480 results on '"Matthew A Palmer"'
Search Results
2. Efficient Exact Online String Matching Through Linked Weak Factors.
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Matthew N. Palmer, Simone Faro, and Stefano Scafiti
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- 2024
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3. Cure Glomerulonephropathy Pathology Classification and Core Scoring Criteria, Reproducibility, and Clinicopathologic Correlations
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Matthew B Palmer, Virginie Royal, J. Charles Jennette, Abigail R. Smith, Qian Liu, Josephine M. Ambruzs, Nicole K. Andeen, Vivette D. D’Agati, Agnes B. Fogo, Joseph Gaut, Rasheed A. Gbadegesin, Larry A. Greenbaum, Jean Hou, Margaret E Helmuth, Richard A. Lafayette, Helen Liapis, Bruce Robinson, Michael B. Stokes, Katherine Twombley, Hong Yin, and Cynthia C. Nast
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cure glomerulonephropathy ,kidney biopsy ,reproducibility ,pathology scoring ,clinical-pathologic correlation ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
Introduction: Cure Glomerulonephropathy (CureGN) is an observational cohort study of patients with minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), membranous nephropathy (MN), or IgA nephropathy. We developed a conventional, consensus-based scoring system to document pathologic features for application across multiple pathologists and herein describe the protocol, reproducibility, and correlation with clinical parameters at biopsy. Methods: Definitions were established for glomerular, tubular, interstitial, and vascular lesions evaluated semiquantitatively using digitized light microscopy slides and electron micrographs, and reported immunofluorescence. Cases with curated pathology materials as of April 2019 were scored by a randomly assigned pathologist, with at least 10% of cases scored by a second pathologist. Scoring reproducibility was assessed using Gwet’s agreement coefficient (AC)1 statistic and correlations with clinical variables were performed. Results: Of 800 scored biopsies (134 MCD, 194 FSGS, 206 MN, 266 IgA), 94 were scored twice (11.8%). Of 60 pathology features, 46 (76.7%) demonstrated excellent (AC1>0.8), and 12 (20.0%) had good (AC1 0.6–0.8) reproducibility. Mesangial hypercellularity scored as absent, focal, or diffuse had moderate reproducibility (AC1 = 0.58), but good reproducibility (AC1 = 0.71) when scored as absent or focal versus diffuse. The percent glomeruli scored as no lesions had fair reproducibility (AC1 = 0.34). Strongest correlations between pathologic features and clinical characteristics at biopsy included interstitial inflammation, interstitial fibrosis, and tubular atrophy with estimated glomerular filtration rate, foot process effacement with urine protein/creatinine ratio, and active crescents with hematuria. Conclusions: Most scored pathology features showed excellent reproducibility, demonstrating consistency for these features across multiple pathologists. Correlations between certain pathologic features and expected clinical characteristics show the value of this approach for future studies on clinicopathologic correlations and biomarker discovery.
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- 2023
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4. The Need for Multi‐Century Projections of Sea Level Rise
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Matthew D. Palmer and Jennifer H. Weeks
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sea level rise ,climate projections ,sea level projections ,coastal adaptation ,sea level commitment ,multi‐century projections ,Environmental sciences ,GE1-350 ,Ecology ,QH540-549.5 - Abstract
Abstract The latest assessment report of the Intergovernmental Panel on Climate Change (IPCC) provided scenario‐based local sea level projections to 2150 and characterized the long‐term committed global mean sea level rise on 2,000‐ and 10,000‐year time horizons associated with peak surface warming levels. Turner et al. build on the scientific assessment of the IPCC to provide time‐continuous projections of future sea level rise to 2500. These projections fill an important knowledge gap to help inform coastal decision‐making processes and more fully quantify the benefits of mitigation actions in terms of limiting future sea level rise. However, limited understanding of ice instability processes remains a key scientific challenge and improved observational and modeling capability are critical to reducing uncertainties and monitoring the trajectory of observed change.
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- 2024
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5. Calibration of cognitive tests to address the reliability paradox for decision-conflict tasks
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Talira Kucina, Lindsay Wells, Ian Lewis, Kristy de Salas, Amelia Kohl, Matthew A. Palmer, James D. Sauer, Dora Matzke, Eugene Aidman, and Andrew Heathcote
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Science - Abstract
Abstract Standard, well-established cognitive tasks that produce reliable effects in group comparisons also lead to unreliable measurement when assessing individual differences. This reliability paradox has been demonstrated in decision-conflict tasks such as the Simon, Flanker, and Stroop tasks, which measure various aspects of cognitive control. We aim to address this paradox by implementing carefully calibrated versions of the standard tests with an additional manipulation to encourage processing of conflicting information, as well as combinations of standard tasks. Over five experiments, we show that a Flanker task and a combined Simon and Stroop task with the additional manipulation produced reliable estimates of individual differences in under 100 trials per task, which improves on the reliability seen in benchmark Flanker, Simon, and Stroop data. We make these tasks freely available and discuss both theoretical and applied implications regarding how the cognitive testing of individual differences is carried out.
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- 2023
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6. Single-cell analysis highlights differences in druggable pathways underlying adaptive or fibrotic kidney regeneration
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Michael S. Balzer, Tomohito Doke, Ya-Wen Yang, Daniel L. Aldridge, Hailong Hu, Hung Mai, Dhanunjay Mukhi, Ziyuan Ma, Rojesh Shrestha, Matthew B. Palmer, Christopher A. Hunter, and Katalin Susztak
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Science - Abstract
After acute injury, kidneys either successfully repair/regenerate or become fibrotic. Here the authors use scRNA-seq to study adaptive/maladaptive kidney regeneration and identify proinflammatory/fibrotic proximal tubule cells with pharmacologically targetable pyroptosis/ferroptosis signatures.
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- 2022
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7. Storm surge changes around the UK under a weakened Atlantic meridional overturning circulation
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Tom Howard, Matthew D Palmer, Laura C Jackson, and Kuniko Yamazaki
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storm surge ,Atlantic meridional overturning circulation ,Climate change ,Environmental sciences ,GE1-350 ,Meteorology. Climatology ,QC851-999 - Abstract
Climate model projections of future North Atlantic storm track changes under global warming are very uncertain, with models showing a variety of responses. Atmospheric storms force storm surges which are a major contributor to coastal flooding hazard in the UK, and so it is important to know how this process might be influenced by climate change—not only what future is probable, but what is possible? As a contribution to answering that question, we drive a simplified model of the north-west European coastal shelf waters with atmospheric forcing taken from climate simulations with HadGEM3-GC3-MM (1/4 degree ocean, approx. 60 km atmosphere in mid-latitudes) which exhibit a substantial weakening of the Atlantic Meridional Overturning Circulation (AMOC). The first is a ‘hosing’ simulation in which a rapid shut-down of the AMOC is induced by modelling the addition of freshwater to the North Atlantic. The second is the HadGEM3 GC3.05 perturbed parameter ensemble simulation under Representative Concentration Pathway 8.5 (RCP 8.5) which was used to inform the UK Climate Projections 2018 (UKCP18). This model has a high climate sensitivity and exhibits substantial weakening of the AMOC. We find substantial simulated increases at some sites: up to about 25% increase in the expected annual maximum meteorological component of the storm surge. In both the hosing simulation and the ensemble simulation, the greatest projected increases are seen at some west coast sites, consistent with strengthening of the strongest westerly winds. On the south-east coast, projected changes are smaller in the hosing simulation and generally negative in the ensemble simulation. The ensemble simulation shows a decrease in the strongest northerly winds as well as the growth in the westerlies. Overall, these low-likelihood increases over the 21st century associated with storminess are smaller than the likely contribution from mean sea-level rise over the same period, but, importantly, larger than the so-called “high-end” changes associated with storminess that were reported in UKCP18.
