Issues relating to extensive air showers observation by a space-borne fluorescence detector and the effects of clouds on the observations are investigated using Monte Carlo simulation. The simulations assume the presence of clouds with varying altitudes and optical depths. Simulated events are reconstructed assuming a cloud-free atmosphere. While it is anticipated that auxiliary instruments, su...

Abstract Due to the continued development of GLONASS satellites, precise orbit determination (POD) still poses a series challenges. This study examines impact introducing analytical tube-wing model for GLONASS-M and box-wing GLONASS-K in hybrid POD strategies that consider both empirical parameters. We assess perturbing accelerations acting on spacecraft based model. All satellites are equipped...

Of 30 consecutive children with hydrocephalus treated by shunt implant, six developed subdural haematoma. Four of them presented with a malfunctioning shunt, and the diagnoses in all six cases were made by CT scan.

Although it has become extremely common for scientists to make use of sophisticated instruments in combination with computational treatments of data in their observational practices, only the former has caused a debate among philosophers. Whether it is appropriate to make use of such instruments as telescopes, microscopes, PET scans, MRI devices and so forth is a question that has received vari...

Traffic signals and traffic flow models have been studied extensively in the past and have provided valuable insights on the design of signalling systems, congestion control, and punitive policies. This paper takes a slightly different tack and describes what happens at an intersection where the traffic signals are malfunctioning and stuck in some configuration. By modelling individual vehicles...