File:Injury, recovery, and death, in relation to conductivity and permeability (1922) (14596585387).jpg

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Identifier: injuryrecoveryd00oste (find matches)
Title: Injury, recovery, and death, in relation to conductivity and permeability
Year: 1922 (1920s)
Authors: Osterhout, W. J. V. (Winthrop John Van Leuven), 1871-1964
Subjects: Physiology Electric conductivity Death (Biology)
Publisher: Philadelphia London : J.B. Lippincott Company
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Toronto

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0--0----0 o- 80.96112.0 300 600 QOOmin. FiQ. 37.—Curves showing net electrical resistance of Laminaria agardhii in NaCl 0.52 M (unbroken line), and recovery in sea water (dotted lines). The figure attached to each recovery curve denotes the time of exposure (in minutes) to the solution of NaCl. CaCL. Curve C in Fig. 38 shows the behavior of tissueplaced in a solution containing 97.56 mols of NaCl to2.44 of CaCL; its electrical resistance falling in 37.5hours to 72.87% of the original value in sea water.In a solution containing 85 mols of NaCl to 15 mols ofCaCla (Curve A) the resistance fell in the same time topractically the same point (72A7%). When these two lots of tissue were replaced in seawater they behaved differently. The resistance of the C/. Osterhout (1920, A, B; 1921, A, B, C). INJURY AND RECOVERY 9:\ first lot rose to 78.27o (Pig. 38, upper dotted line),but the resistance of the second fell (much more rapidlythan if it had not been removed to sea water) and eventu- 140%n
Text Appearing After Image:
3.000 mm. Fia. 38.—Curves showing net electrical resistance of Laminaria anardhii in a solution con-taining 97.56 mols of NaCl to 2.44 mols of CaClj (Curve C) and in a solution containing 86mols of NaCl to 15 mols of CaCh (Curve A). The dotted lines show recovery in sea water.Curves B and D show the levels to which the resistance rises when the tissue recovers in eeawater after exposure to these mixtures; their abscissae denote the times of exposure. CurveB pertains to the first mixture (belonging with Curve C), while Curve D pertains to thesecond mixture (belonging with Curve A). ally became practically stationary at 38.17o (Fig. 38,lower dotted line). If we plot the curve of permanent injury (i, e, levelto which the resistance rises after replacing the tissuein sea water) after various periods of exposure to thefirst mixture, we get Curve B (and for the second mix-ture. Curve D). 94 INJURY, EECOVERY, AND DEATH If we use the term recovery for the rise of resistance which occurs whe

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Flickr tags
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  • bookid:injuryrecoveryd00oste
  • bookyear:1922
  • bookdecade:1920
  • bookcentury:1900
  • bookauthor:Osterhout__W__J__V___Winthrop_John_Van_Leuven___1871_1964
  • booksubject:Physiology
  • booksubject:Electric_conductivity
  • booksubject:Death__Biology_
  • bookpublisher:Philadelphia_
  • bookpublisher:_London___J_B__Lippincott_Company
  • bookcontributor:Robarts___University_of_Toronto
  • booksponsor:University_of_Toronto
  • bookleafnumber:96
  • bookcollection:robarts
  • bookcollection:toronto
  • BHL Collection
Flickr posted date
InfoField
30 July 2014

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