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  • 1
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    Big data: the next Google. Interview by Duncan Graham-Rowe (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buxton, Bill -- Hayward, Vincent -- Pearson, Ian -- Karkkainen, Leo -- Greiner, Helen -- Dyson, Esther -- Ito, Joi -- Chung, Anshe -- Kelly, Kevin -- Schillace, Sam -- England -- Nature. 2008 Sep 4;455(7209):8-9. doi: 10.1038/455008a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18769400" target="_blank"〉PubMed〈/a〉
    Keywords: Computer Graphics/trends ; Electronics/trends ; Genetic Predisposition to Disease ; Humans ; Internet/*trends ; Records as Topic ; Robotics/trends ; Touch ; User-Computer Interface
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Attentional activation of the cerebellum independent of motor involvement (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: The cerebellum traditionally has been viewed as a neural device dedicated to motor control. Although recent evidence shows that it is involved in nonmotor operations as well, an important question is whether this involvement is independent of motor control and motor guidance. Functional magnetic resonance imaging was used to demonstrate that attention and motor performance independently activate distinct cerebellar regions. These findings support a broader concept of cerebellar function, in which the cerebellum is involved in diverse cognitive and noncognitive neurobehavioral systems, including the attention and motor systems, in order to anticipate imminent information acquisition, analysis, or action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, G -- Buxton, R B -- Wong, E C -- Courchesne, E -- R01-MH36840/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1940-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉San Diego State University-University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA 92120, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072973" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Attention ; Brain Mapping ; Cerebellar Cortex/physiology ; Cerebellum/*physiology ; *Cognition ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; *Motor Activity ; *Psychomotor Performance
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Genomic mapping of cAMP receptor protein (CRPMt) in Mycobacterium tuberculosis: relation to transcriptional start sites and the role of CRPMt as a transcription factor (2014)
    Oxford University Press
    Details
    Publication Date: 2014-08-01
    Description: Chromatin immunoprecipitation identified 191 binding sites of Mycobacterium tuberculosis cAMP receptor protein (CRP Mt ) at endogenous expression levels using a specific α-CRP Mt antibody. Under these native conditions an equal distribution between intragenic and intergenic locations was observed. CRP Mt binding overlapped a palindromic consensus sequence. Analysis by RNA sequencing revealed widespread changes in transcriptional profile in a mutant strain lacking CRP Mt during exponential growth, and in response to nutrient starvation. Differential expression of genes with a CRP Mt -binding site represented only a minor portion of this transcriptional reprogramming with ~19% of those representing transcriptional regulators potentially controlled by CRP Mt . The subset of genes that are differentially expressed in the deletion mutant under both culture conditions conformed to a pattern resembling canonical CRP regulation in Escherichia coli , with binding close to the transcriptional start site associated with repression and upstream binding with activation. CRP Mt can function as a classical transcription factor in M. tuberculosis , though this occurs at only a subset of CRP Mt -binding sites.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 4
    Electronic Resource
    Electronic Resource
    The symmetry of convergent-beam electron diffraction patterns from bicrystals: erratum (1984)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 40 (1984), S. 167-167 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Table 1 of Schapink, Forghany & Buxton [Acta Cryst. (1983). A39, 805-813] contains several printing errors. The correct table is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108767384000374
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  • 5
    Electronic Resource
    Electronic Resource
    The atomic-string approximation in cross-grating high-energy electron diffraction. I. Dispersion surface and Bloch waves (1980)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 36 (1980), S. 304-315 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: A new real-space method of calculating the dispersion surface and Bloch waves in cross-grating HEED is derived. Instead of using a large many-beam matrix to compute the dispersion surface, the equivalent two- dimensional band structure of allowed transverse energies of the Bloch waves is calculated from a small matrix obtained by approximating the KKR equations derived earlier [Ozorio de Almeida (1975). Acta Cryst. A31, 435-442]. For a close-packed array of atomic strings as in Au [111], transverse energy bands in excellent agreement with conventional 91 × 91 many-beam matrix calculations are obtained with only a 7 × 7 matrix. It is also shown how the calculation of the Bloch waves and their Fourier coefficients C(J)G may be further simplified by replacing the unit cell of the projected potential by its Wigner-Seitz circle. Numerical calculations, again for Au[ 111], show that the C(J)0 so obtained are still in excellent agreement with many-beam calculations but that the higher Fourier coefficients C(J)G, being more sensitive to the form of the Bloch waves in the interstitial region, are less accurate. The form of the Bloch waves is investigated and it is shown that near the zone-axis critical voltage, the nearly degenerate Bloch waves are almost entirely sp hybrids so that a 3 × 3 matrix may be used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739480000599
