Do the biological characteristics of trout (Salmo trutta) smolts influence their spring migration timing and maiden marine sojourn duration?

Anadromous salmonids migrate seaward to exploit feeding and growth opportunities in marine habitats, yet how smolt biological characteristics influence their marine migratory behavior remains poorly understood. This study used 9 years of trout (Salmo trutta) population monitoring data from 15,595 tagged age-0+ parr, 1033 smolts detected migrating downstream in spring, and 99 adults detected returning from their first marine migration to the River Frome (Dorset, UK) to investigate the influence of smolt biological characteristics on their migration timing and maiden marine sojourn duration. Age-specific differences in the influence of smolt length on migration timing were found, with longer 1-year-old smolts emigrating later than their shorter counterparts within the same age class, but the opposite association existed for 2-year-old smolts.

The Association Between In Utero Exposure to Painkillers and Trajectories of Hyperactivity and Emotional Problems in Children with Autism Compared with Neurotypical Peers.

: In utero exposure to painkillers has raised concerns regarding its potential impact on neurodevelopmental disorders, such as autism spectrum disorder (ASD). This study investigates the association between in utero exposure to painkillers and trajectories of hyperactivity and emotional problems in children with and without ASD, separately. Data were drawn from 5107 participants enrolled in the Longitudinal Study of Australian Children.

Injury Patterns and Associated Demographic Characteristics in Children with a Fracture from Equines: A US National Based Study.

Background: Fractures often occur due to equestrian activities with injury patterns varying by age. The purpose of this study was to investigate in detail fracture patterns and associated demographics in children due to equine activities.

Materials: The US National Electronic Injury Surveillance System was queried for all injuries with the consumer product code 1239 (horseback riding) from 2000 to 2023.

Lymph node assessment at the time of robotic hysterectomy for endometrial intraepithelial neoplasia: A cost-effectiveness analysis.

Objective: We sought to determine the cost-effectiveness (CE) of lymph node dissection (LND) at the time of hysterectomy for endometrial intraepithelial neoplasia (EIN).

Methods: A decision analytic model was created to evaluate the strategies of routine full LND, sentinel lymph node dissection (SNLD), SNLD without advancing to full LND in the event of non-mapping, and full LND based on Mayo Criteria, versus no LND. Patients in the no LND group and those in the SLND group without advancement to full LND in the event of non-mapping who were found to have EC on final pathology and suspicious post-operative imaging underwent full LND.