Drew Provan. BMJ Books, 2002. Pp. 88. £17.95. The author states on the cover that that the aim of this book is as follows: ‘With each chapter written by an expert in the field, this is an ideal basic text for general practice and hospital staff with patients who have blood related problems. In particular GP’s, nurses, junior hospital doctors, haematologists, and trainees in haematology will find this book useful.’ Does the book reach these aspirations? The answer is yes. It is clearly written with well laid out tables, figures, bullet points, etc. to reinforce the text. The chapter authors are experts and well recognized names but they have been well ‘restricted’ in their writings by Dr Provan so that each chapter is focused for the intended level of readership and yet is still up to date in terms of both scientific background and clinical management. The book is well written and easy to read. References and further reading are helpful and appropriate. The last three chapters (‘Haematological disorders at the extremes of life’, ‘Haematological emergencies’ and ‘The future of haematology: the impact of molecular biology and gene therapy’) are particularly relevant. The book is published by BMJ books and is, therefore, likely to get wide circulation. It deserves it.
This paper describes an induction voltage adder (IVA) being designed by Titan Pulse Sciences Division (TPSD) for AWE Aldermaston, UK. This IVA will be used to power the radiography sources in AWE's planned three-axis Hydrodynamic Research Facility (HRF). TPSD will provide the IVAs and AWE will provide the radiographic diodes. The full IVA will in its initial configuration deliver a 14 MV, 110 kA, 50-60 ns pulse first to a large area diode and then to a developmental radiographic diode. The HRF IVA has been designed utilizing two-conductor water dielectric pulse forming lines (pfls) with laser triggered gas switches and can be reconfigured to power a range of radiographic diodes with peak powers from 1.5 to 3.9 TW and peak voltages from 8 to 16.8 MV. LSP simulations of the vacuum region aided by parapotential theory have explored and optimized the coupling of the different IVA configurations to various diodes.
This is a protocol for a study in qhich we shall seek to generate dose-response curves relating the daily doses of different statins currently licensed for clinical use to their effects in reducing LDL cholesterol, for comparison of calculated ED50 values with the dosages typically used in clinical practice. This will also allow a comparison of the different dosages of different statins that are capable of producing the same LDL-lowering effect.
A brief account is given of a television IF acoustic surface wave filter made on bismuth silicon oxide. The potential advantages of this substrate material are pointed out, the filter design techniques used are explained, and the device construction is described. Measured responses of filters for two television systems are given.
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