1,625 research outputs found

    LANDSAT applications to wetlands classification in the upper Mississippi River Valley

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    A 25% improvement in average classification accuracy was realized by processing double-date vs. single-date data. Under the spectrally and spatially complex site conditions characterizing the geographical area used, further improvement in wetland classification accuracy is apparently precluded by the spectral and spatial resolution restrictions of the LANDSAT MSS. Full scene analysis of scanning densitometer data extracted from scale infrared photography failed to permit discrimination of many wetland and nonwetland cover types. When classification of photographic data was limited to wetland areas only, much more detailed and accurate classification could be made. The integration of conventional image interpretation (to simply delineate wetland boundaries) and machine assisted classification (to discriminate among cover types present within the wetland areas) appears to warrant further research to study the feasibility and cost of extending this methodology over a large area using LANDSAT and/or small scale photography

    Seeking Froebel's mother songs in daycare for babies

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    In 2013, we undertook a small exploratory study that involved baby room practitioners who work in full daycare settings in southeast England caring for babies from 3 weeks to around 18 months of age. We had received funding from The Froebel Trust to examine whether Froebel’s principles for early childhood education and care and the particular emphasis he placed on singing with babies and young children resonated with contemporary practices in settings that did not express any affiliation to Froebelian ideas. We adopted an interpretative approach, used predominantly narrative methods for data collection (including practitioners’ reflections on filmed observations of their practice) and applied thematic methods for qualitative data analysis. Our enquiry was framed and guided by findings from our previous research into the processes and practice of baby rooms (Goouch and Powell 2013) and a rapid review of literature about the benefits of singing to/with babies and Froebel’s writings on the subject. Our initial conceptual framework was underpinned by four propositions, which guided our research questions and design for the study. Although this pilot left us with many questions requiring further exploration, we were reasonably confident that our four propositions had been affirmed by our enquiries. Namely, that singing can facilitate intimacy; supports language development; can be a means to improve relationships with families; and enhances the wellbeing of practitioners during their working day. But we also discovered that singing is not overtly promoted in policy nor are its multiple facets and benefits necessarily recognised in practice. Consequently, although the practitioners involved frequently demonstrated that they broadly concurred with Froebel’s ideas about the value of singing, they did so only when it was drawn to their attention. Also they were largely unaware of Froebel’s principles and any resonance was coincidental. But they were fascinated by the enquiry, keen to learn about research on singing and Froebel’s beliefs, enthusiastic in their engagement in the project and replete with suggestions about how they could explore singing as a tool for connecting with babies’ parents and home lives

    EAPC task force on education for psychologists in palliative care

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    It is argued that psychological aspects of care and psychosocial problems are essential components of palliative care. However, the provision of appropriate services remains somewhat arbitrary. Unlike medical and nursing care, which are clearly delivered by doctors and nurses respectively, psychological and psychosocial support in palliative care are not assigned exclusively to psychologists. It is generally expected that all professionals working in palliative care should have some knowledge of the psychological dynamics in terminal illness, as well as skills in communication and psychological risk assessment. On the one hand, palliative care education programmes for nurses and doctors comprise a considerable amount of psychological and psychosocial content. On the other hand, only a few palliative care associations provide explicit information on the role and tasks of psychologists in palliative care. Psychologists’ associations do not deal much with this issue either. If they refer to it at all, it is in the context of the care of the aged, end-of-life care or how to deal with grief

    Some Personal Aspects of End-of-Life Decisionmaking

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    San Juan National Forest Land Management Planning Support System (LMPSS) requirements definition

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    The role of remote sensing data as it relates to a three-component land management planning system (geographic information, data base management, and planning model) can be understood only when user requirements are known. Personnel at the San Juan National Forest in southwestern Colorado were interviewed to determine data needs for managing and monitoring timber, rangelands, wildlife, fisheries, soils, water, geology and recreation facilities. While all the information required for land management planning cannot be obtained using remote sensing techniques, valuable information can be provided for the geographic information system. A wide range of sensors such as small and large format cameras, synthetic aperture radar, and LANDSAT data should be utilized. Because of the detail and accuracy required, high altitude color infrared photography should serve as the baseline data base and be supplemented and updated with data from the other sensors

    Develop and test fuel cell powered on-site integrated total energy system

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    Test results are presented for a 24 cell, two sq ft (4kW) stack. This stack is a precursor to a 25kW stack that is a key milestone. Results are discussed in terms of cell performance, electrolyte management, thermal management, and reactant gas manifolding. The results obtained in preliminary testing of a 50kW methanol processing subsystem are discussed. Subcontracting activities involving application analysis for fuel cell on site integrated energy systems are updated

    Develop and test fuel cell powered on-site integrated total energy systems: Phase 3, full-scale power plant development

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    A 25 cell stack of the 13 inch x 23 inch cell size (about 4kW) remains on test after 6000 hours, using simulated reformate fuel. A similar stack was previously shut down after 7000 hours on load. These tests were carried out for the purpose of assessing the durability of fuel cell stack components developed through the end of 1983. In light of the favorable results obtained, a 25kW stack that will contain 175 cells of the same size is being constructed using the same technology base. The components for the 25kW stack have been completed. A methanol steam reformer with a design output equivalent to 50kW has been constructed to serve as a hydrogen generator for the 25kW stack. This reformer and the balance of the fuel processing sub system are currently being tested and debugged. The stack technology development program focused on cost reduction in bipolar plates, nonmetallic cooling plates, and current collecting plates; more stable cathode catalyst support materials; more corrosion resistant metal hardware; and shutdown/start up tolerance

    Develop and test fuel cell powered on-site integrated total energy systems

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    On-going testing of an 11 cell, 10.7 in. x 14 in. stack (about 1 kW) reached 2600 hours on steady load. Nonmetallic cooling plates and an automated electrolyte replenishment system continued to perform well. A 10 cell, 10.7 in. x 14 in. stack was constructed with a modified electrolyte matrix configuration for the purpose of reducing cell IR loss. The desired effect was achieved, but the general cell performance level was irregular. Evaluation is continuing. Preparations for a long term 25 cell, 13 in. x 23 in. test stack (about 4 kW) approached completion. Start up in early May 1984 is expected

    Develop and test fuel cell powered on site integrated total energy sysems: Phase 3: Full-scale power plant development

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    A 25-cell stack of the 13 inch x 23 inch cell size (about 4kW) remains on test after 8300 hours, using simulated reformate fuel. A similar stack was previously shut down after 7000 hours on load. These tests have been carried out for the purpose of assessing the durability of fuel cell stack components developed through the end of 1983. A 25kW stack containing 175 cells of the same size and utilizing a technology base representative of the 25-cell stacks has been constructed and is undergoing initial testing. A third 4kW stack is being prepared, and this stack will incorporate several new technology features
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