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Barkley A, Butler E, Park C, Friedman A, Landi D, Ashley DM, Bigner D, Bernstock JD, Friedman GK, Johnston JM, Thompson EM. The safety and accuracy of intratumoral catheter placement to infuse viral immunotherapies in children with malignant brain tumors: a multi-institutional study. J Neurosurg Pediatr 2024; 33:359-366. [PMID: 38215438 PMCID: PMC10810678 DOI: 10.3171/2023.12.peds23404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/06/2023] [Indexed: 01/14/2024]
Abstract
OBJECTIVE Relatively little is known about the safety and accuracy of catheter placement for oncolytic viral therapy in children with malignant brain tumors. Accordingly, this study combines data from two phase I clinical trials that employed viral immunotherapy across two institutions to describe the adverse event profile, safety, and accuracy associated with the stereotactic placement and subsequent removal of intratumoral catheters. METHODS Children with progressive/recurrent supratentorial malignant tumors were enrolled in two clinical trials (NCT03043391 and NCT02457845) and treated with either the recombinant polio:rhinovirus (lerapolturev) or the genetically modified oncolytic herpesvirus (G207). Age, sex, race, tumor diagnosis, and tumor location were analyzed. Events related to the catheter placement or removal were categorized. A catheter that was either pulled back or could not be used was defined as "misplaced." Neuronavigation software was used to analyze the accuracy of catheter placement for NCT03043391. Descriptive statistics were performed. RESULTS Nineteen patients were treated across the two completed trials with a total of 49 catheters. The mean ± SD (range) age was 14.1 ± 3.6 (7-19) years. All tumors were grade 3 or 4 gliomas. Nonlobar catheter tip placement included the corpus callosum, thalamus, insula, and cingulate gyrus. Six of 19 patients (31.6%) had minor hemorrhage noted on CT; however, no patients were symptomatic and/or required intervention related to these findings. One of 19 patients had a delayed CSF leak after catheter removal that required oversewing of the surgical site. No patients developed infection or a neurological deficit. In 7 patients with accuracy data, the mean ± SD distance of the planned trajectory (PT) to the catheter tip was 1.57 ± 1.6 mm, the mean angle of the PT to the catheter was 2.43° ± 2.1°, and the greatest distance of PT to the catheter in the parallel plane was 1.54 ± 1.5 mm. Three of 49 (6.1%) catheters were considered misplaced. CONCLUSIONS Although instances of minor hemorrhage were encountered, they were clinically asymptomatic. One of 49 catheters required intervention for a CSF leak. Congruent with previous studies in the literature, the stereotactic placement of catheters in these pediatric tumor patients was accurate with approximately 95% of catheters having been adequately placed.
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Affiliation(s)
- Ariana Barkley
- Department of Neurosurgery, University of New Mexico, Albuquerque, New Mexico
- Departments of Neurosurgery and
| | | | - Christine Park
- School of Medicine, Duke University, Durham, North Carolina
| | | | - Daniel Landi
- Pediatrics, Duke University, Durham, North Carolina
| | | | | | - Joshua D. Bernstock
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Gregory K. Friedman
- Pediatrics, University of Alabama at Birmingham, Alabama
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas; and
| | | | - Eric M. Thompson
- Departments of Neurosurgery and
- Department of Neurosurgery, University of Chicago, Illinois
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2
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Mondal S, Stevanovic B, Butler E, Wang JW, Meanwell MW. Electrochemical C-F bond activation of trifluoromethylarenes using silylium ions. Chem Commun (Camb) 2023; 59:6694-6697. [PMID: 37183480 DOI: 10.1039/d3cc01850d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
We report a mild, electrochemical trihydrodefluorination (e-THDF) for breaking highly stable C-F bonds in trifluoromethyl arenes to form the corresponding methyl arene products. Uniquely, this "green" approach relies on the in situ generation of Lewis acidic silyl cations that mediate fluoride abstraction. Overall, e-THDF has significantly improved functional group tolerance over current methods and should inspire the continued development of defluorinative processes.
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Affiliation(s)
- Subhojit Mondal
- Department of Chemistry, University of Alberta, Edmonton, Canada.
| | - Boris Stevanovic
- Department of Chemistry, University of Alberta, Edmonton, Canada.
| | - Eric Butler
- Department of Chemistry, University of Alberta, Edmonton, Canada.
| | - Jason W Wang
- Department of Chemistry, University of Alberta, Edmonton, Canada.
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Butler E, Walsh JE, Grogan S, Lyons C, Whalley D, Fitzpatrick J, Gallagher L, Dockery F. 348 WHAT IS THE OLDER PATIENT’S VIEW ON RECEIVING DETAILED MEDICAL LETTERS? Age Ageing 2022. [DOI: 10.1093/ageing/afac218.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Sending copies of clinic letters to patients involves additional work for medical staff in formatting letters, administrative staff in printing and posting and is an added cost to the healthcare service. Though seen largely as good practice in some specialities, it is not done routinely in Geriatric medical services. We introduced this practice as standard in our service and wished to evaluate whether from the patient perspective, it is worthwhile.
Methods
We sent a questionnaire to n=80 older patients who were evaluated in the home setting (by the Integrated Care Team for Older People – ICTOP) or recently attended CGA (Comprehensive Geriatric Assessment) clinic or FLS (Fracture Liaison Service) clinic. We asked their opinion on the detailed medical letter sent to their General Practitioner (GP), which they received a copy of. The questionnaire could be completed by patient/carer/relative, and returned anonymously.
Results
N=30/80 were returned. Two said they found the letter difficult to understand; 1/30 said the letter caused them to worry but all said they still preferred that they had received it. N= 2 said they would like to have contributed to the letter for accuracy. All said they felt they should receive copies of all their medical correspondence. Free text comments showed overwhelming support for the process, in allowing them to self-manage their health, enhance communication with other healthcare professionals and was a useful document to refer back to when they are trying to process information during short consultations.
Conclusion
Though a small survey and limited by low response rate, older people expressed high levels of satisfaction in receiving copies of medical letters about their health. It supports the ongoing practice and should be adopted widely.
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Affiliation(s)
- E Butler
- Beaumont Hospital , Dublin, Ireland
| | - JE Walsh
- Integrated Care Team for Older People, North Dublin , Dublin, Ireland
| | - S Grogan
- Integrated Care Team for Older People, North Dublin , Dublin, Ireland
| | - C Lyons
- Beaumont Hospital , Dublin, Ireland
| | - D Whalley
- Integrated Care Team for Older People, North Dublin , Dublin, Ireland
| | | | | | - F Dockery
- Beaumont Hospital , Dublin, Ireland
- Integrated Care Team for Older People, North Dublin , Dublin, Ireland
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Dockery F, Glynn A, Franks K, Carey JJ, O'Gradaigh D, Kenny P, Askin D, Butler E, Sweeney B, Conlon B, McGregor B, Lannon R, Rooney B, Pillai I, Fitzgerald C. Fracture liaison services in Ireland-how do we compare to international standards? Osteoporos Int 2022; 33:1089-1096. [PMID: 34981131 DOI: 10.1007/s00198-021-06251-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/23/2021] [Indexed: 10/19/2022]
Abstract
UNLABELLED In this first na tional survey of public hospitals in The Republic of Ireland, we found fracture liaison services (FLS) to be heterogeneous, limited in many cases and poorly supported. A national strategy is urgently needed to support the implementation and operation of an FLS, and thus help reduce the burden of fragility fractures for patients and the healthcare system. INTRODUCTION Fragility/low-trauma fractures are a global concern, whose incidence is rising as the population ages. Many are preventable, and people with a prior fragility fracture are at particularly high risk of further fractures. This patient group is the target of the International Osteoporosis Foundation (IOF) Capture the Fracture campaign, advocating global adoption of fracture liaison services (FLS), with the aim of preventing secondary fragility fractures. We wished to determine the current availability and standards of an FLS in Ireland, ahead of the launch of a National FLS database. METHODS We devised a questionnaire encompassing the thirteen IOF standards for an FLS and asked all 16 public hospitals with an orthopaedic trauma unit in Ireland, to complete for the calendar year 2019 in patients aged ≥ 50 years. RESULTS All sites returned the questionnaire, i.e. 100% response rate. Nine hospitals stated that they have an FLS, additionally one non-trauma hospital running a FLS responded, and were included. These 10 FLS had identified and managed 3444 non-hip fractures in the year 2019. This figure represents 19% of the expected non-hip fragility fracture numbers occurring annually in Ireland. Implementation of the IOF standards was very variable. All sites reported being inadequately resourced to provide a high-quality service necessary to be effective. CONCLUSION The existence and functioning of FLS in Ireland are heterogeneous and suboptimal. A national policy to support the implementation of this programme in line with international standards of patient care is urgently needed.
