19 results
Characteristics of healthcare personnel with SARS-CoV-2 infection: 10 emerging infections program sites in the United States, April 2020–December 2021
- Nora Chea, Taniece Eure, Rebecca Alkis Ramirez, Maria Zlotorzynska, Gregory T. Blazek, Joelle Nadle, Jane Lee, Christopher A. Czaja, Helen Johnston, Devra Barter, Melissa Kellogg, Catherine Emanuel, James Meek, Monica Brackney, Stacy Carswell, Stepy Thomas, Scott K. Fridkin, Lucy E. Wilson, Rebecca Perlmutter, Kaytlynn Marceaux-Galli, Ashley Fell, Sara Lovett, Sarah Lim, Ruth Lynfield, Sarah Shrum Davis, Erin C. Phipps, Marla Sievers, Ghinwa Dumyati, Christopher Myers, Christine Hurley, Erin Licherdell, Rebecca Pierce, Valerie L. S. Ocampo, Eric W. Hall, Christopher Wilson, Cullen Adre, Erika Kirtz, Tiffanie M. Markus, Kathryn Billings, Ian D Plumb, Glen R. Abedi, Jade James-Gist, Shelley S. Magill, Cheri T. Grigg
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- Journal:
- Infection Control & Hospital Epidemiology , First View
- Published online by Cambridge University Press:
- 21 May 2024, pp. 1-9
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Background:
Understanding characteristics of healthcare personnel (HCP) with SARS-CoV-2 infection supports the development and prioritization of interventions to protect this important workforce. We report detailed characteristics of HCP who tested positive for SARS-CoV-2 from April 20, 2020 through December 31, 2021.
Methods:CDC collaborated with Emerging Infections Program sites in 10 states to interview HCP with SARS-CoV-2 infection (case-HCP) about their demographics, underlying medical conditions, healthcare roles, exposures, personal protective equipment (PPE) use, and COVID-19 vaccination status. We grouped case-HCP by healthcare role. To describe residential social vulnerability, we merged geocoded HCP residential addresses with CDC/ATSDR Social Vulnerability Index (SVI) values at the census tract level. We defined highest and lowest SVI quartiles as high and low social vulnerability, respectively.
Results:Our analysis included 7,531 case-HCP. Most case-HCP with roles as certified nursing assistant (CNA) (444, 61.3%), medical assistant (252, 65.3%), or home healthcare worker (HHW) (225, 59.5%) reported their race and ethnicity as either non-Hispanic Black or Hispanic. More than one third of HHWs (166, 45.2%), CNAs (283, 41.7%), and medical assistants (138, 37.9%) reported a residential address in the high social vulnerability category. The proportion of case-HCP who reported using recommended PPE at all times when caring for patients with COVID-19 was lowest among HHWs compared with other roles.
Conclusions:To mitigate SARS-CoV-2 infection risk in healthcare settings, infection prevention, and control interventions should be specific to HCP roles and educational backgrounds. Additional interventions are needed to address high social vulnerability among HHWs, CNAs, and medical assistants.
9 - The Law and Practice of Advance Directives and End-of-Life Care in Malaysia
- from Part II - Semi-regulated Jurisdictions
- Edited by Daisy Cheung, The University of Hong Kong, Michael Dunn, National University of Singapore
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- Book:
- Advance Directives Across Asia
- Published online:
- 02 February 2023
- Print publication:
- 09 February 2023, pp 174-190
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Summary
This chapter considers the role of advance directives in Malaysia, beginning with a discussion of the legal principles that are likely to apply in the end-of-life decision-making context. We then examine the professional guidance on advance directives published by the Malaysian Medical Council and the Ministry of Health, and highlight points of concern that such guidance has failed to address. The chapter then turns to consideration of the limited empirical data on advance directive awareness in Malaysia, followed by a discussion of the various sociocultural factors that may influence the acceptance of advance directives, with a particular focus on the significant roles played by the family and physicians. Religion as a key influence is also explored in relation to Malaysian attitudes towards advance directives.
