The phrase "affiliation to a certain" is correct and usable in written English.
It can be used when discussing a connection or association with a specific group, organization, or category.
Example: "Her affiliation to a certain political party influenced her voting decisions."
Alternatives: "association with a specific" or "connection to a particular".
Most governments insist also on the voter's affiliation to a certain locality or constituency.
Also, there is no clear indication how much agreement is necessary for the affiliation to a certain categoryh.
In order to ensure affiliation to a certain group, two students needed to be nominated as members of the same group at least four times (i.e., both students nominated themselves as members of the same group, and two other students also nominated them together as members of the same group).
I also think our job is that much more difficult because we are the new guy on the scene, and we work without an affiliation to a certain clique or crew.
The columns of the GO matrix hold data describing the gene/protein affiliation to a certain GO term.
Concerning religion, we differentiated between believers (affiliation to a Christian confession) and atheists (no affiliation to a Christian confession), and unknown affiliation.
However, the affiliation of one domain to a certain core is not inevitably constant.
A number of other parties emerged, distinguished by their radicalism, support for federalism or centralism and affiliation to certain ethnic groupings.
Third, this method relies on first authors' affiliation information to attribute publications to a certain country.
Thus, applying a generic prediction model of organic matter using all soil types results in a rough estimation due to the spectrum affiliation with a certain class and not due to correct organic matter analysis.
There is also an external evidence corroborating to a certain degree the thesis about Cārvāka / Lokāyata affiliation of Jayarāśi.
