The skin serves protective roles for internal organs and is responsible for maintaining homeostasis between the body and the environment. The outermost and most exposed part of the skin to environmental factors is the stratum corneum (SC). SC hydration and transepidermal water loss (TEWL) values provide information about the physiological state of the skin. Plant oils, owing to their chemical structure, possess moisturizing and protective functions. This study assessed the impact of a single application of drying oil (Rubus idaeus seed oil), semi-drying oil (Sesamum indicum seed oil), and nondrying oil (Cocos nucifera (coconut) oil) on specific skin characteristics in young, healthy women. Thirty-five female volunteers (age: 20.03 ± 1.69) participated in the study. Before commencing the investigation, a questionnaire survey on the subjective assessment of skin condition and a body composition test were conducted. Subsequently, each participant had three oils applied to nonoverlapping skin areas on the forearms. Skin characteristics were assessed before and 1 h after the oil application using specialized probes: a corneometer and a tewameter. An enhancement in skin hydration was evident after the application of each of the tested oils (p = 0.001). Raspberry oil demonstrated the most significant moisturizing effect, while coconut oil showed the weakest impact. Only raspberry seed oil (p = 0.012) resulted in a noteworthy decrease in TEWL. The initial skin condition did not correlate with the subjects’ body composition, and the improvement induced by the application of the oils was not dependent on body weight, body water content, or BMI (body mass index). The applied vegetable oils positively influence the level of SC hydration. Improvement in barrier function, as measured by TEWL, was observed only for raspberry seed oil.

Introduction: Mercury release in the environment is mainly the result of human activity, particularly from coal-fired power stations, residential heating systems, waste incinerators, and as a result of mining for mercury, gold and other metals, which have led to widespread global mercury...

The objective of our investigation was to verify a questionnaire’s suitability in identifying managerial competencies concerning managers’ personality characteristics. Methods: For the content validity of the questionnaire assessment of managerial competencies (AMC23), we investigated its coherence with the appraisal of the management style methodology, i.e., managerial grid (MG), with correlation analysis. The existence of statistically significant relationships between the assessment of managerial competencies and managers’ personality characteristics was determined using Pearson’s correlation coefficient concerning the BIG-5 model. Results: In total, 573 managers participated in this study. Our examination concludes that motivational competencies correlated positively with the compromise and cooperative style; performance competencies with the competitive and cooperative style; and social competencies with the cooperative, adaptive, and compromise style. Not least, target competencies positively correlated with the competitive and cooperative style. Further, neuroticism negatively correlated with social managerial competence, extraversion, and openness to experience, which positively correlated with motivational and target competence. Friendliness was positively associated with social competence, and diligentness positively correlated with motivational, performance, and target competence. Conclusion: We determined significant correlations between managerial competencies (AMC23) and managerial style (MG). Our findings might have implications for further investigation and the development of more comprehensive instruments to assess managerial competencies in connection with managers’ personalities. We point out the need for further research to verify, improve, and constitute a model that further elucidates and explains managerial competencies.

Vibration exercises on a platform (whole-body vibration, WBV), widely used in rehabilitation, sports medicine, and fitness, is an alternative to strength effort. The presented study assessed the effect of a 12-week cycle of vibration training on the serum concentrations of brain-derived neurotrophic factor (BDNF) and cortisol in young women (trial ID: ACTRN 12621000114842). Volunteers were assigned to three groups: performing exercises on a vibrating platform (n = 17), performing identical exercises without a platform (n = 12), and passive control group (n = 17). The concentration of BDNF and cortisol was assessed four times: before the first training session, 5 min after it, also before, and 5 min after the last training session. There were no statistically significant changes in the groups or among groups for both substances. WBV in the presented form did not increase the secretion of BDNF and is not a stressful stimulus.

Introduction and Objective: Contamination of soil by mercury poses several risks to human health through consumption of fruits and vegetables. In Slovakia, a high concentration of mercury is found in the soil of the Central Spiš region. The objective of the study is to measure the mercury...

Burnout syndrome is considered a disease of modern societies. Research has shown that burnout is related to reduced performance in the workplace. Many times, burnout syndrome occurs in helping professions, such as healthcare or social services. The aim of this explanatory research is to determine the relationship between the degree of burnout syndrome, personality traits, and determinants of burnout syndrome of managers in public administration. The Maslach Burnout Inventory (MBI) has been used to measure burnout syndrome. Personality traits, i.e., neuroticism, extraversion, openness to experience, five-factor inverters (NEO FFI), and assessing the determinants of burnout syndrome (PDSV) have been considered. The research sample consisted of (n = 226) managers in public administration. Based on the determined three hypotheses, we brought together sufficient evidence to provide more than a tentative conclusion that there is a positive association between NEO FFI and PDSV, MBI and PDSV, as well as MBI and NEO FFI. It can be inferred that a high workload and a lack of resources are some of the most compelling aspects that can instigate burnout. In addition to what has been assumed, there is argumentation among professionals about what is burnout, its symptoms, diagnostic criteria, environment of its occurrence, which demands further investigation to waive the vagueness and ambiguity of the concept of burnout syndrome.