570 results on '"Brown, AD"'
Search Results
2. Fluxes and transformations of nitrogen in a high-elevation catchment, Sierra Nevada
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Williams, MW, Bales, RC, Brown, AD, and Melack, JM
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Agronomy & Agriculture ,Other Chemical Sciences ,Geochemistry ,Environmental Science and Management - Abstract
The fluxes and transformations of nitrogen (N) were investigated from 1985 through 1987 at the Emerald Lake watershed (ELW), a 120 ha high-elevation catchment located in the southern Sierra Nevada, California, USA. Up to 90% of annual wet deposition of N was stored in the seasonal snowpack; NO3- and NH4+ were released from storage in the form of an ionic pulse, where the first fraction of meltwater draining from the snowpack had concentrations of NO3- and NH4+ as high as 28 μeq L-1 compared to bulk concentrations of
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- 1995
3. Synchronization in graph analysis algorithms on the Partially Ordered Event-Triggered Systems many-core architecture
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Rafiev, A, Yakovlev, A, Tarawneh, G, Naylor, MF, Moore, SW, Thomas, DB, Bragg, GM, Vousden, ML, Brown, AD, Rafiev, A [0000-0002-7387-5970], Yakovlev, A [0000-0003-0826-9330], Naylor, MF [0000-0001-9827-8497], Moore, SW [0000-0002-2806-495X], Thomas, DB [0000-0002-9671-0917], Bragg, GM [0000-0002-5201-7977], Vousden, ML [0000-0002-6552-5831], and Apollo - University of Cambridge Repository
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4009 Electronics, Sensors and Digital Hardware ,4606 Distributed Computing and Systems Software ,46 Information and Computing Sciences ,Hardware and Architecture ,Bioengineering ,Electrical and Electronic Engineering ,Software ,40 Engineering - Abstract
One of the key problems in designing and implementing graph analysis algorithms for distributed platforms is to find an optimal way of managing communication flows in the massively parallel processing network. Message‐passing and global synchronization are powerful abstractions in this regard, especially when used in combination. This paper studies the use of a hardware‐implemented refutable global barrier as a design optimization technique aimed at unifying these abstractions at the API level. The paper explores the trade‐offs between the related overheads and performance factors on a message‐passing prototype machine with 49,152 RISC‐V threads distributed over 48 FPGAs (called the Partially Ordered Event‐Triggered Systems platform). Our experiments show that some graph applications favour synchronized communication, but the effect is hard to predict in general because of the interplay between multiple hardware and software factors. A classifier model is therefore proposed and implemented to perform such a prediction based on the application graph topology parameters: graph diameter, degree of connectivity, and reconvergence metric. The presented experimental results demonstrate that the correct choice of communication mode, granted by the new model‐driven approach, helps to achieve 3.22 times faster computation time on average compared to the baseline platform operation.
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- 2022
4. Making sense of myself: Exploring the relationship between identity and sensemaking
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Vough, HC, Caza, BB, Maitlis, S, and Brown, AD
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A considerable body of work uses a sensemaking lens to understand identity processes in organizations. From this perspective, identities are constructed and maintained as individuals attend to, bracket, and draw on cues to enact meanings about who they are. At the same time, however, theories of identity have also been called upon to explain sensemaking. This is not surprising, since sensemaking is grounded in identity construction. As such, the two literatures have multiple, sometimes complicated, points of intersection. In this chapter, we explore the complex relationship between identity and sensemaking. We begin by articulating the assumptions that a sensemaking lens brings to identity. Next, we detail several ways in which the relationship between identity and sensemaking has been described in the existing literature. Then, we propose an understanding of the relationship between identity and sensemaking that integrates and extends previous research. We conclude by suggesting avenues for future research focused on the interplay between identity and sensemaking.
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- 2020
5. Equitable Expanded Carrier Screening Needs Indigenous Clinical and Population Genomic Data
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Easteal, S, Arkell, RM, Balboa, RF, Bellingham, SA, Brown, AD, Calma, T, Cook, MC, Davis, M, Dawkins, HJS, Dinger, ME, Dobbie, MS, Farlow, A, Gwynne, KG, Hermes, A, Hoy, WE, Jenkins, MR, Jiang, SH, Kaplan, W, Leslie, S, Llamas, B, Mann, GJ, McMorran, BJ, McWhirter, Rebekah, Meldrum, CJ, Nagaraj, SH, Newman, SJ, Nunn, JS, Ormond-Parker, L, Orr, NJ, Paliwal, D, Patel, HR, Pearson, G, Pratt, GR, Rambaldini, B, Russell, LW, Savarirayan, R, Silcocks, M, Skinner, JC, Souilmi, Y, Vinuesa, CG, Baynam, G, Easteal, S, Arkell, RM, Balboa, RF, Bellingham, SA, Brown, AD, Calma, T, Cook, MC, Davis, M, Dawkins, HJS, Dinger, ME, Dobbie, MS, Farlow, A, Gwynne, KG, Hermes, A, Hoy, WE, Jenkins, MR, Jiang, SH, Kaplan, W, Leslie, S, Llamas, B, Mann, GJ, McMorran, BJ, McWhirter, Rebekah, Meldrum, CJ, Nagaraj, SH, Newman, SJ, Nunn, JS, Ormond-Parker, L, Orr, NJ, Paliwal, D, Patel, HR, Pearson, G, Pratt, GR, Rambaldini, B, Russell, LW, Savarirayan, R, Silcocks, M, Skinner, JC, Souilmi, Y, Vinuesa, CG, and Baynam, G
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- 2020
6. Identities, Digital Nomads and Liquid Modernity
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Brown, AD, Ahuja, S, Nikolova, N, Clegg, SR, Brown, AD, Ahuja, S, Nikolova, N, and Clegg, SR
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This chapter explores the identity implications for people who inhabit the liquid world of organizations. It draws upon Zygmunt Bauman’s notion of liquid modernity and suggests that traditional conceptions may constrain new ways of thinking about identity and identity tensions in increasingly liquidly modern organizational contexts. The authors focus on literature that discusses identity tensions in the workplace and the responses of individuals as they seek to negotiate and/or manage these tensions. In so doing, the authors draw attention to how the nature of liquid modernity challenges existing conceptions of identity work and raise issues and questions for further research.
