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  • 1980-1984  (1)
  • 1975-1979  (1)
Materialart
Erscheinungszeitraum
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Surveys in geophysics 6 (1983), S. 5-25 
    ISSN: 1573-0956
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract The magnetotelluric inverse problem is reviewed, addressing the following mathematical questions: (a)Existence of solutions: A satisfactory theory is now available to determine whether or not a given finite collection of response data is consistent with any one-dimensional conductivity profile. (b)Uniqueness: With practical data, consisting of a finite set of imprecise observations, infinitely many solutions exist if one does. (c)Construction: Several numerically stable procedures have been given which it can be proved will construct a conductivity profile in accord with incomplete data, whenever a solution exists. (d)Inference: No sound mathematical theory has yet been developed enabling us to draw firm, geophysically useful conclusions about the complete class of satisfactory models. Examples illustrating these ideas are given, based in the main on the COPROD data series.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Culture, medicine and psychiatry 3 (1979), S. 3-28 
    ISSN: 0165-005X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Ethnologie , Medizin
    Notizen: Abstract Self-care during illness and pregnancies by individuals and their families is a ubiquitous and integral part of societies throughout the world. This paper reports findings about self-care practices identified during four studies carried out over a ten-year period involving about 14,000 interviews in 7,400 households comprising over 48,000 people in three Indian states and three districts of Nepal. The proportion of ill individuals using self-care over a two-week period in the different study areas ranged from 19 to 42 percent. This involved 5 to 9 percent of the total population in self-care activities during these two weeks. Much larger differences were found between India and Nepal in the use of self-care during pregnancies. Self-care or care by relatives and friends was the predominant source of maternity care in Nepal, including deliveries, while Indian maternal care was dominated by traditional birth attendants. Comparisons also were made between self-care and the use of professional healers or health care services during the same time period. Differences in the use of self-care by age, sex, caste, access to government or special project services, type of illness, and duration and severity of illness have also been shown. The need for similar, better standardized surveys in combination with intensive studies examining the details and rationale behind self-care practices in different societies has been stressed as an essential step in developing programs to expand or modify self-care practices of individuals and their families.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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