Natural Science and Advanced Technology Education

Todor M. Mishonov, Aleksander P. Petkov, Matteo Andreoni, Emil G. Petkov, Albert Varonov, Iglika M. Dimitrova, , Leonora Velkoska, Riste Popeski-Dimovski

PROFESSIONAL DISPOSITIONS OF GRADUATE PRE-SERVICE MATHEMATICS TEACHERS AMONG THREE COLLEGE OF TEACHER EDUCATION IN ETHIOPIA

Anteneh Tefera, Mulugeta Atnafu, Kassa Michael

MAIN DIDACTIC ASPECTS RELATED TO THE APPLYING OF STEM TECHNOLOGY IN SCIENCE EDUCATION

Hristina Petrova

DEVELOPMENT OF THE HYPOTHESES FOR THE BIOCHEMICAL ORIGIN OF LIFE

Zdravka Kostova

Issue 2

INVESTIGATION OF \(^{238}\)U, \(^{234}\)U AND \(^{210}\)PO CONTENT IN SELECTED BULGARIAN DRINKING WATER

Bozhidar Slavchev, Corresponding author: Elena Geleva, Blagorodka Veleva, Hristo Protohristov, Lyuben Dobrev, Desislava Dimitrova, Vladimir Bashev, Dimitar Tonev

THE REFLECTIVE SKILL – CONSTRUCTIVE-PROGNOSTIC ANALYSIS IN METHODOLOGICAL CONTEXT

Natasha Tzanova, Nadezhda Raycheva, Isa Hadjiali

METHODOLOGICAL FRAMEWORK TO DEVELOP MEANING FORMATION CATEGORIES IN METHODOLOGY OF BIOLOGY EDUCATION

Nadezhda Raycheva

FIRST STEPS IN QUANTUM PHYSICS: BASICS – 2. MODEL EXAMPLES (SQUARE WELLS)

Mihail Avramov, Dimitar Marvakov

FUNCTIONAL ANALISIS OF DESING OF PEDAGOGICAL DECISION AS PROFESIONAL SKILL

Nadezhda Raycheva

A STUDY ON REFLECTION WITH 15 – 17 YEAR OLDS IN SCHOOL BIOLOGY EDUCATION IN AN INTELLECTUAL AND PERSONALITY ASPECT

Isa Hadjiali

Issue 1

EDITORIAL

Nikolay Denkov

REVEAL THE POTENCY OF WATER HYACINTH AND RED GINGER EXTRACT AS HYDROGEL WOUND DRESSING FOR MRSA DIABETIC WOUND: A SHORT REVIEW

Maulidan Firdaus, Muhammad Iqbal Daniswara, Khoirul Jamaluddin, Novi Andriani

DEMONSTRATION OF DAMPED ELECTRICAL OSCILLATIONS

Elena Grebenakova Stojan Manolev, Stojan Manolev

LABORATORY EXERCISES IN E-LEARNING ENVIRONMENT. ADVANCED KITCHEN CHEMISTRY

Nasko Stamenov

BE CAREFUL, IF YOU LEARN GEOGRAPHY FOR 8TH GRADE WITH „UCHA.SE“

Ivan Drenovski

ALIGNMENT OF ETHIOPIAN PRIMARY SCHOOL PRE-SERVICE TEACHER EDUCATION PROGRAM WITH THAT PRIMARY SCHOOL MATHEMATICS CONTENTS/SYLLABI

Anteneh Tefera, Mulugeta Atnafu, Kassa Michael

POSSIBILITIES OF THE INQUIRY-BASED APPROACH FOR FORMATION OF THE KEY COMPETENCES IN SECONDARY SCHOOL CHEMISTRY EDUCATION

Antoaneta Angelacheva

APPLICATION OF COMPUTER PLANETARIUMS IN ASTRONOMY EDUCATION

Ana Atanasova

Year XXIX, 2020

Issue 6

EYE COLOUR INHERITANCE IN HUMANS

Viktor Gilin

THE SUCCESSFUL TURNOVER OF PHOTOSYSTEM II CORE COMPLEXES USING LASER FLASH ILLUMINATION

Bernard Baituti

USING MOLECULAR MODELS TO NAME AND ILLUSTRATE STRUCTURES OF MONOCYCLIC COMPOUNDS

Claudia Quayson, Ruby Hanson

VAN DE GRAAFF GENERATOR FOR THE PHYSICS CLASSROOM

Gorazd Blazeski, Vera Zoroska (Corresponding Author)

ECONOMIC GEOGRAPHY: FROM DESCRIPTION TO FORECASTING AND PRACTICAL ALTERNATIVES

Boian Koulov

INTEGRATION OF ONLINE RESOURCES ON ASTROBIOLOGY IN THE EDUCATION ON ASTRONOMY IN UPPER SECONDARY EDUCATION

Desislava Antonova, Vladimir Bozhilov (Corresponding Author)

DR. MARCHEL KOSTOV, ASSOC. PROF. – LIFE AN WORK

Zdravka Kostova, Elena Georgieva

Issue 5

STUDIES ON THE NUCLEATION AND GROWTH OF CRYSTALS

Christo N. Nanev

ON THE STRUCTURE AND EVOLUTION OF TWO-DIMENSIONAL SOAP FOAM, ENCLOSED BETWEEN GLASS SHEETS

Yavor Yordanov

APPLIED SAMPLING METHODOLOGY AND ANALYSIS OF NONLINEAR ACOUSTIC PROPERTIES IN SOLIDS OF REVOLUTION

G.I. Ivanov

MEASURING THE COLLISION TIME OF A BALL WITH HIGH COEFFICIENT OF RESTITUTION

Vasil Nikolov

MULTIPLE PERSPECTIVES ON ACADEMIC LABORATORY SAFETY COURSE IN COLLEGE SCIENCE EDUCATION

B.H.S. Thimmappa

DEVELOPMENT OF THE COGNITIVE INTEREST IN PHYSICS AND ASTRONOMY THROUGH NON-FORMAL EDUCATION

Ivo Jokin

THEATER OF PHYSICS OR PHYSICS IN THEATER?

Radka Kostadinova

Issue 4

TEACHING PHASES OF THE MOON WITH A ROLE PLAY

Mehmet Karakas

MODEL FOR USING CLOUD TECHNOLOGIES IN INTERDISCIPLINARY PROJECT IN CHEMISTRY AND ENVIRONMENTAL PROTECTION

Kalina Ivanova

COMPARISON OF INTERACTIVE METHODS IN TEACHING PHYSICS AND ASTRONOMY IN GRADE 10, LEVEL I

Nina Atanasova Taneva, Vladimir Bozhilov

ATTENUATION EFFECT IN ALIPHATIC ACIDS EXTENDED TO ALKANES THE CARBON ACIDS VIA THE ALIPHATIC ALCOHOLS: AN EDUCATIONAL PERSPECTIVE IN CHEMISTRY

R. Sanjeev, V. Jagannadham

JACOB’S LADDER FOR THE PHYSICS CLASSROOM

Kristijan Shishkoski Vera Zoroska, Vera Zoroska

SCHOOL CHEMISTRY LABORATORY: OXYGEN PRODUCTION

B.V. Toshev

ECHO FROM THE PAST: THE ACTIVE SCHOOL

B.V. Toshev

COMPARATIVE PERFORMANCE AND DIGESTIBILITY OF NUTRIENTS IN AFSHARI AND GHEZEL RAM LAMBS

Morteza Karami, Fardis Fathizadeh, Arash Yadollahi, Mehran Aboozari, Yaser Rahimian, Reza Alipoor Filabadi

AROMATIC AND MEDICINAL PLANTS AND THEIR USE OF THE MASSMOUDA REGION NORTHERN MOROCCO

Miloudi Hilali

CALCIUM, PHOSPHOROUS AND OTHER FACTORS IN THE BONE HEALTH

Radka Tomova, Svetla Asenova, Pavlina Koseva

Issue 3

CONTENT AND LANGUAGE INTEGRATED LEARNING APPLIED TO TEACHING CHEMISTRY: A CASE STUDY FROM EASTERN EUROPE

Lino Bianco, Irina Andonova

IS ARGUMENTATIVE DRIVEN INQUIRY (ADI) THE FUTURE OF SCIENCE CLASSROOM?

James E. Hollenbeck, Michell Evans

SCIENCE DOMAIN IN PISA 2015: QUESTIONNAIRE DATA AND CONCLUSIONS

A. Tafrova-Grigorova

SCIENCE FICTION TO PROMOTE SCIENCE: LEARNING LITERACY AND SOCIAL UNDERSTANDING

James E. Hollenbeck

A STUDY OF ABILITY TO OPERATE IMAGES OF THE HUMAN ENVIRONMENT (MENTAL MAPS) OF STUDENTS OF PEDAGOGICAL SPECIALTIES

Marian Georgiev Delchev

STUDENTS AND THEIR TEACHERS: MOTIVATION OF LEARNING CHEMISTRY IN SCHOOL

Vesela Todorova

THE DAY OF THE INDUCTANCE: PROBLEMS OF THE 7\(^{TH}\) EXPERIMENTAL PHYSICS OLYMPIAD, SKOPJE, 2019

Todor M. Mishonov, Riste Popeski-Dimovski, Leonora Velkoska, Iglika M. Dimitrova, Vassil N. Gourev, Aleksander P. Petkov, Emil G. Petkov, Albert M. Varonov

MATHEMATICAL MODELING OF 2019 NOVEL CORONAVIRUS (2019 – NCOV) PANDEMIC IN NIGERIA

Sefiu A. Onitilo, Mustapha A. Usman, Olutunde S. Odetunde, Fatai A. Hammed, Zacheous O. Ogunwobi, Hammed A. Haruna, Deborah O. Daniel

USE OF THE GRAPHICAL METHOD TO STUDY UNIFORMLY ACCELERATED MOTION

Hristina Petrova

Issue 2

DOC. DR. SVOBODA BENEVA AT 80

Maria Dobreva

VIGORIA FOUNDATION AWARDS FOR 2020

Maria Dobreva

THE REFLECTIVE APPROACH AND STUDENTS’ UNDERSTANDINGS ABOUT THE NATURE OF SCIENCE IN 10TH – 11TH GRADE BIOLOGY EDUCATION

Mimya Dokova-Koldanova, Teodora Kolarova, Ivaylo Lalkov

STUDY OF PUPILS’ OPINION ABOUT THE USE OF CONSTRUCTIVIST METHODS IN TEACHING AND LEARNING BIOLOGY

Tatyana Tsankova

SODIUM-POTASSIUM PUMP AND BIOELECTROGENESIS IN TEACHING PHYSIOLOGY: MISCONCEPTIONS AND NEW DIDACTIC APPROACH

Petar Raychev

PHARMACOKINETICS, DRUG-LIKENESS, MEDICINAL PROPERTIES, MOLECULAR DOCKING ANALYSIS OF SUBSTITUTED Β-LACTAMS SYNTHEZIED VIA [BMIM][PF6]/]ET\(_{3}\)NH] +[HSO\(_{4}\)] CATALYZED COUPLING REACTION

A. M. Ghatole, Mahesh K. Gaidhane, Kushal R. Lanjewar, Kishor M. Hatzade

IWAN N. STRANSKI: MYTH AND MAN

Boian Mutaftschiev

HYDROGEN – MOST ENVIRONMENTALLY FRIENDLY FUEL

Miglena Slavova, Radka Tomova

Issue 1

THE SCIENTIFIC RECOGNITION

B.V. Toshev

PHYSICS AROUND US: THE HONEY

Penka Vasileva

THE PLEASURE MOLECULES

Vesselina Yankova, Snezhana Demirova, Tsvetanka Miteva, Yavor Knyazov, Hristo Zhelev, Dimitar Georgiev, Gabriela Stoyanova

OUT-OF-CLASS ACTIVITIES IN THE SCHOOL: LETTER FROM A TEACHER

Petya Hristova Nikolaeva

WATER PURIFICATION WITH LASER RADIATION

Lyubomir Lazov, Hristina Deneva, Galina Gencheva

OBSERVATION OF METEOR SHOWERS

Silvia Petrova

GENERAL ASSESSMENT OF THE EFFICIENCY OF ACTIONS FOR ACHIEVING OPTIMAL TRAINING ENVIRONMENT, RESEARCH, INNOVATION AND SUSTAINABLE DEVELOPMENT OF HUMAN CAPITAL IN THE CHEMICAL SCIENCES SPHERE

Ivayla Pancheva, Miroslava Nedyalkova, Petko Petkov, Hristiyan Aleksandrov, V. Simeonov

ONE LESSON ON DE BROGLIE WAVES

Dimitar Marvakov, Mihail Avramov

ROBERT COLLEGE – THE FIRST AMERICAN COLLEGE AROUND THE WORLD

Ilia Emilov

FIRST STEPS IN QUANTUM PHYSICS: BASICS – 1. METHOD

Mihail Avramov, Dimitar Marvakov

PHYSICOCHEMICAL SCHOOL OF ROSTISLAV KAISCHEW IN THE PERIOD 1950 – 1957: REMINISCENCES OF A WITNESS

Boyan Mutaftcschiev

STUDY OF THE ATTITUDES OF BULGARIAN TEACHERS IN SCIENCE FOR THE APPLICATION OF COMPUTER TECHNOLOGIES IN CLASS

Milena Kirova, Nelly Kirkova-Kostova

Year XXVIII, 2019

Issue 6

48TH NATIONAL CONFERENCE OF CHEMISTRY TEACHERS

Elena Boiadjieva

DIGITALIZATION OF EDUCATION: NECESSITY AND PROBLEMS

Zdravka Kostova

LASER MICRO-PERFORATION AND FIELDS OF APPLICATION

Hristina Deneva, Lyubomir Lazov, Edmunds Teirumnieks

ELABORATION OF A LAB EXERCISE TO ANALYZE THE CHARACTERISTICS OF PHOTOVOLTAIC PANELS THROUGH A V-I ELECTRONIC UNIT

Dragomir Kolev Gospodinov, D. A. Zlatanski, S. I. Sotirov

CHITOSAN/ALGINATE COMPLEXES PREPARED BY JET MIXING

Maria Georgieva Marudova, Sotir Sotirov, Bisera Pilicheva

APPLIED PHOTONICS AND ANTIOXIDANT PROPERTIES OF HIGH OLEIC SUNFLOWER OIL WITH HERBS

Krastena Nikolova, Stefka Minkova, Poli Radusheva, Georgi Boshev, Erkan Faridin, Nural Dzhambazov, Mariana Perifanova-Nemska

THE DIFFUSION AS A BASE OF DIALYSIS

Berna Sabit, Dzhemile Dervish, Maya Nikova, Iordanka Eneva

IN VITRO EVALUATION OF THE ANTIOXIDANT PROPERTIES OF OLIVE LEAF EXTRACTS – CAPSULES VERSUS POWDER

Hugo Saint-James, Gergana Bekova, Zhanina Guberkova, Nadya Hristova-Avakumova, Liliya Atanasova, Svobodan Alexandrov, Trayko Traykov, Vera Hadjimitova

MODEL FOR CONTENTIVE AND TECHNOLOGICAL INTEGRATION APPLIED IN ENVIRONMENTAL EDUCATION

Claida Doychinova, Nadezhda Raycheva

REMARKS ON THE NORMATIVE PROVISION OF THE PROCESS OF LEARNING IN SCHOOL

Radoslav Angelov, Silvia Traykova

ANALYSIS OF THE RESULTS OF THE EXTERNAL ASSESSMENT OF ‘GEOGRAPHY AND ECONOMY’, 5TH GRADE – YEARS 2017 AND 2018

Ivan Drenovski, Iliana Ruseva

PARACELSUS IN THE HISTORY OF CHEMISTRY, MEDICINE AND PHARMACY

Nano Stepanov

2019 − THE INTERNATIONAL YEAR OF THE PERIODIC TABLE OF CHEMICAL ELEMENTS

Maria Atanassova, Radoslav Angelov, Dessislava Gerginova, Alexander Zahariev

TECHNOLOGY

B.V. Toshev

Issue 5

PROSPECTIVE SCIENCE TEACHERS UNDERSTANDING OF KINEMATIC GRAPHS IN COLLABORATIVE SOCRATIC QUESTIONING COURSE ACCOMPANIED BY WEB-BASED FORMATIVE ASSESSMENT

