Recent studies have been showed important role of elevated iron levels in pathogenesis of Type 2 Diabetes mellitus (T2D) and insulin resistance. The aim of this study was to determine serum of free iron concentration in T2D patients and find out associations with lipid profile. The study included 51 participants (27 healthy control and 24 no treated diabetes patients), with ages from 45 to 65 45-65 ages and both gender. As expected, concentrations of serum iron were elevated in diabetic patients compare to healthy subjects while statistical significant difference were shown between iron levels in control group and group with good control of glycaemia (p<0.05). In addition, there was a significant positive correlation between free iron concentration and LDL cholesterol levels and negative significant correlation between iron concentrations with HDL cholesterol in diabetics (p<0.05). These findings suggest that increase serum of free iron concentrations may have an important role and influence in development of disease, especially in lipid metabolism and profile as well in risk of further complications of diabetes.

From the point of welding procedure evaluation, it is important to analyse welds for their impact toughness and transition temperature for three main zones: weld metal, heat-affected zone and base metal. This paper covers butt welds of two QT steel grades, 690 and 890, with thicknesses of 30 mm and 20 mm, respectively. They are interesting regarding yield strength and characteristic weld zones. Basic details of GMAW process used in experiment are provided, with temperatures for impact toughness tests of weld zones varied from +20 °C down to -60 °C. Based on acquired experimental results of impact toughness, fitting curves were developed by use of Oldfield model, i.e. hyperbolic tangent function. Acquired transition temperatures (TT) from fitting curves show mostly allowable values for all three weld zones. As expected, lower strength grade 690 possess higher impact toughness, in comparison to higher strength grade 890. The standardized criteria of minimal absorbed energy of 30 J (KV) and 50% of shear fracture (SF) show different transition temperatures (TT-30J and TT-50%SF), while general dependence of impact toughness to shear fracture (KV vs. SF) shows a reasonable trend. Finally, used GMAW procedures may be considered as acceptable, since for both steel grades (690 and 890) all three weld zones show better TT-30J values than minimal required by standard (TT-30J=-40 °C) for QT structural steels.

The Bosnia and Herzegovina (BiH) erosion map was made in 1985, however, over a period of 35 years, there has been a substantial change in the values of most erosion factors, resulting in the change of the erosion intensity. Changes relate to demographics, urbanization and land use as well as climate. The increase in temperature and the occurrence of extremes caused significant environmental and economic consequences (May 2014 floods). This situation is more pronounced in the northern part of the country, especially in the lower parts of the larger basins. Risk assessment procedures using modern software and hardware solutions can help decision-makers to recognize sites where forest should not be cut down, certain crops should not be grown or soil conversation measures are necessary. Therefore, the aim of this research is to estimate the intensity of erosion processes in one such watershed in BiH the Brka watershed, taking into consideration current conditions and using modern hardware and software solutions. To calculate erosion intensity the Gavrilovic method supported with GIS techniques was used. The soil protection (x), soil erodibility (y) and type and extent of erosion (φ) coefficients were calculated using digital maps: CORINE 2018 (grid size 100 m x 100 m) land cover, soil map of BiH and open-source satellite images. The slope was calculated from the BiH digital elevation model (25 m x 25 m). The Brka watershed area (184.09 km 2 ) was divided into four basins: Maočka Rijeka (51.56 km 2 ), Rahička Rijeka (24.26 km 2 ), Zovičica (75.30 km 2 ) and direct basin of Brka (32.94 km 2 ). The highest average erosion intensity was determined for Zovičica basin, where Z=0.56. The calculated mean annual production of sediment per basin varies from 5,746 for Rahička Rijeka to 57,089 m 3 year -1 for Zovičica, with total Brka river watershed sediment yield of 120,754 m 3 year -1 .

This paper presents a low-cost, single sensor autonomous mobile robot. The proposed system is able to map an indoor environment, while at the same time localizing itself within it, and solving the SLAM (Simultaneous Localization and Mapping) problem using data gathered from the sensor. It is able to navigate the environment, choosing safe paths for exploration based on the data acquired by mapping and localization. The system is based on commercially available, in-expensive hardware, while the software is developed with open-source ROS (Robot Operating System) packages. The ability for autonomous navigation of the proposed system has been verified through real-world experiments. The system offers a simple to build platform, which can easily be extended.

We clarify open issues in relating low- and high-energy observables, at next-to-leading order accuracy, in models with a massive leptoquark embedded in a flavor nonuniversal SU(4)×SU(3)×SU(2)×U(1) gauge group. Extending previous work on this subject, we present a complete analysis of the O(αs) corrections to the matching conditions of semileptonic operators at the high scale. These corrections are not negligible, but they do not exceed the 10% level and are subleading compared to the O(α4) corrections proportional to the leading leptoquark coupling, which is expected to be much larger than the QCD coupling in the parameter space region of phenomenological interest. We further analyze the impact of radial modes, both at O(α4) and at O(αs) accuracies, highlighting their role in the renormalization of the theory.

Although the Internet has become the essence of communication, from an advertiser’s perspective digital advertising remains underexplored. This paper examines the effects of digital media buying efforts on advertisers in Bosnia and Herzegovina, while looking into the methodology of digital media usage behind the actual effects. A combination of secondary research analysis and qualitative research techniques was used. The empirical part is based on in-depth interviews with advertisers and representatives from the digital advertising industry.Perceptions and knowledge of digital advertising are the key drivers for a successful implementation of digital media buying, and advertisers in Bosnia and Herzegovina are aware of its most distinctive qualities. The success of the media buying campaigns relies on brand objectives and choosing the means suited for fulfilling the given goals, which in turn leads to the findings that the focus of companies’ strategies is directed towards the cost-efficient medium usage, rather than solely performance-oriented ones. Measurement of the effects and return on the investment depends on the success of setting up a goal and isolating digital from other marketing efforts.

: A numerical and an empirical method for calculating nonlinear load-settlement curves for shallow foundations on sand are examined and used in a new methodology. Both methods have merits and drawbacks. The drawbacks are overcome by the methodology proposed and verified in the paper. This methodology combines the merits of each method. For this purpose, a modification of the empirical method is proposed that accounts for the finite initial soil stiffness at very small strains. Computer programs with sophisticated nonlinear stress-strain relationships, such as Hardening Soil Small in Plaxis 2D, which are versatile in solving complex foundation problems, can cover strains from very small to large. When the foundation soil is layered, it is proposed to fit such a numerical load-settlement curve against the modified empirical relationship for each sand layer separately. This requires cone penetration tests, measurements of the shear wave velocity, and basic laboratory tests. The methodology is described and applied at two locations where load tests on footings were carried out. At one location there was a top layer of clay, which was also taken into account. The results of the application of the proposed methodology are very good.