According to the 'fountain of youth' hypothesis (Perrin, 2009) young sex chromosomes would escape from degeneration by maintaining rare recombination events, that would be promoted by occasional spontaneous temperature-dependent sex inversions.
The model of two-step process for spontaneous temperature-dependent isomerization of rhodopsin was proposed., The first step is deprotonation of protein-bound chromophore (form of retinal) with activation energy around 100 kJ/mole.
In salmonids occasional spontaneous temperature-dependent sex inversion have been reported but most of them involved masculinization of genetic females (Craig et al. 1996; Azuma et al. 2004), thus not promoting sex inversion toward the female phenotype that has the highest rate of recombination.
The data indicate that carbon induces the Cu O bond breaking process to initiate the combustion of carbon at temperatures significantly lower than the spontaneous decomposition temperature of CuO, and the type of reducing medium in the vicinity of the metal oxide influences the temperature at which the oxygen release from the metal oxide takes place.
Loss occurred at higher inspired oxygen (15% O2) in normothermic endotoxic mice, than in mice at their spontaneous hypothermic temperature (32.4°C ± 2.0).
In this work spontaneous ignition temperature (SIT) data obtained in high pressure enriched oxygen from both differential scanning calorimetry and oxygen bomb testing are compared.
Oil recovery by spontaneous room temperature imbibition, followed by a waterflood, was studied for aged cores, to obtain Amott Harvey wettability index to water.
The results showed that the amount of PAHs released from coal and gangue first increased and then decreased with the rising of coal and gangue spontaneous combustion temperature.
These factors included age, total amount of adrenaline needed to achieve restoration of spontaneous circulation, temperature at beginning of cooling, cardiac arrest with ventricular fibrillation, and nonperfusing ventricular tachycardia as the initial cardiac rhythm (Table 4).
Secondary objectives were to describe expected side effects that had previously been attributed in the literature to MIH or to the cooling system; to assess spontaneous core temperature variations after cessation of MIH; and to evaluate patient neurological outcome, as assessed using the Pittsburgh Cerebral Performance Category (CPC) on day 28 [ 1, 10, 11].
