the types and level of development of professional and universal competences of graduates at all levels of education. In Russia, as in many countries, there is a growing demand for bachelor’s and master’s degree programs in English and, accordingly, for bilingual education in schools and colleges with active use of English. The novelty of the work lies in the description of the real experience of modernization of the educational process in the educational institution in the implementation of the bilingual model of learning in both primary and basic and secondary general education. Research methodology and methods: in writing the article the methods of induction and deduction, methods of comparative analysis and synthesis of information, the analysis of various forms of questionnaire survey were used.
    Type of Medium: Online Resource
    ISSN: 2736-4534
    Language: Unknown
    Publisher: European Open Science Publishing
    Publication Date: 2023
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