347 results on '"Marshall DJ"'
Search Results
2. Lack of IgA envelope-reactive antibody producing cells in terminal ileum in early and chronic HIV-1 infection
- Author
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Trama AM, Liao H, Foulger A, Marshall DJ, Whitesides JF, Parks R, Meyerhoff R, Lloyd KE, Donathan M, Lucas J, Soderberg K, Kepler TB, Vandergrift N, Yates N, Tomaras GD, Moody MA, and Haynes BF
- Subjects
Immunologic diseases. Allergy ,RC581-607 - Published
- 2012
- Full Text
- View/download PDF
3. Vaccine-induced ADCC-mediating antibodies target unique and overlapping envelope epitopes
- Author
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Pollara J, Bonsignori M, Moody M, Alam M, Liao H, Hwang K, Pickeral J, Kappes J, Ochsenbauer C, Soderberg K, Gurley TC, Kozink DM, Marshall DJ, Whitesides JF, Montefiori D, Robinson JE, Kaewkungwal J, Nitayaphan S, Pitisuttithum P, Rerks-Ngarm S, Kim J, Michael N, Tomaras G, Haynes BF, and Ferrari G
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Immunologic diseases. Allergy ,RC581-607 - Published
- 2012
- Full Text
- View/download PDF
4. Planck intermediate results
- Author
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Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Battaner, E, Benabed, K, Benoit-Lévy, A, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bobin, J, Bond, JR, Borrill, J, Bouchet, FR, Brogan, CL, Burigana, C, Cardoso, J-F, Catalano, A, Chamballu, A, Chiang, HC, Christensen, PR, Colombi, S, Colombo, LPL, Crill, BP, Curto, A, Cuttaia, F, Davies, RD, Davis, RJ, de Bernardis, P, de Rosa, A, de Zotti, G, Delabrouille, J, Désert, F-X, Dickinson, C, Diego, JM, Donzelli, S, Doré, O, Dupac, X, Enßlin, TA, Eriksen, HK, Finelli, F, Forni, O, Frailis, M, Fraisse, AA, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giraud-Héraud, Y, González-Nuevo, J, Górski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, DL, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, SR, Hobson, M, Holmes, WA, Huffenberger, KM, Jaffe, AH, Jaffe, TR, Keihänen, E, Keskitalo, R, Kisner, TS, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lähteenmäki, A, Lamarre, J-M, Lasenby, A, Lawrence, CR, Leonardi, R, Liguori, M, Lilje, PB, Linden-Vørnle, M, López-Caniego, M, Lubin, PM, Maino, D, Maris, M, Marshall, DJ, Martin, PG, Martínez-González, E, Masi, S, Matarrese, S, Mazzotta, P, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Miville-Deschênes, M-A, Moneti, A, Montier, L, Morgante, G, and Mortlock, D
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Astronomical Sciences ,Physical Sciences ,Affordable and Clean Energy ,ISM: supernova remnants ,cosmic rays ,radio continuum: ISM ,astro-ph.GA ,Astronomical and Space Sciences ,Astronomy & Astrophysics ,Astronomical sciences ,Particle and high energy physics ,Space sciences - Abstract
The all-sky Planck survey in 9 frequency bands was used to search for emission from all 274 known Galactic supernova remnants. Of these, 16 were detected in at least two Planck frequencies. The radio-through-microwave spectral energy distributions were compiled to determine the mechanism for microwave emission. In only one case, IC 443, is there high-frequency emission clearly from dust associated with the supernova remnant. In all cases, the low-frequency emission is from synchrotron radiation. As predicted for a population of relativistic particles with energy distribution that extends continuously to high energies, a single power law is evident for many sources, including the Crab and PKS 1209-51/52. A decrease in flux density relative to the extrapolation of radio emission is evident in several sources. Their spectral energy distributions can be approximated as broken power laws, Sν ∝ ν-α, with the spectral index, α, increasing by 0.5-1 above a break frequency in the range 10-60 GHz. The break could be due to synchrotron losses.
- Published
- 2016
5. Planck intermediate results: XXXI. Microwave survey of Galactic supernova remnants
- Author
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Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Battaner, E, Benabed, K, Benoit-Lévy, A, Bernard, JP, Bersanelli, M, Bielewicz, P, Bobin, J, Bond, JR, Borrill, J, Bouchet, FR, Brogan, CL, Burigana, C, Cardoso, JF, Catalano, A, Chamballu, A, Chiang, HC, Christensen, PR, Colombi, S, Colombo, LPL, Crill, BP, Curto, A, Cuttaia, F, Davies, RD, Davis, RJ, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Désert, FX, Dickinson, C, Diego, JM, Donzelli, S, Doré, O, Dupac, X, Enßlin, TA, Eriksen, HK, Finelli, F, Forni, O, Frailis, M, Fraisse, AA, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giraud-Héraud, Y, González-Nuevo, J, Górski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, DL, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, SR, Hobson, M, Holmes, WA, Huffenberger, KM, Jaffe, AH, Jaffe, TR, Keihänen, E, Keskitalo, R, Kisner, TS, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lähteenmäki, A, Lamarre, JM, Lasenby, A, Lawrence, CR, Leonardi, R, Liguori, M, Lilje, PB, Linden-Vørnle, M, López-Caniego, M, Lubin, PM, Maino, D, Maris, M, Marshall, DJ, Martin, PG, Martínez-González, E, Masi, S, Matarrese, S, Mazzotta, P, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Miville-Deschênes, MA, Moneti, A, Montier, L, Morgante, G, and Mortlock, D
- Subjects
ISM: supernova remnants ,cosmic rays ,radio continuum: ISM ,astro-ph.GA ,Astronomy & Astrophysics ,Astronomical and Space Sciences - Abstract
The all-sky Planck survey in 9 frequency bands was used to search for emission from all 274 known Galactic supernova remnants. Of these, 16 were detected in at least two Planck frequencies. The radio-through-microwave spectral energy distributions were compiled to determine the mechanism for microwave emission. In only one case, IC 443, is there high-frequency emission clearly from dust associated with the supernova remnant. In all cases, the low-frequency emission is from synchrotron radiation. As predicted for a population of relativistic particles with energy distribution that extends continuously to high energies, a single power law is evident for many sources, including the Crab and PKS 1209-51/52. A decrease in flux density relative to the extrapolation of radio emission is evident in several sources. Their spectral energy distributions can be approximated as broken power laws, Sν ∝ ν-α, with the spectral index, α, increasing by 0.5-1 above a break frequency in the range 10-60 GHz. The break could be due to synchrotron losses.
