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Daniel J, Burke K, Whitehurst P. OC-0503 Characterisation of cardiac and respiratory motion in cone-beam CT images for cardiac SABR. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06929-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Vegivinti C, Assi M, Talwani R, Koblizek V, Burke K, Temesgen Z. Investigational antiviral drugs for the treatment of COVID-19. DRUG FUTURE 2021. [DOI: 10.1358/dof.2021.46.9.3293585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Assi M, Koshy K, El Atrouni W, Burke K, Berg M, Opardija A, Temesgen Z. Investigational immunomodulatory therapies for COVID-19. DRUG FUTURE 2021. [DOI: 10.1358/dof.2021.46.9.3317238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Peedell C, Aynsley E, Wood A, Kumar G, Masinghe S, Reynolds J, Huntley C, Blower A, Green J, Bradley J, Veeratterapillay J, Hassani A, Anderson M, Greenhalgh A, Daniel J, Swingler A, Turnbull M, Burke K. PO-0988: Is there a learning curve for SABR that affects overall survival outcomes in early stage NSCLC? Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01005-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Mitchell C, Burke K, Halford N, Rothwell K, Darley S, Woodward-Nutt K, Bowen A, Patchwood E. Value and learning from carer involvement in a cluster randomised controlled trial and process evaluation - Organising Support for Carers of Stroke Survivors (OSCARSS). Res Involv Engagem 2020; 6:21. [PMID: 32419954 PMCID: PMC7210672 DOI: 10.1186/s40900-020-00193-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/14/2020] [Indexed: 05/26/2023]
Abstract
BACKGROUND Patient, Carer and Public Involvement (PCPI) should be embedded in health care research. Delivering PCPI can be challenging, but even when PCPI is carried out it is rarely reported resulting in lost opportunities for learning. This paper aims to describe PCPI in the OSCARSS study, a pragmatic-cluster randomised controlled trial with an embedded economic and process evaluation. METHODS A carer research user group (RUG) co-developed OSCARSS to evaluate how to best deliver support to caregivers of stroke survivors. The PCPI activity involved regular meetings and preparatory work, from the initial conceptualisation of the study through to dissemination. Written reports, structured group discussions and individual interviews were carried out with the RUG and researchers to capture the added value and learning. This paper was co-authored by two of the RUG members with contributions from the wider RUG and researchers. RESULTS The core six members of the caregiver RUG attended the majority of the meetings alongside three researchers, one of whom was the co-chief investigator. PCPI was instrumental in changing many aspects of the research protocol, design and delivery and contributed to dissemination and sharing of good practice. There were challenges due to the emotional toll when PCPI members shared their stories and the extensive time commitment. Positive experiences of learning and fulfilment were reported by the individual researchers and PCPI members. Wider organisational administrative and financial support facilitated the PCPI. The researchers' existing positive regard for PCPI and the clear focus of the group were key to the successful co-design of this research. CONCLUSIONS The value and learning from the PCPI collaborative work with the researchers was of benefit to the study and the individuals involved. Specific PCPI influences were a challenge to pinpoint as successful co-design meant the researchers' and carers' contributions were intertwined and decision-making shared.
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Affiliation(s)
- C. Mitchell
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - K. Burke
- Patient and Carer Public Involvement (PCPI) contributors: lay members of the OSCARSS Carer Research User Group, Manchester, UK
| | - N. Halford
- Patient and Carer Public Involvement (PCPI) contributors: lay members of the OSCARSS Carer Research User Group, Manchester, UK
| | - K. Rothwell
- Stroke Association support services, Stroke Association, London, UK
| | - S. Darley
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - K. Woodward-Nutt
- Research & Innovation, Northern Care Alliance NHS Group, Salford, UK
| | - A. Bowen
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - E. Patchwood
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
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Hughes D, Dailianis AE, Hill L, Curiale MS, Gangar V, Arnold D, Barrat C, Baxter T, Bell J, Brooks R, Bryant D, Burke K, Burnie A, Cliffard D, Danisavich T, Daniels K, Deiss K, D’Onorio A, Faucher K, Finkenbiner D, Gasanov U, Gebler J, Gerry A, Graham D, Graham T, Harris P, Hetrick S, Jurgens J, Keating KJ, Klokman R, Le C, Matrozza M, McCarthy R, McCawley C, Munyard S, Pye V, Rajkowski K, Ristov K, Rosinko J, Schneider K, Schubert MJ, Sloan E, Souter, Wilson M, Zuroski K. Salmonella in Foods: New Enrichment Procedure for TECRA Salmonella Visual Immunoassay Using a Single RV(R10) Only, TT Only, or Dual RV(R10) and TT Selective Enrichment Broths (AOAC Official Method 998.09): Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.4.775] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A collaborative study was conducted to compare a new enrichment procedure for the TECRA® Salmonella Visual Immunoassay (TSVIA) with the reference method given in the U.S. Food and Drug Administration's Bacteriological Analytical Manual (7th Ed.). Three food types (milk powder, pepper, and soy flour) were analyzed in Australia and 3 food types (milk chocolate, dried egg, and raw turkey) were analyzed in the United States. Thirty-eight collaborators participated in the study. The TECRA method was evaluated using both Rappaport-Vassiliadis R10 (RV(R10)) and tetrathionate (TT) broths for selective enrichment. M broth cultures arising from each of the 2 selective enrichment broths were tested in the TSVIA using 2 individual wells, one for each selective broth, and a single well to test the pooled selective enrichment broths. The results for the pooled enrichment broths were reported elsewhere. This study presents the results for the use of single enrichment broths, i.e., RV(R10) only or TT only, with the TSVIA. No significant differences (p > 0.05) were observed for the pairwise comparison of the proportion of positive samples for either RV(R10) or TT used as a single enrichment broth for the TSVIA with that for the reference method.
