In our research project we created a new corporate graphic image of Secondary School of Mechanical Engineering, Mechatronics, and Media about what is important for successful brand marketing. With the help of surveys and interviews we researched the view of students of ŠCC SMM, teachers and other high school students on the appearance and graphic image of our school. It …
The impact of energy drinks on heart rate recovery
This study aimed to determine if there was a significant difference in heart rate recovery (HRR) after consuming an energy drink during sport activity. Male subjects aged 17-18 participated in standardized aerobic exercises, categorized as athletically active or inactive based on V02 max measured by Beep test. Each group consumed a caffeine, sugar and taurine-containing energy drink and a placebo …
Remediation of polychlorinated biphenyls (PCBs) and heavy metals via sustainable removal techniques
The escalating pollution by polychlorinated biphenyls (PCBs) and heavy metals highlights the urgency of finding sustainable remediation methods. Our research therefore aimed to investigate sorption and phytoremediation techniques. Our results indicate the necessity of a complex geochemical survey in contaminated areas. In the most affected sites, we suggest the use of activated charcoal, optimal for both PCBs (98.14%), and heavy …
Online student calendar – iSCAL.sk
Attendance in competitions, lectures and open-door days significantly helps students with their individual growth and knowledge gains. There are many activities offered by institutions, which is certainly a positive fact. However, it simultaneously causes trouble for people to find important information such as date, venue or form the event will be held in. Each event has its own landing page, …
Making a High-Aperture Varifocal Membrane Reflector Telescope
Our project proposes a new and innovative way of manufacturing reflector telescopes, instead of using the traditional method, where a glass cylinder has to be ground to a concave, we use a thin 2mm membrane with a mirrored side, by varying the pressure difference between the opposite sides of the membrane, we can effectively adjust the focal length, therefore making …
Bee Api & Face
Do bees recognize their beekeeper by facial identification? By exploiting the floral constancy and insatiability of bees, we are subjecting foragers to reinforcement learning: we are conditioning them to recognise a beekeeper by associating a reward solely with a photo of his face. The experiment consists of varying the faces proposed and recording their performance in finding the sugar water. …
Ça tourne ! Action !
Turning a coin on itself is a trivial gesture. But when you see that a can move and vibrate for several minutes, it’s easy to think that there’s something interesting to study behind this movement. And that’s what we did. But taking measurements, when the movement of the coin seems so complex, required us to set up experiments that we …
Valuable Products from Waste Cotton – Optimising the Pre-treatment of Cellulose Nanocrystal Production
Cellulose is the most abundant biopolymer in the world – cellulose originating from waste textiles has the potential to be recycled into valuable future applications. Cellulose nanocrystals, CNCs, are the crystalline regions of cellulose fibrils and can be separated thorough acid hydrolysis. In this study, CNCs were produced from a cotton t-shirt using a new method of hydrolysis using hydrochloric …
Immunomodulatory Effects of Multi-Walled Carbon Nanotubes in Homo sapiens THP-1 Macrophages
This study examined the effects of low cytotoxic concentrations of multi-walled carbon nanotubes (MWCNTs) on the gene expression of thirteen selected cytokine genes in THP-1 macrophages. The production and applications of MWCNTs are augmenting, so their hazardous potential on human health must be well-characterized to develop effective therapeutics and appropriate safety protocols. This knowledge can be used to evaluate toxicity …
MegaView
MegaView is an offline app (without an internet or database connection) for mobile phones, tablets, fitness bracelets, smartwatches, or any other electronic device that can transmit audio messages providing specific information to visually impaired individuals. The app can be easily customized based on usage (wardrobe, traffic circulation, books, etc.). By utilizing real-time object recognition technology (YOLO and TensorFlow Lite, OCR), …