Year XXIV, Issue 5, 2015<<Archive>>
Tеаching Еfficiеncy
MULTIMEDIA TESTS IN GEOGRAPHY
In recent years the practice of national competitions, festivals and Geography Olympiads has included multimedia tests. Both sructuring of these tests and their use for an objective assessment of knowledge and skills of students still remain methodical „terr...
geography education, multimedia tests, geography olympiads and competitions, matriculation exams
REMOTE ASTRONOMICAL OBSERVATIONS – INNOVATION IN ASTRONOMY EDUCATION
The article shows the advantages of the remote astronomical observations as a new approach for astronomical education. We present the results of our remote astronomical observations with the Faulkes telescopes in the real educational process. This research-b...
interactive educational methods, telescopes, astronomical observations
IRANIAN UNIVERSITY STUDENTS’ PERCEPTION OF CHEMISTRY LABORATORY ENVIRONMENTS
This article reports the development, validation and application of a Persian version of the Science Laboratory Environment Inventory (SLEI). The SLEI was carefully translated into Persian and field tested with a sample of 311 Iranian university students in 2...
chemistry laboratory environment, SLEI, learning environments research, satisfaction
From thе Rеsеаrch Lаborаtoriеs
APPLICATION OF LASER INDUCED BREAKDOWN SPECTROSCOPY AS NONDESDUCTRIVE AND SAFE ANALYSIS METHOD FOR COMPOSITE SOLID PROPELLANTS
Nowadays many methods have been proposed for the analysis and evaluation of the energetic materials and their properties. In this work, laser induced breakdown spectroscopy (LIBS) as a new method was introduced as a safe and nondestructive analysis method t...
Laser Induced Breakdown Spectroscopy (LIBS), solid composite propellant, HTPB, safety
THE EFFECT OF DIOCTYLPHTHALATE ON INITIAL PROPERTIES AND FIELD PERFORMANCE OF SOME SEMISYNTHETIC ENGINE OILS
Several semisynthetic engine oils containing solvent neutral-150 (SN-150) and solvent neutral-500 (SN-500) as mineral constituent and di-2-ethyl-hexylphthalate (DOP) as synthetic constituent has been formulated. Physical properties of the prepared oils have b...
lubricants, SN-150, SN-500, ester, DOP, engine oils, ICP-OES, engine oil, biodegradability, wear