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ACTIVE CONSORTIA OF MICROORGANISMS FOR OIL DEGRADATION IN A WIDE RANGE OF POSITIVE TEMPERATURES
Get PDFSoil pollution with petroleum hydrocarbons has become a global problem and was a consequence of the intensification of human industrial activity. Remediation of contaminated sites using a microbiological process (bioremediation) has proven to be effective and reliable due to its environmental performance. For bioremediation of oil-contaminated ecosystems, both individual strains of microorganisms and their associations are used. It was noted that the use of consortia of hydrocarbon-oxidizing microorganisms leads to a more complete destruction of hydrocarbons. One of the main factors for the oxidation of oil hydrocarbons is the temperature regime. In this study, the selection of consortia of oil-oxidizing microorganisms capable of effectively degrading oil in a wide range of positive temperatures was carried out. Experiments were carried out on a mineral medium with oil at 10°C, 30°C and 50°C. It is shown that the most active transformation of oil occurred at 30°C. 3 consortia were selected that utilized oil from the Zhanatalap and Dossor fields at all temperatures under study. The use of such consortia will contribute to the effective cleanup of contaminated areas throughout the growing season. This is very important in an arid climate, which is characterized by sharp seasonal and daily temperature fluctuations
EMPLOYER BRANDING OF WINE COMPANIES IN THE CZECH REPUBLIC: USING SOCIAL NETWORKS WHEN RECRUITING NEW EMPLOYEES
Get PDFThe idea of employer branding has been around for ages, however, in the twentieth century the concept of employer branding has evolved to become a more strategic tool to attract and retain talent. Companies have begun to focus on building a strong employer brand founded on an engaging company culture, a favorable work environment, and socially responsible behavior. Effective employer branding is also very important for wine companies if they want to succeed in today\u27s competitive labor markets and attract and retain the right people. One of the trendy ways to present the employer brand and reach potential job seekers is the use of social networks. The article presents the findings of the research of selected wine companies in the Czech Republic conducted by authors to find out whether and how the wine companies use social networks when attracting potential job seekers. The research was based on an analysis of the use of social networks by selected wine companies and two questionnaire surveys, the first among employees of selected wine companies and the second among potential job seekers in wine companies from among the general public. The findings revealed that newer social networks such as TikTok or Twitter are hardly used by wine companies, on the contrary, classic Facebook and Instagram are still the most popular. The surveyed wine companies have considerable room to improve the promotion of the employer brand through social networks. Wine companies have a significant challenge to improve the promotion of their employer brand through social networks
THE VISUAL MEDIATION OF A HISTORICAL INNOVATION
Get PDFThis paper aims to show how a historical innovative engineering achievement can be mediated visually without having to study the underlying mathematics. The current dissertation examines the history and construction of the four crossing towers that Cologne Cathedral has had in the course of its history. Although depicted in numerous illustrations of the past centuries, their concrete appearance remains largely hidden. Documents from the cathedral archives allow us to reconstruct both its construction and its appearance. In the process, discrepancies between construction planning and execution as well as between execution and seemingly detailed visual reproduction for the public come to light. Here, however, we are concerned with its penultimate and final version, built between 1848 and 1880 and then slightly altered after the destruction of the Second World War. This raises the question of whether its mid-twentieth-century form does not require a revision to its late-nineteenth- century completion in order not to resurrect the original appearance, a twelfth-century design after all, as the completion of this already infinite building site. An important argument is precisely that engineering innovation which made the form planned in the Middle Ages possible under the demands of the 20th century
RELATIVE MOLECULAR MASS AND RELATIONSHIP TO OTHER NATURAL SCIENCES
Get PDFThe report presents a learning activity conducted in chemistry and environmental science classes. A high degree of inter- and transdisciplinary was achieved during its implementation. Relative atomic and molecular mass and their relationship to other natural sciences are discussed. A variety of teaching approaches and methods are applied, some of which are: exploratory approach, experiential learning, learning by doing, small group work, etc. During the activities, various electronic applications are used, models of molecules are constructed, and a variety of problems are posed and solved. One of the final products of the lesson is related to the students\u27 creative activity in constructing a model of a cave
THE IMPACT OF THE CEFR ON FOREIGN LANGUAGE EDUCATION IN JAPAN
Get PDFOver the last decade, the Japanese Ministry of Education has undertaken multiple reforms aimed at improving foreign language education and ensuring young Japanese people are ready to respond to the challenges of globalization. Many of the new guidelines have been modelled on the Common European Framework of Reference for Languages (CEFR). The present paper examines the impact that the CEFR has had on the national curricula, teaching practices, and assessment in Japan. After a brief review of the origin and goals of the CEFR, it discusses the development of the CEFR-J project, the introduction of ‘Can-Do’ descriptors in national curricula, and the development of CEFR-based teaching materials and tests. Positive changes as well as challenges are examined, following which recommendations are made for improving current policies. Special attention is given to developing the language competencies of Japanese teachers of English
HOW DO TEACHERS TEACH BOTANY AT GYMNASIA? A SURVEY IN SLOVAKIA
