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Tag: "driving" at biology news

Gov't Creates Gene Database of Normal Human Tissues

... in the cells of previously incurable cancers. The driving force of research in our section is to translate genomic information to the clinic. The goal is to save lives and improve the quality of life for children with high-risk cancer." Until now, no publicly available, normal human organ database has used...

Basis for DNA ejection from single phage particles

...st cells, researchers have gained insight into the driving force behind this poorly understood injection proc... may represent 50 times that of the bacterium. The driving force for DNA transport is still poorly defined. It was hypothesized that the internal pressure buil...

Disease progression model of pancreatic cancer developed by Penn researchers

...ncluding pancreatic cancer, and is thought to be a driving force in the transition from local tumor growth to metastases of cancers. According to Hingorani, "This model may prove useful to understanding human pancreatic and other epithelial cancers because the key event of genomic instability that has been v...

Disease diagnosis, biodefense among UH chemical research projects

... better understanding of the chemical and physical driving forces of carbohydrate-protein interactions that are important in biological systems. # Roman S. Czernuszewicz, associate professor of chemistry, will present research on "Resonance Raman spectroscopy of nitrophorins." Nitrophorins are a family of h...

New drug shows promise as powerful anticancer agent

...ials. Plk1 is a molecule that plays a key role in driving cell division. High levels of Plk1 have been observed in many human tumors, and studies using various laboratory techniques have shown that inhibition of Plk1activity leads to cell death. "Because all signaling pathways that have gone awry in a cance...

Cricket's finicky mating behavior boosts biodiversity

...ebrate. Finicky mating behavior appears to be the driving force behind the speedy speciation of the Laupala cricket, the scientists wrote in the Jan. 27 issue of Nature magazine. Females in the Laupala genus detect tiny differences in the pulse rates of male courtship songs, which differ from one Laupala s...

Sexual cooperation: Mating increases longevity in ant queens

The phenomenon of sexual conflict is a powerful driving force in the evolution of reproductive biology for many animal species. Males often try to manipulate their female mates during copulation--for example, by traumatic inseminations (as in the case of bed bugs) or by the transfer of toxic seminal fluid...

Family trees of ancient bacteria reveal evolutionary moves

.... Louis has proposed that evolution is the primary driving force in the early Earth's development rather than physical processes, such as plate tectonics. Carrine Blank, Ph.D., Washington University assistant professor of geomicrobiology in the Department of Earth & Planetary Sciences in Arts & Scie...

Falling ants glide back to trunk to avoid dangers of forest floor

...d. "That's what I think is the major evolutionary driving mechanism behind the behavior," he said. "In Amazon forests, you really don't want to fall out of your tree and in the water, because then you're definitely dead." After capturing some quick video snippets with his digital still camera, Yanoviak con...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...ngered Aleutian Canada goose, which the foxes were driving toward extinction, Byrd had noticed the differences between islands with and without foxes and speculated that nutrients might play a role. "He had these interesting ideas about foxes and birds and nutrient chains, and I thought we should do some st...

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