Intan E. Kirana, Sentot Kusairi, Arif Hidayat

VISUALIZATION AS A COMPONENT OF THE EDUCATIONAL PROCESS IN THE COURSE OF ANALYTICAL CHEMISTRY FOR STUDENTS OF TECHNOLOGICAL SPECIALTIES

Tatyana Kudyrko, Elena Tomashova

GREEN CHEMISTRY IN THE SCHOOL LABORATORY

Aleksandriya Gendzhova, Maya Tavlinova-Kirilova, Alexandria Gendjova Alexandra Kamusheva

CELEBRATING 96TH ANNIVERSARY OF PROF. DR. ELENA KIRKOVA: AN INTERVIEW

Adriana Tafrova-Grigorova

EMIL FISCHER (1852 – 1919) : THE GRANDMASTER OF ORGANIC SYNTHESES

Nano Stepanov

ON THE GENETIC TIES BETWEEN EUROPEAN NATIONS

Jordan Tabov, Nevena Sabeva-Koleva, Georgi Gachev

CAN BRING PEOPLE TOGETHER

Nadya Kantareva-Baruh

ACHIEVING EFFECTIVE TEACHING OF MODULE “CHEMICAL KINETICS – CHEMICAL EQUILIBRIUM” WITH THE AID OF AN INTEGRATED WEBSITE

A. Thysiadou, I. Sakla, P. Giannakoudakis

IVAN STRANSKI: THE GRANDMASTER OF CRYSTAL GROWTH

B.V. Toshev

CHEMISTRY EDUCATION: CURRENT BIBLIOGRAPHY (2018)

B.V. Toshev

THE CHILD AND CURRICULA

John Dewey, text supervisor: Prof. B.V. Toshev

Issue 4

CHEMOMETRIC ANALYSIS OF SCHOOL LIFE IN VARNA

Radka Tomova, Petinka Galcheva, Ivajlo Trajkov, Antoaneta Hineva, Stela Grigorova, Rumyana Slavova, Miglena Slavova

THE ATTITUDES OF 13 – 14-YEAR-OLD STUDENTS TOWARDS SCIENCES IN NON-FORMAL EDUCATION

Yavor Kiryakov, Isa Hadjiali, Dimitar Grozev

AN ANALYTICAL EXPERIMENT USING BEER’S LAW FOR A MIXTURE OF TWO DYES

A. E. Burns, N.G. Burns, C. Kramer

SYNTHESIS OF POLY(TETRAHYDROFURAN-CO-EPICHLOROHYDRIN) USING AN ECOLOGIC CATALYST MONTMORILLONITE (MAGHNITE-H+)

Hamam Nabil, Sari Fouad, Ferrahi Mohammed Issam, Belbachir Mohammed

CONSTRUCTION OF JOB’S PLOT IN CASE OF HIGH SPECTRAL OVERLAP BETWEEN THEREACTANTSANDTHECOMPLEX:APPLICATION OF MULTIWAVELENGTH LINEAR REGRESSION ANALYSIS USING THE CU-EDTA SYSTEM

Agha Arslan Wasim, Muhammad Nasiruddin Khan, Muhammad Farooq Wahab, Saba Fazal-ur-Rehman

A NEW EASY METHOD FOR ASSIGNING ABSOLUTE CONFIGURATION WITHOUT THE USE OF MODELS

R. Ramajayam

EQUATIONS USED IN INTRODUCTION OF THE CONCEPT OF RESTING MEMBRANE POTENTIAL IN MODERN TEXTBOOKS OF HUMAN PHYSIOLOGY: TRADITIONS AND ALTERNATIVES

Petar Raychev

SPECTRAL, BIOLOGICAL, MAGNETIC AND CONDUCTANCE STUDIES ON THE COORDINATION COMPOUNDS OFANEWLY SYNTHESIZED THIAZOLIDIN-4-ONE

Dinesh Kumar, Amit Kumar

THE CYCLES OF KREBS

Ivelin Kuleff

FROM THE PRINCIPLE OF LEAST ACTION TO THE CONSERVATION OF QUANTUM INFORMATION IN CHEMISTRY: CAN ONE GENERALIZE THE PERIODIC TABLE?

Vasil Dinev Penchev

POST STAMP DEDICATED TO THE PERIODIC TABLE OF MENDELEEV

Borislav Toshev

INTERDISCIPLINARY INTEGRATION IN SECONDARY SCHOOL

Teodora Kolarova

Issue 3

PRINCIPLES OF THE CAREER DEVELOPMENT OF THE YOUNG SCIENTIST

I. Pancheva, M. Nedyalkova, S. Kirilova, P. Petkov, V. Simeonov

METHODOLOGICAL APPROACH FOR IDENTIFYING TALANTED STUDENTS IN SCIENCE THROUGH JEAN PIAGET’S PHENOMENA AND BINET-TERMAN’S IQ TEST

Milen Zamfirov

TEACHING ACTIVITIES AND ACTIVITY COEFFICIENTS: AN ALTERNATIVE APPROACH

Jamil Ahmad

HIGH-SCHOOL STUDENTS’ MISCONCEPTIONS ABOUT CHEMICAL EQUILIBRIUM

Kiril Atanassov, Alexandria Gendjova

USING MORE REAL LIFE EXAMPLES TO ENHANCE LEARNING IN A GENERAL CHEMISTRY LECTURE

Andrew E. Burns

UTILISATION OF THE STATIC EVANS METHOD TO MEASURE MAGNETIC SUSCEPTIBILITIES OF TRANSITION METAL ACETYLACETONATE COMPLEXES AS PART OF AN UNDERGRADUATE INORGANIC LABORATORY CLASS

Anton Dobzhenetskiy, Callum A. Gater, Alexander T. M. Wilcock, Stuart K. Langley, Rachel M. Brignall, David C. Williamson, Ryan E. Mewis

STUDY OF MOROCCAN PUPILS’ SKILLS IN SOLVING CHEMISTRY PROBLEMS AT FIRST YEAR OF HIGH-SCHOOL

Ali Ouasri

ESTIMATION OF GENOTOXIC EFFECT OF INSECTICIDE CHROMAGOR AT GOLDFISH (CARASSIUS AURATUS) AFTER 5 DAYS OF TREATMENT

Kemajl Kurteshi, Zeqir Shaqiri

BIOACCUMULATION OF CADMIUM IN EDIBLE WILD MUSHROOM (SUILLUS LUTEUS), BULGARIA

P. Papazov, P. Denev

THE 100th ANNIVERSARY OF IUPAC AS AN INTERNATIONAL HUMAN RIGHTS ORGANIZATION FOR CHEMISTS IN 2019: STATUTE, STRUCTURE AND COMPETENCE

Maria Atanassova, Radoslav Angelov

A TALE OF SEVEN SCIENTISTS

Savina Kirilova

Issue 2

DEVELOPMENT OF A LESSON PLAN ON THE TEACHING OF MODULE “WATER CONDUCTIVITY”

A. Thysiadou, S. Christoforidis, P. Giannakoudakis

CHEMISTRY STUDENTS’ DIFFICULTIES IN LEARNING OXIDATION-REDUCTION REACTIONS

Kenneth Adu-Gyamfi, Joseph Ghartey Ampiah

EXPLORING THE VISION OF STUDENTS IN PEDAGOGY ON THE ROLE OF STUDYING SEASONAL CHANGES FOR BUILDING THE FOUNDATIONS OF NATURAL EDUCATION IN I - IV GRADE

Vanya Petrova, Marian Delchev

FORMATION OF KEY COMPETENCES IN THE CLASSES OF “BIOLOGY AND HEALTH EDUCATION”, IX GRADE, THROUGH USING INTERACTIVE METHODS

Rositsa Davidova, Krasimira Tomeva, Maria Boycheva

AMPEROMETRIC NITRIC OXIDE SENSOR BASED ON MWCNT CHROMIUM(III) OXIDE NANOCOMPOSITE

Arsim Maloku, Epir Qeriqi, Liridon Berisha, Ilir Mazreku, Tahir Arbneshi, Kurt Kalcher

CORROSION BEHAVIOR OF ALUMINIUM ALLOYS EN AW-6026 AND EN AW-6082

Kalina Kamarska

THE EFFECT OF AGING TIME ON Mg/Al HYDROTALCITES STRUCTURES

E. Heraldy, Triyono, Sri Juari Santosa, Karna Wijaya, Shogo Shimazu

THE PERIODIC TABLE OF CHEMICAL ELEMENTS: ITS HISTORY AND ITS UP-TO-DATE STATUS

Ivan L. Dukov

Issue 1

2019: TWO IMPORTANT EVENTS

B.V. Toshev

A CONTENT ANALYSIS OF THE RESULTS FROM THE STATE MATRICULATION EXAMINATION IN MATHEMATICS

Elena Karashtranova, Nikolay Karashtranov, Vladimir Vladimirov

VARIANTS OF LEARNING BASED ON CONSTRUCTIVISM

Yurii Klissarov

SOME CONCEPTS FROM PROBABILITY AND STATISTICS AND OPPORTUNITIES TO INTEGRATE THEM IN TEACHING NATURAL SCIENCES

Elena Karashtranova, Nikolay Karashtranov, Nadezhda Borisova, Dafina Kostadinova

REVIEW AND IMPROVED TECHNIQUE OF THE INITIAL RATE METHOD

Patiha, Maulidan Firdaus

\(45^{\text {th}}\) INTERNATIONAL CHEMISTRY OLYMPIAD

D. Tasheva, P. Vasileva

SEMI-EMPIRICAL COMPUTATIONAL STUDY OF THE LIGAND AND ITS METAL COMPLEXES DERIVED FROM 4- AMINOANTIPYRINE AND 2, 4-DIHYDROXY BENZOIC ACID

Satya Narayan Chaulia

ADVANCES OF PHOTOTHERMAL MICROSCOPY OF COMPOSITE MAGNETOELECTRIC NANOLAYERS USING LASER HETERODYNE PROBE

Vasilka Pencheva, Stoyan Penchev, Lyuben Ivanov

CONSIDERATIONS ON DADNE ISOMERS – A DFT TREATMENT

Lemi Türker

6,6’,8,8’-TETRAMETYL-4,4’,7.7’-TETRAHYDROS-7,7’BI-1,2,4,5-TETRAZOCINE-3,3’(2H,2’H)-DITHIONE, A NOVEL HYDRAZONE SCHIFF BASE WITH PROMISING PHARMACOLOGICAL EFFECTS

Manoj Kumar, Anita Rani, Rajshree Khare, Hardeep Singh Tuli, Sunil Arora, Rajendra Kumar

Year XXVII, 2018

Issue 6

HEALTH AND ENVIRONMENT

Kadrie Shukri, Svetlana Velikova, Edis Mehmed

LOOKING FOR TALENTED AND GIFTED PUPILS

Zhana Kyurkchieva

THE SEMINAR-PRACTICUM IN NON-FORMAL LEARNING – OPPORTUNITIES AND DEVELOPING SKILLS AND CREATIVITY THROUGH THE PRISM OF PHYSICS

Assen Pashov, Snezhana Yordanova-Dyulgerova, Bonka Karaivanova-Dolchinkova, Ruska Draganova-Hristova

LEARNING COMMUNITY OF TEACHERS

Stanimira Todorova Savova

PHYSICS, MAN AND NATURE, AND PUPILS IN OUR DAYS

Rosa Rangelova, Milena Mavrova

DETERMINATION OF EARTH ACCELERATION: AN EXPERIMENTAL TASK

Mariana Anastassova

MODEL STUDY OF THE MECHANICAL OSCILLATIONS AND WAVES IN HIGH SCHOOL (9 TH GRADE) BY APPLYING THE TEACHING-RESEARCH APPROACH

Kostadina Katsarova, Zhelyazka Raykova

ROBOTICS FOR THE BEGINNERS

Daniela Uzunova, Boris Velkovski, Ilko Simeonov, Vladislav Shabanski, Dimitar Kolev

THE DISCIPLINE “THE ORIGIN OF LIFE AND THEORIES OF EVOLUTION” IN THE PROFESSIONAL TRAINING OF THE BIOLOGY TEACHER

Isa Hadjiali

DESIGN AND DOCKING STUDIES OF HIS-LEU ANALOGUES AS POTENTIOAL ACE INHIBITORS

Rumen Georgiev, Tatyana Dzimbova, Atanas Chapkanov

X-RAY DIFFRACTION STUDY OF \(\mathrm{M}_{2} \mathrm{Zn}\left(\mathrm{TeO}_{3}\right)_{2}\) (M - Na, K) ТELLURIDE

Kenzhebek T. Rustembekov, Mitko Stoev, Aitolkyn A. Toibek

ELECTROCHEMICAL IMPEDANCE STUDY OF BSCCO (2212) CUPRATE CERAMIC ADDITIVE TO THE ZINC ELECTRODE IN Ni-Zn BATTERIES

A. Vasev, P. Lilov, G. Ivanova, Y. Marinov, A. Stoyanova, V. Mikli, A. Stoyanova-Ivanova

CALIBRATION OF GC/MS METHOD FOR DETERMINATION OF PHTHALATES

N. Dineva, I. Givechev, D. Tanev, Dancho Danalev

SONOCHEMICAL SYNTHESIS OF 4-AMINOANTIPYRINE SCHIFF BASES A ND EVALUATION OF THEIR ANTIMICROBIAL, ANTI-TYROSINASE AND DPPH SCAVENGING ACTIVITIES

Maya G. Chochkiva (Corresponding author), Boyka Stoykova, Iva Romanova, Petranka Petrova, Iva Tsvetkova, Hristo Najdenski, Lubomira Nikolaeva- Glomb, Nadya Nikolova, Galya Ivanova, Atanas Chapkanov, Tsenka Milkova, Martin Štícha, Ivan Nemec

ELECTROSYNTHESIS OF CADMIUM SELENIDE NANOPARTICLES WITH SIMULTANEOUS EXTRACTION INTO P-XYLENE

S. S. Fomanyuk, V. O. Smilyk, G. Y. Kolbasov, I. A. Rusetskyi, T. A. Mirnaya

SYNTHESIS AND CHARACTERIZATION OF NOVEL HETEROCYCLES WITH ANTICIPATED ANTIMICROBIAL ACTIVITIES FROM PYRANOPYRAZOLE DERIVATIVE

H.M.F. Madkour, O.E.A. Mostafa, E.A. El-Bordany, El-Ziaty, M. Nabil

BIOLOGICA L ASPECT OF RECANALIZATION WITH VENOUS THROMBOLISIS

Mariela Filipova, Daniela Popova, Stoyan Vezenkov

Issue 5

IMМOBILIZATION OF FRUCTOSYLTRANSFERASES ON COMPOSITE FILMS OF POLYLACTIC ACID, XANTHAN AND CHITOSAN

Ilia Iliev, Tonka Vasileva, Veselin Bivolarski, Asya Viraneva, Ivan Bodurov, Maria Marudova, Temenuzhka Yovcheva

