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  • 1
    Electronic Resource
    Electronic Resource
    East Coast Fever of Cattle: 60Co Irradiation of Infective Particles of Theileria parva (1973)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 20 (1973), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Infective particles (IPs) of Theileria parva, the causative organism of East Coast Fever of cattle, were harvested from the tick vector, Rhipicephalus appendiculatus, using an in vitro feeding technic. In a ranging experiment, pairs of cattle were inoculated with aliquots of suspensions of IPs irradiated at doses of 4–137.6 krad. Doses of irradiation in excess of 8 krad appeared to destroy the parasite. In the 2nd and 3rd experiments, groups of 5 cattle were inoculated with aliquots of suspensions containing low and high concentrations of IPs respectively, irradiated at doses of 4–32 krad. In the 2nd experiment, doses of irradiation in excess of 10 krad appeared to destroy the parasite. In the 3rd experiment, at least 1 animal became infected when inoculated with an aliquot of a suspension irradiated at 16 krad. In all experiments, it appeared that increasing doses of irradiation destroyed increasing numbers of IPs. There was no conclusive evidence that IPs which survived irradiation were attenuated, and it appears that vaccination of cattle against ECF is unlikely to be achieved by inoculation of irradiated IPs using the methods described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1973.tb00881.x
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of the herbicide paraquat on the ecology of a reservoir (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 4 (1974), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Toxicity experiments indicated that changes in the fauna following the use of paraquat for weed control were likely to be indirect effects caused by the death and destruction of angiosperms. Generally, invertebrates living amongst the emergent vegetation in the margins of the reservoir and on the sediments were unaffected though the density of the benthic ostracod Cypridopsis vidua increased rapidly after the death of angiosperms. Of the planktonic invertebrates, those which were generally closely associated with the macrophytes were eliminated or survived at lower densities. Many of the invertebrates intimately associated with the angiosperms (e.g. Lepidoptera, Tricho-ptera. Gastropoda) were lost completely or colonized the replacement growth of Chara globularis at reduced densities: these effects were extended to the year after treatment. A few species colonizing Chara were able to establish densities comparable with those found on the angiosperms in the pre-herbicide period but in some cases the time of peak density was delayed.Data from fish gut analyses indicated that there was a change in the diet of the eel following the death of the angiosperms and that this was largely a reflection of the loss, or reduction in density, of many invertebrates associated with the angiosperms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1974.tb00101.x
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  • 3
    Electronic Resource
    Electronic Resource
    A SIMPLE SHEAR PRESS FOR MEASURING TENDERNESS OF WHOLE SOYBEANS (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 38 (1973), 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: A simple shear press instrument for measuring the tenderness of whole soybeans was developed. A perforated plate was forced through a sample of beans by a hydraulic piston and the required pressure of the hydraulic fluid indicated the force required which was related to tenderness of the beans. Soybeans were processed to various degrees of tenderness. Samples were tested by both the simple shear press and a L.E.E. Kramer shear press. The correlation coefficient between these instruments was 0.9933. The average of the coefficients of variation of all samples tested with the simple shear press was 4.61%. This showed that the simple shear press could be used in place of the L.E.E. Kramer shear press for determining tenderness of whole soybeans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1973.tb02856.x
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  • 4
    Electronic Resource
    Electronic Resource
    EFFECT OF NEAR INFRARED ENERGY ON RATE OF FREEZE DRYING OF BEEF (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 36 (1971), 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 effects of vacuum chamber pressure and intensity of near infrared energy on freeze drying rate for 1-in.-thick slices of eye round were investigated. The radiation source was a 500-w quartz iodine lamp. Decreasing the chamber pressure increased the freeze drying rate, especially during the early stages of the drying cycle corresponding to the initial and constant rate periods. The critical moisture content seemed to be about 43%. Different energy intensities of the same radiation characteristics were obtained by varying the distance between infrared heater and product. For distances of 9, 13.5 and 18 in., the inverse-square law was not followed; the drying rate was faster than predicted and appeared to vary linearly with distance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1971.tb04040.x
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  • 5
    Electronic Resource
    Electronic Resource
    EFFECT OF NEAR INFRARED ENERGY ON RATE OF FREEZE DRYING OF BEEF (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 36 (1971), 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: — Infrared radiation was extensively investigated as a heat source for freeze drying 1-in.-thick slices of beef. Two approaches were used to study the effect of spectral regions on the drying rate. First, filters which transmitted definite wavebands in the near infrared were interposed between the heaters and the product. Secondly, different spectral distributions were obtained by varying the voltage applied to the heaters while keeping the total radiating power constant. From the work with filters it was concluded that the short wavelengths, 1 μ or less, gave the most rapid drying. Similarly, the work with voltage variation showed that drying rate was improved by increasing intensity and decreasing wavelength to about 0.95 μ The shortest complete drying cycle using infrared heating was 7.0 hr as compared to 11 hr for the conventional control. Samples were evaluated for surface appearance, rehydration characteristics and organoleptic quality of cooked meat. The quality of samples produced with infrared radiation of short wavelengths predominantly at about 1 μ was judged to be similar to that obtained with conventional heating.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1971.tb04041.x
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  • 6
    Electronic Resource
    Electronic Resource
    MAGNETIC RESONANCE STUDIES OF MEMBRANE AND MODEL MEMBRANE SYSTEMS. V. COMPARISONS OF AQUEOUS DISPERSIONS OF PURE AND MIXED PHOSPHOLIPIDS (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 222 (1973), 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.1749-6632.1973.tb15281.x
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  • 7
    Electronic Resource
    Electronic Resource
    COMPOSITION AND FUNCTION OF PULMONARY SURFACTANT (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 221 (1974), 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.1749-6632.1974.tb28219.x
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  • 8
    Electronic Resource
    Electronic Resource
    ε- (γ-GLUTAMYL)LYSINE CROSS-LINKS: DETERMINATION IN FIBRIN FROM NORMAL AND FACTOR XIII-DEFTCIENT INDIVIDUALS (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 202 (1972), 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.1749-6632.1972.tb16324.x
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  • 9
    Electronic Resource
    Electronic Resource
    BOUND WATER CAPACITY OF CORN STARCH AND ITS DERIVATIVES BY NMR (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 39 (1974), 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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1974.tb01001.x
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of the herbicide paraquat on the ecology of a reservoir (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 3 (1973), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The application of paraquat (1.0 mg/l) to a fishing reservoir was successful in controlling the angiosperms, Potamogeton pectinatus and Myriophyllum spicatum, but a second application (0.6 mg/l) failed to control a replacement growth of the macro-phytic alga, Chara globularis.Paraquat was quickly lost from the water after each application and was largely taken up by the sediments, never more than 6% ofthe initial dose being recorded from the macrophytes. Final analysis of the sediments indicated that about 36% of the total amount of paraquat applied to the reservoir was not recovered.Some changes in the chemistry ofthe water after the first application of paraquat were consistent with the death of the plants (e.g. alkalinity), but there was no evidence that the subsequent decay ofthe plants produced large increases in the concentrations of major nutrients in the water. Although there was no gross deoxygenation there were changes in the oxygen status of the water following the herbicide-induced death ofthe angiosperms.Estimates of the biomass and net productivity of the macrophytes were made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1973.tb00070.x
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