Open-book exams

A historic “open book fracture”

"Open book fracture" is rare. It is one of the most dangerous pelvic fractures. It is usually associated with abdominal, vascular and nervous injuries requiring a multidisciplinary team for its management. Its treatment is mainly surgical. Only some cases are published in recent literature. The mechanism is usually complex and the consequences usually dramatic. We report in this case a very rar...

Torsion and Open Book Decompositions

We show that if (B, π) is an open book decomposition of a contact 3–manifold (Y, ξ), then the complement of the binding B has no Giroux torsion. We also prove the sutured Heegaard-Floer c-bar invariant of the binding of an open book is non-zero.

Closing the Open (Face) Book

Open-book tests to complement assessment-programmes: analysis of open and closed-book tests.

Today's health sciences educational programmes have to deal with a growing and changing amount of knowledge. It is becoming increasingly important for students to be able to use and manage knowledge. We suggest incorporating open-book tests in assessment programmes to meet these changes. This view on the use of open-book tests is discussed and the influence on test quality is examined. To cope ...

Detecting tightness via open book decompositions

As the title indicates, the setting is the world of contact structures on, and open book decompositions of, three-manifolds. Throughout, M will refer to a smooth, closed, orientable three-manifold, and ξ a contact structure on M ; that is to say that ξ = ker(α), where α is a globally defined 1-form satisfying the condition that α ∧ dα is a volume form on M . An open book decomposition of M is a...