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Digitale Medien

Variations in DNA content (1979)

Banerjee, M. ; Sharma, A. K.

Springer

Cellular and molecular life sciences 35 (1979), S. 42-43

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ISSN: 1420-9071

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Summary DNA content in the active nuclei of various plant organs varies from organ to organ. The amount of DNA in the shoot tip is the least, as compared to that of other organs. The amplification of DNA in the differentiation of organs from the shoot meristem has been suggested.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01917865

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Digitale Medien

Chemical modification of nylon 6 by organoacetoxy- and ethoxysilanes (1979)

Bajaj, P. ; Sharma, A. K.

New York, NY [u.a.] : Wiley-Blackwell

Journal of Applied Polymer Science 23 (1979), S. 1541-1551

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Details

ISSN: 0021-8995

Schlagwort(e): Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Maschinenbau , Physik

Notizen: Chemical crosslinks were introduced in nylon 6 filament by means of organoacetoxy- and ethoxysilanes in benzene under anhydrous conditions. A comparison of the relative reactivities of these silanes toward nylon was made on the basis of the weight add-on calculated from silicon analysis. Application of acetoxysilanes on preswollen nylon caused an increase in the breaking stress and extensibility. However, a decrease in the initial modulus, birefringence, and moisture regain was observed. An improvement in the thermal stability has also been observed in the crosslinked samples.

Zusätzliches Material: 3 Ill.