72,107 results on '"Webber, A"'
Search Results
152. Jack Ives, 1931–2024
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Gifford H. Miller and Patrick J. Webber
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Environmental sciences ,GE1-350 ,Ecology ,QH540-549.5 - Published
- 2024
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153. The impact of PTSD on associations between sex hormones and cardiovascular disease symptoms
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Joann J. Chen, Jahnvi Jain, Julia B. Merker, Theresa K. Webber, Jeffery C. Huffman, and Antonia V. Seligowski
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Cardiovascular ,autonomic ,sex ,estrogen ,estradiol ,progesterone ,Psychiatry ,RC435-571 - Abstract
ABSTRACTBackground: Women have twice the lifetime prevalence of posttraumatic stress disorder (PTSD) relative to men, and PTSD is a known risk factor for cardiovascular disease (CVD). Two sex hormones – estradiol and progesterone – have been found to impact both PTSD and CVD symptomatology, but the way in which sex hormones influence cardiovascular physiology among individuals with PTSD is not well understood.Objective: This study sought to clarify the association between sex hormones, PTSD, and CVD among trauma-exposed women.Method: Sixty-six trauma-exposed women (M age = 31.45, SD = 8.92) completed a clinical interview for PTSD and self-reported CVD symptoms; estradiol and progesterone were assayed from blood samples. The association between each sex hormone and CVD symptoms was analyzed, controlling for age, systolic blood pressure (BP), and diastolic BP.Results: Neither estradiol nor the PTSD-by-estradiol interaction was significantly associated with CVD symptoms. Higher progesterone and, relatedly, progesterone-to-estradiol ratio (PE ratio) were each significantly associated with greater CVD symptom severity, but only for individuals with lower relative PTSD severity.Conclusions: The findings indicate that PTSD moderates the relationship between progesterone and CVD symptoms, and further research is warranted to reconcile findings in existing literature regarding the direction of and mechanisms behind this relationship.
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- 2024
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154. In-Hospital Outcomes and 30-Day Readmission Rate After Transcatheter and Surgical Aortic Valve Replacement in Liver Cirrhosis: A Contemporary Propensity-Matched Analysis
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Abhinav Aggarwal, MD, Sun-Joo Jang, MD, PhD, Swarnima Vardhan, MD, Fabricio Malaguez Webber, MD, Md Mashiul Alam, MD, Madhurima Vardhan, PhD, Gilead I. Lancaster, MD, Yousif Ahmad, MD, PhD, Amit N. Vora, MD, MPH, Stuart W. Zarich, MD, Ignacio Inglessis-Azuaje, MD, Sammy Elmariah, MD, MPH, John K. Forrest, MD, and Carlos D. Davila, MD
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Aortic stenosis ,Cirrhosis ,Liver disease ,Readmissions ,Structural heart interventions ,Valvular heart diseases ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: Liver cirrhosis is not included in surgical risk prediction models despite being a significant risk factor associated with high periprocedural morbidity and mortality in patients undergoing cardiac surgery. Limited contemporary data exists assessing the outcomes of transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) in patients with cirrhosis. Methods: Patients with cirrhosis who underwent TAVR or SAVR were identified from the Nationwide Readmissions Database. Propensity-score matched analysis was performed to compare the clinical characteristics, in-hospital, and 30-day outcomes between the two groups. Results: Between 2016 and 2019, 4047 patients with cirrhosis underwent TAVR (n = 3298) or SAVR (n = 749). TAVR adoption sharply rose, doubling the number of cases performed during the study period. Following propensity matching among 718 patients, the TAVR group consistently exhibited significantly lower rates of in-hospital mortality (2.2 vs. 7.5%; p = 0.002), bleeding (14.5 vs. 52.9%; p < 0.001), vascular complications (1.4 vs. 5%; p = 0.011), hepatorenal syndrome (3.3 vs. 8.9%; p = 0.003), cardiogenic shock (2.8 vs. 7%; p = 0.015), mechanical circulatory support utilization (0.6 vs. 4.7%; p = 0.001), 30-day all-cause readmission rates (10.3 vs. 18.1%; p = 0.005), and 30-day unplanned readmission rates (10 vs. 16.6%; p = 0.015) compared to the SAVR group. The TAVR group had significantly shorter median hospital stays, lower non-home disposition rates, and reduced hospital costs. Conclusions: TAVR is associated with significantly lower rates of in-hospital mortality, bleeding, vascular complications, hepatorenal syndrome, cardiogenic shock, mechanical circulatory support utilization, and 30-day readmission rates compared to SAVR and represents a safe therapeutic option for aortic valve replacement in patients with cirrhosis.
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- 2024
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155. Combination of Q-switched and micropulsed 1064-nm Nd:YAG laser for global facial improvement
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Célia Luiza Petersen Vitello Kalil, Valéria Campos, Analupe Webber, Laura de Mattos Milman, Mariana Silveira Ferreira Mylius, and André Cartell
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lasers ,skin aging ,rejuvenation ,Dermatology ,RL1-803 - Abstract
The 1064-nm Nd:YAG laser in Q-switched and micropulsed modes has been used in rejuvenation, pore reduction, skin texture improvement, and wrinkle reduction. The aim of this study is to evaluate the combination of 1064-nm Nd:YAG laser in micropulsed and Q-switched modes in the same session for global facial treatment. Thirty female patients underwent six treatment sessions every two weeks. Three blinded dermatologists evaluated the results through clinical photographs and Visia® or Focco® images obtained before and 30 days after the last treatment session. The parameters of interest were solar melanosis, telangiectasias, wrinkles, dilated pores, melasma and skin texture. Three patients had face biopsies before and 30 days after the end of treatment. Most patients showed improvement in all evaluated parameters, except for two patients who had worsening of melasma. An increase in collagen was observed in two of the three histological examinations performed after treatment. The combination of laser modes studied herein offers a safe treatment that can improve wrinkles, skin texture, and laxity with minimal downtime.
