Progressive collapse is defined as the spread of an initial failure from element to element, eventually resulting in the collapse of an entire structure or a disproportionately large part of it. The current progressive collapse analyses and design methods in guidelines and codes focus on the alternate load path method. This method is suitable especially in the case of blast-induced progressive ...

BACKGROUND Despite significant progress made in reducing dust exposures in underground coal miners in the United States, severe cases of coal workers' pneumoconiosis (CWP), including progressive massive fibrosis (PMF), continue to occur among coal miners. AIMS To identify US miners with rapidly progressive CWP and to describe their geographic distribution and associated risk factors. METHOD...

multiple sclerosis (ms) is a demyelinating disease of the central nervous system,with unknown etiology in which both genetic and environmental factors are thought to be involved. the hla system provides a set of genetic markers which lend themselves to systematic study. the disease also has variable clinical manifestations, ranging from a relapsing-remitting course to a chronic progressive dise...

OBJECTIVES We sought to assess whether hyperenhancement by gadolinium cardiovascular magnetic resonance (CMR) occurs in hypertrophic cardiomyopathy (HCM) and correlates with the risk of heart failure and sudden death. BACKGROUND The myocardial interstitium is abnormal in HCM at post-mortem. Focally increased interstitial myocardial space appears as hyperenhancement with gadolinium CMR. METH...

OBJECTIVES We sought to assess whether hyperenhancement by gadolinium cardiovascular magnetic resonance (CMR) occurs in hypertrophic cardiomyopathy (HCM) and correlates with the risk of heart failure and sudden death. BACKGROUND The myocardial interstitium is abnormal in HCM at post-mortem. Focally increased interstitial myocardial space appears as hyperenhancement with gadolinium CMR. METHODS ...

Multiple sclerosis is a CNS autoimmune disease configured by demyelination, inflammation, and degeneration of axons. This disease inflict great harms to patients. The most common problem is inability to control musculoskeletal system and decrease in mobility. These consequences could vary from patients to patients. About 10-15% of all MS patients develop primary progressive MS (PPMS). Despite t...

Viremic controllers and elite controllers/suppressors maintain control over HIV-1 replication. Some studies have suggested that control is a result of infection with a defective viral strain, while others suggested host immune factors have a key role. Here we document two HIV-1 transmission pairs: one consisting of a patient with progressive disease and an individual who became an elite suppres...

The role of the vascular endothelium in progressive renal disease is not well understood. This review presents evidence that progressive renal disease is characterized by a progressive loss of the microvasculature. The loss of the microvasculature correlates directly with the development of glomerular and tubulointerstitial scarring. The mechanism is mediated in part by a reduction in the endot...