A5002893922- Reading and Literacy Development
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Language Development and Disorders
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Neurobiology of Language and Bilingualism
- Solar and Space Plasma Dynamics
- Meteorological Phenomena and Simulations
- Cognitive and developmental aspects of mathematical skills
- Climate variability and models
- Child and Animal Learning Development
- Plant Water Relations and Carbon Dynamics
- Media Studies and Communication
- Cognitive Abilities and Testing
- Climate Change Policy and Economics
- Geophysics and Gravity Measurements
- Ionosphere and magnetosphere dynamics
- Astro and Planetary Science
- Earthquake Detection and Analysis
- Fluid Dynamics and Turbulent Flows
- Psychometric Methodologies and Testing
- Innovative Teaching Methodologies in Social Sciences
- Climate Change Communication and Perception
- Classical Antiquity Studies
UNSW Sydney
2023-2024
ARC Centre of Excellence for Climate System Science
2023-2024
University of Bristol
2024
Pepperdine University
2023
Dublin Institute For Advanced Studies
2019-2022
Los Alamos National Laboratory
2022
Arizona State University
2016-2020
Google (United States)
2018-2020
University College Dublin
2019
University of Aberdeen
2010
Abstract Global climate models (GCMs) are commonly downscaled to understand future local change. The high computational cost of regional (RCMs) limits how many GCMs can be dynamically downscaled, restricting uncertainty assessment. While statistical downscaling is cheaper, its validity in a changing unclear. We combine these approaches build an emulator leveraging the merits dynamical and downscaling. A machine learning model developed for each coarse grid cell predict fine variables, using...
Abstract. Accurate representation of the turbulent exchange carbon, water, and heat between land surface atmosphere is critical for modelling global energy, carbon cycles, both in future climate projections weather forecasts. We describe a Model Intercomparison Project (MIP) that compares flux predictions around 20 different models provided with in-situ meteorological forcing, evaluated measured fluxes using quality-controlled data from 170 eddy-covariance based tower sites. Several...
Abstract Mandatory disclosure of physical climate risks to businesses is planned or being implemented in many countries. This raises the question, how viable it link increasing risk, expressed as extreme events, an individual business. We demonstrate characteristics frequency, magnitude and duration events impact a hypothetical business supply chain using analogy spider’s web, where event impacting strand web (supply/market line) impacts efficiency (supply chain). that our business, located...
In children with dyslexia, deficits in working memory have not been well‐specified. We assessed second‐grade and without concomitant specific language impairment, typical development. Immediate serial recall of lists phonological (non‐word), lexical (digit), spatial (location) visual (shape) items were included. For the latter three modalities, we used only standard span but also running tasks, which list length was unpredictable to limit mnemonic strategies. Non‐word repetition tests...
Purpose The purpose of this study was to examine differences in performance between monolingual and Spanish–English bilingual second graders (aged 7–9 years old) on executive function tasks assessing inhibition, shifting, updating contribute more evidence the ongoing debate about a potential advantage. Method One hundred sixty-seven English-speaking children 80 were administered 7 touchscreen computer context pirate game. Bayesian statistics used determine if there groups. Additional...
Purpose The purpose of this study is to investigate word learning in children with dyslexia ascertain their strengths and weaknesses during the configuration stage learning. Method Children typical development ( N = 116) 68) participated computer-based games that assessed 4 sets manipulated phonological or visuospatial demands. All were monolingual English-speaking 2nd graders without oral language impairment. measured children's ability link novel names objects, make decisions about...
X-ray emission from wind-driven bow shocks is both difficult to measure and predict, but may give important insights into the energy budget of hot phase ISM by quantifying mixing at interface between warm gas phases. We investigate effect magnetic fields numerical resolution on predicted other observable properties shocks, study convergence assess robustness observables simulations. A suite 2D 3D HD MHD simulations were run analysed generate synthetic maps lightcurves in infrared emission....
X-ray emission from wind-driven bow shocks is both difficult to measure and predict, but may give important insights into the energy budget of hot phase interstellar medium (ISM) by quantifying mixing at interface between warm gas phases. We investigate effect magnetic fields numerical resolution on predicted other observable properties shocks, study convergence assess robustness observables simulations. A suite 2D 3D hydrodynamic magnetohydrodynamic simulations were run analysed generate...
The Bubble Nebula (or NGC 7635) is a parsec-scale seemingly spherical wind-blown bubble around the relatively unevolved O star BD+60$^\circ$2522. small dynamical age of nebula and significant space velocity suggest that might be bow shock. We have run 2D hydrodynamic simulations to model interaction central star's wind with interstellar medium (ISM). models cover range possible ISM number densities $n=50-200 {\rm cm}^{-3}$ stellar velocities $v_{\star}=20-40$ km s$^{-1}$. Synthetic H$\alpha$...