Characteristics of healthcare personnel who reported concerns related to PPE use during care of COVID-19 patients
- Nora Chea, Stephanie Tavitian, Cedric Brown, Taniece Eure, Rebecca Alkis, Gregory Blazek, Austin Penna, Joelle Nadle, Linda Frank, Christopher Czaja, Helen Johnston, Devra Barter, Kathleen Angell, Kristen Marshall, James Meek, Monica Brackney, Stacy Carswell, Stepy Thomas, Scott Fridkin, Lucy Wilson, Ashley Fell, Sara Lovett, Sarah Lim, Ruth Lynfield, Ruth SarahShrum, Erin C. Phipps, Marla Sievers, Ghinwa Dumyati, Cate Concannon, Kathryn McCullough, Woods, Sandhya Seshadri, Christopher Myers, Rebecca Pierce, Valerie Ocampo, Judith Guzman-Cottrill, Gabriela Escutia, Monika Samper, Sandra Pena, Cullen Adre, Tiffanie Markus, Kathryn Billings, Matthew Groenewold, Ronda Sinkowitz-Cochran, Shelley Magill, Cheri Grigg, Betsy Miller
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- Journal:
- Antimicrobial Stewardship & Healthcare Epidemiology / Volume 2 / Issue S1 / July 2022
- Published online by Cambridge University Press:
- 16 May 2022, pp. s8-s9
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Background: Healthcare facilities have experienced many challenges during the COVID-19 pandemic, including limited personal protective equipment (PPE) supplies. Healthcare personnel (HCP) rely on PPE, vaccines, and other infection control measures to prevent SARS-CoV-2 infections. We describe PPE concerns reported by HCP who had close contact with COVID-19 patients in the workplace and tested positive for SARS-CoV-2. Method: The CDC collaborated with Emerging Infections Program (EIP) sites in 10 states to conduct surveillance for SARS-CoV-2 infections in HCP. EIP staff interviewed HCP with positive SARS-CoV-2 viral tests (ie, cases) to collect data on demographics, healthcare roles, exposures, PPE use, and concerns about their PPE use during COVID-19 patient care in the 14 days before the HCP’s SARS-CoV-2 positive test. PPE concerns were qualitatively coded as being related to supply (eg, low quality, shortages); use (eg, extended use, reuse, lack of fit test); or facility policy (eg, lack of guidance). We calculated and compared the percentages of cases reporting each concern type during the initial phase of the pandemic (April–May 2020), during the first US peak of daily COVID-19 cases (June–August 2020), and during the second US peak (September 2020–January 2021). We compared percentages using mid-P or Fisher exact tests (α = 0.05). Results: Among 1,998 HCP cases occurring during April 2020–January 2021 who had close contact with COVID-19 patients, 613 (30.7%) reported ≥1 PPE concern (Table 1). The percentage of cases reporting supply or use concerns was higher during the first peak period than the second peak period (supply concerns: 12.5% vs 7.5%; use concerns: 25.5% vs 18.2%; p Conclusions: Although lower percentages of HCP cases overall reported PPE concerns after the first US peak, our results highlight the importance of developing capacity to produce and distribute PPE during times of increased demand. The difference we observed among selected groups of cases may indicate that PPE access and use were more challenging for some, such as nonphysicians and nursing home HCP. These findings underscore the need to ensure that PPE is accessible and used correctly by HCP for whom use is recommended.
Funding: None
Disclosures: None
Optimal management and valuation of a natural resource: the case of optimal harvesting
- M'hamed Gaïgi, Idris Kharroubi, Thomas Lim
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- Journal:
- Probability in the Engineering and Informational Sciences / Volume 37 / Issue 3 / July 2023
- Published online by Cambridge University Press:
- 11 March 2022, pp. 674-694
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In this paper, we consider the problem of sustainable harvesting. We explain how the manager maximizes his/her profit according to the quantity of natural resource available in a harvesting area and under the constraint of penalties and fines when the quota is exceeded. We characterize the optimal values and some optimal strategies using a verification result. We then show by numerical examples that this optimal strategy is better than naive ones. Moreover, we define a level of fines which insures the double objective of the sustainable harvesting: a remaining quantity of available natural resource to insure its sustainability and an acceptable income for the manager.
