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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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separated by a day

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "separated by a day" is correct and usable in written English.
It can be used to describe events or actions that occur with a one-day interval between them. Example: "The two meetings were scheduled a week apart, with the first one separated by a day from the second."

✓ Grammatically correct

Clinical trials

Scientific research

Medical procedures

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

Hospitalizations separated by a day or less were considered as one.

Each session lasted 60 min, and sessions were separated by a day.

Science

Plosone

Each session lasted 90 min. Sessions were separated by a day.

Science

Plosone

Human-verified similar examples from authoritative sources

Similar Expressions

57 human-written examples

Twenty-five patients, median age 69 (range 65-77), without any prior systemic anticancer therapy received a continuous infusion of IL2 at a dose of 18 x 10 6) iu m-2 d-1 for 2 periods of 5 days separated by a 6 day break.

Groups of ten male and ten female Fischer 344 rats were exposed by inhalation 3.1, 0.6, 0.15, or 0.0 (control) ppm of methyl isocyanate (MIC) vapor 6 hr per day for 8 days (two 4-day sessions separated by a 2-day rest).

Female Fisher344 rats were given two, four day cycles of cisplatin (2 mg/kg) or saline, separated by a 10 day rest period.

Reliability of MOS-SS subscale domains was evaluated using test-retest methodology separated by a 1 3 day interval for the 4-week recall period and a 7-day interval for the 1-week recall period.

Each participant took part in two testing sessions separated by a 14 25 day interval.

Science

Cortex

The phases were separated by a 10 day "wash out" period.

News & Media

Los Angeles Times

For the last 7 days of each treatment period the diet was fully controlled, and treatments were separated by aday wash-out period.

At the end of each block, we add taper periods 2 days (Monday, Friday) of alternate exercises using Thera-Bands, separated by a 1RM testing day (Wednesday)—because the use of Thera-Bands has been shown to increase performance in older women [ 46].

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Expert writing Tips

Best practice

When describing research protocols or clinical trials, use "separated by a day" to clearly indicate the timing between interventions or measurements for clarity and reproducibility.

Common error

Avoid using "separated by a day" when the actual interval is less than or more than a full day, as this phrase denotes a precise 24-hour separation. If the interval is approximate, consider using phrases like "approximately a day apart" or "about a day later."

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 "separated by a day" functions as a prepositional phrase modifying a noun or verb, indicating the temporal distance between two events or actions. It specifies that there is a one-day interval between whatever is being described. Ludwig confirms the phrase is usable in written English.

Expression frequency: Uncommon

Frequent in

Science

88%

News & Media

7%

Formal & Business

0%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "separated by a day" serves as a precise way to indicate a 24-hour interval between events. Ludwig AI confirms its correct usage and highlights its prevalence in scientific and medical contexts, reflecting a need for accuracy in describing experimental designs and treatment schedules. While alternatives like "one day apart" exist, "separated by a day" offers clarity and is suitable for formal communication. When clarity is needed, ensure the interval is exactly 24 hours. Remember, as Ludwig.guru exemplifies, understanding nuances in temporal phrases can enhance the precision and credibility of your writing.

FAQs

How can I use "separated by a day" in a sentence?

You can use "separated by a day" to indicate a specific interval between events, such as "The two treatments were "one day apart"" or "The measurements were "spaced one day out"".

What is an alternative to "separated by a day"?

Alternatives include "one day apart", "a day in between", or "24 hours later", depending on the desired level of precision and formality.

Is it correct to say "separated by one day" instead of "separated by a day"?

Both "separated by a day" and "separated by one day" are grammatically correct, but "separated by a day" is more common and sounds more natural in most contexts. The alternative "separated by one day" is accurate but less frequently used.

What is the difference between "separated by a day" and "separated by a week"?

"Separated by a day" indicates an interval of 24 hours, while "separated by a week" indicates an interval of 7 days. The choice depends on the specific timeframe you want to convey. Using the correct time indicator improves clarity.

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Real-world application tested

Most frequent sentences: