31 research outputs found

    HISTORY AND STATUS OF MOOSE IN THE ROSTOV REGION, RUSSIA

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    Moose (Alces alces) disappeared from the Rostov region in the 19th century due to agricultural development, hunting, and deforestation. They reappeared in the second half of the 20th century due to broad conservation measures including intensive forest management, and by the 1970s numbered >1000 and were found throughout the region. Although hunting was regulated, the population became stagnant in the 1980s presumably from trophy hunting that skewed the sex and age structure, as well as measurable wolf (Canis lupus) predation. Political reform in the 1990s further caused population decline due to increased and less regulated hunting, increased poaching without punishment, reduced predator control, decline in forest management, and large forest fires. Currently the population is at a 50-year low and occupies 1/3 of its range in the 1980s. Moose are no longer considered a commercial species, rather a species of concern

    A Randomized Trial of Convalescent Plasma in Covid-19 Severe Pneumonia

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    BACKGROUND:Convalescent plasma is frequently administered to patients with Covid-19 and hasbeen reported, largely on the basis of observational data, to improve clinical outcomes.Minimal data are available from adequately powered randomized, controlled trials. METHODS:We randomly assigned hospitalized adult patients with severe Covid-19 pneumoniain a 2:1 ratio to receive convalescent plasma or placebo. The primary outcome wasthe patient?s clinical status 30 days after the intervention, as measured on a six-pointordinal scale ranging from total recovery to death. RESULTS:A total of 228 patients were assigned to receive convalescent plasma and 105 toreceive placebo. The median time from the onset of symptoms to enrollment inthe trial was 8 days (interquartile range, 5 to 10), and hypoxemia was the mostfrequent severity criterion for enrollment. The infused convalescent plasma had amedian titer of 1:3200 of total SARS-CoV-2 antibodies (interquartile range, 1:800 to1:3200]. No patients were lost to follow-up. At day 30 day, no significant differencewas noted between the convalescent plasma group and the placebo group in thedistribution of clinical outcomes according to the ordinal scale (odds ratio, 0.83(95% confidence interval [CI], 0.52 to 1.35; P=0.46). Overall mortality was 10.96%in the convalescent plasma group and 11.43% in the placebo group, for a risk difference of −0.46 percentage points (95% CI, −7.8 to 6.8). Total SARS-CoV-2 antibodytiters tended to be higher in the convalescent plasma group at day 2 after the intervention. Adverse events and serious adverse events were similar in the two groups. CONCLUSIONS:no significant differences were observed in clinical status or overall mortality between patients treated with convalescent plasma and those who received placebo.(PlasmAr ClinicalTrials.gov number, NCT04383535.)Fil: Simonovich, Ventura A.. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; ArgentinaFil: Burgos Pratx, Leandro D.. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; ArgentinaFil: Scibona, Paula. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; ArgentinaFil: Beruto, Maria Valeria. No especifíca;Fil: Vallone, Miguel Gabriel. No especifíca;Fil: Vázquez, C.. No especifíca;Fil: Savoy, N.. No especifíca;Fil: Giunta, Diego Hernan. No especifíca;Fil: Pérez, L.G.. No especifíca;Fil: Sánchez, M.L.. No especifíca;Fil: Gamarnik, Andrea Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Ojeda, D.S.. No especifíca;Fil: Santoro, D.M.. No especifíca;Fil: Camino, P. J.. No especifíca;Fil: Antelo, S.. No especifíca;Fil: Rainero, K.. No especifíca;Fil: Vidiella, G. P.. No especifíca;Fil: Miyazaki, E. A.. No especifíca;Fil: Cornistein, W.. No especifíca;Fil: Trabadelo, O. A.. No especifíca;Fil: Ross, F. M.. No especifíca;Fil: Spotti, M.. No especifíca;Fil: Funtowicz, G.. No especifíca;Fil: Scordo, W. E.. No especifíca;Fil: Losso, M. H.. No especifíca;Fil: Ferniot, I.. No especifíca;Fil: Pardo, P. E.. No especifíca;Fil: Rodriguez, E.. No especifíca;Fil: Rucci, P.. No especifíca;Fil: Pasquali, J.. No especifíca;Fil: Fuentes, N. A.. No especifíca;Fil: Esperatti, M.. No especifíca;Fil: Speroni, G. A.. No especifíca;Fil: Nannini, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Inmunología Clinica y Experimental de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Inmunología Clinica y Experimental de Rosario; ArgentinaFil: Matteaccio, A.. No especifíca;Fil: Michelangelo, H.G.. No especifíca;Fil: Follmann, D.. No especifíca;Fil: Lane, H. Clifford. No especifíca;Fil: Belloso, Waldo Horacio. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; Argentin