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Affiliation(s)
| | - A Glynn
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - K Franks
- Royal College of Surgeons in Ireland, Dublin, Ireland
| | - J J Carey
- University Hospital Galway, Galway, Ireland
| | - D O'Gradaigh
- University Hospital Waterford, Waterford, Ireland
| | - P Kenny
- Connolly Hospital, Dublin, Ireland
| | - D Askin
- Tallaght University Hospital, Dublin, Ireland
| | - E Butler
- Beaumont Hospital, Dublin, Ireland
| | - B Sweeney
- St. Vincent's University Hospital, Dublin, Ireland
| | - B Conlon
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - B McGregor
- Letterkenny University Hospital, Donegal, Ireland
| | - R Lannon
- St. James' Hospital, Dublin, Ireland
| | - B Rooney
- Sligo University Hospital, Sligo, Ireland
| | - I Pillai
- Tipperary University Hospital, Tipperary, Ireland
| | - C Fitzgerald
- Royal College of Surgeons in Ireland, Dublin, Ireland
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Altan M, Govindan R, Schoenfeld A, Noujaim J, Sacher A, Haanen J, Huang C, Hasan A, Faitg T, Butler E, Shalabi A, Owonikoko T. P14.19 CD8α-Enhanced NY-ESO-1-Specific TCR T Cells (GSK3901961) in HLA-A*02 Patients with NSCLC: Master Protocol Substudy 1. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.525] [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: 12/01/2022]
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6
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Butler E, Collins C, McCarthy S. Extending Pharmacy Services to the Point of Discharge. Ir Med J 2021; 114:235. [PMID: 37555865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
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Kaar SJ, Gobjila C, Butler E, Henderson C, Howes OD. Making decisions about antipsychotics: a qualitative study of patient experience and the development of a decision aid. BMC Psychiatry 2019; 19:309. [PMID: 31646985 PMCID: PMC6806500 DOI: 10.1186/s12888-019-2304-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/23/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Shared decision making is a widely accepted standard of patient-centred care that leads to improved clinical outcomes, yet it is commonly underutilised in the field of mental health. Furthermore, little is known regarding patient decision making around antipsychotic medication, which is often poorly adhered to. We aim to explore psychiatric patients' experiences of antipsychotic medication decision making in order to develop a patient decision aid to promote shared decision making. METHODS Focus groups were conducted with patients with chronic psychotic illnesses (n = 20) who had previously made a decision about taking or changing antipsychotic medication. Transcripts were coded and analysed for thematic content and continued until thematic saturation. These themes subsequently informed the development of a decision aid with the help of expert guidance. Further patient input was sought using the think aloud method (n = 3). RESULTS Twenty-three patients participated in the study. Thematic analysis revealed that 'adverse effects' was the most common theme identified by patients surrounding antipsychotic medication decision-making followed by 'mode and time of administration', 'symptom control' and 'autonomy'. The final decision aid is included to provoke further discussion and development of such aids. CONCLUSIONS Patients commonly report negative experiences of antipsychotic medication, in particular side-effects, which remain critical to future decision making around antipsychotic medication. Clinical encounters that increase patient knowledge and maximise autonomy in order to prevent early negative experiences with antipsychotic medication are likely to be beneficial.
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Affiliation(s)
- S J Kaar
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK.
| | - C Gobjila
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK
| | - E Butler
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK
| | - C Henderson
- Health Service and Population Research, Psychological and Systems Sciences, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, SE5 8AZ, UK
| | - O D Howes
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, PO63 De Crespigny Park, London, SE5 8AF, UK.,Psychiatric Imaging Group, MRC London Institute of Medical Sciences, Imperial College, Hammersmith Hospital, London, UK
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8
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Butler E, Møller MH, Cook O, Granholm A, Penketh J, Rygård SL, Aneman A, Perner A. Corticosteroids and risk of gastrointestinal bleeding in critically ill adults: Protocol for a systematic review. Acta Anaesthesiol Scand 2018; 62:1321-1326. [PMID: 29797714 DOI: 10.1111/aas.13159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Corticosteroids are frequently prescribed to critically ill patients. However, their use may increase the risk of gastrointestinal (GI) bleeding, which is associated with morbidity and mortality. Accordingly, we aim to assess whether continued administration of corticosteroids for >24 hours increases the rate of GI bleeding in adult critically ill patients compared to placebo or no treatment. METHODS/DESIGN We will conduct a systematic review of randomized clinical trials with meta-analysis and trial sequential analysis. The participants will be adult (as defined in the included trials) critically ill patients. The intervention will be any corticosteroid administered systematically for >24 hours and the comparator will be placebo or no treatment. The primary outcome will be rate of clinically important GI bleeding. We will systematically search EMBASE, MEDLINE, Medline In-Process, Cochrane Library, Epistemonikos and trial registries for relevant literature, as well as perform a hand search. We will follow the recommendations by the Cochrane Collaboration and the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement. The risk of systematic errors (bias) and random errors will be assessed and the overall quality of evidence will be evaluated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. DISCUSSION The risk of GI bleeding in adult critically ill patients treated with corticosteroids is unknown. Hence, there is need for a robust systematic review to assess this risk and provide clinicians with a clearer understanding of the strength and limitations of existing data.
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Affiliation(s)
- E. Butler
- University of New South Wales; Sydney NSW Australia
| | - M. H. Møller
- Department of Intensive Care 4131; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
| | - O. Cook
- Intensive Care Unit; Liverpool Hospital; Sydney NSW Australia
| | - A. Granholm
- Department of Intensive Care 4131; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
| | - J. Penketh
- Intensive Care Unit; Liverpool Hospital; Sydney NSW Australia
| | - S. L. Rygård
- Department of Intensive Care 4131; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
| | - A. Aneman
- Intensive Care Unit; Liverpool Hospital; Sydney NSW Australia
- South Western Sydney Clinical School; University of New South Wales; Sydney NSW Australia
- Ingham Institute for Applied Medical Research; Sydney NSW Australia
| | - A. Perner
- Department of Intensive Care 4131; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
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9
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Butler E, Kosuge T, Rogerson CT, Stevenson JA, Pomerleau R, Cummins GB, Morris EF, Smith AH. Reviews. Mycologia 2018. [DOI: 10.1080/00275514.1963.12018059] [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: 10/28/2022]
Affiliation(s)
- E. Butler
- Department of Plant Pathology, University of California, Davis
| | - T. Kosuge
- Department of Plant Pathology, University of California, Davis
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10
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Chan B, Butler E, Frost SA, Chuan A, Aneman A. Cerebrovascular autoregulation monitoring and patient-centred outcomes after cardiac surgery: a systematic review. Acta Anaesthesiol Scand 2018; 62:588-599. [PMID: 29573399 DOI: 10.1111/aas.13115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 02/16/2018] [Accepted: 02/19/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Impaired cerebrovascular autoregulation (CVAR) is observed in up to 20% of cardiac surgical patients. This systematic review aims to evaluate the association between impaired CVAR, measured by current monitoring techniques, and patient-centred outcomes in adults following cardiac surgery. METHODS MEDLINE, EMBASE, PubMed, MEDLINE In-Process and Cochrane Library were systematically searched through 8 December 2017. Studies were included if they assessed associations between CVAR and patient-centred outcomes in the adult cardiac surgical population. The primary outcome of this systematic review was mortality. Secondary outcomes were stroke, delirium and acute kidney injury. Risk of bias was systematically assessed, and the GRADE methodology was used to evaluate the quality of evidence across outcomes. RESULTS Eleven observational studies and no randomised controlled trials met the inclusion criteria. Due to methodological heterogeneity, meta-analysis was not possible. There was a high risk of bias within individual studies and low quality of evidence across outcomes. Of the included studies, one assessed mortality, five assessed stroke, four assessed delirium, and three assessed acute kidney injury. No reliable conclusions can be drawn from the one study assessing mortality. Interpretation of studies investigating CVAR and stroke, delirium and acute kidney injury was complicated by the lack of standardisation of monitoring techniques as well as varying definitions of impaired CVAR. CONCLUSIONS There is a paucity of high quality evidence for CVAR monitoring and its associations with outcome measures in post-cardiac surgical patients, highlighting the need for future studies.
