The phrase "are effective upon" is correct and usable in written English.
It can be used to indicate the point in time when something becomes effective or applicable, often in legal or formal contexts.
Example: "The new regulations are effective upon their publication in the official gazette."
Alternatives: "take effect upon" or "become effective upon".
The appointment of Mr. Katzenbach, 82, who was an attorney general under President Lyndon B. Johnson, is effective upon WorldCom's exit from bankruptcy, which the company has said will occur in April.
The rule that the acceptance is effective upon dispatch creates a situation in which the offeror who wishes to revoke his offer is uncertain whether or not he can still do so, since his revocation is not effective until receipt, whereas the offeree's acceptance, if one is made, takes effect on dispatch.
The "November 13" rule was effective upon publication in the November 13 , 2001Federal Register.
We designed and synthesized several compounds as reversible HSL inhibitors with a focus on hydrophobic interactions, which was thought to be effective upon the HSL inhibitory activity.
However, the law was effective upon enactment and OCR has been accepting and investigating complaints under this authority".
Gawchik et al. [ 12] in the only randomised control trial showed topical steroids were effective upon chronic cough, associated with post nasal drip syndrome, following a two to eight week course.
As indicated in the study by Wenger et al. [ 12], HIV patients are less likely to miss ART appointments when they have a good knowledge of the etiology of the disease and understand that ART is effective upon adherence.
Thus, these results demonstrate on the molecular, protein, and physiological levels that antigene PNAs are effective in vivo upon systemic administration.
Procaine, bupvacaine and lidocaine are voltage-gated Na+ channel blockers that are effective anti-nociceptives upon local application, but their efficacy is limited to disorders with ongoing peripheral nociceptive activation (e.g. postherpetic neuralgia), rather than central pain disorders (conditions caused by damage to or dysfunction of the CNS).
