scholarly journals Fluctuating Asymmetry of Leaves of Betula pubescens Ehrh. for Assessment of Pollution of the Urban Environment of the Kola North

2020 ◽  
Author(s):  
Natalya Saltan ◽  
Ekaterina Svyatkovskaya ◽  
Nadezhda Trostenyuk
Keyword(s):  
Fluctuating Asymmetry ◽  
Significant Proportion ◽  
Urban Ecosystems ◽  
Betula Pubescens ◽  
The State ◽  
Stress Factors ◽  
Dead Trees ◽  
Murmansk Region ◽  
Betula Pubescens Ehrh ◽  
High Level

The results of determining the fluctuating asymmetry (FA) index of Betula pubescens leaves as well as the state of birches in general, as an aboriginal species in the Murmansk region to assess the pollution of urban ecosystems of the Kola North (Murmansk, Apatity, Olenegorsk, Polyarnye Zori, Kandalaksha) in the zone of influence of railway transport have been presented in the article. It has been shown that the most weakened birches grow in Kandalaksha and Olenegorsk, while in Kandalaksha area, there are more than 10% of dead trees. It has been revealed that the highest FA index which characterizes the critical state of plants and the high level of environmental pollution is observed in Olenegorsk. The increased level of FA has also been in Kandalaksha and Polyarnye Zori. The comparative analysis of the state of plants and FA index showed existence of functional interrelation only in Kandalaksha and Olenegorsk when with a significant proportion of weakened trees the indicator of FA is the highest. Due to the fact that the increase in the level of FA is influenced by stress factors caused not only by pollution, the method of assessing the quality of the environment by the fluctuating asymmetry should be used in complex with other studies.

scholarly journals ВИСОКОАДАПТИВНИЙ СОРТ СОЇ АКВАМАРИН

2018 ◽  
pp. 67-69
Author(s):  
Л. Г. Білявська ◽  
Ю. П. Васецький ◽  
О. В. Пилипенко ◽  
Ю. В. Білявський ◽  
А. О. Діянова
Keyword(s):  
Environmental Factors ◽  
Practical Experience ◽  
The State ◽  
Biological Characteristics ◽  
Stress Factors ◽  
State Register ◽  
High Level ◽  
Soy Production ◽  
Abiotic Environmental Factors

Показано цінність білкової культури сої, універсальність її використання, генетичний потенціал, вимоги споживача та переробника. Розглядаються шляхи та перспективи формування сортових ресурсів сої в Україні. До державного Реєстру сортів рослин, придатних для поширення в Україні, занесено значну кількість різноманітних сортів сої. Відмічається зростання частки скоростиглих сортів. Відповідно до сучасних вимог, сорт сої повинен бути високоврожайним, адаптивним, із високим генетичним потенціалом та мати відповідний рівень захисту рослин від біотичних та абіотичних факторів середовища. Базуючись на довготривалому практичному досвіді в селекції сої, у полтавському селекцентрі створено сорти з підвищеним базовим потенціалом. Серед них особливу цінність має сорт Аквамарин, занесений до Державного реєстру сортів рослин, придатних для поширення в Україні в 2013 році. Представлено окремі вимоги до елементів агротехніки. The value of protein culture of soy, the universality of its use is shown. The ways of increasing soy production in Ukraine are considered. To the State Register of plant varieties, suitable for distribution, a significant number of various soybean varieties are listed in Ukraine, most of which have a narrow ecological-geographical adaptation. In modern conditions, the soybean must be highly productive, adaptive, with a high level of resistance to biotic and abiotic environmental factors. Based on long-term practical experience in soybean selection, the hybridization of sources of adaptability to stress factors of the environment resulted in a variety with a higher base potential. Aquamarine variety, entered in the State Register of plant varieties, is suitable for distribution in Ukraine. The morphological and biological characteristics of the variety are given.

scholarly journals Environmental assessment of health indicators of woody plants in natural and man-made conditions

