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Shah T, O’Keefe A, Gao C, Manning T, Peacocke A, Cashman S, Shakir T, Nambiar A, Lamb B, Cumberbatch M, Pickard R, Erotocritou P, Smith D, Kasivisvanathan V. A multi-centre cohort study evaluating the role of inflammatory markers in patient’s presenting with acute ureteric colic (MIMIC). ACTA ACUST UNITED AC 2017. [DOI: 10.1016/s1569-9056(17)30474-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tan WS, Sridhar A, Ellis G, Lamb B, Goldstraw M, Nathan S, Hines J, Cathcart P, Briggs T, Kelly J. Analysis of open and intracorporeal robotic assisted radical cystectomy shows no significant difference in recurrence patterns and oncological outcomes. Urol Oncol 2016; 34:257.e1-9. [PMID: 26968561 DOI: 10.1016/j.urolonc.2016.02.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/03/2016] [Accepted: 02/06/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To report and compare early oncological outcomes and cancer recurrence sites among patients undergoing open radical cystectomy (ORC) and robotic-assisted radical cystectomy with intracorporeal urinary diversion (iRARC). METHODS AND MATERIALS A total of 184 patients underwent radical cystectomy for bladder cancer. ORC cases (n = 94) were performed between June 2005 and July 2014 while iRARC cases (n = 90) were performed between June 2011 and July 2014. Primary outcome was recurrence free survival (RFS). Secondary outcomes were sites of local and metastatic recurrence, cancer specific survival (CSS) and overall survival (OS). RESULTS Median follow-up for patients without recurrence was 33.8 months (interquartile range [IQR]: 20.5-45.4) for ORC; and 16.1 months (IQR: 11.2-27.0) for iRARC. No significant difference in age, sex, precystectomy T stage, precystectomy grade, or lymph node yield between ORC and iRARC was observed. The ORC cohort included more patients with≥pT2 (64.8% ORC vs. 38.9% iRARC) but fewer pT0 status (8.5% ORC vs.vs. 22.2% iRARC) due to lower preoperative chemotherapy use (22.3% ORC vs. 34.4% iRARC). Positive surgical margin rate was significantly higher in the ORC cohort (19.3% vs. 8.2%; P = 0.042). Kaplan-Meir analysis showed no significant difference in RFS (69.5% ORC vs. 78.8% iRARC), cancer specific survival (80.9% ORC vs. 84.4% iRARC), or OS (73.5% ORC vs.vs. iRARC 83.8%) at 24 months. Cox regression analysis showed RFS, cancer specific survival and OS were not influenced by cystectomy technique. No significant difference between local and metastatic RFS between ORC and iRARC was observed. CONCLUSION This study has found no difference in recurrence patterns or oncological outcomes between ORC and iRARC. Recurrent metastatic sites vary, but are not related to surgical technique.
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Angelon-Gaetz KA, Richardson DB, Lipton DM, Marshall SW, Lamb B, LoFrese T. The effects of building-related factors on classroom relative humidity among North Carolina schools participating in the 'Free to Breathe, Free to Teach' study. INDOOR AIR 2015; 25:620-30. [PMID: 25515546 PMCID: PMC4470893 DOI: 10.1111/ina.12176] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 12/11/2014] [Indexed: 05/22/2023]
Abstract
UNLABELLED Both high and low indoor relative humidity (RH) directly impact Indoor Air Quality (IAQ), an important school health concern. Prior school studies reported a high prevalence of mold, roaches, and water damage; however, few examined associations between modifiable classroom factors and RH, a quantitative indicator of dampness. We recorded RH longitudinally in 134 North Carolina classrooms (n = 9066 classroom-days) to quantify the relationships between modifiable classroom factors and average daily RH below, within, or above levels recommended to improve school IAQ (30-50% or 30-60% RH). The odds of having high RH (>60%) were 5.8 [95% Confidence Interval (CI): 2.9, 11.3] times higher in classrooms with annual compared to quarterly heating, ventilating, and air-conditioning (HVAC) system maintenance and 2.5 (95% CI: 1.5, 4.2) times higher in classrooms with HVAC economizers compared to those without economizers. Classrooms with direct-expansion split systems compared to chilled water systems had 2.7 (95% CI: 1.7, 4.4) times higher odds of low RH (<30%). When unoccupied, classrooms with thermostat setbacks had 3.7 (95% CI: 1.7, 8.3) times the odds of high RH (>60%) of those without setbacks. This research suggests actionable decision points for school design and maintenance to prevent high or low classroom RH. PRACTICAL IMPLICATIONS This study combines longitudinal measurements of classroom relative humidity with school inspection data from several schools to describe the problem of relative humidity control in schools. Our findings on how maintenance and mechanical factors affect classroom humidity provide suggestions on building operations policies and heating, ventilating, and air-conditioning (HVAC) design considerations that may improve classroom relative humidity control.
