Access network is the last mile of the communication network that connects the telecom Central Office (CO) to the residential and business customers. With the proliferation of the Internet, customer demands for bandwidth-intensive services are rapidly increasing. Access network comprises a large part of the Internet. It is a major energy consumer in the Internet due to the presence of huge numb...

INTRODUCTION In 2012, 10% of Canadians used cannabis and just under half of those who use cannabis were estimated to have driven under the influence of cannabis. Substantial evidence has accumulated to indicate that driving after cannabis use increases collision risk significantly; however, little is known about the extent and costs associated with cannabis-related traffic collisions. This stud...

This article describes a low cost retrofit technology that uses collective control of multiple rooftop air conditioning units to reduce the peak power consumption of small and medium commercial buildings. The proposed control uses a thermal model of the building and air conditioning units to select an operating schedule for the air conditioning units that maintains a temperature set point subje...

The 1,652 additional lives saved in all 38 States and the District of Columbia resulting from the increase in seat belt use would represent an increase of 11 percent above the estimate of lives saved by seat belts (15,147) for 2007. Over 50 percent of the total benefits in lives saved (842 out of the total of 1,652 lives saved), non-fatal injuries saved (22,677 out of the total of 39,486 non-fa...

BACKGROUND Gavi recommends solar refrigerators for vaccine storage in areas with less than eight hours of electricity per day, and WHO guidelines are more conservative. The question remains: Can solar refrigerators provide value where electrical outages are less frequent? METHODS Using a HERMES-generated computational model of the Mozambique routine immunization supply chain, we simulated the...

BACKGROUND Sickle cell disease (SCD) is an inherited blood disorder which may result in a broad range of complications including recurring and severe episodes of pain--sickle 'crises'--which require frequent hospitalizations. We assessed the cost of hospitalizations associated with SCD with crisis in England. METHODS Hospital Episodes Statistics data for all hospital episodes in England betwe...

BACKGROUND Rotavirus vaccines are available in Spain from 2007. They are recommended by the Spanish Pediatric Association, but not funded by the National Health System (NHS) and its coverage rate reached 40-50%. The hospitalization rate reduction of rotavirus caused gastroenteritis (RVAGE) directly attributable to vaccination remains unclear due to the large differences described in published s...

Traditional intra-firm cost accounting tools are not appropriate in the context of supply chain management. Various costing approaches such as activity based costing (ABC), target costing and open book accounting have been introduced to provide timely, accurate and relevant financial information for enable supply chain managers to make and execute effective decision-making. The author also argu...

BACKGROUND Many decisions can be understood in terms of actors' valuations of benefits and costs. The article investigates whether this is also true of patient medical decision making. It aims to investigate (i) the importance patients attach to various reasons for and against nine medical decisions; (ii) how well the importance attached to benefits and costs predicts action or inaction; and (i...