Acta Scientifica Naturalis最新文献_第4页

Comparative analysis of the myriapod fauna (Diplopoda, Chilopoda) of the Shumen Plateau and the Madara Plateau (Northeastern Bulgaria) Shumen高原和Madara高原（保加利亚东北部）的肉豆蔻动物群（双足目、Chilopoda）的比较分析

Acta Scientifica Naturalis Pub Date : 2022-11-01 DOI: 10.2478/asn-2022-0020

D. Bachvarova, Aleksandar Doichinov, R. Halilov

{"title":"Comparative analysis of the myriapod fauna (Diplopoda, Chilopoda) of the Shumen Plateau and the Madara Plateau (Northeastern Bulgaria)","authors":"D. Bachvarova, Aleksandar Doichinov, R. Halilov","doi":"10.2478/asn-2022-0020","DOIUrl":"https://doi.org/10.2478/asn-2022-0020","url":null,"abstract":"Abstract At present, the inventory lists of the Myriapoda of many geographical areas in Bulgaria and the comparative analyzes of the similarity between such local faunas are scarce or completely missing. The present paper presents the results of the comparative analysis of α- and β-diversity of the myriapoda communities in natural habitats in two regions in Northeastern Bulgaria – the Shumen Plateau and the Madara Plateau. The compared habitats in these plateaus have similar geographical, soil and climatic conditions, and similar species composition of plant formations. The analysis of the structure of the myriapoda communities included estimation of species diversity by determining the Shannon-Wiever index (H’) and the Berger-Parker index (d). The degree of similarity between the species composition of the communities was analyzed by the Czekanowski-Dice-Sörensen, Jaccard, Bray-Curtis, Horn, Morisita-Horn indices and the corrected Chao-Sörensen and Chao-Jaccard indices. The species diversity of the millipede community in the Shumen Plateau is much greater than that of the Madara Plateau, while the diversity of the centipede communities in the two plateaus does not differ significantly. In both classes the greatest species diversity is registered in deciduous and mixed deciduous-coniferous forests. Chao-Sörensen and Chao-Jaccard indices of similarity for the myriapod communities in these habitats are the highest, approaching 1, in contrast to the other sites where the registered species composition of the centipedes is smaller and the degree of similarity is about 0.6.","PeriodicalId":7171,"journal":{"name":"Acta Scientifica Naturalis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46526465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Involvement of young people in the citizen science of invasive alien species in Bulgaria 年轻人参与保加利亚外来入侵物种的公民科学

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0010

E. Tsvetkova, Galin Milchev, Hristina Stefanova, R. Tomov

{"title":"Involvement of young people in the citizen science of invasive alien species in Bulgaria","authors":"E. Tsvetkova, Galin Milchev, Hristina Stefanova, R. Tomov","doi":"10.2478/asn-2022-0010","DOIUrl":"https://doi.org/10.2478/asn-2022-0010","url":null,"abstract":"Abstract Citizen science plays an important role in the early detection of invasive alien species (IAS). The involvement of young people in initiatives related to citizen science in Bulgaria could contribute to better monitoring of IAS because of mobility and digital skills of those people. Based on a questionnaire survey, key aspects of involvement of young people in citizen science initiatives were analysed. Two groups of respondents, including professionals (with an educational background in biology or with professional activities related to the bioresources) and non-professionals (not connected with bioresources) were asked to make judgments about their own level of knowledge about: (1) IAS issues, (2) the level of awareness of citizen science; (3) the motivation and preferable ways to participate in citizen science; and (4) the most appropriate approaches for IAS awareness raising. A total of 337 young people in the age range of 15-30 years were questioned during the period 2019-2021. The results show that there is no significant difference between the responses of the two groups of respondents to the questionnaire - professionals and non-professionals. In both groups, less than 50% of respondents are aware of issues related to IAS. Less than 40% of respondents indicated the correct definition of citizen science. The leading motivation factor to participate in citizen science initiatives is “caring for nature” followed by “to contribute to nature conservation” and “to learn more about nature”. Most of the respondents are interested in additional information related to IAS and prefer online sources for information.","PeriodicalId":7171,"journal":{"name":"Acta Scientifica Naturalis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47812909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New data on the presence of the Blotched snake (Elaphe sauromates Pallas, 1814) in the region of Shumen town (Bulgaria), with emphasis on the negative human attitude toward the species 关于在舒门镇（保加利亚）地区存在斑点蛇的新数据（Elaphe sauromates Pallas，1814），强调了人类对该物种的负面态度

