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How old is that microplastic? A new way to es

Researchers from Kyushu University and Asahi Kasei Corporation have developed a new way to estimate the age of microplastics found in the upper oceans. The new method combines plastic oxidation analysis with UV exposure and ambient temperature. By applying their new method to microplastics found across the North Pacific Ocean, the team found that the age of microplastics in nearshore regions ranged from 0 to 5 years old, whereas microplastics from offshore regions ranged from 1 to 3 years old. ....

Philippine Sea , Oceans General , Akihiro Kurima , Pacific Ocean , Aguru Yamamoto , Terumi Sakabe , Youichiroh Ide , Atsuhiko Isobe , Asahi Kasei , Kyushu University Research Institute For Applied Mechanics , Asahi Kasei Corporation , Health Care , Method Of Research , Asahi Kasei Group , Kyushu University , North Pacific , Marine Pollution , Professor Atsuhiko Isobe , Research Institute , Applied Mechanics , Rie Okubo , North Pacific Ocean , Atsuhiko Isobe Marine Pollution Bulletin , Fukuoka City , Drive Social Change , Integrative Knowledge ,

The Mathematics of Cell Boundary 'Ruggedness'

Researchers have uncovered the mathematical and biological mechanism behind the interdigitation at cell boundaries. These structures are commonly found in epithelial cells in tissues such as the kidneys and nasal glands, and is proposed to facilitate paracellular transport. The team found that the boundary dynamics show a 'push-and-pull' movement that exhibits scaling that can be reproduced by the Edward-Wilkinson model. They also found that myosin may be responsible for the nature of the dynamics. ....

Shintaro Miyazaki , Toshihiko Fujimori , Mikio Furuse , Kei Sugihara , Takashi Miura , Tetsuhisa Otani , Method Of Research , Kyushu University , Kyushu University Faculty Of Medical Sciences , Professor Takashi Miura , Medical Sciences , Fukuoka City , Drive Social Change , Integrative Knowledge ,