Let $ m , n in mathbb{N}$, $D$ be a division ring, and $M_{m times n}(D)$ denote the bimodule of all $m times n$ matrices with entries from $D$. First, we characterize one-sided submodules of $M_{m times n}(D)$ in terms of left row reduced echelon or right column reduced echelon matrices with entries from $D$. Next, we introduce the notion of a nest module of matrices with entries from $D$. We ...

OBJECTIVE The objectives were to investigate the characteristics associated with frequent self-weighing and the relationship between self-weighing and weight loss maintenance. RESEARCH METHODS AND PROCEDURES Participants (n = 3003) were members of the National Weight Control Registry (NWCR) who had lost >or=30 lbs, kept it off for >or=1 year, and had been administered the self-weighing freque...

Portable hanging scales are a common means of weighing young children. Weighing trousers used to suspend children from a hanging scale are uncomfortable and require insertion of the child's legs through the trousers. The 'weighing seat' holds the child in a more natural, comfortable, and secure position, thus increasing the child's acceptance of the weighing procedure, and making the procedure ...

We are interested in 2-crystal sets and protocrystal sets in which every difference between distinct elements occurs zero or an even number of times. We show that several infinite families of such sets exist. We also give nonexistence theorems for infinite families. We find conditions to limit the computer search space for such sets. We note that search for 2-crystal sets (n; k1, k2), k = k1 + ...

The developmental pattern of apolipoprotein VLDL-II (apo-II) in the plasma with regard to lipid concentration was characterized during the transition of pullet females to the laying phase in commercial laying hens (Gallus domesticus). Apo-II was isolated from the plasma of estrogen-administered roosters, and a rapid ELISA was developed for its quantification in chickens. The sensitivity of the ...