11 - Medical Products
- from Section II
- Edited by Jo. M. Martins, Indra Pathmanathan, David T. Tan, Shiang Cheng Lim, Pascale Allotey
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- Book:
- Systems Thinking Analyses for Health Policy and Systems Development
- Published online:
- 04 September 2021
- Print publication:
- 26 August 2021, pp 367-401
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Summary
Medical products confer enormous benefit to health but also have potential harmful effects, either through their inherent properties or through misuse and abuse. This chapter analyses the role of medical products in the Malaysian healthcare system over a 60-year period. It covers issues of access and affordability alongside those of safety and quality. The initial period focused on ensuring a reliable supply of medicines and vaccines through import, storage, distribution and dispensing. Concerns about safety led to the evolution of national registration of medicines and human resource and governance issues around building capacity for monitoring and enforcement. Subsequent development of the health system experienced growing capacity for local manufacture, appearance of counterfeit medicines in the marketplace, and required strengthening of regulatory systems through international collaboration. Also included are purchase effectiveness, cost of medicines and pricing mechanisms. Systems analysis highlights the conflict between cost of medicines and the advancement of Universal Health Care and illustrates the use of Right to Government use to reduce inequities in access.
Practices and activities among healthcare personnel with severe acute respiratory coronavirus virus 2 (SARS-CoV-2) infection working in different healthcare settings—ten Emerging Infections Program sites, April–November 2020
- Part of
- Nora Chea, Taniece Eure, Austin R. Penna, Cedric J. Brown, Joelle Nadle, Deborah Godine, Linda Frank, Christopher A. Czaja, Helen Johnston, Devra Barter, Betsy Feighner Miller, Katie Angell, Kristen Marshall, James Meek, Monica Brackney, Stacy Carswell, Stepy Thomas, Lucy E. Wilson, Rebecca Perlmutter, Kaytlynn Marceaux-Galli, Ashley Fell, Sarah Lim, Ruth Lynfield, Sarah Shrum Davis, Erin C. Phipps, Marla Sievers, Ghinwa Dumyati, Cathleen Concannon, Kathryn McCullough, Amy Woods, Sandhya Seshadri, Christopher Myers, Rebecca Pierce, Valerie L. S. Ocampo, Judith A. Guzman-Cottrill, Gabriela Escutia, Monika Samper, Sandra A. Pena, Cullen Adre, Matthew Groenewold, Nicola D. Thompson, Shelley S. Magill
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- Journal:
- Infection Control & Hospital Epidemiology / Volume 43 / Issue 8 / August 2022
- Published online by Cambridge University Press:
- 02 June 2021, pp. 1058-1062
- Print publication:
- August 2022
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Healthcare personnel with severe acute respiratory coronavirus virus 2 (SARS-CoV-2) infection were interviewed to describe activities and practices in and outside the workplace. Among 2,625 healthcare personnel, workplace-related factors that may increase infection risk were more common among nursing-home personnel than hospital personnel, whereas selected factors outside the workplace were more common among hospital personnel.