2020 ◽  
Vol 9 (1) ◽  
pp. 100-106
Author(s):  
Irina Salavatovna Siraeva ◽  
Maxim Viktorovich Larionov ◽  
Nikolai Viktorovich Larionov ◽  
Valeria Viktorovna Soldatova ◽  
Tatyana Sergeevna Gromova ◽  
...  
Keyword(s):  
Woody Plants ◽  
Local Population ◽  
Health Indicators ◽  
Urban Ecosystems ◽  
Research Area ◽  
Scientific Basis ◽  
The State ◽  
Moderate Degree ◽  
Sanitary Condition ◽  
High Level

The indicators of the sanitary condition of woody plants in the conditions of natural and artificial ecosystems of the Voronezh and Saratov Regions were established and analyzed. In suburban ecosystems of the research area, the state of woody plants is determined at the level of weak damage. In suburban areas of Balashov with the greatest economic and technosphere potential, woody plants reach an average (moderate) degree of damage. In remote relatively preserved ecosystems (control parameters), the state of these organisms corresponds to a weak ecological diagnostic criterion. According to the identified average arithmetic sanitary indicators in the Voronezh Region, the best condition is characterized by woody plants in the ecosystems of Novohopersk and Gribanovsky, in the Saratov Region - in Turki and Samoylovka. There were also significant differences in the arithmetic mean parameters of the sanitary condition of this group plants representatives differentiated by functional zones. The highest damage values are typical for woody plants in the urban ecosystems of industrial zones. The maximum danger to woody plants was observed within these zones in Povorino, Borisoglebsk, and Balashov with high-level average values of damage to these organisms. Significant concern is also caused by the defeat of the analyzed group of organisms in these cities as part of the ecosystems of the settlement zones. The results of the assessment of the sanitary condition of woody plants should be used as a scientific basis for landscaping, environmental protection and reforestation. Measures are proposed to improve the condition of woody plants in various types of ecosystems in the research area. According to the sanitary state of these organisms, it is possible to determine the limits of sustainability of ecological frameworks and differentiate the parameters of environmental comfort for the local population in different territorial categories.

scholarly journals Educational and scientific potential of Zaporizhia region: characteristics and guidelines of its formation

2021 ◽  
Vol 10 (2) ◽  
pp. 32-42
Author(s):  
Valentyna Antoniuk ◽  
Liudmyla Shchetinina
Keyword(s):  
Development Strategy ◽  
Stem Education ◽  
Professional Education ◽  
Significant Proportion ◽  
The State ◽  
External Evaluation ◽  
Innovation Potential ◽  
The Development Strategy ◽  
Scientific Potential ◽  
High Level

It is fundamentally important for Ukraine to overcome the imbalance in the development of regions, including Zaporizhzhia region. Its innovative development is possible only through the formation and implementation of educational and scientific potential. Therefore, the article aims to analyze the state of education and science in the Zaporizhzhia region and justify the need to develop a program for their development. The object of research is the educational and scientific potential of Zaporizhzhia region. The analysis of the state of secondary education was carried out based on the results of the independent external evaluation in comparison with the results of the independent external evaluation in the whole country. Thus, it was found out that: a significant proportion of school graduates did not exceed a certain minimum threshold; less than 20% received a high level of assessment (160-200 points) in most subjects; the share of pupils who make IET in such important disciplines as physics, chemistry decreases; the share of tests with high scores in Ukraine is higher than in Zaporizhzhia region. The rating of Zaporizhzhia region according to the state of secondary and professional education is decreased in 2013–2016 from 3rd to 6th place. Changes in the state of higher education concerned a decrease in the number of applicants and the number of institutions. In general, Zaporizhzhia region has a satisfactory innovation potential, but obstacles to its implementation are insufficient funding for research, scientific passivity of young people, as well as a decrease in human resources in the scientific field. The development strategy of the region defines the general directions of development of the education system, but the achievement of its real development requires the specification of measures in the relevant program. The program should pay attention to the modernization of material, technical and educational base of schools, ensuring full staffing of schools with highly professional teachers, improving their skills and material incentives, support and development of STEM education.

