'substantive activities' is correct and usable in written English.
You can use it when referring to activities that are significant or meaningful in nature. For example, "The company focuses on various substantive activities to ensure that their employees are successful."
In a position reminiscent of J.S. Mill, Oakeshott argued empirically that people want to pursue their own life plans, and it is for this reason that governing ought to provide "general rules of conduct" and not "plans for imposing substantive activity" (1991: 424).
One possibility for the source of the two different patch polarities involves the exonuclease activity of RecBCD, and the lack of substantive activity after interaction with Chi, or when the strain is RecD− [2], [3], [64], [85], [86].
"Oyster populations in the north central Gulf of Mexico will likely require substantive restoration activities to overcome the population bottleneck created by the oil spill and associated response activities," the report states.
We model a hurricane event because, in addition to its similarity to other disasters, it provides enough warning for substantive preparation activities.
There were no substantive construction activities or industrial facilities near the main campus during the study.
While some staff reported substantive outreach activities on a weekly basis, others hardly ever left the clinic.
The aim of this in vitro study was to assess the substantive antimicrobial activity of different medicaments in human root dentin.
This implies a massive undertaking by all governments, and requires substantive awareness-raising activities to ensure that each sector becomes risk aware and adopts risk management as its own tool.
The paper builds on the IMP Group's general conceptualisation of the business process as one of substantive interaction between activities, resources and the actors associated with them (Håkansson et al., 2010).
One trial had substantive health promotion activities accompanying the deworming group (Table 3).
"For UNFPA, our focus is that no woman should die while giving life and the participation of these young women in substantive income generating activities could spiral the growth of the Somali economy, while improving their families' quality of life," UNFPA's Deputy Regional Director for the Arab States, Francois Farah, said at the event.
