Dying cells encourage neighbors to grow
... experimental creation of undead cells allows this phenomenon to be expanded and studied. The authors provide evidence that apoptotic cells that are allowed to complete the process of dying also secrete the growth-stimulating signals. The researchers conclude that apoptotic cells actively induce compensator...Biologists ID molecular block for social 'cheaters'
...molecular genetics, the researchers found that the phenomenon known as pleiotropy -- which occurs when a gene affects more than one inherited trait -- plays a crucial role in preventing "cheaters" from exploiting their neighbors within slime mold colonies that are formed by the social amoeba Dictyostelium disco...The PSA bounce Does it have clinical significance?
...diation oncologists have examined the "PSA bounce" phenomenon and determined that it is not an indicator that me...ation treatment for prostate cancer. The bounce phenomenon occurs in a third to half of men treated with radiation for prostate cancer. Urologists, radiation ...Experts present new research on hot topics in aging at GSA's annual meeting in Washington, DC
..., have provided valuable information regarding the phenomenon of aging. Important clues about aging may also result from understanding the pathogenic mechanisms involved in HGPS. This symposium will present an overview of HGPS and the latest research on the disorder, as well as cover funding opportunities. ...Genetic link to risky pregnancy
...nd activate other cell types, so perhaps a similar phenomenon is occurring during pregnancy....Study in Royal Society journals presents evidence for inherited factors in homosexuality
...s indicate that osmosis in such pores is a complex phenomenon involving both viscosity and diffusion, where the contribution of each is determined by the geometry of the pore a new finding. Such channels actually exist in cells of animals and plants and there is current interest in making membranes containing ...Phillip A. Sharp to present 2004 Ullyot Public Affairs Lecture at Chemical Heritage Foundation
...ided one of the first indications of the startling phenomenon of "discontinuous genes" in mammalian cells. The discovery that genes contain nonsense segments that are edited out by cells in the course of utilizing genetic information is important in understanding the genetic causes of cancer and other diseases....NHGRI seeks next generation of sequencing technologies
...our types of nucleotides based on differences in a phenomenon called electron tunneling. Scott D. Collins, Ph.D., University of Maine, Orono $850,000 (2 years) "High-speed Nanopore Gene Sequencing" Skilled in silicon fabrication methods, this group will try to fabricate a nanopore with tiny electrodes and bu...Researchers find protein that makes long-term memory possible
...researchers relied on observations of a laboratory phenomenon thought to mirror the changes that occur in the br...tively small burst of electric current simulates a phenomenon thought to parallel short term memory, and is referred to as early long-term potentiation, or E-LTP.......ras or trained seers, we need only assume that the phenomenon of synaesthesia is taking place." ...Large-scale forces shape local ocean life, global study shows
...ses. While this is a long-held and widely accepted phenomenon on land, it has been brought into question in the past decade as scientists have found a surprisingly varied array of ocean animals in Antarctica. This is the first global study to show that latitude affects species richness in shallow-water ocean an...Early life stress harms mental function and immune system in later years
...eral reports at this meeting demonstrate that this phenomenon is conserved across species-from the barn owl to rodents to humans-suggesting that these effects are mediated by fundamental mechanisms. The new research was presented at the 34th Society for Neuroscience annual meeting in San Diego Insight into...Farmers don't need a new superstar toxin to fight bugs
...pecially designed refuge-area protectants create a phenomenon called negative cross-resistance because the moderate-toxicity protectant kills the insects that are resistant to the primary protectant. "If we could discover and use moderately effective negative cross-resistance compounds in a refuge, it ...New Royal Society journal studies
...lows, oranges, and reds. However, evidence for the phenomenon in the wild remains controversial. A study of carotenoid-bearing plumages among more than 50 wild tanager species found that carotenoid intake measured as an amount of dietary fruit (a rich source of carotenoids) was associated with reduced plumage r...Ancient creature fossilized by the bacteria that ate it
... Babcocks longtime goal has been to understand a phenomenon called exceptional preservation, in which soft creatures such as insects and other arthropods -- which normally cannot fossilize -- are somehow preserved. Now hes re-examining other unusual fossils and finding that ancient bacteria were responsible f...New tool highlights activity of key cellular signal
...nts biology's growing application of a fluorescent phenomenon to study the molecular changes that reveal cells' ...ogether, affecting the color of light emitted -- a phenomenon called fluorescent resonance energy transfer (FRET). If the distance between the fluorescent molecul...Sex versus survival: A tradeoff at geographical range limits
...the ability to reproduce sexually, an evolutionary phenomenon similar to the loss of sight in cave-dwelling fish. "Our genetic analysis shows that northern plant populations acquire mutations that disable sex itself, a trait central to the biology of almost all higher organisms," says Queen's biologist Christop...Dinosaurs in bullet-proof vests
...ty of the bones and is one cause of the well-known phenomenon of brittle bones among the elderly. Torsten Scheyer explains, 'Ankylosauruses have these osteons, too, but in contrast to humans these are also strengthened with fibres.' Possibly these collagen fibres are the reason why this third type of armour pla.......Young and his team are now investigating the same phenomenon in pigs, whose eyes are larger and more like human eyes....