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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 67 (1945), S. 926-928 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 68 (1946), S. 1109-1112 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 70 (1948), S. 4247-4248 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 2990-2993 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The two possible causes of depth inhomogeneities of the microstructure of porous silicon are changes in the HF concentration with depth and a varying chemical etching rate of the porous silicon layer. During anodization chemical etching will become important for microporous silicon — e.g. p-porous silicon — due to the large internal surface area, especially at long etching times. On the other hand, a considerable decrease of the HF concentration will occur during etching with high current densities to produce p+-porous silicon with high porosities. We have investigated the depth inhomogeneity of porous silicon layers by spectroscopic ellipsometry, Raman spectroscopy and photoluminescence measurements. From a line shape analysis of the Raman signal a size distribution of nanocrystals is deduced. For p-porous silicon smaller nanocrystals are found near the surface of the layer; for p+-porous silicon etched with high current densities smaller nanocrystals are found near the porous silicon/substrate interface. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Genetics 8 (1974), S. 1-13 
    ISSN: 0066-4197
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 42 (1994), S. 2836-2843 
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Carfax Publishing, part of the Taylor & Francis Group
    Addiction 96 (2001), S. 0 
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Aims. To assess the relative importance of various adverse childhood experiences for the occurrence of later suicidal behavior in terms of experienced suicide attempts and suicidal ideation among drug addicts, and to assess possible gender differences in these associations. Design. Cross-sectional survey. Setting. Residential and outpatient treatment units for drug addicts in Norway. Participants. National sample of 800 drug addicts admitted to treatment in 1992-93. Measurements. Self-reports of attempted suicide (life-time prevalence) and suicidal ideation (1 month prior to admission). Data collected from structured interviews with therapists. Findings. A total of 38.0% of the drug addicts reported having attempted suicide once or several times; the proportion was higher among those who reported various adverse experiences during childhood (sexual or violent assaults, bullying, parents' alcohol abuse, parents' psychiatric problems, school adjustment problems and own psychiatric problems), and increased with number of areas of such adverse childhood experiences. Forty-two per cent of the clients reported suicidal ideation in the month prior to admission, displaying the same kind of associations with adverse childhood experiences, and also a significant association when controlling for previous suicide attempts. There were relatively small gender differences in self-reported suicidal behavior, the proportion being somewhat higher among women, but only among those with no or few adverse childhood experiences. Conclusions. Self-reported suicidal behavior and ideation among drug addicts is highly prevalent and more so with increasing number of areas of childhood adversities.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Carfax Publishing Limited
    Addiction 94 (1999), S. 0 
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Aims. Assessment of prevalence of non-fatal overdoses and suicide attempts and predictors of and co-variation between such behaviours among drug addicts. Design. Cross-sectional survey. Setting. Inpatient and outpatient treatment units in Norway. Participants. National sample of 2051 drug addicts admitted to treatment in Norway in 1992-93. Measurements. Self-reports of suicide attempts and of life-threatening overdoses from structured interviews with therapists. Findings. Almost half (45.5%) the clients reported having experienced one or more life-threatening overdoses. A third (32.7%) reported one or more suicide attempts. Suicide attempts were more often reported among those who had overdosed (odds ratio (OR) = 6.3), and the number of life-threatening overdoses and number of suicide attempts were positively and moderately associated (Pearson's r = 0.39). Drug addicts who had exhibited both life-threatening behaviours were characterized by polydrug use, poor social functioning and HIV risk-taking behaviour. Suicide attempters were also characterized by psychiatric problems. Conclusions. The substantial co-variation between suicide attempts and drug overdose suggests some common underlying causal factors. These seem to be related to heavy drug use and poor social integration.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Addiction 100 (2005), S. 0 
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Aims  To assess the association between drinking behaviour among adolescents with both immigrant and native backgrounds with aspects of acculturation.Design  Cross-sectional school survey among 15–16 year olds.Setting and participants  All students, a total of 8361, in 10th grade during spring 2000 and 2001 in Oslo, Norway with response rate 88.3%. The sample consisted of 1213 students with an immigrant background and 4627 students with a Norwegian background.Measurements  Indicators of the length of the acculturation process were assessed as first versus second generation and in terms of length of stay in Norway. The proportion of Muslim students in school was an indicator of social environment ‘dryness’. Drinking behaviour was assessed as drinking alcohol ever, drinking frequency and intoxication frequency.Findings  A smaller proportion of immigrant students were current drinkers, frequent drinkers and drank to intoxication compared with adolescents with a Norwegian background. Adjusted two-level analyses showed that alcohol drinking was less common among immigrant students with a short stay in Norway and with a large proportion of Muslim students in school. In those with a Norwegian background there was a larger proportion of abstainers, and those who drank did so less frequently and were less frequently intoxicated the larger the proportion of Muslim students there was in their school.Conclusion  Drinking behaviour among adolescents in a multicultural and heterogeneous society seems to reflect a bi-directional acculturation process where the majority population tend to adapt to the behaviours of the immigrant population which in turn, to a varying degree, tends to adapt to the behaviour of the majority population.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Addiction 100 (2005), S. 0 
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Type of Medium: Electronic Resource
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