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Affiliation(s)
- B. Chan
- Faculty of Medicine; University of New South Wales; Sydney NSW Australia
| | - E. Butler
- Faculty of Medicine; University of New South Wales; Sydney NSW Australia
| | - S. A. Frost
- Intensive Care Unit; Liverpool Hospital; Liverpool NSW Australia
- Ingham Institute for Applied Medical Research; Sydney NSW Australia
- South Western Sydney Clinical School; University of New South Wales; Sydney NSW Australia
- Centre for Applied Nursing Research; Western Sydney University; Sydney NSW Australia
| | - A. Chuan
- Ingham Institute for Applied Medical Research; Sydney NSW Australia
- South Western Sydney Clinical School; University of New South Wales; Sydney NSW Australia
- Department of Anaesthesia; Liverpool Hospital; Liverpool NSW Australia
| | - A. Aneman
- Intensive Care Unit; Liverpool Hospital; Liverpool NSW Australia
- Ingham Institute for Applied Medical Research; Sydney NSW Australia
- South Western Sydney Clinical School; University of New South Wales; Sydney NSW Australia
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Ahmadi M, Alves BXR, Baker CJ, Bertsche W, Butler E, Capra A, Carruth C, Cesar CL, Charlton M, Cohen S, Collister R, Eriksson S, Evans A, Evetts N, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Isaac CA, Ishida A, Johnson MA, Jones SA, Jonsell S, Kurchaninov L, Madsen N, Mathers M, Maxwell D, McKenna JTK, Menary S, Michan JM, Momose T, Munich JJ, Nolan P, Olchanski K, Olin A, Pusa P, Rasmussen CØ, Robicheaux F, Sacramento RL, Sameed M, Sarid E, Silveira DM, Stracka S, Stutter G, So C, Tharp TD, Thompson JE, Thompson RI, van der Werf DP, Wurtele JS. Erratum: Observation of the hyperfine spectrum of antihydrogen. Nature 2018; 553:530. [PMID: 29258296 DOI: 10.1038/nature24663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This corrects the article DOI: 10.1038/nature23446.
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12
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Ahmadi M, Alves BXR, Baker CJ, Bertsche W, Butler E, Capra A, Carruth C, Cesar CL, Charlton M, Cohen S, Collister R, Eriksson S, Evans A, Evetts N, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Isaac CA, Ishida A, Johnson MA, Jones SA, Jonsell S, Kurchaninov L, Madsen N, Mathers M, Maxwell D, McKenna JTK, Menary S, Michan JM, Momose T, Munich JJ, Nolan P, Olchanski K, Olin A, Pusa P, Rasmussen CØ, Robicheaux F, Sacramento RL, Sameed M, Sarid E, Silveira DM, Stracka S, Stutter G, So C, Tharp TD, Thompson JE, Thompson RI, van der Werf DP, Wurtele JS. Observation of the hyperfine spectrum of antihydrogen. Nature 2017; 548:66-69. [PMID: 28770838 DOI: 10.1038/nature23446] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 06/30/2017] [Indexed: 11/09/2022]
Abstract
The observation of hyperfine structure in atomic hydrogen by Rabi and co-workers and the measurement of the zero-field ground-state splitting at the level of seven parts in 1013 are important achievements of mid-twentieth-century physics. The work that led to these achievements also provided the first evidence for the anomalous magnetic moment of the electron, inspired Schwinger's relativistic theory of quantum electrodynamics and gave rise to the hydrogen maser, which is a critical component of modern navigation, geo-positioning and very-long-baseline interferometry systems. Research at the Antiproton Decelerator at CERN by the ALPHA collaboration extends these enquiries into the antimatter sector. Recently, tools have been developed that enable studies of the hyperfine structure of antihydrogen-the antimatter counterpart of hydrogen. The goal of such studies is to search for any differences that might exist between this archetypal pair of atoms, and thereby to test the fundamental principles on which quantum field theory is constructed. Magnetic trapping of antihydrogen atoms provides a means of studying them by combining electromagnetic interaction with detection techniques that are unique to antimatter. Here we report the results of a microwave spectroscopy experiment in which we probe the response of antihydrogen over a controlled range of frequencies. The data reveal clear and distinct signatures of two allowed transitions, from which we obtain a direct, magnetic-field-independent measurement of the hyperfine splitting. From a set of trials involving 194 detected atoms, we determine a splitting of 1,420.4 ± 0.5 megahertz, consistent with expectations for atomic hydrogen at the level of four parts in 104. This observation of the detailed behaviour of a quantum transition in an atom of antihydrogen exemplifies tests of fundamental symmetries such as charge-parity-time in antimatter, and the techniques developed here will enable more-precise such tests.
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Affiliation(s)
- M Ahmadi
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK
| | - B X R Alves
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - C J Baker
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - W Bertsche
- School of Physics and Astronomy, University of Manchester, Manchester M12 9PL, UK.,Cockcroft Institute, Sci-Tech Daresbury, Warrington WA4 4AD, UK
| | - E Butler
- Physics Department, CERN, CH-1211 Geneve 23, Switzerland
| | - A Capra
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - C Carruth
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - C L Cesar
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil
| | - M Charlton
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - S Cohen
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - R Collister
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - S Eriksson
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - A Evans
- Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - N Evetts
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J Fajans
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - T Friesen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - M C Fujiwara
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - D R Gill
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A Gutierrez
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.,Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UK
| | - J S Hangst
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - W N Hardy
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - M E Hayden
- Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - C A Isaac
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - A Ishida
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - M A Johnson
- School of Physics and Astronomy, University of Manchester, Manchester M12 9PL, UK.,Cockcroft Institute, Sci-Tech Daresbury, Warrington WA4 4AD, UK
| | - S A Jones
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - S Jonsell
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - L Kurchaninov
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - N Madsen
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - M Mathers
- Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3, Canada
| | - D Maxwell
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - J T K McKenna
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - S Menary
- Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3, Canada
| | - J M Michan
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada.,École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), Lausanne CH-1015, Switzerland
| | - T Momose
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J J Munich
- Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - P Nolan
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK
| | - K Olchanski
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A Olin
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada.,Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - P Pusa
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK
| | - C Ø Rasmussen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - F Robicheaux
- Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA
| | - R L Sacramento
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil
| | - M Sameed
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - E Sarid
- Soreq NRC, Yavne 81800, Israel
| | - D M Silveira
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil
| | - S Stracka
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada.,Universita di Pisa and Sezione INFN di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy
| | - G Stutter
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - C So
- Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - T D Tharp
- Physics Department, Marquette University, PO Box 1881, Milwaukee, Wisconsin 53201-1881, USA
| | - J E Thompson
- Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3, Canada
| | - R I Thompson
- Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - D P van der Werf
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK.,IRFU, CEA/Saclay, F-91191, Gif-sur-Yvette Cedex, France
| | - J S Wurtele
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
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13
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Sankey EW, Butler E, Sampson JH. Accuracy of Novel Computed Tomography–Guided Frameless Stereotactic Drilling and Catheter System in Human Cadavers. World Neurosurg 2017; 106:757-763. [DOI: 10.1016/j.wneu.2017.07.098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 07/16/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
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14
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Ahmadi M, Alves BXR, Baker CJ, Bertsche W, Butler E, Capra A, Carruth C, Cesar CL, Charlton M, Cohen S, Collister R, Eriksson S, Evans A, Evetts N, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Isaac CA, Ishida A, Johnson MA, Jones SA, Jonsell S, Kurchaninov L, Madsen N, Mathers M, Maxwell D, McKenna JTK, Menary S, Michan JM, Momose T, Munich JJ, Nolan P, Olchanski K, Olin A, Pusa P, Rasmussen CØ, Robicheaux F, Sacramento RL, Sameed M, Sarid E, Silveira DM, Stracka S, Stutter G, So C, Tharp TD, Thompson JE, Thompson RI, van der Werf DP, Wurtele JS. Antihydrogen accumulation for fundamental symmetry tests. Nat Commun 2017; 8:681. [PMID: 28947794 PMCID: PMC5613003 DOI: 10.1038/s41467-017-00760-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [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: 06/13/2017] [Accepted: 07/20/2017] [Indexed: 11/18/2022] Open
Abstract
Antihydrogen, a positron bound to an antiproton, is the simplest anti-atom. Its structure and properties are expected to mirror those of the hydrogen atom. Prospects for precision comparisons of the two, as tests of fundamental symmetries, are driving a vibrant programme of research. In this regard, a limiting factor in most experiments is the availability of large numbers of cold ground state antihydrogen atoms. Here, we describe how an improved synthesis process results in a maximum rate of 10.5 ± 0.6 atoms trapped and detected per cycle, corresponding to more than an order of magnitude improvement over previous work. Additionally, we demonstrate how detailed control of electron, positron and antiproton plasmas enables repeated formation and trapping of antihydrogen atoms, with the simultaneous retention of atoms produced in previous cycles. We report a record of 54 detected annihilation events from a single release of the trapped anti-atoms accumulated from five consecutive cycles. Antihydrogen studies are important in testing the fundamental principles of physics but producing antihydrogen in large amounts is challenging. Here the authors demonstrate an efficient and high-precision method for trapping and stacking antihydrogen by using controlled plasma.
