The taste of mother's milk. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

The taste of mother's milk

08.11.2008

Physiologists from the University of Copenhagen (Denmark) asked the question: does the taste of mother's milk change depending on what a woman ate? They gave 18 breastfeeding mothers swallow capsules of cumin, mint, banana and licorice extracts, and then at regular intervals they took samples of breast milk and chromatographed them for the corresponding compounds.

It turned out that the taste of a banana is kept in milk for no longer than an hour, the tastes of cumin and licorice reach a maximum after two hours, and then decline. The most stable taste of menthol: it appears after two hours and persists for another six hours. None of the compounds are kept in milk for more than eight hours.

It was previously known that the children of women who drank carrot juice during pregnancy or breastfeeding preferred baby food with carrot supplements.

<< Back: Copper for hospital 09.11.2008

>> Forward: Feathers in amber 07.11.2008

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

The threat of space debris to the Earth's magnetic field 01.05.2024

More and more often we hear about an increase in the amount of space debris surrounding our planet. However, it is not only active satellites and spacecraft that contribute to this problem, but also debris from old missions. The growing number of satellites launched by companies like SpaceX creates not only opportunities for the development of the Internet, but also serious threats to space security. Experts are now turning their attention to the potential implications for the Earth's magnetic field. Dr. Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics emphasizes that companies are rapidly deploying satellite constellations, and the number of satellites could grow to 100 in the next decade. The rapid development of these cosmic armadas of satellites can lead to contamination of the Earth's plasma environment with dangerous debris and a threat to the stability of the magnetosphere. Metal debris from used rockets can disrupt the ionosphere and magnetosphere. Both of these systems play a key role in protecting the atmosphere and maintaining ... >>

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Random news from the Archive

Soluble electronics suitable for implantation created 06.10.2012

American bioengineers have learned how to make "soluble" electronic implants that can be destroyed right inside the body without resorting to surgery, and published instructions for assembling such devices in an article in the journal Science. Engineers from Tufts University and the University of Illinois have developed a way to produce dissolvable electronics - devices that, after some time after implantation, break down and are excreted from the body on their own.

Natural silk became the basis of soluble electronic devices. Previously, the authors of the study learned how to create thin plates from it, which could be used as a substrate for wires and microchips. By varying the thickness and density of the silk, the engineers could control the rate of dissolution of the device in the body. To create wires, engineers proposed using metallic magnesium. Due to its high reactivity, it is practically not used in electronics. However, for the creation of soluble devices, reactivity proved to be an advantage. Because of it, thin metal films under the action of water oxidize over time and turn into ions.

The authors used ordinary silicon as semiconductors. Engineers have shown that its rather thin plates dissolve relatively quickly in the aquatic environment. For example, at a thickness of 100 nm, a wafer of silicon used by engineers dissolved at a rate of 4,5 nm per day.

Rogers and his colleagues have been trying for years to find the perfect recipe for dissolving electronics by experimenting with various organic and inorganic compounds. As scientists note, all components of such electronics - insulating substrates, conductors and semiconductors - should be freely excreted from the body without harming it. In addition, the finished device must be flexible and compact enough to be successfully implanted under the skin or in other parts of the human body.

Pure magnesium and its oxide are used as a "building material" for conducting electrodes and as a dielectric substrate for transistors. The thinnest strips of silicon are necessary for the operation of transistors and other semiconductor devices, including temperature sensors, microscopic photosensors and cameras. Molecules of the biopolymer, which forms the basis of silk, are used as a flexible and soluble shell of the device.

Bioengineers believe that the use of such devices is not limited to medicine and wearable electronics. In particular, cell phones and other portable electronic devices based on soluble components can be disposed of by burying in the ground or dissolving in water.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews