POPULATION NUMBER OF THE STAG BEETLE LUCANUS CERVUS (L.) OF A FOREST IN THE VORONEZH REGION, CALCULATED FROM FOOD REMAINS OF THE SHRIKE-ZHULAN LANIUS COLLURIO (L.)

2019 ◽  
Vol 1 (1) ◽  
pp. 28-30
2006 ◽  
pp. 75-92 ◽  
Author(s):  
S. Moiseev

The number of classical banks in the world has reduced. In the majority of countries the number of banks does not exceed 200. The uniqueness of the Russian banking sector is that in this respect it takes the third place in the world after the USA and Germany. The paper reviews the conclusions of the economic theory about the optimum structure of the banking market. The empirical analysis shows that the number of banks in a country is influenced by the size of its territory, population number and GDP per capita. Our econometric estimate is that the equilibrium number of banks in Russia should be in a range of 180-220 units.


2017 ◽  
Vol 7 (4) ◽  
pp. 65-72
Author(s):  
V. N. Shmagol' ◽  
V. L. Yarysh ◽  
S. P. Ivanov ◽  
V. I. Maltsev

<p>The long-term population dynamics of the red deer (<em>Cervus elaphus</em> L.) and European roe deer (<em>Capreolus</em> <em>capreolus</em> L.) at the mountain and forest zone of Crimea during 1980-2017 is presented. Fluctuations in numbers of both species are cyclical and partly synchronous. Period of oscillations in the population of red deer is about 25 years, the average duration of the oscillation period of number of roe deer is 12.3 years. During the fluctuations in the number the increasing and fall in population number of the red deer had been as 26-47 %, and roe deer – as 22-34 %. Basing on the dada obtained we have assumed that together with large-scale cycles of fluctuations in population number of both red deer and roe deer the short cycles of fluctuations in the number of these species with period from 3.5 to 7.5 years take place. Significant differences of the parameters of cyclical fluctuations in the number of roe deer at some sites of the Mountainous Crimea: breaches of synchronicity, as well as significant differences in the duration of cycles are revealed. The greatest deviations from the average values of parameters of long-term dynamics of the number of roe deer in Crimea are noted for groups of this species at two protected areas. At the Crimean Nature Reserve the cycle time of fluctuations of the numbers of roe deer was 18 years. At the Karadag Nature Reserve since 1976 we can see an exponential growth in number of roe deer that is continued up to the present time. By 2016 the number of roe deer reached 750 individuals at a density of 437 animals per 1 thousand ha. Peculiarity of dynamics of number of roe deer at some sites proves the existence in the mountain forest of Crimea several relatively isolated groups of deer. We assumed that "island" location of the Crimean populations of red deer and European roe deer, their relatively little number and influence of permanent extreme factors of both natural and anthropogenic origination have contributed to a mechanism of survival of these populations. The elements of such a mechanism include the following features of long-term dynamics of the population: the reduction in the period of cyclic population fluctuations, while maintaining their amplitude and the appearance of additional small cycles, providing more flexible response of the population to the impact of both negative and positive environmental factors. From the totality of the weather conditions for the Crimean population of roe deer the recurring periods of increases and downs in the annual precipitation amount may have relevance. There was a trend of increase in the roe deer population during periods of increasing annual precipitation.</p>


Author(s):  
Kolyagina N.M. ◽  
Berezhnova T.A. ◽  
Klepikov O.V. ◽  
Kulintsova Ya.V.