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Affiliation(s)
- Denise Hughes
- TECRA International, 13 Rodborough Rd, Frenchs Forest, NSW 2086, Australia
| | - Angela E Dailianis
- TECRA International, 13 Rodborough Rd, Frenchs Forest, NSW 2086, Australia
| | - Louise Hill
- TECRA International, 13 Rodborough Rd, Frenchs Forest, NSW 2086, Australia
| | - Michael S Curiale
- Silliker Laboratories Group, Research Services, Halsted St, Chicago Heights, IL 60430
| | - Vidhya Gangar
- Silliker Laboratories Group, Research Services, Halsted St, Chicago Heights, IL 60430
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Scerpella D, Marx K, Burke K, Gitlin L. USING GEOGRAPHICAL INFORMATION SYSTEMS (GIS) FOR TARGETING RECRUITMENT IN DEMENTIA STUDIES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D.L. Scerpella
- Center for Innovative Care in Aging, Johns Hopkins University, Baltimore, Maryland
| | - K.A. Marx
- Center for Innovative Care in Aging, Johns Hopkins University, Baltimore, Maryland
| | - K. Burke
- Center for Innovative Care in Aging, Johns Hopkins University, Baltimore, Maryland
| | - L.N. Gitlin
- Center for Innovative Care in Aging, Johns Hopkins University, Baltimore, Maryland
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Burke K, MacKenzie G. Multi-parameter regression survival modeling: An alternative to proportional hazards. Biometrics 2016; 73:678-686. [DOI: 10.1111/biom.12625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 10/01/2016] [Accepted: 10/01/2016] [Indexed: 11/27/2022]
Affiliation(s)
- K. Burke
- Department of Mathematics and Statistics; University of Limerick; Limerick Ireland
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Nathan N, Burke K, Moss J, Darling TN. A diagnostic and management algorithm for individuals with an isolated skin finding suggestive of tuberous sclerosis complex. Br J Dermatol 2016; 176:220-223. [PMID: 27167640 DOI: 10.1111/bjd.14724] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N Nathan
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, MD, U.S.A.,Cardiovascular and Pulmonary Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, U.S.A
| | - K Burke
- Department of Dermatology, Madigan Army Medical Center, Tacoma, WA, U.S.A
| | - J Moss
- Cardiovascular and Pulmonary Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, U.S.A
| | - T N Darling
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, MD, U.S.A
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Peedell C, Aynsley E, Shakespeare D, Green J, Summers P, Reynolds J, Burke K, Bayles H, Huntley C, Richmond N. EP-1212: Are the encouraging SABR results for NSCLC reproducible outside of pioneering academic institutions? Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32462-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Burke K. Interactive Patient Engagement: System Design to Cross the Continuum of Care. Stud Health Technol Inform 2016; 225:631-632. [PMID: 27332285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Patient Engagement is a critical and fundamental driver in the transformation of healthcare. Patient involvement through interactive care is a proven approach for improved health outcomes; however, a single strategy to achieve success will not suffice. An interactive patient engagement system design, as a multi-tactic landscape of solutions, is necessary to effectively engage patients.
