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Metcalf CD, Phillips C, Forrester A, Glodowski J, Simpson K, Everitt C, Darekar A, King L, Warwick D, Dickinson AS. Quantifying Soft Tissue Artefacts and Imaging Variability in Motion Capture of the Fingers. Ann Biomed Eng 2020; 48:1551-1561. [PMID: 32076882 PMCID: PMC7154021 DOI: 10.1007/s10439-020-02476-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/05/2020] [Indexed: 10/29/2022]
Abstract
This study assessed the accuracy of marker-based kinematic analysis of the fingers, considering soft tissue artefacts (STA) and marker imaging uncertainty. We collected CT images of the hand from healthy volunteers with fingers in full extension, mid- and full-flexion, including motion capture markers. Bones and markers were segmented and meshed. The bone meshes for each volunteer's scans were aligned using the proximal phalanx to study the proximal interphalangeal joint (PIP), and using the middle phalanx to study the distal interphalangeal joint (DIP). The angle changes between positions were extracted. The HAWK protocol was used to calculate PIP and DIP joint flexion angles in each position based on the marker centroids. Finally the marker locations were 'corrected' relative to the underlying bones, and the flexion angles recalculated. Static and dynamic marker imaging uncertainty was evaluated using a wand. A strong positive correlation was observed between marker- and CT-based joint angle changes with 0.980 and 0.892 regression slopes for PIP and DIP, respectively, and Root Mean Squared Errors below 4°. Notably for the PIP joint, correlation was worsened by STA correction. The 95% imaging uncertainty interval was < ± 1° for joints, and < ± 0.25 mm for segment lengths. In summary, the HAWK marker set's accuracy was characterised for finger joint flexion angle changes in a small group of healthy individuals and static poses, and was found to benefit from skin movements during flexion.
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Frost AS, McMahon ME, Simpson K, Patzkowsky KE, Wu HY, Wang KC. Vaginal Cuff Closure: Tips for Ipsilateral Port Suturing. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wu HY, Kaczmarski K, Portnoy E, Wang KC, Simpson K, Patzkowsky KE. 1493 Preoperative Uterine Artery Embolization Prior to the Surgical Management of Fibroids: An Institutional Case Series. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wu HY, Yen TT, Singh B, Lau BD, Chaves KK, Maher J, Patzkowsky KE, Simpson K, Wang KC. Cell Salvage System use in Minimally Invasive Myomectomy. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Brailovsky Y, Kunchakarra S, Porcaro K, Masic D, Mancl E, Doukas D, Bechara C, Lopez JJ, Simpson K, Mathew V, Fareed J, Darki A. PULMONARY EMBOLISM RESPONSE TEAM IMPLEMENTATION IMPROVES AWARENESS AND EDUCATION AMONG THE HOUSE STAFF. J Am Coll Cardiol 2019. [DOI: 10.1016/s0735-1097(19)33656-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Placha K, Tuley RS, Salvo M, Casalegno V, Simpson K. Solid-Liquid Interdiffusion (SLID) Bonding of p-Type Skutterudite Thermoelectric Material Using Al-Ni Interlayers. MATERIALS 2018; 11:ma11122483. [PMID: 30563283 PMCID: PMC6317193 DOI: 10.3390/ma11122483] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 11/22/2018] [Accepted: 12/04/2018] [Indexed: 11/16/2022]
Abstract
Over the past few years, significant progress towards implementation of environmentally sustainable and cost-effective thermoelectric power generation has been made. However, the reliability and high-temperature stability challenges of incorporating thermoelectric materials into modules still represent a key bottleneck. Here, we demonstrate an implementation of the Solid-Liquid Interdiffusion technique used for bonding Mmy(Fe,Co)4Sb12 p-type thermoelectric material to metallic interconnect using a novel aluminium–nickel multi-layered system. It was found that the diffusion reaction-controlled process leads to the formation of two distinct intermetallic compounds (IMCs), Al3Ni and Al3Ni2, with a theoretical melting point higher than the initial bonding temperature. Different manufacturing parameters have also been investigated and their influence on electrical, mechanical and microstructural features of bonded components are reported here. The resulting electrical contact resistances and apparent shear strengths for components with residual aluminium were measured to be (2.8 ± 0.4) × 10−5 Ω∙cm2 and 5.1 ± 0.5 MPa and with aluminium completely transformed into Al3Ni and Al3Ni2 IMCs were (4.8 ± 0.3) × 10−5 Ω∙cm2 and 4.5 ± 0.5 MPa respectively. The behaviour and microstructural changes in the joining material have been evaluated through isothermal annealing at hot-leg working temperature to investigate the stability and evolution of the contact.