Get PDFWe investigated the experiences of high school biology teachers in teaching botany. A questionnaire was chosen as a research tool, which was filled out by a total of 124 gymnasium teachers from 4 regions (capital city Bratislava 19 teachers, west SK 40 teachers, central SK 31 teachers, east SK 34 teachers). Gymnasia teachers do not have adequate equipment at their disposal (e. g. only 42.1% of quality microscopes in Bratislava and 73.5 – 77.5% in other regions), but they are relatively active (e. g. 73.5 – 87.1% of teachers use native microscopy and 64.5 – 84.2% of teachers use 3D models in teaching). They also use various plant materials, but algae, mosses and ferns are used less frequently (mainly by teachers from Bratislava). Also, most teachers do not consider students’ knowledge of plant biology to be adequate and have identified which areas of plant biology are problematic for students. In addition, even the teachers admit that their knowledge of plant anatomy and plant physiology is not adequate (29.4 – 57.5 % in individual regions). We also found positive correlations between the number of gaps in teachers’ knowledge and the number of gaps in students’ knowledge (r = 0.4892). The relationship between the number of tools available to teachers and their activity, i.e. the number of aids and equipment they use in teaching, was also found (r = 0.5063)
QUALITY MANAGEMENT SYSTEM AT THE FACULTY OF FINANCE AND ACCOUNTING OF THE UNIVERSITY OF NATIONAL AND WORLD ECONOMY (UNWE)
Get PDFThe main purpose of the paper is to analyze the most essential aspects of the functioning of the Quality Management System (QMS) at the Faculty of Finance and Accounting of the University of National and World Economy (UNWE), Sofia, Bulgaria. These aspects are related to the Quality Assurance Policy of the UNWE, the quality objectives of the university and, in particular, of the Faculty of Finance and Accounting, the structure and composition of quality management bodies at the university level and at the faculty level, and the improvements and changes made in the QMS of the Faculty of Finance and Accounting during the last years
PLACE OF LEARNERS’ CULTURES IN SECOND LANGUAGE TEACHING
Get PDFAccording to the action-oriented approach that currently inspires second language (L2) teaching, learners must be able to perform tasks in the L2 within the cultural framework of this language. The Common European Framework of Reference for Languages mentions that learners must be able to act as cultural mediators between their linguistic community and native speakers. Second language learning is always an invitation to intercultural dialogue. Being able to talk about their own culture is as important as learning about the L2 culture. Second language learning is considered as learning the culture of the L2 and language textbooks give an important place to the cultural aspects of the L2. Some textbooks for refugees, for example, make room for activities linked to the learners’ cultures and offer the possibility of talking about themselves and their country. This paper discusses the place given to the learner culture in the second language acquisition reference documents and L2 classrooms and the importance of using the learners’ native culture and non- linguistic knowledge in second language teaching in adults
STUDY ON THE EFFECT OF ENDOPHYTIC INSECT PATHOGEN FUNGUS ON THE DEVELOPMENT OF PROGRESSIVE MATERIAL IN PEPPER CROP
Get PDFThis study examines the potential of endophytic insect pathogenic fungi to enhance pepper crop growth. Specifically, the study focuses on the use of Beauveria bassiana Balsamo (Vuillemin) (Hypocreales: Cordycipitaceae), an insect pathogenic and endophytic fungus isolated from target insects that has been shown to promote plant growth and protect against parasites (Canassa, 2019). The aim of this research is to investigate the effects of using this fungus as an endophytic treatment on the growth of pepper plants. This study is important as the use of this innovative technique has the potential to serve as an economic strategy for improving plant growth without the need for added nutrients (Tall and Meyling, 2018). This biological treatment differs from systematic human intervention, as Beauveria bassiana spends its life cycle within or between cells forming colonies in healthy tissues of host plants, typically without causing obvious disease symptoms (Wilson, 1995)
SALT TOLERANT RHIZOBACTERIA MITIGATING THE EFFECTS OF SALINITY STRESS ON GROWTH OF SOYBEAN (GLYCINE MAX (L.) MERR.) ON SALINITY SOIL
Get PDFSalinity is a serious abiotic stress that adversely affects plants. Soybean (Glycine max (L.) Merr.) is not a salt tolerant crop and salt stress is a major problem for its productivity. One way to mitigate salt stress is to inoculate with salt-tolerant growth-promoting rhizobacteria. The purpose of this study was to isolate local strains of salt-tolerant rhizobia and phosphate-solubilizing bacteria and to study their ability to promote soybean growth on saline soils. In our study, isolates of rhizobia and phosphate- solubilizing bacteria were isolated from the rhizosphere and nodules of soybean growing on saline soil. Their growth under salt stress conditions was studied and high salt-tolerant isolates were selected: three isolates of rhizobia and four phosphate-solubilizing bacteria. Under salt stress, isolates of rhizobacteria were studied for nodulation and phosphate solubilization, and active strains were selected. This strains were identified by the molecular genetic method of Sanger. It was found that rhizobia RH21, RH26, RH28 refers to Bradyrhizobium japonicum, phosphate solubilizing bacteria to Pseudomonas koreensis FT4, Bacillus pumilus FM12 and Bacillus sp. FC11. The inoculation with rhizobacteria mitigated of the salt stress was showed. This is demonstrated by an increase in indicators of growth of inoculated plants. The co-inoculation with two strains rhizobacteria (RH28 and FT4) most effectively mitigated salt stress: the roots weight was increased by 3 times, shoot by 2.7 times and number of nodules by more than 3 times compared with control without salinity. Our study showed that inoculation with local strains of salt-tolerant rhizobacteria increased resistance to salt stress, improved growth, and promoted ecological adaptation of soybeans to saline soils