Are There Enough Injective Sets?

Are There Enough Injective Sets?

The axiom of choice ensures precisely that, in ZFC, every set is projective: that is, a projective object in the category of sets. In constructive ZF (CZF) the existence of enough projective sets has been discussed as an additional axiom taken from the interpretation of CZF in Martin-Löf’s intuitionistic type theory. On the other hand, every non–empty set is injective in classical ZF, which arg...

obesity dilemma: are there enough bariatric surgeons?

There Are Enough Azumaya Algebras on Surfaces

Using Maruyama’s theory of elementary transformations, I show that the Brauer group surjects onto the cohomological Brauer group for separated geometrically normal algebraic surfaces. As an application, I infer the existence of nonfree vector bundles on proper normal algebraic surfaces.

Obesity Dilemma: Are There Enough Bariatric Surgeons?

Please cite this paper as: Fereidoun Azizi. Obesity Dilemma: Are There Enough Bariatric Surgeons? Int J Endocrinol Metab. 2012;10(4):580-1. DOI: 10.5812/ ijem.7929 Implication for health policy/practice/research/medical education: Baratric surgery has shown to be the most effective treatment for morbid obesity and obese diabetics. However the number of surgeons for all the operations indicated ...

P30: Are There Anxious Genes?

Anxiety comprises many clinical descriptions and phenotypes. A genetic predisposition to anxiety is undoubted; however, the nature and extent of that contribution is still unclear. Extensive genetic studies of the serotonin (5-hydroxytryptamine, 5-HT) transporter (5-HTT) gene have revealed how variation in gene expression can be correlated with anxiety phenotypes. Complete genome-wide linkage s...