Beyond Rock Glaciers: Investigating Meltwater Contribution and Water Quality in High‐Mountain Springs From Different Landforms

Animation as a visual bridge between science and society

Scientific knowledge has always depended on images, especially when it addresses phenomena that escape direct sensory perception. This introduction sketches the privileged yet problematic role of animation in figuring the “invisible” within contemporary science communication, pointing out some connected epistemological and ethical questions. In fact, the increasing visual coherence, realism, and interactivity of animated models can ...

Granular drag and lift force on a flexible fiber

In this work, we investigate the forces acting on a flexible fiber dragged through a granular bed. Using discrete element simulations, we observe that, after a sufficiently large displacement, the system reaches a steady state in which both the fiber's shape and the forces acting on it become, on average, constant. Under these conditions, we identify two characteristic lengths that describe the fiber's shape and propose unique scaling laws for the drag and lift forces, valid across a wide ran...

Search for heavy neutral leptons using tau lepton decays at BABAR

This article presents a model-independent search for an additional, mostly sterile, heavy neutral lepton (HNL), that is capable of mixing with the Standard Model τ neutrino with a mixing strength of |Uτ4|2, corresponding to the absolute square of the extended Pontecorvo-Maki-Nakagawa-Sakata matrix element. Data from the BABAR experiment, with a total integrated luminosity of 424 fb-1, are analyzed using a kinematic approach that makes no assumptions on the model behind the origins of the HNL,...