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- 2020
7. Progress in adolescent health and wellbeing: tracking 12 headline indicators for 195 countries and territories, 1990-2016
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Azzopardi, PS, Hearps, SJC, Francis, KL, Kennedy, EC, Mokdad, AH, Kassebaum, NJ, Lim, S, Irvine, CMS, Vos, T, Brown, AD, Dogra, S, Kinner, SA, Kaoma, NS, Naguib, M, Reavley, NJ, Requejo, J, Santelli, JS, Sawyer, SM, Skirbekk, V, Temmerman, M, Tewhaiti-Smith, J, Ward, JL, Viner, RM, Patton, GC, Azzopardi, PS, Hearps, SJC, Francis, KL, Kennedy, EC, Mokdad, AH, Kassebaum, NJ, Lim, S, Irvine, CMS, Vos, T, Brown, AD, Dogra, S, Kinner, SA, Kaoma, NS, Naguib, M, Reavley, NJ, Requejo, J, Santelli, JS, Sawyer, SM, Skirbekk, V, Temmerman, M, Tewhaiti-Smith, J, Ward, JL, Viner, RM, and Patton, GC
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BACKGROUND: Rapid demographic, epidemiological, and nutritional transitons have brought a pressing need to track progress in adolescent health. Here, we present country-level estimates of 12 headline indicators from the Lancet Commission on adolescent health and wellbeing, from 1990 to 2016. METHODS: Indicators included those of health outcomes (disability-adjusted life-years [DALYs] due to communicable, maternal, and nutritional diseases; injuries; and non-communicable diseases); health risks (tobacco smoking, binge drinking, overweight, and anaemia); and social determinants of health (adolescent fertility; completion of secondary education; not in education, employment, or training [NEET]; child marriage; and demand for contraception satisfied with modern methods). We drew data from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2016, International Labour Organisation, household surveys, and the Barro-Lee education dataset. FINDINGS: From 1990 to 2016, remarkable shifts in adolescent health occurred. A decrease in disease burden in many countries has been offset by population growth in countries with the poorest adolescent health profiles. Compared with 1990, an additional 250 million adolescents were living in multi-burden countries in 2016, where they face a heavy and complex burden of disease. The rapidity of nutritional transition is evident from the 324·1 million (18%) of 1·8 billion adolescents globally who were overweight or obese in 2016, an increase of 176·9 million compared with 1990, and the 430·7 million (24%) who had anaemia in 2016, an increase of 74·2 million compared with 1990. Child marriage remains common, with an estimated 66 million women aged 20-24 years married before age 18 years. Although gender-parity in secondary school completion exists globally, prevalence of NEET remains high for young women in multi-burden countries, suggesting few opportunities to enter the workforce in these settings. INTERPRETATION: Although
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- 2019
8. A Plant and Parasite Record of a Midden on Auckland Isthmus, New Zealand, Reveals Large Scale Landscape Disturbance, Māori-Introduced Cultigens, and Helminthiasis
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Horrocks, Mark, Brown, Adina, Brown, John, and Presswell, Bronwen
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- 2023
9. DNA methylation across the genome in aged human skeletal muscle tissue and stem cells: The role of HOX genes and physical activity
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Turner, DC, primary, Gorski, PP, additional, Maasar, MF, additional, Seaborne, RA, additional, Baumert, P, additional, Brown, AD, additional, Kitchen, MO, additional, Erskine, RM, additional, Dos-Remedios, I, additional, Voisin, S, additional, Eynon, N, additional, Sultanov, RI, additional, Borisov, OV, additional, Larin, AK, additional, Semenova, EA, additional, Popov, DV, additional, Generozov, EV, additional, Stewart, CE, additional, Drust, B, additional, Owens, DJ, additional, Ahmetov, II, additional, and Sharples, AP, additional
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- 2019
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10. Understanding a successful obesity prevention initiative in children under 5 from a systems perspective.
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Buchowski, MS, Owen, B, Brown, AD, Kuhlberg, J, Millar, L, Nichols, M, Economos, C, Allender, S, Buchowski, MS, Owen, B, Brown, AD, Kuhlberg, J, Millar, L, Nichols, M, Economos, C, and Allender, S
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INTRODUCTION/BACKGROUND: Systems thinking represents an innovative and logical approach to understanding complexity in community-based obesity prevention interventions. We report on an approach to apply systems thinking to understand the complexity of a successful obesity prevention intervention in early childhood (children aged up to 5 years) conducted in a regional city in Victoria, Australia. METHODS: A causal loop diagram (CLD) was developed to represent system elements related to a successful childhood obesity prevention intervention in early childhood. Key stakeholder interviews (n = 16) were examined retrospectively to generate purposive text data, create microstructures, and form a CLD. RESULTS: A CLD representing key stakeholder perceptions of a successful intervention comprised six key feedback loops explaining changes in project implementation over time. The loops described the dynamics of collaboration, network formation, community awareness, human resources, project clarity, and innovation. CONCLUSION: The CLD developed provides a replicable means to capture, evaluate and disseminate a description of the dynamic elements of a successful obesity prevention intervention in early childhood.
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- 2018
11. Effects of chemical composition and test conditions on the dynamic tensile response of Zr-based metallic glasses
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Wang, F, Laws, K, Martinez, D, Trujillo, CP, Brown, AD, Cerreta, EK, Hazell, PJ, Ferry, M, Quadir, MZ, Jiang, J, Escobedo-Diaz, JP, Wang, F, Laws, K, Martinez, D, Trujillo, CP, Brown, AD, Cerreta, EK, Hazell, PJ, Ferry, M, Quadir, MZ, Jiang, J, and Escobedo-Diaz, JP
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The effects of impact velocity and temperature on the dynamic mechanical behavior of two bulk metallic (BMG) alloys with slightly different elemental compositions (Zr55Cu30Ni5Al30 and Zr46Cu38Ag8Al38) have been investigated. Bullet-shaped samples were accelerated by a gas gun to speeds in the 400∼600m/s range and tested at both room temperature and 250°C. The samples impacted steel extrusion dies which subjected the bullets to high strains at relatively high strain-rates. The extruded fragments were subsequently soft recovered by using low density foams and examined by means of optical/scanning electron microscopy and differential scanning calorimetry. It was found that shear banding was the dictating mechanism responsible for the fracture of all BMGs. At room temperature, the Zr55Cu30Ni5Al30 alloy exhibited a higher resistance to fragmentation than the Zr46Cu38Ag8Al38 alloy. At 250°C, significant melting was observed in the recovered fragments of both alloys, which indicates that the BMG glassy structure undergoes a melting process and deformation likely occurs homogeneously.
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- 2017
12. The high-velocity impact of Dyneema® and Spectra® laminates: Implementation of a simple thermal softening model
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Austin, S, Brown, AD, Escobedo, JP, Wang, H, Kleine, H, Hazell, PJ, Austin, S, Brown, AD, Escobedo, JP, Wang, H, Kleine, H, and Hazell, PJ
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The commercial hydrocode ANSYS AUTODYN® was used to create a thermally dependent model of an Ultra-High Molecular Weight Polyethylene (UHMW-PE) composite under high and hypervelocity impact. In particular this model was validated against high-velocity fragment-simulating projectile (FSP) impacts and hypervelocity polycarbonate cylinder impacts at 2,100 m/s and 3,500 m/s. It appeared that despite the same material model being used for thick unidirectional Dyneema® laminates and thin woven Spectra® laminates, the model showed reasonable correlation in all cases. This suggests that modelling results from these types of studies are not sensitive to the exact parameters used in the material model.
