Collision trajectories and regularisation of two-body problem on S2S^2

In this paper, we investigate collision orbits of two identical bodies placed on the surface of a two-dimensional sphere and interacting via an attracting potential of the form $V(q)=-\cot(q)$, where $q$ is the angle formed by the position vectors of the two bodies. We describe the $\omega$-limit set of the variables in the symplectically reduced system corresponding to initial data that lead to collisions. Furthermore we provide a geometric description of the dynamics. Lastly, we regularise the system and investigate its behaviour on near collision orbits. This involves the study of completely degenerate equilibria and the use of high-dimensional non-homogenous blow-ups

An analysis of trends and determinants of health insurance and healthcare utilisation in the Russian population between 2000 and 2004: the 'inverse care law' in action

BACKGROUND: The break-up of the USSR brought considerable disruption to health services in Russia. The uptake of compulsory health insurance rose rapidly after its introduction in 1993. However, by 2000 coverage was still incomplete, especially amongst the disadvantaged. By this time, however, the state health service had become more stable, and the private sector was growing. This paper describes subsequent trends and determinants of healthcare insurance coverage in Russia, and its relationship with health service utilisation, as well as the role of the private sector. METHODS: Data were from the Russia Longitudinal Monitoring Survey, an annual household panel survey (2000-4) from 38 centres across the Russian Federation. Annual trends in insurance coverage were measured (2000-4). Cross-sectional multivariate analyses of the determinants of health insurance and its relationship with health care utilisation were performed in working-age people (18-59 years) using 2004 data. RESULTS: Between 2000 and 2004, coverage by the compulsory insurance scheme increased from 88% to 94% of adults; however 10% of working-age men remained uninsured. Compulsory health insurance coverage was lower amongst the poor, unemployed, unhealthy and people outside the main cities. The uninsured were less likely to seek medical help for new health problems. 3% of respondents had supplementary (private) insurance, and rising utilisation of private healthcare was greatest amongst the more educated and wealthy. CONCLUSION: Despite high population insurance coverage, a multiply disadvantaged uninsured minority remains, with low utilisation of health services. Universal insurance could therefore increase access, and potentially contribute to reducing avoidable healthcare-related mortality. Meanwhile, the socioeconomically advantaged are turning increasingly to a growing private sector

Emergence of Haemophilus influenzae Strains in the Nasopharynx of Children with Tuberculosis

Being rigorously studied, epidemiology aspects of Haemophilus influenzae carriage are still remaining unclear. Especially it concerns such a group as children with low immune status and also such group as children with tuberculosis infection. We examined nasopharyngeal tract of children with tuberculosis infection in remission and checked how often these children are carriers of Haemophilus influenzae strains. Also we gained microbiology characteristics of the isolates and defined the clinical significance of H. influenzae carriage in development of opportunistic infections in children with the tuberculosis infection

Ethnogenetic Relations Between the Population of the Middle Sarmatian Time in the Eastern European Steppes

Introduction. The author of the article shows the problem of ethnogenetic relations between the population of the Middle Sarmatian time (1st – the first half of the 2nd c. AD) of the Lower Volga region and the Lower Don. Methods and materials. The author analyzes craniological series of more than 400 skulls for solving this problem. The author uses digital information on the synchronous population (53 male and 47 female craniological series) to identify the ancestor-descendant relationships. The paper shows the comparative analysis carried out with the help of discriminate analysis by the canonical method. The results of the analysis are processed by the multidimensional non-metric scaling and cluster analysis to visualize on the Mahalanobis proximity distance matrix. Analysis. The results of the comparative analysis allow revealing the significant morphological similarity of the Middle Sarmatian territorial groups of the Lower Volga and the Lower Don. This similarity can be primarily explained by the commonality of the Europeoid genetic substrate dating back to the population of the Early Sarmatian time in these regions. In addition to this component, various Eastern components participated in the formation of the anthropological type of the Middle Sarmatian population. In the process of migration and integration these components defined the population’s image of the 1st – the first half of the 2nd centuries BC as the morphological complex. Results. The results of the comparative analysis suggest at least two Eastern components. The first component has mixed Mongoloid-Caucasoid features and its origin is associated with the population of Kazakhstan of the 3rd – 1st centuries BC (presumably with kangyu population) and the Southern Siberia (Pazyryk and Kamenskaya cultures). The second one also has the South Siberian origin (Tagar-tesinsk), but its racial type is defined as a type of long-headed Europeoids

