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Tag: "tough" at biology news

Tweedle coat fashions stocky flies

...y are found in different parts of the cuticle--the tough outer coat in fly embryos and larvae. The exact function of the Tweedles is not known, but the researchers think they strengthen the cuticle. Make one part too weak or too strong and the larvae end up resembling their namesake. Tweedles may ...

Search on for treatment of slow-healing wounds

...s with the normal healing process and becomes very tough to eradicate," said Phil Stewart, Center for Biofilm Engineering director. "However, there is much science still to be done. Biofilms' involvement in chronic wounds is not widely accepted. This is new territory." Tens of thousands of long-term medi...

Anticipation plays a powerful role in human memory, brain study finds

...singly important role in how fresh the memory of a tough experience remains. The findings of the brain-imaging study, which appear in the current issue of the Proceedings of the National Academy of Sciences, have important implications for the treatment of psychological conditions such as post-traumatic ...

Scientists crack rhino horn riddle

...ucture of the rhino horns is similar to a pencil's tough lead core and weaker wood periphery, which allows the horns to be honed to a sharp point. The study also ends speculation that the horn was simply a clump of modified hair. "The horns most closely resemble the structure of horses' hoofs, turtl...

Ring-around-the-cell

Breaking down bone is a tough job. Yet, our bones undergo remodeling every day of our lives, as old material is cleared away so that new bone can form. In diseases such as osteoporosis, an imbalance in this process is responsible for the characteristic bone loss. New research at ...

Cancer that colonizes our bodies

... species in different ecological niches, cancer is tough to get rid of. The former University of Alberta biologist has been working with DNA ?the molecule that carries our cells?genetic information ?ever since 1947, six years before its structure was described by Watson and Crick. His fundamental Natural...

New bird, bat species revealed by extensive DNA barcode studies

... species in different ecological niches, cancer is tough to get rid of. The former University of Alberta biologist has been working with DNA ?the molecule that carries our cells?genetic information ?ever since 1947, six years before its structure was described by Watson and Crick. His fundamental Natural...

Rewarding fat rats

...ber a time when we were paralyzed in the face of a tough decision. For animals in the natural world, making the right choice can mean the difference between life and death. When rats and other animals choose the thing that leads to a "reward," such as food, changes happen in the body and the brain. Descr...

Lighting up life: Cold Spring Harbor Protocols presents tips for creating glowing plants

...pecial challenges to GFP detection: plants harbor tough cell walls and enormous subcellular structures that interfere with visualization, and their natural green pigments can mask the luminescent qualities of GFP. The current issue of Cold Spring Harbor Protocols includes a freely available article tha...

Genome sequencing reveals key to viable ethanol production

...challenging because the plants?cellulose is a very tough substance to break down, making for an inefficient process. Wu’s technique may prove much more effective than traditional methods. Instead of using separate steps to break down biomass into glucose and ferment the glucose into ethanol, as is curren...

Researchers track how spores break out of dormant state

... for extended periods and, partly because of their tough spore coat, have a significant resistance to extreme environmental factors including heat, radiation and toxic chemicals. However, once in favorable conditions, spores break the dormant state through germination and reenter the vegetative mode of rep...

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