The paper presents the results of testing the mechanical properties and evaluating the integrity of cylindrical head shells, which were obtained by the welding process and shaped by the cold process of gradual local deformation, i.e. the process of incremental deformation. Cylindrical head shells of pressure vessels are made from one part, but the standards also allow production in a welded version when the dimensions of the floors are larger than the standard dimensions of the sheets for production. Geometric shape and measurement tolerances are defined by a series of recommendations. The required mechanical properties and acceptance criteria for installation in pressure equipment are prescribed by PED 68/2014/EC and the BAS EN 13445 recommendation. The mechanical properties of the welded joint and the deformed material in the torospheric zone of the head shells, such as toughness, hardness and crack toughness, or their values are input parameters for determining the integrity of the floor structure. Using fracture mechanics criteria, detected faults can be categorized and evaluated with regard to the acceptability of the head shells for installation in pressure equipment or continued operation. The aim of the test is to determine the influence of the type of material, thickness and diameter of the head shells on the mechanical properties (ReH, Rm, A5 and KIc) and on the integrity of the cylindrical head shells.

Mine site reclamation is a relevant step in maintaining ecological balance after mining activities. Although mining activities provide many economic benefits, they often have a negative impact on the environment. These environmental problems require effective and sustainable solutions. To minimize the effects of mining, environmental management is obligated to stabilize the land, so it is productive after mine closure and leads to the best possible purpose. Regulatory authority sets out the criteria for reclamation to be accomplished by the mine reclamation program such as compliance, land re-contouring, revegetation, and final completion.

Effective removal of various pollutants from the environment has become one of the most important challenges of modern society. Carbon cryogels doped with nitrogen were synthesized and characterized using FTIR. All investigated materials have similar composition and structural disorder. The application of carbon cryogels doped with nitrogen for adsorption from tap water with the addition of OP pesticides gave successful results in stationary and dynamic conditions. Stationary conditions showed successful removal of aliphatic dimethoate and malathion for all tested materials, but they were less effective for aromatic chlorpyrifos. Under dynamic conditions, all materials effectively removed malathion and chlorpyrifos while showing suboptimal performance for dimethoate adsorption. The demonstrated efficiency indicates the potential application of these materials in water treatment. The toxicity of these pesticide solutions decreases over time, indicating that no more toxic products are formed.

Emotional intelligence is the ability to recognise one's own and other people's emotions and adjust one's behaviour in accordance with them. Numerous studies have shown that emotional intelligence has a positive effect on job satisfaction, employee performance, interpersonal relationships, business communication and productivity. In today's fast-paced and competitive business world, the ability to understand and manage one's own emotions, as well as the emotions of others, becomes crucial for building professional relationships. Emotionally intelligent people cope more easily with acute and chronic stress, which directly affects mental health and work performance. Using emotional intelligence as a tool to reduce stress in the workplace, as well as to resolve conflicts that have cause-and-effect relationships, allows for a better understanding of the needs and feelings of employees. The ability to effectively manage emotions and stressful situations can significantly contribute to employee satisfaction and loyalty, that is crucial to long-term business success.

Background: Evaluated values of body mass index (BMI), waist circumeference (WC) and waist-to-hip ratio (WHR) increase the risk of stroke, but the extent to which this is mediated by hypertension, diabetes, lipid status, smoking and alcohol consumption is not fully understood. Objective: The aim of this research is to examine the influence of modifying and non-modifying factors as well as obesity defined through BMI, WC and WHR on the occurrence of stroke. Methods: A total of 440 subjects were included in the cohort divided in to two groups. The first group were patients with stroke and another without stroke. We investigate modifable factor for stroke (hypertension (HTA), lipid status, diabetes mellitus (DM), smoking, alcohol consumption, educational status) as well as WHR, BMI and WC as determinants for obesitiy. Results: The majority of respondents in both groups had a secondary level of education. Smoking and alcohol consumption were slightly more prevalent in the group without stroke, while HTA and DM were slightly more prevalent in the group with stroke, but without a statistically significant difference. The largest number of respodents without stroke had HDL cholesterol values in the range of optimal >1.5, 70.9%, while 35.5% of respodents with stroke had values in the risk range, as well as 32.3% in the high risk range. LDL cholesterol values were on average statistically significantly higher in the group of respodents with stroke - 3.77±1.29 compared to the values in respodents without stroke - 3.20±1.20. The largest WC had patients with a hemorrhagic stroke 96.4 ± 15.5 cm. The average BMI was slightly higher in the group of patients with embolic stroke (28.5 ± 2.8) compared to patients with hemorrhagic stroke (28.4 ± 5.9) and thrombotic stroke (28.1 ± 4, 2). WHR was almost identical in all three types of stroke. Conclusion: There is correlation between modifable risk factor and obesity in stroke occurence.

