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Alphabetical list articles with annotations, from journals published in 2008 in the journal Chemistry and Life:
Avocado
Alexander Nikolaevich Engelhardt
Aluminum Hydrogen Energy
Peanut
archaic thinking
Astrology and logic
Astrology and logic or six questions for astrologers
Eggplant
Biofuels: new energy or fashion fad?
Biochemistry of Saint Valentine
The disease that was forgotten
big collision
big exit
The future of depleted uranium
In defense of nitrates and phosphates
In the mirror of the exam
They floated in the sieve
Return to the world of Aristotle
Possible exobiology
The Magic Flute: characters and performers
Hemoglobins - all-around squirrels
Alcoholism genes
Anthem of domestic chemistry
The Eye and the Sun, or the Photochemistry of Vision
GMOs on the loose
GM Foods: The Battle of Myth and Reality
Racing with obstacles in different directions
Walnut
Buckwheat
mushrooms
Group selection is back?
Humic raw materials - an alternative to biomass
Humic substances - a challenge to chemists of the XXI century
Two studies on the structure of the earth
Two smart ones. And the third
Deuterium life
Is it easier to divide than to add?
James Watson in Moscow
Diplodocus-II Diet
Chukotka diet
Diesel Rhapsody
Why do we need scents?
Long road to Mars
road chemistry
Dragon from the Longisquamid family
There is a contact!
Liquid crystals: cholesterics
Life in tears
Why was Giordano Bruno burned?
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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
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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
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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 Linear current regulators for LED lighting Infineon BCR3, BCR4
18.09.2016
Infineon's BCR series linear regulators are ideal for driving LED currents from 10mA to 250mA and are the best choice for low to medium power general purpose luminaires.
This solution is cost-effective, requires only a few additional components, and takes up minimal space on the device's circuit board. The light output level can be adjusted with an external resistor. PWM control is supported by a microcontroller or an external digital transistor.
Chips are presented in miniature packages SOT143, SOT343 and SC74. Among the high-power regulators, Infineon also produces the TLE4309G model in a package with a TO263 heatsink.
A feature of Infineon regulators is the negative temperature dependence of the output current, which allows you to extend the life of the LEDs by reducing the current through the LEDs at high ambient temperatures.
Applications for low-power drivers are advertising signs and letters, LED strips for decorative lighting, vehicle lighting, household appliances, architectural lighting, and much more.
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