1,370 research outputs found
Multiple resolution surface wave tomography: the Mediterranean basin
No full textFrom a large set of fundamental-mode surface wave phase velocity observations, we map the transversely isotropic lateral heterogeneities in the upper-mantle shear velocity structure. We design a multiple resolution inversion procedure, which allows us to parametrize any selected region more finely than the rest of the globe. We choose, as a high-resolution region, the upper mantle underlying the Mediterranean basin. We formulate the inverse problem as in a previous paper by Boschi & Ekstrom, calculating regional JWKB (Jeffreys-Wentzel-Kramers-Brillouin) surface wave sensitivity kernels for each pixel of a 2degrees x 2degrees starting model, including the high-resolution global crustal map Crust 2.0. We find that the available surface wave data can resolve the most important geophysical features of the region of interest, providing a reliable image of intermediate spatial wavelength. RI Ekstrom, Goran/C-9771-201
SLI
No full textStarrett, M. J., Huffman, D. J., & Ekstrom, A. D. (2022). Combining egoformative and alloformative cues in a novel tabletop navigation task. Psychological Research. https://doi.org/10.1007/s00426-022-01739-
J. Peter Ekstrom holding the College's Mace at Commencement 2007
No full textThis image was submitted by the Communications Department. Uploaded by Archives RSA Josephine Hill.Peter Ekstrom at the commencement procession in 2007. He is carrying the mace in honor of his retiring from the Department of Sociology and Anthropology
SLI
No full textStarrett, M. J., Huffman, D. J., & Ekstrom, A. D. (2022). Combining egoformative and alloformative cues in a novel tabletop navigation task. Psychological Research. https://doi.org/10.1007/s00426-022-01739-
Non-invasive 19F NMR analysis of a protein-templated N- acylhydrazone dynamic combinatorial library. OBC 2018
No full textSupplementary data to support the following publication (abstract): Dynamic combinatorial chemistry (DCC) is a powerful tool to identify ligands for biological targets. We used 19F NMR as an in situ, non-invasive technique for measuring the composition of a dynamic combinatorial library (DCL) of N-acylhydrazones (NAHs). An NAH DCL, constructed from a fluoro-aromatic aldehyde and a small set of hydrazides, was targetted at ecFabH, an essential enzyme in bacterial fatty acid biosynthesis.
Our NMR analysis identified a tert-butyl NAH as the best binder which was confirmed by enzymatic assay
Sleep Quality as a Novel Mediator of Reductions in Daytime Breathlessness With Low-dose Morphine in People With Chronic Obstructive Pulmonary Disease
No full textD. J. Eckert, B. Toson, K. A. Loffler, M. P. Ekstrom, D. Currow, T. J. Altre
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An important step toward understanding the role of body-based cues on human spatial memory for large-scale environments
No full textMoving our body through space is fundamental to human navigation; however, technical and physical limitations have hindered our ability to study the role of these body-based cues experimentally. We recently designed an experiment using novel immersive virtual-reality technology, which allowed us to tightly control the availability of body-based cues to determine how these cues influence human spatial memory [Huffman, D. J., & Ekstrom, A. D. A modality-independent network underlies the retrieval of large-scale spatial environments in the human brain. Neuron, 104, 611–622, 2019]. Our analysis of behavior and fMRI data revealed a similar pattern of results across a range of body-based cues conditions, thus suggesting that participants likely relied primarily on vision to form and retrieve abstract, holistic representations of the large-scale environments in our experiment. We ended our paper by discussing a number of caveats and future directions for research on the role of body-based cues in human spatial memory. Here, we reiterate and expand on this discussion, and we use a commentary in this issue by A. Steel, C. E. Robertson, and J. S. Taube (Current promises and limitations of combined virtual reality and functional magnetic resonance imaging research in humans: A commentary on Huffman and Ekstrom (2019). Journal of Cognitive Neuroscience, 2020) as a helpful discussion point regarding some of the questions that we think will be the most interesting in the coming years. We highlight the exciting possibility of taking a more naturalistic approach to study the behavior, cognition, and neuroscience of navigation. Moreover, we share the hope that researchers who study navigation in humans and nonhuman animals will syner-gize to provide more rapid advancements in our understanding of cognition and the brain. © 2020 Massachusetts Institute of Technology.Open access articleThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
A quantitative morphometrical study on human parotid glands treated in vitro with melatonin
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Corrigendum: The Body Odor Disgust Scale (BODS): Development and validation of a novel olfactory disgust assessment [Chem. Senses, (2016) (1-10)] doi: 10.1093/chemse/bjw107
No full textIn "The Body Odor Disgust Scale (BODS): Development and Validation of a Novel Olfactory Disgust Assessment" by Marco Tullio Liuzza et al., the sentence in section "Confirmatory factor analysis", "One hundred sixty-eight participants (49.6%) defined themselves as female." should be "One hundred twenty-eight participants (49.6%) defined themselves as female.". This has been corrected in print and online. The author regrets this error
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