Formation of the Atlantic Meridional Overturning Circulation lower limb is critically dependent on Atlantic-Arctic mixing.

Deep-water formation in the eastern Subpolar North Atlantic Ocean (eSPNA) and Nordic Seas is crucial for maintaining the lower limb of the Atlantic Meridional Overturning Circulation (AMOC), of consequence for global climate. However, it is still uncertain which processes determine the deep-water formation and how much Atlantic and Arctic waters respectively contribute to the lower limb. To address this, here we used Lagrangian trajectories to diagnose a global eddy-resolving ocean model that agrees well with recent observations highlighting the eSPNA as a primary source of the AMOC lower limb.

Optimizing results of breast cancer surgery: a 8 yrs' experience.

Management of breast cancer in developing country, in contrast to Western countries, is challenging considering more number of advanced cases and poor understanding of the disease and its management by the population and even many physicians. We tried to look prospectively at our experience with breast cancers, trying to optimize the results given the wide- variety of cases we see.