ELECTRICAL IMPEDANCE SPECTROSCOPY OF GRAPHENE-E7 LIQUID-CRYSTAL NANOCOMPOSITE

Todor Vlakhov, Yordan Marinov, Georgi Hadjichristov, Alexander Petrov

SURFACE PHOTOVOLTAGE SPECTROSCOPY CHARACTERIZATION OF GAASSBN LAYERS GROWN BY LIQUID-PHASE EPITAXY

S. Georgiev, V. Donchev, M. Milanova

ON THE POSSIBILITY TO ANALYZE AMBIENT NOISERECORDED BYAMOBILEDEVICETHROUGH THE H/V SPECTRAL RATIO TECHNIQUE

Dragomir Gospodinov, Delko Zlatanski, Boyko Ranguelov, Alexander Kandilarov

RHEOLOGICAL PROPERTIES OF BATTER FOR GLUTEN FREE BREAD

Gabor Ivan Zsivanovits, D. Iserliyska, M. Momchilova, M. Marudova

THE EFFECT OF HYDROCOLLOIDS CONCENTRATION ON THE PHYSICAL PROPERTIES OF GLUTEN-FREE CAKE

D. Iserliyska, Gabor Zsivanovits, Maria Marudova

POLYELECTROLYTE COMPLEX FORMATION OF CHITOSAN AND CASEIN

Antoaneta Marinova, T. A. Yovcheva, Asya Viraneva, Ivan Bodurov, Mariya Marudova

DISTRIBUTION OF LAMB WAVES IN AlScN RESONATOR STRUCTURES

Boris Nedyalkov, Evgenia Valcheva

CHEMILUMINESCENT AND PHOTOMETRIC DETERMINATION OF THE ANTIOXIDANT ACTIVITY OF COCOON EXTRACTS

Y. Evtimova, V. Mihailova, L. A. Atanasova, N. G. Hristova-Avakumova, Mihail Panayotov, Vera Hadjimitova

INTERDISCIPLINARY LECTURES – A CHALLENGE FOR STUDENTS AND EDUCATORS

Yuliana Belcheva, Radostina Zaharieva

RESEARCH-LIKE STUDENT LAB

Ivelina Dimitrova, Gosho Goev, Savina Georgieva, Tsveta Tsanova, Lyubomira Ivanova, Borislav Georgiev

HISTORICAL DEVELOPMENT OF THE CONCEPTIONS OF REVERSIBILITY AND CHEMICAL EQUILIBRIUM – A BASE FOR THEIR TEACHING AND LEARNING

Kiril Atanassov, Alexandria Gendjova

INSTRUMENTS FOR USING THE CHEMICAL EXPERIMENT AND SELF-ASSESSMENT IN THE STRATEGIES FOR ACTIVE TEACHING IN MAN AND NATURE SUBJECT

Kalina Ivanova

METHYL, THE SMALLEST ALKYL GROUP WITH STUNNING EFFECTS

Saâd Moulay

THE FOURTH STATE OF MATTER

Roumen Tsekov

НОВИ ИЗМЕРЕНИЯ НА УЧЕНЕТО: СИНТЕЗ НА ИНОВАЦИИ И ТРАДИЦИИ

Liubomir S. Georgiev

Issue 4

JUBILEE: MILKA DZHIDZHOVA, A TEACHER

Maria Dobreva

OUR EXPERIENCE IN ASTRONOMY LEARNING

Svejina Dimitrova

PARAMETRIC INTERACTION OF OPTICAL PULSES IN NONLINEAR ISOTROPIC MEDIUM

Anelia Dakova, V. Slavchev, D. Dakova, L. Kovachev

INVESTIGATION OF POLYMER MATERIALS BY MEANS OF ELECTRO-ACOUSTICAL PULSE-ECHO METHOD AND EDDY CURRENT METHOD

Radostin Kasarov, Samuil Dinev

UNIFYING THE ANALYTICAL SOLUTIONS OF THE GEODESIC EQUATIONS IN BONDI-GOLD-HOYLЕ UNIVERSE MODEL

Plamena I. Marcheva, Diana Y. Dakova, Stoil Ivanov Ivanov

GAMMA RADIATION AND ITS EFFECT ON DEOXYRIBONUCLEIC ACID

Mirela Vacheva, Hari Stefanov, Yoana Gvozdeykova, Yordanka Dimitrova Eneva

RADIATION PROTECTION

Natasha Ivanova Ivanova, Bistra Manusheva

COMPARATIVE ANALYSIS OF CONTAINING NATURAL RADIONLUCLESINTHE HERBS CALENDULAOFFICINALIS L. AND MATRICARIA CHAMOMILLA L.

Siyana Dimova, Tsvetelina Stefanova, Yordanka Eneva, Nina Arhangelova

SOME PHYSICAL FACTORS INFLUENCING THE AZOBENZENE POLYMERS PROPERTIES

Detelina Peneva Ilieva

STABILITY OF EMULSIONS FROM TYPE OIL/WATER WITH CONJUGATED LINOLEIC ACID

I. Milkova-Tomova, D. Buhalova, K. Nikolova, Iordanka Aleksieva, I. Minchev, G. Runtolev

THE EFFECT OF EXTRA VIRGIN OLIVE OIL ON THE HUMAN BODY AND QUALITY CONTROL BY USING OPTICAL METHODS

Carsten Tottmann, Valentin Hedderich, Poli Radusheva, Krastena Nikolova

INFRARED THERMOGRAPHY FOR DIAGNOSTICS OF FOCAL INFECTION

Raia Grozdanova-Uzunova, Todor Uzunov, Pepa Uzunova

THE PHYSICS EXPERIMENT AND ITS ROLE IN FORMING OF PRACTICAL SKILLS INMILITARY STUDENTS

Nikolay Dolchinkov, Bonka Encheva Karaivanova-Dolchinkova

ELECTRICAL PROPERTIES OF POLYLACTIC ACID COMPOSITE FILMS

Asya Petrova Viraneva, Ivan Bodurov, Temenuzhka Yovcheva

NINE HYPOTHETICAL PROBLEMS FOR LINKAGE BETWEEN QUALITATIVE ANALYSIS AND STOICHIOMETRIC CALCULATIONS

Soner Ergül

MATHEMATICAL MODELING AND EFFECT OF ISOTHERMAL DRYING ON MUSHROOM (BOLETUS PINOPHILUS)

M. Ivanova, P. Papazov, L. Dospetliev, N. Katrandzhiev

Issue 3

PHYSICS IS AN EVER YOUNG SCIENCE

Temenuzhka Yovcheva

EMPIRICAL BAYESIAN ESTIMATES OF OPERATIONAL RELIABILITY RELATED TO ELECTRONIC ITEMS FOR MEDICAL PURPOSE

Julia Garipova, Penka Georgieva, Anton Georgiev

INTERNATIONAL ASTRONOMICAL PROGRAM FOR THE SEARCH OF ASTEROIDS – COLLABORATION BETWEEN SCIENTISTS, UNIVERSITY STUDENTS AND HIGH SCHOOL STUDENTS

V. Radeva

THREE IDEAS FOR EFFECTIVE TEACHING

Gergana Karafezieva

OPTICAL PHENOMENA IN NATURE

Teodora Gancheva

THE MAGIC OF CREATIVITY AS A PATH OF SUCCESSFUL LEARNING

Gergana Dobreva, Jacqueline Jekova, Michaela Chonos

EXTRACURRICULAR ACTIVITIES IN ASTRONOMY

Radka Kostadinova

EARLY SCIENCE EDUCATION THROUGH THINKING CARDS

V. Stoyanova, P. Georgieva

INTERACTIVE METHODS AND ENVIRONMENTAL EDUCATION IN TEACHING “MAN AND NATURE” IN GRADES 5 TH – 6TH

Neli Dimitrova, Daniela Dimova

THE DOMINOES GAMES DURING PHYSICS CLASS

Rositsa Kichukova Tsenka Marinova, Tsenka Marinova

„STUDENT SPACE AGENCY“: AN EDUCATIONAL PROGRAM IN ASTRONOMY AND COSMONAUTICS

V. Radeva

DARK MATTER IN THE CLASSROOM

Simona Stoyanova, Aneta Marinova

VISUALIZATIONS IN TEACHING PHYSICS AND ASTRONOMY

Antoaneta Dimitrova

PROBLEMS IN TEACHING PHYSICS AT NIKOLA VАPTSAROV NAVAL ACADEMY

A. Hristova, G. Vangelov, I. Tashev, M. Dimidov

CONSTRUCTING A SYSTEM OF INTERNET-BASED LEARNING RESOURCES IN PHYSICS: EVALUATION OF THE DIDACTIC VALUE

Zhelyazka Raykova, Georgi Vuldzhev, Nataliya Moneva, Neli Komsalova, Ayshe Nabi

COMPETITION IN APPLIED ELECTRONICS FOR MILITARY STUDENTS

Nikolay Dolchinkov (lecturer)

PHOTO AND POSTER COMPETITIONS IN VASIL LEVSKI NATIONAL MILITARY UNIVERSITY – VELIKO TARNOVO

N. Dolchinkov

INNOVATIONS IN THE TREATMENT OF MALIGNENT NEOPLASMS: TREATMENT WITH BRACHYTHERAPY

Georgi Varbanov, Radostin Mihaylov, Denitsa Simeonova, Yordanka Eneva, Paraskev Stoyanov

INFLUENCE OF THE GINGIVAL TISSUES ON THE MEASURED SATURATION LEVEL OF THE DENTAL PULP BLOOD FLOW

Dimitar Kosturkov, Tzonko Uzunov, Pepa Uzunova

NATURAL RADIONUCLIDES IN DRINKING WATER

Natasha Ivanova, Bistra Hristova

Issue 2

ENHANCING QUALITY OF TEACHING AND LEARNING IN THE PROJECT “BONDING THE WORLD WITH CHEMISTRY”

Kalinka Benova, Violeta Konstantinova, Antoaneta Hineva

ECOCLUB IN THE 7 TH SECONDARY SCHOOL – CITY OF BLAGOEVGRAD (BULGARIA)

Iliana Yaneva

PRPJECTS’ METHOD USED TO ENHANCE THE CREATIVE ABILITIES OF PUPILS

D. R. Stankovska

SCIENCE LEARNING IN 5 – 7 GRADES TO FORMING A NATURAL SCIENCE LITERACY

V. Dimitrova, Silviya Popova

BULGARIAN HIGH-SCHOOL STUDENTS’ VIEWS OF THE NATURE OF SCIENCE AND SCIENTIFIC INQUIRY – GENDER ASPECT

Isa Hadjiali, Yordanka Dimova, Zlatka Garova

ADAPTATION OF THE EDUCATION TO THE DAY AFTER

I. Pancheva, M. Nedyalkova, P. Petkov, H. Aleksandrov, V. Simeonov

INVESTIGATING VIEWS OF STEM PRIMARY TEACHERS ON STEM EDUCATION

Prasart Nuangchalerm

TEACHING ELECTRICITY WITH A ROLE PLAY

Mehmet Karakas

STRUCTURAL ELUCIDATION OF UNKNOWNS: A SPECTROSCOPIC INVESTIGATION WITH AN EMPHASIS ON 1D AND 2D \(^{1}\)H NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

Vittorio Caprio, Andrew S. McLachlan, Oliver B. Sutcliffe, David C. Williamson, Ryan E. Mewis

SYNTHESIS AND CHARACTERIZATION OF ALUMINIUM 2024 WITH TUNGSTEN CARBIDE METAL MATRIX COMPOSITE BY IN-SITU METHOD

S. Nallusamy, M. Rajaram Narayanan, S. Saravanan

DETERMINATION OF VITAMINS B AND C IN THE BIOMASS GROWN ON THE OLIVE MILL WASTEWATER IN SYRIA BY HPCL METHOD

Mariam Darakli, Ahmad Malo, Adnan Shhadeh

ALEKSANDЕR HERD’S TEACHING LEGACY IN THE CONTEXT OF THE DEVELOPMENT OF MODERN NATURAL SCIENCES EDUCATION

M. M. Holovkova, Angelina Anatoliivna Korobchenko, Y. I. Popeleshko

j-j COUPLED ATOMIC TERMS FOR NONEQUIVALENT ELECTRONS OF (n-1)f\(^{X}\) nd\(^{1}\) CONFIGURATIONS AND CORRELATION WITH L-S TERMS

P. L. Meena

ОNLINE MATRICULATION Е-TEST IN GEOGRAPHY, CONDUCTED BY SOUTH-WEST UNIVERSITY “NEOFIT RILSKI” – BLAGOEVGRAD

Ivan Drenovski

INTEGRATED ENGINEERING EDUCATION: THE ROLE OF ANALYSIS OF STUDENTS’ NEEDS

Veselina Kolarski, Dancho Danalev, Senia Terzieva

LEARNING IN NATURE AND SCIENCE AND THE FEAR OF FAILURE

Nikolay Tsankov Veska Guyviiska, Veska Gyuviyska

CHEMISTRY TEACHERS’ BOOK (2017)

B.V. Toshev

REFLECTION IN BIOLOGY EDUCATION

Snezhana Tomova

Issue 1

„ПРИРОДНИТЕ НАУКИ В ОБРАЗОВАНИЕТО“ ПРЕЗ 2018 BULGARIAN JOURNAL OF SCIENCE EDUCATION IN 2018

B.V. Toshev

THE SUCCESSFUL TEACHER THROUGH THE PERSPECTIVE OF CONSTRUCTIVIST IDEAS

Vladimir Tsvetkov, Elena Boiadjieva

BULGARIAN HIGH-SCHOOL STUDENTS’ VIEWS ON THE NATURE OF SCIENCE AND SCIENTIFIC INQUIRY

Zlatka Garova, Veska Noncheva, Yordanka Dimova

INTEGRATION OF SCIENCE, TECHNOLOGY, ENGINEERING AND MATHEMATICS: THE MULTIDISIPLINARY APPROACH TO ENHANCE THE ENVIRONMENTAL LITERACY OF PROSPECTIVE CHEMISTRY TEACHERS

Ratna Farwati, Anna Permanasari, Harry Firman, Tatang Suhery

RESULTS OF THE EDUCATION OF PROSPECTIVE BIOLOGY TEACHERS’ STUDENTS FOR FORMATION OF METHODOLOGICAL SKILLS FOR WORK WITH INTERACTIVE METHODS

M. Boycheva, Rositsa Davidova, Anita Petrova

EXPERIMENTAL AND COMPUTATIONAL STUDY OF Co(II), Ni(II), Cu(II) AND Zn(II) COMPLEXES WITH THE AZO DYE DERIVED FROM 2-AMINO-4-METHYL PYRIDINE AND \(\beta\)-NAPTHOL

S.N. Chaulia

ZAGREB CONNECTION INDICES OF \(\mathrm{TiO}_{2}\) NANOTUBES

Sohaib Khalid, Johan Kok, Akbar Ali, Mohsin Bashir

EFFECT OF UNTREATED OLIVE MILL WASTEWATER ON SEED GERMINATION, SEEDLING GROWTH AND BIOCHEMICAL OF MAIZE (ZEA MAYS L.)

Manar Abu-Hassan, Ahmad Malo, Nadim Al-Muhanna

SYNTHESIS OF NEW 3-[(CHROMEN-3-YL) ETHYLIDENEAMINO] -PHENYL] -THIAZOLIDIN-4ONES AND THEIR ANTIBACTERIAL ACTIVITY

Ramiz Hoti, Naser Troni, Hamit Ismaili, Malesore Pllana, Musaj Pacarizi, Veprim Thaçi, Gjyle Mulliqi-Osmani

THE INFLUENCE OF CHANGES IN THE HYDROLOGICAL REGIME OF THE URAL RIVER IN THE WEST KAZAKHSTAN REGION ON FISH RESOURCES

Arkady Kim, Turesh Murzashev, D. A. Tagayev, Zhaskhaiyr Karagoishin

AN EXPERIMENT WITH A MOBILE STATION AND DISPERSION MODELING IN SEARCH OF AN ANSWER TO THE QUESTION WHETHER TRAFFIC IS THE SOURCE OF PEAK GASSING WITH NITROGEN OXIDES OVER STARA ZAGORA, BULGARIA

N. Takuchev, Yanka Stoyanova

Year XXVI, 2017

Issue 6

THE TEACHING METHOD NAMED “STARTER-EXPERIMENT-APPROACH”

Naim Syla, Gezim Hodolli

EMPOWERING STUDENTS’ CHEMISTRY LEARNING: THE INTEGRATION OF ETHNOCHEMISTRY IN CULTURALLY RESPONSIVE TEACHING

Yuli Rahmawati, Achmad Ridwan

“THE BULGARIAN NAMES IN THE SOLAR SYSTEM”– ASTRONOMY EDUCATION WITH THE APPLICATION OF INNOVATIVE METHODS, EMOTIONAL IMPACT AND COMMITMENT

V. Radeva, D. Kjurkchieva

DEVELOPMENT OF SCIENCE LITERACY BY A MODEL OF ACTIVE EDUCATION AND STUDY BY COOPERATION

Margarita Bozova

COMPUTER EDUCATIONAL TECHNOLOGIES IN THE LESSONS TO SOLVING PHYSICS PROBLEMS

Gergana Kalpachka

BALANCING OF OXIDATION-REDUCTION (REDOX) REACTIONS WITH HIGHER BORANES PARTICIPATION: OXIDATION NUMBER METHOD OR MATERIAL BALANCE METHOD?

