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New Results on the Pseudoredundancy [article]

Zihui Liu, Jens Zumbrägel, Marcus Greferath, Xin-Wen Wu
2014 arXiv   pre-print
In particular, we give several upper bounds on the pseudoredundancies of certain codes with repeated and added coordinates and of certain shortened subcodes.  ...  By using the value assignment of Chen and Kløve we present new results on the pseudocodeword redundancy of binary linear codes.  ...  the position corresponding to some point in U 2 , and the other class is the ones with zero coordinate in the position corresponding to any point in U 2 (note that U 2 = ∅ in the representing-independent  ... 
arXiv:1410.1627v1 fatcat:zxezwai5c5eghh6v2kplksbjni

On the Pseudocodeword Redundancy of Binary Linear Codes [article]

Jens Zumbrägel, Vitaly Skachek, Mark F. Flanagan
2012 arXiv   pre-print
Also, upper bounds on the pseudocodeword redundancy for some families of codes, including codes based on designs, are provided.  ...  Furthermore, comprehensive results are provided on the cases of cyclic codes of length at most 250 for which the eigenvalue bound of Vontobel and Koetter is sharp.  ...  ACKNOWLEDGMENTS The authors are indebted to the anonymous reviewers for their worthwhile suggestions and recommendations, which significantly improved the exposition of the work, and also to Pascal Vontobel  ... 
arXiv:1103.3641v2 fatcat:nfbi7dn62va63deb57ejl6y6ty

On the Pseudocodeword Redundancy [article]

Jens Zumbragel, Mark F. Flanagan, Vitaly Skachek
2010 arXiv   pre-print
We also provide bounds on the pseudocodeword redundancy for some families of codes, including codes based on designs.  ...  We define the AWGNC, BSC, and max-fractional pseudocodeword redundancy of a code as the smallest number of rows in a parity-check matrix such that the corresponding minimum pseudoweight is equal to the  ...  ACKNOWLEDGEMENTS The authors would like to thank Nigel Boston, Christine Kelley, and Pascal Vontobel for helpful discussions. This work was supported in part by the Science Foundation Ireland  ... 
arXiv:1001.1705v1 fatcat:cedhiqfwyrar3ddjhxkv5x7re4

Long-lasting memory from evanescent networks

Aryeh Routtenberg
2008 European Journal of Pharmacology  
One such positive feedback mechanism is 'cryptic rehearsal' typically referred to as 'noise' or 'spontaneous' activity.  ...  To prevent promiscuous network formation, the regulated positive feedback maintains the altered state given specific decay kinetics for the PTM.  ...  Acknowledgments During the preparation of this paper, the author was Principal Investigator of MH65436 and Director of the Training Grant TG MH67564.  ... 
doi:10.1016/j.ejphar.2008.02.047 pmid:18367168 pmcid:PMC2861994 fatcat:ddrjxlp4grd53knlbkysjjmahy

The substrate for long-lasting memory: If not protein synthesis, then what?

Aryeh Routtenberg
2008 Neurobiology of Learning and Memory  
Thus, a unique feature of the PTM model is that longevity of information storage is achieved not by stability of the synaptic mechanism, but by impermanent pseudoredundant circuits.  ...  Thus, synapses are 'meta-stabilized' by regulated feedback mediated by the circuit in which the synapse is embedded.  ...  Note that the PTM model by restricting change to proteins already present at the synapse avoids the issues of complex trafficking.  ... 
doi:10.1016/j.nlm.2007.10.012 pmid:18162421 pmcid:PMC3286632 fatcat:abq2islkafhjxgtjqonj7ldlk4

Exploration of AWGNC and BSC Pseudocodeword Redundancy [article]

Jens Zumbragel, Mark F. Flanagan, Vitaly Skachek
2010 arXiv   pre-print
Also, comprehensive results are provided on the cases of cyclic codes of length at most 250 for which the eigenvalue bound of Vontobel and Koetter is sharp.  ...  This paper provides new results on the AWGNC, BSC, and max-fractional pseudocodeword redundancies of codes. The pseudocodeword redundancies for all codes of small length (at most 9) are computed.  ...  ACKNOWLEDGMENTS The authors would like to thank Nigel Boston, Christine Kelley and Pascal Vontobel for helpful discussions.  ... 
arXiv:1005.3486v1 fatcat:5syloiijh5hzpahdsmlaquqosq

Pseudoredundant vacuum energy

Puneet Batra, Kurt Hinterbichler, Lam Hui, Daniel Kabat
2008 Physical Review D  
The observed vacuum energy arises when the redundancy is explicitly broken, say by a non-minimal coupling to curvature.  ...  Such models could be statistically favored in the string landscape.  ...  To explain this point, let us note that in a simple model of flux compactification one has the potential [7, 8] V ∼ −V 0 + N i=1 c i n 2 i .  ... 
doi:10.1103/physrevd.78.043507 fatcat:wyewb6gkdrcand5wpizdo6ntwu

Cytomotive actins and tubulins share a polymerisation switch mechanism conferring robust dynamics [article]

James Mark Wagstaff, Vicente José Planelles-Herrero, Grigory Sharov, Aisha Alnami, Frank Gerhard Kozielski, Emmanuel Derivery, Jan Löwe
2022 bioRxiv   pre-print
We sought to examine the basis of cytomotivity via structural studies of the polymerisation cycles of actin and tubulin homologues from across the tree of life.  ...  Some filament-forming proteins couple the hydrolysis of nucleotides to their polymerisation cycle, thus powering the directed movement of other molecules. These filaments are termed cytomotive.  ...  deposited in the PDB.  ... 
doi:10.1101/2022.09.08.507146 fatcat:klcxhslpovel5lbbvdbe33qnum

Exploration of AWGNC and BSC Pseudocodeword Redundancy

Jens Zumbrägel, Mark Flanagan, Vitaly Skachek
unpublished
Also, comprehensive results are provided on the cases of cyclic codes of length at most 250 for which the eigenvalue bound of Vontobel and Koetter is sharp.  ...  This paper provides new results on the AWGNC, BSC, and max-fractional pseudocodeword redundancies of codes. The pseudocodeword redundancies for all codes of small length (at most 9) are computed.  ...  ACKNOWLEDGMENTS The authors would like to thank Nigel Boston, Christine Kelley and Pascal Vontobel for helpful discussions.  ... 
fatcat:r4tji5ke7bgale7p7srb2ap2my

Implementing finite impulse response (FIR) low pass filter (LPF) with different number representations [article]

Miao Li, University Of Canterbury
2016
Then implementing the FIR LPF filter with the different number system to find out the influence of coefficients quantization on the stopband attenuation.  ...  As the SPT number representation is also related to the Hamming weight K, the probability density distribution changes with varies the value of the K.  ...  ACKNOWLEDGEMENTS My study of Master degree at the University of Canterbury has been full of challenging. I have to thank many people who has helped me during my research.  ... 
doi:10.26021/2603 fatcat:ejq7vuaof5dv3hokm5abvolgy4