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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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duration over which

Grammar usage guide and real-world examples

USAGE SUMMARY

"duration over which" is a correct and usable phrase in written English.
You can use it when you need to express how long something lasts or takes. For example: "The duration over which the research was conducted was three months."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

54 human-written examples

The duration over which lipid containing compounds such as biodiesel can be stored before use depends on their stability.

CPI is a statistical measure of the time duration over which the received signal pulse responses are essentially invariant [10].

This control maximizes the length of the time duration over which the control value is exactly zero.

Scalar changes to the system affect the duration over which processes occur as well as the degree of variance, but appear to leave overall structural patterns unchanged.

One of the issues that we explore in this study is determining the duration over which the cost should be computed.

As the duration over which a stress change acts increases, its effect on the time of a future earthquake becomes larger (Dieterich, 1994).

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Human-verified similar examples from authoritative sources

Similar Expressions

6 human-written examples

However, although the wide strap design had the lowest VAS scores, no significant difference was found in strap discomfort among the three strap designs, which may also be attributed to the short durations over which the straps were worn.

The average pH and the percent durations over which the intragastric pH remained above 1, 2, 3, 3.5, 4, 5, 6, 7 and 8 during the 6-hour monitoring period after the administration of each drug were also measured.

The predicted durations over which 95% of women receiving a full 3-dose vaccine course would maintain an antibody response above that associated with natural infection were estimated by the piece-wise and modified power-law models.

Structural sensitivity analyses were also undertaken to explore the impact of alternative durations over which patients may relapse on cost-effectiveness estimates, as well as the impact of assuming a 5-year time horizon for the evaluation of costs and health outcomes.

The durations over which anti-HPV-16 and anti-HPV-18 antibody levels, as assessed by ELISA, were predicted to remain above the level induced by natural infection in at least 95% of women were also longer in the HPV-16/18 HPV-16/18roup than the HPvaccine16/18 vaccine group, supporthan the results of the PBNA analysis (Table 2 B).

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Expert writing Tips

Best practice

When using "duration over which", ensure the context clearly defines what event or process is occurring during that time. Be specific to avoid ambiguity.

Common error

While "duration over which" is grammatically correct, overuse can make writing sound convoluted. In some cases, simpler alternatives like "during" or "while" may be more effective and improve readability.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "duration over which" functions as a prepositional phrase modifying a noun or verb, indicating the length of time something occurs. As Ludwig AI confirms, it's grammatically sound and common in scientific contexts.

Expression frequency: Common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, the phrase "duration over which" is a grammatically sound and frequently used expression, particularly within scientific and academic writing. As Ludwig AI confirms, it effectively conveys the length of time during which something occurs. While versatile, remember that simpler alternatives might be preferable in less formal settings. The linguistic analysis indicates that this phrase primarily functions to specify timeframes. By understanding its proper use and potential alternatives, writers can effectively communicate temporal aspects in their writing.

FAQs

How can I use "duration over which" in a sentence?

Use "duration over which" to specify the length of time an event or process takes place. For instance, "The duration over which the experiment was conducted was three weeks."

What's a simpler alternative to "duration over which"?

Depending on the context, you can often replace "duration over which" with words like "during" or phrases such as "period in which".

Is "duration over which" formal or informal?

"Duration over which" leans towards a more formal register, commonly used in academic and scientific writing. For informal contexts, consider simpler alternatives.

Does "duration over which" refer to past, present, or future time?

"Duration over which" can refer to any time frame (past, present, or future), depending on the context of the sentence. For example, "The duration over which the study will be conducted is two years" refers to a future time.

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