221 results on '"J Duckworth"'
Search Results
2. Oral FXIIa inhibitor KV998086 suppresses FXIIa and single chain FXII mediated kallikrein kinin system activation
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Allen C. Clermont, Nivetha Murugesan, Hannah J. Edwards, Daniel K. Lee, Natasha P. Bayliss, Edward J. Duckworth, Stephen J. Pethen, Sally L. Hampton, David Gailani, and Edward P. Feener
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factor XIIa inhibitor ,FXII zymogen ,hereditary angioedema ,kallikrein-kinin system ,HAE ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Background: The kallikrein kinin system (KKS) is an established pharmacological target for the treatment and prevention of attacks in hereditary angioedema (HAE). Proteolytic activities of FXIIa and single-chain Factor XII (FXII) zymogen contribute to KKS activation and thereby may play roles in both initiating and propagating HAE attacks. In this report, we investigated the effects of potent small molecule FXIIa inhibitors on FXIIa and single chain FXII enzymatic activities, KKS activation, and angioedema in mice.Methods: We examined the effects of 29 structurally distinct FXIIa inhibitors on enzymatic activities of FXIIa and a mutant single chain FXII with R334A, R343A and R353A substitutions (rFXII-T), that does not undergo zymogen conversion to FXIIa, using kinetic fluorogenic substrate assays. We examined the effects of a representative FXIIa inhibitor, KV998086, on KKS activation and both carrageenan- and captopril-induced angioedema in mice.Results: FXIIa inhibitors designed to target its catalytic domain also potently inhibited the enzymatic activity of rFXII-T and the pIC50s of these compounds linearly correlated for rFXIIa and rFXII-T (R2 = 0.93). KV998086, a potent oral FXIIa inhibitor (IC50 = 7.2 nM) inhibited dextran sulfate (DXS)-stimulated generation of plasma kallikrein and FXIIa, and the cleavage of high molecular weight kininogen (HK) in human plasma. KV998086 also inhibited rFXII-T mediated HK cleavage (p < 0.005) in plasma from FXII knockout mice supplemented with rFXII-T and stimulated with polyphosphate or DXS. Orally administered KV998086 protected mice from 1) captopril-induced Evans blue leakage in colon and laryngotracheal tissues and 2) blocked carrageenan-induced plasma HK consumption and paw edema.Conclusion: These findings show that small molecule FXIIa inhibitors, designed to target its active site, also inhibit the enzymatic activity of FXII zymogen. Combined inhibition of FXII zymogen and FXIIa may thereby suppress both the initiation and amplification of KKS activation that contribute to hereditary angioedema attacks and other FXII-mediated diseases.
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- 2023
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3. Hypomanic Defence: Investigating the relationship between depression, response styles and vulnerability to mania
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Connor Bryan O'Reilly, Dr Jay J. Duckworth, and Dr Victoria Vass
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Bipolar Spectrum Disorder ,Hypomanic Personality ,Depression ,Response Styles ,Rumination ,Mediation ,Mental healing ,RZ400-408 - Abstract
Background: The purpose of this study was to investigate the role of response styles to negative affect in mediating the relationship between depression and vulnerability to experiencing mania. Methods: A cross-sectional correlational design was utilized to examine 217 participants’ responses to an online survey comprising the Hypomanic Personality Scale (HPS), Response Styles Questionnaire (RSQ), and Personal Health Questionaire (PHQ-8). Results: After controlling for covariates (age, gender, ethnicity & depression), rumination, risk-taking and adaptive-coping were all positive predictors of hypomanic personality. Parallel mediation analysis demonstrated that rumination and risk-taking positively mediated the relationship between depression and hypomanic personality, whilst adaptive-coping negatively mediated this relationship. Serial mediation analysis revealed evidence for a sequence of causal mediators, demonstrating that rumination independently predicted risk-taking, which subsequently predicted hypomanic personality. Adaptive-coping continued to supress the relationship between depression and hypomanic personality after including risk-taking in the mediation analysis. Limitations: An unstratified volunteer sampling technique was utilised, introducing potential bias regarding the tendency to adopt maladaptive response styles. Utilising a three-factor response styles solution may lack face validity due to the wide variety of behaviours that encompass adaptive-coping strategies such as pleasant distraction and problem solving. Conclusions: Our findings support the maladaptive role of rumination and risk-taking in mediating the relationship between depression and vulnerability to experience mania, and further substantiates the protective function of adaptive-coping. Clinical interventions may endeavour to diminish the use of rumination and risk-taking, whilst promoting adaptive-coping strategies such as pleasant distraction and problem-solving.
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- 2023
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4. Use of a Data Repository to Identify Delirium as a Presenting Symptom of COVID-19 Infection in Hospitalized Adults: Cross-Sectional Cohort Pilot Study
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Laurence M Solberg, Laurie J Duckworth, Elizabeth M Dunn, Theresa Dickinson, Tanja Magoc, Urszula A Snigurska, Sarah E Ser, Brian Celso, Meghan Bailey, Courtney Bowen, Nila Radhakrishnan, Chirag R Patel, Robert Lucero, and Ragnhildur I Bjarnadottir
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Geriatrics ,RC952-954.6 - Abstract
BackgroundDelirium, an acute confusional state highlighted by inattention, has been reported to occur in 10% to 50% of patients with COVID-19. People hospitalized with COVID-19 have been noted to present with or develop delirium and neurocognitive disorders. Caring for patients with delirium is associated with more burden for nurses, clinicians, and caregivers. Using information in electronic health record data to recognize delirium and possibly COVID-19 could lead to earlier treatment of the underlying viral infection and improve outcomes in clinical and health care systems cost per patient. Clinical data repositories can further support rapid discovery through cohort identification tools, such as the Informatics for Integrating Biology and the Bedside tool. ObjectiveThe specific aim of this research was to investigate delirium in hospitalized older adults as a possible presenting symptom in COVID-19 using a data repository to identify neurocognitive disorders with a novel group of International Classification of Diseases, Tenth Revision (ICD-10) codes. MethodsWe analyzed data from 2 catchment areas with different demographics. The first catchment area (7 counties in the North-Central Florida) is predominantly rural while the second (1 county in North Florida) is predominantly urban. The Integrating Biology and the Bedside data repository was queried for patients with COVID-19 admitted to inpatient units via the emergency department (ED) within the health center from April 1, 2020, and April 1, 2022. Patients with COVID-19 were identified by having a positive COVID-19 laboratory test or a diagnosis code of U07.1. We identified neurocognitive disorders as delirium or encephalopathy, using ICD-10 codes. ResultsLess than one-third (1437/4828, 29.8%) of patients with COVID-19 were diagnosed with a co-occurring neurocognitive disorder. A neurocognitive disorder was present on admission for 15.8% (762/4828) of all patients with COVID-19 admitted through the ED. Among patients with both COVID-19 and a neurocognitive disorder, 56.9% (817/1437) were aged ≥65 years, a significantly higher proportion than those with no neurocognitive disorder (P
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- 2023
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5. Care Planning for Community-Dwelling People with Dementia: A Systematic Scoping Review
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Lee-Fay Low, Tanya J. Duckworth, Lauren King, Meredith Gresham, Lyn Phillipson, Yun-Hee Jeon, and Henry Brodaty
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Sociology and Political Science ,Health Policy ,Public Health, Environmental and Occupational Health ,Social Sciences (miscellaneous) - Abstract
People with dementia and their care partners report a lack of support, treatment, and information, fragmented services, and a lack of inclusion in decisions about their care. Care planning may address these issues; however, there is scarce literature on the process or benefits of care planning for people with dementia. This review describes the literature on care planning for community-dwelling people with dementia and their care partners. A systematic scoping methodology was followed to identify the research questions, identify relevant documents, select relevant documents, chart the data, and collate, summarise, and report the results. 31 full-text documents published between 2010 and May 2020 were identified and reviewed. Seven were guidelines, seven were expert opinion pieces, 11 were intervention studies, and six were descriptive studies. The topics and process of care planning varied depending on the service context (e.g., memory clinic, home care, and primary care). Care planning was presented as a component of case management in 15 papers. Six of the 11 intervention studies reported positive outcomes, one showed no improvement, and one did not evaluate outcomes for people with dementia or their care partners. Of the six with positive outcomes, four evaluated care planning in the context of care management. There is limited evidence that care planning alone improves outcomes for people with dementia and their care partners. It is unclear whether it may have benefits when combined with care management.
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- 2023
6. KVD900, an oral on-demand treatment for hereditary angioedema: Phase 1 study results
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Andreas Maetzel, Michael D. Smith, Edward J. Duckworth, Sally L. Hampton, Gian Marco De Donatis, Nivetha Murugesan, Louise J. Rushbrooke, Lily Li, Danielle Francombe, Edward P. Feener, and Christopher M. Yea
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Adult ,Male ,Cross-Over Studies ,Kininogen, High-Molecular-Weight ,Dose-Response Relationship, Drug ,Immunology ,Angioedemas, Hereditary ,Administration, Oral ,Healthy Volunteers ,Double-Blind Method ,Area Under Curve ,Humans ,Immunology and Allergy ,Tablets - Abstract
Attacks of hereditary angioedema are attributed to excessive plasma kallikrein (PKa) activity, which cleaves high-molecular-weight kininogen to generate the proinflammatory hormone bradykinin.We evaluated the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of KVD900, an orally administered inhibitor of PKa in healthy adults.KVD900 was administered in 2 clinical studies. In the first study, healthy adult men received single ascending doses (5-600 mg) of KVD900 capsule or placebo, single 100 mg doses of KVD900 tablet and KVD900 capsule (crossover), and single 600 mg doses of KVD900 (6 × 100 mg tablets) under fed and fasting conditions (crossover). In a second study, 3 cohorts of healthy adults were provided 600 mg of KVD900 tablets at 8-, 4-, and 2-hour intervals.Overall, 98 healthy participants received KVD900. All adverse events (AEs) were mild, except for a single moderate AE (headache). Exposure to KVD900 was proportional to dose. The PK parameters for KVD900 600 mg in tablet form under fasted conditions were mean (coefficient of variation) maximum plasma concentration of 6460 (22.0) ng/mL, mean (coefficient of variation) area under the curve (AUCThese phase 1 studies evaluated the PK/PD profile of KVD900, showing that KVD900 rapidly achieves near-complete PKa inhibition and is generally safe and well tolerated.NCT04349800.
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- 2022
7. Computational Notebooks as Co-Design Tools:Engaging Young Adults Living with Diabetes, Family Carers, and Clinicians with Machine Learning Models
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Amid Ayobi, Jacob Hughes, Christopher J Duckworth, Jakub J Dylag, Sam James, Paul Marshall, Matthew Guy, Anitha Kumaran, Adriane Chapman, Michael Boniface, and Aisling Ann O'Kane
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Engaging end user groups with machine learning (ML) models can help align the design of predictive systems with people's needs and expectations. We present a co-design study investigating the benefits and challenges of using computational notebooks to inform ML models with end user groups. We used a computational notebook to engage young adults, carers, and clinicians with an example ML model that predicted health risk in diabetes care. Through co-design workshops and retrospective interviews, we found that participants particularly valued using the interactive data visualisations of the computational notebook to scaffold multidisciplinary learning, anticipate benefits and harms of the example ML model, and create fictional feature importance plots to highlight care needs. Participants also reported challenges, from running code cells to managing information asymmetries and power imbalances. We discuss the potential of leveraging computational notebooks as interactive co-design tools to meet end user needs early in ML model lifecycles.
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- 2023
8. Pharmacological suppression of the kallikrein kinin system with KVD900: An orally available plasma kallikrein inhibitor for the on‐demand treatment of hereditary angioedema
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Edward J. Duckworth, Nivetha Murugesan, Lily Li, Louise J. Rushbrooke, Daniel K. Lee, Gian Marco De Donatis, Andreas Maetzel, Christopher M. Yea, Sally L. Hampton, and Edward P. Feener
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Kallikrein-Kinin System ,Factor XII ,Immunology ,Angioedemas, Hereditary ,Prekallikrein ,Humans ,Immunology and Allergy ,Bradykinin ,Complement C1 Inhibitor Protein ,Plasma Kallikrein ,Fluorescent Dyes - Abstract
Hereditary angioedema (HAE) is a rare genetic disease that leads to recurrent episodes of swelling and pain caused by uncontrolled plasma kallikrein (PKa) activity. Current guidelines recommend ready availability of on-demand HAE treatments that can be administered early upon attack onset. This report describes the pharmacological and pharmacodynamic properties of the novel oral small-molecule PKa inhibitor KVD900 as a potential on-demand treatment for HAE.Pharmacological properties of KVD900 on PKa and closely related serine proteases were characterized using kinetic fluorogenic substrate activity assays. Effects of KVD900 on PKa activity and kallikrein kinin system activation in whole plasma were measured in the presence of dextran sulphate (DXS)-stimulation using a fluorogenic substrate and capillary immunoassays to quantify high molecular weight kininogen (HK), plasma prekallikrein and Factor XII cleavage. Pharmacodynamic effects of orally administered KVD900 were characterized in plasma samples from six healthy controls in a first in human phase 1 clinical trial and from 12 participants with HAE in a phase 2 clinical trial.KVD900 is a selective, competitive and reversible inhibitor of human PKa enzyme with a KKVD900 is a fast-acting oral PKa inhibitor that rapidly inhibits PKa activity, kallikrein kinin system activation and HK cleavage in plasma. On-demand administration of KVD900 may provide an opportunity to halt the generation of bradykinin and reverse HAE attacks.
