In a population, deleterious insertions (i.e. ones that reduce the host's fitness) will tend to be eliminated, whereas neutral and advantageous effects may be maintained, as are some other polymorphisms/mutations.
In addition, they collected 144 Arabidopsis accessions to assess if the signature of fluctuating selection can be seen among these accessions as well and this analysis shows non-random variation of glucosinolate haplotypes suggesting that fluctuating selection may maintain genetic variation here as well.
"Particularly when people think that they might not be able to live up to others' views of them, they may maintain that they are not as good as other people think," Dr. Mark Leary, the lead author, wrote in an e-mail message.
This swarm state η* may maintain its physiological function for as long as the swarming elements remain alive, dispersing only after their death and decay.
However, one possibility could be that rumination may maintain depressive symptoms as it involves repetitively and passively focusing on the possible causes of symptoms, which may include and enhance depressive cognitions (e.g., Nolen-Hoeksema et al. 2008).
"This could potentially affect consumption of food as well as nonfood items, as individuals may maintain the same food intake but reduce spending on other items," Mr. Feroli said.
You may also want to check with your Secretary of State's Office, as it may maintain a list of companies that serve as process agents.
In Houston, for example, or Denver, with its EXpressToll system, drivers may maintain regular highway speeds as they pass under cameras hanging from steel beams high above the traffic.
Also in this model, compensatory glutamate synthesis may maintain stable glutamate levels as suggested above.
Former players turned coaches may maintain endorsements from their days as a pro and make side deals as they transition into their new career.
