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Carver A, Uzan J, Baker C, Nahum A. PD-0450: A more exact approach to uncertainties in radiobiological parameter estimation. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40446-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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77
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Baker C, Carver A, Nahum A. PO-0910: Local control prediction for NSCLC using a common LQbased TCP model for both SABR and 3D-CRT fractionation. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40902-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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78
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Baker C, Dowson N, Thomas P, Rose S. Modelling of FDG metabolism in liver voxels. J Theor Biol 2015; 365:390-402. [PMID: 25451530 DOI: 10.1016/j.jtbi.2014.10.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 10/21/2014] [Accepted: 10/23/2014] [Indexed: 11/19/2022]
Abstract
Kinetic analysis is a tool used to glean additional information from positron emission tomography (PET) data by exploiting the dynamics of tissue metabolism. The standard irreversible and reversible two compartment models used in kinetic analysis were initially developed to analyse brain PET data. The application of kinetic analysis to PET of the liver presents the opportunity to move beyond the generic standard models and develop physiologically informed pharmacokinetic models that incorporate structural and functional features in particular to the liver. In this paper, we develop a new compartment model, called the tubes model, which is informed by the liver׳s sinusoidal architecture, high fractional blood volume, high perfusion rate, and large hepatocyte surface area facing the space of Disse. The tubes model distributes tracer between the blood and intracellular compartments in more physiologically faithful proportions than the standard model, producing parametric images with improved contrast between healthy and neoplastic tissue.
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Babu B, Dankers H, Newberry E, Baker C, Schubert T, Knox G, Paret M. First Report of Rose rosette virus Associated with Rose Rosette Disease Infecting Knockout Roses in Florida. PLANT DISEASE 2014; 98:1449. [PMID: 30703988 DOI: 10.1094/pdis-05-14-0501-pdn] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Roses are one of the most popular flowering shrubs in the United States, with a total wholesale value of US$194 million. Among the major states, Florida is the fourth largest producer of roses with a total value exceeding US$20 million (4). In Florida, the roses have become especially popular in recent years with the introduction of Knock Out and other shrub roses. Virus-like symptoms including witches'-broom, excessive thorns, abnormal red discoloration of shoots and foliages, distorted leaves, and deformed buds and flowers were initially observed on Knock Out roses in a commercial nursery in Quincy, FL, in November 2013. Fifteen plants out of ~250,000 plants showed these characteristic symptoms. Total RNA extracts (RNeasy Plant Mini Kit, Qiagen, Valencia, CA) from eight symptomatic and two non-symptomatic rose samples were subjected to reverse-transcription (RT) assays using SuperScript III Reverse transcriptase (Invitrogen, Life Technologies, NY) and random hexamer primers. The cDNA synthesized was then subjected to PCR assay using Platinum Taq DNA polymerase (Invitrogen, Life Technologies) and using Rose rosette virus (RRV) specific primers RRV-F and RRV-R (1), targeting the core region of the RNA1 genome of the virus. The RT-PCR assays using the specific primers produced amplicons of 375 bp, only in the symptomatic leaf samples. The obtained amplicons were PCR purified and sequenced directly (GenBank Accession Nos. KF990370 to KF990377). BLAST analysis of these sequences revealed a higher identity of 99% with the RRV (HQ871942) in the NCBI database. Pairwise comparison of the eight RRV sequences exhibited 99 to 100% identity among themselves. These results revealed the association of RRV with the symptomatic rose plants. Eight symptomatic and two non-symptomatic rose plant samples were tested for RRV using blot hybridization assay, utilizing a digoxigenin-labeled DNA probe of 511 bp, targeting the RNA1 genome of the RRV. All eight symptomatic rose plants showed a positive reaction to the RRV-specific probes, confirming the presence of RRV in the samples, while the non-symptomatic and the buffer control did not produce any reactions. Even though the virus is reported to spread by an eriophyid mite Phyllocoptes fructiphilus, thorough examination of the infected samples showed absence of the vector. The samples were also tested using RT-PCR for the presence of Rose cryptic virus (RCV) and Blackberry chlorotic ringspot virus (BCRV) using specific primers (2,3). The samples tested negative for the RCV and BCRV. This is the first report of occurrence of RRV on rose in Florida. Considering the economic importance of the rose plants and the highly destructive nature of RRV, this report underscores the need for immediate effective quarantine and management of the virus for protecting the economically important rose industry in Florida. References: (1) A. G. Laney et al. J. Gen. Virol. 92:1727, 2011. (2) S. Sabanadzovic and N. Abou Ghanem-Sabanadzovic. J. Plant Pathol. 90:287, 2008. (3) I. E. Tzanetakis et al. Plant Pathol. 55:568, 2006. (4) USDA. 2007 Census of Agriculture 3:25, Washington, DC, 2010.
