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Tag: "attract" at biology news

ASU research shows connection between testosterone, dietary antioxidants and bird coloration

... to their bright colors, which acts as a signal to attract potential mates. They also act as an antioxidant in the body, which improves immune system function. “Researchers in animal behavior often study what keeps sexual signals like bright colors or elaborate songs ‘honest,’ or why all individuals cann...

Healthy coral reefs hit hard by warmer temperatures

...a's coastline. The colorful coral colonies that attract visitors to the Great Barrier Reef live atop a limestone scaffolding built from the calcium carbonate secretions of each tiny coral, or polyp. While polyps provide the framework, coral's vivid hues come from symbiotic single-celled algae that live in...

Thymus transplants gives hope to babies with fatal immune disease

...are then implanted in the baby's thigh, where they attract a blood supply and begin to act like a thymus gland. Within three to four months, mature T cells begin to appear in the bloodstream. The latest Duke analysis followed the first 54 children with DiGeorge anomaly referred to Duke for possible thymus...

Hives ferment a yeasty brew, attract beetle pest

...e's alarm signal may not only bring help, but also attract the small hive beetle. Now, an international team of researchers has found that small hive beetles can detect some alarm pheromones at levels below that detected by honeybees. The beetles associate the alarm chemicals with a good food source and hea...

Detecting poisons in nectar is an odour-ous task for honeybees

...nts would try to poison the honeybees they wish to attract is a scientific mystery. The honeybee, which accounts for the pollination of at least 1/3 of the world’s crop plants, may encounter such poisoned nectar in common crop and garden plants such as Rhododendrons and almond trees. Can honeybees learn wh...

Jefferson scientists find rabies-based vaccine could be effective against HIV

...hat such rabies?vehicles, or "vectors," would help attract a strong response from the animal’s immune system, though the rabies virus used cannot cause disease. Such vectors are based on a type of rabies vaccine strain that has been used for more than 20 years in oral vaccines against rabies in wildlife in E...

Male reindeer inflate a large air sac in the neck region to emit their hoarse rutting calls

... energy. Simultaneously, the performance serves to attract female mating partners. Males vocalize almost exclusively during the autumn rutting season whereas females are mostly silent during that period. Instead, vocal communication of females tends to mainly occur with their young, in the first months af...

Cancer-killing invention also harvests stem cells

...orked, and the King Lab discovered that they could attract a large number of cells to the wall of their selectin-coated device, and that 38% of these captured cells were stem cells. King envisioned a system by which doctors could remove stem cells from the bloodstream by flowing the cells through a device, ...

Rapid, Low-Cost DNA Testing

...ric charges, having gained or lost electrons, they attract their opposites. An anion with a negative electric charge will attract positive charges, a cation with a positive charge will attract negative charges. Single-stranded DNA...

World's largest flower evolved from family of much tinier blooms

...cently killed animal. These traits help the flower attract the carrion flies that pollinate it. "While it's surprising to find this giant plant evolved from a family typified by much smaller blossoms, rafflesia is unusual enough that it's frankly been difficult to imagine it fitting neatly into any plant f...

DNA ends: Common tool, different job

...cts elsewhere in the genome to raise a red flag to attract the attention of the repair machinery," says Lundblad, "curiously, the t-RPA complex performs the exact opposite function at chromosome ends, ensuring that these tips do not become targets for DNA repair." ...

Scientists create dual-modality microbeads to improve identification of disease biomarkers

...anoparticles allows the use of a magnetic field to attract and easily remove the beads from a liquid sample. "These nanoparticles enter the pores of the microbeads so quickly and so completely -- essentially more than 99 percent of the nanoparticles go into the pores of the beads," explained Shuming Nie, ...

Magnetic system could be key to surgery without scars

...tem uses a stack of magnets outside the abdomen to attract other magnets attached to laparoscopic instruments inside the abdomen. Surgeons can then move the outside magnets to position an internal camera at the best spot for seeing or to move a retractor or other surgical instrument. Once optimally positione...

Blocking immune cell action increases Alzheimer's-associated protein deposits

...ce CCR2 is known to bind chemokines, proteins that attract immune cells and are elevated in brains affected by Alzheimer's, the receptor could be important for the movement of microglia to the site of amyloid-beta deposits. To test that possibility, the investigators used a mouse model of Alzheimer's diseas...

Researchers link ocean organisms with increased cloud cover and potential climate change

... of the particles while helping them to chemically attract more moisture. The impact of isoprene on atmospheric particulate matter was previously thought to be important only for terrestrial plants, Nenes said. The researchers stumbled upon the phytoplankton-cloud connection quite accidentally. "While l...

Vaccination with embryonic stem cells prevents lung cancer in mice

... will depend, to a large extent, on whether we can attract significant funding. Our work is presently supported by a pilot grant from our cancer centre and a small grant from the Kentucky Lung Cancer Research Program. US federal funding agencies such as the NIH ?notorious for funding predictable research ?...

Why do insects like to eat some plants more than others?

...The finding that plant reproductive allocation can attract enemies means that sex may be even more costly than previously though. This research also has implications for weed control and protection of rare plant species. ...

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

...an 0.5 percent of the Neanderthal genome that will attract much attention. Many of the biological differences between modern humans and Neanderthals will be encoded at specific sites, which is why the researchers were able to analyze enough data without having to sequence the entire Neanderthal genome. ...

Nano-devices hold promise for early-stage cancer detection

...f Engineering, McMaster University "The lab will attract exceptional researchers and students, and foster i...d exciting learning environments for training, and attract new industrial partnerships." Plans call for the lab to occupy approximately 9,600 square feet an...

Cardiologist's 'living chip' changes science of disease monitoring

...hnology. Those are the kind of start-ups that will attract employees from elsewhere to our community."...

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