4398 A Computational Psychiatry Approach to Addiction Using Neuroeconomics Translated Across Species
- Brian Sweis, Jazmin Camchong, Samantha Abram, Ann Haynos, Sheila Specker, Kelvin Lim, Angus MacDonald, Mark Thomas, David Redish
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- Journal:
- Journal of Clinical and Translational Science / Volume 4 / Issue s1 / June 2020
- Published online by Cambridge University Press:
- 29 July 2020, p. 121
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OBJECTIVES/GOALS: Decision-making impairments in addiction can arise from dysfunction in distinct neural circuits. Such processes can be dissociated by measuring complex, computationally distinct behaviors within an economic framework. We aim to characterize computational changes conserved across models of addiction. METHODS/STUDY POPULATION: We used neuroeconomic tasks capable of dissociating neurally separable decision processes using behavioral analyses equally applicable to humans and rodents. We tested 12 human cocaine-users and 9 healthy controls on the Web-Surf task designed to match the rodent Restaurant Row task on which 27 mice were trained and then exposed to saline (n = 10), cocaine (n = 7), or morphine (n = 10). All subjects foraged for rewards (humans: entertaining videos; mice: food) of varying costs (1-30s delays) and subjective value (humans: genres; mice: flavors) by making serial accept or reject decisions while on a limited time budget, balancing the utility of wanting desirable rewards despite conflicting costs. RESULTS/ANTICIPATED RESULTS: When encountering unique offers for rewards with a delay above one’s willingness to wait, cocaine-treated mice like cocaine-exposed humans were less likely to appropriately reject economically disadvantageous offers. Furthermore, these mice and humans did so despite spending more time deliberating between future options. In contrast, morphine-treated mice displayed distinct impairments when given the opportunity to correct past mistakes, a process we previously demonstrated was uniquely sensitive to alterations in strength of synaptic connectivity of the infralimbic-accumbens shell circuit in mice. We anticipate human opioid-users will mirror these latter, computationally distinct findings. DISCUSSION/SIGNIFICANCE OF IMPACT: These data elucidate facets of addiction shared across species yet fundamentally distinct between disease subtypes. Our translational approach can help shed light on conserved pathophysiological mechanisms in order to identify novel diagnostic parameters and computational targets for intervention.
Catatonic features in children and adolescents with N-methyl-d-aspartate receptor antibody encephalitis
- Michael Eyre, Anya Kaushik, Elizabeth Barrett, Mary D. King, Thomas Pollak, Russell C. Dale, Susan Byrne, Ming Lim
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- Journal:
- BJPsych Open / Volume 6 / Issue 4 / July 2020
- Published online by Cambridge University Press:
- 06 July 2020, e71
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Catatonia is a psychomotor dysregulation syndrome of diverse aetiology, increasingly recognised as a prominent feature of N-methyl-d-aspartate receptor antibody encephalitis (NMDARE) in adults. No study to date has systematically assessed the prevalence and symptomatology of catatonia in children with NMDARE. We analysed 57 paediatric patients with NMDARE from the literature using the Bush-Francis Catatonia Rating Scale. Catatonia was common (occurring in 86% of patients), manifesting as complex clusters of positive and negative features within individual patients. It was both underrecognised and undertreated. Immunotherapy was the only effective intervention, highlighting the importance of prompt recognition and treatment of the underlying cause of catatonia.
Extended multiple feature-based classifications for adaptive loop filtering
- Part of
- Johannes Erfurt, Wang-Q Lim, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
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- Journal:
- APSIPA Transactions on Signal and Information Processing / Volume 8 / 2019
- Published online by Cambridge University Press:
- 14 November 2019, e28
- Print publication:
- 2019
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Recent progress in video compression is seemingly reaching its limits making it very hard to improve coding efficiency significantly further. The adaptive loop filter (ALF) has been a topic of interest for many years. ALF reaches high coding gains and has motivated many researchers over the past years to further improve the state-of-the-art algorithms. The main idea of ALF is to apply a classification to partition the set of all sample locations into multiple classes. After that, Wiener filters are calculated and applied for each class. Therefore, the performance of ALF essentially relies on how its classification behaves. In this paper, we extensively analyze multiple feature-based classifications for ALF (MCALF) and extend the original MCALF by incorporating sample adaptive offset filtering. Furthermore, we derive new block-based classifications which can be applied in MCALF to reduce its complexity. Experimental results show that our extended MCALF can further improve compression efficiency compared to the original MCALF algorithm.
