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Tag: "behind" at biology news

Squid skin reveals hidden messages

.... Mäthger and Hanlon maintain that the mechanism behind the transmission of polarized light through squid pigment cells warrants further study. Likewise, investigation of this masked polarization signaling system in squid and other cephalopods in natural environments would provide insight into animal camo...

Like a snail through the intestinal canal

...vement of a snail. A snail leaves a trail of slime behind it on the ground. This slimy material works simultaneously as a lubricant for gliding on and as a glue which the slug can grip hold of. An intestinal robot should also have a similar layer to use. To achieve this, an adhesive layer is added to the m...

Handling HPV vaccines and screening: The views of 100 authors

...o Dr. Xavier Bosch, Guest Editor and driving force behind this monograph; "The background, the results, the challenges and a set of proposals are analyzed by a group of 100 independent experts, leaders in the various relevant fields". This monograph was officially launched during the 23rd International Pap...

Spike in testicular cancer is focus

Pinpointing reasons behind the dramatic increase in testicular cancer, now the most common malignant cancer among 15-to-35-year-old Caucasian men, is the focus of a five-year, $5.5 million National Cancer Institute (NCI) grant to Yale Public Health researcher Tongzhang Zheng. ...

Study: Living coral reefs provide better protection from tsunami waves

...e roughness of its surface; the size of the lagoon behind it; and the slope of the coast beyond. And the ove...a very tangible way," he said. "Villages get built behind coral reefs for good reasons, and this is one of them." Kunkel said that she hoped the study would...

Dragonfly's metabolic disease provides clues about human obesity

...ll of these symptoms, and the underlying processes behind these symptoms that we're seeing in these dragonflies, are pretty much identical to what you see in mammalian metabolic syndrome and obesity," said Marden. "We're seeing it all relate back to this non-invasive protozoan in the gut." The work raises...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

...ne response and better understand the biochemistry behind caffeine-induced behavior in other organisms, namely humans. ...

New moth variety disarms plants guarded by selenium

...ypically is toxic at high levels, and the function behind the intriguing tendency of some plants to hyperaccumulate this element has been largely obscure. The so-called elemental-defense hypothesis proposes that hyperaccumulated elements serve a defensive function against herbivory, the predation of plants ...

New dyslexia theory blames 'noise'

...tes showing that infants with dyslexic parents lag behind their peers in forming categories for speech sounds. In the conclusion to their study in Psychological Science, the authors speculate that the deficit in noise exclusion may have biochemical roots in abnormal levels of GABA, a neurotransmitter th...

Chemical tests of cell growth enter third dimension

... two new technologies, Yang took the basic concept behind the FBB and combined it with laboratory testing methods that normally only grow cells in two dimensions. Such tests are normally done on cells in trays containing many tiny wells. Each well contains a growth medium and some cells, and a protein that...

MIT's molecular sieve advances protein research

...le to experimentally confirm this theoretical idea behind molecular sieving, which has been used for more than 50 years," Han said. "We can precisely control the pore size, so we can do better engineering. We can change the pore shape and engineer a better separation system." The sieve structure is based on...

LSU professor discovers new species

...." With more than 15 years of fieldwork experience behind him, Austin knew immediately that he had found a new species. After collecting the lizards, he and Das began the difficult work of proving what they already knew. "Determining that a species is new to science is a long and laborious process," said ...

Some butterflies travel farther, reproduce faster

...difference The researchers delved into what was behind these differences in egg production and development. They obtained blood samples from butterflies from old populations and new populations. Compared to females in the established patches, the females in these newly colonized patches had more total...

'Allergy cells' can aggravate cancer and psoriasis

... the number of mast cells. However, the mechanisms behind this are relatively unknown. Associate professor Gunner Nilsson at Karolinska Institutet and his research group have now found a possible explanation for the link between mast cells and several non-allergic diseases. The study, which is presented o...

'Best of both worlds' -- Targeting a single gene could inhibit bone decay and stimulate bone growth

... bone growth," said Choi. The basic principles behind bone metabolism are largely understood, hence a handful of drugs treating osteoporosis are available. Most drugs inhibit osteoclasts, which cause bone decay. But there is also at least one that stimulates osteoblasts, enhancing bone formation. A comb...

Hopkins researchers discover how brain protein might control memory

...re of 3-D space. In people, Arc may be one culprit behind certain long-term memory-based behaviors like drug addiction, the researchers say. "We think Arc controls how brain cells learn and associate behaviors and remember them over a long period of time," says Paul F. Worley, M.D., professor of neurosc...

Progress made in HIV vaccine development

... itself." As Robinson and Weinhold add, the idea behind combining strategies is that "the vaccine uses DNA to prime the immune response and a replication defective recombinant adenovirus serotype 5 vector to boost responses." ...

T-beta-RIII joins the fight against breast cancer

...tein. Further analysis revealed that the mechanism behind these protective effects of T-beta-RIII was likely to be T-beta-RIII cleavage at the cell membrane, which releases soluble T-beta-RIII that blocks TGF-beta signaling. As low levels of T-beta-RIII were found to be associated with decreased recurrence-...

Peering into the shadow world of RNA

... and with genes directly to manage the genome from behind the scenes. In particular, RNA produced by the vast stretches of DNA that do not code for any genes ?long considered “junk?DNA ?may in fact be serving vital duty by governing important aspects of gene expression. This type of RNA is called non-co...

Cities change the songs of birds

...survivor,?provides some insight into the mechanism behind the homogenizing impact of the urban environment. The capacity of great tits to sing within a relatively wide frequency range, and the ability to adjust songs by leaving out lower frequencies, seems critical to the bird’s ability to thrive despite ur...

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