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505 results on '"MacDougall M"'

1. TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf

Author

Mallorquín, M., Goffo, E., Pallé, E., Lodieu, N., Béjar, V. J. S., Isaacson, H., Osorio, M. R. Zapatero, Dreizler, S., Stock, S., Luque, R., Murgas, F., Peña, L., Sanz-Forcada, J., Morello, G., Ciardi, D. R., Furlan, E., Collins, K. A., Herrero, E., Vanaverbeke, S., Plavchan, P., Narita, N., Schweitzer, A., Pérez-Torres, M., Quirrenbach, A., Kemmer, J., Hatzes, A. P., Howard, A., Schlecker, M., Reffert, S., Nagel, E., Morales, J. C., Orell-Miquel, J., Duque-Arribas, C., Carleo, I., Cifuentes, C., Nowak, G., Ribas, I., Reiners, A., Amado, P. J., Caballero, J. A., Henning, Th., Pinter, V., Murphy, J. M. Akana, Beard, C., Blunt, S., Brinkman, C. L., Cale, B., Chontos, A., Collins, K. I., Crossfield, I. J. M., Dai, F., Dalba, P. A., Dufoer, S., Mufti, M. El, Espinoza, N., Fetherolf, T., Fukui, A., Giacalone, S., Gnilka, C., Gonzales, E., Grunblatt, S. K., Howell, S., Huber, D., Kane, S. R., de León, J. P., Lubin, J., MacDougall, M. G., Massey, B., Montes, D., Mori, M., Parviainen, H., Passegger, V. M., Polanski, A. S., Robertson, P., Schwarz, R. P., Srdoc, G., Tabernero, H. M., Tanner, A., Turtelboom, E., Van Zandt, J., Weiss, L., and Zechmeister, M.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49, and the alert that this was a TESS planet candidate with a period of 21.3 days went out in April 2020. However, ground-based follow-up observations, including seeing-limited photometry in and outside transit together with precise radial velocity (RV) measurements with CARMENES and HIRES revealed that the true period of the planet is 10.6 days. These observations also allowed us to retrieve a mass of 5.74 $\pm$ 1.46 $M_\oplus$, which together with a radius of 2.08 $\pm$ 0.12 $R_\oplus$, means that TOI-1801 b is most probably composed of water and rock, with an upper limit of 2\% by mass of H$_{2}$ in its atmosphere. The stellar rotation period of 16 days is readily detectable in our RV time series and in the ground-based photometry. We derived a likely age of 600--800 Myr for the parent star TOI-1801, which means that TOI-1801 b is the least massive young mini-Neptune with precise mass and radius determinations. Our results suggest that if TOI-1801 b had a larger atmosphere in the past, it must have been removed by some evolutionary mechanism on timescales shorter than 1 Gyr., Comment: Accepted in A&A. 29 pages, 21 figures

Published
2023
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2. A search for technosignatures around 31 sun-like stars with the green bank telescope at 1.15-1.73 GHz

Author

Margot, JL, Pinchuk, P, Geil, R, Alexander, S, Arora, S, Biswas, S, Cebreros, J, Desai, SP, Duclos, B, Dunne, R, Fu, KKL, Goel, S, Gonzales, J, Gonzalez, A, Jain, R, Lam, A, Lewis, B, Lewis, R, Li, G, MacDougall, M, Makarem, C, Manan, I, Molina, E, Nagib, C, Neville, K, O'Toole, C, Rockwell, V, Rokushima, Y, Romanek, G, Schmidgall, C, Seth, S, Shah, R, Shimane, Y, Singhal, M, Tokadjian, A, Villafana, L, Wang, Z, Yun, I, Zhu, L, and Lynch, RS

Subjects
astro-ph.EP, astro-ph.IM, Astronomical and Space Sciences, Astronomy & Astrophysics
Abstract