Back to live: Returning to in-person engagement with arts and culture in the Liverpool City Region

On July 19th 2021, the UK government lifted the COVID-19 restrictions that had been in place since March 2020, including wearing masks, social distancing, and all other legal requirements. The return to in-person events has been slow and gradual, showing that audiences are still cautious when (and if) they resume engaging in arts and culture. Patterns of audience behavior have also changed, shifting toward local attendance, greater digital and hybrid engagement, and openness to event format changes. As the arts and cultural industry recovers from the pandemic, it is important to adopt an audience-oriented approach and look at the changing patterns of engaging in arts and culture. This study aims to better understand the impact of the pandemic on the patterns of cultural and arts engagement. Eight qualitative interviews were conducted to explore the changes in arts and cultural engagement since the restrictions were lifted, focusing particularly on the audience’s experiences of returning to in-person arts and cultural events in the Liverpool City Region (LCR). Using framework analysis, three themes were identified from the data: The new normal: reframing pre-pandemic and pandemic experiences of arts and culture, Re-adjusting to in-person provision, and Moving forward: online and blended provision. The findings show that the pandemic altered the ways that people engage in arts and culture. The “new normal,” a blend of pandemic and pre-pandemic experiences, illustrates how the pandemic has highlighted and reconfigured the importance of arts and culture, in terms of personal and cultural identity. Resuming in-person engagement after a long break, participants noted that they were able to feel more like themselves again. Arts and culture were perceived to be beneficial in rebuilding personal resilience and confidence. Engaging in arts and culture, following the isolating experience of the pandemic, has also helped participants feel reconnected to others through their shared experiences. Finally, the findings suggest that online provision remains vital for many, ensuring wider inclusivity, particularly for vulnerable audiences. At the same time, it is important to acknowledge the barriers to online inclusion and the possibility of this resulting in a growing digital divide

НОВЫЕ ГИБРИДЫ F1 КАПУСТЫ БЕЛОКОЧАННОЙ ОТ КОМПАНИИ «СИНГЕНТА»

Syngenta has been for many years in Russian agricultural market, and presented annually new hybrids and cultivars of vegetable crops, as well as plant protection means against pathogens and pests. This year we have released new hybrids of white head cabbage that have well passed all field trials and have been approved in practice under different conditions. These are ‘Jatodor F1’, ‘Bolikor F1’, ‘Storidor F1’, ‘Elastor F1’ and ‘Lexicon F1’. Компания «Сингента» ежегодно представляет новые гибриды и сорта овощных культур, а также средства защиты от вредителей и болезней. В этом году мы представляем вниманию новые гибриды капусты белокочанной, которые с достоинством выдержали испытания не только на сортоиспытательных участках, но и опробованы на практике в различных условиях выращивания: Джетодор F1, Боликор F1, Сторидор F1, Эластор F1 и Лексикон F1.

Modeling of the integrated interaction of the innovation process subjects

Within the scope of the presented article, the category "integration" is used as development process, leading to a new type of innovative process subject interaction with the purpose of growth in competitiveness, uncertainty reduction of innovative product commercialization, cost reductionyesBelgorod State Universit

Ecological and Physiological Assessment of Animal Anesthesia Methods

The use of pharmaceuticals is indispensable in everyday medical practice. The patient’s life sometimes depends on the right dosages and the chosen method of administration of the drug, therefore, for the successful provision of assistance to the animal, the specialist should become familiar with pharmacokinetics and pharmacodynamics of the drugs used to prevent undesirable side effects and to reduce the risk of adverse outcome of the disease. Currently, many veterinary enterprises have been opened in Russia, a considerable number of them are private veterinary clinics, where daily surgical interventions with the use of anesthetics are carried out. Depending on the equipment they use different methods of anesthesia of animals – inhalation, non-inhalation or a combined method. The article deals with pharmacokinetic factors in the field of veterinary anesthesiology, its peculiarities associated with different methods of introduction of different groups of anesthetics, which have a similar effect on the body when injected into anesthesia. Moreover, depending on the method of introduction, their absorption into the body varies, the depth of anesthesia changes and the time of exit from it is different