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Affiliation(s)
- M Ahmadi
- Department of Physics, University of Liverpool, Liverpool, L69 7ZE, UK
| | - B X R Alves
- Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark
| | - C J Baker
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - W Bertsche
- School of Physics and Astronomy, University of Manchester, Manchester, M12 9PL, UK.,Cockcroft Institute, Sci-Tech Daresbury, Warrington, WA4 4AD, UK
| | - E Butler
- Physics Department, CERN, CH-1211, Geneve 23, Switzerland
| | - A Capra
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - C Carruth
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720-7300, USA
| | - C L Cesar
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil
| | - M Charlton
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - S Cohen
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - R Collister
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - S Eriksson
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - A Evans
- Department of Physics and Astronomy, University of Calgary, Calgary, AB, Canada, T2N 1N4
| | - N Evetts
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, V6T 1Z1
| | - J Fajans
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720-7300, USA
| | - T Friesen
- Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark.
| | - M C Fujiwara
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - D R Gill
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - A Gutierrez
- Department of Medical Physics and Biomedical Engineering, University College London, London, WC1E 6BT, UK
| | - J S Hangst
- Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark
| | - W N Hardy
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, V6T 1Z1
| | - M E Hayden
- Department of Physics, Simon Fraser University, Burnaby, BC, Canada, V5A 1S6
| | - C A Isaac
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - A Ishida
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Tokyo, 113-0033, Japan
| | - M A Johnson
- School of Physics and Astronomy, University of Manchester, Manchester, M12 9PL, UK.,Cockcroft Institute, Sci-Tech Daresbury, Warrington, WA4 4AD, UK
| | - S A Jones
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - S Jonsell
- Department of Physics, Stockholm University, SE-10691, Stockholm, Sweden
| | - L Kurchaninov
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - N Madsen
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK.
| | - M Mathers
- Department of Physics and Astronomy, York University, Toronto, ON, Canada, M3J 1P3
| | - D Maxwell
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - J T K McKenna
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - S Menary
- Department of Physics and Astronomy, York University, Toronto, ON, Canada, M3J 1P3
| | - J M Michan
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3.,École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015, Lausanne, Switzerland
| | - T Momose
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, V6T 1Z1
| | - J J Munich
- Department of Physics, Simon Fraser University, Burnaby, BC, Canada, V5A 1S6
| | - P Nolan
- Department of Physics, University of Liverpool, Liverpool, L69 7ZE, UK
| | - K Olchanski
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3
| | - A Olin
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada, V6T 2A3.,Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada, V8P 5C2
| | - P Pusa
- Department of Physics, University of Liverpool, Liverpool, L69 7ZE, UK
| | - C Ø Rasmussen
- Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark
| | - F Robicheaux
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA
| | - R L Sacramento
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil
| | - M Sameed
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK
| | - E Sarid
- Soreq NRC, Yavne, 81800, Israel
| | - D M Silveira
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil
| | - S Stracka
- Universita di Pisa and Sezione INFN di Pisa, Largo Pontecorvo 3, 56127, Pisa, Italy
| | - G Stutter
- Department of Physics and Astronomy, Aarhus University, DK-8000, Aarhus C, Denmark
| | - C So
- Department of Physics and Astronomy, University of Calgary, Calgary, AB, Canada, T2N 1N4
| | - T D Tharp
- Physics Department, Marquette University, P.O. Box 1881, Milwaukee, WI, 53201-1881, USA
| | - J E Thompson
- Department of Physics and Astronomy, York University, Toronto, ON, Canada, M3J 1P3
| | - R I Thompson
- Department of Physics and Astronomy, University of Calgary, Calgary, AB, Canada, T2N 1N4
| | - D P van der Werf
- Department of Physics, College of Science, Swansea University, Swansea, SA2 8PP, UK.,IRFU, CEA/Saclay, F-91191, Gif-sur-Yvette, France
| | - J S Wurtele
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720-7300, USA
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15
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Ahmadi M, Alves BXR, Baker CJ, Bertsche W, Butler E, Capra A, Carruth C, Cesar CL, Charlton M, Cohen S, Collister R, Eriksson S, Evans A, Evetts N, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Isaac CA, Ishida A, Johnson MA, Jones SA, Jonsell S, Kurchaninov L, Madsen N, Mathers M, Maxwell D, McKenna JTK, Menary S, Michan JM, Momose T, Munich JJ, Nolan P, Olchanski K, Olin A, Pusa P, Rasmussen CØ, Robicheaux F, Sacramento RL, Sameed M, Sarid E, Silveira DM, Stracka S, Stutter G, So C, Tharp TD, Thompson JE, Thompson RI, van der Werf DP, Wurtele JS. Observation of the 1S–2S transition in trapped antihydrogen. Nature 2016; 541:506-510. [DOI: 10.1038/nature21040] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 12/07/2016] [Indexed: 11/09/2022]
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16
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Butler K, Raingruber B, Butler E, Wilson M. Impact of Education on School-aged Children's Knowledge of and Participation in "The Choking Game". Res Rev J Nurs Health Sci 2016; 2:18-25. [PMID: 27504500 PMCID: PMC4975564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To better understand school-aged children's awareness of and attitudes about the Choking Game (TCG). To determine if education can increase awareness of the risk of injury when playing TCG and to determine if education can decrease interest in TCG participation. DESIGN Anonymous pre- and post-education surveys. SETTING Two middle/high schools; one in Utah and one in California. SUBJECTS 291 participants (163 in Utah, 128 in California) aged 9-18, 68% under age 15, 32% 15 and older; 65% white, 35% non-white; 52% female, 48% male. RESULTS 76% of participants knew about TCG, of those 62% heard about it at school. 32% knew someone who had played, and twelve (4%) had played, usually with others. Most frequently cited as reasons for participation were curiosity, peer pressure, and competition. School was the most common location for playing. In California education significantly increased risk awareness, and significant positive attitude changes were observed regarding interest in playing TCG. Utah participants also exhibited attitude changes in the desired direction (less interest in playing TCG, would warn friends, and realized it was not safe to stop breathing), although results were not statistically significant, possibly due to previous education and four recent and highly publicized TCG deaths in the community. CONCLUSION Results indicate that interactive, standardized, and skills-based education can increase student awareness of TCG risks and decrease interest in participation. Students reported that the schools were often where they first heard about TCG and where TCG was commonly played. Educators and associated health care professionals should therefore be encouraged to provide preventative education as part of school curricula.
