A design concept of phase-separated amorphous nanocomposite thin films is presented that realizes interfacial resistive switching (RS) in hafnium-oxide-based devices. The films are formed by incorporating an average of 7% Ba into hafnium oxide during pulsed laser deposition at temperatures ≤400°C. The added Ba prevents the films from crystallizing and leads to ∼20-nm-thin films consisting of an amorphous HfOx host matrix interspersed with ∼2-nm-wide, ∼5-to-10-nm-pitch Ba-rich amorphous nanocolumns penetrating approximately two-thirds through the films. This restricts the RS to an interfacial Schottky-like energy barrier whose magnitude is tuned by ionic migration under an applied electric field. Resulting devices achieve stable cycle-to-cycle, device-to-device, and sample-to-sample reproducibility with a measured switching endurance of ≥104 cycles for a memory window ≥10 at switching voltages of ±2 V. Each device can be set to multiple intermediate resistance states, which enables synaptic spike-timing–dependent plasticity. The presented concept unlocks additional design variables for RS devices.

Background: Coronary artery disease (CAD) is a major public health issue and a leading cause of death globally. It is one of the most common indications for surgical intervention. There are a lot of different techniques, including CABG, which consists of two approaches: sternotomy and mini-thoracotomy. Different techniques have been developed to improve surgical outcomes, including the use of machine for extracorporal circulation (on-pump) or without it (off-pump). Objective: The objective of this study was to assess whether off-pump CABG offers superior short-term outcomes compared to traditional on-pump CABG in patients undergoing isolated CABG.. Methods: In period between 2022 – 2023, we performed CABG operation in 80 patients. CABG was performed either on- pump or off-pump. Results: The results have shown advantages and disadvantages of one or another type of CABG. We were comparing the duration of surgical procedure, time on mechanical ventilation, drainage volume, neurological incidents, time to discharge, indication for repeat revascularization and mortality between two groups. Conclusion: The choice of surgical technique should be based on individual patient factors, including comorbidities and surgical risks. It is important to say that OPCABG is more challenging than ONCABG, and it is very important that OPCABG is done by skilled, experienced and confident surgeon, which contributes to better outcome and survival.

Background: Cardiosurgical patients can be often anemic, and preoperative anaemia is associated with increased postoperative complications, as well as morbidity and mortality. Objective: The present study was conducted aiming to determine the influence of lower preoperative hematocrit values on the early postoperative recovery of patients undergoing elective off-pump coronary artery bypass grafting (OPCABG). Methods: Our retrospective study included 150 patients who underwent elective OPCABG surgery from September 2021 to December 2022 at the Clinic for Cardiovascular Surgery University of Sarajevo. Patients were divided into two groups, anemic and non-anemic, with anemia defined as hemoglobin level <130g/l males and <120g/l females. Study observed comorbidities and early postoperative data. Results: Overall prevalence of anemia in OPCABG patients was 36,6%, more frequent among older patients. Comorbidities as chronic obstructive pulmonary disease, hypertension, ejection fraction was quite similar in both groups, but body mass index was significantly higher in the group of patients with anemia (29.9% vs 28.4%). In early recovery period, vasopressors were more used in patients with anemia (63.6% vs 42.1%) and their doses were higher. Total drainage was higher in patients with anemia (744.45±45.72 ml vs 681.58±349.06 ml). Number of transfusions was higher in the group of patients with anemia: red blood cells (0.89±1.29 vs 0.29±0.84; p<0,05), fresh frozen plasma (0.65±1.13 vs 0.41±1.15; p<0,05) and platelets (0.11±0.57 vs 0,07±0.42; p>0,05). Duration of mechanical ventilation was longer in patients with anemia compared to non-anemic patients (623-91±259.83 minutes vs 469±191.13 minutes). Atrial fibrillation occurred more often in patients with anemia (12.7 vs 7.4%). Length of stay in the intensive care unit was without significant difference. Conclusion: Based on our findings, patients who underwent elective OPCABG with lower than normal hematocrit, needed more blood and blood products, more vasopressor drugs in higher doses, longer mechanical ventilation, all which can prolong the patient’s recovery and increase the cost of treatment.

