The critical temperature Tc and the critical current density Jc determine the limits to large-scale superconductor applications. Superconductivity emerges at Tc. The practical current-carrying capability, measured by Jc, is the ability of defects in superconductors to pin the magnetic vortices, and that may reduce Tc. Simultaneous increase of Tc and Jc in superconductors is desirable but very d...

For any practical superconductor the magnitude of the critical current density, Jc, is crucially important. It sets the upper limit for current in the conductor. Usually Jc falls rapidly with increasing external magnetic field, but even in zero external field the current flowing in the conductor generates a self-field that limits Jc. Here we show for thin films of thickness less than the London...

A ferromagnetic sheath around a superconducting wire results in an unusual transport Jc(H). For the field perpendicular to the current, there is a plateau in Jc(H) at high temperatures and intermediate fields. This plateau develops into a peak at lower temperatures—resembling a ‘peak effect’. A model based on cancellation of the self-field of the current and the external field within the iron s...

We study the critical depinning current Jc versus the applied magnetic flux Phi, for quasiperiodic (QP) chains and 2D arrays of pinning centers placed on the nodes of a fivefold Penrose lattice. In QP chains, the peaks in Jc(Phi) are determined by a sequence of harmonics of the long and short segments of the chain. The critical current Jc(Phi) has a remarkable self-similarity. In 2D QP pinning ...

Jellyfish collagen (JC) was extracted from jellyfish umbrella and hydrolyzed to prepare jellyfish collagen hydrolysate (JCH). The effects of JC and JCH on UV-induced skin damage of mice were evaluated by the skin moisture, microscopic analyses of skin and immunity indexes. The skin moisture analyses showed that moisture retention ability of UV-induced mice skin was increased by JC and JCH. Furt...

The effects of temperature and salinity on fatty acid synthetic activities in the oyster protozoan parasite, Perkinsus marinus, were tested in vitro at 10, 18 and 28 jC in a salinity of 28 psu and 14, 20 and 28 psu at a temperature of 28 jC using C sodium acetate as a substrate. Salinity treatments exhibited few treatment effects, but temperature significantly affected cell proliferation, fatty...

polyomaviruses may cause human disease, particularly in immunocompromised hosts. jcv, one of the members of polyomaviridae family, is the causative agent of the neurological disease progressive multifocal leukoencephalopathy (pml), which occurs mostly in immunocompromised patients. progressive multifocal leukoencephalopathy (pml) is a progressive demyelinating disorder of the central nervous sy...