We present a simple sample-size formula for weighted log-rank statistics applied to clustered survival data with variable cluster sizes and arbitrary treatment assignments within clusters. This ...

This is a preview. Log in through your library . Abstract In the analysis of binary response data from many types of large studies, the data are likely to have arisen from multiple centers, resulting ...

Big data and cloud infrastructure is creating an innovation boom and massive business opportunity. Anytime a market is going under radical reformation there is an opportunity for any company to “move ...

Cell function is regulated by the spatiotemporal organization of the signaling machinery, and a key facet of this is molecular clustering. Here, we present a protocol for the analysis of clustering in ...

When a large number of people in a community come down with cancer, doctors and researchers try to find out if there's a root cause. For more information about cancer clusters, explore the questions ...

If you limit your analysis of the cloud DW space just to the MS-AWS lobe, you'll miss some important breakthroughs in the market. For example, Microsoft distinguishes its Azure SQL Data Warehouse from ...

MIAMI, Dec. 19 (UPI) --A Florida community rattled by an increase in brain cancer rates is awaiting state data that could determine whether they're living in a cancer cluster. In St. Lucie County, ...

Quantum this week announced software that not only manages file server environments, but de-duplicates data and allows for the dynamic allocation of resources. Quantum, which acquired ADIC last May, ...