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Affiliation(s)
- K Burke
- The Medical University of South Carolina, Charleston, South Carolina
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Burke K, Smid M, Dawes RP, Timmermans MA, Salzman P, van Deurzen CHM, Beer DG, Foekens JA, Brown E. Using second harmonic generation to predict patient outcome in solid tumors. BMC Cancer 2015; 15:929. [PMID: 26603532 PMCID: PMC4659155 DOI: 10.1186/s12885-015-1911-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 11/05/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Over-treatment of estrogen receptor positive (ER+), lymph node-negative (LNN) breast cancer patients with chemotherapy is a pressing clinical problem that can be addressed by improving techniques to predict tumor metastatic potential. Here we demonstrate that analysis of second harmonic generation (SHG) emission direction in primary tumor biopsies can provide prognostic information about the metastatic outcome of ER+, LNN breast cancer, as well as stage 1 colorectal adenocarcinoma. METHODS SHG is an optical signal produced by fibrillar collagen. The ratio of the forward-to-backward emitted SHG signals (F/B) is sensitive to changes in structure of individual collagen fibers. F/B from excised primary tumor tissue was measured in a retrospective study of LNN breast cancer patients who had received no adjuvant systemic therapy and related to metastasis-free survival (MFS) and overall survival (OS) rates. In addition, F/B was studied for its association with the length of progression-free survival (PFS) in a subgroup of ER+ patients who received tamoxifen as first-line treatment for recurrent disease, and for its relation with OS in stage I colorectal and stage 1 lung adenocarcinoma patients. RESULTS In 125 ER+, but not in 96 ER-negative (ER-), LNN breast cancer patients an increased F/B was significantly associated with a favorable MFS and OS (log rank trend for MFS: p = 0.004 and for OS: p = 0.03). On the other hand, an increased F/B was associated with shorter PFS in 60 ER+ recurrent breast cancer patients treated with tamoxifen (log rank trend p = 0.02). In stage I colorectal adenocarcinoma, an increased F/B was significantly related to poor OS (log rank trend p = 0.03), however this relationship was not statistically significant in stage I lung adenocarcinoma. CONCLUSION Within ER+, LNN breast cancer specimens the F/B can stratify patients based upon their potential for tumor aggressiveness. This offers a "matrix-focused" method to predict metastatic outcome that is complementary to genomic "cell-focused" methods. In combination, this and other methods may contribute to improved metastatic prediction, and hence may help to reduce patient over-treatment.
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Affiliation(s)
- K Burke
- Department of Biomedical Engineering, University of Rochester, 207 Robert B. Goergen Hall, Box 270168, Rochester, NY, 14627, USA.
| | - M Smid
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands.
| | - R P Dawes
- Neuroscience Graduate Program, University of Rochester, 601 Elmwood Ave, Rochester, NY, 14642, USA.
| | - M A Timmermans
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands.
| | - P Salzman
- Department of Biostatistics and Computational Biology, University of Rochester, 601 Elmwood Ave, Rochester, NY, 14642, USA.
| | - C H M van Deurzen
- Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - David G Beer
- Departments of Surgery and Radiation Oncology, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - J A Foekens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands.
| | - E Brown
- Department of Biomedical Engineering, University of Rochester, 207 Robert B. Goergen Hall, Box 270168, Rochester, NY, 14627, USA. .,Department of Neurobiology and Anatomy, University of Rochester, 601 Elmwood Ave, Rochester, NY, 14642, USA.
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Abstract
This review explains the relationship between density functional theory and strongly correlated models using the simplest possible example, the two-site Hubbard model. The relationship to traditional quantum chemistry is included. Even in this elementary example, where the exact ground-state energy and site occupations can be found analytically, there is much to be explained in terms of the underlying logic and aims of density functional theory. Although the usual solution is analytic, the density functional is given only implicitly. We overcome this difficulty using the Levy-Lieb construction to create a parametrization of the exact function with negligible errors. The symmetric case is most commonly studied, but we find a rich variation in behavior by including asymmetry, as strong correlation physics vies with charge-transfer effects. We explore the behavior of the gap and the many-body Green's function, demonstrating the 'failure' of the Kohn-Sham (KS) method to reproduce the fundamental gap. We perform benchmark calculations of the occupation and components of the KS potentials, the correlation kinetic energies, and the adiabatic connection. We test several approximate functionals (restricted and unrestricted Hartree-Fock and Bethe ansatz local density approximation) to show their successes and limitations. We also discuss and illustrate the concept of the derivative discontinuity. Useful appendices include analytic expressions for density functional energy components, several limits of the exact functional (weak- and strong-coupling, symmetric and asymmetric), various adiabatic connection results, proofs of exact conditions for this model, and the origin of the Hubbard model from a minimal basis model for stretched H2.
