Before the formation of the Central American Isthmus, there was a Central American Peninsula.Here we show that southern Central America existed as a peninsula as early as 19 Ma, based on new lithostratigraphic, biostratigraphic and strontium chemostratigraphic analyses of the formations exposed along the Gaillard Cut of the Panama Canal.Land mammal
Self-supervised learning has great potential for the remote sensing domain, where unlabelled observations are abundant, but labels are hard to obtain.This work leverages unlabelled multi-modal remote sensing data for augmentation-free contrastive self-supervised learning.Deep neural network models are trained to maximize the similarity of latent re
Abstract It is well known that a wireless body area network (WBAN) is a special proposed wireless sensor network (WSN) that can assist in monitoring physiological signals for the evaluation and planning of patient treatment.One of the most challenging issues for WBANs is communication reliability, with acceptable communication efficiency and packet
Li-Yan Zhang, 1,* Xiao-Yang Ma, 2,* Jun Lin, 3 Wen-Hu Liu, 4 Wang Guo, 4 Le Yin, 4 Shi-Xiang Wang, 3 Xia Li, 5 Jing Li, 5 Li-Li Jin, 6 Ze-Long Tian, 7 Yi-Tong Du, 1 Hou-Zhen Tuo 1 1Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, People’s Republic of China; 2Department of Neurology, Beijing Ditan Hosp