Tag: "prompting" at biology news

Code-breaking insects steal plants' defensive signals, enabling counterattack

...ts indeed increased parasitism of beet army worms, prompting the idea that such a practice could reduce crop losses. "Pouring on jasmonic acid might not be ideal under some circumstances, if it turns out that jasmonic acid also cranks up insect detoxification systems," Berenbaum said....

Scientists identify gene that controls sex drive in male flies

... is required for normal courtship behavior is also prompting some researchers to consider that perhaps takeout plays a broader biological role balancing the appetite for food and sex....

Got milk? Scientists discover key lactation gene

...ng mammary epithelium beginning in late pregnancy prompting researchers to suspect an additional, and perhaps different, role for XOR in the lactating mammary gland. To identify the function of XOR in the lactating mammary gland, Dr. Capecchi and colleagues generated mice lacking either one (heterozygous) or ...

'Small RNA' research cited as breakthrough of the year

... calling them "electrifying discoveries, which are prompting biologists to overhaul their vision of the cell and its evolution." These tiny bits of genetic material were virtually unknown a decade ago but are now on the cutting edge of cell biology, and a better understanding of their function may form the bas...

Stream erosion may contribute to decline of American eels

...s have been declining in both Canada and the U.S., prompting concern over the status of this species. Although eels have historically occupied all of the Atlantic watersheds, little is known about their seasonal behavior or distribution patterns in headwater mountain streams. Barriers to headwater habitats hav...

Tiny RNAs-'biological equivalent of dark matter'-wins prestigious AAAS Newcomb Cleveland Prize

... Worms lacking those RNAs didn't develop properly, prompting further investigation. At the Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Nelson C. Lau, Lee P. Lim, Earl G. Weinstein and David P. Bartel discovered 55 miRNAs in C. elegans, some overlapping those found by ...

Worlds leading journal editors urge self-governance and responsibility ...

...fications were suddenly applied to basic research, prompting a report on dual-use technologies, he wrote. Novelist C.P. Snows exploration of the proverbial Two Cultures problem, which he applied to the cultural gulf between the sciences and the humanities, has now emerged in a different form, Kennedy said, as ...

Sex and gender scientists explore a revolution in evolution

...iptail lizards, and females will mount each other, prompting hormonal changes that result in cell division - a true ''virgin birth.'' A single individual also may switch from male to female or vice versa and back again - that is, may switch from producing sperm to producing eggs - due to a change in hormones t...

Cells use patch to heal tears, avoid destruction and disease

...mised, calcium ions from outside the cell rush in, prompting membranes inside the cell to fuse and patch the ho...ion within, move inside the cell through the tear, prompting little vesicles membranes that subdivide the cell to fuse, forming a large internal membrane that ...

Antibody therapy can increase the effectiveness of cancer vaccine, early studys

... alerts the immune system to the tumors' presence, prompting an anti-tumor attack.) Of the four melanoma patients who had received a different type of vaccine based on melanoma antigens, none experienced a similar benefit, researchers found. While none of the study participants had serious reactions to the a...

Scientists discover unique source of stem cells

... lived, grow rapidly in culture, and, with careful prompting in the laboratory, have the potential to induce the formation of specialized dentin, bone, and neuronal cells. If followup studies extend these initial findings, the scientists speculate they may have identified an important and easily accessible s...

Premature birth linked to lack of nutrition before pregnancy: study

...ad accelerated maturation of their adrenal glands, prompting their premature delivery by about one week, on average. In some cases, the ewes delivered as much as 15 to 20 days early. "Even after adequate nutrition is reintroduced, months later there's been an effect on the fetus," says Bloomfield, who conducte...

GenoMyc binding

...dly widespread genomic binding by the Myc protein prompting scientists to consider that this highly studied human oncogene may still have a few secrets to reveal. Independent research groups led by Drs. Robert Eisenman (Fred Hutchinson Cancer Center) and Bruno Amati (European Institute of Oncology) report on ...

Straight talk: Adult and embryonic stem cells and the future of research

... more grown-up humans don't pose the same dilemma, prompting a repeated question, says Civin. "People always ask if the new finding -- whatever it is -- means that scientific and medical goals could be accomplished by researching only 'adult' stem cells to avoid the ethical debate," he says. "The bottom line...

New Colorado U. study shows increase in fungal metabolism under the snow

...on fluctuation on Earth," he said. The results are prompting a reevaluation by scientists of whether snow-covered regions can act as "sinks," or storage areas, for CO2, he said. A paper on the subject by Schmidt, Christopher Schadt and Andrew Martin from CU-Boulder and David Lipson from San Diego State Univers...

Moving the target for osteoporosis treatment

... that specifically activate receptors in the bone, prompting bone production. But first the researchers are developing a mouse that lacks this receptor; Dr. Isales believes the mouse will have very thin bones and serve as proof of the new principal. Current osteoporosis treatments, such as Fosamax, kill off ...

Snowy plover 'nursery' success earns Resource Stewardship Award

...k was seen near a recent dune restoration project, prompting the UC Coal Oil Point Reserve director, Dr. Cristina Sandoval, to install a rope fence that denoted the boundaries of the core plover habitat, thereby buffering the chick and its father from disturbance. After the chick fledged, she left the fence in...

Thoughts translate to actions

...x motor behavior in humans are far more difficult, prompting researchers to explore alternatives to spinal cord rehabilitation. One promising approach involves circumventing neuronal damage by establishing connections between healthy areas of the brain and virtual devices, called brainmachine interfaces (BMI...

JAK2 enzyme helps protect brain cells, wreaks havoc on blood vessels

...AK2 attacks blood vessels from the inside and out, prompting suicide of the endothelial cells that comprise the...are an easy target for JAK2's detrimental effects, prompting glomeruli mesangial cells to grow and proliferate, thereby clogging the kidneys' intricate filtering...

Predicting progression of common cancers

...or "microenvironment" and that of a healing wound, prompting Harvard pathologist Harold Dvorak to describe cancer as a wound that does not heal. With no systematic method to measure the "wound-like" features in cancer, however, scientists had no way to evaluate the risk that a wound-healing genetic program may...

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