The pathological features in the lung in asbestosis and cryptogenic fibrosing alveolitis are similar. Patients with asbestosis, however, appear to have less severe impairment of transfer factor (TLCO) than those with fibrosing alveolitis for a given level of radiographic abnormality when assessed on the basis of the International Labour Organisation (ILO) profusion score. The impairment of lung...

Abstract In this paper we study the viability of solving Chinese Postman Problem, a graph routing optimization problem, and many its variants on quantum annealing device. Routing problem considered include type, directionally varying weights, number parties involved in routing, among others. We put emphasis explanation how to convert such problems into quadratic unconstrained binary (QUBO) prob...

Data on 1432 patients with silicosis on a register in Hong Kong were analysed to examine the association of massive fibrosis with possible predisposing factors. Detailed occupational and clinical histories, clinical records, radiographic readings according to the International Standard Classification of Radiographs of Pneumoconioses, and environmental dust measurements from hygiene surveys were...

STUDY OBJECTIVE To assess the efficacy of the chest radiograph in identifying patients with miliary tuberculosis. DESIGN Retrospective case-controlled review by three independent blinded chest radiologists. SETTING Provincial tuberculosis control center. PATIENTS Population-based sample, including all proved cases of miliary tuberculosis diagnosed in the Province of British Columbia, Cana...

BACKGROUND Exercise impairment is common in subjects with asbestosis. Arterial oxygen desaturation during exercise is an important contributor to exercise limitation. The International Labour Office (ILO) classification of plain chest radiographs correlates with resting pulmonary function, but its value in predicting abnormal ventilatory responses to exercise, including desaturation, has not be...

OBJECTIVES To describe the radiographic changes in coalworkers exposed to unusual concentrations of respirable quartz during the 1970s, and to relate these to exposure measurements. METHODS Men who had worked at one Scottish colliery during the 1970s were invited to a health survey. Chest radiographs were taken from 547 subjects. Classifications of these films under the International Labour O...

A profusion of new software patents on Internet business methods puts our notions of intellectual property to the biggest test yet.