2,796 results on '"R., Carlson"'
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102. The 1405 Richard Scrope Execution Verses (Long Version)
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David R. Carlson
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General Arts and Humanities ,Library and Information Sciences - Abstract
The article presents a previously unpublished long version of an Anglo-Latin poem on Henry IV’s executions of Archbishop Richard Scrope and others at York in 1405. It is argued that the poem was not part of the well-known hagiography of Scrope that grew quickly up for funding rebuilding programmes at York Minster, also exemplified in the paper; rather, it is a poetic contribution to the contemporary secular historiography of the York Rebellion against the Lancastrian regime, implicating the archbishop in active leadership of it.
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- 2021
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103. Elevated intracranial pressure with craniosynostosis: a multivariate model of age, syndromic status, and number of involved cranial sutures
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Scott P. Bartlett, Alexander M. Tucker, Zachary D. Zapatero, Shih-Shan Lang, Anna R Carlson, Jordan W. Swanson, Jesse A. Taylor, Christopher L. Kalmar, Gregory G. Heuer, and Mychajlo S. Kosyk
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medicine.medical_specialty ,business.industry ,Context (language use) ,General Medicine ,medicine.disease ,Sagittal plane ,Craniosynostosis ,Surgery ,medicine.anatomical_structure ,Suture (anatomy) ,Coronal plane ,Cranial sutures ,Medicine ,Craniofacial ,business ,Intracranial pressure - Abstract
OBJECTIVE Children with multiple prematurely fused cranial sutures and those undergoing surgical correction later in life appear to experience worse neurocognitive outcomes, but it is unclear whether higher intracranial pressure (ICP) is implicated in this process. The purpose of this study was to elucidate the effect of age at intervention and number of involved cranial sutures on ICP, as well as to assess which cranial suture closure may be more associated with elevated ICP. METHODS The prospective craniofacial database at the authors’ institution was queried for patients undergoing initial corrective surgery for craniosynostosis in whom intraoperative measurement of ICP was obtained prior to craniectomy. Age, involved sutures, and syndromic status were analyzed in the context of measured ICP by using multiple linear regression. RESULTS Fifty patients met the inclusion criteria. Age at procedure (p = 0.028, β = +0.060 mm Hg/month) and multiple-suture involvement (p = 0.010, β = +4.175 mm Hg if multisuture) were both significantly implicated in elevated ICP. The actual number of major sutures involved was significantly correlated to ICP (p = 0.001; β = +1.687 mm Hg/suture). Among patients with single-suture involvement, there was an overall significant difference of median ICP across the suture types (p = 0.008), with metopic having the lowest (12.5 mm Hg) and sagittal having the highest (16.0 mm Hg). Patients with multiple-suture involvement had significantly higher ICP (p = 0.003; 18.5 mm Hg). Patients with craniofacial syndromes were 79.3 times more likely to have multiple-suture involvement (p < 0.001). Corrective surgery for craniosynostosis demonstrated significant intraoperative reduction of elevated ICP (all p < 0.050). CONCLUSIONS Syndromic status, older age at intervention for craniosynostosis, and multiple premature fusion of cranial sutures were associated with significantly higher ICP.
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- 2021
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104. Cerebral oximetry monitoring using near-infrared spectroscopy during adult procedural sedation: a preliminary study
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Brian E. Driver, Krista R Carlson, Rajesh Satpathy, and James R. Miner
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Adult ,Male ,Sedation ,Critical Care and Intensive Care Medicine ,medicine ,Humans ,Oximetry ,Prospective Studies ,Respiratory system ,Hypoxia ,Adverse effect ,Depression (differential diagnoses) ,Subclinical infection ,Spectroscopy, Near-Infrared ,business.industry ,Incidence (epidemiology) ,General Medicine ,Emergency department ,Oxygen ,Cerebrovascular Circulation ,Anesthesia ,Emergency Medicine ,Female ,medicine.symptom ,Respiratory Insufficiency ,business ,Airway - Abstract
Background and objectivesWe sought to evaluate the effect of adult procedural sedation on cerebral oxygenation measured by near-infrared spectroscopy (rSo2levels), and to assess whether respiratory depression occurring during procedural sedation was associated with decreases in cerebral oxygenation.MethodsWe performed a prospective, observational preliminary study on a convenience sample of adult patients (>18 years) undergoing unscheduled procedural sedation in the ED from August 2017 to September 2018 at Hennepin County Medical Center in Minneapolis, Minnesota. The primary outcome measures were rSo2values by level of sedation achieved and the incidence of cerebral hypoxaemia during procedural sedation (absolute rSo2≤60 or decrease ≥20% from baseline). The secondary outcome is the decrease in rSo2during episodes of respiratory adverse events (AEs), defined by respiratory depression requiring supportive airway measures.ResultsWe enrolled 100 patients (53% female). The median (IQR) rSo2values (%) by each level of sedation achieved on the Observer Assessment of Alertness and Sedation (OAAS) scale 1–5, respectively, were 74 (69–79), 74 (70–79), 74 (69–79), 75 (69–80), 72 (68–76). The incidence of cerebral hypoxaemia at any point within the sedation (absolute rSo22reduction more than 20% from baseline value; the median (IQR) observed minimum rSo2in these patients was 58 (56–59). We observed respiratory depression in 65 patients via standard monitoring; of these, 39 (60%) required at least one supportive airway measure, meeting the definition of a respiratory AE. During these AEs, 15% (6/39) demonstrated cerebral hypoxaemia with a median (IQR) minimum rSo2of 58 (57–59). Four patients (4%) had cerebral hypoxaemia without a respiratory AE.ConclusionCerebral oximetry may represent a useful tool for procedural sedation safety research to detect potential subclinical changes that may be associated with risk, but appears neither sensitive nor specific for routine use in clinical practice.
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- 2021
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105. Cleft Palate Repair in Robin Sequence following Mandibular Distraction Osteogenesis Compared to Tongue-Lip Adhesion
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Zachary D. Zapatero, Christopher L. Kalmar, Jesse A. Taylor, Mychajlo S. Kosyk, Jordan W. Swanson, Anna R Carlson, and Scott P. Bartlett
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Robin Sequence ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Retrospective cohort study ,Perioperative ,Airway obstruction ,medicine.disease ,Surgery ,Palatoplasty ,Otorhinolaryngology ,Mandibular distraction ,medicine ,Oral Surgery ,business ,Complication ,Hypopnea - Abstract
Objective To evaluate the timing and safety of cleft palate (CP) repair in patients with Robin sequence (RS) treated with mandibular distraction osteogenesis (MDO) or tongue-lip adhesion (TLA) for airway obstruction. Design Retrospective cohort study. Setting Tertiary Pediatric Hospital during 2004-2020. Patients 148 patients with RS underwent MDO, 66 met inclusion by having MDO and followed by palatoplasty. 26 patients with RS underwent TLA, 14 met inclusion by having TLA and followed by palatoplasty. Main Outcome Measures Patient characteristics, hospital/operative details, postoperative complications, and polysomnographic (PSG) data were compared. Results Groups were well-matched except more patients with syndromes underwent MDO (N = 27, 41%, P ≤ .002). In the MDO and TLA cohorts, mean CP repair age was 12.8 ± 1.9 months and 14.6 ± 1.6 months, respectively ( P ≤ .002). Despite the earlier CP repair in the MDO group, there were no differences in peri-operative complication rates after palatoplasty in either group. All sleep respiratory parameters improved after MDO/TLA prior to palatoplasty P ≤ .050. All PSG parameters remained significantly improved after palatoplasty compared to preoperative values, P ≤ .043. Obstructive apnea hypopnea index and Oxygen saturation nadir further improved after palatoplasty within the MDO group, P ≤ .050, while no changes in the TLA group, P ≥ .500. Conclusions MDO was associated with earlier age at palatoplasty than TLA with a similar perioperative risk profile. In those patients with pre- and post-palatoplasty PSG data, palatoplasty was not associated with a deterioration in PSG parameters, and in fact in the MDO group, PSG data improved.
