Postcodes and the 1991 census of population: issues,problems and prospects

"The decade between the 1981 and 1991 UK Censuses of Population has seen an enormous increase in the use of the postcode system for locational referencing. To date, no direct means have existed for linking postcoded data to census geography at the most detailed level, but the production of a new ED/postcode directory promises to offer a range of new opportunities for postcode applications following the release of the 1991 Census data. This paper reviews the characteristics of the postcode system, describes the new directory, and examines the methods which will be available for linking the Census and postcodes post-1991."     

"The moon" and "the blood": two emblematic symbols in headache and epilepsy according to scientific traditions of the Salerno Medical school and popular medicine in southern Italy

Before describing the state of knowledge on headache and epilepsy at the Salerno Medical School (SMS), we will briefly summarize in the first part its history through the centuries until the "golden period" of the 12th century when it reached its peak by outshining all others in teaching, studies and research. In the second part we will refer to Saint Donato, healer of epileptics in the south of Italy, whose worship is still alive today. The finding of common symbols in conceptions of headache and epilepsy, both in the scientific tradition of the School and in popular medicine, represents a link which is explicable by the wide dissemination of the school's doctrines.     

欧洲华侨华人概况

欧洲华侨华人概况ＦｒａｎｋＮ．Ｐｉｅｋｅ著李明欢译（一）引人注目的中国移民潮自１９７８年中国实施改革开放以来,尤其是１９８５年中国放宽了对出国人员的审批条例之后,离开中国前往世界各地的移民达到了一个空前未有的高潮。在这之前的数十年里,中国曾经对人口迁...     

Rural out-migration and economic standing in a prairie setting

"This study attempts to trace the determinants of rural out-migration for a typical portion of the Canadian Prairies, namely agricultural Manitoba. In concentrating on the 'push' factors responsible for gross out-migration over the period 1966-71, the study considers aspects of several dimensions: spatial, economic, social, ethnic and demographic. However, in order to explore the ramifications of interaction between migration and these multifaceted factors, a model is construed which dwells not only on the forces responsible for out-migration, per se, but also on those capable of regulating rural economic structure and agricultural welfare."     

The historiography of hunger: changing views on the world food problem, 1945-1980

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."     

莫斯科工艺博物馆

革命前莫斯科工藝博物館是在八十年前,一八七二年由一些傑出的進步科學家、莫斯科大学的自然科學爱好者协会会員及人類学家和人种学家所創立。协会和它的应用科学博物館就是工藝博物館的最初名称。它出現在十九世紀的六十年代及七十年代並不是偶然的;因为在这个時期正当農奴制度的廢除,对國家生產力的普遍發展     

环境变化对画布与颜料层之间相互作用的影响

本文运用双轴应力测试仪测定了单纯画布和带颜料层画布在同样环境温度、湿度变化下所产生的应力变化、这项测试为研究画布和颜料层之间的相互作用提供了第一手资料。通过比较实验发现,油画的开裂和老化主要由颜料层引起的,实验还证明：微小温度变化对油画应力变化具有显著影响以及环境相对湿度pH＞90％将严重威胁油画的保存。     

永别了,青蛙？ 致命真菌袭击两栖动物

“我们地球上一次遭遇这样近乎全面的物种大灭绝,还是恐龙所在的那个时期。现在,谁都无法否认, 那一次大灭绝改变了地球。”——乔·门德尔松,亚特兰大动物园几十年来,科学家们一直知道两栖动物种群处境困难。而“动物保护国际”与其合作伙伴 2004年编撰的《2004年度全球两栖动物评估》更发布了令人震惊的消息。在被评估的5700多种青蛙,蟾蜍等两栖动物中,几乎三分之一属于濒危物