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- 2022
9. Medication oversight, governance, and administration in intellectual disability services: legislative limbo
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Natalie J. Duckworth and Nathan J. Wilson
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Developmental Neuroscience ,Neurology ,Rehabilitation ,Neurology (clinical) - Published
- 2022
10. Use of a data repository to identify delirium as a presenting symptom of COVID-19 infection in hospitalized adults: a pilot study (Preprint)
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Laurence Michael Solberg, Laurie J. Duckworth, Elizabeth M. Dunn, Theresa Dickinson, Tanja Magoc, Urszula A. Sniguska, Sarah E. Ser, Brian Celso, Meghan Bailey, Courtney Bowen, Nila Radhakrishnan, Chirag R. Patel, Robert Lucero, and Ragnhildur I. Bjarnadottir
- Abstract
BACKGROUND Delirium, an acute confusional state highlighted by inattention, has been demonstrated to occur in 10 to 50% of COVID-19 patients. Recognizing delirium as a possible presenting symptom of COVID-19 by using information in Electronic Health Record (EHR) data may lead to earlier treatment of the underlying viral infection and improve outcomes in clinical and healthcare systems cost per patient. OBJECTIVE The specific aim of this research was to investigate the use of i2b2 as a tool to identify delirium as a presenting symptom during COVID-19. METHODS We used i2b2 to identify our sample. We included all COVID-19 positive adults (18 years and older) who presented to the emergency department and were subsequently admitted to our academic health system in central Florida between April 1, 2020, and April 1, 2022. The obtained data was used to produce descriptive statistics, including frequencies and percentages. We examined the data by individual diagnoses, as well as within time intervals corresponding to the national peaks of the alpha (3/27/2021 – 6/12/2021), delta (7/3/2021 – 9/30/2021), and omicron (12/1/2021 – 4/1/2022) variants. We identified delirium or encephalopathy by using the following ICD-10 codes: R41.0, R41.82, R41.9, F05, F44.89 for delirium and G92, G92.8, G92.9, G93.40, G93.41, F93.49 for encephalopathy. RESULTS A total of 4828 patients were hospitalized with COVID-19 through the ED during the study period. Slightly less than one-third of COVID-19 patients were diagnosed with a co-occurring neurocognitive disorder, (i.e., delirium or encephalopathy, n = 1,437; 29.8%). Among patients with both COVID-19 and a neurocognitive disorder, 56.9% were 65 years or older, a significantly higher proportion than those with no neurocognitive disorder. There was also a significantly higher proportion of male patients in this group, compared to those with no neurocognitive disorder. Just under a third of patients with both COVID-19 and a neurocognitive disorder expired during their hospital stay, which is a significantly higher proportion than among those with COVID-19 and no neurocognitive disorder. The length of stay in this group was also substantially higher (20.8 days). Statistically significant differences in outcomes were identified across types of neurocognitive disorders and at different COVID-19 variant peaks. CONCLUSIONS Identifying delirium as a presenting sign of COVID-19 may be beneficial to better develop care plans for patients and resource planning for hospitals. Knowing that delirium increases the staffing, nursing care needs, hospital resources used, and the length of stay as shown, identifying delirium early may benefit hospital administration when planning for newly anticipated COVID-19 surges. A robust and accessible data repository, such as the one used in this study, can provide invaluable support to clinicians and clinical administrators in such resource reallocation and clinical decision-making.
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- 2022
11. Perceived weight-related stigma, loneliness, and mental wellbeing during COVID-19 in people with obesity: A cross-sectional study from ten European countries
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Rebecca A. Jones, Paul Christiansen, Niamh G. Maloney, Jay J. Duckworth, Siobhan Hugh-Jones, Amy L. Ahern, Rebecca Richards, Adrian Brown, Stuart W. Flint, Eric Robinson, Sheree Bryant, Jason C. G. Halford, Charlotte A. Hardman, Brown, Adrian [0000-0003-1818-6192], Flint, Stuart W [0000-0003-4878-3019], Robinson, Eric [0000-0003-3586-5533], Apollo - University of Cambridge Repository, and Halford, Jason C G [0000-0003-1629-3189]
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Adult ,Male ,Nutrition and Dietetics ,Cross-Sectional Studies ,Endocrinology, Diabetes and Metabolism ,Loneliness ,Medicine (miscellaneous) ,Humans ,COVID-19 ,Female ,Obesity ,Pandemics - Abstract
BACKGROUND: Increased weight-related stigma during the COVID-19 pandemic has amplified the need to minimise the impacts on mental wellbeing. We investigated the relationship between the perceived changes in the representation of obesity in the media and mental wellbeing during the pandemic in a sample of people with obesity across 10 European countries. We also investigated the potential moderating effect of loneliness. METHODS: Between September to December 2020 during the COVID-19 pandemic, participants reported data on demographics, mental wellbeing (measured by World Health Organisation Five Wellbeing Index and Patient Health Questionaire-4), loneliness (measured by De Jong Gierveld short scale), and perceived change in the representation of obesity in media (measured by a study-specific question) using the online, cross-sectional EURopean Obesity PatiEnt pANdemic Survey (EUROPEANS). Data were analysed using linear mixed-effects models, controlling for age, gender, body mass index, and shielding status, with random incept for country. RESULTS: The survey was completed by 2882 respondents. Most identified as female (56%) and reported their ethnicity as White or White-mix (92%). The total sample had a mean age of 41 years and a BMI of 35.4 kg/m2. During the peak of the pandemic, compared to pre-pandemic, perceiving more negative representation of people with obesity on social media was associated with worse psychological distress, depression, and wellbeing. Perceiving more positive representation, compared to no change in representation, of people with obesity on television was associated with greater wellbeing, yet also higher psychological distress and anxiety. Loneliness, as a moderator, explained ≤0.3% of the variance in outcomes in any of the models. CONCLUSIONS: Perceiving negative representation of obesity on social media was associated with poorer mental wellbeing outcomes during the pandemic; positive representation on television was associated with both positive and negative mental wellbeing outcomes. We encourage greater media accountability when representing people with obesity., The EUROPEANS study was funded by the European Association for the Study of Obesity (EASO) and the European Coalition for People with obesity (EPCO). RAJ and ALA are supported by the Medical Research Council (MRC) (Grant MC_UU_00006/6). For the purpose of open access, the author has applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising.
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- 2022
12. Beyond the Webster-pak. Response to Tracy (2022), Commentary on 'Medication oversight, governance, and administration in intellectual disability services: legislative limbo' (Duckworth & Wilson, 2022)
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Natalie J. Duckworth and Nathan J. Wilson
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Developmental Neuroscience ,Neurology ,Rehabilitation ,Neurology (clinical) - Published
- 2022
13. Perceived weight-related stigma, loneliness, and mental wellbeing during COVID-19 in people with obesity: A cross-sectional study from ten European countries
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Rebecca A, Jones, Paul, Christiansen, Niamh G, Maloney, Jay J, Duckworth, Siobhan, Hugh-Jones, Amy L, Ahern, Rebecca, Richards, Adrian, Brown, Stuart W, Flint, Eric, Robinson, Sheree, Bryant, Jason C G, Halford, and Charlotte A, Hardman
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Adult ,Male ,Cross-Sectional Studies ,Loneliness ,Humans ,COVID-19 ,Female ,Obesity ,Pandemics - Abstract
Increased weight-related stigma during the COVID-19 pandemic has amplified the need to minimise the impacts on mental wellbeing. We investigated the relationship between the perceived changes in the representation of obesity in the media and mental wellbeing during the pandemic in a sample of people with obesity across 10 European countries. We also investigated the potential moderating effect of loneliness.Between September to December 2020 during the COVID-19 pandemic, participants reported data on demographics, mental wellbeing (measured by World Health Organisation Five Wellbeing Index and Patient Health Questionaire-4), loneliness (measured by De Jong Gierveld short scale), and perceived change in the representation of obesity in media (measured by a study-specific question) using the online, cross-sectional EURopean Obesity PatiEnt pANdemic Survey (EUROPEANS). Data were analysed using linear mixed-effects models, controlling for age, gender, body mass index, and shielding status, with random incept for country.The survey was completed by 2882 respondents. Most identified as female (56%) and reported their ethnicity as White or White-mix (92%). The total sample had a mean age of 41 years and a BMI of 35.4 kg/mPerceiving negative representation of obesity on social media was associated with poorer mental wellbeing outcomes during the pandemic; positive representation on television was associated with both positive and negative mental wellbeing outcomes. We encourage greater media accountability when representing people with obesity.
- Published
- 2021
14. Do front-of-pack ‘green labels’ increase sustainable food choice and willingness-to-pay in U.K. consumers?
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Jay J. Duckworth, Mark Randle, Lauren S. McGale, Andrew Jones, Bob Doherty, Jason C.G. Halford, and Paul Christiansen
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Renewable Energy, Sustainability and the Environment ,Strategy and Management ,Building and Construction ,Industrial and Manufacturing Engineering ,General Environmental Science - Abstract
Aim In a series of pre-registered online studies, we aimed to elucidate the magnitude of the effect of general sustainability labels on U.K. consumers’ food choices. Methods Four labels were displayed: ‘Sustainably sourced’, ‘Locally sourced’, ‘Environmentally friendly’, and ‘Low greenhouse gas emissions’. To ensure reliable results, contingency valuation elicitation was used alongside a novel analytical approach to provide a triangulation of evidence: Multilevel-modelling compared each label vs. no-label; Poisson-modelling compared label vs. label. Socioeconomic status, environmental awareness, health motivations, and nationalism/patriotism were included in our predictive models. Results Exp.1 Multilevel-modelling (N = 140) showed labelled products were chosen 344% more than non-labelled and consumers were willing-to-pay ∼£0.11 more, although no difference between label types was found. Poisson-modelling (N = 735) showed consumers chose Sustainably sourced and Locally sourced labels ∼20% more often but were willing-to-pay ∼£0.03 more only for Locally sourced products. Exp.2 was a direct replication. Multilevel-modelling (N = 149) showed virtually identical results (labels chosen 344% more, willingness-to-pay ∼£0.10 more), as did Poisson-modelling (N = 931) with Sustainably sourced and Locally sourced chosen ∼20% more and willingness-to-pay ∼£0.04 more for Locally sourced products. Environmental concern (specifically the ‘propensity to act’) was the only consistent predictor of preference for labelled vs. non-labelled products. Conclusions Findings suggest front-of-pack ‘green labels’ may yield substantive increases in consumer choice alongside relatively modest increases in willingness-to-pay for environmentally-sustainable foods. Specifically, references to ‘sustainable’ or ‘local’ sourcing may have the largest impact.
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- 2022
15. Delineating sociodemographic, medical and quality of life factors associated with psychological distress in individuals with endometriosis
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Alissa Beath, C Sullivan-Myers, Michael Cooper, K A Sherman, and T J Duckworth
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Longitudinal study ,Population ,Endometriosis ,Psychological intervention ,Anxiety ,Psychological Distress ,03 medical and health sciences ,Social support ,0302 clinical medicine ,Quality of life (healthcare) ,Humans ,Medicine ,Longitudinal Studies ,education ,education.field_of_study ,030219 obstetrics & reproductive medicine ,Depression ,business.industry ,Rehabilitation ,Obstetrics and Gynecology ,medicine.disease ,Cross-Sectional Studies ,Reproductive Medicine ,030220 oncology & carcinogenesis ,Quality of Life ,Female ,medicine.symptom ,business ,Psychosocial ,Stress, Psychological ,Clinical psychology - Abstract
STUDY QUESTION What is the relationship between specific quality of life domains and depression, anxiety and stress in the endometriosis population? SUMMARY ANSWER Psychosocial domains of quality of life, such as a perception of social support and self-image, are more strongly associated with depression, anxiety and stress than pain and medical factors. WHAT IS KNOWN ALREADY Prior research indicates a high prevalence of anxiety and depression in individuals with endometriosis. Pain is thought to be critical in the development of psychological distress, however prior research has investigated this association without consideration of psychosocial quality of life domains such as social functioning, perceived social support and self-image. STUDY DESIGN, SIZE, DURATION This study is a cross-sectional analysis of baseline data collected in a longitudinal study exploring psychological distress in endometriosis (n = 584). PARTICIPANTS/MATERIALS, SETTING, METHODS Individuals living with endometriosis participated in this study and were recruited via online platforms of community organizations and support groups. Demographic and medical information concerning endometriosis treatment and diagnosis was self-reported. Psychological distress and quality of life was measured using the Depression, Anxiety and Stress Scale (DASS-21), Endometriosis Health Profile-30 (EHP-30) and the Short Form Survey (SF-36v2). A series of linear regression analyses explored the relationship between specific quality of life domains and the primary outcomes of depression, anxiety and stress. MAIN RESULTS AND THE ROLE OF CHANCE Approximately half of the participants in this sample reported moderate to severe anxiety, depression and stress. Quality of life domains, particularly perceived social support, social functioning and self-image, were more strongly associated with psychological distress than medical or demographic factors. Pain was associated with anxiety, but not depression or stress. A greater number of endometriosis symptoms was only associated with depression. LIMITATIONS, REASONS FOR CAUTION These data are cross-sectional and, therefore, causality cannot be inferred from this analysis. Information about endometriosis diagnosis and treatment was self-reported, and not verified against medical records. WIDER IMPLICATIONS OF THE FINDINGS This study indicates that psychosocial factors may be more salient factors underlying depression, anxiety and stress in the endometriosis population than pain and medical factors. There is a need for interventions that target psychological distress in this population with a focus on the broader impact of endometriosis beyond pain and physical symptomatology. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by the Research Training Program (RTP) Scholarship awarded to C.S.M. by Macquarie University. The remaining authors have nothing to declare. TRIAL REGISTRATION NUMBER ACTRN12619001508167.
