Clinical Conundrum: Climbing at the Extremes of High Elevation with Nonischemic Cardiomyopathy.

Cornwell, William, Aaron L Baggish, Christoph Dehnert, Benjamin D Levine, and Andrew M Luks. Clinical Conundrum: Climbing at the Extremes of High Elevation with Nonischemic Cardiomyopathy. 00:00-00, 2024.

Faster than expected: release of nitrogen and phosphorus from decomposing woody litter.

Deadwood represents globally important carbon (C), nitrogen (N), and phosphorus (P) pools. Current wood nutrient dynamics models are extensions of those developed for leaf litter decomposition. However, tissue structure and dominant decomposers differ between leaf and woody litter, and recent evidence suggests that decomposer stoichiometry, in combination with litter quality, may affect nutrient release.

Exercise Testing in Elite Athletes.

Exercise testing is frequently incorporated into management of patients with cardiovascular and/or pulmonary disease. A lifelong commitment to exercise promotes cardiac remodeling, leading to changes in structure and function of the atria and ventricles, commonly referred to as the "athletic heart." Stress testing is also incorporated into the management of athletes for a variety of reasons, such as identifying the cause of exertional symptoms, determining level of fitness and training zones, or assessing for acquired cardiomyopathies.

The landscape genetics of a mass-flowering fire-ephemeral plant.

Premise: Obligate fire ephemerals are annual plants that have germination and reproduction cued by fire occurrence, persisting between fire events in a long-lived soil seed bank. Within these species, gene flow is restricted not only geographically but also temporally because individuals are limited to reproducing with others affected by the same fire event. The patchwork-like distribution of fires may therefore promote population isolation.