Tag: "earliest" at biology news
Sydney Brenner, Molecular Sciences Institute founder, awarded the Nobel Prize
...oped the field. Sulston and Horvitz were among the earliest
and most accomplished of these researchers. Sydney's contributions to science now span almost five decades. The work on worms, which the prize honors, is only one of his important achievements. Additional Contributions to Biology Beginning in the 1...
From moon rocks to space food: UH research spans 40 years
HOUSTON, Oct. 7, 2002 From the earliest
analysis of moon rocks and today's operation of th...H biochemist John (Juan) Oro conducted some of the earliest
experiments investigating the origins of life on earth and the composition of the cosmos, establishi...
University of Pittsburgh Cancer Institute discovers proteins linked to colon cancer
... colon cancer grows. "NMPs appear to represent the earliest
changes that occur in cells, which is why we wanted to look carefully at these proteins in both studies," explained Dr. Getzenberg. "In the first study, we looked at the specific NMPs present in cancerous colon tissue and in the second, we examined t...
Study provides direct evidence of the role of telomeres in prostate cancer development
...ce that human prostate cancer may progress, in the earliest
phase, via chromosomal instability generated by short telomeres, by revealing that telomere shortening is a defining DNA alteration characterizing early prostate cancer lesions. Telomere shortening may cause significant alterations at the chromosomal...
Evolution upset: Oxygen-making microbes came last, not first
...acteria, have long been credited as one of Earth's earliest
life forms and the source of the oxygen in the ear... where sulfur-loving bacteria gobbled them up. The earliest
geological evidence for sulfur bacteria is changes in sulfur isotopes indicating organisms are pref...
Pittsburgh researchers target genetic, environmental threats to maternal and fetal health
...g fetal and maternal genetics and the costs of our earliest
Even green pond scum can suffer from jet lag
...running in time to start capturing sunlight at the earliest
UIC scientists provide first images of HIV in living cells
... Chicago have for the first time captured the very earliest
stages of HIV infection in living cells. The researchers filmed individual HIV particles as they traveled to the nucleus of a human cell and began taking over its genetic machinery -- the first step in the destruction of the body's immune system that...
'Binary' enzyme created by TSRI scientists demonstrates Darwinian evolution at its simplest
... "sources," no fossils, that show us what the very earliest
life on earth looked like. The earliest
fossils we have found are stromatolites--large clumps of single-celled bacteria that grew in abundan...
Science's top ten: Discovery of genes' 'control switches' named top advance of 2002
...rs overturned some fundamental ideas about humans' earliest
ancestors in July, when they reported the startlin...western Africa, was a surprise. Until now, humans' earliest
ancestors had been found in east Africa. The skull's features look like a mix of chimpanzee, gorilla...
Evidence for orangutan culture
... could not only threaten further research into the earliest
origins of culture, but continue the dangerous decline in orangutan populations. In an article in the Jan. 3, 2003, Science, the scientists presented evidence for cultural transmission of 24 behaviors. These include: -- using leaves as protective ...
Finding life away from Earth will be tough task, says noted paleontologist
...e hard to find. Some scientists think a few of the earliest
fossils might still be preserved in Earth rocks bl...tonics. But learning as much as possible about the earliest
life on Earth is probably the best starting point for trying to find life somewhere else, said Roger...
Researchers discover how embryo attaches to the uterus
...he wall of the uteruswhat appears to be one of the earliest
steps needed to establish a successful pregnancy. Specifically, the researchers found that 6 days after an egg is fertilized, the embryo uses specialized molecules on its surface and molecules on the surface of the uterus to attach itself to the wall...
Early mammals used pelvic bones to trot, study finds
ATHENS, Ohio Scientists studying the earliest
mammals have been stumped for centuries about the ... State College studied modern-day relations to the earliest
mammals opossums, one of the few types of animals alive today that still has the bones in question,...
Sick Kids researchers pinpoint link between diabetes and nervous system autoimmunity
... system structures that are first destroyed in the earliest
stages of diabetes, with autoimmunity subsequently veering off to attack insulin-producing cells. Modification of the early nervous tissue attack prevented subsequent diabetes in the major animal model for the disease. "This study maps the puzzling l...
Prehistoric tusks point to earliest fossil evidence of differences between sexes
... roamed Earth before the dinosaurs may provide the earliest
evidence yet of male-female distinctions in land animals that existed millions of years ago, say U of T scientists. Robert Reisz, a biology professor at the University of Toronto at Mississauga, and his team have found convincing evidence of sexual d...
Falling prey to machines
...tromagnetism shaped modern physics. "We are at the earliest
stages of theory-making in AI and mature theories of this kind typically take decades of work," says Holland. "Sentient computers are possible, but I don't think we will have them until we have such guidance." Holland is a pioneer in the fields of ar...
Squirrels' evolutionary 'family tree' reveals major influence of climate, geology
... they're distributed, you wouldn't deduce that the earliest
squirrel was in North America," added Roth. The earliest
fossil evidence for squirrels was found in western North America and dated to about 36 million years...
Rutgers' Tanzanian fossil reshuffles the deck on early human ancestry
...t specimens out of about 50 known to represent the earliest
members of the genus Homo (H) the genus to which thehuman species belongs. In the Feb. 21 issue of the journal Science, Rutgers anthropology Professor Robert Blumenschine and his colleagues describe and discuss the specimen they found at Olduvai ...
Pennsylvania chemist wins national award for drug research
...or possible use as therapeutic agents." One of his earliest
projects was to devise a way to stabilize peptides, ultimately designing chemical bridges called lactams that locked in the molecules' spatial geometry and made them less digestible to the body's enzymes. "The peptide community conferred a rare honor...
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