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202. The Giant Magellan Telescope active optics system

Author

McLeod, Brian, additional, Bouchez, Antonin H., additional, Espeland, Brady, additional, Filgueira, José, additional, Johns, Matt, additional, Norton, Timothy J., additional, Ordway, Mark, additional, Podgorski, William A., additional, Roll, John, additional, and Smith, Carey, additional

Published
2014
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205. Homelessness predicts attrition but not alcohol abstinence in outpatients experiencing co-occurring alcohol dependence and serious mental illness

Author

Leickly, Emily, Skalisky, Jordan, Oluwoye, Oladunni, McPherson, Sterling M., Srebnik, Debra, Roll, John M., Ries, Richard K., and McDonell, Michael G.

Abstract

ABSTRACTBackground: Adults experiencing homelessness and serious mental illnesses (SMI) are at an increased risk of poor mental health and treatment outcomes compared with stably housed adults with SMI. The additional issue of alcohol misuse further complicates the difficulties of those living with homelessness and SMI. In this secondary data analysis, the authors investigated the impact of homelessness on attrition and alcohol use in a contingency management (CM) intervention that rewarded alcohol abstinence in outpatients with SMI. Methods: The associations between housing status and attrition and alcohol abstinence during treatment, as assessed by ethyl glucuronide (EtG) urine tests, were evaluated in 79 adults diagnosed with alcohol dependence and SMI. Results: Thirty-nine percent (n= 31) of participants reported being homeless at baseline. Individuals who were homeless were more likely to drop out of CM (n= 10, 62.5%) than those who were housed (n= 4, 16.7%), χ2(1) = 8.86, P< .05. Homelessness was not associated with attrition in the noncontingent control group. Accounting for treatment group and prerandomization EtG levels, neither the effect of housing status nor the interaction of housing status and group were associated with EtG-assessed alcohol abstinence during treatment. Conclusions: Individuals experiencing homelessness and co-occurring alcohol dependence and SMI receiving CM had higher rates of attrition, relative to those who were housed. Homelessness was not associated with differences in biologically assessed alcohol abstinence.

Published
2018
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213. Cognitive function and nigrostriatal markers in abstinent methamphetamine abusers

Author

Department of Radiology, Division of Nuclear Medicine, The University of Michigan, Ann Arbor, MI, USA, ; Molecular and Behavioral Neuroscience Institute, The University of Michigan, Ann Arbor, MI, USA, Department of Radiology, Division of Nuclear Medicine, The University of Michigan, Ann Arbor, MI, USA, Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, USA, ; Substance Abuse Research Division, Department of Psychiatry and Behavioral Neurosciences, Wayne State University, 2761 E. Jefferson Ave., Detroit, MI, 48207, USA, Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, USA, Haight Ashbury Free Clinics, San Francisco, CA, USA, Friends Research Institute, Los Angeles, CA, USA, Department of Psychology, Cambridge University, Cambridge, UK, Ann Arbor, Robbins, Trevor, Schuster, Charles R., Kilbourn, Michael R., Galloway, Gantt P., Roll, John, Lundahl, Leslie H., Keenan, Pamela, Koeppe, Robert A., Johanson, Chris-Ellyn, Frey, Kirk A., Lockhart, Nancy, Department of Radiology, Division of Nuclear Medicine, The University of Michigan, Ann Arbor, MI, USA, ; Molecular and Behavioral Neuroscience Institute, The University of Michigan, Ann Arbor, MI, USA, Department of Radiology, Division of Nuclear Medicine, The University of Michigan, Ann Arbor, MI, USA, Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, USA, ; Substance Abuse Research Division, Department of Psychiatry and Behavioral Neurosciences, Wayne State University, 2761 E. Jefferson Ave., Detroit, MI, 48207, USA, Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, USA, Haight Ashbury Free Clinics, San Francisco, CA, USA, Friends Research Institute, Los Angeles, CA, USA, Department of Psychology, Cambridge University, Cambridge, UK, Ann Arbor, Robbins, Trevor, Schuster, Charles R., Kilbourn, Michael R., Galloway, Gantt P., Roll, John, Lundahl, Leslie H., Keenan, Pamela, Koeppe, Robert A., Johanson, Chris-Ellyn, Frey, Kirk A., and Lockhart, Nancy

