Preparation and characterization of a certified reference material of toxic elements in cannabis leaves.

The quantification of harmful elements in cannabis is a relevant analytical task that requires metrological tools to ensure the reliability of the measurement results. This work reports the preparation and characterization of a certified reference material (CRM) for toxic elements-arsenic (As), cadmium (Cd), and lead (Pb)-in pulverized, lyophilized cannabis leaf tissue. To prepare the CRM INM-040-1, a portion of dried ground cannabis vegetal material was spiked with the elements at mass fraction values close to the levels of interest in relevant regulations for this kind of matrix: 0.

Integrated clinico-molecular analysis of gastric cancer in European and Latin American populations: LEGACY project.

Background: Gastric cancer (GC) is recognized for intrinsic heterogeneity, although it is similarly approached in Europe and Latin America (LATAM). The LEGACY project aimed to deepen GC molecular understanding through multi-omics analysis in Europe and LATAM GC samples.

Patients And Methods: Tumor samples were centrally reviewed for histology, human epidermal growth factor receptor 2 (HER2) expression, and mismatch repair-deficient (dMMR)/microsatellite instability (MSI) status.

TriSwinUNETR lobe segmentation model for computing DIR-free CT-ventilation.

Purpose: Functional radiotherapy avoids the delivery of high-radiation dosages to high-ventilated lung areas. Methods to determine CT-ventilation imaging (CTVI) typically rely on deformable image registration (DIR) to calculate volume changes within inhale/exhale CT image pairs. Since DIR is a non-trivial task that can bias CTVI, we hypothesize that lung volume changes needed to calculate CTVI can be computed from AI-driven lobe segmentations in inhale/exhale phases, without DIR.

Feasibility and acceptability of an online epilepsy stigma self-management program.

Introduction: Stigma is a prevalent source of distress in people with epilepsy. We developed a self-paced online stigma self-management program for adults with epilepsy (Reducing Internalized Stigma in Epilepsy: A Behavioral Online Video Education, RISE ABOVE).

Materials And Methods: Twenty socio-demographically diverse participants completed RISE ABOVE over an average of 3.