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  • Life Sciences (General)  (21)
  • Aerodynamics  (1)
  • Key words. History of science; Ireland; Rosse Telescope; St. Patrick's College; Birr Demense; Irish National Museum (Galway); Giant's Causeway.  (1)
  • MBC, microbial biomass carbon MEP, Mehlich extractable phosphorus MLRA, Major Land Resource Areas MWD, mean-weight diameter NRCS, Natural Resources Conservation Service NRI, National Resource Inventory PMN, potentially mineralizable nitrogen PSU, primary sampling units TOC, total organic carbon WSA, water stable aggregates  (1)
  • Solar Physics  (1)
  • Statistics and Probability  (1)
  • 2000-2004  (26)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    The Physical Tourist¶Scientific Travels in the Irish Countryside (2000)
    Springer
    Physics in perspective 2 (2000), S. 313-326 
    Details
    ISSN: 1422-6960
    Keywords: Key words. History of science; Ireland; Rosse Telescope; St. Patrick's College; Birr Demense; Irish National Museum (Galway); Giant's Causeway.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Newly-prosperous Ireland has a number of sites which the scientific traveller can visit. There are apparatus museums at Birr and Maynooth, and a collection of early apparatus at the physics department of the Irish National University in Galway. The main attraction at Birr is the Rosse Telescope, with its 6-ft diameter speculum, built in the 1840s, and recently refurbished. Travellers to Northern Ireland can see applied geology at the Giant's Causeway.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000160050048
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Distribution and Variability of Surface Soil Properties at a Regional Scale (2000)
    Springer
    Soil Science Society of America journal 64 (2000), S. 974-982 
    Details
    ISSN: 1435-0661
    Keywords: MBC, microbial biomass carbon MEP, Mehlich extractable phosphorus MLRA, Major Land Resource Areas MWD, mean-weight diameter NRCS, Natural Resources Conservation Service NRI, National Resource Inventory PMN, potentially mineralizable nitrogen PSU, primary sampling units TOC, total organic carbon WSA, water stable aggregates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: e transformation resulted in normal distributions for most soil properties and reduced variability two- to threefold. However, a few soil properties remained non-normally distributed. Soil pH may be monitored at the regional scale with a high degree of precision. Small changes in soil C content (3–8% of the regional mean) may be detected using loge transformed total organic C as the indicator. Sampling soil properties as part of the NRI should improve NRCS' ability to monitor soil condition on a regional scale.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/
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  • 3
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    Laboratory multiple-crystal X-ray topography and reciprocal-space mapping of protein crystals: influence of impurities on crystal perfection (2001)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Double-axis multiple-crystal X-ray topography, rocking-curve measurements and triple-axis reciprocal-space mapping have been combined to characterize protein crystals using a laboratory source. Crystals of lysozyme and lysozyme crystals doped with acetylated lysozyme impurities were examined. It was shown that the incorporation of acetylated lysozyme into crystals of lysozyme induces mosaic domains that are responsible for the broadening and/or splitting of rocking curves and diffraction-space maps along the direction normal to the reciprocal-lattice vector, while the overall elastic lattice strain of the impurity-doped crystals does not appear to be appreciable in high angular resolution reciprocal-space maps. Multiple-crystal monochromatic X-ray topography, which is highly sensitive to lattice distortions, was used to reveal the spatial distribution of mosaic domains in crystals which correlates with the diffraction features in reciprocal space. Discussions of the influence of acetylated lysozyme on crystal perfection are given in terms of our observations.
    Keywords: Life Sciences (General)
    Type: Acta crystallographica. Section D, Biological crystallography (ISSN 0907-4449); Volume 57; Pt 6; 840-6
    Format: text
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  • 4
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    Diffraction and imaging study of imperfections of crystallized lysozyme with coherent X-rays (2004)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Phase-contrast X-ray diffraction imaging and high-angular-resolution diffraction combined with phase-contrast radiographic imaging were employed to characterize defects and perfection of a uniformly grown tetragonal lysozyme crystal in the symmetric Laue case. The full-width at half-maximum (FWHM) of a 4 4 0 rocking curve measured from the original crystal was approximately 16.7 arcsec and imperfections including line defects, inclusions and other microdefects were observed in the diffraction images of the crystal. The observed line defects carry distinct dislocation features running approximately along the 〈1 1 0〉 growth front and have been found to originate mostly in a central growth area and occasionally in outer growth regions. Inclusions of impurities or formations of foreign particles in the central growth region are resolved in the images with high sensitivity to defects. Slow dehydration led to the broadening of a fairly symmetric 4 4 0 rocking curve by a factor of approximately 2.6, which was primarily attributed to the dehydration-induced microscopic effects that are clearly shown in X-ray diffraction images. The details of the observed defects and the significant change in the revealed microstructures with drying provide insight into the nature of imperfections, nucleation and growth, and the properties of protein crystals.
