The phrase "a subset of developing" is correct and usable in written English.
It can be used when discussing a specific group or category that falls under the broader concept of development.
Example: "The new program focuses on a subset of developing technologies that aim to improve sustainability."
Alternatives: "a portion of development" or "a segment of developing".
Landmark initiatives such as the Chemical Effects in Biological Systems knowledge base (http://cebs.niehs.nih.gov/) sponsored by the National Institute of Environmental Health Sciences will be limited in their value if only a subset of developed data are submitted to it.
In turn, the pollinating wasps gall a subset of the developing fig seeds and so are completely dependent on the fig for the completion of their life cycle.
However, it is necessary to open the joint capsule and cut the ligaments to induce instability, involving an aggressive destruction of joint structures, reproducing a subset of OA developing as a consequence of traumatic knee injury.
Because of the distribution of the data, least developed and less developed regions were grouped together (least developed regions are defined as a subset of less developed ones, see UN, 2010).
Although recovery after concussion is spontaneous and typically occurs within 2-3 weeks, a subset of adolescents develop persistent symptoms after a sports-related concussion.
In clinical practice it is well-known that, in spite of the documented presence of advanced CAD, only a subset of patients develops acute MI during their life-course [2].
A subset of patients developed broad responses, which selected for consensus B epitope variants in Gag, Pol, and Nef, suggesting CTL-induced adaptation of HIV-1 at the population level.
In most LHON pedigrees the causative mtDNA mutation is homoplasmic (100% mtDNA copies are mutant) in all maternally related individuals, but only a subset of them develops the optic neuropathy, usually estimated as about 50% of the males and 10% of females [2].
From the tumor-biology point of view, it is not known why a subset of tumors develops ERBB2 amplification.
First, adult fish expressing EWS-FLI1 in a subset of cells develop tumors that resemble human Ewing's sarcoma.
