KATCHAR
SCIENTIFIC PERIODICAL
II, 2020
Recommended by the Scientific Council of the International
Scientific–Educational Center of NAS RA
HASMIK HOVHANNISYAN
PhD in Biology te Ecology, Leading Researcher
ASTGHIK GEVORGYAN
Laboratory Researcher
ECOLOGICAL ASSESSMENT OF ELM SPECIES IN YEREVAN, ARMENIA
Abstract
The goal of this research was to provide an ecological assessment of one of the most widespread trees in Yerevan - elm tree (Ulmus minor Mill) and to investigate the contents of some heavy metals in its leaves. The state of the trees was assessed and the concentrations of the metals in the leaves were determined by atomic absorption analysis. Our studies have shown that 65.4% of the total studied plants were in poor condition and infected with pests. However, Ulmus minor has the ability to accumulate metals from the environment, especially Mo, Hg and Cu. It was revealed that elm green spaces on the streets of Yerevan need renovating and thorough sanitary care. The research results are presented to the city hall for the further development of measures to improve them.
Keywords and phrases: Ulmus minor, heavy metals, pollution, ecological assessment.
LUIZA KARAPETYAN
Russian-Armenian University
PhD student
SOFI ATSHEMYAN
Institute of Molecular Biology NAS RA
Junior Researcher
ROKSANA ZAKHARYAN
PhD in Biological Sciences
THE ROLE OF OXIDATIVE STRESS AND SUPEROXIDE DISMUTASE IN SCHIZOPHRENIA
Abstract
Schizophrenia is a severe mental illness with a partially described pathogenesis. A number of studies indicate impaired oxidative stress in several psychiatric diseases, including schizophrenia. However, data, so far, regarding the nature of changes in levels and activity of these enzymes in terms of schizophrenia are contradictory. The aim of this study is to evaluate the activity of superoxide dismutase in patients with schizophrenia.
Keywords and phrases: Schizophrenia, oxidative stress, superoxide dismutase, enzymatic activity.
SERGEY NIKOGHOSYAN
PhD in Physical and Mathematical Sciences
ALBERT SARGSYAN
Doctor of Physics and Mathematics
YERJANIK ZARGARYAN
PhD in Physical and Mathematical Sciences
EVOLUTION OF ELECTRICAL TRANSPORTS PHENOMENA IN HIGH TEMPERATURE YBa2Cu3OX SUPERCONDUCTORS STIMULATED BY HEAT TREATMENT
Abstract
Research has been conducted about the temporal evolution of the electric transport features of high-temperature superconducting polycrystals YBa2Cu3OX at liquid nitrogen temperature, taking into account the dependence of the resistivity on the transport current in the range 0.1 300 mA. It is stated that, as the temperature of the onset of the transition to the superconducting state Tcon, the resistivity r(78k) for two years after heat treatment, depending on time, show non-monotonic behavior and are not always observed in phase. It revealed that during this time, a positive magnetic resistance was observed in the sample due to the magnetic field of the transport current. However a year after heat treatment in the intermediate range of currents 22 mA Keywords and phrase: High-temperature superconductor (HTSC), superconducting (SC) transition, SC onset transition temperature (ΤCon), reistivity, magnetoreistivity.
ANZHELA SARGSYAN
Armenian State Pedagogical University after Kh.Abovyan
''Chess'' Scientific Research Institute, Researcher
ARMINE KHACHATRYAN
PhD in Psychology, Associate Professor
PSYCHOLOGICAL STUDIES OF THE "BEST PRACTICE" OF CHESS TEACHERS
Abstract
The article presents the level of critical thinking and work motivation of chess teachers with “best experience’’. During experimental psychological research, a critical thinking questionnaire (authoring) and Herzberg's Motivational Structure Test were used. The survey showed that 62% out of the 45 surveyed chess teachers had critical thinking. As a result of applying the Herzberg motivational structure test, 75% of the surveyed 45 chess teachers interviewed dominated the internal motives during their working life, while 25 per cent dominated the external ones.
Thus, the presence of the aforementioned professional competencies of teachers with the “best experience” in chess teaching contributes to the effectiveness of the educational process.
Keywords and phrases: Subject “Chess”, critical thinking, motivation, competence.
