On September 12, 2020 passed away prominent scientist, academician professor Mehmed (Mesa) Gribajcevic, former Head of Divison of the Clinic for Gastroenterohepatology of the Clinical Center of Sarajevo University.

This paper presents a combined subjective and objective evaluation of an application mixing interactive virtual reality (VR) experience with 360° storytelling. The hypothesis that the modern immersive archaeological VR application presenting cultural heritage from a submerged site would sustain high levels of presence, immersion, and general engagement was leveraged in the investigation of the user experience with both the subjective (questionnaires) and the objective (neurophysiological recording of the brain signals using electroencephalography (EEG)) evaluation methods. Participants rated the VR experience positively in the questionnaire scales for presence, immersion, and subjective judgement. High positive rating concerned also the psychological states linked to the experience (engagement, emotions, and the state of flow), and the experience was mostly free from difficulties linked to the accustomization to the VR technology (technology adoption to the head-mounted display and controllers, VR sickness). EEG results are in line with past studies examining brain responses to virtual experiences, while new results in the beta band suggest that EEG is a viable tool for future studies of presence and immersion in VR.

Magnesium has little resistance to corrosion and therefore its production and use are quite limited. The problem of corrosion associated with these alloys has been alleviated to some extent by the advantages obtained from fine coatings. An additional dense barrier against corrosion is created, using coatings obtained from sol-gel. As an alternative for Cr-based conversion coatings, rare-earth elements-based ones are been increasingly investigated for Mg and its alloys due to being eco-friendly. Because of chemical inertness, low friction, and high hardness, diamond-like carbon (DLC) coatings have exhibited the best protection for Mg and its alloys. In this review, we shed light on recent advancements in novel coatings for Mg alloys including hybrid, rare-earth conversion, composite polymeric (polymer composite is a multi-phase material in which reinforcing fillers are integrated with a polymer matrix), and DLC coatings.

UDC 517.9We present necessary and sufficient conditions for the reducibility of a self-adjoint linear relation in a Krein space. Then a generalized Nevanlinna function Q represented by a self-adjoint linear relation A in a Pontryagin space is decomposed by means of the reducing subspaces of A . The sum of two functions Q i ∈ N κ i ( ℋ ) , i = 1,2 , minimally represented by the triplets ( 𝒦 i , A i , Γ i ) is also studied. For this purpose, we create a model ( 𝒦 ˜ , A ˜ , Γ ˜ ) to represent Q : = Q 1 + Q 2 in terms of ( 𝒦 i , A i , Γ i ) . By using this model, necessary and sufficient conditions for κ = κ 1 + κ 2 are proved in the analytic form. Finally, we explain how degenerate Jordan chains of the representing relation A affect the reducing subspaces of A and the decomposition of the corresponding function Q .

The study examines the relationship between strategic leadership, strategic performance, and corecompetence among teachers from Lebanon's educational sector. Using a sample size of 106 observations,with a convenient sampling method (quantitative), the results, which are attained using regression analysis,showed that core competence has a direct effect on strategic performance and strategic leadership.Conversely, strategic leadership has not shown its significant mediation role in effecting strategicperformance through core competence. The examination of the data is performed using the mediationregression model. Other implications, limitations, and future works are further discussed.

Congenital cytomegalovirus (CMV) infection is the most common infectious cause of birth defects. It maycause both, immediate and long term health problems in infants. These include variety of symptoms, suchas hearing loss, microcephaly, jaundice, hepatosplenomegaly and seizures. In more severe cases CMVinfection can cause the death of an unborn baby and loss of pregnancy. Despite being one of the mostextensively studied vertically transmitted infections recently, the adverse effects of vertically transmittedCMV infection are still not well presented to the general public, resulting in a low awareness amongpotential expectant mothers in Bosnia and Herzegovina. This study aims to elucidate the sensitivity of urinesamples for CMV detection in infants as well as to reflect the importance of quantitative real-time PCR(qRT-PCR) in diagnostics of CMV infection in infants. qRT-PCR was used in this study as a technique forthe screening of CMV DNA in a cohort of patients based in Sarajevo Canton. These results have shownthat urine samples are sufficiently sensitive for the detection of CMV DNA in infants. Furthermore, thesimultaneous analysis of several patients has shown a higher number of CMV DNA copies amplified inurine compared to blood samples, derived from the same patient, thus proposing urine as a reliable sampleof choice for congenital CMV diagnostics. These findings may propose a need to classify qRT-PCR CMVtest among one of the recommended first-trimester pregnancy screening tests, which could help in earlydetection of CMV infection in Sarajevo Canton.