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- 2024
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8. A framework for estuarine future sea-level scenarios: Response of the industrialised Elbe estuary to projected mean sea level rise and internal variability
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Johannes Pein, Joanna Staneva, Bernhard Mayer, Matthew D. Palmer, and Corinna Schrum
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dynamical downscaling ,sea level rise (SLR) ,estuarine dynamics ,internal variability ,local climate protection ,human intervention ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
In this study, we apply probabilistic estimates of mean sea level (MSL) rise and a sub-set of regional climate model ensemble simulations to force a numerical model of the southern North Sea, downscaling projected sea level variability to the Elbe estuary that serves as a prototype for an industrialised meso-tidal estuary. The specific forcing combination enables a localised projection of future estuarine hydrodynamics accounting for the spread of projected global sea level rise and the spread of the regional climate projection due to internal variability. Under the applied high-emission scenario, the Elbe estuary shows high decadal rates of mean water level (MWL) rise beyond 19 mm y-1, increase in the tidal range of up to 14 mm y-1 and increase in extreme water levels of up to 18 mm y-1. The bandwidth of the estuarine response is also high. For example, the range of average monthly extreme water levels is up to 0.57 m due to the spread of projected global sea level rise, up to 0.58 m due to internal variability whereas seasonal range attains 1.99 m locally. In the lower estuary, the spread of projected global sea level rise dominates over internal variability. Internal variability, represented by ensemble spread, notably impacts the range of estuarine water levels and tidal current asymmetry in the shallow upper estuary. This area demonstrates large seasonal fluctuations of MWLs, the M2 tidal amplitude and monthly extreme water levels. On the monthly and inter-annual time scales, the MWL and M2 amplitude reveal opposite trends, indicative of a locally non-linear response to the decadal MSL rise enforced at the open boundary. Overall, imposed by the climate projections decadal change and MSL rise enhance the horizontal currents and turbulent diffusivities whereas internal variability locally mitigates sea level rise–driven changes in the water column. This work establishes a framework for providing consistent regionalised scenario-based climate change projections for the estuarine environment to support sustainable adaptation development.
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- 2023
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9. Efficient Online String Matching through Linked Weak Factors.
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Matthew N. Palmer, Simone Faro, and Stefano Scafiti
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- 2023
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10. The evolution of 21st century sea-level projections from IPCC AR5 to AR6 and beyond
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Aimée B.A. Slangen, Matthew D. Palmer, Carolina M.L. Camargo, John A. Church, Tamsin L. Edwards, Tim H.J. Hermans, Helene T. Hewitt, Gregory G. Garner, Jonathan M. Gregory, Robert E. Kopp, Victor Malagon Santos, and Roderik S.W. van de Wal
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Sea-level changes ,Numerical modelling ,Climate change ,Coastal change ,Harbors and coast protective works. Coastal engineering. Lighthouses ,TC203-380 ,Oceanography ,GC1-1581 - Abstract
Sea-level science has seen many recent developments in observations and modelling of the different contributions and the total mean sea-level change. In this overview, we discuss (1) the evolution of the Intergovernmental Panel on Climate Change (IPCC) projections, (2) how the projections compare to observations and (3) the outlook for further improving projections. We start by discussing how the model projections of 21st century sea-level change have changed from the IPCC AR5 report (2013) to SROCC (2019) and AR6 (2021), highlighting similarities and differences in the methodologies and comparing the global mean and regional projections. This shows that there is good agreement in the median values, but also highlights some differences. In addition, we discuss how the different reports included high-end projections. We then show how the AR5 projections (from 2007 onwards) compare against the observations and find that they are highly consistent with each other. Finally, we discuss how to further improve sea-level projections using high-resolution ocean modelling and recent vertical land motion estimates.
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- 2023
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11. A solution for autonomous, adaptive monitoring of coastal ocean ecosystems: Integrating ocean robots and operational forecasts
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David A. Ford, Shenan Grossberg, Gianmario Rinaldi, Prathyush P. Menon, Matthew R. Palmer, Jozef Skákala, Tim Smyth, Charlotte A. J. Williams, Alvaro Lorenzo Lopez, and Stefano Ciavatta
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autonomous observations ,operational forecasting ,ocean gliders ,data assimilation ,phytoplankton bloom ,smart observing system ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
This study presents a proof-of-concept for a fully automated and adaptive observing system for coastal ocean ecosystems. Such systems present a viable future observational framework for oceanography, reducing the cost and carbon footprint of marine research. An autonomous ocean robot (an ocean glider) was deployed for 11 weeks in the western English Channel and navigated by exchanging information with operational forecasting models. It aimed to track the onset and development of the spring phytoplankton bloom in 2021. A stochastic prediction model combined the real-time glider data with forecasts from an operational numerical model, which in turn assimilated the glider observations and other environmental data, to create high-resolution probabilistic predictions of phytoplankton and its chlorophyll signature. A series of waypoints were calculated at regular time intervals, to navigate the glider to where the phytoplankton bloom was most likely to be found. The glider successfully tracked the spring bloom at unprecedented temporal resolution, and the adaptive sampling strategy was shown to be feasible in an operational context. Assimilating the real-time glider data clearly improved operational biogeochemical forecasts when validated against independent observations at a nearby time series station, with a smaller impact at a more distant neighboring station. Remaining issues to be addressed were identified, for instance relating to quality control of near-real time data, accounting for differences between remote sensing and in situ observations, and extension to larger geographic domains. Based on these, recommendations are made for the development of future smart observing systems.
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- 2022
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12. Cost-Effectiveness Models of Proton Therapy for Head and Neck: Evaluating Quality and Methods to Date
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Danmeng Huang, PhD, Steven J. Frank, MD, Vivek Verma, MD, NikhilG. Thaker, MD, Eric D. Brooks, MD, MHS, Matthew B. Palmer, MBA, RossF. Harrison, MD, MPH, Ashish A. Deshmukh, PhD, MPH, and Matthew S. Ning, MD, MPH
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Medical physics. Medical radiology. Nuclear medicine ,R895-920 ,Nuclear and particle physics. Atomic energy. Radioactivity ,QC770-798 - Abstract
Purpose: Proton beam therapy (PBT) is associated with less toxicity relative to conventional photon radiotherapy for head-and-neck cancer (HNC). Upfront delivery costs are greater, but PBT can provide superior long-term value by minimizing treatmentrelated complications. Cost-effectiveness models (CEMs) estimate the relative value of novel technologies (such as PBT) as compared with the established standard of care. However, the uncertainties of CEMs can limit interpretation and applicability. This review serves to (1) assess the methodology and quality of pertinent CEMs in the existing literature, (2) evaluate their suitability for guiding clinical and economic strategies, and (3) discuss areas for improvement among future analyses. Materials and Methods: PubMed was queried for CEMs specific to PBT for HNC. General characteristics, modeling information, and methodological approaches were extracted for each identified study. Reporting quality was assessed via the Consolidated Health Economic Evaluation Reporting Standards 24-item checklist, whereas methodologic quality was evaluated via the Philips checklist. The Cooper evidence hierarchy scale was employed to analyze parameter inputs referenced within each model. Results: At the time of study, only 4 formal CEMs specific to PBT for HNC had been published (2005, 2013, 2018, 2020). The parameter inputs among these various Markov cohort models generally referenced older literature, excluding many clinically relevant complications and applying numerous hypothetical assumptions for toxicity states, incorporating inputs from theoretical complication-probability models because of limited availability of direct clinical evidence. Case numbers among study cohorts were low, and the structural design of some models inadequately reflected the natural history of HNC. Furthermore, cost inputs were incomplete and referenced historic figures. Conclusion: Contemporary CEMs are needed to incorporate modern estimates for toxicity risks and costs associated with PBT delivery, to provide a more accurate estimate of value, and to improve their clinical applicability with respect to PBT for HNC.
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- 2021
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13. Comparing the hydrological performance of an irrigated native vegetation green roof with a conventional Sedum spp. green roof in New York City
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Nandan H. Shetty, Robert M. Elliott, Mark Wang, Matthew I. Palmer, and Patricia J. Culligan
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Medicine ,Science - Abstract
The objective of this study was to compare the hydrological performance of an irrigated, 127 mm deep green roof, planted with vegetation native to the New York City area, to a conventional, non-irrigated, 100 mm deep green roof, planted with drought-tolerant Sedum spp. Four years of climate and runoff data from both green roofs were analyzed to determine seasonal stormwater retention. Empirical relationships between rainfall and runoff were developed for both roofs, and applied to historical rainfall data in order to compare stormwater retention values for different rainfall depths. Crop coefficients for the vegetation on each green roof were estimated using the soil moisture extraction function. This function was also used to estimate monthly evapotranspiration. Despite being irrigated, the green roof with native vegetation retained more stormwater per annum (64%) than the non-irrigated green roof planted with Sedum spp. (54%). The green roof planted with native vegetation also had approximately twice the crop coefficient (1.13) than the green roof planted with Sedum spp. (0.57), indicating that the New York City native plants transpire more stormwater than the Sedum spp. plants given certain climate and substrate moisture conditions. Overall, the results of the study indicate that, for the New York City climate region, irrigated green roofs of native vegetation have the capacity to better manage stormwater than non-irrigated green roofs planted with drought-tolerant succulents.