- Published
- 2016
6. Planck 2013 results. XXVII. Doppler boosting of the CMB: Eppur si muove⋆
- Author
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Aghanim, N, Armitage-Caplan, C, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Bartlett, JG, Benabed, K, Benoit-Lévy, A, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bobin, J, Bock, JJ, Bond, JR, Borrill, J, Bouchet, FR, Bridges, M, Burigana, C, Butler, RC, Cardoso, J-F, Catalano, A, Challinor, A, Chamballu, A, Chiang, HC, Chiang, L-Y, Christensen, PR, Clements, DL, Colombo, LPL, Couchot, F, Crill, BP, Curto, A, Cuttaia, F, Danese, L, Davies, RD, Davis, RJ, de Bernardis, P, de Rosa, A, de Zotti, G, Delabrouille, J, Diego, JM, Donzelli, S, Doré, O, Dupac, X, Efstathiou, G, Enßlin, TA, Eriksen, HK, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giardino, G, González-Nuevo, J, Górski, KM, Gratton, S, Gregorio, A, Gruppuso, A, Hansen, FK, Hanson, D, Harrison, DL, Helou, G, Hildebrandt, SR, Hivon, E, Hobson, M, Holmes, WA, Hovest, W, Huffenberger, KM, Jones, WC, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, TS, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lähteenmäki, A, Lamarre, J-M, Lasenby, A, Laureijs, RJ, Lawrence, CR, Leonardi, R, Lewis, A, Liguori, M, Lilje, PB, Linden-Vørnle, M, López-Caniego, M, Lubin, PM, Macías-Pérez, JF, Mandolesi, N, Maris, M, Marshall, DJ, Martin, PG, and Martínez-González, E
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Particle and High Energy Physics ,Physical Sciences ,cosmology: observations ,cosmic background radiation ,reference systems ,relativistic processes ,astro-ph.CO ,Astronomical and Space Sciences ,Astronomy & Astrophysics ,Astronomical sciences ,Particle and high energy physics ,Space sciences - Abstract
Our velocity relative to the rest frame of the cosmic microwave background (CMB) generates a dipole temperature anisotropy on the sky which has been well measured for more than 30 years, and has an accepted amplitude of v/c = 1.23 × 10-3, or v = 369. In addition to this signal generated by Doppler boosting of the CMB monopole, our motion also modulates and aberrates the CMB temperature fluctuations (as well as every other source of radiation at cosmological distances). This is an order 10-3 effect applied to fluctuations which are already one part in roughly 105, so it is quite small. Nevertheless, it becomes detectable with the all-sky coverage, high angular resolution, and low noise levels of the Planck satellite. Here we report a first measurement of this velocity signature using the aberration and modulation effects on the CMB temperature anisotropies, finding a component in the known dipole direction, (l,b) = (264°,48°), of 384 km s-1 ± 78 km s-1 (stat.) ± 115 km s-1 (syst.). This is a significant confirmation of the expected velocity.
- Published
- 2014
7. Planck intermediate results. XII: Diffuse galactic components in the gould belt system
- Author
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Ade, PAR, Aghanim, N, Alves, MIR, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, AJ, Barreiro, RB, Bartlett, JG, Battaner, E, Bedini, L, Benabed, K, Benoît, A, Bernard, JP, Bersanelli, M, Bonaldi, A, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Burigana, C, Butler, RC, Cabella, P, Cardoso, JF, Chen, X, Chiang, LY, Christensen, PR, Clements, DL, Colombi, S, Colombo, LPL, Coulais, A, Cuttaia, F, Davies, RD, Davis, RJ, De Bernardis, P, De Gasperis, G, De Zotti, G, Delabrouille, J, Dickinson, C, Diego, JM, Dobler, G, Dole, H, Donzelli, S, Doré, O, Douspis, M, Dupac, X, Enßlin, TA, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Génova-Santos, RT, Ghosh, T, Giard, M, Giardino, G, Giraud-Héraud, Y, González-Nuevo, J, Górski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, D, Hernández-Monteagudo, C, Hildebrandt, SR, Hivon, E, Hobson, M, Holmes, WA, Hornstrup, A, Hovest, W, Huffenberger, KM, Jaffe, TR, Jaffe, AH, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, TS, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, JM, Lasenby, A, Lawrence, CR, Leach, S, Leonardi, R, Lilje, PB, Linden-Vørnle, M, Lubin, PM, Macías-Pérez, JF, Maffei, B, Maino, D, Mandolesi, N, Maris, M, and Marshall, DJ
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Galaxy: general ,radio continuum: ISM ,radiation mechanisms: general ,astro-ph.GA ,astro-ph.CO ,Astronomy & Astrophysics ,Astronomical and Space Sciences - Abstract
We perform an analysis of the diffuse low-frequency Galactic components inthe Southern part of the Gould Belt system (130^\circ\leq l\leq 230^\circ and-50^\circ\leq b\leq -10^\circ). Strong ultra-violet (UV) flux coming from theGould Belt super-association is responsible for bright diffuse foregrounds thatwe observe from our position inside the system and that can help us improve ourknowledge of the Galactic emission. Free-free emission and anomalous microwaveemission (AME) are the dominant components at low frequencies (\nu < 40 GHz),while synchrotron emission is very smooth and faint. We separate diffusefree-free emission and AME from synchrotron emission and thermal dust emissionby using Planck data, complemented by ancillary data, using the "CorrelatedComponent Analysis" (CCA) component separation method and we compare with theresults of cross-correlation of foreground templates with the frequency maps.We estimate the electron temperature T_e from H$\alpha$ and free-free emissionusing two methods (temperature-temperature plot and cross-correlation) and weobtain T_e ranging from 3100 to 5200 K, for an effective fraction of absorbingdust along the line of sight of 30% (f_d=0.3). We estimate the frequencyspectrum of the diffuse AME and we recover a peak frequency (in flux densityunits) of 25.5 \pm 1.5 GHz. We verify the reliability of this result withrealistic simulations that include the presence of biases in the spectral modelfor the AME and in the free-free template. By combining physical models forvibrational and rotational dust emission and adding the constraints from thethermal dust spectrum from Planck and IRAS we are able to get a gooddescription of the frequency spectrum of the AME for plausible values of thelocal density and radiation field.
