49 research outputs found

    Water Quality Impacts of the Point of Diversion

    Get PDF
    14 pages. Contains references

    Water Quality Impacts of the Point of Diversion

    Get PDF
    14 pages. Contains references

    An international randomised controlled trial to compare TARGeted Intraoperative radioTherapy (TARGIT) with conventional postoperative radiotherapy after breast-conserving surgery for women with early-stage breast cancer (the TARGIT-A trial)

    Get PDF
    Background: Based on our laboratory work and clinical trials we hypothesised that radiotherapy after lumpectomy for breast cancer could be restricted to the tumour bed. In collaboration with the industry we developed a new radiotherapy device and a new surgical operation for delivering single-dose radiation to the tumour bed – the tissues at highest risk of local recurrence. We named it TARGeted Intraoperative radioTherapy (TARGIT). From 1998 we confirmed its feasibility and safety in pilot studies. Objective: To compare TARGIT within a risk-adapted approach with whole-breast external beam radiotherapy (EBRT) over several weeks. Design: The TARGeted Intraoperative radioTherapy Alone (TARGIT-A) trial was a pragmatic, prospective, international, multicentre, non-inferiority, non-blinded, randomised (1 : 1 ratio) clinical trial. Originally, randomisation occurred before initial lumpectomy (prepathology) and, if allocated TARGIT, the patient received it during the lumpectomy. Subsequently, the postpathology stratum was added in which randomisation occurred after initial lumpectomy, allowing potentially easier logistics and a more stringent case selection, but which needed a reoperation to reopen the wound to give TARGIT as a delayed procedure. The risk-adapted approach meant that, in the experimental arm, if pre-specified unsuspected adverse factors were found postoperatively after receiving TARGIT, EBRT was recommended. Pragmatically, this reflected how TARGIT would be practised in the real world. Setting: Thirty-three centres in 11 countries. Participants: Women who were aged ≥ 45 years with unifocal invasive ductal carcinoma preferably ≤ 3.5 cm in size. Interventions: TARGIT within a risk-adapted approach and whole-breast EBRT. Main outcome measures: The primary outcome measure was absolute difference in local recurrence, with a non-inferiority margin of 2.5%. Secondary outcome measures included toxicity and breast cancer-specific and non-breast-cancer mortality. Results: In total, 3451 patients were recruited between March 2000 and June 2012. The following values are 5-year Kaplan–Meier rates for TARGIT compared with EBRT. There was no statistically significant difference in local recurrence between TARGIT and EBRT. TARGIT was non-inferior to EBRT overall [TARGIT 3.3%, 95% confidence interval (CI) 2.1% to 5.1% vs. EBRT 1.3%, 95% CI 0.7% to 2.5%; p = 0.04; Pnon-inferiority = 0.00000012] and in the prepathology stratum (n = 2298) when TARGIT was given concurrently with lumpectomy (TARGIT 2.1%, 95% CI 1.1% to 4.2% vs. EBRT 1.1%, 95% CI 0.5% to 2.5%; p = 0.31; Pnon-inferiority = 0.0000000013). With delayed TARGIT postpathology (n = 1153), the between-group difference was larger than 2.5% and non-inferiority was not established for this stratum (TARGIT 5.4%, 95% CI 3.0% to 9.7% vs. EBRT 1.7%, 95% CI 0.6% to 4.9%; p = 0.069; Pnon-inferiority = 0.06640]. The local recurrence-free survival was 93.9% (95% CI 90.9% to 95.9%) when TARGIT was given with lumpectomy compared with 92.5% (95% CI 89.7% to 94.6%) for EBRT (p = 0.35). In a planned subgroup analysis, progesterone receptor (PgR) status was found to be the only predictor of outcome: hormone-responsive patients (PgR positive) had similar 5-year local recurrence with TARGIT during lumpectomy (1.4%, 95% CI 0.5% to 3.9%) as with EBRT (1.2%, 95% CI 0.5% to 2.9%; p = 0.77). Grade 3 or 4 radiotherapy toxicity was significantly reduced with TARGIT. Overall, breast cancer mortality was much the same between groups (TARGIT 2.6%, 95% CI 1.5% to 4.3% vs. EBRT 1.9%, 95% CI 1.1% to 3.2%; p = 0.56) but there were significantly fewer non-breast-cancer deaths with TARGIT (1.4%, 95% CI 0.8% to 2.5% vs. 3.5%, 95% CI 2.3% to 5.2%; p = 0.0086), attributable to fewer deaths from cardiovascular causes and other cancers, leading to a trend in reduced overall mortality in the TARGIT arm (3.9%, 95% CI 2.7% to 5.8% vs. 5.3%, 95% CI 3.9% to 7.3%; p = 0.099]. Health economic analyses suggest that TARGIT was statistically significantly less costly than EBRT, produced similar quality-adjusted life-years, had a positive incremental net monetary benefit that was borderline statistically significantly different from zero and had a probability of \u3e 90% of being cost-effective. There appears to be little uncertainty in the point estimates, based on deterministic and probabilistic sensitivity analyses. If TARGIT were given instead of EBRT in suitable patients, it might potentially reduce costs to the health-care providers in the UK by £8–9.1 million each year. This does not include environmental, patient and societal costs. Limitations: The number of local recurrences is small but the number of events for local recurrence-free survival is not as small (TARGIT 57 vs. EBRT 59); occurrence of so few events (\u3c 3.5%) also implies that both treatments are effective and any difference is unlikely to be large. Not all 3451 patients were followed up for 5 years; however, more than the number of patients required to answer the main trial question (n = 585) were followed up for \u3e 5 years. Conclusions: For patients with breast cancer (women who are aged ≥ 45 years with hormone sensitive invasive ductal carcinoma that is up to 3.5 cm in size), TARGIT concurrent with lumpectomy within a risk-adapted approach is as effective as, safer than and less expensive than postoperative EBRT. Future work: The analyses will be repeated with longer follow-up. Although this may not change the primary result, the larger number of events may confirm the effect on overall mortality and allow more detailed subgroup analyses. The TARGeted Intraoperative radioTherapy Boost (TARGIT-B) trial is testing whether or not a tumour bed boost given intraoperatively (TARGIT) boost is superior to a tumour bed boost given as part of postoperative EBRT. Trial registration: Current Controlled Trials ISRCTN34086741 and ClinicalTrials.gov NCT00983684. Funding: University College London Hospitals (UCLH)/University College London (UCL) Comprehensive Biomedical Research Centre, UCLH Charities, Ninewells Cancer Campaign, National Health and Medical Research Council and German Federal Ministry of Education and Research (BMBF). From September 2009 this project was funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 20, No. 73. See the NIHR Journals Library website for further project information

