David M. Alexander

BLAST: the far-infrared/radio correlation in distant galaxies (2009)

Ivison, R. J., Alexander, David M., Biggs, Andy D., Brandt, W. N., Chapin, Edward L., Coppin, Kristen E. K., ...

We investigate the correlation between far-infrared (FIR) and radio luminosities in distant galaxies, a lynchpin of modern astronomy. We use data from the Balloon-borne Large Aperture Submillimetre...

A submillimetre galaxy at z=4.76 in the LABOCA survey of the Extended Chandra Deep Field South (2009)

Coppin, Kristen, Smail, Ian, Alexander, David M., Weiss, Axel, Walter, Fabian, Swinbank, Mark, ...

We report on the identification of the highest redshift submm-selected source currently known: LESSJ033229.4-275619. This source was detected in the Large Apex BOlometer CAmera (LABOCA) Extended...

Constraining Star Formation and AGN in z~2 Massive Galaxies using High Resolution MERLIN Radio Observations (2009)

Casey, Caitlin M., Chapman, Scott C., Muxlow, Tom W. B., Beswick, Rob J., Alexander, David M., Conselice, Christopher J.

We present high spatial resolution MERLIN 1.4GHz radio observations of two high redshift (z~2) sources, RGJ123623 (HDF147) and RGJ123617 (HDF130), selected as the brightest radio sources from a...

The nature of faint SPITZER-selected dust-obscured galaxies (2008)

Pope, Alexandra, Bussmann, R. Shane, Dey, Arjun, Meger, Nicole, Alexander, David M., Brodwin, Mark, ...

We use deep far-IR, submillimeter, radio, and X-ray imaging and mid-IR spectroscopy to explore the nature of a sample of Spitzer-selected dust-obscured galaxies (DOGs) in GOODS-N. A sample of 79...

The nature of faint Spitzer-selected dust-obscured galaxies (2008)

Pope, Alexandra, Bussmann, R. Shane, Dey, Arjun, Meger, Nicole, Alexander, David M., Brodwin, Mark, ...

We use deep far-IR, submm, radio and X-ray imaging and mid-IR spectroscopy to explore the nature of a sample of Spitzer-selected dust-obscured galaxies (DOGs) in GOODS-N. A sample of 79 galaxies...

Mid-infrared spectral diagnosis of submillimeter galaxies (2008)

Pope, Alexandra, Ranga-Ram, Chary, Alexander, David M., Armus, Lee, Dickinson, Mark, Elbaz, David, ...

We present deep mid-IR spectroscopy with Spitzer of 13 SMGs in the GOODS-N field. We find strong PAH emission in all of our targets, which allows us to measure mid-IR spectroscopic redshifts and...

Mid-infrared spectral diagnosis of submillimeter galaxies (2008)

Pope, Alexandra, Ranga-Ram, Chary, Alexander, David M., Armus, Lee, Dickinson, Mark, Elbaz, David, ...

We present deep mid-IR spectroscopy with Spitzer of 13 SMGs in the GOODS-N field.We find strong PAH emission in all of our targets, which allows us to measure mid-IR spectroscopic redshifts and place...

The nature of faint Spitzer-selected dust-obscured galaxies (2008)

Pope, Alexandra, Bussmann, R. Shane, Dey, Arjun, Meger, Nicole, Alexander, David M., Brodwin, Mark, ...

We use deep far-IR, submillimeter, radio, and X-ray imaging and mid-IR spectroscopy to explore the nature of a sample of Spitzer-selected dust-obscured galaxies (DOGs) in GOODS-N. A sample of 79...

Mid-Infrared Spectral Diagnosis of Submillimeter Galaxies (2007)

Pope, Alexandra, Chary, Ranga-Ram, Alexander, David M., Armus, Lee, Dickinson, Mark, Elbaz, David, ...

We present deep mid-infrared spectroscopy with the Spitzer Space Telescope of 13 submillimeter galaxies (SMGs) in the Great Observatories Origins Deep Survey North (GOODS-N) field. We find strong...

The Hubble deep field-north SCUBA super-map – IV. Characterizing submillimetre galaxies using deep Spitzer imaging (2006)

Pope, Alexandra, Scott, Douglas, Dickinson, Mark, Chary, Ranga-Ram, Morrison, Glenn, Borys, Colin, ...

We present spectral energy distributions (SEDs), Spitzer colours, and infrared (IR) luminosities for 850-μm selected galaxies in the Great Observatories Origins Deep Survey Northern (GOODS-N) field....

The Hubble Deep Field North SCUBA Super-map IV - Characterizing submillimetre galaxies using deep Spitzer imaging (2006)

Pope, Alexandra, Scott, Douglas, Dickinson, Mark, Chary, Ranga-Ram, Morrison, Glenn, Borys, Colin, ...

