The phrase "ascertain without" is grammatically correct and can be used in written English.
It means to determine or find out something without the help of something or someone else. One example of using "ascertain without" in a sentence could be: "The detective was able to ascertain without any doubt that the suspect was lying about his alibi."
The reasons for this difference are hard to ascertain without a detailed understanding of what was included in the HR-MSM cost in that study.
Distant regulators are difficult to ascertain without a full genetic study, but local sequence variations could be assessed with our dataset.
Overall, this book is unique and, as far as we could ascertain, without rival in what it accomplishes, i.e. to delineate the history of our specialty on the basis of its seminal publications.
However, the peripheral neuropathy associated with diabetes masks symptoms of atherosclerosis, making the true prevalence of disease in the peripheral arteries difficult to ascertain without additional testing and presenting a challenge to early identification and prevention of disease progression (12, 17).
Likewise, we focus on treatment default which is linked to lower TB cure rates in the context of the well-documented selection for resistance that occurs with exposure to TB medication for insufficient duration but purposively avoid definitive conclusions about multidrug resistance status, which we cannot ascertain without laboratory measures.
Strict defining guidelines typically include any instance when a provider places the laryngoscope blade into a patient's mouth but, again, this is hard to ascertain without an independent observer being present or video recording of an encounter that can be independently reviewed at a later date.
It is difficult to guess how well the relationships among these characters would have been ascertained without Mr. Barenboim's prologue.
"Caloric restriction", as it is known in the trade, works for everything from threadworms to mammals (people included, as far as can be ascertained without the luxury of controlled experiments).
Owing to the nature of the problem, the RM cannot be ascertained without knowledge of the activation energy.
Since powders tend to heavily agglomerate in polar fluids, a comparison connected to the agglomeration of the particles and not just to crystallite size, cannot be ascertained without proper particle/agglomerate size distribution analysis [8 14].
This imperatival theory is positivist, for it identifies the existence of legal systems with patterns of command and obedience that can be ascertained without considering whether the sovereign has a moral right to rule or whether his commands are meritorious.
