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LOWLAND MAYA GENESIS: THE LATE ARCHAIC TO LATE EARLY FORMATIVE TRANSITION IN THE UPPER BELIZE RIVER VALLEY
- Jaime J. Awe, Claire E. Ebert, W. James Stemp, M. Kathryn Brown, Lauren A. Sullivan, James F. Garber
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- Journal:
- Ancient Mesoamerica / Volume 32 / Issue 3 / Fall 2021
- Published online by Cambridge University Press:
- 14 December 2021, pp. 519-544
- Print publication:
- Fall 2021
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The transition from the Late Archaic to the Late Early Formative period witnessed profound changes in the Maya lowlands. In addition to the establishment of the first settlements and agrarian communities, this critical phase of cultural development heralded the introduction of ceramics, saw changes in lithic technology, gave rise to inter-regional trade and exchange, and witnessed the introduction of a complex symbolic system expressed on portable objects. In this article, we synthesize data collected over the past several decades by various archaeological projects in western Belize to provide an overview of the cultural changes that unfolded during the Late Archaic to Late Early Formative period in the Upper Belize River Valley. We also provide evidence indicating that it was during this critical transitional period that we begin to see the establishment of several cultural traditions that became uniquely lowland Maya.
Descriptive evaluation of antibody responses to severe acute respiratory coronavirus virus 2 (SARS-CoV-2) infection in plasma and gingival crevicular fluid in a nursing home cohort—Arkansas, June–August 2020
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- Nicole E. Brown, Amanda K. Lyons, Amy J. Schuh, Megan M. Stumpf, Jennifer L. Harcourt, Azaibi Tamin, Mohammad Ata Ur Rasheed, Lisa Mills, Sandra N. Lester, Natalie J. Thornburg, Kenny Nguyen, Veronica Costantini, Jan Vinjé, Jennifer Y. Huang, Sarah E. Gilbert, Paige Gable, Susan Bollinger, Sarah Sabour, Elizabeth Beshearse, Diya Surie, Caitlin Biedron, Christopher J. Gregory, Nakia S. Clemmons, Brett Whitaker, Melissa M. Coughlin, Kathryn A. Seely, Kelley Garner, Trent Gulley, Tafarra Haney, Atul Kothari, Naveen Patil, Alison Laufer Halpin, L. Clifford McDonald, Preeta K. Kutty, Allison C. Brown
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- Journal:
- Infection Control & Hospital Epidemiology / Volume 43 / Issue 11 / November 2022
- Published online by Cambridge University Press:
- 22 November 2021, pp. 1610-1617
- Print publication:
- November 2022
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Objective:
To characterize and compare severe acute respiratory coronavirus virus 2 (SARS-CoV-2)–specific immune responses in plasma and gingival crevicular fluid (GCF) from nursing home residents during and after natural infection.
Design:Prospective cohort.
Setting:Nursing home.
Participants:SARS-CoV-2–infected nursing home residents.
Methods:A convenience sample of 14 SARS-CoV-2–infected nursing home residents, enrolled 4–13 days after real-time reverse transcription polymerase chain reaction diagnosis, were followed for 42 days. After diagnosis, plasma SARS-CoV-2–specific pan-Immunoglobulin (Ig), IgG, IgA, IgM, and neutralizing antibodies were measured at 5 time points, and GCF SARS-CoV-2–specific IgG and IgA were measured at 4 time points.
Results:All participants demonstrated immune responses to SARS-CoV-2 infection. Among 12 phlebotomized participants, plasma was positive for pan-Ig and IgG in all 12 participants. Neutralizing antibodies were positive in 11 participants; IgM was positive in 10 participants, and IgA was positive in 9 participants. Among 14 participants with GCF specimens, GCF was positive for IgG in 13 participants and for IgA in 12 participants. Immunoglobulin responses in plasma and GCF had similar kinetics; median times to peak antibody response were similar across specimen types (4 weeks for IgG; 3 weeks for IgA). Participants with pan-Ig, IgG, and IgA detected in plasma and GCF IgG remained positive throughout this evaluation, 46–55 days after diagnosis. All participants were viral-culture negative by the first detection of antibodies.
