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  • 1995-1999
  • 1985-1989
  • 1980-1984  (33)
  • 1984  (33)
  • 1
    Electronic Resource
    Electronic Resource
    A COMPARISON OF SOME BLOCK ADJUSTMENT SYSTEMS IN CURRENT USE (1984)
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 11 (1984), S. 0 
    Details
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Eight aerial triangulation block adjustment systems were tested using two blocks of Ordnance Survey data. The iterative relaxation methods could not cope with the standard patterns of control. Bundle methods, especially with additional parameters, gave significantly better results than model adjustments. Ease of data handling and clarity of output are considered to be more important factors than absolute accuracy in choosing a block adjustment system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1477-9730.1984.tb00504.x
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  • 2
    Electronic Resource
    Electronic Resource
    Glycosaminoglycans in fluid aspirates from odontogenic cysts (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 13 (1984), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Glycosaminoglycans and proteoglycans were analysed in keratinizing and non-keratinizing odontogenic cyst fluids. Hyaluronic acid showed the highest incidence and abundance amongst the glycosaminoglycans detected. Appreciable amounts of ehondroitin-4-sulphatc were also observed, particularly in the dental cysts, with lesser amounts of the other glycosaminoglycans. Heparan sulphate showed a higher incidence and abundance in the keratocyst than the other cysts, whilst chondroitin-6-sulphatc could not be detected in any of the cysts. A considerable proportion of the glycosaminoglycans of the fluids appeared to be complexed with protein and was released only after protcolytic digestion. The origin of these macromolecules is uncertain although it is likely that they are derived from both the connective tissue and the epithelium of the cyst wall.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1984.tb01463.x
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  • 3
    Electronic Resource
    Electronic Resource
    ADJUNCTIVE EFFECT OF SALT RESTRICTION ON ANTIHYPERTENSIVE EFFICACY (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 11 (1984), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The effect of dietary salt restriction on blood pressure was measured in patients with moderate hypertension receiving antihypertensive medication. Patients were studied during a randomly allocated 6 week period of moderate dietary salt restriction and during a 6 week period of normal diet.2. Twenty-four of twenty-eight patients achieved a reduction of salt excretion exceeding 20%. In these patients mean urinary sodium excretion fell from 169 (s.e.m. = 13) mmol/24 h to 92 (s.e.m. = 7) mmol/24 h. Potassium excretion and body weight did not change, and with the exception of the erect systolic pressure, there was no overall change in blood pressure.3. When the data were grouped according to the patient medication, mean supine systolic pressure fell from 148.9 (s.e.m. = 4.4) to 140.3 (s.e.m. = 5.0) mmHg (n= 14, P〉0.05) and mean supine diastolic pressure fell from 100.8 (s.e.m. = 2.9) to 97.0 (s.e.m. = 2.8) mmHg (n= 14, P〉0.05) in patients taking diuretics. Blood pressure did not change in patients whose medication did not include diuretics.4. Moderate dietary salt restriction may be therapeutically useful in patients with moderate hypertension treated with diuretics but is of little value in those not receiving diuretics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1984.tb00286.x
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  • 4
    Electronic Resource
    Electronic Resource
    Delayed phase change due to hot asthenosphere causes Transantarctic uplift? (1984)
    [s.l.] : Nature Publishing Group
    Nature 309 (1984), S. 536-538 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The continental uplift model used here proposes that rapid uplift will lag some 50 Myr behind the overriding of anomalously hot asthenosphere by a continent. An estimated mantle heat flux increase of 3.5 mW m2is believed to cause phase changes in the uppermost continental mantle1. In the absence of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/309536a0
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    The structure of 1,2;3,4-bis{μ-[bis(diphenylphosphino)methane]-P,P'}-1,2;2,4;4,1-tri-μ-carbonyl-1,2,3,3,4-pentacarbonyl-tetrahedro-tetrairidium(0), C58H44Ir4O8P4 (1984)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 40 (1984), S. 790-793 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270184005746
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  • 6
    Electronic Resource
    Electronic Resource
    Arrest for Questioning and Giving Reasons for Search: Two Cases on Police Powers (1984)
    Cambridge : Cambridge University Press
    The @Cambridge law journal 43 (1984), S. 12-16 