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- 2017
13. Neuropsychological predictors of trauma centrality in OIF/OEF veterans
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Hart, RP, Bagrodia, R, Rahman, N, Bryant, RA, Titcombe-Parekh, R, Marmar, CR, Brown, AD, Hart, RP, Bagrodia, R, Rahman, N, Bryant, RA, Titcombe-Parekh, R, Marmar, CR, and Brown, AD
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© 2017 Hart, Bagrodia, Rahman, Bryant, Titcombe-Parekh, Marmar and Brown. This study examined whether reduced performance on two neuropsychological tasks, cognitive flexibility and working memory, were associated with higher levels of trauma centrality. A growing body of research has shown that trauma centrality, the extent to which a person believes a potentially traumatic event has become central to their self-identity and life story, is associated with post-traumatic stress disorder (PTSD). Furthermore, PTSD is often associated with alterations in neuropsychological functioning. The relationship between neuropsychological processes and trauma centrality, however, has yet to be explored. OEF/OIF combat veterans (N = 41) completed the Post-traumatic Diagnostic Scale (PDS), the Beck Depression Inventory-II (BDI-II), the Centrality of Event Scale (CES), and on-line measures of cognitive flexibility and working memory assessed via WebNeuro. Bivariate Pearson correlations showed that CES scores were positively correlated with PDS and BDI scores, and negatively correlated with cognitive flexibility and working memory. Linear regressions revealed that working memory significantly predicted CES when controlling for depression and PTSD severity while cognitive flexibility approached significance when controlling for these same variables. This study employed a cross-sectional design, precluding causality. The small sample size, entirely male sample, and use of an online neuropsychological assessment warrant follow-up research. Although numerous studies have found an association between CES and PTSD, this is the first to suggest that neuropsychological processes underlie the construct of trauma centrality. Given the importance of maladaptive cognitive processes underlying the pathogenesis of PTSD, these data suggest that future studies aimed at examining the link between neuropsychological processes and maladaptive cognitive processes, such as trauma centrality, may help to
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- 2017
14. Serendipity, Vulnerability, and Imperfection: Harnessing Live Video for “Authentic” Teacher Performances
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Brown, Adam and Wade, Emily
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- 2022
15. Computational and Split-Hopkinson Pressure-Bar studies on the effect of the jacket during penetration of an AK47 bullet into ceramic armour
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Brown, LB, primary, Hazell, PJ, additional, Crouch, IG, additional, Escobedo, JP, additional, and Brown, AD, additional
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- 2017
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16. A Plant and Parasite Record of a Midden on Auckland Isthmus, New Zealand, Reveals Large Scale Landscape Disturbance, Māori-introduced Cultigens, and Helminthiasis
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Horrocks, Mark, Brown, Adina, Brown, John, and Presswell, Bronwen
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- 2022
- Full Text
- View/download PDF
17. Organizing lesbian/queer bathhouse events: Emerging forms of sexual experience
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Brown, AD, primary and Gailey, Nerissa, additional
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- 2016
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18. Mental Health Functioning in the Human Rights Field: Findings from an International Internet-Based Survey
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Seedat, S, Joscelyne, A, Knuckey, S, Satterthwaite, ML, Bryant, RA, Li, M, Qian, M, Brown, AD, Seedat, S, Joscelyne, A, Knuckey, S, Satterthwaite, ML, Bryant, RA, Li, M, Qian, M, and Brown, AD
- Abstract
Human rights advocates play a critical role in promoting respect for human rights world-wide, and engage in a broad range of strategies, including documentation of rights violations, monitoring, press work and report-writing, advocacy, and litigation. However, little is known about the impact of human rights work on the mental health of human rights advocates. This study examined the mental health profile of human rights advocates and risk factors associated with their psychological functioning. 346 individuals currently or previously working in the field of human rights completed an internet-based survey regarding trauma exposure, depression, posttraumatic stress disorder (PTSD), resilience and occupational burnout. PTSD was measured with the Posttraumatic Stress Disorder Checklist-Civilian Version (PCL-C) and depression was measured with the Patient History Questionnaire-9 (PHQ-9). These findings revealed that among human rights advocates that completed the survey, 19.4% met criteria for PTSD, 18.8% met criteria for subthreshold PTSD, and 14.7% met criteria for depression. Multiple linear regressions revealed that after controlling for symptoms of depression, PTSD symptom severity was predicted by human rights-related trauma exposure, perfectionism and negative self-appraisals about human rights work. In addition, after controlling for symptoms of PTSD, depressive symptoms were predicted by perfectionism and lower levels of self-efficacy. Survey responses also suggested high levels of resilience: 43% of responders reported minimal symptoms of PTSD. Although survey responses suggest that many human rights workers are resilient, they also suggest that human rights work is associated with elevated rates of PTSD and depression. The field of human rights would benefit from further empirical research, as well as additional education and training programs in the workplace about enhancing resilience in the context of human rights work.
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- 2015
19. Exposing problems Muslim immigrants face in NZ
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Brown, Adam
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- 2023
20. Association of common genetic variants in GPCPD1 with scaling of visual cortical surface area in humans
