Dr. Paul B. Weisz, a 28-year-old refuges from Austria now serving as assistant professor of biology at Brown University, Providence, R.I., has discovered what may roughly he termed a third ...

Humankind's remotest relative is a very rare micro-organism from south-Norway. The discovery may provide an insight into what life looked like on earth almost one thousand million years ago.

I WAS interested in Mr. T. Goodey's letter under the above heading in NATURE of March 13, but should like to make a few remarks thereon. Hay infusion, which Mr. Goodey states caused the excystation of ...

1 Department of OBGYN, New York University School of Medicine, New York, NY 10016, USA 2 Bellevue Hospital Center, New York University School of Medicine, 462 First Avenue, New York, NY 10016, USA 3 ...

The cellular compartment of the vertebrate host innate immune system has been shown to have an important role in early resistance and the development of acquired immunity and, in some instances, in ...

This is a preview. Log in through your library . Abstract Fish respond to parasite infections (and infestations) by the production of antigen specific IgM-like antibodies as well as by the elaboration ...

A protozoan parasite causing an STD that affects a quarter of a billion people yearly is fueled in part by its own viral symbiont. Antibiotics that simply kill the parasite are not the solution. When ...

4 Laboratory of Genetics, Immunology and Human Pathologies, Faculty of Sciences of Tunis, El Manar University, 2092 Tunis, Tunisia 5 Molecular Modeling Unit, Pasteur Institute of Tunis, 1002 ...