Brenton R. Clarke

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STUDY DESIGN Blinded parallel-group randomized controlled trial. OBJECTIVE Establish the frequency and severity of adverse effects from short-term usual chiropractic treatment of the spine when compared with a sham treatment group. SUMMARY OF BACKGROUND DATA Previous studies have demonstrated that adverse events occur during chiropractic treatment.(More)
Data collected on the use of hearing aids by 680 school-aged hearing-impaired subjects are examined and aid use is related to gender, age, hearing loss, age at onset, aetiology, age at diagnosis, educational setting, method of communication, primary language in the home, hearing status of parents and additional handicaps. The likelihood of a student wearing(More)
BACKGROUND Previous studies have demonstrated that adverse events occur during chiropractic treatment. However, because of these studies design we do not know the frequency and extent of these events when compared to sham treatment. The principal aims of this study are to establish the frequency and severity of adverse effects from short term usual(More)
The Sperm Quality Analyzer (SQA) IIB, a member of the SQA-II family of machines which uses the scatter of light by sperm as an indicator of sperm motility, was systematically evaluated as a means of analyzing objectively the motility of porcine epididymal sperm. The sperm motility (%) and the Sperm Motility Index (SMI) are calculated by the machine using(More)
Statistical modelling and inference for a single-ion channel have principally been carried out using finite-state space continuous-time Markov chains. Statistical inferences for the closed and open dwell times and the kinetic rate constants between states have then been arrived at via maximum likelihood methods, including the use of the EM algorithm. The(More)
Total scores on the recently developed Screening Test from the Test of Syntactic Abilities for 382 hearing-impaired subjects between eight and 19 years and in various educational programs were found to be significantly related to hearing threshold level, number of multiple handicaps, age, educational setting, method of communication, and hearing aid usage.(More)
In literature several estimates have been proposed for unimodal densities. They are typically derived from the Grenander estimate (see Grenander (1956)) for decreasing densities which can be easily extended to the case of unimodal densities with a known mode at . The resulting estimator is the nonparametric maximum likelihood estimator (NPMLE). If the mode(More)