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- 2022
14. The evolution of UK sea-level projections
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Jennifer H Weeks, Fai Fung, Benjamin J Harrison, and Matthew D Palmer
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sea-level projections ,climate change ,IPCC AR6 ,UK climate projections ,UKCP18 ,coastal climate services ,Environmental sciences ,GE1-350 ,Meteorology. Climatology ,QC851-999 - Abstract
The methods used to generate process-based global and local mean sea-level projections have evolved substantially over the last fifteen years, including improved process understanding, advances in ice-sheet modelling, the use of emulators and further development of high-end scenarios. During this time, two sets of UK national sea-level projections have been generated as part of the UK Climate Projections in 2009 (UKCP09; Lowe et al 2009) and in 2018 (UKCP18; Palmer et al 2018b). UKCP18 presented local mean sea-level projections for the UK coastline for the 21st century rooted in Coupled Model Intercomparison Project Phase 5 (CMIP5) models and in methods used in the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5), with an emulator-based methodology to provide extended projections to 2300 (Palmer et al 2018a; 2020). We compare UKCP18 global and local mean sea-level projections with those presented in the IPCC Sixth Assessment Report (AR6, IPCC 2021a ). We find the likely range projections (characterising the central two-thirds of the distribution) are broadly similar at 2150 to within 0.1 m, except at Edinburgh, where the maximum difference is 0.22 m under medium emissions. Differences arise due to higher contributions from sterodynamic processes and the Antarctic ice sheet, and higher or lower vertical land movement, in AR6 compared to UKCP18. We also compare high-end sea-level rise estimates, presented in AR6 and UKCP09, finding reasonable global and UK local agreement over the 21st century. We explore future paths for UK sea-level science considering both user needs for information and developments in modelling capability. Future UK sea-level projections would benefit from updated high-end sea-level rise scenarios which extend beyond 2100 and continued efforts to build understanding of observed sea-level change drivers. Alongside close collaboration with user groups this would enhance the utility of local sea-level projections by UK coastal practitioners and decision-makers.
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- 2023
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15. A Perspective on Balance and the Role of Law
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Matthew SR Palmer
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This article provides an overview of the "Roles and Perspectives in the Law" conference held in honour of the Rt Hon Sir Ivor Richardson and discusses the themes running through various areas of law by exploring the notion of balance. The varied perspectives in the conference papers demonstrate that, where interests are in opposition to each other, the law that regulates strikes a balance between them at some point. Palmer explores this idea through well-established "black-letter" law (such as employment, taxation, and commercial law) and the less established "red-letter" law (such as human rights, indigenous peoples' rights, and constitutional design). It is argued that judges have a crucial role to play in striking a balance in both categories of law. The author concludes that, whether it is black- or red-letter law, it is human behaviour that is being regulated; therefore, one must be careful not to divide human behaviour into neat categorical boxes.
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- 2023
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16. Nitrogen fixation responds to soil nitrogen at low but not high light in two invasive understory species
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Colleen B. Schmidt, Jennifer L. Funk, Amelia A. Wolf, Palani R. Akana, Matthew I. Palmer, and Duncan N. L. Menge
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Ecology ,Plant Science ,Ecology, Evolution, Behavior and Systematics - Published
- 2023
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17. Microbial Composition and Functional Diversity Differ Across Urban Green Infrastructure Types
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Aman S. Gill, Kai Purnell, Matthew I. Palmer, Jaime Stein, and Krista L. McGuire
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microbial ecology ,community assembly ,functional diversity ,metagenomics ,microbial biogeography ,urban ecology ,Microbiology ,QR1-502 - Abstract
Functional and biogeographical properties of soil microbial communities in urban ecosystems are poorly understood despite their role in metabolic processes underlying valuable ecosystem services. The worldwide emergence of engineered habitats in urban landscapes—green roofs, bioswales, and other types of soil-based green infrastructure—highlights the importance of understanding how environmental changes affect the community assembly processes that shape urban microbial diversity and function. In this study we investigated (1) whether engineered green roofs and bioswales in New York City had distinct microbial community composition and trait-associated diversity compared to non-engineered soils in parks and tree pits, and (2) if these patterns were consistent with divergent community assembly processes associated with engineered specifications of green infrastructure habitats not present in conventional, non-engineered green infrastructure; specifically, tree pit and park lawn soils. We found that green roofs and bioswales each had distinct bacterial and fungal communities, but that community composition and diversity were not significantly associated with geographic distance, suggesting that the processes structuring these differences are related to aspects of the habitats themselves. Bioswales, and to a lesser extent green roofs, also contained increased functional potential compared to conventional GI soils, based on the diversity and abundance of taxa associated with nitrogen cycling, biodegradation, decomposition, and traits positively associated with plant growth. We discuss these results in the context of community assembly theory, concluding that urban soil microbial community composition and diversity in engineered habitats are driven largely by environmental filtering, whereas stochastic processes are more important among non-engineered soils.
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- 2020
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18. Worsening membranous nephropathy in a patient with GIST treated with sunitinib
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Shahrzad Zonoozi, Teitelbaum Ursina, Matthew B. Palmer, and Abdallah S. Geara
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medicine.medical_specialty ,Thrombotic microangiopathy ,Proteinuria ,Nephrotic Syndrome ,GiST ,Sunitinib ,business.industry ,Gastrointestinal Stromal Tumors ,General Medicine ,medicine.disease ,Gastroenterology ,Glomerulonephritis, Membranous ,Membranous nephropathy ,Internal medicine ,medicine ,Humans ,Rituximab ,Hypoalbuminemia ,medicine.symptom ,business ,Nephrotic syndrome ,medicine.drug ,Aged ,Autoantibodies - Abstract
Tyrosine kinase inhibitors (TKI) are anticancer agents widely used for a variety of malignancies including gastrointestinal stromal tumours (GIST). Although generally well-tolerated, TKIs have been associated with a number of adverse events including hypertension, proteinuria and nephrotic syndrome. We present the case of a 70-year-old patient with metastatic GIST on long-standing sunitinib who developed hypertension, oedema and hypoalbuminemia with a rising serum creatinine and was found to have nephrotic syndrome. Workup revealed elevated antiphospholipase A2 receptor (PLA2R) antibody IgG titres and a kidney biopsy confirmed PLA2R-positive membranous nephropathy without findings of thrombotic microangiopathy. Cessation of sunitinib led to reduction in anti-PLA2R antibody IgG titres while resumption, due to concern for cancer progression, led to worsening symptoms. Treatment with rituximab led to undetectable anti-PLA2R IgG titres. We highlight the importance of maintaining a systematic approach for evaluating nephrotic syndrome and provide a case showing that TKIs can exacerbate underlying nephrotic syndrome.
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- 2023
19. Improved Infilling of Missing Metadata from Expendable Bathythermographs (XBTs) Using Multiple Machine Learning Methods
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Stephen Haddad, Rachel E. Killick, Matthew D. Palmer, Mark J. Webb, Rachel Prudden, Francesco Capponi, and Samantha V. Adams
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Atmospheric Science ,Ocean Engineering - Abstract
Historical in situ ocean temperature profile measurements are important for a wide range of ocean and climate research activities. A large proportion of the profile observations have been recorded using expendable bathythermographs (XBTs), and required bias corrections for use in climate change studies. It is generally accepted that the bias, and therefore bias correction, depends on the type of XBT used. However, poor historical metadata collection practices mean the XBT probe type information is often missing, for 59% of profiles between 1967 and 2000, limiting the development of reliable bias corrections. We develop a process of estimating missing instrument type metadata (the combination of both model and manufacturer) systematically, constructing a machine learning pipeline based on thorough data exploration to inform these choices. The predicted instrument type, where missing, will facilitate improved XBT bias corrections. The new approach improves the accuracy of the XBT type classification compared to previous approaches from a recall value of 0.75–0.94. We also develop an approach to account for the uncertainty associated with metadata assignments using ensembles of decision trees, which could feed into an ensemble approach to creating ocean temperature datasets. We describe the challenges arising from the nature of the dataset in applying standard machine learning techniques to the problem. We have implemented this in a portable, reproducible way using standard data science tools, with a view to these techniques being applied to other similar problems in climate science.
