Galactosamine was found consistently as a minor component of the envelope of five species of slow-growing mycobacteria, including all the major human pathogens, but not three rapid-growing species. The amino sugar was a component of the arabinogalactan of the cell wall skeleton, and occurred at the level of about one residue per arabinogalactan chain. Its amino group was in the free, un-N-acety...

Dermoscopy revealed a well-defined, erythematous-pink tumor (Fig. 2A) with prominent, more or less evenly distributed blood vessels, with characteristic cherry blossom images mostly at the periphery of the tumor (Fig. 2B), and pale pink structureless areas (Fig. 2A). With a suspected diagnosis of eccrine poroma, the lesion was excised and the histological findings confirmed the diagnosis. Eccri...

Nitrogen management practices have an effect on crop yields but they can also have a negative impact on the environment. Practices such as banding fertilizer and/or split-applying total nitrogen needs per acre offer a more efficient use of nitrogen by significantly reducing nitrate leaching potential. Heavy rains occurring when plants are small and nitrogen demands are low can also increase nit...

The growth rates of bacteria must be coordinated with major cell cycle events, including chromosome replication. When the doubling time (Td) is shorter than the duration of chromosome replication (C period), a new round of replication begins before the previous round terminates. Thus, newborn cells inherit partially duplicated chromosomes. This phenomenon, which is termed multifork replication,...

Dermoscopy revealed a well-defined, erythematous-pink tumor (Fig. 2A) with prominent, more or less evenly distributed blood vessels, with characteristic cherry blossom images mostly at the periphery of the tumor (Fig. 2B), and pale pink structureless areas (Fig. 2A). With a suspected diagnosis of eccrine poroma, the lesion was excised and the histological findings confirmed the diagnosis. Eccri...

Dermoscopy revealed a well-defined, erythematous-pink tumor (Fig. 2A) with prominent, more or less evenly distributed blood vessels, with characteristic cherry blossom images mostly at the periphery of the tumor (Fig. 2B), and pale pink structureless areas (Fig. 2A). With a suspected diagnosis of eccrine poroma, the lesion was excised and the histological findings confirmed the diagnosis. Eccri...