Planetary science and exploration in the deep subsurface: results from the MINAR Program, Boulby Mine, UK
- Samuel J. Payler, Jennifer F. Biddle, Andrew J. Coates, Claire R. Cousins, Rachel E. Cross, David C. Cullen, Michael T. Downs, Susana O. L. Direito, Thomas Edwards, Amber L. Gray, Jac Genis, Matthew Gunn, Graeme M. Hansford, Patrick Harkness, John Holt, Jean-Luc Josset, Xuan Li, David S. Lees, Darlene S. S. Lim, Melissa Mchugh, David Mcluckie, Emma Meehan, Sean M. Paling, Audrey Souchon, Louise Yeoman, Charles S. Cockell
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- Journal:
- International Journal of Astrobiology / Volume 16 / Issue 2 / April 2017
- Published online by Cambridge University Press:
- 20 April 2016, pp. 114-129
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The subsurface exploration of other planetary bodies can be used to unravel their geological history and assess their habitability. On Mars in particular, present-day habitable conditions may be restricted to the subsurface. Using a deep subsurface mine, we carried out a program of extraterrestrial analog research – MINe Analog Research (MINAR). MINAR aims to carry out the scientific study of the deep subsurface and test instrumentation designed for planetary surface exploration by investigating deep subsurface geology, whilst establishing the potential this technology has to be transferred into the mining industry. An integrated multi-instrument suite was used to investigate samples of representative evaporite minerals from a subsurface Permian evaporite sequence, in particular to assess mineral and elemental variations which provide small-scale regions of enhanced habitability. The instruments used were the Panoramic Camera emulator, Close-Up Imager, Raman spectrometer, Small Planetary Linear Impulse Tool, Ultrasonic drill and handheld X-ray diffraction (XRD). We present science results from the analog research and show that these instruments can be used to investigate in situ the geological context and mineralogical variations of a deep subsurface environment, and thus habitability, from millimetre to metre scales. We also show that these instruments are complementary. For example, the identification of primary evaporite minerals such as NaCl and KCl, which are difficult to detect by portable Raman spectrometers, can be accomplished with XRD. By contrast, Raman is highly effective at locating and detecting mineral inclusions in primary evaporite minerals. MINAR demonstrates the effective use of a deep subsurface environment for planetary instrument development, understanding the habitability of extreme deep subsurface environments on Earth and other planetary bodies, and advancing the use of space technology in economic mining.
PORTFOLIO OPTIMIZATION IN A DEFAULT MODEL UNDER FULL/PARTIAL INFORMATION
- Thomas Lim, Marie-Claire Quenez
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- Journal:
- Probability in the Engineering and Informational Sciences / Volume 29 / Issue 4 / October 2015
- Published online by Cambridge University Press:
- 14 July 2015, pp. 565-587
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In this paper, we consider a financial market with an asset exposed to a risk inducing a jump in the asset price, and which can still be traded after the default time. We use a default-intensity modeling approach, and address in this incomplete market context the problem of maximization of expected utility from terminal wealth for logarithmic, power and exponential utility functions. We study this problem as a stochastic control problem both under full and partial information. Our contribution consists of showing that the optimal strategy can be obtained by a direct approach for the logarithmic utility function, and the value function for the power (resp. exponential) utility function can be determined as the minimal (resp. maximal) solution of a backward stochastic differential equation. For the partial information case, we show how the problem can be divided into two problems: a filtering problem and an optimization problem. We also study the indifference pricing approach to evaluate the price of a contingent claim in an incomplete market and the information price for an agent with insider information.