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  • 6
    Electronic Resource
    Electronic Resource
    The symmetry of convergent-beam electron diffraction patterns from bicrystals (1983)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 39 (1983), S. 805-813 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: A discussion of the relationship between the symmetry of bicrystals and the resulting symmetry of convergent-beam electron diffraction (CBED) patterns is presented. For this purpose bicrystal symmetry is defined from the symmetry of the dichromatic pattern or complex formed by the interpenetrating lattices or structures of the individual crystals in a bicrystal. The interrelation between the possible coloured point groups and the diffraction groups, characterizing the symmetry of a CBED pattern, is established. These results are illustrated by a determination of the symmetry of thin twinned Au crystals from suitable CBED patterns. These experiments give information about the state of relative translation of the two crystals at the grain boundary and are consistent with the state of zero translation expected for a (111) coherent twin boundary in Au. It is pointed out that the interpretation of the CBED pattern symmetry may be complicated by a non-ideal location of the boundary plane in a bicrystal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108767383001580
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  • 7
    Electronic Resource
    Electronic Resource
    Behaviour of a New Species, Digitalis mertonensis . (1931)
    [s.l.] : Nature Publishing Group
    Nature 127 (1931), S. 94-94 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HYBRIDS have often been obtained between Digitalis purpurea and D. ambigua, but it was not until 1926 that a few F2 seedlings were raised by crossing such hybrids inter se.1 These seedlings were giant, highly fertile, and showed no segregation of the parental ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/127094b0
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  • 8
    Electronic Resource
    Electronic Resource
    Multiple molecular forms of β-amylase in seeds and vegetative tissues of barley (1988)
    Springer
    Planta 176 (1988), S. 127-134 
    Details
    ISSN: 1432-2048
    Keywords: β-Amylase (isoforms) ; Hordeum, (β-amylase) ; mRNA populations ; Seed (β-amylase)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The molecular forms of β-amylase present in developing, mature, germinating and malted grains of barley (Hordeum vulgare L.), and in vegetative tissues, have been studied using Western-blot analyses and isoelectric focusing of isoenzymes. Five isoforms with different relative molecular masses (Mrs) could be recognised. The major isoform present in the mature grain, called isoform B, had an Mr of about 60 000. This was converted on malting or germination to two lower-Mr forms called C and D. Previous work (R. Lundgard and B. Svensson, 1986, Carlsberg Res. Commun. 51, 487–491) has shown that these result from partial proteolysis of isoform B. Isoenzyme analyses showed complex patterns of bands, with pIs between about 5.0 and 6.0. Two allelic types were present in the eight lines. A number of new bands with a range of pIs appeared during germination and malting. An isoform with the same Mr as D and a minor low-Mr isoform (E) were present in young developing whole caryopses (8–12 d after anthesis), but not in older developing endosperms (14–21 d after anthesis). Isoenzyme analyses also showed different patterns of bands in these two tissues, while hybrid-dot analyses indicated the presence of separate populations of mRNAs. It is suggested that the early endosperm isoforms (D and E) are “green” β-amylases present in the pericarp and-or testa of the young caryopses. Roots but not shoots or leaves also contained an isoform with the same Mr as D, although the pattern of isoenzymes differed from that present in the seed tissues. The fifth isoform, A, was a diffuse high-Mr form present in small amounts in all seed and vegetative tissues, and may correspond to a constitutively expressed form. These multiple molecular forms of β-amylase are discussed in relation to the recent report that β-amylase is encoded by two structural loci, with a total copy number of two to three per haploid genome (Kreis et al, 1988, Genet. Res. Camb. 51, 13–16).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392488
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  • 9
    Electronic Resource
    Electronic Resource
    Studien über kolloide Flockung (1909)
    Springer
    Colloid & polymer science 5 (1909), S. 138-146 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01465019
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  • 10
    Electronic Resource
    Electronic Resource
    Ueber Ausflockung von Kolloiden (1908)
    Springer
    Colloid & polymer science 2 (1908), S. XLV 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01526938
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