SAŽETAK: Uvod: Alergija na hranu je u zadnjih 20 godina postala značajan zdravstveni problem. Prevalencija se kreće od 3-38% samoprijavljenih slučajeva, odnosno od 1-7% dijagnosticiranih slučajeva alergije. Zadnjih godina su poduzeti brojni projekti kako bi se odredila prevalencija, vrsta alergena, uzroci alergija, veza sa ostalim zdravstvenim problemima, načini dijagnosticiranja, provođenje kontrole rizika u prehrambenoj industriji, prilagođavanje zakonske regulative potrebama alergičnih osoba itd. Dok su neke države uradile mnogo po ovom pitanju, još uvijek je veliki broj onih koji nemaju podataka o alergijama na hranu na svom području, a takva je situacija i u BiH. Cilj rada: Utvrditi prevalenciju alergija na hranu iz anketnog ispitivanja u Kantonu Sarajevo. Utvrditi kakva je učestalost nekih drugih alergija kod ispitanika. Materijal i metod rada: Ovo presječno istraživanje o alergiji na hranu provedeno je tokom marta i aprila 2017. među stanovnicima Kantona Sarajevo oba spola i svih dobnih skupina metodom slučajnog uzorka. Posebno dizajniran anketni upitnik od 16 pitanja popunilo je 480 ispitanika. Istraživanje je provedeno retrospektivno. Rezultati: Rezultati ankete provedene na području Kantona Sarajevo pokazuju procenat od 51% osoba koje prijavljuju da imaju neku vrstu alergije, među njima je 20% prijavljenih alergija na hranu, odnosno 11,7 % slučajeva dijagnosticiranih alergija na hranu, a u odnosu na ukupan broj od 480 (100%) ispitanika koji su učestvovali u anketi. Najčešće prijavljeni alergeni su: mlijeko i mliječni proizvodi, žitarice, jaja, kikiriki, orašasti plodovi, riba (sa školjkama i rakovima) i jaja. Zaključak: Dobiveni rezultat prevalencije alergije na hranu u našem istraživanju u ukupnom ispitanom uzorku od 480 anketiranih, njih je 96 (20%) ispitanika što ukazuje da je problem alergija na području Kantona Sarajevo značajan, i da se učestalost kreće u vrijednostima koje su karakteristične i za druge regije Evrope i svijeta. Zakonska regulativa se redovno usklađuje sa pravnom tekovinom Evropske unije, ali postoji nedostatak lako dostupnih informacija, koje bi alergičnim osobama olakšale proces dijagnosticiranja, preveniranja kontakta sa alergenima i snalaženje u svakodnevnom životu. Ključne riječi: alergija na hranuprevalencija; alergeni u hrani; Kanton Sarajevo

In general, the mixing the reactants is very important to the process and the rate of combustion of each fuel, especially low-ranked coals with low reactivity. The appropriate excess air coefficient for combustion and the position and mode of supply of individual portions (air sta- ging) of the total air in the furnace are one of the key influ- encing factors for the mixing, respectively the efficiency of the combustion process, and the level of emissions. Today, the air staging (primary, secondary, tertiary and over fire air-OFA) is an indispensable process in the design of new industrial and energy boilers. Also, this measures are used for the reconstru- ction of existing furnace of large boilers. The implementation of this primary measure in the furnace does not require signi- ficant financial resources - the costs of investing in the intro- duction of air staging supply for combustion in the furnace are very low in relation to the multiple positive effects and bene- fits of such a system, especially a lower NOx emissions. However, the first condition for the correct and reliable design of the air staging system in the furnace is the choice of the optimal position for the supply OFA air. Determination of this position on the furnace depends on several factors, primarily the type and characteristics of the fuel, grinding quality, co- mbustion technology, furnace structure, type, number and arra- ngement of burners. On this topic, the Faculty of Mechanical Engineering of the University of Sarajevo, in the Laboratory for Coal and Biomass Combustion, conducted extensive rese- arch on the pulverized combustion of coal blends of the Ce- ntral Bosnia Mining Basin, including co-firing of these coals with waste wood biomass (beech and spruce sawdust). Here is presented some of the results of those NOx emission studies for different fuels and combustion temperatures, depending on the mode of supply and the positions of the combustion air supply in the boiler furnace.

