In order to improve the forecasting ability of numerical models, a sequential data assimilation scheme, nudging, was applied to blend remotely sensing high-frequency (HF) radar surface currents with results from a three-dimensional numerical, EFDC (Environmental Fluid Dynamics Code) model. For the first time, this research presents the most appropriate nudging parameters, which were determined ...

The social complexion of Toronto’s urban landscape has been irreversibly altered since the 1960s as new waves of migrants from Africa, Asia, the Caribbean, and Central and South America have replaced traditional white European migrant flows. We examine the very different residential settlement patterns of Toronto’s three largest racial minorities – Blacks, Chinese and South Asians. Unlike previ...

• Temperature and light responses of CO 2 efflux of Fagus sylvatica (beech) currentyear stems were measured for 1 yr to estimate their annual carbon balance. • Gas exchanges were determined using infrared gas analysis. Seasonal patterns of a fluorescence parameter (( F v / F m ) max ), nitrogen and chlorophyll contents were also assessed in stems and leaves, using standard techniques. • Basal r...

Several important issues in voice assimilation have been recently revisited. In particular, is it gradient or categorical? Distributional analyses of the voicing ratio in assimilating vs. neutral contexts conducted on French data have yielded somewhat discrepant results, yet suggesting that assimilation is categorical and optional at the same time. In this study, we compare between-word voice a...

Small RNAs have been studied in detail in domains Bacteria and Eukarya but, in the case of the domain Archaea, the knowledge is scarce and the physiological function of these small RNAs (sRNAs) is still uncertain. To extend the knowledge of sRNAs in the domain Archaea and their possible role in the regulation of the nitrogen assimilation metabolism in haloarchaea, Haloferax mediterranei has bee...

The unicellular green alga Chlamydomonas reinhardtii is a valuable model for studying metal metabolism in a photosynthetic background. A search of the Chlamydomonas expressed sequence tag database led to the identification of several components that form a copper-dependent iron assimilation pathway related to the high-affinity iron uptake pathway defined originally for Saccharomyces cerevisiae....

This work contributes to the issue of categoricity versus gradiency in natural assimilations. We focused on voice-assimilation in French and started from the assumption that the main cue to obstruent voicing is glottal pulsing. We quantified glottal pulsing continuously with a single acoustic measure — the proportion in duration of voiced portion(s) within a consonant — which we call v-ratio. W...

Clash of Cultures: Muslims and Christians in the Ethnosizing Process The paper explores the evolution of ethnic identities of two important and distinct immigrant religious groups. Using data from Germany, a large European country with many immigrants, we study the adaptation processes of Muslims and Christians. Individual data on language, culture, societal interactions, history of migration a...

Diel periodicity in the expression of key genes involved in carbon and nitrogen assimilation in marine Synechococcus spp. was investigated in a natural population growing in the surface waters of a cyclonic eddy in the northeast Atlantic Ocean. Synechococcus sp. cell concentrations within the upper mixed layer showed a net increase of three- to fourfold during the course of the experiment (13 t...

The ratio of carbon accumulation to transpiration, W, of wheat (Triticum aestivum L.) seedlings increased with increasing soil strength, measured as soil penetrometer resistance, and this was already apparent at the two leaf stage. The ratio was negatively correlated with carbon isotope discrimination, in accord with theory. This means that decrease in intercellular partial pressure of CO(2) ac...