Year XXVII, Issue 6, 2018<<Archive>>
Еducаtion: Thеory & Prаcticе
HEALTH AND ENVIRONMENT
The effect of the environment on the human health is discussed in brief. Examples of using medical plants and dietary foods to improve a human health are given.
health; foods; sun rays; nature; environment
LOOKING FOR TALENTED AND GIFTED PUPILS
In this article, the author shares the experience of searching, finding and working with talented and gifted students. The descriptions have been applied at the National Lyceum “Professor Lyubomir Tchakalov” in Sofia.
talented pupils; gifted pupils; science in high school
THE SEMINAR-PRACTICUM IN NON-FORMAL LEARNING – OPPORTUNITIES AND DEVELOPING SKILLS AND CREATIVITY THROUGH THE PRISM OF PHYSICS
The report presents a seminar-practicum, including theory, observation and experimental activity, applicable to teaching Physics and astronomy in Grade 7. Through separate work centers, under the leadership of lecturers and students from Sofia University “...
physics; seminar-practice, education, experiments, students
LEARNING COMMUNITY OF TEACHERS
This article aims to present our work in the established educational community created in the school, the goals we have set ourselves, the activities carried out, the results obtained and the conclusions drawn. When comparing the results obtained, the test...
basic learning; learning community; skills; cooperation; groups
PHYSICS, MAN AND NATURE, AND PUPILS IN OUR DAYS
This paper describes several interdisciplinary lessons, competitions, games and home experiments. All of them were tested in practice with a good success.
interdisciplinary lessons; games; home experiments
DETERMINATION OF EARTH ACCELERATION: AN EXPERIMENTAL TASK
Easy way for experimental determination of the Earth acceleration \(g\) is described.
experimental task; Earth acceleration
MODEL STUDY OF THE MECHANICAL OSCILLATIONS AND WAVES IN HIGH SCHOOL (9 TH GRADE) BY APPLYING THE TEACHING-RESEARCH APPROACH
The aim of this paper is to present the results of educational research undertaken by students from Plovdiv School and associated with the construction of a model for the implementation of the teaching-research approach to studying the topic of mechanical osci...
inquiry-based science education; didactics of physics; mechanical oscillations and waves
ROBOTICS FOR THE BEGINNERS
A Club of robotics was established in the High School of Mathematics in Pleven. This initiative gives good results. The activities of the students in the Club are described in brief in the present article.
robotics; beginners; school
From thе Rеsеаrch Lаborаtoriеs
DESIGN AND DOCKING STUDIES OF HIS-LEU ANALOGUES AS POTENTIOAL ACE INHIBITORS
Bioactive peptides are protein fragments that have a positive impact on body functions and may ultimately influence health. Angiotensin-converting enzyme plays an important role in the control of arterial blood pressure. The main action of Angiotensin II is...
angiotensin-converting enzyme; docking study; short peptides; ACE inhibitors
X-RAY DIFFRACTION STUDY OF \(\mathrm{M}_{2} \mathrm{Zn}\left(\mathrm{TeO}_{3}\right)_{2}\) (M - Na, K) ТELLURIDE
The binary zinc telluride with the s-elements were synthesized by solid-phase method from the tellurium (IV) oxides, zinc and sodium (potassium) carbonates. The types of symmetry, unit cell parameters, X-ray and pycnometric densities of the synthesized co...
binary zinc telluride; solid phase synthesis; X-ray
ELECTROCHEMICAL IMPEDANCE STUDY OF BSCCO (2212) CUPRATE CERAMIC ADDITIVE TO THE ZINC ELECTRODE IN Ni-Zn BATTERIES
Conductive cuprate BSCCO (2212) ceramics, exhibiting superconductivity a low temperatures (80 – 100К) can find other applications as well, such as an additive in the zinc electrode of nickel-zinc batteries. Ni-Zn cells are a potential cheaper alternative...
electrochemical impedance, HTSC ceramics, BSCCO.
CALIBRATION OF GC/MS METHOD FOR DETERMINATION OF PHTHALATES
The calibration of method for determination of phthalates by means of GC/MS was done. The obtained working range for different phthalates is as following: DBP 58.8 – 1175,3 ppb; BBP 75,2 – 1504,6 ppb; DEHP 72,7 – 1454,2 ppb; DOP 59,1 – 1182,2 ppb; DINP 484,5 –...
phthalates; GC/MS; LOD; LOQ; calibration
SONOCHEMICAL SYNTHESIS OF 4-AMINOANTIPYRINE SCHIFF BASES A ND EVALUATION OF THEIR ANTIMICROBIAL, ANTI-TYROSINASE AND DPPH SCAVENGING ACTIVITIES
A series of 4-(substituted benzylidene-amino)-2,3-dimethyl-1-phenyl-3-pyrazoline-5-ones (<b>3a-l</b>) was obtained using sonochemical assisted reaction. The synthesized Schiff bases were evaluated for their antiviral, antibacterial, anticandida, DPPH scave...
4-aminoantipyrine; Schiff bases; mushroom tyrosinase; antimicrobial activity; DPPH scavenging activity
ELECTROSYNTHESIS OF CADMIUM SELENIDE NANOPARTICLES WITH SIMULTANEOUS EXTRACTION INTO P-XYLENE
Colloidal solutions of ~2 nm CdSe nanoparticles have been obtained by electrosynthesis with simultaneous extraction into p-xylene. The effect of electrolyte composition on the structure of electrodeposited CdSe nanoparticles has been established, their absor...
electrosynthesis; CdSe nanoparticles; colloidal solution
SYNTHESIS AND CHARACTERIZATION OF NOVEL HETEROCYCLES WITH ANTICIPATED ANTIMICROBIAL ACTIVITIES FROM PYRANOPYRAZOLE DERIVATIVE
The previously reported 6-amino-4-(4-chlorophenyl)-3-methyl-1,4dihydropyrano [2, 3-c] pyrazole-5-carbonitrile 1 was prepared and utilized as a precursor for novel heterocycles such as Benzoxazinone 4, Pyrazolopyranopyrimidines 8, 9, 12, 13 and 20 tetrazol...
pyrazolopyranooxazinones; pyranopyrimidines; triazolopyrimidines tetrazolopyrimidines and pyrazolopyranopyrimidinthion