    Details
    ISSN: 0008-1973
    Source: Cambridge Journals Digital Archives
    Topics: Law
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0008197300110086
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Changes in salivary peroxidase activity observed during experimentally-induced gingivitis (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 11 (1984), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Gingivitis was experimentally induced in 8 human subjects using an acrylic overlay to cover the teeth in the experimental area during any oral hygiene procedures. The overlays were used for a period of 3 weeks, after which the subjects received a scale and polish and then practised normal oral hygiene. At regular intervals during the experimental period, mixed saliva was collected for assay of peroxidase activity by spectrophotometric and test-strip procedures and plaque and gingival indices were assessed clinically. A considerable increase in peroxidase activity was observed during the experimental period, which declined after normal hygiene was resumed. This procedure may allow assessment of the progression of gingivitis under experimental conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.1984.tb01335.x
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  • 8
    Electronic Resource
    Electronic Resource
    Neutron total, scattering and inelastic Gamma-ray cross sections of yttrium at few MeV energies (1984)
    Springer
    The European physical journal 319 (1984), S. 47-56 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Neutron total, scattering and (n; n′,γ) cross sections of elemental yttrium (89Y) were measured in the few-MeV region. The neutron total-cross-section measurements were made with broad resolutions from ≈0.5 to 4.2MeV in steps of ≲0.1 MeV. Neutron elastic- and inelastic-scattering cross sections were measured from ≈1.5 to 4.0 MeV, at incident-neutron energy intervals of ≈50keV and at ten or more scattering angles distributed between 20 and 160 degrees using neutron detection. Inelastic-scattering cross sections were also determined using the (n; n′,γ) reaction at incident energies from 1.6 to 3.8 MeV at intervals of 0.1 MeV. Gamma-rays and/or inelastically-scattered neutrons were observed corresponding to the excitation of levels at: 909.0±0.5, 1,507.4 ±0.3, 1,744.5±0.3, 2,222.6±0.5, 2,530±0.8, 2,566.4±1.0, 2,622.5±1.0, 2,871.9 ±1.5, 2,880.6±2.0, 3,067.0±2.0, 3,107.0±2.0, 3,140.0±2.0, 3,410.0±2.0, 3,450.0±2.0, 3,504.0 ±1.5, 3,514.0±2.0, 3,556.0±2.0, 3,619.0±3.0, 3,629.0±3.0 and 3,715.0±3.0 keV. The experimental results are discussed in terms of the spherical-optical-statistical, coupledchannels, and core-coupling models, and in the context of previously reported excitedlevel structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01429766
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Effective and simplified hybrid TEA laser design and operation (1984)
    Springer
    Applied physics 33 (1984), S. 99-101 
    Details
    ISSN: 1432-0649
    Keywords: 42.60B ; 42.55D
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A compact hybrid TEA CO2 laser has been developed which, when operated with the low pressure section well below oscillation threshold, demonstrates that little cw gain is necessary to ensure single longitudinal mode (SLM) output pulses with peak power, energy and pulse shape approaching those of normal multi-mode operation. This has allowed reliable SLM operation to be obtained with a very short, wide bore rf-excited low-pressure section, making feasible simple single-mode, large-aperture TEA lasers with high peak powers and energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688354
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Identification of the origins of photoionisation in CO2 TEA lasers (1984)
    Springer
    Applied physics 33 (1984), S. 1-5 
    Details
    ISSN: 1432-0649
    Keywords: 42.55 Dk ; 33.80 eH ; 52.80-s
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In sealed CO2 spark preionised lasers the preionisation is largely due to photoionisation of NO and NO2, in seeded TEA lasers it originates from the low ionisation potential additive used. Unseeded and flowing gas lasers can still be successfully preionised but the source of this preionisation has remained a mystery; previous attempts to isolate and identify low I.P. gaseous impurities have failed. We have now identified these, using a combination of cryogenic impurity concentration and mass spectroscopy and found them to be a complex mixture of hydrocarbons (C2−C7). Of these hydrocarbons, the alkenes are found to be predominantly responsible for the photoionisation and are present in concentrations of ∼ 0.5 ppm. Deliberate addition of one of these alkenes, propene, to a uv preionised CO2 TEA laser was found to enhance the lasers performance at high energy loadings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00690018
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