Balanced simplicial complexes are important objects in combinatorics and commutative algebra. A d -dimensional simplicial complex is balanced if its vertices can be coloured into d +1 colors, so there is no monochromatic edge. In this article, we establish two results concerning balanced simplicial complexes assigned to tilings of m × n board in a plane and a torus by I p -omino tile

Background: The book “An Impossible Decision - the Life Interrupted by Uncertainty”has been published by Avicena Publisher in Sarajevo, Bosnia and Herzegovina in 2023 - ISBN: 978-9958-720-76-5. Objective: The aim of this article is to analize what is the most rational and ethical way to treat people facing life-and-death decisions and how do we exactly communicate these inevitable uncertainties that all of us will sooner or later face? Methods: Author of the book shows real-life relevance to patients often left alone to make these difficult decisions. Using the techniques of medical dramaturgy, this text brilliantly bridges science. Results and Discussion: The author of the book explained and proposed how to educate the public on how medical advances are made and how inferences and evidence are generated and appraised - in the best tradition of evidence-based medicine while highlighting uncertainties and inevitable trade-offs that accompany science, policies, and personal choices in the attempt to arrive at most satisfactory decisions. In addition to the general public, this play’s important audiences are students and faculty in humanities disciplines and medical schools. These students are required to read many dense scientific, philosophical, and technical writings (many of which are referenced/annotated in the footnotes in the play). The play provides an exceptional teaching tool, which includes over 35 theoretical concepts to show how they can be applied to decisions relevant to all of us and what shared decision- making entails. Conclusion: Author’s answer on the question “How to make the life and death medical decisions?” coul’d and shoul’d be: The method of using a playwright and Socrates dialogue format to connect the science of uncertainty with personal humanity decision will be appropriate. It will be important and quiet usefull for phisicians and, also, patients in healthcare practice, as joined decision makers.

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Abstract The main aim of this study is to explore the mediating effect of innovation in the relationship between human resource management (HRM) practices and organizational performance. HRM practices are observed through selective hiring, training, participative decision-making, and rewarding. Innovation is conceptualized over behavioral, product, process, and market innovation. The study relies upon the principles of social exchange theory and resource-based theory. Data were collected from 408 managers in an emerging economy context. The proposed conceptual model is evaluated with structural equation modeling using Lisrel 8.8 and SPSS 22. Study findings suggest that innovation influences the relationship between selective hiring, training, and participative decision-making and organizational performance. However, no mediating effect of innovation was found in a relationship between rewarding and organizational business performances. Since human resources and innovation are among the leading sources for building competitive advantage for companies, the study findings contribute to HRM and innovation.

Abstract Banks and banking business are exposed to the influence of numerous risks, of which the importance of credit risk management stands out, because credit risk is the only risk that banks are obliged to measure, record in accounting and report. Banks monitor credit risk through the segmentation of the credit portfolio according to the level of risk. This paper is focused on research related to the management of the riskiest category of the credit portfolio, for which we will use the term special credit risk (SCR) in this paper.

Physical activity is important for the physical and mental health of almost everyone. Nordic walking is a physical activity in which participants use specially designed poles while walking, while the term jogging implies light running at speeds less than 10 km/h. PURPOSE: The aim of this research is to monitor the load intensity in real conditions, using a heart rate monitor Team Polar System, during nordic walking and jogging and comparing possible differences in heart rate responses after the fifth minute of activity, at an average speed of 7.5km/h. METHODS: The assessment of heart rate responses for this research was conducted on the 30 male students, at 2 separate days. RESULTS: The results of the variables used in this study show statistically significant differences at the level of significance p=.000. From the mean value results (M) it is obvious that the respondents achieved higher results of heart rate responses during nordic walking compared to the identical tests applied during jogging. CONCLUSION: The results of this study indicate that both Nordic walking and jogging are beneficial but Nordic walking contributes more in achieving higher body loads resulting in increased oxygen consumption and thus calories Key words: load intensity, heart rate, nordic walking, jogging

