Research Progress on Pathogenesis and Intervention Measures of Depression

With the wide spread of the epidemic, the long-term closed lifestyle and the sharp reduction of physical activities, many people have mental health problems such as panic, anxiety and depression. At present, there are few studies on the effect of exercise on depression. Therefore, the study selected exercise intervention therapy and other intervention methods to evaluate the intervention effect of depression, and explored the effect of exercise intervention by evaluating depression scale and effective indicators. Hope this can provide a new idea for exercise intervention as an adjunctive therapy for depression on drug treatment.

Institutional Economics: Problems and Prospects for the Analysis of Developing Countries

The article examines the population explosion and its consequences for developing countries in the 21 century. As a result of compulsory vaccination of the entire adult and child population in Asia, Africa and Latin America, a sharp reduction in mortality and an increase in overall life expectancy were achieved. As a result, although fertility in these countries was still governed by the laws of pre-industrial society, mortality began to be governed by the laws of post-industrial society. In the second half of the twentieth century, a rapid population growth began, which will continue throughout this century. This led to significant changes in the structure of the world's population: the share of countries in Asia, Africa and Latin America has increased sharply. As a result, by 2100, of the 20 largest countries in the world by population, 19 will be countries of Asia, Africa and Latin America. Demographic growth has exacerbated the problem of catching-up development and forced these countries to look more energetically for solutions to the problem of social inequality. In this regard, the recommendations of institutionalists, starting with G. Myrdal, turned out to be extremely in demand.

National interest may require distributing COVID-19 vaccines to other countries

As immunization campaigns are accelerating, understanding how to distribute the scarce doses of vaccines is of paramount importance and a quantitative analysis of the trade-offs involved in domestic-only versus cooperative distribution is still missing. In this study we use a network Susceptible-Infected-Removed (SIR) model to show circumstances under which it is in a country’s self-interest to ensure other countries can obtain COVID-19 vaccines rather than focusing only on vaccination of their own residents. In particular, we focus our analysis on the United States and estimate the internal burden of COVID-19 disease under different scenarios about vaccine cooperation. We show that in scenarios in which the US has reached the threshold for domestic herd immunity, the US may find it optimal to donate doses to other countries with lower vaccination coverage, as this would allow for a sharp reduction in the inflow of infected individuals from abroad.

A new perspective and explanation for the formation of plasmaspheric shoulder structures

Over the hours of 05:00–09:00 UT on 8 June 2001, the extreme ultraviolet (EUV) instrument on board the IMAGE satellite observed a shoulder-like formation in the morning sector and a post-noon plume-like structure. The plasmapause formation is simulated using the test particle model (TPM), based on a drift motion theory, which reproduces various plasmapause structures and evolution of the shoulder feature. The analysis indicates that the shoulder is created by sharp reduction and spatial non-uniformity in the dawn–dusk convection electric field intensity. The TPM-modeled event is found to develop an initial pre-dawn asymmetric bulge that becomes a shoulder as a result of increased “corotation” rate with an increasing L-shell that is preceded by localized outward convection. The shoulder structure rotates sunward and develops into a single- or double-plume structure during an active time period in simulation.

Evaluation of the Effect of Blades Number on the Performance of Pico Wind Turbines

In this paper, the influence of blades number on the performance of pico wind turbine was investigated by using a small-motorized axial DC fan with a rated power of 4W. Fixed streaming air blower was used as a source of wind. Varying in wind speed was accomplished by changing the distance from the blower. A resistor equals to the turbine internal resistance was utilized as a load to collect the electrical power across the load at various wind speeds and for fans of different blades (1, 2, and 5). Values of the cut-in and cut-out speeds were extracted from the power plot. Rated power was recorded, as well. The results have shown that the rated power generated by turbine has decreased due to the reduction of blades number (i.e., reduction in solidity) from 2.6W for a 5-bladed turbine to 0.665W for a 2-bladed turbine and to 0.13W for a 1-bladed turbine. Moreover, the cut-in speed (initial electrical generating speed) has increased from 4.9m/s for 5-bladed to 8m/s for 2-bladed, then to 19.15m/s for 1-bladed. These results are explained by the balancing problems during rotation (polar asymmetrical rotor), and it is seen that the reduction of blades has made a sharp reduction in power coefficient.