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- 2024
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156. Inside CKD: a microsimulation modelling study projects the clinical and economic burden of chronic kidney disease in Hungary
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Lilla Szabó, Luca Adél Halmai, Erzsébet Ladányi, Juan Jose Garcia Sanchez, Salvatore Barone, Claudia Cabrera, Lise Retat, Laura Webber, István Wittmann, and Boglárka Laczy
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chronic kidney disease ,disease burden ,economic burden ,Hungary ,Inside CKD ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
ObjectivesThe Inside CKD programme implemented a microsimulation modelling approach to project the clinical and economic burden of chronic kidney disease (CKD) between 2024 and 2027 in Hungary.MethodsUsing the peer-reviewed Inside CKD microsimulation, a virtual Hungarian population was generated that was derived from national records, local demographic data and published epidemiological data. These inputs defined the likelihood of a change in health state for each individual as they progressed through the model in annual increments. Individual CKD status, including disease progression, cardiorenal complications and associated costs, was tracked annually to generate the population-level projections of the clinical and economic burden of CKD.ResultsBy 2027, people with CKD were projected to constitute 13.3% of the Hungarian national population. The prevalence of heart failure, myocardial infarction and stroke in people with CKD were projected to remain consistently high, reaching 323 447, 69 188 and 120 118 by 2027, respectively. Kidney replacement therapy cases were predicted to remain high at 20 515 in 2024 and 22 325 in 2027, with associated costs increasing from 71.4 billion HUF in 2024 to 79.6 billion HUF in 2027. Total annual healthcare costs associated with treating CKD were projected to constitute 5.4% of the overall national healthcare budget in 2027.ConclusionsInside CKD demonstrates that the future burden of CKD in Hungary will be substantial unless current management strategies change. The high prevalence of undiagnosed CKD and associated cardiorenal complications highlight the urgent need for policy interventions focused on early diagnosis and timely intervention to mitigate the future burden of CKD.
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- 2024
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157. Diverse Responses of Upper Ocean Temperatures to Chlorophyll‐Induced Solar Absorption Across Different Coastal Upwelling Regions
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Siyu Meng, Benjamin G. M. Webber, David P. Stevens, Manoj Joshi, Julien Palmieri, and Andrew Yool
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solar absorption ,chlorophyll ,coastal upwelling ,Earth system model ,biophysical feedback ,Geophysics. Cosmic physics ,QC801-809 - Abstract
Abstract Chlorophyll in phytoplankton absorbs solar radiation (SR) and affects the thermal structure and dynamics within upwelling regions. However, research on this process across global‐scale coastal upwelling systems is still lacking. Here, we use a coupled ocean‐biogeochemical model to investigate differing responses to chlorophyll‐induced solar absorption between Pacific and Atlantic coastal upwelling regions. Chlorophyll‐induced solar absorption leads to colder Pacific coastal upwelling but warmer Atlantic coastal upwelling. In the Pacific, the shading effect of the surface chlorophyll maximum leads to colder subsurface water, which is then upwelled, contributing to cooling. The more stratified upper ocean leads to shallower mixed layer depth, intensifying offshore transport and upwelling. In the Atlantic, the absorption of SR by the subsurface chlorophyll maximum causes warmer and weaker upwelling. The processes described, in turn, trigger positive feedback to ocean biogeochemistry and potentially interact with climate dynamics, underscoring the necessity to incorporate them into Earth system models.
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- 2024
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158. Rapid Uplift, yet Slow Denudation of the Suckling‐Dayman Metamorphic Core Complex in Tropical Papua New Guinea
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J. E. Österle, K. P. Norton, C. E. Lukens, T. A. Little, M. Mizera, S. M. Webber, and K. Wilcken
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landscape evolution ,erosion ,weathering ,cosmogenic nuclides ,soil production ,metabasalt ,Geophysics. Cosmic physics ,QC801-809 - Abstract
Abstract A linear relationship between rates of physical erosion and chemical weathering is apparent in slowly eroding landscapes. Whether the relationship remains linear in rapidly eroding landscapes is less clear. Field‐based research into this relationship between erosion and weathering rates has largely been conducted in temperate climates with granitic bedrock. In tropical settings, the contribution of chemical mass loss to total denudation may approach, or even exceed, that of erosion. We report 10Be‐in‐quartz cosmogenic radionuclide and soil chemistry data from the Suckling‐Dayman Metamorphic Core Complex (SDMCC) in Papua New Guinea. Despite being exhumed at cm‐per‐year rates, its lower‐plate domed and striated morphology suggests minimal denudation, which is confirmed by our 10Be‐in‐quartz data (0.02–0.18 mm/yr). We suggest that rolling hinge‐style back‐rotation of the SDMCC's lower plate and the combination of a tropical climate and highly weatherable metabasalt bedrock have played a fundamental role in preserving the tectonic topography of this remarkable metamorphic core complex.
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- 2024
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159. From Tajikistan to Moscow and Iran: Mapping the Local and Transnational Threat of Islamic State Khorasan
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Jadoon, Amira, Sayed, Abdul, Webber, Lucas, and Valle, Riccardo
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United States. International Broadcasting Bureau. Voice of America ,Military and naval science - Abstract
The evolving nature of Islamic State Khorasan's (ISK) operational attacks, media campaigns, and connected actors, both locally in Afghanistan and transnationally, provide important insights into the group's adaptive and multifaceted approach to ensure its survival and grow its influence. By situating ISK-linked attacks in Moscow and Iran within the group's overarching operational strategy, the authors delve into ISK's exploitation of the local environment under the Taliban regime and its operational adaptations under the leadership of Sanaullah Ghafari. After reviewing attack trends, and losses due to the Taliban's counter-offensives, the article explores ISK's intentional pivot to appeal to a Central Asian audience through its recent media campaigns, which simultaneously encourage hijrah to Afghanistan and the pursuit of external operations. The authors contextualize the significant involvement of Tajik nationals in ISK's external operations, both in Central Asia and the West, as an embodiment of the group's broader strategy to diversify and internationalize its recruitment, and operational agenda. Through a shifting multifaceted approach, ISK seeks to rebuild and consolidate its base within its traditional strongholds in and around Afghanistan while simultaneously extending its transnational reach., Islamic State Khorasan (ISK) emerged in 2015 as an official affiliate of the Islamic State in the Afghanistan-Pakistan region, rapidly interweaving its jihad into the web of local conflicts and [...]
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- 2024
160. Robotic Vaginal Hernia Repair for Recurrent Vaginal Prolapse Status Post-Radical Cystectomy with an Indiana Pouch
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Carbone, Laurel, Webber, Victoria, Rothenberger, Rodger, Lenger, Stacy M., Gupta, Ankita, Messer, Jamie, and Francis, Sean
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- 2024
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161. Digital design considerations in urban nature.
