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Tag: "tracking" at biology news

Massive herds of animals found to still exist in Southern Sudan

...lleagues believe that follow-up aerial surveys and tracking will reveal that the team missed a significant portion of kob due to the animals’ movements during the surveys. As a result, they believe that there could actually be well over a million white-eared kob in Southern Sudan. Combined with the tiang and ...

Eavesdropping comes naturally to young song sparrows

...l line of research, Beecher and his colleagues are tracking song sparrows by radio in the field. Preliminary analysis of the tracking data suggests that young birds don’t have many direct interactions with adults, and so are likely to...

New research shows sharks use their noses and bodies to locate smells

...emonstrated that the lateral line also aids in the tracking of odor plumes. "Odor plumes are complex, dynami...a process referred to as "eddy chemotaxis," or the tracking of odor and turbulence simultaneously. "We might see odor and turbulent eddies in the oily wake ...

Newly identified mechanism for silencing genes points to possible anti-cancer strategies

...r way to inhibit gene translation into protein. By tracking the associations between molecules involved in generating microRNAs and other molecules in the cell, we uncovered an entirely new pathway, one that led us to a mechanism that blocks the cellular machinery that produces protein from messenger RNA." ...

Flies don't buzz about aimlessly!

... any real purpose? Armed with a computer video tracking system and an array of mathematical techniques the two researchers have revealed how the flight patterns of starved fruit flies constitute an optimal scale-free searching strategy ?like the fractal patterns of a snowflake, a fly flight path appears s...

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

...pability of CT scanners and the real-time movement tracking of cinefluoroscopy. CTX technology is expected to deliver images with exceptional precision and detail. Researchers will be able to track 3-D skeletal movements with 0.1 millimeter accuracy and see the equivalent of 1,000 CT images per second. The...

MIT model helps researchers 'see' brain development

...(MR) imaging, they have created a set of tools for tracking and measuring these folds over time. Their resulting model of cortical development may serve as a biomarker, or biological indicator, for early diagnosis of neurological disorders such as autism. The researchers describe their model and analysis i...

Tracking sperm whales and jumbo squid

...ico’s Pacific coast—the first time that electronic tracking devices have been applied simultaneously to deep-diving predators and prey in the same waters. The research team included principal investigator William Gilly, professor of biological sciences at Stanford University, and lead author Randall Davis, p...

Synthetic peptide targets latent papilloma virus infections

...om successfully tethering to the chromosomes. By tracking the plasmid DNA in dividing cultured cells, the researchers showed that the synthetic peptide did indeed prevent HPV from following the chromosomes into daughter cells. The plasmids were left behind. Because they built the peptide to enter cells ea...

Research finds music training 'tunes' human auditory system

... our musically trained subjects were far better at tracking the three different tones than the non-musicians," says Wong, director of Northwestern’s Speech Research Laboratory and assistant professor of communication sciences and disorders. The research by co-authors Wong, Kraus, Erika Skoe, Nicole Russo ...

Infection detectives use disease 'fingerprints' to track common infections in children

...searchers have looked for clues to an infection by tracking down the virus or bacteria causing it. But that doesn’t always work because the bacteria or virus may not be present in the blood or other easily accessible area. Researchers at UT Southwestern, Children’s Medical Center Dallas and Baylor Institut...

Bats prey on nocturnally migrating songbirds

...lied because this recently developed method allows tracking species' main dietary specializations and trophic level position along food chains. The researchers concentrated on carbon and nitrogen isotopes, which are among the best dietary tracers. They analysed their concentrations in bats' blood throughout t...

DNA analysis reveals rapid population shift among Pleistocene cave bears

...quence (mitochondrial DNA is especially useful for tracking population changes). The findings indicated that while four sequence types (known as haplotypes) corresponded to bears 28,000 to 38,000 years old, a fifth DNA haplotype was found only in bears that were 28,000 years old or younger. These data suggest...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

... universal tools, novel algorithmic approaches and tracking mechanisms for reproducibility at a global level. Having Asian researchers involved in the TATRC-funded project lends an added dimension of urgency and depth to the U.S. research program. "Avian flu is very important to sites worldwide, but espec...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

...technology behind the successful SENTINEL bushfire tracking system. While extreme coastal events have been captured by remote sensing before, this is the first time they can be seen and analysed straight after the event as there are now more satellites imaging the Earth and CSIRO has invested in fast info...

Gene key to taste bud development identified

...leagues use this fluorescence marker as a tool for tracking the activity of SOX2 in the esophagus, among other sites. As they worked with the mice, they noticed that specific areas on the tongue and in the back of the mouth lit up, in addition to areas in the esophagus. Further studies, Hogan said, confirmed ...

Living view in animals shows how cells decide to make proteins

... silencers or helper proteins were involved. By tracking the green glow, the team found that cells in most tissues made the same decision to silence exon IIIb, but the cells used a variety of silencers and helper proteins to accomplish this task, said Vivian I. Bonano, a graduate student in the University ...

Bones at the nanoscale

...he high brilliance of the X-ray source enabled the tracking of bone deformation in real time. Researchers could look at two length scales: on one side they observed the 100 nanometers sized fibres, and on the other, the crystallites embedded inside the fibre, which are not bigger than 2 to 4 nanometers. T...

New clues to how sex evolves

...ally to the chromosomes they help to pair. Further tracking showed that during meiosis the HIM-8 and ZIM proteins on each chromosome latch onto the cell's nuclear envelope. This activity is reminiscent of the way chromosomes attach to the nuclear envelope during meiosis in other organisms. "In most eukary...

Fruit fly study identifies gene mutation that regulates sensitivity to alcohol

... their behavior and motion patterns with sensitive tracking instruments. They isolated the flies that were less sensitive to alcohol's sedative effects. By breeding subsequent populations of mutant flies, the scientists identified the particular genetic mutation. The researchers further showed that the wh...

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