Can we select two colors simultaneously?

Can Musicians Track Two Different Beats Simultaneously?

Can we select health professionals who provide safer care.

In order to improve patient safety, health services are looking to other industries' experiences and as a result are adopting a systems approach to learning from error, rather than simply focusing the blame on the individual. However, in health care the individual will remain an important contributor to safety and this paper looks at other literatures besides health to consider a number of indi...

Luminance contours can gate afterimage colors and "real" colors.

It has long been known that colored images may elicit afterimages in complementary colors. We have already shown (Van Lier, Vergeer, & Anstis, 2009) that one and the same adapting image may result in different afterimage colors, depending on the test contours presented after the colored image. The color of the afterimage depends on two adapting colors, those both inside and outside the test. He...

Cutting two graphs simultaneously

Consider two graphs, G1 and G2, on the same vertex set V , with |V | = n and Gi having mi edges for i = 1, 2. We give a simple algorithm that partitions V into sets A and B such that eG1(A,B) ≥ m1/2 and eG2(A,B) ≥ m2/2−∆(G2)/2. We also show, using a probabilistic method, that if G1 and G2 belong to certain classes of graphs, (for instance, if G1 and G2 both have a density of at least 2/3, or if...

Can We Add Auricular Composite Graft to Our Rhinoplasty Armamentarium?

BACKGROUND The ala of the nose, with its particular texture and characteristics, poses both aesthetically and functionally intriguing challenges and is rather problematic regarding choices for reconstructive methods. Both flaps and grafts have been used to restore natural structure of nasal ala. The present study summarizes a ten-year experience of reconstructive surgery using small composite...