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- 2022
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20. Microbial Communities in Bioswale Soils and Their Relationships to Soil Properties, Plant Species, and Plant Physiology
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Olivia L. Brodsky, Katherine L. Shek, Devin Dinwiddie, Sarah G. Bruner, Aman S. Gill, Jessica M. Hoch, Matthew I. Palmer, and Krista L. McGuire
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combined sewage overflow ,urban green infrastructure ,bioswale ,plant functional traits ,soil microbes ,plant-soil relations ,Microbiology ,QR1-502 - Abstract
Bioswales and other forms of green infrastructure can be effective means to reduce environmental stresses in urban ecosystems; however, few studies have evaluated the ecology of these systems, or the role that plant selection and microbial assembly play in their function. For the current study, we examined the relationship between plant transpiration rates for five commonly planted herbaceous species in three bioswales in New York City, as well as bioswale soil microbial composition and soil chemistry. Soils were sampled near individual plants, with distinction made between upper (bioswale inlet) and lower slopes (bioswale outlet). We found high variation in transpiration rates across species, and that Nepeta × faassenii was the highest conductor (13.65 mmol H2O m–2s–1), while Panicum virgatum was the lowest conductor (2.67 mmol H2O m–2s–1) (p < 0.001). There was significant variation in percent N of leaves and soil, which did not relate to the higher water conductance in bioswales. Significantly higher C, N, and water content on the high end of bioswale slopes suggest storm water run-off is mostly absorbed on the inlet side. Bacterial and fungal communities were significantly clustered by bioswale and by plant species within each bioswale implying there are micro-environmental controls on the soil microbial composition, and that plant composition matters for microbial assemblages within bioswales. Plants with higher transpiration rates were associated with greater fungal and bacterial diversity at the level of the bioswale and at scale of the individual plant, suggesting a possible link between plant physiological traits and soil microbial communities. These data suggest that the specific plant palette selected for planting bioswales can have deterministic effects on the surrounding microbial communities which may further influence functions such as transpiration and nutrient cycling. These results may have implications for bioswale management to improve urban water quality and reduce stress on sewage systems after storm events by revising plant species palette selection based on the functional consequences of plant-microbial associations in engineered green infrastructure.
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- 2019
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21. Measuring Global Ocean Heat Content to Estimate the Earth Energy Imbalance
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Benoit Meyssignac, Tim Boyer, Zhongxiang Zhao, Maria Z. Hakuba, Felix W. Landerer, Detlef Stammer, Armin Köhl, Seiji Kato, Tristan L’Ecuyer, Michael Ablain, John Patrick Abraham, Alejandro Blazquez, Anny Cazenave, John A. Church, Rebecca Cowley, Lijing Cheng, Catia M. Domingues, Donata Giglio, Viktor Gouretski, Masayoshi Ishii, Gregory C. Johnson, Rachel E. Killick, David Legler, William Llovel, John Lyman, Matthew Dudley Palmer, Steve Piotrowicz, Sarah G. Purkey, Dean Roemmich, Rémy Roca, Abhishek Savita, Karina von Schuckmann, Sabrina Speich, Graeme Stephens, Gongjie Wang, Susan Elisabeth Wijffels, and Nathalie Zilberman
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ocean heat content ,sea level ,ocean mass ,ocean surface fluxes ,ARGO ,altimetry ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
The energy radiated by the Earth toward space does not compensate the incoming radiation from the Sun leading to a small positive energy imbalance at the top of the atmosphere (0.4–1 Wm–2). This imbalance is coined Earth’s Energy Imbalance (EEI). It is mostly caused by anthropogenic greenhouse gas emissions and is driving the current warming of the planet. Precise monitoring of EEI is critical to assess the current status of climate change and the future evolution of climate. But the monitoring of EEI is challenging as EEI is two orders of magnitude smaller than the radiation fluxes in and out of the Earth system. Over 93% of the excess energy that is gained by the Earth in response to the positive EEI accumulates into the ocean in the form of heat. This accumulation of heat can be tracked with the ocean observing system such that today, the monitoring of Ocean Heat Content (OHC) and its long-term change provide the most efficient approach to estimate EEI. In this community paper we review the current four state-of-the-art methods to estimate global OHC changes and evaluate their relevance to derive EEI estimates on different time scales. These four methods make use of: (1) direct observations of in situ temperature; (2) satellite-based measurements of the ocean surface net heat fluxes; (3) satellite-based estimates of the thermal expansion of the ocean and (4) ocean reanalyses that assimilate observations from both satellite and in situ instruments. For each method we review the potential and the uncertainty of the method to estimate global OHC changes. We also analyze gaps in the current capability of each method and identify ways of progress for the future to fulfill the requirements of EEI monitoring. Achieving the observation of EEI with sufficient accuracy will depend on merging the remote sensing techniques with in situ measurements of key variables as an integral part of the Ocean Observing System.
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- 2019
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22. Evolving the Physical Global Ocean Observing System for Research and Application Services Through International Coordination
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Bernadette M. Sloyan, John Wilkin, Katherine Louise Hill, Maria Paz Chidichimo, Meghan F. Cronin, Johnny A. Johannessen, Johannes Karstensen, Marjolaine Krug, Tong Lee, Eitarou Oka, Matthew D. Palmer, Benjamin Rabe, Sabrina Speich, Karina von Schuckmann, Robert A. Weller, and Weidong Yu
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observing system evaluation ,observing system design ,sustained observations ,observing networks ,observation platforms ,climate ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Climate change and variability are major societal challenges, and the ocean is an integral part of this complex and variable system. Key to the understanding of the ocean’s role in the Earth’s climate system is the study of ocean and sea-ice physical processes, including its interactions with the atmosphere, cryosphere, land, and biosphere. These processes include those linked to ocean circulation; the storage and redistribution of heat, carbon, salt and other water properties; and air-sea exchanges of heat, momentum, freshwater, carbon, and other gasses. Measurements of ocean physics variables are fundamental to reliable earth prediction systems for a range of applications and users. In addition, knowledge of the physical environment is fundamental to growing understanding of the ocean’s biogeochemistry and biological/ecosystem variability and function. Through the progress from OceanObs’99 to OceanObs’09, the ocean observing system has evolved from a platform centric perspective to an integrated observing system. The challenge now is for the observing system to evolve to respond to an increasingly diverse end user group. The Ocean Observations Physics and Climate panel (OOPC), formed in 1995, has undertaken many activities that led to observing system-related agreements. Here, OOPC will explore the opportunities and challenges for the development of a fit-for-purpose, sustained and prioritized ocean observing system, focusing on physical variables that maximize support for fundamental research, climate monitoring, forecasting on different timescales, and society. OOPC recommendations are guided by the Framework for Ocean Observing which emphasizes identifying user requirements by considering time and space scales of the Essential Ocean Variables. This approach provides a framework for reviewing the adequacy of the observing system, looking for synergies in delivering an integrated observing system for a range of applications and focusing innovation in areas where existing technologies do not meet these requirements.
- Published
- 2019
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23. Endorsement of scientific inquiry promotes better evaluation of climate policy evidence
- Author
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Jessica E. Hughes, James D. Sauer, Aaron Drummond, Laura E. Brumby, and Matthew A. Palmer
- Subjects
Atmospheric Science ,Global and Planetary Change - Abstract
Public and scientific consensus about climate change do not align. Problematically, higher scientific knowledge has been associated with lower acceptance of climate information among those with more conservative socio-political ideologies. Positive attitudes towards science can attenuate this effect. We investigated the association between endorsement of scientific inquiry (ESI) and decision-making with scientific evidence about climate policies. Participants rated support for 16 climate policies accompanied by weaker or stronger evidence. In study 1 (N = 503), higher ESI was associated with greater discernment between strongly and weakly evidenced climate policies, irrespective of worldview. In studies 2 (N = 402) and 3 (N = 600), an ESI intervention improved discrimination, and, in study 3, increased ESI specifically for hierarchical/individualistic participants. Unlike ESI, the link between scientific knowledge and evaluation of evidence was influenced by worldview. Increasing ESI might improve the evaluation of scientific evidence and increase public support for evidence-based climate policies.
- Published
- 2023
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24. Greater Target or Lure Variability? An Exploration on the Effects of Stimulus Types and Memory Paradigms
- Author
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Haomin Chen, Andrew Heathcote, James D. Sauer, Matthew A. Palmer, and Adam F Osth
- Abstract
In recognition memory the variance of the target distribution is almost universally found to be greater than that of the lure distribution. However, these estimates commonly come from long-term memory paradigms where words are used as stimuli. Two exceptions to this rule have found evidence for greater lure variability: a short-term memory task (Yotsumoto et al., 2008) and in an eyewitness memory paradigm (Wixted et al., 2018). In the presentwork, we conducted a series of recognition memory experiments using different stimulus (faces vs. words) along with different paradigms (long-term vs. short-term) to evaluate whether either of these conditions would result in greater variability in lure items. Greater target variability was observed across stimulus types and memory paradigms. This suggests that factors other than stimuli and retention interval might be responsible for cases where variability is less for targets than lures.
