Buildings of types Cn and Dn are defined by rank n polar spaces. The associated building Grassmannians are polar and half-spin Grassmannians. Apartments in dual polar spaces and half-spin Grassmannians were characterized in [4]. We characterize apartments in all polar Grassmannians consisting of non-maximal singular subspaces. This characterization is a partial case of more general results conc...

T99 Differential expression of mitochondrial and extra-mitochondrial proteins in heart of low and high feed efficient broilers within a single male line. N. Tinsely*1, M. Iqbal1, N. R. Pumford1, K. Lassiter1, C. Ojano-Dirain1, J. P. Higgins1, W. Bottje1, T. Wing2, and M. Cooper2, 1Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, 2Cob...

The determinants of the structure, functioning and resilience of pelagic ecosystems across most of the polar regions are not well known. Improved understanding is essential for assessing the value of biodiversity and predicting the effects of change (including in biodiversity) on these ecosystems and the services they maintain. Here we focus on the trophic interactions that underpin ecosystem s...