Fast Mining of Non-derivable Episode Rules in Complex Sequences

Author(s):  
Min Gan ◽  
Honghua Dai
2018 ◽  
Author(s):  
Justin Eilertsen ◽  
Santiago Schnell

<div>As a case study, we consider a coupled enzyme assay of sequential enzyme reactions obeying the Michaelis--Menten reaction mechanism. The sequential reaction consists of a single-substrate, single-enzyme non-observable reaction followed by another single-substrate, single-enzyme observable reaction (indicator reaction). In this assay, the product of the non-observable reaction becomes the substrate of the indicator reaction. A mathematical analysis of the reaction kinetics is performed, and it is found that after an initial fast transient, the sequential reaction is described by a pair of interacting Michaelis--Menten equations. Timescales that approximate the respective lengths of the indicator and non-observable reactions, as well as conditions for the validity of the Michaelis--Menten equations are derived. The theory can be extended to deal with more complex sequences of enzyme catalyzed reactions.</div>


2018 ◽  
Author(s):  
Justin Eilertsen ◽  
Santiago Schnell

<div>As a case study, we consider a coupled enzyme assay of sequential enzyme reactions obeying the Michaelis-Menten reaction mechanism. The sequential reaction consists of a single-substrate, single enzyme non-observable reaction followed by another single-substrate, single enzyme observable reaction (indicator reaction). In this assay, the product of the non-observable reaction becomes the substrate of the indicator reaction. A mathematical analysis of the reaction kinetics is performed, and it is found that after an initial fast transient, the sequential reaction is described by a pair of interacting Michaelis-Menten equations. Timescales that approximate the respective lengths of the indicator and non-observable reactions, as well as conditions for the validity of the Michaelis-Menten equations are derived. The theory can be extended to deal with more complex sequences of enzyme catalyzed reactions.</div>


2011 ◽  
Vol 5 (S4) ◽  
Author(s):  
Olympe Chazara ◽  
Helle Risdahl Juul-Madsen ◽  
Chi-Sheng Chang ◽  
Michele Tixier-Boichard ◽  
Bertrand Bed’hom

Genetics ◽  
2000 ◽  
Vol 154 (2) ◽  
pp. 869-884 ◽  
Author(s):  
Tim Langdon ◽  
Charlotte Seago ◽  
R Neil Jones ◽  
Helen Ougham ◽  
Howard Thomas ◽  
...  

Abstract The most distinctive region of the rye B chromosome is a subtelomeric domain that contains an exceptional concentration of B-chromosome-specific sequences. At metaphase this domain appears to be the physical counterpart of the subtelomeric heterochromatic regions present on standard rye chromosomes, but its conformation at interphase is less condensed. In this report we show that the two sequence families that have been previously found to make up the bulk of the domain have been assembled from fragments of a variety of sequence elements, giving rise to their ostensibly foreign origin. A single mechanism, probably based on synthesis-dependent strand annealing (SDSA), is responsible for their assembly. We provide evidence for sequential evolution of one family on the B chromosome itself. The extent of these rearrangements and the complexity of the higher-order organization of the B-chromosome-specific families indicate that instability is a property of the domain itself, rather than of any single sequence. Indirect evidence suggests that particular fragments may have been selected to confer different properties on the domain and that rearrangements are frequently selected for their effect on DNA structure. The current organization appears to represent a transient stage in the evolution of a conventional heterochromatic region from complex sequences.


Author(s):  
John Braithwaite

Responsibilities to protect and prevent elite crimes are best energized by enforcement that walks through many doors. Effective deterrence is rarely delivered by the International Criminal Court. Yet deterrence is possible when it patiently cumulates through many doors. Likewise truth, justice, and reconciliation can achieve little through one door and much through many. Opening more doors to the complexly cross-cutting character of survivor guilt with mass atrocities can better open possibilities for future prevention and reconciliation than simply doors to courtrooms that find a criminal on one side of complex sequences of atrocity. The Nuremberg and Tokyo War Crimes Trials opened quickly after World War II. They did not prove to hold keys to truth and reconciliation for Germany until the Eichmann trial finished in Jerusalem in 1962. Why? Still today, non-confession by the U.S. to Hiroshima/Nagasaki as war crimes has meant truncated Japanese reconciliation. Different kinds of doors are needed with crimes like the Dresden and Tokyo fire bombing, the rape of Nanjing and the “comfort women” issue. These have included citizens tribunals, truth commissions, and indigenous justice in cases like Bougainville that rejected the truth commission model. When we reflect upon door diversity, transitional justice turns out not to be very focused on justice or international criminal law, and not to be at all transitional, but rather a maze of doors to justice of diverse kinds that open or close across the longue durée (as developed in the work of Susanne Karstedt).1


1972 ◽  
Vol 19 (2) ◽  
pp. 189-191 ◽  
Author(s):  
B. E. Johnson ◽  
A. L. Shields

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