42 citations
5 papers
RNA Identification and Detection of Nucleic Acids as Aerosols in Air Samples by Means of Photon and Electron Interactions
Luca J. Tagliapietra, John I. Adlish, Piero Neuhold +1
This study presents a methodology to reveal traces of viral particles, as aerosol with known chemical and molecular structure, in a sample by means of photon and electron interacti…
Polyethylene Identification in ocean water samples by means of 50 keV energy electron beam
J. I. Adlish, D. Costa, E. Mainardi +3
The study presented hereafter shows a new methodology to reveal traces of polyethylene (the most common microplastic particles, known as a structure of C_2 H_4) in a sample of ocea…
Rubber rolling over a sphere
Jair Koiller, Kurt M. Ehlers
``Rubber'' coated rolling bodies satisfy a no-twist in addition to the no slip satisfied by ``marble'' coated bodies. Rubber rolling has an interesting differential geometric appea…
Nonholonomic systems via moving frames: Cartan equivalence and Chaplygin Hamiltonization
Kurt Ehlers, Jair Koiller, Richard Montgomery +1
A nonholonomic system consists of a configuration space Q, a Lagrangian L, and an nonintegrable constraint distribution H, with dynamics governed by Lagrange-d'Alembert's principle…
Moving frames for cotangent bundles
J. Koiller, P. de M. Rios, K. M. Ehlers
Cartan's moving frames method is a standard tool in riemannian geometry. We set up the machinery for applying moving frames to cotangent bundles and its sub-bundles defined by non-…