#### Table of contents

Bulg. J. Phys. vol. **27** no. 4 (2000)

**Multiscale Analysis of a Davydov Model with an Harmonic Long Range Interaction of Kac–Baker Type**

D. Grecu, A. Vişinescu

pp. 001-005, [abs, pdf]

**Dosimetric Personal Control of Occupational Staff by Film and TL Dosimeters**

J. Mberica, L. Qafmolla

pp. 006-011, [abs, pdf]

**Pore Formers Effect on UO**

_{2}Sintered PelletsD. Ohai, J. Dumitrescu, V. Balan, M. Mihalache

pp. 012-015, [abs, pdf]

**Properties of Some Polyurethanes Containing Active Biological Segments**

L Diaconu, F. Topoliceanu, T. Buruiana, E.C. Buruiana

pp. 016-019, [abs, pdf]

**The Quantum Nondemolition Experiments and the Uncertainty Principle**

Z. Gurel, A. Gurel

pp. 020-022, [abs, pdf]

**Some Common Misconceptions in Fundamental Magnetism and Electricity**

M. Erol, H. Çallica, S. Çalişkan, R. Kalem, N. Kavcar

pp. 023-026, [abs, pdf]

**Methods for Presenting Key Concepts in Physics for MS Students by "Photon-MD" Program**

P.E. Sterian, C.I. Toma

pp. 027-030, [abs, pdf]

**Learning Electricity by Simulations**

M. Logofătu

pp. 031-034, [abs, pdf]

**Microcomputers-Based Laboratory for Physics Education**

B. Logofătu, M. Munteanu

pp. 035-038, [abs, pdf]

**Computer Tools for Improving Higher Education**

B. Dumitru, N. Rizescu, R.I. Trascu , D. Ghemez, M. Ghelmez (Dumitru), M. Nedelcu

pp. 039-042, [abs, pdf]

**An Investigation on Assessment System in Science Teacher Education**

M. Bakac, H. Aydin

pp. 043-046, [abs, pdf]

**Student Teachers' Views to Science Textbooks in Turkey**

H. Aydin, M. Bakac

pp. 047-050, [abs, pdf]

**The Dynamics of the Wave-Function Collapse**

A. Gurel, Z. Gurel

pp. 051-054, [abs, pdf]

**Milestones in the Development of Physics in the Sofia University (1889?1945)**

G. Kamisheva, A. Vavrek

pp. 055-058, [abs, pdf]

**Contents of the Courses in Physics in the Sofia University (1889?1945)**

G. Kamisheva, A. Vavrek

pp. 059-062, [abs, pdf]

**Glass Conversion of Lead-Rich Solid Industrial Wastes**

G. Kaimakamis, P. Kavouras, Th. Ioannidis, Th. Kehagias, E. Pavlidou, Ph. Komninou, S. Kokkou, I. Antonopoulos, M. Sofoniou, A. Zouboulis, C.P. Hadjiantoniou, A. Prakouras, Th. Karakostas

pp. 063-066, [abs, pdf]

**A Solar Pond Model with Insulated and Glass Covered Surface (IGCSP)**

N. Özek, M. Karakilçik, N. Ç. Bezir

pp. 067-070, [abs, pdf]

**Stand for Solar Water Collector Testing**

R .Kirilov, M. Stoyanova

pp. 071-074, [abs, pdf]

**A Combined Heating and Cooling System Using Entirely Solar Energy**

P. Vitanov, St. Stamov, D. Velkov, M. Zlateva, N. Tyutyundjiev

pp. 075-078, [abs, pdf]

**The Process of Heat Transfer in a Solar-Electrical Conversion System**

S. Erel, E. Arcaklioglu, G.K. Erel

pp. 079-082, [abs, pdf]

**Analysls of the Thermal Processes and the Shapes of Melted Zones at Electron Beam Welding and Melting**

E. Koleva, G. Mladenov

pp. 083-096, [abs, pdf]

**Transducer and Method for Quantitative Non-Destructive Evaluation of Pressure Tubes of the Nuclear Reactor from Nuclear Power Plants**

R. Grimberg, A. Savin, D. Prémel, B.E. Bradu

pp. 097-100, [abs, pdf]

**Evaluation of Fatigue State of Si 3% -Fe Sheets Based on Non-Destructive Magnetic Measurements**

R. Grimberg, M.L. Craus, A. Andreescu, A. Savin

pp. 101-104, [abs, pdf]

**Eddy Current Evaluation of Delamination in Carbon-Epoxy Composite Materials**

R. Grimberg, A. Savin, R. Steigmann, D. Prémel

pp. 105-108, [abs, pdf]

**Propagation of Lamb Waves in Layered Wood Materials: Debonding Evaluation**

R. Grimberg, A. Lupu, C.R. Rotundu, A. Andreescu

pp. 109-112, [abs, pdf]