scholarly journals Mathematical Modeling of Dynamics of the Number of Specimens in a Biological Population Under Changing External Conditions on the Example of the Burzyan Wild-Hive Honeybee (Apismellifera L., 1758)

2017 ◽  
Vol 12 (1) ◽  
pp. 224-236
Author(s):  
Л.С. Ибрагимова ◽  
L.S. Ibragimova
Keyword(s):  
Mathematical Modeling ◽  
Model Parameters ◽  
Natural Factors ◽  
Biological Population ◽  
Ricker Model ◽  
Republic Of Bashkortostan ◽  
External Conditions ◽  
The Republic ◽  
Modeling Of Dynamics ◽  
Periodic Changes

The usage of a non-autonomous discrete model (Ricker model) for describing the dynamics of a biological population is considered. It is shown that in case of periodic changes in parameters, the model can be reduced into equivalent autonomous system. The problems of determining the model parameters in a situation where these parameters depend on time are discussed. As an application, the problem of mathematical modeling of the dynamics of the number of families of the natural population of the Burzyan wild-hive honeybee living on the territory of the Republic of Bashkortostan is considered. The results convincingly demonstrate the fact that the dynamics of the Burzyan Wild-Hive Honeybee is significantly influenced by a combination of natural factors. For example the sum of the precipitation in February is particularly significant here (in particular, the increase in precipitation affects the number of bees negatively) and the temperature values in March, April and June.

scholarly journals Cultural and Language Effects of Migration: The Case of Migrants and Chuvash People in the Republic of Bashkortostan (Russia)

2021 ◽  
Vol 8 (3) ◽  
pp. 134
Author(s):  
Olga Kobzeva ◽  
Elena Kolomoets ◽  
Artem Lukyanets ◽  
Larisa Korotaeva
Keyword(s):  
Mathematical Modeling ◽  
Russian Federation ◽  
Recipient Country ◽  
Federal State ◽  
Cultural Changes ◽  
Mass Migration ◽  
Republic Of Bashkortostan ◽  
The World ◽  
The Republic ◽  
The Impact

According to the World Migration Report there are 11.6 million migrants in Russian Federation, the majority of which (43%) have come from countries of Central Asia: Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The study aims to evaluate the impact of migration on both migrant and host cultures to establish the changes in native languages and cultures of migrant ethnic groups in the Russian Federation under the influence of a single state language. For the study, the authors used statistical data of the Russian Federal State Statistics Service, findings of the 1920-2010 censuses, and mathematical modeling of cultural changes based on differential equation. The case of Chuvash people living in the Republic of Bashkortostan was explored by the mathematical modeling method to identify the alien cultural influence on the recipient country, with a particular emphasis on changes in the local language. The direct correlation has been found between the extent to which the migrant community preserve their homeland traditions at a new place and the probability of shifts in the host country’s culture. The preservation of migrants’ native language in everyday living demonstrates a high probability of replacing the host language by the migrant one in their environment (the probability is 5-10% higher than the expected level for 7 districts and 11 to 50% - in 8 districts out of 26 studied). The results may have practical use in evaluating the probability of major cultural shifts across the world as the international mass migration increases in volume and scope.

The dynamics of demographic indices in the Republic of Bashkortostan

2020 ◽  
Vol 28 (4) ◽  
Author(s):  
Victorov V. V. ◽  
◽  
Sharafutdinov M. A. ◽  
Mukhamadeeva O. R. ◽  
Pavlova M. Yu. ◽  
...  
Keyword(s):  
Republic Of Bashkortostan ◽  
Demographic Indices ◽  
The Republic

Irrigation regime and water consumption of potatoes in the Republic of Bashkortostan, depending on the reclamation condition of lands

2020 ◽  
Vol 0 (6) ◽  
pp. 13-19
Author(s):  
Guzel Gumerova ◽  
Georgiy Gulyuk ◽  
Dmitry Kucher ◽  
Anatoly Shuravilin ◽  
Elena Piven
Keyword(s):  
Water Consumption ◽  
Weather Conditions ◽  
Growing Season ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Total Water ◽  
Total Water Consumption ◽  
Republic Of Bashkortostan ◽  
Irrigated Lands ◽  
The Republic