Conclusions:Nursing home residents had detectable SARS-CoV-2 antibodies in plasma and GCF after infection. Kinetics of antibodies detected in GCF mirrored those from plasma. Noninvasive GCF may be useful for detecting and monitoring immunologic responses in populations unable or unwilling to be phlebotomized.
The Role of Zinc in Depressed Pregnant and Non-Pregnant Women: A Systematic Review and Meta-Analysis
- Nadine B. Page, Anna M. Brown, Erin Pascoe, Sally Braithwaite, Michelle L. Townsend, Jane S. Herbert, Hilary Davies, Kathryn H. Hart, J. Bernadette Moore
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- Journal:
- Proceedings of the Nutrition Society / Volume 79 / Issue OCE2 / 2020
- Published online by Cambridge University Press:
- 10 June 2020, E542
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Perinatal depression is a depressive illness that affects 10–15% of women in the UK with an estimated cost of £1.8 billion/year. Zinc deficiency is associated with the development of mood disorders and zinc supplementation has been shown to help reduce the symptoms of depression. Women who are pregnant and breastfeeding are at risk of lower levels of zinc because of the high demand from the developing and feeding baby. However, studies in the perinatal period are limited. With a long-term aim of designing a randomised controlled trial (RCT) to examine if zinc supplementation reduces depressive symptoms in pregnant and lactating women;the objective of this review was to systematically evaluate previous RCTs assessing zinc supplementation and depressive symptoms, in order to establish a zinc dosing regimen with regards to Galenic formulation, unit dose and frequency. The review was conducted by independent reviewers in accordance with PRISMA guidelines and is registered at Prospero (CRD42017059205). The Allied and Complimentary Medicine, CINAHL, Embase, MEDLINE, PsycINFO, PubMed, and Cochrane databases were searched since records began, with no restrictions, for intervention trials assessing Galenic formulation, unit dose and frequency of zinc supplementation to reduce the symptoms of depression. From a total of 66 identified records, 7 articles met the inclusion and exclusion criteria; all assessed the effect of zinc supplementation on mood. Risk of bias was independently assessed using the standard ‘Cochrane risk of bias tool’. Overall, 5 of the 7 papers were rated as high-quality trials; of the other two, one was rated poor and the other fair but both had a number of learning points. Preliminary findings indicate at the end of supplementing zinc, depression scores were reduced significantly. In one study, the Beck score decreased in the placebo group, but this reduction was not significant compared to the baseline. In two of the studies there was a significant correlation between serum zinc and self-reported mood questionnaires. Results also suggest that 25 mg zinc supplementation combined with antidepressant drugs can be effective in the treatment of major depression in women. This supports other work where researchers supplemented 25 mg of elemental zinc for 12 weeks or longer and found a reduction of symptoms in both pregnant and non-pregnant women. Thus, an early conclusion is that 25 mg of elemental zinc is an effective dose for improving low mood and is achievable in a trial setting.
FOUR PRECERAMIC POINTS NEWLY DISCOVERED IN BELIZE: A COMMENT ON STEMP ET AL. (2016:279–299) – CORRIGENDUM
- W. James Stemp, Jaime J. Awe, M. Kathryn Brown, Eleanor Harrison-Buck, Christophe G. B. Helmke, Gabriel D. Wrobel, Jason Yaeger
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- Journal:
- Latin American Antiquity / Volume 29 / Issue 2 / June 2018
- Published online by Cambridge University Press:
- 12 January 2018, p. 418
- Print publication:
- June 2018
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In the original publication of this article, the title was printed as “Four Preceramic Points Newly Discovered in Belize: A Comment on Stemp et al. (1996:279–299).” The article has been updated to the correct title. The authors apologize for this error.
