A Personal Note on Vascular Anomalies

Note on discrete gauge anomalies.

We consider the probem of gauging discrete symmetries. All valid constraints on such symmetries can be understood in the low energy theory in terms of instantons. We note that string perturbation theory often exhibits global discrete symmetries, which are broken non-perturbatively.

Vascular anomalies

Management of vascular anomalies is an emerging multidisciplinary, super-specialisation field involving several surgical, medical and radiological specialties. Over the years, development in this field has been limited because of complex nomenclature and lack of consensus on the best practice for treatment of some of the more complex vascular anomalies. It was only in 1996 that the Internationa...

A note on consistent anomalies in noncommutative YM theories

Via descent equations we derive formulas for consistent gauge anomalies in noncommutative Yang–Mills theories. The growing interest in noncommutative YM theories is calling our attention on old problems. We would like to know if or to what extent old problems, solutions or algorithms in commutative YM theories fit in the new noncommutative framework. One of these is the question of chiral anoma...

Portosystemic vascular anomalies.

Portovascular anomalies are most commonly seen as congenital communications in dogs and cats. Fixation, whether surgical or interventional, should be considered in all cases for which it is possible to improve perfusion to the liver, and ultimately liver function. Medical management before fixation is always recommended. If surgery is not recommended or not possible, long-term medical managemen...

Classification of vascular anomalies.