The intra- and interspecific variability in the West Palaearctic tibialis-group species of the subgenus Pandasyopthalmus (Diptera: Syrphidae: Paragus) was analysed. Novel immature and molecular characters were studied and the traditionally used adult characters reviewed with the aim of establishing the…

Numerical calculation of Fresnel patterns through fast Fourier transforms usually requires an extremely large number of samples in order to fulfil the Nyquist sampling condition. In many applications, the cut-off frequency of the system is much below the limit fixed…

Aniline (ANI) and 2-aminoterephthalic acid (2ATA) copolymers, with different compositions, were prepared by
chemical oxidative polymerization varying the feed ratio. The new materials have been characterized by techniques such
as XPS, FTIR, Raman spectroscopies and thermal analysis. It has been…

Antimony-doped tin dioxide electrodes supported on titanium have been used in the electrochemical treatment of aqueous solution
containing phenol. Ti/SnO2–Sb anode has high efficiency in the elimination of phenol, but its use is hindered by its short service
life. The…

Objectives: The fall of the Wall in 1989 can be seen as a natural experiment in the epidemiological sense to further examine the relation between democracy and health. Design and setting: Ecological study in the 23 post-communist countries, during the…

Is the tyranny of the co-edition taking away
the magic of a ‘sense of place’ in picturebooks? In this essay, Martin Salisbury discusses the impact of globalised publishing on what picturebook artists may and may not represent.

Choline, the precursor and the metabolite of acetylcholine, is reputed as a selective α7 nicotinic receptor agonist. In this study, however, we
have seen that choline exerted a dual effect on bovine nicotinic receptors expressed in Xenopus oocytes. On the…

The notion of ‘participation’ has growing currency at many levels of social policy in the UK where the Labour government uses it to
denote the engagement of ‘local people’ in decision-making about the services and structures which affect their daily…

The industrial revolution did not take the environment into
consideration when designing products. However, today
the eco-friendly design of products is a task that gets more
visibility due to the great quantity of industrial waste generated
to finalize the useful…

Most parents or carers who separate or divorce are able to make arrangements themselves about where their children will reside and how the children’s contact with the non-resident parent will be managed. A further group of parents or carers are…