CONTEXT Patients in rural areas may use less medical care than those living in urban areas. This could be due to differences in travel distance and time and a utilization of a different mix of generalists and specialists for their care. PURPOSE To compare the travel times, distances, and physician specialty mix of all Medicare patients living in Alaska, Idaho, North Carolina, South Carolina, ...

Research on direct sources of information for the perception and cognition of environmental distance is reviewed. Environmental distances are relatively large and cannot be perceived in entirety from a single place. Directly-acquired knowledge of en~ronmental distance is based on the sensorimotor apprehension of information from the body or from the environment during locomotion. The paper is o...

An e,;perimental technique for the investigation of the behaviour of acoustic wave propagation through a turbulent medium is discussed. The present study utilizes the ultrasonic travel-time technique to di­ agnose a grid-generated turbulence. Travel-time variance is studied versus mean Dow velocity. travel distance and outer turbulence scale. The effect of therma.l fluctuations. which result in...

OBJECTIVE To evaluate the acceptability and efficacy of medical abortion at home up to 63 days' gestation without limits on travel distance to a registered institution. DESIGN Observational prospective study. SETTING Haukeland University Hospital between May 2006 and May 2009. POPULATION A total of 1018 women requesting abortion before 63 days' gestation who chose medical termination with...

Travel to procure deceased donor organs is associated with risk to transplant personnel. In many instances, multiple teams are present for a given operation. We studied our statewide experience to determine how much excess travel this redundancy entails, and generated alternate models for organ recovery. We reviewed our organ procurement organization's experience with deceased donor operations ...