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Blach O, Lamb B, Gnanapragasam V, Emberton M, Pickard R. Advancing research capacity within British urology – a joint BAUS and RCS England two-day workshop. JOURNAL OF CLINICAL UROLOGY 2015. [DOI: 10.1177/2051415815574176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Patel K, Lamb B, Pathak S, Peters J. Vasitis: the need for imaging and clinical acumen. BMJ Case Rep 2014; 2014:bcr-2014-206994. [PMID: 25326573 DOI: 10.1136/bcr-2014-206994] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 55-year-old man presented with an acute, painful groin mass with signs of sepsis. On examination, it was difficult to tell whether this was a strangulated hernia or a testicular torsion. Biochemical investigations revealed raised inflammatory markers and radiological investigations showed a rare inflammatory condition, vasitis, which could be mistaken for various other 'surgical' groin masses. This case report summarises the importance of realising the vast differential diagnoses that come with acute groin masses and how imaging can prevent unnecessary surgery.
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Lamb B, Lettin J, Malik S, Graham S. MP73-18 INCIDENCE OF RAISED SERUM CREATININE IN PATIENTS ADMITTED WITH UNILATERAL ACUTE URETERIC COLIC. J Urol 2014. [DOI: 10.1016/j.juro.2014.02.2371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Jalil R, Lamb B, Russ S, Sevdalis N, Green JS. The cancer multi-disciplinary team from the coordinators' perspective: results from a national survey in the UK. BMC Health Serv Res 2012; 12:457. [PMID: 23237502 PMCID: PMC3539898 DOI: 10.1186/1472-6963-12-457] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 12/10/2012] [Indexed: 11/26/2022] Open
Abstract
Background The MDT-Coordinators’ role is relatively new, and as such it is evolving. What is apparent is that the coordinator’s work is pivotal to the effectiveness and efficiency of an MDT. This study aimed to assess the views and needs of MDT-coordinators. Methods Views of MDT-coordinators were evaluated through an online survey that covered their current practice and role, MDT chairing, opinions on how to improve MDT meetings, and coordinators’ educational/training needs. Results 265 coordinators responded to the survey. More than one third of the respondents felt that the job plan does not reflect their actual duties. It was reported that medical members of the MDT always contribute to case discussions. 66.9% of the respondents reported that the MDTs are chaired by Surgeons. The majority reported having training on data management and IT skills but more than 50% reported that they felt further training is needed in areas of Oncology, Anatomy and physiology, audit and research, peer-review, and leadership skills. Conclusions MDT-Coordinators’ role is central to the care of cancer patients. The study reveals areas of training requirements that remain unmet. Improving the resources and training available to MDT-coordinators can give them an opportunity to develop the required additional skills and contribute to improved MDT performance and ultimately cancer care. Finally, this study looks forward to the impact of the recent launch of a new e-learning training programme for MDT coordinators and discusses implications for future research.