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Piumi Perera, Sarah Webber, and Wally Smith
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- 2024
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162. Multi-Label Classification for Implicit Discourse Relation Recognition.
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Wanqiu Long, Siddharth Narayanaswamy, and Bonnie Webber
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- 2024
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163. Aion: Efficient Temporal Graph Data Management.
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Georgios Theodorakis, James Clarkson, and Jim Webber
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- 2024
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164. BIFROST: A Future Graph Database Runtime.
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James Clarkson, Georgios Theodorakis, and Jim Webber
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- 2024
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165. An Empirical Evaluation of Variable-length Record B+Trees on a Modern Graph Database System.
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Georgios Theodorakis, James Clarkson, and Jim Webber
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- 2024
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166. Syntactic Preposing and Discourse Relations.
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Yunfang Dong, Xixian Liao, and Bonnie Webber
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- 2024
167. Designing Artificial Serendipity.
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Xuanning Chen, Angela Lin, and Sheila Webber
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- 2024
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168. Strengthening Computational Thinking within Upper Elementary Classrooms: A Strategy for Broadening Participation in Computer Science.
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Ben Sayler, Ann Anderson, Hannah Caffee, Becky Carroll, Koreen Hammel, Ian Her Many Horses, Deann Kertzman, Pamela Lange, Rebecca Myers, Nicol Reiner, Nicole Uhre-Balk, and Kimberly Webber
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- 2024
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169. Lie, Repent, Repeat: Exploring Apologies after Repeated Robot Deception.
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Kantwon Rogers, Reiden John Allen Webber, Jinhee Chang, Geronimo Gorostiaga Zubizarreta, and Ayanna M. Howard
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- 2024
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170. What Should a Robot Do? Comparing Human and Large Language Model Recommendations for Robot Deception.
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Kantwon Rogers, Reiden John Allen Webber, Geronimo Gorostiaga Zubizarreta, Arthur Melo Cruz, Shengkang Chen, Ronald C. Arkin, Jason Borenstein, and Alan R. Wagner
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- 2024
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171. Augmented Reality at Zoo Exhibits: A Design Framework for Enhancing the Zoo Experience.
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Brandon Victor Syiem, Sarah Webber, Ryan M. Kelly 0001, Qiushi Zhou, Jorge Gonçalves 0001, and Eduardo Velloso
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- 2024
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172. Understanding the Mental Health Experiences of Unpaid Caregivers: The Role and Limitations of Caregiver Identity Theory
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Webber, Jodi, Zangeneh, Masood, Series Editor, Nyaga, Dionisio, editor, and Torres, Rose Ann, editor
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- 2024
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173. Designing Artificial Serendipity
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Chen, Xuanning, Lin, Angela, Webber, Sheila, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Deshpande, R.D., Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Kurosu, Masaaki, editor, and Hashizume, Ayako, editor
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- 2024
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174. The Use of the World Café Process to Foster Parent-School Engagement in Culturally Rooted Early Childhood Montessori Programs: A Participatory Process
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Brennhofer Pleski, Annamarie, Llapa, Fanny Jimbo, Pergament, Shannon, Vang, Say, Lee, Bao, Webber, Jordan, Webber, Octavia, Strom, Terri, Springer, Nora, and Hearst, Mary O.
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Parent engagement is one approach to decrease the opportunity gap for Black, American Indian, and all children of color. This report from the field describes the use of the World Café participatory approach to support parent engagement in five early childhood, culturally embedded Montessori programs. Serving the Whole Child (SWC) is a community-university partnership between St. Catherine University, Montessori Center of Minnesota, five early childhood Montessori schools, and school parent leaders. Using a participatory approach, parent leaders from each school co-designed the development, implementation, and analysis of the World Café. The World Café asked school parents what was working and what parents needed help with related to three topics: parent well-being, caring for a young child, and school-community connection. Each World Café was tailored to honor the school's unique community, cultural values, and family needs. Parent leaders synthesized and coordinated with schools to develop offerings to meet the priorities of the recommendations and key topics. World Café is a participatory process that may increase parent leadership and school engagement in ways that support caregiving and child success.
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- 2021
175. Archbishop Knox and the founding of Catholic Theological College
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McMullen, Gabrielle, Vodola, Max, and Webber, Ruth
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- 2024
176. Updated vital rate estimates for the endangered Hawaiian Common Gallinule (Gallinula galeata sandvicensis)/Estimaciones actualizadas de tasas vitales de la gallareta hawaiana (Gallinula galeata sandvicensis) en peligro
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Rees, Charles B. van, Webber, Bryn, Nietmann, Lindsey, Works, Aaron J., Dugger, Bruce, and Reed, J. Michael
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Citizen scientists -- Analysis -- Protection and preservation ,Endangered species -- Protection and preservation -- Analysis ,Natural resources -- Analysis -- Protection and preservation ,Biological sciences - Abstract
Accurate estimates of vital rates like survival and reproduction are the foundation for endangered species management and recovery planning. Where new data are collected, analyses and conservation actions can be updated according to the best available knowledge. In this short communication, we update vital rate estimates for the Hawaiian Common Gallinule (Gallinula galeata sandvicensis), an endangered subspecies endemic to the Hawaiian Islands of Kaua'i and O'ahu, using newly available field data. These new data more than double the sample size used for initial vital rate estimates from a 2018 publication, and include the first ever published estimates of brood survival for this subspecies. The latter is considered a major knowledge gap for population modeling and conservation planning for this taxon. We estimated the mean probability of brood survival for the first month post-hatch at 0.90 for both islands combined, 0.82 on Kaua'i and 0.98 on O'ahu. For both populations combined, we observed a smaller mean clutch size (4.76 vs. 5.10), similar mean nest success (0.64 vs. 0.66), similar brood size (2.55 vs. 2.51), lower brood size per successful nest (3.77 vs. 3.86), and similar hatch rate (0.53 vs. 0.52) to the original study published in 2018. Received 13 May 2023. Accepted 28 December 2023. Key words: brood survival, chick survival, citizen science, nest success, Rallidae, wildlife management. Las estimaciones precisas de tasas vitales como supervivencia y reproducion son la base para la gestion de especies amenazadas y la planificacion de su recuperation. Cuando se recopilan nuevos datos, los analisis y acciones de conservation se deben actualizar de acuerdo con el mejor conocimiento disponible. En este articulo, actualizamos las estimaciones de las tasas vitales para Gallinula galeata sandvicensis, una subespecie en peligro y endemica de las islas hawaianas de Kaua'i y O'ahu, utilizando datos de campo recientemente disponi-bles. Estos nuevos datos aumentan la cantidad de datos de muestra utilizado para las estimaciones iniciales de las tasas vitales en el manuscrito original publicado en 2018. Ademas, describe las pri-meras estimaciones publicadas de la supervivencia de los polluelos durante el primer mes posterior a la eclosion para esta subespecie. El promedio de los datos de supervivencia fue 0.90 para ambas islas combinadas, 0.82 en Kaua'i y 0.98 en O'ahu. Para ambas poblaciones combinadas, se observe>> un promedio de nidada mas pequeno (4.76 contra 5.10), una tasa de exito de anidacion media similar (0.64 contra 0.66), tamano de cria similar (2.55 contra 2.51), menor tamano de cria por nido exitoso (3.77 contra 3.86), y una tasa de eclosion similar (0.53 contra 0.52) que el estudio original publicado en 2018, con un tamano de muestra 2 veces mayor del estudio original. Palabras clave: ciencia ciudadana. exito de anidacion, manejo de fauna silvestre. Rallidae, sobrevivencia de polluelos, sobrevivencia de puesta., Effective management planning for endangered species depends in part on accurate vital rate estimates (Beissinger and Westphal 1998, Reed et al. 2002). Vital rates include metrics of reproduction and survival [...]