We conducted a search for technosignatures in 2018 and 2019 April with the L-band receiver (1.15-1.73 GHz) of the 100 m diameter Green Bank Telescope. These observations focused on regions surrounding 31 Sun-like stars near the plane of the Galaxy. We present the results of our search for narrowband signals in this data set, as well as improvements to our data processing pipeline. Specifically, we applied an improved candidate signal detection procedure that relies on the topographic prominence of the signal power, which nearly doubles the signal detection count of some previously analyzed data sets. We also improved the direction-of-origin filters that remove most radio frequency interference (RFI) to ensure that they uniquely link signals observed in separate scans. We performed a preliminary signal injection and recovery analysis to test the performance of our pipeline. We found that our pipeline recovers 93% of the injected signals over the usable frequency range of the receiver and 98% if we exclude regions with dense RFI. In this analysis, 99.73% of the recovered signals were correctly classified as technosignature candidates. Our improved data processing pipeline classified over 99.84% of the ∼26 million signals detected in our data as RFI. Of the remaining candidates, 4539 were detected outside of known RFI frequency regions. The remaining candidates were visually inspected and verified to be of anthropogenic nature. Our search compares favorably to other recent searches in terms of end-to-end sensitivity, frequency drift rate coverage, and signal detection count per unit bandwidth per unit integration time.

Published
2021

14. sj-pdf-1-jct-10.1177_23800844211041911 – Supplemental material for Impact of Periodontal Disease on the Quality of Life of Older People in Indonesia: A Qualitative Study

Author

Hijryana, M., MacDougall, M., Ariani, N., Kusdhany, L.S., and Walls, A.W.G.

Subjects
110599 Dentistry not elsewhere classified, FOS: Clinical medicine
Abstract

Supplemental material, sj-pdf-1-jct-10.1177_23800844211041911 for Impact of Periodontal Disease on the Quality of Life of Older People in Indonesia: A Qualitative Study by M. Hijryana, M. MacDougall, N. Ariani, L.S. Kusdhany and A.W.G. Walls in JDR Clinical & Translational Research

Published
2021
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15. sj-docx-1-jct-10.1177_23800844211021391 – Supplemental material for Periodontal Disease and Oral Health–Related Quality of Life in the Older Population in Indonesia

Author

Hijryana, M., MacDougall, M., Ariani, N., Saksono, P., Kusdhany, L.S., and Walls, A.W.G.

Subjects
110599 Dentistry not elsewhere classified, FOS: Clinical medicine
Abstract

Supplemental material, sj-docx-1-jct-10.1177_23800844211021391 for Periodontal Disease and Oral Health–Related Quality of Life in the Older Population in Indonesia by M. Hijryana, M. MacDougall, N. Ariani, P. Saksono, L.S. Kusdhany and A.W.G. Walls in JDR Clinical & Translational Research

Published
2021
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25. Third Dentition Is the Main Cause of Premolar Supernumerary Tooth Formation

Author

Kiso, H., primary, Takahashi, K., additional, Mishima, S., additional, Murashima-Suginami, A., additional, Kakeno, A., additional, Yamazaki, T., additional, Asai, K., additional, Tokita, Y., additional, Uozumi, R., additional, Sugai, M., additional, Harada, H., additional, Huang, B., additional, MacDougall, M., additional, and Bessho, K., additional

Published
2019
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30. LETTERS.

Author

GALLAHER, MIRIAM, HARRISON, MSRY LESLIE, SUNDERLAND, JUNE, SUNDERLAND, FRANK, HUNLEY, ANNETT, TOMB, EVVA S., GEORGION, M., CLOUD, KENNETH, MARSON, MOLLIE, EBERHARDT, ANDREW, WRIGHT, JANET S., KING, STELLA HOHNSON, KAUFFMANN-GRINSTEAD, K., MCELRATH, MIKE, SANDS, R., MACDOUGALL, M., CUNDY, ANNA, and DOLLERY, JEANNE

Subjects
PRESIDENTIAL candidates, PRESIDENTIAL elections
Published
1944

31. Amelogenin exons 8 and 9. In: Amelogenins: Multifaceted Porteins for Dental & Bone Formation & Repair

Author

Li, W., Sire, Jean-Yves, Takano, Y., Macdougall, M., Goldberg, M., Denbesten, P., Systématique, adaptation, évolution (SAE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), M. Goldberg, ed., and Leballeur, Philippe