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Taylor C, Brown K, Lamb B, Harris J, Sevdalis N, Green JSA. Developing and testing TEAM (Team Evaluation and Assessment Measure), a self-assessment tool to improve cancer multidisciplinary teamwork. Ann Surg Oncol 2012; 19:4019-27. [PMID: 22820934 DOI: 10.1245/s10434-012-2493-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Indexed: 12/24/2022]
Abstract
BACKGROUND Cancer multidisciplinary teams (MDTs) are well established worldwide and are an expensive resource yet no standardised tools exist to measure performance. We aimed to develop and test an MDT self-assessment tool underpinned by literature review and consensus from over 2000 UK MDT members about the "characteristics of an effective MDT." METHODS Questionnaire items relating to all characteristics of MDTs (particularly Leadership and Chairing; Teamworking and Culture; Patient-centred care; Clinical decision-making process; and Organisation and administration during meetings) were developed by an expert panel. Acceptability, feasibility and psychometric properties were tested by online completion of the questionnaire by 23 MDTs from 4 UK NHS Trusts followed by interviews with 74 team members including members from all teams and nonresponders. 10 of the MDTs also completed questionnaires that directly translated each characteristic to an item (for the five domains above) to test content validity. RESULTS A total of 47 items were created, each rated for agreement on a 5-point scale. A total of 329 (52 %) of 637 team members completed the questionnaire, including representation from medical, nursing and clerical MDT members. Responses correlated well with domain-specific questionnaires (r > 0.67, p = 0.01), most domain-scales had acceptable internal consistency (Cronbach alpha > 0.60), and good item discrimination (majority of items r < 0.20). Team members were positive about its value. CONCLUSIONS Self-assessment of team performance using this tool may support MDT development.
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Marzouk S, Mecci AJ, Gan JH, Allchorne P, Lamb B, Green J. Does the 2 week wait referral process have an impact on bladder cancer prognosis? Int J Surg 2012. [DOI: 10.1016/j.ijsu.2012.06.528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Jalil R, Lamb B, Sevdalis N, Green J. The multi-disciplinary team (MDT) from the coordinators' prospective. Report of the MDT-coordinators' survey. Int J Surg 2012. [DOI: 10.1016/j.ijsu.2012.06.403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lamb B, Jalil R, Shah S, Green J, Allchorne P, Sevdalis N. Urology cancer patients' views on multidisciplinary team (MDT) working. A pilot study. Int J Surg 2012. [DOI: 10.1016/j.ijsu.2012.06.517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lamb B, Payne H, Vincent C, Sevdalis N, Green JSA. The role of oncologists in multidisciplinary cancer teams in the UK: an untapped resource for team leadership? J Eval Clin Pract 2011; 17:1200-6. [PMID: 20666886 DOI: 10.1111/j.1365-2753.2010.01507.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND AIMS In the UK, cancer care is managed via multidisciplinary teams (MDT). Core members of these teams are typically surgeons, oncologists, radiologists, pathologists and clinical nurse specialists (with other health care professionals potentially present). Good teamwork, including team communication and leadership, has been shown to be a prerequisite for safe care delivery in other health care contexts, but cancer MDT team working processes are yet to be fully explored. This study aimed to assess the self-perceived contribution of oncologists to MDTs, with emphasis on their potential role as team leaders. METHODS Data were collected at the British Uro-oncology Group 6th Annual Meeting (Sep 11-12 2009, York, UK). Respondents completed various items related to their perceived contribution to MDTs, aspects of current and potential MDT leadership, team decision making in these meetings, and also demographic information. RESULTS Seventy-seven oncologists attended the meeting, of whom 61 fully completed the survey (response rate 79%). Oncologists reported that their contribution to the MDT discussion carries equal weight to those of surgeons, radiologists and pathologists. Whereas 83% of respondents reported that MDT chairmanship could rotate, only 39% reported that it does in their own MDTs. More than 90% of respondents thought that oncologists (clinical or medical) could chair these meetings, but only 25% of them had ever chaired their own MDT. CONCLUSIONS Despite a high level of contribution to MDTs and the respect of their colleagues, oncologists are not taking leadership roles within MDTs at the level that they expect. This study raises the question of whether a re-evaluation the leadership of MDTs is required with clinicians from a variety of specialities being given opportunities to develop skills necessary to lead cancer MDTs and improve team performance and ultimately cancer care.
