The phrase "advanced grades" is correct and usable in written English.
It can be used to refer to higher levels or stages of academic achievement, often in the context of education or assessment.
Example: "Students in advanced grades are expected to tackle more complex subjects and projects."
Alternatives: "higher grades" or "upper-level grades".
These contain 2.1, 8.4 and 12.6 at.% Co; the concentrations of Al, Cr, Ta, W, Re, Hf are identical and chosen to be representative of advanced grades of these alloys.
Findings of this review work emphasize the need to shift the research focus from currently used grades X65, X70 and X80 to the advanced grades X90, X100 and X120.
Conclusions: A single course of betamethasone administered antenatally to patients with preterm premature rupture of membranes was associated with decreases in the frequencies of both respiratory distress syndrome and advanced grades of intraventricular hemorrhage without any increase in perinatal infectious morbidity.
The difficulty of each TRC-n and TRC-e form increased with more advanced grades, as expected of an instrument that measures a construct that changes over the course of learning (Hardy et al., 2011; Kolen & Brennan, 2014).
Recently, however, a trend associated with increased p27 staining with advanced grades of endometrial carcinoma was reported (Nycum et al, 2001).
Thus, this demonstrates, in terms of better prognostication, that invasive front grading (IFG) system by Bryne does not inaccurately diagnose the tumor to advanced grades.
Its anti-tumour activity has shown to inhibit proliferation and migration of a number of advanced grade human tumors cell lines in a dose dependent manner [9 11].
Cancer progenitor cells at any given stage of differentiation can undergo EMT to achieve a further stage of differentiation and develop into an advanced grade of cancer.
By 15 Ma, a more advanced grade of ape also inhabited East African sites, overlapping with a few long-surviving lineages of STEM primates.
Grade is assessed by noting the most advanced grade present within cartilage, irrespective of its horizontal extent (grades 1 4: articular cartilage changes only; grades 5 6: cartilage and subchondral bone).
Following the discovery of this advanced grade of ape at the 14-million-year-old site of Fort Ternan, Kenya (Leakey 1962), Louis Leakey's Kenyapithecus became a catchall for large-bodied Middle Miocene apes found throughout that country.