is why many birds exploited positive wind assistance which occurred on intense migration nights. This implies that the seasonal wind regimes over the North Sea alter its migratory dynamics which is reflected in headings, timing and intensity of migration.

Test automation has been an acknowledged software engineering best practice for years. However, the topic involves more than the repeated execution of test cases that often comes first to mind. Simply running test cases using a unit testing framework is no longer enough for test automation to keep up with the ever-shorter release cycles driven by continuous deployment and technological innovations such as microservices and DevOps pipelines. Now test automation needs to rise to the next level by going beyond mere test execution.

Abstract Hypoxia is an essential hallmark of several serious diseases such as cardiovascular and metabolic disorders and cancer. A decline in the tissue oxygen level induces hypoxic responses in cells which strive to adapt to the changed conditions. A failure to adapt to prolonged or severe hypoxia can trigger cell death. While some cell types, such as neurons, are highly vulnerable to hypoxia, cancer cells take advantage of a hypoxic environment to undergo tumour growth, angiogenesis and metastasis. Hypoxia‐induced processes trigger complex intercellular communication and there are now indications that extracellular vesicles (EVs) play a fundamental role in these processes. Recent developments in EV isolation and characterization methodology have increased the awareness of the importance of EV purity in functional and cargo studies. Cell death, a hallmark of severe hypoxia, is a known source of intracellular contaminants in isolated EVs. In this review, methodological aspects of studies investigating hypoxia‐induced EVs are critically evaluated. Key concerns and gaps in the current knowledge are highlighted and future directions for studies are set. To accelerate and advance research, an in‐depth analysis of the functions and cargo of hypoxic EVs, compared to normoxic EVs, is provided with the focus on the altered microRNA contents of the EVs.

The purpose of this study was to examine the relationship between leg muscle power, balance, coordination, and shooting skills in soccer. Participants in this study used 89 soccer athletes with an age range of 15-18 years (M = 17.6; SD: 1.30). The research instrument used a coordination test (soccer wall volley test), balance test (modified bass test), leg muscle power (standing long jump test or broad jump), and shooting skills test. Data collection techniques, namely by measuring tests and measurements by the implementation procedure. Data analysis in this study was using Pearson correlation and regression analysis with the help of the IBM SPSS 24 application. The results showed that: 1) There was a relationship between leg muscle power and shooting ability using instep; 2) There is a relationship between balance and the ability to shoot using the instep; 3) There is a coordination relationship with the ability to shoot using the instep; and 4) There is a relationship between leg muscle power, balance, and coordination with the shooting ability using the instep. Recommendations for further research are suggested to involve other independent variables (X) that are relevant to this study, such as leg length, running speed, and angle of impact.

Basal ganglia calcifications 2/12 (16.7%) Elevated IFN Score 17/17 (100%)* Short stature 15/24 (62.5%) O001 Clinical features and outcomes in sting-associated vasculopathy with onset in infancy (SAVI) S. Torreggiani, A. Almeida de Jesus, S. Alehashemi, J. Mitchell, G. Souto Adeva, J. Wade, G. A. Montealegre Sanchez, B. Lin, R. Goldbach-Mansky, on behalf of SAVI Study Group TADS/NIAID, NIH, Bethesda, United States; Università degli Studi di Milano, Milano, Italy Correspondence: S. Torreggiani Pediatric Rheumatology 2020, 18(Suppl 2):O001