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Posted by bio_man   March 7, 2018   306 views

A dog searching for a lost child is typically given an item of clothing to smell. But what does that scent “look” like?

To find out, scientists tested 48 dogs, half of which had special police or rescue training. In a laboratory room, the scientists slid each dog’s favorite toy across the floor to a hiding place, while the dog waited in another room. One researcher then brought the dog to the testing room and pointed at the starting point of the odor trail and told the dog, “Look for it! Bring it!” In one trial, the dog found either its favored toy or a different item.

Many of the surprised dogs continued searching for the toy used to lay the scent trail—an indication that they had a mental representation of what they expected to find. Bot [ ... ]

Scent senses dogs
Posted in Research
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Malinois the best dog for investigations.
Posted on Mar 15, 2018 by BrianLim45
Posted by bio_man   March 7, 2018   323 views
A promising new drug called baloxavir marboxil (Xofluza) developed in Japan has been shown to stop the flu virus from spreading 24 hours after intake.

The drug interferes with influenza A and influenza B's main replication process instead of inhibiting the neuraminidase enzyme, as accomplished by previous drugs such as oseltamivir (Tamiflu) and zanamivir (Relenza). As shown in the illustration, viral neuraminidase sits on the surface of influenza viruses and enables it to be released once reproduced within the infected host cell.

Xofluza accomplishes its mode of action by inhibiting the cap-dependent endonuclease activity of the viral polymerase. It achieves this by inhibiting the process known as cap snatching, which is a mechanism expl [ ... ]

enzyme drug flu influenza Japan Asia
Posted in Research
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Posted by bio_man   March 5, 2018   478 views

The Tunguska event was a large explosion that occurred near the Tunguska River, in where is now Russia. The explosion occurred at an altitude of 5–10 kilometres (3–6 mi) by a stony asteroid that is believed to have burst in the air rather than hitting the surface.

Since the 1908 explosion, there have been an estimated 1,000 scholarly papers (mainly in Russian) published on the Tunguska explosion. In 2013, a team of researchers led by Victor Kvasnytsya of the National Academy of Sciences of Ukraine published analysis results of micro-samples from a peat bog near the blast epicenter showing fragments that may be of meteoric origin.

Estimates of the energy of the blast range from as low as three to as high as 30 megatons of TNT. The energy of th [ ... ]

Russia Explosion Tunguska Asteroid Comet
Posted in Others
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WOW!it's "FASCINATING!"I always heard that the 1908 explosion was also somehow effected by the intense"COLD" of the Sibrian landscape.
Posted on Mar 6, 2018 by cloveb
Posted by bio_man   February 28, 2018   643 views

The Soviet-built space probe, Venera 3, was the first spacecraft to ever land on another planet back on March 1st, 1966, after being launched on November 16, 1965 from Baikonur, Kazakhstan.

The mission of this spacecraft was to land on the Venusian surface. The entry body contained a radio communication system, scientific instruments, electrical power sources, and medallions bearing the State Coat of Arms of the U.S.S.R.

Unfortunately, the probe crash-landed on Venus, causing its communication systems to fail before it could return any information about the planet. The spacecraft impacted on the night side of Venus, near the terminator, around -20º to 20º N, 60º to 80º E.

The Venera program, however, would go on to successfully submit data f [ ... ]

Space Planets Venus Astronomy Venera Temperature
Posted in Discoveries
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Posted by bio_man   February 27, 2018   670 views

Ming the Clam, once the world's oldest animal, was killed at 507 years of age by scientists trying to determine its age in 2006.

Ming the Clam (1499–2006) is a nickname given to a specimen of the ocean quahog clam (Arctica islandica), that was excavated off the coast of Iceland in 2006 and whose age was calculated by counting annual growth lines in the shell.

Ming was the oldest individual animal ever discovered whose age could be accurately determined. The mollusc’s 507 year old life came to an end in 2006 when the British researchers – unaware of the animal’s impressive age – opened up its shell to examine it.

The clam was named Ming in reference to the Ming dynasty, during which it was born. Interestingly, the second oldest ocean quahog [ ... ]

Clam Mollusc Ming Dynasty Age Iceland
Posted in Discoveries
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what a weird animal. :-O
Posted on Feb 27, 2018 by cloveb
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