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  • Springer  (97)
  • Blackwell Publishing Ltd  (23)
  • Copernicus
  • American Meteorological Society
  • 2015-2019  (54)
  • 2000-2004  (45)
  • 1975-1979  (40)
  • 1965-1969  (11)
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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of a swallow homologue from Drosophila pseudoobscura (2000)
    Springer
    Development genes and evolution 210 (2000), S. 157-161 
    Details
    ISSN: 1432-041X
    Keywords: Key words Swallow ; bicoid ; Drosophila ; mRNA localization ; Oogenesis ; Embryogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  We analyzed a functional homologue of the swallow gene from Drosophila pseudoobscura. The swallow gene of D. melanogaster plays an essential role in localizing bicoid mRNA in oocytes, and swallow mutant embryos show anterior pattern defects that result from the lack of localization of the bicoid morphogen. The pseudoobscura homologue rescues the function of swallow mutants when introduced into the genome of D. melanogaster, and its expression is similar to that of the melanogaster gene. The predicted pseudoobscura and melanogaster proteins are 49% identical and 69% conserved. The coiled-coil domain previously identified in the melanogaster swallow protein is strongly conserved in the pseudoobscura homologue, but the weak similarity of the melanogaster swallow protein to the RNP class of RNA-binding proteins is not conserved in the pseudoobscura homologue. These and other observations suggest a structural role for swallow in localizing bicoid mRNA, perhaps as part of the egg cytoskeleton.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004270050023
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  • 2
    Electronic Resource
    Electronic Resource
    Reliability of dipole-dipole electrical resistivity tomography for defining depth to bedrock in covered karst terranes (2000)
    Springer
    Environmental geology 39 (2000), S. 760-766 
    Details
    ISSN: 1432-0495
    Keywords: Key words Karst terranes ; Electrical resistivity tomography ; Sinkholes ; Pinnacles and cutters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Sinkhole collapse is one of the main limitations on the development of karst areas, especially where bedrock is covered by unconsolidated material. Studies of sinkhole formation have shown that sinkholes are likely to develop in cutter (enlarged joint) zones as a result of subterranean erosion by flowing groundwater. Because of the irregular distribution of pinnacles and cutters on the bedrock surface, uncertainties arise when "hit-or-miss" borehole drilling is used to locate potential collapse sites. A high-resolution geophysical technique capable of depicting the details of the bedrock surface is essential for guiding the drilling program. Dipole-dipole electrical resistivity tomography (ERT) was used to map the bedrock surface at a site in southern Indiana where limestone is covered by about 9 m of clayey soils. Forty-nine transects were conducted over an area of approximately 42,037 m2. The electrode spacing was 3 m. The length of the transects varied from 81 to 249 m. The tomographs were interpreted with the aid of soil borings. The repeatability of ERT was evaluated by comparing the rock surface elevations interpreted from pairs of transects where they crossed each other. The average difference was 2.4 m, with a maximum of 10 m. The discrepancy between interpreted bedrock-surface elevations for a transect intersection may be caused by variations in the subsurface geology normal to the transect. Averaging the elevation data interpreted from different transects improved the ERT results. A bedrock surface map was generated using only the averaged elevation data at the transect junctions. The accuracy of the map was further evaluated using data from four exploratory boreholes. The average difference between interpreted and actual bedrock surface-elevations was less than 0.4 m. The map shows two large troughs in the limestone surface: one coinciding with an existing sinkhole basin, while the other is in alignment with a small topographic valley. Because sinkholes were observed at the same elevation interval in similar valleys in the vicinity, the delineated trough may have implications for future land use at the site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002540050491
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  • 3
    Electronic Resource
    Electronic Resource
    A mathematical model of proximal tubule absorption (1979)
    Springer
    The journal of membrane biology 47 (1979), S. 377-399 
    Details
    ISSN: 1432-1424
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary A previous model of the mechanisms of flow through epithelia was modified and extended to include hydrostatic and osmotic pressures in the cells and in the peritubular capillaries. The differential equations for flow and concentration in each region of the proximal tubule were derived. The equations were solved numerically by a finite difference method. The principal conclusions are: (i) Cell NaCl concentration remains essentially isotonic over the pressure variations considered; (ii) channel NaCl concentration varies only a few mosmol from isotonicity, and the hydrostatic and osmotic pressure differences across the cell wall are of the same order of magnitude; (iii) both reabsorbate osmolality and pressure-induced flow are relatively insensitive to the geometry of the system; (iv) a strong equilibrating mechanism exists in the sensitivity of the reabsorbate osmolality to luminal osmolality; this mechanism is far more significant than any other parameter change.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01869745
