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Tag: "paired" at biology news

Smoking rate has plummeted in New York City

... Dr. Thomas R. Frieden -- “especially when they’re paired with a tobacco tax and smoke-free air legislation. With nearly a quarter of a million fewer smokers, New York City is leading the way on tobacco control. There aren’t many programs that can prevent 80,000 premature deaths this quickly.” Ads from...

Eavesdropping comes naturally to young song sparrows

...f the adult tutors were used. Each young bird was paired up with an adult in a large chamber and their voca... chamber. The next day, the second young bird was paired with a second tutor and the first young sparrow, now in a separate chamber by himself, overhead thei...

Moths mimic sounds to survive

...ks of their own. They broadcast the clicks from a paired set of structures called “tymbals.” Many species of tiger moth use the tymbals to make specific sounds that warn the bat of their bad taste. Other species make sounds that closely mimic those high-frequency sounds. “We found that the bats do not...

Resistant HIV quickly hides in infants' cells

...dwide as first-line therapy. Such testing must be paired with further studies on available and new therapies. As Persaud remarked, "It is important to fully understand the extent to which the persistent drug-resistant virus affects whether those drugs can be reused within the child’s lifetime.?This is a c...

Bones in motion: Brown scientists to create new 3-D X-ray system

... team. The grant from the W.M. Keck Foundation, paired with matching funds from Brown, will pay for the X-ray machines, treadmills and other equipment for a new CTX facility on campus. But creating the imaging technology will be a mainly computational challenge, so funding will also support substantial s...

Mutation improves memory, may lead to memory-enhancing pill

...owed by a mild foot shock or are exposed to a tone paired with a foot shock. Their memory for the earlier bad experience is determined based on how much they freeze in response to the "scary" place or sound 24 hr later. Importantly, the researchers also showed that treatment of animals with a small molec...

New sensor detects gaseous chemical weapon surrogates in 45 seconds

...cord the resulting sound wave. PNNL researchers paired multiple QCLs with the tuning forks, allowing simultaneous examination of a single sample at many infrared wavelengths. Nearly every molecule has unique optical properties at infrared wavelengths between three and 12 micrometers, and QCLs provide acc...

Ultrasound upgrade produces images that work like 3-D movies

... some people can "defocus" their eyes and fuse the paired images without the aid of any special viewing devi...sound imaging devices. (Watch the video, including paired images of both the cage and model fetus, at http://youtube.com/watch?v=4VSRlH01mzg . See if you can...

Fish can determine their social rank by observation alone, study finds

...edge to make logical decisions about the same fish paired in new relationships? To find out, eight different bystanders were tested in the familiar square tank and in a new setting--a rectangular aquarium with three adjacent compartments. In each test, a bystander was placed in the middle compartment...

Does a peptide affect the heart's response to social isolation?

...etic regulation of the heart; and for the paired prairie voles (control group) oxytocin did not alter the cardiac responses. Conclusions These findings suggest that oxytocin can prevent damaging cardiac changes in adult female prairie voles exposed to social isolation. While there are ...

Researchers discover mechanism that determines when detailed memories are retained

...rious frequencies. During some of the trials, they paired one tone with stimulation of a section of the rats' brains known as the nucleus basalis, which relays commands to the auditory cortex by secreting acetylcholine. During some experiments, the stimulation of the nucleus basalis was weak, whereas in oth...

New engineered drug may offer prolonged arthritis relief

...els of the protein, suggesting that a protein drug paired to the ELP might also have the benefit of fewer si...ed. Based on the initial investigation, the team paired the ELP with the IL1RA drug in a second study, to test whether the fusion protein would retain the a...

Brain enzyme treatment relieves memory lapse in Alzheimer's mice

...xt (a fear-conditioning box) and exposed to a tone paired with a mild foot shock. Their ability to learn fear was tested 24 hr later by measuring "freezing" behavior in response to the box or the auditory cue. Contextual versus cued responses represent different forms of learning that depend on different pa...

UF scientists discover evolutionary origin of fins, limbs

...ce fins originated, about 100 million years before paired fins evolved and about 200 million years before paired fins evolved into limbs, according to University of Florida genetics researchers. The findings, publ...

Flick of a protein switches immune response

...critical to immune tolerance. But the same NFAT, paired with a second family of proteins known as AP-1, instead stimulates immune response. Chen said the finding offers the first strong evidence in favor of the 15-year-old "combinatorial control" theory of gene expression. According to the theory, the...

Science finds new fix for UV-damaged skin in arthritis treatment

...spots and uneven melanin distribution. Researchers paired n-acetyl glucosamine with niacinamide because they knew that niacinamide had similar effects on slowing down pigment production and hypothesized that the two might work better together. The panel reviewed data from three studies involving the n-acet...

UCLA scientists uncover mechanism of response to targeted therapy

...s from growing, it doesn't kill them." It could be paired with conventional chemotherapy or with another targeted therapy, such as an angiogenesis inhibitor, which cuts off the independent blood supply that cancers need to grow and flourish. The CCI-779 would stop the growth of the cancer, and the chemother...

Study in Science holds promise for a new approach to drug therapy

...self breaks up into an alpha subunit and a tightly paired gamma-beta subunit. G proteins subunits, in effect, pass on the biological message inside the cell sent by the ligand that activates a GPCR on the outside. The free G protein gamma-beta subunit can, for example, "turn on" key target enzymes like phos...

When mice choose mates, experience counts

...ale mice no longer preferentially chose male odors paired with other female odors, and they did not avoid the odors of infected males, though other tests showed that their olfactory system was perfectly intact. "Our research shows that the oxytocin gene is involved in the processing and integration of inad...

Costly breeding programs for endangered species pay off

...isters were never allowed to mate and were instead paired only with offspring from other breeding pairs. In the alternate breeding scheme, the females were allowed to contribute a disproportionate share of offspring to subsequent generations, based on their fitness scores. The release into the wild was sim...

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