Sentence examples for a persistent challenge of from inspiring English sources

There is a persistent challenge of normalization in miRNA expression studies across cell types and tissues [43 47].

The complexity of socioecological systems (SES) has posed a persistent challenge to the development of methods for diagnostic and prognostic analyses of global change.

The existence of some problems in this regard constitutes a persistent challenge to the management of safety behavior [ 10].

The current methodology may allow researchers to disentangle the interactions between objective situational determinants of HRQL and patients' subjective response to situational events, such interactions have presented a persistent challenge to developers and users of HRQL instrumentation [ 29, 56].

Formulating a good working definition of annoyance is a persistent challenge for researchers.

Where there is less diversity is in the research methods that were employed and this highlights a persistent challenge for researchers concerned with the study of globalization and health.

A persistent challenge in the analysis of these data sets lies in the reporting of relationships, particularly in mapping these relationships into a tree or network.

Background: Quantitative estimation of toxicokinetic variability in the human population is a persistent challenge in risk assessment of environmental chemicals.

However, low protein yield has been a persistent challenge in further development of transgenic plants as a practical recombinant protein production platform.

Underfunding of health services is a persistent challenge contributing to a myriad of other malfunctions in the system (39).

Moreover, in most rural areas, deployment and retention of all categories of health personnel remains a persistent challenge [ 8].