• Publications
  • Influence
Computer-delivered interventions for alcohol and tobacco use: a meta-analysis.
Findings of the meta-analysis suggest that minimal contact computer-delivered treatments that can be accessed via the internet may represent a cost-effective means of treating uncomplicated substance use and related problems. Expand
Nabiximols as an agonist replacement therapy during cannabis withdrawal: a randomized clinical trial.
In a treatment-seeking cohort, nabiximols attenuated cannabis withdrawal symptoms and improved patient retention in treatment, however, placebo was as effective as nabximols in promoting long-term reductions in cannabis use following medication cessation. Expand
Constant relative age and size at sex change for sequentially hermaphroditic fish
  • D. Allsop, S. West
  • Biology, Medicine
  • Journal of evolutionary biology
  • 1 September 2003
The results suggest that, despite ignoring many biological complexities, relatively simple evolutionary theory is able to explain quantitatively at what point sex change occurs across fish species, and suggest some very broad generalities in how male fitness varies with size and age acrossFish species with different mating systems. Expand
Quantifying the Clinical Significance of Cannabis Withdrawal
Cannabis withdrawal is clinically significant because it is associated with functional impairment to normal daily activities, as well as relapse to cannabis use. Expand
Life history: Changing sex at the same relative body size
It is shown that the relative timing of sex change is surprisingly invariant across all animals: 91–97% of the variation in size at sex change across species can be explained by the simple rule that individuals change sex when they reach 72% of their maximum size. Expand
The Cannabis Withdrawal Scale development: patterns and predictors of cannabis withdrawal and distress.
The Cannabis Withdrawal Scale can be used as a diagnostic instrument in clinical and research settings where regular monitoring of withdrawal symptoms is required and has excellent psychometric properties. Expand
A Dimensionless Invariant for Relative Size at Sex Change in Animals: Explanation and Implications
A combination of approaches is used to formalize and make explicit previous analytical theory in this area, examine the robustness of the empirical invariance result, and carry out sensitivity analyses to determine what the empirical data imply about the mean value and variation in several key life‐history variables. Expand
Abstract Sex allocation theory is often able to make clear predictions about when individuals should facultatively adjust their offspring sex ratio (proportion male) in response to local conditions,Expand
Lithium carbonate in the management of cannabis withdrawal: a randomized placebo-controlled trial in an inpatient setting
The efficacy of lithium over placebo in the management of cannabis withdrawal was not demonstrated and both placebo- and lithium-treated participants showed reduced levels of cannabis use and improved health and psychosocial outcomes at 30- and 90-day follow-up relative to pretreatment baselines. Expand
Characteristics of Iranian women seeking drug treatment.
The characteristics of female drug users seeking treatment for heroin dependence in Iran are explored, finding many clients had made a transition from using opium to using heroin, and some had commenced injecting, placing them at risk for HIV and HCV infection. Expand