Midlines of Quadrilateral

Author(s): Sead Rešić,Maid Omerović,Anes Hadžiomerović,Ahmed Palić / Language(s): English Issue: 3/2021

In this section we deal with an interesting fact which will imply ABCD some well known theorems. Namely we prove that in a convex quadrilateral whose diagonals meet at O, the midline of the triangle ∆BOC parallel to BC, the midline of the triangle ∆AOD parallel to AD, and the midline of the quadrilateral ABCD connecting the sides AB and CD meet at one point, or are parallel.

Виртуален час по математика

Author(s): Sevdalina Georgieva / Language(s): Bulgarian Issue: 3/2021

The challenge of conducting an electronic environment for remote mathematics education is a condition for finding effective methods, forms, approaches, and platforms for a successful learning process. One of the solutions for the implementation of a „virtual lesson“ in mathematics is the cloud environment of GeoGebra. The article discusses various aspects of the application of the online platform GeoGebra in mathematics education: creating interactive worksheets, virtual classrooms, online boards, tools for classroom management, monitoring, and evaluation of student achievement. The attitudes of mathematics teachers about the use of GeoGebra online applications in math lessons are researched and analyzed.

Стратегията „Учене през целия живот“ в утвърждаване на стандартите за подготовка на морски кадри

Author(s): Blagovest Belev / Language(s): Bulgarian Issue: 5/2021

In the early 1990s, before the current International Convention on Standards of Training, Certification and Watch keeping – 78 have been fully implemented in the shipping industry, each ship owner have employed seamen according to the needs of the particular ship. The responsibility for the training and the subsequent qualification was completely handed over to the maritime educational institutions. Since the beginning of the new millennium, the shipping industry has been affected by many regulatory changes and rapid development in various sectors. One of the key area is to improve the quality of training and qualification of seafarers. This process does not complete with graduation from an educational institution, as the basis of professional training are laid there. The expansion and improving of knowledge and skills, many of which are outside the scope of conventional competencies, are realized by additional educational forms and techniques. As such a form, are fleet officer’s seminars organized by almost all shipping companies. This article presents the summarized results of such seminars carried out in different cities and countries and different shipping companies. It provides a detailed analysis of the strengths and weaknesses of the event in the context of the principles of the science “andragogy” and the “Life Long Learning” strategy. The article makes attempt to open the door for cooperation between shipping industry and maritime educational institutions for further training and qualification of maritime personnel.

Empirical Study on the Effects of the Application of Virtual Reality to Experiential Education on Students’ Learning Attitude and Learning Effectiveness

Author(s): Lingke KONG / Language(s): English Issue: 73/2021

Along with the change in social environment, a lot of families ignore the parenting styles to result in weak empathy of students, who simply see others’ faults but ignore personal responsibilities. In the experiential education process, the guides encourage students to seek for answers by themselves, allowing students presenting sense of participation and sense of accomplishment. Nevertheless, it requires more research to prove whether experiential education activity could enhance students’ learning effectiveness. Apply experimental design model to the quasi-experimental study, total 198 students in Jiangsu, as the research objects, are precede the 16-week (3 hours per week for total 48 hours) experimental teaching. The research results are summarized as following. 1. Applying virtual reality to experiential education with teams, students reveal good interaction with peers and receive honor and affirmation in the group. The learning attitude and motivation are therefore positive. 2. Applying virtual reality to experiential education activity for team tasks and peers interaction, students present the ability to organize and execute action processes to achieve specific achievement belief and achieve the objectives with the application of virtual reality to experiential education. 3. Students favoring the application of virtual reality to experiential education would engage in the group and regard it as the model to change the behaviors. In this case, students participating in virtual reality applied experiential education appear significantly positive correlations between learning attitude and learning effectiveness. According to the results to propose suggestions, it is expected to more effectively integrate teachers or adjust the directions of teaching strategies to effectively provide the effort direction for students’ learning needs.