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Endicott S, Braden J, Simpson K, Elmezzi K, Lockrow E. Repair of Transmural Isthmocele after Intragestational Methotrexate Therapy for Cesarean Scar Ectopic Pregnancy. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dive C, Brady G, Rothwell D, Frese K, Simpson K, Pierce J, Kilgour E, Blackhall F. MS32.03 Liquid Biopsies for Drug Development in SCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Simpson K, Chapman P, Klag A. Long-term outcome of primary immune-mediated thrombocytopenia in dogs. J Small Anim Pract 2018; 59:674-680. [DOI: 10.1111/jsap.12912] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 11/28/2022]
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Simpson K, Fuentes P, Quiroz-Iturra LF, Flores-Ortiz C, Contreras R, Handford M, Stange C. Unraveling the induction of phytoene synthase 2 expression by salt stress and abscisic acid in Daucus carota. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:4113-4126. [PMID: 29860511 PMCID: PMC6054239 DOI: 10.1093/jxb/ery207] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/21/2018] [Indexed: 05/09/2023]
Abstract
Phytoene synthase (PSY) is the first committed enzyme of the carotenoid biosynthesis pathway and the most important point of regulation. Carotenoids are precursors of abscisic acid (ABA), which mediates abiotic stress tolerance responses in plants. ABA activates the synthesis of its own precursors through induction of PSY expression. Carrot, a species that accumulates very high amounts of carotenoids in its reserve root, has two PSY paralog genes that are expressed differentially in the root. Here, we determined that DcPSY2 expression is induced by salt stress and ABA. A DcPSY2 promoter fragment was obtained and characterized. Bioinformatic analysis showed the presence of three ABA responsive elements (ABREs). Through overexpressing pPSY2:GFP in Nicotiana tabacum we determined that all three ABREs are necessary for the ABA response. In the carrot transcriptome, we identified three ABRE binding protein (DcAREB) transcription factor candidates that localized in the nucleus, but only one, DcAREB3, was induced under ABA treatment in carrot roots. We found that AREB transcription factors bind to the carrot DcPSY2 promoter and transactivate the expression of reporter genes. We conclude that DcPSY2 is involved in ABA-mediated salt stress tolerance in carrot through the binding of AREB transcription factors to its promoter.
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Vijayakumaran R, Tan K, Caramia F, Gamell C, Madhamshettiwar P, Nikolic I, Simpson K, Haupt S, Haupt Y. PO-126 Exploration of novel regulators of mutant P53. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Irvine L, Travers M, Simpson K, Lowe G, Courtney JM. Influence of Haemodialysis Membranes on the Release of Granulocyte Elastase. Int J Artif Organs 2018. [DOI: 10.1177/039139888901200803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The advantages of multiparameter assessment in the evaluation of the blood compatibility of biomaterials underline the importance of investigating possible relevant parameters. In this respect, a study has been made of granulocyte elastase to establish the influence of haemodialysis membranes on the release of this serine proteinase. Plasma levels of granulocyte elastase were determined as a complex with its natural inhibiter α1-proteinase. This elastase - α1 proteinase (E- α1 Pi)inhibitor complex was measured by a highly sensitive enzyme-linked immunoassay. The membranes evaluated were Cuprophan (15-11, Travenol) and polysulphone (F40, Fresenius). Samples were taken from patients undergoing maintenance haemodialysis, before the start of dialysis, after 15 and 90 minutes and again at the end of dialysis (4 h). This investigation clearly demonstrates the different response of the dialysers, and on correcting for surface area, the end-dialysis level of E-α1 Pi remained significantly greater for the Cuprophan membrane. The results support the view that the release of granulocyte elastase is a relevant parameter for inclusion in membrane compatibility assessment.
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Godown J, Pruitt E, Vo J, Dodd D, Lytrivi I, Boyle G, Sutcliffe D, Kleinmahon J, Shih R, Urschel S, Das B, Carlo W, Zuckerman W, West S, McCulloch M, Zinn M, Simpson K, Kindel S, Szmuszkovicz J, Chrisant M, Auerbach S, Carboni M, Hsu D. Practice Variation in the Diagnosis of Acute Rejection Among Pediatric Heart Transplant Centers: An Analysis of the Pediatric Heart Transplant Study (PHTS) Database. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kawak A, Gaylor J, Simpson K, Kirkland M. An in Vitro Technique to assess Oxygenator Potential for Respiratory Failure Therapies. Int J Artif Organs 2018. [DOI: 10.1177/039139889101400406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Reed MJ, Grubb NJ, Lang CC, Gray AJ, Simpson K, Macraild AJ, Weir CJ. P422Diagnostic yield of an ambulatory patch monitor in patients with unexplained syncope after initial evaluation in the Emergency Department: The PATCH-ED study. Europace 2018. [DOI: 10.1093/europace/euy015.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Reed MJ, Brutin H, Grubb NJ, Lang CC, Gray AJ, Simpson K, Macraild AJ, Weir CJ. P420Brain Natriuretic Peptide (BNP) and high-sensitivity troponin I at 3 hours post Emergency Department (ED) attendance predicts all significant arrhythmias at 3 months in unexplained ED syncope patients. Europace 2018. [DOI: 10.1093/europace/euy015.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Simpson K, Keen D, Adams D, Alston-Knox C, Roberts J. Participation of children on the autism spectrum in home, school, and community. Child Care Health Dev 2018; 44:99-107. [PMID: 28664633 DOI: 10.1111/cch.12483] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 06/05/2017] [Accepted: 06/08/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Children on the autism spectrum participate less frequently, and in a narrower range of activities, than their nonautistic peers, but little is known about exact participation patterns across contexts or how this is perceived by caregivers. This study aimed to document patterns of participation and caregiver views with regard to frequency and intensity of activities. METHOD Caregivers of children on the spectrum aged 5 (n = 90) and 9-10 years (n = 128) completed the Participation and Environment Measure for Children and Youth for home, school, and community. Caregivers reported on frequency of child's participation, level of involvement, and caregivers' desire for change in participation patterns. RESULTS Item-level analyses revealed similar patterns of participation across home, school, and community for both cohorts with some small age-appropriate differences. Caregivers generally desired increased diversity, frequency, and involvement in activities but a decreased use of electronics (computers, games, TV, and DVDs). CONCLUSION The possibility of autism-specific participation patterns could inform future interventions aimed at enhancing social inclusion. This warrants further investigation through multiinformant designs that seek the perspectives of the child and caregivers.
