Together or Separate: What is best practice when imaging bilateral hands for rheumatoid arthritis examinations?

Introduction: A current gap identified in medical imaging (MI) literature is a standardised approach to bilateral hand examinations. This examination performed concurrently or unilaterally results in different effects on radiation dose and image quality, both of which are important to the diagnostic and follow-up imaging of rheumatoid arthritis (RA) patients.

Methods: An experimental study was undertaken using anthropomorphic hand phantoms at the Queensland University of Technology (QUT) MI Simulation laboratory.

An investigation of factors affecting changes in health behaviours during the COVID-19 pandemic in a UK population-based cohort study.

Objectives: The COVID-19 pandemic has led to changes in behaviours, which may have different health effects in population subgroups. We investigated whether within-individual changes in health behaviours from before to during the pandemic differ by socio-economic deprivation, age or sex.

Study Design: Prospective cohort study.

A Psychological Aversive Condition Does Not Change Individual Zebrafish Preference For Background Color Or Artificial Plant Enrichments.

Information on fish preference for environmental conditions can be a useful tool to offer them what they want, an important requirement for welfare purposes. Giving that such an approach deals with psychological states of the fish, we investigated whether psychological stress affects fish preference. In this study, we found that the aversive condition of crossing a white open field did not change individual zebrafish's preference for color background or for plant enrichments, despite a great individual variability of preference response.

Do school closures and school reopenings affect community transmission of COVID-19? A systematic review of observational studies.

Objectives: To systematically reivew the observational evidence of the effect of school closures and school reopenings on SARS-CoV-2 community transmission.

Setting: Schools (including early years settings, primary schools and secondary schools).

Intervention: School closures and reopenings.

Trace conditioning as a test for animal consciousness: a new approach.

Trace conditioning involves the pairing of a neutral conditioned stimulus (CS), followed by a short interval with a motivationally significant unconditioned stimulus (UCS). Recently, trace conditioning has been proposed as a test for animal consciousness due to its correlation in humans with subjective report of the CS-UCS connection. We argue that the distractor task in the Clark and Squire (1998) study on trace conditioning has been overlooked.