Subjects
stomatognathic diseases, stomatognathic system, education, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology
Abstract

Amelogenin exons 8 and 9. In: Amelogenins: Multifaceted Porteins for Dental & Bone Formation & Repair

Published
2010

34. Competing roles of TGFbeta and Nma/BAMBI in odontoblasts.

Author

Gonzales CB, Simmons D, Macdougall M, Gonzales, C B, Simmons, D, and MacDougall, M

Abstract

Nma/BAMBI is a novel pseudoreceptor with homology to a TGFbeta type I receptor that lacks a serine/threonine kinase domain. Nma/BAMBI functions as a dominant-negative protein that regulates reciprocal epithelial-mesenchymal interactions during organogenesis. Therefore, we hypothesized that Nma/BAMBI regulates TGFbeta signaling and downstream gene expression during dentinogenesis. To test this hypothesis, we examined the downstream gene expression profiles of major dentin extracellular matrix proteins in response to Nma/BAMBI, and we examined the roles of Nma/BAMBI and TGFbeta-1 during dentinogenesis. Overexpression of Nma/BAMBI in the mouse odontoblast-like cell line MD10-A2 down-regulated expression of DSPP by 66% and up-regulated expression of DMP1 four-fold. TGFbeta treatment reversed Nma/BAMBI's negative effect on DSPP expression. Furthermore, we demonstrated that TGFbeta negatively regulates Nma/BAMBI's expression levels in MD10-A2 odontoblast-like cells. Analysis of these data, together, indicates that TGFbeta and Nma/BAMBI are inversely regulated and that the sequence of expression determines the net effect on downstream gene expression. [ABSTRACT FROM AUTHOR]

Published
2010
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47. Runx2, Osx, andDsppin Tooth Development

Author

Chen, S., primary, Gluhak-Heinrich, J., additional, Wang, Y.H., additional, Wu, Y.M., additional, Chuang, H. H., additional, Chen, L., additional, Yuan, G.H, additional, Dong, J., additional, Gay, I., additional, and MacDougall, M., additional

Published
2009
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49. Resuscitation fluid use in critically ill adults: an international cross sectional study in 391 intensive care units