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- 2021
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106. Proteasome Inhibitors Interact Synergistically with BCL2, Histone Deacetylase, BET, and Jak Inhibitors against Cutaneous T-Cell Lymphoma Cells
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Suzanne Xu, Jingjing Ren, Julia M. Lewis, Kacie R. Carlson, and Michael Girardi
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Cell Biology ,Dermatology ,Molecular Biology ,Biochemistry - Published
- 2023
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107. Water Erosion Surrogate Modeling for Sustainability Assessments
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Olaf David, Francesco Serafin, Jack R Carlson, Holm Kipka, Jamie Ridgley, and Vamsi Venigalla
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- 2023
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108. Speech Outcomes following Mandibular Distraction Osteogenesis for Robin Sequence: Midchildhood Results
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Mychajlo S. Kosyk, Zachary D. Zapatero, Christopher L. Kalmar, Anna R. Carlson, Marilyn Cohen, Jordan W. Swanson, Scott P. Bartlett, and Jesse A. Taylor
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Cleft Palate ,Treatment Outcome ,Pierre Robin Syndrome ,Child, Preschool ,Nose Diseases ,Osteogenesis, Distraction ,Humans ,Infant ,Speech ,Surgery ,Mandible ,Child ,Retrospective Studies - Abstract
The aim of this study was to compare midchildhood speech outcomes in patients with nonsyndromic Robin sequence with cleft palate (RSCP) treated with mandibular distraction osteogenesis (MDO) to patients with nonsyndromic Veau class I and Veau class II cleft palate (CP).The authors performed a retrospective review of patients with nonsyndromic Robin sequence from 2000 to 2017, comparing those who underwent MDO to patients with nonsyndromic CP. Demographics, operative details, length of hospital stay, complications, and Pittsburgh Weighted Speech Scale scores were collected.Thirty-three patients met inclusion criteria in the MDO group with 127 patients as controls. Despite similar median age (RSCP, 4.5 years; CP only, 4.6 years) and Veau cleft type at early evaluation, there was a significant increase in composite Pittsburgh Weighted Speech Scale score within the MDO cohort ( P ≤ 0.002); specifically, with worse visible nasal emission ( P ≤ 0.007), hypernasality ( P ≤ 0.001), and compensatory articulation ( P ≤ 0.015). However, these differences were not present at age-matched midchildhood evaluation (median, RSCP, 6.5; CP only, 7.1; P ≥ 0.092). Median age-matched follow-up was 6.4 years in the MDO group and 7.1 years in the control group ( P ≥ 0.136). There was also no difference in the rate of secondary speech surgery at midchildhood evaluation ( P ≥ 0.688).The authors' retrospective comparison of speech outcomes in RSCP versus CP only demonstrates no difference in midchildhood speech, conflicting with recent reports. Although patients with Robin sequence treated with MDO had worse visible nasal emission, hypernasality, and compensatory articulation in early childhood, this appears to have resolved in the interim without additional intervention. Longitudinal follow-up is needed to fully understand the speech ramifications of RSCP.Risk, II.
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- 2022
109. Meeting a threat of the Anthropocene: Taste avoidance of metal ions by
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Shuke, Xiao, Lisa S, Baik, Xueying, Shang, and John R, Carlson
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Anthropogenic Effects ,Taste Perception ,Environmental Exposure ,Receptors, Ionotropic Glutamate ,Drosophila melanogaster ,Aedes ,Escape Reaction ,Cations ,Metals, Heavy ,Taste ,Avoidance Learning ,Animals ,Drosophila Proteins ,Humans - Abstract
The Anthropocene Epoch poses a critical challenge for organisms: they must cope with new threats at a rapid rate. These threats include toxic chemical compounds released into the environment by human activities. Here, we examine elevated concentrations of heavy metal ions as an example of anthropogenic stressors. We find that the fruit fly
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- 2022
110. Untapped policy avenues to protect coral reef ecosystems
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Rachel R. Carlson, Shawna A. Foo, John H. R. Burns, and Gregory P. Asner
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Multidisciplinary ,Policy ,Coral Reefs ,Animals ,Anthozoa ,Ecosystem ,Environmental Policy - Abstract
Coral reefs are experiencing severe decline, and urgent action is required at local and global scales to curb ecosystem loss. Establishing new regulations to protect corals, however, can be time consuming and costly, and it is therefore necessary to leverage existing legal instruments, such as policies originally designed to address terrestrial rather than marine activities, to prevent coral reef degradation. Focusing on the United States, but drawing on successful examples worldwide, we present actionable pathways to increase coral protections under legislation that was originally designed to advance clean freshwater, safe drinking water, and emergency management. We identify specific legal policies and procedures (e.g., industrial permit limits, nonpoint source management incentives, and floodplain restoration programs) that can curb coral reef pollution and can be extended to other countries with similar regulations in place. Coral reef practitioners should consider a broad array of currently underused, actionable, and intersecting environmental policies that can be applied to mitigate coral stress.
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- 2022
111. Resource loss from technology overload and its impact on work-family conflict: Can leaders help?
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Kenneth J. Harris, Ranida B. Harris, John R. Carlson, and Dawn S. Carlson
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- 2015
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112. The extent of buildings in wildland vegetation of the conterminous U.S. and the potential for conservation in and near National Forest private inholdings
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Amanda R. Carlson, Volker C. Radeloff, David P. Helmers, Miranda H. Mockrin, Todd J. Hawbaker, and Anna Pidgeon
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Urban Studies ,Ecology ,Management, Monitoring, Policy and Law ,Nature and Landscape Conservation - Published
- 2023
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113. Information and communication technology incivility aggression in the workplace: Implications for work and family.
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Suzanne Zivnuska, Dawn S. Carlson, John R. Carlson, Kenneth J. Harris, Ranida B. Harris, and Matthew Valle
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- 2020
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114. Social media advertising: How online motivations and congruency influence perceptions of trust
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Jeffrey R. Carlson, Joseph Pancras, William T. Ross, Sara Hanson, and Jacqueline Rousseau-Anderson
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Social Psychology ,Perception ,media_common.quotation_subject ,Advertising ,Social media ,Psychology ,Applied Psychology ,Uses and gratifications theory ,media_common - Published
- 2021
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115. An Image-Based Localization Algorithm for Catheter Navigation in the Left Atrium.
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Aditya B. Koolwal, Federico Barbagli, Christopher R. Carlson, David H. Liang, and Fritz B. Prinz
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- 2008
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116. Task-Space Control of Continuum Manipulators with Coupled Tendon Drive.
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David B. Camarillo, Christopher R. Carlson, and J. Kenneth Salisbury
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- 2008
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117. An Incremental Method for Registering Electroanatomic Mapping Data to Surface Mesh Models of the Left Atrium.
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Aditya B. Koolwal, Federico Barbagli, Christopher R. Carlson, and David H. Liang
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- 2008
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118. Vision based 3-D shape sensing of flexible manipulators.
