Tag: "shapes" at biology news

Bats in flight reveal unexpected aerodynamics

... by bats because "they can generate different wing shapes and motions that other creatures can't." "Bats have unique capabilities," says Breuer, "but the goal is not to build something that looks like a bat. We want to understand bat flight and be able to incorporate some of the features of bat flight into...

News tips from the Journal of Neuroscience

... Milbrandt Heriditary neuropathies come in many shapes and sizes. Charcot-Marie-Tooth type 2 (CMT2) causes degeneration of peripheral sensory and motor neurons, particularly at the ends of these long axons. Many cases of CMT2 arise from mutations in a mitochondrial fusion protein mitofusin 2 (MFN2). This...

Science's breakthrough of the year -- The Poincar Theorem

...sive Poincar Conjecture, which deals with abstract shapes in three-dimensional space, had finally been solved. Science and its publisher AAAS, the nonprofit society, now salute this development as the Breakthrough of the Year and also give props to nine other of the years most significant scientific accom...

Children's Hospital Oakland, Calif.'s new iron regulation discovery

...ssenger RNA) morph into specific three dimensional shapes when it combines with a protein regulator called I...ers found that when mRNA and IRP1 join they change shapes to fit each other. In addition, the IRP1 changes its role from being an enzyme to an iron regulator...

Dental crowns reveal the diet of a species

...ities for studying the relationship between dental shapes and developmental biology....

Brown scientists map structure of DNA-doctoring protein complex

...somes of target cells. This DNA doctoring not only shapes species over time, it also spreads antibiotic resistance and is used by bacteria that spread Lyme disease and by viruses linked to certain forms of cancer. Last year in Nature, scientists working in the Brown University lab of Arthur Landy and the ...

Why do males and females of some species look so different?

... has taken to generate the diversity of biological shapes and forms around us."...

Vanishing beetle horns have surprise function

...h are largely categorized according to their adult shapes with little or no heed given to the quirks of the beetles' development. Despite the growing presence of developmental biology in evolutionary studies, "Even today, evolutionary theory is very much a theory of adults," Moczek said. "But evolution d...

With fruit fly sex, researchers find mind-body connection

... isn't a simple two-track genetic system one that shapes body and one that shapes behavior. Doublesex and fruitless act together to help regulate behavior in the context of other dev...

Stormy days ahead for coral reefs

...perts have long had a general sense of which coral shapes are more vulnerable during storms than others," sa...ferent parts of the reef, incorporates the various shapes of coral colonies and calculates whether they will be dislodged during extreme weather. The resea...

Patterns on tropical marine mollusk shell mirror gene expression patterns

...ied a group of genes that control the formation of shapes and colour patterns on the shell of the tropical marine mollusc referred to as 'abalone'. A study published today in the open access journal BMC Biology reveals that the shape and colour patterns on the shell of the mollusc mirror the localised expre...

UVa finds 'Alzheimer's gene' protects children from severe diarrhea

...ickle cell gene causes red blood cells to form odd shapes and results in pain and anemia. A single "dose" of the same gene, however, makes a person resistant to malaria, a deadly tropical disease. Oria adds that if the APOE4 gene indeed proves to be a balanced polymorphism, this could greatly help us unde...

Comprehensive model is first to map protein folding at atomic level

...ing of proteins into distinctive three-dimensional shapes within the watery confines of a cell. The split-se...gangly protein chains into tight three-dimensional shapes has broad implications for the growing number of disorders believed to result from misfolded protein...

Protein structure initiative launches new resources for the scientific community

...nt pipelines for determining the three-dimensional shapes of proteins, it is creating new mechanisms for sharing the resources it has developed with the scientific community. The 10-year PSI effort, which started in 2000 and is sponsored by the National Institutes of Health's National Institute of Genera...

More human-Neandertal mixing evidence uncovered

... and colleagues radiocarbon-dated and analyzed the shapes of human bones from Romania's Pe¨tera Muierii (Cave of the Old Woman). The fossils, discovered in 1952, add to the small number of early modern human remains from Europe known to be more than 28,000 years old. Results were published in the c...

Floating lovers count too -- in the health of eagle populations

...learly defining the portion of the population that shapes density-dependent patterns may help to solve some of the ambiguities that, after some seventy years of debate, still surround density-dependence and population dynamics in general."...

News tips from the Journal of Neuroscience

...mmings, and Leonardo Belluscio Noses come in all shapes and sizes, but the internal wiring is remarkably consistent across species. Axons of neurons expressing the same odorant receptor typically converge onto a pair of glomeruli on the surface of each olfactory bulb. Glomerular pairs, sharing the same fu...

Scientists' cell discovery unearths evolutionary clues

...mation of the amoebas' cellular and multi-cellular shapes and behaviour to the molecular tree, it appeared that increased cell specialization and organism size is a major trend in the evolution of social amoeba. Professor Schaap and her team are now working to establish how the regulation and function of ...

Scientists identify 36 genes, 100 neuropeptides in honey bee brains

...nce. "Neuropeptides come in a bewildering range of shapes and sizes, and are notoriously hard to predict from a genome alone," Sweedler said. "Even if you find a gene, it is hard to say what particular peptide it will create, because neuropeptide precursors undergo extensive post-translational processing." ...

Tissue geometry plays crucial role in breast cell invasion

...standing how tissue and organs get their organized shapes and patterns, but may in the future reveal mechanisms to control cancer invasion and metastasis." In a paper published in the October 13, 2006 issue of the journal Science, Bissell and her collaborators describe a study in which the branching of mou...

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Breaking Biology News(10 mins):Half the World's Population Will Have Chip-Based National Electronic Identity (eID) Cards by 2018 2Whole-exome sequencing shows potential as diagnostic tool 2Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2
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