FOUR PRECERAMIC POINTS NEWLY DISCOVERED IN BELIZE: A COMMENT ON STEMP ET AL. (2016:279–299)
- W. James Stemp, Jaime J. Awe, M. Kathryn Brown, Eleanor Harrison-Buck, Christophe G. B. Helmke, Gabriel D. Wrobel, Jason Yaeger
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- Journal:
- Latin American Antiquity / Volume 29 / Issue 2 / June 2018
- Published online by Cambridge University Press:
- 14 December 2017, pp. 394-397
- Print publication:
- June 2018
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Stemp et al. (2016) published data on 81 preceramic (Archaic) points from Belize, Central America. In this comment, we report four more chipped chert bifaces recently recovered in Belize (Figure 1). Based on metrics (Table 1), technology, and style, three are classified as Lowe and one as a Sawmill point (Kelly 1993; Lohse et al. 2006; Stemp et al. 2016).
The Use of LiDAR in Understanding the Ancient Maya Landscape: Caracol and Western Belize
- Arlen F. Chase, Diane Z. Chase, Jaime J. Awe, John F. Weishampel, Gyles Iannone, Holley Moyes, Jason Yaeger, M. Kathryn Brown
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- Journal:
- Advances in Archaeological Practice / Volume 2 / Issue 3 / August 2014
- Published online by Cambridge University Press:
- 16 January 2017, pp. 208-221
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The use of airborne LiDAR (Light Detection and Ranging) in western Belize, Central America, has revolutionized our understanding of the spatial dynamics of the ancient Maya. This technology has enabled researchers to successfully demonstrate the large-scale human modifications made to the ancient tropical landscape, providing insight on broader regional settlement. Before the advent of this laser-based technology, heavily forested cover prevented full coverage and documentation of Maya sites. Mayanists could not fully recover or document the extent of ancient occupation and could never be sure how representative their mapped and excavated samples were relative to ancient settlement. Employing LiDAR in tropical and subtropical environments, like that of the Maya, effectively provides ground, as well as forest cover information, leading to a much fuller documentation of the complexities involved in the ancient human-nature interface. Airborne LiDAR was first flown over a 200 km2 area of the archaeological site of Caracol, Belize, in April 2009. In April and May 2013 an additional 1,057 km2 were flown with LiDAR, permitting the contextualization of the city of Caracol within its broader region and polity. The use of this technology has transformed our understanding of regional archaeology in the Maya area.
Locating and Dating Sites Using Lidar Survey in a Mosaic Landscape in Western Belize
- Jason Yaeger, M. Kathryn Brown, Bernadette Cap
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- Journal:
- Advances in Archaeological Practice / Volume 4 / Issue 3 / August 2016
- Published online by Cambridge University Press:
- 16 January 2017, pp. 339-356
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We use the results of a high-resolution lidar survey to assess the advantages and limitations of archaeological applications of lidar data and address some of its methodological challenges. Our data come from the Mopan and Macal River valleys in western Belize, a region that includes several ancient Maya political centers and their hinterlands. Visual inspection of the lidar data has revealed many new sites and new features at previously mapped sites, and these findings significantly enhance our understanding of the valley's cultural history and political dynamics. By comparing data from prior systematic pedestrian surveys, visual and TPI analysis of the lidar data, and analysis of other remotely sensed data, we assess the limits of mound visibility in the lidar data and examine how vegetation and topographic factors impact those limits. We also present slope analysis as a useful tool for predicting whether mounds were constructed in the Preclassic period (1000 B.C.–A.D. 250) or the Classic period (A.D. 250–900).
Serum and erythrocyte folate status of New Zealand women of childbearing age following a countrywide voluntary programme by the baking industry to fortify bread with folic acid
- Kathryn E Bradbury, Sheila M Williams, Jim I Mann, Indrawati Oey, Cindy Aitchison, Winsome Parnell, Liz Fleming, Rachel C Brown, C Murray Skeaff
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- Journal:
- Public Health Nutrition / Volume 19 / Issue 16 / November 2016
- Published online by Cambridge University Press:
- 07 June 2016, pp. 2897-2905
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Objective
To estimate the folate status of New Zealand women of childbearing age following the introduction, in 2010, of a new voluntary folic acid fortification of bread programme.
