The phrase "constitute sources of" is a correct and usable phrase in written English.
It can be used to indicate that certain items or ideas serve as a source of something else. For example: "The expertise of our team and the latest technology we use constitute sources of great value to our business."
Recent studies indicate that heat release fluctuations generated by equivalence ratio perturbations may constitute sources of instability with effects similar to those induced by acoustic perturbations.
These factors constitute sources of lock-in and represent barriers to societal support of energy developments that has relevance beyond France and nuclear energy.
Secondly, the castings with a fateful approach to old age are ambivalent; whereas they serve as resources for the health professionals' normalizing of medical projects and perspectives, they can constitute sources of problems for the patients' doctorability and/or agency.
Runs of guanines (G) and the particular type of mismatched pairings formed in cross-allelic probe/target duplexes constitute sources of systematic biases of the probe signals with consequences for genotyping and copy number estimates.
In these, secreted proteins constitute sources of relevant enzyme cocktails.
All these findings demonstrated that fast deceleration and acceleration processes constitute sources of triggering of ventricular arrhythmias.
They may constitute source of annotation errors of closely related genomes and thus should be eliminated from the current annotations.
Books, television and magazines were used by over 40%, while public health campaigns and health classes constituted sources of information to more than 30% of the respondents.
Since the 5'-UTR and intron within the 5'-UTR generally contain transcriptional and posttranscriptional cis-elements, TEs may have constituted sources of cis-elements for the transferred mitochondrial genes.
Actinobacteria constitute rich sources of novel biocatalysts and novel natural products for medical and industrial utilization.
Moreover, they may constitute valuable sources of data for scholars and policy makers.
