The deterioration rate of railway infrastructure and track geometry increases during their life cycle, and the performance of maintenance activities decreases over time.The average age of tracks in Serbia is over 50 years old, which requires exceptional knowledge and skill of the Infrastructure Manager to adapt the maintenance strategy to the infra

The world must find a way of producing fuel from renewable energy sources to Shaving replace the fossil fuels.The sustained production of hydrogen by Chlorella sp., a unicellular green alga, can be achieved in sulfur-deprived culture conditions, besides integrating dark and light bio-hydrogen production strategy.Moreover, dark fermentation carried

The objectives of the study were to examine occupational exposure to phthalates of hairdressing apprentices from Slovakia (n = 74, 89.2% females; 10.8% males), outcomes related to body composition and pulmonary functions.We used high-performance liquid chromatography and tandem mass spectrometry to the quantified urinary concentration of phthalates