Sequences with minimal block growth II

1974 ◽  
Vol 8 (4) ◽  
pp. 376-382 ◽  
Author(s):  
Ethan M. Coven
Keyword(s):  
1973 ◽  
Vol 7 (2) ◽  
pp. 138-153 ◽  
Author(s):  
Ethan M. Coven ◽  
G. A. Hedlund
Keyword(s):  

1974 ◽  
Vol 8 (4) ◽  
pp. 309-315 ◽  
Author(s):  
Michael E. Paul
Keyword(s):  

2010 ◽  
Vol 32 (3) ◽  
pp. 750-754 ◽  
Author(s):  
Ying-na Deng ◽  
Hong Zhu ◽  
Wei Liu ◽  
Xiao-dan Zhang

2009 ◽  
Vol 8 (9) ◽  
pp. 856-865 ◽  
Author(s):  
Cedo M Bagi ◽  
James Christensen ◽  
Darrel P Cohen ◽  
Walter G Roberts ◽  
Dean Wilkie ◽  
...  

2016 ◽  
Vol 37 (7) ◽  
pp. 2099-2130
Author(s):  
MICHAEL DAMRON ◽  
JON FICKENSCHER

In 1985, Boshernitzan showed that a minimal (sub)shift satisfying a linear block growth condition must have a bounded number of ergodic probability measures. Recently, this bound was shown to be sharp through examples constructed by Cyr and Kra. In this paper, we show that under the stronger assumption of eventually constant growth, an improved bound exists. To this end, we introduce special Rauzy graphs. Variants of the well-known Rauzy graphs from symbolic dynamics, these graphs provide an explicit description of how a Rauzy graph for words of length $n$ relates to the one for words of length $n+1$ for each $n=1,2,3,\ldots \,$.


2003 ◽  
Vol 31 (2) ◽  
pp. 420-423 ◽  
Author(s):  
C.J. Bacchi ◽  
N. Yarlett ◽  
L.M. Weiss

Members of the phylum Microspora are all obligate intracellular parasites. Little is known concerning metabolic pathways in these parasites, some of which pose serious problems in immunocompromised patients. We investigated polyamine metabolism in the systemic pathogen Enterocytozoon cuniculi using intact pre-emergent spores, and cell-free preparations. We found both polyamine synthetic and interconversion pathways to be operative, as evidenced by conversion of ornithine into polyamines, and production of spermidine from spermine by pre-emergent spores. Recent developments in the antitumour field have highlighted the ability of bis-ethylated polyamine analogues to reduce polyamine levels and block growth of tumour cells. In light of enhanced polyamine uptake in Enc. cuniculi, we have begun to study bis-aryl 3-7-3 and bis-ethyl oligoamine analogues as leads for chemotherapy of microsporidia.


Nano Letters ◽  
2002 ◽  
Vol 2 (2) ◽  
pp. 83-86 ◽  
Author(s):  
Yiying Wu ◽  
Rong Fan ◽  
Peidong Yang

2002 ◽  
Vol 06 (18) ◽  
pp. 663-669

Gene Variant Contributes to Anorexia Nervosa. Apoptosis Gene Found. Australia Uncovers Genetic Trigger for Asthma. Chinese Scientists Found New Gene for Liver Cancer. Cloned Cattle to Produce Human Antibodies. Elements of Gene Expression Found in Circadian Night. New Technique to Treat Artery Inflammation. Way to Block Growth of Brain Tumor Cells Found. Scientists Hail Health Benefits of Oilseeds. Auckland University in Osteoporosis Drug Deal. Cannabis and Tobacco Equally Bad for Health. Dental Filling that Strengthens Damaged Teeth.


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