ORCID Profile
0000-0002-9582-2597
Current Organisation
Edith Cowan University
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Publisher: WMU Department of Occupational Therapy
Date: 07-2014
Publisher: Informa UK Limited
Date: 30-10-2013
Publisher: Springer Science and Business Media LLC
Date: 03-2021
Abstract: A search is presented for the production of the Standard Model Higgs boson in association with a high-energy photon. With a focus on the vector-boson fusion process and the dominant Higgs boson decay into b -quark pairs, the search benefits from a large reduction of multijet background compared to more inclusive searches. Results are reported from the analysis of 132 fb − 1 of pp collision data at $$ \\sqrt{s} $$ s = 13 TeV collected with the ATLAS detector at the LHC. The measured Higgs boson signal yield in this final-state signature is 1 . 3 ± 1 . 0 times the Standard Model prediction. The observed significance of the Higgs boson signal above the background is 1 . 3 standard deviations, compared to an expected significance of 1 . 0 standard deviations.
Publisher: Springer Science and Business Media LLC
Date: 02-2021
DOI: 10.1140/EPJC/S10052-020-08734-W
Abstract: Differential cross-section measurements are presented for the electroweak production of two jets in association with a Z boson. These measurements are sensitive to the vector-boson fusion production mechanism and provide a fundamental test of the gauge structure of the Standard Model. The analysis is performed using proton–proton collision data collected by ATLAS at $$\\sqrt{s}=13\\ \\hbox {TeV}$$ s = 13 TeV and with an integrated luminosity of $$139\\ \\hbox {fb}^{-1}$$ 139 fb - 1 . The differential cross-sections are measured in the $$Z\\rightarrow \\ell ^+\\ell ^-$$ Z → ℓ + ℓ - decay channel ( $$\\ell =e,\\mu $$ ℓ = e , μ ) as a function of four observables: the dijet invariant mass, the rapidity interval spanned by the two jets, the signed azimuthal angle between the two jets, and the transverse momentum of the dilepton pair. The data are corrected for the effects of detector inefficiency and resolution and are sufficiently precise to distinguish between different state-of-the-art theoretical predictions calculated using Powheg+Pythia8 , Herwig7+Vbfnlo and Sherpa 2.2. The differential cross-sections are used to search for anomalous weak-boson self-interactions using a dimension-six effective field theory. The measurement of the signed azimuthal angle between the two jets is found to be particularly sensitive to the interference between the Standard Model and dimension-six scattering litudes and provides a direct test of charge-conjugation and parity invariance in the weak-boson self-interactions.
Publisher: Informa UK Limited
Date: 03-04-2015
Publisher: American Physical Society (APS)
Date: 26-03-2021
Publisher: Informa UK Limited
Date: 05-2014
DOI: 10.3109/11038128.2014.902988
Abstract: This pilot study aimed to establish the appropriateness of the Model of Juggling Occupations in exploring the complex experience of role balance amongst working women with family responsibilities living in Perth, Australia. In meeting this aim, an evaluation was conducted of a case study design, where data were collected through a questionnaire, time diary, and interview. Overall role balance varied over time and across participants. Positive indicators of role balance occurred frequently in the questionnaires and time diaries, despite the interviews revealing a predominance of negative evaluations of role balance. Between-role balance was achieved through compatible role overlap, buffering, and renewal. An exploration of within-role balance factors demonstrated that occupational participation, values, interests, personal causation, and habits were related to role balance. This pilot study concluded that the Model of Juggling Occupations is an appropriate conceptual framework to explore the complex and dynamic experience of role balance amongst working women with family responsibilities. It was also confirmed that the case study design, including the questionnaire, time diary, and interview methods, is suitable for researching role balance from this perspective.
