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  • 1
    Electronic Resource
    Electronic Resource
    A Time for Parting: the Negro during the Coolidge Years (1969)
    Cambridge : Cambridge University Press
    Journal of American studies 3 (1969), S. 177-199 
    Details
    ISSN: 0021-8758
    Source: Cambridge Journals Digital Archives
    Topics: English, American Studies , History , Political Science , Sociology , Economics
    Notes: Calvin Coolidge became President on the morning of 3 August 1923. He was to hold that office for five years, six months, and thirty days, during which time he would have a splendid opportunity to secure the destiny of his party. Some of the activities of several of the more seedy characters of the Harding Administration were about to become public knowledge, while the one-interest basis on which Republican power rested was becoming increasingly obvious. In the scandals which followed his accession, Coolidge acquitted himself well, the ‘anti-propaganda’ technique he adopted in fighting the revelations bringing him, it might be argued, an even greater victory at the polls in 1924 than he otherwise would have received. But the party's destiny went well beyond the Twenties, and the success, or lack of it, which would greet the Republicans in the decades beyond depended in large fashion on Coolidge's efforts to pry his party from the rut in which it had firmly planted itself. For by the time Coolidge entered the White House the Republicans had violated a basic canon of practical politics by allowing themselves to become the spokesmen of one interest, to the neglect of those others which, if they ever got together, could easily put an end to Republican dominance. More broadly, the party by this time was a rather exclusive vehicle in which, oblivious to others around them, serenely rode whites, Anglo-Saxons, and Protestants. There were others in this vehicle but by the post-war period they were mostly in the rumble seat, and none too happy about it.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0021875800008112
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  • 2
    Electronic Resource
    Electronic Resource
    Some Aspects of the Search for Invariants (1950)
    Cambridge : Cambridge University Press
    Bulletin of the British Society for the History of Science 1 (1950), S. 71-72 
    Details
    ISSN: 0950-5636
    Source: Cambridge Journals Digital Archives
    Topics: History , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0950563600001688
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  • 3
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    The onset of cellular convection in a fluid layer with time-dependent density gradients (1969)
    Cambridge University Press
    Details
    Publication Date: 1969-04-14
    Description: Onset times for convection induced by buoyancy forces have been measured. Results on three aqueous systems are summarized in terms of a critical value for a time-dependent Rayleigh number. Because of the presence of minute traces of unavoidable surface-active contaminants, a ‘free’ water surface behaved as if it were inflexible and laterally rigid so far as determining first convective motion was concerned. The form of the onset motion was observed with schlieren photography for both top and side view. The pattern at onset was frequently in the form of plunging rings. Surface effects were demonstrated with an organic liquid layer in which onset times were measured for convection driven by surface tension gradients as well as by buoyancy forces. The data are compared with some recent predictions of linear stability analyses.
    Print ISSN: 0022-1120
    Electronic ISSN: 1469-7645
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Cambridge University Press
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  • 4
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    Protein, lysine and feed intake level effects on pig growth (1969)
    Cambridge University Press
    Details
    Publication Date: 1969-12-01
    Description: SummaryA total of 512 pigs were given from 50 lb live weight one of 16 diets (four lysine levels at each of 12, 14, 16 and 18% protein), at one of four levels of intake. They were killed at 100, 150, 200 or 250 lb live weight and the carcasses jointed in a standard manner and right sides dissected into lean meat, fat, skin and bone.Mean percentage proportion of shoulder, middle and ham joints in the dressed sides at the four weights was 36·3, 36·4 and 27·3; 35·4, 37·9 and 26·7; 34·5, 39·6 and 25·9; and 33·8, 40·7 and 25·5, respectively. Mean percentage lean meat at the four live weights was 61·5, 59·9, 56·7 and 54·2 and the mean percentage fat was 20·7, 24·4, 29·4 and 32·8.Carcass quality was influenced significantly by dietary treatment and sex. Increasing the level of protein in the diet up to 16, 16, 14–16 and 14%, respectively, for the four live weight groups gave a significant increase in carcass leanness. Increasing the level of lysine in the diet did not have a very marked effect on carcass composition, while increasing feed intake to the highest level produced fatter carcasses at all weights. Carcasses of males were fatter and with a lower proportion of ham than those of females. Interactions involving dietary treatments and sex were described.Chemical composition of the m. longissimus dorsi was not altered markedly by dietary treatment or sex but dry matter and intramuscular fat content rose with increasing weight. Protein content of the dry matter remained fairly constant at all weights, while colour and shear value rose with increasing weight but were not significantly influenced by dietary treatment or sex.The pH values of the m. multifidus dorsi just after slaughter or on the day following were not markedly affected by dietary treatment, sex or weight.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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  • 5
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    Protein, lysine and feed intake level effects on pig growth: I. Main effects (1969)
    Cambridge University Press
    Details
    Publication Date: 1969-06-01
    Description: SUMMARYA total of 512 pigs were given from 50 lb live weight one of 16 diets, i.e. with 4 lysine levels at each of 12, 14, 16 and 18% protein, at one of 4 levels of intake. They were killed at 100, 150, 200 or 250 lb live weight.Live-weight gain was not improved significantly by increasing the protein level above 16, 14, 12and 12%, respectively, for the 50–100, 100–150, 150–200and200–2501bstages. However, conversion of feed to live-weight gain was improved significantly during the 50–100 lb stage by increasing the protein to 18%. Gain in lean meat and in the efficiency of conversion of feed to lean meat were improved by increasing the above protein levels slightly.Live-weight gain was not improved significantly by increasing the lysine level above 1·04, 0·74, 0·70 and 0·59%, respectively, for the 50–100, 100–150, 150–200 and 200–250 lb stages. However, conversion of feed to live-weight gain was improved significantly during the 50–100 lb stage by increasing the lysine level to 1·22%. Raising the lysine level at each level of protein had no significant effect on the rate and efficiency of lean meat gain.Live-weight gain was significantly improved by increasing the level of feed intake almost to ad libitum levels for the 50–100, 100–150 and 150–200 lb stages. There was a suggestion of a similar effect in the 200–250 lb pigs although it was not statistically significant. Conversion of feed to live-weight gain was improved in the 50–100 lb pigs only by increasing the level of feed intake: in the older pigs increasing the level of feed intake caused a worsening in feed conversion ratio. Increasing the level of feed intake gave a significant improvement in rate of lean meat gain but a significant worsening in the efficiency of conversion of feed to lean meat during all stages up to 200 lb.Interaction effects of these factors and sex, on growth performance, are described.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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  • 6
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    The effect of sex on growth and carcass quality in the bacon pig (1965)
    Cambridge University Press
    Details
    Publication Date: 1965-04-01
    Description: Castration of males is a long-established practice in animal husbandry, and although the use of boars rather than hogs was advocated by Fitzherbert in 1534 the use of castrates in pig production has continued to the present day.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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  • 7
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    Growth of broilers on diets containing field beans (Vicia faba L.) (1968)
    Cambridge University Press
    Details
    Publication Date: 1968-12-01
    Description: SUMMARYDuring the 4· to 9·week stage Ross Chunky H broilers were fed on diets containing two varieties of field beans at 0, 10, 20 and 30 % rates of inclusion. No significant treatment effects were observed on live-weight gains, amounts of food eaten or food-conversion ratios.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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