DesignThe 2011 Folate and Women’s Health Survey was a cross-sectional survey of women aged 18–44 years carried out in 2011. The survey used a stratified random sampling technique with the Electoral Roll as the sampling frame. Women were asked about consumption of folic-acid-fortified breads and breakfast cereals in a telephone interview. During a clinic visit, blood was collected for serum and erythrocyte folate measurement by microbiological assay.
SettingA North Island (Wellington) and South Island (Dunedin) city centre in New Zealand.
SubjectsTwo hundred and eighty-eight women, of whom 278 completed a clinic visit.
ResultsGeometric mean serum and erythrocyte folate concentrations were 30 nmol/l and 996 nmol/l, respectively. Folate status was 30–40 % higher compared with women of childbearing age sampled as part of a national survey in 2008/09, prior to the introduction of the voluntary folic acid bread fortification programme. In the 2011 Folate and Women’s Health Survey, reported consumption of fortified bread and fortified breakfast cereal in the past week was associated with 25 % (P=0·01) and 15 % (P=0·04) higher serum folate concentrations, respectively.
ConclusionsSerum and erythrocyte folate concentrations have increased in New Zealand women of childbearing age since the number of folic-acid-fortified breads was increased voluntarily in 2010. Consumption of fortified breads and breakfast cereals was associated with a higher folate status.
Curcumin and cognition: a randomised, placebo-controlled, double-blind study of community-dwelling older adults
- Stephanie R. Rainey-Smith, Belinda M. Brown, Hamid R. Sohrabi, Tejal Shah, Kathryn G. Goozee, Veer B. Gupta, Ralph N. Martins
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- Journal:
- British Journal of Nutrition / Volume 115 / Issue 12 / 28 June 2016
- Published online by Cambridge University Press:
- 22 April 2016, pp. 2106-2113
- Print publication:
- 28 June 2016
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Curcumin therapy in animals has produced positive cognitive and behavioural outcomes; results of human trials, however, have been inconsistent. In this study, we report the results of a 12-month, randomised, placebo-controlled, double-blind study that investigated the ability of a curcumin formulation to prevent cognitive decline in a population of community-dwelling older adults. Individuals (n 96) ingested either placebo or 1500 mg/d BiocurcumaxTM for 12 months. A battery of clinical and cognitive measures was administered at baseline and at the 6-month and 12-month follow-up assessments. A significant time×treatment group interaction was observed for the Montreal Cognitive Assessment (repeated-measures analysis; time×treatment; F=3·85, P<0·05). Subsequent analysis revealed that this association was driven by a decline in function of the placebo group at 6 months that was not observed in the curcumin treatment group. No differences were observed between the groups for all other clinical and cognitive measures. Our findings suggest that further longitudinal assessment is required to investigate changes in cognitive outcome measures, ideally in conjunction with biological markers of neurodegeneration.
Crisis Counselors’ Perceptions and Assessment of Suicidal Behavior Among Hurricane Survivors Receiving Crisis Counseling Services
- Lisa M. Brown, Julie L. Framingham, Kathryn A. Frahm, Laurie D. Wolf
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- Journal:
- Disaster Medicine and Public Health Preparedness / Volume 9 / Issue 3 / June 2015
- Published online by Cambridge University Press:
- 21 April 2015, pp. 291-300
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Objective
The aims of this study were to assess the awareness of risk for suicidal behaviors and perspectives of Project Recovery counselors who provided crisis counseling services to hurricane survivors.
MethodsThe Short Posttraumatic Stress Disorder Rating Interview–Extended, a quantitative disaster mental health measure, was used to assess distress and dysfunction to the recent hurricanes. Project Recovery counselor data were collected through a 22-item qualitative interview.
ResultsSeven out of 207 clients (3.4%) endorsed the quantitative item measuring suicidal ideation. Clients who reported suicidal ideation had significantly higher scores on items indicating a loss of enjoyment, feelings of depression, feeling less able to handle stress, and other mental health items. Counselor responses fell into 5 major themes: Assessment and Action, Client Characteristics, Services, Counselor Training and Preparedness, and Future Directions.
