Genetic structure of two human populations, indigenous and migratory population in the area of the Tuzla region, was analyzed with respect to some static and dynamic-morphological properties. The analyzed genetic data were collected by direct observation and survey of 472 pupils of school age. The investigated parameters of genetic heterogeneity were estimated by: analysis of the frequency of recessive phenotypes for every observed property, t-test analysis, and assessment of intragroup variation by analysis of Wahlund variance. Based on the obtained results it was observed that the frequency of the recessive homozygote for most of the analyzed properties was slightly higher in migratory populations. All values obtained by Wahlund variance analysis indicated a small genetic differentiation.

MtDNA variations, determined in terms of mtDNA haplogroups, were analyzed, the sample consisted of the human population of Bosnia and Herzegovina from the teritory of the Tuzla region. The analysis included a total of 245 mtDNA samples (kin unrelated individuals). Determination of mtDNA haplogroups was studied by using haplogroup-specific PCR-RFLP markers of a coding region of mtDNA. We observed that 95.11% of investigated individuals in the Tuzla region belong to the Western-Euroasian mtDNA haplogroups: H, V, T, I, J, K, U, X, W. The impact of migratory activities on the population structure of the Tuzla region was estimated by analysis within- and of intergroup genetic differences (index of genetic specificities, pairwise FST analysis and exact-p test) of indigenous and migrant categories (recent, internal, and historical). The analysis showed that a significant demographic influence on the genetic structure of indigenous people was exerted by the category of recent migrants only.

Diversity of nuclear microsatellite markers were analyzed in a reference sample of the population of northeast Bosnia and Herzegovina. 437 samples taken from unrelated individuals were processed and three samples of paternity proof were shown. Detection effectiveness profile of the research, points to a valid choice of method of extraction, amplification and genotyping short tandem repeat (STR) loci with PowerPlextm16 kit. Genetic analysis of allelic variants of the 15 STR loci PowerPlextm16 kit detected 17 samples determined as rare allelic variants or microvariants. Samples were divided into 15 different allelic variants at 7 different loci, and are: in locus D7S820, D16S539, D3S1358, D18S51, PENTA D, PENTA E and in locus vWA. Genetic analysis of mutations in cases of paternity determined three examples of single-step mutations in the loci FGA, Penta D and D3S1358. Genetic analysis of observed STR loci detected three allelic variant of genotype combination 7/10/11.3 in locus D7S820 Type II. Population genetic analysis of STR loci in a representative sample of the population of northeast Bosnia and Herzegovina included the application of the assessment tests of within-population genetic diversity and interpopulation diversity, as well as genetic differentiation between populations: North-eastern Bosnia and Herzegovina (BH) and BH general reference, then the Croatian population, Macedonian, Serbian and Slovenian. Based on the result analysis of specific forensic parameters, it can be assumed that the most informative marker is PENTA E for population genetic analysis and forensic testing in the population of northeast Bosnia and Herzegovina. Research results fit regional STR database of this part of Europe.

The present paper analyzes the operation of the plant for washing stone aggregate 0/2 mm. Researches were conducted on a semi fixed plant for washing aggregates at the open pit 'Drenik' in Srebrenik. Positions of exploration works were on dispenser entrance points, hydrocyclones, distribution system for water supply rubber belt conveyors, etc.). The methods for measuring material flow, calculation the capacity of conveyors, laboratory methods for grain-size distribution of the obtained material were used in this work. The research results are present in the form of tabular data and dependence diagrams of filler content (fractions of technical stone aggregate, granulation -0.063 mm) on capacity of dosed material.

This paper deals with the production of limestone at the stable plant separation of the open pit 'Duboki potok-Bijela rijeka'. Besides that, the effects of different levels of production and material flows were researched. Research was carried out in a fixed plant separation of the open pit limestone 'Duboki potok-Bijela rijeka' in Duboki Potok. Positions of research were on the secondary part of separation (impact crusher, routers materials, funnels, rubber conveyors, vibrating screens, etc). In the course of using different methods of measuring material flow, calculating capacity conveyors, laboratory methods where used in measuring size and distribution obtained material, and particle shape. The research results were reported in: - particle size distribution diagrams of the obtained aggregate stone with the best bands of particle size distribution - defining the functional dependence of impact crusher gap size distribution and structure of the obtained materials.