Adjustment phases in mammalian cell culture are common and can be induced by changes in growth medium [5] and substratum [29].
Repair and/or fixation of this form of PLD can only be shown if precautions are taken to circumvent toxicity induced by adriamycin released from the cells during the post-treatment time interval, for example, by frequent changes in medium.
Refracto-vibrometry is a relatively new measurement technique that is sensitive to variations in the optical refractive index of a medium caused by changes in acoustic pressure within that medium (the acousto-optic effect).
The Resolution Foundation said such short-term responses would have to be replaced by changes in behaviour over the medium-to-long term.
Coda-wave interferometry is a technique to detect slight changes in medium properties by measuring phase changes or waveform changes in coda waves from repetitive similar sources (e.g., Poupinet et al. 1984; Snieder et al. 2002; Snieder 2006).
For example, Yamaji et al. [ 90] reported increased proliferation (as measured by thymidine incorporation) of brain-capillary endothelial cells following Epo addition but only when accompanied by a change in medium.
High coefficients of variability in organic carbon and total N content were observed for soil organic carbon (SOC; 53-55%) and between 178-184% for total N. High variability in SOC and total N content may indicate soil properties that are mostly impacted on the short to medium term by changes in soil management practices.
Thus, we conclude that, unlike chronological life span, replicative life span is not limited by acidification of the culture medium or by changes in the pH of the environment.
Furthermore, although long-term changes in the function of a cell or tissue may be caused by changes in gene expression, in mammals many medium-term changes arise from protein modifications, such as phosphorylation, acetylation and ubiquitylation, although short-term changes are often caused by allosteric modifications, reflecting rapid transient changes in metabolites.
The formation of cysts is induced by changes in the concentration of nutrients in the medium and addition of some organic substances such as ethanol, n-butanol, or ��-hydroxybutyrate.