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Bakken, TE, Roddey, JC, Djurovic, S, Akshoomoff, N, Amaral, DG, Bloss, CS, Casey, BJ, Chang, L, Ernst, TM, Gruen, JR, Jernigan, TL, Kaufmann, WE, Kenet, T, Kennedy, DN, Kuperman, JM, Murray, SS, Sowell, ER, Rimol, LM, Mattingsdal, M, Melle, I, Agartz, I, Andreassen, OA, Schork, NJ, Dale, AM, Alzheimer’s Disease Neuroimaging Initiative, Pediatric Imaging, Neurocognition, Genetics Study, Weiner, M, Aisen, P, Petersen, R, Jack, CR, Jr, Jagust, W, Trojanowki, JQ, Toga, AW, Beckett, L, Green, RC, Saykin, AJ, Morris, J, Liu, E, Montine, T, Gamst, A, Thomas, RG, Donohue, M, Walter, S, Gessert, D, Sather, T, Harvey, D, Kornak, J, Dale, A, Bernstein, M, Felmlee, J, Fox, N, Thompson, P, Schuff, N, Alexander, G, DeCarli, C, Bandy, D, Koeppe, RA, Foster, N, Reiman, EM, Chen, K, Mathis, C, Cairns, NJ, Taylor-Reinwald, L, Shaw, L, Lee, VM, Korecka, M, Crawford, K, Neu, S, Foroud, TM, Potkin, S, Shen, L, Kachaturian, Z, Frank, R, Snyder, PJ, Molchan, S, Kaye, J, Quinn, J, Lind, B, Dolen, S, Schneider, LS, Pawluczyk, S, Spann, BM, Brewer, J, Vanderswag, H, Heidebrink, JL, Lord, JL, Johnson, K, Doody, RS, Villanueva-Meyer, J, Chowdhury, M, Stern, Yaakov, Honig, LS, Bell, KL, Morris, JC, Ances, B, Carroll, M, Leon, S, Mintun, MA, Schneider, S, Marson, D, Griffith, R, Clark, D, Grossman, H, Mitsis, E, Romirowsky, A, deToledo-Morrell, L, Shah, RC, Duara, R, Varon, D, Roberts, P, Albert, M, Onyike, C, Kielb, S, Rusinek, H, de, Leon, MJ, Glodzik, L, De, Santi, S, Doraiswamy, PM, Petrella, JR, Coleman, RE, Arnold, SE, Karlawish, JH, Wolk, D, Smith, CD, Jicha, G, Hardy, P, Lopez, OL, Oakley, M, Simpson, DM, Porsteinsson, AP, Goldstein, BS, Martin, K, Makino, KM, Ismail, MS, Brand, C, Mulnard, RA, Thai, G, Mc-Adams-Ortiz, C, Womack, K, Mathews, D, Quiceno, M, Diaz-Arrastia, R, King, R, Martin-Cook, K, DeVous, M, Levey, AI, Lah, JJ, Cellar, JS, Burns, JM, Anderson, HS, Swerdlow, RH, Apostolova, L, Lu, PH, Bartzokis, G, Silverman, DH, Graff-Radford, NR, Parfitt, F, Johnson, H, Farlow, MR, Hake, AM, Matthews, BR, Herring, S, van, Dyck, CH, Carson, RE, MacAvoy, MG, Chertkow, H, Bergman, H, Hosein, C, Black, S, Stefanovic, B, Caldwell, C, Ging-Yuek, Hsiung, R, Feldman, H, Mudge, B, Assaly, M, Kertesz, A, Rogers, J, Trost, D, Bernick, C, Munic, D, Kerwin, D, Mesulam, MM, Lipowski, K, Wu, CK, Johnson, N, Sadowsky, C, Martinez, W, Villena, T, Turner, RS, Reynolds, B, Sperling, RA, Johnson, KA, Marshall, G, Frey, M, Yesavage, J, Taylor, JL, Lane, B, Rosen, A, Tinklenberg, J, Sabbagh, M, Belden, C, Jacobson, S, Kowall, N, Killiany, R, Budson, AE, Norbash, A, Johnson, PL, Obisesan, TO, Wolday, S, Bwayo, SK, Lerner, A, Hudson, L, Ogrocki, P, Fletcher, E, Carmichael, O, Olichney, J, Kittur, S, Borrie, M, Lee, TY, Bartha, R, Johnson, S, Asthana, S, Carlsson, CM, Potkin, SG, Preda, A, Nguyen, D, Tariot, P, Fleisher, A, Reeder, S, Bates, V, Capote, H, Rainka, M, Scharre, DW, Kataki, M, Zimmerman, EA, Celmins, D, Brown, AD, Pearlson, GD, Blank, K, Anderson, K, Santulli, RB, Schwartz, ES, Sink, KM, Williamson, JD, Garg, P, Watkins, F, Ott, BR, Querfurth, H, Tremont, G, Salloway, S, Malloy, P, Correia, S, Rosen, HJ, Miller, BL, Mintzer, J, Longmire, CF, Spicer, K, Finger, E, Rachinsky, I, Drost, D, Jernigan, T, McCabe, C, Grant, E, Ernst, T, Kuperman, J, Chung, Y, Murray, S, Bloss, C, Darst, B, Pritchett, L, Saito, A, Amaral, D, DiNino, M, Eyngorina, B, Sowell, E, Houston, S, Soderberg, L, Kaufmann, W, van, Zijl, P, Rizzo-Busack, H, Javid, M, Mehta, N, Ruberry, E, Powers, A, Rosen, B, Gebhard, N, Manigan, H, Frazier, J, Kennedy, D, Yakutis, L, Hill, M, Gruen, J, Bosson-Heenan, J, and Carlson, H
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anatomy & histology ,pathology [Visual Cortex] ,Adult ,Diagnostic Imaging ,Male ,Linkage disequilibrium ,Visual perception ,genetic structures ,Adolescent ,Genotype ,Imaging genetics ,methods [Diagnostic Imaging] ,Single-nucleotide polymorphism ,Genome-wide association study ,Saccharomyces cerevisiae ,Biology ,Polymorphism, Single Nucleotide ,Cohort Studies ,methods [Brain Mapping] ,pathology [Brain] ,Cortex (anatomy) ,Genetic variation ,Medicine and Health Sciences ,medicine ,Humans ,genetics [Phosphoric Diester Hydrolases] ,Aged ,Visual Cortex ,Genetics ,Brain Mapping ,Multidisciplinary ,Models, Genetic ,Phosphoric Diester Hydrolases ,metabolism [Saccharomyces cerevisiae] ,Brain ,Genetic Variation ,Genomics ,Middle Aged ,Biological Sciences ,Visual cortex ,medicine.anatomical_structure ,Female ,Genome-Wide Association Study - Abstract
Visual cortical surface area varies two- to threefold between human individuals, is highly heritable, and has been correlated with visual acuity and visual perception. However, it is still largely unknown what specific genetic and environmental factors contribute to normal variation in the area of visual cortex. To identify SNPs associated with the proportional surface area of visual cortex, we performed a genome-wide association study followed by replication in two independent cohorts. We identified one SNP (rs6116869) that replicated in both cohorts and had genome-wide significant association ( P combined = 3.2 × 10 −8 ). Furthermore, a metaanalysis of imputed SNPs in this genomic region identified a more significantly associated SNP (rs238295; P = 6.5 × 10 −9 ) that was in strong linkage disequilibrium with rs6116869. These SNPs are located within 4 kb of the 5′ UTR of GPCPD1 , glycerophosphocholine phosphodiesterase GDE1 homolog ( Saccharomyces cerevisiae ), which in humans, is more highly expressed in occipital cortex compared with the remainder of cortex than 99.9% of genes genome-wide. Based on these findings, we conclude that this common genetic variation contributes to the proportional area of human visual cortex. We suggest that identifying genes that contribute to normal cortical architecture provides a first step to understanding genetic mechanisms that underlie visual perception.
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- 2012
21. Becoming Trauma: Conceptualizing the Registration of Trauma through Biological, Cognitive, and Cultural Frameworks
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Parnes, McKenna F., Neuwirth, Evan, Pfeffer, Kendall, Superka, Julia E., and Brown, Adam D.
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- 2020
- Full Text
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22. Beyond either/or: Reading trans* lesbian identities
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Gailey, Nerissa, primary and Brown, AD, additional
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- 2015
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23. Generative FDG-PET and MRI model of aging and disease progression in Alzheimer's disease.
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Alzheimer's Disease Neuroimaging Initiative, Weiner, M., Aisen, P., Petersen, R., Jack CR.