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  1. Article ; Online: A Pilot Investigation of Visual Pathways in Patients with Mild Traumatic Brain Injury

    Paul Harris / Mark H. Myers

    Neurology International, Vol 15, Iss 32, Pp 534-

    2023  Volume 548

    Abstract: In this study, we examined visual processing within primary visual areas (V1) in normal and visually impaired individuals who exhibit significant visual symptomology due to sports-related mild traumatic brain injury (mTBI). Five spatial frequency stimuli ...

    Abstract In this study, we examined visual processing within primary visual areas (V1) in normal and visually impaired individuals who exhibit significant visual symptomology due to sports-related mild traumatic brain injury (mTBI). Five spatial frequency stimuli were applied to the right, left and both eyes in order to assess the visual processing of patients with sports-related mild traumatic brain injuries who exhibited visual abnormalities, i.e., photophobia, blurriness, etc., and controls. The measurement of the left/right eye and binocular integration was accomplished via the quantification of the spectral power and visual event-related potentials. The principal results have shown that the power spectral density (PSD) measurements display a distinct loss in the alpha band-width range, which corresponded to more instances of medium-sized receptive field loss. Medium-size receptive field loss may correspond to parvocellular (p-cell) processing deprecation. Our major conclusion provides a new measurement, using PSD analysis to assess mTBI conditions from primary V1 areas. The statistical analysis demonstrated significant differences between the mTBI and control cohort in the Visual Evoked Potentials (VEP) amplitude responses and PSD measurements. Additionally, the PSD measurements were able to assess the improvement in the mTBI primary visual areas over time through rehabilitation.
    Keywords keyword power spectral density analysis ; visual evoked potentials ; mild traumatic brain injury ; magnocellular (MC) pathway ; parvocellular (PC) pathway ; Medicine ; R ; Internal medicine ; RC31-1245 ; Neurosciences. Biological psychiatry. Neuropsychiatry ; RC321-571
    Subject code 150
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Scops Owl nest on the ground under a rock

    Paul Harris / Stephen Harris

    Rivista Italiana di Ornitologia - Research in Ornithology, Vol 92, Iss

    2022  Volume 1

    Abstract: Unusual Scops Owl nest-site on Giglio island (Tuscan Archipelago National Park, Italy). ...

    Abstract Unusual Scops Owl nest-site on Giglio island (Tuscan Archipelago National Park, Italy).
    Keywords Zoology ; QL1-991
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher PAGEPress Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: The Importance of Scale and the MAUP for Robust Ecosystem Service Evaluations and Landscape Decisions

    Alexis Comber / Paul Harris

    Land, Vol 11, Iss 399, p

    2022  Volume 399

    Abstract: Spatial data are used in many scientific domains including analyses of Ecosystem Services (ES) and Natural Capital (NC), with results used to inform planning and policy. However, the data spatial scale (or support) has a fundamental impact on analysis ... ...

    Abstract Spatial data are used in many scientific domains including analyses of Ecosystem Services (ES) and Natural Capital (NC), with results used to inform planning and policy. However, the data spatial scale (or support) has a fundamental impact on analysis outputs and, thus, process understanding and inference. The Modifiable Areal Unit Problem (MAUP) describes the effects of scale on analyses of spatial data and outputs, but it has been ignored in much environmental research, including evaluations of land use with respect to ES and NC. This paper illustrates the MAUP through an ES optimisation problem. The results show that MAUP effects are unpredictable and nonlinear, with discontinuities specific to the spatial properties of the case study. Four key recommendations are as follows: (1) The MAUP should always be tested for in ES evaluations. This is commonly performed in socio-economic analyses. (2) Spatial aggregation scales should be matched to process granularity by identifying the aggregation scale at which processes are considered to be stable (stationary) with respect to variances, covariances, and other moments. (3) Aggregation scales should be evaluated along with the scale of decision making (e.g., agricultural field, farm holding, and catchment). (4) Researchers in ES and related disciplines should up-skill themselves in spatial analysis and core paradigms related to scale to overcome the scale blindness commonly found in much research.
    Keywords spatial support ; land use ; genetic algorithm ; Agriculture ; S
    Subject code 910
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: A fast and accurate model for the creation of explosion fragments with improved fragment shape and dimensions

    David Felix / Ian Colwill / Paul Harris

    Defence Technology, Vol 18, Iss 2, Pp 159-

    2022  Volume 169

    Abstract: Explosion models based on Finite Element Analysis (FEA) can be used to simulate how a warhead fragments. However their execution times are extensive. Active protection systems need to make very fast predictions, before a fast attacking weapon hits the ... ...

