is well ascertained

USAGE SUMMARY

The phrase "is well ascertained" is not correct in standard written English.
The correct form would be "is well ascertained" or "has been well ascertained." Example: "The effectiveness of the new treatment is well ascertained through numerous clinical trials."

⚠ May contain grammatical issues

Science

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

Nowadays it is well ascertained that to decrease this impact by means of structural interventions requires considerable economic resources.

International Journal of Disaster Risk Reduction

Although the association between FGF-23 and mortality is well ascertained in the CKD population, underlining mechanisms remain not well known yet.

CKJ: Clinical Kidney Journal

It is well ascertained that the effect on HR is limited or absent, since studies using the postexercise muscle ischemia method often report very mild or null effects on this parameter [ 13, 15, 34– 34].

BioMed Research International

It is well ascertained that anti-E DIII-directed Abs are virtually absent from the naïve human repertoire as they are directed away from this domain, probably against weakly neutralizing and immunodominant regions.

BioMed Research International

It is well ascertained that central command can increase HR and blood pressure by increasing sympathetic and decreasing parasympathetic tone, respectively; however, there are no investigations demonstrating any effect of central command on cardiac contractility, preload, or afterload.

BioMed Research International

While it is well ascertained that baroreflex activity is modulated by both central command and exercise pressor reflex, less is known about the interaction between central command and exercise pressor reflex.

BioMed Research International

Human-verified similar examples from authoritative sources

Similar Expressions

53 human-written examples

Another gene, Immunity-related GTPases (IRG) that play an important role in defense against intracellular pathogens and NFĸB complex which has been well ascertained to be regulated by Mta1 were also found in the network.

Plosone

These procedures are well ascertained and as long as one is recorded, these women will be indentified by the MMOI.

BMC Pregnancy and Childbirth

While the location where primary transmission occurred now appears to be well ascertained, the reservoir species at the origin remains unknown.

Emerging Infectious Diseases

Both studies were performed as nested case control studies within large prospective birth cohort studies; the women were recruited during pregnancy and the diagnosis of cryptorchidism was well ascertained.

Environmental Health Perspectives

However, its clinical usefulness is not well ascertained and currently WT1 is neither used for risk stratification of newly diagnosed AML patients, nor used to give different therapeutic strategies.

BioMed Research International

Expert writing Tips

Best practice

When aiming for clarity and correctness, replace the phrase "is well ascertained" with more standard alternatives such as "is well established" or "is clearly established".

Common error

Avoid using "is well ascertained" when a more active and direct construction would improve clarity and impact. Consider rephrasing to emphasize who has ascertained the information, for instance, "researchers have well ascertained" or, better, "researchers have clearly established."

Linguistic Context

The phrase "is well ascertained" functions as a passive construction indicating that something has been thoroughly determined or established. However, Ludwig AI identifies it as not being correct in standard written English.

Expression frequency: Uncommon

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, while the phrase "is well ascertained" appears in some scientific and academic texts, Ludwig AI points out that it's not considered standard written English. More common and grammatically sound alternatives such as "is well established" or "is clearly established" are generally preferred for enhanced clarity and correctness. Understanding its infrequent and somewhat questionable use helps writers make informed decisions about phrasing in their writing, ensuring both accuracy and grammatical appropriateness. It's best to use this phrase with caution, opting for clearer alternatives.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is clearly established

Replaces "well ascertained" with a more direct and grammatically conventional expression.

is firmly established

Emphasizes the solidity and certainty of the established fact.

is well established

A more common and accepted phrasing conveying the same meaning.

is definitely known

Highlights the certainty of the knowledge, replacing 'ascertained'.

is generally accepted

Focuses on the broad agreement about the fact.

is widely recognized

Indicates that the information is commonly acknowledged.

is beyond doubt

Stresses the lack of uncertainty surrounding the fact.

has been verified

Emphasizes that the information has been checked and confirmed.

is confirmed

A simpler way to express that something has been validated.

is substantiated

Indicates that there's evidence to support the claim.

FAQs

What can I say instead of "is well ascertained"?

You can use alternatives like "is well established", "is clearly established", or "is definitely known" depending on the context.

Is it grammatically correct to use "is well ascertained"?

While the phrase "is well ascertained" may be encountered, it is not considered standard English. It's better to use "is well established" or "has been ascertained" instead.

How can I use "is well ascertained" in a sentence correctly?

Though less common, you might use "has been well ascertained" to imply that something has been thoroughly investigated and confirmed. However, using more common alternatives will result in clearer writing.

What's the difference between "is well ascertained" and "is well established"?

"Is well established" is the preferred and more common way to express that something is known or proven. "Is well ascertained" is less common and can sound awkward.