scholarly journals Variability of morphophysiological parameters of Chenopodium album and Taraxacum officinale in the conditions of Kazan

2021 ◽  
Vol 265 ◽  
pp. 01027
Author(s):  
Natalya S. Arkhipova ◽  
Kadriy K. Ibragimova ◽  
Alisa R. Ilyasova

One of the promising methods for the integral assessment of the quality of the environment and the vital activity of herbaceous plants is the assessment of the state of living organisms by the morphometric characters development stability. The study revealed an increase in the variability of morphological characters in the plants of lamb's quarters (Chenopodium album) and milk-witch gowan (Taraxacum officinalis) in areas with a high level of technogenic pollution. Phenotypes with smaller sizes of vegetative organs prevailed there, as compared with the area with a low level of pollution. At the same time, viable seeds and seedlings were formed in the plants of urban cenoses.

2021 ◽  
Vol 39 (5) ◽  
Author(s):  
Anastasiia Mohylova ◽  
Igor Grybyk ◽  
Yuliia Hlivinska ◽  
Iryna Kudinova ◽  
Marharyta Stepanenko ◽  
...  

Investment attractiveness is an essential element of intensifying investment processes. The high level of investment attractiveness provides a stable inflow of investments into the country, additional revenues to the state budget, a better social environment in the country.As a proposed innovative transformation technology, tools for digitalization of public administration are described, aimed at improving the quality of services provided, harmonizing relationships between public administration entities, and optimizing and redistributing powers from state to municipal authorities.The article's primary goal is to develop a toolkit for assessing the investment attractiveness of an enterprise in the context of development.The authors studied the theoretical basis, analyzed the current state of investment activity in Ukraine. Based on the analysis, a methodology for the integral assessment of the investment attractiveness of an enterprise was proposed. The proposed method has the following advantages: an integrated approach, coverage of a large set of indicators and coefficients, accurate mathematical calculation of the indicator, which serves as a criterion for assessing investment attractiveness, allows you to consider the dynamics of indicators over several years.


2021 ◽  
Vol 101 ◽  
pp. 03039
Author(s):  
Liana Sagatelova ◽  
Irina Tarasova ◽  
Nataliya Asanova

This article presents a diagnostic criteria-based methodology for a systematic and complex assessment of the quality of teaching Mathematics in school. This methodology may help assess the prospects of applied approaches to teaching Mathematics as well as monitor it and describe in terms of ensuring the high quality of general education in Mathematics. We used Kolmogorov’s “convolution of qualities” as a basis for developing this methodology for the systematic and complex diagnostics of mathematical education in school. This methodology is used to assess the quality and optimization of complex objects in mechanics, chemical industry, economics, and higher education. The suggested integral assessment (systematic and complex diagnostics) was successfully applied to evaluate the quality of teaching Mathematics in schools of the Volgograd region. We defined three levels of mathematical education quality: discrete (minimal and restricted level), fragmentary (average functional level), and integrated and comprehensive (a rather high level).


Author(s):  
Vladimir Tikunov ◽  
Tatiana Kotova ◽  
Stanislav Belousov

The article provides an overview of existing approaches to assessing the ecological conditions of the environment. An integral assessment of the current ecological conditions with a high level of anthropogenic impact on the environment and the constantly increasing population of the Earth is an important task aimed at determining the strategic path of sustainable development of countries and their regions. Environmental indicators used for this purpose should be representative of environmental conditions and be suitable for regular monitoring at various scale levels. Ecological conditions is an important factor of the quality of life, the role of which is steadily increasing. The article shows approaches to assessing the quality of life, taking into account environmental conditions of countries and their regions, and provides a variant of integral assessment for Russian cities using state statistics and environmental monitoring data. A study was carried out on the applicability of various indicators to assess the quality of life. Resulted map of the Russian cities quality of life shows the spatial distribution of the quality of life over the territory of Russia.