ConclusionsSuicidal behavior is a serious mental health emergency, yet it remains a challenging issue as suicidal behaviors are complex and disaster survivors with suicidal ideation may experience intense psychological reactions to the event. In order to provide competent care to survivors experiencing suicidal thoughts or behaviors, the need for counselors to receive adequate training in suicide assessment and management is essential. (Disaster Med Public Health Preparedness. 2015;9:291–300)
Cognitive Vulnerabilities for Depression and Anxiety in Childhood: Specificity of Anxiety Sensitivity and Rumination
- Hannah M. Brown, Richard Meiser-Stedman, Harriet Woods, Kathryn J. Lester
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- Journal:
- Behavioural and Cognitive Psychotherapy / Volume 44 / Issue 1 / January 2016
- Published online by Cambridge University Press:
- 11 November 2014, pp. 30-42
- Print publication:
- January 2016
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Background: Childhood anxiety and depression frequently co-occur. Exploring specificity in cognitive processes for anxiety and depression in childhood can provide insight into cognitive vulnerabilities contributing to the development of anxiety and depressive disorders and inform targeted psychological interventions. Anxiety sensitivity and rumination are robust cognitive vulnerabilities for anxiety and depression, respectively. However, despite conceptual similarities, they are rarely considered together within a single study. Aims: The current study explored specific and shared associations between anxiety sensitivity subscales and rumination and anxiety and depressive symptoms in unselected children. Method: Multiple regression analyses explored to what extent specific self-reported anxiety sensitivity subscales (physical, social and mental concerns) and rumination predicted anxiety and depressive symptoms in 147 unselected children, aged 7–11 years. Results: Physical and social concern subscales of anxiety sensitivity were specifically associated with anxiety, whilst rumination was specifically associated with depressive symptoms. The mental concerns subscale of anxiety sensitivity was independently associated with both anxiety and depressive symptoms. These associations were only partially mediated by rumination. Conclusions: Anxiety and depression in young people are characterized by specific and shared cognitions. Evidence for shared and specific associations between the cognitive vulnerabilities of anxiety sensitivity and rumination, and anxiety and depression highlight the utility of transdiagnostic research and confirm that cognitive therapies may benefit from targeting cognitive concerns relating specifically to the patient's presenting symptoms.
Contributors
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- By Tod C. Aeby, Melanie D. Altizer, Ronan A. Bakker, Meghann E. Batten, Anita K. Blanchard, Brian Bond, Megan A. Brady, Saweda A. Bright, Ellen L. Brock, Amy Brown, Ashley Carroll, Jori S. Carter, Frances Casey, Weldon Chafe, David Chelmow, Jessica M. Ciaburri, Stephen A. Cohen, Adrianne M. Colton, PonJola Coney, Jennifer A. Cross, Julie Zemaitis DeCesare, Layson L. Denney, Megan L. Evans, Nicole S. Fanning, Tanaz R. Ferzandi, Katie P. Friday, Nancy D. Gaba, Rajiv B. Gala, Andrew Galffy, Adrienne L. Gentry, Edward J. Gill, Philippe Girerd, Meredith Gray, Amy Hempel, Audra Jolyn Hill, Chris J. Hong, Kathryn A. Houston, Patricia S. Huguelet, Warner K. Huh, Jordan Hylton, Christine R. Isaacs, Alison F. Jacoby, Isaiah M. Johnson, Nicole W. Karjane, Emily E. Landers, Susan M. Lanni, Eduardo Lara-Torre, Lee A. Learman, Nikola Alexander