A5081172758- Ionosphere and magnetosphere dynamics
- GNSS positioning and interference
- Solar and Space Plasma Dynamics
- Autism Spectrum Disorder Research
- Earthquake Detection and Analysis
- Geomagnetism and Paleomagnetism Studies
- Philosophy and Theoretical Science
- Radio Astronomy Observations and Technology
- Probabilistic and Robust Engineering Design
- Attention Deficit Hyperactivity Disorder
- Quantum chaos and dynamical systems
- Scientific Research and Discoveries
- Family and Disability Support Research
- Electromagnetic Scattering and Analysis
- Epistemology, Ethics, and Metaphysics
- Solar Radiation and Photovoltaics
- Dark Matter and Cosmic Phenomena
- Mathematical functions and polynomials
- Classical Antiquity Studies
- Terrorism, Counterterrorism, and Political Violence
- Child and Animal Learning Development
- Geophysics and Gravity Measurements
- Seventeenth-Century Political and Philosophical Thought
- Philosophical Ethics and Theory
- Child Development and Digital Technology
Birkbeck, University of London
2011-2022
Augusta University Health
2019
University of Cambridge
2019
Durham University
1981-2018
Dalhousie University
2016
The University of Queensland
1977-2015
National Institute of Standards and Technology
2005
Oxford Brookes University
2001
Federal Employment Agency
1991
Australian Institute of Health and Welfare
1991
Opportunities to use the Global Positioning System (GPS) for ionospheric total electron content (TEC) research are reviewed. The era of TEC measurements using very high frequency geosynchronous beacons is essentially over, and new GPS TECs need be treated in special ways if they augment existing database content. Data taken at Boulder, Colorado, show that with appropriate smoothing, can used extend database. time delay data from International Geodynamics Service over central Europe map...
In addition to core symptoms, i.e., social interaction and communication difficulties restricted repetitive behaviors, autism is also characterized by aspects of superior perception [1Mottron L. Dawson M. Soulières I. Hubert B. Burack J. Enhanced perceptual functioning in autism: an update, eight principles autistic perception.J. Autism Dev. Disord. 2006; 36: 27-43Crossref PubMed Scopus (1176) Google Scholar]. One well-replicated finding that performance visual search tasks, which...
It has been suggested that poor habituation to stimuli might explain atypical sensory behaviours in autism. We investigated repeated sounds using an oddball paradigm 9-month-old infants with older sibling autism and hence at high risk for developing Auditory-evoked responses control (at low of autism) decreased over time, demonstrating habituation, their deviant were larger than standard sounds, indicating discrimination. In contrast, neural showed less a reduced sensitivity changes...
Abstract Little is known about how spontaneous attentional deployment differs on a millisecond-level scale in the early development of autism spectrum disorders (ASD). We measured fine-grained eye movement patterns 6-to 9-month-old infants at high or low familial risk (HR/LR) ASD while they viewed static images. observed shorter fixation durations (i.e. time interval between saccades) HR than LR infants. Preliminary analyses indicate that these results were replicated second cohort Fixation...
Abstract We conducted a replication study of our prior report that increased alpha EEG connectivity at 14-months associates with later autism spectrum disorder (ASD) diagnosis, and dimensional variation in restricted interests/repetitive behaviours. 143 infants high low familial risk for ASD watched dynamic videos spinning toys women singing nursery rhymes while high-density was recorded. Alpha functional (7–8 Hz) calculated using the debiased weighted phase lag index. The final sample clean...
Investigation into the earliest signs of autism in infants has become a significant sub-field research. This work invokes specific ethical concerns such as use ‘at-risk’ language, communicating study findings to parents and future perspective enrolled when they reach adulthood. aimed ground this research field an understanding perspectives members community. Following focus groups identify topics, online survey was distributed autistic adults, children with practitioners health education...
The language difficulties often seen in individuals with autism might stem from an inability to integrate audiovisual information, a skill important for development. We investigated whether 9-month-old siblings of older children autism, who are at increased risk developing able speech cues. used eye-tracker record where infants looked when shown screen displaying two faces the same model, one face is articulating/ba/and other/ga/, congruent syllable sound being presented simultaneously,...
Nocturnal winter increases in total electron content are observed at Bozeman, Boulder, and Dallas with the ATS 6 radio beacon. Results of this investigation suggest that take place mainly ionosphere. Changes plasmaspheric contents much smaller. The downward motion F 2 layer east‐to‐west movement nocturnal maximum (NM) presence an electric field. A westward field will move plasma from higher L shells to lower smaller volumes thus increase pressure, result being enhanced flow plasmasphere flux...
Satellite-ground radio systems are now so sensitive that ionospheric changes can disrupt their performance. This paper discusses some satellite-to-ground propagation problems in the UHF and L bands caused by Earth's ionosphere. Such include signal time delay, dispersion, Faraday rotation, scintillation.
Journal Article ‘Silent and Censured Travellers’? Patients' Narratives Voices: Perspectives on the History of mental Illness since 1948 Get access KERRY DAVIES *School Humanities, Oxford Brookes UniversityGipsy Lane Campus, Headington, Oxford, OX3 OBP E-mail: kedavies@brookes.ac.uk Search for other works by this author on: Academic PubMed Google Scholar Social Medicine, Volume 14, Issue 2, August 2001, Pages 267–292, https://doi.org/10.1093/shm/14.2.267 Published: 01 2001
Expanded marine shipping and industrial activity has increased the risk of harmful effects on mammals. Quantitative estimates mammal time space distributions are essential for developing mitigation strategies designed to reduce risks. Seasonal key mammals can be estimated by deploying passive acoustic monitoring (PAM) hydrophone systems using data monitor, detect identify species presence, often in near real-time. Most contemporary PAM deployments ocean stationary archive post-recovery...
The notion of the principal value an integral is generalized to treat higher order singularities. can be considered "convergent part" a divergent integral, interpretation that almost trivial for simple poles, but more meaningful poles. Application this concept leads algorithm may applied evaluation class integrals arising in mathematical physics. Many these frequently occur analytic and numerical folding functions from product single-particle Green's functions.
Theta oscillations (spectral power and connectivity) are sensitive to the social content of an experience in typically developing infants, providing a possible marker early brain development. Autism is neurodevelopmental condition affecting behaviour, but links underlying function remain unclear. We explored whether modulations theta spectral connectivity by naturalistic infancy related family history for autism. Fourteen-month-old infants with (family history; FH; N = 75) without (no NFH;...
Parents participating in a prospective longitudinal study of infants with older siblings autism completed an screening questionnaire and were asked about any concerns relating to their child's development, children administered interactive assessment conducted by researcher at 14 months. Scores on the parent highest for later diagnosed autism. Parental scores from examiner-led distinguished developmental difficulties (both other atypicalities) those who developing typically. Children whom...
The aim of this study was to explore the associations between temperamental reactivity and regulation emergence anxiety traits in a longitudinal sample infants enriched for later ASD. Parents 143 who were at high- low-risk ASD rated their child's temperament when they 9, 15 24 months old; 36 old. findings suggest that behavioural inhibition may be an early predictor children with without lower levels effortful control develop contribute higher expression within population.