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Social interactions can have profound effects on reproduction and the proximate mechanisms involved are just beginning to be understood. Lythrypnus dalli, the bluebanded goby, is an ideal organism for analyzing the dynamics of socially controlled sex change both in the laboratory and field. As with most research species, the majority of its behavioural and(More)
An isocratic reverse-phase high-performance liquid chromatographic system is described for resolving theophylline, acetaminophen, caffeine, chloramphenicol, ethosuximide, primidone, phenobarbital, phenytoin, and carbamazepine within 7 min. A procedure for routinely measuring these drugs in serum is validated and has been extended to include the(More)
New Zealand loggers commonly use chainsaws weighing up to 10 kg. Chainsaw work is both physically arduous and potentially dangerous. A contributing factor to the high injury rate of loggers could be the high physiological and biomechanical load of chainsaw work. This study investigated the comparative cardiovascular strain imposed on 11 chainsaw operators(More)
  • By F. Poineau, J. Du Mazaubrun, +8 authors Harry Reid
  • 2008
In the context of the demonstration of the UREX (uranium extraction) process, a separation of uranium and technetium using an anion exchange resin was performed on a simulant solution containing 98.95 g/L of U and 130.2 mg/L of Tc. After sorption on the resin, TcO4 − was eluted with NH4OH, the eluting stream was treated, and the technetium converted to Tc(More)
A series of mono-, di-, and trimethoxystyryl derivatives of heterocyclic nitrogen compounds were prepared to test the N-O-O triangulation hypothesis of Zee-Cheng and Cheng. Of 29 free bases submitted for KB cell culture test, only 2-(3,4-methylenedioxystyryl)benzoxazole and 4-(2,5-dimethoxystyryl)cinnoline were active (ED50 of 4 microgram/ml or less).(More)
We observed cycles presented in a luminescent solar insolation proxy record from a speleothem from Jewel Cave, South Dakota, US. We found cycles of orbital precession with periods of 23 and 19 ka and of obliquity of 41 ka and many others from nonorbital origin in this sample. We determined the Solar origin of the cycles with durations of 11500, 4400, 3950,(More)
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