Search Results - "MacDonald, Iain"

The Influence of River Plume Discharge and Winds on Sediment Transport into a Coastal Mangrove Environment by Vundavilli, Hemanth, Mullarney, Julia C., MacDonald, Iain T.

“…We investigate how the physical forcing factors of river discharge and winds affect sediment delivery to, and retention within, mangrove-lined coastal regions…”
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A Time-Series Model for Underdispersed or Overdispersed Counts by MacDonald, Iain L., Bhamani, Feroz

“…It is common for time series of unbounded counts (that is, nonnegative integers) to display overdispersion relative to the Poisson. Such an overdispersed…”
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Is EM really necessary here? Examples where it seems simpler not to use EM by MacDonald, Iain L.

“…If one is to judge by counts of citations of the fundamental paper (Dempster in JRSSB 39: 1–38, 1977), EM algorithms are a runaway success. But it is…”
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Numerical Maximisation of Likelihood: A Neglected Alternative to EM? by MacDonald, Iain L.

“…There is by now a long tradition of using the EM algorithm to find maximum-likelihood estimates (MLEs) when the data are incomplete in any of a wide range of…”
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Letter to the editor: Fitting truncated normal distributions by MacDonald, Iain L

“…I comment here on a recent paper in this journal, on the fitting of truncated normal distributions by the EM algorithm. I show that the fitting of such…”
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Does Newton–Raphson really fail? by MacDonald, Iain L

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Continuous-time Markov-chain models for reaction systems: fast and slow processes by MacDonald, Iain L., Pienaar, Etienne A. D.

“…It is sometimes of interest to identify the fast and slow processes in a reaction system. We present here an approach to this problem which is based on a…”
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Lagrangian Observations and Modeling of Turbulence Along a Tidally Influenced River by Déjeans, Bérengère S., Mullarney, Julia C., MacDonald, Iain T.

“…We examine and model the patterns of velocities and turbulence from flow‐following measurements along a tidally influenced river, collected from the heavily…”
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Models for count data by MacDonald, Iain L.

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Mangrove forest drag and bed stabilisation effects on intertidal flat morphology by Gijsman, Rik, Horstman, Erik M., Swales, Andrew, MacDonald, Iain T., Bouma, Tjeerd J., Wal, Daphne, Wijnberg, Kathelijne M.

“…Mangrove trees influence their physical environment by exerting drag on tidal flows and waves while also stabilising the sediment bed of intertidal flats…”
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Genetic monitoring for effective plant conservation: An example using the threatened Saxifraga hirculus L. in Scotland by Finger, Aline, Macdonald, Iain, Hollingsworth, Peter M.

“…Societal Impact Statement Many mountain plants persist in small, isolated patches on the verge of extinction. Observational methods of monitoring these…”
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Estuaries as coastal reactors: importance of shallow seafloor habitats for primary productivity and nutrient transformation, and impacts of sea level rise by Douglas, Emily J., Bulmer, Richard H., MacDonald, Iain T., Lohrer, Andrew M.

“…Estuaries are hotspots of primary productivity and nutrient transformation that contribute to food webs and ecosystem functioning locally and in adjacent…”
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Enclosing the global commons: the convention on biological diversity and green grabbing by Corson, Catherine, MacDonald, Kenneth Iain

“…‘Green grabs,’ or the expropriation of land or resources for environmental purposes, constitute an important component of the current global land grab…”
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Do nursery habitats provide shelter from flow for juvenile fish? by Parsons, Darren M, MacDonald, Iain, Buckthought, Dane, Middleton, Crispin

“…Juvenile fish nurseries are an essential life stage requirement for the maintenance of many fish populations. With many inshore habitats globally in decline,…”
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A flocculi model for the acoustic scattering from flocs by Vincent, Christopher E., MacDonald, Iain T.

“…The objective of this paper is to suggest a methodology for the practical inversion of acoustic backscatter to obtain suspended mass concentration of marine…”
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Do 'green' buildings have better indoor environments? New evidence by Newsham, Guy R., Birt, Benjamin J., Arsenault, Chantal, Thompson, Alexandra J. L., Veitch, Jennifer A., Mancini, Sandra, Galasiu, Anca D., Gover, Bradford N., Macdonald, Iain A., Burns, Gregory J.

“…A post-occupancy evaluation (POE) of 12 green and 12 conventional office buildings across Canada and the northern United States was conducted. Occupants (N =…”
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Modeling Time Series of Animal Behavior by Means of a Latent-State Model with Feedback by Zucchini, Walter, Raubenheimer, David, MacDonald, Iain L.

“…We describe a family of models developed for time series of animal feeding behavior. The models incorporate both an unobserved state, which can be interpreted…”
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Silent cold-sensing neurons contribute to cold allodynia in neuropathic pain by MacDonald, Donald Iain, Luiz, Ana P, Iseppon, Federico, Millet, Queensta, Emery, Edward C, Wood, John N

“…Patients with neuropathic pain often experience innocuous cooling as excruciating pain. The cell and molecular basis of this cold allodynia is little…”
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Some nonstandard stochastic volatility models and their estimation using structured hidden Markov models by Langrock, Roland, MacDonald, Iain L., Zucchini, Walter

“…We introduce a number of nonstandard stochastic volatility (SV) models and examine their performance when applied to the series of daily returns on several…”
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Even More Direct Calculation of the Variance of a Maximum Penalized-Likelihood Estimator by MacDonald, Iain L., Lapham, Brendon M.

“…We discuss here two examples of estimation by numerical maximization of penalized likelihood. We show that, in these examples, it is simpler not to use the EM…”
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