Dataset on the qualitative characteristics of roselle varieties (Hibiscus sabdariffa L.).

Roselle (Hibiscus sabdariffa L.) is a worldwide known species of great importance due to its medicinal properties and pleasant flavor. In Paraguay, it is used as an alternative crop by family-run farmers; however, the varieties used in the country are unknown, so no information is available on this crop. The qualitative characterization would collect knowledge serving as a basis for the registration of varieties produced in Paraguay. In addition, such data are useful for future genetic improvement programs considering this crop. The present work was carried out at the Multidisciplinary Center for Technological Research and the experimental farmland of the Faculty of Agricultural Sciences of the National University of Asuncion, during the years 2022 and 2023. The main objective was to carry out a morphological characterization of four Roselle varieties: Ana Delia, Benito, Dogo, and Creole. The design consisted of completely randomized blocks, with four treatments (varieties) and four replications; each experimental unit (block) was composed of 24 plants, distributed in four rows; 12 plants, selected from the central rows, were harvested for the evaluations. Stem color, leaf shape, leaf margin, rib color, petiole color, flower color, calyx color, calyx sepal opening, capsule shape, capsule color, capsule anthocyanin coloration, and pubescence level were evaluated. The results demonstrate qualitative differences between the varieties, which help to compare and classify them for a better variety selection.

Interobserver variability in target volume delineation in postoperative radiochemotherapy for gastric cancer. A pilot prospective study

INTRODUCTION: The aim of this study is to determine the interobserver variability (IV) between radiation oncologists (RO) in target volume delineation for postoperative gastric cancer (GC) radiotherapy planning. MATERIALS AND METHODS: Four physicians were asked to delimitate clinical target volume (CTV) on the same 3D CT images in 9 postoperative radiochemotherapy GC patients. Instructions were given to include tumour bed, remaining stomach, anastomosis, duodenal loop and local lymph nodes. The principal variable was spatial volume discrepancy between the main observer (called "A") and other observers (all called "B"), which were compared using the mathematical formula A⌣B/A⌢B, applied to the 3D CT images using Boolean operators. Analysis of variance with two random effects (observers and patients) was performed. RESULTS: Mean volumes were 1410 cm(3) for OBA, 1231 cm(3) for OB2, 734.6 cm(3) for OB3 and 1350 cm(3) for OB4. Discrepancies were 519.9±431.6 cm(3) for OB2, 652.1±294.36 cm(3) for OB3 and 225.90±237.07 cm(3) for OB4. Standard deviation ascribed to patients as random effect was 898.6 cm(3) and that ascribed to observers was 198.10 cm(3), considered as a statistically significant difference. CONCLUSIONS: A significant IV in target delineation that can be attributed to many factors depends more on patients' characteristics than RO delineating decisions (AU)

Evaluación de indicadores indirectos de salud mental en los barrios El Paraíso, Sucre y San Martín de Bogotá / evaluation of indirect indicators of mental health in the districts El Paraíso, Sucre y San Martín from Bogotá

Con el objetivo principal de identificar factores de riesgo capaces de generar enfermedad mental se llevó a cabo un estudio de corte transversal. Se realizaron 300 encuestas en una muestra de familias de tres barrios del nororiente de Bogotá, en las que se interrogaba sobre variables socio económicas y psicosociales identificadas previamente