    Abstract Explosion models based on Finite Element Analysis (FEA) can be used to simulate how a warhead fragments. However their execution times are extensive. Active protection systems need to make very fast predictions, before a fast attacking weapon hits the target. Fast execution times are also needed in real time simulations where the impact of many different computer models is being assessed. Hence, FEA explosion models are not appropriate for these real-time systems. The research presented in this paper delivers a fast simulation model based on Mott’s equation that calculates the number and weight of fragments created by an explosion. In addition, the size and shape of fragments, unavailable in Mott’s equation, are calculated using photographic evidence and a distribution of a fragment’s length to its width. The model also identifies the origin of fragments on the warhead’s casing. The results are verified against experimental data and a fast execution time is achieved using uncomplicated simulation steps. The developed model then can be made available for real-time simulation and fast computation.
    Keywords Distribution of fragments ; Fragment shape ; Real-time simulation ; Cylindrical explosion ; Military Science ; U
    Subject code 006
    Language English
    Publishing date 2022-02-01T00:00:00Z
    Publisher KeAi Communications Co., Ltd.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Book: Food in time and place

    Freedman, Paul H.

    the American Historical Association companion to food history

    2014  

    Author's details ed. by Paul Freedman
    Keywords Food/History ; Food habits/History
    Subject code 641.309
    Language English
    Size XXI, 395 S. : graph. Darst., 23 cm
    Publisher Univ. of California Press
    Publishing place Oakland, Calif
    Publishing country United States
    Document type Book
    Note Formerly CIP. ; Includes bibliographical references and index
    HBZ-ID HT018516678
    ISBN 978-0-520-27745-8 ; 978-0-520-28358-9 ; 9780520959347 ; 0-520-27745-7 ; 0-520-28358-9 ; 0520959345
    Database Catalogue ZB MED Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Shelf markLoan statusLocation
    158/43 available for loan (reading room) Freihandmagazin (U1)

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  6. Article ; Online: A Sensitivity Analysis of the SPACSYS Model

    Yan Shan / Mingbin Huang / Paul Harris / Lianhai Wu

    Agriculture, Vol 11, Iss 624, p

    2021  Volume 624

    Abstract: A sensitivity analysis is critical for determining the relative importance of model parameters to their influence on the simulated outputs from a process-based model. In this study, a sensitivity analysis for the SPACSYS model, first published in ... ...

    Abstract A sensitivity analysis is critical for determining the relative importance of model parameters to their influence on the simulated outputs from a process-based model. In this study, a sensitivity analysis for the SPACSYS model, first published in Ecological Modelling (Wu, et al., 2007), was conducted with respect to changes in 61 input parameters and their influence on 27 output variables. Parameter sensitivity was conducted in a ‘one at a time’ manner and objectively assessed through a single statistical diagnostic (normalized root mean square deviation) which ranked parameters according to their influence of each output variable in turn. A winter wheat field experiment provided the case study data. Two sets of weather elements to represent different climatic conditions and four different soil types were specified, where results indicated little influence on these specifications for the identification of the most sensitive parameters. Soil conditions and management were found to affect the ranking of parameter sensitivities more strongly than weather conditions for the selected outputs. Parameters related to drainage were strongly influential for simulations of soil water dynamics, yield and biomass of wheat, runoff, and leaching from soil during individual and consecutive growing years. Wheat yield and biomass simulations were sensitive to the ‘ammonium immobilised fraction’ parameter that related to soil mineralization and immobilisation. Simulations of CO 2 release from the soil and soil nutrient pool changes were most sensitive to external nutrient inputs and the process of denitrification, mineralization, and decomposition. This study provides important evidence of which SPACSYS parameters require the most care in their specification. Moving forward, this evidence can help direct efficient sampling and lab analyses for increased accuracy of such parameters. Results provide a useful reference for model users on which parameters are most influential for different simulation goals, which in turn provides ...
    Keywords sensitivity analysis ; winter wheat ; drainage ; yield ; soil water dynamics ; soil loss ; Agriculture (General) ; S1-972
    Subject code 550
    Language English
    Publishing date 2021-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Leucaena production in the Fitzroy River catchment, central Queensland, Australia