    Portfolio optimization retail investor

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    The article notes that the task of the investor's risk management is to, on the one hand, as much as possible to strive to achieve the criterion of risk level, and on the other hand, in any case not exceed it. Since the domestic theory of risk management is under development, the problem of the optimal ratio of "risk-income" becomes now of particular relevance. This article discusses the different distribution areas of the private investor in order to obtain the maximum profit. The analysis showed us the overall economic and political system of the country, as well as the legislative provision of guarantees to the investor. To obtain sufficient income and reduce losses it is important to maintain the optimum value found between the amount of the investor's risk and capital transactions. Model of optimal placement of funds led to the conclusion about inexpediency strong increase in the diversification of the investment portfolio (more than 10 different types of assets in the portfolio), since it increases the complexity of its practical form, while the portfolio characteristics are improved significantly. It is concluded that it is impossible to increase revenue without increasing the risk or reduce risk without reducing income. The analysis shows that there is no single best asset portfolio. It is impossible to increase revenue without increasing the risk or reduce risk without reducing income. Possible combination of the "riskincome" will depend on the objective function. Most diversified and bringing the best return per unit of risk, is a portfolio that contains the most risky assets

    Business risks: psychological features of risk assessment in business

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    The risk analysis of the enterprise allows to avoid not only substantial material losses, but also irreplaceable damage and even bankruptcy. Risk is the probability of damage (loss, failure) due to the uncertainty of the result. Entrepreneurial risk arises from any type of entrepreneurial activity related to the production and sale of products, commodity-money and financial transactions. The purpose of the work to study the factors of particular entrepreneurial even risks. To achieve the stage of this goal, the following natural tasks were set optimally for energy resources: to reveal the concept of the most and the essence of entrepreneurial high risk; characterize the investment types of entrepreneurial risk; display the developmental features of the interaction classification of financial and operational optimal leverage and the estimated price of the total risk receives. Conclusion: Avoiding risk in business is almost impossible, but you can reduce the degree of risk. Risk management consists of predicting adverse events and taking measures to some extent preventing the negative consequences of these events

    Features of risks assessment from the position of the behavioral economy

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    The problem of ensuring economic security of the enterprise is undoubtedly actual now as safety of the organization is directly connected with efficiency of functioning of the managing subject. In addition, in Russia there is an acute problem of unfair competition in the market, criminalization of certain segments that force enterprises to take certain measures. The analysis of risks of the enterprise allows to avoid not only essential material losses, but also irreparable damage and even bankruptcy. Economic security is an essential element of business operation and is a complex system of threat management inherent in business activities throughout the life cycle of the enterprise. It ensures achievement of business goals in conditions of competition and economic risk. The aim of the work is to study the main aspects of economic security of the enterprise in the Russian Federation. The object of the study of this work is the enterprise, and the subject – its economic security. The methods of cognition, retrospective and documentary analysis, economic and mathematical modeling, as well as synthesis, generalization, systematization were used as methods in the performance of the work. The efficiency of the enterprise depends not only on internal factors, but also on external: political, economic, geopolitical, environmental, social. The study of their complex influence on the functioning of an organization is the basis of ensuring the economic security of the company. In order to ensure the economic security of the organization, its stable operation and a stable position in the market, it is necessary to manage risks in order to minimize them, as well as mandatory measures to reduce the consequences and losses from risks

    Economic and psychological aspects of estimation of risks of securitization of banking assets

