Publications by authors named "E Barthel"

Objective: This study describes the perceptions, personal and community experiences, and barriers to care of Somali-American families regarding specialized maternal-fetal care from their viewpoint.

Study Design: We conducted a semi-structured focus group study of Somali-American women (March 2023). We used qualitative analysis techniques to identify and report thematic findings.

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Drying oils such as linseed oil form a polymer network through a complex free-radical polymerization process. We have studied polymerization in this challenging class of polymers using a quartz crystal microbalance (QCM). The QCM is able to measure the evolution of polymer mass and mechanical properties as the oil transitions from a liquid-like to a solid-like state.

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Article Synopsis
  • The mechanical properties of drug carriers, like lipid nanoparticles (LNPs), are vital for effective drug delivery, but reliable measurement techniques are lacking.
  • Researchers used atomic force microscopy (AFM) to investigate the mechanical properties of LNPs loaded with either pDNA or mRNA.
  • The study found that pDNA-LNPs undergo irreversible deformation under indentation, while mRNA-LNPs remain reversible, suggesting a connection between the mechanical behavior of LNPs and their delivery efficiency.
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  • No established protocols for fetal cardiac monitoring exist for fetoscopic myelomeningocele (fMMC) repair; the study aimed to assess the feasibility of continuous fetal echocardiography during this procedure and correlate Doppler changes with fetal cardiac function.
  • Continuous fetal echocardiography was conducted in real-time for patients undergoing fMMC repair, monitoring various cardiac indicators including fetal heart rate and blood flow in different vessels.
  • While abnormalities were found in several patients, especially in umbilical artery flow, most cardiac functions remained normal, indicating that continuous monitoring can be effectively implemented during fMMC surgeries with minor temporary changes.
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Solidification is a heterogeneous transformation from liquid to solid, which usually combines transport, phase transition and mechanical strain. Predicting the shapes resulting from such a complex process is fascinating and has a wide range of implications from morphogenesis in biological tissues to industrial processes. For soft solids initially at equilibrium, elastic stresses, whether tensile or compressive, can be induced by heterogeneous volumetric deformations of the material.

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