نتایج جستجو برای: alternating group
تعداد نتایج: 1003850 فیلتر نتایج به سال:
Faulty cardiac repolarization reserve in alternating hemiplegia of childhood broadens the phenotype.
Alternating hemiplegia of childhood is a rare disorder caused by de novo mutations in the ATP1A3 gene, expressed in neurons and cardiomyocytes. As affected individuals may survive into adulthood, we use the term 'alternating hemiplegia'. The disorder is characterized by early-onset, recurrent, often alternating, hemiplegic episodes; seizures and non-paroxysmal neurological features also occur. ...
A permutation a1a2 · · · an of 1, 2, . . . , n is alternating if a1 > a2 < a3 > a4 < · · · . We survey some aspects of the theory of alternating permutations, beginning with the famous result of André that if En is the number of alternating permutations of 1, 2, . . . , n, then P n≥0 En x n n! = sec x + tan x. Topics include refinements and q-analogues of En, various occurrences of En in mathem...
using elementary permutations also called modules These modules have a simple structure and are based on internal smaller permutations Two cases are considered In the rst the modules apply internal permutations only It has been proved that the composition of modules generates the alternating group for the number of binary inputs bigger than In the second DES like modules are considered and it i...
BACKGROUND Alternating administration of docetaxel and gemcitabine might result in improved time-to-treatment failure (TTF) and fewer adverse events compared with single-agent docetaxel as treatment of advanced breast cancer. PATIENTS AND METHODS Women diagnosed with advanced breast cancer were randomly allocated to receive 3-weekly docetaxel (group D) or 3-weekly docetaxel alternating with 3...
McMahon’s result that states the length and major index statistics are equidistributed on the symmetric group Sn has generalizations to other Coxeter groups. Adin, Brenti and Roichman have defined analogues of those statistics for the hyperoctahedral group, Bn and proved equidistribution theorems. Using combinatorial interpretations of Regev and Roichman’s statistics length and delent, we consi...
this study investigated how group formation method, namely student-selected vs. teacher-assigned, influences the results of the community model of teaching creative writing; i.e., group dynamics and group outcome (the quality of performance). the study adopted an experimental comparison group and microgenetic research design to observe the change process over a relatively short period of time. ...
Based on an unconditionally stable finite difference implicit scheme, we present a concept of deriving a class of effective alternating group explicit iterative method for periodic boundary value problem of convectiondiffusion equations, and then give two iterative methods. The methods are verified to be convergent, and have the property of parallelism. Furthermore we construct an alternating g...
We answer a question of Paterson, showing that all block systems for the group generated by the round functions of a key-alternating block cipher are the translates of a linear subspace. Following up remarks of Paterson and Shamir, we exhibit a connection to truncated differential cryptanalysis. We also give a condition that guarantees that the group generated by the round functions of a key-al...
Akers et al. (Proceedings of the International Conference on Parallel Processing, 1987, pp. 393–400) proposed an interconnection topology, the star graph, as an alternative to the popular n-cube. Jwo et al. (Networks 23 (1993) 315–326) studied the alternating group graph An. Cheng et al. (Super connectivity of star graphs, alternating group graphs and split-stars, Ars Combin. 59 (2001) 107–116)...
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