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- 2021
16. Author response for 'Spatial and temporal variation in foraging of breeding red‐throated divers'
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F. Daunt, D. Okill, J. Duckworth, R. Väisänen, S. Williams, J. A. Green, J. Williams, L. Johnson, A. Petersen, G. Benediktsson, I. K. Petersen, S. O'Brien, and P. Lehikoinen
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Variation (linguistics) ,Ecology ,Foraging ,Biology - Published
- 2021
17. Author response for 'Sign‐tracking modulates reward‐related neural activation to reward cues, but not reward feedback'
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null Jay J. Duckworth, null Hazel Wright, null Paul Christiansen, null Abi Rose, and null Nicholas Fallon
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- 2021
18. MON-593 Single-Dose Effects of Anti-Obesity Drugs on Human Basal Metabolic Rate
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Kong Y. Chen, Marc L. Reitman, Robert J. Brychta, Shanna Bernstein, Brooks P. Leitner, Sarah L Bell, Laura A. Fletcher, Aaron M. Cypess, Amber B. Courville, Jacob D. Hattenbach, Courtney J. Duckworth, Suzanne McGehee, Ranganath Muniyappa, Thomas M. Cassimatis, and Nikita Sanjay Israni
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medicine.medical_specialty ,Endocrinology ,Adipose Tissue, Appetite, and Obesity ,business.industry ,Endocrinology, Diabetes and Metabolism ,Anti obesity ,Internal medicine ,Basal metabolic rate ,Medicine ,Dose effect ,Obesity Treatment: Gut Hormones, Drug Therapy, Bariatric Surgery and Diet ,business ,AcademicSubjects/MED00250 - Abstract
Design and rationale: Obesity results from energy intake exceeding energy expenditure (EE) over a prolonged period. Many anti-obesity drugs are designed to decrease energy intake. However, their potential impact on EE is not well documented. We designed a placebo-controlled, double-blind, randomized cross-over study to determine the acute effects of several FDA-approved anti-obesity drugs on basal metabolic rate (BMR) under well-controlled conditions. Protocol and inclusion criteria: This ongoing study is limited to healthy males of all ethnicities aged 18–35 years with a BMI of 18.5 to 25.0 kg/m2. Following an overnight stay in the Metabolic Clinical Research Unit, fasting subjects were measured from 8:00am to 12:00pm in a whole-room indirect calorimeter, which was maintained at a thermoneutral temperature (26.7±0.9°C) to prevent non-shivering thermogenesis. The six treatments include placebo, caffeine as the positive control (300 mg), phentermine (37.5 mg), topiramate (200 mg), Qsymia (phentermine 15 mg / topiramate 92 mg), and naltrexone (100 mg), with a 1-week outpatient washout period after each treatment. Drug-naïve subjects received a single dose of each drug to minimize potential metabolic adaptations that may occur with weight-loss or chronic use. The prespecified primary outcome was a ≥5% increase in BMR vs. placebo for each drug. This difference can be detected for 16 subjects with 0.83 power at α=0.05 allowing for ≤25% dropout. Secondary outcomes include respiratory quotient (RQ), heart rate (HR), mean arterial pressure (MAP), and self-reported hunger. Preliminary data: To date, 7 subjects were recruited and 6 have completed the study (26.1±4.3 years, BMI 23.1±1.4 kg/m2, body fat percentage 18.4±4.1%). Interim analysis using paired t-tests shows, compared to placebo, caffeine trended towards increasing EE (1.17±0.07 vs. 1.27±0.12 kcal/min; p=0.07) and increased MAP by 5.5±4.2% (88±2 vs. 93±4; p Summary and future directions: Anti-obesity drugs may increase energy expenditure by upregulating sympathetic nervous system activity. Combined with appetite suppression, the impact on energy balance can lead to weight loss. We aim to complete our study to determine whether these drugs can acutely increase EE with minimal cardiovascular side-effects and compare our findings with long-term interventions.
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- 2020
19. Exercise modulates the interaction between cognition and anxiety in humans
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Abigail Hsiung, Tiffany R. Lago, Monique Ernst, Kong Y. Chen, Christian Grillon, Courtney J. Duckworth, Brooks P. Leitner, and Nicholas L. Balderston
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Adult ,Male ,medicine.drug_class ,Experimental and Cognitive Psychology ,Anxiety ,Anxiolytic ,Article ,050105 experimental psychology ,03 medical and health sciences ,Cognition ,0302 clinical medicine ,Arts and Humanities (miscellaneous) ,Heart Rate ,Developmental and Educational Psychology ,medicine ,Humans ,Attention ,0501 psychology and cognitive sciences ,Exercise ,Working memory ,Mechanism (biology) ,05 social sciences ,Attentional control ,Healthy Volunteers ,Memory, Short-Term ,Female ,medicine.symptom ,Psychology ,030217 neurology & neurosurgery ,Cognitive psychology - Abstract
Despite interest in exercise as a treatment for anxiety disorders the mechanism behind the anxiolytic effects of exercise is unclear. Two observations motivate the present work. First, engagement of attention control during increased working memory (WM) load can decrease anxiety. Second, exercise can improve attention control. Therefore, exercise could boost the anxiolytic effects of increased WM load via its strengthening of attention control. Anxiety was induced by threat of shock and was quantified with anxiety-potentiated startle (APS). Thirty-five healthy volunteers (19 male, age M = 26.11, SD = 5.52) participated in two types of activity, exercise (biking at 60-70% of heart rate reserve) and control-activity (biking at 10-20% of heart rate reserve). After each activity, participants completed a WM task (n-back) at low- and high-load during safe and threat. Results were not consistent with the hypothesis: exercise vs. control-activity increased APS in high-load (p = .03). However, this increased APS was not accompanied with threat-induced impairment in WM performance (p = .37). Facilitation of both task-relevant stimulus processing and task-irrelevant threat processing, concurrent with prevention of threat interference on cognition, suggests that exercise increases cognitive ability. Future studies should explore how exercise affects the interplay of cognition and anxiety in patients with anxiety disorders.
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- 2018
20. Exercise decreases defensive responses to unpredictable, but not predictable, threat
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Christian Grillon, Kong Y. Chen, Brooks P. Leitner, Monique Ernst, Abigail Hsiung, Tiffany R. Lago, and Courtney J. Duckworth
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Adult ,Male ,Reflex, Startle ,medicine.medical_specialty ,medicine.drug_class ,Anxiety ,Anxiolytic ,Article ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,Healthy volunteers ,Humans ,Medicine ,Exercise ,business.industry ,Fear ,Anticipation, Psychological ,030227 psychiatry ,Psychiatry and Mental health ,Clinical Psychology ,Sustained response ,Female ,medicine.symptom ,business ,Heart rate reserve ,030217 neurology & neurosurgery ,Startle potentiation - Abstract
Background Research supports the anxiolytic effect of exercise, but the mechanism underlying this effect is unclear. This study examines the influence of exercise in healthy controls on two distinct defensive states implicated in anxiety disorders: fear, a phasic response to a predictable threat, and anxiety, a sustained response to an unpredictable threat. Methods Thirty-four healthy volunteers (17 male, age M = 26.18, SD = 5.6) participated in sessions of exercise (biking at 60-70% of heart rate reserve) and control (biking at 10-20% of heart rate reserve) activity for 30 min, separated by 1 week. Threat responses were measured by eyeblink startle and assessed with the "Neutral-Predictable-Unpredictable threat test," which includes a neutral (N) and two threat conditions, one with predictable (P) and one with unpredictable (U) shock. Results Results show that exercise versus control activity reduces startle potentiation during unpredictable threat (P = .031), but has no effect on startle potentiation during predictable threat (P = .609). Conclusions These results suggest that exercise reduces defensive response to unpredictable, but not predictable, threat, a dissociation that may help inform clinical indications for this behavioral intervention, as well as provide clues to its underlying neurobehavioral mechanisms.
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- 2018
21. Correction to: 1-13C-propionate breath testing as a surrogate endpoint to assess efficacy of liver-directed therapies in methylmalonic acidemia (MMA)
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Joseph Snow, Sarah L Bell, Laura A. Fletcher, Courtney J. Duckworth, Charles P. Venditti, Jack Gagné, Jacob D. Hattenbach, Brooks P. Leitner, Nicholas Ah Mew, Irini Manoli, Alexandra Pass, Carol Van Ryzin, Oleg A Shchelochkov, Kong Y. Chen, Elizabeth A Harrington, Thomas M. Cassimatis, Jennifer L. Sloan, Audrey Thurm, Susan Ferry, Samantha McCoy, and Carolina I. Galarreta
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Breath test ,chemistry.chemical_classification ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Surrogate endpoint ,Methylmalonic acid ,Methylmalonic acidemia ,Renal function ,medicine.disease ,Enteral administration ,Gastroenterology ,chemistry.chemical_compound ,chemistry ,Internal medicine ,Propionate ,Medicine ,Bolus (digestion) ,business ,Genetics (clinical) - Abstract
To develop a safe and noninvasive in vivo assay of hepatic propionate oxidative capacity. A modified 1-13C-propionate breath test was administered to 57 methylmalonic acidemia (MMA) subjects, including 19 transplant recipients, and 16 healthy volunteers. Isotopomer enrichment (13CO2/12CO2) was measured in exhaled breath after an enteral bolus of sodium-1-13C-propionate, and normalized for CO2 production. 1-13C-propionate oxidation was then correlated with clinical, laboratory, and imaging parameters collected via a dedicated natural history protocol. Lower propionate oxidation was observed in patients with the severe mut0 and cblB subtypes of MMA, but was near normal in those with the cblA and mut− forms of the disorder. Liver transplant recipients demonstrated complete restoration of 1-13C-propionate oxidation to control levels. 1-13C-propionate oxidation correlated with cognitive test result, growth indices, bone mineral density, renal function, and serum biomarkers. Test repeatability was robust in controls and in MMA subjects (mean coefficient of variation 6.9% and 12.8%, respectively), despite widely variable serum methylmalonic acid concentrations in the patients. Propionate oxidative capacity, as measured with 1-13C-propionate breath testing, predicts disease severity and clinical outcomes, and could be used to assess the therapeutic effects of liver-targeted genomic therapies for MMA and related disorders of propionate metabolism. This clinical study is registered in www.clinicaltrials.gov with the ID: NCT00078078. Study URL: http://clinicaltrials.gov/ct2/show/NCT00078078
- Published
- 2021
22. Traumatic Brain Injury-2Accuracy of Self-Reported Questions for Assessment of TBI History
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J Bailie, I Babakhanyan, M Jolly, V Ekanayake, P Sargent, J Duckworth, and V Ekanayke
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Psychiatry and Mental health ,Clinical Psychology ,Neuropsychology and Physiological Psychology ,Traumatic brain injury ,business.industry ,medicine ,General Medicine ,medicine.disease ,business ,Self report ,Clinical psychology - Published
- 2017
23. Quantification of the Capacity for Cold-Induced Thermogenesis in Young Men With and Without Obesity
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Shanna Bernstein, Juan Wang, Sarah L Bell, Brooks P. Leitner, Laura A. Fletcher, Marc L. Reitman, Courtney J. Duckworth, Robert J. Brychta, Aaron M. Cypess, Kong Y. Chen, Shan Huang, Amber B. Courville, Rachel P. Wood, Christopher Idelson, Suzanne McGehee, and Jacob D. Hattenbach
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,Endocrinology, Diabetes and Metabolism ,Cold induced thermogenesis ,Clinical Biochemistry ,Adipose tissue ,Biochemistry ,Body Mass Index ,Young Adult ,Endocrinology ,Adipose Tissue, Brown ,Internal medicine ,medicine ,Humans ,Obesity ,Clinical Research Articles ,business.industry ,Biochemistry (medical) ,Thermogenesis ,medicine.disease ,Cold Temperature ,Basal (medicine) ,Basal metabolic rate ,Shivering ,Body Composition ,Basal Metabolism ,medicine.symptom ,business ,Energy Metabolism ,Body mass index - Abstract
ObjectiveCold exposure increases energy expenditure (EE) and could have a role in combating obesity. To understand this potential, we determined the capacity for cold-induced thermogenesis (CIT), the EE increase above the basal metabolic rate at the individualized coldest tolerable temperature before overt shivering.DesignDuring a 13-day inpatient protocol, we quantitated the EE of 12 lean men and 9 men with obesity at various randomly ordered ambient temperatures in a room calorimeter. Subjects underwent brown fat imaging after exposure to their coldest tolerable temperature.ResultsCIT capacity was 300 ± 218 kcal/d (mean ± SD) or 17 ± 11% in lean men and 125 ± 146 kcal/d or 6 ± 7% in men with obesity (P = 0.01). The temperature below which EE increased, lower critical temperature (Tlc), was warmer in lean men than men with obesity (22.9 ± 1.2 vs 21.1 ± 1.7°C, P = 0.03), but both had similar skin temperature (Tskin) changes and coldest tolerable temperatures. Whereas lean subjects had higher brown fat activity, skeletal muscle activity increased synchronously with CIT beginning at the Tlc in both groups, indicating that muscle is recruited for CIT in parallel with brown fat, not sequentially after nonshivering thermogenesis is maximal.ConclusionsDespite greater insulation from fat, men with obesity had a narrower range of tolerable cool temperatures available for increasing EE and less capacity for CIT than lean men, likely as a result of greater basal heat production and similar perception to Tskin cooling. Further study of the reduced CIT capacity in men with obesity may inform treatment opportunities for obesity.
