Tag: "before" at biology news
Where Fossils Fear To Tread: Scientists Follow Genes To An Ancient Ancestor
Some 600 or 700 million years ago, before
animal life made a sudden evolutionary shift and diverged into nearly all the major animal divisions we know from fossils, primitive animals were inventing the genes that would make it all possible. No one knows what it looked like. There is...
Scientists Unlock Mystery Behind Proteins That Keep Tuberculosis Bacteria Alive; Finding Leads To Research Into New Drug Treatments
...act that many TB sufferers stop taking antibiotics before
the bacteria iseliminated. "This is a breakthrough because it offers a novel drug target fortuberculosis," Belisle said. "Based on this finding, we can create new drugsthat inhibit the enzymatic reactions responsible for keeping the cell wall...
Study: Device Prevents Epileptic Seizures, Doesn't Damage Hearts
... was implanted, and some who hadthe same number as before
reported their seizures were shorter or less sever...ital and carbamazepine, said Vaughn, who testified before
the FDA panelthat recommended approving the stimulator. Others involved in the research at U...
Research Team Discovers Key Gene For Telomerase Enzyme In Humans
...ty in cells, it may be possible to diagnose cancer before
palpabletumors have formed. But Nakamura urges caution in heralding telomerase as the newestcure for cancer. "Nothing has been shown to work yet," he said....
More To Drought Than Meets The Eye
... treerings were also compared to rings immediately before
and after the drought. Among the four sites studied, the dry ridge sites were most impacted bydroughts and had the largest decreases in radial growth. Black cherry, whichappeared in all four locations, had below average growth on the ridge a...
Oak Regeneration In Some Ohio Forests Is Failing, Researchers Find
...intain this high-light condition for several years before
we begin to see anyeffect on oak regeneration." The USFS project, which began in 1995, is a long-term effort and isfunded by the United States Department of Agriculture....
A New Biochemical Link Established Between Stress, Sex And Dominance
...warthmore, worked in the Fernald lab for two years before
starting graduate studies at the University of Cal...ess by capturing the fish and taking blood samples before
returning them to the tank. First, they determined that if a sample was taken within four minutes af...
Common Childhood Virus Poses Threat To Adults, Research Shows
...ped a worse fever,shortness of breath, or wheezing before
entering the hospital. Some hadunderlying medical ...early every child inthe United States acquires RSV before
the age of two, as their immune systemsare developing. Adults most vulnerable to infection are those...
Experts: Public Will Accept Irradiation In Wake Of Meat Recall
...per cooking, but irradiation destroys the organism before
it reaches the consumer." Richard Linton, Purdue Extension specialist in food safety, says, "Cooking and irradiation are perhaps the only existing ways today to get rid of microorganisms on food." An instance where irradiation would've been pa...
One Chimp Can Perceive States Of Awareness In Others
...same fear responses, turned and left the cage area before
getting closeto the hidden predator. "Based on what we believe about the emergence of these skills inhumans," Boysen said, "this suggests that Darrell, in a sense,put himself in Kermit's place. I think Darrell was aware that Kermit couldn'thave...
Researchers To Investigate Years Before Menopause
...te researchers hope to shed light on the years before
women reach menopause and investigate how their ...omen experience irregularity for only a short time before
they stop menstruating forever," says Wood. "Others experience irregularity and missed perio...
Early Menarche Puts Young Girls In Peril
...ose their virginity at much earlier ages than ever before
and try to cope with a consumer and media-driven c... that girls today are likely to be sexually active before
the age at which their great-great grandmothers had even begun to menstruate. She compares the Vict...
MGH-Led Team Finds Gene For Crippling Neurologic Disorder
... the body. Early-onset dystonia, usually appearing before
the age of 11, is the most common and severe hereditary form of the disorder, affecting about 50,000 people in North America. Symptoms usually begin in the legs or arms and spread to the rest of the body, causing it to twist into unnatural postures;...
Discovery Of Genetic Pathways May Provide New Ways To Combat Candida Infections
..." says Dr. Fink. But more work needed to be done before
scientists could think about reaping the benefits of this remarkable discovery. The key question was whether preventing filamentation in Candida could render the fungus non-infectious. Scientists began to answer this question using macrophages in pe...
Study Sheds Light On Behavior Of Middle-Age 'Undertaker' Bees
...r than other midde-aged bees,moving on to foraging before
food storers and hive builders. Middle agelasts a...arrying them out of the hive for 50 to 100 meters before
dropping them. The researchers also monitored how swiftly undertakers worked. "We didn't find any ...
Planned Burning In Forests A Boon To Several Species Of Birds In Illinois
...as flourished in Illinois for at least 8,000 years before
modernagriculture and development began encroaching. Landscape-management issueshave become hot topics in the Midwest and in the West. Prescribed burning,Brawn said, will result in major changes within 10 years. "We haveto develop an understanding...
Chemists Develop High-Throughput Method To Synthesize And Screen Novel Antibiotics
...ugh Day knows thesecompounds have a long way to go before
any of them could reachhuman testing. "We can make beta lactams that take out thetuberculosis bacteria without any trouble, but there's a big jumpbetween the test tube and elsewhere," Day readily admits. The focus of Wang's presentation will be on th...
Hunt For Early Heart Attack Genes Begins
...y will recruit: men who had a first heart attack before
age 45 and women, before
age55. men who had a first heart attack before
age 55 and have a livingsibling who has had a first h...
Largest Tyrannosaur Fossil Unearthed In Montana
...nd receive independentcorroboration of the fossils before
jointly announcing the discovery, but theevents unfolding on the site have forced their hand. Rigby had temporarilyclosed the site in August and returned to Notre Dame to begin the fall semester. He is likely to visit the site soon to assess the da...
Pharmaceuticals Manufactured In Insect Larvae
...umanity. Recombinant baculoviruses have been used before
to develop a panorama of pharmaceutical proteins b...d," said Patrick R. Hughes, BTI researcher. "Right before
the insect dies, we harvest the protein, and the protein can be refined into pharmaceuticals." The ...
1 2 3 4 5 6 7 8 9 10