Discussed are geological characteristics of coal layers, their qualitative-quantitative characteristics, spatial potential of deposit and classification of coal layers. Considering the raw material potential and the possibility of expanding the existing raw material base, the Bugojno coal basin has particular importance for the long-term development of lignite exploitation and its use for thermal energy purposes.

ABSTRACT With globalization, growing popularization and changes in dietary habits where more processed food is consumed, a generation of food wastes and by-products has increased. Under-exploitation of by-products and waste leads to finance losses and environmental pollution although most of the waste are a rich source of bioactive compounds. Using spray drying process, extracted bioactive compounds from food wastes and by-products can be transferred into powder form, and returned to the food chain. Spray drying technique showed to be the most convenient, energy efficient and time-saving process, where a liquid is directly transformed into stable powder, which can be stored for a prolonged time or easily incorporated into other products. This review article focuses on the application of processing parameters of spray drying with specific emphasis on the production of dry extracts of food waste and their influence on powder properties. Research gaps and challenges along with possible applications are also discussed.

Magmatic rocks of post-Late Eocene magmatic formation are widespread in the Sava segment of SavaVardar suture zone and adjoin areas. The rocks formed as a response to transpressional-transtensional tectonic activity preceded by the Cretaceous-Eocene compression of the Internal Dinarides and Tisia Unit as fragments of Eurasian continental lithosphere. Central Bosnia Tertiary volcanic rocks (CBTVR), erupted as dacites in Lower Oligocene, are peculiar rocks of this formation either by their location (southernmost distal outcrops) or geological setting (extrusive within the melange of the Internal Dinaride Ophiolite Belt). Major element composition of the CBTVR reveals high-K calc-alkaline geochemical affinity whereas trace element discriminate the rocks as shoshonitic. The rocks are LILE-enriched and show negative TaNb, P and Ti anomalies, and positive Pb anomalies typical of subduction related volcanic rocks. Chondrite-normalized REE patterns exhibit significant LREE/HREE enrichment [(La/Yb)cn = 21.4 33.4]. Geochemical affinity of the CBTVR combined with tectonic position of extrusions suggests derivation of the melts from the subcontinental mantle which had inherited strong orogenic signature during an ancient subduction.

The aim of this paper is to analyse the morphometric characteristics, length-weight relationship and condition factor of pumpkinseed sunfish (Lepomis gibbosus) from three reservoirs (Modrac, Vidara and Sniježnica) from the area of north-eastern Bosnia and Herzegovina (BiH). The total sample was 61 individuals. The following morphometric parameters were measured: total length, standard length, forked length, head length, mouth width, mouth height, first gill arch length, intestine length and body mass. Length-weight relationship was described by the equation: W=a TLb. Fulton’s condition factor (K) was determined using the equation: K=100 (W/L3). Statistical analysis was performed using the ANOVA to determine differences in morphometric characteristics of individuals between the sites (populations). L. gibbosus from all three populations showed positive allometric growth, and the highest value of condition factor was fish from the reservoir Vidara. In accordance with this result, most of the morphometric characteristics of individuals from the reservoir Vidara were significantly higher compared to individuals from Modrac and Sniježnica reservoirs. This result leads to the conclusion that the L. gibbosus adapted best in Vidara reservoir.

In the central nervous system of primates, several pathways are characterized by different spectra of axon diameters. In vivo methods, based on diffusion-weighted magnetic resonance imaging, can provide axon diameter index estimates non-invasively. However, such methods report voxel-wise estimates, which vary from voxel-to-voxel for the same white matter bundle due to partial volume contributions from other pathways having different microstructure properties. Here, we propose a novel microstructure-informed tractography approach, COMMITAxSize, to resolve axon diameter index estimates at the streamline level, thus making the estimates invariant along trajectories. Compared to previously proposed voxel-wise methods, our formulation allows the estimation of a distinct axon diameter index value for each streamline, directly, furnishing a complementary measure to the existing calculation of the mean value along the bundle. We demonstrate the favourable performance of our approach comparing our estimates with existing histologically-derived measurements performed in the corpus callosum and the posterior limb of the internal capsule. Overall, our method provides a more robust estimation of the axon diameter index of pathways by jointly estimating the microstructure properties of the tissue and the macroscopic organisation of the white matter connectivity.

