Prostate Cancer's Aggressiveness May Be Predicted Early By The Ratio Of Free To Total PSA
...ons including impotence and incontinence. Watchful waiting means living with cancer and possibly missing an opportunity for cure. "This preliminary study suggests that the free to total PSA ratio may be valuable to the physician at the time of cancer diagnosis to help in the choice of management since the m...Female Fireflies Lure Males For Defense Chemical
...c delay-and-flash, he heads for the source. What's waiting in the dark for the male Photinus firefly isn't always a female Photinus, however. Female Photuris fireflies can imitate the Photinus delay-and-flash signal, and they use it to their chemical advantage. Photuris fireflies without lucibufagins are ea...E. Coli Genome Reported: Milestone Of Modern Biology Emerges From Wisconsin Lab
...a pathogenic past or, alternatively, is a pathogen waiting to happen. The E. coli strain used in the Wisconsin study does not cause disease,but related strains are toxic and have been implicated in an increasing number of human food poisonings from products ranging from ground beef to unpasteurized a...Insects Provide Clues About Bodies Underwater
...ll's fascination - the class has 85 students and a waiting list....Good Ergonomics Is Good Economics
...ductivity increases can be used to reduce customer waiting time, thereby also increasing customer satisfaction (Andrew Imada, personal communication). This modification effort is but one part of a macroergonomics intervention project to improve productivity. Imada anticipates that ongoing work to improve th...Biologist Experiments With His Own Front Yard
...sts, caught up in thepossibilities for exploration waiting right outside the front door. And he pulls off this bit of enchantment with insects -- "bugs" to most of us. "The insects are the stars as far as I'm concerned," said Alcock. "Their lives are so rich and yetthey are so utterly ignored by ...When To Reproduce? It's All In The Timing
...and herein Maine, we've found that the adults were waiting to release their gametesunder conditions that were less turbulent. When the gametes aren't diluted,fertilization success is high. I think that's going to stand in most cases." Carbon is the key In a subsequent series of experiments, Brawl..."A Thousand (And More) Points Of Light" Yield New View Into Cells
... Singer, the molecules "reallypile up asif they're waiting their turn to go through a toll booth." In yet another discovery, the scientists have shown that completed mRNAtranscripts leave the gene one at a time, rather than in multiple units. Inaddition, theresearchers infer that the transcript exits th...When To Pick A Peck Of Pungent Peppers? When The Peck's At Its Peak
...ciety, the world's largestscientific society. And waiting too long may be as bad as picking them toosoon, the researcher says, since the peak of flavor is short-lived and preciselytimed. For Piquin peppers, the critical growing time to insure peak flavor is40 days, and for De árbol and Habañero p...Computers, GIS Help Prevent Ground Water Contamination
...won't reach it. However, other areas are accidents waiting to happen. Before Engel's research, state agencies had trouble pinpointing potential problem areas. Engel started with an existing computer model that rated pesticide contamination risks in Indiana, county by county. The model was good, but n...Scientists Use Gene Therapy To Correct Deafness In Mice
...rmal cloned DNAinto fertilized mouse eggs and then waiting to see which DNA clone produced ahearing mouse, U-M scientists were able to focus their search for the mutantgene in a small area and find it faster than would have been possible withouttransgenic technology. The U-M study represents the first perm...University Of Pittsburgh Scientist Discovers How A Novel Vitamin K Stops Cancer Cell Growth
...some individuals with this disease from transplant waiting lists,if it is as effective in humans as it is experimentally," said Dr. Carr. Dr. Carr and his colleagues recently reported that Cpd 5 can inhibitliver regeneration in rats that had part of their livers removed. The animalssuffered no toxic...Circulatory Device -- A Bridge To Recovery For Heart Failure?
...ntation can be lifesaving. Due to relatively long waiting timesfor heart transplantation, some people awaiting a transplant can be kept aliveonly with a mechanical left ventricular assist device (LVAD) which takes overmost of the pumping for the failing heart. The researchers found that LVAD support reduced...Researchers Discover Way To Grow New Kidneys In Rats
...,000 kidney patients currently are on the national waiting list ofthe United Network for Organ Sharing. In 1997, 2,000 people died waiting for akidney. Hammerman's results are published in the July issue of KidneyInternational. His...Research Shows How Shrimps Escape Predators
...blethem to sense the chemical odour of brown trout waiting downstream to ambushthem. Jonas Dahl, a limnologist at Lund University in Sweden, placed a set ofmesh enclosures in a stream north of Lund. Half the enclosures contained browntrout and half were empty. Dahl then counted amphipod shrimps, Gam...Genetically-Altered Crops Can Produce Tough, Hard-To-Kill Weeds
...ke to paint this as an emergency, or as a disaster waiting tohappen. I just think it's important to understand what we're doing when wecreate transgenic crops, and delay the possible negative consequences, if notprevent them in the first place," said Snow. One solution might be for scientists to ins...Scientists Discover Two Modes Of Aging In Fruit Flies
... of the physiological shifts thatoccur between the waiting and reproductive modes in medflies may yield a betterunderstanding of the fundamental processes that determine longevity.Specifically, it seems that reproduction could in fact be a pacemaker for theaging process. Co-authors are: Pablo Liedo, Hans-Ge...Two Modes Of Aging Discovered In Fruit Flies
... of the physiological shifts thatoccur between the waiting and reproductive modes in medflies may yield a betterunderstanding of the fundamental processes that determine longevity. UC Davis statistics professors Hans-Georg Mueller and Jane-Ling Wangcollaborated with Carey on the project, funded by the Nation......of information that are sitting on the shelf, just waiting to be discovered." "Many talented biologists and computer specialists worked together to assemble the Gene Map," noted Dr. David J. Lipman, NCBI director, "and putting it on the web extends the collaboration to the entire worldwide biomedical resear...