Ual (pronounced as woo-aal) is a sand clock-shaped grinding tool used by the Bodo people.

Centrality in social networks : Comceptual classification
EGFR in colorectal cancer: more than a simple receptor
SimRank : A measure of structual-context similarity
Acfual Causes of Death in the United States
Classification and relationships of induced chromosomal structual changes.
Supplementry Materiual: Positive natural selection in the human lineage.
Structual Inorganic Chemistry
Discrete Variational Xalpha Calculations of UAl4, NpAl4 and PuAl4 Clusters
Regulation of a PWM rectifier in the unbalanced network state using a generalized model
Expression of epidermal growth factor receptor and survival in upper aerodigestive tract cancer