- Published
- 2023
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- View/download PDF
25. Indicators of Global Climate Change 2022: Annual update of large-scale indicators of the state of the climate system and the human influence
- Author
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Piers Maxwell Forster, Christopher J. Smith, Tristram Walsh, William F. Lamb, Matthew D. Palmer, Karina von Schuckmann, Blair Trewin, Myles Allen, Robbie Andrew, Arlene Birt, Alex Borger, Tim Boyer, Jiddu A. Broersma, Lijing Cheng, Frank Dentener, Pierre Friedlingstein, Nathan Gillett, José M. Gutiérrez, Johannes Gütschow, Mathias Hauser, Bradley Hall, Masayoshi Ishii, Stuart Jenkins, Robin Lamboll, Xin Lan, June-Yi Lee, Colin Morice, Christopher Kadow, John Kennedy, Rachel Killick, Jan Minx, Vaishali Naik, Glen Peters, Anna Pirani, Julia Pongratz, Aurélien Ribes, Joeri Rogelj, Debbie Rosen, Carl-Friedrich Schleussner, Sonia Seneviratne, Sophie Szopa, Peter Thorne, Robert Rohde, Maisa Rojas Corradi, Dominik Schumacher, Russell Vose, Kirsten Zickfeld, Xuebin Zhang, Valérie Masson-Delmotte, and Panmao Zhai
- Abstract
Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under the United Nations Framework Convention on Climate Change (UNFCCC), including the first global stocktake under the Paris Agreement that will conclude at COP28 in December 2023. Evidence-based decision making needs to be informed by up-to-date and timely information on key indicators of the state of the climate system and of the human influence on the global climate system. However, successive IPCC reports are published at intervals of 5–10 years, creating potential for an information gap between report cycles. We base this update on the assessment methods used in the IPCC Sixth Assessment Report (AR6) Working Group One (WGI) report, updating the monitoring datasets and to produce updated estimates for key climate indicators including emissions, greenhouse gas concentrations, radiative forcing, surface temperature changes, the Earth’s energy imbalance, warming attributed to human activities, the remaining carbon budget and estimates of global temperature extremes. The purpose of this effort, grounded in an open data, open science approach, is to make annually updated reliable global climate indicators available in the public domain (https://doi.org/10.5281/zenodo.7883758, Smith et al., 2023). As they are traceable and consistent with IPCC report methods, they can be trusted by all parties involved in UNFCCC negotiations and help convey wider understanding of the latest knowledge of the climate system and its direction of travel. The indicators show that human induced warming reached 1.14 [0.9 to 1.4] °C over the 2013–2022 period and 1.26 [1.0 to 1.6] °C in 2022. Human induced warming is increasing at an unprecedented rate of over 0.2 °C per decade. This high rate of warming is caused by a combination of greenhouse gas emissions being at an all-time high of 57 ± 5.6 GtCO2e over the last decade, as well as reductions in the strength of aerosol cooling. Despite this, there are signs that emission levels are starting to stabilise, and we can hope that a continued series of these annual updates might track a real-world change of direction for the climate over this critical decade.
- Published
- 2023
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26. Evaluation of Technical Performance of Ultrasound-Guided Procedures through Hand Motion Analysis: an Exploration of Motion Metrics
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Jeffrey L. Weinstein, Hamza Ali, Ammar Sarwar, Joseph R. Dadour, Olga R. Brook, John D. Mitchell, Robina Matyal, Matthew R. Palmer, Christopher MacLellan, and Muneeb Ahmed
- Subjects
Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine - Published
- 2023
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27. Design of Financial Incentive Programs for Smoking Cessation: A Discrete Choice Experiment
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Rachel J Breen, Matthew A Palmer, Mai Frandsen, and Stuart G Ferguson
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Adult ,Motivation ,Smokers ,Reward ,Public Health, Environmental and Occupational Health ,Humans ,Smoking Cessation ,Delivery of Health Care - Abstract
Introduction Financial incentive programs promote smoking cessation. However, the incentive amount which should be provided—and how this may interact with other program characteristics—is unknown. The objective of this study was to evaluate the influence of the design of incentive programs for smoking cessation on current smokers’ perceptions of programs and willingness to enroll. Method An online discrete choice experiment was conducted amongst adult current smokers residing in the United Kingdom (N = 430). Hypothetical incentive programs were described using five attributes (incentive amount, incentive type, frequency of sessions, reward schedules, program location). Participants responded to a series of choice sets comprised of two hypothetical programs. For each set, participants selected their preferred program. They then specified whether they would enroll in their preferred program if it were available. Analyses also considered the effect of participant income on preferences. Results Overall, participants preferred higher amounts over lower amounts, cash over vouchers, healthcare settings over workplaces, and consistent amounts over an escalating schedule. One session per week was the most preferred session frequency. Willingness to enroll increased quadratically with the incentive amount, although this increase slowed for higher amounts. Although middle- and high-income smokers preferred slightly higher amounts (cf. low-income participants), enrollment choices did not differ by income. Conclusion The characteristics of incentive programs influence smokers’ perceptions of programs and willingness to enroll. Higher amounts may encourage greater enrollment rates, but there will likely be a ceiling point beyond which increasing the incentive amount does not meaningfully increase enrollments. Implications There is increasing evidence incentive programs aid smoking cessation. Yet, the variety in previous program designs means how to best structure programs, including optimal incentive amount and the impact of the design on potential enrollment rates, remains unclear. This study suggests enrollments may be highest when incentive amounts are higher, rewards of a consistent amount in cash are provided, and sessions occur once per week in a healthcare setting. Although higher-income participants may desire higher incentive amounts compared to lower-income participants, this may not translate into differences in willingness to enroll.
- Published
- 2022
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28. Unbiased Human Kidney Tissue Proteomics Identifies Matrix Metalloproteinase 7 as a Kidney Disease Biomarker
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Daigoro Hirohama, Amin Abedini, Salina Moon, Aditya Surapaneni, Simon T. Dillon, Allison Vassalotti, Hongbo Liu, Tomohito Doke, Victor Martinez, Zaipul Md Dom, Anil Karihaloo, Matthew B. Palmer, Josef Coresh, Morgan E. Grams, Monika A. Niewczas, and Katalin Susztak
- Subjects
Nephrology ,General Medicine - Published
- 2023
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29. Data from Yin Yang 1 Regulates the Expression of Snail through a Distal Enhancer
- Author
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Jeremy M. Boss, Paul A. Wade, Hyesuk Yoon, John C. Cooper, Parimal Majumder, and Matthew B. Palmer
- Abstract
Expression of the Snail gene is required for the epithelial-mesenchymal transitions that accompany mammalian gastrulation, neural crest migration, and organ formation. Pathologic expression of Snail contributes to the migratory capacity of invasive tumors, including melanomas. To investigate the mechanism of Snail up-regulation in human melanoma cells, a conserved enhancer located 3′ of the Snail gene was analyzed. An overlapping Ets and yin yang 1 (YY1) consensus sequence, in addition to a SOX consensus sequence, was required for full enhancer activity. Proteins specifically binding these sequences were detected by electrophoretic mobility shift assay. The Ets/YY1 binding activity was purified by DNA-affinity chromatography and identified as YY1. Although ubiquitously expressed, YY1 was bound at the Snail 3′ enhancer in vivo in Snail-expressing cells but not in cells that did not express Snail. Knockdown of YY1 in A375 cells led to decreased Snail expression. These results identify a role for YY1 in regulating transcription of Snail in melanoma cells through binding to the Snail 3′ enhancer. (Mol Cancer Res 2009;7(2):221–9)
- Published
- 2023
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30. Supplementary Figure S1 from Yin Yang 1 Regulates the Expression of Snail through a Distal Enhancer
- Author
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Jeremy M. Boss, Paul A. Wade, Hyesuk Yoon, John C. Cooper, Parimal Majumder, and Matthew B. Palmer
- Abstract
Supplementary Figure S1 from Yin Yang 1 Regulates the Expression of Snail through a Distal Enhancer
- Published
- 2023
- Full Text
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31. Effect of Standing or Walking at a Workstation on Cognitive Function: A Randomized Counterbalanced Trial.