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- 2019
24. A Throughput-Based Analysis of Army Active Component/Reserve Component Mix for Major Contingency Surge Operations
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Christopher M. Carson, Isaac Baruffi, Michael E. Linick, Katharina Ley Best, Eric J. Duckworth, Igor Mikolic-Torreira, Melissa Bauman, Alexander Stephenson, and Jeremy M. Eckhause
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Process management ,Military logistics ,Mobilization ,Software deployment ,Process (engineering) ,Component (UML) ,Timeline ,Business ,Contingency ,Throughput (business) - Abstract
This report examines how well the processes and timeline for generating ready forces from the Army reserve component (RC) units align with a need for rapid deployment to a future major conflict overseas. The report focuses on how the dynamics of the mobilization process for Army RC units can, or should, affect decisionmaking about force mix, as well as how policy and resourcing decisions can either enhance or inhibit mobilization.
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- 2019
25. Regulation of Human Adipose Tissue Activation, Gallbladder Size, and Bile Acid Metabolism by a β3-Adrenergic Receptor Agonist
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Courtney J. Duckworth, James W. Johnson, Suzanne McGehee, Peter Herscovitch, H. Martin Garraffo, Michael A. Kiebish, Alison S. Baskin, Laura A. Fletcher, Brooks P. Leitner, Niven R. Narain, Cheryl Cero, Corina Millo, Fei Gao, Joyce D. Linderman, Peter Walter, William Dieckmann, Robert J. Brychta, Kong Y. Chen, Esti Anflick-Chames, Vladimir Tolstikov, Hongyi Cai, Alana E O'Mara, Emily Y. Chen, Aaron M. Cypess, and Shan Huang
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0301 basic medicine ,Agonist ,Adult ,medicine.medical_specialty ,Adolescent ,medicine.drug_class ,Endocrinology, Diabetes and Metabolism ,Adipose tissue ,White adipose tissue ,Bile Acids and Salts ,03 medical and health sciences ,Mice ,Young Adult ,Adipose Tissue, Brown ,Internal medicine ,Brown adipose tissue ,Receptors, Adrenergic, beta ,Internal Medicine ,medicine ,Lipolysis ,Animals ,Humans ,RNA, Messenger ,Aged ,Aged, 80 and over ,business.industry ,Gallbladder ,Thermogenesis ,Adrenergic beta-Agonists ,Middle Aged ,Pharmacology and Therapeutics ,Healthy Volunteers ,Mice, Inbred C57BL ,Thiazoles ,030104 developmental biology ,medicine.anatomical_structure ,Endocrinology ,Receptors, Adrenergic, beta-3 ,Acetanilides ,Mirabegron ,business ,medicine.drug - Abstract
β3-adrenergic receptor (AR) agonists are approved to treat only overactive bladder. However, rodent studies suggest that these drugs could have other beneficial effects on human metabolism. We performed tissue receptor profiling and showed that the human β3-AR mRNA is also highly expressed in gallbladder and brown adipose tissue (BAT). We next studied the clinical implications of this distribution in 12 healthy men given one-time randomized doses of placebo, the approved dose of 50 mg, and 200 mg of the β3-AR agonist mirabegron. There was a more-than-dose-proportional increase in BAT metabolic activity as measured by [18F]-2-fluoro-D-2-deoxy-d-glucose positron emission tomography/computed tomography (medians 0.0 vs. 18.2 vs. 305.6 mL ⋅ mean standardized uptake value [SUVmean] ⋅ g/mL). Only the 200-mg dose elevated both nonesterified fatty acids (68%) and resting energy expenditure (5.8%). Previously undescribed increases in gallbladder size (35%) and reductions in conjugated bile acids were also discovered. Therefore, besides urinary bladder relaxation, the human β3-AR contributes to white adipose tissue lipolysis, BAT thermogenesis, gallbladder relaxation, and bile acid metabolism. This physiology should be considered in the development of more selective β3-AR agonists to treat obesity-related complications.
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- 2018
26. Helping Soldiers Leverage Army Knowledge, Skills, and Abilities in Civilian Jobs
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Jeffrey B. Wenger, Ellen M. Pint, Tepring Piquado, Michael G. Shanley, Trinidad Beleche, Melissa A. Bradley, Jonathan Welch, Laura Werber, Cate Yoon, Eric J. Duckworth, Nicole H. Curtis, Jeffrey B. Wenger, Ellen M. Pint, Tepring Piquado, Michael G. Shanley, Trinidad Beleche, Melissa A. Bradley, Jonathan Welch, Laura Werber, Cate Yoon, Eric J. Duckworth, and Nicole H. Curtis
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- Veterans--Employment--United States, Soldiers--Employment--United States, Career changes--United States, Veterans--Vocational guidance--United States
- Abstract
This report discusses the results of occupation surveys administered to soldiers in selected Army military occupational specialties (MOSs) to assess the level and importance of the knowledge, skills, and abilities needed in these MOSs and to develop better crosswalks between military and civilian occupations. The report identifies both a broader range of military-civilian occupation matches and higher-quality matches than existing crosswalks.
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- 2017
27. Mapping of human brown adipose tissue in lean and obese young men
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Ilan Tal, Brooks P. Leitner, Garima Gupta, Robert J. Brychta, Shan Huang, Courtney J. Duckworth, Aaron M. Cypess, Kong Y. Chen, William Dieckmann, Suzanne McGehee, Gerald M. Kolodny, Peter Herscovitch, Alison S. Baskin, and Karel Pacak
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0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,Glucose uptake ,Adipose tissue ,Glucose-6-Phosphate ,030209 endocrinology & metabolism ,Biology ,Body Mass Index ,03 medical and health sciences ,0302 clinical medicine ,Adipose Tissue, Brown ,Internal medicine ,Brown adipose tissue ,medicine ,Humans ,Total fat ,Obesity ,Metabolic disease ,Adiposity ,PET-CT ,Multidisciplinary ,Thermogenesis ,Biological Sciences ,medicine.disease ,030104 developmental biology ,medicine.anatomical_structure ,Endocrinology ,Positron-Emission Tomography ,Tomography, X-Ray Computed ,Body mass index - Abstract
Human brown adipose tissue (BAT) can be activated to increase glucose uptake and energy expenditure, making it a potential target for treating obesity and metabolic disease. Data on the functional and anatomic characteristics of BAT are limited, however. In 20 healthy young men [12 lean, mean body mass index (BMI) 23.2 ± 1.9 kg/m2; 8 obese, BMI 34.8 ± 3.3 kg/m2] after 5 h of tolerable cold exposure, we measured BAT volume and activity by 18F-labeled fluorodeoxyglucose positron emission tomography/computerized tomography (PET/CT). Obese men had less activated BAT than lean men (mean, 130 vs. 334 mL) but more fat in BAT-containing depots (mean, 1,646 vs. 855 mL) with a wide range (0.1–71%) in the ratio of activated BAT to inactive fat between individuals. Six anatomic regions had activated BAT—cervical, supraclavicular, axillary, mediastinal, paraspinal, and abdominal—with 67 ± 20% of all activated BAT concentrated in a continuous fascial layer comprising the first three depots in the upper torso. These nonsubcutaneous fat depots amounted to 1.5% of total body mass (4.3% of total fat mass), and up to 90% of each depot could be activated BAT. The amount and activity of BAT was significantly influenced by region of interest selection methods, PET threshold criteria, and PET resolutions. The present study suggests that active BAT can be found in specific adipose depots in adult humans, but less than one-half of the fat in these depots is stimulated by acute cold exposure, demonstrating a previously underappreciated thermogenic potential.
