Cilj: Prikazati najčešće razloge odbijanja potencijalnih darivatelja krvi po spolu i usporediti ih između gradova Osijeka i Zagreba. Ispitanici i metode: Istraživanje je provedeno po principu retrospektivne studije tijekom 2021. godine iz baze podataka Hrvatskog zavoda za transfuzijsku medicinu u Zagrebu i Kliničkom zavodu za transfuzijsku medicinu u Osijeku. Korišten je χ2-test, dok je statistička analiza napravljena pomoću programskog sustava MedCalc (inačica 14.12.0, MedCalcSoftware) uz razinu značajnosti od P < 0,05. Rezultati: Hrvatski zavod za transfuzijsku medicinu u Zagrebu kao najčešći razlog odbijanja potencijalnih darivatelja krvi navodi sniženu koncentraciju hemoglobina zbog koje je odbijeno 7 119, od kojih 2 583 (36 %) muškarca i 4 536 (64 %) žena. Također, Klinički zavod za transfuzijsku medicinu u Osijeku odbio je najviše potencijalnih darivatelja krvi zbog snižene koncentracije hemoglobina, njih 660, od kojih 235 (36 %) muškaraca i 425 (64 %) žena. Nakon obrade podataka nema statistički značajne razlike u odbijanju potencijalnih darivatelja krvi zbog hemoglobina u Zagrebu i Osijeku uspoređujući ih po spolu (P = 0,729). Zbog krvnog tlaka odbijenih potencijalnih darivatelja krvi u Zagrebu bilo je 3 855, 2 375 (62 %) muškaraca i 1 480 (38 %) žena. Odbijenih potencijalnih darivatelja krvi zbog krvnog tlaka u Osijeku je bilo 369, 141 (38 %) muškarac i 228 (62 %) žena. Statistički značajna razlika u odbijanju potencijalnih darivatelja krvi zbog krvnog tlaka u gradovima po spolu postoji (P < 0,001). Zaključak: Najčešći razlozi odbijanja dobrovoljnih darivatelja krvi tijekom 2021. godini u Hrvatskom zavodu za transfuzijsku medicinu u Zagrebu i Kliničkom zavodu za transfuzijsku medicinu u Osijeku jesu snižena koncentracija hemoglobina te krvni tlak kod obaju spolova.

During the past decade, there have been significant changes in general communication, in which the Internet as a medium took over primacy of conventional media. Commercialization of the Internet as well as the development of the global economy contributed to the creation of a new concept in business. The integration of a large number of information systems and networks has led to the globalization of business through a computer network. This expanded the concept of a market as such, whereby market transactions can be carried out regardless of where the entities are located and regardless of the time in which the individual actions take place. By using multimedia content, hypertext and real-time interaction with users, the Internet has positioned itself as a superior marketing communication platform, which uses all the good sides of conventional media, but in a better way. This is especially true for export-oriented companies whose in-performance is more determined by adopting global trends in Internet marketing than in locally-oriented businesses. The aim of this paper is to explain the importance of Internet marketing for exporters, along with an analysis of usage of Internet marketing by Bosnian exporters. The paper presents a hypothesis that the biggest exporters in B&H have a higher quality Internet presence than companies that are engaged in export to a lesser extent. The statistical analysis of SEO activities was used in the work, which showed more ratings of the Internet marketing of the leading export companies. Also, the paper used a scientific method of content analysis.Keywords: Internet marketing, export companies, competitivenessJEL: M29, M31, M37, L86

Roundabout intersections promote a continuous flow of traffic. Roundabouts entry move traffic through an intersection more quickly, and with less congestion on approaching roads. With the introduction of smart vehicles and cooperative decision-making, roundabout management shortens the waiting time and leads to a more efficient traffic without breaking the traffic laws and earning penalties. This paper proposes a novel approach of cooperative behavior strategy in conflict situations between the autonomous vehicles in roundabout using game theory. The game theory presents a strategic decision-making technique between independent agents - players. Each individual player tends to achieve best payoff, by analyzing possible actions of other players and their influence on game outcome. The Prisoner's Dilemma game strategy is selected as approach to autonomous vehicle-to-vehicle (V2V) decision making at roundabout test-bed, because the commonly known traffic laws dictate certain rules of vehicle's behavior at roundabout. It is shown that, by integrating non-zero-sum game theory in autonomous vehicle-to-vehicle (V2V) decision making capabilities, the roundabout entry problem can be solved efficiently with shortened waiting times for individual autonomous vehicles.