Abstract: An abrasive belt (100) for surface polishing machines of the type having a flexible ring provided with a substantially inextensible internal layer (18) onto which an external abrasive layer (11) is fixed, wherein the external abrasive layer (11) is made up of a plurality of sectors (13) adjacent and at mutual contact, separated by transverse cuttings with respect to the longitudinal direction of the belt (100), the sectors (13) having a width (A) measured in the longitudinal direction of the belt (100) smaller than their height (H) measured in the transverse direction with respect to the surface of the belt (100) and being deformable under the polishing pressure.

Abstract: The present invention provides boronic acid compounds, boronic esters, and compositions thereof that can modulate apoptosis such as by inhibition of proteasome activity. The compounds and compositions can be used in methods of inducing apoptosis and treating diseases such as cancer and other disorders associated directly or indirectly with proteasome activity.

Abstract: Novel derivatives of compound (E)-1,3-dihydro-5,6-dimethoxy-3-[(4-hydroxyphenyl)methylene]-2H-indol-2-one and the use thereof for the preparation of medicaments for the treatment of tumors in which the tyrosine kinase activity proteins Met, PDGF-R, FGF-R1, FGF-R3, Kit and the oncoproteins of the Ret family are involved.

Abstract: The present invention provides boronic acid compounds, boronic esters, and compositions thereof that can modulate apoptosis such as by inhibition of proteasome activity. The compounds and compositions can be used in methods of inducing apoptosis and treating diseases such as cancer and other disorders associated directly of indirectly with proteasome activity.