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  • 1
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 2901-2903 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: 3 W cw output power has been obtained from aluminum-free, strained-layer double-quantum well (DQW) InGaAs/InGaAsP/InGaP uncoated, 100-μm-wide stripe diode lasers (λ=0.945 μm) grown by low-pressure MOCVD on exact (100) GaAs substrates. The combination of high-band-gap (1.62 eV) InGaAsP confinement layers and the DQW structure provides relatively weak temperature dependence for both the threshold current Ith as well as the external differential quantum efficiency ηd. Furthermore, the series electrical resistance for 100 μm×600 μm stripe-contact devices is as low as 0.12 Ω. As a result, the power conversion efficiency reaches a maximum of 40% at 8×Ith, and decreases to only 33% at the maximum power (i.e., 3 W) at 28×Ith. Low-temperature (12 K) photoluminescence measurements of InGaAs/InGaAsP quantum-well structures exhibit narrow linewidths (〈10 meV) for material grown on exact (100) GaAs substrates, while growths on misoriented substrates exhibit linewidth broadening, as a result of "step bunching.'' Laser structures grown on misoriented substrates exhibit increased temperature sensitivity of both Ith and ηd, compared with structures grown on exact (100) substrates. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 130 (1965), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 12 (1988), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 6 (1982), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Identical adolescent Negro twins presented with multiple bilateral breast adenomata. There were three pure tubular adenomata, one mixed tubular and fibroadenoma, four glandular fibroadenomata and one typical intracanalicular fibroadenoma. Tubular adenomata are exceedingly rare and this report adds a further three to the literature. Furthermore, the close similarity of the glandular fibroadenomata and tubular adenomata, the occurrence of tubular and fibroadenomatous areas in the same tumour, and the simultaneous occurrence of both tumour types in the same genetic setting, point to a close relationship between these types of neoplasm. The simultaneous occurrence of breast adenomata in identical twins suggests, but does not prove, an important genetic contribution to the aetiology of these tumours. The twins were both virgins, and, therefore, it is clear that pregnancy is not a pre-requisite for the development of tubular adenomata, as has been suggested.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Histopathology 42 (2003), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aims:  To assess the accuracy of subjective judgements of a uni-dimensional continuum.Methods and results:  Twenty-four observers were asked to estimate the position of a dot placed between two lines using a 100-point scale. Each observer judged 20 different positions. Ninety-five percent of observations were between −7 and +9 of the true value. The median and the mean value of the estimates for each position were within one or two points of the true value in most cases with a maximum deviation of five. There was perfect correlation between the ranks of the median and the mean and the true value (correlation coefficient +1, P 〈 0.00001). The κ values for interobserver agreement varied from 0.98 for two categories to 0.55 for 10 categories and 0.39 for 20 categories. Information transmitted increased from 0.98 bits with two categories to 2.83 bits with 20 categories.Conclusions:  The experiment indicates that subjective judgements can be accurate but it is necessary to use a large number of categories. One hundred-point scales allow confidence intervals to be calculated and the intervals are reduced if the results from several observers are pooled. The mean and the median of the judgements of a large number of observers are close to objective reality and this approach could be used to define a gold standard of rankings of pathological continua such as cervical dyskaryosis or tumour differentiation. There is a reciprocal relationship between κ values and information transmitted which demonstrates the fallacy of using κ statistics in studies of continua.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 2 (1988), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Therapy for diarrhoea associated with the carcinoid syndrome is often unsatisfactory. In an open study ICS 205-930 (Sandoz Limited), a novel 5HT3-antagonist, controlled diarrhoea in five of six patients studied. This drug may be a useful advance in the symptomatic treatment of the carcinoid syndrome.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 795-798 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A hybrid gene was constructed between the β-lactamase gene of plasmid pBR322 and the cloned coding sequence for rat growth hormone. This gene is expressed in bacteria and growth hormone sequences are detectable by immunological ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Polar biology 12 (1992), S. 713-719 
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary This paper describes a concurrent investigation of individual variation in diet, diving patterns and performance of blue-eyed shags Phalacrocorax atriceps breeding at South Georgia. Within one day individual shags exhibited one of three foraging strategies: short diving (4 birds, all dives 〈/120 s), long diving (11 birds, all dives 〉120 s) and mixed diving (15 birds, predominantly long but with a few short dives). The mean number of dives per day was significantly higher in shags that only made short dives (mean=172.0, SE=43.2) than birds with a mixed diving strategy (mean=40.5, SE=4.7) and birds that made only long dives (mean=30.8, SE=1.8). Diet was assessed using hard remains recovered from pellets regurgitated by the shags. Small nototheniid fish (c. 10 kJ per item) were by far the commonest prey but most pellets contained additional items. The frequency of pellets with additional items of higher energy value than nototheniid fish (10.c. 900 kJ per item), lower energy value (〉1–10 kJ per item) and both higher and lower energy items was strikingly similar to the frequency of shags making long, short and both long and short dives respectively. Predicted aerobic dive limits suggested that during long dives, blue-eyed shags were probably sustained by anaerobic metabolism. Models of prey capture rates demonstrated that for both long and short diving, many items must be caught per dive when birds are feeding on prey at the lower end of the energy range. Predicted capture rates for the commonest recorded prey (small fish) differ markedly between the two diving strategies.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 232 (1971), S. 132-133 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Forty campylobacters from various sources were isolated and cultivated as described before2, and five strains representing the various types in the collection were studied in detail. Washed campy lobacter cells used oxygen rapidly in a dark-type oxygen electrode at 37° C (Rank, Bottisham) when ...
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  • 10
    Publication Date: 2015-05-20
    Description: Altered functional brain network connectivity and glutamate system function in transgenic mice expressing truncated Disrupted-in-Schizophrenia 1 Translational Psychiatry 5, e569 (May 2015). doi:10.1038/tp.2015.60 Authors: N Dawson, M Kurihara, D M Thomson, C L Winchester, A McVie, J R Hedde, A D Randall, S Shen, P A Seymour, Z A Hughes, J Dunlop, J T Brown, N J Brandon, B J Morris & J A Pratt
    Electronic ISSN: 2158-3188
    Topics: Medicine
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