OBJECTIVE Insulin resistance (IR) is frequent in polycystic ovary syndrome (PCOS) and contributes to the increased risk for type 2 diabetes mellitus and cardiovascular disease of this population. Several markers of IR are used but most are expensive or have limited sensitivity and specificity. Preliminary data suggest that the menstrual cycle pattern correlates with IR in PCOS but existing stud...

a r t i c l e i n f o a b s t r a c t In a recently published paper [Z.-J. Xue, S.-Y. Liu, An optimal result on fault-tolerant cycle-embedding in alternating group graphs, Inform. the authors showed that for a set of faulty vertices F in an n-dimensional alternating group graph AG n , AG n − F remains pancyclic if |F | 2n − 6. However, the proof of the result is flawed. We will prove the theore...

For the block cipher RIJNDAEL with a block length of 128 bits group theoretic properties of the round functions are derived. Especially it is shown that these round functions generate the alternating group.

The combinatorial theory for the set of parity alternating permutations is expounded. In view of the numbers of ascents and inversions, several enumerative aspects of the set are investigated. In particular, it is shown that signed Eulerian numbers have intimate relationships to the set.

Agile development methods such as eXtreme Programming (XP) are increasingly adopted by software organizations and engineers to access its effectiveness and the benefits it promises. However, XP has some limitations in certain aspects pertaining to inter-group communication and teamwork. This issue is attributed mostly to the isolation among different pair-programmer groups. In this analysis, we...

in order to study the effects of intercropping on yield of black cumin in intercropping with chickpea and bean, an experiment was conducted in a complete randomized block design with four replications. crops were planted as pure stands and intercrops in three arrangements: a) alternating rows of a field crop and a medicinal plant, b) two rows of field crops and one row of medicinal plant, c) al...

I N the design of block ciphers,’ it is considered a virtue if the encipherment can perform all the (2”)! permutations on n vectors, where n is large enough to prevent the feasibility of applying the usual techniques for cryptanalyzing a substitution code. However, this is an impractical target since such a system would require a key of length log,(2”)! = n . 2”. Thus, one is inclined to weaken...

In this paper, based on an unconditionally stable finite difference implicit scheme, we present a concept of deriving a class of effective alternating group explicit iterative method(AGEI) for periodic boundary value problem of convection-diffusion equations, and then give two AGEI methods. The AGEI methods are verified to be convergent, and have the property of parallelism. Results of numerica...

In this paper, a high order implicit scheme for solving diffusion equations is presented, based on which a class of alternating group explicit iterative method(AGI) is derived. Also the convergence analysis and the stability analysis are given. In the end, the results of numerical experiment are presented, which shows the AGI method is convergent and suitable for parallel computation. Mathemati...

Duality is the operation that interchanges hypervertices and hyperfaces on oriented hypermaps. The duality index measures how far a hypermap is from being self-dual. We say that an oriented regular hypermap has duality-type {l, n} if l is the valency of its vertices and n is the valency of its faces. Here, we study some properties of this duality index in oriented regular hypermaps and we prove...