It is known that a Steiner triple system is projective if and only if it does not contain the four-triple configuration C14. We find three configurations such that a Steiner Electronic Notes in Discrete Mathematics 29 (2007) 17–21 1571-0653/$ – see front matter © 2007 Elsevier B.V. All rights reserved. www.elsevier.com/locate/endm doi:10.1016/j.endm.2007.07.004 triple system is affine if and on...

A Steiner triple system (more simply, triple system) is a pair T) where S is the vertex set of the complete undirected graph Kn on n vertices and T is a collection of edge-disjoint triangles (triples) which partition the edge set of Kn. The number n is called the order of the triple system (S, T) and it has been known forever since 1847 of triple systems (= set of all n such that a triple syste...

We report the results of a molecular dynamics simulation that looked for the triple point of Lennard-Jones fluid in slit-shaped nanopores. The simulation method employed for this purpose is able to maintain vapor-liquid coexistence in a nanopore at a specific equilibrium bulk-phase pressure. The triple point is the freezing point of the critical condensate. The triple-point temperature could be...

Triple-negative breast cancers, which lack estrogen receptor, progesterone receptor, and HER2/neu overexpression, account for approximately 15% of breast cancers, but occur more commonly in African Americans. The poor survival outcomes seen with triple-negative breast cancers patients are, in part, due to a lack of therapeutic targets. Epidermal growth factor receptor (EGFR) is overexpressed in...

The Helicobacter pylori (H. pylori) cure rate following standard triple therapies is decreasing worldwide. Therefore, further approaches aimed to improve standard triple therapy efficacy should be attempted. This prospective, pilot study aimed to evaluate the therapeutic role of either Lactobacillus reuteri (L. reuteri) or a high concentration of probiotics in addition to standard triple therap...

W boson pair production processes at e^{+}e^{-} and pp colliders have been conventionally interpreted as measurements of WWZ and WWγ triple gauge couplings (TGCs). Such an interpretation is based on the assumption that new physics effects other than anomalous TGCs are negligible. While this "TGC dominance assumption" was well motivated and useful at LEP2 thanks to precision electroweak constrai...

An effective action for the M9-brane is proposed. We study its relation with other branes via dualities. Among these, we find actions for branes which are not suggested by the central charges of the Type II superalgebras. To be published in the proceedings of the TMR-meeting Quantum Aspects of Gauge Theories, Supersymmetry and Unification, Corfu, Greece, September 1998.

We investigate, in the Shannon model, the security of constructions corresponding to double and (two-key) triple DES. That is, we consider Fk1 (Fk2(·)) and Fk1(F −1 k2 (Fk1 (·))) with the component functions being ideal ciphers. This models the resistance of these constructions to “generic” attacks like meet in the middle attacks. We obtain the first proof that composition actually increases th...