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0011

Pavlina Marinova, T. Koynova, Radoslav Tsvetkov, N. Natchev

引用次数: 0

Didactic model of the “Chemistry training process” system when applying semiotic approaches 应用符号学方法的“化学训练过程”系统教学模式

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0012

Radostina Strahilova Vasileva-Tcankova

引用次数: 0

Experimental study on the impact of semiotic approaches on students’ knowledge of chemical symbolism in seventh and eighth grade 符号学方法对七、八年级学生化学符号知识影响的实验研究

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0013

Radostina Strahilova Vasileva-Tcankova

{"title":"Experimental study on the impact of semiotic approaches on students’ knowledge of chemical symbolism in seventh and eighth grade","authors":"Radostina Strahilova Vasileva-Tcankova","doi":"10.2478/asn-2022-0013","DOIUrl":"https://doi.org/10.2478/asn-2022-0013","url":null,"abstract":"Abstract Experimental work in its milestones is carried out according to the following algorithm: 1. Development of a methodological system, including additional training content in Chemistry and Environmental Protection for the seventh and eighth grades /purposefully selected urological fragments, exercises and summary lessons/, in which the subject of study is chemical symbolism, with the application of semiotic approaches - semantic, pragmatic and syntactic. 2. Conducting a pedagogical experiment to establish the effectiveness of the developed methodological system. 3. Analysis of the results of the pedagogical experiment. The pedagogical experiment is included in the work as the main method of researching the influence of semiotic approaches on the knowledge and skills of students for the proper use of chemical symbols. By conducting a pedagogical experiment, it has been shown that the use of the three semiotic approaches in Chemistry and environmental training facilitates and improves the understanding of the complex meaning of chemical symbols by students. The analysis of the results of the written control works in the seventh and eighth grades shows the existence of significant qualitative differences in students’ knowledge of how to identify chemical objects and the degree of skills formed to reveal the information embedded in chemical symbols.","PeriodicalId":7171,"journal":{"name":"Acta Scientifica Naturalis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44405038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphotectonic affilation of the Lilyak Plateau 利雅克高原的形态构造隶属关系

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0015

S. Stankova, T. Tzankov

引用次数: 0

Global Ecological Problems of Modern Society 现代社会的全球生态问题

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0014

Radostina Strahilova Vasileva-Tcankova

{"title":"Global Ecological Problems of Modern Society","authors":"Radostina Strahilova Vasileva-Tcankova","doi":"10.2478/asn-2022-0014","DOIUrl":"https://doi.org/10.2478/asn-2022-0014","url":null,"abstract":"Abstract At the modern stage of society’s development, ecology is seen as a complex, interdisciplinary science of the relationships of organisms, society and the environment. Ecology is a science that studies the regularities of the life of organisms in their natural living environment and taking into account the changes made in this environment as a result of human activity. In recent years, the mass media has been constantly talking and writing about ecology, environmental problems related to anthropogenic activity. The person with his activity is heavily polluted and continues to negatively affect the environment at increasing rates. This reckless behavior of humans and the whole of society threatens planet Earth with imminent doom, no less than the use of nuclear weapons. Only from the positions of modern science ecology is it possible to develop issues related to the prudent use of the natural resources of the biosphere and the fight against changes brought about in nature by human activity in the age of the scientific and technical revolution. For this reason, it is necessary to seek information and a solution to the key current problems: What are the main pollutants of the atmosphere, hydrosphere and lithosphere? What is the origin of these substances? How does their impact affect life on Earth? What approaches and methods are needed to prevent environmental pollution?","PeriodicalId":7171,"journal":{"name":"Acta Scientifica Naturalis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42693660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Editorial Note: Veleka Beach - the place where the mountain touches the sea 编者按:维列卡海滩——山与海相连的地方

