Evaluating modal reservation efficiency before and after failure

Ventilatory efficiency before and after lung volume reduction surgery.

BACKGROUND Lung volume reduction surgery (LVRS) has been shown to improve the clearance of carbon dioxide and minute ventilation (V̇E) in select patients with COPD. One variable often assessed in COPD is ventilatory efficiency (V̇E/V̇CO2 ). METHODS We compared 55 LVRS subjects with 25 controls from the National Emphysema Treatment Trial. V̇E/V̇CO2 was calculated from cardiopulmonary exercise testi...

A Comparison of the Efficiency and Effectiveness of Radiology Departments in Hospitals before and after Digital System Implementation

Background and Objectives: Considering the importance of the radiology department, which devours most of the financial resources, efficiency and effectiveness in this department is one of the main concern of policymakers in most health care systems. The aim of this study was to investigate the efficiency and effectiveness of a radiology department before and after the implement...

Comparison of Hospital Efficiency and Performance Indices before and after the Implementation of Public-Private Partnership Model: A Case Study

Background and Objectives: Public– Private Partnership can increase the hospital efficiency as the main goal of a good management in healthcare. Hospital efficiency in utilizing resources can be measured through specific indices and analysis of data, after which we can expect to improve productivity in the system. Analysis of performance indices can be useful to achieve to the ...

Before After Before After

Evaluating Policies for Reservation-based Intersection Control

Autonomous vehicle navigation in urban road networks will be possible in the future, making traveling yet another activity that does not need the human intervention. In this paper we empirically evaluate different policies to manage a reservation-based intersection, an infrastructure facility proposed by Dresner and Stone to regulate the transit of vehicles through intersections. We evaluate tw...