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  • 11
    Electronic Resource
    Electronic Resource
    Mechanism of CO bond scission at alkali promoter sites—IRAS study of the system CO/K/Ni(111) (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 6523-6530 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: IRAS (infrared reflection absorption spectroscopy) has been employed to study the isotopic mixing reaction: 13C16O(a)+12C18O(a)→13C18O(a)+12C16O(a) on Ni(111) with preadsorbed K adatoms. Under high temperature conditions (T〉450 K) where the isotopically mixed CO is being desorbed, it has been shown that the isotopic exchange reaction cannot be detected by IRAS on the surface among CO molecules strongly interacting with K adatoms. This result implies that dissociation of CO occurs at K-promoted Ni sites followed by surface diffusion of C(a) and O(a) away from the K promoter site. Statistical recombination of C(a)+O(a) occurs with concomitant CO desorption on Ni(111) sites some distance from K centers. The empty K-promoted sites may be refilled by surface diffusion of CO from outside. Thus, alkali metal promotion of C–O bond scission may act via a "feeder-site'' mechanism connecting promoter atoms to external surface sites via surface diffusion of atomic C and O species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452444
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  • 12
    Electronic Resource
    Electronic Resource
    Efficient and selective population of high vibrational levels by stimulated near resonance Raman scattering (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 87 (1987), S. 5064-5076 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We report the successful application of an optically pumped molecular beam laser for efficient and selective population transfer from v″=0 to high lying vibrational levels of Na2 in the electronic ground state. More than 50% of the molecules in a thermally populated rotational level of v″=0 can be transferred to a state v″(very-much-greater-than)1 with typically ≥75% of the molecules excited out of the initial state found in the predetermined end vibrational level and approximately ≤25% distributed over other levels according to the Franck–Condon factors. The applicability of this technique to the study of collision processes involving vibrationally highly excited levels is discussed. This work also contributes in general to a better understanding of optically pumped dimer lasers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.453674
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  • 13
    Electronic Resource
    Electronic Resource
    RNA/cDNA hybridization studies of UK isolates of barley yellow mosaic virus (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 38 (1989), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The RNA components of two isolates of BaYMV from Streatley and Wiltshire were analysed by agarose gel electrophoresis. Northern blots of extracts of both isolates analysed with random-primed cDNA probes to RNA1 and 2 of the Streatley isolate showed little or no sequence homologies between the two isolates, confirming other evidence that they should be considered as different viruses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1989.tb02137.x
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  • 14
    Electronic Resource
    Electronic Resource
    Dental caries and dental treatment in the primary dentition in an industrialized South African community (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 13 (1985), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract This paper reports an examination of dental caries in the primary dentition of 2–5-yr-oId white children in an industrialized South African city, in 1981 and 1983. There was a decrease in dental caries prevalence over the 2-yr period accompanied by an increase in dental treatment in 3–5-yr-olds. Treatment, however, remains low. Socioeconomic status had a varying effect on the trends, but in general there was a greater reduction in dental caries in the lower socioeconomic areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1985.tb00437.x
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  • 15
    Electronic Resource
    Electronic Resource
    Dental caries in South African white children aged 1–5 years (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 6 (1978), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: abstract The dentitions of 499 white preschoolchildren aged 1–5 years from a low fluoride area were examined with mirror and probe. The dmft values ranged from 1.0 ± 2.0 at 1 year of age to 5.1 ± 4.5 at 5 years of age while the overall mean for the group was 3.7 ± 4.1. “Rampant” caries prevalence varied according to the definition used. It is suggested that for epidemiologic studies rampant caries should be defined as a dmft. value of 5 or more and that labial caries should be regarded as a specific entity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1978.tb01125.x
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  • 16
    Electronic Resource
    Electronic Resource
    Oral health of South African Black (Xhosa) mine recruits (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 7 (1979), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The oral health of 100 rural Black Xhosa men commencing employment on the gold mines was examined. Dental caries was present in 68 %, the mean DMFT per mouth was 2.5 (s.d. 2.8) while the mean DMFT per carious mouth was 3.7 (s.d. 2.7). Oral hygiene was good and periodontal disease uncommon. Although the frequency of individuals with dental caries has increased since studies on similar groups were made 40 years ago, the severity of the disease in affected individuals has remained static.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1979.tb01233.x
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  • 17
    Electronic Resource
    Electronic Resource
    The dmfs and dmft of young South African children (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 17 (1989), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – As part of a series of frequent epidemiological field studies to determine caries prevalences in the primary dentition of young South African children, 1436 children of 1–4 yr of age from five ethnic groups were examined. Using WHO diagnostic criteria decayed, missing, and filled surfaces were determined with mirror and probe and caries free, dmfs, dfs, ds, mfs, and dmft scores were calculated. The investigation has shown that urban coloured and Indian children have the highest caries prevalences and urban white children have the lowest. It is suggested that the percentage of caries-free children should be used to set goals for reduction in caries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1989.tb01824.x
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  • 18
    Electronic Resource
    Electronic Resource
    Binding of Meat Pieces: Influence of Some Processing Factors on Binding Strength and Cooking Losses (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 51 (1986), 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: Evacuation of the chamber of the press used to form flaked beef into a restructured meat product (patty) did not affect the binding strength of the cooked patty but under some conditions decreased the cooking loss. In studies using patty mixes containing 0–1.0% added sodium chloride, meat binding strength increased with decrease in the temperature of the mix when formed into patties over the temperature range - 1° to -5°C. The largest effect generally occurred between - 1° and -2°C. However, the effect was only noted in patties that were frozen (-30°C) before being cooked for assessment. With decrease below - 1°C of the temperature of patties when pressed, cooking losses increased for the patties without added salt but decreased for those with added salt (0.5% or 1%). Change in the pressure applied to form the patty (in the range 1.4–13.7 MPa) can affect binding strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1986.tb13923.x
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  • 19
    Electronic Resource
    Electronic Resource
    BINDING OF MEAT PIECES: AN INVESTIGATION OF THE USE OF MYOSIN-CONTAINING EXTRACTS FROM PRE- AND POST-RIGOR BOVINE MUSCLE AS MEAT BINDING AGENTS (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), 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 feasibility of using myosin, extracted from post-rigor bovine muscle, as a binding agent for meat pieces, was examined. Crude myosin was extracted with solutions containing various concentrations of sodium chloride (salt) and sodium tripolyphosphate (TPP). Maximum yield was obtained using 1M salt and about 0.25% TPP in the extracting solution. Binding strength, i.e. the strength with which pieces of meat adhere, of crude myosin extracted with 1M salt and 0.15, 0.25 or 0.5% TPP were not significantly different and were only slightly lower than that for crude myosin extracted from pre-rigor muscle. The myosin preparations had binding strength much greater than that reported previously for actomyosin. These results show that crude myosin extracted from postrigor bovine muscle has a potential use as a meat binding agent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb06458.x
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  • 20
    Electronic Resource
    Electronic Resource
    BALANCED INCOMPLETE BLOCK DESIGNS WITH A REFERENCE SAMPLE IN EACH BLOCK (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), 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: Intrablock analysis of balanced incomplete block designs with a reference sample in each block was discussed by Gacula (JFS 43: 1461). This note illustrates the importance of obtaining treatment estimates with recovery of interblock information, particularly when blocking has proved ineffective and presents several formulas of Gacula in a more natural form.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb09145.x
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