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  • 1990-1994  (179)
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  • 1
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    The Magnetic Resonance Imaging Log characterized by comparison with petrophysical properties and laboratory core data (1991)
    Society of Petroleum Engineers
    In:  Paper SPE 22723 at the 66th Ann. Techn. Conf. and Exhib., Houston, Society of Petroleum Engineers, vol. 10, no. GL-TR-89-0314, pp. 627-635
    Details
    Publication Date: 1991
    Keywords: Borehole geophys. ; Applied geophysics ; NML ; Laboratory measurements ; Physical properties of rocks ; Fluids
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
    Electronic Resource
    Electronic Resource
    Genetic epidemiology of Down's syndrome in Shetland (1991)
    Springer
    Human genetics 〈Berlin〉 87 (1991), S. 57-60 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Pedigrees of all known cases, on Shetland, of Down's syndrome, cytogenetically confirmed as trisomy 21, and of a control for each patient matched by birth date, sex and birth place, were traced over a minimum of eight generations. Mean kinship coefficients in all pairs of Down's syndrome patients and in all pairs of controls were similar. The kinship between the father and mother of each case shows that the parents are more closely related than the general level of relationship in the population, suggesting some recessive element in the etiology. It is argued that the effect of the resulting increased homozygosity would be to prevent the loss of the conceptus that occurs in the majority of trisomy 21 conceptions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01213093
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Calcium-Modulated Proteins: Targets of Intracellular Calcium Signals in Higher Plants (1992)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology and Plant Molecular Biology 43 (1992), S. 375-414 
    Details
    ISSN: 1040-2519
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pp.43.060192.002111
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Role of Covalent and Noncovalent Interactions in Cell Toxicity: Effects on Proteins (1992)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 32 (1992), S. 471-510 
    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.32.040192.002351
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    DONALD REEVE, CBE, FEng (Fellow) (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 8 (1994), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1994.tb01150.x
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A comparison of different energy levels in straw/concentrate mixtures used for partial storage feeding of dairy cows (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 45 (1990), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1990.tb01954.x
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of feeding fodder beet and concentrates with different protein contents on dairy cows offered silage ad libitum (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 49 (1994), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In two changeover design experiments, fifteen early- and sixteen late-lactation cows were used to investigate the effects of offering food beet with ad libitum grass silage and concentrates with different CP content on milk yield and quality. In Experiment 1 (early lactation) cows were offered no fodder beet (0) or 4 kg DM d−1 (4) in conjunction with one of three concentrates containing 159, 191 or 244g CP kg−1 DM (L.M.H.). Treatments were therefore 1L/0, 1L/4, 1M/0, 1M/4, 1H/0 and 1H/4. In Experiment 2 (late lactation) cows were offered the same level of fodder beet in conjunction with two concentrates containing 129 and 229 (L,H) g CP kg−1 DM. Treatments were therefore 2L/0, 2L/4, 2H/0 and 2H/4.In both experiments feeding fodder beet reduced silage DM intakes (P 〈 0·001) and increased total DM intake (P 〈 0·05 to P 〈 0·001). The substitution rate (r) ranged from 0·46 to 0·59kg of silage DM (kg−1 fodder beet DM).In Experiment 1, fodder beet tended to increase milk yield, composition and yield of constituents, but the effect was statistically significant for milk protein content only (P 〈 0·01). In Experiment 2, milk yields for 2L/0, 2L/4, 2H/0 and 2H/4 were 11·3, 12·1, 11·7 and 12·5 kg d−1 respectively (s.e.d. 0·43, non-significant), fat contents were 44·4, 47·3, 44·3 and 46·8g fat kg−1 respectively (s.e.d. 0·73, P 〈 0·001), protein contents were 34·3, 35·6, 35·3 and 36·2 g protein kg−1 respectively (s.e.d. 0·28, P 〈 0·001), fat yields were 494, 574, 512 and 579 g fat d−1 respectively (s.e.d. 20, P 〈 0·001) and protein yields were 385, 426, 407 and 442 g protein d−1 (s.e.d. 13, P 〈 0·01) respectively.Increasing CP in the concentrate significantly increased milk yield in Experiment 1 (23·9, 22·5, 23·5, 23·8, 26·2, 26·5kg d−1 for 1L/0, 1L/4, 1M/0, 1M/4, 1H/0 and 1H/4 respectively, P 〈 0·05). Higher CP in concentrate also resulted in significantly increased milk protein yield in early-lactation (P 〈 0·001) and milk protein content in late-lactation (P 〈 0·01) cows. There was a significant interaction between fodder beet and concentrate CP content for milk protein yield (P 〈 0·001) in Experiment 1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1994.tb01974.x