Ivan Dukov

PROFESSOR ALEXEY SCHELUDKO (1920 – 1995)

D. Platikanov

GEOECOLOGICAL ANALYSIS OF INDUSTRIAL CITIES: ON THE EXAMPLE OF AKTOBE AGGLOMERATION

Zharas Galimzhanovich Berdenov, Erbolat Mendibaev, Talgat Salihov, Kazhmurat Akhmedenov, Gulshat Ataeva

TECHNOGENESIS OF GEOECOLOGICAL SYSTEMS OF NORTHEN KAZAKHSTAN: PROGRESS, DEVELOPMENT AND EVOLUTION

Kulchichan Dzhanaleyeva, Gulnur Mazhitova, Altyn Zhanguzhina, Zharas Galimzhanovic Berdenov, Tursynkul Bazarbayeva, Emin Atasoy

ANTIOXIDANT ACTIVITY, PHENOLS, FLAVONOIDS, FLAVONOLS AND ANTHOCYANINS CONTENT OF TUSSILAGO FARFARA (L. ) GROWING WILD IN KOSOVO

Fatmir Faiku, Arben Haziri, Bleron Faiku

PROF. DIMO PLATIKANOV (1936 – 2017)

B.V. Toshev

СПИСАНИЕ ПРОСВѢТА

B. V. Toshev

Issue 5

47-А НАЦИОНАЛНА КОНФЕРЕНЦИЯ НА УЧИТЕЛИТЕ ПО ХИМИЯ

JOURNALS OF INTEREST: A REVIEW (2016)

B. V. Toshev

TEACHING OF GEOGRAPHY IN 7 TH GRADE: DIFFICULTIES WHEN APPLYING THE NEW EDUCATION LAW

Ivan Drenovski, Iliana Ruseva

HOW SHOULD THE NEW CURRICULUM ON GEOGRAPHY AND ECONOMY FOR THE 8\(^{TH}\) GRADE LOOK LIKE?

Ivan Drenovski, Iliana Ruseva

ON THE PLACEMENT OF HYDROGEN AND HELIUM IN THE PERIODIC SYSTEM: A RESPONSE TO CVETKOVIĆ & PETRUŠEVSKI

Martin Labarca, Akash Strivaths

A COMMENT ON THE SRIVATHS – LABARCA PERIODIC TABLE

Eric Scerri

THE ENJOYMENT – A FACTOR OF WELLBEING IN BIOLOGY EDUCATION

Nina Gerdzhikova

HIGHER EDUCATION IN ENGINEERING AND TECHNOLOGY – THE PRESENT SCENARIO

T. G. Balachandran, S. Sendilvelan

DESIGN OF AN EDUCATIONAL TECHNOLOGY IN ENGINEERING ECOLOGY

Nadia Ilieva, Elena Boiadjieva

DISSIPATION OF HEAT: ESSENTIAL FEATURE OF CYCLIC IRREVERSIBLE PROCESSES

Jamil Ahmad

INVESTIGATING THE ABILITY OF 8\(^{TH}\) GRADE STUDENTS TO DESIGNAN EXPERIMENT THROUGH GUIDELINES AS A PART OF THE NATIONAL CHEMISTRY COMPETITION TEST

Marina Stojanovska, Vladimir M. Petruševski

CONTEXT-BASED STUDENT RESEARCH PROJECT WORK WITHIN THE FRAMEWORK OF THE ANALYTICAL CHEMISTRY COURSE

N. Y. Stozhko, B. Bortnik, A. Tchernysheva, E. Podshivalova

SYNTHESIS OF TiO 2-M (Cd, Co, Mn) AS A PHOTOCATALYST DEGRADATION OF METHYLENE BLUE DYE

Candra Purnawan (сorresponding аuthor), Sayekti Wahyuningsih, Dwita Nur Aisyah

A NOVEL APPROACH FOR KINETIC STUDY OF ALKALINE HYDROLYSIS OF ETHYL ACETATE

Mala Das Sharma, U.S.V.R. Hymavathi

EFFECT OF DIFFERENT CADMIUM CONCENTRATION ON SOME BIOCHEMICAL PARAMETERS IN ‘ISA BROWN’ HYBRID CHICKEN

Imer Haziri, Adem Rama, Fatgzim Latifi, Dorjana Beqiraj-Kalamishi, Ibrahim Mehmeti, Arben Haziri

PHYTOCHEMICAL AND IN VITRO ANTIOXIDANT STUDIES OF PRIMULA VERIS (L.) GROWING WILD IN KOSOVO

Ibrahim Rudhani, Florentina Raci, Hamide Ibrahimi, Arben Mehmeti, Ariana Kameri, Fatmir Faiku, Majlinda Daci, Sevdije Govori, Arben Haziri

ПЕДАГОГИЧЕСКА ПОЕМА (МАКАРЕНКО, 1949)

B. V. Toshev

Issue 4

THE INTELLECTUAL REFLECTION OF 15 – 17 YEARS-OLD STUDENTS IN THE TEACHING OF „BIOLOGY AND HEALTH EDUCATION“: LEVELS AND TRENDS OF DEVELOPMENT

Isa Hadjiali, Teodora Kolarova

CHIMERICAL GROUPS IN SCHOOL AS A SOCIAL AND EDUCATIONAL PHENOMENON

Nikolay Tsankov, Veska Guyviiska

“SYMBOLIC CAPITAL” OF THE BULGARIAN SCHOOL

Nikolay Tsankov, Veska Gyuviyska

IUPAC APPROVED PERMANENT NAMES OF THE CHEMICAL ELEMENTS 113, 115, 117 AND 118: THE SEVENTH PERIOD OF THE PERIODIC TABLE OF THE CHEMICAL ELEMENTS IS COMPLETED

Ivan L. Dukov

WEB-BASED DIAGNOSTIC TEST: INTRODUCING ISOMORPHIC ITEMS TO ASSESS STUDENTS’ MISCONCEPTIONS AND ERROR PATTERNS

Sentot Kusairi, Arif Hidayat, Nurul Hidayat

KINETICS OF PHOTO-ELECTRO-ASSISTED DEGRADATION OF REMAZOL RED 5B

Fitria Rahmawati, Tri Martini, Nina Iswati

COMPARISON STUDY OF DIFFERENT INORGANIC SILICA BASED REINFORCEMENT KAOLIN AND 3-GLYCYDILOXYPROPYLTRIMETHOXYSILANEON MECHANICAL, WATER UPTAKE AND SWELLING AREA PROPERTIES OF CHITOSAN COMPOSITES

Ozi A. Saputra, Windy A. Lestari, Dheo A. Saputra, Kartika S. Rini, Edi Pramono

SIMPLE TECHNIQUE FOR DETERMINING THE FORWARD RATE CONSTANT OF REVERSIBLE REACTION

Maulidan Firdaus, Patiha, Triana Kusumaningsih

FORGOTTEN BULGARIAN TEACHERS: SIMEON HRISTOV

B.V. Toshev

ALLELOPATHIC AND IN VITRO ANTICANCER ACTIVITY OF STEVIA AND CHIA

Asya Dragoeva, Vanya Koleva, Zheni Stoyanova, Eli Zayova, Selime Ali

NOVEL HETEROARYLAMINO-CHROMEN-2-ONES AND THEIR ANTIBACTERIAL ACTIVITY

Ramiz Hoti, Naser Troni, Hamit Ismaili, Gjyle Mulliqi-Osmani, Veprim Thaçi

ONE DECADE OF THE “LUSI” MUD VOLCANO: PHYSICAL, CHEMICAL, AND GEOLOGICAL DIMENSIONS

Nadi Suprapto, Akhmad Zamroni, Eri Andrian Yudianto

ОСНОВИ НА ОБЩАТА МЕТОДИКА ПО ЕСТЕСТВОЗНАНИЕ – 1925 Г.

Issue 3

НАЦИОНАЛЕН КОНКУРС НА ФОНДАЦИЯ „ВИГОРИЯ“ – „С ЛЮБОВ КЪМ НАУКАТА“

Mariya Dobreva

PERCEPTION OF PRESERVICE SCIENCE TEACHERS IN THE CONSTRUCTIVIST SCIENCE LEARNING ENVIRONMENT

Prasart Nuangchalerm, Jiří Dostál

INTERACTIVE METHODS AND POSSIBILITIES OF THEIR IMPLEMENTATION TO THE EDUCATION PROCESS IN “BIOLOGY AND HEALTH EDUCATION”, 7 TH GRADE

M. Boycheva, Rositsa Davidova, Silviya Marinova

ENHANCING THAI STUDENTS’ THINKING SKILLS ABOUT ENERGY ISSUES: INFLUENCE OF LOCAL VALUES

Chokchai Yuenyong

LIQUID-LIQUID EXTRACTION AND SPECTROPHOTOMETRIC CHARACTERIZATION OF SOME NEW ION-ASSOCIATED COMPLEXES OF Co(II) WITH INT: APPLICATION OF THE DEVELOPED METHOD FOR ANALYSIS OF SOIL COBALT CONTENT

L. Dospatliev, M. Ivanova

QUANTUM CONFINEMENT OF MOBILE \(\mathbf{N a}^{\mathbf{+}}\) IONS IN SODIUM SILICATE GLASSY NANOPARTICLES

Srihari Murthy

CONSERVATION OF THE UPSTREAM OPEN READING FRAMES IN THE GENES FOR THE ERB-B2 RECEPTOR TYROSINE KINASE 2 IN VERTEBRATES

Luchezar Karagyozov

OPTIMIZATION OF ENGINE OIL FORMULATION USING RESPONSE SURFACE METHODOLOGY AND GENETIC ALGORITHM: A COMPARATIVE STUDY

Behnaz Azmoon, A. Semnani, Ramin Jaberzadeh Ansari, Hamid Shakoori Langeroodi, Mahboube Shirani, Shima Ghanavati Nasab

CHEMOMETRICASSISTEDSPECTROPHOTOMETRIC ESTIMATION OF LANSOPRAZOLE AND DOMEPERIDONE IN BULK AND COMMERCIAL DOSAGE FORM

Farheen Sami, Shahnaz Majeed, Tengku Azlan Shah Tengku Mohammed, Noor Fatin Amalina Kamaruddin, Mohammad Zulhimi Atan, Syed Amir Javid Bukhari, Namra, Bushra Hasan, Mohammed Tahir Ansari

EVALUATION OF ANTIBACTERIAL ACTIVITY OF DIFFERENT SOLVENT EXTRACTS OF TEUCRIUM CHAMAEDRYS (L. ) GROWING WILD IN KOSOVO

Arben Haziri, Fatmir Faiku, Roze Berisha, Ibrahim Mehmeti, Sevdije Govori, Imer Haziri

THE UNKNOW FOR THE KNOWN: A. M. BUTLEROV

B. V. Toshev

QUALITY ASSESSMENT OF SUPPLY WATER OF GJAKOVA CITY (KOSOVO) : A CASE STUDY OF CORRELATION COEFFICIENTS BETWEEN CHEMICAL DATA

Fatbardh Gashi, Naser Troni, Albert Maxhuni, Albana Mehmeti, Jeton Shabani

АЛЕКСАНДЪР ПАНАЙОТОВ

B. V. Toshev

Issue 2

ON THE PLACEMENT OF HYDROGEN AND HELIUM IN THE PERIODIC SYSTEM: A COMMENT

Julijana Cvetković, Vlsdimir M. Petrusevski

STUDENTS’ SCIENTIFIC LITERACY AT THE BEGINNING OF THE 21ST CENTURY: IN SEARCH OF CONCEPTUAL UNIITY

Teodora Kolarova, Isa Hadjiali, Mimya Dokova, Veselin Alexandrov

USE OF COMPETENCE ONTOLOGICAL MODEL FOR MATCHING OF QUALIFICATIONS

J. Rogushina, S. Priyma

COMPUTER SIMULATORS: APPLICATION FOR GRADUATES’ADAPTATION AT OIL AND GAS REFINERIES

I.O. Dolganova, Igor M. Dolganov, Kseniya A. Vasyuchka

BOSON/FERMION JANUS PARTICLES

Roumen Tsekov

ACTIVATION ENERGY

B.V. Toshev

SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL ACTIVITIES OF PYRAZOLYL COPPER(II) NITRATE COMPLEXES

A. Munyaneza, G. Kumar, I. C. Morobe

SYNTHESIS OF NEW [(3-NITRO-2-OXO-2H-CHROMEN4-YLAMINO) -PHENYL] -PHENYL-TRIAZOLIDIN-4-ONES AND THEIR ANTIBACTERIAL ACTIVITY

Ramiz Hoti, Hamit Ismaili, Idriz Vehapi, Naser Troni, Gjyle Mulliqi-Osmani, Veprim Thaçi

STABILITY OF RJ-5 FUEL

Lemi Türker, Serhat Variş

A STUDY OF BEGLIKTASH MEGALITHIC COMPLEX

D. Kyurkchieva, Evgeni Stoykov, Sabin Ivanov, Borislav Borisov, Hristo Hristov, Pencho Kyurkchiev, Dimitar Vladev, Irina Ivanova

Issue 1

FOR SUCCESSFUL EDUCATION

B.V. Toshev

HIGHER EDUCATION PERSPECTIVES FOR AN EXCITING EDUCATIONALEXPERIENCE – PART VII: AN INDIAN CONTEXT

B.H.S. Thimmappa

USE OF ELECTRONIC TESTS IN TEACHING GEOGRAPHY IN THE SOUTH-WEST UNIVERSITY IN BLAGOEVGRAD

Ivan Drenovski

SCIENCE CAN BE FUN – MURPHY’S LAW AND HUMOUR IN NATURAL SCIENCE

Milan D. Stojkovic

SYNTHESIS, CHARACTERISATION, MOLECULAR MODELING AND BIOLOGICAL STUDIES OF Cо(II) , Ni(II) , Cu(II) AND Zn(II) COMPLEXES OF AZODYE LIGAND DERIVED FROM 4-AMINOANTIPYRINE AND 5-BROMOSALICYLALDEHYDE

S.N. Chaulia

ASSESSING LEVELS OF CO\(_{2}\), CO, NO\(_{X}\) AND SO\(_{2}\) IN INDOOR AIR USING DRÄGER SENSORS: A CASE STADY IN PRISHTINA, KOSOVO

Shyqri Dumani, Fatbardh Gashi, Naser Troni

SYNTHESIS AND CHARACTERIZATION OF COMPOUND PMPA USING NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY AND OPTIMIZED MOLECULAR STRUCTURES CALCULATED USING THE DFT/B3LYP METHOD WITH THE 3-21G** BASIS SET COMBINED WITH THE Co\(^{II }\) COMPLEX

Mohammad Mahdi Akbarzadeh, Khirollah Mehrani, Shahriar Ghammamy, Vahideh Hadigheh Rezvan

