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  • 1
    Electronic Resource
    Electronic Resource
    The action of visible radiation on the formation and properties of Saccharomyces ascospores (1969)
    Springer
    Archives of microbiology 66 (1969), S. 259-272 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Light in the blue and green bands of the spectrum inhibited ascospore formation in both Saccharomyces cerevisiae and S. carlsbergensis. Ascospores which were produced failed to stain with malachite green and mature spores formed in the dark lost their staining ability when exposed to light in these bands. It is thought that this is due to an alteration brought about in the molecular organization of the spore wall, so that the damaged walls become permeable to molecules of considerably greater size. Red light was without effect on S. cerevisiae, but stimulated sporulation in S. carlsbergensis. This response seemed to be strictly under the control of the yeast cell, and of a totally different nature from the injurious character of shorter wave lengths.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00412058
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  • 2
    Electronic Resource
    Electronic Resource
    An electron microscopic study of bud development in Saccharomycodes ludwigii and Saccharomyces cerevisiae (1971)
    Springer
    Archives of microbiology 78 (1971), S. 145-157 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Examination of sectioned cells fixed in KMnO4 has shown that the wall of the first bud of a cell of Saccharomycodes ludwigii arises as an extension of the main wall of the parent, while in subsequent buds it develops by extension of the half-septum remaining at a previous detachment scar. Septa are formed by the deposition of wall material on each side of an electron transparent plate which develops centripetally. Structural changes occur in the marginal region of the septum prior to rupture of the main wall and the separation of cells at the surface of the septum-plate. The broken walls remain as annular rings around the scars following the successive development of buds at both apices of the cell. In Saccharomyces cerevisiae the bud wall arises as a direct extension of the parent wall or as an extension of an additional inner layer developed locally. The two types of bud origin are compared in the two yeasts and a comparison is also made with the development of buds, fission cells, conidia and germ tubes in other organisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00424871
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  • 3
    Electronic Resource
    Electronic Resource
    The basis of differential staining of ascospores and vegetative cells of yeasts (1969)
    Springer
    Archives of microbiology 66 (1969), S. 1-13 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An investigation of the staining reactions of ascospores from 10 species of yeasts with 19 different dyes, showed that differentiation of spores from vegetative cells by staining depends on their relative permeability properties. Three possible staining mechanisms are discussed and examined for consistency with the data. It was also discovered that ascospores of Hansenula saturnus, which are not stained by the malachite green method, could be differentiated very satisfactorily from the vegetative cells by staining with hot rose bengal, followed by counter-staining with cold victoria blue B.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00414657
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of moderate exercise on the pharmacokinetics of caffeine (1991)
    Springer
    European journal of clinical pharmacology 40 (1991), S. 279-282 
    Details
    ISSN: 1432-1041
    Keywords: Caffeine ; Exercise ; Pharmacokinetics ; heavy coffe intake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The effect of moderate exercise on the kinetics of caffeine in 12 healthy volunteers-6 heavy coffee drinkers (HD) and 6 light coffee drinkers (LD) has been studied. Kinetics at Rest was measured first (R): the subjects remained at rest for 8 h after a single 250 mg dose of caffeine. One week later, the Exercise Kinetics (E) was measured under the same conditions, but with the subjects performing moderate exercise (30% of VO 2 max) during the first hour of the study. Exercise raised the maximal plasma caffeine concentrations (R: 7.28; E: 10.45) and reduced both the half-life (R 3.99 h; E 2.29 h) and the volume of distribution (R 371; E 20.91). Both during exercise and at rest, HD had a greater half-life elimination and volume of distribution than LD. The results suggest potentiation of the effects of caffeine during exercise and an increase in its distribution due to regular heavy coffee intake.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00315209
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  • 5
    Electronic Resource
    Electronic Resource
    Metastable α-FeSi"2 films grown on Si(1 1 1) at low temperature
    Amsterdam : Elsevier
    Physica B: Physics of Condensed Matter 198 (1994), S. 240-242 
    Details
    ISSN: 0921-4526
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0921-4526(94)90169-4
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  • 6
    Electronic Resource
    Electronic Resource