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Affiliation(s)
- D J Carrascal
- Department of Physics, Universidad de Oviedo, 33007 Oviedo, Spain. Nanomaterials and Nanotechnology Research Center, Oviedo, Spain
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Muscara F, McCarthy MC, Woolf C, Hearps SJC, Burke K, Anderson VA. Early psychological reactions in parents of children with a life threatening illness within a pediatric hospital setting. Eur Psychiatry 2015; 30:555-61. [PMID: 25618445 DOI: 10.1016/j.eurpsy.2014.12.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 10/24/2022] Open
Abstract
RESEARCH IN CONTEXT Parents of children with life threatening illness or injuries are at elevated risk of distress reactions, involving symptoms of acute stress disorder, depression and anxiety. Currently, the impact of child illness factors is unclear, and to date research systematically examining the prevalence of these psychological reactions across different illness groups with an acute life threat is sparse. This is important to explore given that studies show that parent functioning impacts on the psychological adjustment and recovery of the ill child. WHAT DOES THIS STUDY ADD?: At four weeks following a child's diagnosis of a serious illness, 49-54% of parents met DSM-IV criteria for acute stress disorder, across a number of illness groups, whereas 15-27% of parents were in the moderate/severe range for depression and anxiety, and 25-31% for stress. Results from this study demonstrate that rates and severity of these psychological reactions in parents of seriously ill children do not vary according to illness type. BACKGROUND A life threatening childhood illness/injury can lead to significant distress reactions in parents, with independent studies finding such reactions in several different illness groups. To date, there is limited research systematically comparing the prevalence of adverse parental psychological reactions across different childhood illness groups with an acute life threat. This study aimed to investigate the frequency and severity of symptoms of acute traumatic stress, depression, anxiety and general stress in parents, following admission of their child to hospital for a life threatening illness. The study also aimed to explore the relationship between these symptoms, and to determine whether they differ according to illness/injury. METHODS Cross-sectional data from a prospective, longitudinal study are reported. Participants were 194 parents of 145 children (49 couples), admitted to cardiology (n=53), oncology (n=40) and pediatric intensive care units (n=52), for serious illnesses/injuries. Parents completed self-report questionnaires within four weeks of hospital admission. RESULTS Rates of acute traumatic stress (P=0.262), depression (P=0.525), anxiety (P=0.453) and general stress symptoms (P=0.720) in parents were comparable across illness type, with 49-54% reaching criteria for acute stress disorder, 15-27% having clinical levels of depression and anxiety, and 25-31% for general stress. Anxiety was most strongly associated with acute traumatic stress (r=0.56), closely followed by stress (r=0.52) and depression (r=0.49), with all correlations highly significant (P<0.001). CONCLUSIONS These findings provide evidence that the child's medical condition is not associated with parents' experience of clinically significant psychological symptoms, and emphasize the importance for health care providers to be aware of these potential psychological reactions in parents, regardless of the type of illness.
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Affiliation(s)
- F Muscara
- Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia; Department of Pediatrics, School of Psychological Science, University of Melbourne, Melbourne, Australia; Psychology Service, Royal Children's Hospital, Melbourne, Australia.
| | - M C McCarthy
- Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia; Department of Pediatrics, School of Psychological Science, University of Melbourne, Melbourne, Australia; Children's Cancer Centre, Royal Children's Hospital, Melbourne, Australia
| | - C Woolf
- Department of Pediatrics, School of Psychological Science, University of Melbourne, Melbourne, Australia
| | - S J C Hearps
- Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia
| | - K Burke
- Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia; The Parenting Research Centre, East Melbourne, Australia; Parenting and Family Support Centre, School of Psychology, University of Queensland, Queensland, Australia
| | - V A Anderson
- Clinical Sciences, Murdoch Childrens Research Institute, Melbourne, Australia; Department of Pediatrics, School of Psychological Science, University of Melbourne, Melbourne, Australia; Psychology Service, Royal Children's Hospital, Melbourne, Australia
