Comparison of a 2D iPad application and 3D body scanner to air displacement plethysmography for measurement of body fat percentage.

Background: Novel and innovative imaging methods that rapidly estimate body fat percentage (%BF) are publicly available, yet little is known about their accuracy. The present study evaluated the test-retest reliability of a two-dimensional iPad (Apple, Inc., Cupertino, CA, USA) application (2D APP) and a three-dimensional body scanner (3D SCAN) for estimating %BF and compared both imaging methods with air displacement plethysmography (Bod Pod; Cosmed USA, Inc.

Mapping of 41 chemotaxis, flagellar and motility genes to a single region of the Sinorhizobium meliloti chromosome.

Three previously identified gene clusters that contain chemotaxis (che), flagellar (fla) and motility (mot) genes of Sinorhizobium meliloti (formerly Rhizobium meliloti) were mapped to a contiguous 45-kb region of the S. meliloti RU11/001 genome by pulsed-field gel electrophoresis (PFGE) in combination with Southern hybridization. The entire region was cloned and sequenced.

Three genes of a motility operon and their role in flagellar rotary speed variation in Rhizobium meliloti.

The peritrichous flagella of Rhizobium meliloti rotate only clockwise and control directional changes of swimming cells by modulating flagellar rotary speed. Using Tn5 insertions, we have identified and sequenced a motility (mot) operon containing three genes, motB, motC, and motD, that are translationally coupled. The motB gene (and an unlinked motA) has been assigned by similarity to the Escherichia coli and Bacillus subtilis homologs, whereas motC and motD are new and without known precedents in other bacteria.