- Published
- 2013
8. Planck intermediate results. XII: Diffuse Galactic components in the Gould Belt system ⋆
- Author
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Ade, PAR, Aghanim, N, Alves, MIR, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, AJ, Barreiro, RB, Bartlett, JG, Battaner, E, Bedini, L, Benabed, K, Benoît, A, Bernard, J-P, Bersanelli, M, Bonaldi, A, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Burigana, C, Butler, RC, Cabella, P, Cardoso, J-F, Chen, X, Chiang, L-Y, Christensen, PR, Clements, DL, Colombi, S, Colombo, LPL, Coulais, A, Cuttaia, F, Davies, RD, Davis, RJ, de Bernardis, P, de Gasperis, G, de Zotti, G, Delabrouille, J, Dickinson, C, Diego, JM, Dobler, G, Dole, H, Donzelli, S, Doré, O, Douspis, M, Dupac, X, Enßlin, TA, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Génova-Santos, RT, Ghosh, T, Giard, M, Giardino, G, Giraud-Héraud, Y, González-Nuevo, J, Górski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, D, Hernández-Monteagudo, C, Hildebrandt, SR, Hivon, E, Hobson, M, Holmes, WA, Hornstrup, A, Hovest, W, Huffenberger, KM, Jaffe, TR, Jaffe, AH, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, TS, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J-M, Lasenby, A, Lawrence, CR, Leach, S, Leonardi, R, Lilje, PB, Linden-Vørnle, M, Lubin, PM, Macías-Pérez, JF, Maffei, B, Maino, D, Mandolesi, N, Maris, M, and Marshall, DJ
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Astronomical Sciences ,Physical Sciences ,Galaxy: general ,radio continuum: ISM ,radiation mechanisms: general ,astro-ph.GA ,astro-ph.CO ,Astronomical and Space Sciences ,Astronomy & Astrophysics ,Astronomical sciences ,Particle and high energy physics ,Space sciences - Abstract
We perform an analysis of the diffuse low-frequency Galactic components inthe Southern part of the Gould Belt system (130^\circ\leq l\leq 230^\circ and-50^\circ\leq b\leq -10^\circ). Strong ultra-violet (UV) flux coming from theGould Belt super-association is responsible for bright diffuse foregrounds thatwe observe from our position inside the system and that can help us improve ourknowledge of the Galactic emission. Free-free emission and anomalous microwaveemission (AME) are the dominant components at low frequencies (u < 40 GHz),while synchrotron emission is very smooth and faint. We separate diffusefree-free emission and AME from synchrotron emission and thermal dust emissionby using Planck data, complemented by ancillary data, using the "CorrelatedComponent Analysis" (CCA) component separation method and we compare with theresults of cross-correlation of foreground templates with the frequency maps.We estimate the electron temperature T_e from H$\alpha$ and free-free emissionusing two methods (temperature-temperature plot and cross-correlation) and weobtain T_e ranging from 3100 to 5200 K, for an effective fraction of absorbingdust along the line of sight of 30% (f_d=0.3). We estimate the frequencyspectrum of the diffuse AME and we recover a peak frequency (in flux densityunits) of 25.5 \pm 1.5 GHz. We verify the reliability of this result withrealistic simulations that include the presence of biases in the spectral modelfor the AME and in the free-free template. By combining physical models forvibrational and rotational dust emission and adding the constraints from thethermal dust spectrum from Planck and IRAS we are able to get a gooddescription of the frequency spectrum of the AME for plausible values of thelocal density and radiation field.
- Published
- 2013
9. Relatedness affects the density, distribution and phenotype of colonisers in four sessile marine invertebrates
- Author
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Aguirre, JD, Miller, SH, Morgan, SG, and Marshall, DJ
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Ecology - Abstract
Genetic diversity has emerged as an important source of variation in the ecological properties of populations, but there are few studies of genetic diversity effects on colonisation processes. This relative scarcity of studies is surprising given the influence of colonisation on species coexistence, invasion, and population persistence. Here, we manipulated relatedness in experimental populations of colonising larvae in four sessile marine invertebrates. We then examined the influence of coloniser relatedness on the number, spatial arrangement and phenotype of colonisers following permanent settlement. Overall, relatedness influenced colonisation in all four species, but the effects of relatedness on colonisation differed among species. The variable responses of species to manipulations of relatedness likely reflect differences in intensity of inter- and intra-specific competition among adults, as well as the differential consequences of larval behaviours for each species. Relatedness appears to play an underappreciated role in the colonisation process, and we recommend that future studies of genetic diversity effects consider not only adult stages - the focus of most work to date - but also the importance of genetic diversity in early life history stages. © 2012 The Authors. Oikos © 2012 Nordic Society Oikos.
- Published
- 2013
10. Long-term experimental evolution decouples size and production costs in Escherichia coli
- Author
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Marshall, DJ, Malerba, Martino, Lines, T, Sezmis, AL, Hasan, CM, Lenski, RE, McDonald, MJ, Marshall, DJ, Malerba, Martino, Lines, T, Sezmis, AL, Hasan, CM, Lenski, RE, and McDonald, MJ
- Abstract
Body size covaries with population dynamics across life's domains. Metabolism may impose fundamental constraints on the coevolution of size and demography, but experimental tests of the causal links remain elusive. We leverage a 60,000-generation experiment in which Escherichia coli populations evolved larger cells to examine intraspecific metabolic scaling and correlations with demographic parameters. Over the course of their evolution, the cells have roughly doubled in size relative to their ancestors. These larger cells have metabolic rates that are absolutely higher, but relative to their size, they are lower. Metabolic theory successfully predicted the relations between size, metabolism, and maximum population density, including support for Damuth's law of energy equivalence, such that populations of larger cells achieved lower maximum densities but higher maximum biomasses than populations of smaller cells. The scaling of metabolism with cell size thus predicted the scaling of size with maximum population density. In stark contrast to standard theory, however, populations of larger cells grew faster than those of smaller cells, contradicting the fundamental and intuitive assumption that the costs of building new individuals should scale directly with their size. The finding that the costs of production can be decoupled from size necessitates a reevaluation of the evolutionary drivers and ecological consequences of biological size more generally.
- Published
- 2022
11. Cell size influences inorganic carbon acquisition in artificially selected phytoplankton
- Author
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Malerba, ME, Marshall, DJ, Palacios, MM, Raven, JA, and Beardall, J
- Subjects
Plant Biology & Botany ,Phytoplankton ,Carbon Dioxide ,Photosynthesis ,06 Biological Sciences, 07 Agricultural and Veterinary Sciences ,Carbon ,Carbonic Anhydrases ,Cell Size - Abstract
Cell size influences the rate at which phytoplankton assimilate dissolved inorganic carbon (DIC), but it is unclear whether volume-specific carbon uptake should be greater in smaller or larger cells. On the one hand, Fick's Law predicts smaller cells to have a superior diffusive CO2 supply. On the other, larger cells may have greater scope to invest metabolic energy to upregulate active transport per unit area through CO2 -concentrating mechanisms (CCMs). Previous studies have focused on among-species comparisons, which complicates disentangling the role of cell size from other covarying traits. In this study, we investigated the DIC assimilation of the green alga Dunaliella tertiolecta after using artificial selection to evolve a 9.3-fold difference in cell volume. We compared CO2 affinity, external carbonic anhydrase (CAext ), isotopic signatures (δ13 C) and growth among size-selected lineages. Evolving cells to larger sizes led to an upregulation of CCMs that improved the DIC uptake of this species, with higher CO2 affinity, higher CAext and higher δ13 C. Larger cells also achieved faster growth and higher maximum biovolume densities. We showed that evolutionary shifts in cell size can alter the efficiency of DIC uptake systems to influence the fitness of a phytoplankton species.
