Alignment of Minisatellite Maps: A Minimum Spanning Tree based Approach

Abouelhoda MI, Giegerich R, Behzadi B, Steyaert JM. Alignment of Minisatellite Maps: A Minimum Spanning Tree based Approach. In: Proceedings of the 6th Asia-Pacific Bioinformatics Conference. Series on Advances in Bioinformatics and Computational Biology, 6. 2008: 261-272

Energy levels of /sup 162/Er through the /sup 165/Ho(p,4n gamma )/sup 162/Er reaction

The energy levels of the nucleus /sup 162/Er have been investigated by standard on-line gamma -ray spectroscopic methods using the /sup 165/Ho(p,4n gamma )/sup 162/Er reaction. Various rotational bands have been excited up to high spins; the ground-state band up to 16/sup +/; the gamma -band up to 11/sup +/ and maybe 12/sup +/; the odd-spin members of the negative-parity octupole band up to 13/sup -/; and a new band, with levels of spins 4, 6, 8, 10 and 12, which could be the even-spin part of the negative-parity octupole band. The results are compared with various theoretical models. The absolute cross sections for the /sup 165/Ho(p,/b x/n)/sup 166-x/Er reactions between /b E //sub p/=30 and 51 MeV have also been measured for /b x/=2 to 6.Anglai

Energy levels in the nucleus /sup 156/Dy through the /sup 159 /Tb(p,4n gamma )/sup 156/Dy reaction

Using the /sup 159/Tb(p,4n gamma )/sup 156/Dy reaction at /b E//sub p/=27 to 51 MeV and standard on-line gamma -ray spectroscopy methods, the energies and decay properties of members of various rotational bands in the nucleus /sup 156/Dy have been investigated, i.e. the ground-state band up to 14/sub g//sup +/, the beta -vibrational band up to 14/sub beta //sup +/, the gamma -vibrational band up to 11 /sub gamma //sup +/, and two other bands, one with odd-spin levels up to 11, the other with even-spin levels up to 10. The results are compared with various calculations in the framework of the collective model, and no satisfactory fit is obtained; possible improvements of the model to remove these discrepancies are suggested.Anglai

Wave exposure shapes reef community composition and recovery trajectories at a remote coral atoll

In a time of unprecedented ecological change, understanding natural biophysical relationships between reef resilience and physical drivers is of increasing importance. This study evaluates how wave forcing structures coral reef benthic community composition and recovery trajectories after the major 2015/2016 bleaching event in the remote Chagos Archipelago, Indian Ocean. Benthic cover and substrate rugosity were quantified from digital imagery at 23 fore reef sites around a small coral atoll (Salomon) in 2020 and compared to data from a similar survey in 2006 and opportunistic surveys in intermediate years. Cluster analysis and principal component analysis show strong separation of community composition between exposed (modelled wave exposure > 1000 J m−3) and sheltered sites (< 1000 J m−3) in 2020. This difference is driven by relatively high cover of Porites sp., other massive corals, encrusting corals, soft corals, rubble and dead table corals at sheltered sites versus high cover of pavement and sponges at exposed sites. Total coral cover and rugosity were also higher at sheltered sites. Adding data from previous years shows benthic community shifts from distinct exposure-driven assemblages and high live coral cover in 2006 towards bare pavement, dead Acropora tables and rubble after the 2015/2016 bleaching event. The subsequent recovery trajectories at sheltered and exposed sites are surprisingly parallel and lead communities towards their respective pre-bleaching communities. These results demonstrate that in the absence of human stressors, community patterns on fore reefs are strongly controlled by wave exposure, even during and after widespread coral loss from bleaching events