CARL FRIEDRIECH RAMMELSBERG AND THE EARLY DIFFUSION OF THE PERIODIC TABLE OF DMITRI MENDELEEV

Pierre-Léonard Zaffalon

STUDENTS’ATTITUDES RELATED TO SCIENCE AND SCIENTISTS:STEREOTYPES, PECULIARITIES, IMPLICATIONS

A. Gendjova

Year XXV, 2016

Issue 6

ON THE USE OF UNIFORM CONCEPTUAL TERMS IN EDUCATION AND LEARNIMG

A. A. Panaiotov

\(K_{p}\) DOES NOT PLAY THE ROLE OF THE THERMODYNAMIC EQUILIBRIUM CONSTANT, \(\boldsymbol{K}^{\boldsymbol{0}}\) : A DISCUSSED EXAMPLE ON GENERAL CHEMISTRY TEXTBOOKS’ MISREPRESENTATIONS

Juan Quílez

WHY SOLIDS AND PURE LIQUIDS ARE NOT PART OF EQUILIBRIUM EXPRESSION

Jamil Ahmad

BLENDED LEARNING TASKS FOR TEACHING ENGLISH AS A FOREIGN LANGUAGE METHODOLOGY COURSE (FOR STUDENTS OF BIOLOGY)

Anellyа Kremenska

CONVERSION OF THE TRAINING IN ASTRONOMY INTO A REAL RESEARCH PROCESS – AN INNOVATION IN THE TEACHING PRACTICE

V. Radeva, D. Kjurkchieva, D. Dimitrov, G. Borisov

SYNTHESIS AND CHARACTERIZATION OF PALLADIUM COMPLEXES OF SOME N, N, N’, N’TETRAKIS(2-PYRIDYLMETHYL) ALKANEDIAMINE LIGANDS

Olayinka. A. Oyetunji, Florence M. Nareetsile, Ruth Gontse, Lesedi Sheleng

A NEW APPROACH FOR THE SYNTHESIS OF P-ANISYL ETHYL FUMARATE: A C-9154 ANTIBIOTIC ANALOGUE

Maulidan Firdaus, Ahmad Ainurofiq, Aulia Vellarani

DDT – THE SUBSTANCE WHICH WAS CONSIDERED AS SALVATION AND TODAY IT CAN BE FOUND IN THE LIST OF FORBIDDEN FOR USING SUBSTANCES

Ivelin Kuleff

THE EFFECT OF KOH AND KCL ADDITION TO THE DESTILATION OF ETHANOL-WATER MIXTURE

Khoirina Dwi Nugrahaningtyas, Fitria Rahmawati, Avrina Kumalasari

PROF. WIDEN TABAKOFF – A COURSE OF LIFE AND SCIENTIFIC ACHIEVEMENTS

B.V. Toshev

THE FIRST YEARS OF PHYSICAL CHEMISTRY IN BULGARIA

B.V. Toshev

TEACHERS IN LEARNING WITH USING OF INFORMATION AND COMMUNICATION TECHNOLOGIES

Gergana Kalpachka

Issue 5

OBTAINING EDUCATIONAL MINIMUM AND NEW CURRICULIM IN GEOGRAPHY IN LOWER SECONDARY BULGARIAN SCHOOL

Ivan Drenovski

TRENDS IN SCIENCE EDUCATION RESEARCH: A CONTENT ANALYSIS OF BULGARIAN EDUCATIONAL JOURNALS FROM 2011 TO 2015

Isa Hadjiali, Teodora Kolarova

USE OF VECTORS AND FACTORIALS FOR CALCULATION OF MICROSTATES FROM \(\mathbf{P}^{\mathbf{2}}, \mathbf{D}^{\mathbf{2}}, \mathbf{F}^{\mathbf{2}}\) CONFIGURATIONS AND DESCRIPTION OF THE \(\mathbf{P}^{\mathbf{2}}\) ELECTRON CONFIGURATION

M. Ivanova, Lilko Dospatliev

DETERMINATION OF THE RATE AND THE EQUILIBRIUM CONSTANT WITH KINETIC APPROACH

Patiha, Maulidan Firdaus

STUDY OF THE APPROPRIATION BY THE PUPILS OF SECOND BACCALAUREATE YEAR OF KNOWLEDGE OBJECTS RELATING TO ACID-BASES TITRATIONS

Ali Ouasri

COLLEGE STUDENTS’ CONCEPTIONS OF NEWTONIAN MECHANICS: A CASE OF SURABAYA STATE UNIVERSITY INDONESIA¹⁾

Nadi Suprapto, Dimas A. Syahrul, Seftyan Agustihana

ESTIMATION OF IGNITION TEMPERATURE FOR TWO KINDS OF ENERGETIC MATERIALS BY THERMAL ANALYSIS AND KINETIC EVALUATIONS

Mohammad Reza Nayeb-Hosseini, Mohammad Ferdowsi

SPECTROSCOPIC STUDIES ON A POTENTIAL COMPLEX BETWEEN TNT AND FOLIC ACID: A DFT STUDY

Lemi Türker, Serhat Variş

QUALITY ASSESSMENT AND CORRELATION COEFFICIENTS STUDY OF CHEMICAL PARAMETERS OF THE WELL WATER OF PLESHINA (KOSOVA)

F. Gashi, Fatmir Faiku, N. Troni, A. Gashi

QUALITY ASSESSMENT OF RIVER WATER OF GRAQANICA (KOSOVO) AND CORRELATION STUDY OF CHEMICAL DATA

F. Gashi, Naser Troni, R. Hoti, L. Latifi, V. Kolshi, A. Gashi

NEW FUNCTIONS OF TEACHERS WHEN TRAINING WITH INFORMATION-COMMUNICATION TECHNOLOGIES

Hristina Petrova

ASSESSMENT OF STUDENT PERSONALITY

B.V. Toshev

Issue 4

INVESTIGATING PRESERVICE SECONDARY SCHOOL SCIENCE TEACHERS’ PRACTICES ABOUT INQUIRY-BASED INSTRUCTION DURING SCHOOL PRACTICUM

Prasart Nuangchalerm, Jiří Dostál, Xingkai Luo

HIGHER EDUCATION PERSPECTIVES FOR AN EXCITING EDUCATIONAL EXPERIENCE – PART VI: AN INDIAN CONTEXT

B.H.S. Thimmappa

ON THE PLACEMENT OF HYDROGEN AND HELIUM IN THE PERIODIC SYSTEM: A NEW APPROACH

Martín Labarca, Akash Srivaths

ATTITUDES TOWARDS SIGNIFICANCE OF HEALTHY BODY WEIGHT AND ADIPOSE TISSUE FUNCTIONS AMONG BIOLOGY STUDENTS

Asya Dragoeva, Masha Radoslavova, Vanya Koleva, Zhaklin Bakalova

HIGH SCHOOL STUDENTS’ MISCONCEPTIONS ABOUT MAGNETISM

Refik Dilber, Fatma Nur Ersoy

USE OF INTERACTIVE METHODS IN TEACHING BIOLOGY AND HEALTH EDUCATION FOR 8 TH GRADE STUDENTS

Mayya Radeva, M. Boycheva, Rositsa Davidova

USE OF INNOVATIVE METHODS IN STUDENTS’ ECOLOGICAL AND HEALTH EDUCATION IN BIOLOGY

Stoyna Ilieva, M. Boycheva, Rositsa Davidova

VOLTAMMERIC SENSOR FOR NITROPHENOLS BASED ON SCREEN-PRINTED ELECTRODE MODIFIED WITH REDUCED GRAPHENE OXIDE

Arsim Maloku, Liridon S. Berisha, Granit Jashari, Eduard Andoni, Tahir Arbneshi

SUPERHEAVY CHEMICAL ELEMENTS 113 – 118: SYNTHESES, NAMING AND PROPERTIES

I. L. Dukov

ASSOC. PROF. ILYA TODOROV KARAGEORGIEV: A MEMORY FOR A MODEST AND DISTINGUISHED SCIENTIST

V. Golemansky

Hristina Petrova

Issue 3

ОТНОСНО ИМЕТО НА 114-ИЯ ЕЛЕМЕНТ

Ivelin Kuleff

ИНТУИЦИЯ И ВЪОБРАЖЕНИЕ В НАУЧНИТЕ ИЗСЛЕДВАНИЯ

D. Klissurski

COMPARING EDUCATIONAL AND CAREER ASPIRATIONS, EXPECTATIONS AND SKILLS OF CHEMISTRY AND PHARMACY FRESHMEN

A. Gendjova

STUDY ON PROFESSIONAL REFLECTION OF BIOLOGY TEACHER: PART I

Isa Hadjiali, Nadezhda Raycheva, Natasha Tzanova

STUDY ON PROFESSIONAL REFLECTION OF BIOLOGY TEACHER: PART II

Nadezhda Raycheva, Isa Hadjiali, Natasha Tzanova, Victoria Necheva

SIGNIFICANCE OF THE INTERACTIVE CLINICAL CASES WITH VIRTUAL PATIENTS FOR LEARNING MEDICAL BIOCHEMISTRY

Ganka Kossekova, Tanya Monova, Bilyana Georgievsa

DETERMINATION OF ACTIVATION ENERGY IN NON-ISOTHERMAL CHEMICAL KINETICS

Maulidan Firdaus, Patiha

EXISTING NATURE OF SCIENCE TEACHING OF A THAI IN-SERVICE BIOLOGY TEACHER

Wimol Sumranwanich, Sitthipon Art-in, Panee Maneechom, Chokchai Yuenyong

METEORITE HUNTING AND PHYSICS EDUCATION

Georgi Nikolov Golemshinski

ASSESSMENT OF THE QUALITIES OF TEACHING EXPERIMENTS WHICH ILLUSTRATE THE GREENHOUSE EFFECT

Antoaneta Angelacheva

THE INFLUENCE OF THE NATURAL SCIENCES COMPONENT OF EDUCATION CONTENT ON THE EDUCATIONAL PROCESS ORGANIZATION IN UKRAINIAN SCHOOLS OF GENERAL EDUCATION IN THE SECOND HALF OF THE 19\(^{TH}\) CENTURY

Marina Mykhaykivna Holovkova, Angelina Anatoliivna Korobchenko

NUTRIENT COMPOSITION OF CUCURBITA MELO GROWING IN KOSOVO

Fatmir Faiku, Arben Haziri, Fatbardh Gashi, Naser Troni

THE WINE IN ANCIENT AND MODERN TIMES

Ivelin Kuleff

RELATION „ЕDUCATIONAL PARADIGMS – INFORMATION AND COMMUNICATION TECHNOLOGIES“ IN THE CONTEXT OF E-LEARNING

Kamelia Yotovska

НАГРАДИТЕ „ЗЛАТНА ДЕТЕЛИНА“ ЗА 2016 Г.

Mariya Dobreva

Issue 2

MEDIATION IN RESOLVING CONFLICTS BETWEEN CHIMERIC SCHOOL GROUPS – A RESTORATIVE PRACTICE IN SCHOOL

D. Chankova, Nikolay Tsankov, E. Popova

THE CONTRIBUTION OF MODEL TEACHING AND MATERIAL DEVELOPMENT TO PHYSICS TEACHING: FARADAY’S LAW OF INDUCTION

İbrahim Karaman, Refik Dilber, Aydın Yelgün

ACID MODIFIED BABY POWDER BASED TALK – A SORBENT MATERIAL FOR THIN-LAYER CHROMATOGRAPHY

Soner Ergül

THE NOVEL METHODS OF POLYMERIZATION AT HAND

Saâd Moulay

A CENTENARY OF THE BIRTH OF PROFESSOR CHRISTO IVANOV

Ivo C. Ivanov

CONTEXT-BASED CHEMISTRY LAB WORK WITH THE USE OF COMPUTER-ASSISTED LEARNING SYSTEM

Natalia Stozhko, A. V. Tchernysheva, E.M. Podshivalova, B.I. Bortnik

VARIATION DEGREE IN E-LEARNING COURSES: ASSESSMENT THROUGH FEATURE MODELS

Ivo Damyanov, Nikolay Tsankov

TEACHING ABOUT THE BOOK OF NATURE: THE CHALLENGE OF DEMYSTIFYING CHEMISTRY AT SCHOOL LEVEL

Keith S. Taber

Issue 1

ПО ПЪТЯ ON THE ROAD

B.V. Toshev

DEVELOPMENT ОF THE UNIVERSITY PHYSICAL CHEMISTRY IN TWO HISTORIC EPOCHS

Dimo Platikanov

PYCNOMETRIC EVALUATION OF CRYSTALLINITY AND POROSITY IN PYROXENE GLASS-CERAMICS FROM INDUSTRIAL WASTES

A. Kamusheva, A. Karamanov

THE BULGARIAN PHYSICOCHEMICAL TRADITION AND THE INSTITUTE OF PHYSICAL CHEMISTRY “ACADEMICIAN ROSTISLAW KAISCHEW”

Vesela Tsakova

GEOGRAPHIC COORDINATES AND ATTITUDES OF SYNOPTIC STATIONS IN BULGARIA

Ivan Drenovski

HISTORICAL ROOTS AND DEVELOPMENT OF CONSTRUCTIVISM

A. Tafrova-Grigorova

HAPPY NUMBERS: PLAY AS A TOOL FOR LEARNING AND INVENTING OF PROBLEMS

Todor Yalamov

INTERDISCIPLINARY PROJECT FOR ENHANCING STUDENTS’ INTEREST IN CHEMISTRY

Stela Georgieva, Petar Todorov, Zlatina Genova, Petia Peneva

ASSESSMENT OF THE PERCEPTIONS OF THE LEARNING ENVIRONMENT IN UNIVERSITY GROUPS

Nadia Ilieva, Elena Boiadjieva

Year XXIV, 2015

Issue 6

DEPARTMENT OF PHYSICAL CHEMISTRY - HIGHLIGHTS FROM THE PAST AND PROSPECTS FOR THE FUTURE DEVELOPMENT

B. V. Toshev

HARD SPHERES MODEL OF THE ATOM

Roumen Tsekov

COMPLEX SYSTEMS FOR DRUG TRANSPORT ACROSS CELL MEMBRANES

Nikoleta Ivanova, Yana Tsoneva, Nina Ilkova, Anela Ivanova

SURFACE FUNCTIONALIZATION OF SILICA SOL-GEL MICROPARTICLES WITH EUROPIUM COMPLEXES

Nina Danchova, Gulay Ahmed, Michael Bredol, Stoyan Gutzov

STUDY OF PROTEIN MODIFIED GOLD NANOPARTICLES IN BULK PHASE AND AT AIR/WATER INTERFACE

A. Chanachev, P. Georgiev, Tz. Ivanova, K. Balashev

PARALLEL STABILITY ANALYSIS OF MEMBRANE LAMELLAR STRICTURES AND FOAM FILMS

Nikoleta G. Ivanova, Roumen Tsekov

INTERFACIAL REORGANIZATION OF MOLECULAR ASSEMBLIES USED AS DRUG DELIVERY SYSTEMS

I. Panaiotov, Tz. Ivanova, K. Balashev, N. Grozev, I. Minkov, K. Mircheva

ANOMALOUS DRAINAGE OF NANOFILMS FROM CONCENTRATED NACL SOLUTIONS OF TETRAETHYLENE GLYCOL OCTYL ETHER (C8E4)

S. I. Karakashev

KINETICS OF THE OSMOTIC PROCESS AND THE POLARIZATION EFFECT

B. P. Radoev, Ivan Minkov, Emil D. Manev

WETTING BEHAVIOR OF A NATURAL AND A SYNTHETIC THERAPEUTIC PULMONARY SURFACTANTS

Lidia Alexandrova, Michail Nedyalkov, D. Platikanov

Issue 5

TEACHER’S ACCEPTANCE OF STUDENTS WITH DISABILITY

Daniela Dimitrova-Radojchic, Natasha Chichevska-Jovanova

‘SCIENTIFIC DISCIPLINES’AWARENESS QUESTIONNAIRE

B.H.S. Thimmappa

SPECTRAL, MAGNETOCHEMICAL AND THERMOGRAVIMETRIC ANALYSIS (TGA) OF TRANSITION METAL COMPLEXES WITH N^O TYPES LIGANDS

G. Kumar, A. Munyaneza, G. Ditsie

MULTIMEDIA TESTS IN GEOGRAPHY

Ivan Drenovski

REMOTE ASTRONOMICAL OBSERVATIONS – INNOVATION IN ASTRONOMY EDUCATION

V. Radeva, D. Kyurkchieva, D. Dimitrov, G. Borisov

IRANIAN UNIVERSITY STUDENTS’ PERCEPTION OF CHEMISTRY LABORATORY ENVIRONMENTS

Zahra Eskandari Nabi.A Ebrahimi, Nabi.A Ebrahimi

APPLICATION OF LASER INDUCED BREAKDOWN SPECTROSCOPY AS NONDESDUCTRIVE AND SAFE ANALYSIS METHOD FOR COMPOSITE SOLID PROPELLANTS

Amir Hossein Farhadian, Masoud Kavosh Tehrani, Mohammad Hossein Keshavarz, Seyyed Mohamad Reza Darbany, Mehran Karimi, Amir Hossein Rezayi

THE EFFECT OF DIOCTYLPHTHALATE ON INITIAL PROPERTIES AND FIELD PERFORMANCE OF SOME SEMISYNTHETIC ENGINE OILS

Azadeh Ghasemizadeh, Abolfazl Semnani, Hamid Shakoori Langeroodi, Alireza Nezamzade Ejhieh

QUALITY ASSESSMENT OF RIVER’S WATER OF LUMBARDHI PEJA (KOSOVO)

Fatmir Faiku, Arben Haziri, Fatbardh Gashi, Naser Troni

APPLICATION OF INFORMATION AND COMMUNICATION TECHNOLOGIES IN CHEMICAL EDUCATION: OPINIONS OF TEACHERS IN CHEMISTRY FROM ONE REGION OF BULGARIA

Milena Kirova, Neli Kostova, Milka Trendafilova

Issue 4

БЛАГОДАРЯ ВИ!