    An international randomised controlled trial to compare TARGeted Intraoperative radioTherapy (TARGIT) with conventional postoperative radiotherapy after breast-conserving surgery for women with early-stage breast cancer (the TARGIT-A trial)

    Full text link

    Prediction of the geotechnical properties of late quaternary Mississippi delta deposits

    No full text
    Includes bibliographical references (leaves 165-169)Mississippi delta sediments sampled from 141 boreholes drilled offshore of southeastern Louisiana were investigated in order to develop a method of predicting their geotechnical properties. Regression analysis and correlation analysis were used to establish the form and strength of predictive relationships. Many geotechnical properties appear to be related to depth of burial, but other factors such as grain size, degree of consolidation, age, rate of accumulation, and environment of deposition are also important. Samples from selected areas were grouped on the basis of grain size, as inferred from sediment descriptions, and on the basis of degree of consolidation, as inferred from shear strength profiles. A separate set of predictive equations was developed for the geotechnical properties of each group of samples. In nearly all cases, the correlation of each property with depth of burial and with selected other properties is much stronger for these smaller groups of samples than for all Mississippi delta samples as a group. The predictive relationships developed for groups of modern delta clays are similar but quite distinct from those developed for the older clays of the St. Bernard and Plaquemines deltas and for the clays deposited very slowly along the margins of developing deltas. This same pattern holds for the relationships developed to predict the geotechnical properties of the coarser-grained sediments. The Lambda method was used to determine the maximum load that sediments can withstand at selected sites within the study area. It was assumed that loads were transferred to the sediments by open-ended pipe piles driven to various depths. The results obtained using borehole profiles of geotechnical properties were compared with those obtained using predictive equations. For piles embedded to depths as great as 100 m, the error ranged from 4 to 15%