Background: Carotid atherosclerosis is often mentioned as one of the main causes of stroke. Currently, embolization is considered the most common mechanism that causes ischemic strokes due to atherosclerotic lesions in the carotid artery. Transcranial Doppler (TCD) ultrasound provides relatively inexpensive, noninvasive, real-time measurement of blood flow characteristics and cerebrovascular hemodynamics within brain arteries. The pulsatile index measured by transcranial Doppler is a parameter that indicates the degree of elasticity of the blood vessels of the brain. Objective: The aim of this study is to determine the relationship between the value of the pulsatile index of the middle cerebral artery and the basilar artery in patients with carotid stenosis using transcranial Doppler and the value of the pulsatile index in relation to the degree of carotid stenosis. Methods: The study involved a total of 140 patients examined at the Color Doppler and Transcranial Doppler Department of the Neurology Department of the General Hospital ”Prim Dr. Abdulah Nakas” Sarajevo The patients were divided into two groups. The research was conducted in the General Hospital “Prim. dr. Abdulah Nakas” in Sarajevo at the Department for Color Doppler and Transcranial Doppler of the Department of Neurology and included patients examined in the period from February 2022 to December 2022. All patients underwent extracranial Doppler of the carotid arteries and transcranial Doppler of the middle cerebral artery and basilar artery. Results: The mean values of PI in ACM in the total sample were statistically significantly lower in patients with stenosis up to 50% compared to the average in patients with stenosis over 50%. Average values of PI in AB in the total sample were statistically significantly lower in patients with stenosis up to 50% compared to the mean values in patients with stenosis over 50%. Conclusion: Transcranial Doppler findings showed an increased pulsatile index in patients who had carotid stenosis greater than 50% compared to patients with mild carotid stenosis. The study showed that in clinical work it would be necessary to introduce the pulsatile index as an indispensable neurosonological parameter that would be included in the findings of the transcranial Doppler and thus objectify the potential risk of a cerebrovascular ischemic event.

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This article addresses a sustainable approach to urban regeneration in post-communist residential neighbour-hoods in Sarajevo. The area explored is located in the municipality of Novo Sarajevo (literally, New Sarajevo), featuring well-known but somewhat controversial apartment buildings built after the Second World War, from the 1950s to the 1970s. At the time, this area epitomized the social and economic progress and expansion of the city from east to west, and it expressed the ideals of socialist modernist urban planning and architecture. More than seventy years later, following social, economic, and cultural transition after the war in the 1990s and new urban developments, this area and the city face multiple challenges, from decay to social bias. One key challenge is to adapt the residential architecture from socialist mod-ernism to meet contemporary requirements of functionality and sustainability. This research proposes the “new urban protocol” as a collaborative model combining tools and procedures for sustainable urban regeneration while focusing on reevaluating, retrofitting, and reprograming the architectural legacy of socialist modernism.

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Background: As a surgical nurse in a healthcare team, it is helpful to position the patient, depending on the nature of the procedure, and to prepare independently both the instrumentation and the site of surgery with drapes prior to the surgical procedure. Objective: To examine the experience of surgical nurses in their work with the WHO surgical checklist in Sweden. Methods: Data were collected from one hundred and ninety-six healthcare professionals, including thirty-nine surgical nurses, using a self-administered questionnaire. The Mantel-Haenszel and Pearson χ2 tests were used for ordered and unordered categorical variables. The qualitative data was presented in the form of the positive and negative contribution of the checklist and the text was analyzed according to Graneheim and Lundman. Results: Surgical nurses (61.6%) answered “no” to the question about being educated and trained in using checklists. Almost the same answer was given when it came to adapting the checklist to the department and the fact that the assistant nurse was responsible for ensuring the checklist was used (61.5%). 89.9% of them did not know who was responsible for implementing the checklist before surgery. According to (56.4%), the checklist was used all the time in emergencies, while (12.8%) of them stated that they did not believe that the checklist improved patient safety. Conclusions: Compliance with the WHO’s checklist varies, and the observed compliance is lower than that documented. The surgical nurses gave the same responses as others in the team. Clearer procedures are needed during surgery, specifying how the checklist should be used in practice, and there should be a designated person who is responsible for implementing the checklist.

