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 ...

Growing recognition of the importance of health as a contributing factor to economic development and societal change has prompted the Proceedings of the National Academy of Sciences (PNAS) to add a ...

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 ...

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 Penn National Gaming needed a SAN to keep its data secure and available on a Mississippi riverboat casino, they called in storage solution provider Eagle Software, Salinas, Kan. Solution provider ...

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 ...

Some 70 representatives of the international Cluster scientific community came together last week for the 35th Cluster Science Working Team at the European Space Operations Centre (ESOC) in Darmstadt, ...

TensorWave Inc., a graphics processing unit cloud platform for artificial intelligence that’s focused on offering an alternative to Nvidia Corp.’s market dominance through Advanced Micro Devices Inc.