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Heat resistant bioplastic

02.11.2020

Japanese scientists have created the most heat-resistant plastic using a special macromolecular design that was obtained from natural materials.

Most of the plastics we use on a daily basis are synthetic materials derived from petroleum. Many scientists have long been trying to come up with a replacement for plastic using more sustainable materials such as plants, eggshells, chicken feathers, etc.

These alternative ways of producing plastics could not only reduce humanity's dependence on fossil fuels, but also lead to more "environmentally friendly" materials, as they can degrade faster in natural conditions. But, unfortunately, to date, all alternatives are less durable and flexible than petroleum-based plastics. Therefore, Japanese scientists thought about a way to make a more durable and stable alternative.

Researchers from the Institute of Science and Technology and the University of Tokyo observed the sulphate process of turning wood into cellulose. During this wood processing method, scientists obtained two aromatic molecules called AHBA and ABA.

The scientists combined these molecules with recombinant microorganisms and some chemicals, turning them into polymers, which, in turn, could be easily processed into a heat-resistant film. The end product was a lightweight organic plastic that has the highest temperature resistance of any plastic known, as the material can withstand temperatures of over 740°C!

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A dog has a positive effect on the health of its owner 27.09.2023

Keeping a dog indoors can have positive effects on human health, reducing the risk of heart disease, diabetes and depression.

Scientists analyzed the impact of having a dog in the house on a person's physical and mental health and identified a number of significant benefits, despite the presence of scientific studies that call this into question.

A study of nearly 4 million people in the US, Canada, Scandinavia, New Zealand, Australia and the UK in 2019 found that owning a dog was associated with a 24% reduction in the likelihood of premature death from any cause.

This benefit is especially noticeable among people who have had a heart attack or stroke. Their risk of dying from cardiovascular disease is reduced by 31%. The US Heart Association also emphasizes the benefits of dog ownership in reducing the risk of diabetes. Regular walks with your pet can promote weight loss.

Professor Harold Duke of Western Carolina University lists a number of benefits including increased survival, improved heart health, less loneliness, lower blood pressure, psychological well-being, reduced depression and stress, fewer doctor visits, increased self-esteem, improved sleep and physical activity.

However, it should be noted that there are studies that indicate the opposite trends: pet owners are more likely to experience loneliness, depression and panic attacks, and also have an increased risk of asthma, obesity, high blood pressure, stomach ulcers, migraines and use more medications.

The situation is complicated by the fact that choosing an animal that is not suitable for its character can lead to negative consequences for a person’s physical and mental health. However, when there is harmonious interaction between human and animal, a dog or other pet can have an extremely positive impact, especially during times of stress.

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