PubMed HealthSearch

SEARCH · PubMed Health

Results for “Emigration and Immigration”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources

Measuring change in sex composition.

The present paper deals with changes over time in the sex composition of a given population. Such changes are generated by the components of population change: natality, mortality, immigration and emigration. The objective of this paper is to propose a model which provides a quantitative statement concerning the effect of each such component on the change in the sex composition of the population. It is shown that the model is applicable to the measurement of sex composition by either the masculinity proportion of the sex ratio. To demonstrate the application of the proposed model, an example based on Canadian data is given.

Birth Rate

Migration of Oncomelania quadrasi observed by the mark and release method in a wet bank of a stream in Leyte, Philippines.

The migration and population size of Oncomelania quandrasi were studied at two sites in a submerged bank of a stream in Leyte Philippines. The snails collected by filter paper in an experimental area were marked with manicure and released in the same area. Collection was repeated every 4 days in the same area for 5 more times and snails without mark were marked with manicure of different colors at each time. The immigration and emigration rates and population were calculated from the collection data. One experimental site with an area of 5.86 m2 was established at the edge of the water pathway, 3 sides of which were surrounded by wooden planks except that side facing the water pathway to determine the migration between the bank and water pathway. The other experimental site was 7.54 m2 in area, located in a submerged place close to high land and was left open in all sides. The ranges of the population, immigration and emigration rates during a 4 day period were 3845 to 7638, 0 to 0.4448 and 0.2263 to 0.8911, respectively in the former site. The results in the latter area were 1336 to 2468, 0.1261 to 0.6725 and 0.1349 to 1.2340, respectively. It was observed that the replacement of individual snails in a habitat was largely due to migration which in turn was influenced much by the change of water level in the bank. The emigration increased with the elevation of water level. On the other hand, the immigration increased with the lowering of water.

Animals

[Social psychiatry of migrant workers (author's transl)].

A review of literature about psychic illness in migrant workers (with special reference to the situation in Europe) is presented, including the problems of incidence and prevalence, course of the illness, typical syndromes and treatment. Results concerning incidence and prevalence of psychic disease in migrant workers are contradictory and partly--for methodological reasons--of questionable quality. It cannot be take for granted, that migrant workers suffer more often from psychiatric disturbances than either of the two possible control groups: the populations of the emigration or immigration countries respectively. There are two high risk periods for migrants: shortly after the migration and after a longer period in the guest country. Differences between the migrant's culture and that of the immigration context (language, mythical beliefs, illness behavior) influence the manifestations of psychiatric syndromes. The following syndromes are typical for migrant workers: paranoid reactions, hypochondric-depressive syndromes, psychosomatic conditions and sexual neurosis. Special attention requests the treatment of migrant workers with psychiatric problems; the aspects of psychotherapy, accompanying social measures and the return as therapeutic measure are discussed. In the second part, a general frame of reference for the sociological analysis of the problem of migrant workers is presented. Reasons for the mass immigration of foreign workers to the industrialized countries of central Europe were the demand of labor force and the large gap in socio-economic development between the countries. In the immigration context, the foreign workers find themselves in the lowest social strata and numerous problems accumulate there. Empirical evidence for different sociological explanations of mental illnes of migrant workers ist presented: hypotheses of social selection vs. social causation (low socio-economic status, goal-striving-stress, culture-shock theory, theory of culture change and isolation hypothesis).

Adjustment Disorders

Suicide in France: some hypotheses.

The relatively high suicide rate in France is investigated and a number of influences are hypothesized as causative. These include, on a societal and demographic level, a history of high immigration, low emigration, a high proportion of old people, high urbanization, extraordinarily high alcoholism, and the extreme gap in income between upper and lower classes. The rigid bureaucracy of the state can leave the individual feeling infuriated and defeated. The legal system produces many injustices, such as long imprisonment without charges. The Church is liberal and supplies little prophylaxis against suicide. Overall, social integration must be judged to be low. Culturally, French values include an underlying pessimism, no strong fear of death, strong pressures to behave correctly and much malice toward neighbors. The modal personality structure contains defensive, constricted elements producing a vulnerable pseudo-autonomy. French child-rearing practices are effective in producing such personalities.

Cultural Characteristics

[Current problems in juvenile tuberculosis. 1. The current epidemiological state of tuberculosis].

Although tuberculosis as an epidemic is generally regressing it must still be considered as a disease which is widespread throughout Germany and throughout the world. The yearly rate of new infections is high - nearly 36,000 cases in the Federal Republic of Germany, Nearly 40% of our population is virulently infected and therefore a possible factor in the outbreak of new epidemics. Even if tuberculosis were to be exterminated in our country, it is possible that immigrants, returning emigrants or guest-workers coming from infected regions, may bring further epidemics. They would then come in contact with a non-immunized population. It is therefore urgently necessary to recognize and not to neglect this disease. This is the only possible way to combat this imminent danger and to successfully implement the almost certain methods of treatment.

BCG Vaccine

Soviet immigrants.

Explore the source record for details and available documents.

Emigration and Immigration