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Query: UMLS:C0017168 (gastroesophageal reflux disease)
 11,783 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

"The main purpose of this study is to develop a methodology for generating parallel projections of regional population and labour force which not only incorporates expected age/sex/marital-status/regional differences in the economic activity rates but at the same time takes account of demographic factors such as fertility, mortality and interregional migration in the overall projections." A model is developed and adapted to project the British regional population and labor force for 1976 and 1981. These forecasts are then evaluated by comparing them with Office of Population Censuses and Surveys forecasts for the same years (SUMMARY IN FRE, GER)
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PMID:Future changes in the size and composition of the British labour force: a regional projection exercise. 1231 Aug 68

"This paper argues that migrant behaviour should be, in the absence of 'money illusion', sensitive to geographic living-cost differentials. The empirical findings of this paper strongly imply that, in the United States and Canada, the cost of living is an important determinant of migration patterns and that omission of the living-cost variable from the migration regression constitutes a specification error." The study is based on net migration data for 36 SMSAs in the United States and 22 CMAs (Central Metropolitan Areas) in Canada (SUMMARY IN FRE, GER)
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PMID:"Money illusion" and migration decisions: an international comparison of the United States and Canadian experiences. 1231 43

Mortality among preschool children in Cuba in the 1970s is analyzed. Mortality rates for Cuba are compared with those for selected other Latin American countries and the United States. Studies carried out during this period are reviewed, and changes in the leading causes of death of children aged 1-4 are examined. (summary in ENG, FRE, GER, )
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PMID:[Preschool mortality in the Americas during the decade 1970-1979: the situation in Cuba]. 1231 15

Differences in causes of death among the different regions of Cuba are analyzed. Mortality is calculated by cause of death and sex for Cuba and its regions in 1970 and for the whole country in 1975. The impact on life expectancy of the elimination of particular types of causes of death is estimated. (summary in ENG, FRE, GER)
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PMID:[The impact of different causes of death on the mortality levels of the population of Cuba]. 1231 46

This paper is concerned with the implications of job search models for migration. In contrast to earlier models, the model described here does not assume perfect information about the wage offer distribution. "In this model information about the wage offer distribution is imperfect and accumulated through the search process. When based on this search model, the migration model is largely enriched and also more realistic. Strategies, which are suboptimal or even absurd with perfect information about the wage offer distribution, such as purchase of information, can be preferable in a migration model, when imperfect information is assumed." The author suggests that the model can explain many phenomena utilized in the argumentation of polarization theory. Consideration is also given to selectivity with respect to age, educational status, and risk preference, as well as the cumulative effects caused by past migration flows and the size of regions. (summary in FRE, GER)
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PMID:Cumulative causation and selectivity in labour market oriented migration caused by imperfect information. 1231 18

"In contrast to most inter-regional studies of migration, which have sought to illuminate total migratory flows or net migration through multiple regression analysis, this paper disaggregates inflows and outflows to reveal the characteristics of migrants in terms of gender, age, economic activity and occupation. This is done for Brittany [France] in the most recent inter-census period (1975-82) in order to elaborate and apply a descriptive model of counterurbanization based on six demographic facets. In terms of this model Brittany is found to be a fairly well-developed example. Implications for the conceptualization and explanation of counterurbanization trends are discussed." (SUMMARY IN FRE AND GER)
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PMID:The disaggregation of migration flows: the case of Britanny, 1975-1982. 1231 55

"The article concentrates on migration typologies and the role they play in the analysis of residential and labour migration. It is argued that in order to be able to understand the decisions individuals make regarding migration, the spatial adjustments as a consequence of the spatial separation of residence and workplace should be investigated. One way of obtaining more insight about these adjustment processes is by analysis of the influence of actual and perceived commuting on the decision to move. The suggested typology of residential and labour migration therefore contains commuting as the key factor. As an empirical application of the concepts, an analysis of actual migration in the Netherlands was undertaken." (SUMMARY IN FRE AND GER)
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PMID:A causal typology of migration: the role of commuting. 1231 24

"This paper analyses migration between the London boroughs using a discrete probability model, but with a correction for excess dispersion to that expected under the Poisson process. Two sources of migration data are used: one-year migration from the 1981 Census; and ten-year migration from the OPCS Longitudinal Study. The evidence from both sets is that both housing and labour market factors are relevant to explaining interborough migration, in addition to the distance and mass terms of the basic gravity model. The labour market effects suggest that migration generally equilibrates differences in excess labour supply between the boroughs, though less strongly in the recession year 1980-81." (SUMMARY IN FRE AND GER)
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PMID:Modelling migration flows between areas: an analysis for London using the census and OPCS Longitudinal Study. 1231 21

"Travellers leaving Northern Ireland's air and sea ports at the end of the New Year holiday period 1988 were contacted as a means of identifying potential out-migrants. The method proved to be highly cost effective and reasonably successful. One thousand individuals who had either lived or had been born in Northern Ireland but who were now residing outside the province were obtained from 1,702 traveller contacts. The paper discusses the problems surrounding the representativeness of this sample of emigrants and outlines possible strategies for their resolution. The more significant results of a brief questionnaire survey about migrant origins, destinations, characteristics, motivations and intentions are also presented." (SUMMARY IN FRE AND GER)
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PMID:Migration from Northern Ireland: a survey of new year travellers as a means of identifying emigrants. 1231 4

"This paper examines options for local and regional projections which reflect both demographic interdependencies with jobs and housing at this area scale, and the inapplicability of traditional demographic projection methods to population or areal subdivisions. This context for local demographic projections requires constraints (for example, to job and housing forecasts or to higher area totals), the use of proxy or explanatory indicators to predict demographic rates or totals, and parameterization of demographic schedules, to facilitate comparison across numerous localities and to set future assumptions about demographic components. The traditional framework of self-contained projection by deterministic cohort survival is therefore widened to include regio-scientific and stochastic modelling concepts. The framework for empirical analysis is London [England] and its boroughs." (SUMMARY IN FRE AND GER)
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PMID:Multiregional demographic projections in practice: a metropolitan example. 1231 47


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