Results obtained by studying the possibility of replacing cement in mortars with local industrial by-products, i.e. with silica fume and red mud, are provided in the paper. The results of fresh and hardened mortar properties tests conducted on five mixtures in two series are presented. 10% of cement was replaced with silica fume, and 0%, 5%, 10%, 15% and 20% of cement weight was replaced with red mud. The first series was tested after 28 days of curing, and the second series was subjected to freezing and thawing cycles after proper curing, and then submitted to testing. The results point to satisfactory behaviour of mixtures with a low red mud content.

Preface vii List of participants ix Rings whose proper images are almost self-injective Adel Alahmadi, André Leroy, and Surender K. Jain 1 Enveloping skewfields of the nilpotent positive part and the Borel subsuperalgebra of osp(1, 2n) Jacques Alev and François Dumas 7 The Krull-Schmidt-Remak-Azumaya Theorem for G-groups Meltem Altun-Özarslan and Alberto Facchini 25 Good codes from metacyclic groups Samir Assuena and César Polcino Milies 39 The prime ideals and simple weight modules of the algebra U(b V3) V. V. Bavula and T. Lu 49 n-torsion clean rings Peter Danchev and Jerzy Matczuk 71 Generating characters of non-commutative Frobenius rings Steven T. Dougherty, Arda Kör, and André Leroy 83 Constacyclic codes over local rings of order 16 Steven T. Dougherty and Esengül Saltürk 93 Skew Reed-Muller codes Willi Geiselmann and Felix Ulmer 107 The extension theorem for bi-invariant weights over Frobenius rings and Frobenius bimodules Oliver W. Gnilke, Marcus Greferath, Thomas Honold, Jay A. Wood, and Jens Zumbrägel 117 Dual skew codes from annihilators: Transpose Hamming ring extensions José Gómez-Torrecillas, F. J. Lobillo, and Gabriel Navarro 131 Injective hulls of simple modules over nilpotent Lie color algebras Can Hatipoğlu 149 U -rings generated by its idempotents Yasser Ibrahim and Mohamed Yousif 157

Cilj rada je da se ispita korelacija između dostignutog nivoa tehnologije i inovacija i razvoja finansijskog tržišta, indeksa humanog razvoja i bruto domaćeg proizvoda po glavi stanovnika. Istraživačko pitanje glasi: „Da li su, i u kakvoj vezi, nivo tehnologije i inovacija sa indeksom razvijenosti tržišta, indeksom ljudskog razvoja i BDP-om po glavi stanovnika?” Cilj istraživanja je da utvrdimo da li ima osnova za verovanje da je „kopiranjem” određene zemlje po nivou digitalizacije i inovacija moguće dodatno razviti finansijsko tržište, uticati na nivo ljudskog razvoja ili na povećanje BDP-a po glavi stanovnika. Metode korištene u radu su regresiona analiza, odnosno prosta linearna regresija, te analiza i sinteza prethodnih istraživanja i teoretskih nalaza, da bi zaključci bili izvučeni metodom indukcije. Rad predstavlja doprinos autora ekonomskoj teoriji i praksi, te široj javnosti. Rezultati istraživanja još ukazuju i da bi bilo racionalno da finansijski posrednici u zemljama u razvoju razmotre izmjenu svojih poslovnih modela i mogućnosti za njihovo prilagođavanje ubrzanim tehnološkim promjenama.

A few years ago, the expert public was discussing the consequences of consolidating the EU countries' representation in the IMF's Executive Board. The main idea was that EU members should be split into two constituencies. - the first one with members of the eurozone and the other a members outside the eurozone. The subject of this paper is to analyse the voting power in the Executive Committee of the International Monetary Fund using the Penrose-Banzhaf Index (PBI) and the Koleman's Index (CI). The aim of the paper is to express the power of voting and the possibility of blocking certain decisions in relation to the position in the constituency. We will also take a look at the characteristics of the official missions of the IMF in order to determine the importance of the results and recommendations arising from the visit of the IMF team to the country.