This is not an Anniversary!

Neuroscience: This Is Not a Spider

Long-term memories of fear have been notoriously difficult to alter. A new study finds access through the window of reconsolidation.

This Is Not Your Grandfather's Emergency Department.

No, This is not a Circle

A curve, also shown in introductory maths textbooks, seems like a circle. But it is actually a different curve. This paper discusses some easy approaches to classify the result, including a GeoGebra applet construction.

Curiosity is addictive, and this is not an entirely good thing.

Hypertrophic osteoarthropathy and congenital heart disease: this is not casual.

This case presents a patient with congenital cyanotic heart disease in whom secondary hypertrophic osteoarthropathy was diagnosed. The symptoms of severe bilateral leg pain started 2 months before hospital admission. The presence of clubbing, painful swelling of the lower limbs and his comorbid condition roused the suspicion of hypertrophic osteoarthropathy and a skeleton radiograph of the lowe...