The phrase "are highly rigid" is correct and usable in written English.
It can be used to describe something that is very inflexible or strict in nature, often in contexts related to rules, structures, or materials.
Example: "The regulations in this industry are highly rigid, leaving little room for interpretation or flexibility."
Alternatives: "are extremely inflexible" or "are very strict".
Modern arches of steel, concrete, or laminated wood are highly rigid and lightweight, so that the horizontal thrust against the supports is small; this thrust can be further reduced by stretching a tie between the ends of the arch.
Force sensing methods have used end-effectors made of acrylic, polyvinyl chloride, and aluminum, all of which are highly rigid materials.
On the other hand, compounds such as Λ,Λ-B are highly rigid, whereas small molecules can adapt their conformation to the curvature and shape of the bottom of the minor groove.
Currently, the salary structure of the teaching profession is highly rigid, and that would also have to change in a world where we want to rate teachers on their actual performance.
This domain is highly rigid due to four intramolecular disulphide bonds (Muto et al. 2007), and disrupting them by mutagenesis impairs the capacity of orthosteric agonists to activate G proteins (Huang et al. 2011).
The review and decision-making process set forth in the final Departmental regulations is highly rigid and process-oriented, suggesting that states that cannot rack up points for various Departmental priorities and selection criteria stand little chance of winning - regardless of political intervention.
According to these studies, although the SRL is highly rigid when compared to other RNA motifs, the tetraloop is dynamic.
Collectively, these results suggest that the active site is highly rigid in the apo state of all homologs studied and is conformationally preorganized to favor the binding of a magnesium ion.
We observe that the well-studied RNase H homolog from E. coli contains a conformationally preorganized active site that is highly rigid on the ps-ns timescale in the presence of a single Mg 2+ ion, which is likely located at the B site crystallographically identified by examining the Mn 2+ complex.
According to parent report, children with ASD are often less able to focus and shift their attention on emotionally relevant stimuli compared to peers, indicating that their attentional biases may be highly rigid (Bailey, Hatton, Mesibov, Ament, & Skinner, 2000; Hepburn & Stone, 2006; Janes, 2001; Konstantareas & Stewart, 2006; Landry & Bryson, 2004).
The iron(IV oxo bond is short, that is, 1.660 1.671 Å, which is indicative of a double bond and in agreement with previous calculations on related complexes.[ 24, 27] The structures show little deviations between the three snapshots, and consequently the QM region is highly rigid and constraint.
