Motohiro Take

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Midkine (MK) is a heparin-binding growth/differentiation factor with a molecular weight of 13 kDa, and is structurally unrelated to fibroblast growth factors (FGF). We studied MK-binding proteins in order to clarify the action mechanism of MK. A 100-kDa protein was identified in PYS-2, 3T3, and L cells as an MK-binding protein by a ligand blot experiment.(More)
MK is a gene that is activated by retinoic acid in embryonal carcinoma (EC) cells and is expressed temporarily during the mid-gestation period of mouse embryogenesis. Midkine, the product of the gene is a novel heparin-binding growth/differentiation factor with neurite outgrowth and neurotrophic activities. The regulatory DNA element in the retinoic(More)
User authentication is widely used in many Internet services and is also used by automatic teller machines (ATMs). Recently, there has been an increase in the ATM password thefts using small charge-coupled device cameras. This study discusses a user authentication method in which graphical passwords, instead of alphanumeric ones as, are used to mitigate(More)
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