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Biomedical subjects

A Bideau

Publications and source records attributed to A Bideau.

At least 19 recordsLinked to original sources

Stay or leave? Individual choice and family logic: the destinations of children born in the Valserine Valley (French Jura) in the eighteenth and nineteenth centuries.

"To study inheritance, it is necessary in the first place to know the number of heirs in each family, how property was divided between them, and whether their inheritance was sufficient to enable them to maintain and support several children in the parish. This study examines the process by which the populations of the parishes of Valserine Valley in France reproduce themselves from one generation to the next, by means of examining the ¿effective' progeny of couples to determine how many of them produce children (heirs) who continue to live in the Valley. The ultimate goal of these researches is to establish the characteristics of those who leave the Valley, and how these differ from those who choose to stay. The article examines whether it is possible to discern a family strategy in the way these decisions are made, and whether behavior of the persons in question is determined by individual choice."

Behavior↗

[The reproduction of the population in the seventeenth, eighteenth, and nineteenth centuries. Examples from France and Quebec].

This article examines the descendants of four cohorts of couples formed in the seventeenth and eighteenth centuries (two cohorts in two French mountain valleys and one on the Ile-d'Orléans in Quebec). The children are separated into four categories according to their fate (deceased while still unmarried, unknown fate, married but childless, "useful children"). "Useful children", a concept used in population genetics, are those who in turn bear children. In all three places, the useful children represent only from 26 to 31% of births. The study goes on to measure the contributions made by these couples to the next generation. In the mean, each couple gave birth to little over one useful child. But the contributions of couples turns out to be very unequal. Depending on the place, from 36 to 53% of couples left no useful children behind them, while a small minority of couples made an ample contribution to the next generation. The same measure is reproduced in the constitution of the next generation, thereby showing that inequality of couples in terms of reproduction is perpetuated.

Canada↗

Age of mother at last birth in two historical populations.

This study uses sets of historical family reconstitutions from all of Quebec and from four villages of the Haut-Jura, France--first marriages of 2226 and 994 women, respectively--to investigate the physiological and social factors affecting age of mother at last birth before and during fertility transition. Age remained high throughout the period covered in Quebec, under 'natural' conditions, but showed a steady decline in the French material which extends to late 19th century generations practising family limitation. Age at marriage had no influence in Quebec; in France, however, women with the most surviving children at age 35 continued childbearing the latest. There was no link between biological ability to achieve a live birth, or in health status or aging rhythm, and age at last birth. Behaviour of mothers and daughters showed no relation. The variability in age at last birth thus appears to be random under natural conditions; with the onset of controls, social differences seem to influence not only the end of childbearing, but all aspects of behaviour governing final family size and child survival.

Age Factors↗

[The difference in mortality between biological children and foster children: the example of Druillat (Ain) in the seventeenth century].

Druillat, a parish in Bresse, welcomed a lot of abandoned infants who had been found a foster home by Lyons Hôtel-Dieu (hospital) during the second half of the eighteenth century. After specifying the annual volume of this incoming flow, the arrival of each infant at its foster home is considered. The notion of foster home covers in diversified family situations as far as the number of native children and infants are concerned. Through the comparison of deaths recorded locally and the Hôtel-Dieu register keeping lists of the infants' placements, the mortality of foster infants can be precise and compared to that of natives. The age at which they were put out to nurses and the host family standards of living, plays a fundamental role as far as the infant mortality risks are concerned.

Child↗

Intervals between marriage and first birth in mothers and daughters.

Marriage-first birth intervals are examined in two historical populations, Quebec (1608-1765) and Haut-Jura (1689-1980), comparing intervals in mothers and daughters, and in sister-sister pairs. The results point to a weak relationship between intervals of mothers and daughters, though it does not attain significance. Shared environment does not seem to be responsible since there is no association between pairs of sisters from the same populations.

Adolescent↗

Age-related clinical profile of hereditary hemorrhagic telangiectasia in an epidemiologically recruited population.

We report the results of a comprehensive and systematic clinical study of 324 patients with hereditary hemorrhagic telangiectasia, selected from a total of 1,270 cases recruited by epidemiological survey. In 94% of the cases, familial occurrence suggested autosomal dominant inheritance; maximum penetrance for at least one manifestation was 97%. Epistaxis was reported by 96% of the patients and, in more than 50%, developed before age 20. Heavy and frequent bleeding occurred mainly in middle-aged patients. Telangiectasia was documented in 74% of cases, half of whom were younger than 30 years. The frequency of involvement of the hands and wrists was 41%, and for the face, 33%. Visceral involvement was present in 25% of patients, with affected lungs and CNS in the young and gastrointestinal tract and liver in older patients. Symptomatic urinary tract involvement was seen in only two/324 patients. Involvement of other internal sites was not observed.

Adolescent↗

[Orphans and adult mortality. The example of France between 1740 and 1829].

The relationship between adult mortality and the proportion of orphans in France in the eighteenth and nineteenth centuries is analyzed. Data are from a research project developed at the Institut National d'Etudes Demographiques [INED] and concern data for some 400 communes, together with life tables developed for the periods 1740-1749 and 1820-1829. "This paper is divided in two chapters. The first chapter examines the different proportions of orphans, observed in the above mentioned periods. The second one confronts these proportions with comparable values derived from mortality tables." Consideration is given to the relationship between parents' death and timing of marriage of

Adult↗

[Not Available].

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Demography↗

[Demography and genetics. The usefulness of geneologic data banks].

The authors have tried to answer an essential question: the usefulness of data bases in Genetics and Demography. Problems concerning the collect and the treatment by computer of registers of population have been presented. The usefulness of the genealogic reconstitutions for all the fields of the research, particularly for historic demography, genetic and medical research, both basic and applied, is presented.

Computers↗

[Not Available].

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Demography↗

[Not Available].

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Demography↗

[Not Available].

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Demography↗

[Not Available].

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Child Welfare↗