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- 2024
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177. Association between passively collected walking and bicycling data and purposefully collected active commuting survey data-United States, 2019.
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Soto, Graycie, Webber, Bryant, Fletcher, Kelly, Chen, Tiffany, Garber, Michael, Smith, Akimi, Wilt, Grete, Conn, Michel, and Whitfield, Geoffrey
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Bicycling ,Geographic information systems ,Mobility data ,Population surveillance ,Transportation ,Walking ,Humans ,United States ,Bicycling ,Walking ,Transportation ,Surveys and Questionnaires ,Geographic Information Systems - Abstract
Commercially-available location-based services (LBS) data derived primarily from mobile devices may provide an alternative to surveys for monitoring physically-active transportation. Using Spearman correlation, we compared county-level metrics of walking and bicycling from StreetLight with metrics of physically-active commuting among U.S. workers from the American Community Survey. Our strongest pair of metrics ranked counties (n = 298) similarly for walking (rho = 0.53 [95% CI: 0.44-0.61]) and bicycling (rho = 0.61 [0.53-0.67]). Correlations were higher for denser and more urban counties. LBS data may offer public health and transportation professionals timely information on walking and bicycling behavior at finer geographic scales than some existing surveys.
- Published
- 2023
178. Simple physics and integrators accurately reproduce Mercury instability statistics
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Abbot, Dorian S., Hernandez, David M., Hadden, Sam, Webber, Robert J., Afentakis, Georgios P., and Weare, Jonathan
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Astrophysics - Earth and Planetary Astrophysics ,Physics - Geophysics - Abstract
The long-term stability of the Solar System is an issue of significant scientific and philosophical interest. The mechanism leading to instability is Mercury's eccentricity being pumped up so high that Mercury either collides with Venus or is scattered into the Sun. Previously, only three five-billion-year $N$-body ensembles of the Solar System with thousands of simulations have been run to assess long-term stability. We generate two additional ensembles, each with 2750 members, and make them publicly available at \texttt{https://archive.org/details/@dorianabbot}. We find that accurate Mercury instability statistics can be obtained by (1) including only the Sun and the 8 planets, (2) using a simple Wisdom-Holman scheme without correctors, (3) using a basic representation of general relativity, and (4) using a time step of 3.16 days. By combining our Solar System ensembles with previous ensembles we form a 9,601-member ensemble of ensembles. In this ensemble of ensembles, the logarithm of the frequency of a Mercury instability event increases linearly with time between 1.3 and 5 Gyr, suggesting that a single mechanism is responsible for Mercury instabilities in this time range and that this mechanism becomes more active as time progresses. Our work provides a robust estimate of Mercury instability statistics over the next five billion years, outlines methodologies that may be useful for exoplanet system investigations, and provides two large ensembles of publicly available Solar System integrations that can serve as testbeds for theoretical ideas as well as training sets for artificial intelligence schemes., Comment: accepted at ApJ
- Published
- 2022
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179. Multi-coil MRI by analytic continuation
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Webber, James W.