Effects of Digital Media Integrated Reciprocal Teaching on Students’ Reading Ability and Motivation

Author(s): Zhenlong CHU / Language(s): English Issue: 73/2021

The 21st century is the knowledge economic era decided by brains. Reading is the sole tactic to rapidly accumulate knowledge and effectively absorb others’ research results. The level of reading ability is closely related to individual future learning and employment and even economic development. A competitive nation nowadays would invest large amount of resources and plans in reading. Students could broadly absorb distinct knowledge through reading to make up inadequate teaching hours of teachers, i.e. entering the time, space, and culture in books through reading, without which people could merely live in personal time and space. With experimental design model to precede the quasi-experimental study, total 216 elementary school students in Jiangsu, as the research objects, are preceded the 16-week (3 hours per week for total 48 hours) digital media integrated reciprocal teaching. The research results show that digital media integrated reciprocal teaching would affect reading ability, digital media integrated reciprocal teaching would affect reading motivation, and reading ability reveals significantly positive effects on reading motivation. According to the results, suggestions are proposed, expecting to apply previously mentioned reciprocal teaching principles to readers’ animation design, to cultivate students’ learning strategy through “man”-“machine” interaction, and to enhance reading comprehension.

Създаване на животоподдържаща система за астронавти на мисия до Марс

Author(s): Hristina Kostadinova / Language(s): Bulgarian Issue: 4/2021

The more space science develops, the clearer it is that future generations of our civilization will control, inhabit and travel in space around the Earth. It is hard to imagine that astronauts’ long missions in future will be realized in an only technological environment. Building a life-sustaining system for astronauts on a mission to Mars is our main goal. For the development of an effective life-sustaining unit for use on long space and crewed flights, we need fresh food. The plants, we selected, are radishes (Raphanus sativus) and spirulina (Arthrospira platensis) but it is also necessary to work on the supply of proteins and fats. By calculating the specific nutritional needs of astronauts, we can keep them healthy on long duration space explorations. Water recycling is absolutely necessary. It reduces the load on board the spacecraft. The effect of the physical activity on the oxygen consumption has to be taken into account on spacecraft. For the successful growth of radishes and spirulina, the photosynthetic active radiation supply has to be at least 2μmol/m2/s. In the 2 μmol/m2/s treatment. The most effective influence on both mass and length of cotyledons of radishes, exerted the green and the yellow light. On the other hand, the accumulation of the photosynthetic pigments (chlorophyll A and chlorophyll B) was influenced by the blue and green spectrum of light. The most favourable influence on the accumulation of carotenoids exerted the green and the yellow light.We weighed the mass of spirulina in photosynthetic active radiation 2 μmol/m2/s. According to collected data, the green and the red light were the most favourable for the accumulation of biomass of spirulina. We analysed the concentration of chlorophyll A and chlorophyll B in the biomass. Under the influence of yellow and red lights, chlorophyll A and B were accumulated in a huge amount. The most favourable influence on the accumulation of carotenoids exerted the green and the yellow light.

Изследване на магнитните полета на жилищни сгради и влиянието им върху здравето на хората

Author(s): Radka Kostadinova / Language(s): Bulgarian Issue: 4/2021

With the prosperity of civilization people are more often put to the vibrations of the Earth’s magnetic field, which they are affecting by themselves in various ways. Settlements and residential areas, distant and electrical conductors, with its constantly changing electromagnetic field create strong deformations and weaken the Earth’s magnetic field. Is it possible that the reduction of the magnetic fields, in such buildings, to lead to illness and discomfort of the people living there. Is it possible that chronic discomfort and illness of the humans who inhabit those buildings don’t suffer from conditions, we usually connect with junk food, polluted air and the our stressful lifestyle, but are actually a result of the greatly reduced and changing magnetic field in the populated areas. With the research project developed by Tereza Stefanova with the help of students from the school, we tried to answer these questions. The purpose of our research is to: 1. Measure the magnetic field in buildings in our city, which differ by their construction and height and also to measure outside the city. 2. Determine if the change of the magnetic field and possible magnetic anomalies affect our health condition. The tasks we had to do to achieve our goal is to do take the measurements with a specific device.

