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Herzog M, Duangudom V, Francis G. Spatial layout determines metacontrast masking. J Vis 2010. [DOI: 10.1167/7.9.1015] [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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Cho YS, Francis G. Backward masking with sparse masks: Models and experiments. J Vis 2010. [DOI: 10.1167/3.9.742] [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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Francis G, Schoonveld W. Interactions of afterimages for orientation and color: New results force model revisions. J Vis 2010. [DOI: 10.1167/3.9.599] [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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Francis G. Developing a new quantitative account of backward masking. J Vis 2010. [DOI: 10.1167/2.7.212] [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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Edouard G, Dominique B, Moussiliou P, Francis G, Khaled B, Serge B. E-Learning and North-South collaboration: the experience of two public health schools in France and Benin. Pan Afr Med J 2010. [DOI: 10.4314/pamj.v3i1.52443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Austin R, Thompson B, Coory M, Walpole E, Francis G, Fritschi L. Histopathology reporting of breast cancer in Queensland: the impact on the quality of reporting as a result of the introduction of recommendations. Pathology 2009; 41:361-5. [PMID: 19404849 DOI: 10.1080/00313020902884469] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIMS Recommendations for the pathology reporting of breast cancer were released in Australia to ensure detailed communication of important prognostic features and good patient management. An audit of the reporting of invasive breast cancer in Queensland was conducted to determine how well these guidelines were utilised in 2004. METHODS A random sample of reports was audited for inclusion of recommended criteria. The proportion of reports meeting each of the criteria was determined and compared across whether the report was in a synoptic report template or in a free text format. Comparison was made with published data from prior to the release of the recommendations. RESULTS Of the 419 reports in the sample, at least 90% of reports included lesion size, histological type, histological grade, lymph node involvement, margins of excision, lymphovascular invasion, and changes in adjacent breast tissue individually, and 74% included all seven of these essential criteria. Synoptic reports accounted for 76% of the sample and were significantly more likely to have documented grade (p < 0.001), quadrant (p = 0.003), calcification (p < 0.001), lymphovascular invasion (p < 0.001), changes in non-neoplastic breast (p < 0.001) and ductal carcinoma in situ criteria (p < 0.001) compared with free text report format. The most notable improvements since the implementation of the recommendations were in documentation of adjacent breast tissue (92% versus 49%) and lymphovascular invasion (97% versus 54%). CONCLUSION Breast cancer reporting in Queensland has improved since the implementation of the recommendations, however further improvements would likely be seen if there is more widespread utilisation of a synoptic report format.
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Dongmeza E, Steinbronn S, Francis G, Focken U, Becker K. Investigations on the nutrient and antinutrient content of typical plants used as fish feed in small scale aquaculture in the mountainous regions of Northern Vietnam. Anim Feed Sci Technol 2009. [DOI: 10.1016/j.anifeedsci.2008.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Thompson B, Austin R, Coory M, Aitken JF, Walpole E, Francis G, Fritschi L. Completeness of histopathology reporting of melanoma in a high-incidence geographical region. Dermatology 2008; 218:7-14. [PMID: 18832807 DOI: 10.1159/000161116] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Accepted: 05/29/2008] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Appropriate histopathology reporting helps to ensure effective therapy and prognosis. OBJECTIVE To examine compliance with clinical practice guidelines for histopathology reports of melanomas. METHODS A sample of melanoma histopathology reports in Queensland was audited for inclusion of recommended information. The quality of documentation was constructed and multivariate analysis used to determine factors affecting the quality of reporting practices. RESULTS Documentation of the most important features of melanoma was high: clear diagnosis (99.8%; 95% CI 98.6-100), thickness (99.8%; 95% CI 98.6-100), comment on adequacy of excision (87.9%; 95% CI 84.9-91.0) and measurement of margins (91.9%; 95% CI 88.8-91.4). Overall reporting of ulceration and regression was of lesser completeness (83.0 and 77.8%, respectively) and these features were more likely to be reported by high-volume laboratories (p < 0.001 and p = 0.037, respectively). This trend was not apparent for other features. Fewer than 50% of reports documented mitotic rate per square millimetre, predominant cell type, microsatellites, growth phase and desmoplasia. CONCLUSION Awareness of current reporting practices and identification of areas in which insufficiencies exist enable the revision of systems and potential improvements to the transfer of information to treating clinicians.