Leaf fall in white birch (Betula pubescens) is independent of leaf asymmetry

2004 ◽  
Vol 82 (7) ◽  
pp. 910-913 ◽  
Author(s):  
Mikhail V Kozlov
Keyword(s):  
Life Span ◽  
Fluctuating Asymmetry ◽  
Betula Pubescens ◽  
Leaf Longevity ◽  
Leaf Life Span ◽  
Leaf Fall ◽  
White Birch ◽  
Modular Organisms ◽  
Large Trees ◽  
Betula Pubescens Ehrh

Developmental instability, reflected by high fluctuating asymmetry, frequently indicates low fitness of an organism. However, it remains unknown whether in modular organisms, like plants, asymmetry is linked with performance at the level of individual metamers. To explore within-tree relationships between fluctuating asymmetry and leaf longevity, each third day between 22 August and 10 October 2001, leaves were collected under two large trees of white birch (Betula pubescens Ehrh.). The date of leaf fall (a proxy of leaf life-span) was not linked with either leaf asymmetry or damage imposed by chewing insects. Similarly, leaves collected under 10 birches at the end of leaf fall in 2002 demonstrated the same asymmetry as leaves collected at the beginning of leaf fall. These results suggest that leaf longevity in white birch is independent of leaf asymmetry.Key words: leaf longevity, fluctuating asymmetry, within-tree variation.

scholarly journals Variation in Leaf Size and Fluctuating Asymmetry of Mountain Birch (Betula pubescens var. pumila) in Space and Time: Implications for Global Change Research

Symmetry ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 1703
Author(s):  
Vitali Zverev ◽  
Mikhail V. Kozlov
Keyword(s):  
Global Change ◽  
Fluctuating Asymmetry ◽  
Leaf Size ◽  
Leaf Length ◽  
Betula Pubescens ◽  
Plant Performance ◽  
Mountain Birch ◽  
Advantages And Disadvantages ◽  
Murmansk Region ◽  
Global Change Research

Experimental, latitudinal, and historical approaches have been used to explore and/or predict the effects of global change on biota, and each approach has its own advantages and disadvantages. The weaknesses of these individual approaches can, potentially, be avoided by applying them simultaneously, but this is rarely done in global change research. Here, we explored the temporal and spatial variations in the leaf size and fluctuating asymmetry (FA) of mountain birch (Betula pubescens var. pumila) in the Murmansk region of Russia, with the aim of verifying the predictions derived from the responses of these traits to experimental manipulations of abiotic drivers of global change. The examination of herbarium specimens revealed that leaf length increased during the 20th century, whereas the FA in the number of leaf teeth decreased, presumably reflecting an increase in the carbon and nitrogen availability to plants in that century. Along a northward latitudinal gradient, leaf length decreased whereas FA increased, presumably due to the poleward decreases in air temperature. The study site, collection year, and latitude explained a larger part of the leaf length variation in mountain birch relative to the variation in FA. Leaf length is likely a better indicator than FA in studies addressing global environmental change impacts on plant performance.

Comparative characteristics of educational stress and mental health of senior medicine students at different universities (results of an interregional study)

2020 ◽  
pp. 34-46
Author(s):  
Victoria Ruzhenkova ◽  
Irina Sheremet’eva ◽  
Viktor Ruzhenkov
Keyword(s):  
Mental Health ◽  
Medical Students ◽  
The State ◽  
Panic Attacks ◽  
Stress Factors ◽  
Anxiety And Depression ◽  
State University ◽  
The Future ◽  
Training Stress ◽  
Medical University

Stress negatively affects the mental health of students, causes anxiety and depression, leads to poor academic performance, lowers level of professional training and success in the future. The purpose of the research is to study the state of mental health of medical students to develop recommendations for the prevention of maladaptation. Materials and methods. 252 5-year students aged 20–29 (22 ± 1,1) years, 168 (66,7 %) females and 84 (33,3 %) males (137 students of Belgorod State University and 115 of Altay State Medical University (ASMU)) were examined by medico-sociological and psychometric methods. Results. It was established that every fifth student of the Belgorod State University and every third of the ASMU did not enter the medical university on their own initiative. Less than half (43 %) of Belgorod State University students and 30.4 % of the ASMU ones are convinced that the choice of profession was correct, 35 and 37.4 % are, consequently, completely disappointed with it. Students of Belgorod State University dealt with training stress factors poorer and, as a result, have more pronounced mental symptoms of training stress, difficulties in organizing the daily regimen, irregular nutrition, and fear of the future. Regardless of the region of studying, the number of students not committed to the medical profession, after 5 years of study, is more than 3 times higher among those who enter the university not on their own initiative. Students of the ASMU hit substances, skipped classes, played computer games and took sedative drugs more often to overcome academic stress. The degree of anxiety before the exams in students of Belgorod State University was higher (9 points) than in their peers from the State Medical University (7 points). An extremely high (8–10 points) level of anxiety before exams was characteristic of 75,9 and 44,3 % of students, respectively. The former were more likely to experience clinically significant panic attacks: 27,7 and 6,1 %. Conclusion. Given the high incidence of social phobia (19,1–24,1 %), depression (22,6–32,2 %) and anxiety (21,9– 27,8 %) among medical students, the development and implementation of psycho-correctional programs aimed at the formation of adaptive ways to overcome stress, reduce anxiety and depression is required. This will prevent the development of psychosomatic disorders and addictions.