INTERIM MEASURES UNDER PARAGRAPH 10 OF ART. 101 OF THE TAX CODE OF THE RUSSIAN FEDERATION: APPLICATION PRACTICE

The purpose of tax audits is to verify that the taxpayer complies with the norms of tax legislation. As a rule, in conditions of instability, constantly changing tax legislation, taxpayers violate the norms of the Tax Code of the Russian Federation. In this regard, as a rule, each tax audit ends with additional charges to the taxpayer of taxes, penalties and penalties, which negatively affect their financial position. At the same time, according to the Federal Tax Service of Russia, with a sharp reduction in the number of ongoing on-site tax audits, the amount of additional charges for one on-site audit increases сonstantly: in 2016 – 13.6 million rubles, in 2017 – 15.7 million rubles, 2018 – 22.2 million rubles, 2019 – 33.5 million rubles. The tax authority, by charging additional taxes and penalties to the taxpayer, is interested in collecting them. The current Tax Code of the Russian Federation makes it possible to enforce the decision by taking measures in accordance with paragraph 10 of Art. 101 of the Tax Code of the Russian Federation, the application of which in practice raises many issues. The article considers the practice of applying interim measures.

Corporate Liquidity and Solvency in Europe during COVID-19

The spread of COVID-19, containment measures, and general uncertainty led to a sharp reduction in activity in the first half of 2020. Europe was hit particularly hard—the economic contraction in 2020 is estimated to have been among the largest in the world—with potentially severe repercussions on its nonfinancial corporations. A wave of corporate bankruptcies would generate mass unemployment, and a loss of productive capacity and firm-specific human capital. With many SMEs in Europe relying primarily on the banking sector for external finance, stress in the corporate sector could easily translate into pressures in the banking system (Aiyar et al., forthcoming).

Non-Peutz–Jeghers syndrome-associated ovarian sex cord tumor with annular tubules treated by radiotherapy: a case report and literature review

There are no standard treatment options for metastatic and recurrent non-Peutz–Jeghers syndrome (PJS)-associated sex cord tumor with annular tubules (SCTAT). The effects of chemotherapy and/or radiotherapy are still not well-defined. Herein, we present a case of a metastatic and recurrent non-PJS-associated SCTAT showing high serum estradiol and progesterone concentrations after surgery and chemotherapy. Radiotherapy (50 Gy/25 fractions) triggered a sharp reduction in the sizes of the metastatic and recurrent masses, and estradiol and progesterone concentrations. Accordingly, we consider that radiotherapy might be effective and safe for metastatic and recurrent SCTAT. The roles of radiotherapy in non-PJS SCTAT should be further validated in large-scale prospective clinical trials.

Building an algorithm for attracting consumers of University educational services based on benchmarking technologies

Presented is an algorithm for attracting consumers of educational services to higher education institutions based on benchmarking technologies, tracking the needs and trends in modern education in a specific market in a given period of time. The scientific novelty lies in development and formulation of the concept of “real and virtual criteria for choosing educational services”, that form preferences and needs of potential applicants, which should be based on the study and generalization of experience of career guidance available at the university. The study was conducted on the basis of Rostov state university of economics in the format of career guidance work in the process of questioning applicants and their parents, monitoring available information of the admissions committee. The relevance is confirmed by existing non-standard socio-economic, communication and technical conditions for obtaining educational services, as well as the specifics of activities of a particular university and a sharp reduction in potential applicants in certain areas of educational standard. The results reflected criteria of attractiveness of the university for applicants, as well as their view on motives, incentives and evaluation of the university, educational services, prospects for gaining experience and skills in the specialty. Generalized results of the study were discussed in August 2020 and used by the author in development of a career guidance project to attract consumers of educational services of the university in 2021.