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  • 4
    Electronic Resource
    Electronic Resource
    An in situ assessment of the specific lysis rate in continuous cultures of Methylococcus sp. (NCIB 11083) grown on methane (1978)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 4 (1978), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1978.tb02887.x
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  • 5
    Electronic Resource
    Electronic Resource
    Translation of infectious bronchitis virus RNA (1978)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 3 (1978), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1978.tb01922.x
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  • 6
    Electronic Resource
    Electronic Resource
    A preliminary study on growth yields in relation to the carbon and energy content of various organic growth substrates (1978)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 3 (1978), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1978.tb01891.x
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  • 7
    Electronic Resource
    Electronic Resource
    THE RELATIONSHIP BETWEEN THE CHIEF EXECUTIVE OFFICER AND THE BOARD OF DIRECTORS IN THE CO-OPERATIVE ENVIRONMENT (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of public and cooperative economics 40 (1969), S. 0 
    Details
    ISSN: 1467-8292
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: This paper examines the relationship between the Chief Executive of a CO-operative retail society and his Board of Directors. It takes for its starting point three critical activities of the Chief Executive, i.e. the achievement of society objectives; the maintenance of the internal stability of the society and the adaptation of the society to the external environment.Two factors which influence the performance of these activities are the Chief Executive's orientation to society performance and his relationship with his Board.The Chief Executive will tend to be inward-outward in orientation. Factors affecting this will be his previous task experience and organisational experience of which two aspects are important (a) time—the length of service a t lower and middle management level and (b) structure—the degree of delegation. These will affect the Chief Executive Officer's ability to deal with uncertainty in the environment, A third influential factor will be the attitudes and expectations of his Board which will be structured by their perception of democratic control. Finally the nature of the environment will affect the Chief Executive's orientation and his flexibility.In dealing with the problems which face him the Chief Executive is influenced by his reference points, i.e. by the degree of internalisation of co-operative values, and by his beliefs about the rightness of previous decisions.His decision-making is influenced by the interaction of his beliefs and those of his Board and by the depth to which they are held. These beliefs may be seen in two parts, first, relating to the nature of co-operative enterprise and secondly, to the method by which the co-operative enterprise is controlled.Contributing to the depth of internalisation of co-operative beliefs would appear to be their social and political backgrounds. Additional factors for the Chief Executive Officer include length of service in the co-operative movement, non-co-operative experience and his commitment to :managerial values'.On the basis of the differing orientations of the persons concerned, it is possible to hypothesise the development of certain decision-making situations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8292.1969.tb00284.x
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  • 8
    Electronic Resource
    Electronic Resource
    ATTITUDES TO DIVIDEND IN CO-OPERATIVE RETAIL SOCIETIES (1966)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of public and cooperative economics 37 (1966), S. 0 
    Details
    ISSN: 1467-8292
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8292.1966.tb01686.x
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  • 9
    Electronic Resource
    Electronic Resource
    MEMBER COMMITMENT IN A DEMOCRATIC ORGANISATION (1967)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of public and cooperative economics 38 (1967), S. 0 
    Details
    ISSN: 1467-8292
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8292.1967.tb00707.x
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  • 10
    Electronic Resource
    Electronic Resource
    ORGANIZATION DEVELOPMENT: A CRITIQUE (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of management studies 12 (1975), S. 0 
    Details
    ISSN: 1467-6486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-6486.1975.tb00510.x
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