Thomas-Ehrman effect in a three-body model: 16^{16}Ne case

The dynamic mechanism of the Thomas-Ehrman shift is studied in three-cluster systems by example of $^{16}$Ne and $^{16}$C isobaric mirror partners. We predict configuration mixings for $0^+$ and $2^+$ states in $^{16}$Ne and $^{16}$C. Large isospin symmetry breaking on the level of wave function component weights is demonstrated for these states and discussed as three-body mechanism of Thomas-Ehrman shift. It is shown that the description of the Coulomb displacement energies requires a consistency among three parameters: the $^{16}$Ne decay energy $E_T$, the $^{15}$F ground state energy $E_r$, and the configuration mixing parameters for the $^{16}$Ne/$^{16}$C $0^+$ and $2^+$ states. Basing on this analysis we infer the $^{15}$F $1/2^+$ ground state energy to be $E_r=1.39-1.42$ MeV.Comment: 10 pages 8 figure

Decay mechanism and lifetime of 67^{67}Kr

The lifetime of the recently discovered $2p$ emitter $^{67}$Kr was recently found considerably below the lower limit predicted theoretically. This communication addresses this issue.Different separation energy systematics are analyzed and different mechanisms for $2p$ emission are evaluated. It is found that the most plausible reason for this disagreement is a decay mechanism of $^{67}$Kr, which is not "true $2p$" emission, but "transition dynamics" on the borderline between true $2p$ and sequential $2p$ decay mechanisms. If this is true, this imposes stringent limits $E_r=1.35-1.42$ MeV on the ground state energy of $^{66}$Br relative to the $^{65}$Se-$p$ threshold.Comment: 7 pages, 8 figure

Transition from direct to sequential two-proton decay in ss-dd shell nuclei

Transitions among different mechanisms of two-proton decay are studied in general. The introduced improved direct-decay model generalizes the semi-analytical models used before and provides flawless phenomenological description of three-body correlations in $2p$ decays. This is demonstrated by examples of the low-lying $^{16}$Ne state decays. Different forms of transition dynamic are shown to be highly probable beyond the proton dripline for the $s$-$d$ shell nuclei. It is demonstrated that transition dynamic of $2p$ emitters can provide means for extraction of a width of the ground-state resonance of a core+$p$ subsystem of the core+$2p$ system. Practical applicability of the method is demonstrated by properties of the $^{14}$F ground state derived from the ^{15}\mbox{Ne}\rightarrow ^{\,13\!\!}\mbox{O}+2p decay data and of the $^{29}$Cl ground state derived from the ^{30}\mbox{Ar}\rightarrow ^{\,28\!\!}\mbox{S}+2p decay data.Comment: 8 pages, 10 figure

Psychology and pedagogical aspects of the relation to the profession, or from the academic motivation of students to quality of education

In the article, the authors present the results of the study of academic motivation of 4th year students of the faculty of medical prevention, taking into account the form of education, age and gender characteristics. The authors confirmed the high level of motivation of students to knowledge and self-development, the desire to achieve high results in educational activities. However, some students, mostly girls, on a budget form, have difficulties in mastering the curriculum and a loss of interest in learning.В статье представлены результаты изучения академической мотивации студентов 4 курса медико-профилактического факультета с учетом формы обучения, возраста и гендерной характеристики. Подтверждены высокие уровни их мотивации к познанию и саморазвитию, стремление к достижению высоких результатов в учебной деятельности. Однако у части студентов, преимущественно девушек, на бюджетной форме имеют место трудности в освоении учебной программы и потеря интереса к учебе

From Monitoring the Commitment to Inoculations among Healthcare Workers during the COVID-19 Pandemic to Overcoming Communication Risks in the Process of Vaccination

Introduction: The epidemic process of the novel coronavirus disease (COVID-19) can be managed only through vaccination. Yet, despite the availability of effective immunobiological preparations, health administrators often face a negative attitude of the population, including healthcare professionals, to vaccination. Objective: To establish commitment of workers of health facilities to vaccination against COVID–19 during different periods of the pandemic using modern online resources and to justify the need to develop effective practices of dealing with communicative risks in the course of vaccination. Materials and methods: The study was conducted in several successive stages corresponding to five waves of the COVID-19 pandemic in the Russian Federation by means of an online survey of 5,304 health workers using Google Forms. We applied sociological and statistical methods of research. Results: We observed that the attitude to vaccination against COVID-19 among the employees of health institutions was ambiguous and changed over time demonstrating a gradual increase in adherence to inoculations. The potential risk group with a negative attitude towards vaccination included female nurses and workers of non-medical specialties with less than five years of work experience. An insufficient level of commitment to coronavirus vaccination among the personnel of health facilities has been also noted in other countries, which is a serious problem on a global scale hindering the victory over this novel infection. Conclusion: We assessed commitment to inoculations against COVID-19 among medical workers using modern online resources and found its inadequate level necessitating effective interventions aimed at awareness raising and training in modern practices of effective communications. © 2023, Federal Center for Hygiene and Epidemiology. All rights reserved

К вопросу о причинах активизации эпидемического процесса кори на этапе элиминации инфекции и прогнозе развития ситуации на ближайшую и отдаленную перспективу

