Experience with duplex bearings in narrow angle oscillating applications

Duplex ball bearings are matched pairs on which the abutting faces of the rings have been accurately ground so that when the rings are clamped together, a controlled amount of interference (preload) exists across the balls. These bearings are vulnerable to radial temperature gradients, blocking in oscillation and increased sensitivity to contamination. These conditions decrease the service life of these bearings. It was decided that an accelerated thermal vacuum life test should be conducted. The test apparatus and results are described and the rationale is presented for reducing a multiyear life test on oil lubricated bearings to less than a year

Now the wars are over: The past, present and future of Scottish battlefields

Battlefield archaeology has provided a new way of appreciating historic battlefields. This paper provides a summary of the long history of warfare and conflict in Scotland which has given rise to a large number of battlefield sites. Recent moves to highlight the archaeological importance of these sites, in the form of Historic Scotland’s Battlefields Inventory are discussed, along with some of the problems associated with the preservation and management of these important cultural sites

Alternate fluffy testers for detecting and diagnosing chromosome rearrangements in Neurospora crassa.

Alternate fluffy testers for detecting and diagnosing chromosome rearrangements in Neurospora crassa

Linear growth rates of strains representing 10 Neurospora species

Linear growth rates of strains representing 10 Neurospora specie

A highly fertile fluffy allele, fl^Y, which produces macroconidia.

In 1964, the FGSC obtained a pale-yellow stock which was listed as ylo-3 (Y234M474) [FGSC no. 902]

Newly mapped chromosomal loci of Neurospora crassa.

Newly mapped chromosomal loci of Neurospora crassa

Convenient scoring of deoxyglucose resistance in Neurospora

Allen et al. (1989 J. Bacteriol. 171:53-58 and personal communication) have described scoring dgr mutants on media prepared by adding filter-sterilized fructose and deoxyglucose solutions to medium that has already been autoclaved. This is inconvenient if tests are to be made on tubed slants, as we prefer to do

New supplements for the formate mutant of Neurospora. A possible role for ascorbic acid?

Recently we found what appeared to be a new auxotroph in one of our stocks. It was eventually traced to the formate (for) locus

Neurospora strains incorporating fluffy, and their use as testers.

We have used fluffy (fl) strains extensively as female parents in mating-type tests and for a variety of other applications where high fertility and absence of conidia are advantageous

MOBILE and the provision of total joint replacement

Modern joint replacements have been available for 45 years, but we still do not have clear indications for these interventions, and we do not know how to optimize the outcome for patients who agree to have them done. The MOBILE programme has been investigating these issues in relation to primary total hip and knee joint replacements, using mixed methods research