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| Günther,Bruno; Morgado,Enrique. |
| A wide spectrum of cyclic functions in terrestrial mammals of different size, from the 3-gram shrew to the 3-ton elephant, yields an allometric exponent around 0.25, which is correlated _ as a kind of common denominator _ with the specific metabolic rate. Furthermore, the applicability of these empirical findings could be extrapolated to chronological events in the sub-cellular realm. On the other hand, the succession of growth periods (T98%) until sexual maturity is reached also follows the 1/4 power rule. By means of Verhulst's logistic equation, it has been possible to simulate three different biological conditions, which means that by modifying the numerical value of only one parameter, revertible physiological and pathological states can be obtained,... |
| Tipo: Journal article |
Palavras-chave: Growth; Dimensional analysis; Specific metabolic rate; Logistic equation; Homeostasis. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000200010 |
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| He,XY; Ye,H; Ma,JL; Zhang,RQ; Chen,GC; Xia,YY. |
| Annual leaf segments of eight Camellia species were used to study the heat tolerance by an electrical conductivity method, in combination with a Logistic equation to ascertain the semi-lethal high temperature by fitting the cell injury rate curve. Te relationship between the processing temperature and the cell injury rate in Camellia showed a typical "S" shaped curve, following the Logistic model. Te correlation coeficient was above 0.95. Te semi-lethal high temperature LT50 of the eight Camellia species, determined by the infection point on the curve, varied from 50 to 57 LT50 / °C, following the descending order: Camellia oleifera > C. japonica > C. polyodonta > C. semiserrata > C. nitidissima > C. gigantocarpa > C. nanyongensis > C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Camellia; Logistic equation; Semi-lethal high temperatures; Heat tolerance. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000200007 |
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