Physical Sciences and Mathematics Commons^™

Mgrre_Thinsections_09-A_91, Mgrre

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Mgrre_Thinsections_09-A_93, Mgrre

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Mgrre_Thinsections_09-A_94, Mgrre

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Mgrre_Thinsections_09-A_95, Mgrre

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Mgrre_Thinsections_09-A_96, Mgrre

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Mgrre_Thinsections_09-A_97, Mgrre

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Mgrre_Thinsections_09-A_98, Mgrre

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Mgrre_Thinsections_09-A_99, Mgrre

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Mgrre_Thinsections_09-A_100, Mgrre

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Mgrre_Thinsections_09-A_101, Mgrre

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Mgrre_Thinsections_09-A_102, Mgrre

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Mgrre_Thinsections_09-A_103, Mgrre

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Beyond Functional Diversity: The Importance Of Trophic Position To Understanding Functional Processes In Community Evolution, Roxanne M. W. Banker, Ashley A. Dineen, Melanie G. Sorman, Carrie L. Tyler, Peter D. Roopnarine

Geoscience Faculty Research

Ecosystem structure—that is the species present, the functions they represent, and how those functions interact—is an important determinant of community stability. This in turn a􀀀ects how ecosystems respond to natural and anthropogenic crises, and whether species or the ecological functions that they represent are able to persist. Here we use fossil data from museum collections, literature, and the Paleobiology Database to reconstruct trophic networks of Tethyan paleocommunities fromthe Anisian and Carnian (Triassic), Bathonian (Jurassic), and Aptian (Cretaceous) stages, and compare these to a previously reconstructed trophic network from a modern Jamaican reef community. We generated model food webs consistent with …

Mgrre_Thinsections_02-A_28, Mgrre

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Mgrre_Thinsections_02-A_61, Mgrre

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Mgrre_Thinsections_02-A_75, Mgrre

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Mgrre_Thinsections_02-A_80, Mgrre

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Adaptive Multi-Scale Place Cell Representations And Replay For Spatial Navigation And Learning In Autonomous Robots, Pablo Scleidorovich

USF Tampa Graduate Theses and Dissertations

Place cells are one of the most widely studied neurons thought to play a vital role in spatial cognition. Extensive studies show that their activity in the rodent hippocampus is highly correlated with the animal’s spatial location, forming “place fields” of smaller sizes near the dorsal pole and larger sizes near the ventral pole. Despite advances, it is yet unclear how this multi-scale representation enables navigation in complex environments.

In this dissertation, we analyze the place cell representation from a computational point of view, evaluating how multi-scale place fields impact navigation in large and cluttered environments. The objectives are to …

Probing The Extent Of Vertical Mixing In Brown Dwarf Atmospheres With Disequilibrium Chemistry, Sagnick Mukherjee, Jonathan J. Fortney, Natasha E. Batalha, Theodora Karalidi, Mark S. Marley, Channon Visscher, Brittany E. Miles, Andrew J. I. Skemer

Faculty Work Comprehensive List

Evidence of disequilibrium chemistry due to vertical mixing in the atmospheres of many T- and Y-dwarfs has been inferred due to enhanced mixing ratios of CO and reduced NH3. Atmospheric models of planets and brown dwarfs typically parameterize this vertical mixing phenomenon with the vertical eddy diffusion coefficient, Kzz. While Kzz can perhaps be approximated in the convective regions in the atmosphere with mixing length theory, in radiative regions, the strength of vertical mixing is uncertain by many orders of magnitude. With a new grid of selfconsistent 1D model atmospheres from Teff of 400–1000 K, computed with a new radiative-convective …

Mgrre_Thinsections_09-A_66, Mgrre

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Mgrre_Thinsections_09-A_67, Mgrre

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Mgrre_Thinsections_09-A_74, Mgrre

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Mgrre_Thinsections_02-A_12, Mgrre

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Mgrre_Thinsections_02-A_24, Mgrre

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Mgrre_Thinsections_02-A_30, Mgrre

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Mgrre_Thinsections_02-A_46, Mgrre

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Mgrre_Thinsections_02-A_81, Mgrre

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Mgrre_Thinsections_02-A_94, Mgrre

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Mgrre_Thinsections_03_A_055, Mgrre

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Mgrre_Thinsections_03_A_056, Mgrre

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