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Tag: "harder" at biology news

Exploring the dark matter of the genome

...ragments practically assemble themselves, but it's harder to know how shorter pieces with many repeating seq... are relatively easy to perform in euchromatin but harder in heterochromatin, "because it is so rich in repeats." Smith and his colleagues found evidence ...

Research finds that circadian rhythms dominate all life functions

...he lack of oscillation. This makes the rhythm much harder to detect. "It's like a conductor walking away from an orchestra during a performance; each musician continues to play, gradually going out of key with the others," said Ptitsyn. That is one likely reason why researchers previously missed the impac...

Herpes infection may be symbiotic, help beat back some bacteria

...says. "Are there additional pathogens that find it harder to come in as a secondary infection after herpes becomes latent" Do other latent infections convey similar protective effects" These are not the kinds of questions we're accustomed to asking about such infections, but our findings suggest that we nee...

Hives ferment a yeasty brew, attract beetle pest

...s that domesticated European honeybees have a much harder time containing the beetles in their hives. European honeybees were bred to be docile and easy to work with, while African honeybees are noted for aggression and a propensity to sting. The beetles were first seen infesting U.S. beehives in Florida in...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...stance genes, human bacterial illness could become harder to treat. These concerns led the European Union to ban the use of antibiotics for growth promotion in chickens in 2006. In 2005, the U.S. Food and Drug Administration banned the use of the drug Baytril ?the brand name for enrofloxacin, a fluoroqui...

Power-boosting signal in muscle declines with age

As people age, they may have to exercise even harder to get the benefits afforded to younger folk. That...vity," Shulman said. "So, one probably has to work harder to maintain the same level of fat oxidation and mitochondrial biogenesis in muscle." The number o...

Scientists find hormone activity explains adolescent mood swings

...bertal anxiety have not been identified, making it harder to understand and treat adolescent angst. In the current edition of the journal Nature Neuroscience, researchers led by Sheryl S. Smith, PhD, professor of physiology and pharmacology at SUNY Downstate Medical Center, report findings demonstrating t...

Destructive enzyme shows a benevolent side

...how to block this protective mechanism and make it harder for cancer cells to survive cancer therapies." Schoenberg first discovered the PMR1 enzyme in 1995, and his lab has been actively studying it since that time. For this study, Schoenberg and a group of colleagues wanted to learn if the enzyme al...

Genes and genius: Researchers confirm association between gene and intelligence

...ribute to less dramatic differences have been much harder to isolate. Dick's team is not the first to notice a link between intelligence and the CHRM2 gene. In 2003, a group in Minnesota looked at a single marker in the gene and noted that the variation was related to an increase in IQ. A more recent Dut...

New research shows why too much memory may be a bad thing

...ll historical dates or long-ago events, may have a harder time with word recall or remembering the day’s cur...t events. They may have too much memory ?making it harder to filter out information and increasing the time it takes for new short-term memories to be process...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

... mean that bay scallops and other shellfish may be harder to find at the market, according to an article in the March 30 issue of the journal Science, tying two unlikely links in the food web to the same fate. A team of Canadian and American ecologists, led by world-renowned fisheries biologist Ransom Mye...

Researchers show that veins stiffen as we age

...common among older adults, Farquhar said it can be harder to find young adults who already have the disease. However, several individuals already have been identified for the study, and the team hopes to have data to report in the next six months. This research is both literally and figuratively "close to...

Microbes compete with animals for food by making it stink

...d out in the water, so maybe it's just food that's harder for predators to find," he explained. Researchers assessed their questions about feeding by conducting laboratory experiments. To eliminate food avoidance because of texture, they fed stone crabs, lesser blue crabs and striped hermit crabs nood...

Scientists crack rhino horn riddle

...iddle. The calcium deposits make the horn core harder and stronger, and the melanin protects the core from breakdown by the sun's UV rays, the scientists report. The softer outer portion of the horn weakens with sun exposure and is worn into its distinctive shape through horn clashing and by being rubbe...

Stem cells engage in dialogue with the cells that regulate their futures

...iches have been known for a long time, what's been harder to discover are the characteristics of the cells making up these niches and how they make it possible for stem cells to do their job. Signaling between cells in the niche plays a role in stem-cell upkeep and development. Most research has focused on ...

Ancient ape ruled out of man's ancestral line

... feet.? But the sediment encasing Little Foot is harder than the bone ?making extracting him a painstaking process for the South African team. And Drs Latham and Cliff have now turned their own attention to further Australopith findings at Makapansgat, also in South Africa, where other specimens of Aus...

New dyslexia theory blames 'noise'

...essential sounds that make up language. "It's harder to make a [language] task automatic when your categories are fuzzier than they ought to be to begin with," she said. "In terms of treatment, the results suggest that programs that foster the development of sharper perceptual categories for letter...

Paramecia adapt their swimming to changing gravitational force

...lipper-shaped paramecium, which consistently swims harder going up than going down, just to keep from sinkin...e magnetic field generated inside the vial "pulls" harder on the water than on the cells. If the field is pulling down, the cells float. If it's pulling up, t...

'Fruit fly dating game' provides clues to our reproductive prowess

... for how the dinosaurs were affected, that's a bit harder to say specifically, since dinosaurs did not leave a lot of fossils behind to tell the tale. "Dinosaur fossils are few and far between," Keller said. "People love the dinosaurs but we can only really study what happened to them by looking at micro...

Far more than a meteor killed dinos

... for how the dinosaurs were affected, that's a bit harder to say specifically, since dinosaurs did not leave a lot of fossils behind to tell the tale. "Dinosaur fossils are few and far between," Keller said. "People love the dinosaurs but we can only really study what happened to them by looking at micro...

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Breaking Biology News(10 mins):Scientists discover new, noncommittal mechanism of drug resistance 2Scientists discover new, noncommittal mechanism of drug resistance 3NIH scientists find 6 new genetic risk factors for Parkinson's 2
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