Zobrazeno 1 - 10
of 23
pro vyhledávání: '"F A, Bettelheim"'
Autor:
F A, Bettelheim, J S, Zigler
Publikováno v:
Investigative ophthalmologyvisual science. 40(6)
To investigate the effect of pressure on the freezable and nonfreezable water content of the lens.Excised rhesus monkey lenses in tissue culture media were subjected to three different hydrostatic pressures (2 atm, 1 atm, and 0.03 atm) for 24 hours.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::346151243b6e768307c491d8b3183830
https://pubmed.ncbi.nlm.nih.gov/10235567
https://pubmed.ncbi.nlm.nih.gov/10235567
Publikováno v:
Research communications in molecular pathology and pharmacology. 102(1)
Cataract formation in diabetic lenses has been attributed to polyol-osmotic pressure-generated influx of water. The ensuing swelling in the form of pocket and lake accumulations cause light scattering. The authors tested whether clear lenses of diabe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::e7a869369307e3bd6fd3c0dd93f70964
https://pubmed.ncbi.nlm.nih.gov/9920342
https://pubmed.ncbi.nlm.nih.gov/9920342
Publikováno v:
Experimental eye research. 58(2)
Four fractions of gamma-crystallins, B(II), C(IIIb), D(IIIa) and E(IVa), were isolated from bovine lenses. The hydration properties of each fraction were measured as a function of protein concentration. The freezable water content was obtained by dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6ed2da394fe10ee104ede819abdc4d2e
https://pubmed.ncbi.nlm.nih.gov/8157114
https://pubmed.ncbi.nlm.nih.gov/8157114
Autor:
S, Kakar, F A, Bettelheim
Publikováno v:
Investigative ophthalmologyvisual science. 32(3)
The hydration of actin was studied by differential scanning calorimetry between -30 degrees C and 30 degrees C and by thermogravimetric analysis. The differential scanning calorimetry provided the freezable water content of G- and F-actin as a functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5a3b242d8bc8bf769664cce27ca557ca
https://pubmed.ncbi.nlm.nih.gov/2001930
https://pubmed.ncbi.nlm.nih.gov/2001930
Autor:
F. A. Bettelheim, S. Ali
Publikováno v:
Colloid and Polymer Science. 263:396-398
Differential scanning calorimetric studies of protein solution provided the freezable water content as a function of concentration. Total water content was obtained by vacuum dehydration. The difference between the two gave the non-freezing water con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::405f0c8a37fe54b23b4c7445a6e8863f
https://doi.org/10.1007/bf01410387
https://doi.org/10.1007/bf01410387
Autor:
F A, Bettelheim, A A, Bettelheim
Publikováno v:
Investigative ophthalmologyvisual science. 17(9)
Using polarized light scattered in the I'' and I+ modes, we determined the relative contributions of density and orientation fluctuation to the opacity of bovine lenses. In both the cortex and the nucleus of bovine lenses cultured in xylose column, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b6e38c0857f0466141e859bec551d23b
https://pubmed.ncbi.nlm.nih.gov/700968
https://pubmed.ncbi.nlm.nih.gov/700968
Autor:
F A, Bettelheim, M, Kumbar
Publikováno v:
Investigative ophthalmologyvisual science. 16(3)
Small-angle light-scattering patterns of human cornea in I. and I modes were compared to theoretical scattering patterns generated in the computer on the basis of a cornea model. This model is a nonrandom assembly of optically anistropic rods. The be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::794e565951740a54ed810f5c12fa4e62
https://pubmed.ncbi.nlm.nih.gov/844978
https://pubmed.ncbi.nlm.nih.gov/844978
Publikováno v:
Investigative ophthalmologyvisual science. 26(8)
The cortex, intermediate zone, and nucleus of 19 normal human lenses between the ages of 3 and 77 yr were investigated. The freezable water content of the lenses was obtained by differential scanning calorimetry. The total water content was measured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6378e28b9978b9dd4698ced82a8ac5a2
https://pubmed.ncbi.nlm.nih.gov/4019108
https://pubmed.ncbi.nlm.nih.gov/4019108
Autor:
F A, Bettelheim, R, Magrill
Publikováno v:
Investigative ophthalmologyvisual science. 16(3)
Light-scattering patterns of corneas of different species have been obtained. The different small-angle light-scattering (SALS) patterns were classified into four groups on the basis of the angular dependence of the intensity of light scattered in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::849a4cebae6374560f5f18c4b9d76620
https://pubmed.ncbi.nlm.nih.gov/300375
https://pubmed.ncbi.nlm.nih.gov/300375
Publikováno v:
Investigative ophthalmologyvisual science. 29(6)
Twenty-six bovine corneas, 30 micron thick, were sectioned perpendicular to the visual axis. Sections, weighing 10-20 mg, were analyzed for total water content by thermogravimetric analysis and for freezable water content by differential scanning cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b03e838783db46f80aac80ed34dbd34d
https://pubmed.ncbi.nlm.nih.gov/3131266
https://pubmed.ncbi.nlm.nih.gov/3131266