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Antibiotic consumption for acne treatment can be changed if we evaluate the consumption patterns. In my project I conducted two experiments: A laboratory experiment which examined tetracycline’s effect on normal skin flora, and a questionnaire survey which mapped the doctors’ treatment strategies for acne. The laboratory experiment showed that the effect of tetracycline on the skin flora was reduced after …
Chalcogenide glasses and films Ga5Sb10Ge20S65:0.1Ho0.1Er with intense luminescence in IR spectral region
Rare-earth elements doped chalcogenide glasses and films, promising materials for optoelectronics, photovoltaics or information technologies, were studied in order to determine their physical and optical properties, especially photoluminescence. In our work we focused on Er and Ho doped chalcogenides of stoichiometry 99,8(Ga5Sb10Ge20S65)0.1Ho0.1Er. We synthetized bulk glass and thin films and characterized it with various methods. In the case of thin …
Biological activity of essential oils and extracts from narrow-leaved lavender (Lavandula angustifolia Mill.) flower
The main objective of this study was to compare the chemical composition and antiproliferative effect of extracts and essential oils from three narrow-leaved lavender (Lavandula angustifolia Mill.) cultivars. Essential oil composition were compared and the drug concentration providing the highest yield of extract was determined. The obtained lavender extracts and essential oils were in vitro tested in HeLa, MCF7, CCRF-CEM …
Subvolcanic intrusions in South Bohemia
Field, microscopic and analytical research of obsidian and porphyric intrusions in the South Bohemian moldanubicum allows the merging of the two occurrences into an identical volcanic event. Amongst the observed minerals in thin sections was highly deformed biotite, both potassium and sodium-calcium feldspar, spherolitic orthoclase, quartz grains, sagenite, amphibole and apatite. The chemistry of the samples proves that they were …
Solar-driven Fenton treatment for the removal of antibiotic-related microcontaminants in an urban wastewater effluents
Water scarcity and water quality deterioration is a major cause of water stress.Irrigation and domestic demands are the main pressures on water resources so there is an active consideration of alternative water resource utilization, including wastewater reuse, but in order to make wastewater a safe and widely applied practice, potential risks towards human health and environmental matrices must be managed.One …
Investigation and Protection of city buildings of different periods – Taking Fuzhou as an Example
In the ancient city Fuzhou, a political stronghold and trading port, the foreign and traditional culture combine to shape a unique architectural form and block style. Through literature inquiries, field investigation, interviews with well-known experts and lessons from failure cases, the author proposes a creative and sustainable protection measure, the « old Museum of Architecture protected areas », to the unique historical …
Primary Study on Discoloration of Stalactites in Hu-Tian Palace
Karst caves are scarce and valuable natural resources of enormous economic significance. Normally, cave inner environment remains subtly stable; however, inappropriate exploitation may lead to ecological changes, even destruction of the landscape. Hu-Tian Palace, a well-known karst cave in China, is a typical case. After storing liquor for years, a thick layer of materials appeared on stalactites and gradually changed …
Analysis of Electrodermal Activity to Quantify Stress Levels in Autism
The objective of this research is to establish a method by which skin resistance readings could serve as early warning signs of a sensory meltdown in autism. Through monitoring electrodermal activity in correspondence with the introduction and reduction of stressors, this research aimed to determine the way in which different types of stress are exhibited in skin resistance readings. Methods …
Synthetic Limpet Teeth for Improved Joint Performance
The construction of prosthetic implants by synthesizing the constituents of limpet teeth showed great potential as a viable alternative to current implants. Combinations of chitin, goethite, chlorophyll extract, vitamin B12, and isopropanol were tested against existing prosthetic composites. 535 physical, 46 chemical, and 44 biological stress tests concluded that synthetic limpet teeth prosthetic implants were more resilient and could reduce …
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Scientific field Computing Country Bulgaria Contestants Viktor Todorov Dakov Share this Post