Ancient Egyptian astronomers may have discovered variable stars, and calculated the period of a well-known one called Algol, thousands of years before Europeans.
Principal component analysis (PCA) was used here as a numerical method of discovering variables that are more important than others for representing parameter variation and identifying hydrogeochemical processes.
After discovering variable harlequin frogs again, she and her colleagues have returned to their Panama research sites and found a few other species that had previously vanished.
This paper presents the Partial-Value Association Discovery (PVAD) algorithm which discovers variable relations/associations that exist in partial ranges of variable values from large amounts of data in a computationally efficient way.
To discover variable SNP loci for inclusion in a SNP panel, a sample of individuals representing the taxon of interest is sequenced.
As library costs decrease, we will see even more opportunities for discovering variable loci for large numbers of species at low cost, or for directly comparing chloroplast DNA from multiple pooled populations.
Discovered NHANES variables can be broadly categorized into mental health, oral health, lifestyle limitations, diet, and income level.
Additionally, we discovered other variables (i.e., admission status, age, emergency classification, procedure, and diagnosis) that independently affect data sufficiency.
In 1908, for example, Henrietta Leavitt discovered Cepheid variable stars, which have proved crucial to the measurement of cosmic distances.
With their magnetograph the Babcocks demonstrated the existence of the Sun's general field and discovered magnetically variable stars.