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- 2017
28. Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
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Michael R. Blanton, Matthew A. Bershady, Bela Abolfathi, Franco D. Albareti, Carlos Allende Prieto, Andres Almeida, Javier Alonso-García, Friedrich Anders, Scott F. Anderson, Brett Andrews, Erik Aquino-Ortíz, Alfonso Aragón-Salamanca, Maria Argudo-Fernández, Eric Armengaud, Eric Aubourg, Vladimir Avila-Reese, Carles Badenes, Stephen Bailey, Kathleen A. Barger, Jorge Barrera-Ballesteros, Curtis Bartosz, Dominic Bates, Falk Baumgarten, Julian Bautista, Rachael Beaton, Timothy C. Beers, Francesco Belfiore, Chad F. Bender, Andreas A. Berlind, Mariangela Bernardi, Florian Beutler, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael Blomqvist, Adam S. Bolton, Médéric Boquien, Jura Borissova, Remco van den Bosch, Jo Bovy, William N. Brandt, Jonathan Brinkmann, Joel R. Brownstein, Kevin Bundy, Adam J. Burgasser, Etienne Burtin, Nicolás G. Busca, Michele Cappellari, Maria Leticia Delgado Carigi, Joleen K. Carlberg, Aurelio Carnero Rosell, Ricardo Carrera, Nancy J. Chanover, Brian Cherinka, Edmond Cheung, Yilen Gómez Maqueo Chew, Cristina Chiappini, Peter Doohyun Choi, Drew Chojnowski, Chia-Hsun Chuang, Haeun Chung, Rafael Fernando Cirolini, Nicolas Clerc, Roger E. Cohen, Johan Comparat, Luiz da Costa, Marie-Claude Cousinou, Kevin Covey, Jeffrey D. Crane, Rupert A. C. Croft, Irene Cruz-Gonzalez, Daniel Garrido Cuadra, Katia Cunha, Guillermo J. Damke, Jeremy Darling, Roger Davies, Kyle Dawson, Axel de la Macorra, Flavia Dell’Agli, Nathan De Lee, Timothée Delubac, Francesco Di Mille, Aleks Diamond-Stanic, Mariana Cano-Díaz, John Donor, Juan José Downes, Niv Drory, Hélion du Mas des Bourboux, Christopher J. Duckworth, Tom Dwelly, Jamie Dyer, Garrett Ebelke, Arthur D. Eigenbrot, Daniel J. Eisenstein, Eric Emsellem, Mike Eracleous, Stephanie Escoffier, Michael L. Evans, Xiaohui Fan, Emma Fernández-Alvar, J. G. Fernandez-Trincado, Diane K. Feuillet, Alexis Finoguenov, Scott W. Fleming, Andreu Font-Ribera, Alexander Fredrickson, Gordon Freischlad, Peter M. Frinchaboy, Carla E. Fuentes, Lluís Galbany, R. Garcia-Dias, D. A. García-Hernández, Patrick Gaulme, Doug Geisler, Joseph D. Gelfand, Héctor Gil-Marín, Bruce A. Gillespie, Daniel Goddard, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul J. Green, Catherine J. Grier, James E. Gunn, Hong Guo, Julien Guy, Alex Hagen, ChangHoon Hahn, Matthew Hall, Paul Harding, Sten Hasselquist, Suzanne L. Hawley, Fred Hearty, Jonay I. Gonzalez Hernández, Shirley Ho, David W. Hogg, Kelly Holley-Bockelmann, Jon A. Holtzman, Parker H. Holzer, Joseph Huehnerhoff, Timothy A. Hutchinson, Ho Seong Hwang, Héctor J. Ibarra-Medel, Gabriele da Silva Ilha, Inese I. Ivans, KeShawn Ivory, Kelly Jackson, Trey W. Jensen, Jennifer A. Johnson, Amy Jones, Henrik Jönsson, Eric Jullo, Vikrant Kamble, Karen Kinemuchi, David Kirkby, Francisco-Shu Kitaura, Mark Klaene, Gillian R. Knapp, Jean-Paul Kneib, Juna A. Kollmeier, Ivan Lacerna, Richard R. Lane, Dustin Lang, David R. Law, Daniel Lazarz, Youngbae Lee, Jean-Marc Le Goff, Fu-Heng Liang, Cheng Li, Hongyu Li, Jianhui Lian, Marcos Lima, Lihwai Lin, Yen-Ting Lin, Sara Bertran de Lis, Chao Liu, Miguel Angel C. de Icaza Lizaola, Dan Long, Sara Lucatello, Britt Lundgren, Nicholas K. MacDonald, Alice Deconto Machado, Chelsea L. MacLeod, Suvrath Mahadevan, Marcio Antonio Geimba Maia, Roberto Maiolino, Steven R. Majewski, Elena Malanushenko, Viktor Malanushenko, Arturo Manchado, Shude Mao, Claudia Maraston, Rui Marques-Chaves, Thomas Masseron, Karen L. Masters, Cameron K. McBride, Richard M. McDermid, Brianne McGrath, Ian D. McGreer, Nicolás Medina Peña, Matthew Melendez, Andrea Merloni, Michael R. Merrifield, Szabolcs Meszaros, Andres Meza, Ivan Minchev, Dante Minniti, Takamitsu Miyaji, Surhud More, John Mulchaey, Francisco Müller-Sánchez, Demitri Muna, Ricardo R. Munoz, Adam D. Myers, Preethi Nair, Kirpal Nandra, Janaina Correa do Nascimento, Alenka Negrete, Melissa Ness, Jeffrey A. Newman, Robert C. Nichol, David L. Nidever, Christian Nitschelm, Pierros Ntelis, Julia E. O’Connell, Ryan J. Oelkers, Audrey Oravetz, Daniel Oravetz, Zach Pace, Nelson Padilla, Nathalie Palanque-Delabrouille, Pedro Alonso Palicio, Kaike Pan, John K. Parejko, Taniya Parikh, Isabelle Pâris, Changbom Park, Alim Y. Patten, Sebastien Peirani, Marcos Pellejero-Ibanez, Samantha Penny, Will J. Percival, Ismael Perez-Fournon, Patrick Petitjean, Matthew M. Pieri, Marc Pinsonneault, Alice Pisani, Radosław Poleski, Francisco Prada, Abhishek Prakash, Anna Bárbara de Andrade Queiroz, M. Jordan Raddick, Anand Raichoor, Sandro Barboza Rembold, Hannah Richstein, Rogemar A. Riffel, Rogério Riffel, Hans-Walter Rix, Annie C. Robin, Constance M. Rockosi, Sergio Rodríguez-Torres, A. Roman-Lopes, Carlos Román-Zúñiga, Margarita Rosado, Ashley J. Ross, Graziano Rossi, John Ruan, Rossana Ruggeri, Eli S. Rykoff, Salvador Salazar-Albornoz, Mara Salvato, Ariel G. Sánchez, D. S. Aguado, José R. Sánchez-Gallego, Felipe A. Santana, Basílio Xavier Santiago, Conor Sayres, Ricardo P. Schiavon, Jaderson da Silva Schimoia, Edward F. Schlafly, David J. Schlegel, Donald P. Schneider, Mathias Schultheis, William J. Schuster, Axel Schwope, Hee-Jong Seo, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, Michael Shull, Joshua D. Simon, Danielle Skinner, M. F. Skrutskie, Anže Slosar, Verne V. Smith, Jennifer S. Sobeck, Flavia Sobreira, Garrett Somers, Diogo Souto, David V. Stark, Keivan Stassun, Fritz Stauffer, Matthias Steinmetz, Thaisa Storchi-Bergmann, Alina Streblyanska, Guy S. Stringfellow, Genaro Suárez, Jing Sun, Nao Suzuki, Laszlo Szigeti, Manuchehr Taghizadeh-Popp, Baitian Tang, Charling Tao, Jamie Tayar, Mita Tembe, Johanna Teske, Aniruddha R. Thakar, Daniel Thomas, Benjamin A. Thompson, Jeremy L. Tinker, Patricia Tissera, Rita Tojeiro, Hector Hernandez Toledo, Sylvain de la Torre, Christy Tremonti, Nicholas W. Troup, Octavio Valenzuela, Inma Martinez Valpuesta, Jaime Vargas-González, Mariana Vargas-Magaña, Jose Alberto Vazquez, Sandro Villanova, M. Vivek, Nicole Vogt, David Wake, Rene Walterbos, Yuting Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, David H. Weinberg, Kyle B. Westfall, David G. Whelan, Vivienne Wild, John Wilson, W. M. Wood-Vasey, Dominika Wylezalek, Ting Xiao, Renbin Yan, Meng Yang, Jason E. Ybarra, Christophe Yèche, Nadia Zakamska, Olga Zamora, Pauline Zarrouk, Gail Zasowski, Kai Zhang, Gong-Bo Zhao, Zheng Zheng, Xu Zhou, Zhi-Min Zhou, Guangtun B. Zhu, Manuela Zoccali, Hu Zou, The Leverhulme Trust, University of St Andrews. School of Physics and Astronomy, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Joseph Louis LAGRANGE (LAGRANGE), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)
- Subjects
Astrophysics and Astronomy ,Milky Way ,astro-ph.GA ,FOS: Physical sciences ,Espectros astronômicos ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Surveys ,01 natural sciences ,law.invention ,Telescope ,Redshift-space distortions ,surveys ,Observatory ,law ,0103 physical sciences ,QB Astronomy ,Astrophysics::Solar and Stellar Astrophysics ,spectrographs [Instrumentation] ,observations [Cosmology] ,Galaxy: general ,stars: general ,010303 astronomy & astrophysics ,general [Galaxy] ,QC ,Astrophysics::Galaxy Astrophysics ,instrumentation: spectrographs ,QB ,Mapeamentos astronômicos ,Physics ,general [Stars] ,010308 nuclear & particles physics ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy and Astrophysics ,Quasar ,general [Galaxies] ,DAS ,galaxies: general ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Redshift ,QC Physics ,Space and Planetary Science ,cosmology: observations ,Astrophysics of Galaxies (astro-ph.GA) ,Catalogos astronomicos ,Baryon acoustic oscillations ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] - Abstract
We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratio in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially-resolved spectroscopy for thousands of nearby galaxies (median redshift of z = 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between redshifts z = 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGN and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5-meter Sloan Foundation Telescope at Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5-meter du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in July 2016., Published in Astronomical Journal
- Published
- 2017
29. Improving Employment Prospects for Soldiers Leaving the Regular Army
- Author
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Trinidad Beleche, Ellen M. Pint, Nicole H. Curtis, Jonathan Welch, Melissa A. Bradley, Jeffrey B. Wenger, Laura Werber, Cate Yoon, Michael G. Shanley, Tepring Piquado, and Eric J. Duckworth
- Subjects
Economic growth ,business.industry ,Medicine ,business - Abstract
Discusses the results of a new approach to develop an improved crosswalk between Army military occupational specialties (MOSs) and civilian occupations, highlighting ten of the Army's most populous combat and noncombat MOSs.
- Published
- 2017
30. Helping Soldiers Leverage Army Knowledge, Skills, and Abilities in Civilian Jobs
- Author
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Nicole H. Curtis, Trinidad Beleche, Melissa A. Bradley, Jonathan Welch, Ellen M. Pint, Laura Werber, Jeffrey B. Wenger, Cate Yoon, Michael G. Shanley, Eric J. Duckworth, and Tepring Piquado
- Subjects
Engineering ,Medical education ,Leverage (negotiation) ,business.industry ,Process (engineering) ,Human resource management ,Military psychology ,business ,Human resources ,Management - Abstract
This report documents one of the primary tasks of a research project titled Facilitating AC-to-RC and AC-to-Civilian Transitions. The overall purpose of the project was to assess the level and importance of the knowledge, skills, and abilities needed to perform in Army military occupational specialties (MOSs) to develop improved crosswalks between military and civilian occupations and to make other recommendations to improve the transition process for soldiers leaving the Regular Army. In this report, we discuss the results of occupation surveys administered to soldiers in ten of the most populous Army MOSs, including the knowledge, skills, and abilities rated most important by soldiers in those MOSs, the best-matching civilian occupations, and comparisons with other military-civilian occupation crosswalks.
- Published
- 2017
31. Effects of feeding calcium oxide on growth performance, carcass characteristics, and ruminal metabolism of cattle
- Author
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A. S. Schroeder, M. J. Duckworth, Dan B Faulkner, Daniel W Shike, and Tara L. Felix
- Subjects
chemistry.chemical_compound ,Corn stover ,Chemistry ,Latin square ,Silage ,Back fat ,Marbled meat ,Animal Science and Zoology ,Food science ,Metabolism ,Calcium oxide ,Distillers grains ,Food Science - Abstract
Three experiments tested the effects of feeding CaO as part of the TMR or as CaO-treated corn stover (CS) on growth performance, carcass characteristics, and ruminal metabolism of cattle. In Exp. 1, steers (n = 162) were fed 1 of 3 diets containing 20% CS and 40% modified wet distillers grains with solubles: untreated CS (UCS), treated CS with 5% CaO (DM basis; TCS), and dietary inclusion of 1% CaO (DM basis; DC). Feeding DC or TCS decreased (P < 0.05) DMI, final BW, HCW, and back fat compared with feeding UCS. Feeding TCS decreased (P < 0.05) ADG compared with feeding UCS. In Exp. 2, heifers (n = 138) were fed 1 of 3 diets: UCS, TCS, and 40% corn silage (DM basis; SIL). Feeding TCS decreased (P ≤ 0.05) DMI, and final BW, and back fat compared with feeding UCS and SIL. Heifers fed UCS had similar (P ≤ 0.05) ADG, DMI, and marbling score as heifers fed SIL; however, final BW and G:F were decreased (P ≤ 0.05). In Exp. 3, steers (n = 5) were fed in a 5 × 5 Latin square; diets were UCS, TCS, DC, SIL, and a control of 50% cracked corn. Feeding TCS tended to decrease (P = 0.06) ruminal pH when compared with UCS. Steers fed UCS had the least (P ≤ 0.05) DM digestibility and steers fed the control had the greatest. Treating CS with CaO effectively increased digestibility; however, it did not improve cattle performance. Feeding cattle untreated, ensiled CS resulted in ADG and G:F comparable to feeding corn silage.
- Published
- 2014
32. Effects of calcium oxide treatment of dry and modified wet corn distillers grains plus solubles on growth performance, carcass characteristics, and apparent digestibility of feedlot steers1
- Author
-
M. J. Duckworth, A. R. Schroeder, Tara L. Felix, Daniel W Shike, and Jon P Schoonmaker
- Subjects
Meal ,Chemistry ,Randomized block design ,General Medicine ,Factorial experiment ,Beef cattle ,Feed conversion ratio ,Distillers grains ,Animal science ,Latin square ,Feedlot ,Genetics ,Animal Science and Zoology ,Food Science - Abstract
The objectives of this study were to determine the effects of feeding dried corn distillers grains (DDGS) or modified wet corn distillers grains (MDGS) with or without CaO treatment to feedlot steers on 1) growth performance and carcass characteristics and 2) diet digestibility, pattern of intake, and meal distribution. In Exp. 1, steers (n = 139; average initial BW = 336 ± 75 kg) were used in a randomized complete block design. Treatments were arranged in a 2 × 2 factorial design, and pens were randomly allotted to 1 of the 4 dietary treatments (DM basis): 1) 50% DDGS untreated, 2) 48.8% DDGS treated with 1.2% CaO, 3) 50% MDGS untreated, or 4) 48.8% MDGS treated with 1.2% CaO. The remainder of the diet was corn husklage, dry rolled corn, and vitamin and mineral supplement. In Exp. 2, fistulated steers (n = 8; average initial BW = 540 ± 250 kg) were used in a replicated 4 × 4 Latin square design with the same dietary treatments as in Exp. 1. There was no interaction (P ≥ 0.14) between distillers grains plus solubles (DGS) and CaO inclusion for DMI, ADG, final BW, or USDA yield and quality grades. However, steers fed CaO-treated DGS had decreased (P < 0.01) DMI, regardless of DGS type. Because CaO treatment decreased DMI without affecting (P = 0.66) ADG, steers fed CaO-treated DGS had increased (P < 0.01) G:F compared to steers not fed CaO. The variation in DMI found in this experiment could be explained by differences in meal size and distribution. Steers fed CaO-treated DGS ate a similar (P = 0.36) number of meals but ate smaller (P < 0.01) meals. No effects (P ≥ 0.55) of CaO treatment or its interaction with DGS type were found for apparent total tract DM or NDF digestibility. However, steers fed MDGS had increased (P < 0.01) NDF digestibility compared to steers fed DDGS. In conclusion, CaO treatment of DGS improved feed efficiency when DGS-based diets were fed but did not improve digestibility.