Letham, Rachel K. Love, Richard Scott Lucidi, Elisabeth McGaw, Kimberly Woods McMorrow, Christopher A. Manipula, Kirk J. Matthews, Michelle Meglin, Megan Metcalf, Sarah H. Milton, Gaby Moawad, Christopher Morosky, Lindsay H. Morrell, Elizabeth L. Munter, Erin L. Murata, Amanda B. Murchison, Nguyet A. Nguyen, Nan G. O’Connell, Tony Ogburn, K. Nathan Parthasarathy, Thomas C. Peng, Ashley Peterson, Sarah Peterson, John G. Pierce, Amber Price, Heidi J. Purcell, Ronald M. Ramus, Nicole Calloway Rankins, Fidelma B. Rigby, Amanda H. Ritter, Barbara L. Robinson, Danielle Roncari, Lisa Rubinsak, Jennifer Salcedo, Mary T. Sale, Peter F. Schnatz, John W. Seeds, Kathryn Shaia, Karen Shelton, Megan M. Shine, Haller J. Smith, Roger P. Smith, Nancy A. Sokkary, Reni A. Soon, Aparna Sridhar, Lilja Stefansson, Laurie S. Swaim, Chemen M. Tate, Hong-Thao Thieu, Meredith S. Thomas, L. Chesney Thompson, Tiffany Tonismae, Angela M. Tran, Breanna Walker, Alan G. Waxman, C. Nathan Webb, Valerie L. Williams, Sarah B. Wilson, Elizabeth M. Yoselevsky, Amy E. Young
- Edited by David Chelmow, Virginia Commonwealth University, Christine R. Isaacs, Virginia Commonwealth University, Ashley Carroll, Virginia Commonwealth University
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- Book:
- Acute Care and Emergency Gynecology
- Published online:
- 05 November 2014
- Print publication:
- 30 October 2014, pp ix-xiv
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A Modified Sequential Organ Failure Assessment Score for Critical Care Triage
- Colin K. Grissom, Samuel M. Brown, Kathryn G. Kuttler, Jonathan P. Boltax, Jason Jones, Al R. Jephson, James F. Orme, Jr
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- Journal:
- Disaster Medicine and Public Health Preparedness / Volume 4 / Issue 4 / December 2010
- Published online by Cambridge University Press:
- 08 April 2013, pp. 277-284
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Objective: The Sequential Organ Failure Assessment (SOFA) score has been recommended for triage during a mass influx of critically ill patients, but it requires laboratory measurement of 4 parameters, which may be impractical with constrained resources. We hypothesized that a modified SOFA (MSOFA) score that requires only 1 laboratory measurement would predict patient outcome as effectively as the SOFA score.
Methods: After a retrospective derivation in a prospective observational study in a 24-bed medical, surgical, and trauma intensive care unit, we determined serial SOFA and MSOFA scores on all patients admitted during the 2008 calendar year and compared the ability to predict mortality and the need for mechanical ventilation.
Results: A total of 1770 patients (56% male patients) with a 30-day mortality of 10.5% were included in the study. Day 1 SOFA and MSOFA scores performed equally well at predicting mortality with an area under the receiver operating curve (AUC) of 0.83 (95% confidence interval 0.81-.85) and 0.84 (95% confidence interval 0.82-.85), respectively (P = .33 for comparison). Day 3 SOFA and MSOFA predicted mortality for the 828 patients remaining in the intensive care unit with an AUC of 0.78 and 0.79, respectively. Day 5 scores performed less well at predicting mortality. Day 1 SOFA and MSOFA predicted the need for mechanical ventilation on day 3, with an AUC of 0.83 and 0.82, respectively. Mortality for the highest category of SOFA and MSOFA score (>11 points) was 53% and 58%, respectively.
Conclusions: The MSOFA predicts mortality as well as the SOFA and is easier to implement in resource-constrained settings, but using either score as a triage tool would exclude many patients who would otherwise survive.