The Love of Money and Pay Level Satisfaction: Measurement and Functional Equivalence in 29 Geopolitical Entities around the World
- Part of
- Thomas Li-Ping Tang, Toto Sutarso, Adebowale Akande, Michael W. Allen, Abdulgawi Salim Alzubaidi, Mahfooz A. Ansari, Fernando Arias-Galicia, Mark G. Borg, Luigina Canova, Brigitte Charles-Pauvers, Bor-Shiuan Cheng, Randy K. Chiu, Linzhi Du, Ilya Garber, Consuelo Garcia De La Torre, Rosario Correia Higgs, Abdul Hamid Safwat Ibrahim, Chin-Kang Jen, Ali Mahdi Kazem, Kilsun Kim, Vivien Kim Geok Lim, Roberto Luna-Arocas, Eva Malovics, Anna Maria Manganelli, Alice S. Moreira, Anthony Ugochukwu Obiajulu Nnedum, Johnsto E. Osagie, AAhad M. Osman-Gani, Francisco Costa Pereira, Ruja Pholsward, Horia D. Pitariu, Marko Polic, Elisaveta Sardzoska, Petar Skobic, Allen F. Stembridge, Theresa Li-Na Tang, Thompson Sian Hin Teo, Marco Tombolani, Martina Trontelj, Caroline Urbain, Peter Vlerick, translated by 汤立平, translated by 郑伯垠, translated by 赵其琨, translated by 杜林致, translated by 任金﨓, translated by 林金玉, translated by 汤张面娜, translated by 赵善兴
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- Journal:
- Management and Organization Review / Volume 2 / Issue 3 / November 2006
- Published online by Cambridge University Press:
- 02 February 2015, pp. 423-452
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Demonstrating the equivalence of constructs is a key requirement for cross-cultural empirical research. The major purpose of this paper is to demonstrate how to assess measurement and functional equivalence or invariance using the 9-item, 3-factor Love of Money Scale (LOMS, a second-order factor model) and the 4-item, 1-factor Pay Level Satisfaction Scale (PLSS, a first-order factor model) across 29 samples in six continents (N = 5973). In step 1, we tested the configural, metric and scalar invariance of the LOMS and 17 samples achieved measurement invariance. In step 2, we applied the same procedures to the PLSS and nine samples achieved measurement invariance. Five samples (Brazil, China, South Africa, Spain and the USA) passed the measurement invariance criteria for both measures. In step 3, we found that for these two measures, common method variance was non-significant. In step 4, we tested the functional equivalence between the Love of Money Scale and Pay Level Satisfaction Scale. We achieved functional equivalence for these two scales in all five samples. The results of this study suggest the critical importance of evaluating and establishing measurement equivalence in cross-cultural studies. Suggestions for remedying measurement non-equivalence are offered.
Multilevel assessment of the neurobiological threat system in depressed adolescents: Interplay between the limbic system and hypothalamic–pituitary–adrenal axis
- Bonnie Klimes-Dougan, Lynn E. Eberly, Melinda Westlund Schreiner, Patrick Kurkiewicz, Alaa Houri, Amanda Schlesinger, Kathleen M. Thomas, Bryon A. Mueller, Kelvin O. Lim, Kathryn R. Cullen
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- Journal:
- Development and Psychopathology / Volume 26 / Issue 4pt2 / November 2014
- Published online by Cambridge University Press:
- 25 November 2014, pp. 1321-1335
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Integrative, multilevel approaches investigating neurobiological systems relevant to threat detection promise to advance understanding of the pathophysiology of major depressive disorder (MDD). In this study we considered key neuronal and hormonal systems in adolescents with MDD and healthy controls (HC). The goals of this study were to identify group differences and to examine the association of neuronal and hormonal systems. MDD and HC adolescents (N = 79) aged 12–19 years were enrolled. Key brain measures included amygdala volume and amygdala activation to an emotion face-viewing task. Key hormone measures included cortisol levels during a social stress task and during the brain scan. MDD and HC adolescents showed group differences on amygdala functioning and patterns of cortisol levels. Amygdala activation in response to emotional stimuli was positively associated with cortisol responses. In addition, amygdala volume was correlated with cortisol responses, but the pattern differed in depressed versus healthy adolescents, most notably for unmedicated MDD adolescents. The findings highlight the value of using multilevel assessment strategies to enhance understanding of pathophysiology of adolescent MDD, particularly regarding how closely related biological threat systems function together while undergoing significant developmental shifts.