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Khalil B, Stadtlander T, Francis G, Focken U, Becker K, Levavi-Sivan B, Kerem Z, Dweik H, Qutob M, Abu-Lafi S. Saponin fractions from Trigonella foenum-graecum in the diet affect growth and expression of GH and IGF-1 encoding genes in tilapia (Oreochromis niloticus). Comp Biochem Physiol A Mol Integr Physiol 2008. [DOI: 10.1016/j.cbpa.2008.05.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kinnison DE, Gille J, Barnett J, Randall C, Harvey VL, Lambert A, Khosravi R, Alexander MJ, Bernath PF, Boone CD, Cavanaugh C, Coffey M, Craig C, Dean VC, Eden T, Ellis D, Fahey DW, Francis G, Halvorson C, Hannigan J, Hartsough C, Hepplewhite C, Krinsky C, Lee H, Mankin B, Marcy TP, Massie S, Nardi B, Packman D, Popp PJ, Santee ML, Yudin V, Walker KA. Global observations of HNO3from the High Resolution Dynamics Limb Sounder (HIRDLS): First results. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd008814] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Helou MA, Massey G, Francis G, Godder K, Laver J. Vitamin D insufficiency in the pediatric oncology population: defining who is at risk and the need for standardized screening. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.10023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Alexander MJ, Gille J, Cavanaugh C, Coffey M, Craig C, Eden T, Francis G, Halvorson C, Hannigan J, Khosravi R, Kinnison D, Lee H, Massie S, Nardi B, Barnett J, Hepplewhite C, Lambert A, Dean V. Global estimates of gravity wave momentum flux from High Resolution Dynamics Limb Sounder observations. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd008807] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Oger J, Francis G, Chang P. Prospective assessment of changing from placebo to IFN beta-1a in relapsing MS: The PRISMS study. J Neurol Sci 2005; 237:45-52. [PMID: 16026803 DOI: 10.1016/j.jns.2005.05.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2004] [Revised: 04/01/2005] [Accepted: 05/23/2005] [Indexed: 11/21/2022]
Abstract
The efficacy of interferon (IFN) beta has been shown in several placebo-controlled, parallel-group studies in relapsing-remitting multiple sclerosis (RRMS). PRISMS, the largest such study to date, clearly demonstrated the efficacy of IFN beta-1a on all outcome measures over 2 years during the placebo-controlled, parallel-group phase. However, this study's placebo-crossover design also provided us with a unique opportunity to conduct a prospective within-group assessment, eliminating the impact of inter-patient variability. At the start of year 3, patients receiving placebo during years 1-2 were re-randomized in a dose-blinded fashion to receive IFN beta-1a, 22 or 44 mcg subcutaneously three times weekly, during years 3 and 4. Clinic visits occurred 3-6 monthly and T2 MRI scans were obtained after 1 and 2 years on therapy. Comparison of the mean relapse count per patient over 2 years (the primary outcome measure) during time on placebo (years 1 and 2) with that during active treatment (years 3 and 4) revealed a decrease from 2.6 to 1.2 in both dose groups (54% relative reduction; p<0.001). Disability progression, T2 MRI lesion activity and accumulation of T2 lesion burden were also significantly improved with therapy (p<0.01). No new safety issues were noted. These data provide further support for IFN beta-1a's efficacy in RRMS. The ability to detect significant treatment effects with reduced patient numbers in this type of before/after analysis, may be due to the reduction in inter-patient variability.
