Using National Longitudinal Survey of Youth data, the authors examine the effect of smoking on wages. Their analysis controls for differences in individual characteristics that may be correlated with both smoking and wages, including unobservable person-specific characteristics that are constant over time, and unobservable characteristics that are constant within a family. Estimates from altern...

BACKGROUND Skeletal muscle dysfunction is common in chronic obstructive pulmonary disease (COPD), a disease mainly caused by chronic cigarette use. An important proportion of patients with COPD have decreased muscle mass, suggesting that chronic cigarette smoke exposure may interfere with skeletal muscle cellular equilibrium. Therefore, the main objective of this study was to investigate the ki...

Pneumonia was the leading common cause of death in young children in Bangladesh. 351 patients of Pneumonia below five years of age were selected as per WHO guidelines. Out of 351 patients, one patient died due to very severe pneumonia that had history of low birth weight and malnutrition. The following factors were taken into consideration such as age, sex, low birth weight, feeding pattern, ma...

there has been a recent development and explosion of interest among academicians across a wide range of disciplines in the use of virtual class room. utilization of the virtual class room as a laboratory experimentation for teaching and learning has increased significantly in recent years as development tools for web based applications have become easier to use and computers have become more ca...