1,819 research outputs found

    Study of pressure losses in tubing and fittings Final report, Jun. 1, 1964 - Jun. 1, 1966

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    Steady state and transient fluid flow equations for predicting friction and pressure in tubing and fitting systems - computer progra

    Mars entry and landing capsule

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    Various approaches to problems of delivering Apollo type entry capsule to Mars, entering and descending through its atmosphere, and placing scientific payload on its surfac

    Attachment of Plasma Membranes of Cultured Cells to Silicon Chips for High Magnification Imaging in Scanning Electron Microscopy

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    In the membrane preparation method described in this paper, a polylysine-coated silicon chip is adsorbed to the exposed apical surface of a cell monolayer. Upon removal, the adsorbed chip separates the plasmalemma from the residual bodies of the cultured cells. This sandwich-membrane separation approach simplifies access to the cytoplasmic aspects of both the apical and the basal plasmalemma which remains on the culture substrate and is covered to a varied extent by cytoplasmic infrastructures. To stabilize the attached membranes, small crosslinking agents are used in a controlled osmium impregnation. Large crosslinkers are avoided since they induce thickening of fine structures. Optimal conditions for attachment of plasmalemma of cultured adrenal endothelial cells to the cationic chip are defined. Effective cleaning procedures of the chips and useful molecular weights of polylysine are determined by quantitating colloidal gold adherence to the surface of the chips. The specimens are examined by high resolution scanning electron microscopy

    Study of pressure losses in tubing and fittings Quarterly progress report, Dec. 1965 - Feb. 1966

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    Pressure losses in tubing and fittings - flow systems analysis, entrance effects in flexible metal hoses, and methods for analyzing flow over rough surfac

    Vibration effects on heat transfer in cryogenic systems Quarterly progress report no. 1, Jun. 1 - Aug. 31, 1966

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    Vibration effects on natural convection and fluid transport properties in cryogenic system

    Sidh: A Wireless Sensor Network Simulator

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    This report describes Sidh, a wireless sensor network simulator

    Menstrual management in communal sanitation facilities: recommendations to eThekwini municipality

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    A growing body of research has shown that menstrual hygiene products (MHPs) are critical to gender equity, and South Africa has committed to providing free sanitary napkins to all indigent women. To address interim water and sanitation needs of its citizens living in informal settlements, South Africa’s eThekwini Water and Sanitation Unit (EWS) constructed community ablution blocks (CABs) that consist of gender-separated toilets, showers, and washbasins. The interactions between women, unfamiliar sanitation systems, and MHPs are likely to impact women and the sanitation systems they utilize. A larger case study led by PATH is evaluating these interactions, within which this sub-study aims to characterize the relationship between CABs and menstrual hygiene management in Durban’s informal settlements. Based on analysis of information gathered through interviews, photo documentation, and observations, we provide recommendations to EWS that we believe will improve women’s experiences at CABs and reduce negative impacts on the sanitation systems

    CAN LINGUISTIC ANALYSIS BE USED TO IDENTIFY WHETHER ADOLESCENTS WITH A CHRONIC ILLNESS ARE DEPRESSED?

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    Comorbid depression is common in adolescents with chronic illness. We aimed to design and test a linguistic coding scheme for identifying depression in adolescents with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME), by exploring features of e-consultations within online cognitive behavioural therapy treatment. E-consultations of 16 adolescents (aged 11–17) receiving FITNET-NHS (Fatigue in teenagers on the interNET in the National Health Service) treatment in a national randomized controlled trial were examined. A theoretically driven linguistic coding scheme was developed and used to categorize comorbid depression in e-consultations using computerized content analysis. Linguistic coding scheme categorization was subsequently compared with classification of depression using the Revised Children's Anxiety and Depression Scale published cut-offs (t-scores ≥65, ≥70). Extra linguistic elements identified deductively and inductively were compared with self-reported depressive symptoms after unblinding. The linguistic coding scheme categorized three (19%) of our sample consistently with self-report assessment. Of all 12 identified linguistic features, differences in language use by categorization of self-report assessment were found for “past focus” words (mean rank frequencies: 1.50 for no depression, 5.50 for possible depression, and 10.70 for probable depression; p &lt;.05) and “discrepancy” words (mean rank frequencies: 16.00 for no depression, 11.20 for possible depression, and 6.40 for probable depression; p &lt;.05). The linguistic coding profile developed as a potential tool to support clinicians in identifying comorbid depression in e-consultations showed poor value in this sample of adolescents with CFS/ME. Some promising linguistic features were identified, warranting further research with larger samples.</p
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