- Published
- 2014
33. GERM CELL TUMORS
- Author
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Q.-y. Yang, Z.-p. Chen, T. Hayase, A. Gomi, A. Higaki, Y. Kawahara, T. Kobari, T. Fukuda, Y. Kashii, A. Morimoto, T. Sakatani, M. Y. Momoi, M. Murray, J. Hale, K. Heinemann, F. Saran, G. Calaminus, J. Nicholson, S. Martinez, Y. Khakoo, S. Gilheeney, K. Kramer, S. Wolden, M. Souweidane, I. Dunkel, E. Brichtova, Z. Pavelka, A. Bobekova, O. Magnova, L. Kren, T. Svoboda, A. Sprlakova, P. Slampa, K. Zitterbart, J. Sterba, C. J. Campen, D. Ashby, P. G. Fisher, M. Monje, J. Dagri, J. Torkildson, J. Cheng, R. X. Wang, T. Yock, A. Banerjee, G. Dhall, J. Finlay, T. Yanagisawa, K. Fukuoka, T. Suzuki, T. Kohga, K. Wakiya, J. Adachi, K. Mishima, T. Fujimaki, M. Matsutani, R. Nishikawa, D. Frappaz, R. D. Kortmann, C. Alapetite, M. L. Garre, U. Ricardi, F. H. Saran, T. Czech, R. Walker, T. Koga, G. Legault, J. Allen, O. Geludkova, M. Mushinskaya, Y. Kushel, A. Korshunov, A. Melikyan, L. Shishkina, V. Oserova, S. Oserov, N. Maserkina, I. Borodina, E. Kumirova, N. Boyarchuk, S. Gorbatyh, E. Popova, O. Sherbenko, N. Zelinskaya, R. Shammasov, L. Privalova, O. Chulkov, Y. Kosel, A. M. Cappellano, P. Paiva, S. Cavalheiro, P. Dastoli, M. T. Seixas, N. S. Silva, G. C.-F. Chan, M. M.-K. Shing, H.-L. Yuen, R. C.-H. Li, C.-K. Li, S.-Y. Ha, H.-H. Chen, F.-C. Chang, Y.-W. Chen, T.-T. Wong, B. Yarascavitch, N. Stein, L. Ribeiro, A. Whitton, J. Duckworth, K. Scheinemann, S. Singh, S. Ozerov, S. Gorelyshev, Y. Trunin, N. Kagawa, Y. Fujimoto, R. Hirayama, Y. Chiba, N. Kijima, H. Arita, M. Kinoshita, N. Hashimoto, M. Maruno, T. Yoshimine, G. P. Guerra, M. Oscanoa, L. Cavero, A. Yabar, E. Ugarte, M. Trivedi, A. Tyagi, J. Goodden, P. Chumas, M. Elliott, S. Picton, N. Robison, S. Prabhu, P. Sun, S. Chi, M. Kieran, P. Manley, L. Cohen, L. Goumnerova, E. Smith, M. Scott, W. London, and N. J. Ullrich
- Subjects
Oncology ,Cancer Research ,medicine.medical_specialty ,Germinoma ,Choriocarcinoma ,Histogenesis ,Biology ,medicine.disease ,Embryonal carcinoma ,Abstracts ,medicine.anatomical_structure ,Internal medicine ,medicine ,Cancer research ,Neurology (clinical) ,Germ cell tumors ,Teratoma ,Teratoma with Malignant Transformation ,Germ cell - Abstract
Central nervous system (CNS) germ cell tumors (GCTs) are separated into germinomas and nongerminomatous germ cell tumors (NGGCTs). The latter group includes teratoma (mature and immature), teratoma with malignant transformation, yolk sac tumor, embryonal carcinoma, choriocarcinoma, and mixed GCTs. CNS GCTs can be classified based on their histologic appearance and immunohistochemical profiles with histologic subtype being the best predictor of outcome. Germinomas respond exceptionally well to chemotherapy and irradiation and have been shown to have survival rates in excess of 90 %. In contrast, NGGCTs are more resistant to therapy and require more intensive chemotherapy, as well as higher doses of irradiation. There is little information on the histogenesis and molecular genetics of CNS GCTs. Fluorescent in situ hybridization (FISH) studies have shown a gain of X chromosome in a majority of GCTs. Other studies have shown that 12p abnormalities (gains and isochromosome 12p) are common, especially in germinomas. Gene expression analysis studies show overexpression of self-renewing pluripotency genes and genes responsible for tumor growth and differentiation in various tumors with no significant differences in gene expression between CNS GCTs of similar histology arising at different sites and different ages within the pediatric age group. Differences in microRNA expression have been demonstrated between histologic subtypes of CNS GCTs, and their potential use as a biomarker in the serum and cerebrospinal fluid is being explored. KIT mutations are the most commonly found abnormality on whole genome sequencing, predominantly in germinomas, followed by genes involved in the MAPK signaling pathway, suggesting a role for KIT inhibitors in the management of these tumors.
- Published
- 2012
34. Subjective and Physiological Predictors of Anxiety at Rest and During a Working Memory Task
- Author
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Courtney J. Duckworth, Robert J. Brychta, Monique Ernst, Tiffany R. Lago, Brooks P. Leitner, Kong Y. Chen, Abigail Hsiung, and Christian Grillon
- Subjects
Rest (physics) ,medicine.medical_specialty ,Working memory ,medicine ,Anxiety ,Physical Therapy, Sports Therapy and Rehabilitation ,Orthopedics and Sports Medicine ,medicine.symptom ,Psychology ,Psychiatry ,Task (project management) ,Clinical psychology - Published
- 2017
35. Central Pulse Pressure in Chronic Kidney Disease
- Author
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Mohammed A. Rafey, Matthew A. Weir, Alan S. Go, Jing Chen, Jackson T. Wright, Julio A. Chirinos, Susan Steigerwalt, Afshin Parsa, Mark J. Duckworth, Marshall P. Joffe, Crystal A. Gadegbeku, Chi-yuan Hsu, Stephen M. Sozio, James P. Lash, and Raymond R. Townsend
- Subjects
Adult ,Blood Glucose ,Male ,Mean arterial pressure ,medicine.medical_specialty ,Hemodynamics ,Blood Pressure ,Article ,Cohort Studies ,Sex Factors ,Heart Rate ,Internal medicine ,Diabetes mellitus ,Internal Medicine ,medicine ,Humans ,Aged ,Aged, 80 and over ,Glycated Hemoglobin ,Kidney ,business.industry ,Age Factors ,Middle Aged ,medicine.disease ,Pulse pressure ,Cross-Sectional Studies ,medicine.anatomical_structure ,Endocrinology ,Parathyroid Hormone ,Cohort ,Disease Progression ,Cardiology ,Kidney Failure, Chronic ,Regression Analysis ,Female ,business ,Cohort study ,Kidney disease - Abstract
Central pulse pressure can be non-invasively derived using the radial artery tonometric methods. Knowledge of central pressure profiles has predicted cardiovascular morbidity and mortality in several populations of patients, particularly those with known coronary artery disease and those receiving dialysis. Few data exist characterizing central pressure profiles in patients with mild-moderate chronic kidney disease who are not on dialysis. We measured central pulse pressure cross-sectionally in 2531 participants in the Chronic Renal Insufficiency Cohort study to determine correlates of the magnitude of central pulse pressure in the setting of chronic kidney disease. Tertiles of central pulse pressure (CPP) were < 36 mmHg, 36–51 mmHg and > 51 mmHg with an overall mean (± S.D.) of 46 ± 19 mmHg. Multivariable regression identified the following independent correlates of central pulse pressure: age, gender, diabetes mellitus, heart rate (negatively correlated), glycosylated hemoglobin, hemoglobin, glucose and PTH concentrations. Additional adjustment for brachial mean arterial pressure and brachial pulse pressure showed associations for age, gender, diabetes, weight and heart rate. Discrete intervals of brachial pulse pressure stratification showed substantial overlap within the associated central pulse pressure values. The large size of this unique chronic kidney disease cohort provides an ideal situation to study the role of brachial and central pressure measurements in kidney disease progression and cardiovascular disease incidence.
- Published
- 2010
36. NovelHelicobacter pyloritherapeutic targets: the unusual suspects
- Author
-
George L. Mendz, Arinze S. Okoli, and Megan J Duckworth
- Subjects
Microbiology (medical) ,Helicobacter pylori ,Gene Expression Regulation, Bacterial ,Computational biology ,Biology ,biology.organism_classification ,Microbiology ,Anti-Bacterial Agents ,Helicobacter Infections ,Mice ,Infectious Diseases ,Bacterial Proteins ,Genes, Bacterial ,Virology ,Animals ,Humans - Abstract
Understanding the current status of the discovery and development of anti-Helicobacter therapies requires an overview of the searches for therapeutic targets performed to date. A summary is given of the very substantial body of work conducted in the quest to find Helicobacter pylori genes that could be suitable candidates for therapeutic intervention. The products of most of these genes perform metabolic functions, and others have roles in growth, cell motility and colonization. The genes identified as potential targets have been organized into three categories according to their degree of characterization. A short description and evaluation is provided of the main candidates in each category. Investigations of potential therapeutic targets have generated a wealth of information about the physiology and genetics of H. pylori, and its interactions with the host, but have yielded little by way of new therapies.
- Published
- 2009
37. Investing in Asia: the route to riches or reckless adventure?
- Author
-
Stephen J Duckworth
- Subjects
Globalization ,Polymers and Plastics ,Economy ,General Chemical Engineering ,Materials Chemistry ,Economics ,China ,Adventure ,Newspaper - Abstract
It is impossible to read newspapers or plastics trade magazines without seeing articles about companies investing in Asia to benefit from the tremendous growth in China or the potential of India. There is no doubt that both these regions represent opportunities for western companies, but it is easy to be seduced by the statistics and a thorough assessment of the opportunity and the risks is needed. For every success story there are three or four instances where things did not go as anticipated. In the second of his articles on issues arising from globalization, Stephen Duckworth of Euro-Asia Connect highlights some of the issues that he believes need to be considered as part of an entry strategy to Asian markets.
- Published
- 2006
38. Electrostatic Switches That Mediate the pH-Dependent Conformational Change of 'Short' Recombinant Human Pseudocathepsin D
- Author
-
Nathan E. Goldfarb, and Alexander J. Duckworth, Ambar Patel, Ben M. Dunn, Arjo K. Bose, and Minh T. Lam
- Subjects
Models, Molecular ,Conformational change ,Protein Conformation ,Stereochemistry ,Molecular Sequence Data ,Ionic bonding ,Cathepsin D ,Biochemistry ,Article ,Fluorescence ,chemistry.chemical_compound ,Protein structure ,Enzyme Stability ,Humans ,Point Mutation ,Amino Acid Sequence ,Carboxylate ,Enzyme kinetics ,Hydrogen bond ,Tryptophan ,Substrate (chemistry) ,Hydrogen-Ion Concentration ,Recombinant Proteins ,Kinetics ,chemistry ,Sequence Alignment - Abstract
Human cathepsin D (hCatD) is an aspartic peptidase with a low pH optimum. X-ray crystal structures have been solved for an active, low pH (pH 5.1) form (CatD(lo)) [Baldwin, E. T., Bhat, T. N., Gulnik, S., Hosur, M. V., Sowder, R. C., Cachau, R. E., Collins, J., Silva, A. M., and Erickson, J. W. (1993) Proc. Natl. Acad. Sci. U.S.A. 90, 6796-6800] and an inactive, high pH (pH 7.5) form (CatD(hi)) [Lee, A. Y., Gulnik, S. V., and Erickson, J. W. (1998) Nat. Struct. Biol. 5, 866-871]. It has been suggested that ionizable switches involving the carboxylate side chains of E5, E180, and D187 may mediate the reversible interconversion between CatD(hi) and CatD(lo) and that Y10 stabilizes CatD(hi) [Lee, A. Y., Gulnik, S. V., and Erickson, J. W. (1998) Nat. Struct. Biol. 5, 866-871]. To test these hypotheses, we generated single point mutants in "short" recombinant human pseudocathepsin D (srCatD), a model kinetically similar to hCatD [Beyer, B. M., and Dunn, B. M. (1996) J. Biol. Chem. 271, 15590-15596]. E180Q, Y10F, and D187N exhibit significantly higher kcat/Km values (2-, 3-, and 6-fold, respectively) at pH 3.7 and 4.75 compared to srCatD, indicating that these residues are important in stabilizing the CatD(hi). E5Q exhibits a 2-fold lower kcat/Km compared to srCatD at both pH values, indicating the importance of E5 in stabilizing the CatD(lo). Accordingly, full time-course "pH-jump" (pH 5.5-4.75) studies of substrate hydrolysis indicate that E180Q, D187N, and Y10F have shorter kinetic lag phases that represent the change from CatD(hi) to CatD(lo) compared to srCatD and E5Q. Intrinsic tryptophan fluorescence reveals that the variants have a native-like structure over the pH range of our assays. The results indicate that E180 and D187 participate as an electrostatic switch that initiates the conformational change of CatD(lo) to CatD(hi) and Y10 stabilizes CatD(hi) by hydrogen bonding to the catalytic Asp 33. E5 appears to play a less significant role as an ionic switch that stabilizes CatD(lo).