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Mathematics - Numerical Analysis - Abstract
We present novel reconstruction and stability analysis methodologies for two-dimensional, multi-coil MRI, based on analytic continuation ideas. We show that the 2-D, limited-data MRI inverse problem, whereby the missing parts of $\textbf{k}$-space (Fourier space) are lines parallel to either $k_1$ or $k_2$ (i.e., the $\textbf{k}$-space axis), can be reduced to a set of 1-D Fredholm type inverse problems. The Fredholm equations are then solved to recover the 2-D image on 1-D line profiles (``slice-by-slice" imaging). The technique is tested on a range of medical in vivo images (e.g., brain, spine, cardiac), and phantom data. Our method is shown to offer optimal performance, in terms of structural similarity, when compared against similar methods from the literature, and when the $\textbf{k}$-space data is sub-sampled at random so as to simulate motion corruption. In addition, we present a Singular Value Decomposition (SVD) and stability analysis of the Fredholm operators, and compare the stability properties of different $\textbf{k}$-space sub-sampling schemes (e.g., random vs uniform accelerated sampling)., Comment: 20 pages, 9 figures
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- 2022
180. Ellipsoidal and hyperbolic Radon transforms; microlocal properties and injectivity
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Webber, James W., Holman, Sean, and Quinto, Eric Todd
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Mathematics - Functional Analysis - Abstract
We present novel microlocal and injectivity analyses of ellipsoid and hyperboloid Radon transforms. We introduce a new Radon transform, $R$, which defines the integrals of a compactly supported $L^2$ function, $f$, over ellipsoids and hyperboloids with centers on a smooth connected surface, $S$. $R$ is shown to be a Fourier Integral Operator (FIO) and in our main theorem we prove that $R$ satisfies the Bolker condition if the support of $f$ is connected and not intersected by any plane tangent to $S$. Under certain conditions, this is an equivalence. We give examples where our theory can be applied. Focusing specifically on a cylindrical geometry of interest in Ultrasound Reflection Tomography (URT), we prove injectivity results and investigate the visible singularities. In addition, we present example reconstructions of image phantoms in two-dimensions, and validate our microlocal theory., Comment: 26 pages, 11 figures
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- 2022
181. Harnessing electronic health records for real-world evidence
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Hou, Jue, Zhao, Rachel, Gronsbell, Jessica, Beaulieu-Jones, Brett K., Webber, Griffin, Jemielita, Thomas, Wan, Shuyan, Hong, Chuan, Lin, Yucong, Cai, Tianrun, Wen, Jun, Panickan, Vidul A., Bonzel, Clara-Lea, Liaw, Kai-Li, Liao, Katherine P., and Cai, Tianxi
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Statistics - Applications - Abstract
While randomized controlled trials (RCTs) are the gold-standard for establishing the efficacy and safety of a medical treatment, real-world evidence (RWE) generated from real-world data (RWD) has been vital in post-approval monitoring and is being promoted for the regulatory process of experimental therapies. An emerging source of RWD is electronic health records (EHRs), which contain detailed information on patient care in both structured (e. g., diagnosis codes) and unstructured (e. g., clinical notes, images) form. Despite the granularity of the data available in EHRs, critical variables required to reliably assess the relationship between a treatment and clinical outcome can be challenging to extract. We provide an integrated data curation and modeling pipeline leveraging recent advances in natural language processing, computational phenotyping, modeling techniques with noisy data to address this fundamental challenge and accelerate the reliable use of EHRs for RWE, as well as the creation of digital twins. The proposed pipeline is highly automated for the task and includes guidance for deployment. Examples are also drawn from existing literature on EHR emulation of RCT and accompanied by our own studies with Mass General Brigham (MGB) EHR., Comment: 39 pages, 1 figure, 1 table
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- 2022
182. Inferring Maps of the Sun's Far-side Unsigned Magnetic Flux from Far-side Helioseismic Images using Machine Learning Techniques
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Chen, Ruizhu, Zhao, Junwei, Webber, Shea Hess, Liu, Yang, Hoeksema, J. Todd, and Derosa, Marc L.
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Astrophysics - Solar and Stellar Astrophysics - Abstract
Accurate modeling of the Sun's coronal magnetic field and solar wind structures require inputs of the solar global magnetic field, including both the near and far sides, but the Sun's far-side magnetic field cannot be directly observed. However, the Sun's far-side active regions are routinely monitored by helioseismic imaging methods, which only require continuous near-side observations. It is therefore both feasible and useful to estimate the far-side magnetic-flux maps using the far-side helioseismic images despite their relatively low spatial resolution and large uncertainties. In this work, we train two machine-learning models to achieve this goal. The first machine-learning training pairs simultaneous SDO/HMI-observed magnetic-flux maps and SDO/AIA-observed EUV 304$\r{A}$ images, and the resulting model can convert 304$\r{A}$ images into magnetic-flux maps. This model is then applied on the STEREO/EUVI-observed far-side 304$\r{A}$ images, available for about 4.3 years, for the far-side magnetic-flux maps. These EUV-converted magnetic-flux maps are then paired with simultaneous far-side helioseismic images for a second machine-learning training, and the resulting model can convert far-side helioseismic images into magnetic-flux maps. These helioseismically derived far-side magnetic-flux maps, despite their limitations in spatial resolution and accuracy, can be routinely available on a daily basis, providing useful magnetic information on the Sun's far side using only the near-side observations., Comment: Accepted by ApJ
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- 2022
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183. Autovocoder: Fast Waveform Generation from a Learned Speech Representation using Differentiable Digital Signal Processing
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Webber, Jacob J, Valentini-Botinhao, Cassia, Williams, Evelyn, Henter, Gustav Eje, and King, Simon
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Computer Science - Sound ,Electrical Engineering and Systems Science - Audio and Speech Processing - Abstract
Most state-of-the-art Text-to-Speech systems use the mel-spectrogram as an intermediate representation, to decompose the task into acoustic modelling and waveform generation. A mel-spectrogram is extracted from the waveform by a simple, fast DSP operation, but generating a high-quality waveform from a mel-spectrogram requires computationally expensive machine learning: a neural vocoder. Our proposed ``autovocoder'' reverses this arrangement. We use machine learning to obtain a representation that replaces the mel-spectrogram, and that can be inverted back to a waveform using simple, fast operations including a differentiable implementation of the inverse STFT. The autovocoder generates a waveform 5 times faster than the DSP-based Griffin-Lim algorithm, and 14 times faster than the neural vocoder HiFi-GAN. We provide perceptual listening test results to confirm that the speech is of comparable quality to HiFi-GAN in the copy synthesis task., Comment: Accepted to the 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2023)
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- 2022
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184. Understanding and eliminating spurious modes in variational Monte Carlo using collective variables
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Zhang, Huan, Webber, Robert J., Lindsey, Michael, Berkelbach, Timothy C., and Weare, Jonathan
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Physics - Chemical Physics ,Computer Science - Machine Learning ,Physics - Computational Physics ,Quantum Physics - Abstract
