PURPOSE Our study develops decision rules to define appropriate intervals at which repeat tests might be indicated for commonly ordered laboratory tests for hospitalized patients. METHODS The final data set includes 5,632 adult patients admitted to the University of Virginia Hospital between July 1995 and December 1999. These patients had a hospital length of stay of five days or more and had...

BACKGROUND Pathology, imaging and other tests have an essential role in the diagnosis and screening for disease in medical practice. However, over-testing has recently emerged as a significant issue and has implications for the patient, doctor and health system. Vocational training is arguably the most critical period in the development of future patterns of clinical practice for the GP. This i...

In a ferromagnetic Ising system, domain pattern formation, i.e., phase-ordering, occurs after sudden quench. We propose the method to simulate formation dynamics by an machine. demonstrate that reproduces patterns similar those simulated Monte Carlo method. Moreover, same growth law is observed in proposed and

Decoupled rowwise ordering is an ordering scheme for 2-dimensional grids, which is tailored for preconditioning 5-point diierence equations arising from discretizations of partial diierential equations. This paper describes the ordering scheme and implementations of a conjugate gradient solver and SSOR preconditioners which use the decoupled rowwise and the red black ordering schemes on the CM-...

Logic programming has gained in popularity" in recent years. This style of programming, using Horn clauses to express procedural information, allows one to reason easily about the effects of executing program statements. We present a methodology for reasoning about the relationship between logic programs and their specifications, to help debug erronneous programs. To Mlow for debugging, the spe...

generally ordering policies are done by two methods, including fix order quantity (foq) and fix order period (fop). these methods are static and either the quantity of ordering or the procedure of ordering is fixing in throughout time horizon. in real environments, demand is varying in any period and may be considered as uncertainty. when demand is variable in any period, the traditional and st...

Group-theoretical methods are used to enumerate the structures of ordered perovskites, in which 1:2 and 1:3 ordering of B and B' cations is considered in combination with the ubiquitous BX6 (or B'X6) octahedral tilting. The cation ordering on the B-cation site is described by irreducible representations of the Pm3 m space group of the cubic aristotype: Lambda1 (k = 1/3,1/3,1/3) for the cation o...

This paper describes a hybrid BIST architecture for testing core-based systems together with a method for test time minimization. The approach uses test pattern broadcasting for both pseudorandom and deterministic patterns. To overcome the high complexity of the test time minimization problem we propose a fast algorithm to find an efficient combination of pseudorandom and deterministic test set...

The efficiency of pseudo-exhaustive test generation is strictly limited by the maximal number of inputs to be enumerated, since n inputs require a test length of 2n . In contrast to other approaches, the proposed self-test method also takes the fault model into account. In addition to the conventionally used structural circuit information, so-called "functional independencies" can be computed. ...

Configurations of adders and registers, which are available in tnany datapaths, can be utilized to generate pattems and to compact test responses. This paper unalyzes tlie patiern sequences produced by different types of accuriiulators and shows that they can achieve similar ,fault coverage as pseudo-random patterns. Corizpared to file well-known selftest tnethods that insert test registers, th...