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David B. Camarillo, Kevin E. Loewke, Christopher R. Carlson, and J. Kenneth Salisbury
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- 2008
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119. The transcription factor CREB1 is a mechanistic driver of immunogenicity and reduced HIV-1 acquisition following ALVAC vaccination
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Robert Parks, Kelly E. Seaton, Barton F. Haynes, Jim Tartaglia, Jeffrey Tomalka, Muhammad Bilal Latif, Georgia D. Tomaras, Slim Fourati, Ana María González, Adam Pelletier, Nelson L. Michael, Richard A. Koup, Rafick Pierre Sekaly, Peter Wilkinson, Genoveffa Franchini, Merlin L. Robb, Norman L. Letvin, Kathryn Furr, Sampa Santra, Michelle A. Lifton, Nicole L. Yates, Ashish Sharma, and Kevin R. Carlson
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Innate immune system ,Immunogenicity ,Immunology ,Antigen presentation ,Simian immunodeficiency virus ,Biology ,medicine.disease_cause ,Acquired immune system ,Vaccine efficacy ,Vaccination ,Immune system ,medicine ,Immunology and Allergy - Abstract
Development of effective human immunodeficiency virus 1 (HIV-1) vaccines requires synergy between innate and adaptive immune cells. Here we show that induction of the transcription factor CREB1 and its target genes by the recombinant canarypox vector ALVAC + Alum augments immunogenicity in non-human primates (NHPs) and predicts reduced HIV-1 acquisition in the RV144 trial. These target genes include those encoding cytokines/chemokines associated with heightened protection from simian immunodeficiency virus challenge in NHPs. Expression of CREB1 target genes probably results from direct cGAMP (STING agonist)-modulated p-CREB1 activity that drives the recruitment of CD4+ T cells and B cells to the site of antigen presentation. Importantly, unlike NHPs immunized with ALVAC + Alum, those immunized with ALVAC + MF59, the regimen in the HVTN702 trial that showed no protection from HIV infection, exhibited significantly reduced CREB1 target gene expression. Our integrated systems biology approach has validated CREB1 as a critical driver of vaccine efficacy and highlights that adjuvants that trigger CREB1 signaling may be critical for efficacious HIV-1 vaccines. Understanding the mechanistic basis of vaccine efficacy is crucial to the development of next-generation vaccines. Sekaly and colleagues find that activation of the transcription factor CREB1 by the RV144 HIV-1 vaccine underpins the induction of robust adaptive immunity.
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- 2021
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120. The interplay between sperm-mediated and care-mediated paternal effects in threespine sticklebacks
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Alison M. Bell, Erika R. Carlson, and Jennifer K. Hellmann
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Phenotypic plasticity ,biology ,Hatching ,Offspring ,Stickleback ,Zoology ,Gasterosteus ,biology.organism_classification ,Affect (psychology) ,Sperm ,Article ,Animal Science and Zoology ,Paternal care ,Ecology, Evolution, Behavior and Systematics - Abstract
The environment experienced by one generation can influence the phenotypes of future generations. Because parental cues can be conveyed to offspring at multiple points in time, ranging from fertilization to posthatching/parturition, offspring can potentially receive multiple cues from their parents via different mechanisms. We have relatively little information regarding how different mechanisms operate in isolation and in tandem, but it is possible, for example, that offspring phenotypes induced by nongenetic changes to gametes may be amplified by, mitigated by, or depend upon parental care. Here, we manipulated paternal experience with predation risk prior to fertilization in threespine stickleback, Gasterosteus aculeatus, and then examined the potential of paternal care to mitigate and/or amplify sperm-mediated paternal effects. Specifically, we compared (1) offspring of predator-exposed fathers who were reared without paternal care, (2) offspring of predator-exposed fathers who were reared with paternal care, (3) offspring of control (unexposed) fathers who were reared without paternal care and (4) offspring of control fathers who were reared with paternal care. We found that offspring of predator-exposed fathers were less active and had higher cortisol following a simulated predator attack. Although predator-exposed males shifted their paternal care behaviours – reduced fanning early in egg development and increased fanning right before egg hatching compared to control males – this shift in paternal behavior did not appear to affect offspring traits. This suggests that paternal care neither amplifies nor compensates for these phenotypic effects induced by sperm and that nongenetic changes induced by sperm may occur independently of nongenetic changes induced by paternal care. Overall, these results underscore the importance of considering how parents may have multiple nongenetic mechanisms by which they can influence offspring.
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- 2021
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121. Tracheotomies in COVID-19 Patients: Protocols and Outcomes
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Kyle Houston, Eric R. Carlson, Michael Winstead, Soheil Vahdani, and R. Eric Heidel
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Coronavirus disease 2019 (COVID-19) ,medicine.medical_treatment ,Article ,03 medical and health sciences ,Tracheostomy ,0302 clinical medicine ,Tracheotomy ,medicine ,Humans ,Intubation ,Predictor variable ,Retrospective Studies ,Mechanical ventilation ,Medical treatment ,SARS-CoV-2 ,business.industry ,COVID-19 ,Retrospective cohort study ,030206 dentistry ,Respiration, Artificial ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Anesthesia ,Cohort ,Surgery ,Oral Surgery ,business - Abstract
PURPOSE: Approximately 3-15% of COVID-19 patients will require prolonged mechanical ventilation thereby requiring consideration for tracheotomy. Guidelines for tracheotomy in this cohort of patients are therefore required with assessed outcomes of tracheotomies. PATIENTS AND METHODS: A retrospective chart review was performed of COVID-19 patients undergoing tracheotomy. Inclusion criteria were the performance of a tracheotomy in COVID-19 positive patients between March 11 and December 31, 2020. Exclusion criteria were lack of consent, extubation prior to the performance of a tracheotomy, death prior to the performance of the tracheotomy, and COVID-19 patients undergoing tracheotomy who tested negative twice after medical treatment. The primary predictor variable was the performance of a tracheotomy in COVID-19 positive patients and the primary outcome variable was the time to cessation of mechanical ventilation with the institution of supplemental oxygen via trach mask. RESULTS: Seventeen tracheotomies were performed between 4-25 days following intubation (meanâ¯=â¯17 days). Seven patients died between 4 and 16 days (meanâ¯=â¯8.7 days) following tracheotomy and 10 living patients realized cessation of mechanical ventilation from 4 hours to 61 days following tracheotomy (meanâ¯=â¯19.3 days). These patients underwent tracheotomy between 4 and 22 days following intubation (meanâ¯=â¯14 days). The 7 patients who died following tracheotomy underwent the procedure between 7 and 25 days following intubation (meanâ¯=â¯18.2 days). Seven patients underwent tracheotomy on or after 20 days of intubation and 3 survived (43%). Ten patients underwent tracheotomy before 20 days of intubation and 7 patients survived (70%). Significant differences between the mortality groups were detected for age (Pâ¯=â¯.006), and for P/F ratio at time of consult (Pâ¯=â¯.047) and the time of tracheotomy (Pâ¯=â¯.03). CONCLUSIONS: Tracheotomies are safely performed in COVID-19 patients with a standardized protocol. The timing of tracheotomy in COVID-19 patients is based on ventilator parameters, P/F ratio, patient prognosis, patient advanced directives, and family wishes.
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- 2021
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122. Prolonged Detection of Zika Virus in Vaginal Secretions and Whole Blood
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Kristy O. Murray, Rodion Gorchakov, Anna R. Carlson, Rebecca Berry, Lilin Lai, Muktha Natrajan, Melissa N. Garcia, Armando Correa, Shital M. Patel, Kjersti Aagaard, and Mark J. Mulligan
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Zika virus ,viruses ,infection ,traveler ,PCR ,virus isolation ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
Infection with Zika virus is an emerging public health crisis. We observed prolonged detection of virus RNA in vaginal mucosal swab specimens and whole blood for a US traveler with acute Zika virus infection who had visited Honduras. These findings advance understanding of Zika virus infection and provide data for additional testing strategies.
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- 2017
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123. Video analytics for retail.
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Andrew W. Senior, Lisa M. Brown, Arun Hampapur, Chiao-Fe Shu, Yun Zhai, Rogério Schmidt Feris, Ying-li Tian, Sergio Borger, and Christopher R. Carlson
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- 2007
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124. S3: The IBM Smart Surveillance System: From Transactional Systems to Observational Systems.