- Author
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Christina Bantoft, Mathew J. Summers, Peter J. Tranent, Matthew A. Palmer, P. Dean Cooley, and Scott J. Pedersen
- Published
- 2016
- Full Text
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32. Malignant Melanoma Arising in a Primary Mediastinal Teratoma: Case Report of a Rare Phenomenon and Review of the Literature
- Author
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Youssef Khafateh, Christopher Preciado, David E. Elder, Leslie A. Litzky, David J. Vaughn, Sunil Singhal, Priti Lal, and Matthew B. Palmer
- Subjects
General Medicine - Published
- 2022
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33. Cybernationalism: Terrorism, Political Activism, and National Identity Creation in Virtual Communities and Social Media.
- Author
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Matthew F. Palmer
- Published
- 2012
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34. The Framework for Assessing Changes To Sea-level (FACTS) v1.0-rc: A platform for characterizing parametric and structural uncertainty in future global, relative, and extreme sea-level change
- Author
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Robert E. Kopp, Gregory G. Garner, Tim H. J. Hermans, Shantenu Jha, Praveen Kumar, Aimée B. A. Slangen, Matteo Turilli, Tamsin L. Edwards, Jonathan M. Gregory, George Koubbe, Anders Levermann, Andre Merzky, Sophie Nowicki, Matthew D. Palmer, and Chris Smith
- Abstract
Future sea-level rise projections are characterized by both quantifiable uncertainty and unquantifiable, structural uncertainty. Thorough scientific assessment of sea-level rise projections requires analysis of both dimensions of uncertainty. Probabilistic sea-level rise projections evaluate the quantifiable dimension of uncertainty; comparison of alternative probabilistic methods provide an indication of structural uncertainty. Here we describe the Framework for Assessing Changes To Sea-level (FACTS), a modular platform for characterizing alternative probability distributions of global mean, regional, and extreme sea-level rise. We demonstrate its application by generating seven alternative probability distributions under multiple alternative emissions scenarios for both future global mean sea level and future relative and extreme sea level at New York City. These distributions, closely aligned with those presented in the Intergovernmental Panel on Climate Change Sixth Assessment Report, emphasize the role of the Antarctic and Greenland ice sheet as drivers of structural uncertainty in sea-level rise projections.
- Published
- 2023
- Full Text
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35. Renal Oncocytoma With Both Lymphovascular Invasion and Prominent Intracytoplasmic Vacuole-Like Spaces: A Case Report and Review of the Literature
- Author
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Matthew B. Palmer, Lauren E. Schwartz, Priti Lal, Thomas J. Guzzo, Sean R. Williamson, Anupma Nayak, Xunda Luo, and Christopher Preciado
- Subjects
Male ,Pathology ,medicine.medical_specialty ,Lymphovascular invasion ,medicine.medical_treatment ,Vacuole ,Chromophobe cell ,urologic and male genital diseases ,Pathology and Forensic Medicine ,Diagnosis, Differential ,Renal cell carcinoma ,Eosinophilic ,Biomarkers, Tumor ,medicine ,Adenoma, Oxyphilic ,Humans ,Renal oncocytoma ,Carcinoma, Renal Cell ,Aged ,business.industry ,medicine.disease ,Kidney Neoplasms ,Nephrectomy ,Vacuoles ,Immunohistochemistry ,Surgery ,Anatomy ,business - Abstract
Here we report a case of renal oncocytoma in a 68 year-old male. The diagnosis was initially made on a needle biopsy 6 years prior to the partial nephrectomy. The case is unique that in addition to the gross and microscopic features commonly seen in renal oncocytomas, both lymphovascular invasion and prominent intracytoplasmic vacuole-like spaces are also present in this tumor. Although vascular invasion is increasingly recognized as compatible with renal oncocytoma, intracytoplasmic vacuoles are a rare and unusual finding that may lead to diagnostic difficulty. The diagnosis of renal oncocytoma was confirmed after immunohistochemistry was performed to argue against succinate dehydrogenase deficient renal cell carcinoma (RCC) and chromophobe RCC. This case highlights the importance for practicing pathologists to recognize the rare co-occurrence of lymphovascular invasion and large intracytoplasmic vacuole-like spaces in renal oncocytoma. Other differential diagnoses may include emerging renal tumor entities, such as the recently-proposed eosinophilic vacuolated tumor.
- Published
- 2021
- Full Text
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36. New-Onset Proteinuria in a Patient With Schwannoma
- Author
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Liann Abu Salman, Jehan Bahrainwala, Christos Kallis, Matthew B. Palmer, and Abdallah S. Geara
- Subjects
Adult ,Male ,Pediatrics ,medicine.medical_specialty ,Proteinuria ,business.industry ,Biopsy ,MEDLINE ,Schwannoma ,Kidney ,medicine.disease ,Kidney Neoplasms ,New onset ,Diagnosis, Differential ,Text mining ,Nephrology ,medicine ,Humans ,medicine.symptom ,business ,Neurilemmoma - Published
- 2021
- Full Text
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37. Seasonal patterns of native plant cover and leaf trait variation on New York City green roofs
- Author
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Hilary S. Callahan, Eric G. Yee, Kevin L. Griffin, Matthew I. Palmer, and Sojin Lee
- Subjects
Urban Studies ,Dichanthelium clandestinum ,Ecology ,biology ,Pycnanthemum tenuifolium ,Agronomy ,Deschampsia flexuosa ,Schizachyrium scoparium ,Sorghastrum ,Green roof ,Growing season ,Plant community ,biology.organism_classification - Abstract
Plants make important contributions to green roof ecosystem service provision through evapotranspiration, canopy shading, and water retention. Because these plant communities are a critical component of green roof design and function, both seasonal and interspecific variation of these plant communities are important factors in evaluating green roof performance. This study examines variation in both species abundance and 9 leaf traits throughout the 2015 growing season of four New York City green roofs. While community composition varied significantly between each month (pANOSIM = 0.036), three major plant families (Asteraceae, Lamiaceae, and Poaceae) consistently had the greatest green cover and were present during the entirety of the growing season. For leaf traits, period of the growing season had a significant impact on most of the traits measured. Leaf thickness, leaf relative water content (RWC) and saturated water content (SWC) decreased as the growing season progressed, while leaf dry matter content (LDMC) and stomatal density increased, likely due to a seasonal decrease in rainfall as species-level variance in these water traits is low (7.40% and 0.88%, respectively). We also ranked planted and spontaneous species in accordance to both cover and functional trait values, and identified 11 species suitable for green roofs in NYC: Pycnanthemum tenuifolium (Lamiaceae), Symphiotrichum leave, Symphiotrichum pilosum, Rudbeckia hirta, Solidago odora (Asteraceae), Panicum virgatum, Sorghastrum nutrans, Schizachyrium scoparium, Dichanthelium clandestinum, Deschampsia flexuosa (Poaceae), and Oenothera biennis (Onagraceae). Understanding the temporal responses of plant communities and their constituent species is critical in optimizing green roof ecosystem services.
- Published
- 2021
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38. Using Headline Indicators to Monitor the State of Global Climate
- Author
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Blair Trewin, Anny Cazenave, Stephen Howell, Matthias Huss, Kirsten Isensee, Matthew D. Palmer, Oksana Tarasova, and Alex Vermeulen
- Subjects
Atmospheric Science - Published
- 2021
- Full Text
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39. Author response for 'Nitrogen fixation responds to soil nitrogen at low but not high light in two invasive understory species'
- Author
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null Colleen B. Schmidt, null Jennifer L. Funk, null Amelia A. Wolf, null Palani R. Akana, null Matthew I. Palmer, and null Duncan N. L. Menge
- Published
- 2022
- Full Text
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40. Application of a new net primary production methodology: a daily to annual-scale data set for the North Sea, derived from autonomous underwater gliders and satellite Earth observation
- Author
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Benjamin R. Loveday, Timothy Smyth, Anıl Akpinar, Tom Hull, Mark E. Inall, Jan Kaiser, Bastien Y. Queste, Matt Tobermann, Charlotte A. J. Williams, and Matthew R. Palmer
- Subjects
General Earth and Planetary Sciences - Abstract
Shelf seas play a key role in both the global carbon cycle and coastal marine ecosystems through the draw-down and fixing of carbon, as measured through phytoplankton net primary production (NPP). Measuring NPP in situ and extrapolating this to the local, regional, and global scale presents challenges however because of limitations with the techniques utilised (e.g. radiocarbon isotopes), data sparsity, and the inherent biogeochemical heterogeneity of coastal and open-shelf waters. Here, we introduce a new data set generated using a technique based on the synergistic use of in situ glider profiles and satellite Earth observation measurements which can be implemented in a real-time or delayed-mode system (https://doi.org/10.5285/e6974644-2026-0f94-e053-6c86abc00109; Loveday and Smyth, 2022). We apply this system to a fleet of gliders successively deployed over a 19-month time frame in the North Sea, generating an unprecedented fine-scale time series of NPP in the region. At a large scale, this time series gives close agreement with existing satellite-based estimates of NPP for the region and previous in situ estimates. What has not been elucidated before is the high-frequency, small-scale, depth-resolved variability associated with bloom phenology, mesoscale phenomena, and mixed layer dynamics.
