A research team, including Professor Naoto Tomioka of Okayama University of Science, has uncovered new genetic evidence challenging the long-standing "dual-structure model" of Japanese ancestry. By analyzing ancient genomes from individuals spanning the Jomon, Yayoi, and Kofun periods (9000 B.P. to 1300 B.P.), the study identified three distinct genomic groups contributing to the ancestry of modern Japanese people. Their findings, published in Science Advances, suggest two waves of migration from Northeast and East Asia during the Yayoi and Kofun periods, integrating with the indigenous Jomon population. This research introduces a "triple-structure model" of Japanese ancestry and aligns with modern genomic studies. However, further analysis is needed to reinforce these conclusions.

Chemists at Emory University invented a reaction to streamline the total synthesis of a compound, phaeocaulisin A, extracted from a plant used for centuries in traditional Chinese medicine. In laboratory dish experiments conducted with biologists at Winship Cancer Institute  of Emory University, the researchers showed the compound’s efficacy against HER2-positive breast cancer cells and triple-negative breast cancer cells. An analogue of the compound the chemists constructed boosted this efficacy. 

Ocean Science Journal Special Issue Highlight: Safety Management of Marine Biotoxins in South Korea

BALTIMORE, MD, January 13, 2025 – A groundbreaking new study in the INFORMS journal Transportation Science reveals the severe and far-reaching consequences of Russia’s full-scale invasion of Ukraine on global food security. The research highlights an urgent need to address disruptions in the transportation of Ukrainian grains, which have caused dramatic price spikes and worsened food insecurity worldwide, particularly in vulnerable regions such as the Middle East and North Africa.