Clinic for Gynaecology and Obstetrics, University Clinical Centre Tuzla, 75000 Tuzla, Bosnia and Herzegovina School of Medicine, University of Tuzla, 75000 Tuzla, Bosnia and Herzegovina Department of Gynaecology and Obstetrics, General Hospital Tešanj, 74260 Tešanj, Bosnia and Herzegovina Gynecology Centre "Dr Mahira Jahic" Tuzla, 75000 Tuzla, Bosnia and Herzegovina University Department of Gynecology and Obstetrics, Clinical Hospital, "Sveti Duh", 10000 Zagreb, Croatia School of Medicine, Croatian Catholic University Zagreb, 10000 Zagreb, Croatia

Two-wave with diffuse power (TWDP) is one of the most promising models for the description of small-scale fading effects in 5G networks, which employs mmWave band, and in wireless sensor networks deployed in different cavity environments. However, its current statistical characterization has several fundamental issues. Primarily, conventional TWDP parameterization is not in accordance with the model’s underlying physical mechanisms. In addition, available TWDP expressions for PDF, CDF, and MGF are given either in integral or approximate forms, or as mathematically untractable closed-form expressions. Consequently, the existing TWDP statistical characterization does not allow accurate evaluation of system performance in all fading conditions for most modulation and diversity techniques. In this regard, physically justified TWDP parameterization is proposed and used for further calculations. Additionally, exact infinite-series PDF and CDF are introduced. Based on these expressions, the exact MGF of the SNR is derived in a form suitable for mathematical manipulations. The applicability of the proposed MGF for derivation of the exact average symbol error probability (ASEP) is demonstrated with the example of M-ary PSK modulation. The derived M-ary PSK ASEP expression is further simplified for large SNR values in order to obtain a closed-form asymptotic ASEP, which is shown to be applicable for SNR > 20 dB. All proposed expressions are verified by Monte Carlo simulation in a variety of TWDP fading conditions.

The purpose of this study was to explore the effectiveness of the conventional high school instruction about conservation of mechanical energy in Canton Sarajevo. To that end we tested 441 high school students from six different schools in Sarajevo (Bosnia and Herzegovina) for their competence to apply the law of conservation of mechanical energy. Concretely, students were expected to solve 5 open-ended tasks that covered conceptually different situations. In each task we asked a set of sub-questions to check whether the students possess all the prerequisite sub-competencies for systematic reasoning about conservation of mechanical energy. In addition, we investigated how students’ ideas about conservation of mechanical energy were affected by the choice of the physical system, as well as by the choice of the observed time interval. Data analysis was performed on the level of individual tasks. The students’ written answers were analyzed and the frequencies of most prominent student responses were reported. Generally, it has been shown that most high school students from Sarajevo fail to identify and distinguish internal, external, conservative and non-conservative forces. Also, many students think that applicability of the conservation law does not depend on the chosen physical system and its evolution over time. We could conclude that high school students’ use of the conservation law is mostly based on remembering similar problem solving experiences, rather than on relevant strategic knowledge.

The paper investigates how financially insecure public companies in the Republic of Srpska are using the Altman EM score model and the RAPO model developed on business entities in the Republic of Srpska. Public companies are classified as low, medium and high risk companies in terms of the probability of going bankrupt. The results show that in the observed period from 2013 to 2018, half of public companies are constantly in the problem zone, while about 40% are in the safe zone. That is, companies that have been identified as problematic have been in that group for many years, while those with low business risk have been consistently successful. The paper also presents the state's participation in the capital of public companies, as well as expenditures in the form of subsidies and recapitalizations that are allocated from the budget every year.