Author

Finfer, S, Liu, B, Taylor, C, Bellomo, R, Billot, L, Cook, D, Du, B, Mcarthur, C, Myburgh, J, Jacobs, S, Gazzard, R, Edington, J, Ghelani, D, Blythe, D, Richards, B, Mccalman, C, Parr, M, Walker, C, Seppelt, I, Cole, L, Stevens, D, Cade, J, Webb, S, Woolfe, C, van Heerden PV, Cooper, J, Mitchell, I, Peake, S, French, C, Playford, H, Bannerjee, A, Berwanger, O, da Silva, N, Mario Teles, J, Guimarães, H, Rocha, M, Piras, C, Mcintyre, L, Bagshaw, Sm, Stelfox, T, Green, R, Hall, R, Son, W, Meade, M, Kumar, A, Wittman, R, Martin, C, Leblanc, M, Lim, S, Keenan, S, Magder, S, Chittock, D, Wang, W, Dong, J, Chen, X, Li, A, Zhuang, H, Liu, W, Liu, Y, He, Q, Wang, J, Zhou, N, Bai, Y, Wang, L, Lu, F, Chen, W, Wang, S, Zhou, J, Zhang, Z, Xu, Y, Li, T, Sun, X, Wang, B, Zhao, C, Song, Q, Pan, L, Ma, P, Li, Q, Li, G, Chen, D, Liu, L, Gao, K, Han, S, Wan, X, Zhang, Y, Chao, Y, Xi, X, Jiang, L, Han, C, Qin, T, Jiang, W, Li, Y, Liu, X, Hu, Z, Ding, Y, Li, W, Wang, X, Weng, L, Wang, D, Li, S, An, Y, Zhang, W, Luo, H, Luo, Y, Zhu, X, Li, H, Li, C, Qu, H, Mao, E, Min, D, Wang, C, Zhang, J, Ren, H, Liu, H, Wang, M, Zhao, M, Fei, D, Qian, C, Liu, R, Shi, B, Guo, H, Guan, X, Wu, J, Zhou, L, Yu, K, Wang, H, Wang, Y, Li, D, Huang, Q, Su, M, Dong, C, Zhang, X, Wu, B, Qin, Y, Zhang, N, Kang, Y, Deng, Y, Ai, Y, Guo, Y, Cui, Q, Jia, J, Chen, H, Yan, J, Xu, Q, Sun, R, Hong, J, Fang, Q, Zheng, X, Qiu, H, Liu, S, Zhou, Q, Li, J, Schonemann, N, Bendtsen, A, Thornberg, K, Boensen, H, Tousi, H, Bestle, M, Pawlowicz, M, Høen Beck, D, Carl, P, Ronholm, E, Welling, K, Strelitz, J, Kancir, C, Hostrup, A, Perner, A, Jensen, R, Westergard Nielsen, J, Bennett, S, Ball, A, Becker, H, Desikan, S, Watson, N, Watson, D, Smith, I, Wright, M, Millo, J, Morris, J, Williams, A, Peebles Brown, A, Grainger, K, Marsh, R, Christmas, D, Harling, D, Boulanger, C, Davenport, A, Goldsmith, A, Cook, B, Drage, S, Goodall, J, Higgins, D, Price, J, Margarson, M, Sherry, T, Mcauley, F, Syndercombe, A, Jones, G, Reid, J, Andrivet, P, Jamali, S, Rigaud, J, Gaffine, A, Kerkeni, Mejean, C, Drault, J, Beuret, P, Bourffandeau, B, Gasselin, J, de Jonghe, B, Mercat, A, Quenot, J, Broux, C, Timsit, J, Mokhtar, H, Jacobs, F, Pease, S, Mourvillier, B, Lasocki, S, Clabault, K, Rahmani, H, Cariou, A, Guerin, C, Combes, A, Duguet, A, Thuong, M, Janvier, G, Schortgen, F, Icahai, C, Megarbane, B, Payen, D, Leon, R, Gruson, D, Guidet, B, Tardu, D, Roch, A, Ridel, C, Fartoukh, M, Mentec, H, Guitton, C, Blot, F, Oppert, M, Spies, C, Gründling, M, Friesecke, S, Meier, A, Martin, J, Jaschinski, U, Gärtner, R, Weyland, W, Wappler, F, Bromber, H, Welte, T, Hadem, J, Fiedler, F, Peckelsen, C, Fritz, H, Rensing, H, Ragaller, M, Reinhart, K, Brunkhorst, Fm, Riessen, R, Gerlach, H, Hoffmann, U, Chow, Fl, Cheng, C, Joynt, G, Buckley, T, Auyeung, Kw, Young, K, Ching, Ck, Sigurdsson, S, Sigvaldason, K, Hreinsson, K, Kapadia, F, Donnelly, M, Bailie, R, Breen, D, Bates, J, Marsh, B, Motherway, C, Mcauley, D, Trinder, J, Manzoni, A, Mottura, G, Bonaccorso, G, Luzzani, A, De Blasio, E, Bonanno, R, Cardarelli, N, De Cristofaro, M, Mazzola, E, Monfregola, M, Isetta, M, Franchi, F, Trisolino, F, Marchetti, G, Piga, G, Todesco, L, Perno, S, Bianchin, A, Blasetti, A, Rossi, S, Salcuni, R, Greco, M, Beck, E, Antonini, B, Malacarne, P, Prandi, E, Negro, G, Cubeddu, G, Pasquinucci, G, Ferrari, E, Rotelli, S, Savioli, M, Mediani, T, Tognoli, E, Ribola, A, Laperchia, L, Meinardi, S, Cancellieri, F, Mancosu, S, Segala, V, Gamberini, E, Garofalo, G, Dentini, N, Carnevale, L, Bilotta, F, Brunod, F, Casagrande, L, Riva, I, Osti, D, Sitta, V, Alleva, S, Becattini, G, Munaron, S, Cavallo, R, Marzullo, A, Ferrari, F, Calicchio, G, Sucre, M, Quattrocchi, L, Breschi, C, Gratarola, A, Sciacca, P, Postiglione, M, Barattini, M, Rossi, M, Falcelli, C, Coaloa, M, Cattin, S, Palmese, S, David, Antonio, Calabrese, P, Dote, K, Ohashi, I, Morimatsu, H, Goto, Y, Hagioka, S, Mcguiness, S, Gibson, A, Henderson, S, Freebairn, R, Williams, T, Liang, J, Van Haren, F, Dinsdale, D, Serra, I, Arabi, Y, Qushmaq, I, Abouchala, N, Kherallah, M, Mandourah, Y, Cuthbertson, B, Willis, P, Cole, S, Macdougall, M, Andrews, P, Alcorn, D, Carins, C, Digby, B, Tan, Ck, Lee, P, Chan, Y, Petersen, P, Albert, J, Guldbrand, P, Juhlin Dannfeldt, M, Nielsen, N, Hjelmqvist, H, Nordlund, P, Berkius, J, Oldner, A, Konrad, D, Zatterman, R, Metcalf, K, Friberg, H, Chew, M, Lindgren, K, Aneman, A, Gatz, R, Blomqvist, H, Wizelius, I, Andersson, M, Rodling Wahlstrom, M, Stiernstrom, H, Lindgren, P, Elvstad, T, Hyddmark, U, Merz, T, Laube, M, Haberthuer, C, Jaeggi, M, Maggiorini, M, Stover, J, Ahmed, R, Kellum, J, Murugan, R, Salmon, A, Vlahakis, N, Cohn, S, and Chung, K.