The use of neural network parametrizations to represent the ground state in variational Monte Carlo (VMC) calculations has generated intense interest in recent years. However, as we demonstrate in the context of the periodic Heisenberg spin chain, this approach can produce unreliable wave function approximations. One of the most obvious signs of failure is the occurrence of random, persistent spikes in the energy estimate during training. These energy spikes are caused by regions of configuration space that are over-represented by the wave function density, which are called ``spurious modes'' in the machine learning literature. After exploring these spurious modes in detail, we demonstrate that a collective-variable-based penalization yields a substantially more robust training procedure, preventing the formation of spurious modes and improving the accuracy of energy estimates. Because the penalization scheme is cheap to implement and is not specific to the particular model studied here, it can be extended to other applications of VMC where a reasonable choice of collective variable is available., Comment: 12 pages, 13 figures
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- 2022
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185. Versatile volumetric additive manufacturing with 3D ray tracing
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Webber, Daniel, Zhang, Yujie, Picard, Michel, Boisvert, Jonathan, Paquet, Chantal, and Orth, Antony
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Physics - Optics - Abstract
Tomographic volumetric additive manufacturing (VAM) is an optical 3D printing technique where an object is formed by photopolymerizing resin via tomographic projections. Currently, these projections are calculated using the Radon transform from computed tomography but it ignores two fundamental properties of real optical projection systems: finite etendue and non-telecentricity. In this work, we introduce 3D ray tracing as a new method of computing projections in tomographic VAM and demonstrate high fidelity printing in non-telecentric and higher etendue systems, leading to a 3X increase in vertical build volume than the standard Radon method. The method introduced here expands the possible tomographic VAM printing configurations, enabling faster, cheaper, and higher fidelity printing., Comment: 16 pages, 8 figures
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- 2022
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186. A Review of Multilingualism in and for Ontologies
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Gillis-Webber, Frances and Keet, C. Maria
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Computer Science - Artificial Intelligence ,I.2.4 ,I.2.7 - Abstract
The Multilingual Semantic Web has been in focus for over a decade. Multilingualism in Linked Data and RDF has shown substantial adoption, but this is unclear for ontologies since the last review 15 years ago. One of the design goals for OWL was internationalisation, with the aim that an ontology is usable across languages and cultures. Much research to improve on multilingual ontologies has taken place in the meantime, and presumably multilingual linked data could use multilingual ontologies. Therefore, this review seeks to (i) elucidate and compare the modelling options for multilingual ontologies, (ii) examine extant ontologies for their multilingualism, and (iii) evaluate ontology editors for their ability to manage a multilingual ontology. Nine different principal approaches for modelling multilinguality in ontologies were identified, which fall into either of the following approaches: using multilingual labels, linguistic models, or a mapping-based approach. They are compared on design by means of an ad hoc visualisation mode of modelling multilingual information for ontologies, shortcomings, and what issues they aim to solve. For the ontologies, we extracted production-level and accessible ontologies from BioPortal and the LOV repositories, which had, at best, 6.77% and 15.74% multilingual ontologies, respectively, where most of them have only partial translations and they all use a labels-based approach only. Based on a set of nine tool requirements for managing multilingual ontologies, the assessment of seven relevant ontology editors showed that there are significant gaps in tooling support, with VocBench 3 nearest of meeting them all. This stock-taking may function as a new baseline and motivate new research directions for multilingual ontologies., Comment: 22 pages, 10 figures, 8 tables; soon to be submitted to an international journal
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- 2022
187. Analysis of stakeholder-associated factors and their interactions in energy conservation behaviour of occupants: evidence from network analysis
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Yang, Yin-Run, Zuo, Jian, Pan, Min, Chang, Rui-Dong, Zou, Zhuo-Jing, Webber, Ronald J., and Dong, Na
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- 2024
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188. People with Intellectual Disabilities, Dysphagia and Post-Covid Syndrome
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Watkins, Lance, Kulkarni, Amit, Webber, Emma, Bassett, Paul, Lamb, Kirsten, Sawhney, Indermeet, Laugharne, Richard, Heslop, Pauline, Jones, Angela, Napier, Geraldine, Crocker, Angela, Sivan, Manoj, and Shankar, Rohit
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- 2024
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189. Modulation of hypoxia-inducible factor-1 signaling pathways in cancer angiogenesis, invasion, and metastasis by natural compounds: a comprehensive and critical review
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Fakhri, Sajad, Moradi, Seyed Zachariah, Faraji, Farahnaz, Kooshki, Leila, Webber, Kassidy, and Bishayee, Anupam
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- 2024
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190. Bioactive glycans in a microbiome-directed food for children with malnutrition
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Hibberd, Matthew C., Webber, Daniel M., Rodionov, Dmitry A., Henrissat, Suzanne, Chen, Robert Y., Zhou, Cyrus, Lynn, Hannah M., Wang, Yi, Chang, Hao-Wei, Lee, Evan M., Lelwala-Guruge, Janaki, Kazanov, Marat D., Arzamasov, Aleksandr A., Leyn, Semen A., Lombard, Vincent, Terrapon, Nicolas, Henrissat, Bernard, Castillo, Juan J., Couture, Garret, Bacalzo, Jr, Nikita P., Chen, Ye, Lebrilla, Carlito B., Mostafa, Ishita, Das, Subhasish, Mahfuz, Mustafa, Barratt, Michael J., Osterman, Andrei L., Ahmed, Tahmeed, and Gordon, Jeffrey I.
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- 2024
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191. Can the competition dynamics of non-native invaders be reconstructed to reveal historical impact? The case of Cecropia peltata and Musanga cecropioides (Urticaceae) in Cameroon
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Baudoux, Claire, Biwolé, Achille, Hardy, Olivier J., Webber, Bruce L., and Heuret, Patrick
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- 2024
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192. Projected Health and Economic Burden of Comorbid Gout and Chronic Kidney Disease in a Virtual US Population: A Microsimulation Study
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Joshua Card-Gowers, Lise Retat, Ada Kumar, Brad A. Marder, Lissa Padnick-Silver, Brian LaMoreaux, and Laura Webber
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Chronic kidney insufficiency ,Gout ,Cost of illness ,Computer simulation ,Urate oxidase ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Abstract Introduction Gout, a common comorbidity of chronic kidney disease (CKD), is associated with high morbidity and healthcare utilization. However, a large proportion of gout remains undermanaged or untreated which may lead to worse patient outcomes and greater healthcare costs. This study estimates the present and future health and economic burden of controlled and uncontrolled gout in a virtual United States (US) CKD population. Methods A validated microsimulation model was used to project the burden of gout in patients with CKD in the USA through 2035. Databases were utilized to build a virtual CKD population of “individuals” with controlled or uncontrolled gout. Modelling assumptions were made on the basis of the literature, which was sparse in some cases. Health and economic outcomes with the current care (baseline) scenario were evaluated, along with potential benefits of urate-lowering intervention scenarios. Results The prevalence of comorbid gout and CKD in the USA was projected to increase by 29%, from 7.9 million in 2023 to 9.6 million in 2035 in the baseline scenario. Gout flares, tophi, and comorbidity development were also projected to increase markedly through 2035, with the economic burden of gout in the CKD population subsequently increasing from $38.9 billion in 2023 to $47.3 billion in 2035. An increased use of oral urate-lowering therapies in undermanaged patients, and pegloticase use in patients refractory to oral urate-lowering therapies were also project to result in 744,000 and 353,000 fewer uncontrolled gout cases, respectively, by 2035. Marked reductions in complications and costs ensued. Conclusions This study projected a substantial increase in comorbid gout and CKD. However, improved use of urate-lowering interventions could mitigate this growth and reduce the health and economic burdens of gout.
