Vesicles containing a purified shark rectal gland (sodium + potassium)-activated adenosine triphosphatase-(NaK ATPase) were prepared by dialyzing for 2 days egg lecithin, cholate, and the NaK ATPase purified from the rectal gland of Squalus acanthias. These vesicles were capable of both Na+ and K+ transport. Studies of K+ transport were made by measuring the ATP-stimulated transport outward of ...

In this paper, we propose the design of a scalable reliable mobile multicast scheme—SRMoM. SRMoM uses well-known Scalable Reliable Multicast (SRM) in the wired networks and a NAK-based ARQ with adaptive Forward Error Correction (AFEC) in the wireless networks. In AFEC, the probability of needing retransmission of original multicast packets after FEC recovery is selectable. This selective proper...

We determined the ability of mixed gangliosides (16% GD1b, 19% GT1b, 21% GM1, and 40% GD1a) and individual gangliosides GM1 and GD1b to modulate the NV-PLA2 induced human erythrocyte ghost membrane damage. CM-Sephadex purification of crude Naja naja venom yielded eight peaks of which peak VII, a major phospholipase A2 (NV-PLA2) accounted for 22% of the total protein recovered and 8% of the tota...

This paper proposes a scalable and reliable multicast communication service based on active networking for mobile hosts in cellular environments. This service uses resources ooered by active nodes in order to overcome problems in mobile multicast communication such as: high error-bit rates over wireless links, losses due to handoos, mobile host location, and NAK implosion. Simulations were carr...