fMRI foundation models increasingly aggregate heterogeneous data across brain states, cohorts, and acquisition settings, yet pretraining domains are commonly treated as a flat mixture and downstream tasks are adapted independently. We study whether measured learning relations can organize both stages without modifying...
Jun-Feng Xia, Wen-Hao Ye, Jun-Xiang Zhang et al.· 1 citation
Recent fMRI foundation models differ substantially in the spatial scale at which they represent brain activity. ROI- and connectivity-based models are efficient but coarse, whereas voxel-level models preserve fine-grained spatial structure but require specialized 3D/4D architectures and costly fMRI-specific pretraining...
Mo Wang, Wen-Hao Ye, Zi-Han Ning et al.· 0 citations
Iron(II)/2-oxoglutarate-dependent (Fe/2OG) enzymes catalyze consecutive C-C bond formations to assemble complex heterobicyclic ring systems and generate three new stereocenters in piperazine alkaloids helvamide B and the arizonamides through C(sp3)-H activation─a transformation that remains challenging in synthetic che...
Shengbin Zhou, Jia-Peng Zhang, Jia-Yu Zuo et al.· Journal of the American Chem...· 0 citations
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