The phrase "are only handled" is correct and usable in written English.
It can be used to indicate that something is managed or dealt with in a specific manner or by specific people.
Example: "Sensitive documents are only handled by authorized personnel to ensure confidentiality."
Alternatives: "are solely managed" or "are exclusively dealt with".
"Those kinds of treasures are only handled by specially trained Archival staff," a spokeswoman said.
Kernel PCA can be used to reduce dimensionality, thereby improving on linear PCA, but the interpretability of the output representations may be cumbersome because the input variables are only handled implicitly.
Kernel machines can be used to implement several learning algorithms but the interpretability of the resultant output representations may be cumbersome, because input variables are only handled implicitly [ 6].
Due to its radioactivity and instability, americium is dangerous and thus, is only handled in nuclear facilities and research laboratories under stringent precautions.
Once inside the lab, she says: "The virus itself is only handled inside a hood [a specialist cabinet] within that room so basically it never really comes out, it is contained".
And a third group was only handled.
Manufacturing companies face growing production requirements which can only be only handled by intelligent systems.
Solving this can be only handled by coordinating multiple objectives, allowing balances and tradeoffs between them.
Hence, manipulated eggs (both control and testosterone) may have contained less yolk on average than eggs that were only handled.
Eggs that were only handled took on average 0.3 days shorter to hatch compared to sham-injected eggs (F1,55.7 = 5.68, p = 0.021).
This was also true when analyses were restricted to hatchlings from eggs that were only handled (sex effect; right foot: F1,47.4 = 1.84, p = 0.18; left foot: F1,53.7 = 1.09, p = 0.30).
