Abstract F-theory/heterotic duality is formulated in the stable degeneration limit of a K3 fibration on the F-theory side.In this note, we analyze the structure of the stable degeneration limit.We discuss whether stable degeneration exists for pairs of rational elliptic surfaces.We demonstrate that, Pickleball Set when two rational elliptic surface
Mapping Quaking Aspen Using Seasonal Sentinel-1 and Sentinel-2 Composite Imagery across the Southern Rockies, USA
Quaking aspen is an important deciduous tree species across interior western U.S.forests.Existing maps of aspen distribution are based on Landsat imagery and often miss small stands (2), which rapidly regrow when managed or following disturbance.In this study, we present methods for deriving a new regional map of aspen forests using one year of Sen
Cesarean hysterectomy for placenta accreta spectrum: 3-2-1 approach
Given the high risk of complications associated with cesarean hysterectomy for placenta accreta spectrum (PAS), any surgical approach and technique can yield utility in reducing the surgical morbidity.Here, we propose the 3-2-1 approach as a schema to be implemented in the proper setting for the surgical management of a PAS cesarean hysterectomy.Th
Nuclear heating measurements by gamma and neutron thermometers
A gamma thermometer suitable for very high gamma heating levels (up to 20 W/g) has been designed and modelled by means of detailed finite element calculations.Based on a sensitivity analysis, the predicted accuracy of this gamma thermometer is better than 5 %.A novel miniaturized gamma thermometer is proposed in which a single thermocouple is used