'hard nucleus' is a correct and usable phrase in written English.
It is typically used to refer to the core or central component of a group or organization, such as in the example, "The hard nucleus of the team has not changed in five years."
It is difficult to perform cataract surgery on an elderly patient owing to additional difficulties like coexisting systemic disorders, the difficulty of patient cooperation during surgery, higher incidence of hard nucleus, smaller pupil size and high rate of pseudoexfoliation syndrome.
The age range is wide, but a hard nucleus is being formed of former service personnel.
To evaluate the efficacy and safety of phacoemulsification using torsional modality with different parameter settings for hard nucleus cataract extraction.
Fifty-six patients of immature senile cataract with hard nucleus (grade 3 and 4) who underwent phacoemulsification were included.
Torsional combined with ultrasound power or high fixed torsional amplitude can yield more effective hard nucleus phacoemulsification than conventional ultrasound modality.
In the case of a hard nucleus, it is easily occluded by the nucleus fragments and needs to be manually rinsed.
PEX with cataract is a challenging situation with probable higher intraoperative complications as compared to other cataracts due to weak zonules, poor pupillary dilatation and harder nuclei.
Cassavetes filmed with a combination of passionate proximity and gestural freedom that both reveals actors in intense physicality and abuts the hard, unbreakable nucleus of inner opacity.
But it helps to remember that musical Southern California is not only Lou Harrison, the Beach Boys and have-a-nice-day, but a hard-core nucleus of new-music followers spawned in part by fellow Angelenos like Igor Stravinsky and Arnold Schoenberg and later promoted by Lawrence Morton.
Phacoemulsification was used to treat cataracts with hard, large nuclei.
To see the extra asymmetry, the incoming electron must strike the nucleus hard enough to blast out a single quark, setting off a shower of particles, as was done in E122 but not in subsequent experiments.
