Jacob’s Well

-Jacobs, M

In this taxonomic paper Almeda is the first (to my knowledge) to find and report a relationship between a melastome, Clidemia hammelii, and a mite inhabiting its domatia. The genus of mite is Ololaelaps (Gamasida, familia Laelapidae) and G. W. Krantz (cited in Almeda, 1989) stated that this was an unusual habitat for this genus of mites because they are usually found on moss or leaf litter, or ...

Walter A. Jacobs, 1923

Ken Jacobs, Alchemist

Well, well, well water.

Although the multiplication of bacteriophages (phages) has a substantial impact on the biosphere, comparatively little is known about how the external environment affects phage production. Here we report that sub-lethal concentrations of certain antibiotics can substantially stimulate the host bacterial cell’s production of some virulent phage. For example, a low dosage of cefotaxime, a cephalo...

On the Marshall – Jacobs Controversy: It takes two to tango

The literature is inconclusive as to whether Marshallian specialization or Jacobian diversification externalities favour regional innovativeness. The specialization argument poses that regional specialization towards a particular industry improves innovativeness in that industry. Regional specialization allows for knowledge to spill over among similar firms. By contrast, the diversification the...