Publisher: Informa UK Limited
Date: 03-11-2015
Publisher: MDPI AG
Date: 14-03-2020
Abstract: Background: The study of attention deficit hyperactivity disorder (ADHD) has traditionally focused on deficit of inhibitory control and cognitive impulsivity. However, the pathophysiology of ADHD has also been associated with the somatosensory cortex. The aim of this study was to explore if there were differences in tactile discrimination and praxis between neurotypical and ADHD children and whether these differences could be explained by cognitive impulsivity. Methods: A cross-sectional study was conducted. The s le comprised 74 children aged 7 to 11 years ided in two groups: 43 with neurotypical development, 31 with ADHD. To assess tactile discrimination, the finger localization and the graphestesia tests were used. Praxis was assessed with the Kaufman Assesment Battery for Children (K-ABC) hand movement subtest, the action program and the Zoo Map subtests of the Behavioral Assessment of Dysexecutive Syndrome, and the complex figure of Rey–Osterrieth test (ROCF). Cognitive impulsivity was assessed using the Magallanes Computerized Impulsivity Scale test (EMIC). Results: Children with ADHD showed greater cognitive impulsivity (p = 0.038) and scored lower in Zoo Map (p = 0.023) and hand-movement subtests (p = 0.002), and in ROCF test (p = 0.004). Differences in praxis skills still remained after controlling by gender and cognitive impulsivity. Conclusion: Praxis deficit might have repercussions not only on the characterization of ADHD but also on its treatment.
Publisher: Springer Science and Business Media LLC
Date: 03-2021
DOI: 10.1140/EPJC/S10052-021-08929-9
Abstract: A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to $$ 139\\,{\\text {fb}}^{-1} $$ 139 fb - 1 of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on the final state with two light leptons (electrons or muons) of different flavour and charge combinations, with at least two jets and large missing transverse momentum. No significant excess over the Standard Model expectation is observed. The results are translated into exclusion limits on heavy-lepton masses, and the observed lower limit on the mass of the type-III seesaw heavy leptons is 790 GeV at 95% confidence level.
Publisher: American Physical Society (APS)
Date: 24-03-2021
Publisher: Informa UK Limited
Date: 23-12-2019
Publisher: Informa UK Limited
Date: 26-06-2013
DOI: 10.3109/17483107.2013.814171
Abstract: To explore the in idual experience of being a scooter user and the ways in which scooters impact the in idual's community and social engagement, daily activities and enhances mobility. A qualitative, constructive framework utilising purposive s ling and a semi structured interview was used with 14 in iduals. Questions were categorised according to the International Classification of Functioning, Disability and Health framework into the three areas of activities, participation and environmental factors. The three main themes identified through the research were knowledge, engagement and environments. Knowledge included a lack of concise information, and adequate trialling and training prior to purchase. Engagement consisted of participation and interaction demonstrating scooter use resulted in increased participation, role maintenance, choice, freedom and social interaction. Environments highlighted discrimination from the wider population and building design and barriers. The research demonstrated a strong positive impact on in idual's engagement from using a scooter, while highlighting a lack of adequate knowledge about scooters, batteries, skill ability and design along with environmental challenges of discriminatory attitudes and physical barriers. The research indicates the need for pre-purchase assessments and trials along with improvements in community attitudes and environments. Development of a pre-purchase assessment including specific core skills for scooter use is of great importance to minimise accidents and death as a consequence of scooter driving. Education and training of prescribers and suppliers of scooters is important to match needs and skills to enable a better fit of scooter to user. Incorporation of adjustability of features within the standard design of scooters, including type of driving controls, seat height, and adjustment of distance to controls, will enable greater fit of scooter to the user s needs.