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Arun Hampapur, Sergio Borger, Lisa M. Brown, Christopher R. Carlson, Jonathan H. Connell, Max Lu, Andrew W. Senior, V. Reddy, Chiao-Fe Shu, and Ying-li Tian
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- 2007
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125. Optical-Frequency Measurements with a Kerr Microcomb and Photonic-Chip Supercontinuum
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Erin S. Lamb, David R. Carlson, Daniel D. Hickstein, Jordan R. Stone, Scott A. Diddams, and Scott B. Papp
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- 2018
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126. A receptor and neuron that activate a circuit limiting sucrose consumption
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Ryan M Joseph, Jennifer S Sun, Edric Tam, and John R Carlson
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taste ,feeding inhibition ,dietary regulation ,ionotropic receptor ,gustatory receptor ,pharynx ,Medicine ,Science ,Biology (General) ,QH301-705.5 - Abstract
The neural control of sugar consumption is critical for normal metabolism. In contrast to sugar-sensing taste neurons that promote consumption, we identify a taste neuron that limits sucrose consumption in Drosophila. Silencing of the neuron increases sucrose feeding; optogenetic activation decreases it. The feeding inhibition depends on the IR60b receptor, as shown by behavioral analysis and Ca2+ imaging of an IR60b mutant. The IR60b phenotype shows a high degree of chemical specificity when tested with a broad panel of tastants. An automated analysis of feeding behavior in freely moving flies shows that IR60b limits the duration of individual feeding bouts. This receptor and neuron provide the molecular and cellular underpinnings of a new element in the circuit logic of feeding regulation. We propose a dynamic model in which sucrose acts via IR60b to activate a circuit that inhibits feeding and prevents overconsumption.
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- 2017
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127. Data Curation Network: How Do We Compare? A Snapshot of Six Academic Library Institutions’ Data Repository and Curation Services
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Lisa R. Johnston, Jake R. Carlson, Patricia Hswe, Cynthia Hudson-Vitale, Heidi Imker, Wendy Kozlowski, Robert K. Olendorf, and Claire Stewart
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digital repositories ,research data management (RDM) services ,institutional repositories ,academic libraries ,scholarly communications ,data curation ,Bibliography. Library science. Information resources - Abstract
Objective: Many academic and research institutions are exploring opportunities to better support researchers in sharing their data. As partners in the Data Curation Network project, our six institutions developed a comparison of the current levels of support provided for researchers to meet their data sharing goals through library-based data repository and curation services. Methods: Each institutional lead provided a written summary of their services based on a previously developed structure, followed by group discussion and refinement of descriptions. Service areas assessed include the repository services for data, technologies used, policies, and staffing in place. Conclusions: Through this process we aim to better define the current levels of support offered by our institutions as a first step toward meeting our project's overarching goal to develop a shared staffing model for data curation across multiple institutions.
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- 2017
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128. Discussion: Early Cleft Lip Repair: Demonstrating Efficacy in the First 100 Patients
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Anna R. Carlson and Jesse A. Taylor
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Cleft Palate ,Cleft Lip ,Humans ,Infant ,Surgery ,Plastic Surgery Procedures - Published
- 2022
129. Author response: Sugar sensation and mechanosensation in the egg-laying preference shift of Drosophila suzukii
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Wanyue Wang, Hany KM Dweck, Gaëlle JS Talross, Ali Zaidi, Joshua M Gendron, and John R Carlson
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- 2022
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130. Surgical Education in Oral and Maxillofacial Surgery: An Evolving Paradigm
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Leslie, Halpern and Eric R, Carlson
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- 2022
131. Faculty Development for the Twenty-First Century: Teaching the Teachers
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Eric R, Carlson and Eileen, McGowan
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Faculty development is a poorly understood and incompletely executed initiative in undergraduate and graduate medical and dental education programs. Despite significant change in the delivery of health care over the past several decades, the education of students and residents has followed a legacy path of business as usual. Some faculty have incorrectly assumed that content expertise transfers to teaching expertise. The insistence for robust faculty development programs on the part of accrediting and other professional organizations has created a call to action, but much work has yet to be done. It is therefore essential that leaders in these programs develop a sense of urgency to teach the teachers lest our students and residents will replicate outdated methods, unsystematically teach themselves, and fall victim to an educational system that is grossly inadequate. It is the purpose of this article to enhance undergraduate and graduate medical and dental education by offering viable change options, specifically targeted to improving historical trends by emphasizing the importance of growth mindsets, emotional intelligence, the creation of holding environments, and stimulating enthusiasm for lifelong learning as part of twenty-first century strategies for faculty development.
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- 2022
132. Synapsin 2 regulates NCX1 trafficking and is down-regulated in the failing myocardium, which increases the risk of ventricular arrhythmia and heart failure mortality
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A H Ottesen, C Raiborg, A O Melleby, M S H Hansen, T L Hafver, R A Sandbu, J M Aronsen, L Etholm, M K Stokke, I Sjaastad, W E Louch, C R Carlson, G Christensen, and H Rosjo
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Cardiology and Cardiovascular Medicine - Abstract
Background Synapsin 2 (Syn2) modulates vesicle transport in the post-synaptic terminal in the brain, and has been linked to sudden unexplained death in epilepsy, but has never previously been studied in the myocardium. Purpose Given the association of vesicle transport in the brain and the heart, and the similarity of sudden death in epilepsy and cardiac arrhythmias, we have studied the role of Syn2 in the heart. Methods We explored left ventricular (LV) Syn2 levels in various experimental heart failure (HF) models and assessed mortality in Syn2 knock out (KO) mice vs. wild type (WT) littermates after pressure-overload induced by aortic banding. We used confocal imaging and virus transduction to characterize Syn2 localization and co-localization with NCX and Rab proteins. We verified Syn2-NCX interaction by immunoprecipitation, mass spectrometry, and surface resonance experiments. We investigated calcium handling in isolated cardiomyocytes. Susceptibility for ventricular arrhythmias was also tested in Langendorff-perfused hearts. Results We found Syn2, but not synapsin 1, to be expressed in the myocardium. LV Syn2 levels were markedly downregulated in the failing myocardium after experimental myocardial infarction or aortic banding. Syn2 KO mice had increased mortality compared to WT littermates following aortic banding, but demonstrated no clear clinical or echocardiographic phenotype, except reduced fractional shortening. Given no clear etiology for increased mortality, we next explored the association between Syn2 and ion-channel vesicle transport, calcium handling and ventricular arrhythmias. By confocal imaging and viral transduction, we found Syn2 to localize in vesicles in HL-1 cells, where Syn2 co-localized with Rab2, Rab3, Rab7 and NCX1. Syn2 was also found to interact with NCX1 as tested by immunoprecipitation, mass spectrometry, and surface resonance experiments. NCX1 levels were downregulated in the membrane fraction in the left ventricle of Syn2 KO mice compared to WT littermates following aortic banding. We observed increased frequency of calcium sparks and waves in isolated Syn2 KO cardiomyocytes compared to controls. We found enhanced susceptibility of Syn2 KO mice for ventricular arrhythmias compared to WT littermates mice during ISO stress testing in explanted hearts. Hearts from Syn2 KO mice also demonstrated more severe ventricular arrhythmias compared to hearts from WT littermates controls. Conclusions We report for the first time that Syn2 is expressed in the myocardium and that Syn2 seems to regulate NCX1 transport and localization. We also found markedly reduced LV Syn2 levels in HF individuals and mice that lacked Syn2 more frequent displayed severe ventricular arrhythmias and had increased mortality. Hence, our data suggest that reduced Syn2 in the failing myocardium may lead to increased mortality, possibly linked to altered NCX trafficking and subsequent ventricular arrhythmias. Funding Acknowledgement Type of funding sources: None.
