Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
as maintained in
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as maintained in" is correct and usable in written English.
It can be used when referring to something that is upheld or preserved in a specific document, statement, or context. Example: "The policy guidelines are as maintained in the official report released last year."
✓ Grammatically correct
Science
News & Media
Academia
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
5 human-written examples
The data from both in vivo and in vitro experiments showed that in at least 30 culture cell passages, the parasites maintained the same infectivity as maintained in vivo.
Science
Fig. 9 QoS specification guaranteed by the CoSs as maintained in the KB.
Kant's Physical Monadology (1756) takes as its task the reconciliation of the infinite divisibility of space, as maintained in geometry, with the simplicity of substances, which Kant believes is required in metaphysics.
Science
As maintained in [35, 36], if TF support region of a signal component is nearly disjoint from those of other components and the background noise in an input signal, then, TF transfer function of the Wiener filter that optimally estimates that component reduces to the indicator function of its TF support region.
Focusing on maize as an example, Mercer and Perales (2010) explores the issue of crop genetic resources as maintained in landraces, the evolutionary potential for crop adaptation to changing climates, and some of the problems associated with ex situ conservation of crop genetic resources.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Human NB SK-N-AS was maintained in vivo by serial subcutaneous passages of tumour fragments (about 2 × 2 × 6 mm) in healthy mice, as previously described (Pratesi et al, 1985).
Science
Interestingly, the pfCEN3 plasmid was not as stably maintained in blood-stage P. berghei as the plasmids containing a centromere of RMP origin.
Science
However, we did not use the term "starvation" as bacteria maintained in mineral water do not die quickly as observed in dematerialized water [49] [51].
Science
The Cyrenaics and others, such as Cicero, maintained, in turn, that this condition is not pleasurable but rather neutral — neither pleasurable nor painful.
Science
As I maintained in my previous piece on Atlas Shrugged, there is a lot of brilliance in Rand's writing.
News & Media
This trend continues as hMSCs maintained in 20% oxygen experience a greater accumulation of lipofuscin than those in hypoxic conditions.
Science
Expert writing Tips
Best practice
When using "as maintained in", ensure that you clearly identify the source or document where the information is being upheld or preserved. This provides context and credibility.
Common error
Avoid using "as maintained in" without a specific reference. Vague statements reduce the phrase's impact. Instead, provide the precise source, like "as maintained in the company's annual report".
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as maintained in" primarily functions as a prepositional phrase introducing a reference or source where something is consistently upheld or preserved. It provides context and supports claims by pointing to authoritative examples, aligning with Ludwig AI's assessment.
Frequent in
Science
60%
News & Media
20%
Academia
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "as maintained in" is a prepositional phrase used to indicate that something is consistently upheld or preserved within a specific context or source. As determined by Ludwig, the phrase is grammatically correct and most frequently encountered in scientific and academic writing. While not exceptionally common, its usage adds credibility by referencing authoritative sources. Remember to clearly identify the source when using this phrase to avoid vagueness. Alternatives such as ""as stated in"" or "as documented in" can be used depending on the context. Therefore, while this phrase is correct and usable, remember to cite specific sources in order to maximize clarity and credibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as preserved within
Emphasizes the act of keeping something intact within a specific environment or record.
as upheld by
Highlights the support or validation provided by a particular source or authority.
as retained in
Focuses on the continuous possession or storage of information or conditions within a system.
as sustained within
Implies the continuation or support of a process or state within a defined framework.
as documented in
Highlights the existence of information formally recorded in specific sources.
as kept in
Focuses on the act of maintaining or storing information in a particular place or state.
as logged within
Emphasizes recording data in a specific system or database for future reference.
as enshrined in
Suggests that something is deeply respected and preserved within a set of principles or rules.
as cataloged under
Highlights the organized placement and preservation of information within a categorized system.
as archived within
Focuses on the preservation of records within an archive for historical purposes.
FAQs
What does "as maintained in" mean?
The phrase "as maintained in" indicates that something is upheld, preserved, or consistently kept in a particular state or condition within a specific source, document, or context. It highlights the consistency or persistence of certain information or conditions.
How can I use "as maintained in" in a sentence?
You can use "as maintained in" to refer to information or conditions that are consistently upheld within a specific source. For example, "The data's accuracy is "as maintained in" the original study documents."
What are some alternatives to "as maintained in"?
Alternatives to "as maintained in" include phrases like "as stated in", "as preserved within", or "as documented in depending on the specific context".
Is it appropriate to use "as maintained in" in formal writing?
Yes, "as maintained in" is suitable for formal writing, particularly when referencing specific documents, records, or sources where certain information or conditions are consistently upheld. It adds a level of precision and credibility to your writing.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested