1. Deguchi T, Maeda S. Mycoplasma genitalium: another important pathogen of nongonococcal urethritis. J Urol. 2002;167:1210–7. doi:10.1016/S00225347(05)65268-8 2. Jensen JS. Mycoplasma genitalium: the aetiological agent of urethritis and other sexually transmitted diseases. J Eur Acad Dermatol Venereol. 2004;18:1–11. doi:10.1111/j.1468-3083.2004.00923.x 3. Mena LA, Mroczkowski TF, Nsuami M, Mar...

This paper studies systems of polynomial equations that provide information about orientability of matroids. First, we study systems of linear equations over F2, originally alluded to by Bland and Jensen in their seminal paper on weak orientability. The Bland-Jensen linear equations for a matroid M have a solution if and only if M is weakly orientable. We use the Bland-Jensen system to determin...

What of the knowledge that is required to understand dynamic systems is covered by the traditional school math curriculum? In this study, the Booth Sweeney and Sterman (2000) bathtub tasks and the Jensen and Brehmer (2003) rabbits-and-foxes task were dissected into aspects. Questionnaires with tasks tapping into the identified aspects were administered to first-semester university engineering s...

The study of complex networks has recently attracted increasing interest because of the large variety of systems that can be modeled using graphs. A fundamental operation in the analysis of complex networks is that of measuring the centrality of a vertex. In this paper, we propose to measure vertex centrality using a continuous-time quantum walk. More specifically, we relate the importance of a...

In this paper, a reduced complexity Log-MAP algorithm based on a non-recursive approximation of the max∗ operator is presented and studied for turbo trellis-coded modulation (TTCM) systems. In the algorithm, denoted as AvN Log-MAP, the max∗ operation is generalized and performed on n ≥ 2 arguments. The approximation is derived from the Jensen inequality. The non-recursive form of the max∗ calcu...

holds. This inequality can be traced back to Jensen’s original papers [, ] and is one of the most fundamental mathematical inequalities. One reason for that is that in fact a great number of classical inequalities can be derived from (.), see e.g. [] and the references given therein. The inequality (.) cannot in general be improved since we have equality in (.) when φ(x)≡ x. However, f...