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- 2022
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133. Facial Scars: Do Position and Orientation Matter?
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Zachary D. Zapatero, Clifford I. Workman, Christopher L. Kalmar, Stacey Humphries, Mychajlo S. Kosyk, Anna R. Carlson, Jordan W. Swanson, Anjan Chatterjee, and Jesse A. Taylor
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Cicatrix ,Beauty ,Attitude ,Face ,Surveys and Questionnaires ,Humans ,Surgery ,Lip - Abstract
This study tested the core tenets of how facial scars are perceived by characterizing layperson response to faces with scars. The authors predicted that scars closer to highly viewed structures of the face (i.e., upper lip and lower lid), scars aligned against resting facial tension lines, and scars in the middle of anatomical subunits of the face would be rated less favorably.Volunteers aged 18 years and older from the United States were recruited through Amazon's Mechanical Turk to complete a face rating survey. Scars were digitally added in different locations and orientations for a total of 14 unique scars added to each face. Each participant rated 50 different faces on confidence, friendliness, and attractiveness. Data were analyzed using linear mixed effects models.A total of 88,850 ratings [82,990 scarred (93.4 percent)] for attractiveness, friendliness, and confidence were analyzed. In univariate linear mixed effects models, the presence of a facial scar did not significantly impact attractiveness (β = 0.016, SE = 0.014, z = 1.089, p = 0.276). A second set of linear mixed effects models identified interactions between location, subunit placement, and orientation to facial tension lines. Scars located on the lower lid mid subunit perpendicular to facial tension lines were rated less attractive (β = -0.065, SE = 0.028, z = -2.293, p = 0.022).On average, a single well-healed facial scar does not negatively affect first impressions of attractiveness, confidence, or friendliness. Specific scar location and orientation combinations, however, such as a perpendicular scar at the mid-lower eyelid, may result in lower perceived attractiveness, confidence, and friendliness.Risk, III.
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- 2022
134. How Low Should We Go? Safety and Craniometric Impact of the Low Occipital Osteotomy in Posterior Vault Remodeling
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Zachary D. Zapatero, Mychajlo S. Kosyk, Christopher L. Kalmar, Liana Cheung, Anna R. Carlson, Gregory G. Heuer, Scott P. Bartlett, Jesse A. Taylor, Shih-Shan Lang, and Jordan W. Swanson
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Craniosynostoses ,Cephalometry ,Skull ,Osteogenesis, Distraction ,Humans ,Surgery ,Retrospective Studies ,Osteotomy - Abstract
A larger volume cranial vault expansion is likely facilitated by a low posterior cranial osteotomy beneath the torcula; however, this may impart an increased risk of venous bleeding. The authors compared the safety of infratorcular versus supratorcular osteotomy in patients undergoing posterior vault reconstruction or posterior vault distraction osteogenesis and analyzed volumetric changes.Patients undergoing initial posterior vault reconstruction or distraction osteogenesis between 2009 and 2021 at the authors' institution were grouped by occipital osteotomy location and analyzed retrospectively. Craniometric analysis was performed if patients had high-resolution computed tomography scans available within 180 days preoperatively and postoperatively.A total of 187 patients were included: 106 (57 percent) who underwent posterior vault distraction osteogenesis and 81 (43 percent) who underwent posterior vault reconstruction. Infratorcular osteotomy was more common in reconstruction [ n = 65 (80 percent)] than in distraction osteogenesis [ n = 61 (58 percent); p0.002]. Blood transfused was similar between low and high osteotomy cohorts in the distraction osteogenesis ( p = 0.285) and reconstruction ( p = 0.342) groups. However, median transfused blood volume per kilogram of patient weight was greater in the low versus high osteotomy distraction osteogenesis ( p = 0.010) and reconstruction ( p = 0.041) cohorts. Intraoperative venous sinus injury was rare. In the distraction osteogenesis cohort, there was increased median intracranial volumetric gain in the low (263 ml) compared with the high osteotomy cohort (127 ml; p = 0.043); however, when controlled for distraction distance, only a trend was observed ( p = 0.221). Patients undergoing distraction osteogenesis showed a larger median intracranial volume increase (168 ml) compared with those undergoing reconstruction (73 ml; p0.001).Infratorcular osteotomy can be performed safely in most patients undergoing cranial vault remodeling and does not appear to be associated with greater hemodynamic instability or sinus injury.Therapeutic, III.
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- 2022
135. Sidney Altman and the RNA revolution
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John R. Carlson
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Canada ,Chemistry ,Multidisciplinary ,History, 20th Century ,Molecular Biology ,Ribonuclease P ,United States ,Nobel Prize - Published
- 2022
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136. Pre-Employment Transition Services: What Secondary Special Education Teachers Need to Know
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Sarah R. Carlson
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Rehabilitation ,business.industry ,medicine.medical_treatment ,media_common.quotation_subject ,Transition (fiction) ,Public relations ,Special education ,Education ,Clinical Psychology ,State (polity) ,Need to know ,Vocational education ,Workforce ,Developmental and Educational Psychology ,medicine ,business ,Psychology ,media_common - Abstract
In July 2014, the Workforce Innovation and Opportunity Act (WIOA) was signed into law, amending the Rehabilitation Act of 1998 and establishing new workforce initiatives for state vocational rehabilitation (VR) agencies. The passage of WIOA led to the expansion of VR services, including the requirement to provide pre-employment transition services (Pre-ETS) to eligible and potentially eligible students with disabilities to support their transition from school to postsecondary employment and education. Pre-ETS afford students with disabilities an early start at job exploration, maximizing their potential to enter competitive integrated employment. It is imperative for secondary special education teachers to inform students and their families of the availability of Pre-ETS. To do this, school personnel must first be knowledgeable about Pre-ETS themselves. This column provides secondary special education teachers with a general understanding of Pre-ETS and furnishes them with strategies for securing these services on behalf of students with disabilities.
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- 2021
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137. Transcriptome of HPβCD-treated Niemann-Pick disease type C1 cells highlights GPNMB as a biomarker for therapeutics
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Nisc Comparative Sequencing Program, Jorge L Rodriguez-Gil, Steven R Carlson, Kerri L. Wallom, William J. Pavan, Dawn E. Watkins-Chow, Forbes D. Porter, Arturo Incao, Laura L. Baxter, Ryan K. Dale, Frances M. Platt, Cristin Davidson, Nicole Y. Farhat, and Nicholas L Johnson
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Genetic enhancement ,Hepatosplenomegaly ,Biology ,Transcriptome ,Mice ,Lipid biosynthesis ,Genetics ,medicine ,Animals ,Humans ,Eye Proteins ,Molecular Biology ,Genetics (clinical) ,Mice, Knockout ,Membrane Glycoproteins ,GPNMB ,nutritional and metabolic diseases ,Niemann-Pick Disease, Type C ,General Medicine ,Phenotype ,2-Hydroxypropyl-beta-cyclodextrin ,Disease Models, Animal ,Cancer research ,Biomarker (medicine) ,lipids (amino acids, peptides, and proteins) ,General Article ,medicine.symptom ,NPC1 ,Biomarkers - Abstract
The rare, fatal neurodegenerative disorder Niemann-Pick disease type C1 (NPC1) arises from lysosomal accumulation of unesterified cholesterol and glycosphingolipids. These subcellular pathologies lead to phenotypes of hepatosplenomegaly, neurological degeneration and premature death. The timing and severity of NPC1 clinical presentation is extremely heterogeneous. This study analyzed RNA-Seq data from 42 NPC1 patient-derived, primary fibroblast cell lines to determine transcriptional changes induced by treatment with 2-hydroxypropyl-β-cyclodextrin (HPβCD), a compound currently under investigation in clinical trials. A total of 485 HPβCD-responsive genes were identified. Pathway enrichment analysis of these genes showed significant involvement in cholesterol and lipid biosynthesis. Furthermore, immunohistochemistry of the cerebellum as well as measurements of plasma from Npc1m1N null mice treated with HPβCD and adeno-associated virus gene therapy suggests that one of the identified genes, GPNMB, may serve as a useful biomarker of treatment response in NPC1 disease. Overall, this large NPC1 patient-derived dataset provides a comprehensive foundation for understanding the genomic response to HPβCD treatment.