- Published
- 2005
39. Globilization: how to improve the chances of success
- Author
-
Stephen J Duckworth
- Subjects
Globalization ,Market economy ,Polymers and Plastics ,Economy ,General Chemical Engineering ,Materials Chemistry ,Economics ,China ,Domestic market ,Plastics industry - Abstract
Whether we like it or not, the plastics industry is now a truly global phenomena. Many companies in North America and Europe are looking to either manufacture in China or take advantage of rapidly expanding domestic markets in Asia. Likewise many Chinese and other Asian companies are keen to find new markets for their products around the world. In a series of two articles addressing both sides of this globalization movement, Stephen Duckworth of Euro-Asia Connect reviews some of the issues that plastics companies need to address if they want to be successful in unfamiliar markets. In this issue, he argues that Asian companies need to consider a great deal more than price if they want to be successful exporters.
- Published
- 2005
40. GAD1 (2q31.1), which encodes glutamic acid decarboxylase (GAD67), is associated with childhood-onset schizophrenia and cortical gray matter volume loss
- Author
-
Richard E. Straub, Dede Greenstein, Natalie Baker, D.R. Weinberger, Alexandra Sporn, Judith L. Rapoport, Aaron J. Bobb, Radhakrishna Vakkalanka, Peter Gochman, Michele C. Gornick, Nitin Gogtay, J Duckworth, Marge Lenane, Rishi Balkissoon, and Anjené M. Addington
- Subjects
Adult ,Male ,Candidate gene ,medicine.medical_specialty ,Psychosis ,Adolescent ,5' Flanking Region ,Genetic Linkage ,Glutamate decarboxylase ,Grey matter ,Biology ,Polymorphism, Single Nucleotide ,GAD1 ,Cellular and Molecular Neuroscience ,Internal medicine ,medicine ,Humans ,Family ,Genetic Predisposition to Disease ,Age of Onset ,Child ,Molecular Biology ,Genetic association ,Cerebral Cortex ,Genetics ,Glutamate Decarboxylase ,Transmission disequilibrium test ,medicine.disease ,Pedigree ,Isoenzymes ,Dorsolateral prefrontal cortex ,Psychiatry and Mental health ,medicine.anatomical_structure ,Endocrinology ,Haplotypes ,Chromosomes, Human, Pair 2 ,Schizophrenia ,Female - Abstract
Postmortem brain studies have shown deficits in the cortical gamma-aminobutyric acid (GABA) system in schizophrenic individuals. Expression studies have shown a decrease in the major GABA-synthesizing enzyme (glutamic acid decarboxylase (GAD67) mRNA levels in neurons in dorsolateral prefrontal cortex in schizophrenics relative to controls. In the present study, SNPs in and around the GAD1 gene, which encodes the protein GAD67, were tested on a rare, severely ill group of children and adolescents with childhood-onset schizophrenia (COS) (n=72), in a family-based association analysis. Compared to adult-onset samples, the COS sample has evidence for more salient familial, and perhaps genetic, risk factors for schizophrenia, as well as evidence for frontal cortical hypofunction, and greater decline in cortical gray matter volume on anatomic brain MRI scans during adolescence. We performed family-based TDT and haplotype association analyses of the clinical phenotype, as well as association analyses with endophenotypes using the QTDT program. Three adjacent SNPs in the 5' upstream region of GAD1 showed a positive pairwise association with illness in these families (P=0.022-0.057). Significant transmission distortion of 4-SNP haplotypes was also observed (P=0.003-0.008). Quantitative trait TDT analyses showed an intriguing association between several SNPs and increased rate of frontal gray matter loss. These observations, when taken together with the positive results reported recently in two independent adult-onset schizophrenia pedigree samples, suggest that the gene encoding GAD67 may be a common risk factor for schizophrenia.
- Published
- 2004
41. Modelling of auxiliary ventilation systems
- Author
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I. J. Duckworth and Ian Lowndes
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Engineering ,business.industry ,General Engineering ,Software development ,Mechanical engineering ,Geology ,Geotechnical Engineering and Engineering Geology ,law.invention ,Software ,law ,Ventilation (architecture) ,General Earth and Planetary Sciences ,Design process ,Duct (flow) ,business ,Simulation ,General Environmental Science - Abstract
In subsurface excavations, auxiliary ventilation systems are an important and integrated component of the overall ventilation scheme. Without adequate auxiliary ventilation, it is impossible to provide sufficient air to working faces, regardless of the quantity or quality of air in the main airways. Extended development headings are typically ventilated using fan and duct systems, which either force or exhaust air through the duct. The optimum design of such systems can be complex, depending on factors such as duct resistance, leakage and diameter, fan selection and spacing, and shock losses. This paper describes the development and application of a comprehensive design process for auxiliary ventilation systems. Included is a summary of published theory and literature, a description of software development, information and results from detailed field measurements, and a description of the application of the software to the design of an actual extended auxiliary fan and duct system.
- Published
- 2003
42. Mental illness: has the medical perspective really helped?
- Author
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Jay J. Duckworth
- Published
- 2012
43. Higher levels of cystatin C are associated with worse cognitive function in older adults with chronic kidney disease: the chronic renal insufficiency cohort cognitive study
- Author
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Susan Steigerwalt, Amanda H. Anderson, Nancy Robinson, Ashwini R. Sehgal, James H. Sondheimer, Alan S. Go, John W. Kusek, Manjula Kurella-Tamura, Lynn Ackerson, Tina D. Hoang, Marie Krousel-Wood, Raymond R. Townsend, Kristine Yaffe, Akinlolu O. Ojo, Mark J. Duckworth, and James P. Lash
- Subjects
Gerontology ,cognition ,Male ,medicine.medical_specialty ,Aging ,Kidney Disease ,Renal and urogenital ,Renal function ,Neuropsychological Tests ,urologic and male genital diseases ,Logistic regression ,Basic Behavioral and Social Science ,Medical and Health Sciences ,Article ,Clinical Research ,Internal medicine ,cystatin C ,Behavioral and Social Science ,Medicine ,Humans ,Renal Insufficiency ,Prospective Studies ,Chronic ,Cystatin C ,Renal Insufficiency, Chronic ,Prospective cohort study ,Aged ,biology ,business.industry ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,United States ,Geriatrics ,Cohort ,CRIC Study Investigators ,Multivariate Analysis ,biology.protein ,Female ,Geriatrics and Gerontology ,business ,Cognition Disorders ,chronic kidney disease ,Biomarkers ,Kidney disease - Abstract
ObjectivesTo determine the association between cognition and levels of cystatin C in persons with chronic kidney disease (CKD).DesignProspective observational study.SettingChronic Renal Insufficiency Cohort Cognitive Study.ParticipantsIndividuals with a baseline cognitive assessment completed at the same visit as serum cystatin C measurement (N=821; mean age 64.9, 50.6% male, 48.6% white).MeasurementsLevels of serum cystatin C were categorized into tertiles; cognitive function was assessed using six neuropsychological tests. Scores on these tests were compared across tertiles of cystatin C using linear regression and logistic regression to examine the association between cystatin C level and cognitive performance (1 standard deviation difference from the mean).ResultsAfter multivariable adjustment for age, race, education, and medical comorbidities in linear models, higher levels of cystatin C were associated with worse cognition on the modified Mini-Mental State Examination, Buschke Delayed Recall, Trail-Making Test Part (Trails) A and Part B, and Boston Naming (P 
- Published
- 2014
44. Effects of calcium oxide treatment of dry and modified wet corn distillers grains plus solubles on growth performance, carcass characteristics, and apparent digestibility of feedlot steers
- Author
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A R, Schroeder, M J, Duckworth, D W, Shike, J P, Schoonmaker, and T L, Felix
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Male ,Meat ,Dietary Supplements ,Animals ,Cattle ,Digestion ,Oxides ,Calcium Compounds ,Animal Feed ,Zea mays ,Diet - Abstract
The objectives of this study were to determine the effects of feeding dried corn distillers grains (DDGS) or modified wet corn distillers grains (MDGS) with or without CaO treatment to feedlot steers on 1) growth performance and carcass characteristics and 2) diet digestibility, pattern of intake, and meal distribution. In Exp. 1, steers (n = 139; average initial BW = 336 ± 75 kg) were used in a randomized complete block design. Treatments were arranged in a 2 × 2 factorial design, and pens were randomly allotted to 1 of the 4 dietary treatments (DM basis): 1) 50% DDGS untreated, 2) 48.8% DDGS treated with 1.2% CaO, 3) 50% MDGS untreated, or 4) 48.8% MDGS treated with 1.2% CaO. The remainder of the diet was corn husklage, dry rolled corn, and vitamin and mineral supplement. In Exp. 2, fistulated steers (n = 8; average initial BW = 540 ± 250 kg) were used in a replicated 4 × 4 Latin square design with the same dietary treatments as in Exp. 1. There was no interaction (P ≥ 0.14) between distillers grains plus solubles (DGS) and CaO inclusion for DMI, ADG, final BW, or USDA yield and quality grades. However, steers fed CaO-treated DGS had decreased (P0.01) DMI, regardless of DGS type. Because CaO treatment decreased DMI without affecting (P = 0.66) ADG, steers fed CaO-treated DGS had increased (P0.01) G:F compared to steers not fed CaO. The variation in DMI found in this experiment could be explained by differences in meal size and distribution. Steers fed CaO-treated DGS ate a similar (P = 0.36) number of meals but ate smaller (P0.01) meals. No effects (P ≥ 0.55) of CaO treatment or its interaction with DGS type were found for apparent total tract DM or NDF digestibility. However, steers fed MDGS had increased (P0.01) NDF digestibility compared to steers fed DDGS. In conclusion, CaO treatment of DGS improved feed efficiency when DGS-based diets were fed but did not improve digestibility.