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Bahamón B, Gao F, Stringer B, Yang Y, Shi J, Burke K, Huck J, Traore T, Bowman D, Danaee H, Millhollen M, Hyer M, Bence N, Ishii Y. 231 Clinical pharmacodynamic assay development for the first in class investigational ubiquitin activating enzyme (UAE) inhibitor MLN7243. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70357-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Rosenfelder NA, Corsini L, McNair H, Pennert K, Burke K, Lamb CM, Aitken A, Ashley S, Khoo V, Brada M. Achieving the relocation accuracy of stereotactic frame-based cranial radiotherapy in a three-point thermoplastic shell. Clin Oncol (R Coll Radiol) 2012; 25:66-73. [PMID: 22795232 DOI: 10.1016/j.clon.2012.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 03/25/2012] [Accepted: 06/26/2012] [Indexed: 12/25/2022]
Abstract
AIMS To compare the accuracy of fractionated cranial radiotherapy in a standard three-point thermoplastic shell using daily online correction with accuracy in a Gill-Thomas-Cosman relocatable stereotactic frame. MATERIALS AND METHODS All patients undergoing fractionated radiotherapy for benign intracranial tumours between March 2009 and August 2010 were included. Patients were immobilised in the frame with those unable to tolerate it immobilised in the shell. The ExacTrac imaging system was used for verification/correction. Daily online imaging before and after correction was carried out for shell patients and systematic and random population set-up errors calculated. These were compared with frame patients who underwent standard departmental imaging/correction with fractions 1-3 and weekly thereafter. Set-up margins were calculated from population errors. RESULTS Systematic and random errors were 0.3-0.7 mm/° before correction and 0.1-0.2 mm/° after correction in all axes in the frame, and 0.6-1.5 mm/° before correction and 0.1-0.4 mm/° after correction in the shell. Isotropic margins required for patient set-up could be reduced from 2 mm to <1 mm in the frame and from 5 mm to <1 mm in the shell. CONCLUSION Similar set-up accuracy can be achieved in the standard thermoplastic shell as in a relocatable frame despite less precise immobilisation. The use of daily online correction precludes the need for larger set-up margins.
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Affiliation(s)
- N A Rosenfelder
- Department of Clinical Oncology, Royal Marsden NHS Foundation Trust, London, UK.
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Solda F, Wharram B, Ashley S, Bonner J, Corsini L, Burke K, Brada M. Long-Term Efficacy of Fractionated Stereotactic Radiotherapy for Benign Meningiomas. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Pittalis S, Proetto CR, Floris A, Sanna A, Bersier C, Burke K, Gross EKU. Exact conditions in finite-temperature density-functional theory. Phys Rev Lett 2011; 107:163001. [PMID: 22107376 DOI: 10.1103/physrevlett.107.163001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Indexed: 05/31/2023]
Abstract
Density-functional theory (DFT) for electrons at finite temperature is increasingly important in condensed matter and chemistry. The exact conditions that have proven crucial in constraining and constructing accurate approximations for ground-state DFT are generalized to finite temperature, including the adiabatic connection formula. We discuss consequences for functional construction.
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Affiliation(s)
- S Pittalis
- Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, Missouri 65211, USA.
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Brock J, Jones C, Wells E, Chapman H, Corsini L, Burke K, Brada M. 2064 POSTER Comparing Volumetric Intensity Modulated Arc Therapy With Multiple Static Field Radiosurgery for Brain Metastases. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71022-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Jani Z, Rosenfelder N, Humphreys M, McNair H, Burke K, Berstein D, van As N, Khoo V. 1260 poster THE INFLUENCE OF RECTAL FILLING ON RECTAL DISPLACEMENT AND ITS IMPACT ON DOSIMETRY WITHIN THE PTV. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71382-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rosenfelder N, Corsini L, Lamb C, Burke K, McNair H, Bidmead M, Aitken A, de Ieso P, Khoo V, Brada M. 475 poster ACHIEVING THE PRECISION OF STEREOTACTIC FRAME-BASED CRANIAL RADIOTHERAPY IN A THERMOPLASTIC SHELL. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)70597-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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van As N, Rosenfelder N, Lamb C, Schick U, Burke K, Bidmead M, Aitken A, Khoo V. 1027 poster IS DAILY ONLINE CORRECTION BENEFICIAL FOR PROSTATE RADIOTHERAPY? Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71149-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Aitken K, Lamb C, Rosenfelder N, Burke K, Bidmead M, van As N, Khoo V. 1026 poster INTRA-PROSTATIC FIDUCIAL MARKER STABILITY; SUB-MM AVERAGE MARKER DISPLACEMENT THROUGHOUT TREATMENT. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71148-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lamb C, Burke K, Rosenfelder N, Khoo V. Prostate Rotations: is the CTV still Contained within the PTV? Clin Oncol (R Coll Radiol) 2011. [DOI: 10.1016/j.clon.2011.01.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Aitken K, Lamb C, Rosenfelder N, Burke K, Bidmead M, Van As N, Khoo V. Assessing the Stability of Prostate Fiducial Markers over a Course of Radiotherapy. Clin Oncol (R Coll Radiol) 2011. [DOI: 10.1016/j.clon.2011.01.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hawkins M, Coolens C, Ockwell C, Burke K, Tait D. Highly Conformal Partial Liver Irradiation for Chemorefractory Unresectable Colorectal Liver Metastases. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Burke K. It's time to go to the doctor's. Disabil Health J 2009; 2:167-8. [PMID: 21122756 DOI: 10.1016/j.dhjo.2009.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2009] [Revised: 06/25/2009] [Accepted: 06/25/2009] [Indexed: 11/30/2022]