- Published
- 2020
12. Facultative feeding in a marine copepod: effects of larval food and temperature on performance
- Author
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Gangur, AN, primary and Marshall, DJ, additional
- Published
- 2020
- Full Text
- View/download PDF
13. Planck intermediate results XV. A study of anomalous microwave emission in Galactic clouds (vol 565, A103, 2014)
- Author
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Ade, PAR, Aghanim, N, Alves, MIR, Arnaud, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Battaner, E, Benabed, K, Benoit-Levy, A, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bobin, J, Bonaldi, A, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Burigana, C, Cardoso, J-F, Casassus, S, Catalano, A, Chamballu, A, Chen, X, Chiang, HC, Chiang, L-Y, Christensen, PR, Clements, DL, Colombi, S, Colombo, LPL, Couchot, F, Crill, BP, Cuttaia, F, Danese, L, Davies, RD, Davis, RJ, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Desert, F-X, Dickinson, C, Diego, JM, Donzelli, S, Dore, O, Dupac, X, Ensslin, TA, Eriksen, HK, Finelli, F, Forni, O, Franceschi, E, Galeotta, S, Ganga, K, Genova-Santos, RT, Ghosh, T, Giard, M, Gonzalez-Nuevo, J, Gorski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, DL, Helou, G, Hernandez-Monteagudo, C, Hildebrandt, SR, Hivon, E, Hobson, M, Hornstrup, A, Jaffe, AH, Jaffe, TR, Jones, WC, Keihanen, E, Keskitalo, R, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lahteenmaki, A, Lamarre, J-M, Lasenby, A, Lawrence, CR, Leonardi, R, Liguori, M, Lilje, PB, Linden-Vornle, M, Lopez-Caniego, M, Macias-Perez, JF, Maffei, B, Maino, D, Mandolesi, N, Marshall, DJ, Martin, PG, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Mazzotta, P, Meinhold, PR, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Miville-Deschenes, M-A, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Naselsky, P, Nati, F, Natoli, P, Norgaard-Nielsen, HU, Noviello, F, Novikov, D, Novikov, I, Oxborrow, CA, Pagano, L, Pajot, F, Paladini, R, Paoletti, D, Patanchon, G, Pearson, TJ, Peel, M, Perdereau, O, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Pratt, GW, Prunet, S, Puget, J-L, Rachen, JP, Rebolo, R, Reich, W, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rubino-Martin, JA, Rusholme, B, Sandri, M, Savini, G, Scott, D, Spencer, LD, Stolyarov, V, Sutton, D, Suur-Uski, A-S, Sygnet, J-F, Tauber, JA, Tavagnacco, D, Terenzi, L, Tibbs, CT, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Valenziano, L, Valiviita, J, Van Tent, B, Varis, J, Verstraete, L, Vielva, P, Villa, F, Wandelt, BD, Watson, R, Wilkinson, A, Ysard, N, Yvon, D, Zacchei, A, Zonca, A, Science and Technology Facilities Council (STFC), and Science and Technology Facilities Council [2006-2012]
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HII regions ,Science & Technology ,CENTIMETER-WAVE CONTINUUM ,astro-ph.GA ,radiation mechanisms: general ,Astronomy & Astrophysics ,SMALL ARRAY ,STAR-FORMATION ,radio continuum: ISM ,submillimeter: ISM ,errata, addenda ,Settore FIS/05 - Astronomia e Astrofisica ,GHZ SKY SURVEY ,Physical Sciences ,PROBE WMAP OBSERVATIONS ,0201 Astronomical and Space Sciences ,MOLECULAR CLOUDS ,PRE-LAUNCH STATUS ,ANISOTROPY-PROBE ,SPINNING DUST EMISSION ,H-II ,addenda ,errata - Abstract
This article is an erratum for: https://doi.org/10.1051/0004-6361/201322612
- Published
- 2018
14. Avoiding low-oxygen environments: oxytaxis as a mechanism of habitat selection in a marine invertebrate
- Author
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Lagos, ME, primary, White, CR, additional, and Marshall, DJ, additional
- Published
- 2015
- Full Text
- View/download PDF
15. Planck intermediate results V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effect (vol 550, A131, 2013)
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Ade, PAR, Aghanim, N, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, AJ, Barreiro, RB, Bartlett, JG, Battaner, E, Benabed, K, Benoit, A, Bernard, J-P, Bersanelli, M, Bhatia, R, Bikmaev, I, Bobin, J, Boehringer, H, Bonaldi, A, Bond, JR, Borgani, S, Borrill, J, Bouchet, FR, Bourdin, H, Brown, ML, Burenin, R, Burigana, C, Cabella, P, Cardoso, J-F, Carvalho, P, Castex, G, Catalano, A, Cayon, L, Chamballu, A, Chiang, L-Y, Chon, G, Christensen, PR, Churazov, E, Clements, DL, Colafrancesco, S, Colombi, S, Colombo, LPL, Comis, B, Coulais, A, Crill, BP, Cuttaia, F, Da Silva, A, Dahle, H, Danese, L, Davis, RJ, de Bernardis, P, de Gasperis, G, de Zotti, G, Delabrouille, J, Democles, J, Desert, F-X, Diego, JM, Dolag, K, Dole, H, Donzelli, S, Dore, O, Doerl, U, Douspis, M, Dupac, X, Efstathiou, G, Ensslin, TA, Eriksen, HK, Finelli, F, Flores-Cacho, I, Forni, O, Fosalba, P, Frailis, M, Franceschi, E, Frommert, M, Galeotta, S, Ganga, K, Genova-Santos, RT, Giard, M, Giraud-Heraud, Y, Gonzalez-Nuevo, J, Gorski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, D, Hempel, A, Henrot-Versille, S, Hernandez-Monteagudo, C, Herranz, D, Hildebrandt, SR, Hivon, E, Hobson, M, Holmes, WA, Hurier, G, Jaffe, TR, Jaffe, AH, Jagemann, T, Jones, WC, Juvela, M, Keihanen, E, Khamitov, I, Kisner, TS, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lahteenmaki, A, Lamarre, J-M, Lasenby, A, Lawrence, CR, Le Jeune, M, Leonardi, R, Liddle, A, Lilje, PB, Lopez-Caniego, M, Luzzi, G, Macias-Perez, JF, Maino, D, Mandolesi, N, Maris, M, Marleau, F, Marshall, DJ, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Mazzotta, P, Mei, S, Melchiorri, A, Melin, J-B, Mendes, L, Mennella, A, Mitra, S, Miville-Deschenes, M-A, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Murphy, JA, Naselsky, P, Nati, F, Natoli, P, Norgaard-Nielsen, HU, Noviello, F, Novikov, D, Novikov, I, Osborne, S, Pajot, F, Paoletti, D, Pasian, F, Patanchon, G, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Piffaretti, R, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, GW, Prunet, S, Puget, J-L, Rachen, JP, Reach, WT, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Roman, M, Rosset, C, Rossetti, M, Rubino-Martin, JA, Rusholme, B, Sandri, M, Savini, G, Scott, D, Smoot, GF, Starck, J-L, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A-S, Sygnet, J-F, Tauber, JA, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tuovinen, J, Valenziano, L, Van Tent, B, Varis, J, Vielva, P, Villa, F, Vittorio, N, Wade, LA, Wandelt, BD, Welikala, N, White, SDM, White, M, Yvon, D, Zacchei, A, Zonca, A, and Collaboration, P
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clusters: intracluster medium [galaxies] ,general [X-rays] ,clusters: general [galaxies] ,general [submillimeter] ,errata, addenda ,observations [cosmology] - Published
- 2013
16. Non-contact competition in a sessile marine invertebrate: causes and consequences
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Thompson, ML, primary, Marshall, DJ, additional, and Monro, K, additional
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- 2015
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17. Burning and grazing of a Themeda grassland : estimates of phytomass and root element concentrations
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Downing, BH and Marshall, DJ
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No Abstract. African Journal of Range and Forage Science Vol. 18 (1)1983: pp.155_158
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- 2008
18. Isolation of Mycobacterium avium subsp paratuberculosis from environmental samples collected from farms before and after destocking sheep with paratuberculosis
