“No Clinical Puzzles More Interesting”

No Easy Puzzles: A Hardness Result for Jigsaw Puzzles

We show that solving jigsaw puzzles requires Θ(n ) edge matching comparisons, making them as hard as their trivial upper bound. This result generalises to puzzles of all shapes, and is applicable to both pictorial and apictorial puzzles.

PUZZLES Clinical presentation

To cite: Huang C-W, Kuo K-T, Lin C-M, et al. Thorax Published Online First: [please include Day Month Year] doi:10.1136/ thoraxjnl-2012-202335 A 74-year-old Asian female underwent a chest CT scan because of a pulmonary nodule observed on her chest radiograph (figure 1A). She complained of mild dyspnoea on exertion for few weeks. Her past history was significant for hypertension and obesity (bod...

Centrosomes: Central no more?

It has recently been found that the zygotic development of a morphologically normal fly can occur without properly functioning mitotic centrosomes. Does this mean that centrosomes are not required for cell division in animals at all?

No More Scapegoating

Behavioral software contracts supplement interface information with logical assertions. A rigorous enforcement of contracts provides useful feedback to developers if it signals contract violations as soon as they occur and if it assigns blame to violators with precise explanations. Correct blame assignment gets programmers started with the debugging process and can significantly decrease the ti...

Schizophrenia: inorganic no more.