    Keywords: Life Sciences (General)
    Type: Acta crystallographica. Section D, Biological crystallography (ISSN 0907-4449); Volume 60; Pt 4; 621-9
    Format: text
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  • 5
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    Phase sensitive x-ray diffraction imaging of defects in biological macromolecular crystals (2001)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Conventional x-ray diffraction topography is currently used to map defects in the bulk of protein crystals, but the lack of sufficient contrast is frequently a limiting factor. We experimentally demonstrate that this barrier can be circumvented using a method that combines phase sensitive and diffraction imaging principles. Details of defects revealed in tetragonal lysozyme and cubic ferritin crystals are presented and discussed. The approach enabling the detection of the phase changes of diffracted x rays should prove to be useful in the study of defect structures in a broad range of biological macromolecular crystals.
    Keywords: Life Sciences (General)
    Type: Physical review letters (ISSN 0031-9007); Volume 87; 14; 148101
    Format: text
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  • 6
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    Quality factors for alpha particles emitted in tissue (2002)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: A concept of a mean or dose averaged quality factor was defined in ICRP Publication 26 using relationships for quality factor as a function of LET. The concept of radiation weighting factors, wR, was introduced in ICRP Publication 60 in 1990. These are meant to be generalized factors that modify absorbed dose to reflect the risk of stochastic effects as a function of the quality of the radiation incident on the body or emitted by radioactivity within the body. The values of wr are equal to 20 for all alpha particles externally or internally emitted. This note compares the dose averaged quality factor for alpha particles originating in tissue using the old and revised recommendations for quality factor as a function of LET. The dose averaged quality factor never exceeds 20 using the old recommendations and is never less than 20 with the revised recommendations.
    Keywords: Life Sciences (General)
    Type: Health physics (ISSN 0017-9078); Volume 82; 1; 102-4
    Format: text
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  • 7
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    Recent Turbulence Model Advances Applied to Multielement Airfoil Computations (2000)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A one-equation linear turbulence model and a two-equation nonlinear explicit algebraic stress model (EASM) are applied to the flow over a multielement airfoil. The effect of the K-epsilon and K-omega forms of the two-equation model are explored, and the K-epsilon form is shown to be deficient in the wall-bounded regions of adverse pressure gradient flows. A new K-omega form of EASM is introduced. Nonlinear terms present in EASM are shown to improve predictions of turbulent shear stress behind the trailing edge of the main element and near midflap. Curvature corrections are applied to both the one- and two-equation turbulence models and yield only relatively small local differences in the flap region, where the flow field undergoes the greatest curvature. Predictions of maximum lift are essentially unaffected by the turbulence model variations studied.
    Keywords: Solar Physics
    Type: AIAA Paper 2000-4323 , Applied Aerodynamics; Aug 14, 2000 - Aug 17, 2000; Denver, CO; United States
    Format: application/pdf
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  • 8
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    What Do We Learn about Biological Molecules from Watching them Partake in Phase Transitions? (2000)
    In:  Other Sources
    Details
    Publication Date: 2019-07-11
    Description: No abstract available
    Keywords: Life Sciences (General)
    Format: text
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  • 9
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    Temperature-independent Solubility and Interactions Between Apoferritin Monomers and Dimers in Solution (2001)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Life Sciences (General)
    Type: J. Crystal Growth; 232; 27-29
    Format: text
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  • 10
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    Real Time In-situ Monitoring of Molecular Processes During Protein Crystallization (2000)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Life Sciences (General)
    Type: Colloquium Inst. of Physical Chemistry; Jun 20, 2000; Sofia; Bulgaria
    Format: text
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