3/31/2004:

Intermediate Word:  candela  pertaining to (a) barbel projecting in front of a candlefish   (b) one candlepower  (c) membrane separating the abdomen from the chest cavity  (d) taper
Difficult Word: -dolichocephalic  (a) long head  (b) wide head  (c) large cephalic index  (d) small cephalic index


Report: China to Launch Moon Rover in 2012 - Space.com  The vehicle's main purpose would be to provide information on where to set up a base on the moon, the Beijing Youth Daily newspaper said Sunday, citing Ouyang Ziyuan, lead scientist of the country's lunar probe program. The rover is part of the three-phase lunar probe program, also called "Chang'e," after a fairy in Chinese folklore who flies to the moon. The first phase is under way, with Chinese scientists building a two-ton lunar probe that is to be launched by 2007.
Jaw-dropping theory of human evolution  - Nature  A mutation 2.4 million years ago could have left us unable to produce one of the main proteins in primate jaw muscles, the team reports in this week's Nature1. Lacking the constraints of a bulky chewing apparatus, the human skull may have been free to grow, the researchers say. The timing of the mutation is consistent with rampant brain growth seen in human fossils from around 2 million years ago, says Nancy Minugh-Purvis of the University of Pennsylvania in Philadelphia, who helped with the study. "Right at the point you lose power in these muscles, brain size evolution accelerates," she says. The story hinges on a protein called MYH16, a chief component of the powerful jaw muscles of many non-human primates such as chimpanzees and gorillas. When the researchers examined human DNA samples from across the world, they discovered that we all share a defect in the gene that creates this protein.

Bacteria 'may cause cancers'  - BBC   Alistair Lax, professor of cellular microbiology at King's College London, said bacteria may be involved in stomach, renal and bowel cancers. He is scheduled to tell scientists that there is now evidence to suspect bacteria in a range of cancers. He will highlight recent studies into Helicobacter pylori. Many scientists now believe it may also play a role in stomach cancer. "It is not every bacteria and it is not every cancer but in some cancers there is growing evidence to suggest some bacterial toxins could have a role." A growing number of scientists are carrying out research in this area.





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