    Paul Harris / Clare Harris

    Tropical Grasslands-Forrajes Tropicales, Vol 7, Iss 4, Pp 339-

    2019  Volume 341

    Abstract: Poster presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia. ...

    Abstract Poster presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.
    Keywords Agriculture ; S
    Language English
    Publishing date 2019-09-01T00:00:00Z
    Publisher Centro Internacional de Agricultura Tropical
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Inclusion

    Dr Paul Harris

    Journal of Social Inclusion, Vol 7, Iss 1, Pp 1-

    “what does it mean anymore, anyway?”

    2016  Volume 3

    Keywords Social Sciences ; H ; Social history and conditions. Social problems. Social reform ; HN1-995
    Language English
    Publishing date 2016-07-01T00:00:00Z
    Publisher Griffith University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Influence of Geographical Effects in Hedonic Pricing Models for Grass-Fed Cattle in Uruguay

    Paul Harris / Bruno Lanfranco / Binbin Lu / Alexis Comber

    Agriculture, Vol 10, Iss 299, p

    2020  Volume 299

    Abstract: A series of non-spatial and spatial hedonic models of feeding and replacement cattle prices at video auctions in Uruguay (2002 to 2009) were specified with predictors measuring marketing conditions (e.g., steer price), cattle characteristics (e.g., breed) ...

    Abstract A series of non-spatial and spatial hedonic models of feeding and replacement cattle prices at video auctions in Uruguay (2002 to 2009) were specified with predictors measuring marketing conditions (e.g., steer price), cattle characteristics (e.g., breed) and agro-ecological factors (e.g., soil productivity, water characteristics, pasture condition, season). Results indicated that cattle prices produced under extensive production systems were influenced by all of predictor categories, confirming that found previously. Although many of the agro-ecological predictors were inherently spatial in nature, the incorporation of spatial effects into the estimation of the hedonic model itself, through either a spatially-autocorrelated error term or allowing the regression coefficients to vary spatially and at different scales, was able to provide greater insight into the cattle price process. Through the latter extension, using a multiscale geographically weighted regression, which was the most informative and most accurate model, relationships between cattle price and predictors operated at a mixture of global, regional, local and highly local spatial scales. This result is considered a key advance, where uncovering, interpreting, and utilizing such rich spatial information can help improve the geographical provenance of Uruguayan beef and is critically important for maintaining Uruguay’s status as a key exporter of beef with respect to the health and safety benefits of natural, open-sky, grass-fed production systems.
    Keywords beef cattle prices ; spatial regression ; multiscale ; provenance ; MGWR ; Agriculture (General) ; S1-972
    Subject code 910
    Language English
    Publishing date 2020-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Immunity and Helicobacter pylori

    Paul Harris

    Medwave, Vol 11, Iss 03, p e

    2011  Volume 4950

    Abstract: The bacteria called Helicobacter pylori arrived to the American continent 12,000 years ago (1), reaching South America roughly 5,400-4,600 years AC according to research by Pelayo Correa, a Colombian pathologist who found Helicobacter in stool next to ... ...

    Abstract The bacteria called Helicobacter pylori arrived to the American continent 12,000 years ago (1), reaching South America roughly 5,400-4,600 years AC according to research by Pelayo Correa, a Colombian pathologist who found Helicobacter in stool next to Chinchorro mummies in the North of Arica close to the Pacific Ocean. In 2005, Barry Marshall was awarded the Nobel Prize for his studies on Helicobacter pylori together with Robin Warren.
    Keywords Medicine ; R ; Medicine (General) ; R5-920
    Language English
    Publishing date 2011-03-01T00:00:00Z
    Publisher Medwave Estudios Limitada
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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