Publications by authors named "M Perri"

With large wildfires becoming more frequent, we must rapidly learn how megafires impact biodiversity to prioritize mitigation and improve policy. A key challenge is to discover how interactions among fire-regime components, drought and land tenure shape wildfire impacts. The globally unprecedented 2019-2020 Australian megafires burnt more than 10 million hectares, prompting major investment in biodiversity monitoring.

View Article and Find Full Text PDF

Salmonella contamination in pig slaughterhouses is linked to infection rate on farms. Accurate diagnosis in heavy pigs relies on isolating pathogens from the gut wall or lymph nodes. A key technique is Immunocapture using Magnetic Beads (IMS), which purifies target bacteria from Salmonella enrichment broths.

View Article and Find Full Text PDF
Article Synopsis
  • Many people regain weight after weight-loss programs, but extended-care programs could help maintain that weight loss over time, even if the effect isn’t huge.
  • This study aimed to compare two types of extended-care phone sessions: ADAPTIVE (when at high risk of regaining weight) versus STATIC (a regular monthly check-in) for better long-term results.
  • The findings from Project STAR will reveal if the ADAPTIVE schedule is more effective for maintaining weight loss and will also contribute to future strategies for preventing weight regain.
View Article and Find Full Text PDF

We propose a new Bayesian nonparametric method for estimating the causal effects of mediation in the presence of a post-treatment confounder. The methodology is motivated by the Rural Lifestyle Intervention Treatment Effectiveness Trial (Rural LITE) for which there is interest in estimating causal mediation effects but is complicated by the presence of a post-treatment confounder. We specify an enriched Dirichlet process mixture (EDPM) to model the joint distribution of the observed data (outcome, mediator, post-treatment confounder, treatment, and baseline confounders).

View Article and Find Full Text PDF
Article Synopsis
  • Social isolation and loneliness (SIL) significantly affect individuals who are homeless, but their impact on health and wellbeing is not well-researched, leading to a lack of targeted policies and interventions.
  • A comprehensive review examined literature from various databases, identifying 27 qualitative, 23 quantitative, and 2 mixed-method studies that address SIL in the context of homelessness, with prevalence rates varying from 25% to 90%.
  • The review highlights the challenges in comparing findings due to diverse measurement tools used in studies, as well as gaps in understanding the relationship between SIL and health, wellness, and substance use among homeless populations.
View Article and Find Full Text PDF