However, fundamental studies of relevant model systems are sparse, leaving open-questions regarding the surface chemistry of this class of materials.
Although details are sparse and significant questions about Provenge remain, the result is a major victory for Dendreon, and for researchers working on treatments that aim to fight cancer using patients' own immune systems.
The Coastal Zone Color Scanner (CZCS) data set provided some insights into biological processes in the equatorial Pacific, but the sampling was too sparse to address questions on temporal and spatial variability.
In addition to showing that splenic lymphoid nodules express low levels of PrPC, the present study also showed that the lymphoid nodules possessed a sparse innervation, which questions the contribution of the large accumulation of PrPSc in splenic germinal centres to the process of neuroinvasion.
Research data on the question, though sparse, do not appear to support those fears, however.
The data currently available on this question remain sparse.
More particularly, we address the question of sparse sequences, that is the ratio of the number of 1's to 0's is much smaller than 1.
