Publications by authors named "R Rhiannon Simons"

Atypical scrapie (AS) is a transmissible spongiform encephalopathy (TSE) that affects sheep and goats. Low within-flock incidence suggests that AS is not transmissible between animals, and testing of all animals that exit positive flocks for two years following detection (i.e.

View Article and Find Full Text PDF

This study examined associations of compliance rate with the reliability and convergent validity of intoxication and negative affect assessments in experience sampling method (ESM) data in three samples (Veterans, Sexual Minority Men, and College Students). Convergent validity was operationalized as within-person associations between daily aggregates of random in situ assessments and retrospective daily assessments or transdermal alcohol assessments. Measures with lower ICC require more assessments for a reliable aggregate (e.

View Article and Find Full Text PDF

Background: This study examined the longitudinal relationship between cumulative socioeconomic status (SES) risk and serum neurofilament light chain (NfL) levels to better understand the association between social factors and a biomarker of neurodegeneration.

Methods: We used data from the Family and Community Health Study, collecting psychosocial and blood data at 2 waves (2008) and (2019) from 254 Black Americans (43 males and 211 females). Blood samples were analyzed at each wave for serum NfL concentrations.

View Article and Find Full Text PDF

Objective: The purpose of this study was to investigate the effect of coronectomy on postoperative quality of life in older adults.

Background: Coronectomy is an alternative to complete surgical removal of a mandibular third molar that lies close to the inferior alveolar nerve.

Materials And Methods: This prospective study included patients >60 years old who had an indication for coronectomy of a mandibular third molar.

View Article and Find Full Text PDF

Introduction: Globally, B-mode ultrasound is the most common modality used for the diagnosis of hepatic steatosis. We aimed to assess the correlation between qualitative liver ultrasound parameters, attenuation imaging (ATI) and histopathology-diagnosed steatosis grade obtained from liver biopsy. Our secondary aim was to examine the interobserver variability of qualitative ultrasound features.

View Article and Find Full Text PDF