Интеграцията в учебния процес

Author(s): Neli Borcheva / Language(s): Bulgarian Issue: 4/2021

The article deals with the issue related to the use of the integrated approach and the integrated cross-curricular interaction in education. It focuses on its advantages for conducting a modern learning process, orientation to specific results and practical orientation of training. Issues of e-learning are addressed. Experiences and good practices of innovative schools in the implementation of integrated cross-curricular interaction are shared.

Въвеждане на ученици и студенти в практическата астрономия посредством инструменти на Виртуалната обсерватория

Author(s): Alexander Kurtenkov / Language(s): Bulgarian Issue: 4/2021

Large-scale astronomical surveys from the last decades have turned the usage of catalogs and archival data into one of the primary skills of contemporary observational astronomers. Virtual observatory tools give high school and university students the opportunity to conduct astronomical research by themselves, using freely available observational data. For this purpose, they need basic theoretical knowledge in astronomy. The current paper includes a review of this theoretical knowledge as well as a review of Virtual observatory tools suitable for students. Results obtained by students using VO tools at the Beli Brezi Summer School in Astronomy and Astrophysics are presented as well.

Analysis of the liquids composition by the sound produced by their heating

Author(s): Assen Pashov,Grigori Matein / Language(s): English Issue: 4/2021

When a liquid is heated and the power of the heater is high enough (about 1MW/m2), bubbles are formed at the surface of the heater. Their expansion and collapse are the source of a specific sound, known to everybody who uses a kettle to prepare water for tea or coffee. The main goal of this study is to investigate whether it is possible to judge about the composition of the heated liquid by this sound. A specialized experimental set up is assembled and a systematic study of all known factors, influencing the sound is carried out. It is found out that the most crucial parts of the set up are the container for the liquids and the heater. They are discussed in detail and considerations for further improvements are given. It is demonstrated that with the present apparatus it is possible to detect changes in the sound spectrum when changing the composition of the liquid. For example, one can distinguish between pure water and water with less than 0.1% of ethanol. Along with admixtures of different alcohols, experiments with a soap solution in water and carbonated water are performed.

Calculation Method for Determining the Gas Flow Rate Needed for Liquid Removal from the Bottom of the Wellbore

Author(s): Miel Hofmann,Sudad Al-Obaidi,I.P. Kamensky / Language(s): English Issue: 4/2021

As a result of flooding and accumulations of liquid at the bottom holes, the operating conditions of gas wells become complicated, so that they end up self-squeezing and losing of gas production. A method is proposed for determining the technological parameters of operation of the gas wells with the purpose of removing liquid from the bottom of the wells. Data from the gas dynamics and special studies were used to develop this method, which has been tested on one of the oil and gas condensate fields. It offers the possibility to increase the accuracy of the information provided by the fund and to ensure that the production wells are operated as efficiently as possible with the use of this method. In the case of liquid accumulation in the well that is insignificant, or when water is present in the well, the technique is beneficial in that it allows determining the technological parameters of well operation and ensuring the removal of the liquid from the bottom of the well.

Матурите по география – от най-желани, до най-стремглаво отбягвани

Author(s): Ivan Drenovski / Language(s): Bulgarian Issue: 4/2021

The article provides a retrospective review of the mandatory state matriculation examinations in Bulgarian language and the second elective subject conducted in the period 2008 – 2021. Official data obtained on the basis of applications under the Access to Information Act were used. The total number of those who appeared at the matriculation exam in geography and economics and their grades in it are compared with the data for the other general matriculation subjects. The dynamics in the number of pupils attending all kinds of exams is monitored. Different tendencies stand out, which are explained by the action of general and specific factors. The reasons for the low results and the consequences of the headlong decline of those wishing to take the matriculation exam in geography and economics are indicated.

A HEALTHY FAMILY MODEL DURING PANDEMIC TIMES

Author(s): Simona Eftimie / Language(s): English Issue: 1/2020

This paper aims to identify the characteristics of a healthy family model for these times of profound social challenges. For this purpose we have tried to analyse some traits of family relationships that have stood the test of time and also demonstrated their value during pandemic: quality time spent together by family members, the role of working together for house holding, the relation with extended family, the self and re-discovering process etc. Other results are discussed here.