Multidimensional analysis of the state of Russian studies on the education issues over 1993–2016

2018 ◽  
pp. 50-62
Author(s):  
Дмитрий Рубвальтер ◽  
Dmitry Rubvalter ◽  
Александр Либкинд ◽  
Alexander Libkind ◽  
Валентина Маркусова ◽  
...  
Keyword(s):  
Web Of Science ◽  
The State ◽  
Multidimensional Analysis ◽  
Russian Regions ◽  
Global Flow ◽  
Educational Issues ◽  
Foreign Countries ◽  
High Level ◽  
The Web ◽  
Made In

A multidimensional analysis of the state of Russian studies on the education issues over 1993–2016 was carried out based on the materials of the data contained in the Web of Science (SSCI, A & HCI and SCI-E databases). There were determined the dynamics and trends of a number of relevant indicators, such as the number of Russian publications by year, the share of these publications in the global flow of publications on education issues, the dynamics of the share of publications made in co-authorship with foreign colleagues, etc. A number of distributions of Russian publications on educational issues was compiled and analyzed: by journals, by Russian regions and cities, by organizations and authors of the publications. It was found that most of these distributions were characterized by a high level of non-uniformity. A list of journals (125 titles) in which Russian works on education issues had been published was compiled. Russian organizations (308) and domestic researchers (about two thousand) engaged in studying the issues of education were identified. It was discovered that more than 200 organizations and about 400 academicians from 60 foreign countries had participated in Russian studies on the education issues.

scholarly journals Courage and Cowardice in the North African Campaign: The Eighth Army and Defeat in the Summer of 1942

2013 ◽  
Vol 20 (1) ◽  
pp. 99-122 ◽  
Author(s):  
Jonathan Fennell
Keyword(s):  
North Africa ◽  
The State ◽  
The Other ◽  
Human Dimension ◽  
North African ◽  
The North ◽  
High Level ◽  
Eighth Army

High rates of desertion and surrender during the battles in North Africa in the summer of 1942 were a major factor in Eighth Army’s poor combat performance. At the time, some suggested that these problems were symptomatic of a lack of courage or even of cowardice. There are two broad strands to the conceptualization of courage and cowardice. One focuses on the willingness of the person to fight; the other puts emphasis on how actions express an individual’s ability to cope with fear. Whichever conceptualization is used, high morale motivates the soldier to fight and shields the ordinary recruit from his fear, preventing it from overcoming him in battle. Where morale fails, the soldier is left demotivated and burdened with his terror and, therefore, and is therefore prone to desertion or surrender. Because it is extremely difficult to maintain morale at a continuously high level in an environment governed by chance and managed by humans, all soldiers can find themselves in situations where their actions may be judged as cowardly. Alternatively, if they are properly motivated to fight and prepared by the state and military to deal with the unavoidable fear of combat, all soldiers can be labelled courageous. Accordingly, emotive terms should be avoided when attempting to describe rationally explainable outcomes. The undoubtedly negative connotations attached to cowardice in battle and the positive ones attached to courage are, therefore, arguably unhelpful in understanding Eighth Army’s performance in the summer of 1942 and the human dimension in warfare more generally.

scholarly journals Job Stress and Burnout among Social Workers in the VUCA World of COVID-19 Pandemic