Publisher: Informa UK Limited
Date: 15-03-2018
DOI: 10.1080/11038128.2018.1449888
Abstract: Women combining paid employment with dual caring responsibilities for children and aging parents, otherwise known as the sandwich generation, experience both benefits and costs related to role participation and quality of life. However, previous literature is inconclusive regarding the impact of this role combination on role balance. In the context of these mixed findings on role balance for working sandwich generation women, this study aimed to explore how within role characteristics and between role interactions are related to role balance for these women. This aim was achieved through the use of a questionnaire administered to 18 Australian working sandwich generation women. Data were analyzed using descriptive statistics and correlation coefficients, with findings suggesting the women studied tended to experience neither role balance or role imbalance. Within-role characteristics, particularly within the mother and family member roles, were related to role balance. In addition, between-role conflict and role interactions involving either the home maintainer or family member roles had the greatest impact on role balance.
Publisher: MDPI AG
Date: 06-01-2021
Abstract: Play is essential in childhood, allowing for a positive trend in development and learning. Health professionals need useful tools to assess it, especially in the case of children with neurodevelopmental disorders. The aim of this study was to validate and cross-culturally adapt the My Child’s Play questionnaire and to find out if this instrument allows us to differentiate the play of children with neurodevelopmental disorders from the play of children with neurotypical development. A total of 594 parents completed the questionnaire. A confirmatory factor analysis was conducted, which showed a similar structure to the English version: (1) executive functions (2) environmental context (3) play characteristics and (4) play preferences and interpersonal interactions. The reliability of the analysis was high, both for the whole questionnaire and for the factors it comprises. The results provide evidence of the potential usefulness of the My Child’s Play questionnaire for determining play needs and difficulties of children moreover, this tool can also be used to plan intervention programs according to the needs of each child and family.
Publisher: Springer Science and Business Media LLC
Date: 19-04-2021
Abstract: A search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse momentum is performed. Signal regions are designed to search for two-, three-, and four-body decays of the directly pair-produced supersymmetric partner of the top quark (stop). Additional signal regions are designed specifically to search for spin-0 mediators that are produced in association with a pair of top quarks and decay into a pair of dark-matter particles. The search is performed using the Large Hadron Collider proton-proton collision dataset at a centre-of-mass energy of $$ \\sqrt{s} $$ s = 13 TeV recorded by the ATLAS detector from 2015 to 2018, corresponding to an integrated luminosity of 139 fb − 1 . No significant excess above the Standard Model background is observed, and limits at 95% confidence level are set in the stop-neutralino mass plane and as a function of the mediator mass or the dark-matter particle mass. Stops are excluded up to 1200 GeV (710 GeV) in the two-body (three-body) decay scenario. In the four-body scenario stops up to 640 GeV are excluded for a stop-neutralino mass difference of 60 GeV. Scalar and pseudoscalar dark-matter mediators are excluded up to 200 GeV when the coupling strengths of the mediator to Standard Model and dark-matter particles are both equal to one and when the mass of the dark-matter particle is 1 GeV.
Publisher: MDPI AG
Date: 08-05-2018
Publisher: Springer Science and Business Media LLC
Date: 04-2021
Abstract: The results of a search for direct pair production of top squarks and for dark matter in events with two opposite-charge leptons (electrons or muons), jets and missing transverse momentum are reported, using 139 fb − 1 of integrated luminosity from proton-proton collisions at $$ \\sqrt{s} $$ s = 13 TeV, collected by the ATLAS detector at the Large Hadron Collider during Run 2 (2015–2018). This search considers the pair production of top squarks and is sensitive across a wide range of mass differences between the top squark and the lightest neutralino. Additionally, spin-0 mediator dark-matter models are considered, in which the mediator is produced in association with a pair of top quarks. The mediator subsequently decays to a pair of dark-matter particles. No significant excess of events is observed above the Standard Model background, and limits are set at 95% confidence level. The results exclude top squark masses up to about 1 TeV, and masses of the lightest neutralino up to about 500 GeV. Limits on dark-matter production are set for scalar (pseudoscalar) mediator masses up to about 250 (300) GeV.
Publisher: American Physical Society (APS)
Date: 19-02-2021
No related grants have been discovered for Janet Richmond.