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A new way to repel ice

20.03.2020

Ice is one of the most problematic factors in many industrial, service and transportation segments, causing disasters and problems of various kinds and complexity. The development of new materials for ice rejection is becoming a real hot topic for many research teams, and the chemical engineering team at the University of Virginia is no exception. Today, scientists presented their new experimental material, which has a very high degree of ice repulsion, due to which it has the potential to be used in a variety of directions and segments.

The specialists managed to create this material on the basis of a rather effective and popular theory in physics called "disaster localization". According to this theory, changing the physical and chemical properties of certain areas of the material is a much more efficient and useful approach than creating the entire material with the desired properties. The result of the research was a special film made of silicone polymer, which demonstrates a high degree of ice repulsion due to the formation of localized areas of so-called "cracks" on the surface.

These cracks are not permanent and do not lead to degradation of the material, but on the contrary, enhance its properties in certain areas, creating irregularities, due to the exfoliation of ice layers - as a result, the material repels the vast majority of ice and ice cover, thereby effectively protecting others. materials. And thanks to its easy application to other materials, it can be used in almost any suitable case.

At the moment, specialists continue to work on improving and stabilizing their material - as they are interested in applying this material on a longer-term basis in more complex aspects and directions. It remains to wait for new news regarding the material, which will surely occupy its niche.

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People become more merciful as they age 24.12.2023

With age, changes occur not only in human physiology, but also in his social behavior. Recent research from Claremont Graduate University in California calls attention to how the hormone oxytocin, known as the “love hormone,” may influence compassion and compassion in older adults.

The results of a study of the hormone oxytocin and its influence on the expression of mercy in older people provide valuable research data. It is noted that with age, people become more generous and helpful, probably due to richer life experience and better management of emotions. Highlighting the interconnected mechanism between oxytocin, empathy, and giving expands our understanding of social behavior and provides food for thought about the factors that shape compassionate attitudes in older age.

The experiment involved showing a video of a man's deep feelings towards his suffering son, which became a catalyst for charitable acts. Participants ages 65 and older showed an amazing amount of generosity, donating three times as much as youth ages 18 to 35.

Blood tests revealed that the older participants' oxytocin levels increased significantly in response to watching the video. This finding supports the idea that older adults' rich life experiences may promote strong empathy by activating the body's release of oxytocin.

Experts suggest that age-related changes in emotional regulation in older adults allow them to more effectively cope with negative emotions by shifting their attention to feelings of compassion. As a result, oxytocin levels increase, stimulating charity and attention to those in need.

Although oxytocin plays a role in the feeling of compassion, human social behavior is influenced by many factors, making it complex and multifaceted.

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