A1 Yes. Suppose otherwise. Then there would be an N such that S(N) < 80% and S(N + 1) > 80%; that is, O’Keal’s free throw percentage is under 80% at some point, and after one subsequent free throw (necessarily made), her percentage is over 80%. If she makes m of her first N free throws, then m/N < 4/5 and (m + 1)/(N + 1) > 4/5. This means that 5m < 4n < 5m+ 1, which is impossible since then 4n ...

Growth and cesium accumulation characteristics of two cesium-accumulating bacteria isolated from soils were investigated. Rhodococcus erythropolis CS98 and Rhodococcus sp. strain CS402 accumulated high levels of cesium (approximately 690 and 380 mumol/g [dry weight] of cells or 92 and 52 mg/g [dry weight] of cells, respectively) after 24 h of incubation in the presence of 0.5 mM cesium. The opt...

Since its discovery in 1998, representatives of the extremely halophilic bacterium Salinibacter ruber have been found in many hypersaline environments across the world, including coastal and solar salterns and solar lakes. Here, we review the available information about the distribution, abundance and diversity of this member of the Bacteroidetes.

The taxonomic position of an actinomycete, strain K07-23T, isolated from a cold desert of the Himalayas, India, was established by a polyphasic approach. The strain exhibited phenotypic characters that were typical of the genus Rhodococcus. 16S rRNA gene sequence (1467 bases) comparisons confirmed that strain K07-23T belongs to the genus Rhodococcus. 16S rRNA sequence similarity studies showed ...

Introduction. The genus Rhodococcus is a non-sporeforming, high GC Gram-positive bacterium, a member of phylum Actinobacteria. Research studies for Rhodococcus have been mainly focused on its great ability to degrade recalcitrant chemicals such as poly-chlorinated biphenyls and dioxins (1, 2). Also, their pathogenic features have been intensively studied in limited species. However, only a few ...

Rieske nonheme iron oxygenases form a large class of aromatic ring-hydroxylating dioxygenases found in microorganisms. These enzymes enable microorganisms to tolerate and even exclusively utilize aromatic compounds for growth, making them good candidates for use in synthesis of chiral intermediates and bioremediation. Studies of the chemical stability and thermostability of these enzymes thus b...

The ability to generate tagged mutants of Rhodococcus spp. will facilitate a deeper understanding of this medically and commercially important genus. The absence of efficient transposon systems in these organisms has here been overcome by the use of Tn5-based DNA-protein transposition complexes which can transpose at high efficiency. To achieve this, electroporation efficiencies and antibiotic ...

Each animal population has its own acoustic signature which facilitates identification, communication and reproduction. The sonar signals of bats can convey social information, such as species identity and contextual information. The goal of this study was to determine whether bats adjust their echolocation call structures to mutually recognize and communicate when they encounter the bats from ...