Contributors
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- By Michael P. Alexander, Jean-Marie Annoni, Pascal Auzou, Philippe Azouvi, Sandra Black, Stephan Bohlhalter, Thomas Busigny, Lara Caeiro, Hugues Chabriat, Laurent Cohen, Alexandre Croquelois, Luc Defebvre, Stanislas Dehaene, Sebastian Dieguez, Diane Dupuy, José M. Ferro, Olivier Godefroy, Georg Goldenberg, Vladimir Hachinski, Maree Hackett, Hilde Hénon, Argye E. Hillis, Pierre Krolak-Salmon, Pierre Krystkowiak, Mansur A. Kutlubaev, Jany Lambert, Bernard Lechevalier, Claire Leclercq, Didier Leys, Chun Lim, Marie-Anne Mackowiak, Isabel P. Martins, Eugene Mayer, Gillian E. Mead, José G. Merino, Reto Meuli, Paige Moorhouse, Sylvain Moreau, David Nyenhuis, Florence Pasquier, Anne Peskine, Bertille Périn, Hervé Platel, Abid Qureshi, Marc D. Reichhart, Kenneth Rockwood, Bruno Rossion, Martine Roussel, Arnaud Saj, Donald T. Stuss, Pierre Thomas, Tim Vanbellingen, Fausto Viader, Alain Vighetto, Patrik Vuilleumier
- Edited by Olivier Godefroy
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- Book:
- The Behavioral and Cognitive Neurology of Stroke
- Published online:
- 05 March 2013
- Print publication:
- 28 February 2013, pp vii-x
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- By Carolin Biewer, Charles Boberg, Sean Bowerman, John Corbett, Felicity Cox, Hubert Devonish, Elizabeth Gordon, Ulrike Gut, Raymond Hickey, William A. Kretzschmar, Manfred Krug, Claudia Lange, Lisa Lim, Charles F. Meyer, Sallyanne Palethorpe, Anna Rosen, Josef Schmied, Daniel Schreier, Jane Stuart-Smith, Ewart A. C. Thomas, Ingrid Tieken-Boon van Ostade, Clive Upton
- Edited by Raymond Hickey, Universität Duisburg–Essen
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- Book:
- Standards of English
- Published online:
- 05 January 2013
- Print publication:
- 06 December 2012, pp xiv-xx
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- Edited by Chi Carmody, Frank J. Garcia, John Linarelli
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- Global Justice and International Economic Law
- Published online:
- 05 February 2012
- Print publication:
- 09 January 2012, pp ix-x
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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. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. 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- 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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Resistance to cracking of a stretchable semiconductor: Speed of crack propagation for varying energy release rate
- Sheng Liu, Hee C. Lim, Min Qu, John F. Federici, Gordon A. Thomas, Helena Gleskova, Sigurd Wagner
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- MRS Online Proceedings Library Archive / Volume 795 / 2003
- Published online by Cambridge University Press:
- 01 February 2011, U8.19
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- 2003
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We have measured and calculated the propagation velocity of successive cracks in a single sample of amorphous SiNx as a function of energy release rate. We have obtained the conditions for controlled, repetitive crack formation by using a substrate of compliant plastic that survives the cracking of a thin film formed on it. We have recorded the crack velocity curves using high-speed micro-photography using dark field illumination. Under uniform, uniaxial tensile strain, the films crack in an array of essentially straight, parallel lines, if the increase of the strain density is slow. We find reasonable agreement in the comparison of theory and experiment and find a linear relationship between the initial velocity and energy release rate threshold. Consequently, in cases where the theoretical agreement with the data is reasonable, the successive cracks show velocity curves that scale with each other.
Ceramics From Hydridopolysilazane
- Gary E. Legrow, Thomas F. Lim, J. Lipowitz, Ronald S. Reaoch
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- MRS Online Proceedings Library Archive / Volume 73 / 1986
- Published online by Cambridge University Press:
- 28 February 2011, 553
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- 1986
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The Advanced Ceramics Based on Polymer Processing Program is sponsored by the Defense Advanced Research Projects Agency (Materials Science Division). The objectives of the program include development of a family of Si-C, Si-N, and Si-C-N ceramic fibers which may be used for reinforcement in ceramic, metal and plastic matrices, and development of economical process technology for fabricating ceramic matrix composites with high fracture toughness, high temperature performance and no inherent limitations to forming complex shapes. Attainment of these objectives would circumvent two limitations of existing ceramic material technology - lack of design reliability due largely to catastrophic failure related to brittleness, and inability to fabricate complex shapes [1].