За необходимостта от психологизация на съвременния образователен процес

Author(s): Daniela Boyanova-Minkova / Language(s): Bulgarian Issue: 4/2021

Relying on the theory of generational differences that arises in the United States in the late 20th century and the new scientific field of psychodidactics, this presentation justifies the need for psychologization of modern education. In order for the educational process to be beneficial, it is no longer enough to simply use innovative educational approaches, high technologies and modern learning systems. The need for a radically different type of relationship between teacher and students inside and outside the classroom comes to the fore, which should be built based on a new ethical mutual responsibility, synergy and creative cooperation.

RECONFIGURATION AND A NEW TYPE OF TEACHER-STUDENT RELATIONSHIP IN ONLINE EDUCATION

Author(s): Alina Mărgăriţoiu / Language(s): English Issue: 2/2020

Although the coronavirus pandemic has shown the dramatic failure of current public education policies, this paper illustrates the results of an online focus group with sophomores in Primary and Preschool Pedagogy that online education can be a viable alternative to traditional / face-to-face education only if teachers make certain reconfigurations in the teaching-learning-evaluation activity and in online educational communication, and the teacher-student relationship is imbued by goodwill and mutual care.

ADULTS’ EDUCATION DURING PANDEMIC TIMES: PERSONAL AND PROFESSIONAL PERSPECTIVE

Author(s): Simona Eftimie,Alina Mărgăriţoiu / Language(s): English Issue: 2/2020

This paper aims to identify the advantages and disadvantages of distance education for middle stage adult students. For this purpose we have analysed our students’ perspective considering the implications of distance educations on their professional and professional life. We have also tried to identify routines changes and perspective plans considering personal and school relationships. Other results, like particular difficulties for this category of students – in roles conflicts – marriage partners, parents (most of them have children), members of extended family, friends etc. are also discussed here.

English Communication through Online Projects – pilotaż nowego kursu online w Jagiellońskim Centrum Językowym

Author(s): Natalia Szymaszek / Language(s): English Issue: 13/2024

Приложение на компютърните облачни технологии в обучението на морски кадри: Същност, предимства и предизвикателства

Author(s): Plamen Branyakov / Language(s): Bulgarian Issue: 4/2024

This publication explores the application of cloud computing technologies in maritime training, focusing on their essence, advantages, and challenges. The research includes an analysis of the main cloud technology models (IaaS, PaaS, SaaS) and their application in education, emphasizing the importance of virtual simulations, online courses, and the management of educational platforms in a cloud environment. The publication also analyzes the benefits of implementing cloud solutions in maritime education, such as cost reduction, flexibility, and accessibility, as well as the challenges, including technical limitations and security issues

Облачни платформи с отворен код: OpenStack, CloudStack и OpenNebula. Сравнителен анализ и приложение на аналитичен йерархичен процес (AHP) за избор на подходяща платформа за обучение на морски кадри

Author(s): Plamen Branyakov / Language(s): Bulgarian Issue: 4/2024

The publication explores the selection of Open-Source cloud platforms for building training environments tailored to maritime education. The analysis compares OpenStack, CloudStack, and OpenNebula platforms using the Analytic Hierarchy Process (AHP) for structured evaluation based on criteria such as scalability, security, support, and cost-efficiency. The results indicate that OpenStack is the most suitable platform for creating cloud infrastructures that meet the specific demands of maritime training. The paper includes charts, tables, and visualizations to illustrate the comparison and the deployment process

Изграждане на облачна платформа за обучение на морски кадри с помощта на OpenStack и Moodle

Author(s): Plamen Branyakov / Language(s): Bulgarian Issue: 4/2024

This publication examines the development of a cloud platform for maritime training by integrating OpenStack as the infrastructure and Moodle as the Learning Management System (LMS). The platform's architecture, key components of OpenStack, integration process with Moodle, and the use of virtualization to simulate real-world conditions in training are described. Special attention is given to scaling approaches—vertical and horizontal—which ensure flexibility and reliability in managing workloads. The study highlights the advantages of using cloud technologies for maritime education, including efficiency, scalability, and adaptability to specific needs