Any protection provided by shielding materials result not so much from stopping such particles but by changing their physical character in interaction with shielding material nuclei forming, hopefully, less dangerous species.
Likewise, for tissue classification, the rate of decay is dependent upon the material nuclei, and therefore registers differently onto the MR image that is made up of pixels with varying intensity.
For pDNA delivery, a nuclear localization signal (NLS) was added to the biopolymer structure to facilitate active translocation of the genetic material towards nucleus.
Insoluble material and nuclei were removed by centrifugation at 13,000× g for 30 min at 4°C, and soluble cell lysate was incubated with anti-FLAG M2 affinity gel (A2220; Sigma) overnight at 4°C.
Exchange may result in transfer of nuclear material – whole nuclei (Burdon et al. 1982), individual chromosomes (Manners et al. 1992) and or of other cytoplasmic components including plasmids and viruses (Lawrence et al. 1988).
In contrast to wild type lenses, the alphaA/BKO lenses contained large areas devoid of cellular material, their nuclei were not limited to a well defined equatorial/bow region, and ordered radial columns of elongating fiber cells extending from the posterior capsule to the anterior epithelium were not observed.
The results here presented provide elements to engineer surfaces apt to guide and control cell behaviour through the material-cytoskeleton-nucleus axis.
This may reflect a redistribution of material between the nucleus and the cytoplasm, and/or a reorganization of the nucleus.
However, arguments against fenestration at the time of decompression are that there is less nucleus material remaining within such a herniated disc and that there is a reduced possibility for more extruded disc material to cause significant cord compression after hemilaminectomy.
Genetic material in the nucleus is found packed into DNA-protein complexes called chromosomes.
Cyriacus' material formed the nucleus of various compilations in the succeeding centuries, normally on a geographic basis.