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Eleftheriadou V, Whitton ME, Gawkrodger DJ, Batchelor J, Corne J, Lamb B, Ersser S, Ravenscroft J, Thomas KS. Future research into the treatment of vitiligo: where should our priorities lie? Results of the vitiligo priority setting partnership. Br J Dermatol 2011; 164:530-6. [PMID: 21128908 PMCID: PMC3084501 DOI: 10.1111/j.1365-2133.2010.10160.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND Vitiligo is the most frequent depigmentation disorder of the skin and is cosmetically and psychologically devastating. A recently updated Cochrane systematic review 'Interventions for vitiligo' showed that the research evidence for treatment of vitiligo is poor, making it difficult to make firm recommendations for clinical practice. OBJECTIVES To stimulate and steer future research in the field of vitiligo treatment, by identifying the 10 most important research areas for patients and clinicians. METHODS A vitiligo priority setting partnership was established including patients, healthcare professionals and researchers with an interest in vitiligo. Vitiligo treatment uncertainties were gathered from patients and clinicians, and then prioritized in a transparent process, using a methodology advocated by the James Lind Alliance. RESULTS In total, 660 treatment uncertainties were submitted by 461 participants. These were reduced to a list of the 23 most popular topics through an online/paper voting process. The 23 were then prioritized at a face-to-face workshop in London. The final list of the top 10 treatment uncertainties included interventions such as systemic immunosuppressants, topical treatments, light therapy, melanocyte-stimulating hormone analogues, gene therapy, and the impact of psychological interventions on the quality of life of patients with vitiligo. CONCLUSIONS The top 10 research areas for the treatment of vitiligo provide guidance for researchers and funding bodies, to ensure that future research answers questions that are important both to clinicians and to patients.
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Whittle A, Patki P, Lamb B, Irshad S, Bycroft J, Green J. A two year prospective audit of emergency urological admissions, investigations and training opportunities at a district general hospital. Int J Surg 2011. [DOI: 10.1016/j.ijsu.2011.07.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lamb B, Sevdalis N, Taylor C, Green J. Does one size fit all? Cancer MDT working across different tumour types. Int J Surg 2011. [DOI: 10.1016/j.ijsu.2011.07.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Arora S, Lamb B, Undre S, Kneebone R, Darzi A, Sevdalis N. Framework for incorporating simulation into urology training. BJU Int 2010; 107:806-810. [DOI: 10.1111/j.1464-410x.2010.09563.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Talsania N, Lamb B, Bewley A. Vitiligo is more than skin deep: a survey of members of the Vitiligo Society. Clin Exp Dermatol 2010; 35:736-9. [DOI: 10.1111/j.1365-2230.2009.03765.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Decisions in surgical oncology are increasingly being made by multi-disciplinary teams (MDTs). Although MDTs have been widely accepted as the preferred model for cancer service delivery, the process of decision making has not been well described and there is little evidence pointing to the ideal structure of an MDT. Performance in surgery has been shown to depend on non-technical skills, such as decision making, as well as patient factors and the technical skills of the healthcare team. Application of this systems approach to MDT working allows the identification of factors that affect the quality of decision making for cancer patients. In this article we review the literature on decision making in surgical oncology and by drawing from the systems approach to surgical performance we provide a framework for understanding the process of decision making in MDTs. Technical factors that affect decision making include the information about patients, robust ICT and video-conferencing equipment, a minimum dataset with expert review of radiological and pathological information, implementation and recording of the MDTs decision. Non-technical factors with an impact on decision making include attendance of team members at meetings, leadership, teamwork, open discussion, consensus on decisions and communication with patients and primary care. Optimising these factors will strengthen the decision making process and raise the quality of care for cancer patients.
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Lamb B. Quality improvement for doctors – it's essential. Med Chir Trans 2009; 102:310. [DOI: 10.1258/jrsm.2009.090199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Reeves RH, Cabin DE, Lamb B. Introduction of large insert DNA into mammalian cells and embryos. ACTA ACUST UNITED AC 2008; Chapter 5:Unit 5.12. [PMID: 18428286 DOI: 10.1002/0471142905.hg0512s30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This unit provides a set of protocols for introducing large insert DNA into cultured mammalian cells and embryos. Two different methods, spheroplast fusion and lipofection, are described for effecting transfer of YACs or gel-purified YAC DNA into cells. Additional protocols discuss preparing and transferring BACs into cells by lipofection and into embryos by microinjection.
