Theoretical and empirical insight notes that cyber security awareness is a topic of particular interest in cyber security. Humans are the central figures in cyber security and the way to reduce risk in cyberspace is to make people more security aware. While there have been numerous studies about various aspects of cyber security awareness, they are both inconsistent and environment-dependent. The main aim of our research is to analyze cyber security awareness in depth, and to try to discover how various factors such as socio-demographics, cyber security perceptions, previous cyber security breaches, IT usage, and knowledge may individually or together impact on cyber security behavior. To prove that we conducted our research on students, as they are the most technologically active part of the society. We discovered that knowledge proved to be the dominant factor for cyber security awareness, and although students are digital natives, they do not feel safe in the cyber environment; they do not behave securely and do not have adequate knowledge to protect themselves in cyberspace.

Aim: The Covid-19 pandemic may be associated with an increase in mental disorders and mental distress. However, there are no representative studies testing the impact of stressors directly related to Covid-19. We aimed to determine whether Covid-19-related stressors were associated with mental disorders, depressive and anxiety symptoms in the second year of the pandemic. Method: This cross-sectional observational epidemiological survey was conducted from June to October 2021. We interviewed a representative sample of the adult population in Serbia (18–65 years) in the second year of the pandemic, at a time when large parts of the population had been affected by the pandemic in different ways. A multistage probabilistic household sampling of the adult population in 60 municipalities was used. Mental disorders were assessed by in-person interviews using the Mini International Neuropsychiatric Interview. Depressive and anxiety symptoms were measured by PHQ-9 and GAD-7 scales. Covid-19-related stressors (Sars-CoV-2 infection, the infection of a close relative, self-isolation and lack of protective equipment at work), as well as other stressors during the pandemic (not directly related to the risk of the infection), were measured. The associations with mental disorders, depressive and anxiety symptoms were explored through univariable and multivariable regression analyses. Results: In total, 1203 individuals (mean age 43.7 ± 13.6 years, 48.7% male) were interviewed. Most respondents (67.8%) of the sample had already experienced Covid-19-related stressors (20.1% had Sars-CoV-2 infection; 43.2% had a close relative member who had Covid-19; 28.2% reported lack of appropriate protection; 27.5% had been quarantined) and about 50% had already been vaccinated. The prevalence of any mental disorder was 15.2% (95% CI 13.2–17.2): mood disorders 4.6%, anxiety disorders 4.3% and substance use disorders 8.0%. Mean PHQ-9 was 3.2 ± 3.8 and GAD-7 was 2.1 ± 3.1. In this study, one Covid-19 stressor, i.e. lack of protective equipment, was weakly associated with a greater frequency of anxiety disorders (p = 0.023), while the other stressors had significant associations with several groups of mental disorders and symptom levels. Conclusions: Our study did not provide any evidence that the prevalence of mental disorders exceeds the range of pre-pandemic data reported in the literature. Covid-related stressors, although frequently reported, did not dramatically influence the prevalence of mental disorders. The provision of the appropriate equipment at workplaces might lead to the reduction of anxiety disorders.

The positive impacts of urban forests on residents’ health are widely acknowledged. However, the methods used to quantify and demonstrate this relation are still a focus of research. The aim of the paper is to examine the relationship between the size and quality of different urban green areas to residents’ health based on the face-to-face survey and remote sensing data at 12 locations in Belgrade. The socio-economic and self-perceived health characteristics were analyzed. Based on green areas’ size and pollution, municipalities were divided into “less green” and “green”. Vegetation quality was assessed by Sentinel-2 vegetation indexes (VI). Results show that residents in less green and green municipalities differ in physical, social, and emotional health. The quality of green areas was inversely proportional to the amount of money spent on medications and the number of doctor’s visits indicating potential mechanisms of the health benefits of green areas. The lack of facilities led to different appreciation among residents. Results suggest that the quality of green infrastructure is more important than the amount in promoting residents’ health. Relating the characteristics of green areas to visitors proved to improve the correlation between residents’ health and the quality of green areas.

The aim of this research was to give further evidence for the influence of vestibular and proprioceptive information on distance perception, and to verify how perceived distance changes if we use matching versus verbal judgment task. That is, the aim was to investigate how perceived distance changes when we bend over and look between the legs. The experiment was performed on a daylight open field (full-cue situation), with 20 participants, high school students from the Petnica Science Center. Participants had the task to match distances of two stimuli, one of which was in front of them at eye level, whereas the other was behind them, and they could observe it by bending their body forward and looking between the legs. Stimuli were 7cm*5cm large, and rectangular in shape. Results have shown that perceived distance changes in such a way that distances observed between the legs are perceived as longer than distances observed from an upright position. This difference in perceived distances exists only for larger physical distances (3m and 5m), but not for smaller physical distances (1m). Results coincide with our previous findings which indicate that vestibular and proprioceptive information change elongates perceived distance. On the other hand, the results contradict some findings gained in experiments in which the verbal judgment task was used. These contrary results probably appear because the verbal judgment task leaves more space for higher cognitive processes to be involved.