Surely, you’ve read in-flight magazines, even when you’ve had work to do. Articles on fascinating subjects such as the science of laughter and the world’s best concierge are hard to resist. But suppose you’d tucked the magazine you’re now reading into the seat pocket in front of you and then inadvertently abandoned it upon reaching your destination. What chain of events might such an oversight ...

This work focused on the influence of processing conditions on the mechanical properties of polypropylene (PP) and PP/mesoporous silica-hydroxyapatite (PP/MCM-41-HA) hybrid nanocomposites. The mechanical properties of PP were enhanced by adding MCM-41-HA nanoparticles. Neat PP and hybrid nanocomposites based on PP, containing maleic anhydride-grafted polypropylene (PP-g-MA) and MCM-41-HA, were ...

We present an extension, for nonlinear optimization under linear constraints, of an algorithm for quadratic programming using a trust region idea introduced by Ye and Tse [Math. Programming, 44 (1989), pp. 157–179] and extended by Bonnans and Bouhtou [RAIRO Rech. Opér., 29 (1995), pp. 195–217]. Due to the nonlinearity of the cost, we use a linesearch in order to reduce the step if necessary. We...

Hendrikus A. M. van Wijlick, Rome and the Near Eastern Kingdoms Principalities, 44–31 BC: A Study of Political Relations during Civil War, (Impact Empire – 38), Brill, Leiden–Boston 2021, 307 pp. + 3 figs. maps 6 stemmae; ISBN 978-90-04-44174-3; ISSN 1572-0500

The study of the absorption profile of the uI ‘R 44 and pP SB lines of ammonia at various pressures is reported. The two lines of the observed inversion doublets broaden as the pressure is increased until they overlap. Once the lines have overlapped the spectral profile narrows and then begins to broaden again but at a markedly different rate. This effect is due to collisions which transfer coh...

Magazine 1934;Jul–Aug:153–59. (Reprinted Int J Epidemiol 2003;32:493–95.) 4 McKeown T, Brown R. Medical evidence related to English population changes in the eighteenth century. Popul Stud 1955;9:119–41. 5 Rosental P. The novelty of an old genre: Louis Henry and the founding of historical demography. Population (English Edition) 2003;58:97–130. 6 Johansson SR. ‘Death and the Doctors: Medicine a...

ments for Textbook Components," Technical Report 90-1125 (Computer Science Department, Cornell University, 1990). 44. D. C. Crouch, in Proceedings ofthe Ninth Annual International Conference on Research and Development in Information Retrieval (Association for Computing Machinery, New York, 1986), pp. 58-67; T. E. Doczkocs, ibid., pp. 49-57; P. Ingwersen and I. Wormell, ibid., pp. 68-76. 45. R....