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IMAGE: The top image is a cross-section of the organ of Corti from a 12-month-old mouse (homozygous Nox3-Cre+/+;tdTomato) and the bottom image is an illustration of this. Red fluorescent proteins (tdTomato),. view more
Credit: Takehiko Ueyama
Professor UEYAMA Takehiko (Biosignal Research Center, Kobe University) and the inner ear research group (Kyoto Prefectural University of Medicine) have identified the cell types in the inner ear cochlea ( 1) responsible for the production of superoxide (Nox3 2-expressing cells). They achieved this by using genetically modified mice that they developed. The researchers discovered that these superoxide-producing cells increase in number in response to aging, noise damage, and ototoxic drugs, thus causing age-related, noise-induced and drug-induced hearing loss. In addition, they were able to suppress the onset of these three types of acquired hearing loss in genetically modified mice with no Nox3 expression (Nox3 knockou
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IMAGE: Infants could identify two faces when the temporal interval between them was 800 ms, but they could identify only the first target (overlooked the second target) when the separation was. view more
Credit: Chuo University
It has previously been reported that human visual system has a temporal limitation in processing visual information when perceiving things that occur less than half a second apart. This temporal deficit is known as attentional blink and has been demonstrated in a large number of studies. These studies reported that adults could recognize two things when these two were temporally separated over 500 ms, but adults overlooked the second thing when the temporal interval was less than 500 ms. Recently, this attentional blink phenomenon has been observed in even preverbal infants less than one-year old.
New Imaging Technique Accurately Estimates Motion of Individual Objects
Since the advent of photography in the mid-19
th century, imaging technology has certainly come a long way.
Image Credit: hxdbzxy/Shutterstock.com
Today, several sophisticated cameras meant for challenging applications depend on mechanisms that are significantly different from those seen in consumer-oriented devices. One of these advanced cameras uses the so-called “single-photon imaging,” which can yield highly superior results in fast dynamic scenes and dark conditions. But it is not known how this single-photon imaging is different from traditional imaging.
When capturing an image with a standard CMOS camera, similar to the ones used on smartphones, the camera sensor is exposed to a huge influx of photons at the time of a predefined exposure time. Within the sensor grid, every pixel produces an analog value that relies on the number of photons that strike that specific pixel during the exposure.
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On March 26, 2021, the “Sweden-Japan Academic Network” open webinar, co-hosted by the Japan Society for the Promotion of Science (JSPS) Stockholm Office, the Royal Swedish Academy of Sciences (KVA) known as the organization awarding the Nobel Prizes, and the Embassy of Japan in Sweden, took place to memorialise the launch of the Kyushu University Stockholm Liaison Office.
More than 100 researchers and students mainly from Swedish and Japanese universities participated in the webinar. Dan Larhammar, president of the Royal Swedish Academy of Sciences, delivered an opening address followed by Shigeyuki Hiroki, ambassador of Japan to Sweden, and Tatsuro Ishibashi, president of Kyushu University. Chihaya Adachi, distinguished professor of Kyushu U and a world-leading researcher in the field of Organic Electro-Luminescence (OEL), represented Japan at the webinar, giving a keynote lecture on his research activity. From the Swedish side, Olle Inganäs, emeritus professor of Link