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  • 1
    Electronic Resource
    Electronic Resource
    Acoustical particle sizing device. (1980)
    s.l. : American Chemical Society
    Environmental science & technology 14 (1980), S. 951-954 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es60168a018
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  • 2
    Electronic Resource
    Electronic Resource
    Radioimmunoassay (1981)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 21 (1981), S. 113-132 
    Details
    ISSN: 0362-1642
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pa.21.040181.000553
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  • 3
    Electronic Resource
    Electronic Resource
    Response of teff (Eragrostis tef(Zucc.) Trotter) to 2, 4-D and MCPA at various growth stages (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 23 (1983), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Teff (Eragrostis tef (Zucc.) Trotter) cv.DZ-01- 354 was sprayed at one-, three-, four-, five- and six-leaf stages with 2.4-D (amine salt) and MCPA (potassium salt) each at 0.75 and 1.5 kg a.e. ha−1. Teff was also grown in different temperature regimes to see the relation between apical and vegetative development. Photomicrographs were made to determine the stage of development of the growing point and dry matter measurements were made to assess the effects of the herbieide. Teff sprayed at the one leaf stage was killed by both herbieides. At the three- and four-leaf stages 2, 4-D at both rates and MCPA at 1.5 kg a.i. ha−1 caused severe leaf deformities and reduced dry weights. Less severe effects were noted at the five-leaf stage indicating that teff was then more tolerant to these herbicides. This coincided with a fully elongated shoot apex. However, when sprayed at the six-leaf stage there was evidence of herbicide-induced panicle deformities. Teff was more susceptible to 2, 4-D than to MCPA and both affected the roots more than the shoots. A close correlation was found between leaf number and the development of shoot apex under all the different temperature and day length conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1983.tb00520.x
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  • 4
    Electronic Resource
    Electronic Resource
    Nutrient Composition of Lamb of Two Age Groups (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 nutrient composition of Spring and Fall lambs were investigated. Seven retail cuts from carcasses of lambs raised under commercial conditions, and representing two age groups (4–4½ mo and 8–9 mo) were analyzed in both raw and cooked form. Separable lean meat was analyzed for proximate composition, 8 vitamins, 8 inorganic nutrients, cholesterol and 12 fatty acids. Except for moisture, total lipid, riboflavin, niacin, Zn and Fe, there were no practical differences in nutrients between cuts or age groups. Thiamin had the lowest cooking retention with a range of 29.0-63.5%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb14961.x
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  • 5
    Electronic Resource
    Electronic Resource
    Leydig Cell Cytoplasmic Mass, Daily Sperm Production, and Serum Gonadotropin Levels in Aging Men (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 438 (1984), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1984.tb38314.x
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  • 6
    Electronic Resource
    Electronic Resource
    Influence of Type (Wooled or Hair) and Breed on Growth and Carcass Characteristics and Sensory Properties of Lamb (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), 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: Comparisons were made between 12 Barbados Blackbelly and 12 St. Croix ram lambs (hair types) and 10 Florida Native and 12 crossbred ram lambs (wooled types) for growth, carcass characteristics and sensory panel evaluation scores. In addition, 14 predominantly hair and 14 predominantly wooled crossbred ram lambs were compared for carcass characteristics and sensory panel evaluation scores. The hair sheep had a lower rate of gain than the wooled types. The wooled breeds and predominantly wooled crossbreds were heavier and graded higher than the hair breeds and predominantly hair types. The sensory panel found the meat acceptable (tenderness, juiciness, flavor and acceptability) from all breeds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb07686.x
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  • 7
    Electronic Resource
    Electronic Resource
    An island mixing effect in the coastal gulf of maine (1983)
    Springer
    Helgoland marine research 36 (1983), S. 347-356 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The analyses of density fields, nitrate and chlorophyll α concentrations, Lagrangian current measurements and remote sensing of sea surface temperatures demonstrated an island mixing effect for Monhegan Island (Gulf of Maine). The island's unique location within the westward flowing arm of a counterclockwise basin gyre and the bathymetry surrounding the island result in a combination of vertical mixing and upwelling to produce chlorophyll maxima on the north and south flanks of the island.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01983637
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  • 8
    Electronic Resource
    Electronic Resource
    Identification and quantitation of adenosine-3′:5′-cyclic monophosphate in plants using gas chromatography-mass spectrometry and high-performance liquid chromatography (1981)
    Springer
    Planta 152 (1981), S. 195-201 
    Details
    ISSN: 1432-2048
    Keywords: Adenosine-3′:5′-cyclic monophosphate ; Nicotiana (cAMP) ; Zea (cAMP) ; Phaseolus (cAMP)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Direct evidence has been obtained for the presence of adenosine-3′:5′-cyclic monophosphate (cAMP) in tobacco (Nicotiana tabacum L.) callus tissue cultures, bean (Phaseolus vulgaris L.) seedlings and immature kernels of sweet corn (Zea mays L.) through the use of a highly specific and sensitive gas chromatography-mass spectrometric assay. Levels of endogenous cAMP ranged from 70 to 126 pmol/g fresh weight. Corresponding levels of cAMP determined for the same samples using radioimmunoassay were consistently three to four times higher. Contrary to previous reports for citrus plants, measurable levels of cAMP could not be detected in young lemon leaves within the limits of detection of the mass-spectrometric assay method. In the case of tobacco callus tissue, the coumarin glucoside, scopolin, which was present in large amounts and showed similar chromatographic behaviour to cAMP, interferred strongly with the mass-spectrometric measurements of cAMP in inadequately purified extracts. The use of high-performance liquid chromatography, in addition to standard chromatographic purification methods, produced highly purified plant extracts for quantitation of cAMP and also provided a method for the separation of cAMP from its 2′:3′-isomer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00385144
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  • 9
    Electronic Resource
    Electronic Resource
    Cryogenic operation of submillimeter quasioptical mixers (1981)
    Springer
    International journal of infrared and millimeter waves 2 (1981), S. 915-924 
    Details
    ISSN: 1572-9559
    Keywords: submillimeter heterodyne systems ; Schottky barrier mixers ; cryogenic cooling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report here the first results obtained by cooling a submillimeter quasioptical mixer, utilizing a Schottky diode in a corner reflector mixer structure. Measurements have been carried out at a wavelength of 434 microns. The diode inverse slope parameter Vo at low current decreases by a factor of 3 upon cooling to 50 K while the minimum system noise temperature of 5600 K (SSB), including the IF contribution, demonstrates a reduction of approximately 40% from the ambient temperature value. We also report improved system noise temperatures at 184 μm and 119 μm wavelengths of 38000 K and 64000 K (SSB), respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01006938
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  • 10
    Electronic Resource
    Electronic Resource
    Mass spectrometric identification of indole compounds produced by Rhizobium strains (1982)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 9 (1982), S. 429-437 
    Details
    ISSN: 0306-042X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The following indole compounds have been unequivocally identified and semi-quantitated in culture supernatants of Rhizobium strains by gas chromatography mass spectrometry: indole-3-aldehyde, trytophol, indole-3-carboxylic acid, indole-3-glycollc acid, indole-3-actic acid, indole-3-glyoxylic acid, N-acethyl-L-tryptophan and indole-3-pyruvic acid, as well as indole-3-acetic acid. The strains included a number of chosen Rhizobium mutants defective in various stages of nodule formation, and the biological implications of the findings are discussed. Two alternative approaches to sample purification were taken, one based primarily on solvent partitioning and the other on high-performance liquid chromatography. The advantages of each method are discussed. Gas chromatographic retention times and mass spectra are given for the TMS derivatives of 17 authentic indole standards.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200091005
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