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Shive J, Francis G. Using models of visual search to design optimal interfaces. J Vis 2005. [DOI: 10.1167/5.8.955] [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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Cho YS, Francis G. The highs and lows of temporal integration in backward masking. J Vis 2005. [DOI: 10.1167/5.8.763] [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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Graber J, Zhan M, Ford D, Kursch F, Francis G, Bever C, Panitch H, Calabresi PA, Dhib-Jalbut S. Interferon-beta-1a induces increases in vascular cell adhesion molecule: implications for its mode of action in multiple sclerosis. J Neuroimmunol 2005; 161:169-76. [PMID: 15748956 DOI: 10.1016/j.jneuroim.2004.11.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2004] [Revised: 11/24/2004] [Accepted: 11/24/2004] [Indexed: 10/25/2022]
Abstract
We investigated soluble vascular cell adhesion molecule-1 (sVCAM) levels and MRI lesions over 24 weeks in 15 Relapsing Remitting MS (RRMS) patients randomized prospectively to receive once-weekly (qw) IFN-beta-1a 30 mug intramuscularly (IM) (Group I, 8 patients) or three-times-weekly (tiw) IFN-beta-1a 44 mug subcutaneously (SC) (Group II, 7 patients). Both groups demonstrated a significant increase in sVCAM during treatment when compared to pre-treatment levels. Patients on IFN-beta-1a 44 mug SC tiw had a significant (p<0.0001) mean increase in sVCAM of 321.9 ng/ml which was significantly greater (p<0.0001) than with IFN-beta-1a 30 mug IM qw (68.6 ng/ml). There was a negative correlation between combined unique (CU) MRI lesions and sVCAM levels within the IFN-beta-1a 44 mug SC tiw group (slope=-0.00106, p=0.009). We postulate that the mode of action of IFN-beta therapy in MS may involve the induction of an increase in sVCAM. sVCAM could bind VLA-4 on T-cells and intercept their adhesion to the blood brain barrier (BBB). This mechanism is consistent with the observed clinical effect of IFN-beta in reducing MRI contrast enhancing lesions.
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Ericson JM, Francis G, Shive JM. The spatial spread of filling-in for afterimages produced from orthogonal pairs of stimuli. J Vis 2004. [DOI: 10.1167/4.8.482] [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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69
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Francis G, Schoonveld W. The perceived color of afterimages produced from orthogonal pairs of stimuli. J Vis 2004. [DOI: 10.1167/4.8.483] [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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Pizlo Z, Francis G, Li Y. Evidence of two mechanisms for binocular depth perception. J Vis 2004. [DOI: 10.1167/4.8.460] [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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Wede JL, Francis G. The time course of afterimages dependent on orientation and color. J Vis 2004. [DOI: 10.1167/4.8.481] [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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Seok Y, Francis G. Evidence for integration in Type A and B backward masking. J Vis 2004. [DOI: 10.1167/4.8.494] [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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McNair HA, Francis G, Balyckyi J. Clinical implementation of dynamic intensity-modulated radiotherapy: radiographers' perspectives. Br J Radiol 2004; 77:493-8. [PMID: 15151970 DOI: 10.1259/bjr/82394256] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The ability of intensity-modulated radiotherapy (IMRT) to sculpt the dose distribution closely around the tumour volume has the potential to have a major impact on radiotherapy clinical practice. However, dynamic IMRT treatment delivery differs from that of conventional treatment because of the constantly moving multileaf collimators (MLCs) and higher monitor units (MUs) required. The implementation of new technology can be affected by the users response. Radiographers' attitudes regarding technology and their perceptions of the clinical implementation of IMRT were explored using a qualitative study based on semi-structured interviews. 16 radiographers were interviewed and data was analysed using a framework analysis to identify themes and categories. The majority of radiographers (12/16) demonstrated positive attitudes regarding technology. The introduction of IMRT was seen to be stimulating and motivating. Negative aspects were associated with increased stress from learning new skills and the additional pressure of the increased workload. Although there were contradictory views regarding the effect of the increased use of technology on the patient-radiographer relationship, technological skills and patient care were not found to be mutually exclusive. Radiographers' perceptions regarding the clinical implementation of IMRT appeared to be influenced by their mainly positive attitudes regarding technology. With the current problems of recruitment and retention of radiographers, full exploitation of modern technology could be used to improve job satisfaction. However, careful integration is required to balance training needs with service demands.
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Bilous M, Morey A, Armes J, Cummings M, Francis G. CISH or FISH? The interlaboratory reproducibility of CISH testing for HER2 and correlation with IHC and FISH results. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)90763-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Emmons LK, Deeter MN, Gille JC, Edwards DP, Attié JL, Warner J, Ziskin D, Francis G, Khattatov B, Yudin V, Lamarque JF, Ho SP, Mao D, Chen JS, Drummond J, Novelli P, Sachse G, Coffey MT, Hannigan JW, Gerbig C, Kawakami S, Kondo Y, Takegawa N, Schlager H, Baehr J, Ziereis H. Validation of Measurements of Pollution in the Troposphere (MOPITT) CO retrievals with aircraft in situ profiles. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004101] [Citation(s) in RCA: 192] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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