- Published
- 2022
41. O Mio Bambino Caro
- Author
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Matthew G. Palmer
- Published
- 2022
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42. Detecting a forced signal in satellite-era sea-level change
- Author
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Kristin Richter, Benoit Meyssignac, Aimée B A Slangen, Angélique Melet, John A Church, Xavier Fettweis, Ben Marzeion, Cécile Agosta, Stefan R M Ligtenberg, Giorgio Spada, Matthew D Palmer, Christopher D Roberts, and Nicolas Champollion
- Subjects
forced trends ,internal variability ,detection ,sea-level rise ,Environmental technology. Sanitary engineering ,TD1-1066 ,Environmental sciences ,GE1-350 ,Science ,Physics ,QC1-999 - Abstract
In this study, we compare the spatial patterns of simulated geocentric sea-level change to observations from satellite altimetry over the period 1993–2015 to assess whether a forced signal is detectable. This is challenging, as on these time scales internal variability plays an important role and may dominate the observed spatial patterns of regional sea-level change. Model simulations of regional sea-level change associated with sterodynamic sea level, atmospheric loading, glacier mass change, and ice-sheet surface mass balance changes are combined with observations of groundwater depletion, reservoir storage, and dynamic ice-sheet mass changes. The resulting total geocentric regional sea-level change is then compared to independent measurements from satellite altimeter observations. The detectability of the climate-forced signal is assessed by comparing the model ensemble mean of the ‘historical’ simulations with the characteristics of sea-level variability in pre-industrial control simulations. To further minimize the impact of internal variability, zonal averages were produced. We find that, in all ocean basins, zonally averaged simulated sea-level changes are consistent with observations within sampling uncertainties associated with simulated internal variability of the sterodynamic component. Furthermore, the simulated zonally averaged sea-level change cannot be explained by internal variability alone—thus we conclude that the observations include a forced contribution that is detectable at basin scales.
- Published
- 2020
- Full Text
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43. Local Skill Development from China’s Engagement in Africa: Comparative Evidence from the Construction Sector in Ghana
- Author
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Eugene Bempong Nyantakyi, Matthew T. Palmer, and Qingwei Meng
- Subjects
Economics and Econometrics ,Significant difference ,Economics ,Survey data collection ,Marital status ,Demographic economics ,China ,Skill development ,Work experience ,Skill transfer - Abstract
Over the past decade, Chinese enterprises have made significant progress in developing new business ventures in Africa. There is ongoing debate whether these Chinese enterprises contribute to local skill development in their host countries. We utilize unique survey data from the construction sector in Ghana to examine the heterogeneity in skill transfer to local workers in Chinese-owned, other foreign, and domestic enterprises. First, our analyses illustrate that there are no significant differences in the characteristics of local employees from Chinese enterprises and those from other enterprises in terms of age, marital status, education background, work experience, and union membership. In terms of employment attributes, while workers in other enterprises on average stay longer with their employers than those working for Chinese enterprises, statistically, we do not observe any significant difference in the share of workers that receive training between Chinese and other construction enterprises. Furthermore, regression estimates suggest that compared to local enterprises, both Chinese and other foreign enterprises contribute positively to short-term general training and long-term specific training of locally hired workers. Indeed, the likelihood of receiving training, especially short-term general training, is higher for Chinese enterprise employees than those of other foreign enterprises.
- Published
- 2021
- Full Text
- View/download PDF
44. The US Peace Corps as a public diplomacy strategy
- Author
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Matthew T. Palmer, Jami A. Fullerton, and Eugene Bempong Nyantakyi
- Subjects
Marketing ,education.field_of_study ,business.industry ,Strategy and Management ,media_common.quotation_subject ,05 social sciences ,Population ,0211 other engineering and technologies ,021107 urban & regional planning ,02 engineering and technology ,Public relations ,Public diplomacy ,Friendship ,Soft power ,Political science ,0502 economics and business ,business ,education ,Inclusion (education) ,050212 sport, leisure & tourism ,Diplomacy ,Research center ,media_common ,Primary research - Abstract
The US Peace Corps has been operating programs globally since 1961 with an enduring mission toward international friendship and world peace structured around clear goals that emphasize cross-cultural learning objectives. Little is known about whether the program has a positive effect on US soft power abroad and, if so, the magnitude of that influence. This paper examines the impact of Peace Corps programming in foreign states on US public diplomacy objectives. The primary research aims to understand the relationship between indicators of a foreign population’s favorability toward the US and Peace Corps participation to determine the effects of program size as well as program presence and removal. Pew Research Center US favorability scores were analyzed alongside Peace Corps volunteer cohort sizes between years 2004 and 2016 among 20 sample countries. The findings indicate a positive and statistically significant relationship between the size of the Peace Corps volunteer cohort and US favorability. Each additional volunteer increases favorability toward the US by 0.12 points. The results are robust to the inclusion of additional soft power factors. Supplementary findings illustrate that the removal of Peace Corps programming may adversely impact favorability toward the US, establishing the negative soft power effect of ceasing participation.
- Published
- 2021
- Full Text
- View/download PDF
45. Eyewitness identifications of multiple culprits: Disconfirming feedback following one lineup decision impairs identification of another culprit
- Author
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Neil Brewer, James D. Sauer, Matthew A. Palmer, and Nathan Weber
- Subjects
Sociology and Political Science ,Social Psychology ,Policy making ,05 social sciences ,16. Peace & justice ,Witness ,Culprit ,Identification (information) ,050501 criminology ,Police investigation ,Psychology ,Law ,Social psychology ,Eyewitness identification ,0505 law - Abstract
Eyewitnesses to multiple-culprit crimes are often asked to try to identify the culprits from different lineups during a police investigation. In 2 experiments (N = 557), we show that disconfirming feedback after an identification attempt for 1 culprit can impair identification performance on a subsequent lineup for a different culprit. In each experiment, witnesses viewed a simulated, 2-culprit crime, followed by 2 police lineups: A culprit-absent lineup for 1 culprit and either a culprit-present or culprit-absent lineup for the second culprit. Following the first lineup, witnesses received disconfirming feedback or no feedback. For witnesses who correctly rejected the first lineup, disconfirming feedback impaired identification performance on the subsequent lineup. For witnesses who incorrectly chose someone from the first lineup, disconfirming feedback impaired subsequent performance when the feedback unambiguously implied poor ability to identify the culprit in the first identification test (Experiment 2) but not when it could have been interpreted as implying poor criterion setting (Experiment 1). Across both experiments, disconfirming feedback also reduced the difference in confidence between correct and incorrect identifications. These results add to evidence that postidentification feedback can affect subsequent identification performance by influencing witnesses’ beliefs about their ability to identify a culprit. Current policy recommendations state that postidentification feedback should be withheld from witnesses until confidence has been documented. These should be updated to recommend withholding feedback for longer if the witness may be asked to view additional lineups, and to ensure that lineup administrators are blind to the results of any previous lineups.
- Published
- 2021
- Full Text
- View/download PDF
46. Eyewitness identification: The complex issue of suspect-filler similarity
- Author
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Matthew A. Palmer, Neil Brewer, and Carmen A. Lucas
- Subjects
Identification (information) ,Filler (packaging) ,Sociology and Political Science ,Social Psychology ,Similarity (network science) ,Statistics ,Limited evidence ,Suspect ,Retention interval ,Psychology ,Law ,Predictive value ,Eyewitness identification - Abstract
Current guidelines for selecting lineup fillers are imprecise. Consequently, filler characteristics likely vary widely across lineups, potentially affecting identification decisions in important but unexplained ways. We report 2 experiments investigating the impact of 1 source of variation, the number of relatively high versus low similarity match-description fillers, on identification outcomes. Identifications following a retention interval of a few minutes (Experiments 1 and 2) and several weeks (Experiment 2) were examined. Increasing the number of high similarity lineup members within match-description lineups increased choosing (characterized by more filler but fewer suspect identifications), decreased accuracy and confidence and caused a poorer confidence-accuracy relationship. The changes to identification outcomes as the number of high similarity fillers increased were attributable to decreased discriminability and a relaxed criterion, with positive identifications requiring a lesser evidential discrepancy between target and fillers. There was limited evidence of guilty and innocent suspect identifications being differently affected by variations in the number of high similarity fillers and no evidence of suspect discriminability being influenced. For decisions after a short retention interval, high confidence suspect identifications were good predictors of accuracy; however, high similarity match-description fillers undermined the predictive value of high confidence suspect identifications at the long retention interval. Our results suggest that future research must explore methods for curbing variation in identification patterns resulting from uncontrolled filler characteristics. Until then it is critical that identification evidence be interpreted acknowledging that, even in lineups constructed following best practice guidelines, filler characteristics could have profoundly influenced the outcome.
