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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.
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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. ... >>
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 ... >>
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Why does my head hurt after cold water?
02.05.2012
Many people from time to time experience short-term penetrating pain in the temples after eating ice cream or other heavily chilled food. Until now, experts were at a loss as to the causes of this phenomenon.
Earlier work showed that the described phenomenon is more often observed in people prone to migraines. Based on this, researchers at Harvard University suggested that some common mechanisms or causes may underlie these two pain sensations, and decided to use the phenomenon of “brain freeze” to study headache.
Headache is extremely difficult to study because its episodes cannot be monitored from start to finish. Migraine-causing drugs may have unwanted side effects, so their use for research purposes is unacceptable. At the same time, pain syndrome caused by cold food is very easy to initiate in the laboratory, and it also stops quickly, making it an ideal model for studying headache.
The scientists asked 13 healthy volunteers to sip ice-cold water through a straw so that it hits the sky, and raise their hands up when the sensation of pain in the temples appeared and disappeared.
Ultrasound monitoring of participants' cerebral circulation showed that the cause of pain in the temples was increased blood flow in the anterior cerebral artery, located in the middle of the brain behind the eyeballs, leading to an increase in the size of this vessel. With subsequent compensatory contraction of the artery walls, the pain disappeared.
Researchers believe that the expansion and subsequent rapid contraction of the artery are self-defense mechanisms of the brain. The brain is very sensitive to changes in temperature, therefore, when there is a threat of hypothermia, vasodilation provides additional flow of warm blood into its tissues. This is accompanied by fever and painful blood pressure. However, the vessel is reduced, preventing the increase in pressure to critical values.
If other types of headaches are based on similar mechanisms, then drugs that prevent vasodilation or contribute to their reduction can be used to combat them. However, scientists have yet to figure out this issue.
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