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  • Blackwell Publishing Ltd  (4)
  • International Union of Crystallography (IUCr)  (4)
  • 2000-2004  (7)
  • 1950-1954  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Is Hydrogeologic Science on Track? (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 40 (2002), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.2002.tb02541.x
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of Ultra-high-pressure Homogenization on Structure and on Rheological Properties of Soy Protein-stabilized Emulsions (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : An ultra high-pressure homogenizer (20 to 350 MPa) was used to realize fine food emulsions stabilized by soy proteins. The first aim of the work was to understand how dynamic high-pressure processing affects soybean globulin conformation. Then, the effect of homogenizing pressure on the emulsions structure and rheology was investigated. High-pressure homogenization caused denaturation of proteins due to strong mechanical forces and high temperatures encountered in the valve. Droplet sizes of emulsions were greatly reduced with high-pressure homogenization and Newtonian liquid emulsions were converted into shear-thinning emulsion gels by homogenization at pressures above 250 MPa. Hydrophobic interactions between proteins were supposed to cause the gel-like network structure of emulsions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb09595.x
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  • 3
    Electronic Resource
    Electronic Resource
    Systematic Makings of Early Stage Hydrogeologic Conceptual Models (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 38 (2000), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Techniques to obtain optimal value from existing hydrogeological information are neglected in many ground water contamination studies, resulting in great costs to the public. Data collection and routine interpretations should not be good enough for hydrogeologists, who should be inherently adept at keen early perspectives and applying useful generalizations. Techniques are available to obtain and explain expanded knowledge from piecemeal and imprecise information at the early stages of site studies. Scarcity of precise data should not be a deterrent. This needed mindset should precede the prevailing mindset of initial collection of extensive new data, followed by data interpretation and mathematical modeling. The existing mindset is often guided by rigid regulations.The procedure of interlocking the past with the present to predict the future through the systematic use of generalizations and retrodictive inferences builds a prior conceptual model explanation (PCME). This early PCME is an organized, mental picture or discernment of a hydrogeological setting displaying three-dimensional hydrogeologic features, the discernment being capable of explaining in narrative form the general fluid mechanics and contaminant behavior within imprecise but reasonable bounds. This characterization is logically followed by possible cause-and-effect relations and predictions of extended consequences of natural and human actions. A site PCME has sound support from the cross-checking of interrelated factors that leads to almost interlocking proofs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.2000.tb00688.x
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  • 4
    Electronic Resource
    Electronic Resource
    Planar faults in layered Bi-containing perovskites studied by X-ray diffraction line profile analysis (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 34 (2001), S. 699-703 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Profile fitting procedures associated with integral breadth studies and Fourier analysis are applied to the study of the complex Bi-containing layered perovskite SrBi2Nb2O9. Strong line broadening anisotropy is evidenced. Both `size' and `strain' effects contribute to the observed width. However, `size' broadening along the [00l] direction is essentially caused by stacking faults. The coherently diffracting domain sizes are deduced from Fourier analysis of the diffraction patterns and a rough estimate of the mean distance between faults is given. Thermal annealing significantly decreases the stacking fault density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889801011700
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  • 5
    Electronic Resource
    Electronic Resource
    Sur le groupe spatial de la cellulose (1952)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 5 (1952), S. 800-802 
    Details
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0365110X5200215X
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  • 6
    Electronic Resource
    Electronic Resource
    Crystallization and 2.2 Å resolution structure of R-phycoerythrin from Gracilaria chilensis: a case of perfect hemihedral twinning (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 52-60 
    Details
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: R-phycoerythrin, a light-harvesting component from the red algae Gracilaria chilensis, was crystallized by vapour diffusion using ammonium sulfate as precipitant agent. Red crystals grew after one week at 293 K and diffracted to 2.70 Å resolution. Three serial macroseeding assays were necessary to grow a second larger crystal to dimensions of 0.68 × 0.16 × 0.16 mm. This crystal diffracted to 2.24 Å resolution using synchrotron radiation at beamline BM14 of the European Synchrotron Radiation Facility (ESRF) at Grenoble, France and was used for structure determination. Data were collected at 100 K to a completeness of 98.6%. The crystal was trigonal, space group R3, with unit-cell parameters a = b = 187.3, c = 59.1 Å, α = β = 90, γ = 120°. Data treatment using the CCP4 suite of programs indicated that the crystal was twinned (〈I2〉/〈I〉2 = 1.41). Molecular replacement was performed with AMoRe using the R-phycoerythrin from Polysiphonia urceolata [Chang et al. (1996), J. Mol. Biol. 249, 424–440] as a search model. In order to overcome the twinning problem, SHELX97 was used for the crystallographic refinement. The twin fraction was 0.48, indicating a nearly perfect hemihedrally twinned crystal. The final Rwork and Rfree factors are 0.16 and 0.25, respectively. All the residues and chromophores of the α- and β-chains are well defined in the electron-density maps. Some residues belonging to the γ-linker are also recognizable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0907444900015274
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  • 7
    Electronic Resource
    Electronic Resource
    Structural analysis of pyrrolidinones (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 193-196 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the course of a study on pyrrolidinones, the crystal structures of four compounds, namely, methyl N-[(4-methoxyphenyl)(3,4,5-trimethoxyphenyl)methyl]pyroglutamate, C23H27NO7, methyl N-[naphthyl-(3,4,5-trimethoxyphenyl)methyl]pyroglutamate diacetyl peroxide, C26H27NO6·-0.5C4H6O4, 5-(3,4,5-trimethoxyphenyl)-1,2,3,11b-tetrahydro-5H-naphtho[1,8-f,g]indolizin-3-one, C24H23NO4, and 5-(3,4,5-trimethoxyphenyl)-1,2,3,5,12,12a-hexahydronaphtho[1,2-f]indolizine-3,12-dione, C25H23NO5, are presented, compared and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270199013037
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  • 8
    Electronic Resource
    Electronic Resource
    HIV-1 genetic diversity in Western Brittany, France (2002)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 34 (2002), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: We describe human immunodeficiency virus type 1 (HIV-1) diversity in Western Brittany, France, and trace the dissemination of HIV-1 non-B subtype infection. The strategy for HIV-1 subtyping used involved subtype specific enzyme immunoassays, heteroduplex mobility assays and phylogenetic analysis of the sequences of env encoding the V3 loop region. Samples were obtained from 567 patients: 465 (82%) were of subtype B and 66 (11.6%) were not (20 were subtype A, 11 subtype C, four subtype D, seven subtype F, five subtype G and 19 others with circulating recombinant forms: 4CRF01_AE, 11CRF02_AG, 1H, 3CRF11_cpx). These findings are consistent with other studies of French populations. There is an epidemiological correlation between subtype B and homosexual or heterosexual contamination in France and between non-B subtype and heterosexual contamination in Africa.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.2002.tb00604.x
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