Fish-friendly dentistry: New method makes oral research non-lethal
Peer-Reviewed Publication
Updates every hour. Last Updated: 18-May-2025 16:09 ET (18-May-2025 20:09 GMT/UTC)
Can we examine the teeth of living fish and other vertebrates in detail, repeatedly over time, without harming them?
Previously, small animals often had to be euthanized to obtain precise information, but now scientists have found a new way to humanely study detailed dental characteristics of vertebrates. This customizable method can be used for both living animals and museum specimens and has been published in the Journal of Morphology.
Researchers at the Okinawa Institute of Science and Technology (OIST) and their collaborators applied human dental impression techniques to study fish teeth in a species called Polypterus senegalus. This fish has been separated from other fish species for about 360 million years. Due to this long period of evolutionary isolation, Polypterus still has many primitive characteristics that provide important information on the early development of bony fish.
The research team led by Dr. Hojeong Jeon and Dr. Hyung-Seop Han of the Biomaterials Research Center at the Korea Institute of Science and Technology (KIST), along with Dr. Indong Jun from KIST Europe, has developed a novel stent surface treatment technology using laser patterning.
The research analyzes multiple heterogeneous characteristics of tasks and workers in a real spatial crowdsourcing environment.
This research explores the connotation and typical characteristics of immersive technologies, analyze their application scenarios in primary and secondary education, identify key issues in their implementation, and propose strategies for their widespread adoption.
For reusable rockets, the precision landing on Earth is very challenging. In atmospheric reentry flight, the rockets are subjected to disturbing conditions, mainly including engine thrust fluctuation, aerodynamic uncertainty, and winds, which severely decrease landing accuracy and fuel efficiency. Although the reusable rockets have achieved successful landing and recovery in recent years, the disturbance rejection issue of endoatmospheric powered descent guidance has not been systematically addressed in the field of advanced guidance and control, highlighting an important aspect of ongoing research.
We are pleased to announce the call for papers for the 14th Asia-Pacific Conference on Transportation and the Environment (APTE 2025), hosted by the School of Vehicle and Mobility, Tsinghua University, co-organized by Communications in Transportation Research, Journal of Intelligent and Connected Vehicles, and ETS-Data. The conference will be held from Aug. 9-11, 2025, in Hangzhou, China.