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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 21 (1899), S. 972-975 
    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
    Springer
    Acta neuropathologica 19 (1971), S. 51-69 
    ISSN: 1432-0533
    Keywords: Human Skeletal Muscle ; Autopsy Material ; Biometric Analysis ; Fiber Diameter ; Histograms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study represents an effort to tabulate the normal mean cross-sectional diameters of human striated muscle fibers in post-mortem material ranging in age from five months gestation through senescence. Age, sex, height and weight of the subjects were taken into account. Cases with neuromuscular illnesses or inanition were specifically excluded. All measurements represent mean narrow fiber diameter of celloidin embedded material sampled at the maximum diameter of the muscle belly. Noteworthy findings include a rapid increase in mean narrow diameter of all muscles except gastrocnemius from gestation to the immediate neonatal period. This was followed by a slower gradual increase in fiber diameter until the age of puberty when again a rapid increase was noted in all muscles except the superior rectus. Following puberty, the superior rectus diameter remained relatively constant throughout life. The sternomastoid, deltoid, biceps, sartorius, quadriceps and gastrocnemius continued a gradual steady increase in fiber size until the late third to early fourth decade, thereafter slowly diminishing in size by the ninth decade. Data are presented to show that the fusiform shape of the biceps muscle cannot be entirely attributed to the fusiform shape of the individual fibers. Particular care must be taken in selecting the level of measurement as fiber diameters appear to be significantly larger near the maximum breadth of the muscle bely. Factors are presented for conversion of measurements between various methods of histologic processing. A useful rule is that the ratio of the sizes of fresh-frozen, fixed-frozen, celloidin and paraffin embedded fibers is roughly 10:9:8:7.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 175 (1955), S. 1012-1015 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EARLY in 1948, it was shown that n-mesons could be produced in numbers by the bombardment of matter by a-particles produced in the Berkeley synchrocyclotron, and shortly afterwards it was proved that high-energy protons in the same machine were even more effective. Tho threshold for 7t-production ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 219 (1968), S. 848-849 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A block diagram of the system we have used is shown in Fig. 2. The LINAC electron pulse strikes the water-cooled tantalum target producing a very high flux of gamma rays. A (?,n) reaction in the target gives high energy neutrons with an isotropic distribution. The moderator, a 4 in. x 4 in. x 1 in. ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 803 (1996), 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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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Marine mammal science 15 (1999), S. 0 
    ISSN: 1748-7692
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: To assess large-whale stocks following the cessation of land-based South Georgia whaling in 1965, we report three independent sighting databases: a cruise in 1997, observations from Bird Island (NW of South Georgia) between 1979 and 1998, and mariner sightings between 1992 and 1997. All species were rare, with sightings of southern right whales being the most common event. Two right whales photographed off South Georgia matched animals known from Peninsula Valdés, Argentina, a population known to be growing at 7%per annum. In contrast, blue and fin whales appeared to be less abundant. A single blue whale mother-calf pair was observed off the Shag Rocks in February 1997. Extirpation of animals from this particular feeding ground is the most likely reason for ongoing low numbers of all species. Other factors may include competition for krill by traditional predators such as penguins and seals and more recently by humans, an unusually high rate of natural mortality, habitat change such as alteration in sea ice coverage, and/or the impact of ongoing whaling. The history of this critical area of large-whale habitat and this report demonstrate the need for improved, consistent longterm monitoring of population trends for these depleted stocks.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The three-dimensional structure of MerA from Bacillus sp. strain RC607 can be clearly divided into three parts: the two N-terminal regions (residues 1-166), the core (167-616), the equivalent of the glutathione reductase structure, and the C-terminal extension (residues 617-631). This partition is ...
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0843
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A total of 23 women with stage II breast cancer receiving adjuvant cyclophosphamide, methotrexate and 5-fluorouracil had detailed pharmacokinetic monitoring performed on the first and third courses of therapy. The area under the concentration time curve (AUC) of each of these three drugs varied by a factor of 3–4 among patients. No systematic change in pharmacokinetics between the first and third courses was seen for cyclophosphamide, methotrexate or 5-fluorouracil, and the mean AUC for each of the three drugs did not change. However, significant intrapatient variability in drug pharmacokinetics was observed for all three drugs such that the AUC, clearance and half-life in an individual on the third course could not be reliably predicted from data generated on the first course. On the basis of these results, cyclophosphamide, methotrexate, and 5-fluorouracil pharmacokinetic data from one treatment would not be useful information from which the doses for subsequent courses could be determined.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0843
    Keywords: Key words 5-Fluorouracil ; Interferon ; Colorectal cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Modulation of 5-fluorouracil (FUra) using leucovorin (LV) is a standard treatment approach in patients with metastatic colorectal cancer. Modulation of FUra with interferon alfa has also shown some promise. Laboratory data have demonstrated increased cytotoxicity when FUra is combined with both LV and interferon. The current study examined the effects of double modulation of FUra using LV and interferon.Patients with measurable advanced colorectal cancer received bolus FUra 375 mg/m2 plus LV 20 mg/m2 daily for 5 days, repeated every 28 days. Recombinant human interferon alfa-2a, 3 million IU/m2 subcutaneously, was given daily on the days of chemotherapy then three times weekly. There was one complete response and nine partial responses (10/41) seen for an overall response rate of 24% (95% CI 12.0–40.0%). Overall, 70% of patients experienced one or more episodes of nonhematologic toxicity of grade 3 or more. Weight loss was common, with a mean decrease of 2.9 kg over the first two months (P〈0.0001). Improvements in tumor-related symptoms were balanced by increased fatigue and a deterioration in body weight and performance status. There was no evidence of progressive changes in FUra metabolism from interferon usage.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0843
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A total of 23 women with stage II breast cancer receiving adjuvant cyclophosphamide, methotrexate and 5-fluorouracil had detailed pharmacokinetic monitoring performed on the first and third courses of therapy. The area under the concentration time curve (AUC) of each of these three drugs varied by a factor of 3–4 among patients. No systematic change in pharmacokinetics between the first and third courses was seen for cyclophosphamide, methotrexate or 5-fluorouracil, and the mean AUC for each of the three drugs did not change. However, significant intrapatient variability in drug pharmacokinetics was observed for all three drugs such that the AUC, clearance and half-life in an individual on the third course could not be reliably predicted from data generated on the first course. On the basis of these results, cyclophosphamide, methotrexate, and 5-fluorouracil pharmacokinetic data from one treatment would not be useful information from which the doses for subsequent courses could be determined.
    Type of Medium: Electronic Resource
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