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  • Cambridge University Press  (59)
  • 1970-1974
  • 1965-1969  (59)
  • 1969  (59)
  • 1
    Publikationsdatum: 1969-08-01
    Beschreibung: SUMMARYGestating female pigs received either a low or a high intake per day of diets containing either a low or high protein concentration. A change in the composition of both diets occurred after 2 years, when the protein quality of the high protein diet was improved and the energy content of both diets was increased. Vitamin A determinations were carried out on 245 piglet livers and 32 pairs of kidneys and lungs at birth from 47 sows. The livers, kidneys and lungs of 16 sows were also analysed for vitamin A after approximately 4 years on experiment. Vitamin A was detected at birth with antimony trichloride in the liver of the piglet, but not in the kidney or lung. The sow's kidney was found to contain only small amounts and lung tissue only traces.A dietary vitamin A level of 4800 i.u./kg during the breeding life of healthy sows, or 8600 i.u./day during gestation, was adequate from the point of view of both a constant storage in piglet livers at birth over eight to ten parities and a relatively high concentration remaining in sow livers after that period. This conclusion is in line with recommendations of the Agricultural Research Council (1966).As a consequence of differences in both the condition of the sows and in their responses in the two periods, the results for each period are presented separately. In the first 2-year period, when the sows received a relatively low intake of dietary protein during gestation (between 248 and 317 g protein/sow/day), and a low energy intake; that is, when protein was used for energy production, the liver vitamin A storage of the piglet at birth was increased by raising either the daily protein intake during gestation to 352 g, or the food intake from 1·8 to 2·3 kg/sow/day. Liver vitamin A and N concentrations were negatively correlated with liver weight, but increasing dietary protein concentration raised liver weight and its vitamin A content. Liver vitamin A per piglet was not affected by litter size.A conclusion may not be drawn concerning the contribution of dietary energy to the differences in response between periods, because in addition to dietary changes other differences occurred between periods. Nevertheless, in the second 2-year period, when energy intake during gestation was adequate for normal growth and development, a difference of 150 g in protein intake/sow/day (363 g against 208 g) had no effect on liver weight or its vitamin A content. Furthermore, there was no significant treatment effect on total protein or albumin concentrations in the serum of the sow.
    Print ISSN: 0021-8596
    Digitale ISSN: 1469-5146
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 1969-11-27
    Beschreibung: In this paper, we study the propagation of a shock wave in water, produced by the expansion of a spherical piston with a finite initial radius. The piston path in the x, t plane is a hyperbola. We have considered the following two cases: (i) the piston accelerates from a zero initial velocity and attains a finite velocity asymptotically as t tends to infinity, and (ii) the piston decelerates, starting from a finite initial velocity. Since an analytic approach to this problem is extremely difficult, we have employed the artificial viscosity method of von Neumann & Richtmyer after examining its applicability in water. For the accelerating piston case, we have studied the effect of different initial radii of the piston, different initial curvatures of the piston path in the x, t plane and the different asymptotic speeds of the piston. The decelerating case exhibits the interesting phenomenon of the formation of a cavity in water when the deceleration of the piston is sufficiently high. We have also studied the motion of the cavity boundary up to 550 cycles.
    Print ISSN: 0022-1120
    Digitale ISSN: 1469-7645
    Thema: Maschinenbau , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    Journal of American studies 3 (1969), S. 177-199 
    ISSN: 0021-8758
    Quelle: Cambridge Journals Digital Archives
    Thema: Anglistik, Amerikanistik , Geschichte , Politikwissenschaft , Sociologie , Wirtschaftswissenschaften
    Notizen: 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.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @British journal for the history of science 4 (1969), S. 421-422 
    ISSN: 0007-0874
    Quelle: Cambridge Journals Digital Archives
    Thema: Geschichte , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @journal of modern African studies 7 (1969), S. 334-337 
    ISSN: 0022-278X
    Quelle: Cambridge Journals Digital Archives
    Thema: Ethnologie , Geschichte , Politikwissenschaft , Wirtschaftswissenschaften
    Notizen: Malagasy literary output and books about the Republic have already been dealt with in a bibliography of major importance, by Guillaume Grandidier, Bibliographie de Madagascar, vols. I and n (Paris, 1905-6 and 1935), vol. in (Tananarive, 1957), and vol. iv (in preparation). Since 1964 the national and university libraries have been working jointly on an annual bibliography, of which two volumes, for 1964 and 1965, have been published (Tananarive, 1967 and 1968). This short note does not aim to offer a complete bibliographical survey, but to provide for cultivated English-speakers a short but comprehensive list of non-specialised publications which would enable the ‘common reader’ to acquire a respectable knowledge of Madagascar.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    Modern Asian studies 3 (1969), S. 209-223 
    ISSN: 0026-749X
    Quelle: Cambridge Journals Digital Archives
    Thema: Ethnologie , Geschichte , Politikwissenschaft , Wirtschaftswissenschaften
    Notizen: This account of the Burmese Rebellion of 1930–1931, and the role of its leader, Saya San, emphasizes the importance of traditional elements in what is commonly regarded as a nationalist uprising. The apparently nationalistic symbols of the Rebellion had magical and protective functions that were not appreciated by the British at the time of the Rebellion. The importance of nationalism in Burma in the 1930s has been overestimated, while the strength and continuity of traditional appeals has been incompletely understood. A comparison of the tactics of U Ottama, a cosmopolitan revolutionary, with the less modern but more successful efforts of Saya San, suggests that the rural Burmese of 1930 were more responsive to symbolic appeals than to programmatic designs for reform. The Western-educated elite of Burma were at first surprised and perhaps embarrassed by the primitive uprising in the countryside, but they eventually embraced the Rebellion and its symbols. Thus the Saya San Rebellion was a key stage in the transition of Burmese nationalism; to the urban elite, it vividly demonstrated the survival of traditional values in the countryside, while proving that a peasant uprising could achieve only temporary success without specific and negotiable aims, which required modern political skills.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @China quarterly 39 (1969), S. 136-136 
    ISSN: 0305-7410
    Quelle: Cambridge Journals Digital Archives
    Thema: Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen , Geschichte , Politikwissenschaft , Sociologie , Wirtschaftswissenschaften
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @journal of modern African studies 7 (1969), S. 542-543 
    ISSN: 0022-278X
    Quelle: Cambridge Journals Digital Archives
    Thema: Ethnologie , Geschichte , Politikwissenschaft , Wirtschaftswissenschaften
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @journal of modern African studies 7 (1969), S. 289-307 
    ISSN: 0022-278X
    Quelle: Cambridge Journals Digital Archives
    Thema: Ethnologie , Geschichte , Politikwissenschaft , Wirtschaftswissenschaften
    Notizen: The phenomenon of trade unionism in tropical Africa has only recently become the subject of serious social inquiry. In the main, academic attention has been focused on labour as a commodity rather than as a social movement. Through the activities of the National Institute for Personnel Research in Johannesburg and the Commission for Technical Co-operation in Africa South of the Sahara, labour research interests have been primarily concentrated on productivity, efficiency, labour turnover, selection, control, and training. The volume of such work has been small compared with similar work in western industrialised countries, but it has been large in comparison with that concerning the collective action of African labour.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @journal of modern African studies 7 (1969), S. 759-760 
    ISSN: 0022-278X
    Quelle: Cambridge Journals Digital Archives
    Thema: Ethnologie , Geschichte , Politikwissenschaft , Wirtschaftswissenschaften
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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