Alexander Panaiotov

RECOGNITION OF A GREAT SCIENTIFIC DISCIPLINE

Vasil Simeonov

USE OF OXIDATION NUMBERS FOR PREDICTING REGIOSELECTIVITY IN ORGANIC REACTIONS

Maulidan Firdaus, Patiha

SYSTEM OF THE QUALITY MANAGEMENT FOR BIOLOGY TEACHER PROFESSIONAL TRAINING IN SOFIA UNIVERSITY

N. Tzanova, Isa Hadjiali, Nadezhda Raitcheva

THE TOPIC CARBOHYDRATES IN THE EDUCATIONAL PROGRAMS ON CHEMISTRY AND BIOLOGY

Radka Tomova, Elena Boiadjieva, Miglena Slavova, Marian Nikolov

ABOUT THE EXPONENTIAL AND LOGARITHMIC FUNCTIONS AND THE NUMBER \(\boldsymbol{e}\)

Ivelina Kotseva

BILINGUAL COURSE IN BIOTECHNOLOGY: INTERDISCIPLINARY MODEL1)

V. Kolarski, D. Marinkova, R. Raykova, D. Danalev, S. Terzieva

OPINION SURVEY OF STUDENTS FOR TRAINING IN CHEMISTRY IN SCHOOL

M. Shekerliyska, V. Dimitrova

TEACHING AND LEARNING EFFICACY OF VIRTUAL LABORATORY PACKAGE ON SELECTED NIGERIAN SECONDARY SCHOOL PHYSICS CONCEPTS

Oluwole Caleb Falode, Samuel Adenubi Onadanya

THE CHEMISTRY EXPERIMENT – SCIENCE AND AMUSEMENT

Elitsa Chorbadzhiyska, V. Dimitrova, M. Shekerliyska, Galina Baliova, Metodiyka Angelova

ECOLOGY IN BULGARIA

Zdravka Kostova

ENVIRONMENTAL ADVENTURES IN TIME

Vasil Simeonov

Issue 3

THE POST-NORMAL SCIENCE: FEATURES AND NEW TRENDS

B. V. Toshev

SYNTHESIS OF FLUORINATED HYDROXYCINNAMOYL DERIVATIVES OF ANTI-INFLUENZA DRUGS AND THEIR BIOLOGICAL ACTIVITY

Boyka Stoykova, Maya Chochkova, Galya Ivanova, Luchia Mukova, Nadya Nikolova, Lubomira Nikolaeva-Glomb, Pavel Vojtíšek, Tsenka Milkova, Martin Štícha, David Havlíček

SYNTHESIS AND ANTIVIRAL ACTIVITY OF SOME AMINO ACIDS DERIVATIVES OF INFLUENZA VIRUS DRUGS

Radoslav Chayrov, Vesela Veselinova, Vasilka Markova, Luchia Mukova, Angel Galabov, Ivanka Stankova

NEW DERIVATIVES OF OSELTAMIVIR WITH BILE ACIDS

Kiril Chuchkov, Silvia Nakova, Lucia Mukova, Angel Galabov, Ivanka Stankova

MONOHYDROXY FLAVONES. PART III: THE MULLIKEN ANALYSIS

Maria Vakarelska-Popovska, Zhivko Velkov

LEU-ARG ANALOGUES: SYNTHESIS, IR CHARACTERIZATION AND DOCKING STUDIES

Tatyana Dzimbova, Atanas Chapkanov, Tamara Pajpanova

SYNTHESIS OF 2-FLUOROMETHYL-7(ARYLSULFANYLMETHYL) NAPHTHALENES

Jane Bogdanov

INVESTIGATION OF THE ETHERIFICATION PROCESS UNDER MODEL MIXTURE

Yordanka Tasheva

MODIFIED QUECHERS METHOD FOR DETERMINATION OF METHOMYL, ALDICARB, CARBOFURAN AND PROPOXUR IN LIVER

Iskra Stoykova, T. Yankovska-Stefenova, L.Yotova, D. Danalev

ORGANIC COMPOUNDS AS INHIBITORS FOR MILD STEEL IN \(\mathbf{1} \mathrm{M} \mathrm{H}_{2} \mathrm{SO}_{4}\)

Temenujka Nikolova Haralanova, C. Girginov

MICROBIAL X CELLS – INNOVATIVE MULTIPURPOSE BIOELECTROCHEMICAL SYSTEMS

Mario Mitov, Yolina Hubenova

LACTOBACILLUS PLANTARUM AC 11S AS A BIOCATALYST IN MICROBIAL ELECYTOLYSIS CELL

Elitsa Chorbadzhiyska, Yolina Hubenova, Sophia Yankova, Dragomir Yankov, Mario Mitov

Pd-Au DEPOSITES ON NI-FOAM AS ANODIC ELECTROCATALYSTS FOR DIRECT BOROHYDRIDE FUEL CELL

Georgi Hristov, Elitsa Chorbadzhiyska, Mario Mitov

SEDIMENT MICROBIAL FUEL CELLS AS POWER SOURCES FOR SMALL ELECTRICAL CONSUMERS

Ivo Bardarov, Yolina Hubenova, Mario Mitov

SOLID PHASE EXTRACTION OF Au(III) USING SILICA GEL MODIFIED WITH 4-AMINOANTIPYRINE SCHIFF BASES

P. Petrova, I. Karadjova, M. Chochkova, I. Dakova

INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROSCOPY – DETERMINATION OF RARE EARTH AND PLATINUM GROUP OF ELEMENTS

N. Velitchkova, P. Tetrova, S. Velichkov, N. Daskalova

STUDYING THE PROCESS OF DEPOSITION OF ANTIMONY WITH CALCIUM CARBONATE

Kh. B. Omarov, Z. B. Absat, S. K. Aldabergenova, A. B. Siyazova, N. J. Rakhimzhanova, Z. B. Sagindykova

Issue 2

АКАДЕМИЧНО СЛОВО ПРЕД АБСОЛВЕНТИТЕ ОТ ВИПУСК 2014

INTELLECTUAL “SYNERGY” BETWEEN TWO EUROPEАN PROJECTS

Vasil Simeonov

TEACHING CHEMISTRY AT TECHNICAL UNIVERSITY

Lilyana Nacheva-Skopalik, Milena Koleva

PLICKERS ASSISTED FORMATIVE PEER INSTRUCTION ASSESSMENT

Ivelina Kotseva, Maya Gajdarova, Galina Nencheva

IMPROVING STUDENTS’ PERFORMANCE IN NAMING AND WRITING STRUCTURAL FORMULAE OF HYDROCARBONS USING THE BALL-AND-STICK MODELS

P. A. Sarkodie Head of Department, Kenneth Adu-Gyamfi Head of Department

STUDENT PERFORMANCE IN A SEMINAR BASED EXAMINATION OF BASIC BIOCHEMISTRY COURSE

M. E. A. Mohammed

VAPOR PRESSURES OF 1-BUTANOL OVER WIDE RANGE OF THEMPERATURES

Javid Safarov, Bahruz Ahmadov, Saleh Mirzayev, Astan Shahverdiyev, habil h.c. Egon Hassel

THREE HYPOTHETICAL PROBLEMS FOR QUANTITATIVE PRECIPITATION

Soner Ergül

FORMATION OF А NEW KNOWLEDGE THROUGH GRAPHICAL MODELING IN PHYSICS EDUCATION

H. Petrova

PROFESSOR TODOR GEORGIEV NIKOLOV, A GEOLOGIST

Zdravka Kostova

ABOUT THE CREATOR OF THE TRACE ATOMS: 130 YEARS FROM THE BIRTH OF GEORGE DE HEVESY

Ivelin Kuleff

DESIGN OF UNIVERSITY E-LEARNING COURSE (FOR PROSPECTIVE BIOLOGY TEACHERS)

Kamelia Yotovska

КУЛТУРНА ИСТОРИЯ НА НАУКАТА: НОВИ ИДЕИ ЗА МАТЕРИЯТА И ВЪЗНИКВАНЕТО НА МОДЕРНАТА ХИМИЯ

B.V. Toshev

Issue 1

НАУКОМЕТРИЧНИ ПОКАЗАТЕЛИ НА СПИСАНИЕ ХИМИЯ (ПРИРОДНИТЕ НАУКИ В ОБРАЗОВАНИЕТО)

B.V. Toshev

ANXIETY IN SCIENCE EDUCATION

Zdravka Kostova

NOMENCLATURE RECOMMENDATIONS OF IUPAC RELATED TO THE CHEMICAL TERMINOLOGY AND QUANTITIES, UNITS AND SYMBOLS USED IN CHEMISTRY

Alexander Zahariev

HIGHER EDUCATION PERSPECTIVES FOR AN EXCITING EDUCATIONAL EXPERIENCE – PART V: AN INDIAN CONTEXT

B.H.S. Thimmappa

GRAPHICAL PROBLEMS IN PHYSICS EDUCATION IN SECONDARY SCHOOL

Hristina Petrova

RUMEN LYUBOMIROV DOYCHEV (1938 – 1999)

Ognyan Dimitrov, Zdravka Kostova iate

BRAIN-LIKE SPATIO-TEMPORAL DATA MACHINES

N. Kasabov Director

CHEMISTRY RESEARCH IN THE UNIVERSITY OF SOFIA: THE FIRST HUNDRED YEARS

Dimo Platikanov

NAMING OF CHEMICAL ELEMENTS

Maria Atanassova

RECENT PAPERS ON CONSTRUCTIVISM IN EDUCATION

B.V. Toshev

НАЙДЕН НАЙДЕНОВ, 1929 – 2014. СПОМЕН ЗА ПРИЯТЕЛЯ. ИНЖ. НАЙДЕН ХРИСТОВ НАЙДЕНОВ, СЕКРЕТАР НА СЪЮЗА НА ХИМИЦИТЕ В БЪЛГАРИЯ (2.10.1929 – 25.10.2014)

Dimiter Klissurski

Year XXIII, 2014

Issue 6

145\(^{TH}\) ANNIVERSARY OF THE BULGARIAN ACADEMY OF SCIENCES

D. Klissurski

SERVICE LEARNING IN SCIENCE TEACHER PREPARATION PROGRAM: CONCEPTS AND PRACTICES

Prasart Nuangchalerm

VAPOR PRESSURE OF SOLUTIONS

B.V. Toshev

IMPROVEMENT OF STEM EDUCATION WITH THE INTEGRATION OF DATA-LOGGERS IN THE SHINING STAR PROJECT, 2007-2011 IN SOUTHERN INDIANA

James E. Hollenbeck

ASTRONOMICAL EDUCATIONAL PROJECT “MY KEPLER”: A LINK BETWEEN SCIENCE AND EDUCATION

V. Radeva, D. Kyurkchieva, D. Dimitrov

EFFECT OF STUDENTS’ BACKGROUND KNOWLEDGE OF MATHEMATICS ON SENIOR SECONDARY SCHOOL STUDENTS’ ACHIEVEMENT IN PHYSICS

Ayodele Ogunleye, Adeneye O.A. Awofala, Emiola A. Adekoya

SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND CO(II) AND NI(II) COMPLEXES WITH L- PHENYLALANINE AND HIPPURIC ACID

G. Kumar, A. Munyaneza, G. Ditsie

LUBRICATION PROPERTIES OF DIFFERENT PENTAERYTHRITOL-OLEIC ACID REACTION PRODUCTS

Abolfazl Semnani, Hamid Shakoori Langeroodi, Mahboube Shirani

THE ORIGINS OF SECONDARY AND TERTIARY GENERAL EDUCATION IN RUSSIA: HISTORICAL VIEWS FROM THE 21ST CENTURY

V. Romanenko, G. Nikitina

ALLELOPATHIC AND CYTOTOXIC ACTIVITY OF ORIGANUM VULGARE SSP. VULGARE GROWING WILD IN BULGARIA

Asya Dragoeva, Vanya Petrova Koleva, Zheni Dimitrova Nanova, Mariya Zhivkova Kaschieva, Irina Rumenova Yotova

CHEMOMETRY AND PROFESSOR VASSIL SIMEONOV

B.V. Toshev

E-LEARNING PROJECT AT FACULTY OF CHEMISTRY AND PHARMACY, UNIVERSITY OF SOFIA

S. Tsakovski, Vasil Simeonov

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА: БОРБА С ЕДНА ЛЕДЕНА ЕПОХА В ГОДИНАТА 3000 СЛЕД ХРИСТА. 5.\(^{1)}\)

Bruno Byurgel

Issue 5

FOR RELIABILITY OF INTERNET LESSONS IN GEOGRAPHY

Ivan Drenovski iate

GENDER ISSUES OF UKRAINIAN HIGHER EDUCATION

Hanna H. Petruchenia senior lecturer, Margaryta I. Vorovka Аssoc.