Orthographic facilitation describes the phenomenon in which a spoken word is produced more accurately when its corresponding written present during learning. We examined orthographic effect children with dyslexia because they have poor learning and recall of words. hypothesized that including orthography would facilitate recall.
The Comprehensive Assessment Battery for Children - Working Memory (CABC-WM) is a computer-based battery designed to assess different components of working memory in young school-age children. deficits have been identified children with language-based learning disabilities, including dyslexia1,2 and language impairment3,4, but it not clear whether these exhibit subcomponents memory, such as visuospatial or phonological memory. CABC-WM administered on desktop computer touchscreen interface...
Purpose We compared novel word learning in 2nd-grade children with typical development who were Spanish-English bilinguals to English monolinguals understand bilingual children. Method Children (monolinguals n = 167, 76) engaged 5 computer-based tasks that assessed 6 different contexts. The measured children's ability link names objects/actions, make decisions about the accuracy of those and recognize semantic features produce names. For analysis, we used Bayesian repeated-measures analyses...
Bifactor models are commonly used to assess whether psychological and educational constructs underlie a set of measures. We consider empirical underidentification problems that encountered when fitting particular types bifactor certain data sets. The objective the article was fourfold: (a) allow readers gain better general understanding issues surrounding identification, (b) offer insights into with models, (c) inform methodologists who explore about these (d) propose strategies for...
Purpose We investigated four theoretically based latent variable models of word learning in young school-age children. Method One hundred sixty-seven English-speaking second graders with typical development from three U.S. states participated. They completed five different tasks designed to assess children's creation, storage, retrieval, and production the phonological semantic representations novel words their ability link those representations. The encompassed triggering configuration...
Abstract. Accurate representation of the turbulent exchange carbon, water, and heat between land surface atmosphere is critical for modelling global energy, carbon cycles in both future climate projections weather forecasts. Evaluation models' ability to do this performed a wide range simulation environments, often without explicit consideration degree observational constraint or uncertainty typically quantification benchmark performance expectations. We describe Model Intercomparison...
The nearby, massive, runaway star Zeta Ophiuchi has a large bow shock detected in optical and infrared, and, uniquely among O stars, diffuse X-ray emission is from the shocked stellar wind. Here we make first detailed computational investigation of Ophiuchi, to test whether simple model can explain observed nebula, compare with simulated maps. We re-analysed archival {\it Chandra} observations thermal wind region shock, finding total unabsorbed flux (0.3-2 keV band) corresponding luminosity...
Journal Article The 1998 German Bundestag election: the end of an era Get access S Green University Portsmouth, UK Search for other works by this author on: Oxford Academic Google Scholar Parliamentary Affairs, Volume 52, Issue 2, April 1999, Pages 306–320, https://doi.org/10.1093/pa/52.2.306 Published: 01 1999
Parallel analysis (PA) assesses the number of factors in exploratory factor analysis. Traditionally PA compares eigenvalues for a sample correlation matrix with matrices 100 comparison datasets generated such that variables are independent, but this approach uses wrong reference distribution. The proper distribution kth based on k-1 underlying factors. Two methods use revised (R-PA) and data method (CDM). We compare accuracies these using Monte Carlo by manipulating structure, loadings,...
ABSTRACT Expanding nebulae are produced by mass-loss from stars, especially during late stages of evolution. Multidimensional simulation these requires high resolution near the star and permits that decreases with distance star, ideally adaptive time-steps. We report implementation testing static mesh-refinement in radiation-magnetohydrodynamics (R-MHD) code pion, document its performance for 2D 3D calculations. The bow shock a hot, magnetized, slowly rotating as it moves through magnetized...
Shear flows along a plasma interface will quickly grow unstable due to the Kelvin–Helmholtz instability. If there is concurrent temperature gradient across interface, higher modes are stabilized by thermal diffusion. These ablative effects must be considered in, for example, jet features in inertial confinement fusion hot-spots, or plumes young supernovae. We show that magnetization of can greatly affect instability, even if magnetic pressure small. This because electrons localized their...
This study examined accuracy on syllable-final (coda) consonants in newly-learned English-like nonwords to determine whether school-aged bilingual children may be more vulnerable making errors English-only codas than their monolingual, English-speaking peers, even at a stage development when phonological productions of familiar words is high. Bilingual Spanish-English-speaking second- graders (age 7-9) with typical (n=40) were matched individually monolingual peers age, sex, and speech...