Behind phyllotaxis, within the meristem: a REM-ARF complex shapes inflorescence in Arabidopsis thaliana.

Inflorescence architecture is established during the early stages of reproductive development and depends on the activity and identity of meristems. In Arabidopsis thaliana, the floral meristems (FMs), which will develop into flowers, arise with precise spatiotemporal regulation from the inflorescence meristem (IM). The outcome of this process is a geometrically organized structure characterized by a reiterated pattern called phyllotaxis, in which successive organs arise at specific divergence angles of 137.

Let the resident try: Evaluation of central venous catheter placement in patients with hypotensive trauma using trauma video review.

Background: Intraosseous access has the greatest initial success rate in patients with hypotensive trauma and is significantly faster than central venous catheter access. However, central venous catheters play a critical role in the resuscitation of patients with hypotensive trauma. We sought to identify factors associated with successful placement of central venous catheter and hypothesized that attending surgeons would be more successful than trainees in the placement of central venous catheters.

The effects of markerless inconsistencies are at least as large as the effects of the marker-based soft tissue artefact.

The soft tissue artefact is a well-known issue for marker-based motion analysis and markerless motion analysis is by definition free from this artefact. The goal of this study is to compare the limb skeletal inconsistencies generated by the neural networks in markerless motion capture and generated by the soft tissue artefact in marker-based motion capture using retrospective data. Sixteen volunteers were included and were asked to perform four motor tasks (walk, sit-to-stand, stand-to-sit, countermovement jump) acquired with ten optoelectronic cameras and ten video cameras.

Changes in multidisciplinary perceptions of trauma video review following implementation of a novel program: let us go to the tape.

Background: Trauma video review (TVR) is an evolving technology that can be used to measure technical and non-technical aspects of trauma care leading to meaningful improvements. Only 30% of centers currently use TVR, with non-users citing medicolegal concerns, staff discomfort with recording, and resource constraints as barriers to implementation. Multiple studies have shown established TVR programs are well-perceived by staff.

Pancreaticoduodenectomy in trauma patients with grade IV-V duodenal or pancreatic injuries: a post hoc analysis of an EAST multicenter trial.

Introduction: The utility of pancreaticoduodenectomy (PD) for high-grade traumatic injuries remains unclear and data surrounding its use are limited. We hypothesized that PD does not result in improved outcomes when compared with non-PD surgical management of grade IV-V pancreaticoduodenal injuries.

Methods: This is a retrospective, multicenter analysis from 35 level 1 trauma centers from January 2010 to December 2020.