Subjects
Adult, Male, endocrine system, medicine.medical_specialty, Resuscitation, Internationality, Cross-sectional study, Critical Illness, Critical Care and Intensive Care Medicine, complex mixtures, Resuscitation fluid, Intensive care, medicine, Humans, Colloids, Medical prescription, Intensive care medicine, Generalized estimating equation, Aged, critically ill adults, business.industry, Research, digestive, oral, and skin physiology, Odds ratio, Middle Aged, Confidence interval, body regions, Intensive Care Units, Cross-Sectional Studies, intensive care units, Emergency medicine, Commentary, Fluid Therapy, Female, business, Perfusion
Abstract

Introduction Recent evidence suggests that choice of fluid used for resuscitation may influence mortality in critically ill patients. Methods We conducted a cross-sectional study in 391 intensive care units across 25 countries to describe the types of fluids administered during resuscitation episodes. We used generalized estimating equations to examine the association between patient, prescriber and geographic factors and the type of fluid administered (classified as crystalloid, colloid or blood products). Results During the 24-hour study period, 1,955 of 5,274 (37.1%) patients received resuscitation fluid during 4,488 resuscitation episodes. The main indications for administering crystalloid or colloid were impaired perfusion (1,526/3,419 (44.6%) of episodes), or to correct abnormal vital signs (1,189/3,419 (34.8%)). Overall, colloid was administered to more patients (1,234 (23.4%) versus 782 (14.8%)) and during more episodes (2,173 (48.4%) versus 1,468 (32.7%)) than crystalloid. After adjusting for patient and prescriber characteristics, practice varied significantly between countries with country being a strong independent determinant of the type of fluid prescribed. Compared to Canada where crystalloid, colloid and blood products were administered in 35.5%, 40.6% and 28.3% of resuscitation episodes respectively, odds ratios for the prescription of crystalloid in China, Great Britain and New Zealand were 0.46 (95% confidence interval (CI) 0.30 to 0.69), 0.18 (0.10 to 0.32) and 3.43 (1.71 to 6.84) respectively; odds ratios for the prescription of colloid in China, Great Britain and New Zealand were 1.72 (1.20 to 2.47), 4.72 (2.99 to 7.44) and 0.39 (0.21 to 0.74) respectively. In contrast, choice of fluid was not influenced by measures of illness severity (for example, Acute Physiology and Chronic Health Evaluation (APACHE) II score). Conclusions Administration of resuscitation fluid is a common intervention in intensive care units and choice of fluid varies markedly between countries. Although colloid solutions are more expensive and may possibly be harmful in some patients, they were administered to more patients and during more resuscitation episodes than crystalloids were.

Published
2010

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