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Strong RK, Boni E, Bradley-Hewitt T, Burke K, Friend D, Holmes M, Hsu C, Zenobia C, Schief W, Stamatatos L. P05-06. Masking of MPER epitopes through self-associations. Retrovirology 2009. [PMCID: PMC2767987 DOI: 10.1186/1742-4690-6-s3-p82] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Bernstein D, Miah A, Bhide S, Burke K, Wells E, Nutting C. ASSESSMENT OF AN ADAPTIVE RADIOTHERAPY PLANNING PROTOCOL FOR HEAD AND NECK IMRT. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72656-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ahmed M, Sohaib A, Schmidt M, Burke K, Kong C, Usher M, Davies M, Harrington K, Nutting C. THE VALUE OF MAGNETIC RESONANCE IMAGING IN TARGET VOLUME DELINEATION (TVD) OF BASE OF TONGUE (BOT) TUMOURS – A STUDY USING FLEX-L COILS. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72694-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Burke K, Penston H, Riley J. 1323 Audit of specialist nurse pharmacological intervention in chronic heart failure. Eur J Cardiovasc Nurs 2008. [DOI: 10.1016/j.ejcnurse.2008.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- K. Burke
- Royal Brompton and Harefield NHS Trust, London, United Kingdom
| | - H. Penston
- West Middlesex University Hospital, London, United Kingdom
| | - J. Riley
- Royal Brompton and Harefield NHS Trust, London, United Kingdom
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Jankowska P, Kong C, Burke K, Harrington K, Nutting C. A systematic study of posterior cervical lymph node irradiation with electrons: conventional versus customized planning. Radiother Oncol 2007. [DOI: 10.1016/s0167-8140(07)80126-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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LeRoy P, Hoar K, Burke K, Ruan J, Bowman D, Galvin K, Ecsedy J. 368 POSTER Localization of human TACC3 to centrosomes is mediated by phosphorylation on serine 558 by aurora a; a novel pharmacodynamic method for measuring aurora a activity. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70373-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Galvin KM, Huck J, Burenkova O, Burke K, Bowman D, Shinde V, Stringer B, Zhang M, Manfredi M, Meetze K. Preclinical pharmacodynamic studies of Aurora A inhibition by MLN8054. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.13059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
13059 Background: The mitotic kinase Aurora A is implicated in the development of multiple tumor types. MLN8054 is an oral, potent and selective small-molecule inhibitor of Aurora A with broad efficacy in preclinical models of cancer. Inhibition of Aurora A by MLN8054 induces accumulation of mitotic cells, followed by apoptosis. This study explores relationships between Aurora A inhibition, mitotic index, and tumor growth inhibition for xenograft models with different sensitivity to MLN8054. The marker response in mouse skin was also studied. Methods: Mice bearing subcutaneous xenografts were dosed orally qd or bid with MLN8054 for 21 days. Pharmacodynamic markers were studied after 1–2 doses. Formalin-fixed xenograft tissues were stained with the mitotic markers pHisH3 and MPM2, or with an antibody to the T288 autophosphorylation site on Aurora A. Tumor growth inhibition (TGI) was calculated using the formula 100 - [ΔT/ΔC * 100], where ΔT is the volume change for treated tumors, and ΔC is the volume change for control tumors. Results: HCT116 human colon xenografts were sensitive to MLN8054 on a qd or bid schedule (84% and 96% TGI respectively for 30mg/kg dose). The T288 autophosphorylation site was used to directly demonstrate inhibition of Aurora A, which resulted in dose-dependent duration of the elevation in mitotic index. Efficacy was similar for qd vs bid dosing of 30mg/kg MLN8054, and accordingly we found that a single dose was sufficient to elevate the mitotic index for about 20–24h in this model. SW480 human colon xenografts have MLN8054 sensitivity similar to that of HCT116, but more modest effects on mitotic index were observed. The mitotic index profile of SW480 is similar to that of MDA-MB-231 xenografts, the most insensitive model studied. Elevated mitotic index was also observed in mouse skin. Conclusions: We found that mitotic index measurements coupled with the T288 autophosphorylation site as a direct marker of Aurora A activity are useful for monitoring inhibition of Aurora A by MLN8054 in tumor and/or skin biopsies. In a sensitive model, greater duration of mitotic index elevation results in greater efficacy. Our continuing work aims to better understand the differences in marker and efficacy responses between xenograft lines, incorporating the pT288 antibody as a direct marker of Aurora A inhibition. [Table: see text]
