Tag: "colors" at biology news

Giant pandas see in color

...that both pandas were able to discriminate between colors and various shades of gray. The research is publis...ether giant pandas can tell the difference between colors and shades of gray. In separate tests, the two pandas (Lun Lun the female and Yang Yang the male) we...

HYPER-CEST MRI breaks new ground in molecular imaging

...ER-CEST is also like quantum dots, where different colors of dots can be used to simultaneously report different analytes. However, unlike quantum dots, our xenon agents can be detected deep within the body." The Berkeley HYPER-CEST technique not only provides a bright image with high contrast, but also s...

Blue eyes -- A clue to paternity

...f 443 young adults of both sexes and different eye colors were asked to report the eye color of their romantic partners. Blue-eyed men were the group with the largest proportion of partners of the same eye color. According to Bruno Laeng and colleagues, "It is remarkable that blue-eyed men showed such a ...

Oldest complex organic molecules found in ancient fossils

...he geologists weren't surprised that some of those colors turned up in the 350-million-year-old crinoids, Ausich said. "People have suspected for a long time that organic molecules could be found inside fossils," he added. "This is just the first time that scientists have succeeded in finding them." Tho...

Memories: It's all in the packaging, scientists say

...nderwent an fMRI scan. The words were in different colors and would appear in one of four quadrants on a screen. The subjects had to decide whether the words represented an animate or inanimate object. Later, the participants were presented the words again, interspersed with words they had not seen before, ...

Different coat color may not mean different species for lemurs

...urs they tested had three extremely different coat colors and lived in different types of forest locations i... that lemurs with each of the three different coat colors could be found in all three geographical locations in similar proportions. They note that lemurs are...

Butterfly wing scales provide template for complex photonic structures

...ribution as their parent scales." Butterfly wing colors are produced by a combination of pigments and reflection from photonic structures. "If you examine the wing scale, you see all of the intricate micron-scale and nanometer-scale features that determine the optical properties," Wang noted. "From a ph...

The price of vanity: Mating with showy males may reduce offspring's ability to fight off pathogens

...ith males who possess showy traits such as bright colors or long tails and fins results in higher testosterone levels in males over many generations. Because male and female testosterone levels are correlated, female choice also results in an increase in female testosterone levels. Testosterone is an i...

The Evolution of Altruism

...rs." Although rare in animals, reciprocal altruism colors much of human emotion and social behavior. Over the course of our evolutionary history we humans have developed a great variety of social contracts ranging from food-sharing among hunter-gatherers to observing the rules of the road in contemporary so...

DNA gets new twist: Carnegie Mellon scientists develop unique 'DNA nanotags'

... applications, Armitage says, because the multiple colors can be seen simultaneously, requiring only one experiment using one laser and one fluorescence-imaging machine. "For example, two different populations of cells, one healthy and the other cancerous, could be distinguished based on labeling them wit...

Human preference for other species could determine whether they survive

...ppear to be the ones that display markings of warm colors such as red, orange or intense yellow, said David ...most popular are the ones that display the warmest colors in the upper body, the neck and head. He likened the effect to that of a man in a tuxedo pinning on ...

Authors, illustrator win AAAS/Subaru SB&F Prize for Excellence in Science Books

...around in safe little circles, not off the cliff), colors (to camouflage themselves), and textures (amphibian eggs are "gooey", which keeps them from drying out). The author excellently captures the incredible variety of eggs while celebratingtheir form and function. Middle Grades Nonfiction Science Book...

Genetic studies endow mice with new color vision

... and its insertion allowed the mice to distinguish colors as never before. In a study published in the March... red- and orange-colored fruits. Reciprocally, the colors of ripened fruits may have coevolved with primate trichromacy, since animals that could recognize an...

LED array signals successful binding of drug-delivery molecules to DNA

...lan next to build an array that will use different colors to signal different DNA interactions. That capability is important in terms of what color of light you want to use to activate the molecules to bind to or cleave the DNA, Brewer said. The research poster, Validation of an LED array for use in DNA p...

Plastic with changeable conductivity developed by chemical engineer

...he noted that the ability of the plastic to change colors depending on whether it was conductive or not could be especially useful. Its general versatility could lead to a variety of new consumer products in upcoming years, she said. Loo has begun collaborating with Research Professor Adam Heller at th...

Structural basis for photoswitching in fluorescent proteins brought into focus

...lated in jellyfish and since found in a variety of colors from coral reef organisms revolutionized molecular biology, allowing scientists to use them as markers for genetic expression, to locate molecules and observe activity within cells. The recent discovery of photoswitchable fluorescent proteins whi...

NASA predicts nongreen plants on other planets

...ough different atmospheres, researchers identified colors that would be most favorable for photosynthesis on... planets. This new research narrows the range of colors that scientists would expect to see when photosynthesis is occurring on extrasolar planets. Each pla...

Quantum secrets of photosynthesis revealed

...ng at broader bandwidths of energy using different colors of light pulses to map out everything that is going on, not just energy transfer. Ultimately, the idea is to gain a much better understanding how Nature not only transfers energy from one molecular system to another, but is also able to convert it in...

Researchers create interactive map with Google technology to track avian flu spread

...tematic Biology. Like the legend of a roadmap, colors and symbols on the supermap indicate which types of hosts carry the virus or the distribution of genotypes of interest, said Hill. "This allows us to test hypotheses on the geographic distribution of strains that contain what laboratory studies have...

'Supermap' of avian flu yields new info on source/spread

... to project the tree onto the globe and then chose colors and symbols to indicate different hosts that carry the virus and where they live. TimeSpan, another function in Google Earth, allowed them to animate the spread of the virus over the past decade. The map is chock-full of additional information. Cl...

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(Date:4/16/2014)... store memories improves during childhood, associated with structural ... prefrontal and parietal cortices. New research from UC ... at this crucial time. Eventually, that could give ... transition into and during adolescence and affect memory, ... in the middle of the brain, the hippocampus ...
(Date:4/16/2014)... Dr. Klaus Aktories and Dr. Panagiotis Papatheodorou from the ... the University of Freiburg have discovered the receptor responsible ... perfringens into the cell. The TpeL toxin, which ... that causes gas gangrene and food poisoning. It is ... germs of the genus Clostridium . The toxins ...
(Date:4/15/2014)... 15, 2014, Irvine, Calif. UC Irvine neurobiologists have ... results when transplanted into the brains of mice with ... trial is published in the journal Stem Cells ... shown to work in two different mouse models. ... of dementia, is associated with accumulation of the protein ...
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