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Affiliation(s)
- Kendall Butler
- University of California, Davis Medical Center, Sacramento, USA
- Justin Paul Butler Memorial Education Foundation, USA
| | | | - Eric Butler
- Justin Paul Butler Memorial Education Foundation, USA
| | - Machelle Wilson
- Clinical and Translational Science Center, Division of Biostatistics, University of California, Davis, Sacramento, California, USA
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17
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Yashar C, Scanderbeg D, Quiet C, Snyder M, Lyden M, Attai D, Komarnicky L, Reiff J, Nigh S, Pollock J, Butler E, Han B, Mantz C, Finkelstein S, Hong R, Kuske R. Outcomes for APBI With Strut-Based Brachytherapy: First 200 Accrued Patients (52-Month Median Follow-Up). Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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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18
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Amole C, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Butler E, Capra A, Cesar CL, Charlton M, Eriksson S, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Isaac CA, Jonsell S, Kurchaninov L, Little A, Madsen N, McKenna JTK, Menary S, Napoli SC, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Rasmussen CØ, Robicheaux F, Sarid E, Silveira DM, So C, Tharp TD, Thompson RI, van der Werf DP, Vendeiro Z, Wurtele JS, Zhmoginov AI, Charman AE. An experimental limit on the charge of antihydrogen. Nat Commun 2014; 5:3955. [PMID: 24892800 PMCID: PMC4279174 DOI: 10.1038/ncomms4955] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [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: 01/12/2014] [Accepted: 04/24/2014] [Indexed: 11/09/2022] Open
Abstract
The properties of antihydrogen are expected to be identical to those of hydrogen, and any differences would constitute a profound challenge to the fundamental theories of physics. The most commonly discussed antiatom-based tests of these theories are searches for antihydrogen-hydrogen spectral differences (tests of CPT (charge-parity-time) invariance) or gravitational differences (tests of the weak equivalence principle). Here we, the ALPHA Collaboration, report a different and somewhat unusual test of CPT and of quantum anomaly cancellation. A retrospective analysis of the influence of electric fields on antihydrogen atoms released from the ALPHA trap finds a mean axial deflection of 4.1 ± 3.4 mm for an average axial electric field of 0.51 V mm(-1). Combined with extensive numerical modelling, this measurement leads to a bound on the charge Qe of antihydrogen of Q=(-1.3 ± 1.1 ± 0.4) × 10(-8). Here, e is the unit charge, and the errors are from statistics and systematic effects.
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Affiliation(s)
- C Amole
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada M3J 1P3
| | - M D Ashkezari
- Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - M Baquero-Ruiz
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - W Bertsche
- 1] School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK [2] The Cockcroft Institute, Daresbury Laboratory, Warrington WA4 4AD, UK
| | - E Butler
- 1] Centre for Cold Matter, Imperial College, London SW7 2BW, UK [2] Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - A Capra
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada M3J 1P3
| | - C L Cesar
- Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil
| | - M Charlton
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - S Eriksson
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - J Fajans
- 1] Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA [2] Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Friesen
- Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - M C Fujiwara
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
| | - D R Gill
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
| | - A Gutierrez
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - J S Hangst
- 1] Physics Department, CERN, CH-1211 Geneva 23, Switzerland [2] Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - W N Hardy
- 1] Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1 [2] Canadian Institute of Advanced Research, Toronto, Ontario, Canada M5G 1ZA
| | - M E Hayden
- Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - C A Isaac
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - S Jonsell
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - L Kurchaninov
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
| | - A Little
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - N Madsen
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - J T K McKenna
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK
| | - S Menary
- Department of Physics and Astronomy, York University, Toronto, Ontario, Canada M3J 1P3
| | - S C Napoli
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - P Nolan
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK
| | - K Olchanski
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
| | - A Olin
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
| | - A Povilus
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - P Pusa
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK
| | - C Ø Rasmussen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - F Robicheaux
- Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA
| | - E Sarid
- Department of Physics, NRCN-Nuclear Research Center Negev, Beer Sheva IL-84190, Israel
| | - D M Silveira
- Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil
| | - C So
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - T D Tharp
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - R I Thompson
- Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - D P van der Werf
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK
| | - Z Vendeiro
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
| | - J S Wurtele
- 1] Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA [2] Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A I Zhmoginov
- 1] Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA [2] Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A E Charman
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA
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Dubey J, Dennis P, Verma S, Choudhary S, Ferreira L, Oliveira S, Kwok O, Butler E, Carstensen M, Su C. Epidemiology of toxoplasmosis in white tailed deer (Odocoileus virginianus): Occurrence, congenital transmission, correlates of infection, isolation, and genetic characterization of Toxoplasma gondii. Vet Parasitol 2014; 202:270-5. [DOI: 10.1016/j.vetpar.2014.01.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 01/02/2014] [Accepted: 01/12/2014] [Indexed: 10/25/2022]
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20
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Dubey JP, Jenkins MC, Ferreira LR, Choudhary S, Verma SK, Kwok OCH, Fetterer R, Butler E, Carstensen M. Isolation of viable Neospora caninum from brains of wild gray wolves (Canis lupus). Vet Parasitol 2014; 201:150-3. [PMID: 24522164 DOI: 10.1016/j.vetpar.2013.12.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/24/2013] [Accepted: 12/27/2013] [Indexed: 11/19/2022]
Abstract
Neospora caninum is a common cause of abortion in cattle worldwide. Canids, including the dog and the dingo (Canis familiaris), the coyote (Canis latrans), and the gray wolf (Canis lupus) are its definitive hosts that can excrete environmentally resistant oocysts in the environment, but also can act as intermediate hosts, harboring tissue stages of the parasite. In an attempt to isolate viable N. caninum from tissues of naturally infected wolves, brain and heart tissue from 109 wolves from Minnesota were bioassayed in mice. Viable N. caninum (NcWolfMn1, NcWolfMn2) was isolated from the brains of two wolves by bioassays in interferon gamma gene knockout mice. DNA obtained from culture-derived N. caninum tachyzoites of the two isolates were analyzed by N. caninum-specific Nc5 polymerase chain reaction and confirmed diagnosis. This is the first report of isolation of N. caninum from tissues of any wild canid host.
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Affiliation(s)
- J P Dubey
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA.
| | - M C Jenkins
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA
| | - L R Ferreira
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA
| | - S Choudhary
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA
| | - S K Verma
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA
| | - O C H Kwok
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA
| | - R Fetterer
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA
| | - E Butler
- Division of Wildlife, Minnesota Department of Natural Resources, 5463-C West Broadway, Forest Lake, MN 55025, USA
| | - M Carstensen
- Division of Wildlife, Minnesota Department of Natural Resources, 5463-C West Broadway, Forest Lake, MN 55025, USA
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21
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Yashar C, Butler E, Einck JP, Finkelstein SE, Graves YJ, Han B, Hong RL, Komarnicky LT, Lyden M, Mahalingam SB, Mantz CA, Nasr N, Nigh SS, Pollock J, Reiff JE, Scanderbeg D, Snyder MR, Strasser JF, Kuske RR. Abstract P5-14-06: Outcomes in 500 patients from a large, retrospective study of APBI with a strut-based breast brachytherapy applicator. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-14-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose/Objectives:
The SAVI Collaborative Research Group (SCRG) is a coalition of 14 institutions who have retrospectively compiled a large database of APBI patients treated with a strut-based brachytherapy device (SAVI). This report details the findings of statistical correlations between numerous dosimetric variables and cosmetic outcome.
Materials/Methods:
The SCRG study enrolled 1005 patients. A subset of patients with complete dosimetry and more than 1 year of follow-up by a radiation oncologist were analyzed for toxicity, cosmesis and recurrence/survival. Dosimetric parameters were tabulated for patients, including: V90, V95, V100, V150, V200, skin spacing (skin-bridge), maximum skin dose, tumor size, PTV-Eval volume and applicator size (model). Toxicity (e.g., telangiectasia, fibrosis, fat necrosis, seroma) were graded by physicians for patients with at least 1 year of follow-up (up to 6 years) using the CTCAE v3 Scale and fat necrosis using a simplified CTCAE scale (Grade 1 asymptomatic but seen on imaging, grade 2 symptomatic without intervention, & grade 3 required intervention).
