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Preservative stability and preservative systems
International Journal of Cosmetic Science, 1985SynopsisThe stability of cosmetics must be examined from a chemical, physical and biological viewpoint. Biological stability is dependent on many factors including preservative effectiveness, preservative stability and the levels of initial and in‐use contamination.Bronopol, a highly active preservative with less than ideal stability in alkaline ...
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Survey of Ophthalmology, 1989
Significant advances in corneal preservation have been made over the past decade. The introduction of chondroitin sulfate-containing media for use at 4 degrees C allows storage of corneas for up to ten days prior to transplantation. Organ culture techniques have also been improved with the addition of chondroitin sulfate.
S E, Wilson, W M, Bourne
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Significant advances in corneal preservation have been made over the past decade. The introduction of chondroitin sulfate-containing media for use at 4 degrees C allows storage of corneas for up to ten days prior to transplantation. Organ culture techniques have also been improved with the addition of chondroitin sulfate.
S E, Wilson, W M, Bourne
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Technologies for Wood Preservation in Historic Preservation
Archives and Museum Informatics, 1999Because of the abundant forests of the world, wood is one of the most common materials found in historic buildings. Wood is relatively easy to fabricate into beams, columns, and roof systems using simple hand tools. However, because of its biological origin, wood is one of the most complex constructions materials.
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Surgical Clinics of North America, 1994
Our clinical transplantation results have been very satisfying, with about 90% graft survival after 1 year. Currently, preservation of the liver, pancreas, and kidney, although not ideal, appears to meet all our clinical needs. Improvements in heart and lung preservation are needed and will result in increasing the number of cadaveric organs available ...
A M, D'Alessandro +3 more
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Our clinical transplantation results have been very satisfying, with about 90% graft survival after 1 year. Currently, preservation of the liver, pancreas, and kidney, although not ideal, appears to meet all our clinical needs. Improvements in heart and lung preservation are needed and will result in increasing the number of cadaveric organs available ...
A M, D'Alessandro +3 more
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Historic Preservation: Preserving Value?
The Journal of Real Estate Finance and Economics, 2011The creation of historic districts has become a common way to preserve historic buildings and neighborhoods. Advocates of historic districts assume that such districts augment, or at least, protect property values for homes within these districts. The existing economic literature supports this conclusion, but most studies seem to fall victim to an ...
Martin D. Heintzelman, Jason A. Altieri
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2006
The success of organ transplantation is critically dependent on the quality of the donor organ. Donor organ quality, in turn, is determined by a variety of factors including donor age and preexisting disease, the mechanism of brain death, donor management prior to organ procurement, the duration of hypothermic storage, and the circumstances of ...
Mark, Hicks +4 more
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The success of organ transplantation is critically dependent on the quality of the donor organ. Donor organ quality, in turn, is determined by a variety of factors including donor age and preexisting disease, the mechanism of brain death, donor management prior to organ procurement, the duration of hypothermic storage, and the circumstances of ...
Mark, Hicks +4 more
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Global Regulation of Preservatives and Cosmetic Preservatives
2006All countries require that cosmetics sold inside their borders be safe. Part of the safety issue for a cosmetic is freedom from microbial contamination when it is placed on the market and the ability to remain free from contamination during normal and foreseeable use by consumers.
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Preservation of Microorganisms
1978Publisher Summary This chapter discusses various methods used to preserve microorganisms. Storage in liquid nitrogen is one of the best methods for preserving all microorganisms. For some viruses, it may be better to freeze the sample rapidly, but slow freezing with a cryoprotective agent is desirable for all other organisms to retain maximum ...
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