Data of long-term researches (2015–2018) in southern forest-steppe zone of the Republic of Bashkortostan, is justified theoretically and experimentally the mode of irrigation of potatoes on leached chernozems of unsatisfactory, satisfactory and good ameliorative condition of irrigated lands. For the growing periods of potatoes with different heat and moisture supply, the number of watering, the timing of their implementation, irrigation and irrigation norms are established. On lands with unsatisfactory meliorative state the number of irrigation depending on weather conditions of potato vegetation period varied from 0 to 3 (1.5 on average) with average irrigation norm – 990 m3/ha. With satisfactory meliorative state of lands the number of irrigation on average increased from 0 to 4 (2.3 on average) with irrigation norm – 1305 m3/ha. On lands with good meliorative state the number of irrigation was the highest – from 1 to 5 (3 on average) with average irrigation irrigation norm is 1653 m3/ha. It was noted that in the dry periods of potato vegetation the greatest number of watering was carried out (3–5 watering), and in the wet periods (2017) watering was not carried out except for the area with a good reclamation state, where only one irrigation was carried out by the norm of 550 m3/ha. Water consumption of potato was studied in dynamics as a whole during the growing season and the months of the growing season depending on weather conditions of vegetation period and land reclamation condition of irrigated lands, as well as in the control (without irrigation). The lowest total water consumption was in the area without irrigation and averaged 226.8 mm. In irrigated areas, its values increased to 319-353.4 mm. The average daily water consumption varied from 2.12 to 3.3 mm. The highest rates of potato water consumption were observed in June and July, and the lowest – in May and August. In the total water consumption of potatoes on the site without irrigation, the largest share was occupied by atmospheric precipitation and in addition to them the arrival of moisture from the soil. Irrigation water was used in irrigated areas along with precipitation, the share of which was 30.2–46.1 %.

Hygienic assessment of learning environment conditions (by the example of higher educational institutions of the city of Ufa)

2020 ◽  
Vol 99 (4) ◽  
pp. 405-411
Author(s):  
Elena Ju. Gorbatkova
Keyword(s):  
Ionizing Radiation ◽  
Educational Institutions ◽  
Higher Educational Institutions ◽  
Factors Affecting ◽  
Republic Of Bashkortostan ◽  
Average Relative Humidity ◽  
Higher Educational ◽  
The Republic ◽  
And Performance ◽  
The City

Introduction. The important factors affecting health and performance of young people are the conditions of education, in particular, a comfortable microclimate in the classrooms of higher educational institutions. Materials and methods. In view of the urgency of this problem, an analysis was made of the microclimate parameters of educational organizations of different profiles (Ufa city, the Republic of Bashkortostan). 294 classrooms were studied in 22 buildings of 4 leading universities in Ufa. A total of 3,822 measurements were taken to determine the parameters of the microclimate. The analysis of ionizing radiation in the aerial environment of classrooms. There was performed determination of radon and its affiliated products content. In order to assess the conditions and lifestyle of students of 4 higher educational institutions of the city of Ufa, we conducted an anonymous survey of 1,820 students of I and IV years of education. Results. The average temperature in the classrooms of all universities studied was 23.9±0.09 C. The average relative humidity in all classrooms was 34.2 ± 0.42%. Analysis of ionizing radiation (radon and its daughter products decay) in the aerial environment of the classrooms and sports halls located in the basement determined that the average annual equivalent equilibrium volumetric activity of the radon daughter products (EROA ± Δ222Rn) ranged from 28 ± 14 to 69 ± 34.5 meter, which meets the requirements established by SanPiN. Conclusion. The hygienic assessment of the microclimate parameters of educational institutions of various profile revealed a number of deviations from the regulated norms. The results indicate the need to control the parameters of the microclimate, both from the administration of universities, and from the professors. According to the results of the study, recommendations were prepared for the management of higher educational institutions in Ufa.

Sign in / Sign up

Export Citation Format

Share Document