August 20, 2010 |
"The Switch," the very dry romantic comedy starring Jennifer Aniston and Jason Bateman, is what you might call a Bate-and-switch affair. More his journey than hers, more satire than slapstick, the film is that rare example of rom-com about men, which turns out to be a nice switch indeed. Bateman is Wally, one of those smart neurotics forever bemoaning his half-empty glass. He's a Wall Street whiz, which in this day and age is reason enough for pessimism and paranoia, except that Wally's business is booming and his best friend is Aniston's Kassie, a beautiful network exec/girl next-door type (it's a very good neighborhood)
CALIFORNIA | LOCAL
July 2, 1996
Re "Bioethics at Center Stage," editorial, June 23: I am extremely disturbed by the implications of Ralph Brinster's discovery of "biological immortality." One, because eternal storing of male sperm of endangered species may mean the ability to restore almost-extinct animals in the future, but where will we put them when their habitat will have long been usurped by us humans? Two, if this technique is used to "immortalize" humans, it will be the sperm of males. Are females not carriers of "superior" eggs?
September 17, 2012 |
It's a new day for sexual surveillance: A team of scientists has developed an imaging technique that allows three-dimensional tracking of the movements of 1,500 human sperm at one time. Because of the limitations of microscopes and other traditional tools for imaging moving objects such as sperm, scientists typically have been unable to watch the behavior of cells over time as they move. The new technique gets around this by imaging the shadows of sperm using light of two different wavelengths produced from two different angles at the same time. As a result, the researchers could simultaneously track hundreds of sperm as they moved through liquid.
August 5, 2011 |
If you know just one thing about embryonic stem cells, it's probably that they have the potential to grow into any type of cell in the body. That, of course, is why scientists find them so valuable. But having the potential to become any type of cell is not the end game -- research groups around the world are trying to figure out the precise recipe for turning those stem cells into specific types of cells that would be useful for studying or treating various diseases. This week, a group of Japanese researchers from Kyoto University said they had figured out a way to turn embryonic stem cells into the more specific type of stem cell that makes sperm.
May 30, 1996 |
A new technique to freeze sperm-producing tissues can provide "biological immortality" for males, a finding that researchers believe may ultimately have a major impact on conserving endangered species, protecting valuable research animals and preserving the reproductive ability of males who undergo intensive chemotherapy for cancer. The technique may even make it possible for men with abnormally low sperm production to reproduce.
November 22, 1994 |
The first experiments showing that it is possible to transplant sperm-making cells from one animal into another were reported Monday. In experiments at the University of Pennsylvania, reproductive physiologist Ralph Brinster made one mouse produce sperm that carry the genes--the biological inheritance--of another mouse. By simply transplanting the sperm-making cells--spermatogonia--from one mouse into another, he permanently changed the recipient's sperm, so it carried only the donor's genes.