Evolution of the fish sorting and debris handling system at the Swift Hydroelectric Project Floating Surface Collector for juvenile salmonids

The Swift Floating Surface Collector (FSC) began operation in 2012 and was the third of eight large scale surface collectors installed in the Pacific Northwest region of the United States since 2008. Downstream fish collection and sorting at Swift Dam was a key component of the Lewis River reintroduction program that reestablished passage of anadromous salmonids past PacifiCorp’s three large hydropower dams (510 MW Lewis River Hydroelectric Project) that blocked fish passage beginning in 1931. The Swift FSC floats to accommodate reservoir fluctuation of 90 feet and attracts fish with pumped surface flows of 600 cfs. After passing through a large V-screen, fish and debris enter a fish separator system designed to separate fish by girth into fry (≤3” long), smolts (≤10” long), and adult fish (\u3e10”). The separator system was designed as an evolution of similar systems studied on the Snake, Columbia, Yakima, and Cowlitz Rivers, and was optimized on lessons learned and to accommodate space constraints on the floating structure. Swift dam is the most upstream project on the Lewis river, so all flow entering the collector is unregulated and carries a heavy debris load. Operations staff are finding this system collects more debris than any of the other new FSC’s in the region. Several modifications to provide better debris exclusion, handling, and processing have been made and others are currently under design. These modifications also improve fish attraction, sorting, collection, and safety conditions for the operational staff. This presentation will review the original design goals and details, improvements made through 2017, highlight a new system currently under design planned to be operational in late 2018, and describe other ideas under consideration for adaptive management implementation. Lessons learned can be utilized at other downstream fish collectors with high debris loading

‘“For Without Vanity I’m Better Known”: Restoration Actors and Metatheatre on the London Stage.’

Published version of article deposited in accordance with SHERPA Romeo guidelines. © Cambridge University Press, 2011

Fabric Philosophy: The “Texture” of Theatricality and Performativity

As metaphors of human existence, the idioms of theatricality and performativity both fluctuate between values of novelty and normativity: theatricality, between the essence of an art form and a cultural value variously opposed or embraced, performativity, between doing and dissimulation. To revert from drawing too sharp boundaries, either between the two phenomena or between their cognate art forms and everyday life, the article pursues to analyse them in “textural” terms specifically inspired by Tim Ingold’s ecological anthropology and Stephen C. Pepper’s philosophical pragmatism from the 1940s. Where Ingold’s ecology of lines admits to “no insides or outsides,” “trailing loose ends in every direction,” Pepper’s “contextualistic world” of events admits “no top nor bottom” to its strands and textures. After introducing Ingold’s networks of connected objects and meshworks of interwoven lines as shorthand terms for specifically theatrical and performative textures, their various dynamics are considered in terms of absorption and abstraction: on a global scale – I briefly consider the Anthropos(c)ene as theatrum mundi – seeing all the world as a stage indeed depends on something of a theatrical inversion of its lines of becoming. From the tensions of novelty and normativity, noted above, what emerges is a fabric philosophy of weaving and zooming between overlapping textures: if the performative names a dramaturgy of becoming, then the theatrical provides an optic for its analysis

Association of Preoperative Risk Factors With Malignancy in Pancreatic Mucinous Cystic Neoplasms: A Multicenter Study

Pancreatic mucinous cystic neoplasms (MCNs) harbor malignant potential, and current guidelines recommend resection. However, data are limited on preoperative risk factors for malignancy (adenocarcinoma or high-grade dysplasia) occurring in the setting of an MCN

The diagnosis of pancreatic mucinous cystic neoplasm and associated adenocarcinoma in males: An eight‐institution study of 349 patients over 15 years

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/137278/1/jso24582_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/137278/2/jso24582.pd

The Role of Liver-Directed Surgery in Patients With Hepatic Metastasis From Primary Breast Cancer: a Multi-Institutional Analysis

BACKGROUND: Data on surgical management of breast liver metastasis are limited. We sought to determine the safety and long-term outcome of patients undergoing hepatic resection of breast cancer liver metastases (BCLM). METHODS: Using a multi-institutional, international database, 131 patients who underwent surgery for BCLM between 1980 and 2014 were identified. Clinicopathologic and outcome data were collected and analyzed. RESULTS: Median tumor size of the primary breast cancer was 2.5 cm (IQR: 2.0-3.2); 58 (59.8%) patients had primary tumor nodal metastasis. The median time from diagnosis of breast cancer to metastasectomy was 34 months (IQR: 16.8-61.3). The mean size of the largest liver lesion was 3.0 cm (2.0-5.0); half of patients (52.0%) had a solitary metastasis. An R0 resection was achieved in most cases (90.8%). Postoperative morbidity and mortality were 22.8% and 0%, respectively. Median and 3-year overall-survival was 53.4 months and 75.2%, respectively. On multivariable analysis, positive surgical margin (HR 3.57, 95% CI 1.40-9.16; p = 0.008) and diameter of the BCLM (HR 1.03, 95% CI 1.01-1.06; p = 0.002) remained associated with worse OS. DISCUSSION: In selected patients, resection of breast cancer liver metastases can be done safely and a subset of patients may derive a relatively long survival, especially from a margin negative resection.info:eu-repo/semantics/publishedVersio

Popular Theater

An account of popular theatre as modernist culture, 1890-194

Concurrent Sessions A: Emerging Engineering Solutions for Downstream Fish Passage at Big Dams - Cowlitz Falls North Shore Collector - Downstream Fish Passage Project

Completion of the Cowlitz River Project in the 1960s effectively blocked historical Cowlitz River runs of coho, spring and fall Chinook salmon, steelhead and sea-run cutthroat trout from volitional migration to about 80% of their former spawning habitat. Tacoma Power unsuccessfully attempted to maintain the runs through trap and haul of out-migrants upstream from Mossyrock Dam until 1973. Then, in the mid-1990s, Bonneville Power Administration (BPA) began reintroduction of salmon and trout upstream from the Cowlitz Falls Dam and added juvenile fish collection facilities at the dam called the Cowlitz Falls Fish Facility (CFFF). The CFFF was installed during dam construction in 1996 and was modeled after a surface collection concept at the Wells Dam Hydroproject in eastern Washington. This facility has never performed as well as intended for a number of reasons. As part of Tacoma Power’s 35-year federal license for its Cowlitz River Hydroelectric Project issued in 2003, Tacoma Power agreed to improve downstream fish passage on the Cowlitz River and has been working with the Cowlitz Fisheries Technical Committee (FTC) including representation from Tacoma Power, Lewis County PUD, resource agencies, and regional stakeholders to improve fish passage performance at the Dam. This presentation will provide an overview of the history of the project, the original fish passage facilities, and a summary of Tacoma Power’s efforts since 2003 that included creation of a Fish Passage Design Team as a subcommittee to the FTC. The process the Design utilized to develop conceptual designs will be presented, along with their recommendations that helped Tacoma Power decide to move forward with a new North Shore Collector. Additionally, the presentation will provide an overview of the investigations and design efforts underway since 2011 to refine the design concepts and converge on a final design layout that is planned for construction in 2015