A glance at the frog’s skin can say what kind of blood the amphibia has, the blood composition accounting for frog’s capability to get on alongside human beings. The research by the Ural ecologists has been supported by the Russian Foundation for Basic Research.
The crucial importance for the frog is in the light strip on the back along the spinal column. V.L. Vershinin, Doctor of Biology, specialist of the Institute of Plant and Animal Ecology, Ural Branch of Russian Academy of Sciences, has discovered close correlation between availability of the strip, composition of its blood elements and frog’s capability to adapt to urban environment.
The amphibia, the first surface vertebrates, are extremely dependent on the environment. Nevertheless, they can bear all “delights” of urbanization: contaminated water bodies, piped brooks and massive asphalt pavement, so the researchers are trying to understand how the frogs can succeed in that. The blood, one of the most dynamic systems, is the quickest to react to any functional changes taking place in the organism. V.L. Vershinin started his effort from investigation of hematologic properties. In Ekaterinburg, the scientist has spent several years investigating the blood of three species of frogs: moorfrog (Rana arvalis), European common frog (Rana temporaria) and waterfrog (Rana ridibunda). Amphibia were caught within the first two weeks of surface life in the vicinity of water bodies, where tadpoles had developed. Depending on the level of man’s impact, the city was divided into four zones. The first zone, encumbered by multistorey blocks of flats, is almost deprived of lawns and water bodies, and the fourth zone – is a forest park, i.e. the recreaton zone of the citizens.
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University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
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Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
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Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
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