The aim of this paper is to highlight the role and level of vitamin D in chronic diseases at the primary level

This article presents the third part of data on selected new and noteworthy taxa ensuing from the revision of Herbarium collection of the Institute for Nature Conservation of the Vojvodina province (PZZP). Selected taxa include 11 species, three subspecies, three varieties, one infraspecific taxon with indetermined status [stat. indet.] and one nothospecies placed within seven genera (Filago L., Ludwigia L., Luzula DC., Lycopus L., Lythrum L., Phlomis L. and Silene L.). Two varieties (Luzula campestris subsp. campestris var. elata, Silene flos-cuculi subsp. floscuculi var. latifolia) and one infraspecific taxon with indetermined status (Luzula multiflora subsp. multiflora [stat. indet.] b. uliginosa) are new for a flora of Serbia. Additionally, one species (Ludwigia palustris) and one nothospecies (Lythrum ×scabrum) are confirmed for Serbia.

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: the diatom alga Eunotia boreoalpina; the saprotrophic fungus Clitocybe truncicola; the liverwort Haplomitrium hookeri; the moss Leptodon smithii: the monocots Epipactis purpurata, Stipa tirsa, Typha laxmannii and T. shuttleworthii; and the dicots Krascheninnikovia ceratoides, Polygonum albanicum and Sorbus latifolia.

Leaf and shoot characteristics of the following four European barberry taxa from the Balkan Peninsula and Sicily were investigated in the present study: Berberis croatica, B. vulgaris, B. aetnensis and B. cretica. Analyses were based on 10 populations of B. croatica, five of B. vulgaris and two populations of both B. aetnensis and B. cretica. Populations were randomly selected within the natural distribution area of these species. Eight leaf traits, three shoot traits and the blade length/width ratio were analysed. Multivariate analysis (principal component analysis, canonical discriminant analysis and cluster analysis) distinguished B. cretica and B. aetnensis populations and, to a lesser extent, the populations of B. croatica and B. vulgaris. ANOVA showed that the analysed populations of both B. aetnensis and B. cretica were homogeneous within the species. All populations of both B. croatica and B. vulgaris showed different degrees of intraspecies variability. Lack of complete separation, the observed grouping of populations and high intraspecies variability in B. vulgaris and B. croatica may reflect the fact that the sampled B vulgaris and B.croatica populations were located at environmentally variable sites (unlike B. aetnensis and B. cretica), resulting in high phenotypic plasticity in those populations. Even though the observed patterns of morphological variation support the idea of four barberry taxa on the Balkan Peninsula and in Sicily, because of suspected adaptive phenotypic plasticity of the analysed Berberis taxa, the true taxonomic status of these taxa needs to be additionally confirmed by molecular methods.

Background/Aim: The World Health Organization (WHO) declared the spread of a novel disease COVID-19 as a pandemic on 11 March 2020. As of 12 June, there have been more than 7.4 million COVID-19 cases and more than 418,000 COVID-19 deaths globally. This paper represents epidemiological analysis of the first 100 days of COVID-19 epidemic in the Republic of Srpska. Methods: Data of all COVID-19 cases confirmed in the Republic of Srpska between 4 March and 12 June were collected from epidemiological and laboratory testing reports obtained from the Public Health Institute of the Republic of Srpska. This cross-sectional analysis was carried out on a sample of 1,607 laboratory-confirmed COVID-19 cases, which included: summary of patient characteristics, examination of age distributions and sex ratios, calculation of case fatality and mortality rates, incidence rates analysis, epidemiological curve construction and subgroup analysis. Results: Over 100 days after the first case was confirmed, the total number of infected patients in the Republic of Srpska rose to 1,607 (31,471 persons had been tested). As of 12 June, 69.9 % of those cases has recovered. During that period there were 117 confirmed deaths (average age 72 years; 60.7 % males; 86 % older than 60 years; 94 % with at least one comorbidity). The sex ratio among the confirmed cases was 0.95:1 (48.7 % men vs 51.3 % women). Infections were less common in persons below 20 years of age (7.3 % of all confirmed cases) and the majority of the affected persons were in the group 40-69 years of age. As much as 86 % of all death cases occurred in persons older than 60 years (average age 72 years) and 94 % of all death cases had at least one underlying condition (mostly cardiovascular diseases, 79.5 %). Conclusion: Evaluating the clinical data of COVID-19 patients, finding the source of infection and studying the behavior of the disease is crucial for understanding of the pandemic.