Results:
Median follow up in this cohort was 29.2 months (range 2.4 to 72.2 months). Follow up was >2 yr and >3 yr for 323 and 191 subjects, respectively. Overall, in 500 subjects the late toxicity (grade ≥2) rates were less than 5% during follow up: telangiectasia 1.0%, fibrosis 4.1%, seroma 2.9% and fat necrosis 0.6%. Cosmesis was reported at various post-APBI follow-up visits following treatment completion (6, 12, 24, 36, 48 & 60+ months). For the 6 and 12 month intervals, 98% (n = 122) and 97% (n = 262) were reported excellent or good (E/G), respectively. At 24, 36, 48 and 60 month intervals, the E/G rates were 93% (n = 184), 90% (n = 98), 100% (n = 41) and 94% (n = 15), respectively. The raw rates of ipsilateral breast tumor recurrence (IBTR) and TR/MM were 1.6% (n = 8) and 1.2% (n = 6), respectively, in 500 patients with >1 year of follow up. The 1- and 2-year actuarial rates of overall survival and disease-free survival were: 1-year, 99.6% & 99.4%, resp. and 2-year, 99.2% & 96.7%.
Conclusions:
APBI treatment with the strut-based applicators was well-tolerated, demonstrated low toxicity rates, favorable cosmetic outcomes and excellent local control over the follow-up to date. Patients with challenging breast anatomy were successfully treated with strut-based devices.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-14-06.
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Affiliation(s)
- C Yashar
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - E Butler
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - JP Einck
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - SE Finkelstein
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - YJ Graves
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - B Han
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - RL Hong
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - LT Komarnicky
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - M Lyden
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - SB Mahalingam
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - CA Mantz
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - N Nasr
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - SS Nigh
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - J Pollock
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - JE Reiff
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - D Scanderbeg
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - MR Snyder
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - JF Strasser
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
| | - RR Kuske
- University of California San Diego, La Jolla, CA; Schiffler Cancer Center, Wheeling, WV; 21st Century Oncology Translational Research Center (TRC), Scottsdale, AZ; South Florida Radiation Oncology, Boynton Beach, FL; Virginia Hospital Center, Arlington, VA; Drexel University College of Medicine, Philadelphia, PA; BioStat International, Inc., Tampa, FL; The Christ Hospital Cancer Center, Cincinnati, OH; 21st Century Oncology, Fort Myers, FL; Northwest Community Hospital, Arlington Heights, IL; Christiana Care Health System, Newark, DE; Arizona Breast Cancer Specialists, Phoenix, AZ
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Dillamore IL, Butler E, Green D. Crystal Rotations under Conditions of Imposed Strain and the Influence of Twinning and Cross-Slip. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/030634568790443512] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Suri J, Rednam S, Teh B, Butler E, Paulino A. Subsequent Malignancies in Patients With Li-Fraumeni Syndrome Treated With Radiation Therapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.186] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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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Reiff J, Morcovescu S, Scanderbeg D, Butler E, Imhoff K. Dosimetric Analysis of 1007 Strut-Based APBI Treatments. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.598] [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: 11/16/2022]
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Dubey J, Jenkins M, Kwok O, Ferreira L, Choudhary S, Verma S, Villena I, Butler E, Carstensen M. Congenital transmission of Neospora caninum in white-tailed deer (Odocoileus virginianus). Vet Parasitol 2013; 196:519-22. [DOI: 10.1016/j.vetpar.2013.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 02/25/2013] [Accepted: 03/04/2013] [Indexed: 11/25/2022]
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Reiff J, Scanderbeg D, Morcovescu S, Butler E, Imhoff K. SU-D-108-06: Dosimetry of 108 Strut-Based Accelerated Partial Breast Irradiation (APBI) Treatments With Applicator Distance Less Than 7 Mm From Both the Skin and Ribs. Med Phys 2013. [DOI: 10.1118/1.4814016] [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: 11/07/2022] Open
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Amole C, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Butler E, Capra A, Cesar CL, Chapman S, Charlton M, Eriksson S, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Isaac CA, Jonsell S, Kurchaninov L, Little A, Madsen N, McKenna JTK, Menary S, Napoli SC, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Rasmussen CØ, Robicheaux F, Sarid E, Silveira DM, Stracka S, So C, Thompson RI, Turner M, van der Werf DP, Wurtele JS, Zhmoginov A. Autoresonant-spectrometric determination of the residual gas composition in the ALPHA experiment apparatus. Rev Sci Instrum 2013; 84:065110. [PMID: 23822381 DOI: 10.1063/1.4811527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Knowledge of the residual gas composition in the ALPHA experiment apparatus is important in our studies of antihydrogen and nonneutral plasmas. A technique based on autoresonant ion extraction from an electrostatic potential well has been developed that enables the study of the vacuum in our trap. Computer simulations allow an interpretation of our measurements and provide the residual gas composition under operating conditions typical of those used in experiments to produce, trap, and study antihydrogen. The methods developed may also be applicable in a range of atomic and molecular trap experiments where Penning-Malmberg traps are used and where access is limited.
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Affiliation(s)
- C Amole
- Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3, Canada
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Butler E, Whelan MJ, Ritz K, Sakrabani R, van Egmond R. The effect of triclosan on microbial community structure in three soils. Chemosphere 2012; 89:1-9. [PMID: 22551872 DOI: 10.1016/j.chemosphere.2012.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 03/22/2012] [Accepted: 04/03/2012] [Indexed: 05/31/2023]
Abstract
The application of sewage sludge to land can expose soils to a range of associated chemical toxicants. In this paper we explore the effects of the broad spectrum anti-microbial compound triclosan on the phenotypic composition of the microbial communities of three soils of contrasting texture (loamy sand, sandy loam and clay) using phospholipid fatty-acid (PLFA) analysis. Each soil type was dosed and subsequently re-dosed 6 weeks later with triclosan at five nominal concentrations in microcosms (10, 100, 500, 1000 mg kg(-1) and a zero-dose control). PLFA profiles were analysed using multivariate statistics focussing on changes in the soil phenotypic community structure. Additionally, ratios of fungal:bacterial PLFA indicators and cyclo:mono-unsaturated PLFAs (a common stress indicator) were calculated. It was hypothesised that triclosan addition would alter the community structure in each soil with a particular effect on the fungal:bacterial ratio, since bacteria are likely to be more susceptible to triclosan than fungi. It was also hypothesised that the PLFA response to re-dosing would be suppressed due to acclimation. Although the microbial community structure changed over the course of the experiment, the response was complex. Soil type and time emerged as the most important explanatory factors. Principal component analysis was used to detect phenotypic responses to different doses of triclosan in each soil. As expected, there was a significant increase in the fungal:bacterial ratio with triclosan dose especially in treatments with the highest nominal concentrations. Furthermore, the PLFA response to re-dosing was negligible in all soils confirming the acclimation hypothesis.
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Affiliation(s)
- E Butler
- Department of Environmental Science and Technology, School of Applied Sciences, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK
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Butler E, Whelan MJ, Sakrabani R, van Egmond R. Fate of triclosan in field soils receiving sewage sludge. Environ Pollut 2012; 167:101-109. [PMID: 22561896 DOI: 10.1016/j.envpol.2012.03.036] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 03/23/2012] [Accepted: 03/31/2012] [Indexed: 05/31/2023]
Abstract
The anti-microbial substance triclosan can partition to sewage sludge during wastewater treatment and subsequently transfer to soil when applied to land. Here, we describe the fate of triclosan in a one-year plot experiment on three different soils receiving sludge. Triclosan and methyl-triclosan concentrations were measured in soil samples collected monthly from three depths. A large fraction of triclosan loss appeared to be explained by transformation to methyl-triclosan. After 12 months less than 20% of the initial triclosan was recovered from each soil. However, the majority was recovered as methyl-triclosan. Most of the chemical recovered at the end of the experiment (both triclosan and methyl-triclosan) was still in the top 10 cm layer, although there was translocation to lower soil horizons in all three soils. Between 16.5 and 50.6% of the applied triclosan was unaccounted for after 12 months either as a consequence of degradation or the formation of non-extractable residues.