VAPOR PRESSURE OF LIQUIDS

B.V. Toshev

HIGHER EDUCATION PERSPECTIVES FOR AN EXCITING EDUCATIONAL EXPERIENCE – PART IV – AN INDIAN CONTEXT

B.H.S. Thimmappa

MULTIVARIATE STATISTICAL ASSESSMENT OF DREEM – BULGARIA: STUDENT’S PERCEPTIONS OF THE LEARNING ENVIRONMENT IN THE MEDICAL UNIVERSITY IN SOFIA

Radka Tomova, Pavlina Gateva, Radka Hadjiolova, Zafer Sabit, Miglena Slavova, Gergana Chergarova, Vasil Simeonov

FACTORS DETERMINING THE IMPROVEMENT OF EDUCATION QUALITY OF FOREIGN STUDENTS IN THE MEDICAL UNIVERSITY

S. Kokova

VIRTUAL EXPERIMENTS IN THE LABORATORY EXERCISES IN THE SUBJECT “PHYSIOLOGY OF ANIMALS AND HUMANS”

Masha Radoslavova, M. Boycheva

MUSSEL BIOADHESIVES: A TOP LESSON FROM NATURE

Saâd Moulay

THE ROLE OF GREEN PESTICIDES FOR SUSTAINABLE GREEN ECONOMY

Bizuneh Adinew

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА: БОРБА С ЕДНА ЛЕДЕНА ЕПОХА В ГОДИНАТА 3000 СЛЕД ХРИСТА. 4.¹⁾

Bruno Byurgel

Issue 4

E-MANUAL FOR THE STUDENTS OF 10\(^{TH}\) GRADE: “FROM THE ATOM TO THE SPACE”

Silviya Boyanova Тeacher

CONVENTIONAL TEACHING VERSUS POWER POINT PRESENTATION: A COMPARATIVE STUDY FOR UNDERGRADUATE ORGANIC CHEMISTRY STUDENTS

Sunena Chandra, Ram N. Yadav, Bimal K. Banik

THE ESSAY AS AN INTEGRATIVE CONSTRUCT: NORMATIVE, PROCEDURE AND ASSESS-RESULTATIVE ASPECT

Nadezhda Raycheva, Ivan Kapurdov, Natasha Tzanova, Isa Hadjiali, Snezhana Tomova

ISOLATION AND CHARACTERIZATION OF COLLAGEN FROM THE SKIN OF SYRIAN SHEEP

Manar Abu-Hassan, Ahmad Malo

DEVELOPING STUDENTS GRAPHICAL KNOWLEDGE AND SKILLS THROUGH SOLVING PHYSICAL PROBLEMS WITH GRAPHICAL METHOD

Hristina Petrova

THE PROBLEM IN THE CONTEXT OF REFLECTIVE TECHNOLOGY FOR TEACHING BIOLOGY

Isa Hadjiali, Nadezhda Raycheva, Natasha Tzanova

44TH INTERNATIONAL CHEMISTRY OLYMPIAD

D. Tasheva, P. Vasileva

AB INITIO STUDY ON STRUCTURAL PROPERTIES AND VIBRATIONAL ANALYSIS OF Z-(1-PYRIDIN-2-YL-METHYLENE) THIOSEMICARBAZONE COMPOUND

Mohammad Mehdi Akbarzadeh, Hajar Sahebalzamani

ALEXANDER ATANASSOV PANAIOTOV, DSC

Natasha Tzanova, Isa Hsdjiali, Nadezhda Raycheva

COMPUTER ASSISTED LEARNING SYSTEM FOR STUDYING ANALYTICAL CHEMISTRY

N. Y. Stozhko, A.V. Tchenysheva, L.I. Mironova

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА: БОРБА С ЕДНА ЛЕДЕНА ЕПОХА В ГОДИНАТА 3000 СЛЕД ХРИСТА. 3.¹⁾

Bruno Byurgel

Issue 3

DMITRI IVANOVICH MENDELEEV (1834 – 1907)

D. Klissurski

KNOWLEDGE OF AND ATTITUDES TOWARDS WATER IN 5\(^{TH}\), 6\(^{TH}\) AND 7\(^{TH}\) GRADE STUDENTS

Antoaneta Angelacheva, Kalina Kamarska

MATHEMATICS FOR TEACHERS AND STUDENTS: CALCULUS

B.V. Toshev

EFFECTS OF THREE COOPERATIVE LEARNING STRATEGIES ON THE PERFORMANCE OF SECONDARY SCHOOL STUDENTS IN PHYSICS

Isiaka Amosa Gambari, Mudasiru Olalere Yusuf

STUDENTS’ METACOGNITIVE SELFREGULATION – A CASE STUDY: MOLECULAR STRUCTURE PROBLEM SOLVING

Bambang Sugiarto, Prabowo, Suyono

TUNING THE ELECTRONIC PROPERTIES OF HETEROGENEOUS CATALYSTS: AN AUTHENTIC RESEARCH-BASED LABORATORY COURSE

Pawel Bernard, Gabriela Grzybek, Paweł Stelmachowski

VASSIL HRISTOV BOZAROV

Penka Bozarova, Zdravka Kostova

NEED TO LINK THE TWO CRUCIAL CONTEMPORARY STRATEGIES – SUSTAINABLE DEVELOPMENT AND INNOVATIVE ECONOMY

M. Lyubenova, G. Gushlekov, A. Assenov

AVAILABILITY AND TEACHERS’AWARENESS OF THE EXISTENCE OF SOFTWARE PACKAGES FOR DEVELOPING PHYSICS INSTRUCTION FOR SECONDARY SCHOOL STUDENTS IN MINNA, NIGERIA

Oluwole Caleb Falode, Nasir Adewale Ajala

LIVING NATURE

B.V. Toshev

RECENT PAPERS ON MISCONCEPTIONS IN TEACHING AND LEARNING OF SCIENCE

B.V. Toshev

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА: БОРБА С ЕДНА ЛЕДЕНА ЕПОХА В ГОДИНАТА 3000 СЛЕД ХРИСТА. 2.\(^{1}\)

Bruno Byurgel

Issue 2

Scientix: COMMUNITY FOR SCIENCE EDUCATION IN EUROPE

Svejina Dimitrova

HOW TO DEVELOP PUPILS’ COGNITIVE INTEREST ON THE BASIS OF THE SUBJECT „MAN & NATURE: STRUCTURE AND LIFE PROCESSES OF ORGANISMS“: IN-SERVICE TRAINING OF TEACHERS WITHOUT BIOLOGICAL EDUCATION. III

Maria Boycheva, Rositsa Davidova

INTERDISCIPLINARY LESSONS: ASTRONOMY WITH BELLES LETTRES AND INFORMATION TECHNOLOGIES

Nadka Dankova corresponding author, R. Bencheva, I. Kovachev

DIAGNOSTICS OF THE ENVIRONMENTAL CULTURE OF PUPILS: A CASE STUDY – TEACHING OF THE VI-A GROUP OF THE PERIODIC TABLE IN 8TH GRADE

Antoaneta Angelacheva

HIGHER EDUCATION PERSPECTIVES FOR AN EXCITING EDUCATIONAL EXPERIENCE – PART III: AN INDIAN CONTEXT

B.H.S. Thimmappa

THERMODYNAMIC AND INTERFACIAL STUDIES ON CO-CRYSTALS OF NICOTINAMIDE THIOUREA DRUG SYSTEM

Vishnu Kant and H. Shekhar, H. Shekhar

A COMPARATIVE EVALUATION OF THE METHODS USED FOR REDOX EQUATIONS BALANCING: ADVANTAGES AND DISADVANTAGES

I. L. Dukov

GENERIC INSTABILITY IN THE MODEL OF DIFFUSION-LIMITED AGREGATION (DLA): THE EFFECT OF GLOBAL RADII OF BIRTH AND KILLING

Hristina Popova, Desislava Petkova, Vesselin Tonchev

BOTYU ATANASSOV BOTEV

Zdravka Kostova, Margarita Topashka-Ancheva

CHRONOLOGY OF CHEMICAL ELEMENTS DISCOVERIES

Maria Atanassova, Radoslav Angelov

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА: БОРБА С ЕДНА ЛЕДЕНА ЕПОХА В ГОДИНАТА 3000 СЛЕД ХРИСТА. 1.\(^{1)}\)

Bruno Byurgel

Issue 1

ПРИРОДОНАУЧНА НЕГРАМОТНОСТ – КОНСТРУКТИВИЗЪМ – МИСКОНЦЕПЦИИ – ИСТОРИЧЕСКА ЧУВСТВИТЕЛНОСТ

B.V. Toshev

HOW TO MOTIVATE PUPILS OF 7\(^{TH}\) GRADE TO LEARN

Margarita Bozova, Petko Bozov

EDUCATION FOR ENHANCING SCIENTIFIC LITERACY

Adriana Tafrova-Grigorovа

A COMMENTARY ON THE GENERATION OF AUDIENCE-ORIENTED EDUCATIONAL PARADIGMS IN NUCLEAR PHYSICS

Baldomero Herrera-González

SOME STRATEGIES FOR MOTIVATION STUDENTS TO LEARN CHEMISTRY

A. Gendjova

INCREASING STUDENTS’ INTEREST IN CHEMISTRY WITH CONTEXT-BASED APPROACHES FOR CONTROL AND ASSESSMENT IN THE ENGLISH LANGUAGE PROGRAM AT MEDICAL UNIVERSITY IN VARNA

Zlatina Peteva, Lubomir Makedonski, Mona Stancheva

LEARNING OF CHEMICAL OBJECTS BY MEANS OF THE METHODS OF REFLECTION IN 6\(^{TH}\) GRADE

Kalina Kamarska, Darina Uzova, Milka Goleshova

EXEMPLARY MODEL OF CLUB ACTIVITIES IN SCHOOL

P. Galcheva, A. Hineva

PURIFICATION OF ANILINE AND NITROSUBSTITUTED ANILINE CONTAMINANTS FROM AQUEOUS SOLUTION USING BETA ZEOLITE

Talib M. Albayati, Aidan M. Doyle

ANALYTICAL CHEMISTRY IN BULGARIA: PROFESSOR DIMITER TSALEV

B.V. Toshev

PROFESSOR DIMITER KLISSURSKI AT 80

Nayden Naydenov

NEW UNIVERSITY TEXTBOOK IN MODERN PHYSICS

P. Ivanov

TEACHING SCIENCE IN THE BULGARIAN SCHOOLS FOR GIRLS (1897): PHYSICS AND CHEMISTRY

Year XXII, 2013

Issue 6

THE CALENDAR: OLD STYLE AND NEW ONE

Angel Paskalev

BEEKEEPING CLUB AT SCHOOL

Zlatka Garova

DIFFERENTIAL TEACHING IN SCHOOL SCIENCE EDUCATION: CONCEPTUAL PRINCIPLES

G. S. Uzbasheva

KINETIC THEORY OF THE IDEAL GAS: DERIVATION OF THE LAW OF MAXWELL AND BAROMETRIC FORMULA FROM THE KINETIC EQUATION OF BOLTZMANN

B.V. Toshev

STUDY OF PUPILS’ PERFORMANCES (SIXTH GRADE) ON SECTION „SUBSTANCES AND THEIR PROPERTIES“ IN THE SUBJECT „MAN AND NATURE“

Мs. Ivanichka Burovska, Stefan Tsakovski

INTERACTION OF IRON WITH NITRIC ACID: A COMPLEX REDOX REACTION

Alexander Zahariev

THEORETICAL INVESTIGATION ON THE CHOICE OF INDEPENDENT PARAMETERS FOR REDOX REACTIONS BALANCING WITH MORE THAN ONE DEGREE OF FREEDOM

Sashka Petkova, Maria Atanassova, Rumyana Chukleva

PSYCHOSOCIAL ENVIRONMENT OF CHEMISTRY LABORATORY CLASSROOMS IN IRANIAN HIGH SCHOOLS

Zahra Eskandari, Nabi.A Ebrahimi

DENSITY FUNCTIONAL THEORY OF THE EFFICIENCIES OF 2-PHENYLIMIDAZO[1,2-A]PYRIDINE AND 2-(M-METHOXYPHENYL)IMIDAZO[1,2-A] PYRIMIDINE AS CORROSION INHIBITORS FOR MILD STEEL

Banjo Semire, Ayobami Olusegun Odunola

TEACHING SOCIAL SCIENCES IN THE BULGARIAN SCHOOLS FOR GIRLS (1897): MORALITY

Compiled by B. V. Toshev

HISTORY AND PHILOSOPHY OF SCIENCE: SOME RECENT PERIODICALS (2013)¹⁾

Compiled by B.V. Toshev

45. НАЦИОНАЛНА КОНФЕРЕНЦИЯ НА УЧИТЕЛИТЕ ПО ХИМИЯ

Adriana Tafrova-Grigorova

Issue 5

UNDERSTANDING THE CONCEPT OF DIGESTIVE SYSTEM IN BIOLOGY USING COMPUTER SIMULATION

A.I. Gambari, A. A. Yaki, T. T. Olowe

FORMING KEY COMPETENCIES BY PROBLEM-BASED LEARNING OF CHEMISTRY IN SECONDARY SCHOOL

Vladimir Tzvetkov, Elena Boiadjievа

SNAPSHOT OF SCIENCE CLASSROOM TEACHING FROM THE POINT OF VIEW OF IDEAS OF CONSTRUCTIVISM: A CASE STUDY – SECONDARY SCHOOLS IN SOFIA, BULGARIA

J.E. Hollenbeck, Milena Kirova, Elena Boiadjieva, Adriana Tafrova-Grigorova

EXPLANATION OF FACTS AND PHENOMENA IN CHEMISTRY EDUCATION – CONSTRUCTIVIST APPROACH

Yordanka Stefanova

APPLICATION OF REFLECTIVE APPROACH TO THE BIOLOGY TEACHING IN SECONDARY SCHOOLS (9th – 11th GRADE)

Isa Hadjiali, Teodora Kolarova iate

TWO INVESTIGATIONS OF EXAMINERS’ PERCEPTIONS OF PRIOR KNOWLEDGE REQUIRED FOR SOLVING STOICHIOMETRIC PROBLEMS AND ITS RELATIONSHIP TO STUDENTS’ PRIOR KNOWLEDGE

Ayoade Ejiwale Okanlawon

ABOUT THE CHEMISTRY OF THE BEER

Ivelin Kuleff

NOBEL LAUREATES IN CHEMISTRY FROM THE TERRITORY OF FORMER YUGOSLAVIA

Milan D. Stojković

THE METEORITE FROM BELOGRADCHIK

B.V. Toshev

BINET CONSTRUCTION IN ONLINE STEREO 3D VISUALIZATION

S. Zabunov, M. Gaydarova

TEACHING SCIENCE IN THE BULGARIAN SCHOOLS FOR GIRLS (1897): NATURAL HISTORY

ВТОРИ НАЦИОНАЛЕН КОНГРЕС ПО ФИЗИЧЕСКИ НАУКИ 25 – 29 септември 2013 г., гр. София

Issue 4

DIMENSIONAL ANALYSIS: AN EXAPLE

Vesselin Tonchev

RECASTING THE DERIVATION OF THE CLAPEYRON EQUATION INTO A CONCEPTUALLY SIMPLER FORM

Srihari Murthy

CHEMICAL REACTIONS DO NOT ALWAYS MODERATE CHANGES IN CONCENTRATION OF AN ACTIVE COMPONENT

Joan Solaz-Portolés, Vicent Sanjosé

CRITICAL REMARKS ON THE MATRICULATION EXAM IN GEOGRAPHY IN 2013

Ivan Derenovski

CONTEMPORARY TRENDS IN THE VOCATIONAL TRAINING OF ENGINEERS

Nadia Ilieva, Elena Boiadjieva

DIDACTICAL TOOLS FOR DEVELOPING AN ENVIRONMENTAL CULTURE OF PUPILS IN CHEMISTRY IN THE SECONDARY SCHOOL

Antoaneta Angelacheva, Elena Gergova

POLYMETALLIC COMPEXES: CV. SYNTHESIS, SPECTRAL, THERMOGRAVIMETRIC, XRD, MOLECULAR MODELLING AND POTENTIAL ANTIBACTERIAL PROPERTIES OF TETRAMERIC COMPLEXES OF Co(II), Ni(II), Cu(II), Zn(II), Cd(II) AND Hg(II) WITH OCTADENTATE AZODYE LIGANDS

Bipin B. Mahapatra, S. N. Dehury, A.K. Sarangi, S.N. Chaulia

SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND Cu(II) AND Co(II) COMPLEXES OF L-PHENYLALANINE AND IMINODIACETIC ACID

G. Kumar, A. Munyaneza, G. Ditse

SCIENCE LITERACY IN THE FORMER YUGOSLAVIA: SCHOOL EDUCATIONAL PROGRAMS ON TV AND SCIENCTIFIC-POPULAR LITERATURE

Milan Stojković

COMPARISON OF PROPERTIES OF d-ELEMENT COMPOUNDS TO THOSE OF COMPOUNDS OF s- AND p-ELEMENTS WITH SIMILAR NUMBER OF VALENCE ELECTRONS

E. Kirkova

CELEBRATING 90TH ANNIVERSARY OF PROFESSOR ELENA KIRKOVA

A. Tafrova-Grigorova

SECOND PRINCIPLE OF THERMODYNAMICS: WHY ARE THE PROCESSES IN NATURE AND SOCIETY IRREVERSIBLE?