Abstract

Preclinical investigations have established that methamphetamine (MA) produces long-term changes in dopamine (DA) neurons in the striatum. Human studies have suggested similar effects and correlated motor and cognitive deficits. The present study was designed to further our understanding of changes in brain function in humans that might result from chronic high dose use of MA after at least 3??months of abstinence.

Published
2006

223. Hectospec, the MMT's 300 Optical Fiber-Fed Spectrograph

Author

Fabricant, Daniel, Fata, Robert, Roll, John, Hertz, Edward, Caldwell, Nelson, Gauron, Thomas, Geary, John, McLeod, Brian, Szentgyorgyi, Andrew, Fabricant, Daniel, Fata, Robert, Roll, John, Hertz, Edward, Caldwell, Nelson, Gauron, Thomas, Geary, John, McLeod, Brian, and Szentgyorgyi, Andrew

Abstract

The Hectospec is a 300 optical fiber fed spectrograph commissioned at the MMT in the spring of 2004. A pair of high-speed six-axis robots move the 300 fiber buttons between observing configurations within ~300 s and to an accuracy ~25 microns. The optical fibers run for 26 m between the MMT's focal surface and the bench spectrograph operating at R~1000-2000. Another high dispersion bench spectrograph offering R~5,000, Hectochelle, is also available. The system throughput, including all losses in the telescope optics, fibers, and spectrograph peaks at ~10% at the grating blaze in 1" FWHM seeing. Correcting for aperture losses at the 1.5" diameter fiber entrance aperture, the system throughput peaks at $\sim$17%. Hectospec has proven to be a workhorse instrument at the MMT. Hectospec and Hectochelle together were scheduled for 1/3 of the available nights since its commissioning. Hectospec has returned \~60,000 reduced spectra for 16 scientific programs during its first year of operation., Comment: 68 pages, 28 figures, to appear in December 2005 PASP

Published
2005
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224. MMT and Magellan Infrared Spectrograph

Author

McLeod, Brian, primary, Fabricant, Daniel, additional, Nystrom, George, additional, McCracken, Ken, additional, Amato, Stephen, additional, Bergner, Henry, additional, Brown, Warren, additional, Burke, Michael, additional, Chilingarian, Igor, additional, Conroy, Maureen, additional, Curley, Dylan, additional, Furesz, Gabor, additional, Geary, John, additional, Hertz, Edward, additional, Holwell, Justin, additional, Matthews, Anne, additional, Norton, Tim, additional, Park, Sang, additional, Roll, John, additional, Zajac, Joseph, additional, Epps, Harland, additional, and Martini, Paul, additional

Published
2012
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225. NIRMOS: a wide-field near-infrared spectrograph for the Giant Magellan Telescope

Author

Fabricant, Daniel, primary, Fata, Robert, additional, Brown, Warren R., additional, McLeod, Brian, additional, Mueller, Mark, additional, Gauron, Thomas, additional, Roll, John, additional, Bergner, Henry, additional, Geary, John, additional, Kradinov, Vladimir, additional, Norton, Tim, additional, Smith, Matt, additional, and Zajac, Joseph, additional

Published
2012
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226. The Giant Magellan Telescope adaptive optics program

