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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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a variable duration

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "a variable duration" is correct and usable in written English.
It can be used when referring to a time period that can change or is not fixed. Example: "The project will have a variable duration depending on the resources available and the complexity of the tasks involved."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

39 human-written examples

Here the ions are again preinitialized at laser-cooled temperatures and subsequently heated as before, but now for a variable duration to scan the initial temperature.

Science & Research

Nature

The advantage of using the i-vector representation is that any speech utterance with a variable duration length can be represented as a fixed length vector.

Each one had a variable duration on our testbed between 2 and 30 h.

The headache exhibited a variable duration and had a throbbing or tightening character with a moderate intensity in most cases.

For clarity in the explanation, it is considered that this interbeacon period has a constant duration, although it could have a variable duration depending on the packet sizes and the transmission rates.

The remaining one third of patients would have had their procedure postponed for a variable duration, either due to the wait for an anesthetist to arrive or the time needed to attempt transfer of the patient to another facility, which may occur with significant delay and difficulty.

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Human-verified similar examples from authoritative sources

Similar Expressions

21 human-written examples

When ESRD is studied as a categorical variable (duration of 0-14 days vs longer durations), the increased risk of allograft failure reached statistical significance only when the time on dialysis was > or =181 days.

Independent determinants used were age, age of diagnosis (as a categorical variable in model 1 and as a continuous variable in model 2), A1C, weight, metabolic syndrome (as individual factors and as a dichotomous variable), duration of diabetes, sex, ethnicity, and family history of diabetes.

We presented subjects (n = 5) with a central fixation cross and a movie of variable duration that involved a static or a moving figure, randomized on a trial-by-trial basis (Fig. 7).

Science

Plosone

(4) Intermolt is a period of variable duration, from a few days in small forms to a year or more in some of the large forms.

To ensure smooth and parameterizable transitions, we use a weighting mechanism based on a variant of variable duration Hidden Markov model representation [34].

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Expert writing Tips

Best practice

When describing experiments or processes, use "a variable duration" to indicate that the length of time is not constant, allowing for flexibility and adaptation in your methodology.

Common error

Avoid using "a variable duration" when you mean an unknown or uncertain duration. "Variable" implies that the duration changes according to a defined parameter or range, while "uncertain" suggests a lack of knowledge about the duration.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a variable duration" functions as a noun phrase that modifies another noun, often describing a process, experiment, or condition. It indicates that the length of time is not fixed but can change or vary. Ludwig provides numerous examples from scientific contexts.

Expression frequency: Common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "a variable duration" is a grammatically sound and frequently used expression, particularly in scientific contexts, to describe a period of time that is not fixed but can change. As Ludwig AI confirms, this phrase is correctly used in various scholarly sources. When employing this phrase, ensure that the variability is intentional and potentially measurable, distinguishing it from "uncertain duration", where the length of time is simply unknown. Alternatives such as "flexible time frame" or "adjustable period" may be suitable depending on the specific nuance you wish to convey.

FAQs

How do I use "a variable duration" in a sentence?

Use "a variable duration" to describe a period of time that is not fixed and can change depending on the context. For example: "The experiment involved exposing the samples to heat for "a variable duration"."

What are some alternatives to using "a variable duration"?

Alternatives include "a flexible time frame", "a fluctuating length of time", or "an adjustable period". The best choice depends on the specific nuance you want to convey.

Is it better to say "variable duration" or "varying duration"?

Both phrases are acceptable, but "variable duration" is more common in technical and scientific writing. "Varying duration" might be preferred in more general contexts.

What does "a variable duration" imply about the length of time?

It implies that the length of time is not fixed or predetermined, and it can change based on certain conditions or parameters. It suggests a degree of flexibility or adaptability.

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Real-world application tested

Most frequent sentences: