5 research outputs found
Contribution of students’ psychological characteristics and level of digital learning environment adaptation to their quality of life
No full textDirect input of monitoring data into a mechanistic ecological model as a way to identify the phytoplankton growth-rate response to temperature variations
No full textAbstract We present an approach (knowledge-and-data-driven, KDD, modeling) that allows us to get closer to understanding the processes that affect the dynamics of plankton communities. This approach, based on the use of time series obtained as a result of ecosystem monitoring, combines the key features of both the knowledge-driven modeling (mechanistic models) and data-driven (DD) modeling. Using a KDD model, we reveal the phytoplankton growth-rate fluctuations in the ecosystem of the Naroch Lakes and determine the degree of phase synchronization between fluctuations in the phytoplankton growth rate and temperature variations. More specifically, we estimate a numerical value of the phase locking index (PLI), which allows us to assess how temperature fluctuations affect the dynamics of phytoplankton growth rates. Since, within the framework of KDD modeling, we directly include the time series obtained as a result of field measurements in the model equations, the dynamics of the phytoplankton growth rate obtained from the KDD model reflect the behavior of the lake ecosystem as a whole, and PLI can be considered as a holistic parameter
Predator functional response in mathematical models compared to the zooplankton functional response in a lake ecosystem
No full textThe problem of predator interference and the associated choice between two types of functions describing the functional response in mathematical modeling of population dynamics are widely discussed. It is the choice between predator-dependent and prey-dependent functions. Here we present the results of comparing a wide range of the functions describing the functional response, which are used in modeling trophic interactions, with the functional response that is characteristic of interactions between phytoplankton and zooplankton populations in the ecosystem of the Naroch Lakes (Belarus). We apply the knowledge-and-data-driven, or KDD, approach, which allows us to use the results of the monitoring of the Naroch Lakes ecosystem, to identify the time-dependent functional response in each of the reservoirs of this ecosystem. The KDD approach provides for direct input of monitoring data into the mathematical description of population dynamics. As a result, we show that predator-dependent functional responses best match the environmental processes in the ecosystem of the Naroch Lakes. At the same time, we have identified predator-dependent functions that meet the monitoring data even worse than prey-dependent functions
COVID-19 Vaccine Education: Is It Effective?
No full textThe article presents experiment findings to verify the educational activities program in the field of COVID-19 vaccine prevention for students. The study was conducted at the Moscow State University of Psychology and Education, the analytical sample size is N = 780. Five aspects (as measuring scales) of attitudes towards vaccination against COVID-19 were identified: the benefits of vaccination against coronavirus for a person and society; denial of the coronavirus danger and hope for natural immunity; fear of the side effects of vaccination against coronavirus and distrust of vaccination safety information; confidence in the serious negative consequences of the coronavirus vaccine; disbelief in the proven effectiveness of Russian vaccines at the international level. A comparative analysis of the effectiveness of 4 strategies for influencing student's attitudes to vaccination against COVID-19 was carried out: lectures only (CG), lectures in combination with seminars / webinars in the traditional format (EG1), with discussions of real life cases related to vaccination and its effects (EG2), with holding student's debates (EG3). There are no gender differences between groups. There are differences in age, but the mean difference does not exceed 2 years. At the ascertaining stage, there are no differences on the scales; at the control stage, differences are revealed. On all 5 scales, positive and negative effects in the whole sample are almost equally likely. It was not possible to single out a fundamentally best strategy for educational influence. In general, the effectiveness of educational activities is somewhat greater when conducting lectures in combination with various kinds of seminars compared to lectures alone, but the effectiveness is low everywhere. Cohen's d standard effect sizes do not exceed 0,44. Slightly higher is efficiency when conducting lectures in combination with traditional seminars / webinars or case studies. The student's debates holding strategy did not meet expectations. A number of significant correlations were found between various aspects of attitudes towards vaccination with natural science literacy, logical thinking, verbal intelligence, the degree of fear of COVID-19, personal and situational anxiety. All correlations are weak, but their direction is as expected