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Hodgson X, Holgate H, Shannon H, Williams G, Smith A, Ovey H, Jefferson H, Spiteri A, Grenside J, Scott M, Guruchandaran R, Simpson K, Geronta I, Tillmann R, Rogers J. The psychometric analyses of the Enfield Determination of Need tool (EDoN), to determine its reliability, validity and utility. Physiotherapy 2017. [DOI: 10.1016/j.physio.2017.11.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Madueke-Laveaux O, Advincula A, Landau-Cahana R, Walters R, Grimes C, Kim J, Simpson K, Truong M, Young C, Ryntz T. A Comparison of Carbon Dioxide (CO 2 ) Absorption Rates in Gynecologic Laparoscopy with a Valveless Insufflation System Versus Standard Insufflation System at Intra-Abdominal Pressures of 10 mmHg and 15 mmHg – A Randomized Controlled Trial. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Danson S, Woll P, Edwards J, Blyth K, Fisher P, Roman J, Simpson K, Spavin R, Learmonth K, Conner J. Oncolytic herpesvirus therapy for mesothelioma: A phase I/IIa trial of intrapleural administration of HSV1716 (NCT01721018). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Woodward S, Ackermann M, Ahirwar SK, Burroughs L, Garrett MR, Ritchie J, Shine J, Tyril B, Simpson K, Woodward P. Straightforward Synthesis of 2- and 2,8-Substituted Tetracenes. Chemistry 2017; 23:7819-7824. [PMID: 28417523 DOI: 10.1002/chem.201701170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Indexed: 01/19/2023]
Abstract
A simple regiospecific route to otherwise problematic substituted tetracenes is described. The diverse cores (E)-1,2-Ar1 CH2 (HOCH2 )C=C(CH2 OH)I (Ar1 =Ph, 4-MePh, 4-MeOPh, 4-FPh) and (E)-1,2-I(HOCH2 )C=C(CH2 OH)I, accessed from ultra-low cost HOCH2 C≡CCH2 OH at multi-gram scales, allow the synthesis of diol libraries (E)-1,2-Ar1 CH2 (HOCH2 )C=C(CH2 OH)CH2 Ar2 (Ar2 =Ph, 4-MePh, 4-iPrPh, 4-MeOPh, 4-FPh, 4-BrPh, 4-biphenyl, 4-styryl; 14 examples) by efficient Negishi coupling. Copper-catalysed aerobic oxidation cleanly provides dialdehydes (E)-1,2-Ar1 CH2 (CHO)C=C(CHO)CH2 Ar2 , which in many cases undergo titanium(IV) chloride-induced double Bradsher closure, providing a convenient method for the synthesis of regiochemically and analytically pure tetracenes (12 examples). The sequence is typically chromatography-free, scalable, efficient and technically simple to carry out.
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Grimes C, Patankar S, Ryntz T, Simpson K, Truong M, Young C, Madueke Laveaux S, Philip N, Walters R, Advincula A, Pitter M, Kim J. 13: Evaluating ureteral patency in the post-indigo carmine era: A randomized controlled trial. Am J Obstet Gynecol 2017. [DOI: 10.1016/j.ajog.2016.12.165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tsay I, Soh S, Bassett R, Marley P, Simpson K, Tan R, Abhayaratna W, O’ Connor S. How Does the Time of Presentation of Chest Pain Affect Patient Length of Stay? An Analysis of a Modern Chest Pain Unit. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Doost A, Wang L, Harding E, Robbie Y, Simpson K, Divorty L, Tan R. Systematic SmartPhone 12-Lead ECG Transmission for Cath Lab Activation for STEMI. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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