Author

Bouchez, Antonin H., primary, Acton, D. Scott, additional, Agapito, Guido, additional, Arcidiacono, Carmelo, additional, Bennet, Francis, additional, Biliotti, Valdemaro, additional, Bonaglia, Marco, additional, Briguglio, Runa, additional, Brusa-Zappellini, Guido, additional, Busoni, Lorenzo, additional, Carbonaro, Luca, additional, Codona, Johanan L., additional, Conan, Rodolphe, additional, Connors, Thomas, additional, Durney, Oliver, additional, Espeland, Brady, additional, Esposito, Simone, additional, Fini, Luca, additional, Gardhouse, Rusty, additional, Gauron, Thomas M., additional, Hart, Michael, additional, Hinz, Philip M., additional, Kanneganti, Srikrishna, additional, Kibblewhite, Edward J., additional, Knox, Russell P., additional, McLeod, Brian A., additional, McMahon, Thomas, additional, Montoya, Manny, additional, Norton, Timothy J., additional, Ordway, Mark P., additional, d'Orgeville, Celine, additional, Parcell, Simon, additional, Piatrou, Piotr K., additional, Pinna, Enrico, additional, Price, Ian, additional, Puglisi, Alfio, additional, Quiros-Pacheco, Fernando, additional, Riccardi, Armando, additional, Roll, John B., additional, Trancho, Gelys, additional, Uhlendorf, Kristina, additional, Vaitheeswaran, Vidhya, additional, van Dam, Marcos A., additional, Weaver, David, additional, and Xompero, Marco, additional

Published
2012
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227. A prototype phasing camera for the Giant Magellan Telescope

Author

Kanneganti, Srikrishna, primary, McLeod, Brian A., additional, Ordway, Mark P., additional, Roll, John B., additional, Shectman, Stephen A., additional, Bouchez, Antonin H., additional, Codona, Johanan, additional, Eng, Roger, additional, Gauron, Thomas M., additional, Handte, Felix, additional, Norton, Timothy J., additional, Streechon, Phil, additional, and Weaver, David, additional

Published
2012
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228. Is exposure to an effective contingency management intervention associated with more positive provider beliefs?

Author

Kirby, Kimberly C., primary, Carpenedo, Carolyn M., additional, Stitzer, Maxine L., additional, Dugosh, Karen L., additional, Petry, Nancy M., additional, Roll, John M., additional, Saladin, Michael E., additional, Cohen, Allan J., additional, Hamilton, John, additional, Reese, Karen, additional, Sillo, Gina R., additional, Stabile, Patricia Quinn, additional, and Sterling, Robert C., additional

Published
2012
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246. Hectochelle: A Multiobject Optical Echelle Spectrograph for the MMT

Author

Szentgyorgyi, Andrew, primary, Furesz, Gabor, additional, Cheimets, Peter, additional, Conroy, Maureen, additional, Eng, Roger, additional, Fabricant, Daniel, additional, Fata, Robert, additional, Gauron, Thomas, additional, Geary, John, additional, McLeod, Brian, additional, Zajac, Joseph, additional, Amato, Stephen, additional, Bergner, Henry, additional, Caldwell, Nelson, additional, Dupree, Andrea, additional, Goddard, Richard, additional, Johnston, Everett, additional, Meibom, Soeren, additional, Mink, Douglas, additional, Pieri, Mario, additional, Roll, John, additional, Tokarz, Susan, additional, Wyatt, William, additional, Epps, Harland, additional, Hartmann, Lee, additional, and Meszaros, Szabolcz, additional

Published
2011
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247. Effects of a randomized contingency management intervention on opiate abstinence and retention in methadone maintenance treatment in China

Author

Hser, Yih-Ing, primary, Li, Jianhua, additional, Jiang, Haifeng, additional, Zhang, Ruimin, additional, Du, Jiang, additional, Zhang, Congbin, additional, Zhang, Bo, additional, Evans, Elizabeth, additional, Wu, Fei, additional, Chang, Yen-Jung, additional, Peng, Chinyi, additional, Huang, David, additional, Stitzer, Maxine L., additional, Roll, John, additional, and Zhao, Min, additional

Published
2011
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