The phrase "and in the levels" is correct and usable in written English.
It can be used when discussing different stages, tiers, or layers of a system, process, or concept.
Example: "The analysis revealed significant differences in performance and in the levels of engagement among the participants."
Alternatives: "and across the tiers" or "and at various stages".
Four ruminally cannulated late-lactating dairy cows were restrictively fed (17 kg of dry matter/d), in four 23-d periods, 1 of 4 different diets varying in the theoretical particle size (6 and 30 mm) of hay (56.6% NDF of dry matter) and in the levels (approximately 20 and 60%, dry matter basis) of a cereal-based concentrate.
The analysis of the molecular effects of Pim-1 inhibition reveals a complex regulatory network, with therapeutic Pim-1 repression leading to major changes in oncogenic signal transduction with regard to p21Cip1/WAF1, STAT3, c-jun-N-terminal kinase (JNK), c-Myc, and survivin and in the levels of apoptosis-related proteins Puma, Bax, and Bcl-xL.
Cows were restrictively fed (17 kg dry matter (DM /d) one of four diets varying in the theoretical PS (6 and 30 mm) of grass hay and in the levels (approximately 200 and 550 g/kg, DM basis) of a cereal-based concentrate.
STZ resulted in diabetic neuropathy with hyperglycemia and a lower paw withdrawal threshold (PWT), accompanied by elevations in the expression of the NADPH oxidase subunits p47phox and gp91phox and in the levels of hydrogen peroxide (H2O2) and malondialdehyde (MDA) and a reduction in superoxide dismutase (SOD) activity (P < 0.05) in the spinal cord.
The latest inspection found failings in the preparation of patient care plans and in the levels of staff understanding of Do Not Attempt Resuscitation (DNAR) forms.
We found that despite similar Mtb loads, mice from each group displayed significant variability in the degree of wasting, and in the levels of inflammatory cytokine and chemokine expression (see Figure 4, for examples).
