HoodedHawk

A recent article in the June issue of Journal of Agricultural and Food Chemistry by Isao Kubo (Univ. of Cal., Berkeley) shows that the juice from salsa has antibacterial properties (it kills Salmonella). Salsa normally contains tomatoes, onions, cliantro and green chilies. The scientists isolated the compound that has antibactierial properties: dodecanal from the fresh cilantro leaves. Science News reports “not only did it kill the bacterial cells, but it was twice as potent as gentamicin, a drug commonly used to treat the foodborne illness”

Rico the Border Collie is 9 years old and knows about 200 words… See the article in Science at: Can a Dog Learn a Word?

Multiplication of tumor cells is suppressed by the same set of genes as those that suppress multiplication of normal cells of the same type during differentiation; tumors arise when these genes are impaired.

Oncogenic mutations (and oncogenic viruses) release the brakes that tumor-suppressor genes apply.

-essentially says that the laws of physics don’t change when we switch between different reference frames.

For the past century there have been two incompatible theories on how the universe works:

Gravity (courtesy of Einstein’s general theory of relativity) and
Quantum Theory (used for the other three fundamental forces of nature: electromagnetism and the strong and weak nuclear forces ).

Both work ok, except in extreme environments (like inside a black hole). So, scientists are looking for a good theory of Quantum Gravity. The problem is that relativity wants gravity to be continuous, while quantum theory wants it grainy.