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Rolka DB, Narayan KM, Thompson TJ, Goldman D, Lindenmayer J, Alich K, Bacall D, Benjamin EM, Lamb B, Stuart DO, Engelgau MM. Performance of recommended screening tests for undiagnosed diabetes and dysglycemia. Diabetes Care 2001; 24:1899-903. [PMID: 11679454 DOI: 10.2337/diacare.24.11.1899] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To evaluate the performance, in settings typical of opportunistic and community screening programs, of screening tests currently recommended by the American Diabetes Association (ADA) for detecting undiagnosed diabetes. RESEARCH DESIGN AND METHODS Volunteers aged > or =20 years without previously diagnosed diabetes (n = 1,471) completed a brief questionnaire and underwent recording of postprandial time and measurement of capillary blood glucose (CBG) with a portable sensor. Participants subsequently underwent a 75-g oral glucose tolerance test; fasting serum glucose (FSG) and 2-h postload serum glucose (2-h SG) concentrations were measured. The screening tests we studied included the ADA risk assessment questionnaire, the recommended CBG cut point of 140 mg/dl, and an alternative CBG cut point of 120 mg/dl. Each screening test was evaluated against several diagnostic criteria for diabetes (FSG > or =126 mg/dl, 2-h SG > or =200 mg/dl, or either) and dysglycemia (FSG > or =110 mg/dl, 2-h SG > or =140 mg/dl, or either). RESULTS Among all participants, 10.7% had undiagnosed diabetes (FSG > or =126 or 2-h SG > or =200 mg/dl), 52.1% had a positive result on the questionnaire, 9.5% had CBG > or =140 mg/dl, and 18.4% had CBG > or =120 mg/dl. The questionnaire was 72-78% sensitive and 50-51% specific for the three diabetes diagnostic criteria; CBG > or =140 mg/dl was 56-65% sensitive and 95-96% specific, and CBG > or =120 mg/dl was 75-84% sensitive and 86-90% specific. CBG > or =120 mg/dl was 44-62% sensitive and 89-90% specific for dysglycemia. CONCLUSIONS Low specificity may limit the usefulness of the ADA questionnaire. Lowering the cut point for a casual CBG test (e.g., to 120 mg/dl) may improve sensitivity and still provide adequate specificity.
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Hurst JM, Barket DJ, Herrera-Gomez O, Couch TL, Shepson PB, Faloona I, Tan D, Brune W, Westberg H, Lamb B, Biesenthal T, Young V, Goldstein A, Munger JW, Thornberry T, Carroll MA. Investigation of the nighttime decay of isoprene. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900727] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Westberg H, Lamb B, Hafer R, Hills A, Shepson P, Vogel C. Measurement of isoprene fluxes at the PROPHET site. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900735] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Barna M, Lamb B, Westberg H. Modeling the effects of VOC/NOx emissions on ozone synthesis in the cascadia airshed of the Pacific Northwest. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2001; 51:1021-1034. [PMID: 15658221 DOI: 10.1080/10473289.2001.10464330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A modeling system consisting of MM5, Calmet, and Calgrid was used to investigate the sensitivity of anthropogenic volatile organic compound (VOC) and oxides of nitrogen (NOx) reductions on ozone formation within the Cascadia airshed of the Pacific Northwest. An ozone episode that occurred on July 11-14, 1996, was evaluated. During this event, high ozone levels were recorded at monitors downwind of Seattle, WA, and Portland, OR, with one monitor exceeding the 1 hr/120 ppb National Ambient Air Quality Standard (at 148 ppb), and six monitors above the proposed 8 hr/80 ppb standard (at 82-130 ppb). For this particular case, significant emissions reductions, between 25 and 75%, would be required to decrease peak ozone concentrations to desired levels. Reductions in VOC emissions alone, or a combination of reduced VOC and NOx emissions, were generally found to be most effective; reducing NOx emissions alone resulted in increased ozone in the Seattle area. When only VOC emissions were curtailed, ozone reductions occurred in the immediate vicinity of densely populated areas, while NOx reductions resulted in more widespread ozone reductions.
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Westberg H, Lamb B, Johnson KA, Huyler M. Inventory of methane emissions from U.S. cattle. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900808] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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