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Richard Whittington, Marshall Dj, Taylor Pj, L.A. Reddacliff, I. Marsh, and C. A. Taragel
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Veterinary medicine ,Colony Count, Microbial ,Paratuberculosis ,Sheep Diseases ,Biology ,Sensitivity and Specificity ,Microbiology ,Feces ,medicine ,Animals ,Radiometry ,Incubation ,Soil Microbiology ,Disease Reservoirs ,Bacteriological Techniques ,High prevalence ,Goat Diseases ,Sheep ,General Veterinary ,Goats ,General Medicine ,Field survey ,medicine.disease ,Soil type ,Water sample ,Mycobacterium avium subsp. paratuberculosis ,Water Microbiology - Abstract
Objective To determine whether Mycobacterium avium subsp paratuberculosis could be isolated from soil-pasture, faecal, water and sediment samples on farms before and after removal of sheep with paratuberculosis. Design A feasibility study and subsequent field survey. Procedure First the analytical sensitivity of radiometric culture of the organism from two types of soil was determined relative to faeces. Then soil-pasture, faecal, water and sediment samples were collected for culture from a range of sites from 6 farms with paratuberculosis affected sheep and goats. Similar samples were collected from 20 farms at least 9 months after removal of infected stock. Results The analytical sensitivity of culture of M a para-tuberculosisfrom soil samples was 2 orders of magnitude less than that from faeces, and environmental samples required longer incubation periods to yield significant growth in radio-metric culture (BACTEC) medium. However, the organism was recovered from approximately 20% of 163 soil-pasture, water and sediment samples from 6 properties with clinically-affected animals with paratuberculosis. The positive samples were from a range of topographic sites, including open exposed and dry areas, however, low lying areas tended to have larger numbers of organisms. When the same sites were sampled again about 5 months later, only 1 was culture positive, and none were culture positive > 12 months later. Of 17 water and dam sediment samples collected from farm 6, which had long-standing high prevalence OJD infection, only one water sample and one sediment from the same dam were culture positive. None of the 5 water samples from the other farms were culture positive. Of 96 water samples, 90 sediment samples and 93 soil samples from farms that had been destocked of infected sheep/goats for 9 to 24 months, one sediment sample from a farm in Victoria (destocked for 12 months) and two sediment samples from a farm in New South Wales (10, 19 months) were culture positive. Recontamination from cattle or water could not be excluded as a cause of the positive cultures from the second farm. Conclusion M a paratuberculosis can be detected by radiometric culture in environmental samples from farms grazed by sheep or goats with paratuberculosis. There is a relatively low likelihood of recovery of the organism from water samples from such farms, and at 5 or more months after removing stock with paratuberculosis the likelihood of positive cultures from environmental samples is very low. Although the analytical sensitivity of culture from environmental samples is less than that from faeces, surveys of environmental sites are nevertheless feasible. However, improved culture methods are needed for critical surveys and to study the movement and fate of the organism in the environment.
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- 2004
19. Relative influence of resident species and environmental variation on community assembly
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Riedel, A, primary, Monro, K, additional, Blows, MW, additional, and Marshall, DJ, additional
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- 2014
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20. Minimal increase in genetic diversity enhances predation resistance
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Koh, KS, Matz, C, Tan, CH, Le, HL, Rice, SA, Marshall, DJ, Steinberg, PD, Kjelleberg, S, Koh, KS, Matz, C, Tan, CH, Le, HL, Rice, SA, Marshall, DJ, Steinberg, PD, and Kjelleberg, S
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The importance of species diversity to emergent, ecological properties of communities is increasingly appreciated, but the importance of within-species genetic diversity for analogous emergent properties of populations is only just becoming apparent. Here, the properties and effects of genetic variation on predation resistance in populations were assessed and the molecular mechanism underlying these emergent effects was investigated. Using biofilms of the ubiquitous bacterium Serratia marcescens, we tested the importance of genetic diversity in defending biofilms against protozoan grazing, a main source of mortality for bacteria in all natural ecosystems. S. marcescens biofilms established from wild-type cells produce heritable, stable variants, which when experimentally combined, persist as a diverse assemblage and are significantly more resistant to grazing than either wild type or variant biofilms grown in monoculture. This diversity effect is biofilm-specific, a result of either facilitation or resource partitioning among variants, with equivalent experiments using planktonic cultures and grazers resulting in dominance by a single resistant strain. The variants studied are all the result of single nucleotide polymorphisms in one regulatory gene suggesting that the benefits of genetic diversity in clonal biofilms can occur through remarkably minimal genetic change. The findings presented here provide a new insight on the integration of genetics and population ecology, in which diversity arising through minimal changes in genotype can have major ecological implications for natural populations. © 2011 Blackwell Publishing Ltd.
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- 2012
21. Less inhibited with age? Larval age modifies responses to natural settlement inhibitors
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Gribben, PE, Marshall, DJ, Steinberg, PD, Gribben, PE, Marshall, DJ, and Steinberg, PD
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As larvae of marine invertebrates age, their response to settlement cues can change. This change can have significant consequences to both the ecology of these organisms, and to their response to antifouling coatings. This study examines how larval age affects the settlement response of larvae to two naturally derived settlement inhibitors, non-polar extracts from the algae Delisea pulchra and Dilophus marginatus, the former of which contains compounds that are in commercial development as antifoulants. Two species of marine invertebrates with non-feeding larvae were investigated: the bryozoans Watersipora subtorquata and Bugula neritina. Larval age strongly affected larval settlement, with older larvae settling at much higher rates than younger larvae. Despite having strong, inhibitory effects on young larvae, the non-polar extracts did not inhibit the settlement of older larvae to the same degree for both species studied. The results show that the effects of ecologically realistic settlement inhibitors are highly dependent on larval age. Given that the age of settling larvae is likely to be variable in the field, such age specific variation in settlement response of larvae may have important consequences for host-epibiont interactions in natural communities. © 2006 Taylor & Francis.
