The case is presented of a coal miner with bilateral masses of progressive massive fibrosis, who developed acute cavitation following fibreoptic bronchoscopy and biopsies. Indeed, immediately upon bronchoscopy with transbronchial biopsy, there was expectoration of abundant melanoptysis. Three days later, the chest radiograph showed a cavity and the patient again coughed up black material, in th...

Since then, Tesco has expanded across the world. It now has over 2,200 stores including hypermarkets and Tesco Express outlets to meet different customer needs. As a conglomerate Tesco also offers alternative goods and services such as insurance, banking and online shopping. With net profits of around £3.4 billion Tesco has become the largest British retailer and one of the world's leading reta...

How do information technology capabilities contribute to firm performance? This study develops a conceptual model linking IT-enabled information management capability with three important organizational capabilities (customer management capability, process management capability, and performance management capability). We argue that these three capabilities mediate the relationship between infor...

Phyllite and quartzite, probably Precambrian, trend meridionally and dip steeply in the New River Gorge above the junction with the Salisbury River in southern Tasmania. Further upstream an association of silty dolomite and conglomerate is less deformed and may be younger. Siliceous conglomerate boulders occur in the New River below the gorge. Late Ordovician carbonates of the Gordon Group are ...

The most common cause of cavitation in progressive massive fibrosis (PMF) in patients with silicosis is infection with Mycobacterium tuberculosis. However, cavitation of PMF as a result of ischaemic necrosis has also ben identified as a rare entity in silicosis. A 40-year-old male, non-smoker, working as a stonecutter for 30 years presented with a five years history of exertional breathlessness...

We document a trend towards fewer and more-focused conglomerates, and develop a model that explains these patterns based on increasing technological specialization. In the model, diversification adds value by allowing efficient within-firm resource reallocation. However, synergies decrease with technological specialization, leading to fewer diversified firms over time. Also, the optimal level o...