2019 ◽  
Vol 96 (4) ◽  
pp. 302-305 ◽  
Author(s):  
Yu. A. Rakhmanin ◽  
A. V. Meltser ◽  
A. V. Kiselev ◽  
N. V. Erastova

Introduction. One of the key factors influencing on the quality of drinking water is the high level of water sources of the pollution, leading to the need for large-scale water treatment. There are remained risks, the consequence of which may lead to the deterioration of the quality of drinking water which is conveyed to the population. It is necessary to introduce effective technologies of water treatment, informative and reliable approaches for the assessment of epidemiological safety and harmlessness of drinking water. One of the priority directions is the development and use of methods of the integral assessment of drinking water quality. Aim of the study. For this purpose there was developed a method for the integral assessment of drinking water relying upon indices of the chemical harmlessness and a method for the comprehensive assessment of the risk of bacterial intestinal infections transmitted by water. There is proposed a method of assessing the quality of drinking water in terms of epidemiological safety, based on the fundamental principles, and providing a probabilistic approach to the assessment of health risk. Conclusion. The development, argumentation and implementation of the method of the integral assessment of the probabilistic health risk with the combined effect of chemical and microbiological agents contained in drinking water remain to be actual.


2009 ◽  
pp. 117-122 ◽  
Author(s):  
Anita Puskás-Preszner ◽  
Béla Kovács

Molybdenum is not a well-known microelement, but being a constituent of several important cellular enzymes it is an essential microelement. Molybdenum occurs in all foods, but at very low levels. There does not appear to be any particular foods or types of foods, which in the absence of extrinsic factors, naturally have high levels of molybdenum. However, environmental pollution, from natural or anthropogenic sources, can lead to high level of the metal in plants.Our study is based on the long-term field experiments of Nagyhörcsök, where different levels of soil contamination conditions are simulated. Soil and plant samples were collected from the experiment station to study the behaviour of molybdenum: total concentration, available  concentration, leaching, transformation, uptake by and transport within the plants, accumulation in different organs, phytotoxicity and effects on the quantity and quality of the crop. In this work we present the results of maize and peas and the soil samples related to them.According to our data molybdenum is leaching from the topsoil at a medium rate and it appears in the deeper layers. In the case of plant samples we found that molybdenum level in the straw is many times higher than that is in the grain, so molybdenum accumulates in the vegetative organs of the plant. The data also show differences in the molybdenum-uptake of cereals and Fabaceae (or Leguminosae).


2018 ◽  
Vol 1 (80) ◽  
Author(s):  
Audrius Gocentas ◽  
Anatoli Landõr ◽  
Aleksandras Kriščiūnas

Research background and hypothesis. Replete schedule of competitions and intense training are features of contemporary team sports. Athletes, especially the most involved ones, may not have enough time to recover. As a consequence, aggregated fatigue can manifest in some undesirable form and affect athlete’s performance and health.Research aim. The aim of this study was to evaluate the changes in heart rate recovery (HRR) and investigate possible relations with sport-specifi c measures of effi cacy in professional basketball players during competition season.Research methods. Eight male high-level basketball players (mean ± SD, body mass, 97.3 ± 11.33 kg; height 2.02 ± 0.067 m, and age 23 ± 3.12 years) were investigated. The same basketball specifi c exercise was replicated several times from September till April during the practice sessions in order to assess the personal trends of HRR. Heart rate monitoring was performed using POLAR TEAM SYSTEM. Investigated athletes were ranked retrospectively according to the total amount of minutes played and the coeffi cients of effi cacy. Research results. There were signifi cant differences in the trends of HRR between the investigated players. The most effective players showed decreasing trends of HRR in all cases of ranking.Discussion and conclusions. Research fi ndings have shown that the quality of heart rate recovery differs between basketball players of the same team and could be associated with sport-specifi c effi cacy and competition playing time.Keywords: adaptation, autonomic control, monitoring training.