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    The article describes the problems of introduction of asset securitization in Russia in terms of standardization of processes in the field of risk management and the establishment of risk management profession considered the key principles and stages of financial risk management, asset securitization model are studied. The attractiveness of securitization is the company's financing capabilities by transferring assets from their balance sheets, or borrowing against those assets to refinance the original loan at a fair market rate. The possibilities of a securitization, its advantages and disadvantages. Particular attention is paid to the securitization crisis in the global financial market. The positive aspects of securitization include: the possibility of financing through the sale of assets to a specially created legal entity; serious impetus to improve the efficiency of the banking sector; opens up direct access to the global financial market; reduces all funding costs; limits credit risk to asset risk; improves the balance sheets of banks, corporations; promotes access to various sources of funding; reduction of the cost of attracted financing; optimization of the structure of the investment portfolio; securitized assets are less subject to event risk. In Russia, the securitization market is growing at a high rate and also has potential in its existence. But since the legal system is underdeveloped in our country, most likely it is the main reason that the ratings of securitization transactions are limited. The upper limit of the rating in the end, perhaps, will be limited by event risks

    Social well-being of people and the strategy of innovative development of the enterprise

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    The article describes the problems of introducing innovations in Russia from the point of view of the development of standardization processes in the field of risk management and the psychological development of the profession of a risk manager. The features of the development of innovative development of the enterprise, taking into account the state of social well-being of people, are considered. Innovation strategy, above all, implies strategic management, as an activity of forming and implementing the mission, the main goals of the company, which guarantee its development in an environment of constant competition and instability. Strategic management is an ongoing process of selecting and executing the organization’s activities, taking into account the social well-being of employees, based on predicting changes in the external environment, predicting problems based on expert decisions aimed at maintaining the company's created advantage

    Risk management with regard to the effect of human factors

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    One of the most important components in today's market is a party decision-making under risk and uncertainty. The first step in making such decisions - to adequately process the information for estimating the future value of assets and the interests of investors probabilities of each particular scenario. The next step is to choose the alternative that has the greatest utility for the investor. Each of these steps is associated with numerous difficulties, the roots of which stem from the specificity of human psychology. The article notes that an integral part of professional risk management is to identify the nature of the object of management in the sphere of economy. Since the domestic theory of risk management is being formed-tion, the problem of a clear comprehensive definition of “risk” becomes now particularly relevant-ness. The article deals with along with economic forecasts of the risks and the human factor in decision-tions solutions. Along with economic forecasts, the report focuses on psychological problems and attempts to take into account the human factor in decision-making at the forecast of risks arising in the company. The important parameters are the status and position of the person in the society, as well as its social well-being. Analysis Meto-ing risk assessment concluded that the need to develop new models and methods of risk management, taking into account the four-lovecheskogo factor. Economic psychology and its applications have developed into a special branch of economic knowledge - the so-called behavioral economics, which surely develops a wide range of economic issues - from the actual theory of individual behavior to the problems of public choice and the financial economy. The most interesting item is the fact that the concept of “risk” is considered from different points of view - as the economist-mathematician with the position, and a psychologist

    Features of risks assessment from the position of the behavioral economy

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    Subject. The article is devoted to the actual topic of modernity – risk management in terms of behavioral economics. Since the domestic theory of risk management is under development, the problem of a clear comprehensive definition of "risk" becomes now of particular relevance. Goals. The study of the mechanism of risk management in the economy from the perspective of psychology. Tasks. Review the main concepts of risk management; to study its components in business; reflect the system and principles of risk management. Methodology. Methods of cognition, retrospective and documentary analysis, as well as synthesis, generalization, systematization were used as methods for performing the work. Results. The cognitive and psychophysical factors that determine the value of choice under risk conditions, proposed by Israeli scientists Daniel Kahneman and Amos Tversky, which contributed to a fundamental breakthrough in the understanding of human behavior under uncertainty and created an economic theory of prospects, were studied. Application area. Risk management from the perspective of economic psychology. Conclusions. The psychological foundations of decision-making in risky situations play a fundamental role. In the risk there is always a certain subjective value, depending on the individual subjective assessment of probability. It is established that in most cases individuals are not prone to risk, and as a rule, an equal change in benefits and losses has unequal value for the subject, so losses, other things being equal, are experienced by the person making the decision, with great emotional costs. There is a direct relationship between the dynamics of the level of risk and the dynamics of profitability, namely: the higher the average profitability of a particular operation, the higher the risk associated with it. The level of threats in the market today is higher than the level of potential profit
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