St. Peter's Despair

Fisheries: hope or despair?

Recent work suggesting that fisheries depletions have turned the corner is misplaced because analysis was based largely on fisheries from better-managed developed-world fisheries. Some indicators of status show improvements in the minority of fisheries subjected to formal assessment. Other indicators, such as trophic level and catch time series, have been controversial. Nevertheless, several de...

Peters’ Anomaly

While conducting medical aid in Mozambique, a 41 year old African male presented to our eye clinic complaining of visual impairment. The male was found to have Peters' anomaly type 2, a rare congenital ocular malformation leading to sensory amblyopia and glaucoma.

Despair on disparities.

In this issue of Annals of the Rheumatic Diseases, Sokka et al (see page 1666), by analysing the data from the Quantitative Standard Monitoring of Rheumatoid Arthritis (QUEST-RA) cohort, with over 6000 patients from 25 countries, warn us of possible disparities in the health of patients with rheumatoid arthritis. This international team of researchers found a clear association between gross dom...

Despair and Hope

Jan Peters and Jens

Reinforcement Learning is an essential ability for robots to learn new motor skills. Nevertheless, few methods scale into the domain of anthropomorphic robotics. In order to improve in terms of efficiency, the problem is reduced onto reward-weighted imitation. By doing so, we are able to generate a framework for policy learning which both unifies previous reinforcement learning approaches and a...