Frequent, heterogenous fire supports a forest owl assemblage.

Fire shapes biodiversity in many forested ecosystems, but historical management practices and anthropogenic climate change have led to larger, more severe fires that threaten many animal species where such disturbances do not occur naturally. As predators, owls can play important ecological roles in biological communities, but how changing fire regimes affect individual species and species assemblages is largely unknown. Here, we examined the impact of fire severity, history, and configuration over the past 35 years on an assemblage of six forest owl species in the Sierra Nevada, California, using ecosystem-scale passive acoustic monitoring.

Squamous Cell Carcinomas of the Sinonasal Region and Temporal Bone Diagnosed After Recurrences: A Report of Two Patients.

squamous cell carcinoma is a recently recognized entity characterized by a non-viral-related non-keratinizing squamous cell carcinoma with chromosomal rearrangement between on 6p22.3 and on Xq28. This neoplasm is associated with an aggressive clinical behavior, particularly regarding local recurrences and distant metastases even with its deceptively bland histomorphology.

Accounting for the role of the gastro-intestinal tract in the ammonia and urea-N dynamics of freshwater rainbow trout on long-term satiation feeding.

The contribution of the gut to the ingestion, production, absorption, and excretion of the extra ammonia and urea-N associated with feeding ("exogenous" fraction) has received limited prior attention. Analysis of commercial pellet food revealed appreciable concentrations of ammonia and urea-N. Long term satiation-feeding increased whole trout ammonia and urea-N excretion rates by 2.

Symptomatic glucocorticoid-induced adrenal suppression in the United Kingdom and Ireland: a BPSU study.

Objective: To determine the incidence and describe the presentation and management of unexpected symptomatic glucocorticoid-induced adrenal suppression (AS) in children and young people aged 0-15 years.

Setting And Design: Surveillance study of symptomatic glucocorticoid (GC)-induced AS with supportive biochemical evidence or presenting as an adrenal crisis, reported via the British Paediatric Surveillance Unit (BPSU) from September 2020 to September 2022.

Results: Over a 25-month period, 190 reports of symptomatic GC-induced AS/adrenal crisis were made, of which 22 were confirmed cases: 18 AS and 4 adrenal crises.

Death and survival of gut CD4 T cells following HIV-1 infection ex vivo.

The gastrointestinal tract is ground zero for the massive and sustained CD4 T cell depletion during acute HIV-1 infection. To date, the molecular mechanisms governing this fundamental pathogenic process remain unclear. HIV-1 infection in the gastrointestinal tract is associated with chronic inflammation due to a disrupted epithelial barrier that results in microbial translocation.