Search Results - "Murphy, S J"

The lowest detected stellar Fe abundance: the halo star SMSS J160540.18−144323.1 by Nordlander, T, Bessell, M S, Da Costa, G S, Mackey, A D, Asplund, M, Casey, A R, Chiti, A, Ezzeddine, R, Frebel, A, Lind, K, Marino, A F, Murphy, S J, Norris, J E, Schmidt, B P, Yong, D

“…ABSTRACT We report the discovery of SMSS J160540.18−144323.1, a new ultra metal-poor halo star discovered with the SkyMapper telescope. We measure $\left[\rm…”
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The SkyMapper DR1.1 search for extremely metal-poor stars by Da Costa, G S, Bessell, M S, Mackey, A D, Nordlander, T, Asplund, M, Casey, A R, Frebel, A, Lind, K, Marino, A F, Murphy, S J, Norris, J E, Schmidt, B P, Yong, D

“…ABSTRACT We present and discuss the results of a search for extremely metal-poor stars based on photometry from data release DR1.1 of the SkyMapper imaging…”
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High-resolution spectroscopic follow-up of the most metal-poor candidates from SkyMapper DR1.1 by Yong, D, Da Costa, G S, Bessell, M S, Chiti, A, Frebel, A, Gao, X, Lind, K, Mackey, A D, Marino, A F, Murphy, S J, Nordlander, T, Asplund, M, Casey, A R, Kobayashi, C, Norris, J E, Schmidt, B P

“…ABSTRACT We present chemical abundances for 21 elements (from Li to Eu) in 150 metal-poor Galactic stars spanning −4.1 < [Fe/H] < −2.1. The targets were…”
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Spectroscopic survey of Kepler stars. ★ I. HERMES/Mercator observations of A- and F-type stars by Niemczura, E., Murphy, S. J., Smalley, B., Uytterhoeven, K., Pigulski, A., Lehmann, H., Bowman, D. M., Catanzaro, G., van Aarle, E., Bloemen, S., Briquet, M., De Cat, P., Drobek, D., Eyer, L., Gameiro, J. F. S., Gorlova, N., Kamiński, K., Lampens, P., Marcos-Arenal, P., Pápics, P. I., Vandenbussche, B., Van Winckel, H., Stȩślicki, M., Fagas, M.

“…The Kepler space mission provided near-continuous and high-precision photometry of about 207 000 stars, which can be used for asteroseismology. However, for…”
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Relationship between Helicobacter pylori infection and gastric atrophy and the stages of the oesophageal inflammation, metaplasia, adenocarcinoma sequence: results from the FINBAR case-control study by Anderson, L A, Murphy, S J, Johnston, B T, Watson, R G P, Ferguson, H R, Bamford, K B, Ghazy, A, McCarron, P, McGuigan, J, Reynolds, J V, Comber, H, Murray, L J

“…A number of studies have shown an inverse association between infection with Helicobacter pylori and oesophageal adenocarcinoma (OAC). The mechanism of the…”
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Relationship between ‘on-treatment platelet reactivity’, shear stress, and micro-embolic signals in asymptomatic and symptomatic carotid stenosis by Murphy, S. J. X., Lim, S. T., Kinsella, J. A., Tierney, S., Egan, B., Feeley, T. M., Murphy, S. M., Walsh, R. A., Collins, D. R., Coughlan, T., O’Neill, D., Harbison, J. A., Madhavan, P., O’Neill, S. M., Colgan, M. P., Cox, D., Moran, N., Hamilton, G., Meaney, J. F., McCabe, D. J. H.

“…Background Assessment of ‘high on-treatment platelet reactivity (HTPR)’ could enhance understanding of the pathophysiology of first or recurrent vascular…”
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Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-d binary system by Murphy, S. J., Pigulski, A., Kurtz, D. W., Suárez, J. C., Handler, G., Balona, L. A., Smalley, B., Uytterhoeven, K., Szabó, R., Thygesen, A. O., Elkin, V., Breger, M., Grigahcène, A., Guzik, J. A., Nemec, J. M., Southworth, J.

“…The candidate SX Phe star KIC 11754974 shows a remarkably high number of combination frequencies in the Fourier amplitude spectrum: 123 of the 166 frequencies…”
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Isoflurane preconditioning protects neurons from male and female mice against oxygen and glucose deprivation and is modulated by estradiol only in neurons from female mice by Johnsen, D, Murphy, S.J

“…Abstract The volatile anesthetic, isoflurane, can protect the brain if administered before an insult such as an ischemic stroke. However, this protective…”
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ASCL1 and RET expression defines a clinically relevant subgroup of lung adenocarcinoma characterized by neuroendocrine differentiation by Kosari, F, Ida, C M, Aubry, M-C, Yang, L, Kovtun, I V, Klein, J L S, Li, Y, Erdogan, S, Tomaszek, S C, Murphy, S J, Bolette, L C, Kolbert, C P, Yang, P, Wigle, D A, Vasmatzis, G

“…ASCL1 is an important regulatory transcription factor in pulmonary neuroendocrine (NE) cell development, but its value as a biomarker of NE differentiation in…”
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Isoflurane preconditioning neuroprotection in experimental focal stroke is androgen-dependent in male mice by Zhu, W, Wang, L, Zhang, L, Palmateer, J.M, Libal, N.L, Hurn, P.D, Herson, P.S, Murphy, S.J