Introduction: Cervical pain syndrome (CPS), or pain in the neck, is defined as a set of symptoms that limit performing movements in the upper part of the back and last more than 1 day. When the mentioned symptoms last for more than 12 weeks, we talk about chronic CPS. It often represents the condition that results from disability. It is associated with poor posture, work in sitting position, stress, and long-lasting and repetitive movements. The aim of the study was to examine the effect of physical therapy on the degree of disability, pain intensity, and daily life and work activities of persons with chronic CPS.Methods: The research was conducted in the health spa center “Reumal” Fojnica from June 2020 until July 2020. It included 50 subjects of both genders, more than 18 years old, and of all occupations, treated with physiotherapy procedures (transcutaneous electrical nerve stimulation, magnetotherapy, therapeutic ultrasound, and kinesitherapy in the form of McKenzie exercises). In addition, a pre- and post-treatment study analyzed the condition of the respondents at the first examination and the control examination after completion of treatment.Results: By analyzing the results, we established that of the total number of respondents, 74% were female, and the average age was 57.36 years. At the end of the study, the degree of disability caused by neck pain was significantly lower (p < 0.05) than the degree of disability before the therapy. Discomfort caused by symptoms of CPS that occurred and interference with work before the therapy was significantly lower (p < 0.05) after the treatment program. Therapeutic procedures have reduced the pain intensity and improved the activities of everyday life.Conclusion: The treatment with physical therapy procedures effectively reduces the degree of disability and pain intensity and improves people’s daily life and work activities with chronic CPS.

(1) University of Banja Luka, Faculty of Forestry, Department of Forest Economics and Organization, Bulevar vojvode Stepe Stepanovića 175a, BA-78000 Banja Luka, Bosnia and Herzegovina (2) University of Belgrade, Faculty of Forestry, Kneza Višeslava 1, RS-11030 Belgrade, Serbia (3) Master of Forestry, Dr Danice Perović 12, BA-78000 Banja Luka, Bosnia and Herzegovina (4) University of Sarajevo, Faculty of Forestry, Zagrebačka 20, BA-71000 Sarajevo, Bosnia and Herzegovina

Pesticides are chemicals used in agriculture to protect crops from pests. In addition to protection during cultivation, they are also used after harvesting to extend the shelf life of products. Postharvest control stands out, especially when it comes to products imported from distant countries, resulting in increased concentration of pesticides and risk to human health consuming such products. In this study, analyses of pesticide residues were performed on 200 samples of fruits and vegetables. Pesticide residues were identified and quantified in 30 out of 200 samples. Study results revealed imazalil to be the most frequently detected pesticide. Risk assessment was performed on the obtained results, and it was carried out separately for adults and for children under 6 years of age. Imazalil showed the highest ARfD percentage for adults (max% ARfD 251%), and these values were especially high on risk assessment for children, where they amounted up to max% ARfD 1087%. The study of imazalil impact was performed on 16 Swiss albino mice divided into two groups and 4 subgroups. Experimental group animals were treated with the corresponding NOAEL dose of imazalil (10 mg/kg) for 28 days. Body weight was measured before each pesticide application on a digital electronic Sartorius scale. Peripheral blood analysis was performed after 28-day animal exposure to pesticides. Animals were anesthetized, blood samples were obtained by cardiac puncture, and red blood cell (RBC) count, hemoglobin (Hb) concentration, and white blood cell (WBC) count were determined by standard hematological methods. The organs for determination of imazalil concentration were extracted immediately upon animal sacrifice and stored in a freezer at -80°C until analysis. Results show difference in gain weight, and an increase in WBC count was recorded in the experimental group as compared with a control group of animals. The highest imazalil levels were recorded in adipose tissue (45.2‰) which proves tendency to accumulate.