<Suffix>Jr</Suffix>, Jagust, W., Trojanowki, JQ., Toga, AW., Beckett, L., Green, RC., Saykin, AJ., Morris, J., Liu, E., Montine, T., Gamst, A., Thomas, RG., Donohue, M., Walter, S., Gessert, D., Sather, T., Harvey, D., Kornak, J., Dale, A., Bernstein, M., Felmlee, J., Fox, N., Thompson, P., Schuff, N., DeCarli, C., Bandy, D., Koeppe, RA., Foster, N., Reiman, EM., Chen, K., Mathis, C., Cairns, NJ., Taylor-Reinwald, L., Shaw, L., Lee, VM., Korecka, M., Crawford, K., Neu, S., Foroud, TM., Potkin, S., Shen, L., Kachaturian, Z., Frank, R., Snyder, PJ., Molchan, S., Kaye, J., Quinn, J., Lind, B., Dolen, S., Schneider, LS., Pawluczyk, S., Spann, BM., Brewer, J., Vanderswag, H., Heidebrink, JL., Lord, JL., Johnson, K., Doody, RS., Villanueva-Meyer, J., Chowdhury, M., Stern, Y., Honig, LS., Bell, KL., Morris, JC., Ances, B., Carroll, M., Leon, S., Mintun, MA., Schneider, S., Marson, D., Griffith, R., Clark, D., Grossman, H., Mitsis, E., Romirowsky, A., deToledo-Morrell, L., Shah, RC., Duara, R., Varon, D., Roberts, P., Albert, M., Onyike, C., Kielb, S., Rusinek, H., de Leon MJ., Glodzik, L., De Santi, S., Doraiswamy, P., Petrella, JR., Coleman, R., Arnold, SE., Karlawish, JH., Wolk, D., Smith, CD., Jicha, G., Hardy, P., Lopez, OL., Oakley, M., Simpson, DM., Porsteinsson, AP., Goldstein, BS., Martin, K., Makino, KM., Ismail, M., Brand, C., Mulnard, RA., Thai, G., Mc-Adams-Ortiz, C., Womack, K., Mathews, D., Quiceno, M., Diaz-Arrastia, R., King, R., Martin-Cook, K., DeVous, M., Levey, AI., Lah, JJ., Cellar, JS., Burns, JM., Anderson, HS., Swerdlow, RH., Apostolova, L., Lu, PH., Bartzokis, G., Silverman, DH., Graff-Radford, NR., Parfitt, F., Johnson, H., Farlow, MR., Hake, AM., Matthews, BR., Herring, S., van Dyck CH., Carson, RE., MacAvoy, MG., Chertkow, H., Bergman, H., Hosein, C., Black, S., Stefanovic, B., Caldwell, C., Hsiung, GY., Feldman, H., Mudge, B., Assaly, M., Kertesz, A., Rogers, J., Trost, D., Bernick, C., Munic, D., Kerwin, D., Mesulam, MM., Lipowski, K., Wu, CK., Johnson, N., Sadowsky, C., Martinez, W., Villena, T., Turner, RS., Reynolds, B., Sperling, RA., Johnson, KA., Marshall, G., Frey, M., Yesavage, J., Taylor, JL., Lane, B., Rosen, A., Tinklenberg, J., Sabbagh, M., Belden, C., Jacobson, S., Kowall, N., Killiany, R., Budson, AE., Norbash, A., Johnson, PL., Obisesan, TO., Wolday, S., Bwayo, SK., Lerner, A., Hudson, L., Ogrocki, P., Fletcher, E., Carmichael, O., Olichney, J., Kittur, S., Borrie, M., Lee, TY., Bartha, R., Johnson, S., Asthana, S., Carlsson, CM., Potkin, SG., Preda, A., Nguyen, D., Tariot, P., Fleisher, A., Reeder, S., Bates, V., Capote, H., Rainka, M., Scharre, DW., Kataki, M., Zimmerman, EA., Celmins, D., Brown, AD., Pearlson, GD., Blank, K., Anderson, K., Santulli, RB., Schwartz, ES., Sink, KM., Williamson, JD., Garg, P., Watkins, F., Ott, BR., Querfurth, H., Tremont, G., Salloway, S., Malloy, P., Correia, S., Rosen, HJ., Miller, BL., Mintzer, J., Longmire, CF., Spicer, K., Finger, E., Rachinsky, I., Drost, D., Dukart, J., Kherif, F., Mueller, K., Adaszewski, S., Schroeter, M.L., Frackowiak, R.S., Draganski, B., Alzheimer's Disease Neuroimaging Initiative, Weiner, M., Aisen, P., Petersen, R., Jack CR.<Suffix>Jr</Suffix>, Jagust, W., Trojanowki, JQ., Toga, AW., Beckett, L., Green, RC., Saykin, AJ., Morris, J., Liu, E., Montine, T., Gamst, A., Thomas, RG., Donohue, M., Walter, S., Gessert, D., Sather, T., Harvey, D., Kornak, J., Dale, A., Bernstein, M., Felmlee, J., Fox, N., Thompson, P., Schuff, N., DeCarli, C., Bandy, D., Koeppe, RA., Foster, N., Reiman, EM., Chen, K., Mathis, C., Cairns, NJ., Taylor-Reinwald, L., Shaw, L., Lee, VM., Korecka, M., Crawford, K., Neu, S., Foroud, TM., Potkin, S., Shen, L., Kachaturian, Z., Frank, R., Snyder, PJ., Molchan, S., Kaye, J., Quinn, J., Lind, B., Dolen, S., Schneider, LS., Pawluczyk, S., Spann, BM., Brewer, J., Vanderswag, H., Heidebrink, JL., Lord, JL., Johnson, K., Doody, RS., Villanueva-Meyer, J., Chowdhury, M., Stern, Y., Honig, LS., Bell, KL., Morris, JC., Ances, B., Carroll, M., Leon, S., Mintun, MA., Schneider, S., Marson, D., Griffith, R., Clark, D., Grossman, H., Mitsis, E., Romirowsky, A., deToledo-Morrell, L., Shah, RC., Duara, R., Varon, D., Roberts, P., Albert, M., Onyike, C., Kielb, S., Rusinek, H., de Leon MJ., Glodzik, L., De Santi, S., Doraiswamy, P., Petrella, JR., Coleman, R., Arnold, SE., Karlawish, JH., Wolk, D., Smith, CD., Jicha, G., Hardy, P., Lopez, OL., Oakley, M., Simpson, DM., Porsteinsson, AP., Goldstein, BS., Martin, K., Makino, KM., Ismail, M., Brand, C., Mulnard, RA., Thai, G., Mc-Adams-Ortiz, C., Womack, K., Mathews, D., Quiceno, M., Diaz-Arrastia, R., King, R., Martin-Cook, K., DeVous, M., Levey, AI., Lah, JJ., Cellar, JS., Burns, JM., Anderson, HS., Swerdlow, RH., Apostolova, L., Lu, PH., Bartzokis, G., Silverman, DH., Graff-Radford, NR., Parfitt, F., Johnson, H., Farlow, MR., Hake, AM., Matthews, BR., Herring, S., van Dyck CH., Carson, RE., MacAvoy, MG., Chertkow, H., Bergman, H., Hosein, C., Black, S., Stefanovic, B., Caldwell, C., Hsiung, GY., Feldman, H., Mudge, B., Assaly, M., Kertesz, A., Rogers, J., Trost, D., Bernick, C., Munic, D., Kerwin, D., Mesulam, MM., Lipowski, K., Wu, CK., Johnson, N., Sadowsky, C., Martinez, W., Villena, T., Turner, RS., Reynolds, B., Sperling, RA., Johnson, KA., Marshall, G., Frey, M., Yesavage, J., Taylor, JL., Lane, B., Rosen, A., Tinklenberg, J., Sabbagh, M., Belden, C., Jacobson, S., Kowall, N., Killiany, R., Budson, AE., Norbash, A., Johnson, PL., Obisesan, TO., Wolday, S., Bwayo, SK., Lerner, A., Hudson, L., Ogrocki, P., Fletcher, E., Carmichael, O., Olichney, J., Kittur, S., Borrie, M., Lee, TY., Bartha, R., Johnson, S., Asthana, S., Carlsson, CM., Potkin, SG., Preda, A., Nguyen, D., Tariot, P., Fleisher, A., Reeder, S., Bates, V., Capote, H., Rainka, M., Scharre, DW., Kataki, M., Zimmerman, EA., Celmins, D., Brown, AD., Pearlson, GD., Blank, K., Anderson, K., Santulli, RB., Schwartz, ES., Sink, KM., Williamson, JD., Garg, P., Watkins, F., Ott, BR., Querfurth, H., Tremont, G., Salloway, S., Malloy, P., Correia, S., Rosen, HJ., Miller, BL., Mintzer, J., Longmire, CF., Spicer, K., Finger, E., Rachinsky, I., Drost, D., Dukart, J., Kherif, F., Mueller, K., Adaszewski, S., Schroeter, M.L., Frackowiak, R.S., and Draganski, B.
- Abstract
The failure of current strategies to provide an explanation for controversial findings on the pattern of pathophysiological changes in Alzheimer's Disease (AD) motivates the necessity to develop new integrative approaches based on multi-modal neuroimaging data that captures various aspects of disease pathology. Previous studies using [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) and structural magnetic resonance imaging (sMRI) report controversial results about time-line, spatial extent and magnitude of glucose hypometabolism and atrophy in AD that depend on clinical and demographic characteristics of the studied populations. Here, we provide and validate at a group level a generative anatomical model of glucose hypo-metabolism and atrophy progression in AD based on FDG-PET and sMRI data of 80 patients and 79 healthy controls to describe expected age and symptom severity related changes in AD relative to a baseline provided by healthy aging. We demonstrate a high level of anatomical accuracy for both modalities yielding strongly age- and symptom-severity- dependant glucose hypometabolism in temporal, parietal and precuneal regions and a more extensive network of atrophy in hippocampal, temporal, parietal, occipital and posterior caudate regions. The model suggests greater and more consistent changes in FDG-PET compared to sMRI at earlier and the inversion of this pattern at more advanced AD stages. Our model describes, integrates and predicts characteristic patterns of AD related pathology, uncontaminated by normal age effects, derived from multi-modal data. It further provides an integrative explanation for findings suggesting a dissociation between early- and late-onset AD. The generative model offers a basis for further development of individualized biomarkers allowing accurate early diagnosis and treatment evaluation.
