Leonee Ormond (ed.), The Reception of Alfred Tennyson in Europe. London and New York: Bloomsbury, 2017. Pp. 424.

Δε διατίθεται περίληψη / no abstract availabl

Parallel Tempering: Theory, Applications, and New Perspectives

We review the history of the parallel tempering simulation method. From its origins in data analysis, the parallel tempering method has become a standard workhorse of physiochemical simulations. We discuss the theory behind the method and its various generalizations. We mention a selected set of the many applications that have become possible with the introduction of parallel tempering and we suggest several promising avenues for future research.Comment: 21 pages, 4 figure

"Hidden things": Cavafy's thematic catliogues

Throughout his literary career Cavafy was concerned with the thematic classification and arrangement of his poems. The arrangement of the poems in the thematic collections which Cavafy himself distributed has already been examined in detail by one of the present authors (Hirst, 1995). The purpose of this article is to attempt, and to comment on,reconstructions of the unpublished thematic catalogues which are known to be in the Cavafy Archive. It is unfortunate that such an attempt is necessary and nothing would please us more than to see our reconstructions promptly rendered superfluous by the fun publication ofthe relevant material from the Archive. Until such time as this happens, we believe that our necessarily incomplete reconstructions will be of interest and use to readers and interpreters of Cavafy's poems

Sucrose diffusion in aqueous solution.

The diffusion of sugar in aqueous solution is important both in nature and in technological applications, yet measurements of diffusion coefficients at low water content are scarce. We report directly measured sucrose diffusion coefficients in aqueous solution. Our technique utilises a Raman isotope tracer method to monitor the diffusion of non-deuterated and deuterated sucrose across a boundary between the two aqueous solutions. At a water activity of 0.4 (equivalent to 90 wt% sucrose) at room temperature, the diffusion coefficient of sucrose was determined to be approximately four orders of magnitude smaller than that of water in the same material. Using literature viscosity data, we show that, although inappropriate for the prediction of water diffusion, the Stokes-Einstein equation works well for predicting sucrose diffusion under the conditions studied. As well as providing information of importance to the fundamental understanding of diffusion in binary solutions, these data have technological, pharmaceutical and medical implications, for example in cryopreservation. Moreover, in the atmosphere, slow organic diffusion may have important implications for aerosol growth, chemistry and evaporation, where processes may be limited by the inability of a molecule to diffuse between the bulk and the surface of a particle