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0008

D. Zahariev.

引用次数: 0

The Effect of Nitrogen on the Structural and Electronic Properties of Graphene Sheet using Density Functional Theory 用密度泛函理论研究氮对石墨烯薄膜结构和电子性能的影响

Acta Scientifica Naturalis Pub Date : 2022-07-01 DOI: 10.2478/asn-2022-0009

H. S. Jabr, R. H. A. Ali

{"title":"The Effect of Nitrogen on the Structural and Electronic Properties of Graphene Sheet using Density Functional Theory","authors":"H. S. Jabr, R. H. A. Ali","doi":"10.2478/asn-2022-0009","DOIUrl":"https://doi.org/10.2478/asn-2022-0009","url":null,"abstract":"Abstract The present research focuses on a theoretical study of structural and electronic properties of pure graphene sheet and then adding different number of N2 atoms. The calculations are carried out using the density functional theory (DFT) with hybrid functional B3LYP/6-31G level to investigate the proposed structures. Gauss View 5.0.8 program is used to design the structures of pure and doped graphene sheets. These structures are relaxed by employing the PM6 semi-empirical method with the hybrid functional B3LYPDFT at Gaussian 09 package. The results of the structural properties of the studied graphene sheets showed that good relaxation of the structures, the constant bonds values in the pure graphene sheets in the same ranges of the carbon rings structures. We calculate the total energy, High Occupied Molecular Orbital (HOMO) and Low Unoccupied Molecular Orbital (LUMO) energies and forbidden energy gap. The result of the total energy of that doping graphene sheets is result of the binding energy of each structure and indicates that these structures have relaxation, and the effect of adding N2 atoms in pure graphene sheet on the total energy of the molecule is effective. All doping graphene sheets have small forbidden energy gap, but it vibrates depending on the length and number of each sheet and the position of N2 atoms in the sheets.","PeriodicalId":7171,"journal":{"name":"Acta Scientifica Naturalis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69180450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An ontological model to support citizen science in the field of invasive species research 支持入侵物种研究领域公民科学的本体论模型

Acta Scientifica Naturalis Pub Date : 2022-03-01 DOI: 10.2478/asn-2022-0003

Radoslav Milchev, Galin Milchev, R. Tomov

{"title":"An ontological model to support citizen science in the field of invasive species research","authors":"Radoslav Milchev, Galin Milchev, R. Tomov","doi":"10.2478/asn-2022-0003","DOIUrl":"https://doi.org/10.2478/asn-2022-0003","url":null,"abstract":"Abstract Advances in information technology developments have led to improved ways and means of sharing information and good practices in various areas of social development. Providing the necessary tools enables Citizen Sciences (CS) to play an important role in raising awareness and engaging various stakeholders in the prevention of invasive alien species (IAS). In Bulgaria, up until this point, it is poorly developed, and this is largely due to the lack of information to the general public regarding the categorization of species, pathways of introduction and their negative impact. The article examines the possibilities for introduction and use of an advanced ontological model in the area of invasive alien species research, which will aid the process of involving a wide range of stakeholders in various initiatives that will contribute to preventing the introduction and spread of IAS. The researched approach using the advantages of modern information and communication technologies includes acquaintance with the basic concepts in the area of IAS, the processes related to their introduction and spread, as well as taking into account the existing interrelationships, which would provide opportunities for early detection and the rapid eradication of IAS. The developed model will also be applied to measures and policies put in place to change the attitudes of the general public to the problem of IAS.","PeriodicalId":7171,"journal":{"name":"Acta Scientifica Naturalis","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44686467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0