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- 2006
22. Initial offspring size mediates trade-off between fecundity and longevity in the field
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Kesselring, H, primary, Wheatley, R, additional, and Marshall, DJ, additional
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- 2012
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23. Field estimates of planktonic larval duration in a marine invertebrate
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Burgess, SC, primary and Marshall, DJ, additional
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- 2011
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24. Responses to conspecific density in an arborescent bryozoan
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Gooley, TA, primary, Marshall, DJ, additional, and Monro, K, additional
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- 2010
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25. Serum antibody responses in sheep after natural infection with Bacteroides nodosus
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Whittington, RJ, primary, Marshall, DJ, additional, Walker, RI, additional, and Turner, MJ, additional
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- 2010
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26. Larval size in Elysia stylifera is determined by extra-embryonic provisioning but not egg size
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Allen, RM, primary, Krug, PJ, additional, and Marshall, DJ, additional
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- 2009
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27. Desperate larvae: influence of deferred costs and habitat requirements on habitat selection
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Elkin, C, primary and Marshall, DJ, additional
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- 2007
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28. Copper reduces fertilisation success and exacerbates Allee effects in the field
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Hollows, CF, primary, Johnston, EL, additional, and Marshall, DJ, additional
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- 2007
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29. Consequences of spawning at low tide: limited gamete dispersal for a rockpool anemone
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Marshall, DJ, primary, Semmens, D, additional, and Cook, C, additional
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- 2004
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30. Variable effects of larval size on post-metamorphic performance in the field
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Marshall, DJ, primary and Keough, MJ, additional
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- 2004
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31. When the going gets rough: effect of maternal size manipulation on larval quality
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Marshall, DJ, primary and Keough, MJ, additional
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- 2004
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32. Isolation of Mycobacterium avium subsp paratuberculosis from environmental samples collected from farms before and after destocking sheep with paratuberculosis
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WHITTINGTON, RJ, primary, MARSH, IB, additional, TAYLOR, PJ, additional, MARSHALL, DJ, additional, TARAGEL, C., additional, and REDDACLIFF, LA, additional
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- 2003
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33. Variation in the dispersal potential of non-feeding invertebrate larvae: the desperate larva hypothesis and larval size
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Marshall, DJ, primary and Keough, MJ, additional
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- 2003
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34. Effects of settler size and density on early post-settlement survival of Ciona intestinalis in the field
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Marshall, DJ, primary and Keough, MJ, additional
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- 2003
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35. Larval activity levels and delayed metamorphosis affect post-larval performance in the colonial ascidian Diplosoma listerianum
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Marshall, DJ, primary, Pechenik, JA, additional, and Keough, MJ, additional
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- 2003
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36. In situ measures of spawning synchrony and fertilization success in an intertidal, free-spawning invertebrate
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Marshall, DJ, primary
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- 2002
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37. Intraspecific co-variation between egg and body size affects fertilisation kinetics of free-spawning marine invertebrates
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Marshall, DJ, primary, Styan, CA, additional, and Keough, MJ, additional
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- 2000
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38. Severe disease following experimental exposure of calves to noncytopathic bovine viral diarrhoea virus isolate New York-1
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MARSHALL, DJ, primary, MOXLEY, RA, additional, and KELLING, CL, additional
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- 1998
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39. Protection against ovine footrot using a topical preparation of zinc sulphate
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MARSHALL, DJ, primary, WALKER, RI, additional, and COVENY, RE, additional
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- 1991
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40. The effect of footrot on body weight and wool growth of sheep
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MARSHALL, DJ, primary, WALKER, RI, additional, CULLIS, BR, additional, and LUFF, MF, additional
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- 1991
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41. Measuring the social competence of preschool children with specific language impairment: correspondence among informant ratings and behavioral observations.
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McCabe PC and Marshall DJ
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The correspondence between direct observation and informant ratings of preschool children with specific language impairment (SLI) was investigated. Preschoolers with and without SLI were observed during free play using the Social Interactive Coding System (SICS; Rice, Sell, & Hadley, 1990). In addition, teachers and parents completed the Social Competence Behavior Evaluation Scale (La Freniere & Dumas, 1995), Teacher-Child Rating Scale (Perkins & Hightower, 2002), and Parent-Child Rating Scale (Primary Mental Health Project, 1999). SICS observations were compared with the results of each rating scale. Results indicated low to moderate correlations between the SICS and teacher ratings and between the SICS and the parent ratings. Differences between children with and without SLI were observed, including differences in communication style and preferred audience (adults versus peers), responsiveness to social initiations, and play style. Problems of task orientation, peer social skills, assertiveness, isolation, and behavioral control were also noted. A multimethod, multisource assessment was recommended. [ABSTRACT FROM AUTHOR]
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- 2006
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42. An anamnestic serological test for ovine footrot
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WHITTINGTON, RJ, primary and MARSHALL, DJ, additional
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- 1990
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43. Serum antibody responses in sheep after natural infection with Bacteroides nodosus.
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Whittington, RJ, Marshall, DJ, Walker, RI, and Turner, MJ
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- 1990
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44. A positive association between resistance to ovine footrot and particular lymphocyte antigen types.