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- 2024
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193. The adaptive value of density-dependent habitat specialization and social network centrality
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Quinn M. R. Webber, Michel P. Laforge, Maegwin Bonar, and Eric Vander Wal
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Science - Abstract
Abstract Density dependence is a fundamental ecological process. In particular, animal habitat selection and social behavior often affect fitness in a density-dependent manner. The Ideal Free Distribution (IFD) and niche variation hypothesis (NVH) present distinct predictions associated with Optimal Foraging Theory about how the effect of habitat selection on fitness varies with population density. Using caribou (Rangifer tarandus) in Canada as a model system, we test competing hypotheses about how habitat specialization, social behavior, and annual reproductive success (co)vary across a population density gradient. Within a behavioral reaction norm framework, we estimate repeatability, behavioral plasticity, and covariance among social behavior and habitat selection to investigate the adaptive value of sociality and habitat selection. In support of NVH, but not the IFD, we find that at high density habitat specialists had higher annual reproductive success than generalists, but were also less social than generalists, suggesting the possibility that specialists were less social to avoid competition. Our study supports niche variation as a mechanism for density-dependent habitat specialization.
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- 2024
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194. Overflow metabolism provides a selective advantage to Escherichia coli in mixed cultures
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Muhammad Yasir, Nicholas M. Thomson, A. Keith Turner, Mark A. Webber, and Ian G. Charles
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TraDIS-Xpress ,Mixed acid fermentation ,Competition ,Overflow metabolism ,Warburg effect ,Microbiology ,QR1-502 - Abstract
Abstract Purpose It has previously been shown that organic acids produced by Escherichia coli suppress the growth of Pseudomonas aeruginosa in co-cultures under conditions of glucose excess, due to overflow metabolism. Inactivation of genes involved in central carbon metabolism favours fermentation of glucose over respiration and therefore increases production of organic acid by-products such as acetate and lactate. We sought to extend and refine the list of genes known to contribute to the metabolic balance between respiration and fermentation, to better understand the role of overflow metabolism in competitive survival of E. coli. Methods We confirmed the previous finding that E. coli excludes P. aeruginosa from co-cultures by producing organic acids in the presence of glucose. Using a genome-wide transposon screen we identified E. coli genes that are important for survival in co-cultures with P. aeruginosa, both with and without glucose supplementation. Results Central carbon metabolism was the dominant gene function under selection in our experimental conditions, indicating that the observed inhibition is a side-effect of overflow metabolism adopted by E. coli as a response to high glucose concentrations. The presence of a competing species increased the selective pressure for central carbon metabolism genes, with 31 important for growth in the presence of P. aeruginosa and glucose, while only 9 were significant for pure E. coli cultures grown with glucose. In our experiments, each transposon mutant was competed against all others in the pool, suggesting that overflow metabolism provides benefits to individual E. coli cells in addition to competitive inhibition derived from acidification of the growth medium. Conclusion Co-culture assays using transposon mutant libraries can provide insight into the selective pressures present in mixed species competition. This work demonstrates central carbon metabolism is the dominant gene function under selection in E. coli for aerobic growth in glucose and a side-effect of this is overflow metabolism which can inhibit growth of bystander species.
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- 2024
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195. Global Nitrogen Needs to Improve Wheat Yield Under Climate Change
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Pierre Martre, Sibylle Dueri, Jose Rafael Guarin, Frank Ewert, Heidi Webber, Daniele Calderini, Gemma Molero, Matthew Reynolds, Daniel Miralles, Guillermo Garcia, Hamish Brown, Mike George, Rob Craigie, Jean-Pierre Cohan, Jean-Charles Deswarte, Gustavo Slafer, Francesco Giunta, Davide Cammarano, Roberto Ferrise, Thomas Gaiser, Yujing Gao, Zvi Hochman, Gerrit Hoogenboom, Leslie A. Hunt, Kurt C. Kersebaum, Claas Nendel, Gloria Padovan, Alex C. Ruane, Amit Kumar Srivastava, Tommaso Stella, Iwan Supit, Peter Thorburn, Enli Wang, Joost Wolf, Chuang Zhao, Zhigan Zhao, and Senthold Asseng
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Meteorology and Climatology - Abstract
Increasing global food demand will require more food production without further exceeding the planetary boundaries, while at the same time adapting to climate change. We used an ensemble of wheat simulation models, with improved yield traits from the highest-yielding wheat genotypes to quantify potential yield gains and associated N requirements. This was explored for current and climate change scenarios across representative sites of major world wheat producing regions. The improved yield traits increased yield by 16% with current N fertilizer applications under both current climate and mid-century climate change scenarios. To achieve the full yield potential, a 52% increase in global average yield under a mid-century high warming climate scenario (RCP8.5), fertilizer use would need to increase fourfold over current use, which would unavoidably lead to higher environmental impacts from wheat production. Our results show the need to improve soil N availability and N use efficiency, along with yield potential.
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- 2024
196. Randomly pivoted Cholesky: Practical approximation of a kernel matrix with few entry evaluations
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Chen, Yifan, Epperly, Ethan N., Tropp, Joel A., and Webber, Robert J.
