Drying of textiles in industrial facilities represents an energy-intensive process where a large number of measures for energy and production cost savings can be introduced. Typical measures include the introduction of energy management, waste-heat recovery, process optimization and so on. Drying is a complex process with coupled heat and mass transfer between the heated air and humid textile, where parameters such as the air flow rate, air velocity and its flow regime and textile velocity and water content represent significant influential factors. The distribution of air temperature and density inside the drying section of an industrial stenter frame is analyzed in detail using three-dimensional numerical simulation, where the textile is modeled as a porous medium to analyze moisture diffusion within the textile. Heated air is introduced into a chamber by inlet nozzles and removed by exit nozzles, the distribution of which is based on actual machine configuration. A humid textile is introduced into a section, where temperature and density distribution within the textile are calculated for selected time periods. During the simulation in the Fluent program, models of specific component transport, multiphase air flow, turbulent flow, porosity and evaporation were used. The results represent a valuable data set that provides an in-depth insight into the drying process in the industrial stenter machine.

Healthcare workers (HCW) in primary healthcare centres in the Republic of Srpska, Bosnia and Herzegovina, are on the first combat line with COVID-19. This study aimed to assess the seroprevalence of SARS-CoV-2 among HCW at the primary healthcare centres and to analyse the risk exposure to COVID-19, clinical signs and vaccination status. A cross-sectional study was conducted among HCW at the selected primary healthcare centres between 19 March and 30 April 2021. Antibodies against the SARS-CoV-2 virus were detected by enzyme-linked immunosorbent assay (ELISA). A total of 1,023 HCW (mean age 45 years; 71% female) were included in the study. The anti-SARS-CoV-2 antibodies were detected in 69.5% of all participants. There was a significant difference in seropositivity among primary healthcare centres from different geographical regions. As many as 432 (42%) of all participants had confirmed COVID-19 symptoms before the study and, 84.8% of them were seropositive. This study showed that 702 primary HCW were vaccinated with any of these vaccines: Sputnik V, Sinopharm, Pfizer/Biontech. High titre of SARS-CoV-2 antibodies was found amongst those who received one (92.6%) or both (97.2%) doses of vaccines. In this study, we report high prevalence of SARS-CoV-2 antibody among HCW in primary healthcare in the Republic of Srpska, Bosnia and Herzegovina during the third pandemic wave.

The modern concept of lightweight design (LW) requires the application of different materials in one structure (multi-material structures). The structure of different materials has a good perspective for application in the automotive and aerospace industries but only if it is possible to achieve a quality joint between different materials. The most used technology for joining different materials in the automotive industry is Resistance spot welding (RSW). Due to different mechanical, physical, and chemical properties, the joining of different materials by RSW technology does not provide a quality joint, and accordingly, alternative technologies for joining different materials have emerged. Resistance element welding (REW) was developed to enable joint of different materials. This paper presents the welding of AW 5754 H22 Al alloy (1.0 mm-thick) and DP500 steel (1.5 mm-thick) using novel REW. The peak load, absorption energy, microstructure, microhardness and fatigue strength of the REW joint has been investigated. The joint of the same materials has been done also using conventional RSW to compare some results. The results that will be presented in this paper show that that REW can achieve reliable joining of the two materials at relatively low welding currents compared to RSW. Using REW process with a significantly lower welding current, satisfactory mechanical characteristics of the weld joint can be achieved, so peak load is between 2300–2500 N, displacement is between 2.5–3 mm and the absorption energy is between 3.3–5.7 J. REW joints showed fatigue strength with the fatigue limit of 882 N.

Providing the population with sufficient quantities of hygienically healthy food is the foundation of public health protection. According to the current BiH Law on Food, the main goal is to ensure a high level of human health protection, and the measures applied should be based on risk assessment. Regular food monitoring is one of the key public health problems, and this paper presents the quantitative risk of copper intake by consuming mint herbal tea infusions. The average copper concentration in the 20 analyzed samples of mint herbal tea infusions was 0.0028 ± 0.0125 mg / kg, while the value of the average daily intake was less than the oral reference dose for copper, so that the hazard coefficient itself was <1 , and consuming the analyzed infusions of herbal mint tea has no harmful effects on the health of the surveyed children.