(Disaster Med Public Health Preparedness. 2010;4:277-284)
Notes on Contributors
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- By Chris Beyers, Amy Branam, Alan Brown, Mark Canada, Patricia A. Cunningham, Satwik Dasgupta, David Dowling, John Evelev, Michael J. Everton, Benjamin F. Fisher, Paul Fisher, Meghan A. Freeman, Christopher Gair, Andrea Goulet, Jonathan Hartmann, Kevin J. Hayes, Gregory Hays, Alvin Holm, Lindsey Hursh, James M. Hutchisson, Paul Christian Jones, Katherine Kim, Nathaniel Lewis, Bruce Mills, Travis Montgomery, Tara Moore, Bran Nicol, Philip Edward Phillips, Anne Boyd Rioux, Therese M. Rizzo, Kathryn K. Shinn, Heidi Silcox, Peter Swirski, Jonathan Taylor, John Tresch, Lois Davis Vines, Jeffrey Andrew Weinstock, Brett Zimmerman
- Edited by Kevin J. Hayes, University of Central Oklahoma
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- Book:
- Edgar Allan Poe in Context
- Published online:
- 05 November 2013
- Print publication:
- 29 October 2012, pp ix-xiv
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- By J. Todd Arnedt, Nazem Atassi, Judith Bebchuk, Devin L. Brown, Rickey E. Carter, Rick Chappell, William R. Clarke, Christopher S. Coffey, Peter G. Como, Merit Cudkowicz, Jeffrey Cummings, Gary R. Cutter, Gerald J. Dal Pan, E. Ray Dorsey, Susan S. Ellenberg, Jordan Elm, Changyong Feng, Elizabeth Fisher, Jacqueline A. French, Jean-Michel Germain, Joshua D. Grill, Robert G. Holloway, Karen C. Johnston, S. Claiborne Johnston, Cornelia L. Kamp, Russell Katz, Kathryn M. Kellogg, Karl Kieburtz, Scott Y. H. Kim, Jonathan Kimmelman, Bruce Levin, Michael P. McDermott, Eric A. Mann, John Markman, D. Troy Morgan, Gilmore N. O’Neill, Yuko Y. Palesch, John R. Pollard, R. Michael Poole, Mary E. Putt, Bemard Ravina, Richard A. Rudick, David Schoenfeld, Andrew D. Siderowf, Janet Wittes, Robert F. Woolson, Michael E. Yurcheshen
- Edited by Bernard Ravina, Jeffrey Cummings, Michael McDermott, R. Michael Poole
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- Book:
- Clinical Trials in Neurology
- Published online:
- 05 May 2012
- Print publication:
- 12 April 2012, pp ix-xii
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Processing Speed Delays Contribute to Executive Function Deficits in Individuals with Agenesis of the Corpus Callosum
- Elysa J. Marco, Kathryn M. Harrell, Warren S. Brown, Susanna S. Hill, Rita J. Jeremy, Joel H. Kramer, Elliott H. Sherr, Lynn K. Paul
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- Journal:
- Journal of the International Neuropsychological Society / Volume 18 / Issue 3 / May 2012
- Published online by Cambridge University Press:
- 06 March 2012, pp. 521-529
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Corpus callosum malformation and dysfunction are increasingly recognized causes of cognitive and behavioral disability. Individuals with agenesis of the corpus callosum (AgCC) offer unique insights regarding the cognitive skills that depend specifically upon callosal connectivity. We examined the impact of AgCC on cognitive inhibition, flexibility, and processing speed using the Color-Word Interference Test (CWIT) and Trail Making Test (TMT) from the Delis-Kaplan Executive Function System. We compared 36 individuals with AgCC and IQs within the normal range to 56 matched controls. The AgCC cohort was impaired on timed measures of inhibition and flexibility; however, group differences on CWIT Inhibition, CWIT Inhibition/Switching and TMT Number-Letter Switching appear to be largely explained by slow performance in basic operations such as color naming and letter sequencing. On CWIT Inhibition/Switching, the AgCC group was found to commit significantly more errors which suggests that slow performance is not secondary to a cautious strategy. Therefore, while individuals with agenesis of the corpus callosum show real deficits on tasks of executive function, this impairment appears to be primarily a consequence of slow cognitive processing. Additional studies are needed to investigate the impact of AgCC on other aspects of higher order cortical function. (JINS, 2012, 18, 521–529)
Experiments Probing Fundamental Mechanisms of Energetic Material Initiation and Ignition
- Christopher M. Berg, Kathryn E. Brown, Rusty W. Conner, Yuanxi Fu, Hiroki Fujiwara, Alexei Lagutchev, William L. Shaw, Xianxu Zheng, Dana D. Dlott
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- Journal:
- MRS Online Proceedings Library Archive / Volume 1405 / 2012
- Published online by Cambridge University Press:
- 16 February 2012, mrsf11-1405-y06-01
- Print publication:
- 2012
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Two fundamental processes associated with shock compression of energetic materials (EM) are initiation and ignition. Initiation occurs just behind a shock front and ignition occurs anywhere from a few nanoseconds to hundreds of nanoseconds later. Experiments are described that probe the fundamental mechanisms of these processes on relevant length and time scales: picosecond vibrational spectroscopy of nanometer thick layers of energetic materials (EM) with laser-driven shock waves, and nanosecond emission spectroscopy of micrometer thick layers of EM using laser-driven flyer plates.