    Illuminating Cumberland Island: Interpreting a Heritage Trail using Mobile Electronic Technology

    No full text
    211 pagesThis document consists of four chapters. Beginning with Cumberland Island's first residents, the Tacatacuru, and ending with the National Park Service's acquisition of Cumberland Island National Seashore, Chapter One describes the history of Cumberland Island. Chapter Two discusses the history of interpretation through the lens of the National Park Service. This chapter also addresses current interpretive recommendations set forth by the National Park Service and investigates current interpretive practices and needs at Cumberland Island National Seashore. Chapter Three addresses the utilization of mobile electronic technology as an interpretive tool by investigating mobile electronic technology and mobile learning, the use of "gadgets" in interpretation, and the National Park Services guidelines for interpretive media development. Finally, Chapter Four establishes a framework for an interactive heritage trail that interprets Cumberland Island National Seashore's natural and cultural heritage. Three samples of mobile exhibits are included in Chapter Four as well

    Engineering properties of shallow sediments in West Delta and South Pass Outer Continental Shelf Lease Areas, offshore Louisiana

    No full text
    Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to [email protected], referencing the URI of the item.Bibliography: leaves 76-78.Not availabl

    Prediction of the geotechnical properties of late quaternary Mississippi delta deposits

    No full text
    Includes bibliographical references (leaves 165-169)Mississippi delta sediments sampled from 141 boreholes drilled offshore of southeastern Louisiana were investigated in order to develop a method of predicting their geotechnical properties. Regression analysis and correlation analysis were used to establish the form and strength of predictive relationships. Many geotechnical properties appear to be related to depth of burial, but other factors such as grain size, degree of consolidation, age, rate of accumulation, and environment of deposition are also important. Samples from selected areas were grouped on the basis of grain size, as inferred from sediment descriptions, and on the basis of degree of consolidation, as inferred from shear strength profiles. A separate set of predictive equations was developed for the geotechnical properties of each group of samples. In nearly all cases, the correlation of each property with depth of burial and with selected other properties is much stronger for these smaller groups of samples than for all Mississippi delta samples as a group. The predictive relationships developed for groups of modern delta clays are similar but quite distinct from those developed for the older clays of the St. Bernard and Plaquemines deltas and for the clays deposited very slowly along the margins of developing deltas. This same pattern holds for the relationships developed to predict the geotechnical properties of the coarser-grained sediments. The Lambda method was used to determine the maximum load that sediments can withstand at selected sites within the study area. It was assumed that loads were transferred to the sediments by open-ended pipe piles driven to various depths. The results obtained using borehole profiles of geotechnical properties were compared with those obtained using predictive equations. For piles embedded to depths as great as 100 m, the error ranged from 4 to 15%