We present SEDs, Spitzer colours, and IR luminosities for 850 micron selected galaxies in the GOODS-N field. Using the deep Spitzer Legacy images and new data and reductions of the VLA-HDF radio...

Contribution of lateral interactions in V1 to organization of response properties (2006)

Wright, Jim J., Alexander, David M., Bourke, Paul D.

We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable...

Contribution of lateral interactions in V1 to organization of response properties (2006)

Wright, Jim J., Alexander, David M., Bourke, Paul D.

We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable...

Contribution of lateral interactions in V1 to organization of response properties (2006)

Wright, Jim J., Alexander, David M., Bourke, Paul D.

We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable...

Contribution of lateral interactions in V1 to organization of response properties (2006)

Wright, Jim J., Alexander, David M., Bourke, Paul D.

We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable...

Contribution of lateral interactions in V1 to organization of response properties (2006)

Wright, Jim J., Alexander, David M., Bourke, Paul D.

We propose a model of self-organization of synaptic connections in V1, emphasizing lateral interactions. Subject to Hebbian learning with decay, evolution of synaptic strengths proceeds to a stable...

Spitzer Number Counts of AGN in the GOODS fields (2005)

Treister, Ezequiel, Urry, C. Megan, Van Duyne, Jeffrey, Dickinson, Mark, Chary, Ranga-Ram, Alexander, David M., ...

We present mid-infrared observations of AGN in the GOODS fields, performed with the Spitzer Space Telescope. These are the deepest infrared and X-ray fields to date and cover a total area of ~0.1...

The changing ownership pattern of UK regional airports / (2005)

Alexander, David M.

Thesis(M.Sc. (Eng) -- University of Leeds (Institute for Transport Studies), 2005.

Intrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phil, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties --- such as orientation preference --- result from visuotopically organized local maps of non-retinotopic response...

Instrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phillip E, Konstandatos, Otto, Wright, James J., H. Speikreijse

The local-global map hypothesis states that locally organized response properties such as orientation preference result from visuotopically organized local maps of non-retinotopic response...

Instrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phillip E, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties such as orientation preference result from visuotopically organized local maps of non-retinotopic response...

Instrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phillip E, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties such as orientation preference result from visuotopically organized local maps of non-retinotopic response...

Intrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phil, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties --- such as orientation preference --- result from visuotopically organized local maps of non-retinotopic response...

Intrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phil, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties --- such as orientation preference --- result from visuotopically organized local maps of non-retinotopic response...

Intrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phil, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties --- such as orientation preference --- result from visuotopically organized local maps of non-retinotopic response...

Instrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phillip E, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties such as orientation preference result from visuotopically organized local maps of non-retinotopic response...

Intrinsic connections in tree shrew V1 imply a global to local mapping (2004)

Alexander, David M., Bourke, Paul D., Sheridan, Phil, Konstandatos, Otto, Wright, James J.

The local-global map hypothesis states that locally organized response properties --- such as orientation preference --- result from visuotopically organized local maps of non-retinotopic response...

Alpha rhythm emerges from large-scale networks of realistically coupled multicompartmental model cortical neurons (1999)

Liley, David T. J., Alexander, David M., Wright, James J., Aldous, Mathew D.

Cortical pyramidal and stellate neurons were simulated using the GENESIS simulation package. Model neurons were leaky integrate-and-fire and consisted of from four to nine passive compartments....

Alpha rhythm emerges from large-scale networks of realistically coupled multicompartmental model cortical neurons (1999)

Liley, David T. J., Alexander, David M., Wright, James J., Aldous, Mathew D.

Cortical pyramidal and stellate neurons were simulated using the GENESIS simulation package. Model neurons were leaky integrate-and-fire and consisted of from four to nine passive compartments....

Alpha rhythm emerges from large-scale networks of realistically coupled multicompartmental model cortical neurons (1999)

Liley, David T. J., Alexander, David M., Wright, James J., Aldous, Mathew D.

Cortical pyramidal and stellate neurons were simulated using the GENESIS simulation package. Model neurons were leaky integrate-and-fire and consisted of from four to nine passive compartments....

Alpha rhythm emerges from large-scale networks of realistically coupled multicompartmental model cortical neurons (1999)

Liley, David T. J., Alexander, David M., Wright, James J., Aldous, Mathew D.

Cortical pyramidal and stellate neurons were simulated using the GENESIS simulation package. Model neurons were leaky integrate-and-fire and consisted of from four to nine passive compartments....

Alpha rhythm emerges from large-scale networks of realistically coupled multicompartmental model cortical neurons (1999)

Liley, David T. J., Alexander, David M., Wright, James J., Aldous, Mathew D.

Cortical pyramidal and stellate neurons were simulated using the GENESIS simulation package. Model neurons were leaky integrate-and-fire and consisted of from four to nine passive compartments....