B.V. Toshev

TEACHING SCIENCE IN THE BULGARIAN SCHOOLS FOR GIRLS (1897): GEOGRAPHY

Issue 3

CHEMISTRY MINOR PROGRAMS: TEACHING AND LEARNING OF ANALYTICAL CHEMISTRY

S. Alexandrov, M. Boneva

ТOWARD THE MODERNIZATION OF PEDAGOGY: A CRITICAL REVIEW

Yurii Petrov Klissarov, Kalina Ivanova Belcheva

HOW TO DEVELOP PUPILS’ COGNITIVE INTEREST ON THE BASIS OF THE SUBJECT „MAN & NATURE: STRUCTURE AND LIFE PROCESSES OF ORGANISMS“: IN-SERVICE TRAINING OF TEACHERS WITHOUT BIOLOGICAL EDUCATION. II

Maria Boycheva, Rositsa Davidova

REMARKS ON THE SCHOOL CHEMISTRY IN BULGARIA: CHEMICAL THERMODYNAMICS AND CHEMICAL EQUILIBRIUM

B.V. Toshev

TEACHING AIDS IN PRESENTING THE TOPIC OF „THE PERIODIC TABLE OF ELEMENTS BY DMITRI IVANOVICH MENDELEEV“ AT THE PRIMARY SCHOOL

Milan D. Stojković

POSSIBILITIES FOR SKILLS FORMING IN BIOLOGICAL EDUCATION

Svetlana Angelova

SIMULATION OF THE FATTY ACID SYNTHASE COMPLEX MECHANISM OF ACTION

M.E. Mohammed, Ali Abeer, Fatima Elsamani, O.M. Elsheikh, Abdulrizak Hudow, O. Khamis Haji

TODOR JONCHEV (1859–1940) AND HIS CONTRIBUTION TO THE BULGARIAN CHEMICAL LITERATURE

Milen Zamfirov

FORMING OF CONTENT OF DIFFERENTIAL TEACHING OF CHEMISTRY IN SCHOOL EDUCATION OF UKRAINE

Galina Sergiivna Yuzbasheva

STUDY OF RADICAL-SCAVENGING ACTIVITY

Stanislav Stefanov Stanimirov, Zhivko Asenov Velkov

PROFESSOR JOHN WHITE WEBSTER, SCIENCE EDUCATOR AND CONVICTED MURDERER

William P. Palmer

Issue 2

ENVIRONMENTAL EDUCATION IN BULGARIA: INTERNATIONAL BACKGROUND AND KEY TRENDS

Zdravka Kostova

REVERSIBILITY AND DEFINITION OF WORK

Jamil Ahmad

TECHNIQUES OF THE SCHOOL EXPERIMENT IN SCIENCES, FOR BULGARIAN STUDENTS WITH SPECIAL NEEDS

Milen Zamfirov, Svetoslava Saeva

EXTRACTION-SPECTROPHOTOMETRY OF ION-ASSOCIATION COMPLEXES

Kiril B. Gavazov

BALANCING REDOX REACTIONS DEPENDING ON TWO DEGREES OF FREEDOM: INVESTIGATION OF THE DOMAINS FOR SELECTION OF THE INDEPENDENT PARAMETERS

Sashka Petkova, Maria Atanassova, Alexander Zahariev

LEARNING ENVIRONMENT OF UNIVERSITY CHEMISTRY CLASSROOMS IN IRAN

Zahra Eskandari, Nabi.A Ebrahimi

AGAIN ABOUT THE END OF THE PERIODIC TABLE OF CHEMICAL ELEMENTS

Ivelin Kuleff

HRISTO KOSTOV: THE COURSE OF LIFE AND SCIENTIFIC ACTIVITY

Hristo D. Dimitrov

Issue 1

SCIENCE EDUCATION IN SCHOLARLY PERIODICALS: TRENDS AND PROSPECTS

B.V. Toshev

DEVELOPMENT OF THE PERSONAL REFLECTION OF STUDENTS WHO STUDY MOLECULAR BIOLOGY, GENETICS AND CELLULAR ENGINEERING TECHNOLOGIES

Isa Hadjiali, Teodora Kolarova

PERSPECTIVES ON TECHNOLOGY ENHANCED LEARNING AND TEACHING FOR AN EXCITING LEARNING EXPERIENCE

B.H.S. Thimmappa

COLORFUL EXPERIMENTS FOR STUDENTS: SYNTHESIS OF INDIGO AND DERIVATIVES

Vanessa BIANDA, José-Antonio CONSTENLA, Rolf HAUBRICHS, Pierre-Léonard ZAFFALON

THE FIRST BOOK IN CHEMISTRY IN BULGARIAN (1871): TRUE AUTHORS AND SOURCES

A. Gendjova

ISOELECTRONIC MOLECULES AND IONS OF p-ELEMENTS

E. Kirkova

OBSERVING CHANGE IN POTASSIUM ABUNDANCE IN A SOIL EROSION EXPERIMENT WITH FIELD INFRARED SPECTROSCOPY

Mila Ivanova Luleva, Harald van der Werff, Freek van der Meer, Victor Jetten

SIMPLE EXPERIMENTS FOR BEGINNERS AT HOME

Nevyanka Encheva

PERSONAL OR COLLECTIVE KNOWLEDGE: HARRY COLLINS’ KNOWLEDGE NOTIONS OF TACIT KNOWLEDGE AND OF THE INDIVIDUAL AS AN EPISTEMIC PARASITE

Keith S. Taber

TZAR’S CAVE

Rafail POPOV

SCHOOL LABORATORIES AND EQUIPMENT

Year XXI, 2012

Issue 5

HOW TO MEASURE THE SCHOOL OUTCOME (ON THE EXAMPLE OF A SPECIFIC EDUCATIONAL GOAL)

Georgy Georgiev (physics & astronomy)

PERCEPTIONS OF THE WORLD: THE ROLE OF SCIENTIFIC EXPLANATION IN SCIENCE EDUCATION FOR FORMING THE WORLDVIEW OF STUDENTS

Yordanka Stefanova, Maria Minevska

CONCEPTUAL SCHEME OF THE SCHOOL COURSE IN CHEMISTRY: MACROSCOPIC APPROACH

B.V. Toshev

ROLE OF ULTRASONIC WAVES TO STUDY MOLECULAR INTERACTIONS IN AQUEOUS SOLUTION OF DICLOFENAC SODIUM

Sunanda S. Aswale, Sunanda S. Aswale Shashikant R. Aswale, Aparna B. Dhote

SIMULTANEOUS ESTIMATION OF IBUPROFEN AND RANITIDINE HYDROCHLORIDE USING UV SPECTROPHOTOMETRIC METHOD

Jadupati Malakar, Amit Kumar Nayak

COMPUTER-AIDED EDUCATIONAL TECHNOLOGIES IN THE LABORATORY EXERCISES IN PHYSICS

Gergana Kalpachka

A NEW FORMAL GEOMETRICAL METHOD FOR BALANCING CONTINUUM CLASSES OF CHEMICAL REACTIONS

Ice B. Risteski

DEPENDENCE BETWEEN STRUCTURE AND PROPERTIES OF COMPOUNDS OF P-ELEMENTS

E. Kirkova

GAPS AND OPPORTUNITIES IN THE USE OF REMOTE SENSING FOR SOIL EROSION ASSESSMENT

Mila Ivanova Luleva, Harald van der Werff, Freek van der Meer, Victor Jetten

RADIOCHEMISTRY AND ARCHEOMETRY: PROF. IVELIN KULEFF, DSc

B.V. Toshev

INTERACTIVE METHODS IN „CHEMISTRY AND ENVIRONMENT“SCHOOL SUBJECT

Adriana Tafrova-Grigorova

A MODERN MANUAL FOR ACTIVE LEARNING IN SCIENCE

Adriana Tafrova-Grigorova

Issue 4

TEACHING THE CONSTITUTION OF MATTER

Małgorzata Nodzyńska, Jan Rajmund Paśko

ENCOURAGING HIGHER LEVEL QUESTIONING BY THE USE OF TEACHING TECHNOLOGY

Hatixhe Ismajli

BLOOD CLOTTING

Masha Radoslavova, A. Dragoeva

CATALITIC VOLCANO\(^{1)}\)

Emil Lozanov

SECONDARY SCHOOL GRADUATION IN BULGARIA: CHEMISTRY EXAMS (2008-2011)

Milen Zamphirov

43^RD INTERNATIONAL CHEMISTRY OLYMPIAD

P. Vasileva, Penka TsANOVA

NEW VERY HARD PROBLEMS OF BALANCING CHEMICAL REACTIONS

Ice B. Risteski

THE 50TH ANNIVERSARY OF SEMICONDUCTOR LАSER

Lyubomir Lazov iate

JUBILEE: PROF. DR. BORIS GALABOV

B.V. Toshev

PROFESSOR IWAN NIKOLOV STRANSKI – THE FORGOTTEN GENIUS?

Christo N. Nanev

ПЪРВИЯТ ПРАВИЛНИК ЗА УЧЕБНИЦИТЕ (1897 Г.)

JOHN DEWEY: HOW WE THINK (1910)¹⁾

ИНФОРМАЦИЯ ЗА СПЕЦИАЛНОСТИТЕ В ОБЛАСТТА НА ПРИРОДНИТЕ НАУКИ В СОФИЙСКИЯ УНИВЕРСИТЕТ „СВ. КЛИМЕНТ ОХРИДСКИ“. БИОЛОГИЧЕСКИ ФАКУЛТЕТ

Issue 3

COGNITIVE-AND-EDUCATIONAL ASSIGNMENTS FOR FORMING AND DEVELOPING MODELING COMPETENCE IN CHEMESTRY AND ENVIRONMENT EDUCATION

Nikolay Tsankov

TEACHING INTERMOLECULAR FORCES WITH LOVE ANALOGY: A CASE STUDY

Mehmet Karakas

PROFESSIONAL PROFILE AND STANDARDS FOR THE TEACHER IN BIOLOGY

Natasha Tzanova, Nadezhda Raitcheva

ON THE EXTERNAL EVALUATION OF TEACHING AND LEARNING IN “MAN AND NATURE” – 4^TH GRADE: SPECIAL SCHOOLS FOR BLIND AND DEAF STUDENTS IN BULGARIA

Milen Zamphirov

SCIENCE TEACHERS’ VIEWS ON THE CONSTRUCTIVIST LEARNING ENVIRONMENT IN THE BULGARIAN SCHOOL

Adriana Tafrova-Grigorova, Milena Kirova, Elena Boyadzhieva

PREPARATION AND CHARACTERIZATION OF ACTIVATED CARBON DERIVED FROM RUBBER SEED COAT

Olugbenga Solomon Bello, Mohd Azmier Ahmad

METHOD OF MEASURING OF SUN TIME WITH A CYLINDICAL SUNDIAL

Zvezdo Kostov Hristov

TO ENHANCE INTEREST OF THE PUPILS TO CHEMISTRY AND CHEMISTRY EDUCATION

Lyudmila Genkova, Svoboda Beneva

THE BEGINNING OF CHEMISTRY TEACHING IN APRILOV SCHOOL IN GABROVO

Maria Nikolova

TEXTILE EFFLUENT TREATMENT AND DECOLORIZATION TECHNIQUES – A REVIEW

Мr. Bizuneh Adinew

JUBELEE: DOC. ZDRAVKA MALCHEVA

Milena Kirova

CONSTRUCTIVISM: THEORY AND PRACTICE

B.V. Toshev

ПРИРОДОНАУЧНОТО ОБРАЗОВАНИЕ В БЪЛГАРИЯ – ФОТОАРХИВ

Issue 2

“THE MAGIC OF CHEMISTRY” – A DAY OF CHEMISTRY AT THE LANGUAGE SECONDARY SCHOOL “ACADEMICIAN LYUDMIL STOYANOV”

Stefka Mihailova

ENHANCEMENT THE INTEREST OF STUDENTS TO SCIENCE THROUGH DRAMA ACTIVITIES

Maria Nikolova

THE INTERNATIONAL YEAR OF CHEMISTRY 2011 IN POSTAGE STAMPS

B. V. Toshev

GENERIC SKILLS AND COMPETENCES FOR PROFESSIONAL DEVELOPMENT OF THE CHEMISTRY GRADUATES OF SOFIA UNIVERSITY

A. Gendjova, А. Kamusheva MEd

THE PORTFOLIO AS A TOOL FOR MONITORING OF PROFESSIONAL COMPETENCE OF SCIENCE TEACHERS

Petinka Galcheva, Antoaneta Ivanova Hineva

A NEW ALGEBRA FOR BALANCING SPECIAL CHEMICAL REACTIONS

Ice B. Risteski

RE-EXAMINING TRADITIONAL AND ROTATIONAL CANONICAL PARTITION FUNCTIONS FOR UNDERGRADUATE PHYSICAL CHEMISTRY: EXACT AND INSIGHTFUL VIEWS

Mohamad Toutounji

PROFESSOR DIMITER IVANOV – LIFE AND SCIENTIFIC WORK

Hristo Ivanov

INFORMATION AND COMMUNICATION TECHNOLOGIES IN SCIENCE EDUCATION: COMPETENCIES AND BELIEFS OF BULGARIAN TEACHERS

Milena Kirovа, Elena Boyadzhieva, Roumiana Peytcheva-Forsyth

A GUIDE FOR DOCTORAL STUDENTS IN THE SCIENCE OF EDUCATION

B.V. Toshev

ALGOLOGY

T. G. Nikolov

ЗА ПРИРОДНИТЕ НАУКИ И ЗА ПРАКТИКУМА ПО ФИЗИКА (Иванов, 1926)

Issue 1

SCIENCE EDUCATION IN THE SCIENCE OF EDUCATION

B.V. Toshev

MEDICINE IN THE EYES OF THREE SCIENCES, THREE TEACHERS AND ONE CLASS

Yuliana Belcheva, Antoaneta Stamboldjieva

VISUALIZATION OF HEAT PHENOMENA BY PHYSLETS®

Klavdiy Tutulkov

ADAPTATION STUDY OF MOTIVATION TOWARD SCIENCE LEARNING QUESTIONNAIRE FOR ACADEMICALLY ADVANCED SCIENCE STUDENTS

Serdar Koksal

VERBAL ASSOCIATIONS OF BULGARIAN TEENAGERS FOR “SUBSTANCE”

Yordanka Dimova, Kalina Kamarska

HIGH АND LOW ORDER THINKING SKILLS IN BULGARIAN АND CANADIAN SCIENCE SCHOOL CURRICULUM

A. Gendjova

A SIMPLE EXPLANATION FROM THE SIGN OF r- VALUE FOR THE KIND OF CHARGE THAT DEVELOPS IN THE INTERMEDIATE OR THE TRANSITION STATE OF A REACTION SERIES: A ONE-HOUR PHYSICAL-ORGANIC CHEMISTRY GRADUATE CLASSROOM LECTURE

R. Sanjeev, V. Jagannadham, R. Veda Vrath

MURPHY’S LAW IN CHEMISTRY

Milan Stojkovic

42^nd INTERNATIONAL CHEMISTRY OLYMPIAD

D. Tasheva, P. Vasileva

SOLUBILITY AND DISSOLUTION ENHANCEMENT OF IBUPROFEN BY SOLID DISPERSION TECHNIQUE USING PEG 6000-PVP K 30 COMBINATION CARRIER

M. Saquib Hasnain, Amit Kumar Nayak

HISTORY OF PHYSICS

B.V. Toshev

HISTORICAL GEOGRAPHY OF ETHIOPIA

B.V. Toshev

GEOGRAPHY AND JOURNEYS

V. B. Toshev

СЕМЕЙНИ УЧЕНИЧЕСКИ ВЕЧЕРИНКИ

ACADEMICIAN ROSTISLAV KAISHEV – A LIFE DEDICATED TO SCIENCE

Aleksandar Milchev, Stoyan Stoyanov