Introduction. Measles infection in recent years has become particularly relevant in connection with the registration of outbreaks of this disease in various territoriesof the Russian Federation and abroad.The aim of the study is to characterize the epidemic process of measles in a large industrial city in the near and long term with the use of modern mathematical modeling technologies for making new management decisions on infection control at the elimination stage.Materials and methods. The research materials were data from statistical reports of measles incidence in Yekaterinburg from 1950 to 2019 (70 years of follow-up), medical documentation of measles cases, population vaccination data (form No. 6 for 2000—2018 and outpatient maps of children under two years of age vaccinated against measles), results of screening for measles IgG ofmedical organizations, data of planned serological monitoringof population immunity to measles in «indicator» groups in the period from 2013 to 2017 and the results of mathematical modeling of measles incidence in different scenarios of its prevention.Results. Under the influence of vaccination, the epidemic process of measles in Yekaterinburg — a city with a population of 1.5million inhabitants-has undergone significant changes. During the observation period, the incidence decreased to sporadic levels, there was no indigenous measles, drifts from endemic areas had no consequences, the epidemic process was under control. However, outbreaks of 72 cases in 2016 and 90 cases in 2019 have changed our view of measles as a eradicated infection.Of the factors that led to the spread of infection in the foci, the most significant were the presence of measles-susceptible children and adults, including those previously vaccinated, mainly in the periods remote from vaccination and revaccination, defects in the clinical diagnosis of measlesin the first and subsequent cases, and violations in the organization and conduct of anti-epidemic measures. Conclusion. Based on the data of mathematical modeling of the epidemic process of measles with different combinations of its determinants, for the elimination of infection, it is necessary to ensure vaccination against measles at the age of 1 year and 6 years in 95—97.5%. In vulnerable groups for infection to discuss the introduction of routine revaccination among people up to 50 years of age with an interval of 10 years.Коревая инфекция в последние годы приобретает особую актуальность в связи с регистрацией вспышек данного заболевания на различных территориях Российской Федерации и за рубежом.Цель исследования — дать характеристику эпидемического процесса кори в крупном промышленном городе на ближайшую и отдаленную перспективу c использованием современных технологий математического моделирования, для принятия новых управленческих решений по контролю инфекции на этапе элиминации.Материалы и методы. Материалами исследования были данные статистических отчетов о заболеваемости корью в Екатеринбурге с 1950 по 2019 гг. (70 лет наблюдения), медицинская документация заболевших корью, данные привитости населения (форма № 6 за 2000—2018 гг. и амбулаторные карты привитых против кори детей до двухлетнего возраста), результаты скри-инга на противокоревые IgG сотрудников медицинских организаций, данные планового серологического мониторинга популяционного иммунитета к кори в «индикаторных» группах в период с 2013 по 2017 гг. и результаты математического модели-ования заболеваемости корью в условиях разных сценариев ее профилактики.Результаты. Под влиянием вакцинопрофилактики эпидемический процесс кори в Екатеринбурге — городе с населением в 1,5 млн жителей — претерпел значительные изменения. За период наблюдения заболеваемость снизилась до спорадического уровня, не стало индигенной кори, заносы с эндемичных территорий неимели последствий, эпидемический процесс был под контро-лем. Однако вспышки инфекции в 72 случая в 2016 году и 90 случаев в 2019 году изменили наше представление о кори как о ликвидированной инфекции.Из факторов, которые привели к распространению инфекции в очагах, наиболее значимыми были наличие восприимчивых к кори детей и взрослых, в том числе среди ранее привитых, преимущественно в отдаленные от вакцинации и ревакцинации сроки, дефекты в клинической диагностике кори у первых и последующих заболевших и нарушения в организации и проведении противоэпидемических мероприятий.Заключение. На основании данных математического моделирования эпидемического процесса кори при разных сочетаниях его детерминант, для элиминации инфекции, необходимо обеспечить привитость против кори в возрасте 1 год и 6 лет в 95—97,5%. В «уязвимых» по инфекции группах поставить на обсуждение вопрос о введении плановой ревакцинации среди лиц до 50-летнего возраста с интервалом в 10 лет

Simulation mathematical modeling to forecast the incidence of measles infection in the activation of the epidemic process at the stage of elimination

The article presents the results of predicting the incidence of measles in the metropolis at the final stage of elimination of infection (according to multi-factor simulation mathematical modeling of the epidemic process). The construction of a mathematical model made it possible to determine the priority areas of infection control in modern conditions, which will ensure the epidemiological well-being of the territory for a long period.В статье представлены результаты прогноза заболеваемости корью в мегаполисе на завершающем этапе элиминации инфекции (по данным многофакторного имитационного математического моделирования эпидемического процесса). Построение математической модели позволило определить приоритетные в современных условиях направления контроля инфекции, которые позволят обеспечить эпидемиологическое благополучие территории на длительный период

Monitoring the compliance to vaccination in various categories of the population and its role in the management of communication risks.

The article presents the results of monitoring the adherence to vaccinations of different groups of the population of a large industrial city. Based on the results of the study of the attitude to vaccination, the target groups were identified, to which the vector of educational activities should be directed to overcome communicative risks.В статье представлены результаты мониторинга приверженности прививкам различных групп населения крупного промышленного города. По результатам изучения отношения к вакцинации определены целевые группы, на которые должен быть направлен вектор образовательных мероприятий для преодоления коммуникативных рисков