    Historic Resource Survey Form : Knight Library

    No full text
    6 pagesEllis Fuller Lawrence’s original plan called for an auditorium to be built in this site, as the termination of the south axis and most important building in his beaux-arts plan. The axis extended from the auditorium to Dad’s Gates and beyond to the train station. However, the decision was made by President Hall to build a library in its place. The library was funded by the Public Works Administration (“PWA”) and the Works Progress Administration (“WPA”) program funds and is representative of the last surge of building before WWII. The library has been referred to as Oregon’s best example of integrated art and architecture. It is the most fully executed of Lawrence’s buildings incorporating sculpture, painting and metalwork, much done by students, graduates and professors. Much of the interior artwork is mostly intact. The building’s name was changed in 1994 to honor Phillip Knight, President and CEO of Nike, Inc and a University of Oregon alum. Knight Library, along with the Memorial Quad, was listed on the National Register of Historic Places on March 9, 1990. The original Lawrence building from 1937 was nominated and listed and the 1950 and 1966 additions were listed as non-contributing. At the time the National Park Service accepted the building, the 1994 addition had yet to be built. The library was listed under criteria A and C: it was listed under A because it was funded by Public Works Administration funds and listed under C as a significant element in Lawrence’s Beaux Arts plan and for the fine craftsmanship displayed on the exterior and interior of the library. The original portion of the building is listed in the nomination as Beaux Arts Eclecticism while the additions are Modernistic. Some elements of the original design reflect a “moderne” character including the decorative motifs, and functional elements such as entrance lanterns

    Historic Resource Survey Form : Johnson Hall

    No full text
    4 pagesJohnson Hall houses the University's administrative offices, including the Office of the President and the Provost. Influenced by Beaux-arts and classical revival styles, this brick building, accented with terra cotta tiles, has a symmetrical design plan and a rectangular footprint. The north entry sidewalk features a center "O" topiary. From this side, the projecting center bay's two-story portico is supported by six concrete Ionic columns that are covered with terra cotta tiles. The entablature above the portico is decorated with dentil molding and other terra cotta tile decoration, such as the University of Oregon seal in the center. The terra cotta cornice and frieze continue along the entire perimeter of the building. The south entrance of Johnson Hall features a cast iron and glass awning described in Knighton's plans as "Marquise Metal." The east, west and south sides of Johnson Hall's windows are accented with green fabric awnings. These awnings are not original to the building and it is unknown if they were included in the original design intent, but they are evident in early photographs. Completed on November 8, 1915, the Administration Building, as it was originally known, was designed by William C. Knighton, Oregon’s State Architect. Costing over $100,000, it was campus’ most expensive building constructed at the time. In 1918 the Administration Building was renamed Johnson Hall after John Wesley Johnson, the first president of the University of Oregon. Ellis Lawrence is somewhat connected to this building. He advised Knighton on the design and President Campbell referred to him as "advisory architect." He also advised the University on various issues regarding this building including acoustical problems and maintaining the terra cotta "Administration Building" plaque when the building's name was changed. The placement of Johnson Hall between the Lawrence campus building projects (i.e., the Women’s Quad, Museum of Art, and Knight Library), and the Old Campus Quad, which contain the University’s first buildings, is symbolic because it stands as a transition between these two significant periods in University history. Johnson Hall’s presence, building technology, and sheer expense symbolized the University’s transition into a new era of progressive change as exemplified in the University's subsequent growth and ambitious building projects. Its applied terra cotta decoration, architectural form, and construction of reinforced concrete make this building unique to the campus at the time of its construction. Originally, Johnson Hall featured the Guild Theater and an impressive Povey Brothers stained glass skylight that covered the entire center of the second floor. The theatre was converted to office space and the glass skylights were removed when Robinson Theater was completed in 1949. The glass panels were dispersed around campus and can now be found in Johnson Hall Conference Room, Lawrence Hall, and Erb Memorial Union. Johnson Hall was the site of various student-led protests during the Vietnam Era. In fact, UO students took over Johnson Hall in 1970. Subsequently, sixty-one students were arrested. In 1984 the architectural firm of Brockmeyer McDonnell executed an exterior restoration of Johnson Hall. Among the projects included in this restoration were the removal and replacement of the roof, repair of terra cotta tiles, repointing of brickwork, resealing of windows, and patching of plasterwork. In 2004, the Project Management Group and UO Facility Services performed a historical improvements study and had several recommendations
    corecore