The phrase "also at low levels" is correct and usable in written English.
It can be used when discussing the presence or occurrence of something in addition to other levels, specifically indicating that it is also found at lower levels.
Example: "The chemical was detected in the environment, but it was also at low levels in the water supply."
Alternatives: "additionally at minimal levels" or "likewise at reduced levels".
The proposed method is found to outperform some of the state-of-the-art speech enhancement methods not only at high but also at low levels of SNR in terms of standard objective measures and subjective evaluations including formal listening tests.
CA3 is expressed at high levels in skeletal muscle but also at low levels in other tissues including brain.
Their paralogs Lam4p and Ysp1p showed the same pattern, also at low levels of expression.
Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were also at low levels (LH 0.3 mIU/mL [standard value: 6.7-38.0 mIU/mL] and FSH 3.4 mIU/mL [standard value: 26.2-113.3 mIU/mL]).
RITA-1 mainly expresses in developing seeds of rice [ 22]. osZIP-1a and osZIP-2a in vegetative parts [ 23], OSBZ8 expresses normally in developing rice embryo and inducible by dehydration or salinity stress in vegetative tissues [ 24], TRAB1 expresses in developing seeds but also at low level in vegetative tissues of young rice plants [ 25].
Aqueous sulfide is also present at low levels (<3 × 10−6 M) at this time, consistent with equilibrium with mackinawite (FeS).
G-CSF mRNA was also detected at low levels in the heart of mutant mice.
Of note, MS4a4B is also expressed at low levels in bone marrow cells.
CCR7 that is important for homing of DCs to T cell rich areas was also expressed at low levels.
In the mouse testis, Klf4 is strongly abundant in round spermatids [68], [69], but it is also found at low levels in cultured spermatogonial stem cells [70].
hBD-3 is expressed more broadly than hBD-2 as it is also found at low levels in normal epidermis and a few other tissues.