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80
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McGrath NM, Baker C, Simkins A. Increased detection of gestational diabetes mellitus by using HbA1c screening in the first antenatal blood tests. Diabet Med 2014; 31:1277. [PMID: 24909056 DOI: 10.1111/dme.12519] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/10/2014] [Accepted: 06/03/2014] [Indexed: 10/25/2022]
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81
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Selvaraj J, Uzan J, Baker C, Nahum A. 4D radiobiological modelling of the interplay effect in conventionally and hypofractionated lung tumour IMRT. Br J Radiol 2014; 88:20140372. [PMID: 25251400 DOI: 10.1259/bjr.20140372] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE To study the impact of the interplay between respiration-induced tumour motion and multileaf collimator leaf movements in intensity-modulated radiotherapy (IMRT) as a function of number of fractions, dose rate on population mean tumour control probability ([Formula: see text]) using an in-house developed dose model. METHODS Delivered dose was accumulated in a voxel-by-voxel basis inclusive of tumour motion over the course of treatment. The effect of interplay on dose and [Formula: see text] was studied for conventionally and hypofractionated treatments using digital imaging and communications in medicine data sets. Moreover, the effect of dose rate on interplay was also studied for single-fraction treatments. Simulations were repeated several times to obtain [Formula: see text] for each plan. RESULTS The average variation observed in mean dose to the target volumes were -0.76% ± 0.36% for the 20-fraction treatment and -0.26% ± 0.68% and -1.05% ± 0.98% for the three- and single-fraction treatments, respectively. For the 20-fraction treatment, the drop in [Formula: see text] was -1.05% ± 0.39%, whereas for the three- and single-fraction treatments, it was -2.80% ± 1.68% and -4.00% ± 2.84%, respectively. By reducing the dose rate from 600 to 300 MU min(-1) for the single-fraction treatments, the drop in [Formula: see text] was reduced by approximately 1.5%. CONCLUSION The effect of interplay on [Formula: see text] is negligible for conventionally fractionated treatments, whereas considerable drop in [Formula: see text] is observed for the three- and single-fraction treatments. Reduced dose rate could be used in hypofractionated treatments to reduce the interplay effect. ADVANCES IN KNOWLEDGE A novel in silico dose model is presented to determine the impact of interplay effect in IMRT treatments on [Formula: see text].
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Funaro M, Mielnik A, Baker C, Schlegel P, Paduch D. Abnormal cleavage of filamin a and cytoplasmic retention of androgen receptor in testicular biopsies in men with klinefelter syndrome (KS): an explanation for androgen resistance in KS. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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83
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Lee SH, Kravitz D, Baker C. Fine-grained representation of visual object information retrieved from long-term memory. J Vis 2014. [DOI: 10.1167/14.10.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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84
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Yoonessi A, Buckthought A, Baker C. Depth perception from motion parallax: dependence on texture spatial frequency and orientation. J Vis 2014. [DOI: 10.1167/14.10.737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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85
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Chan A, Baker C. Revisiting touch observation in anterior parietal cortex: vicarious activation in somatosensory cortex? J Vis 2014. [DOI: 10.1167/14.10.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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86
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Arizpe J, Kravitz D, Bilger E, Baker C. Increasing extent of category selectivity with increasing power. J Vis 2014. [DOI: 10.1167/14.10.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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87
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Harel A, Kravitz D, Baker C. Beyond perceptual expertise: Revisiting the neural substrates of expert object recognition. J Vis 2014. [DOI: 10.1167/14.10.820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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88
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Baker C, Lu Y, Song J, Bao X. Incoherent optical frequency domain reflectometry based on a Kerr phase-interrogator. OPTICS EXPRESS 2014; 22:15370-15375. [PMID: 24977797 DOI: 10.1364/oe.22.015370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a novel approach for incoherent optical frequency-domain reflectometry based on a frequency-swept sinusoidal optical signal and a Kerr phase-interrogator. The novel approach eliminates dependence on the laser coherence-length allowing for long-range operation. Long-range detection of reflection points as far as 151 km at a spatial-resolution of 11.2 cm is experimentally demonstrated.