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  • 8
    Electronic Resource
    Electronic Resource
    Comparison of a straw/concentrate mixture with silage as a buffer feed for grazing dairy cows (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 45 (1990), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Over a 24-week period during the 1986 summer, three groups of January- to March-calving dairy cows were either grazed conventionally (G) or grazed between morning and afternoon milkings and housed overnight and offered grass silage (Si) or a straw/concentrate mixture (St) ad libitum. The straw/concentrate mixture contained proportionately, 0-33 long barley straw, 0·28 ground barley, 0·12 soya bean meal, 0·25 molaferm and 0·22 minerals. The metabolizable energy (ME) and crude protein (CP) contents of the silage fed in weeks 1-8 and weeks 9-24 were 9-5 and 10−6 MJ kg MD−1 and 160 and 191 g kg DM−1 respectively. The straw mix had an ME content of 10−1 MJ kg DM−1 and CP content of 134 g kg DM−1. Partial storage feeding with silage or a straw/concentrate mixture led to a decrease in estimated herbage DM intake. The feeding of the straw/concentrate mixture increased total DM intake, but the estimated total ME intake was similar for treatments G and St. The intakes (kg DM d−1) for treatments G, Si and St were respectively, herbage 11·7,6·8,4·1; total l3·5,13·6,15·0; total ME intake (MJd−1) 163, 155, 163.Animal performance was, for treatments G, Si and St respectively: milk yield (kg d−1) 19·2, 17·5, 19·1 (s.e.d. 0-87); milk fat content (g kg−1) 36·9, 37·6, 37.1 (s.e.d. 1.22); milk protein content (g kg−1) 35·3, 32·9, 33·4 (s.e.d. 0·76).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1990.tb02188.x
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  • 9
    Electronic Resource
    Electronic Resource
    Enhanced slow-wave beach heating of mirror plasmas with two-ion species (1992)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 4 (1992), S. 1475-1485 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Plasma heating in the ion-cyclotron range of frequencies has been examined in a beach-heating configuration of the central cell of the Phaedrus-B tandem mirror [Phys. Rev. Lett. 51, 1955 (1983)] during scans of the ion species ratio of hydrogen–helium (H–He) and hydrogen–deuterium (H–D) plasmas. Observed changes in the radial profiles of wave magnetic field and plasma parameters during the scans provide evidence of varied fast- and slow-wave eigenmode excitation and absorption. These changes are shown to be in agreement with those expected from wave accessibility considerations. Optimal peak parameters in the plasma core, ne=1.0×1013 cm−3, Te(parallel)=20 eV, Ti(parallel)=140 eV, Ti⊥=450 eV, and β=0.26 at midplane, were obtained for moderate helium or deuterium ion fractions (puffed nHe/ne=nD/ne ∼0.25). These parameters represent a significant increase in plasma energy density over that obtained under the same conditions with "pure'' hydrogen plasmas: ne=7.0×1012 cm−3, Te(parallel)=25 eV, Ti(parallel)=80 eV, Ti⊥=300 eV, and β=0.12.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860058
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  • 10
    Electronic Resource
    Electronic Resource
    Control of plasma shape and performance of the PBX-M tokamak experiment in high-βt /high-βp regimes (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 1271-1279 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The highly indented plasmas of the PBX-M tokamak experiment [Plasma Physics and Controlled Nuclear Fusion Research (IAEA, Vienna, 1989), Vol. 1, p. 97] have reached plasma regimes of both high volume-averaged beta (βt), and high-beta poloidal (βp), and show evidence of the suppression of external surface modes by the passive stabilizing system. Values of βt up to 4.0 I/aB (% MA/m T) with Ti(0)≈4 keV have been obtained. A magnetohydrodynamic analysis of plasmas with βp=2.0 indicates that these plasmas are near the threshold of the second stability regime. A value of βt of 6.8% has been reached with Ti(0)〉5 keV and an indentation of 28%. Control of plasma shape is accomplished with a feedback system that uses a moment expansion about a single equilibrium and is augmented by time-dependent waveforms to redefine plasma shape. Diagnostics to measure the safety factor q have been developed and used to make accurate measurements of q(r) and to verify changes made in q(0).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859542
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