- Published
- 2013
24. Meditation Time Travel to 2050 (for Movement Generation)
- Author
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brown, adrienne maree
- Published
- 2020
25. The Rhetoric of Institutional Change
- Author
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Brown, AD, Ainsworth, S, Grant, D, Brown, AD, Ainsworth, S, and Grant, D
- Abstract
This paper analyses how a case for institutional change is made through rhetoric in an individual text. Drawing on Aristotle’s three types of rhetorical justification, logos, pathos and ethos, we make three contributions. First, we show that the multiple competing logics which often dominate a field can become incorporated into key texts. As a result, the notionally rational argumentation repertoires which underpin each logic exist in tension, and are prone to contradict each other, making it difficult for a text to support convincingly one logic rather than another on the basis of logos appeals. In such instances, the authors of a text may favour one logic over another through the strategic use of ethos (moralizing) and pathos (emotion-evoking) rhetoric. Second, we demonstrate how ethos and pathos function to construct social categories (identities) and draw on dominant cultural myths. Third, we theorize these textual strategies as acts aimed at reconfiguring relations of power/knowledge.
- Published
- 2012
26. 'Invisible walls' and 'silent hierarchies': A case study of power relations in an architecture firm
- Author
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Brown, AD, Kornberger, M, Clegg, SR, Carter, C, Brown, AD, Kornberger, M, Clegg, SR, and Carter, C
- Abstract
In this article we investigate how power relates to the production of creative identities and outcomes. We report on an in-depth case study of an award-winning creative architecture firm. Our data show how talk about creativity and the creative identities of architects can be analysed as effects of power. Theoretically, our study represents an investigation into the disciplining of professional architects' discourse about their selves, their organization, and their work. This article adds to debates on creative industries, demonstrating that creativity is deeply embedded in organizationally based relations of power. © The Author(s) 2010.
- Published
- 2010
27. 'Ethics' as a discursive resource for identity work
- Author
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Kornberger, MM, Brown, AD, Kornberger, MM, and Brown, AD
- Abstract
This article analyses how participants in a not-for-profit service organization (the `Incubator') drew on understandings of 'ethics' in order to make sense of their individual and collective selves. Identities are theorized as being constituted within discursive regimes, and notions of ethics are conceived as discursive resources on which individuals and groups may draw in their attempts to author versions of their self and organizational narratives. We show how conceptions of ethics were a rich vein on which organizational members drew to elaborate narratives that legitimated particular modes of working and which cohered an otherwise quite disparate community of individuals. The research contribution of this article is twofold. First, we discuss how a discourse focused on ethics may be a strategic resource for identity work. Second, we analyse how talk and writing about issues of ethics are implicated in relations of power and ongoing struggles for control over organizations conceived as discursive spaces. In so doing, this article advances our understanding of ethics as discursively complex constructions, which require the micro-analysis of language practices in situated contexts for action
- Published
- 2007
28. Beyond either/or: Reading trans* lesbian identities.
- Author
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Gailey, Nerissa and Brown, AD
- Subjects
- *
LESBIANS , *GENDER transition , *HUMAN sexuality , *MEMOIRS , *FEMINISM - Abstract
Previous research has explored the affiliation and distancing strategies employed in published memoirs of gender transition. In this article, we are particularly interested in elucidating the ways in which individuals construct identities and characterize their sexualities, and how sociohistorical constraints might influence what is expressed with respect to this in personal narratives of transition. Using the memoirs of Lili Elbe (Hoyer, 1933) and Joy Ladin (2013) as conceptual brackets, this article investigates the complex relationship between the development and articulation of trans* identities and lesbian sexualities within the context of published memoirs of gender transition. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
29. Writing responsibly: Narrative fiction and organization studies
- Author
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Rhodes, C, Brown, AD, Rhodes, C, and Brown, AD
- Abstract
In this paper, we reflect on the use of fictional source material and fictional formats in organization studies in order to explore issues of responsibility in the writing of research. We start by examining how research using fictional narrative methods has worked to radically destabilize distinctions between what is real and what is fictional. In relation to this, we ask the question: if a research account can be regarded as fiction, what are the implications of this insight for the responsibilities of authors? Opposing the view that using fiction necessarily leads to an 'anything goes' relativism, we argue that a recognition of the fictionality of research texts implies a heightened sense of researcher-author responsibility. We see our main contribution as extending existing discussions of reflexivity in research into a consideration of issues of ethics and responsibility as it relates to the textuality of research writing. To do so, we draw on Derrida's theorization of responsibility and undecidability as a way of problematizing and discussing the ethics of research in relation to its textuality. We argue that the explicit borrowing from fictional genres evinces the essentially 'written' and fictional status of research papers, and highlights the ethical dimensions associated with decisions related to representational strategies and authorial subjectivity. Copyright © 2005 SAGE.
- Published
- 2005
30. Narrative, organizations and research
- Author
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Rhodes, C, Brown, AD, Rhodes, C, and Brown, AD
- Abstract
Given the rapid expansion of narrative approaches in management and organization theory in recent years, this paper investigates the contribution of this literature to the under-standing of organizations and processes of organizing. The paper tells the story of the development of narrative approaches in organizational theory. Narrative's contribution to substantive areas of organization theory is evaluated. These developments are then reviewed in relation to an ongoing tension between story and science. We conclude by contemplating some of the criticisms, and the future, of narrative research. © Blackwell Publishing Ltd 2005.
- Published
- 2005
31. Hard Romping: Zora Neale Hurston, White Women, and the Right to Play
- Author
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Brown, Adrienne
- Published
- 2018
32. Appraisal Narratives: Reading Race on the Midcentury Block
- Author
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Brown, Adrienne
- Published
- 2018
- Full Text
- View/download PDF
33. We Wear the White Mask: John Cheever Writes Race
- Author
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Brown, Adrienne
- Published
- 2018
- Full Text
- View/download PDF
34. A physical model of the atmospheric aerosol turbidity for estimating the illuminance of direct sunlight
- Author
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Brown, AD, primary
- Published
- 2008
- Full Text
- View/download PDF
35. Multimodule Web-Based COVID-19 Anxiety and Stress Resilience Training (COAST): Single-Cohort Feasibility Study With First Responders
- Author
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Heyen, Janna Marie, Weigl, Noé, Müller, Mario, Müller, Stefan, Eberle, Urs, Manoliu, Andrei, Vetter, Stefan, Brown, Adam D, Berger, Thomas, and Kleim, Birgit
- Subjects
Medicine - Abstract
BackgroundSince the emergence of COVID-19, health care workers and first responders have been at a high risk for mental health symptoms owing to their exposure to the virus and increased work stress during the pandemic. Although interventions exist to address mental health issues following exposure to disasters, emergencies, and humanitarian crises, considerably less is known about web-based unguided interventions to help mitigate the negative impacts of such events. Additionally, in contexts in which emergencies reduce access to in-person care, remote forms of support are critical, yet there are limited studies on the use of such interventions. Evidence-based, easy-to-use, scalable interventions are direly needed for this population. ObjectiveThis study aimed to develop and test the feasibility of an unguided electronic mental health program, COVID-19 Anxiety and Stress Resilience Training (COAST), tailored to first responders and health care personnel, based on scientific evidence and empirically based techniques. MethodsWe developed COVID-19–specific training modules focusing on several domains that are previously reported as key to resilience and stress recovery: self-efficacy, mindfulness, sleep quality, and positive thinking. The program was made available to 702 first responders between May and August 2020, during the COVID-19 pandemic. Sociodemographic, work-, and COVID-19–related information was collected, and psychometric questionnaires were completed. We examined user acceptance and user activity, including module choice and participant feedback. ResultsIn total, 52 of 702 (7%) first responders to whom we reached out used the program at least once. COAST use was independent of age, sex, or baseline levels of self-efficacy, mindful awareness, sleep quality, and positive thinking (for all, P>.39). First responders who had tested positive and those who had been quarantined were more likely to engage in the program. A click count analysis per module showed that participants used the self-efficacy and mindfulness modules most often, with 382 and 122 clicks, respectively, over 15 weeks. Overall, first responders expressed satisfaction with the program. ConclusionsEngagement of first responders in the multimodule web-based COAST program was feasible and the first responder cohort expressed overall satisfaction with the program. Those in more difficult circumstances, including those in quarantine and those who tested positive, may be more likely to engage in such programs. Further controlled studies could pave the way for efficacy studies and the development of additional modules, including just-in-time interventions or blended interventions combining individual use of an unguided self-help intervention, such as COAST, with subsequent individual psychotherapy for those who continue to experience stress and psychological symptoms.
