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  • 1
    Electronic Resource
    Electronic Resource
    Initial stages of epitaxial growth of GaAs on (100) silicon (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 1856-1859 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Direct observations of early stages of molecular-beam epitaxial growth of GaAs on oriented and vicinal (100) Si surfaces are presented. Cross-sectional transmission electron microscopy and plan view scanning electron microscopy images directly reveal three-dimensional island growth for substrate temperatures above 300 °C. Island size, island spacing, surface morphology, and stacking fault defect spacing all increase with substrate temperature for fixed Ga and As fluxes. Below 300 °C, 7-nm-thick films are continuous and uniform. Films deposited on surfaces tilted from (100) coalesce anisotropically with respect to the tilt axis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338029
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Olanzapine overdose (2001)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 56 (2001), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2001.01976-50.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A randomized controlled trial of a brief intervention after alcohol-related facial injury (2003)
    Oxford, UK : Blackwell Science Ltd
    Addiction 98 (2003), S. 0 
    Details
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Aim  To evaluate the effectiveness of a brief motivational intervention on alcohol consumption and misuse in young males with alcohol-related face injury.Design  Randomized controlled trial.Setting  Oral and maxillofacial surgery out-patient clinic in an urban teaching hospital.Participants  One hundred and fifty-one participants were randomized to motivational intervention and control conditions.Interventions  Control was treatment as usual. The intervention was treatment as usual plus a one-session brief motivational intervention administered by a nurse.Measurements  Three sets of measurements were taken at baseline, 3-month and 1-year follow-up. Collateral measurements were also taken at 1-year follow-up. Primary outcome measures were total alcohol consumption, typical weeks consumption and days abstinent in preceding 3 months. Other outcome measures included the Alcohol Use Disorders Identification Test, a short form of the Alcohol Problems Questionnaire, and a measure of satisfaction with social relationships.Results  There was a significant decrease in 84-day total alcohol consumption across the year (P 〈 0.006) and further, a significant effect for the motivational intervention was demonstrated (P 〈 0.029). This pattern was repeated for days abstinent and alcohol consumption in a typical week as well as alcohol-related problems. There was a significantly greater reduction in the percentage of hazardous drinkers in the motivational intervention group (from 60% to 27%, P 〈 0.009) compared to the control group (from 54% to 51%, NS).Conclusion  A proportion of young men change their alcohol consumption following alcohol-related injury. A nurse-led psychological intervention adds significantly to the proportion and magnitude of response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1360-0443.2003.00251.x
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  • 4
    Electronic Resource
    Electronic Resource
    Investigation of mineral waters and soft drinks in relation to dental erosion (2001)
    Oxford UK : Blackwell Science Ltd
    Journal of oral rehabilitation 28 (2001), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A range of still and sparkling mineral waters were assessed for their erosive potential together with comparator soft drinks using in vitro dissolution assays with extracted human teeth and powdered hydroxyapatite. Dissolution levels with all of the mineral waters were very low and for several still waters were undetectable. Sparkling mineral waters showed slightly greater dissolution than still waters, but levels remained low and were of the order of one hundred times less than the comparator soft drinks. De-gassing of a sparkling mineral water reduced its dissolution, but the total levels were still relatively low suggesting that carbonation of drinks may not be an important factor per se in respect of erosive potential. The complex and heterogeneous mineral compositions of mineral waters could influence the dissolution equilibrium of apatite in enamel and controlled addition of several ions to ultrapure deionized water was investigated. Calcium ions led to the greatest reduction in hydroxyapatite dissolution, but their effects were moderated by other ions including magnesium and sulphate. Thus, mineral waters appear to offer a safe alternative to more erosive acidic beverages and their complex mineral ion compositions may positively influence any dissolution processes at the tooth surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2001.00795.x
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  • 5
    Electronic Resource
    Electronic Resource
    Artificial saliva substitutes and mineral dissolution (2001)
    Oxford UK : Blackwell Science Ltd
    Journal of oral rehabilitation 28 (2001), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The erosive potentials of a number of commercially available artificial saliva substitutes have been investigated using an in vitro hydroxyapatite powder dissolution assay. Most of the saliva substitutes examined did not show any appreciable erosive potential, although one product resulted in greater mineral dissolution levels. There appeared to be little correlation between pH and mineral dissolution levels for the different saliva substitutes examined. Whilst saliva substitutes may be of assistance in maintaining some physiological function in patients with impaired salivary flow, it is important to choose a product with low erosive potential where the natural dentition is present.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2001.00803.x
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  • 6
    Electronic Resource
    Electronic Resource
    Blood pressure measurement in volunteers with and without padding between the cuff and the skin (2001)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 56 (2001), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Automated non-invasive arterial blood pressure measurements are made frequently during anaesthesia. Conscious patients often find the measurement uncomfortable. The tissues under the cuff can suffer trauma such as skin creasing, blistering, petechial haemorrhages and even nerve damage. We placed soft padding between the blood pressure measurement cuff and the skin of the upper arm of 140 healthy volunteers, and compared cuff-related skin trauma and arterial blood pressure measurements with and without the padding. Padding was associated with a significant reduction in the frequency and intensity of skin trauma (p 〈 0.0001). There was no significant overall effect of the presence of padding on arterial blood pressure readings. We conclude that the benefit of padding outweighs any compromise to the reliability of arterial blood pressure measurement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2001.02180.x
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    Paper (German National Licenses)
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