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- 2021
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138. Risk Factors for Occipital Step-Off Deformities in Posterior Vault Distraction Osteogenesis
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Scott P. Bartlett, Zachary D. Zapatero, Christopher L. Kalmar, Jordan W. Swanson, Elizabeth B. Card, Anna R Carlson, Mychajlo S. Kosyk, and Jesse A. Taylor
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Bicoronal craniosynostosis ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,General Medicine ,Patient specific ,Logistic regression ,Osteotomy ,Surgery ,Otorhinolaryngology ,Mann–Whitney U test ,Deformity ,Medicine ,Distraction osteogenesis ,medicine.symptom ,Craniofacial ,business - Abstract
PURPOSE The goal of this study was to investigate patient specific factors and surgical techniques that affect occipital step-off deformity in children undergoing posterior vault distraction osteogenesis (PVDO). METHODS Patients who underwent PVDO were retrospectively reviewed and included if a high resolution three-dimensional computed tomography scan was available 1-year post-distractor removal. Two craniofacial surgeons were blinded to individual subjects and presented with 3 still images of three-dimensional bone reconstructions and asked to rate the degree of step off: none, mild, moderate, or severe. The data were analyzed with multinomial logistic regressions and other appropriate statistics. RESULTS Forty-one patients met inclusion criteria. All patients had multisuture or bicoronal craniosynostosis. Multinomial logistic regression identified age at PVDO (Cox and Snell = 0.487, P
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- 2021
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139. Pediatric Orthognathic Surgery: National Analysis of Perioperative Complications
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Jordan W. Swanson, Zachary D. Zapatero, Jesse A. Taylor, Vijay A. Patel, Christopher L. Kalmar, Anna R Carlson, and Mychajlo S. Kosyk
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Reoperation ,medicine.medical_specialty ,medicine.medical_treatment ,Population ,Orthognathic surgery ,Specialties, Surgical ,Postoperative Complications ,Older patients ,Risk Factors ,medicine ,Humans ,Child ,Adverse effect ,education ,Retrospective Studies ,education.field_of_study ,Orthognathic Surgical Procedures ,business.industry ,Orthognathic Surgery ,General Medicine ,Perioperative ,medicine.disease ,Comorbidity ,Surgery ,Pneumonia ,Otorhinolaryngology ,Abnormality ,business - Abstract
BACKGROUND Orthognathic surgery has traditionally been performed after skeletal maturity. Although these procedures are also being performed in children, the implications of earlier intervention and specific risk factors in this younger population remain unknown. METHODS The American College of Surgeons National Surgical Quality Improvement Program Pediatric dataset was queried for orthognathic procedures performed in 2018. Complications, readmissions, and reoperations were analyzed with appropriate statistics. RESULTS Overall adverse event rate after orthognathic surgery in pediatric patients was 7.8% (n = 22 of 281), which were associated with having any comorbidity (P
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- 2021
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140. Perioperative Continuation of Biologic Medications Increases Odds of Periprosthetic Joint Infection in Patients With Inflammatory Arthropathy
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Brian C. Sauer, Victor R. Carlson, Jeremy M. Gililland, Chao-Chin Lu, Brenna Blackburn, and Lucas A. Anderson
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Arthritis, Infectious ,Biological Products ,medicine.medical_specialty ,Prosthesis-Related Infections ,business.industry ,Arthroplasty, Replacement, Hip ,Periprosthetic ,Odds ratio ,Perioperative ,medicine.disease ,Risk Factors ,Diabetes mellitus ,Internal medicine ,medicine ,Humans ,Orthopedics and Sports Medicine ,Dosing ,Arthroplasty, Replacement, Knee ,business ,Veterans Affairs ,Body mass index ,Retrospective Studies ,Kidney disease - Abstract
Background Rates of prosthetic joint infection (PJI) are elevated among patients with inflammatory arthropathy (IA). The effect of continuing biologic drugs perioperatively with regard to PJI is unknown. The purpose of this study is to compare rates of perioperative biologic continuation in IA patients who did and did not develop PJI after primary total joint arthroplasty (TJA). Methods All cases of PJI within 1 year of primary TJA in IA patients on biologic medications were retrospectively reviewed from 2005 to 2018 in the US Veterans Affairs Corporate Data Warehouse. Matched controls who did not develop PJI after TJA were populated from the same database. Biologic suspension, defined as medication interruption prior to TJA with surgery occurring after the end of the dosing cycle and resumption after wound healing, was compared among cases and controls. Results Biologic medications were continued through surgery in 35% (9/26) of patients who developed PJI compared to 14% (8/58) of controls (P = .031; adjusted odds ratio of 3.46 [1.11-10.78]). No significant difference existed among cases (n = 26) and controls (n = 58) for age, gender, procedure, body mass index, rates of diabetes or chronic kidney disease, smoking status, or preoperative opioid use (all P > .05). Conclusion With the limited sample sizes available in this study, we found an association with perioperative continuation of biologic medications and PJI. This data may provide support for current guidelines from the American Association of Hip and Knee Surgeons to withhold biologics before TJA with surgery scheduled at the end of the dosing cycle and medication resumption only after wound healing.
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- 2021
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141. Single Segment Neo-Bandeau Fronto-Orbital Advancement in Children With Craniosynostosis: Technique Adaptation and Craniometric Analysis
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Zachary D. Zapatero, Jordan W. Swanson, Mychajlo S. Kosyk, Laura S. Humphries, Christopher L. Kalmar, Anna R Carlson, Shih-Shan Lang, and Carrie E. Zimmerman
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Male ,Cephalometry ,medicine.medical_treatment ,Craniosynostosis ,Craniosynostoses ,Interquartile range ,medicine ,Humans ,Child ,Craniotomy ,Retrospective Studies ,Intracranial pressure ,business.industry ,Skull ,Infant ,Small sample ,General Medicine ,Craniometry ,medicine.disease ,Single segment ,medicine.anatomical_structure ,Otorhinolaryngology ,Surgery ,Tomography, X-Ray Computed ,Nuclear medicine ,business - Abstract
Fronto-orbital advancement (FOA) of the anterior skull and orbital bandeau is standard of care for craniosynostosis with anterior morphology. Fronto-orbital retrusion, temporal hollowing, and bony contour irregularities are commonly seen in long-term follow-up. In this study, we report several technical adaptations of a new FOA technique described in Fearon et al that help facilitate adaptation of the single-segment neo-bandeau FOA technique in preparation of use in younger patients, and perform a craniometric analysis of the technique. Five consecutive patients who underwent the single-segment neo-bandeau FOA in 2020 with available pre- and post-operative three-dimensional head computed tomography scans were studied. Using Materialise Mimics (Materialise, Ghent, Belgium), cranial length, cranial height, cranial widths, and intracranial volume were measured. Two (40%) patients were male and all were non-Hispanic White with a median age at surgery of 18.6 months (interquartile range 10.4-45.7). Three patients (60%) had bicoronal or other multi-suture craniosynostosis, and 1 each had metopic and sagittal craniosynostosis. Intraoperatively measured intracranial pressure decreased from 17.8 mmHg (R 13.0-20.0) before craniectomy to 4.8 mmHg (R 2.0-11.0; P = 0.038) after craniectomy. Anterior cranial width increased postoperatively (mean 92.6 mm; R 74.9-111.5 versus 117.6 mm; R 109.8-135.2, P = 0.005). Intracranial volume increased from preoperative (mean 1211 cm3; R 782-1949 cm3) to postoperative (1387 cm3; R 1022-2108 cm3; P = 0.009). The authors find in this small sample that a single-segment neo-bandeau FOA demonstrates volumetric expansion similar to conventional FOA techniques and is feasible in infants under 1 year of age.