- Published
- 2021
- Full Text
- View/download PDF
36. Secure Record Linkage of Large Health Data Sets: Evaluation of a Hybrid Cloud Model
- Author
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Brown, Adrian Paul and Randall, Sean M
- Subjects
Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
BackgroundThe linking of administrative data across agencies provides the capability to investigate many health and social issues with the potential to deliver significant public benefit. Despite its advantages, the use of cloud computing resources for linkage purposes is scarce, with the storage of identifiable information on cloud infrastructure assessed as high risk by data custodians. ObjectiveThis study aims to present a model for record linkage that utilizes cloud computing capabilities while assuring custodians that identifiable data sets remain secure and local. MethodsA new hybrid cloud model was developed, including privacy-preserving record linkage techniques and container-based batch processing. An evaluation of this model was conducted with a prototype implementation using large synthetic data sets representative of administrative health data. ResultsThe cloud model kept identifiers on premises and uses privacy-preserved identifiers to run all linkage computations on cloud infrastructure. Our prototype used a managed container cluster in Amazon Web Services to distribute the computation using existing linkage software. Although the cost of computation was relatively low, the use of existing software resulted in an overhead of processing of 35.7% (149/417 min execution time). ConclusionsThe result of our experimental evaluation shows the operational feasibility of such a model and the exciting opportunities for advancing the analysis of linkage outputs.
- Published
- 2020
- Full Text
- View/download PDF
37. Quiet diplomat helped NZ punch above its weight
- Author
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Brown, Adrian
- Published
- 2021
38. 'Invisible walls' and 'silent heirarchies': a case study of power relations in an architecture firm.
- Author
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Brown AD, Kornberger M, Clegg SR, and Carter C
- Abstract
In this article we investigate how power relates to the production of creative identities and outcomes. We report on an in-depth case study of an award-winning creative architecture firm. Our data show how talk about creativity and the creative identities of architects can be analysed as effects of power. Theoretically, our study represents an investigation into the disciplining of professional architects' discourse about their selves, their organization, and their work. This article adds to debates on creative industries, demonstrating that creativity is deeply embedded in organizationally based relations of power. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
39. Cardiovascular abnormalities in patients with major depressive disorder: autonomic mechanisms and implications for treatment.
- Author
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Brown AD, Barton DA, Lambert GW, Brown, Alex D H, Barton, David A, and Lambert, Gavin W
- Abstract
This article provides a detailed review of the association of major depression with coronary heart disease (CHD), examines the biological variables underpinning the linkage and discusses the clinical implications for treatment. When considering the co-morbidity between major depressive disorder (MDD) and CHD it is important to differentiate between (i) the prevalence and impact of MDD in those with existing CHD and (ii) MDD as a risk factor for the development of CHD. Whether the same biological mechanisms are at play in these two instances remains unknown. Depression is common in patients with CHD. Importantly, depression in these patients increases mortality. There is also consistent evidence that MDD is a risk factor for the development of CHD. The relative risk of developing CHD is proportional to the severity of depression and is independent of smoking, obesity, hypercholesterolaemia, diabetes mellitus and hypertension. There is a clear need to identify the underlying neurochemical mechanisms responsible for MDD and their linkage to the heart and vascular system. Of particular interest are activation of stress pathways, including both the sympathetic nervous system and hypothalamic-pituitary-adrenal axis, and inflammatory-mediated atherogenesis. Elevated sympathetic activity, reduced heart rate variability and increased plasma cortisol levels have been documented in patients with MDD. In addition to direct effects on the heart and vasculature, activation of stress pathways may also be associated with increased release of inflammatory cytokines such as interleukin-6 and tumour necrosis factor-alpha. Elevated levels of C-reactive protein are commonly observed in patients with MDD. The majority of investigations examining treatment of depression following myocardial infarction have focused on safety and efficacy; there is little evidence to indicate that treating depression in these patients improves survival. Given that strategies for preventive therapy remain incompletely formulated, future research should focus on generating a better understanding of the neurobiology of MDD and heart disease as a basis for rational and effective therapy. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
40. Working identities? Antagonistic discursive resources and managerial identity.
- Author
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Clarke CA, Brown AD, and Hailey VH
- Abstract
In this article, we analyse the principal antagonistic discourses on which managers in a large UK-based engineering company drew in their efforts to construct versions of their selves. Predicated on an understanding that subjectively construed discursive identities are available to individuals as in-progress narratives that are contingent and fragile, the research contribution we make is threefold. First, we argue that managers may draw on mutually antagonistic discursive resources in authoring conceptions of their selves. Second, we contend that rather than being relatively coherent or completely fluid and fragmented managers' identity narratives may incorporate contrasting positions or antagonisms. Third, we show that managers' identity work constituted a continuing quest to (re)-author their selves as moral beings. Antagonisms in managers' identities, we suggest, may appropriately be analysed as the complex and ambiguous effects of organizationally based disciplinary practices and individuals' discursive responses to them. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
41. Making sense of sensemaking narratives.
- Author
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Brown AD, Stacey P, and Nandhakumar J
- Subjects
TEAMS in the workplace ,GROUP decision making ,SENSEMAKING theory (Communication) ,NARRATIVE inquiry (Research method) ,SOCIAL perception ,COMMUNICATIONS research - Abstract
This article analyses the agreed and discrepant sensemaking of members of a project team. Embedded in a narratological approach to sensemaking research, we argue that before scholars may be able to understand in detail how agreements are reached and action becomes coordinated, we need first to take seriously the proposition that sensemaking occurs in the context of individuals' idiosyncratic efforts at identity construction. This, we suggest, means attending to the narratives that actors tell about their work and self both for others and their selves. The key research contribution that we make is to demonstrate how work on `impression management' and `attributional egotism' may be employed in order to account for discrepant sensemaking. This is important in the context of a literature that has left relatively unexplored the reasons why people interpret differently experiences they have in common. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
42. Nurse staffing and system integration and change indicators in acute care hospitals: evidence from a balanced scorecard.