Abstract This study classifies local self-government units (local communities) in the Federation of Bosnia and Herzegovina (FBIH) according to socio-economic characteristics by applying the following multivariate methods: principal component analysis (PCA), regression and cluster analysis. The selection of variables was based on literature and adjusted by FBIH specifics, covering the four hypothetical dimensions of regional differentiation: macroeconomic, demographic, infrastructural and socio-cultural indicators. PCA has identified five components: the productivity component, demographic component, component of economic activity potential, spatial component and employment component. Further analysis showed that all identified factors are significant predictors of local communities’ development, measured by the development index. The cluster analysis resulted with four clusters in the FBIH with significant differences in development level. Considering that FBIH municipalities are administrative units of local government and that the classification is based on socio-economic dimensions, identified clusters correspond to the NUTS principles.

Abstract Introduction. COVID-19 pandemic increased consumption of alcohol (including harmful drinking – HD), and decreased physical activity levels (PAL) globally, but there is an evident lack of studies examining the problem in the post-pandemic period. This study aimed to evaluate gender-specific associations between sport participation and PAL (independent variables), and HD (dependent variable) among college/university students during the first post-pandemic year of the COVID-19 pandemic. Material and Methods. The participants were college/university students, aged 18 to 21 years (n = 788; 409 females) from Croatia and Bosnia and Herzegovina. They were tested on socio-demographic factors, HD (using the AUDIT scale), sport participation and PAL (using the IPAQ questionnaire). Analysis of variance, Chi square test, and t-test for independent samples were used to evaluate differences, while logistic regression with dichotomized criterion (HD vs. non-harmful drinking – NHD) was calculated to establish associations between independent and dependent variables. Results. T-test indicated significant differences between HD and NHD in PAL (t-test = 2.16, p = 0.02), but only in males. Also, logistic regression indicated a significant correlation between PAL and HD in males (OR: 1.41, 95%CI: 1.11-1.76), while no association was evidenced: (i) between sport participation and HD (in both males and females), and (ii) between PAL and HD (in females). Conclusions. Results indicated that an overall increase in PAL could be helpful in decreasing HD among college/university students; however, to evaluate it more specifically, prospective analyses are needed.

The primary goal of this research was to determine the differences in kinematic parameters between the first and second serves in tennis among the elite players of the German league. The sample of respondents in this research consisted of 30 elite male senior players of the German League who have "Leistungklasse" from 1 to 7. The kinematic parameters that were analyzed are: Height of ball impact (KPVUL), Racket speed (KPBRE), Ball speed (KPBLO), The angle at the elbow joint of the arm that hits the ball (KPULZ), Oscillation of the vertical projection of the center of gravity of the body (KPOVP), Jump height (KPVSK), Ball launch height (KPVIL), The point of contact between the ball and the racket "sweetspot" (KPMLR), Ball rotation "Top spin" (KPRLO). The video recording required for kinematic analysis was acquired with two Casio EX-F1 digital cameras at a frequency of 200 images per second. The camera was placed at an angle of 900 in relation to the recording plane, and they were at a distance of 10 m. Space calibration was performed with the help of a calibration frame (200 x 200 cm). We have installed Zepp Tennis Smart Sensor 2.0 in the handle of the Wilson Pro Staff RF97 Autograph racket, using the Zepp Tennis application software. "Kinovea" software was used for service analysis and obtaining kinematic parameters from video recordings. By analyzing the results of the T-test for independent samples, it can be seen that there are statistically significant differences in five of the nine analyzed kinematic parameters : KPBRE – kinematic parameter of racket speed (Sig.=.000), KPBLO – kinematic parameter of ball speed (Sig.=.000), KPULZ – kinematic parameter angle in the elbow joint (Sig.=.000), KPMLR – kinematic parameter point of contact between the ball and the racket (Sig.=.000), as well as a variable KPRLO – kinematic parameter of ball rotation (Sig.=.000). Larger numeric values in variables: KPVUL – kinematic parameter ball impact height, KPOVP – kinematic parameter of oscillation of the vertical projection of the center of gravity of the body, KPVSK – kinematic parameter jump height and KPVIL – kinematic parameter ball impact height, show a difference but it is not enough to be statistically different. Key words: tennis, kinematic analysis, racket speed, Zepp sensor