The phrase "a mere observation of" is correct and usable in written English.
It can be used when you want to emphasize that something is simply a notice or remark without deeper significance or action.
Example: "His comments were just a mere observation of the situation, lacking any real insight."
Alternatives: "a simple remark on" or "just a casual note about".
Prometheus sued.Mayo's lawyers say Prometheus has patented a mere observation of the body's natural workings.
Such a view might be buttressed with the idea that the attribution of autonomous agency, and the respect that purportedly goes with it, is itself a normative stance, not a mere observation of how a person actually thinks and acts (for discussion of this position see Christman 2005 and Korsgaard 2014) Autonomy is the aspect of persons that undue paternalism offends against.
Conspiracy theorists fail when they try to determine policy motives from a mere observation of policy effects.
Interesting, but remaining a mere observation in a study not designed to study this endpoint, is the lower incidence of renal failure and ascites in patients treated with thymostimulin as compared with placebo.
First the former player, now over 60, who reported a "mere observation".
For instance, the ability of 3n1 and 3n2 constructs to show population level oscillations is biologically interesting, but unfortunately remains a mere observation with a speculative interpretation.
So far, there was only behavioral evidence to suggest that the mere observation of a negative situation occurring to another individual evokes in the observer the same mental processes as those of the acting individual.
The mere observation of an epiphenomenon, i.e. a catecholamine-induced proximal vasoconstriction which mimics increased CBF, seems unlikely, as previous studies reported unchanged flow velocities during norepinephrine challenge [5].
From quantum physics we've learned that the mere observation of a sub-atomic particle can affect its behavior, demonstrating that even in our physical Universe the human element is important.
The results showed that mere observation of a model collaboration before collaboration led learners to acquire knowledge about how to collaborate in an unfamiliar CSCL practice.