“…Abstract Isoflurane preconditioning neuroprotection in experimental stroke is male-specific. The role of androgens in the ischemic sensitivity of isoflurane…”
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Mortality in Barrett’s oesophagus: results from a population based study by Anderson, L A, Murray, L J, Murphy, S J, Fitzpatrick, D A, Johnston, B T, Watson, R G P, McCarron, P, Gavin, A T

“…Background: Patients with Barrett’s oesophagus have an increased risk of oesophageal adenocarcinoma but this cancer only accounts for a small proportion of…”
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Poly (ADP-ribose) polymerase-1 initiated neuronal cell death pathway—do androgens matter? by Vagnerova, K, Liu, K, Ardeshiri, A, Cheng, J, Murphy, S.J, Hurn, P.D, Herson, P.S

“…Abstract Activation of poly (ADP-ribose) polymerases (PARP) contributes to ischemic damage by causing neuronal nicotinamide adenine dinucleotide (NAD+ )…”
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Formaldehyde concentrations in household air of asthma patients determined using colorimetric detector tubes by Dannemiller, K. C., Murphy, J. S., Dixon, S. L., Pennell, K. G., Suuberg, E. M., Jacobs, D. E., Sandel, M.

“…Formaldehyde is a colorless, pungent gas commonly found in homes and is a respiratory irritant, sensitizer, carcinogen, and asthma trigger. Typical household…”
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A new asteroseismic diagnostic for internal rotation in γ Doradus stars by Ouazzani, Rhita-Maria, Salmon, S J A J, Antoci, V, Bedding, T R, Murphy, S J, Roxburgh, I W

“…With four years of nearly continuous photometry from Kepler, we are finally in a good position to apply asteroseismology to ... Doradus stars. In particular,…”
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r-Process elements from magnetorotational hypernovae by Yong, D., Kobayashi, C., Da Costa, G. S., Bessell, M. S., Chiti, A., Frebel, A., Lind, K., Mackey, A. D., Nordlander, T., Asplund, M., Casey, A. R., Marino, A. F., Murphy, S. J., Schmidt, B. P.

“…Neutron-star mergers were recently confirmed as sites of rapid-neutron-capture (r-process) nucleosynthesis 1 – 3 . However, in Galactic chemical evolution…”
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Exploring the Galaxy’s halo and very metal-weak thick disc with SkyMapper and Gaia DR2 by Cordoni, G, Da Costa, G S, Yong, D, Mackey, A D, Marino, A F, Monty, S, Nordlander, T, Norris, J E, Asplund, M, Bessell, M S, Casey, A R, Frebel, A, Lind, K, Murphy, S J, Schmidt, B P, Gao, X D, Xylakis-Dornbusch, T, Amarsi, A M, Milone, A P

“…ABSTRACT In this work, we combine spectroscopic information from the SkyMapper survey for Extremely Metal-Poor stars and astrometry from Gaia DR2 to…”
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The first view of δ Scuti and γ Doradus stars with the TESS mission by Antoci, V, Cunha, M S, Bowman, D M, Murphy, S J, Kurtz, D W, Bedding, T R, Borre, C C, Christophe, S, Daszyńska-Daszkiewicz, J, Fox-Machado, L, García Hernández, A, Ghasemi, H, Handberg, R, Hansen, H, Hasanzadeh, A, Houdek, G, Johnston, C, Justesen, A B, Kahraman Alicavus, F, Kotysz, K, Latham, D, Matthews, J M, Mønster, J, Niemczura, E, Paunzen, E, Sánchez Arias, J P, Pigulski, A, Pepper, J, Richey-Yowell, T, Safari, H, Seager, S, Smalley, B, Shutt, T, Sódor, A, Suárez, J-C, Tkachenko, A, Wu, T, Zwintz, K, Barceló Forteza, S, Brunsden, E, Bognár, Z, Buzasi, D L, Chowdhury, S, De Cat, P, Evans, J A, Guo, Z, Guzik, J A, Jevtic, N, Lampens, P, Lares Martiz, M, Lovekin, C, Li, G, Mirouh, G M, Mkrtichian, D, Monteiro, M J P F G, Nemec, J M, Ouazzani, R-M, Pascual-Granado, J, Reese, D R, Rieutord, M, Rodon, J R, Skarka, M, Sowicka, P, Stateva, I, Szabó, R, Weiss, W W

“…ABSTRACT We present the first asteroseismic results for δ Scuti and γ Doradus stars observed in Sectors 1 and 2 of the TESS mission. We utilize the 2-min…”
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The pulsation properties of λ bootis stars I. the southern TESS sample by Murphy, S J, Paunzen, E, Bedding, T R, Walczak, P, Huber, D

“…ABSTRACT We analyse TESS light curves for 70 southern λ Boo stars to identify binaries and to determine which of them pulsate as δ Scuti stars. We find two…”
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A nearby young M dwarf with a wide, possibly planetary-mass companion by Deacon, N. R., Schlieder, J. E., Murphy, S. J.

“…We present the identification of two previously known young objects in the solar neighbourhood as a likely very wide binary. TYC 9486-927-1, an active, rapidly…”
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KIC 5950759: a high-amplitude δ Sct star with amplitude and frequency modulation near the terminal age main sequence by Bowman, D M, Hermans, J, Daszyńska-Daszkiewicz, J, Holdsworth, D L, Tkachenko, A, Murphy, S J, Smalley, B, Kurtz, D W

“…ABSTRACT Among the intermediate mass pulsating stars known as δ Sct stars is a subset of high-amplitude and predominantly radial-mode pulsators known as…”
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