Despite the rapid development of knowledge it still remains fundamental that mistakes within the ABO and Rhesus systems are responsible for virtually all fatal mismatched transfusions. It therefore cannot be too highly stressed that the careful preliminary grouping of the bloods of all patients for transfusion is of prime importance, irrespective of whether there is a previous record of their b...

This writeup describes the models from two papers [1] and [2]. The model in [1] uses the throughput model of [2] for the congestion avoidance phase. There are three phases: connection establishment, Slow Start, Congestion avoidance. This is a model of the congestion control procedures implemented in the Reno version. Only results are provided in this paper. For a detailed derivation, see http:/...

For 30 years, Greenwald and Shulman’s (1973) psychological refractory period (PRP) study has been cited as evidence for perfect timesharing with two ideomotor (IM) compatible tasks. Recently, Lien, Proctor, and Allen (2002) failed to replicate their results and concluded that the use of two IM compatible tasks is neither necessary nor sufficient to eliminate the PRP effect. Greenwald (2003) sug...

Understanding multi-dimensional mechanism design. 1 The Model Let M = {1, . . . , m} be a finite set of agents. Every agent has private information, which can be multi-dimensional. This is called his type. The space from which an agent draws his type is called his type space. Let Ti denote the type space of agent i ∈ M . We assume Ti ⊆ R n for some integer n ≥ 1. Let T m = ×mi=1Ti. Also, denote...

The notion of “incompatibility” of system variables arose with quantum mechanics; it is inconceivable in classical physics. Two expressions of incompatibility from the earliest days of quantum theory are the uncertainty principle of Heisenberg (measurement of one variable causes uncontrollable disturbance in other variables) and Bohr’s “complementarity” (not all variables have simultaneous “rea...

Software products do not provide consumption benefit unless a hardware product is installed in advance. In the market with this software – hardware relationship, a software producer sometimes finds that it is profitable to make its product compatible with only a certain hardware product. This incompatibility decision is considered as a vertical foreclosure. The conditions under which vertical m...

We survey four variants of RSA designed to speed up RSA decryption and signing. We only consider variants that are backwards compatible in the sense that a system using one of these variants can interoperate with systems using standard RSA.

in order to prepare polyurethane elastomers with acceptable physical properties and good biocompatibility, novel polyurethane networks were synthesized via curing reaction of epoxy-terminated polyurethane prepolymers (eups) with hexamethylene diamine. eups were prepared from reaction of glycidol with nco-terminated polyurethanes (itps). itps were also synthesized from reaction of one equivalent...