Clean, fresh air is the most important requirement for good indoor air quality (IAQ) in all buildings, but it is especially important with regard to the environments within hospitals and other healthcare facilities. The literature indicates that buildings with heating, ventilating and air conditioning (HVAC) systems may have an increased risk of sick building syndrome (SBS) and building-related illness (BRI) if they are not well maintained. Microorganisms are brought into hospitals by people, air currents, water, construction materials and equipment. The main objective of this study was to assess the degree of fungal and bacterial contamination in the University Clinical Centre in Banja Luka, which is directly connected to the HVAC system. Airborne bacteria and fungi in the indoor hospital environment were assessed experimentally. Air samples were collected during the winter season. This paper presents the results related to the concentration of microorganisms expressed in colony forming units per cubic metre of air sampled (in CFU/m) together with the microclimatic parameters temperature and relative humidity. The results of monitoring indicate the effectiveness of HVAC systems in reducing microbiological contamination.

The aim of this review paper is to determine the significance of game interruptions for scoring a goal during a football match by providing a detailed analysis of the relevant literature. The collection of compiled research articles covered the period between 2000 and 2018. The following electronic databases were used to search the relevant literature: PubMed, MEDLINE, Google Scholar, EBSCO, all referring to the period from 2000 to 2018. The search included both male and female players of different age categories. Scientific papers that were excluded from this analysis are the ones written in another language, those presenting results from the training sessions, but not from the competition matches, and the papers which did not analyze game interruptions. The results show statistically significant correlation between game interruptions and scoring a goal. The most goals were scored from free kicks, followed by corner kicks. About 30% of the goals from different competitions and games were achieved after a set play. The factors that have the highest effect on scoring goals after a set play are the number of players in the wall, a distance from the goal and the number of players in the field between the goalkeeper and the position of the free kick. The data showed little or no differences, expressed in percentages, in terms of correlation between male and female players, including both senior and junior categories. Game interruptions have a significant impact on scoring a goal. They are part of the standard game situation and as such they require special attention during analysis.

: Technological development and ICT have been recognized as one of the main factors of changes in business and enterprise management. The impact of ICT in tourism has been recognised as one of the main drivers changes in the past several years. This chapters seeks to provide insight into influence of ICT on tourism and impact of ICT utilization on operations in hotels. The chapter is based on research which has been conducted among hotels and hotel managers in Bosnia and Herzegovina aiming to determine the level of ICT utilization and its impact on hotel operations and performance. The results indicate that ICT has contributed to changes in behaviour of guests as well as operations in hotels and their business performance.

Multiple sclerosis is a chronic demyelinating disease of the central nervous system, that causes permanent disabilities. Diagnostics of this disease by magnetic resonance requires the appliance of corresponding protocols with the sequences that emphasize demyelinating plaques. Standard sequences T1 and T2 sometimes cannot clearly show demyelinating plaques, and it is necessary to work on perfecting the sequences that emphasize the changes in the brain formed as demyelinating plaques. The aim of the survey: The aim of the survey was to estimate the value of MR sequence with double inversion recovery (DIR) in discovering demyelinating lesions of the brain in multiple sclerosis (MS). Patients and methods of the survey: 22 patients were included in the survey, they were of both genders and different age. The patients were with diagnosed with multiple sclerosis. The patients underwent the scanning on MR apparatus 1.5 T. Comparison of DIR sequence to FLAIR and T2 W sequences were done. Result: DIR sequence proved significantly more MS lesions compared to T2W or FLAIR sequence, including intracortical, juxtacortical and paraventricular zone of the brain. In the infratentorial zone of brain, T2W sequence proved significantly more plaques compared to DIR and FLAIR. Conclusion: DIR sequence compared to T2W and FLAIR sequences discovered more demyelinating lesions in targeted regions that were examined. DIR sequence is a tool that contributes to easier and faster diagnostics of multiple sclerosis, needs to be included into the routine MR protocol of patients with MS, in order to discover more easily intracortical and juxtacortical MS lesions of the brain.

Introduction: This study aims to explore clinical values and possibilities of heart artifact elimination for patients who underwent SPECT myocardial perfusion scintigraphy. The main focus is on nuclear medicine technologists and their knowlodge of the new technologies developed in nuclear cardiology. Methods: A qualitative descriptive study, review article has been performed for this research. Pubmed, Web of Science, and Embase were searched using a predefined electronic search strategy. Eighteen studies were deemed eligible for this systematic review. Results: Based on the literature we found average age for the patients with coronary artery disease is 59.69 years for women and 57.39 yeras for men. False positive findings, blurred images, respiratory artifacts and sinogram and linogram interruption is very often, especially with patients with irregular breathing cycles, fear of the reasults, anxiety and patients with high BMI. Many studies performed on phantoms or on patients suggest image artifacts can be reduced or even eliminated with the new scanning methodology, software application upgrade, and with right nuclear medicine technologist education. Conclusion: Coronary artery disease can affect men and women equally so the best diagnostic modality is essential for adequate treatment. Interruption of sinogram or linogram, truncation of the heart and blurred image is the first sign artifact of the image. Essential and the first step of every cardiac proccesing software is sinogram and linogram inspection combined with motion correction evaluation of the raw images. New technologies can improve image quality which can increase sensitivity and specificy of myocardial perfusion scintigraphy in all patients.