The phrase "a fixed role" is correct and usable in written English.
It can be used to describe a position or function that is set and does not change.
Example: "In this organization, each employee has a fixed role that defines their responsibilities and tasks."
Alternatives: "a defined role" or "a designated role".
From the earlier work of each, you can guess who's doing what — Mr. Ambarchi likes long, bottom-heavy guitar tones; Mr. O'Rourke likes certain keyboard sounds — but neither has a fixed role.
We have been able to leverage the culture of social obligation to create a subculture, in which one's duty to the group is to ask questions and facilitate one another's learning, rather than to merely fulfill a fixed role.
Notwithstanding the time frame negotiated by each party for adjusting practices and institutions, the TPP ultimately aims to establish one criterion of wellbeing, freedom and development, as well as a fixed role for participants in the global value chains, without either consideration for their domestic needs and beliefs or an understanding of what is best for their local communities.
At the beginning of our experiment, subjects were informed about their (fixed) role as either an expert or a consumer, and they received an initial endowment of 200 experimental currency units (ECU), equivalent to 2.5 Euro.
Accordingly, we want to endorse the idea of a 3-dimensional continuum from fixed roles to flexibility, from uniparental to biparental care, and from early to late assumption of parental roles when thinking about the evolution of parental care.
Within these circles, employees won't have fixed roles, or an expectation of working any longer than is expedient and effective.
It instilled an interest in the museum and arts world and basically helped pave the way for me to get a fixed contract role at the National Portrait Gallery, cataloguing its collection of 20th-century photographs.
However, we cannot address a fixed position for this role, as the employee reports show that every member of the "family enterprise" is in contact with the person who holds that position, so the managers can provide their respective experiences and opinions on whether a selected assistant or publishing house worker fulfils the hopes that are placed upon him or her.
It has often been assumed that hermaphrodites have a fixed male or female role preference, preferring the one with the least expenditure (Leonard and Lukowiak 1984; Leonard 1991; Michiels et al. 2003).
Carefully distinguishing a fixed versus time-varying role for age in fibrosis progression will likely require multi-state modeling algorithms [ 20] that allow for time-varying covariates, which are currently not available.
In experiment 2, we assigned each individual (mother or offspring) of a pair as a giver or as a recipient, and fixed the roles consecutively for 24 trials (approximately one week).
