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The author discusses changing views on the world food problem since 1945. "The extent of the problem has been a matter of debate as hunger cannot be directly measured; estimated minimum requirements for energy have been reduced since 1945 and the causes of malnutrition reappraised. World food production has kept up with population growth since 1945, as it has in all major regions except Africa. But when individual countries are considered, food output per head has been declining since 1961-5 in many countries in Africa and Asia. Food output has been increased in the developing countries by expanding the area under cultivation and by increasing yields." In addition the author concludes that "the Green Revolution has however not achieved early expectations and has had some adverse economic and social consequences. Because world food output per caput has risen considerably since 1945, some have argued that the world food problem is one of distribution, not production. Data on food output per caput suggest this is not always so."  相似文献   

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Infection, hidden hunger, and history   总被引:1,自引:0,他引:1  
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Alestalo J 《Fennia》1983,161(2):263-288
Trends in the spatial distribution of the population of Finland from 1880 to 1980 are examined using official data from population registers and censuses. "Cumulative maps and graphs and concentration indices were applied as methodological tools, and the administrative communes were taken as the areal units for a chorological matrix." The results show an increasing concentration of the population beginning in the latter half of the nineteenth century, although urbanization levels remain low in comparison with most industrialized European countries. Differences in population distribution by occupation are also considered.  相似文献   

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This paper presents the first multidisciplinary synthesis of the Middle Stone Age sequence of Diepkloof Rock Shelter (South Africa). We explore the main cultural changes that characterized southern African hunter–gatherer societies from OIS 5 to the beginning of OIS 3. We discuss the tempo of these changes, test the current interpretative hypotheses and explore an empirical model to explain the early appearance of symbolic marking within the Pleistocene hunter–gather societies of southern Africa.  相似文献   

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Abstract: This article, based upon in-depth interviews with anti-governmentleaders and activists, first explains the significance of theupheaval in Communist Poland in 1980–1981 and articulateshow the author became involved in this research and explainshis methodology. It then concentrates on the impact on the personallives of the participants and on social relations in Polandof the upheaval that produced an unprecedented-in-the-Soviet-blocindependent union with the right to strike. It shows how activistsdeveloped talents and cultivated abilities as they assumed responsibilitiesthat had previously been unavailable to them. It examines howworkers' lives changed as they grasped control of power: theirworking conditions improved; their status rose; they treatedone another better; they educated themselves. These changes,which contributed to the context in which the political struggleof that period took place, survived the suppression of the unionand ultimately contributed to bringing about the end of Communismin Poland.  相似文献   

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Between 1880 and 1900, the conjunction of the development of higher education in France with the renewal of colonial expansion resulted in the creation of the ‘colonial sciences’. ‘Colonial geography’ played a key role in the development of these new disciplines, alongside ‘colonial history’, ‘ethnology’, ‘colonial economics and legislation’ and ‘colonial psychology’. This paper considers the social history of this field and of the institutions in which colonial geography was formed. This involves examination of the study of the teaching of ‘colonial geography’ in the universities and French grandes écoles, the gradual professionalisation of scholarship, and the increase in the number of doctoral theses and book publications, which all serve to demonstrate the vigour of the subdiscipline, leading to the emergence of a veritable research community. Under the Third Republic, ‘colonial geography’ in the universities was characterised by great diversity, irreducible to a single or homogenous ‘colonial discourse’.  相似文献   

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Inspired by the dichotomous understanding of nationhood contributed by Brubaker (1992), this paper explores how Chinese nationhood is constituted by particular symbols in middle school historiography since the 1950s. In response to the analysis on the high school textbooks done by Baranovitch (2000), this study finds that the narratives in the middle school history textbooks have a similar transition from equating China to Han to defining China as a multi‐ethnic nation. However, the analysis also demonstrates that the transition of the middle school history textbooks is not as complete and absolute as that of their high school counterparts. A textbook may follow different principles in nationhood configuration simultaneously. In the textbook narratives before the change, the jus sanguinis logic was dominant over the jus soli logic; in those in the textbooks after the change, Chinese nationhood was constituted by the jus soli principle and the jus sanguinis principle complementarily. This study questions the perception that a nation only consistently follows one philosophy in the symbolic consolidation of nationhood, and casts doubt on the understanding that jus sanguinis or jus soli logic is deeply rooted in the historical development of a nation and cannot change.  相似文献   

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The state school curriculum, and geography in particular, played a role in encouraging emigration to the colonies, if not in actually educating for emigration. Emigration was an implicit and explicit topic in school geography, and was increasingly endorsed after the 1885 Revised Instructions to inspectors of schools which explicitly sought the promotion of emigration to young people as an “honourable enterprise”. Early-twentieth century school geography texts were part of the broader imperial discourse which valorized the settler Dominions over the tropical colonies and portrayed them as the good citizen's choice for emigration. The 1922 Empire Settlement Act represented the British government's most direct intervention in supporting out-migration from Britain, but texts at this time were generally less jingoistic than some of their forerunners, in keeping with the changed attitudes in post-World War I Britain.  相似文献   

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Black fertility in the U. S. declined sharply in the latter part of the 19th century and continued declining up to 1940. Common expert opinion has held that this decline in fertility was not attributable to an increase in birth control practice. Instead, experts hypothesized that the fertility decline was due almost entirely to deleterious changes in health factors among blacks. The health hypothesis is faulty because those black groups with socioeconomic advantages most conducive to good health were the very groups with the lowest fertility rates. A number of recent fertility studies seem to show fairly widespread use of birth control among blacks during the 60 years up to 1940. This widespread use did not increase precipitously in the 1930s but grew gradually over the previous 1/2 century. Knowledge and acceptance levels of birth control were also high during those years among blacks. Similarly, the experts' beliefs that birth control, even if practiced among blacks, did not have much effect on black fertility because "infective" methods were used, birth control was not practiced "effectively," and blacks started birth control practice too late in their reproductive lives have been shown by studies to have no empirical bases.  相似文献   

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