Multi-purpose reservoir Modrac is the most important water resource in Tuzla canton( northeastern Bosnia and Herzegovina). Ecologically acceptable flow on dam Modrac is not adjusted with the latest Rulebook about methods of determining ecologically acceptable flow. Modrac reservoir with upstream and downstream flow of Spreca river is categorized as a protected water resource due to its susceptibility to eutrophication and according to current legislation, requires a second level of ecologically acceptable flow assessment. This paper shows the methods used to determine ecologically acceptable flow on the Modrac dam, respecting the fact that reservoir Modrac is declared as protected water resource. The given calculation of ecologically acceptable flow is made for II level of evaluation

This study aims to identify the cybersecurity awareness of university students from Bosnia and Herzegovina, Serbia, and Montenegro in the following aspects: a) Malware, b) Password usage, c) Phishing, d) Social engineering, and e) Online scams. A quantitative-qualitative research approach was used. Data for the quantitative section were collected using the Cyber Security Behaviour Instrument questionnaire (Muniandy et al., 2017). In the qualitative section, five semi-structured interviews were conducted with students about their behaviour and protection on the internet. Research has shown that respondents apply some good, but still also some weak or dangerous cybersecurity practices in above mentioned aspects. That confirms that the human element remains a critical vulnerability for individuals, businesses, and societies facing rapidly evolving online threats, and that we urgently need the improvement of personal cyber hygiene. The findings highlight strengths and weaknesses in respondents’ knowledge and behaviours related to cybersecurity, underscoring the need for continuous education and awareness-raising to improve internet security practices.

In this paper, the results of measurements of indoor radon activity concentration in fourteen elementary schools in Tuzla, Bosnia and Herzegovina, are presented. Measurements were performed with CR-39 solid-state nuclear track detectors. Radon activity concentration in investigated locations was 6.8-143 Bqm-3. To assess the indoor radon hazards for people, the annual effective dose, excess lifetime cancer risk, and the relative risk of lung cancer were estimated.

Background: Degenerative aortic stenosis is a prevalent and severe condition necessitating aortic valve replacement (AVR) when the valve area critically narrows to 0.7 cm² or when symptoms are manifested. Traditional AVR via median sternotomy, poses considerable risks for patients with comorbidities or advanced age. Objective: This study evaluates the efficacy and safety of mini sternotomy aortic valve replacement (MSAVR), a minimally invasive technique designed to reduce surgical trauma, improve postoperative recovery, and lower healthcare costs. Methods: A reversed L-type upper partial sternotomy (RLUPS) approach was performed in five patients focusing on standardized surgical procedures, and rigorous postoperative care. Key findings indicate that MSAVR markedly reduces postoperative complications, ICU stay, and overall hospital stay compared to traditional sternotomy. Results: The median postoperative length of stay was seven days for MSAVR versus 12 days for traditional sternotomy, with ICU stays of 52 hours and 119 hours, respectively. Our study also highlights the cost-effectiveness of MSAVR, with decreased hospital costs per patient due to reduced ICU resource utilization and shorter hospital stays. These findings suggest that MSAVR is a valuable and advantageous alternative to traditional sternotomy, offering substantial benefits in terms of patient outcomes and healthcare efficiency. Conclusion: Our work underscores the potential of minimally invasive techniques in improving the management of severe degenerative aortic stenosis, marking a significant advancement in the field of cardiac surgery.

Background: Non-surgical periodontal therapy, including mechanical debridement and root planning, is the gold standard in the treatment of periodontal diseases. The most commonly used instruments for non-surgical therapy are sonic/ultrasonic devices and manual instruments such as curettes. Objective: This study evaluates the clinical effectiveness and patient experience of non-surgical periodontal therapy using the Vector® Paro Pro ultrasonic device, emphasizing its impact on periodontal indices and patient comfort. Methods: Fifty patients with gingivitis, periodontitis, or peri-implantitis participated. Baseline data, including Plaque Index (PI), Gingival Index (GI), Papillary Bleeding Index (PBI), Probing Depth (PD), and Clinical Attachment Loss (CAL), were recorded. Patients underwent treatment using the Vector® Paro Pro system. Evaluations were conducted at baseline, two weeks, and one month post-therapy. Statistical analyses utilized repeated measures ANOVA and paired t-tests, with a significance threshold of p<0.05. Patient experience was assessed via a questionnaire. Results: All periodontal indices showed significant improvement post-therapy. The mean PI decreased from 1.18±0.12 to 0.52±0.08 after two weeks and 0.44±0.09 after one month (p<0.001). Significant reductions were observed in PBI (from 1.68±0.10 to 0.46±0.09) and PD (>4 mm pockets: from 5.55±0.19 to 3.65±0.45; p<0.001). CAL improved significantly (from 0.80±0.18 to 0.70±0.16 after one month; p<0.001). Patient-reported outcomes revealed that 98% experienced no pain during therapy. Conclusion: The Vector® Paro Pro ultrasonic device demonstrated significant clinical improvements in periodontal health, particularly in bleeding reduction and deep pocket management. Its hydroxyapatite-enhanced fluid effectively polished root surfaces and reduced post-therapeutic sensitivity. Patients reported minimal discomfort, underscoring the device’s potential as a comfortable, efficient alternative for non-surgical periodontal therapy. Further studies with longer follow-up periods are recommended to confirm these findings.