Ten Dollars and a Bus Ticket

Iterative Helical CT Reconstruction in the Cloud for Ten Dollars in Five Minutes

Iterative statistical X-ray CT reconstruction algorithms can improve image quality for low dose scans. Unfortunately, their clinical utility has been hampered by their enormous computational requirements; typical low-dose reconstructions require about an hour on commercial systems. Most existing parallel implementations use a shared memory programming model, limiting available parallelism. We i...

Digital-Ticket-Controlled Digital Ticket Circulation

This paper presents a new digital-ticket circulating scheme and trust management scheme for a digital ticket. A digital ticket is a digital medium that guarantees certain rights of the owner and it includes software licenses, resource access tickets, event tickets, and plane tickets. The circulation of digital tickets comprises three types of principal transactions: issuance, transfer, and rede...

A Model of Bus Drivers’ Diseases: Risk Factors and Bus Accidents

Bus accident is a major health problem for bus drivers.  To identify the risk factors involved in bus accidents and to design a model showing the relation between the risk factors and bus driver’s health status, 219 bus drivers who worked for travel agencies in two areas of west and central Iran were enrolled into this study.  We used a questionnaire to gather information regarding both the bus...

Ticket Sniping

INTRODUCTION ................................................................................... 243 BACKGROUND ...................................................................................... 245 I. THE ECONOMICS OF TICKET SNIPING ................................... 248 A. Long-term Revenue Maximization ....................................... 249 B. Inability to Price Discriminate .........

Money, Credit, and Euro-Dollars