Abstract Background We compared the accuracy of preoperative transvaginal ultrasound (TVUS) versus magnetic resonance imaging (MRI) for the assessment of myometrial invasion (MI) in patients with endometrial cancer (EC), while definitive histopathological diagnosis served as a reference method. Patients and methods Study performed at a single tertiary centre from 2019 to 2021, included women with a histopathological proven EC, hospitalized for scheduled surgery. TVUS and MRI were performed prior to surgical staging for assessment MI, which was estimated using two objective TVUS methods (Gordon’s and Karlsson’s) and MRI. Patients were divided into two groups, after surgery and histopathological assessment of MI: superficial (≤ 50%) and deep (> 50%). Results Sixty patients were eligible for the study. According to the reference method, there were 34 (56.7%) cases in the study with MI < 50%, and 26 (43.3%) with MI > 50%. Both objective TVUS methods and MRI showed no statistical significant differences in overall diagnostic performance for the preoperative assessment of MI. The concordance coefficient between both TVUS methods, MRI and histopathology was statistically significant (p < 0.001). Gordon’s method calculating MI reached a positive predictive value (PPV) of 83%, negative predictive value (NPV) of 83%, 77% sensitivity, 88% specificity, and 83% overall accuracy. Karlsson’s method reached PPV of 82%, NPV of 79%, 69% sensitivity, 88% specificity, and 80% overall accuracy. Accordingly, MRI calculating MI reached PPV of 83%, NPV of 97%, 97% sensitivity, 85% specificity, and 90% overall accuracy. Conclusions We found that objective TVUS assessment of myometrial invasion was performed with a diagnostic accuracy comparable to that of MRI in women with endometrial cancer.

The aim of the paper is to analyze international sanctions in the third decade of the 21st century. International sanctions are non-violent actions that individual states undertake against other states to force them to change certain foreign and domestic policy aspects that are considered unacceptable. Sanctions, introduced by one country, or an international organization are divided into unilateral and multilateral. Sanctions are usually divided into three forms: diplomatic (restriction or complete termination of diplomatic relations), economic (usually related to the prohibition of trade, usually related to weapons), and military sanctions. The aim of the paper is to analyze the current economic multilateral sanctions against the Russian Federation. The purpose of the introduction of sweeping sanctions is to try to overthrow the current government, which made it impossible to implement the policy that led to the introduction of the sanctions. Descriptive and comparative methods and scientific articles were used in the paper together with announcements by regulators, websites of relevant institutions, books, etc. Data on monthly oil and gas production, exports, inflows, and outflows of capital, mandatory financial reports of large companies, data on the monetary base of the central bank, data on direct foreign investments, and data on lending are observed. The paper shows that the general public is actually deprived of a large number of essential statistical data that was updated on a monthly basis until February 2022. Namely, one of the key reasons why there is doubt about the effectiveness of sanctions is that not enough relevant economic indicators are coming from Russia. Instead, optimistic Russian economic analyses, forecasts, and projections are transmitted. The work indicates that there are certain misconceptions among experts and the general public regarding sanctions. The conclusion is that certain sanctions, such as bans related to agricultural products and artificial fertilizers, have been relaxed. However, all sanctions are introduced to hurt the country and lead to regime change. The paper raises numerous questions arising from the fact that there is great uncertainty that has led to a slowdown in economic activity at the global level.

ABSTRACT Due to its economic worth, cotton (Gossypium hirsutum L.) is grown in almost 70 countries and provides income for more than 250 million people. Therefore, producing cotton with having some desired characteristics that includes extended biotic and abiotic stress tolerance, improved fiber quality, promoted nutritional content and increased yield is the main objective for cotton biotechnology. To achieve this goal, many tissue culture and gene transfer techniques are being developed and used throughout the years. As applications for the gene transfer, the Agrobacterium-mediated, particle bombardment and pollen tube pathway-mediated methods are most successfully used and in conjunction with this, meristematic shoot tips as explants are efficiently utilized in gene transfer methods. In this study, the main objective was to report an efficient protocol for a greater recovery of transgenic cotton plant using Agrobacterium tumefaciens-mediated transformation. For this, one of the cotton strains (Cukurova 1518) cultivated widely in Turkey was chosen and meristematic shoot tips as explant sources, and GFP and NPTII genes as reporter and marker genes were used, respectively. The effective post co-cultivation conditions were provided via using the selection regime in vitro. Finally, the current results showed highly reproducible protocol developed could be used to produce transgenic cotton plants expressing desired traits or can be utilized as a model system to study the expression of particular genes.