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Affiliation(s)
| | - J. Huck
- Millennium Pharmaceuticals, Cambridge, MA
| | | | - K. Burke
- Millennium Pharmaceuticals, Cambridge, MA
| | - D. Bowman
- Millennium Pharmaceuticals, Cambridge, MA
| | - V. Shinde
- Millennium Pharmaceuticals, Cambridge, MA
| | | | - M. Zhang
- Millennium Pharmaceuticals, Cambridge, MA
| | | | - K. Meetze
- Millennium Pharmaceuticals, Cambridge, MA
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Scherz A, Gross EKU, Appel H, Sorg C, Baberschke K, Wende H, Burke K. Measuring the kernel of time-dependent density functional theory with x-ray absorption spectroscopy of transition metals. Phys Rev Lett 2005; 95:253006. [PMID: 16384459 DOI: 10.1103/physrevlett.95.253006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2005] [Indexed: 05/05/2023]
Abstract
The 2p-3d core-hole interaction in the L2.3 absorption spectra of the transition metals is treated within time-dependent density functional theory. A simple three-level model explains the origin of the strong deviations from the one-particle branching ratio and yields matrix elements of the unknown exchange-correlation kernel directly from experiment.
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Affiliation(s)
- A Scherz
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin-Dahlem, Germany
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Fajans J, Bertsche W, Burke K, Chapman SF, van der Werf DP. Effects of extreme magnetic quadrupole fields on penning traps and the consequences for antihydrogen trapping. Phys Rev Lett 2005; 95:155001. [PMID: 16241731 DOI: 10.1103/physrevlett.95.155001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2004] [Indexed: 05/05/2023]
Abstract
Measurements on electrons confined in a Penning trap show that extreme quadrupole fields destroy particle confinement. Much of the particle loss comes from the hitherto unrecognized ballistic transport of particles directly into the wall. The measurements scale to the parameter regime used by ATHENA and ATRAP to create antihydrogen, and suggest that quadrupoles cannot be used to trap antihydrogen.
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Affiliation(s)
- J Fajans
- Department of Physics, University of California at Berkeley, and the Lawrence Berkeley National Laboratory, Berkeley California 94720, USA
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Fuchs M, Niquet YM, Gonze X, Burke K. Describing static correlation in bond dissociation by Kohn–Sham density functional theory. J Chem Phys 2005; 122:094116. [PMID: 15836121 DOI: 10.1063/1.1858371] [Citation(s) in RCA: 135] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We show that density functional theory within the RPA (random phase approximation for the exchange-correlation energy) provides a correct description of bond dissociation in H(2) in a spin-restricted Kohn-Sham formalism, i.e., without artificial symmetry breaking. We present accurate adiabatic connection curves both at equilibrium and beyond the Coulson-Fisher point. The strong curvature at large bond length implies important static (left-right) correlation, justifying modern hybrid functional constructions but also demonstrating their limitations. Although exact at infinite separation and accurate near the equilibrium bond length, the RPA dissociation curve displays unphysical repulsion at larger but finite bond lengths. Going beyond the RPA by including the exact exchange kernel (RPA+X), we find a similar repulsion. We argue that this deficiency is due to the absence of double excitations in adiabatic linear response theory. Further analyzing the H(2) dissociation limit we show that the RPA+X is not size consistent, in contrast to the RPA.
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Affiliation(s)
- M Fuchs
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
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Liu F, Gonzalo J, Fedyk E, Pulido J, Tayber O, O'Connell L, Burke K, Cao W, Hodge M, Suzuki Y. Pharmacological characterization of guinea pig chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2). J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
For a given excited state there exist densities that arise from more than one external potential. This is due to a qualitatively different energy-density relationship from that of the ground state and is related to positive eigenvalues in the nonlocal susceptibility for excited states. Resulting problems with the generalization of the density functional methodology to excited states are discussed.
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Affiliation(s)
- R Gaudoin
- Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Rd., Piscataway, New Jersey 08854, USA
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Abstract
A nonempirical minimal atomic multipole expansion (MAME) defines atomic charges or higher multipoles that reproduce electrostatic potential outside molecules. MAME eliminates problems associated with redundancy and with statistical sampling, and produces atomic multipoles in line with chemical intuition.
