Pressure grows on Panjab University

Tourist pressure grows

On New Year's Eve, one of the world's largest aircraft, a Qantas Airbus A380 will set off for a 9,000 kilometre round trip over the Antarctic for tourists to enjoy the spectacular scenery. These tourists will leave a very large carbon footprint, even without landing on the continent, but there is additional, increasing concern about the growing pressure from cruise ships and other tourists wish...

Reproductive isolation grows on trees.

Despite rapid advances in the complementary fields of speciation genetics and molecular phylogenetics, little attention has been devoted to understanding how genetic changes associated with reproductive isolation accumulate across clades of species. We argue that comparative analyses of reproductive isolation QTL (quantitative trait loci) can generate unique insights into the underlying mechani...

Enterococcus faecalis grows on ascorbic acid.

We show that Enterococcus faecalis can utilize ascorbate for fermentative growth. In chemically defined media, growth yield was limited by the supply of amino acids, and the cells showed a much higher demand for amino acids than when they were grown on glucose.

Why Government Grows (and Grows) in a Democracy

Bioethics Grows Up

W hen I taught my first course in bioethics to first-year students at Columbia University's College of Physicians and Surgeons in the spring semester of 1981, bioethics was still in its formative years. There were scant few textbooks around and even fewer anthologies, and I could not assume that any of my students had ever read anything by a bioethicist or about bioethics. The key institutions ...