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Affiliation(s)
- E Butler
- Department of Environmental Science and Technology, School of Applied Sciences, Cranfield University, College Road, Cranfield, Bedfordshire MK43 0AL, UK.
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Amole C, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Capra A, Cesar CL, Charlton M, Deller A, Donnan PH, Eriksson S, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Humphries AJ, Isaac CA, Jonsell S, Kurchaninov L, Little A, Madsen N, McKenna JTK, Menary S, Napoli SC, Nolan P, Olchanski K, Olin A, Pusa P, Rasmussen CØ, Robicheaux F, Sarid E, Shields CR, Silveira DM, Stracka S, So C, Thompson RI, van der Werf DP, Wurtele JS. Resonant quantum transitions in trapped antihydrogen atoms. Nature 2012; 483:439-43. [PMID: 22398451 DOI: 10.1038/nature10942] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 02/07/2012] [Indexed: 11/09/2022]
Abstract
The hydrogen atom is one of the most important and influential model systems in modern physics. Attempts to understand its spectrum are inextricably linked to the early history and development of quantum mechanics. The hydrogen atom's stature lies in its simplicity and in the accuracy with which its spectrum can be measured and compared to theory. Today its spectrum remains a valuable tool for determining the values of fundamental constants and for challenging the limits of modern physics, including the validity of quantum electrodynamics and--by comparison with measurements on its antimatter counterpart, antihydrogen--the validity of CPT (charge conjugation, parity and time reversal) symmetry. Here we report spectroscopy of a pure antimatter atom, demonstrating resonant quantum transitions in antihydrogen. We have manipulated the internal spin state of antihydrogen atoms so as to induce magnetic resonance transitions between hyperfine levels of the positronic ground state. We used resonant microwave radiation to flip the spin of the positron in antihydrogen atoms that were magnetically trapped in the ALPHA apparatus. The spin flip causes trapped anti-atoms to be ejected from the trap. We look for evidence of resonant interaction by comparing the survival rate of trapped atoms irradiated with microwaves on-resonance to that of atoms subjected to microwaves that are off-resonance. In one variant of the experiment, we detect 23 atoms that survive in 110 trapping attempts with microwaves off-resonance (0.21 per attempt), and only two atoms that survive in 103 attempts with microwaves on-resonance (0.02 per attempt). We also describe the direct detection of the annihilation of antihydrogen atoms ejected by the microwaves.
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Affiliation(s)
- C Amole
- Department of Physics and Astronomy, York University, Toronto, Ontario, M3J 1P3, Canada
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Paulino A, Margolin J, Dreyer Z, Teh B, Butler E, Kamdar K, Blanco A, Chiang S. PET-CT Findings before, during, and after Chemotherapy: Implications on Radiotherapy (RT) Planning for Pediatric Hodgkin Lymphoma. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.235] [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: 10/16/2022]
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Teh B, Ishiyama H, Xu B, Ayala G, Wheeler T, Kadmon D, Paulino A, Blanco A, Thompson T, Butler E. Long-term Outcome of a Phase II Trial Combining in Situ Gene Therapy and Intensity Modulated Radiotherapy With or Without Hormonal Therapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.646] [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: 10/15/2022]
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Andresen GB, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Cesar CL, Chapman S, Charlton M, Deller A, Eriksson S, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Humphries AJ, Hydomako R, Jonsell S, Madsen N, Menary S, Nolan P, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, Silveira DM, So C, Storey JW, Thompson RI, van der Werf DP, Wurtele JS, Yamazaki Y. Centrifugal separation and equilibration dynamics in an electron-antiproton plasma. Phys Rev Lett 2011; 106:145001. [PMID: 21561196 DOI: 10.1103/physrevlett.106.145001] [Citation(s) in RCA: 2] [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: 11/06/2010] [Indexed: 05/30/2023]
Abstract
Charges in cold, multiple-species, non-neutral plasmas separate radially by mass, forming centrifugally separated states. Here, we report the first detailed measurements of such states in an electron-antiproton plasma, and the first observations of the separation dynamics in any centrifugally separated system. While the observed equilibrium states are expected and in agreement with theory, the equilibration time is approximately constant over a wide range of parameters, a surprising and as yet unexplained result. Electron-antiproton plasmas play a crucial role in antihydrogen trapping experiments.
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Affiliation(s)
- G B Andresen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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Andresen GB, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Carpenter PT, Cesar CL, Chapman S, Charlton M, Fajans J, Friesen T, Fujiwara MC, Gill DR, Hangst JS, Hardy WN, Hayden ME, Humphries AJ, Hurt JL, Hydomako R, Jonsell S, Madsen N, Menary S, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, Silveira DM, So C, Storey JW, Thompson RI, van der Werf DP, Wurtele JS, Yamazaki Y. Autoresonant excitation of antiproton plasmas. Phys Rev Lett 2011; 106:025002. [PMID: 21405235 DOI: 10.1103/physrevlett.106.025002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2010] [Indexed: 05/30/2023]
Abstract
We demonstrate controllable excitation of the center-of-mass longitudinal motion of a thermal antiproton plasma using a swept-frequency autoresonant drive. When the plasma is cold, dense, and highly collective in nature, we observe that the entire system behaves as a single-particle nonlinear oscillator, as predicted by a recent theory. In contrast, only a fraction of the antiprotons in a warm plasma can be similarly excited. Antihydrogen was produced and trapped by using this technique to drive antiprotons into a positron plasma, thereby initiating atomic recombination.
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Affiliation(s)
- G B Andresen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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Andresen GB, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Cesar CL, Chapman S, Charlton M, Deller A, Eriksson S, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Humphries AJ, Hydomako R, Jenkins MJ, Jonsell S, Jørgensen LV, Kurchaninov L, Madsen N, Menary S, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, Nasr SSE, Silveira DM, So C, Storey JW, Thompson RI, van der Werf DP, Wurtele JS, Yamazaki Y. Trapped antihydrogen. Nature 2010; 468:673-6. [DOI: 10.1038/nature09610] [Citation(s) in RCA: 265] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Accepted: 10/27/2010] [Indexed: 11/09/2022]
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Mai W, Blanco A, Smiedala M, Paulino A, Ishiyama H, Xu B, Butler E, Teh B. Long-term Outcome of a Moderate-Hypofractionated Intensity Modulated Radiation Therapy (IMRT) Approach Utilizing an Endorectal Balloon for Patients with Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Butler E, Hayman A, Paulino A, Blanco A, Teh B. Integrating Serial Pathways in Radiotherapy Treatment Planning-impact on the Decision Making in Delivering Stereotactic Radiosurgery (SRS) vs. Fractionated Stereotactic Radiotherapy (FSRT). Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1844] [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: 10/19/2022]
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Blanco A, Jones J, Hua R, Pino R, Nitsch P, Paulino A, Butler E, Bass B, Teh B. Is Multi-lumen Balloon (MLB) Superior to Single-lumen Balloon (SLB) Brachytherapy Catheter for Accelerated Partial Breast Irradiation (APBI)? Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.604] [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: 12/01/2022]
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Andresen GB, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Cesar CL, Chapman S, Charlton M, Fajans J, Friesen T, Fujiwara MC, Gill DR, Hangst JS, Hardy WN, Hayano RS, Hayden ME, Humphries A, Hydomako R, Jonsell S, Kurchaninov L, Lambo R, Madsen N, Menary S, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, Silveira DM, So C, Storey JW, Thompson RI, van der Werf DP, Wilding D, Wurtele JS, Yamazaki Y. Evaporative cooling of antiprotons to cryogenic temperatures. Phys Rev Lett 2010; 105:013003. [PMID: 20867439 DOI: 10.1103/physrevlett.105.013003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Indexed: 05/29/2023]
Abstract
We report the application of evaporative cooling to clouds of trapped antiprotons, resulting in plasmas with measured temperature as low as 9 K. We have modeled the evaporation process for charged particles using appropriate rate equations. Good agreement between experiment and theory is observed, permitting prediction of cooling efficiency in future experiments. The technique opens up new possibilities for cooling of trapped ions and is of particular interest in antiproton physics, where a precise CPT test on trapped antihydrogen is a long-standing goal.
