While increasing the amount of solids recycled increased process performance, the methods applicability was limited by its positive correlation with increasing total solids concentrations, reaction volumes, and lignin content of the insoluble residue.
Even though the statistical power is limited, a statistically significant positive correlation between the prevalence of exclusively online bullying and unnatural-death mortality among children aged 10 14 was detected.
While research on spirituality and adolescence is limited, studies of religiosity have found a positive correlation with an adolescent sense of well-being, positive life attitudes, altruism, resiliency, school success, health and positive identity, as well as a negative correlation with alcohol and drug use, delinquency, depression, excessive risk-taking and early sexual activity.
High quality nest sites are a limiting resource in such ecosystems, and a positive correlation between colony size, brood production and nest site size should be evident, due to competition for nest sites.
In our study on women without occupational exposure and with blood lead levels within "normal" limits, blood lead showed a significant positive correlation with serum levels of anti-p53, CEA, and TPS and with Itap, this in multiple regression analyses with all available personal and lifestyle parameters and with all available parameters of internal exposure.
An explicit formulation of the stationary condition predicts a positive correlation between the lower frequency limit and the DC pulse current.
The results show a positive correlation between the upper reference limits and the analytical results for the laboratories.
Experimental support for a positive correlation between within-host multiplication rates and virulence is limited for plant-virus systems.
Experimental support for the central assumption of this hypothesis, i.e., for a positive correlation between within-host multiplication rates and virulence, is limited for plant-parasite systems.
As already observed for the growth curves in limiting conditions, also in this experiment there is a direct and positive correlation between the levels of vitamin C produced (see Fig. 2) and cell viability.
