| PHYSICS | | |
| Hazem Ali Attia | Ion slip effect on the unsteady flow of a dusty Casson fluid through a circular pipe | 5 |
| Hazem Ali Attia | On the effectiveness of porosity on unsteady Couette flow and heat transfer between parallel porous plates with exponential decaying pressure gradient | 17 |
| Hazem Ali Attia | Time varying Hartmann flow with heat transfer of a power-law fluid with uniform suction and injection under constant pressure gradient | 25 |
CHEMISTRY | | |
Slavko Radenković Ivan Gutman | On Hosoya bond order of alternant nonbenzenoid molecules | 39 |
Hanumappa B. Walikar Harishchandra S. Ramane Leela Sindagi Shailaja S. Shirakol Ivan Gutman | Hosoya polynomial of thorn trees, rods, rings, and stars | 47 |
Jelena Đurđević Boris Furtula Ivan Gutman Slavko Radenković | Dependence of Hess-Schaad resonance energy on Kekulé structures | 57 |
BIOLOGY | | |
Duško L. Brković Ljiljana Čomić Slavica Solujić-Sukdolak | Antibacterial activity of some plants from family Apiaceae in relation to selected phytopathogenic bacteria Table | 65 |
| Bela F. Blesić | Investigations of Dipluras on south-east part of Rudnik Mountain | 73 |
Ana Mitrovski-Bogdanović Bela Blesić | Investigation of soil Apterygota (Insecta) in Memorial Park Šumarice (Kragujevac) | 77 |
| Vitko M. Šorić | Redescription and some ecological characteristics of Alburnus arborella (Bonapartae, 1844) | 83 |
Ana Pešić Mirko Đurović Slobodan Regner Aleksandar Joksimović Vladica Simić | Length-weight relationship of juvenile sardine Sardina pilchardus (Walbaum, 1792) from Boka Kotorska Bay | 91 |
Ljiljana Čomić Ivana Radojević Svetlana Ćurčić Aleksandar Ostojić | Database for monitoring, protection and management of reservoirs in Serbia | 97 |
Branislav Ranković Snežana Simić Dragana Bogdanović | Phytoplankton as indicator of water quality of lakes Bubanj and Šumarice during autumn | 107 |
| Aleksandar Ostojić | Zooplankton of the Bovan Reservoir | 115 |
Vladica Simić Svetlana Ćurčić Ljiljana Čomić Snežana Simić Aleksandar Ostojić | Biological estimation of water quality of the Bovan Reservoir | 123 |
| Snežana Pešić | Eutrophication and aquatic weevils (Coleoptera: Curculionoidea, Curculionidae) | 129 |
Biljana Bojović Jovanka Stojanović | Some wheat leaf characteristics in dependence of fertilization | 139 |
Desimir Knežević Aleksandra Yurievna-Dragovich Nevena Đukić | Polymorphism of Gli-B1 alleles in 25 Kragujevac’s wheat cultivars (Triticum aestivum L) | 147 |
Desimir Knežević Veselinka Zečević Danica Mićanović Milomirka Madić Aleksandar Paunović Nevena Đukić Dušan Urošević Biljana Dimitrijević Srđan Jordačijević | Genetic analysis of number of kernels per spike in wheat (Triticum aestivum l.) | 153 |
Danica Mićanović Veselinka Zečević Dušan Urošević Desimir Knežević | Nitrogen content in the seedlings of wheat as parameter for selection on nitrogen fixation Graph | 159 |
Veselinka Zečević Desimir Knežević Danica Mićanović Dušan Urošević | Influence of seed maturity on early seedling vigor in wheat | 165 |