Now showing items 1-10 of 271
Developments in wavelength division multiple access networking
The last few years have seen a growing interest in WDM for optical networks in order to increase capacity and overcome the electronic bottleneck. Alongside the improvement in WDM components there has been continuing ...
Methods for assessment of light leaf spot (Pyrenopeziza brassicae) on winter oilseed rape (Brassica napus) in the UK
Light leaf spot (Pyrenopeziza brassicae) was assessed as % plants with light leaf spot, % leaves with light leaf spot or % leaf area with light leaf spot in winter oilseed rape field experiments done at different sites ...
Identification of a truncated form of the CC chemokine CKβ-8 demonstrating greatly enhanced biological activity
A new CC chemokine, designated CKβ-8 or myeloid progenitor inhibitor factor-1, was recently identified in a large scale sequencing effort and was cloned from a human aortic endothelial library. CKβ-8 cDNA encodes a signal ...
Farm-level assessment of the nutrient balance in northern Nigeria.
The farming system of the Kano close-settled zone, northern Nigeria, is known for its longevity and continued productivity in spite of population increases in the area. Mounting circumstantial evidence has led to its ...
British pharmaceuticals : a cautionary tale
British pharmaceuticals is generally represented as a successful sector which illustrates the potential of knowledge-intensive, high-value-added activities. this article presents a revisionist account based on evidence and ...
Differential release of dopamine by nitric oxide in subregions of rat caudate putamen slices
Fast cyclic voltammetry was used to measure NO and dopamine (DA) simultaneously in rat caudate putamen (CPu) slices. Analysis of electrochemical signals obtained from mixtures of DA and NO showed that subtraction of either ...
Explosive nucleosynthesis close to the drip lines
We give an overview of explosive burning and the role which neutron and/or proton separation energies play. We focus then on the rapid neutron capture process (r-process) which encounters unstable nuclei with neutron ...
Diagnosis of light leaf spot (Pyrenopeziza brassicae) on winter oilseed rape (Brassica napus) in the UK
Light leaf spot lesions were generally first observed as light green areas on leaves of UK winter oilseed rape crops in January or February and later became brittle and bleached. Elongated lesions, which were brown with ...
Contraction with shortening during stimulation or during relaxation : how do the energetic costs compare?
White muscle fibres from dogfish were used to compare the energetic costs of shortening by fully active muscle and by relaxing muscle. The muscle preparation was tetanized for 0.6 s and shortened either during stimulation ...