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89
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McNamara R, Butler A, Baker C, Mullen J, Lenehan B, Grimes S, O'Donoghue H, Evans P, Liston M, Cummins F, Condon F. Use of lean principals to improve flow of patients with fractured neck of femur--the HOPE study. IRISH MEDICAL JOURNAL 2014; 107:70-72. [PMID: 24757887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We describe the implementation of a care pathway for patients with fractured neck of femur (NOF) using Lean and Six Sigma principles. After introduction of the Lean pathway, 32 patients out a total of 86 (37%) with fractured NOF were admitted to the Trauma Ward within 4 hours of presentation to the hospital; prior to implementation this was 16 patients out of a total of 59 (27%). Post-Lean an earlier mean theatre start time of 8.40am was achieved, resulting in a 38 minute increase in daily theatre time. An additional 52 patients (12%) received surgery within 24 hours of admission, resulting in 1 night length of stay reduction. Lean methodology proved an effective method to guide change resulting in an improved journey for the patient and significant workflow gains.
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Wang L, Uzan J, Baker C, Lin M, Hayes S, Meyer J, Ma C, Nahum A. OC-0259: Towards individualized dose prescription for hypofractionation in liver cancer radiotherapy. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30364-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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91
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Karia D, Uzan J, Baker C, Nahum A. EP-1628: Applying 'macroscopic' radiobiology to radiotherapy treatment escalation and individualization. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31746-1] [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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92
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Baker C, Willett A, Uzan J, Jain P, Eswar C, Littler J. OC-0387: Improving tumour control in NSCLC through functionally-optimised and dose-escalated VMAT. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30492-8] [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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93
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Bauer M, Baker C, Barham R, Hensel J, Kling C, L T, Koch C, Sander T. Magnetoencephalography of Deep Lying Auditory Sources Using Acoustical Devices for Infra- and Ultrasound Stimulation. BIOMED ENG-BIOMED TE 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-E/bmt-2013-4135/bmt-2013-4135.xml. [PMID: 24042764 DOI: 10.1515/bmt-2013-4135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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94
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Garcia-Doval I, Rustenbach S, Stern R, Dam T, Cohen A, Baker C, Spuls P, Naldi L. Systemic psoriasis therapy shows high between-country variation: a sign of unwarranted variation? Cross-sectional analysis of baseline data from the PSONET registries. Br J Dermatol 2013; 169:710-4. [DOI: 10.1111/bjd.12344] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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95
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Robertson C, Kravitz D, Jan F, Baron-Cohen S, Baker C. Atypical Lateral Interactions in Autism. J Vis 2013. [DOI: 10.1167/13.9.836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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96
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Baker C, Li G, Wang Z, Yao Z, Yuan N, Talebi V, Tan J, Wang Y, Zhou Y. Second-order neuronal responses to contrast modulation stimuli in primate visual cortex. J Vis 2013. [DOI: 10.1167/13.9.41] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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97
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Arizpe J, Shrotri M, Baker C, Walsh V. Using Melatonin to Study the Role of Sleep Architecture in Visual Perceptual Learning. J Vis 2013. [DOI: 10.1167/13.9.911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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98
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Chan A, Bilger E, Griffin S, Elkins V, Weeks S, Hussey-Anderson L, Hughes K, Monson B, Shaffer M, Wolde M, Gilmer H, Pasquina P, Tsao J, Baker C. Impact of Visual Mirror Therapy on Phantom Limb Pain Following Amputation: Visual Responsiveness in Somatomotor Cortex. J Vis 2013. [DOI: 10.1167/13.9.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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99
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100
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Selvaraj J, Uzan J, Baker C, Nahum A. PO-0842: 4D Radiobiological modelling of the interplay effect in lung tumour IMRT. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33148-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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