BACKGROUND Type 2 diabetes mellitus (T2DM) is commonly associated with hyperglycemia, dyslipidemia, oxidative stress and inflammation which are well known cardiovascular risk factors. Pomegranate peel polyphenols have a proven hypolipemic, antioxidant and anti-inflammatory activity. However, there is a lack of clinical studies that would confirm its antioxidant and anti-inflammatory effects in diabetic patients. The potential of pomegranate peel extract (PoPEx) to counteract inflammation and oxidative stress in T2DM patients was investigated. For this purpose, a randomized, double-blind placebo-controlled study involving adult T2DM patients treated with PoPEx or placebo for eight-weeks was conducted. METHODS Patients were randomly divided into two groups: the first group (n = 30) received capsules containing PoPEx 250 mg twice daily, while the placebo group (n = 30) received placebo capsules twice daily. Plasma concentration of inflammatory factors (interleukin 6 (IL-6), tumor necrosis factor α (TNF-α) and high sensitivity C reactive protein (hsCRP)), oxidative stress biomarkers (thiobarbituric acid reactive substances (TBARS), nitrites (NO2-), superoxide anion radical (O2-), hydrogen peroxide (H2O2), total antioxidant capacity (TAC)), homocysteine and lipid profile were analyzed. RESULTS The PoPEx treatment showed a significant reduction of inflammatory factors (IL-6, TNF-α, hsCRP), oxidative stress biomarkers (TBARS, NO2-, O2-) and homocysteine, while the TAC was increased. Moreover, a significant improvement in lipid profile was observed in the PoPEx group. Additional analysis showed a significant inverse correlation between the decrements of all measured inflammatory markers and TAC in the PoPEx group. CONCLUSIONS The study demonstrated that eight-week-long PoPEx administration had favorable effects on inflammatory status and oxidative stress biomarkers in diabetic patients.

This text is a review of New Approaches to University of Sarajevo's Publishing Activities.

The text critically analyses the provisions of the Proposal of the Law on Implementation of the Decisions of Courts in the Federation of BiH concerning their compliance with the Constitution of BiH, precision, Article III/3 /b and the Decision on the Representative/Agent of the Council of Ministers of Bosnia and Herzegovina before the European Court of Human Rights and the Office of the Representative/Agent of the Council of Ministers of Bosnia and Herzegovina before the European Court of Human Rights, as well as the expediency of passing such a law.

Nowadays companies have been facing arising modern world challenges, where rules employee's knowledge, high technology, digitalisation, expertise and innovation, what put demanding tasks for firms to invest more in talents' learning and development in order to master changes and sustain competitive advantage. The purpose of this study was to explore the influence of talented managers’ learning and development on their retention within the companies in Bosnia and Herzegovina. Methodology in this research article included an appropriate questionnaire on talents' training and education and talents' engagement, as the measure for talent retention. The results from this research showed that talented managers in Bosnia and Herzegovina attended mostly “on job trainings and educations through job instructions” and “external trainings through seminars”. Furthermore, it is discovered that talent training and education affect the factors of employee engagement, but it is not statistically significant for talent retention. The contribution of this study is in the first place to the existing theory on talents management, as well as to companies in developing countries to realise the importance of talents learning and development and the need for its customization to talents' uniqueness in order to increase talent retention.

Human coronaviruses are agent which cause respiratory illnesses and have been described to be continously emerging. Seroprevalence of IgM/IgG antibodies was determined by lateral flow immunoassay. Study were include data on participants experience of COVID-19 symptoms during the pandemic (including symptoms and health status). Among 443 serum samples for detection seroprevalence, 186 (42.0%) were seropositive on specific antibodies (IgM/IgG) or participants who had COVID-19 with or without symptoms. Of the seropositive the age group 25-50 years old had the highest percentage (32.8%) followed by 51-64 years (30.6%). Ninety seropositive patients (out of 186; 48.4%) were detected with the specific symptoms. The most frequently symptoms were fever (n=54, out of 90; 60.0%), muscle pain (46.7%), dry cough and loss of smell (36.7%) and others. More than one symptoms were detected in 59 cases (65.6%). The most common comorbidities were diabetes mellitus (n=12, out of 186; 6.5%), than hypertension (nine; 4.8%) and heart diseases (seven; 3.8%). More than half of seropositive were asymptomatic (n=96, out of 186; 51.6%). Note: In period March 2020 - June 2021, among 3323 samples, 804 (24.2%) were positive on SARS-CoV-19 with RT-PCR. The results showed that 394 (out of 804; 49.0%) positive samples were collected from female and 410 (51.0%) from male. The most prevalent of SARS-CoV-19 viruses were detected in > 65 years old (n=267, out of 804; 33.2%). Further research on the contribution of symptomatic or asymptomatic individuals to the community spread of COVID-19 is essential for effective control of the pandemic spread of SARS-CoV-2.