Free technical library. Articles from the journal Science and Life, 2008

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Contents of journals with annotations / Journal of Science and Life

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Journal of Science and Life

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Alphabetical list articles with annotations from journals published in 2008 in the journal Science and Life:

70 years at the Arctic Circle. The second youth of the White Sea biological station

IPP-27 under the constellation of the Southern Cross (International Jigsaw Meeting)

Non/fiction No. 9

Uragus sibiricus

And Vaska listens and eats! Rhetoric, Or the art of speaking as a path to success

And if you sing, or maybe bark

And we ourselves made a cross-sense

Aviation Science: Looking to the Future

Automotive gasolines with bioethanol

Academician Vladimir Kolesnikov: steel threads leading to the future

Academician Vladimir Kotlyakov: When the ice melts from love

Academician Geliy Zherebtsov: who carries the Siberian Cross?

Academician Mikhail Kuzmin: a look into the depths of Baikal

Alexander Isaev: what is the Russian forest making noise about?

Diamonds diagnose diseases

Alferov Foundation named the Laureate - 2007

Amino acids - peptides - drugs. Notes from the Congress of Pharmacologists

April. We sow tomatoes

archeology photography

Astrology and pseudoscience

Atlantis hold the sky. A new look at the driving forces of the continental moisture cycle

Grandma's wardrobe and mother's wardrobe

Bacteria make polymers

Barabashka, brownie, he is Kuzya

Poor Knight aka French Toast (Hurry Breakfast)

Unknown boats in the river of time

Security in the sky is born on earth

Birch bark windows to the past

Bermuda Triangle

Business needs science

A noble cause for noble metals

Palefaces and redskins

The brilliance and poverty of astrology

Bogorodskaya toy

Botulinum toxin in cosmetology - poison or medicine?

A new copy of the Novgorod Primary Chronicle was discovered in Berlin

In the western skerries of the polar Kovdozero

Only culture remains in history, the rest burns out. Ancient Christian temples of the Caucasus

In a world of polarized light

In the sky - a nuclear reactor

Into the sky without leaving the ground

Looking into the depths of the seabed

Vikings, Varangians, Russia

virtual tunnels. How the metro was inventoried

Vortices - from the molecule to the Galaxy

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Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Ultrasonic tweezers move living cells 13.07.2012

Bioengineers and biochemists at the University of Pennsylvania have developed a miniature ultrasound device capable of capturing and moving single cells and tiny living organisms. The coin-sized device can be used to work with live samples such as blood cells or bacteria. Using a new device called acoustic tweezers, scientists have already been able to manipulate roundworm (Caenorhabditis elegans) 1 mm long. This organism is an important model for the study of several human diseases.

Acoustic tweezers are also capable of manipulating living cells, which are essential to many areas of basic biomedical science. The device is based on the use of a piezoelectric material that vibrates under electrical voltage. Vibrations induce surface acoustic waves in the liquid medium around the cell culture. With simple electronics, acoustic waves can be manipulated and organic and inorganic materials can be moved.

The main advantage of acoustic tweezers is their harmlessness to living cells. Currently, scientists use lasers to manipulate such samples. However, they consume 10 million times more energy and can heat up and damage cells.

Acoustic tweezers turned out to be very versatile: with its help, you can control both one particle and tens of thousands. For example, ultrasonic tweezers can place drugs directly on a bacterium and at the same time exert pressure on its cell wall. It can also be used to sort blood cells and cancer cells.

Currently, the size of objects that can be moved with acoustic tweezers ranges from micrometers to millimeters. The developers note that when using higher frequencies, it will be possible to move nano-sized objects.

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