Skyrmion Motion Understanding skyrmion motion is essential for the efficient operation of skyrmionic devices. In article number 2203275, Chanyong Hwang, Kyoung-Whan Kim, Albert Min Gyu Park, Kab-Jin and co-workers uncover a universal scaling behavior in current-driven skyrmions. The topology shape interface drags skyrmions causes them to show hopping properties distinct from creep expected magn...

OBJECTIVE YKL-40 (human cartilage glycoprotein 39) is one of the most abundant proteins secreted by cultured chondrocytes. The objectives of the present study were to identify regulators of YKL-40 production in cartilage and chondrocytes and to map the localization of YKL-40 in chondrocytes. METHODS Human articular chondrocytes and cartilage explants (obtained from subjects at autopsy, from a...

We have partially purified replicating simian virus 40 (SV40) chromosomes in a form which allows continued DNA synthesis in vitro. We first prepare a soluble DNA-synthesizing system from SV40-infected monkey cells and then sediment the components through a neutral sucrose gradient of extremely low ionic strength. Replicating SV40 chromosomes isolated from such gradients are capable of continuin...