This paper explores fast reconstruction strategies for 3D time-of-flight (TOF) PET, based on 2D data rebinning. We introduce TOF-FORE, an approximate rebinning algorithm obtained by extending the Fourier rebinning method for non-TOF data. In addition, we identify two partial differential equations that must be satisfied by consistent 3D TOF data, and use them to derive exact rebinning algorithm...

The relations among swing, stance and step durations for the fore and hind limbs were investigated. Registration of the swing and stance phases was performed by the opening and closing of an electrical circuit as the cat moved along the conductive pathway. In the walking animal, longer swing and shorter stance durations for hind limbs, in comparison with the fore limbs, were observed. However, ...

Kuru, the first human neurodegenerative disease classified as a transmissible spongiform encephalopathy (TSE), prion disease or, in the past, as a slow unconventional virus disease, was first reported to Western medicine in 1957 by Gajdusek and Zigas. A complete bibliography of kuru through 1975 has been published by Alpers et al. The solution of the kuru riddle opened a novel field of biomedic...

The COVID-19 pandemic is compelling us to make crucial data-driven decisions quickly, bringing together diverse and unreliable sources of information without the usual quality control mechanisms we may employ. These are consequential at multiple levels: They can inform local, state, national government policy, be used schedule access physical resources such as elevators workspaces within an org...