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  • Electronic Resource  (2)
  • 1995-1999  (2)
  • 1960-1964
  • 1920-1924
  • 1999  (2)
  • Family support  (1)
  • Osmotic stress  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Synthesis and oxidative insolubilization of cell-wall proteins during osmotic stress (1999)
    Springer
    Planta 208 (1999), S. 401-408 
    Details
    ISSN: 1432-2048
    Keywords: Key words: Cell wall ; Osmotic stress ; Oxidative insolubilization ; Pinus (root turgor) ; Root polypeptides ; Turgor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract. The cell walls in the new white roots of jack pine (Pinus banksiana Lamb.) were observed to constrict around the shrinking protoplast of osmotically stressed roots, and pressure was maintained via an apparent adjustment of cell-wall size and elasticity. These elastic alterations of the cell wall permitted the root cells to maintain full turgor despite the loss of most of the water in the tissue. The constriction of the root cell wall around the dehydrating protoplasts to maintain turgor may reflect changes in cell wall structure. We found that these shrinking root cells synthesize and secrete into the intercellular fluid a set of proteins. These proteins become tightly associated (i.e. guanidine HCl- and sodium dodecyl sulfate-insoluble) with the cell wall but can be released from the matrix, after briefly boiling in 0.1% sodium dodecyl sulfate, by the combination of guanidine HCl, CaCl2 and dithiothreitol. However, these cell-wall proteins became insoluble with time. The proteins could subsequently be destructively extracted from the wall with acid NaClO2 treatments. After these proteins were incorporated into the cell walls, the roots adopted a new, smaller maximal tissue volume and elastic coefficients returned to normal levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004250050575
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Family support, financial needs, and health care needs of rural elderly in China: A field study (1999)
    Springer
    Journal of cross-cultural gerontology 14 (1999), S. 357-371 
    Details
    ISSN: 1573-0719
    Keywords: China ; Family support ; Financial needs ; Health care needs ; Rural elderly
    Source: Springer Online Journal Archives 1860-2000
    Topics: Ethnic Sciences , Sociology
    Notes: Abstract This study examined family support, financial needs, and health care needs of 100 elderly persons in a rural county in China. Data revealed that immediate family members helped elderly persons with activities of daily living and instrumental activities of daily living, and that adult children also provided financial assistance to most of the elderly. However, only eight percent of the elderly persons reported that they had adequate financial resources. In the four villages surveyed, collective health care systems had collapsed in the early 1980's. Due to high costs of health care and the absence of government support, almost two thirds of the elderly persons had unmet needs for health care. In addition, elderly persons who reported poor health were more likely to have unmet financial and health care needs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006607707655
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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