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Fundamentals of First Aid (OPMP)

Free library / Directory / Fundamentals of First Aid

Fundamentals of First Aid (OPMP)



Allergic reactions



Sudden illnesses



Closed damage



Foreign bodies









Fainting, dizziness, heat stroke, sunstroke



Open damage






Principles and methods of resuscitation



Animal bites



Care of the injured and sick



First aid for a child. Childhood diseases



First aid for a child. home treatments



First aid for a child. Accidents



First aid for a child. Disease symptoms



Latest news of science and technology, new electronics:

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

High Energy Density Capacitor 17.05.2024

Energy plays a key role in many aspects of modern life, and the ever-increasing demand for efficient and fast-charging power sources is driving innovation. Researchers at the McKelvey School of Engineering at Washington University in St. Louis have taken a significant step forward with a high-energy-density capacitor that promises to revolutionize the world of energy. A team of scientists from the McKelvey School of Engineering at Washington University in St. Louis presented the results of their latest research on heterogeneous thin-film structures for capacitors. Researchers, working with ferroelectrics, inadvertently created a capacitor with an amazing energy density that is 19 times higher than that of conventional elements. This breakthrough opens up new prospects for the development of fast-charging batteries, which are so necessary in the modern world. Capacitors play a key role in various devices, providing stable ... >>

Causes of conflicts between brothers and sisters 16.05.2024

Family relationships are often complex and multi-layered, and conflicts between siblings are no exception. Research in this area can help us understand what factors underlie these conflicts and why they occur so frequently. Let's look at some of the findings from psychologists at Arizona State University. American psychologists from Arizona State University conducted a study aimed at identifying the causes of conflicts between brothers and sisters. They found that different forms of violence, whether physical or verbal, did not depend on the gender of the siblings. This means that both girls and boys can exhibit aggressive behavior towards their loved ones. Other studies have shown that conflict between siblings often persists into adulthood, even as contact decreases. This indicates that people often follow established patterns of behavior formed in childhood. It was also found that, despite ... >>

Random news from the Archive

Tree fungus - an ecological alternative to plastic 25.02.2023

Scientists have discovered that the tinder fungus (Fomes fomentarius), which grows on trees, has several surprising properties. Researchers believe it could become a natural biodegradable alternative to certain plastics and other materials in the future.

This wood-eating fungus has historically been used to start fires, but also in clothing and medicine. Now it can have a whole new level of utility as a biodegradable alternative to plastic.

The mycelium, composed of thin filaments known as hyphae, forms root-like networks that spread through soil or rotten material. A team of scientists from research institutions in Finland, the Netherlands and Germany say this network can be divided into three separate layers.

Mycelium is the main component in all layers. However, in each layer, the mycelium exhibits a very distinct microstructure with a unique preferred orientation, aspect ratio, density, and branch length.

The researchers studied the structural and chemical composition of the fruiting body of F. fomentarius using samples collected in Finland. Mechanical strength tests were combined with detailed scans of the fungus to study its characteristics in detail, revealing three layers: a hard, thin outer crust covering a foamy layer underneath, and piles of hollow tubular structures in the core.

The scientists also noted that the parts of the fungus were as strong as plywood, pine or leather, but were also lighter than those materials. This combination is not usually associated with the fleshy part of such a mushroom.

The researchers found that the hollow tubes that make up the bulk of the fruiting bodies of F. fomentarius can withstand stronger forces than the foam layer and not experience major displacement or deformation.

This is not so surprising: this mushroom must be built to withstand the strict changes of the seasons, as well as the branches of trees falling from above. It is this strength that could inspire new synthetic materials.

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