A novel approach to molecular separations is investigated using a technique termed droplet-based isoelectric focusing. Drops are manipulated discretely on a superhydrophobic surface, subjected to low voltages for isoelectric focusing, and split-resulting in a preparative separation. A universal indicator dye demonstrates the generation of stable, reversible pH gradients (3-10) in ampholyte buff...

The principle of the model is a dissection of an idealized invasion process into invasion steps and stages (INVASS model). The basic structure can be depicted as a staircase: five invasion stages (0 to 4) are connected through four invasion steps (1 to 4). The stages describe the status of the species during the invasion, whereas the steps illustrate the processes. The invasion steps summarize ...

The technique previously applied to serum can, with minor modifications, be applied to cerebrospinal fluid. Good protein patterns have been obtained and similarities as well as differences have been demonstrated between cerebrospinal fluid and serum. The patterns obtained should prove useful in neurological diagnosis.

In order to examine the diversity of antibody light chains, we have developed an analytic isoelectric focusing procedure which permits the routine analysis of L chains from antibodies raised in individual mice. We have used this technique to demonstrate that the light chains of IgM and IgG anti-group A streptococcal antibodies raised in SWR mice are probably shared. Interestingly, numerous ligh...

Providing seamless QoS guarantees for multimedia services is one of the most critical requirements in the mobile Internet. However, the effects of host mobility make it difficult to provide such services. The next steps in signaling (NSIS) was proposed by the IETF as a new signaling protocol, but it fails to address some mobility issues. This paper proposes a new QoS NSIS signaling layer protoc...

The General Internet Signaling Transport (GIST) protocol was specified by the IETF in order to provide a generic transport protocol for signaling messages. A group at the Institute of Telematics implemented the GIST protocol and evaluated it already in smaller testbed setups. An evaluation of GIST in large-scale scenarios can, however, only be accomplished by using a simulation framework. In th...

Resource reservations in the Internet become more and more important with the advent of real-time multimedia services like Voiceover-IP and IPTV. At the same time we see an increasing interest in accessing Internet services by using mobile devices. In this paper we describe how Quality-of-Service guarantees can be achieved in mobile environments across different domains using the Next Steps in ...

This document reviews some of the existing QoS signaling protocols for an IP network. The goal here is to learn from them and to avoid common misconceptions. Further, we need to avoid the mistakes during the design and the implementation of any new protocol in this area. Manner et al Expires December, 2003 [Page 1] Internet-Draft Analysis of QoS Signaling June 2003 Changes since -01 Merged with...