Contributors
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- Book:
- The Cambridge Dictionary of Christianity
- Published online:
- 05 August 2012
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- 20 September 2010, pp xi-xliv
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Garbage of the Gods? Squatters, Refuse Disposal, and Termination Rituals among the Ancient Maya
- Travis W. Stanton, M. Kathryn Brown, Jonathan B. Pagliaro
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- Journal:
- Latin American Antiquity / Volume 19 / Issue 3 / September 2008
- Published online by Cambridge University Press:
- 20 January 2017, pp. 227-247
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- September 2008
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Differentiating the material patterning between domestic refuse from squatters and ceremonial trash generated from termination rituals has been difficult for Maya archaeologists. Rich floor assemblages, especially from elite contexts, have been interpreted as “decadent” squatter refuse by some researchers and the remains of abandonment rituals by others. The identification and separation of these classes of behavior are essential for interpretations of floor assemblages. In this paper, we examine data from numerous contexts, in order to contextualize the debate over the interpretation of these two models. Ethnoarchaeological, ethnohistoric, and archaeological data indicate that close scrutiny of the context and material composition of such deposits are needed to distinguish these very different classes of behavior.
Contributors
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- By Emily Abbey, Amelia Álvarez, Katia S. Amorim, Ayumu Arakawa, Guglielmo Bellelli, Shoshana Blum-Kulka, Steven D. Brown, Maria Alburquerque Candela, Jorge Castro-Tejerina, Nandita Chaudhary, Sang-Chin Choi, Michael Cole, William A. Corsaro, Alan Costall, Antonietta Curci, Agnes E. Dodds, Gerard Duveen, Yrjö Engeström, Silvia Español, William Mintz Fields, Alex Gillespie, Miguel Gonçalves, Michal Hamo, Gyuseog Han, Ulf Hedetoft, Sophie Hengl, Berit O. Johannesen, Kathryn A. Kavulich, Ayae Kido, Chung-Woon Kim, Jeanette A. Lawrence, Giovanna Leone, Keren Lilu, Eugene Matusov, David Middleton, Hazime Mizoguchi, Fathali M. Moghaddam, Piero Paolicchi, Adolfo Perinat, Pablo del Río, Cintia Rodríguez, Alberto Rosa, M. Clotilde Rossetti-Ferreira, João Salgado, Tatsuya Sato, E. Sue Savage-Rumbaugh, Pär Segerdahl, Jordi Serrallonga, Ana Paula S. Silva, Thomas Slunecko, Mark Smith, Noboru Takahashi, David Travieso, Jaan Valsiner, James V. Wertsch, Toshiya Yamamoto, Yuko Yasuda, Tania Zittoun
- Edited by Jaan Valsiner, Clark University, Massachusetts, Alberto Rosa, Universidad Autónoma de Madrid
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- Book:
- The Cambridge Handbook of Sociocultural Psychology
- Published online:
- 05 June 2012
- Print publication:
- 04 June 2007, pp xiii-xviii
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