594 research outputs found
“Utilization, Development and Conservation” of Natural Resources for the Maximum Benefit of Alaskans: Scrutinizing Alaska’s Permitting Regime for Large Mines
This Article disputes analyses and conclusions presented in an article about Pebble Mine published in the Alaska Law Review’s June 2008 issue. This Article discusses the history of mining in Alaska and the Pebble Project and describes the permitting regime applicable to mining exploration or development projects as it has been developed by the Alaska Legislature and the United States Congress, implemented by state and federal administrative agencies, and interpreted by federal and state courts. The Authors argue that the mining industry in Alaska has not historically proved detrimental to the fishing industry and that numerous and adequate legal safeguards are provided by the existing permitting regime. They also dispute the previous article’s conclusion that development of the Pebble resource would harm fisheries. This Article concludes that a change in state law by which the owners of the Pebble resource are barred from developing the known deposit would effect a compensable regulatory taking
On-board fault management for autonomous spacecraft
The dynamic nature of the Cargo Transfer Vehicle's (CTV) mission and the high level of autonomy required mandate a complete fault management system capable of operating under uncertain conditions. Such a fault management system must take into account the current mission phase and the environment (including the target vehicle), as well as the CTV's state of health. This level of capability is beyond the scope of current on-board fault management systems. This presentation will discuss work in progress at TRW to apply artificial intelligence to the problem of on-board fault management. The goal of this work is to develop fault management systems. This presentation will discuss work in progress at TRW to apply artificial intelligence to the problem of on-board fault management. The goal of this work is to develop fault management systems that can meet the needs of spacecraft that have long-range autonomy requirements. We have implemented a model-based approach to fault detection and isolation that does not require explicit characterization of failures prior to launch. It is thus able to detect failures that were not considered in the failure and effects analysis. We have applied this technique to several different subsystems and tested our approach against both simulations and an electrical power system hardware testbed. We present findings from simulation and hardware tests which demonstrate the ability of our model-based system to detect and isolate failures, and describe our work in porting the Ada version of this system to a flight-qualified processor. We also discuss current research aimed at expanding our system to monitor the entire spacecraft
Editing Woolf
No abstract available
Dynamic exchange of myosin VI on endocytic structures.
The actin-based molecular motor myosin VI functions in the endocytic uptake pathway, both during the early stages of clathrin-mediated uptake and in later transport to/from early endosomes. This study uses fluorescence recovery after photobleaching (FRAP) to examine the turnover rate of myosin VI during endocytosis. The results demonstrate that myosin VI turns over dynamically on endocytic structures with a characteristic half-life common to both the large insert isoform of myosin VI on clathrin-coated structures and the no-insert isoform on early endosomes. This half-life is shared by the myosin VI-binding partner Dab2 and is identical for full-length myosin VI and the cargo-binding tail region. The 4-fold slower half-life of an artificially dimerized construct of myosin VI on clathrin-coated structures suggests that wild type myosin VI does not function as a stable dimer, but either as a monomer or in a monomer/dimer equilibrium. Taken together, these FRAP results offer insight into both the basic turnover dynamics and the monomer/dimer nature of myosin VI
Expanded Food and Nutrition Education Program (EFNEP) Paraprofessional Supervision: Crucial Components for Program Success
The Expanded Food and Nutrition Education Program (EFNEP) national leadership and university program partners initiated a discussion about EFNEP paraprofessional supervision due to concerns raised by state coordinators and a belief that the quality and adequacy of paraprofessional supervision have a considerable impact on program outcomes and effectiveness. An EFNEP Paraprofessional Supervision Committee was formed and tasked with developing a framework of paraprofessional supervisory components necessary for effective local supervision of EFNEP within various university and state contexts.
The committee conceptualized EFNEP supervision as consisting of three crucial components: responsibilities; traits and skills; and critical support. Responsibilities outline the day-to-day tasks that EFNEP supervisors are expected to complete. Traits and skills underscore the qualities and behaviors that assist a supervisor with the effective implementation of duties, and are categorized as essential, important, or helpful. Critical support articulates the core functions that are shared by the EFNEP supervisor and those who support the supervisor and the program, both specifically and more generally, including administrators and directors.
The committee outlined a call to action to address the needs expressed by those who implement EFNEP on a daily basis. The committee proposes that applying and further developing these crucial components will strengthen EFNEP supervision and enhance the program’s effectiveness.https://lib.dr.iastate.edu/extension_pubs/1252/thumbnail.jp
Once a feminist: Lynne Segal on Grace Paley’s The Little Disturbances of Man
The following contributions came in response to a request, sent to a number of key figures in feminism today, to write on a text that had been formative for their thinking as feminists. The chosen text could be a theory, a novel, an artwork, a performance, a poem: one that had stimulated, or even revolutionised, their ideas. As we hoped, this project has created a selection of texts central to our many and different experiences as feminists.
I used to say that Margaret Drabble's The Garrick Year was the story of my life, in my early twenties, as if I was just a creature of time and circumstance. I read The Garrick Year sometime between October 1965, when my first child was born, and the end of 1967, before my marriage disintegrated. Like the heroine Emma Evans, I married a successful actor, had a child, and followed his career—which in the novel led Emma to Hereford for a summer season of plays
The Golden Age of European Cabaret
Program for the second annual RISD Cabaret held in the Cellar in the Pit. Design and layout by Anne Johnson, Susan Sellers and Georgie Stout.https://digitalcommons.risd.edu/liberalarts_cabaret_programs/1001/thumbnail.jp
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MTHFR polymorphisms in relation to ovarian cancer risk
Objective
Folate has been hypothesized to influence carcinogenesis due to its dual role in DNA methylation, which regulates gene expression, and synthesis of purine and thymidylate, which is vital for DNA repair. Thus, we examined ovarian cancer risk in relation to two functional polymorphisms (C677T and A1298C) in the MTHFR gene.
Methods
We genotyped the C677T (rs1801133) and A1298C (rs1801131) MTHFR polymorphisms in 1642 cases and 2068 controls from three studies, the New England Case Control Study (NEC), Nurses’ Health Study (NHS), and Mayo Clinic Ovarian Cancer Case Control Study (MAY).
Results
Overall, we observed no association between either SNP and ovarian cancer risk (pooled C677T ptrend = 0.59 and A1298C ptrend = 0.58). Significant associations (C677T ptrend=0.001, A1298C ptrend=0.02) between these MTHFR SNPs and serous ovarian cancer risk were observed in the NEC study, but were not replicated in the NHS and MAY studies.
Conclusions
MTHFR SNPs C677T and A1298C are not associated with ovarian cancer risk. Our results highlight the need for validation of genetic findings
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