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OUTTERIDGE, PM, STEWART, DJ, SKERMAN, TM, DUFTY, JH, EGERTON, JR, FERRIER, G., and MARSHALL, DJ
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- 1989
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45. Gaia Release Dataa 2 Summary of the contents and survey properties
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Brown, AGA, Vallenari, A, Prusti, T, de Bruijne, JHJ, Babusiaux, C, Bailer-Jones, CAL, Biermann, M, Evans, DW, Eyer, L, Jansen, F, Jordi, C, Klioner, SA, Lammers, U, Lindegren, L, Luri, X, Mignard, F, Panem, C, Pourbaix, D, Randich, S, Sartoretti, P, Siddiqui, HI, Soubiran, C, van Leeuwen, F, Walton, NA, Arenou, F, Bastian, U, Cropper, M, Drimmel, R, Katz, D, Lattanzi, MG, Bakker, J, Cacciari, C, Castaneda, J, Chaoul, L, Cheek, N, De Angeli, F, Fabricius, C, Guerra, R, Holl, B, Masana, E, Messineo, R, Mowlavi, N, Nienartowicz, K, Panuzzo, P, Portell, J, Riello, M, Seabroke, GM, Tanga, P, Thevenin, F, Gracia-Abril, G, Comoretto, G, Garcia-Reinaldos, M, Teyssier, D, Altmann, M, Andrae, R, Audard, M, Bellas-Velidis, I, Benson, K, Berthier, J, Blomme, R, Burgess, P, Busso, G, Carry, B, Cellino, A, Clementini, G, Clotet, M, Creevey, O, Davidson, M, De Ridder, J, Delchambre, L, Dell'Oro, A, Ducourant, C, Fernandez-Hernandez, J, Fouesneau, M, Fremat, Y, Galluccio, L, Garcia-Torres, M, Gonzalez-Nunez, J, Gonzalez-Vidal, JJ, Gosset, E, Guy, LP, Halbwachs, J-L, Hambly, NC, Harrison, DL, Hernandez, J, Hestroffer, D, Hodgkin, ST, Hutton, A, Jasniewicz, G, Jean-Antoine-Piccolo, A, Jordan, S, Korn, AJ, Krone-Martins, A, Lanzafame, AC, Lebzelter, T, Loeffler, W, Manteiga, M, Marrese, PM, Martin-Fleitas, JM, Moitinho, A, Mora, A, Muinonen, K, Osinde, J, Pancino, E, Pauwels, T, Petit, J-M, Recio-Blanco, A, Richards, PJ, Rimoldini, L, Robin, AC, Sarro, LM, Siopis, C, Smith, M, Sozzetti, A, Sueveges, M, Torra, J, van Reeven, W, Abbas, U, Aramburu, AA, Accart, S, Aerts, C, Altavilla, G, Alvarez, MA, Alvarez, R, Alves, J, Anderson, RI, Andrei, AH, Anglada Varela, E, Antiche, E, Antoja, T, Arcay, B, Astraatmadja, TL, Bach, N, Baker, SG, Balaguer-Nunez, L, Balm, P, Barache, C, Barata, C, Barbato, D, Barblan, F, Barklem, PS, Barrado, D, Barros, M, Barstow, MA, Bartholome Munoz, S, Bassilana, J-L, Becciani, U, Bellazzini, M, Berihuete, A, Bertone, S, Bianchi, L, Bienayme, O, Blanco-Cuaresma, S, Boch, T, Boeche, C, Bombrun, A, Borrachero, R, Bossini, D, Bouquillon, S, Bourda, G, Bragaglia, A, Bramante, L, Breddels, MA, Bressan, A, Brouillet, N, Bruesemeister, T, Brugaletta, E, Bucciarelli, B, Burlacu, A, Busonero, D, Butkevich, AG, Buzzi, R, Caffau, E, Cancelliere, R, Cannizzaro, G, Cantat-Gaudin, T, Carballo, R, Carlucci, T, Carrasco, JM, Casamiquela, L, Castellani, M, Castro-Ginard, A, Charlot, P, Chemin, L, Chiavassa, A, Cocozza, G, Costigan, G, Cowell, S, Crifo, F, Crosta, M, Crowley, C, Cuypers, J, Dafonte, C, Damerdji, Y, Dapergolas, A, David, P, David, M, de Laverny, P, De Luise, F, De March, R, de Martino, D, de Souza, R, de Torres, A, Debosscher, J, del Pozo, E, Delbo, M, Delgado, A, Delgado, HE, Di Matteo, P, Diakite, S, Diener, C, Distefano, E, Dolding, C, Drazinos, P, Duran, J, Edvardsson, B, Enke, H, Eriksson, K, Esquej, P, Eynard Bontemps, G, Fabre, C, Fabrizio, M, Faigler, S, Falcao, AJ, Farras Casas, M, Federici, L, Fedorets, G, Fernique, P, Figueras, F, Filippi, F, Findeisen, K, Fonti, A, Fraile, E, Fraser, M, Frezouls, B, Gai, M, Galleti, S, Garabato, D, Garcia-Sedano, F, Garofalo, A, Garralda, N, Gavel, A, Gavras, P, Gerssen, J, Geyer, R, Giacobbe, P, Gilmore, G, Girona, S, Giuffrida, G, Glass, F, Gomes, M, Granvik, M, Gueguen, A, Guerrier, A, Guiraud, J, Gutierrez-Sanchez, R, Haigron, R, Hatzidimitriou, D, Hauser, M, Haywood, M, Heiter, U, Helmi, A, Heu, J, Hilger, T, Hobbs, D, Hofmann, W, Holland, G, Huckle, HE, Hypki, A, Icardi, V, Janssen, K, Jevardat de Fombelle, G, Jonker, PG, Juhasz, AL, Julbe, F, Karampelas, A, Kewley, A, Klar, J, Kochoska, A, Kohley, R, Kolenberg, K, Kontizas, M, Kontizas, E, Koposov, SE, Kordopatis, G, Kostrzewa-Rutkowska, Z, Koubsky, P, Lambert, S, Lanza, AF, Lasne, Y, Lavigne, J-B, Le Fustec, Y, Le Poncin-Lafitte, C, Lebreton, Y, Leccia, S, Leclerc, N, Lecoeur-Taibi, I, Lenhardt, H, Leroux, F, Liao, S, Licata, E, Lindstrom, HEP, Lister, TA, Livanou, E, Lobel, A, Lopez, M, Managau, S, Mann, RG, Mantelet, G, Marchal, O, Marchant, JM, Marconi, M, Marinoni, S, Marschalko, G, Marshall, DJ, Martino, M, Marton, G, Mary, N, Massari, D, Matijevic, G, Mazeh, T, McMillan, PJ, Messina, S, Michalik, D, Millar, NR, Molina, D, Molinaro, R, Molnar, L, Montegriffo, P, Mor, R, Morbidelli, R, Morel, T, Morris, D, Mulone, AF, Muraveva, T, Musella, I, Nelemans, G, Nicastro, L, Noval, L, O'Mullane, W, Ordenovic, C, Ordonez-Blanco, D, Osborne, P, Pagani, C, Pagano, I, Pailler, F, Palacin, H, Palaversa, L, Panahi, A, Pawlak, M, Piersimoni, AM, Pineau, F-X, Plachy, E, Plum, G, Poggio, E, Poujoulet, E, Prsa, A, Pulone, L, Racero, E, Ragaini, S, Rambaux, N, Ramos-Lerate, M, Regibo, S, Reyle, C, Riclet, F, Ripepi, V, Riva, A, Rivard, A, Rixon, G, Roegiers, T, Roelens, M, Romero-Gomez, M, Rowell, N, Royer, F, Ruiz-Dern, L, Sadowski, G, Sagrista Selles, T, Sahlmann, J, Salgado, J, Salguero, E, Sanna, N, Santana-Ros, T, Sarasso, M, Savietto, H, Schultheis, M, Sciacca, E, Segol, M, Segovia, JC, Segransan, D, Shih, I-C, Siltala, L, Silva, AF, Smart, RL, Smith, KW, Solano, E, Solitro, F, Sordo, R, Soria Nieto, S, Souchay, J, Spagna, A, Spoto, F, Stampa, U, Steele, IA, Steidelmueller, H, Stephenson, CA, Stoev, H, Suess, FF, Surdej, J, Szabados, L, Szegedi-Elek, E, Tapiador, D, Taris, F, Tauran, G, Taylor, MB, Teixeira, R, Terrett, D, Teyssandier, P, Thuillot, W, Titarenko, A, Torra Clotet, F, Turon, C, Ulla, A, Utrilla, E, Uzzi, S, Vaillant, M, Valentini, G, Valette, V, van Elteren, A, Van Hemelryck, E, van Leeuwen, M, Vaschetto, M, Vecchiato, A, Veljanoski, J, Viala, Y, Vicente, D, Vogt, S, von Essen, C, Voss, H, Votruba, V, Voutsinas, S, Walmsley, G, Weiler, M, Wertz, O, Wevers, T, Wyrzykowski, L, Yoldas, A, Zerjal, M, Ziaeepour, H, Zorec, J, Zschocke, S, Zucker, S, Zurbach, C, and Zwitter, T
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QC ,QB - Abstract
Context. We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources brighter than magnitude 21. In addition epoch astrometry and photometry are provided for a modest sample of minor planets in the solar system.\ud \ud Aims. A summary of the contents of Gaia DR2 is presented, accompanied by a discussion on the differences with respect to Gaia DR1 and an overview of the main limitations which are still present in the survey. Recommendations are made on the responsible use of Gaia DR2 results.\ud \ud Methods. The raw data collected with the Gaia instruments during the first 22 months of the mission have been processed by the Gaia Data Processing and Analysis Consortium (DPAC) and turned into this second data release, which represents a major advance with respect to Gaia DR1 in terms of completeness, performance, and richness of the data products. Results. Gaia DR2 contains celestial positions and the apparent brightness in G for approximately 1.7 billion sources. For 1.3 billion of those sources, parallaxes and proper motions are in addition available. The sample of sources for which variability information is provided is expanded to 0.5 million stars. This data release contains four new elements: broad-band colour information in the form of the apparent brightness in the GBP (330–680 nm) and GRP (630–1050 nm) bands is available for 1.4 billion sources; median radial velocities for some 7 million sources are presented; for between 77 and 161 million sources estimates are provided of the stellar effective temperature, extinction, reddening, and radius and luminosity; and for a pre-selected list of 14 000 minor planets in the solar system epoch astrometry and photometry are presented. Finally, Gaia DR2 also represents a new materialisation of the celestial reference frame in the optical, the Gaia-CRF2, which is the first optical reference frame based solely on extragalactic sources. There are notable changes in the photometric system and the catalogue source list with respect to Gaia DR1, and we stress the need to consider the two data releases as independent. Conclusions. Gaia DR2 represents a major achievement for the Gaia mission, delivering on the long standing promise to provide parallaxes and proper motions for over 1 billion stars, and representing a first step in the availability of complementary radial velocity and source astrophysical information for a sample of stars in the Gaia survey which covers a very substantial fraction of the volume of our galaxy.
