CONFLICT OF INTEREST: NONE DECLARED Introduction The collection of platelets by apheresis is considered as a very great progress in transfusion medicine. A larger yield (total number of collected platelets) is obtained if the donor has a greater number of initial platelets and if the separation is done in a shorter time. One of the parameters is also the efficiency of the platelet collection (expressed in percentage) on the value of which different factors may have direct or indirect influence. Aims To calculate the efficiency of platelet collection with the separator Fenval Baxter AMICUS and to compare the efficiency of platelet collection with this separator in relation to the initial value of donor hematocrit. Donors and Methods The donors who participated in this study were divided into groups according to the value of the donor’s ‘hematocrit before separation. Group C consisted of donors whose initial value of the hematocrit was lower or equal to 46%. Group D consisted of donors whose initial value of the hematocrit was higher than 46%. The process was carried out on Fenval Baxter AMICUS. The expected efficiency of the collection was obtained by dividing the total number of collected cells by the expected total number of processed cells, i.e. the total number of cells passed through the equipment. Results In the 258 separations which satisfied the fixed criteria were men in 226 cases (87.6%) and women in 32 (12.4%). There is a statically significant difference in the platelet value between the groups and this value is higher in group D than in group C. The average value of platelets before separation was 46.66. The range of minimal and maximal value is from 38.8 to 52.4 ±2.78. The initial value of hematocrits of the donor does not intervene in the length of the separation, but it has a significant effect on the efficiency of the platelet collection. Increases in the number of hematocrits significantly decrease the efficiency of platelet collection. In practice it means that we can base on this fact make a better selection of donors. In this kind selection, one should prefer a donor with a higher number of initial platelets and lower levels of hematocrits. In that way we can collect a more important yield, have a shorter length of separation and increase the efficiency of platelet collection. Its advantage is as well medical because of a more important yield but also financial because of the decrease of the length of the separation and the increase in efficiency. Key words: value of hematocrits, donors, apheresis, platelets, efficiency.

As the fact that today is conducted a number of scientific research works in the field of medicine, it is necessary to define the steps by which it is carried out to make it universal and to have scientific value. This paper describes the research methods, study design, the way in which one should be written, and why it is important to publicize the same. Special emphasis is placed on scientometrics as the science that evaluates scientific papers and their citation in the selected sample of journals. The paper also answers why scientific research works should be carried out and what kind of satisfaction they provide to the researcher.

CONFLICT OF INTEREST: NONE DECLARED Introduction The quality of the teaching-learning process at the universities in Bosnia and Herzegovina and abroad depends mainly of infrastructure that includes an optimal teaching space, personnel and equipment, in accordance with existing standards and norms. For the assessment of teaching at the faculties, the opinion of students is very important (4, 5). Students are often unhappy with the educational process. Goal To compare the results of the teaching process evaluation between students studying according to the Bologna system and the old system of education. Material and methods We used the questionnaire as a carrier of data created with variables relevant for assessing the success of the educational process at the Medical Faculty in Sarajevo. The survey was conducted among students of the sixth year of the Medical Faculty in Sarajevo. There were 103 students surveyed, of which 32 were studying according to the Bologna and 71 by the old concept of studies. Results and discussion Results of survey which measured students satisfaction with the educational process (theoretical and practical instruction, interactive learning, testing, use of IT and technical aids in teaching, availability of instructional literature etc.) lead us to the conclusion that the lowest satisfaction is associated with factors depending on financial resources, specifically related to library funds and the degree of computerization of educational process, and also with the level of teachers capability to convey knowledge to students with the application of modern medical information technology and technical teaching aids.

The aim of this study was analyze and compare the balance in children and teenagers with and without asthma. Twenty-four subjects aging between 7 and 14 years old took part in this study divided into two groups: asthmatic group and control group. To evaluate the balance one force plate was used. Opened and closed eyes conditions were evaluated in three trials of 30 seconds each. The results showed significant differences between groups in opened eyes condition, with higher amplitude of displacement in the anterior-posterior direction (COPap) (p = 0,04), and medio-lateral direction (COPml) (p = 0, 02) in the asthmatic group. Whereas in closed eyes condition the difference was significant only in the amplitude of displacement in the anterior-posterior direction (COPap) (p= 0,02) and Ellipse Area higher (p = 0,03) in the asthmatic group. Therefore, asthma with its limitations and consequences seems to have a negative effect on postural balance of their patients when compared with normal children of similar age.

U posljednje vrijeme sve se vise pažnje posvecuje ukljucivanju emocionalnih znanja u analizu procesa razmisljanja pri donosenju ekonomskih poslovnih odluka. Cilj ovog rada je da uz pomoc dostupne literature iz razlicitih naucnih disciplina, koje tretiraju razlicite aspekte uticaja emocija na odlucivanje pokusa pronaci novi kvalitet, odnosno novo znanje u navedenoj oblasti, koje ce pomoci akterima da efikasnije i efektivnije donose odluke. U radu smo koristili komparativna metodu, da bi smo upoređivali slicnosti i razlike te prednosti i nedostatke ranijih modela odlucivanja, koje nisu ukljucivale emocionalne komponente sa novim modelom koji ukljucuje navedene komponente.