Hogan, E., Burleigh, M. R., Clarke, F. J.
The aim of the Degenerate Objects around Degenerate Objects (DODO) survey is to search for very low mass brown dwarfs and extrasolar planets in wide orbits around white dwarfs via direct imaging. The...
Hogan, E., Jameson, R. F., Casewell, S. L., Osbourne, S. L., Hambly, N. C.
We present the results of a proper motion survey of the Hyades to search for brown dwarfs, based on UKIDSS and 2MASS data. This survey covers ~275 square degrees to depth of K~15 mag, equivalent to a...
Burleigh, M. R., Clarke, F. J., Hogan, E., Brinkworth, C. S., Bergeron, P., Dufour, P., ...
We report limits in the planetary-mass regime for companions around the nearest single white dwarf to the Sun, van Maanen's star (vMa2), from deep J-band imaging with Gemini North and Spitzer...
Burleigh, M. R., Clarke, F. J., Hogan, E., Brinkworth, C. S., Bergeron, P., Dufour, P., ...
We report limits in the planetary-mass regime for companions around the nearest single white dwarf to the Sun, van Maanen's star (vMa 2), from deep J-band imaging with Gemini North and Spitzer IRAC...
Follow-up Observations of SPY White Dwarf + M-Dwarf Binaries. (2007)
Maxted, P.F.L., Napiwotzki, R., Marsh, T.R., Burleigh, M.R., Dobbie, P.D., Hogan, E., ...
Burleigh, M. R., Hogan, E., Dobbie, P. D., Napiwotzki, R., Maxted, P. F. L.
We present a near-infrared spectrum of the close, detached white dwarf + brown dwarf binary WD0137-349 (Maxted et al 2006), that directly reveals the substellar companion through an excess of flux...
Measurements of Ultracold-Neutron Lifetimes in Solid Deuterium (2002)
Morris, C. L., Anaya, J.M., Bowles, T. J., Filippone, B.W., Geltenbort, P., Hill, R. E., ...
We present the first measurements of the survival time of ultracold neutrons (UCNs) in solid deuterium (SD2). This critical parameter provides a fundamental limitation to the effectiveness of...
Many cell division cycle (cdc) mutants of Saccharomyces cerevisiae exhibit elevated mitotic loss of pDK243, a 14-kilobase minichromosome with a centromere and one autonomous replicating sequence...
Centromere position in budding yeast: evidence for anaphase A.
Guacci, V, Hogan, E, Koshland, D
Although general features of chromosome movement during the cell cycle are conserved among all eukaryotic cells, particular aspects vary between organisms. Understanding the basis for these...
Sethi, N, Monteagudo, M C, Koshland, D, Hogan, E, Burke, D J
Previous analysis of cdc20 mutants of the yeast Saccharomyces cerevisiae suggests that the CDC20 gene product (Cdc20p) is required for two microtubule-dependent processes, nuclear movements prior to...
Pigeons were trained on a matching-to-sample or oddity-from-sample task with shapes (circle and plus). Half of each group was exposed to “negative instance” trials i.e., for matching birds,...
Mitotic Transmission of Artificial Chromosomes in Cdc Mutants of the Yeast, Saccharomyces Cerevisiae
Palmer, R. E., Hogan, E., Koshland, D.
In the yeast, Saccharomyces cerevisiae, cell division cycle (CDC) genes have been identified whose products are required for the execution of different steps in the cell cycle. In this study, the...
Many cell division cycle (cdc) mutants of Saccharomyces cerevisiae exhibit elevated mitotic loss of pDK243, a 14-kilobase minichromosome with a centromere and one autonomous replicating sequence...
Centromere position in budding yeast: evidence for anaphase A.
Guacci, V, Hogan, E, Koshland, D
Although general features of chromosome movement during the cell cycle are conserved among all eukaryotic cells, particular aspects vary between organisms. Understanding the basis for these...
Sethi, N, Monteagudo, M C, Koshland, D, Hogan, E, Burke, D J
Previous analysis of cdc20 mutants of the yeast Saccharomyces cerevisiae suggests that the CDC20 gene product (Cdc20p) is required for two microtubule-dependent processes, nuclear movements prior to...
Mitotic Transmission of Artificial Chromosomes in Cdc Mutants of the Yeast, Saccharomyces Cerevisiae
Palmer, R. E., Hogan, E., Koshland, D.
In the yeast, Saccharomyces cerevisiae, cell division cycle (CDC) genes have been identified whose products are required for the execution of different steps in the cell cycle. In this study, the...
Pigeons were trained on a matching-to-sample or oddity-from-sample task with shapes (circle and plus). Half of each group was exposed to “negative instance” trials i.e., for matching birds,...