2021 ◽  
Vol 13 (13) ◽  
pp. 7109
Author(s):  
Gabriela Dima ◽  
Luiza Meseșan Schmitz ◽  
Marinela-Cristina Șimon
Keyword(s):  
Social Workers ◽  
Job Stress ◽  
Job Demands ◽  
Stress Factors ◽  
Care Plan ◽  
Average Score ◽  
Supervisory Support ◽  
Work Related ◽  
Study Results ◽  
High Level

This paper aimed to explore the changes posed by the new COVID-19 pandemic to the field of social work and its impact on social workers in terms of job stress and burnout in Romania. Two conceptual models were used to frame the discussion: the theoretical framework of VUCA (volatility, uncertainty, complexity, and ambiguity) to discuss the challenges that the unprecedented context of the COVID-19 pandemic has created for social workers; and the Job Demands and Resources model (JD-R) to understand job demands perceived as stressors and burnout. Based on convergent mixed methods, the study sample consisted of 83 social workers employed in statutory and private social services in Romania, from different areas of intervention. Results showed that social workers perceived a high level of job stress related to work during the pandemic, which was associated with higher levels of burnout in the areas of personal burnout (average score 55.9) and work-related burnout (average score 52.5). Client-related burnout was lower (average score 38.4), indicating that stress was generated mainly by organisational factors and work-related factors (workload, aligning to new legislative rules and decisions, inconsistency, instability, ambiguity of managerial decisions, and lack of clarity of working procedures) and less by client-related stressors (lack of direct contact with clients, risk of contamination, managing beneficiaries’ fears, and difficulties related to technology). High job demands and limited job resources (managerial and supervisory support, financial resources, and recognition and reward) led to a high to very high level of work-related burnout for 15.7% and an upper-medium level for 44.2% of respondents. A group of 27.7% reported lower to medium levels of work-related burnout, while 14.5% had very low levels, managing to handle stress factors in a healthy manner. Study results pointed to the importance of organisational support and the development of a self-care plan that help to protect against job stress and burnout. Recommendations were made, putting forward the voice of fieldworkers and managers fostering initiatives and the application of sustainability-based measures and activities designed to deal with the challenges of the VUCA environment.

Analysis of the state of the migration process of the ukrainian population in the context of domestic and international levels

2021 ◽  
Vol 72 (5) ◽  
pp. 110-118
Author(s):  
M. Shkurat ◽  
K. Pavlotska
Keyword(s):  
Social Protection ◽  
Negative Impact ◽  
Migration Policy ◽  
Cash Flows ◽  
The State ◽  
Negative Consequences ◽  
Migration Process ◽  
State Of The Economy ◽  
Migration Flows ◽  
High Level

Analysis of the migration process of the Ukrainian population, which takes place within the state and at the international level during 2014–2019 is carried out in this paper. On the basis of scientific works of domestic scientists and institutes the problems which have not been investigated, and also aspects which have been solved partially are defined. The negative consequences of the Ukrainian migration process on the state of the country are identified. The classification of migration flows of the Ukrainian population according to the reasons of movement is carried out. The main regions and countries which, as of the beginning of 2021, are more attractive to compatriots and are characterized by significant influxes of Ukrainians are identified. The main centers of departure – regions and countries – which are characterized by high level of outflow of Ukrainians are determined, the main problems and reasons that motivate the outflow of Ukrainians are highlighted in this paper. The level of growth of the Ukrainian population in terms of migration flows is defined. The investigation of Ukrainian diasporas, territorial location and analysis of their share in comparison is carried out. The main factors that force the Ukrainian population to move, which affects the demographic situation in Ukraine, the level of employment, as well as the amount of cash flows to the country and the state of the economy as a whole are identified. The main regulations and identified solutions to the migration flows of the domestic population, which were approved and implemented in the period from 2001 to 2019 are compared in this paper. On the basis of current and newly introduced strategies, critical analysis of the ways of regulating the migration process of the Ukrainian population is carried out, the main aspects and problems of the implemented migration policy of Ukraine are determined. The results of the work are to identify the main ways to reduce the negative impact of the migration process on the country's economy and related processes, and strategies to benefit from the movement of citizens of Ukraine, namely: introduction of intellectual security, revision of wages by region, stimulating the process of attracting technology in all spheres of activity and formation of the social protection system.

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