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  • 1
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    High-resolution field shaping utilizing a masked multileaf collimator (2000)
    Institute of Physics
    Details
    Publication Date: 2000-07-25
    Print ISSN: 0031-9155
    Electronic ISSN: 1361-6560
    Topics: Biology , Medicine , Physics
    Published by Institute of Physics
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Determination of Amino Acids in Wheat and Barley by Near-Infrared Reflectance Spectroscopy (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The use of NIR spectroscopy for the prediction of amino acid compositions in wheat and barley has been demonstrated. Using 2nd derivative mathematical treatments of log I/R data of ground wheat samples obtained on the Beltsville Universal Computerized Spectrophotometer, the concentration of lysine, threonine, tryptophan and methionine could be predicted with accuracies acceptable for screening purposes. With barley samples low standard errors of prediction (high accuracy) were obtained for I3 amino acids using a research NIR and a commercial bench-type instrument. For both of these instruments, use of 1st derivative mathematical treatments of spectral data gave the best accuracy. Results indicated that NIR techniques may be very useful in plant breeding programs and in the food and feed industry for the rapid and accurate analysis of amino acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb13658.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Carcinogenic Agent without the Condensed Carbon Ring Structure (1941)
    [s.l.] : Nature Publishing Group
    Nature 148 (1941), S. 142-142 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN an earlier publication1 the formula of the highly active synthetic œstrogenic analogue, stilbœstrol, was contrasted with those of œstrone and chrysene. The figures in this earlier letter in NATURE indicated that by ring closure in the case of stilbœstrol a condensed carbon ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/148142a0
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  • 4
    Electronic Resource
    Electronic Resource
    Relationship between Consistency of Wheat Grain and Flour Diastatic Activity (1963)
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 172-173 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Flour of each variety was obtained by milling 1 kg of tempered wheat in a Buhler automatic laboratory mill. Flour diastatic activity was measured by a modification of the Blish and Sandstedt procedure1. Grain consistency was measured by a particle size index test perfected by Symes2 and since ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/200172a0
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  • 5
    Electronic Resource
    Electronic Resource
    Improved Method of Getting Rats' Eggs from the Fallopian Tubes (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 237-237 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ROWLANDS1 described the recovery of rats' eggs by unravelling the Fallopian tubes and squeezing out their contents under low-power magnification. Using this method he obtained an average of 4·9 ± 0·5 (standard error of the mean) ova per rat from the tubes of thirteen normal rats ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/161237a0
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of Stilbœstrol on the Ovaries of Hypophysectomized Rats (1940)
    [s.l.] : Nature Publishing Group
    Nature 145 (1940), S. 388-389 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] VARIOUS authors have reported that small doses of œstrogen injected in the intact adult rat cause an increase in ovarian weight, generally attributed to an increase in the secretion of luteinizing hormone from the pituitary1. Comparatively large oestrogen dosage causes a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/145388c0
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  • 7
    Electronic Resource
    Electronic Resource
    Augmentation of Thyrotrophic Activity (1945)
    [s.l.] : Nature Publishing Group
    Nature 155 (1945), S. 606-606 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE following observations were made during pilot investigations on the purification of thyrotrophin from acetone-dried ox pituitary. An aqueous alkaline (pH 9–10) extract of the dried gland (from which some inactive material had been removed by iso-electric precipitation at pH 5) was brought ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/155606a0
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  • 8
    Electronic Resource
    Electronic Resource
    Specialized Analgesic Effects of β-Hydroxy-α: β-Diphenylethylamine (1944)
    [s.l.] : Nature Publishing Group
    Nature 154 (1944), S. 514-514 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CLINICAL trials by other workers not yet reported have confirmed our original observation1 that β-hydroxy-α: β-diphenylethylamine will relieve pain due to pressure on nerve in patients with inoperable tumours. This was the only type of pain included in our trials, and it is now ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/154514a0
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  • 9
    Electronic Resource
    Electronic Resource
    Morphine-like Properties of Diphenylethylamine and Related Compounds (1943)
    [s.l.] : Nature Publishing Group
    Nature 151 (1943), S. 614-615 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE synthesis of relatively simple stilbene derivatives (stilbœstrol, hexœstrol, etc.) possessing all the physiological properties of the complex naturally-occurring steroid œstrogens1 has suggested that simple analogues might be prepared to imitate the effects of other complex ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/151614a0
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  • 10
    Electronic Resource
    Electronic Resource
    Changes in the cellularity of the cortex of human hairs as an indicator of radiation exposure (1996)
    Springer
    Radiation and environmental biophysics 35 (1996), S. 121-125 
    Details
    ISSN: 1432-2099
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract Growing hair follicles with their rapid cell proliferation would be expected to be sensitive organs to cytotoxic agents such as radiation. Various abnormalities in the hair and hair follicles have been reported in the past. Changes in the number of cells in the newly forming hair cortex have been shown in the mouse to be one of the more sensitive assays for radiation effects, and this approach could provide a basis for a biological dosimeter. Here we show for the first time using hair cortex cell counts some preliminary data indicating that the number of cell nuclei in a unit of length (140 μm) of the cortex of human hairs from the chest and scalp of patients undergoing fractionated radiotherapy falls significantly (P=0.005) by 5%–10% 3 days after the first dose in a fractionated sequence of irradiations. The first dose was delivered on a Friday, and no further exposures were delivered until after the hair sample was taken on the 3rd day (Monday). No significant effect of radiation dose could be detected over the available, limited range of doses studied (5–6.5 Gy with one exit dose sample at 2.6 Gy). Also, the width varies from hair to hair. If the width of the hair is taken into account and the cortical nuclei counts are normalised to the width of each hair, the effects seen at day 3 become slightly more significant (P=0.002), and those at day 5 also become significant (P=0.012). Samples taken on the 5th day after the first (Friday) exposure were also 2 days after the second exposure and 1 day after the third exposure. However, little expression of damage attributable to the 2nd and 3rd exposures was anticipated since their effects would take some time to be expressed in the cortical region examined, which is some distance from the proliferative region of the follicle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02434035
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