- Author
-
Hall LM, Peterson J, Baker GR, Brown AD, Pink GH, McKillop I, Daniel I, and Pedersen C
- Published
- 2008
- Full Text
- View/download PDF
43. Comparing patient reports about hospital care across a Canadian-US border.
- Author
-
Brown AD, Sandoval GA, Murray M, Boissonnault B, Brown, Adalsteinn D, Sandoval, Guillermo A, Murray, Michael, and Boissonnault, Bruce
- Abstract
Objective: To compare patient reports about hospital care between western New York State and southern Ontario using a random intercept model.Method: Cross-sectional survey of 3923 patients who received medical or surgical care between August and October 2004 at 28 hospitals (14 hospitals per jurisdiction). Thirty-five questions were combined to calculate eight indicators with scores ranging from 0 to 100 (best care experience). For each indicator, a model was built where the region (western New York vs. southern Ontario) was included as a fixed effect with hospital as random within region. A number of patient characteristics were also included as fixed effects.Results: The effect of the region was statistically significant (P < 0.05) only for the models predicting the 'continuity and transition', 'involvement of family' and 'physical comfort' indicator scores. The differences were 10.66, 4.05 and -3.23 points, respectively. In all three models, the random intercepts were not statistically significant, indicating that the differences above did not vary by hospitals. The model predicting 'overall impression' scores, however, showed a random intercept statistically significant (P = 0.026). The individual-level explained proportion of variance ranged from 5.68 to 11.22%, and the hospital-within-region-level explained proportion of variance ranged from 2.19 to 52.28%.Conclusion: The difference observed on the 'continuity and transition' indicator might be the only one somewhat meaningful, and might be explained by health maintenance organization reimbursements' mechanisms and hospital quality improvement initiatives available in western New York, as well as by the fact that occupancy rates in western New York border the 60% compared with the 95% in southern Ontario. [ABSTRACT FROM AUTHOR]- Published
- 2008
44. 'Ethics' as a discursive resource for identity work.
- Author
-
Kornberger M and Brown AD
- Subjects
NONPROFIT organizations ,GROUP identity ,DISCURSIVE practices ,NARRATIVES ,DELEGATION of authority ,BUSINESS ethics ,ETHICS - Abstract
This article analyses how participants in a not-for-profit service organization (the 'Incubator') drew on understandings of 'ethics' in order to make sense of their individual and collective selves. Identities are theorized as being constituted within discursive regimes, and notions of ethics are conceived as discursive resources on which individuals and groups may draw in their attempts to author versions of their self and organizational narratives. We show how conceptions of ethics were a rich vein on which organizational members drew to elaborate narratives that legitimated particular modes of working and which cohered an otherwise quite disparate community of individuals. The research contribution of this article is twofold. First, we discuss how a discourse focused on ethics may be a strategic resource for identity work. Second, we analyse how talk and writing about issues of ethics are implicated in relations of power and ongoing struggles for control over organizations conceived as discursive spaces. In so doing, this article advances our understanding of ethics as discursively complex constructions, which require the micro-analysis of language practices in situated contexts for action [ABSTRACT FROM AUTHOR]
- Published
- 2007
- Full Text
- View/download PDF
45. Effects of acetazolamide on ventilatory, cerebrovascular, and pulmonary vascular responses to hypoxia.
- Author
-
Teppema LJ, Balanos GM, Steinback CD, Brown AD, Foster GE, Duff HJ, Leigh R, Poulin MJ, Teppema, Luc J, Balanos, George M, Steinback, Craig D, Brown, Allison D, Foster, Glen E, Duff, Henry J, Leigh, Richard, and Poulin, Marc J
- Abstract
Rationale: Acute mountain sickness (AMS) may affect individuals who (rapidly) ascend to altitudes higher than 2,000-3,000 m. A more serious consequence of rapid ascent may be high-altitude pulmonary edema, a hydrostatic edema associated with increased pulmonary capillary pressures. Acetazolamide is effective against AMS, possibly by increasing ventilation and cerebral blood flow (CBF). In animals, it inhibits hypoxic pulmonary vasoconstriction.Objectives: We examined the influence of acetazolamide on the response to hypoxia of ventilation, CBF, and pulmonary vascular resistance (PVR).Methods: In this double-blind, placebo-controlled, randomized study, nine subjects ingested 250 mg acetazolamide every 8 h for 3 d. On the fourth test day, we measured the responses of ventilation, PVR, and CBF to acute isocapnic hypoxia (20 min) and sustained poikilocapnic hypoxia (4 h). Ventilation was measured with pneumotachography. Hypoxia was achieved with dynamic end-tidal forcing. The maximum pressure difference across the tricuspid valve (DeltaPmax, a good index of PVR) was measured with Doppler echocardiography. CBF was measured by transcranial Doppler ultrasound.Results: In normoxia, acetazolamide increased ventilation and reduced DeltaPmax, but did not influence CBF. The ventilatory and CBF responses to acute isocapnic hypoxia were unaltered, but the rise in DeltaPmax was reduced by 57%. The increase in DeltaPmax by sustained poikilocapnic hypoxia observed after placebo was reduced by 34% after acetazolamide, the ventilatory response was increased, but the CBF response remained unaltered.Conclusions: Acetazolamide has complex effects on ventilation, PVR, and CBF that converge to optimize brain oxygenation and may be a valuable means to prevent/treat high-altitude pulmonary edema. [ABSTRACT FROM AUTHOR]- Published
- 2007
- Full Text
- View/download PDF
46. Development of quality indicators for colorectal cancer surgery, using a 3-step modified Delphi approach.
- Author
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Gagliardi AR, Simunovic M, Langer B, Stern H, and Brown AD
- Abstract
BACKGROUND: Little performance measurement has been undertaken in the area of oncology, particularly for surgery, which is a pivotal event in the continuum of cancer care. This work was conducted to develop indicators of quality for colorectal cancer surgery, using a 3-step modified Delphi approach. METHODS: A multidisciplinary panel, comprising surgical and methodological co-chairs, 9 surgeons, a medical oncologist, a radiation oncologist, a nurse and a pathologist, reviewed potential indicators extracted from the medical literature through 2 consecutive rounds of rating followed by consensus discussion. The panel then prioritized the indicators selected in the previous 2 rounds. RESULTS: Of 45 possible indicators that emerged from 30 selected articles, 15 were prioritized by the panel as benchmarks for assessing the quality of surgical care. The 15 indicators represent 3 levels of measurement (provincial/regional, hospital, individual provider) across several phases of care (diagnosis, surgery, adjuvant therapy, pathology and follow-up), as well as broad measures of access and outcome. The indicators selected by the panel were more often supported by evidence than those that were discarded. CONCLUSIONS: This project represents a unique initiative, and the results may be applicable to colorectal cancer surgery in any jurisdiction. [ABSTRACT FROM AUTHOR]
- Published
- 2005
47. Cardiopulmonary bypass has minimal effects on the pharmacokinetics of fentanyl in adults.
- Author
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Hudson RJ, Thomson IR, Jassal R, Peterson DJ, Brown AD, Freedman JI, Hudson, Robert J, Thomson, Ian R, Jassal, Rajive, Peterson, David J, Brown, Aaron D, and Freedman, Jeffrey I
- Published
- 2003
48. A narratological approach to understanding processes of organizing in a UK hospital.
- Author
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Currie G and Brown AD
- Subjects
PUBLIC health ,HEALTH services administration ,MIDDLE managers ,POLYSEMY ,HOSPITALS - Abstract
This article outlines a narratological approach to understanding how middle managers and senior managers in a UK National Health Service (NHS) hospital made sense of the introduction of a series of interventions, led by senior managers. The research contribution this article makes is fourfold. First, it illustrates the role of individual and group narratives in processes of collective sensemaking. Second, it discusses the importance of work narratives in the efforts of individuals and groups to define their shared identities. Third, it outlines a view of organizations as storytelling milieux in which group narratives play important hegemonic and legitimatory roles. Finally, our focus on narratives, and the plurivocal understandings of actions and events they often encompass, is, we maintain, one useful means by which polysemy can be read back into case study research. [ABSTRACT FROM AUTHOR]
- Published
- 2003
- Full Text
- View/download PDF
49. Current approaches to cervical-cancer screening.
- Author
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Sawaya GF, Brown AD, Washington AE, and Garber AM
- Published
- 2001
50. HARD CASES MAKE BAD LAWS: AN ANALYSIS OF STATE-SPONSORED TERRORISM AND ITS REGULATION UNDER INTERNATIONAL LAW.
- Author
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Brown, Ad`ele C.
- Published
- 1997
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