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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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as at days

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "as at days" is not correct and does not convey a clear meaning in written English.
It seems to be an attempt to refer to a specific time or date, but it is not a standard expression. Example: "As at days, we have not received any updates on the project."

⚠ May contain grammatical issues

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

This was also done one day later, as well as at days 8, 15, and 22 after in-house transport or shipment always in the morning between 8-10 AM.

PCT, CRP, the sepsis criteria (American College of Chest Physicians/Society of Critical Care Medicine definitions), and the Sepsis-related Organ Failure Assessment score were measured at days 1 7, as well as at days 14 and 21, concluding the observation period with the 28-day survival.

From day 3 of adulthood up until termination of the experiment, each worm group was treated daily with the same compound as at days 1 and 2 of adulthood.

Science

Aging Cell

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

For each of these sets, we identified significant trauma-responsive genes and the difference in the genome-wide expression patterns overall, as well as differences at days 0.5, 1.0, and 4.0 days after injury (P <0.001, F-test).

By treating the commonly-used MPC line C3H10T1/2 cells with 9CRA (0, 5, 10 and 20 µM), we found that the early osteogenic marker alkaline phosphatase (ALP) activity was significantly induced at as early as at day 5 (Fig. 1A).

Science

Plosone

Examination of bladder tissue revealed that Pten-deficient bladders and Lkb1-deficient bladders did not show any significant morphological differences from WT counterparts at day 50 (Fig. S1) as well as at day 100 (Fig. 1, C).

Science

Plosone

As at day 2 of infection, IL-2 levels were significantly higher than normal in mice immunized with ΔfupAΔcapB (5-fold) as well as in mice immunized with LVS (6-fold).

Science

Plosone

No protection was achieved with serum transfer from non-immunized mice, as at day 7 post infection, the bacterial burden (∼107) was similar to that observed in the infected control mice.

Science

Plosone

At day 15 (not shown), as well as at day 21 (Figure 2B), we observed a significant decrease (Anova, p<0.001) in the percentage of FoxP3+ within CD4+ T splenocytes of anti-CD25-treated mice, compared to their counterparts injected with PBS or with the control IgG (Figure 2B).

Science

Plosone

Moreover, PECAM-1 staining performed to visualize blood capillaries revealed a decreased microvessel density in tumors from PPARα KO hosts when compared to tumors from WT hosts of the same size at day 7 (data not shown), as well as at day 30 post implantation (Figure 2B).

Science

Plosone

The second and third measurement was performed as T2W at days 7 and 28 after MCAO, representing tissue necrosis in this later phase.

Science

Plosone
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Expert writing Tips

Best practice

Avoid using the phrase "as at days" in formal writing. Instead, opt for clearer alternatives such as "as of [date]" or "on [date]" to ensure clarity and grammatical correctness.

Common error

Using "as at days" may stem from a misunderstanding of how to properly reference specific points in time. To avoid this, always use a recognized temporal phrase like "as of [date]" or "on [date]" to clearly denote the reference point.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

60%

Authority and reliability

1.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "as at days" is intended to function as a prepositional phrase, attempting to specify a timeframe. However, it does not conform to standard English grammar and lacks a clear, recognized function. As Ludwig AI suggests, there are more suitable alternatives.

Expression frequency: Missing

Frequent in

Science

0%

News & Media

0%

Formal & Business

0%

Less common in

Science

0%

News & Media

0%

Formal & Business

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Ludwig's WRAP-UP

In summary, the phrase "as at days" is grammatically incorrect and should be avoided in both formal and informal writing. Ludwig AI suggests that this phrase is not a standard English expression. More appropriate alternatives like "as of [date]", "on [date]", or "at that time" should be used to ensure clarity and correctness. Using the phrase might lead to misunderstandings and is not recommended. Proper temporal phrasing is essential for clear communication, making the use of correct alternatives vital.

FAQs

What does "as at days" mean?

The phrase "as at days" is not a standard English expression and is considered grammatically incorrect. It lacks a clear and recognized meaning in common usage.

What can I say instead of "as at days"?

You can use alternatives like "as of date", "at that time", or "on those days" depending on the context.

Is it correct to say "as at days"?

No, it is generally considered incorrect to say "as at days" in formal or standard English. It's better to use more precise and grammatically accepted alternatives.

Which is the correct way to refer to a specific time, "as at days" or "as of" a specific date?

"As of" a specific date is the correct and preferred way to refer to a specific point in time. Avoid using "as at days" as it is not grammatically correct.

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