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Mathematics - Numerical Analysis ,Statistics - Machine Learning ,65F55, 65C99, 68T05 - Abstract
The randomly pivoted partial Cholesky algorithm (RPCholesky) computes a factorized rank-k approximation of an N x N positive-semidefinite (psd) matrix. RPCholesky requires only (k + 1) N entry evaluations and O(k^2 N) additional arithmetic operations, and it can be implemented with just a few lines of code. The method is particularly useful for approximating a kernel matrix. This paper offers a thorough new investigation of the empirical and theoretical behavior of this fundamental algorithm. For matrix approximation problems that arise in scientific machine learning, experiments show that RPCholesky matches or beats the performance of alternative algorithms. Moreover, RPCholesky provably returns low-rank approximations that are nearly optimal. The simplicity, effectiveness, and robustness of RPCholesky strongly support its use in scientific computing and machine learning applications., Comment: 40 pages, 4 figures
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- 2022
197. Mana whenua, mana moana, mana tinana, mana momona
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Gillon, Ashlea, Le Grice, Jade, Webber, Melinda, and McIntosh, Tracey
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- 2022
198. Biomarkers predictive of response to pembrolizumab in head and neck cancer.
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Pfister, David, Haddad, Robert, Worden, Francis, Weiss, Jared, Mehra, Ranee, Chow, Laura, Liu, Stephen, Kang, Hyunseok, Saba, Nabil, Wirth, Lori, Sukari, Ammar, Massarelli, Erminia, Ayers, Mark, Albright, Andrew, Webber, Andrea, Mogg, Robin, Lunceford, Jared, Huang, Lingkang, Cristescu, Razvan, Cheng, Jonathan, Seiwert, Tanguy, and Bauml, Joshua
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biomarker ,head and neck squamous cell carcinoma ,immunotherapy ,pembrolizumab ,tumor microenvironment ,tumor mutational burden ,Humans ,B7-H1 Antigen ,Squamous Cell Carcinoma of Head and Neck ,Papillomavirus Infections ,Antineoplastic Agents ,Immunological ,Head and Neck Neoplasms ,Biomarkers ,Tumor - Abstract
BACKGROUND: We performed an integrated biomarker evaluation in pembrolizumab-treated patients with R/M HNSCC enrolled in KEYNOTE-012 or KEYNOTE-055. The relationship between biomarkers and HPV status was explored. METHODS: We evaluated PD-L1 (combined positive score [CPS]), TMB, T-cell-inflamed gene expression profile (Tcellinf GEP), and HPV status. Associations between biomarkers were evaluated by logistic regression (ORR) and Cox regression (PFS, OS). RESULTS: Two hundred and fifty-seven patients (KEYNOTE-012, n = 106; KEYNOTE-055, n = 151) had TMB data available; of these, 254 had PD-L1 and 236 had Tcellinf GEP. TMB, PD-L1, and Tcellinf GEP were each significantly associated with ORR (p
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- 2023
199. Transcriptomic recurrence score improves recurrence prediction for surgically treated patients with intermediate-risk clear cell kidney cancer.
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Patel, Neal, Hakansson, Alexander, Ohtake, Shinji, Muraki, Peter, Proudfout, James, Liu, Yang, Webber, Lisa, Ibarra, Arkaitz, Liu, Vinnie, Davicioni, Elai, Chamie, Karim, Pantuck, Allan, and Shuch, Brian
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adjuvant therapy ,kidney cancer ,transcriptomics ,Humans ,Carcinoma ,Renal Cell ,Transcriptome ,Neoplasm Staging ,Kidney Neoplasms ,Risk Factors ,Nephrectomy ,Neoplasm Recurrence ,Local ,Prognosis - Abstract
BACKGROUND: Risk stratification of kidney cancer patients after nephrectomy may tailor surveillance intensity and selection for adjuvant therapy. Transcriptomic approaches are effective in predicting recurrence, but whether they add value to clinicopathologic models remains unclear. METHODS: Data from patients with clear cell renal cell carcinoma (ccRCC) was downloaded from The Cancer Genome Atlas. Clinicopathologic variables were used to calculate SSIGN (stage, size, grade, and necrosis) scores. The 16 gene recurrence score (RS) signature was generated using RNA-seq data. Transcriptomic risk groups were calculated using the original thresholds. SSIGN groups were divided into low, intermediate, and high risk. Disease-free status was the primary endpoint assessed. RESULTS: SSIGN and RS were calculated for 428 patients with non-metastatic ccRCC. SSIGN low-, intermediate-, and high-risk groups demonstrated 2.7%, 15.2%, and 27.5%, 3-year recurrence risk, respectively. On multivariable analysis, the RS was associated with disease-free status (sub-distribution hazard ratio (sHR) 1.43 per 25 RS [95% CI (1.00-1.43)], p = 0.05). By risk groups, RS further risk stratified the SSIGN intermediate-risk group (sHR 2.22 [95% CI 1.10-4.50], p = 0.03). SSIGN intermediate-risk patients with low and high RS had a 3-year recurrence rate of 8.0% and 25.2%, respectively. Within this risk group, the area under the curve (AUC) at 3 years was 0.69 for SSIGN, 0.74 for RS, and 0.78 for their combination. CONCLUSIONS: Transcriptomic recurrence scores improve risk prediction even when controlling for clinicopathologic factors. Utility may be best suited for intermediate-risk patients who have heterogeneous outcomes and further refinement for clinical utility is warranted.
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- 2023
200. Comparative invasion ecology of Carpobrotus from four continents: responses to nutrients and competition
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Portela, Rubén, Barreiro, Rodolfo, Alpert, Peter, Xu, Cheng-Yuan, Webber, Bruce L, and Roiloa, Sergio R
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Ecology ,Plant Biology - Abstract
Abstract Two key hypotheses in invasion biology are that certain traits underlie invasiveness in introduced species, and that these traits are selected for during or after introduction. We tested these hypotheses by focusing on two traits likely to confer invasiveness, high increase in growth in response to increase in nutrients and low decrease in growth in response to competition. We compared four species of Carpobrotus that differ in invasiveness, using species from four continents: Africa, Australia, Europe and North America. To test for selection for these traits in Carpobrotus edulis, a highly invasive species, we compared plants from its native range in South Africa to plants from the other three regions, where C. edulis has been introduced. Plants were propagated in a common garden. Offspring were then grown alone with or without added nutrients, and together with another species of Carpobrotus or with the grass Ammophila arenaria (a co-occurring native species in Europe) without added nutrients. Response to nutrients did not differ between species of Carpobrotus, nor was competitive response less negative in more invasive species. However, increase in growth in response to added nutrients was greater in introduced than in native C. edulis. Moreover, fresh mass per ramet at the start of treatments was higher in the two invasive species than in the two non-invasive ones. We provide new evidence that introduction can select for response to nutrient enrichment in invasive species and add to the evidence for an association between size and invasiveness in introduced plants.
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- 2023
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