Three strains of facultatively anaerobic thermotolerant and moderately halophilic bacteria were isolated from two Jordanian hot spring locations. The novel Bacillus strains were short rods, Gram-positive, motile and spore formers. The strains were capable of anaerobic (but not aerobic) growth at 63C, moderately halophilic, able to grow at NaCl concentration range of 12 15 % and at temperatures ...

new profession by the possible student. The professional status of the Dentist, which was to have been made secure by the Act, was so affected by the unprofessional conduct, such as advertising and canvassing, of the uneducated and unregistered, that few could be found to enter the profession, and so what the Act set out to secure for the protection of the public, it failed to obtain, in that i...

The UDP-glucuronosyltransferase (UGT) enzymes are critical for regulating nutrients, hormones, and endobiotics, as well as for detoxifying xenobiotics. Human and murine fetuses are known to express glucuronidation enzymes, but there are currently no data prior to implantation. Here we addressed this gap in knowledge and tested whether Ugt enzymes are already present in preimplantationstage embr...

Zhang Lizhu [5] is a Chinese gynecologist and researcher. For most of her career, she worked in the Peking Medical College Third Hospital, renamed in 2000, Peking University Third Hospital [6]. There, she led a team of researchers and physicians in the study of human in vitro [7] fertilization [8] (IVF) and embryo transfer [9] (ET) technology. Zhang and her colleagues contributed to the birth o...

The style of scientific giants differs at least as much as their interests. Seymour Benzer, who died in Pasadena on Novem-ber 30, 2007, at the age of 86, was made of the stuff of the great restless explorers. But unlike the Cooks and Magellans, he never waited for a monarch's approval to sail, nor did he claim sovereignty over the new territory. With admirable drive, curiosity , and tenacity, h...

Biology lost one of its greats with the death on November 30th last year of Seymour Benzer. In the century that began with the rediscovery of Mendelian units of heredity and ended with the sequencing of the human genome, Benzer’s studies of gene fine structure defined the pivotal moment in the transition from classical to molecular genetics. This quiet devoté of science, with an impish sense of...

The conception of complement-fixing antibody put forward by Ehrlich (1898, 1900) is that it has two receptors (one cytophilic and one complementophilic) and that the reaction between the antigen and antibody is not complete until complement has acted upon them. According to him this complement-fixing antibody is a receptor of the third order, and, as such, differs from other antibodies, such as...