Publications by authors named "J R McMahon"

Introduction: Like many other academic medical centers, the University of Alabama at Birmingham (UAB) aspires to adopt learning health system (LHS) principles and practices more fully. Applying LHS principles establishes a culture where clinical and operational practices constantly generate questions and leverage information technology (IT) and methodological expertise to facilitate systematic evaluation of care delivery, health outcomes, and the effects of improvement initiatives. Despite the potential benefits, differences in priorities, timelines, and expectations spanning an academic medical center's clinical care, administrative operations, and research arms create barriers to adopting and implementing an LHS.

View Article and Find Full Text PDF

Purpose: Carcinogenesis of oral squamous cell carcinoma (OSCC) has long been associated with exposure to tobacco smoke and alcohol consumption. Some centres have reported that non-smoking non-drinking (NSND) patients represent a significant and increasing proportion of OSCC cases with reports of poorer outcomes. Demographic characteristics are variably reported for this group and carcinogenesis is not fully understood.

View Article and Find Full Text PDF

This work describes the design and implementation of optics for EXCLAIM, the EXperiment for Cryogenic Large-Aperture Intensity Mapping. EXCLAIM is a balloon-borne telescope that will measure integrated line emission from carbon monoxide at redshifts z < 1 and ionized carbon ([CII]) at redshifts z = 2.5 - 3.

View Article and Find Full Text PDF

Maladapted immigrants may reduce wild population productivity and resilience, depending on the degree of fitness mismatch between dispersers and locals. Thus, domesticated individuals escaping into wild populations is a key conservation concern. In Prince William Sound, Alaska, over 700 million pink salmon () are released annually from hatcheries, providing a natural experiment to characterize the mechanisms underlying impacts to wild populations.

View Article and Find Full Text PDF

Background: Aneurysmal subarachnoid hemorrhage (aSAH) is frequently complicated by permanent shunt-dependent hydrocephalus, but it is difficult to predict which patients are at highest risk.

Objective: This study seeks to identify novel variables associated with shunt dependency after aSAH and to create a predictive algorithm that improves upon existing models.

Methods: Retrospective case control design was used.

View Article and Find Full Text PDF