2019 ◽  
Vol 28 (10) ◽  
pp. 106-117
Author(s):  
R. M. Asadullin

The continuous modernization of the education system makes the problems of the quality of teacher training increasingly relevant. Moreover, the measures taken to improve the system of teacher education are largely confined to the introduction of new organizational and managerial mechanisms and practically do not affect the internal content and technological structure of the teacher training process.Modern pedagogical universities are constantly looking for innovative models of training teachers that will be able to solve non-standard social and professional tasks. However, recent studies in this area do not fully take into account the nature of pedagogical activity and conditions of its formation. Thus, the need arises for a special study of the processes and means of updating the content and technologies of teacher training in order to control the level of students’ professional competencies development, as required by educational and professional standards. This means the creation of a special educational system in a pedagogical university, which can provide a harmonious and synchronous mastering by future specialists of both subject knowledge and methods of pedagogical activity.The article provides a theoretical study aimed at identifying key patterns of designing a new content for teacher education, the basis of which is the formation of a future teacher as a subject of his own professional activity. The author describes the experience of using a subject-oriented model of education, implemented at Bashkir State Pedagogical University n.a. M. Akmulla. The effectiveness of this model is confirmed by the high level of students’ mastery of designing methods and constructing the educational process, as well as their positive experience in the implementation of educational activities.


2020 ◽  
Vol 2 (2) ◽  
pp. 112-129
Author(s):  
Lelly Oktafiana ◽  
Iis Holisin ◽  
Himmatul Mursyidah

This study aims to describe the quality of the 2018 Mathematics National Examination (UN) in the HOTS types at the junior high level in terms of the level of validity, reliability, problem differentiation power, level of difficulty and distractor. This type of research is a descriptive study. The research was conducted at SMP Muhammadiyah 4 Surabaya and SMP Negeri 13 Surabaya for students in class VIII. The data collection technique used is a test. The test was taken from the 2018 math UN questions in odd semester VIII grade material including HOTS type. The number of UN mathematics questions in 2018 in the odd semester VIII class material consisted of 12 questions with 25% including LOTS types and 75% including HOTS types. The results showed: (1) 100% valid test questions, (2) high question reliability, (3) good problem differentiation power, (4) the difficuly level of the question 77,77% categorized as moderate and 2 question 22,23% are categorized as difficult, (5) there are 2 questions with one of the answer options do not work.


2017 ◽  
Vol 929 (11) ◽  
pp. 40-49
Author(s):  
N.E. Krasnoshtanova ◽  
A.K. Cherkashin

An innovative technique for the secondary use of cartographic information for creating assessment hazard maps of crisis natural and economic situations and an integral assessment of the sustainability economic development and the quality of live is presented. Valuation mapping was carried for the Slyudyansky district of the Irkutsk region. A database has been created for homogeneous network of plots, which contains heterogeneous information about the nature and socio-economic environment of the district. Spatial data were processed using multidimensional statistics on the base of reliability theory models. An account of the environmental correction for each plots is an important aspect of the proposed technique of assessing and creating through maps. This makes it possible to reduce the evaluation function to an invariant form common to all locations and it is used in through way to create assessment maps for natural and socio-economic objects. As a result, a series of raster maps of through thematic content was made. The map of integral hazard of emergence of economic crisis situation displays the lowest hazard values for the territories of settlements and their surrounding areas, as well as areas along roads and railways. Additionally it allocates undeveloped valley of taiga rivers, advanced for economic use, primarily for recreational purposes.


Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 937
Author(s):  
Francisco Javier López-Moreno ◽  
Santiago Atero-Calvo ◽  
Eloy Navarro-León ◽  
Begoña Blasco ◽  
Teresa Soriano ◽  
...  

Green asparagus (Asparagus officinalis L.) is a widely grown and consumed crop which provides high-level nutritional interest. In recent years, the decline syndrome in asparagus plantations has been rapidly augmenting. This syndrome causes the early death of whole plants, also negatively affecting the new replanting. Decline causes notable economic losses in the sector. The objective of this work was to verify the effect of different treatments against asparagus decline syndrome on the physiological parameters and nutritional quality of the spears. To meet the objective, four different treatments were applied to asparagus plots strongly affected by decline syndrome: (T1) untreated control soil, (T2) biofumigation with Brassica pellets, (T3) biofumigation with chicken manure pellets, and (T4) disinfestation of the soil with Dazomet. The cumulative yield and physiological and quality parameters of green asparagus spears were studied. Thus, malondialdehyde (MDA), photosynthetic pigments, glutathione (GSH), ascorbate (AsA), total phenols, flavonoids, anthocyanin, antioxidant test, mineral nutrients, and the amino acid profile were measured on asparagus spears. The results showed that the Brassica pellets and Dazomet treatments were the most effective against the damage caused by the decline syndrome. However, it would be necessary to monitor the evolution in the following years.


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