A formal language description of one-d imensional cellu lar automata limit sets is given, and a series of examples illustrating several degrees of complexity are constructed. The undecidability of membership of a string in the limit set of a cellu lar automaton ru le is proven.

BACKGROUND Patients with end stage renal disease (ESRD) can be sustained with dialysis therapy. OBJECTIVES In this study, we followed up the effect of early acute and late acute rejections on survival rates of patients' grafts. PATIENTS AND METHODS We investigated the timing and frequency of acute rejection episodes related to long-term patient-graft survival in Taleghani hospital between 1...

Inhaled heparin has been shown to inhibit allergic bronchoconstriction in sheep that develop only acute responses to antigen (acute responders) but was ineffective in sheep that develop both acute and late airway responses (LAR) (dual responders). Because the antiallergic activity of heparin is molecular-weight dependent, we hypothesized that heparin-derived oligosaccharides (<2, 500) with pote...

Therapeutic options to cure advanced, recurrent, and unresectable thymomas are limited. The most important factor for long-term survival of thymoma patients is complete resection (R0) of the tumor. We therefore evaluated the response to and the induction of resectability of primarily or locally recurrent unresectable thymomas and thymic carcinomas by octreotide Long-Acting Release (LAR) plus pr...

This study documents the complete larval development of the Monkey River Prawn Macrobrachium lar using a new greenwater rearing technique. Approximately 6,000 larvae were reared for 110 days at an initial stocking density of 1 ind./6 L. Salinity at hatch was 10 ± 2 ppt and progressively increased to 30 ± 2 ppt until decapodids had metamorphosed. Temperature was maintained at 28 ± 0.5°C, pH at 7...

Evidence from the Finnish Twin Registry (e.g., Rose et al., 1988) shows that adult monozygotic (MZ) twins are more similar, within pairs, in personality if the cotwins are presently cohabiting or in frequent contact than if they are seldom in contact. Results of a follow-up study led Kaprio et al. (1990) to conclude that "'changes in social contact between monozygotic cotwins precede (and causa...

The first line of treatment for active acromegaly is still neurosurgery followed by radiotherapy. Octreotide (1), slow-release (SR) lanreotide (2) and octreotide LAR (3) are currently administered before surgery or in patients in whom surgery and/or radiotherapy have failed to restore normal growth hormone (GH)/insulin-like growth factor-I (IGF-I) levels. Cozzi et al. (4) have recently shown th...