In using pooling designs to identify clones containing a specific subsequence called positive clones, sometimes there exist nonpositive clones which can cancel the effect of positive clones. Various models have been studied which differ in the power of cancellation. Although the various models pose interesting mathematical problems, and ingenious constructions of pooling designs have been propo...

Randomisation is a method to test the statistical significance of a symbolic rule; it is, however, very expensive. In this paper we present a sequential randomisation test which dramatically reduces the number of steps needed for a conclusion.

Distributive lattices are well known to be precisely those lattices that possess cancellation: x ∨ y = x ∨ z and x ∧ y = x ∧ z imply y = z. Cancellation, in turn, occurs whenever a lattice has neither of the 5-element lattices M3 or N5 as sublattices. In this paper we examine cancellation in skew lattices, where the involved objects are in many ways lattice-like, but the operations ∧ and ∨ no l...

We present a class of Ansätze for the up and down quark mass matrices which leads approximately to: |Vus| ∼ √ md/ms, |Vcb| ∼ ms/mb, and |Vub/Vcb| ∼ √ mu/mc. Sizes of the Kobayashi-Maskawa matrix elements are controlled solely by quark mass ratios. In particular, we introduce no other small parameter and our results do not rely on delicate cancellation. Electronic address: [email protected]...

Background: Individual and professional features have a positive impact on success, performance improvement, and other behavioral variables in all organizations. Social health is an important components for the employees of every organization. This research was carried out to investigate the effect of individual and professional factors on the social health of faculty members of Islamic Azad un...

An analysis of the relationship between the individual components of the 1 min Apgar score, and of each of them with the acid-base status of the infant at delivery, is presented. It is based upon data from four groups of cases: Caesarean section (188), vaginal deliveries conducted under lumbar epidural block (54), and vaginal deliveries without epidural block, the mothers having received no nar...