- Published
- 2021
- Full Text
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47. In science we trust? Public trust in Intergovernmental Panel on Climate Change projections and accepting anthropogenic climate change
- Author
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Bruce Tranter, Libby Lester, Kerrie Foxwell-Norton, and Matthew A. Palmer
- Subjects
Arts and Humanities (miscellaneous) ,Communication ,Developmental and Educational Psychology - Abstract
One barrier to action on climate change is public trust in climate science, and projections made by climate scientists. However, climate science projections are rarely measured in public surveys. We designed survey questions based on two Intergovernmental Panel on Climate Change projections regarding global warming and coral reef decline. We gauge Australians’ trust in Intergovernmental Panel on Climate Change projections, and explore how trust in climate science is associated with accepting anthropogenic climate change. A slim majority of Australian adults trust Intergovernmental Panel on Climate Change projections, with trust correlated positively with accepting anthropogenic climate change. While partisan divisions are extant in accepting anthropogenic climate change, partisan influences are attenuated substantially after controlling for trust in Intergovernmental Panel on Climate Change projections, as trust in climate science mediates the influence of partisanship on the acceptance of anthropogenic climate change. A minority of those who accept anthropogenic climate change have low trust in Intergovernmental Panel on Climate Change projections, viewing scientists’ computer models as unreliable, or believing climate scientists benefit from overstating the impact of climate change.
- Published
- 2023
- Full Text
- View/download PDF
48. Smokers’ Perceptions of Incentivized Smoking Cessation Programs: Examining How Payment Thresholds Change With Income
- Author
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Stuart G. Ferguson, Rachel J. Breen, and Matthew A. Palmer
- Subjects
medicine.medical_treatment ,media_common.quotation_subject ,Population ,Health Promotion ,Discount points ,03 medical and health sciences ,0302 clinical medicine ,Perception ,medicine ,Humans ,030212 general & internal medicine ,education ,media_common ,Motivation ,education.field_of_study ,Smokers ,030219 obstetrics & reproductive medicine ,Public Health, Environmental and Occupational Health ,Payment ,Quadratic trend ,Incentive ,Smoking cessation ,Smoking Cessation ,Psychology ,Monetary Amount ,Demography - Abstract
Introduction Studies demonstrate that financial incentive programs increase smoking cessation. However, there is little guidance on which incentive magnitudes will ensure optimal enrollment and motivation levels. This study investigates current smokers’ perceptions of varying incentive magnitudes to identify whether there is evidence for optimal amount(s) and whether perceptions differ by income group. Methods Studies 1 (N = 56) and 2 (N = 147) were conducted online via Prolific.co. Current smokers were randomly shown multiple hypothetical incentive programs that differed only in the incentive amount offered. For each program, smokers rated its appeal and their likelihood of enrolling and predicted their motivation to quit if enrolled. Growth models were used to investigate the relationship between perspectives and the incentive amount. Results An increasing quadratic trend in smokers’ perceptions of programs as the incentive amount increased was identified. Incentive amounts beyond approximately £50–75 per week (£500–£750 total) did not significantly alter perceptions of programs. In Study 2, high-income smokers found programs significantly less appealing and motivating than low-income smokers, although no significant between-group differences were observed in the likelihood of enrollment. No significant differences were observed between low- and middle-income smokers. Conclusions Increasing the incentive amount increased smoker’s perceptions of programs. This relationship was curvilinear, meaning there may be a point beyond which further increasing the amount will not improve enrollment or motivation levels. Incentives appear equally appealing to low- and middle-income smokers; the population among whom smoking is most prevalent. Future research could explore other elements of program design and whether findings hold under real-world conditions. Implications While acknowledging that they work, policymakers frequently request information about the monetary amount needed for incentive programs to be effective, and if this differs by income level. We investigated these questions using smokers’ perceptions of hypothetical cessation programs that differed in the amount offered. An increasing quadratic trend in perceptions of programs by the amount and potential cut points was observed, suggesting a point may exist beyond which increasing the incentive will not improve perceptions of programs or enrollment levels. High-income smokers may not perceive incentives to be as appealing as other income groups, but appear equally willing to enroll.
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- 2021
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49. Analysis of Kinematic Differences in Hand Motion between Novice and Experienced Operators in IR: A Pilot Study
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Matthew R. Palmer, Salomao Faintuch, Seth A. Berkowitz, Robina Matyal, Muneeb Ahmed, Feroze Mahmood, Jeffrey L. Weinstein, Julie C. Bulman, Ammar Sarwar, Fady El-Gabalawy, and Sarah E. Schroeppel DeBacker
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medicine.medical_specialty ,Time Factors ,Radiography ,Pilot Projects ,Punctures ,Kinematics ,Radiography, Interventional ,030218 nuclear medicine & medical imaging ,Task (project management) ,03 medical and health sciences ,0302 clinical medicine ,Operator (computer programming) ,Physical medicine and rehabilitation ,medicine.artery ,Catheterization, Peripheral ,Radiologists ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Prospective Studies ,Radial artery ,Motor skill ,medicine.diagnostic_test ,business.industry ,Interventional radiology ,Motion detection ,Hand ,Biomechanical Phenomena ,Motor Skills ,030220 oncology & carcinogenesis ,Radial Artery ,Feasibility Studies ,Clinical Competence ,Cardiology and Cardiovascular Medicine ,business ,Electromagnetic Phenomena - Abstract
To prospectively validate electromagnetic hand motion tracking in interventional radiology to detect differences in operator experience using simulation.Sheath task: Six attending interventional radiologists (experts) and 6 radiology trainees (trainees) placed a wire through a sheath and performed a "pin-pull" maneuver, while an electromagnetic motion detection system recorded the hand motion. Radial task: Eight experts and 12 trainees performed palpatory radial artery access task on a radial access simulator. The trainees repeated the task with the nondominant hand. The experts were classified by their most frequent radial artery access technique as having either palpatory, ultrasound, or overall limited experience. The time, path length, and number of movements were calculated. Mann-Whitney U tests were used to compare the groups, and P.05 was considered significant.Sheath task: The experts took less time, had shorter path lengths, and used fewer movements than the trainees (11.7 seconds ± 3.3 vs 19.7 seconds ± 6.5, P.01; 1.1 m ± 0.3 vs 1.4 m ± 0.4, P.01; and 19.5 movements ± 8.5 vs 31.0 movements ± 8.0, P.01, respectively). Radial task: The experts took less time, had shorter path lengths, and used fewer movements than the trainees (24.2 seconds ± 10.6 vs 33.1 seconds ± 16.9, P.01; 2.0 m ± 0.5 vs 3.0 m ± 1.9, P.001; and 36.5 movements ± 15.0 vs 54.5 movements ± 28.0, P.001, respectively). The trainees had a shorter path length for their dominant hand than their nondominant hand (3.0 m ± 1.9 vs 3.5 m ± 1.9, P.05). The expert palpatory group had a shorter path length than the ultrasound and limited experience groups (1.8 m ± 0.4 vs 2.0 m ± 0.4 and 2.3 m ± 1.2, respectively, P.05).Electromagnetic hand motion tracking can differentiate between the expert and trainee operators for simulated interventional tasks.
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- 2021
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50. Communicating projection uncertainty and ambiguity in sea-level assessment
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Robert Kopp, Michael Oppenheimer, Jessica L O'Reilly, Sybren S Drijfhout, Tamsin L Edwards, Baylor Fox-Kemper, Gregory G Garner, Nicholas R Golledge, Tim H J Hermans, Helene T Hewitt, Benjamin P Horton, Gerhard Krinner, Dirk Notz, Sophie Nowicki, Matthew D Palmer, Aimée B A Slangen, and Cunde Xiao
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- 2022
- Full Text
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