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Affiliation(s)
- G B Andresen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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Zaky S, Lund M, May K, Hair B, Godette K, Butler E, Holmes L, O'Regan R, Landry J. The Triple Threat of Recurrence after Breast Conserving Therapy: Race, Receptor Status and Age. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-6045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
PurposeThe purpose of this study is to evaluate the impact of race, receptor status, and age on recurrence in patients undergoing breast conserving therapy (BCT).MethodsThe study population consisted of 510 primary invasive female breast cancer patients (excluding Stage IV), who resided in Fulton-Dekalb counties, in Atlanta, GA. These patients were diagnosed in 2003-2004 and treated within the Emory University Affiliated Hospitals. Data was obtained from the SEER cancer registry and augmented with medical record abstraction. Median follow-up was 3.5 and 4.4 years for recurrence and survival, respectively. Breast tumors were categorized as either triple negative (TN), which were estrogen, progesterone, and Her2-neu receptor negative tumors, versus (vs) non-TN, all other possible iterations. Women were evaluated for recurrence and death by TN status, race (African American (AA) vs Caucasian (C)), age, grade, tumor size, nodal status, socioeconomic status (SES), and receipt of chemotherapy. Both recurrence and survival were evaluated using chi-square, fisher exact, and cox regression analyses, p ≤ 0.05 significance.ResultsOf the 510 women, 193 received BCT. Of the 193, 92% completed radiation therapy and 45% received chemotherapy. Of the 184 women with known recurrence status, 11 recurred locally, 11 distantly, and none regionally. Compared to patients with non-TN tumors, TN patients had significantly higher local (13% vs 5%) and distant (16% vs 4%) recurrence rates. AA women had non-significant higher local recurrence than C women (7% vs 4%) and a higher distant recurrence rate (8% vs 3%). Finally, compared to women ≥50 years old, women age <50 had a significantly higher local and distant recurrence rates, (13% vs 4%) and (9% vs 5%) respectively.Unadjusted hazard ratios (HR) and 95% confidence intervals (CI) for any recurrence were calculated: TN status (HR=2.8, 95%CI 1.2-6.5), AA race (HR=2.3, 95% CI 0.9-5.8), age <50 years (HR= 2.3, 95%CI 1.0-5.1), grade 2/3 vs 1 (HR=2.3, 95%CI 1.0-5.1), and chemotherapy receipt (HR=3.0, 95%CI 1.2-7.4). Factors that were highly non-statistically significant included stage, tumor size, nodal status, and SES.In a multivariate model including receptor status, race, and age results were similar (HR = 2.5, 2.1, and 2.1 respectively). When tumor size, nodal status, grade, SES, and chemotherapy status were included in the previous model, only AA race independently predicted recurrence (HR=3.4, 95%CI 1.1-11.1), while TN status demonstrated a trend (HR=1.9, 95%CI 0.8-5.7).In survival analyses, neither TN status, AA race, nor age <50 years predicted outcome in any of the models described above. However, TN status did show a trend for significance (HR=2.6, 95%CI 0.8-9.0).ConclusionWe observed that there was a significant increase in local and distant metastatic recurrence rates after BCT among patients diagnosed with TN breast cancers, AA women, and women <50 years old. In contrast, we did not observe differences in survival, with the exception of TN breast cancers. This study suggests that among women who receive BCT, current standard radiation and systemic therapies may not be adequate in preventing recurrence among women with TN breast cancers, of AA race, or younger age.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 6045.
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Affiliation(s)
- S. Zaky
- 1Emory Winship Cancer Center, GA,
| | | | - K. May
- 2Emory Winship Cancer Center, GA,
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Andresen GB, Bertsche W, Bowe PD, Bray CC, Butler E, Cesar CL, Chapman S, Charlton M, Fajans J, Fujiwara MC, Gill DR, Hangst JS, Hardy WN, Hayano RS, Hayden ME, Humphries AJ, Hydomako R, Jørgensen LV, Kerrigan SJ, Kurchaninov L, Lambo R, Madsen N, Nolan P, Olchanski K, Olin A, Povilus AP, Pusa P, Sarid E, Seif El Nasr S, Silveira DM, Storey JW, Thompson RI, van der Werf DP, Yamazaki Y. Antiproton, positron, and electron imaging with a microchannel plate/phosphor detector. Rev Sci Instrum 2009; 80:123701. [PMID: 20073120 DOI: 10.1063/1.3266967] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A microchannel plate (MCP)/phosphor screen assembly has been used to destructively measure the radial profile of cold, confined antiprotons, electrons, and positrons in the ALPHA experiment, with the goal of using these trapped particles for antihydrogen creation and confinement. The response of the MCP to low energy (10-200 eV, <1 eV spread) antiproton extractions is compared to that of electrons and positrons.
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Paulino A, Mazloom A, South M, Teh B, Okcu F, Su J, Butler E, Chintagumpala M. Patterns of Failure after Craniospinal Irradiation, Intensity Modulated Radiation Therapy (IMRT) Boost and Chemotherapy for Medulloblastoma. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1158] [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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Butler E, Teh B, Bell B, South M, Smiedala M, Hinojosa J, McGary J, Grant W, Paulino A. Stereoscopic Visualization of Treatment Plans. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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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Andresen GB, Bertsche W, Bowe PD, Bray CC, Butler E, Cesar CL, Chapman S, Charlton M, Fajans J, Fujiwara MC, Funakoshi R, Gill DR, Hangst JS, Hardy WN, Hayano RS, Hayden ME, Hydomako R, Jenkins MJ, Jørgensen LV, Kurchaninov L, Lambo R, Madsen N, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, El Nasr SS, Silveira DM, Storey JW, Thompson RI, van der Werf DP, Wurtele JS, Yamazaki Y. Compression of antiproton clouds for antihydrogen trapping. Phys Rev Lett 2008; 100:203401. [PMID: 18518531 DOI: 10.1103/physrevlett.100.203401] [Citation(s) in RCA: 4] [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: 09/22/2007] [Indexed: 05/26/2023]
Abstract
Control of the radial profile of trapped antiproton clouds is critical to trapping antihydrogen. We report the first detailed measurements of the radial manipulation of antiproton clouds, including areal density compressions by factors as large as ten, by manipulating spatially overlapped electron plasmas. We show detailed measurements of the near-axis antiproton radial profile and its relation to that of the electron plasma.
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Affiliation(s)
- G B Andresen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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Fujiwara MC, Andresen GB, Bertsche W, Bowe PD, Bray CC, Butler E, Cesar CL, Chapman S, Charlton M, Fajans J, Funakoshi R, Gill DR, Hangst JS, Hardy WN, Hayano RS, Hayden ME, Humphries AJ, Hydomako R, Jenkins MJ, Jo̸rgensen LV, Kurchaninov L, Lai W, Lambo R, Madsen N, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, El Nasr SS, Silveira DM, Storey JW, Thompson RI, van der Werf DP, Wasilenko L, Wurtele JS, Yamazaki Y, Kanai Y, Yamazaki Y. Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN. ACTA ACUST UNITED AC 2008. [DOI: 10.1063/1.2977840] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Hayman L, Teh B, Paulino A, Butler E. A new Computer Assisted Strategy for Customizing Brain Avoidance Areas: Localizing Serial and Parallel Functional Circuits on Ct Overlays With 3D Reconstruction. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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McGary J, Grant W, Teh B, Paulino A, Butler E. Dosimetric Evaluation of the Brachial Plexus in the Treatment of Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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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Blackmon S, Teh B, Paulino A, Butler E. Computer Assisted Mediastinal Anatomy: The Radiological, Surgical, and Anatomical Compartments on Axial Overlays and Companion 3D Reconstructions. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1767] [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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Butler E, Paulino A, Blackmon S, Teh B. Reconciliation of 6 Lung Nodal Classifications Using Computer Overlays of 2D CT Images and 3D Reconstruction. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Teh B, Mai W, Caillouet J, Aguilar G, Aguilar-Cordova E, Butler E. 2188. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.593] [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: 11/24/2022]
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