Assessing the contribution of nonmarket factors to the market value generated by cow-calf operations in rangelands of the western USA: A true cost accounting approach.

Food system transformation requires a better understanding of the negative and positive externalities involved in food production and consumption. Although negative externalities have received substantial attention, positive externalities have been largely overlooked. True Cost Accounting (TCA) is an economic assessment aimed at accounting for externalities in food systems.

Are the novel anticoagulants better than warfarin for patients with atrial fibrillation?

Atrial fibrillation (AF) is associated with significant morbidity and mortality related to stroke due to thromboembolism. Several novel oral anticoagulants (NOACs) have been developed that dose-dependently inhibit thrombin or activated factor X (factor Xa). These new agents offer potential advantages over vitamin K antagonists, however, several limitations exist.