- Published
- 2014
45. B-25The Impact of Traumatic Brain Injury and Heavy Weapons Blast Exposure on Neuropsychological Functioning in the Military
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Paul Sargent, J Bailie, M Jolly, b Powell, J Duckworth, and M Hussain
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medicine.medical_specialty ,Traumatic brain injury ,business.industry ,Basic Local Alignment Search Tool ,Blast exposure ,Neuropsychology ,General Medicine ,medicine.disease ,Psychiatry and Mental health ,Clinical Psychology ,Military personnel ,Neuropsychology and Physiological Psychology ,medicine ,Psychiatry ,business - Published
- 2016
46. Regional Skin Temperature Responses to Warm vs. Cold in Healthy Lean and Obese Young Men
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Brooks P. Leitner, Courtney J. Duckworth, Robert J. Brychta, Sarah A. Smyth, Suzanne McGehee, Jacob D. Hattenbach, Kong Y. Chen, and Shan Huang
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Animal science ,business.industry ,Skin temperature ,Medicine ,Physical Therapy, Sports Therapy and Rehabilitation ,Orthopedics and Sports Medicine ,business - Published
- 2016
47. RADIOLOGY
- Author
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J. Murray, E. Braly, H. Head, D. Donahue, S. Rush, N. Stence, A. Liu, J. Kleinhenz, B. Bison, T. Pietsch, K. von Hoff, A. von Bueren, S. Rutkowski, M. Warmuth-Metz, T. Jaspan, H. Brisse, P. Potepan, F. Berg, N. Gerber, K. Sugiyama, K. Kurisu, Y. Kajiwara, T. Takayasu, T. Saito, R. Hanaya, F. Yamasaki, J. Vicente, E. Fuster-Garcia, S. Tortajada, J. M. Garcia-Gomez, N. Davies, K. Natarajan, M. Wilson, R. G. Grundy, P. Wesseling, D. Monleon, B. Celda, M. Robles, A. C. Peet, C. Perret, E. Boltshauser, I. Scheer, C. Kellenberger, M. Grotzer, E. Steffen-Smith, D. Venzon, R. Bent, E. Baker, S. Shandilya, K. Warren, C.-S. Shih, J. West, C. Ho, D. Porter, Y. Wang, A. Saykin, B. McDonald, K. Arfanakis, G. Vezina, D. Hargrave, T. Y. Poussaint, S. Goldman, R. Packer, P. Wen, I. Pollack, D. Zurakowski, L. Kun, M. Prados, M. Kieran, L. Eckel, G. Keating, C. Giannini, N. Wetjen, A. Patton, J. Sarlls, C. Pierpaoli, L. Walker, S. Perreault, R. Lober, K. Yeom, A.-S. Carret, H. Vogel, S. Partap, P. Fisher, S. K. Gill, N. P. Davies, L. MacPherson, T. N. Arvanitis, S. Gill, T. Arvanitis, A. Peet, L. Hayes, R. Jones, C. Mazewski, D. Aguilera, S. Palasis, A. Bendel, R. Patterson, J. Petronio, L. Meijer, R. G. G. Grundy, D. A. Walker, N. Robison, F. Grant, S. T. Treves, P. Bandopadhayay, P. Manley, S. Chi, M. A. Zimmerman, C. Chordas, L. Goumnerova, E. Smith, M. Scott, N. J. Ullrich, T. Poussaint, J. C. Yang, D. D. Lightner, Y. Khakoo, S. L. Wolden, R. Smee, C. Zhao, B. Spencer-Trotter, A. Hallock, A. Konski, K. Bhambani, A. Mahajan, J. Jones, L. Ketonen, A. Paulino, J. Ater, D. Grosshans, R. Dauser, J. Weinberg, M. Chintagumpala, R. Dvir, R. Elhasid, B. Corn, H. Tempelhoff, D. Matceyevsky, V. Makrin, N. Shtraus, D. Yavetz, S. Constantini, E. Gez, E.-S. Yu, Y.-J. Kim, H. J. Park, H. J. Kim, S. H. Shin, J.-H. Kim, J.-Y. Kim, Y. K. Lee, M. R. Fiore, C. Sanne, H. C. Mandeville, F. H. Saran, J. Greenspoon, J. Duckworth, S. Singh, K. Scheinemann, A. Whitton, K. Gauvain, T. Geller, S. Elbabaa, J. Dombrowski, K. Wong, A. Olch, T. B. Davidson, R. Venkatramani, K. Haley, W. Zaky, G. Dhall, J. Finlay, M. W. Bishop, T. R. Hummel, J. Leach, J. Minturn, J. Breneman, C. Stevenson, L. Wagner, M. Sutton, L. Miles, and M. Fouladi
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Cancer Research ,Abstracts ,Oncology ,Neurology (clinical) - Published
- 2012
48. QUALITY OF LIFE/AFTERCARE
- Author
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S. Rednam, M. Scheurer, A. Adesina, C. Lau, M. Okcu, J. Deatrick, S. Ogle, M. Fisher, L. Barakat, T. Hardie, Y. Li, J. Ginsberg, M. Ben-Arush, E. Krivoy, R. Rosenkranz, M. Peretz-Nahum, R. J. Brown, J. Love, D. Warburton, W. H. McBride, S. Bluml, S. Mueller, K. Sear, N. Hills, N. Chettout, S. Afghani, L. Lew, E. Tolentino, D. Haas-Kogan, H. Fullerton, W. Reddick, S. Palmer, J. Glass, R. Ogg, A. Gajjar, A. Omar, S. Perkins, E. Shinohara, D. Spoljaric, J. Isenberg, M. Whittington, M. Hauff, A. King, K. Litzelman, E. Barker, K. Catrine, D. Puccetti, P. Possin, W. Witt, C. Mallucci, R. Kumar, B. Pizer, D. Williams, B. Pettorini, J. Piscione, E. Bouffet, I. Shams, A. Kulkarni, T. Remes, A. Harila-Saari, M. Suo-Palosaari, P. Arikoski, P. Riikonen, A. Sutela, P. Koskenkorva, M. Ojaniemi, H. Rantala, C. J. Campen, D. Ashby, P. G. Fisher, M. Monje, A. V. Kulkarni, H. Nakamura, K. Makino, S. Yano, J.-i. Kuratsu, F. Jadrijevic-Cvrlje, M. Batinica, H. Toledano, T. Hoffman, Y. Ezer-Cohen, S. Michowiz, I. Yaniv, I. J. Cohen, I. Adler, S. Mindel, M. Gopalakrishnamoorthy, D. Saunders, M. Gaze, H. Spoudeas, V. Kieffer, G. Dellatolas, M. Chevignard, S. Puget, F. Dhermain, J. Grill, C. Dufour, R. Muir, A. Hunter, A. Latchman, O. de Camargo, K. Scheinemann, N. Dhir, W. Zaky, T. Zomorodian, K. Wong, G. Dhall, M. Macy, C. Lauro, P. Zeitler, N. Foreman, A. Liu, M. Chocholous, P. Dodier, A. Peyrl, K. Dieckmann, G. Hausler, I. Slavc, S. Avula, D. Garlick, G. Armstrong, T. Kawashima, W. Leisenring, M. Stovall, C. Sklar, L. Robison, C. Samaan, J. Duckworth, N. Greenberg-Kushnir, S. Freedman, R. Eshel, N. Zverling, R. Elhasid, R. Dvir, M. Yalon, S. Constantini, S. Wilne, J.-F. Liu, J. Trusler, S. Lundsell, C. Kennedy, L. Clough, N. Dickson, M. Lakhanpaul, M. Baker, J. Dudley, R. Grundy, D. Walker, K. von Hoff, N. Herzog, H. Ottensmeier, D. Grabow, N. U. Gerber, C. Friedrich, A. O. von Bueren, A. Resch, R. D. Kortmann, P. Kaatsch, H. G. Doerr, S. Rutkowski, F. del Bufalo, A. Mastronuzzi, A. Serra, L. de Sio, F. Locatelli, V. Biassoni, M. Leonardi, D. Ajovalasit, D. Riva, C. Vago, A. Usilla, P. Fidani, E. Schiavello, F. Gariboldi, M. Massimino, R. Lober, S. Perrault, S. Partap, M. Edwards, P. Fisher, K. Yeom, D. Salgado, S. Nunes, S. Vinhais, E. M. Wells, K. Seidel, N. J. Ullrich, L. Diller, K. R. Krull, J. Neglia, L. L. Robison, K. Whelan, C. E. Russell, D. Brownstone, C. Kaise, K. Bull, D. Culliford, G. Calaminus, D. Bertin, S. Vallero, E. Romano, M. E. Basso, E. Biasin, F. Fagioli, K. Ziara, A. L'Hotta, A. Williams, R. Thede, K. Moore, A. James, E. Bjorn, P. Franzen, A. Haag, A.-K. Lax, I. Moreno, J. Obeid, B. W. Timmons, W. Iwata, S. Wagner, J.-S. Lai, K. Waddell, S. VanLeeuwen, M. Newmark, J. Noonan, K. O'Connell, M. Urban, S. Yount, S. Goldman, D. Igoe, T. Cunningham, M. Orfus, D. Mabbott, C. Liptak, P. Manley, C. Recklitis, P. Zhang, F. Shaikh, I. Narang, K. Matsumoto, K. Yamasaki, K. Okada, H. Fujisaki, Y. Osugi, J. Hara, K. Phipps, D. Gumley, T. Jacques, D. Hargrave, A. Michalski, C. Chordas, S. Chi, N. Robison, P. Bandopadhayay, K. Marcus, M. A. Zimmerman, L. Goumnerova, M. Kieran, S. Brand, T. Brinkman, B. Delaney, T. Diver, C. Rey, J. R. Madden, M. S. Hemenway, L. Dorneman, D. Stiller, A. K. Liu, N. K. Foreman, R. Vibhakar, M. Mitchell, M. Hemenway, J. Madden, M. Ryan, R. O'Kane, S. Picton, T. Kenny, C. Stiller, P. Chumas, A. Bendel, R. Patterson, M. Barrera, F. Schulte, U. Bartels, L. Janzen, D. Johnston, D. Cataudella, J. Chung, L. Sung, K. Hancock, J. Hukin, S. Zelcer, S. Brandon, I. Montour-Proulx, D. Strother, R. Cooksey, D. Bowers, L. Gargan, A. Gode, L. Klesse, J. Oden, G. Vega, F. Sala, D. Nuzzi, M. Mulino, B. Masotto, C. Mazza, A. Bricolo, M. Gerosa, M. Tong, S. Laughlin, S. Mackie, L. Taylor, G. Sharpe, O. Al-Salihi, and G. Nicolin
- Subjects
Oncology ,Medulloblastoma ,Cancer Research ,medicine.medical_specialty ,Chemotherapy ,business.industry ,medicine.medical_treatment ,Amifostine ,Multimodality Therapy ,medicine.disease ,Clinical trial ,Abstracts ,Ototoxicity ,Primitive neuroectodermal tumor ,Internal medicine ,Immunology ,medicine ,Neurology (clinical) ,Adverse effect ,business ,medicine.drug - Abstract
BACKGROUND: Glutathione S-transferase (GST) enzymes are involved in detoxifying chemotherapy agents and clearing reactive oxygen species formed by radiation. In this study, we explored the relationship between the host GSTP1-105 polymorphism (rs1695), tumor GSTpi protein expression, and clinical outcomes in pediatric medulloblastoma. We hypothesized that the GSTP1-105 G-allele and increased tumor GSTpi expression would be associated with lower progression-free survival and fewer adverse events. METHODS: The study included 106 medulloblastoma/primitive neuroectodermal tumor (PNET) patients seen at Texas Children’s Cancer Center. Genotyping was performed using an Illumina HumanOmni1-Quad BeadChip and tumor GSTpi expression was assessed using immunohistochemistry. We used the Kaplan-Meier method for survival analyses and multivariable logistic regression for toxicity comparisons. RESULTS: Patients with a GSTP1-105 AG/GG genotype or who had received a higher dose of craniospinal radiation (median 36 Gy) had a greater risk of requiring hearing aids than their respective counterparts (OR 4.0, 95%CI 1.2 - 13.6, and OR 3.1, 95%CI 1.1 - 8.8, respectively). Additionally, there was a statistically significant interaction between the two variables. Compared with the lowest risk group (GSTP1-105 AA-lower dose radiation) patients with a GSTP1-105 AG/GG genotype who received a higher dose radiation were 8.4 times more likely to require hearing aids (95%CI 1.4 - 49.9, p-trend ¼ 0.005). When adjusted for age, gender, and amifostine use, the association remained. CONCLUSIONS: The GSTP1-105 G-allele is associated with permanent ototoxicity in pediatric medulloblastoma/PNET and strongly interacts with radiation dose. A possible mechanism for this finding is that the GSTP1-105 G-allele leads to reduced GSTpi free radical detoxification in the setting of multimodality therapy including cisplatin and radiation. Patients with this allele should be considered for clinical trials employing radiation dose modifications and more targeted cytoprotectant strategies than are currently being used with amifostine.
- Published
- 2012
49. WPI precision personnel locator: Inverse synthetic array reconciliation tomography
- Author
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R. J. Duckworth, A. Cavanaugh, M. Lowe, and D. Cyganski
- Subjects
Engineering ,Inertial frame of reference ,business.industry ,Position (vector) ,Metric (mathematics) ,Electronic engineering ,Point (geometry) ,Radio frequency ,business ,Algorithm ,Signal ,Displacement (vector) ,Inertial navigation system - Abstract
This paper describes the latest algorithm being developed by the Worcester Polytechnic Institute (WPI) Precision Personnel Location (PPL) project. Our goal is to produce a rapidly deployable, ad-hoc system that can achieve sub meter positioning accuracy in any type of emergency response scenario using available spectrum; specifically we wish to locate first responders in and around buildings. Previous work [1] has led to separate or loosely coupled approaches for fusing RF and inertial positioning data, as well as data from other sensors. The Inverse Synthetic Array Reconciliation Tomography (IS-ART) algorithm is a fusion of RF and inertial measurements that is fundamentally different from previous systems. Instead of fusing positioning results, we use the inertial displacements to coherently fuse successive RF captures. The benefits of this approach are twofold. First, the fusion depends only on relationships between inertial values spanning small time intervals, so that we do not accumulate large inertial drift errors. Second, the RF conditions at each point are expected to be very different because high multi-path environments are very sensitive to spatial perturbations. Since the multi-path signal components are changing rapidly with position we expect that only the direct path signals will be correlated between successive RF data captures taken from unique positions. In order for the direct path signals from different locations to be correlated these captures must be aligned for fusion with the inertial displacement data. The ISART algorithm performs this signal alignment and computes a metric based on this direct path correlation using the sample processing employed by the Singular Value Array Reconciliation Tomography (σART ) algorithm [2]; the ISART solution is the point where the metric is maximal.
- Published
- 2012
50. Determining update latency bounds in Galactica Net
- Author
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R. J. Duckworth, A. Wilson, W. Michalson, and S. Clayton
- Subjects
Non-uniform memory access ,Distributed shared memory ,Computer Science::Hardware Architecture ,Hardware_MEMORYSTRUCTURES ,Shared memory ,Computer science ,General Engineering ,Uniform memory access ,Distributed memory ,Multiprocessing ,Parallel computing ,Latency (engineering) ,Distributed cache - Abstract
The paper looks at the problem of ensuring the performance of real-time applications hosted on Galactica Net, a mesh-based distributed cache coherent shared memory multiprocessing system. A method for determining strict upper bounds on worst case latencies in wormhole routed networks of known or unknown communication patterns is presented. From this, a tool for determining upper bounds for shared memory update latencies is developed, and it is shown that the update latency of Galactica Net is deterministic. The analytical bounds are then compared with maximum latencies observed in simulations of GNet, with which they compare favorably. Finally, it is shown that the tool for determining update latency bounds is useful for comparing differing GNet system configurations in order to minimize update latency bounds.
- Published
- 1994
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