at each day

USAGE SUMMARY

The phrase "at each day" is not correct in standard written English.
It is typically intended to express a recurring action or event that happens daily, but the correct expression would be "each day" or "every day." Example: "I make it a point to exercise at each day."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

After transfection as described previously, 20 μl of MTT (5 g/L, Sigma) was added into each well at each day of 4 consecutive days after treatment and the cells were incubated for additional 4 h.

BMC Cancer

The BMSC proliferation data of these two groups at each day (1 to 12 days) were tested by unpaired Student's t test, and the statistical result indicates that there was no statistically significant difference in BMSC growth characteristics between ASp and HDs (HD1 and HD2) (P > 0.05, Student's t test for independent samples).

Arthritis Research and Therapy

Established cultures (12 days) of BMSCs exhibited close, even equivalent, cell viability at each point of time from 1 to 12 days, as determined by cellular viability assays, and the difference of OD at 490 nm between ASp and HDs (HD1 and HD2) at each day (1 to 12 days) was not also statistically significant (P > 0.05, Student's t test for independent samples).

Arthritis Research and Therapy

Subsequently, 50  μL of MTT dilution (5 mg/mL, KeyGEN, China) was added into each well at each day of the consecutive 3 days after transfection and the cells were incubated at 37°C for additional 4 h.

BioMed Research International

The time point of 48 h was selected based on bleomycin effect measured at each day from 1 to 7 days after bleomycin treatment in these cell lines (see Figure 1S in Supplementary material available online at http://dx.doi.org/10.1155/2014/921296 and protocol D in Materials and Methods, Section 2.9).

BioMed Research International

Spheroids were analysed at each day for the presence of active caspase 3 but only after 7 days growth did we detect consistent positive staining for 2% of the total cells within an acinus (figures 1a and 2a).

Cell Death and Differentiation

The thermocline evolved during the first 3 days at Helgoland long after the chlorophyll peak formation to disappear at each day in the late afternoon.

Environmental Sciences Europe

"He's looking at each day and seeing if he can accomplish something.

The New York Times

You can't look at each day, whether it was good or bad, or you'll drive yourself crazy.

The New York Times - Sports

No significant differences in the capture efficiency at each day of trapping, neither in the number of species or in the sex of sand flies were observed.

Acta Tropica

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

Information regarding the extent of exposure of the children, as evidenced by the number of working hours of the index case at each day-care and after-school-care centre was collected from the stored working hour lists of the index case, and corrected after an interview with the index case.

BMJ Open

Expert writing Tips

Best practice

When referring to daily occurrences, favor using "every day" or "each day" over "at each day" to ensure grammatical correctness and clarity. For example, say "I learn something new each day" instead of "I learn something new at each day".

Common error

A common mistake is using "at" as a superfluous preposition before "each day". While "at" can denote a specific point in time, it's unnecessary when describing a recurring daily event. Avoid using "at" to prevent grammatical errors.

Linguistic Context

The phrase "at each day" functions as an adverbial modifier, attempting to specify when an action or state occurs. While intended to convey a daily recurrence, Ludwig AI identifies the phrase as grammatically non-standard, suggesting the use of alternatives like "each day" or "every day".

Expression frequency: Very common

Frequent in

Science

70%

News & Media

20%

Formal & Business

10%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, while the phrase "at each day" appears relatively frequently, particularly in scientific and news contexts, Ludwig AI points out that it is grammatically incorrect. Standard English prefers "each day" or "every day" to convey the intended meaning of daily recurrence. Although "at each day" is widespread, especially as demonstrated by the examples Ludwig provides, adopting the grammatically correct alternatives ensures clarity and precision in writing. Remember to favor "each day", "every day", or other alternatives like "on a daily basis" for better grammatical accuracy.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every day

More grammatically correct and commonly used alternative. It directly indicates a daily recurrence.

each day

A standard and grammatically sound alternative, emphasizing individual days within a sequence.

on a daily basis

Emphasizes the routine or regular nature of an event.

day after day

Highlights the continuous and repetitive aspect of daily occurrences.

daily

A concise adjective describing something that happens every day.

day by day

Focuses on the gradual progression or change that occurs over successive days.

per diem

Latin term, signifies 'by the day'. More formal, often used in business contexts.

on a per-day basis

More formal, emphasizing the cost or rate for each individual day.

day in and day out

Highlights the monotonous or unchanging nature of daily routine.

on a daily schedule

Focuses on the routine or regular nature of a schedule performed daily.

FAQs

What is the correct way to say "at each day"?

The grammatically correct alternatives to "at each day" are "each day" or "every day". These options avoid the unnecessary preposition "at".

When should I use "daily" instead of "at each day"?

Use "daily" as an adjective to describe something that happens every day, like "daily routine". Avoid "at each day", which is grammatically incorrect. "Daily" is more concise and appropriate in many contexts.

Is there a difference in meaning between "each day" and "every day"?

While subtle, "each day" can emphasize individual days, while "every day" highlights the continuous nature of the action. However, both are better options than "at each day".

What are some other ways to express something that happens daily?

Besides "each day" and "every day", you can use phrases like "on a daily basis" or "day after day" to convey a similar meaning, while avoiding the grammatically incorrect "at each day".