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- 2021
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142. Craniometric and Volumetric Analysis of Posterior Vault Distraction Osteogenesis: 10 Year Update
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Mychajlo S. Kosyk, Zachary D. Zapatero, Scott P. Bartlett, Jesse A. Taylor, Anna R Carlson, Jordan W. Swanson, and Christopher L. Kalmar
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Younger age ,Turricephaly ,Cephalometry ,business.industry ,medicine.medical_treatment ,Skull ,Osteogenesis, Distraction ,Anterior cranial ,Infant ,General Medicine ,medicine.disease ,Craniosynostosis ,Craniosynostoses ,Otorhinolaryngology ,Interquartile range ,Cohort ,Cranial vault ,medicine ,Humans ,Distraction osteogenesis ,Surgery ,Child ,Nuclear medicine ,business ,Retrospective Studies - Abstract
PURPOSE The purpose of this study is to quantitatively establish the volumetric changes observed with posterior vault distraction osteogenesis in the anterior, middle, and posterior thirds of the cranial vault; characterize change in cranial length, width, and height, correlating these changes to demographic variables that may help identify why younger kids gain more volume; and describe the short-term position of the transport segment. METHODS Multisuture craniosynostosis patients who underwent posterior vault distraction osteogenesis were retrospectively reviewed. Pediatric, dose-reduced, thin cut helically acquired head computed tomography scans were analyzed on Materialise Mimics v22 (Materialise, Ghent, Belgium). Pre and post-PVDO and "old" and "young" cohort were compared. RESULTS Twenty-one patients met inclusion criteria. The change in cranial length was significantly less at a median of 14.9 mm [Interquartile range (IQR) 11.8, 31.6] compared to the X-ray measured AP distraction distance (30 mm [IQR 24, 33]; P
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- 2021
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143. High Rates of Spacer Fracture in the Setting of Extended Trochanteric Osteotomy With a Specific Thin-Core Articulating Antibiotic Hip Spacer
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Christopher L. Peters, Victor R. Carlson, Christopher E. Pelt, Jeremy M. Gililland, Alex J. Lancaster, and Lucas A. Anderson
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Reoperation ,High rate ,030222 orthopedics ,Core (anatomy) ,medicine.medical_specialty ,Prosthesis-Related Infections ,business.industry ,Arthroplasty, Replacement, Hip ,Prosthetic joint infection ,Periprosthetic ,Anti-Bacterial Agents ,Osteotomy ,Surgery ,03 medical and health sciences ,Treatment Outcome ,0302 clinical medicine ,Trochanteric osteotomy ,medicine ,Humans ,Orthopedics and Sports Medicine ,Implant ,business ,Complication ,Retrospective Studies ,Total hip arthroplasty - Abstract
Background Two-stage revision remains the standard of care for prosthetic joint infection after total hip arthroplasty. However, there are substantial complications associated with articulating antibiotic hip spacers. Handmade and molded spacers have been shown to have higher rates of spacer fracture than antibiotic-coated prostheses (ACPs). The aim of this study is to review outcomes with an implant that is often categorized as an ACP spacer, the Zimmer-Biomet StageOne Select Femoral Spacer (ZBSO). Methods A retrospective review was performed of 63 patients who underwent placement of a ZBSO. Patients were compared based on whether or not an extended trochanteric osteotomy (ETO) was performed using Fisher’s exact and t-tests. Results Five patients were excluded due to lack of follow-up or death shortly after stage 1 surgery, leaving 58 patients. Spacer fracture was noted in 5 of 58 patients (8.6%). Sixteen patients underwent ETO and 25.0% suffered a spacer fracture compared to 2.3% without ETO (odds ratio 13.7, P = .0248). There was no association between patient demographics or ETO length and spacer fracture. Two patients had periprosthetic fractures (3.4%) and 4 had dislocations (6.9%). Forty-nine patients (84.4%) went on to second-stage revision; of those 26.5% failed to clear the infection and required an average of 2.2 additional surgeries. Conclusion The ZBSO spacer has overall complication rates similar to previously reported spacer series. Although the ZBSO looks like an ACP spacer, in the setting of ETO, it behaves like a molded or handmade spacer with a high rate of spacer fracture (25%) due to the small diameter of the core. This implant should be used with caution in combination with an ETO.
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- 2021
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144. Discordant regulation of eIF2 kinase GCN2 and mTORC1 during nutrient stress
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Michael Langevin, Malcolm Watford, Jagannath Misra, Michael J. Holmes, Tracy G. Anthony, Kenneth R Carlson, Ronald C. Wek, Emily T. Mirek, X. Charlie Dong, and Hyeong-Geug Kim
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Cell Survival ,AcademicSubjects/SCI00010 ,mTORC1 ,Mechanistic Target of Rapamycin Complex 1 ,Protein Serine-Threonine Kinases ,Biology ,Mice ,03 medical and health sciences ,0302 clinical medicine ,Piperidines ,RNA, Transfer ,Stress, Physiological ,Genetics ,Animals ,Integrated stress response ,Phosphorylation ,Codon ,Molecular Biology ,Cells, Cultured ,Quinazolinones ,030304 developmental biology ,Mice, Knockout ,Protein Synthesis Inhibitors ,chemistry.chemical_classification ,0303 health sciences ,eIF2 ,Kinase ,Translation (biology) ,Amino acid ,Cell biology ,Mice, Inbred C57BL ,Gene Ontology ,Proteostasis ,Liver ,chemistry ,Polyribosomes ,biological phenomena, cell phenomena, and immunity ,Signal transduction ,030217 neurology & neurosurgery ,Signal Transduction - Abstract
Appropriate regulation of the Integrated stress response (ISR) and mTORC1 signaling are central for cell adaptation to starvation for amino acids. Halofuginone (HF) is a potent inhibitor of aminoacylation of tRNAPro with broad biomedical applications. Here, we show that in addition to translational control directed by activation of the ISR by general control nonderepressible 2 (GCN2), HF increased free amino acids and directed translation of genes involved in protein biogenesis via sustained mTORC1 signaling. Deletion of GCN2 reduced cell survival to HF whereas pharmacological inhibition of mTORC1 afforded protection. HF treatment of mice synchronously activated the GCN2-mediated ISR and mTORC1 in liver whereas Gcn2-null mice allowed greater mTORC1 activation to HF, resulting in liver steatosis and cell death. We conclude that HF causes an amino acid imbalance that uniquely activates both GCN2 and mTORC1. Loss of GCN2 during HF creates a disconnect between metabolic state and need, triggering proteostasis collapse.
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- 2021
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145. Technostress and the entitled employee: impacts on work and family
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Suzanne Zivnuska, Matthew Valle, John R. Carlson, Dawn S. Carlson, Briceön Wiley, Ranida B. Harris, and Kenneth J. Harris
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business.industry ,Work–family conflict ,05 social sciences ,02 engineering and technology ,Entitlement ,Library and Information Sciences ,Burnout ,Public relations ,Computer Science Applications ,Work (electrical) ,Information and Communications Technology ,020204 information systems ,0502 economics and business ,Technostress ,0202 electrical engineering, electronic engineering, information engineering ,Psychology ,business ,050203 business & management ,Information Systems - Abstract
PurposeThe purpose of this study is to understand the impact of techno-overload and techno-invasion on work and family. Specifically, we focus on intention to turnover in the work domain, work-family conflict in the work-family domain, and family burnout in the family domain. Furthermore, this study examines the moderating role of entitlement, a personality variable, in this process.Design/methodology/approachUsing a sample of 253 people who were using technology to complete their work over two time periods, the relationships were examined using hierarchical moderated regression analysis.FindingsThe results revealed that both techno-overload and techno-invasion were significantly related to greater turnover intentions, higher work-family conflict, and greater family burnout. In addition, entitlement played a moderating role such that those who were higher in entitlement had stronger techno-overload-outcome and technostress invasion-outcome relationships.Practical implicationsThese findings may provide managers key insights to help manage employees, especially those with an inflated sense of entitlement, to mitigate the serious negative outcomes associated with techno-overload and techno-invasion. In particular, both techno- overload and techno-invasion had minimal impact on negative outcomes when employee entitlement was lower. However, when employee entitlement was higher, techno-overload and techno-invasion had considerable negative effects.Originality/valueDue to the ubiquitous nature of information-communication technology (ICT) in organizations today, individuals often experience techno-overload and techno-invasion. This research utilized conservation of resources theory to examine these relationships. This study established the relationships of both techno-overload and techno-invasion with key organizational and family outcomes and points to the critical role of the personality variable, entitlement, in this process. The results provide theoretical and practical advancement in the role of technology with people in organizations today.
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- 2021
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146. Sleep Education for Elders Program (SLEEP): Promising Pilot Results of a Virtual, Health Educator-Led, Community-Delivered Sleep Behavior Change Intervention
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Robin M. Tucker, Anita Carter, Dawn Contreras, Breanne R Carlson, and Christopher L. Drake
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medicine.medical_specialty ,insomnia ,Excessive daytime sleepiness ,Pittsburgh Sleep Quality Index ,03 medical and health sciences ,Behavioral Neuroscience ,0302 clinical medicine ,Nature and Science of Sleep ,Insomnia ,medicine ,Applied Psychology ,Original Research ,Sleep hygiene ,sleep hygiene ,business.industry ,Epworth Sleepiness Scale ,adult ,Behavior change ,public health ,Sleep in non-human animals ,030228 respiratory system ,Physical therapy ,Health education ,medicine.symptom ,multidimensional sleep health ,business ,030217 neurology & neurosurgery - Abstract
Robin M Tucker,1 Dawn A Contreras,2 Breanne R Carlson,2 Anita Carter,2 Christopher L Drake3 1Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, USA; 2Health and Nutrition Institute, Michigan State University Extension, Michigan State University, East Lansing, MI, 48824, USA; 3Division of Sleep Medicine, Henry Ford Health System, Detroit, MI, 48202, USACorrespondence: Robin M TuckerDepartment of Food Science and Human Nutrition, Michigan State University, 2110 S. Anthony Hall, 474 S. Shaw Ln, East Lansing, MI, 48824, USATel +1-517-353-3408Email tucker98@msu.eduPurpose: Sleep problems pose serious public health concerns, and evidence suggests that the problem is worsening. Both sufficient sleep quantity and quality are needed for optimal health, particularly among older adults, but access to sleep care can be difficult. This study examined the efficacy of a six-week sleep behavior change program designed for older adults that was delivered virtually by health educators.Participants and Methods: This quasi-experimental pilot study (intervention n = 22; control n = 31) explored the effects of the Sleep Education for Elders Program (SLEEP) on sleep outcomes, which included: 1) sleep quality, measured by the Pittsburgh Sleep Quality Index (PSQI); 2) sleep duration, extracted from the PSQI; 3) insomnia symptoms, measured by the Insomnia Severity Index; 4) sleep hygiene behaviors, obtained from the Sleep Hygiene Index; and 5) excessive daytime sleepiness, measured by the Epworth Sleepiness Scale.Results: After SLEEP, the intervention group experienced significantly improved sleep quality (p < 0.001), a reduction in maladaptive sleep hygiene behaviors (p = 0.007), and reduced daytime sleepiness (p < 0.027) compared to the control group. Effect sizes for all five sleep measures were medium or large. In the intervention group, all changes were judged to be clinically meaningful (≥ 0.5 SD) except for improvements in daytime sleepiness.Conclusion: These data support the efficacy of a group-based, virtual behavior change intervention in improving sleep outcomes among older adults.Keywords: insomnia, sleep hygiene, adult, public health, multidimensional sleep health
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- 2021
147. Are We Being Fooled by Fluoroscopy? Distortion May Affect Limb-Length Measurements in Direct Anterior Total Hip Arthroplasty
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Graham J. DeKeyser, Iain S. Elliott, Christopher E. Pelt, Jeremy M. Gililland, Lucas A. Anderson, and Victor R. Carlson
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medicine.medical_specialty ,Arthroplasty, Replacement, Hip ,Horizontal line test ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,law ,Distortion ,medicine ,Humans ,Fluoroscopy ,Orthopedics and Sports Medicine ,Retrospective Studies ,030222 orthopedics ,medicine.diagnostic_test ,business.industry ,Significant difference ,Image intensifier ,Acetabulum ,Limb length ,Orthopedic surgery ,Hip Prosthesis ,Nuclear medicine ,business ,Total hip arthroplasty - Abstract
Distortion is an intrinsic phenomenon associated with image-intensified fluoroscopy that is both poorly understood and infrequently appreciated by orthopedic surgeons. Little information exists regarding its potential influence on intraoperative parameters during orthopedic surgery, let alone during direct anterior (DA) total hip arthroplasty (THA). The purpose of this study was to quantify the amount of potential error caused by fluoroscopic distortion during DA THA.Intra-operative fluoroscopic pelvic images from 74 DA THAs were reviewed by two independent readers. All images were obtained using the same fluoroscopic C-arm unit with a radiopaque grid attached to the image intensifier. The vertical distortion from a straight central horizontal line at the peripheries of images were measured and summed to yield the combined vertical distortion similar to how a surgeon calculates a side to side comparison of limb lengths. Simple linear regression was used to evaluate associations between total distortion and patient demographics, operating theaters, and various operative parameters.The average combined distortion was 10.0mm (range 2.0-20.0mm). There was a significant difference in the average distortion observed in different theaters (P.001). There was no association between distortion and patient demographics or fluoroscopic time (all, P.05).Fluoroscopic distortion is unpredictable and can cause a substantial amount of error when comparing limb lengths during DA THA. This is a critical finding as this amount of inaccuracy could lead to unintended implant positioning and limb-length discrepancies if unaccounted for.
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- 2021
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148. Comparison of Complications after Revision Ulnar Nerve Surgery Performed under Regional versus General Anesthesia
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Dittman, Lauren E., additional, Strother, Courtney R. Carlson, additional, and Rhee, Peter C., additional
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- 2022
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149. Nonlinear estimation of longitudinal tire slip under several driving conditions.
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Christopher R. Carlson and J. Christian Gerdes
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- 2003
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150. A Frequency Ratio Account of Temporal Atomism
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Carey R. Carlson
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Physics ,Atomism (social) ,Quantum mechanics ,Frequency ratio ,General Medicine - Abstract
This article examines the time duration of individual occasions in the light of the discovery that temporal succession produces frequency ratios. The frequency ratios are used to define energy ratios and the quantum. The manifold and the common particles are constructed graphically using the arrows of time, with the mass-ratios of the particles derivable from the graphs. The formal reduction of physics to time compels us to adopt Whitehead’s conception of the physical universe as occasions of experience engaged in temporal/causal succession. The relative duration of the constituent occasions of the particles are determined by their graphs. In the final section, a refined account of the mind-brain interaction sequence confirms the duration of a human occasion as one tenth of a second.
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- 2021
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