2,108 research outputs found

    Exploring Anatomy Coursework and Perceptions of Occupational Therapy Students: A Survey Study

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    Occupational therapy practitioners utilize their knowledge of human anatomy to understand underlying anatomical dysfunction and how it impacts occupational performance. However, anatomy is not a required standalone course within occupational therapy curricula. This may leave students at a disadvantage throughout occupational therapy programs, fieldwork, and as practitioners. The primary purpose of this study was to explore graduate level occupational therapy students’ previous anatomy undergraduate coursework, student perceived preparedness of anatomical knowledge, and their performance in a mandatory Analysis of Human Movement course within our university’s occupational therapy graduate programs. The secondary purpose was to determine student interest in a standalone online anatomy review course if one were offered at the start of program matriculation. Participants (n=87) completed a 14-item survey regarding demographics, prior anatomy coursework, perceived preparedness, and academic performance in a mandatory Analysis of Human Movement course. Descriptive statistics and a Pearson’s correlation were conducted. Data analysis revealed statistically significant correlations among several variables including perceived preparedness, and whether students felt they would have benefited from and participated in an online anatomy review course. No statistically significant correlations were found between academic performance and any other variable. Data analysis also revealed that regardless of prior anatomy coursework, perceived preparedness, and academic performance almost all participants (n=80; 92%) indicated that they would have benefited from and participated in an online anatomy review course. Though continued research is warranted, occupational therapy programs may consider the implementation of a standalone anatomy course to promote students’ academic and clinical success

    Genomic characterization of Gli-activator targets in sonic hedgehog-mediated neural patterning

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    Sonic hedgehog (Shh) acts as a morphogen to mediate the specification of distinct cell identities in the ventral neural tube through a Gli-mediated (Gli1-3) transcriptional network. Identifying Gli targets in a systematic fashion is central to the understanding of the action of Shh. We examined this issue in differentiating neural progenitors in mouse. An epitope-tagged Gli-activator protein was used to directly isolate cis-regulatory sequences by chromatin immunoprecipitation (ChIP). ChIP products were then used to screen custom genomic tiling arrays of putative Hedgehog (Hh) targets predicted from transcriptional profiling studies, surveying 50-150 kb of non-transcribed sequence for each candidate. In addition to identifying expected Gli-target sites, the data predicted a number of unreported direct targets of Shh action. Transgenic analysis of binding regions in Nkx2.2, Nkx2.1 (Titf1) and Rab34 established these as direct Hh targets. These data also facilitated the generation of an algorithm that improved in silico predictions of Hh target genes. Together, these approaches provide significant new insights into both tissue-specific and general transcriptional targets in a crucial Shh-mediated patterning process

    1,135 ionomes reveal the global pattern of leaf and seed mineral nutrient and trace element diversity in Arabidopsis thaliana

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    We thank the laboratory members who helped with the sowing and harvesting of the materials for this very large high‐throughput experiment. We recognise the late Dr John Danku for performing the ICP‐MS analysis for this research. This work was funded by UKRI BBSRC grants (BB/L000113/1 and BB/N023927/1) to DES and support from the Future Food Beacon of Excellence, University of Nottingham.Peer reviewedPublisher PD

    Ceratoscopelus maderensis : pecular sound-scattering layer identified with this myctophid fish

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    Reprint. Science, vol. 160, no. 3831, 1968, pp. 991-993. Originally issued as Reference No. 68-58, series later renamed WHOI-.A sound- scattering layer, composed of discrete hyperbolic echo-sequences and apparently restricted to the Slope Water region of the western North Atlantic, has been identified from the Deep Submergence Research Vehicle ALVIN with schools of the myctophid fish Ceratoscopelus maderensis. By diving into the layer and using ALVIN's echo-ranging sonar, we approached and visually identified the sound scatterers. The number of echo sequences observed with the surface echo-sounder (1 /23. 76 x 105 cubic meters of water) checked roughly with the number of sonar targets observed from the submarine (1/7. 45 x 105 cubic meters) . The fish schools appeared to be 5 to 10 meters thick, 10 to 100 meters in diameter, and on centers 100 to 200 meters apart. Density within schools was estimated at 10 to 15 fish per cubic meter.Supported in part by contracts Nonr-3484(00) and Nonr-4029(00) and by NSF grant GB-4431

    The 3rd Fermi GBM Gamma-Ray Burst Catalog: The First Six Years

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    Since its launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has triggered and located on average approximately two gamma-ray bursts (GRB) every three days. Here we present the third of a series of catalogs of GRBs detected by GBM, extending the second catalog by two more years, through the middle of July 2014. The resulting list includes 1405 triggers identified as GRBs. The intention of the GBM GRB catalog is to provide information to the community on the most important observables of the GBM detected GRBs. For each GRB the location and main characteristics of the prompt emission, the duration, peak flux and fluence are derived. The latter two quantities are calculated for the 50-300~keV energy band, where the maximum energy release of GRBs in the instrument reference system is observed, and also for a broader energy band from 10-1000 keV, exploiting the full energy range of GBM's low-energy NaI(Tl) detectors. Using statistical methods to assess clustering, we find that the hardness and duration of GRBs are better fitted by a two-component model with short-hard and long-soft bursts, than by a model with three components. Furthermore, information is provided on the settings and modifications of the triggering criteria and exceptional operational conditions during years five and six in the mission. This third catalog is an official product of the Fermi GBM science team, and the data files containing the complete results are available from the High-Energy Astrophysics Science Archive Research Center (HEASARC).Comment: 225 pages, 13 figures and 8 tables. Accepted for publication in Astrophysical Journal Supplement 201

    The Fermi GBM Gamma-Ray Burst Spectral Catalog: Four Years Of Data

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    In this catalog we present the updated set of spectral analyses of GRBs detected by the Fermi Gamma-Ray Burst Monitor (GBM) during its first four years of operation. It contains two types of spectra, time-integrated spectral fits and spectral fits at the brightest time bin, from 943 triggered GRBs. Four different spectral models were fitted to the data, resulting in a compendium of more than 7500 spectra. The analysis was performed similarly, but not identically to Goldstein et al. 2012. All 487 GRBs from the first two years have been re-fitted using the same methodology as that of the 456 GRBs in years three and four. We describe, in detail, our procedure and criteria for the analysis, and present the results in the form of parameter distributions both for the observer-frame and rest-frame quantities. The data files containing the complete results are available from the High-Energy Astrophysics Science Archive Research Center (HEASARC).Comment: Accepted for publication in ApJ

    Detection of a Thermal Spectral Component in the Prompt Emission of GRB 100724B

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    Observations of GRB 100724B with the Fermi Gamma-Ray Burst Monitor (GBM) find that the spectrum is dominated by the typical Band functional form, which is usually taken to represent a non-thermal emission component, but also includes a statistically highly significant thermal spectral contribution. The simultaneous observation of the thermal and non-thermal components allows us to confidently identify the two emission components. The fact that these seem to vary independently favors the idea that the thermal component is of photospheric origin while the dominant non-thermal emission occurs at larger radii. Our results imply either a very high efficiency for the non-thermal process, or a very small size of the region at the base of the flow, both quite challenging for the standard fireball model. These problems are resolved if the jet is initially highly magnetized and has a substantial Poynting flux.Comment: 6 pages, 3 figures, 1 table, Accepted for publication in the Astrophysical Journal Letters November, 23 2010 (Submitted October, 20 2010
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