46. The National Evaluation of The Royal British Legion (TRBL) Breaks Services 2017-2018 (Executive Summary)
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Barrett, GA, Murray, ET, and Marshall, DJ
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HS ,HV ,RA
47. Rethinking the spaces of civil society
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Jeffrey, A, Staeheli, L, and Marshall, DJ
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4408 Political Science ,16. Peace & justice ,44 Human Society - Abstract
Despite its popularity, civil society remains a troubling concept for many. It has been variously critiqued for masking the operation of power, for universalising a situated normative order, and for homogenising the diversity of bodies, things and affects that comprise political and social lives. In this special issue we seek to probe these debates through a specific engagement with the concept of ‘civility’. As populist and right-wing political movements gain in strength and prominence across the globe, it seems a suitable moment to consider the role of civility in both political contestation and everyday lives, while reflecting on what the implications for concepts in political geography. In this introduction we outline these debates while introducing the specific contribution of each of the papers.
48. The National Evaluation of The Royal British Legion (TRBL) Breaks Services 2017-2018
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Barrett, GA, Murray, ET, and Marshall, DJ
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HS ,HV ,RA
49. Simultaneous Quantification of Serum Symmetric Dimethylarginine, Asymmetric Dimethylarginine and Creatinine for Use in a Routine Clinical Laboratory.
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Marshall DJ, Hawley JM, and Keevil BG
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Background Symmetric dimethylarginine (SDMA) and asymmetric dimethylarginine (ADMA) are naturally occurring amino acids classed as uremic toxins by the EUTOX working group. SDMA is principally excreted through the kidneys and is a well-known renal function marker, ADMA is a potent inhibitor of nitric oxide production. Here, we describe the development of a rapid and sensitive liquid chromatography tandem mass spectrometry method for simultaneous measurement of SDMA, ADMA and creatinine. Method Serum samples were prepared by protein precipitation and dilution with acetonitrile prior to injection onto a Waters TQS-Micro. Multiple reaction monitoring was used to detect SDMA, ADMA, creatinine, and their corresponding internal standard transitions after separation with a HILIC analytical column. Sample stability and intra-individual variation studies were also assessed following ethical approval. Results The retention time for creatinine was 0.43, SDMA 1.10 and ADMA 1.14 minutes. Mean recovery for creatinine was 103%, SDMA was 100% and ADMA was 103%, matrix effects were minimal (<6%). Lower limit of quantitation for creatinine and SDMA/ADMA was 17.5 µmol/L and 0.1 µmol/L respectively. Analytical imprecision showed a coefficient of variation <10% for all analytes across the working range of the assays. Intra-individual variation for creatinine was 4.7%, SDMA 7.5% and ADMA 7.6%. Discussion We have developed a rapid assay for LC-MS/MS measurement of SDMA, ADMA and creatinine in a routine clinical laboratory. It is simple, reproducible, and easy to perform. The stability of SDMA and ADMA pre- and post-centrifugation allows for their routine use without any special sample handling requirements.
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- 2024
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50. Larval crowding enhances dengue virus loads in Aedes aegypti, a relationship that might increase transmission in urban environments.
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Dutra HLC, Marshall DJ, Comerford B, McNulty BP, Diaz AM, Jones MJ, Mejia AJ, Bjornstad ON, and McGraw EA
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- Animals, Temperature, Female, Crowding, Humans, Aedes virology, Aedes physiology, Dengue Virus physiology, Larva virology, Viral Load, Dengue transmission, Dengue virology, Mosquito Vectors virology, Mosquito Vectors physiology, Mosquito Vectors growth & development
- Abstract
Background: Climate change and urbanization will alter the global distribution of disease vectors, changing the disease burden in yet unpredictable ways. Aedes aegypti is a mosquito responsible for transmitting dengue, Zika, chikungunya, and yellow fever viruses that breeds in containers associated with urban environments. We sought to understand how ambient temperature and larval densities in the immature aquatic phases determine adult life history traits and dengue virus loads post-infection. We predicted that larval crowding and high temperatures would both lead to smaller mosquitoes that might struggle to invest in an immune response and, hence, would exhibit high viral loads., Methods: We first examined larval densities from urban and rural areas via a meta-analysis. We then used these data to inform a laboratory-based 2x2 design examining the interacting effects of temperature (21 vs. 26°C) and density (0.2 vs. 0.4 larvae/mL) on adult life history and dengue virus loads., Results: We found that urban areas had an ~8-fold increase in larval densities compared to more rural sites. In the lab, we found that crowding had more impact on mosquito traits than temperature. Crowding led to slower development, smaller mosquitoes, less survival, lower fecundity, and higher viral loads, as predicted. The higher temperature led to faster development, reduced fecundity, and lower viral loads. The virus-reducing effect of higher temperature rearing was, however, overwhelmed by the impact of larval crowding when both factors were present., Conclusions: These data reveal complex interactions between the environmental effects experienced by immature mosquitoes and adult traits. They especially highlight the importance of crowding with respect to adult viral loads. Together, these data suggest that urban environments might enhance dengue virus loads and, therefore, possibly transmission, a concerning result given the increasing rates of urbanization globally., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Dutra et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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