BENIK YERIBEKYAN
Applicant at Armenian State Pedagogical University after KH. Abovyan
RHETORIC AND MANIPULATION DURING THE PANDEMIC. А STUDY OF RHETORICAL PRACTICES BASED ON THE STATEMENTS OF BRITISH PRIME MINISTER BORIS JOHNSON
Abstract
At present, we are forced to encounter many uncertainties and challenges which we did not have in the past. In this context, special attention is paid to fake information. The latter, combined with the relevant rhetoric practices becomes a serious tool in terms of influencing the public consciousness. Furthermore, the flow of information that we receive needs to be recycled and harnessed competently. Taking into consideration the fact that nowadays we have too much manipulative information in social media and network, we need to be more attentive and careful. The theme of coronavirus is exponential. In the current article, the manipulative informational process around coronavirus is discussed. The article also touches upon the issue of its possible impact on human and public consciousness and the kind of behavioural reactions it may raise in connection with this influence.
Keywords and phrases: Covid-19, manipulative process, fake, information, rhetorical idioms.
KAREN SARGSYAN
PhD in Economic Sciences, Associate Professor
THE ISSUE OF OVERCOMING ECONOMIC CRISIS CAUSED BY CORONAVIRUS PANDEMIC IN ARMENIA
Abstract
The economic crisis caused by the coronavirus epidemic is unique since its consequences are difficult to predict. Governments in almost every country in the world have tried, and are still trying to find the right balance between saving lives and saving national economies. The most effective way to overcome the current economic crisis is to inject sufficient liquidity into the economy, which will help to avoid a sharp decline in both supply and aggregate demand; otherwise, the economy will inevitably end up in a long period of decline. To overcome the economic crisis, theGovernment of the Republic of Armenia developed and implemented several anti-crisis measures, which were not highly efficient due to small allocations for anti-crisis measures, as well as due to narrow range of beneficiaries. In order to overcome the effects of the economic crisis caused by Covid-19 and to increase the effectiveness of state anti-crisis measures, the article presents clear criteria for selecting the main directions of anti-crisis actions, that can be used in developing current and future anti-crisis policies.
Keywords and phrases: Economic crisis, Coronavirus pandemic, financial support, government, anti-crisis measures.
NAIRA HAKOBYAN
Doctor of Psychological Sciences, Professor
ANNA KHACHATRYAN
PhD in Psychology
METHODOLOGICAL APPROACHES TO THE STUDY OF PERSON’S IDENTITY
Abstract
This article indicates some methodological approaches to the study of a person's identity. The issues of a person's identity are discussed in the context of the identification of a person with the outside world. Therefore, these questions are of both scientific and practical importance. The phenomenon of “identity” acts as a powerful lever of socio-psychological development, integration and self-realization of the individual (Lebedeva, 1996, p.25-26). Reflecting on the socio-psychological characteristics of the personality, numerous questions are raised on the study of ethnic and religious I-images of the personality. The semantic parallels of the research are especially emphasized.
Keywords and phrases: Identity, sign system, I-image, ethnic identity, religious identity.
TIGRAN ZARGARYAN
PhD in Technical Sciences
HRACHYA ASTSATRYAN
PhD in Technical Sciences
MATEUSZ MATELA
Poznan Supercomputing and Networking Center of the Institute of Bioorganic Chemistry,
Polish Academy of Sciences Researcher
ARMENIAN RESEARCH & ACADEMIC REPOSITORY IN ACTION: TOWARDS CHALLENGES OF THE 21ST CENTURY
Abstract
The history of automation and computerization of Armenian libraries fulfilled its 30 years – a time with many achievements, also failures, and a time for opening new horizons for international cooperation. During this period, Armenia moved from the centralized economy management system to the market- based economy. Libraries are also in a renovation and cardinal reconstruction process. This article presents the current state in the field of library automation in Armenia, describes the evolution and challenges faced by the library community on its difficult way to the digitization. Activities of the Fundamental Scientific Library of the National Academy of Sciences of Armenia on implementing innovative ICT technologies and introducing R&D outputs to foster and improve digitization and long term preservation of fragile printed materials is provided.
Keywords and phrases: Digital libraries, cultural heritage, mass digitization, preservation.