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Affiliation(s)
- E V Tsiper
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, USA
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Burke K. GPs' time to be freed up under plans for increased choice. West J Med 2003. [DOI: 10.1136/bmj.327.7428.1363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Burke K. Frontline staff in NHS to learn to defuse violent situations. West J Med 2003. [DOI: 10.1136/bmj.327.7426.1250-k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Burke K. Foundation hospital plan defeated in Lords. West J Med 2003. [DOI: 10.1136/bmj.327.7424.1126-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Burke K. Long term care will "implode" unless personal care comes free. West J Med 2003. [DOI: 10.1136/bmj.327.7418.770-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Fuchs M, Burke K, Niquet YM, Gonze X. Comment on "Total energy method from many-body formulation". Phys Rev Lett 2003; 90:189701-189702. [PMID: 12786053 DOI: 10.1103/physrevlett.90.189701] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2002] [Indexed: 05/24/2023]
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Abstract
An approximate solution to the time-dependent density-functional theory response equations for finite systems is developed, yielding corrections to the single-pole approximation. These explain why allowed Kohn-Sham transition frequencies and oscillator strengths are usually good approximations to the true values, and why sometimes they are not. The approximation yields simple expressions for Görling-Levy perturbation theory results, and a method for estimating expectation values of the unknown exchange-correlation kernel.
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Affiliation(s)
- H Appel
- Department of Physics, Rutgers University, Frelinghuysen Road, Piscataway, New Jersey 08854, USA
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Abstract
AbstractWe relate the depositional and structural histories of the sedimentary rocks containing Africa’s primary petroleum systems to four tectonic intervals, which in the light of their widespread and beneficial consequences we designate as ‘Aces’. The Ace of Clubs was the assembly of Gondwana by continental collision and the collapse and erosion of the mountains constructed during that assembly, which generated accommodation space through thermal subsidence over a vast area. Africa’s oldest great reservoir rocks accumulated in that space during Cambro-Ordovician times (520-440 Ma). After a short-lived glacial interval, Silurian and Devonian source rocks formed parts of a thick section that was deposited as long-term subsidence continued. The Ace of Diamonds consists of the collision of Baltica with Laurentia at c. 380 Ma and the collision between Gondwana and Laurussia at c. 310 Ma. It also includes the intracontinental deformation and orogenic collapse associated with the latter event, during the course of which regionally important structures and rifts now containing hydrocarbon-bearing fill were generated. Productive petroleum systems involving older Palaeozoic source rocks are concentrated in the rifts and sedimentary rocks of this phase.The two other aces relate to the plume-dominated break-up of Pangaea. The Aces of Hearts and Spades were the eruption of the Karroo Plume at 183 Ma and the eruption of the Afar Plume at 31 Ma. These plumes, because they both generated huge volumes of basalt during brief intervals, are considered to have come from the deep mantle where, for more than 200 million years there has been a discrete large volume of hot rock over which Africa has been slowly rotating. Perhaps as many as six other deep-seated plumes have risen from that deep hot volume. The importance of the Karroo and Afar Plumes comes from the fact that they arrested the motion of the African Plate and, on each occasion, fostered the establishment of a new shallow-mantle convective circulation pattern. Intracontinental rifts, basins and swells developed above the new convection pattern after both arrests. Organic-rich sedimentary rocks deposited in rifts and at continental margins that formed in response to the Karroo-Plume-induced plate-pinning episode (K-pippe, 183-133 Ma) are being buried today under piles of sedimentary rock eroded from swells that have been rising since the later Afar-Plume-induced plate-pinning episode (A-pippe) began at 31 Ma. The Afar Plume eruption is designated ‘Ace of Spades’ because oil and gas generated following source-rock burial by sediments eroded from Africa’s active swells during the past 31 Ma together make up three-quarters of Africa’s hydrocarbon resource. In addition, half of that petroleum lies in reservoirs deposited during this phase.
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Affiliation(s)
- K. Burke
- Department of Geosciences, University of Houston
Houston, Texas, 77204-5507, USA
| | - D. S. MacGregor
- PGS Reservoir Consultants (UK) Ltd.
PGS Thames House, 17–19 Marlow Road, Maidenhead, Berkshire, SL6 7AA, UK
| | - N. R. Cameron
- Global Exploration Services Ltd.
Little Lower Ease, Cuckfield Road, Ansty, West Sussex, RH17 5AL, UK
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