Currently, and over the past decade, intensive research is being conducted in the field of organizational, preventive and therapeutic work with weather-sensitive and weather-dependent patients suffering from cardiovascular pathology. One of the most discussed issues in practical medicine is the application of climate conditions, with a fixed frequency and time of exposure. Conditions of influence of climatic factors, in some cases, can exceed the limits of the norm and, accordingly, have a pathological effect on the functional state of a person. Thus, we used data from statistically reliable results of 928 questionnaires processed and analyzed, reflecting the medical and social characteristics of patients with cardiovascular pathology. Direct results were evaluated by analyzing changes in the dynamics of indicators. According to a questionnaire survey, 62% of patients who have chronic diseases and seek medical help for diseases of the cardiovascular system believe that weather factors have a significant impact on their health. of the patients who do not have chronic diseases, 38% gave positive answers to the question about the weather sensitivity of their health. As part of the pilot project to create a system of long-term care for elderly and disabled citizens in the Voronezh region, patients are informed about the sources of obtaining specialized medical weather forecasts in the region; interaction between the parties is organized to conduct sanitary and educational work; medical examinations are organized and conducted; training sessions are organized for relatives of citizens who have lost the ability to self-service. Further organizational, preventive and therapeutic work with weather-sensitive and weather-dependent patients in the Voronezh region is characterized by an increase in the quality of medical care for patients with cardiovascular diseases.


2020 ◽  
Vol 54 (2) ◽  
pp. 337-353
Author(s):  
D. A. Chudaev ◽  
I. Jüttner

The diversity of the genus Navicula including 29 species, one species new to science (Navicula trophicatrixoides Chudaev, sp. nov.), one new to the flora of Russia (N. alineae), and 15 species new for the Voronezh Region, is documented from waterbodies located in the museum-reserve “Divnogorye” and areas in its vicinity. It is supposed that N. antonii as currently understood represents a complex with at least two semicryptic species. The most frequent taxa in the studied materials are Navicula cf. antonii, N. capitatoradiata and N. cryptotenella. The majority of the species found prefer waters with higher electrolyte content.


Author(s):  
Евгений Николаевич Коровин ◽  
Юлия Викторовна Сиромашенко ◽  
Владимир Николаевич Коровин

В статье приведены анализ и прогнозирование основных статистических показателей, характеризующих развитие эпидемической ситуации по вирусу иммунодефицита человека (ВИЧ) в Воронежской области, а именно распределение по путям инфицирования. В качестве данных для прогнозирования были использованы показатели заболеваемости прошлых лет. Применяемый метод прогнозирования основан на методах экстраполяции. Все методы экстраполяции объединяет то, что они проецируют на будущее ход событий, сложившийся в прошлом. При этом не устанавливаются никакие причинные связи - принимается, что действующие в прошлом силы без существенных изменений будут действовать и в будущем. При формировании прогнозов с помощью экстраполяции исходят из статистически складывающихся тенденций изменения тех или иных количественных характеристик объекта за определённый период. Прогнозирование заболеваемости ВИЧ осуществляется с помощью метода экспоненциального сглаживания с использованием линейного тренда и выбором оптимальных параметров сглаживания. Трендом называют аналитическое или графическое представление изменения переменной во времени, полученное в результате выделения регулярной (систематической) составляющей динамического ряда. Основной целью анализа и прогнозирования является выявление основных тенденций по распространению ВИЧ-инфекции, определение основных путей инфицирование, а также выделение ключевых групп риска среди населения Воронежской области The article analyzes and predicts the main statistical indicators that characterize the development of the epidemic situation of human immunodeficiency virus (HIV) in the Voronezh region, namely, the distribution by infection pathways. Previous years ' morbidity rates were used as data for forecasting. The applied forecasting method is based on extrapolation methods. What all extrapolation methods have in common is that they project the course of events in the past into the future. At the same time, no causal relationships are established - it is assumed that the forces operating in the past will continue to operate in the future without significant changes. When forming forecasts using extrapolation, they are based on statistically developing trends in changes in certain quantitative characteristics of an object over a certain period. Predicting the incidence of HIV is carried out using the exponential smoothing method using a linear trend and choosing the optimal smoothing parameters. A trend is an analytical or graphical representation of changes in a variable over time, resulting from the allocation of a regular (systematic) component of a dynamic series. The main goal of the analysis and forecasting is to identify the main trends in the spread of HIV infection, identify the main routes of infection, and identify key risk groups among the population of the Voronezh region


2020 ◽  
Author(s):  
Reuven Yosef ◽  
ISWG International Shrike Working Group ◽  
David Christie
Keyword(s):  

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