    Magnetic properties of nanostructured thin films of transition metal obtained by low energy cluster beam deposition : The 6th joint magnetism and magnetic materials (MMM)-intermag conference (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 76 (1994), S. 6676-6678 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Clusters of iron, cobalt, and nickel are produced in a laser vaporization source. The size distributions of the incident clusters are checked by time-of-flight mass spectrometry before deposition at low energy. Studying the near threshold photoionization, Con and Nin clusters exhibit an icosahedral structure while for iron, no clear structure emerges. Neutral clusters were deposited on different substrates at room temperature with thicknesses up to 100 nm in view to determine their structure and magnetic properties. A limited coalescence of the clusters is observed from high-resolution transmission electron microscopy. No icosahedron has been observed but cuboctahedron and interface twins between adjacent particles have been clearly identified in Ni films. Grazing incidence x-ray diffraction experiments reveal a classical phase with grain size around 6 and 4 nm for Fe and Ni films, respectively but an anomalous fcc phase for Co films and a very low grain size of 2 nm. The density of films determined by x-ray reflectivity was estimated to represent only 60%–65% of the bulk density. Magnetic behaviors studied by ferromagnetic resonance and SQUID magnetization measurements have been interpreted using the correlated spin glass model. Mössbauer spectra performed on Fe films at zero field revealed the presence of 20% of iron in the form of thin nonmagnetic oxide skin surrounding Fe grains which allow to find 2.2 μB per magnetic iron atom in agreement with macroscopic magnetic measurements. Nevertheless we found an anomalous reduced atomic moment for Ni film.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.358165
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  • 7
    Electronic Resource
    Electronic Resource
    Business Firms as Adaptive Entities: The Case of the Major Australian Banks 1983–94 (1997)
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Abacus 33 (1997), S. 0 
    Details
    ISSN: 1467-6281
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The conventional accounting notion of ‘going concern’, that a firm will continue business operations in the same manner indefinitely, has influenced accounting thought and practice throughout this century. An alternative view, widely upheld in the literatures of economics and organizational behaviour, is that firms are generally innovative and adapt to changes in market and economic conditions. These conflicting ideas are put under inquiry by examining the business policies and practices of the four major Australian banks over the period 1983 to 1994. We conclude on analytical grounds that conventional cost allocation and deferral practices, being based on the static or conventional idea of a ‘going concern’, are flawed and yield balance sheets that are not indicative of the financial capacity of firms to engage in commerce at any time. We conclude on empirical grounds that the Australian banks, at least, are generally innovative and adaptive enterprises.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1467-6281.00011
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  • 8
    Electronic Resource
    Electronic Resource
    X-ray scattering studies of FeSi2 films epitaxially grown on Si(111) (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 8169-8178 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A laboratory x-ray diffractometer for surface and thin-film studies is presented. Ex situ structural characterization of FeSi2 films epitaxially grown on Si(111) is reported. Both specular and nonspecular reflectivities are measured on β-FeSi2 films grown by solid-phase epitaxy and reactive deposition epitaxy techniques. A detailed comparison is performed of the electron density profile of the films normal to the surface, as well as of their surface roughness. In-plane diffraction is also measured at grazing incidence. For the β-FeSi2 sample investigated, the (110) epitaxy on Si(111) is clearly shown. For a film grown by molecular-beam-epitaxy codeposition at 550 °C, the existence of a new metastable phase which is in registry with silicon along the Si〈1¯ 10〉 direction and slightly out of registry, (3.0±1.0)% compressed along the Si〈112¯〉 direction, is reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353431
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  • 9
    Electronic Resource
    Electronic Resource
    X-ray reflectivity of an Sb delta-doping layer in silicon (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 5105-5108 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: X-ray reflectivity measurements were made on Si(001) crystals containing a delta-doping layer of Sb atoms a few nanometers below the surface. The measurements show the Sb doping profile to be abrupt towards the substrate side of the sample and to decay towards the surface with a characteristic decay length of 1.01 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347047
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  • 10
    Electronic Resource
    Electronic Resource
    Spin anisotropy of ferromagnetic slabs and overlayers (invited) (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 3362-3365 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We calculate the spin anisotropy of ferromagnetic monolayers of Fe, Ni, V, and Co. We find the easy direction of magnetization is perpendicular to the plane of the monolayer for Fe and V, but in the plane for Ni and Co. The result for Fe explains why spin splitting but no spin polarization is observed in recent photoemission experiments on Fe monolayers. For thicker ferromagnetic slabs, the depolarization energy will quickly overwhelm the spin anisotropy and force the moment into the plane of the slab. This is illustrated by calculations for thicker slabs of Fe. Preliminary calculations of the anisotropy of a monolayer of Fe on Ag indicate that the Ag must be treated fully relativistically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338770
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