Eighth Annual Society of Thoracic Surgeons Pedimacs Report.

Background: The Pediatric Interagency Registry for Mechanical Circulatory Support (Pedimacs), supported by The Society of Thoracic Surgeons, provides detailed information on pediatric patients supported with ventricular assist devices (VADs).

Methods: From September 19, 2012, to December 31, 2023, there were 1648 devices in 1349 patients (<19 years) from 39 North American Hospitals with 100 patients enrolled in 2023.

Results: Cardiomyopathy was the most common underlying etiology (59%), followed by congenital heart disease (26%) and myocarditis (8%).

Changes in Emergency Department Practices After Implementation of a Standardized Heavy Menstrual Bleeding Guideline.

Objective: The aim of the study is to assess the effect of an emergency department (ED) standardized clinical guideline for adolescent heavy menstrual bleeding on the rate of return ED visits and ED provider history-taking and management of this condition.

Methods: This was a retrospective cohort study. Patients less than 18 years old presenting to a single academic children's hospital ED between 2010 and 2020 with a chief complaint of heavy menstrual bleeding were included.

Effect of the 1D/2D dimensionality in copper and silver thiolate coordination polymers on their photophysical properties.

A series of four new copper and silver-thiolate, [M(-SPhCOR)] (M = Cu, Ag and R = H, Me), coordination polymers is reported. The study shows that the hydrogen bonding between the carboxylic acids directs the formation of a 2D structure associated with poor photoemission, while the steric hindrance of the ester groups allows the assembly of a 1D network coupled with bright luminescence.

Barnadesieae, Gochnatieae, Mutisieae and Nassauvieae (Asteraceae) in the Atlantic Forest of Caparaó National Park, Brazil.

Asteraceae is highly diverse in the Atlantic Forest, especially in montane environments. The early-diverging tribes within Asteraceae are of particular interest because of their great representation in Brazil and unique features within the family. Thus, a floristic inventory and systematic treatment of these basal grade in Caparaó National Park, an important remnant of Atlantic Forest that has been highlighted for its diversity and endemism, were undertaken.