The phrase "at invalid" is not correct and does not make sense in written English.
It seems to be an incomplete or incorrect expression, and without context, it is unclear when it could be used.
Example: "The system returned an error because the input was at invalid."
Alternatives: "in error" or "not valid".
Therefore, in the absence of multivariable data, subgroup analysis is entirely inappropriate, rendering the aforementioned studies at best biased, at worst invalid.
Research on new intrusion detection algorithms is often at best questionable and at worst invalid, given that the results cannot be verified under realistic conditions.
On 20 % of the trials, the target appeared at the "invalid" location (i.e., at the location opposite to that indicated by the arrow).
Given that the clinical pain conditions to which preclinical research is intended to apply are female-predominant, one could argue that preclinical research that excludes females is incomplete at best or invalid at worst" [ 33]. 2009: Studies on the relationship of the sex of patients to the influence of general anesthesia.
Bette Davis fans get all tingly when the actress, as the remorseless Regina Giddens, snaps at her invalid husband, Horace, "I hope you die soon".
Residual at these invalid elements should be unconstrained since no information of these elements is known a priori.
While these arguments may hold some sway -- with government trust at historic lows and faux science in vogue -- they are invalid at best and at worst, represent willfully deceptive diversions.
By Mollie Panter-Downes The New Yorker, November 29 , 1941P. 62 REPORTER AT LARGE about the Invalid Comfort Section of the Red Cross and the Order of St. John, a bureau for the dispatch of medical supplies, food, and other goods, in response to appeals from prison camp doctors.
The New Yorker, November 29 , 1941P. 62 REPORTER AT LARGE about the Invalid Comfort Section of the Red Cross and the Order of St. John, a bureau for the dispatch of medical supplies, food, and other goods, in response to appeals from prison camp doctors.
