We have used the Kolmogorov complexities and the Kolmogorov complexity spectrum to quantify the randomness degree in river flow time series of seven rivers with different regimes in Bosnia and Herzegovina, representing their different type of courses, for the period 1965–1986. In particular, we have examined: (i) the Neretva, Bosnia and the Drina (mountain and lowland parts), (ii) the Miljacka and the Una (mountain part) and the Vrbas and the Ukrina (lowland part) and then calculated the Kolmogorov complexity (KC) based on the Lempel–Ziv Algorithm (LZA) (lower—KCL and upper—KCU), Kolmogorov complexity spectrum highest value (KCM) and overall Kolmogorov complexity (KCO) values for each time series. The results indicate that the KCL, KCU, KCM and KCO values in seven rivers show some similarities regardless of the amplitude differences in their monthly flow rates. The KCL, KCU and KCM complexities as information measures do not “see” a difference between time series which have different amplitude variations but similar random components. However, it seems that the KCO information measures better takes into account both the amplitude and the place of the components in a time series.

In this article, we study the existence of gradings on finite dimensional associative algebras. We prove that a connected algebra A does not have a nontrivial grading if and only if A is basic, its quiver has one vertex, and its group of outer automorphisms is unipotent. We apply this result to prove that up to graded Morita equivalence there do not exist nontrivial gradings on the blocks of group algebras with quaternion defect groups and one isomorphism class of simple modules.

Introduction: Despite growing progress of perinatal medicine and perinatal care, between 9-19% of preterm infants are born each year. Improvement in survival of infants and the reduction in infant mortality rates is a key role of perinatal quality healthcare. The Aim: To evaluate the perinatal outcome of preterm infants in maternity wards of the Federation of Bosnia and Herzegovina for a period of one year. Material and methods: Of 22 897 live newborns, the research criteria matched 669 (2.9%) preterm in- fants with complete medical records in ten cantons of the Federation Bosnia and Herzegovina. We analyzed data from maternity wards documentation and dischar- ge letters from tertiary health care centers. Results: Most deliveries were in the Tuzla and Sa- rajevo Canton with 42.5% of preterm infants. The mean gestational age of preterm infants was 31.4 weeks, with SD ± 5.34, and the mean birth weight 1295 grams, SD ± 234.2. The mean Apgar score was 4.6 ± 2.1, and in the fifth minute 6.6 ± 1.9. Of 669 examinees, there were 345 (51.56%) males and 324 (48.44%) females (51.56 vs 48.44; 2 = 1.19; P = 0.27). By analyzing the frequency of preterm infant birth rate according to weight categori- es, we found a significant difference in some levels of perinatal health institution, between the 1 st

Student engagement should be one of the most powerful drivers for improvement of quality teaching in higher education. As students are direct beneficiaries of quality teaching, they are able to provide crucial feedback not only on what works well but also on what they would like to be done differently and how. The paper presents results of research related to students' perception of course Accounting Information Systems (AIS) and way of its implementation at the Faculty of Economic - University of Mostar. At this course lectures include many opportunities for active student engagement through cooperative learning activities (debates, team work, and presentation of project results). The authors developed two questionnaires in order to investigate the students' understanding of AIS course at the beginning and at the end of lectures. At the first class students completed a questionnaire about their expectations from AIS lectures (content, their engagement, learning activities, learning outcomes, assessment) and at the last class they completed another questionnaire about their real experiences related to AIS lectures. Research has been conducted for last two years and it enabled authors to use its results to tailor lectures in accordance with student's expectation and accordingly to improve teaching process. DOI: 10.5901/jesr.2015.v5n1s1p147

The purpose of this study is to carry out a comprehensive and robust analysis of the determinants of the capital structure of the Federation Bosnia and Herzegovina (FBiH) companies at the industry level. A large number of hypotheses of different classes of theories are tested. Estimating the dynamic panel models using the system of generalized method of moments (GMM) estimator, we captured both cross-sectional and inter-temporal relationships between the leverage in companies and its determinants. The results show that profitability, collateral value of the assets and the risk, measured by earnings volatility, negatively affect company's leverage, while inconsistent results were for the relationship between different proxies for firm's future growth opportunities and leverage, whereby the firm size overall has no relationship with the firm' s leverage. The findings reflect the transitional nature of the FBiH corporate environment.They suggest that some of the insights from modern finance theory of capital structure are applicable in the FBiH in that certain firm-specific factors that are relevant for explaining capital structure in developed economies are also relevant in the FBiH. Overall, the empirical evidence presented in this Study finds it difficult to demonstrate the validity of the trade-off and the pecking order theories as stand-alone models. The Study’s results also point at several unique aspects of financing behavior in developing countries, from which specific implications for further research follow. DOI: 10.5901/mjss.2015.v6n2s5p188

AbstractThe primary objective in the study is determination of efficacy of probiotic preparation as a supportive therapy in eradication of Helicobacter pylori.The study was multicenter, prospective, randomized, placebo controlled, and double-blind. The subjects first filled out a specially designed questionnaire to assess the severity of the 10 symptoms, which can be related to eradication therapy to be monitored during the trial. Each subject then received 28 capsules of probiotic preparation or matching placebo capsules, which they were supposed to take over the following 14 days, twice a day, at least 2 hours prior to or after the antibiotic therapy administration.A total of 804 patients were enrolled in the trial, of which 650 (80.85%) were included in the analysis. The results show a significantly larger share of cured subjects in the probiotic arm versus the placebo arm (87.38% vs 72.55%; P < 0.001). Additionally, presence and intensity of epigastric pain, bloating, flatulence, taste disturbance, loss of appetite, nausea, vomiting, heartburn, rash, and diarrhea were monitored over the study period. At 15 days postinclusion, probiotic treatment was found superior to placebo in 7 of 10 mentioned symptoms. Average intensity for symptoms potentially related to antibiotic therapy was significantly higher in the placebo group, 0.76 vs 0.55 (P < 0.001).Adding probiotics to the standard triple therapy for H pylori eradication significantly contributes to treatment efficacy and distinctly decreases the adverse effects of therapy and the symptoms of the underlying disease.