Visual search near threshold: Some features are more equal than others

Visual search near threshold: Some features are more equal than others.

While searching for objects, we combine information from multiple visual modalities. Classical theories of visual search assume that features are processed independently prior to an integration stage. Based on this, one would predict that features that are equally discriminable in single feature search should remain so in conjunction search. We test this hypothesis by examining whether search a...

When some are more equal than others.

Some hematopoietic stem cells are more equal than others

Hematopoietic stem cells (HSCs) save lives in routine clinical practice every day, as they are the key element in transplantation-based therapies for hematologic malignancies. The success of clinical stem cell transplantation critically relies on the ability of stem cells to reconstitute the hematopoietic system for many decades after the administration of the powerful chemotherapy and/or irrad...

Internet Newspapers: Are Some More Equal than Others?

In 450 years of existence, the written press has never faced a change with the intensity and consequences as those of the Internet. The decision of going online represents a whole set of opportunities and threats that publishers must carefully weigh. Once they have made the step, newspapers find themselves in a completely different competitive environment. They deal with different competitors, ...

Metazoan Evolution: Some Animals Are More Equal than Others

Comparison of newly available sequence data facilitates reconstruction of the gene inventory of the Urbilateria, the last common ancestor of flies, nematodes and humans. The most surprising outcome is that human genes seem to be closer to the bilaterian roots than previously assumed.