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Tag: "unlike" at biology news

Are U.S. Flu Death Figures More PR Than Science?

...me uses a powerful centrin-based mechanism that is unlike any complex actin or microtubule-based cellular engine, says France. "This leads us closer to understanding two things: how cells use centrin-based engines to generate enormous forces and how we can possibly reconstruct centrin-based materials and de...

Nano springs eternal; Protozoan 'engine' posts nano records

...me uses a powerful centrin-based mechanism that is unlike any complex actin or microtubule-based cellular engine, says France. "This leads us closer to understanding two things: how cells use centrin-based engines to generate enormous forces and how we can possibly reconstruct centrin-based materials and de...

Implantable pumps extend lives of patients too sick for transplant

...out from implantation," said Rogers. "Furthermore, unlike some earlier studies, there were no catastrophic mechanical failures." According to Rogers, there are a number of challenges to be addressed before the use of LVADs can be considered as a widespread destination therapy. The first challenge is selec...

Marathon of nano-sprinters

...ult of these experiments is that molecular motors, unlike railways or cars, have a strong tendency to fall off their track and diffuse away into the surrounding aqueous solution. This is a direct consequence of their nanoscale size which makes them rather susceptible to thermal noise. Thus, a single molecul...

Missing fossil link 'Dallasaurus' found

...near Dallas 17 years ago, he knew the creature was unlike anything in the fossil record. Scientists now know the significance of Turner's fossil as the origin of an extinct line of lizards with an evolutionary twist: a land-dwelling species that became fully aquatic. Turner took the remains to paleontologi...

Novel protein complex enables survival in hostile environment

... been lost or it is not recognizable because it is unlike any known system," Mukhopadhyay said. The challenge of the latter possibility attracted the group to the topic. They decided to see if methanogens that live in an environment where the early earth conditions are preserved ?deep-sea hydrothermal ven...

An essential regulator of body weight revealed

...do this, the team took advantage of the fact that, unlike humans, mice are not susceptible to the toxin produced by diphtheria bacteria. They generated genetically modified mice whose NPY/AgRP neurons produced the molecule needed to recognize and take up that toxin. Then, by administering diphtheria toxin t...

Drugs from the deep blue

...uses a different mechanism to any known drug, it's unlike anything else," Molinski said. Chemists are now investigating phorboxazole and related compounds to see if they can be made more efficiently. "It's excited a lot of chemists and cancer biologists," Molinski said. Molinski's group has also gone fis...

Breast tumors in mice eradicated using cancer vaccine

...presenting cells, where it can replicate and grow, unlike other bacteria. So, although some of the bacteria are destroyed in the vacuole that feeds the MHC class II pathway of antigen presentation with the induction of helper T cells, others survive by escaping into the cytosol of the cell. This is importan...

Green diesel: New process makes liquid transportation fuel from plants

...ergy carrier for transportation vehicles. It's not unlike the way our own bodies use carbohydrates to store energy." About 75 percent of the dry weight of herbaceous and woody biomass is comprised of carbohydrates. Because the UW-Madison process works with a range of carbohydrates, a wide range of plants, ...

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...ever is a dangerous and potentially fatal disease, unlike its more widespread cousin, Lyme disease, which is almost never fatal," he says. In the latest study, researchers at the U.S. Centers for Disease Control report on 16 cases in which two children contracted the fever and died. "Because its first sympt...

Skull study sheds light on dinosaur diversity

...anatomy. From those studies, Wilson concluded that unlike other sauropods, titanosaurs walked with their feet planted far from the middles of their bodies, an unusual style of "wide gauge" locomotion. "Most animals walk with a narrow gauge, with their feet close to the midline, because it's energetically ...

Opiate cocktail may spare cells from morphine's dark side

...as endorphins. However, morphine is unique in that unlike other opioids, it does not cause the MOP receptor to be internalized into the cell's interior after activation. It is thought that the activated receptor's persistence at the cell surface leads to a compensatory overactivation of a particular signali...

Neanderthal teeth grew no faster than comparable modern humans'

...of time is important, the researchers say, because unlike all other primates, humans have an extended period of childhood growth, during which brain matures both in size and through experiences. Some earlier hominids matured far more quickly than modern humans. "The question is when exactly did that patte...

From a Few Wild Ancestors, a Citrus Cornucopia

...imilarities between accessions. The markers -- not unlike those used in forensics for determining genetic identity and parentage -- helped the researchers identify specimens of unknown origin and differentiate between closely related species. Of the roughly 900 total accessions, about 400 of unknown, but p...

Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils

...or. "In fact, the morphology of the new fossils is unlike any living macroscopic life," Xiao said, "and at this time it is still uncertain how the Ediacara fossils from South China are related to other Ediacara organisms and to living organisms." But the new fossils surely will enlighten the ongoing debate...

Genome Sequence for Haemophilus Influenzae Completed

...ter is a scene with which we're all familiar. Yet, unlike many other mammals that spend a considerable amount of time in the water–polar bears, seals, dolphins, and whales–river otters do not have a thick layer of body fat to keep warm. They rely, instead, on a few unique adaptations; namely, their fur and ...

Otter adaptations: How do otters remain sleek and warm

...ter is a scene with which we're all familiar. Yet, unlike many other mammals that spend a considerable amount of time in the water–polar bears, seals, dolphins, and whales–river otters do not have a thick layer of body fat to keep warm. They rely, instead, on a few unique adaptations; namely, their fur and ...

Rodent social behavior encoded in junk DNA

... the bonobo, an ape noted for its empathic traits, unlike its relative the chimpanzee, has a microsatellite with a sequence similar to that of humans. Two studies have found modest associations between alterations in this microsatellite and autism in some families. As subgroups of autism spectrum disorders ...

Beyond genes: Lipid helps cell wall protein fold into proper shape

...idylethanolamine, or PE for short. Phospholipids, unlike their fatty acid and cholesterol cousins, include a phosphate group that spurs them to form a bilayer with water-friendly outer layers sandwiching an impermeable water-unfriendly inner layer that defines the outer surface of cells. Transport of nutri...

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