The Advanced Cardiac Therapies Improving Outcomes Network (ACTION) and Pediatric Heart Transplant Society (PHTS) convened a working group at the beginning of 2020 during the COVID-19 pandemic, with the aim of using telehealth as an alternative medium to provide quality care to a high-acuity paediatric population receiving advanced cardiac therapies. An algorithm was developed to determine appropriateness, educational handouts were developed for both patients and providers, and post-visit surveys were collected. Telehealth was found to be a viable modality for health care delivery in the paediatric heart failure and transplant population and has promising application in the continuity of follow-up, medication titration, and patient education/counselling domains.

Understanding spatial variation in origination and extinction can help to unravel the mechanisms underlying macroevolutionary patterns. Although methods have been developed for estimating global origination and extinction rates from the fossil record, no framework exists for applying these methods to restricted spatial regions. Here, we test the efficacy of three metrics for regional analysis, using simulated fossil occurrences. These metrics are then applied to the marine invertebrate record of the Permian and Triassic to examine variation in extinction and origination rates across latitudes. Extinction and origination rates were generally uniform across latitudes for these time intervals, including during the Capitanian and Permian–Triassic mass extinctions. The small magnitude of this variation, combined with the possibility of its attribution to sampling bias, cautions against linking any observed differences to contrasting evolutionary dynamics. Our results indicate that origination and extinction levels were more variable across clades than across latitudes.

Stakeholder engagement is increasingly expected by funders and valued by researchers in clinical and translational science, yet many researchers lack access to expert consultation or training in selecting appropriate stakeholder engagement methods. We describe the development of a novel Stakeholder Engagement Navigator webtool. We conducted an environmental scan and literature review, along with investigator interviews, surveys, and engagement expert facilitated group discussion. We formally reviewed and cataloged 29 distinct engagement methods. To develop the webtool, we used an iterative design process that followed Design Thinking phases: empathize, define, ideate, prototype, and test. As prioritized during user testing, the Stakeholder Engagement Navigator webtool both educates and guides investigators in selecting an engagement method based on key criteria. The V1.0 Navigator webtool filters methods first by purpose of engagement (noted by 62% of users as the highest priority criteria), then by budget, time per stakeholder interaction, and total interactions. The tool is available at DICEMethods.org. The Stakeholder Engagement Navigator webtool is a user-centered, interactive webtool suitable for use by researchers seeking guidance on appropriate stakeholder engagement methods for clinical and translational research projects.

Betavoltaics (BV) cells (or nuclear batteries) have long-lasting power and high volumetric energy densities that open a broad range of applications that are not currently available, especially in low-power electronics for the internet-of-things, internal medical devices, and harsh environments. The introduction of very low-power electronics has opened up a market for the wide and accepted use of BV cells. As BVs have potentially decades-long useful lifetimes and are anticipated to be used in harsh environments, a method to describe accelerated contact aging has been developed. Monte Carlo radiation simulations show that energy can be deposited in the interface 10-50 times faster than real-world applications. The models can be used to design contact aging experiments for BV cell deployments.